CN105736693B - Automatic transmission parking locking mechanism - Google Patents
Automatic transmission parking locking mechanism Download PDFInfo
- Publication number
- CN105736693B CN105736693B CN201610296587.4A CN201610296587A CN105736693B CN 105736693 B CN105736693 B CN 105736693B CN 201610296587 A CN201610296587 A CN 201610296587A CN 105736693 B CN105736693 B CN 105736693B
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- Prior art keywords
- pin
- parking
- transmission
- guide plate
- case
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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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
- F16H63/3433—Details of latch mechanisms, e.g. for keeping pawls out of engagement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
A kind of automatic transmission parking locking mechanism, it include: the parking gear being set on transmission countershaft, the park pawl being meshed with parking gear, execution pin for driving park pawl to engage with parking gear, the guide plate of pin movement is executed and for carrying the parking pedestal for executing pin stress for being oriented to, wherein: guide plate is connected on parking pedestal, pin is executed across guide part, one end of park pawl and detent pin are socketed and surround detent pin rotation, the other end is rotatably dispose in inside speed changer, and the park pawl rotates between the lock position engaged with parking gear and the releasing position being detached from parking gear.The present apparatus has the advantages that compact-sized, number of parts is few, it is low to loosen risk.
Description
Technical field
The present invention relates to a kind of technology in automotive transmission field, specifically a kind of parking for automatic transmission
Mechanism.
Background technique
The halting mechanism of existing automatic transmission, parking pedestal with pawl, push rod assembly and parking gear by matching
It closes and realizes parking function, and provide stress supporting point during parking for push rod assembly.Push rod assembly during the motion, needs
Good guiding role is wanted, and under non-P grades of state, needs to prevent push rod assembly bring due to vibration from shaking noise, guiding
Plate plays this.In the related technology, parking pedestal and guide plate are set on case of transmission by bolt, positioning accuracy compared with
Low, assembly complexity, element precision require height, and the power as suffered by parking pedestal or guide plate can act on speed change by bolt
On device shell, thus higher to the intensity requirement of case of transmission and bolt, the risk that bolt is hit load and loosens is larger.
In addition, the mounting means of bolt needs to occupy biggish space.
Summary of the invention
The present invention In view of the above shortcomings of the prior art, proposes a kind of automatic transmission parking locking mechanism, has
Advantage compact-sized, number of parts is few, loosening risk is low.
The present invention is achieved by the following technical solutions:
The present invention include: the parking gear being set on transmission countershaft, the park pawl being meshed with parking gear,
It executes pin for drive that park pawl engages with parking gear, execute the guide plate of pin movement and for carrying for being oriented to
Execute the parking pedestal of pin stress, in which: guide plate is connected on parking pedestal, is executed and is sold across guide part, park pawl
One end and detent pin be socketeds and surround detent pin and rotate, and the other end is rotatably dispose in inside speed changer, and the park pawl with
It is rotated between the lock position of parking gear engagement and the releasing position being detached from parking gear.
The parking pedestal is set on the inner wall of case of transmission, the cross of the parking pedestal and shell matching part
Section is that round and interference is fitted in the installation hole slot on the inner wall of case of transmission.
The park pawl is equipped with return spring and detent pin, in which: the both ends of detent pin are by case of transmission branch
Support, one end of return spring are buckled in park pawl, and the other end is stuck on case of transmission as return torsional spring, and will be described
Park pawl often pushes releasing position to.
The execution pin is set on push rod using the pretightning force of preloading spring, and push rod one end is connected in rocker plate,
The other end is in contact with execution pin with parking pedestal.
By the main reduction ratio for subtracting gear pair, locking demand torque is reduced；Locking power is executed into pin by guiding simultaneously
Conduction is caused on case of transmission rather than is acted on selector shaft.
Technical effect
Compared with prior art, guide plate of the present invention is snapped on parking pedestal, and parking pedestal is pressed in case of transmission
On, such structure reduces number of parts, and does not need the fixed parking pedestal of bolt or guide plate, reduces loosening risk, subtracts
Lack the space for occupying speed changer, while reducing assembly cost.Guide plate is punching press plate, can basis with pin gap is executed
Different stalls need to carry out bending adjustment, are accurately oriented to, are avoided single to the motion state for executing pin under different stalls
The problem of partial gear steering capability difference caused by shape.Particularly, between guide plate and execution pin keep the smallest at D grades
Gap, to guarantee vehicle when advancing, executing pin will not shake in guide plate and be made a noise.Guide plate is sheet member, is had
One elasticity is further reduced under non-P grades of state to execute to sell and shakes noise in guide plate.
Detailed description of the invention
Fig. 1 structure of the invention stereoscopic schematic diagram；
Fig. 2 is parking base schematic diagram；
Fig. 3 is guide plate schematic diagram；
Fig. 4 is park pawl assembly diagram；
Fig. 5 is park pawl assembly and push rod assembly schematic diagram；
In figure: parking gear 1, park pawl 2, execute pin 3, guide plate 4, parking pedestal 5, return spring 6, rocker arm shaft 7,
Rocker plate 8, drag-line plate 10, preloading spring 11, push rod 12, detent pin 13, arranges pin 14 at drag-line ball 9 surely.
Specific embodiment
As shown in Figure 1, the present embodiment include: the parking gear 1 being set on transmission countershaft, with 1 phase of parking gear
The park pawl 2 of engagement, the execution pin 3 for driving park pawl 2 to engage with parking gear 1 execute the movement of pin 3 for being oriented to
Guide plate 4 and for carry execute 3 stress of pin parking pedestal 5, in which: guide plate 4 is connected on parking pedestal 5, is held
Marketing 3 passes through guide part, and one end of park pawl 2 and detent pin are socketed and surround detent pin rotation, and the other end is rotatably dispose in
Inside speed changer, and the park pawl 2 is in the lock position engaged with parking gear 1 and the release position being detached from parking gear 1
It can be rotated between setting.
As shown in Figure 1, the middle part of the rocker plate 8 is connect with rocker arm shaft 7,8 one end of rocker plate is connect with push rod 12, separately
One end is equipped with positioning groove, which is accurately positioned by being fitted in the cooperation of row's pin 14 of determining on case of transmission with interference
Gear positions.
The rocker arm shaft 7 passes through case of transmission, and one end is connect with rocker plate 8, and the other end is connect with drag-line plate 10,
Drag-line plate 10 is connect with drag-line ball 9.
As shown in Fig. 2, the parking pedestal 5 is set on the inner wall of case of transmission, the parking pedestal 5 and shell
The cross section of matching part is that round and interference is fitted in the installation hole slot on the inner wall of case of transmission, can be shown in this way
Work reduces number of parts, and does not need the fixed parking pedestal of bolt or guide plate, reduces loosening risk, reduces occupancy and become
The space of fast device, while reducing assembly cost.
As shown in figure 3, the guide plate is flexible thin wall punching press plate, to be further reduced non-P grades of shape
Pin is executed under state and shakes noise in guide plate, which can be snapped in by hand on parking pedestal, easy to assembly.
There is the circumferential good fit positioning with axial direction between parking pedestal, it is ensured that guiding at the buckle of the guide plate
Part will not rotate or fall off during the work time；And guide plate can need to carry out according to different stalls with pin gap is executed
Bending adjustment, is accurately oriented to the motion state for executing pin under different stalls, avoids part shelves caused by single shape
The problem of position steering capability difference.
Particularly, guide plate and execution pin keep the smallest gap at D grades, to guarantee that vehicle when advancing, executes pin
It will not shake and make a noise in guide plate.
As shown in Figure 1 and Figure 4, the park pawl 2 is equipped with return spring 6 and detent pin 13, in which: detent pin 13
Both ends supported by case of transmission, one end of return spring 6 is buckled in park pawl, and the other end, which is stuck on case of transmission, to be made
For return torsional spring, and often push the park pawl 2 to releasing position.
As shown in figure 5, the execution pin 3 is set on push rod 12 using the pretightning force of preloading spring 11, push rod 12 1
End is connected in rocker plate 8, and the other end is in contact with execution pin 3 with parking pedestal 5.
Guide plate in the present apparatus can be accurately oriented to according to the motion state for executing pin under different stalls, be avoided
The problem of partial gear steering capability difference in the prior art, guide plate and execution pin keep the smallest gap at D grades, to guarantee
When advancing, parking push rod will not shake in guide plate and make a noise vehicle；Parking pedestal can directly interference be press-fitted in
On case of transmission, number of parts is few, occupies little space, easy to assembly, and function is reliable.
The present apparatus is reduced locking demand torque by the main reduction ratio for subtracting gear pair, while locking power is held by guiding
It in marketing conduction to case of transmission, will not act on selector shaft, therefore gear shift rotation is easy, shift-feel is good；In addition, this
Device can carry out parking movement using traditional drag-line mode, can also be acted using electric device or hydraulic device, electricity
Dynamic device or hydraulic device or pneumatic device can be hung on outside speed changer outside, be not take up speed changer inner space.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the principle of the invention and objective with difference
Mode carry out local directed complete set to it, protection scope of the present invention is subject to claims and not by above-mentioned specific implementation institute
Limit, each implementation within its scope is by the constraint of the present invention.
Claims (1)
1. a kind of automatic transmission parking locking mechanism characterized by comprising the park tooth being set on transmission countershaft
Wheel, the park pawl being meshed with parking gear, the execution pin for driving park pawl to engage with parking gear, for being oriented to
Execute the guide plate of pin movement and for carrying the parking pedestal for executing pin stress, in which: hold under non-P grades of state for reducing
It is on sale throughout and shakes the guide plate of noise in guide plate as flexible thin wall drawing quality steel sheet part and be snapped on parking pedestal
And there is between parking pedestal the circumferential cooperation with axial direction to position at buckle, pin is executed across guide part, one end of park pawl
Detent pin rotation is socketed and surrounded with detent pin, the other end is rotatably dispose in inside speed changer, and the park pawl with parking
It is rotated between the lock position of gear engagement and the releasing position being detached from parking gear, it will by the main reduction ratio for subtracting gear pair
Locking power is acted on selector shaft by executing in pin conduction to case of transmission while locking demand torque reduces；
The park pawl is equipped with return spring and detent pin, in which: the both ends of detent pin are supported by case of transmission, are returned
One end of position spring is buckled in park pawl, and the other end is stuck on case of transmission as return spring, and by the parking
Pawl often pushes releasing position to, and the execution pin is set on push rod using the pretightning force of preloading spring, the connection of push rod one end
In rocker plate, the other end is in contact with execution pin with parking pedestal；
The section of the guide plate is rectangular configuration, and one end is equipped with fin for buckling parking pedestal, guide plate with hold
Marketing gap can need to carry out bending adjustment according to different stalls, carry out to the motion state for executing pin under different stalls accurate
Guiding, and the smallest gap is kept at D grades, to guarantee vehicle when advancing, executing pin will not shake in guide plate and be sent out
Noise out；
The middle part of the rocker plate and rocker arm axis connection, rocker plate one end are connect with push rod, and the other end is equipped with positioning groove, should
Positioning groove sells cooperation by being fitted in the row that determines on case of transmission with interference to be accurately positioned gear positions；
The rocker arm shaft passes through case of transmission, and one end connect with rocker plate, and the other end is connect with drag-line plate, drag-line plate and
The connection of drag-line ball；
The parking pedestal is set on the inner wall of case of transmission；
The cross section of the parking pedestal and case of transmission matching part is that round and interference is fitted in case of transmission
In installation hole slot on inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296587.4A CN105736693B (en) | 2016-05-06 | 2016-05-06 | Automatic transmission parking locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296587.4A CN105736693B (en) | 2016-05-06 | 2016-05-06 | Automatic transmission parking locking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736693A CN105736693A (en) | 2016-07-06 |
| CN105736693B true CN105736693B (en) | 2019-05-07 |
Family
ID=56288065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610296587.4A Active CN105736693B (en) | 2016-05-06 | 2016-05-06 | Automatic transmission parking locking mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN105736693B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087545B (en) * | 2016-11-22 | 2019-08-13 | 上海汽车集团股份有限公司 | Parking and braking mechanism, parking braking system, automatic gear-box and automobile |
| CN106763730B (en) * | 2017-03-20 | 2019-04-09 | 中汽研（天津）汽车工程研究院有限公司 | A kind of halting mechanism of electric car |
| CN108278365A (en) * | 2018-03-21 | 2018-07-13 | 重庆青山工业有限责任公司 | Automatic transmission mechanical parking mechanism |
| CN108916377B (en) * | 2018-08-31 | 2024-04-02 | 海马汽车有限公司 | Parking execution device, double-clutch transmission and automobile |
| CN114838125A (en) * | 2022-03-28 | 2022-08-02 | 重庆长安汽车股份有限公司 | Transmission parking mechanism, transmission and automobile |
| CN115046007B (en) * | 2022-06-17 | 2023-04-14 | 安徽江淮汽车集团股份有限公司 | Electronic parking mechanism of transmission |
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| CN101275673A (en) * | 2007-03-27 | 2008-10-01 | 三菱自动车工业株式会社 | Parking mechanism for a transmission |
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| CN204921951U (en) * | 2015-06-29 | 2015-12-30 | 上汽通用汽车有限公司 | Manual gear shifting ware selects shift decoupling zero device, manual gear shifting ware and car |
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| DE10359327A1 (en) * | 2003-12-17 | 2005-07-21 | Zf Friedrichshafen Ag | Automatic gearbox parking lock for motor vehicle, has locking component to lock blocking component by parking lock mechanism, when gear is engaged in driving position, where mechanism directly leads to movement of blocking component |
| JP5048713B2 (en) * | 2009-05-13 | 2012-10-17 | ジヤトコ株式会社 | Parking mechanism |
| FR2979134B1 (en) * | 2011-08-17 | 2013-08-30 | Peugeot Citroen Automobiles Sa | PARKING LOCK SYSTEM FOR A TRANSMISSION HAVING A AUTOMATED TRANSMISSION |
| DE102012216308B4 (en) * | 2012-09-13 | 2014-11-13 | Zf Friedrichshafen Ag | Parking lock for a motor vehicle transmission |
| CN203395167U (en) * | 2013-07-04 | 2014-01-15 | 中国第一汽车股份有限公司 | Parking brake pull rod assembly of double-clutch type automatic transmission |
| CN105114622A (en) * | 2015-09-15 | 2015-12-02 | 重庆长安汽车股份有限公司 | Parking locking mechanism for automatic transmissions |
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|---|---|---|---|---|
| CN101275673A (en) * | 2007-03-27 | 2008-10-01 | 三菱自动车工业株式会社 | Parking mechanism for a transmission |
| CN102777596A (en) * | 2012-07-26 | 2012-11-14 | 长城汽车股份有限公司 | Self-locking device of gears of speed changer |
| CN203438856U (en) * | 2013-08-06 | 2014-02-19 | 安徽江淮汽车股份有限公司 | Support frame for gear-selecting/shifting flexible shaft |
| CN204041981U (en) * | 2014-04-30 | 2014-12-24 | 长城汽车股份有限公司 | Transmission for vehicles and vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105736693A (en) | 2016-07-06 |
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