CN219993614U

CN219993614U - Submerged reverse circulation drilling machine

Info

Publication number: CN219993614U
Application number: CN202321081456.6U
Authority: CN
Inventors: 李洪民
Original assignee: Hebei Fengsu Construction Machinery Co ltd
Current assignee: Hebei Fengsu Construction Machinery Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-11-10
Anticipated expiration: 2033-05-08

Abstract

The utility model discloses a submerged reverse circulation drilling machine, which is applied to the field of development of circulation drilling machines and comprises a power transmission unit and a mud conveying unit fixedly arranged in the power transmission unit, wherein the power transmission unit comprises a driving unit, a transmission unit connected with the driving unit and a drill rod connected with the transmission unit, and the mud conveying unit comprises a bottom mud pump, a top mud pump connected with the bottom mud pump through a conveying pipe and a discharge pipe connected with an outlet of the top mud pump; the utility model has compact structure and reasonable design, the power transmission unit and the mud conveying unit are arranged separately, the power transmission unit transmits power to the drill rod through meshing transmission in the working process, mud generated in the drilling process of the drill rod is pumped to the ground from the inside of the drill rod under the action of the mud conveying unit, and the stability of equipment in the working process is high, the practicability is good and the service life is long.

Description

Submerged reverse circulation drilling machine

Technical Field

The utility model relates to the field of development of circulation drilling machines, in particular to a submerged reverse circulation drilling machine.

Background

The reverse circulation engineering driller mainly comprises a drilling system and a slurry conveying system, and is divided into two main types according to a slurry conveying mode, wherein one type is formed by separating the drilling system from a slurry pump and a water injection pump, and the other type is formed by integrating the drilling system with the slurry pump and a vacuum pump.

In the two structural forms, the installation position of the slurry pump is positioned above the slurry liquid level in the well and is exposed to the air, so that the evacuation phenomenon before the operation of the slurry pump exists, the drilling progress is influenced, the problem of difficult slurry suction can occur when the slurry pump drills to a certain depth, and the defect caused by the installation position of the slurry pump in the reverse circulation drilling machine becomes a main factor for influencing and restricting the drilling depth and the working efficiency of the reverse circulation drilling machine.

Both the utility model patent to grant publication number CN100494614C and the utility model patent to grant publication number CN 215520810U are improved on this. The mud pumps are submerged below the mud liquid level in the well, and the air is blocked by the mud, so that the problem of emptying before the operation of the mud pumps is solved, the trouble of repeated emptying treatment is avoided when a drill rod is added, and the suction stroke of drilling is improved, and the drilling efficiency is also improved.

The two patents have the following characteristics in the working process: the submerged mud pump rotates with the hollow forked shaft or the diversion side pipe that delivers the mud, and then discharges the mud through the discharge pipe. In the patent of the utility model with the issued publication number of CN100494614C, in the embodiment 1, a slurry pump motor is powered by a collecting ring, in the power supply process, the matching of an electric brush and a shell is accurate, and due to the complex drilling geology, the drilling depth is deepened, the torque is increased, the poor contact between a carbon brush and the surface of the collecting ring is caused, and electric leakage and power failure are easy to occur, so that accidents are caused; in embodiment 2, the output shaft of the slurry pump motor passes through the hollow fork-shaped shaft, so that the trafficability of sand and stone in the hollow fork-shaped shaft is affected, and the normal use of the device is affected. In the patent of the utility model of the issued publication No. CN 215520810U, a motor power supply system of the bottom slurry pump through a collecting ring is changed into a rotary joint oil supply system, when a gearbox drives a drill rod to rotate, hydraulic oil is conveyed through a pipeline closed channel to power the bottom slurry pump as the rotary joint does not rotate, so that the bottom slurry pump works, the tightness requirement of the rotary joint is high, the drilling geology is complex, the drilling depth is deepened, the torque is increased, and oil leakage phenomenon can occur in extremely short time, so that the device cannot be used.

To increase the reliability and stability of the operation of the drilling machine, improvements are necessary to address the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a submerged reverse circulation drilling machine, which is characterized in that a slurry conveying unit is arranged in a power transmission unit, the structure is compact, the design is reasonable, the stability of equipment in the working process is high, and the practicability is good.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model comprises a power transmission unit and a mud conveying unit fixedly arranged in the power transmission unit, wherein the power transmission unit comprises a driving unit, a transmission unit connected with the driving unit and a drill rod connected with the transmission unit, the mud conveying unit comprises a bottom mud pump, a top mud pump connected with the bottom mud pump through a conveying pipe and a discharge pipe connected with an outlet of the top mud pump, and the top mud pump is fixedly arranged above a gearbox.

Further, the transmission unit comprises a slewing bearing arranged in the gearbox, a hollow shaft meshed with the slewing bearing and a torsion transmission unit connected with the hollow shaft, and the driving unit is connected with the slewing bearing through a power input shaft.

Further, the torsion transmission unit comprises a torsion rotating rod, a torsion rotating cylinder and a torsion rotating disc, one end of the torsion rotating rod is connected with the hollow shaft, the other end of the torsion rotating rod is connected with the torsion rotating cylinder, the bottom of the torsion rotating cylinder is provided with the torsion rotating disc fixed to the torsion rotating cylinder, and the torsion rotating disc is in threaded connection with the drill rod.

Further, a bottom slurry pump is arranged in the torsion rotary drum, the bottom slurry pump is inserted into the torsion rotary table through a water inlet pipe, and a sealing sleeve is arranged between the torsion rotary table and the water inlet pipe.

Further, the conveying pipe comprises a water outlet pipe and a fork-shaped water outlet pipe connected with the water outlet pipe, the water outlet pipe is connected with an inlet of the top slurry pump, and the fork-shaped water outlet pipe is connected with an outlet of the bottom slurry pump.

Further, the top slurry pump is fixed with the gearbox through the pump body support, the water outlet pipe penetrates through the slewing bearing and is connected with the forked water outlet pipe, the bottom slurry pump and the forked water outlet pipe are both arranged in the torsion rotary drum, and the water outlet pipe is arranged in the torsion rotary rod.

Further, the top mud pump is driven by a mud pump motor.

Further, the bottom slurry pump is fixed with the water inlet pipe through the bottom pump connecting body, the inlet of the bottom slurry pump is connected with the outlet of the water inlet pipe, and the inlet of the water inlet pipe is communicated with the outlet of the drill rod.

Further, the impeller in the bottom mud pump conveys mud at the inlet pipe to the fork-shaped outlet pipe.

Further, the bottom mud pump is driven by a bottom pump motor.

Due to the adoption of the technical scheme, the beneficial effects obtained by the utility model are as follows:

the utility model has simple structure and novel design, the power transmission unit and the mud conveying unit are arranged separately, and the mud conveying unit is arranged in the power transmission unit.

Moreover, the sealing performance of the whole device is low in requirement, the stability of the working process equipment is high, the practicability is good, the service life of the device is greatly prolonged, and the device has the popularization necessity.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the power transmission unit of the present utility model;

FIG. 3 is a schematic view of the construction of the slurry delivery unit of the present utility model;

fig. 4 is a schematic structural view of the connection of the torsion turntable and the water inlet pipe.

Wherein, 1, a driving unit; 2. a mud pump motor; 3. a top mud pump; 4. a gearbox; 5. a water outlet pipe; 6. a torque drum; 7. fork-shaped water outlet pipe; 8. a bottom mud pump; 9. a torque turntable; 10. a drill rod; 11. a power input shaft; 12. a slewing bearing; 13. a hollow shaft; 14. a pump body bracket; 15. a bottom pump motor; 16. an impeller; 17. a bottom pump connector; 18. a water inlet pipe; 19. sealing sleeve; 20. torsion bar.

Detailed Description

The utility model is further illustrated by the following examples:

the submerged reverse circulation drilling machine comprises a power transmission unit and a mud conveying unit fixedly arranged in the power transmission unit, wherein the power transmission unit transmits power to a drill rod 10 to finish rotation and drilling of the drill rod 10, and mud and sand generated in the drilling process of the drill rod 10 convey the mud to the ground from the center of the drill rod 10 under the action of the mud conveying unit.

In the working process, the power transmission unit is matched with the mud conveying unit together to finish drilling operation. The power transmission unit rotates, and transmits power to the drill rod 10 through meshed transmission, so that the transmission is reliable and the efficiency is high. The mud conveying unit is stable and does not need to rotate, and power required by rotation is omitted. Only the mud generated in the drilling process of the drill rod 10 is pumped to the ground under the action of the mud pump, so that the mud transmission function is realized, the mechanical sealing requirement is not high, the whole device is reliable in operation, high in stability and good in practicability.

As shown in fig. 2, the power transmission unit comprises a driving unit 1, a transmission unit connected with the driving unit 1 and a drill rod 10 connected with the transmission unit, wherein the transmission unit comprises a slewing bearing 12 arranged in a gearbox 4, a hollow shaft 13 meshed with the slewing bearing 12 and a torsion transmission unit connected with the hollow shaft 13, the torsion transmission unit is connected with the drill rod 10, the driving unit 1 can be a driving motor, a hydraulic motor or a hydraulic pump, and the driving unit 1 is connected with the slewing bearing 12 through a power input shaft 11. The driving unit 1 works, the power input shaft 11 rotates, the slewing bearing 12 connected with the power input shaft 11 rotates, the hollow shaft 13 meshed with the slewing bearing 12 rotates, the hollow shaft 10 drives the torsion transmission unit to rotate, and the torsion transmission unit drives the drill rod 10 to rotate to finish drilling of the drill rod 10.

As shown in fig. 2, the torque transmission unit comprises a torque rotating rod 20, a torque rotating cylinder 6 and a torque rotating disc 9, one end of the torque rotating rod 20 is connected with a hollow shaft 13, the other end of the torque rotating rod is connected with the torque rotating cylinder 6, the hollow shaft 13 is connected with the torque rotating cylinder 6 through the torque rotating rod 20, the bottom of the torque rotating cylinder 6 is provided with the torque rotating disc 9 fixed with the torque rotating cylinder 6, and the torque rotating disc 9 is fixed with a drill rod 10. In the power transmission process, the hollow shaft 13 drives the torsion rotating rod 20 to rotate, the torsion rotating rod 20 drives the torsion rotating cylinder 6 to rotate, the torsion rotating cylinder 6 drives the torsion rotating plate 9 to rotate, the torsion rotating plate 9 is connected with the drill rod 10 through threads, and the drill rod 10 rotates along with the rotation, so that drilling of a drilled hole is realized. It can be seen that the power transmission unit described above is driven by power during operation to effect drilling of the drill pipe 10.

As shown in fig. 3, the mud conveying unit comprises a bottom mud pump 8, a water outlet pipe 5 connected with the outlet of the bottom mud pump 8, a top mud pump 3 connected with the outlet of the water outlet pipe 5, and a discharge pipe connected with the outlet of the top mud pump 3, wherein the inlet of the bottom mud pump 8 is connected with the outlet of a water inlet pipe 18, the inlet of the water inlet pipe 18 is communicated with a drill pipe 10, as shown in fig. 4, mud generated in the drilling process of the drill pipe 10 is pumped from the bottom of the drill pipe 10 to the top of the drill pipe 10 under the action of the bottom mud pump 8 and conveyed to the inlet of the bottom mud pump 8 through the water inlet pipe 18 under the action of an impeller 16, and the mud at the water inlet pipe 18 is conveyed to the fork-shaped water outlet pipe 7 under the action of the impeller 16. And greatly reduces the mechanical sealing performance requirement of the bottom mud pump 8, prolongs the service life and drilling depth of the bottom mud pump, and has good working reliability.

The top mud pump 3 is arranged to pump mud from the bottom mud pump 8 to the top mud pump 3 above the gearbox 4. The outlet pipe 5 connected to the inlet of the top mud pump 3 passes through the slewing bearing 12 to be connected to the fork-shaped outlet pipe 7, and the fork-shaped outlet pipe 7 is connected to the outlet of the bottom mud pump 8. An impeller 16 in the bottom mud pump 8 conveys mud at an inlet pipe 18 to the forked outlet pipe 7. Under the action of the top slurry pump 3, slurry at the outlet of the bottom slurry pump 8 is conveyed to the inlet of the top slurry pump 3 through the fork-shaped water outlet pipe 7 and the water outlet pipe 5, and the slurry at the inlet is conveyed to the outlet of the top slurry pump 3 under the action of the impeller in the top slurry pump 3 and is discharged through the discharge pipe. In the working process, the bottom slurry pump 8, the fork-shaped water outlet pipe 7, the water outlet pipe 5 and the top slurry pump 3 are all fixed and only play a role in slurry transmission, so that the sealing performance of the slurry conveying unit is ensured. The working process is stable and reliable, and the practicability is good.

The bottom mud pump 8 and the top mud pump 3 have complementary functions, so that the suction stroke of the whole drilling machine is greatly improved, and the drilling depth of the drilling machine is improved.

As shown in fig. 1 and 3, the top slurry pump 3 is fixedly arranged above the gearbox 4, the top slurry pump 3 is driven by the slurry pump motor 2, the top slurry pump 3 is fixed with the gearbox 4 through a pump body bracket 14, the water outlet pipe 5 passes through a slewing bearing 12 in the gearbox 4, one end of the water outlet pipe 5 is connected with an inlet of the top slurry pump 3, and the other end of the water outlet pipe is connected with a fork-shaped water outlet pipe 7. The water outlet pipe 5 is arranged in the torsion rotating rod 20, and the bottom mud pump 8 connected with the fork-shaped water outlet pipe 7 and the fork-shaped water outlet pipe 7 are arranged in the torsion rotating cylinder 6, so that the structure is compact and the design is reasonable.

As shown in fig. 3, the bottom mud pump 8 is fixed to the water inlet pipe 18 through a bottom pump connector 17, the bottom mud pump 8 is driven by a bottom pump motor 15, and the bottom pump motor 15 and the bottom mud pump 8 are both disposed in the torsion drum 6. The bottom mud pump 8 may be driven by an electric motor, a hydraulic motor, or a hydraulic pump.

As shown in fig. 4, the bottom mud pump 8 is inserted into the torsion turntable 9 through the water inlet pipe 18 and supported by the torsion turntable 9, and a sealing sleeve 19 is arranged between the torsion turntable 9 and the water inlet pipe 18. In the working process, the mud conveying units such as the water inlet pipe 18, the bottom mud pump 8 and the like are fixed and only play a role in conveying mud, the transmission unit is rotated, and in the power transmission process, the torsion turntable 9 plays a role in supporting and positioning the water inlet pipe 18, so that the stability of equipment is ensured. The bottom slurry pump 8 always works under the liquid level, no leakage exists in the working process, and the requirement on the sealing sleeve 19 is not high, so that the whole device is good in sealing performance, high in working reliability, stable and practical, the strength of the pump is guaranteed, the influence of complex geology is avoided, and the device is high in stability and good in usability.

Finally, it should be noted that: the above examples are only illustrative for the clarity of the utility model and are not meant to be limiting in any way. Other variations or modifications of the above description will be apparent to those of ordinary skill in the art, and it is not intended to be exhaustive of all embodiments, and obvious variations or modifications of the utility model are intended to be within the scope of the utility model.

Claims

1. The utility model provides a submerged reverse circulation rig which characterized in that: including power transmission unit and fixed setting are in the inside mud delivery unit of power transmission unit, power transmission unit include drive unit (1), with drive unit (1) be connected drive unit and with drilling rod (10) that drive unit is connected, mud delivery unit include bottom slush pump (8), through the conveyer pipe with top slush pump (3) that bottom slush pump (8) are connected and with the outlet connection's of top slush pump (3 discharge tube, top slush pump (3) are fixed to be set up in the top of gearbox (4).

2. The submersible reverse circulation drilling machine according to claim 1, wherein: the transmission unit comprises a slewing bearing (12) arranged in the gearbox (4), a hollow shaft (13) meshed with the slewing bearing (12) and a torsion transmission unit connected with the hollow shaft (13), and the driving unit (1) is connected with the slewing bearing (12) through a power input shaft (11).

3. A submersible reverse circulation drilling machine according to claim 2, wherein: the torque transmission unit comprises a torque rotating rod (20), a torque rotating cylinder (6) and a torque rotating disc (9), one end of the torque rotating rod (20) is connected with a hollow shaft (13), the other end of the torque rotating rod is connected with the torque rotating cylinder (6), the torque rotating disc (9) fixed with the torque rotating cylinder (6) is arranged at the bottom of the torque rotating cylinder (6), and the torque rotating disc (9) is in threaded connection with a drill rod (10).

4. A submersible reverse circulation drilling machine according to claim 3, wherein: the torsion rotary drum (6) is internally provided with a bottom slurry pump (8), the bottom slurry pump (8) is inserted into the torsion rotary table (9) through a water inlet pipe (18), and a sealing sleeve (19) is arranged between the torsion rotary table (9) and the water inlet pipe (18).

5. The submersible reverse circulation drilling machine according to claim 1, wherein: the conveying pipe comprises a water outlet pipe (5) and a fork-shaped water outlet pipe (7) connected with the water outlet pipe (5), the water outlet pipe (5) is connected with an inlet of the top slurry pump (3), and the fork-shaped water outlet pipe (7) is connected with an outlet of the bottom slurry pump (8).

6. The submersible reverse circulation drilling machine according to claim 5, wherein: the top slurry pump (3) is fixed with the gearbox (4) through a pump body support (14), the water outlet pipe (5) penetrates through the slewing bearing (12) to be connected with the fork-shaped water outlet pipe (7), the bottom slurry pump (8) and the fork-shaped water outlet pipe (7) are both arranged in the torsion rotary drum (6), and the water outlet pipe (5) is arranged in the torsion rotary rod (20).

7. The submersible reverse circulation drilling machine according to claim 6, wherein: the top mud pump (3) is driven by a mud pump motor (2).

8. The submersible reverse circulation drilling machine according to claim 6, wherein: the bottom slurry pump (8) is fixed with the water inlet pipe (18) through the bottom pump connecting body (17), the inlet of the bottom slurry pump (8) is connected with the outlet of the water inlet pipe (18), and the inlet of the water inlet pipe (18) is communicated with the outlet of the drill rod (10).

9. The submersible reverse circulation drilling machine according to claim 8, wherein: an impeller (16) in the bottom mud pump (8) conveys mud at a water inlet pipe (18) to a fork-shaped water outlet pipe (7).

10. The submersible reverse circulation drilling machine according to claim 9, wherein: the bottom mud pump (8) is driven by a bottom pump motor (15).