CN201739365U

CN201739365U - Countershaft transmission gap adjusting structure

Info

Publication number: CN201739365U
Application number: CN201020237637XU
Authority: CN
Inventors: 方国水; 叶龙贵; 王希凡; 叶辉; 方敏
Original assignee: WUXI VEHICLE ELECTRIC EQUIPMENT CO Ltd
Current assignee: WUXI VEHICLE ELECTRIC EQUIPMENT CO Ltd
Priority date: 2010-06-25
Filing date: 2010-06-25
Publication date: 2011-02-09
Anticipated expiration: 2020-06-25

Abstract

The utility model discloses a countershaft transmission gap adjusting structure, which comprises an armature shaft and a reducer shaft, a ball bearing is disposed in centers of connected end faces of the two shafts, half of the ball bearing is embedded into the reducer shaft, and an arc-shaped groove matched with the ball bearing is disposed in the center of the end face of the armature shaft, and the arc length of the arc-shaped groove is larger than half of the maximum circumference length of the ball bearing. The utility model has the benefits: during countershaft transmission of the two shafts, the end faces of the two shafts can be prevented from contacting with each other through the rolling friction of the ball bearing in the middle, and the frictional coefficient of the rolling friction is obviously smaller than that of the sliding friction, thereby playing a role in reducing the friction.

Description

To the shaft drive gap adjusting structure

Technical field

The utility model relates to a kind of to the shaft drive structure, specifically the coupling shaft docking structure of starter armature axle and planetary reducer.

Background technique

At the docking structure of armature shaft top and planetary reducer main shaft, all be to adopt the axial end contact usually, add some lubricant greases at surface of contact, but still can produce friction between two axial end.So the utility model is exactly to solve the problem that has friction between the abutment shaft end face.

The model utility content

The purpose of this utility model provides a kind of to the shaft drive gap adjusting structure, solves the problem that has friction between the abutment shaft end face commonly used.

The purpose of this utility model is to be achieved through the following technical solutions:

To the shaft drive gap adjusting structure, comprise armature shaft and reducer shaft, the center that connects end face at two axles is provided with ball, half of described ball embeds reducer shaft inside, and being provided with the arc groove that cooperates with ball in the end face central authorities of armature shaft, the arc length of described arc groove is less than half of ball largest circumference length.

The beneficial effects of the utility model are, two axles to driven off by shaft process in, the end face that can prevent two axles by the rolling friction of ball in the centre contacts, and the friction factor of rolling friction is significantly less than the friction factor of sliding friction, so can play the effect that reduces to rub.

Description of drawings

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

Fig. 1 is the structural drawing to the shaft drive gap adjusting structure;

Fig. 2 is an A place partial enlarged drawing among Fig. 1.

Embodiment

Shown in Fig. 1-2, to the shaft drive gap adjusting structure, comprise armature shaft 1 and reducer shaft 3, the center that connects end face at two axles is provided with ball 2, half of described ball 2 embeds reducer shaft 3 inside, and being provided with the arc groove that cooperates with ball 2 in the end face central authorities of armature shaft 1, the arc length of described arc groove is less than half of ball largest circumference length.

The beneficial effects of the utility model are, two axles to driven off by shaft process in, can prevent the end contact of two axles by ball in the rolling friction of centre, and the coefficient of friction of rolling friction is significantly less than the coefficient of friction of sliding friction, so can play the effect that reduces to rub.

Claims

1. to the shaft drive gap adjusting structure, comprise armature shaft and reducer shaft, it is characterized in that, the center that connects end face at two axles is provided with ball, half of described ball embeds reducer shaft inside, and being provided with the arc groove that cooperates with ball in the end face central authorities of armature shaft, the arc length of described arc groove is less than half of ball largest circumference length.