Integrated multi-row high-pressure radial multi-plunger type variable pump

Abstract

The invention provides an integrated multi-row high-pressure radial multi-plunger type variable pump, and belongs to the technical field of hydraulic pump equipment. The integrated multi-row high-pressure radial multi-plunger type variable pump is composed of an eccentric shaft, a bearing, a pump body, plungers, plunger sleeves, a fastening block, a fastening screw, a one-way valve and a pressurerelease valve, the eccentric wheel on a transmission shaft performs eccentric motion to drive the plungers to perform reciprocating motion so as to extrude cavity spaces inside the plunger sleeves, high-pressure oil is extruded, and the flow direction of the oil and the oil pressure are controlled through the one-way valve and the pressure release valve. The plunger pump is novel in structure, a traditional radial plunger pump is large in radial size, and small in axial size, in the case of the integrated multi-row high-pressure radial multi-plunger type variable pump, the two rows of plungerassemblies are arranged on one pump body, so that the structural advantages of the radial plunger pump are effectively exerted, the output power is also increased, the effect that the two plunger pumps work together is achieved, moreover, compare with the structure of adopting the two plunger pumps, the variable pump has the advantages that the weight and the size are smaller, the production costis lower, the sealing surface of the variable pump is relatively reduced, and the leakage is reduced.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pump equipment, and relates to a hydraulic pump, in particular to an integrated multi-row high-pressure radial multi-piston variable pump. Background technique [0002] Piston pump is an important hydraulic device, which is divided into two types: axial piston pump and radial piston pump. Compared with other types of pumps, it is more pressure-resistant, shock-resistant and more efficient. Its working principle is , The plunger reciprocates in the cylinder body, and the space of the closed cavity composed of the plunger, cylinder body and flow distribution parts changes to realize oil absorption and oil discharge. [0003] Generally speaking, the plungers in a radial piston pump are radially arranged in a radial direction, and there is only one row in the axial direction. The radial dimension is large and the axial dimension is small. Just can make better use of the structural advantages of the...

AI Technical Summary

Problems solved by technology

But connecting with other pumps not only doubles the quality and volume, but also increases the sealing area of ​​the connection and increases the leakage.

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