Intelligent tensioning and maintaining device for external prestress steel strand of mixed tower body and using method of intelligent tensioning and maintaining device

Abstract

The invention provides a mixed tower body external prestressed steel strand intelligent tensioning maintenance device and a using method thereof.The lower portion of a tower body is provided with an integrated operation platform, the integrated operation platform is internally provided with an annular guide rail, the guide rail is slidably connected with a moving table, one side of the moving table is provided with a moving assembly, and the moving assembly comprises an arc-shaped table, a connecting piece and a lifting plate; one end of the connecting piece is fixed to the moving table, the moving table drives the arc-shaped table to rotate through the connecting piece, a through hole for a steel strand rope to penetrate is formed in the lifting plate, a pouring assembly is further arranged on the arc-shaped table, a thermal insulation pipe is arranged on the outer side of the steel strand rope, the pouring assembly comprises a lifting pipe, and the lifting pipe can be filled with or pull out a phase change material in the thermal insulation pipe. Automatic cutting of the steel strand rope is achieved, the quality of the cutting face is improved, the thermal insulation pipe and the phase-change material are used in cooperation, the characteristics that the phase-change material absorbs heat at the high temperature and releases heat at the low temperature are utilized, deformation of the steel strand rope caused by the too large morning and evening temperature difference is avoided, the service life of the steel strand rope is prolonged, and prestress loss is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and in particular to a mixed tower body external prestressed steel strand intelligent tensioning and maintenance device and a use method thereof. BACKGROUND

[0002] The mixed tower body external prestressed steel strand is a core load-bearing component of large-span high-rise structures such as wind power towers and bridge tower columns, and the tensioning precision and long-term stability thereof directly determine the service life of the structure. However, the existing mixed tower lacks some maintenance functions after the tensioning of the steel strand, which affects the service life of the structure.

[0003] Firstly, the exposed overlength section needs to be cut off after the tensioning of the steel strand, and the quality of the manually cut surface fluctuates greatly, and defects such as roughness and burrs exist. Research shows that the roughness of the cutting surface forms a local stress concentration point, which accelerates the initiation of fatigue cracks. The combination of the oxide layer and the subsequent protective coating is only 40% of that of the substrate due to the damage of the oxide layer, which becomes a preferential channel for chloride ion penetration. Moreover, the cutting operation in the tower is carried out in a closed environment, which makes the cutting operation environment very poor and threatens the health of the workers.

[0004] Secondly, the mixed tower structure is mostly built on a plateau or in a cold region with a temperature difference of more than 40℃ (such as 35℃ during the day and -10℃ at night), and the steel strand will periodically deform due to its linear expansion coefficient (11.7x10 -6 / ℃). The existing maintenance equipment lacks a temperature compensation mechanism, and the steel strand is in a free expansion state after the anchor is locked, and the repeated deformation causes the accumulation of micro-slippage between the clamping piece and the anchor hole, resulting in serious loss of prestress. More seriously, due to the coupling effect of temperature difference cycle and stress, the oxide layer of the steel strand peels off at a faster rate, and the exposed base metal quickly rusts in a humid environment, directly threatening the fatigue resistance of the structure. SUMMARY

[0005] The purpose of the present application is to overcome the shortcomings of the prior art and provide a mixed tower body external prestressed steel strand intelligent tensioning and maintenance device that can solve the problems of poor steel strand cutting quality and temperature difference deformation.

[0006] To this end, the present application adopts the following technical solutions: The application discloses a mixed-tower intelligent tensioning and maintaining device for prestressed steel strands outside a tower body, a plurality of steel strands are arranged in a circle in the tower body, an integrated operation platform is arranged at the lower part of the tower body, a circular guide rail is arranged in the integrated operation platform, a moving table is slidably connected to the guide rail, a moving assembly is arranged on one side of the moving table, the moving assembly comprises an arc-shaped table, a connecting piece and a lifting plate, one end of the connecting piece is fixed to the moving table, the moving table drives the arc-shaped table to rotate through the connecting piece, the lifting plate is connected to the arc-shaped table, a through hole is arranged on the lifting plate and can be penetrated by the steel strands, a cleaning assembly is further arranged on the lifting plate, the cleaning assembly comprises a cutter for cutting the steel strands and a cleaning brush for cleaning the cutting surface, a pouring assembly is further arranged on the arc-shaped table, a temperature insulation pipe is arranged on the outer side of the steel strands, and the pouring assembly comprises a lifting pipe which can fill or separate phase change materials in the temperature insulation pipe.

[0007] On the basis of the above technical scheme, the application can further adopt the following technical scheme, or the further technical schemes are combined for use. The lower tower body is located in the integrated operation platform, the guide rail is arranged around the lower tower body, a tooth ring is arranged on the outer wall of the lower tower body, and a motor one is arranged in the moving table.

[0008] The moving assembly further comprises a hydraulic drive mechanism one fixed to one side of the moving table, and a hydraulic rod output end of the hydraulic drive mechanism one is fixedly connected with the arc-shaped table.

[0009] The connecting piece is a limiting rail, and a limiting sliding block matched with the limiting rail is fixed to the arc-shaped table.

[0010] A supporting plate is fixed to the side surface of the limiting sliding block, and the moving assembly further comprises an electric push rod mechanism one, the electric push rod mechanism one is fixed to the supporting plate, and an electric push rod output end of the electric push rod mechanism one is fixedly connected with the lifting plate.

[0011] A waste frame is fixed to the lower surface of the lifting plate, and the opening of the waste frame is aligned with the position of the through hole.

[0012] The cleaning assembly further comprises a hydraulic drive mechanism two, a sliding sleeve, a limiting rod, a motor two, an electric push rod mechanism two, a positioning block, a cleaning brush, a positioning sleeve, the limiting rod is fixed between the two side rib plates below the lifting plate, the hydraulic drive mechanism two is fixed on the side of one side rib plate below the lifting plate, the hydraulic rod output end of the hydraulic drive mechanism two is fixed on the side of the sliding sleeve, the sliding sleeve is located between the two limiting rods, the electric push rod mechanism two is fixed in the inner cavity bottom of the sliding sleeve, the electric push rod output end of the electric push rod mechanism two is fixed with the motor two through a pressure plate, the output end of the motor two is connected with the cutter, the top center of the cutter is fixed with the positioning block, the cleaning brush is fixed on the lifting plate, the cleaning brush is located on the side of the through hole, the lower surface of the cleaning brush is fixed with the positioning sleeve, and the positioning block can be embedded with the positioning sleeve.

[0013] The perfusion assembly is located on one side of the cleaning assembly, and the perfusion assembly further comprises a storage box, a glue pump, a spiral pipeline, a limiting frame, a rack, a motor three and a gear two, the storage box, the glue pump and the limiting frame are fixed on the arc table respectively, the bottom of the storage box is connected with the spiral pipeline, the other end of the spiral pipeline is connected to the lifting pipe, the spiral pipeline is further connected with the glue pump, the lifting pipe is slidingly connected in the limiting frame, one side of the lifting pipe is fixed with the rack, the upper end of the limiting frame is fixed with the motor three, the output end of the motor three is connected with the gear two, and the gear two is engaged with the rack.

[0014] The lower part of the temperature insulation pipe is connected with a liquid pipeline, the lower end of the liquid pipeline is provided with a sealing plug, the sealing plug is fixed with a lifting needle, the upper part of the lifting needle is slidingly connected to the center of a cross limiting plate, a spring is sleeved on the lifting needle, and the two ends of the spring are connected with the sealing plug and the cross limiting plate respectively, the upper end of the lifting pipe is fixed with an alloy plate, the middle part of the alloy plate is provided with an abutting portion, and the center of the abutting portion corresponds to the position of the lifting needle.

[0015] The purpose of the present application is also to overcome the shortcomings of the prior art, and to provide a use method of the intelligent tensioning and maintenance device for the outer prestressed steel strand of the mixed tower body, which can solve the problems of poor cutting quality and temperature difference deformation of the steel strand.

[0016] To this end, the present application adopts the following technical solutions: The use method of the intelligent tensioning and maintenance device for the outer prestressed steel strand of the mixed tower body comprises the following steps: S1, the steel strand cutting: after the steel strand is tensioned, before the sealing maintenance, the motor one in the moving station is started, thereby driving the gear one to rotate, the gear one is engaged with the gear ring, thereby driving the moving station to move along the direction of the guide rail, thereby driving the moving assembly, the cleaning assembly, the pouring assembly to move synchronously, the hydraulic drive mechanism one is started, the arc-shaped table is pushed to the lower side of the steel strand, whenever the through hole is aligned with the steel strand above, the motor one is paused, the electric push rod mechanism one is started, the lifting plate is pushed to rise, the part of the steel strand to be cut is placed in the through hole, the electric push rod mechanism two is started, the positioning block is pushed out of the positioning sleeve, the hydraulic drive mechanism two is started, the sliding sleeve is pushed to move to the direction of the through hole, the motor two is started to make the cutter rotate, thereby cutting the steel strand; S2, the steel strand cleaning: after the steel strand is cut in sequence, the sliding sleeve and the positioning block are reset, at this time, the motor two is started to drive the cleaning brush to rotate through the positioning block and the positioning sleeve, the cleaning brush is used for cleaning the cutting surface of the steel strand; S3, the sealing maintenance: after the steel strand is cleaned, the sealing isolation box is installed on the outer side of the anchor plate, and the cleanable anticorrosive liquid is poured in the inside; S4, the phase change material filling: after the steel strand is sealed, the melted phase change material is filled in the storage box, when the lifting pipe is located below the liquid pipe, the motor three is started, thereby driving the gear two to rotate, thereby driving the rack and the lifting pipe to move upward, the abutting portion of the alloy plate abuts against the lifting needle, thereby making the lifting needle drive the sealing plug to move upward, the upper end of the lifting pipe enters the liquid pipe, the glue pump is started, the phase change material in the storage box is extruded into the liquid pipe and is transmitted to fill the gap between the temperature insulation pipe and the steel strand, so that the deformation of the steel strand caused by the large temperature difference between morning and evening is avoided.

[0017] Compared with the prior art, the present application has the following advantages and beneficial effects: the automatic cutting of the steel strand is realized, the cutting surface quality and the cutting stability are improved, the temperature insulation pipe and the phase change material are used in cooperation, the characteristics of the phase change material are used, that is, the phase change material absorbs heat at high temperature and releases heat at low temperature, so that the deformation of the steel strand caused by the large temperature difference between morning and evening is avoided, the service life of the steel strand is prolonged, and the prestress loss is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic diagram in the present application; Figure 2 is the overall cross-sectional schematic diagram in the present application; Figure 3 is the position schematic diagram of the moving station in the present application; Figure 4 is the lower view schematic diagram of the moving station in the present application; Figure 5 is the cross-sectional schematic diagram of the moving station in the present application; Figure 6is a position diagram of the liquid pipeline in the application; Figure 7 is a structure diagram of the moving assembly in the application; Figure 8 is a structure diagram of the lifting plate in the application; Figure 9 is a sectional view diagram of the lifting plate in the application; Figure 10 is a sectional view diagram of the sliding sleeve in the application; Figure 11 is a structure diagram of the perfusion assembly in the application; Figure 12 is a structure diagram of the limiting frame in the application; Figure 13 is a structure diagram of the liquid pipeline in the application; Figure 14 is a sectional view diagram of the liquid pipeline in the application. DETAILED DESCRIPTION

[0019] In order for those skilled in the art to better understand the technical solutions of the present application, the preferred embodiments of the present application are described below in combination with specific examples, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar functions throughout the drawings, but it should be understood that the drawings are only for illustrative purposes and cannot be understood as a limitation on the present application; in order to better illustrate the present embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions may be omitted, and the positional relationship described in the drawings is only for illustrative purposes and cannot be understood as a limitation on the present application.

[0020] The present application is further described below in combination with the drawings and examples, but it is not used as a basis for limiting the present application.

[0021] The application provides a mixed tower body in-vitro prestressed steel strand intelligent tensioning and maintaining device, a plurality of steel strand ropes 11 are arranged in a circle in a tower body 10, an integrated operation platform is arranged at the lower part of the tower body 10, a circular guide rail 12 is arranged in the integrated operation platform, a moving table 13 is slidably connected to the guide rail 12, a moving assembly 20 is arranged on one side of the moving table 13, the moving assembly 20 comprises an arc-shaped table 22, a connecting piece 23 and a lifting plate 25, one end of the connecting piece 23 is fixed to the moving table 13, the moving table 13 drives the arc-shaped table 22 to rotate through the connecting piece 23, the lifting plate 25 is connected to the arc-shaped table 22, a through hole 27 through which the steel strand rope 11 can pass is arranged on the lifting plate 25, a cleaning assembly 30 is further arranged on the lifting plate 25, the cleaning assembly 30 comprises a cutter 36 for cutting the steel strand rope 11 and a cleaning brush 38 for cleaning the cutting surface, a pouring assembly 40 is further arranged on the arc-shaped table 22, a temperature insulation pipe 51 is arranged on the outer side of the steel strand rope 11, and the pouring assembly 40 comprises a lifting pipe 44 which can fill or remove phase change materials in the temperature insulation pipe 51.

[0022] The lower tower body 17 of the tower body 10 is located in the integrated operation platform, the guide rail 12 is arranged around the lower tower body 17, a gear ring 16 is arranged on the outer wall of the lower tower body 17, a motor one 14 is arranged in the moving table 13, a gear one 15 is power-connected to the output shaft of the motor one 14, and the gear one 15 is engaged with the gear ring 16.

[0023] It should be noted that universal wheels are arranged at the lower ends of the moving table 13, and rollers are also hingedly connected to the portions of the moving table 13 which are in contact with the inner cavity walls of the guide rail 12, so as to improve the smoothness of the moving table 13 in the guide rail 12. A rotating shaft (not shown in the figure) is arranged at the lower end of the gear one 15, so as to improve the stability of the rotation of the gear one 15 and avoid the gear one 15 from being separated from the moving table 13, thereby affecting the movement of the moving table 13.

[0024] The moving assembly 20 further comprises a hydraulic drive mechanism one 21 fixed to one side of the moving table 13, and the hydraulic rod output end of the hydraulic drive mechanism one 21 is fixedly connected with the arc-shaped table 22.

[0025] The connecting piece 23 is a limiting rail, and a limiting sliding block 28 matched with the limiting rail is fixed to the arc-shaped table 22.

[0026] It should be noted that a round long rod is arranged in the inner cavity of the limiting rail, and the portion of the limiting sliding block 28 in the inner cavity of the limiting rail is movably sleeved on the outer circle of the round long rod. Universal wheels are also arranged at the lower ends of the arc-shaped table 22, so as to ensure the stability of the movement of the arc-shaped table 22.

[0027] In order to ensure the normal operation of the electrical elements on the arc-shaped table 22, a power storage device needs to be additionally arranged on the arc-shaped table 22, and the power storage device is electrically connected with the moving table 13.

[0028] During position adjustment, hydraulic rod 21 pushes the arc-shaped platform 22 to move and adjust its position, thereby adjusting the position of the lifting plate 25 and the cutter 36 relative to the steel strand 11. Once the position is adjusted, electric actuator 24 operates, pushing the lifting plate 25 upward so that it fits over the outside of the steel strand 11. At this time, the cutter 36 also rises along with the lifting plate 25 until the preset cutting height is reached, ready for the cutting operation.

[0029] The side of the limiting slider 28 is fixed with a support plate. The moving component 20 also includes an electric actuator mechanism 24, which is fixed on the support plate. The output end of the electric actuator mechanism 24 is fixedly connected to the lifting plate 25.

[0030] A waste frame 26 is fixed below the lifting plate 25, and the opening of the waste frame 26 is aligned with the position of the through hole 27.

[0031] The cleaning assembly 30 also includes a second hydraulic drive mechanism 31, a sliding sleeve 32, a limiting rod 33, a second motor 34, a second electric push rod mechanism 35, a positioning block 37, a cleaning brush 38, and a positioning sleeve 39. The limiting rod 33 is fixed between the two side ribs below the lifting plate 25. The second hydraulic drive mechanism 31 is fixed to the side of one of the side ribs below the lifting plate 25. The hydraulic rod output end of the second hydraulic drive mechanism 31 is fixed to the side of the sliding sleeve 32. The sliding sleeve 32 is located between the two limiting rods 33. The second electric push rod mechanism 35 is fixed to the bottom of the inner cavity of the sliding sleeve 32. The electric push rod output end of the second electric push rod mechanism 35 is fixed to the second motor 34 through a pressure plate. The output end of the second motor 34 is powered to the cutter 36. A positioning block 37 is fixed at the center of the top surface of the cutter 36. A cleaning brush 38 is fixed on the lifting plate 25. The cleaning brush 38 is located on one side of the through hole 27. A positioning sleeve 39 is fixed below the cleaning brush 38. The positioning block 37 can fit into the positioning sleeve 39.

[0032] To ensure the normal operation of the electric actuator 35, the sliding sleeve 32 and the power storage device of the arc platform 22 need to be electrically connected through the elastic cable. Under normal conditions, the elastic cable should be kept below the through groove of the lifting plate 25 to avoid affecting the entry of the steel strand rope 11 into the through groove. The material of the cutter 36 is preferably a high-strength alloy, and in this embodiment, it is preferably a tungsten-molybdenum alloy, in order to ensure that the cutter 36 can smoothly perform the cutting operation of the steel strand 11.

[0033] The filling assembly 40 is located on one side of the cleaning assembly 30. The filling assembly 40 also includes a storage tank 41, a glue pump 42, a spiral pipe 43, a limit frame 45, a rack 46, a third motor 47, and a second gear 48. The storage tank 41, glue pump 42, and limit frame 45 are respectively fixed on the arc-shaped platform 22. The bottom of the storage tank 41 is connected to the spiral pipe 43, and the other end of the spiral pipe 43 is connected to the lifting pipe 44. The spiral pipe 43 is also connected to the glue pump 42. The lifting pipe 44 is slidably connected in the limit frame 45. A rack 46 is fixed on one side of the lifting pipe 44. A third motor 47 is fixed on the upper end of the limit frame 45. The output end of the third motor 47 is powered to the second gear 48, and the second gear 48 meshes with the rack 46.

[0034] The spiral pipe 43 is a spiral elastic pipe, designed to allow the spiral pipe 43 to deliver or draw materials into the lifting pipe 44 during both the rising and falling processes. The glue pump 42 is a high-viscosity pump that operates in both forward and reverse directions. It is designed to fill and draw the phase change material in the insulation tube 51 by using the forward and reverse operation of the glue pump 42. The upper end of the limit frame 45 is provided with a lock hole-shaped through groove, and the rack 46 and the lifting tube 44 are slidably connected in the through groove. The purpose is to use the rack 46 to limit the range of motion of the lifting tube 44 and prevent the lifting tube 44 from rotating arbitrarily and affecting the lifting operation. Limiting plates are provided on both sides of the lower end of the lifting tube 44 (e.g. Figure 12 As shown), the purpose is to use the limiting plate to limit the range of motion of the lifting tube 44 and prevent the rack 46 from disengaging from the limiting frame 45 and affecting the operation of the device; When the lifting pipe 44 is fully lowered, its upper end cannot contact the inner wall of the tower body 10, thus preventing the lifting pipe 44 from affecting the movement and operation of the arc platform 22 and the moving platform 13.

[0035] To ensure the normal transport of the phase change material inside the storage tank 41, an electric heating element needs to be installed inside the storage tank 41 to ensure that the phase change material is in a liquid state during transport. At the same time, to ensure that the phase change material inside the insulation tube 51 can be replaced, the phase change material discharge operation should be carried out during the time of the highest temperature of the day to ensure that the phase change material has absorbed enough heat and is in a liquid state, so that it can be transported by the glue pump 42.

[0036] The lower part of the insulation tube 51 is connected to a liquid pipe 56. The lower end of the liquid pipe 56 is provided with a sealing plug 52. A lifting needle 53 is fixed inside the sealing plug 52. The upper part of the lifting needle 53 is slidably connected to the center of the cross-shaped limiting plate. A spring 54 is sleeved on the lifting needle 53. The two ends of the spring 54 are respectively connected to the sealing plug 52 and the cross-shaped limiting plate. An alloy plate 55 is fixed to the upper end of the lifting tube 44. The middle part of the alloy plate 55 is provided with an abutment part. The center of the abutment part corresponds to the position of the lifting needle 53.

[0037] The contact part is a circular plate, and the diameter of the circular plate is larger than the diameter of the lifting pin 53.

[0038] The upper end of the lifting pin 53 is provided with a convex ring with a diameter larger than that of the lifting pin 53, which is intended to limit the range of motion of the lifting pin 53. The sealing plug 52 is a rubber plug that is narrow at the bottom and wide at the top. It is designed so that the outlet of the insulation tube 51 can only be opened when the sealing plug 52 rises, so as to avoid leakage of the phase change material inside the insulation tube 51 and affect its use. A cross-shaped hollow frame is provided at the outlet of the insulation tube 51. The hollow frame is designed to limit the range of motion of the lifting needle 53 and the sealing plug 52, so as to prevent the sealing plug 52 from detaching from the connection with the insulation tube 51 and affecting the sealing effect of the insulation tube 51.

[0039] To ensure the stability of the connection between the alloy plate 55 and the inlet / outlet of the insulation pipe 51, compatible magnetic suction components can be installed at the upper end of the alloy plate 55 and the lower end of the inlet / outlet of the insulation pipe 51 to improve the stability of positioning. The upper end of the alloy plate 55 is rounded to facilitate the insertion of the alloy plate 55 into the inlet / outlet of the insulation pipe 51.

[0040] The insulation tube 51 is used to isolate the temperature of the steel strand 11. The lifting tube 44 opens the sealing plug 52 by lifting and lowering, and fills or removes the phase change material in the insulation tube 51.

[0041] During the phase change material filling process, the rising lifting pipe 44 drives the alloy plate 55 to insert into the inlet and outlet of the insulation pipe 51. As the alloy plate 55 extends, it pushes the lifting needle 53 and the sealing plug 52 upward, thereby opening the outlet of the insulation pipe 51 and ensuring the normal operation of the phase change material filling. Under normal conditions, the spring 54 pushes the sealing plug 52 back to its original position, closing the outlet of the insulation pipe 51 and preventing phase change material leakage. This self-locking design not only ensures smooth filling operations but also effectively prevents unexpected leakage of phase change material, ensuring the long-term stable operation of the device.

[0042] It should be noted that the phase change material inside the insulation tube 51 is specifically a paraffin phase change material. The purpose is to make the phase change material liquid to absorb heat when the weather is hot during the day, and to convert it into a solid to release heat when the temperature drops sharply at night. This avoids excessive temperature changes that could cause the steel strand 11 to deform and affect the stability and safety of tensioning. The inner cavity of the tower body 10 is provided with a channel, which is designed to allow access to the lower end of the tower body 10 for convenient maintenance of the electrical components and equipment inside the device. An electric slip ring is provided at the lower end of the tower body 10, and the electric slip ring supplies power to the electrical components on the moving platform 13. The moving platform 13 has a built-in battery (not shown in the figure, and the electric slip ring and the battery are common technical structures in the prior art, which will not be described in detail). The battery is electrically connected to the electric slip ring. The upper end of the positioning block 37 and the lower end of the positioning sleeve 39 are both rounded to facilitate the insertion of the positioning block 37 into the positioning sleeve 39. Both the positioning block 37 and the inner cavity of the positioning sleeve 39 are hexagonal blocks, which is designed to allow the positioning block 37 to drive the positioning sleeve 39 to rotate and also slide within the positioning sleeve 39.

[0043] Preferably, in order to ensure the smooth loading and unloading of phase change material inside the insulation tube 51, a pressure valve needs to be connected to the upper end of the insulation tube 51. This is so that when the phase change material inside the insulation tube 51 is being loaded and unloaded, the pressure inside the insulation tube 51 can be adjusted by the pressure valve to avoid damage to the insulation tube 51 due to drastic pressure changes. The preferred ratio of phase change material in the insulation tube 51 is 80% to 85% paraffin wax + 20% to 15% graphite (EG). The porous structure of graphite adsorbs the liquid paraffin wax, preventing leakage, and improves thermal conductivity through the graphite layer. The aim is to enable the phase change material to convert into a liquid state to absorb heat at 40 degrees Celsius and to convert into a solid state to release heat at around 5 degrees Celsius at night. This avoids deformation of the steel strand 11 due to excessive temperature difference between day and night, which would reduce the service life of the steel strand 11 and cause loss of prestress.

[0044] The method of using the intelligent tensioning and curing device for external prestressed steel strands in mixed-type towers provided by the present invention includes the following steps: S1. Steel strand cutting: After the steel strand 11 is tensioned and before sealing and curing, start the motor 14 in the moving table 13, which drives the gear 15 to rotate. The gear 15 meshes with the gear ring 16, thereby driving the moving table 13 to move along the direction of the guide rail 12, thereby driving the moving component 20, cleaning component 30 and injection component 40 to move synchronously. Start the hydraulic drive mechanism 21 to push the arc table 22 to the bottom of the steel strand 11. Whenever the through hole 27 is aligned with the steel strand 11 above it, stop the motor and start the electric push rod mechanism 24 to push the lifting plate 25 up, so that the part of the steel strand 11 to be cut is placed in the through hole 27. Start the electric push rod mechanism 35 to make the positioning block 37 disengage from the positioning sleeve 39. Start the hydraulic drive mechanism 31 to push the sliding sleeve 32 to move towards the through hole 27. Start the motor 34 to make the cutter 36 rotate, thereby cutting the steel strand 11. S2. Steel strand cleaning: After the steel strand 11 is cut in sequence, the sliding sleeve 32 and the positioning block 37 are reset. At this time, the starting motor 34 drives the cleaning brush 38 to rotate through the positioning block 37 and the positioning sleeve 39. The cleaning brush 38 cleans the cut surface of the steel strand 11 to avoid too many impurities near the steel strand, which would affect the sealing and maintenance. S3. Sealing and curing: After the steel strand 11 is cleaned, a sealing isolation box is installed between the steel strand 11 and the outside of the anchor plate, and the inside is filled with a washable anti-corrosion liquid. S4. Filling with phase change material: After the steel strand 11 is sealed, molten phase change material is filled into the storage tank 41. When the lifting pipe 44 is below the liquid pipeline 56, the motor 3 47 is started, which drives the gear 2 48 to rotate, thereby driving the rack 46 and the lifting pipe 44 to move upward. The abutting part of the alloy plate 55 abuts against the lifting needle 53, thereby causing the lifting needle 53 to drive the sealing plug 52 to move upward. The upper end of the lifting pipe 44 enters the liquid pipeline 56. The glue pump 42 is started to squeeze the phase change material in the storage tank 41 into the liquid pipeline 56 and transfer it to fill the gap between the heat insulation pipe 51 and the steel strand 11, so as to avoid the steel strand 11 from deforming due to the large temperature difference between day and night.

[0045] In step S1, the waste material cut off by the cutter 36 falls into the waste box 26.

[0046] In this embodiment, if the phase change material in the insulation tube 51 needs to be replaced, it is necessary to ensure that the phase change material completely absorbs heat and turns into liquid when the temperature is highest throughout the day. Then, the lifting tube 44 is inserted into the insulation tube 51 again to extract and discharge the phase change material. Then, the phase change material discharged from the storage tank 41 is replaced, and the process of S4 is repeated to refill the insulation tube 51 with phase change material.

[0047] The working principle of this invention is as follows: After the steel strand 11 is tensioned, motor 14 drives gear 15 to rotate within the tooth groove of the gear ring 16, causing the moving platform 13 to move along the guide rail 12, adjusting the positions of the lifting plate 25 and the cutter 36 to bring them closer to the steel strand 11. Simultaneously, hydraulic rod 21 pushes the arc-shaped platform 22 to move and adjust its position, thereby adjusting the positions of the lifting plate 25 and the cutter 36. After adjustment, electric actuator 24 pushes the lifting plate 25 upward, so that the lifting plate 25 is fitted onto the outside of the steel strand 11. Subsequently, motor 34 drives the cutter 36 to run, and hydraulic rod 31 pushes the sliding sleeve 32 to slide, bringing the cutter 36 close to the steel strand 11 for cutting. After cutting is completed, the cutter 36 returns to its original position, and then electric actuator 35 pushes motor 34 upward until the positioning block 37 is inserted into the positioning sleeve 39. Subsequently, motor 2 34 starts again, driving positioning sleeve 39 and cleaning brush 38 to rotate synchronously via positioning block 37. Then, moving table 13 moves again, driving arc-shaped table 22 and cleaning brush 38 to move, thus cleaning steel strand 11. When it is necessary to fill the insulation tube 51 with phase change material, first fill the storage box 41 with molten phase change material, then adjust the position of arc-shaped table 22 so that the lifting tube 44 is located at the lower end of the inlet and outlet of the insulation tube 51. Then, motor 3 47 drives gear 2 48 to rotate, causing rack 46 to drive the lifting tube 44 to rise along the limit frame 45 until the upper end of the lifting tube 44 is inserted into the inlet and outlet of the insulation tube 51. As alloy plate 55 extends in, it pushes lifting needle 53 and sealing plug 52 to rise, thereby opening the outlet of insulation tube 51. At this time, the glue pump 42 starts, pumping the liquid phase change material in the storage tank 41 into the riser pipe 44 through the spiral pipe 43, and then into the heat insulation pipe 51 through the riser pipe 44, thus completing the filling of the phase change material.

[0048] This invention enables the positioning and automatic cutting of steel strands, reducing manual labor and avoiding significant harm to construction workers caused by harsh processing environments.

[0049] Based on the description and accompanying drawings of this invention, those skilled in the art can easily manufacture or use the intelligent tensioning and curing device for external prestressed steel strands of the mixed tower and its usage method, and can produce the positive effects described in this invention.

[0050] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "linked," and "sleeve" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral construction; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two mechanisms, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In the description of this invention, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

[0052] Furthermore, in practicing the claims of this invention, those skilled in the art can understand and influence variations to the disclosed embodiments through a study of the drawings, the disclosure, and the appended claims. Additionally, in the claims and description, words such as "comprising" and "containing" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes and modifications made in accordance with the present invention are covered by the scope of the claims of the present invention, and will not be listed here.

Claims

1. A prestressed steel strand intelligent tensioning and curing device for a mixed tower body, wherein a plurality of steel strands (11) are arranged in a ring inside the tower body (10), characterized in that, The lower part of the tower body (10) is provided with an integrated working platform. The integrated working platform is provided with a circular guide rail (12). A moving platform (13) is slidably connected to the guide rail (12). A moving component (20) is provided on one side of the moving platform (13). The moving component (20) includes an arc-shaped platform (22), a connector (23), and a lifting plate (25). One end of the connector (23) is fixed to the moving platform (13). The moving platform (13) drives the arc-shaped platform (22) to rotate through the connector (23). The lifting plate (25) is connected to the arc-shaped platform (22). 2) Above, the lifting plate (25) is provided with a through hole (27) through which the steel strand (11) can pass. The lifting plate (25) is also provided with a cleaning component (30). The cleaning component (30) includes a cutter (36) for cutting the steel strand (11) and a cleaning brush (38) for cleaning the cut surface. The arc-shaped platform (22) is also provided with a filling component (40). The outside of the steel strand (11) is provided with a heat insulation tube (51). The filling component (40) includes a lifting tube (44). The lifting tube (44) can fill or remove the phase change material in the heat insulation tube (51).

2. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-tower structure as described in claim 1, characterized in that, The lower tower body (17) of the tower body (10) is located inside the integrated operation platform. The guide rail (12) is arranged around the lower tower body (17). A toothed ring (16) is provided on the outer wall of the lower tower body (17). A motor (14) is provided inside the moving platform (13). The output shaft of the motor (14) is powered by a gear (15). The gear (15) meshes with the toothed ring (16).

3. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-tower structure as described in claim 1, characterized in that, The moving component (20) also includes a hydraulic drive mechanism (21) fixed to one side of the moving platform (13), and the hydraulic rod output end of the hydraulic drive mechanism (21) is fixedly connected to the arc-shaped platform (22).

4. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-type tower as described in claim 3, characterized in that, The connector (23) is a limiting track, and the arc-shaped platform (22) is fixed with a limiting slider (28) that cooperates with the limiting track.

5. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-type tower as described in claim 4, characterized in that, The side of the limiting slider (28) is fixed with a support plate. The moving component (20) also includes an electric actuator mechanism (24), which is fixed on the support plate. The electric actuator output end of the electric actuator mechanism (24) is fixedly connected to the lifting plate (25).

6. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-type tower as described in claim 1, characterized in that, A waste frame (26) is fixed below the lifting plate (25), and the opening of the waste frame (26) is aligned with the position of the through hole (27).

7. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-tower structure as described in claim 1, characterized in that, The cleaning assembly (30) also includes a second hydraulic drive mechanism (31), a sliding sleeve (32), a limiting rod (33), a second motor (34), a second electric actuator mechanism (35), a positioning block (37), a cleaning brush (38), and a positioning sleeve (39). The limiting rod (33) is fixed between the two side ribs below the lifting plate (25). The second hydraulic drive mechanism (31) is fixed to the side of one side rib below the lifting plate (25). The hydraulic rod output end of the second hydraulic drive mechanism (31) is fixed to the side of the sliding sleeve (32). The sliding sleeve (32) is located between the two limiting rods (33). The electric actuator mechanism 2 (35) is fixed to the bottom of the inner cavity of the sliding sleeve (32). The electric actuator output end of the electric actuator mechanism 2 (35) is fixed to the motor 2 (34) through the pressure plate. The output end of the motor 2 (34) is powered to the cutter (36). A positioning block (37) is fixed at the center of the top surface of the cutter (36). The cleaning brush (38) is fixed on the lifting plate (25). The cleaning brush (38) is located on one side of the through hole (27). The positioning sleeve (39) is fixed below the cleaning brush (38). The positioning block (37) can be fitted with the positioning sleeve (39).

8. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-tower structure as described in claim 1, characterized in that, The infusion assembly (40) is located on one side of the cleaning assembly (30). The infusion assembly (40) also includes a storage tank (41), a glue pump (42), a spiral pipe (43), a limiting frame (45), a rack (46), a motor (47), and a gear (48). The storage tank (41), the glue pump (42), and the limiting frame (45) are respectively fixed on the arc-shaped platform (22). The bottom of the storage tank (41) is connected to the spiral pipe (43), and the spiral pipe... The other end of the spiral pipe (43) is connected to the lifting pipe (44). The spiral pipe (43) is also connected to the glue pump (42). The lifting pipe (44) is slidably connected in the limiting frame (45). The rack (46) is fixed on one side of the lifting pipe (44). The motor three (47) is fixed on the upper end of the limiting frame (45). The output end of the motor three (47) is powered to the gear two (48). The gear two (48) meshes with the rack (46).

9. The intelligent tensioning and curing device for external prestressed steel strands in a mixed-tower structure as described in claim 8, characterized in that, The lower part of the insulation tube (51) is connected to a liquid pipe (56). The lower end of the liquid pipe (56) is provided with a sealing plug (52). A lifting needle (53) is fixed inside the sealing plug (52). The upper part of the lifting needle (53) is slidably connected to the center of the cross-shaped limiting plate. A spring (54) is sleeved on the lifting needle (53). The two ends of the spring (54) are respectively connected to the sealing plug (52) and the cross-shaped limiting plate. An alloy plate (55) is fixed at the upper end of the lifting tube (44). The middle part of the alloy plate (55) is provided with an abutment part. The center of the abutment part corresponds to the position of the lifting needle (53).

10. The method of using the intelligent tensioning and curing device for external prestressed steel strands in a mixed-structure tower, characterized in that, Includes the following steps: S1. Steel strand cutting: After the steel strand (11) is tensioned and before sealing and curing, start the motor (14) in the moving platform (13), which drives the gear (15) to rotate. The gear (15) meshes with the gear ring (16), thereby driving the moving platform (13) to move along the direction of the guide rail (12), thereby driving the moving component (20), cleaning component (30), and grouting component (40) to move synchronously. Start the hydraulic drive mechanism (21) to push the arc-shaped platform (22) to the bottom of the steel strand (11). When the through hole (27) is aligned with the steel strand (11) above it, stop motor one, start electric push rod mechanism one (24), push the lifting plate (25) to rise, so that the part of the steel strand (11) to be cut is placed in the through hole (27), start electric push rod mechanism two (35), so that the positioning block (37) is dislodged from the positioning sleeve (39) downwards, start hydraulic drive mechanism two (31), push the sliding sleeve (32) to move towards the through hole (27), start motor two (34) to make the cutter (36) rotate, thereby cutting the steel strand (11); S2. Steel strand cleaning: After the steel strand (11) is cut in sequence, the sliding sleeve (32) and the positioning block (37) are reset. At this time, the second motor (34) drives the cleaning brush (38) to rotate through the positioning block (37) and the positioning sleeve (39). The cleaning brush (38) cleans the cut surface of the steel strand (11). S3. Sealing and maintenance: After the steel strand (11) is cleaned, a sealing isolation box is installed between the steel strand (11) and the outside of the anchor plate, and a washable anti-corrosion liquid is filled inside. S4. Filling phase change material: After the steel strand (11) is sealed, molten phase change material is filled into the storage tank (41). When the lifting pipe (44) is below the liquid pipeline (56), the motor three (47) is started, thereby driving the gear two (48) to rotate, thereby driving the rack (46) and the lifting pipe (44) to move upward. The abutting part of the alloy plate (55) abuts against the lifting needle (53), thereby causing the lifting needle (53) to drive the sealing plug (52) to move upward. The upper end of the lifting pipe (44) enters the liquid pipeline (56). The glue pump (42) is started to squeeze the phase change material in the storage tank (41) into the liquid pipeline (56) and transfer it to fill the gap between the heat insulation pipe (51) and the steel strand (11) to avoid the steel strand (11) from deforming due to the large temperature difference between morning and evening.

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