CN2614949Y

CN2614949Y - Vehicle wheel spoke of rim

Info

Publication number: CN2614949Y
Application number: CN 03221470
Authority: CN
Inventors: 赖建辉
Original assignee: 赖建辉
Current assignee: Zhengxing Wheel Group Co., Ltd.
Priority date: 2003-04-22
Filing date: 2003-04-22
Publication date: 2004-05-12
Anticipated expiration: 2013-04-22

Abstract

The utility model relates to a spoke, in particular to a spoke for a car steel ring which has a disc. The disc is homogeneously distributed with a complex number of ventilation holes. The utility model has the structural key points that the ventilation hole is a round through-hole and the intensity of the spoke is not only homogeneous but also reinforced, thereby being uneasy to damage. The utility model has the advantages of longer service life and more safety and reliability.

Description

The spoke of Automobile steel ring

Technical field

The utility model relates to the spoke of a kind of spoke, particularly Automobile steel ring.

Background technology

Be evenly distributed with the breather port of a plurality of oval shapes in the prior art on the spoke of motor tire steel ring, so that the distributing of the heat on tire and the wheel rim, because material is after stressed, deform, thereby set up stresses, the stress intensity of waist circular port in vertical direction and horizontal direction because varying in size of its opening and different, cause near spoke suffered internal stress size breather port uneven, make its intensity inequality, in-use performance descends, thereby make very easily ruptural deformation of spoke, from and make reduce the serious generation that also may cause traffic accident the service life of whole steel ring.

Invention constitutes

The purpose of this utility model is to overcome weak point of the prior art and provides a kind of intensity enhancing, longer service life, the spoke of more safe and reliable Automobile steel ring.

The purpose of this utility model realizes by following approach.

The spoke of Automobile steel ring has disc, and along being evenly distributed with a plurality of breather ports on the circumferencial direction of disc, its structural feature is: breather port is a kind of manhole.

Like this, near the internal stress the circular port not only all equates with the size of horizontal direction at vertical direction, and near the internal stress the circular port all equates on all directions.Therefore, spoke stressing conditions everywhere tends to balance more, and spoke intensity everywhere is more even, and is not fragile, thus the longer service life of whole steel ring.

In addition, what is more important: no matter circular port is in any position, its cross section vertical with vertical force is the transition of circular arc, its stress is less relatively, thus avoided the oval hole when heeling condition and vertical section form wedge angle and produce the steep variation of stress, therefore, its stress concentration of spoke of circular breather port is less, and its intensity is stronger, and spoke is difficult for impaired more, more safe and reliable, these all are the unexpected effects of the utility model.

Though it is little that the shape of breather port changes circular improvement into from oval shape,, but overcome people for a long time to oval shape breather port nothing to be surprised at, do not go to consider the technology prejudice that makes improvements.

The purpose of this utility model can also realize by following approach.

The distribution mode of breather port should be best with the symmetrical distribution.

Like this, breather port is distributed on the disc symmetrically and evenly, and therefore, the distribution of spoke upper stress not only evenly but also radially is to be symmetrically distributed.

Owing to also have a valve port that radially extends along spoke on the spoke, therefore, shape and other breather port of the breather port that is communicated with this valve port have different:

The breather port that is communicated with this valve port is a kind of ellipse hole, the breather port that is symmetrically distributed with this breather port on the spoke then with this breather port congruence, the minor axis of this ellipse breather port and the central lines of valve port.

Like this, slotted eye is bigger at the distribution of stress of long axis direction, and it is less at the distribution of stress of short-axis direction, and the stack of the stress of stress that the centerline direction of the valve port that overlaps with minor axis produces and slotted eye short-axis direction, like this, near the suffered stress of breather port is tended to balance, and adopt slotted eye, can also guarantee that it is the transition of circular arc, stress concentration is less relatively.

The distributed quantity of breather port has difference according to the size of spoke, and 4～12 breather ports that can distribute wherein, are the best with 10 breather ports.

The diameter of breather port has difference according to the size of spoke, and its scope can be between 20mm～45mm.

Like this, for the effect of the intensity that guarantees spoke and ventilation can both reach best, therefore, the diameter of breather port is best with 35mm.

In sum, the utility model has the following advantages compared to existing technology: circular breather port makes the distribution of stress on the spoke more even, thereby the intensity of spoke is not only even but also intensity is strengthened, and is not fragile, has longer service life, more safe and reliable characteristics.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the left view of Fig. 1.

Wherein, 1 disc, 2 breather ports, 21 oval breather port 3 valve ports.

The specific embodiment

Most preferred embodiment:

With reference to Fig. 1, Fig. 2, the spoke of Automobile steel ring has disc 1, is evenly distributed with a plurality of breather ports 2 along the circumferencial direction of disc 1, and breather port 2 is a kind of manhole.Breather port 2 is distributed on the disc 1 symmetrically and evenly, has a valve port 3 that radially extends along spoke on the spoke, the breather port 2 that is communicated with this valve port 3 is a kind of ellipse hole 21, the breather port 2 that is symmetrically distributed with this ellipse breather port 21 on the spoke then with these ellipse breather port 21 congruences, the central lines of the minor axis of this ellipse breather port 21 and valve port 3.The distributed quantity of breather port 2 can be 10, and these 10 breather ports be positioned at disc on the bolt hole position of staggering mutually.The diameter of breather port 21 is 35mm.

It is same as the prior art that present embodiment is not stated part.

Claims

1. the spoke of Automobile steel ring has disc (1), is evenly distributed with a plurality of breather ports (2) along the circumferencial direction of disc (1), it is characterized in that breather port (2) is a kind of manhole.

2. the spoke of Automobile steel ring according to claim 1 is characterized in that, breather port (2) is symmetrically distributed on the disc (1).

3. the spoke of Automobile steel ring according to claim 1, it is characterized in that, the breather port (2) that is communicated with valve port (3) on the spoke is a kind of oval breather port (21), the breather port (2) that is symmetrically distributed with this ellipse breather port (21) on the spoke then with this ellipse breather port (21) congruence, the central lines of the minor axis of this ellipse breather port (21) and valve port (3).

4. the spoke of Automobile steel ring according to claim 1 is characterized in that, the quantity of breather port (2) is 4～12.

5. the spoke of Automobile steel ring according to claim 1 is characterized in that, the diameter of circular breather port (2) is between 20mm～45mm.