Digital pulse variable axial plunger pump

Abstract

The invention discloses a digital pulse variable axial plunger pump which comprises a pump body, an oil distribution disk, a cylinder body, a plunger arranged in the cylinder body, a piston shoe arranged on the end part of the plunger, a set plate, a pump shell, a transmission shaft and a variable control device, wherein the cylinder body is arranged on the end part of the transmission shaft, and the end part of the transmission shaft is fixed on a central line of the set plate through a steel ball; and the variable control device comprises a variable head, a thrust plate, a variable shaft and an adjusting screw rod. The axial plunger pump is characterized by also comprising a transition body, wherein one end of the transition body is fixedly connected with a flange plate, while the other end is connected with a linear stepping motor; a spindle of the linear stepping motor is fixedly connected with one end of a connecting piece, while the other end of the connecting piece is connected with the adjusting screw rod; and the linear stepping motor is connected with an electronic inductor. The axial plunger pump has the advantages of high control sensitivity, high frequency response, no lag, good stability and high working efficiency.

Description

technical field [0001] The invention relates to a variable axial plunger pump, in particular to a digital pulse variable axial plunger pump. Background technique [0002] In axial piston pumps, the plunger reciprocates under the action of the return plate to achieve oil suction and oil discharge. The variable axial piston pump changes the inclination of the return plate by changing the inclination of the variable head, and then controls the variable of the piston pump. The existing variable displacement plunger pump is to adjust the handle arranged on the flange to drive the adjustment screw to rotate to change the inclination angle of the return plate, change the stroke length of the plunger in the pump cylinder, and then change the flow rate of the pump. This adjustment method has low sensitivity and poor stability, which seriously affects the working efficiency of the plunger pump. Therefore, a new technical solution should be provided to solve the above problems. Cont...

AI Technical Summary

Problems solved by technology

The existing variable displacement plunger pump is to adjust the handle arranged on the flange to drive the adjustment screw to rotate to change the inclination angle of the return plate, change the stroke length of the plunger in the pump cylinder, and then change the flow rate of the pump. This adjustment method has low sensitivity and poor stability, which seriously affects the working efficiency of the plunger pump. Therefore, a new technical solution should be provided to solve the above problems

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