CN112523680B - Motor rotor axial vibration compensation mechanism and central wire passing method - Google Patents
Motor rotor axial vibration compensation mechanism and central wire passing method Download PDFInfo
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- CN112523680B CN112523680B CN202011370890.7A CN202011370890A CN112523680B CN 112523680 B CN112523680 B CN 112523680B CN 202011370890 A CN202011370890 A CN 202011370890A CN 112523680 B CN112523680 B CN 112523680B
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- floating shaft
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- drop
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Abstract
The invention relates to a vibration compensation mechanism and a wire passing method, belongs to the technical field of drilling, and particularly relates to an axial vibration compensation mechanism of a motor rotor and a central wire passing method. The method comprises the following steps: the anti-drop tensile joint; an axial floating shaft disposed within the drop-resistant tensile joint and movable in an axial direction of the drop-resistant tensile joint; the upper end and the lower end of the axial floating shaft are respectively and electrically connected with a transmission medium in the flexible shaft and a conductive connecting device on the rotor. The vibration compensation mechanism and the wire passing method solve the problem that a power supply and a signal pass through the screw motor in a wired mode through the center wire passing mode, achieve simultaneous transmission of the power supply and the signal, are suitable for rotary guide systems and other underground control detection systems, and can achieve communication and power transmission of a circuit through the screw motor.
Description
Technical Field
The invention relates to a vibration compensation mechanism and a wire passing method, belongs to the technical field of drilling, and particularly relates to an axial vibration compensation mechanism of a motor rotor and a central wire passing method.
Background
The central line-passing synergistic screw motor has the function of simultaneously transmitting signals and power, can increase the power and the rotating speed of a rotary steering system, and improves the drilling speed of drilling machinery. Signals at the bottom of the well and the ground can be transmitted through the central wire passing synergistic screw motor, and meanwhile, electric power generated by a generator connected to the upper end of the central wire passing synergistic screw motor can be transmitted to a rotary guide system connected to the lower end of the synergistic screw motor through the central wire passing synergistic motor. Geometric parameters and geological parameters collected by a sensor of the rotary steering system are transmitted to the MWD through the central through-line synergistic screw motor until signals are uploaded to a ground system, so that a decision maker and an operator can know the well bottom condition.
In the existing various synergistic motor technologies, the method and the device for the screw through-line connection communication adopt a slip ring structure or wireless coupling communication. The slip ring structure has the problems that sealing is difficult to guarantee and contact quality is poor due to the influence of vibration and axial displacement change of the underground screw during working, and a wireless coupling mode has the problems of poor reliability and low transmission efficiency.
Therefore, the improvement of the wire-passing screw drill in the prior art to improve the transmission efficiency and reliability is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The invention mainly aims to solve the technical problems of poor reliability, poor contact quality, low transmission efficiency and the like in the prior art, and provides a motor rotor axial vibration compensation mechanism and a central wire passing method. The vibration compensation mechanism and the wire passing method solve the problem that a power supply and a signal pass through the screw motor in a wired mode through a center wire passing mode, achieve simultaneous transmission of the power supply and the signal, are suitable for rotary guide systems and other underground control detection systems, and can achieve communication and power transmission of a circuit through the screw motor.
In order to solve the problems, the scheme of the invention is as follows:
a motor rotor axial rattle compensation mechanism comprising:
the anti-drop tensile joint;
an axial floating shaft disposed within the drop-resistant tensile joint and movable in an axial direction of the drop-resistant tensile joint;
the upper end and the lower end of the axial floating shaft are respectively and electrically connected with a transmission medium in the flexible shaft and a conductive connecting device on the rotor.
Preferably, in the above axial vibration compensation mechanism for a motor rotor, the lower end of the axially floating shaft is provided with a floating shaft lower conductive pin to be electrically connected with an upper conductive socket arranged on the rotor.
Preferably, in the above motor rotor axial vibration compensation mechanism, the upper end of the axial floating shaft is provided with a conductive pin on the floating shaft to electrically connect with a transmission medium in the flexible shaft.
Preferably, in the above axial vibration compensation mechanism for a motor rotor, a hard alloy sleeve is arranged at the top of the drop-proof tensile joint, and the upper end of the axial floating shaft is connected with the flexible shaft through the hard alloy sleeve.
Preferably, in the above motor rotor axial vibration compensation mechanism, a cut surface is provided on a side wall of one end of the axial floating shaft, and the cut surface and an inner wall of the anti-drop tensile joint form a cavity capable of accommodating the axial floating shaft spring.
Preferably, in the motor rotor axial vibration compensation mechanism, an axial floating shaft limit pin is arranged in the anti-drop tensile joint, a groove is arranged on a side wall of the axial floating shaft, and one end of the axial floating shaft limit pin is inserted into the groove to limit axial movement of the axial floating shaft.
Preferably, in the motor rotor axial vibration compensation mechanism, a rotor center winding seat is arranged in the drop-proof tensile joint, and the transmission line passes through the line passing hole in the axial floating shaft, then is wound by the rotor center winding seat and then is connected with the lower conductive contact pin of the rotor.
A motor rotor center wire passing method comprising:
an axial floating shaft capable of moving along the axial direction is arranged in the anti-drop tensile joint, and the upper end and the lower end of the axial floating shaft are respectively and electrically connected with a transmission medium in the flexible shaft and a conductive connecting device on the rotor.
Preferably, the above-mentioned motor rotor center line passing method includes: a tangent plane is arranged on the side wall of one end of the axial floating shaft, and an axial floating shaft spring is arranged in a cavity formed by the tangent plane and the inner wall of the anti-drop tensile joint.
A wire-passing screw drill comprises the motor rotor axial vibration compensation mechanism.
Therefore, as can be seen from the above description, the present invention solves the problem of the power supply and the signal passing through the screw motor in a wired manner through the center line, and realizes the simultaneous transmission of the power supply and the signal. The underground control system is suitable for a rotary steering system and other underground control detection systems, can realize that a circuit passes through the screw motor to realize simultaneous signal and power transmission, provides a function of passing through the screw motor by a wire for power and signal transmission of the underground control system, and simultaneously improves the rotary torque of the underground control system and the drilling speed of a drilling machine.
Drawings
The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the disclosure.
FIG. 1 slip ring assembly and center wire-passing approach;
FIG. 2 shows a motor rotor axial vibration compensation mechanism and a center wire-passing manner;
FIG. 3 illustrates a motor rotor and flex shaft center line-passing pattern;
FIG. 4 shows a central line passing mode of a flexible shaft and a transition joint line passing mode of a transmission shaft;
FIG. 5A transmission shaft transition joint and transmission shaft assembly line-passing manner.
Embodiments of the present invention will be described with reference to the accompanying drawings.
Detailed Description
Examples
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 5, the wire-passing screw drill and the wire-passing method provided by the embodiment of the invention include a slip ring assembly, a wire-passing motor assembly, a wire-passing cardan shaft assembly, and a wire-passing transmission shaft assembly. In specific implementation, the wire-passing screw drill can also be implemented by adopting one or more structures of the slip ring connection assembly, the wire-passing motor assembly, the wire-passing cardan shaft assembly and the wire-passing transmission shaft assembly in the embodiments 1 to 4.
The following describes the structure of each assembly separately with reference to the drawings.
Example 1
The embodiment provides a slip ring connection assembly, which is structurally shown in fig. 1.
The slip ring connection assembly comprises a slip ring assembly outer shell 1, a socket connector 2, a transition positioning connector 3, a slip ring assembly positioning centralizer 4, a positioning pin 5, a slip ring assembly 6, a slip ring centralizer 7, a flexible shaft 8 and a conducting rod 9, and a slip ring assembly line passing mode formed in the figure 1 can convert conducting wires which rotate in a rotor 21 and the flexible shaft 8 into fixed conducting wires for connection.
The slip ring connecting assembly comprises a slip ring assembly outer shell 1, a transition positioning joint 3 and a slip ring assembly 7 which are fixed through a slip ring assembly positioning centralizer 4 and a slip ring centralizer 7 respectively are arranged in the slip ring connecting assembly, a flexible shaft 8 is arranged at the lower end of the slip ring assembly 7, and a flexible shaft conducting rod 9 is arranged in the flexible shaft 8.
Example 2
In the existing various wire passing motor technologies, methods and devices for wire passing connection communication of a screw rod adopt a slip ring connection structure, and adopt wireless coupling communication. The slip ring structure has the problems that sealing is difficult to guarantee and contact quality is poor due to the influence of tool vibration and rotor axial position change during the working of an underground screw rod, and a wireless coupling transmission mode has the problems of poor reliability and low transmission efficiency. In view of these problems, the present embodiment provides a wire passing motor assembly, which has a structure as shown in fig. 2.
The wire passing motor assembly has the function of eliminating axial vibration or floating generated by the motor rotor 21, ensuring the communication of a central wire passing through the wire passing motor assembly and preventing the wire from being pulled apart.
The wire passing motor assembly comprises a flexible shaft seal 10, a hard alloy sleeve 11, an axial dynamic seal 12, an axial floating shaft centering sleeve 13, an axial floating shaft limiting pin 14, an axial floating shaft 15, an anti-drop pull-bearing joint 16, an axial floating shaft lower conductive contact pin 17, a rotor upper conductive socket 18, an anti-drop transition joint 19, a stator 20, a rotor 21, a rotor central lead 22, a rotor central winding seat 23-1, a socket connecting wire 24, a rotor sealing ring 25, an anti-drop pull-bearing joint seal 26, an axial floating shaft spring 27, a contact pin insulating gasket 28, a conductive rod insulating centering sleeve 29 and a floating shaft conductive contact pin 30.
Specifically, the wire passing motor assembly comprises:
the anti-drop bearing and pulling joint 16 is characterized in that an axial floating shaft lower conductive contact pin 17 is arranged at the lower end of the anti-drop bearing and pulling joint 16, and the axial floating shaft lower conductive contact pin 17 is used for being electrically connected with a rotor upper conductive socket 18 arranged on a rotor 21;
an axially floating shaft 15, said axially floating shaft 15 being disposed within said drop-resistant tensile joint 16 and being axially movable along said drop-resistant tensile joint 16; the axial floating shaft 15 is of a hollow structure, and a transmission medium can pass through the threading hole to be connected with the lower conductive contact pin 17 of the axial floating shaft; the upper end of the axial floating shaft 15 is sleeved with the flexible shaft 8 and is electrically connected with a transmission medium in the flexible shaft 8 through a conductive contact pin 30 on the floating shaft; the axially floating shaft lower conductive pin 17 is electrically connected with the rotor upper conductive socket 18.
As a preferred embodiment, the transmission medium in the flexible shaft 8 may be a conductive rod 9.
A cut-out may be provided in the side wall at one end of the axially floating shaft 15, which cut-out, together with the inner wall of the drop-resistant tensile joint 16, forms a chamber for receiving an axially floating shaft spring 27.
An axial floating shaft limiting pin 14 is arranged in the anti-drop tensile joint 16, a groove is arranged on the side wall of the axial floating shaft 15, and one end of the axial floating shaft limiting pin 14 is inserted into the groove to limit the axial movement of the axial floating shaft 15.
A cemented carbide sleeve 11 is provided on top of the drop resistant tensile joint 16, the cemented carbide sleeve 11 being used to prevent and reduce wear between the floating shaft 15 and the drop resistant tensile joint 16 due to interaction and relative movement.
And a plurality of axial dynamic seals 12 and axial floating shaft centralizing sleeves 13 are arranged between the axial floating shaft 15 and the drop-resistant tensile joints 16. The axial floating shaft centering sleeve 13 is an annular part and is mainly used for supporting the axial floating shaft 15 to be positioned in the center of an inner hole of the drop-resistant tensile joint 16, so that the functions of centering the position and enhancing the sealing effect are achieved.
A rotor center winding seat 23-1 is arranged in the anti-drop tensile connector 16, and a transmission line penetrates through a line passing hole in the axial floating shaft 15, then is wound by the rotor center winding seat 23-1 and then is connected with a lower rotor conductive contact pin 31.
After the structure is adopted, the rotor 21 is connected with the slip ring assembly 6 into a whole through the anti-drop tensile joint 16 and the flexible shaft 8. A conductive rod 9 is fixed in a central hole of the flexible shaft 8, and the conductive rod 9 is connected with a conductive contact pin 30 on the floating shaft to form a conducting circuit. The flexible shaft 8 and the axial floating shaft 15 are connected together to form axial floating. The rotor 21 can generate axial vibration in the rotation process, and the elimination of the axial vibration mainly depends on the relative motion of the axial floating shaft 15 and the axial floating shaft spring 27 in the drop-resistant tensile joint 16, so that the connection lead does not generate the pulling phenomenon when passing through the central hole of the floating shaft 15.
Example 3
The line-passing cardan shaft bus line in the prior art is unstable in fixation, poor in vibration resistance of the line and poor in contact of a conductive plug and a conductive socket, so that the problems of large transmission resistance of the line, heating of the line, unstable connection and the like are caused.
In response to these problems, the present embodiment provides a universal joint assembly, which is structurally shown in fig. 3-4. The cross-wire cardan shaft assembly comprises: the rotor lower conductive pin 31, the flexible shaft upper conductive socket 32, the power flexible shaft 33, the power flexible shaft central lead 34, the flexible shaft winding seat 23-2, the power flexible shaft lead 35, the flexible shaft outer shell 36 and the flexible shaft sealing ring 37 are connected with the lead 44 through the rotor lower conductive pin 31, the flexible shaft lower sealing ring 38, the flexible shaft lower conductive pin 39, the rotating shaft transition socket 40, the transmission shaft transition joint 41, the transmission shaft transition joint lead 42, the lead sheath 43 and the flexible shaft lower conductive pin. The universal shaft assembly is connected with the rotor central lead wire 22 and the power flexible shaft central lead wire 34 through the flexible shaft upper conductive socket 32, and the central lead wire is connected with the flexible shaft lower conductive contact pin 39 through the transmission shaft transition joint 41, the rotating shaft transition socket 40 in the power flexible shaft 33.
Specifically, cross the line cardan shaft assembly and include: the upper end of the power flexible shaft 33 is provided with a flexible shaft upper conductive socket 32 which is electrically connected with the rotor lower conductive contact pin 31; the lower end of the flexible shaft is provided with a flexible shaft lower conductive contact pin 39; a wire passing hole for transmission media to pass through is arranged in the flexible shaft, and the flexible shaft upper conductive socket 32 is electrically connected with the flexible shaft lower conductive contact pin 39 through the transmission media;
and a flexible shaft sealing ring 37 is arranged on the surface of the rotor lower conductive contact pin 31 connected with the power flexible shaft 33.
As an implementation mode, a flexible shaft winding seat 23-2 is arranged in the wire passing hole of the power flexible shaft 33, and the transmission medium passing through the power flexible shaft 33 is electrically connected with the flexible shaft lower conductive contact pin 39 after being wound on the flexible shaft winding seat 23-2.
In one embodiment, the transmission medium passing through the flexible shaft 33 includes at least a flexible shaft center conductor 34 and a flexible shaft conductor 35. In order to prevent the line from being too long and the self weight of the line from generating adverse effects on the connection point, the line is divided into three sections, namely a power flexible shaft central lead 34, a power flexible shaft lead 35 and a flexible shaft lower conductive contact pin connection lead 44. The power flexible shaft central lead 34 and the power flexible shaft lead 35 are separated by a flexible shaft winding seat 23-2, and a circuit with a certain allowance can be stored in a channel space at the upper end of the flexible shaft winding seat 23-2, so that the flexible shaft conductive socket 32 can be conveniently overhauled.
The flexible shaft winding seat 23-2 is arranged in a wire passing hole of the power flexible shaft 33; one end of the power flexible shaft central lead 34 is electrically connected with the flexible shaft upper conductive socket 32, and the other end is wound on the flexible shaft winding seat 23-2 and then is electrically connected with the flexible shaft lower conductive contact pin 39 through the power flexible shaft lead 35.
After the structure is adopted, as shown in fig. 3, the lower end of the rotor 21 is provided with a lower rotor conductive pin 31, the upper end of the power flexible shaft 33 is provided with an upper flexible shaft conductive socket 32, and the lower conductive pin and the upper flexible shaft conductive socket are connected with the following wires: a rotor center lead 22, a power flexible shaft center lead 34,Flexible axis winding seat 23-2A power flexible shaft lead 35, and then the rotor 21 and the power flexible shaft 33 are connected into a whole through screw threads. Such that the rotor 21 and the dynamic flexshaft 33 form a central through-line.
After the structure is adopted, as shown in fig. 4, the lower end of the power flexible shaft 33 is provided with the upper flexible shaft lower conductive contact pin 39 which is connected with the flexible shaft lower conductive contact pin connecting lead 44, the transmission shaft transition joint 41 is provided with the rotating shaft transition socket 40 which is connected with the transmission shaft transition joint lead 42, the upper flexible shaft lower sealing ring 38 is arranged, and the power flexible shaft 33 and the transmission shaft transition joint 41 are connected together through screw threads. Thus passing through the center of the power flex shaft 33.
Example 4
The line transmission shaft assembly among the prior art is because transmission shaft 45 is in high-speed rotatory, and the working process is accompanied with vibration and impact, and the fixed difficulty of circuit in transmission shaft 45, circuit disconnection easily under the rotatory vibration state, vibration conductive plug socket contact failure to lead to whole circuit transmission resistance big, the circuit generates heat and produces high temperature, the unstable scheduling problem of conductivity.
To solve these problems, the present embodiment provides a wire-passing transmission shaft assembly, as shown in fig. 5, including a transmission shaft 45, a transmission bearing assembly 46, a centralizer sealing ring 47, a replaceable centralizer 48, a piston upper seal 49, a piston positioning pin 50, a piston lower seal 51, a piston transition joint 52, a piston transition joint pin 53, a piston transition joint conducting rod 54, a piston transition joint sealing ring 55, a piston 56, a plug 57, an over-piston connecting wire 58, a transmission shaft connecting wire 59, a transmission shaft transition joint sealing ring 60, a pin conducting ring 61, a socket conducting ring 62, a transmission shaft sealing ring 63, and an anti-erosion ring 64, and fig. 5 shows that the transmission shaft transition joint conducting wire 42 and the over-transmission shaft connecting wire 59 are connected together through the pin conducting ring 61 and the socket conducting ring 62, so as to conduct the conducting wires.
Specifically, the wire transmission shaft assembly includes:
the upper end of the transmission shaft transition joint 41 is sleeved with the power flexible shaft 33 and is electrically connected with a flexible shaft lower conductive contact pin 39 arranged on the power flexible shaft 33 through a rotating shaft transition socket 40; the lower end of the transmission shaft is provided with a socket conducting ring 62 and a pin conducting ring 61, and the socket conducting ring 62 and the pin conducting ring 61 are used for realizing connection and conduction of internal wires of the transmission shaft transition joint 41 and the transmission shaft 45 when the transmission shaft transition joint and the transmission shaft are mechanically connected through threads.
The socket conducting ring 62 is electrically connected through a transmission medium in a wire through hole in the transmission shaft transition joint 4;
a transmission shaft 45, on which a pin conductive ring 61 or a socket conductive ring 62 electrically connected to the socket conductive ring 62 or the pin conductive ring 61 is disposed, in which a transmission shaft wire passing hole is disposed, and a piston port is disposed at a lower end thereof;
a piston 56 inserted into a piston port provided at the lower end of the transmission shaft 45; a lead hole and a piston transition joint conductive rod 54 are arranged on the pin, and a transmission medium is electrically connected with the piston transition joint conductive rod 54 and then is electrically connected with the pin conductive ring 61 through the lead hole and the wire passing hole of the transmission shaft 45.
Wherein, a transmission shaft assembly 46 is sleeved outside the transmission shaft 45.
Wherein a replaceable centralizer 48 is provided on the exterior wire passing drive shaft assembly housing of the drive shaft assembly 46.
The transmission shaft 45 is provided with a piston positioning pin 50, and the piston transition joint 52 is provided with a positioning hole matched with the piston positioning pin 50;
as a preferred embodiment, the wire through hole in the propeller shaft transition joint 4 is arranged offset from the axis of the propeller shaft transition joint 4; because the centers of the transition joint 41 and the drive shaft 45 are the drilling fluid flow path, the feed-through hole is provided in the sidewall in an eccentric position.
The center of the socket conducting ring 62 is coaxial with the axis of the transmission shaft transition joint 4.
In a preferred embodiment, the transmission shaft threading hole is disposed offset from the axis of the transmission shaft 45.
In a preferred embodiment, the lead hole of the piston 56 includes an axial lead hole arranged in a direction parallel to or coincident with the axis of the piston 56, and a lateral lead hole perpendicular to the axial lead hole; the piston transition joint conducting rod 54 is connected with one end of a piston connecting conducting wire 58, and the other end of the piston connecting conducting wire 58 penetrates through the axial lead hole, the lateral lead hole and the transmission shaft wire through hole in sequence and is electrically connected with the contact pin conducting ring 61.
Socket conducting rings 62 are installed in the inner holes of the transmission shaft transition joint 41, pin conducting rings 61 are installed in the inner holes of the transmission shaft 45 and connected with the transmission shaft connecting conducting wires 59 and the transmission shaft transition joint conducting wires 42, then the transmission bearing assembly 46 is installed on the transmission shaft 45, then the replaceable centralizer 48 is installed, and then the transmission shaft transition joint 41 is connected in a threaded mode to form a transmission shaft assembly through line.
The piston upper seal 49 and the piston lower seal 51 are arranged on the piston 56, the piston 56 is inserted into the transmission shaft 45, the piston positioning pin 50 clamps the piston 56 and screws on the plug 57, the piston transition joint 52 is provided with a piston transition joint pin 53 and a piston transition joint conducting rod 54, and the piston transition joint sealing ring 55 is arranged on the piston transition joint 52, is connected to the piston 56 and is connected with a piston connecting lead 58. Therefore, the leads are connected into a whole to form a central wire passing form.
Example 5
Based on the content of the foregoing embodiments, the present embodiment provides a thread-passing screw drill and a thread-passing method.
The wire-passing screw drill provided by the embodiment comprises: the wire passing motor assembly, the wire passing cardan shaft assembly and the wire passing transmission shaft assembly are sequentially connected;
the wire passing motor assembly is internally provided with an anti-drop bearing and pulling joint 16 connected with a rotor 21, the anti-drop bearing and pulling joint 16 is internally provided with an axial floating shaft 15 capable of moving axially, the upper end of the axial floating shaft 15 is connected with a flexible shaft 8 through a conductive contact pin 30 on the floating shaft, and a transmission lead is electrically connected with the conductive contact pin 30 on the floating shaft, penetrates through the axial floating shaft 15 after being electrically connected with a wire passing hole arranged in the rotor, and is electrically connected with the wire passing universal shaft assembly;
a universal shaft threading hole is formed in the threading universal shaft assembly; a lead is electrically connected with the wire passing motor assembly and then passes through the universal shaft through hole to be electrically connected with the wire passing transmission shaft assembly;
the wire-passing transmission shaft assembly is internally provided with a transmission shaft wire-passing hole, the bottom of the wire-passing transmission shaft assembly is provided with a piston 56, the piston 56 is provided with a conductive rod 54, and a lead is electrically connected with the wire-passing transmission shaft assembly and then passes through the transmission shaft wire-passing hole to be electrically connected with the conductive rod 54.
The wire passing motor assembly provided by the embodiment can further comprise a slip ring assembly. The slip ring connection assembly includes: the slip ring assembly comprises a slip ring assembly outer shell 1, wherein a transition positioning joint 3 and a slip ring assembly 7 which are fixed through a slip ring assembly positioning centralizer 4 and a slip ring centralizer 7 are arranged in the slip ring assembly outer shell 1, a flexible shaft 8 is arranged at the lower end of the slip ring assembly 7, and a conductive rod 9 is arranged in the flexible shaft 8.
The embodiment also provides a thread passing method of the screw drill, which comprises the following steps:
the wire passing motor assembly, the wire passing cardan shaft assembly and the wire passing transmission shaft assembly are sequentially connected;
arranging an anti-drop bearing-pull joint 16 connected with a rotor 21 in a wire passing motor assembly, arranging an axial floating shaft 15 capable of moving axially in the anti-drop bearing-pull joint 16, connecting the upper end of the axial floating shaft 15 with a flexible shaft 8 through a conductive contact pin 30 on the floating shaft, electrically connecting a transmission lead with the conductive contact pin 30 on the floating shaft, then penetrating the axial floating shaft 15 and a wire passing hole arranged in the rotor, and then electrically connecting the wire passing cardan shaft assembly;
a universal shaft through hole is formed in the wire passing universal shaft assembly; a lead is electrically connected with the wire passing motor assembly and then passes through the universal shaft through hole to be electrically connected with the wire passing transmission shaft assembly;
the transmission shaft assembly is internally provided with a transmission shaft wire passing hole, the bottom of the transmission shaft assembly is provided with a piston 56, the piston 56 is provided with a conductive rod 54, and a lead is electrically connected with the transmission shaft assembly and then passes through the transmission shaft wire passing hole to be electrically connected with the conductive rod 54.
Specifically, the thread passing method of the screw drill in the embodiment may include the following steps:
the first step is as follows: the rotor 21 is provided with the conductive socket 18, the rotor center lead 22, the rotor center winding seat 23-1 and the socket connecting wire 24 are connected, the lower end of the rotor 21 is provided with the rotor lower conductive pin 31, the rotor center lead 22 is welded on the rotor lower conductive pin 31, and after the rotor 21 is arranged, the stator 20 is arranged to assemble the efficiency-increasing motor assembly.
The second step is that: the upper end of the power flexible shaft 33 is provided with the flexible shaft upper conductive socket 32, the lower end of the power flexible shaft 33 is provided with the flexible shaft lower conductive pin 39, and the connecting lead 44 is welded on the flexible shaft upper conductive socket 32 and the flexible shaft lower conductive pin 39. After assembly, the power shaft 33 is connected to the efficiency motor rotor 21.
The third step: the inner holes at the upper and lower ends of the transmission shaft transition joint 41 are provided with a transmission shaft transition socket 40 and a socket conducting ring 62, and a transmission shaft transition joint conducting wire 42 is welded. The propeller shaft transition joint 41 is thus assembled.
The fourth step: the transmission shaft assembly is assembled by a transmission shaft 45, a transmission bearing assembly 46, a centralizer sealing ring 47 and a replaceable centralizer 48. Then, a pin conductive ring 61 is arranged at the upper end of the transmission shaft 45 and welded through a transmission shaft connecting lead 59, a piston upper seal 49 is arranged on the piston 56 and inserted into a lower end hole of the transmission shaft 45, the piston 56 is fixed by a piston positioning pin 50 and a plug 57, meanwhile, a piston transition joint pin 53 and a piston transition joint conductive rod 54 are inserted into the piston transition joint 52 and welded through a piston connecting lead 58, and the piston transition joint 52 is screwed on the piston 56, so that the wire-passing transmission shaft assembly is assembled.
The fifth step: and mounting a transmission shaft sealing ring 63 on the assembled transmission shaft transition joint 41, and screwing the assembled transmission shaft transition joint onto the assembled wire-passing transmission shaft assembly.
And a sixth step: the power flexible shaft 33 and the synergistic motor rotor 21 assembled in the second step are screwed on the stator 20 through the upper end threads of the universal shaft shell 36, and the power flexible shaft 33 is screwed on the transmission shaft transition joint 41 assembled in the third step and the fourth step.
The seventh step: and screwing the transmission shaft assembly assembled in the fourth step onto the lower end threads of the universal shaft shell 36.
The eighth step: the slip ring assembly 6 is connected with a flexible shaft 8, an upper slip ring assembly positioning centralizer 4 and a slip ring centralizer 7 are installed, the flexible shaft 8 is further connected with an axial floating shaft 15, a flexible shaft seal 10, a hard alloy sleeve 11, an axial dynamic seal 12, an axial floating shaft centralizing sleeve 13, an axial floating shaft limiting pin 14, an anti-drop tensile connector 16, a conductive pin 17, a conductive socket 18, an anti-drop transition connector 19, a stator 20, a rotor 21, a rotor central lead 22, a rotor central winding seat 23-1, a socket connecting wire 24, a rotor sealing ring 25, an anti-drop tensile connector seal 26, an axial floating shaft spring 27, a pin insulating gasket 28, a conductive rod insulating centralizing sleeve 29, a pin 30 and the like. And assembling the slip ring flexible shaft assembly.
The ninth step: and screwing the anti-falling transition joint 19 and the upper end threads of the stator 20 in the slip ring flexible shaft assembly assembled in the eighth step, and screwing the upper end threads of the tensile joint 16 and the rotor 22 together.
The tenth step: the outer shell 1 of the slip ring assembly is sleeved outside the slip ring assembly 6, the positioning centralizer 4 and the slip ring centralizer 7 and screwed with the upper end thread of the anti-falling transition joint 19.
The eleventh step: and finally, locking the positioning centralizer 4 by using a positioning pin 5, and completing the assembly of the central line-passing synergistic screw motor.
The first step to the tenth step are the basic steps of center wire through efficiency-increasing screw motor assembly. Other assembly methods are also possible, as long as the construction method from fig. 1 to fig. 5 is complied with.
As a preferred implementation manner, the slip ring connection assembly in the wire-passing screw drill and the wire-passing method provided in this embodiment may adopt the structure of embodiment 1, the wire-passing motor assembly may adopt the structure of embodiment 2, the wire-passing cardan shaft assembly may adopt the structure of embodiment 3, and the wire-passing transmission shaft assembly may adopt the structure of embodiment 4.
As a preferred implementation manner, the thread-passing screw drill and the thread-passing method provided in this embodiment may also be implemented by using one or more structures in embodiments 1 to 4.
According to the invention, the problem that a power supply and a signal pass through the screw motor in a wired mode is solved through the central line passing mode, the simultaneous transmission of the power supply and the signal is realized, the device is suitable for a rotary guide system and other underground control detection systems, and the circuit can pass through the screw motor to realize the simultaneous transmission of the signal and the electric power, so that the function of passing through the screw motor in a wired mode is provided for the transmission of the electric power and the signal of the underground control system, and the rotary torque of the underground control system and the drilling speed of a drilling machine are improved.
In this embodiment, while, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as may be understood by those of ordinary skill in the art.
It is noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A motor rotor axial rattle compensation mechanism, comprising:
a drop-resistant tensile joint (16);
an axially floating shaft (15) disposed within the drop-resistant tensile joint (16) and movable in an axial direction of the drop-resistant tensile joint (16);
the upper end and the lower end of the axial floating shaft (15) are respectively and electrically connected with a transmission medium in the flexible shaft (8) and a conductive connecting device on the rotor;
the axial floating shaft (15) is of a hollow structure, and a transmission medium can penetrate through the threading hole to be connected with the lower conductive contact pin (17) of the axial floating shaft; the upper end of the axial floating shaft (15) is sleeved with the flexible shaft (8) and is electrically connected with a transmission medium in the flexible shaft (8) through a conductive contact pin (30) on the floating shaft; the lower conductive contact pin (17) of the axial floating shaft is electrically connected with the upper conductive socket (18) of the rotor;
a tangent plane is arranged on the side wall of one end of the axial floating shaft (15), and the tangent plane and the inner wall of the anti-drop tensile joint (16) form a cavity capable of accommodating an axial floating shaft spring (27);
an axial floating shaft limiting pin (14) is arranged in the anti-drop tensile joint (16), a groove is formed in the side wall of the axial floating shaft (15), and one end of the axial floating shaft limiting pin (14) is inserted into the groove to limit axial movement of the axial floating shaft (15).
2. A motor rotor axial vibration compensation mechanism according to claim 1, characterized in that a hard alloy sleeve (11) is arranged on the top of the anti-drop tensile joint (16), and the upper end of the axial floating shaft (15) is sleeved with the flexible shaft (8) through the hard alloy sleeve (11).
3. A motor rotor axial vibration compensation mechanism according to claim 1, characterized in that a rotor center winding wire seat (23-1) is arranged in the drop-proof tensile joint (16), and a transmission line passes through a wire passing hole in the axial floating shaft (15), then is wound through the rotor center winding wire seat (23-1) and is connected with a rotor lower conductive contact pin (31).
4. A motor rotor center wire passing method of a motor rotor axial chatter compensating mechanism according to claim 1, comprising:
an axial floating shaft (15) capable of moving along the axial direction is arranged in the anti-drop tensile joint (16), and the upper end and the lower end of the axial floating shaft (15) are respectively and electrically connected with a transmission medium in the flexible shaft (8) and a conductive connecting device on the rotor.
5. The motor rotor center wire passing method according to claim 4, comprising the following steps of: a tangent plane is arranged on the side wall of one end of the axial floating shaft (15), and an axial floating shaft spring (27) is arranged in a cavity formed by the tangent plane and the inner wall of the anti-drop tensile joint (16).
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| CN202011370890.7A CN112523680B (en) | 2020-11-30 | 2020-11-30 | Motor rotor axial vibration compensation mechanism and central wire passing method |
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| CN202011370890.7A CN112523680B (en) | 2020-11-30 | 2020-11-30 | Motor rotor axial vibration compensation mechanism and central wire passing method |
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| CN112523680B true CN112523680B (en) | 2022-07-19 |
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| CN207701127U (en) * | 2017-12-25 | 2018-08-07 | 中天启明石油技术有限公司 | It is a kind of suitable for high temperature orientation survey with boring apparatus structure |
| CN108979523A (en) * | 2018-06-28 | 2018-12-11 | 中国科学院地质与地球物理研究所 | Power transmission and apparatus for transmitting signal between a kind of screw drilling tool stator and rotor |
| CN111764825A (en) * | 2020-06-30 | 2020-10-13 | 中国石油天然气集团有限公司 | Underground rotary guide device |
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| CN206035378U (en) * | 2016-08-29 | 2017-03-22 | 盐城市荣嘉机械制造有限公司 | Screw drilling tool |
| CN106639898A (en) * | 2017-01-04 | 2017-05-10 | 北京赛诺凤凰能源科技有限公司 | Line-passing screw drilling tool |
| CN207701127U (en) * | 2017-12-25 | 2018-08-07 | 中天启明石油技术有限公司 | It is a kind of suitable for high temperature orientation survey with boring apparatus structure |
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| CN112523680A (en) | 2021-03-19 |
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Effective date of registration: 20221219 Address after: 100120 Xicheng District six paw Kang in Beijing City Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. Patentee after: BEIJING PETROLEUM MACHINERY Co.,Ltd. Address before: 100120 Xicheng District six paw Kang in Beijing City Patentee before: CHINA NATIONAL PETROLEUM Corp. Patentee before: CNPC ENGINEERING TECHNOLOGY R & D Co.,Ltd. |