Clutch cover assembly

Abstract

The clutch cover assembly comprises a pressing cover, a diaphragm spring, a pull ring seat, a transmission piece set and a pressing disc, the pressing cover is provided with at least four clamping groove parts which are evenly distributed on the circumference, the pressing disc is correspondingly provided with at least four protruding parts, the protruding parts are installed in the clamping groove parts, the pressing cover is provided with an installation part, and the installation part is clamped into a gap between every two adjacent protruding parts. The surface of the mounting part is provided with a wave-shaped reinforcing groove, the deformation resistance is enhanced, the transmission stability is improved, the multiple transmission pieces form a transmission piece set, the torque transmission uniformity is improved, the U-shaped clamp anti-vibration design is matched, damage in the transportation process is reduced, the protruding part is mounted in the clamping groove part, the wave-shaped reinforcing groove is matched, the torsional rigidity of the gland is improved, and the service life of the gland is prolonged. The fulcrum part uniformly distributes pressure and cooperates with the supporting ring to prevent local slipping and improve the torque capacity of the clutch.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile clutch, specifically relates to a clutch cover assembly. BACKGROUND

[0002] The traditional clutch cover assembly is prone to problems such as compression force recession, transmission sheet fatigue fracture and sheet burning under high temperature and high load conditions, in the prior art, the elastic deformation capacity of the transmission sheet set is insufficient, leading to uneven torque transmission, and the matching structure of the compression plate and the compression cover is simple, which can easily cause the diaphragm spring to deviate and accelerate wear, therefore, there is an urgent need for a clutch cover assembly capable of improving torque capacity and optimizing force transmission stability. SUMMARY

[0003] To solve the above problems, the utility model provides a clutch cover assembly, specifically includes compression cover, diaphragm spring, pull ring seat, transmission sheet set and compression plate, its characterized in that: the compression cover is provided with at least four circumferentially uniformly distributed clamping groove parts, the compression plate is correspondingly provided with at least four convex parts, and the convex parts are installed in the clamping groove parts.

[0004] The compression cover is provided with a mounting part clamped into the gap between the adjacent two convex parts, and the surface of the mounting part is provided with a wave-shaped reinforcing groove to enhance the deformation resistance.

[0005] The number of the transmission sheet set is consistent with the number of the convex parts, each set of the transmission sheet set comprises at least four elastic transmission sheets, one end of the elastic transmission sheets is fixed to the convex part through a first screw, the rod part of the first screw is larger in diameter than the threaded part, and the other end of the elastic transmission sheets is fixed to the compression cover through a second screw.

[0006] The compression cover is provided with circumferentially uniformly distributed positioning protrusions and limiting protrusions for installing a support ring and limiting the support ring.

[0007] Further technical solutions, the surface of the compression plate is provided with a fulcrum part.

[0008] Further technical solutions, the fulcrum part on the surface of the compression plate is an arc-shaped protrusion, and there are at least eight arc-shaped protrusions uniformly distributed along the circumference to optimize the pressure distribution of the diaphragm spring.

[0009] Further technical solutions, the pull ring seat is provided with a lock ring.

[0010] Further technical solutions, the middle part of the diaphragm spring is detachably connected with the pull ring seat through a fixing ring, and the fixing ring is an open elastic ring.

[0011] Further technical solutions, the outer ring of the support ring is provided with a wear-resistant layer.

[0012] Further technical solutions, a detachable U-shaped clamp is arranged between the head of the first screw and the compression cover.

[0013] Further technical effects, the diaphragm spring is a thickness gradient design, the outer ring thickness is greater than the inner ring thickness.

[0014] In summary, the utility model has the following beneficial effects:

[0015] 1. Transmission stability is improved, a plurality of transmission sheets form a transmission sheet group, torque transmission uniformity is improved, U-shaped clamps are designed to prevent vibration, and damage during transportation is reduced.

[0016] 2. The protruding part is installed into the clamping groove part, and the wave-shaped reinforcing groove is matched, so that the torsional stiffness of the gland is improved.

[0017] 3. The fulcrum part uniformly distributes pressure, and the supporting ring is matched to prevent local slipping and improve the torque capacity of the clutch. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is the first three-dimensional schematic view of the clutch cover assembly of the present application;

[0020] Figure 2 is the second three-dimensional schematic view of the clutch cover assembly of the present application;

[0021] Figure 3 is the installation and matching schematic view of the gland and the transmission sheet group of the clutch cover assembly of the present application;

[0022] Figure 4 is the installation and matching schematic view of the diaphragm spring and the pressure plate of the clutch cover assembly of the present application;

[0023] Figure 5 is the installation and matching schematic view of the transmission sheet group and the pressure plate of the clutch cover assembly of the present application.

[0024] In the drawings: 101, positioning protrusion; 102, reinforcing groove; 104, mounting hole; 105, clamping groove part; 106, mounting part; 107, limiting protrusion; 200, diaphragm spring; 300, pull ring seat; 301, fixed ring; 302, lock ring; 400, transmission sheet group; 401, first screw; 402, U-shaped clamp; 403, second screw; 500, pressure plate; 501, fulcrum part; 502, protruding part; 600, supporting ring. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the drawings.

[0026] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure aspects of the present application.

[0027] In addition, in the description of the present application, it needs to be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection, or can be communication; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] As shown in Figures 1-5 A clutch cover assembly, comprising a gland 100, a diaphragm spring 200, a pull ring seat 300, a transmission sheet group 400 and a pressure plate 500, the gland 100 is provided with four circumferentially uniformly distributed clamping groove parts 105, and the pressure plate 500 is provided with four circumferentially uniformly distributed protruding parts 502, the protruding parts 502 are installed in the clamping groove parts 105.

[0031] The gland 100 is also provided with an installation part 106, which is clamped into the gap between the adjacent two protruding parts 502.

[0032] Beneficially, the transmission piece group 400 is provided with four groups, respectively located between the protruding part 502 and the clamping groove part 105, and each group of transmission piece group 400 is composed of at least four transmission pieces, the transmission piece group 400 can transmit the torque of the gland to the pressure plate 500, when the middle part of the diaphragm spring 200 is pulled up by the pull ring seat, the pressure plate 500 is separated from the friction plate, close to the gland 100, the transmission piece group 400 is deformed, one end of the transmission piece group is fixed on the protruding part 502 through the first screw 401, the first screw 401 is divided into three parts, one part is the threaded part, which is used to insert into the protruding part 502, one part is the middle rod part, the diameter of the rod part is larger than the threaded part to form a shoulder step, the rod part is used to press the transmission piece group, the transmission piece group is pressed on the protruding part by the pressing piece, the third part is the circular head part, the rod part passes through the gland 100, so that the head part of the screw is pressed on the gland, and the U-shaped clamp 402 is arranged between the head part and the gland 100, the U-shaped clamp 402 can play a protection role to keep the pressure plate during transportation, prevent vibration during transportation, damage to the pressure plate and the transmission piece group 400, and facilitate the assembly of the driven plate, when the clutch cover assembly is installed, the U-shaped clamp can be pulled out, the other end of the transmission piece group 400 is fixed on the gland 100 through the second screw 403, and the transmission piece group 400 is arranged obliquely.

[0033] In one embodiment, the gland 100 is provided with a plurality of positioning protrusions 101 and limiting protrusions 107 uniformly distributed in the circumference for installing the support ring 600, the support ring is installed between the positioning protrusions 101 and the limiting protrusions 107 to limit the support ring 600, the outer ring of the support ring 600 is coated with a wear-resistant layer, and the wear-resistant layer can be selected from a molybdenum disulfide wear-resistant layer. During operation of the clutch, the support ring helps to ensure that the pressure exerted by the diaphragm spring on the gland is uniform, which is crucial for achieving smooth power transmission. If the pressure distribution is uneven, it may cause the clutch to slip, accelerate wear, or other failure problems, thereby increasing the stability of the diaphragm spring during operation and enabling the clutch to maintain good performance under high speed or severe working conditions. By guiding the movement of the diaphragm spring, the support ring can reduce direct contact and friction between the diaphragm spring and other components, which not only reduces the wear rate of these components but also ensures the smoothness of clutch engagement and disengagement, thereby improving the service life of the entire clutch system.

[0034] In one embodiment, the gland 100 is thickened to a thickness of 7.0 mm, and the material can be selected from a hot-rolled steel plate to strengthen the structural strength of the gland 100. The material of the pressure plate 500 can be cast iron with the addition of alloy elements such as copper, chromium, nickel, and molybdenum to improve the overall strength and hardness of the pressure plate 500, enhance wear resistance and heat fatigue resistance, and thicken the pressure plate to improve its heat capacity, thereby improving the service life of the entire clutch system.

[0035] The mounting portion 106 is provided with a plurality of mounting holes 104 evenly distributed, for fixing the assembly to the engine flywheel.

[0036] The diaphragm spring 200 is installed between the gland 100 and the pressure plate 500, and the middle part is connected to the pull ring seat 300 through the fixing ring 301. In an embodiment, the pull ring seat 300 is made of hot-rolled steel plate, and the surface is treated by carbonitriding process to enhance its wear resistance and reduce the friction loss of the release bearing. The pull ring seat 300 is provided with a locking ring 302 for locking the release bearing. The fixing ring 301 is detachably connected to the pull ring seat 300, and the fixing ring 301 is an open elastic ring.

[0037] In an embodiment, the mounting portion 106 is provided with a wave-shaped reinforcing groove 102 for improving the structural strength and anti-deformation ability of the mounting portion.

[0038] The pressure plate 500 is provided with a plurality of fulcrum portions 501 evenly distributed on the surface, for providing a fulcrum effect when the diaphragm spring 200 is subjected to tension or pressure, and driving the pressure plate 500 to press or separate from the friction plate.

[0039] The fixing ring 301 is arranged in the middle part of the diaphragm spring 200, for mounting the pull ring seat 300 in the middle part of the diaphragm spring 200 and forming a detachable connection with the pull ring seat 300.

[0040] In an embodiment, the taper angle of the diaphragm spring 200 is between 12.5° and 13°, and the material can be selected from 51CrV4 spring steel with a thickness of 5.9mm. In another embodiment, the thickness of the diaphragm spring 200 is designed to be gradually changed, with the outer ring being thick and the inner ring being thin. The weight is reduced while the stiffness remains unchanged. Such design can reduce the weight of the diaphragm spring, which is advantageous.

[0041] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0042] The above only describes the embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A clutch cover assembly comprising a gland (100), a diaphragm spring (200), a pull ring seat (300), a set of drive plates (400) and a pressure plate (500), characterized in that: The grommet (100) is provided with at least four circumferentially uniformly distributed clamping groove portions (105), and the pressing plate (500) is correspondingly provided with at least four protruding portions (502) which are installed in the clamping groove portions (105); The grommet (100) is provided with an installation portion (106) which is clamped into the gap between two adjacent protruding portions (502), and the surface of the installation portion (106) is provided with a wavy reinforcing groove (102); The number of the transmission sheet groups (400) is consistent with the number of the protruding portions, each of the transmission sheet groups (400) comprises at least four elastic transmission sheets, one end of each of the elastic transmission sheets is fixed to the protruding portion (502) through a first screw (401), the rod portion of the first screw (401) has a diameter larger than that of the threaded portion, and the other end of each of the elastic transmission sheets is fixed to the grommet (100) through a second screw (403); The grommet (100) is provided with circumferentially uniformly distributed positioning protrusions (101) and limiting protrusions (107) for installing a support ring (600) and limiting the support ring (600).

2. The clutch cover assembly of claim 1, wherein: The pressing plate (500) is provided with fulcrum portions (501) on the surface thereof.

3. The clutch cover assembly of claim 2, wherein: The fulcrum portions (501) on the surface of the pressing plate (500) are arc-shaped protrusions which are circumferentially uniformly distributed and have at least eight.

4. The clutch cover assembly of claim 1, wherein: The pull ring seat (300) is provided with a locking ring (302).

5. The clutch cover assembly of claim 4, wherein: The diaphragm spring (200) is detachably connected to the pull ring seat (300) through a fixing ring (301), and the fixing ring (301) is an open elastic ring.

6. The clutch cover assembly of claim 1, wherein: The outer ring of the support ring (600) is coated with a wear-resistant layer.

7. The clutch cover assembly of claim 1, wherein: The head of the first screw (401) is detachably provided with a U-shaped clamp (402) between the grommet (100).

8. The clutch cover assembly of claim 1, wherein: The diaphragm spring (200) is designed with a gradually changing thickness, and the outer ring has a larger thickness than the inner ring.

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