CN207830500U - A kind of deceleration differential of planetary gear type - Google Patents
A kind of deceleration differential of planetary gear type Download PDFInfo
- Publication number
- CN207830500U CN207830500U CN201721870170.0U CN201721870170U CN207830500U CN 207830500 U CN207830500 U CN 207830500U CN 201721870170 U CN201721870170 U CN 201721870170U CN 207830500 U CN207830500 U CN 207830500U
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- gear
- planetary gear
- differential
- drive
- drive axle
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Abstract
The deceleration differential of the planetary gear type of the utility model includes drive shaft, planetary gear train and differential mechanism, planetary gear train is connect with differential mechanism, drive shaft is hollow shaft, the main rotating shaft of drive shaft, planetary gear train and differential mechanism is coaxial, first drive axle of vehicle is connect across drive shaft with planetary gear train, second drive axle of vehicle is plugged in differential mechanism, and the first drive axle and the second drive axle are coaxially disposed, the first drive axle and the relatively independent movement of drive shaft；Planetary gear train drives differential mechanism movement, differential mechanism to drive the first drive axle and the movement of the second drive axle；The electric power rotating speed of drive shaft is transmitted to differential casing after slowing down by planetary gear train, after differential mechanism differential, is transmitted to the first, second gear, realizes that the first second gear realizes differential automatically while output torque；Vehicle axles and the planetary gear carrier central shaft hole of drive shaft, speed reducer are co-axially mounted, compact-sized, and technique simplifies, and installation operation is convenient.
Description
Technical field
The utility model is related to differential art field more particularly to a kind of deceleration differentials of planetary gear type.
Background technology
Turn inside diameter travel or on uneven road surface when driving, left and right wheels need to be made with different rotating speeds by differential design
It rolls, to ensure that both sides driving wheel makees PURE ROLLING, the effect of differential mechanism is to adjust the speed discrepancy of left and right wheels；
Realize that torque output, reduction box are connected to vehicle wheel through reduction box after vehicular electric machine power output in the prior art
Axis, is still further arranged the speed discrepancy that differential mechanism adjusts left and right wheels, and motor driving shaft, reduction box, differential mechanism respectively have rotation master
Axis, each live spindle are not same axises with vehicle axles, and connection structure is complicated, and bulky, occupied space is more, installation operation
It is cumbersome.
Utility model content
The utility model provides one kind can realize differential automatically while output torque, compact-sized, small, peace
Fill the deceleration differential of easy to operate planetary gear type；Including drive shaft, planetary gear train and differential mechanism, the planetary gear train with
The differential mechanism connection, the drive shaft are hollow shaft, the main rotation of the drive shaft, the planetary gear train and the differential mechanism
Axis is coaxial, and the first drive axle of vehicle is connect across drive shaft with planetary gear train, and the second drive axle of vehicle is plugged in differential mechanism
Interior, first drive axle is coaxially disposed with second drive axle, and first drive axle and the drive shaft are relatively independent
Movement；The planetary gear train drives the differential mechanism movement, the differential mechanism to drive first drive axle and described second
Drive axle moves.
As a further improvement, the planetary gear train includes gear ring, first gear holder group, second gear holder group；Institute
First gear holder group is stated to include first gear holder and be sheathed on the first sun gear of first gear holder and several first
Planetary gear, every 1 first planetary gear are connected with the gear ring；The second gear holder group include second gear holder,
Second sun gear and several second planetary gears, every 1 second planetary gear are connected with the gear ring；The second gear holder
It is connected with second sun gear.
As a further improvement, the differential mechanism includes first gear, second gear, cross axle, several the third line star-wheels
And differential casing；The first gear, the second gear, the cross axle, several the third line star-wheels are placed in described
In differential carrier body；The differential casing is connected with the second gear holder；
The first gear is connected with first drive axle, and the second gear is connected with second drive axle
It connects；Each axle portion of the cross axle is arranged there are one the third line star-wheel；Each the third line star-wheel is respectively with described
One gear, the second gear are meshed.
As a further improvement, the first gear, the second gear, the first planetary gear, the second planetary gear, the third line
Star-wheel is all made of bevel gear.
As a further improvement, the drive shaft includes first connecting portion, the first connecting portion and first sun
Wheel is connected.
As a further improvement, the first connecting portion is external splines structure, first sun gear is the internal spline sun
Wheel.
The beneficial effects of the utility model are the deceleration differential of planetary gear type compared to the prior art, motor output
Power rotating speed slowed down by planetary gear train after be transmitted to differential casing, after differential mechanism differential, be transmitted to first, second
Gear realizes that the first, second gear output rotating speed is inconsistent, realizes first gear, second gear while output torque certainly
It is dynamic to realize differential, meet the needs of automobile both sides vehicle wheel rotational speed is different；Drive shaft vehicle axles and motor hollow drive shaft, planet
The first gear holder group of train, the central shaft hole of second gear holder group are co-axially mounted, compact-sized, small, technique letter
Change, installation operation is convenient.
Description of the drawings
Fig. 1 is cross-sectional view of the utility model along drive shaft axial direction.
Main element symbol
Drive shaft 1
First drive axle 19
Second drive axle 20
Differential casing 14
Second gear holder 7
First gear holder 5
First sun gear 2
Second sun gear 13
First gear 15
Second gear 16
The third line star-wheel 18
First planetary gear 4
Second planetary gear 6
Gear ring 3
Cross axle 17
Specific implementation mode
To keep the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.The utility model
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Mode shall fall within the protection scope of the present invention.Therefore, the embodiment to the utility model provided in the accompanying drawings below
Detailed description be not intended to limit claimed the scope of the utility model, but be merely representative of the selected of the utility model
Embodiment.Embodiment in the utility model, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship of the instructions such as term "upper", "lower"
For orientation or positional relationship shown in the drawings, be merely for convenience of describing the present invention and simplifying the description, rather than indicate or
It implies that signified equipment or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as
Limitations of the present invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Referring to Fig. 1, the present embodiment provides a kind of deceleration differential of planetary gear type, including drive shaft 1, planetary gear train
And differential mechanism, planetary gear train are connect with differential mechanism, drive shaft 1 is hollow shaft, the main rotation of drive shaft 1, planetary gear train and differential mechanism
Shaft is coaxial, and the first drive axle 19 of vehicle is connect across drive shaft 1 with planetary gear train, and the second drive axle 20 of vehicle is plugged in
In differential mechanism, the first drive axle 19 and the second drive axle 20 are coaxially disposed, the first drive axle 19 and 1 relatively independent fortune of drive shaft
It is dynamic；Planetary gear train drives differential mechanism movement, differential mechanism to drive the first drive axle 19 and the movement of the second drive axle 20.Drive shaft 1,
First drive axle 19, the second drive axle 20, planetary gear train coaxial arrangement so that the torque that drive shaft 1 is transmitted passes through planetary gear train
After deceleration, the first, second gear 16 output torque simultaneously is realized, and by differential mechanism differential, realize first gear 15 and the
Two gears 16 realize differential automatically while output torque.Drive shaft 1 includes first connecting portion, and first connecting portion and first is too
Sun wheel 2 is connected；First connecting portion is external splines structure, and the first sun gear 2 is internal spline sun gear.
Planetary gear train includes gear ring 3,5 groups of 15 holder of first gear, 7 groups of 16 holder of second gear；15 holder 5 of first gear
Group includes 15 holder 5 of first gear and is sheathed on the first sun gear 2 of 15 holder 5 of first gear and several first planetary gears 4,
Every 1 first planetary gear is connected with gear ring 3；7 groups of 16 holder of second gear includes 16 holder 7 of second gear, second sun
Wheel 13 and several second planetary gears 6, every 1 second planetary gear 6 are connected with gear ring 3；16 holder 7 of second gear and second is too
Sun wheel 13 is connected.
In the present embodiment, 3 remains stationary state of gear ring, in the transmittance process of gear stand group, sun gear drives row
Star wheel movement makes planetary gear rotation in gear ring 3, planetary gear drive gear stand rotation, realize the transmission of torque.
Differential mechanism includes first gear 15, second gear 16, cross axle 17, several the third line star-wheels 18 and differential carrier
Body 14；First gear 15, second gear 16, cross axle 17, several the third line star-wheels 18 are placed in differential casing 14；Differential
Device shell 14 is connected with 16 holder 7 of second gear；First gear 15 is connected with the first drive axle 19, second gear 16 and
Two drive axles 20 are connected；Each axle portion of cross axle 17 is arranged there are one the third line star-wheel 18；Each the third line star-wheel 18
It is meshed respectively with first gear 15, second gear 16.
The central shaft hole of cross axle 17 and 19 second drive axle 20 of the first drive axle coaxial arrangement and cross axle 17 at least
Two axle portions are connected with differential casing 14；In torque transmittance process, because of differential casing 14 and 16 holder 7 of second gear
It is fixedly connected, when 16 holder 7 of second gear is rotated around its body central point, differential casing 14 rotates together with, and by torque
It is transferred to first gear 15 and second gear 16 by the third line star-wheel 18；First gear 15, second gear 16 are internal spline
Bevel gear, female spline portion do not connect with the one end fits of the first drive axle 19, the second drive axle 20 so that drive axle rotate,
Transmit torque.And select bevel gear that can further reduce differential mechanism volume；Differential casing 1414 passes through screw and deceleration
The planetary gear carrier 7 of machine is fixedly connected, and connection is reliable, and stability is good.
It is transmitted in the present embodiment for convenience of torque, the first planetary gear 4, the second planetary gear 6, the third line star-wheel 18 are all made of
Bevel gear.
Drive shaft 1 includes first connecting portion, and first connecting portion is connected with the first sun gear 2；
Referring to Fig. 1, the present embodiment operation principle, drive shaft 11 transfers torque to the first sun gear 2, the first sun gear
2 transfer torque to the first planetary gear 4, and the first planetary gear 4 transfers torque to 15 holder 5 of first gear, first gear 15
Frame 5 transfers torque to the second sun gear 13, and the second sun gear 13 transfers torque to the second planetary gear 6, the second planetary gear
16 holder 7 of second gear is transferred torque to, planetary gear train (reduction box) transfers torque to difference by 16 holder 7 of second gear
Fast device shell 14, differential casing 14 transfer torque to differential mechanism first gear by the third line star-wheel 18 and cross axle 17
15 and second gear 16, first gear 15 is exported from the speed reducer other side and is turned round from speed reducer side output torque, second gear 16
Square.
After motor output speeds are slowed down by planetary gear train, differential casing 14 is transmitted to after differential mechanism differential
One gear 15, second gear 16 realize that first gear 15, the output rotating speed of second gear 16 are inconsistent, meet two sidecar wheel of automobile
The different demand of rotating speed.
Planetary gear speed-reduction differential mechanism after torque is slowed down by planetary gear train, realizes that first gear 15, second gear 16 are same
When output torque, and by differential mechanism differential, realize that first gear 15 and second gear 16 are automatic while output torque
Realize differential.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent substitution, improvement and etc. done should be included in the utility model protection
Within the scope of.
Claims (6)
1. a kind of deceleration differential of planetary gear type, which is characterized in that described including drive shaft, planetary gear train and differential mechanism
Planetary gear train is connect with the differential mechanism, and the drive shaft is hollow shaft, the drive shaft, the planetary gear train and the differential
The main rotating shaft of device is coaxial, and the first drive axle of vehicle is connect across drive shaft with planetary gear train, and the second drive axle of vehicle is inserted
It is located in differential mechanism, first drive axle is coaxially disposed with second drive axle, first drive axle and the driving
The relatively independent movement of axis；The planetary gear train drives the differential mechanism movement, the differential mechanism drive first drive axle with
And the second drive axle movement.
2. the deceleration differential of planetary gear type according to claim 1, which is characterized in that the planetary gear train includes tooth
Circle, first gear holder group, second gear holder group；The first gear holder group includes first gear holder and is sheathed on
First sun gear of first gear holder and several first planetary gears, every 1 first planetary gear are connected with the gear ring；
The second gear holder group includes second gear holder, the second sun gear and several second planetary gears, every 1 second planetary gear
It is connected with the gear ring；The second gear holder is connected with second sun gear.
3. the deceleration differential of planetary gear type according to claim 2, it is characterised in that：The differential mechanism includes the first tooth
Wheel, second gear, cross axle, several the third line star-wheels and differential casing；The first gear, the second gear, institute
State cross axle, several the third line star-wheels are placed in the differential carrier body；The differential casing and the second gear branch
Frame is connected；
The first gear is connected with first drive axle, and the second gear is connected with second drive axle；Institute
The each axle portion for stating cross axle is arranged there are one the third line star-wheel；Each the third line star-wheel respectively with first tooth
Wheel, the second gear are meshed.
4. the deceleration differential of planetary gear type according to claim 3, it is characterised in that：The first gear, described
Two gears, the first planetary gear, the second planetary gear, the third line star-wheel are all made of bevel gear.
5. the deceleration differential of planetary gear type according to claim 2, which is characterized in that the drive shaft includes first
Interconnecting piece, the first connecting portion are connected with first sun gear.
6. the deceleration differential of planetary gear type according to claim 5, which is characterized in that the first connecting portion is outer
Spline structure, first sun gear are internal spline sun gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721870170.0U CN207830500U (en) | 2017-12-27 | 2017-12-27 | A kind of deceleration differential of planetary gear type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721870170.0U CN207830500U (en) | 2017-12-27 | 2017-12-27 | A kind of deceleration differential of planetary gear type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830500U true CN207830500U (en) | 2018-09-07 |
Family
ID=63389907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721870170.0U Expired - Fee Related CN207830500U (en) | 2017-12-27 | 2017-12-27 | A kind of deceleration differential of planetary gear type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253111A (en) * | 2017-12-27 | 2018-07-06 | 孝感孝航机电科技有限公司 | A kind of deceleration differential of planetary gear type |
| CN112192423A (en) * | 2020-10-12 | 2021-01-08 | 河南理工大学 | Multi-type multi-cutter simultaneous polishing device |
-
2017
- 2017-12-27 CN CN201721870170.0U patent/CN207830500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253111A (en) * | 2017-12-27 | 2018-07-06 | 孝感孝航机电科技有限公司 | A kind of deceleration differential of planetary gear type |
| CN112192423A (en) * | 2020-10-12 | 2021-01-08 | 河南理工大学 | Multi-type multi-cutter simultaneous polishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20201227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |