CN209228961U - A kind of electric vehicles gearbox - Google Patents

Abstract

The utility model discloses a kind of electric vehicles gearboxes, by cabinet, input shaft, input shaft gear, speed change shaft gear, variable-speed shaft, helical gear, sliding jaw, high gear, duplicate gear, clutch, output shaft, low-speed gear, carrier gear and support shaft are constituted, by the position of the fixed input shaft of cabinet, when rotating input shaft, variable-speed shaft can be transmitted torque to by speed change shaft gear, variable-speed shaft is fixedly connected with helical gear, front and back relative motion between helical gear and sliding jaw is determined by helical gear rotation direction, sliding jaw engages with high gear then can be through duplicate gear and clutch by torque transfer output shaft, output shaft is transmitted torque to by duplicate gear and clutch again after axle gear speed change can be first passed through if sliding jaw engages with low-speed gear, it is fast come the rotation for changing output shaft to obtain the steering for changing input shaft The effect of degree.

Description

A kind of electric vehicles gearbox

Technical field

The engineering device technique field changed the utility model relates to parameter more particularly to a kind of electric vehicles gearbox,

Background technique

With the development of society and the demand of environmental protection trip, a kind of very environmentally friendly vehicles in electric vehicle seat have been got over Come in more entrance people's lives, electric vehicle needs adjustment speed in use, inputs tooth in current gearbox Wheel is engaged with transmission gear, is driven, is driven by a gear driving gear coaxially connected with transmission gear and two gear driving gear One gear driven gear and the rotation of second gear driven gear, spread out of, there are shift opportunitys later to realize and change the speed of motor The problem of tool transmission is complicated, is unfavorable for the crash change of speed of electric vehicle.

Utility model content

The purpose of this utility model is to provide one kind, it is intended to solve machine driving complexity when shift, be unfavorable for electric vehicle Crash change of speed the problem of.

To achieve the above object, the gearbox includes cabinet, input shaft, input shaft gear, speed change shaft gear, speed change Axis, helical gear, sliding jaw, high gear, duplicate gear, clutch, output shaft, low-speed gear, carrier gear and support shaft, institute Input shaft to be stated through the cabinet, and is connect with the body pivot, the input shaft gear is fixedly connected with the input shaft, The speed change shaft gear is connect with one end of the input shaft gear external toothing, the variable-speed shaft with the body pivot, and with Speed change shaft gear is fixedly connected, and the helical gear is fixedly connected with the variable-speed shaft, and is located at the front side of the speed change shaft gear, There is kidney slot, the kidney slot and the helical gear internal messing, the high gear and the variable-speed shaft on the sliding jaw Clearance fit, and between the sliding jaw and the speed change shaft gear, there is the first protruding block, institute on the high gear The first protruding block is stated towards the side of the sliding jaw, and is cooperated with the kidney slot, the duplicate gear and the high speed tooth Take turns external toothing, the clutch and the duplicate gear contradict, and are enclosed by the duplicate gear, the output shaft and it is described from Clutch occlusion, and run through the clutch, and connect with the body pivot, the low-speed gear is another with the variable-speed shaft Splaying cooperation has on the low-speed gear the second protrusion fast, second protruding block towards the other side of the sliding jaw, And cooperate with the kidney slot, the carrier gear and the low-speed gear external toothing, and with the duplicate gear external toothing, institute Support shaft and the carrier gear clearance fit are stated, and is fixedly connected with the cabinet.

Wherein, the gearbox further includes input shaft coupling, and one end of the input shaft is connect with the body pivot, institute Input shaft coupling is stated to be fixedly connected with the other end of the input shaft.

Wherein, the input shaft coupling includes disk and rectangular block, and the disk is fixedly connected with the input shaft, described Rectangular block and the disk are integrally formed.

Wherein, there is matching hole, the matching hole is located at one end facing away from disk on the rectangular block.

Wherein, the gearbox further includes pendular ring and grip block, and the pendular ring is fixedly connected with the sliding jaw, and The sliding jaw is enclosed, the pendular ring has raised section, and the grip block is connect with the box body bolt, and is located at described The top of sliding jaw, the raised section are located at the opening inner side of the grip block.

Wherein, also there is circular groove, the circular groove and the pendular ring cooperate on the sliding jaw.

Wherein, the gearbox further includes baffle, and the quantity of the baffle is two, and all with the cabinet one at Type, two baffles are located at the two sides of the grip block, and contradict with the lateral wall of the grip block.

Wherein, the duplicate gear includes pinion stand, first gear and second gear, the pinion stand and the clutch It contradicts, and the clutch is enclosed, one end of the first gear and the pinion stand is integrally formed, and is located at the gear Seat outside, and be integrally formed with the high gear external toothing, the second gear and the other end of the pinion stand, and be located at The outside of the pinion stand, and with the carrier gear external toothing.

Wherein, the clutch is one-way clutch.

Wherein, the clutch limits the output shaft and can only rotate counterclockwise.

The gearbox of the utility model, by by cabinet, input shaft, input shaft gear, speed change shaft gear, variable-speed shaft, tiltedly Gear, sliding jaw, high gear, duplicate gear, clutch, output shaft, low-speed gear, carrier gear and support shaft are constituted, by The position of the fixed input shaft of the cabinet can be by torque transfer by the speed change shaft gear when rotating the input shaft To the variable-speed shaft, the variable-speed shaft is fixedly connected with the helical gear, the front and back between the helical gear and the sliding jaw Relative motion is determined that the sliding jaw engages with the high gear then can be through the duplex by the helical gear rotation direction Gear and the clutch, can be first through institutes if the sliding jaw engages with the low-speed gear by output shaft described in torque transfer The output shaft is transmitted torque to by the duplicate gear and the clutch again after stating carrier gear speed change, to be changed Become the steering of the input shaft to change the effect of the velocity of rotation of the output shaft.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of the utility model；

Fig. 3 is the internal structure chart of the utility model；

Fig. 4 is the input shaft of the utility model and the structural schematic diagram of input shaft coupling；

Fig. 5 is the carrier gear of the utility model and the structural schematic diagram of support shaft；

Fig. 6 is the enlarged drawing of the duplicate gear of the utility model；

Fig. 7 is the partial enlarged view of utility model.

In figure: 100- gearbox, 11- cabinet, 12- input shaft, 13- input shaft gear, 14- speed change shaft gear, 15- become Fast axis, 16- helical gear, 17- sliding jaw, 171- kidney slot, 172- circular groove, 18- high gear, the first protruding block of 181-, 19- Duplicate gear, 191- pinion stand, 192- first gear, 193- second gear, 20- clutch, 21- output shaft, 22- low speed tooth Wheel, the second protruding block of 221-, 23- carrier gear, 24- support shaft, 25- input shaft coupling, 251- disk, 252- rectangular block, 2521- matching hole, 26- pendular ring, the raised section 261-, 27- grip block, 28- baffle.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of utility model.In addition, the meaning of " plurality " is two or more in the description of the present invention, unless separately There is clearly specific restriction.

Fig. 1 to 3 is please referred to, the utility model provides a kind of electric vehicles gearbox, and the gearbox 100 includes case Body 11, input shaft 12, input shaft gear 13, speed change shaft gear 14, variable-speed shaft 15, helical gear 16, sliding jaw 17, high gear 18, duplicate gear 19, clutch 20, output shaft 21, low-speed gear 22, carrier gear 23 and support shaft 24, the input shaft 12 It being rotatablely connected through the cabinet 11, and with the cabinet 11, the input shaft gear 13 is fixedly connected with the input shaft 12, The speed change shaft gear 14 connects with 13 external toothing of input shaft gear, one end of the variable-speed shaft 15 and the cabinet 11 rotation It connects, and is fixedly connected with speed change shaft gear 14, the helical gear 16 is fixedly connected with the variable-speed shaft 15, and is located at the speed change The front side of shaft gear 14 has kidney slot 171, the kidney slot 171 and 16 internal messing of helical gear on the sliding jaw 17, The high gear 18 and 15 clearance fit of variable-speed shaft, and be located at the sliding jaw 17 and the speed change shaft gear 14 it Between, there is the first protruding block 181 on the high gear 18, first protruding block 181 towards the side of the sliding jaw 17, And cooperate with the kidney slot 171, the duplicate gear 19 and 18 external toothing of high gear, the clutch 20 with it is described Duplicate gear 19 contradicts, and is enclosed by the duplicate gear 19, and the output shaft 21 is engaged with the clutch 20, and runs through institute Clutch 20 is stated, and is rotatablely connected with the cabinet 11, another splaying of the low-speed gear 22 and the variable-speed shaft 15 is matched Close, have on the low-speed gear 22 second protrusion fast, second protruding block 221 towards the other side of the sliding jaw 17, And cooperate with the kidney slot 171, the carrier gear 23 and 22 external toothing of low-speed gear, and with the duplicate gear 19 External toothing, the support shaft 24 and 23 clearance fit of carrier gear, and be fixedly connected with the cabinet 11.

In the present embodiment, the quantity of the cabinet 11 is two pieces, and two pieces of 11 bilateral symmetries of cabinet are combined together, institute One end of output shaft 21 one piece of cabinet 11 therethrough is stated, is connect with motor output end, the other end of the output shaft 21 and institute The inner wall that the other end is embedded in another piece of cabinet 11 is stated, is rotatablely connected using bearing and the cabinet 11, when external motor is counterclockwise When rotation, and then the input shaft gear 13 of connection fixed thereto is driven to rotate counterclockwise, the speed change shaft gear 14 and institute 13 external toothing of input shaft gear is stated, two gear external toothings can be changed rotation direction, so the speed change shaft gear 14 can be suitable Hour hands rotation, and then the variable-speed shaft 15 of connection fixed thereto is driven to rotate clockwise, the helical gear 16 is located at the change The middle part of fast axis 15, the helical gear 16 are fixedly connected with the variable-speed shaft 15, and then the helical gear 16 is driven to rotate, described The sliding jaw 17 can be opposite to 18 1 Slideslip of high gear when rotating clockwise for helical gear 16, until the cunning Kidney slot 171 in pawl 17 is engaged by the first protruding block 181 on the high gear 18, and the high gear 18 will be by The sliding jaw 17 with rotating clockwise, and again before this state, match with 15 gap of variable-speed shaft by the high gear 18 It closes, opposite driving, the high gear 18 and 19 external toothing of duplicate gear is not generated, so 19 inverse time of the duplicate gear Needle rotation, the clutch 20 contradicts with the duplicate gear 19, is driven and rotate in same direction by the duplicate gear 19, described defeated Shaft 21 is engaged with the clutch 20, and be located at the clutch 20 inside, so the output shaft 21 with it is described from Clutch 20 rotates counterclockwise；When motor rotates clockwise, and then drive the input shaft gear 13 of connection fixed thereto suitable Hour hands rotation, the speed change shaft gear 14 and 13 external toothing of input shaft gear, the speed change shaft gear 14 can turn counterclockwise Dynamic, the variable-speed shaft 15 of connection fixed thereto can also rotate counterclockwise, and then drive the sliding jaw 17 to towards described low One Slideslip of fast gear 22, until institute on second protruding block 221 and the sliding jaw 17 on the low-speed gear 22 The engaging of kidney slot 171 is stated, and then drives and is rotated clockwise with the carrier gear 23 of 22 external toothing of low-speed gear, it is described The mode of low-speed gear 22 is smaller than the high gear 18, and then the rate relative to the high gear 18 transmitting is slow, and Before this state, the low-speed gear 22 and 15 clearance fit of variable-speed shaft do not generate opposite driving, the gap bridge tooth Wheel 23 plays the role of steering, and then the duplicate gear 19 is driven to rotate counterclockwise, finally again will by the clutch 20 Torque passes to the output shaft 21, and the output shaft 21 is driven to rotate counterclockwise, and the rotation direction of the output shaft 21 is not With the positive and negative of motor then it can change, so that the positive and negative rotation for obtaining motor always changes the velocity of rotation of the output shaft 21 Effect.

Further, the gearbox 100 further includes input shaft coupling 25, one end of the input shaft 12 and the cabinet 11 rotation connections, the input shaft coupling 25 are fixedly connected with the other end of the input shaft 12.In the implementation of present embodiment In example, the effect convenient for external motor connection can be obtained by the input shaft coupling 25.

Further, the input shaft coupling 25 include disk 251 and rectangular block 252, the disk 251 with it is described defeated Enter axis 12 to be fixedly connected, the rectangular block 252 is integrally formed with the disk 251.In the embodiment of present embodiment, pass through The disk 251 is connect with the input shaft 12, and then the rectangular block 252 is connect with external motor, is obtained compared to motor Output shaft 21 is fixedly connected with more firm fit system with columned connector, is conducive to the transmitting of torque.

Further, there is matching hole 2521, the matching hole 2521 is located at facing away from disk 251 on the rectangular block 252 One end.In the present embodiment, the matching hole 2521 can obtain the strong degree of increase and external motor cooperation.

Further, the gearbox 100 further includes pendular ring 26 and grip block 27, the pendular ring 26 and the cunning Pawl 17 is fixedly connected, and the sliding jaw 17 is enclosed, and the pendular ring 26 has a raised section 261, the grip block 27 with The cabinet 11 is bolted, and is located at the top of the sliding jaw 17, and the raised section 261 is located at opening for the grip block 27 On the inside of mouthful.In the embodiment of present embodiment, when the sliding jaw 17 slides back and forth relative to the helical gear 16, can also it produce A raw relative rotation radian, the pendular ring 26 are fixedly connected with the sliding jaw 17, also generate a relative rotation therewith Radian, the longest radian that the raised section 261 of 26 swivel becket of pendular ring can be swung by the limitation of the grip block 27, into And the sliding distance before and after the reverse limitation slip ring relative to the helical gear 16, to play the protection slip ring Collsion damage is not generated with the low-speed gear 22 and the high gear 18.

Further, also there is circular groove 172, the circular groove 172 cooperates with the pendular ring 26 on the sliding jaw 17. In the embodiment of present embodiment, can be obtained by the circular groove 172 prevents the pendular ring 26 relative to the sliding The effect that pawl 17 arbitrarily slides.

Further, the gearbox 100 further includes baffle 28, and the quantity of the baffle 28 is two, and all with it is described Cabinet 11 is integrally formed, and two baffles 28 are located at the two sides of the grip block 27, and the outside with the grip block 27 Wall contradicts.In the embodiment of present embodiment, the deformation for reducing the grip block 27 can be obtained by the baffle 28 Effect.

Further, the duplicate gear 19 includes pinion stand, first gear 192 and second gear 193, the pinion stand It is contradicted with the clutch 20, and the clutch 20 is enclosed, one end one of the first gear 192 and the pinion stand It is body formed, and be located on the outside of the pinion stand, and with 18 external toothing of high gear, the second gear 193 and the tooth The other end of wheel seat is integrally formed, and is located at the outside of the pinion stand, and with 23 external toothing of carrier gear.In this implementation It is integrally formed outer by the pinion stand and the first gear 192 and the second gear 193 in the embodiment of mode Shape can obtain the use for reducing material, when the first gear 192 is with 18 engaged transmission of high gear, Huo Zhesuo When stating 23 engaged transmission of second gear 193 and the carrier gear, pass through the first gear 192 and the second gear 193 Between groove, can collide to avoid with the sliding jaw 17.

Further, the clutch 20 is one-way clutch 20；The clutch 20 limits the output shaft 21 can only It rotates counterclockwise.It, can by using the one-way clutch 20 that restriction can only rotate counterclockwise in the embodiment of present embodiment With eliminate inner body generation lead to clockwise torque, avoid causing when the carrier gear 23 falls off Clockwise torque, the problem of leading to the destruction of entire electric vehicle internal mechanical transmission system.

Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this Novel interest field, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to Equivalent variations made by the utility model claims, still falls within the scope of the utility model.

Claims (10)

1. a kind of electric vehicles gearbox, which is characterized in that

The gearbox includes cabinet, input shaft, input shaft gear, speed change shaft gear, variable-speed shaft, helical gear, sliding jaw, high speed Gear, duplicate gear, clutch, output shaft, low-speed gear, carrier gear and support shaft, the input shaft run through the cabinet, And connect with the body pivot, the input shaft gear is fixedly connected with the input shaft, the speed change shaft gear with it is described Input shaft gear external toothing, the variable-speed shaft one end connect with the body pivot, and be fixedly connected with speed change shaft gear, institute It states helical gear to be fixedly connected with the variable-speed shaft, and is located at the front side of the speed change shaft gear, there is kidney-shaped on the sliding jaw Slot, the kidney slot and the helical gear internal messing, the high gear and the variable-speed shaft clearance fit, and it is located at the cunning Between pawl and the speed change shaft gear, there is the first protruding block, first protruding block is described on the high gear The side of sliding jaw, and cooperating with the kidney slot, the duplicate gear and the high gear external toothing, the clutch with The duplicate gear contradicts, and is enclosed by the duplicate gear, the output shaft and the clutch seizure, and through it is described from Clutch, and connect with the body pivot, the other end clearance fit of the low-speed gear and the variable-speed shaft, the low speed tooth Have the second protrusion fast on wheel, second protruding block cooperates towards the other side of the sliding jaw, and with the kidney slot, institute State carrier gear and the low-speed gear external toothing, and with the duplicate gear external toothing, the support shaft and the gap bridge tooth Clearance fit is taken turns, and is fixedly connected with the cabinet.

2. a kind of electric vehicles gearbox as described in claim 1, which is characterized in that the gearbox further includes input shaft Connector, one end of the input shaft are connect with the body pivot, and the other end of the input shaft coupling and the input shaft is solid Fixed connection.

3. a kind of electric vehicles gearbox as claimed in claim 2, which is characterized in that the input shaft coupling includes disk And rectangular block, the disk are fixedly connected with the input shaft, the rectangular block and the disk are integrally formed.

4. a kind of electric vehicles gearbox as claimed in claim 3, which is characterized in that have cooperation on the rectangular block Hole, the matching hole are located at one end facing away from disk.

5. a kind of electric vehicles gearbox as described in claim 1, which is characterized in that the gearbox further includes pendular ring And grip block, the pendular ring are fixedly connected with the sliding jaw, and the sliding jaw is enclosed, the pendular ring has protrusion Section, the grip block are connect with the box body bolt, and are located at the top of the sliding jaw, and the raised section is located at the clamping The opening inner side of plate.

6. a kind of electric vehicles gearbox as claimed in claim 5, which is characterized in that also have circle on the sliding jaw Slot, the circular groove and the pendular ring cooperate.

7. a kind of electric vehicles gearbox as claimed in claim 6, which is characterized in that the gearbox further includes baffle, The quantity of the baffle is two, and is all integrally formed with the cabinet that two baffles are located at the two of the grip block Side, and contradicted with the lateral wall of the grip block.

8. a kind of electric vehicles gearbox as described in claim 1, which is characterized in that the duplicate gear includes gear Seat, first gear and second gear, the pinion stand and the clutch contradict, and the clutch are enclosed, described first One end of gear and the pinion stand is integrally formed, and is located on the outside of the pinion stand, and with the high gear external toothing, institute The other end for stating second gear and the pinion stand is integrally formed, and is located at the outside of the pinion stand, and with the gap bridge tooth Take turns external toothing.

9. a kind of electric vehicles gearbox as described in claim 1, which is characterized in that the clutch is one-way clutch Device.

10. a kind of electric vehicles gearbox as claimed in claim 9, which is characterized in that the clutch limitation is described defeated Shaft can only rotate counterclockwise.