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Bimetal composite inner sleeve, bimetal composite outer sleeve and manufacturing method thereof

A composite jacket and bimetal technology, applied in the field of construction machinery, can solve the problems of short life, poor wear resistance, etc., and achieve the effect of improving the overall life, wear resistance, and life

Pending Publication Date: 2020-08-18
王学伍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a bimetallic composite inner sleeve, a bimetallic composite outer sleeve and a manufacturing method thereof, so as to overcome the defects of poor wear resistance and short service life of the inner sleeve and the outer sleeve in the prior art

Method used

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  • Bimetal composite inner sleeve, bimetal composite outer sleeve and manufacturing method thereof
  • Bimetal composite inner sleeve, bimetal composite outer sleeve and manufacturing method thereof
  • Bimetal composite inner sleeve, bimetal composite outer sleeve and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0029] A bimetal composite inner sleeve, comprising an inner sleeve body, characterized in that: the inner sleeve body includes an inner sleeve outer layer 1 and an inner sleeve inner layer 2, and the inner sleeve inner layer 2 is welded to the inner sleeve by metal welding The outer layer 1 is integrally formed.

Embodiment 2

[0031] A bimetal composite inner sleeve, the material of the inner layer 2 of the inner sleeve is calculated by weight percentage, and its composition is: C: 0.3-0.45%, Cr: 12-18.5%, Mn: 0.3-0.7%, V: 0.18 -0.26%, Si: 0.2-0.9%, Mo: 0.6-1.5%, S: ≤0.03%, P: ≤0.04%, Nb: 0.06-0.2%, N: ≤0.4%, Ni: 0.5-1.5%, The rest is Fe and unavoidable impurities; the material of the outer layer 1 of the inner sleeve is calculated by weight percentage, and its composition is: C: 0.2-0.3%, Cr: 5-7.5%, Mn: 0.3-0.6%, Si: 0.2-0.9%, Mo: 0.3-0.7%, S: ≤0.03%, P: ≤0.04%, Nb: 0.06-0.1%, N: ≤0.4%, Ni: ≤0.4%, the rest is Fe and unavoidable Impurities; Other structures are the same as in Example 1.

Embodiment 3

[0033]A bimetal composite sleeve, the thickness of the inner layer 2 of the inner sleeve is 2mm-4mm; other structures are the same as those in Embodiment 1.

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Abstract

The invention discloses a bimetal composite inner sleeve, a bimetal composite outer sleeve and a manufacturing method of the bimetal composite inner sleeve and the bimetal composite outer sleeve, andbelongs to the technical field of engineering machinery. The defect that in the prior art, an inner sleeve and an outer sleeve are poor in abrasion resistance and difficult to disassemble is overcome.The bimetal composite inner sleeve comprises an inner sleeve body, the inner sleeve body comprises an inner sleeve outer layer and an inner sleeve inner layer, and the inner sleeve inner layer and the inner sleeve outer layer form a whole in a metal welding mode; and the bimetal composite outer sleeve comprises an outer sleeve body, the outer sleeve body comprises an outer sleeve outer layer andan outer sleeve inner layer, and the outer sleeve inner layer and the outer sleeve outer layer form a whole in a metal welding mode. The bimetal composite inner sleeve and the bimetal composite outersleeve are mainly used for fixing and guiding a drill rod in a breaking hammer.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a bimetal composite inner sleeve, a bimetal composite outer sleeve and a manufacturing method thereof. Background technique [0002] The breaking hammer is a kind of engineering machinery widely used. The breaking hammer is mainly composed of a cylinder, a drill rod, a piston, etc. The middle and bottom of the cylinder are fixedly installed with an inner sleeve and an outer sleeve (the inner sleeve and the outer sleeve can also be called the front lining. Sleeve and rear bushing), the drill rod is installed in the inner sleeve and the outer sleeve, and the drill rod moves up and down relative to the inner sleeve and the outer sleeve during work to cause mutual wear. [0003] The inner sleeve and the outer sleeve are vulnerable parts in the breaker, and they should be replaced if the wear of the inner surface exceeds 8 mm. The inner sleeve installation h...

Claims

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Application Information

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IPC IPC(8): B22D19/16B22D13/04C22C38/04C22C38/02C22C38/44C22C38/46C22C38/48C22C38/22C22C38/26C22C33/06C21D9/40C21D1/26B02C1/12B02C23/00
CPCB02C1/12B02C23/00B22D13/04B22D19/16C21D1/26C21D9/40C22C33/06C22C38/001C22C38/02C22C38/04C22C38/22C22C38/26C22C38/44C22C38/46C22C38/48
Inventor 王学伍
Owner 王学伍
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