CN1907781A - Special chain car coupler for double system car coupler - Google Patents

Abstract

The invention relates to a special chain hook of dual-system hook, which is formed by two U-shaped chain ring, two connecting screw sleeves, middle drawing rod and handle, wherein the U-shaped chain rings via through hole are sliding connected to the two ends of connecting screw sleeves; the drawing rod via two end outer screws can mesh the inner screws of two connecting screw sleeves. The invention uses pin axle or screw connection, as flexible hook, to rotate around the X, Y, Z axles independently, to make the hook connect working position and non-working position. The invention has simple structure, long service life and high reliability; and the joint hook and chain hook can meet the demands that the track heights at each track are same, and meet the demands of total load as 3000t; and two U-shaped chain rings can be connected to the dual-system hook and UIC system hook.

Description

The special chain hitch that is used for double system car coupler

(1) technical field: be used for the special chain hitch of double system car coupler, belong to the goods train vehicle accessory.It and the supporting use of purpose made ' double system car coupler of railway vehicle '.Belong to rolling stock draw gear class (B61G).

(2) background technology:

It is the automatic car coupler that meets the North America AAR of railway association standard of representative and the non-automatic hitch that meets the UIC of International Union of Railways standard that European countries are representative, i.e. screw coupling that the hitch that existing rolling stock adopts roughly is divided into the U.S., Canada.Because the screw coupling complicated operation, working strength is big, and the tonnage that can draw is little, and will progressively be eliminated, but this needs a process.The rolling stock of two kinds of completely different coupler systems so just might on same railway, occur being equipped with, need to develop for this reason and can realize that two kinds of systems connect the double system car coupler of hanging, otherwise will restrict giving full play to of railway transport capacity.In order to realize hanging and the demand of safety traction 3000T load with the supporting use of purpose made ' double system car coupler of railway vehicle ' with the company of the screw coupling of the UIC system of docking vehicle, must a kind of later-model special chain hitch of design.

Adopted the draw gear that can be used for double system car coupler on some outlet rolling stocks of eighties of last century China's sixties, supportingly in this draw gear used a kind of chain hitch A, there are the following problems for this chain hitch A: 1. complex structure: it comprises two clevis eyes at two ends, and the centre also is provided with an enclosed ring.2. the enclosed ring in the middle of having easily produces dangerous contact stress, causes structural failure, influences service life.3. complex process, cost height: enclosed ring adopts and forges the back welding, and alloy steel welding difficulty is big, it is high to require, if use solid forging, then need make the solid forging mould, and cost and fabrication cycle are long.

(3) summary of the invention:

The special chain hitch that is used for double system car coupler that the present invention proposes is exactly problems such as the existing chain hitch complex structure of solution, reliability are low, complex process, and a kind of special chain hitch and the supporting use of special double system car coupler of optimization are provided.Its technical scheme is as follows:

Be used for the special chain hitch of double system car coupler, it is characterized in that

Two ends are established U type chain link 1 and 6, the two U type chain links hole 1.1 by open end respectively and are connected swivel nut two end axles 2.1 and 5.1 socket bearing fits respectively with two with 6.1; The centre is provided with the pull bar 3 of double-threaded screw, and the screw negative thread that is connected swivel nut 2 and 5 by double end outside thread 3.1 and 3.6 with two is connected with a joggle, and is connected as a single entity, and handle 4 is equipped with at the pull bar center.

Above-mentioned U type chain link 1 and 6 hitching positions 1.2 and 6.2 geomery respectively with purpose made double system car coupler and existing screw coupling hitching position in addition part match and be connected.

The above-mentioned pull bar 3 tension minimum cross section diameters that bear the tractive force gross load are 44.5mm; The tension minimum cross section of U type chain link is of a size of 2 * 40 * 40mm; The material extending surrender is limited to 1350kN.Above-mentioned primary structure member all can adopt high strength alloy steel 35CrMnSiA to make.

Beneficial effect of the present invention:

I. therefore this patent be flexible hitch by bearing pin or be threaded, can be respectively around X, Y, the rotation of Z axle, connect the mobile rotation demand that working position and Fei Lian extension are treated working position of hanging to realize hitch.As: U type chain link can be around connecting swivel nut two end axles (being Y-axis) rotation, to satisfy the non-demand that folds when extension is treated working position that connects.Ii. when turning handle (promptly rotating around X-axis), two connect swivel nut inwardly or outwards vertically moves simultaneously, realizes locking and the function of unclamping the chain hitch.Iii.U type chain link 6 hitching position shapes, size match with the screw coupling gib head, realize hanging with the company of UIC system hitch.Iv. this patent design-calculated bears plane of weakness structure, shape and size and the material yield limit of gross load, all satisfies the requirement of bearing traction 3000T.V. this patent is simple in structure, only needs just to finish repertoire with two U type chain links.Both cancelled middle enclosed ring, and gib head and attaching parts need be set again, the dangerous contact stress of having avoided these members to produce thus causes structural damage, thereby improves greatly structural reliability and service life.(the chain hitch when being subjected to tensile load, chain link removes the tension stress influence, also is subjected to directly contacting with chain link and the influence of the relative minimum contact stress of area, and contact stress is excessive and tensile stress not quite also can cause structural damage.) vi. has cancelled enclosed ring that technology is simplified greatly, manufacturing cost descends.(enclosed ring welds after adopting forging,, requirement height big to alloy steel products matter welding difficulty; As adopt solid forging, then need make the solid forging mould, cost and fabrication cycle are long).Vii. determine by this patent design-calculated structure, size, material, it and the supporting use of purpose made double system car coupler, the coupler centre line of its two kinds of systems all can be consistent everywhere apart from railway rail level height.

(4) description of drawings:

Fig. 1 front elevation of the present invention

Fig. 2 birds-eye view of the present invention

Fig. 3 Figure 1A-A cutaway view

Fig. 4 U type chain link 6 with dock vehicle screw coupling gib head connection diagram

Site plan is hung by the non-company of Fig. 5 the present invention in ' double system car coupler '

Site plan is hung by the company of Fig. 6 the present invention in ' double system car coupler '

(5) specific embodiment:

See Fig. 1, see Fig. 2, Fig. 3, this patent embodiment by two U type chain links 1 and 6, be connected swivel nut 2 and 5, pull bar 3, handle 4 etc. and form.U type chain link 1 open end have two holes 1.1 respectively be connected swivel nut 2 two end axles 2.1 socket bearing fits; U type chain link 6 open ends have two holes 6.1 respectively be connected swivel nut 5 two end axles 5.1 socket bearing fits.There is the pull bar 3 of double-threaded screw at two ends, and the negative thread 2.2 or 5.2 that is connected swivel nut 2 and 5 by two ends outside thread 3.1 and 3.6 respectively with two is connected with a joggle.Handle 4 is contained in the pull bar middle part, when turning handle rotates (promptly rotating around X-axis) around the pull bar axle center, is meshed by internal and external threads, and drive two and connect swivel nuts inside or outside longitudinal movement simultaneously, thus the function that realization is locked or unclamped the chain hitch.Do not throwing off situation, longitudinally the L extreme length is 910mm, L minimum length 738mm.

See Fig. 1, it is 44.5mm that pull bar 3 bears gross load minimum cross section diameter, at 3.2 places, pull bar center.U type chain link 1 or 6 bears traction gross load pulling force minimum cross section and is of a size of 2 * b * h=2 * 40 * 40mm, material tension yield 1350kN.Above-mentioned primary structure member U type chain link, connection swivel nut, pull bar all can adopt high strength alloy steel 35CrMnSiA to make.Realize the requirement of this patent safety traction 3000T gross load with this.

See Fig. 4, the U type chain link 6 and the connection structure of docking the vehicle screw coupling of this patent chain hitch:

In the groove 7.1 that the geomery that the articulated end 6.2 of U type chain link 6 non-open ends inserts screw coupling gib head 7 is complementary, turning handle 4, locking chain hitch can be realized the function of hanging and drawing the truck vehicle of another system with the company of UIC system screw hitch.The company that need to adopt the standard side buffer device of UIC system configuration to carry out vehicle this moment worries and draws operation.

See that Fig. 5, Fig. 6 are this patent and ' double system car coupler of railway vehicle ' supporting condition of service.This patent special chain hitch mark 10, the joint gib head in ' double system car coupler of railway vehicle ' is 11, coupler body is 12.

See Fig. 5, when joint gib head 11 rotates in the longitudinal traction direction by the turning joint in the double system car coupler, and dock vehicle automatic car coupler 11 ¹Automatically articulate.And this patent special chain hitch 10 horizontally rotates and (rotates about 80 ° around the Z axle, be in the non-extension that connects and treat control position, U type chain link 6 all can make whole special chain hitch be in folding or the following control position for the treatment of that hangs state around being connected swivel nut two end axles 2.1 and 5.1 rotations (rotating around Y-axis) with 1 at this moment.

See Fig. 6, special chain hitch 10 horizontally rotates in longitudinal traction direction (around the rotation of Z axle) by the turning joint in the double system car coupler.Chain hitch 10 full expands articulate the screw coupling of what UIC system by the structure of Fig. 4 by U type chain link 6.When turning handle 4 (promptly rotating around X-axis), two connect swivel nut inwardly or outwards vertically moves simultaneously, realizes locking and the function of unclamping the chain hitch.

Claims (4)

1. be used for the special chain hitch of double system car coupler, it is characterized in that

Two ends are established U type chain link (1) and (6) respectively, and two U type chain links are connected swivel nut (2) and (5) two end axles (2.1) and (5.1) socket bearing fit by the hole (1.1) of open end respectively with (6.1) with two; The centre is provided with the pull bar (3) of double-threaded screw, and the double end outside thread (3.1) by two ends is connected with a joggle with (3.6) are connected swivel nut (2) and (5) with two screw negative thread, is connected as a single entity, and handle (4) is equipped with at the pull bar center.

2. by the described chain hitch of claim 1, the geomery that it is characterized in that U type chain link (1) and (6) hitching position (1.2) and (6.2) matches with purpose made double system car coupler and other part of existing screw coupling hitching position respectively and is connected.

3. by the described chain hitch of claim 1, pull bar (3) tension minimum cross section (3.2) diameter that it is characterized in that bearing the tractive force gross load is 44.5mm; The tension minimum cross section of U type chain link is of a size of 2 * 40 * 40mm, and the material extending surrender is limited to 1350Kn.

4. by the described chain hitch of claim 1, it is characterized in that U type chain link, connect swivel nut and pull bar employing high strength alloy steel 35CrMnSiA manufacturing.

Images