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Electromagnetic control variable plunger pump

A variable plunger, electromagnetic control technology, applied in the field of hydraulic parts, can solve the problems affecting the service life of the variable pump, the components are easily damaged by friction, and the requirements of high manufacturing accuracy, and achieve low oil quality and cleanliness requirements, reliable work, and machining accuracy. less demanding effects

Inactive Publication Date: 2010-07-14
丹东市辽东液压件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Now there is a variable displacement plunger pump, which is a disc flow distribution type, which is composed of a group of circumferentially distributed plunger cylinders and an adjustable sliding plate, and the flow is distributed by the distribution plate. The working stroke of the plunger rod is variable, its structure is complex, the manufacturing precision is high, and the production cost is high. Each plunger rod works with sliding friction with the sliding plate under high-speed conditions, and the components are easy to be damaged by friction, and the oil quality is high. , the quality and cleanliness of the oil directly and seriously affect the service life of the variable displacement pump

Method used

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  • Electromagnetic control variable plunger pump
  • Electromagnetic control variable plunger pump
  • Electromagnetic control variable plunger pump

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Embodiment Construction

[0012] The present invention includes pump casing 1, valve plate 2, valve cover 3, crankshaft 4, crankshaft connecting rod 5, several plunger cylinders 6, several electromagnet devices 7 corresponding to each plunger cylinder 6, valve plate 2 and pump casing 1 Sealed and fixed connection, the valve cover 3 is sealed and fixed with the valve plate 2, the plunger cylinders 6 are arranged and fixedly installed on the valve plate 2 in the pump casing 1, and the single or multi-crank crankshaft 4 is installed in the pump casing 1 through the bearing device , each eccentric shaft corresponding to the multi-crank crankshaft 4 in the pump casing 1 is hingedly connected with the pump casing 1 to set a swing rod 8, the crankshaft connecting rod 5 is hingedly connected to the swing rod 8, and the plunger cylinder 6 is arranged and distributed corresponding to the swing rod 8, each The plunger rod 61 of the plunger cylinder 6 is hingedly connected with the swing rod 8 through its connectin...

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Abstract

The invention relates to an electromagnetic control variable plunger pump which comprises a pump shell (1), a valve plate (2), a valve cover (3), a crankshaft (4), a crankshaft connecting rod (5), a swinging rod (8), a plurality of plunger cylinders (6) and an electromagnet device (7), wherein the crankshaft connecting rod (5) is articulated with the swinging rod (8); the plunger cylinders (6) are distributed in correspondence to the swinging rod (8); plunger rods (61) of all plunger cylinders (6) are articulated with the swinging rod (8) by a connecting rod (9); an oil inlet one-way valve (a) and an oil outlet one-way valve (b) are arranged on the valve plate (2) and correspond to each plunger cylinder (6); the oil inlet one-way valve (a) on the valve cover (3), which corresponds to each plunger cylinder (6) is provided with the valve electromagnet device (7) for controlling the opening of the oil inlet one-way valve (a); the unloading of the oil inlet one-way valve of one or a plurality of plunger cylinders (6) is selected and controlled by the electromagnet device (7), and the output flow change is realized. The invention has simple structure, convenient manufacture, long service life, reliable working, high working pressure and large flow.

Description

technical field [0001] The invention relates to a hydraulic component, which is a variable displacement plunger pump. Background technique [0002] Variable displacement plunger pumps have been widely used in hydraulic devices, and their basic principle is to change the output flow by changing the working stroke of the plunger. Now there is a variable displacement plunger pump, which is a disc flow distribution type, which is composed of a group of circumferentially distributed plunger cylinders and an adjustable sliding plate. The working stroke of the plunger rod is variable, its structure is complex, the manufacturing precision is high, and the production cost is high. Each plunger rod works with sliding friction with the sliding plate under high-speed conditions, and the components are easy to be damaged by friction, and the oil quality is high. , The quality and cleanliness of the oil directly and seriously affect the service life of the variable displacement pump. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
Inventor 闫学富闫铁斌
Owner 丹东市辽东液压件厂
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