CN205955649U - What complete hard rock was got to brill digs drilling tool soon - Google Patents

Abstract

The utility model relates to a what complete hard rock was got to brill digs drilling tool soon, say and ten four at least picks that this drilling tool body be the tube -shape including drilling tool body, gyration, the pick includes outer pick and interior pick, and the one end of drilling tool body is equipped with the outer pick and the interior pick of the crisscross setting of round, the every interval 50mm in outer lane of drilling tool body is equipped with a gyration and says, pick cutting head is 63 for the angle of perpendicular, the length of drilling tool body is 1500mm. The utility model discloses can improve the stake of construction of rotary drilling rig efficiency and bored concrete pile one -tenth and satisfy the designing requirement, it is extravagant to reduce the manpower financial resources.

Description

Drill through the rotary drill tools of complete hard rock

Technical field

This utility model is related to a kind of rotary drill tools, specifically drills through the rotary drill tools of complete hard rock.

Background technology

Bored concrete pile presses its forming hole method difference at present, is broadly divided into cast-in-situ bored pile, driven cast-in-place pile, manually digging hole perfusion Stake, explosive expansion bored concrete pile etc..Wherein cast-in-situ bored pile is usually used twist bit hole forming method because the machinery of pore-forming is different, diving bores Machine hole forming method, percussive drill hole forming method, rotary drilling method etc..In the filling pile construction of embedding rock, and when rock stratum is harder, rotary drilling Hole method obtains relatively broad application, but it is difficult to obtain more complete rock sample, particularly hard during the construction of common drill bit Rock stratum in, it is difficult to judge that nature of ground during the embedding rock of bored concrete pile and embedding rock are deep therefore in the case that stratum is more complicated Whether degree meets design requirement.

Content of the invention

This utility model is intended to overcome the defect of prior art, provides a kind of rotary drill tools drilling through complete hard rock, can carry High rotary drilling rig efficiency of construction and bored pile piling meet design requirement, reduce manpower financial capacity and waste.

In order to solve above-mentioned technical problem, this utility model is realized in：

A kind of rotary drill tools drilling through complete hard rock it is characterised in that：Including drill body, slalom course and at least 14 Pick, this drill body is tubular, and pick includes outer pick and interior pick, and one end of drill body is provided with what a circle was crisscross arranged Outer pick and interior pick, the outer ring of described drill body is provided with a slalom course at interval of 50mm.

The described rotary drill tools drilling through complete hard rock it is characterised in that：Described pick bit is with respect to vertical Angle is 63 °.

The described rotary drill tools drilling through complete hard rock it is characterised in that：The length of described drill body is 1500mm.

The beneficial effects of the utility model are：Improve rotary digging drill bit and enter the guidance quality of rock it is ensured that the perpendicularity of bored concrete pile, carry The abrasion strength resistance of high rotary digging drill bit, reduce loss, can effectively drill through complete rock sample, effectively judge nature of ground and enter rock Depth, it is ensured that engineering quality of pile, improves the work efficiency of piles set into rock rotary digging construction, shortens construction period, reduces construction cost.

Brief description

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：

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

Fig. 2 looks up the structural representation in direction for Fig. 1.

Specific embodiment

As shown in Figure 1-2：A kind of rotary drill tools drilling through complete hard rock, including drill body 1, slalom course 2 and 14 Pick 3, increased the probability that pick center alloy grinds, effective protection pick denticle, loss is fallen below minimum, this drilling tool Body is tubular, and pick includes outer pick 31 and interior pick 32, and one end of drill body is provided with the outer pick that a circle is crisscross arranged With interior pick, the outer ring of described drill body is provided with a slalom course at interval of 50mm, increased drilling efficiency, decrease pick Loss；Described pick bit is 63 ° with respect to the angle of vertical, increased the alloy stress probability of pick, protects simultaneously Denticle and toothholder；The length of described drill body is 1500mm, increased the probability of fracturation, facilitates coring.

Claims (3)

1. a kind of rotary drill tools drilling through complete hard rock it is characterised in that：Cut including drill body, slalom course and at least 14 Tooth, this drill body is tubular, and pick includes outer pick and interior pick, and it is outer that one end of drill body is provided with that a circle is crisscross arranged Pick and interior pick, the outer ring of described drill body is provided with a slalom course at interval of 50mm.

2. the rotary drill tools drilling through complete hard rock according to claim 1 it is characterised in that：Described pick bit is relatively Angle in vertical is 63 °.

3. the rotary drill tools drilling through complete hard rock according to claim 2 it is characterised in that：The length of described drill body For 1500mm.