TECHNICAL FIELD
[0001] The present invention relates to the field of cup-shaped wheel technologies, and
in particular to a cooling structure of a high-speed cup-shaped wheel.
BACKGROUND
[0002] A cup-shaped wheel mainly works in three major modes. In the first mode, as shown
in FIG. 1 and FIG. 2, a front ring works, and this mode is characterized in that an
axial height at an outer circle of a working surface of a blade ring is lower than
an axial height at an inner circle of the working surface of the blade ring, and the
inner circle of the working surface of the blade ring is finally in contact with a
workpiece. In the second mode, as shown in FIG. 3 and FIG. 4, a back ring works, and
this mode is characterized in that the axial height at the outer circle of the working
surface of the blade ring is higher than the axial height at the inner circle of the
working surface of the blade ring, and the outer circle of the working surface of
the blade ring is finally in contact with the workpiece. In a third mode, as shown
in FIG. 5, both the front ring and the back ring work, and this mode is characterized
in that the axial height at the outer circle of the working surface of the blade ring
is lower than the axial height at the inner circle of the working surface of the blade
ring, and the inner circle of the working surface of the blade ring is finally in
contact with the workpiece. After the running-in of the grinding surface of the blade
ring in the three modes, with small variation in depth-of-cut and normal abrasion,
an axial height difference between an outer diameter and an inner diameter of the
grinding surface shows a curved surface form associated with the depth-of-cut.
[0003] In a through-blade ring-type cup-shaped grinding wheel of the prior art, two adjacent
blades are spaced apart to form a water passage channel capable of delivering cooling
water to a working surface, and the water passage channel has a through structure
in a radial direction of a blade ring. When the cup-shaped grinding wheel rotates
at a high speed, most of the cooling water entering the blade ring via an inner radial
cavity will be thrown out toward the outer circle side of the blade ring via the water
passage channel under a centrifugal force since the water passage channel has a through
structure in the radial direction of the blade ring, such that the cooling effect
on the working surface is extremely poor. Moreover, the amount of cooling water flowing
along the inner circle sidewall of the blade ring to the working surface of the blade
ring is very small, and the water in a bundle state is easily atomized into small
water droplets by an "airflow barrier", which attenuates the cooling effect. Therefore,
a region of the working surface close to the inner circle of the blade ring has no
cooling water or insufficient cooling water, failing to achieve sufficient cooling.
[0004] In an inner blade ring-type cup-shaped grinding wheel of the prior art, the outer
side of a blade ring is blocked, that is, an end of a water passage channel close
to an outer circle of the blade ring is blocked. When the cup-shaped grinding wheel
rotates at a high speed, most of the cooling water entering an inner circle of the
blade ring via an inner radial cavity will tend to gather at the end of the water
passage channel close to the outer circle of the blade ring under a centrifugal force,
and be thrown out from a region of the working surface close to the outer circle of
the blade ring, and the region of the working surface close to the outer circle of
the blade ring can be sufficiently cooled at this time. However, the region of the
working surface close to the inner circle of the blade ring has no cooling water or
insufficient cooling water, failing to achieve sufficient cooling.
SUMMARY
[0005] The present invention is intended to solve one of the above-mentioned technical problems
in the prior art to some extent. To this end, an object of the present invention is
to provide a cooling structure of a high-speed cup-shaped wheel, in order to improve
the cooling efficiency and the utilization efficiency of cooling water and advantageously
improve the grinding stability and grinding quality.
[0006] The technical solution for the present invention to solve the above-mentioned technical
problems is as follows. A cooling structure of a high-speed cup-shaped wheel includes
a base and a blade ring, wherein the blade ring is arranged on the base and is fixedly
connected to the base; the blade ring is provided with a plurality of water channel
groups, which is sequentially arranged at intervals in a circumferential direction
of the blade ring; and
each of the water channel groups includes two or more inner water channels, which
are sequentially arranged at intervals in the circumferential direction of the blade
ring, the width of each of the two or more inner water channels in a radial direction
of the blade ring being gradually increased.
[0007] The present invention has the following beneficial effects: the cooling water flowing
out of the two or more inner water channels different in width can cover the entire
working surface, thereby improving the cooling efficiency for the working surface
and avoiding the failure of sufficient cooling on some regions of the working surface;
the cooling water covers the entire working surface, such that the utilization efficiency
of the cooling water can be effectively improved; the influences from machining parameters
can also be reduced to advantageously improve the grinding stability and grinding
quality; and the cooling water covering the entire working surface can also allow
the cup-shaped wheel to adapt to high-speed grinding.
[0008] On the basis of the above-mentioned technical solution, the present invention can
implement further improvements as described below.
[0009] Further, a number of the inner water channels in each of the water channel groups
has a directly proportional relationship with a depth-of-cut of the blade ring.
[0010] The beneficial effect of adopting the above-mentioned further solution is that, with
more inner water channels in each water channel group, the outflow uniformity of the
cooling water is improved to ensure that the cooling water completely covers the entire
working surface, thereby meeting the requirement of the cup-shaped wheel for high-speed
machining and improving the cooling efficiency and cooling completeness.
[0011] Further, a width difference between two adjacent inner water channels in each of
the water channel groups in the radial direction of the blade ring has an inversely
proportional relationship with the number of the inner water channels.
[0012] The beneficial effect of adopting the above-mentioned further solution is that when
the cooling water is allowed to flow through the two or more inner water channels,
the outer or inner circle edge of the blade ring can be covered with the cooling water
to ensure that the cooling water completely covers the entire working surface, thereby
meeting the requirement of the cup-shaped wheel for high-speed machining and improving
the cooling efficiency and cooling completeness.
[0013] Further, the larger the width of each of the inner water channels in each of the
water channel groups in the radial direction of the blade ring, the larger a circumferential
spacing between the inner water channel and the adjacent inner water channel thereof.
[0014] The beneficial effect of adopting the above-mentioned further solution is that with
larger circumferential spacing between adjacent inner water channels, the strength
of the working surface corresponding to a region between two adjacent inner water
channels is ensured, such that the cup-shaped wheel can adapt to high-speed grinding.
[0015] Further, a spacing between the inner water channel, having a maximum width in the
radial direction of the blade ring, in each of the water channel groups and the adjacent
inner water channel thereof is W1; a spacing between the inner water channel, having
a minimum width in the radial direction of the blade ring, in the water channel group
and the adjacent inner water channel thereof is W2; a spacing between the inner water
channel, having the minimum width in the radial direction of the blade ring, in the
water channel group and the inner water channel, having the maximum width in the radial
direction of the blade ring, in the adjacent water channel group thereof is W3; and
W1>W3>W2.
[0016] The beneficial effect of adopting the above-mentioned further solution is that ensuring
the strength of the working surface corresponding to the region between two adjacent
inner water channels can further ensure the strength of the working surface corresponding
to a region between two adjacent water channel groups, such that the cup-shaped wheel
can adapt to high-speed grinding.
[0017] Further, a cooling coverage area between the inner water channel, having the maximum
width in the radial direction of the blade ring, in each of the water channel groups
and the adjacent inner water channel thereof is S 1; a cooling coverage area between
the inner water channel, having the minimum width in the radial direction of the blade
ring, in the water channel group and the adjacent inner water channel thereof is S2;
a cooling coverage area between the inner water channel, having the minimum width
in the radial direction of the blade ring, in the water channel group and the inner
water channel, having the maximum width in the radial direction of the blade ring,
in the adjacent water channel group thereof is S3; and S1>S3>S2.
[0018] The beneficial effect of adopting the above-mentioned further solution is that ensuring
the strength of the working surface corresponding to the region between two adjacent
inner water channels can further ensure the strength of the working surface corresponding
to a region between two adjacent water channel groups, such that the cup-shaped wheel
can adapt to high-speed grinding.
[0019] Further, the inner water channel, having the maximum width in the radial direction
of the blade ring, in each of the water channel groups is close to an outer circle
edge of the blade ring.
[0020] The beneficial effect of adopting the above-mentioned further solution is that the
cooling water flowing out of the inner water channel having the maximum width in the
radial direction of the blade ring can cover the outer circle edge of the blade ring
to improve the cooling efficiency.
[0021] Further, the two or more inner water channels each have a roundabout structure, and
an axis of each of the two or more inner water channels deviates from a circle center
of the blade ring.
[0022] Further, each of the water channel groups includes a water passage channel, which
is arranged at a side of the inner water channel, having the largest length in the
radial direction of the blade ring, in the water channel group.
[0023] The beneficial effect of adopting the above-mentioned further solution is that the
cooling water is thrown out via the water passage channels towards the outer circle
of the blade ring, in order to cover the outer circle region of the blade ring, thereby
improving the cooling efficiency of the blade ring.
[0024] Further, the water passage channel has a roundabout structure, and has an axis deviating
from the circle center of the blade ring.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025]
FIG. 1 is a first schematic implementation diagram of a cup-shaped wheel in the prior
art in a mode where a front ring works;
FIG. 2 is a second schematic implementation diagram of the cup-shaped wheel in the
prior art in a mode where the front ring works;
FIG. 3 is a first schematic implementation diagram of the cup-shaped wheel in the
prior art in a mode where a back ring works;
FIG. 4 is a second schematic implementation diagram of the cup-shaped wheel in the
prior art in a mode where the back ring works;
FIG. 5 is a schematic implementation diagram of the cup-shaped wheel of the prior
art in a mode where both the front ring and the back ring work;
FIG. 6 is a front view of a cup-shaped wheel with respect to Embodiment 1 according
to the present invention;
FIG. 7 is a schematic enlarged view of Part A in FIG. 6;
FIG. 8 is a front view of a cup-shaped wheel with respect to Embodiment 2 according
to the present invention; and
FIG. 9 is a schematic enlarged view of Part B in FIG. 8.
[0026] In the accompanying drawings, components represented by respective reference numerals
are listed below:
1, base;
2, blade ring; 2.1, working surface;
3, water channel group; 3.1, inner water channel; 3.2, water passage channel; and
4, workpiece.
DETAILED DESCRIPTION
[0027] The principles and features of the present invention will be described below in conjunction
with the accompanying drawings. The examples are only used to explain the present
invention only, and are not intended to limit the scope of the present invention.
Embodiment 1:
[0028] As shown in FIG. 6 and FIG. 7, a cooling structure of a high-speed cup-shaped wheel
includes a base 1 and a blade ring 2. The blade ring 2 is arranged on the base 1 and
fixedly connected to the base 1. The blade ring 2 is provided with a plurality of
water channel groups 3, which is sequentially arranged at intervals in a circumferential
direction of the blade ring 2.
[0029] Each of the water channel groups 3 includes two or more inner water channels 3.1,
which are sequentially arranged at intervals in the circumferential direction of the
blade ring 2. The width of each of the two or more inner water channels 3.1 in a radial
direction of the blade ring 2 is gradually increased.
[0030] Cooling water is introduced at the center of the base 1 and enters the inner water
channels 3.1. Under the action of a centrifugal force, the cooling water flows from
the end of each inner water channel 3.1 close to the inner circle of the blade ring
2 to the end of the inner water channel 3.1 close to the outer circle of the blade
ring 2. Because the end of the inner water channel 3.1 close to the outer circle of
the blade ring 2 is blocked, the cooling water flows out to a working surface 2.1
of the blade ring 2, and flows on the working surface 2.1 along a tangential direction
of the inner water channel 3.1, such that the cooling water cools a partial region
of the working surface 2.1.
[0031] The width of each of the two or more inner water channels 3.1 in the radial direction
of the blade ring 2 increases gradually, and the cooling water flowing out of the
inner water channels 3.1 different in width can cover the entire working surface 2.1,
thereby improving the cooling efficiency for the working surface 2.1 and avoiding
the failure of sufficient cooling on some regions of the working surface 2.1; the
cooling water covers the entire working surface 2.1, such that the utilization efficiency
of the cooling water can be effectively improved; the influences from machining parameters
can also be reduced to advantageously improve the grinding stability and grinding
quality; and the cooling water covering the entire working surface 2.1 can also allow
the cup-shaped wheel to adapt to high-speed grinding.
[0032] One end of the inner water channel 3.1 is communicated to the inner circle of the
blade ring 2, and the other end of the inner water channel 3.1 is close to the outer
circle of the blade ring 2 and is blocked. The cooling structure is simple and is
convenient to machine, and the cost can be effectively reduced.
[0033] In the above-mentioned embodiment, the number of the inner water channels 3.1 in
each of the water channel groups 3 has a directly proportional relationship with a
depth-of-cut of the blade ring 2.
[0034] That is, the larger the depth-of-cut of the blade ring 2 of the cup-shaped wheel,
the more the inner water channels 3.1 in each of the water channel groups 3, such
that the outflow uniformity of the cooling water is improved to ensure that the cooling
water completely covers the entire working surface 2.1, thereby meeting the requirement
of the cup-shaped wheel for high-speed machining and improving the cooling efficiency
and cooling completeness.
[0035] In the above-mentioned embodiment, a width difference between two adjacent inner
water channels 3.1 in each of the water channel groups 3 in the radial direction of
the blade ring 2 has an inversely proportional relationship with the number of the
inner water channels 3.1.
[0036] That is, when the depth-of-cut of the blade ring 2 of the cup-shaped wheel becomes
larger, the more the inner water channels 3.1 in each of the water channel groups
3, the smaller the width difference, in the radial direction of the blade ring 2,
between two adjacent inner water channels 3.1. However, the inner water channel 3.1,
having the minimum width in the radial direction of the blade ring 2, in each of the
water channel groups 3 is smaller. That is, the width of each inner water channel
3.1 in the radial direction of the blade ring 2 decreases with the increase of the
depth-of-cut of the blade ring 2.
[0037] When the cooling water is allowed to flow through two or more inner water channels
3.1, the outer or inner circle edge of the blade ring 2 can be covered with the cooling
water to ensure that the cooling water completely covers the entire working surface
2.1, thereby meeting the requirement of the cup-shaped wheel for high-speed machining
and improving the cooling efficiency and cooling completeness.
[0038] In the above-mentioned embodiment, the larger the width of each of the inner water
channels 3.1 in each of the water channel groups 3 in the radial direction of the
blade ring 2, the larger a circumferential spacing between the inner water channel
and the adjacent inner water channel 3.1 thereof.
[0039] With a larger circumferential spacing between adjacent inner water channels 3.1,
the strength of the working surface 2.1 corresponding to the region between the two
adjacent inner water channels 3.1 is ensured, such that the cup-shaped wheel can adapt
to high-speed grinding.
[0040] In the above-mentioned embodiment, a spacing between the inner water channel 3.1,
having a maximum width in the radial direction of the blade ring 2, in each of the
water channel groups 3 and the adjacent inner water channel 3.1 thereof is W1; a spacing
between the inner water channel 3.1, having a minimum width in the radial direction
of the blade ring 2, in the water channel group 3 and the adjacent inner water channel
3.1 thereof is W2; a spacing between the inner water channel 3.1, having the minimum
width in the radial direction of the blade ring 2, in the water channel group 3 and
the inner water channel 3.1, having the maximum width in the radial direction of the
blade ring 2, in the adjacent water channel group 3 thereof is W3; and W1>W3>W2.
[0041] W1 is also a circumferential distance between the inner water channel 3.1 having
the maximum width in the radial direction of the blade ring 2 and the adjacent inner
water channel 3.1 thereof; W2 is also a circumferential distance between the inner
water channel 3.1 having the minimum width in the radial direction of the blade ring
2 and the adjacent inner water channel 3.1; and W3 is also a circumferential distance
between the inner water channel 3.1 having the minimum width in the radial direction
of the blade ring 2 and the inner water channel 3.1, having the maximum width in the
radial direction of the blade ring 2, in the adjacent water channel group 3.
[0042] By setting W1>W3>W2, the strength of the working surface 2.1 corresponding to a region
between the two adjacent inner water channels 3.1 is ensured, and the strength of
the working surface 2.1 corresponding to a region between the two adjacent channel
groups 3 is also ensured, such that the cup-shaped wheel can adapt to high-speed grinding.
[0043] In the above-mentioned embodiment, a cooling coverage area between the inner water
channel 3.1, having the maximum width in the radial direction of the blade ring 2,
in each of the water channel groups 3 and the adjacent inner water channel 3.1 thereof
is S1; a cooling coverage area between the inner water channel 3.1, having the minimum
width in the radial direction of the blade ring 2, in the water channel group 3 and
the adjacent inner water channel 3.1 thereof is S2; a cooling coverage area between
the inner water channel 3.1, having the minimum width in the radial direction of the
blade ring 2, in the water channel group 3 and the inner water channel 3.1, having
the maximum width in the radial direction of the blade ring 2, in the adjacent water
channel group 3 thereof is S3; and S1>S3>S2.
[0044] By setting S1>S3>S2, the strength of the working surface 2.1 corresponding to the
region between the two adjacent inner water channels 3.1 is ensured, and the strength
of the working surface 2.1 corresponding to the region between the two adjacent channel
groups 3 is also ensured, such that the cup-shaped wheel can adapt to high-speed grinding.
[0045] In the above-mentioned embodiment, the inner water channel 3.1, having the maximum
width in the radial direction of the blade ring 2, in each of the water channel groups
3 is close to an outer circle edge of the blade ring 2.
[0046] The end of the inner water channel 3.1, having the maximum width in the radial direction
of the blade ring 2, close to the outer circle edge of the blade ring 2 is infinitely
close to the outer circle edge of the blade ring 2 to allow that a spacing between
the inner water channel 3.1 and the outer circle edge of the blade ring 2 is infinitely
close to zero, such that the cooling water flowing out from the inner water channel
3.1, having the maximum width in the radial direction of the blade ring 2, can cover
the outer circle edge of the blade ring 2, thereby improving the cooling efficiency.
[0047] In the above-mentioned embodiment, the two or more inner water channels 3.1 each
have a roundabout structure, and an axis of each of the two or more inner water channels
3.1 deviates from a circle center of the blade ring 2.
[0048] As shown in FIG.6, when the cooling structure of the high-speed cup-shaped wheel
in this embodiment rotates counterclockwise, the strength of the blade ring 2 can
be improved favorably; and when the cooling structure of the high-speed cup-shaped
wheel rotates clockwise, the utilization ratio of the cooling water can be increased
favorably.
Embodiment 2:
[0049] As shown in FIG. 8 and FIG. 9, a cooling structure of a high-speed cup-shaped wheel
includes a base 1 and a blade ring 2. The blade ring 2 is arranged on the base 1 and
fixedly connected to the base 1. The blade ring 2 is provided with a plurality of
water channel groups 3, which is sequentially arranged at intervals in a circumferential
direction of the blade ring 2.
[0050] Each of the water channel groups 3 includes two or more inner water channels 3.1,
which are sequentially arranged at intervals in the circumferential direction of the
blade ring 2. The width of each of the two or more inner water channels 3.1 in a radial
direction of the blade ring 2 is gradually increased.
[0051] Cooling water is introduced at the center of the base 1 and enters the inner water
channels 3.1. Under the action of a centrifugal force, the cooling water flows from
the end of each inner water channel 3.1 close to the inner circle of the blade ring
2 to the end of the inner water channel 3.1 close to the outer circle of the blade
ring 2. Because the end of the inner water channel 3.1 close to the outer circle of
the blade ring 2 is blocked, the cooling water flows out to a working surface 2.1
of the blade ring 2, and flows on the working surface 2.1 along a tangential direction
of the inner water channel 3.1, such that the cooling water cools a partial region
on the working surface 2.1.
[0052] The width of each of the two or more inner water channels 3.1 in the radial direction
of the blade ring 2 increases gradually, and the cooling water flowing out of the
inner water channels 3.1 different in width can cover the entire working surface 2.1,
thereby improving the cooling efficiency for the working surface 2.1 and avoiding
the failure of sufficient cooling on some regions of the working surface 2.1; the
cooling water covers the entire working surface 2.1, such that the utilization efficiency
of the cooling water can be effectively improved; the influences from machining parameters
can also be reduced to advantageously improve the grinding stability and grinding
quality; and the cooling water covering the entire working surface 2.1 can also allow
the cup-shaped wheel to adapt to high-speed grinding.
[0053] One end of the inner water channel 3.1 is communicated to the inner circle of the
blade ring 2, and the other end of the inner water channel 3.1 is close to the outer
circle of the blade ring 2 and is blocked. The cooling structure is simple and is
convenient to machine, and the cost can be effectively reduced.
[0054] In the above-mentioned embodiment, the number of the inner water channels 3.1 in
each of the water channel groups 3 has a directly proportional relationship with a
depth-of-cut of the blade ring 2.
[0055] That is, the larger the depth-of-cut of the blade ring 2 of the cup-shaped wheel,
the more the inner water channels 3.1 in each of the water channel groups 3, such
that the outflow uniformity of the cooling water is improved to ensure that the cooling
water completely covers the entire working surface 2.1, thereby meeting the requirement
of the cup-shaped wheel for high-speed machining and improving the cooling efficiency
and cooling completeness.
[0056] In the above-mentioned embodiment, a width difference between two adjacent inner
water channels 3.1 in each of the water channel groups 3 in the radial direction of
the blade ring 2 has an inversely proportional relationship with the number of the
inner water channels 3.1.
[0057] That is, when the depth-of-cut of the blade ring 2 of the cup-shaped wheel becomes
larger, the more the inner water channels 3.1 in each of the water channel groups
3, the smaller the width difference, in the radial direction of the blade ring 2,
between two adjacent inner water channels 3.1. However, the width of the inner water
channel 3.1, having the minimum width in the radial direction of the blade ring 2,
in each of the water channel groups 3 is smaller. That is, the width of each inner
water channel 3.1 in the radial direction of the blade ring 2 decreases with the increase
of the depth-of-cut of the blade ring 2.
[0058] When the cooling water is allowed to flow through two or more inner water channels
3.1, the outer or inner circle edge of the blade ring 2 can be covered with the cooling
water to ensure that the cooling water completely covers the entire working surface
2.1, thereby meeting the requirement of the cup-shaped wheel for high-speed machining
and improving the cooling efficiency and cooling completeness.
[0059] In the above-mentioned embodiment, the larger the width of each of the inner water
channels 3.1 in each of the water channel groups 3 in the radial direction of the
blade ring 2, the larger a circumferential spacing between the inner water channel
and the adjacent inner water channel 3.1 thereof.
[0060] With a larger circumferential spacing between adjacent inner water channels 3.1,
the strength of the working surface 2.1 corresponding to a region between the two
adjacent inner water channels 3.1 is ensured, such that the cup-shaped wheel can adapt
to high-speed grinding.
[0061] In the above-mentioned embodiment, a spacing between the inner water channel 3.1,
having a maximum width in the radial direction of the blade ring 2, in each of the
water channel groups 3 and the adjacent inner water channel 3.1 thereof is W1; a spacing
between the inner water channel 3.1, having a minimum width in the radial direction
of the blade ring 2, in the water channel group 3 and the adjacent inner water channel
3.1 thereof is W2; a spacing between the inner water channel 3.1, having the minimum
width in the radial direction of the blade ring 2, in the water channel group 3 and
the inner water channel 3.1, having the maximum width in the radial direction of the
blade ring 2, in the adjacent water channel group 3 thereof is W3; and W1>W3>W2.
[0062] By setting W1>W3>W2, the strength of the working surface 2.1 corresponding to the
region between the two adjacent inner water channels 3.1 is ensured, and the strength
of the working surface 2.1 corresponding to the region between the two adjacent channel
groups 3 is also ensured, such that the cup-shaped wheel can adapt to high-speed grinding.
[0063] In the above-mentioned embodiment, a cooling coverage area between the inner water
channel 3.1, having the maximum width in the radial direction of the blade ring 2,
in each of the water channel groups 3 and the adjacent inner water channel 3.1 thereof
is S1; a cooling coverage area between the inner water channel 3.1, having the minimum
width in the radial direction of the blade ring 2, in the water channel group 3 and
the adjacent inner water channel 3.1 thereof is S2; a cooling coverage area between
the inner water channel 3.1, having the minimum width in the radial direction of the
blade ring 2, in the water channel group 3 and the inner water channel 3.1, having
the maximum width in the radial direction of the blade ring 2, in the adjacent water
channel group 3 thereof is S3; and S1>S3>S2.
[0064] By setting S1>S3>S2, the strength of the working surface 2.1 corresponding to the
region between the two adjacent inner water channels 3.1 is ensured, and the strength
of the working surface 2.1 corresponding to the region between the two adjacent channel
groups 3 is also ensured, such that the cup-shaped wheel can adapt to high-speed grinding.
[0065] In the above-mentioned embodiment, the inner water channel 3.1, having the maximum
width in the radial direction of the blade ring 2, in each of the water channel groups
3 is close to an outer circle edge of the blade ring 2.
[0066] The end of the inner water channel 3.1, having the maximum width in the radial direction
of the blade ring 2, close to the outer circle edge of the blade ring 2 is infinitely
close to the outer circle edge of the blade ring 2 to allow that a spacing between
the inner water channel 3.1 and the outer circle edge of the blade ring 2 is infinitely
close to zero, such that the cooling water flowing out from the inner water channel
3.1, having the maximum width in the radial direction of the blade ring 2, can cover
the outer circle edge of the blade ring 2, thereby improving the cooling efficiency.
[0067] In the above-mentioned embodiment, each of the water channel groups 3 includes a
water passage channel 3.2, which is arranged at a side of the inner water channel
3.1, having the largest length in the radial direction of the blade ring 2, in the
water channel group 3.
[0068] The cooling water is introduced at the center of the base 1 and enters the water
passage channels 3.2. Under the action of a centrifugal force, the cooling water is
thrown out towards the outer circle side of the blade ring 2 to cover the outer circle
region of the blade ring 2, thereby improving the cooling efficiency of the blade
ring 2.
[0069] In the above-mentioned embodiment, the two or more inner water channels 3.1 each
have a roundabout structure, and an axis of each of the two or more inner water channels
3.1 deviates from a circle center of the blade ring 2; and the water passage channel
3.2 has a roundabout structure, and has an axis deviating from the circle center of
the blade ring 2.
[0070] The two or more inner water channels 3.1 and the water passage channels 3.2 each
have a roundabout structure, and an axis of each of the two or more inner water channels
3.1 and the water passage channels 3.2 deviates from the circle center of the blade
ring 2.
[0071] Described above are merely preferred embodiments of the present invention, which
are not intended to limit the present invention. Any modifications, equivalent replacements,
improvements and the like made within the spirit and principle of the present invention
shall be included within the scope of protection of the present invention.
1. A cooling structure of a high-speed cup-shaped wheel, comprising a base (1) and a
blade ring (2), the blade ring (2) being arranged on the base (1) and fixedly connected
to the base (1), wherein the blade ring (2) is provided with a plurality of water
channel groups (3), which is sequentially arranged at intervals in a circumferential
direction of the blade ring (2); and
each of the water channel groups (3) comprises two or more inner water channels (3.1),
which are sequentially arranged at intervals in the circumferential direction of the
blade ring (2), the width of each of the two or more inner water channels (3.1) in
a radial direction of the blade ring (2) being gradually increased.
2. The cooling structure of the high-speed cup-shaped wheel according to claim 1, wherein
a number of the inner water channels (3.1) in each of the water channel groups (3)
has a directly proportional relationship with a depth-of-cut of the blade ring (2).
3. The cooling structure of the high-speed cup-shaped wheel according to claim 2, wherein
a width difference between two adjacent inner water channels (3.1) in each of the
water channel groups (3) in the radial direction of the blade ring (2) has an inversely
proportional relationship with the number of the inner water channels (3.1).
4. The cooling structure of the high-speed cup-shaped wheel according to claim 3, wherein
the larger the width of each of the inner water channels (3.1) in each of the water
channel groups (3) in the radial direction of the blade ring (2), the larger a circumferential
spacing between the inner water channel (3.1) and the adjacent inner water channel
(3.1) thereof.
5. The cooling structure of the high-speed cup-shaped wheel according to claim 4, wherein
a spacing between the inner water channel (3.1), having a maximum width in the radial
direction of the blade ring (2), in each of the water channel groups (3) and the adjacent
inner water channel (3.1) thereof is W1; a spacing between the inner water channel
(3.1), having a minimum width in the radial direction of the blade ring (2), in the
water channel group (3) and the adjacent inner water channel (3.1) thereof is W2;
a spacing between the inner water channel (3.1), having the minimum width in the radial
direction of the blade ring (2), in the water channel group (3) and the inner water
channel (3.1), having the maximum width in the radial direction of the blade ring
(2), in the adjacent water channel group (3) thereof is W3; and W1>W3>W2.
6. The cooling structure of the high-speed cup-shaped wheel according to claim 4, wherein
a cooling coverage area between the inner water channel (3.1), having the maximum
width in the radial direction of the blade ring (2), in each of the water channel
groups (3) and the adjacent inner water channel (3.1) thereof is S 1; a cooling coverage
area between the inner water channel (3.1), having the minimum width in the radial
direction of the blade ring (2), in the water channel group (3) and the adjacent inner
water channel (3.1) thereof is S2; a cooling coverage area between the inner water
channel (3.1), having the minimum width in the radial direction of the blade ring
(2), in the water channel group (3) and the inner water channel (3.1), having the
maximum width in the radial direction of the blade ring (2), in the adjacent water
channel group (3) thereof is S3; and S1>S3>S2.
7. The cooling structure of the high-speed cup-shaped wheel according to claim 1, wherein
the inner water channel (3.1), having the maximum width in the radial direction of
the blade ring (2), in each of the water channel groups (3) is close to an outer circle
edge of the blade ring (2).
8. The cooling structure of the high-speed cup-shaped wheel according to claim 1, wherein
the two or more inner water channels (3.1) each have a roundabout structure, and an
axis of each of the two or more inner water channels (3.1) deviates from a circle
center of the blade ring (2).
9. The cooling structure of the high-speed cup-shaped wheel according to any one of claims
1 to 8, wherein each of the water channel groups (3) comprises a water passage channel
(3.2), which is arranged at a side of the inner water channel (3.1), having the largest
length in the radial direction of the blade ring (2), in the water channel group (3).
10. The cooling structure of the high-speed cup-shaped wheel according to claim 9, wherein
the water passage channel (3.2) has a roundabout structure, and has an axis deviating
from the circle center of the blade ring (2).