Novel oilless vertical vacuum pump

Abstract

The invention discloses a novel oilless vertical vacuum pump which comprises a base, a machine body, an air cylinder, an air cylinder cover and a flywheel, wherein the air cylinder is arranged above the machine body; a piston and a piston rod are arranged in the air cylinder; an upper packing chamber is formed between an air cylinder neck and the piston rod; an upper packing pressure cover is arranged under the upper packing chamber; a piston ring, a tension ring and a guide ring are arranged between the air cylinder and the piston; the piston rod penetrates through the air cylinder and the air cylinder neck downwards in sequence, and the lower end of the piston rod is in cap connection with a connecting rod through the piston rod; the bottom of the connecting rod is inserted into a cross head; the cross head is connected with an upper end hole of the connecting rod through a cross head pin; a lower end hole of the connecting rod is in circumferential sliding connection with crankshafts on the two sides; the crankshaft on one side is connected with the flywheel through a rotating shaft, and the crankshaft on the other side is connected with a machine oil pump through a machine oil pump joint in the rotating shaft. The novel oilless vertical vacuum pump has the advantages that the novel vertical pump is free from oil stain, is reliable to lubricate, is more stable to run and is convenient to filter, the long-term normal operation of an air valve and the piston is ensured, the service life is long, and the maintenance is convenient.

Description

technical field [0001] The invention relates to a vacuum pump, in particular to a novel oil-free vertical vacuum pump. Background technique [0002] The WLW-50B oil-free vacuum pump currently produced, the original design of the oil-free pump installs the main vulnerable parts such as air valves in the cylinder neck and cylinder head, because vacuum pumps are often used in chemical industry, and chemical industry has certain corrosion When the vacuum pump is being maintained, the air valve is difficult to remove for maintenance or replacement. The cylinder head must be completely removed, and the air valve, valve cover and other components must be broken to replace the new air valve, which increases manpower and material resources and greatly increases the cost. Maintenance costs. Therefore, it is necessary to provide a new technical solution to solve the above problems. Contents of the invention [0003] The purpose of the present invention is to provide a novel oil-fre...

AI Technical Summary

Problems solved by technology

[0002] The WLW-50B oil-free vacuum pump currently produced, the original design of the oil-free pump installs the main vulnerable parts such as air valves in the cylinder neck and cylinder head, because vacuum pumps are often used in chemical industry, and chemical industry has certain corrosion When the vacuum pump is being maintained, the air valve is difficult to remove for maintenance or replacement. The cylinder head must be completely removed, and the air valve, valve cover and other components must be broken to replace the new air valve, which increases manpower and material resources and greatly increases the cost. Maintenance costs

Images