A clutch and driven disc assembly thereof

Abstract

The present invention relates to the technical field of clutches, and discloses a clutch and a driven disc assembly thereof, wherein the driven disc assembly comprises: a corrugated plate disposed on an edge of the driven disc, the corrugated plate being provided with a first connecting hole; a first friction plate disposed on one side of the corrugated plate, the interior of the corrugated plate being provided with a hollow portion, a second connecting hole being provided on a wall of the hollow portion adjacent to the corrugated plate; a second friction plate disposed on the other side of the corrugated plate being provided with a third connecting hole; a connecting member passing through the third connecting hole, the first connecting hole, and the second connecting hole in sequence, the second friction plate, the corrugated plate, and the first friction plate being connected by the connecting member, a gap being formed between an edge of the connecting member located in the hollow portion and a wall opposite the connecting member. The present invention can prevent the connecting member from contacting the pressure plate when the friction plate is severely worn, thereby reducing the risk of damage to the pressure plate. Furthermore, due to the provision of the hollow portion, the pressure plate may slip with the driven disc assembly, thereby prompting the driver to promptly replace the clutch driven disc assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of clutches, in particular to a driven disc assembly. Background Art

[0002] Currently, the clutch's driven disc is equipped with friction plates, which are used to cooperate with the pressure plate. Generally speaking, two friction plates are clamped on a corrugated plate, and the three are connected by screws. To facilitate the installation of the screws, through-holes are provided in the friction plates that penetrate the entire friction plate in the thickness direction, and the screws pass through the through-holes to achieve the connection.

[0003] However, during the use of the clutch, the friction plate will be continuously worn. When the wear is severe, the pressure plate will directly contact the screws, causing damage to the pressure plate. Summary of the Invention

[0004] The purpose of the present invention is to provide a clutch and a driven plate assembly thereof, which can prevent the screw from contacting the pressure plate after the friction plate of the driven plate is worn, thereby reducing the risk of damage to the pressure plate.

[0005] In order to achieve the above object, the present invention provides a driven disc assembly of a clutch, comprising:

[0006] driven disc;

[0007] a corrugated plate, arranged on the edge of the driven disc, and provided with a first connecting hole;

[0008] a first friction plate having a mating surface for mating with the pressure plate, the first friction plate being disposed on one side of the corrugated plate, the interior of the first friction plate being provided with a hollow portion, and a second connecting hole being provided on a wall of the hollow portion adjacent to the corrugated plate;

[0009] a second friction plate, disposed on the other side of the corrugated plate, and having a third connecting hole;

[0010] A connecting member passes through the third connecting hole, the first connecting hole and the second connecting hole in sequence. The second friction plate, the corrugated plate and the first friction plate are connected through the connecting member. There is a gap between the edge of the connecting member in the hollow portion and the wall opposite to the connecting member.

[0011] In some embodiments of the present application:

[0012] There are multiple hollow portions, and each of the hollow portions is arranged on the first friction plate around the driven disk array.

[0013] In some embodiments of the present application:

[0014] A reinforcement column is provided in the hollow portion, and two ends of the reinforcement column are respectively connected to the walls on two opposite sides of the hollow portion.

[0015] In some embodiments of the present application:

[0016] The first connecting hole, the second connecting hole and the third connecting hole are threaded holes, and the connecting member is a screw that can be matched with the first connecting hole, the second connecting hole and the third connecting hole respectively.

[0017] In some embodiments of the present application:

[0018] The connecting member includes a head and a connecting portion, the head is arranged at one end of the connecting portion, the connecting member is threadedly connected to the first connecting hole, the second connecting hole, and the third connecting hole respectively, and the head is located on the side of the corrugated plate away from the first friction plate.

[0019] In some embodiments of the present application:

[0020] An end surface of the connecting portion away from the head portion is flush with a wall of the hollow portion.

[0021] In some embodiments of the present application:

[0022] The second friction plate is further provided with a receiving groove, the third connecting hole is provided in the receiving groove, and the receiving groove and the third connecting hole pass through the second friction plate together.

[0023] In some embodiments of the present application:

[0024] There is a certain distance between the surface of the second friction plate facing away from the corrugated plate and the surface of the connecting member located in the accommodating groove, so that the head of the connecting member is completely placed in the accommodating groove.

[0025] In some embodiments of the present application:

[0026] The diameter of the slot opening of the accommodating slot is larger than the diameter of the slot bottom of the accommodating slot.

[0027] The present invention also provides a clutch, comprising the driven disc assembly as described in any of the above paragraphs.

[0028] The present invention provides a clutch and a driven disc assembly thereof, which have the following advantages compared with the prior art:

[0029] The driven disc assembly of the clutch of the present invention includes a driven disc, a corrugated plate, a first friction plate, a second friction plate, and a connecting member. The corrugated plate is mounted on the driven disc, and the first friction plate and the second friction plate are respectively arranged on both sides of the corrugated plate. The first friction plate, the corrugated plate, and the second friction plate are connected by a connecting member. The first friction plate is provided with a hollow portion, and the second connecting hole of the first friction plate for mating with the connecting member is provided on the wall of the hollow portion near the corrugated plate. With such a structure, the mating surface between the first friction plate and the pressure plate can be provided with no hole. When the first friction plate is severely worn, the pressure plate can only be worn to the point where the hollow portion is exposed. This will reduce the contact area with the pressure plate, resulting in slippage between the pressure plate and the driven disc assembly. On the one hand, it can prevent the connecting member from contacting the pressure plate, reducing the risk of damage to the pressure plate. On the other hand, it can also prompt the driver to replace the clutch driven disc assembly in a timely manner.

[0030] The clutch of the present invention includes the above-mentioned driven plate assembly. When the friction plate is severely worn, it can prevent the connecting parts from contacting the pressure plate, reducing the risk of damage to the pressure plate. On the other hand, due to the setting of the hollow part, the pressure plate will slip with the driven plate assembly, which can also remind the driver to replace the clutch driven plate assembly in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional view of a driven disc assembly according to an embodiment of the present invention.

[0032] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0033] Figure 3 It is a front view of a driven disc assembly according to an embodiment of the present invention.

[0034] In the figure, 1, driven plate; 2, corrugated plate; 3, first friction plate; 4, second friction plate; 5, connecting piece; 21, first connecting hole; 31, mating surface; 32, hollow portion; 33, second connecting hole; 34, reinforcing column; 41, third connecting hole; 42, accommodating groove; 51, head; 52, connecting portion. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0039] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Please refer to Figure 1-Figure 3 A driven disc assembly of a clutch in a preferred embodiment of the present invention includes: a driven disc 1, a corrugated plate 2, a first friction plate 3, a second friction plate 4 and a connecting member 5.

[0041] The corrugated plate 2 is arranged on the edge of the driven plate 1 , and a first connecting hole 21 is provided on the corrugated plate 2 .

[0042] The first friction plate 3 has a mating surface 31 for mating with the pressure plate. The first friction plate 3 is arranged on one side of the corrugated plate 2. A hollow portion 32 is provided inside the first friction plate 3. A second connecting hole 33 is provided on the wall of the hollow portion 32 close to the corrugated plate 2.

[0043] The second friction plate 4 is provided on the other side of the corrugated plate 2 , and a third connecting hole 41 is provided on the second friction plate 4 .

[0044] The connecting member 5 passes through the third connecting hole 41, the first connecting hole 21 and the second connecting hole 33 in sequence. The second friction plate 4, the corrugated plate 2 and the first friction plate 3 are connected by the connecting member 5. There is a gap between the edge of the connecting member 5 located in the hollow portion 32 and the wall opposite to the connecting member 5.

[0045] The driven disc assembly of the clutch of this embodiment is provided with a hollow portion 32 to separate the connecting member 5 from the mating surface 31, preventing the connecting member 5 from protruding from the surface of the mating surface 31. This structure allows the mating surface 31 between the first friction plate 3 and the pressure plate to be free of holes. When the first friction plate 3 is severely worn, the pressure plate will only wear to the point where the hollow portion 32 is exposed. This reduces the contact area with the pressure plate and can cause slippage between the pressure plate and the driven disc assembly. This prevents the connecting member 5 from contacting the pressure plate, reducing the risk of damage to the pressure plate. It also reminds the driver to replace the clutch driven disc assembly promptly.

[0046] In this embodiment, a plurality of hollow portions 32 are provided, and the hollow portions 32 are arranged in an array on the first friction plate 3 around the driven disc 1 .

[0047] The hollow portion 32 may be in the shape of a strip pointing toward the center of the driven disk 1 , and a plurality of hollow portions 32 may be radial. The hollow portion 32 may also be arranged in an annular structure to form the hollow portion 32 .

[0048] A reinforcement column 34 is provided in the hollow portion 32 , and two ends of the reinforcement column 34 are respectively connected to the walls on two opposite sides of the hollow portion 32 .

[0049] The reinforcement column 34 can be a portion of the driven plate 1 that is not hollowed out and is disposed between the two hollowed-out portions 32, or it can be a separate pillar. The reinforcement column 34 serves to increase the strength of the first friction plate 3 and compensate for the strength loss caused by the hollowed-out portions 32.

[0050] The first connecting hole 21 , the second connecting hole 33 and the third connecting hole 41 are threaded holes, and the connecting member 5 is a screw that can be matched with the first connecting hole 21 , the second connecting hole 33 and the third connecting hole 41 respectively.

[0051] When assembling the first friction plate 3, the second friction plate 4 and the corrugated plate 2, the connecting piece 5 can be tightened on one side of the second friction plate 4. When the connecting piece 5 is tightened into place, the first connecting hole 21, the second connecting hole 33 and the third connecting hole 41 cooperate with the connecting piece 5 at the same time to achieve the connection and fixation of the first friction plate 3, the second friction plate 4 and the corrugated plate 2.

[0052] The connecting member 5 includes a head 51 and a connecting portion 52. The head 51 is arranged at one end of the connecting portion 52. The connecting member 5 is threadedly connected to the first connecting hole 21, the second connecting hole 33, and the third connecting hole 41 respectively. The head 51 is located on the side of the corrugated plate 2 away from the first friction plate 3.

[0053] The connecting portion 52 is provided with threads and is threadedly connected to the first connecting hole 21 , the second connecting hole 33 , and the third connecting hole 41 .

[0054] Since the hollow portion 32 is located inside the first friction plate 3 , the head portion 51 can only be located on one side of the second friction plate 4 to ensure normal connection of the connecting member 5 when assembling the first friction plate 3 , the second friction plate 4 and the corrugated plate.

[0055] In this embodiment, the end surface of the connecting portion 52 away from the head 51 is flush with the wall of the hollow portion 32. This arrangement prevents the pressure plate from contacting the connecting member 5 when the first friction plate 3 wears to the hollow portion 32, thereby preventing the connecting member 5 from damaging the pressure plate.

[0056] The second friction plate 4 is further provided with an accommodating groove 42 , and the third connecting hole 41 is provided in the accommodating groove 42 . The accommodating groove 42 and the third connecting hole 41 both pass through the second friction plate 4 .

[0057] The arrangement of the accommodating groove 42 enables the head 51 of the connecting member 5 to be located in the accommodating groove 42 .

[0058] There is a certain distance between the surface of the second friction plate 4 facing away from the corrugated plate 2 and the surface of the connecting member 5 located in the accommodating groove 42 , so that the head 51 of the connecting member 5 is completely placed in the accommodating groove 42 .

[0059] With such a structure, the head 51 of the connecting member 5 is completely placed in the receiving groove 42 , and the head 51 of the connecting member 5 does not protrude from the receiving groove 42 .

[0060] The diameter of the slot opening of the accommodating slot 42 is larger than the diameter of the bottom of the accommodating slot 42. The accommodating slot 42 is trumpet-shaped, which makes it easier for the staff to screw in the connecting piece 5.

[0061] This embodiment also provides a clutch, including the above-mentioned driven plate assembly, which can prevent the connecting member 5 from contacting the pressure plate when the friction plate is severely worn, thereby reducing the risk of damage to the pressure plate. On the other hand, due to the setting of the hollow portion 32, the pressure plate will slip between the driven plate assembly, which can also remind the driver to replace the clutch driven plate assembly in time.

[0062] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A driven disc assembly of a clutch, characterized in that: include: driven disc; a corrugated plate, arranged on the edge of the driven disc, and provided with a first connecting hole; a first friction plate having a mating surface for mating with the pressure plate, the first friction plate being disposed on one side of the corrugated plate, the interior of the first friction plate being provided with a hollow portion, and a second connecting hole being provided on a wall of the hollow portion adjacent to the corrugated plate; a second friction plate, disposed on the other side of the corrugated plate, and having a third connecting hole; A connecting member passes through the third connecting hole, the first connecting hole and the second connecting hole in sequence. The second friction plate, the corrugated plate and the first friction plate are connected through the connecting member. There is a gap between the edge of the connecting member in the hollow portion and the wall opposite to the connecting member.

2. The driven disc assembly of the clutch according to claim 1, characterized in that: There are multiple hollow portions, and each of the hollow portions is arranged on the first friction plate around the driven disk array.

3. The driven disc assembly of the clutch according to claim 1, characterized in that: A reinforcement column is provided in the hollow portion, and two ends of the reinforcement column are respectively connected to the walls on two opposite sides of the hollow portion.

4. The driven disc assembly of the clutch according to claim 1, characterized in that: The first connecting hole, the second connecting hole and the third connecting hole are threaded holes, and the connecting member is a screw that can be matched with the first connecting hole, the second connecting hole and the third connecting hole respectively.

5. The driven disc assembly of the clutch according to claim 4, characterized in that: The connecting member includes a head and a connecting portion, the head is arranged at one end of the connecting portion, the connecting member is threadedly connected to the first connecting hole, the second connecting hole, and the third connecting hole respectively, and the head is located on the side of the corrugated plate away from the first friction plate.

6. The driven disc assembly of the clutch according to claim 5, characterized in that: An end surface of the connecting portion away from the head portion is flush with a wall of the hollow portion.

7. The driven disc assembly of the clutch according to claim 5, characterized in that: The second friction plate is further provided with a receiving groove, the third connecting hole is provided in the receiving groove, and the receiving groove and the third connecting hole pass through the second friction plate together.

8. The driven disc assembly of the clutch according to claim 7, characterized in that: There is a certain distance between the surface of the second friction plate facing away from the corrugated plate and the surface of the connecting member located in the accommodating groove, so that the head of the connecting member is completely placed in the accommodating groove.

9. The driven disc assembly of the clutch according to claim 7, characterized in that: The diameter of the slot opening of the accommodating slot is larger than the diameter of the slot bottom of the accommodating slot.

10. A clutch, characterized in that: Comprising the driven disc assembly according to any one of claims 1-9.

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