CN201306124Y - A forward-drilling hole dilating drill for raise boring machine - Google Patents
A forward-drilling hole dilating drill for raise boring machine Download PDFInfo
- Publication number
- CN201306124Y CN201306124Y CNU2008202116337U CN200820211633U CN201306124Y CN 201306124 Y CN201306124 Y CN 201306124Y CN U2008202116337 U CNU2008202116337 U CN U2008202116337U CN 200820211633 U CN200820211633 U CN 200820211633U CN 201306124 Y CN201306124 Y CN 201306124Y
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- boring machine
- raise boring
- bit body
- bit
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Abstract
Disclosed is a forward-drilling hole dilating drill for raise boring machine, which mainly solves the potential hazard problems of drill falling and drill jamming found in drilling bit of raise boring machine. The utility model is characterized in that a drilling bit body (16) is shaped like a filter cone, a wear-resistant guiding plate (17), a drag twist (15) and a plurality of rock breaking cutting tools (14) are respectively fixed on the circumferential upper edge, bottom part and the inclined plane of the drilling bit body; a transition flange plate (20) on the upper part of the drilling bit body (16) is fixed on a lower central tube (19); meanwhile, a support faceplate (21) positioned above the transition flange plate (20) is used for supporting a plurality of counterweight blocks (7) which are matched and superposed with each other, and then is fixed by a bottom plate (27) under an upper guiding assembly (6); subsequently, the support faceplate is fixed with the bottom plate through a positioning retainer ring (4); an upper lug boss (8) and a concave ring (10) are arranged on the upper and lower parts of the outer circumferential wall of each counterweight block (7), a lifting lug groove (9) with lifting lug-shaped section is arranged between each concave ring (10) and each counterweight block (7) wall. The forward-drilling hole dilating drill for raise boring machine has high work efficiency, safety, firmness and is convenient in assembly, disassembly and transportation.
Description
Technical field
A kind of target drill that raise boring machine is used in the mine engineering machinery, especially raise boring machine forward reamer bit of bored well that relates to.
Background technology
Along with the exploitation dynamics of China's increasing to western energy base, the Safety of Coal Mine Production problem is an important research project.Solve the Safety of Coal Mine Production problem, just need to increase shaft constructions such as coalmine ventilation well, gas drainage under suction well.If adopt positive well drill drilling method Drilling well technology construction, the mechanization degree height, become that the well diameter is big, precision is high, but the vertical drilling equipment is not only bulky, system and reamer bit structure complexity, and drilling technology is comparatively loaded down with trivial details, low, the deficiency in economic performance of Drilling pit shaft efficient, the dismounting of rig itself and drill bit and transportation are inconvenient, are not suitable for the demand of rapid drilling operation.The reverse boring method of raise boring machine has obtained using widely at present in the mine shaft construction, its drillng operation mode is a reverse reaming sinking shaft mode from bottom to top, rig and drill bit structure are simple, occupation area of equipment is little, drill bit does not need counterweight, the pulling force and the moment of torsion that rely on rig self dynamical system to provide break rock, and drilling efficiency height, duty cycle lack; But in the reverse drilling well reaming of raise boring machine process, because integrated conditions such as reaming bit self structure and stratum instability have determined drilling rod fatigue damage in various degree, drilling rod may be from the fracture of a certain position, make reaming bit and the part drilling rod entry that drops down, cause the serious damage of drilling tool, it is stuck at middle certain position of pit shaft to occur reaming bit what is more, cause the great difficulty and the unsafe factor of subsequent treatment, the underground activities face of being operated in of unloading that the reverse drilling well of raise boring machine is arranged does not again guarantee constructor's safety yet.
The utility model content
The utility model is to overcome wellbore construction pit shaft rig and huge, the complex structure of reaming bit volume equipment in the present prior art, and the reverse reamer bit of bored well drilling tool of raise boring machine is potential fall to bore and the defective and the deficiency of hazards such as bit freezing, and provide a kind of raise boring machine forward reamer bit of bored well, it can solve defective and the deficiency that present prior art exists effectively in construction, guaranteed the raise boring machine security reliability of forward reamer bit of bored well in anti-well forward sinking shaft construction.
Technical solution of the present utility model is: this raise boring machine comprises upper and lower central tube, bit body, broken rock cutter with the forward reamer bit of bored well, bit body is fixedly mounted on the end of lower center tube, bit body is the pan type, and its circumference top edge, bottom and inclined-plane are fixed with wear-resistant guiding plate, drag twist and some broken rock cutters respectively; The excessive flange on bit body top is fixed on the lower center tube, and excessively the support plate washer of flange top supports behind some balancing weights of the stack that cooperatively interacts mutually firmly by the base plate last guiding assemblage under, fixes by locating the baffle ring circle afterwards; And the balancing weight outer circle wall have convex platform and scrobicular ring up and down, and the cross section is arranged between scrobicular ring and balancing weight wall is the hanger groove of " hanger " type.
Above-mentioned raise boring machine is a torus with forward reamer bit of bored well balancing weight, positioning retainer ring be half armful ring-like, convex platform and base plate gap location have base.
Technique effect of the present utility model is: because the utility model adopts said structure, be provided with positioning retainer ring in its structure, go up guiding assemblage, balancing weight, lead wearing plate, drag twist down, thereby played the effect of monolithic stability, avoided great economy security incidents such as brill, bit freezing; Also can when creeping into, play borehole wall supporting simultaneously; There is unloading of raise boring machine forward drilling well to be operated in work plane on the ground again, also guaranteed constructor's personal safety.This structure of " funnel " type bit body, also make broken rock slag along scalene cone from slipping to the slide cash hole of Drilling in advance, avoid the repetition fragmentation, can improve drilling efficiency; The drag twist of bit body front end can prevent from the drilling process to cause slipping the obstruction in cash hole owing to bulk rock slag, also can play the effect of guiding smoothly simultaneously guaranteeing to slip the cash hole; The drill bit overall structure is simple, dismounting and convenient transportation, and can be at less working space Drilling than the major diameter vertical shaft.Raise boring machine forward reamer bit of bored well all is being improved aspect Drilling pit shaft efficient and the economic benefit.
Description of drawings
Accompanying drawing 1 is an assembling drawing of the present utility model;
Accompanying drawing 2 is sectional drawings of going up guiding assemblage of the present utility model;
Accompanying drawing 3 is vertical views of accompanying drawing 2.
Among the figure: 1-compromise joint drilling rod, 2-spline thread joint, 3-" U " alignment pin, the 4-positioning retainer ring, 5-bolt, the last guiding assemblage of 6-, the 7-balancing weight, 8-convex platform, 9-hanger groove, the 10-concave ring groove, 11-bearing pin, 12-bolt, the 13-bolt, 14-breaks rock cutter, 15-drag twist, the 16-bit body, 17-wear-resistant guiding plate, 18-bearing rib, the 19-lower center tube, 20-counter flange dish, 21-support panel, the 22-base, 23-upper center tube, 24-upper center tube joint projection, the 25-spline housing, 26-riser, 27-base plate, 28-gusset, 29-be top panel from all directions, the 30-cutter hub that leads.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
With reference to accompanying drawing 1 in conjunction with the accompanying drawings shown in 2,3, this forward reamer bit of bored well comprises upper center tube 23 and lower center tube 19, bit body 16, broken rock cutter 14, bit body 16 is fixedly mounted on the end of lower center tube 19, bit body 16 is the pan type, and its circumference top edge, bottom and inclined-plane are fixed with wear-resistant guiding plate 17, drag twist 15 and some broken rock cutters 14 respectively; The excessive flange 20 on bit body top is fixed on the lower center tube 19, and excessively the support panel 21 of flange 20 tops to support some balancing weights 7 backs of the stack that cooperatively interacts mutually firm by the base plate 27 under the last guiding assemblage 6, fix by positioning retainer ring 4 afterwards; And balancing weight 7 outer circle walls have convex platform 8 and scrobicular ring 10 up and down, and the cross section is arranged between scrobicular ring 10 and balancing weight 7 walls is the hanger groove 9 of " hanger " type.Balancing weight 7 is a torus, positioning retainer ring 4 be half armful ring-like, convex platform 8 has base 22 with base plate 27 gap locations.
The utility model raise boring machine is the pan type with the bit body 16 of forward reamer bit of bored well, and the circumference top edge is fixed with wear-resistant guiding plate 17, supports the borehole wall in drilling process, plays guiding and stabilization; The lower bevel place is distributed with 6 broken rock cutters 14 by the mode of pin-and-hole location and welding, in drilling process, is the main tool of fragmented rock body; The lower bottom part of bit body 16 is welded with drag twist 15, mainly plays remove to slip the bulk rock slag that stops up in the cash hole in the forward drilling well, and guaranteeing to slip the cash hole can operate as normal, avoids bit freezing even falls accident such as brill.Bearing ribs 18 below the counter flange dish 20 are connected with bit body 16 by bolt 13, and excessive flange 20 and following bearing rib 18 thereof are fixed on the lower center tube 19 by straight pin 11, bolt 12.Excessively the support panel 21 of flange 20 tops plays the effect of supporting balancing weight 7, support panel 21 and above balancing weight 7 fixing by the base plate under the last guiding assemblage 6 27, make balancing weight 7 compact overall structure.Mutual superposition is formed an integral body together between the balancing weight 7, and each balancing weight 7 all has convex platform 8 and scrobicular ring 10, makes that balancing weight 7 can mutual superposition, and guarantees the monolithic stability of balancing weight.Be processed into the annular groove type between the outer wall of scrobicular ring 10 and balancing weight 7, its cross sectional shape is " hanger " type, and is convenient when purpose is installation and removal balancing weight 7.Last guiding assemblage 6 comprises riser 26, base plate 27, gusset 28, all directions top panel 29, and guiding cutter hub 30 together plays guiding and support with wear-resistant guiding plate 17 in construction.Base 22 under the base plate 27 of last guiding assemblage 6 matches with the convex platform 8 of balancing weight 7, fixes with positioning retainer ring 4; Positioning retainer ring 4 is used for stablizing goes up guiding assemblage 6 and balancing weight 7, and wherein positioning retainer ring 4 is two and half armfuls of ring-like steel parts, and this structure is convenient to fixed installation and is dismantled in construction.Positioning retainer ring 4 is fixed on the top of guiding assemblage 6 by bolt 5, match with upper center tube joint projection 24 in its top, be used for doing the positoning function of reaming bit, prevent in the drilling process that guiding assemblage 6 and the vibrations of balancing weight 7 owing to wellbore construction swing, accident such as cause that drilling rod twists off.
The execute-in-place step is: the utility model is lifted to well head, and place it in the pit shaft that cutting is good in advance; Raise boring machine is moved to top, well head center; Connect the utility model top compromise joint 1, and startup rig power motor begins to carry out ream operation; Reaming bit in pit shaft by on guiding assemblage 6 and following wear-resistant guiding plate 17 play a supportive role, broken rock cutter 14 carries out catalase, drag twist 15 carries out the cleaning work of pilot hole obstruction rock slag at front end.The quantity of balancing weight 7 increases according to the increase of drilling depth, relies on the weight of counterweight and drilling tool to break rock.
What the anti-well of the utility model was just boring the jointing employing of reaming bit central tube top is the spline alligator fitting of the supporting drilling rod of vertical rig, it is to be connected with spline thread joint 2 usefulness taper threads by compromise joint 1 with of the present utility model the connection, and upper center tube joint projection 24 is joined by " U " type alignment pin 3 and spline housing 25 with spline thread joint 2.And the supporting drilling tool of raise boring machine adopts oil API standard thread button-type connected mode at present.
Claims (4)
1, a kind of raise boring machine forward reamer bit of bored well, comprise lower center tube (23,19), bit body (16), broken rock cutter (14), bit body (16) is fixedly mounted on the end of lower center tube (19), it is characterized in that: bit body (16) is the pan type, and its circumference top edge, bottom and inclined-plane are fixed with wear-resistant guiding plate (17), drag twist (15) and some broken rock cutters (14) respectively; The excessive flange (20) on bit body (16) top is fixed on the lower center tube (19), and it is mutually firm by the base plate (27) under the last guiding assemblage (6) that excessively the support panel (21) of flange (20) top supports some balancing weights (7) back of the stack that cooperatively interacts, and fixes by positioning retainer ring (4) afterwards; And balancing weight (7) outer circle wall have convex platform (8) and scrobicular ring (10) up and down, and the cross section is arranged between scrobicular ring (10) and balancing weight (7) wall is the hanger groove (9) of " hanger " type.
2, according to the described raise boring machine of claim 1 forward reamer bit of bored well, it is characterized in that: balancing weight (7) is a torus.
3, according to the described raise boring machine of claim 1 forward reamer bit of bored well, it is characterized in that: positioning retainer ring (4) be half armful ring-like.
4, according to the described raise boring machine of claim 1 forward reamer bit of bored well, it is characterized in that: convex platform (8) has base (22) with base plate (27) gap location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202116337U CN201306124Y (en) | 2008-12-10 | 2008-12-10 | A forward-drilling hole dilating drill for raise boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202116337U CN201306124Y (en) | 2008-12-10 | 2008-12-10 | A forward-drilling hole dilating drill for raise boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306124Y true CN201306124Y (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202116337U Expired - Fee Related CN201306124Y (en) | 2008-12-10 | 2008-12-10 | A forward-drilling hole dilating drill for raise boring machine |
Country Status (1)
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|---|---|
| CN (1) | CN201306124Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493809A (en) * | 2011-12-12 | 2012-06-13 | 北京中煤矿山工程有限公司 | Comprehensive shaft sinking method of positive and raising boring for vertical shaft |
| CN103696698A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Grouting and hole cleaning drill bit |
| CN103821455A (en) * | 2013-11-14 | 2014-05-28 | 北京中煤矿山工程有限公司 | Shaft heading machine drill bit structure capable of correcting well guiding deflection |
| CN103835661A (en) * | 2013-11-06 | 2014-06-04 | 北京中煤矿山工程有限公司 | Local excavation pre-supporting raise boring technology |
| CN104929514A (en) * | 2015-05-29 | 2015-09-23 | 内蒙古上海庙矿业有限责任公司 | Raise-boring machine construction method |
| CN104989272A (en) * | 2015-06-04 | 2015-10-21 | 北京中煤矿山工程有限公司 | Upward inverse well drilling process |
| CN106499342A (en) * | 2016-12-20 | 2017-03-15 | 宁夏天地奔牛实业集团有限公司 | On to anti-well rig reaming bit and starter erecting device and method |
| CN107956424A (en) * | 2017-12-19 | 2018-04-24 | 北京中煤矿山工程有限公司 | A kind of anti-fall mechanism of shaft with large angle of inclination raising boring reaming bit |
| CN108869882A (en) * | 2018-07-27 | 2018-11-23 | 中国石油天然气集团公司 | A kind of tube support arrangement for anti-well off-angle drilling technique |
-
2008
- 2008-12-10 CN CNU2008202116337U patent/CN201306124Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493809A (en) * | 2011-12-12 | 2012-06-13 | 北京中煤矿山工程有限公司 | Comprehensive shaft sinking method of positive and raising boring for vertical shaft |
| CN103835661A (en) * | 2013-11-06 | 2014-06-04 | 北京中煤矿山工程有限公司 | Local excavation pre-supporting raise boring technology |
| CN103835661B (en) * | 2013-11-06 | 2016-03-16 | 北京中煤矿山工程有限公司 | A kind of local excavation pre support mine shaft rising boring technique |
| CN103696698B (en) * | 2013-11-12 | 2016-02-24 | 湖北中南勘察基础工程有限公司 | A kind of slip casting cleaning bottom of hole drill bit |
| CN103696698A (en) * | 2013-11-12 | 2014-04-02 | 湖北中南勘察基础工程有限公司 | Grouting and hole cleaning drill bit |
| CN103821455A (en) * | 2013-11-14 | 2014-05-28 | 北京中煤矿山工程有限公司 | Shaft heading machine drill bit structure capable of correcting well guiding deflection |
| CN104929514A (en) * | 2015-05-29 | 2015-09-23 | 内蒙古上海庙矿业有限责任公司 | Raise-boring machine construction method |
| CN104929514B (en) * | 2015-05-29 | 2017-04-12 | 内蒙古上海庙矿业有限责任公司 | Raise-boring machine construction method |
| CN104989272A (en) * | 2015-06-04 | 2015-10-21 | 北京中煤矿山工程有限公司 | Upward inverse well drilling process |
| CN106499342A (en) * | 2016-12-20 | 2017-03-15 | 宁夏天地奔牛实业集团有限公司 | On to anti-well rig reaming bit and starter erecting device and method |
| CN107956424A (en) * | 2017-12-19 | 2018-04-24 | 北京中煤矿山工程有限公司 | A kind of anti-fall mechanism of shaft with large angle of inclination raising boring reaming bit |
| CN107956424B (en) * | 2017-12-19 | 2023-07-07 | 北京中煤矿山工程有限公司 | Anti-falling mechanism of large-inclination angle inclined shaft inverted well drilling reamer |
| CN108869882A (en) * | 2018-07-27 | 2018-11-23 | 中国石油天然气集团公司 | A kind of tube support arrangement for anti-well off-angle drilling technique |
| CN108869882B (en) * | 2018-07-27 | 2023-08-22 | 中国石油天然气集团有限公司 | Pipeline supporting device for well reversing and inclined well drilling process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20111210 |