CN102310768B

CN102310768B - Four wheel drive mechanism for rear wheel drive, four wheel drive and locking

Info

Publication number: CN102310768B
Application number: CN201010226768.2A
Authority: CN
Inventors: 贾新成
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-05
Filing date: 2010-07-05
Publication date: 2014-07-02
Anticipated expiration: 2030-07-05
Also published as: CN102310768A

Abstract

The invention provides a four wheel drive mechanism capable of maintaining advantages and overcoming partial disadvantages on the basis of a full-time four wheel drive principle aiming at the advantages and disadvantages of a part-time four-wheel drive vehicle, a full-time four-wheel drive vehicle and a real-time four-wheel drive vehicle. The four wheel drive mechanism can achieve rear wheel drive, full-time four wheel drive and the locking of a center differential through electric and manual gear changing, and has a compact structure and high efficiency.

Description

The mechanism of the locked 4 wheel driven of a kind of rear-guard 4 wheel driven

Technical field: this is a kind of automobile 4 wheel driven mechanism, this 4 wheel driven mechanism is applicable to the four wheel drive of cross-country car, car and SUV car.

Background technology: I am at previous an invention " a kind of automobile 4 wheel driven system of fuel-economizing, application number; 2010101493811 " inner introduced a kind of change-speed box horizontal can forerunner, the mechanism of AWD, the locked 4 wheel driven of diff, now I or according to former without shell differential design principle, designed a kind of change-speed box vertical put can rear-guard, AWD, the locked 4 wheel driven mechanism of diff.Summary of the invention: for the merits and faults of half, full-time, in good time three kinds of 4-wheel driven cars, I taking AWD principle as basic design a kind of 4 wheel driven mechanism that can keep its advantage and can overcome again part shortcoming, the 4 wheel driven that rear-guard, AWD and center differential are locked can be accomplished by electronic and manual engage a gear, compact conformation excellent in efficiency by this 4 wheel driven mechanism.

Brief description of the drawings: Fig. 1 is instruction diagram, and Fig. 2 is the cutaway view of Fig. 1 at A-A place, and Fig. 3 is the explanation to 4 wheel driven gear, and Fig. 4 is the explanation to the locked gear of 4 wheel driven.The mechanism of the locked 4 wheel driven of a kind of rear-guard 4 wheel driven comprises; Transmission output shaft 1, front driving gear 2, spline housing 3, engage a gear cover 4, half front axle gear 5, cross bar 6, check screw 7, pivot pin 8, planetary wheel 9, rear axle side gear 10, adjusts bung flange 11, front ring gear 12.

In the straight-through part-time case of transmission output shaft 1.On transmission output shaft 1, have front driving gear 2, front driving gear 2 is by needle bearing and transmission output shaft 1 floating connection, and there is female splines at its rear portion.Spline housing 3 has interior male splines, the spline joint of its female splines and transmission output shaft 1, and external diameter has two splines, and the centre of two splines is grooves.The effect of spline housing 3 is connected axle 1 exactly with half front axle gear 5, make diff locked.The internal diameter of half front axle gear 5 and transmission output shaft 1 floating connection, external diameter has spline.The internal diameter of engage a gear cover 4 has two splines, and external diameter has the groove of a spline and an engage a gear.The rear portion of transmission output shaft 1 and the internal diameter spline joint of cross bar 6, cross bar 6, check screw 7, pivot pin 8, planetary wheel 9 is combined becomes planetary gear carrier, power is transferred to half front axle gear 5 and rear axle side gear 10 by planetary gear carrier, and by planetary gear carrier differential.Planetary gear carrier and front and back axle side gear composition diff.Adjust the turn of bung flange 11 and can adjust diff gap.Front driving gear 2 and front ring gear 12 can pass to front propeller shaft power.

Transmission output shaft 1 by spline joint power direct-drive to planetary gear carrier, four planetary wheels 9 in pinion carrier (also can three or five planetary wheels) on half front axle gear 5 and rear axle side gear 10, and can make the work of two axle side gear energy differentials by planetary wheel 9 power transmission.Rear axle side gear 10 can pass to rear propeller shaft power.The spline of half front axle gear 5 is connected with the rear female splines of engage a gear cover 4, and the front female splines of engage a gear cover 4 and the rear male splines of spline housing 3 are connected.At this moment half front axle gear 5 overlaps 4 and spline housing 3 and all spline joints of transmission output shaft 1 by engage a gear, at this moment diff is by locked, and power leads directly to rear propeller shaft, and front driving gear 2 floats on transmission output shaft 1, power can not pass to front propeller shaft, is at this moment that trailing wheel two drives.4 reaches of engage a gear cover, the rear female splines of engage a gear cover 4 also with half front axle gear 5 spline joints, the rear male splines that the front female splines of engage a gear cover 4 departs from spline housing 3 enters in the groove of spline housing 3, and the male splines of engage a gear cover 4 is connected with the female splines of front driving gear 2, at this moment half front axle gear 5 and engage a gear cover 4 and front driving gear 2 are connected, and are at this moment AWDs.Engage a gear cover 4 moves forward to the end again, at this moment the spline of half front axle gear 5 engage a gear covers 4 and front driving wheel 2 is connected, and engage a gear cover 4 is connected with spline housing 3, diff is by locked, and because the spline of engage a gear cover 4 also connects front driving gear 2, so be at this moment diff locked four wheel drive.

Can manually also can be electronic to the manipulation of engage a gear cover 4, Fig. 1; Engage a gear cover 4 is in rear positions; Half front axle gear 5 engage a gears cover 4 and spline housing 3 and transmission output shaft 1 spline joints, diff is by locked, and power leads directly to rear propeller shaft, and front driving gear 2 is also in quick condition, front output shaft does not have power.Fig. 2 engage a gear cover 4 is at medium position; Half front axle gear 5 engage a gear cover 4 and front driving gear 2 spline joints, this is AWD.Fig. 3 engage a gear cover 4 is in forward position; Half front axle gear 5 engage a gears overlap 4 front driving gear 2 spline housings 3 and all spline joints of transmission output shaft 1, are at this moment the locked 4 wheel drivens of diff.

Detailed description of the invention: first need a few cover samples of development and design to test, pinpoint the problems and deal with problems, if the fine reliable operation of performance just can be considered batch manufacturing, the market outlook of this mechanism should be fine.But development cost may be very high, so need the support of investment funds, auto maker, auto parts and components manufacturing company, preferably can obtain government and support.

Claims

1. a mechanism for the locked 4 wheel driven of rear-guard 4 wheel driven, comprises; Transmission output shaft (1), front driving gear (2), spline housing (3), engage a gear cover (4), half front axle gear (5), cross bar (6), check screw (7), pivot pin (8), planetary wheel (9), rear axle side gear (10), adjustment bung flange (11) and front ring gear (12);

It is characterized in that: in the straight-through part-time case of transmission output shaft (1); On transmission output shaft (1), have front driving gear (2), front driving gear (2) is by needle bearing and transmission output shaft (1) floating connection, and there is female splines at its rear portion; Spline housing (3) has interior male splines, the spline joint of its female splines and transmission output shaft (1), and external diameter has two splines, and the centre of two splines is grooves; The effect of spline housing (3) is that axle (1) is connected with half front axle gear (5), makes diff locked; The internal diameter of half front axle gear (5) and transmission output shaft (1) floating connection, external diameter has spline; The internal diameter of engage a gear cover (4) has two splines, and external diameter has the groove of a spline and an engage a gear; The rear portion of transmission output shaft (1) and the internal diameter spline joint of cross bar (6), cross bar (6), check screw (7), pivot pin (8) and planetary wheel (9) are combined and are become planetary gear carrier, power is transferred to half front axle gear (5) and rear axle side gear (10) by planetary gear carrier, and by planetary gear carrier differential; Planetary gear carrier and front and back axle side gear composition diff; Adjust the turn of bung flange (11) and can adjust diff gap; Front driving gear (2) and front ring gear (12) can pass to front propeller shaft power.