阅读说明：本技术 一种适于轻型铁路车辆的连接装置 (Connecting device suitable for light railway vehicle ) 是由 张国富 许唯杰 于 2021-09-14 设计创作，主要内容包括：本发明公开了一种适于轻型铁路车辆的连接装置,包括套筒壳体,所述套筒壳体内具有一可左右浮动的推拉体,所述套筒壳体的左右两内侧壁分别与所述推拉体之间顶装有左、右缓冲弹簧体；以及短拉杆及连接于推拉体的长拉杆；以及端部连接头,两个端部连接头分别各通过一球头关节轴承连接于所述长拉杆、短拉杆。本申请的连接装置通过端部连接头实现前后相邻的两个车辆间的机械连接,通过可左右浮动的推拉体结构设计使得前后车辆运行时产生的作用力得到缓解,通过端部连接头内的球头关节轴承使得满足前后相邻车辆的蛇形运动需求,缓解运行时产生的震动。而且该连接装置结构紧凑体积小,占用安装空间小。(The invention discloses a connecting device suitable for light railway vehicles, which comprises a sleeve shell, wherein a push-pull body capable of floating left and right is arranged in the sleeve shell, and a left buffer spring body and a right buffer spring body are respectively arranged between the left inner side wall and the right inner side wall of the sleeve shell and the push-pull body in a jacking mode; a short pull rod and a long pull rod connected with the push-pull body; and the two end connectors are respectively connected with the long pull rod and the short pull rod through a ball joint bearing. The connecting device realizes mechanical connection between two adjacent vehicles around through the end connector, enables the acting force generated when the vehicles run to be relieved through the structural design of the left-right floating push-pull body, enables the snake-shaped motion requirement of the adjacent vehicles around to be met through the ball joint bearing in the end connector, and relieves vibration generated when the vehicles run. And the connecting device has compact structure, small volume and small occupied installation space.)

1. A coupling device for a light railway vehicle, comprising:

the sleeve comprises a sleeve shell, wherein a push-pull body capable of floating left and right is arranged in the sleeve shell, and a left buffer spring body and a right buffer spring body are respectively arranged between the left inner side wall and the right inner side wall of the sleeve shell and the push-pull body in a jacking mode; and

the long pull rod is connected to the push-pull body, and a passage opening through which the long pull rod can freely pass is formed in the side end of the sleeve shell; and

the short pull rod is fixedly arranged at the other side end of the sleeve shell; and

and the two end connectors are respectively connected with the long pull rod and the short pull rod through a ball joint bearing.

2. A connection means for a light railway vehicle as claimed in claim 1, wherein said sleeve housing is configured as a hollow cylindrical structure inside which said push-pull body is movable side-to-side along its length.

3. A connection means for a light railway vehicle as claimed in claim 2, wherein one side end of the sleeve housing is capped with an end cap through which the long tension rod can pass freely.

4. A connection means for a light railway vehicle as claimed in claim 1, wherein the long and short tie rods are located on the same centerline as the sleeve housing.

5. The connecting device for a light railway vehicle as claimed in claim 1, wherein the end connector is formed with a guide portion gradually contracting in diameter from an outer middle position thereof, and the guide portion is formed with a connecting screw hole therein.

6. An attachment system for a light railway vehicle as claimed in claim 5, wherein the end connector is further formed with at least one outwardly projecting locating portion on the outer periphery thereof.

7. An attachment means for a light railway vehicle as claimed in claim 1, wherein the end connector has a mounting ball cavity for mounting the ball joint bearing.

8. An attachment means for a light railway vehicle as claimed in claim 7, wherein said ball joint bearing comprises a ball bearing and a shank, said ball bearing being disposed within said mounting ball cavity and fixedly connected to said end connector by a pin.

9. The device of claim 8, wherein a complementary spacer is provided between the ball bearing and the side wall of the ball receiving cavity, and the pin passes through the ball receiving cavity, the complementary spacer and the ball bearing in sequence.

10. A connecting device for a light railway vehicle as claimed in any one of claims 1 to 9, further comprising a cable fixing bracket connected to the sleeve housing, wherein a cable is mounted on the cable fixing bracket, and plugs are provided at both ends of the cable.

Technical Field

The invention relates to the technical field of vehicle connection, in particular to a connecting device suitable for a light railway vehicle.

Background

A vehicle connecting device is an important part in railway vehicles, and mainly functions to connect two vehicles adjacent in front and rear and transmit force between the vehicles. For example, in a railway vehicle, when the vehicle needs rescue or is connected for use, a vehicle connecting device is often used to connect adjacent vehicles in front and rear. One type of vehicle coupling device that is currently used is a coupler, but such couplers are complex in structure, bulky, heavy, and not suitable for small rail vehicles.

Disclosure of Invention

The object of the present invention is to provide a connection device for light railway vehicles, which solves the problems set forth in the background art.

In order to achieve the above object, the present invention employs the following:

a connection device for a light railway vehicle, comprising:

the sleeve comprises a sleeve shell, wherein a push-pull body capable of floating left and right is arranged in the sleeve shell, and a left buffer spring body and a right buffer spring body are respectively arranged between the left inner side wall and the right inner side wall of the sleeve shell and the push-pull body in a jacking mode; and

the long pull rod is connected to the push-pull body, and a passage opening through which the long pull rod can freely pass is formed in the side end of the sleeve shell; and

the short pull rod is fixedly arranged at the other side end of the sleeve shell; and

and the two end connectors are respectively connected with the long pull rod and the short pull rod through a ball joint bearing.

Optionally, the sleeve housing is configured as a hollow cylindrical structure, and the push-pull body is arranged in the sleeve housing and can move left and right along the length direction of the push-pull body.

Optionally, one side end of the sleeve housing is covered with an end cap, and the long pull rod can freely pass through the end cap.

Optionally, the long pull rod and the short pull rod are both located on the same center line as the sleeve housing.

Optionally, a guide portion gradually contracting in diameter is formed at an outer middle position of the end connector, and a connection threaded hole is formed in the guide portion.

Optionally, the outer periphery of the end connector is further formed with at least one positioning portion protruding outwards.

Optionally, the end connector has a mounting ball cavity for mounting the ball joint bearing.

Optionally, the ball joint bearing includes a spherical bearing and a shaft, and the spherical bearing is disposed in the mounting ball cavity and is fixedly connected to the end connector through a pin.

Optionally, a position supplementing gasket is respectively arranged between the spherical bearing and the side wall of the installation ball cavity, and the pin sequentially penetrates through the installation ball cavity, the position supplementing gasket and the spherical bearing.

Optionally, the sleeve housing further comprises a cable fixing bracket connected to the sleeve housing, a cable is mounted on the cable fixing bracket, and plugs are arranged at two ends of the cable

Through adopting above-mentioned technical scheme, the connecting device of this application passes through end connection head and realizes the mechanical connection between two adjacent vehicles around, and the push-and-pull body structural design that floats through can controlling makes the effort that produces when vehicle operation around the front and back obtain alleviating, makes the snakelike motion demand that satisfies adjacent vehicle around through the bulb joint bearing in the end connection head, alleviates the vibrations that produce when moving. And the connecting device has compact structure, small volume and small occupied installation space.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a connecting device for a light railway vehicle according to a first embodiment of the present invention;

FIG. 2 is a side view of a coupling device for a light rail vehicle according to a first embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a schematic structural view of a connecting device for a light railway vehicle according to a second embodiment of the present invention

In the figures, the various reference numbers are:

1-sleeve shell, 2-push-pull body, 3-long pull rod, 4-short pull rod, 5-end connector, 6-cable fixing support, 7-cable, 8-ball joint bearing, 11-buffer spring body, 12-end cover, 51-guide part, 52-connecting threaded hole, 53-positioning part, 54-installation ball cavity, 55-pin, 56-position-compensating gasket, 71-plug, 81-ball bearing and 82-shaft handle.

Detailed Description

In order to more clearly illustrate the invention, the invention is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.

The first embodiment is as follows:

as shown in fig. 1 to 4, the present invention provides a connecting device for a light railway vehicle, which comprises a sleeve housing 1, wherein a push-pull body 2 capable of floating left and right is arranged in the sleeve housing 1, a left buffering spring body 11 and a right buffering spring body 11 are respectively arranged between left and right inner side walls of the sleeve housing 1 and the push-pull body 2, it should be noted that, when no external force acts on the push-pull body, the initial position of the push-pull body is located at the middle position in the sleeve housing, when the external force acts on the push-pull body, the push-pull body can move left or right, and once the external force disappears, the push-pull body can return to the initial position under the elastic action of the left buffering spring body and the right buffering spring body.

The push-pull device further comprises a long pull rod 3 connected to the push-pull body 2, and a passage opening (not shown in the figure) for allowing the long pull rod 3 to freely pass through is formed at the side end of the sleeve shell 1. Wherein, the long pull rod and the push-pull body can be fixed by welding or connected by screw thread, and can also be integrally formed by casting, material-arranging turning and the like. The assembled long pull rod and the push-pull body are somewhat similar to the structure of a piston cylinder, the long pull rod is equivalent to a piston rod which can stretch out and draw back along the length direction of the cylinder barrel, and the push-pull body is equivalent to a piston in the cylinder barrel.

And the short pull rod 4 is fixedly arranged at the other side end of the sleeve shell 1. Wherein, threaded connection or welding fixing mode can be selected between the short pull rod and the sleeve shell. It is worth noting that no relative movement between the short tie rod and the sleeve housing occurs.

The connecting structure further comprises end connectors 5, and the two end connectors 5 are respectively connected to the long pull rod 3 and the short pull rod 4 through ball joint bearings 8. The end connectors are parts to be fixedly connected with connecting sockets on the railway vehicles, and when the end connectors are used, an operator manually connects the left end connector and the right end connector into the connecting sockets on the two vehicles which are adjacent in the front and the back correspondingly respectively, so that the mechanical connection between the two vehicles which are adjacent in the front and the back is realized; in the running process of the vehicle, when the front vehicle is accelerated or decelerated, the long pull rod can float forwards or backwards with the push-pull body in the sleeve shell to a certain extent, so that acting force generated in the running process of the vehicle is relieved. In addition, ball joint bearing can make end connection head realize level, vertical, the ascending multi-angle of side direction and rotate to can satisfy the rotation demand of adjacent vehicle when turning round around, in addition, still can alleviate the vibrations that arouse after jolting because of the steel rail unevenness when the vehicle operation to a certain extent. Through the push-pull piece and the ball joint bearing which can float left and right, the buffering and damping effects are greatly improved, mutual abrasion among all parts is avoided, and the service life of the parts is prolonged.

The sleeve housing 1 is a hollow cylindrical structure, and the push-pull body 2 is arranged in the sleeve housing and can move left and right along the length direction of the sleeve housing. In order to reduce the friction force and improve certain wear resistance, the outer surface of the push-pull body can be provided with a wear-resistant material layer, and the inner surface of the sleeve shell can be attached with a wear-resistant material layer.

Further, one side end of the sleeve housing 1 is covered with an end cap 12, and the long pull rod 3 can freely pass through the end cap 12. The end cover is designed to facilitate installation of the push-pull body, the buffering spring body and the long pull rod in the sleeve shell, after assembly is completed, the end cover covers the side wall of the sleeve shell to achieve sealing, and certainly, the end cover can be detached so that failure causes can be found at a later stage and corresponding problems can be solved.

It is noted that the long pull rod 3 and the short pull rod 4 are both located on the same center line as the sleeve housing 1. This is to ensure that a good balance state can be maintained between the two end connectors after the vehicle connecting device has successfully achieved mechanical connection between two vehicles adjacent in the front-rear direction.

In a specific embodiment, the end connector 5 is formed with a guide portion 51 with a gradually decreasing diameter at an outer middle position, and the guide portion 51 is opened with a connection threaded hole 52 inward. The connecting socket on the existing vehicle is constructed into an inwards-concave hole groove, a screw rod is arranged in the hole groove, and the guide part is used for quickly positioning the hole groove, so that a connecting threaded hole on the guide part is quickly aligned with the screw rod, the mounting difficulty is reduced, and the mounting efficiency is improved.

Further, the outer periphery of the end connector 5 is formed with at least one positioning portion 53 protruding outward. When the end connector is installed inside the connecting socket on the vehicle, the end connector can be fixed through the matching of the protruding positioning part on the end connector and the reserved positioning groove on the vehicle, and then the screw in the connecting socket can be conveniently screwed into the connecting threaded hole on the end connector quickly.

In a specific embodiment, the end connection 5 has a mounting ball cavity 54 for mounting the ball joint bearing 8. The ball joint bearing 8 comprises a spherical bearing 81 and a shaft handle 82, the spherical bearing 81 is arranged in the mounting ball cavity 54, the shaft handle 82 is used for being connected with the short pull rod 4/the long pull rod 3, and the connection mode can be welded, fixed or connected in a threaded mode.

Further, during the actual assembly process, the spherical bearing 81 is fixedly connected to the end connector 5 by a pin 55 based on the structural characteristics of the ball joint bearing.

Furthermore, since the inner space of the ball-mounting cavity 54 is slightly larger than the size of the ball bearing 81, so that the ball bearing and the end connector cannot be completely adapted to each other, although a pin is inserted between the ball bearing and the end connector, the pin cannot solve the problem that the ball bearing is laterally offset in the ball-mounting cavity, and therefore, in the present application, a position-supplementing pad 56 is respectively disposed between the ball bearing 81 and the side wall of the ball-mounting cavity 54, and the pin 55 sequentially passes through the ball-mounting cavity 54, the position-supplementing pad 56 and the ball bearing 81, so that the ball bearing 81 can be firmly mounted in the ball-mounting cavity 54 by the position-supplementing pads 56 at both sides of the ball bearing 81.

Example two

Some special rail vehicles need to realize mechanical connection and electrical connection between front and rear adjacent vehicles, and a cable is connected between the two vehicles after the front and rear vehicles are connected by a coupler in the traditional method, so that the number of processes is increased, and the working efficiency is reduced. Therefore, in the present embodiment, the mechanical locking and the electrical connection are integrated. Specifically, as shown in fig. 5, the connecting device further includes a cable fixing bracket 6 connected to the sleeve housing 1, a cable 7 is mounted on the cable fixing bracket 6, and plugs 71 are provided at both ends of the cable 7. It should be noted that the cable itself is flexible and should not be too short, i.e. shorter than the limit distance that can be produced by the two end connectors, i.e. the longest length of the long pull rod that can be extended when the push-pull body is moved to the rightmost end, but of course the cable length should not be too long, which could be dragged by obstacles on the rails during operation of the vehicle and cause a potential safety hazard. When the automobile cable is used, after two front and rear adjacent vehicles are connected by the two end connectors, plugs at two ends of the cable are correspondingly inserted into sockets on the front and rear vehicles.

The utility model provides a vehicle connecting device can be with mechanical locking, electric connection collection in an organic whole, mechanical connection between two adjacent vehicles around accessible end connection head realizes, electric connection between two adjacent vehicles around the plug on the accessible cable realizes, the push-and-pull body structural design that floats about the accessible makes the effort that produces when the vehicle moves around obtain alleviating, bulb joint bearing in the accessible end connection head makes the rotation demand of satisfying adjacent vehicle around, alleviate the vibrations that produce when moving. And the connecting device has compact structure, small volume and small occupied installation space, and is very suitable for small or light railway vehicles.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.