CN208686901U - EV planetary automatic speed-changing mechanism - Google Patents
EV planetary automatic speed-changing mechanism Download PDFInfo
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- CN208686901U CN208686901U CN201821344424.XU CN201821344424U CN208686901U CN 208686901 U CN208686901 U CN 208686901U CN 201821344424 U CN201821344424 U CN 201821344424U CN 208686901 U CN208686901 U CN 208686901U
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- gear
- planet carrier
- planetary
- planetary gear
- unilateral bearing
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Abstract
The utility model discloses a kind of EV planetary automatic speed-changing mechanisms, including sun gear, planetary gear, ring gear, planet carrier unilateral bearing, planet carrier and planetary gear unilateral bearing, multiple planetary gears are distributed uniformly and circumferentially in the outside of sun gear, ring gear is set to the outside of planetary gear, planet carrier is arranged in parallel in the side of planetary gear, it is connected by planetary gear unilateral bearing with rotation axis on the inside of planetary gear, one end of rotation axis passes through planet carrier, planet carrier unilateral bearing is set at planet carrier medial center, the inside of planet carrier unilateral bearing with an axle construction to be connected, planetary gear unilateral bearing and the permitted bearing outer ring of planet carrier unilateral bearing are identical with respect to the rotation direction of bearing inner race.Compared with the existing technology, the utility model can be realized the shift function of different several ratios, also have the function of automatic sliding by adjusting the steering of motor output shaft, and the operating process of gear is simple and reliable, easy to use, and manufacture is easy, and cost performance is high.
Description
Technical field
The utility model relates to gear technical fields, more particularly to a kind of EV planetary automatic speed-changing mechanism.
Background technique
Electric vehicle (Electric Vehicle) is equipped with motor and battery, the vehicle-mounted charge instead of engine
Device, battery, control device etc. replace the automobile of gasoline driven with the electric power of rechargeable battery.Compared with traditional fuel vehicle, electricity
Motor-car does not carry petrol engine, does not discharge exhaust gas completely during traveling, noise and vibration are all lower, and are slowing down
The renewable recycling of Shi Nengyuan, therefore electric vehicle becomes the development trend of motor vehicle.
Gear is the important component of electric vehicle, the variation of torsion and revolving speed when can be realized power output.Existing skill
In the gear of art, traditional moving tooth machinery fork shift reliability is not high, and safety is poor；Conventional planetary gear can only realize single speed
The acceleration or deceleration of ratio；Traditional multi gear variable speed hydraulic clutch is bulky, and control is complicated, at high cost；Electric clutch structure is numerous
Miscellaneous, weight weight, fever is big, and manufacturing technology difficulty is big.
Therefore, it is simple how to provide a kind of structure, small, the speed-changing mechanism of electric vehicle of economic and reliable is lost, is this field skill
Art personnel technical problem urgently to be resolved.
Utility model content
Simple, small, at low cost, high reliablity the electric vehicle speed change of loss that the purpose of the utility model is to provide a kind of structures
The function of two speed ratio shifts can be realized by adjusting the steering of motor output shaft in mechanism, when ring gear actively rotates, also
It is able to achieve automatic sliding function.
To achieve the above object, the utility model provides following scheme:
The utility model discloses a kind of EV planetary automatic speed-changing mechanisms, including sun gear, planetary gear, ring gear, planet
Frame unilateral bearing, planet carrier and planetary gear unilateral bearing, the planetary gear be it is multiple and simultaneously with the sun gear and described interior
Gear ring engagement, multiple planetary gears are distributed uniformly and circumferentially in the outside of the sun gear, and the ring gear is set to
The outside of the planetary gear, the planet carrier are arranged in parallel in the side of the planetary gear, pass through on the inside of the planetary gear described
Planetary gear unilateral bearing is connected with rotation axis, and one end of the rotation axis passes through the planet carrier, the planet carrier unilateral bearing
It is set at the planet carrier medial center, the inside of the planet carrier unilateral bearing with an axle construction to be connected, the row
Star wheel unidirectional bearing and the permitted bearing outer ring of planet carrier unilateral bearing are identical with respect to the rotation direction of bearing inner race.
Preferably, internal tooth is provided on the inside of the sun gear, the internal tooth of the sun gear with driving structure to engage
Connection.
Preferably, the quantity of the planetary gear is 5.
Preferably, the width of the ring gear be greater than the sun gear width and the planetary gear width, it is described too
Sun wheel and the planetary gear are set to the lower region of the ring gear, and the planet carrier is set to the top regions of the ring gear
Domain.
Preferably, the rotation axis includes the first cylindrical section and the second cylindrical section, and the diameter of first cylindrical section is greater than
The diameter of second cylindrical section, second cylindrical section are socketed within the inner ring of the planetary gear unilateral bearing, the row
The upper surface of carrier is provided with stepped hole, and first cylindrical section is set at the stepped hole.
Preferably, the two sides up and down of the ring gear are respectively arranged with upper end cover and lower cover, the upper end cover and described
Axis hole is provided at the center of lower cover, the ring gear, the upper end cover and the lower cover are fixedly connected by fastener,
The perforative through-hole to pass through the fastener is provided on the ring gear, the upper end cover and the lower cover.
The utility model achieves following technical effect compared with the existing technology:
When the output shaft of motor rotates counterclockwise, and further driving sun gear rotates counterclockwise, sun gear is directly done
Function is in ring gear.Since ring gear and sun gear gear ratio are different, so that realizing that ring gear slows down clockwise reinforces output work
Energy.
When the output shaft of motor rotates clockwise, and further driving sun gear rotates clockwise, planetary gear itself is not
Rotation, planet carrier and ring gear rotate clockwise under the stirring of sun gear, so that it is defeated to realize that ring gear accelerates to subtract power clockwise
Function out.
Therefore, shift function can be realized by adjusting the steering of motor output shaft in the utility model, when ring gear active
When rotation, moreover it is possible to realize automatic sliding function.The operating process of gear is simple and reliable, easy to use, and manufacture is easy, property
Valence is than high.
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
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the bottom view of the utility model EV planetary automatic speed-changing mechanism；
Fig. 2 slows down clockwise for ring gear reinforces the schematic diagram of output；
Fig. 3 is that ring gear accelerates to subtract the schematic diagram of power output clockwise；
Description of symbols: 1 planet carrier unilateral bearing；2 ring gears；3 planetary gears；4 sun gears；5 planetary gear unilateral bearings；
6 planet carriers.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of structure is simple, small, the speed-changing mechanism of electric vehicle of economic and reliable is lost, leads to
The steering for crossing adjustment motor output shaft, can be realized the function of two speed ratio shifts, there are also automatic sliding functions.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
As shown in Figure 1-3, the present embodiment provides a kind of EV planetary automatic speed-changing mechanism, including it is sun gear 4, planetary gear 3, interior
Gear ring 2, planet carrier unilateral bearing 1, planet carrier 6 and planetary gear unilateral bearing 5.
Planetary gear 3 is multiple and engages simultaneously with sun gear 4 and ring gear 2, when sun gear 4 rotates, by planetary gear 3
Transmission can drive ring gear 2 rotate, and in turn driving with the relatively-stationary structure synchronization of ring gear 2 carry out rotational action,
Realize the transmitting of power.There are many driving methods of sun gear 4, and in the present embodiment, the inside of sun gear 4 is provided with internal tooth, too
The internal tooth of sun wheel 4 is connected to engage with driving structure.
Ring gear 2 is set to the outside of planetary gear 3, and multiple planetary gears 3 are distributed uniformly and circumferentially in the outer of sun gear 4
Side, in order to make whole stress more evenly.In the present embodiment, the quantity of planetary gear 3 is 5.
Planet carrier 6 is arranged in parallel in the upside of planetary gear 3, and coaxial with sun gear 4 and ring gear 2.Lead on the inside of planetary gear 3
Space star wheel unidirectional bearing 5 is connected with rotation axis (being not drawn into figure), realizes the one-directional rotation between planetary gear 3 and planet carrier 6
Connection.One end of rotation axis passes through planet carrier 6, and planet carrier unilateral bearing 1 is set at 6 medial center of planet carrier, planet carrier list
To the inside of bearing 1 to be connected with an axle construction (part-structure on cabinet shell, figure in be not drawn into), planet carrier 6 is realized
One-directional rotation connection between cabinet shell.In the present embodiment, planetary gear unilateral bearing 5 and planet carrier unilateral bearing 1 are permitted
Perhaps bearing outer ring is identical with respect to the rotation direction of bearing inner race, is clockwise.
For the ease of installation, the width of ring gear 2 is greater than the width of sun gear 4 and the width of planetary gear 3.In ring gear 2
Side is nested with upper layer and lower layer, and sun gear 4 and planetary gear 3 are set to the lower region of 2 inside of ring gear, and planet carrier 6 is set to interior
The top area of 2 inside of gear ring.
Further, the rotation axis of the present embodiment includes the first cylindrical section and the second cylindrical section, the diameter of the first cylindrical section
Greater than the diameter of the second cylindrical section.Second cylindrical section is socketed within the inner ring of planetary gear unilateral bearing 5, the upper table of planet carrier 6
Face is provided with stepped hole, and the first cylindrical section is set at the stepped hole.
Further, in order to improve overall tightness, the two sides up and down of ring gear 2 are respectively arranged with upper end cover and lower end
It covers (being not drawn into figure).Axis hole is provided at the center of upper end cover and lower cover, ring gear 2, upper end cover and lower cover pass through tight
Firmware is fixedly connected, and is provided on ring gear 2, upper end cover and lower cover to the perforative through-hole across fastener (in figure not
It draws).
It is specifically described below with reference to Tables 1 and 2, wherein table 1 is A class main logic table, i.e. sun gear 4 is actively entered
When logical table, table 2 is the derivative logical table of B class, i.e., logical table when ring gear 2 is actively entered.
Table 1
Table 2
As shown in Fig. 2, when the output shaft of motor rotates counterclockwise, and when further driving sun gear 4 rotates counterclockwise, row
Star-wheel 3 rotates clockwise, and decouples between planetary gear 3 and planet carrier 6.Due to the stirring to planetary gear 3 of sun gear 4, planet carrier 6 has
The trend rotated counterclockwise, but limited by planet carrier unilateral bearing 1, planet carrier 6 is fixed, planet carrier 6 and cabinet shell
Coupling, planetary gear 3 are evolved into the transition gear of sun gear 4 Yu ring gear 2.Under the action of planetary gear 3, sun gear 4 is directly done
Function is in ring gear 2.Since ring gear 2 and 4 gear ratio of sun gear are different, to realize ring gear 2, deceleration reinforcing is defeated clockwise
Function out.
As shown in figure 3, when the output shaft of motor rotates clockwise, and when further driving sun gear 4 rotates clockwise, by
In the stirring to planetary gear 3 of sun gear 4, planetary gear 3 has the tendency that rotating counterclockwise, but is limited by planetary gear unilateral bearing 5,
Planetary gear 3 does not rotate itself, couples between planetary gear 3 and planet carrier 6, and planet carrier 6 and ring gear 2 are under the stirring of sun gear 4
It rotates clockwise, planet carrier 6 and cabinet shell decouple, to realize that ring gear 2 accelerates to subtract power output function clockwise.
As the above analysis, when sun gear is as end is actively entered, no matter sun gear 4 is rotated clockwise or the inverse time
Needle rotation, ring gear 2 is to rotate clockwise.On descending section, when the gradient is larger, ring gear 2 will be as actively rotation
Structure, ring gear 2 are rotated clockwise relative to sun gear 4.Those skilled in the art are not difficult to obtain, and planetary gear 3 is clockwise at this time
Rotation, decouples between planetary gear 3 and planet carrier 6, and planet carrier 6 and sun gear 4 rotate clockwise, planet carrier 6 and cabinet shell solution
Coupling, gear enter sliding state, to extend mileage travelled, reach energy-efficient purpose.
Therefore, by adjusting the steering of motor output shaft, shift function (as shown in table 1) can be realized, gear
Operating process is simple and reliable, easy to use, and manufacture is easy, and cost performance is high.Similarly, when ring gear 2 is as end is actively entered,
The speed changing effect of the gear can refer to table 2.
It applies specific case in this specification to be expounded the principles of the present invention and embodiment, the above reality
The explanation for applying example is merely used to help understand the method and its core concept of the utility model；Meanwhile for the general of this field
Technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up institute
It states, the content of the present specification should not be construed as a limitation of the present invention.
Claims (6)
1. a kind of EV planetary automatic speed-changing mechanism, which is characterized in that including sun gear, planetary gear, ring gear, planet carrier one-way shaft
It holding, planet carrier and planetary gear unilateral bearing, the planetary gear is multiple and engages simultaneously with the sun gear and the ring gear,
Multiple planetary gears are distributed uniformly and circumferentially in the outside of the sun gear, and the ring gear is set to the planetary gear
Outside, the planet carrier is arranged in parallel in the side of the planetary gear, unidirectional by the planetary gear on the inside of the planetary gear
Bearing is connected with rotation axis, and one end of the rotation axis passes through the planet carrier, and the planet carrier unilateral bearing is set to described
At planet carrier medial center, the inside of the planet carrier unilateral bearing with an axle construction to be connected, the planetary gear one-way shaft
It holds identical with respect to the rotation direction of bearing inner race with the permitted bearing outer ring of planet carrier unilateral bearing.
2. EV planetary automatic speed-changing according to claim 1 mechanism, which is characterized in that be provided on the inside of the sun gear
The internal tooth of internal tooth, the sun gear is connected to engage with driving structure.
3. EV planetary automatic speed-changing according to claim 1 mechanism, which is characterized in that the quantity of the planetary gear is 5.
4. EV planetary automatic speed-changing according to claim 1 mechanism, which is characterized in that the width of the ring gear is greater than institute
The width of sun gear and the width of the planetary gear are stated, the sun gear and the planetary gear are set to the lower layer of the ring gear
Region, the planet carrier are set to the top area of the ring gear.
5. EV planetary automatic speed-changing according to claim 4 mechanism, which is characterized in that the rotation axis includes the first cylinder
Section and the second cylindrical section, the diameter of first cylindrical section are greater than the diameter of second cylindrical section, the second cylindrical section set
It is connected within the inner ring of the planetary gear unilateral bearing, the upper surface of the planet carrier is provided with stepped hole, first cylinder
Section is set at the stepped hole.
6. EV planetary automatic speed-changing according to claim 5 mechanism, which is characterized in that the two sides up and down of the ring gear point
It is not provided with upper end cover and lower cover, is provided with axis hole, the ring gear, institute at the center of the upper end cover and the lower cover
It states upper end cover and is fixedly connected with the lower cover by fastener, set on the ring gear, the upper end cover and the lower cover
It is equipped with the perforative through-hole to pass through the fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821344424.XU CN208686901U (en) | 2018-08-21 | 2018-08-21 | EV planetary automatic speed-changing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821344424.XU CN208686901U (en) | 2018-08-21 | 2018-08-21 | EV planetary automatic speed-changing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208686901U true CN208686901U (en) | 2019-04-02 |
Family
ID=65885877
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821344424.XU Active CN208686901U (en) | 2018-08-21 | 2018-08-21 | EV planetary automatic speed-changing mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730433A (en) * | 2018-08-21 | 2018-11-02 | 小刘新能源动力科技（江门）有限公司 | EV planetary automatic speed-changings mechanism |
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2018
- 2018-08-21 CN CN201821344424.XU patent/CN208686901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730433A (en) * | 2018-08-21 | 2018-11-02 | 小刘新能源动力科技（江门）有限公司 | EV planetary automatic speed-changings mechanism |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 529000 Room 518, 5 building, 2 silver harbor Avenue, Xinhui District, Jiangmen, Guangdong, China, 8 Patentee after: Guangdong chaoniu electric motorcycle Technology Co., Ltd Address before: 529000 Room 518, 5 building, 2 silver harbor Avenue, Xinhui District, Jiangmen, Guangdong, China, 8 Patentee before: XIAOLIU NEW ENERGY POWER TECHNOLOGY (JIANGMEN) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |