Drilling tool water hole dredging device and using method thereof

Abstract

The invention relates to a drilling tool water hole dredging device which comprises a drill bit, a barrel, a rolling mechanism and a connector. One end of the drill bit is connected with one end of the barrel, and a plurality of water outlets are formed in the drill bit; the rolling mechanism is arranged in the middle of the barrel, a water inlet is further formed in the barrel, and a pipeline communicated with the water inlet and the water outlet is arranged in the barrel; the other end of the cylinder body is connected with the connector; and the rolling mechanism is used for supporting the barrel in the drilling tool water holes, so that the barrel is suitable for the drilling tool water holes with different inner diameters. According to the dredging device designed by the invention, the water hole of the drilling tool can be cleaned, so that the drilling tool can be repeatedly used, the scrapping of the drilling tool is avoided, and the re-purchasing cost of the drilling tool is greatly reduced. The dredging device is matched with a drilling machine, a fixed platform and a high-pressure water pump to ensure that the inner wall of the drilling tool is not seriously damaged and residues are avoided. A rolling mechanism is arranged on the dredging device, and the dredging device is suitable for cleaning drilling tools with different inner diameters.

Description

Technical Field

[0001] The present invention belongs to the technical field of drill tool cleaning, and particularly relates to a drill tool water eye dredging device. Background Art

[0002] Well cementing requires the use of drill tool water eyes for construction operations. Due to reasons such as poor control of cement slurry circulation and cement slurry thickening time, the drill tool water eyes may become blocked. At present, there is no relatively authoritative research and conclusion on the dredging and cleaning treatment of drill tool water eyes at home and abroad. Most enterprises only decommission or scrap the drill tools with blocked water eyes. Summary of the Invention

[0003] The purpose of the present invention is to provide a drill tool water eye dredging device to solve the technical problems raised in the background art.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A drill tool water eye dredging device includes: a drill bit, a cylinder body, a rolling mechanism, and a connector; one end of the drill bit is connected to one end of the cylinder body, and it is provided with a plurality of water outlets; the rolling mechanism is arranged in the middle of the cylinder body, and the cylinder body is also provided with a water inlet and a pipeline inside that is communicated with the water inlet and the water outlets; the other end of the cylinder body is connected to the connector; the rolling mechanism is used to support the cylinder body inside the drill tool water eye, so that the cylinder body can adapt to drill tool water eyes with different inner diameters.

[0006] As a further improvement of the present invention, the rolling mechanism includes a spring and a rolling head; the spring is arranged along the radial direction of the cylinder body, with one end connected to the cylinder body and the other end connected to the bottom of the rolling head.

[0007] As a further improvement of the present invention, the upper part of the cross-section of the rolling head is an isosceles trapezoid with a narrower top and a wider bottom.

[0008] As a further improvement of the present invention, the Rockwell hardness of the material used to make the rolling head is less than 40.

[0009] As a further improvement of the present invention, 6 water outlets are provided.

[0010] As a further improvement of the present invention, the connector is provided with a trapezoidal external thread.

[0011] The usage method of the drill tool water eye dredging device as described in any one of the above items includes the following steps:

[0012] Step 1: Place the drill tool water eye to be dredged on a fixed platform and lock it through a locking device;

[0013] Step 2: Threadedly connect the connector of the dredging device to the drill rig. Align the dredging device with the drill tool water eye, and connect the water inlet on the dredging device to the water tank.

[0014] Step 3: Start the drill bit to drive the dredging device to rotate. At the same time, start the hydraulic cylinder to drive the drill rig and the dredging device to move towards the direction of the drill tool water eye until the drill bit of the dredging device contacts the drill tool water eye. Then start the high-pressure water pump connected to the water tank. The drill bit advances in the drill tool water eye to drill and cut the solidified cement slurry in the drill tool water eye, and the high-pressure water flow sprays out from the water outlet to wash the inner wall of the drill tool water eye.

[0015] Step 4: The used water flow flows into the filter through the pipeline, and after filtration, it flows back into the water tank again to complete the recycling of water.

[0016] As a further improvement of the present invention, a control console is provided on the fixed platform, and the staff operates the control console to control the opening and closing of the drill rig, the hydraulic cylinder, and the high-pressure water pump.

[0017] The beneficial effects of adopting the above technical solutions are as follows:

[0018] The present invention designs a dredging device that can clean the drill tool water eye, enabling the drill tool to be reused and avoiding the scrapping of the drill tool, greatly reducing the re-purchase cost of the drill tool. The dredging device is used in cooperation with the drill rig, the fixed platform, and the high-pressure water pump. The drill bit advances in the drill tool to drill and cut the solidified cement slurry in the drill tool, and the extruder squeezes and removes the remaining solidified cement slurry on the inner wall of the drill tool. The high-pressure water flow sprays out from the water outlet to wash the inner wall of the drill tool, ensuring that there is no serious damage and no residue on the inner wall of the drill tool. A rolling mechanism is provided on the dredging device to enable the cylinder to have a variable diameter function, suitable for cleaning drill tools with different inner diameters. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present invention;

[0020] Figure 2 It is a schematic structural diagram when the present invention is in use;

[0021] Explanation of the marks in the figure: 1 drill bit, 2 cylinder, 3 connector, 4 water outlet, 5 water inlet, 6 spring, 7 rolling head, 8 fixed platform, 9 drill rig, 10 high-pressure water pump, 11 control console, 12 locking device, 13 drill tool. Detailed Embodiment

[0022] In order to better understand the purpose, structure, and function of the present invention, the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0023] As Figure 1A drill tool water eye dredging device as shown, which includes: a drill bit 1, a cylinder 2, a rolling mechanism, and a connector 3. The drill bit 1 is made of alloy material, has high hardness, and is provided with a plurality of blades at the front end for cutting. One end of the drill bit 1 is connected to one end of the cylinder 2, and the connection method can be selected as integral molding to enhance the connection stability between the drill bit 1 and the cylinder 2; a plurality of water outlets 4 are provided on the drill bit 1. In this embodiment, 6 water outlets 4 are provided and are in a spiral shape for spraying high-pressure water flow.

[0024] The rolling mechanism is provided in the middle of the cylinder 2. The rolling mechanism is used to support the cylinder 2 inside the drill tool 13 so that the cylinder 2 can adapt to drill tools 13 with different inner diameters. In this embodiment, the rolling mechanism includes two springs 6 and a rolling head 7; the springs 6 are arranged along the radial direction of the cylinder 2, one end is connected to the cylinder 2, and the other end is connected to the bottom of the rolling head 7. The upper part of the cross-section of the rolling head 7 is an isosceles trapezoid with a narrow upper part and a wide lower part. When in use, the upper part of the rolling head 7 contacts the inner wall of the drill tool 13. The Rockwell hardness of the material used for the rolling head 7 is less than 40, and the pressure acting on the inner wall of the drill tool 13 is small and will not damage its coating. Since the rolling head 7 and the spring 6 are provided in the middle of the cylinder 2, when the cylinder 2 is located in the drill tool 13, under the action of the spring 6, the top of the rolling head 7 contacts the inner wall of the drill tool 13, and thus it can be used for cleaning drill tools 13 with different inner diameters; specifically in use, at least one rolling mechanism is provided.

[0025] An inlet 5 is also provided on the cylinder 2, and a pipeline communicating with the inlet 5 and the water outlets 4 is provided inside. The inlet 5 is connected to a high-pressure water pump 10, and water is supplied to the water outlets 4 through the pipeline, so that the water outlets 4 spray high-pressure water flow to wash the water eyes of the drill tool. The other end of the cylinder 2 is connected to the connector 3. The connector 3 is provided with a trapezoidal external thread for connecting the drill pipe, so that the drill bit 1 can withstand the cutting force and impact force.

[0026] As Figure 2 shown in the use method of the drill tool water eye dredging device, which is characterized in that: it includes the following steps:

[0027] Step 1: Place the drill tool 13 to be dredged on the fixed platform 8 and lock it through the locking device 12. Among them, the fixed platform 8 adopts a horizontal machining mode, and the whole machine has the characteristics of high strength, stable operation, and fast machining efficiency. The locking device 12 can be set in the mode of cooperation between a fixed pipe and a jackscrew. The drill tool 13 passes through the fixed pipe, and the drill tool 13 is tightened by using the jackscrew. This technology is the prior art and will not be specifically described here.

[0028] Step 2: Threadedly connect the connector 3 of the dredging device to the drill rig 9. The dredging device corresponds to the drill tool water eye, and the water inlet 5 on the dredging device is connected to the water tank. The drill rig 9 uses a model with a power ≥ 5 kw and can break rocks with a hardness ≤ F10; the water tank volume ≥ 2 m 3 .

[0029] Step 3: The drill bit 1 starts to drive the dredging device to rotate. At the same time, the hydraulic cylinder starts to drive the squeezer and the drill rig 9 to move in the direction of the drill tool water eye. The drilling speed of the drill rig 9 ≥ 0.3 m / min; until the drill bit 1 of the dredging device contacts the drill tool water eye, start the high-pressure water pump 10 connected to the water tank. The high-pressure water pump 10 provides a high-pressure water flow of 0.8 Mpa to clean and dredge the inner wall of the drill tool water eye; the drill bit 1 advances in the drill tool 13 to drill and cut the solidified cement slurry in the drill tool water eye. The squeezer squeezes and removes the remaining solidified cement slurry on the inner wall of the drill tool 13, and the water outlet 4 sprays a high-pressure water flow to wash the inner wall of the drill tool 13 to ensure that there is no serious damage and no residue on the inner wall of the drill tool 13.

[0030] Step 4: The used water flows into the filter through the pipeline and then flows back into the water tank after filtration to complete the recycling of water.

[0031] In addition, in this embodiment, a control console 11 is provided on the fixed platform 8. The staff operates the control console 11 to control the opening and closing of the drill rig 9, the hydraulic cylinder, and the high-pressure water pump 10. The control console 11 is installed at a convenient operation position with reasonable wiring layout and firm fixation.

[0032] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A drill tool water eye dredging device, characterized in that: It includes: a drill bit (1), a cylinder body (2), a rolling mechanism, and a connector (3); one end of the drill bit (1) is connected to one end of the cylinder body (2), and a plurality of water outlets (4) are provided thereon; the rolling mechanism is provided in the middle of the cylinder body (2), and a water inlet (5) is further provided on the cylinder body (2), and a pipeline communicating with the water inlet (5) and the water outlets (4) is provided inside; the other end of the cylinder body (2) is connected to the connector (3); the rolling mechanism is used to support the cylinder body (2) in the drill tool (13) so that the cylinder body (2) adapts to drill tools (13) with different inner diameters.

2. The drill tool water eye dredging device according to claim 1, characterized in that: The rolling mechanism includes a spring (6) and a rolling head (7); the spring (6) is arranged along the radial direction of the cylinder body (2), one end is connected to the cylinder body (2), and the other end is connected to the bottom of the rolling head (7).

3. The drill tool water eye dredging device according to claim 2, characterized in that: The upper part of the cross section of the rolling head (7) is an isosceles trapezoid with a narrow upper part and a wide lower part.

4. The drill tool water eye dredging device according to claim 2, wherein: The manufacturing material of the rolling head (7) has a Rockwell hardness of less than 40.

5. The drill tool water eye dredging device according to claim 1, wherein: Six water outlets (4) are provided.

6. The drill tool water eye dredging device according to claim 1, characterized in that: The connector (3) is provided with a trapezoidal external thread.

7. The usage method of the drill tool water eye dredging device according to any one of claims 1-6, characterized in that: It includes the following steps: Step 1: Place the drill tool (13) to be dredged on the fixed platform (8) and lock it through the locking device (12); Step 2: Thread-connect the connector (3) of the dredging device to the drilling rig (9), align the dredging device with the drill tool water eye, and connect the water inlet (5) on the dredging device to the water tank; Step 3: Start the drill bit (1) to drive the dredging device to rotate. At the same time, start the hydraulic cylinder to drive the extruder and the drilling rig (9) to move towards the direction of the drill tool water eye until the drill bit (1) of the dredging device contacts the drill tool water eye, and start the high-pressure water pump (10) connected to the water tank; the drill bit (1) advances in the drill tool (13) to drill the solidified cement slurry in the drill tool water eye, the extruder squeezes to remove the remaining solidified cement slurry on the inner wall of the drill tool (13), and the water outlets (4) spray high-pressure water flow to wash the inner wall of the drill tool water eye; Step 4: The used water flows into the filter through the pipeline, and after being filtered, it flows back into the water tank again to complete the reuse of water.

8. The usage method of a drill tool water eye dredging device according to claim 7, characterized in that: A control console (11) is provided on the fixed platform (8), and the staff operates the control console (11) to control the opening and closing of the drilling rig (9), the hydraulic cylinder, and the high-pressure water pump (10).

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