Universal joint coupling structural types, universal joint coupling classification and purchasing tips
Universal joint coupling uses its The characteristics of the mechanism ensure that the two axes are not on the same axis, but the two connected axes can rotate continuously and reliably transmit torque and motion when there is an angle between the axes. The biggest feature of the universal coupling is that its structure has large angular compensation capability, compact structure, and high transmission efficiency. The angle between the two axes of universal couplings of different structural types is different, generally between 5°-45°.
Structural Type
Universal couplings have many structural types, such as: cross shaft type, ball cage type, ball fork Type, bump 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.; the most commonly used is the cross shaft type, followed by the ball cage Mode. In practical applications, according to the size of the transmitted torque, they are divided into heavy, medium, light and small.
Purpose
It is used to connect two shafts (drive shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque. Mechanical Parts. In high-speed and heavy-load power transmission, some couplings also play the role of buffering, vibration reduction and improving the dynamic performance of the shaft system. The coupling consists of two halves, which are connected to the driving shaft and the driven shaft respectively. Generally, most power machines are connected to working machines by means of couplings.
National Standard Specifications
The cross-shaft universal coupling is a universal coupling with large usage, and the bearing is the easy-to-use universal coupling of the cross-shaft universal coupling. damaged parts. The main difference between several large cross-shaft universal couplings is the change of the bearing seat and cross fork head, forming different structural forms. In order to ensure the synchronization of the main and driven shafts, the duplex form is used in practical applications. The connection method of the duplex is nothing more than welding or flange connection through bolts. The length of the middle can be changed in many forms. The cross head components of the cross-shaft universal coupling have the following forms:
SWC type integral fork head cross-shaft universal coupling (JB/ T 5513-2006), SWP type partial bearing cross-shaft universal coupling (JB/ T 3241-2005), SWZ type integral bearing seat cross-shaft universal coupling (JB/ T 3242-1993), WS type small double cross-shaft universal coupling (JB/T 5901-1991), WSD small single cross-shaft universal coupling (JB/T 5901-1991), Cross package for SWP cross-shaft universal coupling (JB/T 7341.1-2005), WGC Cross package for type cross-shaft universal coupling (JB/T 7341.2-2006).
The above heavy-duty and small cross-shaft universal couplings are all universal types. Different models in the automotive industry have their own dedicated cross-shaft universal couplings or other types of universal couplings. device. For example, cars use ball cage universal couplings. In addition, agricultural machinery, industrial machinery and other sports machinery products also have special universal couplings. Most lifting products use cross-axis universal couplings.
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