Wheel turning sling of high speed motor train unit

Abstract

The invention discloses a wheel turning sling, which solves the problem that the sling needs to be replaced for two times in turning over the wheel once in the prior art. The wheel turning sling comprises a lifting beam (2), left and right lifting arms and a transmission mechanism (4); a screw rod (9) is disposed in a screw rod bearing seat (16) in the middle of a transverse beam (7); screw rod nuts are disposed at both sides of the screw rod (9); the screw rod nuts are fixedly connected with the lifting arms movably disposed on guide rails; jaws (5 ) are correspondingly disposed at the lowerends of the left and right lifting arms (1 and 3); one end of the screw rod (9) is fixedly connected with the output shaft of a clamping speed reducing motor (13) through a spline housing (14); a rotary speed reducing motor (17) and the clamping speed reducing motor (13) are arranged on the lifting arm (2); a right rotary double chain wheel (18) is disposed on the output shaft of the rotary speedreducing motor (17); and chains are disposed among a jaw turning chain wheel, a rotary active chain wheel and a force transmission chain wheel. The wheel turning time is shortened by the wheel turning sling.

Description

technical field [0001] The invention relates to an overturning spreader for wheels of a high-speed EMU. Background technique [0002] In the wheel production of the existing high-speed EMUs, due to the different processing procedures of the wheels, the placement posture of the wheels needs to be changed frequently. There are three placement postures of the wheels that need to be placed horizontally, vertically and obliquely. The existing wheel spreader can only realize the lifting and lowering of the wheel, and the wheel cannot be turned over at a certain angle during the lifting process. When the wheel needs to be placed in a different position, a soft sling is usually used to pass through the center hole of the wheel Lift it and place it on a specific platform, and then use other spreaders to lift the wheel and place it at the designated position. Therefore, it is necessary to replace the spreader twice once the wheel is turned over, which has the problems of low producti...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a wheel turning spreader for high-speed EMUs, which solves the problems of low production efficiency and great potential safety hazards in the operation process in the prior art where the wheel needs to be replaced twice for turning over once.

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