Gearbox shell

Abstract

The utility model discloses a gearbox shell which specifically comprises a shell body and an oil pan arranged on the shell body, an oil liquid transfer space is defined by the oil pan and the shell body, an oil drainage port is formed in the oil pan, and a blocking piece is arranged on the oil drainage port. And the water spraying assembly is used for flushing the inner wall of the oil liquid transfer space. According to the scheme, the water spraying assembly is arranged to flush the inner wall of the oil liquid transfer space, oil sludge and the like in the oil pan can be flushed under the condition that the oil pan does not need to be detached, or when the oil pan needs to be detached, lubricating oil which is attached to the oil liquid transfer space and does not drop temporarily can be flushed, the lubricating oil flows out along the oil discharging opening, and the oil pan can be conveniently detached. And the problem of large-range oil dripping when the oil pan is opened is avoided, the risk of environmental pollution is reduced, and the cleaning work is relieved.

Description

Technical Field

[0001] This utility model belongs to the field of transmission technology, and in particular relates to a transmission housing. Background Technology

[0002] The main function of a transmission is to adjust the driving force and speed of a car in real time to adapt to the actual road conditions encountered during use, such as starting and stopping quickly, driving at low or high speeds, accelerating, decelerating, climbing hills, and reversing. A transmission mainly consists of a transmission housing and a gearbox installed inside it. By filling the transmission with lubricating oil, the service life of the transmission can be extended.

[0003] The lubricating oil in the transmission needs to be changed periodically after a certain period of use. The conventional replacement methods include gravity replacement and flushing machine replacement. In the gravity replacement method, the lubricating oil is allowed to flow out freely under the action of gravity by opening the fastening nut on the oil pan under the transmission housing. After the oil pan stops flowing out, new lubricating oil can be added.

[0004] In actual lubricant changes, there are two methods: removing the oil pan for thorough cleaning or replacing the oil without removing the oil pan. Removing the oil pan undoubtedly cleans more thoroughly, but it usually results in uncontrollable and widespread dripping of lubricant adhering to the oil pan and other parts, causing environmental pollution. If the vehicle is in good working order, i.e., the replaced lubricant is of a healthy color and there is no need to remove the oil pan, sludge and other contaminants adhering to the oil pan will continue to accumulate, seriously affecting the service life of the transmission.

[0005] Therefore, a design solution is needed to improve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a gearbox housing to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a gearbox housing, comprising a housing and an oil pan disposed on the housing, wherein the oil pan and the housing form an oil transfer space, an oil drain port is provided on the oil drain port and a plug is provided on the oil drain port, and a water spray assembly is provided inside the oil pan for rinsing the inner wall of the oil transfer space.

[0008] Preferably, the water spray assembly includes a cleaning pipe with several water spray holes disposed inside the oil pan. The water spray holes are oriented toward the upper surface of the inner wall of the oil transfer space and / or toward the bottom surface of the oil transfer space, directing the water flow toward the drain port. The oil pan is provided with a closable water inlet.

[0009] Preferably, one end of the cleaning tube is provided with a rotating connection port, and a rotating component is detachably connected to the rotating connection port.

[0010] Preferably, the oil pan has a through hole that communicates with one end of a cleaning pipe with a rotating connection port, and a sealing plug for sealing the through hole is detachably connected to the oil pan.

[0011] Preferably, the cleaning pipe is provided with an anti-backflow component, which includes a sealing pipe and an elastic element provided on the cleaning pipe, and the sealing pipe has a connecting hole corresponding to the water spray hole.

[0012] When the rotating component is inserted into the rotating connection port, it drives the connecting hole on the sealing pipe to connect with the water spray hole on the cleaning pipe through the elastic component.

[0013] When the rotating component disengages from the rotating connection port, the elastic component returns to its natural state and controls the connecting hole on the sealing pipe to disengage from the water spray hole so that the water spray hole is sealed.

[0014] Preferably, the rotating connection port is an irregularly shaped hole to facilitate confirmation of the water spray hole position when the rotating component is inserted.

[0015] Preferably, the oil pan is provided with a limiting stop for limiting the rotation angle of the cleaning pipe, and the cleaning pipe is provided with an abutment part that cooperates with the limiting stop.

[0016] The beneficial effects of this utility model are as follows: This solution uses a water spray assembly to flush the inner wall of the oil transfer space, which can flush out sludge and other contaminants in the oil pan without disassembling it, or flush out any lubricating oil that has not yet dripped from the oil transfer space when the oil pan needs to be disassembled, allowing it to flow out through the drain port. This avoids large-scale oil dripping when the oil pan is opened, reduces the risk of environmental pollution, and reduces cleaning work.

[0017] Among them, by setting a rotating component to control the rotation of the cleaning pipe, it is possible to achieve a thorough flushing of the inside of the oil transfer space;

[0018] By setting limit stops and abutment parts, the position of the water spray nozzle can be effectively controlled, so that the sludge and other substances in the oil transfer space can move towards the oil outlet under the impact of water. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the oil pan structure in Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the cleaning tube in Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the front structure of the oil pan in Embodiment 2 of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the cleaning pipe and anti-backflow component in Embodiment 2 of this utility model. Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the structure of the cleaning pipe and anti-backflow component in Embodiment 2 of this utility model. Figure 2 ;

[0025] Figure 7 yes Figure 4 Enlarged schematic diagram of part A;

[0026] In the diagram: 1. Housing; 2. Oil pan; 21. Drain port; 22. Plug; 3. Cleaning pipe; 31. Water spray hole; 4. Water inlet; 5. Sealing nut; 6. First through hole; 7. Rotating component; 8. Sealing plug; 9. Sealing pipe; 91. Connecting hole; 10. Elastic component; 11. Rotating connection port; 12. Rotating seat; 13. Limiting stop; 14. Abutment part. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention. Example

[0028] See Figures 1-3 A gearbox housing includes a housing 1 and an oil pan 2 disposed on the housing 1. The oil pan 2 and the housing 1 form an oil transfer space. An oil drain port 21 is provided on the oil drain port 21, and a plug 22 is provided on the oil drain port 2. A water spray assembly is provided inside the oil pan 2, and the water spray assembly is used to flush the inner wall of the oil transfer space.

[0029] Among them, see Figure 3The water spray assembly includes a cleaning pipe 3 with several water spray holes 31 disposed inside the oil pan 2. The cleaning pipe 3 can be fixed inside the oil pan 2 by welding or other means. The opening direction of the water spray holes 31 is set towards the upper surface of the inner wall of the oil transfer space and / or towards the bottom surface of the oil transfer space, so that the water flows towards the drain port 21. The oil pan 2 is provided with a water inlet 4 that can be closed and connected to the cleaning pipe 3 for connecting a high-pressure water source. The water inlet 4 can be opened and closed by means of a threaded connection sealing nut 5. In this embodiment, the water spray holes 31 are arranged in multiple rows along the circumference of the cleaning pipe to facilitate the comprehensive flushing of the inner wall of the oil transfer space. Example

[0030] See Figure 1 , Figures 4-7 The difference from Embodiment 1 is that in this embodiment, only one row of water spray holes 31 is provided on the cleaning pipe 3. One end of the cleaning pipe 3 is provided with a rotating connection port 11. A rotating component 7 is detachably connected to the rotating connection port 11 so that the cleaning pipe 3 can rotate. For this purpose, a set of rotating seats 12 is provided in the oil pan 2, and the cleaning pipe 3 is rotatably connected in the rotating seats 12.

[0031] The oil pan 2 has a first through hole 6 that is connected to one end of the cleaning pipe 3 with a rotating connection port 11. The term "connected" in this paragraph means that the rotating part 7 can be inserted into the rotating connection port 11 through the first through hole 6. A sealing plug 8 for sealing the first through hole 6 is detachably connected to the oil pan 2.

[0032] The cleaning pipe is equipped with an anti-backflow component, which includes a sealing pipe 9 and an elastic element 10 on the cleaning pipe. The elastic element 10 can be a spring. The sealing pipe 9 is provided with a connecting hole 91 corresponding to the water spray hole 31. The diameter of the connecting hole 91 is larger than the diameter of the water spray hole 31 to ensure that the two can be connected.

[0033] When the rotating component 7 is inserted into the rotating connection port 11, it drives the connecting hole 91 on the sealing pipe 9 to connect with the water spray hole 31 on the cleaning pipe through the elastic component 10.

[0034] When the rotating member 7 disengages from the rotating connection port 11, the elastic member 10 returns to its natural state and controls the connecting hole 91 on the sealing tube 9 to disengage from the water spray hole 31 so that the water spray hole 31 is sealed.

[0035] For details, please refer to Figure 5 In this embodiment, both the elastic element 10 and the sealing tube 9 are disposed inside the cleaning tube 3. A cross-shaped stop is fixedly connected to one end of the cleaning tube to abut against the elastic element 10. This end is also the end connected to the water inlet 4. (See reference...) Figure 6 The rotating connection port 11 is located at the other end of the cleaning pipe and extends into the cleaning pipe. When the rotating part 7 is inserted into the rotating connection port 11, it continues to go deeper and abuts against one end of the sealing pipe 9, so that the elastic part 10 is compressed, thereby realizing the connection between the connecting hole 91 and the spray hole 31. In order to ensure the effect of use, the fitting gap between the rotating part 7 and the rotating connection port 11 should be minimized. In this embodiment, the cleaning pipe 3 and the sealing pipe 9 are both round pipes. In order to avoid the cleaning pipe 3 and the sealing pipe 9 from rotating and misaligning, the two ends of the elastic part 10 can be welded and fixed to the sealing pipe 9 and the cleaning pipe 3 respectively.

[0036] The rotating connection port is an irregularly shaped hole to facilitate the confirmation of the position of the water spray hole 31 when the rotating component 7 is inserted.

[0037] The oil pan 2 is provided with a limiting stop 13 for limiting the rotation angle of the cleaning pipe 3, and the cleaning pipe 3 is provided with an abutment part 14 for use with the limiting stop 13.

[0038] When using the solution in this embodiment, first open the oil drain port 21 to drain the oil. After the oil drain port 21 stops dripping oil, open the water inlet 4 to connect to the high-pressure water source. At the same time, open the sealing plug. Use the matching rotating part 7 to insert into the rotating connection port 11 and push the sealing tube 9 to move so that the connecting hole 91 is connected to the water spray hole 31, so that water is sprayed out from the water spray hole 31 and washes the inner wall of the oil transfer space. At the same time, by rotating the rotating part 7, the oil transfer space can be thoroughly flushed. Furthermore, under the action of the limiting stop 13, the position is effectively found so that the water can flush the oil sludge and other substances toward the oil drain port 21.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gearbox housing, comprising a housing (1) and an oil pan (2) disposed on the housing (1), the oil pan (2) and the housing (1) forming an oil transfer space, the oil pan (2) having an oil drain port (21) and a plug (22) disposed on the oil drain port (21), characterized in that: The oil pan (2) is equipped with a water spray assembly, which is used to flush the inner wall of the oil transfer space.

2. A gearbox housing according to claim 1, characterized in that: The water spray assembly includes a cleaning pipe (3) with several water spray holes (31) disposed in the oil pan (2). The water spray holes (31) are set towards the upper surface of the inner wall of the oil transfer space and / or towards the bottom surface of the oil transfer space, so that the water flows to the drain port (21). The oil pan (2) is provided with a water inlet (4) that can be closed and connected to the cleaning pipe (3).

3. A gearbox housing according to claim 2, characterized in that: The cleaning tube (3) is provided with a rotating connection port (11) at one end, and a rotating component (7) is detachably connected to the rotating connection port (11).

4. A gearbox housing according to claim 3, characterized in that: The oil pan (2) has a first through hole (6) that is connected to one end of the cleaning pipe (3) with a rotating connection port (11). A sealing plug for sealing the through hole is detachably connected to the oil pan (2).

5. A gearbox housing according to claim 4, characterized in that: The cleaning pipe is provided with an anti-backflow component, which includes a sealing pipe (9) and an elastic element (10) provided on the cleaning pipe. The sealing pipe (9) is provided with a connecting hole (91) corresponding to the water spray hole (31). When the rotating part (7) is inserted into the rotating connection port (11), it drives the connecting hole (91) on the sealing pipe (9) to connect with the water spray hole (31) on the cleaning pipe through the elastic part (10); When the rotating member (7) disengages from the rotating connection port (11), the elastic member (10) returns to its natural state and controls the connecting hole (91) on the sealing tube (9) to disengage from the water spray hole (31) so that the water spray hole (31) is sealed.

6. A gearbox housing according to claim 4, characterized in that: The rotating connection port is a non-circular hole to facilitate the confirmation of the position of the water spray hole (31) when the rotating part (7) is inserted.

7. A gearbox housing according to claim 4, characterized in that: The oil pan (2) is provided with a limiting stop (13) for limiting the rotation angle of the cleaning pipe (3), and the cleaning pipe (3) is provided with an abutment part (14) for use with the limiting stop (13).

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