CN114754234A - Anchor expanding anchor foot bolt for petroleum exploration drill bit and preparation method of anchor expanding foot bolt - Google Patents
Anchor expanding anchor foot bolt for petroleum exploration drill bit and preparation method of anchor expanding foot bolt Download PDFInfo
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- CN114754234A CN114754234A CN202210579206.9A CN202210579206A CN114754234A CN 114754234 A CN114754234 A CN 114754234A CN 202210579206 A CN202210579206 A CN 202210579206A CN 114754234 A CN114754234 A CN 114754234A
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- tensioning screw
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- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003208 petroleum Substances 0.000 title description 9
- 238000003466 welding Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 36
- 230000000694 effects Effects 0.000 description 16
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/08—Foot or support base
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an anchor expanding foundation bolt for an oil exploration drill bit and a preparation method thereof, relating to the technical field of foundation bolts and having the technical scheme that the anchor expanding foundation bolt comprises an outer sleeve and a tensioning screw rod inserted in the outer sleeve; the tensioning screw rod is in threaded connection with the outer sleeve, one end of the tensioning screw rod penetrates out of one end of the outer sleeve and is in threaded connection with a nut, and the other end of the tensioning screw rod penetrates out of the other end of the outer sleeve and is provided with a conical expansion body; a plurality of strip tensioning leaves which are distributed in an equal radian mode and used for being abutted to the conical expansion body to expand the anchor outwards are arranged at one corresponding end of the outer sleeve, and at least one strip tensioning leaf is fixedly connected with a connecting push column; the tensioning screw rod is connected with the connecting pushing column and used for driving the connecting pushing column to move along the radial direction of the tensioning screw rod. The invention enables the plurality of strip tensioning leaves to move out of the outer side of the outer sleeve to form a bending and protruding structure, thereby achieving the purpose of remarkably improving the fixing stability when being combined with a concrete foundation.
Description
Technical Field
The invention relates to the technical field of foundation bolts, in particular to an anchor expansion foundation bolt for an oil exploration drill bit and a preparation method thereof.
Background
In the process of petroleum exploration, various exploration means are utilized to know the underground geological condition, know the conditions of crude oil, oil storage, oil gas migration, gathering, storage and the like, comprehensively evaluate the oil-gas-containing prospect, determine the favorable area for oil gas gathering, find the trap of the oil gas, find the area of an oil-gas field, find the process of the condition and the output capacity of an oil-gas layer and increase the crude oil storage and related oil-gas products for the country.
In the knowledge of subterranean geology, it is often necessary to use an oil exploration drill bit to impact, crush and shear the fractured formation rock for the purposes of oil drilling and geological drilling. Before using the oil exploration drill bit, however, it is first necessary to fix the oil exploration drill bit to the earth's surface so that the oil exploration drill bit impacts, crushes and shears the formation rock in a single direction in a fixed stable state.
Chinese patent No. CN204372463U discloses an oil pumping unit expansion anchor bolt, which comprises a bolt body, an expansion sleeve, a first bolt cap, a first lock nut, a second bolt cap and a second lock nut, wherein an external thread is provided at one end of the bolt body, the expansion body is fixed at the other end of the bolt body, the expansion body is conical, the large end of the expansion body is outward, the expansion sleeve is sleeved outside the bolt body, the expansion sleeve is in clearance fit with the bolt body, one end of the expansion sleeve is matched with the expansion body, a notch is provided at the matching end of the expansion sleeve and the bolt body, the notch is axially arranged relative to the expansion sleeve, the second lock nut, the second bolt cap, the first lock nut and the first bolt cap are sequentially sleeved on the bolt body, and the two are meshed with the external thread, the axial position of the sleeve is limited by the second locking nut, and the position of the second locking nut is locked by the second bolt spare cap.
But this beam-pumping unit inflation formula rag bolt passes through second lock nut pulling bolt body and outwards removes to drawing in the expansion sleeve with the expanding body and making the incision of expansion sleeve expand and be the loudspeaker form, have the poor problem of simple structure's fixed stability, be difficult to keep lasting stable structure in the long-term use of oil exploration drill bit, and then influence the operation precision of oil exploration drill bit, remain to be improved.
Disclosure of Invention
In view of the disadvantages of the prior art, a first object of the present invention is to provide an anchor expansion anchor foot bolt for an oil exploration drill bit, which has an effect of remarkably improving fixing stability.
In order to realize the purpose, the invention provides the following technical scheme:
an anchor expansion anchor foundation bolt for an oil exploration drill bit comprises an outer sleeve and a tensioning screw rod inserted in the outer sleeve;
the tensioning screw rod is in threaded connection with the outer sleeve, one end of the tensioning screw rod penetrates out of one end of the outer sleeve and is in threaded connection with a nut, and the other end of the tensioning screw rod penetrates out of the other end of the outer sleeve and is provided with a conical expansion body;
a plurality of strip tensioning leaves which are distributed in an equal radian and used for being abutted with the conical expansion body to expand the anchor outwards are arranged at one corresponding end of the outer sleeve, and at least one strip tensioning leaf is fixedly connected with a connecting push column;
The tensioning screw rod is connected with the connecting pushing column and used for driving the connecting pushing column to move along the radial direction of the tensioning screw rod.
Through adopting above-mentioned technical scheme, when this bloated anchor ground sole bolt that is used for oil exploration drill bit to use is fixed in the installation, at first rotate the tensioning screw, make tensioning screw and outer sleeve be relative rotary motion, tensioning screw still will be done for the axial relative movement of outer sleeve this moment, and drive and connect the pillar of pushing away and do along the radial outside lateral shifting of tensioning screw in, do for the axial displacement of outer sleeve through connecting the pillar of pushing away, the simultaneous movement of circumferential direction and radial movement and order about the corresponding position removal of rectangular tensioning leaf, thereby make many rectangular tensioning leaves move out in order to form the protrusion structure of buckling outside the outer sleeve, thereby reach the purpose that shows promotion fixed stability when combining with the concrete foundation.
The invention is further configured to: the inner side of the outer sleeve is provided with a threaded sleeve and an abutting connection table, the abutting connection table is used for being connected with the inner side of the outer sleeve and one end of the threaded sleeve, and a threaded through hole is formed in the threaded sleeve; the tensioning screw is provided with a threaded pipe section which is matched with the threaded sleeve and is in threaded connection with the threaded through hole, the threaded pipe section is connected with the conical expansion body, and the diameter of the tensioning screw is larger than that of the threaded pipe section.
Through adopting above-mentioned technical scheme, the butt is even the platform in the corresponding one end butt with the tensioning screw rod, and then restriction tensioning screw rod further insert, and the screw thread pipeline section peg graft in the screw thread perforation in order to with screw sleeve threaded connection, so that drive the cone form expanding body and rectangular tensioning leaf butt and outside anchor that expands after rotating the tensioning screw rod, make this an anchor ground foot bolt that expands that is used for oil exploration drill bit to use have simple structure, use convenient and show the effect that promotes fixed stability.
The invention is further configured to: the side face of one end, far away from the abutting joint platform, of the threaded sleeve is provided with a plurality of vortex-shaped spiral line grooves distributed in equal radian, one end, close to the axis of the threaded pipe section, of the connecting push column is provided with a limiting inserted rod inserted into the corresponding spiral line groove to move, the side wall, facing the threaded sleeve, of one end of the conical expansion body is provided with a plurality of limiting moving transverse grooves distributed in equal radian and matched with the corresponding spiral line grooves, the length direction of each limiting moving transverse groove is matched with the radial direction of the conical expansion body, and the connecting push column is inserted into the limiting moving transverse grooves and moves along the length direction.
By adopting the technical scheme, when the tensioning screw rod does circumferential rotation movement relative to the outer sleeve, the threaded pipe section does relative circumferential rotation and axial movement in the threaded sleeve and then moves to drive the connecting push post to move in the movement, the limiting inserted rod on the connecting push post is inserted into the spiral wire groove at the moment, so that the spiral wire groove drives the limiting inserted rod to do radial movement away from the axis direction of the threaded sleeve, and the purpose of enabling the connecting push post to move outwards from the inner side of the limiting movement transverse groove to drive the strip tensioning blade to protrude outwards and spirally bend is achieved, and the purpose of remarkably improving the fixing stability of the anchor expanding foot bolt for the petroleum exploration drill bit is achieved when the connecting push post is combined with a concrete foundation.
The invention is further configured to: an inner spacing groove is formed between the inner side walls of the corresponding ends of the threaded pipe section and the outer sleeve.
Through adopting above-mentioned technical scheme, the interval inside groove plays and combines in order to further promote this an anchor ground foot bolt's that expands for oil exploration drill bit is used effect of fixed stability with the concrete.
The invention is further configured to: the inner side of one end, far away from the outer sleeve, of the strip tensioning blade is provided with an inner chamfer, and the conical surface of the conical expansion body is matched with the inner chamfer.
Through adopting above-mentioned technical scheme, the effect of atress when the butt is played to interior chamfer to reach the purpose that promotes the deformation effect of rectangular tensioning leaf.
The invention is further configured to: rectangular tensioning leaf is provided with 2N, and wherein not adjacent N the rectangular tensioning leaf all with corresponding connect and push away the support connnection, just connect and push away the support be provided with corresponding rectangular tensioning leaf connects fixed grafting welding portion.
By adopting the technical scheme, the N nonadjacent long strip tensioning leaves are driven by the connecting push column to protrude outwards and are in a spiral bending shape, and the N nonadjacent long strip tensioning leaves are matched with the state of outwards expanding anchors abutted against the N nonadjacent long strip tensioning leaves in the conical tension body, so that the effect that the two corresponding adjacent long strip tensioning leaves are matched to form a cross shape is realized, and the purpose of remarkably improving the fixing stability of the expanding anchor foot bolt for the petroleum exploration drill bit is achieved when the bolt is combined with a concrete foundation.
The invention is further configured to: two adjacent rectangular tensioning leaves are formed with rectangular fluting between, the toper expanding body is kept away from the one end of tensioning screw rod is provided with the processing inside groove.
Through adopting above-mentioned technical scheme, rectangular fluting is used for separating rectangular tensioning leaf, and the processing inside groove plays the structural strength who reduces the material and use and strengthen the toper expander to promote this a structural stability who is used for bloated anchor foundation bolt that oil exploration drill bit was used.
The invention is further configured to: a flat gasket and a spring gasket are sleeved on the tensioning screw rod, the flat gasket is used for being abutted against one corresponding end of the outer sleeve, and two sides of the spring gasket are respectively used for being abutted against the nut and the flat gasket; the diameter of one end of the flat gasket is smaller than that of the other end of the flat gasket, and the spring gasket is sleeved at the end, with the smaller diameter, of the flat gasket.
Through adopting above-mentioned technical scheme, flat gasket and spring shim cooperation play the fixed stable effect of connection that promotes the nut, thereby and further promote stability by flat gasket to spring shim's spacing to make this an anchor ground foot bolt that expands that is used for oil exploration drill bit to use have the effect that shows promotion fixed stability.
The second purpose of the invention is to provide a method for preparing an anchor expansion anchor foundation bolt for an oil exploration drill bit, which comprises the following steps: firstly, preparing an outer sleeve, a threaded sleeve, a tensioning screw, a conical expansion body and a connecting push column; cutting a plurality of strip grooves distributed at equal intervals at one end of the outer sleeve to form a strip tensioning blade, punching one end of the threaded sleeve to form a butting table, and welding and fixing the butting table and the inner side of the outer sleeve; thirdly, inserting the tensioning screw rod into the outer sleeve, connecting the threaded pipe section with the threaded sleeve in a threaded manner, and sequentially mounting a flat gasket, a spring gasket and a nut at one end of the tensioning screw rod; fourthly, positioning the connecting push column, and welding and fixing one corresponding end on the long tensioning leaf when the limiting inserted rod is inserted into the spiral slot; and fifthly, inserting the connecting push column into a limiting moving transverse groove of the conical expansion body, and welding and fixing the conical expansion body and the threaded pipe section through the long-strip groove.
By adopting the technical scheme, the expansion anchor foot bolt for the oil exploration drill bit is prepared in a welding fixing and threaded connection mode, so that the effects of reducing the preparation difficulty and improving the efficiency are achieved, the expansion anchor foot bolt is suitable for batch production preparation, and the economic benefit is improved.
The invention is further configured to: in the first step, the conical expansion body is punched and formed with an inner processing groove; in step fifthly, firstly, the corresponding end of the tensioning screw is connected with the butt joint platform in a butt joint mode, when the tensioning screw is fixedly welded, the interval which is smaller than the length of the limiting insertion rod is formed between the conical expansion body and the threaded pipe section, and the length of the limiting insertion rod is equal to the depth of the spiral line groove.
By adopting the technical scheme, the preparation difficulty of the anchor expansion anchor foot bolt for the petroleum exploration drill bit is obviously reduced, so that the production and manufacturing cost is effectively reduced, and the economic benefit is improved.
In conclusion, the invention has the following beneficial effects: screw-thread fit through outer sleeve and tensioning screw is connected to make the tensioning screw drive to connect and push away the post and do and radially move to the outside along the tensioning screw at the rotation in-process, and then will make and connect the axial displacement of pushing away the post and doing for the outer sleeve, circumferential direction and radial movement's simultaneous movement and order about the corresponding position of rectangular tensioning leaf and remove, thereby make many rectangular tensioning leaves do and shift out in order to form the protrusion structure of buckling outside the outer sleeve, so that this an inflation anchor ground foot bolt for oil exploration drill bit usefulness has the effect that shows promotion fixed stability.
Drawings
FIG. 1 is a schematic structural view of an anchor expansion anchor foot bolt for an oil exploration drill bit of the present application;
FIG. 2 is a schematic cross-sectional view of an anchor expansion anchor for an oil exploration drill bit according to the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is an exploded view of the anchor expansion anchor foot bolt for an oil exploration drill bit of the present application.
Description of the reference numerals: 1. an outer sleeve; 11. a strip tensioning leaf; 111. inner chamfering; 12. grooving the long strip; 13. a threaded bushing; 131. a spiral wire groove; 132. perforating the threads; 14. a butting table; 15. an inner groove is spaced; 2. tensioning the screw; 21. a threaded pipe section; 3. a flat gasket; 4. a spring washer; 5. a nut; 6. a conical expander; 61. processing an inner groove; 62. limiting the moving transverse groove; 7. connecting the push column; 71. a limiting inserted rod; 72. and inserting and welding the parts.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in figure 1, the anchor expanding anchor foot bolt for the oil exploration drill bit comprises an outer sleeve 1 and a tensioning screw rod 2 inserted in the outer sleeve 1. The tensioning screw rod 2 is in threaded connection with the outer sleeve 1, one end of the tensioning screw rod 2 penetrates out of one end of the outer sleeve 1 and is in threaded connection with a nut 5, the other end of the tensioning screw rod 2 penetrates out of the other end of the outer sleeve 1 and is provided with a conical expansion body 6, and the conical expansion body 6 is fixedly connected with one corresponding end of the tensioning screw rod 2 in a welding, threaded connection and eye-splice connection mode. The one end that corresponds in outer sleeve 1 and 6 positions of the taper expansion body is provided with a plurality of radians and distributes and be used for with 6 butts of the taper expansion body with the rectangular tensioning leaf 11 of outside bloated anchor, and 11 fixedly connected with of at least one rectangular tensioning leaf connect the support pillar 7. The connecting push column 7 is connected with the tensioning screw rod 2 and is used for moving along the radial direction of the tensioning screw rod 2 under the driving of the tensioning screw rod 2, so that the connected strip tensioning leaves 11 are pushed to protrude outwards and drive the strip tensioning leaves 11 to bend and deform in the moving process. Therefore, when the anchor expansion anchor foot bolt for the oil exploration drill bit is installed and fixed, the tensioning screw rod 2 is firstly rotated, the tensioning screw rod 2 and the outer sleeve 1 are enabled to do relative rotation movement, at the moment, the tensioning screw rod 2 still does axial relative movement relative to the outer sleeve 1, the connecting push column 7 is driven to do radial outward movement along the tensioning screw rod 2, meanwhile, the connecting push column 7 does axial movement relative to the outer sleeve 1, and moves along with circumferential rotation and radial movement to drive the corresponding part of the strip tensioning blade 11 to move, so that the strip tensioning blades 11 move out of the outer sleeve 1 to form a bending protruding structure, and the purpose of remarkably improving fixing stability is achieved when the bolt is combined with a concrete foundation.
Meanwhile, a flat gasket 3 and a spring gasket 4 are sleeved on the tensioning screw 2. The flat washer 3 is used for abutting against one corresponding end of the outer sleeve 1, and two sides of the spring washer 4 are respectively used for abutting against the nut 5 and the flat washer 3. Wherein, the diameter of one end of the flat gasket 3 is smaller than that of the other end, and the spring gasket 4 is sleeved at the end of the flat gasket 3 with smaller diameter. Therefore, play the fixed stable effect of connecting of lifting nut 5 through the cooperation of flat gasket 3 and spring shim 4, thereby further promote stability by flat gasket 3 to spring shim 4's spacing to it has the effect that is showing promotion fixed stability to make this an anchor expansion anchor rag bolt for oil exploration drill bit usefulness.
As shown in fig. 2 and 3, a threaded sleeve 13 and an abutment table 14 are provided inside the outer sleeve 1. The abutment table 14 is used for connecting the inner side of the outer sleeve 1 and one end of the threaded sleeve 13, and a threaded through hole 132 is formed in the threaded sleeve 13. Correspondingly, a threaded pipe section 21, which is adapted to the threaded sleeve 13 and is screwed into the threaded bore 132, is provided at one end of the tensioning screw 2. The threaded pipe section 21 is fixedly connected with the conical expansion body 6, and the diameter of the tensioning screw 2 is larger than that of the threaded pipe section 21, so that the abutting table 14 plays a role of limiting the rotation of the tensioning screw 2 when abutting against the tensioning screw 2. Therefore, when the butt connection platform 14 is in butt connection with the corresponding end of the tensioning screw 2, the further inserting effect of the tensioning screw 2 is limited, and the threaded pipe section 21 is inserted into the threaded through hole 132 to be in threaded connection with the threaded sleeve 13, so that the conical expansion body 6 is driven to butt against the strip tensioning blade 11 and expand the anchor outwards after the tensioning screw 2 is rotated, and the anchor expanding ground bolt for the oil exploration drill bit has the effects of simple structure, convenience in use and remarkable improvement of fixing stability.
As shown in fig. 2, 3 and 4, a plurality of spiral grooves 131 distributed in an equal radian are disposed on a side surface of one end of the threaded sleeve 13 away from the abutting table 14, and a limit inserting rod 71 inserted into the corresponding spiral groove 131 to move is disposed on one end of the connecting push rod 7 close to the axis of the threaded pipe section 21, the spiral grooves 131 are archimedes spiral lines, and the length of the limit inserting rod 71 is equal to the depth of the spiral groove 131, so that the connecting push rod 7 can perform relative circumferential rotation and radial movement.
Wherein, the side wall of one end of the conical expansion body 6 facing the threaded sleeve 13 is provided with a plurality of limiting moving transverse grooves 62 which are distributed in an equal radian and are matched with the corresponding spiral grooves 131. The length direction of the limit moving transverse groove 62 is matched with the radial direction of the conical expansion body 6, and the connecting push column 7 is inserted in the limit moving transverse groove 62 and moves along the length direction, and further, when the tensioning screw 2 performs a circumferential rotational movement relative to the outer sleeve 1, the threaded pipe section 21 moves simultaneously with a relative circumferential rotation and an axial displacement in the threaded sleeve 13, thereby driving the connecting pushing post 7 to move in the movement, at this time, the limit inserting rod 71 on the connecting pushing post 7 is inserted in the spiral slot 131, thereby enabling the spiral groove 131 to drive the limit inserted rod 71 to move in the radial direction away from the axial direction of the threaded sleeve 13, and the purpose that the connecting push column 7 moves outwards from the inner side of the limiting moving transverse groove 62 to drive the long tensioning leaf 11 to protrude outwards and be bent spirally is achieved, so that the purpose of remarkably improving the fixing stability of the anchor expanding foundation bolt for the petroleum exploration drill bit is achieved when the anchor expanding foundation bolt is combined with a concrete foundation.
An internal spacing groove 15 is formed between the threaded pipe section 21 and the inner side wall of the corresponding end of the outer sleeve 1. The spacer inner grooves 15 serve to combine with concrete to further improve the fixing stability of the anchor expansion anchor footbolt for an oil exploration drill bit. An inner chamfer 111 is arranged on the inner side of one end of the strip tensioning blade 11 far away from the outer sleeve 1, and the conical surface of the conical expansion body 6 is matched with the inner chamfer 111. Therefore, the inner chamfer 111 acts as a force receiving portion when abutting, thereby achieving the purpose of enhancing the deformation effect of the long tension blade 11.
It should be mentioned that the strip tensioning leaves 11 are provided with 2N strips, and N non-adjacent strip tensioning leaves 11 are connected with the corresponding connecting pushing column 7, and the connecting pushing column 7 is provided with the insertion welding portion 72 fixedly connected with the corresponding strip tensioning leaves 11. Wherein, the nonadjacent N long strip tensioning leaves 11 are driven by the connecting push column 7 to protrude outwards and are in a spiral bending shape, and the state that the N long strip tensioning leaves 11 are butted with the conical tension body to expand the anchor outwards is matched, so that the corresponding two adjacent long strip tensioning leaves 11 are matched to form a cross shape, and the purpose of remarkably improving the fixing stability of the anchor expansion ground bolt for the petroleum exploration drill bit is achieved when the anchor expansion ground bolt is combined with a concrete foundation.
In this embodiment, N is 2 to 12, and preferably 9.
Meanwhile, a strip groove 12 is formed between two adjacent strip tension blades 11. And one end of the conical expansion body 6, which is far away from the tensioning screw 2, is provided with a processing inner groove 61. The strip-shaped open groove 12 is used for separating the strip-shaped tensioning blades 11, and the processing inner groove 61 is used for reducing the material consumption and enhancing the structural strength of the conical expansion body 6, so that the structural stability of the anchor expansion anchor foot bolt for the petroleum exploration drill bit is improved.
A method for preparing an anchor expansion anchor foundation bolt for an oil exploration drill bit comprises the following steps: firstly, preparing an outer sleeve 1, a threaded sleeve 13, a tensioning screw 2, a conical expansion body 6 and a connecting push column 7, wherein the conical expansion body 6 is formed by punching and is provided with a processing inner groove 61; cutting a plurality of strip slots 12 distributed at equal intervals at one end of the outer sleeve 1, forming a strip tensioning blade 11, punching one end of a threaded sleeve 13 to form an abutting table 14, and welding and fixing the abutting table 14 and the inner side of the outer sleeve 1; thirdly, the tensioning screw rod 2 is inserted into the outer sleeve 1, the threaded pipe section 21 is in threaded connection with the threaded sleeve 13, and a flat gasket 3, a spring gasket 4 and a nut 5 are sequentially arranged at one end of the tensioning screw rod 2; fourthly, positioning the connecting push column 7, and welding and fixing one corresponding end on the long tensioning leaf 11 when the limiting insertion rod 71 is inserted into the spiral slot 131; fifthly, inserting the connecting push column 7 into the limiting moving transverse groove 62 of the conical expansion body 6, welding and fixing the conical expansion body 6 and the threaded pipe section 21 through the long-strip open groove 12, and specifically, firstly enabling the corresponding end of the tensioning screw 2 to be abutted against the abutting connection table 14, and forming a space with the height smaller than the length of the limiting insertion rod 71 between the conical expansion body 6 and the threaded pipe section 21 when welding and fixing, wherein the length of the limiting insertion rod 71 is equal to the depth of the spiral groove 131.
Since the preparation of the tensioning screw 2, the connecting push column 7, the threaded sleeve 13 and the outer sleeve 1 belongs to the conventional technology, the detailed description is omitted here. The flat gasket 3, the spring gasket 4 and the nut 5 are directly purchased and used for the existing products, and the details are not repeated here.
Therefore, the anchor expansion anchor foot bolt for the oil exploration drill bit is prepared by the method for preparing the anchor expansion foot bolt for the oil exploration drill bit in a welding fixing and threaded connection mode, the preparation difficulty of the anchor expansion foot bolt for the oil exploration drill bit is obviously reduced, the production and manufacturing cost is effectively reduced, the economic benefit is improved, and meanwhile the anchor expansion foot bolt is suitable for mass production preparation, so that the economic benefit is improved.
To sum up, this application is connected through the screw-thread fit of outer sleeve 1 with tensioning screw 2 to make tensioning screw 2 drive connection pushing column 7 and do and radially move to the outside along tensioning screw 2 in the rotation process, and then will make connection pushing column 7 do for the axial displacement of outer sleeve 1, the simultaneous movement of circumferential direction and radial movement and order about the corresponding position of rectangular tensioning leaf 11 and remove, thereby make many rectangular tensioning leaves 11 do and shift out in order to form the salient structure of buckling outside sleeve 1 outside, so that this an inflation anchor foot bolt for oil exploration drill bit usefulness has the effect that shows promotion fixed stability.
References to "first," "second," "third," "fourth," etc. (if any) in this application are intended to distinguish between similar elements and not necessarily to describe a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be implemented in other sequences than those illustrated or described herein. Moreover, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, or apparatus.
It should be noted that the descriptions relating to "first", "second", etc. in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope claimed in the present application.
The principle and the embodiment of the present application are explained by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An anchor expanding anchor foot bolt for an oil exploration drill bit is characterized in that: comprises an outer sleeve (1) and a tensioning screw rod (2) inserted in the outer sleeve (1);
the tensioning screw (2) is in threaded connection with the outer sleeve (1), one end of the tensioning screw penetrates out of one end of the outer sleeve (1) and is in threaded connection with a nut (5), and the other end of the tensioning screw penetrates out of the other end of the outer sleeve (1) and is provided with a conical expansion body (6);
a plurality of strip tensioning leaves (11) which are distributed in an equal radian mode and used for being abutted to the conical expansion body (6) to expand the anchor outwards are arranged at one corresponding end of the outer sleeve (1), and at least one strip tensioning leaf (11) is fixedly connected with a connecting push column (7);
the tensioning screw (2) is connected with the connecting push column (7) and used for driving the connecting push column (7) to move along the radial direction of the tensioning screw (2).
2. An anchor expansion anchor foot bolt for an oil exploration drill bit as claimed in claim 1, wherein: the inner side of the outer sleeve (1) is provided with a threaded sleeve (13) and an abutting joint table (14), the abutting joint table (14) is used for being connected with the inner side of the outer sleeve (1) and one end of the threaded sleeve (13), and a threaded through hole (132) is formed in the threaded sleeve (13); the tensioning screw rod (2) is provided with a threaded pipe section (21) which is matched with the threaded sleeve (13) and is in threaded connection with the inside of the threaded through hole (132), the threaded pipe section (21) is connected with the conical expansion body (6), and the diameter of the tensioning screw rod (2) is larger than that of the threaded pipe section (21).
3. An anchor expansion anchor foot bolt for an oil exploration drill bit as claimed in claim 2, wherein: the side face of one end, far away from the abutting joint platform (14), of the threaded sleeve (13) is provided with a plurality of spiral wire grooves (131) distributed in an equal radian, one end, close to the axis of the threaded pipe section (21), of the connecting push column (7) is provided with a limiting inserted rod (71) inserted into the corresponding spiral wire grooves (131) to move, the side wall, facing the threaded sleeve (13), of one end of the conical expansion body (6) is provided with a plurality of limiting moving transverse grooves (62) distributed in an equal radian and matched with the corresponding spiral wire grooves (131), the length direction of the limiting moving transverse grooves (62) is matched with the radial direction of the conical expansion body (6), and the connecting push column (7) is inserted into the limiting moving transverse grooves (62) and moves along the length direction.
4. An anchor expansion anchor foot bolt for an oil exploration drill bit as claimed in claim 2, wherein: an inner spacing groove (15) is formed between the threaded pipe section (21) and the inner side wall of the corresponding end of the outer sleeve (1).
5. An anchor expansion anchor foot bolt for an oil exploration drill bit as claimed in claim 2, wherein: an inner chamfer (111) is arranged on the inner side of one end, far away from the outer sleeve (1), of the long tensioning blade (11), and the conical surface of the conical expansion body (6) is matched with the inner chamfer (111).
6. An anchor expansion anchor foot bolt for an oil exploration drill bit as claimed in claim 1, wherein: rectangular tensioning leaf (11) are provided with 2N, and wherein not adjacent N rectangular tensioning leaf (11) all with corresponding connect and push away post (7) and connect, just connect and push away post (7) and be provided with corresponding rectangular tensioning leaf (11) are connected fixed grafting welding portion (72).
7. An anchor foot bolt for an oil exploration drill bit as claimed in claim 1, wherein: two adjacent rectangular tensioning leaf (11) between be formed with rectangular fluting (12), conical expanding body (6) is kept away from the one end of tensioning screw rod (2) is provided with processing inside groove (61).
8. An anchor expansion anchor foot bolt for an oil exploration drill bit as claimed in claim 1, wherein: the tensioning screw (2) is sleeved with a flat gasket (3) and a spring gasket (4), the flat gasket (3) is used for being abutted against one corresponding end of the outer sleeve (1), and two sides of the spring gasket (4) are respectively used for being abutted against the nut (5) and the flat gasket (3); the diameter of one end of the flat gasket (3) is smaller than that of the other end of the flat gasket, and the spring gasket (4) is sleeved at the end, with the smaller diameter, of the flat gasket (3).
9. A preparation method of an anchor expansion anchor foundation bolt for an oil exploration drill bit is characterized by comprising the following steps: firstly, preparing an outer sleeve (1), a threaded sleeve (13), a tensioning screw rod (2), a conical expansion body (6) and a connecting push column (7); cutting a plurality of strip-shaped grooves (12) distributed at equal intervals at one end of the outer sleeve (1), forming a strip tensioning blade (11), punching one end of the threaded sleeve (13) to form a butting table (14), and welding and fixing the butting table (14) and the inner side of the outer sleeve (1); thirdly, the tensioning screw rod (2) is inserted into the outer sleeve (1), the threaded pipe section (21) is in threaded connection with the threaded sleeve (13), and a flat gasket (3), a spring gasket (4) and a nut (5) are sequentially arranged at one end of the tensioning screw rod (2); fourthly, positioning the connecting push column (7), and welding and fixing one corresponding end of the limiting inserted rod (71) on the long tensioning leaf (11) when the limiting inserted rod is inserted into the spiral slot (131); inserting the connecting pushing column (7) into a limiting moving transverse groove (62) of the conical expansion body (6), and welding and fixing the conical expansion body (6) and the threaded pipe section (21) through the long-strip open groove (12).
10. The method for manufacturing an anchor expansion anchor footbolt for an oil exploration drill bit as claimed in claim 9, wherein: in the first step, a conical expansion body (6) is punched and formed with a processing inner groove (61); in the fifth step, firstly, the corresponding end of the tensioning screw (2) is abutted against the abutting connection table (14), and when the tensioning screw is welded and fixed, a space with the height smaller than the length of the limiting inserted rod (71) is formed between the conical expansion body (6) and the threaded pipe section (21), and the length of the limiting inserted rod (71) is equal to the depth of the spiral line groove (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210579206.9A CN114754234B (en) | 2022-05-26 | 2022-05-26 | Expansion anchor foundation bolt for petroleum exploration drill bit and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210579206.9A CN114754234B (en) | 2022-05-26 | 2022-05-26 | Expansion anchor foundation bolt for petroleum exploration drill bit and preparation method thereof |
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| Publication Number | Publication Date |
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| CN114754234A true CN114754234A (en) | 2022-07-15 |
| CN114754234B CN114754234B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210579206.9A Active CN114754234B (en) | 2022-05-26 | 2022-05-26 | Expansion anchor foundation bolt for petroleum exploration drill bit and preparation method thereof |
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| CN (1) | CN114754234B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114754234B (en) | 2024-05-17 |
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