CN204754789U

CN204754789U - Flap valve formula chisel shaped bit suitable for multilayer collecting space area is surveyed

Info

Publication number: CN204754789U
Application number: CN201520404253.5U
Authority: CN
Inventors: 白俊; 殷琨; 杨兆林; 赵乐涛; 韩良德
Original assignee: Taiyuan Iron and Steel Group Co Ltd
Current assignee: TISCO Lanxian Mining Co. Ltd.
Priority date: 2015-06-12
Filing date: 2015-06-12
Publication date: 2015-11-11
Anticipated expiration: 2025-06-12

Abstract

The utility model relates to a drill bit, especially a flap valve formula chisel shaped bit suitable for multilayer collecting space area is surveyed. A flap valve formula chisel shaped bit suitable for multilayer collecting space area is surveyed, constitute by bit body and slider two parts, the bit body end is provided with the slide to drill bit center perforating hole slope, but slider slidable mounting is in the slide, bit body end slope edge has 6 Q1625 alloy post teeth that are in same circumference, there are 10 Q1422 alloy post teeth on the plane of bit body end, there is a spacing Q1019 alloy post tooth slide outer end, the outer terminal surface of slider has two Q1422 alloy post teeth. The beneficial effects of the utility model are that: the slider is automatic the slip in the slide, and the phenomenon that has reduced the stifled drill bit of rock ore deposit card effectively takes place to reached and once only worn layer probing to the multilayer dead zone.

Description

A kind of flapper-type chisel bit being applicable to multilayer Mined-Out Areas

Technical field

The utility model relates to a kind of drill bit, particularly a kind of flapper-type chisel bit being applicable to multilayer Mined-Out Areas.

Background technology

Because Goaf Area has, latent property is strong, the regular difference of spatial distribution characteristic, goaf top plate caving collapse situation are difficult to the features such as prediction.Therefore, how layer probing is worn to multilayer goaf, underground, and accurately can also grasp the inbreak situation etc. in multilayer dead zone spatial distribution, morphological parameters and goaf, be that puzzlement technician carries out goaf potential hazard evaluation and rationally determines a key technology difficult problem for goaf punishment countermeasure always.

Multilayer dead zone easily being caused hole wall fragmentation, being missed or caving in when drilling dead zone, top, if use common chisel bit to creep into, strong aperture blowing is carried out when running into the situation that at the bottom of hole, empty slag is more or rock core (landwaste) is more, easily make sillar blocking central passage, thus reacting cycle slag-discharging condition can be affected.

Summary of the invention

The technical scheme that the utility model adopts is: the probing how providing a kind of drill bit can meet goaf uses.

The technical scheme that the utility model adopts is: a kind of flapper-type chisel bit being applicable to multilayer Mined-Out Areas, be made up of bit body and slide block two parts, bit body termination is provided with the slideway tilted to bit central through hole, slide block is slidably arranged in slideway, bit body termination inclined side there are 6 the Q1625 alloy column teeth being in same circumference, bit body Flat-end there are 10 Q1422 alloy column teeth, there is a spacing Q1019 alloy column tooth slideway outer end, and there are two Q1422 alloy column teeth slide block outer face.

The beneficial effects of the utility model are: slide block automatically slides in slideway, and the phenomenon effectively reducing rock ore deposit blocking drill bit occurs, and reaches and carry out the probing of disposable wearing layer to multilayer dead zone.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the utility model in drilling process;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is that the utility model is being in the schematic diagram in goaf;

Fig. 4 is the B-B sectional view of Fig. 3;

Fig. 5 is the front view schematic diagram of slide block;

Fig. 6 is the lateral view schematic diagram of slide block;

Fig. 7 is the rear elevation schematic diagram of Fig. 5;

Fig. 8 is the D direction view of Fig. 6;

Fig. 9 is the C-C sectional view schematic diagram of Fig. 5.

Wherein, 1, bit body, 2, Q1019 alloy column tooth, 3, slide block, 4, Q1422 alloy column tooth on bit body Flat-end, 5, Q1625 alloy column tooth on the inclined side of bit body termination, 6, slideway, 7, bit central through hole.

Detailed description of the invention

The utility model is made up of bit body and slide block two parts.Bit body is provided with the slideway tilted to bit central through hole, and slide block can slide freely in slideway.As depicted in figs. 1 and 2, when normal detritus creeps into, slide block is under the reaction force condition of hole bed rock stone, slide along slideway to bit central, reduce bit central through hole entrance size, thus the sillar granular size entering whole drilling tool center reacting cycle passage can be reduced, also reduce the probability of reacting cycle passage generation sillar blocking.As shown in Figure 3 and Figure 4, when stopping probe under brill, slide block is under its deadweight condition, outwards slide along slideway, expand bit central through hole entrance size, probe for 3-D scanning survey meter stretches out bit body smoothly and provides support, if shown in concrete structure Fig. 5-Fig. 9 of slide block, the structure of slideway is the structure coordinated with slide block.Due to the working condition difference of the carbide cylinder bits that (bit body termination) on drill bit labial surface inlays, so flapper-type chisel bit has selected the carbide cylinder bits of three kinds of materials: it is the most serious that bit body outmost turns gauge alloy weares and teares in drilling process, so select the meshing gold of ball that diameter is comparatively large, quality is also more better, i.e. carbide cylinder bits-Q1625; On baseplane, carbide cylinder bits-Q1422 selected by remaining alloy; Carbide cylinder bits-Q1019 selected by the alloy marked for limiting drill bit slide block.

Claims

1. one kind is applicable to the flapper-type chisel bit of multilayer Mined-Out Areas, it is characterized in that: be made up of bit body and slide block two parts, bit body termination is provided with the slideway tilted to bit central through hole, slide block is slidably arranged in slideway, bit body termination inclined side there are 6 the Q1625 alloy column teeth being in same circumference, bit body Flat-end has 10 Q1422 alloy column teeth, there is a spacing Q1019 alloy column tooth slideway outer end, and there are two Q1422 alloy column teeth slide block outer face.