CN102628510A - Secondary box gear-shifting flexible operating cylinder of heavy automobile automated mechanical transmission (AMT) - Google Patents
Secondary box gear-shifting flexible operating cylinder of heavy automobile automated mechanical transmission (AMT) Download PDFInfo
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- CN102628510A CN102628510A CN2012100422574A CN201210042257A CN102628510A CN 102628510 A CN102628510 A CN 102628510A CN 2012100422574 A CN2012100422574 A CN 2012100422574A CN 201210042257 A CN201210042257 A CN 201210042257A CN 102628510 A CN102628510 A CN 102628510A
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Abstract
The invention relates to a secondary box gear-shifting flexible operating cylinder of a heavy automobile automated mechanical transmission (AMT), which solves the problem that the service life is influenced by that a synchronizer is worn at the early stage caused by the hard force characteristic of the conventional heavy automobile transmission secondary box cylinder. The secondary box gear-shifting flexible operating cylinder of the heavy automobile AMT comprises a cylinder body, wherein a piston is arranged in the cylinder body; and a piston rod, which is fixed with the piston and runs through the left end and the right end of the cylinder body, is arranged in the center of the piston. The secondary box gear-shifting flexible operating cylinder of the heavy automobile AMT is characterized in that a left side spring sleeved on the piston rod is arranged between the left end face of the piston and the inner wall of the left side of the cylinder body; and a right side spring sleeved on the piston rod is arranged between the right end face of the piston and the inner wall of the right side of the cylinder body. The secondary box gear-shifting flexible operating cylinder of the heavy automobile AMT has reasonable and reliable structure design, relieves the operating force at the early stage of gear-shifting operation so as to properly prolong the slipping friction time of the synchronizer, control the slipping work within the unit time, reduce the temperature of the friction surface of the synchronizer, improve the work environment of the synchronizer and prolong the life of the synchronizer, and has the advantages of simple structure and low cost.
Description
Technical field
The present invention relates to the odd-side operation cylinder of heavy-duty automotive speed changer, be specially a kind of heavy-duty car AMT secondary box of gearbox gearshift flexible operation cylinder.
Background technique
Along with the development of domestic heavy-duty automotive speed changer, heavy-duty automotive speed changer is the application of adopting segmentations gearshift design and front and back odd-side in actual design more, are that control cylinder is realized the operation of shifting gears and the front and back odd-side generally adopts.But because the hardware features that cylinder is exerted oneself makes synchronizer generation premature wear, the life-span of seriously having reduced synchronizer.Though state internal speed changer production firm and synchronizer supplier carry out a large amount of research and improvement to the friction material of synchronizer, make the existing synchronizer life-span that great lifting arranged, but still do not satisfy the application demand of actual heavy vehicle preferably.
Summary of the invention
The present invention makes synchronizer generation premature wear influence the problem in working life in order to solve the existing heavy-duty automotive speed changer odd-side cylinder hardware features of exerting oneself, and a kind of heavy-duty car AMT secondary box of gearbox flexible operation cylinder of shifting gears is provided.
The present invention adopts following technological scheme to realize: heavy-duty car AMT secondary box of gearbox gearshift flexible operation cylinder; Comprise cylinder block; Be provided with piston in the cylinder block; Centre is provided with the piston rod of fixing and run through the cylinder block right ends with it, it is characterized in that: be provided with the left side spring that is enclosed within on the piston rod between piston left side and the cylinder block inner left wall, be provided with the right side spring that is enclosed within on the piston rod between piston right side and the cylinder block right side inwall.
Cushion power transmission through left side spring and right side spring between piston rod and the piston, realize flexible gearshift; Left side spring and right side spring adopt the pre-pressing force design simultaneously, guarantee that cylinder has higher initial operation power.
During gearshift, when piston was operated to the right, to the inner chamber suction port inflation of cylinder left side, inner pressure of air cylinder was set up, begin to the right to move when reaching synchronizer gear ring location resistance back piston bar, and the contact of the synchronizer conical surface, resistance rises; Cylinder continues inflation, and piston continues to move to right, but because the right side spring is a force transfer element, this moment, piston rod can not lag behind with the shift length reach of piston, thereby realized that the synchronizer conical surface prolongs time of contact, makes synchronously purpose fully; When continuing inflation, resistance is because of fully descending synchronously synchronously, and piston rod moves to right and puts in place, and the process of putting into gear is accomplished.When piston was operated left, principle was the same.
Reasonable in design of the present invention is reliable; Make the steering force at gear shift operation initial stage be able to slow down, with the sliding wear time of appropriateness prolongation synchronizer, the work of slipping in the control unit time; Reduce the temperature of synchronizer rubbing surface; Improve the synchronizer working environment,, have advantage simple in structure, that cost is low to prolong the life-span of synchronizer.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1-cylinder block, 2-piston, 3-piston rod, 4-left side spring, 5-right side spring.
Embodiment
Heavy-duty car AMT secondary box of gearbox gearshift flexible operation cylinder; Comprise cylinder block 1; Be provided with piston 2 in the cylinder block 1; Piston 2 centers are provided with the piston rod 3 of fixing and run through cylinder block 1 right ends with it, are provided with the left side spring 4 that is enclosed within on the piston rod 3 between piston 2 left sides and cylinder block 1 inner left wall, are provided with the right side spring 5 that is enclosed within on the piston rod 3 between piston 2 right sides and the cylinder block 1 right side inwall.
In the practical implementation process; Heavy-duty automotive speed changer odd-side elasticity is carried out the air cylinder structure advantages of simple design; But the relation of stroke-power confirm to have suitable difficulty; Take into full account size, structure, applying working condition, the working life of model machine, exemplar during design, design simultaneously in the time of also will considering its versatility, stability and use carrying out the specific (special) requirements of cylinder., carry out the emulation screening, optimize different design datas through the application of advanced simulation support system, make this heavy-duty automotive speed changer odd-side final controlling element finally design success, satisfy the design origin in significant prolongation synchronizer life-span.
Claims (1)
1. heavy-duty car AMT secondary box of gearbox gearshift flexible operation cylinder; Comprise cylinder block (1); Be provided with piston (2) in the cylinder block (1); Piston (2) center is provided with the piston rod (3) of fixing and run through cylinder block (1) right ends with it; It is characterized in that: be provided with the left side spring (4) that is enclosed within on the piston rod (3) between piston (2) left side and cylinder block (1) inner left wall, be provided with the right side spring (5) that is enclosed within on the piston rod (3) between piston (2) right side and cylinder block (1) the right side inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100422574A CN102628510A (en) | 2012-02-23 | 2012-02-23 | Secondary box gear-shifting flexible operating cylinder of heavy automobile automated mechanical transmission (AMT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100422574A CN102628510A (en) | 2012-02-23 | 2012-02-23 | Secondary box gear-shifting flexible operating cylinder of heavy automobile automated mechanical transmission (AMT) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102628510A true CN102628510A (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100422574A Pending CN102628510A (en) | 2012-02-23 | 2012-02-23 | Secondary box gear-shifting flexible operating cylinder of heavy automobile automated mechanical transmission (AMT) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102628510A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062392A (en) * | 2013-01-16 | 2013-04-24 | 浙江万里扬变速器股份有限公司 | Transmission three-gear air cylinder capable of automatically resetting to neutral gear |
| CN104797840A (en) * | 2012-11-22 | 2015-07-22 | 舍弗勒技术股份两合公司 | Torque transmission device |
| CN105909782A (en) * | 2016-06-17 | 2016-08-31 | 德施普科技发展温州有限公司 | Electro-tricycle transmission |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09207604A (en) * | 1996-02-01 | 1997-08-12 | Mitsubishi Motors Corp | Speed change controller |
| CN2866924Y (en) * | 2005-12-16 | 2007-02-07 | 上海汽车股份有限公司 | Three-positioning pneumatic sleeving cylinder |
| CN201071933Y (en) * | 2007-07-09 | 2008-06-11 | 中国重汽集团济南技术中心有限公司 | Shift choosing mechanism of electric-controlled pneumatic automatic mechanical speed variator system |
| US7730801B2 (en) * | 2004-07-09 | 2010-06-08 | Crf Societa Consortile Per Azioni | Servo-assisted control system for the gears of a single clutch gearbox of a motor vehicle |
| CN202579987U (en) * | 2012-02-23 | 2012-12-05 | 中国重汽集团大同齿轮有限公司 | Flexible operating cylinder for shift of sub-transmission case of heavy truck AMT (automated mechanical transmission) |
-
2012
- 2012-02-23 CN CN2012100422574A patent/CN102628510A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09207604A (en) * | 1996-02-01 | 1997-08-12 | Mitsubishi Motors Corp | Speed change controller |
| US7730801B2 (en) * | 2004-07-09 | 2010-06-08 | Crf Societa Consortile Per Azioni | Servo-assisted control system for the gears of a single clutch gearbox of a motor vehicle |
| CN2866924Y (en) * | 2005-12-16 | 2007-02-07 | 上海汽车股份有限公司 | Three-positioning pneumatic sleeving cylinder |
| CN201071933Y (en) * | 2007-07-09 | 2008-06-11 | 中国重汽集团济南技术中心有限公司 | Shift choosing mechanism of electric-controlled pneumatic automatic mechanical speed variator system |
| CN202579987U (en) * | 2012-02-23 | 2012-12-05 | 中国重汽集团大同齿轮有限公司 | Flexible operating cylinder for shift of sub-transmission case of heavy truck AMT (automated mechanical transmission) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104797840A (en) * | 2012-11-22 | 2015-07-22 | 舍弗勒技术股份两合公司 | Torque transmission device |
| CN103062392A (en) * | 2013-01-16 | 2013-04-24 | 浙江万里扬变速器股份有限公司 | Transmission three-gear air cylinder capable of automatically resetting to neutral gear |
| CN103062392B (en) * | 2013-01-16 | 2015-11-18 | 浙江万里扬变速器股份有限公司 | Speed changer three cylinders of a kind of gear that can automatically make the return trip empty |
| CN105909782A (en) * | 2016-06-17 | 2016-08-31 | 德施普科技发展温州有限公司 | Electro-tricycle transmission |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120808 |