CN201841904U

CN201841904U - Grade 2 coupling extension device for road-railway vehicle

Info

Publication number: CN201841904U
Application number: CN201020607019XU
Authority: CN
Inventors: 郁文心; 安海亮; 李华
Original assignee: CSR Sifang Locomotive and Rolling Stock Co Ltd
Current assignee: CRRC Sifang Co Ltd
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-05-25
Anticipated expiration: 2020-11-04

Abstract

The utility model provides a Grade 2 coupling extension device for a road-railway vehicle, which can solve the problem of the prior art that when Grade 2 couplings are used on the road-railway vehicle for connection of the compartment and the vehicle running on a small-radius curved track, the vehicle body can easily run off the track since the Grade 2 couplings are relatively short. The Grade 2 coupling extension device for the road-railway vehicle is applied for lengthening connection of the compartment connected by the Grade 2 couplings, and comprises a traction coupling rod and two centering springs, the front end of the traction coupling rod is fixedly connected with the heads of the Grade 2 couplings, the rear end of the traction coupling rod is hinged with a coupling seat on the end plate of the compartment of the road-railway vehicle; and one ends of the two centering springs are respectively connected with the traction coupling rod, and the other ends of the two centering springs are respectively connected with the end plates of the compartment of the road-railway vehicle. The extension device can indirectly increase the length of the couplings, greatly reduce the risk that the vehicle body can run off the track since the short couplings can not swing in place when the road-railway vehicle runs on the small-radius (less than or equal to 130m) curved track, and ensure the safety running of the vehicle body.

Description

Automobile-used No. 2 hitches of public iron add growth device

Technical field

The utility model relates to the rail-road car technical field, specifically, relates to automobile-used No. 2 hitches of a kind of public iron and adds growth device.

Background technology

Hitch is to be used for realizing that the company between locomotive and vehicle or vehicle and the vehicle hangs, transmitting tractive power and impulsive force, and make the vehicle part that keeps certain distance between the vehicle.Hitch has multiple, as No. 2 hitches, No. 3 hitches, tightlock coupler, 200 kilometers hitches, ear of maize hook etc., wherein, No. 2 the hitch volume is little, easy for installation, be used for company's extension that rail-road car (being called for short public iron car) is gone up the compartment in a large number, yet because the shorter amplitude of fluctuation of coupler body of No. 2 hitches is limited, car body by minor radius (≤130m) cause during curve track the hitch swing not in place, the danger of car body derailing takes place easily.

Summary of the invention

The utility model provides automobile-used No. 2 hitches of a kind of public iron to add growth device, can solve No. 2 hitches that prior art exists and be used on the public iron car compartment and connect and hang, the problem that car body derails easily takes place because No. 2 coupler hook bodies are short when car body during by the sharp radius curve track.

For reaching the purpose that solves the problems of the technologies described above, the utility model is achieved by the following technical solutions:

Automobile-used No. 2 hitches of a kind of public iron add growth device, lengthening when being used for No. 2 hitches and connecting the trailer railway carriage or compartment connects, comprise traction shank and two centralizing springs that are oppositely arranged on described traction shank left and right side, the gib head of the front end of described traction shank and described No. 2 hitches is connected, and the coupler seat on the compartment end plate of rear end and described public iron car is hinged; One end of described two centralizing springs all connects described traction shank, and the other end all connects the compartment end plate of described public iron car.

Further, described traction shank is the box-structure that front end is opened, and the gib head of described No. 2 hitches is plugged in the casing of described traction shank by the front end place of opening, and is connected with the fixed traction pin.

Again further, the front end casing of described traction shank is provided with the trimming screw in gap between the casing of the gib head that is used to adjust described No. 2 hitches and described traction shank.

Compared with prior art, advantage of the present utility model and good effect are:

When 1, hanging in the company that No. 2 hitches are used for public iron car compartment, adopt the utility model to add that growth device links to each other with No. 2 hitches and then company hangs on the compartment end plate, increased the coupler body length of hitch indirectly, greatly reduce public iron car by minor radius (≤130m) during curve track because the short swing of coupler hook body is not in place and the tendency of car body derailing easily takes place, guarantee the safe in operation of car body.

2, the utility model lengthening apparatus structure is simple, and integral body can adopt the steel plate welding, and manufacture craft is easy, and is reliability and durability.

Description of drawings

Fig. 1 adds the front view of the in running order embodiment of growth device for automobile-used No. 2 hitches of the public iron of the utility model;

Fig. 2 is the birds-eye view of Fig. 1;

Fig. 3 is the front view of traction shank among the utility model embodiment;

Fig. 4 is the birds-eye view of Fig. 3;

Wherein: 1, traction shank; 11, connecting bore; 2, No. 2 hitches; 21, gib head; 3, centralizing spring; 4, compartment end plate; 5, coupler seat; 6, fixed traction pin; 7, hangers; 8, trimming screw.

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

As depicted in figs. 1 and 2, automobile-used No. 2 hitches of the public iron of present embodiment add growth device, the length of lengthening hitch when being used for No. 2 hitches 2 and connecting the trailer railway carriage or compartment, comprise traction shank 1 and be oppositely arranged on two centralizing springs 3 that draw shank 1 left and right side, the front end of traction shank 1 and the gib head 21 of No. 2 hitches 2 are connected, and the coupler seat 5 on the compartment end plate 4 of rear end and public iron car is hinged; One end of two centralizing springs 3 all connects traction shank 1, and the other end all connects the compartment end plate 4 of public iron car.

Particularly, orientation in the present embodiment is the travel direction definition of public relatively iron car, the hook of No. 2 hitches 2 is stuck on the compartment end plate in front end compartment, the front end of traction shank 1 can be connected by the fastening mode of pin or screw and the gib head 21 of No. 2 hitches 2, certainly can adopt other mode that is connected, present embodiment does not limit this yet.Traction shank 1 rear end and coupler seat 5 hinged adopts hinge to be connected or mode such as pin connection, for cutting down finished cost, guarantee on the basis of not changing coupler seat 5 structures on the compartment end plate 4, the rear end of traction shank 1 can be hinged with coupler seat 5 couplings, hinged place, the rear end structure of traction shank 1 is consistent with gib head 21 structures of No. 2 hitches 2, has connecting bore 11, also has mounting hole on the coupler seat 5 simultaneously, it is hinged that the connecting bore 11 that adopts fixed traction pin 6 to pass mounting hole on the coupler seat 5 and traction shank 1 rear end realizes that traction shanks 1 rear end can be with coupler seat 5, simple in structure, easy for installation.In addition, position at the close compartment, the left and right sides of traction shank 1 end plate 4 is equipped with hangers 7, on the relevant position of compartment end plate 4, also be provided with simultaneously hangers 7, have hanging hole on the hangers 7, the two ends of centralizing spring 3 are hung on the described hanging hole, be in the pretension state, can make No. 2 hitches 2 be in the midway location of public iron car, prevent that No. 2 hitch 2 left and right sides wide swings from bringing potential safety hazard at non-traction state.

Based on technique scheme, optionally, for ease of processing and fabricating and make the gib head 21 of No. 2 hitches 2 firmly be connected in the front end place of traction shank 1, traction shank 1 is a box-structure, its front opening is communicated with box house, the gib head 21 of No. 2 hitches 2 is plugged in the casing of traction shank 1 by the front end place of opening, and fastening with fixed traction pin 6.The box-structure of traction shank 1 can be welded by steel plate, the mechanical strength height, and processing and fabricating is convenient.

When inserting in the casing that draws shanks 1 for reaching elimination gib head 21, gap between gib head 21 and the wall box, prevent that present embodiment from adding growth device and No. 2 hitches 2 are connected back bumpy motion in distraction procedure, the be connected position of gib head 21 of the casing front end of traction shank 1 is equipped with trimming screw 8.Thus, gap by sidewall around the casing of precession or back-out trimming screw 8 adjustment gib heads 21 and traction shank 1, make the axis on the lateral length direction of gib head 21 and traction shank 1 keep overlapping, thereby prevented effectively because of the two axis in-line big problems of motor fluctuation of causing the center-of-gravity position difference to be easy to generate not.

The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.

Claims

1. automobile-used No. 2 hitches of public iron add growth device, lengthening when being used for No. 2 hitches and connecting the trailer railway carriage or compartment connects, it is characterized in that: comprise traction shank and two centralizing springs that are oppositely arranged on described traction shank left and right side, the gib head of the front end of described traction shank and described No. 2 hitches is connected, and the coupler seat on the compartment end plate of rear end and described public iron car is hinged; One end of described two centralizing springs all connects described traction shank, and the other end all connects the compartment end plate of described public iron car.

2. No. 2 hitches according to claim 1 add growth device, it is characterized in that: described traction shank is the box-structure that front end is opened, the gib head of described No. 2 hitches is plugged in the casing of described traction shank by the front end place of opening, and is connected with the fixed traction pin.

3. No. 2 hitches according to claim 2 add growth device, it is characterized in that: the front end casing of described traction shank is provided with the trimming screw in gap between the casing of the gib head that is used to adjust described No. 2 hitches and described traction shank.