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A crosshead and crosshead sliding sleeve assembly for a diaphragm pump

A technology of crosshead sliding sleeve and crosshead, which is applied to pump components, variable displacement pump components, components of pumping devices for elastic fluid, etc., can solve the problems of short service life and affecting the normal operation of diaphragm pumps, etc. To achieve the effect of increasing service life, reducing maintenance and downtime, and reducing costs

Active Publication Date: 2021-12-21
ACADEMY OF AEROSPACE PROPULSION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing plunger packing has a short service life and thus affects the normal operation of the diaphragm pump, the present invention provides a crosshead and crosshead sliding sleeve assembly for a diaphragm pump

Method used

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  • A crosshead and crosshead sliding sleeve assembly for a diaphragm pump
  • A crosshead and crosshead sliding sleeve assembly for a diaphragm pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A crosshead and crosshead sliding sleeve assembly for a diaphragm pump, including a crosshead sliding sleeve and a crosshead arranged in the crosshead sliding sleeve. The crosshead can move reciprocatingly and linearly relative to the crosshead sliding sleeve. The material of the crosshead is cast steel , the outer surface of which is sprayed with aluminum bronze alloy; the material of the crosshead sliding sleeve is carbon steel.

[0032] The preferred crosshead material is ZG35CrNiMo, the crosshead sliding sleeve material is medium carbon steel, the outer surface of the crosshead is sprayed with hard aluminum bronze alloy, the model is ZQAl9-4, and the spraying thickness can be 0.51-0.85mm, preferably 0.6-0.7mm, The specific pressure of the sliding shoe is increased, so that the wear of the crosshead and the crosshead sliding sleeve is reduced during the movement, and the working life of the crosshead and the sliding sleeve is improved. Compared with the existing struc...

Embodiment 2

[0034] On the basis of Embodiment 1, the structure of the crosshead is improved;

[0035] Such as figure 2 As shown, in the diaphragm pump, its structure includes a frame, a crosshead sliding sleeve 2, a crosshead 3, a plunger 5, a connecting rod 1, and a crosshead pin 4; the crosshead sliding sleeve 2 is arranged in the frame, and the crosshead 3 is set in the crosshead sliding sleeve 2 and can move back and forth linearly relative to the crosshead sliding sleeve 2, wherein the crosshead 3 includes a crosshead sliding body 31 and a crosshead connecting rod 32, and the crosshead connecting rod 32 includes a circular platform section 33 and a connecting section 34; the large end of the round platform section 33 is connected with the crosshead sliding body 31, the small end of the round platform section 33 is connected with one end of the connecting section 34, and the other end of the connecting section 34 is provided with a threaded hole for being connected with the plunger 5...

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Abstract

The invention provides a crosshead and a crosshead sliding sleeve assembly for a diaphragm pump, which solves the technical problem that the existing plunger packing has a short service life and thus affects the normal operation of the diaphragm pump. The assembly includes a crosshead sliding sleeve and a crosshead arranged in the crosshead sliding sleeve. The crosshead can move back and forth linearly relative to the crosshead sliding sleeve. The material of the crosshead is cast steel, and its outer surface is sprayed with aluminum bronze alloy; The material of the crosshead sliding sleeve is carbon steel, which reduces the wear of the crosshead and the crosshead sliding sleeve during the movement, the downward movement track of the crosshead is not obvious, and the deviation of the plunger movement track is not serious, thus reducing the impact on the plunger packing. Small, which reduces the wear and deformation of the plunger packing and improves the service life of the plunger packing.

Description

technical field [0001] The invention relates to diaphragm pump technology, in particular to a crosshead and crosshead sliding sleeve assembly for a diaphragm pump. Background technique [0002] In the diaphragm pump, the crosshead is an important part that converts the rotational motion of the crankshaft into the reciprocating linear motion of the plunger through the connecting rod, and has a guiding role. Such as figure 1 As shown, the partial structural diagram of the diaphragm pump, which includes the frame 07, the crosshead sliding sleeve 02, the crosshead 03, the plunger 05, the connecting rod 01, and the crosshead pin 04; the crosshead sliding sleeve 02 is set in the frame, The crosshead 03 is set in the crosshead sliding sleeve 02 and can move back and forth linearly relative to the crosshead sliding sleeve 02. One end of the crosshead 03 is connected with the plunger 05 outside the frame 07 through the tappet 06, and the other end of the crosshead 03 is connected by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/14F04B43/02F04B45/04
CPCF04B53/14F04B43/02F04B45/04
Inventor 王建成蒋科祁文王贵屈卫德付岳峰左仓卢飚段鹏飞宁轩赵军李峰金忠升
Owner ACADEMY OF AEROSPACE PROPULSION TECH
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