CN217107929U

CN217107929U - Wet clutch

Info

Publication number: CN217107929U
Application number: CN202220934872.5U
Authority: CN
Inventors: 林宗树
Original assignee: Zhejiang Aodehua Auto Parts Co ltd
Current assignee: Zhejiang Aodehua Auto Parts Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-02
Anticipated expiration: 2032-04-21

Abstract

The utility model provides a wet clutch belongs to auto-parts technical field. It has solved the not good problem of effect that resets. This wet clutch, including clutch main part and output shaft, this clutch main part is by the sealed cowling, the input disc, the friction disc, the preforming, the steel sheet, outer wheel hub, output hub and piston are constituteed, the one end of above-mentioned output shaft stretches into in the outer wheel hub and is connected with it, the piston is connected with outer wheel hub looks sliding fit, set up on the output shaft along its length direction and set up, and fuel feeding liquid process, and be the oil duct I that L type structure set up, outer wheel hub is located and sets up the oil duct II that is linked together with oil duct on the periphery wall of piston right side department, outer wheel hub is located and offers the intercommunicating pore of being convenient for piston motion on the inner wall of laminating mutually with the piston, be provided with the guide unit who is connected with it and is used for the piston direction on the output hub, be provided with the reset unit that has cushioning effect and can reset the piston between output hub and the piston. The utility model has the advantages of good resetting effect.

Description

Wet clutch

Technical Field

The utility model belongs to the technical field of auto-parts, a wet clutch is related to.

Background

The clutch is a clutch device of an engine vehicle and a wheel transmission device, plays a role in separating and closing, can be selectively stepped on or released according to requirements in the process of riding, thereby realizing the connection and disconnection control of a power mechanism and the consistent power, and is one of important parts for automobile running. Wherein wet clutch generally reaches the conflict cooperation of control friction disc and steel sheet through the motion of hydraulic control piston, and the piston generally resets through the dish spring, because clutch working strength is higher, in long-term use, probably leads to dish spring life to descend, influences the effect that resets, damages even can't reset.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a reset effectual and have the wet clutch that the direction resets.

The purpose of the utility model can be realized by the following technical proposal: a wet clutch comprises a clutch main body and an output shaft, wherein the clutch main body consists of a sealing cover, an input disc, a friction plate, a pressing sheet, a steel sheet, an outer hub, an output hub and a piston, one end of the output shaft extends into the outer hub and is connected with the outer hub, the piston is connected with the outer hub in a sliding fit manner, it is characterized in that the output shaft is provided with a groove which is arranged along the length direction of the output shaft and through which oil is supplied, the outer hub is provided with a first oil duct which is arranged in an L-shaped structure, the outer peripheral wall of the outer hub at the right side of the piston is provided with a second oil duct which is communicated with the first oil duct, the inner wall of the outer hub, which is attached to the piston, is provided with a communication hole which is convenient for the piston to move, the output hub is provided with a guide unit which is connected with the output hub and used for guiding the piston, and a reset unit which has a buffering effect and can reset the piston is arranged between the output hub and the piston.

In the wet clutch, the right end surface of the piston is provided with at least two recessed grooves which are inwards recessed in the axial direction and are coaxial with the piston, the oil passage two is communicated with the recessed grooves through the communication holes, and the left end surface of the piston is provided with an annular groove.

In the wet clutch, a sealing cover for sealing the second oil passage is arranged at the opening of the second oil passage of the outer hub.

In the above wet clutch, the guide unit is composed of a plurality of guide rods, the guide rods are arranged on the output hub, are fixedly connected with the output hub and are arranged along the circumferential direction of the output hub, and the left end face of the piston, which is located at the corresponding guide rod, is provided with a plurality of guide grooves, the number of the guide grooves is the same as that of the guide rods, and the right ends of the corresponding guide rods extend into the guide grooves.

In foretell wet clutch, the guide bar on all overlap and be equipped with auxiliary spring, the periphery wall of guide bar on be provided with radial outside bellied bellying, auxiliary spring's both ends contradict with piston and bellying respectively.

In the above wet clutch, the reset unit is composed of an annular reset elastic sheet and a reset spring, the annular reset elastic sheet is sleeved on the outer hub, and an installation cavity for installing the reset spring is reserved between the annular reset elastic sheet and the piston, a limiting ring for limiting the position of the annular reset elastic sheet and enabling the annular reset elastic sheet to be in contact with the piston is arranged on the peripheral wall of the outer hub on the left side of the annular reset elastic sheet, the annular reset elastic sheet is composed of an outer folded edge, an inclined ring part and an inner folded edge, a through hole for the corresponding guide rod to pass through is formed in the end face of the annular reset elastic sheet, where the outer folded edge is located at the corresponding guide rod, and the auxiliary spring is in contact with the outer folded edge.

Compared with the prior art, the wet clutch has the following advantages:

1. the output hub is provided with a guide unit which is connected with the output hub and used for guiding the piston, and a reset unit which has a buffering effect and can reset the piston is arranged between the output hub and the piston.

Drawings

Fig. 1 is a schematic sectional view of the wet clutch according to the present invention.

In the figure, 1, output shaft; 2. an outer hub; 3. a piston; 4. a first oil duct; 5. an oil duct II; 6. a communicating hole; 7. a recessed groove; 8. an annular groove; 9. a sealing cover; 10. a guide bar; 11. a guide groove; 12. an auxiliary spring; 13. a boss portion; 14. an annular reset elastic sheet; 15. a return spring; 16. a mounting cavity; 17. a limiting ring; 18. folding the edges outwards; 19. an inclined ring portion; 20. and (6) folding the edges inwards.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the wet clutch comprises a clutch main body and an output shaft 1, the clutch main body is composed of a sealing cover, an input disc, a friction plate, a pressing plate, a steel sheet, an outer hub 2, an output hub and a piston 3, one end of the output shaft 1 extends into the outer hub 2 and is connected with the outer hub, the piston 3 is connected with the outer hub 2 in a sliding fit manner, a shock absorber assembly which is fixedly connected with the input disc and has a shock absorbing effect is arranged on the input disc, a sealing ring which strengthens the sealing performance is arranged between the piston 3 and the outer hub 2, the output shaft 1 is provided with a first oil passage 4 which is arranged along the length direction and is used for oil supply to pass through, and is in an L-shaped structure, a sealing plug which is fixedly connected with the first oil passage 4 is arranged at an opening at one end of the output shaft 1, the other end of the first oil passage 4 is connected with other oil passages, a second oil passage 5 which is communicated with the first oil passage 4 is arranged on the outer peripheral wall of the outer hub 2 at the right side of the piston 3, the second oil duct 5 does not axially penetrate through the outer hub 2, a communicating hole 6 convenient for the piston 3 to move is formed in the inner wall, attached to the right end face of the piston 3, of the outer hub 2, a guide unit connected with the output hub and used for guiding the piston 3 is arranged on the output hub, a reset unit with a buffering function and capable of resetting the piston 3 is arranged between the output hub and the piston 3, the guide unit is composed of a plurality of guide rods 10, the guide rods 10 are arranged on the right end face of the output hub, fixedly connected with the output hub and arranged along the circumferential direction of the output hub, a plurality of guide grooves 11, the number of which is the same as that of the guide rods 10 and into which the right ends of the corresponding guide rods 10 extend, are formed in the left end face of the piston 3, located at the corresponding guide rods 10, the reset unit is composed of annular reset elastic sheets 14 and reset springs 15, and the annular reset elastic sheets 14 are sleeved on the outer hub 2, and leave the installation cavity 16 that supplies reset spring 15 to install between piston 3, this reset spring 15 also is located on the outer wheel hub 2, the outer wheel hub 2 is located and is equipped with the spacing ring 17 that limits the position of annular reset shell fragment 14 and make annular reset shell fragment 14 and piston 3 inconsistent on the perisporium of the left side department of annular reset shell fragment 14, the annular reset shell fragment is by outer hem 18, slope ring portion 19 and interior hem 20 make up, this slope ring portion 19 is the frustum structure setting, the outer hem 18 is located and is offered the through-hole that supplies corresponding guide bar 10 to pass on the terminal surface of the corresponding guide bar 10 department in the annular reset shell fragment 14, and make the right-hand member of the above-mentioned auxiliary spring 12 and outer hem 18 inconsistent, above-mentioned spacing ring 17 can be formed by two semi-ring splices, and make spacing ring 17 embeddable in outer wheel hub 2, spacing ring 17 can also be connected with outer wheel hub 2 through the round pin axle.

In order to ensure that the pressure keeps balance when moving relative to the piston 3, the right end face of the piston 3 is provided with at least two recessed grooves 7 which are inwards concave in the axial direction and coaxial with the piston 3, the communicating holes 6 are symmetrically arranged, the oil duct II 5 is communicated with the recessed grooves 7 through the communicating holes 6, and the left end face of the piston 3 is provided with an annular groove 8.

As a preferred structure, the outer hub 2 is provided with a seal cover 9 for sealing the second oil passage 5 at the opening of the second oil passage 5.

In order to improve the resetting effect, the guide rod 10 is sleeved with an auxiliary spring 12, a protruding portion 13 protruding radially outwards is arranged on the outer peripheral wall of the guide rod 10, and two ends of the auxiliary spring 12 are respectively abutted to the piston 3 and the protruding portion 13.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A wet clutch comprises a clutch main body and an output shaft (1), wherein the clutch main body comprises a sealing cover, an input disc, a friction plate, a pressing sheet, a steel sheet, an outer hub (2), an output hub and a piston (3), one end of the output shaft (1) extends into the outer hub (2) and is connected with the outer hub, the piston (3) is connected with the outer hub (2) in a sliding fit manner, the wet clutch is characterized in that the output shaft (1) is provided with a first oil duct (4) which is arranged along the length direction of the output shaft and through which oil passes and is in an L-shaped structure, a second oil duct (5) communicated with the first oil duct (4) is arranged on the outer peripheral wall of the outer hub (2) at the right side of the piston (3), the outer hub (2) is arranged on the inner wall jointed with the piston (3) and is provided with a communication hole (6) convenient for the piston (3) to move, the output hub is provided with a guide unit which is connected with the output hub and used for guiding the piston (3), and a reset unit which has a buffering effect and can reset the piston (3) is arranged between the output hub and the piston (3).

2. A wet clutch according to claim 1, wherein the piston (3) has a recessed groove (7) formed on a right end surface thereof and axially recessed in the same direction as the piston (3), the number of the communication holes (6) is at least two, the second oil passage (5) is communicated with the recessed groove (7) through the communication holes (6), and the piston (3) has a circular groove (8) formed on a left end surface thereof.

3. A wet clutch according to claim 1, characterised in that the outer hub (2) is provided with a sealing cover (9) at the opening of the second oil channel (5) for sealing the second oil channel (5).

4. A wet clutch according to claim 1, wherein the guide unit comprises a plurality of guide rods (10), the plurality of guide rods (10) are disposed on the output hub, fixedly connected with the output hub, and arranged along the circumferential direction of the output hub, and a plurality of guide grooves (11) having the same number as the guide rods (10) and allowing the right ends of the corresponding guide rods (10) to extend into are formed on the left end surface of the piston (3) at the corresponding guide rods (10).

5. A wet clutch according to claim 4, characterized in that the guide rods (10) are each provided with an auxiliary spring (12), the outer circumferential wall of the guide rods (10) is provided with a protrusion (13) protruding radially outward, and both ends of the auxiliary spring (12) respectively abut against the piston (3) and the protrusion (13).

6. The wet clutch according to claim 5, wherein the reset unit comprises an annular reset spring (14) and a reset spring (15), the annular reset spring (14) is sleeved on the outer hub (2), a mounting cavity (16) for mounting the reset spring (15) is reserved between the annular reset spring (14) and the piston (3), a limiting ring (17) for limiting the position of the annular reset spring (14) and enabling the annular reset spring (14) to be in contact with the piston (3) is arranged on the peripheral wall of the outer hub (2) on the left side of the annular reset spring (14), the annular reset spring comprises an outer folded edge (18), an inclined ring portion (19) and an inner folded edge (20), a through hole for the corresponding guide rod (10) to pass through is formed in the end face of the outer folded edge (18) of the annular reset spring (14) on the corresponding guide rod (10), and the auxiliary spring (12) is abutted against the outer folded edge (18).