Clutch and engine

Abstract

The clutch comprises a clutch outer cover, a plurality of driving friction plates and a plurality of driven friction plates, and the driving friction plates are in transmission in the circumferential direction through a plurality of independently-arranged driving transmission pieces distributed in the circumferential direction and are in sliding fit with the clutch outer cover in the axial direction. According to the clutch and the engine, the clutch outer cover and the driving friction plate are in transmission fit through the driving transmission piece which is independently arranged, so that compared with the prior art, the problems of jamming, separation and failure cannot occur, the durability of the clutch is improved, and meanwhile later maintenance is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to an engine component or accessory component, in particular to a clutch and engine. BACKGROUND

[0002] The clutch is arranged between the engine and the driving wheel, and transmits or cuts off the transmission of the rotating driving force of the engine to the driving wheel. In the prior art, when the wet multi-plate clutch transmits power, a lug is arranged on the driving friction plate, a lug groove is arranged on the clutch cover, and power transmission is achieved through the cooperation of the lug and the lug groove. However, impact force will be generated during the long-term operation of the clutch, which will cause the lug and the lug groove to wear. As the wear gradually increases, and since the clutch cover is generally an aluminum alloy die casting, the contact between the lug and the lug groove will be crushed due to the surface pressure and impact during use, causing the lug to be stuck in the collapsed position, which makes the clutch unable to separate during operation, resulting in the failure of the clutch.

[0003] Therefore, it is necessary to improve the structure of the clutch in the prior art so that the clutch will not fail due to the wear of the lug and the lug groove, improve the reliability of the clutch, and achieve the gap cooperation between the driving friction plate and the clutch cover without setting a complex structure as a whole. SUMMARY

[0004] Therefore, the utility model discloses a clutch and engine, which can prevent the clutch from failing due to the wear of the lug and the lug groove, improve the reliability of the clutch, and achieve the transmission cooperation between the driving friction plate and the clutch cover without setting a complex structure as a whole.

[0005] The clutch of the utility model, comprising a clutch cover, a plurality of driving friction plates and a plurality of driven friction plates, a plurality of driving friction plates are matched with the clutch cover in the circumferential direction transmission and axial sliding through a plurality of independently arranged driving transmission members distributed in the circumferential direction.

[0006] Further, the driving friction plate comprises an annular friction plate lining plate, the outer circle of the friction plate lining plate is provided with a driving friction plate transmission groove corresponding to the driving transmission member in the circumferential direction, and the driving friction plate transmission groove can partially contain the driving transmission member to form the circumferential direction transmission and axial sliding cooperation.

[0007] Further, the clutch cover comprises a bottom plate and a side wall, the inner circle of the side wall is provided with a cover transmission groove corresponding to the driving transmission member in the circumferential direction, and the cover transmission groove can partially contain the driving transmission member to form the circumferential direction transmission and axial sliding cooperation.

[0008] Further, the clutch further comprises a center sleeve, the driven friction plate and the center sleeve are formed in a circumferential direction transmission and an axial slidable cooperation in a mutual embedding manner.

[0009] Further, the center sleeve comprises a cylindrical main body and a flange extending to a radial outer side from an outer periphery of the main body, a plurality of limiting grooves I matched with the driving transmission member are arranged on the flange in an interval manner, and one end of the driving transmission member is accommodated in the limiting grooves I.

[0010] Further, the clutch further comprises a pressing plate, the pressing plate is arranged in a manner that can approach or leave the center sleeve and can relatively rotate, and can press the driving friction plate and the driven friction plate;

[0011] The pressing plate is provided with a plurality of limiting grooves II matched with the driving transmission member, and the other end of the driving transmission member is accommodated in the limiting grooves II.

[0012] Further, the driving transmission member and the friction plate lining plate are made of steel material;

[0013] The thickness of the friction plate lining plate is 1mm-2mm.

[0014] Further, the outer diameter of the driven friction plate is 116mm-118mm.

[0015] Further, the driving transmission member is a column pin, and the driving friction plate transmission groove and the outer cover transmission groove are semicircular grooves.

[0016] The engine of the utility model, comprising the clutch.

[0017] The clutch and the engine of the utility model, through setting independent driving transmission member, realize power transmission between clutch outer cover and driving friction plate, compared with prior art, make clutch when running, there is no problem of wear and tear between lug and lug groove leading to clutch running failure, at the same time, due to independent setting of driving transmission member, it is favorable to post-maintenance of clutch, and the overall cost is lower, which is favorable to realize mass production, and the installation space size of the clutch as a whole does not change compared with prior art, so that it can be used in cooperation with the existing structure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in combination with the drawings and examples:

[0019] Figure 1 It is the structural schematic diagram of the clutch of the utility model;

[0020] Figure 2 It isFigure 1 sectional view along A-A direction;

[0021] Figure 3 structure diagram of the pressing plate;

[0022] Figure 4 structure diagram of the center sleeve;

[0023] Figure 5 structure diagram of the driving friction plate;

[0024] Figure 6 structure diagram of the driven friction plate;

[0025] Figure 7 structure diagram of the clutch cover;

[0026] Figure 8 structure diagram of the clutch after hiding the clutch cover, like

[0027] Among the above drawings, the following signs are contained:

[0028] 1, clutch cover; 101, cover transmission groove; 2, pressing plate; 201, limiting groove II; 3, center sleeve; 301, flange; 3011, limiting groove I; 302, main body; 3021, fitting part; 4, driving transmission part; 5, driving friction plate; 501, driving friction plate transmission groove; 502, friction plate lining plate; 6, driven friction plate; 601, fitting groove. DETAILED DESCRIPTION

[0029] Figure 1 structure diagram of the utility model, Figure 2 is Figure 1 sectional view along A-A direction, Figure 3 structure diagram of the pressing plate, Figure 4 structure diagram of the center sleeve, Figure 5 structure diagram of the driving friction plate, Figure 6 structure diagram of the driven friction plate, Figure 7 structure diagram of the clutch cover, Figure 8 structure diagram of the clutch after hiding the clutch cover, like Figures 1-8The clutch of the embodiment comprises a clutch cover 1, a plurality of driving friction plates 5 and a plurality of driven friction plates 6. The plurality of driving friction plates 5 are in circumferential transmission and axially slidable in the clutch cover 1 through a plurality of independently arranged driving transmission members 4 distributed in the circumferential direction. In the structure, the driving friction plates 5 and the driven friction plates 6 are generally annular structures. The number of the driving friction plates 5 and the number of the driving transmission members 4 can be consistent or inconsistent. When a plurality of driving friction plates 5 are set as a whole, the driving transmission members 4 are distributed in the circumferential direction of the whole. The driving transmission members 4 are independently arranged, that is, the driving transmission members 4 are separate components, which are in clearance fit with the clutch cover 1 and the driving friction plates 5. During operation of the clutch, the clutch cover 1 is a driving member for receiving external power and transmitting the power to the driving friction plates 5 through the driving transmission members 4. At the same time, the driving friction plates 5 can slide in the axial direction of the clutch cover 1 for combination or separation with the driven friction plates 6, so as to transmit power or interrupt power transmission. The number, shape and structure of the driving transmission members 4 are not limited and can be a pin structure or set according to the use requirement. By setting the driving transmission members 4, compared with the cooperation of the lugs (fixedly arranged on the driving friction plates 5) and the lug grooves (arranged on the clutch cover 1) in the prior art, the durability of the clutch in use can be improved, and the phenomenon of being unable to separate will not occur.

[0030] In the prior art, the cooperation structure of the driving friction plate and the clutch cover is that the lugs are arranged on the driving friction plate and the lug grooves are arranged on the clutch cover. However, after long-term use of the clutch, the lug grooves will be bitten, so that the lugs will be stuck in the bitten position during use of the clutch, the clutch cannot be separated, and the clutch is invalid. The clutch of the utility model realizes power transmission between the clutch cover 1 and the driving friction plate 5 through the independently arranged driving transmission members 4, compared with the prior art, the problem that the clutch is invalid due to wear between the lugs and the lug grooves during operation of the clutch does not exist. At the same time, the driving transmission members 4 are independently arranged, which is beneficial to the later maintenance of the clutch and the overall cost is low, which is beneficial to mass production.

[0031] In the embodiment, the driving friction plate 5 comprises a ring-shaped friction plate backing plate 502, the outer circle of the friction plate backing plate 502 is provided with driving friction plate transmission grooves 501 corresponding to the driving transmission members 4 in the circumferential direction, the driving friction plate transmission grooves 501 can partially contain the driving transmission members 4 to form a transmission in the circumferential direction and a slidable cooperation in the axial direction; the friction plate backing plate 502 is provided with a plurality of friction materials, the cooperation structure of the friction plate backing plate 502 and the friction materials is the application of the prior art, which will not be described here, a plurality of driving friction plate transmission grooves 501 corresponding to the driving transmission members 4 are arranged on the outer circumferential surface of the friction plate backing plate 502 (i.e., the driving friction plate transmission grooves 501 are a plurality of grooves, the number of which is consistent with the number of the driving transmission members 4), the driving friction plate transmission grooves 501 can partially contain the driving transmission members 4, so that the shape of the driving friction plate transmission grooves 501 is adapted to the shape of the driving transmission members 4, and the driving transmission members 4 and the driving friction plate 5 are single-degree-of-freedom cooperation, the overall cooperation structure is simple, which is conducive to the forming and processing of the driving friction plate 5.

[0032] In the embodiment, the clutch cover 1 comprises a bottom plate and a side wall, the inner circle of the side wall is provided with cover transmission grooves 101 corresponding to the driving transmission members 4 in the circumferential direction, the cover transmission grooves 101 can partially contain the driving transmission members 4 to form a transmission in the circumferential direction and a slidable cooperation in the axial direction; the shape of the clutch cover 1 is a cylindrical structure, the cover transmission grooves 101 corresponding to the driving transmission members 4 are arranged on the inner circumferential surface of the side wall of the clutch cover 1, the cover transmission grooves 101 can partially contain the driving transmission members 4, so that the shape and number of the cover transmission grooves 101 are adapted to the driving transmission members 4, compared with the prior art of opening lug grooves on the side wall of the clutch cover 1, the structure can effectively improve the structural strength of the clutch cover 1, and can increase the effective action area of the clutch cover 1 and the driving transmission members 4, reduce the surface pressure, improve the reliability of the structure, and improve the service life of the clutch; during assembly, the driving transmission members 4 are embedded in the cover transmission grooves 101 and the driving friction plate transmission grooves 501 to form a transmission, the number and position of the cover transmission grooves 101 and the driving friction plate transmission grooves 501 are one-to-one corresponding, so that after assembly is completed, the driving transmission members 4 are embedded in the containing space formed by the cover transmission grooves 101 and the driving friction plate transmission grooves 501 and form a transmission, which is conducive to the disassembly and installation of the driving transmission members 4 and the maintenance and use of the clutch.

[0033] In the embodiment, the clutch further comprises a center sleeve 3, the driven friction plate 6 and the center sleeve 3 are in a circumferential direction transmission and axially slidable cooperation in a mutual embedding manner; the center sleeve 3 is arranged in the clutch cover 1, the cooperation relationship between the driving friction plate 5, the driven friction plate 6 and the center sleeve 3 is the application of the prior art, and here, it will not be repeated, the inner circumferential surface of the driven friction plate 6 is provided with a plurality of embedding grooves 601, the outer circumferential surface of the center sleeve 3 is provided with a plurality of embedding parts 3021 matched with the embedding grooves 601, through the cooperation of the embedding grooves 601 and the embedding parts 3021, the driven friction plate 6 can transmit power to the center sleeve 3 after receiving the power transmitted by the driving friction plate 5, and the driven friction plate 6 can slide along the axial direction of the center sleeve 3, so as to realize the transmission or interruption of the power transmission.

[0034] In the embodiment, the center sleeve 3 comprises a cylindrical main body 302 and a flange 301 extending radially outward from the outer circumferential edge of the main body 302, a plurality of limiting grooves I 3011 matched with the driving transmission member 4 are arranged on the flange 301, and one end of the driving transmission member 4 is accommodated in the limiting grooves I 3011; in use, the driving friction plate 5 and the driven friction plate 6 are sleeved on the main body 302, the limiting grooves I 3011 matched with the driving transmission member 4 are arranged on the flange 301, and one end of the driving transmission member 4 is accommodated in the limiting grooves I 3011 (relative to the lower end of the driving transmission member 4 in the Figure 8 limiting grooves I 3011, that is, a space is formed between the driving transmission member 4 and the groove bottom of the limiting grooves I 3011, so as to avoid the position of the driving transmission member 4 and support one end of the driving transmission member 4.

[0035] In the embodiment, the clutch further comprises a pressing plate 2, the pressing plate 2 is arranged in a manner that can approach or leave the center sleeve 3 and can rotate relative to the center sleeve 3, and can press the driving friction plate 5 and the driven friction plate 6; in use, the pressing plate 2 is arranged at one end of the clutch cover 1, so that the center sleeve 3, the driving friction plate 5 and the driven friction plate 6 are arranged between the clutch cover 1 and the pressing plate 2, of course, the clutch further comprises a push rod, and the cooperation relationship between the push rod, the clutch cover 1, the pressing plate 2, the driving friction plate 5 and the driven friction plate 6 is the application of the prior art, and here, it will not be repeated, through the movement of the pressing plate 2, the driving friction plate 5 can transmit power to the driven friction plate 6, or interrupt the power transmission between the driving friction plate 5 and the driven friction plate 6;

[0036] The pressing plate 2 is provided with a plurality of limiting grooves II 201 matched with the driving transmission member 4, and the other end of the driving transmission member 4 is accommodated in the limiting grooves II 201; the limiting grooves II 201 matched with the driving transmission member 4 are arranged at one end of the pressing plate 2 close to the center sleeve 3, so that in use, the upper end and the lower end of the driving transmission member 4 (relative to the Figure 8The upper and lower directions are respectively accommodated in the limiting groove II 201 and the limiting groove I 3011, and are respectively spaced from the bottom of the limiting groove I 3011 and the limiting groove II 201, which can limit the active transmission component 4 and prevent the active transmission component 4 from disengaging from the clutch cover 1. The overall structure is simple and can be realized by making simple improvements on the basis of the existing structure, which is conducive to reducing production costs.

[0037] In this embodiment, the active transmission component 4 and the friction plate liner 502 are made of steel. The active transmission component 4 and the friction plate liner 502 can be made of higher strength materials, thereby improving the structural strength. At the same time, the friction plate liner 502 can be manufactured by stamping, thereby reducing the production cost.

[0038] The thickness of the friction plate liner 502 is 1mm to 2mm. When the friction plate liner 502 is made of a high-strength material, the thickness of the friction plate liner 502 can be reduced compared with the prior art, which is beneficial to the heat dissipation of the clutch.

[0039] In this embodiment, the outer diameter of the driven friction plate 6 is 116mm to 118mm; the outer diameter of the driven friction plate 6 is preferably 117mm, so as to avoid the driving transmission component 4. The outer diameter of the driven friction plate 6 can be set according to actual needs as the structure of the driving transmission component 4 changes.

[0040] In this embodiment, the active transmission component 4 is a pin, and the active friction plate transmission groove 501 and the outer cover transmission groove 101 are semi-circular grooves. In this structure, the active transmission component 4 is preferably a pin, which is beneficial to the production and manufacturing of the active transmission component 4. Of course, it can also be other shapes. At the same time, the shapes of the active friction plate transmission groove 501 and the outer cover transmission groove 101 are adapted to the pin. When the active transmission component 4 is a pin, the active friction plate transmission groove 501 and the outer cover transmission groove 101 are semi-circular grooves.

[0041] The engine in this embodiment includes the aforementioned clutch.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clutch, characterized by: The clutch comprises a clutch cover, a plurality of driving friction plates and a plurality of driven friction plates, the driving friction plates are in circumferential transmission and axially slidable cooperation with the clutch cover through a plurality of independently arranged driving transmission members distributed in the circumferential direction.

2. The clutch of claim 1, wherein: The driving friction plate comprises a ring-shaped friction plate backing plate, an outer circle of the friction plate backing plate is provided with a driving friction plate transmission groove corresponding to the driving transmission member in the circumferential direction, the driving friction plate transmission groove can partially contain the driving transmission member to form circumferential transmission and axially slidable cooperation.

3. The clutch of claim 2, wherein: The clutch cover comprises a bottom plate and a side wall, an inner circle of the side wall is provided with a cover transmission groove corresponding to the driving transmission member in the circumferential direction, the cover transmission groove can partially contain the driving transmission member to form circumferential transmission and axially slidable cooperation.

4. The clutch of claim 1, wherein: The clutch further comprises a center sleeve, the driven friction plate and the center sleeve are in circumferential transmission and axially slidable cooperation in a mutually embedded manner.

5. The clutch of claim 4, wherein: The center sleeve comprises a cylindrical main body and a flange extending radially outward from an outer periphery of the main body, a plurality of limiting grooves I corresponding to the driving transmission member are arranged on the flange at intervals, and one end of the driving transmission member is accommodated in the limiting groove I.

6. The clutch of claim 5, wherein: The clutch further comprises a pressing plate, the pressing plate is arranged in a manner that it can approach or leave the center sleeve and can relatively rotate, and can press the driving friction plate and the driven friction plate. The pressing plate is provided with a plurality of limiting grooves II corresponding to the driving transmission member, and the other end of the driving transmission member is accommodated in the limiting groove II.

7. The clutch of claim 3, wherein: The driving transmission member and the friction plate backing plate are made of steel material. The thickness of the friction plate backing plate is 1mm-2mm.

8. The clutch of claim 1, wherein: The outer diameter of the driven friction plate is 116mm-118mm.

9. The clutch of claim 3, wherein: The driving transmission member is a column pin, and the driving friction plate transmission groove and the cover transmission groove are semicircular grooves.

10. An engine characterized by: The clutch comprises the clutch according to any one of claims 1-9. The clutch comprises the clutch according to any one of claims 1-9.

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