CN202209146U - Reamer - Google Patents

Reamer Download PDF

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Publication number
CN202209146U
CN202209146U CN2011202421172U CN201120242117U CN202209146U CN 202209146 U CN202209146 U CN 202209146U CN 2011202421172 U CN2011202421172 U CN 2011202421172U CN 201120242117 U CN201120242117 U CN 201120242117U CN 202209146 U CN202209146 U CN 202209146U
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CN
China
Prior art keywords
reamer
cutting knife
piston
piston rod
cylinder
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Active
Application number
CN2011202421172U
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Chinese (zh)
Inventor
孙文
岳大昌
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CHENGDU SIHAI GEOTECHNICAL ENGINEERING Co Ltd
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CHENGDU SIHAI GEOTECHNICAL ENGINEERING Co Ltd
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Priority to CN2011202421172U priority Critical patent/CN202209146U/en
Application granted granted Critical
Publication of CN202209146U publication Critical patent/CN202209146U/en
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Abstract

The utility model discloses a reamer, comprising a cutter and a reamer main body, wherein the reamer main body includes a cylinder drive device; the cutter is telescopic; one end of the cutter is hinged with the reamer main body while the other end thereof is hinged with a piston connecting rod of the cylinder drive device; the cylinder drive device has a cylinder chamber formed by the reamer main body, and a piston which moves in the cylinder chamber by using compressed air as power; the piston is sequentially connected with a piston rod, a base and a support rod so as to drive the cutter to stretch out or to draw back; a section of strip teeth, which are arranged along the axial direction of the piston rod and used for preventing the piston rod from rotation, are arranged on the surface of the piston rod; and the strip teeth are in axial sliding fit with a tooth socket on the inner wall of the reamer main body. According to the reamer disclosed by the utility model, compressed air is used as stretching out or drawing back power for the cutter; the reamer main body supports all the components to be compact and intensive, thus reducing processing accessories; the strip teeth arranged along the axial direction of the piston rod realize axial stability of the overall reamer, so that the cutter can stretch out or draw back conveniently and flexibly without movement dead point; in addition, the compressed air is used as stretching out or drawing back drive force of the cutter, so that rigid collision due to pull rod control is avoided and the cutter is protected.

Description

Reamer
Technical field
The invention belongs to boring mechanic and manufacture and design the field, especially belong to a kind of reamer with Telescopic.
Background technology
In building, bridge and other engineering construction, usually relate to the problem of strengthening anchoring stability, because the development of highrise building, speedway, high-speed railway, viaduct is also increasingly high to the supporting capacity requirement of ground.At present a large amount of friction piles that adopt comprise: castinplace pile, draw anchoring pile, post etc., the frictional force of pile body and ground determines the supporting capacity of pile body.For addressing this problem, developed not isometrical castinplace pile in the construction at present, drawn anchoring pile, column method, promptly at castinplace pile, draw and adopt the reducing hole in anchoring pile, the buried ground of post, it is stable to utilize the bigger frictional force of reducing hole and ground to strengthen anchoring.
Mountain highway, railway and the construction of hydropower stations cause artificial instable slope, must carry out consolidation process to unsettled side slope for safety during runing, and all are designed to prestress anchorage cable usually and anchor draws anti-slide pile structure.Along with urbanization process is accelerated, metro construction especially subway station construction generally all adopts the construction of pick open type, and the foundation ditch of subway station, highrise building and multilayer underground garage is all darker, adopts the supporting of anchor anchor usually.Stressed particularly crucial at these processing mode stream lines (bar), the reaming of anchorage cable anchoring section improves bigger to the anchor cable bearing capacity.Can enlarge the contact area of adhesives and hole wall after the reaming,, can improve anchored force greatly after the reaming, promptly keep the constant drilling depth that reduces of anchored force if hole depth is constant.
Present various foundation pouring stakes hole, draw the anchoring pile hole to adopt the probing hole forming method usually, on datum hole, adopt the segmentation reaming to realize reducing.The segmentation reaming is accomplished by reamer and is realized, existing reamer kind is more, adopts reaming bite Collapsible structure more, and Telescopic is realized through pull bar.ZL200910209002.0 discloses a kind of through the flexible device of programme-control pull bar realization reaming bite (scraping trowel), its complex structure, and the control system requirements is high.
In existing rig; For the drilling cuttings under will cutting is removed; Rig usually adopts compressed air that drilling cuttings is blown out, and self disposes compressed air conveying system rig, does not also have correlation technique open at present as the flexible driving force of reaming bite compressed air.
Summary of the invention
The present invention discloses a kind of reamer according to the deficiency of prior art.The problem that the present invention will solve provides a kind of compressed air that utilizes as the flexible reamer of drive force reaming cutting knife; The present invention also solved the reaming cutting knife when reaming is worked and the hard crag direct collision cutting knife that possibly cause damage, the present invention has also solved from the technical problem that to the hole outside, reaches ascending reaming gradually at the bottom of the hole.
The present invention realizes through following technical scheme:
Reamer comprises cutting knife and reamer body, and wherein: said reamer body comprises a cylinder driver; Said cutting knife is scalable, and one of which end and reamer body are hinged, and the piston rod of the other end and cylinder driver is hinged.
Further said cylinder driver constitutes cylinder chamber by the reamer body, and also having in cylinder chamber with the Compressed Gas is the piston that power moves, and piston is linked in sequence, and to drive cutting knife flexible for piston rod, bearing and pole.
Further said piston rod surface has one section along the axial arranged bar tooth that prevents that piston rod from rotating of piston rod, the teeth groove axial sliding fit of bar tooth and reamer inner body wall.
The slagging channel that the relative both sides of further said reamer body outer wall have the plane to form.Said cutting knife has two groups, is separately positioned on the body outer wall relatively in addition both sides vertical with the slagging channel plane.
Said cutting knife one end is hinged in the groove of body outer wall.Have in the groove of said body outer wall and connect the earth discharging hole that outer wall is communicated with cylinder.
Said reamer body has inlet channel and the exhaust passage that connects the reamer body wall respectively.The primary inlet port of drilling rod interface be located at the reamer body on the cylinder intake passage of an end communicate; The inlet channel other end in the reamer inner body wall away from tool joint one side, when shrinking fully under the dead-centre position of piston near cutting knife; Under the piston stop of exhaust passage one end when the reamer inner body wall is opened near cutting knife fully, on the circular cone inclined-plane of the exhaust passage other end below reamer body deslagging plane.
Said cutting knife outward flange has tooth, and outward flange one end tooth is in tilted layout, and it is inboard that the hinged pole of piston rod bearing of cutting knife and cylinder driver is hinged on the tooth inclined plane.
The reamer body is connected with drilling rod through transit joint.
When the present invention works and the supporting use of down-the-hole drill, with compressed air as the power that moves on the piston with deslagging, motor drives drilling rod rotary cutting; When at the bottom of the reamer patchhole, under the compressed-air actuated effect of drilling rod thrust and piston front, piston moves to the drilling rod direction; Cutting knife expands outwardly under piston rod and connecting rod driving gradually; The slag bits that downcut are discharged to outside the hole through the casting groove, and when piston moved on to, cutting knife opened and reaches the limit; Rest on highest order at the gas pressure lower piston, air pressure generally gets final product greater than 170kg.Rig is to Way out pull drilling rod gradually, and reaming is proceeded thereupon, until reaching designing requirement.
After reaming is intact, continue air feed in the hole, calming the anger blows off the soil in the reamer cutting knife groove through small de-air hole, stops air feed then, the rig drilling rod of pulling back, and cutting knife is got back to original position under the restriction of former hole wall, and whole reamer is regained with drilling rod.
In the reaming process, like hard crag, because the compressibility of air in the cylinder, cutting knife can be squeezed and suitably bounce back, and has avoided the rigidity collision of pull bar control, has protected cutting knife.
Helpfulness of the present invention: the present invention adopts the deslagging compressed air that passes through usefulness at present as the flexible driving force of cutting knife, under the cooperation of down-the-hole drill, has realized the reaming construction operation; The reamer body is the main body that supports each member, and the structure of interior sky is as cylinder chamber, the ash pit that outer wall is arranged, and the cutting knife hinge recess partly connects the inlet channel of reamer body wall and compactness that the reamer structure has been realized in the exhaust passage, intensive, and it is few to process accessory; Need not to increase control fitting along the axial arranged teeth groove axial sliding fit structure that prevents bar tooth that piston rod rotates and reamer inner body wall of piston rod and realized that whole reamer axially stablizes; The smear metal contact surface that cutting knife outward flange one end tooth is in tilted layout and has increased cutting knife has improved the smear metal ability; The piston rod of cutting knife and cylinder driver is hinged on inboard, tooth inclined plane and makes the flexible dead point of not moving of cutting knife, and is flexible convenient, flexible; The present invention adopt compressed air as cutting knife flexible and cutting driving force, when meeting hard crag, because the compressibility of air in the cylinder, the cutting knife suitably retraction that can be squeezed has been avoided the rigidity collision of pull bar control, effectively protects cutting knife.
Description of drawings
Fig. 1 is reamer overall structure of the present invention and part sectional structure sketch map;
Fig. 2 is Figure 1A A face cross section structure sketch map;
Fig. 3 is Figure 1B B face cross section structure sketch map;
Fig. 4 is Fig. 1 CC face cross section structure sketch map;
Fig. 5 is a drilling rod transit joint cross section structure sketch map of the present invention;
Fig. 6 is reamer body construction of the present invention and part sectional structure sketch map;
Fig. 7 is a cutting knife side structure sketch map of the present invention;
Fig. 8 is an end sealing ring plane structure sketch map of the present invention;
Fig. 9 is a bearing side structure sketch map of the present invention;
Figure 10 is a bearing plane structure sketch map of the present invention;
Figure 11 is a piston rod shape and structure sketch map of the present invention.
Among the figure, the 1st, the transit joint connector, the 2nd, reamer body, 2a are reamer body cylinder chambers, 2b is a reamer inner body wall teeth groove; 2c is reamer body and cutting knife hinge hole, and 2d is a reamer body cutting knife mount grooves, the 3rd, and cutting knife, 3a are cutting knife smear metal teeth, 3b is cutting knife and reamer body hinge hole; 3c is cutting knife and pole hinge hole, and 3d is the tooth that the cutting knife end slope is arranged, the 4th, and pole, the 5th, bearing; 5a is bearing and piston rod connecting hole, and 5b is bearing and pole hinge hole, the 6th, piston end sealing trim ring, 6a be on the reamer body with the bolt connecting hole of end sealing trim ring; 6b be on the end sealing trim ring with the bolt connecting hole of reamer body, the 7th, cylinder seal circle, the 8th, inlet channel, the 9th, exhaust passage; 9a is gas outlet, deslagging exhaust passage, the 10th, and cutting knife hinge recess deslagging steam vent, the 11st, piston, the 12nd, gas distributing chamber; The 14th, cylinder head, the 15th, piston rod, 15a are axial arranged teeth, the 16th, the deslagging plane.
The specific embodiment
Below in conjunction with the specific embodiment and accompanying drawing the present invention is further specified; The specific embodiment and accompanying drawing are further specifying the principle of the invention; Do not limit the present invention in any way, or similar techniques identical with the present invention all do not exceed the scope of the present invention's protection.
In conjunction with Fig. 1 to Figure 11,
Fig. 1 is a reamer overall structure sketch map, and the first half is a sectional view among the figure, and the latter half is reamer external structure sketch map, and is as shown in the figure, and reamer comprises cutting knife 3 and reamer body 2, and reamer body 2 comprises a cylinder driver; Cutting knife 3 one ends and reamer body 2 are hinged, and an end of the other end and pole is hinged, and the bearing of pole and other end cylinder driver is hinged.
Reamer is in when work and the supporting use of down-the-hole drill, and reamer can pass through transit joint connector 1 and be connected with transit joint, and transit joint is connected with drilling rod again, also can design drilling rod and directly be connected with reamer.Reamer of the present invention is adapted to the down-the-hole drill equipment through the Compressed Gas deslagging; Cylinder driver is to utilize the boring Compressed Gas to promote cutting knife 3 to stretch, and the said cutting knife 3 flexible cutting knifes 3 that are meant serve as to support the process of opening or shrinking with one of which end and reamer body 2 jointed shafts.
As stated; Cylinder driver is to utilize the boring Compressed Gas to promote the cutting knife 3 flexible drive units of realizing reaming; Common cylinder also can be realized driving; Cylinder driver of the present invention constitutes cylinder chamber 2a by reamer body 2, and also having in cylinder chamber 2a with the Compressed Gas is the piston 11 that power moves, and piston 11 is linked in sequence, and to drive cutting knifes 3 flexible for piston rod 15, bearing 5 and pole 4.
During work, reamer is under contraction state at the bottom of (not air inlet) patchhole, under drilling rod thrust and the piston 11 compressed-air actuated effects in back; Piston 11 moves to the drilling rod direction, and cutting knife 3 expands outwardly under piston rod 15, bearing 5 and pole 4 drive gradually, and (groove) 16 is discharged to outside the hole drilling cuttings of cutting-out through the casting plane; When piston 11 moved on to, cutting knife 3 opened and reaches the limit, rests on highest order at gas pressure lower piston 11; Keep cutting knife 3 in highest order, air pressure generally gets final product greater than 170kg.This reamer this moment can be with rig to Way out pull drilling rod gradually, and reaming is proceeded thereupon, and reamer can expand the reaming section of maximum diameter of hole and designing requirement length.
In conjunction with Fig. 1, Fig. 3, Fig. 4, Fig. 6 and Figure 11; Fig. 1 is a reamer overall structure sketch map; Fig. 3 is Figure 1B B face cross section structure sketch map, and Fig. 3 has represented that bar tooth 15a cooperates the structure of cross section part with the teeth groove 2b of reamer body 2 inwalls, and Fig. 4 is Fig. 1 CC face cross section structure sketch map; Fig. 4 has represented not have the piston rod 15 of bar tooth 15a to cooperate the structure of cross section part with the teeth groove 2b of reamer body 2 inwalls; As shown in the figure, influence the smear metal of cutting knife 3 function in order to make cylinder driver piston 11 and piston rod 15 reliable and stable, not twist; Piston rod of the present invention 15 surfaces have one section along the piston rod 15 axial arranged bar tooth 15a that prevent that piston rod 15 from rotating, the teeth groove 2b axial sliding fit of bar tooth 15a and reamer body 2 inwalls.At reamer body 2 rear end inwalls one section teeth groove 2b is set, teeth groove 2b structure and bar tooth 15a structure matching get final product, teeth groove 2b length greater than bar tooth 15a length so that bar tooth 15a can slide vertically therein.
During installation, at first the bar tooth 15a with piston rod 15 places along teeth groove 2b, installs joint ring 7 before the placement, at piston rod 15 1 end fixed pistons 11, then cylinder cover plate 14 is screwed in the cylinder end and fixes; Twist fixed end sealing trim ring 6 at piston rod 15 other ends through bolt; Connect bearing 5 and pole 4 more successively, connect pole 4 cutting knifes 3 with bolt again and get final product with reamer body 2.
Soil discharge channel as shown in Figure 2, that the relative both sides of reamer body 2 outer walls of the present invention have plane 16 to form.Soil discharge channel constitutes after by two planes that reamer body 2 exterior circular columns mill, the Bao smear metal forms, and the drilling cuttings under the reamer smear metal is stranded in the casting groove and under compressed-air actuated effect, blows out outside the groove.
In conjunction with Fig. 1, Fig. 2 and Fig. 6, as shown in the figure, cutting knife 3 has two groups, is separately positioned on the body 2 outer walls relatively in addition both sides vertical with the casting groove of plane 16 formation.Two planes 16 and two groups of cutting knifes 3 of also being the casting groove are separately positioned on around reamer body 2 outer walls.
In order to make cutting knife 3 more firmly stable when rotating smear metal, reamer body 2 outer walls are provided with two relative groove 2d, and cutting knife 3 one ends are hinged in the groove 2d of body 2 outer walls.Cutting knife 3 scalable contractions are returned in the groove 2d when the pumpback reamer.
In conjunction with Fig. 1 and Fig. 6; Have in the groove 2d of body 2 outer walls and connect the hole 10 that outer wall is communicated with cylinder; 10 outer ends, hole are positioned at groove 2d bottom, and the other end is communicated with cylinder chamber 2a, and the drilling cuttings that the compressed air in the cylinder can purge in the groove 2d makes cutting knife 3 fold return more easily.
In conjunction with Fig. 1, Fig. 2 and Fig. 6, said reamer body 2 has the inlet channel 8 and exhaust passage 9 of half perforation reamer body, 2 walls.Compressed air is controlled by the operating desk on the down-the-hole drill during work; In the time of at the bottom of reamer is delivered to the hole through jointed rod, open admission valve, compressed air is delivered to compressed air by the mesopore of drilling rod the gas distributing chamber at cylinder head top; Compressed air is delivered to compressed air in the cylinder chamber of reamer body by four air inlets 8 on the reamer then; The thrust of compressed air and drilling rod is moved piston on gradually, when piston moves to stop, and waste gas four steam vents 9 and 2 cutter groove mud holes 10 from the reamer body cylinder wall; Waste gas is discharged to 9a outside the hole, and the deslagging plane (groove) of the drilling cuttings that smear metal is got off through reamer body both sides is discharged to outside the hole.
In conjunction with Fig. 1 and Fig. 7, as shown in the figure, cutting knife 3 fronts are one the list structure of tooth 3a and 3d to be arranged; The list structure longitudinal section is a rectangle, and rectangle has tooth curved on one side, and cutting knife 3 has and hinged hole 3b of reamer body 2 and the hole 3c hinged with pole 4; Outward flange one end tooth 3d is in tilted layout, and the tooth 3d that is in tilted layout has increased the smear metal contact surface of cutting knife, has improved the smear metal ability; It is inboard that the piston rod (containing pole and bearing) of cutting knife 3 and cylinder driver is articulated in tooth 3d inclined plane, promptly inboard in tooth 3d inclined plane with the hinged hole 3c of pole 4, and the piston rod of cutting knife 3 and cylinder driver is hinged on inboard, tooth 3d inclined plane makes the flexible dead point of not moving of cutting knife; Flexible convenient, flexible; In order to make the cutting knife 3 flexible dead points of not moving, the distance between both sides cutting knife 3 and reamer body 2 hinge positions is greater than the distance of bearing 5 and both sides pole 4 hinge positions, like this after cutting knife 3 shrinks returns; Pole 4 and cutting knife 3 start the dead point of not moving not point-blank once more.
In conjunction with Fig. 1, Fig. 5 and Fig. 6; During reamer of the present invention work and the supporting use of down-the-hole drill; With the power of compressed air as deslagging soil, motor drives drilling rod rotation smear metal, reamer body 2 is connected with transit joint through transit joint connector 1; Transit joint is connected with drilling rod again, and reamer body 2 all has compressed air channel with transit joint 1.
During work; Compressed air is controlled by the operating desk on the down-the-hole drill; In the time of at the bottom of reamer is delivered to the hole through jointed rod; Open admission valve, compressed air is delivered to the gas distributing chamber 12 at cylinder head top by the mesopore of drilling rod with compressed air, and compressed air is delivered to compressed air in the cylinder chamber 2a of reamer body 2 by 4 air inlets 8 on reamer body 2 walls then; The thrust of compressed air and drilling rod is moved piston 11 on gradually; When piston 11 moves to stop, waste gas 4 steam vents 9 and 2 groove mud holes 10 from reamer body 2 cylinders are discharged to waste gas outside hole 9a and the groove respectively, and the slag that cuts is discharged outside the boring through the slagging channel that reamer body 2 deslagging planes 16 form.

Claims (10)

1. reamer comprises cutting knife (3) and reamer body (2), and it is characterized in that: said reamer body (2) comprises a cylinder driver; Said cutting knife (3) but hypertonic, an end and reamer body (2) are hinged, the rod hinge connection of the other end and cylinder driver.
2. reamer according to claim 1; It is characterized in that: said cylinder driver constitutes cylinder chamber (2a) by reamer body (2); Also having cylinder chamber (2a) in the Compressed Gas is the piston (11) that power moves, piston (11) be linked in sequence piston rod (15), base (5) and pole (4) driving cutting knife (3) hypertonic.
3. reamer according to claim 2; It is characterized in that: said piston rod (15) surface has one section along the axial arranged bar tooth (15a) that prevents that piston rod (15) from rotating of piston rod (15), teeth groove (2b) axial sliding fit of bar tooth (15a) and reamer body (2) inwall.
4. according to each described reamer of claim 1 to 3, it is characterized in that: the deslagging passage that the relative both sides of said reamer body (2) outer wall have plane (16) to form.
5. reamer according to claim 4 is characterized in that: said cutting knife (3) has two groups, is separately positioned on body (2) the outer wall relatively in addition both sides vertical with plane (16).
6. according to each described reamer of claim 1 to 3, it is characterized in that: said cutting knife (3) one ends are hinged in the groove (2d) of body (2) outer wall.
7. reamer according to claim 6 is characterized in that: have in the groove (2d) of said body (2) outer wall to connect the hole (10) that outer wall is communicated with cylinder.
8. according to each described reamer of claim 1 to 3, it is characterized in that: said reamer body (2) has inlet channel (8) and exhaust passage (9) that connect reamer body (2) wall respectively.
9. according to each described reamer of claim 1 to 3, it is characterized in that: said cutting knife (3) outward flange has tooth (3a), and outward flange one end tooth (3d) is in tilted layout, and cutting knife (3) is articulated in inboard, tooth (3d) inclined plane with pole (4).
10. according to each described reamer of claim 1 to 3, it is characterized in that: reamer body (2) is connected with the drilling rod transit joint through transit joint (1) connector, and the drilling rod transit joint is connected with drilling rod again.
CN2011202421172U 2011-07-11 2011-07-11 Reamer Active CN202209146U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202421172U CN202209146U (en) 2011-07-11 2011-07-11 Reamer

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Application Number Priority Date Filing Date Title
CN2011202421172U CN202209146U (en) 2011-07-11 2011-07-11 Reamer

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Publication Number Publication Date
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924929A (en) * 2014-05-14 2014-07-16 衢州市易凡设计有限公司 Intelligent double-expanding-blade reaming pile machine drill bit
CN105625947A (en) * 2016-03-24 2016-06-01 平煤建工集团特殊凿井工程有限公司 Drill bit for drilling variable-aperture pile holes
CN106639883A (en) * 2012-10-22 2017-05-10 哈里伯顿能源服务公司 Control module for downwards-drilling tool
CN109702248A (en) * 2019-03-04 2019-05-03 李吴军 A kind of reaming bit of workpiece blind hole
CN109723706A (en) * 2019-03-04 2019-05-07 李吴军 A kind of self-locking screw rod suitable for blind hole implantation
CN109773231A (en) * 2019-03-04 2019-05-21 李吴军 A kind of screw rod method for implantation of machine workpieces blind hole
CN109773230A (en) * 2019-03-04 2019-05-21 李吴军 A kind of expanding method of machine workpieces blind hole

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106639883A (en) * 2012-10-22 2017-05-10 哈里伯顿能源服务公司 Control module for downwards-drilling tool
CN106639883B (en) * 2012-10-22 2019-01-15 哈里伯顿能源服务公司 For being drilled down into the control module of tool
CN103924929A (en) * 2014-05-14 2014-07-16 衢州市易凡设计有限公司 Intelligent double-expanding-blade reaming pile machine drill bit
CN105113992A (en) * 2014-05-14 2015-12-02 衢州市易凡设计有限公司 Intelligent double-reamer wing reaming pile machine drill bit
CN105625947A (en) * 2016-03-24 2016-06-01 平煤建工集团特殊凿井工程有限公司 Drill bit for drilling variable-aperture pile holes
CN109702248A (en) * 2019-03-04 2019-05-03 李吴军 A kind of reaming bit of workpiece blind hole
CN109723706A (en) * 2019-03-04 2019-05-07 李吴军 A kind of self-locking screw rod suitable for blind hole implantation
CN109773231A (en) * 2019-03-04 2019-05-21 李吴军 A kind of screw rod method for implantation of machine workpieces blind hole
CN109773230A (en) * 2019-03-04 2019-05-21 李吴军 A kind of expanding method of machine workpieces blind hole
CN109723706B (en) * 2019-03-04 2020-12-15 平湖市飞天人图文设计有限公司 Self-locking screw suitable for blind hole implantation
CN109773230B (en) * 2019-03-04 2021-05-04 诸暨迅超工业设计有限公司 Hole expanding method for blind hole of machined workpiece

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