Quick coupling device for highway and railway dual-purpose tractor

Abstract

The utility model provides a quick coupling device for a highway and railway dual-purpose tractor. The quick coupling device comprises a sliding seat, a hook body combination and a hook head, the sliding seat and the hook head are combined and connected through a hook body; the highway and railway dual-purpose tractor can be rapidly coupled with a wagon wheel set or a bogie, and then the highway and railway dual-purpose tractor can rapidly drag or push the wagon wheel set or the wagon bogie to a designated position. According to the quick coupling device, a hydraulic station of the rail-road dual-purpose vehicle serves as a power source, and the coupling hook head is driven to ascend and descend through the hydraulic cylinder, so that quick coupling with a wagon wheel set or a wagon bogie is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of maintenance, repair, and assembly production of railway freight car bogies and wheelsets, and particularly relates to a quick coupling device for a combined road-rail traction vehicle. Background Art

[0002] Currently, the commonly used combined road-rail vehicles can only tow freight car bogies in railway maintenance workshops, and can only be connected to the fixed towing points on the bogie body through towing rods. It is completely a manual operation. The towing rods are relatively heavy, and the connection is laborious. At least two people are required to cooperate with the operator of the combined road-rail vehicle to complete the connection operation. After the towing operation is completed, if the towing rod needs to work at other workstations, there is also the problem of inconvenient handling. Moreover, there are many types of railway freight car bogies, and there are huge differences in the positions and towing methods of the towing points. It is impossible for the towing rods to be universal and can only be specialized. These are the problems existing in the maintenance, repair, and assembly of railway freight car bogies. In addition, for the transfer operation of freight car wheelsets, it is basically completely pushed by manual labor, which is not only time-consuming and laborious, but also unsafe and has very low efficiency. Summary of the Utility Model

[0003] In view of the above problems, the purpose of this application is to provide a quick coupling device for a combined road-rail traction vehicle, which can drive the coupling hook to lift through a hydraulic cylinder to achieve quick coupling with a freight car wheelset or a freight car bogie.

[0004] To achieve some or all of the above purposes or other purposes, the following technical solutions are provided in this application: A quick coupling device for a combined road-rail traction vehicle includes a sliding seat, a hook body assembly, and a coupling head; the sliding seat and the coupling head are connected through the hook body assembly.

[0005] Further, the sliding seat includes a bottom plate, reinforcing ribs, and a vertical plate; the vertical plate is vertically connected to the bottom plate, the reinforcing ribs are vertically connected to the bottom plate, there are two reinforcing ribs, and the two reinforcing ribs are respectively vertically connected to both sides of the vertical plate.

[0006] Further, it also includes a square hydraulic cylinder and a hinge seat; one end of the square hydraulic cylinder is fixedly connected to the bottom plate, and the other end of the square hydraulic cylinder is hingedly connected to the hinge seat; a through hole is opened between the two reinforcing ribs on the vertical plate, and the hinge seat passes through the through hole of the vertical plate and is connected to the hook body assembly.

[0007] Further, the hinge seat includes a special-shaped connecting body and a connecting plate. The special-shaped connecting body is Z-shaped. One end of the special-shaped connecting body is hingedly connected to the square hydraulic cylinder, and the other end of the special-shaped connecting body is vertically connected to one side of the connecting plate, and the other side of the connecting plate is connected to the hook body assembly.

[0008] Furthermore, the hook body assembly includes a rear connecting seat plate, a connecting rectangular pipe, and a front connecting seat plate; the rear connecting seat plate and the front connecting seat plate are connected by the connecting rectangular pipe; the rear connecting seat plate is connected to the connecting plate; a linear slide rail perpendicular to the ground is provided on one side of the vertical plate close to the hook body assembly, and a slider matching the linear slide rail is provided on the side of the rear connecting seat plate connected to the connecting plate; the front connecting seat plate is connected to the hook head.

[0009] Furthermore, the hook head includes a hook head body, rollers, and pin shafts; the hook head body is a concave frame, and a plurality of openings are provided at both ends and the bottom of the concave frame. A plurality of transverse pin shafts are arranged at intervals on both ends and the bottom of the concave frame, and rollers are arranged on a plurality of pin shafts. The rollers pass through the openings and are rotatably connected to the pin shafts; the hook body assembly is fixedly connected to the outside of one end of the hook head body.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: First, the present utility model provides a quick connection method for the freight car bogie and the freight car wheelset during the maintenance, assembly, and transfer process, and can be integrated into existing equipment such as a road-rail vehicle, which can save equipment investment for users; second, the present utility model achieves connection generalization. At present, the traction points of freight car bogies vary greatly with different models, and the traction tools are also various, making it impossible to achieve generalization, which brings great trouble to operation and tool management. This method of traction on the axle body of the freight car bogie simplifies the types of traction tools to the greatest extent, realizes generalization at the present stage, and reserves an interface for future upgrades; third, it reduces the number of workers, reduces the labor intensity of workers, eliminates potential safety hazards. During work, only the operator of the original road-rail vehicle needs to operate the buttons or remote control on the vehicle to complete all work, without the need to additionally increase workers for manual connection of the bogie, nor to additionally increase workers to push the freight car wheelset for transfer, and there is no need to worry about dangerous situations caused by improper control of the workers' strength. Description of the Drawings

[0011] Figure 1 Schematic diagram of the quick connection device;

[0012] Figure 2 Schematic diagram of the quick connection device with the sliding seat hidden;

[0013] Figure 3 Top view of the quick connection device;

[0014] Figure 4 Structural diagram of the hook body assembly;

[0015] Figure 5 Three-dimensional structural diagram of the sliding seat;

[0016] Figure 6 Three-dimensional structural diagram of the hinge seat;

[0017] Figure 7 Three-dimensional mechanism diagram of the hook head;

[0018] Figure 8 Schematic diagram of the installation position of the dual-purpose tractor for highway and railway and the quick coupling device;

[0019] Figure 9 Schematic diagram of the coupling state between the quick coupling device and the freight car bogie;

[0020] Figure 10 Schematic diagram of the coupling state between the quick coupling device and the freight car wheelset;

[0021] In the figure: 1. Sliding seat; 1a. Bottom plate; 1b. Reinforcing rib; 1c. Vertical plate; 2. Square hydraulic cylinder; 3. Hook body assembly; 3a. Rear connecting seat plate; 3b. Connecting rectangular pipe; 3c. Front connecting seat plate; 4. Hook head; 4a. Hook head body; 4b. Roller; 4c. Pin shaft; 5. Hinge seat; 5a. Special-shaped connecting body; 5b. Connecting plate; 6. Linear slide rail; 7. Slide block. Specific implementation manners

[0022] In order to make the structure and function of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0023] See the attached Figures 1-10 , a quick coupling device for a dual-purpose tractor for highway and railway, comprising a sliding seat 1, a hook body assembly 3, and a hook head 4; the sliding seat 1 and the hook head 4 are connected through the hook body assembly 3.

[0024] Furthermore, the sliding seat 1 includes a bottom plate 1a, a reinforcing rib 1b, and a vertical plate 1c; the vertical plate 1c is vertically connected to the bottom plate 1a, the reinforcing rib 1b is vertically connected to the bottom plate 1a, there are two reinforcing ribs 1b, and the two reinforcing ribs 1b are respectively vertically connected to both sides of the vertical plate 1c; through holes for fixing connection with screws are opened at the outer corners of the bottom plate 1a, and the square hydraulic cylinder 2 is fixedly connected to the bottom plate 1a through the through holes.

[0025] Further, it also includes a square hydraulic cylinder 2 and a hinge seat 5; one end of the square hydraulic cylinder 2 is fixedly connected to the bottom plate 1a, and the other end of the square hydraulic cylinder 2 is hingedly connected to the hinge seat 5; a through hole is provided between two reinforcing ribs 1b on the vertical plate 1c, and the hinge seat 5 passes through the through hole of the vertical plate 1c and is connected to the hook body assembly 3; the sliding seat of the quick coupling device is bolted to the front end face of the rail-road vehicle, and the original hydraulic station of the rail-road vehicle is used to provide high-pressure oil for the quick coupling device to drive the square hydraulic cylinder to act; the advantage of the square hydraulic cylinder is that it has a shorter length than an ordinary hydraulic cylinder under the same stroke, which can maximize the compression of the distance in the height direction; further improving the application range of the coupling device, and it can even be applied to a rail-road vehicle with a height of only 400 mm.

[0026] Further, the hinge seat 5 includes a special-shaped connecting body 5a and a connecting plate 5b. The special-shaped connecting body 5a is Z-shaped. One end of the special-shaped connecting body 5a is hingedly connected to the square hydraulic cylinder 2, and the other end of the special-shaped connecting body 5a is vertically connected to one side of the connecting plate 5b, and the other side of the connecting plate 5b is connected to the hook body assembly 3.

[0027] Further, the hook body assembly 3 includes a rear connecting seat plate 3a, a connecting square pipe 3b and a front connecting seat plate 3c; the rear connecting seat plate 3a and the front connecting seat plate 3c are connected by the connecting square pipe 3b; the rear connecting seat plate 3a is connected to the connecting plate 5b; a linear slide rail 6 perpendicular to the ground is provided on the side of the vertical plate 1c close to the hook body assembly 3, and a slider 7 matching the linear slide rail 6 is provided on the side of the rear connecting seat plate 3a connected to the connecting plate 5b; the front connecting seat plate 3c is connected to the hook head 4; the hook body assembly 3 and the sliding seat 1 are connected by two sets of linear guide pairs. This structure enables the hook body assembly 3 to move smoothly up and down relative to the sliding seat under the drive of the square hydraulic cylinder 2 while ensuring sufficient connection strength, facilitating the hook head to hook the axle body of the freight car wheel set.

[0028] Further, the hook head 4 includes a hook head body 4a, rollers 4b and pin shafts 4c; the hook head body 4a is a concave frame, and a plurality of through holes are provided at both ends and the bottom of the concave frame. A plurality of transverse pin shafts 4c are arranged at intervals at both ends and the bottom of the concave frame, and rollers 4b are arranged on each of the plurality of pin shafts 4c. The rollers 4b pass through the through holes and are rotatably connected to the pin shafts 4c; the hook body assembly 3 is fixedly connected to the outside of one end of the hook head body 4a; the hook head and the hook body are connected by bolts, which is convenient for replacing and upgrading the hook head in the future. The hook head is integrated with rollers, which will rotate as the wheel set rolls when dragging the freight car bogie and the freight car wheel set, and can effectively protect the axle body from unnecessary damage during the transfer process.

[0029] In the quick coupling device of the present utility model, the bottom plate 1a in the sliding seat 1 is connected to the rail-road dual-purpose tractor by bolts. As Figure 8 shown, its bottom plate 1a is connected to the square hydraulic cylinder 2 by screws. The front end of its vertical plate 1c is connected to the linear slide rail. The slider 7 that cooperates with the linear slide rail 6 is connected to the rear connection seat plate 3a in the hook body 3 by bolts. In this way, the hook body 3 and the sliding seat 1 complete the up-and-down sliding fit relationship under the constraint of this guide rail.

[0030] The square hydraulic cylinder 2 is connected to the special-shaped connection body 5a in the hinge seat 5 by a pin shaft. The connecting plate 5b in the hinge seat 5 is connected to the rear connecting plate 3a in the hook body 3 by bolts. In this way, when the square hydraulic cylinder 2 acts, it can drive the hook body 3 and the hook head 4 to move up and down.

[0031] The working process is as follows: First, the rail-road dual-purpose vehicle drives to the designated position, that is, when the hook head 4 of the quick coupling device is directly below the axle body of the freight car bogie wheel set or directly below the axle body of the freight car wheel set. Then, start the hydraulic station of the rail-road dual-purpose tractor to supply high-pressure oil to the square hydraulic cylinder 2. The square hydraulic cylinder 2 acts, driving the hook head 4 to hook the axle body. As Figure 8 and Figure 9 shown, the coupling can be completed. When towing or pushing the freight car bogie or the freight car wheel set, since the axle body of the freight car wheel set also rotates, the roller 4a in the hook head 4 also rolls accordingly, playing a role in protecting the axle body. When the towing or pushing operation is completed, the uncoupling action is opposite to the above process, that is, supply high-pressure oil to the square hydraulic cylinder 2 in the reverse direction.

[0032] The objectives of the present utility model are as follows: 1. To achieve universality. It couples with the axle body. Because at present, the axle bodies of freight car bogies and freight car wheel sets are all E axles, and the larger F axles have not reached the major overhaul cycle yet, only one type needs to be made to achieve universality; 2. It can utilize the existing rail-road dual-purpose vehicle with simple modification. Remove the original coupler fixation, install this device, and connect the hydraulic rubber hoses to add the above-mentioned quick coupling function; 3. Since this quick coupling device is installed on the rail-road dual-purpose vehicle, there is no problem of transporting special drawbars; 4. It saves manpower. The operator of the original rail-road dual-purpose vehicle can complete the coupling and towing operation alone without additional workers; 5. When simply transporting the wheel set, since it was originally pushed manually, first, the labor intensity of the workers is high, and there are also safety hazards. With this quick coupling device, only one operator of the rail-road dual-purpose tractor is needed to complete the quick coupling of the freight car wheel set and transport it to the designated working position.

[0033] The above-disclosed are only the preferred embodiments of the present application. Of course, the scope of rights of the present application cannot be limited by this. Therefore, equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A quick coupling device for a road-rail dual-purpose tractor, characterized in that: It comprises a sliding seat (1), a hook body assembly (3), and a hook head (4); the sliding seat (1) and the hook head (4) are connected via the hook body assembly (3); The sliding seat (1) comprises a bottom plate (1a), a reinforcing rib (1b) and a vertical plate (1c); the vertical plate (1c) is vertically connected to the bottom plate (1a), the reinforcing rib (1b) is vertically connected to the bottom plate (1a), there are two reinforcing ribs (1b), and the two reinforcing ribs (1b) are vertically connected to two sides of the vertical plate (1c) respectively; The hook body assembly (3) comprises a rear connecting seat plate (3a), a connecting rectangular tube (3b) and a front connecting seat plate (3c); the rear connecting seat plate (3a) and the front connecting seat plate (3c) are connected via a connecting rectangular tube (3b); the rear connecting seat plate (3a) and the connecting plate (5b) are connected; a linear slide rail (6) perpendicular to the ground is arranged on the side of the vertical plate (1c) close to the hook body assembly (3); a sliding block (7) matching the linear slide rail (6) is arranged on the side of the rear connecting seat plate (3a) connected to the connecting plate (5b); and the front connecting seat plate (3c) is connected to the hook head (4).

2. The quick coupling device for a road-rail dual-purpose tractor according to claim 1, characterized in that: It also includes a square hydraulic cylinder (2) and an articulated seat (5); one end of the square hydraulic cylinder (2) is fixedly connected to the bottom plate (1a), and the other end of the square hydraulic cylinder (2) is articulatedly connected to the articulated seat (5); a through hole is provided between two reinforcing ribs (1b) on the vertical plate (1c), and the articulated seat (5) passes through the through hole of the vertical plate (1c) and is connected to the hook body assembly (3).

3. The quick coupling device for a road-rail dual-purpose tractor according to claim 2, characterized in that: The articulated seat (5) comprises a special-shaped connector (5a) and a connecting plate (5b), wherein the special-shaped connector (5a) is Z-shaped, one end of the special-shaped connector (5a) is hingedly connected to the square hydraulic cylinder (2), the other end of the special-shaped connector (5a) is vertically connected to one surface of the connecting plate (5b), and the other surface of the connecting plate (5b) is connected to the hook assembly (3).

4. The quick coupling device for a road-rail dual-purpose tractor according to claim 1, characterized in that: The hook head (4) comprises a hook head body (4a), a roller (4b) and a pin shaft (4c); the hook head body (4a) is a concave frame, a plurality of openings are provided on the two ends and the bottom of the concave frame, a plurality of transverse pin shafts (4c) are arranged at intervals on the two ends and the bottom of the concave frame, and a roller (4b) is provided on each of the plurality of pin shafts (4c), and the roller (4b) passes through the opening and is rotatably connected to the pin shaft (4c); the hook body assembly (3) is fixedly connected to the outer side of one end of the hook head body (4a).

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