Anti-falling cutting pick with composite assembled structure

A combined assembly and anti-shedding technology, applied in the field of picks

Inactive Publication Date: 2013-03-27
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the contradiction between the brazing of the pick head and the heat treatment of the pick body on the performance of the pick that exists in the current welded pick, and the pick body To solve the technical problems such as premature shedding and scrapping of the pick head due to wear and tear, an assembled anti-falling pick with self-locking taper connection between the pick head and the pick body is provided

Method used

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  • Anti-falling cutting pick with composite assembled structure

Examples

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Effect test

Embodiment 1

[0019] Such as figure 1 Shown, a kind of pick of the present invention has combined assembly structure anti-shedding ， It includes a pick handle 3, a pick head 1, and a protective fixing sleeve 2. The pick head 1 and the pick shank 3 are connected by self-locking Morse taper, the pick head 1 is an inner taper hole, and the pick shank 3 is an outer taper shank; the protective fixing sleeve 2 and the pick head 1 also adopt self-locking Morse taper Taper connection, the pick head 1 is an outer tapered shank, the protective fixing sleeve 2 is an inner tapered hole; the protective fixing sleeve 2 and the pick shank 3 are threaded. Pick head 1 is a hard alloy pick head

Embodiment 2

[0021] Such as figure 1 Shown, a kind of pick of the present invention has combined assembly structure anti-shedding ， It includes a pick handle 3, a pick head 1, and a protective fixing sleeve 2. The pick head 1 and the pick shank 3 are connected by a self-locking standard metric taper, the pick head 1 is an inner taper hole, and the pick shank 3 is an outer taper shank; the protective fixing sleeve 2 and the pick head 1 also adopt a self-locking standard metric system Taper connection, the pick head 1 is an outer tapered shank, the protective fixing sleeve 2 is an inner tapered hole; the protective fixing sleeve 2 and the pick shank 3 are threaded. The pick head 1 is a diamond pick head.

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PUM

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Abstract

The invention discloses a high-performance anti-falling cutting pick with a composite assembled structure. The cutting pick comprises a cutting pick shank, a cutting pick head, and a protective fixing sleeve. One end of the cutting pick shank is a fixing end. The other end of the cutting pick shank and the cutting pick head form a taper connection through self-locking. The cutting pick head has an inner taper hole, and the cutting pick shank has an outer taper shank. The protective fixing sleeve and the cutting pick head also form a taper connection through self-locking. The cutting pick head has an outer taper shank, and the protective fixing sleeve has an inner taper hole. The protective fixing sleeve and the cutting pick shank are threadedly connected. With the cutting pick provided by the invention, cutting pick head anti-falling capacity and cutting pick service life can be improved, construction efficiency can be effectively improved, and construction cost can be reduced.

Description

technical field [0001] The invention relates to a pick for coal mining and engineering construction, in particular to a pick with a combined assembly structure to resist falling off. Background technique [0002] In recent years, due to the great improvement of the technical level and performance of the main engine of construction machinery equipment, the pick, which is an important construction tool for construction machinery equipment such as coal mining and roadway excavation, has become a key factor affecting construction progress, efficiency, quality and cost. The current pick is a welded structure. The pick is composed of a pick body and a pick head. The carbide pick head or the polycrystalline diamond composite pick head is welded on one end of the pick body. There are two problems in the pick of welded structure. One problem is: from the current manufacturing process, in order to improve the wear resistance and mechanical properties of the pick body, the pick body ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C35/183E21C35/197
Inventor 黄树涛周丽
Owner SHENYANG LIGONG UNIV
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