Cylinder block moving type single-action low-noise energy-saving impact cylinder

Abstract

The existing double-acting impact cylinder has obvious technical defects such as extremely large impact noise, small impact force, low control accuracy of the critical pressure of the impact burst, and excessive energy consumption in the return stroke, which limits its application range to small-diameter cylinders and cannot be applied to On press machines that require large diameter cylinders. The single-acting, low-noise, energy-saving impact cylinder with cylinder body movement of the present invention adopts the technical scheme of the movement of the cylinder body components and the return return gas spring in the cylinder. Compared with the existing double-action impact cylinder, the impact noise is greatly reduced and the impact force is significantly improved. With outstanding advantages such as high control precision of impact burst critical pressure and low energy consumption in the return stroke, it can provide a new type of pneumatic actuator with relatively complete technical performance and high economic indicators for stamping machine tools and other social fields.

Description

Technical field [0001] The invention relates to the field of impact cylinders, and mainly relates to a single-acting low-noise energy-saving impact cylinder with cylinder body movement. Background technique [0002] The impact cylinder is a special cylinder that limits the pressure and accumulates energy in the accumulator chamber of the accumulator cylinder, so that the area of ​​the moving parts affected by the compressed gas is suddenly enlarged, and the formation of pressure shock waves in the cylinder working chamber is a special cylinder with technical characteristics. Under the same cylinder diameter and rated pressure, the peak impact force output by the impact cylinder can reach more than 20 times, or even more than 50 times, that of the conventional cylinder, and its working stroke energy consumption is only about twice that of the conventional cylinder. Therefore, for occasions that require a large instantaneous impact force, such as some stamping machine tools, the us...

AI Technical Summary

Problems solved by technology

Although someone has designed a so-called "quick discharge" impact cylinder, the structure of the quick discharge device is complex, the manufacturing cost is high, and the impact noise reduction is limited.

[0004] In addition to the extremely large impact noise, the impact cylinders of the existing structure also have the following technical defects: 1. Most of the existing impact cylinders are double-acting, and the energy consumption of the return stroke is close to half of the energy consumption of the working stroke, and the energy waste is extremely high. serious

2. The existing impact cylinder relies on the friction of the relevant moving parts to control the impact burst critical pressure of the compressed gas, and the controllability and accuracy are extremely poor.

The moving part is a piston-piston rod assembly, and it is difficult to greatly increase the mass

[0005] Due to the above-mentioned obvious technical defects of the existing impact cylinder, its application range is basically limited to small-diameter cylinders, and basically cannot be applied to stamping machine tools

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