Dual-regulating low-pulse diaphragm metering pump with two pump heads

Abstract

The invention discloses a dual-regulating low-pulse diaphragm metering pump with two pump heads. The dual-regulating low-pulse diaphragm metering pump comprises a motor, a box body and diaphragm type pump heads, wherein a one-rod two-gear type worm-rod worm-gear transmission mechanism and two sets of regulating mechanisms are arranged inside the box body; the worm-rod worm-gear transmission mechanism comprises a worm rod and two worm gears; the worm rod is connected with the motor through a shaft coupler; the worm rod is positioned on the bilateral symmetric shaft of the box body; the left side and the right side of the worm rod are respectively provided with one worm gear which is meshed with the worm rod; the two worm gears are respectively connected with one set of regulating mechanism; and each set of regulating mechanism is connected with a set of the diaphragm type pump head. The working principle of the dual-regulating low-pulse diaphragm metering pump is as follows: the worm rod in the one-rod two-gear type worm-rod worm-gear transmission mechanism simultaneously drives the worm gears at two sides to perform a rotary motion, so that diaphragm components perform a reciprocating breathing motion through the regulating mechanisms according to the rotary motion of the worm gears, therefore the pump outflow amount of the pump is regulated. Each set of regulating mechanism can carry out regulation independently, so that the use requirement of large-flow low-pulse and two fluid medium transportation occasions can be met.

Description

technical field [0001] The invention relates to a two-pump-head double-adjustment low-pulsation diaphragm metering pump. Background technique [0002] Various metering pumps currently on the market have the disadvantages of intermittent flow, pulsation, and large energy consumption. In response to this situation, a small number of double pump head metering pumps have appeared, mainly dual pump head metering pumps using cam drive, or double pump head metering pumps using crankshaft as the transmission mechanism to meet the requirements of multi-media delivery. However, these pumps have the following disadvantages: 1. The double pump heads cannot be adjusted independently, and the pulsation is large; 2. The plunger type fluid end is easy to leak; The volume increases, thereby increasing the processing difficulty, manufacturing cost, assembly area and assembly complexity of the complete set of equipment. Contents of the invention [0003] The problem to be solved by the pre...

AI Technical Summary

Problems solved by technology

However, these pumps have the following disadvantages: 1. The double pump heads cannot be adjusted independently, and the pulsation is large; 2. The plunger type fluid end is easy to leak; The volume increases, which increases the processing difficulty, manufacturing cost, assembly area and assembly complexity of the complete set of equipment

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