The cardan shaft is a mechanical part that connects two axes (tooth shaft and driven shaft) in different organizations to rotate each other to transfer torque. The general engine is mostly connected with the working machine by cardan shaft. In high speed and light load drive systems, some cardanes also have the effect of caching, damping and improving the dynamic characteristics of shafting. The cardan shaft has a large angular compensation working capacity, compact structure, high efficiency of the transmission system, and can reasonably connect the transmission equipment and working machinery and equipment, which is widely used in the design field of Chinese cars, construction machinery and equipment, agricultural machinery and ships.

First, cardan axis classification

According to the structural form of classification, the universal shaft can be divided into cross shaft type, ball cage type, ball fork type, convex block type, ball pin type, ball hinge type, ball hinge plunger pump type, three pin type, three fork lift type, three ball pin type, hinge lift type, etc. Among them, the most common is the cross shaft type, followed by the ball cage type.

According to the size of the torque transmitted in the specific application, it can be divided into medium and heavy duty, small and medium-sized, light and small and medium-sized carbanding shafts. In addition, according to the relative position and position change of the two connected axes, it can be divided into mobile coupling and movable coupling.

2. Customized according to the flange connection method

1, pure anchor bolt hole connection flange

High strength bolts and self-locking nuts are used to connect the two flanges, and the sliding friction force of the flanges is used to transmit torque. This kind of flange design scheme is suitable for transmitting torque is small, the speed is relatively high cardan shaft. The flange design scheme of light cardan shaft is pure flange.

2, the inner hole key connection flange

The mutual effect of the inner hole key and the high-strength bolt improves the fusion characteristics of the two sides of the flange, and also improves the efficiency of the torque transmission of the universal shaft. It is generally used in machines and equipment with moderate impact loads. Small and medium-sized cardan shaft flange design scheme according to the inner hole key.

3. Tooth insert coupling flange

The use of flange several convex and concave, and the distribution of teeth cooperate with each other to transfer torque, flange fusion reliability is good, long service life. Suitable for heavy impact loads, high frequency of positive and negative rotation of machinery and equipment.

4, the inner hole tooth connection flange

The connection between the cardan shaft flange and the half-coupling flange is completed by using several distributed tooth profiles of 40° Angle. Flange connection self-determined, easy to install. In the design scheme of medium and heavy cardan shaft, this kind of flange is used more.

Third, embedded elastic yellow cardan shaft customized

What are the benefits of production and processing of this kind of design scheme?

The end of the installation on both sides of the cardigan shaft can be operated, but then the problem comes, the active end connection of the cardigan shaft is tight and not easy to loose, and the passive end connection is usually loose and easy to loose after operation, so the high efficiency of the cardigan shaft transmission torque is reduced. Modification of the embedded elastic cardan shaft makes the fusion position in the working situation does not shrink, maintain the length of mutual matching does not change, improve the reliability of the transmission system.

Fourth, with protective shell cardan shaft customized

What are the benefits of production and processing of this kind of design scheme?

Retractable structure modified protective housing, so that the spline shaft will last longer.

Gear shaft modification of the protective housing, so that the internal and external spline shaft relative speed, environmental factors of dust and water can not enter the spline shaft inside, so as to promote the use of spline shaft pair for a longer period. It is especially suitable for places where the embellishment standard is more limited and the natural environment is more extreme.