Railway vehicle wheel dismounting and mounting device

Abstract

A railway vehicle wheel dismounting device comprises a portal frame, a lifting mechanism and a turnover mechanism, wherein the lifting mechanism and the turnover mechanism are arranged on the portal frame. The portal frame is placed on the plane; the lifting mechanism is connected with a lifting driving assembly, the lifting mechanism is vertically installed on the portal frame in a sliding mode, and the lifting mechanism is connected with a turnover mechanism and drives the turnover mechanism to move up and down along the portal frame; the turnover mechanism is installed on the lifting mechanism, and a fixing assembly used for fixing the wheels is arranged on the turnover mechanism; the turnover mechanism is connected with a turnover driving assembly, and the turnover driving assembly controls the turnover mechanism to turn over and drives the wheels to turn over by 90 degrees. According to the utility model, the problem of difficulty in disassembling and assembling the independent wheel of the low-floor railway vehicle is solved, the railway vehicle can be conveniently and daily maintained and overhauled, and the modular design is adopted, so that the cost is reduced, and the economical efficiency, the practicability, the operability and the maintainability are higher.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle wheel disassembly and assembly auxiliary devices, in particular to a rail vehicle wheel disassembly and assembly device. Background Art

[0002] Among urban rail transit vehicles, there is a type of low-floor tram (usually the passenger compartment floor is 300-400mm away from the rail surface). The wheel assembly process of this type of vehicle is different from the traditional rail vehicle wheel set. It adopts an independent wheel set structure and is an axleless structure. Each elastic wheel is matched with a short axle to form an independent wheel axle combination. Two independent wheel axle combinations are matched with the axle bridge to form a wheel set. This structural design makes the overall layout of the bogie more compact and the space utilization rate higher, which can effectively reduce the height of the vehicle floor surface.

[0003] The wheels in this wheel set are low-rigidity elastic wheels with built-in rubber elements, and their radial stiffness is about 20±25% KN / mm. This lower radial stiffness match can better filter out the vibration transmission between the wheel and the rail, play the role of a primary suspension in the traditional rail transit vehicle structure, and improve riding comfort. However, the service life of the rubber element is generally 5 years or 300,000 kilometers. After exceeding the use time or use distance, it needs to be replaced to ensure the safe driving of the rail vehicle. When the rubber element is replaced, the wheel needs to be removed from the bogie. At this time, necessary auxiliary devices are required to facilitate the removal and installation of the wheel. In order to solve the problem of disassembly and installation of elastic wheels, the utility model proposes a disassembly and assembly device suitable for elastic vehicles of low-floor rail vehicles. Utility Model Content

[0004] The utility model aims to provide a rail vehicle wheel disassembly and assembly device, which solves the problem of disassembly and assembly of independent wheels of low-floor rail vehicles, facilitates daily maintenance and overhaul of rail vehicles, and adopts a modular design, which reduces costs while also having high economy, practicality, operability and maintainability.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A rail vehicle wheel disassembly and assembly device comprises a gantry and a lifting mechanism and a turning mechanism arranged on the gantry;

[0007] A gantry is placed on a plane, and the gantry includes two vertical beams, two longitudinal beams, a first transverse beam, and a second transverse beam. The vertical beam is vertically arranged at one end of the longitudinal beam through a cover plate, and the two ends of the first transverse beam are fixedly connected to the tops of the two vertical beams, and the two ends of the second transverse beam are fixedly connected to one end of the two longitudinal beams close to the vertical beams;

[0008] A lifting mechanism, the lifting mechanism is connected with a lifting drive assembly, the lifting mechanism is vertically slidably installed on the gantry, the lifting mechanism is connected with a flipping mechanism, driving the flipping mechanism to move up and down along the gantry, the lifting mechanism is a symmetrical structure, the lifting mechanism includes a vertical plate, a second hydraulic cylinder, a support rod and an adjustment plate, the vertical plate can be slidably arranged on the vertical beam, the support rod is arranged between the two vertical plates, and both ends of the support rod are rotatably connected to the vertical plate, and adjustment plates are fixedly arranged at both ends of the support rod, and the side of the adjustment plate close to the end of the support rod contacts the vertical plate, the second hydraulic cylinder is fixedly arranged on the vertical plate, and the movable end of the second hydraulic cylinder is connected to the support rod through a connecting plate;

[0009] A flipping mechanism is installed on the lifting mechanism, and a fixing component for fixing the wheel is provided on the flipping mechanism; the flipping mechanism is connected to a flipping drive component, and the flipping drive component controls the flipping of the flipping mechanism to drive the wheel to flip 90 degrees. The flipping mechanism includes a mounting frame, a frame, a supporting arc plate and a pressure plate. One side of the mounting frame is set on the support rod through a fixing piece, and the other side of the mounting frame is fixedly connected to the lower end of the frame. A plurality of supporting arc plates for supporting the wheel are provided on the left and right sides of a side of the frame facing away from the mounting frame, and fixing components are provided at both ends of the top and bottom of the side of the frame facing away from the mounting frame.

[0010] As a preferred technical solution, the fixing assembly includes a pressure plate, a sleeve and an adjusting rod. The sleeve is fixed on the frame, the adjusting rod is threaded in the sleeve, and both ends of the adjusting rod pass through the sleeve and are located on both sides of the frame. The end of the adjusting rod close to the supporting arc plate is rotatably connected to the pressure plate.

[0011] As a preferred technical solution, an installation cavity is provided on the outer side of the vertical beam of the gantry, and vertical strip holes are opened on the two side walls connecting the installation cavity and the vertical beam. A hydraulic cylinder is fixedly installed in the installation cavity, and a sliding part is provided at the movable end of the hydraulic cylinder. The sliding part is located in the strip hole, and the movable end of the hydraulic cylinder is extended and retracted to drive the sliding part to move up and down in the strip hole.

[0012] As a preferred technical solution, the sliding member is connected to the vertical plate through a pulley assembly, and the pulley assembly includes a pulley and a pulley block. Two pull ropes are fixedly connected to the sliding member, and the other ends of the two pull ropes are fixedly connected to the two vertical plates through the pulley block respectively.

[0013] As a preferred technical solution, the cross-section of the support rod of the lifting mechanism is square, and the cross-section of the connection between the two ends of the support rod and the vertical plate is circular.

[0014] As a preferred technical solution, the fixing piece is a square structure with an opening at the bottom, and the square structure matches the support rod, so that the fixing piece can be inserted into the support rod and fixed with bolts.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, a modular design is adopted. After the main structure is manufactured, standard parts are selected for overall assembly and use, which is convenient for subsequent maintenance of the device. If a part is damaged, only the damaged part can be replaced, reducing the cost of use.

[0017] 2. The utility model meets the requirements of disassembly and installation of independent wheels of low-floor rail vehicles, can ensure that the wheels do not slip or fall off, and only two workers are needed to perform the disassembly and installation work, which not only improves work efficiency but also reduces labor costs.

[0018] 3. In the utility model, the device is universal and can meet the needs of disassembly and assembly of independent wheels of various types of low-floor rail vehicles, thus reducing investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the gantry structure of the utility model;

[0022] Figure 3 This is a cross-sectional view of the gantry of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the lifting mechanism of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the flipping mechanism of the utility model;

[0025] The reference numerals are as follows:

[0026] Gantry 1, lifting mechanism 2, turning mechanism 3, vertical beam 4, longitudinal beam 5, cross beam 1 6, cross beam 2 7, installation cavity 8, strip hole 9, hydraulic cylinder 1 10, vertical plate 11, hydraulic cylinder 2 12, support rod 13, connecting plate 14, adjustment plate 15, mounting frame 16, fixing part 17, frame 18, supporting arc plate 19, pressure plate 20, sleeve 21, adjustment rod 22, pull rope 23. DETAILED DESCRIPTION

[0027] 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.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] Example

[0031] like Figure 1-5 As shown, a rail vehicle wheel disassembly and assembly device comprises a gantry 1 and a lifting mechanism 2 and a turning mechanism 3 arranged on the gantry 1.

[0032] It is worth mentioning that the gantry 1 is provided to support the entire device and the wheels, the lifting mechanism 2 is provided to realize the movement of the wheels in height, and the flipping mechanism 3 is provided to support the wheels. When the wheels are installed, the wheels can be flipped 90° from a flat state to a vertical installation state. When the wheels are disassembled, the wheels can be flipped 90° from a vertical installation state to a flat state.

[0033] The gantry 1 includes two vertical beams 4, two longitudinal beams 5, a cross beam 1 6 and a cross beam 2 7. The vertical beam 4 is vertically arranged at one end of the longitudinal beam 5 through a cover plate, both ends of the cross beam 1 6 are fixedly connected to the tops of the two vertical beams 4, and both ends of the cross beam 2 7 are fixedly connected to one end of the two longitudinal beams 5 close to the vertical beam 4.

[0034] The lifting mechanism 2 is connected with a lifting drive assembly, and the lifting mechanism 2 includes a vertical plate 11, a second hydraulic cylinder 12, a support rod 13 and an adjustment plate 15. The vertical plate 11 can be slidably arranged on the vertical beam 4, the support rod 13 is arranged between the two vertical plates 11, and both ends of the support rod 13 are rotatably connected to the vertical plate 11, and the adjustment plates 15 are fixedly arranged at both ends of the support rod 13. The side of the adjustment plate 15 close to the end of the support rod 13 is in contact with the vertical plate 11, and the second hydraulic cylinder 12 is fixedly arranged on the vertical plate 11, and the movable end of the second hydraulic cylinder 12 is connected to the support rod 13 through the connecting plate 14. When the movable end of the second hydraulic cylinder 12 is extended and retracted, it will drive the support rod 13 to rotate through the connecting plate 14, and then realize the flipping of the flip mechanism 3 through the support rod 13.

[0035] The flipping mechanism 3 is connected to a flipping driving component for controlling the flipping of the flipping mechanism 3 , and the flipping driving component is a hydraulic cylinder 12 and a support rod 13 .

[0036] The flipping mechanism 3 includes a mounting frame 16, a frame 18, a supporting arc plate 19 and a pressure plate 20. One side of the mounting frame 16 is set on the support rod 13 through a fixing member 17, and the other side of the mounting frame 17 is fixedly connected to the lower end of the frame 18. A plurality of supporting arc plates 19 for supporting wheels are evenly arranged on the left and right sides of the side of the frame 18 facing away from the mounting frame 17, and fixing components are arranged at both ends of the top and bottom of the side of the frame 18 facing away from the mounting frame 17.

[0037] The sleeve 21 is fixedly arranged on the frame 18, the adjusting rod 22 is threadedly connected in the sleeve 21, and the two ends of the adjusting rod 22 pass through the sleeve 21 and are located on both sides of the frame 18. One end of the adjusting rod 22 is rotatably connected with a pressure plate 20. When the pressure plate 20 is in use, the outer wheel surface of the wheel is located in the supporting arc plate 19, the pressure plate 20 is close to the outer side of the wheel, and the inner side of the wheel is close to the frame 18, so that the pressure plate 20 completes the fastening of the wheel; when the adjusting rod 22 is rotated, since the adjusting rod 22 is connected to the pressure plate 20, the distance between the pressure plate 20 and the frame 18 can be changed, completing the two operations of fastening the wheel and avoiding and facilitating the removal of the wheel.

[0038] The flipping mechanism 3 is fixed on the lifting mechanism 2 by the fixing part 17 on the mounting frame 16. The frame 18 and the supporting arc plate 19 can bear the weight of the wheel. When the wheel is placed on the supporting arc plate 19, the pressure plate 20 is rotated toward the center of the wheel, and then the adjusting rod 22 is rotated to adjust the pressure plate 20 until the pressure plate 20 contacts the wheel. At this time, the pressure plate 20 fixes the wheel and can prevent the wheel from falling off the flipping mechanism 3.

[0039] In some feasible embodiments, the lifting drive assembly is a hydraulic cylinder 10 and a pulley assembly, and a mounting cavity 8 is provided on the outside of the gantry 1-vertical beam 4, and vertical strip holes 9 are provided on the two side walls where the mounting cavity 8 and the vertical beam 4 are connected. A hydraulic cylinder 10 is fixedly provided in the mounting cavity 8, and a sliding member is provided at the movable end of the hydraulic cylinder 10, and the sliding member is located in the strip hole 9 and is limited by the strip hole 9 so that the sliding member can only move up and down. The movable end of the hydraulic cylinder 10 is extended and retracted to drive the sliding member to move up and down in the strip hole 9. The sliding member is connected to the vertical plate 11, thereby driving the lifting mechanism 2 to move up and down.

[0040] In some feasible embodiments, the sliding member is connected to the vertical board 11 through a pulley assembly. The pulley assembly includes a pull rope 23 and a pulley block; two pull ropes 23 are fixedly connected to the sliding member, and the other ends of the two pull ropes 23 are respectively fixedly connected to the two vertical boards 11 through the pulley block. Specifically, the pull rope 23 goes upward from the sliding member, then passes around the pulley block and connects to the vertical board 11 below.

[0041] Specifically, the lifting mechanism 2 is moved up and down by setting a hydraulic cylinder 10. When the movable end of the hydraulic cylinder 10 is extended or retracted, it drives the sliding member to move up and down in the strip hole 9. The strip hole 9 limits the sliding member to avoid misalignment when moving up and down. When the sliding member moves, it pulls two pull ropes 23, and the two pull ropes 23 drive the lifting mechanism 2 to move up and down.

[0042] In some feasible embodiments, the cross section of the support rod 13 of the lifting mechanism 2 is square, and the cross section of the connection between the two ends of the support rod 13 and the vertical plate 11 is circular.

[0043] In some feasible embodiments, the fixing member 17 is a square structure with an opening at the bottom, and the square structure matches the support rod 13, so that the fixing member 17 can be inserted into the support rod 13 and fixed with bolts.

[0044] Specifically, the middle portion of the support rod 13 is designed as a rectangular parallelepiped structure to facilitate the installation of the fixing member 17 , and the two ends are designed as cylinders to achieve the rotation of the support rod 13 .

[0045] When removing the wheel, start the hydraulic cylinder 10 to adjust the height of the lifting mechanism 2 until the frame 18 of the flipping mechanism 3 is facing the wheel, move the device until the wheel contacts the frame 18 and the supporting arc plate 19, adjust the pressure plate 20 to fix the wheel, then release the connection between the wheel and the rail vehicle, and then start the hydraulic cylinder 12 to make the flipping mechanism 3 drive the wheel to flip 90° from a vertical state to a flat state, start the hydraulic cylinder 10 to adjust the height of the lifting mechanism 2 until it is placed on the ground, and finally remove the device.

[0046] When installing the wheel, first make the flipping mechanism 3 level with the ground, start the hydraulic cylinder 10 to adjust the height of the lifting mechanism 2 until the flipping mechanism 3 contacts the wheel placed flat on the ground, frame the wheel in the supporting arc plate 19, adjust the pressure plate 20 to fix the wheel, start the hydraulic cylinder 12, so that the flipping mechanism 3 flips the wheel 90° from a flat state to a vertical installation state, start the hydraulic cylinder 10 to adjust the height of the lifting mechanism 2 to the wheel installation height, install and connect the wheel to the rail vehicle, and finally remove the device.

[0047] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. So far, each embodiment of the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here. The scope of the present disclosure is defined by the attached claims.

Claims

1. A rail vehicle wheel disassembly and assembly device, characterized in that: It comprises a gantry (1), and a lifting mechanism (2) and a turning mechanism (3) arranged on the gantry (1); A gantry (1) is placed on a plane, the gantry (1) comprising two vertical beams (4), two longitudinal beams (5), a first crossbeam (6) and a second crossbeam (7), the vertical beam (4) being vertically arranged at one end of the longitudinal beam (5) through a cover plate, the two ends of the first crossbeam (6) being fixedly connected to the tops of the two vertical beams (4), and the two ends of the second crossbeam (7) being fixedly connected to one end of the two longitudinal beams (5) close to the vertical beam (4); A lifting mechanism (2), wherein the lifting mechanism (2) is connected to a lifting drive assembly, the lifting mechanism (2) is vertically slidably installed on the gantry (1), the lifting mechanism (2) is connected to a flipping mechanism (3), and drives the flipping mechanism (3) to move up and down along the gantry (1), the lifting mechanism (2) comprises a vertical plate (11), a second hydraulic cylinder (12), a support rod (13) and an adjustment plate (15), the vertical plate (11) is slidably arranged on the vertical beam (4), the support rod (13) is arranged between the two vertical plates (11), and both ends of the support rod (13) are rotatably connected to the vertical plate (11), and the adjustment plates (15) are fixedly arranged at both ends of the support rod (13), and the side surface of the adjustment plate (15) close to the end of the support rod (13) contacts the vertical plate (11), the second hydraulic cylinder (12) is fixedly arranged on the vertical plate (11), and the movable end of the second hydraulic cylinder (12) is connected to the support rod (13) through a connecting plate (14); A turning mechanism (3) is mounted on the lifting mechanism (2), and a fixing assembly for fixing the wheel is provided on the turning mechanism (3); the turning mechanism (3) is connected to a turning drive assembly, and the turning drive assembly controls the turning of the turning mechanism (3) to drive the wheel to turn 90 degrees. The turning mechanism (3) comprises a mounting frame (16), a frame (18), a supporting arc plate (19) and a pressing plate (20); one side of the mounting frame (16) is arranged on the supporting rod (13) through a fixing member (17), and the other side of the mounting frame (16) is fixedly connected to the lower end of the frame (18); a plurality of supporting arc plates (19) for supporting the wheel are evenly provided on the left and right sides of a side of the frame (18) facing away from the mounting frame (16); and fixing assemblies are provided at both ends of the top and bottom of a side of the frame (18) facing away from the mounting frame (16).

2. A rail vehicle wheel disassembly and assembly device according to claim 1, characterized in that: The fixing assembly comprises a pressure plate (20), a sleeve (21) and an adjusting rod (22); the sleeve (21) is fixedly arranged on the frame (18); the adjusting rod (22) is threadedly connected in the sleeve (21); and both ends of the adjusting rod (22) pass through the sleeve (21) and are located on two sides of the frame (18); one end of the adjusting rod (22) close to the supporting arc plate (19) is rotatably connected to the pressure plate (20).

3. A rail vehicle wheel disassembly and assembly device according to claim 1, characterized in that: A mounting cavity (8) is provided on the outer side of a vertical beam (4) of the gantry (1), and vertical strip holes (9) are provided on the two side walls connecting the mounting cavity (8) and the vertical beam (4). A hydraulic cylinder (10) is fixedly arranged in the mounting cavity (8), and a sliding member is provided at the movable end of the hydraulic cylinder (10), and the sliding member is located in the strip hole (9). The movable end of the hydraulic cylinder (10) is extended and retracted to drive the sliding member to move up and down in the strip hole (9).

4. A rail vehicle wheel disassembly and assembly device according to claim 3, characterized in that: The sliding member is connected to the vertical plate (11) via a pulley assembly, wherein the pulley assembly comprises a pulley (23) and a pulley block, and two pulleys (23) are fixedly connected to the sliding member, and the other ends of the two pulleys (23) are respectively fixedly connected to the two vertical plates (11) via the pulley block.

5. The rail vehicle wheel disassembly and assembly device according to claim 1, characterized in that: The cross section of the support rod (13) of the lifting mechanism (2) is square, and the cross section of the connection between the two ends of the support rod (13) and the vertical plate (11) is circular.

6. A rail vehicle wheel disassembly and assembly device according to claim 1, characterized in that: The fixing piece (17) is a square structure with an opening at the bottom, and the square structure matches the support rod (13), so that the fixing piece (17) can be inserted into the support rod (13) and fixed with bolts.

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