CN204371970U - A kind of constant velocity driveshaft ball cage - Google Patents

Abstract

The utility model discloses a kind of constant velocity driveshaft ball cage, comprise bell shell and star sleeve, described star sleeve is arranged in bell shell, the outer surface of described star sleeve is provided with outer alley, and the outer alley of internal surface correspondence of described bell shell is provided with interior alley, and described interior alley and outer alley coordinate formation alley, it is characterized in that, described interior alley comprises interior liner ball road and inner arc alley, and described interior liner ball road is positioned at the opening end of bell shell, the inclined-plane in described interior liner ball road and the cambered surface of outer arc alley tangent.The utility model under equal conditions adds the thickness of alley, thus improves alley intensity, thus enables alley bear larger load, adds a kind of corner of constant velocity driveshaft ball cage simultaneously.

Description

A constant velocity drive shaft ball cage

technical field

The utility model relates to a vehicle constant speed drive shaft, in particular to a constant speed drive shaft ball cage.

Background technique

The ball cage is also called "constant velocity universal joint" and is an important part of the transmission system of a car. Its function is to transmit the power of the engine from the transmission to the two front wheels to drive the car to run at high speed. There are many types of constant velocity universal joints used in cars, among which the most widely used are ball cage type constant velocity universal joints and tripod type constant velocity universal joints, which mainly include sliding sleeves, three-way shafts, transmission shafts, star It is composed of the main parts of sleeve, cage and bell shell.

The inner ballway of the bell-shaped shell and the outer ballway of the star-shaped sleeve of a constant-velocity drive shaft cage used in the market are both arc-shaped. Without increasing the thickness of the bell-shaped shell and the star-shaped sleeve, the outer ball The thickness of the fairway composed of the fairway and the inner fairway is relatively thin, and it is easy to cause damage when it bears a large load. At the same time, the corner of the ball cage of the arc-shaped fairway is also small, so there is room for improvement.

Utility model content

The purpose of the utility model is to overcome the defects in the above-mentioned prior art and provide a constant-velocity drive shaft ball cage with high strength and large rotation angle.

In order to achieve the above purpose, the utility model provides a constant velocity drive shaft ball cage, including a bell-shaped housing and a star-shaped sleeve, the star-shaped sleeve is arranged in the bell-shaped housing, and the outer surface of the star-shaped sleeve is provided with an outer The inner surface of the bell-shaped shell is provided with an inner lane corresponding to the outer lane, and the inner lane and the outer lane cooperate to form a lane. The inner lane includes an inner straight lane and an inner arc lane, and the inner straight lane is located in the bell-shaped At the open end of the shell, the inclined plane of the inner straight fairway is tangent to the arc surface of the outer arc fairway.

It is further set that: the outer alley includes an outer arc and an outer straight alley, the outer arc and the inner arc are mirror-symmetrically arranged, and the outer straight alley and the inner straight are arranged mirror-symmetrically.

Compared with the prior art, the utility model sets the inner straight fairway at the opening end of the bell-shaped shell, and the star-shaped sleeve sets the corresponding outer straight fairway, thereby increasing the inner fairway and star shape of the bell-shaped shell under the same conditions. The thickness of the outer fairway of the sleeve improves the strength of the fairway, improves the load capacity of the fairway, and improves the safety performance of the ball cage; at the same time, the arc shape is changed to a tangential slope, which increases the corner of the ball cage and improves the safety performance of the ball cage. The ability of the car to respond to sudden changes improves the safety of driving.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the utility model outer alley;

Fig. 2 is the structural representation of the bell shell in Fig. 1;

Fig. 3 is A-A sectional view of Fig. 2;

Fig. 4 is the structural representation of the star sleeve in Fig. 1;

Fig. 5 is a B-B sectional view of Fig. 4 .

In conjunction with the accompanying drawings, the following reference numerals are marked thereon:

1-bell shell; 11-inner fairway; 111-inner arc fairway; 112-outer straight fairway; 2-star sleeve; 21-outer fairway; 211-outer arc fairway; 212-outer straight fairway; 3-cage ; 4-steel ball.

Detailed ways

A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

A constant velocity drive shaft ball cage of the utility model is shown in Figures 1 to 5, including a bell-shaped shell 1, a star-shaped sleeve 2, a cage 3 and steel balls 4, and the star-shaped sleeve 2 is arranged inside the bell-shaped shell 1 A cage 3 is arranged between the star-shaped sleeve 2 and the bell-shaped shell 1, steel balls 4 are arranged around the cage 3, and the steel balls 4 are evenly spaced; the outer surface of the star-shaped sleeve 2 is provided with a plurality of outer ballways 21, The outer lanes 21 are evenly spaced, and the inner surface of the bell-shaped shell 1 is provided with an inner lane 11 corresponding to the outer lane 21, and the steel balls 4 are respectively accommodated in the inner lane 11 and the outer lane 21 formed by cooperation; the inner lane 11 Including an inner arc lane 111 and an inner straight lane 112, the inner straight lane 112 is located at the opening end of the bell shell 1, the slope of the inner straight lane 112 is tangent to the arc surface of the inner arc lane 111, and the outer lane 21 also includes an outer straight lane 212 and The outer arc lane 211, the inner arc lane 111 and the outer arc lane 211 are mirror-symmetrically arranged, and the inner straight lane 112 and the outer straight lane 212 are also mirror-symmetrically arranged.

Compared with the prior art, the utility model sets the inner straight fairway 112 at the opening end of the bell-shaped shell 1, and the star-shaped sleeve 2 sets the corresponding outer straight fairway 212, thereby increasing the bell-shaped shell 1 under the same conditions. The thickness of the inner fairway 11 and the outer fairway 21 of the star-shaped sleeve 2, thereby improving the strength of the fairway, improving the load capacity of the fairway, and improving the safety performance of the ball cage; at the same time, the arc shape is changed to a tangential slope, increasing the The corner of the ball cage is improved, the ability of the car to respond to sudden changes is improved, and the safety of driving is improved.

What is disclosed above is only a specific embodiment of the utility model, but the utility model is not limited thereto, and any changes conceivable by those skilled in the art should fall within the protection scope of the utility model.

Claims (2)

1. a constant velocity driveshaft ball cage, comprise bell shell and star sleeve, described star sleeve is arranged in bell shell, the outer surface of described star sleeve is provided with outer alley, and the outer alley of internal surface correspondence of described bell shell is provided with interior alley, and described interior alley and outer alley coordinate formation alley, it is characterized in that, described interior alley comprises interior liner ball road and inner arc alley, and described interior liner ball road is positioned at the opening end of bell shell, the inclined-plane in described interior liner ball road and the cambered surface of outer arc alley tangent.

2. a kind of constant velocity driveshaft ball cage according to claim 1, is characterized in that, described outer alley comprises outer arc alley and outer liner ball road, and described outer arc alley and inner arc alley are that specular is arranged, and described outer liner ball road and interior liner ball road are that specular is arranged.