CN1033406A - The automatic antiskid differential of automobile and wheeled tractor - Google Patents
The automatic antiskid differential of automobile and wheeled tractor Download PDFInfo
- Publication number
- CN1033406A CN1033406A CN 88108123 CN88108123A CN1033406A CN 1033406 A CN1033406 A CN 1033406A CN 88108123 CN88108123 CN 88108123 CN 88108123 A CN88108123 A CN 88108123A CN 1033406 A CN1033406 A CN 1033406A
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- China
- Prior art keywords
- differential
- braking sleeve
- break
- gear
- semiaxis
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A kind of automatic antiskid differential is dimerous by common symmetric type bevel differential and locking break, can carry out differential and locking automatically according to the adhesion size on driving wheel and ground, to increase wheel drive tractive force, improves the vehicle mobility energy.Both can be used as inter-wheel differential, also can be used as interaxial differential, reliable operation, long service life, processes and heat treatment requirements are fairly simple.Be specially adapted to offroad vehicle and wheeled tractor.
Description
The present invention relates to a constituent element of automobile machinery power train, specifically, relate to a kind of automatic antiskid differential, belong to the layout or the mounting technique field of vehicle differential driver.
Automobile under steam, the relative movement of wheel road pavement has two states-rolling and slides, and wherein slides to be divided into again to trackslip and two kinds of slippages.When automobile turning travels or when uneven road surface is kept straight on, because of the curve distance difference that the both sides vehicle moves past at one time, if two side drive wheel only drive with a stiff shaft, then the two angular velocity must equate, the rolling limit slippage of single wheel limit must be arranged, and trackslips in rolling limit, opposite side wheel limit.Wheel will make motor turning difficulty, power consumption increase to the slip on ground, and driving up is some part and Tyte Wear in addition, so should avoid producing it as far as possible.At present, common driven gear by main reducing gear solves this problem by both sides semiaxis and the driving wheel that a differential gear system-differential mechanism drives automobile respectively.Now, the differential mechanism of many types is (as the high resistant slide block type, single face is castellated, common bevel planet gear formula and straight-tooth are wheeled, planet wheel shaft bolt-type and unsteady friction plate locking or the like) still there is being the some shortcomings part on structure and the performance: on good road surface when straight line or turning driving, skidproof effect is gratifying, but at bad road traveling, work as a left side, right or preceding, when the condition of adhering between rear drive sprocket and the road surface differs big, when touching mire or ice and snow road if any a driving wheel, even another wheel is that automobile often still can not advance on good road surface.This is because most of differential mechanisms have the characteristics of mean allocation moment of torsion, make moment of torsion that this wheel is assigned to can only with pass to the driving wheel of trackslipping on very little moment of torsion equate and the too little cause of tractive force.In order to improve the rideability of automobile, should adopt when a driving wheel trackslips, differential mechanism has most of moment of torsion of locking even all torsion torque to go to pass to the function of the driving wheel that does not trackslip, and makes automobile continue to travel so that utilize the adhesion of this driving wheel to produce enough tractive force.The high friction self-locking formula differential mechanism of introducing in " automobile construction " volume two (the 129th page of personnel's traffic publishing house in October, 87 second edition) is exactly a kind of limited slip differential, but its indivedual part processed complexs in addition, craft precision and heat treatment requirements are very high.Owing to be to lean on the gap of bevel gear to guarantee locking, when the wearing piece wearing and tearing, gear clearance will cause differential effect to descend when strengthening, lose differential action when serious, even gear is cracked a joke.
The purpose of this invention is to provide that a kind of steam supply car and wheeled tractor use, can be according to the adhesion size of the driving wheel automatic antiskid differential of locking and differential automatically.
The present invention combines the common symmetric type bevel differential of being made up of garden awl planetary pinion, planet pin (cross axle), garden awl differential gear and differential carrier etc. with by locking break two-part that brake strip (dish), Returnning spring and braking sleeve are formed to realize goal of the invention.It is that 20 °～35 ° helical spline matches that lift angle all is processed in the axis hole of garden among the present invention awl differential gear and semiaxis end.Differential mechanism is positioned in the braking sleeve, and differential mechanism integral body can be made an amount of of left and right directions (outwards) and move in braking sleeve, promotes the break action and produces locking moment.Promptly the traction when left and right sides vehicle differs greatly, wherein single wheel produces when trackslipping, do not wait the effect of the axial thrust load that produces with the screw thread spline because of the rotating speed of left and right half gear, force differential gear slow to rotating speed, the single wheel direction that traction is big moves, and compresses the balance Returnning spring and compresses brake strip or friction disk by differential carrier, produces locking moment, the moment of torsion of the semiaxis transmission of slow-speed is obviously increased, increase the tractive force of automobile.When the adhesion of two-wheeled is more or less the same, be contained in balance Returnning spring between brake strip and the braking sleeve and differential carrier is recovered and keep the neutral position, remove locking and only play normal differential action.
The present invention can distribute driving torque according to the adhesion size of driving wheel, has obviously improved the tractive force of automobile and wheeled tractor, improves the travel mobility and the cross-country ability of vehicle, and reliable operation, long service life.Both can be used as inter-wheel differential, can be used as interaxial differential again, also can be used for multiaxis whole wheel drive car.The present invention is because of having the effect of autobalance brake weight, can simplify the braking mechanism of automobile, only need adopt a centre brake to get final product to little tonnage vehicle, alleviating light weight, improve fuel utilization ratio, thereby the Economy that improves vehicle is all of great advantage.Moreover processes and heat treatment requirements are fairly simple, realize easily under existing means of production condition and promote.
The present invention has two different embodiments, wherein:
Fig. 1 is the assembly structure figure of the present invention that is used for light-duty or compact car.
Fig. 2 is the structure erection drawing of the present invention that is used for medium-sized or full-sized car.
Further introduce the present invention below in conjunction with accompanying drawing.
Fig. 1 shows that the present invention is that periphery at former differential carrier 5 has increased a break cover 1, and the driven wheel of differential of main reducing gear then is riveted on break and overlaps on the post hole, garden 2 of 1 left side flange, rotates to drive braking sleeve.Differential carrier 5 still is made up of the two-part with bolton, 4 axle journals adorning the cross planet pin 4 of fashionable lengthening are embedded on the differential carrier two halves end face in the formed hole of corresponding grooves, each necked part of lengthening is milled with two side planes, is inlaid in 3 li of four sliding-grooves on the braking sleeve respectively.The split surface of differential carrier is by the center line of each axle journal of planet pin.Empty boasting a straight-tooth garden awl planetary pinion 6 on each axle journal, and they all mesh with two straight-tooth garden awl differential gears 7.And lift angle is arranged in the axis hole of differential gear 7 is 30 °～35 ° internal helix spline, semiaxis 8 ends that are attached thereto also are 30 °～35 ° spiral male splined shaft for lift angle, the length of spline should be greater than the axial displacement of differential gear on semiaxis, and the spline rotation direction on two semiaxis should be consistent.Between the outside of differential carrier 5 and braking sleeve, brake strip 9 is housed successively, cone disk type break 10 and balance Returnning spring 11.Power is transferred to driving wheel through braking sleeve 1, cross axle 4, planetary pinion 6, differential gear 7, semiaxis 8 successively from the main reducing gear driven gear.When the both sides vehicle rotated with same rotational speed, planetary pinion was around semiaxis rotational-revolution.If both sides wheel drive resistance difference, then planetary pinion also around self rotational-rotation, makes two-semiaxle gear driven both sides wheel rotate with different rotating speeds when making above-mentioned revolution motion.Owing to lean on the helical spline transmission of drive force between driving pinion differential side gear and the semiaxis, when two driving wheels exist the traction of speed discrepancy and two-wheeled to differ greatly, axial thrust load on the splined shaft just forces differential gear 7 and differential carrier 5 to the slow single wheel direction displacement of rotating speed, pressing friction sheet 9 and Returnning spring 11 thus, the friction torque of 9 generations of friction plate is opposite with the direction of fast commentaries on classics semiaxis, identical with the rotation direction of slow-speed semiaxis, the moment of torsion of slow-speed semiaxis transmission is obviously increased.When being displaced to limit position, when the garden conical surface of cone disk type break was directly fitted braking sleeve, power just all was delivered to this side drive wheel 3 from the main reducing gear driven wheel of differential through braking sleeve 1 and cone disk type break 10.In case when the traction of two-wheeled was more or less the same, the axial thrust load on the semiaxis reduced automatically, Returnning spring 11 will stop the break effect, and differential carrier is bounce back into the neutral position, only plays differential action and removes locking.
The basic structure of Fig. 2 is identical with Fig. 1, and just because of being used for medium-sized or large vehicle, the part changes to some extent: balance Returnning spring 11 is packed between the clamping bolt outside and braking sleeve of differential carrier 5, cancels cone disk type restorer 10 and increases some pairs of friction plates 9.The necked part of differential gear is processed to external splines and is connected from movable friction plate 9a, and active friction plate 9b links to each other with braking sleeve 1 with spline.Moreover the spline rotary orientation of two differential gears here and semiaxis is opposite, and its lead angle is 20 °～30 °.Other working principles are all identical with Fig. 1 with power transmission process, repeat no more here.
The present invention is equally applicable to the power train of various wheeled tractors.
Claims (5)
1, a kind of automatic antiskid differential that is used for automobile or wheeled tractor, include the symmetric type bevel differential of forming by garden awl planetary pinion, planet pin (cross axle), garden awl differential gear and differential carrier etc. and locking break two-part of forming by brake strip (dish), Returnning spring, braking sleeve, it is characterized in that:
(1) differential carrier is positioned in the braking sleeve, and differential mechanism integral body can laterally move about doing in the braking sleeve, and promote the break action and produce locking moment,
(2) lift angle being arranged in the axis hole of garden awl differential gear is 20 °～35 ° internal helix spline, and the semiaxis end is that lift angle is 20 °～35 ° a spiral male splined shaft, and the length of spline should be greater than the axial displacement of differential gear on semiaxis.
(3) planetary necked part extends, and is milled with two side planes at the afterbody of its each axle journal, be inlaid in respectively in four chutes on the braking sleeve,
(4) break of being made up of brake strip (dish) and Returnning spring is housed between differential carrier and braking sleeve.
2, automatic antiskid differential according to claim 1 is characterized in that the internal spline and the semiaxis upper spline axial screw lift angle of differential gear axis hole, is used for light-duty or is 30 °～35 ° during compact car, is used for medium-sized or is 20 °～30 ° during full-sized car.
3, automatic antiskid differential according to claim 1 is characterized in that being used for light-duty or compact car, and during tractor, friction plate and is equipped with Returnning spring between cone disk type break and braking sleeve between differential carrier and cone disk type break.
4, automatic antiskid differential according to claim 1 is characterized in that being used for medium-sized or when full-sized car, tractor, Returnning spring is between differential carrier and braking sleeve.
5, automatic antiskid differential according to claim 1 is characterized in that the driven wheel of differential of main reducing gear is riveted on the outside of braking sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88108123 CN1009944B (en) | 1988-12-03 | 1988-12-03 | Automatic antiskid differential for motor vehicles and wheel type tractors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88108123 CN1009944B (en) | 1988-12-03 | 1988-12-03 | Automatic antiskid differential for motor vehicles and wheel type tractors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1033406A true CN1033406A (en) | 1989-06-14 |
| CN1009944B CN1009944B (en) | 1990-10-10 |
Family
ID=4834945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88108123 Expired CN1009944B (en) | 1988-12-03 | 1988-12-03 | Automatic antiskid differential for motor vehicles and wheel type tractors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1009944B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372623C (en) * | 2002-09-27 | 2008-03-05 | 特斯玛国际公司 | Cold formed differential housing with integrated ring gear |
| CN102889358A (en) * | 2012-09-29 | 2013-01-23 | 盛阳 | Novel differential |
| CN104670009A (en) * | 2013-12-02 | 2015-06-03 | 斗山工程机械（山东）有限公司 | Drive axle assembly and loader |
| CN105485297A (en) * | 2015-12-10 | 2016-04-13 | 中国矿业大学 | Differential mechanism capable of being locked automatically |
| CN106241603A (en) * | 2016-09-29 | 2016-12-21 | 广西曼彻彼斯自动化设备有限公司 | Rail logistics trolley driver |
| CN107059969A (en) * | 2017-03-30 | 2017-08-18 | 吉林大学 | A kind of wheel dozer tractive force combined control system and control method |
| CN108138930A (en) * | 2015-10-23 | 2018-06-08 | 本田技研工业株式会社 | The power transmission of rotary body and the use rotary body and the manufacturing method of rotary body |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332142C (en) * | 2004-09-28 | 2007-08-15 | 曹相照 | Screw self locking differential mechanism |
-
1988
- 1988-12-03 CN CN 88108123 patent/CN1009944B/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372623C (en) * | 2002-09-27 | 2008-03-05 | 特斯玛国际公司 | Cold formed differential housing with integrated ring gear |
| CN102889358A (en) * | 2012-09-29 | 2013-01-23 | 盛阳 | Novel differential |
| CN102889358B (en) * | 2012-09-29 | 2015-04-22 | 盛阳 | Novel differential |
| CN104670009A (en) * | 2013-12-02 | 2015-06-03 | 斗山工程机械（山东）有限公司 | Drive axle assembly and loader |
| CN108138930A (en) * | 2015-10-23 | 2018-06-08 | 本田技研工业株式会社 | The power transmission of rotary body and the use rotary body and the manufacturing method of rotary body |
| CN105485297A (en) * | 2015-12-10 | 2016-04-13 | 中国矿业大学 | Differential mechanism capable of being locked automatically |
| CN105485297B (en) * | 2015-12-10 | 2017-10-03 | 中国矿业大学 | It is a kind of can automatic locking differential mechanism |
| CN106241603A (en) * | 2016-09-29 | 2016-12-21 | 广西曼彻彼斯自动化设备有限公司 | Rail logistics trolley driver |
| CN107059969A (en) * | 2017-03-30 | 2017-08-18 | 吉林大学 | A kind of wheel dozer tractive force combined control system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1009944B (en) | 1990-10-10 |
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| CF01 | Termination of patent right due to non-payment of annual fee |