Single-acting cylinder with in-cylinder return reset gas spring

Abstract

The return energy consumption of the existing double-acting cylinder is very close to the energy consumption of the working stroke, and the energy waste is extremely serious; while the existing single-acting cylinder that uses the spring to return and reset, because the return spring occupies a large axial space, the longitudinal direction of the cylinder body is reduced. If the size is too large, it will not only cause material waste and bulky structure, but also greatly restrict the stroke. The present invention proposes a single-acting cylinder that utilizes the gas content in the cylinder to form a return return gas spring, and replaces the existing double-acting cylinder with remarkable energy-saving effect; it replaces the existing single-acting cylinder and has Small size, light weight, unrestricted travel and other advantages. The invention has a single-acting cylinder with an in-cylinder return return gas spring, and can provide a new type of pneumatic actuator with energy saving, environmental protection, high production efficiency and high degree of generalization for related fields of society.

Description

technical field [0001] The invention relates to the field of cylinders, and mainly relates to a single-acting cylinder that utilizes the gas volume in the cylinder to form a gas spring for returning and returning. Background technique [0002] At present, the number of double-acting cylinders used in various fields of society far exceeds that of single-acting cylinders. However, there is a very important economic indicator problem that has been neglected by most people for a long time: the energy wasted in the return stroke of the double-acting cylinder is too serious! [0003] The reason why the return trip of existing double-acting cylinders wastes energy extremely is that the ratio of piston rod diameter d to piston diameter D is too small, and the d / D ratio of large and medium-sized cylinders is generally about 20%. This causes the maximum return force of the cylinder to be very close to the maximum force of its working stroke (assuming the rated pressure of the pneumat...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the shortcomings of the existing spring potential energy reset single-acting cylinder, which has a bulky overall structure and the existing double-acting cylinder’s serious energy waste in the return stroke, and innovatively design a single-acting cylinder whose overall size and weight are equivalent to those of the double-acting cylinder , to provide a new type of pneumatic actuator with energy saving, environmental protection and high degree of generalization for the relevant fields of the society

Images