Novel two-degree-of-freedom pneumatic cylinder

Abstract

The invention discloses discloses a novel two-degree-of-freedom pneumatic cylinder. The novel two-degree-of-freedom pneumatic cylinder comprises a support, a cylinder body, a cylinder liner, a pistonrod, a piston rod, an end cover, an end cover and a piston, wherein the piston rod is connected with the piston and is connected with a driving motor through a connecting shaft sleeve; one end of theconnecting shaft sleeve is connected with a driving shaft of the driving motor through a spline; one end of the piston rod is connected with the piston; the other end of the piston rod is connected with load; middle peripheral platforms of the piston periodically communicate with middle radial through holes of the cylinder sleeve; the middle peripheral platforms of the piston are arranged at equalintervals; two groups of blind holes of the piston communicate with the middle peripheral platforms of the piston through middle radial holes of the piston, so that periodic change of phase difference being pai produced by the flow volume and the direction of compressed air in accommodating cavities formed in the two sides of the air cylinder can be ensured, and thus, periodic reciprocating motion of the piston rods can be realized. Through the methods of changing the pressure of the compressed air, rotation speed of the driving motor, the quantity of middle platforms of the piston, axial length of the middle platforms of the pistons or axial lengths of pressure equalization grooves, reciprocating motion amplitude values of the piston rods can be controlled.

Description

Technical field [0001] The invention relates to a pneumatic cylinder whose piston rod can move with two degrees of freedom. Background technique [0002] Traditional drum cleaning equipment has a single-degree-of-freedom rotation movement. For example, the roller brush of road guardrail cleaning vehicles, rail transit vehicles and automobile cleaning roller brushes, cannot effectively remove surface contaminants, and usually requires secondary cleaning or lower cleaning speed. Ensure the cleaning effect. [0003] The Chinese patent with application number 201410174499.8 discloses a dual-degree-of-freedom hydraulic cylinder, and the Chinese patent application number with 201620762583.6 discloses a dual-degree-of-freedom pneumatic cylinder. The above-mentioned patent is used to upgrade the traditional car washing machine. The roller brush can be double-free. The cleaning effect is good when the car is washed by a high degree, but the result described in the above patent has a compli...

AI Technical Summary

Problems solved by technology

[0002] Traditional drum cleaning equipment rotates with a single degree of freedom, such as the roller brushes for road guardrail cleaning vehicles, rail transit vehicles and car cleaning, which cannot effectively remove pollutants on the surface of objects, and usually require secondary cleaning or reduce the cleaning speed. Guaranteed cleaning effect

[0003] The Chinese patent application number 201410174499.8 discloses a dual-degree-of-freedom hydraulic cylinder, and the Chinese patent application number 201620762583.6 discloses a dual-degree-of-freedom pneumatic cylinder. The above-mentioned patents are used to upgrade the technology of the traditional car washing machine. The roller brush can be double-freedom. high-speed car washing, the cleaning effect is good, but the results described in the above patents have complex structures and high processing costs

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