CN201156685Y

CN201156685Y - Single motor driving electric actuator with double output shaft

Info

Publication number: CN201156685Y
Application number: CNU2008200283246U
Authority: CN
Inventors: 高宗昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-23
Filing date: 2008-01-23
Publication date: 2008-11-26
Anticipated expiration: 2018-01-23

Abstract

The utility model relates to an electric actuator having double output shafts and driven by a single motor. The structured of the electric actuator is characterized in that a motor 1 drives a middle shaft 23 to rotate in double directions by a reduction gearbox and an electromagnetic clutch 5. The middle shaft is a drive shaft; a left shaft and a right shaft are driven shafts; the parts like a left gear 31, a right gear 12, a left transmission disk 29, a right transmission disk 14, a left drive pin 30 and a right drive pin 13 on the two shafts are all symmetrically arranged and connected by taking the middle shaft as an axle center; the tail end is provided with a left angle sensor 33 and a right angle sensor 3 to get respective rotating angle signals. The electric actuator is used for the automatic control and realizes to use one motor to drive two respectively controlled electric actuators. The electric actuator has the advantages of simple structure and low cost.

Description

The electric actuator of driving twin-output axle by single motor

(1), technical field:

The utility model relates to a kind of electric actuator that adopts driving twin-output axle by single motor.Be used for Position Control, angle control, belong to the automatic control technology field.

(2), background technology:

Present electric actuator all is output shaft of a motor-driven, implements controlling an axle; For example automobile, motorcycle automatic pilot be exactly with separately independently actuator handle respectively control vehicle throttle, braking, clutch and variable block; Both having made is the vehicle that this class of automatic catch automobile, stepless speed-change motorcycle and LEV (Light Electric Vehicle) need not " variable block " and " clutch " driver behavior, also with two independently actuator come operating and controlling vehicle to quicken and brake.

The shortcoming of above-mentioned prior art is that the quantity of electric actuator is many, and volume is big, the manufacturing cost height, and the competitiveness of product in market is not strong.

(3), summary of the invention:

Goal of the invention of the present utility model is to release both advantages of simple of a kind of structure at above-mentioned the deficiencies in the prior art, and it is low to manufacture cost, the electric actuator of safe and reliable, economical and practical single-motor drive double-shaft output.

Finishing the technical scheme that the foregoing invention purpose adopted is:

It comprises that (as Fig. 1) installs motor 1, reduction box 2, clutch 5 and the jack shaft 23 that connects successively; On dividing plate 19 and the median septum 9, middle gear 10 was fixed on the jack shaft 23 before installed respectively the front-end and back-end of jack shaft 23, left axle 24, right axle 22, and placed between preceding dividing plate 19 and the median septum 9.Left side axle 24, the symmetrical respectively both sides that are loaded on jack shaft 23 of right axle 22.Left side shaft angle degree transducer 33, right shaft angle degree transducer 3 are contained on the rear bulkhead 4, and join with left side axle 24, right axle 22 by Left-wing Federation's axial organ 32, right shaft coupling 6 respectively.Left gear 31 on middle gear 10 and the left side axle 24 and the right gear 12 on the right axle 22 are meshed, and correspondence is equipped with left driving pin 30, right driving pin 13 respectively on left gear 31 and right gear 12.Correspondence has been installed Left Drive dish 29, right drive plate 14 respectively on left side axle 24, right axle 22, and before placing between dividing plate 19 and the median septum 9, on Left Drive dish 29, the right drive plate 14 respectively correspondence a left side is installed by untie-sell 28, right by untie-sell 15.Disc spring 26 two ends, a left side are hung in a left side by on the left steady pin 25 on untie-sell 28 and the preceding dividing plate 19, and right disc spring 17 two ends are hung in right by on the right steady pin 18 on untie-sell 15 and the preceding dividing plate 19.

It is on the same radius in axle center that the utility model left side is positioned at left side axle 24 by untie-sell 28 and left driving pin 30, and right to be positioned at right axle 22 by untie-sell 15 and right driving pin 13 be on the same radius in axle center.

Compared with prior art the utility model has the advantages that conspicuous: it has changed the traditional design that output shaft enforcement of motor-driven of existing electric actuator is controlled an axle, adopt a motor to drive two angle actuators respectively, reach simplified structure, reduced the purpose of manufacturing cost, in market competition, had an outstanding price function advantage.Because the many controlling object that need control respectively but not need to move are simultaneously arranged in the production practices.For example the accelerator pedal of automobile and brake pedal can not stepped on simultaneously, the speed control knob of motorcycle and electric bicycle and Brake handle do not need to work simultaneously yet, so the design of two shared motors of actuator makes structure of the present utility model more become reasonable.Next is that performance is safe and reliable.Referring to Fig. 5, when the electromagnetic clutch outage separated, under the effect of two disc springs, left and right axle always reset to zero-bit.Referring to Fig. 2, as when jack shaft when zero-bit rotates counterclockwise, right axle is pushed and clockwise rotates, left side axle is motionless.When jack shaft clockwise direction zero-bit was returned, counterclockwise to zero reset, this moment, right corner was limited by the right driving pin on the right gear to right axle under the disc spring effect, and therefore right axle is synchronous with the right gear corner all the time.In like manner, when jack shaft when zero-bit clockwise rotates, left side axle is pushed and rotates counterclockwise, right axle is motionless.When jack shaft counterclockwise when zero-bit is returned, left side axle clockwise direction zero reset under the restriction of disc spring effect and left driving pin, and synchronous with left gear.Referring to Fig. 4, if right drive plate clockwise rotates near 360 °, right limit pin 16 will be run into by untie-sell 15 in the right side, so the angle range of left and right axle is all less than 360 °.Thereby make fail safe that guarantee arranged.

(4), description of drawings:

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 is the A-A cut-away illustration of Fig. 1;

Fig. 3 is that Fig. 2 is at rotation alpha horn shape attitude schematic diagram;

Fig. 4 dissects left and

right spacer pin

27,16 and frame 41 attaching schematic diagrames on the basis at Figure 1B-B;

Fig. 5 dissects left and

right spacer pin

27,16 and frame 41 attaching schematic diagrames on the basis at Fig. 1 C-C;

Fig. 6 is used for the embodiment schematic diagram of motorcycle and electric vehicle and bicycle automatic pilot for the utility model;

Fig. 7 is the D-D cross-sectional schematic of Fig. 6;

Fig. 8 is used for automatic driving instrument embodiment schematic diagram for the utility model.

Wherein: the right shaft coupling 7 of the right shaft angle degree of 1-motor 2-reduction box 3-transducer 4-rear bulkhead 5-electromagnetic clutch 6-, 21-bearing

cap

8,11, the right drive plate 15-of the right driving pin 14-of the 20-bearing 9-median septum 10-middle gear 12-right gear 13-right side by the right steady pin 19-of the right disc spring 18-of untie-sell 16-right limit pin 17-before a disc spring 27-left limit pin 28-left side, a steady pin 26-left side, an axle 25-left side, the right axle of a dividing plate 22-23-jack shaft 24-left side by the right output gear of the driving pin 31-left gear 32-axial organ 33-of a Left-wing Federation left side, untie-sell 29-Left Drive dish 30-left side shaft angle degree transducer 34-spline housing 35-splined shaft 36-sheave 37-drag-line overcoat 38-drag-line heart yearn 39-right tooth bar 40-left side tooth bar 41-frame 42-left side output gear 43-.

(5), embodiment:

This specification third part and in conjunction with the accompanying drawings 1-5 provided concrete complete technology implementation scheme and the mode of the utility model, so no longer repetition here.Below in conjunction with accompanying drawing design feature of the present utility model and action principle are described further: referring to Fig. 1, motor 1 drives jack shaft 23 two-way rotations by reduction box 2 and electromagnetic clutch 5.Jack shaft is a driving shaft, and left and right axle is a driven axle, and the parts on the diaxon are that the axle center distributes symmetrically with the jack shaft, and tail end connection angle transducer can obtain angular signal separately, is used for measuring and control.The

gear

31 and 12 engagements of bearing assembly are housed on middle gear of fixing on the jack shaft 10 and the left and right axle, when jack shaft rotates, drive left gear and right gear to rotate synchronously with the jack shaft rightabout.

As Fig. 2,3, when right gear 12 when the zero-bit clockwise direction turns over an angle [alpha], right driving pin 13 promotes rightly to be turned over identical angle by untie-sell 15, right drive plate 14 and right axle 22.Though left gear is also in synchronous rotation, left driving pin 30 leaves a left side by untie-sell 28, can not promote left side axle and rotate, and simultaneously because the left side on the Left Drive dish 29 is being kept off by left limit pin 27 by untie-sell 28, therefore left side axle is motionless.In like manner, when left gear 31 when zero-bit is counterclockwise rotated, left driving pin 30 promote a left side by untie-sell 28, Left Drive dish 29 and left side axle 24 with identical angular turn, right axle can not be pushed.

Fig. 5 shows that right disc spring 17 two ends are hung in the right side by on the right steady pin 18 on untie-sell 15 and the preceding dividing plate 19, counterclockwise rotates at disc spring effect bottom right axial force diagram, and in Fig. 1 position, the right right limit pin 16 that is fixed on the frame 41 by untie-sell 15 blocks; In like manner left side axle is gone up and is blocked the zero-bit of entire mechanism that Here it is by untie-sell 28 by left limit pin 27.

The utility model is widely used in production, the test control automatically of every profession and trade.Below enumerate application example of the present utility model:

Example 1: be used for motorcycle, LEV (Light Electric Vehicle) automatic pilot, referring to Fig. 6.

On the right axle 22 of actuator spline housing 34 is installed, links to each other with speed control knob on the handlebar by splined shaft 35, in the time of need opening the throttle, motor 1 drives jack shaft 23 and rotates counterclockwise, right axle clockwise direction rotates, and drives speed control knob and rotates, and the aperture of open the throttle (electric switch) is quickened vehicle.The left side axle of actuator is installed a sheave 36, brake lever on the handlebar links with sheave with the drag-line heart yearn 38 that has drag-line overcoat 37, when the driven by motor jack shaft clockwise rotates, left side axle rotates counterclockwise, by drag-line pulling brake lever, strain brake lever as the driver, vehicle is carried out brake deceleration.Realize with Electric Machine Control speed and brake.

Example 2: be used for the automatic driving instrument, referring to Fig. 8.

On the front end shaft extension of left and right axle left output gear 42 and right output gear 43 are installed respectively, left tooth bar 40 and the right tooth bar 39 with both sides meshes respectively.When right axle clockwise rotated, right tooth bar moved downward; And when left side axle rotated counterclockwise, left tooth bar moved downward.Two toothed rack act on the accelerator pedal and the brake pedal of automobile respectively, and control throttle size and brake are strong and weak.Thereby realize with Electric Machine Control speed and brake.

When the power supply sudden power took place, the electromagnetic clutch outage separated, and under the effect of left and right two disc springs, two output shafts are got back to zero-bit rapidly, have guaranteed safety.

Claims

1, a kind of electric actuator of driving twin-output axle by single motor, it comprises installs motor (1), reduction box (2), clutch (5) and the jack shaft (23) that connects successively; It is characterized in that:

1.. install respectively on preceding dividing plate (19) and the median septum (9) front-end and back-end of jack shaft (23), left side axle (24), right axle (22), and middle gear (10) is fixed on the jack shaft (23), and places between preceding dividing plate (19) and the median septum (9);

2.. left side axle (24), right axle (22) are installed in the both sides of jack shaft (23) respectively, left side shaft angle degree transducer (33), right shaft angle degree transducer (3) are loaded on the rear bulkhead (4), and link with left side axle (24), right axle (22) by Left-wing Federation's axial organ (32), right shaft coupling (6) respectively;

3.. left gear (31) on middle gear (10) and the left side axle (24) and the right gear (12) on the right axle (22) mesh, and correspondence is equipped with left driving pin (30), right driving pin (13) respectively on left gear (31) and right gear (12);

4.. correspondence has been installed Left Drive dish (29), right drive plate (14) respectively on left side axle (24), right axle (22), and place between preceding dividing plate (19) and the median septum (9), on Left Drive dish (29), the right drive plate (14) respectively correspondence a left side has been installed by untie-sell (28), right by untie-sell (15);

5.. left disc spring (26) two ends are hung in a left side by on the left steady pin (25) on untie-sell (28) and the preceding dividing plate (19), and right disc spring (17) two ends are hung in right by on the right steady pin (18) on untie-sell (15) and the preceding dividing plate (19).

2, the electric actuator of driving twin-output axle by single motor according to claim 1 is characterized in that:

It is on the same radius in axle center that a left side driving pin (30) and a left side are positioned at left side axle (24) by untie-sell (28), and it is on the same radius in axle center that the right driving pin (13) and the right side are positioned at right axle (22) by untie-sell (15).