Lossless shifting fork clutch

Abstract

The utility model relates to the field of shifting fork clutches, and discloses a lossless shifting fork clutch which comprises a clutch body, a heat dissipation assembly is installed outside the clutch body, a lubricating assembly is installed on the front side of the clutch body, the heat dissipation assembly comprises a plurality of fins, the inner sides of the fins are fixedly connected to the outside of the clutch body, and the inner sides of the fins are fixedly connected to the outer side of the clutch body. A first heat exchange pipe is fixedly connected between the interiors of the multiple fins, a sleeve shell is fixedly connected to the output end of the first heat exchange pipe, a second heat exchange pipe is fixedly connected to the rear side of the sleeve shell, and a water return pipe is fixedly connected to the right side of the sleeve shell. According to the utility model, the first piston is driven to compress the first spring through the thermal expansion and cold contraction characteristic of paraffin, so that the sliding rod drives the second piston to move, the passing path of liquid output by the first heat exchange pipe is changed, the liquid enters the second heat exchange pipe in a large circulation mode and is directly drained from the water return pipe in a small circulation mode; therefore, the heat dissipation efficiency is automatically changed according to the heat of the clutch body, and the heat dissipation effect is better.

Description

Technical Field

[0001] This utility model relates to the field of shift fork clutches, and in particular to a non-destructive shift fork clutch. Background Technology

[0002] A shift fork clutch is a common mechanical transmission device widely used in automobiles, motorcycles, and other vehicles. Its main function is to control the power transmission between the engine and the transmission system by changing the engagement and disengagement state of the clutch. The shift fork clutch consists of main components such as the clutch shift fork, clutch pressure plate, and clutch disc. The working principle is that when the driver depresses the clutch pedal, the shift fork drives the clutch pressure plate through a connecting rod or hydraulic device, disengaging from the engine flywheel and preventing engine power from being transmitted to the gearbox, thereby enabling operations such as shifting gears and stopping the engine.

[0003] The shift fork clutch has a relatively simple structural design and can withstand high working pressure and temperature, thus having good durability and stability. It uses mechanical force transmission, is intuitive to operate, and is easy to maintain. In addition, the shift fork clutch can effectively reduce vibration during power transmission and improve driving comfort and smoothness. However, with the development of technology, automated clutches have gradually replaced traditional shift fork clutches, providing a more efficient and convenient operating experience.

[0004] When the shift fork clutch is in operation, the vehicle's clutch is pressed by foot, which drives the shift fork to engage the clutch and thus change the vehicle's gear. Since the clutch generates heat during operation, the traditional method of heat dissipation is through the airflow when the vehicle is moving. However, when the vehicle stops, effective heat dissipation is not possible, which is a significant limitation. Therefore, a non-destructive shift fork clutch is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a non-destructive shift fork clutch, which aims to improve the traditional heat dissipation method, which relies on the wind force when the vehicle is in motion, but cannot effectively dissipate heat when the vehicle stops, resulting in a significant limitation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a non-destructive shift fork clutch, comprising a clutch body, a heat dissipation component installed on the outside of the clutch body, and a lubrication component installed on the front side of the clutch body;

[0007] The heat dissipation assembly includes multiple fins. The inner side of each fin is fixedly connected to the outside of the clutch body. A heat exchange tube is fixedly connected between the inner sides of the multiple fins. A housing is fixedly connected to the output end of the heat exchange tube. A second heat exchange tube is fixedly connected to the rear side of the housing. A return water pipe is fixedly connected to the right side of the housing. A fixing plate is fixedly connected to the inner wall of the housing. A sliding rod is slidably connected inside the fixing plate. A piston is fixedly connected to the left end of the sliding rod. Paraffin wax is disposed on the left side of the piston. A spring is fixedly connected to the right side of the piston. A second piston is fixedly connected to the right end of the sliding rod.

[0008] As a further description of the above technical solution:

[0009] The lubrication assembly includes a cam and a housing. The cam is externally fixedly connected to the outside of the clutch body shaft. The housing is externally fixedly connected to the outside of the clutch body. Two springs are fixedly connected to the inner wall of the housing. A sliding plate is fixedly connected to the right end of the two springs. A push rod is fixedly connected to the right side of the sliding plate. Oil pipes are fixedly connected to both the front and rear sides of the housing. A one-way valve is fixedly connected to the outside of the oil pipes. A solenoid valve is fixedly connected to the outside of the rear oil pipe.

[0010] As a further description of the above technical solution:

[0011] The second heat exchange tube is fixedly connected to the inside of the fins, and the output end of the second heat exchange tube is fixedly connected to the outside of the return water pipe.

[0012] As a further description of the above technical solution:

[0013] The second piston is externally slidably connected to the inner wall of the casing, and the first piston is externally slidably connected to the inner wall of the casing.

[0014] As a further description of the above technical solution:

[0015] One right end of the spring is fixedly connected to the left side of the fixed plate, and the inner side of the spring is sleeved on the outside of the slide rod.

[0016] As a further description of the above technical solution:

[0017] The outer side of the cam abuts against the right end of the push rod, and the outer side of the slide plate is slidably connected to the inner wall of the housing.

[0018] As a further description of the above technical solution:

[0019] The oil pipe output end on the rear side is fixedly connected to the outside of the clutch body.

[0020] As a further description of the above technical solution:

[0021] The paraffin wax is placed inside the casing.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by utilizing the thermal expansion and contraction properties of paraffin, piston one is driven to compress spring one, causing the slide rod to drive piston two to move, changing the path of the liquid output from heat exchange tube one. The liquid entering heat exchange tube two is in a large circulation, while the liquid being discharged directly from the return water pipe is in a small circulation. In conjunction with the fins, the heat dissipation efficiency is automatically adjusted according to the heat of the clutch body, resulting in better heat dissipation.

[0024] 2. In this utility model, the cam is driven to rotate by the main shaft of the clutch and the push rod is moved, which causes the slide plate to compress the second spring. With the reaction force of the second spring and the two one-way valves, the lubricating oil is delivered along the oil pipe to the contact surface between the clutch shaft and the shift fork, thereby reducing the damage caused by friction. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a non-destructive shift fork clutch proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a heat exchange tube for a non-destructive shift fork clutch proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the piston two of a non-destructive shift fork clutch proposed in this utility model;

[0028] Figure 4 for Figure 1 Enlarged view of point A.

[0029] Figure 5 This is a schematic diagram of the slide plate of a non-destructive shift fork clutch proposed in this utility model.

[0030] Legend:

[0031] 1. Clutch body; 2. Fins; 3. Heat exchanger tube one; 4. Housing; 5. Heat exchanger tube two; 6. Return water pipe; 7. Fixing plate; 8. Slide rod; 9. Piston one; 10. Spring one; 11. Paraffin wax; 12. Piston two; 13. Cam; 14. Housing; 15. Spring two; 16. Slide plate; 17. Push rod; 18. Oil pipe; 19. Check valve; 20. Solenoid valve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3 The present invention provides an embodiment of a non-destructive shift fork clutch, comprising a clutch body 1, which is used to facilitate gear shifting by the driver. By pressing the clutch pedal, the shift fork pries the clutch pressure plate. A heat dissipation component is installed on the outside of the clutch body 1, and a lubrication component is installed on the front side of the clutch body 1.

[0034] The heat dissipation assembly includes multiple fins 2. The inner sides of the fins 2 are fixedly connected to the outside of the clutch body 1. Heat exchange tubes 3 are fixedly connected between the multiple fins 2. A housing 4 is fixedly connected to the output end of the heat exchange tube 3. A second heat exchange tube 5 is fixedly connected to the rear side of the housing 4. A return water pipe 6 is fixedly connected to the right side of the housing 4. A fixing plate 7 is fixedly connected to the inner wall of the housing 4. A slide rod 8 is slidably connected inside the fixing plate 7. A piston 9 is fixedly connected to the left end of the slide rod 8. Paraffin wax 11 is placed on the left side of the piston 9. A spring 10 is fixedly connected to the right side of the piston 9. A second piston 12 is fixedly connected to the right end of the slide rod 8. The fins 2 are used to dissipate heat for the clutch body 1. The heat exchange tubes 3 are used to exchange heat for the fins 2. The housing 4 is used to connect and protect the internal parts. The second heat exchange tube 5 is also used to exchange heat for the fins 2. The return water pipe 6 is used to return water to the vehicle's water tank. The input end of the heat exchange tube 3 and the output end of the return water pipe 6 are both connected to the vehicle's water cooling system. Plate 7 is used to separate the functional areas of housing 4. Slide rod 8 is used to make piston 19 and piston 212 move synchronously. Piston 19 is used to bear the thrust of spring 10 and paraffin 11. Spring 10 is used to push piston 19 to reset. Paraffin 11 moves piston 19 by means of thermal expansion and contraction. Paraffin 11 has a very low melting point. Piston 212 is used to switch the water inflow channel to realize the switching between large and small circulation. Heat exchange tube 25 is externally fixedly connected to the inside of fin 2 to realize heat exchange. The output end of heat exchange tube 25 is fixedly connected to the outside of return water pipe 6 to enable circulation. Piston 212 is externally slidably connected to the inner wall of housing 4. Piston 19 is externally slidably connected to the inner wall of housing 4. Housing 4 simultaneously restricts the movement direction of piston 19 and piston 212. The right end of spring 10 is fixedly connected to the left side of fixed plate 7. The inner side of spring 10 is sleeved on the outside of slide rod 8 to keep spring 10 stable. Paraffin 11 is externally located inside housing 4 to keep paraffin 11 stable.

[0035] Reference Figure 1 , Figure 4 , Figure 5 The lubrication assembly includes a cam 13 and a housing 14. The cam 13 is externally fixed to the outside of the clutch body 1 shaft, and the housing 14 is externally fixed to the outside of the clutch body 1. Two springs 15 are fixedly connected to the inner wall of the housing 14. A slide plate 16 is fixedly connected to the right end of the two springs 15. A push rod 17 is fixedly connected to the right side of the slide plate 16. Oil pipes 18 are fixedly connected to both the front and rear sides of the housing 14. A one-way valve 19 is fixedly connected to the outside of the oil pipes 18, and a solenoid valve 20 is fixedly connected to the outside of the rear oil pipe 18. The cam 13 is used to push the push rod 17 to move. The housing 14 is used to connect and protect the internal parts. The springs 15 are used to push the slide plate 16 to move. The slide plate 16 is used to withstand the springs. The thrust of spring 15 and push rod 17 is applied. Push rod 17 bears the thrust of cam 13 and drives slide plate 16 to compress spring 15. Oil pipe 18 is used to transport lubricating oil. The input end of oil pipe 18 is directly connected to the lubricating oil tank of the vehicle. One-way valve 19 is used to control the direction of lubricating oil delivery to prevent backflow. Solenoid valve 20 is controlled by the driver to open and close the rear oil pipe 18. Cam 13 abuts against the right end of push rod 17, thereby pushing push rod 17 to move. Slide plate 16 is slidably connected to the inner wall of housing 14 to limit the direction of movement of slide plate 16. The output end of rear oil pipe 18 is fixedly connected to the outside of clutch body 1, thereby delivering lubricating oil to the friction point.

[0036] Working principle: When using the clutch body 1, the movement of the shift fork is controlled by the clutch pedal to shift gears. During vehicle operation, the clutch body 1 gradually heats up. To protect the clutch body 1, heat dissipation is actively provided through heat exchanger to the fins 2. Water is then supplied to the fins 2 via heat exchanger pipe 3 for heat exchange, and then transported to the water tank via return pipe 6 for a small circulation. When the heat reaches the melting point of paraffin wax 11, the paraffin wax 11 melts, pushing piston 9 to compress spring 10, causing slide rod 8 to drive piston 12 to block the inlet of return pipe 6. The water output from heat exchanger pipe 3 then directly enters heat exchanger pipe 5 for a large circulation. Heat pipe 3 and heat exchanger pipe 5 work together to dissipate heat, which is then transported out through return water pipe 6. The heat dissipation mode is automatically switched to improve heat dissipation efficiency. After a period of use, the rotating shaft of the clutch body 1 will wear against the shift fork. At this time, lubrication is required in time. By controlling the solenoid valve 20 to open the oil pipe 18, the spring 15 will immediately push the slide plate 16 to reset, driving the push rod 17 to push out and contact the cam 13, pushing the slide plate 16 to compress the spring 15. This causes the positive and negative pressure inside the housing 14 to switch back and forth. With the help of two one-way valves 19, the lubricating oil is transported through the oil pipe 18 to the friction point between the rotating shaft and the shift fork for lubrication, so as to avoid wear and damage.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lossless fork clutch comprising a clutch body (1), characterized in that: A heat dissipation assembly is installed on the outside of the clutch body (1), and a lubrication assembly is installed on the front side of the clutch body (1); The heat dissipation assembly includes multiple fins (2), the inner side of which is fixedly connected to the outside of the clutch body (1). A heat exchange tube (3) is fixedly connected between the inner sides of the multiple fins (2). A housing (4) is fixedly connected to the output end of the heat exchange tube (3). A heat exchange tube (5) is fixedly connected to the rear side of the housing (4). A return water pipe (6) is fixedly connected to the right side of the housing (4). A fixing plate (7) is fixedly connected to the inner wall of the housing (4). A slide rod (8) is slidably connected inside the fixing plate (7). A piston (9) is fixedly connected to the left end of the slide rod (8). A paraffin wax (11) is provided on the left side of the piston (9). A spring (10) is fixedly connected to the right side of the piston (9). A piston (12) is fixedly connected to the right end of the slide rod (8).

2. A lossless fork clutch according to claim 1, wherein: The lubrication assembly includes a cam (13) and a housing (14). The cam (13) is fixedly connected to the outside of the rotating shaft of the clutch body (1). The housing (14) is fixedly connected to the outside of the clutch body (1). Two springs (15) are fixedly connected to the inner wall of the housing (14). A slide plate (16) is fixedly connected to the right end of the two springs (15). A push rod (17) is fixedly connected to the right side of the slide plate (16). Oil pipes (18) are fixedly connected to both the front and rear sides of the housing (14). A one-way valve (19) is fixedly connected to the outside of the oil pipes (18). A solenoid valve (20) is fixedly connected to the outside of the rear oil pipe (18).

3. A lossless fork clutch as in claim 1, wherein: The heat exchange tube 2 (5) is fixedly connected to the inside of the fin (2), and the output end of the heat exchange tube 2 (5) is fixedly connected to the outside of the return water pipe (6).

4. A lossless fork clutch as in claim 1, wherein: The piston 2 (12) is externally slidably connected to the inner wall of the casing (4), and the piston 1 (9) is externally slidably connected to the inner wall of the casing (4).

5. A lossless fork clutch as in claim 1, wherein: The right end of the spring (10) is fixedly connected to the left side of the fixed plate (7), and the inner side of the spring (10) is sleeved on the outside of the slide rod (8).

6. A lossless fork clutch as in claim 2, wherein: The cam (13) abuts against the right end of the push rod (17), and the slide plate (16) is slidably connected to the inner wall of the outer shell (14).

7. A lossless fork clutch as in claim 2, wherein: The output end of the oil pipe (18) on the rear side is fixedly connected to the outside of the clutch body (1).

8. A lossless fork clutch as in claim 1, wherein: The paraffin (11) is placed outside the casing (4).

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