Hollow steel column installation auxiliary device of a light heat heliostat and installation method

Abstract

The application provides a hollow steel column mounting auxiliary device and mounting method of a light heat heliostat, which comprises a first auxiliary mechanism and a second auxiliary mechanism; the second auxiliary mechanism comprises a flange carrier disc; the flange carrier disc is placed on a welding flange at the top of the hollow steel column, the flange carrier disc is fixedly installed with a cross carrier, and an RTK main machine and a laser emitter are arranged on the cross carrier; a plurality of conical positioning pins are fixedly installed in an annular array at the bottom of the flange carrier disc, and the conical positioning pins are inserted into threaded holes on the welding flange; a bottom cylinder is sleeved with an outer sliding of a movable cylinder, the top end of the movable cylinder is connected with the flange carrier disc, and a lifting mechanism is installed in the bottom cylinder; a pressing mechanism is arranged on the conical positioning pin. By arranging the bottom cylinder, the movable cylinder and the lifting mechanism, the movable cylinder is extended out of the bottom cylinder to elevate the flange carrier disc and the structure on the flange carrier disc, so that the second auxiliary mechanism is operated on the ground, and climbing measurement positioning is avoided.

Description

Technical Field

[0001] This invention relates to the field of hollow steel column installation, and particularly to auxiliary devices and installation methods for hollow steel columns of solar thermal heliostats. Background Technology

[0002] In large-scale solar thermal power generation heliostat fields, the control of parameters such as center coordinates, azimuth angle, and verticality is particularly important when installing tens of thousands of heliostat columns. Excessive deviation in center coordinates will not only increase the difficulty of subsequent field commissioning, but will also directly affect the power generation efficiency after commissioning. Excessive deviation in azimuth angle will directly affect the aesthetics of the heliostat after installation and the efficiency of subsequent commissioning.

[0003] Currently, the installation of mirror field columns in solar thermal projects mostly relies on compasses, plumb bobs, and RTK (Real-Time Kinematic) methods for assistance, lacking specialized auxiliary devices, which compromises installation efficiency. Furthermore, the auxiliary installation of steel columns requires climbing to measure and position the columns, which is inconvenient and poses a risk of fall. Summary of the Invention

[0004] In order to solve the technical problem of how to facilitate measurement and positioning, the present invention provides an auxiliary device and method for installing a hollow steel column of a photothermal heliostat.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions:

[0006] This invention provides an auxiliary device for installing a hollow steel column of a photothermal heliostat, comprising a first auxiliary mechanism and a second auxiliary mechanism. The first auxiliary mechanism includes a semi-circular locking flange, the inner side of which is fitted to the circumference of the hollow steel column. Support arms one, two, and three are fixedly installed on both sides and the middle portion of the semi-circular locking flange, respectively. The second auxiliary mechanism includes a flange carrier plate, which is placed on a welded flange at the top of the hollow steel column. A cross-shaped support frame is fixedly installed on the flange carrier plate, and an RTK host and a laser emitter are mounted on the cross-shaped support frame. Multiple tapered positioning pins are fixedly installed in a circular array at the bottom of the flange carrier plate, and these pins are inserted into threaded holes on the welded flange. A movable cylinder is slidably fitted with a bottom cylinder. The top of the movable cylinder is connected to the flange carrier plate, and a lifting mechanism is installed inside the bottom cylinder. The lifting mechanism includes a screw and a nut seat threaded onto the screw, the nut seat being inserted into the bottom of the movable cylinder. The lifting mechanism is used to drive the movable cylinder to retract into or extend out of the bottom cylinder. A clamping mechanism is provided on a tapered positioning pin and is connected to a drive mechanism, which is installed on the flange carrier plate. The drive mechanism is connected to a first round shaft, which extends into a round hole opened at the axis of the screw. A mating plate and a mating block are respectively installed on the inner side of the bottom end of the first round shaft and the top end of the screw. The lifting mechanism drives the movable cylinder to extend out of the bottom cylinder, and the mating plate is close to the mating block. A height adjustment mechanism is installed at the bottom of the lifting mechanism.

[0007] Preferably, the included angle between support arm one and support arm three, and the included angle between support arm two and support arm three are both 90°; support frames are fixedly installed between support arm one and support arm three, and between support arm two and support arm three; positioning holes are opened on support arm one, support arm two and support arm three, and steel rods are inserted into the positioning holes.

[0008] Preferably, the center point of the cross-shaped carrier coincides with the center of the welding flange; a bolt connector is fixedly installed on the center point of the cross-shaped carrier; the RTK host is installed on the bolt connector; a bracket is provided on the cross-shaped carrier, one end of the bracket is fixed to the welding flange, and the other end is fixed to the cross-shaped carrier; the laser emitter is installed on the bracket.

[0009] Preferably, the clamping mechanism includes a connecting column; a pressing block is fixed at the bottom end of the connecting column, the pressing block is located in the inner cavity opened in the conical positioning pin, the pressing block is an inverted isosceles trapezoidal block, movable seats are provided on both sides of the pressing block, guide grooves are opened on both sides of the conical positioning pin, the movable seats are slidably sleeved with the guide grooves, the movable seats are elastically connected to the inner cavity sidewall through a first spring, the movable seats are provided with guide holes, and pressure seats are inserted into the guide holes, the pressure seats are elastically connected to the movable seats through a second spring.

[0010] Preferably, a top seat is fixedly installed on one side of the flange carrier, and the top seat is fixed to the top of the movable cylinder. The driving mechanism includes a protective cover fixedly installed on the top seat and a movable disc fixed to the connecting column. A rotating shaft and a second pulley are rotatably installed inside the protective cover. A first pulley is fixedly sleeved on the rotating shaft. A synchronous belt is wound between the first pulley and the second pulley. A square shaft is fixedly installed at the center of the second pulley. A fixing nut is fixedly installed on the top seat. A stud is threadedly connected to the fixing nut. A square hole is opened at the center of the stud. The square hole is slidably sleeved with the square shaft. The bottom end of the stud is rotatably connected to the movable disc. A guide post is fixedly installed on the movable disc. The guide post is slidably sleeved with a hole opened on the top seat. A stop is provided at the top of the guide post, and the stop is fixedly installed inside the protective cover. The bottom end of the rotating shaft is fixedly connected to a first round shaft, and the first round shaft is rotatably connected to the top seat.

[0011] Preferably, the lifting mechanism further includes a carrier; the bottom end of the screw is rotatably mounted to the carrier, and a second round shaft is fixed to the bottom end of the screw. The second round shaft passes through a circular groove opened at the bottom of the bottom cylinder, and a turntable is fixed to one end of the second round shaft extending outside the bottom of the bottom cylinder; a socket is provided on the top of the nut seat; a base is fixedly installed at the bottom end of the movable cylinder, and a slot for insertion into the socket is opened in the middle of the base; a first guide sleeve is fixedly installed at the top of the bottom cylinder, and the first guide sleeve is located above the base. The movable cylinder and the first guide sleeve are slidably sleeved together; a stop block is fixed on the inner groove wall at the bottom of the bottom cylinder.

[0012] Preferably, the height adjustment mechanism includes side seats fixedly installed on both sides of the top of the carrier and a plug-in installation assembly; the side seats are located below the stop block, and a groove is opened on one side of the side seats; the plug-in installation assembly includes a second guide sleeve fixedly connected to the side wall of the bottom cylinder; a plug-in block is slidably installed in the second guide sleeve and inserted into the groove; a third spring is provided in the second guide sleeve; the plug-in block is elastically connected to the inner side wall of the second guide sleeve through the third spring; a pull rod is fixed to the plug-in block and the pull rod extends to the outside of the second guide sleeve.

[0013] Preferably, the top end of the screw has a circular groove communicating with the circular hole, and the diameter of the circular groove is smaller than the diameter of the circular hole; the first circular shaft passes through the circular groove; the mating disc includes a disc body that is clearance-fitted into the circular hole, the top surface of the disc body has an annular groove, and multiple spacers are fixed in a circular array in the annular groove, the annular groove is divided into multiple arc-shaped grooves by the spacers; the mating plug includes a block body; the top surface of the circular hole has a top groove; the block body is slidably sleeved with the top groove, and a fourth spring is provided in the top groove, the block body is elastically connected to the top groove wall by the fourth spring.

[0014] Preferably, it further includes an oil injection assembly, which includes an oil box and a cylinder. The oil box and the cylinder are both fixed to the top back side of the bottom cylinder. A first one-way valve and a second one-way valve are installed on the top of the cylinder. The first one-way valve is connected to the oil box through a first pipe, and one end of the first pipe extends into the bottom of the oil box. An annular cavity is opened in the first guide sleeve. Several evenly distributed oil outlet holes are opened on the inner wall of the first guide sleeve, and the oil outlet holes communicate with the annular cavity. The second one-way valve is connected to the annular cavity through a second pipe. A piston is connected to the cylinder, and the piston is connected to a connecting rod. The bottom end of the connecting rod passes through a side groove opened at the bottom back side of the bottom cylinder, and the bottom end of the connecting rod is fixed to the carrier.

[0015] The present invention also provides a method for installing a hollow steel column for a photothermal heliostat, the method comprising the following steps:

[0016] 1. Use the RTK host to lay out the center coordinates of the hollow steel column, and lay out the center coordinates and the points in the due east and due west directions at the same time to achieve "three points in one line", and fix the marker stakes.

[0017] 2. Based on the marked center coordinates of the steel column, the drilling rig travels to the designated location and makes preliminary adjustments to the position of the drill rod; the drill rod is erected vertically and the marked position is found; the angle of the drill rod is adjusted to keep it vertical, and a spirit level is used for auxiliary measurement. Once the drilling rig is in place, drilling begins. The error between the center of the drill rod and the mark is less than ±30mm. After the hole is formed, attention should be paid to the protection of the finished markers in the due east and due west directions. The markers must not be buried or damaged.

[0018] 3. Install the first auxiliary mechanism, aligning the center lines of support arm one and support arm two with the two ends of the marker stakes fixed in the due east and due west directions when laying out the center coordinate points of the steel column, ensuring that the center point of the semi-circular locking flange is in the same position as the design center coordinates of the steel column, and then drive the steel chisel into the positioning hole to fix the first auxiliary mechanism.

[0019] 4. Transfer and hoist the hollow steel column, slowly place it into the hole, and place the hollow steel column close to the inside of the semi-circular locking flange. Use two horizontal straightedges to attach to the outer surface of the hollow steel column at 90° angles, adjust the verticality and horizontality of the hollow steel column, and complete the preliminary alignment of the center coordinates of the steel column.

[0020] 5. After turning on the RTK host and verifying that everything is correct, install it onto the fixing bolt connector in the center of the cross bracket, turn on the laser emitter, and place the flange carrier plate onto the welding flange. Insert the tapered locating pin into the bolt hole of the welding flange so that the laser emitter and the cut surface on the side of the welding flange are on the same straight line.

[0021] 6. Use a clamp to rotate the hollow steel column so that the laser beam emitted by the laser emitter hits the steel column's design azimuth marker or the extended line of the marker, thereby ensuring that the steel column's installation azimuth meets the design requirements. At the same time, based on RTK real-time data, adjust the center of the hollow steel column to coincide with the design center coordinate point, and complete the rapid and accurate alignment of the steel column's center coordinates and installation azimuth.

[0022] 7. Pour concrete into the hole and vibrate it with a vibrator. When using the vibrator, it should be extended to the bottom. When inserting it, insert it quickly and withdraw it slowly to meet the vibration time. Vibrate in three directions at the same time. After pouring, the concrete should be flush with the ground. During the concrete pouring and vibration process, the RTK host can be used to monitor in real time whether the steel column is displaced due to the pouring and vibration of the concrete, and then make adjustments accordingly.

[0023] 8. After the pouring is completed, use the RTK host to measure the actual coordinates, elevation and azimuth data, and check the verticality and horizontality of the column by observing the bubble of the horizontal ruler to see if it meets the design requirements. If there are any errors, they need to be adjusted before the concrete solidifies to ensure that all parameters are within the design range. After confirming that there are no errors, use square timber for support to prevent displacement, and the steel column installation work is completed.

[0024] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0025] The positive and progressive effects of this invention are as follows:

[0026] The aforementioned auxiliary device and installation method for the hollow steel column of the photothermal heliostat, by setting up a base cylinder, a movable cylinder and a lifting mechanism, allows the movable cylinder to extend from the base cylinder to elevate the flange carrier and the structure on the flange carrier, enabling the operation of the second auxiliary mechanism on the ground, avoiding the need for climbing to measure and position. After the auxiliary installation, the movable cylinder can be stored in the base cylinder, avoiding occupying too much storage space.

[0027] The RTK host and laser emitter in the first and second auxiliary mechanisms enable quick and effective alignment of the center coordinates and azimuth angle during the installation of hollow steel columns, ensuring the accuracy of the center and azimuth angles, greatly improving construction efficiency and quality, and thus facilitating the large-scale and rapid construction needs of heliostat fields.

[0028] By setting a tapered locating pin on the flange carrier and a clamping mechanism inside the tapered locating pin, the flange carrier is placed on the welded flange. The tapered locating pin is inserted into the threaded hole for positioning, and at the same time, the clamping mechanism clamps the side wall of the threaded hole for clamping, which improves the stability of placement and makes it less likely to detach. Attached Figure Description

[0029] Figure 1This is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of the first auxiliary mechanism of the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of the second auxiliary mechanism of the present invention.

[0032] Figure 4 This is a schematic diagram of the top of the flange carrier and the drive mechanism of the present invention.

[0033] Figure 5 This is a schematic diagram of the internal structure of the tapered positioning pin of the present invention.

[0034] Figure 6 For the present invention Figure 5 Enlarged structural diagram of section A in the middle.

[0035] Figure 7 This is a schematic diagram of the internal structure of the bottom cylinder of the present invention.

[0036] Figure 8 For the present invention Figure 7 Enlarged structural diagram of section B in the middle.

[0037] Figure 9 For the present invention Figure 7 Enlarged structural diagram of section C.

[0038] Figure 10 This is a structural schematic diagram of the connection state between the docking plate and the docking plug of the present invention.

[0039] Figure 11 This is a schematic diagram of the structure of the docking plate of the present invention.

[0040] Figure 12 This is a schematic diagram of the screw and mating block of the present invention.

[0041] Figure 13 This is a schematic diagram of the structure of the back side of the bottom cylinder of the present invention.

[0042] Figure 14 For the present invention Figure 13 Enlarged structural diagram of section D in the middle.

[0043] Figure 15 This is a schematic diagram of the oil injection assembly of the present invention.

[0044] Figure 16 This is a schematic diagram of the structure of the welding flange of the present invention.

[0045] Explanation of reference numerals in the attached figures

[0046] 1. First Auxiliary Mechanism; 101. Semi-circular locking flange; 102. Support arm one; 103. Support arm two; 104. Support arm three; 105. Support frame; 106. Steel chisel; 107. Positioning hole; 2. Second Auxiliary Mechanism; 201. Bottom cylinder; 2011. First guide sleeve; 2012. Annular cavity; 2013. Oil outlet; 2014. Stop block; 2015. Side groove; 202. Movable cylinder; 2021. Base; 2022. Slot; 203. Top seat; 204. Flange carrier; 205. 1. Cross-shaped support frame; 206. Tapered locating pin; 2061. Inner cavity; 2062. Guide groove; 207. Bolt connector; 208. RTK host; 209. Bracket; 210. Laser emitter; 3. Hollow steel column; 301. Welded flange; 302. Chamfered surface; 4. Drive mechanism; 401. Movable disc; 402. Protective cover; 403. Rotating shaft; 404. First pulley; 405. Second pulley; 406. Synchronous belt; 407. Square shaft; 408. Fixing nut; 409. Screw Column; 410, Guide column; 411, Stop; 5, First round shaft; 6, Clamping mechanism; 601, Connecting column; 602, Extrusion block; 603, Movable seat; 604, First spring; 605, Guide hole; 606, Pressure seat; 607, Second spring; 7, Lifting mechanism; 701, Screw; 7011, Round hole; 7012, Top groove; 702, Nut seat; 703, Socket; 704, Carrier; 705, Second round shaft; 706, Turntable; 8, Plug-in mounting assembly; 801, Second guide... 802. Sleeve; 803. Insert block; 804. Third spring; 805. Pull rod; 9. Side seat; 10. Connecting plate; 1001. Plate body; 1002. Circular groove; 1003. Spacer; 11. Connecting insert block; 1101. Block body; 1102. Fourth spring; 12. Oil injection assembly; 1201. Oil box; 1202. Cylinder body; 1203. Connecting rod; 1204. First check valve; 1205. First pipe body; 1206. Second check valve; 1207. Second pipe body; 1208. Piston. Detailed Implementation

[0047] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0048] like Figures 1-16 As shown, the hollow steel column installation auxiliary device for the photothermal heliostat includes a first auxiliary mechanism 1 and a second auxiliary mechanism 2.

[0049] The first auxiliary mechanism 1 includes a semi-circular locking flange 101, the inner side of which is attached to the circumferential surface of the hollow steel column 3; support arms 102, 103 and 104 are fixedly installed on both sides and the middle part of the semi-circular locking flange 101 respectively.

[0050] The second auxiliary mechanism 2 includes a flange carrier 204; the flange carrier 204 is placed on the welded flange 301 on the top of the hollow steel column 3, and a cross carrier 205 is fixedly installed on the flange carrier 204, and an RTK host 208 and a laser emitter 210 are provided on the cross carrier 205; a plurality of tapered positioning pins 206 are fixedly installed in a ring array at the bottom of the flange carrier 204, and the tapered positioning pins 206 are inserted into the threaded holes on the welded flange 301;

[0051] A movable cylinder 202 is slidably sleeved with a bottom cylinder 201, and the top end of the movable cylinder 202 is connected to a flange carrier 204. A lifting mechanism 7 is installed inside the bottom cylinder 201. The lifting mechanism 7 includes a screw 701 and a nut seat 702 threadedly connected to the screw 701. The nut seat 702 is inserted into the bottom of the movable cylinder 202. The lifting mechanism 7 is used to drive the movable cylinder 202 to retract into the bottom cylinder 201 or extend out of the bottom cylinder 201.

[0052] A clamping mechanism 6 is mounted on a tapered positioning pin 206 and connected to a driving mechanism 4, which is installed on a flange carrier plate 204. The driving mechanism 4 is connected to a first round shaft 5, which extends into a round hole 7011 opened at the axis of the screw 701. A mating plate 10 and a mating insert 11 are respectively installed on the inner side of the bottom end of the first round shaft 5 and the top end of the screw 701.

[0053] The lifting mechanism 7 drives the movable cylinder 202 to extend out of the bottom cylinder 201, and the docking plate 10 approaches the docking block 11;

[0054] A height adjustment mechanism is installed at the bottom of the lifting mechanism 7.

[0055] like Figures 1-2 As shown, the included angle between support arm 102 and support arm 3 104 and the included angle between support arm 2 103 and support arm 3 104 are both 90°; support frames 105 are fixedly installed between support arm 102 and support arm 3 104 and between support arm 2 103 and support arm 3 104; positioning holes 107 are opened on support arm 102, support arm 2 103 and support arm 3 104, and steel rods 106 are inserted into the positioning holes 107.

[0056] The first auxiliary mechanism 1 is used for rough alignment during the fixed installation of the hollow steel column 3.

[0057] The semi-circular locking flange 101 is processed from the welded flange 301 of the hollow steel column 3 itself. Specifically, it is made by cutting the welded flange 301 in half to ensure the fit between the inner side of the semi-circular locking flange 101 and the circumference of the hollow steel column 3 during installation.

[0058] The support frame 105 is used for reinforcement connection to ensure the strength and stability of the first auxiliary mechanism 1.

[0059] By setting the positioning hole 107, the first auxiliary mechanism 1 can be fixed on the ground using the steel rod 106.

[0060] Among them, the ends of support arm 102, support arm 2 103 and support arm 3 104 that are away from the semi-circular locking flange 101 are 1.4M away from the center point of the semi-circular locking flange 101.

[0061] Outrigger 102, outrigger 2 103, outrigger 3 104, and support frame 105 all use 20 Made of 20mm hollow square steel.

[0062] like Figures 3-4 As shown, the center point of the cross-shaped carrier 205 coincides with the center of the welding flange 301; a bolt connector 207 is fixedly installed on the center point of the cross-shaped carrier 205, so that the bolt connector 207, the cross-shaped support 209, and the welding flange 301 are concentric; the RTK host 208 is installed on the bolt connector 207; a support 209 is provided on the cross-shaped carrier 205, one end of the support 209 is fixed to the welding flange 301, and the other end is fixed to the cross-shaped carrier 205; the laser emitter 210 is installed on the support 209.

[0063] The second auxiliary mechanism 2 is used to quickly find the center coordinates and azimuth angle when the hollow steel column 3 is fixedly installed. Specifically, it is used to monitor and control the parameters of the center coordinates and azimuth angle of the hollow steel column 3 in real time during the installation process to ensure that the installation meets the requirements.

[0064] Among them, the flange carrier 204 is made from the welded flange 301 of the hollow steel column 3.

[0065] like Figures 5-6 As shown, the pressing mechanism 6 includes a connecting column 601; a pressing block 602 is fixed at the bottom end of the connecting column 601. The pressing block 602 is located in the inner cavity 2061 opened in the conical positioning pin 206. The pressing block 602 is an inverted isosceles trapezoidal block. Movable seats 603 are attached to both sides of the pressing block 602. Guide grooves 2062 are opened on both sides of the conical positioning pin 206. The movable seats 603 are slidably sleeved with the guide grooves 2062. The movable seats 603 are elastically connected to the side wall of the inner cavity 2061 through a first spring 604. The movable seats 603 are provided with guide holes 605. A pressure seat 606 is inserted into the guide holes 605. The pressure seat 606 is elastically connected to the movable seats 603 through a second spring 607.

[0066] like Figure 4As shown, a top seat 203 is fixedly installed on one side of the flange carrier 204. The top seat 203 is fixed to the top end of the movable cylinder 202, and the flange carrier 204 is connected to the movable cylinder 202 through the top seat 203. The drive mechanism 4 includes a protective cover 402 fixedly installed on the top seat 203 and a movable disc 401 fixed to the connecting column 601. A rotating shaft 403 and a second pulley 405 are rotatably installed inside the protective cover 402. A first pulley 404 is fixedly sleeved on the rotating shaft 403. A synchronous belt 406 is wound between the first pulley 404 and the second pulley 405. A square shaft 4 is fixedly installed at the center of the second pulley 405. 07. A fixing nut 408 is fixedly installed on the top seat 203. The fixing nut 408 is threadedly connected to a stud 409. A square hole is opened at the center of the stud 409. The square hole is slidably sleeved with a square shaft 407. The bottom end of the stud 409 is rotatably connected to a movable disk 401. A guide post 410 is fixed on the movable disk 401. The guide post 410 is slidably sleeved with a hole opened on the top seat 203. A stop 411 is provided at the top of the guide post 410, and the stop 411 is fixedly installed inside the protective cover 402. The bottom end of the rotating shaft 403 is fixedly connected to a first round shaft 5, and the first round shaft 5 is rotatably connected to the top seat 203.

[0067] When the second auxiliary mechanism 2 is installed on the welding flange 301, the flange carrier 204 is placed on the top surface of the welding flange 301, and the tapered locating pin 206 is inserted into the threaded hole on the welding flange 301 for positioning; furthermore, in order to improve the installation effect and prevent detachment, a clamping mechanism 6 is added.

[0068] The pressing mechanism 6 operates as follows: The first round shaft 5 rotates, causing the rotating shaft 403 and the first pulley 404 to rotate. Through the belt drive provided by the first pulley 404, the synchronous belt 406, and the second pulley 405, the square shaft 407 drives the stud 409 to rotate. The stud 409 engages in threaded transmission with the fixing nut 408, and, in conjunction with the guide post 410 and the hole, provides guidance to drive the movable disc 401 to move. When the movable disc 401 moves downwards, it drives the pressing block 602 downwards via the connecting post 601. When the movable disc 401 is attached to the top surface of the tapered locating pin 206, i.e., the movable disc 401 moves to its lowest position, during the above process, the pressing block 602 presses the movable seat 603, causing the movable seat 603 to move outward from the inner cavity 2061 and compressing the first spring 604. At the same time, the pressure seat 606 extends out from the guide groove 2062 and presses against the threaded hole wall of the welding flange 301. Simultaneously, the second spring 607 is compressed. The compression force of the second spring 607 causes the pressure seat 606 to press tightly against the threaded hole wall, providing a pressing limit, thereby improving the installation effect of the second auxiliary mechanism 2 on the welding flange 301.

[0069] When the drive disc 401 moves upward, the disc 401 drives the pressing block 602 to move upward together via the connecting column 601 until the disc 401 moves to its highest position, i.e., the top of the guide column 410 contacts the stop seat 411 and is blocked. During the above process, the pressing block 602 releases its pressure on the movable seat 603, and the compression force of the first spring 604 and the second spring 607 resets the movable seat 603 and the pressure seat 606, restoring them to their original positions. Figures 5-6 The state shown.

[0070] like Figures 7-9 As shown, the lifting mechanism 7 also includes a carrier 704; the bottom end of the screw 701 is rotatably mounted to the carrier 704, and a second round shaft 705 is fixed to the bottom end of the screw 701. The second round shaft 705 passes through a circular groove opened at the bottom of the bottom cylinder 201, and a turntable 706 is fixed to one end of the second round shaft 705 extending outside the bottom of the bottom cylinder 201; a socket 703 is provided on the top of the nut seat 702; a base 2021 is fixedly mounted on the bottom end of the movable cylinder 202, and a slot 2022 for engaging with the socket 703 is opened in the middle of the base 2021; a first guide sleeve 2011 is fixedly mounted on the top end of the bottom cylinder 201, and the first guide sleeve 2011 is located above the base 2021. The movable cylinder 202 and the first guide sleeve 2011 are slidably sleeved together; a stop block 2014 is fixed on the inner groove wall at the bottom of the bottom cylinder 201.

[0071] The lifting mechanism 7 is used to extend or retract the movable cylinder 202 from or into the base cylinder 201. When not assisting in the installation of the hollow steel column 3, the movable cylinder 202 is retracted into the base cylinder 201 to reduce the overall length and storage volume, thus facilitating storage. When the second auxiliary mechanism 2 is placed on the welded flange 301 at the top of the hollow steel column 3, the movable cylinder 202 extends from the base cylinder 201, facilitating installation operations on the ground and avoiding work at height.

[0072] When the lifting mechanism 7 drives the movable cylinder 202 to extend out of the bottom cylinder 201, the socket 703 is inserted into the slot 2022, the lifting mechanism 7 establishes a connection with the movable cylinder 202, the turntable 706 is rotated, the screw 701 is rotated, the screw 701 and the nut seat 702 are threadedly driven, and with the guidance between the first guide sleeve 2011 and the movable cylinder 202, the nut seat 702 pushes the movable cylinder 202 to extend out of the bottom cylinder 201 until the base 2021 is in contact with the bottom surface of the first guide sleeve 2011.

[0073] After the above operations, the base cylinder 201 and the movable cylinder 202 extending from the base cylinder 201 are used to elevate the flange. The base cylinder 201 is held and moved so that the flange carrier 204 is placed on the welding flange 301, and the tapered locating pin 206 is inserted into the threaded hole on the welding flange 301. After placement, the height of the carrier 704 is adjusted to a low position by the height adjustment mechanism. The carrier 704 drives the screw 701 and the nut seat 702 to move downward together, separating the socket 703 from the slot 2022, canceling the connection between the lifting mechanism 7 and the movable cylinder 202. At the same time, the screw 701 moves downward to connect the mating plate 10 and the mating plug 11, thereby establishing a connection between the screw 701 and the first round shaft 5. Subsequently, by rotating the turntable 706, the first round shaft 5 can be driven to rotate without driving the movable cylinder 202 to move up or down.

[0074] Through the above design, the lifting mechanism 7 can be adjusted in height and its connection can be changed to meet the requirements of driving the movable cylinder 202 to rise and fall and the first circular shaft 5 to rotate via a single turntable 706 at the bottom of the bottom cylinder 201.

[0075] It should be noted that after the socket 703 is separated from the slot 2022, the first guide sleeve 2011 on the base 201 is supported and suspended by the base 2021, which can keep the movable cylinder 202 extended from the base 201.

[0076] like Figure 9 As shown, the height adjustment mechanism includes side seats 9 fixedly installed on both sides of the top of the carrier 704 and a plug-in mounting assembly 8; the side seats 9 are located below the stop block 2014, and a groove is opened on one side of the side seats 9; the plug-in mounting assembly 8 includes a second guide sleeve 801 fixedly connected to the side wall of the bottom cylinder 201; a plug-in block 802 is slidably installed in the second guide sleeve 801 and is inserted into the groove; a third spring 803 is provided in the second guide sleeve 801; the plug-in block 802 is elastically connected to the inner side wall of the second guide sleeve 801 through the third spring 803; a pull rod 804 is fixed to the plug-in block 802 and extends to the outside of the second guide sleeve 801.

[0077] like Figure 9 As shown, at this time, the carrier 704 of the lifting mechanism 7 is in a high position. When it is adjusted to a low position, by pulling the pull rod 804, the pull rod 804 drives the plug block 802 to move into the second guide sleeve 801 and compresses the third spring 803. The plug block 802 is pulled out of the groove, and the lifting mechanism 7 automatically falls down by gravity until the carrier 704 contacts the bottom inner wall of the bottom cylinder 201. Then the pull rod 804 is released, and the elastic force of the third spring 803 causes the plug block 802 to press against the side wall of the side seat 9.

[0078] When the lifting mechanism 7 is readjusted to the high position, the lifting mechanism 7 is moved upward by pushing the turntable 706 until the side seat 9 is in contact with the bottom surface of the stop block 2014. At this time, the plug block 802 is aligned with the groove. The elastic force of the third spring 803 causes the plug block 802 to be inserted into the groove, so that the lifting mechanism 7 is kept in the high position.

[0079] like Figures 10-12 As shown, the top end of the screw 701 has a circular groove communicating with the circular hole 7011, and the diameter of the circular groove is smaller than the diameter of the circular hole 7011; the first circular shaft 5 passes through the circular groove; the mating disc 10 includes a disc body 1001 that is clearance-fitted into the circular hole 7011, and a circular groove 1002 is formed on the top surface of the disc body 1001. A plurality of spacers 1003 are fixed in a circular array in the circular groove 1002, and the circular groove 1002 is divided into a plurality of arc-shaped grooves by the spacers 1003; the mating plug 11 includes a block body 1101; a top groove 7012 is formed on the top surface of the circular hole 7011; the block body 1101 is slidably sleeved with the top groove 7012, and a fourth spring 1102 is provided in the top groove 7012. The block body 1101 is elastically connected to the wall of the top groove 7012 by the fourth spring 1102.

[0080] After the movable cylinder 202 is driven by the lifting mechanism 7 to move to a high position, the docking plate 10 at the bottom of the first round shaft 5 approaches the docking block 11. At this time, there is a distance between the two and they are not connected. Then, the lifting mechanism 7 is moved down to a low position by the height adjustment mechanism. The screw 701 drives the docking block 11 to move down, so that the block 1101 in the docking block 11 is inserted into the arc groove, or the block 1101 is pressed on the top surface of the spacer 1003, and the fourth spring 1102 is compressed.

[0081] When block 1101 presses against the top surface of spacer 1003, the screw 701 rotates by rotating turntable 706, and block 1101 moves with screw 701. Block 1101 leaves spacer 1003, and by the elastic force of fourth spring 1102, block 1101 enters arc groove. As turntable 706 continues to rotate, block 1101 contacts spacer 1003. Then block 1101 can push spacer 1003, causing mating plate 10 and first circular shaft 5 to rotate.

[0082] The block 1101 is directly inserted into the arc-shaped groove. Rotating the turntable 706 makes the block 1101 contact the spacer 1003. Continuing to rotate the turntable 706 can make the first round shaft 5 rotate, thereby driving the drive mechanism 4 to run, so that the clamping mechanism 6 clamps the threaded hole on the welding flange 301.

[0083] After the clamping mechanism 6 releases the clamping of the threaded hole on the welding flange 301, the lifting mechanism 7 is adjusted to the high position, the socket 703 is inserted into the slot 2022, the docking plate 10 is separated from the docking block 11, and then the second auxiliary mechanism 2 is removed from the welding flange 301. The movable cylinder 202 is retracted into the bottom cylinder 201 by operating the lifting mechanism 7.

[0084] like Figures 13-15 As shown, it also includes an oil injection assembly 12, which includes an oil box 1201 and a cylinder 1202. Both the oil box 1201 and the cylinder 1202 are fixed to the top back side of the bottom cylinder 201. A first one-way valve 1204 and a second one-way valve 1206 are installed on the top of the cylinder 1202. The first one-way valve 1204 is connected to the oil box 1201 through a first pipe 1205, and one end of the first pipe 1205 extends into the bottom of the oil box 1201. An annular cavity 2 is formed inside the first guide sleeve 2011. 012, the inner wall of the first guide sleeve 2011 is provided with a plurality of evenly distributed oil outlet holes 2013, and the oil outlet holes 2013 are connected to the annular cavity 2012. The second one-way valve 1206 is connected to the annular cavity 2012 through the second pipe body 1207. The cylinder 1202 is fitted with a piston 1208, and the piston 1208 is connected to a connecting rod 1203. The bottom end of the connecting rod 1203 passes through the side groove 2015 opened on the bottom back side of the bottom cylinder 201, and the bottom end of the connecting rod 1203 is fixed to the carrier 704.

[0085] The oil injection assembly 12 is used to inject oil into the annular cavity 2012. The oil enters the space between the first guide sleeve 2011 and the movable cylinder 202 through the oil outlet 2013, providing lubrication for both and reducing operational wear.

[0086] The oil injection assembly 12 operates as follows: When the carrier 704 moves up and down, the carrier 704 drives the piston 1208 to move up and down via the connecting rod 1203. When the piston 1208 moves downward, the cylinder 1202 draws oil from the oil box 1201 through the first one-way valve 1204 and the first pipe 1205. When the piston 1208 moves upward, the piston 1208 pushes the oil in the cylinder 1202, causing the oil to enter the annular groove through the second one-way valve 1206 and the second pipe 1207; thus achieving automatic oil injection lubrication.

[0087] The installation process for hollow steel columns is as follows: center coordinates, east and west coordinates are marked → drilling → column installation → final angle, coordinates, verticality and elevation measurement and acceptance.

[0088] The installation method specifically includes the following steps:

[0089] When implementing this device, the following requirements apply: When using the RTK host 208 to lay out the center coordinates of the hollow steel column 3, the center coordinates and the points in the due east and due west directions should be laid out simultaneously, ensuring a "three-point alignment," and the marker stakes should be fixed. The distance between the due east and due west points and the center coordinate point should be greater than 1cm greater than the arm lengths of support arm 102 and support arm 2 103. The RTK host 208 must be calibrated at the benchmark point before use to avoid significant errors during operation.

[0090] Based on the marked center coordinates of the steel column, the drilling rig travels to the designated location and makes initial adjustments to the drill rod position. The drill rod is then erected vertically, and the marked position is accurately located. The angle of the drill rod is adjusted to maintain verticality, and a spirit level is used for auxiliary measurement. Once the drilling rig is in place, drilling begins. The error between the center of the drill rod and the mark is less than ±30mm. After the hole is formed, care must be taken to protect the finished products of the markers in the due east and due west directions. The markers must not be buried or damaged.

[0091] To meet the above requirements, install Figures 1-2 The first auxiliary mechanism 1 aligns the center lines of support arms 102 and 103 with the two ends of the marker stakes fixed in the due east and due west directions during the layout of the steel column's center coordinates. This ensures that the center point of the semi-circular locking flange 101 is basically in the same position as the designed center coordinates of the steel column. Then, the steel chisel 106 is driven into the positioning hole 107 to fix the first auxiliary mechanism 1.

[0092] The hollow steel column 3 is transported and hoisted, and slowly placed into the hole. The hollow steel column 3 is then placed close to the inner side of the semi-circular locking flange 101. Two horizontal straightedges are attached to the outer surface of the hollow steel column 3 at a 90° angle. The verticality and horizontality of the hollow steel column 3 are adjusted to complete the preliminary alignment of the center coordinates of the steel column.

[0093] After turning on the RTK host 208 and verifying its accuracy, install it onto the fixing bolt connector 207 at the center of the cross bracket 209. Turn on the laser emitter 210 and place the flange carrier 204 onto the welding flange 301. Insert the tapered locating pin 206 into the bolt holes of the welding flange 301, ensuring that the laser emitter 210 and the chamfered surface 302 on the side of the welding flange 301 are aligned. Use a clamp to rotate the hollow steel column 3, so that the laser beam emitted by the laser emitter 210 hits the steel column's design azimuth marker or its extension line, thus ensuring that the steel column's installation azimuth meets the design requirements. Simultaneously, based on real-time RTK data, adjust the center of the hollow steel column 3 to coincide with the design center coordinate point, completing the rapid and accurate alignment of the steel column's center coordinates and installation azimuth.

[0094] After completing the above steps, pour concrete into the hole and vibrate it with a vibrator. When using the vibrator, it should be extended to the bottom and inserted quickly and withdrawn slowly to meet the vibration time. Vibrate in three directions at the same time. After pouring, the concrete should be flush with the ground. During the concrete pouring and vibration process, the RTK host 208 can be used to monitor in real time whether the steel column is displaced due to the pouring and vibration of the concrete, and then make adjustments.

[0095] After pouring is complete, use an RTK 208 main unit to measure the actual coordinates, elevation, and azimuth data, and check the verticality and horizontality of the columns by observing the bubble level on a level ruler to see if they meet the design requirements. If there are any errors, adjustments must be made before the concrete sets to ensure that all parameters are within the design range. After confirming that everything is correct, use square timber for support to prevent displacement, thus completing the steel column installation.

[0096] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A hollow steel pole mounting aid for a solar power tower, characterised in that: The first auxiliary mechanism (1) and the second auxiliary mechanism (2) are included. The first auxiliary mechanism (1) includes a semicircular clamping flange (101) which is attached to the peripheral surface of the hollow steel column (3); the two sides and the middle of the semicircular clamping flange (101) are respectively fixedly installed with a first supporting arm (102), a second supporting arm (103) and a third supporting arm (104). The second auxiliary mechanism (2) includes a flange carrier plate (204); the flange carrier plate (204) is placed on the welded flange (301) at the top of the hollow steel column (3), the flange carrier plate (204) is fixedly installed with a cross carrier (205), and the cross carrier (205) is provided with an RTK main machine (208) and a laser emitter (210); the bottom of the flange carrier plate (204) is fixedly installed with a plurality of conical positioning pins (206) in an annular array, and the conical positioning pins (206) are inserted into the threaded holes on the welded flange (301); An activity cylinder (202) is slidably sleeved with a bottom cylinder (201) outside, and the top end of the activity cylinder (202) is connected with the flange carrier plate (204); a lifting mechanism (7) is installed in the bottom cylinder (201); the lifting mechanism (7) includes a screw rod (701) and a nut seat (702) threadedly connected to the screw rod (701), and the nut seat (702) is inserted into the bottom of the activity cylinder (202); the lifting mechanism (7) is used to drive the activity cylinder (202) to be retracted into the bottom cylinder (201) or to be extended out of the bottom cylinder (201); A pressing mechanism (6) is arranged on the conical positioning pin (206), and the pressing mechanism (6) is connected with a driving mechanism (4) installed on the flange carrier plate (204); the driving mechanism (4) is connected with a first circular shaft (5) extending into a circular hole (7011) formed at the axis of the screw rod (701); a butt joint disc (10) and a butt joint plug block (11) are respectively installed on the bottom end of the first circular shaft (5) and the inner side of the top end of the screw rod (701); The lifting mechanism (7) drives the activity cylinder (202) to extend out of the bottom cylinder (201), and the butt joint disc (10) is close to the butt joint plug block (11); A height adjusting mechanism is installed at the bottom of the lifting mechanism (7).

2. The hollow steel column mounting aid for a solar power tower as claimed in claim 1, characterized in that: The included angles between the first supporting arm (102) and the third supporting arm (104) and between the second supporting arm (103) and the third supporting arm (104) are both 90°; supporting frames (105) are fixedly installed between the first supporting arm (102) and the third supporting arm (104) and between the second supporting arm (103) and the third supporting arm (104); positioning holes (107) are formed in the first supporting arm (102), the second supporting arm (103) and the third supporting arm (104), and steel drills (106) are inserted into the positioning holes (107).

3. The hollow steel column mounting aid for a solar power tower as claimed in claim 1, wherein: The center point of the cross carrier (205) coincides with the center of the welding flange (301); the center point of the cross carrier (205) is fixedly installed with a bolt connector (207); the RTK host (208) is installed on the bolt connector (207); the cross carrier (205) is provided with a support (209), one end of the support (209) is fixed on the welding flange (301), and the other end is fixed on the cross carrier (205); the laser emitter (210) is installed on the support (209).

4. The installation aid for hollow steel tower of a solar power plant according to claim 1, characterized in that: The pressing mechanism (6) comprises a connecting column (601); the bottom end of the connecting column (601) is fixedly provided with an extrusion block (602), the extrusion block (602) is located in an inner cavity (2061) formed in the conical positioning pin (206), the extrusion block (602) is an inverted isosceles trapezoidal block, the two sides of the extrusion block (602) are fixedly provided with movable seats (603), the two sides of the conical positioning pin (206) are provided with guide grooves (2062), the movable seats (603) and the guide grooves (2062) are slidably connected, the movable seats (603) are elastically connected with the side wall of the inner cavity (2061) through first springs (604), the movable seats (603) are provided with guide holes (605), the guide holes (605) are matched with pressure seats (606) inserted therein, and the pressure seats (606) are elastically connected with the movable seats (603) through second springs (607).

5. The installation aid for hollow steel stanchions of a solar power plant according to claim 4, characterized in that: One side of the flange carrier disc (204) is fixedly provided with a top seat (203), the top seat (203) is fixed with the top end of the movable cylinder (202), the driving mechanism (4) comprises a protective cover (402) fixedly installed on the top seat (203) and a movable disc (401) fixed with the connecting column (601); the protective cover (402) is rotatably installed with a rotating shaft (403) and a second pulley (405), the rotating shaft (403) is fixedly sleeved with a first pulley (404), the first pulley (404) and the second pulley (405) are provided with a synchronous belt (406) therebetween, the second pulley (405) is fixedly installed with a square shaft (407) at the center, the top seat (203) is fixedly installed with a fixed nut (408), the fixed nut (408) is threadedly connected with a stud (409), a square hole is formed at the axis of the stud (409), the square hole is slidably sleeved with the square shaft (407), the bottom end of the stud (409) is rotatably connected with the movable disc (401), the movable disc (401) is fixedly provided with a guide column (410), the guide column (410) is slidably sleeved with a hole body formed in the top seat (203), the top end of the guide column (410) is provided with a stop seat (411), and the stop seat (411) is fixedly installed in the protective cover (402); the bottom end of the rotating shaft (403) is fixedly connected with the first circular shaft (5), and the first circular shaft (5) is rotatably connected with the top seat (203).

6. The hollow steel column mounting aid for a solar power tower as claimed in claim 1, characterized in that: The lifting mechanism (7) further comprises a carrier (704); the bottom end of the screw rod (701) is rotatably installed with the carrier (704), and the bottom end of the screw rod (701) is fixed with a second circular shaft (705), the second circular shaft (705) penetrates through a circular groove formed in the bottom of the bottom cylinder (201), and the end of the second circular shaft (705) extending out of the bottom of the bottom cylinder (201) is fixed with a rotating disc (706); the top of the nut seat (702) is provided with a socket (703), the bottom end of the movable cylinder (202) is fixedly installed with a base (2021), and the middle of the base (2021) is provided with a plug groove (2022) matched with the plug socket (703); the top end of the bottom cylinder (201) is fixedly installed with a first guide sleeve (2011), and the first guide sleeve (2011) is located above the base (2021), and the movable cylinder (202) is slidably sleeved with the first guide sleeve (2011); the inner groove wall of the bottom of the bottom cylinder (201) is fixed with a stop block (2014).

7. The installation aid for hollow steel stanchions of a solar power plant according to claim 6, characterized in that: The height adjusting mechanism comprises side seats (9) fixedly installed on both sides of the top of the carrier (704) and a plug-in mounting assembly (8); the side seats (9) are located below the stop block (2014), and one side of the side seats (9) is provided with a groove; the plug-in mounting assembly (8) comprises a second guide sleeve (801) fixedly communicated to the side wall of the bottom cylinder (201); a plug-in block (802) is slidably installed in the second guide sleeve (801), and the plug-in block (802) is inserted into the groove; a third spring (803) is arranged in the second guide sleeve (801), the plug-in block (802) is elastically connected with the inner side wall of the second guide sleeve (801) through the third spring (803), and the plug-in block (802) is fixed with a pull rod (804), and the pull rod (804) extends to the outside of the second guide sleeve (801).

8. The hollow steel column mounting aid for a solar power tower as claimed in claim 1, characterized in that: The top end of the screw rod (701) is provided with a circular groove in communication with the circular hole (7011), and the diameter of the circular groove is smaller than the hole diameter of the circular hole (7011); the first circular shaft (5) penetrates through the circular groove; the butt joint disc (10) comprises a disc body (1001) gap-fitted into the circular hole (7011), a circular ring groove (1002) is formed in the top surface of the disc body (1001), a plurality of partition blocks (1003) are fixed in the circular ring groove (1002) in an annular array, and the circular ring groove (1002) is divided into a plurality of arc grooves by the partition blocks (1003); the butt joint plug-in block (11) comprises a block body (1101); a top groove (7012) is formed in the top end surface of the circular hole (7011); the block body (1101) is slidably sleeved with the top groove (7012), and a fourth spring (1102) is arranged in the top groove (7012); the block body (1101) is elastically connected with the wall of the top groove (7012) through the fourth spring (1102).

9. The installation aid for hollow steel stanchion of a solar power tower as claimed in claim 6, characterized in that: Also include oil injection assembly (12), the oil injection assembly (12) includes oil box (1201) and cylinder (1202);The oil box (1201) and cylinder (1202) are all fixed to the top back of bottom cylinder (201), the top of the cylinder (1202) is provided with first check valve (1204) and second check valve (1206), the first check valve (1204) is connected with oil box (1201) through first pipe body (1205), and one end of first pipe body (1205) extends into the bottom of oil box (1201), the first guide sleeve (2011) is provided with annular cavity (2012), a plurality of evenly distributed oil outlet holes (2013) are formed in the inner wall of the first guide sleeve (2011), and the oil outlet holes (2013) are communicated with the annular cavity (2012), the second check valve (1206) is connected with the annular cavity (2012) through the second pipe body (1207), the piston (1208) is connected with the cylinder (1202) in a matching mode, and the piston (1208) is connected with connecting rod (1203), the bottom end of the connecting rod (1203) passes through the side groove (2015) formed in the back bottom of the bottom cylinder (201), and the bottom end of the connecting rod (1203) is fixed with the carrier (704).

10. The installation method of hollow steel column of a solar power heliostat according to any one of claims 1-9, characterized in that: The installation method comprises the following steps: I. Use the RTK host (208) to perform center coordinate lofting of the hollow steel stand column (3), loft the center coordinate and the east and west direction points at the same time, achieve "three points and one line", and fix the stakes; II. According to the marked steel stand column center coordinate point, drive the drilling machine to the specified location, preliminarily adjust the position of the drill rod, vertically stand the drill rod, find the marked position, adjust the angle of the drill rod to keep vertical, and use a level to assist in measurement, adjust the drilling machine to the position to start drilling, the center of the drill rod and the mark error is less than ± 30mm, and after the hole is formed, pay attention to the finished product protection of the east and west direction point stakes, and do not bury or damage the stakes; III. Install the first auxiliary mechanism (1), align the center lines of the first arm (102) and the second arm (103) with the two ends of the east and west direction point stakes fixed during the lofting of the steel stand column center coordinate point, ensure that the center point of the semicircular clamping flange (101) is in the same position as the design center coordinate of the steel stand column, then hit the steel drill (106) into the positioning hole (107) to fix the first auxiliary mechanism (1); IV. Transport and hoist the hollow steel stand column (3), slowly put it into the hole, and tightly put the hollow steel stand column (3) against the inner side of the semicircular clamping flange (101), through two horizontal rulers to form a 90° diagonal and be adsorbed on the outer surface of the hollow steel stand column (3), adjust the perpendicularity and levelness of the hollow steel stand column (3), and complete the preliminary alignment of the steel stand column center coordinate. V. Open the RTK host (208), check no error, installed to the fixed bolt connector (207) in the center of the cross bracket (209), open the laser emitter (210), and set the flange carrier disc (204) on the welded flange (301), the tapered positioning pin (206) is inserted into the bolt hole of the welded flange (301), so that the laser emitter (210) is in the same straight line with the side flat surface (302) of the welded flange (301); VI. Use the clamp to rotate the hollow steel column (3), so that the rays emitted by the laser emitter (210) hit the design azimuth marker pile or the extension line of the marker pile, thereby ensuring that the installation azimuth angle of the steel column meets the design requirements. At the same time, according to the RTK real-time data, adjust the hollow steel column (3) center to coincide with the design center coordinate point, complete the rapid and accurate alignment of the steel column center coordinate and installation azimuth angle; VII. Pour concrete into the hole and use a vibrating rod to vibrate it. The vibrating rod needs to be extended to the bottom when in use, and it should be put in quickly and taken out slowly. The vibration time should be met, and vibration should be carried out in three directions. After pouring is completed, the concrete is flush with the ground; During the concrete pouring and vibrating process, the RTK host (208) can be used to monitor whether the steel column has displacement due to the pouring and vibrating of the concrete, so as to make adjustment; VIII. After pouring is completed, use the RTK host (208) to measure the actual coordinate, elevation and azimuth angle data, the verticality and levelness of the column, and whether the design requirements are met by observing the level ruler bubble; If there is error, it needs to be adjusted before the concrete solidifies, to ensure that all parameters are within the design range; After confirming that there is no error, use square wood to support to prevent displacement, that is, complete the steel column installation work.

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