Steel bar conveying structure and system for nuclear island containment construction

Abstract

The application discloses a reinforcing steel bar conveying structure and system for nuclear island containment construction, and relates to the technical field of nuclear island containment construction.The reinforcing steel bar conveying structure for nuclear island containment construction comprises a supporting assembly, a slide assembly and a feeding assembly.The supporting assembly is arranged on one side of the nuclear island containment.The slide assembly is installed on the supporting assembly and is arranged obliquely.The top of the slide assembly is provided with a chute.The feeding assembly has a feeding end and a feeding end at two ends.The feeding assembly is rotatably arranged at the top of the slide assembly.The feeding assembly is used for rotating upward or downward to adjust the included angle between the feeding end and the slide assembly, so that the reinforcing steel bar enters the chute of the slide assembly from the feeding end through the feeding end, and the reinforcing steel bar is conveyed to the reinforcing steel bar operation layer of the nuclear island containment.The application reduces the time for manually carrying the reinforcing steel bar and occupying the tower crane, improves the conveying efficiency of the long straight reinforcing steel bar in the nuclear island containment, and reduces the labor intensity and safety hazards of the workers.

Description

Technical Field

[0001] This invention relates to the field of nuclear island containment construction technology, and in particular to a steel reinforcement transfer structure and system for nuclear island containment construction. Background Technology

[0002] During the construction of the nuclear island containment structure, the transportation and transfer of reinforcing steel bars are key factors affecting construction efficiency.

[0003] Traditional construction methods primarily rely on on-site vertical transport equipment to hoist steel bars to the containment construction scaffolding platform, where workers then manually distribute and pass them. This traditional method has numerous drawbacks: First, the limited area of ​​the scaffolding platform results in insufficient steel bar storage capacity, necessitating frequent hoisting and replenishment operations, significantly reducing the usability of tower cranes and other vertical transport equipment. Second, the narrow scaffolding platform space not only restricts the movement of construction workers but also affects the efficiency of steel bar transfer. Third, for horizontal steel bars with larger diameters and longer lengths, manual transfer is time-consuming, labor-intensive, and poses safety hazards. Furthermore, the simultaneous handling of horizontal and upward transfer requirements further increases the construction difficulty. These problems severely restrict the overall progress and quality control of the nuclear island containment construction. Summary of the Invention

[0004] The main objective of this invention is to propose a steel reinforcement transfer structure and system for the construction of nuclear island containment, which aims to improve the steel reinforcement transfer efficiency, reduce tower crane occupation time, reduce manual labor intensity and safety hazards during the construction process of nuclear island containment.

[0005] To achieve the above objectives, the present invention proposes a steel reinforcement transfer structure for the construction of a nuclear island containment vessel, comprising: A support assembly is disposed on one side of the nuclear island containment along the circumference of the nuclear island containment. A slide rail assembly is installed on the side of the support assembly facing the nuclear island containment structure. The slide rail assembly is inclined from the top of the nuclear island containment structure toward the bottom of the nuclear island containment structure, and a slide groove is provided on the top of the slide rail assembly. The feeding assembly has a feeding end and a feeding end at its two ends along the extension direction of the slide assembly. The feeding end is connected to the slide groove of the slide assembly through the feeding end. The feeding assembly is rotatably disposed at the top of the slide assembly. The feeding assembly is used to rotate upward or downward to adjust the angle between the feeding end and the slide assembly, so that the reinforcing bar enters the slide groove of the slide assembly from the feeding end through the feeding end, so as to transfer the reinforcing bar to the reinforcing bar operating layer of the nuclear island containment.

[0006] In one embodiment, the feeding assembly includes a feeding cylinder, a support, and a rotating shaft. The support is spaced apart at the top of the slide assembly by external steel beams. The rotating shaft extends along the width direction of the slide assembly. The feeding cylinder is rotatably mounted on the support via the rotating shaft. The two ends of the feeding cylinder extending along the length direction of the slide assembly are the feeding end and the feeding end, respectively. The feeding cylinder is used to rotate upward or downward around the rotating shaft to adjust the angle between the feeding end and the slide assembly.

[0007] In one embodiment, the feeding cylinder includes a first hollow cylinder, a second hollow cylinder, and a hollow connecting cylinder. The first hollow cylinder, the second hollow cylinder, and the hollow connecting cylinder are coaxially arranged and extend along the length direction of the slide assembly. The first hollow cylinder and the second hollow cylinder are connected and communicate with each other through the hollow connecting cylinder. The first hollow cylinder forms the feeding end, and the second hollow cylinder forms the feeding end. The second hollow cylinder is disposed close to and facing the slide groove of the slide assembly. The hollow connecting cylinder is rotatably mounted on the support through the rotating shaft.

[0008] In one embodiment, the first hollow cylinder is surrounded by a first flared opening that gradually expands from the hollow connecting cylinder in a direction away from the rotating shaft, and the second hollow cylinder is surrounded by a second flared opening that gradually expands from the hollow connecting cylinder in a direction closer to the slide assembly. The first flared opening forms the feeding end, and the second flared opening forms the feeding end.

[0009] In one embodiment, the support includes a mounting plate and a support plate, the support plate being mounted on the mounting plate and extending along the length of the slide assembly, the mounting plate being connected to the steel beam, and the feeding cylinder being rotatably mounted on the support plate near one end of the slide assembly via the rotating shaft.

[0010] In one embodiment, the support plate is inclined upward from the mounting plate, the support plate is provided with a clearance space, the rotating shaft is installed in the clearance space, a portion of the feeding cylinder is disposed in the clearance space, and another portion of the feeding cylinder extends out of the clearance space and is spaced above the slide assembly.

[0011] In one embodiment, the end of the support plate near the slide assembly protrudes upward to form a mounting portion, and the rotating shaft is mounted on the mounting portion.

[0012] In one embodiment, the support assembly includes a plurality of uprights and a plurality of support frames. The number of uprights and support frames are the same and they are arranged in a one-to-one correspondence. The plurality of uprights are spaced apart along the outer edge of the nuclear island containment. The plurality of support frames are all connected to the slide assembly, and the support frames have a triangular structure.

[0013] In one embodiment, the outer edge of the nuclear island containment vessel has an arc-shaped structure, and the slide assembly includes a plurality of channel steels. The plurality of channel steels are spliced ​​along the outer edge of the nuclear island containment vessel to the side of the support assembly facing the nuclear island containment vessel. Each channel steel has an arc that matches the outer edge of the nuclear island containment vessel. The top of each channel steel is recessed downward to form a slide groove with a C-shaped structure. The channel steel at the bottom of the slide assembly is arranged in a horizontal direction.

[0014] This invention also proposes a rebar transfer system for nuclear island containment construction, comprising a building machine and a rebar transfer structure as described above. The building machine includes a steel platform and a rebar operating platform. The steel platform is spaced above the rebar operating platform and has a feeding port. A support assembly is disposed between the steel platform and the rebar operating platform. A slide assembly is inclined downwards from the feeding port toward the rebar operating platform. The feeding assembly is rotatably disposed on the steel platform corresponding to the position of the feeding port. The feeding port is connected to the feed end and is used to allow the rebar to enter the slide groove of the slide assembly from the feed end through the feed end, so as to transfer the rebar to the rebar operating platform.

[0015] The technical solution of this invention achieves continuous and automated transmission of reinforcing bars from the feeding port to the construction layer through the synergistic action of the support component, the slide component, and the feeding component. This significantly reduces manual labor intensity. The inclined layout of the slide component fully utilizes gravitational potential energy, reducing additional power consumption. The combined structure of the support component and the slide expands the load-bearing capacity of the material transfer channel, allowing the simultaneous transmission of multiple reinforcing bars and improving construction efficiency. It enables the efficient transmission of long straight reinforcing bars along the slide to the operating layer, reducing manual handling and tower crane occupation time, improving the transmission efficiency of long straight reinforcing bars in the nuclear island containment, and reducing the labor intensity and safety hazards of workers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of an embodiment of the steel reinforcement transfer structure for nuclear island containment construction provided by the present invention. Figure 2 This is a schematic diagram of a structure of an embodiment of the support component involved in the present invention; Figure 3 This is a schematic diagram of a structure of an embodiment of the slide rail assembly involved in the present invention; Figure 4 This is a schematic diagram of another embodiment of the slide assembly involved in the present invention; Figure 5 This is a schematic diagram of a structure of an embodiment of the feeding assembly involved in the present invention; Figure 6 This is a schematic diagram of a support frame according to an embodiment of the present invention; Figure 7 This is a structural schematic diagram of an embodiment of the steel reinforcement transfer system for nuclear island containment construction provided by the present invention.

[0018] Explanation of icon numbers: 10. Steel platform; 20. Rebar handling platform; 11. Feeding port; 12. Steel beam; 100, Support assembly; 200, Slide assembly; 300, Feeding assembly; 110, Upright; 120, Support frame; 210, Channel steel; 201, Slide; 301, Feeding end; 302, Feeding end; 310, Feeding cylinder; 320, Support; 330, Rotating shaft; 311, First hollow cylinder; 312, Second hollow cylinder; 313, Hollow connecting cylinder; 321, Mounting plate; 322, Support plate; 303, Clearance space; 323, Mounting part.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] In existing technologies, the transportation of reinforcing steel bars during the construction of the nuclear island containment vessel mainly relies on vertical hoisting equipment to deliver the steel bars to the scaffolding platform, where they are then manually distributed and passed. Due to the limited space on the scaffolding platform, the amount of steel bars stacked is insufficient, leading to frequent calls to tower cranes for replenishment, which severely impacts construction efficiency. Furthermore, the large diameter and long length of the horizontal reinforcing steel bars make manual transfer physically demanding and inefficient, and the confined construction space further limits the number of workers and operational flexibility.

[0024] Therefore, in order to solve this technical problem, the present invention proposes a steel reinforcement transfer structure and system for the construction of nuclear island containment.

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 In one embodiment of the present invention, the steel reinforcement transfer structure for the construction of the nuclear island containment includes a support assembly 100, a slide assembly 200, and a feeding assembly 300. The support assembly 100 is disposed circumferentially on one side of the nuclear island containment. The slide assembly 200 is installed on the side of the support assembly 100 facing the nuclear island containment, and the slide assembly 200 is inclined from the top of the nuclear island containment towards the bottom of the nuclear island containment. A groove 201 is provided on the top of the slide assembly 200. The feeding assembly 300 is disposed along the slide assembly 200. The two ends of the extension direction of 00 are the feeding end 301 and the feeding end 302, respectively. The feeding end 301 is connected to the slide groove 201 of the slide assembly 200 through the feeding end 302. The feeding assembly 300 is rotatably set at the top of the slide assembly 200. The feeding assembly 300 is used to rotate up or down to adjust the angle between the feeding end 302 and the slide assembly 200, so that the steel bars enter the slide groove 201 of the slide assembly 200 from the feeding end 302 through the feeding end 301, so as to transfer the steel bars to the steel bar operating layer of the nuclear island containment.

[0026] It should be noted that the support assembly 100 refers to the load-bearing structure installed along the outer edge of the nuclear island containment vessel. Specifically, it can be implemented by combining uprights 110 and triangular support frames 120, used to bear the loads of the slide assembly 200 and the rebar transfer process. The slide assembly 200 refers to an inclined guide channel, specifically formed by splicing multiple sections of channel steel 210. Its top groove 201 is used to accommodate the rebar and guide its sliding. The feeding assembly 300 refers to an adjustable-angle material transfer device, specifically implemented by a hollow cylinder and a rotating shaft 330. By rotating and adjusting the connection angle between the feeding end 302 and the slide, the rebar can be smoothly inserted into the groove 201.

[0027] More specifically, straight, long steel bars are fed into the feeding end 301 of the feeding assembly 300 and automatically slide down the inclined slide assembly 200 to the steel bar handling layer. The feeding assembly 300 adjusts the angle between the feeding end 302 and the slide by rotating to adapt to the material transfer angle requirements of different construction heights. The support assembly 100 provides stable support for the slide, preventing displacement or deformation during material transfer. The inclined design of the slide assembly 200 utilizes gravity to achieve automatic steel bar delivery, reducing manual handling.

[0028] Compared with existing technologies, this solution replaces manual handling with a mechanical material transfer channel, avoiding the efficiency loss caused by frequent lifting by tower cranes. The continuous inclined structure of the slide assembly 200 allows the steel bars to be directly transported to the operating level without secondary material distribution on the narrow hanging platform. The angle adjustment function of the feeding assembly 300 adapts to the material transfer needs of different construction stages, solving the limitations of the fixed material transfer path in traditional methods.

[0029] The technical solution provided by this invention achieves continuous and automated transmission of reinforcing bars from the feeding port 11 to the construction layer through the synergistic effect of the support component 100, the slide component 200, and the feeding component 300. This significantly reduces manual labor intensity. The inclined layout of the slide component 200 fully utilizes gravitational potential energy, reducing additional power consumption. The combined structure of the support component 100 and the slide expands the load-bearing capacity of the material transfer channel, allowing the simultaneous transmission of multiple reinforcing bars and improving construction efficiency. It enables the efficient transmission of long straight reinforcing bars along the slide to the operating layer, reducing manual handling and tower crane occupation time, improving the transmission efficiency of long straight reinforcing bars in the nuclear island containment, and reducing the labor intensity and safety hazards of workers.

[0030] Please continue reading. Figures 1 to 4 And see Figure 5In an embodiment of the present invention, the feeding assembly 300 includes a feeding cylinder 310, a support 320, and a rotating shaft 330. The support 320 is spaced apart at the top of the slide assembly 200 by external steel beams 12. The rotating shaft 330 extends along the width direction of the slide assembly 200. The feeding cylinder 310 is rotatably mounted on the support 320 via the rotating shaft 330. The two ends of the feeding cylinder 310 extending along the length direction of the slide assembly 200 are the feeding end 301 and the feeding end 302, respectively. The feeding cylinder 310 is used to rotate up or down around the rotating shaft 330 to adjust the included angle between the feeding end 302 and the slide assembly 200.

[0031] It should be noted that the feeding cylinder 310 refers to the hollow structure used to guide the reinforcing bars into the slide. Specifically, it can be implemented using segmented cylinder splicing, with the feeding angle adjusted by rotation to accommodate different operating levels. The support 320 is the supporting component that bears the rotational movement of the feeding cylinder 310. Specifically, it can be implemented using a triangular bracket formed by welding steel plates, and fixedly connected to the top of the slide by the steel beam 12 to enhance stability. The rotating shaft 330 is the connecting component that enables the rotational movement of the feeding cylinder 310. Specifically, it can be a cylindrical steel shaft that passes through the support 320 and is hinged to the feeding cylinder 310, achieving low-friction rotation through a bushing fit.

[0032] More specifically, the feeding cylinder 310 forms an adjustable-angle material transfer channel with the support 320 via the rotating shaft 330. The reinforcing bar enters from the feed end 301 and slides along the cylinder towards the feeding end 302. When the transfer path needs adjustment, the feeding cylinder 310 rotates around the rotating shaft 330, increasing or decreasing the angle between the feeding end 302 and the slide, thereby changing the initial speed and direction of the reinforcing bar entering the slide. The steel beam 12 fixing structure of the support 320 can distribute the load at the top of the slide, avoiding deformation caused by local stress concentration. The width-direction arrangement of the rotating shaft 330 ensures that the feeding cylinder 310 remains aligned with the axis of the slide during rotation, ensuring that the reinforcing bar accurately falls into the chute 201.

[0033] This embodiment enables rapid adjustment of the rebar conveying angle, reducing the number of manual handling operations and avoiding construction interruptions caused by frequent adjustments to the conveying path. The rigid connection structure between the feeding cylinder 310 and the support 320 enhances the stability of the material conveying process and prevents the rebar from slipping or shifting. At the same time, the low resistance characteristics of the rotating shaft 330 ensure smooth angle adjustment operations and improve overall material conveying efficiency.

[0034] Please continue reading. Figure 5In an embodiment of the present invention, the feeding cylinder 310 includes a first hollow cylinder 311, a second hollow cylinder 312, and a hollow connecting cylinder 313. The first hollow cylinder 311, the second hollow cylinder 312, and the hollow connecting cylinder 313 are coaxially arranged. The first hollow cylinder 311, the second hollow cylinder 312, and the hollow connecting cylinder 313 all extend along the length direction of the slide assembly 200. The first hollow cylinder 311 and the second hollow cylinder 312 are connected and communicate with each other through the hollow connecting cylinder 313. The first hollow cylinder 311 forms a feeding end 301, and the second hollow cylinder 312 forms a feeding end 302. The second hollow cylinder 312 is arranged close to and facing the slide groove 201 of the slide assembly 200. The hollow connecting cylinder 313 is rotatably mounted on the support 320 through a rotating shaft 330.

[0035] It should be noted that the first hollow cylinder 311 refers to a tubular structure for receiving reinforcing bars, which can be implemented using segmented welded steel pipes. Its axial extension direction is consistent with the length direction of the slide assembly 200, forming a material inlet channel. The second hollow cylinder 312 refers to a tubular structure for discharging reinforcing bars, which can be implemented using flared steel pipes with guide bevels. Its end maintains an adjustable distance from the slide 201, forming a material outlet channel. The hollow connecting cylinder 313 refers to a transition structure connecting the two hollow cylinder sections, which can be implemented using a flange and bolt assembly method. Its axis coincides with the rotating shaft 330, forming a rotation support node.

[0036] More specifically, after the reinforcing bar enters through the feed end 301 of the first hollow cylinder 311, it moves axially into the hollow connecting cylinder 313, then enters the second hollow cylinder 312 and slides into the chute 201 through the feeding end 302. By rotating the entire feeding cylinder 310 around the pivot 330, the inclination angle between the end of the second hollow cylinder 312 and the chute 201 can be changed. For example, when it is necessary to increase the sliding speed, the angle between the feeding end 302 and the chute 201 can be adjusted downwards; when it is necessary to reduce the sliding impact, the angle can be adjusted upwards. The coaxial arrangement of the three cylinders ensures that the reinforcing bar maintains a straight trajectory during transmission, avoiding jamming caused by turning.

[0037] This embodiment guides the rebar transport trajectory, effectively preventing the rebar from shifting or piling up during the fall. The split cylindrical structure reduces the processing difficulty of the overall device, and the modular design of the three components facilitates on-site assembly and maintenance. The rotation adjustment function adapts to the material transfer needs at different construction heights, reducing the intensity of manual handling and improving the safety and efficiency of rebar transfer operations.

[0038] Please continue reading. Figure 5In an embodiment of the present invention, a first hollow cylinder 311 is provided to form a first flared opening that gradually expands from the hollow connecting cylinder 313 toward the direction away from the rotating shaft 330, and a second hollow cylinder 312 is provided to form a second flared opening that gradually expands from the hollow connecting cylinder 313 toward the direction close to the slide assembly 200. The first flared opening forms a feeding end 301, and the second flared opening forms a feeding end 302.

[0039] It should be noted that the first flared opening refers to the flared structure where the inlet cross-sectional dimension of the feed end 301 is larger than that of the connecting cylinder. Specifically, it can be implemented using a tapered pipe section or an arc-shaped transition section, with a flaring angle ranging from 15° to 45°. This structure expands the inlet range of the rebar entering the channel, facilitating quick positioning and feeding by operators. The second flared opening refers to the flared structure where the outlet cross-sectional dimension of the feed end 302 is larger than that of the connecting cylinder. Specifically, it can be implemented using a fan-shaped opening matching the width of the chute 201, with a flaring angle ranging from 20° to 60°. This structure guides the rebar into the chute 201 in a dispersed manner, preventing rebar from accumulating at the chute inlet.

[0040] More specifically, when the feeding cylinder 310 is adjusted to its working angle around the rotating shaft 330, the reinforcing bar enters the internal channel of the feeding cylinder 310 through the first flared opening and is then transferred to the second flared opening via the hollow connecting cylinder 313. The gradually expanding structure of the second flared opening allows the reinforcing bar to naturally disperse under gravity and slide into the chute 201 at an inclined angle. The gradually expanding design of the first flared opening reduces the positioning accuracy requirements when the reinforcing bar enters; the operator only needs to align the end of the reinforcing bar with the flared opening to complete the feeding. The opening direction of the second flared opening forms an angle with the extension direction of the chute 201, allowing the reinforcing bar to maintain a continuous sliding state within the chute 201.

[0041] This embodiment reduces the reliance on manual positioning accuracy in the rebar feeding operation and minimizes pauses caused by the rebar ends colliding with the cylinder wall. The first flared opening expands the effective receiving area and shortens the preparation time for feeding a single rebar; the cooperation between the second flared opening and the chute 201 allows the rebar to automatically adjust its posture during sliding, avoiding mutual interference between multiple rebars at the chute entrance.

[0042] Please continue reading. Figure 5 In an embodiment of the present invention, the support 320 includes a mounting plate 321 and a support plate 322. The support plate 322 is mounted on the mounting plate 321 and extends along the length of the slide assembly 200. The mounting plate 321 is connected to the steel beam 12. The feeding cylinder 310 is rotatably mounted on the support plate 322 near the end of the slide assembly 200 via a rotating shaft 330.

[0043] It should be noted that the mounting plate 321 refers to a plate-like structure used to support the support plate 322 and connect to the external steel beam 12. Specifically, it can be rigidly connected to the steel beam 12 by welding or bolting, and its planar dimensions can be adapted to the installation requirements of the support plate 322. The support plate 322 refers to a supporting member arranged along the extension direction of the slide assembly 200. Specifically, it can be formed by cutting steel plates, and its length direction is parallel to the slide assembly 200, providing an installation position for the pivot 330. The pivot 330 installation point is set at one end of the support plate 322 near the slide assembly 200. The vertical height of this position from the top of the slide assembly 200 can be controlled within the range of 200 mm to 500 mm to ensure that the feeding cylinder 310 does not interfere with the slide assembly 200 when rotating.

[0044] Specifically, the mounting plate 321 is fixed to the steel beam 12 with fasteners to form a stable support base. The support plate 322 is vertically welded to the surface of the mounting plate 321 and extends along the length of the slide. A mounting hole for a rotating shaft 330 is machined at the end of the support plate 322, through which the rotating shaft 330 passes and connects to the feeding cylinder 310. When the feeding cylinder 310 rotates around the rotating shaft 330, the support plate 322 bears the bending moment generated by the weight of the feeding cylinder 310 and the load of the reinforcing steel. The mounting plate 321 transfers the load to the main structure through the steel beam 12. The length of the support plate 322 is parallel to the slide assembly 200 to ensure that the rotation trajectory of the feeding cylinder 310 is consistent with the inclination direction of the slide, thus avoiding skewing during the transmission of reinforcing steel.

[0045] This embodiment implements a modular design for the support 320, and the separate structure of the mounting plate 321 and the support plate 322 reduces processing difficulty and maintenance costs. The extension of the support plate 322 along the length of the slide effectively controls the position of the rotation axis of the feeding cylinder 310, ensuring that the rebar transmission trajectory matches the slide inclination angle and preventing jamming during rebar sliding. The connection method between the mounting plate 321 and the steel beam 12 enhances the overall structural stability, can withstand the dynamic loads generated during rebar transmission operations, and improves the reliability of equipment operation.

[0046] Please continue reading. Figure 5 In an embodiment of the present invention, the support plate 322 is inclined upward from the mounting plate 321, the support plate 322 is provided with a clearance space 303, the rotating shaft 330 is installed in the clearance space 303, a portion of the feeding cylinder 310 is disposed in the clearance space 303, and another portion of the feeding cylinder 310 extends out of the clearance space 303 and is spaced above the slide assembly 200.

[0047] It should be noted that the upward tilt of the support plate 322 from the mounting plate 321 means that the support plate 322 and the mounting plate 321 form an acute angle structure. This can be achieved by welding the support plate 322 and the mounting plate 321 together. This tilted structure enhances the stability of the support plate 322 when supporting the rotating feed cylinder 310. The clearance space 303 refers to the groove or notch area on the support plate 322. This can be achieved by cutting the support plate 322 to form a U-shaped opening. This space provides clearance for the rotation of the rotating shaft 330 and the feed cylinder 310. The rotating shaft 330 is installed in the clearance space 303, meaning that the rotating shaft 330 laterally penetrates the groove area of ​​the support plate 322. This can be achieved by using a bearing and bushing to fix the rotating shaft 330. This structure allows the feed cylinder 310 to rotate freely around the axis of the rotating shaft 330. The part of the feeding cylinder 310 is set in the clearance space 303, which means that the connecting part of the rotating shaft 330 of the feeding cylinder 310 is embedded in the groove of the support plate 322. Specifically, it can be achieved by assembling the hollow connecting cylinder 313 and the rotating shaft 330 coaxially. This layout effectively reduces the overall structural height.

[0048] More specifically, the mounting plate 321 is fixed to the top of the slide assembly 200 by the steel beam 12, and the support plate 322 is welded to the mounting plate 321 at an inclined angle to form a triangular support structure. A U-shaped notch is cut in the middle of the support plate 322 to form a clearance space 303, and the rotating shaft 330 passes through the two side walls of the notch of the support plate 322 laterally. The hollow connecting cylinder 313 of the feeding cylinder 310 is sleeved on the rotating shaft 330, with part of its cylinder embedded inside the notch of the support plate 322, while the second hollow cylinder 312 extends to the outside of the notch and is suspended above the slide assembly 200. When it is necessary to adjust the feeding angle, the operator can push the second hollow cylinder 312 to rotate around the rotating shaft 330, so that the second flared mouth and the slide groove 201 of the slide assembly 200 form different inclination angles, and the falling trajectory of the reinforcing bar can be adjusted according to the construction requirements when it slides into the slide groove 201 through the second flared mouth.

[0049] This embodiment effectively solves the problems of large space occupation and limited angle adjustment of the rebar conveying device during the construction of the nuclear island containment. The combined design of the inclined support plate 322 and the clearance space 303 enables the feeding cylinder 310 to achieve multi-angle adjustment without increasing the structural volume. The precise control of the rebar conveying trajectory reduces the number of manual interventions, and the inclined support structure enhances the stability of the device in high-altitude working environments.

[0050] Please continue reading. Figure 5 In an embodiment of the present invention, the end of the support plate 322 near the slide assembly 200 protrudes upward to form a mounting portion 323, and the rotating shaft 330 is mounted on the mounting portion 323.

[0051] It should be noted that the support plate 322 refers to an inclined plate-like structure installed on the mounting plate 321 and extending along the length of the slide assembly 200. It can be formed by cutting and welding steel plates, and its inclination angle can be adjusted according to the installation height of the slide assembly 200. It serves to provide a supporting foundation for the rotating shaft 330. The mounting part 323 refers to a protruding structure extending upwards from the end of the support plate 322. It can be formed by bending or welding steel plates. It serves to support the rotating shaft 330 and limit its axial displacement, ensuring the stability of the feeding cylinder 310 during rotation. The rotating shaft 330 refers to a cylindrical component extending along the width of the slide assembly 200. It can be made of high-strength alloy steel, with both ends embedded in the mounting part 323 and rotating through bearings. It connects to the feeding cylinder 310 and transmits rotational torque.

[0052] More specifically, the support plate 322 is inclined upward from the mounting plate 321, and its end is bent to form an upwardly protruding mounting part 323. A bearing seat is set inside the mounting part 323, and the rotating shaft 330 is fixed in the bearing seat by interference fit. The hollow connecting cylinder 313 of the feeding cylinder 310 is sleeved on the outer surface of the rotating shaft 330 and locked to the rotating shaft 330 by a flange. When it is necessary to adjust the angle between the feeding end 302 and the slide assembly 200, the operator can push the feeding cylinder 310 to rotate around the rotating shaft 330. At this time, the axial constraint of the mounting part 323 on the rotating shaft 330 can prevent the feeding cylinder 310 from shifting under the action of gravity. At the same time, the inclination angle of the support plate 322 makes the height of the clearance space 303 match the inclination slope of the slide assembly 200, ensuring that the steel bar slides into the slide groove 201 without obstruction.

[0053] This embodiment solves the problem of equipment damage caused by the weak structure of the rotating fulcrum in traditional material transfer devices, reduces the manual labor intensity of frequent angle adjustments, and optimizes the cooperation between the support plate 322 and the installation part 323 to make the transmission trajectory of the steel bars in the chute 201 more stable, reducing the risk of steel bar slippage caused by equipment vibration.

[0054] Please continue reading. Figures 1 to 4 In an embodiment of the present invention, the support assembly 100 includes a plurality of uprights 110 and a plurality of support frames 120. The number of uprights 110 and support frames 120 is the same and they are arranged in a one-to-one correspondence. The plurality of uprights 110 are spaced apart along the outer edge of the nuclear island containment. The plurality of support frames 120 are all connected to the slide assembly 200 and the support frames 120 have a triangular structure.

[0055] It should be noted that the upright 110 refers to a vertically installed rod-shaped support structure, which can be constructed using steel pipes or welded steel sections, and is used to distribute the load transmitted from the slide assembly 200 to the ground. The support frame 120 refers to the frame structure connected to the upright 110, which can be constructed using angle steel or channel steel 210 spliced ​​into a triangular truss, and is used to enhance the overall rigidity of the slide assembly 200. The triangular structure refers to a geometrically stable form composed of three sides, which can be implemented using a single-layer or double-layer truss form, and the geometric characteristics of the triangle improve the deformation resistance of the support assembly 100.

[0056] More specifically, uprights 110 are spaced apart along the outer edge of the nuclear island containment vessel to form basic support points. Each upright 110 corresponds to a support frame 120, which is fixed to the slide rail assembly 200 by bolts or welding. When the slide rail assembly 200 is subjected to dynamic loads generated by the sliding of the reinforcing bars, the triangular support frame 120 transfers the load to the uprights 110 through the force balance of its three sides, avoiding local stress concentration that could lead to structural instability. The triangular structure of the support frame 120 can adapt to the curved outer edge of the nuclear island containment vessel, and its fit with the curved surface of the slide rail assembly 200 can be achieved by adjusting the truss angle.

[0057] This embodiment solves the problem of slide deformation caused by insufficient load-bearing capacity of traditional support structures, reduces the safety risks caused by structural swaying during steel bar transmission, and reduces the floor space occupied by the support components by 100, reserving more spacious operating space for construction personnel and improving the efficiency of steel bar transmission.

[0058] Please continue reading. Figures 1 to 4 In an embodiment of the present invention, the outer edge of the nuclear island containment structure is arc-shaped. The slide assembly 200 includes a plurality of channel steels 210. The plurality of channel steels 210 are spliced ​​along the outer edge of the nuclear island containment structure to the side of the support assembly 100 facing the nuclear island containment structure. Each channel steel 210 has an arc adapted to the outer edge of the nuclear island containment structure. The top of each channel steel 210 is recessed downward to form a slide groove 201 with a C-shaped structure. The channel steel 210 at the bottom of the slide assembly 200 is arranged in a horizontal direction.

[0059] It should be noted that channel steel 210 refers to a long strip of steel with a U-shaped cross-section. Specifically, it can be made from standard hot-rolled channel steel 210 or cold-formed channel steel 210, and its groove structure forms a guide channel. The C-shaped structure refers to a semi-enclosed arc-shaped groove formed by the downward indentation at the top of the channel steel 210, which can be achieved through stamping or roll forming. This structure can limit the lateral displacement of the reinforcing bar during sliding. Curvature adaptation means that the bending radius of the channel steel 210 is consistent with the curvature of the outer edge of the nuclear island containment vessel. This can be achieved through customized molds or segmented bending processes, ensuring that the slide assembly 200 fits snugly against the containment vessel surface. Horizontal orientation means that the axis of the channel steel 210 at the bottom of the slide assembly 200 is parallel to the ground. This can be achieved by adjusting the installation angle of the support assembly 100 or adding a horizontal bracket, facilitating a smooth stop for the reinforcing bar after sliding.

[0060] More specifically, multiple channel steels 210 are sequentially spliced ​​along the arc-shaped outer edge of the nuclear island containment vessel to form a continuous slide. The curvature of each channel steel 210 matches the curvature of the corresponding position on the containment vessel, ensuring that the slide as a whole maintains a constant distance from the outer surface of the containment vessel. The C-shaped groove 201 at the top of the channel steel 210 is formed by machining, and its opening width is slightly larger than the diameter of the steel bar to reduce frictional resistance. The horizontal channel steel 210 at the bottom of the slide assembly 200 serves as a buffer section. After the steel bar slides to this section, it stops moving due to gravity, making it easier for operators to collect the materials.

[0061] In some specific embodiments, the channel steel 210 can be spliced ​​by welding or bolting, for example, using flanges with high-strength bolts for rapid installation. The inner surface of the C-shaped chute 201 can be covered with a layer of high-molecular wear-resistant material, such as ultra-high molecular weight polyethylene lining, to reduce wear when the reinforcing bars slide. A baffle can be installed at the end of the horizontal channel steel 210, such as a welded steel plate or a rubber buffer block, to prevent the reinforcing bars from sliding out of the chute.

[0062] This embodiment solves the problem of mismatched rebar transfer paths caused by the curved surface structure of the nuclear island containment, reducing the risk of jamming during rebar sliding. The slide formed by splicing arc-shaped channel steel 210 can adapt to changes in the outer diameter of the nuclear island containment at different construction stages, reducing the frequency of track adjustments. The horizontal channel steel 210 serves as a terminal buffer structure, improving the rebar positioning accuracy and shortening the material handling time for operators.

[0063] Please continue reading. Figures 1 to 6 And see Figure 7The present invention also proposes a rebar transfer system for nuclear island containment construction. The rebar transfer system for nuclear island containment construction includes a building machine and a rebar transfer structure as described above. The building machine includes a steel platform 10 and a rebar operating platform 20. The steel platform 10 is spaced above the rebar operating platform 20 and is provided with a feeding port 11. A support component 100 is provided between the steel platform 10 and the rebar operating platform 20. A slide component 200 is inclined downward from the feeding port 11 toward the rebar operating platform 20. A feeding component 300 is rotatably provided on the steel platform 10 corresponding to the position of the feeding port 11. The feeding port 11 is connected to the feeding end 301. The feeding port 11 is used to allow the rebar to enter the slide groove 201 of the slide component 200 from the feeding end 302 through the feeding end 301, so as to transfer the rebar to the rebar operating platform 20.

[0064] It should be understood that the specific structure of the steel reinforcement transfer structure used for the construction of the nuclear island containment refers to the above embodiments. Since the steel reinforcement transfer system used for the construction of the nuclear island containment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0065] It should be noted that the "building machine" refers to modular construction equipment used for the construction of the nuclear island containment structure. Specifically, it can be implemented using a multi-layered frame structure including a steel platform 10 and a rebar operating platform 20. The steel platform 10 is used to support the rebar and has a feeding port 11, while the rebar operating platform 20 is used to receive the rebar transported by the slide rail and perform tying operations. The steel platform 10 refers to the steel structure bearing surface located above the rebar operating platform 20, and can be implemented using a truss or welded steel plate structure, providing temporary storage space for the rebar and providing the feeding port 11. The rebar operating platform 20 refers to the construction operation layer located below the steel platform 10, and can be implemented using scaffolding or a prefabricated platform structure, providing a platform for construction workers to stand and perform rebar tying operations. The support component 100 refers to the load-bearing structure connecting the steel platform 10 and the rebar operating platform 20, and can be implemented using a combination of uprights 110 and a triangular support frame 120, used to fix the slide rail component 200 and distribute the load. The slide assembly 200 refers to an inclined rebar transmission channel, which can be implemented by splicing multiple sections of curved channel steel 210. Its top is recessed to form a C-shaped chute 201 to guide the rebar sliding. The feeding assembly 300 refers to an adjustable-angle rebar guiding device, which can be implemented by a hollow cylindrical structure connected by a rotating shaft 330. The docking angle between the feeding end 302 and the chute 201 can be adjusted by rotating around the rotating shaft 330.

[0066] More specifically, after the reinforcing bars are fed into the feed end 301 through the feed port 11 of the steel platform 10, they slide along the hollow cylinder of the feeding assembly 300 into the C-shaped chute 201 of the slide assembly 200, and automatically slide down to the reinforcing bar operating platform 20 using the gravity of the inclined slide. The feeding assembly 300 adjusts the angle between the feeding end 302 and the chute 201 by rotating the shaft 330, so that reinforcing bars of different lengths or diameters can smoothly enter the slide. The triangular support frame 120 of the support assembly 100 cooperates with the upright 110 to ensure that the slide assembly 200 remains stable during the transmission process. The slide assembly 200 is made of multiple sections of curved channel steel 210 spliced ​​together to match the curved outer edge of the nuclear island containment vessel, with the bottom channel steel 210 set horizontally to receive the sliding reinforcing bars.

[0067] This embodiment realizes continuous automated transmission of reinforcing bars from steel platform 10 to operating platform, significantly reducing the time tower crane equipment occupancy; the inclined arrangement of slide assembly 200 and the angle adjustment function of feeding assembly 300 work together to improve the efficiency of reinforcing bar transmission; the triangular structure of support assembly 100 enhances the stability of slide and ensures the safety of long-distance transmission; the arc-shaped slide formed by splicing channel steel 210 matches the outer edge of the nuclear island containment vessel, optimizing space utilization and reducing construction interference.

[0068] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A steel reinforcement transfer structure for the construction of a nuclear island containment vessel, characterized in that, include: A support assembly is disposed on one side of the nuclear island containment along the circumference of the nuclear island containment. A slide rail assembly is installed on the side of the support assembly facing the nuclear island containment structure. The slide rail assembly is inclined from the top of the nuclear island containment structure toward the bottom of the nuclear island containment structure, and a slide groove is provided on the top of the slide rail assembly. A feeding assembly has a feed end and a feeding end at its two ends along the extension direction of the slide assembly. The feed end is connected to the slide groove of the slide assembly via the feeding end. The feeding assembly is rotatably mounted on the top of the slide assembly. The feeding assembly is used to rotate upwards or downwards to adjust the angle between the feeding end and the slide assembly, so that the reinforcing steel enters the slide groove of the slide assembly from the feeding end via the feed end, thereby transferring the reinforcing steel to the reinforcing steel operating layer of the nuclear island containment. The feeding assembly includes a feeding cylinder, a support, and a rotating shaft. The support is spaced apart at the top of the slide assembly by external steel beams. The rotating shaft extends along the width direction of the slide assembly. The feeding cylinder is rotatably mounted on the support via the rotating shaft. The two ends of the feeding cylinder extending along the length direction of the slide assembly are the feed end and the feeding end, respectively. The feeding cylinder is used to rotate upwards or downwards around the rotating shaft to adjust the angle between the feeding end and the slide assembly. The feeding cylinder includes a first hollow cylinder, a second hollow cylinder, and a hollow connecting cylinder. The first hollow cylinder, the second hollow cylinder, and the hollow connecting cylinder are coaxially arranged and extend along the length direction of the slide assembly. The first hollow cylinder and the second hollow cylinder are connected and communicate with each other through the hollow connecting cylinder. The first hollow cylinder forms the feeding end, and the second hollow cylinder forms the feeding end. The second hollow cylinder is positioned close to and facing the slide groove of the slide assembly. The hollow connecting cylinder is rotatably mounted on the support through the rotating shaft. The first hollow cylinder forms a first flared opening that gradually expands from the hollow connecting cylinder in the direction away from the rotating shaft, and the second hollow cylinder forms a second flared opening that gradually expands from the hollow connecting cylinder in the direction close to the slide assembly. The first flared opening forms the feeding end, and the second flared opening forms the feeding end.

2. The steel reinforcement transfer structure for nuclear island containment construction as described in claim 1, characterized in that, The support includes a mounting plate and a support plate, the support plate is mounted on the mounting plate and extends along the length of the slide assembly, the mounting plate is connected to the steel beam, and the feeding cylinder is rotatably mounted on the support plate near the end of the slide assembly via the rotating shaft.

3. The steel reinforcement transfer structure for nuclear island containment construction as described in claim 2, characterized in that, The support plate is inclined upward from the mounting plate, and the support plate is provided with a clearance space. The rotating shaft is installed in the clearance space, a portion of the feeding cylinder is disposed in the clearance space, and the other portion of the feeding cylinder extends out of the clearance space and is spaced above the slide assembly.

4. The steel reinforcement transfer structure for nuclear island containment construction as described in claim 3, characterized in that, The support plate protrudes upward at one end near the slide assembly to form a mounting portion, and the rotating shaft is mounted on the mounting portion.

5. The steel reinforcement transfer structure for the construction of the nuclear island containment vessel as described in any one of claims 1 to 4, characterized in that, The support assembly includes multiple uprights and multiple support frames. The number of uprights and support frames are the same and they are arranged in a one-to-one correspondence. The multiple uprights are spaced apart along the outer edge of the nuclear island containment. The multiple support frames are all connected to the slide assembly, and the support frames have a triangular structure.

6. The steel reinforcement transfer structure for the construction of the nuclear island containment vessel as described in any one of claims 1 to 4, wherein the outer edge of the nuclear island containment vessel has an arc-shaped structure, characterized in that, The slide rail assembly includes multiple channel steels, which are spliced ​​along the outer edge of the nuclear island containment to the side of the support assembly facing the nuclear island containment. Each channel steel has an arc that matches the outer edge of the nuclear island containment. The top of each channel steel is recessed downward to form a C-shaped slide rail. The bottommost channel steel of the slide rail assembly is arranged in a horizontal direction.

7. A rebar transfer system for construction of a nuclear island containment vessel, characterized in that, The invention includes a building machine and a rebar transfer structure for construction of a nuclear island containment vessel as described in any one of claims 1 to 6. The building machine includes a steel platform and a rebar operating platform. The steel platform is spaced above the rebar operating platform and has a feeding port. A support assembly is disposed between the steel platform and the rebar operating platform. A slide assembly is inclined downwards from the feeding port toward the rebar operating platform. The feeding assembly is rotatably disposed on the steel platform corresponding to the position of the feeding port. The feeding port is connected to the feed end and is used to allow the rebar to enter the slide groove of the slide assembly from the feed end through the feed end, so as to transfer the rebar to the rebar operating platform.

Images