CN110081169A - Automatic transmission electric parking mechanism - Google Patents
Automatic transmission electric parking mechanism Download PDFInfo
- Publication number
- CN110081169A CN110081169A CN201910392974.1A CN201910392974A CN110081169A CN 110081169 A CN110081169 A CN 110081169A CN 201910392974 A CN201910392974 A CN 201910392974A CN 110081169 A CN110081169 A CN 110081169A
- Authority
- CN
- China
- Prior art keywords
- gear
- parking
- cam
- park pawl
- shaft
- Prior art date
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 47
- 230000005540 biological transmission Effects 0.000 title claims abstract description 12
- 210000000078 claw Anatomy 0.000 claims abstract description 8
- 210000003781 tooth socket Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
- F16H63/3466—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire using electric motors
Abstract
The invention discloses a kind of automatic transmission electric parking mechanisms, including parking motor, gear reduction, cam mechanism, straight-line motion mechanism, park pawl, return spring and parking gear, the output shaft of the parking motor is connect by gear reduction with cam mechanism, and the cam mechanism is made of the cam for being eccentrically set on output gear lower end surface, the bearing contacted with cam contour and the shaft being interference fitted with bearing；The straight-line motion mechanism includes and wedge block shaft push rod assembly connected vertically and be arranged on push rod assembly, the wedge block is in contact with the front end of park pawl, the claw that can be meshed with parking gear is convexly equipped on the surface of park pawl, described return spring one end is fixed in park pawl, and the other end is fixed on mission case.The power that parking motor generates is passed to push rod assembly by cam mechanism and does straight reciprocating motion by the present invention, advantageously reduces system cost, improves drive efficiency.
Description
Technical field
The present invention relates to a kind of halting mechanisms, more specifically more particularly to a kind of automatic transmission electric parking mechanism.
Background technique
Halting mechanism is one of automatic transmission safety device, is acted on to the second protection of vehicle safety
In the vehicle stationary for sliding low speed neutral gear in fixed position, and vehicle steadily can be made to stop on the slope.It is existing from
Dynamic transmission park generally uses hydraulic-driven parking, needs hydraulic pump, control solenoid valve, hydraulic oil and related valve body,
Numerous components such as pipeline, volume is bigger than normal, and energy consumption efficiency is relatively low, and system cost is high, is not suitable for hybrid power and pure electric automobile
It uses.
Summary of the invention
It is few, compact-sized it is an object of the invention in view of the above shortcomings of the prior art, provide a kind of occupied space
Automatic transmission electric parking mechanism reduces system cost, improves drive efficiency.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of automatic transmission electric parking mechanism, including
Parking motor, gear reduction, cam mechanism, straight-line motion mechanism, park pawl, return spring and parking gear, it is described
Parking motor is fixedly mounted on mission case, and the output shaft of parking motor is connected by gear reduction and cam mechanism
It connects；The gear reduction is made of input gear, intermediate duplicate gear and output gear, wherein input gear is mounted on
It is meshed on the output shaft of parking motor with the gear wheel in duplicate gear, the pinion gear in duplicate gear is mutually nibbled with output gear
It closes；The cam mechanism is by being eccentrically set on the cam of output gear lower end surface, contacting with cam contour and done by cam driven
The bearing of linear reciprocating motion and the shaft being interference fitted with bearing form；The straight-line motion mechanism includes vertical with shaft
The push rod assembly of connection is sequentially installed with push plate, the first compressed spring and spring base in the right end of push rod assembly from the inside to the outside,
Middle push plate is also in contact with the bearing in cam mechanism, is sequentially installed with snap ring, second from the inside to the outside in the left end of push rod assembly
Compressed spring and wedge block, wherein wedge block is in contact with the front end of park pawl；The rear end of the park pawl is connected with one
Shaft is convexly equipped with the claw that can be meshed with parking gear on the surface of park pawl, and described return spring one end, which is fixed in, to be stayed
On vehicle pawl, the other end is fixed on mission case.
When the invention works, the power that parking motor generates passes to cam mechanism through gear reduction, by cam machine
Structure drives push rod assembly to make straight reciprocating motion, and when push rod assembly moves to left, wedge block moves to left jack up park pawl therewith, makes
Parking gear is lockked in the tooth socket of the claw insertion parking gear of park pawl, to reach vehicle parking purpose.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the scheme of installation of cam and output gear in Fig. 1.
In figure: 1- parking motor；2- gear reduction；21- input gear；22- duplicate gear；23- output gear
Wheel；3- cam mechanism；31- cam；32- bearing；33- shaft；34- briquetting；4- straight-line motion mechanism；41- push rod is total
At；42- push plate；The first compressed spring of 43-；44- spring base；45- snap ring；The second compressed spring of 46-；47- wedge block；
5- park pawl；51- shaft；52- claw；6- return spring；7- parking gear.
Specific embodiment
The present invention is described in further detail for embodiment in reference to the accompanying drawing, but does not constitute to of the invention
Any restrictions.
As shown in Figure 1, a kind of automatic transmission electric parking mechanism provided by the invention, including parking motor 1, gear subtract
Fast mechanism 2, cam mechanism 3, straight-line motion mechanism 4, park pawl 5, return spring 6 and parking gear 7.
The parking motor 1 is fixedly mounted on mission case, and the output shaft of parking motor 1 passes through gear reduction
2 connect with cam mechanism 3；The gear reduction 2 is by input gear 21, intermediate duplicate gear 22 and 23 groups of output gear
At, wherein input gear 21 is mounted on the output shaft of parking motor 1 and is meshed with the gear wheel in duplicate gear 22, duplex
Pinion gear in gear 22 is meshed with output gear 23.
The cam mechanism 3 by be eccentrically set on 23 lower end surface of output gear cam 31, with 31 profile contacts of cam simultaneously
The shaft 33 for making the bearing 32 of linear reciprocating motion and being interference fitted with bearing 32 is driven to form by cam 31, in output gear
Also set up along fillet of gear that there are two briquetting 34(is as shown in Figure 2 on 23 lower end surface), the height of the briquetting 34 is lower than cam
31, briquetting 34 can press over bearings 32 with the rotation of output gear 23, to prevent bearing 32 from position occurring during the motion
Offset is set, moreover, also contributing to reducing its friction damage between cam 31 as the driven member of cam mechanism 3 using bearing 32
Consumption.
The straight-line motion mechanism 4 include with the push rod assembly 41 connected vertically of shaft 33, in the right end of push rod assembly 41
It is sequentially installed with push plate 42, the first compressed spring 43 and spring base 44 from the inside to the outside, wherein push plate 42 is also and in cam mechanism 3
Bearing 32 is in contact, and is sequentially installed with snap ring 45, the second compressed spring 46 and wedge shape from the inside to the outside in the left end of push rod assembly 42
Block 47, wherein wedge block 47 is in contact with the front end of park pawl 5；The rear end of the park pawl 5 is connected with a shaft 51, stays
Vehicle pawl 5 is rotated upwardly and downwardly centered on shaft 51 when working, and being convexly equipped on the surface of park pawl 5 can nibble with 7 phase of parking gear
The claw 52 of conjunction, described 6 one end of return spring are fixed in park pawl 5, and the other end is fixed on mission case, return bullet
The setting of spring 6 can make 5 returning quickly of park pawl, and withdraw from its claw 52 from the tooth socket of parking gear 7.
In the present embodiment, the push rod assembly 41 is connected by a linear quarter butt and a quarter butt with elbow by connector
Connect composition, the linear quarter butt is vertical with the shaft 33 in cam mechanism 3 to be connect, push plate 42, the first compressed spring 43 with
Spring base 44 is sequentially arranged on the linear quarter butt, and snap ring 45, the second compressed spring 46 are then successively pacified with wedge block 47
On the quarter butt with elbow.
Parking principle of the invention is: the power that parking motor 1 generates passes to cam mechanism 3 through gear reduction 2,
By cam mechanism 3 drive push rod assembly 41 make straight reciprocating motion, when push rod assembly 41 moves to left, wedge block 46 move to left therewith by
Park pawl 5 jacks up, and is inserted into the claw 52 of park pawl 5 in the tooth socket of parking gear 7 and locks parking gear 7, to reach
Vehicle parking purpose.
Structure of the invention is compact, and the power that parking motor 1 generates is passed to push rod assembly 41 by cam mechanism 3 and is done directly
Line moves back and forth, and always works in electric system on high-efficiency point, advantageously reduces system cost, improves drive efficiency, improves
The security reliability of halting mechanism.
Claims (3)
1. a kind of automatic transmission electric parking mechanism, including parking motor, gear reduction, cam mechanism, linear motion
Mechanism, park pawl, return spring and parking gear, it is characterised in that:
The parking motor is fixedly mounted on mission case, and the output shaft of parking motor passes through gear reduction and cam
Mechanism connection；
The gear reduction is made of input gear, intermediate duplicate gear and output gear, wherein input gear is mounted on
It is meshed on the output shaft of parking motor with the gear wheel in duplicate gear, the pinion gear in duplicate gear is mutually nibbled with output gear
It closes；
The cam mechanism is by being eccentrically set on the cam of output gear lower end surface, contacting with cam contour and done by cam driven
The bearing of linear reciprocating motion and the shaft being interference fitted with bearing form；
The straight-line motion mechanism include with shaft push rod assembly connected vertically, push rod assembly right end from the inside to the outside successively
Push plate, the first compressed spring and spring base are installed, wherein push plate is also in contact with the bearing in cam mechanism, in push rod assembly
Left end be sequentially installed with snap ring, the second compressed spring and wedge block from the inside to the outside, the wherein front end of wedge block and park pawl
It is in contact；The rear end of the park pawl is connected with a shaft, and being convexly equipped on the surface of park pawl can mutually nibble with parking gear
The claw of conjunction, described return spring one end are fixed in park pawl, and the other end is fixed on mission case.
2. automatic transmission electric parking according to claim 1 mechanism, it is characterised in that: the lower end of the output gear
It is also set up along fillet of gear there are two briquetting on face, the height of the briquetting is lower than cam.
3. automatic transmission electric parking according to claim 1 or 2 mechanism, it is characterised in that: the push rod assembly by
One linear quarter butt and a quarter butt with elbow connect composition by connector, in the linear quarter butt and cam mechanism
Shaft vertically connects, and push plate, the first compressed spring and spring base are sequentially arranged on the linear quarter butt, and snap ring, second
Compressed spring and wedge block are then sequentially arranged on the quarter butt with elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910392974.1A CN110081169A (en) | 2019-05-13 | 2019-05-13 | Automatic transmission electric parking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910392974.1A CN110081169A (en) | 2019-05-13 | 2019-05-13 | Automatic transmission electric parking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110081169A true CN110081169A (en) | 2019-08-02 |
Family
ID=67419765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910392974.1A Pending CN110081169A (en) | 2019-05-13 | 2019-05-13 | Automatic transmission electric parking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110081169A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022152498A1 (en) * | 2021-01-14 | 2022-07-21 | Bayerische Motoren Werke Aktiengesellschaft | Park lock mechanism for a motor vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006281906A (en) * | 2005-03-31 | 2006-10-19 | Fuji Heavy Ind Ltd | Parking device |
| JP2007261357A (en) * | 2006-03-28 | 2007-10-11 | Isuzu Motors Ltd | Parking lock device in transmission |
| JP2010241256A (en) * | 2009-04-06 | 2010-10-28 | Toyota Motor Corp | Parking device |
| CN102537338A (en) * | 2012-03-09 | 2012-07-04 | 重庆青山工业有限责任公司 | Parking locking mechanism of double-clutch automatic gearbox |
| CN204201044U (en) * | 2014-09-25 | 2015-03-11 | 中国第一汽车股份有限公司 | A kind of novel double-clutch automatic transmission Parking Brake |
| CN107499292A (en) * | 2017-07-31 | 2017-12-22 | 重庆青山工业有限责任公司 | automatic transmission electronic parking mechanism |
| CN209990893U (en) * | 2019-05-13 | 2020-01-24 | 艾菲发动机零件（武汉）有限公司 | Electric parking mechanism of automatic transmission |
-
2019
- 2019-05-13 CN CN201910392974.1A patent/CN110081169A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006281906A (en) * | 2005-03-31 | 2006-10-19 | Fuji Heavy Ind Ltd | Parking device |
| JP2007261357A (en) * | 2006-03-28 | 2007-10-11 | Isuzu Motors Ltd | Parking lock device in transmission |
| JP2010241256A (en) * | 2009-04-06 | 2010-10-28 | Toyota Motor Corp | Parking device |
| CN102537338A (en) * | 2012-03-09 | 2012-07-04 | 重庆青山工业有限责任公司 | Parking locking mechanism of double-clutch automatic gearbox |
| CN204201044U (en) * | 2014-09-25 | 2015-03-11 | 中国第一汽车股份有限公司 | A kind of novel double-clutch automatic transmission Parking Brake |
| CN107499292A (en) * | 2017-07-31 | 2017-12-22 | 重庆青山工业有限责任公司 | automatic transmission electronic parking mechanism |
| CN209990893U (en) * | 2019-05-13 | 2020-01-24 | 艾菲发动机零件（武汉）有限公司 | Electric parking mechanism of automatic transmission |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022152498A1 (en) * | 2021-01-14 | 2022-07-21 | Bayerische Motoren Werke Aktiengesellschaft | Park lock mechanism for a motor vehicle |
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