CN102322519A - Gear shifting actuating mechanism of double-clutch automatic gearbox - Google Patents
Gear shifting actuating mechanism of double-clutch automatic gearbox Download PDFInfo
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- CN102322519A CN102322519A CN201110175141A CN201110175141A CN102322519A CN 102322519 A CN102322519 A CN 102322519A CN 201110175141 A CN201110175141 A CN 201110175141A CN 201110175141 A CN201110175141 A CN 201110175141A CN 102322519 A CN102322519 A CN 102322519A
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- gearshift
- selector fork
- lever
- interlocking
- shifting
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Abstract
The invention requests to protect a gear shifting actuating mechanism of a double-clutch gearbox, which comprises a gear-shifting shifting fork mechanism consisting of a gear shifting shaft and gear-shifting shifting forks. The gear-shifting shifting fork mechanism is provided with interlocking pins and limit pins, which are used for realizing interlocking and limit functions. A gear shifting lever assembly is connected and arranged between the gear-shifting shifting fork mechanism and a hydraulic operation system and is used for realizing different gear shifting travels and forces of long-distance gear shifting operation by regulating a lever ratio. The gear-shifting actuating mechanism of the double-clutch gearbox, to which the invention relates, has a simple structure, low cost and reliable performance. The requirements of the double-clutch automatic gearbox on long-distance gear shifting operation, interlocking and limit can be met.
Description
Technical field
The present invention relates to the actuator of shifting gears, be specifically related to be used for the gearshift actuator of double-clutch speed changer.
Background technique
The gearshift executive system of double-clutch speed changer is one of key technology during double-clutch speed changer is designed and developed, and it is directly connected to the gearshift Performance And Reliability of speed changer.In existing conventional transmission design; In conjunction with publicity patent CN101413582A, CN101457832A, CN201373091Y; Can find out that speed changer mainly goes up the cooperation of gearshift shifting block and interlocking ring (or interlock board, choosing gearshift sleeve), the switching and the interlocking of realization gear through choosing gearshift axle.
In the design process of double-clutch speed changer; Owing to adopt dynamic lubrication to replace splash lubrication; Reduced on the one hand the needs of oil mass, the opposing party's over glaze system arranges also more compact, but it is distant also to cause drive line and shifting fork mechanism to leave the hydraulic control mechanism of automatic speed-changing system.Simultaneously; Because the automatic speed changing hydraulic control system directly adopts a plurality of hydraulic jacks each gear to be carried out the mode of independent gear shift control; Rather than conventional manual choosing gearshift axle adds mechanical interlocked mechanism transmission gear carried out the selection and the switching of gear, brought challenge to double-clutch automatic gearbox long distance choosing gearshift reliability of structure and interlocking safety Design.
Summary of the invention
The present invention is directed to the long distance manipulation of double-clutch automatic gearbox gear shift mechanism and the deficiency of interlocking control requirement and existing technology; Design a kind of gearshift actuator of double clutch gearbox; Combine structures such as lever with interlocking plunger, position limit pin; Realize long distance gearshift and interlocking with simple structure and less cost, improve double-clutch speed changer long distance choosing gearshift reliability of structure and Security.
The present invention seeks to realize through following technological scheme:
A kind of gearshift actuator of double clutch gearbox; Comprise the selector fork mechanism that forms by gearshift axle, gearshift axle and selector fork; Be connected in the assembly of changing lever between selector fork mechanism and the hydraulic control system, and be arranged in interlocking plunger and position limit pin in the selector fork mechanism.
For the interlocking that realizes gear and spacing, the selector fork of need interlocking is arranged on the same gearshift axle, the gearshift diameter of axle is to processing interlocking pin-and-hole and limit pin hole.
Interlocking plunger is installed in the interlocking pin-and-hole, can radially slide along declutch shift shaft.At first selector fork over against the position axis of interlocking pin-and-hole one side to opening the rectangle groove, have ring-like interlock slot in position over against interlocking pin-and-hole opposite side.And on second selector fork design one convex structure, this convex structure axially extends the rectangle groove position of first selector fork along gearshift axle, and in the position open loop type interlock slot of convex structure over against interlocking plunger.The length of said interlocking plunger is greater than the diameter of gearshift axle, but is slightly less than the degree of depth sum of gearshift shaft diameter and ring-like interlock slot.When any shift fork of interlocking structure moves, move selector fork the interlocking plunger on the selector fork axle is extruded, and clamp-on in the ring-like interlock slot of another shift fork, thereby stop moving axially of another shift fork, realize the interlocking of two selector forks motion.Realize that another gear can guarantee to be in the positive lock state, makes it can not hang up two retainings simultaneously, reaches interlocking function when speed changer is put into gear a gear.
Position limit pin radially is fixed on the gearshift axle, processing axial limiting groove on corresponding second selector fork, and said position limit pin inserts in the restraining groove of second selector fork.The gearshift stroke of said selector fork and the axial dimension of restraining groove are consistent, and position limit pin cooperates with restraining groove, and the realization selector fork is spacing the axial limit position, guarantee the gearshift accuracy of speed changer.
The said mechanism that changes lever comprises change lever a seat assembly, change lever rotating shaft and a plurality of changing lever; The rotating shaft of changing lever is installed on the seat assembly of changing lever; Vertical interlaced is arranged in the gearshift axle; The axle of changing lever is gone up has a plurality of changing lever corresponding to the selector fork coaxial arrangement, and each end of changing lever inserts in selector fork retaining fork pockets, and an end links to each other with corresponding gearshift actuator.Through between selector fork mechanism and hydraulic control system, increasing leverage,, can obtain long difference gearshift stroke and power apart from shift control through the adjustment lever ratio.
It is thus clear that simple in structure, with low cost, the reliable performance of the gearshift actuator of the double clutch gearbox that the present invention relates to can satisfy double-clutch automatic gearbox length apart from shift control and the spacing needs of interlocking.
Description of drawings
Fig. 1 is double-clutch automatic speed-change case gearshift actuator structural drawing;
Fig. 2 is double-clutch automatic speed-change case gearshift executive system lever support structural drawing;
Fig. 3 is double-clutch automatic speed-change case gearshift interlocking limit structure and schematic diagram;
Fig. 4 is the double-clutch automatic speed-change case gearshift rectangle groove direction structure figure of actuator.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technological scheme of the present invention.
Like Fig. 1 and shown in Figure 3: be with selector fork 3 on the gearshift axle 1, selector fork 2, fixing position limit pin 4 matches with rectangle groove 28 on the selector fork 2 on the gearshift axle 1, limits the axial displacement of selector fork 2.Seat assembly 5 vertical interlaced of changing lever are arranged in gearshift axle 1; A seat assembly 5 of changing lever is made up of the bearing 8 of changing lever, lever pad 9 and lever support rivet 11; Change lever 7 with change lever 6 coaxial arrangement in the rotating shaft 10 of changing lever, the rotating shaft 10 of changing lever by lever pad 9, lever support rivet 11 relative fixed on the bearing 8 of changing lever.7 the b end 16 of changing lever is cylindrical integral shifting block 20, inserts in the retaining fork pockets 19 on the selector fork 3, and 7 a end 15 of changing lever is cylinder open shifting block 21, links to each other with corresponding gearshift actuator.6 the d end 17 of changing lever is cylindrical integral shifting block 23, inserts in the retaining fork pockets 22 on the selector fork 2, and 6 the c end 18 of changing lever is cylinder open shifting block 24, links to each other with corresponding gearshift actuator.When shift gears actuator's drive cylinder open shifting block 21 or cylinder open shifting block 24 move up and down; Then change lever 7 or change lever 6 around changing lever rotating shaft 10 counterclockwise or clockwise rotate; And by cylindrical integral shifting block 20 in retaining fork pockets 19 or cylindrical integral shifting block 23 in retaining fork pockets 22, drive selector fork 3 or selector fork 2 down or on move.The change lever relative position of rotating shaft 10 of adjusting, also just changed change lever 7 with change lever 6 lever ratio, can mate adjustment to the gearshift stroke and the gearshift power of gearshift execution architecture.
As shown in Figure 2: selector fork 3, selector fork 2 skies are enclosed within on the gearshift axle 1, can be along gear level axle 1 to moving.Be processed with interlocking pin-and-hole 13, limit pin hole 14 on the gearshift axle 1; Interlocking plunger 12 is installed on the gearshift axle 1 through interlocking pin-and-hole 13; Gapped between interlocking plunger 12 and the interlocking pin-and-hole 13; Interlocking plunger 12 passes the interlocking pin-and-hole 13 on the rectangle groove 26 on the selector fork 3 and the axle 1 of shifting gears; Can in interlocking pin-and-hole 13, slide flexibly, and limit its sliding space together by ring-like interlock slot on the selector fork B2 27 and ring-like interlock slot 25 on the selector fork A3, the length of interlocking plunger 12 slightly is shorter than the diameter of gearshift axle 1 and the degree of depth sum of ring-like interlock slot 25 or 27.Position limit pin 4 is installed on the gearshift axle 1 through limit pin hole 14; And firm fixation can not relative movement; Shift gears behind the designing requirement stroke; Rectangle groove 28 end faces of selector fork 2 arrive to position limit pin 4, and position limit pin 4 makes it that moving of axial direction can not be taken place again, and simple and reliable gearshift stroke to selector fork 2 limits.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4; During gearshift, 7 the gearshift actuator implementation capacities that a end 15 is born of changing lever in the mechanism that changes lever are delivered to 7 the b end 16 of changing lever by a certain percentage, and the retaining fork pockets 19 on the selector fork 3 holds 16 to cooperate with 7 the b of changing lever; The retaining fork pockets 19 promotion selector forks 3 that power are delivered to selector fork 3 move; Through ring-like interlock slot 25 interlocking plunger 12 is extruded, then interlocking plunger 12 falls into the ring groove 27 of selector fork 2 through interlocking pin-and-hole 13, because the length of interlocking plunger 12 slightly is shorter than the diameter of gearshift axle 1 and the degree of depth sum of ring- like interlock slot 25 or 27; This moment, selector fork can freely move axially; The appropriate location as long as selector fork 3 axially slightly squints, interlocking plunger 12 supports the ring-like interlock slot 27 on the selector fork 2 with interlocking plunger 12 reliably owing to receive the restriction of selector fork 3 structures; Stoped the axial motion of selector fork 2, when having realized selector fork 3 motions to the secure ratcs of selector fork 2.
During gearshift; 6 the gearshift actuator implementation capacities that c end 18 is born of changing lever in the mechanism that changes lever are delivered to 6 the d end 17 of changing lever by a certain percentage; The retaining fork pockets 22 of selector fork 2 cooperates with 6 the d end 17 of changing lever, and power is delivered to the retaining fork pockets 22 of selector fork 2, and promotion selector fork 2 moves; Ring groove 27 is extruded interlocking plunger 12; And clamp-on in the ring groove 25 of selector fork 3 through interlocking pin-and-hole 13, because the length of interlocking plunger 13 slightly is shorter than the diameter of gear level 1 and the degree of depth sum of ring- like interlock slot 25 or 27, the appropriate location as long as selector fork 2 axially slightly squints; Interlocking plunger 12 is owing to receive the structural limitations of selector fork 2; Reliably interlocking plunger 12 is supported the ring groove on the selector fork 3, has stoped the axial motion of selector fork 3, when having realized selector fork 2 motions to the secure ratcs of selector fork 3.
Above-described embodiment describes the preferred implementation of this programme; Be not to this programme scope limit; Under the prerequisite of the design spirit that does not break away from this programme; Various distortion and improvement that those of ordinary skills make the technological scheme of this programme all should fall in the protection domain that claims of this programme confirm.
Claims (4)
1. the gearshift actuator of a double clutch gearbox comprises the selector fork mechanism that gearshift axle, gearshift axle and selector fork are formed;
It is characterized in that also comprising the assembly of changing lever that is connected between selector fork mechanism and the hydraulic control system, and be arranged in interlocking plunger and position limit pin in the selector fork mechanism;
Need the selector fork of interlocking to be arranged on the same gearshift axle, the gearshift diameter of axle is to processing interlocking pin-and-hole and limit pin hole;
Said interlocking plunger is installed in the interlocking pin-and-hole, at first selector fork over against the position axis of interlocking pin-and-hole one side to opening the rectangle groove, have ring-like interlock slot in position over against interlocking pin-and-hole opposite side; And on second selector fork design one convex structure, this convex structure axially extends the rectangular groove position of first selector fork along gearshift axle, and the convex structure is over against the position open loop type interlock slot of interlocking plunger; The length of said interlocking plunger is greater than the diameter of gearshift axle, but is slightly less than the degree of depth sum of gearshift shaft diameter and ring-like interlock slot;
Said position limit pin radially is fixed on the gearshift axle, processing axial limiting groove on corresponding second selector fork, and said position limit pin inserts in the restraining groove of second selector fork; The gearshift stroke of said selector fork and the axial dimension of restraining groove are consistent, and position limit pin cooperates with restraining groove, and the realization selector fork is spacing the axial limit position;
The said mechanism that changes lever comprises change lever a seat assembly, change lever rotating shaft and a plurality of changing lever; The rotating shaft of changing lever is installed on the seat assembly of changing lever; Vertical interlaced is arranged in the gearshift axle; The axle of changing lever is gone up has a plurality of changing lever corresponding to the selector fork coaxial arrangement, and each end of changing lever inserts in selector fork retaining fork pockets, and an end links to each other with corresponding gearshift actuator.
2. the gearshift actuator of double clutch gearbox according to claim 1, it is characterized in that: said interlocking plunger and interlocking pin-and-hole are Spielpassung, interlocking plunger pin-and-hole relatively is free movable.
3. the gearshift actuator of double clutch gearbox according to claim 1 and 2; It is characterized in that the said end that inserts in the selector fork retaining fork pockets of changing lever is the cylindrical integral shifting block, and an end that links to each other with the corresponding actuator of shifting gears is the cylinder open shifting block.
4. the gearshift actuator of double clutch gearbox according to claim 1; It is characterized in that: said retaining lever support assembly comprises the bearing of changing lever, lever pad and lever support rivet, the rotating shaft of changing lever by lever pad and lever support rivet relative fixed on the bearing of changing lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110175141 CN102322519B (en) | 2011-06-27 | 2011-06-27 | Gear shifting actuating mechanism of double-clutch automatic gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110175141 CN102322519B (en) | 2011-06-27 | 2011-06-27 | Gear shifting actuating mechanism of double-clutch automatic gearbox |
Publications (2)
| Publication Number | Publication Date |
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| CN102322519A true CN102322519A (en) | 2012-01-18 |
| CN102322519B CN102322519B (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110175141 Active CN102322519B (en) | 2011-06-27 | 2011-06-27 | Gear shifting actuating mechanism of double-clutch automatic gearbox |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143941A (en) * | 2013-03-01 | 2013-06-12 | 芜湖陀曼精机科技有限公司 | Automatic gear shift mechanism of working table |
| CN105333138A (en) * | 2014-07-24 | 2016-02-17 | 约翰迪尔（天津）有限公司 | Shifting fork mechanism, transmission with shifting fork mechanism and tractor |
| CN106641240A (en) * | 2017-02-15 | 2017-05-10 | 湖南农业大学 | Gear shifting device integrating clutch control function and control method |
| CN106763750A (en) * | 2017-02-15 | 2017-05-31 | 湖南农业大学 | A kind of device and its control method with remote control gearshift function |
| CN109555854A (en) * | 2019-01-14 | 2019-04-02 | 重庆青山工业有限责任公司 | A kind of limiting device of Manual speed changer shifting fork |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5950492A (en) * | 1997-01-31 | 1999-09-14 | Mtd Products Inc | Shifter assembly for use within a vehicle transmission |
| WO2006004422A1 (en) * | 2004-06-30 | 2006-01-12 | Kongsberg Automotive As | System for shifting gears |
| CN201627908U (en) * | 2010-01-26 | 2010-11-10 | 重庆青山工业有限责任公司 | Shift mechanism of six-shift speed changer |
| CN202100700U (en) * | 2011-06-27 | 2012-01-04 | 重庆青山工业有限责任公司 | Shift actuating mechanism for double-clutch gearbox |
-
2011
- 2011-06-27 CN CN 201110175141 patent/CN102322519B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5950492A (en) * | 1997-01-31 | 1999-09-14 | Mtd Products Inc | Shifter assembly for use within a vehicle transmission |
| WO2006004422A1 (en) * | 2004-06-30 | 2006-01-12 | Kongsberg Automotive As | System for shifting gears |
| CN201627908U (en) * | 2010-01-26 | 2010-11-10 | 重庆青山工业有限责任公司 | Shift mechanism of six-shift speed changer |
| CN202100700U (en) * | 2011-06-27 | 2012-01-04 | 重庆青山工业有限责任公司 | Shift actuating mechanism for double-clutch gearbox |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143941A (en) * | 2013-03-01 | 2013-06-12 | 芜湖陀曼精机科技有限公司 | Automatic gear shift mechanism of working table |
| CN103143941B (en) * | 2013-03-01 | 2015-04-22 | 芜湖陀曼精机科技有限公司 | Automatic gear shift mechanism of working table |
| CN105333138A (en) * | 2014-07-24 | 2016-02-17 | 约翰迪尔（天津）有限公司 | Shifting fork mechanism, transmission with shifting fork mechanism and tractor |
| CN105333138B (en) * | 2014-07-24 | 2018-05-25 | 约翰迪尔（天津）有限公司 | A kind of shifting fork mechanism and gearbox and tractor with the shifting fork mechanism |
| CN106641240A (en) * | 2017-02-15 | 2017-05-10 | 湖南农业大学 | Gear shifting device integrating clutch control function and control method |
| CN106763750A (en) * | 2017-02-15 | 2017-05-31 | 湖南农业大学 | A kind of device and its control method with remote control gearshift function |
| CN106763750B (en) * | 2017-02-15 | 2017-11-28 | 湖南农业大学 | A kind of device and its control method with remote control gearshift function |
| CN106641240B (en) * | 2017-02-15 | 2017-11-28 | 湖南农业大学 | A kind of gearshift and control method of integrated clutch manipulation function |
| CN109555854A (en) * | 2019-01-14 | 2019-04-02 | 重庆青山工业有限责任公司 | A kind of limiting device of Manual speed changer shifting fork |
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| Publication number | Publication date |
|---|---|
| CN102322519B (en) | 2013-10-16 |
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