Maintenance tool for earthwork transportation mechanical equipment

Abstract

The utility model relates to the technical field of hydraulic engineering machinery maintenance, in particular to an earthwork transportation mechanical equipment maintenance tool. The device comprises a handle, a first motor is fixed on one side of the handle, a rotating structure is arranged on one side of the first motor, and a position adjusting structure is arranged on one side of the rotating structure. According to the maintenance tool and device for the earthwork transportation mechanical equipment, through the design of the rotating structure and the position adjusting structure, the tool can adapt to more kinds of maintenance scenes, the tool can provide a flexible solution no matter the tool works in a narrow space or needs to be accurately aligned with a connector for maintenance, and the maintenance efficiency is improved. Maintenance personnel only need to simply rotate or adjust the position of the tool, length and angle adjustment can be achieved, complex operation steps are not needed, operation difficulty is reduced, a solid foundation is laid for timely and quality completion of engineering, and the device is made of titanium alloy and is light and firm.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering machinery maintenance technology, and in particular to a maintenance tool for earthmoving machinery and equipment. Background Technology

[0002] Water conservancy projects are characterized by tight schedules and heavy workloads, requiring a large number of large-scale equipment. Large earthmoving and transportation machinery, as the main force in construction, is numerous and plays a crucial role. These machines operate under high intensity and long hours, inevitably leading to various malfunctions and problems. The timeliness and efficiency of maintenance directly impact the overall project progress and cost. Traditional maintenance tools and methods often prove inadequate when dealing with large earthmoving and transportation machinery. Excessive maintenance time and a slow pace not only waste valuable construction time but can also cause additional losses due to prolonged equipment downtime. Therefore, shortening maintenance time and accelerating the maintenance pace have become urgent problems to be solved in water conservancy project construction. Against this backdrop, we propose an innovative maintenance tool for earthmoving and transportation machinery. This tool is specifically designed and optimized for the maintenance characteristics of large earthmoving and transportation machinery. It can quickly and accurately locate fault points and efficiently complete maintenance tasks, significantly shortening maintenance time and improving maintenance efficiency. The emergence of this maintenance tool not only solves the problem of equipment maintenance in water conservancy project construction but also provides a strong guarantee for ensuring the normal operation of machinery and the smooth progress of the project.

[0003] For example, Chinese utility model patent (CN216138777U) discloses a portable maintenance device for building and civil engineering, which solves the following problems: existing maintenance devices for civil engineering are prone to loosening of maintenance parts during clamping, reducing maintenance efficiency; and the device cannot be easily fixed with clamping rods during tightening, making clamping inconvenient. At the same time, the device cannot flexibly adjust the clamping angle, which weakens the flexibility of the device during use.

[0004] When using the above technology, the following technical problems were found in the existing technology: the device cannot quickly lock and release the multi-functional joint, which will greatly increase the maintenance time. In case of emergency maintenance or need for quick replacement of parts, this inconvenience may hinder the progress of the project and affect the overall construction efficiency. Moreover, the length of the device cannot be adjusted, and it may not be able to handle joints of different specifications and models flexibly. This limits the scope of application of the maintenance tool and reduces its versatility and practicality. To this end, we have designed a maintenance tool for earthmoving machinery and equipment to provide an alternative technical solution to the above technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide a maintenance tool for earthmoving machinery and equipment to address the aforementioned technical problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A maintenance tool for earthmoving machinery includes a handle, a first motor fixed to one side of the handle, a rotating structure on one side of the first motor, a position adjustment structure on one side of the rotating structure, an angle adjustment structure on one side of the position adjustment structure, and a multi-functional connector fixed to the outer side of the angle adjustment structure.

[0008] As a preferred embodiment of the earthmoving machinery maintenance tool provided by this utility model, the rotating structure includes a first bevel gear, a second bevel gear, a third bevel gear, a rotating column, a loading and unloading shaft, and a rotating rod. The output end of the first motor is fixed with the first bevel gear. One end of the handle is rotatably connected to the rotating column, and one end of the rotating column is rotatably connected to the rotating rod. One side of the rotating column is fixed with the loading and unloading shaft, the outer side of the rotating column is fixed with the third bevel gear, and the outer side of the rotating rod is fixed with the second bevel gear. The second and third bevel gears are both meshed with the first bevel gear, and the rotating rod and the handle are rotatably connected.

[0009] As a preferred embodiment of the earthmoving machinery maintenance tool provided by this utility model, the position adjustment structure includes a screw, a screw sleeve, a slide rod, a push rod, and a first connecting sleeve. A screw is fixed to one side of the rotating rod, a screw sleeve is threaded to the outer side of the screw, slide rods are slidably connected to the inner sides of the upper and lower ends of the screw sleeve, both slide rods are fixed to the handle, push rods are fixed to both ends of one side of the screw sleeve, and a first connecting sleeve is fixed to one side of the two push rods.

[0010] As a preferred embodiment of the earthmoving machinery maintenance tool provided by this utility model, the position adjustment structure further includes a concave block, a rotating plate, a rotating shaft, a limiting plate, a first spring, and a plug rod. A concave block is fixed to one side of the first connecting sleeve. A rotating shaft is rotatably connected to the inner side of the concave block. A rotating plate is fixed to the outer side of the rotating shaft. A limiting plate is fixed to one end of the rotating shaft. A plug rod is slidably connected to the inner side of the limiting plate. The plug rod and the concave block are plugged into each other. A first spring is sleeved to the outer side of the plug rod. One side of the first spring is fixed to the limiting plate, and the other side of the first spring is fixed to the plug rod.

[0011] As a preferred embodiment of the earthmoving machinery maintenance tool provided by this utility model, the angle adjustment structure includes a locking mechanism and a stabilizing mechanism. A locking mechanism is provided on one side of the rotating plate, and a stabilizing mechanism is provided at one end of the locking mechanism. The locking mechanism and the multi-functional connector are fixed together.

[0012] In a preferred embodiment of the earthmoving machinery maintenance tool provided by this utility model, the locking mechanism includes a second connecting sleeve, a fixing block, a second motor, a worm, a worm wheel, and a rotating roller. One end of the rotating plate is fixed to the second connecting sleeve, and the rotating roller is rotatably connected to the inner side of the second connecting sleeve. The outer side of the rotating roller is fixed to a multi-functional connector, and a worm wheel is fixed to one side of the rotating roller. Fixing blocks are fixed to both ends of one side of the second connecting sleeve. A worm is rotatably connected to the side of the two fixing blocks that are close to each other, and the worm and worm wheel are meshed together. A second motor is fixed to the bottom side of one of the fixing blocks, and the output end of the second motor is fixed to the worm.

[0013] As a preferred embodiment of the earthmoving machinery maintenance tool provided by this utility model, the stabilizing mechanism includes a limiting gear, a limiting rack, a fixing plate, a T-shaped tie rod, and a second spring. A limiting gear is fixed to one side of the rotating roller, a fixing plate is fixed to one end of the second connecting sleeve, a T-shaped tie rod is slidably connected to the inner side of the fixing plate, a second spring is sleeved and connected to the outer side of the T-shaped tie rod, a limiting rack is fixed to one end of the T-shaped tie rod, one end of the second spring is fixed to the fixing plate, and the other end of the second spring is fixed to the limiting rack. The limiting rack and the limiting gear are meshed together.

[0014] In a preferred embodiment of the earthmoving machinery maintenance tool provided by this utility model, a storage battery is installed inside the handle, and the first motor and the second motor are both electrically connected to the storage battery.

[0015] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0016] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0017] This utility model provides a maintenance tool for earthmoving machinery. The device, through the design of a rotation structure and a position adjustment structure, enables the tool to adapt to a wider range of maintenance scenarios. Whether working in a narrow space or requiring precise alignment of joints for maintenance, this tool provides a flexible solution, enhancing its versatility and practicality. Maintenance personnel can simply rotate or adjust the position of the tool to achieve length and angle adjustments without complicated operating procedures, thus reducing the difficulty of operation.

[0018] The device, through its angle-adjustable structure, allows maintenance tools to adapt more flexibly to different specifications and models of civil engineering transportation equipment. Maintenance personnel can complete various maintenance tasks without frequently changing tools, thus greatly improving maintenance efficiency. Its emergence will bring significant benefits to the field of water conservancy construction, improve construction efficiency, reduce maintenance costs, and lay a solid foundation for the timely and high-quality completion of projects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a maintenance tool for earthmoving machinery and equipment according to the present invention;

[0021] Figure 2 This is a side view of a maintenance tool for earthmoving machinery and equipment according to the present invention;

[0022] Figure 3 This is a schematic diagram of a handle for a maintenance tool for earthmoving machinery and equipment according to the present invention;

[0023] Figure 4 This is a schematic diagram showing the connection between the first and second bevel gears in a maintenance tool for earthmoving machinery and equipment according to this utility model.

[0024] Figure 5 This is a schematic diagram of the connection between the screw and the sleeve of a maintenance tool for earthmoving machinery and equipment according to this utility model;

[0025] Figure 6 This is a schematic diagram showing the connection between the rotating plate and the rotating shaft of a maintenance tool for earthmoving machinery and equipment according to this utility model;

[0026] Figure 7 This is a schematic diagram showing the connection between the worm gear and worm wheel in a maintenance tool for earthmoving machinery and equipment according to this utility model;

[0027] Figure 8 This is a schematic diagram showing the connection between the limiting gear and the limiting rack of a maintenance tool for earthmoving machinery and equipment according to this utility model;

[0028] Figure 9 This is a schematic diagram showing the connection between the rotating roller and the limiting gear in a maintenance tool for earthmoving machinery and equipment according to this utility model;

[0029] Figure 10This is a schematic diagram of a multi-functional connector for repairing earthmoving machinery and equipment according to this utility model.

[0030] In the diagram: 1. Handle; 2. First motor; 3. First bevel gear; 4. Second bevel gear; 5. Third bevel gear; 6. Rotating column; 7. Loading / unloading shaft; 8. Rotating rod; 9. Screw; 10. Screw sleeve; 11. Slide rod; 12. Push rod; 13. First connecting sleeve; 14. Concave block; 15. Rotating plate; 16. Rotating shaft; 17. Limiting plate; 18. First spring; 19. Insert rod; 20. Second connecting sleeve; 21. Fixing block; 22. Second motor; 23. Worm gear; 24. Worm wheel; 25. Rotating roller; 26. Limiting gear; 27. Limiting rack; 28. Fixing plate; 29. ​​T-shaped pull rod; 30. Second spring; 31. Multifunctional connector. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] As described in the background art, the device cannot quickly lock and release the multi-functional connector, which will greatly increase maintenance time. In the event of emergency maintenance or the need for rapid replacement of parts, this inconvenience may hinder the progress of the project and affect the overall construction efficiency. Furthermore, the length of the device cannot be adjusted, which may not be able to flexibly cope with connectors of different specifications and models. This limits the applicability of the maintenance tool and reduces its versatility and practicality.

[0033] To solve this technical problem, this utility model provides a maintenance tool for earthmoving machinery and equipment.

[0034] For details, please refer to Figures 1-10 A maintenance tool for earthmoving machinery includes: a handle 1, a first motor 2 fixed to one side of the handle 1, a rotating structure on one side of the first motor 2, a position adjustment structure on one side of the rotating structure, an angle adjustment structure on one side of the position adjustment structure, and a multi-functional connector 31 fixed to the outside of the angle adjustment structure.

[0035] This utility model provides a maintenance tool for earthmoving machinery and equipment. The device, through the design of a rotating structure and a position adjustment structure, enables the tool to adapt to a wider range of maintenance scenarios. Whether working in a narrow space or requiring precise alignment of joints for maintenance, this tool provides a flexible solution, enhancing its versatility and practicality. Maintenance personnel can simply rotate or adjust the position of the tool to achieve length and angle adjustments without complicated operating steps, thus reducing the difficulty of operation.

[0036] The device's angle-adjustable structure allows maintenance tools to adapt more flexibly to different specifications and models of civil engineering transportation equipment. Maintenance personnel can complete various maintenance tasks without frequently changing tools, thereby greatly improving maintenance efficiency, reducing maintenance costs, and laying a solid foundation for the timely and high-quality completion of projects.

[0037] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] Reference Figures 1-10 A maintenance tool for earthmoving machinery includes a handle 1, a first motor 2 fixed to one side of the handle 1, a rotating structure on one side of the first motor 2, a position adjustment structure on one side of the rotating structure, an angle adjustment structure on one side of the position adjustment structure, and a multi-functional connector 31 fixed to the outside of the angle adjustment structure.

[0040] The rotating structure includes a first bevel gear 3, a second bevel gear 4, a third bevel gear 5, a rotating column 6, a loading / unloading shaft 7, and a rotating rod 8. The output end of the first motor 2 is fixed with the first bevel gear 3. The rotating column 6 is rotatably connected to one end of the handle 1. The rotating rod 8 is rotatably connected to one end of the rotating column 6. The loading / unloading shaft 7 is fixed to one side of the rotating column 6. The third bevel gear 5 is fixed to the outside of the rotating column 6. The second bevel gear 4 is fixed to the outside of the rotating rod 8. The second bevel gear 4 and the third bevel gear 5 are both meshed with the first bevel gear 3. The rotating rod 8 is rotatably connected to the handle 1, so that the rotating structure can drive the screw 9 and the loading / unloading shaft 7 to rotate.

[0041] The position adjustment structure includes a screw 9, a screw sleeve 10, a slide rod 11, a push rod 12, a first connecting sleeve 13, a recess 14, a rotating plate 15, a rotating shaft 16, a limiting plate 17, a first spring 18, and a plug rod 19. A screw 9 is fixed to one side of the rotating shaft 8. A screw sleeve 10 is threaded to the outer side of the screw 9. Slide rods 11 are slidably connected to the inner sides of the upper and lower ends of the screw sleeve 10. Both slide rods 11 are fixed to the handle 1. Push rods 12 are fixed to both ends of one side of the screw sleeve 10. A first connecting sleeve 13 is fixed to one side of each of the two push rods 12. A recess 14 is fixed to one side of a connecting sleeve 13. A rotating shaft 16 is rotatably connected to the inner side of the recess 14. A rotating plate 15 is fixed to the outer side of the rotating shaft 16. A limiting plate 17 is fixed to one end of the rotating shaft 16. A plug rod 19 is slidably connected to the inner side of the limiting plate 17. The plug rod 19 and the recess 14 are plugged into each other. A first spring 18 is sleeved to the outer side of the plug rod 19. One side of the first spring 18 is fixed to the limiting plate 17, and the other side of the first spring 18 is fixed to the plug rod 19, so that the device can adjust the position of the multi-functional connector 31.

[0042] The angle adjustment structure includes a locking mechanism and a stabilizing mechanism. A locking mechanism is provided on one side of the rotating plate 15, and a stabilizing mechanism is provided at one end of the locking mechanism. The locking mechanism and the multi-functional connector 31 are fixed together, so that the device can adjust the angle of the multi-functional connector 31.

[0043] The locking mechanism includes a second connecting sleeve 20, a fixing block 21, a second motor 22, a worm gear 23, a worm wheel 24, and a rotating roller 25. The second connecting sleeve 20 is fixed to one end of the rotating plate 15. The rotating roller 25 is rotatably connected to the inner side of the second connecting sleeve 20. The outer side of the rotating roller 25 is fixed to the multi-functional connector 31. The worm wheel 24 is fixed to one side of the rotating roller 25. Fixing blocks 21 are fixed to both ends of one side of the second connecting sleeve 20. The worm gear 23 is rotatably connected to the side of the two fixing blocks 21 that are close to each other. The worm gear 23 and the worm wheel 24 are meshed together. The second motor 22 is fixed to the bottom side of one of the fixing blocks 21. The output end of the second motor 22 is fixed to the worm gear 23, so that the locking mechanism can drive the rotating roller 25 to rotate.

[0044] The stabilizing mechanism includes a limiting gear 26, a limiting rack 27, a fixing plate 28, a T-shaped tie rod 29, and a second spring 30. The limiting gear 26 is fixed to one side of the rotating roller 25. The fixing plate 28 is fixed to one end of the second connecting sleeve 20. The T-shaped tie rod 29 is slidably connected to the inner side of the fixing plate 28. The second spring 30 is sleeved and connected to the outer side of the T-shaped tie rod 29. The limiting rack 27 is fixed to one end of the T-shaped tie rod 29. One end of the second spring 30 is fixed to the fixing plate 28, and the other end of the second spring 30 is fixed to the limiting rack 27. The limiting rack 27 and the limiting gear 26 are meshed together, so that the stabilizing mechanism can prevent the rotating roller 25 from rotating.

[0045] The handle 1 is equipped with a storage battery. The first motor 2 and the second motor 22 are both electrically connected to the storage battery, which enables the device to be electrically controlled, greatly saving manpower.

[0046] Both the first motor 2 and the second motor 22 have power-off self-locking capability, which enables the travel of the device to be locked and controlled.

[0047] The device is made of titanium alloy, making it lightweight and sturdy.

[0048] This utility model provides a maintenance tool for earthmoving machinery and equipment. The device, through the design of a rotating structure and a position adjustment structure, enables the tool to adapt to a wider range of maintenance scenarios. Whether working in a narrow space or requiring precise alignment of joints for maintenance, this tool provides a flexible solution, enhancing its versatility and practicality. Maintenance personnel can simply rotate or adjust the position of the tool to achieve length and angle adjustments without complicated operating steps, thus reducing the difficulty of operation.

[0049] The device's angle-adjustable structure allows maintenance tools to adapt more flexibly to different specifications and models of civil engineering transportation equipment. Maintenance personnel can complete various maintenance tasks without frequently changing tools, thereby greatly improving maintenance efficiency, reducing maintenance costs, and laying a solid foundation for the timely and high-quality completion of projects.

[0050] The usage process of the earthmoving machinery maintenance tool provided by this utility model is as follows: When using the device for maintenance, the user first adjusts the angle and length of the device according to the required maintenance location. The user pulls the insertion rod 19, thereby stretching the first spring 18 and disengaging the insertion rod 19 from the insertion connection with the concave block 14. At this time, the user rotates the limiting plate 17 and the rotating shaft 16, thereby rotating the rotating plate 15. When the appropriate angle is adjusted, the user releases the insertion rod 19. Under the elastic force of the first spring 18, the insertion connection between the screw 9 and the concave block 14 is restored, thus completing the angle adjustment. At this time, the user... When motor 2 is energized and rotates, its output drives the first bevel gear 3 to rotate. Since the first bevel gear 3 is meshed with a second bevel gear 4 on one side, the rotation of the first bevel gear 3 drives the second bevel gear 4 to rotate. The rotation of the second bevel gear 4 drives the rotating rod 8 to rotate, which in turn drives the screw 9 to rotate. Because the screw 9 is threadedly connected to a threaded sleeve 10, the rotation of the screw 9 causes the threaded sleeve 10 to slide along the outer side of the two sliding rods 11. The movement of the threaded sleeve 10 drives the two push rods 12 to move, which in turn drives the first connecting sleeve 13 and the recess 14 to move, thus allowing the multifunctional connector 31 to contact the desired position. In this configuration, when the repair head needs to be replaced, the user pulls the T-shaped lever 29, which compresses the second spring 30, causing the limiting rack 27 to disengage from the limiting gear 26. Then, the user energizes the second motor 22, which drives the worm 23 to rotate. Since a worm wheel 24 is meshed with one side of the worm 23, the rotation of the worm 23 drives the worm wheel 24 to rotate. The rotation of the worm wheel 24 then drives the rotating roller 25 and the multi-functional connector 31 to rotate. After adjusting the working end of the multi-functional connector 31, the user releases the T-shaped lever 29, and under the elastic force of the second spring 30… The reconnection of the limiting rack 27 and the limiting gear 26 is restored, ensuring the stability of the device. When installing or removing nuts that are close together, the user only needs to connect the loading / unloading shaft 7 to the nut. At this time, the rotation of the first bevel gear 3 drives the rotation of the third bevel gear 5, which in turn drives the rotating column 6 and the loading / unloading shaft 7 to rotate, thus facilitating the rotation of the nut head. In summary, this utility model, through its ingenious rotation structure and position adjustment structure design, achieves flexible adjustment of the device's length and angle. This innovative design not only improves the adaptability and practicality of the maintenance tool but also greatly enhances maintenance efficiency and quality. Furthermore, this maintenance tool has a simple structure, is easy to operate, and is easy to promote and apply. It is believed that with the promotion and use of this utility model, it will bring a more convenient and efficient solution to the maintenance of water conservancy engineering civil engineering transportation equipment, further promoting the progress and development of the water conservancy engineering industry.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A maintenance tool for earthmoving machinery, comprising a handle (1), characterized in that, A first motor (2) is fixed to one side of the handle (1), a rotating structure is provided on one side of the first motor (2), a position adjustment structure is provided on one side of the rotating structure, an angle adjustment structure is provided on one side of the position adjustment structure, and a multi-functional connector (31) is fixed to the outside of the angle adjustment structure.

2. The earthmoving machinery maintenance tool according to claim 1, characterized in that, The rotating structure includes a first bevel gear (3), a second bevel gear (4), a third bevel gear (5), a rotating column (6), a loading / unloading shaft (7), and a rotating rod (8). The output end of the first motor (2) is fixed with the first bevel gear (3). The inner end of the handle (1) is rotatably connected to the rotating column (6). The rotating rod (8) is rotatably connected to one end of the rotating column (6). The loading / unloading shaft (7) is fixed to one side of the rotating column (6). The third bevel gear (5) is fixed to the outer side of the rotating column (6). The second bevel gear (4) is fixed to the outer side of the rotating rod (8). The second bevel gear (4) and the third bevel gear (5) are both meshed with the first bevel gear (3). The rotating rod (8) is rotatably connected to the handle (1).

3. A maintenance tool for earthmoving machinery and equipment according to claim 2, characterized in that, The position adjustment structure includes a screw (9), a screw sleeve (10), a slide rod (11), a push rod (12), and a first connecting sleeve (13). The screw (9) is fixed on one side of the rotating rod (8). The screw sleeve (10) is threadedly connected to the outer side of the screw (9). The slide rod (11) is slidably connected to the inner side of the upper and lower ends of the screw sleeve (10). Both slide rods (11) are fixed to the handle (1). Both ends of one side of the screw sleeve (10) are fixed with push rods (12). The first connecting sleeve (13) is fixed on one side of both push rods (12).

4. A maintenance tool for earthmoving machinery and equipment according to claim 3, characterized in that, The position adjustment structure further includes a concave block (14), a rotating plate (15), a rotating shaft (16), a limiting plate (17), a first spring (18), and a plug rod (19). A concave block (14) is fixed on one side of the first connecting sleeve (13). A rotating shaft (16) is rotatably connected to the inner side of the concave block (14). A rotating plate (15) is fixed to the outer side of the rotating shaft (16). A limiting plate (17) is fixed to one end of the rotating shaft (16). A plug rod (19) is slidably connected to the inner side of the limiting plate (17). The plug rod (19) and the concave block (14) are plugged into each other. A first spring (18) is sleeved on the outer side of the plug rod (19). One side of the first spring (18) is fixed to the limiting plate (17), and the other side of the first spring (18) is fixed to the plug rod (19).

5. A maintenance tool for earthmoving machinery and equipment according to claim 4, characterized in that, The angle adjustment structure includes a locking mechanism and a stabilizing mechanism. A locking mechanism is provided on one side of the rotating plate (15), and a stabilizing mechanism is provided at one end of the locking mechanism. The locking mechanism and the multi-functional connector (31) are fixed together.

6. A maintenance tool for earthmoving machinery and equipment according to claim 5, characterized in that, The locking mechanism includes a second connecting sleeve (20), a fixing block (21), a second motor (22), a worm (23), a worm wheel (24), and a rotating rod (25). One end of the rotating plate (15) is fixed with the second connecting sleeve (20). The rotating rod (25) is rotatably connected to the inner side of the second connecting sleeve (20). The outer side of the rotating rod (25) is fixed with the multi-functional connector (31). The worm wheel (24) is fixed to one side of the rotating rod (25). Both ends of one side of the second connecting sleeve (20) are fixed with fixing blocks (21). The worm (23) is rotatably connected to the side of the two fixing blocks (21) that are close to each other. The worm (23) and the worm wheel (24) are meshed together. The bottom side of one of the fixing blocks (21) is fixed with the second motor (22). The output end of the second motor (22) is fixed with the worm (23).

7. A maintenance tool for earthmoving machinery and equipment according to claim 6, characterized in that, The stabilizing mechanism includes a limiting gear (26), a limiting rack (27), a fixing plate (28), a T-shaped tie rod (29), and a second spring (30). The limiting gear (26) is fixed on one side of the rotating roller (25). The fixing plate (28) is fixed at one end of the second connecting sleeve (20). The T-shaped tie rod (29) is slidably connected to the inner side of the fixing plate (28). The second spring (30) is sleeved and connected to the outer side of the T-shaped tie rod (29). The limiting rack (27) is fixed at one end of the T-shaped tie rod (29). One end of the second spring (30) is fixed to the fixing plate (28), and the other end of the second spring (30) is fixed to the limiting rack (27). The limiting rack (27) and the limiting gear (26) are meshed together.

8. A maintenance tool for earthmoving machinery and equipment according to claim 6, characterized in that, The handle (1) is equipped with a storage battery, and the first motor (2) and the second motor (22) are both electrically connected to the storage battery.

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