Petroleum drilling bit device

Abstract

The invention relates to the technical field of petroleum drill bits, in particular to a petroleum drilling drill bit device, and aims to solve the technical problems that an existing drill bit cannot give consideration to application range, maintenance cost, tunneling speed and the like. The petroleum drilling drill bit device comprises a drill bit telescopic assembly, a pdc drill bit and a roller bit. The drill bit telescopic assembly comprises a fixed base, a first circular ring, a movable base, a telescopic mechanism and a connecting rod mechanism. The pdc drill bit is arranged on the moving base in a penetrating mode. The roller bits can stretch out and draw back along the axes of the roller bits, and the multiple roller bits are arranged on the moving base around the axis of the pdc drill bit at intervals. Through cooperation of the telescopic mechanism and the connecting rod mechanism, switching tunneling of the two petroleum drilling bits can be achieved, and the petroleum drilling bit device can be suitable for more terrains.

Description

Technical Field

[0001] The present invention relates to the technical field of oil drill bits, and in particular to an oil well drilling drill bit device. Background Art

[0002] The oil drill bit is an important component of oil drilling tools. It is used to make drilling when extracting oil. The quality of its working performance will directly affect the drilling quality, drilling efficiency and drilling cost. At present, oil drill bits are mainly divided into two types: roller cone drill bits and PDC drill bits. Among them, roller cone drill bits are suitable for many types of rock formations, but their excavation speed is slow, the blade life is short, and they need to be replaced frequently, and the maintenance cost is high. PDC drill bits have fast excavation speed and low maintenance cost, but they are suitable for fewer types of rock formations. Based on this, it is necessary to develop a drill bit that can adapt to many types of rock formations, has low maintenance costs, and has a fast excavation speed. Summary of the invention

[0003] The object of the present invention is to provide a petroleum drilling drill bit device to solve the technical problems that the existing drill bits cannot take into account aspects such as application scope, maintenance cost and excavation speed.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0005] The oil drilling drill bit device provided by the present invention comprises: a drill bit telescopic assembly, a PDC drill bit and a roller drill bit; the drill bit telescopic assembly comprises a fixed base, a first ring, a moving base, a telescopic mechanism and a connecting rod mechanism;

[0006] The fixed base has a first annular cavity and a first hole, the first annular cavity extends along the circumference of the first hole, and a first duct hole connecting the first hole and the first annular cavity is provided on the side wall between the first hole and the first annular cavity;

[0007] The first circular ring is plugged and matched with the fixed base through the first hole, and a first guide hole facing the first duct hole is provided on the side wall of the first circular ring;

[0008] The moving base is plugged into and matched with the fixed base through the first hole, and is connected to the first ring through a connecting line;

[0009] The telescopic mechanism is connected between the fixed base and the moving base and is communicated with the first annular cavity. The telescopic mechanism is configured to drive the moving base to make a first linear motion in a direction away from the fixed base under a pressurized condition, and to drive the moving base to make a second linear motion in a direction close to the fixed base under a depressurized condition;

[0010] The PDC drill bit is inserted into the motion base;

[0011] The roller drill bit can be extended and retracted along its own axis, and is provided with a plurality of roller drill bits, which are arranged on the motion base at intervals around the axis of the PDC drill bit;

[0012] The connecting rod mechanism corresponds to the roller drill bit one by one, and is respectively connected to the roller drill bit, the PDC drill bit, the moving base and the fixed base. The connecting rod mechanism can drive the roller drill bit to flip over so as to open outward when the moving base makes a first linear motion, and drive the PDC drill bit to slide so as to extend the roller drill bit. The connecting rod mechanism can drive the roller drill bit to flip over so as to shrink inward when the moving base makes a second linear motion, and drive the PDC drill bit to slide so as to retract the roller drill bit.

[0013] Furthermore, the telescopic mechanism includes a piston rod, a pressure cylinder and a tension spring;

[0014] The piston rod is fixedly connected to the motion base;

[0015] The pressure cylinder is sleeved on the piston rod, fixedly connected to the fixed base, and communicated with the first annular cavity;

[0016] The tension spring is sleeved on the pressure cylinder and connected between the fixed base and the moving base. The tension spring enables the moving base to have a tendency to perform a second linear motion.

[0017] Furthermore, the motion base has a second annular cavity and a second channel, the second annular cavity extends along the circumference of the second channel, the second channel is used to penetrate the PDC drill bit and is connected to the first channel;

[0018] The drill bit telescopic assembly further includes a water washing mechanism, which includes a feeler rod, a bellows, a first one-way valve and a spray pipe;

[0019] The touch rod is fixedly connected to the motion base;

[0020] The bellows is sleeved on the touch rod and fixedly connected between the moving base and the fixed base, and two ends of the bellows are respectively connected to the first annular cavity and the second annular cavity;

[0021] The first one-way valve is arranged in the bellows and between the touch rod and the fixed base;

[0022] The nozzle is fixedly connected to the motion base and communicated with the second annular cavity.

[0023] Furthermore, the connecting rod mechanism includes a gear fixing seat, a connecting rod, a guide column and a pry bar;

[0024] The cone fixing seat is fixedly connected to the moving base, and the cone drill bit is hinged to the cone fixing seat;

[0025] One end of the connecting rod is hinged to the roller drill bit, and the other end is hinged to the fixed base;

[0026] The guide column is rotatably matched with the cone fixing seat;

[0027] One end of the pry bar is hinged to the connecting rod, and the other end extends along a direction perpendicular to the rotation axis of the guide column to pass through the guide column and is plugged into the PDC drill bit.

[0028] Further, the roller cone drill bit includes a linear drive, a first roller cone and a multi-layer second roller cone;

[0029] In the driving direction of the linear drive, the first gear and the multiple layers of the second gear are distributed in sequence;

[0030] The first cone is slidably connected to the second cone, and the second cones of adjacent layers are also slidably connected to each other;

[0031] The body of the linear drive is arranged on the second gear far away from the first gear, and the driving end is fixedly connected to the first gear.

[0032] Furthermore, the first gear includes a first protrusion, a first base, and a first motor, a rotating wheel, and a moving ring disposed on the first base;

[0033] Along the circumference of the first base, a plurality of the first protrusions are arranged at intervals on the side wall of the first base and are hinged to the first base, and the mining ends of the first protrusions are outside the first base;

[0034] The first motor is transmission-connected to the rotating wheel;

[0035] Along the circumference of the rotating wheel, the side surface of the rotating wheel is provided with an undulating sliding groove;

[0036] The moving ring is sleeved on the rotating wheel, and its inner wall is provided with a protrusion for matching with the sliding groove, and its outer wall is provided with a limiting groove extending along its circumference for accommodating the end of the first protrusion away from the mining end.

[0037] Furthermore, the second cone includes a second protrusion, a second base, a compression spring, a second motor, and a rotating disk disposed on the second base;

[0038] The second protrusions are disposed through the side walls of the second base, and a plurality of the second protrusions are distributed at intervals along the circumference of the second base;

[0039] The compression spring corresponds to the second protrusion one by one and is connected between the second protrusion and the second base, and the compression spring makes the second protrusion have a tendency to move toward the inside of the second base;

[0040] The second motor is drivingly connected to the turntable;

[0041] The side wall of the rotating disk cooperates with the second protrusion through a first inclined wedge structure.

[0042] Further, the PDC drill bit includes a drill bit body, a third protrusion, an elastic member and a reset rod;

[0043] A guide groove is provided on one end surface of the drill body, and the guide groove extends between the axis and the side surface of the drill body along the radial direction of the drill body;

[0044] The third protrusion is embedded in the guide rail groove and can slide along the extension direction of the guide rail groove;

[0045] The elastic member is arranged in the guide rail groove and is respectively connected to the drill body and the third protrusion, and the elastic member makes the third protrusion have a tendency to slide away from the axis of the drill body;

[0046] A reset rod is fixedly connected to the motion base, and one end of the reset rod away from the motion base cooperates with the third protrusion via a second inclined wedge structure.

[0047] Furthermore, the oil drilling drill bit device also includes an anti-sticking force assembly;

[0048] The anti-stuck force-adding assembly comprises a force-adding base, a guide tube, a second ring, a drill pipe connecting tube and a force-adding mechanism;

[0049] One end of the force-added base is fixedly connected to the fixed base, and the other end is rotatably connected to the drill rod connecting tube. The force-added base has a third hole, and the third hole is respectively connected to the first hole and the drill rod connecting tube. A second duct hole is provided on the side wall of the drill rod body.

[0050] One end of the conduit is connected to the second duct hole, and the other end extends to the force adding mechanism and is connected to the force adding mechanism;

[0051] The second ring is rotatably matched with the force-adding base and is located between the second duct hole and the conduit to block the communication between the second duct hole and the conduit. A second flow guide hole is provided on the side wall of the second ring. The second flow guide hole is staggered with the second duct hole in an initial state.

[0052] The drill rod connecting tube is drivingly connected to the second ring, and a first spring is connected between the drill rod connecting tube and the force base, and the first spring makes the force base have a tendency to rotate synchronously with the drill rod connecting tube;

[0053] The force-adding mechanism is arranged on the force-adding base and is configured to impact the force-adding base under a pressurized condition, so that the force-adding base has a tendency to rotate around the axis of the drill pipe connecting tube.

[0054] Further, the force-adding mechanism includes a striking block and a driving assembly;

[0055] An impact block is provided on the inner wall of the force-adding base;

[0056] The knocking block is rotatably matched with the force-adding base, and a second spring is arranged between the knocking block and the force-adding base, and the second spring enables the knocking block to have a tendency to rotate to collide with the impact block under a deformation condition;

[0057] The driving assembly is connected to the knocking block via an incomplete gear structure to drive the knocking block to rotate, thereby correspondingly deforming the second spring.

[0058] In summary, the technical effects that can be achieved by the oil drilling drill bit device provided by the present invention are:

[0059] In the oil drilling drill bit device, when the drilling fluid flows through the first channel, part of the drilling fluid will enter the first annular cavity through the first duct hole and the first guide hole, so that the telescopic mechanism is pressurized, and then the telescopic mechanism will drive the moving base to make a first linear motion in the direction away from the fixed base. At the same time, under the transmission of the connecting rod mechanism, multiple roller drill bits will be turned outward, and the PDC drill bit will slide out; when the drill bit device is excavating, starting the roller drill bit can increase the mining efficiency. When the roller drill bit is about to be leveled, the roller drill bit shrinks, so that the drill bit switching is completed, and the PDC drill bit is used for mining.

[0060] In connection with the above, when the PDC drill bit slides out, the moving base will pull the first circular ring to move through the connecting line, so that the first guide hole of the first circular ring and the first duct hole of the fixed base are misaligned, blocking the connection between the first duct and the first annular cavity. At this time, the drilling fluid in the first annular cavity will lose pressure, causing the telescopic mechanism to be in a depressurized state; after the telescopic mechanism loses pressure, the moving base will reset, that is, it will make a second linear motion in the direction close to the fixed base. When the moving base is restored to its original position, the roller drill bit will shrink under the linkage of the connecting rod mechanism, and the PDC drill bit will slide and retract at the same time, thus switching to the roller drill bit for mining, completing a telescopic and drill bit switching process. It should be noted here that the PDC drill bit will hit the first circular ring when resetting, so that the first circular ring returns to its original position.

[0061] It can be seen that compared with the existing technology, the oil drilling drill bit device can realize the switching excavation of two oil drill bits, so that it can be suitable for more terrains; the use of the oil drilling drill bit device increases the service life of the drill bit, does not need to be replaced frequently, and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0063] Figure 1 A schematic diagram of the structure of a petroleum drilling drill bit device provided by an embodiment of the present invention;

[0064] Figure 2 A cross-sectional view of a petroleum drilling drill bit device provided by an embodiment of the present invention;

[0065] Figure 3 A schematic diagram of the structure of the oil well drilling drill bit device provided by an embodiment of the present invention after the force base is removed;

[0066] Figure 4 A schematic diagram of the structure of the drill bit telescopic assembly and the oil drill bit provided by the embodiment of the present invention;

[0067] Figure 5 A schematic structural diagram of a drill bit telescopic assembly provided in an embodiment of the present invention;

[0068] Figure 6 A distribution diagram of a roller drill bit provided by an embodiment of the present invention;

[0069] Figure 7 A schematic diagram of the structure of a fixed base provided in an embodiment of the present invention;

[0070] Figure 8 A cross-sectional view of a fixed base provided in an embodiment of the present invention;

[0071] Fig. 9 A schematic diagram of the structure of a first ring provided in an embodiment of the present invention;

[0072] Fig.10 A schematic diagram of the structure of a motion base provided by an embodiment of the present invention;

[0073] Fig.11 A schematic structural diagram of a roller drill bit provided in an embodiment of the present invention;

[0074] Fig.12A cross-sectional view of a roller drill bit provided by an embodiment of the present invention;

[0075] Fig.13 An exploded view of a roller drill bit provided in an embodiment of the present invention;

[0076] Fig.14 An exploded view of a first gear provided by an embodiment of the present invention;

[0077] Fig.15 An exploded view of a second gear provided by an embodiment of the present invention;

[0078] Fig.16 A schematic diagram of the structure of a PDC drill bit provided in an embodiment of the present invention;

[0079] Fig.17 An exploded view of a PDC drill bit provided in an embodiment of the present invention;

[0080] Fig.18 A schematic structural diagram of an anti-stuck force-adding assembly provided in an embodiment of the present invention;

[0081] Fig.19 A schematic diagram of the connection between the force-adding base and the transmission base provided in an embodiment of the present invention;

[0082] Fig. 20 A schematic diagram of the structure of a knocking block provided in an embodiment of the present invention;

[0083] Fig.21 A schematic diagram of the structure of a portion of a force-adding base provided in an embodiment of the present invention;

[0084] Fig. 22 for Fig.21 A partial cross-sectional view of

[0085] Fig.23 A schematic diagram of the structure of a second ring provided in an embodiment of the present invention;

[0086] Fig.24 A schematic diagram of the structure of a transmission base provided in an embodiment of the present invention;

[0087] Fig.25 A schematic diagram of the structure of a drive assembly provided by an embodiment of the present invention;

[0088] Fig.26 A schematic structural diagram of an impeller provided in an embodiment of the present invention.

[0089] Icons: 1-pdc drill bit; 1.1-drill bit body; 1.2-third protrusion; 1.3-elastic member; 1.1.1-guide groove;

[0090] 2-roller drill bit; 2.1-linear drive; 2.2-first roller; 2.3-second roller; 2.2.1-first convex block; 2.2.2-first base; 2.2.3-first motor; 2.2.4-rotating wheel; 2.2.5-moving ring; 2.2.6-first end cover; 2.3.1-second convex block; 2.3.2-second base; 2.3.3-compression spring; 2.3.4-second motor; 2.3.5-rotating disk; 2.3.6-second end cover;

[0091] 3-fixed base; 3.1-first annular cavity; 3.2-first channel; 3.3-first duct hole;

[0092] 4-first circular ring; 4.1-first flow guide hole;

[0093] 5-motion base; 5.1-second annular cavity;

[0094] 6-piston rod; 7-pressure cylinder; 8-tension spring; 9-touch rod; 10-bellows; 11-first one-way valve; 12-nozzle; 13-gear fixing seat; 14-connecting rod; 15-guide column; 16-crowbar; 17-reset rod;

[0095] 18-forced base; 18.1-second duct hole; 18.2-impact block; 18.3-flow hole;

[0096] 19-catheter;

[0097] 20- second circular ring; 20.1- second flow guide hole;

[0098] 21-drill pipe connecting tube; 22-first spring; 23-knocking block;

[0099] 24-driving assembly; 24.1-impeller;

[0100] 25-second spring; 26-transmission seat. DETAILED DESCRIPTION

[0101] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0102] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0103] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0104] The oil drill bit is an important component of oil drilling tools. It is used to make drilling when extracting oil. The quality of its working performance will directly affect the drilling quality, drilling efficiency and drilling cost. At present, oil drill bits are mainly divided into two types: roller cone drill bits and PDC drill bits. Among them, roller cone drill bits are suitable for many types of rock formations, but their excavation speed is slow, the blade life is short, and they need to be replaced frequently, and the maintenance cost is high. PDC drill bits have fast excavation speed and low maintenance cost, but they are suitable for fewer types of rock formations. Based on this, it is necessary to develop a drill bit that can adapt to many types of rock formations, has low maintenance costs, and has a fast excavation speed.

[0105] In view of this, the present invention provides an oil drilling drill bit device, including a drill bit telescopic assembly, a PDC drill bit 1 and a roller drill bit 2; the drill bit telescopic assembly includes a fixed base 3, a first circular ring 4, a moving base 5, a telescopic mechanism and a connecting rod mechanism; the fixed base 3 has a first annular cavity 3.1 and a first channel 3.2, the first annular cavity 3.1 extends along the circumference of the first channel 3.2, and a first duct hole 3.3 connecting the first channel 3.2 and the first annular cavity 3.1 is provided on the side wall; the first circular ring 4 is plugged with the fixed base 3 through the first channel 3.2, and a first guide hole 4.1 facing the first duct hole 3.3 is provided on the side wall of the first circular ring 4; the moving base 5 is plugged with the fixed base 3 through the first channel 3.2, and is connected to the first circular ring 4 through a connecting line; the telescopic mechanism is connected between the fixed base 3 and the moving base 5, and is connected to the first annular cavity 3.1, and the telescopic mechanism The structure is configured to drive the moving base 5 to make a first linear motion in a direction away from the fixed base 3 under a pressurized working condition, and drive the moving base 5 to make a second linear motion in a direction close to the fixed base 3 under a depressurized working condition; the PDC drill bit 1 is penetrated by the moving base 5; the roller drill bit 2 can be extended and retracted along its own axis, and is provided with a plurality of roller drill bits 2, which are arranged on the moving base 5 at intervals around the axis of the PDC drill bit 1; the connecting rod mechanism corresponds to the roller drill bit 2 one by one, and is respectively connected to the roller drill bit 2, the PDC drill bit 1, the moving base 5 and the fixed base 3, and the connecting rod mechanism can drive the roller drill bit 2 to flip and open outward under the working condition that the moving base 5 makes a first linear motion, drive the PDC drill bit 1 to slide, so as to extend the roller drill bit 2, and can drive the roller drill bit 2 to flip and shrink inward under the working condition that the moving base 5 makes a second linear motion, and drive the PDC drill bit 1 to slide, so as to retract the roller drill bit 2.

[0106] In the oil drilling bit device, when the drilling fluid flows through the first channel 3.2, part of the drilling fluid will enter the first annular cavity 3.1 through the first duct hole 3.3 and the first guide hole 4.1, so that the telescopic mechanism is pressurized, and then the telescopic mechanism will drive the moving base 5 to make a first linear motion in the direction away from the fixed base 3. At the same time, under the transmission of the connecting rod mechanism, multiple roller drill bits 2 will be turned outward, and the PDC drill bit 1 will slide out; when the drill bit device is excavating, starting the roller drill bit 2 can increase the mining efficiency. When the roller drill bit 2 is about to be leveled, the roller drill bit 2 shrinks, so that the drill bit switching is completed, and the PDC drill bit 1 is used for mining.

[0107] In continuation of the above, while the PDC drill bit 1 slides out, the moving base 5 will pull the first ring 4 to move through the connecting line, so that the first guide hole 4.1 of the first ring 4 is misaligned with the first duct hole 3.3 of the fixed base 3, blocking the connection between the first channel 3.2 and the first annular cavity 3.1. At this time, the drilling fluid in the first annular cavity 3.1 will lose pressure, causing the telescopic mechanism to be in a depressurized state; after the telescopic mechanism loses pressure, the moving base 5 will reset, that is, it will make a second linear motion in the direction close to the fixed base 3. When the moving base 5 is restored to its original position, the roller drill bit 2 will shrink under the linkage of the connecting rod mechanism, and the PDC drill bit 1 will slide and retract, so that the roller drill bit 2 is switched to for mining, completing a telescopic and drill bit switching process. It should be noted here that the PDC drill bit 1 will hit the first ring 4 when resetting, so that the first ring 4 returns to its original position.

[0108] It can be seen that compared with the existing technology, the oil drilling drill bit device can realize the switching excavation of two oil drill bits, so that it can be suitable for more terrains; the use of the oil drilling drill bit device increases the service life of the drill bit, does not need to be replaced frequently, and reduces maintenance costs.

[0109] The following combination Figures 1 to 26 The structure and shape of the oil well drilling drill bit device provided in this embodiment are described in detail:

[0110] Preferably, reference Figures 1 to 10 The telescopic mechanism includes a piston rod 6, a pressure cylinder 7 and a tension spring 8; the piston rod 6 is fixedly connected to the moving base 5; the pressure cylinder 7 is sleeved on the piston rod 6, and is fixedly connected to the fixed base 3, and is communicated with the first annular cavity 3.1; the tension spring 8 is sleeved on the pressure cylinder 7, and is connected between the fixed base 3 and the moving base 5, and the tension spring 8 makes the moving base 5 have a tendency to perform a second linear motion.

[0111] refer to Figure 4 When the drilling fluid flows through the two first flow guide holes 4.1 around the first circular ring 4, since the first flow guide holes 4.1 overlap with the first duct hole 3.3, part of the drilling fluid will flow into the first annular cavity 3.1, causing the pressure cylinder 7 to be pressurized, thereby pushing the four piston rods 6 at the bottom of the moving base 5 to move upward, and stretching the tension spring 8, so that the moving base 5 moves upward synchronously; the bottom of the moving base 5 is tied with a steel wire rope, which is connected to the first circular ring 4. When the moving base 5 moves upward, it pulls the first circular ring 4 to move upward. After the drilling fluid inside the first annular cavity 3.1 loses pressure, under the action of the restoring force of the tension spring 8, the moving base 5 moves downward and returns to its original position.

[0112] Further, combined with Figures 4 to 10As shown, the moving base 5 has a second annular cavity 5.1 and a second channel, the second annular cavity 5.1 extends along the circumference of the second channel, the second channel is used to penetrate the PDC drill bit 1, and is connected to the first channel 3.2; the drill bit telescopic assembly also includes a water washing mechanism, the water washing mechanism includes a feeler rod 9, a bellows 10, a first one-way valve 11 and a nozzle 12; the feeler rod 9 is fixedly connected to the moving base 5; the bellows 10 is sleeved on the feeler rod 9 and fixedly connected between the moving base 5 and the fixed base 3, and the two ends of the bellows 10 are respectively connected to the first annular cavity 3.1 and the second annular cavity 5.1; the first one-way valve 11 is arranged in the bellows 10 and is located between the feeler rod 9 and the fixed base 3; the nozzle 12 is fixedly connected to the moving base 5 and is connected to the second annular cavity 5.1.

[0113] Specifically, when the moving base 5 is pulled back under the action of the tension spring 8, after a certain stroke, the moving base 5 will stop moving because there is still drilling fluid remaining in the first annular cavity 3.1 and the pressure cylinder 7 that has not been discharged. At this time, the feeler rod 9 below the moving base 5 will trigger the first one-way valve 11 due to the downward movement of the moving base 5, making the first one-way valve 11 invalid, and the remaining drilling fluid will flow into the bellows 10 through the first one-way valve 11, and enter the second annular cavity 5.1, and finally spray to the surface of the drill bit through the nozzle 12, playing the role of cleaning the surface of the drill bit. It should be added here that in the initial state, the feeler rod 9 will trigger the first one-way valve 11, making it invalid, but when the drilling fluid is injected into the pressure cylinder 7, the discharge volume of the first one-way valve 11 outlet is less than the injection volume of the pressure cylinder 7, and the moving base 5 will move, and close the first one-way valve 11 after the movement of part of the stroke.

[0114] Preferably, reference Figures 4 to 6 The connecting rod mechanism includes a roller fixing seat 13, a connecting rod 14, a guide column 15 and a pry bar 16; the roller fixing seat 13 is fixedly connected to the moving base 5, and the roller drill bit 2 is hinged to the roller fixing seat 13; one end of the connecting rod 14 is hinged to the roller drill bit 2, and the other end is hinged to the fixed base 3; the guide column 15 is rotatably matched with the roller fixing seat 13; one end of the pry bar 16 is hinged to the connecting rod 14, and the other end extends along a direction perpendicular to the rotation axis of the guide column 15 to pass through the guide column 15, and is plugged into the PDC drill bit 1.

[0115] Specifically, Figure 4 For example, when the moving base 5 moves upward, the connecting rod 14 will rotate, thereby driving the three upper roller drill bits 2 to flip outward, and while the connecting rod 14 moves, it will drive the pry bar 16 to perform a lever movement, prying the PDC drill bit 1 upward and extending; when the moving base 5 is pulled back to its original position under the tension of the tension spring 8, the roller drill bit 2 will shrink under the linkage of the connecting rod 14, and at the same time, the PDC drill bit 1 will also move downward and shrink under the action of the pry bar 16.

[0116] About roller drill bit 2, specifically:

[0117] refer to Figures 11 to 15 The roller drill bit 2 includes a linear drive 2.1, a first roller 2.2 and a multi-layer second roller 2.3; in the driving direction of the linear drive 2.1, the first roller 2.2 and the multi-layer second roller 2.3 are distributed in sequence; the first roller 2.2 is slidably connected to the second roller 2.3, and adjacent layers of the second rollers 2.3 are also slidably connected; the body of the linear drive 2.1 is arranged on the second roller 2.3 away from the first roller 2.2, and the driving end is fixedly connected to the first roller 2.2.

[0118] For details, please refer to Figures 11 to 15 The first cone 2.2 includes a first protrusion 2.2.1, a first base 2.2.2, a first end cover 2.2.6, a first motor 2.2.3, a rotating wheel 2.2.4, and a moving ring 2.2.5, which are arranged on the first base 2.2.2; along the circumference of the first base 2.2.2, a plurality of first protrusions 2.2.1 are arranged at intervals on the side wall of the first base 2.2.2 and are hinged to the first base 2.2.2, and the mining end of the first protrusion 2.2.1 is located on the first base 2.2 .2; the first motor 2.2.3 is connected to the rotating wheel 2.2.4 in transmission; along the circumference of the rotating wheel 2.2.4, the side of the rotating wheel 2.2.4 is provided with an undulating slide groove; the moving ring 2.2.5 is sleeved on the rotating wheel 2.2.4, and its inner wall is provided with two symmetrically arranged protrusions for matching with the slide groove, and the outer wall is provided with a limiting groove extending along its circumference for accommodating the end of the first protrusion 2.2.1 away from the sampling end; the first base 2.2.2 is connected to the driving end of the linear drive 2.1.

[0119] The second gear 2.3 includes a second protrusion 2.3.1, a second base 2.3.2, a second end cover 2.3.6, a compression spring 2.3.3, a second motor 2.3.4 and a rotating disc 2.3.5. The second protrusion 2.3.1 is passed through the side wall of the second base 2.3.2, and a plurality of second protrusions 2.3.1 are distributed at intervals along the circumference of the second base 2.3.2. The compression spring 2.3.3 corresponds to the second protrusion 2.3.1 one by one, and is connected between the second protrusion 2.3.1 and the second base 2.3.2. The compression spring 2.3.3 makes the second protrusion 2.3.1 have a tendency to move toward the inside of the second base 2.3.2; the second motor 2.3.4 is transmission-connected with the turntable 2.3.5; the side wall of the turntable 2.3.5 cooperates with the second protrusion 2.3.1 through a first inclined wedge structure; among two adjacent second gears 2.3, the second base 2.3.2 of one second gear 2.3 is slidably connected with the second end cover 2.3.6 of the other second gear 2.3; the first base 2.2.2 is slidably connected with the second end cover 2.3.6 of the adjacent second gear 2.3.

[0120] In the above design, combined with Figures 11 to 15 As shown, the linear drive 2.1 has two groups, and an electric push rod can be used. The electric push rod is retracted, so that the first cone 2.2 and the second cone 2.3 are retracted and retracted, thereby realizing the retraction of the cone drill bit 2; when the first motor 2.2.3 is started, the rotating wheel 2.2.4 rotates, and through the cooperation of the slide groove and the two protrusions, the moving ring 2.2.5 moves up and down, thereby pressing the first protrusion 2.2.1 to swing up and down; when the second motor 2.3.4 is started, the rotating disk 2.3.5 rotates, pushing the second protrusion 2.3.1 out, and compressing the compression spring 2.3.3. After the rotating disk 2.3.5 rotates to lose the cooperation with the second protrusion 2.3.1, the second protrusion 2.3.1 is retracted under the action of the restoring force of the compression spring 2.3.3.

[0121] About PDC drill bit 1, specifically:

[0122] refer to Fig.16 and Fig.17 The PDC drill bit 1 comprises a drill body 1.1, a third protrusion 1.2, an elastic member 1.3 and a reset rod 17; a guide groove 1.1.1 is provided on one end surface of the drill body 1.1, and the guide groove 1.1.1 extends between the axis and the side of the drill body 1.1 along the radial direction of the drill body 1.1; the third protrusion 1.2 is embedded in the guide groove 1.1.1 and can slide along the extension direction of the guide groove 1.1.1; the elastic member 1.3 is arranged in the guide groove 1.1.1, and is respectively connected to the drill body 1.1 and the third protrusion 1.2, and the elastic member 1.3 makes the third protrusion 1.2 have a tendency to slide in a direction away from the axis of the drill body 1.1; the reset rod 17 is fixedly connected to the moving base 5, and the end of the reset rod 17 away from the moving base 5 cooperates with the third protrusion 1.2 through a second wedge structure.

[0123] Specific, combined Figure 1 , Fig.16 and Fig.17 As shown, when the moving base 5 is pulled back to the original position by the tension spring 8, the PDC drill bit 1 will move downward under the action of the pry bar 16 and shrink. During the shrinkage, the bevel angle above the reset rod 17 will force the third protrusion 1.2 on the surface of the PDC drill bit 1 in the reduced diameter state to reset.

[0124] For further reference, Figures 1 to 3 as well as Figures 18 to 26The oil drilling bit device also includes an anti-stuck force-added assembly; the anti-stuck force-added assembly includes a force-added base 18, a guide tube 19, a second ring 20, a drill pipe connecting tube 21 and a force-added mechanism; one end of the force-added base 18 is fixedly connected to the fixed base 3, and the other end is rotatably connected to the drill pipe connecting tube 21. The force-added base 18 has a third channel, which is respectively connected to the first channel 3.2 and the drill pipe connecting tube 21, and a second duct hole 18.1 is provided on the side wall of the drill pipe body; one end of the guide tube 19 is connected to the second duct hole 18.1, and the other end extends to the force-added mechanism and is connected to the force-added mechanism; the second ring 20 is rotatably matched with the force-added base 18 and is in the second duct hole. A second guide hole 20.1 is arranged between the second duct hole 18.1 and the conduit 19 to block the communication between the second duct hole 18.1 and the conduit 19. A second guide hole 20.1 is arranged on the side wall of the second ring 20. The second guide hole 20.1 is staggered with the second duct hole 18.1 in the initial state. The drill rod connecting tube 21 is connected to the second ring 20 through a transmission seat 26, and a first spring 22 is connected to the force base 18. The first spring 22 makes the force base 18 have a tendency to rotate synchronously with the drill rod connecting tube 21. The force mechanism is arranged on the force base 18, and is configured to impact the force base 18 under the pressurized condition, so that the force base 18 has a tendency to rotate around the axis of the drill rod connecting tube 21.

[0125] Specifically, refer to Figures 18 to 26 The force-adding mechanism includes a striking block 23 and a driving assembly 24; an impact block 18.2 is provided on the inner wall of the force-adding base 18; the striking block 23 is rotatably matched with the force-adding base 18, and a second spring 25 is provided between the striking block 23 and the force-adding base 18, and the second spring 25 makes the striking block 23 have a tendency to rotate to collide with the impact block 18.2 under the deformation condition; the driving assembly 24 is connected to the striking block 23 through an incomplete gear structure to drive the striking block 23 to rotate, correspondingly deforming the second spring 25; the driving assembly 24 is provided with two, and about the third channel The axes are symmetrically distributed, and the driving assembly 24 includes a driving box and an impeller 24.1. The driving box is connected to the conduit 19 and is also connected to the flow hole 18.3 on the booster base 18. A second one-way valve is provided at the connection between the two. The second one-way valve is used to discharge the drilling fluid in the driving box and prevent the drilling fluid outside the drill bit device from entering the driving box; the impeller 24.1 is in the driving box, and a half gear is installed below it. The half gear is meshed with the full gear on the knocking block 23, and the upper part is synchronized with the impeller 24.1 in another driving assembly 24 through gears and synchronous belts.

[0126] Combination Figures 1 to 3 as well as Figures 18 to 26As shown, when the drill bit encounters a foreign object and gets stuck, the force-added base 18 stops rotating, and the drill pipe continues to apply torque, which compresses the first spring 22 and drives the transmission seat 26 integrated with the drill pipe connecting tube 21 to rotate. The special-shaped connecting rod 14 on the top of the transmission seat 26 rotates synchronously and drives the second ring 20 to rotate (the second ring 20 is installed inside the interlayer of the force-added base 18), so that the second guide hole 20.1 of the second ring 20 coincides with the second duct hole 18.1. In this way, the drilling fluid enters the conduit 19 through the second duct hole 18.1 and the second guide hole 20.1, and then enters the drive box to impact the impeller 24.1; the impeller 24.1 rotates under the impact of the drilling fluid and drives the half gear below it to rotate. Here, the synchronous belt synchronizes the rotation speeds of the two half gears, and the half gears rotate while It will drive the large gear at the center of the knocking block 23 to rotate together, thereby driving the knocking block 23 to move; when the knocking block 23 moves, the second spring 25 will be stretched to store force. When the knocking block 23 moves a certain angle, the half gear turns to the toothless side. At this time, the large gear at the center of the knocking block 23 loses its restraint, and the knocking block 23 is quickly reset under the action of the restoring force of the second spring 25, thereby hitting the impact block 18.2 once, giving an impact force to the force-added base 18; until the force-added base 18 rotates synchronously with the drill pipe, the first spring 22 is reset, the special-shaped connecting rod 14 drives the second ring 20 to reset, and the second guide hole 20.1 and the second duct hole 18.1 are misaligned again to prevent the drilling fluid from entering the conduit 19. At this time, the impeller 24.1 stops rotating and the knocking block 23 stops hitting, otherwise the knocking block 23 will continue to hit until the drill bit is free.

[0127] The working process of the oil well drilling drill bit device provided in this embodiment is as follows:

[0128] refer to Figures 1 to 26 In this embodiment, when drilling operations are required, a drill pipe is connected to the end of the drill pipe connecting tube 21, drilling fluid is injected into the drill pipe, the oil drilling drill bit device is placed in the well, and excavation begins.

[0129] Under normal working conditions, the drilling fluid in the center of the drill bit flows, and part of the drilling fluid will enter the first circular ring 4 through the annular cavity between the force-added base 18 and the inner wall of the first duct hole 3.3. When flowing through the two first guide holes 4.1 around the first circular ring 4, since the first guide holes 4.1 coincide with the first duct hole 3.3 of the fixed base 3, the drilling fluid will flow into the first annular cavity 3.1, thereby causing the pressure cylinder 7 to be pressurized, pushing the four piston rods 6 at the bottom of the moving base 5 to move upward, thereby driving the moving base 5 to move upward; while the moving base 5 moves upward, the connecting rod 14 rotates, thereby driving the three upper roller bits 2 to flip outward, and while the connecting rod 14 rotates, it also drives the crowbar 16 to perform a lever movement , thereby prying the PDC drill bit 1 upward and extending out; when the drill bit is excavating, the two sets of electric push rods inside the roller drill bit 2 can be controlled in real time to control the extension and retraction of the roller drill bit 2, control the second motor 2.3.4 to drive the turntable 2.3.5 to rotate, so as to push the second protrusion 2.3.1 out, and control the first motor 2.2.3 to drive the turntable 2.2.4 to rotate, so as to drive the moving ring 2.2.5 to move up and down, thereby pressing the first protrusion 2.2.1 to swing up and down, so as to increase the mining efficiency; when the roller drill bit 2 is about to be flattened, the electric push rod is driven to shrink the roller drill bit 2, and the third protrusion 1.2 of the PDC drill bit 1 will be pushed to the outer ring of the drill bit under the action of the elastic member 1.3 (such as a spring), and then the mining is switched to the PDC drill bit 1.

[0130] As mentioned above, while the PDC drill bit 1 moves upward, the moving base 5 pulls the first annular ring 4 upward through the wire rope, so that the first guide hole 4.1 of the first annular ring 4 is misaligned with the first duct hole 3.3 of the fixed base 3. At this time, the drilling fluid inside the first annular cavity 3.1 loses pressure, and the moving base 5 is pulled back by the tension spring 8; after being pulled back for a certain stroke, since there is still residual drilling fluid in the first annular cavity 3.1 and the pressure cylinder 7 that has not been discharged, it will stop moving. At this time, the feeler rod 9 under the moving base 5 will touch the first one-way valve 11 due to the downward movement of the moving base 5, making the first one-way valve 11 invalid, and then the drilling fluid in the pressure cylinder 7 and the first annular cavity 3.1 will flow into the bellows 10 through the first one-way valve 11, and finally sprayed to the drill bit surface through the nozzle 12, playing a role in cleaning the drill bit surface.

[0131] Continuing with the above, when the moving base 5 returns to its original position under the tension of the tension spring 8, the roller drill bit 2 will shrink under the linkage of the connecting rod 14, and the PDC drill bit 1 will also move downward and shrink under the action of the pry bar 16; when shrinking, the bevel angle above the reset rod 17 will force the third protrusion 1.2 on the surface of the PDC drill bit 1 in the variable diameter state to reset, and at the same time, the bottom of the moving base 5 will hit the first ring 4, knocking the first ring 4 back to its original position, connecting the first guide hole 4.1 and the first duct hole 3.3 of the first ring 4, and then switching to the roller drill bit 2 for mining, completing a telescopic and drill bit switching process.

[0132] When the drill bit encounters a foreign object and is stuck, since the force-adding base 18 stops rotating, the drill rod continues to apply torque, which compresses the first spring 22 and drives the special-shaped connecting rod 14 on the top of the drill rod connecting tube 21 to rotate. The rotation of the special-shaped connecting rod 14 drives the second ring 20 to rotate, so that the second guide hole 20.1 inside the second ring 20 coincides with the second duct hole 18.1, so that the drilling fluid at the center of the drill bit will enter the inside of the guide tube 19 through the second guide hole 20.1 and the second duct hole 18.1, and impact the impeller 24.1 inside the driving box, causing the impeller 2 4.1 rotates; when the impeller 24.1 rotates, the half gear below it rotates synchronously, and drives the large gear at the center of the knocking block 23 to rotate together, thereby driving the knocking block 23 to move. When the knocking block 23 rotates, it stretches the second spring 25; when the knocking block 23 moves a certain angle, the half gear turns to the toothless side and no longer meshes with the large gear. At this time, the knocking block 23 will quickly reset under the restoring force of the second spring 25, thereby hitting the impact block 18.2 on the boosting base 18, giving the boosting base 18 an impact force until the boosting base 18 rotates synchronously with the drill pipe. Second one-way valve

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A petroleum drilling drill bit device, characterized in that: include: A drill bit telescopic assembly, a PDC drill bit (1) and a roller drill bit (2); the drill bit telescopic assembly comprises a fixed base (3), a first ring (4), a moving base (5), a telescopic mechanism and a connecting rod mechanism; The fixed base (3) comprises a first annular cavity (3.1) and a first hole (3.2); the first annular cavity (3.1) extends along the circumference of the first hole (3.2); a first duct hole (3.3) connecting the first hole (3.2) and the first annular cavity (3.1) is provided on the side wall between the first hole (3.2) and the first annular cavity (3.1); The first circular ring (4) is plugged into and matched with the fixed base (3) through the first hole (3.2), and a first guide hole (4.1) facing the first duct hole (3.3) is provided on the side wall of the first circular ring (4); The moving base (5) is plug-fitted with the fixed base (3) through the first hole (3.2), and is connected to the first ring (4) through a connecting line; The telescopic mechanism is connected between the fixed base (3) and the moving base (5) and is connected to the first annular cavity (3.1). The telescopic mechanism is configured to drive the moving base (5) to make a first linear motion in a direction away from the fixed base (3) under a pressurized condition, and to drive the moving base (5) to make a second linear motion in a direction close to the fixed base (3) under a depressurized condition; The PDC drill bit (1) is inserted into the moving base (5); The roller drill bit (2) can be extended and retracted along its own axis, and is provided with a plurality of roller drill bits (2), which are arranged at intervals on the motion base (5) around the axis of the PDC drill bit (1); The connecting rod mechanism corresponds to the roller drill bit (2) one by one, and is respectively connected to the roller drill bit (2), the PDC drill bit (1), the moving base (5) and the fixed base (3). The connecting rod mechanism can drive the roller drill bit (2) to flip and open outward when the moving base (5) performs a first linear motion, and drive the PDC drill bit (1) to slide and extend the roller drill bit (2). The connecting rod mechanism can drive the roller drill bit (2) to flip and shrink inward when the moving base (5) performs a second linear motion, and drive the PDC drill bit (1) to slide and retract the roller drill bit (2).

2. The oil well drilling drill bit device according to claim 1, characterized in that: The telescopic mechanism comprises a piston rod (6), a pressure cylinder (7) and a tension spring (8); The piston rod (6) is fixedly connected to the moving base (5); The pressure cylinder (7) is sleeved on the piston rod (6), fixedly connected to the fixed base (3), and communicated with the first annular cavity (3.1); The tension spring (8) is sleeved on the pressure cylinder (7) and connected between the fixed base (3) and the moving base (5). The tension spring (8) enables the moving base (5) to have a tendency to perform a second linear motion.

3. The oil well drilling drill bit device according to claim 2, characterized in that: The motion base (5) has a second annular cavity (5.1) and a second hole, the second annular cavity (5.1) extends along the circumference of the second hole, the second hole is used to penetrate the PDC drill bit (1) and is connected to the first hole (3.2); The drill bit telescopic assembly also includes a water washing mechanism, which includes a feeler rod (9), a bellows (10), a first one-way valve (11) and a nozzle (12); The touch rod (9) is fixedly connected to the motion base (5); The bellows (10) is sleeved on the touch rod (9) and fixedly connected between the moving base (5) and the fixed base (3), and the two ends of the bellows (10) are respectively connected to the first annular cavity (3.1) and the second annular cavity (5.1); The first one-way valve (11) is arranged in the bellows (10) and between the touch rod (9) and the fixed base (3); The nozzle (12) is fixedly connected to the moving base (5) and communicates with the second annular cavity (5.1).

4. The oil well drilling drill bit device according to claim 1, characterized in that: The connecting rod mechanism comprises a gear fixing seat (13), a connecting rod (14), a guide column (15) and a pry bar (16); The cone fixing seat (13) is fixedly connected to the moving base (5), and the cone drill bit (2) is hinged to the cone fixing seat (13); One end of the connecting rod (14) is hinged to the roller drill bit (2), and the other end is hinged to the fixed base (3); The guide column (15) is rotatably matched with the gear fixing seat (13); One end of the pry bar (16) is hinged to the connecting rod (14), and the other end extends in a direction perpendicular to the rotation axis of the guide column (15) to pass through the guide column (15) and is plugged into the PDC drill bit (1).

5. The oil well drilling drill bit device according to claim 1, characterized in that: The roller drill bit (2) comprises a linear drive (2.1), a first roller (2.2) and a multi-layer second roller (2.3); In the driving direction of the linear drive (2.1), the first gear (2.2) and the multiple layers of the second gear (2.3) are distributed in sequence; The first cone (2.2) is slidably connected to the second cone (2.3), and the second cones (2.3) in adjacent layers are also slidably connected to each other; The body of the linear drive (2.1) is arranged on the second gear (2.3) away from the first gear (2.2), and the driving end is fixedly connected to the first gear (2.2).

6. The oil well drilling drill bit device according to claim 5, characterized in that: The first gear (2.2) comprises a first protrusion (2.2.1), a first base (2.2.2), a first motor (2.2.3) arranged on the first base (2.2.2), a rotating wheel (2.2.4), and a moving ring (2.2.5); Along the circumference of the first base (2.2.2), a plurality of the first protrusions (2.2.1) are arranged at intervals on the side wall of the first base (2.2.2) and are hinged to the first base (2.2.2), and the mining ends of the first protrusions (2.2.1) are located outside the first base (2.2.2); The first motor (2.2.3) is drivingly connected to the rotating wheel (2.2.4); Along the circumference of the rotating wheel (2.2.4), the side surface of the rotating wheel (2.2.4) is provided with an undulating sliding groove; The movement ring (2.2.5) is sleeved on the rotating wheel ( 2.2.4), the inner wall of which is provided with a protrusion for matching with the slide groove, and the outer wall is provided with a limiting groove extending along its circumference for accommodating the end of the first protrusion (2.2.1) away from the mining end.

7. The oil well drilling drill bit device according to claim 5, characterized in that: The second gear (2.3) comprises a second convex block (2.3.1), a second base (2.3.2), a compression spring (2.3.3) arranged on the second base (2.3.2), a second motor (2.3.4), and a rotating disk (2.3.5); The second convex block (2.3.1) is disposed through the side wall of the second base (2.3.2), and a plurality of the second convex blocks (2.3.1) are distributed at intervals along the circumference of the second base (2.3.2); The compression spring (2.3.3) corresponds to the second convex block (2.3.1) one by one and is connected between the second convex block (2.3.1) and the second base (2.3.2); the compression spring (2.3.3) enables the second convex block (2.3.1) to have a tendency to move toward the inside of the second base (2.3.2); The second motor (2.3.4) is drivingly connected to the rotating disk (2.3.5); The side wall of the rotating disk (2.3.5) cooperates with the second protrusion (2.3.1) via a first inclined wedge structure.

8. The oil well drilling drill bit device according to claim 1, characterized in that: The PDC drill bit (1) comprises a drill bit body (1.1), a third protrusion (1.2), an elastic member (1.3) and a reset rod (17); A guide groove (1.1.1) is provided on one end surface of the drill body (1.1), and the guide groove (1.1.1) extends between the axis and the side surface of the drill body (1.1) along the radial direction of the drill body (1.1); The third protrusion (1.2) is embedded in the guide rail groove (1.1.1) and can slide along the extension direction of the guide rail groove (1.1.1); The elastic member (1.3) is arranged in the guide rail groove (1.1.1) and is respectively connected to the drill body (1.1) and the third protrusion (1.2); the elastic member (1.3) causes the third protrusion (1.2) to have a tendency to slide in a direction away from the axis of the drill body (1.1); A reset rod (17) is fixedly connected to the motion base (5), and one end of the reset rod (17) away from the motion base (5) cooperates with the third protrusion (1.2) via a second inclined wedge structure.

9. The oil well drilling drill bit device according to any one of claims 1 to 8, characterized in that: The oil well drilling drill bit device also includes an anti-sticking force assembly; The anti-stuck force-adding assembly comprises a force-adding base (18), a guide tube (19), a second ring (20), a drill pipe connecting tube (21) and a force-adding mechanism; One end of the force-adding base (18) is fixedly connected to the fixed base (3), and the other end is rotatably connected to the drill rod connecting tube (21); the force-adding base (18) has a third hole, and the third hole is respectively connected to the first hole (3.2) and the drill rod connecting tube (21); a second duct hole (18.1) is provided on the side wall of the drill rod body; One end of the conduit (19) is connected to the second duct hole (18.1), and the other end extends to the force adding mechanism and is connected to the force adding mechanism; The second circular ring (20) is rotatably matched with the force-adding base (18) and is located between the second duct hole (18.1) and the conduit (19) to block the communication between the second duct hole (18.1) and the conduit (19); a second flow guide hole (20.1) is provided on the side wall of the second circular ring (20); and the second flow guide hole (20.1) is staggered with the second duct hole (18.1) in an initial state; The drill rod connecting tube (21) is drivingly connected to the second ring (20), and a first spring (22) is connected between the drill rod connecting tube (21) and the force base (18), wherein the first spring (22) enables the force base (18) to have a tendency to rotate synchronously with the drill rod connecting tube (21); The force-adding mechanism is disposed on the force-adding base (18) and is configured to impact the force-adding base (18) under a pressurized condition, so that the force-adding base (18) has a tendency to rotate around the axis of the drill rod connecting tube (21).

10. The oil well drilling drill bit device according to claim 9, characterized in that: The force-adding mechanism comprises a striking block (23) and a driving assembly (24); An impact block (18.2) is provided on the inner wall of the force-adding base (18); The knocking block (23) is rotatably matched with the force-applying base (18), and a second spring (25) is provided between the knocking block (23) and the force-applying base (18), wherein the second spring (25) enables the knocking block (23) to rotate to collide with the impact block (18.2) under a deformation condition; The driving assembly (24) is connected to the knocking block (23) via an incomplete gear structure to drive the knocking block (23) to rotate, thereby causing the second spring (25) to deform accordingly.

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