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Vibration active control type axial plunger pump with magnetic bearings

An axial piston pump and active control technology, applied in the field of axial piston pumps, can solve problems such as cylinder overturning, affecting the reliability and life of axial piston pumps, reduce vibration and noise, and improve instability resistance Ability to improve stability

Active Publication Date: 2020-03-06
卓为驱动技术(南通)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under high-speed and high-pressure working conditions, the cylinder body posture of the traditional axial piston pump cannot be controlled, and instability such as cylinder body overturning is prone to occur, which affects the reliability and life of the axial piston pump

Method used

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  • Vibration active control type axial plunger pump with magnetic bearings
  • Vibration active control type axial plunger pump with magnetic bearings
  • Vibration active control type axial plunger pump with magnetic bearings

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Embodiment Construction

[0036] The technical solutions of the present invention will be further illustrated and described below through specific embodiments in conjunction with the accompanying drawings.

[0037] Such as figure 1 As shown, a vibration active control axial piston pump with magnetic bearing and its control method, including a housing 1, a stepped drive shaft 2, a swash plate 3, a plunger movement assembly 4, a cylinder body 5, a radial Magnetically controlled outer ring 6, first and second radial permanent magnetic bearings 7, and axially positioned magnetically controlled bearings 8. The radial magnetic control outer ring 6 is installed concentrically at the center of the cylinder body, and is connected with the housing 1 through a bolt assembly; They are connected by bolt components; the first and second radial permanent magnetic bearings 7 are installed on the left and right sides of the stepped drive shaft 2 .

[0038] The stepped drive shaft 2 passes through the swash plate 3, a...

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Abstract

The invention discloses a vibration active control type axial plunger pump with magnetic bearings. The vibration active control type axial plunger pump with the magnetic bearing comprises a shell, a stepped driving shaft, a swash plate, a plunger moving assembly, a cylinder body, a radial cylinder body magnetic control outer ring, a first radial permanent magnet bearing, a second radial permanentmagnet bearing and an axial positioning magnetic control bearing, wherein the radial cylinder body magnetic control outer ring acquires a vibration signal in real time through a displacement sensor, the radial cylinder body magnetic control outer ring is adjusted according to the vibration, the first radial permanent magnet bearing and the second radial permanent magnet bearing realize a suspension state of the stepped driving shaft through the principle of the same magnetic repulsion, and the axial positioning magnetic control bearing regulates and controls electromagnetic force by controlling the magnitude of current so as to ensure the axial positioning of the driving shaft. According to the vibration active control type axial plunger pump with the magnetic bearings and the control method thereof, the vibration of the cylinder body is monitored and controlled in real time while the driving shaft is suspended, friction among the bearings and the driving shaft is reduced, the dynamicstability of the cylinder body is improved, and the stability and reliability of the axial plunger pump are improved.

Description

technical field [0001] The invention belongs to the technical field of axial plunger pumps, in particular to an active vibration control axial plunger pump with magnetic bearings. Background technique [0002] Axial piston pumps have the advantages of small size, large power-to-weight ratio, and various variable modes, and have been widely used in construction machinery, ocean engineering, aerospace and other fields. As one of the core components of the axial piston pump, the rotor system is inevitably eccentric and unbalanced due to factors such as structural constraints, processing effects, and external loads. Under high-speed and high-pressure working conditions, the cylinder pose of the traditional axial piston pump cannot be controlled, and instability such as cylinder overturning is prone to occur, which affects the reliability and life of the axial piston pump. [0003] The present invention proposes an active vibration control axial piston pump with magnetic bearing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B1/16F16C32/04
CPCF04B1/16F16C32/0425F16C32/0476F16C2360/42
Inventor 叶绍干施嘉佳侯亮卜祥建
Owner 卓为驱动技术(南通)有限公司
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