Tower-shaped drilling device

Abstract

The utility model belongs to the field of rock-soil slope engineering anchor rod hole drilling equipment, particularly relates to a tower-shaped drilling device, and aims to solve the problems of low cutting efficiency, easiness in damage, unsmooth slag discharge and certain limitation on drilling depth and precision caused by the fact that a drill bit with a single structure is adopted by the conventional drilling equipment for operation under complicated geological conditions. According to the scheme, the device comprises a hexagonal drill rod, the top and the bottom of the hexagonal drill rod are in threaded connection with a fixing part and a third-layer tower-shaped drill bit respectively, the bottom of the third-layer tower-shaped drill bit is fixedly connected with a second-layer tower-shaped drill bit, and the bottom of the second-layer tower-shaped drill bit is in threaded connection with a first-layer tower-shaped drill bit. According to the multi-layer tower-shaped drill bit, due to the design of the multiple layers of tower-shaped drill bits, the cutting process can be conducted layer by layer, the drill bits of different layers bear different cutting tasks respectively, and therefore the overall cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor hole drilling equipment for rock and soil slope engineering, in particular to a tower-shaped drilling device. Background Art

[0002] As we all know, in slope reinforcement projects, compared with deep slope reinforcement projects, shallow slope reinforcement projects require repeated changes in drilling positions more frequently due to shallower drilling depths and smaller drilling diameters, so they require anchor hole drilling equipment that is lightweight, efficient, and safe.

[0003] Traditional drilling equipment often uses a single drill bit structure for operation. When faced with complex geological conditions, such as hard rock, pebble or gravel layers, it often suffers from low cutting efficiency, easy damage, and poor slag removal. In addition, the single drill bit design also limits the depth and accuracy of drilling operations.

[0004] In view of the above problems, the present utility model document proposes a tower-shaped drilling device. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that a single-structure drill bit is used for operation, which leads to low cutting efficiency, easy damage, poor slag discharge, and certain limitations on the depth and accuracy of drilling when facing complex geological conditions. A tower-shaped drilling device is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A tower-shaped drilling device includes a hexagonal drill rod, wherein the top and bottom of the hexagonal drill rod are respectively threadedly connected to a fixing portion and a third-layer tower-shaped drill bit, the bottom of the third-layer tower-shaped drill bit is fixedly connected to a second-layer tower-shaped drill bit, the bottom of the second-layer tower-shaped drill bit is threadedly connected to a first-layer tower-shaped drill bit, and the circumference of the first-layer tower-shaped drill bit is provided with a penetrating water outlet;

[0008] The fixing part, the hexagonal drill rod, the third-layer tower-shaped drill bit, the second-layer tower-shaped drill bit and the first-layer tower-shaped drill bit are coaxially arranged, and a hollow water inlet pipe is provided in the axis, and the water inlet pipe is connected to the water outlet, and the water inlet pipe and the water outlet are both φ5cm;

[0009] There is a slag discharge ring with a thickness of 2.5 mm between the edge of the third layer tower-shaped drill bit, the edge of the second layer tower-shaped drill bit, the edge of the first layer tower-shaped drill bit and the edge of each drill shaft.

[0010] In a possible design, the front end of the first-layer tower-shaped drill bit is respectively provided with two pointed saw teeth and two first planer teeth, and the plurality of pointed saw teeth and first planer teeth are distributed in a cross shape.

[0011] In a possible design, four second planer teeth are provided on the edge of the second-layer tower-shaped drill bit, and the four second planer teeth are distributed in a cross shape.

[0012] In a possible design, four third planer teeth are provided on the edge of the third-layer tower-shaped drill bit, and the four third planer teeth are distributed in a cross shape.

[0013] In a possible design, the length of the first layer of tower-shaped drill bits is 16 cm, the length of the second layer of tower-shaped drill bits is 30 cm, and the length of the third layer of tower-shaped drill bits is 35-45 cm.

[0014] In a possible design, the width of the pointed saw teeth is 10 mm, the width of the first planer teeth is 7 mm, and the widths of the second planer teeth and the third planer teeth are both 5 mm.

[0015] In the present application, when in use, after the operator assembles the equipment, he holds the handheld part of the driving device, places the first layer of drill bits in the drilling position, turns on the water and electricity switches and advances in the direction of hole depth. The slurry slag produced by each layer of drill bits is discharged outward along the borehole wall in a rotary spraying manner; when the drilling depth reaches the design requirement, the drilling device is pulled out, and a drilling operation is completed.

[0016] Beneficial effects:

[0017] In the present invention, the tower-shaped drilling device and the multi-layer tower-shaped drill bit design enable the cutting process to be deeper layer by layer, with the drill bits at different levels taking on different cutting tasks, thereby improving the overall cutting efficiency. In particular, when facing hard rock formations or complex geological conditions, it can significantly reduce the cutting difficulty and energy consumption.

[0018] In the utility model, the tower-shaped drilling device, the coaxial design and the threaded connection method ensure the stability and reliability of the device during the drilling process. The close fit between the multiple layers of drill bits reduces the impact of vibration and impact on the device, and improves the accuracy and stability of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of a tower-shaped drilling device proposed by the utility model;

[0020] Figure 2 This is a schematic structural diagram of the drill head portion of a tower-shaped drilling device proposed in the present invention;

[0021] Figure 3 This is a schematic diagram of the main cross-sectional structure of a tower-shaped drilling device proposed in the utility model;

[0022] Figure 4The present invention provides a schematic side view of the drill bit structure of a tower-shaped drilling device.

[0023] In the figure: 1. Hexagonal drill rod; 2. Fixing part; 3. Third-layer tower-shaped drill bit; 4. Second-layer tower-shaped drill bit; 5. First-layer tower-shaped drill bit; 6. Water outlet; 7. Water inlet pipe; 8. Pointed serrations; 9. First planer tooth; 10. Second planer tooth; 11. Third planer tooth. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Example 1

[0026] Reference Figures 1-4 A tower-shaped drilling device includes: a hexagonal drill rod 1, a fixing portion 2, a third-layer tower-shaped drill bit 3, a second-layer tower-shaped drill bit 4, a first-layer tower-shaped drill bit 5 and a water inlet pipe 7.

[0027] The hexagonal drill rod 1 is made of high-strength alloy steel, with an internal thread on the top for connection with the fixing part 2, and an internal thread on the bottom for connection with the third-layer tower drill bit 3;

[0028] The fixing portion 2 is designed as an external thread structure that matches the top thread of the hexagonal drill rod 1 and has a connection interface for connecting to a driving device;

[0029] The top of the third-layer tower-shaped drill bit 3 is designed to be an external thread that matches the bottom thread of the hexagonal drill rod 1, and the bottom is welded with the second-layer tower-shaped drill bit 4. Four third planer teeth 11 are evenly distributed on the edge of the third-layer drill bit, arranged in a cross shape. The width of each third planer tooth 11 is 5mm. The length of the third-layer drill bit can be selected within the range of 35 to 45cm to meet the drilling requirements of different depths.

[0030] The top of the second-layer tower-shaped drill bit 4 is connected to the third-layer tower-shaped drill bit 3, and the bottom is connected to the first-layer tower-shaped drill bit 5 through a thread. Four second planer teeth 10 are evenly distributed on the edge of the second-layer tower-shaped drill bit 4, also arranged in a cross shape. The width of each second planer tooth 10 is also 5mm, and the length of the second-layer drill bit is 30cm;

[0031] The top of the first-layer tower-shaped drill bit 5 is threadedly connected to the second-layer tower-shaped drill bit 4. A plurality of penetrating water outlets 6 are provided on the bottom circumference with a diameter of φ5cm. Two pointed serrations 8 and two first planer teeth 9 are provided at the front end, all of which are distributed in a cross shape. The width of the pointed serrations 8 is 10mm, the width of the first planer teeth 9 is 7mm, and the length of the first-layer drill bit is 16cm.

[0032] Example 2

[0033] refer to Figures 1-4 , improved on the basis of Example 1:

[0034] The water inlet pipe 7 is set along the axis of the entire device, enters from the top of the fixed part 2, passes through the entire device to the water outlet 6 of the first layer drill bit, and has a diameter of φ5cm to ensure unobstructed water flow.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tower-shaped drilling device, characterized in that: include: A hexagonal drill rod (1), wherein the top and bottom of the hexagonal drill rod (1) are respectively threadedly connected to a fixing portion (2) and a third-layer tower-shaped drill bit (3); the bottom of the third-layer tower-shaped drill bit (3) is fixedly connected to a second-layer tower-shaped drill bit (4); the bottom of the second-layer tower-shaped drill bit (4) is threadedly connected to a first-layer tower-shaped drill bit (5); and a water outlet (6) is provided on the circumference of the first-layer tower-shaped drill bit (5); The fixing portion (2), the hexagonal drill rod (1), the third-layer tower-shaped drill bit (3), the second-layer tower-shaped drill bit (4) and the first-layer tower-shaped drill bit (5) are coaxially arranged, a hollow water inlet pipe (7) is arranged in the axis, the water inlet pipe (7) is connected to the water outlet (6), and the water inlet pipe (7) and the water outlet (6) are both φ5 cm; A slag discharge channel with a thickness of 2.5 mm is provided between the edge of the third-layer tower-shaped drill bit (3), the edge of the second-layer tower-shaped drill bit (4), the edge of the first-layer tower-shaped drill bit (5) and the edge of each drill shaft.

2. A tower drilling device according to claim 1, characterized in that: The front end of the first-layer tower-shaped drill bit (5) is respectively provided with two pointed saw teeth (8) and two first planer teeth (9), and the plurality of pointed saw teeth (8) and first planer teeth (9) are distributed in a cross shape.

3. A tower drilling device according to claim 1, characterized in that: Four second planer teeth (10) are provided on the edge of the second-layer tower-shaped drill bit (4), and the four second planer teeth (10) are distributed in a cross shape.

4. A tower drilling device according to claim 1, characterized in that: Four third planer teeth (11) are provided on the edge of the third-layer tower-shaped drill bit (3), and the four third planer teeth (11) are distributed in a cross shape.

5. The tower drilling device according to claim 2, characterized in that: The length of the first-layer tower-shaped drill bit (5) is 16 cm, the length of the second-layer tower-shaped drill bit (4) is 30 cm, and the length of the third-layer tower-shaped drill bit (3) is 35 to 45 cm.

6. A tower drilling device according to any one of claims 2 to 4, characterized in that: The width of the pointed saw teeth (8) is 10 mm, the width of the first planer teeth (9) is 7 mm, and the widths of the second planer teeth (10) and the third planer teeth (11) are both 5 mm.

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