A clutch control structure with adjustable disengagement travel

Abstract

The utility model discloses a clutch control structure of adjustable separation stroke, including separation lever, operating mechanism and adjusting mechanism. The separation lever one end is equipped with contact part, and the other end is hinged with operating mechanism. Adjusting mechanism includes fixed base, adjusting screw rod and lock nut, and the relative position of separation lever and operating mechanism is changed through the rotation adjusting screw rod, realizes the adjustment of separation stroke. Fixed base is equipped with guide groove, and it is convenient to adjust the installation position initially. Adjusting screw rod and connecting piece are connected through ball head, and adapt to the swing of separation lever. The lock nut is double nut structure, and the loosening effect is enhanced. The fixed base is embedded with self -lubricating bushing, and the friction resistance is reduced. The separation lever contact part is equipped with wear -resisting pad piece, and the durability is improved. Operating rod is equipped with dust cover, and prevents the impurity from entering. The end of adjusting screw rod is equipped with polygonal operation head, and it is convenient to tool cooperation.

Description

Technical Field

[0001] This utility model relates to the field of clutch technology, and in particular to a clutch control structure with adjustable disengagement stroke. Background Technology

[0002] The clutch control structure is a key component in a mechanical transmission system, used to connect and disconnect power. Existing clutch control structures typically employ a fixed-stroke design, where the relative position between the release lever and the operating mechanism is not adjustable. This fixed-stroke design leads to incomplete disengagement or unstable engagement of the clutch after prolonged use due to friction plate wear. Furthermore, the fixed-stroke structure cannot accommodate the thickness differences of clutch plates from different models, reducing product versatility and assembly efficiency. Therefore, existing clutch control structures suffer from technical problems such as inconvenient adjustment, poor adaptability, and high maintenance costs. Utility Model Content

[0003] The purpose of this utility model is to provide a clutch control structure with adjustable separation stroke, which solves the problems mentioned in the background art.

[0004] This invention is achieved through a clutch control structure with an adjustable separation stroke.

[0005] The system includes a release lever, an operating mechanism, and an adjusting mechanism. One end of the release lever has a contact portion for contacting the clutch pressure plate. The operating mechanism includes an operating lever and a connecting piece hinged to the other end of the release lever. The adjusting mechanism is located between the release lever and the operating mechanism to change their relative positions. The adjusting mechanism includes a fixed seat, an adjusting screw, and a locking nut. The fixed seat is fixed to the lever body. The fixed seat has a threaded through hole penetrating its body. One end of the adjusting screw is rotatably connected to the connecting piece of the operating mechanism. The adjusting screw body passes through the threaded through hole of the fixed seat and is threadedly engaged with it. The locking nut is fitted onto the adjusting screw and is threadedly engaged with it. The end face of the locking nut abuts against the corresponding end face of the fixed seat.

[0006] By rotating the adjusting screw, the screw undergoes axial displacement relative to the fixed seat, thereby moving the connecting part of the operating mechanism relative to the release lever. This changes the relative position between the release lever and the operating mechanism, thus adjusting the clutch disengagement stroke. After adjustment, tighten the locking nut so that its end face presses firmly against the end face of the fixed seat, generating friction to lock the relative position of the adjusting screw and the fixed seat, preventing accidental rotation of the adjusting screw during clutch operation.

[0007] As a further improvement, the release lever has a guide groove extending along its length. The fixing seat includes a base and clamping arms located on both sides of the base. The two clamping arms are located on both sides of the release lever. The clamping arms have mounting holes corresponding to the guide groove. Fastening bolts pass through the mounting holes and guide grooves to fasten the fixing seat to the release lever. By moving the fixing seat along the guide groove and fastening it, the installation position of the adjusting mechanism on the release lever can be initially adjusted to adapt to different specifications of clutch assemblies. As a further improvement, the rotating connection structure between the adjusting screw and the connecting member includes a ball head seat and a ball head rod. The ball head seat is fixed to the connecting member. One end of the ball head rod has a ball head, which is received in the ball head seat and forms a spherical fit. The other end of the ball head rod has a connecting part that connects to the adjusting screw. The connecting part has an internal threaded hole. The end of the adjusting screw has an external threaded section. The external threaded section is screwed into the internal threaded hole to achieve a fixed connection between the ball head rod and the adjusting screw. The spherical fit between the ball head and the ball head seat allows the adjusting screw and the connecting part to deflect at a certain angle, adapting to the swing of the release lever during clutch operation.

[0008] As a further improvement, the locking nut has a double-nut structure, including a first locking nut and a second locking nut. The first and second locking nuts are sequentially fitted onto the adjusting screw. The end face of the first locking nut abuts against the end face of the fixing seat. The end face of the second locking nut abuts against the end face of the first locking nut. Tightening the second locking nut further tightens the first locking nut, enhancing the anti-loosening effect. As a further improvement, a self-lubricating bushing is embedded in the threaded through hole of the fixing seat. The inner hole of the self-lubricating bushing has an internal thread that mates with the adjusting screw. The self-lubricating bushing is made of a self-lubricating material, reducing the frictional resistance when the adjusting screw rotates, making the adjustment operation smoother and easier.

[0009] As a further improvement, the contact portion of the release lever is equipped with a wear-resistant pad. The wear-resistant pad is fixedly installed to the end of the release lever by fasteners. The wear-resistant pad is made of a high-hardness, wear-resistant material, improving the durability of contact with the clutch pressure plate.

[0010] As a further improvement, a dust cover is provided on the joystick. The dust cover is fitted over the connection between the joystick and the connector. The dust cover is made of flexible material to prevent dust and impurities from entering the mating interface between the ball joint and the ball joint.

[0011] As a further improvement, the end of the adjusting screw is provided with an operating head. The outer periphery of the operating head has a polygonal structure, which facilitates the use of a wrench or socket tool to rotate the adjusting screw.

[0012] This invention relates to an adjustable disengagement stroke clutch control structure. Through an adjustment mechanism consisting of a fixed base, an adjusting screw, and a locking nut, it achieves precise and convenient adjustment of the relative position between the disengagement lever and the operating mechanism. This structure effectively compensates for the wear of the clutch friction plates, ensuring the clutch always has a suitable disengagement stroke, thereby guaranteeing complete disengagement and smooth engagement. Simultaneously, the adjustment mechanism allows for adaptation to clutch plates of different thicknesses, significantly improving the versatility and assembly efficiency of the clutch control structure. Its double-nut anti-loosening structure, self-lubricating bushing, and ball joint connection design further enhance the reliability of adjustment, ease of operation, and adaptability to working conditions, reducing maintenance requirements and operating costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] Explanation of reference numerals in the attached figures:

[0016] 1. Separating lever; 2. Contact part; 3. Operating lever; 4. Connecting part; 5. Fixing base; 6. Adjusting screw; 7. Locking nut; 8. Guide groove; 9. Base; 10. Clamping arm; 11. Mounting hole; 12. Fastening bolt; 13. Ball head seat; 14. Ball head rod; 15. Ball head; 16. Connecting part; 17. Internal threaded hole; 18. External threaded section; 19. First locking nut; 20. Second locking nut; 21. Self-lubricating bushing; 22. Wear-resistant pad; 23. Dust cover. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1 to 2 This utility model provides a clutch control structure with adjustable separation stroke. Its core lies in achieving precise and stable adjustment of the clutch separation stroke through a cleverly designed mechanical structure, so as to adapt to the wear of clutch friction plates, the difference in thickness of different models of clutch plates, and other changes in working conditions.

[0019] like Figure 1As shown, the adjustable clutch control structure of this utility model mainly includes a release lever 1, an operating mechanism, and an adjusting mechanism. These main components work together through specific connection methods and spatial relationships to jointly complete the control and adjustment of the clutch release stroke.

[0020] Specifically, the release lever 1 has a slender rod-like structure, typically forged or precision cast from high-strength alloy steel to ensure its structural stability and fatigue life under long-term stress conditions. The overall length of the release lever 1 is designed to be L1, its cross-section is rectangular, its width is W1, and its thickness is T1. One end of the release lever 1 is provided with a contact portion 2 for contacting the clutch pressure plate. The contact portion 2 is located at the far end of the release lever 1, and its surface is finely machined to form an arc-shaped structure to ensure uniform contact area with the clutch pressure plate and effective transmission of separation force. To enhance the wear resistance of the contact portion 2, a wear-resistant pad 22 is installed on the contact portion 2. The wear-resistant pad 22 is a flat cuboid structure, precision sintered or molded from high-hardness ceramic material or polymer composite material (such as carbon fiber reinforced polymer), and its hardness is significantly higher than that of the release lever 1 body material. The wear-resistant pad 22 is secured by two countersunk screws or rivets 12, which pass through pre-drilled mounting holes on the pad 22 and are screwed or riveted into the corresponding pre-drilled holes in the contact portion 2 of the release lever 1. This secures the pad 22 and prevents it from falling off or shifting under high-speed friction and high pressure. The length of the wear-resistant pad 22 is slightly less than the width of the contact portion 2 of the release lever 1, and its thickness is T2. It protrudes from the end face of the release lever 1 by approximately H1, providing an effective wear buffer layer.

[0021] A guide groove 8 extends along the length of the middle section of the release lever 1. The guide groove 8 is an elongated groove with a length of L2, a width of W2, and a depth of D1. The inner surface of the guide groove 8 is precision-machined to ensure a smooth surface, and its two edges transition to the bottom of the groove at right angles or with a slight arc, guiding and defining the installation position of the fixing seat 5. The guide groove 8 not only provides a convenient initial adjustment range for the installation of the fixing seat 5 but also enhances the rigidity of local areas of the release lever 1 through its structural form, preventing stress concentration. The guide groove 8 allows the fixing seat 5 to slide within a certain range along the length of the release lever 1, thereby achieving a rough adjustment of the installation position to adapt to different installation spaces and the geometry of the clutch assembly.

[0022] The operating mechanism includes a control lever 3 and a connecting member 4 hinged to the other end of the release lever 1. The control lever 3 is typically a solid or hollow cylindrical rod made of medium carbon steel, possessing sufficient strength and rigidity to withstand the axial thrust generated during clutch operation. One end of the control lever 3 is connected to the vehicle's clutch pedal mechanism or a hydraulic / pneumatic actuator (not shown), while the other end is ball-jointed to the connecting member 4 via a ball joint seat 13. The control lever 3 has a diameter of D3 and an effective working stroke of S1.

[0023] The connecting member 4 is an irregularly shaped metal component made of high-strength alloy steel, cast or forged. One end has a pin hole, through which a high-strength pin (not shown) passes between the pin hole of the connecting member 4 and the corresponding pin hole of the release lever 1, achieving a hinge connection between the connecting member 4 and the release lever 1. This hinge structure allows the connecting member 4 to rotate slightly relative to the release lever 1 around the pin, thus accommodating the oscillation during clutch disengagement. The other end of the connecting member 4, i.e., the end connected to the operating lever 3, is integrally formed or installed with a ball head seat 13 via welding or bolt connection. The ball head seat 13 has a hemispherical groove structure, and its inner surface is finely ground to form a smooth spherical mating surface for accommodating the ball head 15 on the ball head rod 14.

[0024] The adjusting mechanism is located between the separating lever 1 and the operating mechanism, and is used to change the relative position of the separating lever 1 and the operating mechanism. It is the core component of this invention to achieve adjustable separation stroke. The adjusting mechanism includes a fixed base 5, an adjusting screw 6, and a locking nut 7.

[0025] The fixing seat 5 is fixed to the rod of the separating lever 1. The fixing seat 5 consists of a base 9 and two clamping arms 10 located on both sides of the base 9. The base 9 has a rectangular plate structure, and its lower surface is in close contact with the upper surface of the separating lever 1. The base 9 has a length of L3, a width of W3, and a thickness of T3. The two clamping arms 10 are located on both sides of the base 9, extending upward perpendicularly to the base 9 and arranged in parallel to form a U-shaped clamping structure, which can accurately clamp the rod of the separating lever 1. Each clamping arm 10 has a length of H2 and a thickness of T4. The fixing seat 5 is made of high-strength carbon steel by precision casting or milling to ensure its sufficient strength and good connection with the separating lever 1.

[0026] The base 9 of the fixed seat 5 has a threaded through hole penetrating its body. The inner wall size and thread parameters of the threaded through hole match the external thread section of the adjusting screw 6. To reduce the frictional resistance when the adjusting screw 6 rotates and improve the smoothness of operation, a self-lubricating bushing 21 is embedded in the threaded through hole. The self-lubricating bushing 21 is a cylindrical structure, and its outer wall forms a tight press fit with the inner wall of the threaded through hole of the fixed seat 5, or it is fixed by threaded connection. The inner hole of the self-lubricating bushing 21 has an internal thread that mates with the adjusting screw 6, and the pitch of the internal thread is the same as the pitch of the external thread of the adjusting screw 6. The self-lubricating bushing 21 is made of high-performance self-lubricating materials, such as polytetrafluoroethylene (PTFE), oil-impregnated nylon, or graphite-reinforced polyamide composite materials. These materials have extremely low coefficients of friction and excellent wear resistance, resulting in minimal resistance when the adjusting screw 6 rotates within them, making the operation smoother and less strenuous, and extending the service life of the components. The self-lubricating bushing 21 has a length of L4, an inner diameter of D4, and an outer diameter of D5.

[0027] The clamping arm 10 is provided with mounting holes 11 corresponding to the guide groove 8. Each clamping arm 10 has two circular or elliptical mounting holes 11 with a diameter of D6 and a spacing of L5. These mounting holes 11 are precisely aligned with the guide groove 8 on the release lever 1. The fastening bolt 12 passes through the mounting holes 11 and further through the guide groove 8. The fastening bolt 12 is an M6 or M8 countersunk head hexagonal bolt made of 8.8 or 10.9 grade high-strength alloy steel, and its length is matched according to the clamping thickness of the fixing seat 5 and the thickness of the release lever 1. After the fastening bolt 12 passes through the guide groove 8, it is tightened by using washers (e.g., flat washers and spring washers) and high-strength nuts (not shown) underneath it to securely fasten the fixing seat 5 to the release lever 1. By moving the fixed seat 5 along the guide groove 8 and selecting a suitable fastening position, and then tightening the fastening bolt 12, the installation position of the adjustment mechanism on the release lever 1 can be initially adjusted to adapt to the installation space and structural characteristics of different specifications of clutch assemblies, so as to achieve universality of installation.

[0028] The adjusting screw 6 is a precision-machined rod with external threads. It is made of high-strength alloy steel (such as 40Cr or 35CrMo) that has undergone quenching and tempering treatment followed by precision grinding to ensure its surface hardness and thread accuracy. The overall length of the adjusting screw 6 is L6, the diameter of its threaded section is D7, and the pitch is P1. The rod of the adjusting screw 6 passes through the threaded through hole of the fixed seat 5 and forms a threaded engagement with the self-lubricating bushing 21 inside the threaded through hole.

[0029] One end of the adjusting screw 6 is rotatably connected to the connecting member 4 of the operating mechanism. Specifically, this rotatable connection structure includes a ball head seat 13 and a ball head rod 14. As described above, the ball head seat 13 is fixed to the connecting member 4, and its interior forms a smooth spherical groove. The ball head rod 14 is a short rod-shaped structure made of alloy steel similar to that of the adjusting screw 6. One end of the ball head rod 14 is provided with a ball head 15, which is a standard sphere with a diameter that matches the spherical groove of the ball head seat 13. The ball head 15 is accommodated within the ball head seat 13, forming a spherical fit. This fit allows the ball head rod 14 to deflect and rotate unimpeded relative to the ball head seat 13 within a certain angular range, thereby effectively adapting to the oscillation of the release lever 1 during clutch operation and the angular changes between the connecting member 4 and the operating lever 3. This avoids stress concentration and jamming that may be caused by rigid connections, enhancing the flexibility and adaptability of the entire control structure. There is usually a small gap between the ball head 15 and the ball head seat 13, or it is pre-tightened by an elastic washer to eliminate looseness and ensure smooth movement.

[0030] The other end of the ball joint 14 is provided with a connecting portion 16. The connecting portion 16 is the cylindrical end of the ball joint 14, and its interior has an internal threaded hole 17. The thread parameters (diameter D8, pitch P2) of the internal threaded hole 17 are precisely matched with the external threaded section 18 at the end of the adjusting screw 6. The end of the adjusting screw 6 is provided with an external threaded section 18. The external threaded section 18 is screwed into the internal threaded hole 17 of the connecting portion 16 of the ball joint 14, thereby achieving a fixed connection between the ball joint 14 and the adjusting screw 6. This threaded connection method forms a detachable and robust whole between the adjusting screw 6 and the ball joint 14, ensuring the reliability of force transmission.

[0031] The other end of the adjusting screw 6 is provided with an operating head. The operating head is integrally formed or connected to the end of the adjusting screw 6 by welding or press-fitting, and has a polygonal structure, such as a standard hexagon or quadrilateral. The operating head has a side-to-side dimension of S2, facilitating its use with standard wrenches, open-end wrenches, or socket tools (not shown), thereby allowing convenient rotation of the adjusting screw 6 to adjust the clutch stroke. The operating head significantly improves the convenience and efficiency of the adjustment process.

[0032] The locking nut 7 is fitted onto the adjusting screw 6 and forms a threaded engagement with it. In this embodiment, the locking nut 7 has a double-nut structure to further enhance the anti-loosening effect and the reliability of adjustment. The double-nut structure includes a first locking nut 19 and a second locking nut 20. Both the first locking nut 19 and the second locking nut 20 are standard-sized hexagonal nuts made of high-strength steel, and their internal threads precisely match the external threads of the adjusting screw 6. The first locking nut 19 and the second locking nut 20 are sequentially fitted onto the adjusting screw 6, located on one side of the fixing base 5.

[0033] Specifically, the first locking nut 19 is first screwed into the adjusting screw 6, and its end face forms a tight abutment with the corresponding end face of the fixed seat 5. After tightening the first locking nut 19 to contact the fixed seat 5, the second locking nut 20 is then screwed into the adjusting screw 6, and its end face forms an abutment with the corresponding end face of the first locking nut 19. When adjusting the stroke, the second locking nut 20 is first loosened, and then the first locking nut 19 is loosened, separating both from the fixed seat 5. By rotating the operating head with a wrench, the adjusting screw 6 moves axially within the self-lubricating bushing 21 of the fixed seat 5, thereby driving the operating mechanism connected to the ball joint 14 and the connecting piece 4 to move along the direction of the release lever 1. This movement changes the relative position between the release lever 1 and the operating mechanism, thereby precisely adjusting the stroke amount when the clutch disengages. When the required disengagement stroke is reached, the first locking nut 19 is first tightened, so that its end face presses tightly against the end face of the fixed seat 5, generating sufficient friction to initially lock the axial position of the adjusting screw 6. Then, tighten the second locking nut 20 so that its end face presses tightly against the end face of the first locking nut 19. This double-nut tightening method generates a reverse preload between the two nuts, which effectively enhances the anti-loosening effect. Even under the vibration and impact conditions generated by frequent clutch operation, it can reliably prevent the adjusting screw 6 from rotating or loosening unexpectedly, ensuring the long-term stability of the adjusting position.

[0034] In addition, a dust cover 23 is provided on the control lever 3. The dust cover 23 is fitted over the connection between the control lever 3 and the connector 4, that is, it covers the mating interface between the ball joint seat 13 and the ball joint rod 14. The dust cover 23 is made of an oil-resistant and aging-resistant highly elastic flexible material, such as ethylene propylene diene monomer (EPDM) rubber or polyurethane (PU), and its shape is usually corrugated or conical, with good extensibility and sealing performance. The two ends of the dust cover 23 are tightly fixed to the control lever 3 and the connector 4 respectively by clamps or elastic closing structures, forming a sealed space. The presence of the dust cover 23 effectively prevents dust, mud, moisture and other impurities from entering the precision mating interface between the ball joint seat 13 and the ball joint 15, protecting the cleanliness of the ball joint connection, reducing the risk of wear and corrosion, thereby extending the service life of the ball joint connection mechanism, and ensuring the smoothness and reliability of operation.

[0035] The adjustable separation stroke clutch control structure of this invention demonstrates significant advantages in practical applications. By precisely rotating the adjusting screw 6, the relative position of the release lever 1 and the operating mechanism can be easily changed, thereby achieving continuous and fine adjustment of the clutch separation stroke. When the clutch friction plates wear during use, resulting in a shorter separation stroke and incomplete clutch disengagement, the adjusting screw 6 can be rotated counterclockwise to move it axially outward, thereby increasing the effective stroke of the release lever 1, compensating for the wear of the friction plates, and restoring normal clutch disengagement performance. Conversely, if the separation stroke is too large due to the installation or replacement of clutch plates of different thicknesses, resulting in unstable clutch engagement, the adjusting screw 6 can be rotated clockwise to move it axially inward, reducing the effective stroke of the release lever 1 and making the clutch engagement smoother. This adjustable design allows the clutch control structure to be widely adapted to various vehicle models and different operating conditions, improving the product's versatility, maintenance convenience, and reliability. The use of the double-nut structure 19 and 20 further enhances the stability after adjustment and locking, effectively resisting vibrations during vehicle operation and ensuring that the adjustment value does not deviate over a long period. The integration of the self-lubricating bushing 21 greatly simplifies the adjustment operation, reduces the torque required for adjustment, and improves the user experience. The ball joint connection structures 13, 14, and 15 effectively solve the stress concentration problem in the connection mechanism when the separating lever 1 swings, ensuring the smoothness and durability of the entire transmission chain. The wear-resistant pad 22 extends the life of critical contact parts and reduces maintenance costs. The dust cover 23 ensures the cleanliness of the moving mechanism, further improving the reliability of the system.

[0036] The materials selected for each component of this invention have been rigorously considered to meet the requirements of high strength, high durability, and high reliability in automotive clutch systems. For example, the main load-bearing components such as the release lever 1, operating lever 3, connecting part 4, fixing seat 5, adjusting screw 6, and ball joint rod 14 are all made of high-strength alloy steel and undergo appropriate heat treatment processes, such as quenching and tempering, to achieve the required hardness, strength, and toughness. Threaded connections, such as the threaded fit between the adjusting screw 6 and the self-lubricating bushing 21, the threaded fit between the adjusting screw 6 and the connecting part 16 of the ball joint rod 14, and the threaded fit between the locking nut 7 and the adjusting screw 6, are all precision-machined to ensure thread accuracy and tightness, thereby guaranteeing smooth adjustment and reliable locking. The fastening bolt 12 and matching nut are typically made of high-strength carbon steel or alloy steel and undergo anti-corrosion treatment, such as galvanizing or Dacromet coating, to adapt to the humid and dusty working environment of automotive chassis components. All these structural and material choices together constitute an efficient, reliable, and maintainable clutch control system.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 clutch control structure with adjustable separation stroke, characterized in that, include: Separating lever (1) and operating mechanism; One end of the release lever (1) is provided with a contact part (2) for contacting the clutch pressure plate; the operating mechanism includes an operating lever (3) and a connecting piece (4) hinged to the other end of the release lever (1); characterized in that: it also includes an adjustment mechanism disposed between the release lever (1) and the operating mechanism; the adjustment mechanism includes a fixed seat (5), an adjusting screw (6) and a locking nut (7); the fixed seat (5) is fixed on the rod body of the release lever (1); the fixed seat (5) is provided with a threaded through hole penetrating its body; one end of the adjusting screw (6) is rotatably connected to the connecting piece (4) of the operating mechanism; the rod body of the adjusting screw (6) passes through the threaded through hole of the fixed seat (5) and forms a threaded engagement with the threaded through hole; the locking nut (7) is fitted on the adjusting screw (6) and forms a threaded engagement with the adjusting screw (6); the end face of the locking nut (7) forms an abutment engagement with the corresponding end face of the fixed seat (5).

2. The clutch control structure with adjustable separation stroke according to claim 1, characterized in that: The separation lever (1) has a guide groove (8) extending along its length on its rod body; the fixing seat (5) includes a base (9) and clamping arms (10) on both sides of the base (9); the two clamping arms (10) are respectively located on both sides of the separation lever (1); the clamping arms (10) are provided with mounting holes (11) corresponding to the guide groove (8); the fastening bolts (12) pass through the mounting holes (11) and the guide groove (8) to fasten the fixing seat (5) to the separation lever (1).

3. A clutch control structure with adjustable separation stroke according to claim 1 or 2, characterized in that: The rotating connection structure between the adjusting screw (6) and the connecting member (4) includes a ball head seat (13) and a ball head rod (14); the ball head seat (13) is fixed on the connecting member (4); one end of the ball head rod (14) is provided with a ball head (15), which is accommodated in the ball head seat (13) and forms a spherical fit; the other end of the ball head rod (14) is provided with a connecting part (16) connected to the adjusting screw (6); the connecting part (16) is provided with an internal threaded hole (17); the end of the adjusting screw (6) is provided with an external threaded section (18); the external threaded section (18) is screwed into the internal threaded hole (17) to realize the fixed connection between the ball head rod (14) and the adjusting screw (6).

4. The clutch control structure with adjustable separation stroke according to claim 1, characterized in that: The locking nut (7) is a double nut structure, including a first locking nut (19) and a second locking nut (20); the first locking nut (19) and the second locking nut (20) are sequentially fitted onto the adjusting screw (6); the end face of the first locking nut (19) abuts against the end face of the fixed seat (5); the end face of the second locking nut (20) abuts against the end face of the first locking nut (19).

5. The clutch control structure with adjustable separation stroke according to claim 1, characterized in that: The threaded through hole of the fixed seat (5) is fitted with a self-lubricating bushing (21); the inner hole of the self-lubricating bushing (21) is provided with an internal thread that cooperates with the adjusting screw (6).

6. The clutch control structure with adjustable separation stroke according to claim 1, characterized in that: The contact portion (2) of the separation lever (1) is provided with a wear-resistant pad (22); the wear-resistant pad (22) is fixedly installed on the end of the separation lever (1) by fasteners.

7. The clutch control structure with adjustable separation stroke according to claim 1, characterized in that: The control lever (3) is provided with a dust cover (23); the dust cover (23) is sleeved on the outside of the connection between the control lever (3) and the connector (4).

8. The clutch control structure with adjustable separation stroke according to claim 1, characterized in that: The end of the adjusting screw (6) is provided with an operating head; the outer periphery of the operating head is provided with a polygonal structure.

Images