阅读说明：本技术 电动车变速器 (Electric vehicle transmission ) 是由 韦光珍 吴有智 张玉平 于 2019-08-23 设计创作，主要内容包括：本发明公开了电动车变速器,包括输出轴1、主减速主动齿2、输出轴二档从动齿3、输入轴二档主动齿4、输入轴5、二档接合齿6、换档齿套7、换档齿毂8、一倒档接合齿9、输入轴一档主动齿10和输出轴一档从动齿11,在这种两档电动车变速器的一档从动齿11和输出轴1之间,增加了单向离合器12和单向离合器内圈13。本发明在能够利用发动机的摩擦功来辅助制动、从而控制车速保证行车安全的前提下,车辆在行驶中需要换挡时,该机构可以实现不踏离合器踏板顺利换档,从而减轻汽车驾驶人的操作劳动强度、延长离合器的使用寿命、节约车辆的使用维修费用、同时还能增大车辆的爬坡能力、提高车辆的动力性。(The invention discloses electric vehicle transmissions, 7, gear shift tooth hub 8, one grade of a reverse gear soldered tooth 9, one grade of driving tooth 10 of input shaft and output shaft driven tooth 11 are covered including output shaft 1, main deceleration driving tooth 2, two grades of driven tooths 3 of output shaft, two grades of driving tooths 4 of input shaft, 5, two grades of soldered tooths 6 of input shaft, gear shift tooth, between the one grade of driven tooth 11 and output shaft 1 of this two grades of electric vehicle transmissions, one-way clutch 12 and one-way clutch inner ring 13 are increased.The present invention is under the premise of can utilize the frictional work of engine to carry out auxiliary braking, guarantee traffic safety to regulation speed, when vehicle needs to shift gears under steam, the mechanism may be implemented not step on the smooth gear shift of clutch pedal, to mitigate the operation labor intensity of motorist, the service life for extending clutch, the use and maintenance expense for saving vehicle while the climbing capacity that can also increase vehicle, the dynamic property for improving vehicle.)

1. a kind of electric vehicle transmission, including output shaft (1) and input shaft (5), it is characterised in that: one grade on input shaft (5) Driving tooth (10) and one grade of driven tooth (11) engagement, one grade of driven tooth (11) are mounted on output shaft by one-way clutch (12) (1) on, there is one grade of conjunction gear (9) in one grade of driven tooth (11) side, controls one grade of conjunction gear (9) by shift tooth set (7) and changes Whether gear tooth hub (8) is driven, and shift tooth hub (8) is mounted on output shaft (1).

2. electric vehicle transmission according to claim 1, it is characterised in that: two grades of driven tooths (3) are set on output shaft (1), Two grades of driving tooths (4) engagement on two grades of driven tooths (3) and input shaft (5), there are two grades of conjunction gears in two grades of driven tooth (3) sides (6), two grades of conjunction gears (6) are controlled by shift tooth set (7) and whether shift tooth hub (8) is driven.

3. electric vehicle transmission according to claim 2, it is characterised in that: main deceleration driving tooth (2) on output shaft (1) and The main reduction driven tooth (14) of differential assembly (15) is engaged.

4. electric vehicle transmission according to claim 2, it is characterised in that: one grade of driven tooth (11) and two grades of driven tooths (3) Shift tooth hub (8) two sides are located at, for one grade of driven tooth (11) empty set on output shaft (1), two grades of driven tooths (3) are mounted on list To clutch (12) outer ring, one-way clutch (12) inner ring is mounted on output shaft (1).

5. electric vehicle transmission according to claim 4, it is characterised in that: when shift tooth set (7) is centrally located, change Tooth hub (8) and one grade of driven tooth (11), two grades of driven tooths (3) are kept off without drive connection；When shift tooth set (7) pushes left side, It is engaged on the left of shift tooth set (7) with one grade of conjunction gear (9) of one grade of driven tooth (11), shift tooth set (7) right side and shift tooth hub (8) it engages；Two grades of conjunction gears (6) when shift tooth set (7) pushes right side, on the right side of shift tooth set (7) with two grades of driven tooths (3) Engagement, shift tooth set (7) left side and shift tooth hub (8) engagement.

6. electric vehicle transmission according to claim 2, it is characterised in that: one grade of driven tooth (11) and two grades of driven tooths (3) Being close on the side of shift tooth hub (8) respectively has a ladder, is respectively used to that one grade of conjunction gear (9) and two grades of conjunction gears are fixedly mounted (6).

7. any one of -6 electric vehicle transmission according to claim 1, it is characterised in that: the structure is mounted on procapsid (18) between back casing (19), electric shift mechanism (16) and gear position sensor (17) are installed on back casing (19).

8. any one of -6 electric vehicle transmission according to claim 1, it is characterised in that: speed changer is used for electric vehicle.

Technical field

The present invention relates to a kind of speed changers used on pure electric automobile and hybrid vehicle.

Background technique

The passenger car and light-duty logistic car of now domestic and international most pure electric vehicles, are all subtracted using the machinery of fixed drive ratio Fast device, although this kind of drive simple in structure and low in cost, since vehicle is needed at any time in different roads and load item Part downward driving, fixed speed ratio will lead to driving motor and often work in the lower situation of efficiency, have to the course continuation mileage of vehicle Adverse effect, there are also a small number of pure electric vehicles to use speed changer, but since there are power interruptions and gear shifting quality etc. Defect, not yet popularize.

Summary of the invention

The technical problems to be solved by the present invention are: to use the various different vehicles of the mechanical reducer of fixed drive ratio Type provides a kind of electronic vehicular transmission.It is automatically separated and engages using the characteristic realization that surmounts of one-way clutch, not only improve Gear shifting quality, the power interruption time that also can be reduced 50 percent simultaneously, thus to improve the dynamic property of whole vehicle and prolonging Long cruising ability provides hardware support.

The present invention adopts the following technical solutions:

A kind of electric vehicle transmission, including output shaft and input shaft, one grade of driving tooth and one grade of driven tooth engagement on input shaft, One grade of driven tooth is mounted on output shaft by one-way clutch, and one grade of driven flank has one grade of conjunction gear, passes through tooth of shifting gears Set controls one grade of conjunction gear and whether shift tooth hub is driven, and shift tooth hub is mounted on output shaft.

Two grades of driven tooths are set on output shaft, two grades of active tooth engagements in two grades of driven tooths and input shaft, two grades driven Flank has two grades of conjunction gears, controls two grades of conjunction gears by shift tooth set and whether shift tooth hub is driven.

The main reduction driven tooth engagement of main deceleration driving tooth and differential assembly on output shaft.

One grade of driven tooth and two grades of driven tooths are located at shift tooth hub two sides, and one grade of driven tooth sky is set on the output shaft, Two grades of driven tooths are mounted on one-way clutch outer ring, and one-way clutch inner ring is mounted on output shaft.

One grade of driven tooth and two grades of driven tooths, which are close on the side of shift tooth hub, respectively a ladder, is respectively used to fixed peace Fill one grade of conjunction gear and two grades of conjunction gears.

When tooth set of shifting gears is centrally located, shift tooth hub and one grade of driven tooth, two grades of driven tooths are without drive connection；When When shift tooth set pushes left side, shift tooth covers left side and one grade of one grade of driven tooth combines tooth engagement, and shift tooth covers right side and changes Keep off the engagement of tooth hub；When tooth set of shifting gears pushes right side, shift tooth covers right side and two grades of two grades of driven tooths combine tooth engagement, shift Tooth set left side and shift tooth hub engagement.

The structure is mounted between front housing and the rear housing, and electric shift mechanism and gear sensing are equipped on back casing Device.

This speed changer is used for electric vehicle.

Beneficial effects of the present invention:

Gearshift procedure brief introduction

Vehicle under steam as shown in Figure 2 one grade changes two grades, and the present invention only needs motor drop to turn round speed regulation just there is no a grade process is plucked Shelves can be hung, so power interruption time reduces 50%.

Vehicle under steam as shown in Figure 3 two grades change one grade, and the present invention only needs motor drop to turn round and plucks shelves, gear shift tooth is covered 7, Left position as shown in Figure 3 is shifted to the right to middle position shown in Fig. 2, so that it may gear shift is realized, so power interruption time 50% can be reduced.

The present invention can increase can shorten when the climbing capacity of vehicle, the course continuation mileage for improving vehicle, gear shift 50% it is dynamic The power break period improves gear shifting quality, promotes vehicle performance, to popularizing with positive effect for new-energy automobile, is worth It promotes and applies.

Detailed description of the invention

Fig. 1 is two grades of gear schematic diagrames.

Fig. 2 is two grades of one file location schematic diagrames of gear.

Fig. 3 is two grades of two file location schematic diagrames of gear.

Fig. 4 is two grades of one reverse gear position schematic diagrames of gear.

Fig. 5 is speed changer monnolithic case schematic diagram.

Specific embodiment