CN101962024B - Vehicle coupler capable of preventing automatic locking - Google Patents

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

A kind of hitch that prevents coupler lock

Technical field

The hump that the present invention relates to the scheduling of a kind of goods train vehicle slips and prevents that train from connecting the hitch of coupler lock when hanging in the car operating process.

Background technology

Hitch is that railway truck connects the key components and parts of hanging part; Newly make at present the hitch that lorry assembled of lorry and circuit operation; As illustrated in fig. 1 and 2, mainly comprise coupler body 1, hook tongue 2 and knuckle pivot pin 3, its knuckle pivot pin 3 relative coupler bodies 1, hook tongue 2 only overcome friction promptly can rotate; And hook tongue 2 is being unblanked, when locking is turned round, also only need overcome the friction force between hook tongue 2 and each part around knuckle pivot pin 3.

In practical operation, the Freight Transport management is accompanied by marshalling, the despatching work of a large amount of vehicles usually.And in the vehicle scheduling process, when hump slips the car operation, need be in full-gear by skating vehicle rear end hitch, and could realize the continuous slide car operation of vehicle like this, accomplish the despatching work of vehicle.Yet when most of car speed surpassed 4km/h, in the time of this vehicle and the place ahead train company extension, its rear end hitch was under the moment impact effect; The torque that this speed produces momentum formation has exceeded the friction moment sum between hook tongue and each part, thereby has broken the moment balance of hook tongue around knuckle pivot pin, so that back end hook tongue rotates; Make hitch generation coupler lock; As shown in Figure 3, rear end hitch coupler lock appears during for coupling of vehicles, cause the scheme drawing that can not realize connecting once more extension.Like this; Because after skating vehicle is even hung and is incorporated next train into, because of its rear end hitch generation coupler lock, if rolling realizes connecting extension once more; Just must come and go the hitch that coupler lock will take place and open to the standard-sized sheet position by operating personal; Thereby make troubles to shunting service, cause Shunting Service Efficiency lower, be unfavorable for improving the Freight Transport management work.

Summary of the invention

Goal of the invention of the present invention is: to the problem of above-mentioned existence, provide a kind of in the railway truck scheduling operation, can prevent effectively that being surpassed 4km/h by skating vehicle speed connects when hanging, and the hitch of coupler lock phenomenon takes place.

Technical scheme of the present invention is achieved in that a kind of hitch that prevents coupler lock; Comprise coupler body, hook tongue and knuckle pivot pin; Said hook tongue is hinged through knuckle pivot pin and coupler body in the knuckle pivot pin hole that is arranged at coupler body; It is characterized in that: in the inner chamber of said hook tongue, be provided with elastomeric element, said knuckle pivot pin leans on the coupler body relative fixed, processes two planar sections at the curved surfaces of said knuckle pivot pin; Between said two planar sections, form the transition phase of protrusion relatively; The head of said elastomeric element is fitting tightly with said planar section to hook tongue S face bending back, its afterbody and hook tongue relative fixed, and the break place of the head of said elastomeric element and center supports through the convexity in the hook tongue inner chamber.

The hitch that prevents coupler lock of the present invention, it is provided with position plate in said knuckle pivot pin end, and said position plate leans on coupler body directed.

The hitch that prevents coupler lock of the present invention, its said two planar sections are arranged on the middle part of knuckle pivot pin.

The hitch that prevents coupler lock of the present invention; Its in the inner chamber of said hook tongue, elastomeric element middle part leans on the linkage section corresponding position of afterbody to be provided with detent, the middle part of said elastomeric element leans on the linkage section of afterbody for leaning on the convex of said detent coupling.

The hitch that prevents coupler lock of the present invention, the afterbody of its said elastomeric element is curved, and the segmental arc of said afterbody is connected to the opening part of the hook tongue bottom of the coupling of leaning on.

The hitch that prevents coupler lock of the present invention, its said elastomeric element is a laminated spring, said laminated spring thickness is 1.5mm～4.5mm.

The hitch that prevents coupler lock of the present invention, its said laminated spring is 1mm～8mm in the deformation of the squeezing action head portion generation of knuckle pivot pin.

The present invention with respect to the beneficial effect of prior art is: the present invention is guaranteeing on the not affected basis of three action functions that existing hitch is formed; Through in the hook tongue, elastomeric element being set; Simultaneously the structure of knuckle pivot pin is improved; At elastomeric element and under the cooperation of the knuckle pivot pin after improving; Effectively having increased hitch and become the needed external force of blocking from full-gear, promptly is to have improved skating vehicle rear end hitch when even hanging, the needed skating vehicle speed of coupler lock to take place, and has improved 1.5km/h at least on the original basis; Greatly reduce the coupler lock phenomenon that the impact when the rear end hitch is hung because of connecting in the operation of slide car causes the hook tongue to rotate; Avoid the frequent long distance of professional operating personal to come and go opening the hitch of coupler lock, thereby improved the efficient of Freight Transport management relevant work greatly, met China Railway Freight career development demand.And the cost of structure that the present invention increases is lower, and the improvement of knuckle pivot pin and supporting new system spring cost are about 500 yuan, and new system hitch, circuit operation hitch all are prone to realize improving; And the hitch after improving, on original 232.5 kilograms basis, its weight increases less than millesimal.

Description of drawings

Fig. 1 and Fig. 2 are the structural representations of existing hitch.

Fig. 3 is the hump slide car operating process of goods train vehicle scheduling.

Fig. 4 is the structural representation of hitch of the present invention under full-gear.

Fig. 5 is the structural representation of hitch of the present invention under blocking.

Fig. 6 is the structural representation of knuckle pivot pin among the present invention.

Fig. 7 is the right elevation of Fig. 5.

Fig. 8 is an A-A section-drawing among Fig. 5.

Fig. 9 is the structural representation of laminated spring among the present invention.

Mark among the figure: 1 is coupler body, and 2 is the hook tongue, and 3 is knuckle pivot pin, and 4 is the knuckle pivot pin hole, and 5 is elastomeric element; 5a is the head of elastomeric element, and 5b is the middle part of elastomeric element, and 5c is the afterbody of elastomeric element, and 5d is the linkage section that afterbody is leaned at the elastomeric element middle part, and 6 is planar section; 7 is transition phase, and 8 is hook tongue S face, and 9 is break, and 10 is the convexity that supports break in the hook tongue inner chamber; 11 is position plate, and 12 is detent, and 13 is the bayonet socket of hook tongue bottom, and 14 is coupler knuckle pin hole.

The specific embodiment

Below in conjunction with accompanying drawing, the present invention is done detailed explanation.

In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

Shown in Fig. 4 to 9; A kind of hitch that prevents coupler lock; Comprise coupler body 1, hook tongue 2 and knuckle pivot pin 3, said hook tongue 2 leans on coupler body 1 hinged through the knuckle pivot pin in the knuckle pivot pin hole 4 that is arranged at coupler body 13, in the inner chamber of said hook tongue 2, is provided with elastomeric element 5; Said elastomeric element 5 is a laminated spring, and its thickness is 1.5mm～4.5mm; Be connected with a position plate 11 in said knuckle pivot pin 3 top flange stationkeeping, after knuckle pivot pin 3 inserted in the knuckle pivot pin hole 4, said position plate 11 leaned on coupler body 1 orientation, and knuckle pivot pin 3 leans on coupler body 1 relative fixed like this, rotates with the relative coupler body of restriction knuckle pivot pin; Curved surfaces middle part at said knuckle pivot pin 3 processes two planar sections 6; Between said two planar sections 6, form the transition phase 7 of protrusion relatively, the head 5a of said laminated spring is leaning on said planar section 6 to fit tightly work in-process to hook tongue S face 8 bending backs; Stretch into knuckle pivot pin hole 4 with a lever from coupler body 1 downside coupler knuckle pin hole 14; Overcome laminated spring head elastic force through lever and exert pressure, will extend knuckle pivot pin bore portion laminated spring head and press to hook tongue S face one side, and abdicate the assembling knuckle pivot pin need the space; The knuckle pivot pin that will be processed with two planar sections simultaneously inserts, and takes out lever; The afterbody 5c of said laminated spring is curved; The segmental arc of said afterbody 5c is connected to bayonet socket 13 places of hook tongue 2 bottoms of the coupling of leaning on; Thereby make the laminated spring afterbody lean on hook tongue 2 relative fixed; The head 5a of said laminated spring leans on break 9 places of center 5b to support through the convexity in hook tongue 2 inner chambers 10, and the deformation that said laminated spring produces under the squeezing action of knuckle pivot pin 3 is 1mm～8mm.

Wherein, In the inner chamber of said hook tongue 2, laminated spring middle part 5b leans on the linkage section 5d corresponding position of afterbody 5c to be provided with detent 12; The middle part 5b of said laminated spring leans on the convex of linkage section 5d for leaning on said detent 12 to mate of afterbody 5c, thereby the laminated spring in the hook tongue inner chamber is played positioning action.

Principle of work of the present invention: as shown in Figure 4, hitch is in full-gear at this moment, and the head of laminated spring leans on a planar section on the knuckle pivot pin to fit tightly, and this moment, laminated spring was less to the elastic force of knuckle pivot pin.

When being hung in company by skating vehicle, its rear end hitch is under the moment impact effect, and the hook tongue has produced the moment of inertia of rotating around knuckle pivot pin; This moment the hook tongue by full-gear in the blocking rotating process because laminated spring leans on hook tongue relative fixed, rotate around knuckle pivot pin so laminated spring can be followed the hook tongue; When the laminated spring head when knuckle pivot pin rotates; The head of laminated spring begins through the transition phase on the knuckle pivot pin because transition phase protrude with respect to planar section, when the laminated spring head when passing through this transition phase; This salient branch produces the power that compresses to hook tongue S face direction to the laminated spring head; Simultaneously in addition hook tongue inner chamber protrusions part to the supporting role at laminated spring break place, thereby the elastic force that makes the laminated spring in the hook tongue inner chamber lean on knuckle pivot pin to take place increases, thereby produced a resistance that prevention hook tongue rotates around knuckle pivot pin; When the hook tongue turned to midway location, laminated spring was maximum to the elastic force of knuckle pivot pin.Like this; When unblank, when block action impels the hook tongue to rotate; Increased the damping that elastic force brings on the original basis; The phenomenon of hitch coupler lock takes place when then effectively having avoided lorry to slip the car operation in the shock damping action that this elastic force brings, thereby improved the shunt purpose of work efficiency of rolling stock greatly.

The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. hitch that can prevent coupler lock; Comprise coupler body (1), hook tongue (2) and knuckle pivot pin (3); Said hook tongue (2) is hinged through knuckle pivot pin (3) in the knuckle pivot pin hole (4) that is arranged at coupler body (1) and coupler body (1); It is characterized in that: in the inner chamber of said hook tongue (2), be provided with elastomeric element (5); Said knuckle pivot pin (3) and coupler body (1) relative fixed; Curved surfaces at said knuckle pivot pin (3) processes two planar sections (6), between said two planar sections (6), forms the transition phase (7) of protrusion relatively, and the head (5a) of said elastomeric element (5) is fitting tightly with said planar section (6) to hook tongue S face (8) bending back; Its afterbody (5c) and hook tongue (2) relative fixed, the head (5a) of said elastomeric element (5) is located to support through the convexity (10) in hook tongue (2) inner chamber with the break (9) of center (5b).

2. the hitch that prevents coupler lock according to claim 1 is characterized in that: be provided with position plate (11) in said knuckle pivot pin (3) end, said position plate (11) leans on coupler body (1) orientation.

3. the hitch that prevents coupler lock according to claim 1 is characterized in that: said two planar sections (6) are arranged on the middle part of knuckle pivot pin (3).

4. according to claim 1 or the 2 or 3 described hitches that prevent coupler lock; It is characterized in that: in the inner chamber of said hook tongue (2), elastomeric element (5) middle part (5b) be provided with detent (12) with linkage section (5d) corresponding position of afterbody (5c), the middle part (5b) of said elastomeric element (5) be the convex of mating with said detent (12) with the linkage section (5d) of afterbody (5c).

5. the hitch that prevents coupler lock according to claim 4 is characterized in that: the afterbody (5c) of said elastomeric element (5) is curved, and the segmental arc of said afterbody (5c) is connected to the bayonet socket (13) of hook tongue (2) bottom that matches and locates.

6. the hitch that prevents coupler lock according to claim 5 is characterized in that: said elastomeric element (5) is a laminated spring, and said laminated spring thickness is 1.5mm～4.5mm.

7. the hitch that prevents coupler lock according to claim 6 is characterized in that: said laminated spring is 1mm～8mm in the deformation of the squeezing action head portion generation of knuckle pivot pin (3).