Reciprocating novel pump with double-screw transmission structure device

Abstract

The invention discloses a novel reciprocating pump with a double-screw transmission structure device. The novel reciprocating pump comprises a power end and a fluid end, the power end is connected with the fluid end, the power end is composed of a crankcase body, a crankshaft assembly, a connecting rod sliding block assembly and a small gear shaft assembly, one end of the pinion shaft is connected with a driving motor and the other end is connected with the crankshaft assembly, the crankshaft assembly is connected with the connecting rod sliding block assembly, the crankshaft assembly, the connecting rod sliding block assembly and the small gear shaft assembly are embedded in the crankcase body, the fluid end device comprises a plunger, a high-pressure steel sleeve, a valve seat, a liquid suction valve element and a liquid drainage valve element, one end of the valve seat makes contact with the valve sleeve plane, the other end makes contact with a pump head body, and the liquid suction valve element is arranged in the valve seat in the same direction of reciprocating motion of the plunger. According to the novel reciprocating pump, by designing a novel reciprocating pump structure with a double-screw transmission structure device, the technical problems of stress concentration, pump head cracking and the like are solved, and the technical effects of low noise, labor saving, maintenance time reduction, small size, small transmission range, low cost and the like are achieved.

Description

technical field [0001] The invention belongs to the design field of reciprocating pumps under the extreme environment of coal mines, and in particular relates to a reciprocating pump of a novel double-screw transmission structure device. Background technique [0002] The hydraulic system of the reciprocating pump in the fully mechanized mining face is an important equipment in the underground production of coal mines. It is the "heart" of the hydraulic support system and the liquid supply system. To ensure that the roof of the working face supports the coal seam and advances normally; the liquid supply system provides power for the hydraulic support system, and its main core is a reciprocating pump. [0003] Coal mine underground compared with previous generations. Higher support force, larger strut diameter and faster forward speed are required. Achieving these supporting forces and speeds depends on the performance of the reciprocating pump. With the development of "int...

AI Technical Summary

Problems solved by technology

However, the single-stage reduction gear device is still used, and the fluid end of the emulsion pump still uses a split pump head, which is difficult to disassemble.

[0008] At present, most of the reciprocating pumps commonly used in the market or underground use a single-stage reduction gear device, which has large noise, low utilization rate, large overall volume and split pump head, which is difficult to disassemble and even Some are no longer suitable for use in high-pressure and high-flow fields

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