CN106801604B - A kind of split type pick-like bit - Google Patents

A kind of split type pick-like bit Download PDF

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Publication number
CN106801604B
CN106801604B CN201710096856.7A CN201710096856A CN106801604B CN 106801604 B CN106801604 B CN 106801604B CN 201710096856 A CN201710096856 A CN 201710096856A CN 106801604 B CN106801604 B CN 106801604B
Authority
CN
China
Prior art keywords
pick
hard alloy
tooth body
bit
head
Prior art date
Application number
CN201710096856.7A
Other languages
Chinese (zh)
Other versions
CN106801604A (en
Inventor
宣宏斌
杨芬
张鹏
李腾宇
寇子明
Original Assignee
太原理工大学
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Filing date
Publication date
Application filed by 太原理工大学 filed Critical 太原理工大学
Priority to CN201710096856.7A priority Critical patent/CN106801604B/en
Publication of CN106801604A publication Critical patent/CN106801604A/en
Application granted granted Critical
Publication of CN106801604B publication Critical patent/CN106801604B/en

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Abstract

A kind of split type pick-like bit, including hard alloy head, taper sheath, alloy steel-tooth body, cylindrical shroud and circlip;The hard alloy head and alloy steel-tooth body have corresponding rectangle toothing, the seamless connection for carrying out hard alloy head and alloy steel-tooth body is mutually twisted by rectangle toothing, it is arranged with cylindrical shroud and card slot and its circlip on the toothholder of alloy steel-tooth body tail portion, realizes the spinning of hard alloy head.Hard alloy head of the invention is mutually twisted the seamless connection for realizing that hard alloy head and tooth body drill by rectangular teeth, hard alloy head can autorotation simultaneously, be conducive to the uniform wear of hard alloy head, the sleeve being made by wear-resistant material fixes pick body, has not only enhanced the wearability of pick-like bit but also has realized the handling property of pick-like bit.

Description

A kind of split type pick-like bit

Technical field

It is specifically a kind of to be used for operating mechanism's cutting the present invention relates to a kind of cuttings such as mining machinery or break mined material equipment Or the pick of break mined material.

Background technique

Pick-like bit is the critical component for determining coalcutter Cutting Performance, working efficiency, since operating condition is severe, by High-frequency percussion load and coal body continuous frictional easily cause to fracture and be seriously worn phenomenon, lead to not passing fault or efficiency It is low.The palace Jin Hua mine is in examination mining phase, the pick-like bit simple using structure, the depth of cut is big and energy consumption is low.This pick The pick body and tooth head of type pick are a kind of alloy steel materials, have only applied one layer of wearing layer, thus this section in tooth head position Tooth intensity is low, causes frequently to replace also to can not be successfully to pass through tomography.For this problem it is proposed that a kind of split type load and unload Pick-like bit, change the material of wearability high intensity at the delicate position of pick, and tooth body uses common alloy steel material.

Summary of the invention

The present invention is intended to provide a kind of wearability is good, split type pick-like bit with long service life.

A kind of split type pick-like bit provided by the invention, including hard alloy head, taper sheath, alloy steel-tooth body, cylinder Shape set and circlip;It is characterized by: the hard alloy head and alloy steel-tooth body have corresponding rectangle toothing, pass through rectangle Toothing is mutually twisted the seamless connection for carrying out hard alloy head and alloy steel-tooth body, covers on the toothholder of alloy steel-tooth body tail portion Equipped with cylindrical shroud and card slot and its circlip, the spinning of hard alloy head is realized.

Wherein, the hard alloy head is that the sleeve being made by wear-resistant material fixes pick-like bit tooth body;The hard The outer surface of alloy head is coated with wear-resistant material.

A kind of split type pick-like bit provided by aforementioned present invention, compared with prior art, the beneficial effect is that: this Invention pick-like bit is seamlessly connected using hard alloy head and steel alloy denticle, can be by pick after hard alloy head or denticle abrasion It dismantles and is individually replaced, not only saved the time but also about cost successively;This split type pick-like bit provided by the invention Manufacturing process is simple, can mass production each section, then assembled again;The hard of this pick-like bit provided by the invention Alloy head is not easily to fall off, and wearability and intensity are better than common pick, practical.

Detailed description of the invention

Fig. 1 is the split type integrally-built schematic diagram of pick-like bit of the present invention.

Fig. 2 is the section figure structure schematic representation of the split type pick-like bit of the present invention.

Fig. 3 is the hard alloy head structural schematic diagram of the invention with rectangular teeth.

Fig. 4 is the pick body structure schematic diagram of the invention with rectangular teeth.

Fig. 5 is the partial enlargement structural representation on pick body of the present invention head.

Fig. 6 is clip spring structure schematic diagram of the present invention.

In figure: 1, hard alloy head;2, taper sheath;3, alloy steel-tooth body;4, cylindrical shroud;5, circlip.

Specific embodiment

Specific embodiments of the present invention are made further instructions below in conjunction with attached drawing.

Implement a kind of above-mentioned provided split type pick-like bit of the present invention, head directly contacts when which works Coal petrography is crushed by coal petrography, therefore it is most easily worn, and hard conjunction is used alone to extend cutting-gear life for the head of pick-like bit Jin Gang, pick body uses common alloy steel, and is connected hard alloy head 1 and pick body 3 by being mutually twisted for rectangular teeth It is connected together.This connection request pick body is the structure of dissection type.After hard alloy head 1 and pick body 3 are installed, It on the one hand is fixed pick body on the other hand in order to cover one layer of wearing layer to the tooth body of contact coal petrography part, it will be by wear-resisting material 2 sets of taper sheath made of expecting, can be at the edge that taper sheath is contacted with tooth body to further fix taper sheath on the conical surface of pick It is welded.Since pick-like bit can be with rotation in toothholder, the position of pick and toothholder contact when work Also can wear, so as with the effect of taper sheath, also with the cylindrical shroud 4 made of wear-resistant material by pick body with The position of toothholder contact is entangled, and the fixation of cylindrical shroud is mainly by its interference fit between pick body.In pick body Tail portion have the jump-ring slot for being connected with pick pedestal, the tooth body of pick-like bit is further fixed by circlip 5.In work In work, the hard alloy head of pick-like bit provided by the invention be it is rotary, be conducive to uniform wear, and the pick is It is split type removably, pick-shaped cutter can be dismantled after damage and be carried out to damaged part such as hard alloy head or tooth body by a certain position Replacement, had not only saved the time but also had saved cost.

Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art The variations, modifications, additions or substitutions that those of ordinary skill is done within the essential scope of the present invention also belong to protection of the invention Range.

The specific embodiment of aforementioned present invention is according to the work characteristics of pick-like bit by most easily worn pick head Wearability and the preferable cemented carbide material of intensity is used alone, tooth body uses more common alloy steel material.In order to make The tooth body that the tooth head and steel alloy that hard alloy is made into are made into realizes seamless connection, and the present invention is devised in their connecting portion Rectangular teeth, tooth body are dissection types, by rectangular teeth be mutually twisted connect hard alloy head with alloy steel-tooth body will not be right Pick material damages, and hard alloy head can realize rotation during coal petrography cutting, be conducive to uniform wear.By It is dissection type in the tooth body that steel alloy is made into, in order to which two halves tooth body is fixed together, the present invention provides one kind by wear-resisting The taper sheath that material is made into can both fix tooth body but also as wearing layer by covering taper sheath on the conical surface of pick-like bit. Since pick-like bit can be with rotation in the toothholder on roller, also there is wearability in the contact site of pick and toothholder Certain requirement, so the present invention provides a kind of covered by the cylindrical sleeve that wear-resistant material is made into contact in pick with toothholder Position acts on as taper sheath above effect.There is the jump-ring slot being connected with pick pedestal in the tail portion of tooth body, passes through Circlip further fixes the tooth body of pick-like bit.

Claims (3)

1. a kind of split type pick-like bit, including hard alloy head, taper sheath, alloy steel-tooth body, cylindrical shroud and circlip;It is special Sign is: the hard alloy head (1) and alloy steel-tooth body (3) have corresponding rectangle toothing, pass through rectangle toothing phase Mutually occlusion carries out the seamless connection of hard alloy head (1) and alloy steel-tooth body (3), and the alloy steel-tooth body (3) is dissection type knot Two halves tooth body is fixedly connected by taper sheath (2), is arranged with cylindrical shroud on the toothholder of alloy steel-tooth body (3) tail portion by structure (4) and card slot and its circlip (5), the spinning of hard alloy head is realized.
2. split type pick-like bit according to claim 1, it is characterised in that: the hard alloy head (1) is by wear-resisting The sleeve that material is made into fixes pick-like bit tooth body.
3. split type pick-like bit according to claim 1, it is characterised in that: the outer surface of the hard alloy head (1) It is coated with wear-resistant material.
CN201710096856.7A 2017-02-22 2017-02-22 A kind of split type pick-like bit CN106801604B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710096856.7A CN106801604B (en) 2017-02-22 2017-02-22 A kind of split type pick-like bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710096856.7A CN106801604B (en) 2017-02-22 2017-02-22 A kind of split type pick-like bit

Publications (2)

Publication Number Publication Date
CN106801604A CN106801604A (en) 2017-06-06
CN106801604B true CN106801604B (en) 2019-06-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710096856.7A CN106801604B (en) 2017-02-22 2017-02-22 A kind of split type pick-like bit

Country Status (1)

Country Link
CN (1) CN106801604B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787887A (en) * 2010-01-12 2010-07-28 太原理工大学;太原华模研究所 Pick having bimetal structure and preparation method thereof
CN103009001A (en) * 2012-12-20 2013-04-03 河南省煤科院耐磨技术有限公司 Production method of cold assembly low-cutting-resistance wear-resistant conical bit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787887A (en) * 2010-01-12 2010-07-28 太原理工大学;太原华模研究所 Pick having bimetal structure and preparation method thereof
CN103009001A (en) * 2012-12-20 2013-04-03 河南省煤科院耐磨技术有限公司 Production method of cold assembly low-cutting-resistance wear-resistant conical bit

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Publication number Publication date
CN106801604A (en) 2017-06-06

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