Elastic wheel hub dismounting and mounting device

Abstract

The utility model provides an elastic wheel hub dismounting and mounting device, the elastic wheel comprises a hub, a compression ring, a rubber block and a wheel center, the dismounting and mounting device comprises a mounting ring, a rubber block, a rubber block and a wheel center, the mounting ring is assembled and connected with the compression ring during dismounting and mounting; one end of the clamping mechanism is assembled and fixed with the mounting ring, and the clamping mechanism can rotate around a fixed point; an output shaft of the driving mechanism penetrates through the mounting ring and then is fixed with the wheel center; during press fitting, the mounting ring is placed on the pressing ring, the other end of the clamping mechanism abuts against the inner side face of the hub, the hub, the rubber block and the pressing ring are kept in a matched state, the interference force between the wheel center and the pressing ring is overcome through pressure generated by the driving mechanism, the pressing ring is pressed on the wheel center, and the wheel center and the pressing ring are pressed. The rubber block and the hub are assembled in place; in the dismounting process, the mounting ring is positioned and clamped on the pressing ring through the clamping mechanism, the dismounting screw on the pressing ring is screwed, the interference force of the wheel center and the pressing ring is overcome, and the wheel center and the pressing ring are separated.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical maintenance, in particular to a disassembly and assembly device for an elastic wheel hub. Background Technique

[0002] The elastic wheel is an important part of the bogie of a low-floor tram. The elastic wheel consists of four parts: a wheel hub, a rubber block, a pressing ring, and a wheel center. The pressing ring is press-fitted on the wheel center to form a V-shaped groove, which cooperates with the V-shaped rubber block and the V-shaped groove on the inner side of the hub, so that the hub, the wheel center, the rubber block, and the pressing ring are fixed to each other. Since the wheel will wear during running, when the elastic wheel wears to the limit, the hub of the elastic wheel needs to be replaced to ensure the safety of the wheel-rail relationship during vehicle operation. Usually, when replacing the elastic wheel hub, the bogie axle bridge needs to be separated; at the same time, since there is an interference fit between the wheel center and the pressing ring of the elastic wheel, the elastic wheel needs to be transported to a large pressing device for assembly of the elastic wheel. This process results in low efficiency of hub replacement and high transportation costs. And there are certain quality risks in the disassembly and assembly of the bogie. Therefore, it is necessary to make a device with a certain portability and capable of meeting the replacement of the elastic wheel hub without separating the frame axle bridge to solve the above problems. Content of the Utility Model

[0003] The main purpose of the utility model is to solve the above problems and deficiencies, and provide a disassembly and assembly device for an elastic wheel hub, which directly assembles and connects the disassembly and assembly device with the wheel by using an installation ring and a clamping mechanism, without the need to add a support mechanism, has a simple structure, and can complete the disassembly and assembly of the elastic wheel without separating the frame and the axle bridge.

[0004] To achieve the purpose of the utility model, the utility model provides a disassembly and assembly device for an elastic vehicle hub, and adopts the following technical solutions:

[0005] A disassembly and assembly device for an elastic wheel hub, the elastic wheel includes a hub, a pressing ring, a rubber block and a wheel center, and the disassembly and assembly device includes:

[0006] An installation ring, which is assembled and connected with the pressing ring during disassembly and assembly;

[0007] A clamping mechanism, one end of which is assembled and fixed with the installation ring and can rotate around a fixed point;

[0008] A driving mechanism, including a relay screw, and the tension screw passes through the installation ring and is fixed with the wheel center;

[0009] During press-fitting, the mounting ring is placed on the pressing ring, and the other end of the clamping mechanism presses against the inner side of the hub, so that the hub, the rubber block and the pressing ring are kept in a mating state. The pressure generated by the driving mechanism overcomes the interference force between the wheel center and the pressing ring, presses the pressing ring onto the wheel center, and the rubber block and the hub are assembled in place. During disassembly, the mounting ring is positioned and clamped on the pressing ring through the clamping mechanism, and the disassembly screw on the pressing ring is screwed to overcome the interference force between the wheel center and the pressing ring, so that the wheel center and the pressing ring are separated.

[0010] Furthermore, a positioning pressing block is also arranged at the mounting ring.

[0011] Furthermore, the outer shape of the mounting ring is an irregular circle design that can avoid interference with the bogie frame.

[0012] Furthermore, a process bolt through-hole for disassembling the hub is arranged on the mounting ring.

[0013] Furthermore, a press-fitting bolt through-hole for connecting the wheel center and the driving mechanism during press-fitting the hub is arranged on the mounting ring.

[0014] Furthermore, an installation bolt through-hole is arranged on the mounting ring when the pressing ring fastening bolt passes through the mounting ring and is installed on the wheel center during press-fitting the hub.

[0015] Furthermore, the angle between adjacent clamping arms is set according to the structure of the bogie, so that the clamping arms will not interfere with the bogie frame.

[0016] Furthermore, a clamping bolt for adjusting the clamping position is arranged at one end of the clamping arm that presses against the inner side of the hub.

[0017] Furthermore, the driving device includes a plurality of hydraulic cylinders, which are evenly distributed on the mounting ring, and the output end of each hydraulic cylinder is connected to the wheel center through a tension screw.

[0018] Furthermore, the driving device also includes an electric hydraulic pump. The high-pressure oil pipe of the electric hydraulic pump is connected to the input end of the splitter, and the output ends of the splitter are respectively communicated with the input ends of each hydraulic cylinder and the oil injection holes reserved on the pressing ring.

[0019] In summary, compared with the prior art, an elastic wheel hub disassembly and assembly device provided by the present utility model has the following technical advantages:

[0020] 1. It can realize the replacement of the wheel hub without separating the frame axle, improving the hub replacement efficiency;

[0021] 2. Reducing the cost of hub replacement;

[0022] 3. Without a supporting device, the overall structure is simple and portable, and the wheel hub can be replaced under different working conditions;

[0023] 4. The device has a simple structure, can meet the requirements of different operating environments, realizes mobile operation, can complete the disassembly and assembly operations of the elastic wheel without disassembling the wheel set on site, the operation process is stable and reliable, has high safety, and the operation method is simple. Brief Description of the Drawings

[0024] Figure 1 : Top view schematic diagram of the overall structure of a device for disassembling and assembling the hub of an elastic wheel provided by the present utility model;

[0025] Figure 2 : Structural cross-sectional view of a device for disassembling and assembling the hub of an elastic wheel provided by the present utility model under the disassembly condition;

[0026] Figure 3 : Side view schematic diagram of the overall structure of a device for disassembling and assembling the hub of an elastic wheel provided by the present utility model;

[0027] Figure 4 : Figure 1 Enlarged view of part A in

[0028] Figure 5 : Structural cross-sectional view of a device for disassembling and assembling the hub of an elastic wheel provided by the present utility model under the assembly condition;

[0029] Figure 6 : Structural cross-sectional view of a device for disassembling and assembling the hub of an elastic wheel provided by the present utility model under the oil injection condition;

[0030] Figure 7 : Schematic diagram of the connection structure between a device for disassembling and assembling the hub of an elastic wheel provided by the present utility model and an electric hydraulic pump under the assembly and oil injection conditions.

[0031] Among them, the clamping bolt 1, the clamping arm 2, the mounting ring 3, the tension screw 4, the hydraulic cylinder 5, the gasket 6, the locking nut 7, the protective cover 8, the electric hydraulic pump 9, the quick connector 10, the high-pressure oil pipe 11, the splitter 12, the high-pressure oil nozzle 13, the disassembly bolt 14, the positioning cushion block 15, the clamping arm switch 16, the pressing ring 17, the rubber block 18, the wheel hub 19, the wheel center 20, the positioning pin 21.

[0032] It should be noted that these drawings and text descriptions 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 Embodiment

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments 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 intended to limit the scope of the present utility model.

[0034] 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 accompanying 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.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 circumstances.

[0036] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] The present utility model provides a disassembly and assembly device for an elastic wheel hub. The elastic wheel includes a hub 19, a pressure ring 17, a rubber block 18, and a wheel center 20. The disassembly and assembly device includes:

[0038] An installation ring 3, which is assembled and connected to the pressure ring 17 during disassembly and assembly;

[0039] A clamping mechanism, one end of which is fixedly assembled with the installation ring and can rotate around a fixed point;

[0040] A driving mechanism, which includes a tension screw 4. The relay screw 4 passes through the installation ring and is fixed to the wheel center 20;

[0041] During press-fitting, the mounting ring is press-fitted onto the pressing ring 17, and the other end of the clamping mechanism abuts against the inner side of the hub 19, so that the hub 19, the rubber block 18 and the pressing ring 17 are kept in a mating state. The pressure generated by the driving mechanism overcomes the interference force between the wheel center 20 and the pressing ring 17, and presses the pressing ring 17 onto the wheel center 20, and the rubber block 18 and the hub 19 are assembled in place. During disassembly, the mounting ring is positioned and clamped on the pressing ring 17 through the clamping mechanism, and the disassembly screw on the pressing ring 17 is screwed to overcome the interference force between the wheel center 20 and the pressing ring 17, so that the wheel center 20 and the pressing ring 17 are separated.

[0042] A dismounting and mounting device for an elastic wheel hub 19 provided by the present utility model. In the present utility model, as Figure 7 shown, the elastic wheel includes a hub 19, a pressing ring 17, a rubber block 18 and a wheel center 20. The dismounting and mounting device includes a mounting ring 3. As Figure 1 shown, the mounting ring 3 is generally a ring structure. In this embodiment, the mounting ring is an irregular circular ring structure, so that when the hub 19 is replaced, the mounting ring will not interfere with the bogie frame. When changing the wheel without separating the frame axle bridge, the distance between the wheel and the frame is small. According to the overall structural characteristics of the bogie frame, especially the structural characteristics of the bogie frame at the dismounting stroke of the hub 19, the outer contour of the mounting ring 3 is set as an irregular ring to avoid interference between the hub 19 dismounting and mounting device and the bogie frame.

[0043] On the overall structure of the mounting ring 3, a process bolt through-hole for dismounting the hub 19 is reserved. Through this process through-hole, the original screw hole on the pressing ring 17 is directly utilized, and the mounting ring 3 and the pressing ring 17 are assembled and connected by bolts, which is convenient for applying force to the pressing ring 17 during the dismounting process. During the dismounting and mounting process, there is no need to set a support structure for the mounting ring 3, which simplifies the overall structure.

[0044] On the overall structure of the mounting ring 3, a press-fitting bolt through-hole for connecting the wheel center 20 and the driving mechanism during press-fitting the hub 19 is reserved. The output shaft of the driving mechanism passes through the press-fitting bolt through-hole to assemble and connect the driving mechanism, the mounting ring 3 and the wheel center 20.

[0045] On the overall structure of the mounting ring 3, an installation bolt through-hole is reserved when the fastening bolt of the pressing ring 17 passes through the mounting ring and is installed on the wheel center 20 during press-fitting the hub 19. The fastening bolt of the pressing ring 17 is an original structure on the wheel. By borrowing this bolt, the mounting ring and the wheel center 20 are assembled and connected. There is no need to additionally carry fastening bolts during the press-fitting process, which is more beneficial to the portability of the overall device and reduces the material cost of the tooling.

[0046] It should be noted that all three types of through holes are reserved on the mounting ring 3. In actual applications, according to the mating relationship between the mounting ring 3 and the pressure ring 17 and the positions of the corresponding bolt holes on the pressure ring 17, the three through holes can be combined into one or two, that is, any one, two or three bolt through holes among the three through holes are set, without restrictions or requirements.

[0047] As Figures 1 to 7 shown, the mounting ring is provided with a positioning pin 21 and a convex platform, so as to cooperate with the pressure ring 17. The positioning pin 21 corresponds to the process hole on the pressure ring 17, and the convex platform corresponds to the corresponding pressing structure on the pressure ring 17, so that the mounting ring 3 and the pressure ring 17 are initially positioned, and the relative positions of the mounting ring 3 and the pressure ring 17 are limited. In this embodiment, a positioning pad 14 is provided on the mounting ring 3.

[0048] The disassembly and assembly device further includes a clamping mechanism. As Figures 2 to 7 shown, one end of the clamping mechanism is assembled and connected to the mounting ring 3 and can rotate around a fixed point, and the other end is pressed and assembled with the hub 19 during disassembly and assembly to clamp the hub 19, so that the three components of the hub 19, the rubber block 18 and the pressure ring 17 are kept in a mating state. Specifically, as Figures 1 to 7 shown, the clamping mechanism includes a clamping arm 2. The clamping arm 2 is generally L-shaped. As Figure 2 and Figure 3 shown in the orientation, the horizontal arm of the clamping arm 2 is assembled and fixed to the side wall of the mounting ring 3, and the vertical arm is used to press and contact the hub 19.

[0049] Furthermore, in this embodiment, the clamping mechanism further includes a mounting bracket (not shown in the figure) fixed on the outer peripheral wall of the mounting ring 3. The bottom of the mounting bracket is integrally formed with the mounting ring 3 or assembled and fixed by other means and extends in the outer peripheral direction of the mounting ring 3, and the top is pivotally connected to the horizontal arm of the clamping arm 2. For example, a ball hinge is provided at the end of the horizontal arm, and the ball hinge is used to connect to the top of the mounting bracket and can rotate around the top of the mounting bracket. Or a mounting shaft is provided at the top of the mounting bracket, and a shaft hole is provided at the end of the horizontal arm, so that the horizontal arm is assembled and connected to the mounting shaft and can rotate around the mounting shaft.

[0050] A limiting structure is provided on the mounting bracket to limit the flipping angle of the clamping arm 2. Furthermore, the limiting structure includes a lower limiting block to limit the downward ( Figure 2 and Figure 3 in the figure, rotating towards the median line is downward) flipping angle of the clamping arm 2, and further includes an upper limiting block to limit the upward ( Figure 2 and Figure 3 in the figure, rotating away from the median line is downward) flipping angle of the clamping arm 2. Furthermore, a clamping arm switch 16 is also provided at the connection between the clamping arm 2 and the mounting bracket to prevent the clamping arm 2 from flipping in the reverse direction during operation.

[0051] When the wheel hub 19 is clamped, the spacing between adjacent clamping arms 2, that is, the angle between adjacent clamping arms 2, is set according to the structure of the bogie frame, so that when the wheel hub 19 is replaced, the clamping arms 2 will not interfere with the bogie frame. At the same time, the length of the clamping arms 2 can fit the overall width of the existing specifications of wheels, especially the wheel center 20 and the wheel hub 19, improving the applicable range of the device. For this purpose, the clamping mechanism further includes a clamping bolt 1, which is mainly used to assist the clamping arms to clamp the tyre, the pressure ring 17, and the rubber block 18. At the end of the vertical arm of the clamping arm 2, a screw hole is also provided. The end of the clamping bolt 1 passes through the screw hole and presses against the inner side surface ( Figure 2 the left end face in

[0052] In this embodiment, there are multiple clamping mechanisms, such as four, evenly distributed on the mounting ring 3, and during the disassembly and assembly process, force is evenly applied to the wheel hub 19. As Figure 1 shown, there are four clamping mechanisms on the mounting ring 3, divided into two groups. In each group, the angle between adjacent two clamping mechanisms, that is, the clamping arms 2, is 60°, and the angle between the two adjacent groups is 120°.

[0053] Through various bolt through-holes reserved on the mounting hole 3 as described above, the mounting ring, the wheel center 20, and the wheel hub 19 are assembled together. During the disassembly and assembly process, force is applied to the wheel through the driving mechanism, so as to perform corresponding assembly or disassembly operations on the wheel hub 19, the wheel center 20, and the pressure ring 17.

[0054] In this embodiment, the driving mechanism applies force to overcome the interference fit force between the wheel center 20 and the pressure ring 17, separates the elastic wheel center 20 and the pressure ring 17, and completes the disassembly of the elastic wheel, or pushes the pressure ring 17 to move towards the wheel center 20 direction to complete the assembly operation of the elastic wheel.

[0055] The driving mechanism includes a hydraulic cylinder 5. As described above, the hydraulic cylinder 5 is connected to the wheel center 20 through the press-fitting bolt through-hole reserved on the mounting ring 3, that is, the output shaft of the hydraulic cylinder 5 passes through the press-fitting bolt through-hole on the mounting ring 3 and is connected to the wheel center 20. Further, in this embodiment, as Figures 2 to 7 shown, a tension bolt 4 is connected to the output shaft of the hydraulic cylinder 5. The tension bolt 4 passes through the press-fitting bolt through-hole and is connected to the original bolt through-hole on the wheel center 20, assembling the hydraulic cylinder 5, the mounting ring 3, and the wheel center 20 together. The hydraulic cylinder 5 is fixed at the front end of the mounting ring 3, and the tension screw 4 passes through the mounting ring 3 and is fixed on the wheel center 20. The pressure generated by the cylinder overcomes the interference fit force between the wheel center 20 and the pressure ring 17, and presses the pressure ring 17 onto the wheel center 20.

[0056] To apply a balanced force to the wheel center 20, in this embodiment, there are multiple hydraulic cylinders 5, such as 4. The press-fitting bolt through-holes are evenly arranged on the mounting ring 3. Preferably, the number of hydraulic cylinders 5 is the same as that of the clamping mechanisms. Preferably, a hydraulic cylinder 5 is provided at the center position between adjacent two clamping mechanisms. In practical applications, as Figure 1 shown, the arrangement position of the hydraulic cylinders 5 on the mounting ring 3 needs to fully avoid the above-mentioned reserved mounting holes.

[0057] As Figures 5 to 7 shown, a protective cover 8 is sleeved outside the hydraulic cylinder 5 to prevent damage to the hydraulic cylinder 5 during use. The protective cover 8 is sleeved and connected with the hydraulic cylinder 5. A gasket 6 and a locking nut 7 are also provided at the top of the hydraulic cylinder 5.

[0058] All the hydraulic cylinders 5 act simultaneously to apply force to the mounting ring 3 and the wheel center 20. To avoid delays and uneven force application in the actions of the hydraulic cylinders 5, in this embodiment, the driving mechanism further includes an electric hydraulic pump 9. The high-pressure oil pipe 11 at the output end of the electric hydraulic pump 9 is connected to each hydraulic pump through a splitter 12, so that each hydraulic pump applies the same pressure synchronously. Specifically, the input end of the splitter 12 is connected to the high-pressure oil pipe 11 at the output end of the electric hydraulic pump 9, and the oil pipe at the output end is connected to the hydraulic cylinder 5 through a quick connector 10.

[0059] The electric hydraulic pump 9 provides hydraulic pressure to push the hydraulic cylinder 5 to act to overcome the interference force between the pressing ring 17 and the wheel center 20, achieving the effect of press-fitting the pressing ring 17 onto the wheel center 20. The splitter 12 evenly distributes the hydraulic pressure of a hydraulic pipeline to the four hydraulic cylinders 5, so that the four hydraulic cylinders 5 output the same thrust, ensuring that the action rate of the hydraulic cylinders 5 is consistent, and enabling the pressing ring 17 to be evenly press-fitted onto the wheel center 20.

[0060] Further, when the interference force between the pressing ring 17 and the wheel center 20 is large, or when there are phenomena such as rust and adhesion on the interference joint surface, it is necessary to inject lubricating oil between the pressing ring 17 and the wheel center 20. For this purpose, the pipeline at the output end of the splitter 12 is connected to the oil injection hole reserved on the pressing ring 17 through a high-pressure oil nozzle 13, and high-pressure hydraulic oil is injected into the interference joint surface using the high-pressure oil nozzle to reduce the interference force.

[0061] When injecting high-pressure hydraulic oil into the interference surface between the wheel center 20 and the pressing ring 17, the electric hydraulic pump should be operated by a professional. When the wheel tyre becomes loose from the wheel center 20, the electric hydraulic pump should be immediately shut down to stop oil supply.

[0062] The electric hydraulic pump 9, the high-pressure oil pipe 11, the splitter 12, the quick connector 10, and the high-pressure oil nozzle 13 are connected to form a hydraulic circuit system, providing a high-pressure oil path during disassembly and assembly operations and controlling the actions of the hydraulic cylinders 5.

[0063] During use, for example, in the process of disassembling the elastic wheel, as Figure 2 shown, the relative position between the mounting ring 3 and the pressure ring 17 is positioned by the positioning spacer 15. After the clamping arm 2 ( Figure 2 the upper middle part is in the non-flipped state, and the lower part includes the schematic diagrams of both flipped and non-flipped states) is flipped and abuts against the inner side surface of the hub 19 (the side away from the mounting ring), or the clamping bolt 1 is rotated so that the end surface of the clamping bolt 1 abuts against the inner side surface of the hub 19. The disassembly bolt 14 passes through the process bolt through-hole reserved on the mounting ring 3 and is assembled and connected to the original screw hole on the wheel center 20. The mounting ring 3 is positioned and clamped on the pressure ring 17 through the clamping arm 2 and the clamping bolt 1. By screwing the disassembly screw, the interference force between the wheel center 20 and the pressure ring 17 is overcome, so that the wheel center 20 and the pressure ring 17 of the elastic wheel are separated, and the disassembly of the elastic wheel is completed.

[0064] When the interference force between the wheel center 20 and the pressure ring 17 is large, or when rust, adhesion and other phenomena occur on the interference joint surface, the oil injection working condition can be entered, as Figure 6 and Figure 7 shown. In the oil injection working condition, high-pressure hydraulic oil can be injected into the interference joint surface through the oil injection hole reserved on the pressure ring 17 by using a high-pressure oil nozzle to reduce the interference force. At the same time, the disassembly screw is screwed to complete the disassembly of the elastic wheel.

[0065] As Figure 5 and Figure 7 shown, for the assembly working condition of the elastic wheel, the relative position between the mounting ring 3 and the pressure ring 17 is initially positioned by the positioning spacer 15. The clamping arm 2 is rotated and the clamping bolt 1 is tightened so that the mounting ring 3 is positioned and clamped on the horizontally placed hub 19 and the pressure ring 17. The whole mounting ring is lifted, and the tension screw 4 is passed through the press-fitting bolt through-hole reserved on the mounting ring 3. After the tension screw 4 is completely screwed in, it is rotated back 1 - 2 turns to prevent thread stripping. Then, the hydraulic cylinder 5, the gasket 6, the lock nut 7 and the protective cover 8 are assembled in sequence.

[0066] Start the electric hydraulic pump 9. The high-pressure oil generated by the electric hydraulic pump 9 pushes the hydraulic cylinder 5 to act, and the piston of the hydraulic cylinder ejects, so as to push the pressure ring 17 to move towards the wheel center 20 to complete the assembly operation of the elastic wheel.

[0067] Set the pressure of the electric hydraulic pump 9 to 45 Mpa - 50 Mpa and ensure that the pressure remains unchanged during the press-fitting process. If pressure drop occurs during the press-fitting process, additional pressure needs to be applied)

[0068] Pre-assemble 4 pieces of M12×65 socket head cap screws in the other mounting holes of the pressure ring 17 and set the torque to 50 Nm. After the pressure ring 17 is in place, after depressurization, remove the disassembly and assembly device. Assemble all the remaining M12×65 socket head cap screws in place.

[0069] In summary, compared with the prior art, the elastic wheel hub disassembly and assembly device provided by the present utility model has the following technical advantages:

[0070] 1. It can replace the wheel hub without separating the frame axle bridge, improving the hub replacement efficiency;

[0071] 2. Reduce the cost of hub replacement;

[0072] 3. Without a support device, the overall structure is simple and portable, and the hub can be replaced in different working sites;

[0073] 4. The device has a simple structure, can meet the requirements of different operating environments, realizes mobile operation, can complete the disassembly and assembly operations of elastic wheels on-site without disassembling the wheel set, the operation process is stable and reliable, has high safety, and the operation method is simple.

[0074] As described above, similar technical solutions can be derived in combination with the given solution content. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An elastic wheel hub disassembly and assembly device, wherein the elastic wheel comprises a hub, a pressing ring, rubber blocks and a wheel center, and is characterized in that: The disassembly and assembly device includes a mounting ring which is assembled and connected to the pressing ring during disassembly and assembly; a clamping mechanism, one end of which is fixedly assembled with the mounting ring and can rotate around a fixed point; a driving mechanism including a tension screw, and the tension screw passes through the mounting ring and is fixed to the wheel center; During press-fitting, the mounting ring is placed on the pressing ring, and the other end of the clamping mechanism abuts against the inner side of the wheel hub, so that the wheel hub, the rubber block and the pressing ring are kept in a mating state. The pressure generated by the driving mechanism overcomes the interference force between the wheel center and the pressing ring, and presses the pressing ring onto the wheel center, and the rubber block is assembled in place with the wheel hub. During disassembly, the mounting ring is positioned and clamped on the pressing ring through the clamping mechanism, and the disassembly screw on the pressing ring is screwed to overcome the interference force between the wheel center and the pressing ring, so that the wheel center and the pressing ring are separated.

2. The elastic wheel hub disassembly and assembly device according to claim 1, characterized in that: A positioning press block is also arranged at the mounting ring.

3. The elastic wheel hub disassembly and assembly device according to claim 1, characterized in that: The outer shape of the mounting ring is an irregular circle design that can avoid interference with the bogie frame.

4. The dismounting and mounting device for the elastic wheel hub according to claim 1, characterized in that: A process bolt through-hole is arranged on the mounting ring when disassembling the wheel hub.

5. The elastic wheel hub disassembly and assembly device according to claim 1, characterized in that: A press-fitting bolt through-hole for connecting the wheel center and the driving mechanism is arranged on the mounting ring when press-fitting the wheel hub.

6. The elastic wheel hub disassembly and assembly device according to claim 1, characterized in that: An installation bolt through-hole is arranged on the mounting ring when the pressing ring fastening bolt passes through the mounting ring and is installed on the wheel center during press-fitting of the wheel hub.

7. The dismounting and mounting device for the elastic wheel hub according to claim 1, characterized in that: The angle between two adjacent clamping mechanisms is set according to the structure of the bogie, so that the clamping mechanism will not interfere with the bogie frame.

8. The dismounting and mounting device for an elastic wheel hub according to claim 1, characterized in that: A clamping bolt for adjusting the clamping position is arranged at the end of the clamping mechanism that abuts against the inner side of the wheel hub.

9. An elastic wheel hub disassembly and assembly device according to any one of claims 1 to 8, characterized in that: The driving mechanism includes a plurality of hydraulic cylinders, which are evenly distributed on the mounting ring, and the output end of each hydraulic cylinder is connected to the wheel center through a tension screw.

10. An elastic wheel hub disassembly and assembly device according to claim 9, characterized in that: The driving mechanism further includes an electric hydraulic pump, the high-pressure oil pipe of the electric hydraulic pump is connected to the input end of the splitter, and the output ends of the splitter are respectively communicated with the input ends of each hydraulic cylinder and the oil injection holes reserved on the pressing ring.

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