CN102865362A - Parking mechanism for automatic transmission - Google Patents
Parking mechanism for automatic transmission Download PDFInfo
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- CN102865362A CN102865362A CN2012103562270A CN201210356227A CN102865362A CN 102865362 A CN102865362 A CN 102865362A CN 2012103562270 A CN2012103562270 A CN 2012103562270A CN 201210356227 A CN201210356227 A CN 201210356227A CN 102865362 A CN102865362 A CN 102865362A
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- parking
- case
- base
- transmission
- ratchet
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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 especially a kind of halting mechanism for automatic transmission.
Background technique
In published automatic transmission stopping mechanism, there is following problem:
At first, parking system all is integrated in together except parking ratchet wheel, and this just needs to increase parking baseplate, is used for supporting all component of parking system, and part increases, and riveting step increases;
Secondly, not taking full advantage of push rod assembly is to swing rather than rotate this characteristic and design the parking system structure, and system architecture is unreasonable;
The 3rd, parking system only moves between P, two gears of R, and this just needs meticulousr gear shifting handle structure, causes parking system that input requirements is uprised;
The 4th, what use in the existing parking system is the hinged push rod of positioning rail plate, and 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 purpose of the present invention is the halting mechanism proposition improvement project to existing automatic transmission, and existing halting mechanism is reasonably designed, and reduces component and production process when can improving stability.
Second purpose of the present invention is the kinetic characteristic that takes full advantage of push rod, adopts Novel connection type, optimizes structure.
The present invention is achieved by the following technical solutions:
A kind of halting mechanism for automatic transmission comprises the parking ratchet wheel that is fastenedly connected with output shaft, with the park pawl of parking ratchet wheel engagement, and the execution pin that drives park pawl and parking ratchet wheel engagement; Described park pawl one end is sleeved on the detent pin, and park pawl can be rotated around detent pin, and the ratchet base also is sleeved on the detent pin, and the ratchet floor installation is on case of transmission;
Return spring is sleeved on the detent pin, and the one end is buckled on the park pawl, and the other end is stuck on the return spring support, and the return spring support is installed on the ratchet base;
Described execution pin passes preloading spring and utilizes the pretightening force of preloading spring to be installed on the push rod, and the push rod the other end is connected on the 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 the gear shift locating stud, and the gear shift locating stud is installed on the case of transmission;
Described pitman arm shaft passes case of transmission, and 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;
Described housing, the housing of gear shift locating stud and the housing that pitman arm shaft passes speed changer for the ratchet base is installed all is not 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 relies on preloading spring to be installed on the push rod, and push rod one end is connected on the rocker plate, and the other end moves between guide plate and Parking base with carrying out pin;
Described park pawl relies on detent pin and the motion of ratchet base restrictive axial.
Described return spring is torsion spring, and the moment of torsion of return spring is that park pawl is rotated towards separating the ratchet direction.
Described ratchet base relies on locating stud and bolt to be installed on the case of transmission.
Described park pawl and rocker plate are plate.
Described guide plate and Parking base rely on bolt to be installed on the case of transmission.
The beneficial effect that the present invention compares with prior art is:
1, by the present invention, the parking system more reasonable structure, technique is simpler, assembles more conveniently, and has reduced demand to periphery design, cost.
2, cancellation parking baseplate, each part is directly installed on the housing, reduces operation.
3, take full advantage of the kinetic characteristic of push rod, adopt Novel connection type, optimize structure.
4, utilize the parking system axial space, realize that parking system P, R, N, each gear of D, S can both with gear shift wire drawing campaign, reduce parking system to the structural requirement of gear shifting handle.
Description of drawings
Fig. 1 is the structure front schematic view of patent installment state of the present invention;
Fig. 2 is that schematic diagram is looked on the right side of patent structure of the present invention shown in Figure 1.
Number in the figure is:
1, is the drag-line ball, 2, the drag-line plate, 3, pitman arm shaft, 4, rocker plate, 5, push rod, 6, guide plate, 7, the Parking base, 8, carry out pin, 9, park pawl, 10, detent pin, 11, ratchet base, 12, the return spring support, 13, return spring, 14, the gear shift locating stud, 15, parking ratchet wheel.
Embodiment
The below describes embodiments of the invention in detail, and described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
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 that is fastenedly connected with output shaft, with the park pawl 9 of parking ratchet wheel 15 engagements, and the execution pin 8 that drives park pawl 9 and parking ratchet wheel 15 engagements; Described park pawl 9 is plate, park pawl 9 one ends are sleeved on the detent pin 10, park pawl 9 can be rotated around detent pin 10, ratchet base 11 also is sleeved on the detent pin 10, ratchet base 11 relies on locating studs and bolt to be installed on the case of transmission, and described case of transmission for installation ratchet base 11 is the most close parking ratchet wheel 15 and a side body parallel with parking ratchet wheel 15; Described park pawl 9 relies on detent pin 10 and the motion of ratchet base 11 restrictive axial.
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 installed on the case of transmission; Described execution pin 8 passes preloading spring and utilizes the pretightening force of preloading spring to be installed on the push rod 5, and push rod 5 one ends are connected on the rocker plate 4, and the other end is with carrying out pin 8 motion between guide plate 6 and Parking base 7;
Described rocker plate 4 is plate; rocker plate 4 its centres are connected with pitman arm shaft 3; rocker plate 4 one ends are 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 the case of transmission, and the case of transmission that is used for fixed gear shift locating stud 14 is the upper base of speed changer or goes to the bottom;
Described pitman arm shaft 3 passes case of transmission, and the 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.The face that pitman arm shaft 3 passes case of transmission is that the face of same case of transmission for ratchet base 11 is installed and the face that is used for the case of transmission of fixed gear shift locating stud 14 are same housings that joins.
The working method of described halting mechanism is:
Express parking system such as Fig. 1 and 2, its working procedure is: when needing Parking, gear shifting handle forwards the P file location to from the R shelves, the gear shift wire drawing drives drag-line ball 1 and rotates a corresponding angle, the drag-line plate 2 that is fastenedly connected with the drag-line ball, the pitman arm shaft 3 that is fastenedly connected with drag-line plate 2, the rocker plate 4 that is fastenedly connected with pitman arm shaft 3 also can be rotated respective angles thereupon; rocker plate 4 upper ends move to P shelves positioning groove from R shelves positioning groove, with the accurate location P file locations of gear shift locating stud 14.Simultaneously, rocker plate 4 lower ends promote push rod 5 advances, and the execution pin 8 that is installed on the push rod 5 also can advance at Parking base 7, promotes ratchet 9 and parking ratchet wheel 15 engagements, thus the output shaft that locking and parking ratchet wheel 15 are fastenedly connected.
When withdrawing from the P shelves, gear shifting handle forwards the R file location to from the P shelves, above-mentioned each part moves in the opposite direction, carrying out pin 8 withdraws under ratchet 9, ratchet 9 is under the restoring moment of return spring 13, be close to Parking base 7, ratchet 9 is disengaged with the engagement of parking ratchet wheel 15, also removes locking with the output shaft that parking ratchet wheel 15 is fastenedly connected 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 these several motion states, carry out and sell 8 in guide plate 6 motions, can not enter on the Parking base 7, ratchet 9 guarantees near Parking base 7 under the restoring moment of return spring 13, with parking ratchet wheel 15 misoperation does not occur.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is by claims and be equal to and limit.
Claims (8)
1. halting mechanism that is used for automatic transmission is characterized in that: comprise the parking ratchet wheel that is fastenedly connected with output shaft, with the park pawl of parking ratchet wheel engagement, and drive the execution pin that park pawl and parking ratchet wheel mesh; Described park pawl one end is sleeved on the detent pin, and park pawl can be rotated around detent pin, and the ratchet base also is sleeved on the detent pin, and is fastenedly connected on case of transmission;
Return spring is sleeved on the detent pin, and the one end is buckled on the park pawl, and the other end is stuck on the return spring support, and the return spring support is installed on the ratchet base;
Described execution pin utilizes the pretightening force of preloading spring to be installed on the push rod, and the push rod the other end is connected on the 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 the gear shift locating stud, and the gear shift locating stud is installed on the case of transmission;
Described pitman arm shaft passes case of transmission, and the one end is connected with rocker plate, and the other end is connected with the drag-line plate, and the drag-line plate is connected with the drag-line ball;
Described housing, the housing of gear shift locating stud and the housing that pitman arm shaft passes speed changer for the ratchet base is installed all is not the same side housing of speed changer.
2. the halting mechanism for automatic transmission according to claim 1 is characterized in that: described case of transmission for the ratchet base is installed is the most close parking ratchet wheel and a side body parallel with parking ratchet wheel; The case of transmission that is used for the fixed gear shift locating stud is the upper base of speed changer or goes to the bottom; The face that pitman arm shaft passes case of transmission is that the face of same case of transmission for the ratchet base is installed and the face that is used for the case of transmission of fixed gear shift locating stud are same housings that joins.
3. the halting mechanism for automatic transmission according to claim 1, it is characterized in that: 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 installed on the push rod, and push rod one end is connected on the rocker plate, and the other end moves between guide plate and Parking base with carrying out pin.
4. the halting mechanism for automatic transmission according to claim 1 is characterized in that: described park pawl dependence detent pin and the motion of ratchet base restrictive axial.
5. the halting mechanism for automatic transmission according to claim 1, it is characterized in that: described return spring is torsion spring, the moment of torsion of return spring is that park pawl is rotated towards separating the ratchet direction.
6. 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 installed on the case of transmission.
7. the halting mechanism for automatic transmission according to claim 1, it is characterized in that: described park pawl and rocker plate are plate.
8. the halting mechanism for automatic transmission according to claim 3, it is characterized in that: described guide plate and Parking base rely on bolt to be installed on the case of transmission, and its case of transmission that is used for installation guide plate and Parking base is with the same side housing that the ratchet base is installed.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN102865362A true CN102865362A (en) | 2013-01-09 |
| CN102865362B CN102865362B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210356227.0A Active CN102865362B (en) | 2012-09-20 | 2012-09-20 | Parking mechanism for automatic transmission |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629277A (en) * | 2013-12-10 | 2014-03-12 | 重庆长安汽车股份有限公司 | Connecting structure of parking brake inhaul cable and rocker arm |
| CN104121361A (en) * | 2013-04-24 | 2014-10-29 | 本田技研工业株式会社 | Parking mechanism for vehicle |
| CN104455395A (en) * | 2014-11-27 | 2015-03-25 | 长城汽车股份有限公司 | Vehicle parking device, control method for operation of vehicle parking device and vehicle |
| CN104896085A (en) * | 2014-03-04 | 2015-09-09 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Parking lock arrangement and motor vehicle transmission |
| CN107022878A (en) * | 2017-04-18 | 2017-08-08 | 青岛海尔洗衣机有限公司 | Decelerator for washing machine and washing machine |
| CN108087545A (en) * | 2016-11-22 | 2018-05-29 | 上海汽车集团股份有限公司 | Parking and braking mechanism, parking braking system, automatic gear-box and automobile |
| CN110194133A (en) * | 2018-02-27 | 2019-09-03 | 丰田自动车株式会社 | 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 |
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| 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
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Patent Citations (9)
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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 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121361A (en) * | 2013-04-24 | 2014-10-29 | 本田技研工业株式会社 | Parking mechanism for vehicle |
| CN104121361B (en) * | 2013-04-24 | 2017-04-12 | 本田技研工业株式会社 | Parking mechanism for vehicle |
| CN103629277A (en) * | 2013-12-10 | 2014-03-12 | 重庆长安汽车股份有限公司 | Connecting structure of parking brake inhaul cable and rocker arm |
| CN104896085A (en) * | 2014-03-04 | 2015-09-09 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Parking lock arrangement and motor vehicle transmission |
| CN104896085B (en) * | 2014-03-04 | 2017-05-31 | 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 | Parking braking structure and vehicle transmission |
| CN104455395A (en) * | 2014-11-27 | 2015-03-25 | 长城汽车股份有限公司 | Vehicle parking device, control method for operation of vehicle parking device and vehicle |
| 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 |
| CN108087545A (en) * | 2016-11-22 | 2018-05-29 | 上海汽车集团股份有限公司 | Parking and braking mechanism, parking braking system, automatic gear-box and automobile |
| CN107022878A (en) * | 2017-04-18 | 2017-08-08 | 青岛海尔洗衣机有限公司 | Decelerator for washing machine and washing machine |
| 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 |
| CN110194133A (en) * | 2018-02-27 | 2019-09-03 | 丰田自动车株式会社 | Parking device |
| US10895322B2 (en) | 2018-02-27 | 2021-01-19 | Toyota Jidosha Kabushiki Kaisha | Parking device |
| CN110194133B (en) * | 2018-02-27 | 2021-09-03 | 丰田自动车株式会社 | Parking device |
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| CN102865362B (en) | 2015-05-20 |
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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 |