EP 3256257 A1 20171220 - GRINDING ROLLER AND METHODS FOR PULLING OFF A STRAP AND SHRINKING A STRAP ONTO THE SHAFT OF THE GRINDING ROLLER
Title (en)
GRINDING ROLLER AND METHODS FOR PULLING OFF A STRAP AND SHRINKING A STRAP ONTO THE SHAFT OF THE GRINDING ROLLER
Title (de)
MAHLWALZE UND VERFAHREN ZUM ABZIEHEN EINER BANDAGE UND AUFSCHRUMPFEN EINER BANDAGE AUF DIE WELLE DER MAHLWALZE
Title (fr)
ROULEAU BROYEUR ET PROCÉDÉ DE RETRAIT D'UN BANDAGE ET DE RÉTRACTION D'UN BANDAGE SUR L'ARBRE DU ROULEAU BROYEUR
Publication
Application
Priority
- DE 102015001617 A 20150209
- EP 2016052270 W 20160203
Abstract (en)
[origin: WO2016128274A1] The invention relates to a grinding roller (2) of a high-pressure roller press, comprising a shaft (1) and a wear-resistant strap (3), wherein the strap (3) is frictionally shrunk onto the shaft (1). The invention further relates to a method for separating a strap (3) and a shaft (1) in the case of such a grinding roller (2) and to a method for frictionally connecting a strap (3) and a shaft (1) in order to form such a grinding roller (2). According to the invention, the shaft (1) has a plurality of cooling bores (5) passing through in the axial direction for gaseous or liquid coolant to flow through said cooling bores, wherein the cooling bores (5) are arranged in the outer region of the shaft (1). Furthermore, in order to separate the strap (3) from the shaft (1), according to the invention, the strap (3) is heated by supplying heat from outside, the shaft (1) is simultaneously cooled by means of a coolant flowing through the cooling bores (5), and the strap (3) is pulled off from the shaft (1) in the longitudinal direction.
IPC 8 full level
CPC (source: CN EP)
B02C 4/02 (2013.01 - CN EP); B02C 4/30 (2013.01 - CN EP); B02C 4/44 (2013.01 - EP)
Citation (search report)
See references of WO 2016128274A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102015001617 B3 20160602; DE 102015001617 C5 20200813; CN 107206385 A 20170926; CN 107206385 B 20190806; DK 3256257 T3 20181210; EP 3256257 A1 20171220; EP 3256257 B1 20180815; WO 2016128274 A1 20160818
DOCDB simple family (application)
DE 102015001617 A 20150209; CN 201680009191 A 20160203; DK 16703496 T 20160203; EP 16703496 A 20160203; EP 2016052270 W 20160203