An oil immersion device for an automobile differential housing

Abstract

An oil immersion device for automobile differential housing, including oil immersion tank, oil immersion tank is installed on mounting bracket, the bottom left side of the oil immersion tank is provided with blowdown valve, the central part of the oil immersion tank is provided with support seat, the central part of the support seat is provided with support column, the upper end surface of the support column is connected and fixed with the lower tray for supporting the differential housing, the upper end of the oil immersion tank is provided with tank cover, the central part of the tank cover is provided with transmission mechanism, the transmission mechanism includes driving gear and driven gear, the driving gear and the driven gear are engaged with each other, the upper end of the driving gear is connected and fixed with motor, the driven gear is connected and fixed with transmission shaft, the lower end of the transmission shaft is connected and fixed with upper tray, the space between the upper tray and the lower tray is for placing differential housing, the left side of the tank cover is provided with oil inlet.

Description

Technical Field

[0001] This utility model relates to the field of automotive differential manufacturing technology, specifically to an oil immersion device for automotive differential housings. Background Technology

[0002] As a key component of the vehicle's transmission system, the rust prevention treatment of the differential housing's surface and internal structure is crucial for ensuring the vehicle's stability and safety. During the manufacturing process, the metal surface of the differential housing is prone to performance degradation due to oxidation and corrosion, which in turn affects the overall vehicle performance and service life. Therefore, after the differential housing is manufactured, it usually needs to undergo an oil immersion rust prevention treatment to form a protective film on its surface, isolating it from air and moisture, thereby achieving the purpose of rust prevention. The oil immersion treatment not only extends the service life of the differential housing but also improves the reliability and safety of the entire vehicle.

[0003] In existing technologies, the oil immersion process for automotive differential housings typically involves manual operation or simple mechanized equipment. First, the differential housing is thoroughly cleaned to ensure its surface is free of oil and impurities. Then, an appropriate amount of rust-preventive oil is prepared, and the differential housing is completely immersed in the oil for a sufficient duration to ensure the oil fully penetrates the housing surface. During immersion, the housing can be gently shaken or a brush or similar tool can be used to help spread the rust-preventive oil evenly. After immersion, the differential housing is removed and placed vertically to allow excess rust-preventive oil to drip off naturally. Finally, the immersion housing is inspected to ensure that a uniform protective film of rust-preventive oil is applied to the surface, with no gaps or areas where the coating is too thin. This process forms an effective rust-preventive layer on the differential housing surface, isolating it from air and moisture, thus achieving rust prevention.

[0004] However, manual operation has the following problems. First, the lack of an intelligent liquid level control mechanism leads to large fluctuations in liquid level, affecting the uniformity and efficiency of oil immersion. Second, the differential housing cannot automatically rotate slowly during the oil immersion process, which prevents the rust-preventive oil from fully penetrating the complex internal structure of the housing, thus affecting the rust-preventive effect. In addition, the existing equipment is inconvenient in terms of replacing and cleaning the differential housing, with long replacement time and difficult cleaning, which not only reduces production efficiency but also increases the maintenance cost of the equipment. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an oil-immersing device for automotive differential housings. This oil-immersing device can improve production efficiency and reduce equipment maintenance costs.

[0006] The purpose of this utility model is achieved by the following solution: an oil immersion device for an automotive differential housing, comprising an oil immersion tank, the oil immersion tank being mounted on a mounting bracket, a drain valve being provided on the bottom left side of the oil immersion tank, a support base being provided in the center of the oil immersion tank, a support column being provided in the center of the support base, the upper end of the support column being connected and fixed to a lower tray for supporting the differential housing, a tank cover being provided at the upper end of the oil immersion tank, a transmission mechanism being provided in the center of the tank cover, the transmission mechanism comprising a driving gear and a driven gear, the driving gear and the driven gear meshing with each other, the upper end of the driving gear being connected and fixed to a motor, the driven gear being connected and fixed to a transmission shaft, the lower end of the transmission shaft being connected and fixed to an upper tray, the space between the upper tray and the lower tray being a space for placing the differential housing, and an oil inlet being provided on the left side of the tank cover.

[0007] A cleaning mechanism is provided on the outer circumference side of the oil immersion tank. The cleaning mechanism includes a cleaning interface and multiple cleaning nozzles are provided on the cleaning interface. The cleaning nozzles extend into the oil immersion tank through the side wall of the oil immersion tank. A control valve is provided between the cleaning nozzles and the cleaning interface.

[0008] Both ends of the can lid are connected and fixed to the adjustment mechanism. The adjustment mechanism includes a longitudinal telescopic rod that is connected and fixed to the can lid. The lower end of the longitudinal telescopic rod is connected and fixed to the longitudinal seat. The longitudinal seat is connected and fixed to the convex block. The convex block is installed in the convex groove of the transverse seat. The transverse seat is connected and fixed to the outer wall of the oil immersion tank. A transverse telescopic rod extends into the convex groove and is connected and fixed to the convex block.

[0009] The transmission mechanism is housed in the mounting box.

[0010] A high-precision liquid level sensor is installed on the upper inner wall of the oil immersion tank.

[0011] The upper tray has an oil inlet hole in the center and multiple upward lifting pads are arranged axially downward around the lower circumference of the upper tray. The lower tray has multiple oil outlet holes in the middle and multiple downward lifting pads are arranged axially upward around the upper circumference of the lower tray.

[0012] A bearing is installed between the support base and the support column for support.

[0013] The advantages of this utility model are: 1. The oil immersion device is equipped with a transmission mechanism that drives the differential housing to rotate in the oil immersion tank, so that the rust-preventive oil can fully penetrate into the complex internal structure of the differential housing, resulting in good rust prevention.

[0014] 2. A cleaning mechanism is installed on the outside of the oil immersion tank and extends into the tank to facilitate cleaning of the inside of the tank and the differential housing, allowing some residue inside the tank to be discharged through the drain valve.

[0015] 3. The can lid is fixed to the adjustment mechanism at both ends. The can lid can be removed by moving the horizontal telescopic rod and the vertical telescopic rod to replace the differential housing. Replacement is convenient.

[0016] 4. A high-precision liquid level sensor is installed on the upper part of the inner wall of the oil immersion tank, which can accurately monitor the changes in the liquid level of the rust-preventive oil inside the tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is the front view of this utility model.

[0019] Figure 3 This is a cross-sectional view along the AA direction of this utility model.

[0020] Figure 4 This is a sectional view of the present invention along the BB direction.

[0021] Figure 5 This is a schematic diagram of the upper and lower trays in this utility model. Detailed Implementation

[0022] like Figures 1 to 5 As shown, an oil-immersing device for an automotive differential housing includes an oil-immersing tank 1, which is mounted on a mounting bracket. A drain valve 2 is located on the bottom left side of the oil-immersing tank 1. A support base 3 is located in the center of the oil-immersing tank 1, and a support column 5 is located in the center of the support base 3. A bearing 4 is installed between the support base 3 and the support column for support. The upper end of the support column 5 is connected and fixed to a lower tray 6 for supporting the differential housing 30. A tank cover 9 is located at the upper end of the oil-immersing tank 1, and a transmission mechanism is located in the center of the tank cover 9. The transmission mechanism is housed in a mounting box 10. The transmission mechanism includes a driving gear 19 and a driven gear 18, which mesh with each other. The upper end of the driving gear 19 is connected and fixed to a motor 14, and the driven gear 18 is connected and fixed to a drive shaft 12. The lower end of the drive shaft 12 is connected and fixed to an upper tray 15. The space between the upper tray 15 and the lower tray 6 is for placing the differential housing 30. Both the upper tray 15 and the lower tray 6 are circular trays. An oil inlet 16 is provided in the center of the upper tray 15. Multiple upward-facing support pads 17 are axially arranged around the lower circumference of the upper tray 15. Multiple oil outlet holes 7 are provided in the middle of the lower tray 6. Multiple upward-facing support pads 8 are axially arranged around the upper circumference of the lower tray 6. The upward-facing support pads 17 and 8 support the differential housing 3. An oil inlet 11 is provided on the left side of the tank cover 9. A high-precision liquid level sensor 20 is provided on the upper inner wall of the immersion tank 1.

[0023] A cleaning mechanism is provided on the outer circumference side of the oil immersion tank 1. The cleaning mechanism includes a cleaning interface 28, and multiple cleaning nozzles 27 are provided on the cleaning interface 28. The cleaning nozzles 27 extend into the oil immersion tank 1 through the side wall of the oil immersion tank 1. A control valve 29 is provided between the cleaning nozzles 27 and the cleaning interface 28. The cleaning nozzles 27 clean the inside of the oil immersion tank 1 and the differential housing 30.

[0024] Both ends of the can lid 9 are connected and fixed to the adjustment mechanism. The adjustment mechanism includes a longitudinal telescopic rod 25 that is connected and fixed to the can lid 9. The lower end of the longitudinal telescopic rod 25 is connected and fixed to the longitudinal seat 26. The longitudinal seat 26 is connected and fixed to the convex block 22. The convex block 22 is installed in the convex groove 24 of the transverse seat 23. The transverse seat 23 is connected and fixed to the outer wall of the oil immersion tank 1. A transverse telescopic rod 21 extends into the convex groove 24 and is connected and fixed to the convex block 22.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An oil immersion device for an automotive differential housing, comprising an oil immersion tank (1) mounted on a mounting bracket, characterized in that: A drain valve (2) is provided on the bottom left side of the oil immersion tank (1). A support base (3) is provided in the center of the oil immersion tank (1). A support column (5) is provided in the center of the support base (3). The upper end of the support column (5) is connected and fixed to the lower tray (6) used to support the differential housing (30). A tank cover (9) is provided at the upper end of the oil immersion tank (1). A transmission mechanism is provided in the center of the tank cover (9). The transmission mechanism includes a drive gear (19) and a driven gear (18). The drive gear (19) and the driven gear (18) mesh with each other. The upper end of the drive gear (19) is connected and fixed to the motor (14). The driven gear (18) is connected and fixed to the transmission shaft (12). The lower end of the transmission shaft (12) is connected and fixed to the upper tray (15). The space between the upper tray (15) and the lower tray (6) is for placing the differential housing (30). An oil inlet (11) is provided on the left side of the tank cover (9).

2. The oil immersion device for an automotive differential housing according to claim 1, characterized in that: A cleaning mechanism is provided on the outer circumference side of the oil immersion tank (1). The cleaning mechanism includes a cleaning interface (28). Multiple cleaning nozzles (27) are provided on the cleaning interface (28). The cleaning nozzles (27) extend into the oil immersion tank (1) through the side wall of the oil immersion tank (1). A control valve (29) is provided between the cleaning nozzles (27) and the cleaning interface (28).

3. The oil immersion device for an automotive differential housing according to claim 1, characterized in that: The two ends of the can lid (9) are connected and fixed to the adjustment mechanism. The adjustment mechanism includes a longitudinal telescopic rod (25) connected and fixed to the can lid (9). The lower end of the longitudinal telescopic rod (25) is connected and fixed to the longitudinal seat (26). The longitudinal seat (26) is connected and fixed to the convex block (22). The convex block (22) is installed in the convex groove (24) of the transverse seat (23). The transverse seat (23) is connected and fixed to the outer wall of the oil immersion tank (1). A transverse telescopic rod (21) extends into the convex groove (24) and is connected and fixed to the convex block (22).

4. The oil immersion device for an automotive differential housing according to claim 1, characterized in that: The transmission mechanism is housed in the mounting box (10).

5. The oil immersion device for an automotive differential housing according to claim 1, characterized in that: A high-precision liquid level sensor (20) is installed on the upper end of the inner wall of the oil immersion tank (1).

6. The oil immersion device for an automotive differential housing according to claim 1, characterized in that: The upper tray (15) has an oil inlet hole (16) in the center, and multiple upper lifting pads (17) are arranged axially downward around the lower end of the upper tray (15). The lower tray (6) has multiple oil outlet holes (7) in the middle, and multiple lower lifting pads (8) are arranged axially upward around the upper end of the lower tray (6).

7. The oil immersion device for an automotive differential housing according to claim 1, characterized in that: A bearing (4) is provided between the support base (3) and the support column for support.

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