CN202091498U - Parking mechanism for automatic transmission of automobile - Google Patents
Parking mechanism for automatic transmission of automobile Download PDFInfo
- Publication number
- CN202091498U CN202091498U CN2011201259265U CN201120125926U CN202091498U CN 202091498 U CN202091498 U CN 202091498U CN 2011201259265 U CN2011201259265 U CN 2011201259265U CN 201120125926 U CN201120125926 U CN 201120125926U CN 202091498 U CN202091498 U CN 202091498U
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- bar
- assembly
- park pawl
- parking
- spring
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Abstract
The utility model provides a parking mechanism for an automatic transmission of an automobile, belonging to the technical field of machinery, and aiming at solving the technical problems of complex structure, poor safety performance and the like of the parking mechanism of the existing automobile automatic transmission. The parking mechanism for the automatic transmission of the automobile comprises a housing, a shifting swing arm operated by a shifter, an executing device used for accepting the action of the shifting swing arm, a shift spring used for offering shift perception, two press rods respectively assembled at the front and the rear of the housing, and a parking pawl assembly assembled on a housing of a differential mechanism and meshed with a parking ratchet wheel, wherein the parking pawl assembly is sheathed on a pawl rotating shaft, and the shifting swing arm, the executing device, the shift spring, the press rods, the parking pawl assembly, the pawl rotating shaft and the parking ratchet wheel are integrated on one assembly. The parking mechanism has the advantages of being simple and compact in structure, being safe and reliable, having a low cost, and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the halting mechanism of a kind of halting mechanism, particularly a kind of automatic gearbox.
Background technique
Flourish along with current society, rapid growth of economy, automobile has been come into huge numbers of families, becomes common people's requisite traffic tool of going on a journey.And the development of automobile industry also is with rapid changepl. never-ending changes and improvements, emerges in large numbers the automatic transmission of various ways.The vehicle of coupling automatic transmission is because its easy and simple to handle, high travelling comfort has become a kind of trend that speed changer develops.Halting mechanism is a kind of safety installations that prevents in the automatic transmission that vehicle from sliding, and is anchored on the certain position even slope with making the reliable and no time limit of automobile.And halting mechanism adopts mechanical structure, has increased Security, the reliability of halting mechanism widely.
There is following problem in the design of disclosed automatic transmission halting mechanism at present: it provides the part positioning rail plate and the planar spring complex structure of gear perception, and the positioning rail plate needs essence to dash or powder metallurgy manufacture difficulty, supplier management complexity; The return torsion spring is unreliable, can't guarantee stable ratchet returning place force only according to the torsion spring moment of torsion; The halting mechanism complex structure, the part number of components is various, the assembly integration is poor, cause transmission assembly assembling work amount big; The entire mechanism arrangement space requires big; Carry out the limit structure depression bar complex structure of bar assembly, and assembly process process is poor; The assembling assembly process process of Parking ratchet and differential mechanism is poor, Safety performance is low.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, proposed a kind of safe and reliable, simple/halting mechanism of compact automatic gearbox.
The purpose of this utility model can realize by following technical proposal: a kind of halting mechanism of automatic gearbox, comprise housing, gearshift swing arm by the selector operation, accept the actuating device of gearshift swinging arm, the gear spring of gear perception is provided, depression bar before and after being assemblied on the housing, be assemblied on the differential casing and the park pawl assembly Parking ratchet engaged, described park pawl assembly is sleeved on the ratchet turning axle, it is characterized in that described gearshift swing arm, actuating device, the gear spring, depression bar, the park pawl assembly, ratchet turning axle and Parking ratchet are integrated on the assembly.
The halting mechanism of this automatic gearbox snaps in Parking ratchet teeth groove by locking tooth on the park pawl and realizes, to shift gears the axle, transmission arm, execution bar assembly etc. is integrated on the big assembly, but park pawl wraparound rotating shaft rotation, at the park pawl end return spring is housed, utilize the lever ratio of science can make entire mechanism Parking safely and reliably, withdraw from Parking, the gear perception obtains by the gear spring that is installed on the housing, the gear spring plays positioning action to transmission arm and execution bar assembly simultaneously, prevent the halting mechanism off-gear, housing was installed before and after depression bar was striden, realization is to carrying out the spacing of bar assembly, lead to carrying out the bar assembly by the front and back housing simultaneously, the halting mechanism of this automatic gearbox adopts integrated to greatest extent design concept, be easy to assembling, arrangement space is little, the component manufacture method is simple, and cost is low, and structure is terse, compact, safe and reliable.
In the halting mechanism of above-mentioned automatic gearbox, described park pawl assembly has some locking teeth that can snap in the Parking ratchet teeth groove.
In the halting mechanism of above-mentioned automatic gearbox, described park pawl assembly comprises park pawl and return spring, offer the mounting hole that is used for return spring on the described park pawl, described return spring one end is fixed in the mounting hole of park pawl, and the other end is fixed on the case of transmission.
In the halting mechanism of above-mentioned automatic gearbox, described described actuating device comprises gearshift axle, transmission arm, fixing pin, connecting rod, is installed in the axle sleeve and the execution bar assembly at connecting rod two ends respectively.
In the halting mechanism of above-mentioned automatic gearbox, described execution bar assembly comprises carries out bar, cam ring, execution bar spring, back-up ring, wherein cam ring, execution bar spring, back-up ring are enclosed within the execution bar successively, be respectively equipped with two spacing points on the two ends on the execution bar, to carry out the 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 respectively on the spacing point of carrying out the bar two ends.
In the halting mechanism of above-mentioned automatic gearbox, also be provided with in the described housing carrying out the guiding device depression bar of bar assembly, the depression bar two ends are installed in the housing circular groove of front and back, moving axially of restriction depression bar, simultaneously depression bar one end is by the pin step surface that is in depression, and the raised step face that processes in the housing mounting groove cooperates with depression bar, realizes the function of restriction depression bar rotation.
Compared with prior art, the halting mechanism of this automatic gearbox adopts integrated to greatest extent design concept, is easy to assembling, arrangement space is little, and the component manufacture method is simple, and cost is low, and structure is terse, compact, safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an actuating device structural representation of the present utility model.
Fig. 3 is an execution bar assembly structure schematic representation of the present utility model.
Fig. 4 is a park pawl assembly structure schematic representation of the present utility model.
Among the figure, 1, the gearshift swing arm; 2, actuating device; 3, gear spring; 4, depression bar; 5, park pawl assembly; 6, ratchet turning axle; 7, Parking ratchet; 21, gearshift axle; 22, transmission arm; 23, fixing pin; 24, connecting rod; 25, axle sleeve; 26, carry out the bar assembly; 51, park pawl; 52, return spring; 261, carry out bar; 262, cam ring; 263, carry out the bar spring; 264, back-up ring.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figures 1 to 4, the halting mechanism of this automatic gearbox, comprise housing, gearshift swing arm 1 by the selector operation, accept the actuating device 2 of gearshift swing arm 1 action, the gear spring 3 of gear perception is provided, depression bar 4 before and after being assemblied on the housing, be assemblied on the differential casing and park pawl assemblies 5 Parking ratchet 7 engagement, described park pawl assembly 5 is sleeved on the ratchet turning axle 6, it is characterized in that described gearshift swing arm 1, actuating device 2, gear spring 3, depression bar 4, park pawl assembly 5, ratchet turning axle 6 and Parking ratchet 7 are integrated on the assembly.
Actuating device 2 comprises gearshift axle 21, transmission arm 22, fixing pin 23, connecting rod 24, be installed in the axle sleeve 25 at connecting rod 24 two ends respectively and carry out bar assembly 26, comprise execution bar 261 and carry out bar assembly 26, cam ring 262, carry out bar spring 263, back-up ring 264, wherein cam ring 262, carry out bar spring 263, back-up ring 264 is enclosed within successively to be carried out on the bar 261, be respectively equipped with two spacing points on the two ends on the execution bar 261, to carry out bar spring 263 and be fitted in the middle of back-up ring 264 and the cam ring 262, and back-up ring 264 and cam ring 262 are close to respectively on the spacing point of carrying out the bar two ends.
Park pawl assembly 5 has some locking teeth that can snap in Parking ratchet 7 teeth groove.Park pawl assembly 5 comprises park pawl 51 and return spring 52, offer the mounting hole that is used for return spring 52 on the described park pawl 51, described return spring 52 1 ends are fixed in the mounting hole of park pawl 51, and the other end is fixed on the case of transmission.Should be provided with in the halting mechanism carrying out the guiding device depression bar 4 of bar assembly 26, depression bar 4 two ends are installed in the housing circular groove of front and back, moving axially of restriction depression bar 4, simultaneously depression bar 4 one ends are by the pin step surface that is in depression, and the raised step face that processes in the housing mounting groove cooperates with depression bar 4, realizes the function of restriction depression bar 4 rotations.
When vehicle stationary or the speed of a motor vehicle during less than 5Km/h, selector is hung and is entered car bumper, this moment, the shift handle of selector spurred gearshift swing arm 1, make 21 rotations of gearshift axle, transmission arm 22 drives connecting rod 24 rotations, thereby make the axle sleeve 25 that is installed on the connecting rod 24 on gear spring 3, be moved into the Parking gear, obtain the gear sense; And the execution bar assembly 26 that is installed in the other end of connecting rod 24 also together moves, the maximum outside diameter termination of carrying out the cam ring on the bar assembly 26 contacts depression bar 4 depression bar groove lower end surfaces, force cam ring to promote to carry out the bar spring simultaneously, under the pressure effect of depression bar 4, discharge and carry out the bar spring this moment when park pawl 51 locking teeth are relative with Parking ratchet 7 teeth groove, and cam ring is moved on park pawl 51, park pawl 51 locking teeth enter Parking ratchet 7 teeth groove, thereby realize Parking.
When selector in the automobile withdraws from the Parking gear, selector is by flexible axle pulling gearshift swing arm 1, make 21 rotations of gearshift axle, transmission arm 22 drives connecting rod 24 rotations, thereby the axle sleeve 25 that is installed on the connecting rod 24 is moved on gear spring 3 withdraw from the Parking gear, and the execution bar assembly 26 that is installed in the other end of connecting rod 24 also together moves, force the cam ring path to touch depression bar 4 depression bars 4 groove lower end surfaces, from but eliminated pressure to park pawl 51, park pawl 51 is under the effect of its tail end return spring 52 simultaneously, utilize rational lever ratio, from then on park pawl 51 breaks away from the Parking retaining around ratchet turning axle 6 returns.
The halting mechanism of this automatic gearbox snaps in Parking ratchet 7 teeth groove by locking tooth on the park pawl 51 and realizes, to shift gears the axle 21, transmission arm 22, carrying out bar assembly 26 grades is integrated on the big assembly, but park pawl 51 wraparound rotating shafts rotation, at park pawl 51 ends return spring 52 is housed, utilize the lever ratio of science can make entire mechanism Parking safely and reliably, withdraw from Parking, the gear perception obtains by the gear spring 3 that is installed on the housing, 3 pairs of transmission arms 22 of gear spring and execution bar assembly 26 play positioning action simultaneously, prevent the halting mechanism off-gear, housing was installed before and after depression bar 4 was striden, realization is to carrying out the spacing of bar assembly 26, lead to carrying out bar assembly 26 by the front and back housing simultaneously, the halting mechanism of this automatic gearbox adopts integrated to greatest extent design concept, be easy to assembling, arrangement space is little, the component manufacture method is simple, and cost is low, and structure is terse, compact, safe and reliable.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used 1, the swing arm of shifting gears morely; 2, actuating device; 3, gear spring; 4, depression bar; 5, park pawl assembly; 6, ratchet turning axle; 7, Parking ratchet; 21, gearshift axle; 22, transmission arm; 23, fixing pin; 24, connecting rod; 25, axle sleeve; 26, carry out the bar assembly; 51, park pawl; 52, return spring; 261, carry out bar; 262, cam ring; 263, carry out the bar spring; 264, term such as back-up ring, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. the halting mechanism of an automatic gearbox, comprise housing, gearshift swing arm (1) by the selector operation, accept the actuating device (2) of gearshift swing arm (1) action, the gear spring (3) of gear perception is provided, depression bar (4) before and after being assemblied on the housing, be assemblied on the differential casing and park pawl assembly (5) Parking ratchet (7) engagement, described park pawl assembly (5) is sleeved on the ratchet turning axle (6), it is characterized in that described gearshift swing arm (1), actuating device (2), gear spring (3), depression bar (4), park pawl assembly (5), ratchet turning axle (6) and Parking ratchet (7) are integrated on the assembly.
2. the halting mechanism of automatic gearbox according to claim 1 is characterized in that, described park pawl assembly (5) has some locking teeth that can snap in Parking ratchet (7) teeth groove.
3. the halting mechanism of automatic gearbox according to claim 2, it is characterized in that, described park pawl assembly (5) comprises park pawl (51) and return spring (52), described park pawl offers the mounting hole that is used for return spring (52) on (51), described return spring (52) one ends are fixed in the mounting hole of park pawl (51), and the other end is fixed on the case of transmission.
4. the halting mechanism of automatic gearbox according to claim 1, it is characterized in that described actuating device (2) comprises gearshift axle (21), a transmission arm (22), fixing pin (23), connecting rod (24), is installed in the axle sleeve (25) and the execution bar assembly (26) at connecting rod (24) two ends respectively.
5. the halting mechanism of automatic gearbox according to claim 4, it is characterized in that, described execution bar assembly (26) comprises carries out bar (261), cam ring (262), carry out bar (261) spring, back-up ring (264), cam ring (262) wherein, carry out bar (261) spring, back-up ring (264) is enclosed within successively carries out bar (261), upward be respectively equipped with two spacing points on the two ends at execution bar (261), to carry out bar (261) pressure mounting of the spring in the middle of back-up ring (264) and cam ring (262), and back-up ring (264) and cam ring (262) are close to respectively on the spacing point of carrying out bar (261) two ends.
6. the halting mechanism of automatic gearbox according to claim 4, it is characterized in that, also be provided with in the described housing carrying out the guiding device depression bar (4) of bar assembly (26), depression bar (4) two ends are installed in the housing circular groove of front and back, moving axially of restriction depression bar (4), simultaneously depression bar (4) one ends are by the pin step surface that is in depression, and the raised step face that processes in the housing mounting groove cooperates with depression bar (4), realizes limiting the function that depression bar (4) rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201259265U CN202091498U (en) | 2011-04-26 | 2011-04-26 | Parking mechanism for automatic transmission of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201259265U CN202091498U (en) | 2011-04-26 | 2011-04-26 | Parking mechanism for automatic transmission of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091498U true CN202091498U (en) | 2011-12-28 |
Family
ID=45366566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201259265U Expired - Fee Related CN202091498U (en) | 2011-04-26 | 2011-04-26 | Parking mechanism for automatic transmission of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091498U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865362A (en) * | 2012-09-20 | 2013-01-09 | 安徽江淮汽车股份有限公司 | Parking mechanism for automatic transmission |
| CN103453128A (en) * | 2013-07-31 | 2013-12-18 | 哈尔滨东安汽车发动机制造有限公司 | Six-speed automatic transmission gear shifting and parking mechanism |
| CN104149612A (en) * | 2014-04-30 | 2014-11-19 | 浙江吉利控股集团有限公司 | Electronic parking mechanism of double-clutch speed changer |
| CN104373546A (en) * | 2014-11-11 | 2015-02-25 | 重庆华世丹机械制造有限公司 | Differential execution mechanism |
| CN108644380A (en) * | 2018-04-12 | 2018-10-12 | 浙江工贸职业技术学院 | A kind of drive rod assembly |
-
2011
- 2011-04-26 CN CN2011201259265U patent/CN202091498U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865362A (en) * | 2012-09-20 | 2013-01-09 | 安徽江淮汽车股份有限公司 | Parking mechanism for automatic transmission |
| CN102865362B (en) * | 2012-09-20 | 2015-05-20 | 安徽江淮汽车股份有限公司 | Parking mechanism for automatic transmission |
| CN103453128A (en) * | 2013-07-31 | 2013-12-18 | 哈尔滨东安汽车发动机制造有限公司 | Six-speed automatic transmission gear shifting and parking mechanism |
| CN103453128B (en) * | 2013-07-31 | 2016-02-03 | 哈尔滨东安汽车发动机制造有限公司 | A kind of six gear transmission gearshift halting mechanisms |
| CN104149612A (en) * | 2014-04-30 | 2014-11-19 | 浙江吉利控股集团有限公司 | Electronic parking mechanism of double-clutch speed changer |
| CN104149612B (en) * | 2014-04-30 | 2016-08-31 | 宁波上中下自动变速器有限公司 | Double-clutch speed changer electronic parking mechanism |
| CN104373546A (en) * | 2014-11-11 | 2015-02-25 | 重庆华世丹机械制造有限公司 | Differential execution mechanism |
| CN108644380A (en) * | 2018-04-12 | 2018-10-12 | 浙江工贸职业技术学院 | A kind of drive rod assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20190426 |