CN114658842A - Hydraulic damping device for reducing gear shifting impact of electric gear shifting control mechanism of transmission - Google Patents
Hydraulic damping device for reducing gear shifting impact of electric gear shifting control mechanism of transmission Download PDFInfo
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- CN114658842A CN114658842A CN202011545593.1A CN202011545593A CN114658842A CN 114658842 A CN114658842 A CN 114658842A CN 202011545593 A CN202011545593 A CN 202011545593A CN 114658842 A CN114658842 A CN 114658842A
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- shifting
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- damping module
- transmission
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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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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
A hydraulic damping device for reducing shifting shocks of an electric shift operating mechanism of a transmission, comprising: the gear selecting and shifting device comprises a gear selecting and shifting shaft, transmission lubricating oil and a damping module, wherein the damping module is immersed in the transmission lubricating oil, and a shifting head of the damping module is rigidly connected with the gear selecting and shifting shaft; the damping module shifting head and the damping module shifting block are in clearance fit. The damping module includes: the damping module shifting block is connected with the left guide plug and the right guide plug through the guide ring, and the guide plugs are arranged in the inner cavity of the annular cylinder body. The invention can obviously reduce the gear shifting impact of the electric gear shifting control mechanism of the transmission, simultaneously realize the reduction of the impact noise of the shifting head and the shifting block and the improvement of 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 the 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 trend of electric development, the electric gear shifting actuating mechanism is gradually widely applied to the gear shifting device of the automatic transmission due to the characteristics of quick gear shifting response, long service life, high durability and high reliability.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the hydraulic damping device for reducing the gear shifting impact of the electric gear shifting control mechanism of the transmission, and the gear shifting impact of the electric gear shifting control mechanism of the transmission is reduced. The two functions of reducing the impact noise of the shifting head and the shifting block and prolonging the service life of the gear shifting actuating mechanism can be realized simultaneously, and the gear shifting actuating mechanism 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 lubricating oil of the transmission, and a shifting head of the damping module is rigidly connected with the gear selecting and shifting shaft; the damping module shifting head and the damping module shifting block are in clearance fit.
The damping module includes: damping module shifting block, direction support ring, left side direction stopper, barrier block, annular cylinder body and right side direction stopper, wherein: the damping module shifting block is connected with a left guide plug and a 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 when acting, generates impact noise and influences the service life of the gear shifting actuating mechanism.
Compared with the prior art, the invention reduces the impact of gear shifting through the damping device with the device structure, can effectively prolong the service life 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 present invention in an installed position with respect to an operating mechanism;
FIG. 2 is a schematic structural diagram of a damping module according to the present invention;
FIG. 3 is a schematic view of a damping module paddle and guide support ring;
FIG. 4 is a schematic view of the selector shaft and the annular cylinder;
FIG. 5 is a cross-sectional view of the annular cylinder.
In the figure: the gear shifting device comprises a gear shifting head 1, a gear selecting and shifting shaft 2, transmission lubricating oil 3, a damping module shifting head 4, a damping module shifting block 5, a guide support ring 6, a left guide plug 7, a blocking block 8, an annular cylinder body 9, a right guide plug 10 and a 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: gear selecting shaft 2 and damping module 11, wherein: the damping module 11 is located below the liquid level of the lubricating oil 3 of the transmission, 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 and the damping module shifting block 5 are in clearance fit.
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, barrier 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 support ring 6, the left guide plug 7, the right guide plug 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 block 8, and the blocking block 8 blocks 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 a fit clearance of 0.05 mm.
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 head 4, the direction of the groove is the gear selecting moving direction of the gear selecting and shifting shaft 2, and the damping module shifting head 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 then drives the guide support ring 6, the left guide plug 7 and the right guide plug 10 to move clockwise together, at the moment, the left guide plug 7 can compress the transmission lubricating oil 3 in the left cavity of the annular cylinder body 9 to form a high-pressure area, and resistance for resisting clockwise movement is generated; meanwhile, the right guide plug 10 is separated from the right cavity 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 superposed damping force to achieve a damping effect, and the principle of generating the anticlockwise movement damping force is the same as that of the clockwise movement damping force.
The magnitude of the damping force is adjusted by changing the fit clearance between the inner wall of the annular cylinder 9 and the left and right guide plugs 7 and 10.
The device has wide selection range of generated damping force, can effectively reduce the impact during gear shifting, and well meets the performance requirement of the electric gear shifting mechanism of the transmission.
Through concrete actual experiment, when the fit clearance of 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 realized damping force is about 350N under the condition that the gear shifting speed is 0.1S.
In conclusion, the hydraulic damping device is integrated in the electric gear shifting mechanism of the transmission, so that the impact caused by large gear shifting force is obviously reduced, the maximum impact noise is reduced by 10dB, and the durability life of the gear shifting actuating mechanism and the synchronizer system of the whole vehicle is prolonged by nearly 12%.
The foregoing embodiments may be modified in many different ways by those skilled in the art without departing from the spirit and scope of the invention, which is defined by the appended claims and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (5)
1. A hydraulic damping device for reducing shifting shocks 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 lubricating oil of the transmission, and a shifting head of the damping module is rigidly connected with the gear selecting and shifting shaft; the damping module shifting head is in clearance fit with the damping module shifting block;
the damping module includes: damping module shifting block, direction support ring, left side direction stopper, barrier block, annular cylinder body and right side direction stopper, wherein: the damping module shifting block is connected with a left guide plug and a right guide plug through guide rings, the guide plugs are arranged in inner cavities of the annular cylinder bodies, the annular cylinder bodies are fixedly connected with the blocking blocks, and the blocking blocks block the inner cavities on the left side and the right side of the annular cylinder bodies 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, the damping module shifting block also rotates along with the damping module shifting block under the thrust action of the damping module shifting block, so that the guide support ring and the guide plug are driven to move in the same direction, and the guide plug on one side can compress transmission lubricating oil in the cavity on the side of the annular cylinder body to form a high-pressure area so as to generate resistance to clockwise movement; meanwhile, the other side guide plug is separated from the cavity on the opposite side of the annular cylinder body, transmission lubricating oil in the cavity forms a negative pressure area to generate a retarding force for preventing clockwise movement, and the cavities on the left side and the right side of the annular cylinder body generate superposed damping force to achieve a damping effect.
2. The hydraulic damping device for reducing shift shock in an electrical shift operating mechanism of a transmission of claim 1, wherein said guide support ring center is concentric with said annular cylinder center.
3. The hydraulic damping device for reducing shift shock of an electric shift operating mechanism of a transmission as set forth in claim 1, wherein said damping block shift block has a recess in a direction of shift shaft shift movement, and the damping block shift block is disposed in the recess.
4. The hydraulic damping apparatus for reducing shift shock in an electric shift operating mechanism of a transmission as set forth in claim 1, wherein said annular cylinder is rigidly secured to the transmission housing.
5. The hydraulic damping device for reducing shift shock of an electric shift operating mechanism of a transmission as set forth in claim 1, wherein the magnitude of the damping force is adjusted by changing the fit clearance between the inner wall 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 true CN114658842A (en) | 2022-06-24 |
| CN114658842B CN114658842B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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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 | Gear selecting and shifting mechanism of gearbox with built-in gear shifting booster |
| 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 | Gear selecting and shifting mechanism of gearbox with built-in gear shifting booster |
| 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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| CN114658842B (en) | 2023-09-26 |
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