CN202882917U

CN202882917U - Novel cutter head with replaceable top cutting edge

Info

Publication number: CN202882917U
Application number: CN201220486586.3U
Authority: CN
Inventors: 张保健; 周福民; 庞玉申; 侯加春; 黄文国
Original assignee: 邵祥顺
Priority date: 2012-09-24
Filing date: 2012-09-24
Publication date: 2013-04-17
Anticipated expiration: 2022-09-24

Abstract

The utility model discloses a novel cutter head with a replaceable top cutting edge, and is applicable to the dredging in the construction of underworkings, a railway and a tunnel in hard geologies such as a coal field geology and a coal mine above a medium-hard rock layer. The novel cutter head with the replaceable top cutting edge is mainly characterized by mainly comprising a cutter head body (1), a cutting pick (2), a tooth holder (3) and a replaceable top cutting edge (4) and is mainly characterized in that the cutting edge (4) which is conductive to the heading of a heading machine is arranged on the conical top of the cutter head body to replace the cutting pick (2) and the tooth holder (3) at the original part, and the cutting edge is also called a center cutter. The cutting heading capacity of the cutting head is enhanced, domestic and oversea shield trenchless technology which becomes more and more perfect is introduced, and the cutter head is loved by the masses of users due to the advantages of high wear resistance, easy assembly and disassembly, easy cutting, strong rock breaking capacity and the like.

Description

The novel cutterhead of a kind of replaceable top cut sword

Technical field

The utility model belongs to combine under the coal mine to dig uses cutterhead, is specifically related to the easily novel cutterhead of driving, replaceable top cut sword of a kind of hard rock mole.

Background technology

Along with the raising of Mechanion degree and going from strength to strength of drift section, the geology operating mode that development machine is faced is complicated and changeable, and driving is difficulty more and more, and abrasiveness is more and more high, unidirectional compressive strength even can reach 170Mpa; At present, external many heavy tunneling machine cutting power have reached 200～350KW, reach as high as 500KW; And the heavy development machine of China still is in developing stage at present, and cutting power progressively improves.

Three phases has mainly been experienced in the development of the boom-type roadheader of China.

Phase I: the phase at the beginning of the sixties in last century, this one-phase mainly was that the Introduced From Abroad development machine is main to the end of the seventies, and also several types have been produced in typing, digest, absorb when introducing.

Second stage: the end of the seventies in last century is to the end of the eighties, this one-phase, China with external co-production several boom-type roadheaders and realized that progressively production domesticization, Typical Representative are and AM50 type and the S100 type of Austria, Japanese co-production.

Phase III: last century by the beginning of the nineties so far, along with the integration of state coal resource, large-scale mine is more and more, narrow drift section can not be fit to colliery high-yield and high-efficiency need of production.And the gradually expansion of drift section, and geological conditions is complicated and changeable, and the raising of formation hardness, light-duty and neutral development machine can not be satisfied the demand fully, therefore in the urgent need to the heavy development machine of the hard rock of development of new.

Before and after calendar year 2001, the main type cutting power of China's development machine is about 120KW, is mainly used in the driving of coal and half rock gangway, by 2006, cutting power reached 160KW, was mainly used in the driving in coal road or total rock lane, cutting power reached 315KW in 2010, was mainly used in the driving in total rock lane; The tunneling machine cutting fragmentation of the full pick cutting head of traditional configuration can only be used for low sharp rock effectively, and to the rock of hard, the pick rate of wear is extremely fast, fuselage shaking is large, reliability is low, and the complete machine move speed is slow, in addition occur " idle running ", " card machine "; And the Fast Wearing of pick and change the wearing and tearing of untimely easy aggravation toothholder, wherein cutterhead pick and toothholder wearing and tearing foremost are the fastest, life-span does not mate, bother very much and change toothholder, affect simultaneously drivage efficiency, and development machine " idle running ", " card machine " especially to the infringement of body itself; And following aspect is always considered in China's tradition hard rock mole improvement: increase pick quantity, the power that improves pick material, increase machine and weight etc., design and develop limitation very large.

Summary of the invention

The purpose of this utility model is the shortcoming that overcomes existing product, a kind of broken rock of cut, driving ability of having strengthened cutterhead is provided, greatly alleviated labour intensity and the cost of changing front end toothholder assembly, the novel cutterhead of hard rock mole with replaceable top cut sword suits.

The purpose of this utility model is achieved in that

Main feature is: the novel cutterhead of a kind of replaceable top cut sword, mainly contain the body of the cutting head (1), pick (2), toothholder (3) and replaceable top cut sword (4) and form, it is characterized by and configured pick (2) and the toothholder (3) that the cut sword (4) that is beneficial to the development machine jacking replaces former position at the body of the cutting head circular cone top; At recommendation shield structure trenchless technology, keep traditional cutterhead pick (2) and toothholder (3) spirality on the body of the cutting head to distribute, and configure pick (2) and toothholder (3) that the cut sword (4) that is beneficial to the development machine jacking replaces former position at the body of the cutting head circular cone top; Motion mode during the cutterhead excavation generally has two kinds: swing cut and jacking; Swinging cut is main cutting form, and at this moment most cut task is being undertaken in the side of cutterhead; The utility model keeps traditional cutterhead pick (2) and toothholder (3) spirality on the body of the cutting head side to distribute, and can better bring into play the good Cutting Performance of conical cutter, and

Under the effect of the asymmetrical friction power of rock and pick, pick rotates in toothholder, make and every pick is remained conical, so in use can keep the interactional condition between rock and the pick, thereby what guarantee the cutting capacity of development machine and coal becomes the piece rate, effectively reduces respirable dust, the biogas amount of gushing and triboluminescent probability; And during the development machine jacking, with the main position of the hard collision of coal petrography be the cutter of cutterhead circular cone top configuration; Pick belongs to " point is attacked cutter ", and in hard rock geology, traditional cutterhead circular cone top pick can not effectively break rock, jacking; And because its contact area is little, single stressed very large, alloy is frangible or pick is easily broken, needs more frequently to change pick; And the Fast Wearing of pick and change the wearing and tearing of untimely easy aggravation toothholder; Because toothholder material weldability is relatively poor, easily disconnected or fall toothholder under high strength vibrations or wearing and tearing, make the cutterhead efficient of can not bringing into normal play, reduce production capacity; The frequency that toothholder need to be changed is too fast, and dismounting and change more loaded down with trivial detailsly, brings heavy labour intensity to the workman; The utility model replaces pick (2) and the toothholder (3) at the body of the cutting head circular cone top with the cut sword (4) that is beneficial to jacking, the abilities such as wear-resisting by the cut sword, broken rock jacking better adapt to the driving of underworkings, railway and the constructing tunnel of the hard place matter such as the above coal field geology in medium ground, colliery; And be specifically designed to the installing hole of cut sword in the body of the cutting head configuration, when guaranteeing that use is firm, stable, quick release, replacing; Wherein the cut sword also claims center cutter.

The configuration of cutterhead cutter also considers real work parameter and technological parameter, cutterhead is done corresponding adjustment and improvement from structure and cutter arrangement aspect, make the side pick can undertake most cut task, replaceable top cut sword (4) can guarantee the normal driving of development machine, and makes the complete machine of the same type of the relatively identical operating mode of this development machine: specific energy consumption is low, little, the fast rate of cutter loss is high.

Following layout architecture can be adopted in above-mentioned replaceable top cut sword (4), (5), (6):

1, replaceable top cut sword (4) becomes in-line at the body of the cutting head circular cone top, above embedded alloy, the interval of alloy is selected by actual condition; As shown in Figure 3.

2, replaceable top cut sword (5) becomes herringbone at the body of the cutting head circular cone top, above embedded alloy, the interval of alloy is selected by actual condition; As shown in Figure 4.

3, replaceable top cut sword (6) becomes herringbone at the body of the cutting head circular cone top, and upper surface soldering strip alloy strengthens wear-resisting, the rock breaking capacity of replaceable top cut sword (6); As shown in Figure 5.

Description of drawings

Fig. 1 is the first structural representation of the present utility model;

Fig. 2 is the right view of the first structural representation of the present utility model;

Fig. 3 is the top view of the first structural representation of the present utility model;

Fig. 4 is the second structural representation of the present utility model;

Fig. 5 is the third structural representation of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing example of the present utility model is elaborated.

As shown in drawings, the utility model is a kind of novel hard rock mole usefulness, easily driving, replaceable cutterhead; The pick (2) that wherein spirality distributes on the body of the cutting head (1) side is used for the swing cut of cutterhead, it is undertaking most cut task, the cut sword (4) of the body of the cutting head circular cone top configuration, wherein the cut sword also claims center cutter, be used for broken rock and the jacking of hard formation, improve the broken rock of cutterhead, feeding ability; The utility model can be widely used in the driving of underworkings, railway and the constructing tunnel of hard place matter.

Claims

1. the novel cutterhead of a replaceable top cut sword, mainly contain the body of the cutting head (1), pick (2), toothholder (3) and replaceable top cut sword (4) and form, it is characterized by and configured pick (2) and the toothholder (3) that the cut sword (4) that is beneficial to the development machine jacking replaces former position at the body of the cutting head circular cone top; Wherein the cut sword also claims center cutter.

2. the novel cutterhead of a kind of replaceable top according to claim 1 cut sword, it is characterized in that, described cutterhead pick (2) and toothholder (3) distribute on the body of the cutting head (1) twist, and configure pick (2) and toothholder (3) that the cut sword (4) that is beneficial to the development machine jacking replaces former position at the body of the cutting head circular cone top; Wherein the cut sword also claims center cutter.