CN112392912B - Torsion damper for AT transmission - Google Patents
Torsion damper for AT transmission Download PDFInfo
- Publication number
- CN112392912B CN112392912B CN202011419904.XA CN202011419904A CN112392912B CN 112392912 B CN112392912 B CN 112392912B CN 202011419904 A CN202011419904 A CN 202011419904A CN 112392912 B CN112392912 B CN 112392912B
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- China
- Prior art keywords
- damping
- disc
- rivet
- damping spring
- spring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- F16F15/131—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 the rotating system comprising two or more gyratory masses
- F16F15/133—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 the rotating system comprising two or more gyratory masses using springs as elastic members, e.g. metallic springs
- F16F15/134—Wound springs
- F16F15/1343—Wound springs characterised by the spring mounting
- F16F15/13461—Set of springs, e.g. springs within springs
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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
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
- F16D13/68—Attachments of plates or lamellae to their supports
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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
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/026—Springs wound- or coil-like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
A torsional vibration damper for an AT transmission belongs to the technical field of clutches. The present invention is directed to a torsional vibration damper for an AT transmission, which is improved in a damper so as to be capable of increasing the damper performance. The invention comprises a riveting structure of a friction disc and an improvement of a damping spring positioning mechanism. The driven disc is stamped by a flat material, so that the processing difficulty is low, the production efficiency is high, the two damping discs are riveted, the precision requirement on parts is not high, the assembly is easy, the thickness of the damping disc material is large, the torque transmission strength is large, the stop pin is limited, the strength is large, and the driven disc is not easy to damage.
Description
Technical Field
The invention belongs to the technical field of clutches.
Background
The torsional damper is a kind of locking damper used in the transmission, and is used for the power transmission of the engine and the transmission, and the power of the engine is transmitted to the transmission through the torsional damper. Mainly comprises an elastic element, a damping element and the like, wherein the elastic element (a damping spring mechanism) is used for reducing the torsional rigidity of the power train, so that the natural frequency of the power train is reduced, and vibration and noise are reduced.
During the high-speed running of the vehicle, a locking clutch in the hydraulic torque converter is combined, and a torsional damper in the locking clutch transmits the power of an engine to a transmission to relieve the torsional impact load of a transmission system under various working conditions.
The prior art has the following defects: the transmission plate, the two damping plates and the friction plate are riveted together, the requirement on the position degree of a rivet hole of a part is high, and time and labor are wasted in the assembling process. Secondly, the driven disc convex claws play a limiting role so as to protect the spring from being pressed, but the driven disc convex claws are very small, have weak limiting strength and are easy to damage, and cannot play a role in protecting the damping spring.
Disclosure of Invention
The present invention is directed to a torsional vibration damper for an AT transmission, which is improved in a damper so as to be capable of increasing the damper performance.
The invention comprises a riveting structure of a friction disc and an improved damping spring positioning mechanism;
riveting structure of friction disk: the outer rings of the left damping disc and the right damping disc are in close contact, rivet hiding grooves are correspondingly formed in the outer sides of the left damping disc and the right damping disc, rivet penetrating holes are formed in friction plates corresponding to the rivet hiding grooves, the outer diameters of the rivet penetrating holes are larger than that of the rivet hiding grooves, and the hidden rivets are completely hidden in the rivet hiding grooves to rivet the left damping disc and the right damping disc together; a left damping disc boss and a right damping disc boss are respectively arranged at the positions where the left damping disc and the right damping disc clamp the driven disc, and the inner surfaces of the left damping disc boss and the right damping disc boss are in close contact with the driven disc;
damping spring positioning mechanism: the damping spring that places in the damping spring window is placed to the damping disk inside has placed interior damping spring, and interior damping spring one end is the same with damping spring and pushes up on damping spring window lateral wall, and the other end pushes up on the stop pin cap, and the stop pin is inserted in interior damping spring, and the stop pin cap outside pushes up on damping spring window lateral wall.
The driven disc is stamped by a flat material, so that the processing difficulty is low, the production efficiency is high, the two damping discs are riveted, the precision requirement on parts is not high, the assembly is easy, the thickness of the damping disc material is large, the torque transmission strength is large, the stop pin is limited, the strength is large, and the driven disc is not easy to damage.
Drawings
FIG. 1 is an external view of the integrated cushioning device of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1 of the present invention;
FIG. 3 is an enlarged view of portion I of FIG. 2 of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;
FIG. 5 is an external schematic view of a prior art integrated cushioning device;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 5;
fig. 7 is a partially enlarged view of fig. 6.
Detailed Description
The invention mainly aims at improving two parts of a damping device, namely a riveting structure of a friction disc and a damping spring positioning mechanism.
Riveted structure of friction disk: the outer rings of the left damping disc 2 and the right damping disc 6 are in close contact, rivet hiding grooves 11 are correspondingly formed in the outer sides of the left damping disc 2 and the right damping disc 6, rivet penetrating holes are formed in friction plates 5 corresponding to the rivet hiding grooves 11, the outer diameters of the rivet penetrating holes are larger than the outer diameter of the rivet hiding grooves 11, and the hidden rivets 1 are completely hidden in the rivet hiding grooves 11 to rivet the left damping disc 2 and the right damping disc 6 together; the left damping disc boss 9 and the right damping disc boss 10 are respectively arranged at the positions where the driven disc 3 is clamped by the left damping disc 2 and the right damping disc 6, and the inner surfaces of the left damping disc boss 9 and the right damping disc boss 10 are in close contact with the driven disc 3;
damping spring positioning mechanism: the damping spring 7 placed in the damping spring window is placed on the damping disc, the inner damping spring 4 is placed inside the damping spring 7, one end of the inner damping spring 4 is propped against the side wall of the damping spring window like the damping spring 7, the other end of the inner damping spring is propped against the stop pin cap 12, the stop pin 8 is inserted into the inner damping spring 4, and the outer side of the stop pin cap 12 is propped against the side wall of the damping spring window.
The conventional torsional vibration damping structure is shown in fig. 5 and 6, the power of an engine is transmitted to a paper-based friction plate of a torsional vibration damper, the paper-based friction plate is adhered to a transmission disc, the transmission disc is riveted with a vibration damping disc to push a vibration damping spring, when the vibration damping spring is compressed to a certain degree, the vibration damping spring pushes a driven disc, and a spline of the driven disc is connected with a shaft, so that the power is transmitted to the side of a transmission case. Like figure 7, paper friction disc is pasted on the driving plate, with left damping dish and right damping dish, rivets together 3 pieces, and this requires extremely high to driving plate rivet hole, left damping dish rivet hole, right damping dish rivet hole size and position degree, and the riveting in-process needs the operator to adjust three part hole is whole well, carries out the through-rivet riveting, has prolonged man-hour greatly, and the operation is inconvenient. As shown in figure 3, the driven disc convex claws play a limiting role so as to protect the spring from being pressed, but the driven disc convex claws are small in size, weak in limiting strength, easy to damage and incapable of playing a role in protecting the damping spring.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a high-strength torsional damper comprises friction plates, wherein the friction plates are respectively connected with a left damping disc and a right damping disc through sticking, and the damping discs are connected with the damping discs through rivets. The damping springs are uniformly distributed in the spring windows of the left damping disc and the right damping disc and are coated by the flanging of the spring windows of the damping disc and the right damping disc. The damping spring is provided with a stop pin for limiting, as shown in fig. 1 and 2. The driven disc is connected with the transmission through a spline.
When the torsional damper works, the hydraulic torque converter rotates through the left damping disc and the right damping disc, the spring windows of the left damping disc and the right damping disc compress the damping springs, the damping springs drive the driven disc to rotate, and the driven disc transmits torque to the speed changer through the spline. The damping spring is limited by the stop pin and the spring windows of the two damping disks in the working process, so that the damping spring is protected.
If fig. 3, the paper friction disc directly pastes on left damping disc, right damping disc, and this kind of structure only needs two parts of left damping disc, right damping disc to rivet, and the position degree requirement in part rivet hole does not need very strict, and the riveting in-process, operating personnel also only need aim at the hole of 2 parts, carry out the through bolt again, labour saving and time saving.
As shown in fig. 3, a small gap is formed between the distance between the boss of the left damping disk and the boss of the right damping disk and the driven disk, so that the driven disk can rotate freely, and excessive play cannot be generated at the same time, thereby avoiding vibration noise and reducing the service life of parts. The punching press processing degree of difficulty need be considered to the boss width, if too narrow can improve the processing degree of difficulty, and the mould easily weares and teares, if too wide, the plane degree can't be guaranteed, easily with the driven plate contact, produce certain influence to the free rotation, can not smooth-going transmission power, also can produce vibration noise. The chamfer angle at the bending part of the boss is ensured to be in smooth transition so as to avoid influencing the strength of the part.
As shown in FIG. 4, a stop pin part is added, when the damping disc pushes the spring to rotate, the stop pin is contacted with the driven disc, and the spring can not be compressed again, so that the function of protecting the spring from being compressed is achieved.
Claims (1)
1. The utility model provides a torsional damper for AT derailleur, the outer lane in close contact with of left damping disk (2) and right damping disk (6), damping spring (7) inside placing interior damping spring (4), its characterized in that of placing in the damping spring window are placed to the damping disk: the improved two parts of the riveting structure of the friction disc and the damping spring positioning mechanism are included;
riveting structure of friction disk: the left damping disc (2) and the right damping disc (6) are correspondingly provided with rivet hiding grooves (11), rivet penetrating holes are formed in the positions, corresponding to the friction plates (5) of the rivet hiding grooves (11), of the rivet, the outer diameters of the rivet penetrating holes are larger than the outer diameter of the rivet hiding grooves (11), and the hidden rivets (1) are completely hidden in the rivet hiding grooves (11) to rivet the left damping disc (2) and the right damping disc (6) together; a left damping disc boss (9) and a right damping disc boss (10) are respectively arranged at the positions where the left damping disc (2) and the right damping disc (6) clamp the driven disc (3), and the inner surfaces of the left damping disc boss (9) and the right damping disc boss (10) are tightly contacted with the driven disc (3);
damping spring positioning mechanism: one end of the inner damping spring (4) is propped against the side wall of the damping spring window as the damping spring (7), the other end of the inner damping spring is propped against the stop pin cap (12), the stop pin (8) is inserted into the inner damping spring (4), and the outer side of the stop pin cap (12) is propped against the side wall of the damping spring window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419904.XA CN112392912B (en) | 2020-12-07 | 2020-12-07 | Torsion damper for AT transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419904.XA CN112392912B (en) | 2020-12-07 | 2020-12-07 | Torsion damper for AT transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112392912A CN112392912A (en) | 2021-02-23 |
| CN112392912B true CN112392912B (en) | 2022-07-08 |
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ID=74604469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011419904.XA Active CN112392912B (en) | 2020-12-07 | 2020-12-07 | Torsion damper for AT transmission |
Country Status (1)
| Country | Link |
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| CN (1) | CN112392912B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2932236B1 (en) * | 2008-06-04 | 2010-10-15 | Valeo Materiaux De Friction Sa | ATTACHING FRICTION LINING TO A CLUTCH DISC |
| CN201354813Y (en) * | 2009-03-04 | 2009-12-02 | 杭州西湖汽车零部件集团股份有限公司 | Multi-adaptive and rigidity-variable clutch disc assembly |
| CN104373479A (en) * | 2014-11-11 | 2015-02-25 | 重庆市腾瀚工贸有限公司 | Connecting structure for driven disc of friction clutch |
| CN104595404A (en) * | 2014-11-28 | 2015-05-06 | 长春一东离合器股份有限公司 | Damper provided with damping system protecting device |
| CN205559607U (en) * | 2016-04-20 | 2016-09-07 | 沈阳平和法雷奥汽车传动***有限公司 | Driven disc assembly of automobile clutch |
| 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 |
| CN208311367U (en) * | 2018-06-07 | 2019-01-01 | 沧州巨擎汽车配件有限公司 | Multi-rate torsional vibration-proof structure and torsional vibration damper and clutch disc with the structure |
| CN209228942U (en) * | 2018-11-05 | 2019-08-09 | 重庆红宇精密工业有限责任公司 | A kind of torsional vibration damper |
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2020
- 2020-12-07 CN CN202011419904.XA patent/CN112392912B/en active Active
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| Publication number | Publication date |
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| CN112392912A (en) | 2021-02-23 |
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