Double-acting hydraulic ejecting type vacuumizing and compressing device of double cylinders

Abstract

The invention provides a double-acting hydraulic ejecting type vacuumizing and compressing device of double cylinder and belongs to the technical field of machinery. The double-acting hydraulic ejecting type vacuumizing and compressing device solves the problem that compressing capacity or vacuumizing capacity of an all-in-one machine of a piston type vacuum pump and a piston type air compressor cannot achieve the actual application requirements and comprises a hydraulic cylinder body and two cylinder bodies, wherein the cylinder bodies are respectively connected with two ends of the hydraulic cylinder body, a hydraulic cylinder piston is arranged in the hydraulic cylinder body, a double-extending rod with two ends respectively extending out of the hydraulic cylinder body and entering the cylinder bodies is fixed on the hydraulic cylinder piston, cylinder pistons fixed on corresponding end portions of the double-extending rod are respectively arranged in the two cylinder bodies, and an air inlet valve and an air outlet valve for communicating a cavity of the cylinder are respectively arranged on the end portions of the cylinder bodies on two sides of each cylinder piston. The double-acting hydraulic ejecting type vacuumizing and compressing device can integrate air compressing and vacuumizing, has three functions in one machine and can achieve the requirements for actual using.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a double-acting hydraulic injection type double-cylinder vacuuming and compression device. Background technique [0002] The machine that draws gas from the equipment to make the inside of the equipment vacuum is called a vacuum pump. Vacuum pumps can be roughly divided into reciprocating vacuum pumps, rotary vacuum pumps and jet vacuum pumps according to different movement modes. Among them, the reciprocating vacuum pump, also known as the piston vacuum pump, pumps air by periodically changing the working volume of the cylinder. The piston vacuum pump only works in the cylinder chamber on one side of the piston during the pumping process, while the cylinder chamber on the other side of the piston is in an idle state. It is a single-acting structure with low working efficiency. The working air pressure is not uniform, so that the seal on the piston is subjected to a large force ...

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Problems solved by technology

[0004] It can be seen from the above-mentioned general technology that although the piston vacuum pump and the piston air compressor use the same motion principle, there is no equipment that integrates the piston vacuum pump and the piston air compressor in the existing market. It is difficult to solve the following problems:

[0005] 1. The motor is used as the power, the motor is set on one side, and it is also transmitted through the transmission mechanism in the middle, so that the compression capacity or vacuuming capacity of the integrated piston vacuum pump and piston air compressor cannot meet the requirements of practical applications. Not a substitute for multi-stage compression or vacuuming

[0006] 2. Due to the relatively large force on the piston due to air compression and / or vacuuming, the sealing ring on the piston has to bear a large pressure, resulting in poor sealing effect, so that the compression capacity or vacuuming capacity of the all-in-one machine cannot reach Practical application requirements

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