CN102865362B - Parking mechanism for automatic transmission - Google Patents
Parking mechanism for automatic transmission Download PDFInfo
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- CN102865362B CN102865362B CN201210356227.0A CN201210356227A CN102865362B CN 102865362 B CN102865362 B CN 102865362B CN 201210356227 A CN201210356227 A CN 201210356227A CN 102865362 B CN102865362 B CN 102865362B
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Abstract
The invention relates to a parking mechanism for an automatic transmission. The parking mechanism comprises a parking ratchet wheel connected with an output shaft, a parking pawl meshed with the parking ratchet wheel and an execution pin driving the parking pawl to enable the parking pawl to be meshed with the parking ratchet wheel. The parking mechanism further comprises a guide plate and a parking base. A parking floor board is removed from the parking mechanism, each part is directly installed on a transmission casing, meanwhile, a novel structure and a connection mechanism are adopted, and movement in fives gears including P,R,N,D and S of a parking system is achieved. The parking mechanism has the advantages of being reasonable in structure of the parking system, simple in process and convenient to assemble, and the requirements for peripheral design are reduced.
Description
Technical field
The invention belongs to automobile technical field, refer to a kind of halting mechanism for automatic transmission especially.
Background technique
In published automatic transmission stopping mechanism, there is following problem:
First, parking system, except parking ratchet wheel, is all integrated in together, and this just needs to increase parking baseplate, and for supporting all component of parking system, part increases, and riveting step increases;
Secondly, not making full use of push rod assembly is swing instead of rotate this characteristic to design parking system structure, and system architecture is unreasonable;
3rd, parking system only moves between P, R two gears, and this just needs meticulousr gear shifting handle structure, causes parking system to uprise input requirements;
4th, use the hinged push rod of positioning rail plate in existing parking system, such structure causes the axial displacement that not only has in drawing process of positioning plate and push rod also can produce radial displacement, affects the stable of gear.
Summary of the invention
First object of the present invention proposes improvement project to the halting mechanism of existing automatic transmission, reasonably designs, while can improving stability, reduce component and production process to existing halting mechanism.
Second object of the present invention is the kinetic characteristic making full use of push rod, adopts Novel connection type, optimizes structure.
The present invention is achieved by the following technical solutions:
For a halting mechanism for automatic transmission, comprise the parking ratchet wheel be fastenedly connected with output shaft, the park pawl engaged with parking ratchet wheel, and the execution pin driving park pawl to engage with parking ratchet wheel; Its one end of described park pawl is sleeved in detent pin, and park pawl can be rotated around detent pin, and ratchet base is also sleeved in detent pin, and ratchet floor installation is on case of transmission;
Return spring is sleeved in detent pin, and its one end is buckled in park pawl, and the other end is stuck on return spring support, and return spring support installing is on ratchet base;
Described execution pin is through preloading spring and utilize the pretightening force of preloading spring to be arranged on push rod, and the push rod the other end is connected in rocker plate;
Its centre of described rocker plate is fastenedly connected with pitman arm shaft, and rocker plate one end is connected with push rod, and the other end is provided with positioning groove, accurately locates gear positions with gear shift locating stud, and gear shift locating stud is arranged on case of transmission;
Described pitman arm shaft is through case of transmission, and its one end and rocker plate are fastenedly connected, and the other end and drag-line plate are fastenedly connected, and drag-line plate and drag-line ball are fastenedly connected;
The housing of described housing for installing ratchet base, gear shift locating stud and pitman arm shaft are all the same side housing of speed changer through the housing of speed changer.
Halting mechanism also includes guide plate and parking base, and described guide plate and parking floor installation are on case of transmission; Described execution pin relies on preloading spring to be arranged on push rod, and push rod one end is connected in rocker plate, and the other end moves between guide plate and parking base with execution pin;
Described park pawl relies on detent pin and ratchet base restrictive axial to move.
Described return spring is torsion spring, and the moment of torsion of return spring is that park pawl is rotated towards separation ratchet direction.
Described ratchet base relies on locating stud and bolt to be arranged on case of transmission.
Described park pawl and rocker plate are plate.
Described guide plate and parking base rely on bolt to be arranged on case of transmission.
The present invention's beneficial effect is compared with the existing technology:
1, by the present invention, parking system more reasonable structure, technique is simpler, assembles more convenient, and reduces the demand to periphery design, and cost reduces.
2, cancel parking baseplate, each part is directly installed on housing, reduces operation.
3, make full use of the kinetic characteristic of push rod, adopt Novel connection type, optimize structure.
4, utilize parking system axial space, realizing each gear of parking system P, R, N, D, S with gear shift wire drawing campaign, can reduce parking system to the structural requirement of gear shifting handle.
Accompanying drawing explanation
Fig. 1 is the structure front schematic view of patent installment state of the present invention;
Fig. 2 is for looking schematic diagram in the right side of patent structure of the present invention shown in Fig. 1.
Number in the figure is:
1, be drag-line ball, 2, drag-line plate, 3, pitman arm shaft, 4, rocker plate, 5, push rod, 6, guide plate, 7, parking base, 8, perform pin, 9, park pawl, 10, detent pin, 11, ratchet base, 12, return spring support, 13, return spring, 14, gear shift locating stud, 15, parking ratchet wheel.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
The halting mechanism of automatic transmission as depicted in figs. 1 and 2, described halting mechanism is arranged in the housing of automatic transmission, comprise the parking ratchet wheel 15 be fastenedly connected with output shaft, the park pawl 9 engaged with parking ratchet wheel 15, and the execution pin 8 driving park pawl 9 to engage with parking ratchet wheel 15; Described park pawl 9 is plate, its one end of park pawl 9 is sleeved in detent pin 10, park pawl 9 can be rotated around detent pin 10, ratchet base 11 is also sleeved in detent pin 10, ratchet base 11 relies on locating stud and bolt to be arranged on case of transmission, and the described case of transmission for installing ratchet base 11 is a side body near parking ratchet wheel 15 and parallel with parking ratchet wheel 15; Described park pawl 9 relies on detent pin 10 and ratchet base 11 restrictive axial to move.
Return spring 13 is sleeved in detent pin 10, and its one end is buckled in park pawl 9, and the other end is stuck on return spring support 12, and return spring support 12 is arranged on ratchet base 11; Described return spring 13 is torsion spring, and the moment of torsion of return spring 13 is that park pawl 9 is rotated towards separation parking ratchet wheel 15 direction.
Halting mechanism also includes guide plate 6 and parking base 7, and described guide plate 6 and parking base 7 rely on bolt to be arranged on case of transmission; Described execution pin 8 passes preloading spring and utilizes the pretightening force of preloading spring to be arranged on push rod 5, and push rod 5 one end is connected in rocker plate 4, and the other end moves between guide plate 6 and parking base 7 with execution pin 8;
Described rocker plate 4 is plate; its centre of rocker plate 4 is connected with pitman arm shaft 3; rocker plate 4 one end is connected with push rod 5; the other end is provided with positioning groove; accurately locate gear positions with gear shift locating stud 14; gear shift locating stud 14 is connected on case of transmission, and the case of transmission for fixed gear shift locating stud 14 is the upper base of speed changer or goes to the bottom;
Described pitman arm shaft 3 is through case of transmission, and its one end is connected with rocker plate 4, and the other end is connected with drag-line plate 2, and drag-line plate 2 is connected with drag-line ball 1.Pitman arm shaft 3 is together for installing the face of the case of transmission of ratchet base 11 and being housings with connecting for the face of the case of transmission of fixed gear shift locating stud 14 through the face of case of transmission.
The working method of described halting mechanism is:
As Fig. 1 and 2 expresses parking system, its working procedure is: when needing parking, gear shifting handle forwards P file location to from R shelves, gear shift wire drawing drives drag-line ball 1 to rotate a corresponding angle, the drag-line plate 2 be fastenedly connected with drag-line ball, the pitman arm shaft 3 be fastenedly connected with drag-line plate 2, the rocker plate 4 be fastenedly connected with pitman arm shaft 3 also can rotate respective angles thereupon; rocker plate 4 upper end moves to P shelves positioning groove from R shelves positioning groove, accurately locates P file location with gear shift locating stud 14.Meanwhile, rocker plate 4 lower end promotes push rod 5 and advances, and the execution pin 8 be arranged on push rod 5 also can advance on parking base 7, promotes ratchet 9 and engages with parking ratchet wheel 15, thus the output shaft that locking and parking ratchet wheel 15 are fastenedly connected.
When exiting P shelves, gear shifting handle forwards R file location to from P shelves, above-mentioned each part moves in the opposite direction, perform pin 8 to exit under ratchet 9, ratchet 9 is under the restoring moment of return spring 13, be close to parking base 7, ratchet 9 is removed with engaging of parking ratchet wheel 15, and the output shaft be fastenedly connected with parking ratchet wheel 15 also removes locking thereupon.
When gear shifting handle is changed between R, N, D, S gear, drag-line ball 1, drag-line plate 2, pitman arm shaft 3, rocker plate 4, push rod 5, execution pin 8 all can move thereupon, just under this several motion state, perform pin 8 only to move on guide plate 6, can not enter on parking base 7, ratchet 9, under the restoring moment of return spring 13, ensures near parking base 7, with parking ratchet wheel 15, misoperation does not occur.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (7)
1. for a halting mechanism for automatic transmission, it is characterized in that: comprise the parking ratchet wheel be fastenedly connected with output shaft, the park pawl engaged with parking ratchet wheel, and the execution pin driving park pawl to engage with parking ratchet wheel; Its one end of described park pawl is sleeved in detent pin, and park pawl can be rotated around detent pin, and ratchet base is also sleeved in detent pin, and is fastenedly connected on case of transmission;
Return spring is sleeved in detent pin, and its one end is buckled in park pawl, and the other end is stuck on return spring support, and return spring support installing is on ratchet base;
Described execution pin utilizes the pretightening force of preloading spring to be arranged on push rod, and the push rod the other end is connected in rocker plate;
Its centre of described rocker plate is connected with pitman arm shaft, and rocker plate one end is connected with push rod, and the other end is provided with positioning groove, accurately locates gear positions with gear shift locating stud, and gear shift locating stud is arranged on case of transmission;
Described pitman arm shaft is through case of transmission, and its one end is connected with rocker plate, and the other end is connected with drag-line plate, and drag-line plate is connected with drag-line ball;
The housing passing speed changer for installing the housing of ratchet base, the housing of gear shift locating stud and pitman arm shaft is all the same side housing of speed changer;
Halting mechanism also includes guide plate and parking base, and described guide plate and parking floor installation are on case of transmission; Described execution pin utilizes the pretightening force of preloading spring to be arranged on push rod, and push rod one end is connected in rocker plate, and the other end moves between guide plate and parking base with execution pin.
2. the halting mechanism for automatic transmission according to claim 1, is characterized in that: the described case of transmission for installing ratchet base is a side body near parking ratchet wheel and parallel with parking ratchet wheel; Case of transmission for fixed gear shift locating stud is the upper base of speed changer or goes to the bottom; Pitman arm shaft is together for installing the face of the case of transmission of ratchet base and being a housing with connecting for the face of the case of transmission of fixed gear shift locating stud through the face of case of transmission.
3. the halting mechanism for automatic transmission according to claim 1, is characterized in that: described park pawl relies on detent pin and ratchet base restrictive axial to move.
4. the halting mechanism for automatic transmission according to claim 1, is characterized in that: described return spring is torsion spring, and the moment of torsion of return spring is that park pawl is rotated towards separation ratchet direction.
5. the halting mechanism for automatic transmission according to claim 1, is characterized in that: described ratchet base relies on locating stud and bolt to be arranged on case of transmission.
6. the halting mechanism for automatic transmission according to claim 1, is characterized in that: described park pawl and rocker plate are plate.
7. the halting mechanism for automatic transmission according to claim 1, it is characterized in that: described guide plate and parking base rely on bolt to be arranged on case of transmission, it is the same the same side housing installing ratchet base for installing the case of transmission of guide plate and parking base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356227.0A CN102865362B (en) | 2012-09-20 | 2012-09-20 | Parking mechanism for automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210356227.0A CN102865362B (en) | 2012-09-20 | 2012-09-20 | Parking mechanism for automatic transmission |
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| Publication Number | Publication Date |
|---|---|
| CN102865362A CN102865362A (en) | 2013-01-09 |
| CN102865362B true CN102865362B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210356227.0A Active CN102865362B (en) | 2012-09-20 | 2012-09-20 | Parking mechanism for automatic transmission |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5739936B2 (en) * | 2013-04-24 | 2015-06-24 | 本田技研工業株式会社 | Vehicle parking mechanism |
| CN103629277B (en) * | 2013-12-10 | 2015-10-07 | 重庆长安汽车股份有限公司 | The linkage structure of a kind of Parking Brake drag-line and rocking arm |
| DE102014102831A1 (en) * | 2014-03-04 | 2015-09-10 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Parking lock arrangement and motor vehicle transmission |
| CN104455395B (en) * | 2014-11-27 | 2017-11-28 | 长城汽车股份有限公司 | Vehicle parking device and its control method and vehicle of operation |
| 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 |
| CN107022878B (en) * | 2017-04-18 | 2021-10-22 | 青岛海尔洗衣机有限公司 | Washing machine speed reducer and washing machine |
| JP6852698B2 (en) | 2018-02-27 | 2021-03-31 | トヨタ自動車株式会社 | Parking device |
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|---|---|---|---|---|
| JPH03157250A (en) * | 1989-11-15 | 1991-07-05 | Aisin Aw Co Ltd | Parking mechanism of automatic transmission |
| JP3258139B2 (en) * | 1993-06-29 | 2002-02-18 | ジヤトコ・トランステクノロジー株式会社 | Automatic transmission parking mechanism |
| CN201206627Y (en) * | 2008-05-04 | 2009-03-11 | 比亚迪股份有限公司 | Parking mechanism for automobile |
| CN201502692U (en) * | 2009-07-21 | 2010-06-09 | 上海汽车集团股份有限公司 | Parking and locking mechanism of double-clutch automatic variable-speed device |
| CN202091498U (en) * | 2011-04-26 | 2011-12-28 | 浙江吉利汽车研究院有限公司 | Parking mechanism for automatic transmission of automobile |
| 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 |
| CN202360739U (en) * | 2011-10-31 | 2012-08-01 | 上海汽车集团股份有限公司 | Transmission gear selecting and shifting device, transmission with same and vehicle |
| CN202418543U (en) * | 2011-06-29 | 2012-09-05 | 比亚迪股份有限公司 | Parking mechanism and automobile speed changing box provided therewith |
| CN203189708U (en) * | 2013-01-17 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Connection mechanism for parking mechanism |
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2012
- 2012-09-20 CN CN201210356227.0A patent/CN102865362B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03157250A (en) * | 1989-11-15 | 1991-07-05 | Aisin Aw Co Ltd | Parking mechanism of automatic transmission |
| JP3258139B2 (en) * | 1993-06-29 | 2002-02-18 | ジヤトコ・トランステクノロジー株式会社 | Automatic transmission parking mechanism |
| CN201206627Y (en) * | 2008-05-04 | 2009-03-11 | 比亚迪股份有限公司 | Parking mechanism for automobile |
| CN201502692U (en) * | 2009-07-21 | 2010-06-09 | 上海汽车集团股份有限公司 | Parking and locking mechanism of double-clutch automatic variable-speed device |
| CN202091498U (en) * | 2011-04-26 | 2011-12-28 | 浙江吉利汽车研究院有限公司 | Parking mechanism for automatic transmission of automobile |
| CN202418543U (en) * | 2011-06-29 | 2012-09-05 | 比亚迪股份有限公司 | Parking mechanism and automobile speed changing box provided therewith |
| CN202360739U (en) * | 2011-10-31 | 2012-08-01 | 上海汽车集团股份有限公司 | Transmission gear selecting and shifting device, transmission with same and vehicle |
| 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 |
| CN203189708U (en) * | 2013-01-17 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Connection mechanism for parking mechanism |
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| CN102865362A (en) | 2013-01-09 |
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Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230022 No. 176 Dongliu Road, Hefei City, Anhui Province Patentee before: Anhui Jianghuai Automobile Group Limited by Share Ltd |