CN116876985A

CN116876985A - EJO drill bit easy to correct

Info

Publication number: CN116876985A
Application number: CN202310689141.8A
Authority: CN
Inventors: 黄平志; 陈欢; 李新焕; 方良军; 江雪玲
Original assignee: Jinzhongtian Water Conservancy Construction Co ltd
Current assignee: Jinzhongtian Water Conservancy Construction Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-10-13
Anticipated expiration: 2043-06-09
Also published as: CN116876985B

Abstract

The application discloses an easy-to-rectify EJO drill bit, wherein a ball socket is fixedly arranged at one end of the inner side of a sleeve, a ball body is connected in the ball socket in a rolling way, a transmission rod is fixedly arranged on the ball body, a cutter disc seat is fixedly arranged at one end of the transmission rod, a drill bit body is fixedly arranged on the cutter disc seat, the other end of the transmission rod is fixedly connected with a power shaft through a universal joint, a rectification motor is fixedly arranged on the inner side wall of the sleeve, a first rotating gear is fixedly arranged at the power output end of the rectification motor, a ring gear is rotatably connected to the side wall of the sleeve, the first rotating gear is meshed with the ring gear, an electric push rod is fixedly arranged on the inner side wall of the ring gear, a lantern ring is hinged to the free end of the electric push rod, and the lantern ring is sleeved on the transmission rod. According to the EJO drill bit easy to correct, the drilling angle of the drill bit body can be conveniently adjusted by matching the correction motor with the electric push rod, so that timely correction is realized, the deviation value of drilling is reduced, and the EJO drill bit has a relatively high market application prospect.

Description

EJO drill bit easy to correct

Technical Field

The application relates to the technical field of building construction, in particular to an easy-to-rectify EJO drill bit.

Background

In the prior art, as disclosed in chinese patent publication No. CN106988683B, a telescopic deviation correcting drill bit for assisting in pipe-shed drilling is disclosed, which comprises a spiral drill bit body, telescopic blades arranged between main body blades arranged on the spiral drill bit body, a deviation correcting detection alarm device connected with the spiral drill bit body through a rotary joint, and a drill bit arranged at the foremost end of the spiral drill bit body. The deviation shifting of the pipe shed during drilling is detected through the handheld detection equipment of a worker, the computer guides the deviation correcting control device to intelligently control the telescopic blades to extend out for a required length, so that the drill bit can eccentrically rotate, the eccentric phenomenon in the construction process is corrected, and the telescopic blades retract to the original position after the deviation correction is completed. However, the technical scheme has the following defects: because this scheme can not adjust the drilling angle of drill bit, when the drilling direction skew takes place, along with the increase of drilling depth, the effect of rectifying of telescopic vane will become invalid gradually.

Disclosure of Invention

In order to overcome the defects of the prior art, the application provides the EJO drill bit easy to rectify, the drilling angle of the drill bit body can be conveniently adjusted by mutually matching the rectification motor and the electric push rod, timely rectification is realized, the deviation value of drilling is reduced, and the EJO drill bit has a higher market application prospect.

To achieve the purpose, the application adopts the following technical scheme:

the application provides an easy-to-rectify EJO drill bit, which comprises a sleeve, a ball socket, a ball body, a transmission rod, a cutter disc seat, a drill bit body, a universal joint and a rectify mechanism, wherein the ball socket is fixedly arranged at one end of the inner side of the sleeve, the ball body is connected with the ball body in a rolling way, the transmission rod is fixedly arranged on the ball body, one end of the transmission rod is fixedly arranged on the cutter disc seat, the other end of the transmission rod is fixedly connected with a power shaft through the universal joint, the rectify mechanism is fixedly arranged in the sleeve, the rectify mechanism comprises a rectify motor, a first rotating gear, a ring gear, an electric push rod and a sleeve ring, the rectify motor is fixedly arranged on the inner side wall of the sleeve, the first rotating gear is fixedly arranged at the power output end of the rectify motor, the ring gear is rotationally connected with the side wall of the sleeve, the first rotating gear is meshed with the ring gear, the free end of the electric push rod is hinged with the sleeve ring, and the sleeve ring is sleeved on the transmission rod.

In the preferred technical scheme of the application, the drill bit body comprises a drill bit shell and drill teeth, the side surface of the drill bit shell is provided with chip grooves, more than two drill teeth are uniformly and fixedly arranged on the inner side of each chip groove, each drill tooth comprises a drill blade and a threaded rod, the drill blade is fixedly arranged at one end of the threaded rod, and the other end of the threaded rod is in threaded connection with the drill bit shell.

In a preferred technical scheme of the application, the drill blade is made of hard alloy, and the drill blade is of a cylindrical structure.

In the preferred technical scheme of the application, an adjusting component is fixedly arranged on a drill bit shell, the adjusting component comprises a rotating rod, a second rotating gear, a first rack, an air bag, a heat conducting rod and a friction plate, a cavity is formed in the drill bit shell, the cavity is communicated with the outside through a through hole, the rotating rod is rotationally connected with the through hole, one end of the rotating rod is provided with a threaded hole, the threaded rod is in threaded connection with the threaded hole, the second rotating gear is fixedly arranged at the other end of the rotating rod, the first rack is slidably connected to the bottom of the cavity, the first rack is meshed with the second rotating gear, the friction plate is fixedly arranged on the outer side wall of the drill bit shell, one end of the heat conducting rod is fixedly connected with the friction plate, the other end of the heat conducting rod is fixedly connected with the air bag arranged in the cavity, and the air bag is fixedly connected with the first rack.

In the preferred technical scheme of the application, a baffle is arranged above the second rotating gear, the baffle is connected to the top wall of the cavity through a compression spring, the air bag can be abutted against the baffle, a limiting block is arranged at the bottom of the baffle, and the limiting block can be clamped with the second rotating gear.

In a preferred technical scheme of the application, a sealing cushion layer is arranged in the through hole.

In the preferred technical scheme of the application, a water spray pipe is fixedly arranged on the inner wall of the sleeve, one end of the water spray pipe is fixedly provided with a high-pressure spray head, and one end of the water spray pipe is connected with a water pump.

In the preferred technical scheme of the application, a flow guide pipe is also fixedly arranged on the inner side wall of the sleeve, and one end of the flow guide pipe is communicated with a suction pump.

The beneficial effects of the application are as follows:

according to the EJO drill bit easy to correct, the drilling angle of the drill bit body can be conveniently adjusted by matching the correction motor with the electric push rod, so that the correction is realized in time, the deviation value of drilling is reduced, and the EJO drill bit has a relatively high market application prospect; the adjusting component can automatically control the drill blade to rotate 180 degrees after the drill blade is worn, so that an unworn surface is contacted with a rock surface, the normal drilling process is ensured, and the service life of the drill bit body is prolonged; the spray pipe that sets up can spray water in to the drilling to cool down to the drill bit surface, extension drill bit's life, and suction pump can pump the muddy water in the drilling, avoids influencing drilling efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a EJO drill bit with easy deviation correction according to an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view taken in the direction B-B in FIG. 2;

fig. 4 is a top view of the bit body of fig. 1.

In the figure:

1. a sleeve; 2. a ball socket; 3. a sphere; 4. a transmission rod; 5. a cutterhead seat; 6. a bit body; 61. a bit housing; 62. a chip removal groove; 63. a drill blade; 64. a threaded rod; 7. a universal joint; 8. a deviation correcting mechanism; 81. a deviation rectifying motor; 82. a first rotating gear; 83. a ring gear; 84. an electric push rod; 85. a collar; 9. an adjustment assembly; 901. a cavity; 902. a through hole; 903. a rotating lever; 904. a threaded hole; 905. a second rotating gear; 906. a first rack; 907. an air bag; 908. a heat conduction rod; 909. a friction plate; 910. a limiting block; 911. a baffle; 912. a compression spring; 913. a sealing cushion layer; 10. a water spray pipe; 11. a high pressure nozzle; 12. a water pump; 13. a flow guiding pipe; 14. and a suction pump.

Detailed Description

The technical scheme of the application is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1-4, in an embodiment, an easy-to-rectify type EJO drill bit is provided, which comprises a sleeve 1, a ball socket 2, a ball 3, a transmission rod 4, a cutter seat 5, a drill bit body 6, a universal joint 7 and a rectify mechanism 8, wherein one end of the inner side of the sleeve 1 is fixedly provided with the ball socket 2, the ball socket 2 is in rolling connection with the ball 3, the ball 3 is fixedly provided with the transmission rod 4, one end of the transmission rod 4 is fixedly provided with the cutter seat 5, the drill bit body 6 is fixedly arranged on the cutter seat 5, the other end of the transmission rod 4 is fixedly connected with a power shaft through the universal joint 7, the rectify mechanism 8 is fixedly arranged in the sleeve 1, the rectify mechanism 8 comprises a rectify motor 81, a first rotary gear 82, a ring gear 83, an electric push rod 84 and a sleeve 85, the rectify motor 81 is fixedly arranged on the inner side wall of the sleeve 1, the first rotary gear 82 is fixedly arranged on the power output end of the rectify motor 81, the ring gear 83 is rotatably connected on the side wall of the sleeve 1, the first rotary gear 82 is meshed with the ring gear 83, the electric push rod 84 is fixedly arranged on the inner side wall, and the sleeve 85 is sleeved on the free end of the sleeve 85. In this embodiment, the ball socket 2 is of an annular structure, and the inner side surface of the ball socket 2 is an arc surface, and the ball 3 can roll in any direction in the ball socket 2, so that the direction of the transmission rod 4 can be adjusted at will, and the drill bit body 6 is driven to synchronously move, so that the purpose of correcting deviation is achieved. One end of the transmission rod 4 is fixed at the center of the cutterhead seat 5, and the drill bit body 6 is detachably arranged on the cutterhead seat 5 through a fastening bolt, so that a worker can conveniently maintain and replace the drill bit body. The universal joint 7 can realize variable-angle power transmission, so that the transmission rod 4 can rotate at a large angle without being limited by the size of the sleeve 1. The deviation correcting mechanism 8 is used for adjusting the drilling angle of the drill bit body 6, wherein the deviation correcting motor 81 is used for driving the first rotating gear 82 to rotate, the inner side of the sleeve 1 is also provided with an annular groove, the annular gear 83 is an inner gear, and the annular gear 83 can rotate in the annular groove; the electric push rod 84 is of a telescopic structure, and the electric push rod 84 can drive the lantern ring 85 to move, so that the transmission rod 4 deflects.

Specifically, the drill bit body 6 includes a drill bit casing 61 and drill teeth, a chip groove 62 is formed in a side surface of the drill bit casing 61, more than two drill teeth are uniformly and fixedly arranged on an inner side of the chip groove 62, the drill teeth include a drill blade 63 and a threaded rod 64, the drill blade 63 is fixedly arranged at one end of the threaded rod 64, and the other end of the threaded rod 64 is in threaded connection with the drill bit casing 61. In this embodiment, the drill casing 61 has a frustum structure, three junk slots 62 are provided, and the junk slots 62 are uniformly provided on the side wall of the drill casing 61 for discharging crushed stone dust (or soil) to prevent the drill body 6 from being jammed. The top of the drill blade 63 protrudes out of the junk slots 62 and contacts the rock face (or soil layer) to break up the rock during rotation. The threaded rod 64 is rotatably connected to the drill casing 61, so that the drill blade 63 is conveniently replaced when damaged, the whole scrapping of the drill body 6 is avoided, and the construction cost is reduced.

Specifically, the material of the drill blade 63 is cemented carbide, and the drill blade 63 has a cylindrical structure. In this embodiment, the cemented carbide is an alloy material made of a hard compound of refractory metal and a binder metal by a powder metallurgy process, and has a series of excellent properties such as high hardness, wear resistance, better strength and toughness, heat resistance, corrosion resistance, etc., which helps to prolong the service life of the bit body 6.

Specifically, an adjusting component 9 is fixedly arranged on the drill bit housing 61, the adjusting component 9 comprises a rotating rod 903, a second rotating gear 905, a first rack 906, an air bag 907, a heat conducting rod 908 and a friction plate 909, a cavity 901 is formed in the drill bit housing 61, the cavity 901 is communicated with the outside through a through hole 902, the rotating rod 903 is rotationally connected with the through hole 902, a threaded hole 904 is formed in one end of the rotating rod 903, the threaded rod 64 is in threaded connection with the threaded hole 904, a second rotating gear 905 is fixedly arranged at the other end of the rotating rod 903, the first rack 906 is slidably connected to the bottom of the cavity 901, the first rack 906 is meshed with the second rotating gear 905, the friction plate 909 is fixedly arranged on the outer side wall of the drill bit housing 61, one end of the heat conducting rod 908 is fixedly connected with the friction plate 909, the other end of the heat conducting rod 908 is fixedly connected with the air bag 907 arranged in the cavity 901, and the air bag 907 is fixedly connected with the first rack 906. In this embodiment, through setting up adjusting part 9, can drive its rotation 180 when the one side of drill bit 63 is impaired for undamaged one side and rock face contact, thereby continue to creep into, help prolonging the life of equipment. Wherein, a cavity 901 is arranged between two adjacent junk slots 62, more than two through holes 902 are arranged, and the junk slots 62 are communicated with the cavity 901 through the through holes 902; the second rotating gear 905 is disposed in the cavity 901, and one end of the rotating rod 903 is rotatably connected with the second rotating gear 905; the first rack 906 can slide at the bottom of the cavity 901, so as to drive the second rotating gear 905 to rotate; the balloon 907 is filled with gas, which can expand the balloon 907 when heated; the friction plate 909 is made of a wear resistant material, and friction of the friction plate 909 with the rock face generates heat and transfers the heat into the air bag 907 through the heat conductive rod 908.

Specifically, a baffle plate 911 is arranged above the second rotating gear 905, the baffle plate 911 is connected to the top wall of the cavity 901 through a compression spring 912, an air bag 907 can be abutted with the baffle plate 911, a limiting block 910 is arranged at the bottom of the baffle plate 911, and the limiting block 910 and the second rotating gear 905 can be clamped. In this embodiment, the baffle 911 is disposed below the air bag 907, and the air bag 907 can push the baffle 911 to slide upwards when expanding; the limiting block 910 can be clamped with the tooth slot of the second rotating gear 905, so that the second rotating gear 905 is fixed, and the drill blade 63 is prevented from moving.

Specifically, a sealing pad 913 is provided in the through hole 902. In this embodiment, by providing the sealing cushion layer 913, it is possible to avoid the situation where muddy water permeates into the through hole 902, causing difficulty in rotation of the rotation lever 903.

Specifically, a water spraying pipe 10 is fixedly arranged on the inner wall of the sleeve 1, a high-pressure spray head 11 is fixedly arranged at one end of the water spraying pipe 10, and one end of the water spraying pipe 10 is connected with a water pump 12. In this embodiment, by providing the water spray pipe 10, water can be sprayed into the drill hole, so that the surface of the drill blade 63 can be cooled, and the purpose of dust fall can be achieved.

Specifically, the inner side wall of the sleeve 1 is also fixedly provided with a flow guide pipe 13, and one end of the flow guide pipe 13 is communicated with a suction pump 14. In this embodiment, through setting up honeycomb duct 13, can pump the muddy water in the drilling, and then reduce the impurity in the drilling, improve drilling efficiency.

Working principle:

during operation, the power shaft drives the transmission rod 4 to rotate through the universal joint 7, the transmission rod 4 rotates to drive the drill bit body 6 to rotate, so that drilling operation is performed, then the water pump 12 is started, water is sprayed to the drill bit body 6 through the water spray pipe 10, the surface of the drill blade 63 can be cooled, the abrasion speed is slowed down, and meanwhile, the suction pump 14 can pump out muddy water in a drilled hole through the guide pipe 13, so that the influence on drilling efficiency is avoided; when the drilling is askew, the deviation rectifying motor 81 is controlled to start, the deviation rectifying motor 81 drives the first rotating gear 82 to rotate, the first rotating gear 82 rotates to drive the ring gear 83 to rotate, so that the electric push rod 84 is driven to synchronously rotate, and meanwhile, the electric push rod 84 stretches to drive the lantern ring 85 to deviate from the center, so that the transmission rod 4 deflects by a certain angle, and the rapid deviation rectifying function is realized; when the face of the drill blade 63 near the rock face is worn, the rock face is gradually contacted with the friction plate 909, so that friction heat is generated, the heat conduction rod 908 transmits heat to the air bag 907, the air bag 907 is inflated, the baffle 911 is jacked up firstly by the inflation of the air bag 907, the limiting block 910 is disengaged from the second rotating gear 905, the air bag 907 is continuously inflated at the moment to drive the first rack 906 to slide, the first rack 906 slides to drive the second rotating gear 905 to rotate, and then the rotating rod 903 is driven to synchronously rotate, so that the drill blade 63 rotates 180 degrees, the face which is not worn is aligned with the grinding, and therefore the service life of the drill bit body 6 is prolonged, and the construction efficiency is improved.

While the application has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the application. The application is not to be limited by the specific embodiments disclosed herein, but rather, embodiments falling within the scope of the appended claims are intended to be embraced by the application.

Claims

1. An easy rectifying EJO drill bit, which is characterized in that: comprises a sleeve (1), a ball socket (2), a ball body (3), a transmission rod (4), a cutter disc seat (5), a drill bit body (6), a universal joint (7) and a deviation rectifying mechanism (8), wherein the ball socket (2) is fixedly arranged at one end of the inner side of the sleeve (1), the ball body (3) is connected with the ball body (3) in a rolling way, the transmission rod (4) is fixedly arranged on the ball socket (5), one end of the transmission rod (4) is fixedly arranged on the cutter disc seat (5), the other end of the transmission rod (4) is fixedly connected with a power shaft through the universal joint (7), the deviation rectifying mechanism (8) is fixedly arranged in the sleeve (1), the deviation rectifying mechanism (8) comprises a deviation rectifying motor (81), a first rotating gear (82), a ring gear (83), an electric push rod (84) and a lantern ring (85), the first rotating gear (82) is fixedly arranged on the inner side wall of the sleeve (1), the power output end of the deviation rectifying motor (81), the ring gear (83) is rotationally connected with the side wall of the sleeve (1), the first rotating gear (82) and the ring gear (83) is meshed with the electric push rod (84) in a mutual manner, and the lantern ring (85) is sleeved on the transmission rod (4).

2. The easy-to-correct EJO drill bit according to claim 1, wherein: the drill bit body (6) comprises a drill bit shell (61) and drill teeth, chip grooves (62) are formed in the side face of the drill bit shell (61), more than two drill teeth are uniformly and fixedly arranged on the inner side of each chip groove (62), each drill tooth comprises a drill blade (63) and a threaded rod (64), each drill blade (63) is fixedly arranged at one end of each threaded rod (64), and the other ends of the threaded rods (64) are connected with the drill bit shell (61) in a threaded mode.

3. The easy-to-correct EJO drill bit according to claim 2, wherein: the drill blade (63) is made of hard alloy, and the drill blade (63) is of a cylindrical structure.

4. The easy-to-correct EJO drill bit according to claim 2, wherein: the utility model provides a drill bit casing (61) is last to have set firmly adjusting element (9), adjusting element (9) including dwang (903), second rotation gear (905), first rack (906), gasbag (907), heat conduction pole (908) and friction plate (909), cavity (901) have been seted up in drill bit casing (61), cavity (901) are in external intercommunication through-hole (902), through-hole (902) internal rotation is connected with dwang (903), threaded hole (904) have been seted up to dwang (903) one end, just threaded rod (64) and threaded hole (904) threaded connection, and second rotation gear (905) have been set firmly to dwang (903) other end, first rack (906) sliding connection is in cavity (901) bottom, and first rack (906) and second rotation gear (905) intermeshing, friction plate (909) set firmly on drill bit casing (61) lateral wall, heat conduction pole (908) one end and friction plate (909) fixed connection, the gasbag (907) other end and setting up in cavity (901) fixed connection, and gasbag (907) and first rack (907) fixed connection.

5. The easy-to-correct EJO drill bit of claim 4, further comprising: the second rotation gear (905) top is provided with baffle (911), and baffle (911) are connected to through compression spring (912) cavity (901) roof, just gasbag (907) and baffle (911) can the butt, and baffle (911) bottom is provided with stopper (910), stopper (910) and second rotation gear (905) can the joint.

6. The easy-to-correct EJO drill bit of claim 4, further comprising: a sealing cushion layer (913) is arranged in the through hole (902).

7. The easy-to-correct EJO drill bit according to claim 1, wherein: a water spraying pipe (10) is fixedly arranged on the inner wall of the sleeve (1), a high-pressure spray head (11) is fixedly arranged at one end of the water spraying pipe (10), and one end of the water spraying pipe (10) is connected with a water pump (12).

8. The easy-to-correct EJO drill bit of claim 7, wherein: a flow guide pipe (13) is further fixedly arranged on the inner side wall of the sleeve (1), and one end of the flow guide pipe (13) is communicated with a suction pump (14).