CN203115042U

CN203115042U - Mechanical lock type differential mechanism

Info

Publication number: CN203115042U
Application number: CN 201320147621
Authority: CN
Inventors: 于胜康
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-08-07
Anticipated expiration: 2023-03-28

Abstract

The utility model discloses a mechanical lock type differential mechanism. The mechanical lock type differential mechanism comprises a shell body, a left half shaft and a right half shaft. The left half shaft and the right half shaft extend into the shell body, side covers connected with the left half shaft and the right half shaft in a sleeved mode are arranged on the shell body, a ratchet wheel assembly connected with the left half shaft and the right half shaft is arranged in the shell body, the ratchet wheel assembly comprises an outer ratchet wheel set and an inner ratchet wheel set, the outer ratchet wheel set is composed of two movable ratchet wheels which are inserted and connected with each other, teeth of the two ratchet wheels are opposite, the outer ratchet wheel set comprises a left outer ratchet wheel and a right outer ratchet wheel, the inner ratchet wheel set is composed of two movable ratchet wheels which are inserted and connected with each other, teeth of the two ratchet wheels are opposite, the inner ratchet wheel set is comprises a left inner ratchet wheel and a right inner ratchet wheel, the left outer ratchet wheel is fixedly connected with the right inner ratchet wheel, the right outer ratchet wheel is fixedly connected with the left inner ratchet wheel, the inner ratchet wheel set is integrally embedded in the outer ratchet wheel set, the direction of the teeth of the left outer ratchet wheel is opposite to the direction of the teeth of the left inner ratchet wheel, and the direction of the teeth of the right outer ratchet wheel is opposite to the direction of the teeth of the right inner ratchet wheel. The mechanical lock type differential mechanism has the advantages of being purely mechanical in structure, relatively simple in structure, and quick in locking function playing.

Description

A kind of mechanical locking differential

Technical field

The utility model relates to the differential art field, particularly a kind of mechanical locking differential.

Background technique

In pure mechanical differential gear box, common open differential mechanism single wheel skid or unsettled situation under can't continue to move at all, must rely on external force to pull just and can get rid of poverty.

The Eton differential mechanism adopts mechanical lock, when single wheel skids or is unsettled, when the speed discrepancy of two-wheeled reaches certain numerical value, mechanical lock works two semiaxis is locked together, the driving vehicle advances or retreats, power is transported to the wheel of effective adherence ground fully, but the locking of differential mechanism needs the certain reaction time.

Torsen differential mechanism (limited-slip differential) controls in certain scope the speed discrepancy between two-wheeled by the effect of turbine, worm screw, be unlikely to occur to skid or the unsettled phenomenon that makes vehicle advance or to retreat because of single wheel, but this can not flow to power the effectively wheel of adherence ground fully, and the wheel that part power is skidded has consumed.

Open differential mechanism can't provide the power that advances or retreat to vehicle when single wheel skids or be unsettled, cause vehicle to move.

Eton machinery locking differential, structure relative complex cost height, and its latch functions needs the certain reaction time.

Torsen differential mechanism cost height, power can not be transported to the wheel of effective adherence ground fully.

The model utility content

In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of pure mechanical structure, and structure is simple relatively, and the performance latch functions is the mechanical speed difference device rapidly.

The technological scheme that the utility model adopts is: a kind of mechanical locking differential, comprise housing and a left side, right axle shaft, a left side, right axle shaft puts in the housing, described housing is provided with and a left side, the side cover of right axle shaft socket, be provided with in the housing and a left side, the ratchet assembly that right axle shaft connects, described ratchet assembly comprises outer ratchet group and internal clickwork group, described outer ratchet group is made up of two ratchets that movably teeth are opposite of pegging graft mutually, be divided into the outer ratchet in a left side and right outer ratchet, described internal clickwork group is made up of two ratchets that movably teeth are opposite of pegging graft mutually, be divided into left internal clickwork and right internal clickwork, ratchet is fixedlyed connected with right internal clickwork outside the described left side, ratchet is fixedlyed connected with left internal clickwork outside the described right side, described internal clickwork group integral body is nested in the outer ratchet group, the outer ratchet in a left side is opposite with the teeth direction of left internal clickwork, and right outer ratchet is opposite with the teeth direction of right internal clickwork.

Further, on ratchet and the right outer ratchet two inclined holes are arranged respectively outside the described left side, be inserted with the bearing pin that fixes with the differential mechanism shell in the inclined hole.

Further, the inboard ratchet that is connected with dual layer opposite teeth that fixedly has with the interlock of the inside and outside ratchet phase of ratchet assembly of the side cover of described left and right half.

Further, described connection ratchet slidably is fixed on a left side by spline, on the right axle shaft.

Further, be provided with spring between connection ratchet and the side cover on the described left and right half.

Compared with prior art, the beneficial effects of the utility model are: the ratchet mechanism that adopts four groups of improveds, advancing, having respectively when retreating two groups of ratchet mechanisms to work, realize mutual switching between the inside and outside ratchet mechanism by the pressure of the slight rotation of transmission shaft and spring, and the braking action of motor still exists, pure mechanical structure, structure are simple relatively, and the performance latch functions is rapid.

Description of drawings

In order to be illustrated more clearly in the technical solution of the utility model, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is overall structure figure of the present utility model;

Fig. 2 is the matching chart of ratchet outside the left side of the present utility model, left internal clickwork and right outer ratchet;

Fig. 3 is internal clickwork structural drawing of the present utility model.

Among the figure: 1. right axle shaft, 2. left half axle, 3. side cover, 4. spring 5. connects ratchet, the 6. outer ratchet in a left side, the 7. outer ratchet in the right side, 8. right internal clickwork, 9. left internal clickwork, 10. inclined hole, 11. bearing pins.

Embodiment

The technical solution of the utility model the utility model is further specified below in conjunction with specific embodiment in order more to be expressly understood.

A kind of mechanical locking differential described in the utility model, comprise housing and a left side, right axle shaft 1,2, a left side, right axle shaft puts in the housing, described housing is provided with and a left side, the side cover 3 of right axle shaft socket, be provided with in the housing and a left side, the ratchet assembly that right axle shaft connects, described ratchet assembly comprises outer ratchet group and internal clickwork group, described outer ratchet group is made up of two ratchets that movably teeth are opposite of pegging graft mutually, be divided into the outer ratchet 6 in a left side and right outer ratchet 7, described internal clickwork group is made up of two ratchets that movably teeth are opposite of pegging graft mutually, be divided into left internal clickwork 9 and right internal clickwork 8, ratchet 6 is fixedlyed connected with right internal clickwork 8 outside the described left side, ratchet 7 is fixedlyed connected with left internal clickwork 9 outside the described right side, described internal clickwork group integral body is nested in the outer ratchet group, the outer ratchet 6 in a left side is opposite with the teeth direction of left internal clickwork 9, right outer ratchet 7 is opposite with the teeth direction of right internal clickwork 8, a described left side, the side cover 3 of right axle shaft is inboard fixedly have with ratchet assembly in, the connection ratchet 5 with dual layer opposite teeth of outer ratchet phase interlock, connect ratchet 5 and slidably be fixed on a left side by spline, on the right axle shaft, a described left side, connect between ratchet and the side cover on the right axle shaft and be provided with spring 4, on ratchet 6 and the right outer ratchet 7 two inclined holes 10 are arranged respectively outside the described left side, be inserted with the bearing pin 11 that fixes with the differential mechanism shell in the inclined hole 10, the differential mechanism shell rotate make the outer ratchet 6 in a left side and right outer ratchet 7 under the effect of pin along axial motion, the switching of ratchet group inside and outside the realization.

In this differential mechanism, have four groups of ratchet mechanisms, there are two groups when vehicle advances, to work, other two groups work in vehicle rollback, outer ratchet group plays a role when vehicle advances, the internal clickwork group plays a role in vehicle rollback, and the fine rotation by the differential mechanism shell and the pressure of spring are realized the mutual conversion between the inside and outside ratchet mechanism group.

The above only is preferred embodiments of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1. mechanical locking differential, comprise housing and a left side, right axle shaft, a left side, right axle shaft puts in the housing, it is characterized in that: described housing is provided with and a left side, the side cover of right axle shaft socket, be provided with in the housing and a left side, the ratchet assembly that right axle shaft connects, described ratchet assembly comprises outer ratchet group and internal clickwork group, described outer ratchet group is made up of two ratchets that movably teeth are opposite of pegging graft mutually, be divided into the outer ratchet in a left side and right outer ratchet, described internal clickwork group is made up of two ratchets that movably teeth are opposite of pegging graft mutually, be divided into left internal clickwork and right internal clickwork, ratchet is fixedlyed connected with right internal clickwork outside the described left side, ratchet is fixedlyed connected with left internal clickwork outside the described right side, described internal clickwork group integral body is nested in the outer ratchet group, the outer ratchet in a left side is opposite with the teeth direction of left internal clickwork, and right outer ratchet is opposite with the teeth direction of right internal clickwork.

2. mechanical locking differential according to claim 1 is characterized in that: on ratchet and the right outer ratchet two inclined holes are arranged respectively outside the described left side, be inserted with the bearing pin that fixes with the differential mechanism shell in the inclined hole.

3. mechanical locking differential according to claim 1 is characterized in that: the side cover of described left and right half is inboard fixedly the ratchet that is connected with dual layer opposite teeth with the interlock of the inside and outside ratchet phase of ratchet assembly.

4. mechanical locking differential according to claim 3, it is characterized in that: described connection ratchet slidably is fixed on a left side by spline, on the right axle shaft.

5. mechanical locking differential according to claim 4 is characterized in that: be provided with spring between connection ratchet and the side cover on the described left and right half.