CN202970484U - Hole expander - Google Patents
Hole expander Download PDFInfo
- Publication number
- CN202970484U CN202970484U CN 201220648500 CN201220648500U CN202970484U CN 202970484 U CN202970484 U CN 202970484U CN 201220648500 CN201220648500 CN 201220648500 CN 201220648500 U CN201220648500 U CN 201220648500U CN 202970484 U CN202970484 U CN 202970484U
- Authority
- CN
- China
- Prior art keywords
- wing
- urceolus
- groove
- driving shaft
- power transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims description 44
- 238000010276 construction Methods 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 11
- 238000005553 drilling Methods 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 241000826860 Trapezium Species 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010024453 Ligament sprain Diseases 0.000 description 1
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a reamer, including urceolus and wing of a knife mechanism, still including setting up in the urceolus and along urceolus endwise slip's transmission mechanism and the canceling release mechanical system that makes transmission mechanism reset, the urceolus upper end is provided with the first seal structure sealed with the cooperation of transmission mechanism outer wall, and the lower extreme is provided with wing of a knife groove, and the tip of urceolus is provided with second seal structure, and wing of a knife mechanism sets up at wing of a knife inslot, is provided with the outside expander that expands of drive wing mechanism in the transmission mechanism, and transmission mechanism's inner chamber and wing of a knife groove intercommunication. The utility model discloses have the contractility, can not receive the restriction of instrument body wall thickness, the reaming size is great, and seal structure is reasonable simultaneously, and at the well drilling in-process, the difficult key part that gets into the reaming body of flexible in-process drilling fluid of reaming wing of a knife can not influence the flexibility of wing of a knife.
Description
Technical field
The utility model relates to a kind of underreamer instrument of drilling well, just relates to specifically a kind of reamer of reaming hole operation of drilling process, is used for the oil and gas well drilling technology, belongs to the design and manufacturing technology field of downhole tool.
Background technology
In the process of oil/gas drilling operation, in order to be lowered to the convenience of sleeve pipe, perhaps when the brill chance was easy to the stratum of undergauge, the well that is drilled to usually had undergauge in various degree, in this case, just well need to be expanded as the larger well of diameter.Towards deep-well, ultradeep well, and the field such as Well-drilling shifts along with oil/gas drilling, and the problem that drilling well faces is also come more.The reaming hole technology also at development, not only can be used as the instrument of simple expansion well as a kind of important means of processing the drilling well unusual condition, also can be used as to answer the collapse instrument on leakiness stratum of commute, can realize small clearance cementing, reduces drilling cost.The reaming hole technology is exactly to adopt a kind of technology that enlarges well with the brill hole reaming tool.Common reamer mainly comprises two kinds of fixed-wing reamer and movable wing reaming hole cutter devices, the fixed-wing reamer mainly is made of drill bit and reamer wing two parts, because reamer wing is larger than the diameter of drill bit, so can get out the borehole diameter that the well that drill bit is got out expands designing requirement to; The movable wing reamer has two kinds of arm-type and piece formulas, and arm-type reamer is that the reaming hole body is fixed on body by bearing pin, and the reaming hole body can be done the rotation of certain angle around bearing pin, and after the reaming hole body opened, therefore diameter can enlarge well through greater than drill bit and reamer body; The reaming hole body of piece formula reamer is wedge-like substantially, but the reaming hole body is fixed on body, therefore can not rotate, but when needing the stratum of reaming hole, under the effect of hydraulic pressure, the reaming hole body is pushed out body and implements reaming hole.
For example, notice of authorization number is exactly a kind of formula reamer for CN202100198 U; Notice of authorization number for CN201843524 U, CN201778658 U and application publication number be the patent document of 101725322 A disclosed be exactly arm-type reamer.
Above-mentioned prior art can be completed specific reaming hole task, but also there is following deficiency: one, due in drilling process, the flexible of reamer wing easily causes drilling fluid to be easy to enter the joint component of reaming hole body, affect the flexibility ratio of wing, the reamer of fixed-wing is received the restriction of tool body wall thickness, therefore the reaming hole size is less, and self energy high-ranking military officer eye enlarges 25% left and right at most, can not satisfy the demand comprehensively.Two, can not suitably enlarge as required the diameter of reamer reaming hole, the limitation of use is larger.Three, hermetically-sealed construction is unreasonable, and in drilling process, in the telescopic process of reamer wing, drilling fluid easily enters the joint component of reaming hole body, affects the flexibility ratio of wing.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above that existing reamer exists, a kind of Novel hole reaming device is provided, the utlity model has contractility, can not be subject to the restriction of tool body wall thickness, the reaming hole size is larger, and hermetically-sealed construction is reasonable simultaneously, in drilling process, in the telescopic process of reamer wing, drilling fluid is difficult for entering the critical component of reaming hole body, can not affect the flexible of wing.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of reamer, comprise urceolus and wing mechanism, it is characterized in that: also comprise being arranged in urceolus and along urceolus driving shaft mechanism and resetting-mechanism that driving shaft mechanism is resetted in axial sliding, described urceolus upper end is provided with the first hermetically-sealed construction with driving shaft mechanism outer wall fitted seal, the lower end is provided with the wing groove, the end of urceolus is provided with the second hermetically-sealed construction, wing mechanism is arranged in the wing groove, be provided with on driving shaft mechanism and drive the expander that wing mechanism expands outwardly, and the inner chamber of driving shaft mechanism is communicated with the wing groove.
Described wing mechanism comprises the operator wing and secondary wing, the described operator wing is identical two of structure, be symmetricly set in the wing groove, secondary wing is identical two of structure, be symmetricly set in the wing groove, and the operator wing and secondary wing are arranged on same circumference, and the external diameter of circumference is identical with the external diameter of urceolus.
Be provided with the expansion orbit that coordinates with expander on the described operator wing and secondary wing, the expansion end of the operator wing is hook solid, and the expansion end of secondary wing is the point of a knife shape.
Described expansion orbit comprises the straight section of indent and is the segmental arc of one with straight section, and before expanding outwardly, expander is positioned on the straight section of indent, and when expanding outwardly, expander moves on segmental arc.
The expansion end of the described operator wing is hook solid, and it is trapezoidal that hook solid is, and trapezoidal upper base is the outer end, and the expansion end of two operator wings arranges in opposite directions.
Be provided with stopper slot along extending out direction on the described operator wing and secondary wing, be fixedly connected with the locating part that is arranged in stopper slot on the wing groove, described locating part is the wing stop screw.
Described expander is the cam bit that is fixedly installed on driving shaft mechanism, and described cam bit is four, and the expansion orbit with the operator wing and secondary wing coordinates respectively.
Described the first hermetically-sealed construction comprises fixed cover and end cap, the upper end of urceolus is set to the end cap groove, fixed cover and end cap are arranged in the end cap groove, and fixed cover is fixed in the end cap groove by end cap, are provided with the fixed cover sealing ring that coordinates with the driving shaft mechanism outer wall on fixed cover.
Described the second hermetically-sealed construction comprises plug and plug sealing ring, and plug is arranged on the urceolus bottom, and the plug sealing ring is arranged on outer tube inner wall and the plug fitted seal.
Have a plurality of pin-and-holes on described urceolus, be provided with connecting pin in pin-and-hole, be provided with the fixedly sliding sleeve that coordinates with driving shaft mechanism in urceolus, fixedly sliding sleeve is connected with urceolus by connecting pin.
Wing groove shape and wing mechanism that described urceolus lower end arranges are suitable, are provided with the wing pin-and-hole that is connected with wing mechanism in the wing groove, the described operator wing be connected wing and be connected with the wing groove by wing pin, wing pin-and-hole respectively.
Described driving shaft mechanism comprises power transmission shaft and the fixed axis that is fixedly connected with power transmission shaft, and the power transmission shaft inner chamber is communicated with the fixed axis inner chamber; The end that fixed axis is connected with power transmission shaft is provided with the urceolus sealing ring, urceolus sealing ring and outer tube inner wall fitted seal, fixed cover sealing ring and power transmission shaft outer wall fitted seal.
The end that described power transmission shaft is connected with fixed axis is provided with passage, and passage is communicated with space between urceolus and power transmission shaft, and the space is between fixed cover sealing ring and urceolus sealing ring.
The other end of described fixed axis is provided with cam path, and expander is arranged in cam path; Be disposed with runner and fixed axis sealing ring between cam path and fixed axis end, the fixed axis inner chamber is communicated with by runner with the wing groove, fixed axis sealing ring and outer tube inner wall fitted seal.
Described resetting-mechanism comprises back-moving spring and spring groove, and spring groove is arranged in outer tube inner chamber, and back-moving spring is arranged in spring groove and coordinates with fixed axis.
Employing the utility model has the advantage of:
one, the utility model comprises and being arranged in urceolus and along urceolus driving shaft mechanism and resetting-mechanism that driving shaft mechanism is resetted in axial sliding, described urceolus upper end is provided with the first hermetically-sealed construction with driving shaft mechanism outer wall fitted seal, the lower end is provided with the wing groove, the end of urceolus is provided with the second hermetically-sealed construction, wing mechanism is arranged in the wing groove, be provided with on driving shaft mechanism and drive the expander that wing mechanism expands outwardly, and the inner chamber of driving shaft mechanism is communicated with the wing groove, by the first hermetically-sealed construction and the second hermetically-sealed construction, be sealed in urceolus after making the utility model assembling, in drilling process, although wing mechanism carries out the reaming hole operation outwards stretching out, but drilling fluid is difficult for entering the joint part of reamer inside, can not affect the flexibility ratio of wing mechanism, and by the expander drive wing mechanism that arranges separately, when implementing reaming hole, the reaming hole arm is convenient to open, has contractility, can not be subject to the restriction of tool body wall thickness as fixed reamer, therefore the reaming hole size is larger, surpass the maximum reaming hole amplitude 25% of fixed reamer, can be good at satisfying on-the-spot needs.
Two, in the utility model, described wing mechanism comprises the operator wing and secondary wing, the described operator wing is identical two of structure, be symmetricly set in the wing groove, secondary wing is identical two of structure, be symmetricly set in the wing groove, the operator wing and the secondary wing that arrange, adopt this structure when reamer does not also arrive the position of reaming hole, the wing mechanism that arranges draws, only has abovegroundly to give certain pressure could to promote power transmission shaft downward, and pushes the operate wing and secondary wing open, the work of beginning reaming hole can not affect drillng operation; And adopt four wings, stressed more even, more be conducive to carry out the work of reaming hole.
Three, in the utility model, be provided with the expansion orbit that coordinates with expander on the described operator wing and secondary wing, the expansion end of the operator wing is hook solid, and the expansion end of secondary wing is the point of a knife shape, and adopting this structure is to decide by expander size that wing opens, thereby in needs, as long as change corresponding expander, just can suitably enlarge the diameter of reamer reaming hole, it is convenient to change, hook solid coordinates with the point of a knife shape carries out reaming hole work, has improved the reaming hole operating efficiency.
Four, in the utility model, described expansion orbit comprises the straight section of indent and is the segmental arc of one with straight section, before expanding outwardly, expander is positioned on the straight section of indent, the wing mechanism that has guaranteed to arrange draws in, and when expanding outwardly, expander moves on segmental arc, expander coordinates with the expansion orbit of segmental arc realizes the reaming hole operation, is easier to normally carrying out of reaming hole work.
Five, in the utility model, the expansion end of the described operator wing is hook solid, and it is trapezoidal that hook solid is, and trapezoidal upper base is the outer end, and the expansion end of two operator wings arranges in opposite directions, adopt this structure be convenient to operate the wing gathering and carry out the reaming hole operation.
Six, in the utility model, be provided with stopper slot along extending out direction on the described operator wing and secondary wing, be fixedly connected with the locating part that is arranged in stopper slot on the wing groove, described locating part is the wing stop screw, adopt the scope that extends out that this structure is convenient to the tool setting wing mechanism to control, restriction wing unlimited expansion is limited in the diameter range of regulation the wing after expansion.
Seven, in the utility model, described expander is the cam bit that is fixedly installed on driving shaft mechanism, and described cam bit is four, expansion orbit with the operator wing and secondary wing coordinates respectively, adopt four cam bits to drive respectively four wings, easier to be stressed, reliability is higher.
Eight, in the utility model; described the first hermetically-sealed construction comprises fixed cover and end cap; the upper end of urceolus is set to the end cap groove; fixed cover and end cap are arranged in the end cap groove, and fixed cover is fixed in the end cap groove by end cap, are provided with the fixed cover sealing ring that coordinates with the driving shaft mechanism outer wall on fixed cover; under the protection of end cap; in conjunction with the fixed cover sealing ring, guaranteed that further in drilling process drilling fluid is difficult for entering the joint part of reamer inside, can not affect the flexibility ratio of wing.
Nine, in the utility model, described the second hermetically-sealed construction comprises plug and plug sealing ring, and plug is arranged on the urceolus bottom, and the plug sealing ring is arranged on outer tube inner wall and the plug fitted seal, liquid can not be flowed out by the urceolus bottom, liquid can be gone out from the wing concentrated flow.
Ten, in the utility model, have a plurality of pin-and-holes on described urceolus, be provided with connecting pin in pin-and-hole, be provided with the fixedly sliding sleeve that coordinates with driving shaft mechanism in urceolus, fixedly sliding sleeve is connected with urceolus by connecting pin, by the fixedly sliding sleeve that arranges, driving shaft mechanism is slided up and down more stable, and have and make driving shaft mechanism to the effect of urceolus transmitting torque.
11, in the utility model, wing groove shape and wing mechanism that described urceolus lower end arranges are suitable, be provided with the wing pin-and-hole that is connected with wing mechanism in the wing groove, the described operator wing and secondary wing are respectively by the wing pin, the wing pin-and-hole is connected with the wing groove, this structure make wing under the drive of expander when extending out, can rotate along the wing pin, be stress point along wing and expander, the reaming hole operation is more stable, and wing is opened or draw in all and have living space, be convenient to before the beginning reaming hole of going into the well, wing is received in wherein, also be convenient to free-extension when needing reaming hole.
12, in the utility model, described driving shaft mechanism comprises power transmission shaft and the fixed axis that is fixedly connected with power transmission shaft, and the power transmission shaft inner chamber is communicated with the fixed axis inner chamber, adopts this structure, makes the driving shaft mechanism precision higher, is convenient to processing; The end that fixed axis is connected with power transmission shaft is provided with the urceolus sealing ring, urceolus sealing ring and outer tube inner wall fitted seal, and fixed cover sealing ring and power transmission shaft outer wall fitted seal, secondary seal has guaranteed that liquid is difficult for entering, and driving shaft mechanism can normally be slided.
13, in the utility model, the end that described power transmission shaft is connected with fixed axis is provided with passage, passage is communicated with space between urceolus and power transmission shaft, and the space is between fixed cover sealing ring and urceolus sealing ring, the passage that arranges can make liquid by entering the space, reach and increase power transmission shaft top bearing area, power transmission shaft can be moved down faster, the purpose that wing is opened rapidly under expander drives.
14, in the utility model, the other end of described fixed axis is provided with cam path, and expander is arranged in cam path, expander and fixed axis is connected and fixed more reliable; Be disposed with runner and fixed axis sealing ring between cam path and fixed axis end; the fixed axis inner chamber is communicated with by runner with the wing groove; when reaming hole creeps into; liquid in the driving shaft mechanism inner chamber enters the wing groove by runner; can play the effect of cleaning and cooling wing; fixed axis sealing ring and outer tube inner wall fitted seal can avoid liquid to enter the fixed axis bottom, also just can not affect the normal slip of driving shaft mechanism.
15, in the utility model, described resetting-mechanism comprises back-moving spring and spring groove, and spring groove is arranged in outer tube inner chamber, and back-moving spring is arranged in spring groove and coordinates with fixed axis, make back-moving spring stressed more stable when compression, be convenient to resetting of driving shaft mechanism.
Description of drawings
Fig. 1 is the utility model wing mechanism general assembly schematic diagram when extending out
Fig. 2 is the utility model wing mechanism general assembly schematic diagram when drawing in
Fig. 3 is the structural representation of the utility model Fig. 1 or Fig. 2 axial rotation 90 degree
Fig. 4 is the structural representation of the utility model driving shaft mechanism
Fig. 5 is the utility model outer tube structure schematic diagram
Fig. 6 is the structure for amplifying schematic diagram of the utility model operator wing
Fig. 7 is the structure for amplifying schematic diagram of the secondary wing of the utility model
Fig. 8 is the cam path structure for amplifying schematic diagram in Fig. 4
Fig. 9 is the radial section schematic diagram of Fig. 8
Figure 10 is B-B face structural representation in the utility model Fig. 1
Figure 11 be in the utility model Fig. 1 lower end A to structural representation
Be labeled as in figure: 1, power transmission shaft; 2, end cap; 3, packing ring; 4, fixed cover; 5, fixed cover sealing ring; 6, urceolus sealing ring; 7, urceolus; 8, fixing sliding sleeve; 9, connecting pin; 10, back-moving spring; 11, fixed axis; 12, plug sealing ring; 13, cam bit; 14, wing pin; 15, the operator wing; 16, secondary wing; 17, wing stop screw; 18, stop screw packing ring; 19, stopper slot; 20, cam bit screw; 21, fixed axis sealing ring; 22, plug; 23, expansion orbit; 24, spring groove; 25, pin-and-hole; 26, wing groove; 27, wing pin-and-hole; 28, end cap groove; 29, runner; 30, cam path, 31, passage.
The specific embodiment
A kind of reamer, comprise urceolus 7 and wing mechanism, also comprise and being arranged in urceolus 7 and along urceolus 7 driving shaft mechanism and resetting-mechanism that driving shaft mechanism is resetted in axial sliding, described urceolus 7 upper ends are provided with the first hermetically-sealed construction with driving shaft mechanism outer wall fitted seal, the lower end is provided with wing groove 26, the end of urceolus 7 is provided with the second hermetically-sealed construction, wing mechanism is arranged in wing groove 26, be provided with on driving shaft mechanism and drive the expander that wing mechanism expands outwardly, and the inner chamber of driving shaft mechanism is communicated with wing groove 26.
In the utility model, described wing mechanism comprises the operator wing 15 and secondary wing 16, the described operator wing 15 is identical two of structure, be symmetricly set in wing groove 26, secondary wing 16 is identical two of structure, be symmetricly set in wing groove 26, and the operator wing 15 and secondary wing 16 be arranged on same circumference, the external diameter of circumference is identical with the external diameter of urceolus 7.The quantity of the operator wing 15 and secondary wing 16 is not limited to this, but as best mode.
In the utility model, be provided with the expansion orbit 23 that coordinates with expander on the described operator wing 15 and secondary wing 16, but be not limited to this mode of expansion orbit, also can adopt other structure of the prior art to realize; The expansion end of the operator wing 15 is hook solid, and the expansion end of secondary wing 16 is the point of a knife shape, and this is best mode for the structure of the operator wing 15 and secondary wing 16, also can adopt similar wing structure of the prior art.
Further, described expansion orbit 23 comprises the straight section of indent and is the segmental arc of one with straight section, and before expanding outwardly, expander is positioned on the straight section of indent, and when expanding outwardly, expander moves on segmental arc.
In the utility model, the expansion end of the described operator wing 15 is hook solid, and it is trapezoidal that hook solid is, and trapezoidal upper base is the outer end, and the expansion end of two operator wings arranges in opposite directions, but is not limited to this shape.
In the utility model, be provided with stopper slot 19 along extending out direction on the described operator wing 15 and secondary wing 16, be fixedly connected with the locating part that is arranged in stopper slot 19 on wing groove 26, locating part coordinates the expansion ratio that wing is extended out to limit with stopper slot 19, and described locating part is wing stop screw 17.
In the utility model, described expander is the cam bit 13 that is fixedly installed on driving shaft mechanism, and described cam bit 13 is four, and the expansion orbit 23 with the operator wing 15 and secondary wing 16 coordinates respectively, and expander also is confined to cam bit, and quantity also is not limited to four.
In the utility model, described the first hermetically-sealed construction comprises fixed cover 4 and end cap 2, the upper end of urceolus 7 is set to end cap groove 28, fixed cover 4 and end cap 2 are arranged in end cap groove 28, fixed cover 4 is fixed in end cap groove 28 by end cap 2, is provided with the fixed cover sealing ring 5 that coordinates with the driving shaft mechanism outer wall on fixed cover 4.
In the utility model, described the second hermetically-sealed construction comprises plug 22 and plug sealing ring 12, and plug 22 is arranged on urceolus 7 bottoms, and plug sealing ring 12 is arranged on urceolus 7 inwalls and plug 22 fitted seal.
In the utility model, have a plurality of pin-and-holes 25 on described urceolus 7, be provided with connecting pin 9 in pin-and-hole 25, be provided with the fixedly sliding sleeve 8 that coordinates with driving shaft mechanism in urceolus 7, fixedly sliding sleeve 8 is connected with urceolus 7 by connecting pin 9.
In the utility model, wing groove 26 shapes and wing mechanism that described urceolus 7 lower ends arrange are suitable, be provided with the wing pin-and-hole 27 that is connected with wing mechanism in wing groove 26, the described operator wing 15 be connected wing 16 and be connected with wing groove 26 by wing pin 14, wing pin-and-hole 27 respectively.
In the utility model, described driving shaft mechanism comprises power transmission shaft 1 and the fixed axis 11 that is fixedly connected with power transmission shaft 1, and power transmission shaft 1 inner chamber is communicated with fixed axis 11 inner chambers; The end that fixed axis 11 is connected with power transmission shaft 1 is provided with urceolus sealing ring 6, urceolus sealing ring 6 and urceolus 7 inwall fitted seal, fixed cover sealing ring 5 and power transmission shaft 1 outer wall fitted seal.
In the utility model, the end that described power transmission shaft 1 is connected with fixed axis 11 is provided with passage 31, and passage 31 is communicated with space between urceolus 7 and power transmission shaft 1, and the space is between fixed cover sealing ring 5 and urceolus sealing ring 6.
In the utility model, the other end of described fixed axis 11 is provided with cam path 30, and expander is arranged in cam path 30; Be provided with runner 29 and fixed axis sealing ring 21 between cam path 30 and fixed axis 11 ends, fixed axis 11 inner chambers are communicated with by runner 29 with wing groove 26, fixed axis sealing ring 21 and urceolus 7 inwall fitted seal.
In the utility model, described resetting-mechanism comprises back-moving spring 10 and spring groove 24, and spring groove 24 is arranged in urceolus 7 inner chambers, and back-moving spring 10 is arranged in spring groove 24 and coordinates with fixed axis 11.
operating principle of the present utility model is: in the time of use, upper end of the present utility model is connected on drilling tool, G.I.H, need the well section of reaming hole when arrival after, slush pump increases discharge capacity, sprain to press and cause pump pressure to raise in the down-hole, aboveground pressure promotes power transmission shaft 1 and moves down, power transmission shaft 1 compression reseting spring 10 continues descending, be arranged on that the cam bit 13 of power transmission shaft 1 lower end is descending to be contacted with the segmental arc of the expansion orbit 23 of the operator wing 15 and secondary wing 16 respectively, due to the operator wing 15, the internal diameter of the circumference that secondary wing 16 forms is less than cam bit 13 external diameters, deficiency so that cam bit 13 pass through, so cam bit 13 promotes the operator wing 15 simultaneously and secondary wing 16 is expanded outward, the operator wing 15 and secondary wing 16 are opened, under the drive of rig, continue to creep into, because the operator wing outwards opens, strengthened the diameter of reamer, therefore just can enlarge the diameter of well when creeping into, when needs further enlarge the diameter of well, the utility model is taken out ground, change larger cam bit 13, G.I.H again, and repeat the work progress of above-mentioned reaming hole, because the model of cam bit 13 is larger, therefore when pushing the operator wing 15 and secondary wing 16 open, the opening width of the operator wing 15 and secondary wing 16 will be larger, therefore the diameter that cuts well will be larger, therefore can play the technique effect of further expansion well.
Embodiment 2
Urceolus 7 is cylindrical structure, there are wing groove 26 and the wing pin-and-hole 27 that is connected the operator wing 15 and secondary wing 16 in cylindrical lower end, the operator wing 15 and secondary wing 16 are connected in wing groove 26 by wing pin-and-hole 27, there is end cap groove 28 rear end of urceolus 7, end cap 2 after assembling is arranged in end cap groove 28, front end at end cap 2 has fixed cover 4, is provided with fixed cover sealing ring 5 between fixed cover 4 and power transmission shaft 1; Be provided with pin-and-hole 25 and spring groove 24 in the stage casing of urceolus 7, after assembling the utility model, by pin-and-hole 25 by connecting pin 9 fixed outer cylinders 7 and fixing sliding sleeve 8; The lower end of power transmission shaft 1 is that the reaming hole end is provided with cam path 30 and runner 29, cam path 30 is used for laying cam bit 13, power transmission shaft 1 is connected with fixed axis 11, the cylindrical of fixed axis 11 is all directions structure, outer surface cover at fixed axis 11 has fixedly sliding sleeve 8, and fixedly sliding sleeve 8 is from all directions shape in cylindrical, and the outer all directions structure of fixed axis 11 matches with the fixing interior all directions structure of sliding sleeve 8, the all directions structure that arranges can play and slide up and down, and makes power transmission shaft 1 to the effect of urceolus 7 transmitting torques.
The passage 31 that arranges on power transmission shaft can make liquid pass through, and can play the long-pending effect of enlarging section, reaches the area that increases power transmission shaft 1 upper pressure, promotes power transmission shaft 1, and cam bit 13 is moved downward, and pushes the operator wing 15, secondary wing 16 open; The runner 29 of lower end can play the effect of cleaning and cooling wing when reaming hole creeps into; Are spring grooves 24 in the lower end of fixed axis 11, are provided with back-moving spring 10; Fixedly be provided with fixed pin holes on sliding sleeve 8 bodies, be used for and being fixedly connected with of urceolus 7; Be fixed with respectively the expansion orbit of 13, one cam bits of four cam bits, 13 corresponding wings on four faces of the lower end of power transmission shaft 1 by cam bit screw 20.
Wing mechanism is made of the operator wing 15 and secondary wing 16, the front end of the operator wing 15 is the hook type shape, curved configuration partly has backward trapezoidal, owing to being symmetrical arranged two operator wings 15, so, the trapezium structure that arranges is when drawing two operator wings 15 in, and two trapezium structures can hold mutually, and the operator wing diameter that reaches after gathering is fully consistent with urceolus.The front end of secondary wing 16 is straight pointed shape, straight pointed shape also has backward trapezoidal, owing to being symmetrical arranged two secondary wings 16, so, the trapezium structure that arranges is when drawing two secondary wings 16 in, two trapezium structures also can hold mutually, and the secondary wing diameter that reaches after gathering is fully consistent with urceolus.The structure of drawing in has a lot, and therefore, the structure of wing mechanism is not limited to this.Be provided with expansion orbit 23 on the operator wing 15 and secondary wing 16, wing pin 14 passes pin-and-hole and the wing pin-and-hole 27 of the operator wing 15, the fixing operator wing 15, and secondary wing 16 carries out same fixing; Two symmetrical installations of the wing 15 of operating, two symmetrical installations of secondary wing 16, when 15 gathering of the later operator wing is installed, the crotch part of the curved configuration part of its front end symmetrical wing of trapezoidal mutual income backward; Also be provided with stopper slot 19 on major and minor wing, be connected with wing stop screw 17 in stopper slot, wing stop screw 17 and stop screw packing ring 18 are fixed the wing limited block, carry out spacing to the operator wing 15 and secondary wing 16, restriction wing unlimited expansion is limited in the diameter range of regulation the wing after expansion.
Embodiment 3
Assembling sequence of the present utility model is:
At the urceolus 7 internal thread directions back-moving spring 10 of packing into, then put into fixedly sliding sleeve 8, fixedly sliding sleeve 8 is from all directions shape in cylindrical, the outer all directions structure of fixed axis 11 matches with the fixing interior all directions structure of sliding sleeve 8; Urceolus sealing ring 6 is installed on power transmission shaft 1, after fixed cover 4 is loaded onto fixed cover sealing ring 5, power transmission shaft 1 is put into urceolus 7 from urceolus 7 internal thread directions, place packing ring 3 on urceolus 7 internal thread end faces, put into again end cap 2, end cap 2 to be threaded, is then put into pin-and-hole 25 to connecting pin 9 with urceolus 7.
Four cam bits 13 are installed on respectively in the cam path 30 on four faces of lower end of power transmission shaft 1, then by cam bit screw 20, the pin-and-hole in cam bit 13 and cam path 30 are connected; Plug 22 and power transmission shaft 1 are threaded connection.
Claims (10)
1. reamer, comprise urceolus (7) and wing mechanism, it is characterized in that: also comprise being arranged in urceolus (7) and along urceolus (7) driving shaft mechanism and resetting-mechanism that driving shaft mechanism is resetted in axial sliding, described urceolus (7) upper end is provided with the first hermetically-sealed construction with driving shaft mechanism outer wall fitted seal, the lower end is provided with wing groove (26), the end of urceolus (7) is provided with the second hermetically-sealed construction, wing mechanism is arranged in wing groove (26), be provided with on driving shaft mechanism and drive the expander that wing mechanism expands outwardly, and the inner chamber of driving shaft mechanism is communicated with wing groove (20).
2. reamer according to claim 1, it is characterized in that: described wing mechanism comprises the operator wing (15) and secondary wing (16), the described operator wing (15) is identical two of structure, be symmetricly set in wing groove (20), secondary wing (16) is identical two of structure, be symmetricly set in wing groove (20), and the operator wing (15) and secondary wing (16) be arranged on same circumference, the external diameter of circumference is identical with the external diameter of urceolus (7).
3. reamer according to claim 2, it is characterized in that: be provided with the expansion orbit (23) that coordinates with expander on the described operator wing (15) and secondary wing (16), the expansion end of the operator wing (15) is hook solid, and the expansion end of secondary wing is the point of a knife shape.
4. reamer according to claim 3, it is characterized in that: described expansion orbit (23) comprises the straight section of indent and is the segmental arc of one with straight section, and before expanding outwardly, expander is positioned on the straight section of indent, when expanding outwardly, expander moves on segmental arc.
5. reamer according to claim 4, it is characterized in that: described expander is the cam bit (13) that is fixedly installed on driving shaft mechanism, described cam bit (13) is four, and the expansion orbit (23) with the operator wing (15) and secondary wing (16) coordinates respectively.
6. the described reamer of any one according to claim 1-5, it is characterized in that: described the first hermetically-sealed construction comprises fixed cover (4) and end cap (2), the upper end of urceolus (7) is set to end cap groove (28), fixed cover (4) and end cap (2) are arranged in end cap groove (28), fixed cover (4) is fixed in end cap groove (28) by end cap (2), is provided with the fixed cover sealing ring (5) that coordinates with the driving shaft mechanism outer wall on fixed cover (4).
7. reamer according to claim 6, it is characterized in that: have a plurality of pin-and-holes (25) on described urceolus (7), be provided with connecting pin (9) in pin-and-hole (25), be provided with the fixedly sliding sleeve (8) that coordinates with driving shaft mechanism in urceolus (7), fixedly sliding sleeve (8) is connected with urceolus (7) by connecting pin (9).
8. 2,3,4,5 or 7 described reamers according to claim 1,, it is characterized in that: described driving shaft mechanism comprises power transmission shaft (1) and the fixed axis (11) that is fixedly connected with power transmission shaft (1), and power transmission shaft (1) inner chamber is communicated with fixed axis (11) inner chamber; The end that fixed axis (11) is connected with power transmission shaft (1) is provided with urceolus sealing ring (6), urceolus sealing ring (6) and urceolus (7) inwall fitted seal, fixed cover sealing ring (5) and power transmission shaft (1) outer wall fitted seal.
9. reamer according to claim 8, it is characterized in that: the end that described power transmission shaft (1) is connected with fixed axis (11) is provided with passage (31), passage (31) is communicated with space between urceolus (7) and power transmission shaft (1), and the space is positioned between fixed cover sealing ring (5) and urceolus sealing ring (6).
10. reamer according to claim 9, it is characterized in that: described resetting-mechanism comprises back-moving spring (10) and spring groove (24), spring groove (24) is arranged in urceolus (7) inner chamber, and back-moving spring (10) is arranged in spring groove (24) and coordinates with fixed axis (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648500 CN202970484U (en) | 2012-11-30 | 2012-11-30 | Hole expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220648500 CN202970484U (en) | 2012-11-30 | 2012-11-30 | Hole expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970484U true CN202970484U (en) | 2013-06-05 |
Family
ID=48511572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220648500 Expired - Fee Related CN202970484U (en) | 2012-11-30 | 2012-11-30 | Hole expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943625A (en) * | 2012-11-30 | 2013-02-27 | 中国石油集团川庆钻探工程有限公司 | Hole expander |
-
2012
- 2012-11-30 CN CN 201220648500 patent/CN202970484U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943625A (en) * | 2012-11-30 | 2013-02-27 | 中国石油集团川庆钻探工程有限公司 | Hole expander |
| CN102943625B (en) * | 2012-11-30 | 2015-05-27 | 中国石油集团川庆钻探工程有限公司 | Hole expander |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105283626B (en) | Method and apparatus for alleviating underground twisting vibration | |
| CN104879090A (en) | Fast-drilling composite bridge plug adopting single-slip double-acting structure | |
| CN203701977U (en) | Diameter-variable underreaming drill and drilling machine | |
| CN102383726A (en) | Air down-the-hole hammer centering casing drill | |
| CN102678059B (en) | Mechanical type drilling tool accumulation of energy protection instrument | |
| CN204782778U (en) | Cone type reamer | |
| CN202850858U (en) | Hollow spherical joint connection radial well jet drilling well oriented steering tool | |
| CN202970482U (en) | Blade mechanism suitable for hole expander | |
| CN102943625B (en) | Hole expander | |
| CN202970484U (en) | Hole expander | |
| US20120012337A1 (en) | Crawler System for an Earth Boring System | |
| CN202970474U (en) | Transmission shaft mechanism suitable for hole expander | |
| CN103362449A (en) | Retraction type long stroke hydraulic power pressurizer | |
| CN203701978U (en) | Diameter-variable underreaming drill and drilling machine | |
| CN201723198U (en) | Double-opening differential pressure sliding sleeve | |
| CN201280899Y (en) | Downhole pipe column length compensation apparatus | |
| CN202970483U (en) | Outer cylinder suitable for hole expander | |
| CN110056309B (en) | Fixed-shaft rotary positive displacement power tool | |
| CN102654035A (en) | Bottom drilling tool combination structure for coiled tubing drilling or drilling | |
| CN202596585U (en) | Energy-storage protection tool for mechanical drilling tool | |
| US20150008041A1 (en) | High Stiffness Tool For Expanding A Wellbore | |
| CN104712275B (en) | Protective wall expansion conical head of geological drilling corrugated expansion pipe | |
| CN107246238B (en) | Integrated impact downhole power drilling tool | |
| CN202467657U (en) | Well drilling hydraulic pressure reaming device | |
| CN202483513U (en) | Sliding sleeve for layered reconstruction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20211130 |