Efficient centering drilling construction method of spiral steel pipe drilling machine

Abstract

The invention relates to an efficient centering drilling construction method of a spiral steel pipe drilling machine, and relates to the technical field of pipe pile construction.The construction method comprises the following construction steps that preparation is conducted, installation is conducted, specifically, a guide assembly is fixedly installed at the position to be drilled through a connecting assembly, and an adjustable guide cavity is formed in the guide assembly; a detection mechanism and a detection cavity are arranged on the guide assembly; drilling is conducted, specifically, a drilling machine is in place, a drilling rod of the drilling machine conducts drilling, a guide cavity is used for guiding in the process that the drilling rod drills into the earth surface, and after the drilling rod drills into the earth surface, a detection mechanism is used for detecting the perpendicularity of the drilling rod and giving an alarm; mounting is conducted; and pouring. Guiding can be conducted through the guide cavity when the drilling machine drill rod just enters the inclined ground, the probability of deflection during drilling of the drilling machine is reduced, after the drilling machine drill rod drills into the ground, the guide cavity is enlarged, the drilling machine drill rod makes contact with the detection cavity for detection, the detection effect is improved, and therefore the drilling machine precision and the construction efficiency can be improved at the same time.

Description

Technical Field

[0001] The present application relates to the technical field of pipe pile construction, and in particular to a high-efficiency centering drilling construction method of a spiral steel pipe drilling rig. Background Art

[0002] In the construction of pile foundations for photovoltaic power generation projects, spiral steel pipe piles have been widely used due to their significant advantages of high construction efficiency, small disturbance to the ground surface, and strong adaptability to low temperatures. Traditional spiral steel pipe piles are made by drilling anchor spiral steel piles into the earthwork and then pouring concrete to form a pile foundation.

[0003] During pipe pile construction, affected by the steep environment on site, the drill rod of the drill rig is prone to tilt during the drilling process, especially when the drill rod of the drill rig is drilled into an inclined surface, the risk of tilting is greater, which reduces the verticality of the borehole and thus reduces the drilling accuracy of the drill rig. Therefore, in order to improve the verticality of the spiral steel pipe pile, the drilling speed of the drill rig can only be reduced. In addition, the personnel are required to stop the drilling rig after each distance and use a ruler to check the verticality of the pile foundation, which greatly reduces the construction efficiency. Therefore, improving the drilling accuracy and construction efficiency at the same time is an urgent problem to be solved. Summary of the invention

[0004] In order to improve drilling accuracy and construction efficiency at the same time, the present application provides a high-efficiency centering drilling construction method for a spiral steel pipe drilling rig.

[0005] The present application provides a high-efficiency centering drilling construction method for a spiral steel pipe drilling rig, which adopts the following technical solution: A high-efficiency centering drilling construction method for a spiral steel pipe drilling rig comprises the following construction steps: Preparation: material preparation, measuring and marking drilling positions; Installation: The guide assembly is fixedly installed to the position to be drilled through the connecting assembly. An adjustable guide cavity is formed in the guide assembly. The verticality of the guide assembly is detected and adjusted so that the verticality of the guide assembly meets the requirements. The guide assembly is provided with a detection mechanism for detecting the verticality of the drilling rig. The detection mechanism is formed with a detection cavity that is coaxial with the guide cavity and has the same diameter as the drill rod of the drilling rig; Drilling: The drilling rig is in place, and the drill rod of the drilling rig passes through the guide cavity and the detection cavity to drill. At this time, the diameter of the guide cavity is equal to the diameter of the drill rod of the drilling rig, so that the guide cavity is used to guide the drill rod when drilling into the surface. After the drill rod drills into the surface, the guide assembly increases the diameter of the guide cavity, so that when the drill rod is skewed, the detection mechanism is squeezed and does not contact the guide cavity. The detection mechanism is used to detect the verticality of the drill rod and issue an alarm; Installation: Install the steel cage and formwork into the hole; Casting: pouring concrete.

[0006] By adopting the above technical scheme, the material is accurately measured and the drilling position is marked, the guide assembly is fixedly installed to the marked drilling position through the connecting assembly, and then the verticality of the guide assembly is detected and adjusted to make the verticality of the guide assembly meet the requirements, the diameter of the guide cavity is adjusted to be the same as the diameter of the drill rod, and then the drill rod of the drilling rig is put into place to pass through the guide cavity and the detection cavity for drilling. Therefore, when the drill rod of the drilling rig is just drilled into the surface, the guide assembly can guide and position the drill rod of the drilling rig, reducing the probability of the drill rod of the drilling rig being skewed. When the drill rod of the drilling rig is drilled into the ground, the guide assembly increases the diameter of the guide cavity so that the drill rod of the drilling rig does not contact the guide cavity. When the drill rod of the drilling rig is skewed, the drill rod of the drilling rig can act on the detection mechanism, which can detect the verticality of the drill rod of the drilling rig. The detection data is transmitted to the drilling rig, and an alarm is processed when it exceeds the specified value. The staff adjusts the parameters of the drilling rig in real time according to the detection data so that the verticality of the drill rod meets the requirements, thereby achieving drilling and forming a hole, and then installs the steel cage and template into the hole, and finally pours concrete to complete the construction of the pipe pile.

[0007] After the guide assembly is installed and the verticality is detected and adjusted, the verticality of the guide assembly meets the requirements, that is, the verticality of the detection mechanism meets the requirements. The guide cavity of the guide assembly can guide when the drill rod of the drilling rig just enters the inclined ground, reducing the probability of the drilling rig being skewed during drilling. After the drill rod of the drilling rig is drilled into the surface, the guide cavity increases, making the guide cavity diameter larger than the detection cavity. The drill rod of the drilling rig contacts the detection cavity but not the guide cavity, thereby reducing the probability of pushing the arc guide tube and the detection mechanism to be skewed when the drill rod of the drilling rig is skewed, and improving the detection effect. When the detection mechanism detects that the verticality exceeds the requirement, it will alarm, and the construction personnel will stop the machine in time for adjustment. If it meets the requirements, drilling will continue. Therefore, the drilling speed of the drilling rig can be accelerated, and the probability of invalid detection and shutdown is also reduced, thereby improving the drilling rig accuracy and construction efficiency at the same time.

[0008] The detection mechanism is arranged on the guide component, which can guide the drill rod of the drilling rig and also detect the verticality of the drilling rig through the detection structure. Moreover, although the drilling rig is in contact with the detection cavity when there is no tilt during the drilling process, the vibration of the detection mechanism is extremely small, thereby reducing the adverse effect of the vibration of the drill rod during drilling on the detection of the detection mechanism. Furthermore, the detection mechanism is simple and stable. Compared with the use of satellite transmission and other structures, the present application has lower cost and is more stable, which further improves the drilling rig accuracy and construction efficiency.

[0009] Moreover, the guide assembly protrudes above the ground surface, so that the soil displaced when the drill rod of the drilling rig drills in can be moved to the outside of the guide assembly. Therefore, when the drilling rig withdraws from the hole, the guide assembly can block the soil from entering the hole, thereby reducing the adverse effect of the soil on subsequent construction and further improving construction efficiency.

[0010] Optionally, the guide assembly includes a connecting ring, two arc-shaped guide tubes and an adjusting member, the connecting assembly and the detection mechanism are arranged on the connecting ring, the two arc-shaped guide tubes are slidably arranged on the inner wall of the connecting ring and the axes of the two arc-shaped guide tubes coincide with those of the connecting ring, and the adjusting member is used to drive the two arc-shaped guide tubes to move closer to or away from each other; when the drill rod of the drilling rig just penetrates the ground, the two arc-shaped guide tubes abut against each other for positioning and make the diameter of the guide cavity the same as the diameter of the drill rod of the drilling rig; after the drill rod of the drilling rig penetrates the ground, the adjusting member drives the two arc-shaped guide tubes to move away from each other and increase the diameter of the guide cavity.

[0011] By adopting the above technical scheme, the connecting ring is used to realize the installation of the connecting assembly and the detection mechanism, and the adjusting part drives the two arc-shaped tubes to abut against each other for positioning. At this time, the diameter of the guide cavity is the same as the diameter of the drill rod of the drilling rig, so it is possible to guide the drill rod of the drilling rig just when it is drilled into the surface. After the drill rod of the drilling rig is drilled into the surface, the adjusting part drives the two arc-shaped tubes away from each other, thereby increasing the diameter of the guide cavity. Therefore, the drill rod of the drilling rig continues to contact the detection cavity and does not contact the guide cavity, so that the detection mechanism can realize detection when the drill rod of the drilling rig is skewed, and when the drill rod of the drilling rig is skewed, it will not push the two arc-shaped tubes and the connecting ring to move and affect the detection accuracy, thereby improving the detection effect and further improving the drilling rig accuracy and construction efficiency.

[0012] Optionally, the detection mechanism includes: A plurality of arc rings are arranged in a circular array around the axis of the connecting ring and are radially slidably arranged on the connecting ring. Two adjacent arc rings are connected by an elastic component and the plurality of arc rings are abutted against each other and then spliced ​​to form an annular detection ring body. The detection cavity is formed by the inner wall of the detection ring body and the axis coincides with the axis of the connecting ring. A plurality of pressure detectors are arranged on the connecting ring and located on the side of the arc ring away from the axis of the detection ring body. The plurality of pressure detectors are arranged one-to-one correspondingly to the plurality of arc rings, and the detection elements are pressed against the arc rings and used to detect pressure.

[0013] By adopting the above technical solution, when the drilling rig is skewed, it presses against the arc ring and pushes the arc ring to move. The arc ring overcomes the elastic force of the elastic component and contacts the pressure sensor. The contact pressure signal of the pressure sensor is transmitted to the drilling rig. The drilling rig adjusts the parameters of the drilling rig drill rod in time according to the pressure data. When the drilling rig drill rod returns to verticality, it moves away from the arc ring. The elastic component pulls the arc ring back, thereby reducing the pressure of the pressure sensor. Then, the verticality of the drilling rig can continue to be detected, thereby realizing the detection of the skewness of the drilling rig at multiple angles. Moreover, by detecting the pressure of the drilling rig through multiple pressure detectors, the direction of the skewness of the drilling rig can be known in time, so that the drilling rig can be adjusted faster and more timely, thereby further improving the drilling rig accuracy and construction efficiency.

[0014] Optionally, a mounting ring is detachably mounted on the connecting ring via a mounting assembly, and the arc-shaped ring is slidably disposed on the mounting ring and cooperates with the mounting ring to form a protective cavity for mounting the pressure detector.

[0015] By adopting the above technical solution, the arc ring and the pressure detector can be easily replaced through the detachable installation of the mounting ring, and the pressure detector is arranged in the protective cavity, thereby reducing the probability of soil moving to the pressure detector and causing damage to the pressure detector when the drilling rig drill pipe is drilling.

[0016] Optionally, the installation component includes: A mounting rod is arranged on the mounting ring and is plugged and installed on the connecting ring for positioning; A positioning block is arranged on the mounting rod and abuts against the connecting ring for positioning; The positioning screw passes through the positioning block and is threadedly connected to the connecting ring for positioning.

[0017] By adopting the above technical solution, the mounting rod is plugged and installed on the connecting ring for positioning, the positioning block is abutted against the connecting ring for positioning, and the positioning screw is passed through the positioning block and threadedly connected to the connecting ring for positioning, thereby realizing the installation of the mounting ring, that is, the installation of the detection structure can be realized and the position of the detection mechanism can be positioned, so that the pressure detector can accurately measure the direction of the drilling rig's tilt, and the drilling rig can be adjusted as soon as possible so that the verticality of the drilled hole meets the requirements, thereby improving the drilling rig's accuracy and construction efficiency.

[0018] Optionally, the elastic component includes: Two fixing columns are arranged on both ends of the arc ring; The two ends of the tension spring are hooked on two fixing posts located on two adjacent arc-shaped rings and close to each other, and drive the two arc-shaped rings to abut against each other for positioning.

[0019] By adopting the above technical solution, the two ends of the tension spring are hooked on the two fixed columns, and the two fixed columns are located on one end of the two adjacent arc rings close to each other. The tension spring pulls the two adjacent arc rings against each other for positioning, so that multiple arc rings are pressed together to form an annular detection ring body, and a detection cavity is formed in the detection ring body. The drilling rig coaxially passes through the detection cavity, so it is easy to replace the arc ring and the tension spring, thereby improving the elastic positioning effect of the elastic component on the multiple arc rings.

[0020] Optionally, the connecting ring is provided with a plurality of connecting holes around its axis, and the connecting assembly comprises: A connecting screw rod passes through the connecting hole and has a diameter smaller than that of the connecting hole and is drilled into the ground surface for positioning; The first locking nut and the second locking nut are threadedly connected to the connecting screw rod and pressed against the upper and lower surfaces of the connecting ring for positioning.

[0021] By adopting the above technical solution, multiple connecting screws are rotated and drilled into the ground, and then each connecting screw is threadedly connected to locking nut 2, and then multiple connecting screws are simultaneously passed through multiple connecting holes, and then locking nut 1 is threadedly connected to the connecting screw, and then the positions of locking nut 1 and locking nut 2 are adjusted, and the verticality of the arc-shaped conduit is checked at the same time, so that the verticality of the arc-shaped conduit meets the requirements, and finally locking nut 1 and locking nut 2 are twisted to press against the upper and lower surfaces of the connecting ring for positioning, thereby greatly improving the convenience of adjusting the verticality of the arc-shaped conduit and improving construction efficiency.

[0022] At the same time, the connecting screw is turned into the ground surface, and the thread of the connecting screw improves the positioning effect, thereby further improving the fixing effect of the arc guide tube and the detection mechanism, and improving the drilling accuracy and construction efficiency.

[0023] Optionally, the bottoms of the two arc-shaped conduits are pressed downward against or inserted into the ground surface and are used to locate and block soil from entering the hole and to form a movable space between the lower surface of the connecting ring and the ground surface to facilitate the tightening of the second locking nut.

[0024] By adopting the above technical solution, the movable space is provided for turning the locking nut 2, and turning the locking nut 1 and the locking nut 2 is used to adjust the position of the connecting ring and the adjusting tube, so that the bottom of the arc-shaped conduit is against the ground surface, or the arc-shaped conduit is inserted into the ground surface, so as to facilitate the adjustment of the verticality of the arc-shaped conduit to meet the requirements, thereby improving the convenience of adjusting the arc-shaped conduit. At the same time, the arc-shaped conduit can also prevent soil from entering the hole, thereby improving the drilling accuracy and construction efficiency.

[0025] Optionally, the bottom of the connecting screw rod is provided with a pointed end for easy insertion into the ground, and the bottom of the two arc-shaped guide tubes are provided with guide angles for easy insertion into the ground.

[0026] By adopting the above technical solution, the tip and the guide angle are easy to insert into the ground surface, thereby improving the convenience during adjustment and improving the construction efficiency.

[0027] Optionally, a connecting portion is provided at the top of the connecting screw rod for facilitating connection with an electric tool.

[0028] By adopting the above technical solution, the connecting part is connected with the electric tool, so that it is convenient to use the electric tool to drive the connecting screw to rotate, so that the connecting screw is easy to rotate and insert into the ground surface, thereby improving construction efficiency.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the guide assembly is installed and the verticality is detected and adjusted, the guide cavity can guide when the drill rod of the drill rig just enters the inclined ground, reducing the probability of the drill rig being skewed during drilling. After the drill rod of the drill rig is drilled into the surface, the guide cavity increases, and the drill rod of the drill rig contacts the detection cavity but not the guide cavity, reducing the probability of pushing the arc guide tube and the detection mechanism to be skewed when the drill rod of the drill rig is skewed, improving the detection effect, thereby improving the drilling rig accuracy and construction efficiency at the same time.

[0030] 2. By arranging the detection mechanism on the guide assembly, the guide assembly can guide the drill rod of the drilling rig and can also detect the verticality of the drilling rig through the detection structure. Moreover, although the drilling rig is in contact with the detection cavity when there is no skew during the drilling process, the vibration of the detection mechanism is extremely small, thereby reducing the adverse effect of the vibration of the drill rod during drilling on the detection of the detection mechanism. Furthermore, the detection mechanism is simple and stable. Compared with the use of satellite transmission and other structures, the present application has lower cost and is more stable, which further improves the drilling rig accuracy and construction efficiency.

[0031] 3. The guide assembly protrudes above the ground surface, so that the soil displaced when the drill rod of the drill rig drills in can be moved to the outside of the guide assembly. Therefore, when the drill rig withdraws from the hole, the guide assembly can block the soil from entering the hole, thereby reducing the adverse effects of the soil on subsequent construction and further improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure in the construction method; Figure 2 It is a cross-sectional schematic diagram of AA in 1; Figure 3 It is a partial exploded view of the mounting ring and detection mechanism.

[0033] Figure numerals: 1. Guide assembly; 11. Connecting ring; 12. Arc-shaped guide tube; 13. Adjusting piece; 14. Connecting hole; 15. Guide cavity; 16. Detection ring body; 17. Detection cavity; 2. Mounting ring; 21. Support ring; 3. Connecting assembly; 31. Connecting screw; 32. Locking nut one; 33. Locking nut two; 34. Connecting part; 35. Movable space; 4. Mounting assembly; 41. Mounting rod; 42. Positioning block; 43. Positioning screw; 5. Detection mechanism; 51. Arc-shaped ring; 52. Pressure detector; 53. Shielding ring; 54. Protective cavity; 55. Arc-shaped groove; 6. Elastic assembly; 61. Fixed column; 62. Tension spring. DETAILED DESCRIPTION

[0034] The present application is described in further detail below.

[0035] The embodiment of the present application discloses a high-efficiency centering drilling construction method for a spiral steel pipe drilling rig.

[0036] Reference Figure 1 , the efficient centering drilling construction method of spiral steel pipe drilling rig includes the following construction steps: Preparation: Material preparation, measuring and marking drilling locations.

[0037] Installation: The guide assembly 1 is fixedly installed to the position to be drilled through the connecting assembly 3. An adjustable guide cavity 15 is formed in the guide assembly 1. The verticality of the guide assembly 1 is detected and adjusted so that the verticality of the guide assembly 1 meets the requirements. A detection mechanism 5 for detecting the verticality of the drilling rig is provided on the guide assembly 1. The detection mechanism 5 forms a detection cavity 17 which is coaxial with the guide cavity 15 and has the same diameter as the drill rod of the drilling rig.

[0038] Drilling: The drilling rig is in place, and the drill rod of the drilling rig passes through the guide cavity 15 and the detection cavity 17 to drill. At this time, the diameter of the guide cavity 15 is equal to the diameter of the drill rod of the drilling rig, so that the guide cavity 15 is used to guide the drill rod during drilling into the ground. After the drill rod enters the ground, the guide assembly 1 increases the diameter of the guide cavity 15, so that when the drill rod is skewed, the detection mechanism 5 is squeezed and does not contact the guide cavity 15. The detection mechanism 5 is used to detect the verticality of the drill rod and issue an alarm.

[0039] Installation: Install the steel cage and formwork into the hole.

[0040] Casting: pouring concrete.

[0041] Reference Figure 1 and Figure 2 The guide assembly 1 includes a connecting ring 11, two arc-shaped guide tubes 12 and an adjusting member 13. A connecting hole 14 penetrating the connecting ring 11 is provided on the connecting ring 11 along the axis of the connecting ring 11. At the same time, a plurality of connecting holes 14 are arranged in a circular array around the axis of the connecting ring 11, and there may be three connecting holes 14; the axes of the two arc-shaped guide tubes 12 are parallel to the axis of the connecting ring 11, and the two arc-shaped guide tubes 12 are relatively slidably installed on the inner side wall of the connecting ring 11 along the radial direction of the connecting ring 11, and a guide cavity 15 is formed between the two arc-shaped guide tubes 12. When the two arc-shaped guide tubes 12 approach each other, they abut against each other. At this time, the diameter of the guide cavity 15 is the smallest and is the same as the diameter of the drill pipe.

[0042] There are two adjusting members 13 and they are used to drive the two arc-shaped tubes 12 to move closer to or away from each other. The adjusting members 13 can be driving screws, electric push rods, and cylinders. If the adjusting member 13 is a driving screw, the driving screw is threadedly connected to the outer wall of the connecting ring 11, and the driving screw is rotatably connected to the outer wall of the arc-shaped tube 12. If the adjusting member 13 is an electric push rod and a cylinder, the electric push rod or the cylinder is fixedly installed on the outer wall of the connecting ring 11, and the electric push rod or the cylinder piston rod is fixedly connected to the outer wall of the arc-shaped tube 12.

[0043] When drilling, the two adjusting members 13 drive the two arc-shaped guide tubes 12 to approach each other and then abut against each other. At this time, the diameter of the guide cavity 15 is the same as the diameter of the drill rod. When the drill rod passes through the guide cavity 15 for drilling, the guide cavity 15 is used to guide the drill rod, thereby reducing the probability of the drill rod being skewed when it is just drilled into the ground; when the drill rod is drilled into the ground, the two adjusting members 13 drive the two arc-shaped guide tubes 12 to move away from each other and then abut against the inner wall of the connecting ring 11 for positioning, thereby increasing the size of the guide cavity 15. Therefore, when the drill rod is skewed during the drilling process, the drill rod contacts the detection mechanism 5, and the drill rod will not contact the guide cavity 15 to push the detection mechanism 5 itself to be skewed.

[0044] The connection assembly 3 is provided with multiple connection holes 14 corresponding to each other, and the connection assembly 3 is inserted into the ground for fixation. The connection assembly 3 adjusts the height of the connection ring 11 through the connection holes 14 and is used to adjust the verticality of the two arc-shaped conduits 12.

[0045] The connecting assembly 3 includes a connecting screw 31, a locking nut 1 32 and a locking nut 2 33. The connecting screw 31 rotates vertically downward and then drills into the ground. The outer diameter of the connecting screw 31 is smaller than the connecting hole 14 and vertically passes through the connecting hole 14 to extend above the connecting ring 11. The bottom end of the connecting screw 31 is provided with a tip for easy insertion into the ground. The top end of the connecting screw 31 is provided with a connecting portion 34 in the form of a regular polygon. The connecting portion 34 is used for plugging and connecting with an electric tool so that the electric tool can drive the connecting screw 31 to rotate. The locking nut 1 32 and the locking nut 2 33 are threadedly connected to the connecting screw 31, and the locking nut 1 32 is pressed against the upper surface of the connecting ring 11 for positioning, while the locking nut 2 33 is pressed against the lower surface of the connecting ring 11 for positioning.

[0046] The two adjusting pieces 13 make the two arc-shaped conduits 12 rest against each other for positioning, and the multiple connecting screws 31 are rotated vertically downward and drilled into the ground. Then, the multiple locking nuts 32 are threadedly connected to the multiple connecting screws 31. Then, the multiple connecting screws 31 are passed through the multiple connecting holes 14, so that the bottoms of the two arc-shaped conduits 12 rest against the ground for positioning, thereby forming a movable space 35 between the lower surface of the connecting ring 11 and the ground. The movable space 35 is convenient for twisting the locking nuts 2 33; then, the multiple locking nuts 32 are threadedly connected to the multiple connecting screws 31, and a tool is used to detect the verticality of the arc-shaped conduit 12. The tool can be an infrared detector, etc.

[0047] The positions of locking nut 1 32 and locking nut 2 33 are detected and adjusted at the same time, so that when the verticality of the arc-shaped conduit 12 meets the requirement, locking nut 1 32 and locking nut 2 33 are pressed against the upper and lower surfaces of the connecting ring 11 for positioning, so that the two arc-shaped conduits 12 can be fixedly installed in the borehole and the verticality meets the requirement. At this time, the bottom ends of the two arc-shaped conduits 12 are against the ground surface, or the two arc-shaped conduits 12 are partially inserted into the ground surface, so as to facilitate the adjustment of the verticality of the two arc-shaped conduits 12, so that the verticality of the two arc-shaped conduits 12 meets the requirement, and it can also prevent the removed soil from falling into the hole. The bottom of the two arc-shaped conduits 12 is provided with a guide angle for easy insertion into the ground surface.

[0048] Reference Figure 1 and Figure 2 The connecting ring 11 is detachably mounted with a mounting ring 2 through a mounting assembly 4. The mounting ring 2 is coaxially arranged with the connecting ring 11 and has an inner diameter greater than the outer diameter of the drill pipe, i.e., the minimum value of the guide cavity 15. The lower surface of the mounting ring 2 abuts against the top ends of the two arc-shaped guide tubes 12. A plurality of mounting assemblies 4 are arranged in a circular array around the axis of the connecting ring 11, and the array angle is less than 360 degrees, so that the mounting ring 2 and the detection mechanism 5 can only be installed at a specific angle, thereby facilitating the positioning of the installation angle of the detection mechanism 5.

[0049] The mounting assembly 4 includes a mounting rod 41, a positioning block 42 and a positioning screw 43. The mounting rod 41 is fixedly mounted on the lower surface of the mounting ring 2, and the mounting rod 41 is plugged and mounted on the upper surface of the connecting ring 11. The positioning block 42 is fixedly mounted on the bottom of the mounting rod 41 and abuts against the upper surface of the connecting ring 11 for positioning; the positioning screw 43 passes through the positioning block 42 and is threadedly connected to the connecting ring 11 for positioning. Multiple mounting rods 41 are plugged and mounted on the connecting ring 11, and multiple positioning blocks 42 abut against the connecting ring 11 for positioning, and then the positioning screw 43 passes through the positioning block 42 and is threadedly connected to the connecting ring 11 for positioning, so that the mounting ring 2 can be installed and the mounting angle of the mounting ring 2 can be positioned.

[0050] Reference Figure 1-Figure 3 The detection mechanism 5 includes a plurality of arc rings 51 and a plurality of pressure detectors 52. The plurality of arc rings 51 are arranged in a circular array around the axis of the mounting ring 2. Two adjacent arc rings 51 are connected by an elastic component 6, so that the ends of the two adjacent arc rings 51 that are close to each other abut against each other for positioning, and the plurality of arc rings 51 cooperate to form a ring-shaped detection ring body 16. A detection cavity 17 is formed in the detection ring body 16. The axes of the detection cavity 17 and the mounting ring 2 coincide with each other, and the diameter of the detection cavity 17 is greater than or equal to the outer diameter of the drill pipe, that is, the minimum value of the guide cavity 15.

[0051] A support ring 21 is coaxially arranged on the upper surface of the mounting ring 2, and the inner diameter of the support ring 21 is larger than the inner diameter of the mounting ring 2 and the outer diameter is the same as the outer diameter of the mounting ring 2; the arc ring 51 is radially slidably installed on the upper surface of the mounting ring 2 along the mounting ring 2, and the arc ring 51 is located on the inner side of the support ring 21 and the top end extends above the support ring 21, and a shielding ring 53 is coaxially arranged on the outer side wall of the arc ring 51 and rests on the upper surface of the support ring 21, so that the shielding ring 53, the support ring 21 and the mounting ring 2 cooperate to form a closed protective cavity 54.

[0052] Multiple pressure detectors 52 are arranged in a one-to-one correspondence with multiple arc rings 51. The pressure detector 52 is fixedly mounted on the upper surface of the mounting ring 2 and is located in the protective cavity 54 for protection, thereby preventing external debris and soil from contacting the pressure detector 52. The detection element of the pressure detector 52 rests on the outer wall of the arc ring 51 to detect the extrusion pressure of the arc ring 51.

[0053] Both ends of the arc ring 51 are provided with an arc groove 55 connected to the outer wall of the arc ring 51. The elastic component 6 includes two fixing columns 61 and a tension spring 62. The two fixing columns 61 are fixedly installed on the two arc grooves 55 located on the same arc ring 51; both ends of the tension spring 62 are hooked on the two fixing columns 61 located at one end of the two adjacent arc rings 51 close to each other. The tension spring 62 is in a stretched state and makes the two adjacent arc rings 51 abut against each other for positioning.

[0054] The drill rod of the drilling rig passes through the detection cavity 17 and the guide cavity 15 coaxially for drilling. When the drilling rig is skewed during the drilling process, it will approach and push a certain arc ring 51 to move. The movement of the arc ring 51 increases the pressure on the pressure detector 52. The pressure detector 52 transmits the pressure data to the drilling rig. The drilling rig can timely understand the specific data of the skew of the drilling rig based on the pressure data, that is, the position where the pressure change occurs, so as to stop the drilling rig in time to adjust the drilling rig data so that the verticality of the drill rod of the drilling rig meets the requirements. If the pressure data is normal, drilling can be carried out normally without stopping.

[0055] The working principle of the embodiment of the present application is as follows: Prepare the materials used, measure the drilling positions and mark them, drill multiple connecting screws 31 into the ground, install the connecting ring 11 on the multiple connecting screws 31, and use two adjustment members 13 to drive the two arc-shaped guide tubes 12 to lean against each other for positioning. Detect the verticality of the two arc-shaped guide tubes 12, and fix the connecting ring 11 after the verticality of the two arc-shaped guide tubes 12 meets the requirements. The mounting ring 2 and the detection mechanism 5 are fixed to the connecting ring 11 through the mounting assembly 4, and the drilling rig drills through the detection cavity 17 and the guide cavity 15. Therefore, the two arc-shaped guide tubes 12 are used to guide the drill rod of the drilling rig when drilling into the ground, thereby reducing the risk of the drill rod of the drilling rig being skewed.

[0056] When the drill pipe of the drilling rig is drilled into the ground, the two adjusting parts 13 drive the two arc-shaped guide tubes 12 to move away from each other. If the drill pipe of the drilling rig is skewed during the drilling process, the drill pipe of the drilling rig pushes the arc ring 51 to increase the pressure on the pressure detector 52. The pressure data is transmitted to the drilling rig, and the drilling rig data is adjusted in time to make the verticality of the drill pipe meet the requirements. The verticality of the drill pipe of the drilling rig can be detected and adjusted in time, thereby improving the drilling accuracy and construction efficiency at the same time.

[0057] 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 high-efficiency centering drilling construction method for a spiral steel pipe drilling rig, characterized in that: The construction steps include: Preparation: material preparation, measuring and marking drilling positions; Installation: The guide assembly (1) is fixedly installed at the position to be drilled through the connecting assembly (3); an adjustable guide cavity (15) is formed in the guide assembly (1); the verticality of the guide assembly (1) is detected and adjusted so that the verticality of the guide assembly (1) meets the requirements; a detection mechanism (5) for detecting the verticality of the drilling rig is provided on the guide assembly (1); a detection cavity (17) is formed on the detection mechanism (5) which is coaxial with the guide cavity (15) and has the same diameter as the diameter of the drilling rod of the drilling rig; Drilling: The drilling rig is in place, and the drill rod of the drilling rig passes through the guide cavity (15) and the detection cavity (17) to drill a hole. At this time, the diameter of the guide cavity (15) is equal to the diameter of the drill rod of the drilling rig, so that the guide cavity (15) is used to guide the drill rod when drilling into the ground. After the drill rod enters the ground, the guide component (1) increases the diameter of the guide cavity (15), so that when the drill rod is skewed, it squeezes the detection mechanism (5) and does not contact the guide cavity (15). The detection mechanism (5) is used to detect the verticality of the drill rod and issue an alarm; Installation: Install the steel cage and formwork into the hole; Casting: pouring concrete.

2. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 1 is characterized in that: The guide assembly (1) comprises a connecting ring (11), two arc-shaped guide tubes (12) and an adjusting member (13); the connecting assembly (3) and the detection mechanism (5) are arranged on the connecting ring (11); the two arc-shaped guide tubes (12) are slidably arranged on the inner side wall of the connecting ring (11) and their axes coincide with the connecting ring (11); the adjusting member (13) is used to drive the two arc-shaped guide tubes (12) to move closer to or farther from each other; when the drill rod of the drilling rig just enters the ground, the two arc-shaped guide tubes (12) abut against each other for positioning and make the diameter of the guide cavity (15) the same as the diameter of the drill rod of the drilling rig; after the drill rod of the drilling rig enters the ground, the adjusting member (13) drives the two arc-shaped guide tubes (12) to move away from each other and increase the diameter of the guide cavity (15).

3. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 2 is characterized in that: The detection mechanism (5) comprises: A plurality of arc-shaped rings (51) are arranged in a circular array around the axis of the connecting ring (11) and are radially slidably arranged on the connecting ring (11); two adjacent arc-shaped rings (51) are connected via an elastic component (6) and the plurality of arc-shaped rings (51) are abutted against each other and then spliced ​​to form an annular detection ring body (16); the detection cavity (17) is formed by the inner side wall of the detection ring body (16) and the axis thereof coincides with the axis of the connecting ring (11); A plurality of pressure detectors (52) are arranged on the connecting ring (11) and are located on a side of the arc ring (51) away from the axis of the detection ring body (16); the plurality of pressure detectors (52) are arranged in one-to-one correspondence with the plurality of arc rings (51), and the detection elements are pressed against the arc rings (51) and are used to detect pressure.

4. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 3 is characterized in that: The connecting ring (11) is detachably mounted with a mounting ring (2) via a mounting assembly (4); the arc-shaped ring (51) is slidably disposed on the mounting ring (2) and cooperates with the mounting ring (2) to form a protective cavity (54) for mounting a pressure detector (52).

5. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 4 is characterized in that: The installation component (4) comprises: A mounting rod (41) is arranged on the mounting ring (2) and is plugged and mounted on the connecting ring (11) for positioning; A positioning block (42) is arranged on the mounting rod (41) and abuts against the connecting ring (11) for positioning; The positioning screw (43) passes through the positioning block (42) and is threadedly connected to the connecting ring (11) for positioning.

6. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 3 is characterized by: The elastic component (6) comprises: Two fixing columns (61) are arranged on both ends of the arc-shaped ring (51); The tension spring (62) has two ends hooked on two fixing posts (61) located on two adjacent arc-shaped rings (51) and close to each other, and drives the two arc-shaped rings (51) to abut against each other for positioning.

7. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 2 is characterized in that: The connecting ring (11) is provided with a plurality of connecting holes (14) around its axis, and the connecting assembly (3) comprises: A connecting screw (31) passes through the connecting hole (14) and has a diameter smaller than the diameter of the connecting hole (14) and is drilled into the ground surface for positioning; The first locking nut (32) and the second locking nut (33) are threadedly connected to the connecting screw rod (31) and pressed against the upper and lower surfaces of the connecting ring (11) for positioning.

8. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 7 is characterized in that: The bottoms of the two arc-shaped guide tubes (12) are pressed against or inserted into the ground surface and are used to locate and prevent soil from entering the hole and to form a movable space (35) between the lower surface of the connecting ring (11) and the ground surface to facilitate the screwing of the second locking nut (33).

9. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 8 is characterized in that: The bottom of the connecting screw rod (31) is provided with a tip for easy insertion into the ground, and the bottoms of the two arc-shaped guide tubes (12) are provided with guide angles for easy insertion into the ground.

10. The high-efficiency centering drilling construction method of a spiral steel pipe drilling rig according to claim 7, characterized in that: A connecting portion (34) is provided on the top of the connecting screw rod (31) for facilitating connection with an electric tool.

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