Planetary gear transmission differential mechanism

Abstract

The utility model discloses a planetary gear transmission differential mechanism which comprises a differential mechanism shell, a fixing sleeve is installed on the differential mechanism shell, a liquid injection pipe is connected to the fixing sleeve in a rotating mode, sealing rings are arranged on the side walls of the liquid injection pipe respectively, a liquid outlet cleaning ball and a threaded connector are installed at the two ends of the liquid injection pipe respectively, and the liquid outlet cleaning ball and the threaded connector are connected through rotation of a liquid outlet sealing cover. According to the cleaning device, the liquid outlet elbow is arranged, so that lubricating oil can flow into the liquid outlet head through the liquid outlet elbow and flow out of the oil leakage hole in the liquid outlet head, and therefore the lubricating oil cannot contaminate the hands of a worker in the oil drainage process, and cleaning liquid is conveyed into the differential shell through the liquid conveying pipe; and after cleaning is completed, the liquid outlet sealing cover is screwed down, lubricating oil is added into the differential mechanism, the interior of the differential mechanism can be better cleaned without disassembling the shell, and replacement of the lubricating oil is completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of differentials, and in particular relates to a planetary gear transmission differential. Background Art

[0002] The car differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. It is mainly composed of left and right half-shaft gears, two planetary gears and a gear rack. When the car is turning or driving on uneven roads, the car differential can make the left and right wheels roll at different speeds, ensuring that the drive wheels on both sides perform pure rolling motion.

[0003] The existing differential needs to regularly replace the lubricating oil inside the differential. However, in order to clean the remaining old lubricating oil during replacement, the differential housing needs to be disassembled and cleaned before the oil is changed. This is inconvenient to operate, and the lubricating oil can easily dirty the workers' hands during the oil draining process. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provide a planetary gear transmission differential, which can replace the internal lubricating oil conveniently and quickly, and the lubricating oil will not dirty the workers' hands during the oil draining process.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a planetary gear transmission differential, including a differential housing, a fixed sleeve is installed on the differential housing, a liquid injection tube is rotatably connected to the fixed sleeve, a sealing ring is arranged on the side wall of the liquid injection tube, a liquid outlet cleaning ball and a threaded connector are respectively installed at both ends of the liquid injection tube, a liquid outlet cleaning ball is respectively provided with a liquid spray hole, and a protective cover is connected to the thread on the outer surface of the fixed sleeve.

[0006] Furthermore, in order to facilitate workers to release the lubricating oil inside the differential without dirtying the workers' hands, a liquid outlet elbow is installed on the differential housing, a liquid outlet head is installed at one end of the liquid outlet elbow, a liquid leakage hole is opened on the liquid outlet head, a liquid outlet cover is connected to the outer surface thread of the liquid outlet head, and an inner sealing top block is installed on one side wall of the liquid outlet cover.

[0007] Furthermore, in order to improve the sealing performance between the liquid outlet cover and the liquid outlet head, a sealing gasket 1 is provided inside the liquid outlet head, and a sealing gasket 2 is provided inside the liquid outlet cover.

[0008] Furthermore, in order to facilitate adding lubricating oil into the differential housing, a filling hole is opened on the differential housing, and a sealing cover is provided on the filling hole.

[0009] Furthermore, in order to ensure that the rotation speed of the automobile is basically consistent when driving on a curve, the differential housing is rotatably connected with a right half-shaft, a left half-shaft and a driving shaft, one end of the right half-shaft is equipped with a right gear, one end of the left half-shaft is equipped with a left gear, one end of the driving shaft is equipped with a driving gear, a side wall of the right half-shaft is rotatably connected with a driven gear, the driven gear is meshingly connected with the driving gear, a support frame is fixedly mounted on the driven gear, the support frame is rotatably connected with a planetary gear, and the planetary gears are respectively meshingly connected with the right gear and the left gear.

[0010] Furthermore, in order to prevent the lubricating oil from overflowing from the injection pipe, a fixing ring is installed on the side wall of the fixing sleeve, and a sealing gasket three is arranged on one side wall of the fixing ring.

[0011] Furthermore, in order to observe the condition of the lubricating oil inside the differential, an observation hole is opened on one side wall of the differential housing, and an observation cover is provided on the observation hole.

[0012] Furthermore, in order to more conveniently observe the condition of the lubricating oil inside the differential, the observation cover is made of a transparent material.

[0013] The technical effects and advantages of the utility model are as follows: by rotating the liquid outlet sealing cap, the lubricating oil can flow into the interior of the liquid outlet head through the liquid outlet elbow and flow out from the oil leakage hole on the liquid outlet head, so that the lubricating oil will not dirty the workers' hands during the oil discharge process; the cleaning liquid is transported to the interior of the differential housing through the infusion tube, and then sprayed out through the spray hole on the liquid outlet cleaning ball to clean the inside of the differential. After the cleaning is completed, the liquid outlet sealing cap is tightened, and lubricating oil is added to the inside of the differential, so that the differential does not need to be disassembled to better clean the inside of the differential and complete the replacement of the lubricating oil, which is conducive to improving the convenience of workers' operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the observation cover structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the sealing cover structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0018] Figure 5 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0019] In the figure: 1. differential housing; 2. fixing sleeve; 3. injection pipe; 4. sealing ring; 5. liquid outlet cleaning ball; 6. threaded connector; 7. protective cover; 8. sealing cover; 9. liquid outlet elbow; 10. liquid outlet head; 11. liquid outlet cover; 12. inner sealing top block; 13. sealing gasket 1; 14. sealing gasket 2; 15. leakage hole; 16. fixing ring; 17. sealing gasket 3; 18. observation cover; 19. right half shaft; 20. left half shaft; 21. driving shaft; 22. left gear; 23. right gear; 24. driving gear; 25. support frame; 26. driven gear; 27. planetary gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5As shown, a planetary gear transmission differential comprises a differential housing 1, a fixing sleeve 2 is mounted on the differential housing 1, a liquid injection pipe 3 is rotatably connected to the fixing sleeve 2, sealing rings 4 are respectively arranged on the side walls of the liquid injection pipe 3, liquid outlet cleaning balls 5 and threaded connectors 6 are respectively mounted on both ends of the liquid injection pipe 3, liquid outlet cleaning balls 5 are respectively provided with liquid spray holes, a protective cover 7 is connected to the outer surface thread of the fixing sleeve 2, a liquid outlet elbow 9 is mounted on the differential housing 1, a liquid outlet head 10 is mounted on one end of the liquid outlet elbow 9, a liquid leakage hole 15 is provided on the liquid outlet head 10, and a liquid outlet hole 15 is provided on the liquid outlet head 10. The outer surface of the differential 10 is connected with a liquid outlet cap 11, and an inner sealing top block 12 is installed on one side wall of the liquid outlet cap 11. A sealing gasket 13 is arranged inside the liquid outlet head 10, and a sealing gasket 2 14 is arranged inside the liquid outlet cap 11. When the lubricating oil inside the differential needs to be replaced, the liquid outlet cap 11 is rotated counterclockwise so that the inner sealing top block 12 no longer presses against the sealing gasket 13, and the liquid outlet head 10 no longer presses against the sealing gasket 2 14. When the leakage hole 15 on the liquid outlet head 10 leaks, the liquid outlet cap 11 stops rotating, and there is no need to completely screw the liquid outlet cap 11. Then the lubricating oil can flow into the inside of the liquid outlet head 10 through the liquid outlet elbow 9, and then flow out from the oil leakage hole on the liquid outlet head 10, so as to avoid the lubricating oil from dirtying the hands of the workers during the oil discharge process. A filling hole is provided on the differential housing 1, and a sealing cover 8 is provided on the filling hole. After the oil is discharged, the protective cover 7 is unscrewed, and then the threaded connector 6 is connected to the external infusion pipe. The cleaning liquid is transported to the inside of the injection pipe 3 through the water pump and the infusion pipe, so that the cleaning liquid can be sprayed out through the spray hole on the liquid outlet cleaning ball 5 to clean the inside of the differential. During the process, the injection tube 3 can be rotated back and forth, which is conducive to the cleaning liquid to more effectively clean the inside of the differential. After the cleaning is completed, the liquid outlet sealing cap 11 is tightened so that the inner sealing top block 12 can press against the sealing gasket 1 13. At the same time, the liquid outlet head 10 presses against the sealing gasket 2 14, and then the lubricating oil is added to the inside of the differential through the filling hole on the differential housing 1. Finally, the sealing cap 8 is installed on the filling hole. Therefore, the differential does not need to be disassembled to clean the inside of the differential and complete the replacement of the lubricating oil, which is conducive to facilitating the workers to replace the lubricating oil inside the differential.

[0022] The right half shaft 19, the left half shaft 20 and the driving shaft 21 are rotatably connected to the differential housing 1, a right gear 23 is installed at one end of the right half shaft 19, a left gear 22 is installed at one end of the left half shaft 20, a driving gear 24 is installed at one end of the driving shaft 21, a driven gear 26 is rotatably connected to the side wall of the right half shaft 19, the driven gear 26 is meshed with the driving gear 24, a support frame 25 is fixedly installed on the driven gear 26, a planetary gear 27 is rotatably connected to the support frame 25, the planetary gear 27 is meshed with the right gear 23 and the left gear 22, the driving gear 24 is driven to rotate by the driving shaft 21, so that the driven gear 26 can drive the planetary gear 27 to rotate, and the planetary gear 27 will rotate by itself, respectively driving the right gear 23 and the left gear 22 to rotate, thereby driving the right half shaft 19 and the left half shaft 20 to rotate.

[0023] A fixing ring 16 is installed on the side wall of the fixing sleeve 2, and a sealing gasket 3 17 is provided on one side wall of the fixing ring 16. When the liquid outlet sealing cover 11 is installed on the fixing sleeve 2, the bottom of the liquid outlet sealing cover 11 can press against the sealing gasket 3 17 on the fixing ring 16, which is helpful to prevent the lubricating oil from overflowing from the injection pipe 3.

[0024] An observation hole is provided on one side wall of the differential housing 1 , and an observation cover 18 is provided on the observation hole. The observation cover 18 is made of a transparent material, and the condition of the lubricating oil inside the differential can be observed through the observation cover 18 .

[0025] When the utility model is in use, if the lubricating oil inside the differential needs to be replaced, the inner sealing top block 12 is no longer against the sealing gasket 13 by rotating the liquid outlet sealing cover 11, and at the same time, the liquid outlet head 10 is no longer against the sealing gasket 2 14. When the leakage hole 15 on the liquid outlet head 10 leaks out, the liquid outlet sealing cover 11 is stopped from being rotated, and it is not necessary to completely unscrew the liquid outlet sealing cover 11, so that the lubricating oil can flow into the inside of the liquid outlet head 10 through the liquid outlet elbow 9 and flow out from the oil leakage hole on the liquid outlet head 10, so that the lubricating oil will not dirty the hands of the workers during the oil discharge process. After the oil is discharged, the protective sealing cover 7 is unscrewed, and then the threaded connector 6 and the external infusion tube are connected. The cleaning liquid is connected to each other, and the cleaning liquid is transported to the inside of the differential housing 1 through the infusion tube, and then sprayed out through the spray hole on the liquid outlet cleaning ball 5. During the spraying process, the injection tube 3 is rotated back and forth, so that the cleaning liquid sprayed by the liquid outlet cleaning ball 5 can more effectively clean the inside of the differential housing 1. After the cleaning is completed, the liquid outlet sealing cover 11 is tightened so that the inner sealing top block 12 can press against the sealing gasket 13, and the lubricating oil is added to the inside of the differential housing 1 through the filling hole on the differential housing 1. After the filling is completed, the sealing cover 8 is installed. Therefore, the inside of the differential can be cleaned and the lubricating oil can be replaced without disassembling the housing, which is beneficial to improving the operating convenience of the workers.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A planetary gear transmission differential, comprising a differential housing (1), Features: A fixing sleeve (2) is mounted on the differential housing (1), a liquid injection pipe (3) is rotatably connected to the fixing sleeve (2), a sealing ring (4) is arranged on the side wall of the liquid injection pipe (3), a liquid outlet cleaning ball (5) and a threaded connector (6) are respectively mounted on both ends of the liquid injection pipe (3), liquid outlet cleaning balls (5) are respectively provided with liquid spray holes, and a protective cover (7) is threadedly connected to the outer surface of the fixing sleeve (2).

2. The planetary gear transmission differential as claimed in claim 1, Features: A liquid outlet elbow (9) is mounted on the differential housing (1), a liquid outlet head (10) is mounted on one end of the liquid outlet elbow (9), a liquid leakage hole (15) is provided on the liquid outlet head (10), a liquid outlet sealing cover (11) is connected to the outer surface of the liquid outlet head (10) through a thread, and an inner sealing top block (12) is mounted on a side wall of the liquid outlet sealing cover (11).

3. The planetary gear transmission differential as claimed in claim 2, Features: A sealing gasket 1 (13) is arranged inside the liquid outlet head (10), and a sealing gasket 2 (14) is arranged inside the liquid outlet sealing cover (11).

4. The planetary gear transmission differential as claimed in claim 2, Features: The differential housing (1) is provided with a filling hole, and a sealing cover (8) is provided on the filling hole.

5. The planetary gear transmission differential as claimed in claim 1, Features: A right half shaft (19), a left half shaft (20) and a driving shaft (21) are rotatably connected to the differential housing (1); a right gear (23) is mounted on one end of the right half shaft (19); a left gear (22) is mounted on one end of the left half shaft (20); a driving gear (24) is mounted on one end of the driving shaft (21); a driven gear (26) is rotatably connected to the side wall of the right half shaft (19); the driven gear (26) is meshingly connected to the driving gear (24); a support frame (25) is fixedly mounted on the driven gear (26); a planetary gear (27) is rotatably connected to the support frame (25); the planetary gear (27) is meshingly connected to the right gear (23) and the left gear (22), respectively.

6. The planetary gear transmission differential as claimed in claim 1, Features: A fixing ring (16) is installed on the side wall of the fixing sleeve (2), and a sealing gasket (17) is provided on one side wall of the fixing ring (16).

7. The planetary gear transmission differential as claimed in claim 1, Features: An observation hole is provided on a side wall of the differential housing (1), and an observation cover (18) is provided on the observation hole.

8. The planetary gear transmission differential as claimed in claim 7, Features: The observation cover (18) is made of a transparent material.

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