CN203584310U - Drill bit with rotary teeth - Google Patents
Drill bit with rotary teeth Download PDFInfo
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- CN203584310U CN203584310U CN201320724116.0U CN201320724116U CN203584310U CN 203584310 U CN203584310 U CN 203584310U CN 201320724116 U CN201320724116 U CN 201320724116U CN 203584310 U CN203584310 U CN 203584310U
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- rotary teeth
- drill bit
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- wing
- rotary
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- 238000005520 cutting process Methods 0.000 claims abstract description 31
- 230000036346 tooth eruption Effects 0.000 claims abstract description 28
- 239000011159 matrix material Substances 0.000 claims description 25
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical group [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 2
- 229910001573 adamantine Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a drill bit with rotary teeth. The drill bit comprises a connector, a base body, blades and cutting teeth. The cutting teeth are arranged on the tool faces of the blades, the heading direction of the drill bit in the using process is taken as the front, and each blade is provided with an inner cone portion, a nose portion and an outer cone portion from the position, closest to the center of the front end face of the base body, of the tool face on the front portion of the blade to the tool face on the rear portion of the blade in sequence. At least one rotary tooth is arranged on the tool face of each blade, the rotary teeth are the cutting teeth capable of rotating around own central axes, and the rotary teeth are arranged in rotary tooth holes in the blades through a rotary device. Due to the fact that the at least one rotary tooth is arranged on the tool face of each blade, when the drill bit is used for cutting the stratum, the whole circumferences of the cutting end faces of the rotary teeth can cut the stratum, the use ratio of the cutting end faces of the rotary teeth is improved, therefore, the service life of the drill bit is prolonged, the drilling capacity of one single drill bit is improved obviously, the high drilling speed of the drill bit is kept, the well drilling period is shortened, and well drilling cost is saved.
Description
Technical field
The utility model relates to a kind of oil and gas well drilling drill bit, relate in particular to a kind of have can be in drilling process the rotary teeth drill bit of rotary teeth of its axis rotation of automatic winding.
Background technology
In recent years, the requirement of the construction cycle of each oil field to petroleum gas and safety is more and more higher, the various tool matching is with it greatly improved in performance and on application life, and the rate of penetration to drill bit in drilling process and the requirement of drilling depth are also more and more higher.Such as, PDC drill bit (abbreviation of polycrystalline diamond compact bit) has distinctive to stratum cutting principle, can significantly improve the rate of penetration of drill bit, becomes the first-selected drill bit of drilling speed.
In recent years, along with the improvement of material and manufacturing process, PDC drill bit is more and more wider to the compliance on stratum.The fixing soldering of cutting teeth of traditional PD C drill bit is on drill bit wing, and along with the rising of drill bit working time, cutting teeth wearing and tearing can strengthen gradually, creeps into rate of penetration and also decreases, until rate of penetration is crossed slow and pulled out of hole.Because the fixing soldering of cutting teeth is on drill bit wing, using under normal circumstances, until while reaching drilling life of bit, the utilization rate of cutting teeth is also only divided (exposing wing body part) for it goes out blade.Its installation is imbedded the cutting teeth (generally accounting for 50% left and right of whole cutting teeth) of wing body part owing to not participating in cutting stratum, until drilling life of bit is complete, also substantially remain intact, thereby cause the application life of drill bit shorter, the drilling depth scarce capacity of single drill bit, drill bit rate of penetration can reduce gradually, extend drilling period, improved drilling cost.
Utility model content
The purpose of this utility model is just to provide in order to address the above problem a kind of rotary teeth drill bit that can significantly improve cutting teeth utilization rate.
In order to achieve the above object, the utility model has adopted following technical scheme:
Rotary teeth drill bit described in the utility model comprises joint, matrix, wing and cutting teeth, described cutting teeth is located on the knife face of described wing, direction of advance while using take described drill bit is as front, and described wing is started to be provided with successively interior tapering, nose and outer tapering to rear portion knife face by the most close described matrix front end end face of anterior knife face center; On the knife face of each described wing, be at least provided with a rotary teeth, described rotary teeth is the cutting teeth that can rotate around self axis, and described rotary teeth is installed in the rotation perforation on described wing by whirligig.
Above-mentioned rotary teeth is owing to adopting rotary mounting structure, so in drill bit drilling process, rotary teeth can be around self axis automatic rotation under the effect of formation reaction and whirligig, the whole circumference of its cutting end all can participate in stratum cutting, thereby keeps for a long time the high cutting ability continuing to stratum.
In order to increase the probability of the lasting cutting ability of utilizing rotary teeth, described rotary teeth is located at the nose of described wing or/and on outer tapering.Cutting teeth on the interior tapering of wing is owing to being positioned at recess, so utilization rate is not high, rotary teeth can be installed.
Particularly, described rotary teeth is PDC composite teeth, thermally-stabilised glomerocryst tooth, cubic boron nitride tooth or hard-metal insert.
Preferably, the length of described rotation perforation is greater than the length of described rotary teeth, the outer ledge of described rotation perforation is provided with the baffle plate being installed on described wing, described baffle plate does not depart from described rotation perforation for the outboard end of blocking described rotary teeth, between the outboard end of described rotary teeth and described baffle plate, leaves space.This structure is convenient to processing and rotary teeth is installed, and also can guarantee that rotary teeth does not depart from rotation perforation simultaneously.
According to practical application request, described baffle plate is tungsten carbide tool baffle plate or alloy steel baffle plate, and described baffle plate is directly welded on described wing or by screw and is installed on described wing; The hole wall of described rotation perforation is tungsten carbide tool, alloy steel or contains adamantine complex.
Particularly, described rotary teeth be shaped as standard cylindrical, bottom indent is cylindrical, bottom evagination is cylindrical, normal cone shape, bottom indent cone-shaped or bottom evagination cone-shaped; When described rotary teeth be shaped as the cylindrical or bottom indent cone-shaped of bottom indent time, the bottom interior wall of described rotation perforation is provided with corresponding protruding rotating shaft, when described rotary teeth be shaped as the cylindrical or bottom evagination cone-shaped of bottom evagination time, the bottom interior wall of described rotation perforation is provided with corresponding groove.
As preferably, if the distance take described matrix front end end face central point as the center of circle, take described rotary teeth central point to the described center of circle as the circle of radius be circle G, axis and the angle of described round G between the outer tangent line of described rotary teeth central point of corresponding described rotary teeth are H, and described H at described round G planar; When the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually near described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at described round G and 5 °≤H≤33 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 1 °, 2 °, 3 ° or 5 °; Or, when the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually near described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at described round G and 12 °≤H≤26 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 0.5 °, 0.75 °, 1 ° or 1.5 °; When the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually away from described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at outside described round G and 5 °≤H≤33 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 1 °, 2 °, 3 ° or 5 °; Or, when the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually away from described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at outside described round G and 12 °≤H≤26 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 0.5 °, 0.75 °, 1 ° or 1.5 °.In said structure, according to the different arrangement modes of rotary teeth, each rotary teeth adopts different setting angles, can make up as far as possible different arrangement modes and causes the deficiency of different stock-removing efficiencies, thereby realize the optimization support of efficient, the lasting cutting ability of rotary teeth to whole drill bit.
According to practical application request, described whirligig is ball bearing, roller bearing, needle bearing, sliding bearing or/and bar shaped slip width, and described whirligig is located in described rotation perforation and between described rotary teeth and described rotary teeth hole wall.These whirligigs are conventional whirligig, according to application, need there be more changeableization, as long as meet, rotary teeth can be rotated freely in drilling process; Or, also can select different single whirligigs or the combination of multiple whirligig according to the required dynamics of its automatic rotation.
Particularly, described wing is steel body wing, carcass wing or other synthetic metal wing.
The beneficial effects of the utility model are:
The utility model by least arranging a rotary teeth on the knife face of each wing, make drill bit when cutting stratum, the whole circumference of the cutting end face of rotary teeth all can participate in the cutting to stratum, improved the utilization rate of its cutting end face, thereby significantly improved the application life of drill bit, significantly improved the drilling depth ability of single drill bit, and kept higher drill bit to enter drilling speed degree, shorten drilling period, saved drilling cost.The rotary teeth structure of drill bit described in the utility model is applicable to all drill bits with cutting teeth as oil and gas well drilling, geological prospecting or mine probing drill bit.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of rotary teeth drill bit described in the utility model;
Fig. 2 is the axial sectional view of rotary teeth drill bit described in the utility model at main perspective degree, the half of only having got whole sectional view in figure, and second half is symmetrical structure;
Fig. 3 is one of structural representation between rotary teeth described in the utility model and wing;
Fig. 4 is two of structural representation between rotary teeth described in the utility model and wing;
Fig. 5 is three of structural representation between rotary teeth described in the utility model and wing;
Fig. 6 is four of structural representation between rotary teeth described in the utility model and wing;
Fig. 7 is five of structural representation between rotary teeth described in the utility model and wing;
Fig. 8 is six of structural representation between rotary teeth described in the utility model and wing;
Fig. 9 is seven of structural representation between rotary teeth described in the utility model and wing;
Figure 10 is eight of structural representation between rotary teeth described in the utility model and wing;
Figure 11 is one of mounting structure schematic diagram of baffle plate described in the utility model;
Figure 12 be baffle plate described in the utility model mounting structure schematic diagram two;
Figure 13 is the plan structure schematic diagram of one of rotary teeth arrangement mode of rotary teeth drill bit described in the utility model;
Figure 14 is two plan structure schematic diagram of the rotary teeth arrangement mode of rotary teeth drill bit described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described in detail:
As depicted in figs. 1 and 2, rotary teeth drill bit described in the utility model comprises joint 1, matrix 3, wing 5 and cutting teeth 6, joint 1 is one-body molded with matrix 3, matrix 3 is provided with breaker slot 2, cutting teeth 6 is located on the knife face of wing 5 and is distributed on cloth tooth trace 7, direction of advance while using take described drill bit is as front (top in Fig. 2), it is main cutting tooth 61 that front end extends near the cutting teeth 6 on the wing 5 of the front end end face central point of matrix 1, front end is rear row's cutting teeth 62 apart from the cutting teeth 6 on the front end end face central point of matrix 1 wing 5 far away, matrix 3 between adjacent wing 5 is provided with hydrophthalmia 8, the rear portion of wing 5 is gauge 4, wing 5 is started to be provided with successively interior tapering C to rear portion knife face by the front end end face center of the most close matrix 3 of anterior knife face, nose D and outer tapering E, said structure is all the conventional structure of drill bit, improvement of the present utility model is: in conjunction with Fig. 1-Figure 10 and Figure 13, Figure 14, nose D on the knife face of each wing 5 is or/and be at least provided with a rotary teeth 9 on outer tapering E, rotary teeth 9 is the cutting teeth 6 that can rotate around self axis, rotary teeth 9 is installed on rotation perforation on wing 5 (because rotary teeth 9 is installed in this hole by whirligig, so this hole is not shown in the drawings) in, that is to say, rotary teeth 9 is also the one in cutting teeth 6, be with conventional cutting teeth 6 differences: conventional cutting teeth 6 is fixedly installed on wing 5, rotary teeth 9 rotations are installed on wing 5.
As shown in Fig. 1-Figure 12, in mounting structure between rotary teeth 9 and wing 5, the length of rotation perforation is greater than the length of rotary teeth 9, the outer ledge of rotation perforation is provided with the baffle plate 15 being installed on wing 5, baffle plate 15 does not depart from rotation perforation for the outboard end of blocking rotary teeth 9, between the outboard end of rotary teeth 9 and baffle plate 15, leave space, so that rotary teeth 9 rotates freely.As shown in Fig. 3-Fig. 7, the outside end face of rotary teeth 9 is provided with the cutting lay 14(on cutting stratum such as diamond layer), this structure is consistent with the structure of traditional cutting teeth 6.
Particularly, the shape of rotary teeth 9 and and wing 5 between mounting structure have a lot of variations, enumerate several preferred exemplary below:
As shown in Figure 3, rotary teeth 9 be shaped as bottom indent cylindrical, the bottom interior wall of rotation perforation is provided with corresponding protruding rotating shaft 10, the inner groovy of the bottom of rotary teeth 9 is enclosed within rotating shaft 10, between the bottom of the bottom of rotary teeth 9 and rotation perforation, be equipped with ball bearing 11 between the groove walls of the bottom of rotary teeth 9 and rotating shaft 10, baffle plate 15 is installed on wing 5 by screw 16.In this structure, the structure of baffle plate 15 as shown in figure 12, himself is provided with installing hole 18, need install by screw 16.
As shown in Figure 4, rotary teeth 9 be shaped as bottom indent cylindrical, the bottom interior wall of rotation perforation is provided with corresponding protruding rotating shaft 10, the inner groovy of the bottom of rotary teeth 9 is enclosed within rotating shaft 10, between the bottom of the bottom of rotary teeth 9 and rotation perforation, be provided with ball bearing 11, between the groove walls of the bottom of rotary teeth 9 and rotating shaft 10, be provided with sliding bearing 13, baffle plate 15 is installed on wing 5 by the installation shaft 17 of himself and soldering is fixed.In this structure, the structure of baffle plate 15 as shown in figure 12, himself is provided with installation shaft 17.
As shown in Figure 5, rotary teeth 9 be shaped as standard cylindrical, between the bottom of the bottom of rotary teeth 9 and rotation perforation, be provided with ball bearing 11, between the circumferential surface of rotary teeth 9 and the circumferential wall of rotation perforation, be provided with roller bearing 12, baffle plate 15 is installed on wing 5 by screw 16.In this structure, as shown in Figure 8, initial and end roller bearing 12 is 110 °～180 ° with the scope of the included angle A that the central axis of rotary teeth 9 forms, and that is to say, the half between the circumferential surface of rotary teeth 9 and the circumferential wall of rotation perforation is provided with roller bearing 12 with interior space; Or, as shown in Figure 9, between adjacent roller bearing 12, be also provided with bar shaped and slide 19, the slide scope of 19 included angle A that form with the central axis of rotary teeth 9 of initial and end roller bearing 12 or bar shaped is 110 °～180 °, that is to say, the half between the circumferential surface of rotary teeth 9 and the circumferential wall of rotation perforation is provided with roller bearing 12 and bar shaped with interior space and slides 19.
As shown in Figure 6, rotary teeth 9 be shaped as bottom evagination cylindrical, the bottom interior wall of rotation perforation is provided with corresponding groove (unmarked in figure), the outer projection of the bottom of rotary teeth 9 is placed in this groove, between the bottom of the bottom of rotary teeth 9 and rotation perforation, be provided with ball bearing 11,, rotary teeth 9 bottom outer projection and rotation perforation bottom groove between leave space, between the circumferential wall of the circumferential surface of rotary teeth 9 and rotation perforation, be provided with roller bearing 12, baffle plate 15 is installed on wing 5 by screw 16.In this structure, as shown in Figure 8, initial and end roller bearing 12 is 110 °～180 ° with the scope of the included angle A that the central axis of rotary teeth 9 forms, and that is to say, the half between the circumferential surface of rotary teeth 9 and the circumferential wall of rotation perforation is provided with roller bearing 12 with interior space; Or, as shown in Figure 9, between adjacent roller bearing 12, be also provided with bar shaped and slide 19, the slide scope of 19 included angle A that form with the central axis of rotary teeth 9 of initial and end roller bearing 12 or bar shaped is 110 °～180 °, that is to say, the half between the circumferential surface of rotary teeth 9 and the circumferential wall of rotation perforation is provided with roller bearing 12 and bar shaped with interior space and slides 19.
As shown in Figure 7, rotary teeth 9 be shaped as normal cone shape, between the bottom of the bottom of rotary teeth 9 and rotation perforation, be provided with ball bearing 11, between the circumferential surface of rotary teeth 9 and the circumferential wall of rotation perforation, be provided with roller bearing 12, baffle plate 15 is installed on wing 5 by screw 16.In this structure, as shown in figure 10, between adjacent roller bearing 12, be also provided with bar shaped and slide 19.
In addition, the shape of rotary teeth 9 can also be bottom indent cone-shaped or bottom evagination cone-shaped, can be also other shape, as long as meet the condition that rotary teeth 9 can rotate freely; Whirligig can be also needle bearing or other parts, as long as meet the condition that rotary teeth 9 can rotate freely.
According to the different arrangement modes of rotary teeth 9, each rotary teeth 9 adopts different setting angles, can make up as far as possible different arrangement modes and cause the deficiency of different stock-removing efficiencies, thereby realize the optimization support of efficient, the lasting cutting ability of rotary teeth to whole drill bit, concrete situation is as follows:
As shown in Figure 1, Figure 2, shown in Figure 13 and Figure 14, if the distance take the central point of matrix 3 front end end faces as the center of circle, take the central point of rotary teeth 9 to this center of circle is an imaginary circles as the circle of radius as circle G(, not shown, but can understand by reference to the accompanying drawings), the axis of corresponding rotary teeth 9 and the angle of circle G between the outer tangent line of the central point of rotary teeth 9 are that H(is a virtual angle, not shown, but can understand by reference to the accompanying drawings), H is in circle G institute planar.
Below in conjunction with the different structure of two kinds of different arrangement modes of accompanying drawing division rotary teeth 9:
Shown in Fig. 2 and Figure 13, when the arrangement mode of the corresponding rotation tooth 9 on adjacent wing 5 is " in the direction of rotation (counter clockwise direction in Figure 13) when described drill bit is used gradually the central point near matrix 3 front end end faces ", it is rotary teeth 90 corresponding on different wing 5, rotary teeth 91, rotary teeth 92, rotary teeth 93 and rotary teeth 94(are in order to embody putting in order between the rotary teeth 9 on different wings 5, here by different numberings, refer to different rotary teeth 9) while arranging by the mode of Figure 13, the cutting end of rotary teeth 9 is positioned at round G and 5 °≤H≤33 °, on two adjacent wings 5, the H of corresponding rotary teeth differs 1 °, 2 °, 3 ° or 5 °, or the cutting end of rotary teeth 9 is positioned at round G and 12 °≤H≤26 °, on two adjacent wings 5, the H of corresponding rotary teeth differs 0.5 °, 0.75 °, 1 ° or 1.5 °.
Shown in Fig. 2 and Figure 14, when the arrangement mode of the corresponding rotation tooth 9 on adjacent wing 5 is " in the direction of rotation (counter clockwise direction in Figure 14) when described drill bit is used gradually the central point away from matrix 3 front end end faces ", it is rotary teeth 95 corresponding on different wing 5, rotary teeth 96, rotary teeth 97, rotary teeth 98 and rotary teeth 99(are in order to embody putting in order between the rotary teeth 9 on different wings 5, here by different numberings, refer to different rotary teeth 9) while arranging by the mode of Figure 14, the cutting end of rotary teeth 9 is positioned at outside round G and 5 °≤H≤33 °, on two adjacent wings 5, the H of corresponding rotary teeth 9 differs 1 °, 2 °, 3 ° or 5 °, or the cutting end of rotary teeth 9 is positioned at outside round G and 12 °≤H≤26 °, on two adjacent wings 5, the H of corresponding rotary teeth 9 differs 0.5 °, 0.75 °, 1 ° or 1.5 °.
In conjunction with Figure 13 and Figure 14, when the arrangement mode of the corresponding rotation tooth 9 on adjacent wing 5 is " direction of rotation when described drill bit is used (Figure 13 with counter clockwise direction) in Figure 14 upper with the central point of matrix 3 front end end faces apart from identical ", the cutting end of rotary teeth 9 is positioned at that round G is upper and H equals or substantially equal 0 °, this structure does not illustrate in the drawings, but easily understands.
According to practical application request, rotary teeth 9 is PDC composite teeth, thermally-stabilised glomerocryst tooth, cubic boron nitride tooth or hard-metal insert; Baffle plate 15 is tungsten carbide tool baffle plate or alloy steel baffle plate, and the hole wall of rotation perforation is tungsten carbide tool, alloy steel or contains adamantine complex; Wing 5 is steel body wing, carcass wing or other synthetic metal wing.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (9)
1. a rotary teeth drill bit, comprise joint, matrix, wing and cutting teeth, described cutting teeth is located on the knife face of described wing, direction of advance while using take described drill bit is as front, described wing is started to be provided with successively interior tapering to rear portion knife face by the most close described matrix front end end face of anterior knife face center, nose and outer tapering, it is characterized in that: on the knife face of each described wing, be at least provided with a rotary teeth, described rotary teeth is the cutting teeth that can rotate around self axis, described rotary teeth is installed in the rotation perforation on described wing by whirligig.
2. rotary teeth drill bit according to claim 1, is characterized in that: described rotary teeth is located at the nose of described wing or/and on outer tapering.
3. rotary teeth drill bit according to claim 1, is characterized in that: described rotary teeth is PDC composite teeth, thermally-stabilised glomerocryst tooth, cubic boron nitride tooth or hard-metal insert.
4. according to the rotary teeth drill bit described in claim 1,2 or 3, it is characterized in that: the length of described rotation perforation is greater than the length of described rotary teeth, the outer ledge of described rotation perforation is provided with the baffle plate being installed on described wing, described baffle plate does not depart from described rotation perforation for the outboard end of blocking described rotary teeth, between the outboard end of described rotary teeth and described baffle plate, leaves space.
5. rotary teeth drill bit according to claim 4, is characterized in that: described baffle plate is tungsten carbide tool baffle plate or alloy steel baffle plate, and described baffle plate is directly welded on described wing or by screw and is installed on described wing.
6. according to the rotary teeth drill bit described in claim 1,2 or 3, it is characterized in that: described rotary teeth be shaped as standard cylindrical, bottom indent is cylindrical, bottom evagination is cylindrical, normal cone shape, bottom indent cone-shaped or bottom evagination cone-shaped; When described rotary teeth be shaped as the cylindrical or bottom indent cone-shaped of bottom indent time, the bottom interior wall of described rotation perforation is provided with corresponding protruding rotating shaft, when described rotary teeth be shaped as the cylindrical or bottom evagination cone-shaped of bottom evagination time, the bottom interior wall of described rotation perforation is provided with corresponding groove.
7. according to the rotary teeth drill bit described in claim 1,2 or 3, it is characterized in that: establish take the described matrix front end end face central point distance as the center of circle, take described rotary teeth central point to the described center of circle as the circle of radius be circle G, axis and the angle of described round G between the outer tangent line of described rotary teeth central point of corresponding described rotary teeth are H, and described H at described round G planar; When the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually near described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at described round G and 5 °≤H≤33 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 1 °, 2 °, 3 ° or 5 °; Or, when the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually near described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at described round G and 12 °≤H≤26 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 0.5 °, 0.75 °, 1 ° or 1.5 °; When the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually away from described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at outside described round G and 5 °≤H≤33 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 1 °, 2 °, 3 ° or 5 °; Or, when the arrangement mode of the corresponding rotation tooth on adjacent described wing is " in the direction of rotation when described drill bit is used gradually away from described matrix front end end face central point ", the cutting end of described rotary teeth is positioned at outside described round G and 12 °≤H≤26 °, and on two adjacent described wings, the H of corresponding rotary teeth differs 0.5 °, 0.75 °, 1 ° or 1.5 °.
8. according to the rotary teeth drill bit described in claim 1,2 or 3, it is characterized in that: described whirligig is ball bearing, roller bearing, needle bearing, sliding bearing or/and bar shaped slip width, and described whirligig is located in described rotation perforation and between described rotary teeth and described rotary teeth hole wall.
9. according to the rotary teeth drill bit described in claim 1,2 or 3, it is characterized in that: described wing is steel body wing or carcass wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724116.0U CN203584310U (en) | 2013-11-15 | 2013-11-15 | Drill bit with rotary teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724116.0U CN203584310U (en) | 2013-11-15 | 2013-11-15 | Drill bit with rotary teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584310U true CN203584310U (en) | 2014-05-07 |
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ID=50582246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724116.0U Expired - Lifetime CN203584310U (en) | 2013-11-15 | 2013-11-15 | Drill bit with rotary teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556952A (en) * | 2013-11-15 | 2014-02-05 | 成都百施特金刚石钻头有限公司 | Rotary-tooth drilling bit |
| CN109898995A (en) * | 2019-02-19 | 2019-06-18 | 西南石油大学 | A kind of combined type single-cone rotary drill bit with rolling ring-gear |
-
2013
- 2013-11-15 CN CN201320724116.0U patent/CN203584310U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556952A (en) * | 2013-11-15 | 2014-02-05 | 成都百施特金刚石钻头有限公司 | Rotary-tooth drilling bit |
| CN103556952B (en) * | 2013-11-15 | 2015-07-15 | 成都百施特金刚石钻头有限公司 | Rotary-tooth drilling bit |
| CN109898995A (en) * | 2019-02-19 | 2019-06-18 | 西南石油大学 | A kind of combined type single-cone rotary drill bit with rolling ring-gear |
| CN109898995B (en) * | 2019-02-19 | 2021-06-08 | 西南石油大学 | Combined single-cone bit with rolling gear ring |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |