A friction-efficient clutch

Abstract

This invention discloses a high-efficiency friction clutch. The device includes a flywheel, a cover on one side of the flywheel, an input shaft rotatably connected to one side of the cover, and a friction disc at one end of the input shaft. Multiple first friction plates and second friction plates are respectively arranged on the front and rear sides of the friction disc. A T-shaped groove is formed on the side of the first friction plate away from the friction disc, and an adjusting bolt that inserts into the friction disc is rotatably connected to the inner wall of the T-shaped groove. An internal hexagonal groove is formed on the side of the second friction plate away from the friction disc, and a fixing nut is slidably connected to the inner wall of the internal hexagonal groove. This invention facilitates the replacement of the first and second friction plates, ensuring friction performance and making the clutch more efficient. It also facilitates the fixing of the first and second friction plates and prevents them from loosening during use, thus avoiding problems affecting friction.

Description

Technical Field

[0001] This invention belongs to the field of clutch technology, specifically, it relates to a friction-efficient clutch. Background Technology

[0002] Clutches are commonly used components in mechanical transmissions, enabling the transmission system to be separated or engaged at any time. However, the friction plates in existing clutches are generally inconvenient to replace, and those that are easy to replace are poorly secured and prone to loosening. As a result, wear can affect the ability to separate or engage the transmission system at any time. Therefore, a clutch with easily replaceable friction plates is needed.

[0003] An existing patent (application number: CN109780083A) discloses a clutch comprising a drive plate and a bottom shaft fixedly mounted on the drive plate. Its features include: a separation positioning plate, a separation disc, and a positioning ring sequentially sleeved on the bottom shaft; a return pin on the drive plate that abuts against the lower surface of the separation positioning plate and can be pressed down and retracted; a locking device on the drive plate and the separation positioning plate, wherein the locking device is limitedly connected to the drive plate when the separation positioning plate is pressed down; a pressing force block on the separation positioning plate; a transmission device and a slider that cooperates with the pressing force block on the separation disc; and a positioning device on the positioning ring and the separation disc that enables the separation disc to reverse. This clutch is applicable to existing bicycles, ensuring chain transmission to the rear wheel and increasing the operational stability and reliability of the entire transmission system. However, the friction plates in this clutch are inconvenient to replace, thus causing wear that affects the ability to easily separate or engage the transmission system.

[0004] Existing patent (application number: CN115182940A) discloses a high-efficiency heat-dissipating clutch friction plate, belonging to the field of clutch technology. It includes an outer disc and a central disc portion located at its center. The outer disc comprises two disc bodies fixed to its exterior by disc connecting rivets and disc connecting rivets. The central disc portion includes two core discs connected by a positioning shaft and countersunk screws. A central cylinder is located at the center of the two core discs. Three buffer springs are arranged in a ring array inside the core discs outside the central cylinder. Heat-conducting fluid grooves are formed on the end face edges of the disc bodies. The two ends of the hot liquid tank are outlets through which the main body of the disc passes. The intervals of the heat transfer liquid tank are provided with external pin holes that pass through the main body of the disc. The inner side of the main body of the disc has internal pin holes. The inner edge of the main body of the disc is provided with three pairs of annularly arrayed inner top springs. This high-efficiency heat dissipation clutch friction plate has a fast heat dissipation speed, avoiding the problem of excessively rapid reduction of friction due to heat decay. However, although the friction plate in this clutch is easy to replace, the installation and fixing effect after replacement is poor. In actual application, it is easy to loosen, which will affect its functionality.

[0005] In view of the above, this application is hereby submitted. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a friction-efficient clutch to achieve the desired purpose, namely, to facilitate the replacement of friction plates and prevent loosening.

[0007] To solve the above-mentioned technical problems, the present invention provides a high-efficiency friction clutch, including a flywheel, a cover on one side of the flywheel, an input shaft rotatably connected to one side of the cover, and a friction disc connected to one end of the input shaft; a plurality of first friction plates and second friction plates are respectively provided on the front and rear sides of the friction disc; a T-shaped groove is formed on the side of the first friction plate away from the friction disc, and an adjusting bolt that is inserted into the friction disc is rotatably connected to the inner wall of the T-shaped groove; an internal hexagonal groove is formed on the side of the second friction plate away from the friction disc, and a fixing nut is slidably connected to the inner wall of the internal hexagonal groove; two metal washers are fitted between the T-shaped groove and the adjusting bolt and between the internal hexagonal groove and the fixing nut; radial ratchet teeth are integrally formed on the opposite sides of two adjacent metal washers, and radial serrations are integrally formed on the opposite sides of two adjacent metal washers.

[0008] Furthermore, the friction disc, the first friction plate, and the second friction plate are all made of metal ceramic.

[0009] Furthermore, both the first friction plate and the second friction plate are arranged in a ring array on the friction disk.

[0010] Furthermore, two jackets are installed on the outer wall of the cover, a cooling medium is injected between the jackets and the cover, a semiconductor cooling chip is installed on the inner wall of the jacket, and multiple arc-shaped water pipes are installed between the two jackets, with the arc-shaped water pipes communicating with the interior of the jackets.

[0011] Furthermore, the outer wall of the jacket is threaded with a sealing plug, and the outer surface of the sealing plug is integrally formed with a finger groove.

[0012] Furthermore, a fixing bolt that is threadedly connected to the flywheel is inserted into the outer wall of the cover, and an elastic washer is provided between the fixing bolt and the flywheel.

[0013] Furthermore, the outer wall of the cover has two ventilation openings located between the two jackets.

[0014] Furthermore, a filter screen is provided on the inner wall of the vent.

[0015] Furthermore, a frame is installed on the inner wall of the vent, the inner wall of the frame is slidably connected to the outer wall of the filter screen, and a rod is inserted into the outer wall of the frame. One end of the rod abuts against the outer wall of the filter screen, and a fixing block is installed at the other end of the rod. A tension spring is sleeved on the outside of the rod, and the two ends of the tension spring are respectively connected to the frame and the fixing block.

[0016] Furthermore, a pull ring is installed on the outer wall of the fixing block, and the outer surface of the pull ring is integrally formed with anti-slip particles.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0018] 1. In this invention, the tension formed by the positive and negative radial ratchet teeth on opposite sides of two adjacent metal washers is used to adjust the bolt and fix the nut. At the same time, the internal hexagonal groove also has the effect of fixing the nut, so that the nut can only move horizontally and cannot rotate. Since the inclination angle of the positive radial ratchet teeth is greater than the pitch of the thread end of the adjusting bolt, a wedge effect is generated at the thread head of the adjusting bolt, thereby fixing the adjusting bolt and preventing loosening. Similarly, the tightening effect of the fixing nut on the adjusting bolt is better, thus forming multiple anti-loosening effects. Furthermore, by setting radial serrations, the friction between the adjusting bolt and the fixing nut and the T-slot and the internal hexagonal groove respectively is increased, making the anti-loosening effect even better. At the same time, it is easy to replace the first friction plate and the second friction plate, ensuring the friction effect and making this clutch more efficient.

[0019] 2. In this invention, by setting two ventilation openings, the internal and external air circulation of the cover is facilitated, which in turn facilitates heat dissipation of the friction disc, the first friction plate, and the second friction plate inside the cover. By setting a filter screen, the air passing through the ventilation openings is filtered, thus achieving a dustproof effect. This ensures the inner wall environment of the cover and avoids the problem of dust affecting the service life of the friction disc, the first friction plate, and the second friction plate. Pulling the fixing block makes it easy to move the insertion rod away from the filter screen, and by utilizing the elastic reset principle of the tension spring, it is easy to install, disassemble, clean, and replace the filter screen, thus avoiding the effect of limited dust holding capacity of the filter screen affecting ventilation, heat dissipation, and dustproof effects.

[0020] 3. In this invention, by injecting a cooling medium into the jacket, heat dissipation and cooling of the cover are facilitated. By setting a semiconductor cooling chip, the cooling medium is cooled, resulting in better heat dissipation and cooling of the cover, thereby extending the service life of the clutch. By setting multiple arc-shaped water pipes in conjunction with the cooling medium, the airflow passing through is cooled, thus reducing the temperature of the airflow entering the cover through the filter, thereby improving the air cooling effect. Attached Figure Description

[0021] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0022] Figure 1 A schematic diagram of the overall structure of a high-efficiency friction clutch;

[0023] Figure 2 This is a schematic cross-sectional view of a high-efficiency friction clutch.

[0024] Figure 3 This is a three-dimensional structural diagram of the friction disc in a high-efficiency friction clutch;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the friction disc in a high-efficiency friction clutch.

[0026] Figure 5 This is a schematic diagram of the planar structure of a metal gasket in a high-efficiency friction clutch.

[0027] Labels in the diagram: 1. Flywheel; 2. Cover; 3. Input shaft; 4. Release bearing; 5. Release fork; 6. Pressure plate; 7. Limiting rod; 8. Elastic element; 9. Through groove; 10. Compression spring; 11. Friction disc; 12. First friction plate; 13. Second friction plate; 14. T-slot; 15. Adjusting bolt; 16. Socket hexagonal groove; 17. Fixing nut; 18. Metal washer; 19. Radial ratchet; 20. Radial serration; 21. Jacket; 22. Refrigerant; 23. Semiconductor refrigeration chip; 24. Arc-shaped water pipe; 25. Sealing plug; 26. Filter screen; 27. Frame; 28. Insert rod; 29. ​​Fixing block; 30. Tension spring; 31. Pull ring; 32. Fixing bolt; 33. Elastic washer.

[0028] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Clutches are common components in mechanical transmissions, allowing the transmission system to be separated or engaged at any time. Because the friction plates in existing clutches are inconvenient to replace or prone to loosening after replacement, wear can affect the ability to separate or engage the transmission system effectively. Therefore, a clutch that allows for easy replacement of the friction plates and prevents loosening is needed.

[0033] like Figures 1 to 5 As shown, the present invention provides a friction-efficient clutch.

[0034] Specifically, by Figure 1-5A friction-efficient clutch is provided, comprising a flywheel 1, a cover 2 on one side of the flywheel 1, an input shaft 3 rotatably connected to one side of the cover 2, a friction disc 11 connected to one end of the input shaft 3, a release bearing 4 between the cover 2 and the input shaft 3, a release fork 5 mounted on the release bearing 4, a pressure plate 6 slidably connected to the outer wall of the input shaft 3, an elastic element 8 mounted on the inner wall of the pressure plate 6, the end of the elastic element 8 away from the pressure plate 6 abutting against the cover 2 and the release bearing 4, a limit rod 7 mounted on the inner wall of the cover 2, a through groove 9 through one side of the limit rod 7 for the elastic element 8 to pass through, and pulling the release fork 5 causes the release bearing 4 to move to the left, thereby driving the elastic element 8. The component 8 deforms, and the pressure plate 6 is moved away from the friction plate 11 by the limit rod 7 and the through groove 9. At the same time, the release bearing 4 drives the input shaft 3 to move the friction plate 11 away from the flywheel 1, thereby allowing the transmission system to be disengaged or engaged at any time. The specific composition and working principle of the clutch are common knowledge known to those skilled in the art, and will not be elaborated here. Multiple first friction plates 12 and second friction plates 13 are respectively provided on the front and rear sides of the friction plate 11. A T-shaped groove 14 is opened on the side of the first friction plate 12 away from the friction plate 11. The inner wall of the T-shaped groove 14 is rotatably connected to an adjusting bolt 15 that is inserted into the friction plate 11. The second friction plate 13 is away from the friction plate 11. One side of the device has an internal hexagonal groove 16, and a fixing nut 17 is slidably connected to the inner wall of the internal hexagonal groove 16. Two metal washers 18 are fitted between the T-slot 14 and the adjusting bolt 15, and between the internal hexagonal groove 16 and the fixing nut 17. Each pair of adjacent metal washers 18 has radial ratchet teeth 19 integrally formed on opposite sides, and radial serrations 20 integrally formed on opposite sides. The tension formed by the opposing radial ratchet teeth 19 on opposite sides of the adjacent metal washers 18 is used to adjust the bolt 15 and the fixing nut 17. Simultaneously, the internal hexagonal groove 16 also serves to fix the fixing nut 17, ensuring that the fixing nut 17 can only be water-adjusted. The clutch can move horizontally but cannot rotate because the inclination angle of the radial ratchet 19 is greater than the thread pitch of the thread end of the adjusting bolt 15. Therefore, a wedge effect is generated on the thread head of the adjusting bolt 15, which fixes the adjusting bolt 15 and prevents it from loosening. Similarly, the tightening effect of the fixing nut 17 on the adjusting bolt 15 is better, thus forming multiple anti-loosening effects. Furthermore, by setting the radial serrations 20, the friction between the adjusting bolt 15 and the fixing nut 17 and the T-slot 14 and the internal hexagonal slot 16 respectively is increased, making the anti-loosening effect even better. At the same time, it is convenient to replace the first friction plate 12 and the second friction plate 13, ensuring the friction effect and making this clutch more efficient.

[0035] In addition, such as Figure 3As shown, the friction disc 11, the first friction plate 12, and the second friction plate 13 are all made of cermet. Cermet is a composite material of ceramic and metal made by powder metallurgy, which combines the advantages of both metal and ceramic. Specifically, it has the toughness and bending resistance of metal and the high temperature resistance, high strength, and oxidation resistance of ceramic. This ensures that the friction disc 11, the first friction plate 12, and the second friction plate 13 are not easily damaged by friction and are not easily deformed due to high temperature after friction, thereby extending the service life of the friction disc 11, the first friction plate 12, and the second friction plate 13. The first friction plate 12 and the second friction plate 13 are arranged in a ring array on the friction disc 11. The ring array arrangement of the first friction plate 12 and the second friction plate 13 makes the friction and heating more uniform and also increases the aesthetics.

[0036] In addition, such as Figure 1 As shown, for the cover 2, a fixing bolt 32 that is threadedly connected to the flywheel 1 is inserted into its outer wall. An elastic washer 33 is provided between the fixing bolt 32 and the flywheel 1. By setting and rotating the fixing bolt 32, it is convenient to install and remove the cover 2, and thus it is easier to replace the first friction plate 12 and the second friction plate 13. By setting the elastic washer 33, not only is the pressure between the fixing bolt 32 and the flywheel 1 reduced, but the fixing bolt 32 is also prevented from loosening.

[0037] Furthermore, as a specific embodiment of the present invention, the present invention provides a friction-efficient clutch.

[0038] Specifically, such as Figure 1 and 2 As shown, two jackets 21 are installed on the outer wall of the cover 2. A cooling medium 22 is injected between the jacket 21 and the cover 2. A semiconductor cooling chip 23 is installed on the inner wall of the jacket 21. Multiple arc-shaped water pipes 24 are installed between the two jackets 21 and are connected to the inside of the jacket 21.

[0039] In this invention, by injecting a cooling medium 22 into the jacket 21, heat dissipation and cooling of the cover 2 are facilitated. By setting a semiconductor cooling chip 23, the cooling medium 22 is cooled, resulting in better heat dissipation and cooling of the cover 2, thereby extending the service life of the clutch. By setting multiple arc-shaped water pipes 24 in conjunction with the cooling medium 22, the passing airflow is cooled, thus reducing the temperature of the airflow entering the cover 2 through the filter 26 and improving the air cooling effect.

[0040] In addition, such as Figure 1 As shown, the jacket 21 has a threaded connection to a sealing plug 25 on its outer wall. The outer surface of the sealing plug 25 is integrally formed with a finger groove. By setting the sealing plug 25, it is convenient to replace the refrigerant 22 in the jacket 21, thereby ensuring the heat dissipation effect. By setting the finger groove, the friction between the hand and the sealing plug 25 is increased, making it convenient for the hand to rotate the sealing plug 25 and preventing the hand from slipping out.

[0041] Furthermore, as another specific embodiment of the present invention, the present invention provides a friction-efficient clutch.

[0042] Specifically, such as Figure 1 As shown, the outer wall of the cover 2 has two ventilation openings located between the two jackets 21. These openings facilitate air circulation within and outside the cover 2, thereby promoting heat dissipation from the friction disc 11, the first friction plate 12, and the second friction plate 13 inside the cover 2. The inner wall of each ventilation opening is equipped with a filter screen 26, which filters the air passing through the opening, thus providing a dustproof effect. This ensures a clean environment inside the cover 2 and prevents dust from affecting the service life of the friction disc 11, the first friction plate 12, and the second friction plate 13. Because dust has a complex composition, it sometimes provides acid radicals and metal ions that can lead to degradation. The small particle size of dust particles gives them a strong adsorption capacity, allowing them to adsorb harmful substances from the air onto their surfaces, resulting in an acidic environment. The alkaline environment causes the friction disc 11, the first friction plate 12, and the second friction plate 13 to become damp or even corrode. A frame 27 is installed on the inner wall of the vent. The inner wall of the frame 27 is slidably connected to the outer wall of the filter screen 26. A rod 28 is inserted into the outer wall of the frame 27. One end of the rod 28 abuts against the outer wall of the filter screen 26, and a fixing block 29 is installed at the other end of the rod 28. A tension spring 30 is sleeved on the outside of the rod 28. The two ends of the tension spring 30 are connected to the frame 27 and the fixing block 29, respectively. Pulling the fixing block 29 makes it easy to move the rod 28 away from the filter screen 26. The elastic reset principle of the tension spring 30 is used to facilitate the installation, disassembly, cleaning, and replacement of the filter screen 26, avoiding the impact on the ventilation and heat dissipation effect and dust prevention effect due to the limited dust holding capacity of the filter screen 26.

[0043] In addition, such as Figure 1 As shown, the outer wall of the fixing block 29 is equipped with a pull ring 31. The outer surface of the pull ring 31 is integrally formed with anti-slip particles. By setting the pull ring 31, it is convenient for people to pull the fixing block 29, thereby making the operation of installing, disassembling, cleaning and replacing the filter screen 26 more convenient and quick. By setting the anti-slip particles, the friction between the person's hand and the pull ring 31 is increased, thus avoiding the phenomenon of slipping out of the hand during the installation, disassembly, cleaning and replacement of the filter screen 26.

[0044] Working principle:

[0045] The tension formed by the positive and negative radial ratchet teeth 19 on opposite sides of two adjacent metal washers 18 is used to adjust the bolt 15 and the fixing nut 17. At the same time, the internal hexagonal groove 16 also has the effect of fixing the fixing nut 17, so that the fixing nut 17 can only move horizontally and cannot rotate. Since the inclination angle of the positive radial ratchet teeth 19 is greater than the thread pitch of the thread end of the adjusting bolt 15, a wedge effect will be generated at the thread head of the adjusting bolt 15, thereby fixing the adjusting bolt 15 and preventing loosening. Similarly, the fixing nut 17 has a better tightening effect on the adjusting bolt 15, thus forming multiple anti-loosening effects. Furthermore, by setting the radial serrations 20, the friction between the adjusting bolt 15 and the fixing nut 17 and the T-shaped groove 14 and the internal hexagonal groove 16 respectively is increased, making the anti-loosening effect even better. At the same time, it is easy to replace the first friction plate 12 and the second friction plate 13, ensuring the friction effect and making this clutch more efficient.

[0046] By setting two ventilation openings, the internal and external air circulation of the cover 2 is facilitated, which in turn facilitates heat dissipation of the friction disc 11, the first friction plate 12, and the second friction plate 13 inside the cover 2. By setting a filter screen 26, the air passing through the ventilation openings is filtered, thus having a dustproof effect. This ensures the inner wall environment of the cover 2 and avoids the problem of dust affecting the service life of the friction disc 11, the first friction plate 12, and the second friction plate 13. Pulling the fixing block 29 makes it easy to move the insertion rod 28 away from the filter screen 26. The elastic reset principle of the tension spring 30 is used to facilitate the installation, disassembly, cleaning, and replacement of the filter screen 26, thus avoiding the limited dust holding capacity of the filter screen 26 from affecting the ventilation and heat dissipation effect and the dustproof effect.

[0047] By injecting cooling medium 22 into the jacket 21, heat dissipation and cooling of the cover 2 are facilitated. The semiconductor cooling chip 23 is set to facilitate cooling of the cooling medium 22, which makes the heat dissipation and cooling effect of the cover 2 better, thereby extending the service life of the clutch. By setting multiple arc-shaped water pipes 24 in conjunction with the cooling medium 22, the airflow passing through is cooled down, thus reducing the temperature of the airflow entering the cover 2 through the filter screen 26, thereby improving the air cooling effect.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A frictional high-efficiency clutch, comprising a flywheel (1), one side of the flywheel (1) being provided with a cover (2), one side of the cover (2) being rotationally connected with an input shaft (3), one end of the input shaft (3) being connected with a friction disc (11); characterized in that, The front side and the rear side of the friction disc (11) are respectively provided with a plurality of first friction plates (12) and second friction plates (13), the side away from the friction disc (11) of the first friction plate (12) is provided with a T-shaped groove (14), the inner wall of the T-shaped groove (14) is rotationally connected with an adjusting bolt (15) inserted with the friction disc (11), the side away from the friction disc (11) of the second friction plate (13) is provided with an inner hexagonal groove (16), the inner wall of the inner hexagonal groove (16) is slidingly connected with a fixing nut (17), two metal gaskets (18) are attached between the T-shaped groove (14) and the adjusting bolt (15) and between the inner hexagonal groove (16) and the fixing nut (17), the side opposite to the adjacent two metal gaskets (18) is integrally formed with a radial ratchet (19), and the side away from the adjacent two metal gaskets (18) is integrally formed with a radial sawtooth (20). The outer wall of the cover body (2) is provided with two clamping sleeves (21), the clamping sleeve (21) and the cover body (2) are injected with a cold medium (22), the inner wall of the clamping sleeve (21) is provided with a semiconductor refrigeration chip (23), a plurality of arc-shaped water pipes (24) are arranged between the two clamping sleeves (21), and the arc-shaped water pipes (24) are in communication with the interiors of the clamping sleeves (21). The inner wall of the ventilation opening is provided with a filter screen (26). The inner wall of the ventilation opening is provided with a frame body (27), the inner wall of the frame body (27) is slidingly connected with the outer wall of the filter screen (26), the outer wall of the frame body (27) is inserted with a plug rod (28), one end of the plug rod (28) abuts against the outer wall of the filter screen (26), the other end of the plug rod (28) is provided with a fixing block (29), the outer wall of the plug rod (28) is sleeved with a tension spring (30), and the two ends of the tension spring (30) are connected with the frame body (27) and the fixing block (29) respectively.

2. A high efficiency friction clutch according to claim 1 wherein, The material of the friction disc (11), the first friction plate (12) and the second friction plate (13) is metal ceramic.

3. A high efficiency friction clutch according to claim 2, wherein The first friction plate (12) and the second friction plate (13) are arranged in an annular array on the friction disc (11).

4. A high efficiency friction clutch according to claim 3, wherein The outer wall of the clamping sleeve (21) is threadedly connected with a sealing plug (25), and the outer surface of the sealing plug (25) is integrally formed with a finger groove.

5. A high efficiency friction clutch as claimed in claim 4 wherein, The outer wall of the cover body (2) is inserted with a fixing bolt (32) threadedly connected with the flywheel (1), and an elastic gasket (33) is arranged between the fixing bolt (32) and the flywheel (1).

6. A high efficiency friction clutch as claimed in claim 5 wherein, The outer wall of the cover body (2) is provided with two ventilation openings, and the ventilation openings are located between the two clamping sleeves (21).

7. A high efficiency friction clutch according to claim 6 wherein, The outer wall of the fixing block (29) is provided with a pull ring (31), and the outer surface of the pull ring (31) is integrally formed with anti-skid particles.

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