CN209115035U - A kind of more drill bit combined drilling tool system rotation swing mechanisms - Google Patents

Abstract

A kind of more drill bit combined drilling tool system rotation swing mechanisms are shorted and are formed by retainer plate, spinning motor, spinning motor support outside drill bit, drill bit limit door nut, drill bit pressure-transmitting joint, drill bit torsion pass connector, the small bearing of spinning motor righting, spinning motor.Spinning motor is in the motor slot that spinning motor support is shorted, it is fixed by retainer plate outside spinning motor, motor axis connection drill bit torsion pass connector, torque is transmitted to drill bit pressure-transmitting joint and then is transmitted to drill bit, drill bit limits door nut by drill bit and drill bit pressure-transmitting joint is fixed, spinning motor righting small bearing bracket bears the pressure from drill bit pressure transmission bearing in spinning motor support is shorted, and then bit pressure is transmitted to spinning motor support and is shorted.The utility model solves the problems, such as motor shaft torsion pass every pressure.

Description

A multi-bit combined drilling tool system auto-rotation slewing mechanism

technical field

The invention belongs to the technical field of drilling and drilling, and particularly relates to the technical fields of geological drilling, oil and gas drilling, hydrological well drilling, scientific drilling, underground construction and the like, in particular to a novel, multi-bit electric drive combined drilling system supporting The multi-bit autorotation slewing mechanism.

Background technique

For the traditional drill bits currently used in the field of drilling and drilling technology, the problem of uneven wear of the inner and outer diameters of the drill bit will occur during the drilling process, which seriously affects the drilling efficiency and the life of the drill bit. The multi-bit method can be used to solve this problem. question. A plurality of drill bits are evenly distributed around the head of the drill tool. During the drilling process, each drill bit both rotates and revolves to achieve the purpose of mutual conversion of the inner and outer diameters of the drill bit, so that the drill bit wears evenly. At present, the way of driving multi-bits to rotate is generally driven by a planetary gear train, but this structure is prone to gear jamming, and the service life is not high. Aiming at the difficulties and deficiencies of the current planetary bit driving system, a multi-bit combined drilling tool system rotation and rotation mechanism is proposed, which adopts the method of electrically driving a single bit, so that there is no complicated connection between each bit, and fundamentally solves the problem of planetary bit. At the same time, the autorotation slewing mechanism also solves the problem that the motor shaft only transmits torsion and pressure isolation, greatly improves the life of the multi-bit system, and solves the problem of uneven wear of the inner and outer diameters of the drill bits.

SUMMARY OF THE INVENTION

The purpose of the present invention is to equip a multi-bit electric drive combined drilling system with an autorotation rotary mechanism, which mainly provides the power for the autorotation of the drill bits, and solves the problem of the motor shaft transmission torsion and pressure isolation.

A multi-bit combined drilling tool system auto-rotation slewing mechanism, which is supported by a drill bit, a drill-bit gate nut, a drill-bit pressure transmission joint, a drill-bit torque transmission joint, an autorotation motor righting small bearing, an autorotation motor outer fixing ring, an autorotation motor, and an autorotation motor. It consists of a short connection, the outer fixing ring of the rotation motor has a bearing hole and a second bolt hole; the support short connection of the rotation motor has a motor slot, a wire slot and a first bolt hole;

The autorotation motor is embedded in the shorted motor slot supported by the autorotation motor, and is fixed by the outer fixing ring of the autorotation motor. The motor shaft of the autorotation motor is connected to the torque transmission joint of the drill bit, and the torque is transmitted to the pressure transmission joint of the drill bit and then to the drill bit. The door limit nut and the drill bit pressure transmission joint are fixed, and the small bearing seat of the rotation motor support is in the shorted bearing seat of the rotation motor support, and is subjected to the pressure from the small bearing of the rotation motor, and then the drilling pressure is transmitted to the motor line of the rotation motor support short circuit Placed in the wireway.

The working principle and using method of the present invention:

Pressure transmission process: the pressure acts on the drill bit—the pressure transmission joint of the drill bit—the inner ring of the small bearing of the autorotation motor righting—the support short-circuit of the autorotation motor—the drilling tool.

Torque transmission process: torque acts on the drill bit—the pressure transmission joint of the drill bit—the torque transmission joint of the drill bit—the motor shaft of the autorotation motor.

The rotation motor transmits the torque to the drill bit torque transmission joint, and the drill bit torque transmission joint connects the drill bit, so as to transmit the torque to the drill bit and realize the rotation of the drill bit.

The drill bit is composed of a drill bit cutting tooth, a drill bit nozzle and a drill bit rigid body. The drill bit cutting tooth is made of impregnated diamond, and is provided with two nozzles, which are symmetrically arranged.

The drill bit door limiting nut has a threaded hole in the middle, and a step is used to hold the drill bit.

The middle of the pressure transmission joint of the middle drill bit is a threaded hole with two steps, which is used for clamping the drill bit in cooperation with the drill bit gate nut.

The middle of the torque transfer joint of the drill bit is a threaded hole with a step.

The small righting bearing of the rotating motor is a pressure-resistant deep groove ball bearing.

Eight bearing holes are evenly distributed on the upper surface of the outer fixing ring of the autorotation motor, which are used to place the small bearing for the autorotation motor and the shaft of the torque transmission joint through the drill bit. Four second bolt holes are evenly distributed on the side, which are used for matching with the short-connected bolts of the autorotation motor support.

The autorotating motor support is shorted with eight motor slots for arranging the autorotating motor, and the lower part is provided with a wire slot for arranging the motor wires. There are four first bolt holes on the side, which are used for bolting with the outer fixing ring of the rotation motor.

The working principle of the motor shaft of the autorotation motor to transmit torque is as follows:

During the drilling process, the motor shaft of the autorotating motor transmits the torque to the torque transmission joint of the drill bit, which in turn transmits the torque to the drill bit through the pressure transmission joint of the drill bit, thereby realizing rock crushing.

The working principle of the isolation pressure of the motor shaft is as follows:

The drill bit part transmits the reaction force of the rock to the pressure transmission joint of the drill bit, and the pressure transmission joint of the drill bit contacts the inner ring of the small bearing of the rotation motor, and the small bearing of the rotation motor is placed in the bearing hole of the outer fixed ring of the rotation motor, so that the righting of the rotation motor is small. The bearing transmits the pressure to the outer fixed ring of the autorotation motor, and then transmits the pressure to the drilling tool part, avoiding the pressure from the drill bit part for the small bearing of the autorotation motor, and realizing the isolation pressure of the motor shaft.

Beneficial effects of the present invention:

The invention solves the problem of torque transmission and pressure isolation of the motor shaft

Description of drawings

FIG. 1 is a plan view of the present invention.

Figure 2 is a side view of the present invention.

FIG. 3 is a cross-sectional view of the present invention.

Fig. 4 is a sectional view of the transmission mechanism of the present invention.

FIG. 5 is a schematic diagram of the short-circuiting of the support of the rotation motor of the present invention.

FIG. 6 is a schematic diagram of the outer fixed ring of the autorotating motor of the present invention.

In the picture: 1-drill, 2-drill door limit nut, 3-drill pressure transmission joint, 4-drill torque transmission joint, 5-rotation motor righting small bearing, 6-rotation motor outer fixing ring, 7-rotation motor, 8 - Rotation motor support short connection, 801-motor slot, 802-wire slot, 803-first bolt hole, 601-bearing hole, 602-second bolt hole.

Detailed ways

Please refer to Fig. 1 to Fig. 6 , a multi-bit combined drilling tool system autorotation rotary mechanism is composed of a drill bit 1, a drill bit gate nut 2, a drill bit pressure transmission joint 3, a drill bit torque transmission joint 4, and an autorotation motor. The bearing 5, the rotation motor outer fixing ring 6, the rotation motor 7, and the rotation motor support short connection 8 are composed. The rotation motor outer fixing ring 6 has the bearing hole 601 and the second bolt hole 602; the rotation motor support short connection 8 has the motor slot 801, wire slot 802 and first bolt hole 803;

The autorotation motor 7 is embedded in the motor slot 801 of the autorotation motor support short-circuit 8, and is fixed by the autorotation motor outer fixing ring 6. The motor shaft of the autorotation motor 7 is connected to the drill bit torque transmission joint 4, and the torque is transmitted to the drill bit pressure transmission joint 3 and then It is transmitted to the drill bit 1. The drill bit 1 is fixed by the drill bit gate nut 2 and the drill bit pressure transmission joint 3. The small bearing 5 of the self-rotating motor is seated in the bearing seat 601 of the short-connection 8 of the self-rotating motor, and receives the pressure from the small bearing 5 of the self-rotating motor. pressure, and then transmit the drilling weight to the rotating motor support short circuit 8. The motor wire is placed in the wire slot 802.

The working principle and using method of the present invention:

Pressure transmission process: The pressure acts on the drill bit 1—the pressure transmission joint of the drill bit 3—the inner ring of the small bearing of the rotation motor righting 5—the support of the rotation motor is shorted 8—the drilling tool.

Torque transmission process: Torque acts on the drill bit 1-drill bit pressure transmission joint 3-drill bit torque transmission joint 4-the motor shaft of the rotation motor 7.

The autorotation motor 7 transmits the torque to the drill bit torque transmission joint 4 , and the drill bit torque transmission joint 4 is connected to the drill bit 1 , so as to transmit the torque to the drill bit 1 and realize the rotation of the drill bit 1 .

The drill bit 1 is composed of a drill bit cutting tooth, a drill bit nozzle, and a drill bit rigid body. The drill bit cutting tooth is made of impregnated diamond, and is provided with two nozzles, and the nozzles are arranged symmetrically.

The drill bit gate limiting nut 2 has a threaded hole in the middle, and has a step for clamping the drill bit 1 .

The middle drill bit pressure transmission joint 3 has a threaded hole in the middle with two steps, and is used for clamping the drill bit 1 in cooperation with the drill bit gate nut 2 .

The middle of the drill bit torque transfer joint 4 is a threaded hole with a step.

The small righting bearing 5 of the autorotation motor is a pressure-resistant deep groove ball bearing.

Eight bearing holes 601 are evenly distributed on the upper surface of the outer fixed ring 6 of the autorotation motor, which are used to place the small bearing 5 of the autorotation motor and the shaft of the torque transmission joint 4 through the drill. Four second bolt holes 602 are evenly distributed on the side surface, which are used to cooperate with the bolts of the short-circuit 8 of the autorotation motor support.

The autorotation motor support short 8 has eight motor slots 801 for accommodating the autorotation motor 7, and the lower part is provided with a wire slot 802 for accommodating the motor wires. There are four first bolt holes 803 on the side, which are used for bolt fixing with the outer fixing ring 6 of the autorotating motor.

The working principle of the motor shaft of the autorotation motor 7 to transmit torque is as follows:

During the drilling process, the motor shaft of the autorotation motor 7 transmits the torque to the bit torque transmission joint 4, and the bit torque transmission joint 4 transmits the torque to the drill bit 1 through the bit pressure transmission joint 3, thereby realizing rock crushing.

The working principle of the isolation pressure of the motor shaft is as follows:

Part 1 of the drill bit transmits the reaction force of the rock to the pressure transmission joint 3 of the drill bit, and the pressure transmission joint 3 of the drill bit contacts the inner ring of the small bearing 5 of the rotation motor, and the small bearing 5 of the rotation motor is placed in the bearing hole 601 of the outer fixed ring 6 of the rotation motor In this way, the small bearing 5 of the self-rotating motor will transmit the pressure to the outer fixing ring 6 of the rotating motor, and then the pressure will be transmitted to the drilling tool part, so as to avoid the small bearing 5 of the rotating motor to bear the pressure from the part of the drill bit, and realize the isolation pressure of the motor shaft. .

Claims (4)

1. a kind of more drill bit combined drilling tool system rotation swing mechanisms, it is characterised in that: be by drill bit (1), drill bit limit door spiral shell Female (2), drill bit pressure-transmitting joint (3), drill bit torsion pass connector (4), the small bearing of spinning motor righting (5), the outer retainer plate of spinning motor (6), spinning motor (7), spinning motor support is shorted (8) composition, the outer retainer plate (6) of spinning motor have bearing hole (601) and Second bolt hole (602)；Spinning motor support, which is shorted (8), has motor slot (801), wiring duct (802) and the first bolt hole (803)；

Spinning motor (7) embedded in spinning motor support be shorted (8) motor slot (801) in, by retainer plate outside spinning motor (6) into Row is fixed, the motor axis connection drill bit torsion pass connector (4) of spinning motor (7), and torque is transmitted to drill bit pressure-transmitting joint (3) and then is passed It gives drill bit (1), drill bit (1) is fixed by drill bit limit door nut (2) and drill bit pressure-transmitting joint (3), the small bearing of spinning motor righting (5) Seat is supported in spinning motor and is shorted in the bearing hole (601) of (8), bears the pressure for coming from the small bearing of spinning motor righting (5), into And bit pressure is transmitted to spinning motor support short circuit (8) motor lines and is placed in wiring duct (802).

2. a kind of more drill bit combined drilling tool system rotation swing mechanisms according to claim 1, it is characterised in that: described The small bearing of spinning motor righting (5) be resistance to compression deep groove ball bearing.

3. a kind of more drill bit combined drilling tool system rotation swing mechanisms according to claim 1, it is characterised in that: described Outer retainer plate (6) upper surface of spinning motor be uniformly distributed eight bearing holes (601), for placing the small bearing of spinning motor righting (5) and pass through the axis of drill bit torsion pass connector (4)；Outer retainer plate (6) side of spinning motor is uniformly distributed four the second bolts hole (602), for supporting the bolt for being shorted (8) to cooperate with spinning motor.

4. a kind of more drill bit combined drilling tool system rotation swing mechanisms according to claim 1, it is characterised in that: described Spinning motor support be shorted (8) and have eight for placing the motor slots (801) of spinning motor (7), motor is placed in lower part setting The wiring duct (802) of line, spinning motor support are shorted (8) side there are four the first bolt hole (803), for and spinning motor outside Retainer plate (6) carries out bolt and fixes.