Piston type double-acting multi-cylinder gas pumping apparatus of air compressor

Abstract

The invention belongs to the technical field of machinery, which relates to air compression technology, in particular to a piston type double action multi-cylinder pumping air device. The pumping air device comprises a plurality of double action cylinder bodies consisting of pistons, piston rods and cylinder bodies; the cylinder bodies are hinged on an eccentric position of a driven gear; each piston is positioned in the cylinder body and is connected with one end of each piston rod into a whole; and the other end of the piston rod extends out of the cylinder body. The device also comprises abase and a main shaft connected with the base; the outer end of the base is fixed with a gas transmission pipe shaft; the piston rods are hinged on the gas transmission pipe shaft at the outer end ofthe base; the base is also provided with a driving gear and a driven gear; one end of the main shaft passes through the base and is fixedly connected with the driving gear; the other end of the main shaft is connected with a power mechanism; and the driven gear is connected with the base and is engaged with the driving gear. The device can be assembled in single layer or multiple layers, overcomes the pulsating phenomenon of single cylinder inflation, and has high working efficiency.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to an air compression technology, in particular to a piston-type double-acting multi-cylinder pumping device for an air compressor. Background technique [0002] Air compressors usually use an air pump to pump air into the air storage tank. The early piston air pumps were all powered to drive the piston rod to push the piston to reciprocate. A check valve is installed at one end of the cylinder, which can only work in one direction and one-way suction. Air, one-way air supply, the power is doing useless work during the return stroke of the piston, which is single-acting, and the work efficiency and energy utilization rate are low, and the amount of air inflation is small. In order to improve the inflation efficiency, the applicant has devised [Application No.: CN200820120698.0] a single-pump piston-type double-acting pumping device for an air compressor. At the same time, a 0.75-kil...

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Problems solved by technology

In order to improve the inflation efficiency, the applicant has devised [Application No.: CN200820120698.0] a single-pump piston-type double-acting pumping device for an air compressor. At the same time, a 0.75-kilowatt motor is equivalent to a single-acting 1.1-kilowatt acting work. The so-called double action means that the cylinder body is inflated back and forth. Theoretically speaking, the amount of air in one cycle is nearly twice that of a common piston air compressor, but the applicant found that the amount of air inflated in a single cylinder is still very large. There is little room for improvement, and there is a pulsation phenomenon in the charging process of a single cylinder. In addition, in a multi-cylinder structure, a crankshaft is usually used to drive multiple pistons, but the manufacturing process of the crankshaft is complicated, heavy, and occupies a relatively high cost ratio. , so a double-acting multi-cylinder pumping device was designed on the basis of the original

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