CN103016711A - Gear selecting and shifting actuating mechanism and automatic transmission - Google Patents
Gear selecting and shifting actuating mechanism and automatic transmission Download PDFInfo
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- CN103016711A CN103016711A CN2012105700580A CN201210570058A CN103016711A CN 103016711 A CN103016711 A CN 103016711A CN 2012105700580 A CN2012105700580 A CN 2012105700580A CN 201210570058 A CN201210570058 A CN 201210570058A CN 103016711 A CN103016711 A CN 103016711A
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Abstract
The invention discloses a gear selecting and shifting actuating mechanism and an automatic transmission and relates to the technical field of transmissions, aiming at preventing the situation that gears collide with each other from occurring during gear selection of the transmission. The gear selecting and shifting actuating mechanism comprises a gear selecting motor, a gear selecting shaft, a gear shifting motor, a gear shifting shaft, a gear shifting block, shifting fork shafts and shifting forks, wherein the gear selecting motor is connected with the gear selecting shaft in a driving way, the gear shifting motor is connected with the gear shifting shaft in a driving way, the gear selecting shaft is connected with the gear shifting shaft through a thread pair, the gear shifting block which can rotate along the circumferential direction of the gear shifting shaft is sheathed on the gear shifting shaft, the shifting fork shafts are arranged below the gear shifting block and are arranged at intervals in parallel along the axial direction of the gear shifting shaft, and a shifting fork is fixedly arranged on each shifting fork shaft. When the gear shifting block rotates along the circumferential direction of the gear shifting shaft, one shifting fork shaft is driven to move along the axial direction of the shifting fork shaft. The gear selecting and shifting actuating mechanism is mainly used in automobile transmissions.
Description
Technical field
The present invention relates to the speed changer technical field, relate in particular to a kind of shift-selecting and changing actuating mechanism and have 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 the fuel economy that transmission efficiency is higher, energy loss is less and relatively be conducive to car load.A kind of shift-selecting and changing actuating mechanism of electromechanical comprises gear selection mechanism and gearshift in the prior art, gear selection mechanism comprises the block selecting motor, block selecting axle and be enclosed within block selecting plectrum on the block selecting axle, gearshift comprises shift motor, shifting shaft, be actively set on the power shift gear on the shifting shaft, a plurality of declutch shift shafts that can mesh respectively with power shift gear (arranging the rack structure with the power shift gear engagement on each declutch shift shaft), and be fixed on shift fork on each declutch shift shaft, wherein, block selecting driven by motor block selecting axle rotatablely moves, the block selecting plectrum is moved axially at the block selecting axle, and stir power shift gear by the block selecting plectrum and move axially at shifting shaft, power shift gear and one of them declutch shift shaft are meshed, thereby 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 is axially moved around along it, makes shift fork stir the gearshift synchronizer, thereby realizes gearshift.
Be not difficult to find out from above-mentioned, owing to be provided with the rack structure with the power shift gear engagement on the declutch shift shaft, therefore when the speed changer block selecting, the engagement of the tooth bar on power shift gear and the declutch shift shaft and the risk that may exist tooth to bump tooth may make speed changer have the often hidden danger of warning like this.
Summary of the invention
Occur the phenomenon generation that above-mentioned tooth bumps tooth during for fear of the speed changer block selecting, embodiments of the invention provide 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, a kind of shift-selecting and changing actuating mechanism is provided, comprise block selecting motor, block selecting axle, shift motor, shifting shaft, gearshift shifting block, declutch shift shaft and shift fork, described block selecting motor driving 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, have can be along its described gearshift shifting block that circumferentially rotates for cover on the described shifting shaft, a plurality of described declutch shift shafts are positioned at the below of described gearshift shifting block and arrange along the parallel to an axis interval of described shifting shaft, fix described shift fork on each described declutch shift shaft; When circumferentially rotating, described gearshift shifting block edge stirs one of them described declutch shift shaft moving axially along this declutch shift shaft.
Wherein, described screw pair is the outside thread and the internal thread that is located on the described shifting shaft that is located on the described block selecting axle.
Further, the live axle of described block selecting motor connects the block selecting driving gear, connects the block selecting driven gear on the described block selecting axle, described block selecting driving gear and the engagement of described block selecting driven gear.
Further, the live axle of described shift motor connects the first gearshift driving gear, and described the first gearshift driving gear is engaged with the first gearshift driven gear, and described the first gearshift driven gear meshes described shifting shaft.
Wherein, be connected with the second gearshift driven gear on the described shifting shaft, described the second gearshift driven gear is engaged with the second gearshift driving gear, and described the second gearshift driving gear and described first is shifted gears, and driven gear is coaxial to be fixedly connected with.
Alternatively, described the second gearshift driven gear is tooth sector.
Alternatively, described gearshift shifting block and described the second power shift gear are structure as a whole.
Alternatively, described the first gearshift driven gear and described the second gearshift driving gear are one-body molded is duplicate gear.
On the other hand, also provide a kind of automatic transmission, comprised above-mentioned any one shift-selecting and changing actuating mechanism in the cards.
A kind of shift-selecting and changing actuating mechanism and automatic transmission that the embodiment of the invention provides, when the block selecting machine operation, the block selecting axle rotatablely moves, because the block selecting axle connects shifting shaft by screw pair, therefore can make shifting shaft axially do straight line motion along self rotatablely moving of block selecting axle by this screw pair, and can this shifting shaft axially be moved around along self by positive and negative the transferring of block selecting motor, this shifting shaft also drives simultaneously the gearshift shifting block and moves in mobile process, when the gearshift shifting block is parked in the top of one of them declutch shift shaft, thereby realization block selecting, when shift motor is worked, can stir this declutch shift shaft when circumferentially rotate on gearshift shifting block edge moves axially along self, and can transfer by shift motor positive and negative and make the positive and negative rotation of gearshift shifting block, and then can stir declutch shift shaft and axially move around along self, thereby realize gearshift.Can find out by the action of above-mentioned shifting, this shift-selecting and changing actuating mechanism when carrying out block selecting, the risk that the tooth that can avoid occurring mentioning in the background technique bumps tooth.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the stereogram of embodiment of the invention shift-selecting and changing actuating mechanism;
Fig. 2 is the side view of embodiment of the invention shift-selecting and changing actuating mechanism;
Fig. 3 is the schematic representation of gearshift shifting block in the embodiment of the 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, the 50-internal thread, 6-the first gearshift driving gear, 7-the first gearshift driven gear, 8-the second gearshift driving gear, 9-second gearshift driven gear, 10-shift motor, the 11-shifting block of shifting gears, the 12-declutch shift shaft, the 13-shift fork
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Fig. 1 and Fig. 2 are exemplary embodiment of shift-selecting and changing actuating mechanism provided by the invention.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, have can be along its gearshift shifting block 11 that circumferentially rotates (for example installing between shifting shaft 5 and the gearshift shifting block 11, needle bearing makes the gearshift shifting block rotate around shifting shaft 5 to cover) on the shifting shaft 5, a plurality of declutch shift shafts 12 are positioned at the below of gearshift shifting block 11 and arrange along the parallel to an axis interval of shifting shaft 5, can fix shift fork 13 by for example flexible fastening pin on each declutch shift shaft 12; When circumferentially rotating, gearshift shifting block 11 edges stir one of them declutch shift shaft 12 moving axially along this declutch shift shaft 12.
When 1 work of block selecting motor, block selecting axle 4 rotatablely moves, because block selecting axle 4 connects shifting shaft 5 by screw pair, therefore can make shifting shaft 5 axially do straight line motion along self rotatablely moving of block selecting axle 4 by this screw pair, and transfer by step electric machine 1 positive and negative this shifting shaft 5 is axially moved around along self, this shifting shaft 5 also drives simultaneously gearshift shifting block 11 and moves in mobile process, when gearshift shifting block 11 is parked in the top of one of them declutch shift shaft 12, thereby realization block selecting, when shift motor 10 work, gearshift shifting block 11 can be stirred this declutch shift shaft 12 when circumferentially rotating and move axially along self, and can make the 11 positive and negative rotations of gearshift shifting block by positive and negative the transferring of shift motor 10, and then can stir declutch shift shaft 12 and axially move around along self, thereby realize gearshift.Can find out by the action of above-mentioned shifting, this shift-selecting and changing actuating mechanism when carrying out block selecting, the risk that the tooth that can avoid occurring mentioning in the background technique bumps tooth.
When the tooth that can avoid in block selecting occurring mentioning in the background technique bumps the risk of tooth, may also can avoid occurring speed changer and have the hidden danger of often reporting to the police.
Above-mentioned screw pair can be for being located at the outside thread 40 on the block selecting axle 4 as shown in Figure 1 and being located at internal thread 50 on as shown in Figure 3 the shifting shaft 5, namely can realize being converted into by rotatablely moving of block selecting axle 4 like this straight line motion of shifting shaft 5, so just can realize the block selecting action; Perhaps can also be at block selecting axle 4 bolt that is spirally connected, bolt can be fixedly connected with shifting shaft 5, equally also can realize above-mentioned purpose.
In addition, the embodiment of the invention realizes the action of block selecting by increasing screw pair, fairly simple at stroke Square face, and more convenient control.
Between block selecting motor 1 and block selecting axle 4, can increase reducing gear and reach and increase the purpose of turning round, can reduce like this power of block selecting motor 1, and can make block selecting axle 4 have enough power to drive shifting shaft 5 motions.This reducing gear can connect block selecting driven gear 3 for connecting block selecting driving gear 2 such as Fig. 1 or the live axle with block selecting motor 1 shown in Figure 2 on the block selecting axle 4, this block selecting driving gear 2 and these block selecting driven gear 3 engagements.Wherein, also 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 have enough power, also can increasing between shifting shaft 5 and shift motor 10 slows down to increase turns round mechanism, for example the live axle with shift motor 10 shown in Figure 1 connects the first gearshift driving gear 6, this the first gearshift driving gear 6 engagements first gearshift driven gear 7, the above-mentioned shifting shaft 5 of these the first gearshift driven gear 7 engagements.Wherein, also direct machining gears on the live axle of shift motor 10, this gear forms the first above-mentioned gearshift driving gear 6.
The structure of above-mentioned the first gearshift driven gear 7 engagement shifting shafts 5 can see figures.1.and.2, connect the second gearshift driven gear 9 at shifting shaft 5, the second gearshift driven gear 9 is engaged with the second gearshift driving gear 8, the second gearshift driving gear 8 and the first gearshift driven gear 7 coaxial being fixedly connected with, reduction gearing mechanism of increase further reaches and increases the purpose of turning round between the first gearshift driven gear 7 and shifting shaft 5 like this.Wherein, the second gearshift driving gear 8 can be Fig. 1 or spur gear shown in Figure 2.Only for illustrating, and be not limited to this figure shown in the figure.
The second above-mentioned gearshift driven gear 9 can be tooth sector for example shown in Figure 3, and is this relatively simple for structure, and easy to make, and with respect to the gear of an integral body, the space that tooth sector takies is smaller, is conducive to structural compactness.
As optional scheme, above-mentioned gearshift shifting block 11 can be integrative-structure shown in Figure 3 with this second power shift gear (tooth sector), compare two independently structures, the space that this integrative-structure takies is smaller, so that the compactedness of shift-selecting and changing actuating mechanism is relatively good, and structure is also fairly simple, makes comparatively simply, also may reduce preferably fabricating cost.
In above-mentioned first gearshift driven gear 7 and the second gearshift driving gear 8 can one-body moldedly be duplicate gear also, and similarly, the space that this integrated duplicate gear takies is smaller, and further so that the compactedness of shift-selecting and changing actuating mechanism is relatively good.
Need to prove, for the manufacturer that produces vehicle, above-mentioned any one reducing gear of mentioning, its parts can all can be realized self-control, can avoid the supplier by the outside to assist to produce, and then reducing development cost to a certain extent.
The embodiment of the invention also provides a kind of automatic transmission, comprises above-mentioned any one shift-selecting and changing actuating mechanism in the cards of mentioning.
This automatic transmission is when 1 work of block selecting motor, block selecting axle 4 rotatablely moves, because block selecting axle 4 connects shifting shaft 5 by screw pair, therefore can make shifting shaft 5 do straight line motion rotatablely moving of block selecting axle 4 by this screw pair, this shifting shaft 5 is axially moved around along self, this shifting shaft 5 also drives simultaneously gearshift shifting block 11 and moves in mobile process, when gearshift shifting block 11 is parked in the top of one of them declutch shift shaft 12, thereby realization block selecting, when shift motor 10 work, gearshift shifting block 11 can be stirred this declutch shift shaft 12 when circumferentially rotating and move axially along self, thereby realizes gearshift.Can find out by the action of above-mentioned shifting, this shift-selecting and changing actuating mechanism when carrying out block selecting, the risk that the tooth that can avoid occurring mentioning in the background technique bumps tooth.
The integral structure layout of this shift-selecting and changing actuating mechanism is also comparatively simple, and reasonably therefore layout also may make the layout of other parts realization rationalization in the automatic transmission case in automatic transmission case.
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 invention is:
Gear selecting: when gear selecting, 1 work of block selecting motor, driving block selecting driving gear 2 during the drive shaft turns of this block selecting motor 1 rotates simultaneously, block selecting driving gear 2 drives block selecting driven gear 3 and rotates, and block selecting axle 4 is rotated simultaneously, because shift selection shaft 4 is connected with shifting shaft and is connected by screw pair, therefore shifting shaft 5 moves axially along self, make move on the shifting shaft 5 gearshift shifting block 11 with wherein and the relative position of declutch shift shaft 12, can be by the clockwise and anticlockwise of block selecting motor 1, shifting shaft 5 is axially moved around along it, thereby realize the gear selecting action.
Gearshift: when gear shift, shift motor 10 work, driving the first gearshift driving gear 6 during the drive shaft turns of this shift motor 1 rotates simultaneously, the first gearshift driving gear 6 drives the second gearshift driven gear 7 and rotates, the second gearshift driving gear 8 rotates thereupon simultaneously, and tooth sector (the second gearshift driven gear 9) is rotated simultaneously, thereby driving shifting shaft 5 rotates, by rotatablely moving of tooth sector, so that gearshift shifting block 11 is stirred declutch shift shaft 12 along the axial motion of self, make shift fork 13 stir the gearshift synchronizer, by the clockwise and anticlockwise of shift motor 10, declutch shift shaft 12 is axially moved around along it, thereby realize the gear shift action.
More than; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, 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. 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 driving 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, have can be along its described gearshift shifting block that circumferentially rotates for cover on the described shifting shaft, a plurality of described declutch shift shafts are positioned at the below of described gearshift shifting block and arrange along the parallel to an axis interval of described shifting shaft, fix described shift fork on each described declutch shift shaft; When circumferentially rotating, described gearshift shifting block edge stirs one of them described declutch shift shaft moving axially along this declutch shift shaft.
2. shift-selecting and changing actuating mechanism according to claim 1 is characterized in that, described screw pair is the outside thread and the internal thread that is located on the described shifting shaft that is located on the described block selecting axle.
3. shift-selecting and changing actuating mechanism according to claim 2 is characterized in that, the live axle of described block selecting motor connects the block selecting driving gear, connects the block selecting driven gear on the described block selecting axle, described block selecting driving gear and the engagement of described block selecting driven gear.
4. each described shift-selecting and changing actuating mechanism according to claim 1-3, it is characterized in that, the live axle of described shift motor connects the first gearshift driving gear, and described the first gearshift driving gear is engaged with the first gearshift driven gear, and described the first gearshift driven gear meshes described shifting shaft.
5. shift-selecting and changing actuating mechanism according to claim 4, it is characterized in that, be connected with the second gearshift driven gear on the described shifting shaft, described the second gearshift driven gear is engaged with the second gearshift driving gear, and described the second gearshift driving gear and described first is shifted gears, and driven gear is coaxial to be fixedly connected with.
6. shift-selecting and changing actuating mechanism according to claim 5 is characterized in that, described the 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 the second power shift gear are structure as a whole.
8. shift-selecting and changing actuating mechanism according to claim 5 is characterized in that, described the first gearshift driven gear and described the second gearshift driving gear are one-body molded to be duplicate gear.
9. an automatic transmission is characterized in that, comprises each described shift-selecting and changing actuating mechanism of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570058.0A CN103016711B (en) | 2012-12-25 | 2012-12-25 | A kind of shift-selecting and changing actuating mechanism and automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN103016711A true CN103016711A (en) | 2013-04-03 |
| CN103016711B CN103016711B (en) | 2016-04-20 |
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| CN201210570058.0A Expired - Fee Related CN103016711B (en) | 2012-12-25 | 2012-12-25 | A kind of shift-selecting and changing actuating mechanism and automatic transmission |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104913052A (en) * | 2014-03-10 | 2015-09-16 | 通用汽车环球科技运作有限责任公司 | A manual transmission |
| 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 |
| CN106133408A (en) * | 2014-03-26 | 2016-11-16 | 舍弗勒技术股份两合公司 | Transmission actuator for a motor vehicle transmission |
| 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 |
| CN111089164A (en) * | 2019-12-30 | 2020-05-01 | 宁波高发汽车控制***股份有限公司 | Gear shifting actuator |
| CN111089165A (en) * | 2020-03-25 | 2020-05-01 | 坤泰车辆***（常州）有限公司 | Automatic gear shifting device for transmission |
| CN112824713A (en) * | 2019-11-20 | 2021-05-21 | Fca意大利股份公司 | System for operating a gearbox for a motor vehicle |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913052A (en) * | 2014-03-10 | 2015-09-16 | 通用汽车环球科技运作有限责任公司 | A manual transmission |
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| 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 |
| CN112824713A (en) * | 2019-11-20 | 2021-05-21 | Fca意大利股份公司 | System for operating a gearbox for a motor vehicle |
| CN111089164A (en) * | 2019-12-30 | 2020-05-01 | 宁波高发汽车控制***股份有限公司 | Gear shifting actuator |
| CN111089164B (en) * | 2019-12-30 | 2022-04-12 | 宁波高发汽车控制***股份有限公司 | Gear shifting actuator |
| CN111089165A (en) * | 2020-03-25 | 2020-05-01 | 坤泰车辆***（常州）有限公司 | Automatic gear shifting device for transmission |
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| CN103016711B (en) | 2016-04-20 |
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