Bogie maintenance auxiliary device

Abstract

The utility model relates to a bogie maintenance auxiliary device, which comprises a base, which is provided with a support surface for supporting a bogie main body, and a suspension belt groove for avoiding a bogie suspension belt, and is used for supporting a rear wheel outside the support surface in a suspended state, and the support surface is provided with a suspension belt groove for avoiding the suspension belt of the bogie; and the at least two limiting baffles are oppositely installed on the two sides of the base and used for limiting the bogie placed on the supporting face. The device is simple in overall structure, can provide enough supporting force for the bogie, enables the distance between the bogie and wheels and the ground to be proper, conforms to the ergonomics design, facilitates overhauling operation of operators on the bogie, meanwhile can effectively prevent the bogie from slipping off in the operation process, guarantees overhauling operation safety, and improves the overhauling efficiency. And meanwhile, after the bogie is hoisted to the device, the hoisting belts can be conveniently pulled out.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle manufacturing, and particularly relates to an auxiliary device for overhauling a bogie. Background Art

[0002] When the wheels of a low-floor tram bogie need to be replaced and the low-floor bogie is overhauled, since the maximum height of the bogie components from the ground is about 70 cm, maintenance personnel need to bend down to operate, resulting in high operation difficulty. At the same time, due to the low height of the bogie from the ground, when disassembling and fastening some fasteners, it is impossible to disassemble due to the narrow space. Content of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide an auxiliary device for overhauling a bogie, which has a simple structure and can balance and support the bogie, lift the bogie to the height where the wheels are off the ground, and facilitate maintenance personnel to operate on the bogie.

[0004] To solve the above technical problem, the basic concept of the technical solution adopted by the utility model is:

[0005] An auxiliary device for overhauling a bogie, comprising:

[0006] A base, having a support surface for supporting the bogie main body, with the rear wheels in a suspended state outside the support surface, and having a sling groove on the support surface for avoiding the bogie sling;

[0007] Limit baffles, at least two, relatively installed on both sides of the base, for restricting the bogie placed on the support surface.

[0008] Furthermore, it further comprises a plurality of bottom plates, welded below the bottom of the base, with bolt holes opened on the bottom plates, and fixedly connected to the ground through fasteners, and the space between adjacent bottom plates is a forklift operation space.

[0009] Furthermore, the base is integrally in a hollow cuboid structure, and the upper surfaces of the four sides of the cuboid are the support surfaces for supporting the bogie.

[0010] Furthermore, the base is composed of an upper frame, a lower frame and a plurality of support columns in the middle.

[0011] Furthermore, the base is spliced and welded by a plurality of square tubes.

[0012] Furthermore, at both ends of one long side of the base, the sling groove is formed by downward depression from the support surface.

[0013] Furthermore, the limit baffles are arranged on the two long sides of the base and are adapted to the lengths of the corresponding long sides.

[0014] Furthermore, the sling groove has a depth of at least 40 mm.

[0015] Furthermore, the limit baffle is composed of a fixing portion and a stopping portion, the fixing portion is fixedly connected to the side surface of the base, and the stopping portion protrudes upward from the supporting surface.

[0016] Furthermore, the stopper is arranged to extend upwardly and obliquely from the root in a direction away from the base.

[0017] In summary, the bogie maintenance auxiliary device provided by the utility model has the following advantages compared with the prior art:

[0018] (1) The utility model has a simple overall structure. The base and the limit baffle are used to provide sufficient support for the bogie and keep the bogie and the wheels at a suitable height from the ground. It conforms to the ergonomic design and is convenient for operators to perform maintenance operations on the bogie. At the same time, it can effectively prevent the bogie from slipping during operation, thereby ensuring the safety of the maintenance operation.

[0019] (2) The utility model reserves a sling groove on the supporting surface for avoiding the sling, so that the sling can be pulled out after the bogie is hoisted to the device.

[0020] (3) The utility model utilizes the base to support the axle bridge of the bogie, which can provide sufficient supporting force while allowing the wheels at both ends of the axle bridge to be placed on the outside of the base in a suspended state, making it convenient to replace the wheels during maintenance operations.

[0021] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0023] In the attached picture:

[0024] Figure 1 It is a structural schematic diagram of the auxiliary device of the utility model.

[0025] In the figure:

[0026] Base 1, limit baffle 2, fixing portion 21, stop portion 22, sling groove 3, supporting surface 4, bottom plate 5.

[0027] It should be noted that the attached drawings and the written description are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments 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. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] As Figure 1 shown, the present utility model provides a bogie maintenance auxiliary device for supporting the bogie of a low-floor tram.

[0032] The device includes a base 1 and a limit baffle 2. Among them, the base 1 has a support surface 4 for supporting the bogie body, and a sling groove 3 for avoiding the bogie sling is provided on the support surface 4. There are at least two limit baffles 2, which are oppositely installed on the base 1 to limit the bogie placed on the support surface 4.

[0033] During maintenance, the base 1 is used to support the bogie body. For the bogie of a low-floor tram, the main body of the bogie is the axle bridge part. After support, the wheels at both ends of the axle bridge are placed outside the support surface 4 of the base. In this way, while providing sufficient support force for the bogie, the wheels at both ends of the axle bridge can be in a suspended state, which is convenient for replacing the wheels during maintenance operations.

[0034] During maintenance, the base 1 is used to support the bogie, which can provide sufficient support force for the bogie and make the bogie and the wheels at a suitable height from the ground, so that the operator can perform maintenance operations on the bogie including replacing wheels. In this embodiment, it is further preferred that the height of the base 1 is designed to be 400mm. Such a support height conforms to the ergonomic design, which is conducive to reducing the labor intensity during maintenance operations, improving work efficiency and work quality, and also helps to further improve the safety during operations. According to the size of the low-floor tram bogie, it is further preferred that the length of the base 1 is designed to be 1000mm and the width is designed to be 600mm. In this way, while ensuring that the wheels are suspended, sufficient support area can be provided for the bogie, ensuring the stability of the bogie support and ensuring the quality of the maintenance operation.

[0035] During maintenance, the bogie placed on the supporting surface 4 is clamped by two limit baffles 2 on the base 1, which can effectively prevent the bogie from sliding during operation and ensure the safety of maintenance work.

[0036] A sling groove 3 for avoiding the sling is reserved on the supporting surface 4, so that the sling can be pulled out after the bogie is hoisted to the device.

[0037] In this embodiment, it is further preferred that the base 1 is a cubic structure with a central space, and the upper surface of the cubic structure is a support surface 4 for supporting the bogie. This can ensure the structural strength of the base 1, provide a larger contact area with the bogie, provide sufficient support for the bogie, and help reduce the weight of the base 1.

[0038] In this embodiment, it is further preferred that the base 1 is composed of an upper frame 11, a lower frame 12 and a plurality of supporting columns 13 in the middle. It is more preferred that the base 1 is formed by splicing and welding a plurality of square tubes, which can also ensure the structural strength of the base 1 while reducing the total weight of the base 1, making it easier to transport the base 1.

[0039] In this embodiment, according to the structure of the bogie to be supported and the installation position of the sling when lifting the bogie, preferably, at the two ends (i.e., two corners) of one of the long sides of the base 1, the support surface 4 is depressed downward to form two sling grooves 3. Further preferably, the depth of the sling groove 3 is at least 40 mm, and more preferably the depth of the sling groove 3 is 40 mm. In this way, when the bogie is supported on the support surface 4, the two slings wound on the bogie are respectively placed in the two sling grooves 3. Because the sling grooves 3 have sufficient depth, the operator can easily pull out the slings in the state of supporting the bogie, which solves the problem that the slings are pressed down and cannot be pulled out when the bogie is placed on the load-bearing tooling.

[0040] To avoid damaging the surface of the bogie, a layer of protective pad (not shown in the figure) is laid on the support surface 4. The protective pad is preferably a rubber pad, which can protect the paint of the bogie from damage and also has an anti-slip function.

[0041] In this embodiment, preferably, it further includes a plurality of bottom plates 5. The bottom plates 5 are square plates. For example, four bottom plates 5 are provided and welded below the four corners of the bottom of the base 1. A part of the area of the bottom plate 5 is located outside the base 1. Bolt holes (not shown in the figure) are provided on the bottom plate 5 and fixedly connected to the ground through fasteners such as expansion bolts, so that the base 1 can stably support the bogie.

[0042] In this embodiment, because the bottom plates 5 with a certain thickness are installed below the base 1, the distance between every two adjacent bottom plates 5 can be further utilized as a fork slot for forklift transportation, which is convenient for transporting the device. At the same time, there is no need to additionally set a fork slot, which is beneficial to simplifying the structure of the device and reducing costs.

[0043] In this embodiment, preferably, the limit baffles 2 are arranged on the two long sides of the two bases 1 to limit the displacement of the bogie in the width direction, clamp the bogie on the base 1, prevent the bogie from slipping off the base 1 during operation, and ensure the operation safety. More preferably, the limit baffles 2 match the length of the long side and have the same length as the length of the base 1 to ensure that the limit baffles 2 can effectively block the bogie.

[0044] In this embodiment, further preferably, the limit baffle 2 is composed of a fixing part 21 and a stop part 22. The fixing part 21 is fixedly connected to the side surface of the base 1, and more preferably fixed to the base 1 by welding to ensure the stable and firm connection between the limit baffle 2 and the base 1. The stop part 22 protrudes upward from the support surface 4 to play a role in clamping the bogie.

[0045] In this embodiment, even more preferably, the stop part 22 extends obliquely upward from the root in the direction away from the base 1, and preferably the inclination angle is less than 30°. In this way, it can not only play a role in limiting and blocking, but also facilitate the bogie to be hoisted onto the base 1, playing a certain guiding role and being beneficial to improving the operation efficiency.

[0046] In this embodiment, the limit baffle 2 is integrally bent from a metal plate with a certain thickness to ensure the strength of the limit baffle 2 and ensure that it can clamp the bogie.

[0047] When the device is in use, the axle bridge of the bogie is supported by the support surface 4 of the base 1, and the front and rear limit baffles 2 clamp the axle bridge of the bogie to prevent the bogie from slipping. At the same time, the wheels at both ends of the axle bridge are placed outside the support surface 4, so that the wheels are in a suspended state, which is convenient for the operator to replace the wheels.

[0048] The auxiliary device for overhauling the bogie provided by the utility model has the following advantages:

[0049] (1) The overall structure of the device is simple. By using the base 1 and the limit baffle 2, it can not only provide sufficient support force for the bogie, but also make the bogie and the wheels at a suitable height from the ground, which conforms to the ergonomic design, facilitates the operator to perform the overhaul operation on the bogie, and can effectively prevent the bogie from slipping during the operation, ensuring the safety of the overhaul operation.

[0050] (2) The device has a sling groove 3 reserved on the support surface 4 for avoiding the sling. After the bogie is hoisted onto the device, the sling can be easily pulled out, solving the situation that the sling cannot be pulled out because it is pressed when the bogie is placed on the loading tool.

[0051] (3) The part of the device that supports the bogie axle bridge by using the base 1 can, while providing sufficient support force, make the wheels at both ends of the axle bridge suspended outside the base 1, which is convenient for replacing the wheels during the overhaul operation.

[0052] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art of this patent can make some changes or modifications into equivalent embodiments by using the technical content prompted above within the scope of the technical solution of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the present utility model.

Claims

1. An auxiliary device for overhauling a bogie, characterized in that, Comprising: A base having a support surface for supporting the bogie body, with the rear support wheels placed outside the support surface in a suspended state, and a sling groove for avoiding the bogie sling on the support surface; Limit baffles, at least two of which are oppositely installed on both sides of the base for restricting the bogie placed on the support surface.

2. The bogie maintenance assistance device according to claim 1, wherein: It further includes a plurality of bottom plates welded below the bottom of the base, with bolt holes formed in the bottom plates and fixedly connected to the ground through fasteners, and the space between adjacent bottom plates is a forklift operation space.

3. The bogie maintenance assistance device according to claim 1, characterized in that: The base is integrally in a hollow cube structure, and the upper surfaces of the four sides of the cube are support surfaces for supporting the bogie.

4. The bogie maintenance auxiliary device according to claim 3, characterized in that: The base is composed of an upper frame, a lower frame and multiple support columns in the middle.

5. The bogie maintenance auxiliary device according to claim 4, characterized in that: The base is formed by splicing and welding a plurality of square tubes.

6. The bogie maintenance assistance device according to claim 3, characterized in that: At both ends of one long side of the base, the sling groove is formed by downward depression from the support surface.

7. The bogie maintenance assistance device according to claim 3, characterized in that: The limit baffles are arranged on the two long sides of the base and are adapted to the lengths of the corresponding long sides.

8. The bogie maintenance assistance device according to claim 1, characterized in that: The depth of the sling groove is at least 40 mm.

9. The bogie maintenance auxiliary device according to any one of claims 1-8, characterized in that: The limit baffle is composed of a fixing part and a stopping part, the fixing part is fixedly connected to the side surface of the base, and the stopping part protrudes upward from the support surface.

10. The bogie maintenance auxiliary device according to claim 9, characterized in that: The stopping part extends obliquely upward from the root in a direction away from the base.

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