CN207421239U - A kind of two grades of pure electric vehicle gearboxes - Google Patents
A kind of two grades of pure electric vehicle gearboxes Download PDFInfo
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- CN207421239U CN207421239U CN201721392227.0U CN201721392227U CN207421239U CN 207421239 U CN207421239 U CN 207421239U CN 201721392227 U CN201721392227 U CN 201721392227U CN 207421239 U CN207421239 U CN 207421239U
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- gear
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- input shaft
- electric vehicle
- pure electric
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Abstract
The utility model provides a kind of two grades of pure electric vehicle gearboxes, including：Motor, input shaft, sun gear, planetary gear, planet carrier, clutch, first gear, second gear, the 3rd gear, brake；Motor is fixedly connected with input shaft, and torque is transferred by input shaft；Sun gear and clutch are provided on input shaft, on planet carrier, planet carrier connects firmly planetary gear empty set with the first gear being arranged on input shaft；Second gear is realized by the combination of clutch or separation and the connection of input shaft and separated；The gear ring of planetary gear is by combining with brake or separating the connection of realization and gear box casing and separate；First gear and second gear are disposed adjacent side by side.The utility model has the following advantages：By clutch and the separation and combination of braking, power failure-free gearshift is realized, cornering ability is promoted；The part of driving parts is few, transmission efficiency.
Description
Technical field
The utility model is related to a kind of automobile technical field, more particularly to a kind of new two grades of pure electric vehicle gearboxes.
Background technology
The dynamic interruption of existing two grades of gearboxes of pure electric vehicle drives poor quality.It if as shown in Figure 1, will be from one grade
Two grades of gearshift, it is necessary to by neutral gear, cause power interruption.Existing pure electric vehicle power drive system generally uses one grade of reduction box
Or two grades of gearboxes, comprehensive various aspects of performance performance, two grades of power drive systems are strong with climbing capacity, and acceleration is good, highest
The advantages such as speed height.Existing two grades of power drive systems（Single motor drives）Due to most of using synchronizer structure, have
What power was interrupted happens, and otherwise can not shift gears.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of two grades of pure electric vehicle gearboxes, including：A kind of two grades pure
Electric shift case, which is characterized in that including：Motor, input shaft, sun gear, planetary gear, planet carrier, clutch, first gear,
Second gear, the 3rd gear, brake；
Motor is fixedly connected with input shaft, and torque is transferred by input shaft；
Sun gear and clutch are provided on input shaft, planetary gear empty set is on planet carrier, and planet carrier is with being arranged on input
First gear on axis connects firmly；Second gear is realized by the combination of clutch or separation and the connection of input shaft and separated；Row
The gear ring of star-wheel is by combining with brake or separating the connection of realization and gear box casing and separate；First gear and the second tooth
Wheel is disposed adjacent side by side.
Further, driven gear is further included, first gear and second gear engage simultaneously with driven gear, pass through gear pair
Passing power.
Preferably, driven gear is gear set.
Further, the gear width of driven gear is more than or equal to the sum of facewidth of first gear and second gear.
Preferably, first gear is identical with the facewidth of second gear.
Preferably, wherein, planetary gear is symmetrical multiple.
Further, when planetary wheel carrier directly exports, speed ratio is 1+K, wherein, K is the gear ring number of teeth/sun gear number of teeth.
Preferably, the 3rd gear is further included, the 3rd gear is coaxially disposed with the driven gear, the 3rd gear
Outer diameter be less than the driven gear outer diameter.
Further, final gear is further included, the driven gear or the 3rd gear are engaged with the final gear, are led to
It crosses gear pair and transmits torque to the final gear.
Further, differential mechanism is further included, the final gear is fixedly connected with the differential mechanism.
The technical solution of the utility model is：Using double clutch form, synchronizer is not required, you can gearshift is completed, and
In shift process power is kept not interrupt.
As a result of said program, the utility model has the characteristics that：
（1）By clutch and the separation and combination of braking, power failure-free gearshift is realized, cornering ability is promoted.
（2）Driving parts only need one group of 2K-H planetary gear train, three gears, a brake, a clutch, part
It is few, transmission efficiency.
Description of the drawings
Fig. 1 is the structure diagram of two grades of gearboxes of automobile pure electric vehicle of the prior art；
Fig. 2 is a kind of structure diagram of two grades of pure electric vehicle gearboxes of first preferred embodiment of the utility model；
Fig. 3 is a kind of structure diagram of two grades of pure electric vehicle gearboxes of second preferred embodiment of the utility model.
Specific embodiment
A preferred embodiment of the utility model is introduced below with reference to Figure of description, citing proves that the utility model can
To implement, its technology contents can be made more clear and be convenient for those of skill in the art's complete description the utility model
Understand.The utility model can be emerged from by many various forms of embodiments, and protection domain is not limited only to text
In the embodiment mentioned, figures and description herein substantially illustrates rather than limitation the utility model.In the accompanying drawings,
The identical component of structure represents that the similar component of structure or function is represented with like numeral label everywhere with same numbers label.
Embodiment one
As shown in Fig. 2, a preferred embodiment of the utility model provides a kind of two grades of pure electric vehicle gearboxes, including：
Motor 12, input shaft 8, sun gear 2, planetary gear 3, planet carrier 1, clutch 7, first gear 6, second gear 9, brake 5；Electricity
Machine 12 is fixedly connected with input shaft 8, and torque is transferred by input shaft 8；Sun gear 2 and clutch 7 are provided on input shaft 8, row
On planet carrier 1, planet carrier 1 connects firmly 3 empty set of star-wheel with the first gear 6 being arranged on input shaft 8；Second gear 9 by from
The combination of clutch 7 separates the connection of realization and input shaft 8 and separates；The gear ring 13 of planetary gear 3 by being combined with brake 5 or
It separates the connection of realization and gear box casing 5 and separates；First gear 6 and second gear 9 are disposed adjacent side by side.
Driven gear 11 is further included, first gear 6 and second gear 9 nibble 11 conjunctions with driven gear simultaneously, pass through gear pair
Passing power.
The gear width of driven gear 11 is equal to the sum of facewidth of first gear 6 and second gear 9.
First gear 6 is identical with the facewidth of second gear 9.Wherein, planetary gear 3 is symmetrical two.
When planetary wheel carrier 1 directly exports, speed ratio is 1+K, wherein, K is 13 numbers of teeth of gear ring/sun gear number of teeth.
Differential mechanism 10 is further included, the driven gear 11 is fixedly connected with the differential mechanism 10.
Embodiment two
As shown in figure 3, a preferred embodiment of the utility model provides a kind of two grades of pure electric vehicle gearboxes, including：
Motor 12, input shaft 8, sun gear 2, planetary gear 3, planet carrier 1, clutch 7, first gear 6, second gear 9, brake 5；Electricity
Machine 12 is fixedly connected with input shaft 8, and torque is transferred by input shaft 8；Sun gear 2 and clutch 7 are provided on input shaft 8, row
On planet carrier 1, planet carrier 1 connects firmly 3 empty set of star-wheel with the first gear 6 being arranged on input shaft 8；Second gear 9 by from
The combination of clutch 7 separates the connection of realization and input shaft 8 and separates；The gear ring 13 of planetary gear 3 by being combined with brake 5 or
It separates the connection of realization and gear box casing 5 and separates；First gear 6 and second gear 9 are disposed adjacent side by side.
In the present embodiment, driven gear 9 is gear set.The gear of driven gear 9 is more than first gear 6 and second gear 9
The sum of the facewidth.First gear 6 is identical with the facewidth of second gear 9.
Wherein, planetary gear 3 is symmetrical three.When planetary wheel carrier 1 directly exports, speed ratio is 1+K, wherein, K is gear ring tooth
Number/sun gear the number of teeth.
The present embodiment further includes the 3rd gear 14, and the 3rd gear 14 is coaxially disposed with the driven gear 9, and described
The outer diameter of three gears 14 is less than the outer diameter of the driven gear 9.And final gear 15, the 3rd gear 14 and the main deceleration
Gear 15 engages, and the final gear 15 is transmitted torque to by gear pair.
In addition, further including differential mechanism 10, the final gear 15 is fixedly connected with the differential mechanism 10.
The technical solution of the utility model is：Using double clutch form, synchronizer is not required, you can gearshift is completed, and
In shift process power is kept not interrupt.Motor 12 is fixedly connected with 8 spline of input shaft, and input shaft 8 is equipped with sun gear 2,
Simultaneously equipped with clutch 7, gear 9 and input shaft 8 are connected by clutch 7, and clutch 7 is opened, and the discord input shaft 8 of gear 9 is solid
Connection, clutch 7 are closed, and gear 9 and input shaft 8 connect firmly；Gear box casing 5 is equipped with brake, connects gear ring 13, brake knot
It closes, gear ring 13 is fixedly connected with gear box casing 5, and brake is opened, and gear box casing 5 is not connected with gear ring；3 empty set of planetary gear
On planet carrier 1, planet carrier 1 is connected firmly with gear 6；Gear 6 and gear 9 and final gear 11 by gear pair passing power,
Gear 11 is fixedly connected with differential mechanism 10.
Working method：Pure electric vehicle starting stage, brake 4 are closed, and clutch 7 is opened, at this time planetary gear train Working mould
Formula is：Sun gear 2 inputs, and gear ring 13 is fixed, and planet carrier 1 exports, and speed is than being 1+K（The gear ring number of teeth/sun gear the number of teeth）, planet carrier
1 delivers torque to gear 6, and gear 6 transmits torque to final gear 11 by gear pair, and then torque is passed through differential mechanism
10 are transferred to wheel, and driving vehicle advances., it is necessary to change to 2 grades after certain speed is reached, brake 4 is opened at this time, while from
Clutch is closed, and realizes power failure-free gearshift.Sun gear 2 directly transmits torque to gear 9 at this time, and gear 9 is passed by gear pair
Torque delivery is transferred to wheel end to final gear 11, then by differential mechanism 10.
As a result of said program, the utility model has the characteristics that：
（1）By clutch and the separation and combination of braking, power failure-free gearshift is realized, cornering ability is promoted.
（2）Driving parts only need one group of 2K-H planetary gear train, three gears, a brake, a clutch, part
It is few, transmission efficiency.
The utility model compared with the existing technology, has the characteristics of structure novel, simple, practicality, convenient to use.
The above is only the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
Personnel on the premise of the utility model principle is not departed from, can also make several improvements and modifications, these improvements and modifications
It should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of two grades of pure electric vehicle gearboxes, which is characterized in that including：Motor, input shaft, sun gear, planetary gear, planet carrier,
Clutch, first gear, second gear, brake；
The motor is fixedly connected with the input shaft, and torque is transferred by the input shaft；
The sun gear and the clutch are provided on the input shaft, the planetary gear empty set is on planet carrier, the row
Carrier is connected firmly with the first gear being arranged on the input shaft；The combination or separation that the second gear passes through the clutch
It realizes the connection with the input shaft and separates；The gear ring of the planetary gear by with the brake combine or separate realization with
The connection and separation of the gear box casing；The first gear and the second gear are disposed adjacent side by side.
2. two grades of pure electric vehicle gearboxes of one kind as described in claim 1, which is characterized in that further include driven gear, the first tooth
Wheel and second gear engage simultaneously with the driven gear, pass through gear pair passing power.
3. two grades of pure electric vehicle gearboxes of one kind as claimed in claim 2, which is characterized in that the driven gear is gear set.
4. two grades of pure electric vehicle gearboxes of one kind as claimed in claim 2, which is characterized in that the gear width of the driven gear
More than or equal to the sum of facewidth of the first gear and the second gear.
5. two grades of pure electric vehicle gearboxes of one kind as described in claim 1, which is characterized in that the first gear and second gear
The facewidth it is identical.
6. two grades of pure electric vehicle gearboxes of one kind as described in claim 1, which is characterized in that wherein, the planetary gear is symmetrical
It is multiple.
7. two grades of pure electric vehicle gearboxes of one kind as described in claim 1, which is characterized in that the planetary wheel carrier directly exports
When, speed ratio is 1+K, wherein, K is the gear ring number of teeth/sun gear number of teeth.
8. two grades of pure electric vehicle gearboxes of one kind as claimed in claim 2, which is characterized in that further include the 3rd gear, described the
Three gears are coaxially disposed with the driven gear, and the outer diameter of the 3rd gear is less than the outer diameter of the driven gear.
9. two grades of pure electric vehicle gearboxes of one kind as claimed in claim 8, which is characterized in that final gear is further included, it is described
3rd gear is engaged with the final gear, and the final gear is transmitted torque to by gear pair.
10. two grades of pure electric vehicle gearboxes of one kind as claimed in claim 9, which is characterized in that further include differential mechanism, the master subtracts
Fast gear is fixedly connected with the differential mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392227.0U CN207421239U (en) | 2017-10-25 | 2017-10-25 | A kind of two grades of pure electric vehicle gearboxes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392227.0U CN207421239U (en) | 2017-10-25 | 2017-10-25 | A kind of two grades of pure electric vehicle gearboxes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207421239U true CN207421239U (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721392227.0U Active CN207421239U (en) | 2017-10-25 | 2017-10-25 | A kind of two grades of pure electric vehicle gearboxes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542861A (en) * | 2017-10-25 | 2018-01-05 | 上海伊控动力系统有限公司 | A kind of two grades of pure electric shift casees |
-
2017
- 2017-10-25 CN CN201721392227.0U patent/CN207421239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542861A (en) * | 2017-10-25 | 2018-01-05 | 上海伊控动力系统有限公司 | A kind of two grades of pure electric shift casees |
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