Drill bit positioning device for water diversion inclined shaft drilling

Abstract

The utility model provides a water diversion inclined shaft drilling bit positioning device which comprises two supports which are oppositely arranged side by side, and a bottom frame is arranged at the bottom of each support. The threaded rod is rotationally installed on the two supports, opposite threads are symmetrically arranged on the threaded rod, and the threaded rod is in threaded connection with two clamping blocks used for clamping a drill bit; the bottom block is provided with a sliding groove connected with the clamping blocks in a clamped mode, and the two clamping blocks are connected into the sliding groove in a sliding mode. The driving device is used for driving the bottom block to rotate around the threaded rod. The threaded rod drives the clamping blocks to move symmetrically, the arc-shaped groove design is combined, drill bit swing is compensated in real time in the hoisting process, and the clamping force uniformity is improved; the driving device can quickly complete angle adjustment of the bottom block, then the angle of the drill bit is adjusted, the positioning precision is improved, and compared with a traditional method, the drill bit adjusting and installing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of water diversion inclined well drilling technology, and in particular to a drill bit positioning device for water diversion inclined well drilling. Background Technology

[0002] Rock drilling equipment includes various drilling rigs, mainly hydraulic drilling rigs, top hammer drilling rigs, anchor drilling rigs, inclined shaft drilling rigs, and multi-functional drilling rigs. Among them, the inclined shaft drilling rig is designed for inclined shaft excavation and can drill holes at a predetermined angle; the multi-functional drilling rig can be equipped with different types of drilling tools and is suitable for a variety of drilling tasks, including but not limited to geological exploration, water well drilling, geothermal drilling, and inclined shaft excavation.

[0003] In the excavation of inclined shafts for water diversion, precise drill bit positioning is crucial for ensuring drilling efficiency and quality. When installing drill bits on rock drilling equipment such as inclined shaft drilling rigs and multi-functional drilling rigs, the connection holes between the drill bit and the equipment's drill rod must be precisely aligned to ensure the drilling angle meets design requirements. Traditional positioning devices primarily rely on manual operation. After the drill bit is hoisted to the installation position by a crane, operators must manually fine-tune the angle using tools such as crowbars and shims, while simple clamps are used for single-point fixation. This manual positioning method reveals significant limitations in the inclined environment of inclined shafts and fails to meet the demands of modern engineering for efficient and precise construction. Traditional positioning devices, which rely heavily on manual adjustment, present the following technical problems:

[0004] After the drill bit is hoisted to the installation position of the inclined shaft by a crane, it needs to be manually adjusted by prying with a crowbar or by padding with shims. A single alignment takes 2-3 hours, and the angle deviation often exceeds ±3°, which causes the connection hole between the installation rod and the drill bit to be misaligned. Repeated hoisting and correction are required, resulting in low hoisting and alignment efficiency.

[0005] During hoisting, the drill bit is easily affected by gravity and wind, causing it to sway. Traditional clamps use a single-point fixing method, which is not stable enough.

[0006] Adjusting the drill bit angle manually during high-altitude operations requires climbing to the installation position, which carries a risk of falling. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a positioning device for a water diversion deviated well drilling bit. To achieve the above objectives, this utility model adopts the following technical solution:

[0008] A drilling bit positioning device for a water diversion deviated well includes:

[0009] The bracket has two opposing side-by-side structures, each with a base frame at its bottom.

[0010] The threaded rod is rotatably mounted on two supports. The threaded rod has symmetrically arranged opposite threads, and two clamping blocks for clamping the drill bit are threadedly connected to the threaded rod.

[0011] The bottom block has a groove that engages with the clamping block, and the two clamping blocks are slidably connected in the groove;

[0012] A drive unit is used to drive the base block to rotate around the threaded rod.

[0013] Furthermore, the clamping block has arc-shaped grooves at both ends, which are matched with the shape of the drill bit.

[0014] Furthermore, a fastening sleeve is threadedly connected to the threaded rod, and the fastening sleeve abuts against the clamping block after the clamping block clamps the drill bit.

[0015] Furthermore, a first rotating disk for rotating the fastening cylinder is fixedly connected to the fastening cylinder.

[0016] Furthermore, a second rotating disk for rotating the threaded rod is fixedly connected to both ends of the threaded rod.

[0017] Furthermore, the drive device includes at least one set of two first telescopic cylinders, with the two ends of the first telescopic cylinders respectively hinged to the base block and the base frame, and symmetrically located on both sides of the threaded rod.

[0018] Furthermore, a fixed platform is fixedly connected to the base frame, and at least one second telescopic cylinder is fixedly connected to the fixed platform. A limiting hole is provided on the bottom surface of the base block to cooperate with the end of the second telescopic cylinder for fixing the base block.

[0019] Furthermore, the bottom of the base frame is threaded with four column feet to adapt to uneven ground conditions.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The threaded rod drives the clamping block to move symmetrically. Combined with the arc groove design, it compensates for the sway of the drill bit in real time during the hoisting process, improving the uniformity of the clamping force.

[0022] 2. The drive device can quickly adjust the angle of the base block, thereby adjusting the angle of the drill bit, improving positioning accuracy and increasing the efficiency of drill bit adjustment and installation compared to traditional methods.

[0023] 3. Workers no longer need to fix the drill bit at a high position, which improves the safety of operation. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0026] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0027] Figure 3 This is a top view of the clamping block structure according to an embodiment of the present invention.

[0028] In the above-mentioned attached figures: bracket 1, base frame 2, threaded rod 3, clamping block 4, bottom block 5, sliding groove 6, driving device 7, arc groove 8, fastening cylinder 9, first rotating disk 10, second rotating disk 11, fixed platform 12, second telescopic cylinder 13, column foot 14. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1-3 As shown in the figure, this utility model embodiment proposes a drill bit positioning device for water diversion deviated well drilling, comprising:

[0031] Support 1, consisting of two opposing and side-by-side brackets, with a base frame 2 at its bottom;

[0032] The threaded rod 3 is rotatably mounted on two supports 1. The threaded rod 3 has symmetrically arranged opposite threads, and two clamping blocks 4 for clamping the drill bit are threadedly connected to the threaded rod 3.

[0033] The bottom block 5 has a sliding groove 6 that engages with the clamping block 4, and the two clamping blocks 4 are slidably connected in the sliding groove 6;

[0034] The drive unit 7 is used to drive the base block 5 to rotate around the threaded rod 3.

[0035] In this embodiment, as Figure 3 As shown, the clamping block 4 has arc-shaped grooves 8 at both ends, which are matched with the shape of the drill bit. The arc-shaped grooves 8 match the shape of the drill bit, increasing the contact area, enhancing clamping stability, and preventing the drill bit from slipping or deviating when rotating.

[0036] In this embodiment, as Figure 1 and Figure 3 As shown, a fastening cylinder 9 is threadedly connected to the threaded rod 3. After the drill bit is clamped by the clamping block 4, the fastening cylinder 9 presses against the clamping block 4. After clamping, the fastening cylinder 9 presses against the clamping block 4 to counteract vibration and reaction force, prevent the drill bit from loosening, and ensure drilling accuracy and construction safety.

[0037] In this embodiment, as Figure 1As shown, a first rotating disk 10 for rotating the fastening cylinder 9 is fixedly connected to the fastening cylinder 9. The first rotating disk 10 provides a force application point, making it easy to manually rotate the fastening cylinder 9, which saves effort and improves fastening efficiency.

[0038] In this embodiment, as Figure 1 As shown, a second rotating disk 11 for rotating the threaded rod 3 is fixedly connected to both ends of the threaded rod 3. The second rotating disk 11 increases the rotational torque of the threaded rod 3, reduces the difficulty of adjustment, and achieves fine control.

[0039] In this embodiment, as Figure 2 As shown, the driving device 7 includes at least one set of two first telescopic cylinders. The two ends of the first telescopic cylinders are respectively hinged to the base block 5 and the base frame 2, and are symmetrically located on both sides of the threaded rod 3. The symmetrical arrangement of the first telescopic cylinders synchronously drives the base block 5 to rotate, ensuring smooth angle adjustment, preventing the device from tilting, and improving positioning accuracy.

[0040] In this embodiment, as Figure 1 , 2 As shown, a fixed platform 12 is fixedly connected to the base frame 2, and at least one second telescopic cylinder 13 is fixedly connected to the fixed platform 12. A limiting hole is provided on the bottom surface of the base block 5 to cooperate with the end of the second telescopic cylinder 13 for fixing the base block 5. The second telescopic cylinder 13 cooperates with the limiting hole to fix the position of the base block 5, improving the accuracy and stability of the clamping block 4 when hoisting and fixing the drill bit. When it is necessary to rotate the base block 5, the second telescopic cylinder 13 disengages from the limiting hole, making it convenient to use.

[0041] In this embodiment, as Figure 1 , 2 As shown, the bottom of the base frame 2 is threadedly connected to four column feet 14 to adapt to uneven ground conditions. The height of the column feet 14 can be adjusted by thread to accommodate uneven ground, enhance the overall stability of the device, and expand its applicable scenarios.

[0042] The working principle is as follows: Adjust the height of the column foot 14 to level the base frame 2, activate the second telescopic cylinder 13 to push into the limiting hole of the bottom block 5, forming a three-point support and stable structure; drive the threaded rod 3 to rotate through the second rotating disk 11, and the symmetrical thread drives the clamping block 4 to move towards each other along the slide groove 6. When the arc groove 8 is in contact with the drill bit surface, a radial clamping force is generated. At the same time, the axial pre-tightening force is applied through the fastening cylinder 9 to counteract the hoisting swing; activate the second telescopic cylinder 13 to release the limitation of the limiting hole, and use the first telescopic cylinder to synchronously extend and retract to drive the bottom block 5 to rotate around the threaded rod 3, so that the drill bit is aligned with the drill bit mounting rod; rotate the first rotating disk 10 to make the end face of the fastening cylinder 9 fully contact the clamping block 4, forming a three-point rigid constraint of "threaded rod 3 - clamping block 4 - fastening cylinder 9", and finally dock and fix the drill bit to complete the installation of the drill bit.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water diversion slope shaft drilling bit positioning device, characterized in that, The utility model relates to a drilling device for drilling machine, including: Support is provided with two and is opposite and parallelly arranged, and the bottom is provided with the chassis; Threaded rod is rotatably installed on two supports, and opposite threads are symmetrically arranged on the threaded rod, and two clamping blocks for clamping drill bits are threadedly connected on the threaded rod; Bottom block is provided with the sliding slot that is connected with the clamping block, and two clamping blocks are slidably connected in the sliding slot; Driving device is used for driving bottom block to rotate around threaded rod.

2. A positioning device for a water intake slope shaft drilling bit as claimed in claim 1, characterized in that: Two ends of the clamping block are provided with arc grooves, and the arc grooves are matched with the shape of drill bit.

3. A positioning device for a water intake slope shaft drilling bit as defined in claim 1, characterized in that: The threaded rod is threadedly connected with the fastening cylinder, and the fastening cylinder is abutted on the clamping block after clamping the drill bit.

4. A positioning device for a water intake slope shaft drilling bit as claimed in claim 3, characterized in that: The first rotating disc for rotating the fastening cylinder is fixedly connected on the fastening cylinder.

5. A positioning device for a water intake slope shaft drilling bit as defined in claim 1, characterized in that: Second rotating disc for rotating the threaded rod is fixedly connected on both ends of the threaded rod.

6. A positioning device for a water intake slope shaft drilling bit as defined in claim 1, characterized in that: The driving device includes at least one group, one group two first telescopic cylinders, both ends of the first telescopic cylinder are hingedly connected on the bottom block and the chassis respectively, and are respectively symmetrically located on both sides of the threaded rod.

7. A positioning device for a water intake slope shaft drilling bit as defined in claim 1, characterized in that: The fixed table is fixedly connected on the chassis, at least one second telescopic cylinder is fixedly connected on the fixed table, and the bottom surface of the bottom block is provided with the limiting hole matched with the end of the second telescopic cylinder for fixing the bottom block.

8. A positioning device for a water intake slope shaft drilling bit as defined in claim 1, characterized in that: The bottom of the chassis is threadedly connected with four column feet to adapt to the uneven ground.

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