CN202074025U - Parking mechanism of automatic automobile transmission - Google Patents
Parking mechanism of automatic automobile transmission Download PDFInfo
- Publication number
- CN202074025U CN202074025U CN2011201384000U CN201120138400U CN202074025U CN 202074025 U CN202074025 U CN 202074025U CN 2011201384000 U CN2011201384000 U CN 2011201384000U CN 201120138400 U CN201120138400 U CN 201120138400U CN 202074025 U CN202074025 U CN 202074025U
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- China
- Prior art keywords
- parking
- park pawl
- rod assembly
- transmission
- guide sleeve
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a parking mechanism of an automatic automobile transmission, which comprises a parking ratchet wheel fixedly connected with an intermediate shaft of the transmission, a parking pawl, and a gear shifting shaft in a gear shifting mechanism, wherein the parking pawl which is a rod piece is sleeved on a parking pawl pivot; the gear shifting shaft is connected with a parking pull rod assembly; and a guide device which is in guide fit with the parking pull rod assembly is arranged on a transmission shell. The parking mechanism is characterized in that the parking pawl pivot is arranged between the parking pull rod assembly and the parking ratchet wheel; and one side of the parking pawl is meshed with the parking ratchet wheel, and the other side of the parking pawl is connected with the parking pull rod assembly. By adopting the technical scheme, compared with the prior art, the distance between the parking pawl and the parking pull rod assembly is shortened, the complete set of parking mechanism is distributed in the transmission reasonably and compactly, and the space is saved; and a guide sleeve mounting hole which is in clearance fit with a guide sleeve is arranged on the transmission shell, so the assembly of the parking mechanism is simplified and the cost is reduced.
Description
Technical field
The utility model relates to automatic gearbox, and specifically, the utility model relates to a kind of automatic gearbox halting mechanism.
Background technique
At present, automotive transmission halting mechanism in open utilization comprises the Parking ratchet that is fastenedly connected on transmission countershaft, with the park pawl of Parking ratchet engaged and the shift shaft in the gearshift mechanism, this park pawl is a rod member, it is sleeved on the park pawl pivot, also being set with on the park pawl pivot is connected with park pawl makes park pawl throw off the return spring of Parking ratchet, the shift shaft of halting mechanism is connected the driving park pawl by the Parking rod assembly and is meshed with the Parking ratchet with park pawl, and the Parking ratchet is between park pawl pivot and Parking rod assembly, the park pawl pivot causes the Parking rod assembly longer away from the Parking rod assembly; Being provided with many shell spaces between the input shaft of jack shaft and fluid torque converter exists, form the stroke motion zone of Parking rod assembly, the length of Parking rod assembly is longer, it is more to cause a whole set of halting mechanism to occupy the space, unreasonable on the layout, on shift shaft, establish the positioning rail plate that is fastenedly connected with it, when the shift control handle is positioned at P retaining (Parking retaining), realize secure engagement by park pawl being embedded in the Parking ratchet gear teeth, thereby realize pinning the purpose that power train is interrupted power output.And the guide sleeve of Parking rod assembly is to be fastenedly connected by two pins and case of transmission, and the location is complicated, has increased number of spare parts.In sum, currently used traditional halting mechanism takes up room bigger, unreasonable structure, not compact, and manufacture cost is higher, and the installation time of halting mechanism is longer.
The model utility content
Technical problem to be solved in the utility model provides a kind of automatic gearbox halting mechanism, and it is reasonable and compact to its objective is that the halting mechanism of realizing automatic gearbox is arranged, reduces the space that takies speed changer.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of automatic gearbox halting mechanism, comprise the Parking ratchet that is fastenedly connected with transmission countershaft, shift shaft in park pawl and the gearshift mechanism, described park pawl is a rod member, it is sleeved on the park pawl pivot, described shift shaft is connected with the Parking rod assembly, on case of transmission, be provided with the guiding device that cooperates with described Parking rod assembly guiding, it is characterized in that: described park pawl pivot is located between Parking rod assembly and the Parking ratchet, park pawl is in a side and Parking ratchet engaged, and opposite side is connected with the Parking rod assembly.
Described park pawl is sleeved on the park pawl pivot at the position near the end of itself and Parking ratchet engaged, the length direction of park pawl is consistent with the length direction of described Parking rod assembly, park pawl one end and Parking ratchet engaged, the other end is connected with the Parking rod assembly.
If return spring is sleeved on the described park pawl pivot, described return spring is a torsion spring, and the one end is buckled on the park pawl, and the other end is stuck on the case of transmission, and the torsion direction of return spring is the direction of park pawl disengagement and Parking ratchet engaged.
Described guiding device is a guide sleeve, on case of transmission, be provided with install guide sleeve and with guide sleeve be the hole of interference fit.
Described guide sleeve is positioned at the end position of described Parking rod assembly near the Parking ratchet, and guide sleeve is axially arranged with pilot hole along it, and Parking rod assembly end puts in this pilot hole and reciprocatingly slides in this pilot hole.
The utility model adopts technique scheme, the park pawl pivot is located between Parking rod assembly and the Parking ratchet, compared with prior art, shorten the distance between park pawl and the Parking rod assembly, make reasonable and compact that a whole set of halting mechanism arranges in speed changer, shorten the length of Parking rod assembly, reduce the space that takies speed changer, and on case of transmission, be provided with guide sleeve mounting hole with the guide sleeve Spielpassung, do not need to be provided with again pin, reduce amount of parts, simplified the assembling of halting mechanism, reduced cost.
Description of drawings
Fig. 1 is the utility model structural representation;
Mark among the above-mentioned figure is: 1, Parking ratchet; 2, park pawl; 3, park pawl pivot; 4, return spring; 5, guide sleeve; 6, Parking rod assembly; 7, gearshift axle; 8, positioning rail plate; 9, gear location steel disc; 10, park pawl inclined-plane; 11, sub warhead inclined-plane.
Embodiment
As shown in Figure 1, a kind of automatic gearbox halting mechanism of the utility model, comprise the Parking ratchet 1 that is fastenedly connected with transmission countershaft, with the park pawl 2 of Parking ratchet 1 engagement and the shift shaft in the gearshift mechanism.Park pawl 2 is a rod member, and it is sleeved on the park pawl pivot 3 and around its swing.Shift shaft in the gearshift is connected driving park pawl 2 by Parking rod assembly 6 and is meshed with Parking ratchet 1 with park pawl 2, on case of transmission (not drawing among the figure), be provided with the guiding device that cooperates with Parking rod assembly 6 guiding, this guiding device is a guide sleeve 5, also can adopt the guiding device of other structures, as guide rail etc.Adopt guide sleeve 5, on case of transmission, be provided with and guide sleeve 5 be installed and be the hole of interference fit, guide sleeve 5 is fastenedly connected on case of transmission, do not need to be provided with again pin, reduce amount of parts, simplified the assembling of halting mechanism with guide sleeve 5.And guide sleeve 5 is positioned at Parking rod assembly 6 end position near Parking ratchets 1, and it is axially arranged with pilot hole in guide sleeve 5 upper edges, and Parking rod assembly 6 ends put in this pilot hole and reciprocatingly slide in this pilot hole.For making connection and reasonable arrangement, the compactness of this halting mechanism in speed changer, reduce the space that takies speed changer, park pawl pivot 3 is located between Parking rod assembly 6 and the Parking ratchet 1, park pawl 2 is meshed with Parking ratchet 1 in the one side, opposite side is connected with Parking rod assembly 6, the axial direction of park pawl pivot 3 is also perpendicular with the length direction of Parking rod assembly 6, with respect to the layout of park pawl pivot 3 in the prior art, shortened the distance between park pawl 2 and the Parking rod assembly 6.
The arrangement of park pawl 2 is to make its length direction consistent with the length direction of Parking rod assembly 6, and park pawl 2 is sleeved on the park pawl pivot 3 at the position of the end of meshing near itself and Parking ratchet 1, park pawl 2 one ends are meshed with Parking ratchet 1, the other end is connected with Parking rod assembly 6, can make the layout of halting mechanism more reasonable and compact like this, further shorten the length of Parking rod assembly 6, saved the space.
For making the engagement of park pawl 2 quick disengagements and Parking ratchet 1, on park pawl pivot 3, also be set with the return spring 4 that is connected with park pawl 2, this return spring 4 is a torsion spring, the one end is buckled on the park pawl 2, the other end is stuck on the case of transmission, the torsion direction of return spring 4 is that park pawl 2 is thrown off the direction that meshes with Parking ratchet 1, promptly under the cruising state, drive park pawl 2 and be in fully not lock position, and this return spring 4 also compresses by a cover plate (not drawing among the figure), and can limit the axial displacement of park pawl pivot 3.
Parking rod assembly 6 is same as the prior art with the Placement of park pawl 2, and the Placement between gearshift axle 7 and Parking rod assembly 6 and the positioning rail plate 8 is same as the prior art.The rotation of gearshift axle 7 drives positioning rail plate 8 and rotates to the P shelves from the Ds shelves, and the elastic force of gear location steel disc 9 guarantees the tram of each gear.Parking rod assembly 6 is connected on the positioning rail plate 8, along with positioning rail plate 8 from rotating to the P shelves from the Ds shelves, the end sub warhead part of Parking rod assembly 6 is also slowly near park pawl 2.During from the R shelves to the P shelves, sub warhead inclined-plane 11 contacts with park pawl inclined-plane 10, along with contact radius becomes big, because Parking rod assembly 6 gos deep into the part of guide sleeve 5 moving direction of Parking rod assembly 6 is remained unchanged simultaneously, park pawl 2 overcomes the pretightening force of return spring 4 and does counterclockwise motion around park pawl pivot 3, park pawl 2 left side parts of tooth then can partly mesh with the teeth groove of Parking ratchet 1, thereby realize P shelves parking function.
Withdraw from the movement process of P shelves:
Gearshift axle 7 is changed to the R shelves from the P shelves, Parking rod assembly 6 sub warheads parts along guide sleeve 5 away from park pawl 2, this moment, the area of contact of sub warhead part and park pawl 2 reduced, park pawl 2 is under the effect of return spring 4, overcome the gravity of park pawl 2, make park pawl 2 break away from Parking ratchet 1, promptly withdraw from the P shelves.
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 adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or design of the present utility model and technological scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (5)
1. automatic gearbox halting mechanism, comprise the Parking ratchet (1) that is fastenedly connected with transmission countershaft, shift shaft (7) in park pawl (2) and the gearshift mechanism, described park pawl (2) is a rod member, it is sleeved on the park pawl pivot (3), described shift shaft (7) is connected with Parking rod assembly (6), on case of transmission, be provided with the guiding device that cooperates with described Parking rod assembly (6) guiding, it is characterized in that: described park pawl pivot (3) is located between Parking rod assembly (6) and the Parking ratchet (1), park pawl (2) is in a side and Parking ratchet (1) engagement, and opposite side is connected with Parking rod assembly (6).
2. automatic gearbox halting mechanism according to claim 1, it is characterized in that: described park pawl (2) is sleeved on the park pawl pivot (3) at the position of the end of meshing near itself and Parking ratchet (1), the length direction of park pawl (2) is consistent with the length direction of described Parking rod assembly (6), park pawl (2) one ends and Parking ratchet (1) engagement, the other end is connected with Parking rod assembly (6).
3. automatic gearbox halting mechanism according to claim 1 and 2, it is characterized in that: establish return spring (4) and be sleeved on the described park pawl pivot (3), described return spring (4) is a torsion spring, the one end is buckled on the park pawl (2), the other end is stuck on the case of transmission, and the torsion direction of return spring (4) is that park pawl (2) is thrown off the direction that meshes with Parking ratchet (1).
4. automatic gearbox halting mechanism according to claim 3 is characterized in that: described guiding device is guide sleeve (5), is provided with guide sleeve (5) to be installed and to be the hole of interference fit with guide sleeve (5) on case of transmission.
5. automatic gearbox halting mechanism according to claim 4, it is characterized in that: described guide sleeve (5) is positioned at the end position of described Parking rod assembly (6) near Parking ratchet (1), guide sleeve (5) is axially arranged with pilot hole along it, and Parking rod assembly (6) end puts in this pilot hole and reciprocatingly slides in this pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201384000U CN202074025U (en) | 2011-05-05 | 2011-05-05 | Parking mechanism of automatic automobile transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201384000U CN202074025U (en) | 2011-05-05 | 2011-05-05 | Parking mechanism of automatic automobile transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074025U true CN202074025U (en) | 2011-12-14 |
Family
ID=45112128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201384000U Expired - Fee Related CN202074025U (en) | 2011-05-05 | 2011-05-05 | Parking mechanism of automatic automobile transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074025U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196998A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Automobile and automatic gearbox transmission mechanism thereof |
| CN104525825A (en) * | 2014-12-30 | 2015-04-22 | 上海交运汽车动力系统有限公司 | Parking pull rod assembling device and method for online measuring pull rod spring force in assembling process |
| CN105443750A (en) * | 2016-01-13 | 2016-03-30 | 奇瑞汽车股份有限公司 | Automatic transmission parking mechanism for automobile |
-
2011
- 2011-05-05 CN CN2011201384000U patent/CN202074025U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196998A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Automobile and automatic gearbox transmission mechanism thereof |
| CN104525825A (en) * | 2014-12-30 | 2015-04-22 | 上海交运汽车动力系统有限公司 | Parking pull rod assembling device and method for online measuring pull rod spring force in assembling process |
| CN104525825B (en) * | 2014-12-30 | 2016-08-24 | 上海交运汽车动力系统有限公司 | Pull-rod spring power On-line Measuring Method in parking pull bar assembling device and assembling |
| CN105443750A (en) * | 2016-01-13 | 2016-03-30 | 奇瑞汽车股份有限公司 | Automatic transmission parking mechanism for automobile |
| CN105443750B (en) * | 2016-01-13 | 2018-08-14 | 奇瑞控股有限公司 | A kind of automatic parking mechanism of automobile transmission |
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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: 20111214 Termination date: 20140505 |