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CN216477132U - Self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system - Google Patents

Self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system Download PDF

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Publication number
CN216477132U
CN216477132U CN202123357124.XU CN202123357124U CN216477132U CN 216477132 U CN216477132 U CN 216477132U CN 202123357124 U CN202123357124 U CN 202123357124U CN 216477132 U CN216477132 U CN 216477132U
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China
Prior art keywords
grinding head
reaming
continuous pipe
inverted
pipe fixing
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Withdrawn - After Issue
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CN202123357124.XU
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Chinese (zh)
Inventor
赵研
高科
王龙滨
邱松
金天宇
朴建宇
彭雨征
谢晓波
高磊磊
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Jilin University
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Jilin University
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Priority to CN202123357124.XU priority Critical patent/CN216477132U/en
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Abstract

The self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system comprises a back reaming grinding head, a first continuous pipe fixing piece, a drilling fluid transition channel shaft sealing piece, a grinding head dynamic and static conversion bearing, a back reaming grinding head connecting piece, a back reaming centering bearing shell, a back reaming centering bearing seat, a grinding head torque transmission inner gear, a grinding head torque transmission pinion, a grinding head rotary motor, an outer protective sleeve connecting piece, a back reaming centering bearing group, a second continuous pipe fixing piece, a continuous pipe drilling fluid pipe and a continuous pipe outer pipe; the utility model discloses a bistrique rotating electrical machines gyration drives bistrique biography and turns round the pinion gyration, and bistrique biography is turned round the pinion and is driven bistrique biography and is turned round the internal gear, and the rethread is drawn a hole and is right bearing housing, is drawn a hole and is drawn a hole bistrique connecting piece backward, gives the moment of torsion transmission and has turned round for the grinding head of drawing a hole backward to realize the broken rock piece mesh of gyration, can provide the safety guarantee in the well for whole drilling system.

Description

Self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system
Technical Field
The utility model belongs to the technical field of well drilling and probing, in particular to self-balancing gyration vibration coupling detritus bores and cuts a hole and unfreezes system suitable for technical field such as geological drilling, hydrographic well drilling, oil gas drilling, scientific probing, extraterrestrial star and underground construction rescue drilling.
Background
The applicant has invented a 'downhole torque self-balancing cabled drilling tool system' with patent number 201710082518.8, which fundamentally solves the adverse torque hazard generated by rotary drilling of a drill string, changes the disturbance intensity of unidirectional crushed rock of a drill bit to surrounding rock, simplifies ground drilling equipment and matched tools and process methods, and achieves the purposes of less accidents in a well, low drilling cost, low energy consumption, high drilling efficiency and the like. However, the technology of the method still has some defects, such as the stuck releasing drill bit is easy to be stuck and loses the stuck releasing function, and the reliability and the efficiency of drilling are greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adaptation is in self-balancing gyration vibration coupling detritus drilling back reaming and is stuck off system, solves to solve to block the drilling bit and dies and lose the technological problem of sticking off effect by the card, can provide the safety guarantee in the well for whole drilling system.
The self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system comprises a back reaming grinding head, a first continuous pipe fixing piece, a drilling fluid transition channel shaft sealing piece, a grinding head dynamic and static conversion bearing, a back reaming grinding head connecting piece, a back reaming centering bearing shell, a back reaming centering bearing seat, a grinding head torque transmission inner gear, a grinding head torque transmission pinion, a grinding head rotary motor, an outer protective sleeve connecting piece, a back reaming centering bearing group, a second continuous pipe fixing piece, a continuous pipe drilling fluid pipe and a continuous pipe outer pipe;
a plurality of releasing teeth and back reaming teeth are uniformly distributed on the back reaming grinding head, a drilling fluid circulating groove extending in the circumferential direction is arranged between two adjacent releasing teeth or two adjacent back reaming teeth, and a grinding head joint is further arranged at the lower end of the back reaming grinding head; the back reaming teeth have the function that a drilling system cannot pass through smoothly when a borehole is reduced, and the original diameter of the borehole is achieved through rotating and grinding the borehole wall; the drilling fluid circulation groove ensures that the drilling fluid circulates from the upper part to the lower part of the back reaming grinding head;
the first continuous pipe fixing piece is provided with a continuous pipe fixing threaded hole, a continuous pipe fixing inclined plane, a first sealing ring groove and a continuous pipe fixing piece joint, a sealing ring matched with the first sealing ring groove is arranged in the first sealing ring groove, and the outer wall of the first continuous pipe fixing piece is in sliding sealing fit with the inner wall of the grinding head; the drilling fluid is prevented from entering from the inner wall of the grinding head;
the drilling fluid transition channel shaft sealing element is provided with an upper second sealing ring groove, a first cable channel, a drilling fluid transition channel shaft sealing element joint, a grinding head dynamic and static conversion bearing inner ring limiting step, a thin end outer wall and a lower sealing ring groove, and the second sealing ring groove is in clearance sealing fit with the outer wall of the coiled tubing drilling fluid tube through a sealing ring arranged in the second sealing ring groove; the drilling fluid transition channel shaft sealing element joint is fixedly connected with the continuous pipe fixing element joint; the lower sealing ring groove is in sealing fit with a drilling fluid pipe matched with a drilling system through a sealing ring arranged in the lower sealing ring groove, and a grinding head dynamic-static conversion bearing inner ring limiting step is in interference fit with a grinding head dynamic-static conversion bearing inner ring;
the upper joint of the inverted reaming grinding head connecting piece is fixedly connected with the grinding head joint; the grinding head dynamic and static conversion bearing outer ring limit step is in interference fit with the grinding head dynamic and static conversion bearing outer ring;
the backward reaming and centering bearing shell is provided with a backward reaming and centering bearing shell joint, a backward reaming and centering bearing shell inner wall, a backward reaming and centering bearing group outer ring limiting step, a backward reaming and centering bearing shell sealing ring groove and a grinding head torque transmission inner gear fixing surface, and the backward reaming and centering bearing shell joint is fixedly connected with a lower joint of a backward reaming and grinding head connecting piece; the outer ring limiting step of the reverse reaming centralizing bearing group is in interference fit with the outer ring of the reverse reaming centralizing bearing group;
the reverse reaming and centering bearing seat is provided with a second cable channel, a reverse reaming and centering bearing seat inner wall, a grinding head rotary motor shaft seat, a grinding head torque transmission pinion square hole, a reverse reaming and centering bearing group inner ring limiting step, a reverse reaming and centering bearing seat sealing ring groove, a reverse reaming and centering bearing seat cavity, a reverse reaming and centering bearing seat joint and a reverse reaming and centering bearing seat sealing surface, and the reverse reaming and centering bearing seat inner wall is fixedly connected with the thin end outer wall; the inner ring limit step of the inverted reaming centralizing bearing group is in interference fit with the inner ring of the inverted reaming centralizing bearing group, and the joint of the inverted reaming centralizing bearing seat is fixedly connected with the joint of the outer jacket upper connecting piece; the sealing surface of the bearing seat and the inner wall of the bearing shell are in clearance sealing fit through a sealing ring arranged in a sealing ring groove of the bearing shell; the sealing ring groove of the inverted-reaming centering bearing seat is in clearance sealing fit with the limiting step of the outer ring of the inverted-reaming centering bearing group through a sealing ring arranged in the groove;
the outer jacket connecting piece is provided with an outer jacket connecting piece joint, a third cable channel and a grinding head rotating motor mounting area, a grinding head rotating motor stator is fixedly connected in the grinding head rotating motor mounting area, a grinding head rotating motor rotor extends into a cavity of a back reaming centering bearing seat and is rotatably connected with a grinding head rotating motor shaft seat, a driving grinding head torque transmission pinion is also fixedly connected on the grinding head rotating motor rotor, and the driving grinding head torque transmission pinion is meshed with a grinding head torque transmission inner gear arranged on a grinding head torque transmission inner gear fixing surface; the grinding head rotary motor shaft seat is used for limiting a grinding head rotary motor rotor shaft, and the condition that the rotor shaft is in a suspension wall stress state when the grinding head torque transmission pinion is driven to rotate is ensured; the grinding head torque transmission pinion square hole is used for enabling a grinding head torque transmission pinion placed in the cavity of the back reaming and centering bearing seat to be in meshing fit with a grinding head torque transmission internal gear placed inside and outside the cavity of the back reaming and centering bearing seat; the cavity of the bearing seat is righted by the back reaming hole to provide a placing space for the grinding head rotating motor;
the second continuous pipe fixing piece is provided with a continuous pipe fixing piece fixing hole, a continuous pipe fixing piece inner wall, a continuous pipe fixing piece transition inclined plane and a continuous pipe fixing piece fixing inclined plane, a plurality of continuous pipe fixing piece contraction gaps are longitudinally distributed on the continuous pipe fixing piece fixing inclined plane, the continuous pipe fixing piece fixing hole is in bolt connection with the continuous pipe fixing piece fixing threaded hole through a bolt, the continuous pipe fixing piece fixing inclined plane is abutted against the continuous pipe fixing inclined plane, and the continuous pipe fixing piece inner wall is abutted against the continuous pipe outer wall; so that sufficient friction force is generated between the two;
the first cable channel, the second cable channel and the third cable channel are coaxially communicated and used for passing through electric cables, sensor wires, circulating cooling pipes and the like.
The utility model has the advantages that:
the utility model discloses can provide a system of drawing a hole and unfreezing for no rig self-balancing gyration vibration drilling system, this system of drawing a hole and unfreezing can drive the bistrique through bistrique rotating electrical machines gyration and pass round the pinion gyration, the bistrique passes round the pinion and drives the bistrique and pass round the internal gear, the rethread is drawn a hole and is right bearing housing, the grinding head connecting piece of drawing a hole, give the moment of torsion and has been turned round for the grinding head of drawing a hole, thereby realize the broken rock piece mesh of gyration, can provide the safety guarantee in the well for whole drilling system.
Drawings
Fig. 1 is the assembly schematic diagram of the self-balancing rotation vibration coupling rock crushing drilling back reaming and unfreezing system of the utility model.
Fig. 2 is the utility model discloses there is not self-balancing gyration vibration coupling detritus to bore the back reaming bistrique sketch of drilling and unfreezing system.
Fig. 3 is a schematic view of the first continuous pipe fixing member of the self-balancing rotation vibration coupling rock crushing drilling back reaming and unfreezing system of the present invention.
Figure 4 is the drilling fluid transition passageway shaft seal of the coupled detritus drilling back reaming and unfreezing system of the no self-balancing gyration vibration of the utility model.
Fig. 5 is the utility model discloses there is not self-balancing gyration vibration coupling detritus and bores the back reaming bistrique connecting piece schematic diagram of back reaming and unfreezing system.
Fig. 6 is the utility model discloses there is not self-balancing rotary vibration coupling detritus to bore the back reaming hole rightting bearing shell sketch map of system of sticking together with releasing.
Fig. 7 is the utility model discloses there is not self-balancing gyration vibration coupling detritus to bore the hole of drawing and the rightting bearing frame sketch map of the hole of drawing of falling of unfreezing system.
Fig. 8 is the side view of the reverse reaming centralizing bearing seat of the self-balancing free rotary vibration coupled rock crushing drilling reverse reaming and unfreezing system.
Fig. 9 is a schematic view of the outer sheath connecting member of the self-balance-free rotary vibration coupling rock crushing drilling back reaming and stuck releasing system of the present invention.
Fig. 10 is a schematic view of a second coiled tubing fastener of the self-balancing rotary vibration coupled rock drilling back reaming and unfreezing system of the present invention.
Detailed Description
Referring to fig. 1 to 10, the self-balancing rotary vibration coupling rock crushing drilling back reaming and stuck releasing system comprises a back reaming grinding head 1, a first continuous pipe fixing piece 2, a drilling fluid transition channel shaft sealing piece 3, a grinding head dynamic and static conversion bearing 4, a back reaming grinding head connecting piece 5, a back reaming centering bearing shell 6, a back reaming centering bearing seat 7, a grinding head torque transmission internal gear 8, a grinding head torque transmission pinion 9, a grinding head rotary motor 10, an outer jacket connecting piece 11, a back reaming centering bearing group 12, a second continuous pipe fixing piece 13, a continuous pipe drilling fluid pipe 14 and a continuous pipe outer pipe 15;
a plurality of releasing teeth 101 and back-reaming teeth 102 are uniformly distributed on the back-reaming grinding head 1, a drilling fluid circulating groove 104 extending in the circumferential direction is arranged between two adjacent releasing teeth 101 or two adjacent back-reaming teeth 102, and a grinding head joint 105 is further arranged at the lower end of the back-reaming grinding head 1; the back-reaming teeth 102 have the function that a drilling system cannot pass smoothly when a borehole is reduced, and the original diameter of the borehole is obtained by rotationally coping the borehole wall; the drilling fluid circulation groove 104 ensures that the drilling fluid circulates from the upper part to the lower part of the back reaming grinding head 1;
the first continuous pipe fixing piece 2 is provided with a continuous pipe fixing threaded hole 201, a continuous pipe fixing inclined plane 202, a first sealing ring groove 203 and a continuous pipe fixing piece connector 204, a sealing ring matched with the first sealing ring groove 203 is placed in the first sealing ring groove 203, and the outer wall of the first continuous pipe fixing piece 2 is in sliding sealing fit with the inner wall 103 of the grinding head; the drilling fluid is prevented from entering from the inner wall 103 of the grinding head;
the drilling fluid transition channel shaft sealing element 3 is provided with an upper second sealing ring groove 301, a first cable channel 302, a drilling fluid transition channel shaft sealing element joint 303, a grinding head dynamic and static conversion bearing inner ring limiting step 304, a thin end outer wall 305 and a lower sealing ring groove 306, and the second sealing ring groove 301 is in clearance sealing fit with the outer wall of the coiled tubing drilling fluid pipe 14 through a sealing ring arranged in the second sealing ring groove; the drilling fluid transition passage shaft seal joint 303 is fixedly connected with the coiled tubing fastener joint 204; the lower sealing ring groove 306 is in sealing fit with a drilling fluid pipe matched with a drilling system through a sealing ring arranged in the lower sealing ring groove, and the grinding head dynamic-static conversion bearing inner ring limiting step 304 is in interference fit with the grinding head dynamic-static conversion bearing 4 inner ring;
the inverted reaming grinding head connecting piece 5 is provided with an inverted reaming grinding head connecting piece upper connector 501, a grinding head dynamic and static conversion bearing outer ring limiting step 502 and an inverted reaming grinding head connecting piece lower connector 503, and the inverted reaming grinding head connecting piece upper connector 501 is fixedly connected with the grinding head connector 105; the grinding head dynamic and static conversion bearing outer ring limiting step 502 is in interference fit with the grinding head dynamic and static conversion bearing 4 outer ring;
the reverse reaming and centering bearing shell 6 is provided with a reverse reaming and centering bearing shell joint 601, a reverse reaming and centering bearing shell inner wall 602, a reverse reaming and centering bearing group outer ring limiting step 603, a reverse reaming and centering bearing shell seal ring groove 604 and a grinding head torque transmission inner gear fixing surface 605, and the reverse reaming and centering bearing shell joint 601 is fixedly connected with a reverse reaming and centering grinding head connecting piece lower joint 503; the outer ring limiting step 603 of the reverse reaming centering bearing group is in interference fit with the outer ring of the reverse reaming centering bearing group 12;
the inverted reaming centering bearing seat 7 is provided with a second cable channel 701, an inverted reaming centering bearing seat inner wall 702, a grinding head rotary motor shaft seat 703, a grinding head torque transmission pinion square hole 704, an inverted reaming centering bearing group inner ring limit step 705, an inverted reaming centering bearing seat seal ring groove 706, an inverted reaming centering bearing seat cavity 707, an inverted reaming centering bearing seat joint 708 and an inverted reaming centering bearing seat seal surface 709, and the inverted reaming centering bearing seat inner wall 702 is fixedly connected with a thin end outer wall 305; an inner ring limit step 705 of the inverted reaming centering bearing set is in interference fit with an inner ring of the inverted reaming centering bearing set 12, and a joint 708 of the inverted reaming centering bearing seat is fixedly connected with a joint 1101 of an outer jacket upper connecting piece; the sealing surface 709 of the bearing seat is righted by the inverted reaming and the inner wall 602 of the bearing shell is righted by the inverted reaming and the inner wall of the bearing shell is in clearance sealing fit through a sealing ring arranged in a sealing ring groove 604 of the bearing shell; the sealing ring groove 706 of the inverted reaming centering bearing seat is in clearance sealing fit with the limiting step 603 of the outer ring of the inverted reaming centering bearing group through a sealing ring arranged in the groove;
an outer jacket upper connecting piece connector 1101, a third cable channel 1102 and a grinding head rotary motor mounting area 1103 are arranged on an outer jacket upper connecting piece 11, a grinding head rotary motor 10 stator is fixedly connected in the grinding head rotary motor mounting area 1103, a grinding head rotary motor 10 rotor extends into an inverted reaming centering bearing seat cavity 707 and is rotatably connected with a grinding head rotary motor shaft seat 703, a driving grinding head torque transmission pinion 9 is also fixedly connected on the grinding head rotary motor 10 rotor, and the driving grinding head torque transmission pinion 9 is meshed with a grinding head torque transmission internal gear 8 arranged on a grinding head torque transmission internal gear fixing surface 605; the grinding head rotation motor shaft seat 703 is used for limiting the rotor shaft of the grinding head rotation motor 10, and ensuring that the rotor shaft does not have a suspension wall stress state when driving the grinding head torque transmission pinion 9 to rotate; the grinding head torque transmission pinion square hole 704 is used for enabling a grinding head torque transmission pinion 9 placed in the cavity 707 of the inverted-reaming righting bearing seat to be in meshing fit with a grinding head torque transmission internal gear 8 placed inside and outside the cavity 707 of the inverted-reaming righting bearing seat; the cavity 707 of the bearing seat is righted by the back reaming to provide a placing space for the grinding head rotating motor 10;
the second continuous pipe fixing piece 13 is provided with a continuous pipe fixing piece fixing hole 1301, a continuous pipe fixing piece inner wall 1302, a continuous pipe fixing piece transition inclined surface 1303 and a continuous pipe fixing piece fixing inclined surface 1304, a plurality of continuous pipe fixing piece contraction gaps 1305 are longitudinally distributed on the continuous pipe fixing piece fixing inclined surface 1304, the continuous pipe fixing piece fixing hole 1301 is in bolt connection with the continuous pipe fixing piece fixing threaded hole 201 through bolts, the continuous pipe fixing piece fixing inclined surface 1304 abuts against the continuous pipe fixing inclined surface 202, and the continuous pipe fixing piece inner wall 1302 abuts against the outer wall of the continuous pipe outer pipe 15; so that sufficient friction force is generated between the two;
the first cable passage 302, the second cable passage 701, and the third cable passage 1102 are coaxially communicated for passing an electric cable and a sensor wire, a circulation cooling pipe, and the like.
Furthermore, the inclined plane of the unlocking tooth 101 forms an angle of 15-75 degrees with the axial line, and the function of the unlocking tooth is to break stones and the like falling from the upper hole wall or the well mouth so as to prevent the falling objects from being stuck to the drilling system and being incapable of lifting.
Furthermore, the included angle between the transition inclined surface 1303 of the continuous pipe fixing element and the axis is 15-75 degrees, and the function of the transition inclined surface is to freely slide the stone falling from the upper hole wall or the well mouth to the position of the back reaming grinding head 1.
The utility model discloses a theory of operation and use:
when the drilling machine drills, when a hole is reduced in an upper drill hole, the back reaming and unfreezing system is started, the grinding head rotary motor 10 drives the grinding head torque transmission inner gear 8 to rotate through driving the grinding head torque transmission pinion 9, the grinding head torque transmission inner gear 8 drives the back reaming and centralizing bearing shell 6 to rotate, the back reaming and centralizing bearing shell 6 drives the back reaming grinding head connecting piece 5 to rotate so as to drive the back reaming grinding head 1 to rotate, and the hole is reamed and reamed at the hole reducing position on the upper drill hole through the unfreezing teeth 101 and the back reaming teeth 102, so that the purpose of rotary crushing of rock blocks is achieved, safety guarantee in the well can be provided for the whole drilling liquid inlet system, drilling is carried out in continuous circulation, and generated rock debris is discharged to the ground from a drilling tool by drilling liquid.

Claims (3)

1. Self-balancing rotary vibration coupling detritus is bored reverse reaming and is separated the card system, its characterized in that: the drilling fluid transition type double-shaft drilling machine comprises a reverse reaming grinding head (1), a first continuous pipe fixing piece (2), a drilling fluid transition channel shaft sealing piece (3), a grinding head dynamic and static conversion bearing (4), a reverse reaming grinding head connecting piece (5), a reverse reaming centralizing bearing shell (6), a reverse reaming centralizing bearing seat (7), a grinding head torque transmission internal gear (8), a grinding head torque transmission pinion (9), a grinding head rotary motor (10), an outer jacket connecting piece (11), a reverse reaming centralizing bearing group (12), a second continuous pipe fixing piece (13), a continuous pipe drilling fluid pipe (14) and a continuous pipe outer pipe (15);
a plurality of releasing teeth (101) and back-reaming teeth (102) are uniformly distributed on the back-reaming grinding head (1), a drilling fluid circulating groove (104) extending axially is arranged between two adjacent releasing teeth (101) or two adjacent back-reaming teeth (102), and a grinding head joint (105) is further arranged at the lower end of the back-reaming grinding head (1);
a continuous pipe fixing threaded hole (201), a continuous pipe fixing inclined plane (202), a first sealing ring groove (203) and a continuous pipe fixing connector (204) are formed in the first continuous pipe fixing piece (2), a sealing ring matched with the first sealing ring groove (203) is arranged in the first sealing ring groove (203), and the outer wall of the first continuous pipe fixing piece (2) is in sliding sealing fit with the inner wall (103) of the grinding head; the drilling fluid is prevented from entering from the inner wall (103) of the grinding head;
the drilling fluid transition channel shaft sealing element (3) is provided with an upper second sealing ring groove (301), a first cable channel (302), a drilling fluid transition channel shaft sealing element joint (303), a grinding head dynamic and static conversion bearing inner ring limiting step (304), a thin end outer wall (305) and a lower sealing ring groove (306), and the second sealing ring groove (301) is in clearance sealing fit with the outer wall of the continuous pipe drilling fluid pipe (14) through a sealing ring arranged in the second sealing ring groove; the drilling fluid transition channel shaft sealing element joint (303) is fixedly connected with the continuous pipe fixing element joint (204); the lower sealing ring groove (306) is in sealing fit with a drilling fluid pipe matched with a drilling system through a sealing ring arranged in the lower sealing ring groove, and a grinding head dynamic-static conversion bearing inner ring limiting step (304) is in interference fit with a grinding head dynamic-static conversion bearing (4) inner ring;
the inverted reaming grinding head connecting piece (5) is provided with an upper inverted reaming grinding head connecting piece connector (501), a grinding head dynamic and static conversion bearing outer ring limiting step (502) and an inverted reaming grinding head connecting piece lower connector (503), and the upper inverted reaming grinding head connecting piece connector (501) is fixedly connected with the grinding head connector (105); the grinding head dynamic and static conversion bearing outer ring limiting step (502) is in interference fit with the grinding head dynamic and static conversion bearing (4) outer ring;
the inverted reaming centering bearing shell (6) is provided with an inverted reaming centering bearing shell joint (601), an inverted reaming centering bearing shell inner wall (602), an inverted reaming centering bearing group outer ring limiting step (603), an inverted reaming centering bearing shell seal ring groove (604) and a grinding head torque transmission inner gear fixing surface (605), and the inverted reaming centering bearing shell joint (601) is fixedly connected with a lower joint (503) of an inverted reaming grinding head connecting piece; the outer ring limiting step (603) of the reverse reaming centralizing bearing group is in interference fit with the outer ring of the reverse reaming centralizing bearing group (12);
the inverted reaming centering bearing seat (7) is provided with a second cable channel (701), an inverted reaming centering bearing seat inner wall (702), a grinding head rotary motor shaft seat (703), an inverted reaming centering bearing group inner ring limiting step (705), an inverted reaming centering bearing seat sealing ring groove (706), an inverted reaming centering bearing seat cavity (707), an inverted reaming centering bearing seat joint (708) and an inverted reaming centering bearing seat sealing surface (709), and the inverted reaming centering bearing seat inner wall (702) is fixedly connected with the thin end outer wall (305); an inner ring limit step (705) of the reverse reaming centering bearing set is in interference fit with an inner ring of the reverse reaming centering bearing set (12), and a joint (708) of a reverse reaming centering bearing seat is fixedly connected with a joint (1101) of an outer jacket upper connecting piece; the sealing surface (709) of the bearing seat is righted by the inverted reaming and the inner wall (602) of the bearing shell is righted by the inverted reaming and the inner wall of the bearing shell is in clearance sealing fit through a sealing ring arranged in a sealing ring groove (604) of the bearing shell; a sealing ring groove (706) of the inverted-reaming centering bearing seat is in clearance sealing fit with a limiting step (603) of the outer ring of the inverted-reaming centering bearing group through a sealing ring arranged in the groove;
an outer sheath upper connecting piece connector (1101), a third cable channel (1102) and a grinding head rotary motor mounting area (1103) are arranged on an outer sheath upper connecting piece (11), a stator of a grinding head rotary motor (10) is fixedly connected in the grinding head rotary motor mounting area (1103), a rotor of the grinding head rotary motor (10) extends into a cavity (707) of a back reaming centralizing bearing seat and is rotatably connected with a shaft seat (703) of the grinding head rotary motor, a driving grinding head torque transmission pinion (9) is fixedly connected on the rotor of the grinding head rotary motor (10), and the driving grinding head torque transmission pinion (9) is meshed with a grinding head torque transmission internal gear (8) arranged on a grinding head torque transmission internal gear fixing surface (605);
the second continuous pipe fixing piece (13) is provided with a continuous pipe fixing piece fixing hole (1301), a continuous pipe fixing piece inner wall (1302), a continuous pipe fixing piece transition inclined surface (1303) and a continuous pipe fixing piece fixing inclined surface (1304), a plurality of continuous pipe fixing piece contraction gaps (1305) are longitudinally distributed on the continuous pipe fixing piece fixing inclined surface (1304), the continuous pipe fixing piece fixing hole (1301) is in bolt connection with the continuous pipe fixing piece fixing threaded hole (201) through a bolt, the continuous pipe fixing piece fixing inclined surface (1304) is abutted against the continuous pipe fixing inclined surface (202), and the continuous pipe fixing piece inner wall (1302) is abutted against the outer wall of the continuous pipe outer pipe (15);
the first cable passage (302), the second cable passage (701) and the third cable passage (1102) are in coaxial communication.
2. The self-balancing rotary vibration coupled rock crushing drilling back reaming and stuck freeing system of claim 1, wherein: the included angle between the inclined plane of the unlocking tooth (101) and the axial line is 15-75 degrees.
3. The self-balancing rotary vibration coupled rock crushing drilling back reaming and stuck freeing system of claim 1, wherein: the included angle between the transition inclined surface (1303) of the continuous pipe fixing piece and the axial line is 15-75 degrees.
CN202123357124.XU 2021-12-29 2021-12-29 Self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system Withdrawn - After Issue CN216477132U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123357124.XU CN216477132U (en) 2021-12-29 2021-12-29 Self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123357124.XU CN216477132U (en) 2021-12-29 2021-12-29 Self-balancing rotary vibration coupling rock crushing drilling back reaming and unfreezing system

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Publication Number Publication Date
CN216477132U true CN216477132U (en) 2022-05-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114135221A (en) * 2021-12-29 2022-03-04 吉林大学 Drilling machine-free self-balancing rotary vibration coupling rock crushing drilling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114135221A (en) * 2021-12-29 2022-03-04 吉林大学 Drilling machine-free self-balancing rotary vibration coupling rock crushing drilling system
CN114135221B (en) * 2021-12-29 2024-09-13 吉林大学 Self-balancing rotary vibration coupling rock crushing drilling back reaming and unclamping system

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