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A detachable cutting tool assembly

A cutting tool and detachable technology, which is applied in the field of detachable cutting tool assembly, can solve the problems of replacement and inability to carry out gear seats, etc., and achieve the effects of preventing falling off, improving reliability, and increasing bending resistance

Active Publication Date: 2022-07-12
山西能源学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the tooth seat wears out, the tooth seat cannot be replaced because the tooth seat is welded together with the cutting head or the cutting drum body. At this time, the cutting head or the cutting drum has to be repaired

Method used

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  • A detachable cutting tool assembly
  • A detachable cutting tool assembly
  • A detachable cutting tool assembly

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] This embodiment provides a detachable cutting tool assembly, including a conical pick 1, a bevel tooth holder 2, a connecting seat 3 and a fixing block 4; the conical pick 1 includes an integrally formed tooth shank 1.1, a tooth Shoulder 1.2, toothed rod 1.3 and tapered part 1.4; toothed shank 1.1 and toothed shank 1.3 are cylindrical structures; toothed shoulder 1.2 is of circular truncated structure, the bottom surface is connected with toothed shank 1.1, and the top surface is connected to the toothed bar through annular transition surface 1.5 1.3 are connected; the conical part 1.4 is located on the gear rod 1.3, the top is brazed with cemented carbide 1.6, and a plurality of oval anti-bending beams 1.7 are evenly arranged on the circumferential surface; the oval anti-bending beam 1.7 adopts the form of small upper and lower Arrangement, the oval profile curve of oval flexural beam 1.7 is controlled by parametric equation (1),

[0031]

[0032] where c is a numbe...

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Abstract

The invention provides a detachable cutting tool assembly, which belongs to the technical field of coal mining machinery cutting device accessories, and comprises a conical pick, a taper tooth seat, a connecting seat and a fixed block; the conical pick comprises an integrally formed The tooth shank, tooth shoulder, tooth rod and tapered part; the tooth shank and the tooth rod are cylindrical structures; the tooth shoulder is a truncated structure, the bottom surface is connected with the tooth shank, and the top surface is connected with the tooth rod through an annular transition surface; The conical part is located on the toothed rod, the top is brazed with cemented carbide, and a plurality of oval anti-bending beams are evenly arranged on the circumferential surface; the bevel tooth seat is provided with a mounting hole matched with the tooth shank, and the lower part is provided with a quick-insertion tenon ; The connecting seat is used for welding on the cutting head or the cutting drum, and is provided with an insertion slot that cooperates with the quick-insertion tenon; Insert slot for slotting. The above-mentioned detachable cutting tool assembly can increase the bending resistance of the pick, and at the same time realize the detachable connection between the tooth seat and the cutting head or the cutting drum.

Description

technical field [0001] The invention belongs to the technical field of coal mining machinery cutting device accessories, and specifically discloses a detachable cutting tool assembly. Background technique [0002] The pick is installed in the mounting hole of the cutting head tooth holder, and can freely rotate around its axis in the mounting hole. During the working process of the roadheader, the pick directly contacts the coal mass and the rock mass. With the accumulation of time at any time, the circumferential surface of the conical part of the pick shank is uniformly worn until the length of the shank is shortened to be unusable due to wear. Replace with new picks. Some existing picks use the method of reducing the angle of the tapered part and coating the wear-resistant material to prolong the service life of the pick, but this method is actually to make the pick into a combination structure of two materials, and the cutting The bending resistance of the toothed bar ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C35/18E21C35/19
CPCE21C35/18E21C35/19
Inventor 刘霞
Owner 山西能源学院
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