Cylindrical cam-driven multi-cylinder bi-directional plunger pump

A technology of cylindrical cam and plunger pump, applied in the field of plunger pump, can solve the problems of insufficient utilization of cam drive mechanism, low working efficiency, insufficient reliability, etc., and achieves low bending strength requirements of push rod, compact structure, and improved work efficiency. The effect of efficiency

Active Publication Date: 2014-09-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some existing designs have the following deficiencies: 1. There is a return mechanism in the contact design between the cam and the piston, which makes the structure complicated and not reliable enough; 2. The cam driving mechanism drives a reciprocating pump, and the utilization of the cam driving mechanism is insufficient , work efficiency is not high

Method used

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  • Cylindrical cam-driven multi-cylinder bi-directional plunger pump
  • Cylindrical cam-driven multi-cylinder bi-directional plunger pump
  • Cylindrical cam-driven multi-cylinder bi-directional plunger pump

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Embodiment Construction

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

[0022] Referring to the accompanying drawings, a multi-cylinder bidirectional plunger pump driven by a cylindrical cam includes a cylindrical cam 1, a roller 2, a plunger push rod 3, a cylinder 4 and a small cylinder 5, and the cylindrical cam 1 is a cylindrical structure , the center of the top surface and the bottom surface is provided with a cylindrical shaft 10, and the side is provided with a groove 11, the cylindrical shaft 10 is connected with the hole at the center of the cylinder body 4 through a bearing, and the groove 11 is used to surround the cylindrical cam 1 A round curved groove, the roller 2 is a cylindrical roller, the roller 2 is installed in the groove 11 of the cylindrical cam 1, and can slide in the groove 11, and the cylindrical cam 1 rotates to drive the roller The roller 2 slides in the groove 11, the roller 2 is provided with a conne...

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Abstract

A cylindrical cam-driven multi-cylinder bi-directional plunger pump comprises a cylindrical cam, a roller, plunger push rods, cylinder bodies and small cylinder bodies, wherein the cylindrical cam is in a cylindrical shape, the top surface and the bottom surface of the cylindrical cam are respectively provided with a cylindrical shaft, the side face of the cylindrical cam is provided with a groove, the roller is arranged in the groove, can slide in the groove and is fixedly connected with the plunger push rods through connecting devices, the two ends of each plunger push rod are provided with plungers which are arranged in the corresponding small cylinder bodies, the small cylinder bodies are positioned in the cylinder bodies and are provided with oil inlets and oil outlets, the cylinder bodies are provided with a main oil inlet and a main oil outlet, and the main oil inlet is communicated with the oil inlets. The cylindrical cam-driven multi-cylinder bi-directional plunger pump provided by the invention can meet the requirements of the plunger pump and reduce the flow pulsation of a reciprocating pump and improve the working efficiency, and has the characteristics of simple and reliable structure, low requirement on the bending resistance of the push rod, larger output and small flow pulsation.

Description

technical field [0001] The invention relates to a plunger pump, in particular to a cylindrical cam-driven multi-cylinder bidirectional plunger pump. Background technique [0002] At present, plunger pumps have attracted widespread attention due to their high efficiency and widespread application. Piston pumps require high output pressure, large flow, convenient manufacture and maintenance, and small flow and pressure fluctuations. Generally, multi-piston oil pumps driven by cams are used to achieve this. However, some existing designs have the following deficiencies: 1. There is a return mechanism in the contact design between the cam and the piston, which makes the structure complicated and not reliable enough; 2. The cam driving mechanism drives a reciprocating pump, and the utilization of the cam driving mechanism is insufficient , The work efficiency is not high. 3. The cam drive mechanism drives a reciprocating pump in one direction, and its bending strength is require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B1/16F04B23/06
Inventor 曹巨江任升王文将刘言松
Owner SHAANXI UNIV OF SCI & TECH
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