The structure of the universal coupling

The cross-shaft cardan shaft can absorb and reduce the fluctuation of the output torque of the diesel engine. For the diesel power unit equipped with a reduction gear box, it can reduce the knock on the gear face when the torque changes. The coupling that is durable and easy to replace the wearing parts should be selected. Universal coupling transmission efficiency is high, used for high-power transmission, and its Angle compensation capacity is relatively large. The universal coupling has the advantages of smooth carrying, low noise, convenient installation and disassembly and maintenance, compact and reasonable structure, which makes the carrying more reliable. The performance of the machine has been greatly exerted and the production of the machine has been increased.

Due to manufacturing, installation, deformation under load and temperature changes, it is difficult to keep the two axes strictly and accurately aligned after installation adjustment. There are the necessary X and Y displacements and skew angles. When the radial displacement is large, the slider coupling can be selected, and the universal coupling can be selected for the connection of the angular displacement is large or intersecting two axes. When the two axes produce a large additional relative displacement during the working process, the flexible coupling should be selected. According to the magnitude and direction of the relative displacement of the two axes.

Universal coupling has a variety of structural types: cross shaft type, ball cage type, ball fork type, convex block type, ball pin type, ball hinge type, ball hinge plunger type, three-pin type, three-fork rod type, three-ball pin type, hinge rod type, etc. Commonly used for the cross shaft type, followed by the ball cage type. In practical applications, according to the size of the transmitted torque, it is divided into heavy, medium, light and small. In the universal coupling widely used is the cross universal coupling.

The working principle of the cardan shaft is that the cardan coupling makes use of its structural characteristics, so that the two axes are not on the same axis, and the connected two axes can achieve continuous rotation under the condition that there is an Angle between the axes, and reliably transmit torque and movement. The characteristics of the universal coupling are: its structure has a large angular compensation capacity, compact structure and high transmission efficiency. Different structure types of universal coupling two axis Angle is not the same, with universal coupling, the machine is more convenient to run, transmission performance is better.