CN203727406U

CN203727406U - Railway vehicle coupler with function of preventing shedding of coupler knuckle pin

Info

Publication number: CN203727406U
Application number: CN201420091630.XU
Authority: CN
Inventors: 徐强; 丁学清; 李大军; 周瑞; 杜延强; 刘照卫; 张文; 何国金; 宋英玲; 曹宏宇; 张宗海; 夏传钢; 张俭福
Original assignee: Jinan Iron and Steel Group Co Ltd
Current assignee: Jinan Iron and Steel Group Co Ltd
Priority date: 2014-02-28
Filing date: 2014-02-28
Publication date: 2014-07-23
Anticipated expiration: 2024-02-28

Abstract

A railway vehicle coupler with a function of preventing shedding of a coupler knuckle pin comprises a coupler head, a coupler body and a coupler tail. A coupler knuckle, a coupler knuckle pin, a coupler lift pin, a coupler knuckle push iron and a coupler lock iron are disposed in the coupler head. A split pin is connected to the bottom end of the coupler knuckle pin. The railway vehicle coupler is characterized by further comprises a locking chain; one end of the locking chain is fixedly connected with the bottom of the coupler head; the other end of the locking chain is connected with the ring end of the split pin; loose allowance of the locking chain is 10-20mm. The coupler knuckle pin of the coupler can have due functions after breakage, a spot inspector can easily found a potential hazard during spot inspection, the coupler knuckle pin can be changed in time accordingly, and major accidents are avoided.

Description

A kind of coupler of railway car that prevents that knuckle pivot pin from coming off

Technical field

The utility model relates to the hitch technology of railway vehicle, specifically can prevent the hitch that knuckle pivot pin comes off.

Background technology

In railway transportation, hitch is to hang for realizing company between locomotive and vehicle or vehicle and vehicle, transmitting tractive power and impulsive force, and make to keep between vehicle the vehicle part of certain distance.

Conventional a kind of hitch is by gib head at present, and hook body, three parts of hook tail form.The thick part of hitch front end is called gib head, and hook tongue, knuckle pivot pin are housed in gib head, and hook is carried pin, and hook tongue pushes away iron and coupler knuckle lock.Hitch rear portion is called hook tail, has vertical flat lockhole on hook tail, to connect with hook tail frame.In order to realize hook or decoupling device, vehicle is connected or separate, hitch has following three kinds of positions, namely hitch tri-state:

Locked position---as shown in Figure 1, the hook tongue of hitch is blocked the outwards position of turn-off by coupler knuckle lock, two coupling of vehicles together time hitch be just in this position;

Lockset position of coupler---as shown in Figure 2, coupler knuckle lock is raised, and as long as hook tongue is the just outside position of turn-off of under tension; When decoupling device, as long as one of them hitch is in lockset position of coupler, just two cars together with hanging over can be separated;

Full open position of coupler---as shown in Figure 3, i.e. the position of completely outside turn-off of hook tongue.In the time that two cars need to even be hung, as long as one of them hitch is in full open position of coupler, after colliding with another hitch, just can even hang.

In the time of railway transportation, grouping operation due to impact and the quality of knuckle pivot pin own and the tired operation of hanging job, often cause knuckle pivot pin fracture, because vehicle operating quantity is large, feature wide, dynamic operation distributes, cause spot check personnel to find in the very first time, very easily cause vehicle driving accident, so be badly in need of a kind of hitch of invention, realize after knuckle pivot pin fracture and can also play itself due effect, can facilitate again the operation of spot check personnel spot check to scent a hidden danger, accomplish to change in time knuckle pivot pin, avoid the generation of grave accident.

Utility model content

The shortcoming existing in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of coupler of railway car that prevents that knuckle pivot pin from coming off, after the knuckle pivot pin fracture of this hitch, can also play itself due effect, and be very easy to find hidden danger when the operation of spot check personnel spot check, thereby accomplish to change in time knuckle pivot pin, avoid the generation of grave accident.

In order to address the above problem, the utility model by the following technical solutions: a kind of coupler of railway car that prevents that knuckle pivot pin from coming off, comprises gib head, hook body, hook tail; In described gib head, be provided with hook tongue, knuckle pivot pin, hook is carried pin, and hook tongue pushes away iron and coupler knuckle lock; The bottom of knuckle pivot pin is connected with spring cotter; It is characterized in that: also comprise an anti-fall off chain, one end of anti-fall off chain is fixedly connected with the bottom of described gib head; The other end of anti-fall off chain is connected with the annulus end of described spring cotter, and the loose surplus of described anti-fall off chain is 10-20mm.

As further technical scheme of the present utility model: the loose surplus of described anti-fall off chain can also further be preferably 15mm.

The beneficial effects of the utility model are: after the fracture of the knuckle pivot pin of this kind of hitch, can also play itself due effect, and be very easy to find hidden danger when the operation of spot check personnel spot check, thereby accomplish to change in time knuckle pivot pin, avoid the generation of grave accident.

Brief description of the drawings

Below in conjunction with drawings and Examples, the utility model is described further:

Fig. 1 is the structural representation of coupler of railway car in the time of locked position in prior art;

Fig. 2 is the structural representation of coupler of railway car in the time of lockset position of coupler in prior art;

Fig. 3 is the structural representation of coupler of railway car in the time of full open position of coupler in prior art;

Fig. 4 is the structural representation of the utility model embodiment;

In figure: 1 gib head, 2 hook tongues, 3 knuckle pivot pins, 4 hooks are carried pin, and 5 hook tongues push away iron, 6 coupler knuckle locks, 7 spring cotters, 71 annulus ends, 8 anti-fall off chains.

Detailed description of the invention

As shown in Figure 4, this coupler of railway car, comprises gib head 1, hook body, hook tail; In described gib head 1, be provided with hook tongue 2, knuckle pivot pin 3, hook is carried pin 4, and hook tongue pushes away iron 5 and coupler knuckle lock 6; The bottom of knuckle pivot pin 3 is connected with spring cotter 7; Its special feature is: also comprise an anti-fall off chain 8, one end of anti-fall off chain 8 is fixedly connected with (can be welding) with the bottom of described gib head 1; The other end of anti-fall off chain 8 is connected with the annulus end 71 of described spring cotter 7, and the loose surplus of described anti-fall off chain 8 is 10-20mm.Pine surplus is too little, and to the normal work limit of knuckle pivot pin 3, and loose surplus can not play too greatly the effect of anticreep.This pine surplus can also further be preferably 15mm.

Wherein said loose surplus is the technical terms of railway locomotive field specification, and concrete meaning is: chain two ends are separately fixed at two attachment points, and two attachment point chains are loose state, and now the straight-line distance between two attachment points is L1; When one or two attachment point moves when chain is straightened, the straight-line distance between two attachment points is designated as L2; The loose surplus of L2-L1=chain.Therefore loose surplus is the length that loose chain can be stretched.

In the time that the knuckle pivot pin 3 of hitch ruptures, part below knuckle pivot pin breaking part comes off downwards from knuckle pivot pin hole, and the anti-fall off chain 8 that is fixed in gib head 1 bottom draws, and unlikelyly all skids off, knuckle pivot pin 3 still can play the effect of hook tongue rotating shaft, thereby prevents hitch auto-unlocking.And due to after knuckle pivot pin 3 fracture, the part below its breaking part moves down, anti-fall off chain 8 is tauted, and is therefore very easy to find the problem at this place when the operation of spot check personnel spot check, just can change in time knuckle pivot pin, avoids the generation of grave accident.

All the other do not state all same prior aries of technology.

Claims

1. the coupler of railway car that knuckle pivot pin comes off be can prevent, gib head, hook body, hook tail comprised; In described gib head, be provided with hook tongue, knuckle pivot pin, hook is carried pin, and hook tongue pushes away iron and coupler knuckle lock; The bottom of knuckle pivot pin is connected with spring cotter; It is characterized in that: also comprise an anti-fall off chain, one end of anti-fall off chain is fixedly connected with the bottom of described gib head; The other end of anti-fall off chain is connected with the annulus end of described spring cotter, and the loose surplus of described anti-fall off chain is 10-20mm.

2. a kind of coupler of railway car that prevents that knuckle pivot pin from coming off according to claim 1, is characterized in that: the loose surplus of described anti-fall off chain is 15mm.