Differential mechanism with locking function

Abstract

The utility model relates to a differential mechanism with a locking function. The differential mechanism comprises a differential mechanism body. A transmission gear is installed in the middle of the differential mechanism body. The side wall of the transmission gear is fixedly connected with a liquid storage tank; the middle of the transmission gear is slidably connected with a plurality of sliding columns. A plurality of liquid inlet pipes are fixedly connected to the side wall of the transmission gear; the liquid inlet pipe is located at the end of the sliding column, and the inner diameter of the liquid inlet pipe is equal to the outer diameter of the sliding column. A plurality of liquid inlet grooves are formed in the joint of the liquid inlet pipe and the transmission gear; liquid through holes are formed in the two ends of the sliding column; a spring is mounted in the liquid inlet pipe; a liquid adding groove is formed in the middle of the liquid storage tank; a sliding rail is fixedly connected to the interior of the liquid storage tank; the liquid adding groove is located in the middle of the sliding rail. By means of the structure, when the transmission gear is lubricated, the situation that lubricating liquid splashes is reduced, and therefore the situation that the lubricating effect is reduced is reduced, and meanwhile loss of the lubricating liquid is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile transmission, in particular to a differential with locking. Background Art

[0002] A differential is a device used to adjust the speed difference between the left and right wheels or the front and rear wheels of a car. Its main function is to compensate for the speed difference between the left and right drive wheels or between the drive axles, allowing the vehicle to turn smoothly and eliminate wheel slippage that may be caused by factors such as different wheel rolling radius or road undulations.

[0003] Differential locking means locking the differential through a certain mechanism or device, so that the unequal speed rotation of the half shafts on both sides of the differential is forced into equal speed rotation, so as to improve the vehicle's ability to pass on harsh roads.

[0004] In daily use, the differential gears need to be lubricated with lubricant to reduce wear between the gears. However, after the lubricant is applied to the surface of the differential gears, the lubricant on the surface is easily thrown out when the differential gears rotate, resulting in a reduction in the lubrication effect and a reduction in cleanliness.

[0005] To this end, the utility model provides a differential with a lock. Utility Model Content

[0006] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the lubricating liquid on the surface of the intermediate speed gear is easily thrown out when the intermediate speed gear rotates in the prior art, thereby reducing the lubrication effect and the cleanliness.

[0007] In order to solve the above technical problems, the utility model provides a locking differential, comprising a differential body; a transmission gear is installed in the middle of the differential body; a liquid storage tank is fixedly connected to the side wall of the transmission gear; a plurality of sliding columns are slidably connected to the middle of the transmission gear; a plurality of liquid inlet pipes are fixedly connected to the side wall of the transmission gear; the liquid inlet pipe is located at the end of the sliding column, and the inner diameter of the liquid inlet pipe is equal to the outer diameter of the sliding column; a plurality of liquid inlet grooves are provided at the connection between the liquid inlet pipe and the transmission gear; liquid holes are provided at both ends of the sliding column; a spring is installed inside the liquid inlet pipe; through the above structure, when lubricating the transmission gear, the splashing of lubricating liquid can be reduced, thereby reducing the reduction of lubrication effect and reducing the loss of lubricating liquid.

[0008] In one embodiment of the utility model, a liquid adding groove is provided in the middle of the liquid storage tank; a slide rail is fixedly connected to the inside of the liquid storage tank; the liquid adding groove is located in the middle of the slide rail; a slide plate is slidably connected to the middle of the slide rail; a paddle plate is fixedly connected to the middle of the slide plate; the paddle plate is slidably connected to the middle of the liquid adding groove; two groups of liquid adding holes are symmetrically arranged in the middle of the slide plate; the distance between the two groups of liquid adding holes is greater than the length of the liquid adding groove; through the above structure, the lubricating liquid can be conveniently added to the inside of the liquid storage tank, while reducing the possibility of contamination of the lubricating liquid by external impurities.

[0009] In one embodiment of the utility model, the inner wall of the liquid inlet pipe is fixedly connected with absorbent cotton; the absorbent cotton is located inside the spring; through the above structure, when the lubricating liquid content inside the liquid storage tank is low, the liquid storage capacity of the liquid inlet pipe can be improved and the frequency of filling the lubricating liquid can be reduced.

[0010] In one embodiment of the utility model, an elastic film is fixedly connected to the middle part of the inner side of the sliding column; an elastic hole is opened in the middle part of the elastic film; the elastic hole remains in a closed state when no force is applied; through the above structure, when the sliding column is not squeezed by the engine gear, it is difficult for the lubricating fluid to flow out through the liquid hole, thereby reducing the loss of the lubricating fluid and further reducing the frequency of adding the lubricating fluid.

[0011] In one embodiment of the utility model, a plurality of pull ropes are fixedly connected to one end of the sliding column close to the absorbent cotton; the plurality of pull ropes extend into the interior of the absorbent cotton; a plurality of fixing rings are fixedly connected to a middle portion of a section of the pull rope located inside the absorbent cotton; through the above structure, the elasticity of the absorbent cotton is reduced due to long-term use, thereby reducing the decrease in the absorbent cotton's liquid absorption capacity.

[0012] In one embodiment of the utility model, a plurality of baffles are fixedly connected to one side of the liquid inlet pipe of the transmission gear; each of the baffles surrounds a liquid inlet pipe; through the above structure, the frequency of filling the lubricating fluid can be further reduced.

[0013] In one embodiment of the utility model, bolts are threadedly connected on both sides of the liquid adding tank; a pair of the bolts are located on both sides of the shift plate; through the above structure, the slide plate is prevented from being offset due to the vibration centrifugal force during the operation of the equipment, further reducing the occurrence of lubricating liquid being thrown out of the liquid adding tank.

[0014] In one embodiment of the utility model, the slide post is located between a plurality of teeth of the transmission gear; and the diameter of the slide post is smaller than the tooth spacing of the transmission gear; through the above structure, the position that is prone to wear can be accurately lubricated.

[0015] The above technical solution of the utility model has the following advantages compared with the prior art:

[0016] The utility model discloses a locking differential, which squeezes the sliding column through the automobile engine gear, so that the end of the sliding column slides toward the inside of the liquid inlet pipe, and the lubricating liquid in the liquid inlet pipe flows into the interior of the sliding column through the liquid through hole and sprays out from the other end of the sliding column to lubricate the contact surface between the transmission gear and the engine gear, while the part of the sliding column that is not in contact with the engine gear remains motionless under the elastic force of the spring, and the lubricating liquid in the liquid inlet pipe will not easily flow out from the tiny liquid through hole. Through the above structure, when lubricating the transmission gear, the splashing of the lubricating liquid can be reduced, thereby reducing the reduction of the lubrication effect and reducing the loss of the lubricating liquid.

[0017] The utility model discloses a locking differential, by moving the paddle plate to the two sides of the liquid adding tank, so that the liquid adding holes are exposed at the bottom of the liquid adding tank, thereby filling the lubricating liquid into the liquid storage tank, and moving the paddle plate to the middle position of the liquid adding tank so that the multiple liquid adding holes are blocked by the liquid storage tank, making it difficult for external impurities to enter the liquid storage tank. Through the above structure, the lubricating liquid can be conveniently added to the liquid storage tank, while reducing the possibility of external impurities polluting the lubricating liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the transmission gear in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the liquid storage tank in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the liquid adding tank in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the baffle in the utility model;

[0024] Figure 6 It is a structural schematic diagram of the liquid inlet pipe in the utility model;

[0025] Explanation of the reference numerals in the drawings in the specification: 1. Differential body; 12. Transmission gear; 13. Liquid reservoir; 14. Sliding column; 15. Liquid inlet pipe; 16. Liquid inlet tank; 17. Liquid passage hole; 18. Spring; 2. Liquid adding tank; 21. Slide rail; 22. Slide plate; 23. Paddle plate; 24. Liquid adding hole; 3. Liquid absorbent cotton; 4. Elastic membrane; 41. Elastic hole; 5. Pull rope; 51. Fixing ring; 6. Baffle; 7. Bolt. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] Reference Figures 1 to 6 As shown, a locking differential according to an embodiment of the utility model comprises a differential body 1; a transmission gear 12 is installed in the middle of the differential body 1; a liquid storage tank 13 is fixedly connected to the side wall of the transmission gear 12; a plurality of sliding columns 14 are slidably connected to the middle of the transmission gear 12; a plurality of liquid inlet pipes 15 are fixedly connected to the side wall of the transmission gear 12; the liquid inlet pipe 15 is located at the end of the sliding column 14, and the inner diameter of the liquid inlet pipe 15 is equal to the outer diameter of the sliding column 14; a plurality of liquid inlet grooves 16 are provided at the connection between the liquid inlet pipe 15 and the transmission gear 12; liquid holes 17 are provided at both ends of the sliding column 14; a spring 18 is installed inside the liquid inlet pipe 15; when working, lubricating liquid is added to the inside of the liquid storage tank 13, and then as the car runs, the gear at the output end of the car engine will cooperate with the transmission gear 12 to drive the transmission gear 12 to rotate, and during the rotation of the transmission gear 12, the lubricating liquid inside the liquid storage tank 13 will enter the liquid inlet pipe through the plurality of liquid inlet grooves 16 The inner part of the slide post 15 is provided with a plurality of sliding parts, and the sliding parts 14 and 15 are provided with a plurality of sliding parts, and the plurality of sliding parts 14 and 15 are provided with a plurality of sliding parts.

[0028] Reference Figures 1 to 5As shown, a liquid adding tank 2 is provided in the middle of the liquid storage tank 13; a slide rail 21 is fixedly connected to the inside of the liquid storage tank 13; the liquid adding tank 2 is located in the middle of the slide rail 21; a slide plate 22 is slidably connected to the middle of the slide rail 21; a paddle plate 23 is fixedly connected to the middle of the slide plate 22; the paddle plate 23 is slidably connected to the middle of the liquid adding tank 2; two groups of liquid adding holes 24 are symmetrically arranged in the middle of the slide plate 22; the distance between the two groups of liquid adding holes 24 is greater than the length of the liquid adding tank 2; when working, when it is necessary to add liquid to the liquid storage tank 13 When adding lubricating liquid inside, the paddle 23 is pushed toward the two sides of the liquid adding groove 2 so that the liquid adding holes 24 are exposed at the bottom of the liquid adding groove 2, thereby adding lubricating liquid to the liquid storage tank 13. After the filling is completed, the paddle 23 is pushed to the middle position of the liquid adding groove 2 so that multiple liquid adding holes 24 are blocked by the liquid storage tank 13 to reduce the occurrence of external impurities entering the liquid storage tank 13. Through the above structure, the lubricating liquid can be easily added to the liquid storage tank 13, while reducing the occurrence of external impurities causing contamination to the lubricating liquid.

[0029] Reference Figures 1 to 6 As shown, the inner wall of the liquid inlet pipe 15 is fixedly connected with a liquid absorbent cotton 3; the liquid absorbent cotton 3 is located inside the spring 18; during operation, as the lubricating liquid is consumed, the liquid level of the lubricating liquid inside the liquid storage tank 13 will drop, thereby causing the lubricating liquid entering the liquid inlet pipe 15 to easily flow out through the liquid inlet groove 16. By setting the liquid absorbent cotton 3, the lubricating liquid entering the liquid inlet pipe 15 can be immersed in the liquid absorbent cotton 3, so that when the slide column 14 squeezes the liquid absorbent cotton 3, the lubricating liquid inside the liquid absorbent cotton 3 is squeezed into the slide column 14. Through the above structure, when the lubricating liquid content in the liquid storage tank 13 is less, the liquid storage capacity of the liquid inlet pipe 15 can be improved, and the filling frequency of the lubricating liquid can be reduced.

[0030] Reference Figures 1 to 6 As shown, an elastic film 4 is fixedly connected to the middle part of the inner side of the sliding column 14; an elastic hole 41 is opened in the middle part of the elastic film 4; the elastic hole 41 remains in a closed state when no force is applied; during operation, when the sliding column 14 is not squeezed and moved, the elastic film 4 will remain in a contracted state, so that the elastic hole 41 is closed, and the lubricating liquid inside the liquid inlet pipe 15 cannot flow out through the elastic hole 41 at this time. After the end of the sliding column 14 enters the inside of the liquid inlet pipe 15, the hydraulic pressure inside the liquid inlet pipe 15 will cause the elastic film 4 to expand and deform, thereby opening the elastic hole 41, and the lubricating liquid can flow normally at this time. Through the above structure, when the sliding column 14 is not squeezed by the engine gear, the lubricating liquid is difficult to flow out through the liquid hole 17, thereby reducing the loss of the lubricating liquid and further reducing the frequency of filling the lubricating liquid.

[0031] Reference Figures 1 to 6As shown, a plurality of pull ropes 5 are fixedly connected to one end of the slide post 14 close to the liquid absorbent cotton 3; the plurality of pull ropes 5 extend to the interior of the liquid absorbent cotton 3; a plurality of fixing rings 51 are fixedly connected to a middle portion of a section of the pull rope 5 located inside the liquid absorbent cotton 3; during operation, after the slide post 14 squeezes the liquid absorbent cotton 3 to squeeze out the lubricating liquid inside the liquid absorbent cotton 3, the slide post 14 will leave from the liquid inlet pipe 15 under the elastic force of the spring 18, and at this time, the pull rope 5 will be straightened with the movement of the slide post 14, so that the plurality of fixing rings 51 will drive the liquid absorbent cotton 3 to stretch. Through the above structure, the elasticity reduction of the liquid absorbent cotton 3 due to long-term use is reduced, thereby reducing the reduction in the liquid absorption capacity of the liquid absorbent cotton 3.

[0032] Reference Figures 1 to 5 As shown, the transmission gear 12 is provided with a plurality of baffles 6 fixedly connected to one side of the liquid inlet pipe 15; each of the baffles 6 is arranged to surround a liquid inlet pipe 15; during operation, when the lubricating liquid content in the liquid storage tank 13 is reduced to a certain level, it is difficult for the lubricating liquid to enter the liquid inlet pipe 15 through the liquid inlet groove 16. Through the setting of the baffle 6, the lubricating liquid will be blocked by the baffle 6 when the transmission gear 12 rotates, thereby accumulating inside the baffle 6, so that the residual lubricating liquid can enter the liquid inlet pipe 15. Through the above structure, the frequency of filling the lubricating liquid can be further reduced.

[0033] Reference Figure 4 As shown, bolts 7 are threadedly connected on both sides of the liquid adding tank 2; a pair of the bolts 7 are located on both sides of the dial plate 23; during operation, after the lubricating liquid is filled, the pair of bolts 7 are rotated to adjust the end positions of the pair of bolts 7, so that the pair of bolts 7 limit the dial plate 23 to prevent the slide plate 22 from being offset due to the vibration centrifugal force during the operation of the equipment, thereby further reducing the occurrence of the lubricating liquid being thrown out of the liquid adding tank 2.

[0034] Reference Figure 2 As shown, the slide post 14 is located between a plurality of teeth of the transmission gear 12; and the diameter of the slide post 14 is smaller than the tooth spacing of the transmission gear 12; during operation, as the engine gear and the transmission gear 12 cooperate with each other, the teeth of the engine gear squeeze the slide post 14, and at the same time, lubricating liquid is squeezed out from the end of the slide post 14 to lubricate the teeth of the engine gear. Through the above structure, the position that is prone to wear can be accurately lubricated.

[0035] During operation, lubricating liquid is added to the liquid reservoir 13. Then, as the car runs, the gear at the output end of the car engine cooperates with the transmission gear 12 to drive the transmission gear 12 to rotate. During the rotation of the transmission gear 12, the lubricating liquid in the liquid reservoir 13 enters the liquid inlet pipe 15 through multiple liquid inlet grooves 16. As the transmission cooperates between the transmission gear 12 and the engine gear, the contact portion between the engine gear and the transmission gear 12 squeezes the corresponding sliding column 14, causing the end of the sliding column 14 to slide toward the inside of the liquid inlet pipe 15. After the sliding distance of the end of the sliding column 14 exceeds the width of the liquid inlet groove 16, the lubricating liquid in the liquid inlet pipe 15 can no longer flow out of the liquid inlet groove 16. As the sliding column 14 continues to slide, the liquid inlet groove 16 The lubricating liquid in the tube 15 will flow into the interior of the slide column 14 through the liquid through hole 17 and spray out from the other end of the slide column 14 to lubricate the contact surface between the transmission gear 12 and the engine gear, while the part of the slide column 14 that is not in contact with the engine gear will remain motionless under the elastic force of the spring 18, so that the lubricating liquid in the liquid inlet tube 15 can flow freely in the liquid inlet groove 16 and will not easily flow out from the tiny liquid through hole 17. When it is necessary to add lubricating liquid to the liquid storage tank 13, the paddle 23 is moved to both sides of the liquid adding groove 2 so that the liquid adding holes 24 are exposed at the bottom of the liquid adding groove 2, thereby adding lubricating liquid to the liquid storage tank 13. After the filling is completed, the paddle 23 is moved to the middle position of the liquid adding groove 2 so that the multiple liquid adding holes 24 are blocked by the liquid storage tank 13 to prevent the lubricating liquid from being added to the liquid storage tank 13. In order to reduce the possibility of external impurities entering the liquid storage tank 13, as the lubricating liquid is consumed, the level of the lubricating liquid in the liquid storage tank 13 will drop, which will cause the lubricating liquid entering the liquid inlet pipe 15 to easily flow out through the liquid inlet groove 16. By setting the absorbent cotton 3, the lubricating liquid entering the liquid inlet pipe 15 can be immersed in the absorbent cotton 3, so that when the slide column 14 squeezes the absorbent cotton 3, the lubricating liquid in the absorbent cotton 3 is squeezed into the slide column 14. When the slide column 14 moves without being squeezed, the elastic membrane 4 will remain in a contracted state, so that the elastic hole 41 is closed. At this time, the lubricating liquid in the liquid inlet pipe 15 cannot flow out through the elastic hole 41. After the end of the slide column 14 enters the liquid inlet pipe 15, the hydraulic pressure in the liquid inlet pipe 15 will The elastic membrane 4 is expanded and deformed, thereby opening the elastic hole 41. At this time, the lubricating liquid can flow normally. After the slide column 14 squeezes the absorbent cotton 3 to squeeze out the lubricating liquid inside the absorbent cotton 3, the slide column 14 will leave the liquid inlet pipe 15 under the elastic force of the spring 18. At this time, the pull rope 5 will be straightened with the movement of the slide column 14, so that the multiple fixing rings 51 will drive the absorbent cotton 3 to stretch. When the lubricating liquid content in the liquid storage tank 13 is reduced to a certain level, it is difficult for the lubricating liquid to enter the liquid inlet pipe 15 through the liquid inlet groove 16. Through the setting of the baffle 6, the lubricating liquid will be blocked by the baffle 6 when the transmission gear 12 rotates, so that it accumulates inside the baffle 6, so that the residual lubricating liquid can enter the inside of the liquid inlet pipe 15. After the filling of the lubricating liquid is completed,The pair of bolts 7 are rotated to adjust the end positions of the pair of bolts 7, so that the pair of bolts 7 limit the shift plate 23 to prevent the slide plate 22 from being offset due to the centrifugal force of vibration during the operation of the equipment. As the engine gear and the transmission gear 12 cooperate with each other, the teeth of the engine gear squeeze the slide column 14, and at the same time, lubricating liquid is squeezed out from the end of the slide column 14 to lubricate the teeth of the engine gear.

[0036] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A locking differential, comprising a differential body (1); characterized in that: A transmission gear (12) is installed in the middle of the differential body (1); a liquid storage tank (13) is fixedly connected to the side wall of the transmission gear (12); a plurality of sliding columns (14) are slidably connected to the middle of the transmission gear (12); a plurality of liquid inlet pipes (15) are fixedly connected to the side wall of the transmission gear (12); the liquid inlet pipe (15) is located at the end of the sliding column (14), and the inner diameter of the liquid inlet pipe (15) is equal to the outer diameter of the sliding column (14); a plurality of liquid inlet grooves (16) are provided at the connection between the liquid inlet pipe (15) and the transmission gear (12); liquid holes (17) are provided at both ends of the sliding column (14); and a spring (18) is installed inside the liquid inlet pipe (15).

2. A locking differential according to claim 1, characterized in that: A liquid adding tank (2) is provided in the middle of the liquid storage tank (13); a slide rail (21) is fixedly connected to the inside of the liquid storage tank (13); the liquid adding tank (2) is located in the middle of the slide rail (21); a slide plate (22) is slidably connected to the middle of the slide rail (21); a paddle plate (23) is fixedly connected to the middle of the slide plate (22); the paddle plate (23) is slidably connected to the middle of the liquid adding tank (2); two groups of liquid adding holes (24) are symmetrically arranged in the middle of the slide plate (22); the distance between the two groups of liquid adding holes (24) is greater than the length of the liquid adding tank (2).

3. A locking differential according to claim 2, characterized in that: The inner side wall of the liquid inlet pipe (15) is fixedly connected with liquid absorbent cotton (3); the liquid absorbent cotton (3) is located inside the spring (18).

4. A locking differential according to claim 3, characterized in that: An elastic membrane (4) is fixedly connected to the middle part of the inner side of the sliding column (14); an elastic hole (41) is opened in the middle part of the elastic membrane (4); and the elastic hole (41) remains in a closed state when no force is applied.

5. A locking differential according to claim 4, characterized in that: A plurality of drawstrings (5) are fixedly connected to one end of the sliding column (14) close to the liquid absorbent cotton (3); the plurality of drawstrings (5) extend into the interior of the liquid absorbent cotton (3); and a plurality of fixing rings (51) are fixedly connected to a middle portion of a section of the drawstring (5) located inside the liquid absorbent cotton (3).

6. A locking differential according to claim 5, characterized in that: The transmission gear (12) is provided with a plurality of baffles (6) fixedly connected to one side of the liquid inlet pipe (15); each of the baffles (6) is arranged to surround a liquid inlet pipe (15).

7. A locking differential according to claim 6, characterized in that: Bolts (7) are threadedly connected on both sides of the liquid adding tank (2); a pair of the bolts (7) are located on both sides of the dial plate (23).

8. A locking differential according to claim 7, characterized in that: The slide column (14) is located between a plurality of teeth of the transmission gear (12); and the diameter of the slide column (14) is smaller than the tooth spacing of the transmission gear (12).

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