Hard connection type trailer device

Abstract

The utility model discloses a hard connection type trailer device, and relates to the technical field of trailer devices, the hard connection type trailer device comprises a wheel fixing device, a buffer supporting piece and a false hook connector, one end of the wheel fixing device is fixedly connected with the buffer supporting piece, the other end of the wheel fixing device is used for being connected with a subway axle, and the false hook connector is connected with the buffer supporting piece. One end of the false hook connector is connected with the end, away from the wheel fixing device, of the buffering supporting piece, the other end of the false hook connector is used for being connected with a false hook, and the false hook is used for being connected with a car coupler of the diesel locomotive. By means of a hard connection mode, even if a faulty subway cannot be automatically braked, damping buffering can still be provided for the faulty subway through the buffering supporting piece, so that the faulty subway can be slowly stopped, and the faulty subway cannot collide with a diesel locomotive.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer devices, in particular to a hard-connected trailer device. Background Art

[0002] In today's society, the subway is a relatively common transportation device in the city. During the operation of the subway, a breakdown may occur, resulting in its inability to move halfway. At this time, it is necessary for the subway diesel locomotive to tow the faulty subway back to the depot.

[0003] In the prior art, the subway diesel locomotive and the subway are often connected by a flexible connection. The flexible connection uses a high-strength nylon strap as a carrier, and the subway diesel locomotive drags the subway to move through the high-strength nylon strap.

[0004] However, this existing flexible connection method has a drawback in actual use. After the subway diesel locomotive stops, the towed faulty subway may not be able to brake independently, so there may be a problem of collision between the diesel locomotive and the subway.

[0005] Therefore, there is an urgent need in the art for a hard-connected trailer device to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a hard-connected trailer device to solve the problems existing in the above prior art, realize the hard connection between the diesel locomotive and the faulty subway, and thus avoid the collision between the diesel locomotive and the faulty subway.

[0007] To achieve the above purpose, the utility model provides the following solution:

[0008] The utility model discloses a hard-connected trailer device, which includes a wheel fixator, a buffer support member, and a dummy hook connector. One end of the wheel fixator is fixedly connected to the buffer support member, the other end of the wheel fixator is used to connect to the subway axle, one end of the dummy hook connector is connected to the end of the buffer support member away from the wheel fixator, the other end of the dummy hook connector is used to connect to a dummy hook, and the dummy hook is used to connect to the coupler of the diesel locomotive.

[0009] Preferably, the wheel fixator includes two fixed flanges, the two fixed flanges are fixed by fixing bolts, and a semi-cylindrical brass sleeve is provided on the inner side surface of each of the two fixed flanges.

[0010] Preferably, the inner surface of the brass sleeve is coated with lubricating oil.

[0011] Preferably, the wheel fixator and the buffer support member are fixed by connection bolts.

[0012] Preferably, the buffer support member is a buffer hydraulic cylinder.

[0013] Preferably, a buffer through hole is provided on the piston of the buffer hydraulic cylinder.

[0014] Preferably, the false hook connector is a welded frame.

[0015] Preferably, the false hook connector is connected to the buffer support frame by welding.

[0016] Compared with the prior art, the utility model has achieved the following technical effects:

[0017] The utility model provides a hard-connected trailer device, wherein the wheel holder is used to connect with the subway axle, and the dummy hook connector is used to connect with the dummy hook, and the dummy hook is used to connect with the hook on the diesel locomotive, so as to realize the hard connection between the faulty subway and the diesel locomotive. When the diesel locomotive stops, the faulty subway will continue to move forward due to inertia and cannot brake autonomously. At this time, due to the buffering effect of the buffer support, the faulty subway can be buffered to avoid the impact force of the faulty subway directly acting on the diesel locomotive, and the damping given to the faulty subway by the buffer support will also gradually reduce the speed of the faulty subway until it stops, thereby avoiding the collision between the faulty subway and the diesel locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of a hard-connected trailer device according to an embodiment of the utility model;

[0020] In the figure: 1-wheel holder; 2-buffer support; 3-dummy hook connector. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model aims to provide a hard-connected trailer device to solve the problems existing in the above-mentioned prior art and realize the hard connection between the diesel locomotive and the faulty subway, thereby avoiding collision between the diesel locomotive and the faulty subway.

[0023] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1 As shown, the utility model provides a hard-connected trailer device, including a wheel holder 1, a buffer support 2 and a dummy hook connector 3 connected in sequence. Among them, one end of the wheel holder 1 is fixedly connected to the buffer support 2, and the other end of the wheel holder 1 is used to connect to the subway axle of the faulty subway. One end of the dummy hook connector 3 is connected to the end of the buffer support 2 away from the wheel holder 1, and the other end of the dummy hook connector 3 is used to connect a dummy hook, and the dummy hook is used to connect to the hook of a diesel locomotive. It should be noted here that the dummy hook is a hook structure that matches the hook of a diesel locomotive. For different hooks of diesel locomotives, the shape and size of the dummy hook will also be adjusted and replaced accordingly.

[0025] In actual use, once a subway breaks down, the staff will drive the diesel locomotive to the faulty subway and arrive at the location of the faulty subway. The staff connects the wheel holder 1 to the subway axle, and connects the fake hook connector 3 to the hook on the diesel locomotive through the fake hook, so as to realize the hard connection between the faulty subway and the diesel locomotive. After the connection is completed, the diesel locomotive is started to drive the faulty subway to the parking lot. When the diesel locomotive reaches the parking position and stops, the faulty subway will continue to move forward due to inertia and cannot brake autonomously. At this time, due to the buffering effect of the buffer support 2, the faulty subway can be buffered to prevent the impact force of the faulty subway from directly acting on the diesel locomotive, and the damping of the faulty subway given by the buffer support 2 will also gradually reduce the speed of the faulty subway until it stops, thereby avoiding a collision between the faulty subway and the diesel locomotive.

[0026] In this embodiment, the specific structure of the wheel holder 1 is as follows: Figure 1 As shown, the wheel holder 1 includes two fixing flanges, which can be fixed by fixing bolts after being butted together. Furthermore, a semi-cylindrical brass sleeve is provided on the inner side surfaces (i.e. adjacent surfaces, which are arc-shaped) of the two fixing flanges, and when the two fixing flanges are butted together, the two brass sleeves are spliced ​​into a complete cylindrical structure, and the subway axle is rotatably connected to the circular through hole in the middle of the two brass sleeves.

[0027] During actual use, the staff only need to place the two fixed flanges at the upper and lower ends of the subway axle respectively, and firmly fix the two fixed flanges through the fixing bolts.

[0028] In this embodiment, the inner surface of the brass sleeve is coated with lubricating oil to reduce the sliding friction between the subway axle and the brass sleeve.

[0029] In this embodiment, the wheel fixer 1 and the buffer support 2 are fixed by connecting bolts. Specifically, corresponding connecting holes are provided at the adjacent ends of the wheel fixer 1 and the buffer support 2. The connecting bolts are used to pass through the connecting holes on the wheel fixer 1 and the buffer support 2, and then tightened with nuts to achieve the fixed connection between the wheel fixer 1 and the buffer support 2.

[0030] In this embodiment, the buffer support 2 is a buffer hydraulic cylinder. A common existing hydraulic cylinder can be used for the buffer hydraulic cylinder, and a pre-determined amount of hydraulic oil is filled in both the rod chamber and the rodless chamber of the buffer hydraulic cylinder. The specific amount of hydraulic oil will be adaptively adjusted for different faulty subways, so the amount of hydraulic oil is not limited here.

[0031] And it can be easily seen from the figure that the telescopic end (i.e., the piston rod part) of the buffer hydraulic cylinder is connected to the wheel fixer 1, and the fixed end (i.e., the bottom of the cylinder body) of the buffer hydraulic cylinder is used to connect to the false hook connector 3. Taking Figure 1 the direction as an example, when the diesel locomotive stops, the faulty subway on the left will still continue to move to the right. At this time, the telescopic rod of the buffer hydraulic cylinder moves to the right accordingly, and the hydraulic oil pressure in the rodless chamber on the right will continuously increase as the piston moves to the right, thereby generating an increasing reverse resistance to the piston rod to gradually stop the faulty subway.

[0032] In this embodiment, in order to avoid excessive oil pressure in the rodless chamber during actual use, a buffer through hole can be provided at the piston of the buffer hydraulic cylinder. When braking the faulty subway, the piston continuously moves towards the rodless chamber, causing the oil pressure in the rodless chamber to increase. At this time, a small amount of hydraulic oil in the rodless chamber can flow into the rod chamber through the buffer through hole, thus avoiding damage to the buffer hydraulic cylinder caused by excessive oil pressure in the rodless chamber.

[0033] In this embodiment, the false hook connector 3 is a simple welded frame, and its specific shape can be adaptively adjusted according to different false hook structures or models, so its specific structure is not limited here.

[0034] In this embodiment, the false hook connector 3 is connected to the buffer support frame by welding, and the false hook connector 3 can be connected to the false hook by welding or bolts, etc. Among them, it is preferably connected by bolts, which is convenient for the installation and disassembly of the false hook.

[0035] In this utility model, specific examples are used to elaborate on the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the utility model.

Claims

1. A hard-connected trailer device, characterized in that: It comprises a wheel holder, a buffer support and a dummy hook connector, wherein one end of the wheel holder is fixedly connected to the buffer support, and the other end of the wheel holder is used to be connected to a subway axle, one end of the dummy hook connector is connected to an end of the buffer support away from the wheel holder, and the other end of the dummy hook connector is used to connect a dummy hook, and the dummy hook is used to be connected to a coupler of a diesel locomotive.

2. The hard-connected trailer device according to claim 1, characterized in that: The wheel holder comprises two fixing flanges, which are fixed by fixing bolts, and a semi-cylindrical brass sleeve is provided on the inner side surfaces of the two fixing flanges.

3. The hard-connected trailer device according to claim 2, characterized in that: The inner surface of the brass sleeve is coated with lubricating oil.

4. The hard-connected trailer device according to claim 1, characterized in that: The wheel holder and the buffer support are fixed to each other via connecting bolts.

5. The hard-connected trailer device according to claim 1, characterized in that: The buffer support member is a buffer hydraulic cylinder.

6. The hard-connected trailer device according to claim 5, characterized in that: A buffer through hole is arranged at the piston of the buffer hydraulic cylinder.

7. The hard-connected trailer device according to claim 1, characterized in that: The false hook connector is a welded frame.

8. The hard-connected trailer device according to claim 7, characterized in that: The false hook connector is connected to the buffer support member by welding.

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