CN210591913U

CN210591913U - Multi-stage buffer device for car coupler

Info

Publication number: CN210591913U
Application number: CN201921282607.8U
Authority: CN
Inventors: 谭玲; 刘浩; 徐世武; 刘遥渺; 洪洋; 孙宇
Original assignee: Tianjin Locomotive Co ltd
Current assignee: Tianjin Locomotive Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-05-22
Anticipated expiration: 2029-08-08

Abstract

The utility model belongs to the technical field of electric locomotives, in particular to a multi-stage buffer device of a car coupler, which provides a multi-stage buffer device of the car coupler, comprising a first buffer box and a second buffer box; a plurality of first springs are fixedly connected between the inner surface of the first buffer box and the outer surface of the second buffer box; a coupler connecting block is arranged through the left end face of the first buffer box; a car coupler is fixedly connected to the left end of the car coupler connecting block; the right end of the coupler connecting block is connected to the inside of the second buffer box; a pin shaft hole is formed in the second buffer box and penetrates through the top bottom surface of the second buffer box; the pin shaft penetrates through the pin shaft hole and is movably connected with the second buffer box; the pin shaft penetrates through the top bottom surface of the coupler connecting block and is fixedly connected with the coupler connecting block; a second friction bulge is fixedly arranged on the outer surface of the second buffer box; the inner surface of the first buffer box is provided with a first friction bulge. A multistage buffer of coupling can carry out a lot of buffering to the coupling, and buffering effect is good.

Description

Multi-stage buffer device for car coupler

Technical Field

The utility model belongs to the technical field of electric locomotive, especially, relate to a multistage buffer of coupling.

Background

The coupler buffer device is one of the most important parts of the locomotive vehicle and mainly comprises a coupler and a buffer. The car coupler is used for realizing coupling between rolling stocks, transferring traction force and impact force and keeping a certain distance between the rolling stocks; wherein the bumpers are used to dampen longitudinal shock and vibration of the vehicles in operation due to changes in locomotive traction or vehicle collisions during starting, braking and shunting operations, so as to dissipate shock and vibration between the vehicles, thereby mitigating damaging effects on vehicle structure and cargo loads.

The existing coupler buffer device comprises a coupler and a coupler tail cabinet. A front slave plate is arranged in the hook tail cabinet, the surface of the front slave plate is perpendicular to the central line of the hook tail cabinet, the periphery of the front slave plate is fixedly connected with the inner wall of the hook tail cabinet, a rear slave plate is arranged in an inner cavity of the hook tail cabinet behind the front slave plate, the rear slave plate is parallel to the front slave plate, and the periphery of the rear slave plate is fixedly connected with the inner wall of the hook tail cabinet. A cylindrical buffer is arranged in an inner cavity of the coupler tail cabinet between the rear slave plate and the front slave plate, the buffer and the coupler tail cabinet are concentrically arranged, through holes are formed in the end faces of the front slave plate and the coupler tail cabinet corresponding to the front end of the buffer, and the tail of the coupler penetrates through the through holes in the end faces of the front slave plate and the coupler tail cabinet to be connected with the front end of the buffer.

Although the conventional coupler buffering device can buffer couplers connected between different vehicles or carriages, the front slave plate and the rear slave plate are stressed greatly and are easy to damage in the buffering process, so that technicians are required to perform frequent maintenance, and the workload of maintenance personnel is increased.

Disclosure of Invention

In view of this, the utility model aims at providing a multistage buffer of coupling to realize carrying out multistage buffering to the coupling, fully loose the power that the slave plate received before in the cushioning process and back slave plate, thereby prevent that preceding slave plate and back slave plate atress are great to suffer destruction, reduced maintenance personal's work load.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a multi-stage buffer device for a car coupler comprises a first buffer box, wherein a second buffer box is fixedly arranged in the first buffer box; a plurality of first springs are fixedly connected to the inner surface of the first buffer box, and eight springs are preferably symmetrically distributed; the first spring is fixedly connected with the outer surface of the second buffer box; a coupler connecting block is arranged through the left end face of the first buffer box; a car coupler is fixedly connected to the left end of the car coupler connecting block; the right end of the coupler connecting block is connected to the inside of the second buffer box; a pin shaft hole is formed in the second buffer box and penetrates through the top bottom surface of the second buffer box; the pin shaft penetrates through the pin shaft hole and is movably connected with the second buffer box; the pin shaft penetrates through the top bottom surface of the coupler connecting block and is fixedly connected with the coupler connecting block.

Furthermore, the materials used by the first buffer box and the second buffer box are all steel.

Furthermore, the size in round pin shaft hole is greater than the cross-section of round pin axle, and the round pin axle can move in the within range in round pin shaft hole.

Further, a second friction bulge is fixedly arranged on the outer surface of the second buffer box; the inner surface of the first buffer box is provided with a first friction bulge; the first friction bulge and the second friction bulge are made of elastic rubber materials; the cross sections of the first friction bulges and the second friction layer bulges are triangular.

Further, a front slave plate, a movable plate and a rear slave plate which are arranged in parallel are sequentially arranged in the second buffer box from left to right; preceding slave plate and back slave plate all with second baffle-box inner wall fixed connection, fly leaf and second baffle-box inner wall sliding connection.

Further, a second spring and a third spring with different coil radiuses are fixedly arranged between the front slave plate and the movable plate; a fourth spring and a fifth spring with different coil radii are fixedly arranged between the movable plate and the rear slave plate;

furthermore, the radius of the coil of the third spring is larger than that of the coil of the second spring, and the coil of the third spring is sleeved outside the second spring; the radius of the coil of the fifth spring is larger than that of the coil of the fourth spring, and the coil of the fifth spring is sleeved outside the fourth spring.

Furthermore, the right end of the coupler connecting block is fixedly connected with a connecting rod, and the connecting rod penetrates through the front slave plate and is movably connected with the front slave plate; the connecting rod passes through the second spring helicoid and is fixedly connected with the left end of the movable plate.

Compared with the prior art, a multistage buffer of coupling has following advantage:

(1) the utility model discloses all be connected with the spring on fly leaf two sides, can realize cushioning the atress of two directions around the coupling.

(2) The utility model discloses there is the third spring at second spring overcoat, has the fifth spring at fourth spring overcoat, and this mode can increase the buffering cross-section of spring to the pressure that slave plate and back slave plate received before the reduction, the life of slave plate and back slave plate before the extension.

(3) The utility model discloses be connected with first spring between first baffle-box internal surface and second baffle-box surface, it is protruding to be provided with first friction at first baffle-box internal surface, sets up second friction arch at second baffle-box surface, and the three cooperation is used and is further reinforceed the buffering effect to the coupling.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic isometric view of a multi-stage draft gear of a coupler according to an embodiment of the present invention;

fig. 2 is a schematic view of a front view structure of a multi-stage buffer device for a coupler according to an embodiment of the present invention;

fig. 3 is a schematic top view of a section of a multi-stage draft gear of a coupler according to an embodiment of the present invention.

Description of reference numerals:

1-a car coupler; 2-a coupler connecting block; 3-a first buffer tank; 31-a first spring; 32-a first friction projection; 4-a second buffer tank; 41-front slave plate; 42-a movable plate; 43-rear slave plate; 44-a second spring; 45-a third spring; 46-a fourth spring; 47-fifth spring; 48-a second friction projection; 5-limiting pin shaft; 6-pin shaft hole; 7-connecting rod.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to the drawings of fig. 1-3, the coupler multistage buffering device comprises a first buffering box 3, wherein a second buffering box 4 is fixedly arranged in the first buffering box 3; a plurality of first springs 31 are fixedly connected to the inner surface of the first buffer tank 3; the first spring 31 is fixedly connected with the outer surface of the second buffer box 4; a coupler connecting block 2 is arranged on the left end face of the first buffer box 3; the left end of the coupler connecting block 2 is fixedly connected with a coupler 1; the right end of the coupler connecting block 2 is connected to the inside of the second buffer box 4; a pin shaft hole 6 is formed in the second buffer box 4, and the pin shaft hole 6 penetrates through the top bottom surface of the second buffer box 4; the pin shaft 5 passes through the pin shaft hole 6 and is movably connected with the second buffer box 4; the pin shaft 5 penetrates through the top and bottom surfaces of the coupler connecting block 2 and is fixedly connected with the coupler connecting block 2; a second friction bulge 48 is fixedly arranged on the outer surface of the second buffer box 4; the inner surface of the first buffer tank 3 is provided with a first friction bulge 32; a front slave plate 41, a movable plate 42 and a rear slave plate 43 which are arranged in parallel are sequentially arranged in the second buffer box 4 from left to right; the front slave plate 41 and the rear slave plate 43 are both fixedly connected with the inner wall of the second buffer box 4, and the movable plate 42 is slidably connected with the inner wall of the second buffer box 4; a second spring 44 and a third spring 45 with different coil radii are fixedly arranged between the front slave plate 41 and the movable plate 42; a fourth spring 46 and a fifth spring 47 with different coil radiuses are fixedly arranged between the movable plate 42 and the rear slave plate 43; the fifth spring 47 is sleeved outside the fourth spring 46; the coil of the third spring 45 is sleeved outside the second spring 44; the coil of the fifth spring 47 is sleeved outside the fourth spring 46; the right end of the coupler connecting block 2 is fixedly connected with a connecting rod 7, and the connecting rod 7 penetrates through the front slave plate 41 and is movably connected with the front slave plate 41; the connecting rod 7 passes through the second spring 44 and is fixedly connected with the left end of the movable plate 42.

In an embodiment, multistage buffer device of coupling can take place many times buffer process: when the coupler 1 is stressed, the movable plate 42 moves, the second spring 44, the third spring 45, the fourth spring 46 and the fifth spring 47 connected with the movable plate 42 are simultaneously elastically deformed, the elastic direction generated by elastic deformation is opposite to the stress direction of the coupler 1, and partial stress of the coupler is counteracted; according to different stress directions of the coupler 1, the second buffer box 4 in the first buffer box 3 moves horizontally, the first spring 31 deforms elastically, the elastic direction generated by deformation of the first spring 31 is opposite to the stress direction of the coupler 1, and stress of the coupler 1 can be further counteracted; meanwhile, the first friction bulge 32 on the inner surface of the first buffer box 3 is in pressing contact with the second friction bulge 48 on the outer surface of the second buffer box 4, so that the friction force between the inner surface of the first buffer box 3 and the outer surface of the second buffer box 4 is increased, the direction of the friction force is opposite to the stress direction of the coupler 1, and the stress of the coupler 1 can be offset again.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multistage buffer of coupling which characterized in that: comprises a first buffer tank (3), wherein a second buffer tank (4) is fixedly arranged in the first buffer tank (3); a plurality of first springs (31) are fixedly connected to the inner surface of the first buffer box (3); the first spring (31) is fixedly connected with the outer surface of the second buffer box (4); a coupler connecting block (2) is arranged on the left end face of the first buffer box (3); the left end of the coupler connecting block (2) is fixedly connected with a coupler (1); the right end of the coupler connecting block (2) is connected to the inside of the second buffer box (4); a pin shaft hole (6) is formed in the second buffer box (4), and the pin shaft hole (6) penetrates through the top bottom surface of the second buffer box (4); the pin shaft (5) penetrates through the pin shaft hole (6) and is movably connected with the second buffer box (4); the pin shaft (5) penetrates through the top bottom surface of the coupler connecting block (2) and is fixedly connected with the coupler connecting block (2); a second friction bulge (48) is fixedly arranged on the outer surface of the second buffer box (4); the inner surface of the first buffer box (3) is provided with a first friction bulge (32).

2. The coupler multistage damping device according to claim 1, characterized in that: a front slave plate (41), a movable plate (42) and a rear slave plate (43) which are arranged in parallel are sequentially arranged in the second buffer box (4) from left to right; the front slave plate (41) and the rear slave plate (43) are fixedly connected with the inner wall of the second buffer box (4), and the movable plate (42) is connected with the inner wall of the second buffer box (4) in a sliding mode.

3. The coupler multistage damping device according to claim 2, characterized in that: and a second spring (44) and a third spring (45) with different coil radiuses are fixedly arranged between the front slave plate (41) and the movable plate (42).

4. The coupler multistage damping device according to claim 3, characterized in that: a fourth spring (46) and a fifth spring (47) with different coil radiuses are fixedly arranged between the movable plate (42) and the rear slave plate (43).

5. The coupler multistage damping device according to claim 3, characterized in that: the right end of the coupler connecting block (2) is fixedly connected with a connecting rod (7), and the connecting rod (7) penetrates through the front slave plate (41) to be movably connected with the front slave plate (41); the connecting rod (7) passes through a second spring (44) and is fixedly connected with the left end of the movable plate (42).

6. The coupler multistage damping device according to claim 4, wherein: the third spring (45) is sleeved outside the second spring (44) in a spiral way; the fifth spring (47) is sleeved outside the fourth spring (46) in a spiral way.