CN202561021U - Shifting fork and shifting mechanism used for heavy-duty automotive transmission - Google Patents
Shifting fork and shifting mechanism used for heavy-duty automotive transmission Download PDFInfo
- Publication number
- CN202561021U CN202561021U CN2012201431947U CN201220143194U CN202561021U CN 202561021 U CN202561021 U CN 202561021U CN 2012201431947 U CN2012201431947 U CN 2012201431947U CN 201220143194 U CN201220143194 U CN 201220143194U CN 202561021 U CN202561021 U CN 202561021U
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- China
- Prior art keywords
- selector fork
- limit body
- limiting stopper
- gearshift
- limit
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Abstract
The utility model discloses a shifting fork and shifting mechanism used for heavy-duty automotive transmission in the technical field of automotive engineering. The two sides of a connecting part of the shifting fork are respectively provided with a limiting block; and the inner walls of the two limiting blocks are provided with two corresponding clamping blocks matched with a shell of a gear box controller. In case of not changing the original controlling way, the device can be used for solving the problem of increasing a gear-selection force for reversing when the same shifting fork is used by gear 1/gear 6 and reverse gear through such parts like the shifting fork, etc.
Description
Technical field
The utility model relates to the device in a kind of AE field, specifically is a kind of selector fork and gearshift that is used for heavy-duty automotive speed changer.
Background technique
It is on the basis of original 9 shift transmissions that present two middle shaft type heavily blocks 10 shift transmissions; Gear (also can make up with the high retaining of odd-side even L keeps off and reverses gear, form a new forward gear and reverse gear) through discharging two conductively-closeds is realized what gear increased.Its agent structure does not change; Main tank part gearshift still is three declutch shift shaft structures; One/six retaining (former L retaining) 1/ falls 2 retainings (former reversing gear) and uses a declutch shift shaft jointly with falling, and two/seven retainings (former one/five retaining) use a declutch shift shaft jointly with three/eight retainings (former two/six retainings), and four/nine retainings (former three/seven retainings) and five/ten keep off (former four/eight keep off) and use a declutch shift shaft jointly; The block selecting power of other gear of block selecting force rate that wherein also requires to reverse gear is big, promptly need increase the limit stoper that reverses gear.But one/six retaining and common the use under the declutch shift shaft situation of reversing gear, increase the inevitable block selecting power that also can increase by one/six retaining of the block selecting power of reversing gear, this will bring great inconvenience to driver's use habit.
Retrieval through to existing technology is found; Chinese patent document number CN101349344; Open day 2009-01-21; Put down in writing a kind of " gearshift that is used for heavy-duty automotive speed changer ", this technology comprises: selector fork, first limit body, second limit body and the 3rd limit body, and wherein: first limit body, second limit body and the 3rd limit body are arranged in parallel in same horizontal plane successively and closely contact; Selector fork is located at above-mentioned three limit bodies top and is contacted with three limit bodies, by independent respectively each limit body of control of selector fork side-to-side movement.This technology has solved the derive problem of five block selecting positions of three declutch shift shafts through two fork pin selector forks and guide block structure, but the two pin shift fork manufacturing procedures of stirring that should technology adopt are comparatively complicated.
The model utility content
The above-mentioned deficiency that the utility model exists to existing technology; A kind of selector fork and gearshift that is used for heavy-duty automotive speed changer is provided; According to existing gearshift; Under the prerequisite that does not change original maneuverability pattern,, solved the problem that needs to increase the block selecting power of reversing gear under one/six retaining and the situation of using same shift fork of reversing gear through parts such as selector forks.
The utility model is realized through following technological scheme:
The utility model relates to a kind of selector fork that is used for heavy-duty automotive speed changer, and the joint both sides correspondence of this selector fork respectively is provided with a limiting stopper, and the inwall of two the corresponding gearbox manipulator of limiting stopper housings is provided with two corresponding fixture blocks.
Described selector fork comprises: joint, group pin and shifting block, and wherein: the end of dialling pin is vertical at the outer surface of joint, and joint is movably set on the gearshift axle.
Described joint is the open tubular column structure;
The length of described first limiting stopper is the 1/3-3/4 of the second limiting stopper length, is preferably 2/3.
Described second limiting stopper is provided with locating slot, and the inboard of this locating slot is a circular shape.
Described fixture block is the cuboid structure.
The utility model relates to the above-mentioned gearshift that is used for the selector fork of heavy-duty automotive speed changer; Comprise: selector fork and three corresponding limit bodies; Wherein: first limit body, second limit body and the 3rd limit body are arranged in parallel in same horizontal plane successively and closely contact; Selector fork is positioned at three limit body tops and is movably set in the gearshift axle and upward also contacts with three limit bodies successively, through independent respectively each limit body of control of selector fork side-to-side movement.
Described limit body includes: be used to connect gearbox the belled part and with the contacted drive portion of selector fork, wherein: be equipped with a pair of guide mechanism on the drive portion of each limit body, be provided with the augmentor that reverses gear in the drive portion of first limit body.
The described augmentor that reverses gear comprises: link to each other successively and be arranged at first limit body inner stop plunger, pressure spring and plug screw, wherein: stop plunger is the ladder round column structure, and the top of plug screw contacts with the shifting block of shift fork.
Take the design of similar pair of shifting block on the basis of the utility model through the shifting block that reverses gear at original L/; Solved the derive problem of four block selecting positions of three declutch shift shafts; Having solved simultaneously under one/six retaining and the situation of using same shift fork of reversing gear needs to increase the problem of block selecting power of reversing gear, and makes shift of transmission clear, has avoided the generation of random retaining phenomenon; Improved the gearshift performance of heavy-duty automotive speed changer; Make shift of transmission clear, avoided the generation of random retaining phenomenon, improved the gearshift performance of heavy-duty automotive speed changer.
Description of drawings
Fig. 1 is the utility model selector fork schematic perspective view;
Fig. 2 is the utility model gearshift schematic perspective view;
Fig. 3 is the utility model first limit body schematic representation;
Fig. 4 is the utility model second limit body schematic representation;
Fig. 5 is the utility model the 3rd limit body schematic representation;
Fig. 6 is the utility model gearshift side view;
Fig. 7 is each gear shift fork position view of embodiment.
Embodiment
Embodiment in the face of the utility model elaborates down; Present embodiment is being to implement under the prerequisite with the utility model technological scheme; Provided detailed mode of execution and concrete operating process, but the protection domain of the utility model is not limited to following embodiment.
Embodiment 1
As depicted in figs. 1 and 2; Present embodiment relates to the selector fork 1 that is used for heavy-duty automotive speed changer; The joint 2 both sides correspondences of this selector fork 1 respectively are provided with a limiting stopper, and the inwall of the corresponding gearbox manipulator of the first limiting stopper 3a and second limiting stopper 3b housing is provided with two corresponding fixture blocks 4.
Described selector fork 1 comprises: joint 2, group pin 5 and shifting block 6, and wherein: the end of dialling pin 5 is vertical at the outer surface of joint 2, and joint 2 is movably set on the gearshift axle.
Described joint 2 is the open tubular column structure.
The described second limiting stopper 3b is provided with locating slot 7, and the inboard of this locating slot 7 is a circular shape.
The length of the described first limiting stopper 3a is the 1/3-3/4 of the second limiting stopper 3b length, preferred 2/3.
Described fixture block 4 is the cuboid structure.
As shown in Figure 2; Present embodiment relates to a kind of gearshift that is used for heavy-duty automotive speed changer; Comprise: like above-mentioned selector fork 1 and corresponding three limit bodies 8,9,10; Wherein: first limit body 8, second limit body 9 and the 3rd limit body 10 are arranged in parallel in same horizontal plane successively and closely contact; Selector fork 1 is positioned at three limit body tops and is movably set in the gearshift axle and upward also contacts with three limit bodies successively, through independent respectively each limit body of control of selector fork 1 side-to-side movement.
Like Fig. 3-shown in Figure 5; Described limit body includes: be used to connect gearbox belled part 11 and with selector fork 1 contacted drive portion 12; Wherein: be equipped with on the drive portion 12 of each limit body in the drive portion 12 of a pair of guide mechanism 13, the first limit bodies 8 and be provided with the augmentor 14 that reverses gear.
As shown in Figure 6; The described augmentor 14 that reverses gear comprises: link to each other successively and be arranged at first limit body 8 inner stop plunger 15, pressure spring 16 and plug screw 17; Wherein: stop plunger 15 is the ladder round column structure, and the top of plug screw 17 contacts with the shifting block of shift fork 6.
Described guide mechanism 13 is specially three couples of guide pad 13a, 13b and 13c that are arranged at respectively on three limit bodies; Those skilled in the art can realize the switching of different gears through different Aspect Ratio of three groups of guide pads of concrete setting; Specifically as shown in Figure 7; Be the schematic representation of the concrete working state of present embodiment, complete gearshift state table is following:
Claims (10)
1. selector fork that is used for heavy-duty automotive speed changer; It is characterized in that; The joint both sides correspondence of this selector fork respectively is provided with a limiting stopper, and the inwall of first limiting stopper and the corresponding respectively gearbox manipulator of second limiting stopper housing is provided with two corresponding fixture blocks.
2. selector fork according to claim 1 is characterized in that, described selector fork comprises: joint, group pin and shifting block, and wherein: the end of dialling pin is vertical at the outer surface of joint, and joint is movably set on the gearshift axle.
3. selector fork according to claim 1 is characterized in that, described second limiting stopper is provided with locating slot, and the inboard of this locating slot is a circular shape.
4. selector fork according to claim 1 is characterized in that, the length of described first limiting stopper is the 1/3-3/4 of the second limiting stopper length.
5. according to claim 1 or 4 described selector forks, it is characterized in that the length of described first limiting stopper is 2/3 of the second limiting stopper length.
6. selector fork according to claim 1 is characterized in that, described fixture block is the cuboid structure.
7. gearshift that is used for heavy-duty automotive speed changer; It is characterized in that; Comprise: like the described selector fork of above-mentioned arbitrary claim and three corresponding limit bodies; Wherein: first limit body, second limit body and the 3rd limit body are arranged in parallel in same horizontal plane successively and also closely contact, and selector fork is positioned at three limit bodies tops and is movably set in the gearshift axle and upward also contacts with three limit bodies successively, through independent respectively each limit body of control of selector fork side-to-side movement.
8. gearshift according to claim 7; It is characterized in that; Described limit body includes: be used to connect gearbox the belled part and with the contacted drive portion of selector fork; Wherein: be equipped with a pair of guide mechanism on the drive portion of each limit body, be provided with the augmentor that reverses gear in the drive portion of first limit body.
9. gearshift according to claim 8; It is characterized in that; The described augmentor that reverses gear comprises: link to each other successively and be arranged at first limit body inner stop plunger, pressure spring and plug screw, wherein: stop plunger is the ladder round column structure, and the top of plug screw contacts with the shifting block of shift fork.
10. gearshift according to claim 8 is characterized in that, described guide mechanism is three pairs of guide pads that are arranged at respectively on three limit bodies, and three groups of guide pads have different Aspect Ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201431947U CN202561021U (en) | 2012-04-06 | 2012-04-06 | Shifting fork and shifting mechanism used for heavy-duty automotive transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201431947U CN202561021U (en) | 2012-04-06 | 2012-04-06 | Shifting fork and shifting mechanism used for heavy-duty automotive transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561021U true CN202561021U (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201431947U Expired - Fee Related CN202561021U (en) | 2012-04-06 | 2012-04-06 | Shifting fork and shifting mechanism used for heavy-duty automotive transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202561021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273345A (en) * | 2013-05-16 | 2013-09-04 | 重庆和剑机械制造有限公司 | Shift gear oscillating bar W face turning machining fixture |
| CN105276155A (en) * | 2014-05-30 | 2016-01-27 | 广州汽车集团股份有限公司 | Gearshift mechanism |
-
2012
- 2012-04-06 CN CN2012201431947U patent/CN202561021U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273345A (en) * | 2013-05-16 | 2013-09-04 | 重庆和剑机械制造有限公司 | Shift gear oscillating bar W face turning machining fixture |
| CN103273345B (en) * | 2013-05-16 | 2015-10-21 | 重庆和剑机械制造有限公司 | Gearshift fork W face workpiece machining clamp |
| CN105276155A (en) * | 2014-05-30 | 2016-01-27 | 广州汽车集团股份有限公司 | Gearshift mechanism |
| CN105276155B (en) * | 2014-05-30 | 2018-09-28 | 广州汽车集团股份有限公司 | A kind of gearshift |
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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 |
Granted publication date: 20121128 Termination date: 20190406 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |