CN2567078Y

CN2567078Y - Slide controlling differential mechanism without lock

Info

Publication number: CN2567078Y
Application number: CN 02278976
Authority: CN
Inventors: 周殿玺
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-29
Filing date: 2002-08-29
Publication date: 2003-08-20
Anticipated expiration: 2012-08-29

Abstract

The utility model belongs to the field of the differential transmission of a wheeled vehicle, which relates to a slide controlling differential mechanism without lock. The utility model is mainly composed of an inner planet, an outer planet differential mechanisms and a cross shaft. The utility model is characterized in that the inner planet differential mechanism comprises a pair of gears which are mutually engaged, a pair of inner planet support frames and a pair of universal joints, wherein, the structure is in bilateral symmetry; the gear centers are respectively provided with one spline shaft positioned in the middle of the inner planet support frames; the inner planet support frames are arranged in a center hole of the cross shaft. The universal joints are arranged on both ends of the inner differential mechanism; one end thereof is coupled with the spline shafts and the other end is coupled with a driving half shaft. The differential mechanism is completely mechanical and is suitable for two-wheel and multiple-wheel vehicles; wheels can be automatically controlled and can avoid slip when differential speed, causing that the all-wheel driving, the all-wheel differential speed, and the all-wheel interlocking of the vehicle can be simultaneously carried out; the continuity differential rate is 100% when the interlocking rate is 100%.

Description

No lock control slip differential

Technical field: the utility model belongs to wheeled car differentia transmission field, relates to no lock control slip differential.

Background technology: up to the present, at the anti-skidding idle running problem of wheel of vehicle, the external problem that adopts silicon oil clutch and Eltec to solve wheel slip really, but they are a kind of full automatic locked and working processs that break away from, belong to a kind of locked indifferential, differential does not have locked discontinuous working process, between still exist and be interrupted discontinuous circulating of power.The patent No. that the applicant applied in recent years is that ZL98100725.2's " composite high-passage differential transmission mechanism ", the patent No. is that ZL99208786.4 " the normal full-time differential driver of interlocking " and application number are 01114361.4 " frequently interlocked universal differential driver "; the problem of control tyre skidding when can solve differential technically; but they can only be used for four-wheel or multiple-wheel drive car, can not be used for two wheel drive vehicle.The patent No. is 99208787.2 " full automaticity anti-skid final drive ", though can on two-wheel car, use, but its existing problem: the one, have the track of a groove be difficult for to guarantee on the axle side gear, the 2nd, in the face of the monolateral difference of adhesive ability of wheel when excessive wheel still have skidding.In sum, present differential technology can not solve the locked and differential continuity problem of two-wheel drive, multiple-wheel drive vehicle, has therefore caused the low and strong carrying capacity of drive efficiency of two-wheeled or multiple-wheel drive vehicle poor.

Summary of the invention: the utility model is in order to solve the locked and successional problem of differential in the present differential technology, a kind of no lock control slip differential is proposed, mainly constitute by inner planet and outer planet diff, center cross, it is characterized in that: described inner planet diff comprises a pair of pitch wheel, inner planet support, universal-joint, and the structure left-right symmetric; Described gear center is equipped with a castellated shaft separately and is positioned at described inner planet mid-stent; Described inner planet support is contained in the hole, described spider center; The two ends of described universal-joint diff in described, an end and described castellated shaft link, and the other end and jack shaft link.This no lock control slip differential can also be mainly to be made of diff, center cross, and it is characterized in that: described diff comprises a pair of pitch wheel, planet stent, universal-joint, and the structure left-right symmetric; Described gear center is equipped with a castellated shaft separately and is positioned at described planet stent middle part; Described planet stent is contained in the hole, described spider center, and is fixed together; Described universal-joint is at the two ends of described diff, and an end and described castellated shaft link, and the other end and jack shaft link.This diff is a fully mechanical, connect together by jack shaft and axle side gear and to realize that the diff of dress lock can not finished differential and locked this function to mutual opposition constantly simultaneously at each, can on two-wheeled, multiwheel vehicle, be suitable for, and the automatic guidance wheel does not trackslip in differential, make the vehicle all-wheel drive on four-wheel or multiwheel vehicle, take turns interlocking again entirely when taking turns differential entirely, the poor continuity speed in the interlocking rate is 100% synchronization is 100%; The problem of the drive efficiency low and strong carrying capacity difference that has solved the poor continuity of two-wheel drive, multiple-wheel drive vehicle and caused thus.

Description of drawings: Fig. 1, the cutaway view of this nothing lock control slip differential;

Fig. 2, the cutaway view of the interior diff of this nothing lock control slip differential;

Fig. 3, the A of the interior diff of this nothing lock control slip differential is to cutaway view.

The specific embodiment: as shown in Figure 1 and Figure 2, this nothing lock control slip differential is to be made of inner planet diff 14, outer planet diff 15 and center cross 4; Inner planet diff 14 comprises: a pair of

pitch wheel

7,8, inner planet support 6, universal-

joint

2,12 etc.; And structure left-right symmetric.Wherein dress inner planet support 6 in center cross 4 centre holes can be to be fixed together between them, also inner planet support 6 can be placed on freely in center cross 4 centre holes; A pair of gear 7 and the gear 8 of being meshing with each other is housed at the middle part of inner planet support 6, and gear 7 is equipped with a castellated shaft 9 and castellated shaft 11 separately with the center of gear 8; The two ends of diff 14 in wherein universal-joint 2 and universal-joint 12 lay respectively at, an end links with castellated shaft 9 and castellated shaft 11 respectively, and the other end links with jack shaft 1 and jack shaft 13 respectively; Interior diff 14 tiltedly falls angles and is contained in center cross 4 centre holes, make the rotation intersection point of two ends universal-joint 2 and universal-joint 12 be positioned at diff spool line of centers on.Exterior epicyclic gear 5 and axle side gear 3 and axle side gear 10 engagements are finished the torque distribution task; Castellated shaft 9 links with universal-joint 2 respectively with jack shaft 1, and axle side gear 3 and jack shaft 1 interlock mutually become one; Castellated shaft 11 links with universal-joint 12 respectively with jack shaft 13, and jack shaft 13 becomes one with axle side gear 10 interlocks.

Principle of work and effect: the planetary wheel 5 of outer diff 15, two-

semiaxle gear

3,10 reasonable differentials and etc. the square distribute torque, when interior diff 14 is not done differential motion when

axle side gear

3,10, the automobile straight-line travelling, two-

semiaxle gear

3,10 is stung respectively on jack shaft 1,13 at this moment, and be connected with universal-

joint

2,12 respectively, interior

differential gear

7,8 is not worked, and interior diff 14 is in company with rotating together; When the automobile differential, axle side gear 3 is just changeing speed-raising, and axle side gear 13 counter-rotatings are slowed down, the jack shaft 1 of interlock this moment drives universal-joint 2 and gear 7 is just changeing speed-raising, jack shaft 13 drives universal-joint 12 and gear 8 counter-rotatings are slowed down, and identical with outer diff 15 increase and decrease speed, realizes differential.

When the vehicle wheel slip, it is zero that axle side gear rotating speed is on one side then arranged, and another side axle side gear rotating speed must be 2 times of revolution.Now if the rotating speed of axle side gear 3 is zero, then axle side gear 10 just changes with 2 times revolution speed, also just change with axle side gear 10 ingear jack shafts 13 with 2 times of rotating speeds, and drive universal-joint 12 reaches interior differential gear 8 with the 2 times of speed rotations of revolving round the sun, driven gear 8 engaging gears 7 are to revolve round the sun 2 times speed counter-rotating, gear 8 drives universal-joint 2 and jack shaft 1 again to revolve round the sun 2 times speed counter-rotating, but interlock is as a whole again with axle side gear 3 for jack shaft 1, and the speed of axle side gear 3 is zero, so formed mutual restriction, making rotating speed is that the rotating speed of zero axle side gear 3 can not be zero, make the axle side gear of 2 times of rotating speeds recover normal speed, reach the effect of control tyre skidding.Its concrete analysis is as follows:

Fundamental property by differential has: 2n=n ₁+ n ₂, wherein: n is a revolution speed, left side rotating speed is n ₁, the right rotating speed is n ₂

If the vehicle revolver skids, n is arranged then ₁=0, draw 2n=2n ₂

If n=1000 rev/min, the left and right sides rotating speed that can draw outer diff according to following formula is respectively:

n _{Outer 1}=0, n _{Outer 2}=1000 * 2=2000 rev/min

Principle of work during by interior diff and outer differential logotype is the n of interior diff as can be known _{Interior 2}The axle side gear that is fast idle is passed to interior differential gear, so

n _{Interior 2}=+2000 rev/mins,

Nature: n _{Interior 1}=-2000 rev/mins

Because of inside and outside diff is associated in together, so the rotation speed n of inside and outside diff _{Interior 1}With n _{Outer 1}Be consistent, the rotation speed n on the diff left side in establishing _{Interior 1}In the time of=-2000 rev/mins, then drive the outer diff left side also with n _{Outer 1}=-2000 rev/mins rotational speed,

By 2n=n ₁+ n ₂Draw: 2n=2 * 1000 rev/min=2000 rev/mins

And n ₁+ n ₂=|-2000|+2000=4000 rev/min

2n=2000 rev/min＜n ₁+ n ₂=4000 rev/mins, 2n=n then ₁+ n ₂Be false, so produce the restriction interlocking between the two, up to reaching n _{Outer 1}=n _{Outer 2}Till.

In addition, when interior differential support 6 is fixed as one with center cross 4, can realize continuous differential by inside and outside diff co-operation; Also can outer diff 15, only work alone and can finish continuous differential by interior diff 14.As Fig. 2, shown in Figure 3, interior diff is principle of work independently: differential support 6 is fixed as one with center cross 4, when automobile normal running, center cross 4 flip-flop movements, at this moment interior diff 14 is differential not, only with overturning two jack shafts, 1,13 driven wheels; When needing differential, on one side jack shaft quicken, gear 7 and gear 8 by a pair of external toothing form differentials, because the hand of rotation of gear 7 and gear 8 is one positive one negative, do not have n ₁Or n ₂=0 condition has reached the problem of controlling tyre skidding, improving drive efficiency.

This nothing lock control slip differential is widely used in all wheeled car and the various special-purpose industrial wheeled equipments that need use diff.

Claims

1, a kind of no lock control slip differential mainly is made of inner planet and outer planet diff, center cross, it is characterized in that: described inner planet diff comprises a pair of pitch wheel, inner planet support, universal-joint, and the structure left-right symmetric; Described gear center is equipped with a castellated shaft separately and is positioned at described inner planet mid-stent; Described inner planet support is contained in the hole, described spider center; The two ends of described universal-joint diff in described, an end and described castellated shaft link, and the other end and jack shaft link.

2, no lock control slip differential as claimed in claim 1 is characterized in that: the oblique angle of diff is contained in the hole, described spider center in described, and on the central axis of rotation intersection point diff in described of described two ends universal-joint.

3, no lock control slip differential as claimed in claim 1, it is characterized in that: described inner planet support is placed in the centre hole of center cross freely.

4, no lock control slip differential as claimed in claim 1, it is characterized in that: described inner planet support and described center cross are fixed together.

5, as claim 1,2 or 4 described no lock control slip differentials, it is characterized in that: described no lock control slip differential is made of diff, center cross, and described diff comprises a pair of pitch wheel, planet stent, universal-joint, and the structure left-right symmetric; Described gear center is equipped with a castellated shaft separately and is positioned at described planet stent middle part; Described planet stent is contained in the hole, described spider center, and is fixed together; Described universal-joint is at the two ends of described diff, and an end and described castellated shaft link, and the other end and jack shaft link.