Hoisting and jacking installation point auxiliary device for bolt-sphere net rack and hoisting and jacking method thereof

Abstract

The application discloses a hoisting and jacking installation hoisting point auxiliary device for a bolt ball net rack and a hoisting and jacking method thereof, and belongs to the technical field of large-span space steel structure construction.The device is mainly composed of special modules and general modules which are arranged in a modular manner, the special modules include arc-shaped cross rib upper seats, arc-shaped cross rib lower seats and cross-shaped flange trays which are matched with the bolt ball for installation, and the general modules include flange lifting lugs and jacking frame top supports which are matched with the special modules for installation.The special modules, the general modules and the bolt ball are matched for installation, so that one set of special modules can be used for compatible hoisting and jacking double construction conditions.The device can be repeatedly recycled and reused by adopting a full-bolt detachable assembly process, the defects that the traditional tooling is easy to damage the ball node, has poor universality, low positioning accuracy and cannot be reused are effectively solved, and the device has the advantages of high safety, strong adaptability, standardized construction, good economy and the like.

Description

Technical Field

[0001] This invention belongs to the field of construction technology of large-span spatial steel structures, and specifically relates to the overall installation construction of bolted ball space frames. Specifically, it is a lifting point auxiliary device for lifting and jacking installation of bolted ball space frames and its lifting and jacking method. Background Technology

[0002] The overall lifting or jacking installation of bolted ball space frame structures is a common construction method. However, existing overall lifting or jacking installation methods have significant drawbacks, as follows: 1) Deterioration of stress at bolt ball joints: In traditional construction methods, when lifting bolt ball space frames, the slings pass through the gap between the members and the bolt balls at the bolt ball joints. The direction of the sling force is inconsistent with the direction of the sling winding, which makes the slings prone to slipping on the bolt balls. The bolt balls are subjected to uneven stress, which easily leads to stress concentration. The members are squeezed and the high-strength bolts bear additional shear force, which seriously threatens the structural safety.

[0003] 2) Poor versatility of auxiliary devices: Existing auxiliary devices are mostly designed for specific ball diameters, with poor versatility and low interchangeability between parts. They cannot be adapted to bolt balls of different diameters, resulting in high costs and waste of resources.

[0004] 3) The jacking process is complicated: During the jacking installation, the reinforcement process of the jacking nodes is complicated, the positioning accuracy is difficult to guarantee, and the installation efficiency is low.

[0005] Therefore, there is an urgent need to provide a safe, reliable, versatile, and easy-to-use auxiliary device for ceiling (suspension) points, in order to solve the above-mentioned problems existing in the prior art. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lifting point auxiliary device for lifting and jacking installation of bolt ball space frames that can effectively distribute loads, make the bolt balls bear force evenly, protect the bolt ball nodes, is applicable to various ball diameters and can be reused, as well as a lifting and jacking method for bolt ball space frames based on this device.

[0007] This invention is achieved through the following technical solution: In a first aspect, the present invention provides a lifting point auxiliary device for lifting and jacking installation of bolted ball grid structures, which adopts a modular design and includes a dedicated module and a general module.

[0008] The special module includes an arc-shaped cross rib upper seat, an arc-shaped cross rib lower seat, and a cross-shaped flange tray.

[0009] The arc-shaped cross rib upper seat includes an upper circular flange, and an upper cross rib plate is vertically fixed at the center of the bottom surface of the upper circular flange. An upper arc-shaped groove is provided at the center of the bottom surface of the upper cross rib plate, and the curvature of the upper arc-shaped groove matches the curvature of the outer spherical surface of the bolt ball.

[0010] The arc-shaped cross rib lower seat includes a circular steel plate, a lower cross rib plate is vertically fixed at the center of the top surface of the circular steel plate, a recessed lower arc-shaped groove is provided at the center of the top surface of the lower cross rib plate, and the curvature of the lower arc-shaped groove matches the curvature of the outer spherical surface of the bolt ball; a cross rectangular rib is vertically fixed at the center of the bottom surface of the circular steel plate.

[0011] The cross-shaped flange tray includes a lower circular flange, and four right-angle pieces are vertically fixed at the center of the top surface of the lower circular flange. The right-angle ends of the four right-angle pieces are evenly distributed around the center of the lower circular flange. The four right-angle pieces together form a cross-shaped groove for positioning. The size of the cross-shaped groove is adapted to the size of the cross-shaped rectangular rib.

[0012] The upper arc-shaped cross rib seat and the lower cross-shaped flange tray are arranged opposite each other on the upper and lower sides. The rectangular cross ribs on the lower arc-shaped cross rib seat are inserted into the cross-shaped slots on the cross-shaped flange tray. The upper circular flange of the upper arc-shaped cross rib seat and the lower circular flange of the cross-shaped flange tray are connected by multiple double-headed bolts that are evenly distributed.

[0013] The general-purpose module includes a lifting module and a jacking module. The lifting module is used for lifting the bolted ball grid frame and is installed on the top surface of the upper circular flange of the arc-shaped cross rib seat by double-headed bolts. The jacking module is used for jacking the bolted ball grid frame and is installed on the bottom surface of the lower circular flange of the cross-shaped flange tray by double-headed bolts.

[0014] Furthermore, the lifting module adopts flange lifting lugs, which include a lifting lug circular flange. Two lifting lug plates are vertically fixed at the center of the top surface of the lifting lug circular flange. Pins for connecting slings are installed on the two lifting lug plates. The bottom surface of the lifting lug circular flange is attached to the top surface of the upper circular flange of the arc-shaped cross rib seat and is fixed by double-headed bolts.

[0015] Furthermore, the circular flange of the lifting lug has a ring of arc-shaped holes for inserting double-ended bolts and for adjusting the installation angle.

[0016] Furthermore, the lifting module adopts a lifting frame support, which includes a top circular flange and a bottom circular flange. A supporting steel pipe is vertically fixed between the center of the bottom surface of the top circular flange and the center of the top surface of the bottom circular flange. The top surface of the top circular flange is attached to the bottom surface of the lower circular flange of the cross-shaped flange tray and is fixed by double-headed bolts. The bottom surface of the bottom circular flange is fixed to the horizontal top plate of the lifting frame by bolts.

[0017] Furthermore, the top circular flange of the top support has a ring of arc-shaped elongated holes for inserting double-ended bolts and for adjusting the installation angle; the bottom circular flange of the top support has a ring of arc-shaped elongated holes for inserting bolts and for adjusting the installation angle.

[0018] Furthermore, the cross axes of the upper and lower cross ribs coincide with the axes of the longitudinal and transverse chords on the bolt ball.

[0019] Furthermore, on the cross-shaped flange tray, a rib plate is fixedly connected between the two ends of each right-angle piece and the top surface of the lower circular flange.

[0020] Furthermore, on the flange lifting lugs, two ribbed plates are fixedly connected between the outer plate of each lifting lug plate and the top surface of the circular flange of the lifting lug.

[0021] A second aspect of the present invention provides a method for lifting a bolted ball grid frame using the aforementioned auxiliary device, comprising the following steps: S1: Select the upper and lower arc-shaped cross ribs with corresponding curvature according to the specifications of the bolt ball.

[0022] S2: Insert the rectangular rib at the bottom of the arc-shaped cross rib base into the cross-shaped groove at the top of the cross-shaped flange tray to complete the initial positioning.

[0023] S3: Place the assembled arc-shaped cross rib lower seat and cross-shaped flange tray under the bolt ball, and make the lower cross rib plate at the top of the arc-shaped cross rib lower seat abut against the bolt ball, so that the lower surface of the bolt ball is completely fitted with the lower arc-shaped groove on the lower cross rib plate, and adjust the cross axis of the lower cross rib plate to coincide with the axis of the longitudinal and transverse chords on the bolt ball.

[0024] S4: Place the upper arc-shaped cross rib seat above the bolt ball, and make the upper cross rib plate at the bottom of the upper arc-shaped cross rib seat abut against the bolt ball, so that the upper surface of the bolt ball is completely fitted with the upper arc-shaped groove on the upper cross rib plate, and adjust the cross axis of the upper cross rib plate to coincide with the axis of the longitudinal and transverse chords on the bolt ball.

[0025] S5: Install the flange lifting lugs, and fine-tune the angle through the arc-shaped elongated hole on the circular flange of the lifting lug to make the direction of the line connecting the lifting lug plates consistent with the direction of the force on the sling.

[0026] S6: Use multiple double-ended bolts to pass through the corresponding holes on the circular flange of the flange lifting lug, the upper circular flange of the arc-shaped cross rib seat, and the lower circular flange of the cross-shaped flange tray in sequence, and tighten the nuts to connect all components into a rigid lifting point device.

[0027] S7: Repeat the above steps to install the lifting point devices at all lifting points.

[0028] S8: Insert the sling of the sling into the space between the two lug plates on the flange lug of each lifting point device, install the pin, pin washer and cotter pin, and then the synchronous overall lifting operation can be carried out.

[0029] A third aspect of the present invention provides a method for lifting a bolted ball grid frame using the aforementioned auxiliary device, comprising the following steps: S1: On the upper part of the horizontal top plate of the lifting frame, measure and mark the vertical projection lines of the cross axes of the longitudinal and transverse chords on the bolt ball at the apex.

[0030] S2: Position and install the top support of the lifting frame according to the vertical projection line of the cross axis. Initially tighten the bottom circular flange of the top support to the horizontal top plate of the lifting frame with bolts. The tightening torque is 50% of the final tightening torque.

[0031] S3: Place the cross-shaped flange tray on top of the lifting frame support, so that the lower circular flange of the cross-shaped flange tray fits against the top circular flange of the lifting frame support.

[0032] S4: Insert the rectangular rib at the bottom of the arc-shaped cross rib base into the cross-shaped groove at the top of the cross-shaped flange tray to complete the initial positioning.

[0033] S5: Slowly lift the lifting frame. The lifting frame drives the lifting frame top support, cross-shaped flange tray and arc-shaped cross rib lower seat to rise steadily until the lower cross rib plate at the top of the arc-shaped cross rib lower seat abuts against the bolt ball, so that the lower surface of the bolt ball is completely fitted with the lower arc-shaped groove on the lower cross rib plate, and ensures that the cross axis of the lower cross rib plate coincides with the vertical projection line of the cross axis.

[0034] S6: Place the arc-shaped cross rib upper seat above the bolt ball, and make the upper cross rib plate at the bottom of the arc-shaped cross rib upper seat abut against the bolt ball, so that the upper surface of the bolt ball is completely fitted with the upper arc-shaped groove on the upper cross rib plate, and ensure that the cross axis of the upper cross rib plate coincides with the vertical projection line of the cross axis.

[0035] S7: Use multiple double-ended bolts to pass through the corresponding holes on the upper circular flange of the arc-shaped cross rib seat, the lower circular flange of the cross-shaped flange tray, and the top circular flange of the lifting frame support in sequence, and tighten the nuts to connect all components into a lifting apex device.

[0036] S8: Tighten the lifting frame, and after checking that the positioning is correct, finally tighten the bottom circular flange of the top support to the horizontal top plate of the lifting frame.

[0037] S9: Repeat the above steps to install the lifting devices at all vertices, and then synchronous lifting operations can be carried out.

[0038] Compared with the prior art, the present invention has the following significant advantages: 1) High security By precisely fitting the upper and lower seats of the arc-shaped cross ribs with the surface of the bolt ball, the concentrated load is transformed into a surface load and evenly transferred to the bolt ball, effectively avoiding stress concentration and protecting the safety of the joint.

[0039] 2) High versatility and extremely high turnover rate This invention creatively adopts a modular design concept of "dedicated module + general module". The arc-shaped cross rib upper seat, arc-shaped cross rib lower seat and cross-shaped flange tray are dedicated modules, which only need to be replaced with modules that match the curvature according to the diameter of the bolt ball; the flange lifting lug and the jacking frame support are general modules, which can be reused in the construction of bolt ball space frames of different specifications and different projects. This greatly improves the resource utilization rate and significantly reduces the construction cost.

[0040] 3) Precise positioning and convenient operation The device achieves rapid and precise positioning through the interlocking of the cross-shaped rectangular ribs of the arc-shaped cross rib base with the cross-shaped groove of the cross-shaped flange tray; the arc-shaped elongated hole design on the flange lifting lug allows the lifting lug to be flexibly adjusted within a certain angle range to adapt to different sling angles.

[0041] 4) Process standardization This invention provides a standardized process for lifting and jacking installation, with clear steps that are easy to operate and control for quality. Attached Figure Description

[0042] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1This is the main structural view of the dedicated module.

[0044] Figure 2 for Figure 1 Top view.

[0045] Figure 3 This is the main structural view of the arc-shaped cross rib upper seat.

[0046] Figure 4 for Figure 3 A bottom view.

[0047] Figure 5 This is the main structural view of the arc-shaped cross rib base.

[0048] Figure 6 for Figure 5 Top view.

[0049] Figure 7 for Figure 5 A bottom view.

[0050] Figure 8 This is the main structural view of the cross-shaped flange tray.

[0051] Figure 9 for Figure 8 Top view.

[0052] Figure 10 The main view of the structure for mounting flange lifting lugs on a dedicated module.

[0053] Figure 11 This is the main structural view of the flange lifting lug.

[0054] Figure 12 for Figure 11 The right view.

[0055] Figure 13 for Figure 11 Top view.

[0056] Figure 14 Main view of the structure for mounting the lifting frame support on the dedicated module.

[0057] Figure 15 This is the main structural view of the lifting frame support.

[0058] Figure 16 for Figure 15 Top view.

[0059] In the diagram: 1-Arc-shaped cross rib upper seat; 2-Arc-shaped cross rib lower seat; 3-Cross-shaped flange tray; 4-Flange lifting lug; 5-Piercing frame top support; 6-Double-ended bolt; 7-Arc-shaped elongated hole; 8-Bolt ball; 9-Longitudinal chord; 10-Transverse chord; 11-Web member; 12-Rib plate; 1-1-Upper circular flange; 1-2-Upper cross rib plate; 1-3-Upper arc-shaped groove; 2-1- Circular steel plate; 2-2- Lower cross rib plate; 2-3- Lower arc-shaped groove; 2-4- Cross-shaped rectangular rib; 3-1-Lower circular flange; 3-2-Right angle piece; 3-3-Cross-shaped groove; 4-1-Round flange with lifting lug; 4-2-Lifting lug plate; 4-3-Pin; 5-1-Top circular flange of the top support; 5-2-Supporting steel pipe fitting; 5-3-Bottom circular flange of the top support. Detailed Implementation

[0060] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore merely examples and should not be used to limit the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this invention pertains. Example 1

[0061] like Figures 1 to 16 As shown, this embodiment provides a lifting point auxiliary device for lifting and jacking installation of bolt ball space frame, which assists in the lifting and jacking construction of bolt ball space frame. Each bolt ball node of bolt ball space frame includes bolt ball 8 and longitudinal chord 9, transverse chord 10 and web member 11 connected to bolt ball 8. Considering the characteristics of bolt ball 8, the auxiliary device described in this embodiment adopts a modular setting, mainly composed of special module and general module.

[0062] like Figure 1 and Figure 2 As shown, the special module includes an arc-shaped cross rib upper seat 1, an arc-shaped cross rib lower seat 2, and a cross-shaped flange tray 3, which are directly used in conjunction with the bolt ball 8; the general module is divided into a lifting module and a jacking module. The corresponding type of general module is selected and used in conjunction with the special module according to the two different construction methods of lifting and jacking.

[0063] Specifically, further explanation regarding the dedicated module: like Figure 3 and Figure 4 As shown, the arc-shaped cross rib upper seat 1 includes an upper circular flange 1-1. The upper circular flange 1-1 has a ring of eight circular holes for double-ended bolts 6 to pass through. An upper cross rib plate 1-2 is vertically fixed at the center of the bottom surface of the upper circular flange 1-1. An upper arc-shaped groove 1-3 is provided at the center of the bottom surface of the upper cross rib plate 1-2. The curvature of the upper arc-shaped groove 1-3 matches the curvature of the outer spherical surface of the bolt ball 8.

[0064] like Figures 5 to 6 As shown, the arc-shaped cross rib lower seat 2 includes a circular steel plate 2-1, a lower cross rib plate 2-2 is vertically fixed at the center of the top surface of the circular steel plate 2-1, a recessed lower arc-shaped groove 2-3 is provided at the center of the top surface of the lower cross rib plate 2-2, and the curvature of the lower arc-shaped groove 2-3 matches the curvature of the outer spherical surface of the bolt ball 8; a cross rectangular rib 2-4 is vertically fixed at the center of the bottom surface of the circular steel plate 2-1.

[0065] like Figure 8 and Figure 9 As shown, the cross-shaped flange tray 3 includes a lower circular flange 3-1. The lower circular flange 3-1 has a ring of eight circular holes for double-ended bolts 6 to pass through. Four right-angle pieces 3-2 are vertically fixed at the center of the top surface of the lower circular flange 3-1. The right-angle ends of the four right-angle pieces 3-2 are evenly distributed around the center of the lower circular flange 3-1. The four right-angle pieces 3-2 together form a cross-shaped groove 3-3 for positioning. The size of the cross-shaped groove 3-3 is adapted to the size of the cross-shaped rectangular rib 2-4. In order to further improve the connection strength between the four right-angle pieces 3-2 and the lower circular flange 3-1, a reinforcing plate 12 is fixedly connected between the two sides of each right-angle piece 3-2 and the top surface of the lower circular flange 3-1.

[0066] like Figure 1 As shown, the upper arc-shaped cross rib seat 1 and the cross-shaped flange tray 3 are arranged opposite each other on the upper and lower sides. The cross rectangular ribs 2-4 on the lower arc-shaped cross rib seat 2 are inserted into the cross-shaped slots 3-3 on the cross-shaped flange tray 3. The cross axes of the upper cross rib plate 1-2 of the upper arc-shaped cross rib seat 1 and the lower cross rib plate 2-2 of the lower arc-shaped cross rib seat 2 are both aligned with the axes of the longitudinal and transverse chords 9 and 10 on the bolt ball 8. The upper circular flange 1-1 of the upper arc-shaped cross rib seat 1 and the lower circular flange 3-1 of the cross-shaped flange tray 3 are connected by eight double-headed bolts 6 to ensure the connection between the components is firm and stable.

[0067] Specifically, further explanation of the general modules: like Figure 10 and Figure 14 As shown, the general module includes a lifting module using flange lifting lugs 4 and a lifting module using a lifting frame support 5. The lifting module is used for lifting the bolt ball grid frame and is connected to the top surface of the upper circular flange 1-1 of the arc-shaped cross rib upper seat 1 by double-headed bolts 6. The lifting module is used for lifting the bolt ball grid frame and is connected to the bottom surface of the lower circular flange 3-1 of the cross-shaped flange tray 3 by double-headed bolts 6.

[0068] like Figure 11 and Figure 12As shown, the flange lifting lug 4 includes a lifting lug circular flange 4-1. Two lifting lug plates 4-2 are vertically fixed at the center of the top surface of the lifting lug circular flange 4-1. To further improve the connection strength between the lifting lug plates 4-2 and the lifting lug circular flange 4-1, two reinforcing plates 12 are fixedly connected between the outer plate surface of each lifting lug plate 4-2 and the top surface of the lifting lug circular flange 4-1. Pins 4-3 for connecting lifting cables are installed on the two lifting lug plates 4-2. The pins 4-3 are equipped with pin washers and cotter pins. The bottom surface of the lifting lug circular flange 4-1 is in contact with the top surface of the upper circular flange 1-1 of the arc-shaped cross rib upper seat 1 and is connected and fixed by double-headed bolts 6. To improve the installation adaptability of the flange lifting lug 4, a ring of eight arc-shaped long holes 7 is opened on the lifting lug circular flange 4-1. The arc-shaped long holes 7 are used for the double-headed bolts 6 to pass through and for adjusting the installation angle.

[0069] like Figure 15 and Figure 16 As shown, the lifting frame support 5 includes a top circular flange 5-1 and a bottom circular flange 5-3. A supporting steel pipe 5-2 is vertically fixed between the center of the bottom surface of the top circular flange 5-1 and the center of the top surface of the bottom circular flange 5-3. The top surface of the top circular flange 5-1 is attached to the bottom surface of the lower circular flange 3-1 of the cross-shaped flange tray 3 and is fixed by double-headed bolts 6. The bottom surface of the bottom circular flange 5-3 is fixed to the horizontal top plate of the lifting frame by bolts. Similarly, to improve the installation adaptability of the lifting frame support 5, a ring of eight arc-shaped elongated holes 7 is opened on both the top circular flange 5-1 and the bottom circular flange 5-3. The arc-shaped elongated holes 7 are used for the double-headed bolts 6 and bolts to pass through, and can also be used to adjust their installation angle.

[0070] like Figure 4 , Figure 9 , Figure 13 , Figure 16 As shown, the eight circular holes for double-ended bolts 6 around the upper circular flange 1-1 and the lower circular flange 3-1, as well as the eight arc-shaped elongated holes 7 around the lifting lug circular flange 4-1 and the top circular flange 5-1 for double-ended bolts 6, are all located within a circle of the same radius and are regularly distributed. Based on the characteristic that the diameters of the longitudinal and transverse chords 9 and 10 are larger than the diameter of the web member 11, the eight circular holes or arc-shaped elongated holes 7 on each component are divided into four groups of two. The distance between the two circular holes or arc-shaped elongated holes 7 in each group is smaller than the distance between the two adjacent groups of circular holes or arc-shaped elongated holes 7. The four groups of circular holes or arc-shaped elongated holes 7 are located on both sides of the longitudinal and transverse chords 9 and 10, respectively.

[0071] In the auxiliary device described in this embodiment, the upper arc-shaped cross rib seat 1 and the lower arc-shaped cross rib seat 2 can be made into various models according to different bolt ball diameters 8, so as to realize replacement and reuse as needed; the parts of other components are general-purpose parts made according to various specifications of bolt balls 8 and their corresponding load range, which can be reused under the condition of meeting the specifications of bolt balls 8 and the corresponding load of the space frame hoisting. Example 2

[0072] This embodiment provides a method for lifting a bolted ball space frame using the auxiliary device described in Embodiment 1. In this method, the auxiliary device is a lifting point device for the bolted ball space frame, assembled from an upper arc-shaped cross rib seat 1, a lower arc-shaped cross rib seat 2, a cross-shaped flange tray 3, flange lifting lugs 4, double-ended bolts 6, and bolt balls 8. Figure 10 As shown, the specific lifting method includes the following steps: S1: Based on the bolt ball 8 specification, select the corresponding curvature of the arc-shaped cross rib upper seat 1 and the arc-shaped cross rib lower seat 2.

[0073] S2: Insert the cross-shaped rectangular rib 2-4 at the bottom of the arc-shaped cross rib base 2 into the cross-shaped groove 3-3 at the top of the cross-shaped flange tray 3 to complete the initial positioning.

[0074] S3: Place the assembled arc-shaped cross rib lower seat 2 and cross-shaped flange tray 3 under the bolt ball 8, and make the lower cross rib plate 2-2 at the top of the arc-shaped cross rib lower seat 2 abut against the bolt ball 8, so that the lower surface of the bolt ball 8 is completely fitted with the lower arc-shaped groove 2-3 on the lower cross rib plate 2-2, and adjust the cross axis of the lower cross rib plate 2-2 to coincide with the axis of the longitudinal and transverse chords 9 and 10 on the bolt ball 8.

[0075] S4: Place the arc-shaped cross rib upper seat 1 above the bolt ball 8, and make the upper cross rib plate 1-2 at the bottom of the arc-shaped cross rib upper seat 1 abut against the bolt ball 8, so that the upper surface of the bolt ball 8 is completely fitted with the upper arc-shaped groove 1-3 on the upper cross rib plate 1-2, and adjust the cross axis of the upper cross rib plate 1-2 to coincide with the axis of the longitudinal and transverse chords 9 and 10 on the bolt ball 8.

[0076] S5: Install flange lifting lug 4, and finely adjust the angle through the arc-shaped elongated hole 7 on the circular flange 4-1 of the lifting lug, so that the line connecting the lifting lug plate 4-2 is consistent with the direction of the force on the sling.

[0077] S6: Use multiple double-ended bolts 6 to pass through the corresponding holes on the lifting lug circular flange 4-1 of the flange lug 4, the upper circular flange 1-1 of the arc-shaped cross rib upper seat 1, and the lower circular flange 3-1 of the cross-shaped flange tray 3 in sequence, and tighten the nuts to connect all components into a rigid lifting point device.

[0078] S7: Repeat the above steps to install the lifting point devices at all lifting points.

[0079] S8: Insert the sling of the sling into the two lug plates 4-2 on the flange lug 4 of each lifting point device, install the pin 4-3, pin washer and cotter pin, and then the synchronous overall lifting operation can be carried out. Example 3

[0080] This embodiment provides a method for lifting a bolted ball space frame using the auxiliary device described in Embodiment 1. In this method, the auxiliary device is a bolted ball space frame lifting apex device assembled from an arc-shaped cross rib upper seat 1, an arc-shaped cross rib lower seat 2, a cross-shaped flange tray 3, a lifting frame top support 5, double-ended bolts 6, and bolt balls 8. Figure 14 As shown, the specific lifting method includes the following steps: S1: On the upper part of the horizontal top plate of the lifting frame, measure and mark the vertical projection lines of the cross axes of the longitudinal and transverse chords 9 and 10 on the bolt ball 8 at the apex.

[0081] S2: Position and install the top support 5 of the lifting frame according to the vertical projection line of the cross axis. Initially tighten the bottom circular flange 5-3 of the top support to the horizontal top plate of the lifting frame with bolts. The tightening torque is 50% of the final tightening torque.

[0082] S3: Place the cross-shaped flange tray 3 on top of the lifting frame support 5, so that the lower circular flange 3-1 of the cross-shaped flange tray 3 fits against the top circular flange 5-1 of the lifting frame support 5.

[0083] S4: Insert the cross-shaped rectangular rib 2-4 at the bottom of the arc-shaped cross rib base 2 into the cross-shaped groove 3-3 at the top of the cross-shaped flange tray 3 to complete the initial positioning.

[0084] S5: Start the hydraulic jacking and slowly lift the jacking frame. The jacking frame drives the jacking frame top support 5, the cross-shaped flange tray 3 and the arc-shaped cross rib lower seat 2 to rise steadily until the lower cross rib plate 2-2 at the top of the arc-shaped cross rib lower seat 2 abuts against the bolt ball 8, so that the lower surface of the bolt ball 8 is completely fitted with the lower arc-shaped groove 2-3 on the lower cross rib plate 2-2, and ensure that the cross axis of the lower cross rib plate 2-2 coincides with the vertical projection line of the cross axis.

[0085] S6: Place the arc-shaped cross rib upper seat 1 above the bolt ball 8, and make the upper cross rib plate 1-2 at the bottom of the arc-shaped cross rib upper seat 1 abut against the bolt ball 8, so that the upper surface of the bolt ball 8 is completely fitted with the upper arc-shaped groove 1-3 on the upper cross rib plate 1-2, and ensure that the cross axis of the upper cross rib plate 1-2 coincides with the vertical projection line of the cross axis.

[0086] S7: Use multiple double-headed bolts 6 to pass through the corresponding holes on the upper circular flange 1-1 of the arc-shaped cross rib upper seat 1, the lower circular flange 3-1 of the cross-shaped flange tray 3, and the top circular flange 5-1 of the top support of the lifting frame support 5, and tighten the nuts to connect all the components into a lifting apex device.

[0087] S8: Tighten the lifting frame, and after checking that the positioning is correct, finally tighten the bottom circular flange 5-3 of the top support to the horizontal top plate of the lifting frame.

[0088] S9: Repeat the above steps to install the lifting devices at all apexes. Then, you can also install the apex displacement monitoring system and the fulcrum / support reaction force (axial force) monitoring system for dual control, so that synchronous lifting operations and apex displacement monitoring can be carried out.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A lifting point auxiliary device for hoisting and jacking installation of a bolted ball grid frame, characterized in that: It adopts a modular design, including dedicated modules and general-purpose modules; The special module includes an arc-shaped cross rib upper seat (1), an arc-shaped cross rib lower seat (2), and a cross-shaped flange tray (3). The arc-shaped cross rib upper seat (1) includes an upper circular flange (1-1), an upper cross rib plate (1-2) is vertically fixed at the center of the bottom surface of the upper circular flange (1-1), and an upper concave arc-shaped groove (1-3) is provided at the center of the bottom surface of the upper cross rib plate (1-2). The curvature of the upper arc-shaped groove (1-3) matches the curvature of the outer spherical surface of the bolt ball (8). The arc-shaped cross rib lower seat (2) includes a circular steel plate (2-1), a lower cross rib plate (2-2) is vertically fixed at the center of the top surface of the circular steel plate (2-1), a recessed lower arc-shaped groove (2-3) is provided at the center of the top surface of the lower cross rib plate (2-2), and the curvature of the lower arc-shaped groove (2-3) matches the curvature of the outer spherical surface of the bolt ball (8); a cross rectangular rib (2-4) is vertically fixed at the center of the bottom surface of the circular steel plate (2-1). The cross-shaped flange tray (3) includes a lower circular flange (3-1). Four right-angle pieces (3-2) are vertically fixed at the center of the top surface of the lower circular flange (3-1). The right-angle ends of the four right-angle pieces (3-2) are evenly distributed around the center of the lower circular flange (3-1). The four right-angle pieces (3-2) together form a cross-shaped groove (3-3) for positioning. The size of the cross-shaped groove (3-3) is adapted to the size of the cross rectangular rib (2-4). The upper arc-shaped cross rib seat (1) and the cross-shaped flange tray (3) are arranged opposite each other on the upper and lower sides. The cross rectangular ribs (2-4) on the lower arc-shaped cross rib seat (2) are inserted into the cross-shaped slots (3-3) on the cross-shaped flange tray (3). The upper circular flange (1-1) of the upper arc-shaped cross rib seat (1) and the lower circular flange (3-1) of the cross-shaped flange tray (3) are connected by multiple double-headed bolts (6) evenly distributed. The general module includes a lifting module and a jacking module. The lifting module is used for lifting the bolt ball grid frame and is connected to the top surface of the upper circular flange (1-1) of the arc-shaped cross rib seat (1) by double-headed bolts (6). The jacking module is used for jacking the bolt ball grid frame and is connected to the bottom surface of the lower circular flange (3-1) of the cross-shaped flange tray (3) by double-headed bolts (6).

2. The lifting point auxiliary device for lifting and jacking installation of bolted ball grid frame according to claim 1, characterized in that: The lifting module adopts a flange lifting lug (4). The flange lifting lug (4) includes a lifting lug circular flange (4-1). Two lifting lug plates (4-2) are vertically fixed at the center of the top surface of the lifting lug circular flange (4-1). Pins (4-3) for connecting slings are installed on the two lifting lug plates (4-2). The bottom surface of the lifting lug circular flange (4-1) is attached to the top surface of the upper circular flange (1-1) of the arc-shaped cross rib upper seat (1) and connected and fixed by double-headed bolts (6).

3. The lifting point auxiliary device for lifting and jacking installation of bolted ball grid frame according to claim 2, characterized in that: The circular flange (4-1) with the lifting lug has a ring of long arc-shaped holes (7) for inserting double-ended bolts (6) and for adjusting the installation angle.

4. The lifting point auxiliary device for hoisting and jacking installation of bolted ball grid frame according to claim 1, characterized in that: The lifting module adopts a lifting frame support (5). The lifting frame support (5) includes a top circular flange (5-1) and a bottom circular flange (5-3). A supporting steel pipe (5-2) is vertically fixed between the center of the bottom surface of the top circular flange (5-1) and the center of the top surface of the bottom circular flange (5-3). The top surface of the top circular flange (5-1) is attached to the bottom surface of the bottom circular flange (3-1) of the cross-shaped flange tray (3) and is connected and fixed by double-headed bolts (6). The bottom surface of the bottom circular flange (5-3) is connected and fixed to the horizontal top plate of the lifting frame by bolts.

5. The lifting point auxiliary device for lifting and jacking installation of bolted ball grid frame according to claim 4, characterized in that: The top circular flange (5-1) of the top support has a ring of arc-shaped holes (7) for inserting double-headed bolts (6) and for adjusting the installation angle; the bottom circular flange (5-3) of the top support has a ring of arc-shaped holes (7) for inserting bolts and for adjusting the installation angle.

6. The lifting point auxiliary device for lifting and jacking installation of bolted ball grid frame according to claim 1, characterized in that: The cross axes of the upper cross rib plate (1-2) and the lower cross rib plate (2-2) coincide with the axis directions of the longitudinal and transverse chords (9, 10) on the bolt ball (8).

7. The lifting point auxiliary device for lifting and jacking installation of bolted ball grid frame according to claim 1, characterized in that: On the cross-shaped flange tray (3), each right-angle piece (3-2) has a rib plate (12) fixedly connected between the two sides of its two ends and the top surface of the lower circular flange (3-1).

8. The lifting point auxiliary device for lifting and jacking installation of bolted ball grid frame according to claim 2, characterized in that: On the flange lifting lug (4), two ribbed plates (12) are fixedly connected between the outer plate surface of each lifting lug plate (4-2) and the top surface of the lifting lug circular flange (4-1).

9. A method for lifting a bolted ball grid frame using the auxiliary device as described in claim 3, characterized in that, Includes the following steps: S1: Based on the specifications of the bolt ball (8), select the upper arc-shaped cross rib seat (1) and the lower arc-shaped cross rib seat (2) with the corresponding curvature. S2: Insert the cross rectangular rib (2-4) at the bottom of the arc-shaped cross rib base (2) into the cross-shaped groove (3-3) at the top of the cross-shaped flange tray (3) to complete the initial positioning; S3: Place the assembled arc-shaped cross rib lower seat (2) and cross-shaped flange tray (3) under the bolt ball (8), and make the lower cross rib plate (2-2) at the top of the arc-shaped cross rib lower seat (2) abut against the bolt ball (8), so that the lower surface of the bolt ball (8) is completely fitted with the lower arc-shaped groove (2-3) on the lower cross rib plate (2-2), and adjust the cross axis of the lower cross rib plate (2-2) to coincide with the axis of the longitudinal and transverse chords (9, 10) on the bolt ball (8); S4: Place the arc-shaped cross rib upper seat (1) above the bolt ball (8), and make the upper cross rib plate (1-2) at the bottom of the arc-shaped cross rib upper seat (1) abut against the bolt ball (8), so that the upper surface of the bolt ball (8) is completely fitted with the upper arc-shaped groove (1-3) on the upper cross rib plate (1-2), and adjust the cross axis of the upper cross rib plate (1-2) to coincide with the axis of the longitudinal and transverse chords (9, 10) on the bolt ball (8); S5: Install flange lifting lugs (4), and finely adjust the angle through the arc-shaped long hole (7) on the circular flange (4-1) of the lifting lugs so that the line connecting the lifting lug plates (4-2) is consistent with the direction of the force on the sling; S6: Use multiple double-headed bolts (6) to pass through the corresponding holes on the lifting lug round flange (4-1) of the flange lug (4), the upper round flange (1-1) of the arc-shaped cross rib upper seat (1) and the lower round flange (3-1) of the cross-shaped flange tray (3) in sequence, and tighten the nuts to connect all the components into a rigid lifting point device. S7: Repeat the above steps to install the lifting point devices at all lifting points; S8: Insert the sling of the sling into the two lug plates (4-2) on the flange lug (4) of each lifting point device, install the pin (4-3), pin pad and cotter pin, and then carry out synchronous overall lifting operation.

10. A method for jacking a bolted ball grid frame using the auxiliary device as described in claim 5, characterized in that, Includes the following steps: S1: On the upper part of the horizontal top plate of the lifting frame, measure and mark the vertical projection lines of the cross axes of the longitudinal and transverse chords (9, 10) on the bolt ball (8) at the top point; S2: Position and install the top support of the lifting frame (5) according to the vertical projection line of the cross axis. Initially fasten the bottom circular flange (5-3) of the top support to the horizontal top plate of the lifting frame with bolts. The fastening torque is 50% of the final tightening torque. S3: Place the cross-shaped flange tray (3) on top of the lifting frame support (5) so that the lower circular flange (3-1) of the cross-shaped flange tray (3) fits against the top circular flange (5-1) of the lifting frame support (5); S4: Insert the cross rectangular rib (2-4) at the bottom of the arc-shaped cross rib base (2) into the cross-shaped groove (3-3) at the top of the cross-shaped flange tray (3) to complete the initial positioning; S5: Slowly lift the lifting frame. The lifting frame drives the lifting frame top support (5), the cross-shaped flange tray (3) and the arc-shaped cross rib lower seat (2) to rise steadily until the lower cross rib plate (2-2) at the top of the arc-shaped cross rib lower seat (2) abuts against the bolt ball (8), so that the lower surface of the bolt ball (8) is completely fitted with the lower arc-shaped groove (2-3) on the lower cross rib plate (2-2), and ensure that the cross axis of the lower cross rib plate (2-2) coincides with the vertical projection line of the cross axis. S6: Place the arc-shaped cross rib upper seat (1) above the bolt ball (8), and make the upper cross rib plate (1-2) at the bottom of the arc-shaped cross rib upper seat (1) abut against the bolt ball (8), so that the upper surface of the bolt ball (8) is completely fitted with the upper arc-shaped groove (1-3) on the upper cross rib plate (1-2), and ensure that the cross axis of the upper cross rib plate (1-2) coincides with the vertical projection line of the cross axis. S7: Use multiple double-headed bolts (6) to pass through the corresponding holes on the upper circular flange (1-1) of the arc-shaped cross rib upper seat (1), the lower circular flange (3-1) of the cross-shaped flange tray (3), and the top circular flange (5-1) of the top support of the lifting frame (5) in sequence, and tighten the nuts to connect all the components into a lifting apex device. S8: Tighten the lifting frame, and after checking that the positioning is correct, finally tighten the bottom circular flange (5-3) of the top support to the horizontal top plate of the lifting frame; S9: Repeat the above steps to install the lifting devices at all vertices, and then synchronous lifting operations can be carried out.

Images