CN218935076U

CN218935076U - Dry friction plate for clutch

Info

Publication number: CN218935076U
Application number: CN202320086464.3U
Authority: CN
Inventors: 张银华; 陈苏仙; 沈达; 王国金; 吴华忠
Original assignee: HANGZHOU XIAOSHAN HONGQI FRICTION MATERIAL CO Ltd
Current assignee: HANGZHOU XIAOSHAN HONGQI FRICTION MATERIAL CO Ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-04-28
Anticipated expiration: 2033-01-30

Abstract

The utility model relates to a dry friction plate for a clutch, which belongs to the technical field of clutches and comprises a driving shaft, wherein a shaft sleeve which is mutually parallel-key nested and fixed with the driving shaft is arranged on the driving shaft, a brake piston is arranged at the front end of the shaft sleeve, a dry friction plate is arranged between the brake piston and the shaft sleeve, a plurality of guide pins which are mutually inserted and embedded with the dry friction plate and are fixedly connected with the shaft sleeve in a limiting manner are arranged on the shaft sleeve, a protective shell which is mutually sleeved with the shaft sleeve is arranged on the outer side of the dry friction plate, an adjusting cover is arranged between the brake piston and the protective shell, a tooth ring sleeve is arranged between the adjusting cover and the brake piston, and a disc-shaped diaphragm spring which is mutually inserted with the adjusting cover is arranged between the front end of the tooth ring sleeve and the brake piston. Has the characteristics of compact structure, small volume and good performance stability. Solves the problems of easy cracking and peeling at high speed.

Description

Dry friction plate for clutch

Technical Field

The utility model relates to the technical field of clutches, in particular to a dry friction plate for a clutch.

Background

The clutch is an important part for controlling operation in the power machine, and the friction clutch is the most widely applied clutch and the most historic clutch, and basically consists of four parts of a driving part, a driven part, a pressing mechanism and an operating mechanism. The driving and driven parts and the pressing mechanism are basic structures for ensuring that the clutch is in an engaged state and can transmit power, and the operating mechanism of the clutch is mainly a device for disengaging the clutch.

Friction plate clutches have found wide application due to their relatively low cost and reliable performance. In particular to a friction plate clutch which is commonly used in agricultural machinery because the cost of the whole machine is low and the work adjustment is bad. However, the existing friction plate clutch, especially the dry friction plate clutch, has a complex structure and a large volume, so that the assembly time is long, the material cost is high, and the final total production cost is high.

Disclosure of Invention

The utility model mainly solves the defects of complex structure, large volume and poor performance stability in the prior art, and provides a dry friction plate for a clutch, which has the characteristics of compact structure, small volume and good performance stability. Solves the problems of easy cracking and peeling at high speed.

The technical problems of the utility model are mainly solved by the following technical proposal:

a single-sheet dry friction plate for a clutch comprises a driving shaft, wherein a shaft sleeve which is connected and fixed with the driving shaft in a flat key type nesting manner is arranged on the driving shaft, a brake piston is arranged at the front end of the shaft sleeve, a dry friction plate is arranged between the brake piston and the shaft sleeve, a plurality of guide pins which are mutually inserted and limited and connected with the dry friction plate are arranged on the shaft sleeve, a protective shell sleeved with the shaft sleeve is arranged on the outer side of the dry friction plate, an adjusting cover is arranged between the brake piston and the protective shell, a tooth ring sleeve is arranged between the adjusting cover and the brake piston, and a disc-shaped diaphragm spring which is mutually inserted with the adjusting cover is arranged between the front end of the tooth ring sleeve and the brake piston.

Preferably, the dry friction plate comprises a core plate, wherein an assembly inner hole is formed in the core plate, friction linings integrally bonded with the core plate are arranged on two sides of the core plate, and a plurality of guide pin holes which are distributed in an equidistant annular mode and are in embedded limiting connection with the guide pins are formed between the friction linings and the assembly inner hole.

Preferably, the end face of the friction lining is provided with an oil guiding groove, and the oil guiding groove has a 12×12 bidirectional parallel groove structure.

Preferably, the distance between the oil guide grooves is 18mm, the groove width is 2-2.2 mm, and the groove depth is 0.3-0.5 mm.

Preferably, a compression ring sleeve is arranged between the outer ring of the brake piston and the inner hole of the gear ring sleeve, a stop clamping ring movably and limitedly contacted with the compression ring sleeve is arranged at the rear end of the outer ring of the brake piston, and the stop clamping ring is fixedly clamped with the brake piston in a slot type insertion and nesting manner.

Preferably, a plurality of steel balls which are distributed in a ring shape and are sleeved with the compression ring sleeve in a penetrating manner are arranged in the compression ring sleeve, and when the compression ring sleeve is in braking reset process of the disc diaphragm spring and the braking piston, the clamping grooves on the braking piston and the gear sleeve are respectively stopped.

Preferably, a brake shaft sleeved with the dry friction plate is arranged in the brake piston, the brake shaft is connected and fixed with the brake piston in a flat key type nested manner, and a bearing is arranged between the front end of the brake shaft and the shaft sleeve.

Preferably, a pressing disc which is inserted into the inner wall of the protective shell and sleeved with the outer ring of the brake piston is arranged between the adjusting cover and the protective shell, and the pressing disc and the adjusting cover are connected and fixed by adopting a plurality of rivets which are distributed in an equidistant annular mode.

The utility model can achieve the following effects:

compared with the prior art, the dry friction plate for the clutch has the characteristics of compact structure, small volume and good performance stability. Solves the problems of easy cracking and peeling at high speed.

Drawings

Fig. 1 is a cross-sectional view of the structure of the present utility model.

Fig. 2 is a schematic structural view of a dry friction plate according to the present utility model.

Fig. 3 is a structural cross-sectional view of the dry friction plate in the present utility model.

In the figure: the device comprises a driving shaft 1, a shaft sleeve 2, a guide pin 3, a protective shell 4, a dry friction plate 5, a compression disc 6, a disc diaphragm spring 7, an adjusting cover 8, a gear ring sleeve 9, a compression ring sleeve 10, a brake piston 11, a brake shaft 12, a stop clamp ring 13, a steel ball 14, a bearing 15, a rivet 16, a friction lining 17, an oil guide groove 18, a core plate 19, an assembly inner hole 20 and a guide pin hole 21.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples: as shown in fig. 1, 2 and 3, a dry friction plate for a clutch comprises a driving shaft 1, wherein a shaft sleeve 2 which is in flat key type nested connection and fixed with the driving shaft 1 is arranged on the driving shaft 1, a brake piston 11 is arranged at the front end of the shaft sleeve 2, a brake shaft 12 which is sleeved with the dry friction plate 5 is arranged in the brake piston 11, the brake shaft 12 is in flat key type nested connection and fixed with the brake piston 11, and a bearing 15 is arranged between the front end of the brake shaft 12 and the shaft sleeve 2. Be equipped with dry friction disc 5 between brake piston 11 and axle sleeve 2, be equipped with 4 guide pins 3 fixed with dry friction disc 5 looks insert limit connection on the axle sleeve 2, the dry friction disc 5 outside is equipped with the protective housing 4 that cup joints mutually with axle sleeve 2, be equipped with between brake piston 11 and protective housing 4 and adjust lid 8, be equipped with between adjustment lid 8 and protective housing 4 and insert mutually with protective housing 4 inner wall and with brake piston 11 outer lane looks sheathed compact disc 6, it is fixed to adopt 6 rivets 16 that are equidistant annular distribution to connect between compact disc 6 and the adjustment lid 8. A gear ring sleeve 9 is arranged between the adjusting cover 8 and the brake piston 11, and a disc diaphragm spring 7 which is inserted with the adjusting cover 8 is arranged between the front end of the gear ring sleeve 9 and the brake piston 11. A compression ring sleeve 10 is arranged between the outer ring of the brake piston 11 and the inner hole of the gear ring sleeve 9, a stop clamping ring 13 which is movably and limitedly contacted with the compression ring sleeve 10 is arranged at the rear end of the outer ring of the brake piston 11, and the stop clamping ring 13 is fixedly clamped with the brake piston 11 in a slot type inserting and nesting manner. The compression ring sleeve 10 is internally provided with a plurality of steel balls 14 which are distributed in a ring shape and are sleeved with the compression ring sleeve 10 in a penetrating way, and when the compression ring sleeve 10 is used for stopping clamping grooves on the brake piston 11 and the gear ring sleeve 9 respectively in the braking resetting process of the disc diaphragm spring 7 and the brake piston 11.

The dry friction plate 5 comprises a core plate 19, wherein an assembly inner hole 20 is formed in the core plate 19, friction linings 17 integrally bonded with the core plate 19 are arranged on two sides of the core plate 19, and 4 guide pin holes 21 which are distributed in an equidistant annular mode and are in embedded limiting connection with the guide pins 3 are formed between the friction linings 17 and the assembly inner hole 20. The end face of the friction lining 17 is provided with an oil guiding groove 18, and the oil guiding groove 18 has a 12×12 bidirectional parallel groove structure. The oil guiding grooves 18 have a groove spacing of 18mm, a groove width of 2.1mm and a groove depth of 0.4mm.

In summary, the dry friction plate for the clutch has the characteristics of compact structure, small volume and good performance stability. Solves the problems of easy cracking and peeling at high speed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In summary, the foregoing description is only one embodiment of the present utility model, but the present utility model is not limited to the above embodiments, and any changes or modifications within the scope of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. A dry friction plate for a clutch, characterized by: including drive shaft (1), drive shaft (1) on be equipped with drive shaft (1) looks flat key nested fixed axle sleeve (2), axle sleeve (2) front end be equipped with brake piston (11), brake piston (11) and axle sleeve (2) between be equipped with dry friction disc (5), axle sleeve (2) on be equipped with a plurality of guide pins (3) fixed with dry friction disc (5) looks embedded spacing connection, dry friction disc (5) outside be equipped with axle sleeve (2) protective housing (4) mutually, brake piston (11) on be equipped with between protective housing (4) and adjust lid (8), adjustment lid (8) and brake piston (11) between be equipped with tooth ring cover (9), tooth ring cover (9) front end and brake piston (11) between be equipped with the disc spring (7) of adjusting lid (8) looks grafting.

2. A dry friction plate for a clutch as described in claim 1 wherein: the dry friction plate (5) comprises a core plate (19), wherein an assembly inner hole (20) is formed in the core plate (19), friction linings (17) integrally bonded with the core plate (19) are arranged on two sides of the core plate (19), and a plurality of guide pin holes (21) which are distributed in an equidistant annular mode and are in embedded limiting connection with the guide pins (3) are formed between the friction linings (17) and the assembly inner hole (20).

3. A dry friction plate for a clutch as described in claim 2 wherein: the end face of the friction lining (17) is provided with an oil guiding groove (18), and the oil guiding groove (18) is of a 12 multiplied by 12 bidirectional parallel groove structure.

4. A dry friction plate for a clutch as described in claim 3 wherein: the distance between the grooves of the oil guide groove (18) is 18mm, the width of the groove is 2-2.2 mm, and the depth of the groove is 0.3-0.5 mm.

5. A dry friction plate for a clutch as described in claim 1 wherein: the brake piston is characterized in that a compression ring sleeve (10) is arranged between the outer ring of the brake piston (11) and the inner hole of the gear ring sleeve (9), a stop clamp ring (13) which is movably and limitedly contacted with the compression ring sleeve (10) is arranged at the rear end of the outer ring of the brake piston (11), and the stop clamp ring (13) and the brake piston (11) are in clamping groove type insertion and nesting connection.

6. A dry friction plate for a clutch as described in claim 5 wherein: the compression ring sleeve (10) is internally provided with a plurality of steel balls (14) which are annularly distributed and are sleeved with the compression ring sleeve (10) in a penetrating mode, and when the compression ring sleeve (10) stops the clamping grooves on the brake piston (11) and the gear ring sleeve (9) respectively in the braking resetting process of the disc diaphragm spring (7) and the brake piston (11).

7. A dry friction plate for a clutch as described in claim 1 wherein: the brake piston (11) is internally provided with a brake shaft (12) sleeved with the dry friction plate (5), the brake shaft (12) is connected and fixed with the brake piston (11) in a flat key type nested manner, and a bearing (15) is arranged between the front end of the brake shaft (12) and the shaft sleeve (2).

8. A dry friction plate for a clutch as described in claim 1 wherein: the adjusting cover (8) and the protecting shell (4) are provided with a pressing disc (6) which is inserted into the inner wall of the protecting shell (4) and sleeved with the outer ring of the brake piston (11), and the pressing disc (6) and the adjusting cover (8) are connected and fixed by adopting a plurality of rivets (16) which are distributed in an equidistant annular mode.