To provide a turning braking device for solving the breakage problem of the spring of a brake unit due to its repeated use, and for performing an initial brake function for a long term in a detent type turning braking device.
In the turning braking device, a plurality of concave parts 5d disposed along the tuning direction in a member on the side of a crusher main body 1; and a plurality of brake units 4 for braking the tuning operation of the crusher main body 1 by resistances when steel balls 7 as protruding parts disposed oppositely to the plurality of concave parts 5d so as to be escapable escape from the concave parts 5d, are installed in a turning mechanism part 3. Then, the plurality of brake units 4 are configured such that the steel balls 7 are pressurized to the side of the concave parts 5d so as to brake the turning operation of the crusher main body 1 by urethane springs 9.
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| JP2009262170A | 2009-11-12 | |||
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| JPH03122151U | 1991-12-13 |
Megumi Konishi
Hide Tanaka Tetsu
Ichi Hirose