Steep terrain high-strength hard rock rotary excavating drill bit device

Abstract

The utility model relates to the technical field of rotary drilling bits, and discloses a steep terrain high-strength hard rock rotary drilling bit device which comprises a rotating disc, a mounting seat is arranged at the bottom of the rotating disc, and a connecting column is fixedly mounted on the middle side of the bottom of the rotating disc; according to the drill bit switching device, the servo positive and negative rotation motor drives the rotary disc to accurately rotate through cooperation of the transmission worm and the worm gear, rapid switching among different drill bits is achieved, and therefore the proper drill bits can be rapidly switched according to the terrain and stratum conditions of a construction site, and the drill bit switching device adapts to various complex geological conditions such as complex steep terrains and high-strength hard rocks; the construction flexibility and adaptability are improved, the problem that construction equipment is difficult to operate due to terrain and stratum limitation in traditional construction is effectively solved, various special geological structure and drilling requirements are met through the combined application technology of the bucket drill bit, the sand bailing drill bit, the cutting tooth barrel drill bit and the spiral drill bit, and the construction efficiency is improved. And the problem that machines and tools are seriously abraded in traditional rotary drilling dry method hole-forming pile foundation construction is solved.

Description

Technical Field

[0001] The present application relates to the field of rotary drilling bit technology, and in particular to a rotary drilling bit device for high-strength hard rock in steep terrain. Background Art

[0002] Bored pile is one of the most mature technologies used in pile foundation construction in my country, and rotary pile is a type of bored pile. It has the characteristics of fast hole-making speed, good pile quality, low construction noise, less environmental pollution, and short construction period. It is currently widely used in highway and bridge construction in my country and has achieved considerable benefits.

[0003] However, in the environment of complex steep terrain and high-strength hard rock, due to the large terrain changes, limited construction site, complex strata, and hard rock layers in some areas, the traditional rotary drilling dry-type pile foundation construction has the problems of difficult operation of construction machinery and equipment and severe consumption and wear, which seriously affects the construction efficiency and quality. Therefore, we urgently need to provide a steep terrain high-strength hard rock rotary drilling bit device.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problems in traditional rotary drilling dry pile foundation construction, such as the difficulty in operating construction machinery and the serious consumption and wear, which seriously affects the construction efficiency and quality, the present application provides a high-strength hard rock rotary drilling bit device for steep terrain.

[0006] The steep terrain high-strength hard rock rotary drilling bit device provided in this application adopts the following technical solutions:

[0007] A high-strength hard rock rotary drilling device for steep terrain comprises a turntable, a mounting seat is provided at the bottom of the turntable, a connecting column is fixedly installed on the middle side of the bottom of the turntable, the connecting column passes through the upper end of the mounting seat and is rotatably connected to the inner bottom of the mounting seat, a worm wheel is fixedly installed on the middle part of the outer surface of the connecting column, a servo forward and reverse motor is installed on the outer side of the mounting seat, the output end of the servo forward and reverse motor passes through the mounting seat and is connected to a transmission worm, the other end of the transmission worm is rotatably connected to the inner wall of the mounting seat, the side of the transmission worm is meshedly connected to the side of the worm wheel, four rail rods are evenly fixedly installed on the upper end of the turntable, and a spiral drill bit, a sand bailing drill bit, a pick barrel drill bit and a bucket drill bit are respectively arranged on the outer sides of the bottoms of the four rail rods.

[0008] Preferably, a hanging anchor frame is fixedly mounted on the top of the rail rod, limiting wheels are mounted on both ends of the hanging anchor frame, and a follower frame is movably mounted on the upper end of the rail rod.

[0009] Preferably, a drill rod is provided inside one end of the outer side of the follower frame, and the upper end of the drill rod is connected to a limiting wheel on the anchor frame through a lifting rope.

[0010] Preferably, a limit mounting frame is installed at the bottom of the rail rod, and the bottom of the drill rod passes through the limit mounting frame and is connected to a power device.

[0011] Preferably, a connecting shaft is fixedly mounted on the bottom output shaft of the power device, and the connecting shaft is detachably connected to the upper ends of the spiral drill bit, the sand dredging drill bit, the pick barrel drill bit and the bucket drill bit through latches.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The utility model drives the turntable to rotate precisely by utilizing the cooperation of the transmission worm and the worm wheel through the servo forward and reverse motor, thereby realizing rapid switching between different drill bits, so that the appropriate drill bit can be quickly switched according to the topography and stratum conditions of the construction site, and adapts to various complex geological conditions such as complex steep terrain and high-strength hard rock, thereby improving the flexibility and adaptability of construction, and effectively solving the problem of difficult operation of construction machinery and tools caused by terrain and stratum restrictions in traditional construction. Through the combined application technology of bucket drill bits, sand bailing drill bits, pick barrel drill bits and spiral drill bits, various special geological structures and drilling requirements are met, and the problem of severe wear of machinery and tools in traditional rotary drilling dry-method pile foundation construction is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall front view structure of the embodiment of the application;

[0015] Figure 2 is a schematic diagram of the outer structure of the mounting seat of the embodiment of the application;

[0016] Figure 3 is a schematic diagram of the internal structure of the mounting base of the embodiment of the application;

[0017] Figure 4 It is an application example Figure 3 Enlarged structural diagram at A in the middle.

[0018] Explanation of the reference numerals in the accompanying drawings: 1. turntable; 2. mounting seat; 3. rail rod; 4. follower frame; 5. anchor frame; 6. drill rod; 7. power unit; 8. connecting shaft; 9. spiral drill bit; 10. limit mounting frame; 11. sand bailing drill bit; 12. pick barrel drill bit; 13. bucket drill bit; 14. servo forward and reverse motor; 15. transmission worm; 16. connecting column; 17. worm gear. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The present application embodiment discloses a high-strength hard rock rotary drilling drill bit device for steep terrain, referring to Figure 1-Figure 4 , including a turntable 1, a mounting seat 2 is provided at the bottom of the turntable 1, a connecting column 16 is fixedly installed on the middle side of the bottom of the turntable 1, the connecting column 16 passes through the upper end of the mounting seat 2 and is rotatably connected to the inner bottom of the mounting seat 2, a worm gear 17 is fixedly installed on the middle of the outer surface of the connecting column 16, which plays the role of connecting the turntable 1 and the mounting seat 2 and provides an installation position for the worm gear 17, the connecting column 16 passes through the upper end of the mounting seat 2, and is connected to the mounting seat 2 through a bearing, so that the turntable 1 can stably rotate on the mounting seat 2, and a servo is installed on the outer side of the mounting seat 2 The servo forward and reverse motor 14, the output end of the servo forward and reverse motor 14 passes through the mounting seat 2 and is connected to a transmission worm 15, the other end of the transmission worm 15 is rotatably connected to the inner wall of the mounting seat 2, and the side of the transmission worm 15 is meshed and connected to the side of the worm wheel 17. The servo forward and reverse motor 14 uses the cooperation of the transmission worm 15 and the worm wheel 17 to drive the turntable 1 to rotate accurately, so as to realize rapid switching between different drill bits, so as to be able to quickly switch the appropriate drill bit according to the terrain and stratum conditions of the construction site, and adapt to complex and steep The various complex geological conditions such as terrain and high-strength hard rock have improved the flexibility and adaptability of construction, and effectively solved the problem of difficult operation of construction machinery and tools caused by terrain and stratum restrictions in traditional construction. Four rail rods 3 are evenly fixed on the upper end of the turntable 1, and spiral drill bits 9, sand drill bits 11, pick barrel drill bits 12 and bucket drill bits 13 are respectively arranged on the outer sides of the bottoms of the four rail rods 3. The use of bucket drill bits 13 is conducive to ensuring the stability of the holes, and the use of sand drill bits 11 to clean the holes can keep the holes clean, which is conducive to subsequent drilling. When encountering embedded rocks such as high-strength hard rock, the pick barrel drill bit 12 can efficiently form the required holes and improve construction efficiency. When encountering local sandstone, the hard pick drill bit is not efficient. The spiral drill bit 9 can effectively drill through the sandstone layer to ensure the continuity and efficiency of construction. Through the combined application technology of the bucket drill bit 13, the sand bailing drill bit 11, the pick barrel drill bit 12 and the spiral drill bit 9, various special geological structures and drilling requirements are met, and the problem of severe wear of machinery and tools in the traditional rotary drilling dry method of pile foundation construction is solved.

[0021] Reference Figure 1-Figure 4The top of the rail rod 3 is fixedly installed with an anchor frame 5, and limiting wheels are installed at both ends of the anchor frame 5. The limiting wheels at both ends are used to guide and limit the movement direction of the lifting rope to ensure that the lifting rope can run smoothly and smoothly during the lifting and lowering of the drill bit. The upper end of the rail rod 3 is movably installed with a follower frame 4, and a drill rod 6 is arranged inside the outer end of the follower frame 4. The upper end of the drill rod 6 is connected to the limiting wheel on the anchor frame 5 through the lifting rope. The bottom of the rail rod 3 is installed with a limiting mounting frame 10, and the bottom of the drill rod 6 passes through the limiting mounting frame 10 and is connected to a power device 7. The power device 7 provides a power source for the rotation and drilling of the drill bit, and it usually adopts equipment such as an electric motor or a hydraulic motor. , converting electrical energy or hydraulic energy into mechanical energy, driving the connecting shaft 8 and the drill bit to rotate at high speed through the output shaft, the connecting shaft 8 is fixedly installed on the output shaft at the bottom of the power device 7, and the connecting shaft 8 is detachably connected to the upper ends of the spiral drill bit 9, the sand drill bit 11, the pick barrel drill bit 12 and the bucket drill bit 13 through pins. The output shaft at the bottom of the power device 7 is detachably connected to the drill bit through the connecting shaft 8, which can make the maintenance and replacement of the drill bit more convenient and quick. When a drill bit is worn or damaged, the operator can quickly remove it for repair or replacement without large-scale disassembly of the entire device, reducing equipment downtime and improving construction efficiency.

[0022] The implementation principle of the high-strength hard rock rotary drilling bit device for steep terrain in the embodiment of the present application is as follows: when in specific use, first fix the mounting base 2 on the drilling rig to ensure that the device is firmly installed, select a suitable drill bit according to the geological conditions of the construction site, and perform construction drilling on the predetermined position opposite. During the drilling process, when the stratum changes, it is necessary to switch the drill bit in time. The operator controls the external crane and the lifting rope to drive the drill bit located underground to lift upward. When the drill bit is completely out of the drilled hole, start the servo forward and reverse motor 14 to rotate the turntable 1, accurately switch the drill bit to be used to the working position, and then perform construction drilling again.

[0023] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0024] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotary drilling device for high-strength and hard rock in steep terrain, comprising a rotary table (1), characterized in that: A mounting seat (2) is provided at the bottom of the turntable (1), a connecting column (16) is fixedly installed at the middle side of the bottom of the turntable (1), the connecting column (16) passes through the upper end of the mounting seat (2) and is rotatably connected to the inner bottom of the mounting seat (2), a worm wheel (17) is fixedly installed at the middle of the outer surface of the connecting column (16), a servo forward and reverse motor (14) is installed on the outer side of the mounting seat (2), the output end of the servo forward and reverse motor (14) passes through the mounting seat (2) and is connected to a transmission worm (15), the other end of the transmission worm (15) is rotatably connected to the inner wall of the mounting seat (2), and the side of the transmission worm (15) is meshedly connected to the side of the worm wheel (17), and four rail rods (3) are evenly fixedly installed at the upper end of the turntable (1), and a spiral drill bit (9), a sand dredging drill bit (11), a pick barrel drill bit (12) and a bucket drill bit (13) are respectively arranged on the outer sides of the bottoms of the four rail rods (3).

2. The steep terrain high-strength hard rock rotary drilling drill bit device according to claim 1 is characterized in that: The top of the rail rod (3) is fixedly mounted with an anchor frame (5), both ends of the anchor frame (5) are mounted with limit wheels, and the upper end of the rail rod (3) is movably mounted with a follower frame (4).

3. The steep terrain high-strength hard rock rotary drilling drill bit device according to claim 2 is characterized in that: A drill rod (6) is provided inside one end of the outer side of the follower frame (4), and the upper end of the drill rod (6) is connected to a limiting wheel on the anchor frame (5) through a lifting rope.

4. The steep terrain high-strength hard rock rotary drilling drill bit device according to claim 3 is characterized in that: A limit mounting frame (10) is installed at the bottom of the rail rod (3), and the bottom of the drill rod (6) passes through the limit mounting frame (10) and is connected to a power device (7).

5. The steep terrain high-strength hard rock rotary drilling drill bit device according to claim 4, characterized in that: A connecting shaft (8) is fixedly mounted on the output shaft at the bottom of the power device (7), and the connecting shaft (8) is detachably connected to the upper ends of the spiral drill bit (9), the sand dredging drill bit (11), the pick barrel drill bit (12) and the bucket drill bit (13) through latches.

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