Electrically-controlled multifunctional combined proportional variable axial plunger pump

Abstract

The invention discloses an electrically-controlled multifunctional combined proportional variable axial plunger pump which comprises a plunger pump main body and a variable mechanism, wherein the variable mechanism is arranged on one side of the plunger pump main body. The plunger pump main body comprises a pump body and a variable disk which is arranged inside the pump body, the variable mechanism comprises a variable plunger, a first oil cavity and a second oil cavity, the variable plunger is connected with the variable disk, the first oil cavity and the second oil cavity are formed at the two ends of variable plunger, and a hydraulic control system is further arranged on the outer side of the pump body. The hydraulic control system comprises a controller, a servo proportional valve, a transitional plate, a position detection mechanism and a pressure detection mechanism, wherein the servo proportional valve is connected with the controller and is used for controlling the flow quantity of oil, the position detection mechanism is used for monitoring the position of a plunger, the pressure detection mechanism is used for monitoring the pressure in the oil outlet of the plunger pump main body, the transitional plate is mounted on the outer side of the pump body, the transitional plate is provided with two oil outlets, the two oil outlets are communicated with the first oil cavity and the second oil cavity respectively, and the position detection mechanism and the pressure detection mechanism are respectively connected with the controller. The electrically-controlled multifunctional combined proportional variable axial plunger pump has the advantages that the flow quantity, the pressure and the power of a hydraulic pump can be controlled simultaneously, and energy consumption is low.

Description

technical field [0001] The invention relates to an axial plunger pump, in particular to an electronically controlled multifunctional composite proportional variable axial plunger pump. Background technique [0002] In order to meet the higher requirements of general engineering systems for transmission and control characteristics, electronic proportional control technology has gradually developed into the most vigorous branch in the field of fluid transmission and control since the 1960s and 1970s. Today, the electro-hydraulic proportional control technology has become an indispensable means of industrial machinery, engineering construction machinery and cutting-edge national defense products, and has received special attention from the relevant industrial and technical circles. The hydraulic pump is a power component that provides a certain flow and pressure medium for the hydraulic system, and it is the heart of the entire hydraulic system. Its performance directly affect...

AI Technical Summary

Problems solved by technology

The one-way hydraulic variable axial piston pump can only control the flow rate. In order to ensure the pressure balance of the hydraulic system during work, the one-way hydraulic variable axial piston pump needs to be equipped with hydraulic valves with other functions to achieve The host is working normally

At the same time, during the working process of the plunger pump, the hydraulic valve is connected with the hydraulic system to control the pressure balance of the hydraulic system, so a large amount of working energy will pass through the hydraulic valve, and the energy consumption is high

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