Concrete pumping equipment and wearing-resisting sleeve thereof and manufacturing method of wearing-resisting sleeve
A manufacturing method and a technology of wear-resistant sleeves, which are applied to components, mechanical equipment, pump components, etc. of pumping devices for elastic fluids, can solve the problems of short service life of wear-resistant layers, and achieve the effect of improving service life
Active Publication Date: 2015-05-20
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology
[0004] The present invention aims to provide a concrete pumping equipment and its wear-resistant sleeve and the manufacturing method of the wear-resistant sleeve to solve the problem of short service life of the wear-resistant layer in the prior art
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[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0022] As a first aspect of the present invention, a wear-resistant sleeve is provided. Such as image 3 As shown, the wear-resistant sleeve in the present invention includes: a body 1 and a wear-resistant layer 2, and the wear-resistant layer 2 is formed on the outside of the body 1 by heterogeneous sintering. Preferably, the body is medium carbon steel or medium carbon alloy steel. The wear-resistant sleeve of the present invention combines the wear-resistant material with the main body through the method of heterogeneous sintering, wherein "heterogeneous sintering" refers to combining two different metal or non-metal phases (such as steel, ceramics, special alloys, etc.) ) together into the sintering furnace (mold is required if necessary), at ...
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Abstract
The invention provides concrete pumping equipment and a wearing-resisting sleeve thereof and a manufacturing method of the wearing-resisting sleeve. The wearing-resisting sleeve comprises a body and a wearing-resisting layer, wherein the wearing-resisting layer is formed at the outer side of the body through phase-out sintering. According to the invention, the wearing-resisting layer and the body are combined by the phase-out sintering way to form a compact inter-melting metallurgical bonding layer, so that the bonding force between the wearing-resisting layer and the body is far greater than that of a wearing-resisting layer obtained by adopting a chromeplating process and other processes, and the thickness of the wearing-resisting layer prepared by utilizing the manufacturing method disclosed by the invention is 2-3mm, and the service life of the wearing-resisting layer is prolonged.
Description
technical field [0001] The invention relates to the field of concrete equipment, and more specifically, to a concrete pumping equipment, a wear-resistant sleeve and a method for manufacturing the wear-resistant sleeve. Background technique [0002] The pumping unit is the core component of concrete pumping equipment (such as pump trucks and trailer pumps). Its material distribution methods generally include S-pipe valves, gate valves, and skirt valves, among which S-pipe valves are the most common. figure 1 A schematic diagram of the structure of the pumping unit using the S-tube valve is shown. Such as figure 1 As shown, one end of the S-pipe 10 rotates fixedly, and the other end swings left and right at a certain frequency, through which the other end of the left and right swing can achieve the purpose of continuous conveying of materials by the double cylinders. Among them, a wear-resistant sleeve 11 is arranged on the fixedly rotating end, and the wear-resistant sleeve...
Claims
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IPC IPC(8): F04B53/00
Inventor 李勇光刘昆吾
Owner ZOOMLION HEAVY IND CO LTD