A heavy truck wheel edge reducer shell lubricating device

Abstract

This utility model relates to a grease-applying device for the wheel-side reducer housing of heavy-duty trucks, belonging to the field of axle assembly. The technical solution is as follows: a grease-applying device for the wheel-side reducer housing of heavy-duty trucks includes a fixing mechanism, which comprises a frame. A grease-applying mechanism mounting plate is installed on top of the frame, and a grease-applying mechanism is rotatably mounted on the mounting plate. Positioning support mechanisms and a power mechanism capable of driving the grease-applying mechanism to rotate are respectively provided on both sides of the mounting plate. The positioning support mechanism includes a base plate with two sets of positioning plates spaced a certain distance apart and parallel to the mounting plate. The positioning plates are provided with V-shaped grooves for positioning the outer circumference of the reducer housing. This solution solves the problems of low efficiency and poor uniformity of manual grease-applying by automating positioning and grease application. Simultaneously, the grease-applying mechanism is arranged laterally, with the opening of the reducer housing facing the grease-applying mechanism. Excess grease is re-coated onto the inner wall of the reducer housing by the rotating grease-applying mechanism, avoiding workshop contamination.

Description

Technical Field

[0001] This utility model relates to the field of vehicle axle assembly, and in particular to a grease-applying device for the wheel-side reducer housing of a heavy truck. Background Technology

[0002] Heavy trucks, due to their high loads and harsh operating conditions, typically employ a two-stage reduction structure in their axles to increase torque. In addition to the main reducer, they are also equipped with wheel-side reducers, a crucial component of the heavy truck's axle transmission system. These reducers further lower speeds and increase torque to meet the demands of heavy-duty transportation. Grease application is a critical step in the assembly of the wheel-side reducer assembly. Applying grease inside the reducer housing reduces friction and wear between assembled components, ensuring smooth subsequent assembly processes and extending service life. After installation, it lubricates the gears inside the reducer and ensures the sealing of connection points, preventing dust and impurities from entering.

[0003] Currently, there is a lack of equipment for applying grease to wheel-side reducer housings in axle production. Therefore, this process is mostly done manually. Manual grease application has many shortcomings. On the one hand, the uniformity of grease application is insufficient, and the grease width cannot be guaranteed. At the same time, excessive or uneven application is easy to occur during the application process, resulting in grease waste. On the other hand, manual operation is highly repetitive, increasing the labor burden of workers.

[0004] Existing lubrication equipment for other components, such as the wheel hub lubrication device disclosed in patent CN219334783U, all lubricate by rotating the workpiece, and the workpiece shaft is set vertically, which makes it easy for grease to drip and cause workshop pollution. Summary of the Invention

[0005] This invention addresses the problem that current grease coating equipment is not suitable for wheel-side reducer housings and that grease easily drips and contaminates the workshop, by providing a grease coating device for heavy-duty truck wheel-side reducer housings.

[0006] To solve the above problems, the technical solution adopted by this utility model is a grease-applying device for the wheel-side reducer housing of a heavy truck, including a fixing mechanism. The fixing mechanism includes a frame, and a grease-applying mechanism mounting plate is installed on the top of the frame. The grease-applying mechanism mounting plate is located in a vertical plane, and a grease-applying mechanism is rotatably mounted on the grease-applying mechanism mounting plate. A positioning support mechanism for fixing the reducer housing and a power mechanism for driving the grease-applying mechanism to rotate are provided on the frame. The positioning support mechanism and the power mechanism are respectively located on both sides of the grease-applying mechanism mounting plate. The positioning support mechanism includes a base plate, and a lifting mechanism is provided on the bottom surface of the base plate. A positioning component is provided on the base plate, and a positioning part for the outer circle of the reducer housing is provided on the positioning component. In this solution, the grease application mechanism and the power mechanism are placed on opposite sides to avoid operational interference. The overall layout is compact, improving space utilization. At the same time, through automated positioning and grease application, the problems of low efficiency and poor uniformity of manual grease application are solved. In addition, the grease application mechanism is arranged laterally, with the opening of the reducer housing facing the grease application mechanism. Excess grease still falls inside the reducer housing and is re-coated onto the inner wall of the reducer housing by the rotating grease application mechanism, avoiding workshop contamination and grease waste, thereby reducing grease consumption.

[0007] As a preferred embodiment of a grease-applying device for a heavy-duty truck wheel-side reducer housing, the positioning assembly includes two sets of positioning plates parallel to the mounting plate of the grease-applying mechanism, with a certain distance between the two sets of positioning plates. The outer circle positioning part of the reducer housing is located on the upper edge of the positioning plate, and the outer circle positioning part of the reducer housing is a V-shaped groove. The V-shaped notch of the positioning support mechanism can be adapted to the outer circle of reducer housings of different specifications, achieving precise positioning.

[0008] As a preferred embodiment of a grease-applying device for the wheel-side reducer housing of heavy-duty trucks, the lifting mechanism includes a positive and negative lead screw, which is rotatably mounted in the frame. A nut slider is mounted on each of the two threaded sections of the lead screw. Two support rods are hinged to the nut sliders and are located on the upper and lower sides of the lead screw, respectively. A lifting plate is hinged to the upper ends of the two support rods above the lead screw, and a lifting mechanism mounting plate is hinged to the lower ends of the two support rods below the lead screw. The lifting plate is fixedly mounted on the bottom surface of the base plate, and the lifting mechanism mounting plate is fixedly connected to the frame. The positive and negative lead screws and support rods form a jack structure, ensuring that the positioning support mechanism remains horizontal during lifting, preventing the reducer housing from tilting. Precise lifting control is achieved through threaded transmission, providing stable lifting force and sufficient support to prevent the reducer housing from shaking. It also meets the large space requirements for loading materials, improving operational convenience.

[0009] As a preferred embodiment of a grease-applying device for the wheel-side reducer housing of heavy-duty trucks, a guide mechanism is further provided between the base plate and the frame. The guide mechanism includes a guide rod, the lower end of which is provided with a guide rod mounting plate and fixedly connected to the frame. A linear bearing is slidably mounted on the guide rod and fixedly connected to the base plate. This further constrains the movement trajectory of the positioning support mechanism, preventing tilting caused by uneven force during lifting, ensuring that the central axis of the reducer housing and the brush head axis are always collinear, and improving positioning accuracy. The linear bearing reduces sliding friction, making the lifting process smoother and extending the service life of the equipment.

[0010] As a preferred embodiment of a grease application device for heavy-duty truck wheel-side reducer housings, the grease application mechanism includes a grease application mechanism shaft, a mounting flange on a mounting plate, and the shaft rotatably mounted within the mounting flange. A brush head is located at one end of the shaft near the positioning support mechanism, situated on the outer circumferential surface of the shaft. The mounting flange ensures stable shaft rotation, and the brush head, located on the outer circumferential surface, precisely conforms to the grease-to-be-applied area. The rotary grease application method ensures more even grease distribution, avoiding issues of missed areas and accumulation associated with manual application. The integrated design of the brush head and shaft reduces vibration and improves grease application consistency.

[0011] As a preferred embodiment of a grease coating device for a heavy-duty truck wheel-side reducer housing, the power mechanism includes a main motor, which is mounted in the frame via a motor mounting base, and the output shaft of the main motor is connected to the end of the grease coating mechanism's rotating shaft that is away from the positioning support mechanism.

[0012] As a preferred embodiment of a grease coating device for heavy-duty truck wheel-side reducer housings, a transmission mechanism is further provided between the main motor and the rotating shaft of the grease coating mechanism. The transmission mechanism includes a driving synchronous pulley, which is connected to the output shaft of the main motor via a coupling. A driven synchronous pulley is mounted on the rotating shaft of the grease coating mechanism. A synchronous belt is wound around both the driving and driven synchronous pulleys. Synchronous belt drive features smooth transmission, low noise, and precise transmission ratio, ensuring that the brush head speed matches the motor speed and avoiding uneven grease coating caused by speed fluctuations. The coupling buffers the connection impact between the motor and the pulley, reducing equipment wear. Compared to gear transmission, synchronous belt maintenance is simpler, reducing equipment operation and maintenance costs.

[0013] As a preferred embodiment of a grease-applying device for the wheel-side reducer housing of a heavy-duty truck, the frame further includes a grease supply mechanism. This mechanism comprises a grease reservoir, and a grease inlet pipe is located at the end of the grease-applying mechanism's rotating shaft furthest from the positioning support mechanism. The grease inlet pipe is connected to the brush head inside the rotating shaft, and a grease delivery pipe connects the grease inlet pipe to the grease reservoir. A grease pump is mounted on the delivery pipe. The grease supply mechanism enables automated grease delivery; the grease pump precisely controls the grease supply, avoiding waste; the grease reservoir provides a sufficient grease source, reducing the frequency of manual grease replenishment; and the grease inlet pipe is integrated into the rotating shaft, preventing pipe entanglement and ensuring smooth grease supply.

[0014] As a preferred embodiment of a grease-applying device for the wheel-side reducer housing of heavy-duty trucks, the grease-applying mechanism mounting plate is provided with two positioning sleeves, which are respectively located on both sides of the grease-applying mechanism. A tie rod is fixedly installed in each positioning sleeve, and a grease inlet pipe positioning plate is fixed between the two tie rods. The end of the grease inlet pipe is fixedly installed on the grease inlet pipe positioning plate. This design prevents the grease inlet pipe from shifting or falling off due to equipment vibration or grease supply pressure, reduces tension between the grease inlet pipe and the rotating shaft of the grease-applying mechanism, and ensures a stable grease supply path. The symmetrical design on both sides ensures balanced force distribution, further improving the reliability of the grease inlet pipe and reducing the risk of grease supply interruption.

[0015] As a preferred embodiment of a grease application device for a heavy-duty truck wheel-side reducer housing, the grease application mechanism mounting plate is further provided with a positioning rod on the side facing the positioning support mechanism, and the positioning rod is perpendicular to the grease application mechanism mounting plate. The positioning rod provides an axial positioning reference for the reducer housing, ensuring that the relative position of the brush head and the area to be greased is consistent each time grease is applied.

[0016] As a preferred embodiment of a grease application device for heavy-duty truck wheel-side reducer housings, multiple brush heads are provided, and these brush heads are evenly arranged circumferentially along the rotation axis of the grease application mechanism. The even circumferential distribution of multiple brush heads increases the grease contact area, shortens the grease application time per cycle, and improves efficiency and grease application uniformity.

[0017] As can be seen from the above technical solutions, the advantages of this utility model are as follows: This solution provides an automated grease application device suitable for the wheel-side reducer housing of heavy-duty trucks. The V-shaped notch of the positioning support mechanism can be adapted to the outer circle of reducer housings of different specifications, achieving precise positioning. The grease application mechanism and the power mechanism are placed on opposite sides to avoid operational interference. The overall layout is compact, improving space utilization. The grease application mechanism is arranged horizontally, with the opening of the reducer housing facing the grease application mechanism. Excess grease can fall into the housing and be re-coated by the rotating grease application mechanism, avoiding workshop pollution and grease waste, and reducing grease consumption. The positive and negative screws of the lifting mechanism and the support rod form a jack structure to ensure the horizontal lifting of the positioning support mechanism. Precise control is achieved through threaded transmission, resulting in stable lifting force, meeting the material loading space requirements, and improving operational convenience. The guide mechanism further constrains the movement trajectory, preventing skew and ensuring that the reducer housing and brush head axis are collinear, improving positioning accuracy. The linear bearing reduces friction, making lifting smooth and extending equipment life. The mounting flange of the grease applicator ensures stable rotation of the applicator shaft. The brush head, located on the outer circumference of the shaft, precisely conforms to the area to be greased. Rotational grease application ensures more even distribution, preventing missed areas and accumulation. The integrated design of the brush head and shaft reduces vibration and improves application consistency. The synchronous belt drive of the transmission mechanism is smooth, low-noise, and has a precise transmission ratio, ensuring stable brush head speed and preventing uneven grease application. The coupling buffers impacts and reduces wear. The synchronous belt is easy to maintain, reducing operating costs. The grease supply mechanism achieves automated grease delivery. The grease pump precisely controls the grease supply, the grease tank reduces the frequency of manual grease replenishment, and the built-in grease inlet pipe prevents pipe tangling and ensures smooth grease supply. The grease inlet pipe positioning structure prevents pipe misalignment and detachment, ensuring a stable grease supply path. The symmetrical design on both sides improves fixation reliability and reduces the risk of grease supply interruption. The positioning rod provides an axial positioning reference for the reducer housing, ensuring the relative position of the brush head and the area to be greased is consistent. Multiple brush heads are evenly distributed circumferentially, increasing the contact area, shortening grease application time, and improving efficiency and uniformity. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram illustrating a specific embodiment of the present invention. Figure 1 .

[0020] Figure 2 This is a structural diagram illustrating a specific embodiment of the present invention. Figure 2 .

[0021] Figure 3This is a schematic diagram of the fixing mechanism and the positioning support mechanism in a specific embodiment of this utility model.

[0022] Figure 4 This is a schematic diagram of the lifting mechanism in a specific embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the power mechanism and transmission mechanism in a specific embodiment of this utility model.

[0024] Figure 6 This is a schematic diagram of the grease supply mechanism in a specific embodiment of this utility model.

[0025] Explanation of main figure symbols 1. Fixing mechanism, 101. Frame, 102. Grease application mechanism mounting plate, 103. Positioning sleeve; 2. Grease application mechanism, 201. Brush head, 202. Grease application mechanism shaft, 203. Mounting flange, 204. Tie rod, 205. Grease inlet pipe, 206. Grease inlet pipe positioning plate; 3. Transmission mechanism, 301. Driven synchronous pulley, 302. Synchronous belt, 303. Driven synchronous pulley; 4. Power mechanism, 401. Motor mounting base, 402. 403. Main motor; 5. Coupling; 6. Positioning support mechanism; 7. Positioning plate; 8. Base plate; 9. Positioning rod; 10. Lifting mechanism; 11. Lifting plate; 12. Support rod; 13. Lifting mechanism mounting plate; 14. Positive and negative lead screws; 15. Lead screw nut and slider; 16. Lifting motor assembly; 17. Lifting controller; 28. Grease supply mechanism; 19. Grease tank; 20. Grease pump; 30. Grease delivery pipe. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0027] like Figure 1 , 2As shown, a grease-applying device for a heavy-duty truck wheel-side reducer housing includes a fixing mechanism 1. The fixing mechanism 1 includes a frame 101 constructed from aluminum profiles. The frame 101 is a rectangular platform structure. A grease-applying mechanism mounting plate 102 is installed on the top of the frame 101. The grease-applying mechanism mounting plate 102 is located in a vertical plane. A grease-applying mechanism 2 is rotatably mounted on the grease-applying mechanism mounting plate 102. On the frame 101, a positioning support mechanism 5 for fixing the reducer housing is provided on one side of the grease-applying mechanism mounting plate 102. A lifting mechanism 6 is provided below the positioning support mechanism 5, and lifting and lowering are achieved through the lifting mechanism 6. A power mechanism 4 and a transmission mechanism 3 capable of driving the grease-applying mechanism 2 to rotate are provided on the other side of the grease-applying mechanism mounting plate 102.

[0028] like Figure 3 , 4 As shown, the positioning support mechanism 5 includes a base plate 502, and a lifting mechanism 6 is provided on the bottom surface of the base plate 502. Two sets of positioning plates 501 are provided on the base plate 502. The two sets of positioning plates 501 are spaced a certain distance apart and are parallel to the grease application mechanism mounting plate 102. A V-shaped groove is provided on the upper edge of the positioning plate 501. Specifically, the positioning plate 501 can be a whole panel with a V-shaped groove in the middle of the upper edge, or as shown in the figure. Figure 3 As shown, a set of positioning plates 501 can be made of two coplanar plates, with bevels set at the adjacent top corners of the two plates, forming a V-shaped notch; the lifting mechanism 6 includes a positive and negative lead screw 604, which is rotatably installed in the frame 101. Nut sliders 605 are respectively installed on the two threads of the positive and negative lead screw 604. Two support rods 602 are hinged to the nut sliders 605 and are located on the upper and lower sides of the positive and negative lead screw 604, respectively. The upper ends of the two support rods 602 above the positive and negative lead screw 604 are hinged to a lifting plate 601, and the lower ends of the two support rods 602 below the positive and negative lead screw 604 are hinged to a lifting mechanism mounting plate 603. The lifting plate 601 is fixedly installed on the bottom surface of the base plate 502, and the lifting mechanism mounting plate 603 is fixedly connected to the frame 101. A guide mechanism 7 is also provided between the base plate 502 and the frame 101. The guide mechanism 7 includes a guide rod 701. The lower end of the guide rod 701 is provided with a guide rod mounting plate 703 and is fixedly connected to the frame 101. A linear bearing 702 is slidably arranged on the guide rod 701 and is fixedly connected to the base plate 502.

[0029] like Figure 5 , 6As shown, the grease application mechanism 2 includes a grease application mechanism rotating shaft 202, and a mounting flange 203 is provided on the grease application mechanism mounting plate 102. The grease application mechanism rotating shaft 202 is rotatably mounted in the mounting flange 203. A brush head 201 is provided at one end of the grease application mechanism rotating shaft 202 near the positioning support mechanism 5. The brush head 201 is located on the outer circumferential surface of the grease application mechanism rotating shaft 202. In this embodiment, multiple brush heads 201 are provided, and the multiple brush heads 201 are evenly arranged along the circumference of the grease application mechanism rotating shaft 202. The power mechanism 4 includes a main motor 402, which is mounted in the frame 101 via a motor mounting base 401. The output shaft of the main motor 402 is connected to the end of the coating mechanism shaft 202 away from the positioning support mechanism 5. The transmission mechanism 3 includes a driving synchronous pulley 303, which is connected to the output shaft of the main motor 402 via a coupling 403. A driven synchronous pulley 301 is mounted on the coating mechanism shaft 202. A synchronous belt 303 is arranged around both the driving synchronous pulley 303 and the driven synchronous pulley 301.

[0030] The frame 101 also includes a grease supply mechanism 8, which includes a grease storage tank 801. A grease inlet pipe 205 is provided at the end of the coating mechanism's rotating shaft 202 furthest from the positioning support mechanism 5. The grease inlet pipe 205 is connected to the brush head 201 inside the coating mechanism's rotating shaft 202. The grease inlet pipe 205 and the grease storage tank 801 are connected by a grease delivery pipe 803, which is equipped with a grease pump 802. Two positioning sleeves 103 are provided on the coating mechanism mounting plate 102, respectively located on both sides of the coating mechanism 2. A pull rod 204 is fixedly installed in each positioning sleeve 103, and a grease inlet pipe positioning plate 206 is fixedly connected between the two pull rods 204. The end of the grease inlet pipe 205 is fixedly installed on the grease inlet pipe positioning plate 206. The side of the grease application mechanism mounting plate 102 facing the positioning support mechanism 5 is also provided with a positioning rod 503, which is perpendicular to the grease application mechanism mounting plate 102.

[0031] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: This solution provides an automated grease application device suitable for the wheel-side reducer housing of heavy trucks. The V-shaped notch of the positioning support mechanism can be adapted to the outer circle of reducer housings of different specifications, achieving precise positioning. The grease application mechanism and the power mechanism are placed on opposite sides to avoid operational interference. The overall layout is compact, improving space utilization. The grease application mechanism is arranged horizontally, with the opening of the reducer housing facing the grease application mechanism. Excess grease can fall into the housing and be re-coated by the rotating grease application mechanism, avoiding workshop pollution and grease waste, and reducing grease consumption. The positive and negative screws of the lifting mechanism and the support rod form a jack structure to ensure the horizontal lifting of the positioning support mechanism. Precise control is achieved through threaded transmission, resulting in stable lifting force, meeting the material loading space requirements, and improving operational convenience. The guide mechanism further constrains the movement trajectory, prevents skew, ensures that the reducer housing and the brush head axis are collinear, improves positioning accuracy, and the linear bearing reduces friction, making lifting smooth and extending equipment life. The mounting flange of the grease applicator ensures stable rotation of the applicator shaft. The brush head, located on the outer circumference of the shaft, precisely conforms to the area to be greased. Rotational grease application ensures more even distribution, preventing missed areas and accumulation. The integrated design of the brush head and shaft reduces vibration and improves application consistency. The synchronous belt drive of the transmission mechanism is smooth, low-noise, and has a precise transmission ratio, ensuring stable brush head speed and preventing uneven grease application. The coupling buffers impacts and reduces wear. The synchronous belt is easy to maintain, reducing operating costs. The grease supply mechanism achieves automated grease delivery. The grease pump precisely controls the grease supply, the grease tank reduces the frequency of manual grease replenishment, and the built-in grease inlet pipe prevents pipe tangling and ensures smooth grease supply. The grease inlet pipe positioning structure prevents pipe misalignment and detachment, ensuring a stable grease supply path. The symmetrical design on both sides improves fixation reliability and reduces the risk of grease supply interruption. The positioning rod provides an axial positioning reference for the reducer housing, ensuring the relative position of the brush head and the area to be greased is consistent. Multiple brush heads are evenly distributed circumferentially, increasing the contact area, shortening grease application time, and improving efficiency and uniformity.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grease-applying device for the wheel-side reducer housing of a heavy-duty truck, characterized in that, The system includes a fixing mechanism (1), which includes a frame (101). A grease applicator mounting plate (102) is installed on the top of the frame (101). The grease applicator mounting plate (102) is located in a vertical plane. A grease applicator (2) is rotatably mounted on the grease applicator mounting plate (102). A positioning support mechanism (5) for fixing the reducer housing and a power mechanism (4) for driving the grease applicator (2) to rotate are provided on the frame (101). The positioning support mechanism (5) and the power mechanism (4) are located on both sides of the grease applicator mounting plate (102). The positioning support mechanism (5) includes a base plate (502). A lifting mechanism (6) is provided on the bottom surface of the base plate (502). A positioning component is provided on the base plate (502). A reducer housing outer circle positioning part is provided on the positioning component.

2. The heavy truck wheel hub reducer shell lubricating device according to claim 1, characterized in that, The positioning component includes two sets of positioning plates (501) parallel to the grease applicator mounting plate (102), with a certain distance between the two sets of positioning plates (501). The outer circle positioning part of the reducer housing is located on the upper edge of the positioning plate (501), and the outer circle positioning part of the reducer housing is a V-shaped groove.

3. The heavy truck wheel hub reducer shell lubricating device according to claim 1, characterized in that, The lifting mechanism (6) includes a positive and negative lead screw (604), which is rotatably installed in the frame (101). A nut slider (605) is installed on each of the two threads of the positive and negative lead screw (604). Two support rods (602) are hinged on the nut slider (605) and are located on the upper and lower sides of the positive and negative lead screw (604). The upper ends of the two support rods (602) above the positive and negative lead screw (604) are hinged together to a lifting plate (601). The lower ends of the two support rods (602) below the positive and negative lead screw (604) are hinged together to a lifting mechanism mounting plate (603). The lifting plate (601) is fixedly installed on the bottom surface of the base plate (502). The lifting mechanism mounting plate (603) is fixedly connected to the frame (101).

4. The heavy truck wheel reducer shell lubricating device according to claim 3, characterized in that, A guide mechanism (7) is also provided between the base plate (502) and the frame (101). The guide mechanism (7) includes a guide rod (701). The lower end of the guide rod (701) is provided with a guide rod mounting plate (703). The guide rod mounting plate (703) is fixedly connected to the frame (101). A linear bearing (702) is slidably provided on the guide rod (701). The linear bearing (702) is fixedly connected to the base plate (502).

5. The heavy truck wheel hub reducer shell lubricating device according to claim 1, characterized in that, The grease application mechanism (2) includes a grease application mechanism rotating shaft (202), and a mounting flange (203) is provided on the grease application mechanism mounting plate (102). The grease application mechanism rotating shaft (202) is rotatably installed in the mounting flange (203). A brush head (201) is provided at one end of the grease application mechanism rotating shaft (202) near the positioning support mechanism (5). The brush head (201) is located on the outer circumferential surface of the grease application mechanism rotating shaft (202).

6. The grease-applying device for the heavy-duty truck wheel-side reducer housing according to claim 5, characterized in that, The power mechanism (4) includes a main motor (402), which is mounted in the frame (101) via a motor mounting base (401). The output shaft of the main motor (402) is connected to the end of the grease application mechanism shaft (202) away from the positioning support mechanism (5). A transmission mechanism (3) is also provided between the main motor (402) and the grease application mechanism shaft (202). The transmission mechanism (3) includes a driving synchronous pulley (303), which is connected to the output shaft of the main motor (402) via a coupling (403). A driven synchronous pulley (301) is mounted on the grease application mechanism shaft (202). A synchronous belt (302) is arranged around the driving synchronous pulley (303) and the driven synchronous pulley (301).

7. The grease coating device for the heavy-duty truck wheel-side reducer housing according to claim 4, characterized in that, The frame (101) is also provided with a grease supply mechanism (8), which includes a grease storage tank (801). The grease storage tank (801) has a grease inlet pipe (205) at one end of the grease application mechanism shaft (202) away from the positioning support mechanism (5). The grease inlet pipe (205) is connected to the brush head (201) inside the grease application mechanism shaft (202). The grease inlet pipe (205) and the grease storage tank (801) are connected by a grease delivery pipe (803). The grease delivery pipe (803) is provided with a grease pump (802).

8. The grease coating device for the heavy-duty truck wheel-side reducer housing according to claim 7, characterized in that, The grease applicator mounting plate (102) is provided with two positioning sleeves (103). The two positioning sleeves (103) are respectively located on both sides of the grease applicator (2). A pull rod (204) is fixedly installed in the positioning sleeve (103). A grease inlet tube positioning plate (206) is fixed between the two pull rods (204). The end of the grease inlet tube (205) is fixedly installed on the grease inlet tube positioning plate (206).

9. The heavy truck wheel hub reducer shell lubricating device according to claim 1, characterized in that, The grease applicator mounting plate (102) is also provided with a positioning rod (503) on the side facing the positioning support mechanism (5), and the positioning rod (503) is perpendicular to the grease applicator mounting plate (102).

10. The heavy truck wheel reducer housing lubricating device according to claim 4, characterized in that, Multiple brush heads (201) are provided, and the multiple brush heads (201) are evenly arranged around the circumference of the coating mechanism shaft (202).

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