High-pressure slurry-casting ram pump piston system with split rear cover

A technology of high-pressure grouting and plunger pumps, which is applied in variable capacity pump components, components of pumping devices for elastic fluids, pump components, etc., and can solve problems such as low machine efficiency and affecting the quality of engineering grouting , to achieve the effect of simple structure, reduced processing difficulty, and reduced replacement times

Inactive Publication Date: 2011-08-10
鲍春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, frequent downtime not only affects the quality of engineering grouting, but also makes the machine work efficiency low
Therefore, this problem has been puzzling the scientific and technological personnel and other related operators in the industry.

Method used

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  • High-pressure slurry-casting ram pump piston system with split rear cover
  • High-pressure slurry-casting ram pump piston system with split rear cover
  • High-pressure slurry-casting ram pump piston system with split rear cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 as shown,

[0016] The piston system of the prior art high-pressure grouting plunger pump includes a cylinder body 1, a piston rod 2, a sealing gasket 3, and a back cover 4, and the back cover is an integral part composed of a compression cover and a sleeve. There is a fit tolerance 5 between the back cover and the piston rod.

[0017] Such as figure 2 , 3 as shown,

[0018] In the present invention, the back cover is set as a separate integral part composed of an inner compression sleeve 41 and an outer compression sleeve 42, and the inner compression sleeve extends into the outer compression sleeve. The front gland 411 of the inner compression sleeve fits with the sealing gasket 3; the inner compression sleeve body 412 fits tightly on the outside of the piston rod 2, and extends into the outer compression sleeve as a whole, and the inner compression sleeve The end of the body is exposed outside the rear gland 421 of the outer compression sleeve;...

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PUM

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Abstract

The invention provides a high-pressure slurry-casting ram pump piston system with a split rear cover. The piston rear cover of the system is provided with an inner clamping sleeve and an outer clamping sleeve which are split, and a free space is remained between the inner clamping sleeve and the outer clamping sleeve. The invention solves the problem that a seal washer of the prior high-pressure slurry-casting ram pump piston is often scratched by slurry hardening objects, thereby reducing the replacement time of the seal washer, leading the high-pressure slurry-casting ram pump piston to be in a good work state in a long period, and improving the medium pouring quality and the machine work efficiency. The high-pressure slurry-casting ram pump piston system with a split rear cover has simple structure, greatly improves the processing difficulty of the original rear cover, not only can ensure the tight fit with a piston rod, but also can allow larger operating errors, and can be directly replaced without changing the specifications of the piston system and other subassemblies; and otherwise, the inner clamping sleeve with smaller volume can be made of high wear-resistant materials is tightly fit with the piston rod so as to resist wear and can prolong the service life of the piston system.

Description

technical field [0001] The invention relates to a plunger pump, in particular to a high-pressure grouting plunger pump, and more specifically to a high-pressure grouting plunger pump piston system with a split back cover. Background technique [0002] High-pressure grouting plunger pumps are necessary special equipment in urban construction, water conservancy, and hydropower engineering construction. The equipment uses the reciprocating motion of the piston of the plunger pump to inject mortar, mud and other media into the weak link of the foundation or the crack of the building under high pressure, so as to plug leakage, strengthen the foundation or strengthen the building. In modern engineering construction, in order to achieve better plugging and reinforcement effects, chemical materials that can quickly solidify and harden into a solid state are often used in the injected slurry. However, during the grouting process of this chemical material with special properties, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/14F04B53/16
Inventor 鲍春
Owner 鲍春
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