Concrete tower drum assembling mechanism and construction method thereof

Abstract

The invention relates to the technical field of tower drum assembling mechanisms, in particular to a concrete tower drum assembling mechanism and a construction method thereof.The concrete tower drum assembling mechanism comprises four assembling bases, connecting columns are fixed to the two ends of each assembling base, a concrete tower drum piece is inserted between every two connecting columns, an edge groove is formed in one side of each connecting column, and a transverse rod is fixed into each edge groove; bolts are inserted into the surfaces of the connecting columns. The device has the advantages that the transverse rod is installed on one side of the connecting column, subsequent tower climbing is facilitated, and the transverse rod serves as a crawling ladder. And after the bolts penetrate through the transverse rods on the surfaces of the two connecting columns, the transverse rods are matched with the bolts to serve as a connecting structure of the two connecting columns, the connecting columns achieve limiting of the concrete tower drum pieces and connection of the two concrete tower drum pieces, the connecting columns are matched with the transverse rods to achieve the crawling ladder function, and the connecting columns are multipurpose. And the transverse rod further meets the requirement for bolting and limiting of the hoisting rope, the functions are richer, and the requirements for multiple functions of tower climbing, hoisting rope bolting and the like on a construction site are met.

Description

Technical Field

[0001] The present invention relates to the technical field of tower assembly mechanisms, in particular to a concrete tower assembly mechanism and a construction method thereof. Background Art

[0002] In the construction process of concrete towers such as wind turbine towers, tower assembly is a key link. The traditional concrete tower assembly method has many problems:

[0003] Insufficient protection: During the assembly of tower segments, there is a lack of effective protective structures on both sides of the tower segments, which are prone to damage during transportation, lifting and other operations, affecting the overall quality and service life of the tower.

[0004] Poor sealing: The sealing between the tower segments after assembly is difficult to ensure, which can easily lead to problems such as air leakage and rain leakage, affecting the normal operation and structural stability of the tower.

[0005] Poor connection stability: When the tower sections are hoisted and stacked, the connection between the two adjacent tower sections is not strong enough. Relying only on simple connection methods, problems such as loosening and displacement are likely to occur during long-term use, affecting the overall safety of the tower.

[0006] Single function: The existing tower assembly structure has a relatively single function and only has basic assembly functions. It cannot meet the construction site's requirements for multiple functions such as tower climbing and lifting rope bolting.

[0007] Inconvenient transportation: The tower segments lack effective fixing and protection measures during transportation, which makes them prone to shaking, collision and other problems during transportation, causing damage to the tower segments, increasing transportation costs and construction difficulty. Summary of the Invention

[0008] The object of the present invention is to provide a concrete tower assembly mechanism and a construction method thereof to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a concrete tower assembly mechanism, comprising four assembly bases, both ends of the assembly bases are fixed with connecting columns, a concrete tower piece is inserted between the two connecting columns, a side groove is opened on one side of the connecting column, a cross bar is fixed inside the side groove, a bolt is inserted on the surface of the connecting column, the bolt passes through the cross bar and the two connecting columns and is locked, the four assembly bases are assembled into a ring and inserted into a bracket, and a plurality of spherical wheels are fixed to the bottom end of the bracket.

[0010] Preferably, the assembly base is an "L"-shaped arc plate, the arc of the assembly base is ninety degrees, the connecting column is an "L"-shaped plate structure, the two connecting columns are symmetrically distributed about the assembly base, the connecting column and the concrete tower barrel piece have equal heights, the concrete tower barrel piece is an arc-shaped plate structure, the two ends of the concrete tower barrel piece are respectively against one side of the two connecting columns, and a glue groove is provided on the bottom surface of the assembly base, the glue groove is a circular arc groove, there are two glue grooves, the sizes of the two glue grooves are different, and a plurality of through grooves are provided between the two glue grooves, and the through grooves are "m"-shaped grooves.

[0011] Preferably, a splicing groove is provided on the surface of the connecting column, and the splicing groove is a "convex" shaped groove, and the height of the splicing groove is equal to the height of the connecting column. A reserved hole is provided on the side wall of the splicing groove close to the concrete tower tube piece, and the reserved hole is a "convex" shaped circular hole. There are multiple reserved holes, and the multiple reserved holes are arranged at equal distances and sizes along the long side of the splicing groove. A screw is inserted into the inside of the reserved hole, and one end of the screw passes through the reserved hole and is screwed to the side wall of the concrete tower tube piece, and the other end of the screw is in the reserved hole. After the two connecting columns at the ends of the assembled base are brought together, the splicing grooves on the surfaces of the two connecting columns are assembled into an "I" shaped groove. A splicing strip is inserted into the inside of the "I" shaped groove, and the splicing strip is an "I" shaped strip, and the height of the splicing strip is equal to the height of the connecting column.

[0012] Preferably, the height of the side groove is equal to the height of the connecting column, and a plurality of cross bars are provided, and the plurality of cross bars are arranged at equal distances and sizes along the long side of the side groove. A limiting groove is provided at one end of the cross bar close to the side wall of the side groove, and the limiting groove is an annular groove. A reserved hole 2 is provided at the other end of the cross bar, and a reserved hole 3 is provided on the side wall of the side groove. The reserved hole 3 corresponds to the reserved hole 2 one to one. After the two assembled bases are assembled, the bolts pass through the reserved hole 3 and the reserved hole 2 and are locked. At this time, the two connecting columns are connected by bolts, and the two cross bars are connected by bolts.

[0013] Preferably, the bracket is a circular ring frame with a "U"-shaped cross-section, and the outer ring plate of the bracket is provided with a reserved groove on the inner ring surface, the reserved groove is an annular groove, and a rubber cover is fixed between the top surface and the bottom surface of the reserved groove. The outer ring plate of the bracket is screwed with multiple clamping screws on the outer ring surface, and after the clamping screws push the rubber cover, the rubber cover is clamped between the clamping screws and the assembly base.

[0014] A construction method for a concrete tower assembly mechanism according to the claim, comprising the following steps: after the concrete tower segments are unloaded from the truck, the concrete tower segments are hoisted onto an assembly base between two connecting columns; after all four concrete tower segments are placed, a bracket is placed on the ground, the spherical wheel is braked with the aid of pads, and then the four assembly bases are placed in the bracket, bolts are passed through the cross bars on the surfaces of two connecting columns close together and then locked to achieve connection and fixation of two adjacent groups of assembly bases and connecting columns, the pads are removed, and the bracket is towed by traction equipment to be transferred to the tower construction site, and the connected assembly bases and connecting columns are hoisted to a high altitude and stacked on the installed tower.

[0015] Preferably, after the concrete tower barrel piece is placed between the two connecting columns, the two connecting columns are protected on both sides of the concrete tower barrel piece to avoid damage to the two sides of the concrete tower barrel piece, and the connecting columns are connected between the concrete tower barrel pieces to ensure the sealing of the two concrete tower barrel pieces after assembly. When the four concrete tower barrel pieces are assembled into an annular tower barrel section, when the annular tower barrel section is hoisted and stacked, colloid is applied to the bottom surface of the assembly base to strengthen the connection between the two stacked annular sleeve sections, and the colloid is stuck inside the glue groove and the through groove to improve the firmness of the two annular tower barrel sections after connection.

[0016] Preferably, after the concrete tower piece is thrown between the two connecting columns, a hole is opened in the side wall of the concrete tower piece through the reserved hole one, and then the screw is inserted into the hole in the side wall of the concrete tower piece after passing through the reserved hole one. When the four assembly bases supporting the corresponding concrete tower pieces are placed on the bracket, the splicing strips are inserted into the splicing grooves on the surfaces of the two connecting columns. At this time, the splicing strips not only cover the notch of the reserved hole one, but also realize the traction connection of the two connecting columns, thereby avoiding the horizontal separation of the two connecting columns.

[0017] Preferably, the cross bar is installed on one side of the connecting column to facilitate subsequent climbing of the tower. The cross bar acts as a ladder, and after the bolts pass through the cross bars on the surfaces of the two connecting columns, the cross bar cooperates with the bolts to act as a connecting structure of the two connecting columns. The connecting column not only limits the position of the concrete tower segments, but also connects the two concrete tower segments, and cooperates with the cross bar to realize the ladder function. The connecting column has multiple uses.

[0018] Preferably, after the assembling base is placed into the bracket, the clamping screw is screwed to push the rubber cover to clamp the surface of the assembling base to prevent the assembling base from shifting in the bracket. The assembling base not only serves as a supporting structure for the concrete tower barrel segment, but also serves as a pad and limiter for the concrete tower barrel segment to be placed in the bracket. When the concrete tower barrel segment is transferred to the construction site, the assembling base serves as a stacking and connecting structure for two adjacent annular tower barrel segments, that is, the assembling base is used for one thing.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The concrete tower assembly mechanism and construction method proposed in the present invention are characterized by the connecting columns at both ends of the assembly base being an "L"-shaped plate structure. After the concrete tower segment is placed between the two connecting columns, the two connecting columns can protect both sides of the concrete tower segment, effectively preventing the concrete tower segment from being damaged on both sides during transportation, lifting and other operations, thereby ensuring the quality of the tower segment.

[0021] Connecting columns connect the concrete tower segments, ensuring a tight seal after assembly. When the four concrete tower segments are assembled into an annular tower section, a colloid is applied to the bottom surface of the assembly base during hoisting and stacking. This colloid is then inserted into the adhesive slots and through-holes, further enhancing the firmness and tightness of the connection between the two annular tower segments.

[0022] A crossbar is installed on one side of the connecting column to facilitate subsequent tower climbing, serving as a ladder. Bolts penetrate the crossbars on the surfaces of the two connecting columns, and the crossbar and bolts serve as the connecting structure between the two connecting columns. The connecting columns not only limit the position of the concrete tower segments but also connect the two concrete tower segments. In conjunction with the crossbar, they also function as a ladder, making the connecting columns multifunctional. The crossbar also provides a limit for bolting hoisting ropes, adding to its functionality and meeting the diverse needs of construction sites for tower climbing, hoisting rope bolting, and other functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0025] Figure 3 It is a top view of the structure of the present invention;

[0026] Figure 4 for Figure 3 Structural cross-section view at AA in the middle;

[0027] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle;

[0028] Figure 6 for Figure 3 Structural cross-section view at the middle BB;

[0029] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point C in the middle;

[0030] Figure 8 This is a schematic diagram of the connection structure of the assembled base and bracket of the present invention;

[0031] Figure 9 This is a schematic diagram of the connection structure of the assembled base and the connecting column of the present invention;

[0032] Figure 10 for Figure 9 A magnified schematic diagram of the structure at D in the middle;

[0033] Figure 11 This is a schematic diagram of the bracket structure of the present invention;

[0034] Figure 12 This is a schematic diagram of the assembled base structure of the present invention.

[0035] In the figure: assembly base 1, connecting column 2, concrete tower tube piece 3, splicing groove 4, reserved hole 1 5, screw 6, splicing strip 7, side groove 8, cross bar 9, limit groove 10, reserved hole 2 11, reserved hole 3 12, bolt 13, glue groove 14, through groove 15, bracket 16, reserved groove 17, rubber cover 18, clamping screw 19, spherical wheel 20. DETAILED DESCRIPTION

[0036] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] For example 1, please refer to Figures 1 to 12The present invention provides a technical solution: a concrete tower assembly mechanism, comprising four assembling bases 1, with connecting columns 2 fixed at both ends of the assembling base 1, and a concrete tower piece 3 inserted between the two connecting columns 2. The assembling base 1 is an "L"-shaped arc plate, and the arc of the assembling base 1 is ninety degrees. The connecting column 2 is an "L"-shaped plate structure, and the two connecting columns 2 are symmetrically distributed about the assembling base 1. The connecting column 2 and the concrete tower piece 3 are equal in height. The concrete tower piece 3 is an arc-shaped plate structure, and the two ends of the concrete tower piece 3 are respectively against one side of the two connecting columns 2. A glue groove 14 is provided on the bottom surface of the assembling base 1, and the glue groove 14 is a circular arc groove. There are two glue grooves 14, and the sizes of the two glue grooves 14 are different. A plurality of through grooves 15 are provided between the two glue grooves 14, and the through groove 15 is a "m"-shaped groove. After the concrete tower barrel piece 3 is placed between the two connecting columns 2, the two connecting columns 2 are protected on both sides of the concrete tower barrel piece 3 to prevent damage to both sides of the concrete tower barrel piece 3, and the connecting columns 2 are connected between the concrete tower barrel pieces 3 to ensure the sealing of the two concrete tower barrel pieces 3 after assembly. After the four concrete tower barrel pieces 3 are assembled into an annular tower section, when the annular tower section is hoisted and stacked, colloid is applied to the bottom surface of the assembly base 1 to strengthen the connection between the two stacked annular sleeve sections, and the colloid is stuck inside the groove body of the glue groove 14 and the through groove 15 to improve the firmness of the two annular tower sections after connection.

[0038] A splicing groove 4 is provided on the surface of the connecting column 2, and the splicing groove 4 is a "convex" shaped groove. The height of the splicing groove 4 is equal to the height of the connecting column 2. A reserved hole 5 is provided on the side wall of the splicing groove 4 close to the concrete tower tube piece 3, and the reserved hole 5 is a "convex" shaped circular hole. There are multiple reserved holes 5, and multiple reserved holes 5 are arranged at equal distances and sizes along the long side of the splicing groove 4. A screw 6 is inserted into the inside of the reserved hole 5. One end of the screw 6 passes through the reserved hole 5 and is screwed to the side wall of the concrete tower tube piece 3. The other end of the screw 6 is in the reserved hole 5. After the two connecting columns 2 at the ends of the assembled base 1 are brought together, the splicing grooves 4 on the surfaces of the two connecting columns 2 are assembled into an "I" shaped groove. A splicing strip 7 is inserted into the inside of the "I" shaped groove. The splicing strip 7 is an "I" shaped strip, and the height of the splicing strip 7 is equal to the height of the connecting column 2. After the concrete tower segment 3 is thrown between the two connecting columns 2, a hole is opened in the side wall of the concrete tower segment 3 through the reserved hole 5, and then the screw 6 is inserted into the hole in the side wall of the concrete tower segment 3 after passing through the reserved hole 5. When the four assembly bases 1 supporting the corresponding concrete tower segments 3 are placed on the bracket 16, the splicing strips 7 are inserted into the splicing grooves 4 on the surfaces of the two connecting columns 2. At this time, the splicing strips 7 not only cover the notches of the reserved holes 5, but also realize the traction connection of the two connecting columns 2, thereby preventing the two connecting columns 2 from separating in the horizontal direction.

[0039] A side groove 8 is provided on one side of the connecting column 2, and a cross bar 9 is fixed inside the side groove 8. A bolt 13 is inserted into the surface of the connecting column 2, and the bolt 13 is locked after passing through the cross bar 9 and the two connecting columns 2. The height of the side groove 8 is equal to the height of the connecting column 2. There are multiple cross bars 9, and multiple cross bars 9 are arranged at equal distances and sizes along the long side of the side groove 8. A limiting groove 10 is provided at one end of the cross bar 9 close to the side wall of the side groove 8. The limiting groove 10 is an annular groove. A reserved hole 2 11 is provided at the other end of the cross bar 9, and a reserved hole 3 12 is provided on the side wall of the side groove 8. The reserved hole 3 12 corresponds to the reserved hole 2 11 one by one. After the two assembled bases 1 are assembled, the bolt 13 passes through the reserved hole 3 12 and the reserved hole 2 11 and is locked. At this time, the two connecting columns 2 are connected by the bolt 13, and the two cross bars 9 are connected by the bolt 13. The cross bar 9 is installed on one side of the connecting column 2 to facilitate subsequent climbing of the tower. The cross bar 9 is used as a ladder, and after the bolts 13 pass through the cross bars 9 on the surfaces of the two connecting columns 2, the cross bar 9 cooperates with the bolts 13 to serve as the connecting structure of the two connecting columns 2. The connecting column 2 not only limits the position of the concrete tower tube segment 3, but also realizes the connection of the two concrete tower tube segments 3, and cooperates with the cross bar 9 to realize the ladder function. The connecting column 2 has multiple uses; and the cross bar 9 also meets the bolt limit of the lifting rope, and has richer functions.

[0040] After the four assembled bases 1 are assembled into a circular ring, they are inserted into the bracket 16. A plurality of spherical wheels 20 are fixed to the bottom end of the bracket 16. The bracket 16 is a circular ring frame with a "U"-shaped cross-section. The outer ring plate of the bracket 16 is provided with a reserved groove 17 on the inner ring surface. The reserved groove 17 is an annular groove. A rubber cover 18 is fixed between the top surface of the reserved groove 17 and the bottom surface of the reserved groove 17. The outer ring plate of the bracket 16 is screwed with a plurality of clamping screws 19 on the outer ring surface. After the clamping screw 19 pushes the rubber cover 18, the rubber cover 18 is clamped between the clamping screw 19 and the assembled base 1. After the assembled base 1 is placed into the bracket 16, the clamping screw 19 is screwed to push the rubber cover 18 to clamp the surface of the assembled base 1 to prevent the assembled base 1 from shifting in the bracket 16. The assembled base 1 not only serves as a supporting structure for the concrete tower segment 3, but also serves as a pad and limiter for the concrete tower segment 3 to be placed in the bracket 16. When the concrete tower segment 3 is transferred to the construction site, the assembled base 1 serves as a stacking and connecting structure for two adjacent annular tower segments, that is, the assembled base 1 is used for one thing.

[0041] After the concrete tower drum piece 3 is unloaded from the truck, the concrete tower drum piece 3 is hoisted onto the assembled base 1 between the two connecting columns 2. After the four concrete tower drum pieces 3 are put in, the bracket 16 is placed on the ground, and the spherical wheel 20 is braked with the help of pads. Then, the four assembled bases 1 are placed in the bracket 16, and the bolts 13 are passed through the cross bars 9 on the surfaces of the two connecting columns 2 close together and then locked to achieve the connection and fixation of the two adjacent groups of assembled bases 1 and connecting columns 2. The pads are removed, and the bracket 16 is towed by the traction equipment to be transferred to the tower construction site. Then, the clamping screw 19 is loosened to no longer clamp the assembled base 1, and the connected assembled base 1 and connecting column 2 are hoisted to a high altitude and stacked on the installed tower. The bracket 16 is a detachable structure and does not participate in the hoisting and stacking work.

[0042] The advantages of the concrete tower assembly mechanism proposed in this scheme compared with the concrete tower assembly mechanism in the existing technology are summarized in the form of tables:

[0043]

[0044]

[0045] Through the comparative analysis of the above table, it can be clearly seen that the concrete tower assembly mechanism proposed in this scheme has significant advantages over the concrete tower assembly mechanism in the existing technology, including more stable structural design, more efficient construction efficiency and stronger stacking connection firmness.

[0046] Example 2, based on Example 1, proposes a construction method of the concrete tower assembly mechanism according to claim 5, comprising the following steps:

[0047] 1. Preliminary Preparation

[0048] Equipment and material inspection: Check whether the assembled base 1, connecting column 2, concrete tower tube 3, splicing strip 7, bolt 13, screw 6 and other components are complete and undamaged; check whether the bracket 16 and its accessories (spherical wheel 20, rubber cover 18, clamping screw 19, etc.) are intact.

[0049] Tool preparation: Prepare necessary tools such as drilling tools, wrenches, and traction equipment.

[0050] 2. Install the concrete tower segment 3 to the assembly base 1

[0051] Place the assembly base 1: Place the four assembly bases 1 in a suitable position so that they are arranged in a ring. The assembly base 1 is an "L"-shaped arc plate with a 90-degree arc.

[0052] Hoisting the concrete tower segment 3: Hoist the concrete tower segment 3 onto the assembly base 1 between the two connecting columns 2. The connecting columns 2 are L-shaped plate structures, symmetrically distributed about the assembly base 1, and the connecting columns 2 and the concrete tower segment 3 are at equal height. The concrete tower segment 3 is an arc-shaped plate structure, with its ends resting on one side of the two connecting columns 2.

[0053] Drilling and Installing Screws 6: After the concrete tower segment 3 is cast between the two connecting columns 2, use a drilling tool to drill holes through the pre-set holes 5 in the sidewall of the concrete tower segment 3. The pre-set holes 5 are circular, "convex"-shaped holes located on the sidewall of the splicing slot 4 near the concrete tower segment 3. Multiple pre-set holes 5 are evenly spaced and sized along the long side of the splicing slot 4. Screws 6 are then inserted through the pre-set holes 5 and into the holes in the sidewall of the concrete tower segment 3. One end of the screw 6 penetrates the pre-set holes 5 and is screwed to the sidewall of the concrete tower segment 3, while the other end resides in the pre-set holes 5.

[0054] 3. Connection of connecting column 2

[0055] Installation of Splicing Bar 7: After the four assembled bases 1 supporting the corresponding concrete tower segments 3 are properly positioned, bring the connecting columns 2 at the ends of two assembled bases 1 together. The splicing grooves 4 on the surfaces of the two connecting columns 2 now form an "I"-shaped groove. Insert the splicing bar 7 into the "I"-shaped groove. The splicing bar 7 forms an "I"-shaped strip, with a height equal to that of the connecting columns 2. The splicing bar 7 not only covers the notch of the reserved hole 1 5 but also provides a pulling connection between the two connecting columns 2, preventing them from separating horizontally.

[0056] 4. Installation of crossbar 9 and bolts 13

[0057] Installation of crossbar 9: A side groove 8 is provided on one side of the connecting column 2, and a crossbar 9 is fixed inside the side groove 8. There are multiple crossbars 9, which are arranged at equal distances and sizes along the long side of the side groove 8. A limit groove 10 is provided on one end of the crossbar 9 close to the side wall of the side groove 8, and a reserved hole 11 is provided on the other end.

[0058] Bolt 13 Installation: After assembling the two assembly bases 1, insert bolt 13 through reserved hole 3 12 (in the sidewall of side groove 8) and reserved hole 2 11 and tighten. Reserved hole 3 12 corresponds to reserved hole 2 11. The two connecting columns 2 are now connected by bolts 13, and the two crossbars 9 are also connected by bolts 13. Crossbar 9 is installed on one side of the connecting column 2 to facilitate subsequent climbing of the tower, serving as a ladder.

[0059] 5. Installation and Fixing of Bracket 16

[0060] Place the bracket 16: Place the bracket 16 on the ground. The bracket 16 is a circular frame with a "U"-shaped cross section, and a plurality of spherical wheels 20 are fixed to the bottom end of the bracket 16.

[0061] Assembling the base 1 into the bracket 16: Assemble the four connected assembly bases 1 into a ring and insert it into the bracket 16.

[0062] Secure the assembly base 1: Twist the clamping screw 19 to push the rubber cover 18 against the surface of the assembly base 1 to prevent the assembly base 1 from shifting in the bracket 16. The reserved groove 17 is opened on the inner ring surface of the outer ring plate of the bracket 16. It is an annular groove with the rubber cover 18 fixed between the top and bottom surfaces. The outer ring surface of the outer ring plate is screwed with multiple clamping screws 19.

[0063] 6. Transfer and hoisting

[0064] Transfer to the construction site: After placing the bracket 16 on the ground, brake the spherical wheels 20 with skids, and then place the four assembled bases 1 in the bracket 16. Bolts 13 are inserted through the crossbars 9 on the surfaces of two adjacent connecting columns 2 and tightened to connect and secure the two adjacent sets of assembled bases 1 and connecting columns 2. Remove the skids, and use a towing device to tow the bracket 16 to the tower construction site.

[0065] Hoisting and stacking: After arriving at the construction site, loosen the clamping screw 19 to no longer clamp the assembled base 1, and hoist the connected assembled base 1 and connecting column 2 to a high altitude and stack them on the installed tower.

[0066] The specific construction process is:

[0067] 1. Evenly measure the installation groove elevation (more than 16 places) on the installation groove of the foundation ring segment (i.e. a group of assembled tower ring segments on the ground). The installation groove elevation is processed according to the actual elevation to ensure the flatness of the pad placement point. First, place the corresponding number of steel pads 200*200*20mm thick steel plate pads, and then use 120*120*1 / 2 / 4mm pads for leveling. There are no more than 3 pads and no less than 1 pad at each location. The elevation range of the upper edge of each pad is less than 1mm. The thickness of the highest point pad is 20mm, and the thickness of the lowest point pad is ≤25mm.

[0068] 2. Clean the bottom of the ring to ensure that it meets the seat slurry requirements, install the universal lifting ring and the positioning pin.

[0069] 3. According to the axis of the foundation part, the first ring tube section is placed (the midpoint of the door opening is used as the basis for verifying the size of the bottom pipe segment placement). The center of the door opening should first coincide with the 0-degree axis of the foundation, and the upper and lower diameters of the ring tube should be remeasured to confirm that there is no deformation, and then the foundation grouting is carried out.

[0070] 4. Place a temporary construction platform A inside the first ring section;

[0071] 5. Level the top of the first ring, that is, use a level or a sweeper to evenly measure the flatness of the top of the cylinder section. According to the actual flatness, at the top of the cylinder section, with the ring positioning groove as the starting point, evenly place more than 12 pads (no more than 3 and no less than 1 at each location), with a 2mm plastic pad at the highest point and no more than 8mm pad at the lowest point. Use a marker to mark the position of the shim and the horizontal height difference inside the ring to ensure that the extreme difference in flatness of the top of each pad is less than 1mm.

[0072] 6. Lift the second ring and place the second ring section according to the position of the positioning pin. Check the ladder position, lightning protection grounding point, and whether the positioning marks are consistent. Check that the misalignment between the first ring and the second ring is no more than 10mm. After checking that it meets the requirements, lift the second ring and apply glue to the seat.

[0073] 7. For the seat slurry on the upper mouth of the cylinder section, open the two components of epoxy glue in a ratio of 3:1 and mix them thoroughly. The mixing time should be no less than 3 minutes to fully blend the two components. It is strictly forbidden to use without sufficient mixing. It should be used immediately after the mixing is completed. Use a toothed shovel to smooth it and apply it evenly. The thickness of the application should not be less than the thickness of the thickest leveling gasket (the seat slurry should be at least 2-3mm higher than the gasket) to prevent hollowing in the middle and water leakage in the later stage. When applying, in order to prevent the slurry from accumulating and overflowing too much, chamfer the outermost and innermost 10mm. Seal the hanging mouth with a plastic pad and apply epoxy glue to it. Apply three centimeters of epoxy glue around the other pads.

[0074] 8. Position the ring tube. When the ring tube is positioned to the same height as the construction workers, it is necessary to apply structural adhesive to the joints at the bottom of the ring tube to prevent the bottom of the joint from being filled loosely. After applying, insert the two positioning pins into the positioning holes. At this time, the ring tube has not yet fallen on the adhesive surface. Slowly lower the ring tube until there is a 1-2cm gap with the structural adhesive. Observe whether the upper and lower ring tubes are misaligned. If necessary, correct the ring tube to ensure that the upper and lower ring tubes are aligned without bosses and slowly position them vertically. After positioning, slurry overflows at each position. After positioning, the slurry slowly overflows from the inner and outer seams. After positioning is completed, clean up the structural adhesive that overflows from the inner seam in time, scrape it off and collect it in an empty bucket to avoid too much of it falling onto the foundation. While scraping, apply slurry to the upper and lower vertical seams of the ring tube to strengthen the connection at the joints to ensure that the connection of the ring tube is dense. Finally, the horizontal seams need to be caulked.

[0075] 9. Measure the tower. The point where the two main axes of the 0-degree and 90-degree positions intersect is used as the foundation and the center point of the tower. After every four cylinder sections are installed, randomly draw a line through the center of the cylinder section to find the center of the cylinder section. Use a laser plumb line or plumb bob to find the positional relationship between the two points.

[0076] 10. Use the same method to hoist the remaining sections of the tower.

[0077] 7. Prestressed tensioning construction

[0078] 1. After the tower stacking construction is completed, the steel strand is put into the tower, and the steel strand is clamped with a loose-opening single-hole tool anchor. The clamping position is 50 cm from the end of the steel strand. The single-hole tool anchor is clamped on the traction system wire rope with a wire rope buckle. The steel strand head is wrapped on the wire rope with tape. When pulling upward, it is stuck to the pipe wall. Start the winch and pull the steel strand upward. After pulling it to the highest point, reverse the lower end of the steel strand head to the anchor, then drop the steel strand a little, pass the upper end of the steel strand through the anchor, tighten the clip, remove the single-hole anchor, complete the installation of one steel strand, and continue to pull the lower end upward for installation.

[0079] 2. After the steel strand is pulled to the top, clamp the steel strand bundle with a temporary cable clamp to prevent it from sliding down, remove the lifting joint, install the upper working anchor plate in place according to the steel strand hole arrangement, tighten the working clip, and install the butterfly spring and temporary anti-loosening pressure plate. Slowly loosen the rope of the winch to press the working anchor plate on the anchor pad and align it with the notch.

[0080] 3. After the upper anchor conversion is completed, since the lower end cable is still at the tower door, the steel strand needs to be reversed into the lower end embedded pipe. First, install a cable clamp on the cable above the embedded pipe to clamp all the steel strands. Then use a winch to lift the steel strand until the end of the lower end steel strand is higher than the anchor plate. Guide the steel strand into the embedded pipe. Slowly loosen the rope with the winch to prevent the steel strand from loosening and remove the cable clamp.

[0081] 4. Before overall tensioning, first use a small top single pre-tightened steel strand to ensure that each steel strand is evenly stressed, and then tension the entire bundle. The entire bundle tensioning requires two sets of equipment and is carried out symmetrically around the tower column.

[0082] 5. All tensioning jacks must be calibrated as required before tensioning. Tensioning equipment 18 must be used and maintained by dedicated personnel. Tensioning equipment that is not used for a long period of time must be fully calibrated before use. When the jack is used for a period of time or tensioning times exceeding the specified time, or when any abnormality occurs during use, a calibration is required to ensure accurate force measurement.

[0083] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A concrete tower assembly mechanism, comprising four assembly bases (1), characterized in that: Connecting columns (2) are fixed at both ends of the assembly base (1), a concrete tower barrel piece (3) is inserted between the two connecting columns (2), a side groove (8) is opened on one side of the connecting column (2), a cross bar (9) is fixed inside the side groove (8), a bolt (13) is inserted on the surface of the connecting column (2), and the bolt (13) is locked after passing through the cross bar (9) and the two connecting columns (2). The four assembly bases (1) are assembled into a ring and inserted into the bracket (16), and a plurality of spherical wheels (20) are fixed at the bottom end of the bracket (16).

2. A concrete tower assembly mechanism according to claim 1, characterized in that: The assembly base (1) is an L-shaped arc plate, the arc of the assembly base (1) is ninety degrees, the connecting column (2) is an L-shaped plate structure, the two connecting columns (2) are symmetrically distributed about the assembly base (1), the connecting column (2) and the concrete tower barrel piece (3) are equal in height, the concrete tower barrel piece (3) is an arc-shaped plate structure, and the two ends of the concrete tower barrel piece (3) respectively abut against one side of the two connecting columns (2), and the bottom surface of the assembly base (1) is provided with a glue groove (14), the glue groove (14) is a circular arc groove, there are two glue grooves (14), the sizes of the two glue grooves (14) are different, and a plurality of through grooves (15) are provided between the two glue grooves (14), and the through grooves (15) are "Z"-shaped grooves.

3. A concrete tower assembly mechanism according to claim 2, characterized in that: The surface of the connecting column (2) is provided with a splicing groove (4), the splicing groove (4) is a "convex" shaped groove, the height of the splicing groove (4) is equal to the height of the connecting column (2), and a reserved hole (5) is provided on the side wall of the splicing groove (4) close to the concrete tower tube piece (3), the reserved hole (5) is a "convex" shaped circular hole, a plurality of the reserved holes (5) are arranged and distributed at equal distances and sizes along the long side of the splicing groove (4), and a screw is inserted into the inside of the reserved hole (5). (6), one end of the screw rod (6) passes through the reserved hole (5) and is screwed to the side wall of the concrete tower tube (3), and the other end of the screw rod (6) is in the reserved hole (5). After the two connecting columns (2) at the ends of the assembled base (1) are close together, the splicing grooves (4) on the surfaces of the two connecting columns (2) are assembled into an "I"-shaped groove, and a splicing strip (7) is inserted into the inside of the "I"-shaped groove. The splicing strip (7) is an "I"-shaped strip, and the height of the splicing strip (7) is equal to the height of the connecting column (2).

4. A concrete tower assembly mechanism according to claim 3, characterized in that: The height of the side groove (8) is equal to the height of the connecting column (2). A plurality of cross bars (9) are provided. The plurality of cross bars (9) are arranged and distributed at equal distances and in equal sizes along the long side of the side groove (8). A limiting groove (10) is provided at one end of the cross bar (9) close to the side wall of the side groove (8). The limiting groove (10) is an annular groove. A second reserved hole (11) is provided at the other end of the cross bar (9). A third reserved hole (12) is provided on the side wall of the side groove (8). The third reserved hole (12) corresponds to the second reserved hole (11) in a one-to-one manner. After the two assembled bases (1) are assembled, the bolts (13) pass through the third reserved hole (12) and the second reserved hole (11) and are locked. At this time, the two connecting columns (2) are connected by the bolts (13), and the two cross bars (9) are connected by the bolts (13).

5. The concrete tower assembly mechanism according to claim 4, characterized in that: The bracket (16) is a circular frame with a U-shaped cross section. The outer ring plate of the bracket (16) is provided with a reserved groove (17) on the inner ring surface. The reserved groove (17) is an annular groove. A rubber cover (18) is fixed between the top surface of the reserved groove (17) and the bottom surface of the reserved groove (17). The outer ring plate of the bracket (16) is screwed with a plurality of clamping screws (19) on the outer ring surface. After the clamping screws (19) push the rubber cover (18), the rubber cover (18) is clamped between the clamping screws (19) and the assembly base (1).

6. A construction method for a concrete tower assembly mechanism according to claim 5, characterized in that: The following steps are involved: After the concrete tower drum piece (3) is unloaded from the truck, the concrete tower drum piece (3) is hoisted onto the assembly base (1) between the two connecting columns (2). After all four concrete tower drum pieces (3) are placed, the bracket (16) is placed on the ground, and the spherical wheel (20) is braked with the help of a block, and then the four assembly bases (1) are placed in the bracket (16). The bolts (13) are passed through the cross bars (9) on the surfaces of the two connecting columns (2) close together and then locked to achieve the connection and fixation of the two adjacent groups of assembly bases (1) and the connecting columns (2). The block is removed, and the bracket (16) is towed by a towing device to be transferred to the tower construction site. The connected assembly bases (1) and connecting columns (2) are hoisted to a high altitude and stacked on the installed tower.

7. The construction method of a concrete tower assembly mechanism according to claim 6, characterized in that: After the concrete tower barrel piece (3) is placed between the two connecting columns (2), the two connecting columns (2) are protected on both sides of the concrete tower barrel piece (3) to prevent the two sides of the concrete tower barrel piece (3) from being damaged, and the connecting columns (2) are connected between the concrete tower barrel pieces (3), ensuring the sealing of the two concrete tower barrel pieces (3) after being assembled. When the four concrete tower barrel pieces (3) are assembled into an annular tower barrel section, when the annular tower barrel section is hoisted and stacked, a colloid is applied to the bottom surface of the assembly base (1) to reinforce the connection between the two stacked annular sleeve sections, and the colloid is inserted into the groove bodies of the glue groove (14) and the through groove (15), thereby improving the firmness of the two annular tower barrel sections after being connected.

8. The construction method of a concrete tower assembly mechanism according to claim 7, characterized in that: After the concrete tower barrel piece (3) is thrown between the two connecting columns (2), a hole is opened in the side wall of the concrete tower barrel piece (3) through the reserved hole (5), and then the screw (6) is inserted into the hole in the side wall of the concrete tower barrel piece (3) after passing through the reserved hole (5). After four assembly bases (1) supporting the corresponding concrete tower barrel pieces (3) are placed on the bracket (16), the splicing strip (7) is inserted into the splicing groove (4) on the surface of the two connecting columns (2). At this time, the splicing strip (7) not only covers the notch of the reserved hole (5), but also realizes the traction connection of the two connecting columns (2), thereby preventing the two connecting columns (2) from being separated in the horizontal direction.

9. The construction method of a concrete tower assembly mechanism according to claim 8, characterized in that: The cross bar (9) is installed on one side of the connecting column (2) to facilitate subsequent climbing of the tower. The cross bar (9) serves as a ladder, and after the bolts (13) pass through the cross bars (9) on the surfaces of the two connecting columns (2), the cross bar (9) cooperates with the bolts (13) to serve as a connecting structure of the two connecting columns (2). The connecting column (2) not only limits the position of the concrete tower barrel piece (3), but also connects the two concrete tower barrel pieces (3), and cooperates with the cross bar (9) to realize the ladder function. The connecting column (2) has multiple uses.

10. The construction method of a concrete tower assembly mechanism according to claim 9, characterized in that: After the assembling base (1) is placed on the bracket (16), the clamping screw (19) is screwed to push the rubber cover (18) to clamp the surface of the assembling base (1) to prevent the assembling base (1) from deflecting in the bracket (16). The assembling base (1) not only serves as a supporting structure for the concrete tower barrel piece (3), but also serves as a pad and limiter for the concrete tower barrel piece (3) to be placed in the bracket (16). When the concrete tower barrel piece (3) is transferred to the construction site, the assembling base (1) serves as a stacking connection structure for two adjacent annular tower barrel sections, that is, the assembling base (1) is used for one thing.

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