CN205534104U - Simple and easy differential mechanism - Google Patents
Simple and easy differential mechanism Download PDFInfo
- Publication number
- CN205534104U CN205534104U CN201620269211.XU CN201620269211U CN205534104U CN 205534104 U CN205534104 U CN 205534104U CN 201620269211 U CN201620269211 U CN 201620269211U CN 205534104 U CN205534104 U CN 205534104U
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- differential mechanism
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- planetary gear
- mechanism frame
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Abstract
The utility model relates to a vehicle power transmission device discloses a simple and easy differential mechanism, and its structure is including fixing respectively at inboard all around planetary gear A, planetary gear B, left side differential side gear, the right side differential side gear of differential mechanism frame, and star gear A and planetary gear B are located the offside, respectively with left side differential side gear and the meshing of right side differential side gear. Planetary gear axle both ends are fixed on the frame of differential mechanism frame, and planetary gear A and planetary gear B install respectively in the both ends of planetary gear axle to can use the planetary gear axle for central rotation, left side differential side gear and right side differential side gear are connected respectively to left half axle and right semi -axis, and semi -axis cover pipe box is established on left half axle or right semi -axis to frame attach with the differential mechanism frame. The utility model discloses regard as the power input with the semi -axis sleeve pipe, simplified differential mechanism's structure, reduced the manufacturing degree of difficulty and cost, improved feasibility and practicality.
Description
Technical field
This utility model belongs to vehicle power transmitting device field, is specially a kind of differential mechanism, drives the differential mechanism of simple vehicle in particular for semiaxis.
Background technology
Vehicle is when turning round, and the path of wheel is circular arc.Such as, when vehicle is turned to the left, the central point of circular arc is positioned at left side；Because left side vehicle is positioned at inner side, right side wheels is positioned at outside, and in the case of angular velocity is the same, in the identical time, the arc length that right-hand wheel is walked is more than left-hand wheel.In order to balance this difference it is necessary to a kind of device makes left side wheel spin down a bit, the faster rotational speed of the right wheel a bit, makes up the difference of distance with different rotating speeds.Equally, during vehicle turns right, the central point of circular arc is positioned at right side, then need the rotating speed of wheel on the right of reducing, and the wheel rotor speed making the left side is fast.
The invention of differential mechanism (differential), just it is because when automobile turning, the path that outside wheel is walked is bigger than the path that inner side wheel is walked, if so smooth and easy and accurate turning thought by automobile, just need a device can change and allow interior outboard wheels to rotate with different speed, thus make up the difference of distance with different rotating speeds.
The principle of differential mechanism is, utilizes planetary gear rotation and revolution characteristic, is in straight travel state at vehicle, and planetary gear simply revolves round the sun around differential mechanism rotating axis in company with planet carrier, the synchronized rotation of two-semiaxle gear, and its straight line travels.When the vehicle is turning, the existing revolution of planetary gear, there is again rotation, make two-semiaxle gear with the most synchronized rotation, it is allowed to two-wheeled rotates with different rotating speeds.
The simple vehicle such as general models dolly, tricycle, because of its simple in construction, more options semiaxis is driven to main, easily to realize.Semiaxis drives exactly for ensureing that driving wheel can be in the case of not interrupting power transmission, it is allowed to two wheels rotate with different angular velocity, are disconnected by the axle connecting two-wheeled, only deliver power to one of them wheel.
The drawback of this type of drive is unilateral wheel drive so that car load is by force unbalance, and directivity is poor, easily produces lateral deviation when trolley travelling, makes the track of dolly deviation setting, makes the tire wear of driving wheel more serious etc. than opposite side simultaneously.
Accordingly, it would be desirable to prior art is improved, with the problem existing for solution.
Utility model content
This utility model aims to provide a kind of Simple differential mechanism, in particular for half shaft-driven simple vehicle, such as the differential mechanism of model car, tricycle, carriage, electric motor car etc..
The structure of this Simple differential mechanism includes differential mechanism frame, planetary gear A, planetary gear B, left hand side half shaft gear, right axle gear, left half axle, right axle shaft and axle tube；Planetary gear A, planetary gear B, left hand side half shaft gear and right axle gear lay respectively at surrounding inside the framework of differential mechanism frame, and planetary gear A and planetary gear B is positioned at offside, engages with left hand side half shaft gear and right axle gear respectively.
Described planetary gear axle runs through differential mechanism frame, and two ends are fixed on the framework of differential mechanism frame；Described planetary gear A and planetary gear B is respectively arranged in the two ends of planetary gear axle, is positioned at inside the framework of differential mechanism frame, and can rotation centered by planetary gear axle；Preferably, planetary gear axle is fixed on the framework of differential mechanism frame by screw or bolt arrangement.Preferably, described planetary gear axle A and planetary gear axle B by and be fixed on the framework of differential mechanism frame with screw or bolt arrangement.
Described left half axle one end penetrates differential mechanism frame and is connected with left hand side half shaft gear, and one end of described right axle shaft penetrates differential mechanism frame and is connected with right axle gear；The other end of described left half axle and right axle shaft is connected respectively to left wheel and right wheel.
Described axle tube is set on left half axle or right axle shaft, and is connected with the framework of differential mechanism frame, makes axle tube be connected as a single entity with differential mechanism frame.Axle tube is connected with actuating unit or drive mechanism.Preferably, axle tube can be connected with differential mechanism frame by welding manner, or in the framework of one end embedding differential mechanism frame of axle tube, and fix with screw or bolt arrangement.
Preferably, the framework of differential mechanism frame is square frame-shaped, annular or oval ring, more preferably square frame-shaped.
Preferably, described shaft angle S=90 ° between planetary gear A, planetary pinion gear B and left hand side half shaft gear and right axle gear, i.e. it is mutually perpendicular to.
Preferably, the structure of this Simple differential mechanism also includes adjusting pad；Adjustment pad is set between left hand side half shaft gear and right axle gear and the inner side of corresponding differential mechanism frame, for adjusting the distance between left hand side half shaft gear and differential mechanism frame.
Exterior power passes to differential mechanism frame by sleeve pipe, makes differential mechanism frame rotate centered by the axial direction of axle tube, two axle shaft gear concomitant rotation, drives left and right wheels to rotate, makes vehicle advance.During straight-line travelling, because two side drive wheel resistances are identical, planetary gear slides without relative with axle shaft gear, so two planetary gears only revolve round the sun, rotation does not occur.During Vehicular turn, because two side drive wheel resistances are different, outboard wheels, there are the trend of sliding, inboard wheel, have the trend trackslipped, i.e. outboard wheels resistance is little, and inboard wheel resistance is big, makes planetary gear except revolution is also to occur rotation.
This adjustment of differential mechanism is automatic, refers here to " minimum stream power ", and namely on the earth, all objects tend to the state of energy consumption minimization.Wheel also can automatically tend to the state that energy consumption is minimum when turning, and automatically adjusts the rotating speed of left and right wheels according to radius of turn.When cornering, owing to outboard wheel has the sliding phenomenon dragged, nearside wheel has the phenomenon trackslipped, two driving wheels now will produce the additional force that both direction is contrary, due to " minimum stream power ", the rotating speed necessarily causing two sidecar wheels is different, thus destroys the equilibrium relation of three, and reflect on axle shaft gear by semiaxis, force planetary gear to produce rotation.
This utility model utilizes epicyclic gearing wheel rotation, revolution characteristic, effectively solves inside and outside wheel velocity during the turning of the simple vehicle such as various model dollies, tricycle different, and the problem that there is differential accurately distributes moment of torsion；By axle tube is connected with row differential mechanism frame, using axle tube as power intake, directly it is connected with gear, belt wheel, simplifies the structure of differential mechanism, reduce manufacture difficulty and cost, improve feasibility and practicality.
This patent can be widely used in model dolly, three-wheel, carriage, electric motor car etc., promotes its steering behaviour, effectively reduces wheel-slip, reduces lateral deviation.
Accompanying drawing explanation
Fig. 1 is the top view of this utility model differential mechanism
Fig. 2 is the three-dimensional structure diagram of this utility model differential mechanism
1 axle tube；201 planetary gear A, 202 planetary gear B；3 planetary gear axles, 401 left half axles, 402 right axle shafts, 501 left hand side half shaft gears, 502 right axle gears, 6 differential mechanism frames, 701 screw A, 702 screw B, 703 screw C, 801 adjust pad A, and 802 adjust pad B
Detailed description of the invention
A kind of Simple differential mechanism, structure includes: differential mechanism frame 6, planetary gear A201, planetary gear B 202, planetary gear axle 3, left half axle gear 501, right axle gear 502, left half axle 401, right axle shaft 402 and axle tube 1；The framework of differential mechanism frame is square frame-shaped.Such as Fig. 1 and Fig. 2, planetary gear A201, left hand side half shaft gear 501, planetary gear B 202 and right axle gear 502 lay respectively at surrounding inside the framework of differential mechanism frame, and planetary gear A and planetary gear B is positioned at offside, engage with left hand side half shaft gear and right axle gear respectively.Shaft angle S=90 ° between planetary gear A and planetary gear B with adjacent left hand side half shaft gear and right axle tooth, is i.e. mutually perpendicular to.
Planetary gear axle 3 runs through differential mechanism frame, and two ends are fixed on the framework of differential mechanism frame by screw A701, screw B 702.
One end of left half axle 401 penetrates differential mechanism frame and is connected with left hand side half shaft gear 501, and the other end is connected to left wheel；One end of right axle shaft 402 penetrates differential mechanism frame and is connected with right axle gear 502, and the other end is connected to right wheel.It is additionally provided with adjustment pad A801 between inside the framework of left hand side half shaft gear, right axle gear and differential mechanism frame and adjusts pad B 802, for adjusting and buffer the framework of axle shaft gear and differential mechanism frame.
Half-axile sleeve pipe box 1 is located on right axle shaft 402, and one end embeds in the framework of differential mechanism frame, and is fixed on the framework of differential mechanism frame with screw C 703, makes axle tube be connected as a single entity with differential mechanism frame.Axle tube is connected with actuating unit or drive mechanism.
Exterior power passes to differential mechanism frame by axle tube, makes differential mechanism frame rotate centered by the axial direction of axle tube, two axle shaft gear concomitant rotation, drives left and right wheels to rotate, makes vehicle advance.Meanwhile, differential mechanism deckle strap moves planetary gear axle and the planetary gear A being attached thereto and planetary gear B, revolves round the sun with the line of two axle shaft gears for axle.
When straight line is advanced, without relatively sliding between two planetary gears and two axle shaft gears, with identical speed and torque drive left and right two-wheeled, its straight line is made to advance.When cornering, different by resistance because of left and right two-wheeled so that planetary gear while revolving round the sun, also produces rotation in company with planetary gear axle centered by planetary gear axle respectively, make wheel turn with moment of torsion at different rates.
Vehicle path of wheel when turning round is circular arc, such as, when vehicle turns left, the central point of circular arc is in left side, and in the identical time, the camber line distance that right-hand wheel is walked is longer than left-hand wheel.Owing to the rightest wheel of outboard wheel has the sliding phenomenon dragged, nearside wheel i.e. left wheel has the phenomenon trackslipped, two wheels now will produce the additional force that both direction is contrary；Due to " minimum stream power ", the rotating speed necessarily causing two sidecar wheels is different, thus destroy equilibrium relation between wheel, left and right semiaxis and two axle shaft gears, and reflect on the axle shaft gear of both sides by semiaxis, force planetary gear A and planetary gear B also to produce rotation while revolution on planet gear shaft, make wheel turn with moment of torsion at different rates, the rotating speed of the left-hand wheel that slows down, accelerate the rotating speed of right-hand wheel, make up the difference of the distance that left and right wheel is walked with different rotating speeds.
Claims (8)
1. a Simple differential mechanism, its structure includes differential mechanism frame (6), planetary gear A (201), planetary gear B (202), left hand side half shaft gear (501), right axle gear (502), left half axle (401), right axle shaft (402) and axle tube (1)；It is characterized in that, described planetary gear A (201), planetary gear B (202), left hand side half shaft gear (501) and right axle gear (502) is separately fixed at the surrounding of differential mechanism frame (6) inner side, and planetary gear A (201) and planetary gear B (202) is positioned at offside, engage with left hand side half shaft gear (501) and right axle gear (502) respectively；
Described planetary gear axle (3) runs through differential mechanism frame, and two ends are fixed on the framework of differential mechanism frame (6)；Described planetary gear A (201) and planetary gear B (202) is respectively arranged in the two ends of planetary gear axle (3), and can rotation centered by planetary gear axle (3)；
Described left half axle (401) is connected with left hand side half shaft gear (501), and described right axle shaft (402) is connected with right axle gear (502)；
Described axle tube (1) is located on left half axle (401) or right axle shaft (402), and be connected with the framework of differential mechanism frame (6), make axle tube (1) be connected as a single entity with differential mechanism frame (6).
2. Simple differential mechanism described in claim 1, it is characterised in that described planetary gear A (201) and planetary gear B (202) are fixed on the framework of differential mechanism frame (6) by screw or bolt arrangement.
3. Simple differential mechanism described in claim 1, it is characterized in that, described axle tube (1) is connected with differential mechanism frame (6) by welding manner, or in the framework of axle tube embedding differential mechanism frame (6), and fix with screw or bolt arrangement.
4. Simple differential mechanism described in claim 1, it is characterised in that described axle tube (1) is connected with actuating unit or drive mechanism.
5. Simple differential mechanism described in claim 1, it is characterised in that the other end of described left half axle (401) and right axle shaft (402) is connected respectively to left wheel and right wheel.
6. Simple differential mechanism described in claim 1, it is characterised in that the framework of described differential mechanism frame (6) is square frame-shaped, annular or oval ring.
7. Simple differential mechanism described in claim 1, it is characterised in that described planetary gear A (201), the shaft angle between planetary gear B (202) and left hand side half shaft gear and right axle gear are 90 °.
8. Simple differential mechanism described in claim 1, it is characterised in that adjustment pad is set between left hand side half shaft gear and right axle gear and the inner side of corresponding differential mechanism frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620269211.XU CN205534104U (en) | 2016-04-01 | 2016-04-01 | Simple and easy differential mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620269211.XU CN205534104U (en) | 2016-04-01 | 2016-04-01 | Simple and easy differential mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN205534104U true CN205534104U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620269211.XU Expired - Fee Related CN205534104U (en) | 2016-04-01 | 2016-04-01 | Simple and easy differential mechanism |
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| CN (1) | CN205534104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895840A (en) * | 2017-12-07 | 2019-06-18 | 宝沃汽车（中国）有限公司 | The adjustable steering column of turning rate and the vehicle with it |
-
2016
- 2016-04-01 CN CN201620269211.XU patent/CN205534104U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109895840A (en) * | 2017-12-07 | 2019-06-18 | 宝沃汽车（中国）有限公司 | The adjustable steering column of turning rate and the vehicle with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210401 |