CN202708040U - Gear selecting and shifting mechanism assembly for synchromesh transmission - Google Patents
Gear selecting and shifting mechanism assembly for synchromesh transmission Download PDFInfo
- Publication number
- CN202708040U CN202708040U CN 201220411356 CN201220411356U CN202708040U CN 202708040 U CN202708040 U CN 202708040U CN 201220411356 CN201220411356 CN 201220411356 CN 201220411356 U CN201220411356 U CN 201220411356U CN 202708040 U CN202708040 U CN 202708040U
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- Prior art keywords
- gear
- shift shaft
- shift
- declutch
- shifting
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model provides a gear selecting and shifting mechanism assembly for a synchromesh transmission, which comprises a small cover assembly part and a declutch shift shaft assembly part, wherein the small cover assembly part completes a gear selecting and shifting action, the declutch shift shaft assembly part completes a gear engaging action, the declutch shift shaft assembly part comprises four shift shaft assemblies, i.e., a first-second shift shaft assembly, a third-fourth shift shaft assembly, a fifth-sixth gear shift shaft assembly and a reverse gear shift shaft assembly, a shifting block and a shifting fork are fixedly arranged on each shift shaft assembly, the four shifting blocks are even in distribution position, so that four gear-selecting positions can be formed, a track groove capable of enabling a gear-shift shifting head to move is arranged in the middle of the four gear-selecting positions, the four declutch shift shafts are evenly distributed on the periphery which is 120-140mm far away from the shifting fork center in radius, and the declutch shift shaft is arranged right above the shifting fork center, wherein the uniform distribution angle is 14-18 degrees. When the gears of a main box of the transmission are shift by a synchronizer, the mechanism is clear, reliable, light and stable in the gear selecting and shifting process.
Description
Technical field
The utility model is a kind of synchronizer speed variator gear shift mechanism assembly.
Background technique
The speed changer of two intermediate shaft structures has the advantages such as compact structure, transmitting torque is large, the life-span is long, is widely used in medium and heavy truck.Two intermediate shaft structure speed changer main tank great majority use the gearshift of main shaft sliding sleeve, and this structure gear shifting force is large, gearshift is heavy, to driver requested higher.Newly design the twin countershaft transmission that the full synchronizer of main tank lockpin-type is shifted gears for our company, on the basis of existing gear shift mechanism, do adaptive development, develop new work transmission gearshift assembly.
Summary of the invention
The utility model provides the technological scheme of a kind of synchronizer speed variator with the gear shift mechanism assembly for the deficiencies in the prior art, when the speed changer main tank adopts the synchronizer gearshift, can make the gear selecting shift process clear, reliable, light, steady.
The utility model is realized by following technical measures: a kind of synchronizer speed variator gear shift mechanism assembly, comprise little cap assembly and declutch shift shaft assembly, the tegillum assembly part is finished choosing, the gearshift action, the declutch shift shaft assembly part is finished the action of putting into gear, described declutch shift shaft assembly comprises one or two gears, three or four gears, five or six gear and back fork axle assemblies, totally four declutch shift shaft assemblies, be fixed with shifting block and shift fork on the every declutch shift shaft assembly, described four shifting block distributing positions are even, form four block selecting positions, there is the rail slot that can supply gear shifting pulling head to move the centre, the described four even distribution distance shift fork of declutch shift shaft center radius are on the circumference of 120-140mm, and declutch shift shaft is positioned at directly over the shift fork center, uniform angle is that 14-18 ° of concrete characteristics of the present utility model also have, the inner hole sleeve of above-mentioned shifting block is on declutch shift shaft, and the shifting block side is with aperture, and the field riveting pin is fixedly connected with corresponding declutch shift shaft in the aperture.
The above-mentioned shifting block and five that reverses gear, six gear shifting blocks are same Dimensions.
Shifting block and the shift fork of above-mentioned three or four gear declutch shift shaft assemblies are an overall structure.
Above-mentioned one or two gear shift forks and five or six gear shift forks are same Dimensions.
The fork pin of above-mentioned shift fork is pressed with friction plate.
Be the optimization spatial arrangement and guarantee the strength and stiffness of shift fork in the shift process, the four even distribution distance shift fork of declutch shift shaft center radius are on the circumference of 135mm, and declutch shift shaft is positioned at directly over the shift fork center, and uniform angle is 16 °.
The beneficial effects of the utility model are: for realization four uniform declutch shift shafts can be selected in the zonule of a rule and change operation, ad hoc having counted connects declutch shift shaft and the outside shifting block that carries out the gearshift head of simple shifting operation, the effect of block-dialing structure is that formation is compact, easy, shifting is regional clearly, is convenient to the manipulation to 4 declutch shift shaft assemblies.Along with shifting block axially moves around along declutch shift shaft, but hanging and taking with regard to the realize target gear.Wherein shifting block, declutch shift shaft and shift fork all are fixing by the pin riveted joint, action is moved by declutch shift shaft drive shift fork before and after the shifting block, shift fork promotes the synchronizer slider disc and moves, and finally realizes hanging and taking of the interior gear of main tank, can realize that totally the choosing that choosing is hung and reverses gear of six forward gears is hung.Friction plate is fitted on the shift fork by interference fit, and friction plate material adopts alloy-layer ZCuPb10Sn10 steel backing 10 GB10451, and this material lifetime is long, and wear-resisting and energy shock absorbing can make gearshift steadily, and this structural design also is convenient to assembling and after-sales service.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of declutch shift shaft assembly part in the utility model embodiment.
Fig. 3 is the plan view of declutch shift shaft assembly part in the utility model embodiment.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the plan view of Fig. 3.
Fig. 6 is the structural representation of back fork axle assembly in the utility model embodiment.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the structural representation of one or two gear declutch shift shaft assemblies in the utility model embodiment.
Fig. 9 is the left view of Fig. 8.
Figure 10 is the structural representation of three or four gear declutch shift shaft assemblies in the utility model embodiment.
Figure 11 is the left view of Figure 10.
Figure 12 is the structural representation of five or six gear declutch shift shaft assemblies in the utility model embodiment.
Figure 13 is the left view of Figure 12.
Figure 14 is the block-dialing structure schematic representation of the utility model embodiment one or two gear declutch shift shaft assemblies.
Figure 15 is that the utility model embodiment is reversed gear and the block-dialing structure schematic representation of five or six gear declutch shift shaft assemblies.
Figure 16 is the integrally-built shifting block of three or four gears, the shifting fork structure schematic representation of the utility model embodiment.
Figure 17 is four block selecting position views of the utility model embodiment.
Figure 18 is the friction material configuration schematic representation of the utility model embodiment.
Among the figure, 1. the back fork axle assembly 2. one or two keeps off the declutch shift shaft assemblies, 3. three or four gear declutch shift shaft assemblies 4. five or six keep off declutch shift shaft assembly, 5. gear reverse declutch shift shafts, 6. shifting block, 7. back fork, 8. one or two gear declutch shift shafts reverse gear, 9. one or two keep off shifting blocks, 10. one or two keep off shift forks, 11. 34 gear declutch shift shafts, the shift fork of 12. 34 flap shifting blocks, 13. friction plate, 14. five or six gear shift forks, 15. 56 gear declutch shift shafts, 16. 56 gear shifting blocks, a. five or six gears are put, b. three or four gears are put, and c. one or two gears are put, the d. position of reversing gear, A. tegillum assembly part, B. declutch shift shaft assembly part.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, this programme is set forth.
Such as accompanying drawing, a kind of synchronizer speed variator gear shift mechanism assembly, comprise tegillum assembly part A and declutch shift shaft assembly part B, tegillum assembly part A finishes choosing, the gearshift action, declutch shift shaft assembly part B finishes the action of putting into gear, described declutch shift shaft assembly part B comprises one or two gears, three or four gears, five or six gear and back fork axle assemblies 1,2,3,4, totally four declutch shift shaft assemblies, be fixed with shifting block and shift fork on the every declutch shift shaft assembly, described four shifting block distributing positions are even, form four block selecting positions, there is the rail slot that can supply gear shifting pulling head to move the centre, the described four even distribution distance shift fork of declutch shift shaft center radius are on the circumference of 120-140mm, and declutch shift shaft is positioned at directly over the shift fork center, and uniform angle is 14-18 °; The preferred four even distribution distance shift fork of declutch shift shaft center radius are on the circumference of 135mm, and declutch shift shaft is positioned at directly over the shift fork center, and uniform angle is 16 °.
Wherein, the inner hole sleeve of shifting block is on declutch shift shaft, and the shifting block side is with aperture, and the field riveting pin is fixedly connected with corresponding declutch shift shaft in the aperture.The shifting block 6 and five or six that reverses gear keeps off shifting blocks 16 and is same Dimensions; Shifting block and the shift fork of stating three or four gear declutch shift shaft assemblies 3 are an overall structure, namely consist of the shift fork 12 of three or four flap shifting blocks; One or two gear shift forks 10 and five or six gear shift forks 14 are same Dimensions.The fork pin of shift fork is pressed with friction plate 13.
The utility model can pass through or adopt existing techniques in realizing without the technical characteristics of describing; do not repeat them here; certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (7)
1. synchronizer speed variator gear shift mechanism assembly, comprise tegillum assembly part and declutch shift shaft assembly part, it is characterized in that, the tegillum assembly part is finished choosing, the gearshift action, the declutch shift shaft assembly part is finished the action of putting into gear, described declutch shift shaft assembly part comprises one or two gears, three or four gears, five or six gear and back fork axle assemblies, totally four declutch shift shaft assemblies, be fixed with shifting block and shift fork on the every declutch shift shaft assembly, described four shifting block distributing positions are even, form four block selecting positions, there is the rail slot that can supply gear shifting pulling head to move the centre, the described four even distribution distance shift fork of declutch shift shaft center radius are on the circumference of 120-140mm, and declutch shift shaft is positioned at directly over the shift fork center, and uniform angle is 14-18 °.
2. synchronizer speed variator according to claim 1 gear shift mechanism assembly is characterized in that, the inner hole sleeve of described shifting block is on declutch shift shaft, and the shifting block side is with aperture, and the field riveting pin is fixedly connected with corresponding declutch shift shaft in the aperture.
3. synchronizer speed variator according to claim 1 and 2 gear shift mechanism assembly is characterized in that, it is same Dimensions that the described shifting block and five or six that reverses gear keeps off shifting blocks.
4. synchronizer speed variator according to claim 1 and 2 gear shift mechanism assembly is characterized in that, shifting block and the shift fork of described three or four gear declutch shift shaft assemblies are an overall structure.
5. synchronizer speed variator according to claim 1 and 2 gear shift mechanism assembly is characterized in that, described one or two gear shift forks and five or six gear shift forks are same Dimensions.
6. synchronizer speed variator according to claim 1 and 2 gear shift mechanism assembly is characterized in that, the fork pin of described shift fork is pressed with friction plate.
7. synchronizer speed variator according to claim 1 and 2 gear shift mechanism assembly is characterized in that, the described four even distribution distance shift fork of declutch shift shaft center radius are on the circumference of 135mm, and declutch shift shaft is positioned at directly over the shift fork center, and uniform angle is 16 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411356 CN202708040U (en) | 2012-08-20 | 2012-08-20 | Gear selecting and shifting mechanism assembly for synchromesh transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220411356 CN202708040U (en) | 2012-08-20 | 2012-08-20 | Gear selecting and shifting mechanism assembly for synchromesh transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708040U true CN202708040U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220411356 Expired - Fee Related CN202708040U (en) | 2012-08-20 | 2012-08-20 | Gear selecting and shifting mechanism assembly for synchromesh transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708040U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777595A (en) * | 2012-08-20 | 2012-11-14 | 中国重汽集团济南动力有限公司 | Gear-selecting/shifting mechanism assembly for synchromesh transmission |
| CN104343939A (en) * | 2014-10-17 | 2015-02-11 | 山东蒙沃变速器有限公司 | Transmission for plant protection machinery |
| CN104712756A (en) * | 2015-03-04 | 2015-06-17 | 中国第一汽车股份有限公司 | Transmission shifting mechanism assembly |
| CN107882977A (en) * | 2017-12-01 | 2018-04-06 | 重庆越博传动系统有限公司 | A kind of pure electric automobile six keeps off gearbox shifting shifting fork mechanism |
| CN111677844A (en) * | 2020-06-24 | 2020-09-18 | 陕西法士特汽车传动集团有限责任公司 | Transmission upper cover assembly |
-
2012
- 2012-08-20 CN CN 201220411356 patent/CN202708040U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777595A (en) * | 2012-08-20 | 2012-11-14 | 中国重汽集团济南动力有限公司 | Gear-selecting/shifting mechanism assembly for synchromesh transmission |
| CN104343939A (en) * | 2014-10-17 | 2015-02-11 | 山东蒙沃变速器有限公司 | Transmission for plant protection machinery |
| CN104712756A (en) * | 2015-03-04 | 2015-06-17 | 中国第一汽车股份有限公司 | Transmission shifting mechanism assembly |
| CN107882977A (en) * | 2017-12-01 | 2018-04-06 | 重庆越博传动系统有限公司 | A kind of pure electric automobile six keeps off gearbox shifting shifting fork mechanism |
| CN111677844A (en) * | 2020-06-24 | 2020-09-18 | 陕西法士特汽车传动集团有限责任公司 | Transmission upper cover 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: 20130130 Termination date: 20170820 |