CN101245850A - Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle - Google Patents
Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle Download PDFInfo
- Publication number
- CN101245850A CN101245850A CNA2008100694854A CN200810069485A CN101245850A CN 101245850 A CN101245850 A CN 101245850A CN A2008100694854 A CNA2008100694854 A CN A2008100694854A CN 200810069485 A CN200810069485 A CN 200810069485A CN 101245850 A CN101245850 A CN 101245850A
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- Prior art keywords
- piston rod
- gear
- oil
- gear shifting
- cylinder body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
Abstract
The invention provides a heavy vehicle machine automatic speed changing direct gear shifting hydraulic execution mechanism, comprising a valve body (1), an electromagnetic change valve (2), a cylinder body (3), a cover plate (4), a sensor (6), a permanent magnet (7), an advancing gear piston rod (8), a sliding sleeve (9), an elastic pin (11), a gear shifting pulling finger (12), an oil returning pipe (14), an oil inlet pipe (15), a spring (16) and a backing gear piston rod (17). The cylinder body (3) is provided with a piston hole so as to form 4 parallel hydraulic cylinders; 4 gear shifting pulling forks (19) are respectively pushed by the gear shifting pulling finger (12) which is fixed on the piston rod so as to accomplish the gear shifting action. The execution mechanism is directly arranged on a transmission cover, replaces the original manual gear shifting operation mechanism, realizes the direct gear shifting without gear selection process, shortens gear shifting process time, reduces the power loss in the vehicle gear shifting process, improves power performance and the economy of fuel oil, and is suitable for the requirement of the automatic gear shifting of a heavy vehicle multi-gear transmission.
Description
Technical field
The present invention relates to automobile automatic gear control, be specifically related to the direct gear shifting hydraulic actuator that a kind of heavy vehicle mechanical automatic speed-changing system does not have the gear selecting process.
Background technique
Heavy vehicle generally adopts the armstrong's patent speed changer, because Transmission gear is many, shift control power is big, need gas pedal, clutch pedal and the action of gear shifting handle cooperation during gear shift, to driving operation technical requirements height, make driver's operation intensity big, fatiguability brings certain influence to travel safety simultaneously.To have the hand gear vehicle now and transform, and make it become electric-controlled mechanical automatic speed changing vehicle, will reduce the driving technology difficulty, alleviate driving operation intensity greatly, can improve vehicle performance and technical merit simultaneously.Electric-controlled mechanical automatic speed changing is on the basis of former armstrong's patent speed changer and dry friction clutch, the cancellation clutch pedal, increase is by the actuator of ECU (Electrical Control Unit) control, realize the automatic control of shifting of transmission, clutch separation combination and engine speed, has the transmission efficiency height, simple in structure, advantage of low manufacturing cost.Electric-controlled mechanical self-shifting gear-shifting actuating mechanism has hydraulic pressure, pneumatic and electronic three kinds of driving mode, and wherein to have a volume little for hydraulic actuator, and speed of response is fast, and characteristics such as stable performance are used wider on heavy vehicle.Electric-controlled mechanical self-shifting gearshift mechanism adopts gear selecting and gear shift two cover mechanisms to realize gear-change operation mostly at present, change to another shelves from shelves and generally need finish shelves, gear selecting, three processes of engage a gear of moving back in proper order, cause the gearshift procedure time longer, and the power interruption of long period has caused the reduction of vehicle power.
Summary of the invention
The objective of the invention is to propose a kind of mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle, this actuator can be directly installed on the gear shift cover, replace former hand shift operating device, realize the direct gear shift of no gear selecting process, shorten the gearshift procedure time, reduce the power loss of gearshift procedure for vehicles, improve power character and fuel economy, be applicable to many gears of heavy vehicle speed changer self shifter needs.
Technological scheme of the present invention is: a kind of mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle comprises that valve body, solenoid directional control valve, cylinder body, oil inlet pipe, return tube, cover plate, sensor, permanent magnet, forward gears piston rod, sliding sleeve, resilient key, reverse gear piston rod, gear shift are dialled to refer to and spring.7 plug-in type two-position three way solenoid directional control valves are installed on the valve body, oil input channel, back oil road and work oil duct are arranged on the valve body, wherein oil input channel and back oil road are communicated with the filler opening and the return opening of 7 solenoid directional control valves respectively, are connected with the hydraulic power device by oil pipe.Valve body on cylinder body, and communicates the oil duct of oil hydraulic cylinder on the work oil duct of solenoid valve on the valve body and the cylinder body by screw.Be processed with 4 structures and measure-alike piston hole on the cylinder body, the identical forward gears piston rod of 3 root architectures and 1 reverse gear piston rod are housed in the hole, constitute 4 oil hydraulic cylinders that are arranged in parallel.Sliding sleeve is equipped with at 3 forward gears piston rod two ends respectively, and the piston hole on sliding sleeve outer surface and the cylinder body is for being slidingly matched, and sliding sleeve endoporus and piston rod have seal ring for being slidingly matched on the piston hole, be used for the sealing between piston rod and the piston hole.Forward gears piston rod and reverse gear piston rod middle part is equipped with gear shift and is dialled finger, and gear shift is dialled finger and fixedly is assemblied on the piston rod by resilient key, and insert in the reverse shift fork groove of correspondence the end that finger is dialled in 4 gear shift.Forward gears piston rod both ends of the surface and reverse gear piston rod right side are fixed with permanent magnet, and the cylinder body both ends of the surface are equipped with cover plate, and gear position sensor is installed on the cover plate.Reverse gear piston rod right-hand member is equipped with spring, and this actuator is installed on the gear shift cover by the hole on the cylinder body.
Pressure oil oil inlet pipe from the hydraulic power device enters valve body, arrives the filler opening of 7 two-position three way solenoid directional control valves by the oil duct on the valve body.Through after the two-position three way solenoid directional control valve control respectively the oil duct by each oil hydraulic cylinder on oil duct and the cylinder body link to each other.Two-position three way magnetic valve is a Normally closed type, when the left solenoid valve of every oil hydraulic cylinder of control is switched on the outage of right solenoid valve, the left chamber oil-feed of this oil hydraulic cylinder, right chamber oil return, pressure oil promotes the forward gears piston rod and right sliding sleeve moves right, the gear shift that is connected as a single entity with the forward gears piston rod is dialled and is referred to drive reverse shift fork and move, in forward gears piston rod moving process, be fixed on the distance change of permanent magnet with the fixing Hall linear displacement gear position sensor on the cover board of piston rod end, can detect the displacement amount of piston rod and reverse shift fork in real time by sensor, put in place behind the signal when detecting gear shift, ECU (Electrical Control Unit) makes left solenoid valve outage, piston rod remains on this position under the effect of shifting of transmission lockable mechanism, finish into shelves action.When left and right sides solenoid valve is switched on simultaneously, oil hydraulic cylinder constitutes differential Placement, the active area in right chamber adds the piston rod useful area for the sliding sleeve useful area, the active area in chamber, a left side only is the piston rod useful area,, drive reverse shift fork and pluck shelves to left movement at the effect lower piston rod of differential hydraulic power and the right sliding sleeve, the active force that arrives the back piston bar left and right sides, neutral position equates, the piston rod stop motion, speed changer is got back to neutral gear.When right solenoid valve energising, when left solenoid valve cuts off the power supply, the right chamber oil-feed of oil hydraulic cylinder, the oil return of left chamber promotes piston rod and left side sliding sleeve to left movement, finishes gearshift procedure.The reverse gear oil hydraulic cylinder is a spring reset formula single-acting cylinder, when solenoid valve is switched on, and the left side chamber oil-feed of reverse gear oil hydraulic cylinder, promotion reverse gear piston rod overcomes spring force and moves right, and gear shift is dialled and is referred to that promotion reverse gear reverse shift fork changes to reverse gear.When solenoid valve cuts off the power supply, the left side chamber oil return of reverse gear oil hydraulic cylinder, the reverse gear piston rod moves to left under spring action, and speed changer withdraws from reverse gear and enters neutral gear.This gearshift can be directly installed on the gear shift cover, replaces former manual shifting mechanism, arrangement convenience.Owing to adopt the direct gear changing mode of no gear selecting process, can shorten the time of gearshift procedure, improve the vehicle accelerating ability energy.Owing to adopt the linear Hall displacement transducer to detect the gear shift stroke in real time, can guarantee the accuracy of gear shift control simultaneously, also can regulate the control that realizes the gearshift procedure berth-changing strength by hydraulic coupling.Under the ECU (Electrical Control Unit) effect, can satisfy many gears of heavy vehicle speed changer automaitc shfit demand.
Description of drawings
Fig. 1 is a plan view of the present invention.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the A-A sectional drawing of Fig. 2
Fig. 4 is the valve body sectional view
Fig. 5 dials the structural drawing of finger for gear shift
Among the figure: 1-valve body 2-solenoid directional control valve 3-cylinder body 4-cover plate 5-screw 6-sensor 7-permanent magnet 8-forward gears piston rod 9-sliding sleeve 10-seal ring 11-resilient key 12-gear shift is dialled and is referred to 13-screw 14-return tube 15-oil inlet pipe 16-spring 17-reverse gear piston rod 18-gear shift cover 19-reverse shift fork a-back oil road b-oil input channel c-work oil duct
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
A kind of mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle, comprise valve body 1, solenoid directional control valve 2, cylinder body 3, cover plate 4, sensor 6, permanent magnet 7, forward gears piston rod 8, sliding sleeve 9, resilient key 11, gear shift dial refer to 12, return tube 14, oil inlet pipe 15, spring 16 and reverse gear piston rod 17.7 plug-in type two-position three way solenoid directional control valves 2 are installed on the valve body 1, oil input channel, back oil road and work oil duct are arranged on the valve body 1, wherein oil input channel and back oil road are communicated with the filler opening and the return opening of 7 solenoid directional control valves 2 respectively, and are connected with the hydraulic power device with return tube 14 by oil inlet pipe 15.Valve body 1 is fixed on the cylinder body 3 by screw 13, and the oil duct of oil hydraulic cylinder on the work oil duct that is communicated with the actuator port of solenoid valve 2 and the cylinder body 3 is communicated.Be processed with 4 structures and measure-alike piston hole on the cylinder body 3, the identical forward gears piston rod 8 of 3 root architectures and 1 reverse gear piston rod 17 are housed in the hole, constitute 4 oil hydraulic cylinders that are arranged in parallel.Sliding sleeve 9 is equipped with at 3 forward gears piston rod 8 two ends respectively, piston hole on sliding sleeve 9 outer surfaces and the cylinder body 3 is for being slidingly matched, sliding sleeve 9 endoporus and forward gears piston rod 8 are for being slidingly matched, be useful on the seal ring 10 that seals between piston rod and the piston hole on the piston hole, forward gears piston rod 8 and reverse gear piston rod 17 middle parts are equipped with gear shift and are dialled and refer to 12, gear shift is dialled and is referred to that 12 fixedly are assemblied on the piston rod by resilient key 11, and gear shift is dialled in the groove that refers to 12 end insertion reverse shift fork 19.Forward gears piston rod 8 both ends of the surface and reverse gear piston rod 17 right sides are fixed with permanent magnet 7, cylinder body 3 both ends of the surface are equipped with cover plate 4, sensor 6 is installed on the cover plate 4, and reverse gear piston rod 17 right-hand members are equipped with spring 16, and this actuator is installed on the gear shift cover 18 by the hole on the cylinder body 3.
Pressure oil from the hydraulic power device enters valve body 1 through oil inlet pipe 15, arrives the filler opening of 7 two-position three way solenoid directional control valves 2 by the oil duct on the valve body 1.Two-position three way magnetic valve 2 is a Normally closed type, every forward gears oil hydraulic cylinder by about two solenoid valves 2 controls, when left side solenoid valve is switched on the outage of right solenoid valve, the left chamber oil-feed of this oil hydraulic cylinder, right chamber oil return, pressure oil promotes forward gears piston rod 8 and the right sliding sleeve 9 moves right, the gear shift that is connected as a single entity with forward gears piston rod 8 is dialled and is referred to that 12 drive reverse shift forks 19 and move, in the piston rod moving process, the distance that is fixed on the permanent magnet 7 of piston rod end and is fixed between the Hall Linear displacement transducer 8 on the end cap changes, can detect the displacement amount of piston rod and reverse shift fork 19 in real time by sensor 8, put in place behind the signal when detecting gear shift, ECU (Electrical Control Unit) makes left solenoid directional control valve 2 outages, oil hydraulic cylinder two chambeies all communicate with oil circuit, forward gears piston rod 8 and reverse shift fork 19 remain on this position under the effect of shifting of transmission lockable mechanism, finish into shelves action.When left and right sides solenoid valve 2 is switched on simultaneously, oil hydraulic cylinder constitutes differential Placement, the active area in right chamber is that sliding sleeve 9 useful area add forward gears piston rod 8 useful area, the active area in chamber, a left side only is the useful area of forward gears piston rod 8, forward gears piston rod 8 and the right sliding sleeve 9 drive reverse shift fork 19 and pluck shelves to left movement under the effect of differential hydraulic power, and the active force of forward gears piston rod 8 left and right sides equates behind the arrival neutral position, the piston rod stop motion, speed changer is got back to neutral gear.When right solenoid valve energising, when left solenoid valve cuts off the power supply, the right chamber oil-feed of oil hydraulic cylinder, left side chamber oil return, promote forward gears piston rod 8 and left side sliding sleeve 9 to left movement, sensor (6) detects gear shift and puts that ECU (Electrical Control Unit) makes right solenoid valve outage behind the signal in place, finishes the gear shift action.The reverse gear oil hydraulic cylinder is a spring reset formula single-acting cylinder, controls by 1 solenoid valve 2, and when solenoid valve 2 energisings, the left side chamber oil-feed of reverse gear oil hydraulic cylinder, promotion reverse gear piston rod 17 overcomes spring force and moves right, and gear shift is dialled and is referred to that 12 promotion reverse gear reverse shift forks 19 change to reverse gear.When solenoid valve 2 outages, the left side chamber oil return of reverse gear oil hydraulic cylinder, reverse gear piston rod 17 moves to left under the effect of spring 16, and speed changer withdraws from reverse gear and enters neutral gear.This gear-shifting actuating mechanism can be directly installed on the gear shift cover, replaces former manual shifting mechanism.
Claims (4)
1. mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle, comprise valve body (1), solenoid directional control valve (2), cylinder body (3), cover plate (4), sensor (6), permanent magnet (7), forward gears piston rod (8), sliding sleeve (9), resilient key (11), finger (12) is dialled in gear shift, return tube (14), oil inlet pipe (15), spring (16) and reverse gear piston rod (17), it is characterized in that being equipped with on the valve body (1) 7 plug-in type two-position three way solenoid directional control valves (2), valve body has oil input channel on (1), back oil road and work oil duct, wherein oil input channel and back oil road are communicated with the filler opening and the return opening of 7 solenoid directional control valves (2) respectively, and be connected with the hydraulic power device with return tube (14) by oil inlet pipe (15), valve body (1) is fixed on the cylinder body (3) by screw (13), and the work oil duct that valve body (1) is gone up be communicated with the actuator port of solenoid valve (2) and the oil duct of the last oil hydraulic cylinder of cylinder body (3) communicate, be processed with 4 structures and measure-alike piston hole on the cylinder body (3), the identical forward gears piston rod (8) of 3 root architectures and 1 reverse gear piston rod (17) are housed in the piston hole, constitute 4 oil hydraulic cylinders that are arranged in parallel, sliding sleeve (9) is equipped with at 3 forward gears piston rods (8) two ends respectively, piston hole on sliding sleeve (9) outer surface and the cylinder body (3) is for being slidingly matched, sliding sleeve (9) endoporus and forward gears piston rod (8) are for being slidingly matched, in the middle part of forward gears piston rod (8) and the reverse gear piston rod (17) gear shift is housed and dials finger (12), gear shift is dialled finger (12) and fixedly is assemblied on the piston rod by resilient key (11), gear shift is dialled the end of finger (12) and is inserted in the groove of reverse shift fork (19), forward gears piston rod (8) both ends of the surface and reverse gear piston rod (17) right side are fixed with permanent magnet (7), cylinder body (3) both ends of the surface are equipped with cover plate (4), sensor (6) is installed on the cover plate (4), reverse gear piston rod (17) right-hand member is equipped with spring (16), and this actuator is installed on the gear shift cover (18) by the hole on the cylinder body (3).
2. a kind of mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle according to claim 1 is characterized in that sensor (6) is the Hall Linear displacement transducer.
3. a kind of mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle according to claim 1 is characterized in that hydraulic cylinder power dials fingers (12) by the gear shift at forward gears piston rod (8) and reverse gear piston rod (17) middle part and export.
4. a kind of mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle according to claim 1 is characterized in that the reverse gear oil hydraulic cylinder is a spring reset single-acting formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100694854A CN101245850A (en) | 2008-03-20 | 2008-03-20 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100694854A CN101245850A (en) | 2008-03-20 | 2008-03-20 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN101245850A true CN101245850A (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100694854A Pending CN101245850A (en) | 2008-03-20 | 2008-03-20 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032335A (en) * | 2010-12-30 | 2011-04-27 | 浙江吉利汽车研究院有限公司 | Automotive AMT (Automatic Mechanical Transmission) gear selection actuating mechanism |
| CN102168751A (en) * | 2011-04-26 | 2011-08-31 | 浙江吉利汽车研究院有限公司 | Gear-selecting device of electric-control mechanical type automatic transmission |
| CN102261461A (en) * | 2011-04-26 | 2011-11-30 | 浙江吉利汽车研究院有限公司 | Gear selection actuating mechanism of electronic controlled mechanical-type automatic transmission |
| CN102401116A (en) * | 2011-11-11 | 2012-04-04 | 联合汽车电子有限公司 | Quick gear-shifting mechanism omitting gear selecting process and use method thereof |
| CN102606725A (en) * | 2012-03-30 | 2012-07-25 | 湖南大学 | Automatic gear shifting mechanism for manual transmission |
| CN102808936A (en) * | 2012-08-31 | 2012-12-05 | 东风汽车公司 | Gear-selecting and shifting actuating mechanism for automatic mechanical transmission case |
| CN101603592B (en) * | 2009-07-10 | 2013-04-24 | 重庆大学 | Electric automatic shift device of motor vehicle |
| CN104712751A (en) * | 2015-03-26 | 2015-06-17 | 第一拖拉机股份有限公司 | Tractor electric hydraulic control gear shift mechanism |
| CN104747707A (en) * | 2015-03-26 | 2015-07-01 | 第一拖拉机股份有限公司 | Tractor creeper gear operation mechanism |
| CN104813999A (en) * | 2015-05-12 | 2015-08-05 | 金坛柴油机有限公司 | Mechanical brake device of self-propelled sprayer |
| CN104633097B (en) * | 2013-11-08 | 2017-04-12 | 本田技研工业株式会社 | Shift actuator |
| CN106641237A (en) * | 2017-01-22 | 2017-05-10 | 山东科技大学 | AMT hydraulic gear shifting execution system having mechanical positioning function |
| CN106641236A (en) * | 2017-01-22 | 2017-05-10 | 山东科技大学 | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions |
| CN106641224A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT hydraulic gear-shifting execution system having mechanical centering function |
| CN106641235A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT (Automated Mechanical Transmission) hydraulic gear-shifting executing system with pressure limiting and positioning function |
| CN107448600A (en) * | 2017-09-12 | 2017-12-08 | 都匀东方机床有限公司 | Digital controlled planer machine gearbox hydraulic gear shifting structure |
| CN110131410A (en) * | 2019-06-18 | 2019-08-16 | 浙江沃得尔科技股份有限公司 | Shift fork position sensor structure |
| CN110469649A (en) * | 2019-09-04 | 2019-11-19 | 山东雷沃传动有限公司 | A kind of electrichydraulic control shift transmission |
| CN110985664A (en) * | 2019-12-16 | 2020-04-10 | 西安法士特汽车传动有限公司 | Hydraulic gear shifting structure, gear shifting method and transmission |
| CN113775744A (en) * | 2021-10-26 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | Hydraulic automatic gear shifting and selecting system |
| WO2022001433A1 (en) * | 2020-06-28 | 2022-01-06 | Oppo广东移动通信有限公司 | Electronic device and display method |
| CN114483818A (en) * | 2021-12-09 | 2022-05-13 | 中国船舶重工集团公司第七0三研究所 | Hydraulic control shifting fork capable of pushing high-speed rotating part |
| CN114704621A (en) * | 2021-04-25 | 2022-07-05 | 长城汽车股份有限公司 | Executor subassembly, gearbox and car |
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2008
- 2008-03-20 CN CNA2008100694854A patent/CN101245850A/en active Pending
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603592B (en) * | 2009-07-10 | 2013-04-24 | 重庆大学 | Electric automatic shift device of motor vehicle |
| CN102032335A (en) * | 2010-12-30 | 2011-04-27 | 浙江吉利汽车研究院有限公司 | Automotive AMT (Automatic Mechanical Transmission) gear selection actuating mechanism |
| CN102168751A (en) * | 2011-04-26 | 2011-08-31 | 浙江吉利汽车研究院有限公司 | Gear-selecting device of electric-control mechanical type automatic transmission |
| CN102261461A (en) * | 2011-04-26 | 2011-11-30 | 浙江吉利汽车研究院有限公司 | Gear selection actuating mechanism of electronic controlled mechanical-type automatic transmission |
| CN102168751B (en) * | 2011-04-26 | 2014-10-22 | 浙江吉利汽车研究院有限公司 | Gear-selecting device of electric-control mechanical type automatic transmission |
| CN102401116A (en) * | 2011-11-11 | 2012-04-04 | 联合汽车电子有限公司 | Quick gear-shifting mechanism omitting gear selecting process and use method thereof |
| CN102606725A (en) * | 2012-03-30 | 2012-07-25 | 湖南大学 | Automatic gear shifting mechanism for manual transmission |
| CN102808936B (en) * | 2012-08-31 | 2016-03-30 | 东风汽车公司 | Mechanical automatic gearbox gear-selecting and shifting executing mechanism |
| CN102808936A (en) * | 2012-08-31 | 2012-12-05 | 东风汽车公司 | Gear-selecting and shifting actuating mechanism for automatic mechanical transmission case |
| CN104633097B (en) * | 2013-11-08 | 2017-04-12 | 本田技研工业株式会社 | Shift actuator |
| CN104747707A (en) * | 2015-03-26 | 2015-07-01 | 第一拖拉机股份有限公司 | Tractor creeper gear operation mechanism |
| CN104712751A (en) * | 2015-03-26 | 2015-06-17 | 第一拖拉机股份有限公司 | Tractor electric hydraulic control gear shift mechanism |
| CN104813999A (en) * | 2015-05-12 | 2015-08-05 | 金坛柴油机有限公司 | Mechanical brake device of self-propelled sprayer |
| CN106641235B (en) * | 2017-01-22 | 2018-08-28 | 山东海卓电液控制工程技术研究院 | A kind of AMT hydraulic shifts execution system with pressure limiting positioning function |
| CN106641236A (en) * | 2017-01-22 | 2017-05-10 | 山东科技大学 | AMT hydraulic gear shifting execution system having mechanical positioning and centering functions |
| CN106641224A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT hydraulic gear-shifting execution system having mechanical centering function |
| CN106641235A (en) * | 2017-01-22 | 2017-05-10 | 山东海卓电液控制工程技术研究院 | AMT (Automated Mechanical Transmission) hydraulic gear-shifting executing system with pressure limiting and positioning function |
| CN106641237A (en) * | 2017-01-22 | 2017-05-10 | 山东科技大学 | AMT hydraulic gear shifting execution system having mechanical positioning function |
| CN107448600A (en) * | 2017-09-12 | 2017-12-08 | 都匀东方机床有限公司 | Digital controlled planer machine gearbox hydraulic gear shifting structure |
| CN110131410A (en) * | 2019-06-18 | 2019-08-16 | 浙江沃得尔科技股份有限公司 | Shift fork position sensor structure |
| CN110469649A (en) * | 2019-09-04 | 2019-11-19 | 山东雷沃传动有限公司 | A kind of electrichydraulic control shift transmission |
| CN110469649B (en) * | 2019-09-04 | 2023-09-12 | 山东雷沃传动有限公司 | Electrohydraulic control gear shifting gearbox |
| CN110985664A (en) * | 2019-12-16 | 2020-04-10 | 西安法士特汽车传动有限公司 | Hydraulic gear shifting structure, gear shifting method and transmission |
| WO2022001433A1 (en) * | 2020-06-28 | 2022-01-06 | Oppo广东移动通信有限公司 | Electronic device and display method |
| CN114704621A (en) * | 2021-04-25 | 2022-07-05 | 长城汽车股份有限公司 | Executor subassembly, gearbox and car |
| CN113775744A (en) * | 2021-10-26 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | Hydraulic automatic gear shifting and selecting system |
| CN114483818A (en) * | 2021-12-09 | 2022-05-13 | 中国船舶重工集团公司第七0三研究所 | Hydraulic control shifting fork capable of pushing high-speed rotating part |
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