CN104534087A - Parking locking mechanism for automatic transmission - Google Patents
Parking locking mechanism for automatic transmission Download PDFInfo
- Publication number
- CN104534087A CN104534087A CN201410681266.7A CN201410681266A CN104534087A CN 104534087 A CN104534087 A CN 104534087A CN 201410681266 A CN201410681266 A CN 201410681266A CN 104534087 A CN104534087 A CN 104534087A
- Authority
- CN
- China
- Prior art keywords
- parking
- roller
- park pawl
- rocking arm
- gear
- 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
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a parking locking mechanism for an automatic transmission. The parking locking mechanism for the automatic transmission comprises a shifting rocker arm, a parking gear and a parking pawl; the shifting rocker arm is fixed on a shifting shaft and drives the parking pawl to move through a driving assembly; the driving assembly comprises a parking rocker arm, a parking pushing rod and a roller seat; the parking rocker arm is fixed on the shifting shaft; one end of the parking pushing rod is hinged to the parking rocker arm and while the other end of the parking pushing rod is mounted to the roller seat; a roller is arranged on the roller seat; a returning spring is arranged between the roller seat and the parking pawl. The parking locking mechanism is reasonable and compact in structure, and reliable in performance.
Description
Technical field
The present invention relates to transmission for vehicles parts, be specially a kind of automatic transmission parking locking mechanism.
Background technique
Motor vehicle parking locking mechanism be used for stationary vehicle time by motor vehicle locking, be by realizing fixedly locked in a rotational direction for the transmission shaft of vehicle, belonging to the common safety installations of a kind of vehicle.
Parking locking mechanism is particularly useful for having in the motor vehicle of automatic transmission or in motor vehicle driven by mixed power or electric vehicle.
When parking locking mechanism is braked, on involved parts, effect has very large load, if now vehicle is still in running, load will be applied to vehicle by the transmission shaft place of locking by parking locking mechanism, therefore, require that the component of parking locking mechanism have enough reliabilities.
There is complex structure in existing automatic transmission parking locking mechanism, is difficult to arrange mostly, the problem that cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of automatic transmission parking locking mechanism, its compact, reliable performance rational in infrastructure.
Automatic transmission parking locking mechanism of the present invention, comprise gear shifting rocking arm, parking gear, and the park pawl that can engage with parking gear or be separated, gear shifting rocking arm is fixed on shift shaft, this shift shaft is driven by gear shifting rocking arm and rotates, and drive park pawl motion by driven unit, the rear end of park pawl is rotating to be fixed on case of transmission, in the bottom of its front end, there is engaging tooth, described driven unit comprises parking rocking arm, parking push rod and roller base, parking rocking arm is fixed on shift shaft, one end and this parking rocking arm of parking push rod are hinged, the other end and roller base are installed, described roller base is provided with the roller that can rotate around himself axis, have at the top of described park pawl front end and coordinate with roller the roller surface contacted, described roller surface has ridge, return spring is provided with between roller base and park pawl, this return spring has the trend that the engaging tooth of park pawl is separated with parking gear, described roller base can by parking push rod drive towards or dorsad park pawl move, applied or release parking active force by the ridge of the roller in roller base to park pawl roller surface, make park pawl with its rear end immovable point for a spot wobble, realize the engagement of engaging tooth and parking gear in park pawl or be separated.
Described roller base offers installation via hole, and screwed retaining ring through this installation via hole, and is fixed in termination in one end of parking push rod, and parking push rod is arranged with parking spring, and the two ends of this parking spring are against in parking push rod and roller base respectively.
Described driven unit also comprises the gear elastic locking component positioned parking rocking arm, and described parking rocking arm has waveform curved surface, and this gear elastic locking component is conflicted on the waveform curved surface of parking rocking arm.
Further, described gear elastic locking component is a flat spring, and the rear end of this flat spring is fixed on case of transmission, and its front end is provided with the roller coordinated with the waveform curved face contact of described parking rocking arm.
Described driven unit also comprises the guiding trestle fixing with case of transmission, described roller base is between this guiding trestle and park pawl, roller base is provided with two rollers contacted with rolling, one of them roller rolls with this guiding trestle and coordinates, and another roller rolls with the roller surface of park pawl and coordinates.
Described guiding trestle is provided with limit component, to limit the limit of sports record position of roller base.
There is following several work functions state in this parking locking mechanism:
Non-parking stall state: now park pawl is under the active force of return spring, park pawl moves up to non-parking position, and the engaging tooth in park pawl is separated with parking gear;
The non-parking lock state of parking stall: now the parking active force of roller base upper roller to park pawl overcomes the active force of return spring, park pawl is swung to parking gear, but the engaging tooth in park pawl just pushes against with the Topland of parking gear, prevent park pawl to continue motion, parking lock function completely cannot be completed;
The parking lock state of parking stall: the engaging tooth now in park pawl and the correct kernel of the teeth groove of parking gear, complete parking lock state.When halting mechanism is in the non-parking lock state of parking stall, when parking gear rotates towards any direction with transmission shaft, because the active force of the parking spring pair roller seat being in compressive state exists all the time, engaging tooth just can continue to embed parking gear teeth groove downwards, reaches parking lock state.
This practical described parking locking mechanism is rational in infrastructure, compact, and each parts are easy to manufacture, and generalization degree is high.Coordinated by the rolling between roller with park pawl and realize parking action, greatly reduce frictional force, parking efficiency and parking property of automatic shft are obviously promoted.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the matching relationship schematic diagram of roller and park pawl in the present invention;
Fig. 3 is the annexation schematic diagram of parking push rod and roller base in the present invention;
The matching relationship schematic diagram of parking rocking arm and gear elastic locking component in Fig. 4 the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated, and following examples only for explaining the present invention, do not form limiting the scope of the present invention.
Automatic transmission parking locking mechanism as shown in Figure 1, comprises gear shifting rocking arm 1, parking gear (not shown in FIG.) and park pawl 6.Gear shifting rocking arm 1 is fixed on shift shaft 2, and this shift shaft 2 drives rotation by gear shifting rocking arm 1, and drives park pawl 6 to move by driven unit.
The rear end of park pawl 6 is rotating to be fixed on case of transmission, and the top of its front end has the roller surface 602 coordinating with roller and contact, and roller surface has ridge 603, and the bottom of park pawl front end has engaging tooth 601.
Described driven unit comprises parking rocking arm 3, parking push rod 5, guiding trestle 7, gear elastic locking component 4 and roller base 8, and this parking rocking arm 3 is fixed on shift shaft 2.
See Fig. 3, described roller base 8 offers installation via hole, screwed retaining ring 502 through this installation via hole, and is fixed in termination in one end of parking push rod 5.The effect of this screwed retaining ring is when parking push rod is moved to the left, and prevents parking push rod 5 and roller base 8 from throwing off mutually.
The other end and this parking rocking arm 3 of parking push rod 5 are hinged, and this parking push rod 5 is also arranged with parking spring 501, and the two ends of parking spring 501 are against in parking push rod 5 and roller base 8 respectively.
The phenomenon that when described parking spring 5 can prevent vehicle to be positioned at P shelves, parking locking mechanism is stuck.During P shelves, may there is the non-parking lock state of parking stall in parking locking mechanism.By suitable camber of spring, prevent the large stress of parking locking mechanism from existing and part breakage occurs.When vehicle moves because of not locked, parking gear is with drive axis, and because the active force of the parking spring pair roller seat being in compressive state exists all the time, engaging tooth just can continue to embed parking gear teeth groove downwards, reaches parking lock state.
See Fig. 2, described guiding trestle 7 is fixed with case of transmission, plays the guiding of pair roller seat 8 motion and spacing effect.Described roller base 8 is between this guiding trestle 7 and park pawl 6, roller base 8 is provided with two to rotate around himself axis and the roller 801 of mutual Structure deformation, wherein a roller of top rolls with this guiding trestle 7 and coordinates, and a roller of below rolls with the roller surface 602 of park pawl 6 and coordinates.Described guiding trestle 7 is provided with the limit component 701 coordinated with roller base 8, and the limit component 701 in the present embodiment, for being located at the spacing preiection on guiding trestle 7, to limit the limit of sports record position of roller base, prevents roller from exceeding the roller surface of park pawl.
Return spring 802 is provided with, the trend that this return spring 802 has the engaging tooth 601 making park pawl to be separated with parking gear between roller base 8 and park pawl 6.
See Fig. 4, described parking rocking arm 3 has cristate waveform curved surface, gear elastic locking component 4 in the present embodiment is a flat spring, and the rear end of this flat spring is fixed on case of transmission, and its front end is provided with the roller coordinated with the waveform curved face contact of described parking rocking arm.Conflicted on the waveform curved surface of parking rocking arm by the roller of this flat spring front end, play the positioning action to parking rocking arm.
For the present embodiment and accompanying drawing, the working principle of this halting mechanism is:
When vehicle is linked into P shelves from R shelves, gear shifting rocking arm 1 is operated by selector and rotates counterclockwise, shift shaft 2 is driven synchronously to rotate counterclockwise, further drive parking rocking arm 3 rotates counterclockwise, thus drive roller base 8 to move right by parking push rod 5, make roller 801 extrude the ridge 603 of the roller surface of park pawl, overcome the active force of return spring 802, make park pawl to lower swing, form the non-parking lock state of parking stall or the parking lock state of parking stall.
When vehicle is linked into R shelves from P shelves, gear shifting rocking arm 1 is operated by selector and rotates clockwise, shift shaft 2 is driven synchronously to rotate clockwise, parking rocking arm 3 is driven to rotate clockwise, thus parking spring 501 pair roller seat 8 thrust to the right on release parking push rod 5, roller is moved to the left with roller base, roller leaves the ridge of roller surface, the active force of release to park pawl roller surface, now park pawl 6 is under the restoring force effect of return spring 802, park pawl is upwards swung, engaging tooth in park pawl and parking gear are thrown off, now halting mechanism is just in non-parking stall state.
Claims (6)
1. an automatic transmission parking locking mechanism, the park pawl (6) comprising gear shifting rocking arm (1), parking gear and can engage with parking gear or be separated, gear shifting rocking arm is fixed on shift shaft (2), this shift shaft is driven by gear shifting rocking arm and rotates, and drive park pawl motion by driven unit, the rear end of park pawl is rotating to be fixed on case of transmission, has engaging tooth (601) in the bottom of its front end
It is characterized in that: described driven unit comprises parking rocking arm (3), parking push rod (5) and roller base (8), parking rocking arm is fixed on shift shaft, one end and this parking rocking arm of parking push rod are hinged, the other end and roller base are installed, described roller base is provided with the roller (801) that can rotate around himself axis, there is at the top of described park pawl front end the roller surface (602) coordinating with roller and contact, described roller surface has ridge (603), return spring (802) is provided with between roller base and park pawl, this return spring has the trend that the engaging tooth of park pawl is separated with parking gear,
Described roller base can by parking push rod drive towards or dorsad park pawl move, applied or release parking active force by the ridge of the roller in roller base to park pawl roller surface, make park pawl with its rear end immovable point for spot wobble, realize the engagement of engaging tooth and parking gear in park pawl or be separated.
2. automatic transmission parking locking mechanism according to claim 1, it is characterized in that: in described roller base (8), offer installation via hole, one end of parking push rod (5) is through this installation via hole, and screwed retaining ring (502) is fixed in termination, parking push rod is arranged with parking spring (501), and the two ends of this parking spring are against in parking push rod and roller base respectively.
3. automatic transmission parking locking mechanism according to claim 1 and 2, it is characterized in that: described driven unit also comprises the gear elastic locking component (4) positioned parking rocking arm (3), described parking rocking arm has waveform curved surface, and this gear elastic locking component is conflicted on the waveform curved surface of parking rocking arm.
4. automatic transmission parking locking mechanism according to claim 3, it is characterized in that: described gear elastic locking component (4) is a flat spring, the rear end of this flat spring is fixed on case of transmission, and its front end is provided with the roller coordinated with the waveform curved face contact of described parking rocking arm (3).
5. automatic transmission parking locking mechanism according to claim 1 and 2, it is characterized in that: described driven unit also comprises the guiding trestle (7) fixing with case of transmission, described roller base (8) is positioned between this guiding trestle and park pawl (6), roller base is provided with two rollers contacted with rolling (801), one of them roller rolls with this guiding trestle and coordinates, and another roller rolls with the roller surface of park pawl and coordinates.
6. automatic transmission parking locking mechanism according to claim 5, is characterized in that: on described guiding trestle (7), be provided with limit component (701), to limit the limit of sports record position of roller base (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681266.7A CN104534087A (en) | 2014-11-25 | 2014-11-25 | Parking locking mechanism for automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410681266.7A CN104534087A (en) | 2014-11-25 | 2014-11-25 | Parking locking mechanism for automatic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104534087A true CN104534087A (en) | 2015-04-22 |
Family
ID=52849674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410681266.7A Pending CN104534087A (en) | 2014-11-25 | 2014-11-25 | Parking locking mechanism for automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104534087A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106884981A (en) * | 2015-11-17 | 2017-06-23 | 本田技研工业株式会社 | Parking locking device |
| CN108119644A (en) * | 2018-02-12 | 2018-06-05 | 青州市西北机械配件有限公司 | Vehicle speed variation manipulation device |
| CN108799491A (en) * | 2018-07-26 | 2018-11-13 | 中国第汽车股份有限公司 | It is a kind of that P operating mechanisms are promptly entered based on electric gear change system |
| CN110030377A (en) * | 2018-01-11 | 2019-07-19 | 通用汽车环球科技运作有限责任公司 | Line traffic control shift shutdown system |
| WO2020103981A1 (en) | 2018-11-21 | 2020-05-28 | Schaeffler Technologies AG & Co. KG | Parking lock and method for the assembly thereof |
| CN113357365A (en) * | 2021-05-27 | 2021-09-07 | 重庆长安汽车股份有限公司 | Hydraulic parking system of double-clutch transmission and vehicle |
| DE102020122986A1 (en) | 2020-09-03 | 2022-03-03 | Schaeffler Technologies AG & Co. KG | parking lock |
| DE102021116952A1 (en) | 2021-07-01 | 2023-01-05 | Schaeffler Technologies AG & Co. KG | parking lock |
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| DE10144056A1 (en) * | 2001-09-07 | 2003-03-27 | Ina Schaeffler Kg | Parking-lock for automatic gear has locking ring on gear shaft, locking holes for pawls, selector lever with rods system holding rollers, and thrust piece |
| CN200993230Y (en) * | 2006-12-26 | 2007-12-19 | 奇瑞汽车有限公司 | Parking mechanism for automobile automatic speed variator |
| 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 |
| CN101907169A (en) * | 2010-02-26 | 2010-12-08 | 浙江吉利汽车研究院有限公司 | Parking and braking mechanism of automobile gear box |
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| CN203656168U (en) * | 2013-11-14 | 2014-06-18 | 浙江吉利控股集团有限公司 | Parking locking device for vehicle transmission |
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2014
- 2014-11-25 CN CN201410681266.7A patent/CN104534087A/en active Pending
Patent Citations (7)
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| DE10144056A1 (en) * | 2001-09-07 | 2003-03-27 | Ina Schaeffler Kg | Parking-lock for automatic gear has locking ring on gear shaft, locking holes for pawls, selector lever with rods system holding rollers, and thrust piece |
| CN200993230Y (en) * | 2006-12-26 | 2007-12-19 | 奇瑞汽车有限公司 | Parking mechanism for automobile automatic speed variator |
| 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 |
| CN101907169A (en) * | 2010-02-26 | 2010-12-08 | 浙江吉利汽车研究院有限公司 | Parking and braking mechanism of automobile gear box |
| US20120018259A1 (en) * | 2010-07-23 | 2012-01-26 | Magna Powertrain Ag & Co Kg | Blocking mechanism |
| CN203656168U (en) * | 2013-11-14 | 2014-06-18 | 浙江吉利控股集团有限公司 | Parking locking device for vehicle transmission |
| CN103807434A (en) * | 2014-02-25 | 2014-05-21 | 浙江吉利控股集团有限公司 | Vehicle parking locking device |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106884981A (en) * | 2015-11-17 | 2017-06-23 | 本田技研工业株式会社 | Parking locking device |
| US10415702B2 (en) | 2015-11-17 | 2019-09-17 | Honda Motor Co., Ltd. | Parking lock system |
| CN110030377A (en) * | 2018-01-11 | 2019-07-19 | 通用汽车环球科技运作有限责任公司 | Line traffic control shift shutdown system |
| CN108119644A (en) * | 2018-02-12 | 2018-06-05 | 青州市西北机械配件有限公司 | Vehicle speed variation manipulation device |
| CN108119644B (en) * | 2018-02-12 | 2023-08-04 | 青州市西北机械配件有限公司 | Vehicle speed change control device |
| CN108799491A (en) * | 2018-07-26 | 2018-11-13 | 中国第汽车股份有限公司 | It is a kind of that P operating mechanisms are promptly entered based on electric gear change system |
| DE102018131263A1 (en) * | 2018-11-21 | 2020-05-28 | Schaeffler Technologies AG & Co. KG | Parking lock device with a countermovement element connected with limited movement |
| DE102019131479A1 (en) | 2018-11-21 | 2020-05-28 | Schaeffler Technologies AG & Co. KG | Parking lock and procedure for its assembly |
| DE102018131263B4 (en) | 2018-11-21 | 2020-07-23 | Schaeffler Technologies AG & Co. KG | Parking lock device with a counter-moving element connected with limited mobility |
| US11614167B2 (en) | 2018-11-21 | 2023-03-28 | Schaeffler Technologies AG & Co. KG | Parking lock and method for the assembly thereof |
| WO2020103981A1 (en) | 2018-11-21 | 2020-05-28 | Schaeffler Technologies AG & Co. KG | Parking lock and method for the assembly thereof |
| DE102020122986A1 (en) | 2020-09-03 | 2022-03-03 | Schaeffler Technologies AG & Co. KG | parking lock |
| CN113357365A (en) * | 2021-05-27 | 2021-09-07 | 重庆长安汽车股份有限公司 | Hydraulic parking system of double-clutch transmission and vehicle |
| CN113357365B (en) * | 2021-05-27 | 2022-07-05 | 重庆长安汽车股份有限公司 | Hydraulic parking system of double-clutch transmission and vehicle |
| DE102021116952A1 (en) | 2021-07-01 | 2023-01-05 | Schaeffler Technologies AG & Co. KG | parking lock |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
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| RJ01 | Rejection of invention patent application after publication |