Hole bottom slag removing device for rotary drilling rig

Abstract

The hole bottom slag removing device for the rotary drilling rig comprises a box body, a gear ring is embedded in the top of an inner cavity of the box body, the gear ring is arranged at the top of the inner cavity of the box body in a sliding mode, and a plurality of supporting shafts are rotatably connected between the top and the bottom of the inner cavity of the box body. Through the arrangement of the gear ring, when a drill bit enters the box body, a worker enables an insertion block of the drill bit to be aligned with a limiting block on the gear ring to be inserted, then the drill bit is started to rotate, the drill bit rotates to drive the gear ring to rotate, and the gear ring rotates to drive gears on the tops of the multiple supporting shafts to rotate; the drill bit cleaning device has the advantages that the drill bit cleaning device is provided with the supporting shaft, the supporting shaft rotates to drive the multiple cleaning brushes on the surface to rotate, the multiple cleaning brushes can sufficiently clean and brush the surface of the drill bit along with rotation of the drill bit, accordingly, adhered soil slag blocks are brushed off, the box is arranged, water is conveniently injected into the box, the drill bit can be cleaned to remove slag, and the drill bit cleaning device is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling rigs, in particular to a bottom-hole slag cleaning device for a rotary drilling rig. Background Technique

[0002] A rotary drilling rig is a construction machine suitable for hole-forming operations in building foundation projects. It is mainly suitable for construction in soil layers such as sandy soil, cohesive soil, and silty soil, and is widely used in various foundation construction such as cast-in-place piles, diaphragm walls, and foundation reinforcement.

[0003] Generally, it adopts a hydraulic crawler telescopic chassis, a self-lifting and foldable drill mast, a telescopic drill pipe, with automatic detection and adjustment of verticality, digital display of hole depth, etc. The whole machine is generally controlled by hydraulic pilot control and load sensing, with the characteristics of light and comfortable operation.

[0004] The existing patent publication number is CN214944166U, which discloses a bottom-hole slag cleaning device for a rotary drilling rig, including a main body, a guide sleeve and a spring. A funnel is installed inside the main body, a fixing ring is wrapped on the surface of the funnel, vibrators are connected to both sides of the fixing ring, guide columns are fixedly connected to the bottom of the vibrators, the guide columns are connected inside the guide sleeve, screws penetrate through the surface of the vibrators, and a connecting rod is fixedly connected to one side of the main body. For this bottom-hole slag cleaning device for a rotary drilling rig, the operator moves the guide column inside the guide sleeve to drive the vibrator to be installed inside the main body. Then, through the fitting structure formed by the guide column and the guide sleeve, the vibrator is stabilized inside the main body. Then, through the threaded connection structure formed by the screw and the vibrator and the main body, the vibrator is fixed, so that the vibrator drives the device to vibrate, thereby achieving the purpose of facilitating the cleaning of the muck.

[0005] After the existing rotary drilling rig drills the ground multiple times, a lot of muck that is difficult to clean will accumulate on its surface and inside. The existing vibrator cleans the surface of the drilling rig by vibration, and it is difficult to clean the surface of the drilling rig thoroughly. For this reason, we propose a bottom-hole slag cleaning device for a rotary drilling rig to solve the above-mentioned problems. Content of the Utility Model

[0006] The purpose of this part is to outline some aspects of the embodiments of the present utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part as well as in the abstract and the title of the utility model of the present application to avoid obscuring the purpose of this part, the abstract, and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present utility model.

[0007] Therefore, the purpose of the present utility model is to provide a bottom-hole slag cleaning device for a rotary drilling rig, which can solve the problem that after the existing rotary drilling rig drills the ground multiple times, a lot of difficult-to-clean soil slag will accumulate on its surface and inside, and the existing vibrating machine cleans the surface of the drilling rig through vibration, making it difficult to fully clean the surface of the drilling rig.

[0008] To solve the above technical problems, the present utility model provides a bottom-hole slag cleaning device for a rotary drilling rig, adopting the following technical solutions: It includes a box body, a gear ring is embedded at the top of the inner cavity of the box body, and the gear ring is slidably arranged at the top of the inner cavity of the box body. A plurality of support shafts are rotatably connected between the top and the bottom of the inner cavity of the box body, and each support shaft is equally angularly arranged outside the gear ring. A plurality of cleaning brushes are fixedly installed on the outside of each support shaft, a drill bit is arranged in the inner cavity of the box body, the cleaning brushes are attached to the outer wall of the drill bit, and a gear is fixedly installed at the top of each support shaft, and the gear meshes with the gear ring.

[0009] Optionally, a plurality of limiting blocks are equally angularly fixedly installed on the inner circumferential wall of the gear ring, each limiting block is concave, a plurality of insertion blocks are equally angularly fixedly installed on the outside of the drill bit, the insertion blocks are adapted to the limiting blocks, and the drill bit is inserted into the gear ring through the plurality of insertion blocks and the limiting blocks.

[0010] Optionally, a drainage groove is opened at the bottom of the inner cavity of the box body, and a water outlet pipe is fixedly installed at the bottom of the drainage groove, and a solenoid valve is fixedly installed on the outside of the water outlet pipe.

[0011] Optionally, a support frame is fixedly installed in the inner cavity of the box body, and the support frame is located directly above the drainage groove.

[0012] Optionally, a swirling turbine is fixedly installed on the top of the support frame, and the swirling turbine is located directly below the drill bit.

[0013] Optionally, a plurality of universal wheels with a self-locking function are movably arranged at the bottom of the box body, and a water inlet pipe is fixedly installed on the right side of the box body.

[0014] In summary, the present utility model has at least the following beneficial effects: 1. By setting the gear ring, when the drill bit enters the inside of the box body, the staff inserts the insertion block of the drill bit into the limiting block on the gear ring, and then starts the drill bit to rotate. The rotation of the drill bit drives the gear ring to rotate, and the rotation of the gear ring drives the gears at the tops of the plurality of support shafts to rotate, so that the support shafts rotate. The rotation of the support shafts drives the plurality of cleaning brushes on the surface to rotate. Thus, as the drill bit rotates, the plurality of cleaning brushes can fully clean the surface of the drill bit, so as to brush off the adhered soil slag blocks. By setting the box body, it is convenient to inject water into the box body, so that the drill bit can be washed to remove slag, and the practicability is strong.

[0015] 2. By setting up a support frame with a rotary turbine fixedly installed at the top of the support frame, when the drill bit rotates inside the box body, it drives the water source inside the box body to flow. By setting the rotary turbine, the water source can flow rapidly inside the box body, accelerating the water flow rate and improving the efficiency of slag cleaning on the surface of the drill bit. By setting the solenoid valve, after the staff opens the solenoid valve, the water with soil slag is discharged through the water outlet pipe, achieving the effect of accelerating the cleaning of the drill bit. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic top view of the overall structure of the present invention;

[0019] Figure 3 It is a schematic internal sectional view of the overall structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 Enlarged schematic view of part A in

[0021] Explanation of reference numerals: 1. Box body; 2. Gear ring; 3. Support shaft; 4. Cleaning brush; 5. Drill bit; 6. Gear; 7. Limit block; 8. Insert block; 9. Drainage groove; 10. Water outlet pipe; 11. Solenoid valve; 12. Support frame; 13. Rotary turbine; 14. Universal wheel; 15. Water inlet pipe. Detailed Description of the Specific Embodiment

[0022] The following will further elaborate on the present invention in conjunction with the Figures 1-4 drawings.

[0023] Embodiment 1. Referring to Figures 1-4 , in this embodiment, in order to solve the problem that after the existing rotary drilling rig drills the ground multiple times, a lot of difficult-to-clean soil slag will accumulate on its surface and inside, and the existing vibrator cleans the surface of the drilling rig through vibration, making it difficult to fully clean the surface of the drilling rig, the present invention discloses a bottom-hole slag cleaning device for a rotary drilling rig.

[0024] It includes a box body 1. A gear ring 2 is embedded at the top of the inner cavity of the box body 1, and the gear ring 2 is slidably arranged at the top of the inner cavity of the box body 1. A plurality of support shafts 3 are rotatably connected between the top and the bottom of the inner cavity of the box body 1, and each support shaft 3 is arranged equiangularly outside the gear ring 2. A plurality of cleaning brushes 4 are fixedly installed on the outside of each support shaft 3. A drill bit 5 is arranged in the inner cavity of the box body 1. The cleaning brushes 4 are attached to the outer wall of the drill bit 5. A gear 6 is fixedly installed at the top of each support shaft 3, and the gear 6 meshes with the gear ring 2. The rotation of the support shaft 3 drives the rotation of a plurality of cleaning brushes 4 on the surface. Thus, as the drill bit 5 rotates, the plurality of cleaning brushes 4 can fully clean the surface of the drill bit 5, and the adhered soil slag blocks can be brushed off.

[0025] A plurality of limiting blocks 7 are fixedly installed equiangularly on the inner circumferential wall of the gear ring 2. Each limiting block 7 is concave. A plurality of insertion blocks 8 are fixedly installed equiangularly on the outside of the drill bit 5. The insertion blocks 8 are adapted to the limiting blocks 7. The drill bit 5 is inserted into the gear ring 2 through the plurality of insertion blocks 8 and the limiting blocks 7. The staff aligns the insertion blocks 8 of the drill bit 5 with the limiting blocks 7 on the gear ring 2 and inserts them. Then, the drill bit 5 is started to rotate self - rotatably. The rotation of the drill bit 5 drives the rotation of the gear ring 2. Thus, by starting the rotation of the drill bit 5, the slag cleaning device can be started.

[0026] The specific working principle is as follows: By setting the gear ring 2, when the drill bit 5 enters the inside of the box body 1, the staff aligns the insertion blocks 8 of the drill bit 5 with the limiting blocks 7 on the gear ring 2 and inserts them. Then, the drill bit 5 is started to rotate self - rotatably. The rotation of the drill bit 5 drives the rotation of the gear ring 2. The rotation of the gear ring 2 drives the rotation of the gears 6 at the tops of the plurality of support shafts 3. Thus, the support shafts 3 rotate. The rotation of the support shafts 3 drives the rotation of a plurality of cleaning brushes 4 on the surface. Thus, as the drill bit 5 rotates, the plurality of cleaning brushes 4 can fully clean the surface of the drill bit 5, and the adhered soil slag blocks can be brushed off. By setting the box body 1, it is convenient to inject water into the box body 1, so as to achieve the effect of cleaning and removing slag from the drill bit 5.

[0027] Embodiment 2, referring to Figures 1-4 In this embodiment, in order to solve the problem of low slag cleaning efficiency on the surface of the existing drilling rig, based on the same concept as in the above - mentioned Embodiment 1, the hole - bottom slag cleaning device for a rotary drilling rig further includes:

[0028] A drainage groove 9 is opened at the bottom of the inner cavity of the box body 1, and a water outlet pipe 10 is fixedly installed at the bottom of the drainage groove 9. An electromagnetic valve 11 is fixedly installed on the outside of the water outlet pipe 10. After water and soil slag enter the drainage groove 9, they are discharged through the water outlet pipe 10 by opening the electromagnetic valve 11.

[0029] A support frame 12 is fixedly installed in the inner cavity of the box body 1, and the support frame 12 is located directly above the drainage groove 9.

[0030] A rotary turbine 13 is fixedly installed at the top of the support frame 12. The rotary turbine 13 is located directly below the drill bit 5. By setting the rotary turbine 13, the water source can flow rapidly inside the box body 1, accelerating the water flow rate and improving the efficiency of slag cleaning on the surface of the drill bit 5.

[0031] A plurality of universal wheels 14 with self-locking functions are movably arranged at the bottom of the box body 1, and a water inlet pipe 15 is fixedly installed on the right side of the box body 1. By setting the water inlet pipe 15, the staff inserts the water pipe into the water inlet pipe 15 in alignment, thereby injecting water into the box body 1. By setting the universal wheels 14, it is convenient for the staff to move on-site.

[0032] The specific working principle is as follows: By setting the support frame 12 and fixedly installing a rotary turbine 13 at the top of the support frame 12, when the drill bit 5 rotates inside the box body 1, it drives the water source inside the box body 1 to flow. By setting the rotary turbine 13, the water source can flow rapidly inside the box body 1, accelerating the water flow rate and improving the efficiency of slag cleaning on the surface of the drill bit 5. By setting the solenoid valve 11, after the staff opens the solenoid valve 11, the water with soil slag is discharged through the outlet pipe 10, achieving the effect of accelerating the cleaning of the drill bit 5.

[0033] The wiring diagram of the solenoid valve in the present utility model belongs to the common knowledge in the field. Its working principle is already known technology, and its model is selected according to actual use. Therefore, the control method and wiring layout of the solenoid valve will not be explained in detail.

[0034] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A bottom hole cleaning device for a rotary drilling rig, comprising a housing (1), characterized in that: A gear ring (2) is embedded in the top of the inner cavity of the box body (1), and the gear ring (2) is slidably arranged at the top of the inner cavity of the box body (1). A plurality of support shafts (3) are rotatably connected between the top and bottom of the inner cavity of the box body (1), and each of the support shafts (3) is arranged at an equal angle outside the gear ring (2). A plurality of cleaning brushes (4) are fixedly installed outside each of the support shafts (3). A drill bit (5) is provided in the inner cavity of the box body (1), and the cleaning brush (4) is attached to the outer wall of the drill bit (5). A gear (6) is fixedly installed at the top of each of the support shafts (3), and the gear (6) is meshed with the gear ring (2).

2. The bottom hole cleaning device for a rotary drilling rig according to claim 1, characterized in that: A plurality of limit blocks (7) are fixedly mounted at equal angles on the inner circumferential wall of the gear ring (2), each of the limit blocks (7) being concave; a plurality of insert blocks (8) are fixedly mounted at equal angles on the outside of the drill bit (5), the insert blocks (8) being compatible with the limit blocks (7); and the drill bit (5) is inserted into the inside of the gear ring (2) via the plurality of insert blocks (8) and the limit blocks (7).

3. The bottom hole cleaning device for a rotary drilling rig according to claim 1, characterized in that: A drainage groove (9) is provided at the bottom of the inner cavity of the box body (1), and a water outlet pipe (10) is fixedly installed at the bottom of the drainage groove (9), and a solenoid valve (11) is fixedly installed outside the water outlet pipe (10).

4. The bottom hole cleaning device for a rotary drilling rig according to claim 1, characterized in that: A support frame (12) is fixedly installed in the inner cavity of the box body (1), and the support frame (12) is located directly above the drainage groove (9).

5. The bottom hole cleaning device for a rotary drilling rig according to claim 4, characterized in that: A rotary turbine (13) is fixedly mounted on the top of the support frame (12), and the rotary turbine (13) is located directly below the drill bit (5).

6. The bottom hole cleaning device for a rotary drilling rig according to claim 1, characterized in that: A plurality of universal wheels (14) with a self-locking function are movably arranged at the bottom of the box body (1), and a water inlet pipe (15) is fixedly installed on the right side of the box body (1).

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