CN2464924Y

CN2464924Y - Multi-stage combined dimond composite piece drill

Info

Publication number: CN2464924Y
Application number: CN 00257073
Authority: CN
Inventors: 王效勤; 徐西昌; 张文涛; 张政修; 赵杰文
Original assignee: 王效勤
Priority date: 2000-12-13
Filing date: 2000-12-13
Publication date: 2001-12-12
Anticipated expiration: 2010-12-13

Abstract

The utility model relates to a multi-stage combined diamond composite piece drill, which belongs to a drilling diamond composite piece drill under a coal mine well. The utility model is characterized in that the bottom surfaces of a two-stage drill body and a three-stage drill body are provided with oblique surfaces, three alloy supporting holes and six alloy supporting holes are respectively drilled on the oblique surfaces, diamond composite pieces are weld with alloy supporting poles into an integral body, the alloy supporting poles are respectively welded in the alloy supporting holes of the two-stage drill body and the three-stage drill body in an embedding mode, the bottom surface of a one-stage drill body is welded with three groups of diamond composite pieces, and the surfaces of the outer circles of the one-stage drill body, the two-stage drill body and the three-stage drill body are respectively welded with a plurality of column alloys. The utility model has the advantages of simple structure, safe and convenient operation, multi-stage combined one-time drilling, progressive drilling, high efficiency, fast speed and low cost. The utility model is widely used on drilling under the well.

Description

Multistage combined diamond compact bit

The multistage combined diamond compact bit of the utility model belongs to colliery down hole drill diamond compact bit.

The box-like carbide drill of rank groups in the prior art, its shortcoming are that drilling life of bit is short, need repeatedly carry bit change-over, the tired lock of operation, classification is bit change more, and labour intensity is big, the cost height, drilling efficiency is low, and danger is dangerous greatly, is unfavorable for the coal mine operation probing.

The purpose of the multistage combined diamond compact bit of the utility model provides a kind of multistage combined diamond compact bit, and it is to adopt the disposable boreholes drilling of multistage combination, rate of penetration is fast, and one-level is bored aperture, and secondary bores mesopore, three grades are bored macropore, and at first one-level is crept into, and secondly secondary creeps into, three grades are crept into, and drill bit adopts and creeps into high efficiency step by step, cost is low, labour intensity is low, and easy-to-operate is widely used in the colliery down hole drill.

The multistage combined diamond compact bit of the utility model takes following technology case to realize, it is to be fastened on the drill main body by key by three grades of bit bodys and secondary bit body, the one-level drill bit is connected and fixed by awl screw and drill main body, secondary bit body and three grades of bit body bottom surfaces are provided with the inclined-plane, be drilled with six alloy pillar holes on three grades of bit body inclined-planes, be drilled with three alloy pillar holes on the secondary bit body inclined-plane, diamond compact and alloy pillar are welded on one, alloy pillar welding-on respectively is connected in the alloy pillar hole of secondary drill bit upper body and three grades of bit bodys, three groups of diamond compacts are welded in one-level bit body bottom surface, and one-level bit body and secondary bit body and three grades of bit body outer round surface weld a plurality of cylinder alloys respectively.

The effect of the multistage combined multi-diamond compact bit of the utility model is simple in structure, easy-to-operate, the disposable boreholes drilling of multistage combination, rate of penetration is fast, creeps into high efficiency step by step, cost is low, labour intensity is low, and three grades are respectively the big-and-middle aperture of brill, is widely used in colliery down hole drill boring.

The multistage combined diamond compact bit of the utility model will describe in further detail in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of the multistage combined diamond compact bit of the utility model.

Fig. 2 is the lateral view of the multistage combined diamond compact bit of the utility model.

Fig. 3 is the alloy pier construction schematic diagram of the multistage combined diamond compact bit of the utility model.

Fig. 4 is that the one-level bit body of the multistage combined diamond compact bit of the utility model is to view.

2-three grades of bit body 3-alloys of 1-drill main body pillar, 4-secondary bit body, 5-one-level bit body, 6-diamond compact, 7-key, 8-cylinder alloy

With reference to Fig. 1; 2; 3; 4; the multistage combined diamond compact bit of the utility model; it is to be connected one by key 7 with drill main body 1 with secondary bit body 4 by three grades of bit bodys 2; one-level bit body 5 is connected in one by awl screw and drill main body 1; secondary bit body 4 and three grades of bit body 2 bottom surfaces are provided with the inclined-plane; be drilled with six alloy pillar holes on three grades of bit body 2 inclined-planes; be drilled with three alloy pillar holes on secondary bit body 4 inclined-planes; diamond compact 6 and alloy pillar 3 are welded in one; alloy pillar 3 difference welding-ons are in the alloy pillar hole of secondary bit body 4 and three grades of bit bodys 2; three groups of diamond compacts 6 are welded in one-level bit body 5 bottom surfaces; the outer round surface of one-level bit body 5 and secondary bit body 4 and three grades of bit bodys 2 welds a plurality of cylinder alloys 8 respectively, 8 pairs of wear-resisting effects of bit body protection of diamond compact 6 and cylinder alloy.

The embodiment of the multistage combined diamond compact bit of the utility model; it is to be connected one by three grades of bit bodys 2 and secondary bit body 4 by key 7 and drill main body 1; one-level drill bit 5 is connected in one by awl screw and drill main body 1; the bottom surface of secondary bit body 4 and three grades of bit bodys 2 is provided with the inclined-plane; be drilled with six alloy pillar holes on three grades of bit body 2 inclined-planes; be drilled with three alloy pillar holes on secondary bit body 4 inclined-planes; diamond compact 6 is welded on one with alloy pillar 3; alloy pillar 3 difference welding-ons are in the alloy pillar hole of secondary bit body 4 and three grades of bit bodys 2; three groups of diamond compacts 6 are welded in one-level bit body 5 bottom surfaces; the outer round surface of one-level bit body 5 and secondary bit body 4 and three grades of bit bodys 2 welds a plurality of cylinder alloys 8 respectively, and 8 pairs of protections of diamond compact 6 and cylinder alloy bit body has wear-resisting effect.

Claims

1, a kind of multistage combined diamond compact bit, it is by drill main body (1) and alloy pillar (3) and diamond compact (6), it is characterized in that three grades of bit bodys (2) and secondary bit body (4) are connected one by key (7) and drill main body (1), one-level bit body (5) is connected one by awl screw and drill main body (1), secondary bit body (4) and three grades of bit bodys (2) bottom surface are provided with the inclined-plane, three grades of bit bodys (2) are drilled with six alloy pillar holes on the inclined-plane, secondary bit body (4) is drilled with three alloy pillar holes on the inclined-plane, diamond compact (6) is welded on one with alloy pillar (3), alloy pillar (3) difference welding-on is in the alloy pillar hole of secondary bit body (4) and three grades of bit bodys (2), three groups of diamond compacts (6) are welded in one-level bit body (5) bottom surface, and one-level bit body (5) and secondary bit body (4) weld a plurality of cylinder alloys (8) respectively with three grades of bit bodys (2) outer round surface.