CN2268815Y

CN2268815Y - Non-wheelspin differential mechanism

Info

Publication number: CN2268815Y
Application number: CN96213079U
Authority: CN
Inventors: 孙孝安; 刘国平; 姜光明
Original assignee: Military Representative Office Of Pla General Staff Headquarters And Arms Corps In Tianjin; TIANGONG ENGINEERING MACHINERY Co Ltd TIANJIN
Current assignee: Zhongwaijian Development Co Ltd
Priority date: 1996-06-13
Filing date: 1996-06-13
Publication date: 1997-11-26
Anticipated expiration: 2006-06-13

Abstract

The utility model relates to a differential mechanism, which is characterized in that a driven ring system composed of outer ring teeth and inner ring teeth is integral; the teeth of the driven ring system form a reverse ladder shape; the tooth top is provided with an inclined plane chamfer; the driven ring on the outside of a spline sleeve is provided with a conical spring through a spring seat; the tooth shape of a silencing ring embedded in the driven ring is rectangular. The utility model can be interchanged for installation with the differential mechanism on a drive bridge of the existing wheel-typed vehicle. The utility model has the advantages of good neutrality, no attachment torque generation, steady engagement, low cost and simple manufacture technique. Besides, the drive ring and the driven ring of the utility model are separated.

Description

The zero slip differential mechanism

The utility model belongs to F16H transmission device class technology, particularly relates to a kind of zero slip differential mechanism that is used on the wheeled vehicle wheel drive bridge.

Present known dental formula differential part-structure is to adopt the driven torus of 1. being made up of outer ring tooth and internal ring gear, its outer ring tooth and internal ring gear are not made one, and generally adopt outer ring tooth power transmission, internal ring gear separates, the outer ring tooth is made as down stepped tooth, and internal ring gear is made the ladder tooth layout of stepped tooth.2. this structure is used for compressing the cylindrical spring that adopts with the spring that resets, and utilizes to compress and drive on its path to reset.3. the noise reduction ring profile of tooth in this structure is made as the stepped tooth structure.It is reliable that this differential mechanism has the transmission locking, high advantage of little life-span of parts depreciation own, but still also deposit some shortcomings, the manufacturing of first driven torus is complicated, can not clamping, an a kind of cutter shape, so precision is difficult to guarantee; It two is to adopt cylindrical spring in this structure, utilizes on its path to compress, and produces the additional drag square, and is relatively poor to neutrality; It three is that the manufacturing process of noise reduction ring in this structure is complicated.

The purpose of this utility model is to overcome the deficiency in the known technology, makes simple, no additional drag square and neutrality is reached the easily zero slip differential mechanism of assurance of precision well and provide a kind of.

The purpose of this utility model is achieved in that

By baffle ring central rings is housed existing in by endoporus at ring initiatively; After being embedded with the noise reduction ring, driven torus is installed on the initiatively left and right both ends of the surface of ring, on the internal spline that becomes one with driven torus, be linked with spline housing, the spacer of packing in the spline housing, be equipped with by spring seat on the driven torus of spline housing outside on this architecture basics of spring composition, carrying out architecture advances again 1., is that outer ring tooth and internal ring gear are made an integral body with described driven torus architecture advances promptly, its global shape is made as down stepped tooth, and portion is shaped on chamfer at tooth top.2. the spring of installing by spring seat on the driven torus of described outside at Hua Jiantao that compresses Yu reset must be taper spring, directly be pressed in the outer ring tooth of driven torus on its big footpath.3. the described profile of tooth that is embedded with the noise reduction ring at driven torus is made as rectangular teeth.

Advantage and the good effect that the utlity model has are: can exchange with the differential mechanism on the existing wheeled vehicle wheel drive bridge and install, because to the isostructural improvement of driven torus, so it is simple to have the driven torus manufacturing, No. one time clamping, a kind of cutter just can shape, the advantage that precision easily guarantees.In addition, the utility model is good to neutrality, and no additional moment produces, and the active ring separates with driven torus, smooth engagement, and cost is lower, and manufacturing process is simple.

The utility model has following accompanying drawing:

Fig. 1 is the utility model structural representation;

Fig. 2 is the structural representation of driven torus 5 among Fig. 1;

Fig. 3 is the A-A rotation cross-sectional view of Fig. 2;

Fig. 4 is the C-C cross-sectional view of Fig. 2;

Fig. 5 reaches the structural representation of driven torus 5 to moment of torsion for initiatively encircling 7;

Fig. 6 is the structural representation of driven torus 5 and central rings 6.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

In initiatively encircling 7 endoporus, central rings 6 is housed, is connected and fixed by baffle ring 8 between them.Outer ring tooth and internal ring gear are made an integral body, the driven torus 5 of formation, referring to Fig. 2～Fig. 4, its global shape is made as down stepped tooth, and is shaped on chamfer in tooth top portion.Driven torus is embedded with is contained in the initiatively left and right sides both ends of the surface of ring behind the noise reduction ring 9, noise reduction ring structure wherein is both in order to make its noise reduction reliable and manufacturing process is simple, ring engages, separates fast steadily with driven torus in order to make initiatively again, and makes the structure that profile of tooth is a rectangular teeth.Be connected with spline housing 1 on the internal spline that becomes one with driven torus, spacer 2 is packed in the spline housing, on the driven torus of the outside by spline housing, the taper spring 4 that has spring seat 3 is installed, directly be pressed in the outer ring tooth of driven torus on its big footpath.

When normal vehicle operation, initiatively encircle 7 and fall stepped tooth by it moment of torsion is reached driven torus 5, referring to Fig. 5.Driven torus reaches spline housing 1 by the internal spline on it, by the semiaxis in the insertion spline housing moment of torsion is passed to the wheel at two ends again.

When the vehicle differential travels, i.e. turn inside diameter, wheel one external force in the outside is given on ground, order about outboard wheels and rotate faster than inboard wheel, this moment the outside one end driven torus rotating speed also faster than ring initiatively, cause the driven torus of former contact to fall stepped tooth and separate with ring initiatively.Because central rings 6 joins together with the active ring, then also relatively rotates between driven torus and the central rings, the driven torus inclined-plane will be along the trapezoidal flank of tooth ascending motion of central rings, until tooth top.Stepped tooth separates driven torus fully with initiatively encircling like this, and transmission of power is interrupted, and this side driven torus becomes freewheel, thereby the differential of realizing the both sides wheel travels.Be embedded in the driven torus owing to noise reduction ring 9 again, driven torus rises, the noise reduction ring also rises, when driven torus separates with the active ring, noise reduction ring rectangle tooth top also just in time is supported on the central rings platform, from and guarantee that initiatively ring and driven torus are in to separate and reach and eliminate both sides and fall Strike note between the stepped tooth.

When turn inside diameter finishes to change straight-line travelling over to, because external force disappears, outboard wheels is in servo-actuated, resistance in its Transmitted chains causes the driven torus that initiatively encircles faster than free state, after the driven torus that initiatively encircles relative free state turned over several angle, voiceless sound ring rectangular teeth fell into the recessed aerial of central rings platform, driven torus fall stepped tooth just immediately with initiatively encircle the corresponding flank of tooth and engage, the power transmission is connected immediately, and the utility model returns to the cruising state again.

Claims

1. zero slip differential mechanism, mainly be by in the endoporus that initiatively encircles, central rings being housed by baffle ring, after being embedded with the noise reduction ring, driven torus is installed on the initiatively left and right sides both ends of the surface of ring, be connected with spline housing on the internal spline that becomes one with driven torus, in spline housing, pack into every magnetic, by spring seat spring being installed on the driven torus of spline housing outside forms, it is characterized in that: 1. described driven torus structure is, outer ring tooth and internal ring gear are made an integral body, its global shape is made as down stepped tooth, and portion is shaped on chamfer at tooth top; The spring of installing by spring seat on the driven torus of 2. described outside at spline housing that compresses Yu reset is a taper spring, directly is pressed in the outer ring tooth of driven torus on its big footpath; The profile of tooth of the 3. described noise reduction ring that is embedded with at driven torus is made as rectangular teeth.