CN203857002U

CN203857002U - Differential cross shaft

Info

Publication number: CN203857002U
Application number: CN201420274416.8U
Authority: CN
Inventors: 周德红; 刘志平; 徐安健; 陈作云
Original assignee: SAIC Iveco Hongyan Commercial Vehicle Co Ltd
Current assignee: SAIC Iveco Hongyan Commercial Vehicle Co Ltd
Priority date: 2014-05-27
Filing date: 2014-05-27
Publication date: 2014-10-01
Anticipated expiration: 2024-05-27

Abstract

A differential cross shaft is composed of a long shaft, two short shafts and a connecting body. Two through holes are formed in the connecting body and equal in diameter thereof. Central shafts of the through holes are perpendicular and interacted with each other. The long shaft is inserted in one through hole. The short shafts are inserted in the other through hole and further arranged on two sides of an axial direction of the long shaft. The differential cross shaft has the advantages of low processing difficulty, guaranteed processing accuracy of parts and high processing efficiency.

Description

Differential spider

Technical field

The utility model relates to a kind of differential mechanism, relates in particular to a kind of differential spider.

Background technique

On differential mechanism, as shown in Figure 1, although the cross axle intensity of this structure is better, difficulty of processing is larger for traditional cross axle structure, and the especially bad assurance of the relative positional accuracy between several axles is very high to the requirement of process equipment.

Model utility content

For the problem in background technique, the utility model proposes a kind of differential spider, its structure is: described cross axle is comprised of a major axis, two minor axises and a connecting body; On described connecting body, be provided with two through holes, the diameter of two through holes is identical, and the central shaft of two through holes is orthogonal and crossing; Described major axis is socketed in one of them through hole, and two short sleeves are connected in another one through hole, and two minor axises are positioned at the both sides of major axis on axially.

Principle of the present utility model is: four axles on cross axle are improved to Split type structure by original overall structure, then by connecting body, connect four axles, before although structural strength is not so good as, but difficulty of processing can significantly be reduced, relative positional accuracy in course of working between several axles can more easily be guaranteed, and has indirectly also just improved work efficiency, has reduced processing cost.

For fear of minor axis, freely rotate, the utility model has also been done following improvement: the interior edge face of described minor axis is cambered surface, and described cambered surface is mated with the surface profile of major axis, minor axis the inner and major axis Surface Contact.After Assembly of the parts is good, keep in touch on cambered surface on minor axis interior edge face and major axis surface, this has just formed constraint between minor axis and major axis, can avoid minor axis freely to rotate, simultaneously, two rotating shafts have in fact also formed certain constraint to the circumferential movement of major axis, can reduce the wearing and tearing that caused by rotation.

Preferably, the profile of described connecting body is cuboid.

Useful technique effect of the present utility model is: reduced the difficulty of processing of cross axle, the machining accuracy of part is more easily guaranteed, and work efficiency is very high.

Accompanying drawing explanation

The typical structure of Fig. 1, existing cross axle;

Fig. 2, structural representation of the present utility model;

Fig. 3, structural profile schematic diagram one of the present utility model;

Fig. 4, structural profile schematic diagram two of the present utility model;

Fig. 5, minor axis structural representation;

In figure, the corresponding title of each mark is respectively: major axis 1, minor axis 2, connecting body 3, through hole 3-1, existing cross axle 4.

Embodiment

A differential spider, its structure is: described cross axle is comprised of a major axis 1, two minor axises 2 and a connecting body 3; On described connecting body 3, be provided with two through hole 3-1, the diameter of two through hole 3-1 is identical, and the central shaft of two through hole 3-1 is orthogonal and crossing; Described major axis 1 is socketed in one of them through hole 3-1, and two minor axises 2 are socketed in another one through hole 3-1, and two minor axises 2 are positioned at the both sides of major axis 1 on axially.

Further, the interior edge face of described minor axis 2 is cambered surface, and described cambered surface is mated with the surface profile of major axis 1, minor axis 2 the inners and major axis 1 Surface Contact.

Further, the profile of described connecting body 3 is cuboid.

Claims

1. a differential spider, is characterized in that: described cross axle is comprised of a major axis (1), two minor axises (2) and a connecting body (3); On described connecting body (3), be provided with two through holes (3-1), the diameter of two through holes (3-1) is identical, and the central shaft of two through holes (3-1) is orthogonal and crossing; Described major axis (1) is socketed in one of them through hole (3-1), and two minor axises (2) are socketed in another one through hole (3-1), and two minor axises (2) are positioned at the both sides of major axis (1) on axially.

2. differential spider according to claim 1, is characterized in that: the interior edge face of described minor axis (2) is cambered surface, and described cambered surface is mated with the surface profile of major axis (1), minor axis (2) the inner and major axis (1) Surface Contact.

3. differential spider according to claim 1, is characterized in that: the profile of described connecting body (3) is cuboid.