High-torque clutch pressure plate assembly

Abstract

The high-torque clutch pressure plate assembly comprises a plate hub, plate hub pieces, damping discs, springs and wave springs, the outer side of the plate hub is sleeved with the plate hub pieces and the wave springs, the positions, located on the two sides of the plate hub pieces, of the plate hub are connected with the damping discs in a riveted mode, and the damping discs are connected with the springs used for buffering the rotation action of the plate hub pieces in a clamped mode. A wave spring used for tightly pressing the disc hub piece is arranged between the disc hub piece and the damping disc, the driven disc is fixedly connected to the disc hub piece through the adapter, the driven disc is provided with the wave pieces distributed in the circumferential direction, and the friction pieces are fixedly connected to the two sides of each wave piece. The disc hub piece is externally connected with the driven disc through the adapter piece, so that the axial distance between the disc hub and the friction plate is increased, interference between the disc hub and a flywheel in the moving process is avoided, the pressing disc is of a split structure, the friction plate is partially modularized, and the production and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clutches, and particularly relates to a high-torque clutch pressure plate assembly. Background Technique

[0002] A clutch is an important component of an automobile power system, which is responsible for cutting off and connecting the power with the engine. The patent number 201721926867.5 discloses a wear-resistant and temperature-resistant tractor clutch driven disc assembly, which increases the torque of the clutch by arranging a plurality of teeth for externally connecting friction plates on the periphery of the driven body, and is suitable for heavy-duty vehicles. However, the driven body is of an integral structure, which requires the teeth to be coplanar, has high requirements for its processing accuracy, and once deformed or damaged, it needs to be replaced as a whole, resulting in high maintenance costs. Summary of the Invention

[0003] In order to overcome the deficiencies of the background technique, the technical solution adopted by the utility model is: a high-torque clutch pressure plate assembly, which includes a hub, hub plates, a damping disc, a spring and a wave spring. The outside of the hub is sleeved with hub plates and a wave spring. The hub is riveted with damping discs on both sides of the hub plates, and the damping discs are clamped with springs for buffering the rotation action of the hub plates. A wave spring for tightly pressing the hub plates is arranged between the hub plates and the damping discs. It also includes a driven disc, an adapter, a wave plate and a friction plate. The driven disc is fixedly connected to the hub plates through the adapter, and the driven disc is provided with wave plates distributed in a circumferential manner. Friction plates are fixedly connected to both sides of the wave plates.

[0004] By adopting the above technical solution, the hub is used to externally connect the output shaft of the gearbox. The wave spring makes the hub plates tightly press the damping discs. The hub plates externally connect the driven disc through the adapter, thereby increasing the axial distance between the hub and the friction plate. The driven disc is fixedly connected with six groups of independent wave plates. When the pressure plate moves towards the flywheel, the friction plate contacts the flywheel surface, so that the friction plate drives the driven disc, the hub plates and the hub to rotate in sequence. Since the distance from the friction surface of the pressure plate to the center point of the hub is increased, the force arm is lengthened, thereby increasing the torque, and it is suitable for large-torque transmission equipment such as agriculture and construction.

[0005] The utility model is further arranged such that the wave plate is provided with a mounting hole and a clamping portion, as well as a clamping block portion adapted to the clamping portion. One side of two wave plates is clamped with each other through the clamping portion, and the other side is detachably connected to the driven disc through the mounting hole. The clamping portion is a bent clamping strip, and the two wave plates are clamped together by clamping the clamping strip in the clamping block portion, which is simple and convenient to install.

[0006] The present utility model is further configured such that the corrugated sheet is provided with a mounting hole and a welding portion. One side of two groups of corrugated sheets is welded to each other through the welding portion, and the other side is detachably connected to the driven disk through the mounting hole. The mounting hole and the welding portion are respectively arranged at the upper and lower ends of the corrugated sheet. The two groups of corrugated sheets are combined together by a hot melting welding process, so that the friction plate portion of the pressure plate is modularized, facilitating direct replacement.

[0007] The present utility model is further configured such that the corrugated sheet is provided with riveting holes, and the friction plate is provided with countersunk holes corresponding to the riveting holes. The friction plate is riveted to the corrugated sheet through the riveting holes.

[0008] Furthermore, a convex portion is provided in the middle part of the corrugated sheet, and the riveting holes are arranged at the convex portion.

[0009] Adopting the above technical solution, when two groups of corrugated sheets are combined, a smaller gap is formed in the middle. When the friction plate abuts against the flywheel, this gap gives the corrugated sheet elastic space for deformation, making the connection structure of the friction plate portion more stable and improving the service life of the pressure plate.

[0010] The present utility model is further configured such that the disk hub sheet is provided with a first group of holes distributed in a circumferential manner, and the adapter and the driven disk are provided with a second group of holes and a third group of holes corresponding to the first group of holes. The disk hub sheet is riveted to the driven disk through the adapter.

[0011] Adopting the above technical solution, each group of holes is provided with five through holes, increasing the fixing points between the disk hub sheet and the driven disk. During installation, the rivets are sequentially passed through the first group of holes, the second group of holes and the third group of holes, making the connection method between the disk hub sheet and the driven disk simple and fast. When the friction plate needs to be replaced, only the rivets need to be drilled off for replacement.

[0012] The present utility model is further configured such that the disk hub sheet is provided with a mounting groove for installing a spring, and the shock-absorbing disk is provided with an arc portion for wrapping the spring at the position of the mounting groove.

[0013] Adopting the above technical solution, when the friction plate contacts the surface of the flywheel, the disk hub sheet drives the spring to compress. At this time, the disk hub sheet rotates slightly relative to the shock-absorbing disk, thus playing a role in buffering torque. The arc portions of the shock-absorbing disks on both sides of the disk hub sheet are combined to form a cylindrical groove for wrapping the spring, preventing the spring from detaching from the disk hub sheet during deformation.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The disk hub sheet is externally connected to the driven disk through the adapter, thereby increasing the axial distance between the disk hub and the friction plate, avoiding interference between the disk hub and the flywheel during the movement process, and the pressure plate adopts a split structure, making the friction plate portion modularized and reducing the production and maintenance costs;

[0016] 2. The driven plate is fixedly connected with six groups of independent corrugated sheets. Since the distance from the friction surface of the pressure plate to the center point of the hub is increased, the force arm is lengthened, thereby increasing the torque, which is applicable to large-torque transmission equipment such as agriculture and construction.

[0017] The following further describes the embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0018] Figure 1 is the front view of the present invention;

[0019] Figure 2 is the Figure 1 stepped sectional view of the A-direction view in the present invention;

[0020] Figure 3 is the Figure 2 partial enlarged view at B in the present invention;

[0021] Figure 4 is the front view of the corrugated sheet in the first embodiment of the present invention;

[0022] Figure 5 is the structural schematic diagram of two groups of corrugated sheets assembled in the first embodiment of the present invention;

[0023] Figure 6 is the left view of the corrugated sheet of the present invention;

[0024] Figure 7 is the front view of the corrugated sheet in the second embodiment of the present invention;

[0025] Wherein: 1 - hub, 2 - hub plate, 3 - shock-absorbing disc, 4 - spring, 5 - corrugated spring, 6 - driven plate, 7 - adapter, 8 - corrugated sheet, 9 - friction plate, 11 - mounting hole, 12 - clamping part, 13 - clamping block part, 14 - welding part, 15 - riveting hole, 16 - counterbore, 17 - convex part, 18 - first hole group, 19 - second hole group, 20 - third hole group, 21 - mounting groove, 31 - arc part; Detailed Embodiment

[0026] As Figures 1-3As shown in the figure, the present utility model provides a first embodiment of a high-torque clutch pressure plate assembly, which includes a hub 1, hub plates 2, a shock-absorbing disc 3, springs 4, wave springs 5, a driven disc 6, an adapter 7, wave plates 8, and friction plates 9. A hub plate 2 and a wave spring 5 are sleeved outside the hub 1. Shock-absorbing discs 3 are riveted on both sides of the hub 1 where the hub plate 2 is located. The hub plate 2 is provided with an installation groove 21 for installing the spring 4. The shock-absorbing disc 3 is provided with an arc portion 31 for wrapping the spring 4 at the installation groove 21. A wave spring 5 for tightly pressing the hub plate 2 is arranged between the hub plate 2 and the shock-absorbing disc 3. The hub plate 2 is provided with a first hole group 18 distributed in a circumferential manner. The adapter 7 and the driven disc 6 are provided with a second hole group 19 and a third hole group 20 corresponding to the first hole group 18. The hub plate 2 is riveted to the driven disc 6 through the adapter 7. The driven disc 6 is provided with wave plates 8 distributed in a circumferential manner. Friction plates 9 are fixedly connected to both sides of the wave plates 8.

[0027] Combined with Figures 4-6 As shown in the figure, in this embodiment, the wave plate 8 is provided with an installation hole 11, a clamping portion 12, and a clamping block portion 13 adapted to the clamping portion 12. One side of two groups of wave plates 8 is clamped to each other through the clamping portion 12, and the other side is detachably connected to the driven disc 6 through the installation hole 11. The wave plate 8 is provided with a riveting hole 15. The friction plate 9 is provided with a counterbore 16 corresponding to the riveting hole 15. The friction plate 9 is riveted to the wave plate 8 through the riveting hole 15. A protruding portion 17 is provided in the middle part of the wave plate 8. The riveting hole 15 is arranged at the protruding portion 17.

[0028] Combined with Figure 7 As shown in the figure, the present utility model provides a second embodiment of a high-torque clutch pressure plate assembly, which is different from the first embodiment in that: the wave plate 8 is provided with an installation hole 11 and a welding portion 14. One side of two groups of wave plates is welded to each other through the welding portion 14, and the other side is detachably connected to the driven disc 6 through the installation hole 11. The installation hole 11 and the welding portion 14 are respectively arranged at the upper and lower ends of the wave plate 8. Two groups of wave plates 8 are combined together through a hot melt welding process, so that the friction plate 9 part of the pressure plate is modularized, which is convenient for direct replacement.

[0029] The working principle of the present utility model is that the disk hub 1 is used to externally connect the output shaft of the gearbox. Through the wave spring 5, the disk hub piece 2 is tightly pressed against the shock-absorbing disk 3. The disk hub piece 2 is externally connected to the driven disk 6 through the adapter 7, thereby increasing the axial distance between the disk hub 1 and the friction plate 9. The driven disk 6 is fixedly connected with six groups of independent friction plate 9 assemblies, which is convenient for replacing the friction plate 9 assemblies. When the pedal is released, the pressure plate moves towards the flywheel direction. The friction plate 9 contacts the flywheel surface, causing the friction plate 9 to drive the driven disk 6, the disk hub piece 2, and the disk hub 1 to rotate in sequence. During this period, the disk hub piece 2 drives the spring 4. At this time, the disk hub piece 2 rotates slightly relative to the shock-absorbing disk 3. When the pressure plate rotates synchronously with the flywheel, the spring 4 drives the disk hub piece 2 to reset relative to the disk hub 1, and the wave spring 5 presses the disk hub piece 2 and the disk hub 1 tightly, thereby playing a role in buffering torque.

[0030] In addition to the above embodiments, the present utility model may also have other implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present utility model.

Claims

1. A high-torque clutch pressure plate assembly, comprising a hub (1), hub plates (2), a shock absorber disc (3), springs (4) and wave springs (5). The hub (1) is sleeved with hub plates (2) and wave springs (5) on the outer side. The hub (1) is riveted with shock absorber discs (3) on both sides of the hub plates (2), and the shock absorber discs (3) are clamped with springs (4) for buffering the rotation of the hub plates (2). A wave spring (5) for tightly pressing the hub plates (2) is arranged between the hub plates (2) and the shock absorber discs (3). It is characterized in that, It also includes a driven plate (6), an adapter (7), a wave washer (8) and a friction plate (9). The driven plate (6) is fixedly connected to the hub plate (2) through the adapter (7), and the driven plate (6) is provided with wave washers (8) distributed in a circumferential manner. Friction plates (9) are fixedly connected to both sides of the wave washer (8).

2. The high-torque clutch pressure plate assembly according to claim 1, wherein: The wave washer (8) is provided with a mounting hole (11) and a clamping portion (12), as well as a clamping block portion (13) adapted to the clamping portion (12). One side of two groups of wave washers (8) is clamped to each other through the clamping portion (12), and the other side is detachably connected to the driven plate (6) through the mounting hole (11).

3. The high-torque clutch pressure plate assembly according to claim 1, characterized in that: The wave washer (8) is provided with a mounting hole (11) and a welding portion (14). One side of two groups of wave washers (8) is welded to each other through the welding portion (14), and the other side is detachably connected to the driven plate (6) through the mounting hole (11).

4. A high-torque clutch pressure plate assembly according to claim 2 or 3, characterized in that: The wave washer (8) is provided with a riveting hole (15), and the friction plate (9) is provided with a countersunk hole (16) corresponding to the riveting hole (15). The friction plate (9) is riveted to the wave washer (8) through the riveting hole (15).

5. The high-torque clutch pressure plate assembly according to claim 4, wherein: A convex portion (17) is provided in the middle part of the wave washer (8), and the riveting hole (15) is provided at the convex portion (17).

6. The high-torque clutch pressure plate assembly according to claim 1, wherein: The hub plate (2) is provided with a first hole group (18) distributed in a circumferential manner. The adapter (7) and the driven plate (6) are provided with a second hole group (19) and a third hole group (20) corresponding to the first hole group (18). The hub plate (2) is riveted to the driven plate (6) through the adapter (7).

7. A high-torque clutch pressure plate assembly according to claim 1, characterized in that: The hub plate (2) is provided with a mounting groove (21) for mounting a spring (4), and the shock-absorbing disc (3) is provided with an arc portion (31) for wrapping the spring (4) at the mounting groove (21).

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