Welding oil pipe structure for automobile motor differential mechanism

Abstract

The utility model discloses a welding oil pipe structure for an automobile motor differential mechanism, which relates to the technical field of oil pipe structures and comprises a first oil pipe, a connecting oil pipe and a second oil pipe, the first oil pipe, the connecting oil pipe and the second oil pipe are communicated and connected, and an upper cover and a lower cover are respectively arranged on the bottom surface of the first oil pipe and the top surface of the second oil pipe. Clamping grooves are formed in the upper cover and the lower cover, and protruding blocks matched with the clamping grooves are arranged on the first oil pipe and the second oil pipe. According to the utility model, through split injection molding and laser welding, the flexible arrangement of the direction of the oil hole is realized, the limitation of traditional integral injection molding is avoided, and meanwhile, the bending part of the connecting oil pipe balances the oil flow, maintains the oil pressure stability, improves the flexibility of the oil pipe and maintains the oil pressure stability by changing the sectional area of the bending part of the inner cavity; and a solid guarantee is provided for efficient operation of the automobile motor differential mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of oil pipe structure technology, specifically a welded oil pipe structure for automotive motor differential. Background Technology

[0002] The oil pipe structure of an automotive differential plays a crucial role in the vehicle's transmission system. As a vital component allowing the two drive wheels to rotate at different speeds, the differential's oil pipe structure is responsible for providing the necessary lubricating oil to the gears and other moving parts within the differential, ensuring smooth operation and reducing wear. The oil pipes are typically carefully designed to ensure that the oil is delivered evenly and efficiently to all critical parts of the differential, thereby guaranteeing the vehicle's stability and driving efficiency under various road conditions.

[0003] Traditional oil pipe structures face numerous challenges. While traditional one-piece injection-molded oil pipes meet usage requirements to some extent, the direction of their oil holes is limited by the injection molding process, making flexible arrangement difficult. Furthermore, issues with oil flow and pressure stability frequently arise, affecting the efficient operation of automotive motor differentials. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model proposes a welded oil pipe structure for automotive motor differentials.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A welded oil pipe structure for an automotive motor differential includes a first oil pipe, a connecting oil pipe, and a second oil pipe, wherein the first oil pipe, the connecting oil pipe, and the second oil pipe are connected in a continuous manner, and an upper cover and a lower cover are respectively provided on the bottom surface of the first oil pipe and the top surface of the second oil pipe.

[0007] Both the upper and lower covers are provided with slots, and the No. 1 and No. 2 oil pipes are provided with matching protrusions.

[0008] As a further preferred embodiment of this technical solution: the inner cavities of the No. 1 oil pipe, the connecting oil pipe, and the No. 2 oil pipe are through bushings.

[0009] As a further preferred embodiment of this technical solution: the upper and lower diameters of the connecting oil pipe are different from the middle diameter.

[0010] As a further preferred embodiment of this technical solution: multiple oil injection pipes are provided on the No. 1 oil pipe, the connecting oil pipe and the No. 2 oil pipe for spraying lubricating oil onto the gears of the motor differential.

[0011] As a further preferred embodiment of this technical solution, the No. 1 oil pipe and the No. 2 oil pipe are also provided with mounting ears for connection and fixation.

[0012] As a further preferred embodiment of this technical solution: both the No. 1 oil pipe and the No. 2 oil pipe are provided with oil inlets, and an O-ring is fitted on the outside of the oil inlet.

[0013] As a further preferred embodiment of this technical solution: the upper cover is provided with an extension cylinder, and the extension cylinder is provided with an oil injection pipe.

[0014] As a further preferred embodiment of this technical solution: the size of the slot is slightly larger than the size of the protrusion, and the slot and the protrusion have the same shape.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the oil hole direction can be flexibly arranged by split injection molding and laser welding, avoiding the limitations of traditional one-piece injection molding. At the same time, the oil flow rate is balanced and the oil pressure is maintained by changing the cross-sectional area of ​​the inner cavity at the bend of the connecting oil pipe. This improves the flexibility of the oil pipe and maintains the stability of the oil pressure, providing a solid guarantee for the efficient operation of the automotive motor differential. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a partial three-dimensional structural diagram of the present invention. Figure 1 ;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 2 ;

[0020] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0021] Legend: 1. No. 1 oil pipe; 2. Connecting oil pipe; 3. No. 2 oil pipe; 4. Top cover; 5. Bottom cover; 6. Oil inlet; 7. O-ring; 8. Slot; 9. Protrusion; 10. Mounting ear; 11. Bushing; 12. No. 1 reducing oil port; 13. No. 2 reducing oil port; 14. Extension tube; 15. Injection pipe. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Please see Figures 1-4This application provides a welded oil pipe structure for an automotive motor differential, including a first oil pipe 1, a connecting oil pipe 2, and a second oil pipe 3. The first oil pipe 1, connecting oil pipe 2, and second oil pipe 3 are injection molded separately and laser welded to ensure their sealing. Compared with the method of injection molding the entire oil pipe as a whole, this method has limitations, namely, the direction of the oil hole must be consistent with the mold release direction of the main body, otherwise the injection molding process cannot be implemented. By adopting the split injection molding method, the oil holes can be flexibly classified and set according to the required direction. The first oil pipe 1, connecting oil pipe 2, and second oil pipe 3 are connected through each other. The bottom surface of the first oil pipe 1 and the top surface of the second oil pipe 3 are respectively provided with an upper cover 4 and a lower cover 5. The upper cover 4 and the lower cover 5 are both provided with a groove 8. The first oil pipe 1 and the second oil pipe 3 are provided with matching protrusions 9. The size of the groove 8 is slightly larger than the size of the protrusion 9, and the groove 8 and the protrusion 9 have the same shape.

[0024] In this embodiment, the inner cavities of the first oil pipe 1, the connecting oil pipe 2, and the second oil pipe 3 are through bushings 11, and the gaps between the first oil pipe 1, the connecting oil pipe 2, and the second oil pipe 3 and the bushing 11 are filled with 0.2mm of rubber coating. This solves the problem that the first oil pipe 1, the connecting oil pipe 2, and the second oil pipe 3 are injection molded and there is a tolerance between them and the outer diameter of the bushing 11. The inside is used to transport lubricating oil, and the bushing 11 is made of 54 steel, which is low in cost and weight, in line with the current trend of weight reduction in new energy vehicles.

[0025] In this embodiment, the upper and lower diameters of the connecting oil pipe 2 are different from the middle diameter. Due to gravity, there is a difference in oil pressure at the oil inlet 6 located vertically above and below. This usually results in a greater oil flow rate at the lower nozzle than at the upper nozzle. In order to balance this uneven flow rate and maintain stable oil pressure, the cross-sectional area is changed at the bend in the inner cavity of the connecting oil pipe 2, thereby changing the flow rate of the lubricating oil and achieving a balanced distribution of oil flow rate, thus ensuring the stable operation of the system.

[0026] In this embodiment, multiple oil injection pipes 15 are provided on the first oil pipe 1, the connecting oil pipe 2, and the second oil pipe 3. An extension cylinder 14 is provided on the upper cover 4, and an oil injection pipe 15 is also provided on the extension cylinder 14. The protruding height of the extension cylinder 14 can be adjusted according to specific needs. If there are no differential gears nearby, it is not necessary to extend it. It is used to spray lubricating oil onto the gears of the motor differential to cool the gears. The position and direction of the oil injection pipe 15 can be installed according to the specific position of the gears.

[0027] In this embodiment, mounting ears 10 are also provided on the No. 1 oil pipe 1 and the No. 2 oil pipe 3 respectively, for connecting and fixing to the starter to ensure the stability of the oil pipe pipeline.

[0028] In this embodiment, both the No. 1 oil pipe 1 and the No. 2 oil pipe 3 are provided with oil inlets 6, and O-rings 7 are fitted on the outside of the oil inlets 6. The oil inlets 6 are used to connect with the oil pump, and the O-rings 7 can increase the sealing between the pipe connections to prevent oil leakage.

[0029] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A welded oil pipe structure for an automobile motor differential, characterized by: It includes No. 1 oil pipe (1), connecting oil pipe (2) and No. 2 oil pipe (3), and the No. 1 oil pipe (1), connecting oil pipe (2) and No. 2 oil pipe (3) are connected through, the bottom surface of the No. 1 oil pipe (1) and the top surface of No. 2 oil pipe (3) are respectively provided with upper cover (4) and lower cover (5); The upper cover (4) and lower cover (5) are provided with clamping groove (8), the No. 1 oil pipe (1) and No. 2 oil pipe (3) are provided with matching protruding block (9).

2. The welded pipe structure for a differential of an automobile electric motor according to claim 1, wherein The inner cavity of the No. 1 oil pipe (1), connecting oil pipe (2) and No. 2 oil pipe (3) is provided with through bushing (11).

3. The welded pipe structure for a differential of an automobile electric motor according to claim 1, wherein The upper and lower part of the connecting oil pipe (2) is different from the middle part in size.

4. The welded pipe structure for a differential of an automobile electric motor according to claim 1, wherein The No. 1 oil pipe (1), connecting oil pipe (2) and No. 2 oil pipe (3) are provided with multiple oil injection pipes (15) for spraying lubricating oil to the gear of motor differential.

5. The welded pipe structure for a differential of an automobile electric motor according to claim 1, wherein The No. 1 oil pipe (1) and No. 2 oil pipe (3) are respectively provided with mounting lug (10) for connection and fixation.

6. The welded pipe structure for a differential of an automobile electric motor according to claim 1, wherein The No. 1 oil pipe (1) and No. 2 oil pipe (3) are provided with oil inlet (6), and the outer side of the oil inlet (6) is provided with O ring (7).

7. The welded pipe structure for a differential of an automobile electric motor according to claim 1, wherein The upper cover (4) is provided with extension cylinder (14), and the extension cylinder (14) is provided with oil injection pipe (15).

8. The welded pipe structure for a differential of an automotive electric motor according to claim 1, characterized by The size of the clamping groove (8) is slightly larger than the size of the protruding block (9), and the shape of the clamping groove (8) and the protruding block (9) is the same.

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