CN106884891B - Damper with large torsion angle - Google Patents
Damper with large torsion angle Download PDFInfo
- Publication number
- CN106884891B CN106884891B CN201710138090.4A CN201710138090A CN106884891B CN 106884891 B CN106884891 B CN 106884891B CN 201710138090 A CN201710138090 A CN 201710138090A CN 106884891 B CN106884891 B CN 106884891B
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- Prior art keywords
- hub
- disc
- discs
- central plate
- vibration
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
Abstract
The invention discloses a damper with a large torsion angle, which comprises two damping discs and a disc hub, wherein the two damping discs are positioned at two sides of the disc hub; the vibration damping disk comprises a circular central plate, the outer periphery of the central plate is bent to form a cylindrical folded edge part, and one end of the folded edge part, which is far away from the central plate, forms an installation part; the inner edge of the mounting part is provided with a set number of limiting parts; the outer edge of the hub piece of the hub is provided with a limiting part; the mounting portions of the damper discs are stacked together, the center plates of the damper discs project in opposite directions, a receiving chamber is formed between the two damper discs, the hub pieces are received in the receiving chamber, and when the hub rotates relative to the damper discs, the limiting portions on the hub pieces collide with the limiting portions of the damper discs, so that the hub stops rotating relative to the damper discs. According to the invention, a special-shaped flat pin is not required to be used for fixing the vibration damping disc, so that the situation that a special-shaped riveting hole of the driven disc and the vibration damping disc is cracked in the riveting process when the special-shaped flat pin is used can be avoided, and the loss of products is avoided.
Description
Technical Field
The invention relates to a clutch driven disc assembly, in particular to a shock absorber.
Background
In order to pursue the comfort of driving an automobile and reduce the vibration generated by a power system during operation as much as possible, the clutch is required to be smooth and mild in the process of transmitting the power of an engine, and in order to meet the requirements, the current clutch is mainly realized by adopting low-angle rigidity and large torsion angles, the shock absorber cannot be continuously enlarged due to the limitation of the product space by the whole automobile, the current conventional design adopts a special flat pin to obtain a larger torsion angle, the flat pin is difficult to design, the requirements on the manufacturing process are strict, and if the requirement value cannot be met, the special holes of a driven disc and a damping disc are easy to crack during riveting, so that the product is invalid. Meanwhile, the relative rotation angle of the hub and the vibration reduction disc in the vibration reduction device cannot be effectively improved, the vibration of the vehicle cannot be continuously reduced, and the driving comfort of the vehicle cannot be continuously improved.
Disclosure of Invention
The invention aims to improve the rotation angle of a disc hub in a shock absorber relative to a shock absorbing disc so as to obtain a large torsion angle of a clutch, and the specific technical scheme is as follows:
the vibration damper with the large torsion angle comprises a vibration damper disc and a disc hub, wherein the disc hub is one piece, the vibration damper disc is two pieces, and the two vibration damper discs are positioned on two sides of the disc hub;
the vibration damping disk comprises a circular central plate, wherein the outer periphery of the central plate is bent along the axial direction of the central plate to form a cylindrical folded edge part, and one end of the folded edge part, which is far away from the central plate, extends outwards along the radial direction of the central plate to form a mounting part parallel to the central plate; the inner edge of the mounting part is provided with a set number of limiting parts, and the limiting parts are formed by the inward protruding of the inner edge of the mounting part along the radial direction of the central plate;
the disk hub comprises a disk hub core and disk hub pieces formed by extending outwards along the radial direction of the outer peripheral surface of the disk hub core, the disk hub pieces are annular, limiting parts with the same number as the limiting parts are arranged on the outer edges of the disk hub pieces, and the limiting parts are formed by protruding outwards along the radial direction of the outer edges of the disk hub pieces;
the mounting parts of the two vibration reduction discs are overlapped, the two vibration reduction discs are fixed together through rivets riveted on the mounting parts, the central plates of the two vibration reduction discs protrude in opposite directions, a containing cavity is formed between the two vibration reduction discs, the disc hub piece of the disc hub is contained in the containing cavity, the disc hub can rotate relative to the vibration reduction discs, and when the disc hub rotates relative to the vibration reduction discs, one side of the limiting part on the disc hub piece can collide with one side of the limiting part of the vibration reduction discs, so that the disc hub stops rotating relative to the vibration reduction discs.
In the invention, two damping discs are provided, one of which is used as a driven disc. The mounting parts of the two vibration reduction discs are overlapped, the two vibration reduction discs are fixed together through rivets riveted on the mounting parts, the central plates of the two vibration reduction discs protrude in opposite directions, a containing cavity is formed between the two vibration reduction discs, the disc hub piece of the disc hub is contained in the containing cavity, the disc hub can rotate relative to the vibration reduction discs, and when the disc hub rotates relative to the vibration reduction discs, one side of the limiting part on the disc hub piece can collide with one side of the limiting part of the vibration reduction discs, so that the disc hub stops rotating relative to the vibration reduction discs.
In the invention, two damping discs are arranged, the connecting points of the two damping discs are arranged on the mounting part, and the limiting parts are arranged radially inwards along the inner edge of the mounting part, when the limiting parts on the disc hubs rotate relative to the damping discs, one sides of the limiting parts collide with one sides of the limiting parts so as to stop rotating, the rivet is arranged on the mounting part of the damping discs, the disc hubs do not contact with the rivet when rotating, and the rivet does not play a role in limiting the rotation of the disc hubs but only plays a role in fixing the damping discs.
Specifically, the number of the limiting parts is four, the extension lines of the two side edges of each limiting part along the circumferential direction of the central plate pass through the central point of the central plate, and the included angle of the extension lines of the two side edges of the same limiting part along the circumferential direction of the central plate is 20 degrees; the number of the limiting parts on the disk hub piece is four, the extension lines of the two side edges of each limiting part along the circumferential direction of the disk hub piece pass through the center point of the disk hub core, and the included angle of the extension lines of the opposite edges of the adjacent two limiting parts along the circumferential direction of the disk hub piece is 66.8 degrees.
When the number of the limiting parts is set to four, the disc hub can obtain a larger rotation angle relative to the vibration reduction disc, specifically, the included angle of the extension lines of the two side edges of the same limiting part along the circumferential direction of the central plate is set to 20 degrees, the included angle of the extension lines of the opposite edges of the two adjacent limiting parts along the circumferential direction of the disc hub piece is set to 66.8 degrees, and therefore the effect generated by the rotation angle of the disc hub relative to the vibration reduction disc in the application can reach the effect generated by the large torsion angle design in the 46.8-degree dual-mass flywheel in the prior art.
Further, four vibration reduction windows are arranged on the central plate of the vibration reduction plate, the four vibration reduction windows are arranged at equal intervals around the center of the central plate, two opposite vibration reduction windows form a group, the four vibration reduction windows are divided into two groups, the two groups of vibration reduction windows are different in size, a first spring is arranged in one group of vibration reduction windows, and a second spring is arranged in the other group of vibration reduction windows; the length of the first spring is longer than that of the second spring; the limiting part and the vibration reduction window are arranged at intervals when being observed along the axial direction of the central plate of the vibration reduction plate;
four hub windows of the same size are provided on the hub plate of the hub corresponding to the four vibration reduction windows.
The invention can transfer the torque of the engine more smoothly during operation and can further reduce the noise of the shock absorber, because the noise generated by the impact of the disk hub window and the springs is one of the noise generated by the engine during operation, only the first spring is active when the vehicle runs at low speed and is in idle state, and the number of the active springs is reduced, thereby reducing the probability of noise generation of the shock absorber.
Further, a rivet hole is formed in the mounting portion of the vibration reduction disc, the rivet hole is used for fixing the two vibration reduction discs together, and the rivet hole is located on the outer side of the limiting portion. The area of the mounting part of the vibration damping disk adjacent to the limiting part is provided with a larger plane area, and the riveting holes are formed in the area, so that the influence on the quality of the vibration damping disk caused by the larger strength reduction of the area due to the hole opening can be effectively reduced.
Further, a gap is provided between the stopper portion and the center plate when viewed in the axial direction of the center plate of the damper disc. The provision of this gap enables the space between the two damping discs to be provided with the most adequate air flow to avoid excessive temperatures of the damper during operation.
Further, the vibration reduction disc is integrally stamped from a flat plate. The vibration damping disk is formed by stamping a whole plate, so that the processing efficiency of the vibration damping disk can be effectively improved.
Further, the rivet is a cylindrical rivet. The cylindrical rivet is used for replacing the special-shaped flat pin, so that the situation that the vibration reduction disc is cracked at the riveting position in the riveting process can be avoided, the consumption of products is reduced, the quality product rate is improved, and the manufacturing cost of the products can be reduced.
Through redesigning the vibration reduction disc and the disc hub, the special process requirements on the special-shaped limiting pin are avoided, and the effect of large torsion angle can be achieved by riveting the conventional limiting pin. Under the condition that other parts are not added, the product performance is improved, the transmission angle of the dual-mass flywheel can be achieved, and vehicle-mounted vibration is absorbed to the maximum extent. The torsional property of the product can be optimized in the original narrow space, and the vibration reduction and large-angle requirements of the whole vehicle are met.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a vibration damping disk of the present invention.
Fig. 2 is a view in the direction A-A in fig. 1.
FIG. 3 is a schematic illustration of two of the damping disks of FIG. 1 stacked together.
FIG. 4 is a schematic structural view of one embodiment of a hub in the present invention.
Fig. 5 is a schematic view of a damper composed of two damper disks of fig. 1 and a hub of fig. 4, one of which is removed for clarity.
Fig. 6 is a view in the direction B-B in fig. 5.
FIG. 7 is a schematic illustration of a position of the hub after rotation relative to the damping disk.
FIG. 8 is a schematic view of another position of the hub after rotation relative to the damping disk.
Detailed Description
Referring to fig. 5 and 6, a damper with a large torsion angle includes a damper disc 10 and a hub 20, wherein the hub 20 is one piece, the damper disc 10 is two pieces, and the two damper discs 10 are located at two sides of the hub 20.
Referring to fig. 1 and 2, the damping disk 10 includes a circular central plate 15, wherein the outer periphery of the central plate 15 is bent along the axial direction of the central plate to form a cylindrical folded edge portion 13, and one end of the folded edge portion 13 away from the central plate extends outwards along the radial direction of the central plate to form a mounting portion 11 parallel to the central plate; the inner edge of the mounting portion 11 is provided with a set number of stopper portions 12, and the stopper portions 12 are formed by the inner edge of the mounting portion 11 protruding inward in the radial direction of the center plate 15. In this embodiment, four limiting portions 12 are provided, and the four limiting portions 12 are uniformly arranged around the axis of the center plate.
A rivet hole 111 is formed in the mounting portion 11 of the damper disc 10, the rivet hole 111 is used for fixing two damper discs together, and the rivet hole 111 is located outside the limiting portion 12.
The spacing portion 12 and the center plate 15 have a gap 112 therebetween when viewed in the axial direction of the center plate 15 of the damper disc 10.
Referring to fig. 4, the hub 20 includes a hub core 27 and a hub piece 21 formed to extend radially outwardly along an outer peripheral surface of the hub core 27, the hub piece 21 has a ring shape, and the limiting portions 23, which are the same in number as the limiting portions 12, are provided at an outer edge of the hub piece 21, that is, four limiting portions 23, the limiting portions 23 being formed to protrude radially outwardly from the outer edge of the hub piece 21.
Referring to fig. 3, the mounting portions 11 of the two damper disks 10 are stacked together, the two damper disks 10 are fixed together by rivets 30 riveted to the rivet holes 111 of the mounting portions 11, the center plates 15 of the two damper disks 10 protrude in opposite directions so that a receiving chamber 18 is formed between the two damper disks 10, and referring to fig. 5 and 6, the hub pieces 21 of the hub 20 are received in the receiving chamber 18 so that the hub 20 can rotate relative to the damper disks 10, and when the hub 20 rotates relative to the damper disks 10, one side of the restricting portions of the hub pieces can collide with one side of the restricting portions of the damper disks, thereby stopping the rotation of the hub relative to the damper disks.
In this embodiment, referring to fig. 1, the extension lines 123 of the two side edges 121 of each of the limiting portions 12 in the circumferential direction of the center plate 15 pass through the center point of the center plate 15, and the included angle α of the extension lines 123 of the two side edges of the same limiting portion 12 in the circumferential direction of the center plate is 20 degrees.
Referring to fig. 4, on the hub plate 21, the extension lines 233 of the edges 231 of each of the restriction portions 23 in the circumferential direction of the hub plate 21 pass through the center point of the hub core 27, and the included angle β of the extension lines of the opposite edges of the adjacent two restriction portions 23 in the circumferential direction of the hub plate is 66.8 degrees.
Referring to fig. 1, four vibration damping windows are arranged on a central plate of the vibration damping disk, the four vibration damping windows are arranged at equal intervals around the center of the central plate, two opposite vibration damping windows form a group, the four vibration damping windows are divided into two groups, the two groups of vibration damping windows are different in size, wherein a first spring is arranged in two vibration damping windows 14 in one group of vibration damping windows, and a second spring is arranged in two vibration damping windows 16 in the other group of vibration damping windows; the length of the first spring is longer than that of the second spring; the limiting part and the vibration reduction window are arranged at intervals when being observed along the axial direction of the central plate of the vibration reduction plate.
Four equal-sized hub windows 25 are provided in the hub piece 21 of the hub 20 corresponding to the four vibration damping windows.
In this embodiment, the damper disc 10 is integrally stamped from a flat plate. Rivet 30 is a cylindrical rivet.
Referring to fig. 7, fig. 7 shows that when the hub 20 rotates counterclockwise relative to the damper disc 10, the edge 231 of the limiting portion 23 abuts against the edge 121 of the limiting portion 12, and the relative rotation of the hub and the damper disc is stopped; referring to fig. 8, fig. 8 shows that when the hub 20 rotates clockwise relative to the damper disc 10, the edge 231 on the other side of the limiting portion 23 abuts against the other edge 121 of the limiting portion 12, and the relative rotation of the hub and the damper disc is stopped.
In the embodiment, because the special-shaped flat pin is not adopted as a connecting piece for connecting the damping disc in the traditional design, and meanwhile, other types of rivets are not adopted as the connecting piece, the special-shaped flat pin is not adopted as a blocking piece for limiting the disc hub relative to the damping disc, the relative rotation angle between the disc hub and the damping disc is enlarged by 46-47 degrees, and the effect produced by the design of a large torsion angle in a 46.8-degree dual-mass flywheel in the prior art is achieved.
Claims (5)
1. The vibration damper with the large torsion angle comprises a vibration damper disc and a disc hub, and is characterized in that the disc hub is one piece, the number of the vibration damper discs is two, and the two vibration damper discs are positioned on two sides of the disc hub;
the vibration damping disk comprises a circular central plate, wherein the outer periphery of the central plate is bent along the axial direction of the central plate to form a cylindrical folded edge part, and one end of the folded edge part, which is far away from the central plate, extends outwards along the radial direction of the central plate to form a mounting part parallel to the central plate; the inner edge of the mounting part is provided with a set number of limiting parts, and the limiting parts are formed by the inward protruding of the inner edge of the mounting part along the radial direction of the central plate;
the disk hub comprises a disk hub core and disk hub pieces formed by extending outwards along the radial direction of the outer peripheral surface of the disk hub core, the disk hub pieces are annular, limiting parts with the same number as the limiting parts are arranged on the outer edges of the disk hub pieces, and the limiting parts are formed by protruding outwards along the radial direction of the outer edges of the disk hub pieces;
the mounting parts of the two vibration reduction discs are overlapped, the two vibration reduction discs are fixed together through rivets riveted on the mounting parts, the central plates of the two vibration reduction discs protrude in opposite directions, so that a containing cavity is formed between the two vibration reduction discs, the disc hub piece of the disc hub is contained in the containing cavity, the disc hub can rotate relative to the vibration reduction discs, and when the disc hub rotates relative to the vibration reduction discs, one side of the limiting part on the disc hub piece can collide with one side of the limiting part of the vibration reduction discs, so that the disc hub stops rotating relative to the vibration reduction discs;
the number of the limiting parts is four, the extension lines of the two side edges of each limiting part along the circumferential direction of the central plate pass through the central point of the central plate, and the included angle of the extension lines of the two side edges of the same limiting part along the circumferential direction of the central plate is 20 degrees;
the number of the limiting parts on the disk hub piece is four, the extension lines of the two side edges of each limiting part along the circumferential direction of the disk hub piece pass through the center point of the disk hub core, and the included angle of the extension lines of the opposite edges of the adjacent two limiting parts along the circumferential direction of the disk hub piece is 66.8 degrees;
and a riveting hole is formed in the mounting part of the vibration damping disc and used for fixing the two vibration damping discs together, and the riveting hole is positioned at the outer side of the limiting part.
2. The shock absorber of claim 1, wherein four vibration damping windows are arranged on a central plate of the vibration damping disk, the four vibration damping windows are arranged at equal intervals around the center of the central plate, two opposite vibration damping windows are divided into two groups, the two groups of vibration damping windows are different in size, a first spring is arranged in one group of vibration damping windows, and a second spring is arranged in the other group of vibration damping windows; the length of the first spring is longer than that of the second spring; the limiting part and the vibration reduction window are arranged at intervals when being observed along the axial direction of the central plate of the vibration reduction plate;
four hub windows of the same size are provided on the hub plate of the hub corresponding to the four vibration reduction windows.
3. The shock absorber of claim 1 wherein said retainer has a gap with said center plate as viewed in an axial direction of the center plate of the damping disc.
4. The shock absorber of claim 1 wherein said damping disc is integrally stamped from a flat plate.
5. The shock absorber according to any of claims 1-4, wherein said rivet is a cylindrical rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138090.4A CN106884891B (en) | 2017-03-09 | 2017-03-09 | Damper with large torsion angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710138090.4A CN106884891B (en) | 2017-03-09 | 2017-03-09 | Damper with large torsion angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884891A CN106884891A (en) | 2017-06-23 |
| CN106884891B true CN106884891B (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710138090.4A Active CN106884891B (en) | 2017-03-09 | 2017-03-09 | Damper with large torsion angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884891B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113557370B (en) * | 2019-07-01 | 2023-07-18 | 舍弗勒技术股份两合公司 | Clutch driven disc and clutch |
| CN112178126A (en) * | 2019-07-02 | 2021-01-05 | 舍弗勒技术股份两合公司 | Disc type vibration damper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942310A (en) * | 1995-07-24 | 1997-02-10 | Exedy Corp | Damper disc assembly |
| CN203641364U (en) * | 2013-12-30 | 2014-06-11 | 浙江华信汽车零部件有限公司 | Large-rotation-angle multilevel-damping driven disc assembly |
| CN206668791U (en) * | 2017-03-09 | 2017-11-24 | 芜湖大捷离合器有限公司 | A kind of shock absorber of big torsional angle |
-
2017
- 2017-03-09 CN CN201710138090.4A patent/CN106884891B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942310A (en) * | 1995-07-24 | 1997-02-10 | Exedy Corp | Damper disc assembly |
| CN203641364U (en) * | 2013-12-30 | 2014-06-11 | 浙江华信汽车零部件有限公司 | Large-rotation-angle multilevel-damping driven disc assembly |
| CN206668791U (en) * | 2017-03-09 | 2017-11-24 | 芜湖大捷离合器有限公司 | A kind of shock absorber of big torsional angle |
Non-Patent Citations (1)
| Title |
|---|
| 刘圣田,吕振华,邵成,袁念诗.双质量飞轮式扭振减振器.汽车技术.1997,(第01期),25-29. * |
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| CN106884891A (en) | 2017-06-23 |
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Denomination of invention: A shock absorber with a large torsion angle Effective date of registration: 20230920 Granted publication date: 20230428 Pledgee: Wuhu Yangzi rural commercial bank Limited by Share Ltd. Pledgor: WUHU DAJIE CLUTCH Co.,Ltd. Registration number: Y2023980057769 |