Walking driving system disassembling device

Abstract

The utility model discloses a disassembling device for a walking driving system. The disassembling device comprises a supporting and fixing system, an ejection system and a locking and positioning system, the supporting and fixing system is arranged on the axial outer side face of the driving wheel and provides an acting point for the disassembling device. The ejection system comprises a telescopic part, and the telescopic part is installed on the supporting and fixing system and provides pressure for the disassembling device; the locking and positioning system comprises a first locking and positioning part and a second locking and positioning part; the first locking and positioning part is used for centering the telescopic part and a spline shaft in the driving wheel and then connecting and fixing the telescopic part and the spline shaft together; and the second locking and positioning part is used for connecting and fixing the supporting and fixing system and the driving wheel. The disassembling device is connected to the driving wheel and the spline shaft in an assembling mode, the driving wheel serves as an acting point, counter-acting force is transmitted to the bearing inner ring through the space ring, and therefore the bearing inner ring is separated by acting force which is equal to and opposite to the end face of the spline shaft, and the purpose of disassembling the walking driving system is achieved.

Description

Technical Field

[0001] The utility model relates to a disassembling device for a travel drive system, in particular to a disassembling device for a super-large excavation travel drive system, and belongs to the technical field of mechanical equipment installation. Background Art

[0002] The travel drive system of a super-large mining excavator includes a drive wheel, a floating seal, a spacer, a spline shaft, a bearing and a bearing seat. The bearing and the spline shaft have an interference fit. The inner bearing is assembled by heat-fitting, and the outer bearing is assembled by press-fitting. After assembly, the entire travel drive system is filled with lubricating oil. During the travel process, the sealing oil of the lubricating oil is realized by two pairs of floating seals. The half of the floating seal installed on the bearing seat is stationary, and the half installed on the drive wheel rotates. After the super-large mining excavator has been used for a period of time, the floating seal is severely worn and cannot play a sealing role. The travel drive system needs to be disassembled and replaced. The key to disassembling the travel drive system is the separation of the outer bearing and the spline shaft.

[0003] The traditional equipment and disassembly method is to use a hand jack to press the spline shaft out of the bearing. If this is not possible, flame cutting and other methods are used for disassembly.

[0004] Traditional equipment and disassembly methods have the following problems:

[0005] 1. Safety issues: the equipment is difficult to install and position, and the fixation is not secure, which may cause safety hazards such as falling, tipping over, and slipping.

[0006] 2. Efficiency issues: the power source of the equipment is a manual pump, the pressure required for disassembly is huge, the labor intensity of the operators is high, and the disassembly efficiency is low.

[0007] 3. Bearings and other related parts are easy to be damaged. Summary of the invention

[0008] In view of the deficiencies of the prior art, the utility model provides a disassembling device for a travel drive system. The disassembling device is securely connected to the drive wheel and the spline shaft by means of assembly, and the hydraulic pump station is used as the power source. The hollow oil cylinder applies pressure to the end face of the spline shaft, and at the same time, the driving wheel is used as the fulcrum, and the reaction force is transmitted to the inner ring of the bearing through the spacer, so that the inner ring of the bearing is separated by a force of equal magnitude and opposite to the end face of the spline shaft, thereby achieving the purpose of disassembling the travel drive system.

[0009] The utility model is implemented according to the following technical solutions:

[0010] A walking drive system disassembly device comprises a supporting and fixing system, an ejection system and a locking and positioning system; the supporting and fixing system is arranged on the axial outer side of a driving wheel to provide a fulcrum for the disassembly device; the ejection system comprises a telescopic component, which is installed on the side of the supporting and fixing system facing the driving wheel to provide pressure for the disassembly device; the locking and positioning system comprises a first locking and positioning component and a second locking and positioning component; the first locking and positioning component is used to align the telescopic component with a spline shaft in the driving wheel and then connect and fix the two together; the second locking and positioning component is used to connect and fix the supporting and fixing system to the driving wheel.

[0011] In some embodiments, the support and fixation system comprises:

[0012] The support beam is a box-shaped structure as a whole, and is provided with at least one through hole at the top and bottom thereof;

[0013] A connecting plate is used to fix the telescopic component and the support beam together through fasteners.

[0014] In some embodiments, the connecting plate is provided with a plurality of connecting holes; wherein, at least one connecting hole is coaxially arranged with the threaded hole provided on the axial surface of the telescopic component, and the telescopic component and the connecting plate are fixed together by short bolts; and at least one connecting hole is coaxially arranged with the light hole provided on the middle part of the support beam, and the support beam and the connecting plate are fixed together by long bolts and nuts.

[0015] In some embodiments, a middle portion of the support beam is provided with an avoidance hole coaxially arranged with the short bolt, so that the head of the short bolt can pass through the avoidance hole, so that the connecting plate can fit on the side of the support beam.

[0016] In some embodiments, the first locking and positioning component is a positioning sleeve with a circular plate structure, the positioning sleeve and the telescopic component are assembled together through a stop structure, and the positioning sleeve and the spline shaft are connected and fixed by fasteners.

[0017] In some embodiments, an axial flange structure extending toward the telescopic component is provided at the center of the positioning sleeve, and the axial flange structure is inserted into the groove at the front end of the telescopic component to form a stop structure; a circle of evenly distributed light holes is provided on the positioning sleeve around the flange structure, and the spline shaft is provided with a plurality of threaded holes coaxially corresponding to the light holes on the axial surface facing the positioning sleeve, and the positioning sleeve is fixedly connected to the spline shaft by a plurality of bolts.

[0018] In some embodiments, the second locking and positioning component includes:

[0019] A plurality of pull rods are arranged at the upper and lower parts of the telescopic component, one end of the pull rod passes through the support beam in the support and fixing system, and the other end of the pull rod is used to penetrate into the through hole on the driving wheel;

[0020] A first limiting component is fixed on the pull rod passing through the support beam. When a pulling force is applied to the pull rod in the direction of the driving wheel, the pull rod cannot be pulled out from the support beam under the action of the first limiting component;

[0021] The second limiting component is fixed on the pull rod passing through the driving wheel. When a pulling force is applied to the pull rod in the direction of the supporting beam, the pull rod cannot be pulled out from the driving wheel under the action of the second limiting component.

[0022] In some embodiments, the first limiting component is composed of a spacer and a nut; the spacer is mounted on the pull rod, and the nut is screwed onto the external thread at the end of the pull rod; the second limiting component is a limiting plate, and an internal threaded hole is provided at the center of the limiting plate for screwing onto the external thread at the end of the pull rod.

[0023] In some embodiments, a thick tie rod is provided above the telescopic component, and two parallel thin tie rods symmetrical about the center line of the support beam are provided below the telescopic component. The support fixing system and the driving wheel are fixed together by three tie rods.

[0024] In some embodiments, the ejection system includes a hydraulic pump station, which is connected to a telescopic component composed of a hydraulic hollow cylinder through a hydraulic hose and a quick-connect connector.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The three-point fixing method of the locking and positioning system is adopted to solve the safety problem, and the disassembly device is firmly connected to the driving wheel and the spline shaft through assembly; the hydraulic hollow cylinder plus electric hydraulic pump station mode is adopted to solve the problem of low disassembly efficiency; the use of positioning sleeves to position solves the problem of difficult equipment positioning; at the same time, during the disassembly process, the driving wheel is used as the fulcrum, and the reaction force is transmitted to the inner ring of the bearing through the spacer, so that the inner ring of the bearing is separated by the opposite force of the spline shaft end face, avoiding problems such as bearing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] In the attached picture:

[0029] Figure 1 This is a three-dimensional diagram of the disassembly device of the travel drive system of the utility model;

[0030] Figure 2 Schematic diagram of the support beam of the utility model (a is a stereogram, b is a cross-sectional view);

[0031] Figure 3 A schematic diagram of a positioning sleeve of the utility model (a is a stereogram, b is a cross-sectional view);

[0032] Figure 4 This is an assembly effect diagram of the disassembly device of the travel drive system of the utility model;

[0033] Figure 5 It is a schematic diagram of the principle of the disassembly device of the travel drive system of the utility model.

[0034] Figure identification: 1-support beam, 2-telescopic part, 3-positioning sleeve, 4-limiting plate, 5-limiting plate, 6-connecting plate, 7-pull rod, 8-nut, 9-spacer, 10-spacer, 11-nut, 12-pull rod, 100-locking positioning system, 200-support and fixing system, 300-ejection system, 400-driving wheel.

[0035] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1 , Figure 4 As shown, a walking drive system disassembly device includes a support and fixing system 200, an ejection system 300 and a locking and positioning system 100; the support and fixing system 200 is arranged on the axial outer side of the driving wheel 400 to provide a force point for the disassembly device; the ejection system 300 includes a telescopic component 2, which is installed on the side of the support and fixing system 200 facing the driving wheel 400 to provide pressure for the disassembly device; the locking and positioning system 100 includes a first locking and positioning component and a second locking and positioning component;

[0040] The first locking and positioning component is used to align the telescopic component 2 with the spline shaft in the driving wheel 400 and then connect and fix the two together; the second locking and positioning component is used to connect and fix the supporting and fixing system 200 with the driving wheel 400.

[0041] It should be noted that the key to disassembling the travel drive system of a super-large excavator is the separation of the interference fit surface between the inner ring of the outer bearing and the spline shaft. By separating the interference fit surface between the inner ring of the bearing and the spline shaft, the disassembly device provided by the utility model uses the drive wheel as the fulcrum, fixes the inner ring of the bearing through a spacer, applies a force to the outer end face of the spline shaft, and the inner ring of the bearing receives forces of the same magnitude and opposite directions and separates, thereby avoiding damage to the inner and outer rings of the bearing due to opposite forces, thereby achieving the purpose of disassembling the travel drive system.

[0042] The above-mentioned supporting and fixing system is further described below.

[0043] like Figure 2 As shown, the support and fixing system 200 includes a support beam 1 and a connecting plate 6; the support beam 1 is a box-type structure as a whole, with the characteristics of high strength and large bearing capacity, mainly composed of two side panels and multiple ribs between the two side panels, and the top and bottom of the support beam 1 are each provided with at least one through hole for installing pull rods 7 and 12; the connecting plate 6 fixes the telescopic component 2 to the support beam 1 through fasteners.

[0044] Further solutions, such as Figure 1 , Figure 2 As shown, six connecting holes are provided on the connecting plate 6; among them, four connecting holes are coaxially arranged with the threaded holes provided on the axial surface of the telescopic component 2, and the telescopic component 2 (preferably an oil cylinder) and the connecting plate 6 are fixed together by short bolts; the remaining two connecting holes are coaxially arranged with the light holes provided on the middle part of the support beam 1, and the support beam 1 and the connecting plate 6 are fixed together by long bolts and nuts.

[0045] Further solutions, such as Figure 1 , Figure 2As shown, a avoidance hole coaxially arranged with the short bolt is provided in the middle of the support beam 1 to facilitate the head of the short bolt to pass through the avoidance hole, so that the connecting plate 6 can fit on the side of the support beam 1.

[0046] The above locking and positioning system is further described below.

[0047] like Figure 1 , Figure 3 As shown, the first locking and positioning component is a positioning sleeve 3 of a circular plate structure, the positioning sleeve 3 and the telescopic component 2 (cylinder) are assembled together through a stop structure, and the positioning sleeve 3 and the spline shaft are connected and fixed by fasteners.

[0048] Further solutions, such as Figure 3 , Figure 5 As shown, an axial flange structure extending toward the telescopic component (cylinder) 2 is provided at the center of the locating sleeve 3, and the axial flange structure is inserted into the groove at the front end of the telescopic component 2 (cylinder) to form a stop structure; a circle of evenly distributed light holes is provided on the locating sleeve 3 around the flange structure, and a plurality of threaded holes corresponding to the light holes one by one are provided on the axial surface facing the locating sleeve 3, and the locating sleeve 3 is fixedly connected to the spline shaft by a plurality of bolts.

[0049] It should be noted that the positioning sleeve 3 is used for positioning the telescopic component (cylinder). The positioning sleeve 3 is connected to the spline shaft of the travel system by bolts. After the cylinder, support beam 1 and connecting plate 6 form an assembly, the positioning sleeve 3 is inserted to facilitate the installation of the locking and positioning system, while preventing the cylinder head from slipping when the cylinder applies pressure.

[0050] like Figure 1 , Figure 4 , Figure 5 As shown, the second locking and positioning component includes a plurality of pull rods 7, 12, a first limiting component and a second limiting component; the plurality of pull rods 7, 12 are arranged at the upper and lower parts of the telescopic component 2, one end of the pull rods 7, 12 passes through the support beam 1 in the support and fixing system 200, and the other end of the pull rods 7, 12 is used to penetrate into the through hole on the driving wheel 400; the first limiting component is fixed on the pull rod 7 passing through the support beam 1, and when a pulling force is applied to the pull rod 7 toward the driving wheel 400, under the action of the first limiting component, the pull rod 7 will not be able to be pulled out from the support beam 1; the second limiting component is fixed on the pull rod 12 passing through the driving wheel 400, and when a pulling force is applied to the pull rod 12 toward the support beam 1, under the action of the second limiting component, the pull rod 12 will not be able to be pulled out from the driving wheel 400.

[0051] For further solutions, please refer to Figure 1 , Figure 4 , Figure 5As shown, the first limiting component is composed of spacers 9, 10 and nuts 8, 11; the spacers 9, 10 are mounted on the pull rods 7, 12, and the nuts 8, 11 are screwed on the external threads at the ends of the pull rods. Compared with washers, the use of spacers 9, 10 has better clamping and anti-loosening effects; the second limiting component is the limiting plates 4, 5, and the centers of the limiting plates 4, 5 are provided with internal threaded holes for screwing on the external threads at the ends of the pull rods.

[0052] For further solutions, please refer to Figure 1 , Figure 4 , Figure 5 As shown, a thick tie rod 12 is provided above the telescopic component, and two parallel thin tie rods 7 that are symmetrical about the center line of the support beam 1 are provided below the telescopic component. The support fixing system 200 and the driving wheel 400 are fixed together by three tie rods.

[0053] It should be noted that both ends of the tie rod, the limit plate and the nut are fine-pitch threads, which have the characteristics of good fatigue resistance, high connection lightness and good bonding performance, and also reduce the difficulty of installation and disassembly. By using three tie rods to fix the disassembly device (one on the top and two on the bottom), the overall stability of the disassembly device is guaranteed to avoid shaking during the disassembly process; through three-point positioning and locking, the force distribution can be ensured to be more uniform, reducing safety risks.

[0054] The above ejection system is further described below.

[0055] like Figure 1 As shown, the ejection system 300 includes a hydraulic pump station, a hydraulic hollow cylinder, a hydraulic hose, and a quick-release joint; the hydraulic hollow cylinder is connected to the hydraulic pump station through a hydraulic hose and a quick-release joint, and the axial flange structure on the positioning sleeve 3 is inserted into the hollow piston rod of the hydraulic hollow cylinder to form a stop structure; the ejection system 300 uses a large-tonnage hydraulic hollow cylinder and a pump station, with a maximum thrust of 100 tons, a stroke of 300mm, and a rated pressure of 45Mpa, which can more efficiently overcome the surface engagement force of the bearing and the spline shaft to complete the disassembly work; remote control operation is performed through a wireless handle to control the extension and contraction and pressure of the cylinder, which not only improves the work efficiency but also improves the safety.

[0056] The assembly process of the above-mentioned travel drive system disassembly device is given below:

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the positioning sleeve 3 is bolted to the end face of the spline shaft, the connecting plate 6 is bolted to the support beam 1, and then the hydraulic hollow cylinder is bolted to the connecting plate 6. At this time, the support beam 1, the connecting plate 6 and the hydraulic hollow cylinder form an assembly, and then the assembly is lifted, and the hollow piston rod of the hydraulic hollow cylinder is inserted into the axial flange structure of the positioning sleeve 3. Prepare the limit plates 4 and 5, pass the pull rod 12 through the through hole on the support beam 1, and pass it out from the through hole on the driving wheel 400. After the external thread at the end of the pull rod 12 is aligned with the internal thread of the limit plate 4, rotate the pull rod 12 until the end face of the pull rod 12 is about 15 cm exposed from the limit plate 4. At this time, insert the spacer 10 into the other end of the pull rod 12, tighten the spacer 10 with the nut 11, and install the two pull rods 7 below in the same way. Connect the oil inlet and return pipes of the hydraulic hollow cylinder. After checking that there are no problems, start the switch, and the hydraulic hollow cylinder extends. As the pressure slowly increases, the friction of the joint surface is overcome to press the spline shaft out of the inner ring of the bearing, and the disassembly is completed.

[0058] The working principle of the above-mentioned travel drive system disassembly device is given below:

[0059] like Figure 5 As shown, the hydraulic pump station starts, and the hydraulic hollow cylinder extends until the positioning sleeve is pressed, and the pressure continues to increase. The pressure is transmitted to the spline shaft through the positioning sleeve. At the same time, the cylinder is subjected to a reaction force. The cylinder body transmits the reaction force to the support beam through the connecting plate. The support beam transmits the force to the pull rod through the nut and the spacer. The pull rod transmits the force to the drive wheel through the limit plate. The drive wheel transmits the force to the inner ring of the bearing through the spacer. At this time, the right end face of the spline shaft is subjected to a force to the left, and the inner ring of the bearing is subjected to a force to the right. The two forces are equal and opposite. As the cylinder pressure increases, the force acting on the spline shaft is greater than the engagement force between the spline shaft and the inner ring surface of the bearing. The spline shaft is separated from the bearing, and the disassembly is completed.

[0060] In summary, the travel drive system disassembly device provided by the utility model has the following advantages:

[0061] 1. The locking and positioning system adopts a three-point fixing method, which is safe and reliable. The second locking and positioning system can effectively fix the support and fixing system with the driving wheel through three tie rods, effectively avoiding safety hazards such as shaking and tipping during the disassembly process.

[0062] 2. The use of positioning sleeves reduces the difficulty of aligning the cylinder and the spline shaft, while ensuring the stability and safety of the disassembly process.

[0063] 3. The disassembly device is assembled. All systems and components of the device are assembled and connected by bolts and other fasteners. The assembly and disassembly efficiency is high and the connection is stable and reliable.

[0064] 4. The power adopts the mode of hydraulic hollow cylinder plus electric hydraulic pump station, which has high disassembly efficiency. The electric hydraulic pump station has high pressure and is easy to operate. The hollow cylinder can be used in conjunction with the positioning sleeve for easy assembly; the electric hydraulic pump station can provide greater pressure, reduce labor intensity and increase the maximum pressure of 100 tons, with stable power output and high disassembly efficiency.

[0065] 5. During the disassembly process, the driving wheel is used as the fulcrum, and the reaction force is transmitted to the inner ring of the bearing through the spacer, so that the inner ring of the bearing is separated by a force that is as large as the opposite force of the spline shaft end face, avoiding problems such as bearing damage.

[0066] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0067] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0068] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A travel drive system disassembly device, characterized in that: include: The support and fixing system is arranged on the axial outer side of the driving wheel to provide a fulcrum for the dismantling device; The ejection system includes a telescopic component, which is installed on the side of the supporting and fixing system facing the driving wheel to provide pressure for the disassembling device; Locking and positioning system, including: A first locking and positioning component is used to align the telescopic component with the spline shaft in the driving wheel and then connect and fix the two together; The second locking and positioning component is used to connect and fix the supporting and fixing system to the driving wheel.

2. A travel drive system disassembly device according to claim 1, characterized in that: The support and fixing system comprises: The support beam is a box-shaped structure as a whole, and is provided with at least one through hole at the top and bottom; A connecting plate is used to fix the telescopic component and the support beam together through fasteners.

3. A travel drive system disassembly device according to claim 2, characterized in that: The connecting plate is provided with a plurality of connecting holes; Among them, at least one connecting hole is coaxially arranged with the threaded hole on the axial surface of the telescopic component, and the telescopic component and the connecting plate are fixed together by short bolts; at least one connecting hole is coaxially arranged with the light hole on the middle part of the support beam, and the support beam and the connecting plate are fixed together by long bolts and nuts.

4. A travel drive system disassembly device according to claim 3, characterized in that: The middle part of the support beam is provided with an avoidance hole coaxially arranged with the short bolt, so that the head of the short bolt can pass through the avoidance hole, so that the connecting plate can fit on the side of the support beam.

5. The travel drive system disassembly device according to claim 1, characterized in that: The first locking and positioning component is a positioning sleeve of a circular plate structure, the positioning sleeve and the telescopic component are assembled together through a stop structure, and the positioning sleeve and the spline shaft are connected and fixed by fasteners.

6. A travel drive system disassembly device according to claim 5, characterized in that: An axial flange structure extending toward the telescopic component is provided at the center of the positioning sleeve, and the axial flange structure is inserted into the groove at the front end of the telescopic component to form a stop structure; The positioning sleeve is provided with a circle of evenly distributed light holes around the flange structure, and the spline shaft is provided with a plurality of threaded holes coaxially corresponding to the light holes on the axial surface facing the positioning sleeve, and the positioning sleeve is fixedly connected to the spline shaft by a plurality of bolts.

7. The travel drive system disassembly device according to claim 1, characterized in that: The second locking and positioning component comprises: A plurality of pull rods are arranged at the upper and lower parts of the telescopic component, one end of the pull rod passes through the support beam in the support and fixing system, and the other end of the pull rod is used to penetrate into the through hole on the driving wheel; A first limiting component is fixed on the pull rod passing through the support beam. When a pulling force is applied to the pull rod in the direction of the driving wheel, the pull rod cannot be pulled out from the support beam under the action of the first limiting component; The second limiting component is fixed on the pull rod passing through the driving wheel. When a pulling force is applied to the pull rod in the direction of the supporting beam, the pull rod cannot be pulled out from the driving wheel under the action of the second limiting component.

8. The travel drive system disassembly device according to claim 7, characterized in that: The first limiting component is composed of a spacer and a nut; the spacer is sleeved on the pull rod, and the nut is screwed on the external thread at the end of the pull rod; The second limiting component is a limiting plate, and an internal thread hole is provided at the center of the limiting plate for tightening on the external thread at the end of the pull rod.

9. The travel drive system disassembly device according to claim 7, characterized in that: A thick pull rod is provided above the telescopic component, and two parallel thin pull rods symmetrical about the center line of the support beam are provided below the telescopic component. The support fixing system and the driving wheel are fixed together through the three pull rods.

10. The travel drive system disassembly device according to claim 1, characterized in that: The ejection system comprises a hydraulic pump station, which is connected to a telescopic component composed of a hydraulic hollow cylinder through a hydraulic hose and a quick-connect connector.

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