Spiral drilling equipment for PHC (prestressed high-strength concrete) pipe pile

Abstract

The invention belongs to the technical field of drilling construction, and discloses PHC tubular pile spiral drilling equipment which comprises a rack, a mounting seat is fixedly mounted in the middle of the top end of the rack, a mounting frame is arranged behind the rack, a fixing seat is fixedly mounted at the top end of the side face of the mounting frame, a mounting shaft is fixedly connected into the mounting seat in a sleeved mode, and the fixing seat is fixedly connected with the mounting shaft in a sleeved mode. And the mounting seat is movably connected with the fixed seat through a mounting shaft. According to the drilling device, the fixed threaded sleeve is arranged and matched with the threaded rod, and the main motor can move up and down under the guiding action of the motor mounting frame, namely, when the threaded rod rotates, the main motor can move up and down while rotating, and finally, the drill rod rotates quickly and moves downwards; the whole process is completed quickly, a hydraulic lifting mechanism is not needed, meanwhile, the whole drilling depth is not limited by the stroke of a hydraulic lifting system, the device is simplified, cost is reduced, and drilling efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of drilling construction, in particular to a PHC pipe pile spiral drilling device. Background Art

[0002] Solar thermal power generation is a technology that uses solar energy to convert light energy into heat energy, and then converts heat energy into electrical energy. Energy collection mainly comes from heliostats. The construction rate of the heliostat infrastructure determines the overall mirror field construction period. Most heliostat piles use PHC pipe piles, which have a large number of pile foundations, high precision requirements, and a short construction period. During the construction of PHC pipe piles, drilling equipment is often used to assist in drilling operations.

[0003] At present, most construction projects use rotary drilling rigs, which have a slow drilling speed and poor hole quality. The rigs mainly consist of a lifting device, a drill rod driving device and a frame. When drilling, this type of drilling equipment generally drives the drill rod to rotate by a driving motor, and drives the drill rod to descend through a hydraulic lifting device to perform the drilling operation of the drill rod. The two driving devices must cooperate with each other to achieve the drilling operation. At the same time, the depth of the entire drilling is related to the stroke of the hydraulic lifting device, and the overall drilling efficiency needs to be improved.

[0004] Since the entire drill rod is easily affected by external forces during the drilling process, which may cause the verticality of the drill rod to deviate, the verticality of the drill rod needs to be adaptively adjusted during the entire drilling process. In the prior art, drilling is generally stopped when verticality deviation occurs, and the verticality adjustment process is achieved by turning the adjustment bolt. The entire adjustment process is relatively complicated, and it is difficult to automatically adjust the verticality of the drill rod when no hole is drilled. Summary of the invention

[0005] The object of the present invention is to provide a PHC pipe pile spiral drilling device to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PHC pipe pile spiral drilling equipment, comprising a frame, a mounting seat is fixedly installed in the middle of the top of the frame, a mounting frame is arranged at the rear of the frame, a fixing seat is fixedly installed at the top position of the side of the mounting frame, a mounting shaft is fixedly sleeved inside the mounting seat, the mounting seat is movably connected to the fixing seat through the mounting shaft, the mounting seat rotates relative to the fixing seat, a locking seat is fixedly connected to the rear end of the mounting frame, the locking seat is connected to the external excavator arm, and the mounting frame is fixedly installed at a position close to one side of the frame. There is an extension plate below the locking seat, and verticality adjustment components are installed on the left and right sides of the inner side of the extension plate, a self-cleaning component is fixedly installed on the bottom end of the inner side of the mounting frame, and extension guide rails are fixedly installed on the left and right sides of the bottom end of the frame, a motor mounting frame is provided below the frame, and extension blocks are fixedly installed on the left and right ends of the motor mounting frame, the motor mounting frame is movably connected with the extension guide rail through the extension block, and the motor mounting frame moves up and down relative to the extension guide rail, a drilling component is fixedly installed on the top of the motor mounting frame, and a column is fixedly installed on the bottom end of the extension guide rail.

[0007] Before actual use, it can be connected to the arm of an external excavator through a locking seat to complete the installation of the device. After installation, the frame and the mounting frame must be kept parallel to each other, and power must be transmitted to the main motor through the external excavator. The hydraulic system of the external excavator is connected to the device to provide power and hydraulic pressure to the device to complete power transmission.

[0008] As a further technical solution of the present invention, a slot is provided inside the column near the top, and a clamping plate is provided between the two columns. The left and right ends of the clamping plate are movably connected to the two slots and can move up and down relative to the slots. A threaded sleeve is fixedly connected to the middle part of the clamping plate and is threadedly connected to the drilling assembly.

[0009] As a further technical solution of the present invention, the side of the column is fixedly connected to a cylinder mounting frame located below the card slot, the top of the cylinder mounting frame is fixedly connected to a second cylinder, and the output end of the second cylinder is connected to the bottom end of the card plate.

[0010] When the drilling depth needs to be adjusted, the second oil cylinder can be opened to push the clamping plate up and down relative to the clamping slot. At this time, the drilling assembly can be driven up and down as a whole through the threaded sleeve. At this time, the main motor and the motor mounting frame at the top can be moved up and down synchronously, so as to compensate for the overall drilling depth and increase the drilling depth.

[0011] As a further technical solution of the present invention, the drilling assembly includes a reducer, the input end of the reducer is connected to the output end of the main motor, a threaded rod is fixedly installed on the output end of the reducer, and the threaded rod is threadedly connected to the threaded sleeve.

[0012] As a further technical solution of the present invention, the bottom end of the threaded rod is fixedly connected to a drill rod located on the inner side of the column, and the outer side of the drill rod is fixedly sleeved with a spiral conveying blade.

[0013] When drilling operation is required, the main motor can be turned on, and the main motor will transmit power to the reducer and then to the threaded rod. The threaded rod will rotate accordingly. Since the threaded sleeve is in a relatively fixed state, the threaded rod can rotate and move downward at the same time, which can drive the drill rod at the bottom to screw downward, quickly drill holes through the drill rod, and discharge soil through the spiral conveying blades to complete the rapid drilling operation.

[0014] By setting a fixed threaded sleeve and matching it with the threaded rod, since the main motor can move up and down under the guidance of the motor mounting frame, that is, when the threaded rod rotates, it can move up and down while rotating, and finally the drill rod can be quickly rotated and moved downward. The whole process is completed quickly without setting up a hydraulic lifting mechanism. At the same time, the entire drilling depth is not limited by the stroke of the hydraulic lifting system, which simplifies the device, reduces costs and improves drilling efficiency.

[0015] As a further technical solution of the present invention, the verticality adjustment assembly includes a connecting seat, which is fixedly connected to the inner side of the extension plate, and one end of the connecting seat away from the extension plate is movably connected to a mounting block via a rotating shaft, and one end of the mounting block is fixedly connected to the first oil cylinder.

[0016] As a further technical solution of the present invention, the output end of the first oil cylinder is fixedly connected to a magnetic block located on one side of the column, and when the frame and the mounting frame are parallel to each other, the magnetic block and the column are not in contact.

[0017] Before drilling, the frame and the mounting frame can be kept in a stationary state, that is, the excavator arm at one end of the mounting frame can be kept in a stationary state. At this time, the frame can automatically maintain a vertical state with the ground due to the action of the vertical line under the action of gravity. When the bottom end of the frame is in a stationary state, the verticality adjustment process can be completed. If the verticality needs to be adjusted during the drilling process, the first oil cylinder can be opened. At this time, the magnetic block can be pushed to move toward the column until it is mutually adsorbed with the column. At this time, the magnetic block can be continued to be pushed. At this time, the mounting seat at the top rotates relative to the fixed seat, and the drilling assembly at the bottom can rotate synchronously to complete the verticality adjustment process.

[0018] By flexibly connecting the mounting base and the fixing base and utilizing the vertical line characteristics, the drilling assembly can adjust its verticality by itself before drilling. The entire process only requires the device to be kept stationary, and there is no need to perform a complicated verticality adjustment process before drilling. At the same time, the verticality can be dynamically adjusted during the drilling process without stopping the drilling assembly, thus simplifying the adjustment process and improving the drilling accuracy.

[0019] As a further technical solution of the present invention, the self-cleaning component includes a dust cover, which is fixedly connected to the bottom end of the inner side surface of the mounting frame, the inner side surface of the dust cover is located on the outer side surface of the spiral conveying blade, and the bottom end of the dust cover is on the same horizontal plane as the bottom end of the column.

[0020] As a further technical solution of the present invention, a cleaning brush is fixedly connected to the middle of the inner side of the dust cover, and when the column and the mounting frame are parallel to each other, the outer side of the cleaning brush does not contact the outer side of the spiral conveying blade.

[0021] When the drilling is completed, the main motor can be turned on in reverse to drive the spiral conveying blade to move upward. At this time, the verticality adjustment component can be turned on, and after it is adsorbed to the column, the column is pulled to move toward the cleaning brush until the outer side surface of the spiral conveying blade contacts the outer side surface of the cleaning brush. At this time, the rotation of the spiral conveying blade can generate friction with the cleaning brush. At this time, the outer side of the spiral conveying blade can be automatically cleaned through friction. After cleaning, the adsorption of the verticality adjustment component and the column can be released.

[0022] By utilizing the adsorption process between the verticality adjustment component and the column, the verticality of the drilling component can be dynamically adjusted. The verticality adjustment component can also be used to act on the column to make the drilling component and the self-cleaning component contact each other. By coordinating the reverse rotation and upward displacement of the drilling component, the drilling component after drilling can be automatically cleaned. The whole process is completed automatically, which can reduce the problem of manual regular cleaning of traditional devices and improve the overall drilling efficiency.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The present invention sets a fixed threaded sleeve and cooperates it with the threaded rod. Since the main motor can move up and down under the guidance of the motor mounting frame, that is, when the threaded rod rotates, it can move up and down while rotating, and finally the drill rod can be quickly rotated and moved downward. The whole process is completed quickly without setting a hydraulic lifting mechanism. At the same time, the entire drilling depth is not limited by the stroke of the hydraulic lifting system, which simplifies the device, reduces costs and improves drilling efficiency.

[0025] 2. The present invention flexibly connects the mounting base and the fixing base and utilizes the vertical line characteristics so that the drilling assembly can adjust its verticality by itself before drilling. The entire process only requires the device to be kept stationary, and there is no need to perform a complicated verticality adjustment process before drilling. At the same time, the verticality can be dynamically adjusted during the drilling process without stopping the drilling assembly, thereby simplifying the adjustment process and improving the drilling accuracy.

[0026] 3. The present invention realizes the dynamic vertical adjustment process of the drilling assembly by utilizing the adsorption process of the verticality adjustment assembly and the column. The verticality adjustment assembly can also be used to make the drilling assembly and the self-cleaning assembly contact each other. By coordinating the reverse rotation and upward displacement of the drilling assembly, the drilling assembly after drilling can be automatically cleaned. The whole process is completed automatically, which can reduce the problem of manual regular cleaning of traditional devices and improve the overall drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is an exploded schematic diagram of the rack and mounting frame structure of the present invention;

[0029] Figure 3 It is a separate schematic diagram of the structure near the mounting frame of the present invention;

[0030] Figure 4 It is a separate schematic diagram of the bottom end structure of the frame of the present invention;

[0031] Figure 5 A separate schematic diagram of the drilling assembly structure of the present invention;

[0032] Figure 6 It is an exploded schematic diagram of the decoupling unit of the extended guide rail and the motor mounting frame of the present invention;

[0033] Figure 7 It is an exploded schematic diagram of the card slot and card block structure of the present invention;

[0034] Figure 8 for Figure 3 A magnified schematic diagram of the structure in the middle.

[0035] In the figure: 1. frame; 2. mounting base; 3. mounting frame; 4. fixing base; 5. mounting shaft; 6. locking base; 7. extension plate; 8. vertical adjustment assembly; 801. connecting base; 802. first oil cylinder; 803. magnetic block; 9. self-cleaning assembly; 901. dust cover; 902. cleaning brush; 10. extension guide rail; 11. motor mounting frame; 12. main motor; 13. extension block; 14. drilling assembly; 141. reducer; 142. threaded rod; 143. drill rod; 144. spiral conveying blade; 15. column; 16. slot; 17. clamping plate; 18. threaded sleeve; 19. oil cylinder mounting frame; 20. second oil cylinder. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figures 1 to 8 As shown, in the embodiment of the present invention, a PHC pile spiral drilling device includes a frame 1, a mounting seat 2 is fixedly installed in the middle of the top of the frame 1, a mounting frame 3 is provided at the rear of the frame 1, a fixing seat 4 is fixedly installed at the top position of the side of the mounting frame 3, a mounting shaft 5 is fixedly sleeved inside the mounting seat 2, the mounting seat 2 is movably connected to the fixing seat 4 through the mounting shaft 5, the mounting seat 2 rotates relative to the fixing seat 4, a locking seat 6 is fixedly connected to the rear end of the mounting frame 3, the locking seat 6 is connected to the external excavator arm, and an extension plate 7 below the locking seat 6 is fixedly installed at a position of the mounting frame 3 close to one side of the frame 1 , verticality adjustment components 8 are installed on the left and right sides of the inner side of the extension plate 7, a self-cleaning component 9 is fixedly installed on the bottom end of the inner side of the mounting frame 3, and extension guide rails 10 are fixedly installed on the left and right sides of the bottom end of the frame 1. A motor mounting frame 11 is provided below the frame 1, and extension blocks 13 are fixedly installed on the left and right ends of the motor mounting frame 11. The motor mounting frame 11 is movably connected with the extension guide rail 10 through the extension block 13, and the motor mounting frame 11 moves up and down relative to the extension guide rail 10. A drilling component 14 is fixedly installed on the top of the motor mounting frame 11, and a column 15 is fixedly installed on the bottom end of the extension guide rail 10.

[0038] Before actual use, it can be connected to the arm of an external excavator through a locking seat 6 to complete the installation of the device. After the installation is completed, the frame 1 and the mounting frame 3 must be kept in parallel with each other, and power must be transmitted to the main motor 12 through the external excavator. The hydraulic system of the external excavator is connected to the device to provide power and hydraulic pressure for the device to complete power transmission.

[0039] like Figure 4 and Figure 6 as well as Figure 7 As shown, a slot 16 is provided inside the column 15 near the top, and a clamping plate 17 is provided between the two columns 15. The left and right ends of the clamping plate 17 are movably connected to the two slots 16 and can move up and down relative to the slots 16. A threaded sleeve 18 is fixedly connected to the middle of the clamping plate 17 and is threadedly connected to the drilling assembly 14. A cylinder mounting frame 19 located below the slot 16 is fixedly connected to the side of the column 15. A second cylinder 20 is fixedly connected to the top of the cylinder mounting frame 19, and the output end of the second cylinder 20 is connected to the bottom end of the clamping plate 17.

[0040] When the drilling depth needs to be adjusted, the second oil cylinder 20 can be opened to push the clamping plate 17 to move up and down relative to the clamping slot 16. At this time, the drilling assembly 14 can be driven to move up and down as a whole through the threaded sleeve 18. At this time, the main motor 12 and the motor mounting bracket 11 at the top can move up and down synchronously, so as to compensate for the overall drilling depth and increase the drilling depth.

[0041] like Figure 2 and Figure 4 as well as Figure 5 As shown, the drilling assembly 14 includes a reducer 141, the input end of the reducer 141 is connected to the output end of the main motor 12, a threaded rod 142 is fixedly installed on the output end of the reducer 141, the threaded rod 142 and the threaded sleeve 18 are threadedly sleeved, the bottom end of the threaded rod 142 is fixedly connected to a drill rod 143 located on the inner side of the column 15, and a spiral conveying blade 144 is fixedly sleeved on the outer side of the drill rod 143.

[0042] Embodiment: When drilling operation is required, the main motor 12 can be turned on, and the main motor 12 will then transmit power to the reducer 141, and then transmit power to the threaded rod 142. At this time, the threaded rod 142 will rotate accordingly. Since the threaded sleeve 18 is in a relatively fixed state, the threaded rod 142 can rotate and move downward at the same time, and then the drill rod 143 at the bottom can be driven to screw downward, and the drill rod 143 can be used to quickly drill holes, and the soil can be discharged through the spiral conveying blades 144 to complete the rapid drilling operation.

[0043] By setting a fixed threaded sleeve 18 and matching it with the threaded rod 142, since the main motor 12 can move up and down under the guidance of the motor mounting frame 11, that is, when the threaded rod 142 rotates, it can achieve simultaneous rotation and up and down movement, and finally the drill rod 143 can be quickly rotated and moved downward. The whole process is completed quickly without the need to set up a hydraulic lifting mechanism. At the same time, the entire drilling depth is not limited by the stroke of the hydraulic lifting system, which simplifies the device, reduces costs and improves drilling efficiency.

[0044] like Figure 1 and Figure 2 as well as Figure 3 and Figure 8 As shown, the verticality adjustment assembly 8 includes a connecting seat 801, which is fixedly connected to the inner side of the extension plate 7, and the end of the connecting seat 801 away from the extension plate 7 is movably connected to a mounting block through a rotating shaft, and one end of the mounting block is fixedly connected to a first oil cylinder 802, and the output end of the first oil cylinder 802 is fixedly connected to a magnetic block 803 located on one side of the column 15. When the frame 1 and the mounting frame 3 are parallel to each other, the magnetic block 803 does not contact the column 15.

[0045] Embodiment: Before drilling, the frame 1 and the mounting frame 3 can be kept in a stationary state, that is, the excavator arm at one end of the mounting frame 3 can be kept in a stationary state. At this time, the frame 1 can automatically maintain a vertical state with the ground due to the action of the vertical line under the action of gravity. When the bottom end of the frame 1 is in a stationary state, the verticality adjustment process can be completed. If the verticality needs to be adjusted during the drilling process, the first oil cylinder 802 can be opened. At this time, the magnetic block 803 can be pushed to move toward the column 15 until it is mutually adsorbed with the column 15. At this time, the magnetic block 803 can be continued to be pushed. At this time, the mounting seat 2 at the top rotates relative to the fixed seat 4, and the drilling assembly 14 at the bottom can rotate synchronously to complete the verticality adjustment process.

[0046] By flexibly connecting the mounting base 2 and the fixing base 4 and utilizing the vertical line characteristic, the drilling assembly 14 can adjust its verticality by itself before drilling. The entire process only requires the device to be kept stationary, and there is no need to perform a complicated verticality adjustment process before drilling. At the same time, the verticality can be dynamically adjusted during the drilling process, and there is no need to shut down the drilling assembly 14, thereby simplifying the adjustment process and improving the drilling accuracy.

[0047] like Figure 1 and Figure 2 as well as Figure 3 As shown, the self-cleaning component 9 includes a dust cover 901, which is fixedly connected to the bottom end of the inner side surface of the mounting frame 3, the inner side surface of the dust cover 901 is located on the outer side surface of the spiral conveying blade 144, the bottom end of the dust cover 901 and the bottom end of the column 15 are on the same horizontal plane, and a cleaning brush 902 is fixedly connected to the middle part of the inner side surface of the dust cover 901. When the column 15 and the mounting frame 3 are parallel to each other, the outer side surface of the cleaning brush 902 does not contact the outer side surface of the spiral conveying blade 144.

[0048] When the drilling is completed, the main motor 12 can be turned on in reverse to drive the spiral conveying blade 144 to move upward. At this time, the verticality adjustment component 8 can be turned on, and it and the column 15 are adsorbed against each other, and the column 15 is pulled to move in the direction close to the cleaning brush 902 until the outer side surface of the spiral conveying blade 144 contacts the outer side surface of the cleaning brush 902. At this time, the rotation of the spiral conveying blade 144 can generate friction with the cleaning brush 902. At this time, the outer side surface of the spiral conveying blade 144 can be automatically cleaned by friction. After cleaning, the adsorption of the verticality adjustment component 8 and the column 15 can be released.

[0049] By utilizing the adsorption process of the verticality adjustment component 8 and the column 15, the verticality of the drilling component 14 can be dynamically adjusted. The verticality adjustment component 8 can also be used to act on the column 15 to make the drilling component 14 and the self-cleaning component 9 contact each other. In conjunction with the reverse rotation and upward displacement of the drilling component 14, the drilling component 14 can be automatically cleaned after drilling. The entire process is completed automatically, which can reduce the problem of manual regular cleaning of traditional devices and improve the overall drilling efficiency.

[0050] Working principle and usage process:

[0051] Before use, the device can be connected to the arm of the external excavator through the locking seat 6 to complete the installation of the device. After the installation is completed, the frame 1 and the mounting frame 3 must be kept parallel to each other, and power must be transmitted to the main motor 12 through the external excavator, and the hydraulic system of the external excavator must be connected to the device to provide power and hydraulic pressure for the device to complete power transmission;

[0052] When the drilling depth needs to be adjusted, the second oil cylinder 20 can be turned on to push the clamping plate 17 to move up and down relative to the clamping slot 16. At this time, the threaded sleeve 18 can drive the drilling assembly 14 to move up and down as a whole. At this time, the main motor 12 and the motor mounting frame 11 at the top can move up and down synchronously, so as to compensate for the overall drilling depth and increase the drilling depth.

[0053] When drilling operation is required, the main motor 12 can be turned on, and the main motor 12 transmits power to the reducer 141, and then transmits power to the threaded rod 142, and the threaded rod 142 rotates accordingly. Since the threaded sleeve 18 is in a relatively fixed state, the threaded rod 142 can rotate and move downward at the same time, and then the drill rod 143 at the bottom can be driven to screw downward, and the drill rod 143 is used to quickly drill holes, and the soil is discharged through the spiral conveying blade 144 to complete the rapid drilling operation;

[0054] Before drilling, the frame 1 and the mounting frame 3 can be kept in a stationary state, that is, the excavator arm at one end of the mounting frame 3 can be kept in a stationary state. At this time, the frame 1 can automatically maintain a vertical state with the ground due to the effect of the vertical line under the action of gravity. When the bottom end of the frame 1 is in a stationary state, the vertical adjustment process can be completed. If the verticality needs to be adjusted during the drilling process, the first oil cylinder 802 can be opened, and the magnetic block 803 can be pushed to move toward the column 15 until it is mutually adsorbed with the column 15. At this time, the magnetic block 803 can be continued to be pushed, and the mounting seat 2 at the top rotates relative to the fixed seat 4, and the drilling assembly 14 at the bottom can rotate synchronously to complete the vertical adjustment process;

[0055] When the drilling is completed, the main motor 12 can be turned on in reverse to drive the spiral conveying blade 144 to move upward. At this time, the verticality adjustment component 8 can be turned on, and it and the column 15 are adsorbed against each other, and the column 15 is pulled to move in the direction close to the cleaning brush 902 until the outer side surface of the spiral conveying blade 144 contacts the outer side surface of the cleaning brush 902. At this time, the rotation of the spiral conveying blade 144 can generate friction with the cleaning brush 902. At this time, the outer side surface of the spiral conveying blade 144 can be automatically cleaned by friction. After cleaning, the adsorption of the verticality adjustment component 8 and the column 15 can be released.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PHC pile spiral drilling device, comprising a frame (1), characterized in that: A mounting seat (2) is fixedly installed in the middle of the top of the frame (1), a mounting frame (3) is provided at the rear of the frame (1), a fixing seat (4) is fixedly installed at the top position of the side of the mounting frame (3), a mounting shaft (5) is fixedly sleeved inside the mounting seat (2), the mounting seat (2) is movably connected to the fixing seat (4) through the mounting shaft (5), the mounting seat (2) rotates relative to the fixing seat (4), a locking seat (6) is fixedly connected to the rear end of the mounting frame (3), the locking seat (6) is connected to the external excavator boom, an extension plate (7) below the locking seat (6) is fixedly installed at a position of the mounting frame (3) close to one side of the frame (1), and the left and right inner sides of the extension plate (7) are A verticality adjustment component (8) is installed on both sides, a self-cleaning component (9) is fixedly installed on the bottom end of the inner side surface of the mounting frame (3), and an extension guide rail (10) is fixedly installed on the left and right sides of the bottom end of the frame (1). A motor mounting frame (11) is provided below the frame (1), and an extension clamping block (13) is fixedly installed on the left and right ends of the motor mounting frame (11). The motor mounting frame (11) is movably connected to the extension guide rail (10) through the extension clamping block (13), and the motor mounting frame (11) moves up and down relative to the extension guide rail (10). A drilling component (14) is fixedly installed on the top end of the motor mounting frame (11), and a column (15) is fixedly installed on the bottom end of the extension guide rail (10).

2. A PHC pile spiral drilling equipment according to claim 1, characterized in that: A clamping groove (16) is provided inside the column (15) near the top end, and a clamping plate (17) is provided between the two columns (15). The left and right ends of the clamping plate (17) are movably clamped with the two clamping grooves (16) and can move up and down relative to the clamping grooves (16). A threaded sleeve (18) is fixedly connected to the middle part of the clamping plate (17) and is threadedly connected to the drilling assembly (14).

3. A PHC pile spiral drilling equipment according to claim 2, characterized in that: The side of the column (15) is fixedly connected to a cylinder mounting frame (19) located below the card slot (16), the top of the cylinder mounting frame (19) is fixedly connected to a second cylinder (20), and the output end of the second cylinder (20) is connected to the bottom end of the card plate (17).

4. The PHC pile spiral drilling equipment according to claim 3 is characterized by: The drilling assembly (14) comprises a reducer (141), the input end of the reducer (141) is connected to the output end of the main motor (12), a threaded rod (142) is fixedly mounted on the output end of the reducer (141), and the threaded rod (142) is threadedly sleeved with a threaded sleeve (18).

5. The PHC pile spiral drilling equipment according to claim 4, characterized in that: The bottom end of the threaded rod (142) is fixedly connected to a drill rod (143) located on the inner side of the column (15), and the outer side of the drill rod (143) is fixedly sleeved with a spiral conveying blade (144).

6. A PHC pile spiral drilling equipment according to claim 5, characterized in that: The verticality adjustment assembly (8) comprises a connecting seat (801), wherein the connecting seat (801) is fixedly connected to the inner side surface of the extension plate (7), and one end of the connecting seat (801) away from the extension plate (7) is movably connected to a mounting block via a rotating shaft, and one end of the mounting block is fixedly connected to a first oil cylinder (802).

7. A PHC pile spiral drilling equipment according to claim 6, characterized in that: The output end of the first oil cylinder (802) is fixedly connected to a magnetic block (803) located on one side of the column (15); when the frame (1) and the mounting frame (3) are parallel to each other, the magnetic block (803) and the column (15) are not in contact.

8. The PHC pile spiral drilling equipment according to claim 7, characterized in that: The self-cleaning component (9) comprises a dust cover (901), the dust cover (901) being fixedly connected to the bottom end of the inner side surface of the mounting frame (3), the inner side surface of the dust cover (901) being located on the outer side surface of the spiral conveying blade (144), and the bottom end of the dust cover (901) being located on the same horizontal plane as the bottom end of the column (15).

9. The PHC pile spiral drilling equipment according to claim 8, characterized in that: A cleaning brush (902) is fixedly connected to the middle of the inner side of the dust shield (901), and when the upright post (15) and the mounting frame (3) are parallel to each other, the outer side of the cleaning brush (902) does not contact the outer side of the spiral conveying blade (144).

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