CN2106886U

CN2106886U - Dry-type hollow drill bit of diamond

Info

Publication number: CN2106886U
Application number: CN 91228779
Authority: CN
Inventors: 潘奇勋; 唐占军
Original assignee: HUANGHE ABRASIVE TOOLS FACTORY HENAN PROV
Current assignee: HUANGHE ABRASIVE TOOLS FACTORY HENAN PROV
Priority date: 1991-11-22
Filing date: 1991-11-22
Publication date: 1992-06-10

Abstract

The utility model provides a dry-type hollow drill bit of a diamond, being used for drilling holes in the construction of the building operation, the house reconstruction, the pipelines laying, the municipal construction, and being used for sampling by the building quality supervision unit. In the drill bit, the lower end of a drill body is welded with drill teeth which are coated and inlaid with diamonds by the alloy with a certain abrasive resistance, and the upper end of the drill body is welded with a drill shank. Chip removal holes and chip removal crest lines are arranged around the drill body. The drill teeth form a circular ring thin-wall segment teeth shape. The design solves the problem of dust and chip block and difficult chip removal at the time of drilling. Thus the solid waste in the hollow thin-wall cavity of the drill body can be easily removed. The shape of the drill shank is a triangle, and the practicability is strong.

Description

Dry-type hollow drill bit of diamond

The utility model relates to a kind of drill bit, particularly a kind of dry hollow diamond drilling bit, it is applicable to building operations, building reconstruction, the usefulness of the wall boring in the construction such as vapour, water, oil system pipeline laying and urban construction also can be for the usefulness of construction quality supervision unit sample.

At present, China building and relevant unit in charge of construction are in pipeline construction and punching are constructed, because the Churn drill vibrations are big, the noise height, bore diameter is little, maximum drilling diameter is 19mm, even beating the Kongzui major diameter, electricity consumption also has only 27mm, and in the building operations the general water pipe diameter of pipeline construction all more than 32mm, and Churn drill and electric hammer are when spiling to wall, because the impact endurance test shock that is had is easily smashed wall two ends face peripheral part, building unit is had only use heavy hand hammer and hammer drill.Manually punch with hand hammer and hammer drill, its not only time-consuming taking a lot of work, the labour intensity height, it is big to pay muscle power, and the punching time is long, of poor quality, behind the pipeline construction, also will manually repair once more and surfacing.

The purpose of this utility model is a kind of light and flexible of developing at the backward drilling tool of industries such as China's building, the dry hollow diamond drilling bit that rate of penetration is fast and drilling quality is high.It not only can replace in the past the sort of stupid, slow, poor laggard tool, to alleviate numerous construction workers' labour intensity, numerous construction workers are freed from heavy manual labor, but also can accelerate the engineering construction progress, increase work efficiency, improve engineering construction quality.

The utility model is achieved in that dry hollow diamond drilling bit is by boring tooth 1, drill body 3, turnbuckle 5 and drillstock 6 compositions.The lower end of drill body 3 is being welded certain abrasion resistance alloy and is being plated adamantine brill tooth 1, and it has certain abrasion resistance, make it to creep into sharp, stable performance, it is little that drill bit consumes, the drilling quality height.Drillstock 6 is being welded in the upper end of drill body 3, and turnbuckle 5 is arranged on the drillstock 6.Around the drill body 3 chip-removal hole 2 and chip removal crest line 4 are arranged, drill body 3 is the hollow thin-wall cavity.

The utility model can be achieved in that boring tooth 1 saves dentation for the annular thin-walled, and this design is laborsaving, the saving of labor, save time, and can reduce most of area of cut and workload, and resistance is little when creeping into, and chip removal is fast.Chip-removal hole 2 around the drill body 3 be shaped as oblique slotted hole, to realize the inner break flour of cleaning, be convenient to the real core waste material in the removal drill body 3 hollow thin-wall cavitys.Chip removal crest line 4 is the spiral crest line of projection, and it has solved drill bit break flour when creeping into and has stopped up the problem of chip removal difficulty.Drillstock 6 be shaped as triangle, be convenient to install and use with common Electric portable drill, make it to prevent loosening relatively.

Good effect of the present utility model is:

1, can on wall, bore hole than the big 3-5mm of diameter of steel tube, during punching vibrations little, noise is low, the drilling quality height, wall need not be repaired and surfacing behind the pipeline construction.

2, creep into sharply, resistance is little, and chip removal is rapid, can bore hole at any angle, highly versatile on wall.

3, bit life is long, and high efficiency was made a call to a hole in past 0.5-1 hour, uses the dry hollow diamond drilling bit punching now, can punch in 1 minute, is 30-50 times of the sort of drilling tool in the past.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is a shape and structure schematic diagram of the present utility model.

Fig. 2 is a upward view of the present utility model.

Fig. 3 is the sectional view of drill body 3 of the present utility model.

Fig. 4 is the sectional view of drillstock 6 of the present utility model.

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, during use, drillstock 6 is stuck on the chuck of Electric portable drill, connect power supply, holed in the position of desire boring.Because the lower end of drill body 3 is being welded certain abrasion resistance alloy and plated adamantine brill tooth 1, that bores tooth 1 is shaped as annular thin-walled joint dentation, so cutting is sharp when creeping into, resistance is little.Chip-removal hole 2 around the drill body 3 and chip removal crest line 4 be oblique slotted hole and protruding spiral crest line, solved when drill bit creeps into can only the water chip removal problem.So resistance is little when using dry hollow diamond drilling bit to creep into, chip removal is fast, is convenient to clear up inner break flour, is convenient to the real core waste material in the removal drill body 3 hollow thin-wall cavitys.Drillstock 6 be shaped as triangle, be convenient to install and use with common Electric portable drill, make it to prevent loosening relatively.Turnbuckle 5 is arranged on the drillstock 6, and it and the supporting use of fixed bracket can make the utility model to other constructional materials drilling constructions such as rock, pottery, granite, marble, concrete.

Claims

1, a kind of by boring tooth 1, drill body 3, the dry hollow diamond drilling bit that turnbuckle 5 and drillstock 6 are formed, it is characterized in that: welding certain abrasion resistance alloy in the lower end of drill body 3 and plating adamantine brill tooth 1, drillstock 6 is being welded in the upper end, turnbuckle 5 is arranged on the drillstock 6, have row to belong to hole 2 and chip removal crest line 4 around the drill body 3, drill body 3 is the hollow thin-wall cavity.

2, dry hollow diamond drilling bit according to claim 1 is characterized in that: bore tooth 1 and be annular thin-walled joint dentation.

3, dry hollow diamond drilling bit according to claim 1 is characterized in that: chip-removal hole 2 be shaped as oblique slotted hole.

4, dry hollow diamond drilling bit according to claim 1 is characterized in that: chip removal crest line 4 is the spiral crest line of projection.

5, dry hollow diamond drilling bit according to claim 1 is characterized in that: drillstock 6 be shaped as triangle.