CN201875115U

CN201875115U - Second gear reducer assembly automatic gear shifting executing mechanism for electric vehicle

Info

Publication number: CN201875115U
Application number: CN2010202635232U
Authority: CN
Inventors: 袁建国; 栾奥天; 乔贺
Original assignee: ZHEJIANG ZOMAX AUTO TRANSMISSION CO Ltd
Current assignee: ZHEJIANG ZOMAX TRANSMISSION CO., LTD.
Priority date: 2010-07-20
Filing date: 2010-07-20
Publication date: 2011-06-22
Anticipated expiration: 2020-07-20

Abstract

The utility model provides a second gear reducer assembly automatic gear shifting executing mechanism for an electric vehicle, comprising a box body and a gear shifting fork shaft, the gear shifting fork shaft is provided with a gear shifting shift fork, the gear shifting shift fork is connected with a gear shifting driving lever, the automatic gear shifting executing mechanism is characterized in that: the gear shifting driving lever is disposed in the box body, one end of the gear shifting driving lever is a fan-shaped gear, the fan-shaped gear is engaged with a driving gear erected in the box body, the automatic gear shifting executing mechanism also comprises a gear shifting worm gear coaxial with the driving gear, the gear shifting worm gear is engaged with a worm, the worm is fixedly connected with an output shaft of a driving motor, the driving motor is in an electric connection with an externally electric control unit. An angle transducer is provided and disposed at a position on the box body corresponding to the gear shifting worm gear, the angle transducer is in an electric connection with the external electric control unit. The executing mechanism is advantaged by simple structure, capability of automatically selecting the optimum gear to drive according to practical road conditions, reduction of labor intensity during operation by drivers, as well as improvement of safe driving.

Description

Electric vehicle second gear speed reducer assembly automaitc shfit actuator

Technical field

The utility model relates to a kind of used for electric vehicle Effector, particularly a kind of electric motor car second gear speed reducer assembly automaitc shfit actuator that is applicable to.

Background technique

The continuous deterioration of world environments and the continuous approach exhaustion of oil provide a good development opportunity for the Application and Development of electric vehicle.No matter from energy-conserving and environment-protective, economical and practical, security maintenance equal angles, electric motor car is broad market prospect all, and this also provides a more wide space for the application development of the automaitc shfit speed reducer assembly that is used for electric motor car.

Summary of the invention

The utility model provides a kind of electric vehicle second gear speed reducer assembly automaitc shfit actuator, and purpose is to solve the prior art problem, and a kind of simple in structure, actuator that can automaitc shfit is provided.

The utility model technological scheme that adopts of dealing with problems is:

Electric vehicle second gear speed reducer assembly automaitc shfit actuator, has casing, also has the gear shift fork shaft, the gear shift fork shaft is provided with reverse shift fork, reverse shift fork is connected with shift lever, shift lever is located in the casing, one end of shift lever is a tooth sector, tooth sector and the actuation gear engagement that is erected in the casing, have the gear shift worm gear coaxial with actuation gear, gear shift worm gear and a worm meshing, described worm screw is fixed on the output shaft of a drive motor, and drive motor is electrically connected with outside ECU (Electrical Control Unit).

Have angle transducer and be located on the box location corresponding with the gear shift worm gear, angle transducer is electrically connected with outside ECU (Electrical Control Unit).

The beneficial effects of the utility model:

1, adopt Worm and worm-wheel gearing, have compact structure, velocity ratio is big, stable drive, vibration, the advantage that impact is little and noise is low;

2, the use of angle transducer can more accurate control gearshift procedure, makes gearshift procedure more steadily, fast;

3, whole gearshift mechanism compact structure is controlled more convenient, quick.

Description of drawings

Fig. 1 is a plan view of the present utility model;

Fig. 2 is a right elevation of the present utility model

Description of symbols among the figure:

The 1-casing; 2-gear shift worm gear;

The 3-tooth sector; 4-gear shift fork shaft;

The 5-reverse shift fork; The 7-worm screw;

The 8-drive motor; The 9-angle transducer;

The 10-actuation gear; The 11-shift lever;

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

As Fig. 1, electric vehicle second gear speed reducer assembly automaitc shfit actuator shown in Fig. 2, has casing 1, also has gear shift fork shaft 4, gear shift fork shaft 4 is provided with reverse shift fork 5, reverse shift fork 5 is connected with shift lever 11, shift lever 11 is located in the casing 1, one end of shift lever 11 is a tooth sector 3, tooth sector 3 and actuation gear 10 engagements that are erected in the casing 1, have the gear shift worm gear 2 coaxial with actuation gear 10, gear shift worm gear 2 and a worm screw 7 engagements, described worm screw 7 is fixed on the output shaft of a drive motor 8, and drive motor 8 is electrically connected with outside ECU (Electrical Control Unit).

Have angle transducer 9 and be located on casing 1 position corresponding with gear shift worm gear 2, angle transducer 9 is electrically connected with outside ECU (Electrical Control Unit).

One-level is slowed down: drive motor 8 receives the signal of outside ECU (Electrical Control Unit) (ECU) transmission, driving worm screw 7 rotates counterclockwise, at this moment, the gear shift worm gear 2 that is meshed with worm screw 7 clockwise rotates, the rotation of gear shift worm gear 2 drives clockwise rotating of the actuation gear 10 coaxial with it, thereby driving tooth sector 3 tops rotates counterclockwise, while tooth sector 3 the other end shift levers 11 drive reverse shift forks 5 straight line to the right move, stir synchronizer gear sleeve at last and move right, the one-level of finishing retarder is slowed down.

Double reduction: drive motor 8 receives the signal of outside ECU (Electrical Control Unit) (ECU) transmission, driving worm screw 7 clockwise rotates, at this moment, the gear shift worm gear 2 that is meshed with worm screw 7 rotates counterclockwise, the rotation of gear shift worm gear 2 drives rotating counterclockwise of the actuation gear 10 coaxial with it, thereby driving tooth sector 3 tops clockwise rotates, while tooth sector 3 the other end shift levers 11 drive reverse shift forks 5 straight line left move, stir synchronizer gear sleeve at last and be moved to the left, finish the double reduction of retarder.

After reverse shift fork 5 is finished required gear shift distance, tooth sector 3 stops operating, simultaneously gear shift worm gear 2 is transferred to angle transducer 9 with this stop signal, angle transducer 9 is transferred to drive motor 8 by outside ECU (Electrical Control Unit) (ECU) with this signal, then drive motor 8 stops operating, and whole gearshift mechanism quits work.

Above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model 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 the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.

This electric motor car second gear speed reducer assembly automaitc shfit actuator adopts Worm and worm-wheel gearing, has compact structure, and velocity ratio is big, stable drive, vibration, the advantage that impact is little and noise is low.The use of angle transducer can more accurate control gearshift procedure, makes gearshift procedure more steadily, fast.Whole gearshift mechanism compact structure is controlled more convenient, quick.

Entire mechanism can be eliminated the difference on the driver's operation technical ability, can select only gear to travel automatically according to actual road conditions condition, and the labor intensity when alleviating driver's operation improves safety traffic.In automobile running, the driver only need control accelerator pedal (gas pedal), just can control the gear that travels of retarder automatically, thereby the travelling speed of Control of Automobile, the more effective like this utilization efficiency that improves electric power, significantly increase electric motor car continuation of the journey mileage, reduce the charging frequency, the working life of having improved battery.

Claims

1. electric vehicle second gear speed reducer assembly automaitc shfit actuator, has casing (1), also has gear shift fork shaft (4), gear shift fork shaft (4) is provided with reverse shift fork (5), reverse shift fork (5) is connected with shift lever (11), it is characterized in that: shift lever (11) is located in the casing (1), one end of shift lever (11) is tooth sector (3), tooth sector (3) and actuation gear (10) engagement that is erected in the casing (1), have the gear shift worm gear (2) coaxial with actuation gear (10), gear shift worm gear (2) and a worm screw (7) engagement, described worm screw (7) is fixed on the output shaft of a drive motor (8), and drive motor (8) is electrically connected with outside ECU (Electrical Control Unit).

2. electric vehicle second gear speed reducer assembly automaitc shfit according to claim 1 actuator, it is characterized in that: have angle transducer (9) and be located on casing (1) position corresponding with gear shift worm gear (2), angle transducer (9) is electrically connected with outside ECU (Electrical Control Unit).