An end-type flow distribution device for a direct-acting cylindrical guide groove cam mechanism for a reciprocating plunger pump
A technology of cam mechanism and plunger pump, which is applied to parts of pumping devices for elastic fluids, machines/engines, liquid fuel engines, etc., and can solve the problems of low volumetric efficiency, large volume, and high cost
Inactive Publication Date: 2016-01-20
QINGDAO UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to overcome the shortcomings of low volume efficiency, large pressure loss, large volume and high cost of the traditional flow distribution system for reciprocating plunger pumps in the prior art, and seek a low cost, compact structure, small pressure loss and high volume efficiency. , The reciprocating plunger pump with stable performance uses a direct-acting cylindrical guide groove cam mechanism end-type flow distribution device to realize the conversion and output of mechanical energy to hydraulic energy
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0013] The main structure of this embodiment includes a pump body 1, a fluid inlet 2, a compression spring 3, a driven pin 4, a sliding sleeve 5, a plunger 6, a valve core 7, a pump chamber 8 and a fluid outlet 9, wherein the valve core 7 is controlled by a flow distribution Hole 10, cam groove 11, spool handle 12 and spool end 13; the pump body 1 is mainly used for supporting and connecting, the plunger 6 is fixedly installed in the cavity of the pump body 1, wear-resistant or self-lubricating material The finished sliding sleeve 5 is embedded in the pump body 1 to guide the plunger 6, and the plunger 6 moves axially reciprocatingly in the sliding sleeve 5 under the external force; the plunger 6 is a hollow cylindrical structure, Above the circular inner chamber of the plunger 6 is an air hole communicating with the outside atmosphere. When the plunger 6 goes up, the outer atmosphere enters the circular inner chamber through the air hole, and when the plunger 6 descends, the g...
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
Login to View More Abstract
The invention belongs to the technical field of hydraulic power transfer and output equipment, and relates to an end type flow distribution device of a direct-actuated cylindrical guide groove cam mechanism for a reciprocating plunger pump. A plunger is fixedly mounted in the cavity of a pump body; a slide bushing is mounted in the pump body; air holes are formed in the circular cavity of the plunger; the hole wall of the circular cavity of the plunger is provided with a radial eyelet with a retainer spring and a driven pin; a valve core is in clearance fit with the cavity wall in the cavity of the pump body; the handle part of the valve core is in clearance fit with the holes in the plunger; the pump cavity is formed among the upper surface of the end of the valve core, the lower end surface of the plunger and the internal circular surface of the slide bushing; the end of the valve core is provided with a flow distribution hole; a liquid inlet and a liquid outlet on the pump body are under the valve core; the circumferential surface of the end of the valve core is in clearance fit with the pump body; the direct-actuated cylindrical guide groove cam mechanism is composed of the valve core, a cam groove on the external circular surface of the handle part of the valve core, the driven pin and the plunger. The end type flow distribution device has the advantages of compact structure, high volumetric efficiency, stable performance, low pressure loss, good energy-saving effect, low cost, wide application and broad industrialization prospect.
Description
Technical field: [0001] The invention belongs to the technical field of hydraulic power transmission and output equipment, and relates to an end-type flow distribution device of a straight-moving cylindrical guide groove cam mechanism for a reciprocating plunger pump. Background technique: [0002] The pump industry consumes about 20% of electric energy, and it is the second largest electromechanical industry after automobiles in the world. Among them, reciprocating plunger pumps are widely used in fluid engines, crude oil transportation, gas stations, pump stations, mobile machinery and stationary machinery . At present, the most serious problem of the reciprocating plunger pump is that the structure of the distribution system is loose and large, the efficiency is low, and the performance is unstable. The existing distribution structure has two types: disc distribution and valve distribution. On inclined-axis hydraulic motors or hydraulic pumps, disc-type flow distribution...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/12
Inventor 张洪信于作功郝英杰张铁柱尹怀仙马永志
Owner QINGDAO UNIV