CN103711900B - Halting mechanism - Google Patents
Halting mechanism Download PDFInfo
- Publication number
- CN103711900B CN103711900B CN201310747659.9A CN201310747659A CN103711900B CN 103711900 B CN103711900 B CN 103711900B CN 201310747659 A CN201310747659 A CN 201310747659A CN 103711900 B CN103711900 B CN 103711900B
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- Prior art keywords
- parking
- driving mechanism
- push rod
- rocking arm
- cam
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Classifications
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- 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
- F16H63/3433—Details of latch mechanisms, e.g. for keeping pawls out of engagement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The present invention relates to a kind of actuating device with lockable mechanism being applied on vehicle, particularly relate to a kind of halting mechanism, it includes that parking is taken turns, be rotatably connected in transmission case body can take turns, with parking, the parking rocking arm engaged, gear level, and connection is arranged on the parking-driving mechanism between gear level and parking rocking arm, described parking-driving mechanism rotates under driving in the parking of gear level, have and drive parking rocking arm to take turns, with parking, the parking campaign engaged, parking-driving mechanism is connected with parking-driving mechanism is applied elastic acting force, to suppress the elastic device of parking-driving mechanism parking campaign.Using technique scheme, by increasing torsion spring on gearshift ratchet, it is achieved the force-sensitive in shift process is with spacing, and can improve the reliability of parking and startup, its simple in construction reduces integrally-built taking up room.
Description
Technical field
The present invention relates to a kind of actuating device with lockable mechanism being applied on vehicle, particularly relate to a kind of halting mechanism.
Background technology
At present, it is manually to be linked into " P " shelves that automatic transmission and decelerator realize parking, the mechanical organ as halting mechanism is driven to move, existing universal halting mechanism, mainly include that parking is taken turns, parking rocking arm, gear level, and connection is arranged on the parking-driving mechanism between gear level and parking rocking arm, parking-driving mechanism rotates under driving in the parking of gear level, parking rocking arm can be driven to engage to realize parking with parking wheel, but this structure needs to fix a positioning seat coordinated with the gearshift spacing locking of ratchet in transmission case body, entirety is made to take up room greatly, mechanical organ processed complex, and operating reliability is poor, transmission torque is farther out, easily there was a mechanical failure, cause maintenance cost higher.
Chinese invention patent CN 202091498 U announces the halting mechanism of a kind of automatic gearbox, belongs to field of mechanical technique.The halting mechanism of this automatic gearbox, including housing, the gearshift swing arm that operated by selector, accept performing device, the gear spring of gear perception, the depression bar being assemblied in front and rear housings, the park pawl assembly engaged with parking ratchet wheel that is assemblied on differential casing being provided of gearshift swinging arm, park pawl assembly is sleeved on ratchet gyroaxis, and gearshift swing arm, execution device, gear spring, depression bar, park pawl assembly, ratchet gyroaxis and parking ratchet wheel are integrated on an assembly.Park pawl assembly has some locking teeth that can snap in parking ratchet wheel teeth groove, park pawl assembly includes park pawl and return spring, the installing hole for return spring is offered in park pawl, return spring one end is fixed in the installing hole of park pawl, and the other end is fixed on case of transmission.Perform device to include shifting shaft, transmission arm, steady pin, connecting rod, be separately mounted to the axle sleeve at connecting rod two ends and perform bar assembly, perform bar assembly to include performing bar, cam ring, execution bar spring, back-up ring, wherein cam ring, execution bar spring, back-up ring are sequentially sleeved in execution bar, execution bar is respectively equipped with two limit points on two ends, by execution bar pressure mounting of the spring in the middle of back-up ring and cam ring, and back-up ring and cam ring are close to perform in the limit point at bar two ends respectively.Use technique scheme, however it remains structure is complicated, take up room big defect.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of it can be avoided that miss parking and the halting mechanism of simple in construction.
For achieving the above object, a kind of halting mechanism of the present invention, including parking wheel, be rotatably connected in transmission case body can with parking wheel engagement parking rocking arm, gear level and be connected the parking-driving mechanism being arranged between gear level and parking rocking arm, described parking-driving mechanism rotates under driving in the parking of gear level, have and drive parking rocking arm to take turns, with parking, the parking campaign engaged, parking-driving mechanism is connected with and parking-driving mechanism is applied elastic acting force, to suppress the elastic device of parking-driving mechanism parking campaign.Use technique scheme, parking at gear level rotates under driving, parking-driving mechanism drives parking rocking arm to engage to realize parking with parking wheel, and by the elastic device that is arranged on parking-driving mechanism, parking-driving mechanism applied elastic acting force, so that when non-parked state, prevent parking-driving mechanism from producing parking campaign, it is to avoid the generation of mistake parking phenomenon, it effectively simplifies whole halting mechanism, has saved taking up room of halting mechanism.
As the restriction to aforesaid way, described elastic device is the torsion spring being connected between parking-driving mechanism and case of transmission.
As the restriction to aforesaid way, described parking-driving mechanism includes:
Gearshift ratchet, is fixedly connected on gear level, when gear level rotates, has the swing being oscillation center line with gear level axis；
Parking push rod, is rotatably connected on gearshift ratchet, under the driving that gearshift ratchet swings, has the movement along own axes；
Locating piece, is fixedly connected on case of transmission, and arranges with parking rocking arm spacing；
Parking cam, connects and is arranged on parking push rod, under the driving that parking push rod moves axially, has and is limited by locating piece and promote parking rocking arm to take turns, with parking, the motion engaged.
As the restriction to aforesaid way, described elastic device is connected on gear shift ratchet.Owing to gear level applies driving force by gearshift ratchet to parking-driving mechanism, elastic device is arranged on gearshift ratchet, the driving force that gear level provides can not only be utilized so that parking-driving mechanism to apply active force suppression parking campaign, can also be when gear level applies, to parking-driving mechanism, the driving force driving parking campaign by gearshift ratchet, store energy, improve gearshift force-sensitive during parking.
As the restriction to aforesaid way, described parking push rod is inserted in parking cam, is positioned on the parking push rod of parking cam to be fixed with and can keep out the block moving apart parking cam with restriction parking push rod along parking campaign opposite direction coordinated with parking cam；Parking push rod is set with overhead spring on parking cam.By the setting of this structure, realize the parking push rod unidirectional position-limiting action in motor process, and by the spring arranged, in parking campaign, by spring push parking cam so that parking actuated by cams parking rocking arm and parking wheel engage, it is achieved parking, and parking push rod be in contact with parking wheel surface and do not take turns with parking engage time, by the resilient force of spring, it can be ensured that parking rocking arm finally engages with parking wheel and realizes parking.
As the restriction to aforesaid way, the connecting rod that parking push rod swings place plane by central axis in gearshift ratchet is connected with gearshift pawl wheel.
As the restriction to aforesaid way, described locating piece be provided with the first lower concave part of arc with parking wheel opposite side, described parking cam has reducing and arranges and can embed the tapered portion in lower concave part.By the setting of the first lower concave part, making parking cam when moving axially along parking rocking arm, parking cam and locating piece have bigger contact area, improve the stability of parking motor process.
As the restriction to aforesaid way, parking arm is provided with the second lower concave part arranged with the first lower concave part mirror image.
In sum, using technique scheme, by increasing torsion spring on gearshift ratchet, it is achieved the force-sensitive in shift process is with spacing, and can improve the reliability of parking and startup, its simple in construction reduces integrally-built taking up room.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and detailed description of the invention to the present invention make further describe in detail:
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is Fig. 1 structural representation when overlooking；
Fig. 3 is schematic diagram during parked state of the present invention；
Fig. 4 is schematic diagram during the non-parked state of the present invention；
Fig. 5 is the sectional view driving top-pushing mechanism part-structure in embodiment.
In figure:
1, parking wheel；2, parking rocking arm；21, connecting hole；22, engaging tooth；23, the second lower concave part；3, gear level；4, torsion spring；41, the first fixing hole；5, gearshift ratchet；51, connecting rod；52, the second fixing hole；53, the 3rd fixing hole；6, locating piece；61, the first lower concave part；7, parking push rod；8, parking cam；81, step-like projection；82, tapered portion；83, round platform；9, spring；10, block.
Detailed description of the invention
As shown in Figure 1, the present embodiment relates to a kind of halting mechanism, 1 is taken turns including parking, the parking rocking arm 2 that can engage with parking wheel 1 being rotatably connected in the transmission case body not shown in figure, gear level 3, and connection is arranged on the parking-driving mechanism between gear level 3 and parking rocking arm 2, parking-driving mechanism rotates under driving in the parking of gear level 3, there is the parking campaign driving parking rocking arm 2 to engage with parking wheel 1, the design philosophy of the present invention is on parking-driving mechanism, it is connected with and parking-driving mechanism is applied elastic acting force, to suppress the elastic device of parking-driving mechanism parking campaign, elastic device in the present embodiment uses torsion spring 4.
Design philosophy based on the present invention, in the present embodiment, as shown in Figure 1 with Figure 2, parking rocking arm 2 is the bar with certain length, its one end be provided with for figure not shown in the connecting hole 21 that is rotationally connected of case of transmission, the other end is provided with the engaging tooth 22 engaged with parking wheel 1.
Parking-driving mechanism includes the gearshift ratchet 5 being fixedly connected on gear level 3, the locating piece 6 being fixedly connected on case of transmission, is rotatably connected on the parking push rod 7 on gearshift ratchet 5, and connects the parking cam 8 being arranged on parking push rod 7.
Wherein, gearshift ratchet 5 is for having certain thickness platy structure, it is shaped like the triangular shape structure arranged in corner point rounding off, it is connected with gear level 3 in a corner point, when gear level 3 rotates along own axes, the swing that it is oscillation center line with the axis of gear level 3 that gearshift ratchet 5 has；Locating piece 6 is fixedly connected in transmission case body, it is arranged with parking rocking arm 2 spacing, locating piece 6 with parking rocking arm 2 opposite side are provided with the first lower concave part 61 of arc, accordingly, it is also equipped with on parking rocking arm 2 coordinating with the second lower concave part 23 with the first lower concave part 61 mirror surround a hollow round hole shape structure to the second lower concave part 23 arranged, the first lower concave part 61；As Fig. 2 combines shown in Fig. 3, parking push rod 7 is rotatably connected on the middle part of gearshift ratchet 5, in order to realize that the swing of gearshift ratchet 5 is changed into moving axially of parking push rod 7, being fixedly connected with a central axis on gearshift ratchet 5 and swing the connecting rod 51 of place plane in gearshift ratchet 5, parking push rod 7 is then rotatably connected in connecting rod 51 to realize being rotatedly connected with gearshift ratchet 5.
Parking push rod 7 connects the parking cam 8 of setting, its structure such as Fig. 3, Fig. 4 combines shown in Fig. 5, parking cam 8 has the tapered portion 82 that reducing arranges and can embed in lower concave part, and the round platform 83 being connected with tapered portion 82, tapered portion 82 is inserted into by the first lower concave part 61, and the diameter of round platform 83 is corresponding to the pore size of the circular hole structure that the first lower concave part 61 and the second lower concave part 23 under parked state surround, this structure makes parking cam 8 when moving axially along parking push rod 7, under the restriction of locating piece 6, tapered portion 82 can gradually promote parking rocking arm 2 to rotate, and then engaging tooth 22 and parking wheel 1 is engaged realize parking, now, the aperture of the circular hole structure surrounded by the first lower concave part 61 and the second lower concave part 23 is in the expansion state of maximum.
In order to realize being connected of parking push rod 7 and parking cam 8, as shown in Figure 5, in parking push rod 7 is inserted into parking cam 8 and be deep into the bottom of parking cam 8, and it is positioned on the parking push rod 7 of parking cam 8 to be fixed with and can keep out the block 10 moving apart parking cam 8 with restriction parking push rod 7 along parking campaign opposite direction coordinated with parking cam 8, by the setting of this structure, parking push rod 7 is only along towards the direction of parking cam 8 and parking cam 8 relative motion.
Being set with spring 9 on the parking push rod 7 outside parking cam 8, one end of spring 9 is fixedly connected on the one end with connecting rod 51, and other end overhead is on step-like protruding 81 within parking cam 8.Setting by spring 9 so that when parking push rod 7 moves to parking cam 8 direction, spring 9 parking cam 8 is applied elastic acting force, to promote parking cam 8 motion to realize parking；And when engaging tooth 22 is conflicted and do not engaged with parking wheel 1 on the surface of parking wheel 1, spring 9 is compressed, and then makes after parking wheel 1 turns over certain angle, and spring 9 can promote parking rocking arm 2 to continue to realize parking and rotate.
Torsion spring 4 in the present embodiment connects to be arranged on shifts gears between ratchet 5 and case of transmission, for the ease of describing, the torsion spring 4 fixing hole on case of transmission is expressed as the first fixing hole 41, the torsion spring 4 fixing hole on gearshift ratchet 5 is expressed as the second fixing hole 52, and gear level 3 is expressed as the 3rd fixing hole 53 with the fixing hole of gearshift ratchet 5；When non-parking, as shown in Figure 4, when non-parked state, first fixing hole 41, relative to the second fixing hole 52 and line of the 3rd fixing hole 53, is located close to the side of parking wheel 1, now, the Impact direction of torsion spring 4 is to bottom right, so parking push rod 7 stress is to the right so that parking cam 8 will not promote the parking of parking rocking arm 2 to rotate, prevent the appearance of parking situation by mistake；And when parking, as shown in Figure 3, the first fixing hole 41, relative to the second fixing hole 52 and line of the 3rd fixing hole 53, is located remotely from the side of parking wheel 1.
When parking operation, as it is shown on figure 3, gear level 3 rotates, gearshift ratchet 5 is driven to swing；Gearshift ratchet 5 drives parking push rod 7 to press spring 9 to parking cam 8 side shifting, spring 9 promotes parking cam 8 with the direction of diagram to left movement, under the restriction effect of locating piece 6, along with the tapered portion 82 of parking cam 8 is gradually moved to the left by the right side of locating piece 6, tapered portion 82 promotes the engaging tooth 22 of parking rocking arm 2 to move to parking wheel 1, and final engagement with parking wheel 1 realizes parking.In recovery process after parking completes, parking push rod 7 moves right with state shown in Fig. 3, and in this motor process, block 10 is conflicted with the boss within parking cam 8, and then pull parking cam 8 to move right, finally make parking rocking arm 2 be disengaged from parking wheel 1.
Claims (4)
1. a halting mechanism, take turns including parking, be rotatably connected in transmission case body can take turns, with parking, the parking rocking arm engaged, gear level, and connection is arranged on the parking-driving mechanism between gear level and parking rocking arm, described parking-driving mechanism rotates under driving in the parking of gear level, have and drive parking rocking arm to take turns, with parking, the parking campaign engaged, it is characterized in that: be connected with on parking-driving mechanism and parking-driving mechanism is applied elastic acting force, to suppress the elastic device of parking-driving mechanism parking campaign, described parking-driving mechanism includes:
Gearshift ratchet, is fixedly connected on gear level, when gear level rotates, has the swing being oscillation center line with gear level axis；
Parking push rod, is rotatably connected on gearshift ratchet, under the driving that gearshift ratchet swings, has the movement along own axes；
Locating piece, is fixedly connected on case of transmission, and arranges with parking rocking arm spacing；
Parking cam, connects and is arranged on parking push rod, under the driving that parking push rod moves axially, has and is limited by locating piece and promote parking rocking arm to take turns, with parking, the motion engaged；
The connecting rod that described parking push rod swings place plane by central axis in gearshift ratchet is connected with gearshift pawl wheel, described locating piece be provided with the first lower concave part of arc with parking wheel opposite side, described parking cam has reducing and arranges and can embed the tapered portion in lower concave part, is provided with the second lower concave part arranged with the first lower concave part mirror image on parking rocking arm.
2. according to the halting mechanism described in claim 1, it is characterised in that: described elastic device is the torsion spring being connected between parking-driving mechanism and case of transmission.
Halting mechanism the most according to claim 1, it is characterised in that: described elastic device is connected on gear shift ratchet.
Halting mechanism the most according to claim 1, it is characterized in that: described parking push rod is inserted in parking cam, be positioned on the parking push rod of parking cam to be fixed with and can keep out the block moving apart parking cam with restriction parking push rod along parking campaign opposite direction coordinated with parking cam；Parking push rod is set with overhead spring on parking cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747659.9A CN103711900B (en) | 2013-12-31 | 2013-12-31 | Halting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747659.9A CN103711900B (en) | 2013-12-31 | 2013-12-31 | Halting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711900A CN103711900A (en) | 2014-04-09 |
| CN103711900B true CN103711900B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310747659.9A Active CN103711900B (en) | 2013-12-31 | 2013-12-31 | Halting mechanism |
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| CN (1) | CN103711900B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358866B (en) * | 2014-10-28 | 2016-11-30 | 长城汽车股份有限公司 | A kind of halting mechanism, variator and automobile |
| 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 |
| US10041591B2 (en) * | 2015-07-13 | 2018-08-07 | Ford Global Technologies, Llc | Transmission park mechanism |
| CN106481814B (en) * | 2015-09-02 | 2018-03-16 | 广州汽车集团股份有限公司 | Electric automobile gear device and its halting mechanism |
| US10704689B2 (en) * | 2016-06-15 | 2020-07-07 | Schaeffler Technologies AG & Co. KG | Parking lock for a motor vehicle |
| CN106545655B (en) * | 2016-11-01 | 2020-01-21 | 北京新能源汽车股份有限公司 | Parking mechanism for vehicle |
| DE102018204507B4 (en) * | 2018-03-23 | 2022-12-08 | Audi Ag | Parking lock for a motor vehicle, in particular for a motor vehicle, method for operating such a parking lock, transmission and motor vehicle |
| CN113330238B (en) * | 2019-04-18 | 2023-02-28 | 舍弗勒技术股份两合公司 | Parking mechanism and dual-clutch transmission realizing parking function through shifting fork shaft driving |
| CN110131412A (en) * | 2019-05-31 | 2019-08-16 | 株洲齿轮有限责任公司 | Parking-driving mechanism |
| CN110159756A (en) * | 2019-06-21 | 2019-08-23 | 重庆青山工业有限责任公司 | A kind of automatic transmission stopping mechanism and parking execute method |
| CN110671475A (en) * | 2019-10-12 | 2020-01-10 | 赣州经纬科技股份有限公司 | Full-time four-wheel drive transmission |
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| 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 |
| CN102338213A (en) * | 2010-07-16 | 2012-02-01 | 中国第一汽车集团公司 | Novel parking braking mechanism of dual clutch automatic transmission (DCT) |
| CN102506168A (en) * | 2011-10-21 | 2012-06-20 | 奇瑞汽车股份有限公司 | Parking mechanism of automatic transmission for 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4784363B2 (en) * | 2006-03-28 | 2011-10-05 | いすゞ自動車株式会社 | Parking lock device for transmission |
| JP2010241256A (en) * | 2009-04-06 | 2010-10-28 | Toyota Motor Corp | Parking device |
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- 2013-12-31 CN CN201310747659.9A patent/CN103711900B/en active Active
Patent Citations (4)
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| 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 |
| CN102338213A (en) * | 2010-07-16 | 2012-02-01 | 中国第一汽车集团公司 | Novel parking braking mechanism of dual clutch automatic transmission (DCT) |
| 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 |
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| CN103711900A (en) | 2014-04-09 |
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Effective date of registration: 20191115 Address after: 071000 No.75, Dongsheng Road, Lianchi District, Baoding City, Hebei Province Patentee after: Beehive transmission technology Hebei Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |
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