Different classifications of cardan shafts

A cardan shaft is a mechanical part that connects two shafts (gear shaft and driven shaft) in different organizations, so that they rotate to each other to transmit torque. Generally, most engines are connected to the working machine by means of a cardan shaft. In the high-speed and light-load driving force transmission system, some cardan shafts also have the functions of buffering, damping and improving the dynamic characteristics of the shafting. Cardan shafts have great angular compensation capabilities, compact structure, and high efficiency transmission system, which can reasonably connect transmission equipment and mechanical equipment at work. They are used in the fields of Chinese cars, construction machinery, agricultural machinery, and ship design. Universal use.

Cardan shaft classification
According to the structure, the universal joint shaft can be divided into cross shaft type, ball cage type, ball fork type, bump type, ball pin type, ball hinge type, ball hinge plunger pump type, three pin type, three fork lift type , Three-ball pin type, hinged lifting 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, medium and small, light and medium and small universal joint shafts. In addition, it can be divided into movable coupling and movable coupling according to the relative position and position change of the two shafts to be connected.

Customized according to flange connection
1. Connection flange with pure anchor bolt hole
High-strength bolts and self-locking nuts are used to connect the flanges on both sides, and the sliding friction force of the flanges is used to transmit torque. This type of flange design is suitable for universal joint shafts with low torque and high speed. The flange design scheme of the light universal joint shaft is based on the pure flange method.

2. Inner hole key connection flange
The mutual effect of the inner key and the high-strength bolt improves the fusion characteristics of the flanges on both sides, and also improves the high efficiency of torque transmission of the cardan shaft. Generally used in machinery and equipment places with medium level of impact load. The flange design of medium and small universal joint shafts is based on the method of inner hole key.

3. Jaw-type connecting flange
Utilizing several convex and concave flanges, and the distributed teeth cooperate with each other to transmit torque, the reliability of flange fusion is good, and the service life is long. Suitable for heavy impact load, high frequency of forward and reverse machinery and equipment.

4. Connecting flange with inner hole tooth
Several distributed 40° angle tooth profiles are used to complete the connection between the universal joint flange and the half coupling flange. The flange connection is self-determined, and the installation is convenient. In the design of medium and heavy universal joint shafts, many of these flanges are used.

Built-in bullet yellow cardan shaft customization
The universal joint shaft can be operated after the installation on both sides, but the problem is that the positive end connection of the universal joint shaft is tightly matched and not easy to loosen, while the passive end connection is usually loosely matched with each other, and it is very easy to loosen after operation. In that case, the high efficiency of the universal joint shaft to transmit torque is reduced. Modification of the embedded elastic yellow cardan shaft makes the position of the fusion not retracted under working conditions, maintains the length of the mutual cooperation without changing, and improves the reliability of the transmission system.

Customized universal joint shaft with protective shell
The protective shell is modified on the telescopic organization, so that the service life of the spline shaft will be longer.
The gear shaft is modified with a protective shell, so that when the inner and outer spline shafts are relative speed, the dust and water of environmental factors cannot enter the spline shaft, so that the spline shaft pair can be used for a longer time. It is especially suitable for places where the lubrication standards are limited and the natural environment is more extreme.