A clutch that is easy to adjust

Abstract

The present invention relates to the technical field of clutches, and in particular to a clutch that is easy to adjust, comprising a clutch cover, a main pressure plate, and a secondary pressure plate. The upper end surface of the clutch cover is provided with a main release lever assembly for linkage control of the main pressure plate and a secondary release lever assembly for linkage control of the secondary pressure plate. The secondary release lever assembly and the main release lever assembly both include an adjustment bolt, and the adjustment bolt is provided with an adjustment nut. The adjustment nut includes a threaded adjustment head and an arc-shaped head that cooperates with the outside. The upper end surfaces of the secondary adjustment lever and the driven adjustment lever are both provided with an arc-shaped groove that cooperates with the arc-shaped head. The side walls of the arc-shaped head are circumferentially embedded with balls, and the balls abut against the inner wall of the arc-shaped groove. In the present invention, by arranging an adjustment nut above the clutch cover, the main pressure plate and the secondary driven plate assembly can be easily adjusted to compensate for the wear caused by use, and the upper position has sufficient space, which is convenient for setting a locking structure.

Description

Technical Field

[0001] The invention relates to the technical field of clutches, and in particular to a clutch which is easy to adjust. Background Art

[0002] The clutch is a device that has the function of engaging or disengaging when the driving and driven parts transmit power or motion on the same axis. It is usually installed between the engine and the transmission and is an assembly directly connected to the engine in the automobile transmission system.

[0003] The traditional double-acting clutch usually includes a main clutch structure and a sub-clutch structure, both of which include an adjusting bolt for adjusting the pressure plate. In the existing structure, an adjusting nut is provided at the bottom of the adjusting bolt, and the axial adjustment of the pressure plate is achieved through the cooperation of the adjusting bolt and the adjusting nut. However, since the adjusting nut is at the bottom and due to the effect of the overall clutch structure, the nut at the bottom will have certain interference due to spatial effects when adjusting, such as friction or collision with the clutch housing, pressure plate and other components. It may be difficult for the operator to reach it during adjustment, making the adjustment process difficult. In addition, due to space limitations and obstructed vision, it may be difficult for the operator to accurately judge the position and state of the adjusting nut, thereby affecting the adjustment accuracy.

[0004] In the prior art, the patent document with the authorization announcement number CN216407539U discloses a new structure double-acting clutch, including a clutch housing; a clutch housing, a main clutch and a slave clutch.

[0005] The centers of the moving plate assembly, the main clutch pressure plate, the disc spring, the auxiliary clutch pressure plate and the auxiliary clutch driven plate assembly coincide and fit in sequence, and the outer side of the auxiliary clutch driven plate assembly directly fits the engine flywheel. Among them, the adjustment screw runs through the threaded hole of the main clutch pressure plate, and an adjustment nut is provided between the nut of the adjustment screw and the main clutch pressure plate. Combined with the accompanying drawings, when operating the adjustment nut, the adjustment nut is at the bottom and is easily interfered by the housing, etc. The operator may need to adopt a more complicated posture or tools to make adjustments, which not only increases the difficulty of operation, but also may reduce the accuracy and efficiency of adjustment. Summary of the invention

[0006] The present invention provides a clutch which is easy to adjust, so as to solve the technical problem in the prior art that it is inconvenient to adjust the axial position of a pressure plate by adjusting bolts and adjusting nuts.

[0007] In order to solve the above problems, the present invention provides a clutch that is easy to adjust and adopts the following technical solution:

[0008] It includes a clutch cover, a main pressure plate, and an auxiliary pressure plate. A main driven plate assembly is arranged between the upper end surface of the clutch cover and the main pressure plate. A disc spring is arranged between the main pressure plate and the auxiliary pressure plate. A secondary driven plate assembly is arranged on the side of the auxiliary pressure plate away from the disc spring. A main release lever assembly for linkage control of the main pressure plate and an auxiliary release lever assembly for linkage control of the auxiliary pressure plate are arranged on the upper end surface of the clutch cover. Both the auxiliary release lever assembly and the main release lever assembly include adjustment bolts. The main release lever assembly also includes a main adjusting lever and a driven adjusting lever. The adjustment bolt on the main release lever assembly The bolt slides through one end of the driven adjusting lever and the bottom end is connected with the main pressure plate limit position. The secondary separation lever assembly also includes a secondary adjusting lever. The adjustment bolt on the secondary separation lever assembly slides through one end of the secondary adjusting lever and the bottom end is connected with the secondary pressure plate limit position. An adjusting nut is provided on the adjusting bolt, and the adjusting nut includes a threaded adjustment head and an arc-shaped head that cooperates with the outside. The upper end surfaces of the secondary adjusting lever and the driven adjusting lever are both provided with an arc-shaped groove that cooperates with the arc-shaped head. The side walls of the arc-shaped head are circumferentially embedded with balls, and the balls abut against the inner wall of the arc-shaped groove.

[0009] By adopting the above technical solution, by setting the adjusting nut above the clutch cover, the main pressure plate and the auxiliary driven plate assembly can be easily adjusted to compensate for the wear caused by use. This design avoids the spatial interference that may be encountered when operating at the bottom position, reduces the difficulty of operation and the error rate, and ensures the smooth progress of the adjustment process.

[0010] In addition, the bottom of the adjusting nut is in an arc-shaped fit, and the outer contact is a ball structure, which avoids the main clutch or the auxiliary clutch from being stuck due to excessive friction between the driven adjusting lever or the auxiliary adjusting lever and the adjusting nut when the main clutch or the auxiliary clutch is separated, ensuring smooth separation of the clutch. The ball structure can evenly distribute the contact stress, reducing the wear between the adjusting nut and the driven adjusting lever or the auxiliary adjusting lever.

[0011] Furthermore, the adjusting bolt is also provided with a locking piece that cooperates with the adjusting nut. The locking piece is connected to or disconnected from the adjusting nut by vertical movement to achieve locking or releasing of the adjusting nut on the adjusting bolt.

[0012] By adopting the above technical solution, the locking member can ensure the fixed position of the adjusting nut on the adjusting bolt to prevent loosening or displacement due to vibration or external force. In addition, during use, locking or unlocking can be achieved by a single-handed operation, that is, a vertical pressing operation, making the adjustment process simpler and faster.

[0013] Furthermore, the locking member includes a limiting sleeve and a connecting sleeve, the limiting sleeve is slidably mounted on the adjusting bolt and can only move vertically, and the connecting sleeve is used to connect with the threaded adjusting head.

[0014] Furthermore, an annular groove is formed on the side wall of the threaded adjustment head, a locking ring is fixedly provided in the annular groove and an unlocking ring is slidably provided below the locking ring, the outer wall diameter of the upper end of the locking ring is smaller than the outer wall diameter of the lower end and the side wall is arc-shaped, and the outer wall diameter of the upper end of the unlocking ring is larger than the outer wall diameter of the lower end and the side wall is an inclined surface.

[0015] The inner wall of the connecting sleeve is provided with a floating wedge block which cooperates with the locking ring and the unlocking ring.

[0016] The end of the wedge block away from the connecting sleeve is provided with limiting teeth, and the side wall of the threaded adjustment head is provided with a limiting keyway matched with the limiting teeth.

[0017] With the above technical solution, a locking ring is fixedly arranged in the annular groove formed on the side wall of the threaded adjustment head, and an unlocking ring is slidably arranged below the locking ring. This design enables the locking ring and the unlocking ring to work together, and realizes precise limiting and unlocking functions through the relative position change between them.

[0018] The inner wall of the connecting sleeve is provided with a floating wedge block which cooperates with the locking ring and the unlocking ring. The floating design enables the wedge block to automatically adjust its position according to the position change of the locking ring and the unlocking ring, thereby cooperating with the locking ring and the unlocking ring.

[0019] Furthermore, the upper end surface of the unlocking ring is provided with an annular protrusion, and the lower end surface of the locking ring is provided with an annular limiting groove corresponding to the annular protrusion.

[0020] Furthermore, a non-through action hole is provided on the inner wall of the connecting sleeve, an action pin is slidably provided in the action hole, and a spring is provided between the action pin and the bottom surface of the action hole.

[0021] Furthermore, the inner wall diameter of the limiting sleeve is smaller than the inner wall diameter of the connecting sleeve, the inner wall of the limiting sleeve is provided with a vertical limiting rib, and the outer wall of the adjusting bolt is provided with a limiting guide groove cooperating with the limiting rib.

[0022] Furthermore, a limiting hole is provided on the main pressure plate, and the bottom end of the adjusting bolt connected to the main pressure plate limiting cooperation extends into the limiting hole through an interference fit, and the adjusting bolt connected to the main pressure plate limiting cooperation is provided with a limiting pressure ring located between the clutch cover and the main pressure plate, and the adjusting bolt connected to the main pressure plate limiting cooperation is provided with a limiting ring located below the driven adjusting lever.

[0023] With the above technical solution, a limit hole is provided on the main pressure plate, and the bottom end of the adjustment bolt connected with the main pressure plate limit fit is inserted into the limit hole through interference fit. The interference fit method ensures a tight connection between the adjustment bolt and the main pressure plate, which is not easy to loosen, and is easy to cooperate to achieve the upper end adjustment method.

[0024] Furthermore, an adjusting bolt connected to the auxiliary pressure plate limit position is slidably passed through the auxiliary pressure plate and a limit cap is provided at the bottom end.

[0025] With the above technical solution, the adjusting bolt connected with the auxiliary pressure plate limiter slides through the auxiliary pressure plate, and a limit cap is provided at its bottom end. This structure allows the adjusting bolt to slide in the auxiliary pressure plate, while the limit cap limits the axial movement range of the adjusting bolt.

[0026] The beneficial effect of the present invention is that by arranging the adjusting nut above the clutch cover, the main pressure plate and the auxiliary driven plate assembly can be easily adjusted to compensate for the wear caused by use. This design avoids the spatial interference that may be encountered when operating at the bottom position, reduces the difficulty of operation and the error rate, and ensures the smooth progress of the adjustment process.

[0027] In addition, the bottom of the adjusting nut is in an arc-shaped fit, and the outer contact is a ball structure, which avoids the main clutch or the auxiliary clutch from being stuck due to excessive friction between the driven adjusting lever or the auxiliary adjusting lever and the adjusting nut when the main clutch or the auxiliary clutch is separated, ensuring smooth separation of the clutch. The ball structure can evenly distribute the contact stress, reducing the wear between the adjusting nut and the driven adjusting lever or the auxiliary adjusting lever.

[0028] The adjusting nut is located at the top, so that there is enough space on the adjusting bolt to cooperate with the locking piece. The locking piece can ensure the fixed position of the adjusting nut on the adjusting bolt to prevent loosening or displacement due to vibration or external force. In addition, during use, locking or unlocking can be achieved by one-handed operation, that is, vertical pressing operation, making the adjustment process simpler and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0030] Figure 1 It is a schematic structural diagram of a clutch that is easy to adjust according to the present invention;

[0031] Figure 2 A cross-sectional schematic diagram of a clutch that is easy to adjust according to the present invention;

[0032] Figure 3 for Figure 2 A partial enlarged view of the middle area A;

[0033] Figure 4 for Figure 2A partial enlarged view of the middle area B;

[0034] Figure 5 for Figure 2 A partial enlarged view of the middle area C;

[0035] Figure 6 This is one of the structural schematic diagrams of the adjusting nut in the present invention;

[0036] Figure 7 This is the second structural schematic diagram of the adjusting nut in the present invention;

[0037] Figure 8 This is one of the structural schematic diagrams of the locking member in the present invention;

[0038] Fig. 9 This is the second structural schematic diagram of the locking member in the present invention;

[0039] Fig.10 It is a partial structural sectional view of the adjusting bolt in the present invention.

[0040] Description of reference numerals:

[0041] 1. Clutch cover; 2. Main pressure plate; 201. Limiting hole; 21. Main and driven plate assembly; 22. Main release lever assembly; 221. Adjusting bolt; 2211. Limiting guide groove; 2212. Limiting pressure ring; 2213. Limiting ring; 2214. Limiting cap; 222. Main adjusting lever; 223. Driven adjusting lever; 2231. Arc groove; 23. Adjusting nut; 231. Threaded adjusting head; 2311. Annular groove; 2312. Lock Stop ring; 2313, unlocking ring; 2314, annular protrusion; 2315, annular limiting groove; 232, arc head; 2321, ball; 24, locking piece; 241, limiting sleeve; 2412, limiting rib; 242, connecting sleeve; 2421, wedge block; 2422, action hole; 2423, action pin; 3, auxiliary pressure plate; 31, auxiliary driven plate assembly; 32, auxiliary release lever assembly; 321, auxiliary adjusting lever; 4, disc spring. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0043] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0044] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0045] Embodiments of the clutch that is easy to adjust provided by the present invention:

[0046] like Figures 1 to 10 As shown, it includes a clutch cover 1, a main pressure plate 2, and an auxiliary pressure plate 3. A main driven plate assembly 21 is provided between the upper end surface of the clutch cover 1 and the main pressure plate 2, a disc spring 4 is provided between the main pressure plate 2 and the auxiliary pressure plate 3, and an auxiliary driven plate assembly 31 is provided on the side of the auxiliary pressure plate 3 away from the disc spring 4. The upper end surface of the clutch cover 1 is provided with a main release lever assembly 22 for linkage control of the main pressure plate 2 and an auxiliary release lever assembly 32 for linkage control of the auxiliary pressure plate 3.

[0047] When the main clutch is disengaged, the main release bearing is operated to push the head of the main adjusting lever 222 downward, and then the head of the driven adjusting lever 223 is driven to move upward and the tail is pressed downward. When the tail is pressed downward, the free clearance of the main clutch is first eliminated, and then the adjusting bolt 221 connected to the main pressure plate 2 is driven to move downward through the action of the limit ring 2213, and the main pressure plate 2 is pushed downward to overcome the force of the disc spring 4, thereby releasing the clamping force on the main driven plate assembly 21, interrupting the power transmission, and realizing the separation of the main clutch; when the auxiliary clutch is operated to be separated, the head of the auxiliary adjusting lever 321 is pushed downward by the auxiliary release bearing, and the other end of the auxiliary adjusting lever 321 moves upward and drives the auxiliary pressure plate 3 to overcome the force of the disc spring 4, thereby releasing the clamping force on the auxiliary driven plate assembly 31, so that a gap is generated between the auxiliary driven plate assembly 31 and the flywheel, thereby realizing the separation of the auxiliary clutch.

[0048] Both the secondary release lever assembly 32 and the primary release lever assembly 22 include an adjusting bolt 221 .

[0049] The main release lever assembly 22 also includes a main adjustment lever 222 and a driven adjustment lever 223. The adjustment bolt 221 on the main release lever assembly 22 slides through one end of the driven adjustment lever 223 and the bottom end is connected with the main pressure plate 2 in a limited position.

[0050] In this embodiment, a limiting hole 201 is provided on the main pressure plate 2, and the bottom end of the adjusting bolt 221 connected to the main pressure plate 2 in a limiting manner extends into the limiting hole 201 through an interference fit, and the adjusting bolt 221 connected to the main pressure plate 2 in a limiting manner is provided with a limiting pressure ring 2212 located between the clutch cover 1 and the main pressure plate 2, and the adjusting bolt 221 connected to the main pressure plate 2 in a limiting manner is provided with a limiting ring 2213 located below the driven adjusting lever 223.

[0051] Specifically, the corresponding adjusting bolt 221 is fixedly connected to the main pressure plate 2 through interference fit, so that when the adjusting bolt 221 moves, it can drive the main pressure plate 2 to adjust the axis.

[0052] The auxiliary separation lever assembly 32 further includes an auxiliary adjustment lever 321 . The adjustment bolt 221 on the auxiliary separation lever assembly 32 slides through one end of the auxiliary adjustment lever 321 and the bottom end is connected with the auxiliary pressure plate 3 in a limiting matching manner.

[0053] Specifically, the adjusting bolt 221 connected with the auxiliary pressure plate 3 in a limited position is slidably penetrated through the auxiliary pressure plate 3 and a limiting cap 2214 is provided at the bottom end thereof, so as to facilitate the axial adjustment of the auxiliary pressure plate 3 driven by the corresponding adjusting bolt 221.

[0054] An adjusting nut 23 is provided on the adjusting bolt 221, and the adjusting nut 23 includes a threaded adjusting head 231 and an arc-shaped head 232 that abuts against the outside. The upper end surfaces of the auxiliary adjusting lever 321 and the driven adjusting lever 223 are provided with an arc-shaped groove 2231 that cooperates with the arc-shaped head 232. Balls 2321 are circumferentially embedded in the side walls of the arc-shaped head 232, and the balls 2321 abut against the inner wall of the arc-shaped groove 2231.

[0055] The arc structure cooperates with the ball 2321 structure to replace the hinge structure in the prior art, thereby avoiding friction and jamming caused by directly moving the bolt upward.

[0056] In this embodiment, a locking member 24 cooperating with the adjusting nut 23 is further provided on the adjusting bolt 221 . The locking member 24 is connected to or disconnected from the adjusting nut 23 by vertical movement, thereby locking or releasing the adjusting nut 23 on the adjusting bolt 221 .

[0057] The locking member 24 includes a limiting sleeve 241 and a connecting sleeve 242. The limiting sleeve 241 is slidably mounted on the adjusting bolt 221 and can only move vertically. Specifically, the inner wall diameter of the limiting sleeve 241 is smaller than the inner wall diameter of the connecting sleeve 242. The inner wall of the limiting sleeve 241 is provided with a vertical limiting rib 2412. The outer wall of the adjusting bolt 221 is provided with a limiting guide groove 2211 that cooperates with the limiting rib 2412.

[0058] The connecting sleeve 242 is used to connect with the threaded adjustment head 231. The side wall of the threaded adjustment head 231 is formed with an annular groove 2311, a locking ring 2312 is fixedly arranged in the annular groove 2311, and an unlocking ring 2313 is slidably arranged below the locking ring 2312. The outer wall diameter of the upper end of the locking ring 2312 is smaller than the outer wall diameter of the lower end and the side wall is arc-shaped, and the outer wall diameter of the upper end of the unlocking ring 2313 is larger than the outer wall diameter of the lower end and the side wall is an inclined surface.

[0059] In addition, the diameter of the lower outer wall of the locking ring 2312 is equal to the diameter of the upper outer wall of the unlocking ring 2313.

[0060] The upper end surface of the unlocking ring 2313 is provided with an annular protrusion 2314 , and the lower end surface of the locking ring 2312 is provided with an annular limiting groove 2315 corresponding to the annular protrusion 2314 .

[0061] The inner wall of the connecting sleeve 242 is provided with a floating wedge block 2421 that cooperates with the locking ring 2312 and the unlocking ring 2313. Specifically, the inner wall of the connecting sleeve 242 is provided with a non-through action hole 2422, and an action pin 2423 is slidably provided in the action hole 2422, and a spring is provided between the action pin 2423 and the bottom surface of the action hole 2422.

[0062] In this embodiment, the end of the wedge block 2421 away from the connecting sleeve 242 is provided with a limiting tooth, and the side wall of the threaded adjusting head 231 is provided with a limiting keyway that cooperates with the limiting tooth, so that the adjusting nut 23 and the locking member 24 cannot rotate relative to each other.

[0063] The clutch of this embodiment is easy to adjust. When it is used in practice, when the main clutch is disengaged, the main release bearing is operated to push the head of the main adjusting lever 222 downward, and then the head of the driven adjusting lever 223 is driven to move upward and the tail is pressed downward. When the tail is pressed downward, the free clearance of the main clutch is first eliminated, and then the adjusting bolt 221 connected with the main pressure plate 2 is driven to move downward through the action of the limit ring 2213, and the main pressure plate 2 is pushed downward to overcome the force of the disc spring 4, thereby releasing the clamping force on the main and driven plate assembly 21, and the power transmission is interrupted to realize the separation of the main clutch; when the auxiliary clutch is operated to be separated, the head of the auxiliary adjusting lever 321 is pushed downward by the auxiliary release bearing, and the other end of the auxiliary adjusting lever 321 moves upward and drives the auxiliary pressure plate 3 to overcome the force of the disc spring 4, thereby releasing the clamping force on the auxiliary driven plate assembly 31, so that a gap is generated between the auxiliary driven plate assembly 31 and the flywheel, thereby realizing the separation of the auxiliary clutch.

[0064] Regarding the main clutch, in the specific use process, under normal conditions, the adjusting bolt 221 connected to the main pressure plate 2 with limited fit, the bottom end of the adjusting nut 23 on it abuts against the upper end surface of the driven adjusting lever 223, that is, to avoid large contact friction under normal conditions. After a period of use, the friction plate constituting the main driven plate assembly 21 will wear out. At this time, it is necessary to adjust the adjusting nut 23 on the adjusting bolt 221 corresponding to the main pressure plate 2, specifically, to make the corresponding adjusting nut 23 move downward relative to the adjusting bolt 221, and the adjusting bolt 221 move upward relatively, and then drive the main pressure plate 2 to move upward relatively, and compensate for this wear by adjusting the main pressure plate 2 in the axial direction to maintain the normal operation of the clutch.

[0065] Similarly, regarding the secondary clutch, under normal conditions, the bottom end of the adjusting nut 23 on the adjusting bolt 221 corresponding to the secondary pressure plate 3 contacts the upper end surface of the secondary adjusting lever 321. After a period of use, the secondary driven plate assembly 31 is worn, and this wear will cause the working performance of the clutch to decline, and adjustment is required. The corresponding adjusting bolt 221 needs to be adjusted to make the secondary driven plate assembly 31 move toward the direction close to the flywheel. Specifically, the adjusting nut 23 on the corresponding adjusting bolt 221 is relatively moved upward, and finally the secondary driven plate assembly 31 is relatively moved downward. The secondary driven plate assembly 31 moves downward toward the direction close to the flywheel, thereby compensating for the wear of the secondary driven plate assembly 31.

[0066] Among them, whether it is the adjustment of the main pressure plate 2 or the position adjustment of the auxiliary driven plate assembly 31, the operation is to act on the adjustment nut 23 located above the clutch cover 1. The operation is simple and quick, avoiding the space interference when operating at the bottom position, and reducing the difficulty and error of operation caused by space limitation, which helps to ensure the smooth progress of the adjustment process.

[0067] In addition, the adjusting bolt 221 is provided with a locking piece 24 that cooperates with the adjusting nut 23. The locking piece 24 realizes the bidirectional locking of the adjusting nut 23, prevents it from loosening due to vibration or external force during operation, and improves the safety of the clutch that is easy to adjust.

[0068] Under normal conditions, the adjusting nut 23 and the locking piece 24 are in a connected state, and the limiting effect of the relative rotation between the limiting sleeve 241 and the adjusting bolt 221, as well as the limiting effect between the limiting sleeve 241 and the adjusting nut 23, is finally achieved, thereby limiting the nut 23 and the adjusting bolt 221.

[0069] When adjustment is required, it is necessary to disengage the adjustment nut 23 and the locking piece 24. The specific operation is to press the locking piece 24 downward so that the wedge block 2421 between the locking ring 2312 and the unlocking ring 2313 moves down to the bottom of the unlocking ring 2313, and then move the locking piece 24 upward so that the wedge block 2421 drives the unlocking ring 2313 to move up together. When the unlocking ring 2313 contacts the locking ring 2312, the wedge block 2421 floats to the side close to the inner wall of the connecting sleeve 242 due to the large diameter of the upper end surface of the unlocking ring 2313. During the upward movement, the wedge block 2421 naturally moves to the outside of the locking ring 2312, and then disengages from the limit between the locking ring 2312.

[0070] After adjustment, when locking is required, move the locking piece 24 downward, and the wedge block 2421 gradually compresses the spring due to the arc surface of the side wall of the locking ring 2312. When it moves to the bottom of the locking ring 2312, the spring is reset, and the wedge block 2421 presses against the side wall of the threaded adjustment head 231, and realizes the cooperation of the limiting teeth and the limiting keyway, so that the adjusting nut 23 and the locking piece 24 cannot rotate relative to each other, that is, the position locking of the adjusting nut 23 is achieved.

[0071] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0072] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A clutch that is easy to adjust, comprising a clutch cover (1), a main pressure plate (2), and an auxiliary pressure plate (3); a main driven plate assembly (21) is provided between the upper end surface of the clutch cover (1) and the main pressure plate (2); a disc spring (4) is provided between the main pressure plate (2) and the auxiliary pressure plate (3); a side of the auxiliary pressure plate (3) away from the disc spring (4) is provided with an auxiliary driven plate assembly (31); the upper end surface of the clutch cover (1) is provided with a main release lever assembly (22) for linkage control of the main pressure plate (2) and an auxiliary release lever assembly (32) for linkage control of the auxiliary pressure plate (3); the auxiliary release lever assembly (32) and the main release lever assembly (22) both include an adjustment bolt (221), characterized in that: The main separation lever assembly (22) further comprises a main adjustment lever (222) and a driven adjustment lever (223), the adjustment bolt (221) on the main separation lever assembly (22) slidingly passes through one end of the driven adjustment lever (223) and the bottom end is connected to the main pressure plate (2) in a limiting position, and the auxiliary separation lever assembly (32) further comprises an auxiliary adjustment lever (321), the adjustment bolt (221) on the auxiliary separation lever assembly (32) slidingly passes through one end of the auxiliary adjustment lever (321) and the bottom end is connected to the auxiliary pressure plate (3) in a limiting position. The adjusting bolt (221) is connected in a position-matching manner, and an adjusting nut (23) is provided on the adjusting bolt (221). The adjusting nut (23) comprises a threaded adjusting head (231) and an arc-shaped head (232) that is matched and abutted against the outside. The upper end surfaces of the auxiliary adjusting lever (321) and the driven adjusting lever (223) are both provided with an arc-shaped groove (2231) that matches the arc-shaped head (232). A ball (2321) is embedded in the circumferential direction of the side wall of the arc-shaped head (232), and the ball (2321) abuts against the inner wall of the arc-shaped groove (2231).

2. The easily adjustable clutch according to claim 1, characterized in that: The adjusting bolt (221) is also provided with a locking piece (24) that cooperates with the adjusting nut (23); the locking piece (24) is connected to or disconnected from the adjusting nut (23) by vertical movement, thereby locking or releasing the adjusting nut (23) on the adjusting bolt (221).

3. The easily adjustable clutch according to claim 2, characterized in that: The locking member (24) comprises a limiting sleeve (241) and a connecting sleeve (242); the limiting sleeve (241) is slidably mounted on the adjusting bolt (221) and can only move vertically; and the connecting sleeve (242) is used to connect to the threaded adjusting head (231).

4. The easily adjustable clutch according to claim 3, characterized in that: An annular groove (2311) is formed on the side wall of the threaded adjustment head (231), a locking ring (2312) is fixedly arranged in the annular groove (2311), and an unlocking ring (2313) is slidably arranged below the locking ring (2312), the outer wall diameter of the upper end of the locking ring (2312) is smaller than the outer wall diameter of the lower end, and the side wall is in an arc shape, and the outer wall diameter of the upper end of the unlocking ring (2313) is larger than the outer wall diameter of the lower end, and the side wall is an inclined surface; The inner wall of the connecting sleeve (242) is provided with a floating wedge block (2421) that cooperates with the locking ring (2312) and the unlocking ring (2313); One end of the wedge block (2421) away from the connecting sleeve (242) is provided with a limiting tooth, and the side wall of the threaded adjustment head (231) is provided with a limiting key groove that cooperates with the limiting tooth.

5. The easily adjustable clutch according to claim 4, characterized in that: The upper end surface of the unlocking ring (2313) is provided with an annular protrusion (2314), and the lower end surface of the locking ring (2312) is provided with an annular limiting groove (2315) corresponding to the annular protrusion (2314).

6. The easily adjustable clutch according to claim 4, characterized in that: The inner wall of the connecting sleeve (242) is provided with a non-through action hole (2422), an action pin (2423) is slidably provided in the action hole (2422), and a spring is provided between the action pin (2423) and the bottom surface of the action hole (2422).

7. The easily adjustable clutch according to claim 3, characterized in that: The inner wall diameter of the limiting sleeve (241) is smaller than the inner wall diameter of the connecting sleeve (242); the inner wall of the limiting sleeve (241) is provided with a vertical limiting convex rib (2412); and the outer wall of the adjusting bolt (221) is provided with a limiting guide groove (2211) that cooperates with the limiting convex rib (2412).

8. The easily adjustable clutch according to claim 1, characterized in that: The main pressure plate (2) is provided with a limiting hole (201), and the bottom end of an adjusting bolt (221) connected to the main pressure plate (2) in a limiting manner extends into the limiting hole (201) through an interference fit, and the adjusting bolt (221) connected to the main pressure plate (2) in a limiting manner is provided with a limiting pressure ring (2212) located between the clutch cover (1) and the main pressure plate (2), and the adjusting bolt (221) connected to the main pressure plate (2) in a limiting manner is provided with a limiting ring (2213) located below the driven adjustment lever (223).

9. The easily adjustable clutch according to claim 1, characterized in that: An adjusting bolt (221) connected to the auxiliary pressure plate (3) in a limiting manner slides through the auxiliary pressure plate (3) and is provided with a limiting cap (2214) at the bottom end.

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