Reaming drilling tool

Abstract

The utility model discloses a broaching drilling tool, and relates to the field of drilling equipment, in particular to a broaching drilling tool, which comprises a drill bit, a cutter and a pin shaft, the drill bit is provided with a mounting groove for mounting the cutter, the cutter is rotatably arranged in the mounting groove through the pin shaft, and the mounting groove is provided with a limiting mechanism for limiting the rotating angle of the cutter; the tool comprises a tool bit used for drilling, the tool bit is arranged at the end of the tool, and when the tool rotates in the mounting groove, the tool bit always faces the drilling direction. The method has the advantages that the efficiency and quality of drilling operation are improved, the adaptability to different stratums is enhanced, and the method is particularly suitable for anchor cable reinforcement and foundation reinforcement of soft stratums, soil stratums, strongly weathered stratums and the like.

Description

Technical Field

[0001] The utility model relates to the field of drilling equipment, in particular to a hole-expanding drilling tool. Background Art

[0002] In the field of drilling equipment, traditional hole expansion operations usually rely on high-pressure water jetting to cut the slag. Although this method can complete the hole-making task to a certain extent, it has obvious limitations when facing soft strata, soil layers, and strongly weathered strata. These limitations are mainly manifested in the following aspects: Imprecise diameter control. Since the force and direction of high-pressure water jetting are difficult to accurately control, it is often difficult to ensure that the holes made have consistent diameters, which causes great inconvenience in engineering, especially in engineering projects that require high precision and high stability. Unable to cope with hard slag formations: When encountering harder slag formations, traditional high-pressure water jetting technology is difficult to achieve effective hole expansion because the cutting force of the water flow is not enough to break the harder materials, which limits its application in complex formation conditions. Limited efficiency: The efficiency of hole expansion by high-pressure water jetting is limited by water pressure and nozzle design. For large-area or deep hole operations, a long operation time is required, which affects the progress of the project. Environmental impact: The use of large amounts of water in high-pressure water jetting may have adverse effects on the surrounding environment, including soil erosion, water pollution, and other issues, especially in water-scarce areas. Equipment and operating costs: Traditional hole-enlarging equipment is usually large and complex, requiring professional operators to operate, which makes the equipment and operating costs high, and the movement and maintenance of the equipment are also difficult.

[0003] Therefore, in view of the shortcomings of the prior art, the reaming drill of the utility model provides an innovative solution. The drill is particularly suitable for anchor cable reinforcement and foundation reinforcement work in soft strata, soil layers and strongly weathered strata. Through design, the drill can withstand large load and large tonnage anchor cable tension, effectively solving the limitations of traditional methods. With this drill, the operator can make a small hole in the surface layer, pass through the surface layer to the bottom of the hole, and expand the hole by increasing the pushing force, and the expanded hole diameter can reach about twice its own diameter. In addition, according to different needs, the diameter of the drill itself can remain unchanged, and the hole diameter can be adjusted by replacing the reaming accessories, which greatly improves the flexibility and efficiency of the operation. The drill can also be operated by pressure rotation reaming, water pressure flow rate slag removal or compressed air slag removal to adapt to different working environments. When encountering strongly weathered strata or strata with a certain hardness, a pneumatic impactor can also be used for vibration crushing and cutting, and the exhaust function of the impactor is used to remove slag, which further improves work efficiency and adaptability. Utility Model Content

[0004] The utility model aims to provide a hole-reaming drill tool to solve the above-mentioned problems.

[0005] The technical solution adopted by the utility model is as follows: a hole reaming drilling tool, comprising: a drill bit, a tool and a pin shaft, the drill bit is provided with a mounting groove for mounting the tool, the tool is rotatably arranged in the mounting groove through the pin shaft, and the mounting groove is provided with a limiting mechanism for limiting the rotation angle of the tool;

[0006] The tool comprises a tool head for drilling holes. The tool head is arranged at the end of the tool and the tool head always faces the drilling direction when the tool rotates in the installation groove.

[0007] Furthermore, the cross section of the tool is arranged as a trapezoidal structure, and the tool head is arranged at the trapezoidal hypotenuse.

[0008] Furthermore, the limiting mechanism is configured as a groove that matches the rotating tool.

[0009] Furthermore, a protrusion is provided on the edge of the tool for locking the groove to achieve positioning.

[0010] Furthermore, a through hole is provided in the middle of the drill bit, and a buckle for limiting the rotation angle of the tool is provided in the through hole.

[0011] Furthermore, the buckle can be slidably disposed in the through hole.

[0012] Furthermore, the tool is provided in plurality.

[0013] Further, a plurality of cutter circumferential arrays are arranged at the end of the drilling tool.

[0014] Furthermore, the pin shaft is detachably arranged in the mounting groove.

[0015] Furthermore, the pin shaft is provided with a positioning device.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] The utility model provides an innovative solution to the deficiencies of the prior art. The drill is particularly suitable for anchor cable reinforcement and foundation reinforcement work in soft strata, soil layers and strongly weathered strata. Through design, the drill can withstand large load and large tonnage anchor cable tension, effectively solving the limitations of traditional methods. With this drill, the operator can make a small hole in the surface layer, penetrate the surface layer to the bottom of the hole, and expand the hole by increasing the pushing force, and the expanded hole diameter can reach about twice its own diameter. In addition, according to different needs, the diameter of the drill itself can remain unchanged, and the hole diameter can be adjusted by replacing the expansion accessories, which greatly improves the flexibility and efficiency of the operation. The drill can also be operated by pressure rotation expansion, water pressure flow rate slag removal or compressed air slag removal to adapt to different working environments. When encountering strongly weathered strata or strata with a certain hardness, a pneumatic impactor can also be used for vibration crushing and cutting, and the exhaust function of the impactor is used to remove slag, which further improves work efficiency and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the utility model.

[0019] Figure 2 This is the structural diagram of the drill bit of the utility model.

[0020] Figure 3 This is a structural diagram of a tool of the utility model.

[0021] Markings in the figure: 1-drill bit, 2-tool, 3-pin, 4-mounting slot, 5-tool head, 6-groove, 7-bump, 8-through hole, 9-clip. DETAILED DESCRIPTION

[0022] The utility model is described in detail below in conjunction with the accompanying drawings.

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In this embodiment, if Figure 1 and Figure 2 As shown, a hole reaming drilling tool comprises: a drill bit 1, a tool 2 and a pin shaft 3, the drill bit 1 is provided with a mounting groove 4 for mounting the tool 2, the tool 2 is rotatably arranged in the mounting groove 4 through the pin shaft 3, and the mounting groove 4 is provided with a limiting mechanism for limiting the rotation angle of the tool 2;

[0025] The tool 2 includes a tool head 5 for drilling, the tool head 5 is arranged at the end of the tool 2 and the tool head 5 always faces the drilling direction when the tool 2 rotates in the mounting groove 4;

[0026] The drill bit 1 is made of tungsten carbon alloy material, which has high hardness and wear resistance. The tool 2 is designed to be replaceable, so that it is convenient to select the appropriate type of tool 2 according to different formation conditions. The pin 3 is made of high-strength steel to ensure the stability of the tool 2 during rotation; specifically, a mounting groove 4 for mounting the tool 2 is provided inside the drill bit 1, and the tool 2 is rotatably arranged in the mounting groove 4 through the pin 3. The mounting groove 4 is designed with a limit mechanism for limiting the rotation angle of the tool 2 to prevent the tool 2 from being damaged due to excessive rotation during operation.

[0027] Furthermore, the cross section of the tool 2 is set to a trapezoidal structure, and the tool head 5 is set at the trapezoidal bevel. This design is conducive to improving the cutting efficiency and the service life of the tool 2, and allows the tool 2 to always face the drilling end.

[0028] Furthermore, the limiting mechanism is configured as a groove 6 that matches the tool 2 after rotation; this further ensures the positioning accuracy and stability of the tool 2 during the rotation process, and achieves fixation after rotation.

[0029] Furthermore, a protrusion 7 is provided on the edge of the tool 2 for locking the groove 6 to achieve positioning; this increases the tightness of the fit between the tool 2 and the limiting mechanism, and prevents the tool 2 from being displaced when rotating at high speed or subjected to external force.

[0030] Furthermore, a through hole 8 is provided in the middle of the drill bit 1, and a buckle 9 is provided in the through hole 8 to limit the rotation angle of the tool 2; the tool 2 provides additional stability. The buckle 9 is slidably provided in the through hole 8, so that the operator can adjust the position of the buckle 9 according to actual needs, thereby adjusting the rotation angle range of the tool 2; combined with the groove 6, the tool 2 can be fixed in multiple directions.

[0031] Furthermore, the buckle 9 can be slidably disposed in the through hole 8, and the buckle 9 can achieve the limitation of the angle adjustment.

[0032] Furthermore, the tool 2 is provided in plurality.

[0033] Furthermore, a plurality of cutters 2 are arranged in a circular array at the end of the drilling tool; this arrangement is conducive to improving the efficiency and uniformity of drilling.

[0034] Furthermore, the pin shaft 3 is detachably arranged in the mounting groove 4, which improves the convenience and economic benefits of the drilling tool and makes it more convenient to replace the tool 2.

[0035] Furthermore, the pin shaft 3 is provided with a positioning device, which ensures the accuracy and stability of the pin shaft 3 during the installation process and avoids damage to the tool 2 or operation accidents caused by improper positioning of the pin shaft 3.

[0036] Specifically, the steps for using the drilling tool are:

[0037] First, select a suitable type of tool 2 according to the operation requirements, and install the tool 2 into the mounting groove 4 of the drill bit 1. Use the pin 3 to fix the tool 2 in the drill bit 1, and adjust the limit mechanism to limit the rotation angle of the tool 2. Make sure that the protrusion 7 on the edge of the tool 2 matches the groove 6 to improve the stability of the tool 2.

[0038] Install the assembled drill bit on the drilling equipment and ensure that the connection between the drill bit and the equipment is firm and reliable. Check whether the cooling system and slag removal system are properly connected and test them to ensure that the system is operating normally.

[0039] According to the formation conditions and operation requirements, set appropriate drilling parameters, such as rotation speed, thrust force and coolant flow rate. Start the automatic control system, preheat and test run the drilling tools to ensure that the drilling tools are in good working condition.

[0040] Slowly lower the drill bit to the ground, gradually increase the thrust, and allow the drill bit 1 to start drilling into the formation. Pay attention to the working status of the drill bit and the drilling situation, and adjust the speed and thrust of the drill bit as needed.

[0041] When the drilling tool passes through the surface layer and reaches the required depth, the hole enlarging operation is carried out by increasing the pushing force. At this time, the position of the buckle 9 can be adjusted to change the rotation angle range of the cutter 2 to adapt to different hole enlarging requirements.

[0042] According to the wear of the tool 2, the severely worn tool 2 should be replaced in time. The detachable design of the pin 3 is used to conveniently disassemble and install the new tool 2. The drilling tool should be regularly maintained and serviced to ensure its stability and service life.

[0043] Through the above design, the hole expansion drill of the utility model not only improves the efficiency and quality of drilling operations, but also enhances the adaptability to different strata, and is particularly suitable for anchor cable reinforcement and foundation reinforcement work in soft strata, soil layers and strongly weathered strata.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hole enlarging drill, characterized in that: include: A drill bit (1), a tool (2) and a pin shaft (3), wherein the drill bit (1) is provided with a mounting groove (4) for mounting the tool (2), the tool (2) is rotatably mounted in the mounting groove (4) via the pin shaft (3), and the mounting groove (4) is provided with a limiting mechanism for limiting the rotation angle of the tool (2); The tool (2) comprises a tool head (5) for drilling holes. The tool head (5) is arranged at the end of the tool (2) and when the tool (2) rotates in the mounting groove (4), the tool head (5) always faces the drilling direction.

2. A hole-reaming drill according to claim 1, characterized in that: The cross section of the tool (2) is arranged as a trapezoidal structure, and the tool head (5) is arranged at the trapezoidal hypotenuse.

3. A hole-reaming drill according to claim 2, characterized in that: The limiting mechanism is configured as a groove (6) that matches the rotating tool (2).

4. A hole-reaming drill according to claim 3, characterized in that: The edge of the tool (2) is provided with a protrusion (7) for locking the groove (6) to achieve positioning.

5. A hole-reaming drill according to claim 1, characterized in that: A through hole (8) is provided in the middle of the drill bit (1), and a buckle (9) for limiting the rotation angle of the tool (2) is provided in the through hole (8).

6. A hole-reaming drill according to claim 5, characterized in that: The buckle (9) is slidably disposed in the through hole (8).

7. A hole-reaming drill according to claim 1, characterized in that: The tool (2) is arranged in plurality.

8. A hole-reaming drill according to claim 7, characterized in that: A plurality of said cutters (2) are arranged in a circular array at the end of the drilling tool.

9. The hole-reaming drill according to claim 1, characterized in that: The pin shaft (3) is detachably arranged in the installation groove (4).

10. The hole-reaming drill according to claim 1, characterized in that: The pin shaft (3) is provided with a positioning device.

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