The force of the two-shaft cylinder is not double

The force of the two-shaft cylinder is not double

① What is a two-shaft cylinder?

A two-shaft cylinder, also known as a two-rod cylinder, is a kind of pneumatic actuator. Its structure is similar to that of a single shaft cylinder, except that it has two piston rods in parallel, which can simultaneously output double the torque. Dual-shaft cylinders are suitable for applications requiring high torque output, such as jacks, presses, shears, etc.

② the working principle of the dual-shaft cylinder

The working principle of the two-axis cylinder is similar to that of the single-axis cylinder, which is to push the piston movement by compressed air, thus output torque. However, due to the special structure of the two piston rods, the output torque of the two-shaft cylinder can be doubled.

③ Is the strength of the two-shaft cylinder really double?

The answer to this question is not simple. Because the output torque of the two-shaft cylinder is doubled, it also depends on the specific application and working conditions.

In the case of no load, the output torque of the two-shaft cylinder can indeed be doubled. However, in the case of load, such as when the actuator needs to carry a heavy load, the load distribution of the two-shaft cylinder is not balanced, which will form a torque offset, resulting in the output torque is not double. In addition, due to the complex structure of the two-shaft cylinder, the friction is also large, making the actual output torque more complicated.

④ The advantages and disadvantages of dual-shaft cylinder

1. Advantages: The output torque is large, which can meet some high torque applications; Compact structure and small size.

2. Disadvantages: complex structure, difficult production and processing; Due to friction, the actual output torque is difficult to determine.

⑤. Conclusion

Although it is controversial whether the output torque of the two-shaft cylinder is really double, it still has irreplaceable advantages in some applications. Need to choose whether to use according to the specific use requirements, working conditions and other factors. In practical application, the torque deviation can be reduced and the stability and accuracy of the output torque can be improved by selecting high quality dual-shaft cylinder and taking some improvement measures.