How do Cardan shafts work, type and installation?

 

universal joint coupling is commonly used to transmit rotational-aligned It rotational motion between the two shafts. It has played a crucial role in China after decades of development. Now, let's learn about the working principle, types, and installation methods of universal joint couplings.

Working principle:
A universal joint coupling connects two shafts using two joints and transmits rotational motion through an intermediate transmission shaft. These joints are typically universal joints or flexible bearings, which allow the shafts to have a certain degree of offset and angular movement, thereby maintaining continuous transmission of the transmission shaft. When one shaft rotates, the rotational motion is transmitted to the other shaft through the linkage between the transmission shaft and the joints.

Types:
1. Single Cardan Shaft: It consists of one universal joint and one transmission shaft, suitable for small angular displacement between two shafts. It can transmit rotational motion in one plane but introduces some angular deviation and speed fluctuations.

2. Double Cardan Shaft: It consists of two universal joints and one transmission shaft, typically connected in a "V" shape. This structure can overcome the issues of angular deviation and speed fluctuations in single Cardan shafts while providing a more stable and smooth transmission.

Installation methods:
The installation method of a universal joint coupling depends on specific applications and design requirements. Generally, one end of the universal joint coupling is connected to the driving shaft (e.g., engine output shaft), and the other end is connected to the driven shaft (e.g., transmission system or wheels). During installation, the following points need to be considered:

Alignment: Ensure that the centerlines of the two shafts are in the same straight line to reduce unnecessary offset and vibration.

Angle: Adjust the relative angle between the universal joint coupling and the shafts according to application requirements, keeping optimal transmission efficiency within the operating range.

Secure support: Use appropriate support brackets or support devices to fix and support the universal joint coupling, ensuring its stable operation and reducing vibration and noise.
It is important to note that the specific design and installation methods of universal joint couplings may vary depending on different application fields. To ensure effectiveness and reliability in practical applications, it is strongly recommended to determine the most suitable universal joint coupling and perform appropriate installation based on specific engineering design requirements and manufacturer's guidelines. This ensures the performance and lifespan of the universal joint coupling while improving equipment operating efficiency and safety. If you have any further questions regarding universal joint couplings, I would be happy to assist you.