CN201568562U - Parking mechanism of automobile auto-transmission - Google Patents
Parking mechanism of automobile auto-transmission Download PDFInfo
- Publication number
- CN201568562U CN201568562U CN2009203146870U CN200920314687U CN201568562U CN 201568562 U CN201568562 U CN 201568562U CN 2009203146870 U CN2009203146870 U CN 2009203146870U CN 200920314687 U CN200920314687 U CN 200920314687U CN 201568562 U CN201568562 U CN 201568562U
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- tooth ratchet
- internal tooth
- ratchet
- push rod
- parking
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Abstract
The utility model relates to the technical field of automobile transmission systems, in particular to a parking mechanism of an automobile auto-transmission, which solves the problems in the prior art such as high cost requirements on such elements as a parking ratchet pawl, a parking rack wheel, a ratchet pawl revolving shaft and the like, and the danger driving caused by the abnormal parking and out of gear. The parking mechanism comprises a shifter, an internal teeth rack wheel and a return spring bracket, wherein the internal annular gear of the internal teeth rack wheel is meshed with an external teeth rack wheel, a push rod spring is arranged between the internal teeth rack wheel and the shifter, a plurality of return springs are arranged between the internal teeth rack wheel and the return spring bracket, and the shifter and the internal teeth rack wheel are connected through a connecting rod. The internal teeth rack wheel has strong load-bearing capacity, avoids the abnormal parking, and can not slide, and can not be separated from the external teeth rack wheel and released from the parking gear due to the function of the torque of the whole automobile.
Description
Technical field
The utility model relates to the car transmissions technical field, especially relates to a kind of halting mechanism of automatic gearbox.
Background technique
At present, in the automotive transmission halting mechanism design of open utilization, have following problem: park pawl and Parking ratchet engaged, park pawl and Parking ratchet respectively are that a tooth intermeshes, bear car load moment, improved park pawl and Parking ratchet demands for bearing capacity; Park pawl wraparound rotating shaft rotation and Parking ratchet engaged, turning axle is fixed on the housing, and car load moment is delivered to turning axle by the engagement of park pawl and Parking ratchet, is delivered to housing, has improved park pawl turning axle and housing demands for bearing capacity; When vehicle driving, ratchet does not mesh with hook tooth under torsion spring or helical spring support, and ratchet may be subjected under the greater impact loading, overcomes spring force around the rotation of ratchet turning axle, and with ratchet engaged, unusual Parking causes driving dangerous; When Parking, ratchet and ratchet side and contacts side surfaces realize engagement, car load moment is given ratchet by ratchet effect, ratchet is subjected to the ratchet moment loading, overcome the frictional force between ratchet and ratchet surface and the face, have around ratchet turning axle rotation trend, needing separately, the design pressing wheel mechanism prevents that ratchet from rotating, and causes out of supply.
As Chinese patent is the halting mechanism of 200620170847.5 1 kinds of automatic gearboxes, on shift shaft, establish the positioning rail plate that is fastenedly connected with it, if the driveshaft assembly that an end and positioning rail plate are articulated and connected, the other end is established the driveshaft roller, at the opposite end of park pawl with the Parking ratchet engaged, if Parking bracket assembly, driveshaft roller place between Parking bracket assembly and the park pawl and contact for rolling surface.And for example the patent No. is ZL200820094401.8 Automotive parking mechanism, comprise gearshift, torsion spring, claw, can promote this claw push rod and can with the ratchet of this claw interlock, on gearshift, be provided with two positioning grooves at least, also fix a location device on the automotive transmission housing, push rod is resisted against on the torsion spring, claw is rotating to be installed on the automotive transmission housing, and an end of torsion spring stretches in the claw, and the other end then is fixed on the automotive transmission housing.
Summary of the invention
The purpose of this utility model is in order to solve the technical problem described in the background technique, a kind of reasonable in design is provided, external tooth ratchet and internal tooth ratchet connect by multiple tooth spline, realize that automatic gearbox parking and braking mechanism intensity is higher, stability is more reliable, can improve the halting mechanism of the automatic gearbox of drive safety.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of halting mechanism of automatic gearbox, comprise gearshift, internal tooth ratchet, return spring support, the ring gear that it is characterized in that described internal tooth ratchet meshes an external tooth ratchet, be provided with push rod spring between internal tooth ratchet and the gearshift, be provided with several return springs between internal tooth ratchet and the return spring support, gearshift is connected by connecting rod with the internal tooth ratchet.
During engage a gear, shift level rotates under the effect of gear shift zip, promote push rod by connecting rod, push rod promotes push rod spring by its boss, and push rod spring is compressed, and props up the internal tooth ratchet, when the groove of internal tooth ratchet and external tooth hook tooth is relative, push rod spring is released, and the internal tooth ratchet endwisely slips and the external tooth ratchet engaged, realizes Parking.When plucking grade, the shift level rotation retracts push rod, and the internal tooth ratchet is pushed back under the effect of return spring, realizes plucking shelves.
As preferably, the circumference of described internal tooth ratchet is provided with bracket holes, and an end of push rod is fixed on the bracket holes, and push rod spring is sleeved on the push rod.When hanging the Parking shelves, push rod is along with gear level moves forward, and push rod promotes push rod spring and moves forward, and push rod spring promotes the internal tooth ratchet and slides along case of transmission.
As preferably, an end of described return spring is fixed on the return spring support, and the other end of return spring passes the return spring sleeve and contacts with the internal tooth ratchet.When withdrawing from the Parking shelves, return spring discharges elastic force, promotes the internal tooth ratchet and slides along case of transmission, separates with the external tooth ratchet.
As preferably, described push rod is a rod shaped structure, and an end is provided with boss, and boss cooperates with the bracket holes that the internal tooth ratchet is provided with, and the other end of push rod is provided with spring supporting surface and hinging hole.When push rod passes the internal tooth ratchet, prop up the internal tooth ratchet, the spring supporting surface prevents that push rod spring from moving along the push rod direction.Boss contacts with the grinding tooth ratchet surface, can prevent effectively that automobile internal tooth ratchet under travelling state is slided and the external tooth ratchet engaged along case of transmission by vibration influence, and guarantee that halting mechanism is in released state.
As preferably, described gearshift comprises flexible axle, cover plate and gear level, and cover plate is fixed on the case of transmission, and an end of gear level passes cover plate and links to each other with flexible axle, and the other end is hinged by connecting rod and push rod.The push-and-pull flexible axle that flexible axle can adopt prior art to provide, flexible axle is fixed on the car body by the flexible axle support, and flexible axle links to each other with shift level, has two positioning grooves on gearshift at least, fixes a leaf spring on the case of transmission and snaps in described groove.
As preferably, described internal tooth ratchet is a ring structure, and inside and outside all have a key tooth, and internal tooth is meshed with described external tooth ratchet, and external tooth matches with case of transmission.
As preferably, described external tooth ratchet is a ring structure, links to each other with truck drive shaft by the spline form.The external tooth ratchet can be identical with existing halting mechanism Parking ratchet structure, is ring structure, links to each other with truck drive shaft by spline.When internal tooth ratchet and this external tooth ratchet engaged, case of transmission is given the external tooth ratchet with resisting moment by the internal tooth ratchet effect, and transmission shaft is given in the spline effect that is connected with transmission shaft by the external tooth ratchet again, stops transmission shaft to rotate.
The beneficial effects of the utility model are:
1. utilize spline that the internal tooth ratchet is connected with case of transmission, improved the bearing capacity that the internal tooth ratchet is connected with case of transmission.
2. utilize spline that the internal tooth ratchet is connected with the external tooth ratchet, share the car load torque by a plurality of teeth of spline, each tooth load is much smaller, has improved the bearing capacity that the internal tooth ratchet is connected with the external tooth ratchet.
3. utilize spline that the internal tooth ratchet is connected with case of transmission, the internal tooth ratchet is because the effect of drawn stem boss and return spring has been avoided being subjected to big load impacting effect in normal driving process, and the internal tooth ratchet slides and the external tooth ratchet engaged, unusual Parking causes driving dangerous.
4. when hanging the Parking shelves, the internal tooth ratchet is meshed by spline with the external tooth ratchet, has avoided the effect owing to car load moment, and the internal tooth ratchet slides, and breaks away from the external tooth ratchet, withdraws from the Parking shelves.
Therefore, the utility model is a kind of reasonable in design, the intensity height, and stability is reliable, has improved the halting mechanism of the automatic gearbox of drive safety.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of pusher structure schematic representation of the utility model Fig. 1.
Fig. 3 is a kind of structural representation of internal tooth ratchet of the present utility model.
Fig. 4 is a kind of structural representation of external tooth ratchet of the present utility model.
Among the figure: 1. gearshift, 2. connecting rod, 3. push rod, 31. boss, 32. spring supporting surfaces, 4. push rod spring, 5. internal tooth ratchet, 51. bracket holes, 6. external tooth ratchet, 7. spring spool, 8. return spring, 9. return spring support.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Referring to Fig. 1, present embodiment comprises gearshift 1, internal tooth ratchet 5, return spring support 9, can promote the push rod spring 4 of internal tooth ratchet 5 and 6 engagements of external tooth ratchet, can promote return spring 8 and push rod 3 that internal tooth ratchet 5 separates with external tooth ratchet 6, external tooth ratchet 6 is connected on the truck drive shaft, and internal tooth ratchet 5 is connected on the case of transmission.
Gearshift 1 comprises flexible axle, cover plate and gear level, and cover plate is fixed on the case of transmission, and this gear level passes cover plate one end and links to each other with this flexible axle, and the other end is hinged by connecting rod 2 and push rod 3.
The push-and-pull flexible axle that flexible axle can adopt prior art to provide, concrete is that the flexible axle shell selects for use the Spring Steel Wire coiling to form, the axle core uses wire rope.Flexible axle is fixed on the car body by the flexible axle support, and flexible axle links to each other with described shift level, has two positioning grooves on described gearshift at least, fixes a leaf spring on the case of transmission and snaps in positioning groove.
Referring to Fig. 2, push rod 3 is a rod shaped structure, one end is provided with boss 31, when passing described internal tooth ratchet 5, prop up internal tooth ratchet 5, the other end is provided with spring supporting surface 32, spring supporting surface 32 supports push rod spring 4, prevent that push rod spring 4 from moving along the push rod direction, and hinged at this end with the gearshift axle, can rotate around this articulating point.
Internal tooth ratchet 5 is a ring structure, and inside and outside all have a key tooth.Internal tooth is meshed with external tooth ratchet 6, and external tooth links to each other with case of transmission, and internal tooth ratchet 5 can slide along this case of transmission.
Return spring support 9 is circular punching press plate, is fixed by bolts on the housing.Return spring 8 is the screw cylindrical spring, and an end is fixed on the return spring support 9, and the other end is against on the internal tooth ratchet 5 by return spring sleeve 7, when withdrawing from the Parking shelves, return spring 8 discharges elastic force, promotes internal tooth ratchet 5 and slides along case of transmission, separates with external tooth ratchet 6.
External tooth ratchet 6 is a ring structure, links to each other with truck drive shaft by spline.When internal tooth ratchet 5 meshed with this external tooth ratchet 6, case of transmission was given external tooth ratchet 6 with resisting moment by 5 effects of internal tooth ratchet, and transmission shaft is given in the spline effect that is connected with transmission shaft by external tooth ratchet 5 again, and the prevention transmission shaft rotates.
Push rod spring 4 is screw cylindrical springs, is sleeved on the push rod 3, and an end is against on the push rod spring supporting surface, and the other end is against on the internal tooth ratchet 5.When hanging the Parking shelves, push rod 3 is along with gear level moves forward, and push rod 3 promotes push rod spring 4 and moves forward, and push rod spring 4 promotes internal tooth ratchet 5 and slides along case of transmission.When internal tooth ratchet 5 pushed up mutually with external tooth hook tooth 6 and tooth, push rod 3 continued to move forward, and push rod spring 4 is further compressed.When transmission shaft turns an angle, when the tooth of internal tooth ratchet 5 was relative with external tooth ratchet 6 teeth groove, push rod spring 4 discharges elastic force to be promoted internal tooth ratchets 5 and continues to front slide along spline, with 6 engagements of external tooth ratchet, hangs up the Parking shelves.
As the further improvement of aforementioned techniques scheme, can consider to utilize hydraulic buttery valve control hydraulic oil, promote internal tooth ratchet 5 and slide along case of transmission, improve the automatic degree of engage a gear.Case of transmission is provided with hydraulic piston cylinder, forms airtight cavity with case of transmission.Transmission hydraulic control system is provided with oil duct and leads to this cavity, promotes piston cylinder and slides along case of transmission, and the piston cylinder movement locus is identical with internal tooth ratchet 5, and promotes internal tooth ratchet 5 and 6 engagements of external tooth ratchet.The parking brake signals that the speed changer automatic control system is transmitted according to gear shifting handle, control oil duct solenoid valve is opened, and makes hydraulic oil lead to cavity along this oil duct, promotes internal tooth ratchet 5 and slides.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technological scheme to carry out; or design of the present utility model and technological scheme are directly applied to other occasions without improving, all within protection domain of the present utility model.
Claims (7)
1. the halting mechanism of an automatic gearbox, comprise gearshift (1), internal tooth ratchet (5), return spring support (9), the ring gear that it is characterized in that described internal tooth ratchet (5) meshes an external tooth ratchet (6), be provided with push rod spring (4) between internal tooth ratchet (5) and the gearshift (1), be provided with several return springs (8) between internal tooth ratchet (5) and the return spring support (9), gearshift (1) is connected by connecting rod (2) with internal tooth ratchet (5).
2. the halting mechanism of a kind of automatic gearbox according to claim 1, the circumference that it is characterized in that described internal tooth ratchet (5) is provided with bracket holes (51), one end of push rod (3) is fixed on the bracket holes (51), and push rod spring (4) is sleeved on the push rod (3).
3. the halting mechanism of a kind of automatic gearbox according to claim 1, an end that it is characterized in that described return spring (8) is fixed on the return spring support (9), and the other end of return spring (8) passes return spring sleeve (7) and contacts with internal tooth ratchet (5).
4. the halting mechanism of a kind of automatic gearbox according to claim 2, it is characterized in that described push rod (3) is rod shaped structure, one end is provided with boss (31), boss (31) cooperates with the bracket holes (51) that internal tooth ratchet (5) is provided with, and the other end of push rod (3) is provided with spring supporting surface (32) and hinging hole.
5. the halting mechanism of a kind of automatic gearbox according to claim 1, it is characterized in that described gearshift (1) comprises flexible axle, cover plate and gear level, cover plate is fixed on the case of transmission, one end of gear level passes cover plate and links to each other with flexible axle, and the other end is hinged by connecting rod (2) and push rod (3).
6. according to the halting mechanism of claim 1 or 2 or 3 described a kind of automatic gearboxes, it is characterized in that described internal tooth ratchet (5) is ring structure, inside and outside the key tooth is all arranged, internal tooth is meshed with described external tooth ratchet (6), external tooth matches with case of transmission.
7. the halting mechanism of a kind of automatic gearbox according to claim 1 is characterized in that described external tooth ratchet (6) is ring structure, links to each other with truck drive shaft by the spline form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203146870U CN201568562U (en) | 2009-11-13 | 2009-11-13 | Parking mechanism of automobile auto-transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203146870U CN201568562U (en) | 2009-11-13 | 2009-11-13 | Parking mechanism of automobile auto-transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568562U true CN201568562U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203146870U Expired - Fee Related CN201568562U (en) | 2009-11-13 | 2009-11-13 | Parking mechanism of automobile auto-transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568562U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774278A (en) * | 2011-05-10 | 2012-11-14 | 博格华纳公司 | Single speed transmission for electric vehicle with mechanical or electrical park system |
| CN104074971A (en) * | 2013-03-28 | 2014-10-01 | 陈奇 | Automatic transmission parking mechanism of pure electric vehicle |
| CN105857286A (en) * | 2016-05-24 | 2016-08-17 | 湖北航天技术研究院特种车辆技术中心 | Parking brake device and method |
| CN107120431A (en) * | 2016-02-24 | 2017-09-01 | 上海汽车集团股份有限公司 | Halting mechanism, gearbox and automobile |
| CN107956867A (en) * | 2016-10-14 | 2018-04-24 | 财团法人工业技术研究院 | Axial parking mechanism |
| CN108006222A (en) * | 2018-01-19 | 2018-05-08 | 吉林大学 | A kind of automatic transmission parking brake and its control method |
| CN111022640A (en) * | 2019-12-12 | 2020-04-17 | 中国第一汽车股份有限公司 | Parking system |
| CN111853231A (en) * | 2020-06-17 | 2020-10-30 | 义乌吉利自动变速器有限公司 | Parking device and vehicle with same |
| CN113734118A (en) * | 2021-11-08 | 2021-12-03 | 杭州非古科技有限公司 | New energy automobile parking structure |
| CN113883270A (en) * | 2021-11-22 | 2022-01-04 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Parking mechanism and car |
| CN113969976A (en) * | 2020-07-22 | 2022-01-25 | 蜂巢传动科技河北有限公司 | Hub-driven synchronous gear-shifting parking system |
| WO2022037741A1 (en) * | 2020-08-17 | 2022-02-24 | Schaeffler Technologies AG & Co. KG | Parking lock |
-
2009
- 2009-11-13 CN CN2009203146870U patent/CN201568562U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102774278B (en) * | 2011-05-10 | 2016-07-20 | 博格华纳公司 | The single speed driveline with mechanical type or electrodynamic type parking system for electric vehicle |
| CN102774278A (en) * | 2011-05-10 | 2012-11-14 | 博格华纳公司 | Single speed transmission for electric vehicle with mechanical or electrical park system |
| CN104074971A (en) * | 2013-03-28 | 2014-10-01 | 陈奇 | Automatic transmission parking mechanism of pure electric vehicle |
| CN104074971B (en) * | 2013-03-28 | 2016-03-30 | 合肥工业大学 | A kind of pure electric automobile automatic transmission box parking mechanism |
| CN107120431B (en) * | 2016-02-24 | 2018-12-28 | 上海汽车集团股份有限公司 | Halting mechanism, gearbox and automobile |
| CN107120431A (en) * | 2016-02-24 | 2017-09-01 | 上海汽车集团股份有限公司 | Halting mechanism, gearbox and automobile |
| CN105857286A (en) * | 2016-05-24 | 2016-08-17 | 湖北航天技术研究院特种车辆技术中心 | Parking brake device and method |
| CN105857286B (en) * | 2016-05-24 | 2019-01-18 | 湖北航天技术研究院特种车辆技术中心 | A kind of holding brake device and method |
| CN107956867A (en) * | 2016-10-14 | 2018-04-24 | 财团法人工业技术研究院 | Axial parking mechanism |
| CN107956867B (en) * | 2016-10-14 | 2019-06-14 | 财团法人工业技术研究院 | axial parking mechanism |
| CN108006222A (en) * | 2018-01-19 | 2018-05-08 | 吉林大学 | A kind of automatic transmission parking brake and its control method |
| CN111022640A (en) * | 2019-12-12 | 2020-04-17 | 中国第一汽车股份有限公司 | Parking system |
| CN111853231A (en) * | 2020-06-17 | 2020-10-30 | 义乌吉利自动变速器有限公司 | Parking device and vehicle with same |
| CN111853231B (en) * | 2020-06-17 | 2021-09-21 | 义乌吉利自动变速器有限公司 | Parking device and vehicle with same |
| CN113969976A (en) * | 2020-07-22 | 2022-01-25 | 蜂巢传动科技河北有限公司 | Hub-driven synchronous gear-shifting parking system |
| WO2022037741A1 (en) * | 2020-08-17 | 2022-02-24 | Schaeffler Technologies AG & Co. KG | Parking lock |
| CN113734118A (en) * | 2021-11-08 | 2021-12-03 | 杭州非古科技有限公司 | New energy automobile parking structure |
| CN113883270A (en) * | 2021-11-22 | 2022-01-04 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Parking mechanism and car |
| CN113883270B (en) * | 2021-11-22 | 2022-09-16 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Parking mechanism and car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20131113 |