阅读说明：本技术 传动系统及自调节离合器 (Transmission system and self-adjusting clutch ) 是由 李欣 于 2021-08-11 设计创作，主要内容包括：一种传动系统及自调节离合器,自调节离合器包括离合器盖板,离合器盖板的轴向内端面上沿着圆周布置有若干个斜面,离合器盖板开设有第一安装槽；调节环,位于离合器盖板的轴向内端面下方,且调节环的轴线与离合器盖板的轴线重合,调节环的上端面与斜面相对的位置设置有斜楔块,斜楔块的坡度与离合器盖板的斜面坡度相匹配,调节环开设有第二安装槽；扭转弹簧,开口第一端安装于第一安装槽,开口第二端安装于第二安装槽。本发明实施例可以简化离合器盖板和调节环的结构,进而减少复杂形状导致的冲压变形,提高装配精度,不但安装简单,而且可以简化离合器盖板和调节环的制作工艺。(A transmission system and a self-adjusting clutch are provided, the self-adjusting clutch comprises a clutch cover plate, a plurality of inclined planes are arranged on the inner axial end surface of the clutch cover plate along the circumference, and a first mounting groove is formed in the clutch cover plate; the adjusting ring is positioned below the axial inner end surface of the clutch cover plate, the axis of the adjusting ring is overlapped with the axis of the clutch cover plate, a wedge block is arranged at the position, opposite to the inclined surface, of the upper end surface of the adjusting ring, the gradient of the wedge block is matched with the gradient of the inclined surface of the clutch cover plate, and a second mounting groove is formed in the adjusting ring; and the first end of the opening is arranged in the first mounting groove, and the second end of the opening is arranged in the second mounting groove. The embodiment of the invention can simplify the structures of the clutch cover plate and the adjusting ring, further reduce the stamping deformation caused by complex shapes, improve the assembly precision, simplify the installation and simplify the manufacturing process of the clutch cover plate and the adjusting ring.)

1. A self-adjusting clutch, comprising:

the clutch cover plate comprises a clutch cover plate, a plurality of inclined planes and a plurality of first mounting grooves, wherein the inclined planes are arranged on the inner end surface of the clutch cover plate in the axial direction along the circumference, the inclined planes extend along the tangential direction of the circumference of the clutch cover plate, and the clutch cover plate is provided with the first mounting grooves;

the adjusting ring is positioned below the axial inner end face of the clutch cover plate, the axis of the adjusting ring is overlapped with the axis of the clutch cover plate, a wedge block is arranged at the position, opposite to the inclined face, of the upper end face of the adjusting ring, the gradient of the wedge block is matched with the gradient of the inclined face of the clutch cover plate, and a second mounting groove is formed in the adjusting ring;

the torsion spring is of an annular structure integrally and is provided with an opening in the circumferential direction, the first end of the opening is installed in the first installation groove, and the second end of the opening is installed in the second installation groove, so that the adjusting ring and the clutch cover plate are connected through the torsion spring in a pre-compression state and can rotate relatively.

2. The self-adjusting clutch of claim 1, wherein the open first end of the torsion spring has a first protrusion extending in an axial direction of the torsion spring, the first protrusion being disposed in the first mounting groove, and the open second end of the torsion spring has a second protrusion extending in a direction away from the direction in which the first protrusion extends, the second protrusion being disposed in the second mounting groove.

3. The self-adjusting clutch of claim 1, wherein the first mounting groove penetrates the clutch cover plate in an axial direction of the clutch cover plate.

4. The self-adjusting clutch of claim 1, wherein the second mounting groove passes through the adjusting ring in an axial direction of the adjusting ring.

5. The self-adjusting clutch as claimed in any one of claims 1 to 4, further comprising:

the axial end of the columnar bulge is connected with the clutch cover plate, and the columnar bulge is in contact with the inner annular surface of the adjusting ring.

6. The self-adjusting clutch of claim 5, wherein the number of columnar protrusions is at least three.

7. The self-adjusting clutch of claim 5, further comprising:

the clutch cover plate axial interval arrangement just is located the adjustable ring below, the bellied axial other end butt of column in the pressure disk, the pressure disk has the hookup location, the friction disc is laminated with transmission power with the opposite pressure disk mutually.

8. The self-adjusting clutch of claim 7, further comprising:

and the diaphragm springs are axially arranged at intervals with the clutch cover plate and are axially compressed to be pressed between the adjusting ring and the pressure plate.

9. The self-adjusting clutch of claim 8, further comprising:

and one end of the induction spring is abutted to the diaphragm spring through the support ring, and the other end of the induction spring is fixed with the shell of the clutch.

10. A transmission system comprising an engine output shaft, a transmission input shaft and a self-adjusting clutch according to any one of claims 1 to 9, a friction plate of the self-adjusting clutch being fixedly connected to the engine output shaft and a pressure plate of the self-adjusting clutch being fixedly connected to the transmission output shaft.

Technical Field

The embodiment of the invention relates to the technical field of transmission, in particular to a transmission system and a self-adjusting clutch.

Background

The clutch transfers the power of the engine by the combination and separation of the pressure plate and the counter pressure plate, a friction plate is arranged between the pressure plate and the counter pressure plate, and the friction plate is inevitably worn in the use process of the clutch. When the friction plate is worn, the pressing force of the pressure plate when the pressure plate is combined with the pressure plate can be changed, and the effective transmission of the power of the engine is influenced.

Compared with the traditional clutch, the self-adjusting clutch is additionally provided with the self-adjusting mechanism, the self-adjusting clutch can automatically adjust the position of the pressure plate through the self-adjusting mechanism in the using process so as to compensate the change of pressing force caused by the abrasion of the friction plate, the pressing force is kept constant, and therefore the power of an engine is effectively transmitted to the transmission.

However, the self-adjusting clutch is complicated in structure and cumbersome in installation process.

Disclosure of Invention

The technical problem solved by the embodiment of the invention is to provide a self-adjusting clutch with a simple structure.

To solve the above problem, an embodiment of the present invention provides a self-adjusting clutch, including:

the clutch cover plate comprises a clutch cover plate, a plurality of inclined planes and a plurality of first mounting grooves, wherein the inclined planes are arranged on the inner end surface of the clutch cover plate in the axial direction along the circumference, the inclined planes extend along the tangential direction of the circumference of the clutch cover plate, and the clutch cover plate is provided with the first mounting grooves;

the adjusting ring is positioned below the axial inner end face of the clutch cover plate, the axis of the adjusting ring is overlapped with the axis of the clutch cover plate, a wedge block is arranged at the position, opposite to the inclined face, of the upper end face of the adjusting ring, the gradient of the wedge block is matched with the gradient of the inclined face of the clutch cover plate, and a second mounting groove is formed in the adjusting ring;

the torsion spring is of an annular structure integrally and is provided with an opening in the circumferential direction, the first end of the opening is installed in the first installation groove, and the second end of the opening is installed in the second installation groove, so that the adjusting ring and the clutch cover plate are connected through the torsion spring in a pre-compression state and can rotate relatively.

Optionally, the first end of the opening of the torsion spring has a first protrusion extending along the axial direction of the torsion spring, the first protrusion is disposed in the first mounting groove, the second end of the opening of the torsion spring has a second protrusion, the extending direction of the second protrusion deviates from the extending direction of the first protrusion, and the second protrusion is disposed in the second mounting groove.

Optionally, the first mounting groove penetrates the clutch cover plate in an axial direction of the clutch cover plate.

Optionally, the second mounting groove passes through the adjustment ring in an axial direction of the adjustment ring.

Optionally, the self-adjusting clutch provided in the embodiment of the present invention further includes:

the axial end of the columnar bulge is connected with the clutch cover plate, and the columnar bulge is in contact with the inner annular surface of the adjusting ring.

Optionally, the number of columnar protrusions is at least three.

Optionally, the self-adjusting clutch provided in the embodiment of the present invention further includes:

the clutch cover plate axial interval arrangement just is located the adjustable ring below, the bellied axial other end butt of column in the pressure disk, the pressure disk has the hookup location, the friction disc is laminated with transmission power with the opposite pressure disk mutually.

Optionally, the self-adjusting clutch provided in the embodiment of the present invention further includes:

and the diaphragm springs are axially arranged at intervals with the clutch cover plate and are axially compressed to be pressed between the adjusting ring and the pressure plate.

Optionally, the self-adjusting clutch provided in the embodiment of the present invention further includes:

and one end of the induction spring is abutted to the diaphragm spring through the support ring, and the other end of the induction spring is fixed with the shell of the clutch.

In order to solve the above problems, an embodiment of the present invention further provides a transmission system, which includes an engine output shaft, a transmission input shaft, and the self-adjusting clutch, where a friction plate of the self-adjusting clutch is fixedly connected to the engine output shaft, and a pressure plate of the self-adjusting clutch is fixedly connected to the transmission output shaft.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:

according to the self-adjusting clutch provided by the embodiment of the invention, the clutch cover plate is provided with the first mounting groove, the adjusting ring is provided with the second mounting groove, the first end of the opening of the torsion spring which is integrally in an annular structure and provided with the opening along the circumferential direction is mounted in the first mounting groove, the second end of the opening is mounted in the second mounting groove, and the torsion spring is arranged between the adjusting ring and the clutch cover plate; because a plurality of inclined planes are arranged on the axial inner end surface of the clutch cover plate along the circumference, matched inclined wedges are arranged at the positions of the upper end surface of the adjusting ring and the inclined planes, when a friction plate of the self-adjusting clutch is not worn, the inclined plane of the clutch cover plate is attached to the inclined wedges of the adjusting ring under the requirement of the relative position between the adjusting ring and the clutch cover plate, the torsion spring can be arranged between the clutch cover plate and the adjusting ring in a pre-compression state, when the friction plate of the self-adjusting clutch becomes thinner due to wear, the inclined plane of the clutch cover plate is not attached to the inclined wedges of the adjusting ring due to the generation of axial gaps, at the moment, under the action of the elastic force of the torsion spring, the clutch cover plate and the adjusting ring can rotate relatively, and gaps generated by wear can be compensated due to the existence of the inclined wedges.

It can be seen that the self-adjusting clutch provided by the embodiment of the invention can realize the connection between the clutch cover plate and the adjusting ring by using the torsion spring only by arranging the mounting grooves on the clutch cover plate and the adjusting ring, without arranging a support rod for mounting and limiting the position of the spring on the adjusting ring, or arranging an opening and a space for accommodating the support rod on the clutch cover plate, and arranging the mounting table for the spring in the circumferential direction of the clutch cover plate, so that the inner annular surface of the clutch cover plate can be manufactured into an annular structure, the structures of the clutch cover plate and the adjusting ring can be simplified, further, the stamping deformation caused by complex shapes can be reduced, the assembly precision is improved, the mounting is simple, the manufacturing processes of the clutch cover plate and the adjusting ring can be simplified, and the cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of a self-adjusting clutch construction;

FIG. 2 is an exploded view of a self-adjusting clutch;

FIG. 3 is a partial schematic view of a self-adjusting clutch;

FIG. 4 is a cross-sectional view of a self-adjusting clutch;

FIG. 5 is an exploded schematic view of a self-adjusting clutch provided by an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a self-adjusting clutch provided by an embodiment of the present invention;

FIG. 7 is an enlarged partial schematic view of region B of FIG. 5;

FIG. 8 is a partial schematic view of a self-adjusting clutch provided by an embodiment of the present invention;

FIG. 9 is another partial schematic view of the self-adjusting clutch provided by the embodiments of the present invention;

FIG. 10 is yet another partial schematic illustration of the self-adjusting clutch provided by the embodiments of the present invention;

FIG. 11 is a further partial schematic view of the self-adjusting clutch provided by the embodiments of the present invention.

Wherein: 1-a clutch cover plate; 2-an adjustment ring; 3-a coil spring; 10-clutch cover plate; 100-a first mounting groove; 101-inclined plane; 20-an adjustment ring; 200-a second mounting groove; 201-inclined wedge block; 30-a torsion spring; 31-a first protrusion; 32-a second protrusion; 40-columnar protrusions; 50-a support ring; 60-friction plate; 70-pressing a plate; 80-diaphragm spring; 90-induction spring.

Detailed Description

As known from the background art, the self-adjusting clutch has a complex structure and a complex installation process.

The reasons of complex structure and complex installation process are analyzed by combining a self-adjusting clutch.

Referring to fig. 1-4, fig. 1 is a schematic diagram of a self-adjusting clutch; FIG. 2 is an exploded view of a self-adjusting clutch; FIG. 3 is a partial schematic view of a self-adjusting clutch; fig. 4 is a cross-sectional view of a self-adjusting clutch.

As shown, a self-adjusting clutch includes: a clutch cover plate 1, an adjusting ring 2, and a coil spring 3. Wherein, the coil spring 3 is sleeved on the support rod of the adjusting ring 2 (as shown by the arrow in fig. 2), and the two axial ends of the coil spring 3 respectively abut against the end bulge of the support rod of the adjusting ring 2 (as shown by the oval dotted frame in fig. 1) and the arc-shaped claw end of the clutch cover plate 1 (as shown by the rectangular dotted frame in fig. 1 and fig. 2), and after the assembly, the coil spring 3 is pre-compressed. When the friction plate of the self-adjusting clutch is worn, the spiral spring 3 can push the clutch cover plate 1 and the adjusting ring 2 to rotate relatively so as to compensate the wear value of the friction plate and realize the self-adjusting function of the clutch.

It can be seen that, in order to guarantee that coil spring 3 connects clutch cover 1 and adjustable ring 2, need set up arc claw tip on the clutch cover 1, need set up the bracing piece on the adjustable ring 2 simultaneously, and, in order to avoid clutch cover and adjustable ring relative rotation in-process coil spring to deviate from along the bracing piece of adjustable ring 2, the bracing piece of adjustable ring need set up some in order to stretch into the space that clutch cover 1's arc claw tip and periphery enclose, this just causes clutch cover 1 and adjustable ring 2's structure to be more complicated, the assembling process is loaded down with trivial details. Referring to fig. 3, the clutch cover 1 is generally formed by press molding, and the complicated shape also tends to deform the region a of the clutch cover 1, which increases the assembly tolerance and decreases the mounting accuracy.

In order to simplify the structure of the clutch cover plate and the adjusting ring, the embodiment of the invention provides a transmission system and a self-adjusting clutch, the connection of the clutch cover plate and the adjusting ring can be realized by utilizing a torsion spring only by arranging mounting grooves on the clutch cover plate and the adjusting ring, a supporting rod for mounting and limiting the position of the spring is not required to be arranged on the adjusting ring, an opening and a space for accommodating the supporting rod are not required to be arranged on the clutch cover plate, and a mounting table for the spring is arranged in the circumferential direction of the clutch cover plate, so that the inner annular surface of the clutch cover plate can be manufactured into an annular structure, the structure of the clutch cover plate and the adjusting ring can be simplified, the stamping deformation caused by complex shapes is further reduced, the assembly precision is improved, the mounting is simple, the manufacturing process of the clutch cover plate and the adjusting ring can be simplified, and the cost is reduced.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the indication of the direction or the positional relationship referred to in the present specification is based on the direction or the positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and it is not intended to indicate or imply that the indicated device must have a specific direction, be configured in a specific direction, and thus, should not be construed as limiting the present invention.

Referring to fig. 5-10, fig. 5 is an exploded view of a self-adjusting clutch according to an embodiment of the present invention; FIG. 6 is a cross-sectional view of a self-adjusting clutch provided by an embodiment of the present invention; FIG. 7 is an enlarged partial schematic view of region B of FIG. 5; FIG. 8 is a partial schematic view of a self-adjusting clutch provided by an embodiment of the present invention; FIG. 9 is another partial schematic view of the self-adjusting clutch provided by the embodiments of the present invention; FIG. 10 is yet another partial schematic view of the self-adjusting clutch provided by the embodiments of the present invention.

As shown in the drawings, the self-adjusting clutch provided by the embodiment of the present invention includes:

the clutch cover plate comprises a clutch cover plate 10, wherein a plurality of inclined planes 101 (shown in fig. 8) are arranged on the axial inner end surface of the clutch cover plate 10 along the circumference, the inclined planes extend along the tangential direction of the circumference of the clutch cover plate, and the clutch cover plate 10 is provided with a first mounting groove 100;

the adjusting ring 20 is located below an axial inner end face of the clutch cover plate 10, the axis of the adjusting ring coincides with the axis of the clutch cover plate, a wedge 201 is arranged at a position, opposite to the inclined face 101, of the upper end face of the adjusting ring 20, the gradient of the wedge 201 is matched with the gradient of the inclined face of the clutch cover plate, and a second mounting groove 200 is formed in the axial direction of the adjusting ring 20;

the torsion spring 30, which has an opening in a circumferential direction, is integrally formed in an annular structure, and has a first end mounted to the first mounting groove 100 and a second end mounted to the second mounting groove 200, so that the adjustment ring 20 and the clutch cover 10 are connected to each other by the torsion spring 30 in a pre-compressed state and can rotate relative to each other.

As shown in fig. 6, a represents the axial direction and R represents the radial direction, wherein the axially inner end surface of the clutch cover plate 10 refers to the axial end surface close to the adjusting ring 20.

The adjusting ring 20 is located below the axially inner end face of the clutch cover plate 10, meaning that the adjusting ring 20 is located below the axially inner end face of the clutch cover plate 10 when the self-adjusting clutch is placed as shown in fig. 6.

The first mounting groove 100 is used for fixing the first end of the opening of the torsion spring 30, the first end of the opening of the torsion spring 30 is mounted in the first mounting groove 100, the first mounting groove 100 may be a blind groove or a through groove, the opening direction of the first mounting groove faces the adjusting ring, but the extending direction of the first mounting groove is not limited as long as the first end of the opening of the torsion spring 30 can be fixed.

The second mounting groove 200 is used for fixing the second end of the opening of the torsion spring 30, the second end of the opening of the torsion spring 30 is mounted in the second mounting groove 200, the second mounting groove 200 may be a blind groove or a through groove, the opening direction of the second mounting groove faces the clutch cover plate, but the extending direction of the second mounting groove is not limited as long as the second end of the opening of the torsion spring 30 can be fixed.

It should be noted that, the inclined plane extends along the tangential direction of the circumference of the clutch cover plate, which means that when the clutch cover plate and the adjusting ring rotate relatively, the wedge block can move along the extending direction of the inclined plane, so as to ensure that the wedge block can always contact with the inclined plane in the rotating process.

In one embodiment, to increase the friction between the clutch cover plate and the adjustment ring, the inclined surface of the clutch cover plate may be provided with a saw-toothed shape; similarly, the surface of the wedge matched with the inclined plane can also be added with stripes or saw-toothed shapes.

Referring to fig. 7, 9 and 11, in a specific embodiment, for the convenience of installation, the open first end of the torsion spring 30 has a first protrusion 31 extending along the axial direction of the torsion spring 30, the first protrusion 31 is disposed in the first mounting groove 100, the open second end of the torsion spring 30 has a second protrusion 32, the extending direction of the second protrusion 32 is away from the extending direction of the first protrusion 31, and the second protrusion 32 is disposed in the second mounting groove 200.

The shapes of the first protrusion 31 of the open first end and the second protrusion 32 of the open second end of the torsion spring 30 are not limited as long as the open first end can be fixed to the first mounting groove 100 and the open second end can be fixed to the second mounting groove 200.

Specifically, to simplify the structure of the torsion spring 30, in a specific embodiment, the first protrusion 31 may be cylindrical, and the extending direction of the first protrusion 31 is parallel to the axial direction of the self-adjusting clutch.

Correspondingly, as shown in fig. 7, in a specific embodiment, in order to facilitate the installation of the open first end of the torsion spring 30, the first installation groove 100 may penetrate the clutch cover 10 in the axial direction of the clutch cover, i.e., the first installation groove 100 may be a through hole. By providing the first mounting groove 100 as a through hole, the mounting firmness of the open first end of the torsion spring 30 may also be improved.

Of course, in other embodiments, the cross-sectional shape of the first protrusion may also be rectangular, triangular, elliptical, or other irregular shapes. Correspondingly, the shape of the first mounting groove may match the shape of the first protrusion, so as to mount the first protrusion to the first mounting groove.

Similarly, in an embodiment, in order to simplify the structure of the torsion spring 30, in an embodiment, the second protrusion 32 may also be cylindrical, the extending direction of the second protrusion 32 is parallel to the axial direction of the self-adjusting clutch, and the extending direction of the second protrusion 32 is away from the extending direction of the first protrusion 31.

Correspondingly, as shown in fig. 7, in one embodiment, in order to facilitate the installation of the open second end of the torsion spring 30, the second installation groove 200 may pass through the adjusting ring 20 in the axial direction of the adjusting ring, i.e., the second installation groove 200 may be a through hole. By providing the second mounting groove 200 as a through hole, the mounting firmness of the open second end of the torsion spring 30 can also be improved.

Of course, in other embodiments, the cross-sectional shape of the second protrusion may also be rectangular, triangular, elliptical, or other irregular shapes. Correspondingly, the shape of the second mounting groove can be matched with the shape of the second protrusion so as to mount the second protrusion to the second mounting groove.

The adjusting ring and the clutch cover plate are connected through the torsion spring in a pre-compression state and can rotate relatively, and the relative rest between the clutch cover plate and the adjusting ring is realized when the friction plate of the self-adjusting clutch is not abraded; when the friction plate of the self-adjusting clutch is worn, the adjusting ring and the clutch cover plate can rotate relatively under the action of the elastic force of the torque spring, so that the axial size between the clutch cover plate and the adjusting ring is increased, the wear value of the friction plate is compensated, and the pressing force of the self-adjusting clutch is kept constant before and after the wear.

According to the self-adjusting clutch provided by the embodiment of the invention, the clutch cover plate is provided with the first mounting groove, the adjusting ring is provided with the second mounting groove, the first end of the opening of the torsion spring which is of an annular structure and is provided with the opening along the circumferential direction is mounted in the first mounting groove, and the second end of the opening is mounted in the second mounting groove, so that the adjusting ring is connected with the clutch cover plate through the torsion spring; because of having arranged a plurality of inclined plane along the circumference on the axial inner end surface of clutch apron, and the up end of adjustable ring with the position that the inclined plane is relative has arranged assorted tapered wedge, when the friction disc of self-adjusting clutch is unworn, because of laminating mutually between the tapered wedge of inclined plane and adjustable ring of clutch apron, torsion spring can be the setting between clutch apron and adjustable ring of precompression state, when the friction disc of self-adjusting clutch is the attenuation because of wearing and tearing, no longer laminate because of producing the axial clearance between clutch apron inclined plane and the tapered wedge of adjustable ring, at this moment under torsion spring's elasticity effect, can rotate relatively between clutch apron and the adjustable ring, because the existence of tapered wedge, the clearance that the wearing and tearing produced has been compensated.

It can be seen that the self-adjusting clutch provided by the embodiment of the invention can realize the connection between the clutch cover plate and the adjusting ring by using the torsion spring only by arranging the mounting grooves on the clutch cover plate and the adjusting ring, without arranging a support rod for mounting and limiting the position of the spring on the adjusting ring, or arranging an opening and a space for accommodating the support rod on the clutch cover plate, and arranging the mounting table for the spring in the circumferential direction of the clutch cover plate, so that the inner annular surface of the clutch cover plate can be manufactured into an annular structure, the structures of the clutch cover plate and the adjusting ring can be simplified, further, the stamping deformation caused by complex shapes can be reduced, the assembly precision is improved, the mounting is simple, the manufacturing processes of the clutch cover plate and the adjusting ring can be simplified, and the cost is reduced.

Referring to fig. 6 and 10, in a specific embodiment, the self-adjusting clutch provided by the embodiment of the invention further includes:

the axial end of the columnar protrusion 40 is connected with the clutch cover plate 10, and the columnar protrusion 40 is in contact with the inner annular surface of the adjusting ring 20.

Since the torsion spring 30 is integrally formed in an annular structure, the inner annular surface of the torsion spring 30 is in contact with the outer annular surface of the columnar protrusion 40 by fitting the torsion spring 30 on the columnar protrusion 40, so that the columnar protrusion 40 can support the torsion spring 30 and prevent the torsion spring 30 from being deformed.

In one embodiment, the number of the stud bumps 40 may be at least three in order to further fix the torsion spring 30. The cylindrical protrusions 40 are uniformly distributed in the circumferential direction to serve as a support for guiding the torsion spring 30.

With continued reference to FIG. 6, in one particular embodiment, an embodiment of the present invention provides a self-adjusting clutch further comprising:

the pressure disk, friction disc 60 and to the pressure disk (not shown in the figure) that set gradually along the axial, wherein, the pressure disk with clutch apron 10 axial interval is arranged and is located the adjustable ring 20 below, the axial other end butt of columnar protrusion 40 in the pressure disk, the pressure disk has the hookup location, friction disc 60 and to the pressure disk laminating in order to transmit power mutually. After the self-adjusting clutch is operated for a period of time, the friction plate 60 may wear, resulting in a thinning of the friction plate 60. After the friction plate 60 becomes thinner, the engagement position of the pressure plate changes (the distance worn by moving the friction plate 60 toward the counter pressure plate) because the counter pressure plate is fixed in the axial direction; if the pressure plate is still moved to the original engagement position, the friction plate 60 may not be tightly engaged with the pressure plate, and the pressing force may be reduced, so that the power of the engine cannot be effectively transmitted. According to the self-adjusting clutch provided by the embodiment of the invention, when the joint position is changed after the friction plate 60 is worn, the torsion spring 30 drives the clutch cover plate 10 and the adjusting ring 20 to rotate, so that the pressure plate is pushed to move axially towards the pressure plate, the pressure plate can move to the changed joint position, the friction plate 60 and the counter pressure plate can be tightly jointed, the pressing force is kept constant, and the power of an engine is effectively transmitted to a transmission.

Of course, the self-adjusting clutch provided by the embodiment of the invention further comprises:

a diaphragm spring 80 axially spaced from the clutch cover 10 and axially compressed against the adjusting ring 20 and the pressure plate.

In a specific embodiment, the self-adjusting clutch provided by the embodiment of the present invention further includes:

one end of the induction spring 90 abuts against the diaphragm spring through the support ring 50, and the other end of the induction spring 90 is fixed to the housing of the clutch.

When the friction plate 60 of the clutch is not worn, because the inductive force of the inductive spring is set to be smaller than the maximum separation force of the clutch, the inductive spring is not compressed in the separation process of the clutch, the diaphragm spring moves around the original fulcrum (taking the support ring 50 as the fulcrum), and the clutch works normally.

When the friction plate is worn, the combination position of the pressure plate and the friction plate can be kept unchanged only by needing larger working pressing force, and the maximum separating force required by the separating clutch is increased and is larger than the induction force of the induction spring. Thus, when the driver uses more force to disengage the clutch, the sense spring will be compressed, creating a gap between the clutch cover and the adjustment ring. Due to the action of the torsion spring, the adjusting ring rotates relative to the clutch cover plate, and due to the existence of the wedge surfaces, the gap generated by abrasion is compensated.

In order to solve the above problems, an embodiment of the present invention further provides a transmission system, which includes an engine output shaft, a transmission input shaft, and the self-adjusting clutch, where a friction plate of the self-adjusting clutch is fixedly connected to the engine output shaft, and a pressure plate of the self-adjusting clutch is fixedly connected to the transmission output shaft.

The transmission system provided by the embodiment of the invention comprises the self-adjusting clutch, only the mounting grooves are required to be formed on the clutch cover plate and the adjusting ring, the connection between the clutch cover plate and the adjusting ring can be realized by utilizing the torsion spring, the supporting rod for mounting and limiting the position of the spring is not required to be formed on the adjusting ring, the opening and the space for accommodating the supporting rod are not required to be formed on the clutch cover plate, and the mounting table for the spring is arranged in the circumferential direction of the clutch cover plate, so that the inner annular surface of the clutch cover plate can be manufactured into an annular structure, the structures of the clutch cover plate and the adjusting ring can be simplified, the stamping deformation caused by complex shapes can be further reduced, the assembly precision is improved, the installation is simple, the manufacturing process of the clutch cover plate and the adjusting ring can be simplified, and the cost is reduced.

Although the embodiments of the present invention have been disclosed, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.