Synchronous movement realization based free-piston compressor

Abstract

The invention discloses a synchronous movement realization based free-piston compressor. A gas storage tank is connected with a cushion cylinder and a compressor cylinder, a power cylinder is arranged in the gas storage tank and arranged in the cushion cylinder and the compression cylinder, power pistons are arranged in the power cylinder and connected with piston rods, the piston rods are connected with a cushioning piston and a compressor piston, the cushioning piston is arranged in the cushion cylinder, and the compressor piston is arranged in the compressor cylinder. The compressor cylinder is provided with a first suction valve and a first exhaust valve, the power is provided with a gear, a gear shaft is arranged in the gear and fixed to the power cylinder, and racks are arranged on the gear, meshed with the gear and fixed to the piston rods correspondingly. The power cylinder is provided with suction holes and exhaust holes. The free-piston compressor can make moving piston sets completely equal in mass, inertia force during operation of a machine is fully balanced, bearing capacity is large, and accurate control in stroke is realized.

Description

technical field [0001] The invention relates to a compressor, in particular to a free piston compressor based on synchronous motion. Background technique [0002] Compressor, a driven fluid machine that lifts low-pressure gas into high-pressure gas. It is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle, thereby realizing Compression → condensation (heat release) → expansion → evaporation (heat absorption) refrigeration cycle. Compressors are divided into piston compressors, screw compressors, centrifugal compressors, etc. Piston compressors generally consist of a housing, motor, cylinder, piston, control equipment (starter and thermal protector) and cooling system. There are two cooling methods: oil coo...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the complicated structure of the above-mentioned existing compressor, low mechanical efficiency, unequal mass of the piston groups, unbalanced inertia force when the machine is running, need to configure a heavy foundation, and the bearing capacity is small, and the stroke control error is large To solve the problem, a free-piston compressor based on synchronous motion is designed. The mass of the moving piston groups of the free-piston compressor can be completely equal, and the inertial force of the machine is completely balanced when the machine is running. There is no need to configure a heavy foundation. Large bearing capacity, precise control of the stroke, solves the complex structure of the existing compressor, low mechanical efficiency, unequal mass of the piston group, unbalanced inertia force when the machine is running, needs to be equipped with a heavy foundation, and the bearing capacity is small, The problem of large stroke control error

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