Vehicle coupler capable of preventing automatic locking

Abstract

The invention discloses a vehicle coupler capable of preventing automatic locking, which comprises a coupler body, a coupler knuckle and a coupler knuckle pin. The coupler knuckle is articulated with the coupler body through the coupler knuckle pin arranged in a coupler knuckle pin hole of the coupler body, an elastic component is arranged in a cavity of the coupler knuckle, and the coupler knuckle pin and the coupler body are relatively fixed. Two plane sections are processed on the curved surface of the coupler knuckle pin, and a relatively protruding transition section is formed between the two plane sections. The head part of the elastic component is tightly attached to the plane sections after being bent toward the S face of the coupler knuckle, the tail part and the coupler knuckle are relatively fixed, and the folding point between the head part and the middle part of the elastic component is supported by a protrusion in the cavity of the coupler knuckle. An external force required for changing the vehicle coupler from the full open state to a locking state is effectively increased under the premise of not influencing the use performance of the traditional vehicle coupler assembly, the automatic locking phenomenon of coupler knuckle rotation caused by impact during coupling of a back-end vehicle coupler in vehicle rolling is greatly reduced, and thus, the efficiency of railway vehicle shunting work is increased.

Description

technical field [0001] The invention relates to a coupler which prevents automatic locking when trains are connected during the hump rolling operation process of railway freight car vehicle dispatching. Background technique [0002] The coupler is a key part of the connecting part of the railway wagon. At present, the coupler assembled on the new wagon and the wagon running on the line, such as figure 1 and 2 As shown, it mainly includes a hook body 1, a knuckle tongue 2 and a knuckle pin 3. The knuckle pin 3 can rotate relative to the hook body 1 and the knuckle tongue 2 only by overcoming the friction force, and the knuckle 2 is unlocked around the knuckle pin 3. , When locking and rotating, it is only necessary to overcome the frictional force between the knuckle 2 and each part. [0003] In actual operation, truck transportation management is usually accompanied by the marshalling and dispatching of a large number of vehicles. In the process of vehicle dispatching, wh...

AI Technical Summary

Problems solved by technology

However, when the speed of most of the vehicles exceeds 4km / h, when the vehicle is connected to the front train, the rear coupler is under the instantaneous impact, and the torque generated by the speed exceeds the torque between the knuckle and each part. The sum of the frictional moments breaks the moment balance of the knuckle around the knuckle pin, so that the rear end of the knuckle rotates, so that the coupler is automatically locked, such as image 3 As shown, it is a schematic diagram of the automatic locking of the rear-end coupler when the vehicle is connected, which makes it impossible to realize the connection again

In this way, after the slipping vehicle is linked and merged into the next train, the rear-end coupler is automatically locked, if it is to be slipped again to realize the connection, the operator must go back and forth to open the automatically locked coupler to the fully open position. , thus bringing inconvenience to the shunting operation, resulting in lower shunting operation efficiency, which is not conducive to improving the management of truck transportation

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