CN1583447A

CN1583447A - Interlocked differential mechanism

Info

Publication number: CN1583447A
Application number: CN 03125321
Authority: CN
Inventors: 周殿玺
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-22
Filing date: 2003-08-22
Publication date: 2005-02-23

Abstract

A interlock differential mechanism is composed of a central differential mechanism and two differential mechanisms at both ends, all of which are serially connected and installed to a supporting cross frame. The internal differential mechanism positioned in said cross frame and consists of two planetary gears and 4 spiral cylindrical gears.

Description

The interlocking diff

Technical field: the present invention relates to a kind of inter-locking differential driver.

Background technology: it is to need the problem that overcomes in the vehicle ' process that automobile skids always, solve vehicle slip, must solve differential and locked problem between the wheel, the problem of the differential locking-device existence of generally adopting now is can be locked, but in case therefore the differential between just can't realizing taking turns after locked still can't overcome the problem of skidding in the heavy road section.The inventor proposed to adopt a plurality of difies to merge the normal interlocking constant quick-mounting that uses in the past and put, and between can realizing taking turns in locked, interaxle differential, but had incomplete place between interlocking and differential.What the Torsen diff adopted is two turbine and worm structures, with regard to the processing conditions of China, is difficult to reach accuracy requirement, is difficult to realize production domesticization, and the intensity that also to have a problem simultaneously be the turbine and worm transmission device is low, and rapid wear is easily useless, the cost height.

Summary of the invention: the present invention realizes the more perfect problem of differential in order to solve in locked, be conceived to reduce difficulty of processing simultaneously, the purpose of being convenient to domesticize, a kind of interlocking diff is proposed, mainly being sleeved on the series connected diff of central composite differential and two ends that constitutes together by interior diff and outer diff forms, described inside and outside diff is contained on the cross bar by shared pin sleeve, it is characterized in that: described cross bar in described diff and outside between the diff, diff is positioned at described cross bar in described, is made of two planetary wheels and four helix cylindrical gears perpendicular and that be symmetrically distributed in the center shaft both sides; Described helix cylindrical gear lead angle is 45 °, is installed in the described cross bar inside groove; Homonymy helix cylindrical gear rotation direction is identical, and meshes with the helix cylindrical gear that is positioned at described axle side gear inboard respectively; The described helix cylindrical gear two ends cylindrical wheel that is connected respectively; The described cylindrical wheel of homonymy is meshing with each other.

This interlocking diff has reduced difficulty of processing when the solution interlocking realizes differential simultaneously, tally with the national condition, and be easy to production domesticization and implement, and the interlocking differential life-span is longer, interlocking better effects if, good stability.

Description of drawings: Fig. 1 is a structural representation front view of the present invention;

Fig. 2 structural representation birds-eye view of the present invention;

Fig. 3 is the A-A cutaway view of Fig. 1;

Fig. 4 is that the B-B of Fig. 3 is to partial schematic diagram.

The specific embodiment: as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, this interlocking diff comprise by interior diff 5 and and outer diff 3 be sleeved on the series connected diff 1,6 of central composite differential and two ends that constitutes together, inside and outside diff is sleeved on the cross bar 14 by shared bearing pin 4, cross bar 14 interior diff 5 and outside between the diff 3; Interior diff 5 is positioned at cross bar 14, comprises two planetary wheels 13 and four

cylindrical wheels

20,21,24,25, and planetary wheel is vertical mutually with the axis of cylindrical wheel.Wherein planetary wheel 13 is near cross bar 14 inboards, with 2,8 engagements of left and right sides axle side gear, left and right sides

axle side gear

2,8 is set on the left and

right sides semiaxis

12,7, left and right sides semiaxis connects by connecting pin 9, suit left and right sides cylindrical wheel 11,10 on the connecting pin 9, left and right sides cylindrical wheel 11,10 is 45 ° a helical wheel for lead angle, and rotation direction is identical; Left and right sides cylindrical wheel 11,10 respectively with left and right sides

axle side gear

2,8 spline fitted, this structure makes left and

right sides semiaxis

12,7, left and right sides

axle side gear

2,8 and left and right sides cylindrical wheel 11,10 connect as one.

Cylindrical wheel

20,21,24,25 is 45 ° helix cylindrical gear for lead angle, be installed in the inside groove of cross bar 14 by castellated shaft 19,22,23,15 respectively, as Fig. 2, shown in Figure 3, be symmetrically distributed in the both sides of center shaft, the two ends of each helix cylindrical gear

cylindrical wheel

17,18 that is connected respectively.Cylindrical wheel up and down between two groups of cylindrical wheels of homonymy is engagement in twos respectively; The rotation direction of homonymy helix cylindrical gear is identical, and meshes with left and right sides cylindrical wheel 11,10 respectively.

Its principle of work is: during shaft space difference speed, the planetary wheel of diff 6 rotates in outer diff 3 of central authorities and the central authorities, and diff 1,6 shells are rotated, and produces velocity contrast, finishes differential.

During differential, the shell of diff 1,6 and central composite differential cross frame 14 same speed operation are given birth to velocity contrast by differential gear rotation movable property in the differential planetary gear in the diff 1,6, axle side gear, the central authorities, finish diagonal angle differential between wheel between wheel.

When taking turns differential entirely, above-mentioned between centers, inter-wheel differential gear all rotate, and finish differential.

Automobile is normally exercised work: drive main deceleration ring gear 27 drive difies by main deceleration driving gear 26 and finish shell and cross frame 14 rotations, drive wheels is normally walked.

Interlocking is anti-skidding: if when two wheels in diagonal angle of automobile or two wheels of homonymy skid simultaneously, diff 5 drives the diagonal angle wheels that it connected in the central authorities, makes two non-slip wheel differentials, and the driving automobile is normally exercised.When the normal differential of automobile, finish between wheel, diagonal angle differential and interlocking.Unsettled as front right wheel, the right wheel slipping of preceding hollow half axle gear drive, the preceding left wheel that semiaxis drives does not change, differential 5 axle side gears do not change in the coupled central authorities, diff 5 another axle side gears and the back axle side gear rotation that links to each other in the central authorities, drive the rotation of half-rear axle wheel driving gear, the solid semiaxis in back connects wheel and preceding right wheel homonymy, car has at least a wheel to support in the same side can be not unsettled, automobile is normally exercised, in like manner, even a car has three tyre skiddings simultaneously, automobile still can normally be exercised.In specific operating mode work, assist the principle of work of anti-skid device: when axle side gear 11 is not worked, during axle side gear 10 high speed rotating, gear 20,21 do not rotate, at this moment gear 16 does not rotate yet, by gear 16 and gear 17 engagements, so gear 17 does not rotate yet, gear 17 and gear 24,25 are fixed with one, with axle side gear 10 engagements, controlled the axle side gear 10 of high speed rotating, make it to become one, be same rotary speed working, at this moment semiaxis 12, the 7th, same rotating speed, the hollow half axle 28 and semiaxis 12 at nature two ends, the 7th, same rotating speed, thus finished the purpose of full wheel interlocking.

Claims

1, a kind of interlocking diff, mainly being sleeved on the series connected diff of central composite differential and two ends that constitutes together by interior diff and outer diff forms, described inside and outside diff is contained on the cross bar by shared pin sleeve, it is characterized in that: described cross bar in described diff and outside between the diff, diff is positioned at described cross bar in described, is made of two planetary wheels and four helix cylindrical gears perpendicular and that be symmetrically distributed in the center shaft both sides; Described helix cylindrical gear lead angle is 45 °, is installed in the described cross bar inside groove; Homonymy helix cylindrical gear rotation direction is identical, and meshes with the helix cylindrical gear that is positioned at described axle side gear inboard respectively; The described helix cylindrical gear two ends cylindrical wheel that is connected respectively; The described cylindrical wheel of homonymy is meshing with each other.