CN103016711B - A kind of shift-selecting and changing actuating mechanism and automatic transmission - Google Patents
A kind of shift-selecting and changing actuating mechanism and automatic transmission Download PDFInfo
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- CN103016711B CN103016711B CN201210570058.0A CN201210570058A CN103016711B CN 103016711 B CN103016711 B CN 103016711B CN 201210570058 A CN201210570058 A CN 201210570058A CN 103016711 B CN103016711 B CN 103016711B
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- gearshift
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Abstract
The invention discloses a kind of shift-selecting and changing actuating mechanism and automatic transmission, relate to transmission technology field, in order to avoid occurring during speed changer block selecting that tooth touches the phenomenon generation of tooth.This shift-selecting and changing actuating mechanism and automatic transmission comprise block selecting motor, block selecting axle, shift motor, shifting shaft, gearshift shifting block, declutch shift shaft and shift fork, described block selecting motor drives and connects described block selecting axle, described shift motor drives and connects described shifting shaft, described block selecting axle connects described shifting shaft by screw pair, on described shifting shaft, cover has the described gearshift shifting block that can rotate along its circumference, multiple described declutch shift shaft is positioned at the below of described gearshift shifting block and the parallel to an axis interval along described shifting shaft is arranged, each described declutch shift shaft fixes described shift fork; Declutch shift shaft moving axially along this declutch shift shaft described in one of them is stirred when described gearshift shifting block circumferentially rotates.The present invention is mainly useful in automotive transmission.
Description
Technical field
The present invention relates to transmission technology field, particularly relate to a kind of shift-selecting and changing actuating mechanism and there is the automatic transmission of this gear shift mechanism.
Background technique
Nowadays, the speed changer of automobile mainly comprises manual transmission and automatic transmission, and wherein the key technology of automatic transmission is the actuator of its shifting.Shift-selecting and changing actuating mechanism generally comprises hydraulic type actuator and electromechanical actuator, and wherein the shift-selecting and changing actuating mechanism of electromechanical has that transmission efficiency is higher, energy loss is less and compares the fuel economy being conducive to car load.In prior art, a kind of shift-selecting and changing actuating mechanism of electromechanical comprises gear selection mechanism and gearshift, gear selection mechanism comprises block selecting motor, block selecting axle and the block selecting plectrum be enclosed within block selecting axle, gearshift comprises shift motor, shifting shaft, be actively set on the power shift gear on shifting shaft, multiple declutch shift shafts (each declutch shift shaft being arranged the rack structure engaged with power shift gear) that can engage respectively with power shift gear, and the shift fork be fixed on each declutch shift shaft, wherein, the rotary motion of block selecting driven by motor block selecting axle, block selecting plectrum is moved axially on block selecting axle, and stir power shift gear by block selecting plectrum and move axially on shifting shaft, power shift gear is engaged with one of them declutch shift shaft, thus realize block selecting, shifting shaft rotates under the drive of shift motor, makes power shift gear and declutch shift shaft generation engagement driving, and then declutch shift shaft can be made axially to move around along it, makes shift fork stir gearshift synchronizer, thus realizes gearshift.
Be not difficult to find out from above-mentioned, owing to declutch shift shaft being provided with the rack structure engaged with power shift gear, therefore, when speed changer block selecting, power shift gear and the engaging of tooth bar on declutch shift shaft and may there is the risk that tooth touches tooth, may make speed changer there is the hidden danger of often reporting to the police like this.
Summary of the invention
In order to avoid occurring during speed changer block selecting that above-mentioned tooth touches the phenomenon generation of tooth, The embodiment provides a kind of shift-selecting and changing actuating mechanism and automatic transmission.
For achieving the above object, embodiments of the invention adopt following technological scheme:
On the one hand, provide a kind of shift-selecting and changing actuating mechanism, comprise block selecting motor, block selecting axle, shift motor, shifting shaft, gearshift shifting block, declutch shift shaft and shift fork, described block selecting motor drives and connects described block selecting axle, described shift motor drives and connects described shifting shaft, described block selecting axle connects described shifting shaft by screw pair, on described shifting shaft, cover has the described gearshift shifting block that can rotate along its circumference, multiple described declutch shift shaft is positioned at the below of described gearshift shifting block and the parallel to an axis interval along described shifting shaft is arranged, each described declutch shift shaft fixes described shift fork; Declutch shift shaft moving axially along this declutch shift shaft described in one of them is stirred when described gearshift shifting block circumferentially rotates.
Wherein, described screw pair is the outside thread be located on described block selecting axle and the internal thread be located on described shifting shaft.
Further, the live axle of described block selecting motor connects block selecting driving gear, and described block selecting axle connects block selecting driven gear, and described block selecting driving gear engages with described block selecting driven gear.
Further, the live axle of described shift motor connects the first gearshift driving gear, and described first gearshift driving gear is engaged with the first gearshift driven gear, and described first gearshift driven gear engages described shifting shaft.
Wherein, described shifting shaft is connected with the second gearshift driven gear, described second gearshift driven gear is engaged with the second gearshift driving gear, and described second gearshift driving gear and described first driven gear of shifting gears coaxially is fixedly connected with.
Alternatively, described second gearshift driven gear is tooth sector.
Alternatively, described gearshift shifting block and described second driven gear of shifting gears is structure as a whole.
Alternatively, described first gearshift driven gear and described second shift gears driving gear one-body molded be duplicate gear.
On the other hand, additionally provide a kind of automatic transmission, comprise any one shift-selecting and changing actuating mechanism in the cards above-mentioned.
A kind of shift-selecting and changing actuating mechanism that the embodiment of the present invention provides and automatic transmission, when block selecting machine operation, the rotary motion of block selecting axle, because block selecting axle connects shifting shaft by screw pair, therefore shifting shaft can be made in the rotary motion of block selecting axle axially to do straight line motion along self by this screw pair, and this shifting shaft axially can be moved around along self by positive and negative the transferring of block selecting motor, this shifting shaft also drives gearshift shifting block to move in the process of movement simultaneously, when shifting block of shifting gears is parked in the top of one of them declutch shift shaft, thus realize block selecting, when shift motor works, this declutch shift shaft can be stirred when gearshift shifting block circumferentially rotates to move axially along self, and the positive and negative rotation of gearshift shifting block can be made by positive and negative the transferring of shift motor, and then declutch shift shaft can be stirred axially move around along self, thus realize gearshift.Can be found out by above-mentioned shifting action, this shift-selecting and changing actuating mechanism, when carrying out block selecting, can avoid the tooth occurring mentioning in background technique to touch the risk of tooth.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram of embodiment of the present invention shift-selecting and changing actuating mechanism;
Fig. 2 is the side view of embodiment of the present invention shift-selecting and changing actuating mechanism;
Fig. 3 is the schematic diagram of shifting block of shifting gears in embodiment of the present invention shift-selecting and changing actuating mechanism.
Reference character:
1-block selecting motor, 2-block selecting driving gear, 3-block selecting driven gear, 4-block selecting axle, 40-outside thread, 5-shifting shaft, 50-internal thread, 6-first shifts gears driving gear, and 7-first shifts gears driven gear, 8-second shifts gears driving gear, 9-second shifts gears driven gear, 10-shift motor, and 11-shifts gears shifting block, 12-declutch shift shaft, 13-shift fork
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
Fig. 1 and Fig. 2 is shift-selecting and changing actuating mechanism provided by the invention exemplary embodiment.This shift-selecting and changing actuating mechanism comprises block selecting motor 1, block selecting axle 4, shift motor 10, shifting shaft 5, gearshift shifting block 11, declutch shift shaft 12 and shift fork 13, wherein, block selecting motor 1 drives and connects block selecting axle 4, shift motor 10 drives and connects shifting shaft 5, block selecting axle 4 connects shifting shaft 5 by screw pair, on shifting shaft 5, cover has the gearshift shifting block 11 (between shifting shaft 5 and gearshift shifting block 11, installation example such as needle bearing rotates to make gearshift shifting block around shifting shaft 5) that can rotate along its circumference, multiple declutch shift shaft 12 is positioned at the gearshift below of shifting block 11 and the parallel to an axis interval along shifting shaft 5 is arranged, each declutch shift shaft 12 can fix shift fork 13 by such as flexible fastening pin, one of them declutch shift shaft 12 moving axially along this declutch shift shaft 12 is stirred when gearshift shifting block 11 circumferentially rotates.
When block selecting motor 1 works, block selecting axle 4 rotary motion, because block selecting axle 4 connects shifting shaft 5 by screw pair, therefore shifting shaft 5 can be made in the rotary motion of block selecting axle 4 axially to do straight line motion along self by this screw pair, and by positive and negative the transferring of block selecting motor 1, this shifting shaft 5 is axially moved around along self, this shifting shaft 5 also drives gearshift shifting block 11 to move in the process of movement simultaneously, when shifting block 11 of shifting gears is parked in the top of one of them declutch shift shaft 12, thus realize block selecting, when shift motor 10 works, this declutch shift shaft 12 can be stirred when gearshift shifting block 11 circumferentially rotates to move axially along self, and the positive and negative rotation of gearshift shifting block 11 can be made by positive and negative the transferring of shift motor 10, and then declutch shift shaft 12 can be stirred axially move around along self, thus realize gearshift.Can be found out by above-mentioned shifting action, this shift-selecting and changing actuating mechanism, when carrying out block selecting, can avoid the tooth occurring mentioning in background technique to touch the risk of tooth.
When the tooth occurring mentioning in background technique being avoided to touch the risk of tooth in block selecting, may also can avoid occurring that speed changer exists the hidden danger of often reporting to the police.
Above-mentioned screw pair can for the internal thread 50 on the outside thread 40 be located on block selecting axle 4 as shown in Figure 1 and the shifting shaft 5 be located at as shown in Figure 3, namely can realize like this by the convert rotational motion of block selecting axle 4 is the straight line motion of shifting shaft 5, so just can realize block selecting action; Or can also be spirally connected bolt on block selecting axle 4, and bolt can be fixedly connected with shifting shaft 5, equally also can realize above-mentioned purpose.
In addition, the embodiment of the present invention realizes the action of block selecting by increasing screw pair, fairly simple in climb displacement, and more convenient control.
Reducing gear can be increased reach the object increasing and turn round between block selecting motor 1 and block selecting axle 4, the power of block selecting motor 1 can be reduced like this, and block selecting axle 4 can be made to have enough power move to drive shifting shaft 5.This reducing gear can be as shown in Figure 1 or 2 the live axle of block selecting motor 1 is connected block selecting driving gear 2, block selecting axle 4 connects block selecting driven gear 3, this block selecting driving gear 2 engages with this block selecting driven gear 3.Wherein, also can direct machining gears on the live axle of block selecting motor 1, this gear forms block selecting driving gear 2; And block selecting driven gear 3 can be fixedly connected with block selecting axle 4 by the mode of splined.
Similarly, in shift process, in order to make shifting shaft 5, there is enough power, also deceleration Zeng Niu mechanism can be increased between shifting shaft 5 and shift motor 10, driving gear 6 that the live axle of shift motor 10 connection first is shifted gears such as shown in Fig. 1, this the first gearshift driving gear 6 engages the first gearshift driven gear 7, and this first gearshift driven gear 7 engages above-mentioned shifting shaft 5.Wherein, also can direct machining gears on the live axle of shift motor 10, this gear forms the first above-mentioned gearshift driving gear 6.
The structure that above-mentioned first gearshift driven gear 7 engages shifting shaft 5 can see figures.1.and.2, shifting shaft 5 connects the second gearshift driven gear 9, second gearshift driven gear 9 is engaged with the second gearshift driving gear 8, second gearshift driving gear 8 and first driven gear 7 of shifting gears coaxially is fixedly connected with, and shifting gears first like this increases a reduction gearing mechanism between driven gear 7 and shifting shaft 5 and reach the object increasing and turn round further.Wherein, the second gearshift driving gear 8 can be the spur gear shown in Fig. 1 or Fig. 2.Be only shown in figure and illustrate, and be not limited to this figure.
Above-mentioned second gearshift driven gear 9 can for the tooth sector such as shown in Fig. 3, this relatively simple for structure, and easy to make, and the gear overall relative to, the space that tooth sector takies is smaller, is conducive to structural compactness.
Alternatively, above-mentioned gearshift shifting block 11 can be the integrative-structure shown in Fig. 3 with this second driven gear (tooth sector) of shifting gears, compare two independently structures, the space that this integrative-structure takies is smaller, make the compactedness of shift-selecting and changing actuating mechanism relatively good, and structure is also fairly simple, makes comparatively simple, also may reduce fabricating cost preferably.
The first gearshift driven gear 7 and second in above-mentioned driving gear 8 of shifting gears can one-body moldedly be also duplicate gear, and similarly, the space that this integrated duplicate gear takies is smaller, and makes the compactedness of shift-selecting and changing actuating mechanism relatively good further.
It should be noted that, for producing the manufacturer of vehicle, above-mentioned any one reducing gear mentioned, its parts all can realize self-control, can avoid assisting to produce by the supplier of outside, and then development cost can be reduced to a certain extent.
The embodiment of the present invention additionally provides a kind of automatic transmission, comprises above-mentioned any one shift-selecting and changing actuating mechanism in the cards mentioned.
This automatic transmission is when block selecting motor 1 works, block selecting axle 4 rotary motion, because block selecting axle 4 connects shifting shaft 5 by screw pair, therefore shifting shaft 5 can be made in the rotary motion of block selecting axle 4 to do straight line motion by this screw pair, this shifting shaft 5 is axially moved around along self, this shifting shaft 5 also drives gearshift shifting block 11 to move in the process of movement simultaneously, when shifting block 11 of shifting gears is parked in the top of one of them declutch shift shaft 12, thus realize block selecting, when shift motor 10 works, this declutch shift shaft 12 can be stirred when gearshift shifting block 11 circumferentially rotates to move axially along self, thus realize gearshift.Can be found out by above-mentioned shifting action, this shift-selecting and changing actuating mechanism, when carrying out block selecting, can avoid the tooth occurring mentioning in background technique to touch the risk of tooth.
The integral structure layout of this shift-selecting and changing actuating mechanism is also comparatively simple, and can reasonably layout in automatic transmission case, other parts in automatic transmission case therefore also may be made to realize the layout rationalized.
In conjunction with foregoing and Fig. 1-Fig. 3, the course of action of the shift-selecting and changing actuating mechanism in the embodiment of the present invention is:
Block selecting: when block selecting, block selecting motor 1 works, drive block selecting driving gear 2 to rotate during the drive shaft turns of this block selecting motor 1 simultaneously, block selecting driving gear 2 drives block selecting driven gear 3 to rotate, and block selecting axle 4 is rotated simultaneously, because block selecting axle 4 is connected by screw pair with shifting shaft 5, therefore shifting shaft 5 moves axially along self, make shifting shaft 5 to move to gearshift shifting block 11 and the position that wherein also a declutch shift shaft 12 is relative, can by the clockwise and anticlockwise of block selecting motor 1, shifting shaft 5 is axially moved around along it, thus realizes block selecting action.
Gearshift: when shifting gears, shift motor 10 works, drive the first gearshift driving gear 6 to rotate during the drive shaft turns of this shift motor 1 simultaneously, first gearshift driving gear 6 drives the first gearshift driven gear 7 to rotate, second gearshift driving gear 8 rotates thereupon simultaneously, and tooth sector (the second gearshift driven gear 9) is rotated simultaneously, thus drive shifting shaft 5 to rotate, by the rotary motion of tooth sector, gearshift shifting block 11 is made to stir the axial motion of declutch shift shaft 12 along self, shift fork 13 is made to stir gearshift synchronizer, by the clockwise and anticlockwise of shift motor 10, declutch shift shaft 12 is axially moved around along it, thus realize gear shifting action.
Above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. a shift-selecting and changing actuating mechanism, it is characterized in that, comprise block selecting motor, block selecting axle, shift motor, shifting shaft, gearshift shifting block, declutch shift shaft and shift fork, described block selecting motor drives and connects described block selecting axle, described shift motor drives and connects described shifting shaft, described block selecting axle connects described shifting shaft by screw pair, and described block selecting axle, described shifting shaft and described screw pair coaxial line are arranged, on described shifting shaft, cover has the described gearshift shifting block that can rotate along its circumference, multiple described declutch shift shaft is positioned at the below of described gearshift shifting block and the parallel to an axis interval along described shifting shaft is arranged, each described declutch shift shaft fixes described shift fork, declutch shift shaft moving axially along this declutch shift shaft described in one of them is stirred when described gearshift shifting block circumferentially rotates.
2. shift-selecting and changing actuating mechanism according to claim 1, is characterized in that, described screw pair is the outside thread be located on described block selecting axle and the internal thread be located on described shifting shaft.
3. shift-selecting and changing actuating mechanism according to claim 2, is characterized in that, the live axle of described block selecting motor connects block selecting driving gear, and described block selecting axle connects block selecting driven gear, and described block selecting driving gear engages with described block selecting driven gear.
4. the shift-selecting and changing actuating mechanism according to any one of claim 1-3, it is characterized in that, the live axle of described shift motor connects the first gearshift driving gear, and described first gearshift driving gear is engaged with the first gearshift driven gear, and described first gearshift driven gear engages described shifting shaft.
5. shift-selecting and changing actuating mechanism according to claim 4, it is characterized in that, described shifting shaft is connected with the second gearshift driven gear, described second gearshift driven gear is engaged with the second gearshift driving gear, and described second gearshift driving gear and described first driven gear of shifting gears coaxially is fixedly connected with.
6. shift-selecting and changing actuating mechanism according to claim 5, is characterized in that, described second gearshift driven gear is tooth sector.
7. shift-selecting and changing actuating mechanism according to claim 5, is characterized in that, described gearshift shifting block and described second driven gear of shifting gears is structure as a whole.
8. shift-selecting and changing actuating mechanism according to claim 5, is characterized in that, described first gearshift driven gear and described second shift gears driving gear one-body molded be duplicate gear.
9. an automatic transmission, is characterized in that, comprises the shift-selecting and changing actuating mechanism described in any one of claim 1-8.
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CN201210570058.0A CN103016711B (en) | 2012-12-25 | 2012-12-25 | A kind of shift-selecting and changing actuating mechanism and automatic transmission |
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CN201210570058.0A CN103016711B (en) | 2012-12-25 | 2012-12-25 | A kind of shift-selecting and changing actuating mechanism and automatic transmission |
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CN103016711A CN103016711A (en) | 2013-04-03 |
CN103016711B true CN103016711B (en) | 2016-04-20 |
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Families Citing this family (13)
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DE102014003239A1 (en) * | 2014-03-10 | 2015-09-10 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | manual transmission |
DE112015001414A5 (en) * | 2014-03-26 | 2016-12-08 | Schaeffler Technologies AG & Co. KG | Cam mechanism for actuating a selector shaft |
CN104675981A (en) * | 2015-02-12 | 2015-06-03 | 苏州紫荆清远新能源汽车技术有限公司 | Electric control and electric gear selecting and shifting actuation mechanism for automatic gearbox |
CN106051149A (en) * | 2016-07-26 | 2016-10-26 | 连云港北方变速器有限责任公司 | Transmission device |
CN106051150A (en) * | 2016-07-29 | 2016-10-26 | 重庆青山工业有限责任公司 | Automatic transmission shifting mechanism for automobile |
CN108591445A (en) * | 2018-02-11 | 2018-09-28 | 上海众持汽车零部件有限公司 | A kind of new-energy automobile gear shifting operator |
CN109340369A (en) * | 2018-10-31 | 2019-02-15 | 武汉理工通宇新源动力有限公司 | Two grades of mechanical transmission gear shifting actuating mechanisms and automatic mechanical transmission |
CN109340362A (en) * | 2018-11-30 | 2019-02-15 | 株洲齿轮有限责任公司 | Speed changer and its gearshift |
CN109357007A (en) * | 2018-12-07 | 2019-02-19 | 上海索达传动机械有限公司 | A kind of gearbox and its gearshift |
CN110375065A (en) * | 2019-08-19 | 2019-10-25 | 宜宾丰川动力科技有限公司 | A kind of shift mechanism, dynamical system and electric vehicle |
EP3825582B1 (en) * | 2019-11-20 | 2024-04-10 | Stellantis Europe S.p.A. | A system for operation of a gearbox for a motor vehicle |
CN111089164B (en) * | 2019-12-30 | 2022-04-12 | 宁波高发汽车控制系统股份有限公司 | Gear shifting actuator |
CN111089165B (en) * | 2020-03-25 | 2020-07-24 | 坤泰车辆系统(常州)有限公司 | Automatic gear shifting device for transmission |
Family Cites Families (5)
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JP2005155849A (en) * | 2003-11-27 | 2005-06-16 | Bosch Automotive Systems Corp | Motor driving-type transmission operating device |
CN102207191B (en) * | 2011-02-28 | 2014-04-23 | 中国北方车辆研究所 | Screw type gear shift executing mechanism for mechanical type automatic transmission system |
CN202392099U (en) * | 2011-11-16 | 2012-08-22 | 南京绿控传动科技有限公司 | Automatic gear shifting device for changing speed of vehicle |
CN102434660A (en) * | 2011-12-09 | 2012-05-02 | 重庆青山工业有限责任公司 | Gear selection/shift mechanism of rear-driving automatic transmission |
CN202545789U (en) * | 2012-03-29 | 2012-11-21 | 广西玉柴机器股份有限公司 | Electric worm drive mechanism of electronic control mechanical automatic transmission |
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