CN101603592A - Electric automatic shift device of motor vehicle - Google Patents
Electric automatic shift device of motor vehicle Download PDFInfo
- Publication number
- CN101603592A CN101603592A CNA2009101043056A CN200910104305A CN101603592A CN 101603592 A CN101603592 A CN 101603592A CN A2009101043056 A CNA2009101043056 A CN A2009101043056A CN 200910104305 A CN200910104305 A CN 200910104305A CN 101603592 A CN101603592 A CN 101603592A
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- gearshift
- spring
- moving direction
- slide block
- housing
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Abstract
The invention discloses a kind of electric automatic shift device of motor vehicle, shift motor is dialled by the actuator drives gearshift and is referred to that the drive selector fork can reciprocatingly slide along the gearshift axle, also comprise housing and be arranged on the gearshift spring I in the housing and the spring II that shifts gears, be positioned at gearshift group finger and fixedly install slide block respectively along gearshift moving direction both sides, gearshift spring I withstands on gearshift by the slide block corresponding with it along gearshift moving direction respectively with the spring II that shifts gears and dials the finger both sides; Gearshift spring II withstands between the to-and-fro motion clutch end and the slide block corresponding with it of transmission device, the present invention can avoid gearshift to bear excessive impact, realize soft gearshift action, improve stability and the accuracy of engage a gear mechanism when operation, thereby improve reliably carrying out of engage a gear, the wearing and tearing and the impact that alleviate synchronizer key when guaranteeing enough gearshift power, reduce vehicle trouble rate and maintenance cost, quality of the present invention is little, and is simple in structure, reliable operation, low cost of manufacture.
Description
Technical field
The present invention relates to a kind of Motor Vehicle gearshift assembly, particularly a kind of electric automatic shift device of motor vehicle.
Background technique
Electric control mechanical type automatic speed variator gearshift actuator mainly adopts electric-controlled hydraulic and two kinds of driving mode of electricity powered.And electricity powered gearshift actuator is because volume is little, compact structure, light weight and cost is low obtains using comparatively widely.Electric control mechanical type automatic speed variator is to shift gears actuator to realize the gearshift action of conventional manual speed changer by automatic control, realize by pure mechanical transmission course, mainly comprise actuating motor and drive unit, actuating motor drives selector fork by drive unit and realizes gearshift, get rid of manual operation, automaticity is higher, saves driver's the amount of labour.Though the automatic control gearshift eliminating people's of actuator of the prior art subjectivity participates in, and the driver is freed from the driving procedure of complexity, the driver is subjective by rule of thumb, and operation is a kind of soft shift process, and is less to the impact of gearshift.Under perfect condition, the shift process of automatic transmission is as long as the rational gearshift time of regulation can reach setting and surpass manual shift, and shift process impacts little to gearshift.But, Motor Vehicle car load running environment and road conditions are comparatively complicated and changeable, when shift process can not be finished according to ideal process smoothly because of environmental factor, motoring machinery mechanism proceeds shift process, thereby unavoidably can produce impact force to gearshift, and can cause deforming of gearshift, the pressure between slide block and synchronizer geared sleeve is crossed ambassador's slider wear, the operation conditions of Motor Vehicle is worsened, improve rate of fault and maintenance cost.
For overcoming the above problems, occurred a kind ofly by the mechanism that spring cushions the engage a gear process is set, still, this mechanism can't guarantee the stability of engage a gear process, causes the engage a gear difficulty, and is malfunctioning, causes operational difficulty.
Therefore, need transform existing automatic gear shift apparatus, can avoid mechanical splice very stiff and demanding when gearshift, realize soft gearshift action, the wearing and tearing and the impact that alleviate synchronizer key when guaranteeing enough gearshift power simultaneously, improve the stability of engage a gear mechanism when operation and accurately fixed, thereby improve reliably carrying out of engage a gear, reduce vehicle trouble rate and maintenance cost.
Summary of the invention
In view of this, purpose of the present invention provides a kind of electric automatic shift device of motor vehicle, can avoid mechanical splice very stiff and demanding when gearshift, realize soft gearshift action, the wearing and tearing and the impact that alleviate synchronizer key when guaranteeing enough gearshift power simultaneously, improve stability and the accuracy of engage a gear mechanism when operation, thereby improve reliably carrying out of engage a gear, reduce vehicle trouble rate and maintenance cost.
Electric automatic shift device of motor vehicle of the present invention, comprise the gearshift drive motor, gearshift is dialled and is referred to, selector fork, gearshift axle and power are output as reciprocating transmission device, described shift motor is dialled by the actuator drives gearshift and is referred to that the drive selector fork can reciprocatingly slide along the gearshift axle, also comprise the gear shift damping device, comprise housing and be arranged on the gearshift spring I in the housing and the spring II that shifts gears, be positioned at gearshift group finger and slide block be set respectively along gearshift moving direction both sides, in gearshift moving direction secure fit, gearshift spring I and gearshift spring II withstood on gearshift by the slide block corresponding with it along gearshift moving direction respectively and dial and refer to both sides between two slide blocks and gearshift were dialled and referred to; Gearshift spring II withstands between the to-and-fro motion clutch end and the slide block corresponding with it of transmission device; Described slide block and shell inner surface do not cooperate having the gap along the mode that gearshift moving direction is slided, and housing is provided with the bar shaped groove along gearshift moving direction, and gearshift is dialled and referred to pass bar shaped groove and selector fork in the moving direction secure fit of shifting gears.
Further, described housing one end is provided with end cap, and gearshift spring I one end withstands the end cap internal surface, and the other end withstands on the slide block side corresponding with it; The gearshift drive motor is fixedly installed on the housing the other end, and the pto of gearshift drive motor is connected in the power intake of transmission device;
Further, fixedly connected by set screw nut between described two slide blocks by stud bolt, stud bolt pass that gearshift dial to refer to and with its in gearshift moving direction secure fit;
Further, do not cooperate having the gap between described slide block and the shell inner surface along the mode that gearshift moving direction is slided;
Further, described transmission device is a lead-screw drive mechanism, comprise screw mandrel and the nut that is spun on the leading screw, the pto of described leading screw and gearshift drive motor is in the circumferencial direction secure fit, nut be arranged in the housing with housing cooperating along the mode that gearshift moving direction slip circumferencial direction is fixed; Gearshift spring II withstands on nut and gearshift is dialled between the finger;
Further, described nut surface is provided with the bar shaped restraining groove along gearshift moving direction, and stop screw is set on the housing, and the bar shaped restraining groove is stretched in described stop screw end;
Further, described housing is provided with fixed support.
Beneficial effect of the present invention: electric automatic shift device of motor vehicle of the present invention, dial the finger both sides in gearshift the gearshift spring is set respectively, and by the slide block structure restriction group lateral displacement that refers to, not only utilize the pretightening force of drive unit and spring to drive gearshift group finger, can avoid mechanical splice very stiff and demanding when gearshift when making selector fork stir the synchronizer sliding sleeve, avoid gearshift to bear excessive impact, realize soft gearshift action, can also improve stability and the accuracy of engage a gear mechanism when operation, thereby improve reliably carrying out of engage a gear, the wearing and tearing and the impact that alleviate synchronizer key when further guaranteeing enough gearshift power, reduce vehicle trouble rate and maintenance cost, quality of the present invention is little, and is simple in structure, reliable operation, low cost of manufacture.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Accompanying drawing is a structural representation of the present invention.
Embodiment
Accompanying drawing is a structural representation of the present invention, as shown in the figure: the electric automatic shift device of motor vehicle of present embodiment, comprise gearshift drive motor 1 (actuating motor), gearshift is dialled and is referred to 11, selector fork 20, gearshift axle 19 and power are output as reciprocating transmission device, described gearshift drive motor 1 is dialled by the actuator drives gearshift and is referred to that 11 drive selector forks 20 can reciprocatingly slide along gearshift axle 19, also comprise the gear shift damping device, comprise housing and be arranged on gearshift spring I 16 and the gearshift spring II 5 that has preload pressure in the housing, be arranged in gearshift group finger 11 in the housing 6 and slide block (figure is respectively slide block 13 and slide block 9) be set respectively along gearshift moving direction both sides, described slide block 13 and slide block 9 and housing 6 internal surfaces are cooperating along the mode that gearshift moving direction is slided, slide block 13 and slide block 9 and gearshift are dialled between the finger 11 in gearshift moving direction secure fit, gearshift spring I 16 and gearshift spring II 5 withstand on gearshift by the slide block corresponding with it (slide block 13 and slide block 9) along gearshift moving direction respectively and dial and refer to 11 both sides, and the to-and-fro motion clutch end that gearshift spring II 5 withstands on transmission device and gearshift are dialled and referred between 11 sides and its corresponding slide block (being slide block 9 among the figure); Housing 6 is provided with bar shaped groove 61 along the gearshift moving direction, and gearshift is dialled and referred to that 11 pass bar shaped groove 61 and selector fork 20 in gearshift moving direction secure fit, and bar shaped groove 61 is positioned at an end opening of housing, being beneficial to gearshift and dialling and refer to 11 installation; Adopt slide block structure, the effectively also spring force of definite accurately gearshift spring, and restriction is shifted gears group finger in horizontal degrees of freedom, guarantees that shift process accurately carries out.
In the present embodiment, described housing 6 one ends are provided with end cap 17, and gearshift spring I 16 1 ends withstand end cap 17 internal surfaces, and the other end withstands on the slide block corresponding with it 13 sides; Gearshift drive motor 1 is fixedly installed on housing 6 the other ends, and the pto of gearshift drive motor 1 is connected in the power intake of transmission device; Simple and compact for structure, installation and removal improve and install and maintenance efficiency easily.
In the present embodiment, fixedly connected by two set screw nuts (being respectively set screw nut 15 and set screw nut 7 among the figure) by stud bolt 10 between described slide block 13 and the slide block 9, set screw nut 15 and set screw nut 7 are provided with elastic washer (being respectively elastic washer 14 and elastic washer 8 among the figure) respectively between the slide block of correspondence, prevent to become flexible the reliability of assurance device; Stud bolt 10 pass gearshift dial to refer to 11 and with its in gearshift moving direction secure fit; Present embodiment is horizontally through stud bolt 10 by resilient key 12 and gearshift group finger 11 achieves a fixed connection, and is simple and compact for structure, installs easily.
In the present embodiment, do not cooperate having the gap between described slide block 13 and slide block 9 and housing 6 internal surfaces along the mode that gearshift moving direction is slided; The located lateral effect is better, avoids the accuracy because of the lateral displacement influence gearshift of slide block.
In the present embodiment, described transmission device is a lead-screw drive mechanism, comprise screw mandrel 2 and the nut 3 that is spun on the leading screw 2, the pto of described leading screw 2 and gearshift drive motor 1 is in the circumferencial direction secure fit, nut 3 be arranged in the housing 6 with housing 6 cooperating along the mode that gearshift moving direction slip circumferencial direction is fixed; Gearshift spring II5 withstands on nut 3 and gearshift is dialled between the finger 11; Transmission is accurately reliable, and is simple in structure, guarantees to shift gears to carry out accurately and reliably; Certainly, also can adopt other driving mechanism,, also can reach goal of the invention, but the drive characteristic complexity of gear rack can influence the gearshift effect because of return difference, and structure is comparatively complicated such as the gear rack transmission.
In the present embodiment, described nut 3 surfaces are provided with bar shaped restraining groove 31 along gearshift moving direction, and stop screw 4 is set on the housing 6, and bar shaped restraining groove 31 is stretched in described stop screw 4 ends, prevents that nut from rotating at circumferencial direction; Limit structure is simple, and installation and removal are convenient.
In the present embodiment, described housing 6 is provided with fixed support 18, and convenient gearshift actuator installs and fixes.
The present invention in use, gearshift drive motor 1 can be realized forward and reverse rotation by ECU (Electrical Control Unit) control, when ECU (Electrical Control Unit) is sent gear shifting signal, when gearshift drive motor 1 needs forward rotation to move to realize shifting gears, leading screw 2 drive nuts 3 move to the left along gearshift moving direction, make gearshift spring II 5 compressions, and compression gearshift spring I 16, slide block 13 and slide block 9 move to the left along gearshift moving direction simultaneously, refer to that 11 are driven selector fork 20 along declutch shift shaft 19 axial motions thereby make gearshift dial, to realize hanging the action of high gear; And when gearshift drive motor 1 needs backward rotation to move to realize shifting gears, the right side motion vertically of leading screw 2 drive nuts 3, under the effect of the spring I 16 that shifts gears, the right side motion vertically of slide block 13 and slide block 9 drives gearshift and dials finger 11 and the action of selector fork 20 to realize hanging to hang down gear.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (7)
1. electric automatic shift device of motor vehicle, comprise the gearshift drive motor, gearshift is dialled and is referred to, selector fork, gearshift axle and power are output as reciprocating transmission device, described shift motor is dialled by the actuator drives gearshift and is referred to that the drive selector fork can reciprocatingly slide along the gearshift axle, it is characterized in that: also comprise the gear shift damping device, comprise housing and be arranged on the gearshift spring I in the housing and the spring II that shifts gears, be positioned at gearshift group finger and slide block be set respectively along gearshift moving direction both sides, in gearshift moving direction secure fit, gearshift spring I and gearshift spring II withstood on gearshift by the slide block corresponding with it along gearshift moving direction respectively and dial and refer to both sides between two slide blocks and gearshift were dialled and referred to; Gearshift spring II withstands between the to-and-fro motion clutch end and the slide block corresponding with it of transmission device; Described slide block and shell inner surface do not cooperate having the gap along the mode that gearshift moving direction is slided, and housing is provided with the bar shaped groove along gearshift moving direction, and gearshift is dialled and referred to pass bar shaped groove and selector fork in the moving direction secure fit of shifting gears.
2. electric automatic shift device of motor vehicle according to claim 1 is characterized in that: described housing one end is provided with end cap, and gearshift spring I one end withstands the end cap internal surface, and the other end withstands on the slide block side corresponding with it; The gearshift drive motor is fixedly installed on the housing the other end, and the pto of gearshift drive motor is connected in the power intake of transmission device.
3. electric automatic shift device of motor vehicle according to claim 2 is characterized in that: fixedly connected by set screw nut between described two slide blocks by stud bolt, stud bolt pass that gearshift dial to refer to and with its in gearshift moving direction secure fit.
4. electric automatic shift device of motor vehicle according to claim 3 is characterized in that: do not cooperate having the gap along the mode that gearshift moving direction is slided between described slide block and the shell inner surface.
5. according to the described electric automatic shift device of motor vehicle of the arbitrary claim of claim 1 to 4, it is characterized in that: described transmission device is a lead-screw drive mechanism, comprise screw mandrel and the nut that is spun on the leading screw, the pto of described leading screw and gearshift drive motor is in the circumferencial direction secure fit, nut be arranged in the housing with housing cooperating along the mode that gearshift moving direction slip circumferencial direction is fixed; Gearshift spring II withstands on nut and gearshift is dialled between the finger.
6. electric automatic shift device of motor vehicle according to claim 5 is characterized in that: described nut surface is provided with the bar shaped restraining groove along gearshift moving direction, and stop screw is set on the housing, and the bar shaped restraining groove is stretched in described stop screw end.
7. electric automatic shift device of motor vehicle according to claim 6 is characterized in that: described housing is provided with fixed support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910104305 CN101603592B (en) | 2009-07-10 | 2009-07-10 | Electric automatic shift device of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910104305 CN101603592B (en) | 2009-07-10 | 2009-07-10 | Electric automatic shift device of motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101603592A true CN101603592A (en) | 2009-12-16 |
| CN101603592B CN101603592B (en) | 2013-04-24 |
Family
ID=41469443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910104305 Expired - Fee Related CN101603592B (en) | 2009-07-10 | 2009-07-10 | Electric automatic shift device of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101603592B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206529A (en) * | 2013-04-07 | 2013-07-17 | 无锡金田元丰科技股份有限公司 | Linear movement buffering type speed change control mechanism and automatic speed change device |
| CN104776219A (en) * | 2015-04-22 | 2015-07-15 | 浙江万里扬变速器股份有限公司 | Self-adaptive shifting fork assembly |
| CN106956579A (en) * | 2017-05-08 | 2017-07-18 | 重庆大学 | Hollow motor formula electric automobile driving switching and transmission gear shift system |
| CN110319188A (en) * | 2018-03-29 | 2019-10-11 | 广州汽车集团股份有限公司 | A kind of shift linkage and gearshift |
| CN114658840A (en) * | 2022-03-24 | 2022-06-24 | 江苏新能源汽车研究院有限公司 | Active speed regulation and gear shifting mechanism and method for automobile power system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018211287A1 (en) * | 2018-07-09 | 2020-01-09 | Zf Friedrichshafen Ag | Actuating device for a clutch and coupling arrangement with the actuating device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851733Y (en) * | 2005-10-28 | 2006-12-27 | 一品机械股份有限公司 | Speed changing mechanism of electric vehicle servo motor |
| CN101245850A (en) * | 2008-03-20 | 2008-08-20 | 重庆大学 | Mechanical automatic speed-changing direct-shifting hydraulic actuator of heavy vehicle |
-
2009
- 2009-07-10 CN CN 200910104305 patent/CN101603592B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206529A (en) * | 2013-04-07 | 2013-07-17 | 无锡金田元丰科技股份有限公司 | Linear movement buffering type speed change control mechanism and automatic speed change device |
| CN104776219A (en) * | 2015-04-22 | 2015-07-15 | 浙江万里扬变速器股份有限公司 | Self-adaptive shifting fork assembly |
| CN106956579A (en) * | 2017-05-08 | 2017-07-18 | 重庆大学 | Hollow motor formula electric automobile driving switching and transmission gear shift system |
| CN106956579B (en) * | 2017-05-08 | 2023-12-01 | 重庆大学 | Hollow motor type electric automobile driving switching and transmission speed changing system |
| CN110319188A (en) * | 2018-03-29 | 2019-10-11 | 广州汽车集团股份有限公司 | A kind of shift linkage and gearshift |
| CN114658840A (en) * | 2022-03-24 | 2022-06-24 | 江苏新能源汽车研究院有限公司 | Active speed regulation and gear shifting mechanism and method for automobile power system |
| CN114658840B (en) * | 2022-03-24 | 2024-03-01 | 江苏新能源汽车研究院有限公司 | Active speed-regulating gear shifting mechanism and method for automobile power system |
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| Publication number | Publication date |
|---|---|
| CN101603592B (en) | 2013-04-24 |
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Granted publication date: 20130424 Termination date: 20200710 |