Loader front axle maintenance tray

Abstract

The utility model relates to the technical field of maintenance trays, and discloses a loader front axle maintenance tray which comprises a base station, the top of the base station is fixedly connected with fixing boxes which are in bilateral symmetry, a supporting plate is arranged above the fixing boxes, lifting assemblies are arranged in the fixing boxes, the lifting assemblies comprise racks which are in bilateral symmetry, and the racks are arranged on the supporting plate. A worm is arranged between the racks, a power assembly is arranged at the other end of the worm, a worm gear is arranged above the worm, a linkage rod is fixedly connected to the center position in the worm gear, and gears which are in bilateral symmetry are fixedly connected to the outer wall of the linkage rod. The driving motor drives the worm gear to rotate through the worm so as to drive the linkage rod and the gear to rotate, under the action of the gear, the rack slides upwards in the limiting rail, the rack displaces to drive the supporting plate to ascend, the effect that the front axle is rapidly lifted to facilitate maintenance is achieved, and the problem that a traditional tray needs a crane to lift the front axle, and maintenance is inconvenient is solved. And the front axle maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of maintenance pallet technology, and in particular to a loader front axle maintenance pallet. Background Technology

[0002] In the daily maintenance and repair of loaders, the front axle is a key component, and the efficiency and safety of its maintenance operations are of paramount importance. A loader front axle maintenance tray has emerged in this context. It aims to provide a more convenient, efficient and safe operating platform for front axle maintenance, becoming an important auxiliary tool to ensure the normal operation and maintenance of loaders.

[0003] Currently, in the field of loader front axle maintenance, traditional maintenance methods mostly rely on basic mechanical structures and simple technical principles. Common methods include using simple support devices, such as ordinary jacks with simple flat supports, and manually operating the jacks to lift the front axle to obtain maintenance space.

[0004] However, existing technologies have serious problems affecting maintenance efficiency and safety. In the process of lifting the front axle, the traditional jack and flat support method is cumbersome and time-consuming, far less efficient than a crane. However, crane operation is greatly restricted by the site, and the risk of front axle swaying during the lifting process is high, which makes maintenance inconvenient and greatly reduces maintenance efficiency. Furthermore, due to the lack of a reliable front axle fixing mechanism, the front axle is very prone to loosening and displacement during maintenance, which will not only damage the front axle components but also pose a serious threat to the safety of maintenance personnel. Therefore, a loader front axle maintenance pallet is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a loader front axle maintenance pallet, which aims to improve the problem that the existing technology requires a crane to lift the front axle, making maintenance inconvenient.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A loader front axle maintenance pallet includes a base, on the top of which are fixedly connected symmetrically placed boxes. A tray is placed above the fixed boxes, and a lifting assembly is placed inside the fixed boxes.

[0008] The lifting assembly includes symmetrical racks, the tops of which are fixedly connected to the bottom of the support plate. Limit rails are slidably connected to the sidewalls of the racks, and the sidewalls of the limit rails are fixedly connected to the inner wall of the fixed box. A worm gear is arranged between the racks, one end of which is rotatably connected to the inner wall of the fixed box, and the other end of which is equipped with a power component. A worm wheel is arranged above the worm, and the worm meshes with the worm wheel. A linkage rod is fixedly connected to the center of the worm wheel, both ends of which are rotatably connected to the inner wall of the fixed box. Symmetrical gears are fixedly connected to the outer wall of the linkage rod, located on the left and right sides of the worm wheel, and mesh with the racks.

[0009] As a further description of the above technical solution:

[0010] The power assembly includes a drive motor, the bottom of which is fixedly connected to a support platform, the bottom of which is fixedly connected to the top of the base, and the output end of the drive motor is fixedly connected to the side wall of the worm gear.

[0011] As a further description of the above technical solution:

[0012] The base is provided with a control console on its side wall, and the control console side wall is fixedly connected to the inside of the base.

[0013] As a further description of the above technical solution:

[0014] The top of the pallet is provided with multiple positioning blocks, the bottom of which are all fixedly connected to the top of the pallet, and the positioning blocks are distributed at the four corners of the pallet.

[0015] As a further description of the above technical solution:

[0016] Each positioning block has a locking post slidably connected inside, and each locking post has a limit plate slidably connected to the top of its inner wall. Each locking post also has multiple limit balls slidably connected to its bottom, and the limit balls are distributed in a circumferential shape.

[0017] As a further description of the above technical solution:

[0018] Each locking column has a movable inner column slidably connected to its inner wall, and each movable inner column has a receiving groove at the bottom of its outer wall.

[0019] As a further description of the above technical solution:

[0020] Each of the movable inner columns is fixedly connected to a top column, and each top column is fixedly connected to a rotating handle. Multiple limiting blocks are fixedly connected to the outer wall of each top column, and the limiting blocks are distributed in a circumferential shape.

[0021] As a further description of the above technical solution:

[0022] Each of the top columns is equipped with a limit spring at its bottom. One end of each limit spring is fixedly connected to the bottom of the top column, and the other end of each limit spring is fixedly connected to the inner wall of the locking column.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the drive motor drives the worm gear, which in turn drives the worm wheel to rotate. The worm wheel then drives the gears on both sides to rotate synchronously via the linkage rod. Under the action of the gears, the rack slides upward within the limit rail. The rack displacement drives the pallet to rise, achieving the effect of quickly lifting the front axle for easy maintenance. This solves the problem that traditional pallets require a crane to lift the front axle, making maintenance inconvenient, and improves the efficiency of front axle maintenance.

[0025] 2. In this utility model, the loader front axle is first placed on the pallet using a lifting tool, the holes of the front axle and the positioning block are aligned, and the locking pin is inserted. Then, the handle is pressed down to drive the top pin and the limiting block through the limiting plate, compressing the limiting spring, causing the movable inner pin and the receiving groove to descend, allowing the limiting ball in the receiving groove to roll into the positioning block groove. Under the reset action of the limiting spring, the limiting ball is stably locked, achieving the effect of quick front axle fixation. This solves the problem of no fixation and easy loosening of the front axle during maintenance, and improves the efficiency and safety of front axle fixation during maintenance. Attached Figure Description

[0026] Figure 1 This is a perspective view of a loader front axle maintenance tray proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the fixing box structure of a loader front axle maintenance tray proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the positioning block structure of a loader front axle maintenance pallet proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Control console; 3. Fixing box; 4. Tray; 5. Drive motor; 6. Support platform; 7. Worm gear; 8. Worm wheel; 9. Linkage rod; 10. Gear; 11. Rack; 12. Limit rail; 13. Positioning block; 14. Locking post; 15. Limiting plate; 16. Limiting ball; 17. Movable inner post; 18. Receiving groove; 19. Top post; 20. Rotary handle; 21. Limiting block; 22. Limiting spring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a loader front axle maintenance pallet, including a base 1 made of high-strength steel, which has good load-bearing capacity and stability. Its function is to provide a supporting foundation for the entire maintenance pallet. The top of the base 1 is fixedly connected to a left-right symmetrical fixed box 3, which is welded from steel plate. Its function is to provide installation space and protection for the lifting component, and to prevent external dust and debris from entering and affecting the normal operation of the lifting component. A pallet 4 is provided above the fixed box 3. The pallet 4 is made of thick steel plate and is used to support the loader front axle, providing a platform for the front axle to be placed and supported. The fixed box 3 is equipped with a lifting component, which is used to lift the pallet 4, so as to facilitate the maintenance operation of the loader front axle by the staff.

[0033] The lifting assembly includes symmetrical racks 11, which, through meshing with gears 10, convert the rotation of gears 10 into linear motion, thereby raising and lowering the support plate 4. The tops of the racks 11 are fixedly connected to the bottom of the support plate 4, and the side walls of the racks 11 are slidably connected to limit rails 12. The limit rails 12 guide and limit the movement of the racks 11, ensuring smooth up-and-down sliding. The side walls of the limit rails 12 are fixedly connected to the inner wall of the fixed box 3. Worms 7 are installed between the racks 11. The function of the worm gears 7 is... The power supplied by the power assembly is transmitted to the worm gear 8 to achieve motion conversion. One end of the worm 7 is rotatably connected to the inner wall of the fixed box 3, and the other end of the worm 7 is equipped with the power assembly. The worm gear 8 is located above the worm 7. The function of the worm gear 8 is to rotate under the drive of the worm 7 and transmit the rotation to the linkage rod 9. The worm 7 and the worm gear 8 mesh. The linkage rod 9 is fixedly connected to the center of the worm gear 8. The function of the linkage rod 9 is to transmit the rotation of the worm gear 8 to the gears 10 on the left and right sides, so that the gears 10 rotate synchronously. Both ends of the linkage rod 9 are rotatably connected to the inner wall of the fixed box 3. The outer wall of the linkage rod 9 is fixedly connected with symmetrical gears 10. The function of the gears 10 is to convert the rotation of the linkage rod 9 into the linear motion of the rack 11 by meshing with the rack 11, thereby driving the pallet 4 to rise and fall. The gears 10 are located on the left and right sides of the worm gear 8. The gears 10 mesh with the rack 11. The power component includes a drive motor 5, which provides power to the lifting component and drives the worm 7 to rotate. The bottom of the drive motor 5 is fixedly connected to a support platform 6, which is fixedly connected to the top of the base 1. The output end of the drive motor 5 is fixedly connected to the side wall of the worm 7. The side wall of the base 1 is provided with a control console 2. The function of the control console 2 is to facilitate the operator to control the start and stop of the drive motor 5 and realize the operation of raising and lowering the pallet 4. The side wall of the control console 2 is fixedly connected to the inside of the base 1. The top of the pallet 4 is provided with multiple positioning blocks 13. The function of the positioning blocks 13 is to position the front axle of the loader. The bottom of the positioning blocks 13 is fixedly connected to the top of the pallet 4. The positioning blocks 13 are distributed at the four corners of the pallet 4.

[0034] Specifically, when using the loader front axle maintenance pallet, the operator first uses a lifting tool, such as a crane or forklift, to move the loader front axle above the pallet 4. The operator then secures the front axle to the pallet 4. Next, the operator starts the drive motor 5 via the control buttons on the control panel 2. The rotation of the drive motor 5 is transmitted to the worm gear 7 through its output end, causing the worm gear 7 to rotate. When the worm gear 7 rotates, the worm wheel 8 rotates around its own central axis under the drive of the worm gear 7. Because the linkage rod 9 is fixedly connected to the worm wheel 8, when the worm wheel 8 rotates, the linkage rod 9 also rotates. The rotation of the linkage rod 9 is transmitted to the gears 10 on both sides, causing the gears 10 to rotate. Under the influence of the gears 10, the rack 11 slides upwards inside the limit rail 12. Because the gears 10 and rack 1... In the first meshing phase, when gear 10 rotates, the teeth of gear 10 interact with the teeth of rack 11, converting the circular motion of gear 10 into the linear motion of rack 11. Under the guidance of limit rail 12, rack 11 moves upward linearly along the track of limit rail 12. Since the top of rack 11 is fixedly connected to the bottom of support plate 4, when rack 11 moves upward, support plate 4 also moves upward. The upward movement of support plate 4 causes the front axle placed on it to move upward as well, thus achieving the effect of quickly raising the front axle for easy maintenance by staff. When it is necessary to lower the front axle, the staff controls the drive motor 5 to reverse through control console 2. Drive motor 5 drives worm gear 7 to rotate in the opposite direction, and then through the transmission of worm wheel 8, linkage rod 9, gear 10 and rack 11, the support plate 4 and the front axle move downward and return to the initial position.

[0035] Reference Figure 3Each positioning block 13 has a locking pin 14 slidably connected inside. The locking pin 14 is made of carbon steel and its function is to insert into the holes on the front axle and positioning block 13 to fix the position of the front axle. Each locking pin 14 has a limiting plate 15 slidably connected to its inner wall at the top. The limiting plate 15 is made of metal plate and has holes inside that are consistent with the cross-section of the limiting block 21. Its function is to limit the displacement of the top pin 19 and the movable inner pin 17. Each locking pin 14 has multiple limiting balls 16 slidably connected to its inner bottom. The limiting balls 16 roll into the slots inside the positioning block 13 under the control of the movable inner pin 17 to lock the locking pin 14 and enhance the stability of the front axle fixation. The limiting balls 16 are distributed in a circumferential shape. Each locking pin 14 has a movable inner pin 17 slidably connected to its inner wall. Each movable inner pin 17 has a receiving groove 18 on its outer bottom wall. Its function is to receive the limiting balls 16 and control the position of the limiting balls 16 when the movable inner pin 17 moves. Each movable inner column 17 is fixedly connected to a top column 19, and each top column 19 is fixedly connected to a rotating handle 20. The rotating handle 20 provides an operating interface for the operator to control the movement of components such as the top column 19 and the movable inner column 17 by rotating and pressing the rotating handle 20. Each top column 19 has multiple limiting blocks 21 fixedly connected to its outer wall. The limiting blocks 21 cooperate with the limiting plate 15 when the rotating handle 20 is rotated to lock the position of the movable inner column 17. The limiting blocks 21 are distributed in a circumferential shape. Each top column 19 is provided with a limiting spring 22. The limiting spring 22 is compressed when the rotating handle 20 is pressed, storing elastic potential energy. When the rotating handle 20 is released, the elastic potential energy is released to push the top column 19 and the movable inner column 17 to reset, and to assist in locking the position of the movable inner column 17. One end of each limiting spring 22 is fixedly connected to the bottom of the top column 19, and the other end of each limiting spring 22 is fixedly connected to the inner wall of the locking column 14.

[0036] Specifically, align the holes on the front axle with the holes on the positioning block 13. The operator then aligns one end of the locking pin 14 with the hole on the positioning block 13 and inserts it into the hole. Once the locking pin 14 is fully inserted into the hole on the positioning block 13, the operator presses down on the rotating handle 20. Because the top pin 19 is fixedly connected to the rotating handle 20, the top pin 19 moves synchronously when the rotating handle 20 moves. Multiple limiting blocks 21 on the outer wall of the top pin 19 also move downwards with the displacement of the top pin 19. The limiting blocks 21 are inside the locking pin 14, passing through the limiting plate 15 from above. The reserved hole on plate 5 moves downwards towards the position below the limiting plate 15. During the downward displacement of the top column 19, the limiting spring 22 at its bottom is compressed, and its elastic potential energy continuously increases. At the same time, the displacement of the top column 19 causes the movable inner column 17 and its bottom receiving groove 18 to move downwards. The movable inner column 17 is fixedly connected to the top column 19. When the top column 19 moves, the movable inner column 17 moves synchronously, and its bottom receiving groove 18 also moves downwards. The limiting ball 16, which was originally inside the receiving groove 18, moves from inside the receiving groove 18 to the positioning block 1 when the receiving groove 18 moves downwards. 3. The internal groove rolls, and the limiting ball 16 rolls to the appropriate position in the groove inside the positioning block 13, locking the positioning block 13 and fixing the locking post 14. Then, the operator rotates the handle 20, which drives the top post 19 and the limiting block 21 on its outer wall to rotate together. The limiting block 21 is below the limiting plate 15 and rotates in a circle in the plane below the limiting plate 15 as the handle 20 rotates. Then, the operator releases the handle 20, and under the reset force of the limiting spring 22, the limiting spring 22 releases its elastic potential energy, pushing the top post 19 to move upward. Since the limiting block 21 forms a locking structure with the limiting plate 15 after rotation, the limiting block 21 is stuck below the limiting plate 15 and cannot be reset. This completes the limitation of the current position of the movable inner column 17. The movable inner column 17 remains in the current position, so that the limiting ball 16 is stably stuck inside the positioning block 13. This achieves the effect of quickly fixing the front axle. When the front axle needs to be removed, the operator rotates the handle 20 again to rotate the limiting block 21 to align with the hole of the limiting plate 15, and then pulls the handle 20 upward to return the limiting ball 16 to the receiving groove 18, so that the locking column 14 can be removed.

[0037] Working principle: When using the loader front axle maintenance pallet, the operator first uses a lifting tool to place the loader front axle on the pallet 4, then aligns the holes on the front axle with the holes on the positioning block 13. Next, the operator inserts the locking pin 14 into the hole. After insertion, the operator presses down on the handle 20. The displacement of the handle 20 causes the bottom pin 19 and multiple limiting blocks 21 on its outer wall to pass through the limiting plate 15, compressing the limiting spring 22. Simultaneously, it causes the movable inner pin 17 and its bottom receiving groove 18 to move downwards. The displacement of the receiving groove 18 causes the internal limiting ball 16 to roll into the groove inside the positioning block 13. Then, the handle 20 is rotated, causing the limiting block 21 to rotate. The handle 20 is then released, and the limiting spring 22 returns to its original position. With force applied, the limiting block 21 becomes stuck below the limiting plate 15 and cannot be reset, thus limiting the current position of the movable inner column 17. This allows the limiting ball 16 to be stably locked inside the positioning block 13, achieving the effect of quickly fixing the front axle. After the front axle is fixed, the operator controls the drive motor 5 inside the fixing box 3 to rotate via the control console 2. The rotation of the drive motor 5 drives the worm wheel 8 to rotate via the worm gear 7. The rotation of the worm wheel 8 drives the gears 10 on its left and right sides to rotate synchronously via the linkage rod 9. Under the influence of the gears 10, the rack 11 slides upward inside the limiting rail 12. The displacement of the rack 11 causes the entire support plate 4 to move upward, thereby causing the front axle to move upward, achieving the effect of quickly raising the front axle for easy maintenance by the operator.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A loader front axle maintenance tray, comprising a base (1), characterized in that: The base (1) is fixedly connected to a left-right symmetrical fixed box (3) on the top. A support plate (4) is provided above the fixed box (3). A lifting component is provided inside the fixed box (3). The lifting assembly includes symmetrical racks (11) on both sides. The top of each rack (11) is fixedly connected to the bottom of the support plate (4). The side walls of each rack (11) are slidably connected to limit rails (12). The side walls of each limit rail (12) are fixedly connected to the inner wall of the fixed box (3). A worm gear (7) is provided between the racks (11). One end of the worm gear (7) is rotatably connected to the inner wall of the fixed box (3), and the other end of the worm gear (7) is provided with a power assembly. A worm wheel (8) is provided above the worm (7), and the worm (7) meshes with the worm wheel (8). A linkage rod (9) is fixedly connected to the center of the worm wheel (8). Both ends of the linkage rod (9) are rotatably connected to the inner wall of the fixed box (3). A symmetrical gear (10) is fixedly connected to the outer wall of the linkage rod (9). The gear (10) is located on the left and right sides of the worm wheel (8), and the gear (10) meshes with the rack (11).

2. A loader front axle maintenance pallet according to claim 1, characterized in that: The power assembly includes a drive motor (5), the bottom of which is fixedly connected to a support platform (6), the bottom of which is fixedly connected to the top of the base (1), and the output end of the drive motor (5) is fixedly connected to the side wall of the worm (7).

3. A loader front axle maintenance pallet according to claim 1, characterized in that: The base (1) has a control console (2) on its side wall, and the side wall of the control console (2) is fixedly connected to the inside of the base (1).

4. A loader front axle maintenance pallet according to claim 1, characterized in that: The top of the pallet (4) is provided with multiple positioning blocks (13), the bottom of each positioning block (13) is fixedly connected to the top of the pallet (4), and the positioning blocks (13) are distributed at the four corners of the pallet (4).

5. A loader front axle maintenance pallet according to claim 4, characterized in that: Each positioning block (13) is slidably connected to a locking post (14), and each locking post (14) is slidably connected to a limiting plate (15) at the top of its inner wall. Each locking post (14) is slidably connected to a plurality of limiting balls (16) at the bottom of its inner wall. The limiting balls (16) are distributed in a circular shape.

6. A loader front axle maintenance pallet according to claim 5, characterized in that: The inner wall of each locking post (14) is slidably connected to a movable inner post (17), and the bottom of the outer wall of each movable inner post (17) is provided with a receiving groove (18).

7. A loader front axle maintenance pallet according to claim 6, characterized in that: Each of the movable inner columns (17) is fixedly connected to a top column (19), each of the top columns (19) is fixedly connected to a rotating handle (20), and each of the top columns (19) is fixedly connected to a plurality of limiting blocks (21) on the outer wall of the top column (19), the limiting blocks (21) being distributed in a circular shape.

8. A loader front axle maintenance pallet according to claim 7, characterized in that: Each of the top posts (19) is provided with a limit spring (22) at the bottom. One end of each limit spring (22) is fixedly connected to the bottom of the top post (19), and the other end of each limit spring (22) is fixedly connected to the inner wall of the locking post (14).

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