CN202047751U

CN202047751U - Percussion drilling tool

Info

Publication number: CN202047751U
Application number: CN2011200135640U
Authority: CN
Inventors: 王安劳; 王云飞; 王娟云
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-12
Filing date: 2011-01-12
Publication date: 2011-11-23
Anticipated expiration: 2021-01-12

Abstract

The utility model discloses a percussion drilling tool for sinking a shaft and drilling a hole. The percussion drilling tool is mainly formed by a drilling tool, a movable core cap, a movable core shaft and a percussion blade, wherein the movable core cap is arranged at the tail part of the drilling tool; the movable core shaft is provided with a plummer block and is arranged in the movable core cap; and the percussion blade is arranged at the head part of the drilling tool. The percussion drilling tool is structurally characterized in that the periphery of the upper part of the movable core cap is provided with a flange plate; the inner wall of the movable core cap is symmetrically provided with two bosses; both ends of the movable core cap are respectively provided with an upper cover and a bottom cover; the upper cover is provided with an oil filling hole, a center round hole and a sealing ring; the bottom cover is provided with an oil drain hole; the upper end of the movable core shaft passes through the center round hole of the upper cover through the sealing ring; the lower part of the plummer block of the movable core shaft is provided with a reverse rotation prevention ratchet with symmetrical clips; the clips of the reverse rotation prevention ratchet are clamped on the two bosses on the inner wall of the movable core cap; and the percussion blade at the head part of the drilling tool is a single blade. The percussion drilling tool has the advantages of high advance rate, high efficiency and high quality of the formed hole.

Description

A kind of impact drilling tool

Technical field

The utility model relates to a kind of sinking shaft, boring instrument, specifically a kind of sinking shaft, boring impact drilling tool.

Background technology

The mode of well-digging at present,, boring driving is mainly by two kinds.A kind of is that swinging is crept into, and a kind of is percussion drilling.The structure of percussion drilling mainly is to be made of rig, wire rope, drilling tool, and the mode of driving is the wire rope drilling tool that plays, and under rig drives, pumps in mud, and impinge upon earth strata is crept into.Its employed drilling tool mainly contains core drill and solid brill.The impact head of drilling tool has the flat shape of the mouth as one speaks of round end, yi word pattern and cross, and the impact sword is a twolip, and twolip adapts to the impact cutting, incompatible rotation backing-off cutting, and also incompatible impact adds the rotary mode of creeping into.The drilling tool afterbody is equipped with the dnockout core cap, the dnockout core cap is an open type, the center of dnockout core cap is installed with the dnockout core axle of tape spool platform, between the pillow block of dnockout core axle and dnockout core cap pad is installed, because the dnockout core axle all is immersed in the mud when operation, the wearing and tearing aggravation, it is dumb to cause the dnockout core axle to rotate, and causes driving speed slow, the energy consumption height, efficient is low, and hole quality is poor.

Summary of the invention

It is fast that task of the present utility model provides a kind of driving speed, efficient height, the impact drilling tool that hole quality is good.

For realizing above-mentioned task, technical solution of the present utility model is:

A kind of impact drilling tool, mainly by drilling tool, the dnockout core axle that has pillow block in the dnockout core cap of drilling tool afterbody and the dnockout core cap, the impact sword of drilling tool head constitutes, its design feature is in periphery, dnockout core cap top flange to be set, on dnockout core cap inwall, be symmetrical arranged two boss, at dnockout core cap two ends loam cake and bottom are set respectively, last covering oil filler point and sealing ring are set, drain oil is set on bottom, the sealing ring of loam cake is passed in dnockout core axle upper end, pillow block bottom at the dnockout core axle is provided with the anti-reversing ratchet with symmetrical clamp, the clamp of anti-reversing ratchet is stuck on the dnockout core cap inwall on symmetrically arranged two boss, and the impact sword of drilling tool head is a single-blade.

Described a kind of impact drilling tool is on the top of dnockout core axle pressure bearing to be set, and sets gradually pressure bearing and pallet in the anti-reversing ratchet bottom of dnockout core axle, at the bottom center set screw and locking nut is set.

It is fast to the utlity model has driving speed, efficient height, the advantage that hole quality is good.

Description of drawings

Fig. 1 is the main TV structure schematic diagram of the utility model drilling tool.

Fig. 2 is the sectional structure schematic diagram of the utility model dnockout core cap.

Fig. 3 is the structural representation of the anti-reversing of the utility model ratchet.

Fig. 4 is the structural representation of the bottom of the utility model dnockout core cap.

Fig. 5 is the structural representation of looking up of the utility model drilling tool head.

Fig. 6 is the structural representation that the utility model dnockout core cap is overlooked.

The specific embodiment

As shown in Figure 1, a kind of impact drilling tool, main cross drilling tool 1 by intermediate hollow, the dnockout core axle 5 that has pillow block 6 in the dnockout core cap 3 of drilling tool 1 afterbody and the dnockout core cap 3, the impact sword 19 of drilling tool 1 head constitutes, at dnockout core cap 3 top peripheral solder flange 2, flange 2 usefulness bolts 18 and drilling tool 1 afterbody are fixed, on the inwall of dnockout core cap 3, be symmetrically welded two boss 4, at dnockout core cap 3 two ends loam cake 7 and bottom 14 are installed respectively, on loam cake 7, make oil filler point 16 and sealing ring 15 is installed, use the bolt shutoff after the oiling, on bottom 14, make drain oil 8, use the bolt shutoff, the sealing ring 15 of loam cake 7 is passed in the upper end of dnockout core axle 5, the anti-reversing ratchet 9 with a pair of symmetrical clamp 17 is installed in pillow block 6 bottoms at dnockout core axle 5, the clamp 17 of anti-reversing ratchet 9 is stuck on two boss 4 that are symmetrically welded on dnockout core cap 3 inwalls, and the impact sword 19 of drilling tool 1 head is made single-blade.One pressure bearing 10 is installed on the top of dnockout core axle 5, and setting pressure bearing 10 and pallet 11 successively in the bottom of the anti-reversing ratchet 9 of dnockout core axle 5 are installed set screw 13 and locking nut 12 at bottom 14 centers, and set screw 13 heads on pallet 11.

When rig promotes drilling tool 1, wire rope is tightened up, the while wire rope can produce the sth. made by twisting rotation round about with it, dnockout core axle 5 and the inner ring 24 that is installed in the anti-reversing ratchet 9 on the dnockout core axle 5 are rotated together, anti-reversing ratchet is grabbed 20 and block the teeth 22 of outer ring 25 under the elastic force effect of elastic filament 21, revolving force is passed to outer ring 25, and under the effect of clamp 17, boss 4, the wire rope revolving force is finally passed to dnockout core cap 3 makes drilling tool 1 produce rotation; When rig loosens wire rope, wire rope can produce with its sth. made by twisting and rotate to identical direction, make the inner ring 24 of the anti-reversing ratchet 9 of dnockout core axle 5 on being installed in dnockout core axle 5, to the opposite direction rotation of drilling tool 1 direction of rotation, inner ring 24 drives anti-reversing ratchet and grabs 20 rotations, the chamfered portion of the teeth 22 on outer ring 25, the anti-reversing of compressing ratchet grabs 20, and overcome the active force of elastic filament 21, making anti-reversing ratchet grab 20 is pressed into and grabs in the groove 23, make inner ring 24 and dnockout core axle 5 produce rotation, at this moment dnockout core cap 3 and drilling tool 1 do not produce reverse rotation, the reciprocal rotation of this of dnockout core axle 5, for drilling tool 1 rotates the necessary condition of having created again, wire rope constantly is tightened up and loosens like this, under the effect of anti-reversing ratchet 9, makes drilling tool 1 forever to a direction rotation.The impact sword 19 of drilling tool 1 head is a single-blade, and single-blade can produce slip when impinge upon earth strata, and the direction of slip is the side to facade, and the rotation backing-off cutting of single-blade also makes drilling tool 1 rotate to a direction.

Claims

1. impact drilling tool, comprise drilling tool, the dnockout core axle that has pillow block in the dnockout core cap of drilling tool afterbody and the dnockout core cap, the impact sword of drilling tool head, it is characterized in that: flange is set in periphery, dnockout core cap top, on dnockout core cap inwall, be symmetrical arranged two boss, at dnockout core cap two ends loam cake and bottom are set respectively, last covering oil filler point and sealing ring are set, drain oil is set on bottom, the sealing ring of loam cake is passed in dnockout core axle upper end, pillow block bottom at the dnockout core axle is provided with the anti-reversing ratchet with symmetrical clamp, the clamp of anti-reversing ratchet is stuck on the dnockout core cap inwall on symmetrically arranged two boss, and the impact sword of drilling tool head is a single-blade.

2. a kind of impact drilling tool according to claim 1, it is characterized in that: the pillow block top at the dnockout core axle is provided with pressure bearing, anti-reversing ratchet bottom at the dnockout core axle sets gradually pressure bearing and pallet, at the bottom center set screw and locking nut is set.