CN208951233U - Planetary reducer and vehicle - Google Patents
Planetary reducer and vehicle Download PDFInfo
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- CN208951233U CN208951233U CN201821477810.6U CN201821477810U CN208951233U CN 208951233 U CN208951233 U CN 208951233U CN 201821477810 U CN201821477810 U CN 201821477810U CN 208951233 U CN208951233 U CN 208951233U
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- planetary
- planetary gear
- gear
- gear mechanism
- planetary reducer
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Abstract
The utility model discloses a kind of planetary reducer and vehicles, are related to car deceleration device technical field, existing in the prior art to the demanding technical problem of motor performance to alleviate.The planetary reducer includes planetary gear mechanism；Multiple planetary gear mechanisms are alternatively arranged；The sun gear of the planet carrier of the planetary gear mechanism planetary gear mechanism adjacent with rear connects；The gear ring of each planetary gear mechanism is fixed.The vehicle includes driving motor, drive shaft, wheel and above-mentioned planetary reducer；Two driving motors are coaxially disposed side by side；Driving motor, planetary reducer, drive shaft and wheel are successively sequentially connected.Planetary reducer and vehicle provided by the utility model keep vehicle lower to the performance requirement of motor.
Description
Technical field
The utility model relates to car deceleration device technical fields, more particularly, to a kind of planetary reducer and vehicle.
Background technique
Using wheel hub in the power assembly technical solution that existing electric car is independently controlled each wheel, drives
Motor.
For the electric car using hub motor, since available space is limited in wheel hub, and load be should not be too large under spring,
And then not integration reducer in the hub, motor itself is relied primarily on to provide enough driving moments, to motor performance requirement
It is relatively high.
The information disclosed in the background technology section is intended only to deepen the understanding to the utility model general background technology,
And it is not construed as recognizing or implying in any form that the information constitutes the prior art known in those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of planetary reducer and vehicles, are existed in the prior art with alleviating
The technical problem more demanding to motor performance.
To solve the above problems, the utility model the following technical schemes are provided:
A kind of planetary reducer, including planetary gear mechanism, the planetary gear mechanism include sun gear, planet
Wheel, gear ring and planet carrier；
Multiple planetary gear mechanisms are alternatively arranged, and axis is overlapped；The planet carrier of the planetary gear mechanism
The sun gear of the planetary gear mechanism adjacent with rear connects；The gear ring of each planetary gear mechanism is equal
It is fixed；
The sun gear of power from the planetary gear mechanism of front end inputs, from the planetary gear of rearmost end
The planet carrier of mechanism exports.
Further,
Including two planetary gear mechanisms.
Further,
The sun gear of two planetary gear mechanisms, the number of teeth of the planetary gear and the gear ring and modulus are right
It answers equal.
Further,
The gear ring integrally connected of two planetary gear mechanisms.
Further,
The planetary gear mechanism includes three planetary gears, and three planetary gears are distributed in the sun gear and institute
It states between gear ring.
Further,
The planet carrier includes bracket and connecting rod；
The planetary gear is mounted on the bracket；One end of the connecting rod is connect with the middle part of the bracket, another
Hold the sun gear connection of the planetary gear mechanism adjacent with rear.
Further,
External splines is arranged in the end far from the bracket of the connecting rod, the adjacent planetary gear mechanism in rear
The splined hole of setting and external splines cooperation in the middle part of the sun gear；
The splined hole is protruded into one end of the setting external splines of the connecting rod.
Further,
It further include shell, the gear ring is installed on the inner wall of the shell.
A kind of vehicle, including driving motor, drive shaft, wheel and above-mentioned planetary reducer；
Two driving motors are coaxially disposed side by side, and the extension end of the shaft of two driving motors is away from each other；
The driving motor, the planetary reducer, the drive shaft and the wheel are successively sequentially connected.
Further,
The shaft of the driving motor is connect with the planetary reducer by spline.
In conjunction with above technical scheme, the utility model bring beneficial effect is analyzed as follows:
The utility model provides a kind of planetary reducer, which includes planetary gear mechanism,
Planetary gear mechanism includes sun gear, planetary gear, gear ring and planet carrier；Multiple planetary gear mechanisms are alternatively arranged, and axis weight
It closes；The sun gear of the planet carrier of the planetary gear mechanism planetary gear mechanism adjacent with rear connects；Each planetary gear mechanism
Gear ring it is fixed；Power is from the sun gear input of the planetary gear mechanism of front end, from the planetary gear mechanism of rearmost end
Planet carrier output.
The planetary reducer is installed on the vehicle using ordinary motor, since the planetary reducer can be right
Decelerating through motor and increase torque, so, compared to hub motor, performance of the vehicle to motor of the planetary reducer is installed
It is required that lower.
The utility model additionally provides a kind of vehicle, which includes driving motor, drive shaft, wheel and above-mentioned
Planetary reducer；Two driving motors are coaxially disposed side by side, and the extension end of the shaft of two driving motors is away from each other；It drives
Dynamic motor, planetary reducer, drive shaft and wheel are successively sequentially connected.
The vehicle is equipped with above-mentioned planetary reducer, has the identical technical characteristic of above-mentioned planetary reducer,
It is able to solve identical technical problem, reaches identical technical effect.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Structure specifically noted by book, claims and attached drawing is achieved and obtained.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure principle chart of planetary reducer provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the dynamical system of vehicle provided by the embodiment of the utility model.
Icon: 001- planetary reducer；100- planetary gear mechanism；110- sun gear；120- planetary gear；130- tooth
Circle；140- planet carrier；141- bracket；142- connecting rod；002- driving motor；003- drive shaft；004- wheel.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1 and embodiment 2 are described in detail with reference to the accompanying drawing: Fig. 1 provides for the utility model embodiment
Planetary reducer 001 structure principle chart；Fig. 2 is the knot of the dynamical system of vehicle provided by the embodiment of the utility model
Structure schematic diagram.
Embodiment 1
A kind of planetary reducer 001 is present embodiments provided, Fig. 1 in Figure of description is please referred to.
The planetary reducer 001, including planetary gear mechanism 100, planetary gear mechanism 100 include sun gear 110,
Planetary gear 120, gear ring 130 and planet carrier 140.
Multiple planetary gear mechanisms 100 are alternatively arranged, and axis is overlapped；The planet carrier 140 of planetary gear mechanism 100 is with after
The sun gear 110 of the planetary gear mechanism 100 of Fang Xianglin connects；The gear ring 130 of each planetary gear mechanism 100 is fixed；It is dynamic
The sun gear 110 of power from the planetary gear mechanism 100 of front end inputs, from the planet carrier of the planetary gear mechanism 100 of rearmost end
140 outputs.
Since the gear ring 130 of each planetary gear mechanism 100 is fixed, power inputs from sun gear 110, from planet carrier 140
Output, so the transmission ratio of each planetary gear mechanism 100 is K+1, wherein K is planetary gear characterisitic parameter, and value is gear ring
130 number of teeth divided by sun gear 110 the number of teeth.
The transmission ratio of the planetary reducer 001 is the product of the transmission ratio of each planetary gear mechanism 100.
The planetary reducer 001 is installed on the vehicle using ordinary motor, due to the planetary reducer 001
To decelerating through motor and torque can be increased, so, compared to hub motor, the vehicle pair of the planetary reducer 001 is installed
The performance requirement of motor is lower.
Compared to parallel shaft (speed) reducer, since the planetary reducer 001 is due to using multiple rows of planetary gear mechanism
100, in the case where reaching same gear ratios, the radial and axial size of the planetary reducer 001 is all smaller, is convenient for vehicle
Whole design and integrated.
In the optinal plan of the present embodiment, more preferably,
The planetary reducer 001 includes two planetary gear mechanisms 100.
In the case where realizing with parallel shaft (speed) reducer same gear ratios, two planetary gear mechanisms 100 can guarantee diameter
It is smaller to size and axial dimension.
In the optinal plan of the present embodiment, more preferably,
The sun gear 110 of two planetary gear mechanisms 100, the number of teeth of planetary gear 120 and gear ring 130 and modulus correspond to phase
Deng.That is, the number of teeth and modulus of the sun gear 110 of two planetary gear mechanisms 100 are equal, the row of two planetary gear mechanisms 100
The number of teeth and modulus of star-wheel 120 are equal, and the number of teeth and modulus of the gear ring 130 of two planetary gear mechanisms 100 are equal.
The number of teeth and modulus of gear ring 130 are equal to each other the outer diameter phase so that the gear ring 130 of two planetary gear mechanisms 100
Deng, so that the gear ring 130 of two planetary gear mechanisms 100 can be fixed simultaneously, the shape of the planetary reducer 001
Size is more regular, is conducive to the design of shell.
Above structure is also beneficial to produce and process, and need to only produce the sun gear 110, planetary gear 120 and gear ring of same size
130.
The transmission ratio of planetary reducer 001 with the structure is (K+1)2, wherein K is planetary gear characteristic ginseng
Number, value are the number of teeth of gear ring 130 divided by the number of teeth of sun gear 110.
In the optinal plan of the present embodiment, more preferably,
130 integrally connected of gear ring of two planetary gear mechanisms 100.
When manufacturing, a gear ring 130 can be manufactured, two planetary gear mechanisms 100 share, when saving manufacture
Between, it can guarantee the concentricity of two planetary gear mechanisms 100, reduce the vibration in 001 course of work of planetary reducer
It is dynamic.
In the optinal plan of the present embodiment, more preferably,
Planetary gear mechanism 100 includes three planetary gears 120, and three planetary gears 120 are distributed in sun gear 110 and gear ring
Between 130.
Three uniformly distributed planetary gears 120 can securely support sun gear 110, while make the axis and gear ring of sun gear 110
130 axis is overlapped, and realizes power smooth transport.
Certainly, planetary gear mechanism 100 can also include the planetary gear 120 of other quantity.For example, planetary gear mechanism
100 include four planetary gears 120, and four planetary gears 120 are distributed between sun gear 110 and gear ring 130.For another example planet tooth
Taking turns mechanism 100 includes six planetary gears 120, and six planetary gears 120 are distributed between sun gear 110 and gear ring 130.
In the optinal plan of the present embodiment, more preferably,
Planet carrier 140 includes bracket 141 and connecting rod 142；Planetary gear 120 is mounted on bracket 141；Connecting rod 142
One end is connect with the middle part of bracket 141, and the sun gear 110 of the other end planetary gear mechanism 100 adjacent with rear connects.
There are three branch, each branches to be mounted on a planetary gear 120 for bracket 141.Bracket 141 makes three planetary gears 120
Always it is distributed between sun gear 110 and gear ring 130, planetary gear 120 is avoided to deviate during the work time.
In the optinal plan of the present embodiment, more preferably,
External splines is arranged in the end of the separate bracket 141 of connecting rod 142, and the adjacent planetary gear mechanism 100 in rear is too
The splined hole of sun wheel 110 middle part setting and external splines cooperation；Splined hole is protruded into one end of the setting external splines of connecting rod 142.
The sun gear 110 of the planetary gear mechanism 100 adjacent with rear of connecting rod 142 makes the planet tooth by spline connection
Wheel decelerator 001 can be dismounted easily.
Certainly, the connecting rod 142 can also the planetary gear mechanism 100 adjacent with rear by other means sun gear
110 are attached.For example, the modes such as welding, flat key connection, elastic conjunction.
In the optinal plan of the present embodiment, more preferably,
The planetary reducer 001 further includes shell, and gear ring 130 is installed on the inner wall of shell.
Shell is fixedly connected with the shell of the driving motor 002 of vehicle, and then realizes the planetary reducer 001 in work
The fixation of gear ring 130 when making.
Embodiment 2
The present embodiment provides a kind of vehicle, Fig. 2 in Figure of description is please referred to.
The vehicle includes the planetary gear speed-reduction that driving motor 002, drive shaft 003, wheel 004 and embodiment 1 provide
Device 001.
Two driving motors 002 are coaxially disposed side by side, and the extension end of the shaft of two driving motors 002 is away from each other；It drives
Dynamic motor 002, planetary reducer 001, drive shaft 003 and wheel 004 are successively sequentially connected.
Two driving motors 002 are installed on subframe or vehicle body.
The vehicle is equipped with above-mentioned planetary reducer 001, has the identical technology of above-mentioned planetary reducer 001
Feature is able to solve identical technical problem, reaches identical technical effect.
In the optinal plan of the present embodiment, more preferably,
The shaft of driving motor 002 is connect with planetary reducer 001 by spline.
Spline driving motor 002 easy to connect is connect with planetary gear, only need to be by the shaft inserting line of driving motor 002
Connection can be realized in star gear reduction unit 001.
It is connected between planetary reducer 001 and drive shaft 003 also by spline.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of planetary reducer, which is characterized in that including planetary gear mechanism, the planetary gear mechanism includes the sun
Wheel, planetary gear, gear ring and planet carrier；
Multiple planetary gear mechanisms are alternatively arranged, and axis is overlapped；The planet carrier of the planetary gear mechanism is with after
The sun gear of the planetary gear mechanism of Fang Xianglin connects；The gear ring of each planetary gear mechanism is solid
It is fixed；
The sun gear of power from the planetary gear mechanism of front end inputs, from the planetary gear mechanism of rearmost end
The planet carrier output.
2. planetary reducer according to claim 1, which is characterized in that including two planetary gear mechanisms.
3. planetary reducer according to claim 2, which is characterized in that two planetary gear mechanisms it is described
Sun gear, the number of teeth of the planetary gear and the gear ring and modulus are equal to each other.
4. planetary reducer according to claim 3, which is characterized in that two planetary gear mechanisms it is described
Gear ring integrally connected.
5. planetary reducer according to claim 4, which is characterized in that the planetary gear mechanism includes three institutes
Planetary gear is stated, three planetary gears are distributed between the sun gear and the gear ring.
6. planetary reducer according to claim 5, which is characterized in that the planet carrier includes bracket and connection
Bar；
The planetary gear is mounted on the bracket；One end of the connecting rod is connect with the middle part of the bracket, the other end with
The sun gear of the adjacent planetary gear mechanism in rear connects.
7. planetary reducer according to claim 6, which is characterized in that the separate bracket of the connecting rod
External splines is arranged in end, and setting cooperates with the external splines in the middle part of the sun gear of the adjacent planetary gear mechanism in rear
Splined hole；
The splined hole is protruded into one end of the setting external splines of the connecting rod.
8. planetary reducer according to claim 7, which is characterized in that further include shell, the gear ring is installed on
The inner wall of the shell.
9. a kind of vehicle, which is characterized in that including driving motor, drive shaft, wheel and such as any one of claim 1-8 institute
The planetary reducer stated；
Two driving motors are coaxially disposed side by side, and the extension end of the shaft of two driving motors is away from each other；
The driving motor, the planetary reducer, the drive shaft and the wheel are successively sequentially connected.
10. vehicle according to claim 9, which is characterized in that the shaft of the driving motor and the planetary gear reduction
Fast device is connected by spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477810.6U CN208951233U (en) | 2018-09-10 | 2018-09-10 | Planetary reducer and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821477810.6U CN208951233U (en) | 2018-09-10 | 2018-09-10 | Planetary reducer and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN208951233U true CN208951233U (en) | 2019-06-07 |
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ID=66737520
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821477810.6U Active CN208951233U (en) | 2018-09-10 | 2018-09-10 | Planetary reducer and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112440731A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Hub reduction gear, hub power assembly and vehicle |
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2018
- 2018-09-10 CN CN201821477810.6U patent/CN208951233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112440731A (en) * | 2019-08-27 | 2021-03-05 | 比亚迪股份有限公司 | Hub reduction gear, hub power assembly and vehicle |
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