CN114658842B - Hydraulic damping device for reducing gear shifting impact of transmission electric gear shifting control mechanism - Google Patents
Hydraulic damping device for reducing gear shifting impact of transmission electric gear shifting control mechanism Download PDFInfo
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- CN114658842B CN114658842B CN202011545593.1A CN202011545593A CN114658842B CN 114658842 B CN114658842 B CN 114658842B CN 202011545593 A CN202011545593 A CN 202011545593A CN 114658842 B CN114658842 B CN 114658842B
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- damping module
- shifting
- damping
- shifting block
- annular cylinder
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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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
- F16H61/065—Smoothing ratio shift by controlling rate of change of fluid pressure using fluid control means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- General Details Of Gearings (AREA)
Abstract
A hydraulic damping device for reducing shift shock of an electric shift operating mechanism of a transmission, comprising: the gear selecting and shifting shaft, the transmission lubricating oil and the damping module are immersed in the transmission lubricating oil, and the damping module shifting head is rigidly connected with the gear selecting and shifting shaft; the damping module shifting block is in clearance fit with the damping module shifting block. The damping module includes: damping module shifting block, direction supporting ring, left direction stopper, block piece, annular cylinder body and right direction stopper, damping module shifting block passes through the direction ring and connects left and right direction stopper, and the direction stopper is arranged in the annular cylinder body inner chamber. The invention can obviously reduce the gear shifting impact of the transmission electric gear shifting control mechanism, simultaneously reduce the impact noise of the shifting head and the shifting block, and prolong the service life of the gear shifting actuating mechanism, and has the overall effects of simple structure, compact space structure, high reliability and low comprehensive cost.
Description
Technical Field
The invention relates to a technology in the field of automobile transmissions, in particular to a hydraulic damping device for reducing gear shifting impact of an electric gear shifting control mechanism of a transmission.
Background
The gear shifting device of the automatic transmission generally comprises a hydraulic actuating mechanism and an electric gear shifting actuating mechanism, and under the development trend of electric power, the electric gear shifting actuating mechanism has the characteristics of quick gear shifting response, long service life, high durability and high reliability, and is widely applied to the gear shifting device of the automatic transmission.
Disclosure of Invention
The invention provides a hydraulic damping device for reducing the gear shifting impact of an electric gear shifting control mechanism of a transmission, aiming at the defects in the prior art. The novel gear shifting mechanism can simultaneously realize two functions of reducing impact noise of the shifting head and the shifting block and prolonging the service life of the gear shifting actuating mechanism, and has the overall effects of simple structure, compact space structure, high reliability and low comprehensive cost.
The invention is realized by the following technical scheme:
the invention comprises the following steps: select gear shift axle, derailleur lubricating oil, damping module, wherein: the damping module is immersed in the lubricating oil of the transmission, and the shifting head of the damping module is rigidly connected with the gear selecting and shifting shaft; the damping module shifting block is in clearance fit with the damping module shifting block.
The damping module includes: damping module shifting block, direction supporting ring, left direction stopper, spacer block, annular cylinder body and right direction stopper, wherein: the damping module shifting block is connected with the left guide plug and the right guide plug through guide rings, and the guide plugs are arranged in the inner cavity of the annular cylinder body.
Technical effects
The invention integrally solves the technical problems that the existing transmission electric gear shifting actuating mechanism is easy to generate gear shifting impact and impact noise and influences the service life of the gear shifting actuating mechanism.
Compared with the prior art, the damping device of the device structure reduces the gear shifting impact, can effectively prolong the service lives of the gear shifting mechanism and the synchronizer system, can effectively reduce the impact sound when the electric gear shifting mechanism shifts gears, and can improve the NVH level and the comfort of the whole vehicle.
Drawings
FIG. 1 is a schematic view of the mounting location of the present invention and a steering mechanism;
FIG. 2 is a schematic diagram of a damping module according to the present invention;
FIG. 3 is a schematic view of a damping module dial and guide support ring;
FIG. 4 is a schematic illustration of a shift select shaft and an annular cylinder;
fig. 5 is a cross-sectional view of the annular cylinder.
In the figure: gear shifting block 1, gear selecting and shifting shaft 2, transmission lubricating oil 3, damping module shifting block 4, damping module shifting block 5, guide support ring 6, left guide plug 7, blocking block 8, annular cylinder body 9, right guide plug 10 and damping module 11.
Detailed Description
As shown in fig. 1 and 2, a hydraulic damping device for reducing shift shock of an electric shift operating mechanism of a transmission according to the present embodiment includes: a selector shaft 2 and a damping module 11, wherein: the damping module 11 is located below the liquid level of the transmission lubricating oil 3 so that the annular rigid cylinder body is filled with oil, pressure difference is formed when the piston rotates, the damping module shifting head 4 is fixedly connected with the gear selecting and shifting shaft 2, and the damping module shifting head 4 is in clearance fit with the damping module shifting block 5.
As shown in fig. 2 to 5, the damping module 11 includes: damping module shifting block 5, direction support ring 6, left direction stopper 7, spacer block 8, annular cylinder body 9 and right direction stopper 10, wherein: the annular cylinder body 9 is filled with lubricating oil, the damping module shifting block 5, the guide supporting ring 6 and the left and right guide plugs 7 and 10 are respectively and fixedly connected, and the guide plugs 7 and 10 are arranged in the inner cavity of the annular cylinder body 9.
The annular cylinder body 9 is fixedly connected with the blocking blocks 8, and the blocking blocks 8 partition the inner cavities at the left side and the right side of the annular cylinder body 9 to form two independent inner cavities.
The inner wall of the annular cylinder body 9 and the left and right guide plugs 7 and 10 have fit gaps, and the gaps are 0.05mm.
The ring center of the guide support ring 6 and the ring center of the annular cylinder body 9 are concentrically arranged.
The damping module shifting block 5 is provided with a groove, the width of the groove is about 2.5mm wider than the thickness of the damping module shifting block 4, the direction of the groove is the gear selecting and shifting direction of the gear selecting and shifting shaft 2, and the damping module shifting block 4 is arranged in the groove.
The annular cylinder 9 is rigidly fixed to the transmission housing.
When the gear shifting block 1 shifts clockwise, the gear selecting and shifting shaft 2 drives the damping module shifting block 4 to rotate clockwise, the damping module shifting block 5 also rotates leftwards under the thrust action of the damping module shifting block 4, and further drives the guide supporting ring 6, the left guide plug 7 and the right guide plug 10 to move clockwise together, and at the moment, the left guide plug 7 can compress transmission lubricating oil 3 in a left cavity of the annular cylinder body 9 to form a high-pressure area to generate resistance resisting clockwise movement; meanwhile, the right guide plug 10 is separated from the cavity on the right side of the annular cylinder body 9, the transmission lubricating oil 3 in the cavity forms a negative pressure area to generate a retarding force for preventing clockwise movement, the cavities on the left side and the right side of the annular cylinder body 9 generate superimposed damping force to achieve a damping effect, and the principle of generating the counterclockwise movement damping force is the same as that of clockwise movement.
The damping force is adjusted by changing the fit clearance between the inner wall of the annular cylinder body 9 and the left and right guide plugs 7 and 10.
The damping force generated by the device has wide selection range, can effectively reduce the impact during gear shifting, and well meets the performance requirement of the transmission electric gear shifting mechanism.
Through specific practical experiments, when the fit clearance between the inner wall of the annular cylinder body 9 and the left and right guide plugs 7 and 10 is 0.05mm, the gear shifting driving force is 550N, and the damping force is about 350N under the setting that the gear shifting speed is 0.1S.
In conclusion, the hydraulic damping device is integrated in the transmission electric gear shifting mechanism, so that the impact caused by large gear shifting force is remarkably reduced, the maximum impact noise is reduced by 10dB, and the durable service lives of the whole vehicle gear shifting actuating mechanism and the synchronizer system are prolonged by approximately 12%.
The foregoing embodiments may be partially modified in numerous ways by those skilled in the art without departing from the principles and spirit of the invention, the scope of which is defined in the claims and not by the foregoing embodiments, and all such implementations are within the scope of the invention.
Claims (5)
1. A hydraulic damping device for reducing shift shock of an electric shift operating mechanism of a transmission, comprising: select gear shift axle, derailleur lubricating oil, damping module, wherein: the damping module is immersed in the lubricating oil of the transmission, and the shifting head of the damping module is rigidly connected with the gear selecting and shifting shaft; the damping module shifting block is in clearance fit with the damping module shifting block;
the damping module includes: damping module shifting block, direction supporting ring, left direction stopper, spacer block, annular cylinder body and right direction stopper, wherein: the damping module shifting block is connected with a left guide plug and a right guide plug through guide supporting rings, the left guide plug and the right guide plug are arranged in the inner cavities of the annular cylinder body, the annular cylinder body is fixedly connected with the blocking blocks, and the blocking blocks partition the inner cavities at the left side and the right side of the annular cylinder body to form two independent inner cavities; when the gear shifting block shifts to one side, the gear selecting and shifting shaft drives the damping module shifting block to rotate in the same direction, and the damping module shifting block also rotates along with the damping module shifting block under the action of the thrust of the damping module shifting block, so that the guide supporting ring and the left and right guide plugs are driven to move in the same direction, at the moment, the one side guide plug can compress the annular cylinder body, and the transmission lubricating oil in the side cavity forms a high-pressure area to generate resistance resisting clockwise movement; meanwhile, the guide plugs at the other side are separated from the cavities at the opposite sides of the annular cylinder body, transmission lubricating oil in the cavities forms a negative pressure area to generate retarding force for preventing clockwise movement, and the cavities at the left side and the right side of the annular cylinder body generate superposition damping force to achieve a damping effect.
2. The hydraulic damping device for reducing gear shift shock of an electric gear shift operating mechanism of a transmission according to claim 1, wherein the guide support ring core and the ring core of the annular cylinder body are arranged concentrically.
3. The hydraulic damping device for reducing gear shift impact of an electric gear shift operating mechanism of a transmission according to claim 1, wherein the damping module shifting block is provided with a groove, the groove direction is the gear shift selecting moving direction of the gear shift selecting shaft, and the damping module shifting head is arranged in the groove.
4. The hydraulic damping device for reducing shift shock of an electric shift operating mechanism of a transmission according to claim 1, wherein said annular cylinder is rigidly fixed to the transmission housing.
5. The hydraulic damping device for reducing gear shift impact of a transmission electric gear shift operating mechanism according to claim 1, wherein the damping force is adjusted by changing fit clearances between inner walls of the annular cylinder and the left and right guide plugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011545593.1A CN114658842B (en) | 2020-12-24 | 2020-12-24 | Hydraulic damping device for reducing gear shifting impact of transmission electric gear shifting control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011545593.1A CN114658842B (en) | 2020-12-24 | 2020-12-24 | Hydraulic damping device for reducing gear shifting impact of transmission electric gear shifting control mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114658842A CN114658842A (en) | 2022-06-24 |
| CN114658842B true CN114658842B (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011545593.1A Active CN114658842B (en) | 2020-12-24 | 2020-12-24 | Hydraulic damping device for reducing gear shifting impact of transmission electric gear shifting control mechanism |
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| CN (1) | CN114658842B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817766A (en) * | 1984-06-21 | 1989-04-04 | Saab-Scania Aktiebolag | Arrangements for damping shifting movements in transmissions |
| CN2226667Y (en) * | 1994-10-23 | 1996-05-08 | 凤文成 | Main pressure regulating valve for hydraulic transmission power gear shift variable speed case |
| DE19653868A1 (en) * | 1996-01-09 | 1997-07-10 | Volkswagen Ag | Hydraulically operated gear shift |
| CN203162128U (en) * | 2012-03-21 | 2013-08-28 | 铃木株式会社 | Speed change device of speed changer |
| CN104315107A (en) * | 2014-10-17 | 2015-01-28 | 绍兴金道齿轮箱有限公司 | Hydraulic drive gearbox |
| CN207018494U (en) * | 2017-07-31 | 2018-02-16 | 东风商用车有限公司 | A kind of gearbox selector gearshift of built-in power assisted gearshift device |
| CN107965513A (en) * | 2016-10-20 | 2018-04-27 | 北京汽车动力总成有限公司 | A kind of gear-shifting inhaul cable structure and vehicle |
| CN208502382U (en) * | 2018-06-06 | 2019-02-15 | 河海大学 | A kind of Effects of Viscous Fluid Damper of damping automatic adjustment |
| CN209045021U (en) * | 2018-08-28 | 2019-06-28 | 重庆越博传动系统有限公司 | A kind of shift damping device |
| CN111692327A (en) * | 2020-06-30 | 2020-09-22 | 中国重汽集团大同齿轮有限公司 | Gear selecting and shifting mechanism of light commercial vehicle transmission |
-
2020
- 2020-12-24 CN CN202011545593.1A patent/CN114658842B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817766A (en) * | 1984-06-21 | 1989-04-04 | Saab-Scania Aktiebolag | Arrangements for damping shifting movements in transmissions |
| CN2226667Y (en) * | 1994-10-23 | 1996-05-08 | 凤文成 | Main pressure regulating valve for hydraulic transmission power gear shift variable speed case |
| DE19653868A1 (en) * | 1996-01-09 | 1997-07-10 | Volkswagen Ag | Hydraulically operated gear shift |
| CN203162128U (en) * | 2012-03-21 | 2013-08-28 | 铃木株式会社 | Speed change device of speed changer |
| CN104315107A (en) * | 2014-10-17 | 2015-01-28 | 绍兴金道齿轮箱有限公司 | Hydraulic drive gearbox |
| CN107965513A (en) * | 2016-10-20 | 2018-04-27 | 北京汽车动力总成有限公司 | A kind of gear-shifting inhaul cable structure and vehicle |
| CN207018494U (en) * | 2017-07-31 | 2018-02-16 | 东风商用车有限公司 | A kind of gearbox selector gearshift of built-in power assisted gearshift device |
| CN208502382U (en) * | 2018-06-06 | 2019-02-15 | 河海大学 | A kind of Effects of Viscous Fluid Damper of damping automatic adjustment |
| CN209045021U (en) * | 2018-08-28 | 2019-06-28 | 重庆越博传动系统有限公司 | A kind of shift damping device |
| CN111692327A (en) * | 2020-06-30 | 2020-09-22 | 中国重汽集团大同齿轮有限公司 | Gear selecting and shifting mechanism of light commercial vehicle transmission |
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| Publication number | Publication date |
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| CN114658842A (en) | 2022-06-24 |
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