A reinforcing bar lifting device, a nuclear power engineering wall construction equipment and a construction method

Abstract

The application discloses a reinforcing steel bar lifting device for lifting horizontal reinforcing steel bars of a construction wall body, which comprises a mounting frame, a bottom frame, a driving part and multiple groups of lifting units, the mounting frame is arranged at the top of a current construction section of the construction wall body, the bottom frame is arranged at the bottom of the current construction section, the lifting units are arranged between the mounting frame and the bottom frame, hooks are arranged on the lifting units and used for supporting the horizontal reinforcing steel bars, the multiple groups of lifting units are evenly arranged along the direction of the construction wall body, the hooks are used for supporting the horizontal reinforcing steel bars from multiple positions on the horizontal reinforcing steel bars, and the horizontal reinforcing steel bars are lifted to a set position of the current construction section under the driving of the driving part. The reinforcing steel bar lifting device can realize automatic lifting and positioning of the reinforcing steel bars, can be used as a supporting part for binding operation, and improves construction efficiency. The application further provides a nuclear power engineering wall body construction device and a construction method.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building construction equipment, and particularly relates to a reinforcing steel bar lifting device, a nuclear power engineering wall construction equipment and a construction method. BACKGROUND

[0002] The nuclear power engineering has very high safety level, and the building structure component size is generally large, the wall thickness is thick, the general thickness is 600mm-1000mm, and the thickness of a small amount of wall is even up to 1800mm. The reinforcing steel bars in the wall are many in layers, and the outer layer reinforcing steel bars of the outer wall are usually double-layered and double-directional. The reinforcing steel bar diameter is much larger than that of civil buildings, and the commonly used reinforcing steel bar diameter is 25mm-40mm, the reinforcing steel bar distribution interval is 200mm, and the reinforcing steel bars are densely arranged.

[0003] The positioning and binding of the wall horizontal reinforcing steel bars usually completely depend on manual carrying, and the workers stand or sit on the triangular hanging steps or scaffolds as the binding operation platform to perform the binding, which is large in labor consumption and inconvenient in operation, and the triangular hanging steps hung on the single side reinforcing steel mesh also has safety hazards. During the civil construction stage of the nuclear power engineering, the resources input for the positioning and binding of the wall horizontal reinforcing steel bars accounts for a very large proportion, which leads to low construction efficiency. SUMMARY

[0004] The present application aims to solve the above problems in the prior art, and provides a reinforcing steel bar lifting device, which can automatically lift the reinforcing steel bar into position and can also serve as a binding operation supporting component to improve the construction efficiency, and further provides a nuclear power engineering wall construction equipment and a construction method.

[0005] The reinforcing steel bar lifting device provided by the present application is used for lifting the horizontal reinforcing steel bars of a construction wall, and comprises a mounting frame, a base frame, a driving member and a plurality of lifting units. The mounting frame is arranged at the top of a current construction section of the construction wall, the base frame is arranged at the bottom of the current construction section, the lifting units are arranged between the mounting frame and the base frame, the lifting units are provided with hooks for supporting the horizontal reinforcing steel bars, the lifting units are evenly arranged along the direction of the construction wall, the hooks of the lifting units support the horizontal reinforcing steel bars at multiple positions on the horizontal reinforcing steel bars, and the driving member drives the lifting units to lift the horizontal reinforcing steel bars to a set position of the current construction section.

[0006] Preferably, the lifting unit comprises a driving shaft, a driven shaft and a lifting chain. The driving shaft is rotatably connected to the mounting frame, the driven shaft is rotatably connected to the base frame, the driving shaft and the driven shaft are provided with sprockets, the lifting chain is in transmission cooperation with the sprockets on the driving shaft and the sprockets on the driven shaft, the lifting chain is provided with the hooks, and the output end of the driving member is connected to the driving shaft to drive the driving shaft to rotate and drive the lifting chain to lift the horizontal reinforcing steel bars to the set position of the current construction section through the hooks.

[0007] Preferably, the lifting chain comprises a plurality of chain links, each chain link being connected by a pin shaft hinge, the lifting hooks are provided in plurality, arranged at equal intervals along the lifting chain, one end of the lifting hook is connected to the pin shaft, and the other end is a suspended hook-shaped part for hooking and supporting the horizontal steel bars.

[0008] Preferably, the lifting unit further comprises a limiting shaft, the limiting shaft is located between the driving shaft and the driven shaft, and the three are parallel, the limiting shaft is fixedly connected to the driving shaft and the driven shaft through a connecting rod, and the limiting shaft is also provided with a sprocket, the lifting chain passes through the sprocket on the limiting shaft, and the lifting chain is matched with the sprocket on the limiting shaft to make the lifting side of the lifting chain located in a vertical plane parallel to the current construction section.

[0009] Preferably, the steel bar lifting device further comprises a steel bar feeding groove for accommodating the horizontal steel bars to be lifted, the steel bar feeding groove is arranged at the bottom of the current construction section and arranged in parallel with the running direction of the construction wall.

[0010] Preferably, a plurality of rollers are arranged in the steel bar feeding groove, and the rolling axes of the rollers are perpendicular to the arrangement direction of the steel bar feeding groove.

[0011] Preferably, the construction wall is a straight wall structure with a straight running direction, the mounting frame is connected to the top of the two scaffolds on both sides of the current construction section, and the bottom frame is connected to the bottom of the two scaffolds on both sides of the current construction section.

[0012] Preferably, the construction wall is a straight wall structure with a straight running direction, the mounting frame is connected to the top of the two scaffolds on both sides of the current construction section, and the bottom frame is connected to the bottom of the two scaffolds on both sides of the current construction section.

[0013] Preferably, the construction wall is an arc wall structure with an arc running direction, the mounting frames on both sides of the current construction section are separately arranged and respectively connected to the top of the two scaffolds on both sides of the current construction section; the bottom frame is connected to the bottom of the two scaffolds on both sides of the current construction section, and the mounting frame and the bottom frame at the vertical position correspond to a mounting unit, and a lifting unit is arranged between the mounting units.

[0014] Preferably, an adjustable support is arranged between the bottom frame and the scaffold for adjusting the height of the bottom frame.

[0015] The application further provides a nuclear power engineering wall construction equipment, comprising the reinforcing steel bar lifting device, and further comprising a scaffold, which is arranged at two sides of a current construction section of the wall.

[0016] The application further provides a nuclear power engineering wall construction method, which uses the nuclear power engineering wall construction equipment, and comprises the following steps.

[0017] Erecting the scaffold at two sides of a current construction section of the wall;

[0018] Connecting the mounting frame and the base frame on the scaffold;

[0019] Installing the lifting units between the mounting frame and the base frame, and arranging the lifting units along the direction of the wall;

[0020] Lifting the horizontal reinforcing steel bars to the set positions of the current construction section by the lifting units, and binding the horizontal reinforcing steel bars, so as to complete the construction of the current construction section;

[0021] Taking the next construction section as the current construction section, repeating the above steps until the construction of the whole wall is completed.

[0022] The reinforcing steel bar lifting device provided by the application lifts the horizontal reinforcing steel bars by arranging the lifting units between the top and the bottom of the current construction section. The lifting process of the lifting units is completely driven by the driving members, which saves a large amount of manpower compared with manual transportation. After being lifted to the set positions, the lifting units can be directly used as the supporting devices of the horizontal reinforcing steel bars, and do not need to be manually moved to the binding positions or manually assisted to keep stable, so that the binding is more convenient and fast, and the construction efficiency is greatly improved. In addition, since personnel do not need to use the externally-hung triangular steps for assistance, the safety of the construction process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of the arrangement position of the reinforcing steel bar lifting device in the embodiment 1 of the application;

[0024] Figure 2 is a schematic view of the structure of the lifting unit in the embodiment 1 of the application;

[0025] Figure 3 is a schematic view of the structure of the reinforcing steel bar lifting device in the embodiment 1 of the application;

[0026] Figure 4 and Figure 5 is a schematic view of the structure of the lifting chain in the embodiment 1 of the application;

[0027] Figure 6 is a schematic view of the connection of the driving members in the embodiment 1 of the application;

[0028] Figure 7 is the connection diagram of the mounting frame in the embodiment 1 of the present application;

[0029] Figure 8 is the connection diagram of the base frame and the driven shaft in the embodiment 1 of the present application;

[0030] Figure 9 is another connection diagram of the base frame and the driven shaft in the embodiment 1 of the present application;

[0031] Figure 10 is the structure diagram of the straight wall reinforcing bar feeding groove in the embodiment 1 of the present application;

[0032] Figure 11 is the structure diagram of the arc wall reinforcing bar feeding groove in the embodiment 1 of the present application;

[0033] Figure 12 is the arrangement position diagram of the reinforcing bar feeding groove in the embodiment 1 of the present application;

[0034] Figure 13 is the diagram of the reinforcing bar feeding groove arranged on the flat construction surface in the embodiment 1 of the present application;

[0035] Figure 14 is the diagram of the reinforcing bar feeding groove arranged on the triangular support top surface in the embodiment 1 of the present application;

[0036] Figure 15 is the diagram of the mounting frame for the straight wall in the embodiment 1 of the present application;

[0037] Figure 16 is the diagram of the base frame for the straight wall in the embodiment 1 of the present application;

[0038] Figure 17 is the diagram of the mounting frame for the arc wall in the embodiment 1 of the present application;

[0039] Figure 18 is the diagram of the base frame for the arc wall in the embodiment 1 of the present application;

[0040] Figure 19 is the structure diagram of the current construction section in the embodiment 1 of the present application.

[0041] In the figure: 1, construction wall; 11, current construction section; 12, scaffold; 2, mounting frame; 3, base frame; 31, adjustable support; 4, driving shaft; 5, driven shaft; 6, lifting chain; 61, hook; 7, driving member; 8, limiting shaft; 81, connecting rod; 9, reinforcing bar feeding groove; 91, roller. DETAILED DESCRIPTION

[0042] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the devices or elements referred to must be provided with a particular orientation, constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In the description of the present application, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connection", "arrangement", "installation", "fixation" and the like should be understood broadly, for example, can be fixedly connected or detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] Embodiment 1

[0047] As shown in Figures 1 to 3 , the reinforcing bar lifting device of the present embodiment is used to lift the horizontal reinforcing bars of the construction wall 1, and the horizontal reinforcing bars of the current construction section 11 of the construction wall 1 are all in place as shown in Figure 19 . The reinforcing bar lifting device comprises a mounting frame 2, a base frame 3, a driving member 7 and a plurality of lifting units, the mounting frame 2 is arranged at the top of the current construction section 11 of the construction wall 1, the base frame 3 is arranged at the bottom of the current construction section 11, the lifting units are installed between the mounting frame 2 and the base frame 3, the lifting units are provided with hooks 61 for holding the horizontal reinforcing bars, the plurality of lifting units are evenly arranged along the direction of the construction wall 1, for jointly holding the horizontal reinforcing bars from multiple positions on the horizontal reinforcing bars through the hooks 61, and lifting the horizontal reinforcing bars to the set position of the current construction section 11 under the driving of the driving member 7.

[0048] The embodiment lifts the horizontal steel bars by arranging the lifting units between the top and bottom of the current construction section 11. The lifting process of the lifting units is completely driven by the driving member 7, which saves a lot of manpower compared with manual transportation. After being lifted to the set position, the lifting units can directly serve as the holding equipment of the horizontal steel bars, without the need of manually moving the steel bars to the binding position, so that the binding is more convenient and fast, and the construction efficiency is greatly improved. In addition, the workers do not need to use the external triangular steps for assistance, so the safety is higher.

[0049] In the embodiment, a plurality of groups of lifting units are evenly arranged along the trend of the construction wall 1, wherein the trend refers to the horizontal direction perpendicular to the thickness direction of the wall, that is, the along-line direction of the wall. Since the range of the wall of the nuclear power project is large, the length of the horizontal steel bars is also long. In the past, the horizontal steel bars needed to be manually lifted at multiple points along the trend of the construction wall 1, which was very difficult. Since the lifting units of the embodiment are arranged in multiple groups along the trend, the automatic lifting can be simultaneously performed from multiple positions of the horizontal steel bars, thereby ensuring the stability of the horizontal steel bars. The arrangement spacing and the number of groups of the plurality of lifting devices can be appropriately selected according to the length of the wall.

[0050] In the embodiment, the lifting unit includes a driving shaft 4, a driven shaft 5 and a lifting chain 6. The driving shaft 4 is rotatably connected to the mounting frame 2, and the two ends of the driving shaft 4 are provided with bearings. The mounting frame 2 is provided with a bearing seat or a hoop ring, and the bearing cooperates with the bearing seat or the hoop ring to realize rotation. The driven shaft 5 is rotatably connected to the base frame 3, and the two ends of the driven shaft 5 are also provided with bearings. The base frame 3 is provided with a bearing seat, and the bearing cooperates with the bearing seat to realize rotation.

[0051] The driving shaft 4 and the driven shaft 5 are both provided with sprockets, and the lifting chain 6 cooperates with the sprockets on the driving shaft 4 and the driven shaft 5 to transmit power. The lifting chain 6 is provided with a lifting hook 61. The driving member 7 is arranged on the mounting frame 2, and the output end is connected to the driving shaft 4 to drive the driving shaft 4 to rotate and drive the lifting chain 6 to lift the horizontal steel bars to the set position of the current construction section 11 through the lifting hook 61.

[0052] In the embodiment, the driving member 7 can drive the driving shaft 4 to rotate through a belt or a gear, etc. The driving member 7 includes a motor and a speed reducer. The output shaft of the motor is connected to the input shaft of the speed reducer, and the output shaft of the speed reducer is connected to the driving shaft 4.

[0053] In the embodiment, the lifting chain 6 includes a plurality of chain links, and each chain link is connected by a pin shaft hinge. The lifting hook 61 is provided with a plurality of lifting hooks 61, which are arranged at equal intervals along the lifting chain 6. One end of the lifting hook 61 is connected to the pin shaft, and the other end is a suspended hook-shaped part for hooking and holding the horizontal steel bars. A plurality of lifting hooks 61 can lift a plurality of horizontal steel bars at a time, thereby further improving the construction efficiency.

[0054] In this embodiment, in order to realize the one-time positioning of multiple horizontal steel bars, the distance between adjacent hooks 61 on the lifting chain 6 is the same as the required distance of the steel bar distribution of the current construction section 11. That is, if the required distance of the steel bar distribution is 200 mm, the distance between adjacent hooks 61 is also 200 mm, as shown in Figure 4 and Figure 5 After lifting, each horizontal steel bar can reach the required setting position at the same time, realizing the vertical positioning of the horizontal steel bar and ensuring the accurate positioning of the horizontal steel bar along the elevation direction.

[0055] In this embodiment, the horizontal steel bar is a commonly used steel bar with a length of 9 m or 12 m, and the steel bar diameter has 25 mm, 28 mm, 32 mm, 36 mm, 40 mm, etc. In this embodiment, 10 horizontal steel bars with a length of 12 m and a diameter of 40 mm are positioned at a time, the standard load is m = 1.2 t, the safety factor is selected as k = 2.0, that is, the design load is 2.4 t, and the design lifting speed of the horizontal steel bar is 0.5 m / min, and the speed adjustment range is 20%.

[0056] In this embodiment, as shown in Figure 3 , the lifting unit also includes a limiting shaft 8, which is located between the driving shaft 4 and the driven shaft 5, and the three are parallel. The limiting shaft 8 is fixedly connected to the driving shaft 4 and the driven shaft 5 through the connecting rod 81. This setting structure increases the rigid connection between the driving shaft 4 and the driven shaft 5, and ensures that the relative position does not change.

[0057] Since the lifting chain 6 is a flexible device, there is a tendency for the chain to bend or move horizontally during lifting, that is, there is deflection. Therefore, in this embodiment, a sprocket is also provided on the limiting shaft 8, and the lifting chain 6 passes around the sprocket on the limiting shaft 8. By cooperating the lifting chain 6 with the sprocket on the limiting shaft 8, the chain is always in a plumb state, ensuring that the lifting side of the lifting chain 6 is located in a vertical plane parallel to the current construction section 11.

[0058] In this embodiment, the steel bar lifting device also includes a steel bar feeding groove 9 for accommodating the horizontal steel bar to be lifted. The steel bar feeding groove 9 is arranged at the bottom of the current construction section 11, as shown in Figure 12 , and the arrangement direction is parallel to the direction of the construction wall 1. As shown in Figure 10 , the steel bar feeding groove 9 for a straight wall, Figure 11 and the steel bar feeding groove 9 for an arc-shaped wall.

[0059] In this embodiment, the steel bar feeding groove 9 is placed on the chassis 3 and can be installed and fixed by bolts and other fasteners. The width of the steel bar feeding groove 9 is greater than the width of the lifting chain 6 and the hook 61, as shown in Figure 3When the hook 61 runs to the lowest point, it contacts the steel bar and continues to run upwards, and the contacted steel bar is hooked into the inner recess of the hook structure, so as to realize the hooking of the steel bar. In order to further ensure that the hook 61 can hook the steel bar, the lifting chain 6 can be run downwards to above the groove bottom, so as to ensure that the hook 61 moves to below the steel bar.

[0060] In the embodiment, as shown in Figure 8 and Figure 9 The driven shaft 5 is connected to the chassis 3 through the supporting legs, and the supporting leg bottom can also be arranged in the groove if the position coincides with the steel bar feeding groove 9. In order to avoid the interference of the supporting leg of the driven shaft 5 with the steel bar hooking process, the steel bar can be placed in the supporting leg on the side corresponding to the lifting action of the hook 61, so that the hook 61 runs to the side to hook the steel bar.

[0061] As shown in Figure 13 When the bottom of the current construction section 11 of the construction wall 1 is a flat construction ground such as a floor or a raft, the steel bar feeding groove 9 can be directly placed on the flat construction ground; as shown in Figure 14 When the bottom of the current construction section 11 of the construction wall 1 is a vertical wall, that is, there is no flat construction ground, a triangular support can be hung at the bottom of the current construction section 11, the top surface of the triangular support is used as a construction plane, the steel bar feeding groove 9 is placed on the construction plane, and a platform handrail can also be erected on the outside of the scaffold 12 to ensure the safety of the construction process.

[0062] In the embodiment, a plurality of rollers 91 are arranged in the steel bar feeding groove 9, and the rolling axes of the rollers 91 are perpendicular to the arrangement direction of the steel bar feeding groove 9. The steel bar will move in the groove, and the rollers 91 can convert the sliding friction caused by the movement into rolling friction, so that the friction is smaller and the surface of the steel bar is not damaged.

[0063] In the embodiment, the two sides of the current construction section 11 of the construction wall 1 are both provided with the scaffold 12, the arrangement direction of the scaffold 12 is parallel to the running direction of the construction wall 1, the mounting frame 2 is detachably connected to the top of the two scaffolds 12 on the two sides of the current construction section 11, and the chassis 3 is detachably connected to the bottom of the two scaffolds 12 on the two sides of the current construction section 11.

[0064] As shown in Figure 6 The driving member 7 is detachably connected to the mounting frame 2 through fasteners such as bolts, as shown in Figure 7 The mounting frame 2 of the lifting unit is detachably connected to the top of the scaffolds 12 on the two sides of the current construction section 11 through fasteners such as bolts, and the chassis 3 is detachably connected to the bottom of the scaffolds 12 on the two sides of the current construction section 11 through fasteners such as bolts. The entire device is very convenient to assemble and disassemble, so the connection position can be appropriately adjusted according to the thickness of the wall.

[0065] In this embodiment, the rebar lifting device can be used for both straight wall structures and curved wall structures. When the construction wall 1 is a straight wall structure with a straight orientation, such as... Figure 15 and Figure 16 As shown, the horizontal reinforcing bars are also straight rods, so the mounting frame 2 can directly cross the current construction section 11 and connect to the top of the scaffolding 12 on both sides. The base frame 3 passes through the current construction section 11 and connects to the bottom of the scaffolding 12 on both sides. The mounting frame 2 and the base frame 3 corresponding to the vertical position are taken as a set of installation units. Since the construction wall 1 is straight, multiple lifting units are set between adjacent sets of installation units, and the multiple lifting units between adjacent sets of installation units are driven by the same drive component 7.

[0066] In two adjacent sets of installation units, a drive shaft 4 is installed between the two mounting frames 2, and a driven shaft 5 is installed between the two base frames 3. Multiple sprockets can be installed on both the drive shaft 4 and the driven shaft 5, and the drive unit 7 can drive multiple lifting chains 6 to lift simultaneously through this drive shaft 4.

[0067] When the construction wall 1 is an arc-shaped wall structure with an arc-shaped orientation, such as Figure 17 and Figure 18 As shown, the horizontal reinforcing bars are also arc-shaped rods. The installation frames 2 on both sides of the current construction section 11 are set separately and are each connected to the top of the two scaffolds 12 on both sides of the current construction section 11. The base frame 3 passes through the current construction section 11 and is connected to the bottom of the scaffolds 12 on both sides. The installation frames 2 and the base frame 3 in the vertical position are a set of installation units. A set of lifting units is installed between the set of installation units and driven by a drive component 7.

[0068] Because the construction wall 1 has an arc, the lifting unit cannot achieve synchronous driving of the sprockets at different center angles by a single drive shaft 4, and therefore cannot use single-shaft lifting. Therefore, each drive shaft 4 is relatively short, and one drive component 7 drives one drive shaft 4, and one drive shaft 4 drives one lifting chain 6.

[0069] Since the mounting frame 2 is located on one side of the curved construction wall 1, it is only subjected to the pressure of the horizontal steel bars on the lifting side of the lifting chain 6. In order to ensure the self-balance of the device, the mounting frame 2 is equipped with counterweights. The weight and position of the counterweights are determined so that the equivalent center of gravity of the mounting frame 2 is located in the middle of the scaffold 12.

[0070] In this embodiment, the vertical steel bar spacing of the current construction section 11 of the construction wall 1 is 200mm, and the steel bar diameter is 40mm. In order to allow the base frame 3 to pass through and be dismantled, the width of the base frame 3 is 150mm.

[0071] In this embodiment, as Figure 16 and Figure 18As shown, adjustable supports 31 are provided between the base frame 3 and the scaffolds 12 for adjusting the height of the base frame 3. Generally, the concrete pouring surface is not completely flat, so that the base frame 3 is set to be adjustable relative to the scaffolds 12, which can make it more adaptable to uneven foundations and ensure the stability of the equipment. In this embodiment, the adjustable supports 31 are screw threads, i.e. the screw rod cooperates with the nut, and the horizontal degree of the base frame 3 is adjusted to meet the requirements by appropriately adjusting the position of the nut. This adjustment structure is a common structure in construction, and will not be described here.

[0072] Embodiment 2

[0073] The nuclear power engineering wall construction equipment of this embodiment includes the reinforcing steel bar lifting device in Embodiment 1, and further includes scaffolds 12 arranged on both sides of the current construction section 11 of the construction wall 1, and the reinforcing steel bar lifting device is installed on the scaffolds 12, and the horizontal reinforcing steel bars are lifted to the set position through the chain transmission, which facilitates the workers to bind.

[0074] After the binding of all the horizontal reinforcing steel bars of the current construction section 11 of the construction wall 1 is completed, the lifting units are removed, the scaffolds 12 are retained, and the reinforcing bars and embedded parts are installed.

[0075] Embodiment 3

[0076] This embodiment discloses a nuclear power engineering wall construction method, which adopts the nuclear power engineering wall construction equipment in Embodiment 2, and the method comprises the following steps:

[0077] The scaffolds 12 are erected on both sides of the current construction section 11 of the construction wall 1; as Figure 15 shown, the thickness of the construction wall 1, i.e. the specific wall thickness of the actual project, is h, the outer edge of the outer scaffold 12 is arranged at a distance m from the outer wall of the construction wall 1, and the outer edge of the inner scaffold 12 is arranged at a distance n from the outer wall of the construction wall 1; the values of m and n are set according to the specific construction condition.

[0078] The mounting frames 2 and the base frame 3 are connected and installed on the scaffolds 12; the spacing between the adjacent two mounting frames 2 is greater than 13 m, so as to ensure that the horizontal reinforcing steel bars can be vertically lifted and transported;

[0079] The lifting units are installed between the mounting frames 2 and the base frame 3. As Figure 15 and Figure 16 shown, the distance between the drive shaft 4 on the outer side of the construction wall 1 and the outer wall of the construction wall 1 is a, and the distance between the drive shaft 4 on the inner side of the construction wall 1 and the inner wall of the construction wall 1 is b; the adjustable supports 31 of the base frame 3 are symmetrically arranged on both sides of the construction wall 1, and the distance between the adjustable supports 31 and the two side edges of the construction wall 1 is t. A plurality of lifting units are uniformly arranged along the running direction of the construction wall 1; wherein, the values of a, b and t are selected and adjusted according to the actual construction condition, and an empirical value can also be given according to the specific condition.

[0080] The horizontal steel bars are lifted to the set positions of the current construction section 11 by the lifting units, and are bound; the lifting units synchronously lift the positions of the horizontal steel bars at a lifting speed of 0.5±20% m / min, thereby completing the construction of the current construction section 11;

[0081] The next construction section is taken as the current construction section 11, and the above steps are repeated until the construction of the entire construction wall 1 is completed.

[0082] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present application, and the present application is not limited thereto. Various modifications and improvements can be made by those of ordinary skill in the art without departing from the spirit and essence of the present application, and these modifications and improvements are also considered to be within the protection scope of the present application.

Claims

1. A rebar lifting device for lifting horizontal rebars in a construction wall (1), characterized in that: The system includes a mounting frame (2), a base frame (3), a drive unit (7), and multiple lifting units. The mounting frame (2) is located at the top of the current construction section (11) of the construction wall (1), and the base frame (3) is located at the bottom of the current construction section (11). The lifting unit is installed between the mounting frame (2) and the base frame (3). The lifting unit is equipped with a hook (61) for supporting the horizontal reinforcing bar. Multiple lifting units are evenly arranged along the direction of the construction wall (1) to support the horizontal steel bars from multiple positions on the horizontal steel bars through hooks (61), and lift the horizontal steel bars to the set position of the current construction section (11) under the drive of the driving unit (7). The lifting unit includes a drive shaft (4), a driven shaft (5), and a lifting chain (6). The drive shaft (4) is rotatably connected to the mounting frame (2), and the driven shaft (5) is rotatably connected to the base frame (3). Both the drive shaft (4) and the driven shaft (5) are equipped with sprockets. The lifting chain (6) is driven by the sprockets on the drive shaft (4) and the driven shaft (5). The lifting chain (6) is equipped with the hook (61). The output end of the drive unit (7) is connected to the drive shaft (4) to drive the drive shaft (4) to rotate so that the lifting chain (6) can lift the horizontal steel bar to the set position of the current construction section (11) through the hook (61). The lifting unit also includes a limiting shaft (8), which is located between the drive shaft (4) and the driven shaft (5), and the three are parallel. The limiting shaft (8) is fixedly connected to the drive shaft (4) and the driven shaft (5) by a connecting rod (81). A sprocket is also provided on the limiting shaft (8). The lifting chain (6) passes around the sprocket on the limiting shaft (8). Through the cooperation between the lifting chain and the sprocket on the limiting shaft (8), the lifting side of the lifting chain (6) is located in a vertical plane parallel to the current construction section (11).

2. The rebar lifting device according to claim 1, characterized in that: The lifting chain (6) includes multiple chain links, which are connected by hinge pins. The hooks (61) are provided in multiples and are arranged at equal intervals along the lifting chain (6). One end of the hook (61) is connected to the pin shaft, and the other end is a suspended hook-shaped part, which is used to hook and support the horizontal steel bars.

3. The rebar lifting device according to claim 1, characterized in that: It also includes a steel bar loading trough (9) for accommodating horizontal steel bars to be lifted. The steel bar loading trough (9) is located at the bottom of the current construction section (11) and its arrangement direction is parallel to the direction of the construction wall (1).

4. The rebar lifting device according to claim 3, characterized in that: The steel bar feeding trough (9) is provided with multiple rollers (91), and the rolling axis of the rollers (91) is perpendicular to the arrangement direction of the steel bar feeding trough (9).

5. The rebar lifting device according to any one of claims 1 to 4, characterized in that: Scaffolding (12) is provided on both sides of the current construction section (11) of the construction wall (1), and the arrangement direction of the scaffolding (12) is parallel to the direction of the construction wall (1). The mounting frame (2) is detachably connected to the top of the two scaffolds (12) on both sides of the current construction section (11), and the base frame (3) is detachably connected to the bottom of the two scaffolds (12) on both sides of the current construction section (11).

6. The rebar lifting device according to claim 5, characterized in that: The construction wall (1) is a straight wall structure with a straight orientation. The mounting frame (2) spans across the current construction section (11) and connects to the top of the scaffolding (12) on both sides, and the base frame (3) passes through the current construction section (11) and connects to the bottom of the scaffolding (12) on both sides. The mounting frame (2) and the base frame (3) corresponding to the vertical position are a set of mounting units. Multiple lifting units are provided between two adjacent sets of mounting units, and the multiple lifting units between two adjacent sets of mounting units are driven by the same driving component (7).

7. The rebar lifting device according to claim 5, characterized in that: The construction wall (1) is an arc-shaped wall structure with an arc orientation. The installation frames (2) on both sides of the current construction section (11) are set up separately and are each connected to the top of the two scaffolding (12) on both sides of the current construction section (11); the base frame (3) passes through the current construction section (11) and is connected to the bottom of the scaffolding (12) on both sides. The mounting bracket (2) and the base frame (3) corresponding to the vertical position are a set of mounting units. A set of lifting units are installed between the set of mounting units and driven by a drive unit (7).

8. The rebar lifting device according to claim 5, characterized in that: An adjustable support (31) is provided between the base frame (3) and the scaffolding (12) to adjust the height of the base frame (3).

9. A construction equipment for nuclear power plant engineering walls, characterized in that: The steel bar lifting device according to any one of claims 1 to 8 further includes scaffolding (12), which is arranged on both sides of the current construction section (11) of the construction wall (1), and the steel bar lifting device is installed on the scaffolding (12).

10. A method for constructing walls in nuclear power plant engineering, characterized in that, The method using the nuclear power plant engineering wall construction equipment according to claim 9 includes the following steps: Scaffolding (12) is erected on both sides of the current construction section (11) of the construction wall (1). Connect the mounting frame (2) and the base frame (3) on the scaffold (12); The lifting unit is installed between the mounting frame (2) and the base frame (3), and multiple lifting units are evenly arranged along the direction of the construction wall (1); The lifting unit lifts each horizontal steel bar to a set position in the current construction section (11) and binds them, thereby completing the construction of the current construction section (11). The next construction section is taken as the current construction section (11), and the above steps are repeated until the construction of the entire construction wall (1) is completed.

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