Coupler knuckle push iron, railway vehicle coupler and railway vehicle

Abstract

The invention provides a piece of coupler knuckle push iron, a railway vehicle coupler and a railway vehicle. The piece of coupler knuckle push iron comprises a push iron pin shaft arranged in the perpendicular direction and used for being hinged to a coupler body, wherein a leg kicking portion and a locking base are respectively and fixedly arranged on the push iron pin shaft, the leg kicking portion is used for driving a coupler knuckle to horizontally rotate, and the locking base is matched with a piece of locking iron. The distance between the lower surface of the leg kicking portion and the lower surface of the locking base is a first distance. According to the piece of coupler knuckle push iron, when the push iron pin shaft rotates, in a vehicle coupler body of the piece of the coupler knuckle push iron, the horizontal rotating area of the leg kicking portion is arranged above the top face of a lower traction table, therefore, the strength of the coupler body can be improved by increasing the extending length of the lower traction table of the coupler body, the aim of optimizing the layout in the coupler body is achieved, meanwhile, the possibility that the lower traction table of the coupler body is cracked even broken is reduced, and the safety of operation of the railway vehicle is improved.

Description

technical field [0001] The invention relates to the manufacturing technology of railway vehicles, in particular to a coupler tongue push iron, a railway vehicle coupler and a railway vehicle. Background technique [0002] The coupler is an important part of the coupler buffer device. Its function is to realize the connection between the railway locomotive and the carriage or between the carriage and the carriage, transmit the traction force and the impact force, and keep a certain distance between the two adjacent carriages. [0003] figure 1 is a structural schematic diagram of the prior art coupler in the main viewing direction, figure 2 yes figure 1 Middle A-A sectional view, image 3 is a perspective view of a knuckle in a prior art coupler, Figure 4 It is a three-dimensional view of the knuckle pushing iron in the coupler of the prior art, Figure 5 It is a schematic diagram of the transmission relationship between the knuckle pushing iron and the knuckle in the ...

AI Technical Summary

Problems solved by technology

[0005] Figure 7 Yes figure 2 Schematic diagram of removing the knuckle and knuckle pushing iron in ; figure 2 , Figure 4 and Figure 7 As shown, since the kicking leg portion 31 and the lock seat portion 32 of the knuckle push iron 3 in the prior art are coplanar, the horizontal rotation area of ​​the kick leg portion 31 and the lock seat portion 32 occupies the inner space of the hook body 1. Most of the space at the bottom of the cavity, and the lower traction platform 104 of the hook body 1 is formed on the bottom surface of the cavity in the hook body 1. Under such a layout, the extension length of the lower traction platform 104 along the horizontal direction must be strictly limited (such as Image 6 As shown, the extension length of the traction platform 104 is very short), so as to ensure that the lower traction platform 104 will not interfere with the rotation of the kicking part 31, and then the function of opening and locking of the knuckle 2 can be realized. However, the lower traction platform The limited extension length in the horizontal direction will directly lead to insufficient strength of the coupler body, making cracks easily appear at the lower traction table after the train has been running for a period of time, which increases the safety hazards during the operation of railway vehicles

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