[0002] In the present solutions enabling opening of the roof on the circular path, vertical
sitting of the roof on the nozzle of the filling opening does not occur, and thus
the roof in the closed condition does not lie, on its whole length, on the nozzle
of the filling opening. This negatively influences tightness and loading of the roof.
For the roof that lie in closed condition on the nozzle of the filling opening on
their entire length, several gear boxes are used in the present solutions for the
function of roof opening on the non-circular path. In one specific solution, the roof
opening mechanism includes a control wheel, which is connected to the gear box by
means of the control shaft, the gear box input shaft is connected with the crank,
whereby the crank is connected to the connecting rod by means of the pivot bolt, said
connecting rod being connected to the arm, the arm has two stops for supporting the
connecting rod, the opposite end of the arm is equipped with the draw bar, whereby
the other end of the draw bar is pivotally connected to the anchoring bracket of the
whole mechanism, on the upper end of the arm, the fixed arm is connected with the
opening roof.
[0005] The mechanism for opening of the roof
11 consists of the arm
1 of the roof
11, lifting draw rod
2, pushing draw rod
3, rotary arm
4, installation
5, control draw rod
6, crank
7, control shaft
8, gear box
9, hand wheel
10 and the roof
11.
By turning the wheel
10, the gear box
9 and the control shaft
8 cause synchronic turning of the cranks
7 on both wagon ends. Rotary motion of the crank
7 will be transferred to the rotary arm
4 by means of the control draw rod
6. The initial position of the rotary arm
4, together with the lifting draw rod
2, will provide, in the first stage of opening, slightly vertical lifting of the roof
11 side, which goes over the nozzle of the filling opening during opening (Fig. 2b).
Gradually, the rotary movement of the rotary arm
4 starts to be transferred through the pushing draw rod 3 to the arm
1 of the roof
11. After turning of the arm
1 of the roof
11, the roof
11 will move on the circular path beyond the nozzle of the wagon filling opening (Fig.
2c, d). After vertical final sitting of the roof
11 onto the nozzle of the filling opening in the final stage of the roof closing movement,
the main assumption for tightening of the wagon roof
11 is provided.
In the first stage of roof opening, the mechanism provides sufficient vertical stroke
of the roof
11 side, which goes over the nozzle of the filling opening during opening. In the second
stage, the mechanism provides a fluent displacement of the roof
11 over the nozzle of the filling opening on the circular path. Control of the whole
process of opening and closing of the roof
11 is realised by the manual wheel
10. The control shaft 8, which acts as the synchronizing shaft at the same time, is
placed in the wagon bottom part. Mechanism for opening of the roof
11 with single-sided vertical final closing includes the manual wheel
10, which is connected to the control shaft
8 through the gear box
9, on both ends of the control shaft
8, the cranks
7 are installed and they are connected to the control draw rod
6, which is connected by means of an articulation with the lifting draw rod
2 for lifting of the roof
11 during opening on one edge of the nozzle of the filling opening, the other end of
the lifting draw rod
2 is connected to the roof
11, the control draw rod
6 is also connected with the rotary arm
4, the rotary arm
4 is pivotally fixed in the first installation
5 and it is connected with the pushing draw rod
3, the second end of which is connected with the arm
1, the arm
1 is also connected with the second installation
5a and the roof
11, whereby all connections are articulated ones.
