High-efficiency positive displacement pump

Abstract

The invention provides a high-efficiency positive displacement pump. The high-efficiency positive displacement pump comprises a case, a motor, a worm, a worm gear, an eccentric shaft, a shaft and a pump head; the motor is connected with the worm rod by use of a worm sleeve; the lower end of the worm is positioned and connected with the case by use of a bearing; the worm drives the worm gear to rotate; the worm drives the eccentric shaft to rotate; the eccentric shaft drives the shaft to reciprocate in the pump head; the pump head comprises a left pump head and a right pump head, the two of which are arranged oppositely and connected by use of a sliding sleeve. Compared with the prior art, the high-efficiency positive displacement pump has the beneficial effects that the dual-pump head structure is adopted so that a liquid can be suctioned and discharged twice in one working period of the connecting rod, and the working efficiency is doubled in contrast with the prior art, the impact problem of engagement is overcome, the impact of toothed surfaces is avoided and no impact noise is generated, and therefore, the service life of the pump can be prolonged to a large extent.

Description

technical field [0001] The present invention relates to pumps, in particular to a high efficiency positive displacement pump. Background technique [0002] Positive displacement pump is a kind of working parts such as piston, plunger, diaphragm, gear or vane to reciprocate or rotate in the pump body, so that the volume of several working chambers in the pump body changes periodically, and alternately sucks and discharges. A pump for liquids. At present, positive displacement pumps on the market can be roughly divided into two categories: reciprocating pumps and rotary pumps. [0003] Most of the existing reciprocating diaphragm pumps have the following defects. When the connecting rod is displaced in the horizontal direction under the action of the eccentric shaft, pure linear motion in the horizontal direction cannot be produced because the connecting rod is in a flexible connection state with the diaphragm and the oil seal. Since it is impossible to produce pure linear m...

AI Technical Summary

Problems solved by technology

With the prolongation of the working time of the pump, the wear of the tooth surface will intensify, the meshing clearance of the teeth will become larger and larger, the impact will be intensified, the noise will increase, and the service life will decrease sharply

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