Differential mechanism with self-locking function

Abstract

The utility model discloses a differential mechanism with a self-locking function. The differential mechanism comprises a protective cover, the bottom of the protective cover is connected with an input shaft in a penetrating mode, the end of the input shaft is connected with a rotating assembly, the rotating assembly comprises a driving gear installed at the end of the input shaft, and the side end of the driving gear is connected with a driven gear in an engaged mode; the surface of the driven gear is connected with a first bevel gear through a support, the side end of the first bevel gear is connected with a second bevel gear in an engaged mode, and a sound absorption layer is arranged in the protective cover. According to the differential mechanism with the self-locking function, the rotating assembly is installed in the protective cover, the problem of damage caused by the influence of the external environment during overall use is reduced, the overall service life is prolonged, the overall performance is improved, and noise generated during rotation of an internal structure is conveniently adsorbed through the sound absorption layer arranged on the inner side of the protective cover; the problem of inconvenience caused by large noise in the whole use process is solved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to differentials, in particular to a differential with a self-locking function. Background Art

[0002] In order to ensure vehicle stability and handling, a differential needs to be installed on the car. The main function of the differential is to allow the wheels to rotate at different speeds when turning, but the existing differential with self-locking function still has certain defects when used, such as;

[0003] For example, in a differential with publication number CN111577862A, the mating surfaces of the gasket and the bushing are abutted to form a spherical fit, so that the gasket no longer contacts the inner wall of the outer shell, eliminating the wear of the inner wall of the outer shell. The bushing is independently arranged from the outer shell, so the wear resistance can be improved by selecting only a harder metal material for the bushing, so that the gasket is not easily worn to ensure the meshing accuracy between the planetary gears and the half-shaft gears, and the production cost is lower. Processing the mating surface at the end of the bushing is also more convenient and less difficult for the processing technology, and the processing accuracy of the mating surface is guaranteed. In this way, a better fit can be formed between the mating surface and the gasket, thereby improving the working stability of the differential. The bushing prevents the locating shaft from directly contacting the inner wall of the through hole, and eliminates the wear between the locating shaft and the outer shell.

[0004] However, the differential still has the following disadvantages in actual use:

[0005] The wear problem of the inner wall of the shell is eliminated by setting the gears separately from the shell. In actual use, the external gears are not protected, so the gears are exposed to the external environment, which is not only prone to noise and vibration, increasing safety hazards, but also the gears are easily affected by the external environment and damaged, increasing maintenance costs. In addition, the gears are transmitted to the internal structure of the shell, so the external gears are easy to bring pollutants and corrosives in the environment into the shell, causing the internal structure to be corroded and damaged, reducing the overall life and performance.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original differential with self-locking function. Therefore, we propose that a differential with self-locking function can solve the above problems well. Utility Model Content

[0007] The purpose of the utility model is to provide a differential with a self-locking function to solve the problem of wear on the inner wall of the outer shell eliminated by separately arranging the gears and the outer shell in the current market as proposed in the above-mentioned background technology. In actual use, the external gears are not protected, so the gears are exposed to the external environment, which not only easily generates noise and vibration, increasing safety hazards, but also the gears are easily affected by the external environment and damaged, increasing the cost of maintenance. In addition, the gears are transmitted to the structure inside the outer shell, so the external gears are easy to bring pollutants and corrosives in the environment into the inner shell, causing the internal structure to be corroded and damaged, reducing the overall life and performance problems.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a differential with a self-locking function, comprising a protective cover;

[0009] An input shaft is connected through the bottom of the protective cover, and a rotating assembly is connected to the end of the input shaft. The rotating assembly includes a driving gear installed at the end of the input shaft, and a driven gear is meshed and connected to the side end of the driving gear. The internal rotating assembly is protected by the protective cover;

[0010] An output shaft is connected to the inside of the driven gear, a first bevel gear is connected to the surface of the driven gear through a bracket, a second bevel gear is meshedly connected to the side end of the first bevel gear, and the side end of the second bevel gear is connected to the output shaft. A sound-absorbing layer is arranged inside the protective cover, and the sound-absorbing layer is convenient for absorbing noise generated by rotation.

[0011] Preferably, the end of the output shaft is connected to a driving member via a connecting member, and the surface of the driving member is connected to the outside of the protective cover via a connecting rod.

[0012] Preferably, a buffer assembly is provided on the output shaft, and the buffer assembly comprises a worm mounted on the output shaft.

[0013] Preferably, the side end of the worm is meshingly connected with a worm wheel, the worm wheel is connected to a support seat via a rotating shaft, and the support seat is installed inside the protective cover.

[0014] Preferably, an auxiliary component is arranged inside the protective cover, and the auxiliary component includes a storage box installed inside the protective cover.

[0015] Preferably, a connection port is provided on the surface of the storage box, an air bag is provided inside the storage box, and the air bag is connected to a pipeline via a hose.

[0016] Preferably, the pipeline is installed at the bottom of the driving gear, a through hole is opened on the pipeline, and a nozzle is installed on the pipeline.

[0017] Preferably, an eccentric wheel is sleeved on the outer side of the rotating shaft, and the eccentric wheel is installed on the side end of the airbag.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the differential with self-locking function, the rotating assembly is installed inside the protective cover, which reduces the damage caused by the external environment during the use of the whole, improves the overall life and performance, and the sound-absorbing layer arranged inside the protective cover is convenient for absorbing the noise generated when the internal structure rotates, reduces the inconvenience caused by the high noise during the use of the whole, and reduces the maintenance cost. The specific contents are as follows:

[0019] (1) The protective cover is convenient for protecting the rotating components, which not only reduces the damage caused by the external environment during the use of the whole, but also reduces safety hazards and reduces the cost of maintenance. The sound-absorbing layer is convenient for absorbing the noise generated when the internal structure rotates, reducing the inconvenience caused by the loud noise during the use of the whole;

[0020] (2) The output shaft of the rotating assembly rotates through a driving member connected to a connecting member, and the driving member is rotatably connected to the protective cover through a connecting rod, so that the overall rotation is more stable, reducing the overall energy consumption and operating costs, and reducing maintenance costs;

[0021] (3) The required liquid or gas is introduced into the airbag, and is conveniently sprayed out through the through holes and nozzles on the pipeline, thereby reducing the friction and wear between the driving gear and the driven gear, improving the transmission efficiency of the driving gear and the driven gear, and greatly improving the overall service life;

[0022] (4) The worm and worm wheel provided on the output shaft of the rotating assembly cooperate to convert the high-speed and low-torque input into the low-speed and high-torque output, making the overall connection more stable and improving the driving comfort of the vehicle;

[0023] (5) The eccentric wheel on the outside of the rotating shaft rotates, so that the airbag of the auxiliary component is squeezed and blown out through the through hole and the nozzle. The gas or liquid can take away the dirt and particles on the surface of the driving gear and the driven gear, thereby improving the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the protective cover of the utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the first bevel gear and the second bevel gear of the utility model;

[0027] Figure 4This is a schematic diagram of the internal cutaway structure of the protective cover of the utility model;

[0028] Figure 5 This is a schematic diagram of the connection structure between the worm wheel and the worm of the utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the utility model after the eccentric wheel rotates;

[0030] Figure 7 For this utility model Figure 6 Enlarged structural diagram at A in the middle.

[0031] In the figure: 1. protective cover; 2. input shaft; 3. driving gear; 4. driven gear; 5. output shaft; 6. bracket; 7. first bevel gear; 8. second bevel gear; 9. connecting piece; 10. driving piece; 11. connecting rod; 12. worm; 13. worm wheel; 14. supporting seat; 15. sound absorbing layer; 16. storage box; 17. connecting port; 18. airbag; 19. hose; 20. pipeline; 21. through hole; 22. nozzle; 23. rotating shaft; 24. eccentric wheel. DETAILED DESCRIPTION

[0032] 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.

[0033] Embodiment 1:

[0034] In this embodiment, in order to increase the service life of the whole, the internal rotating components are protected by the protective cover 1, the purpose of which is to reduce the damage caused by the external environment during the use of the whole. Figure 1-Figure 3The technical solution shown includes a protective cover 1, an input shaft 2 is connected through the bottom of the protective cover 1, and a rotating component is connected to the end of the input shaft 2. The rotating component includes a driving gear 3 installed at the end of the input shaft 2, and the side end of the driving gear 3 is meshed and connected with a driven gear 4. The internal rotating component is protected by the protective cover 1, and an output shaft 5 is connected to the inside of the driven gear 4. The surface of the driven gear 4 is connected to a first bevel gear 7 through a bracket 6, and the side end of the first bevel gear 7 is meshed and connected with a second bevel gear 8, and the side end of the second bevel gear 8 is connected to the output shaft 5. A sound-absorbing layer 15 is arranged inside the protective cover 1, and the sound-absorbing layer 15 is convenient for absorbing the noise generated by the rotation. The end of the output shaft 5 is connected to a driving member 10 through a connecting member 9, and the surface of the driving member 10 is connected to the outside of the protective cover 1 through a connecting rod 11. After the input shaft 2 is installed in the desired position, the driving gear 3 is driven to rotate by the rotation of the input shaft 2, so that the driving gear 3 drives The driven gear 4 meshingly connected at the side end rotates, and the driven gear 4 drives the output shaft 5 to rotate. The bracket 6 at the side end of the driven gear 4 drives the first bevel gear 7 to rotate, which is convenient for the first bevel gear 7 to drive the second bevel gear 8 to rotate, and is convenient for the output shaft 5 at the side end of the second bevel gear 8 to rotate. The output shaft 5 is rotated by the driving member 10 connected by the connecting member 9. The overall rotation is stable, which reduces the overall energy consumption and operating costs. At this time, the driving member 10 is rotatably connected to the protective cover 1 through the connecting rod 11, which makes the overall rotation more stable. The protective cover 1 is convenient for protecting the internal structure, reducing the damage caused by the external environment during the overall use, and improving the overall life and performance. The sound-absorbing layer 15 arranged on the inner side of the protective cover 1 is convenient for absorbing the noise generated when the internal structure rotates, reducing the inconvenience caused by the loud noise during the overall use, greatly reducing safety hazards, and reducing maintenance costs.

[0035] Embodiment 2:

[0036] In this embodiment, in order to further improve the overall service life, the auxiliary components are used to reduce the problem that the existing differential is easily affected by the external environment. Figure 4 , Figure 6 and Figure 7As shown, an auxiliary component is arranged inside the protective cover 1, and the auxiliary component includes a storage box 16 installed inside the protective cover 1, a connection port 17 is provided on the surface of the storage box 16, an air bag 18 is arranged inside the storage box 16, the air bag 18 is connected to a pipe 20 through a hose 19, the pipe 20 is installed at the bottom of the driving gear 3, a through hole 21 is provided on the pipe 20, and a nozzle 22 is installed on the pipe 20, and the required liquid or gas is introduced into the air bag 18 through the connection port 17 on the outer side of the storage box 16, so that the liquid or gas is conveniently transported to the inside of the pipe 20 through the hose 19, and sprayed out through the through hole 21 on the pipe 20 and the nozzle 22, so that the overall temperature control is convenient, the transmission efficiency of the driving gear 3 and the driven gear 4 is improved, thereby saving energy and cost, facilitating cooling and lubrication, reducing the friction and wear of the driving gear 3 and the driven gear 4, and extending the service life of the driving gear 3 and the driven gear 4.

[0037] Embodiment three:

[0038] In this embodiment, in order to improve the overall stability, a buffer component is provided for use, the purpose of which is to reduce the problem of reduced comfort caused by the existing drive instability. Figure 4-Figure 7 As shown, a buffer assembly is provided on the output shaft 5, and the buffer assembly includes a worm 12 installed on the output shaft 5, and the side end of the worm 12 is meshedly connected with a worm wheel 13, and the worm wheel 13 is connected to a support seat 14 through a rotating shaft 23, and the support seat 14 is installed inside the protective cover 1, and an eccentric wheel 24 is sleeved on the outer side of the rotating shaft 23, and the eccentric wheel 24 is installed on the side end of the airbag 18. When the input shaft 2 rotates, the worm 12 provided on the input shaft 2 is convenient to rotate, so that the worm 12 drives the worm wheel 13 on the support seat 14 to rotate, and the cooperation between the worm 12 and the worm wheel 13 can convert the high-speed and low-torque input into the low-speed and high-torque output, thereby increasing the traction and climbing ability of the vehicle at low speed, and the overall connection is more stable, which improves The driving comfort of the vehicle is improved. During the rotation of the worm gear 13, the worm gear 13 rotates on the support seat 14 through the rotating shaft 23, which facilitates the rotation of the eccentric wheel 24 outside the rotating shaft 23, and facilitates the use of the airbag 18 after the eccentric wheel 24 rotates. Therefore, the gas or liquid sprayed out through the through hole 21 and the nozzle 22 can be blown away to take away the dirt and particles on the surface of the driving gear 3 and the driven gear 4, so as to keep the driving gear 3 and the driven gear 4 clean, reduce the problem of reduced safety caused by wear, and the overall drive is simple and fast, which reduces the problem of increased cost caused by the need to set up more drive structures as a whole. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A differential with a self-locking function, comprising a protective cover (1); It is characterized in that Also includes: An input shaft (2) is connected through the bottom of the protective cover (1), and a rotating assembly is connected to the end of the input shaft (2). The rotating assembly includes a driving gear (3) installed at the end of the input shaft (2), and a driven gear (4) is meshedly connected to the side end of the driving gear (3). The rotating assembly inside is protected by the protective cover (1); The output shaft (5) is connected to the inside of the driven gear (4), the surface of the driven gear (4) is connected to the first bevel gear (7) through a bracket (6), the side end of the first bevel gear (7) is meshedly connected to the second bevel gear (8), and the side end of the second bevel gear (8) is connected to the output shaft (5), and a sound absorbing layer (15) is arranged inside the protective cover (1), and the sound absorbing layer (15) is arranged to absorb the noise generated by the rotation.

2. A differential with self-locking function according to claim 1, characterized in that: The end of the output shaft (5) is connected to a driving member (10) via a connecting member (9), and the surface of the driving member (10) is connected to the outside of the protective cover (1) via a connecting rod (11).

3. A differential with self-locking function according to claim 1, characterized in that: The output shaft (5) is provided with a buffer assembly, and the buffer assembly comprises a worm (12) mounted on the output shaft (5).

4. A differential with self-locking function according to claim 3, characterized in that: The side end of the worm (12) is meshedly connected with a worm wheel (13), and the worm wheel (13) is connected to a support seat (14) via a rotating shaft (23), and the support seat (14) is installed inside the protective cover (1).

5. The differential with self-locking function according to claim 1, characterized in that: An auxiliary component is arranged inside the protective cover (1), and the auxiliary component comprises a storage box (16) installed inside the protective cover (1).

6. A differential with self-locking function according to claim 5, characterized in that: A connection port (17) is provided on the surface of the storage box (16), an air bag (18) is arranged inside the storage box (16), and the air bag (18) is connected to a pipe (20) via a hose (19).

7. A differential with self-locking function according to claim 6, characterized in that: The pipeline (20) is installed at the bottom of the driving gear (3), a through hole (21) is opened on the pipeline (20), and a nozzle (22) is installed on the pipeline (20).

8. The differential with self-locking function according to claim 4, characterized in that: An eccentric wheel (24) is sleeved on the outer side of the rotating shaft (23), and the eccentric wheel (24) is installed on the side end of the air bag (18).

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