CN102661364A

CN102661364A - Speed changer with silicon magnet on electric vehicle

Info

Publication number: CN102661364A
Application number: CN2012101585206A
Authority: CN
Inventors: 邢绍东
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-21
Filing date: 2012-05-21
Publication date: 2012-09-12

Abstract

The invention relates to a speed changer with a silicon magnet on an electric vehicle. A motor and a shaft sleeve are arranged on a shaft, an inner gear ring of a planetary gear is hollowly sheathed on the shaft sleeve, three outer gears of the planetary gear are fixedly arranged at one side of a wheel disc, the other side is fixedly provided four connecting rods which mutually form 90 degrees, external screw threads are arranged on the connecting rods, a center gear fixedly arranged at one side of a center gear transmission disc passes through a center hole of the wheel disc and is engaged with the three outer gears, the transmission disc is hollowly sheathed on the shaft sleeve, a spline short shaft is fixed on the shaft sleeve through splines, a crossed pulling fork is sheathed on the spline short shaft, one side of the crossed pulling fork is fixedly provided with a permanent magnet, an end cover is sheathed on the spline short shaft, one side of the end cover is fixed with a silicon magnet and is fixed with a bearing, the end cover is connected with the connecting rods, the spline short shaft is axially fixed by a spring clamp, and different part speed changers are driven to realize two gears through the crossed pulling fork position change realized through the two magnetic pole change of the two magnets. The speed changer has the advantages that the speed change is fast, the speed changer is suitable for various kinds of road conditions, the sliding is easy, fast and stable, the torque is great, the electricity consumption is low, the continuing time is long, the service life is long, and the cost is low.

Description

The speed changer that has silicon magnet in the electric motor car

Technical field

The present invention relates to a kind of electric vehicle speed changer, have the speed changer of silicon magnet in particularly a kind of fast, little power consumption of shifting gears, the life-span is long and cost the is low electric motor car.

Background technique

At present, the high-speed electric expreess locomotives that adopt add gear reducer as speed changer more on the market, have strengthened moment of torsion though gear-driven speed ratio can slow down, and the fast life-span of the gear wear that runs up for a long time is short, and scrappage is high, has strengthened cost, and power consumption is big.

Summary of the invention

The present invention provides the speed changer that has silicon magnet in a kind of fast, little power consumption of shifting gears, the life-span is long and cost the is low electric motor car for solving the technical problem that exists in the known technology.

The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: it comprises motor, axle, planetary pinion and bearing, it is characterized in that: be fixed with motor and be set with axle sleeve on the described axle, described planetary ring gear sky is enclosed within on the axle sleeve; Planetary three external gears are fixed on a side of wheel disc through little axle; The another side of wheel disc is fixed with four connecting rods that are mutually 90 °, and an end of every connecting rod all has outside thread, and the fixing central gear of described central gear drive plate one side passes center hole and three external gear engagements of wheel disc; The central gear transmission is circled or whirl in the air and is enclosed within on the axle sleeve; The spline minor axis is fixed on the axle sleeve through key, and the cross shift fork is enclosed within on the spline minor axis, and the countersunk head screw fixed permanent magnet is used in a side end face of cross shift fork; Described end cap sky is enclosed within on the spline minor axis; One side of end cap is silicon magnet fixedly, and rigid bearing between silicon magnet and the end cap has circular hole around the end cap; Pass connecting rod and fix, described spline minor axis is used the spring clip axial restraint.

The present invention can also adopt following technological scheme:

Described planetary three external gears are mutually 120 °;

Described central gear drive plate one side fixed center gear, opposite side is fixed with the A cylindrical bump that is mutually 90 °;

Its inboard of described end cap is fixed with the B cylindrical bump that is mutually 90 °;

Described electromagnet is connected with the both positive and negative polarity lead.

Advantage and good effect that the present invention has are: two grades alternately speed change is fast and accurate, is fit to various road conditions, slides brisk and steady; Moment of torsion is big, little power consumption, and about 30%-40% economizes on electricity; Continuous journey is long, and the life-span is long, and cost is low; Applied range can be used for electric bicycle, electro-tricycle, electrocar and electronic big bus car.

Description of drawings

Fig. 1 is an overall structure schematic representation of the present invention;

Fig. 2 is the structural representation of central gear drive plate;

Fig. 3 is the structural representation of spline minor axis;

Fig. 4 is the structural representation of cross shift fork;

Fig. 5 is the structural representation of end cap.

Among Fig. 1-Fig. 5: 1. spool, 2. motor, 3. axle sleeve, 4. ring gear,

5. external gear, 6. wheel disc, 7. connecting rod, 8. central gear drive plate, 9. spline minor axis, 10. key, 11. cross shift forks, 12. permanent magnets, 13. end caps, 14. silicon magnet, 15. bearings,

16. the A cylindrical bump, 17.B cylindrical bump, 18. spring clips.

Embodiment

For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:

As shown in Figure 1: be fixed with the axle sleeve 3 of motor 2 and empty cover on the axle 1, described planetary ring gear 4 skies are enclosed within on the axle sleeve 3, and planetary three external gears 5 that are mutually 120 ° are through a little side that is fixed on wheel disc 6; Another side of wheel disc 6 is fixed with four connecting rods 7 that are mutually 90 °, and an end of every connecting rod 7 all has outside thread, and is as shown in Figure 2: the fixing central gear of described central gear drive plate 8 one sides passes center hole and three external gear 5 engagements of wheel disc 6; The opposite side of central gear drive plate 8 is fixed with the A cylindrical bump 16 that is mutually 90 °; Central gear drive plate 8 skies are enclosed within on the axle sleeve 3, and spline minor axis 9 as shown in Figure 3 is fixed on the axle sleeve 3 through key 10; The cross shift fork 11 that has the cross pusher dog as shown in Figure 4 is enclosed within on the spline minor axis 9; Useful countersunk head screw fixed permanent magnet 12 on one side end face of cross shift fork 11, as shown in Figure 5: described end cap 13 skies are enclosed within on the spline minor axis 9, and a side of end cap 13 is with countersink head screw fixed electromagnet 14; Rigid bearing 15 between electromagnet 14 and the end cap 13; Electromagnet 14 is connected with the both positive and negative polarity lead, has circular hole around the end cap 13, and it is fixing to pass connecting rod 7; End cap 13 its inboards are fixed with the B cylindrical bump 17 that is mutually 90 °, described spline minor axis 9 usefulness spring clips 18 axial restraints.

During use, after the both positive and negative polarity of electromagnet 14 leads changes, the N on the N on the electromagnet 14, the S utmost point and the permanent magnet 12, when S is opposite; Utilize principle of opposite sex attraction, the electromagnet 14 on the end cap 13 inhales permanent magnet 12 to end cap 13, under this state; In motor when rotation, drive axle sleeve 3 rotations, and the key 10 on the axle sleeve 3 drives cross shift fork 11 pusher dog on it and stirs B cylindrical bump 17 and rotate; Meanwhile, end cap 13, connecting rod 7 and wheel disc 6 rotations, at this moment; The speed synchronization of electric motor car rotational speed and motor 2 is a first gear speed, in the situation lower planetary gear transmission transfixion of first gear speed; When needs changed second speed into: the cathode and anode directions of conversion electromagnet 14 leads made N, the S utmost point on the electromagnet 14 change direction, at this moment; Because of N, the S utmost point on electromagnet 14 and the permanent magnet 12 repel each other in the same way, electromagnet 14 will be pushed open by permanent magnet 12, makes the cross shift fork 11 that is fixed with permanent magnet 12 be pushed to central gear drive plate 8 one sides; During the motor rotation, drive axle sleeve 3 rotations, the pusher dog that the key 10 on the axle sleeve 3 drives on the cross shift fork 11 is stirred A cylindrical bump 16; Make 8 rotations of central gear drive plate; Thereby make and three external gears of central gear planet gear meshed 5 rotation, three external gears 5 have driven connecting rod 7 when when central gear rotate, having driven wheel disc 6 rotations, because four connecting rods 7 are to be fixed on the hub for vehicle wheel of the electric motor car of walking; Electric motor car rotates thereupon; The speed of the rotational speed of electric motor car and motor 2 is asynchronous, and the speed of motor 2 is slowed down after through the planetary pinion transmission, reaches the increase twisting force; At this moment, the speed of travel of electric motor car is a second gear.

Its advantage is: two grades alternately speed change is fast and accurate, is fit to various road conditions, slides brisk and steady; Moment of torsion is big, and little power consumption economizes on electricity about 30%-40%; Continuous journey is long, and the life-span is long, and cost is low; Applied range can be used for electric bicycle, electro-tricycle, electrocar and electronic big bus car, can climb more than 30 °.

Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that those of ordinary skills make technological scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims

1. have the speed changer of silicon magnet in the electric motor car, it comprises motor, axle, planetary pinion and bearing, it is characterized in that: be fixed with motor (2) and be set with axle sleeve (3) on the described axle (1); Described planetary ring gear (4) sky is enclosed within on the axle sleeve (3), and planetary three external gears (5) are through a little side that is fixed on wheel disc (6), and the another side of wheel disc (6) is fixed with four connecting rods (7) that are mutually 90 °; One end of every connecting rod (7) all has outside thread; The fixing central gear of described central gear drive plate (8) one sides passes center hole and three external gears (5) engagement of wheel disc (6), and central gear drive plate (8) sky is enclosed within on the axle sleeve (3), and spline minor axis (9) is fixed on the axle sleeve (3) through key (10); Cross shift fork (11) is enclosed within on the spline minor axis (9); One side end face of cross shift fork (11) is with countersunk head screw fixed permanent magnet (12), and described end cap (13) sky is enclosed within on the spline minor axis (9), and a side of end cap (13) is silicon magnet (14) fixedly; Rigid bearing (15) between silicon magnet (14) and the end cap (13); Have circular hole around the end cap (13), it is fixing to pass connecting rod (7), and described spline minor axis (9) is with spring clip (18) axial restraint.

2. have the speed changer of silicon magnet in the electric motor car according to claim 1, it is characterized in that: described planetary three external gears (5) are mutually 120 °.

3. have the speed changer of silicon magnet in the electric motor car according to claim 1, it is characterized in that: described central gear drive plate (8) one side fixed center gears, opposite side is fixed with the A cylindrical bump (16) that is mutually 90 °.

4. have the speed changer of silicon magnet in the electric motor car according to claim 1, it is characterized in that: its inboard of described end cap (13) is fixed with the B cylindrical bump (17) that is mutually 90 °.

5. have the speed changer of silicon magnet in the electric motor car according to claim 1, it is characterized in that: described silicon magnet (14) is connected with the both positive and negative polarity lead.