Steel structure net rack sphere positioning installation device and construction method

Abstract

The application relates to the technical field of steel structure net rack construction, and provides a steel structure net rack spherical body positioning and mounting device and a construction method, which comprises a moving device, a hoisting device and a positioning device arranged on the moving device; the hoisting device is used for transferring a net rack spherical body to the positioning device; the moving device is used for moving the positioning device below a target installation coordinate point of the net rack spherical body; the positioning device comprises a magnetic suction base, a horizontal adjusting piece and a height adjusting piece; the magnetic suction base is used for magnetically fixing the net rack spherical body transferred to the magnetic suction base by the hoisting device; the horizontal adjusting piece is used for adjusting the levelness of the magnetic suction base; and the height adjusting piece is used for adjusting the net rack spherical body on the magnetic suction base to be at a design height. The application improves the installation efficiency of the net rack spherical body and the steel structure net rack. The problems of traditional net rack spherical body space positioning difficulty, low positioning accuracy, long-time occupation of hoisting equipment and the like are effectively solved.

Description

Technical Field

[0001] This invention belongs to the field of steel structure space frame construction technology, specifically relating to a sphere positioning and installation device and construction method for steel structure space frames. Background Technology

[0002] With social development, more and more large-scale public buildings such as theaters, concert halls, convention centers, and stadiums are emerging. These buildings are generally large-span spatial grid structures, often employing steel space frame structures. A spatial grid structure is a spatial structure composed of multiple members connected at nodes according to a certain regular geometric pattern. It can fully utilize the advantages of three-dimensional space, and the force transmission path is simpler, making it particularly suitable for large-span buildings. A structure composed of double or multiple layers of flat grids is called a space frame structure (or simply space frame), while a structure composed of single or double layers of curved grids is called a grid shell. A steel space frame includes connecting members and spheres connected to the connecting members; the connecting members include upper chords, lower chords, and diagonal web members. Spheres are placed at each connection node of the upper chord, lower chord, and diagonal web members. However, the rapid and accurate positioning of the spheres is a major challenge in the construction of steel space frames. Conventional construction methods involve using large lifting equipment such as tower cranes or truck cranes to install the space frame spheres. From hoisting to aerial positioning and adjustment, and welding, each space frame sphere requires a single lifting device. Furthermore, there is a lack of reliable and precise positioning methods, resulting in extremely low construction efficiency, extremely long construction periods, and a lack of guaranteed construction quality. Summary of the Invention

[0003] To address the problems of existing technologies, this application proposes a steel structure space frame sphere positioning and installation device and construction method, which can effectively solve problems such as difficulty in positioning space frame spheres, low accuracy, and long-term occupation of lifting equipment.

[0004] In a first aspect, the present invention proposes a positioning and installation device for a steel structure space frame sphere, comprising: a moving device and a lifting device and a positioning device disposed on the moving device; the lifting device includes a slide rail and a lifting device cooperating with the slide rail; the lifting device is used to transfer the space frame sphere from the storage yard to the positioning device; the moving device is used to move and adjust the positions of the lifting device and the positioning device, so that the positioning device is located below the target installation coordinate point of the space frame sphere; the positioning device includes a magnetic base, a horizontal adjustment component, and a height adjustment component; the magnetic base is disposed below the slide rail and is used to magnetically fix the space frame sphere transferred there by the lifting device; the horizontal adjustment component is disposed at the lower end of the magnetic base and is used to adjust the horizontality of the magnetic base; the height adjustment component connects the horizontal adjustment component and the moving device, and by adjusting the height of the horizontal adjustment component, the space frame sphere on the magnetic base is adjusted to the design height.

[0005] Furthermore, the magnetic base includes a base plate, a vertical support plate, an arc-shaped support plate, and a magnetic suction device; the base plate is connected to the horizontal adjustment component, the arc-shaped support plate is disposed above the base plate, and the upper end surface of the arc-shaped support plate is a concave arc surface for supporting the tennis ball; the vertical support plate is supported between the base plate and the arc-shaped support plate, and the magnetic suction device is disposed at the lower end of the arc-shaped support plate for magnetically attracting the tennis rack supported by the upper end of the arc-shaped support plate.

[0006] Furthermore, the leveling component includes a top level plate, a bottom level plate, a spirit level, and three leveling screws; the spirit level is disposed on the top level plate, the top level plate is connected to the magnetic base, the bottom level plate is connected to the height adjusting component, and the three leveling screws are connected between the top level plate and the bottom level plate.

[0007] Furthermore, the height adjustment component includes an upright telescopic rod; the positioning device also includes a connecting base plate disposed at the lower end of the telescopic rod; the connecting base plate is connected to the moving device, and the upper end of the telescopic rod is connected to the horizontal adjustment component.

[0008] Furthermore, the telescopic rod is a hollow structure with an internal channel. A through hole is provided on the connecting base plate, which communicates with the channel of the telescopic rod, and the central axis of the through hole points perpendicularly to the ground. An inclined observation mirror is provided inside the channel of the telescopic rod. A positioning observation window communicating with the observation mirror is provided on the side wall of the telescopic rod. The incident light from the observation mirror passes through the center of the through hole of the connecting base plate, and the reflected light from the observation mirror passes through the positioning observation window.

[0009] Furthermore, the positioning device also includes a diagonal brace disposed around the telescopic rod, the lower end of the diagonal brace being connected to the moving device, and the upper end of the diagonal brace being connected to the telescopic rod.

[0010] Furthermore, the mobile device includes a mobile base and casters disposed at the lower end of the mobile base; the lifting device and the positioning device are mounted on the mobile base.

[0011] Furthermore, the lifting device also includes a support truss; the support truss is mounted on the movable base; the slide rail is mounted on the support truss; the lifting equipment includes a lifting device and a magnetic gripper; the lifting device slides in conjunction with the slide rail, and the magnetic gripper is suspended below the lifting device; the magnetic gripper is internally equipped with an electromagnet for generating magnetic attraction.

[0012] Furthermore, the slide rail has a slide track arranged along its length, and the upper end of the slide rail has a slot communicating with the slide track; a steel ball is arranged in the slide track; a T-shaped slip shoe is installed at the lower end of the lifting device, the slip shoe includes a horizontal part and a vertical part connected to each other; the horizontal part is located in the slide track and slides with the steel ball, and the vertical part passes through the slot and connects to the lifting device.

[0013] Secondly, the present invention proposes a method for constructing a steel structure space frame using the aforementioned steel structure space frame spherical positioning and installation device, comprising the following steps:

[0014] Using the lifting device of the steel structure grid ball positioning and installation device, the grid ball in the storage yard is transferred to the magnetic base of the positioning device;

[0015] The positioning device is moved to a position below the target installation coordinate point of the grid sphere using a mobile device;

[0016] The horizontal adjustment component of the positioning device is used to adjust the levelness of the magnetic base;

[0017] The height adjustment component of the positioning device is used to adjust the sphere on the magnetic base to the designed height.

[0018] The space frame sphere is fixedly installed on the connecting rod of the constructed steel structure space frame;

[0019] The lifting device is used to lift the connecting rods that are connected to the space frame sphere to one side of the space frame sphere, thereby completing the fixed installation of all connecting rods on the space frame sphere;

[0020] Use the aforementioned mobile device to move the lifting and positioning devices to the storage yard; repeat the above steps until the steel structure space frame is assembled.

[0021] The beneficial effects of this invention are as follows: By mounting the lifting device and positioning device on the moving device, it can be easily moved; the lifting device transfers the space frame spheres in the yard to the positioning device, and combined with the moving device, the space frame spheres can be quickly moved below the target installation coordinate point. Then, the horizontal adjustment component of the positioning device adjusts the level of the space frame spheres, and the height adjustment component adjusts the height of the space frame spheres to the design height, achieving rapid positioning of the space frame spheres. This eliminates the need for truck cranes, tower cranes, or other equipment, and allows for the simultaneous positioning and installation of multiple space frame spheres, improving the installation efficiency of space frame spheres and steel structure space frames. It effectively solves the problems of difficult spatial positioning, low positioning accuracy, and prolonged occupation of lifting equipment associated with traditional space frame spheres. It is suitable for installing space frame spheres on the ground or at low altitudes using an overall lifting process, and is particularly suitable for space frame spheres installed on ground-based jigs. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a steel structure space frame sphere positioning and installation device according to the present invention.

[0023] Figure 2 for Figure 1 A side view structural diagram.

[0024] Figure 3 for Figure 2 A schematic diagram of a slide rail and its mating slide shoe.

[0025] In the picture,

[0026] 1-Moving device; 11-Moving handrail; 12-Moving push rod; 13-Moving base; 14-Wheel casters;

[0027] 2-Lifting device; 21-Supporting truss; 22-Slide rail; 23-Lifter; 24-Magnetic gripper; 25-Slipper; 26-Steel ball;

[0028] 3-Positioning device; 31-Magnetic base; 32-Horizontal adjustment component; 33-Height adjustment component; 34-Diagonal brace component; 35-Connecting base plate. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1-3 The steel structure space frame sphere positioning and installation device shown includes: a moving device 1, a lifting device 2 and a positioning device 3 installed on the moving device 1.

[0031] The moving device 1 is used to move and adjust the position of the lifting device 2 and the positioning device 3 so that the positioning device 3, which supports the grid sphere, is located below the target installation coordinate point of the grid sphere.

[0032] The mobile device 1 includes a movable handrail 11, movable push rods 12, a movable base 13, and casters 14. Four casters 14 are located at the lower end of the movable base 13, two movable push rods 12 are located on one side of the movable base 13, and the movable handrail 11 is located at the ends of the two movable push rods 12. The movable handrail 11 propels the movable base 13 to move on the ground. A lifting device 2 and a positioning device 3 are mounted on the movable base 13. In some embodiments, the mobile device 1 further includes wheels located at the lower end of the movable base 13 and a motor that drives the wheels to rotate. Under the action of the motor, the wheels are driven to rotate, thereby moving the mobile device 1 without manual pushing.

[0033] The lifting device 2 includes a support truss 21, a slide rail 22, and lifting equipment. The lifting equipment is used to transfer the grid spheres of the storage yard onto the positioning device 3. The lifting equipment includes a lifter 23 and a magnetic gripper 24. The slide rail 22 is mounted on the support truss 21, and the support truss 21 is mounted on the movable base 13. The lifter 23 slides in conjunction with the slide rail 22, and the magnetic gripper 24 is suspended below the lifter 23. The magnetic gripper 24 is internally equipped with an electromagnet for generating magnetic attraction.

[0034] In this embodiment, there are two slide rails 22, arranged parallel and spaced apart. The lifting device 23 is located at the upper end of the two slide rails 22. Figure 3 As shown, each slide rail 22 has a slide track arranged along its length inside, and the upper end of the slide rail 22 has a slot communicating with the slide track; steel balls 26 are arranged inside the slide track, and the steel balls 26 are distributed at the bottom and sides of the slide track; a T-shaped slip shoe 25 is installed at the lower end of the lifting device 23, and the slip shoe 25 includes a horizontal part and a vertical part connected to each other; the horizontal part is located inside the slide track and slides with the steel balls 26, and the vertical part passes through the slot and connects to the lifting device 23.

[0035] The lifting device 23 can slide on the slide rail 22 by manual pushing. In some embodiments, the lifting device 23 is provided with a drive wheel, which is in close contact with the side wall of the slide rail 22. A drive motor is connected to the drive wheel, and the drive motor drives the drive wheel to rotate on the slide rail 22, thereby enabling the lifting device 23 to move along the slide rail 22.

[0036] In some embodiments, one end of the slide rail 22 of the lifting device 2 is cantilevered to the outside of the supporting truss 21 so that the lifting equipment can move to the cantilevered end of the slide rail 22 to lift the connecting members of the grid sphere or steel structure grid of the storage yard, wherein the connecting members include upper chord, lower chord and diagonal web members.

[0037] The positioning device 3 includes a magnetic base 31, a horizontal adjustment component 32, a height adjustment component 33, a diagonal brace component 34, and a connecting base plate 35.

[0038] The magnetic base 31 is located below the slide rail 22 and is used to magnetically fix the sphere of the grid structure transferred to it by the lifting equipment; the horizontal adjustment component 32 is located at the lower end of the magnetic base 31 and is used to adjust the horizontality of the magnetic base 31; the height adjustment component 33 connects the horizontal adjustment component 32 and the moving device 1, and by adjusting the height of the horizontal adjustment component 32, the sphere of the grid structure on the magnetic base 31 is adjusted to the designed height.

[0039] The magnetic base 31 includes a base plate, a vertical support plate, an arc-shaped support plate, and a magnetic attraction device. The leveling adjustment component 32 includes a top level plate, a bottom level plate, a spirit level, and three leveling screws. The height adjustment component 33 includes a vertically mounted telescopic rod.

[0040] The base plate is connected to the horizontal top plate of the horizontal adjustment component 32. An arc-shaped support plate is positioned above the base plate, with its upper surface being a concave arc to support the tennis ball. Multiple vertical support plates are distributed circumferentially, supporting the tennis ball between the base plate and the arc-shaped support plate. A magnetic attraction device is located at the lower end of the arc-shaped support plate, used to magnetically attract the tennis ball supported by the upper end of the arc-shaped support plate. The magnetic attraction device can be an electromagnet.

[0041] The leveling element 32 has a bubble level mounted on the top plate, and the bottom plate is connected to the upper end of the telescopic rod of the height adjusting element 33. Three leveling screws are connected between the top and bottom plates. The three leveling screws are arranged in a triangle between the top and bottom plates. In this embodiment, both the top and bottom plates are round steel plates. The bubble level can be located at the center of the top plate or on its side wall, and multiple bubble levels are spaced apart along the circumference of the top plate. The top plate can be leveled by using the three leveling screws in conjunction with the bubble level.

[0042] A connecting base plate 35 is located at the lower end of the telescopic rod; the connecting base plate 35 is connected to the movable base 13 of the moving device 1, and the upper end of the telescopic rod is connected to a horizontal adjusting member 32. The telescopic rod includes multiple nested telescopic steel pipes of different diameters. A groove is provided at the upper end of the telescopic rod, and a fixing pin is provided at the center of the lower end face of the horizontal base plate of the horizontal adjusting member 32. The fixing pin is embedded in the groove of the telescopic rod, and bolts are provided on the side of the groove to fix the fixing pin.

[0043] The height of the telescopic pole can be adjusted manually or electrically. When electric adjustment is used, the telescopic pole uses a vertically installed electric push rod.

[0044] The diagonal brace 34 is arranged around the telescopic rod. The lower end of the diagonal brace 34 is connected to the movable base 13 of the moving device 1, and the upper end of the diagonal brace 34 is connected to the lowest layer of the steel pipe of the telescopic rod.

[0045] The telescopic rod is a hollow structure with an internal channel. A through hole is provided on the connecting base plate 35, which communicates with the channel of the telescopic rod, and the central axis of the through hole points vertically to the ground. An inclined observation mirror is provided in the channel of the telescopic rod. A positioning observation window communicating with the observation mirror is provided on the side wall of the telescopic rod. The incident light from the observation mirror passes through the center of the through hole of the connecting base plate 35, and the reflected light from the observation mirror passes through the positioning observation window.

[0046] The mobile base 13 of the mobile device 1 adopts a steel frame structure, that is, the bottom of the mobile device 1 is a hollow structure. The connecting base plate 35 is fixed to the mobile base 13 of the mobile device 1. The fixing method can be welding or bolt connection. The lower end of the through hole of the connecting base plate 35 avoids the mobile base 13, so that the through hole can directly point to the ground below the mobile base 13.

[0047] During construction, a marker is set on the ground at the target installation coordinate point of the tennis ball. The positioning device 3 is moved to the vicinity of the marker using the moving device 1, and its position is further adjusted so that the construction personnel can observe the marker through the observation window and the center of the through hole connecting the base plate 35. At this point, the extension line of the central axis of the telescopic rod passes through the marker on the ground, and the tennis ball is directly below the target installation coordinate point. Only the height of the tennis rack needs to be adjusted to reach the designed height to position the tennis ball at the target installation coordinate point. In this embodiment, the target installation coordinate point is not the ground marker, but a point in space at a certain height above the ground marker, which can be shown on the construction drawings.

[0048] Based on the same inventive concept, this invention also proposes a method for constructing a steel structure space frame using the aforementioned steel structure space frame spherical positioning and installation device, comprising the following steps:

[0049] Step 1: Using the lifting device 2 of the steel structure space frame sphere positioning and installation device, transfer the space frame spheres from the storage yard to the magnetic base 31 of the positioning device 3. The storage yard contains the space frame spheres to be installed, as well as the connecting rods of the steel structure space frame. A transport channel is provided between the storage yard and the ground marking points to facilitate the movement of the moving device 1. The ground marking points are marked in advance according to the construction drawings and requirements of the steel structure space frame.

[0050] Step 2: Use the moving device 1 to move the positioning device 3 below the target installation coordinate point of the space frame sphere. By pushing the moving device 1, adjust the position of the positioning device 3 so that the construction personnel can observe the ground mark point through the observation window and the observation mirror. The mark point is located at the center of the through hole connecting the base plate 35. At this time, the extension line of the central axis of the telescopic rod passes through the ground mark point, and the space frame sphere is directly below or directly above the target installation coordinate point.

[0051] Step 3: Adjust the level of the magnetic base 31 using the leveling adjustment component 32 of the positioning device 3. Level the top plate by using the three leveling screws in conjunction with the bubble level.

[0052] Step 4: Use the height adjustment component 33 of the positioning device 3 to adjust the sphere of the grid frame on the magnetic base 31 to the designed height. Adjust the height of the horizontal adjustment component 32 by adjusting the extension length of the telescopic rod, thereby adjusting the height of the sphere of the grid frame on the magnetic base 31.

[0053] Step 5: Securely install the space frame sphere onto the connecting members of the constructed steel space frame. The fixing method can be welding or bolting. The connecting members include the top chord, bottom chord, and diagonal web members. The constructed steel space frame includes a section of space frame truss. The length of the space frame truss is less than the length of the steel space frame. The space frame truss includes several truss units connected sequentially along its length. Each truss unit includes a top chord, bottom chord, diagonal web members, and a space frame sphere. Before this step, the truss unit containing positioning device 3 has completed the assembly of its top chord, bottom chord, and diagonal web members, but the assembly of the space frame sphere for that truss unit has not yet been completed. Therefore, in this step, positioning device 3 is used to support the space frame sphere, connecting the space frame sphere of the truss unit to one or more of the top chord, bottom chord, or diagonal web members to complete the assembly of the truss unit.

[0054] Step 6: Use lifting device 2 to lift the connecting rods used to connect with the space frame sphere to one side of the space frame sphere, completing the fixed installation of all connecting rods on the space frame sphere. Since one truss unit has been assembled in Step 5, use lifting device 2 to lift the connecting rods of the next truss unit to one side of the space frame sphere of the truss unit installed in Step 5, and connect and fix the connecting rods on lifting device 2 to the already fixed space frame sphere.

[0055] Step 7: Use the mobile device to move the lifting device and positioning device to the storage yard; return to step 1, grab the new space frame sphere, and assemble the new space frame sphere onto its corresponding truss unit until all truss units of the steel structure space frame are fully assembled, thereby completing the installation of the steel structure space frame.

[0056] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A spherical positioning and installation device for a steel structure space frame, characterized in that, include: A mobile device, and a lifting device and a positioning device mounted on the mobile device; The lifting device includes a slide rail and lifting equipment that cooperates with the slide rail; The lifting equipment is used to transfer the grid spheres of the stockyard onto the positioning device; The moving device is used to move and adjust the positions of the lifting device and the positioning device, so that the positioning device is located below the target installation coordinate point of the grid sphere; The positioning device includes a magnetic base, a horizontal adjustment component, and a height adjustment component. The magnetic base is located below the slide rail and is used to magnetically fix the sphere of the grid structure transferred there by the lifting equipment. The horizontal adjustment component is located at the lower end of the magnetic base and is used to adjust the levelness of the magnetic base. The height adjustment component connects the horizontal adjustment component and the moving device. By adjusting the height of the horizontal adjustment component, the sphere of the grid structure on the magnetic base is adjusted to the designed height. The magnetic base includes a base plate, a vertical support plate, an arc-shaped support plate, and a magnetic attraction device. The base plate is connected to the horizontal adjustment component. The arc-shaped support plate is positioned above the base plate, and its upper surface is a concave arc surface used to support the sphere of the net frame. The vertical support plate is supported between the base plate and the arc-shaped support plate. The magnetic attraction device is positioned at the lower end of the arc-shaped support plate and is used to magnetically attract the sphere of the net frame supported by the upper end of the arc-shaped support plate. The leveling component includes a top level plate, a bottom level plate, a spirit level, and three leveling screws; the spirit level is disposed on the top level plate, the top level plate is connected to the magnetic base, the bottom level plate is connected to the height adjusting component, and the three leveling screws are connected between the top level plate and the bottom level plate. The height adjustment component includes a vertically mounted telescopic rod; the positioning device further includes a connecting base plate disposed at the lower end of the telescopic rod; the connecting base plate is connected to the moving device, and the upper end of the telescopic rod is connected to the horizontal adjustment component; The telescopic rod is a hollow structure with an internal channel. A through hole is provided on the connecting base plate, which communicates with the channel of the telescopic rod, and the central axis of the through hole points perpendicularly to the ground. An inclined observation mirror is provided inside the channel of the telescopic rod. A positioning observation window communicating with the observation mirror is provided on the side wall of the telescopic rod. The incident light from the observation mirror passes through the center of the through hole of the connecting base plate, and the reflected light from the observation mirror passes through the positioning observation window. The mobile device includes a mobile base and casters disposed at the lower end of the mobile base; the lifting device and the positioning device are mounted on the mobile base. The lifting device further includes a support truss; the support truss is mounted on the movable base; the slide rail is mounted on the support truss; the lifting equipment includes a lifting device and a magnetic gripper; the lifting device slides in conjunction with the slide rail, and the magnetic gripper is suspended below the lifting device; the magnetic gripper is internally equipped with an electromagnet for generating magnetic attraction. The slide rail has a slide track arranged along its length inside, and the upper end of the slide rail has a slot communicating with the slide track; steel balls are arranged in the slide track; a T-shaped slip shoe is installed at the lower end of the lifting device, and the slip shoe includes a horizontal part and a vertical part connected to each other; the horizontal part is located in the slide track and slides with the steel balls, and the vertical part passes through the slot and connects to the lifting device.

2. The steel structure space frame sphere positioning and installation device according to claim 1, characterized in that, The positioning device also includes a diagonal brace disposed around the telescopic rod, the lower end of the diagonal brace being connected to the moving device, and the upper end of the diagonal brace being connected to the telescopic rod.

3. A method for constructing a steel structure space frame using the spherical positioning and installation device for steel structure space frames as described in claim 1, characterized in that, Includes the following steps: Using the lifting device of the steel structure grid ball positioning and installation device, the grid ball in the storage yard is transferred to the magnetic base of the positioning device; The positioning device is moved to a position below the target installation coordinate point of the grid sphere using a mobile device; The horizontal adjustment component of the positioning device is used to adjust the levelness of the magnetic base; The height adjustment component of the positioning device is used to adjust the sphere on the magnetic base to the designed height. The space frame sphere is fixedly installed on the connecting rod of the constructed steel structure space frame; The lifting device is used to lift the connecting rods that are connected to the space frame sphere to one side of the space frame sphere, thereby completing the fixed installation of all connecting rods on the space frame sphere; Use the aforementioned mobile device to move the lifting and positioning devices to the storage yard; repeat the above steps until the steel structure space frame is assembled.

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