Radial plunger hydraulic pump of double-acting type outer rotor

A technology of outer rotor and radial column, which is applied to the components of pumping devices for elastic fluids, variable displacement pump components, pumps, etc., and can solve the problems of reducing pump volumetric efficiency, unfavorable pump volumetric efficiency, and easy generation of air bubbles, etc. problem, to achieve the effect of compact structure, compact structure design and long life

Inactive Publication Date: 2013-06-26
XI AN JIAOTONG UNIV
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the traditional radial plunger hydraulic pump is that the plunger cylinder rotates together with the drive shaft, the moment of inertia is large, and the oil is prone to air bubbles when the cylinder rotates at high speed, which is not conducive to improving the volumetric effici...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radial plunger hydraulic pump of double-acting type outer rotor
  • Radial plunger hydraulic pump of double-acting type outer rotor
  • Radial plunger hydraulic pump of double-acting type outer rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] refer to figure 1 and figure 2 , a radial plunger hydraulic pump with a double-acting outer rotor, including a rotor housing 26, the rotor housing 26 is installed on the transmission shaft 17 of the motor 29 and pressed with the transmission shaft gland 16, and the rotor end cover 2 is installed on the On the rotor housing 26, the inner side of the rotor housing 26 is respectively provided with a first spool driving curved surface 19 and the first cylindrical surface 21, and the inner side of the rotor end cover 2 is respectively provided with a second spool driving curved surface 8 and The second cylindrical surface 4, the top center of the rotor housing 26 is provided with a shoulder 27, the first rolling bearing 15 is installed in the inner hole of the driving surface 19 of the first slide valve spool, and the second rolling bearing 14 is installed in the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a radial plunger hydraulic pump of a double-acting type outer rotor. The radial plunger hydraulic pump of the double-acting type outer rotor utilizes an outer rotor inner stator structure. A pair of oil absorption radial cams and an oil pressing radial cam are respectively installed in the rotor. Straight reciprocating motion of plungers along the radial direction is achieved through driving of the cams, and pressure oil liquid is obtained. The radial cams can transfer power to the plungers in a low friction rolling mode. Oil distribution of each plunger cylinder utilizes a mode that a sliding valve is alternately communicated with an oil absorption port and an oil draining port. The straight motion of each valve core of the sliding valve depends on the driving of axial cams which are symmetrically arranged on two axial end panels in the rotor. The axial cams can transfer the power to the valve core of the sliding valve in a low friction rolling mode so that the communication of plunger cavities and an oil inlet hole or an oil outlet hole is switched. An oil distributing shaft and a cylinder body do not rotate, sealing is reliable, and leakage quantity is low. The outer rotor inner stator radial plunger hydraulic pump has the advantages of being compact in structure, high in volume efficiency, low in abrasion and symmetrical in stress.

Description

technical field [0001] The invention belongs to the technical field of radial plunger hydraulic pumps, in particular to a radial plunger hydraulic pump with a double-acting outer rotor. Background technique [0002] The hydraulic pump is the core component in the field of hydraulic technology, which is used to provide high-pressure oil with stable flow and pressure for the system. The performance of the hydraulic pump plays a vital role in the performance of the hydraulic system. Radial piston hydraulic pumps are widely used in metallurgy, mining, forging and other mechanical equipment due to their advantages of high volumetric efficiency, long life and stable operation. [0003] The traditional radial plunger hydraulic pump adopts the internal rotor structure. When the plunger hydraulic pump is working, the plunger and the cylinder used to generate hydraulic pressure rotate, relying on the centrifugal force and the reaction force of the inner wall of the pump to make the p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F04B1/047F04B53/00F04B53/18
Inventor 赵升吨郭桐范淑琴张晨阳
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap