Driven disc assembly with large pressing force and stable compression amount

Abstract

The utility model discloses a driven plate assembly with large pressing force and stable compression amount, which comprises a rivet, a split waveform piece, a driven plate, an upper friction plate and a lower friction plate, a gap cavity is formed between the upper friction plate and the split waveform piece, a whole circle of spring steel sheet is additionally arranged between the upper friction plate and the split waveform piece, and the lower friction plate is arranged between the split waveform piece and the driven plate. And the spring steel sheet penetrates through the gap cavity. The whole circle of spring steel sheet is additionally installed between the upper friction sheet and the split waveform sheet, the spring steel sheet penetrates through the gap cavity, the whole circle of spring steel sheet is attached to the back face of the split waveform sheet, the strength of the spring steel sheet is the same as that of the split waveform sheet, but the spring steel sheet can recover to the original state when bearing large pressing force, and the spring steel sheet is not damaged. Therefore, buckling deformation of the friction plate is avoided, the problems of shaking and shifting caused by insufficient compression amount after buckling deformation of the friction plate of the driven disc when the hot vehicle clutch works for a long time are solved, and the driving comfort is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile clutches, in particular to a driven disc assembly with large pressing force and stable compression amount. Background Art

[0002] When the clutch works for a long time, high temperature and increased clamping force will cause the friction plate of the driven disc to warp and deform. Since the friction plate is a mixture of friction material and adhesive, its stiffness and strength are not as good as the corrugated plate made of spring steel. Under the action of large clamping force, the upper friction plate will warp and deform, filling the gap to the height of the corrugated plate, that is, the gap between the original corrugated plate and the upper friction plate. The final result is that the height of the corrugated plate remains unchanged, but the warping and deformation of the upper friction plate will reduce the actual height of the corrugated plate, greatly reducing the comfort.

[0003] The wave plate structure of the 430 clutch in the prior art can be roughly divided into the following two categories:

[0004] As the instruction manual Figure 1-2 The first type of integral corrugated sheet structure is shown in the figure. The corrugated sheet of this structure needs to bear the transmission torque of the driven plate, so the strength requirement is relatively high and the material thickness is relatively large, generally 1.6mm 50CrVA. Now the standards in the industry require higher and higher comfort of vehicles, and the buffering effect of the compression of the corrugated sheet is required to be more stringent, but the corrugated height of the integral corrugated sheet structure will lead to too much rigidity and too large free travel of the driven plate assembly, which will make the vehicle unclear and unable to shift gears. As a result, the first type of integral corrugated sheet structure is used less and less.

[0005] As the instruction manual Figure 3-4 As shown, the second type is a driven disc + split corrugated plate structure. The main function of the driven disc is to transmit torque, and the main function of the corrugated plate is to combine and buffer. A relatively thick driven disc (large plate) is added between the two friction plates. Its function is to ensure strength, and it has no corrugation itself. On this basis, the split corrugated plate is riveted by riveting, and the strength of the corrugated plate can be reduced. At this time, the corrugated plate material only needs 0.8mm, and the stiffness is greatly reduced, which improves comfort. However, as the torque requirements of vehicles become larger and larger, the clamping force of the driven disc assembly with large clamping force and stable compression also increases. The friction plate is a mixture of friction material and adhesive. Its stiffness and strength are not as good as the corrugated plate of spring steel. Under the action of large clamping force, the upper friction plate will warp and deform, filling the gap of the corrugated height, that is, the gap between the original corrugated plate and the upper friction plate. The final result is that the height of the corrugated plate remains unchanged, but the warping and deformation of the upper friction plate will reduce the actual corrugated height, resulting in a significant reduction in comfort.

[0006] Therefore, the utility model proposes a new technical solution to overcome and solve the above-mentioned problems. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a driven disc assembly with large clamping force and stable compression, add a full circle of spring steel sheet between the upper friction plate and the split corrugated plate, and the spring steel sheet passes through the gap cavity, and a full circle of spring steel sheet is attached to the back of the spring steel sheet, which has the same effect as the split corrugated plate in terms of strength, but when subjected to a large clamping force, the spring steel sheet will return to its original state, thereby avoiding the warping and deformation of the friction plate, solving the problem of shaking and swaying caused by insufficient compression caused by the warping and deformation of the driven disc friction plate when the hot car clutch works for a long time, and improving driving comfort. The driven disc assembly with stable compression and improved comfort is more suitable for high-power trucks, trucks, AMT engineering vehicles and other models.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] The utility model discloses a driven disc assembly with large clamping force and stable compression, comprising rivets, a split corrugated plate, a driven disc, an upper friction plate and a lower friction plate, wherein a gap cavity is formed between the upper friction plate and the split corrugated plate, a full circle of spring steel sheets are added and installed between the upper friction plate and the split corrugated plate, and the spring steel sheets penetrate through the gap cavity.

[0010] As a preferred technical solution of the utility model, the rivet passes through the upper friction plate, the spring steel plate and the split corrugated plate in sequence.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model: a full circle of spring steel sheet is added and installed between the upper friction plate and the split corrugated plate, and the spring steel sheet passes through the gap cavity, and a full circle of spring steel sheet is attached to the back of the spring steel sheet. The strength is equivalent to that of the split corrugated plate, but when subjected to a large pressing force, the spring steel sheet will return to its original state, thereby avoiding the warping and deformation of the friction plate, solving the problem of shaking and swaying caused by insufficient compression caused by the warping and deformation of the driven plate friction plate when the hot car clutch works for a long time, and improving driving comfort. The driven plate assembly with stable compression and improved comfort is more suitable for high-power trucks, trucks, AMT engineering vehicles and other models. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a comparative reference diagram of the integral corrugated sheet in the prior art and the present utility model;

[0015] Figure 2 yes Figure 1 A magnified schematic diagram of the local structure in FIG.

[0016] Figure 3 It is a comparative reference diagram of the driven disc + split corrugated sheet in the prior art and the utility model;

[0017] Figure 4 yes Figure 3 A magnified schematic diagram of the local structure in FIG.

[0018] On top Figure 1-4 Middle: 1. Integral corrugated plate; 2. Friction plate; 3. Rivet; 4. Split corrugated plate; 5. Driven plate; 6. Upper friction plate; 7. Lower friction plate; 8. Gap cavity.

[0019] Figure 5 This is a schematic diagram of the specific structure of the corrugated sheet of the utility model;

[0020] Figure 6 yes Figure 5 A magnified schematic diagram of the local structure in FIG.

[0021] Figure 7 It is a top view of the friction plate of the utility model;

[0022] Figure 8 It is a cross-sectional view of the friction plate of the utility model;

[0023] Fig. 9 yes Figure 8 The enlarged schematic diagram of the structure at P in the middle;

[0024] Fig.10 This is a schematic diagram of a driven disc assembly with large pressing force and stable compression amount of the utility model;

[0025] Fig.11 This is a cross-sectional view of the driven disc assembly of the utility model with large pressing force and stable compression;

[0026] Fig.12 yes Fig.11 A magnified schematic diagram of the structure at B in the middle;

[0027] Fig.13 It is a torsional vibration reduction characteristic curve diagram of the utility model;

[0028] Fig.14 It is the axial compression characteristic curve diagram of the utility model;

[0029] Fig.15 It is a data record chart of the torsion characteristic test of the utility model;

[0030] On top Figure 5-15Middle: 3. Rivet; 4. Split corrugated plate; 5. Driven plate; 6. Upper friction plate; 7. Lower friction plate; 9. Spring steel plate. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] Example 1

[0033] like Figure 5-15 As shown, the utility model provides a driven disc assembly with large clamping force and stable compression, including rivets 3, split corrugated plates 4, driven discs 5, upper friction plates 6, and lower friction plates 7. A gap cavity 8 is formed between the upper friction plate 6 and the split corrugated plates 4. In the prior art, a gap between the split corrugated plates and the friction plates will appear in the driven disc + split corrugated plate structure, that is, a gap cavity 8 is formed between the upper friction plate 6 and the split corrugated plate 4 in the utility model. As the torque requirements of vehicles become larger and larger, a driven disc with large clamping force and stable compression is required. The clamping force of the assembly also increases. The friction plate is a mixture of friction material and adhesive. Its rigidity and strength are not as good as the corrugated plate of spring steel. Under the action of large clamping force, the upper friction plate 6 will warp and deform, filling the gap to the height of the corrugated plate, that is, the gap between the original corrugated plate and the upper friction plate 6, which means: in the utility model, a gap cavity 8 is formed between the upper friction plate 6 and the split corrugated plate 4. The final result is that the height of the corrugated plate remains unchanged, but because the warping deformation of the upper friction plate 6 will reduce the actual corrugated height, the comfort is greatly reduced. The utility model adds a full circle of spring steel sheet 9 between the upper friction plate 6 and the split corrugated plate 4, and the spring steel sheet 9 passes through the gap cavity 8. As shown in the attached manual Figure 5-6 As shown, a spring steel sheet 9 is attached to the back of the friction plate in a full circle, and has the same effect as the split corrugated sheet 4 in terms of strength. However, when subjected to a large compressive force, the spring steel sheet 9 will return to its original state, thereby preventing the friction plate from warping and deformation.

[0034] As the instruction manual Figure 3-4 As shown, the second type is a driven plate + split corrugated plate structure. The main function of the driven plate is to transmit torque, and the main function of the corrugated plate is to combine buffering. A relatively thick driven plate (large plate) is added between the two friction plates. Its function is to ensure strength, and it has no corrugation itself.

[0035] On this basis, the rivet 3 passes through the upper friction plate 6, the spring steel plate 9 and the split corrugated plate 4 in sequence. Figure 3-4As shown, based on the structure of the split friction plate 4 in the prior art, the split corrugated plate 4 is riveted by rivets 3, and the strength of the split corrugated plate 4 can be reduced. At this time, the material of the split corrugated plate 4 only needs 0.8 mm, the rigidity is greatly reduced, and the comfort is improved.

[0036] As the instruction manual Figure 1-2 The first type of integral corrugated plate structure is shown in FIG. It includes an integral corrugated plate 1, a friction plate 2 and a rivet 3. The corrugated plate of this structure needs to bear the transmission torque of the driven plate, so the strength requirement is relatively high and the material thickness is relatively large, generally 1.6mm 50CrVA.

[0037] Now, the industry has increasingly higher standards for vehicle comfort, and stricter requirements on the buffering effect of the compression of the corrugated plate. However, the corrugated height of the overall corrugated plate 1 structure will result in excessive rigidity, and the free travel of the traditional driven plate assembly is too large, which will make the vehicle unclearly separated and unable to shift gears, resulting in the use of the first type of overall corrugated plate structure being less and less.

[0038] As the instruction manual Figure 3-4 As shown, it is a second type of driven plate + split corrugated plate structure, including rivets 3, split corrugated plates 4, driven plates 5, upper friction plates 6, lower friction plates 7, and under the action of large pressing force, the upper friction plate 6 will warp and deform, filling the gap to the height of the corrugated plate, that is, the gap between the original corrugated plate and the upper friction plate 6, that is, in the utility model, a gap cavity 8 is formed between the upper friction plate 6 and the split corrugated plate 4. However, in the traditional corrugated plate height remains unchanged, but because the warping deformation of the upper friction plate will reduce the actual corrugated height, the comfort is greatly reduced. Therefore, it does not meet the requirements of today's society for vehicle comfort, which prompts the utility model to propose an improved solution.

[0039] As the instruction manual Figure 7-9 As shown, the overall mounting process of the friction plate has been realized and can be used in high-horsepower trucks, vans or AMT engineering vehicles.

[0040] Reference Manual Attached Figure 13-15 As shown, the torsional vibration reduction characteristic curve and the axial compression characteristic curve are obtained, and the torsional characteristic test data record table is obtained.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A driven disc assembly with large clamping force and stable compression, comprising a rivet (3), a split corrugated plate (4), a driven disc (5), an upper friction plate (6), and a lower friction plate (7), wherein a gap cavity (8) is formed between the upper friction plate (6) and the split corrugated plate (4), and characterized in that: A full circle of spring steel sheet (9) is added and installed between the upper friction plate (6) and the split corrugated plate (4), and the spring steel sheet (9) passes through the gap cavity (8).

2. A driven disc assembly with large pressing force and stable compression according to claim 1, characterized in that: The rivet (3) passes through the upper friction plate (6), the spring steel plate (9) and the split corrugated plate (4) in sequence.

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