CN102537310A - Electric servo gear-shifting actuator for AMT (automated mechanical transmission) of heavy truck - Google Patents
Electric servo gear-shifting actuator for AMT (automated mechanical transmission) of heavy truck Download PDFInfo
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- CN102537310A CN102537310A CN201210042182XA CN201210042182A CN102537310A CN 102537310 A CN102537310 A CN 102537310A CN 201210042182X A CN201210042182X A CN 201210042182XA CN 201210042182 A CN201210042182 A CN 201210042182A CN 102537310 A CN102537310 A CN 102537310A
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- gear
- planetary
- shifting
- amt
- electric servo
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Abstract
The invention particularly relates to an electric servo gear-shifting actuator for an AMT (automated mechanical transmission) of a heavy truck, which solves the problems of large response and difficulty in controlling gear-shifting force of an existing gear-shifting actuator using a cylinder or a hydraulic cylinder. The electric servo gear-shifting actuator for the AMT of the heavy truck comprises an operating lead screw and a gear-shifting shell which are in threaded connection with a gear-shifting rocker, a servo motor and a planetary mechanism are arranged in the gear-shifting shell, the planetary mechanism comprises a planetary gear ring and a planetary support fixed to the outer end of the planetary gear ring, a sun gear is arranged at the center of the planetary gear ring, planetary gears engaged with the sun gear and the planetary gear ring are arranged on the periphery of the sung ear, an output shaft of the servo motor is connected with an input shaft of the planetary mechanism, and a torque sensor connected with the planetary support and the operating lead screw is arranged between the planetary support and the operating lead screw. The electric servo gear-shifting actuator is reasonable and reliable in structural design, and has the advantages of short action response time, high repeated positioning precision, small size of parts, light weight and easiness in manufacture.
Description
Technical field
The present invention relates to the heavy-duty automotive speed changer gearshift, be specially a kind of heavy-duty car AMT speed changer electrical servo gear shifting operator.
Background technique
Development along with domestic heavy-duty automotive speed changer; Heavy-duty car AMT speed changer is in actual design; Need a kind of gear shifting operator of a kind of high responsiveness, high reliability, long service life, produce the high usage requirement of the gear shift frequency because of gear many (design of 10 gears to 16 gears arranged usually) to satisfy heavy-duty car AMT speed changer.The current operation medium form structures pneumatic, that surge that adopt of heavy-duty car AMT speed changer more; Gear-change operation generally adopts cylinder or oil hydraulic cylinder as final controlling element; But cylinder or hydraulically operated characteristic can be seriously with the responsiveness that reduces gear-change operation, and in gearshift procedure, have the shortcoming of wayward berth-changing strength.
Summary of the invention
The present invention adopts cylinder or oil hydraulic cylinder to have the problem of the bigger and wayward berth-changing strength of responsiveness in order to solve existing gear shifting operator, and a kind of heavy-duty car AMT speed changer electrical servo gear shifting operator is provided.
The present invention adopts following technological scheme to realize: heavy-duty car AMT speed changer electrical servo gear shifting operator; Comprise the manipulation screw mandrel and the gear shift shell that are threaded with gear shifting rocking arm; Be provided with actuating motor and planetary mechanism in the gear shift shell; Planetary mechanism comprises planetary ring gear and is fixed on the planet stent of planetary ring gear outer end that the planetary ring gear center is provided with sun gear, is provided with the planet wheel with sun gear and planetary ring gear engagement around the sun gear; The output shaft of actuating motor is connected with the input shaft of planetary mechanism, and planet stent is provided with the torque sensor that connects with both with handling between the screw mandrel.
The moment of torsion of real-time observing and controlling final controlling element in the gearshift procedure with the control berth-changing strength, satisfies the protection to the synchronizer shift shifter collar in the speed changer main tank, has greatly prolonged the working life of AMT speed changer.
Detailed process is following: the actuating motor rotation, drive the rotation of manipulation screw mandrel through planetary mechanism deceleration back, thereby drive screw and gear shifting rocking arm rotation are accomplished gear shift and are moved; When the actuating motor counter-rotating, drive screw and gear shifting rocking arm counterrotating, accomplish reverse gear shift action.
Reasonable in design of the present invention is reliable; Adopt torque sensor to monitor gear shift moment in real time; When improving responsiveness, satisfied the usage requirement in reliability and life-span; To the protection of the synchronizer shift shifter collar in the speed changer main tank, greatly prolonged the working life of AMT speed changer, have the action response deadline short, repetitive positioning accuracy is high, the parts size is little, in light weight and the advantage that is easy to make.
Description of drawings
Fig. 1 is this bright structural representation.
Among the figure: 1-handles screw mandrel, 2-gear shift shell, 3-actuating motor, 4-planetary ring gear, 5-planet stent, 6-sun gear, 7-planet wheel, 8-torque sensor.
Embodiment
Heavy-duty car AMT speed changer electrical servo gear shifting operator; Comprise the manipulation screw mandrel 1 and the gear shift shell 2 that are threaded with gear shifting rocking arm; Be provided with actuating motor 3 and planetary mechanism in the gear shift shell 2; Planetary mechanism comprises planetary ring gear 4 and is fixed on the planet stent 5 of planetary ring gear 4 outer ends that planetary ring gear 4 centers are provided with sun gear 6, are provided with around the sun gear 6 and the planet wheel 7 of sun gear 6 with planetary ring gear 4 engagements; The output shaft of actuating motor 3 is connected with the input shaft of planetary mechanism, and planet stent 5 is provided with the torque sensor 8 that connects with both with handling between the screw mandrel 1.
In the practical implementation process, to different design datas, carry out the emulation screening, optimize through the application of advanced simulation support system.
Claims (1)
1. heavy-duty car AMT speed changer electrical servo gear shifting operator; It is characterized in that: comprise the manipulation screw mandrel (1) and the gear shift shell (2) that are threaded with gear shifting rocking arm; Be provided with actuating motor (3) and planetary mechanism in the gear shift shell (2); Planetary mechanism comprises planetary ring gear (4) and is fixed on the planet stent (5) of planetary ring gear (4) outer end; Planetary ring gear (4) center is provided with sun gear (6); Be provided with the planet wheel (7) with the engagement of sun gear (6) and planetary ring gear (4) around the sun gear (6), the output shaft of actuating motor (3) is connected with the input shaft of planetary mechanism, is provided with the torque sensor (8) that connects with both between planet stent (5) and the manipulation screw mandrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042182.XA CN102537310B (en) | 2012-02-23 | 2012-02-23 | Heavy-duty car AMT speed changer electrical servo gear shifting operator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042182.XA CN102537310B (en) | 2012-02-23 | 2012-02-23 | Heavy-duty car AMT speed changer electrical servo gear shifting operator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537310A true CN102537310A (en) | 2012-07-04 |
| CN102537310B CN102537310B (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210042182.XA Active CN102537310B (en) | 2012-02-23 | 2012-02-23 | Heavy-duty car AMT speed changer electrical servo gear shifting operator |
Country Status (1)
| Country | Link |
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| CN (1) | CN102537310B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329455A (en) * | 2014-11-11 | 2015-02-04 | 合肥工业大学 | Motor-driven planetary gear train gear shifting mechanism |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988004741A1 (en) * | 1986-12-23 | 1988-06-30 | Allied Corporation | Electrically operated disc brake |
| CN2475607Y (en) * | 2001-01-17 | 2002-02-06 | 武文治 | Actuation mechanism for vehicle electric-controlled auto-speed variator |
| CN1603060A (en) * | 2004-11-02 | 2005-04-06 | 合肥工业大学 | Screwing machine based on servo system |
| CN201041210Y (en) * | 2007-06-08 | 2008-03-26 | 江苏大学 | Vehicular electronic machine brake device |
| CN101210858A (en) * | 2006-12-28 | 2008-07-02 | 比亚迪股份有限公司 | Shift drive system for speed-changer synchronizer jack horse test bed |
| CN201212535Y (en) * | 2008-07-08 | 2009-03-25 | 吉林大学 | Electronic and mechanical braking executor for automobile |
| CN101456355A (en) * | 2007-12-15 | 2009-06-17 | 现代自动车株式会社 | Deceleration device for vehicle, electronic parking brake and electronic motor brake using reduction device |
| CN201836307U (en) * | 2010-10-29 | 2011-05-18 | 天津市津达执行器有限公司 | Planetary reducer for high-torque electric actuating mechanism |
| CN202451812U (en) * | 2012-02-23 | 2012-09-26 | 中国重汽集团大同齿轮有限公司 | Electric servo gear shift executer of automated mechanical transmission (AMT) of heavy truck |
-
2012
- 2012-02-23 CN CN201210042182.XA patent/CN102537310B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988004741A1 (en) * | 1986-12-23 | 1988-06-30 | Allied Corporation | Electrically operated disc brake |
| CN2475607Y (en) * | 2001-01-17 | 2002-02-06 | 武文治 | Actuation mechanism for vehicle electric-controlled auto-speed variator |
| CN1603060A (en) * | 2004-11-02 | 2005-04-06 | 合肥工业大学 | Screwing machine based on servo system |
| CN101210858A (en) * | 2006-12-28 | 2008-07-02 | 比亚迪股份有限公司 | Shift drive system for speed-changer synchronizer jack horse test bed |
| CN201041210Y (en) * | 2007-06-08 | 2008-03-26 | 江苏大学 | Vehicular electronic machine brake device |
| CN101456355A (en) * | 2007-12-15 | 2009-06-17 | 现代自动车株式会社 | Deceleration device for vehicle, electronic parking brake and electronic motor brake using reduction device |
| CN201212535Y (en) * | 2008-07-08 | 2009-03-25 | 吉林大学 | Electronic and mechanical braking executor for automobile |
| CN201836307U (en) * | 2010-10-29 | 2011-05-18 | 天津市津达执行器有限公司 | Planetary reducer for high-torque electric actuating mechanism |
| CN202451812U (en) * | 2012-02-23 | 2012-09-26 | 中国重汽集团大同齿轮有限公司 | Electric servo gear shift executer of automated mechanical transmission (AMT) of heavy truck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329455A (en) * | 2014-11-11 | 2015-02-04 | 合肥工业大学 | Motor-driven planetary gear train gear shifting mechanism |
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| Publication number | Publication date |
|---|---|
| CN102537310B (en) | 2016-04-06 |
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