CN217107924U

CN217107924U - Clutch case assembly suitable for AMT gearbox

Info

Publication number: CN217107924U
Application number: CN202121494436.2U
Authority: CN
Inventors: 胡汝凯; 罗伟钊; 秦忠玉; 甘桂东; 易济武; 黄勇; 张佳; 韦任麒
Original assignee: GUILIN FUDA CO Ltd
Current assignee: GUILIN FUDA CO Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-08-02
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a clutch cover assembly suitable for an AMT gearbox, which comprises a transmission piece (1), a pressure plate rivet (2), a cover part (3), a diaphragm spring (4), a cover rivet (6) and a pressure plate (8); wherein: also comprises a compensation disc spring (5) and a flat pad (7); the compensation dish spring (5) and the flat pad (7) are arranged at the riveting forming position of the cover part (3) and the cover rivet (6), namely, the compensation dish spring (5) and the rivet hole of the cover part (3) are coaxially arranged, the large diameter of the compensation dish spring (5) is contacted with the cover part (3), the small diameter of the compensation dish spring (5) is contacted with the flat pad (7), and the flat pad (7) is arranged above the compensation dish spring (5). The utility model discloses an add the compensation dish spring, provide the compensation power, can effectively solve current clutch case assembly and use the problem that the separation curve produced to discount and leads to the separation power to produce the sudden change and can not match with the AMT gearbox after a period.

Description

Clutch case assembly suitable for AMT gearbox

Technical Field

The utility model belongs to the technical field of clutch case assembly, concretely relates to clutch case assembly suitable for AMT gearbox.

Background

The clutch is a functional component which is assembled between an engine and a gearbox and used for transmitting and cutting off the torque of the engine, and the conventional clutch cover assembly mainly comprises a cover, a pressure plate, a diaphragm spring, a rivet, a supporting ring and other components, and the supporting ring, the diaphragm spring and the cover component are riveted. For example, chinese patent application No. 201420142682.5 discloses a diaphragm spring clutch including a pressure plate, a clutch cover, a diaphragm, a support rivet, and a support ring; the middle part of the membrane is arranged on the supporting rivet; the supporting rings are respectively arranged on the supporting rivets at the two sides of the membrane; the end face, close to the clutch cover, of the large end face of the supporting rivet is provided with a semicircular groove, the cross section of the supporting ring is circular, and after the supporting ring is installed, the supporting ring, close to the large end face of the supporting rivet, is in surface contact with the surface of the semicircular groove. After the cover assembly with the structure is used for a period of time, a certain gap is formed due to inevitable mutual abrasion among parts, so that the separation curve of the clutch is broken, and the broken problem basically has no influence on the traditional manual car stopping model. However, with the development of the industry, the AMT vehicle model gradually becomes the mainstream of the industry, and this discounting phenomenon will seriously affect the operation of the gear shifting control system of the AMT transmission.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome current traditional clutch case assembly and can not match the objective problem of AMT gearbox, provide a no supporting ring structure, can automatic compensation diaphragm spring and the clutch case assembly who is applicable to the AMT gearbox in supporting ring wearing and tearing clearance, can effectively solve because of the clutch case assembly around the use because the mutual motion of spare part, wearing and tearing cause the problem that clutch case assembly separation curve was discounted.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a clutch cover assembly suitable for an AMT gearbox comprises a transmission sheet, a pressure plate rivet, a cover part, a diaphragm spring, a cover rivet and a pressure plate; the pressure plate, the transmission piece and the cover part are assembled together through a pressure plate rivet; the diaphragm spring and the cover part are coaxially arranged, and the skirt part of the diaphragm spring is in contact with the addendum circle of the pressure plate; the cover rivet is used for fastening and connecting the diaphragm spring and the cover part in a riveting forming mode; wherein: also comprises a compensation disc spring and a flat pad; a compensation disc spring positioning hole is formed in the rivet hole of the cover part; the compensation dish spring and the flat pad set up in the riveting department of covering part and lid rivet, promptly the compensation dish spring with cover the coaxial setting in rivet hole of part to the compensation dish spring locating hole on the part of covering is the location benchmark, the major diameter and the lid part contact of compensation dish spring, the minor diameter and the flat pad contact of compensation dish spring, the flat pad sets up in compensation dish spring top.

When the clutch of the utility model is assembled in a factory, the compensating disc spring is in a flattening state, and after the whole automobile is used for a certain distance, certain gaps are generated among the parts due to the mutual abrasion among the diaphragm spring, the cover rivet and the cover part; at the moment, the compensating disc spring is deformed to generate a certain compensating force, so that the clearance between parts is eliminated, and the stable separation curve of the clutch cover assembly is ensured without folding.

The utility model is further improved and explained that the cover rivet connected with the diaphragm spring is of a special-shaped structure (namely, the diameter R of one half of the cover rivet is larger than the diameter R of the other half of the cover rivet), and the side of the cover rivet cap with the larger diameter is provided with a circular arc surface boss; the circular arc boss is connected with the diaphragm spring. The circular arc surface boss is arranged on one side of the cover rivet with a large diameter. The circular arc boss is abutted with the diaphragm spring, and under the action force of the compensation disc spring, the clearance among the diaphragm spring, the cover rivet and the cover part is eliminated, so that the stability of the separation curve of the clutch cover assembly is further ensured, and the phenomenon of folding is avoided.

The utility model discloses explain further, the lid rivet penetrate the rivet hole department of lid part, the shaping end R of lid rivet cooperates with the R semicircle orifice in lid part rivet hole, the shaping end R of lid rivet cooperates with the R semicircle orifice in lid part rivet hole. Half side of lid part rivet hole is major diameter R semicircle orifice, and another half side is minor diameter R semicircle orifice, and corresponding size cooperation can play the mistake proofing effect in assembling process.

The utility model discloses explain further, the flat pad be spring steel sheet, adopt carbonitriding technology to make.

The utility model discloses the further improvement explains, diaphragm spring has set up the ribbing structure toward outer department at compensation dish spring part internal diameter department corresponding window, the ribbing be the circumference and arrange, quantity is unanimous with diaphragm spring window quantity.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model relates to a rationally, simple structure can effectively solve because of clutch case assembly around the use because mutual motion, the wearing and tearing of spare part cause the problem that clutch case assembly separation curve was discounted. The compensation disc spring is additionally arranged, so that certain compensation acting force is generated on the cover part and the diaphragm spring, abrasion gaps generated by movement of the cover part and the diaphragm spring can be eliminated, the stability of a separation curve of the clutch cover assembly is ensured, the phenomenon of breaking is avoided, and the clutch cover assembly is suitable for an AMT gearbox gear shifting control system.

Drawings

Fig. 1 is a partial structural view of a conventional clutch cover assembly.

FIG. 2 is an enlarged partial view of a portion of a conventional clutch cover assembly that wears away after a period of use.

Fig. 3 is a partial structural schematic diagram of a clutch cover assembly according to an embodiment of the present invention.

Fig. 4 is an enlarged view of the wear area and compensating disc spring of the clutch cover assembly of an embodiment of the present invention after a period of use.

Fig. 5 is a schematic structural diagram of a diaphragm spring according to an embodiment of the present invention.

Fig. 6 is a partial enlarged view of the diaphragm spring rib according to the embodiment of the present invention.

Fig. 7 is a front view of a cover part in an embodiment of the invention.

Fig. 8 is a partial enlarged view of a rivet hole of a cover part according to an embodiment of the present invention.

Fig. 9 is a partial side view of a rivet hole in a cover part according to an embodiment of the present invention.

Fig. 10 is a schematic view of a lid rivet structure according to an embodiment of the present invention.

Fig. 11 is a side view of fig. 10.

Fig. 12 is a graph of disengagement of a conventional clutch cover assembly after a period of use.

Fig. 13 is a graph of clutch cover assembly release over time in an embodiment of the present invention.

Description of the drawings:

1-transmission piece, 2-platen rivet, 3-cover part, 301-compensation disc spring positioning hole, 4-diaphragm spring, 401-rib pressing, 5-compensation disc spring, 6-cover rivet, 601-arc boss, 7-flat pad and 8-platen.

Detailed Description

The present invention will be described further with reference to the accompanying drawings so as to provide those skilled in the art with a more complete, accurate and thorough understanding of the present invention.

Example (b):

as shown in fig. 3 and 4, a clutch cover assembly suitable for an AMT gearbox comprises a transmission plate 1, a pressure plate rivet 2, a cover part 3, a diaphragm spring 4, a cover rivet 6 and a pressure plate 8; the pressure plate 8, the transmission piece 1 and the cover part 3 are assembled together through a pressure plate rivet 2; the diaphragm spring 4 and the cover part 3 are coaxially arranged, and the skirt part of the diaphragm spring 4 is in contact with the addendum circle of the pressure plate 8; the cover rivet 6 is used for fastening and connecting the diaphragm spring 4 and the cover part 3 in a riveting forming mode; wherein: also comprises a compensation disc spring 5 and a flat cushion 7; a compensation disc spring positioning hole 301 is formed in the rivet hole of the cover part 3; the compensation dish spring 5 and the flat pad 7 set up in the riveting department of covering part 3 and lid rivet 6, promptly the compensation dish spring 5 with cover part 3's rivet hole coaxial setting to compensation dish spring locating hole 301 on the lid part 3 is the location benchmark, compensation dish spring 5's major diameter and the contact of covering part 3, compensation dish spring 5's minor diameter and flat pad 7 contact, flat pad 7 sets up in compensation dish spring 5 top.

Further, a cover rivet 6 connected with the diaphragm spring 4 is of a special-shaped structure, and an arc surface boss 601 is arranged on one side of a rivet cap of the cover rivet, which is large in diameter; the circular arc surface boss 601 is connected with the diaphragm spring 4.

Further, as shown in fig. 7 to 11, the cover rivet 6 is inserted into the rivet hole of the cover part 3, the forming end R of the cover rivet 6 is fitted to the R semicircular hole of the rivet hole of the cover part 3, and the forming end R of the cover rivet 6 is fitted to the R semicircular hole of the rivet hole of the cover part 3.

Further, as shown in fig. 5 and 6, the diaphragm spring 4 is provided with beads 401 at the positions corresponding to the windows and outward from the positions of compensating the inner diameter of the disc spring portion, and the beads 401 are circumferentially arranged and the number of the beads is the same as that of the diaphragm spring windows.

When the clutch cover assembly of the embodiment is assembled, the compensation disc spring 5 is pressed between the cover part 3 and the flat pad 7 through riveting deformation of the cover rivet 6.

After the clutch cover assembly is used for a period of time, if the traditional clutch cover assembly shown in the attached drawing 1 is assembled, gaps shown in the attached drawing 2 can be ground among the cover rivets, the supporting ring, the diaphragm springs and the cover parts, so that a separation curve of the clutch cover assembly generates a breaking phenomenon shown in the attached drawing 12, and further the gear shifting signal of the AMT gearbox is influenced; when using the clutch case assembly that this embodiment provided, after using a period, although also can produce the wearing and tearing clearance between lid rivet 6, diaphragm spring 4, the lid part 3, nevertheless, compensate dish spring 5 and take place elastic deformation after the wearing and tearing, provide certain elasticity and eliminate this clearance, concrete effect is as shown in figure 4, and the separation curve of clutch case assembly this moment is as shown in figure 13, and basic and new state keep unanimous, consequently, the utility model provides a clutch case assembly keeps unchanged basically at full life cycle separation curve, guarantees AMT gearbox shift signal's execution.

It should be understood that the above-described embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the practice of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description; this is not necessary, nor exhaustive, of all embodiments; and obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. A clutch cover assembly suitable for an AMT (automated mechanical Transmission) gearbox comprises a transmission piece (1), a pressure plate rivet (2), a cover part (3), a diaphragm spring (4), a cover rivet (6) and a pressure plate (8); the pressing plate (8), the transmission piece (1) and the cover part (3) are assembled together through a pressing plate rivet (2); the diaphragm spring (4) and the cover part (3) are coaxially arranged, and the skirt part of the diaphragm spring (4) is in contact with the addendum circle of the pressure plate (8); the cover rivet (6) is used for fastening and connecting the diaphragm spring (4) and the cover part (3) in a riveting forming mode; the method is characterized in that: also comprises a compensation disc spring (5) and a flat pad (7); a compensation disc spring positioning hole (301) is formed in the rivet hole of the cover part (3); the compensation dish spring (5) and flat pad (7) set up in the riveting department of forming of covering part (3) and lid rivet (6), promptly compensation dish spring (5) with cover the coaxial setting of rivet hole of part (3) to compensation dish spring locating hole (301) on the part of covering (3) are the location benchmark, the major diameter and the lid part (3) contact of compensation dish spring (5), the minor diameter and the flat pad (7) contact of compensation dish spring (5), flat pad (7) set up in compensation dish spring (5) top.

2. The clutch cover assembly adapted for an AMT transmission of claim 1, wherein: the cover rivet (6) connected with the diaphragm spring (4) is of a special-shaped structure, and an arc surface boss (601) is arranged on one side of the cover rivet cap with a large diameter; the arc surface boss (601) is connected with the diaphragm spring (4).

3. A clutch cover assembly adapted for an AMT gearbox according to claim 1 or 2, wherein: the cover rivet (6) penetrates through the rivet hole of the cover part (3), the forming end R of the cover rivet (6) is matched with the R semicircular hole of the rivet hole of the cover part (3), and the forming end R of the cover rivet (6) is matched with the R semicircular hole of the rivet hole of the cover part (3).

4. The clutch cover assembly suitable for the AMT gearbox according to the claim 1, wherein the flat gasket (7) is a spring steel sheet and is manufactured by a carbonitriding process.

5. The clutch cover assembly suitable for the AMT gearbox according to the claim 1, wherein the diaphragm spring (4) is provided with pressing ribs (401) at the position of compensating the inner diameter of the disc spring part corresponding to the outward position of the window, and the pressing ribs (401) are arranged in a circumference way, and the number of the pressing ribs is consistent with the number of the diaphragm spring windows.