CN115009319A - Rail transit vehicle is with linking device - Google Patents
Rail transit vehicle is with linking device Download PDFInfo
- Publication number
- CN115009319A CN115009319A CN202210757334.8A CN202210757334A CN115009319A CN 115009319 A CN115009319 A CN 115009319A CN 202210757334 A CN202210757334 A CN 202210757334A CN 115009319 A CN115009319 A CN 115009319A
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- Prior art keywords
- push
- universal
- rail transit
- connecting part
- hitch
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Links
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G7/00—Details or accessories
- B61G7/10—Mounting of the couplings on the vehicle
Abstract
A linkage device for a rail transit vehicle comprises a linkage main body, wherein one end of the linkage main body is provided with a first connecting part connected with a pulled body, and the other end of the linkage main body is provided with a second connecting part connected with the pulled body; two sides of the first connecting part are provided with outward extending push rods, and push plates used for being abutted to a pulled body are arranged on the push rods; the linkage main body is movably connected with the first connecting part. The coupling device is connected with the tractor, and the tractor moves in a traction manner, so that the carriage of the chain type coupler can move among different stations, and the defects of the traditional manual cart are overcome; and can realize the push-pull dual-purpose function according to the user's demand.
Description
Technical Field
The invention relates to a coupling device, in particular to a coupling device for a rail transit vehicle.
Background
The tractor is a transportation tool used for various rail cars, and can timely and quickly pull the unpowered or damaged vehicles on the rails away by the traction of the tractor in an intermittent and periodic working mode, and the tractor can walk on the rails and the ground to realize the traction of different types of vehicles.
The coupler on the existing tractor is basically in a 15-number coupler, a tight-lock coupler and the like, can be directly coupled with the couplers of most existing carriages, but has the following defects: the carriage of the chain type coupler of the traction equipment can not be connected, the chain type coupler can only bear pulling force, the carriage can not be used when being pushed, if the carriage can only be pulled by the tractor, when the carriage needs to run in the reverse direction, the carriage needs to be manually pushed to the other direction, for example, the tractor is in front, the carriage is behind, the existing tractor can only pull the carriage to advance along the forward direction, but can not realize advancing along the direction of the carriage, the tractor needs to be changed into one direction, time and labor are wasted, and if the carriage runs on a track, the position is difficult to exchange. Therefore, the invention needs to design a coupling device for connecting a chain type coupler carriage and a tractor, which can realize the functions of pushing and pulling the car according to the requirements of users.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the linkage device for the rail transit vehicle, which has the advantages of push-pull dual-purpose, flexible adjustment, time and labor saving and low cost.
The technical scheme of the invention is as follows: a linkage device for a rail transit vehicle comprises a linkage main body, wherein one end of the linkage main body is provided with a first connecting part connected with a pulled body, and the other end of the linkage main body is provided with a second connecting part connected with the pulled body; two sides of the first connecting part are provided with outward extending push rods, and push plates used for being abutted to a pulled body are arranged on the push rods; the linkage main body is movably connected with the first connecting part.
Furthermore, a universal mechanism and a length adjusting mechanism are arranged between the push rod and the push plate.
Furthermore, a universal nut is welded on the back of the push plate, one end of the push rod is connected with a screw rod through threads, a universal joint is arranged on the screw rod, and the universal nut and the universal joint form the universal mechanism; the length adjusting mechanism is formed between the screw and the threads of the push rod.
Further, universal joint is spherical joint, and universal nut has spherical sunken, can with the spherical joint cooperation, and the fit clearance is for being not more than 1mm between the two, can ensure universal mechanism and adjust the direction, keeps fixed direction under no exogenic action simultaneously.
Furthermore, the push rod is a piston rod, the piston rod is connected with a driving cylinder, and the driving cylinder drives the piston rod to extend and retract to form the length adjusting mechanism; the piston rod is connected with a universal mechanism.
Furthermore, a reinforcing sleeve is arranged on the push rod; and the push plate is provided with a connecting hole for fixedly connecting with the pulled body.
Furthermore, the first connecting portion is provided with a connecting plate which is arranged oppositely from top to bottom at the end connected with the linkage main body, the linkage main body extends into the space between the upper connecting plate and the lower connecting plate, and the connecting pin penetrates through the connecting plate and the linkage main body to enable the linkage main body to be rotatably connected with the first connecting portion.
Furthermore, fixed arms arranged in a mirror image mode extend outwards from two ends of the first connecting portion respectively, and one end of the push rod penetrates through the fixed arms and is fixedly connected with the fixed arms; or the two ends of the first connecting part are respectively connected with a driving cylinder, and the driving cylinder is connected with the push plate through a piston rod.
Furthermore, first connecting portion include two blocks of curb plates of relative setting, and the top surface and/or the bottom surface of curb plate are the inclined plane, are equipped with the connecting pin that is used for the hook coupling between two blocks of curb plates.
Furthermore, the thrust of the push plate is controlled to be 2-2.2 kN, so that the push rod can not be bent, and the carriage can be pushed to advance; when the length is adjusted, the diameter of the screw is not less than 30mm, the extending length of the screw is not more than 200mm, and the screw can be prevented from being broken in the range.
The invention has the beneficial effects that:
(1) when a carriage provided with a chain type coupler moves between different stations, the carriage can be connected with a tractor through the coupling device, is pulled by the tractor to move and flows between different stations, the defects of the traditional manual cart are overcome, and the push-pull dual-purpose function can be realized according to the requirements of users, so that the position between the tractor and the carriage does not need to be adjusted, and the coupling device can be used for realizing forward operation or backward operation;
(2) by arranging the universal mechanism, the angle of the push plate can be adjusted at will, so that the push plate can be ensured to be in surface contact with the carriage, the stress degree is reduced, and the carriage is prevented from bulging or upwarping in the pushing process of the push plate;
(3) by arranging the length adjusting mechanism, on one hand, the extending length of the push plate can be adjusted, and the phenomenon that the push plate cannot push the carriage or cannot press the carriage is prevented; on the other hand, the dual-purpose function of pushing and pulling can be realized by adjusting the telescopic length of the push plate;
(4) the universal nut is directly welded on the back of the push plate to replace the existing connecting block, so that the cost is reduced, and universal connection can be realized;
(5) the bottom surface of the first connecting part is an inclined surface, so that the chain type coupler can be prevented from being separated from the connecting pin due to oscillation generated by an up slope and a down slope;
(6) through setting up the antithetical couplet and hanging main part and first connecting portion swing joint, can reduce the distortion power of car when turning, guarantee to pull the body and be pulled and have sufficient degree of freedom between the body and turn.
Drawings
FIG. 1 is a schematic perspective view showing the structure of embodiment 1 of the present invention;
FIG. 2 is a front perspective view of embodiment 1 of the present invention;
fig. 3 is a schematic view of a disassembled structure of the universal nut and the ball joint according to embodiment 1 of the present invention.
The attached drawings indicate the following:
1. a rectangular connecting pipe; 2. a second connecting portion; 3. a first connection portion; 4. a push rod; 5. pushing the plate; 6. a movable connection portion; 7. a fixed arm; 8. a universal nut; 9. a ball joint; 21. a coupler mounting plate; 22. a pin-hole plate; 23. a first connecting pin; 24. a reinforcement; 31. a side plate; 32. a slope; 33. a third connecting pin; 34. a back plate; 41. a reinforcing sleeve; 51. a threaded hole; 61. a connecting plate; 62. a second connecting pin; 71. and (5) fixing the plate.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Example 1
As shown in fig. 1 to 3: a rail transit vehicle coupling device comprises a coupling main body, wherein one end of the coupling main body is provided with a first connecting part 3 connected with a pulled body, and the other end of the coupling main body is provided with a second connecting part 2 connected with the pulled body; two sides of the first connecting part 3 are provided with outward extending push rods 4, and push plates 5 used for being abutted to a pulled body are arranged on the push rods 4; the linkage main body is movably connected with the first connecting part.
The scheme has the following advantages: (1) the push rod and the push plate are arranged, so that the traction body can push the pulled body to move. (2) Through linking the main part and being connected with first connecting portion are movable, can reduce the distortion power of car when turning, guarantee to pull the body and be pulled and have sufficient degree of freedom between the body and turn.
In this embodiment, the traction body is a tractor, and the towed body is a train car. The coupling main body comprises a hollow rectangular connecting pipe 1, the second connecting portion 2 comprises a coupler mounting plate 21 connected with one end of the rectangular connecting pipe, a pin hole plate 22 which is arranged up and down is arranged on the coupler mounting plate 21, the pin hole plate 22 is perpendicular to the coupler mounting plate 21, and the first connecting pin 23 perpendicularly penetrates through a pin hole in the pin hole plate 22 to achieve fixed connection. When the second connecting portion is connected to the tractor, the coupler on the tractor can be hooked on the first connecting pin 23, and the first connecting pin is locked by the stopper. Wherein, a reinforcing piece 24 is arranged between the coupler mounting plate 21 and the rectangular connecting pipe 1.
In this embodiment, the first connecting portion 3 is provided with the movable connecting portion 6 at the end connected with the rectangular connecting tube 1, the movable connecting portion 6 includes the connecting plate 61 that sets up relatively from top to bottom, the rectangular connecting tube 1 stretches into between the upper and lower connecting plates 61, passes through the connecting plate 61 and the rectangular connecting tube 1 through the second connecting pin 62, makes the rectangular connecting tube 1 and the first connecting portion 3 rotate and be connected, and the second connecting pin 62 is spacing through the locating part, prevents that it from extracting. The diameter of the pin hole on the rectangular connecting pipe 1 is larger than that of the second connecting pin 62, so that the rectangular connecting pipe 1 can have enough movement to rotate along the second connecting pin 62, and the rectangular connecting pipe 1 is prevented from being twisted off or broken when the carriage turns.
In this embodiment, the first connecting portion 3 includes two opposite side plates 31, and the bottom surfaces and the top surfaces of the two side plates 31 are both inclined surfaces, so that the side plates 31 form an irregular pentagonal structure. The bottom surfaces of the two side plates 31 are connected with a bottom plate and an inclined plate, and the rear side is connected with a back plate 34, so that the first connecting part forms a cavity structure; the bottom of the chamber is formed with a ramp 32 by the connection of the bottom plate and the inclined plate. The upper parts of the two side plates 31 are provided with pin holes, the third connecting pin 33 penetrates through the pin holes and is limited through a limiting piece, and the third connecting pin 33 is used for connecting a coupler on a train carriage. The slope 32 prevents the chain coupler from dropping off the third connecting pin due to the oscillation generated by the upslope and the downslope, and when the chain coupler moves downwards when going downhill, and the third connecting pin does not move downwards in time, the slope contacts with the lower part of the chain coupler to prevent the chain coupler from continuing to move downwards.
Since the above technology of limiting each connecting pin by a limiting member is a mature technology, it is not described in detail here.
In this embodiment, the two ends of the first connecting portion 3 respectively extend outwards to form fixed arms 7 in mirror image arrangement, that is: the fixing arm 7 is screwed or welded to the side plate 31 of the first connecting portion via the fixing plate 71. The fixing arm 71 is a bending structure, one end of the push rod 4 penetrates through the fixing arm 71 and is fixedly connected with the fixing arm, and a universal mechanism and a length adjusting mechanism are arranged between the other end of the push rod 4 and the push plate. Because the push pedal need with the contact of train carriage to promote the carriage and remove, and if the unevenness on the surface that the inventor found the carriage, can make the face contact between carriage and the push pedal become line contact, consequently set up universal mechanism, can adjust the angle of push pedal wantonly, in order to ensure face contact between push pedal can and the carriage, reduce the atress degree, prevent that the push pedal from making the carriage swell or upwarp at the promotion in-process. Through setting up length adjustment mechanism, can adjust the extension length of push pedal, prevent that the push pedal from can't pushing up the carriage, perhaps withhold the phenomenon that the carriage can't compress tightly again and take place.
In the embodiment, the back of the push plate 5 is welded with a universal nut 8, one end of the push rod 4 is connected with a screw rod through threads, the screw rod is provided with a universal joint, and the universal nut and the universal joint form the universal mechanism; the length adjusting mechanism is formed between the screw and the threads of the push rod. The inventor finds that the back of the existing push plate is generally provided with the connecting block, and the universal nut 8 is directly used for replacing the connecting block, so that the cost is reduced, and universal connection can be realized. Wherein the universal joint is a spherical joint 9, and the spherical joint 9 and the screw rod are welded into a whole; ball joint 9 and universal nut 8 adaptation are connected, and universal nut 8 and ball joint 9 are the sphere contact, possess universal regulation's effect, and fit clearance is 1mm simultaneously, has certain frictional resistance, can ensure behind the angle of adjustment, and universal nut and ball joint are difficult not hard up.
The screw rod can set up adjusting nut with the internal thread screwed connection of push rod 4 in the junction of screw rod and push rod, through unscrewing adjusting nut, carries out length control to the screw rod, through screwing up adjusting nut, realizes fixing between screw rod and the push rod. The thrust of the push plate 5 is controlled to be 2-2.2 kN, so that the push rod 4 can be prevented from being bent, and the carriage can be pushed to advance. The diameter of the screw is 30mm at least, and when the maximum length of the screw is 200mm, the screw can be prevented from being broken. In addition, through setting up length adjustment mechanism, when the tractor changed into the pulling carriage from pushing the carriage and moved, can shrink the push pedal, prevent that the push pedal from influencing the carriage and moving, also easily lead to the phenomenon emergence that the push pedal is impaired when pushing down the carriage.
In this embodiment, the push rod 4 is provided with a reinforcing sleeve 41. The inventor finds that the push rod is easy to bend in the process of pushing the carriage by the push plate, so that the strength of the push rod is improved by arranging the reinforcing sleeve, the diameter of the push rod can be reduced, the cost is reduced, and the strength of the push rod can be ensured.
The working principle of the embodiment is as follows: a coupler of a tractor is connected with a second connecting part 2 of a coupling device, and a coupler of a carriage of a train is connected with a first connecting part 3 of the coupling device; after the connection finishes, adjust the flexible length of push pedal 5, make push pedal 5 can push down the carriage, and adjust the angle of universal nut 8 and ball joint 9 according to the roughness of carriage and 5 contact surfaces of push pedal, make and guarantee the biggest face contact between carriage and the push pedal 5, can start the tractor after the adjustment finishes, make the tractor promote the carriage through push pedal 5 and remove to the target location, and the carriage is when turning, accessible rectangular connection pipe 1 rotates along second connecting pin 62, guarantees its degree of freedom. After the traction is finished, the coupling device can be detached.
Example 2
The difference from embodiment 1 is that the push rod of this embodiment is a piston rod, and the piston rod is connected with a driving cylinder, and the driving cylinder can be an electric cylinder, an air cylinder, and the like. The piston rod is driven to stretch by the driving cylinder to form a length adjusting mechanism; the piston rod is provided with a spherical joint which is connected with the nut of the push plate in an adaptive manner to form a universal mechanism. The driving cylinders are arranged two and are fixedly connected with the side plates of the first connecting portion through mounting pieces respectively. It can be said that this structure also enables the length adjustment and the angle adjustment of the push plate, but the structure is more complicated than that of embodiment 1.
Example 3
As shown in fig. 2: the push plate 5 of the embodiment is also provided with a plurality of threaded holes 51 which are fixedly connected with the carriage through screws. The inventor finds that when the carriage turns, especially when the turning range is large, the situation that two push plates cannot simultaneously press the carriage occurs, or when the carriage turns, the push plate on one side is pressed too tightly, so that the push rod is easy to break. Consequently, through on being fixed in the carriage with the push pedal disect, even the carriage turns by a wide margin, also enable two push pedals and do not deviate from the carriage, in addition that one end that first connecting portion 3 and rectangular connection pipe are connected is equipped with swing joint portion 6, when turning, the too tight situation of pressure appears in the push pedal of hypothesis one side, the push pedal of this side can be automatic backward movement because of swing joint portion, and then the push pedal that drives the opposite side impels forward, thereby adjust the dynamics of two push pedals, prevent to press the push rod fracture that becomes too tight, and the service life is greatly prolonged.
In conclusion, on one hand, the invention has simple structure, low cost and energy consumption saving, ensures the activity of the vehicle during turning and prolongs the service life of the coupling device; on the other hand, on the basis of compressing tightly between the push pedal and the body being pulled, there can be no clearance again, ensure that the body being pulled realizes the face atress rather than the line atress to prevent that the push pedal from making the carriage bulge or upwarp at the promotion in-process. The invention can not only push the carriage to move, but also pull the carriage to move, thereby meeting different requirements, and can lead the carriage to move along the track under the traction of the tractor.
Claims (10)
1. A linkage device for a rail transit vehicle comprises a linkage main body, wherein one end of the linkage main body is provided with a first connecting part connected with a pulled body, and the other end of the linkage main body is provided with a second connecting part connected with the pulled body; the traction device is characterized in that two sides of the first connecting part are provided with outward extending push rods, and push plates used for being abutted to a pulled body are arranged on the push rods; the linkage main body is movably connected with the first connecting part.
2. The hitch device for rail transit vehicles according to claim 1, wherein a universal mechanism and a length adjusting mechanism are provided between the push rod and the push plate.
3. The linkage device for the rail transit vehicle as claimed in claim 2, wherein a universal nut is welded to the back of the push plate, one end of the push rod is connected with a screw rod through threads, a universal joint is arranged on the screw rod, and the universal nut and the universal joint form the universal mechanism; the length adjusting mechanism is formed between the screw and the threads of the push rod.
4. A rail vehicle hitch arrangement as claimed in claim 3, wherein the universal joint is a ball joint and the universal nut has a spherical recess which is capable of mating with the ball joint with a mating clearance of no more than 1 mm.
5. The hitching apparatus for rail transit vehicles according to claim 2, wherein the push rod is a piston rod, the piston rod is connected with a driving cylinder, and the length adjusting mechanism is formed by driving the piston rod to extend and retract through the driving cylinder; the piston rod is connected with a universal mechanism.
6. The hitch device for rail transit vehicles according to claim 1, wherein a reinforcing sleeve is provided on the push rod; and the push plate is provided with a connecting hole for fixedly connecting with the pulled body.
7. The hitch device for a rail transit vehicle as claimed in claim 1, wherein the first connecting portion is provided with connecting plates disposed opposite to each other in a vertical direction at an end connected to the hitch body, the hitch body is inserted between the upper and lower connecting plates, and the hitch body is rotatably connected to the first connecting portion by a connecting pin passing through the connecting plates and the hitch body.
8. The linkage device for the rail transit vehicle as claimed in claim 1, wherein fixing arms are extended outwards from two ends of the first connecting part in a mirror image manner, and one end of the push rod penetrates through the fixing arms and is fixedly connected with the fixing arms; or the two ends of the first connecting part are respectively connected with a driving cylinder, and the driving cylinder is connected with the push plate through a piston rod.
9. The hitch device of claim 7, wherein the first coupling portion includes two side plates disposed opposite to each other, a top surface and/or a bottom surface of the side plates is an inclined surface, and a coupling pin for hooking a coupler is disposed between the two side plates.
10. The hitching apparatus for a rail transit vehicle according to claim 3, wherein the thrust of the push plate is controlled to 2-2.2 kN; the diameter of the screw is not less than 30mm, and the extending length of the screw is not more than 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210757334.8A CN115009319B (en) | 2022-06-30 | 2022-06-30 | Coupling device for rail transit vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210757334.8A CN115009319B (en) | 2022-06-30 | 2022-06-30 | Coupling device for rail transit vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115009319A true CN115009319A (en) | 2022-09-06 |
| CN115009319B CN115009319B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210757334.8A Active CN115009319B (en) | 2022-06-30 | 2022-06-30 | Coupling device for rail transit vehicle |
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| CN215204888U (en) * | 2021-05-18 | 2021-12-17 | 中车唐山机车车辆有限公司 | Draw gear of car coupler |
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2022
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| Publication number | Publication date |
|---|---|
| CN115009319B (en) | 2023-10-27 |
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