Derailment valve pull ring cold pull correction device
A ring cooling and derailment technology, applied in metal processing equipment and other directions, can solve the problems of not easy to guarantee the quality of correction, cumbersome steps, low efficiency, etc., and achieve the effect of simple and efficient correction process and high degree of mechanization.
Active Publication Date: 2020-09-29
CRRC SHIJIAZHUANG CO LTD
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Problems solved by technology
The existing derailment valve pull ring correction method is cumbersome and inefficient, and the correction quality is not easy to guarantee; especially the correct position of the pin hole at the end of the side rod is directly related to the normal use of the derailment valve pull ring. It is difficult to directly guarantee the correct position after correction
Method used
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specific Embodiment approach
[0050] As a specific implementation of the derailment valve pull ring cold-drawing correction device provided by the present invention, please refer to Figure 8 , the clip joint 32 also includes a sleeve 322, a sliding mandrel 323 and a stub 324;
[0051] The first end of the sleeve 322 is used to extend into the inside of the side rod 41 from the end of the side rod 41, and the second end is fixedly connected with the universal joint 31; Positive sliding hole, the pipe wall at the second end of the casing 322 is provided with a long slot 3221; the twisting block 321 is detachably arranged in the long slot 3221 and protrudes from the surface of the casing 322;
[0052] The sliding mandrel 323 is arranged in the sleeve 322 and is slidably connected with the sleeve 322. The outer wall of the first end of the sliding mandrel 323 is provided with a T-shaped groove 3231, and the outer wall of the second end is provided with a slot for aligning with the long slot hole 3221. The di...
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The invention provides a cold-drawing straightening device for a draw ring of a derailing valve and belongs to the technical field of maintenance of railway freight cars. The device comprises a rack,a driving mechanism, straightening die, a pull rod and a connecting rod mechanism. The straightening die is fixed to the rack, the pull rod penetrates an inner cavity of the straightening die and is fixedly connected to the draw ring of the derailing valve through the connecting mechanism, the driving mechanism is used for driving the draw ring to pull the draw ring of the derailing valve to the straightening cavity of the straightening die, and a reversing block is also arranged on the connecting mechanism and can be matched with a reversing slot in the straightening die to straighten a pin hole in the draw ring of the derailing valve to a correct position. The cold-drawing straightening device for the draw ring of the derailing valve provided by the invention can straighten the draw ringof the derailing valve to a correct shape efficiently and rapidly and meanwhile, the pin hole in the end part of a side rod can be also straightened to the correct position, so that the straighteneddraw ring of the derailing valve can be used normally.
Description
technical field [0001] The invention belongs to the technical field of railway wagon maintenance, and more specifically relates to a cold-drawing correction device for a pull ring of a derailment valve. Background technique [0002] The derailment automatic braking device is an important safety device on a railway freight car. It can automatically trigger the braking system when the vehicle derails, causing the train to produce emergency braking, thereby avoiding the expansion of derailment accidents. The pull ring of the derailment valve is an important part of the derailment automatic braking device. Its function is to sense the relative displacement between the car body and the bogie after the vehicle is derailed, and transmit the force to the valve body through mechanical transmission, causing the valve body to move so that The brake main air duct is connected to the atmosphere to generate emergency braking. [0003] The pull ring of the derailment valve is a U-shaped p...
Claims
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IPC IPC(8): B21D3/14B21D53/16
CPCB21D3/14B21D53/16
Inventor 于国芳景朝吕华王艳霞李大伟孙瑞林许秀峰
Owner CRRC SHIJIAZHUANG CO LTD