CN202708032U - Automatic gear-shifting device - Google Patents
Automatic gear-shifting device Download PDFInfo
- Publication number
- CN202708032U CN202708032U CN 201220304424 CN201220304424U CN202708032U CN 202708032 U CN202708032 U CN 202708032U CN 201220304424 CN201220304424 CN 201220304424 CN 201220304424 U CN201220304424 U CN 201220304424U CN 202708032 U CN202708032 U CN 202708032U
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- cam
- connecting rod
- clutch
- gear shift
- worm
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Abstract
The utility model provides an automatic gear-shifting device, which comprises a driving motor, a worm, a worm gear, a clutch connecting rod, a screw rod, a screw rod nut, a flange cam and a gear shifting fork connecting rod, wherein the driving motor drives the worm; the worm gear is matched with the worm, and the side surface of the worm is provided with a groove-type cam; the clutch connecting rod is slidably connected with the groove-type cam; the screw is fixedly connected with the worm; the screw rod nut is rotatably connected with the screw; the flange cam is fixed on the screw rod nut; and the gear shifting fork connecting rod is matched with the flange cam. The automatic gear-shifting device disclosed by the embodiment of the utility model finally achieves the automatic gear-shifting function of an automobile by controlling the opening and closing of the clutch by means of the clutch connecting rod and controlling the gears of a transmission by means of the gear shifting fork connecting rod and has the advantages of low cost and low manufacturing difficulty.
Description
Technical field
The utility model relates to a kind of automatic gear shift apparatus.
Background technique
The gearshift problem is the problem that the automobile industry is being made great efforts solution always in the vehicle traveling process, from manual speed-changing device completely to various forms of automatic transimissions, the quality of selector gear performance directly has influence on the travelling comfort of automobile, navigability and operational stability, Security, development along with society, car is as a kind of means of transportation, enter just at leisure each family, the driver that increasing driver is particularly newly crossed the threshold is to the operating characteristics of car, price, easy and the travelling comfort of operation requires also more and more higher, and increasing people is also more and more higher to the expectation of the price performance of car two in order to improve quality of the life.
Existing gearbox operating mechanism is except manually passing through the human control, combine to handle by hydraulic system and electric control system in addition, automatic transmission such as the English full name of AT(, be translated as the hydraulic automatic gearbox), the English full name of AMT(is that automated mechanical transmission is translated as is mechanical automatic gearbox, to be equipped with the electronically controlled hydraulic control system of a cover in common manual transmission and clutch,), the English full name of CVT(is Continuous Variable Transmission, be translated as the continuous variable transmission), the English full name of DCT(is double clutch transmission, be translated as double clutch gearbox, wherein the DSG gearbox is popular call Direct-Shift Gearing), the control system of these gearboxes is exactly our common electrichydraulic control control system, this type systematic is extensively by high gear car in the world, the uses such as racing car, but owing in the electrichydraulic control operation system hydraulic system being arranged, require very high to part processing precision, the difficulty of manufacturing process is higher, hydraulic medium is subjected to the impact of temperature etc. larger, also has sealing difficulty that liquid medium brings etc., cause the high of the whole manufacture cost of gearbox casing and user cost, in being difficult to be configured to, the low side vehicle has had a strong impact on the application of this technology on automobile.
The model utility content
The utility model provides a kind of automatic gear shift apparatus, has solved gearbox and has used the technical problem that the hydraulic system cost is high, manufacture difficulty is large.
A kind of automatic gear shift apparatus that the utility model provides comprises: drive motor; Worm screw, described drive motor drives worm screw; Worm gear, described worm gear cooperates described worm screw, and described worm gear side is provided with grooved cam; Clutch linkage, the described clutch linkage described grooved cam that is slidingly connected; Screw mandrel, described screw mandrel is fixedly connected with described worm gear; The feed screw nut, described feed screw nut is rotationally connected described screw mandrel; Cam flange, described cam flange are fixed on the described feed screw nut; Gear shift fork connecting rod, described gear shift fork connecting rod cooperates described cam flange.
Further, described drive motor is actuating motor or stepper motor.
Further, the rotation center of the described reference circle of wormwheel center of circle and grooved cam is identical.
Further, described grooved cam is provided with cam path, an end of the described clutch linkage cam path that is slidingly connected.
Further, the center line of described cam flange is parallel with feed screw nut's center line.
Further, clutch linkage comprises first clutch connecting rod and second clutch connecting rod; Respectively be provided with a grooved cam on the described worm gear bi-side, be respectively the first grooved cam and the second grooved cam, the phase angle of described the first grooved cam and the second grooved cam differs 180 °; Described first clutch connecting rod cooperates the first grooved cam, and the second clutch connecting rod cooperates the second grooved cam.
Further, described the first grooved cam is provided with the first cam path, described the second grooved cam is provided with the second cam path, an end of described first clutch connecting rod first cam path that is slidingly connected, an end of second clutch connecting rod second cam path that is slidingly connected.
Further, the phase angle of described the first cam path and the second cam path differs 180 °.
Further, cam flange 600 is " S " type.
The utility model embodiment's automatic gear shift apparatus by the folding of clutch linkage solenoidoperated cluthes, simultaneously by the gear of gear shift fork connecting rod control speed changer, has finally been realized the automatic gear change function of automobile, and the cost of this device is low, manufacture difficulty is little.
Description of drawings
Fig. 1 is the utility model embodiment automatic gear shift apparatus schematic diagram.
Fig. 2 is the utility model embodiment automatic gear shift apparatus other direction schematic diagram.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Below in conjunction with drawings and Examples the utility model is described further.
To shown in Figure 2, a kind of automatic gear shift apparatus of the utility model embodiment comprises such as Fig. 1:
Drive motor;
Screw mandrel 400, described screw mandrel 400 is fixedly connected with described worm gear 200;
The feed screw nut 500, and described feed screw nut 500 is rotationally connected described screw mandrel 400;
Gear shift fork connecting rod 700, described gear shift fork connecting rod 700 cooperates described cam flange 600.
Concrete, drive motor is direct current generator, be actuating motor or stepper motor etc., the action of this motor is input to ECU by signals such as the rotating speed of automobile engine that collects, the speed of a motor vehicle, moments of torsion and carries out output signal control after the computing, this drive motor can be realized forward and backward, and the revolution of rotation or angle can be controlled.
Screw mandrel 400, described screw mandrel 400 is fixedly connected with described worm gear 200, is the ball rolling lead screw in the present embodiment, also can adopt other to have the screw mandrel of identical function.
The feed screw nut 500, and described feed screw nut 500 is fixedly connected with described screw mandrel 400.
Gear shift fork connecting rod 700, described gear shift fork connecting rod 700 cooperates described cam flange 600.The interlock of described gear shift fork connecting rod 700 control transmission gears with separate.
The below introduces clutch linkage 300 in detail for the control procedure of clutch.
The utility model embodiment adopts double clutch, so have two clutch linkages 300, is respectively first clutch connecting rod 310 and second clutch connecting rod 320; Respectively be provided with a grooved cam 210 on worm gear 200 bi-side, be respectively the first grooved cam 211 and the second grooved cam 212, the phase angle of described the first grooved cam 211 and the second grooved cam 212 differs 180 °; First clutch connecting rod 310 cooperates the first grooved cam 211, and second clutch connecting rod 320 cooperates the second grooved cam 212.Described the first grooved cam 211 is provided with the first cam path 2111, described the second grooved cam 212 is provided with the second cam path 2121, one end of described first clutch connecting rod 310, first cam path 2111 that is slidingly connected, an end of second clutch connecting rod 320 second cam path 2121 that is slidingly connected.
The first cam path 2111 is identical with the second cam path 2121 shapes, comprises that all base circle portion 21 differs 180 ° with the phase angle of flange portion 22, the first cam paths 2111 and the second cam path 2121.
When being in the top of flange portion for one in first clutch connecting rod 310 and the second clutch connecting rod 320, another one is in base circle portion, the clutch linkage 300 that is in the top of flange portion drives clutch separation, and another one then keeps the bonding state of clutch.In like manner, after worm gear 200 Rotate 180s °, these two clutch linkage status are just in time opposite, and are also opposite with this state of controlling clutch.Under such back and forth movement, clutch linkage 300 is realized the combination of two clutches-separately-in conjunction with-do action that separates with dynamic clutch.
The below introduces gear shift fork connecting rod 700 in detail for transmission gear interlock and the control procedure of separating.
Because screw mandrel 400 is fixed on the worm gear 200, therefore, in the solenoidoperated cluthes opening and closing movement, screw mandrel 400 is along with worm gear 200 synchronous rotaries; Because cam flange 600 is fixed on the described feed screw nut 500, and the center line of cam flange 600 is parallel with feed screw nut 500 center line, so it is in axial direction mobile that the rotation of screw mandrel 400 drives feed screw nut 500, i.e. it is in axial direction mobile that the rotation of screw mandrel 400 drives cam flange 600.
The shape of cam flange 600 is " S " type, be divided into upper and lower two sections along screw mandrel 400 axis, gear shift fork connecting rod 700 slides at cam flange 600, and along with the variation of cam flange 600 profiles, and so that the interlock that different gear shift fork connecting rods 700 moves up and down to control transmission gear with separate, controlled the gear of speed changer.What the present embodiment adopted is 5 gear speed changes, so 6 gear shift fork connecting rods 700 are arranged.In like manner, for different speed changers, can take the gear shift fork connecting rod of different numbers, but the basic principle of design all is identical.
The utility model embodiment's automatic gear shift apparatus by the folding of clutch linkage solenoidoperated cluthes, simultaneously by the gear of gear shift fork connecting rod control speed changer, has finally been realized the automatic gear change function of automobile, and the cost of this device is low, manufacture difficulty is little.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. an automatic gear shift apparatus is characterized in that, comprising:
Drive motor;
Worm screw, described drive motor drives worm screw;
Worm gear, described worm gear cooperates described worm screw, and described worm gear side is provided with grooved cam;
Clutch linkage, the described clutch linkage described grooved cam that is slidingly connected;
Screw mandrel, described screw mandrel is fixedly connected with described worm gear;
The feed screw nut, described feed screw nut is rotationally connected described screw mandrel;
Cam flange, described cam flange are fixed on the described feed screw nut;
Gear shift fork connecting rod, described gear shift fork connecting rod cooperates described cam flange.
2. a kind of automatic gear shift apparatus according to claim 1 is characterized in that, described drive motor is actuating motor or stepper motor.
3. a kind of automatic gear shift apparatus according to claim 1 is characterized in that, the rotation center of the described reference circle of wormwheel center of circle and grooved cam is identical.
4. a kind of automatic gear shift apparatus according to claim 1 is characterized in that, described grooved cam is provided with cam path, an end of the described clutch linkage cam path that is slidingly connected.
5. a kind of automatic gear shift apparatus according to claim 1 is characterized in that, the center line of described cam flange is parallel with feed screw nut's center line.
6. a kind of automatic gear shift apparatus according to claim 1 is characterized in that, clutch linkage comprises first clutch connecting rod and second clutch connecting rod; Respectively be provided with a grooved cam on the described worm gear bi-side, be respectively the first grooved cam and the second grooved cam, the phase angle of described the first grooved cam and the second grooved cam differs 180 °; Described first clutch connecting rod cooperates the first grooved cam, and the second clutch connecting rod cooperates the second grooved cam.
7. a kind of automatic gear shift apparatus according to claim 6, it is characterized in that, described the first grooved cam is provided with the first cam path, described the second grooved cam is provided with the second cam path, one end of described first clutch connecting rod, first cam path that is slidingly connected, an end of second clutch connecting rod second cam path that is slidingly connected.
8. a kind of automatic gear shift apparatus according to claim 6 is characterized in that, the phase angle of described the first cam path and the second cam path differs 180 °.
9. a kind of automatic gear shift apparatus according to claim 1 is characterized in that, cam flange (600) be " S " type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304424 CN202708032U (en) | 2012-06-27 | 2012-06-27 | Automatic gear-shifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304424 CN202708032U (en) | 2012-06-27 | 2012-06-27 | Automatic gear-shifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708032U true CN202708032U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304424 Expired - Fee Related CN202708032U (en) | 2012-06-27 | 2012-06-27 | Automatic gear-shifting device |
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| CN (1) | CN202708032U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836175A (en) * | 2014-02-27 | 2014-06-04 | 上海中科深江电动车辆有限公司 | Gear shifting device for electric automobile and electric automobile |
| CN103939595A (en) * | 2014-04-11 | 2014-07-23 | 苏州紫荆清远新能源汽车技术有限公司 | Gear selecting and shifting execution mechanism of automatic transmission of wide vehicle |
| CN107044537A (en) * | 2016-02-05 | 2017-08-15 | 上海汽车集团股份有限公司 | Vehicle and its gearbox, mechanical manipulation mechanism |
| CN108131448A (en) * | 2018-02-09 | 2018-06-08 | 华北理工大学 | Electric vehicle Liang Dang gearbox shiftings executing agency |
| CN109268486A (en) * | 2018-11-30 | 2019-01-25 | 河南职业技术学院 | A kind of automotive electronics gearshift |
-
2012
- 2012-06-27 CN CN 201220304424 patent/CN202708032U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836175A (en) * | 2014-02-27 | 2014-06-04 | 上海中科深江电动车辆有限公司 | Gear shifting device for electric automobile and electric automobile |
| CN103836175B (en) * | 2014-02-27 | 2016-01-06 | 上海中科深江电动车辆有限公司 | Gearshift used for electric vehicle and electric vehicle |
| CN103939595A (en) * | 2014-04-11 | 2014-07-23 | 苏州紫荆清远新能源汽车技术有限公司 | Gear selecting and shifting execution mechanism of automatic transmission of wide vehicle |
| CN103939595B (en) * | 2014-04-11 | 2016-02-10 | 苏州紫荆清远新能源汽车技术有限公司 | A kind of expanded letter car shift-selecting and changing actuating mechanism for automatic speed transmission |
| CN107044537A (en) * | 2016-02-05 | 2017-08-15 | 上海汽车集团股份有限公司 | Vehicle and its gearbox, mechanical manipulation mechanism |
| CN108131448A (en) * | 2018-02-09 | 2018-06-08 | 华北理工大学 | Electric vehicle Liang Dang gearbox shiftings executing agency |
| CN109268486A (en) * | 2018-11-30 | 2019-01-25 | 河南职业技术学院 | A kind of automotive electronics gearshift |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20210627 |