Flat plate net rack integral lifting ball joint tool
By designing a ball node tooling for lifting the flat mesh, the slip and uneven force problems caused by the traditional wire rope knotting around the ball node are solved, and the vertical and uniform force of the steel strand is achieved, and the safety and convenience of construction are improved.
Patent Information
- Application Number
- CN202421676126.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-16
AI Technical Summary
In the construction of flat grid lifting, the traditional method of knotting the wire rope around the ball nodes can easily lead to slippage and uneven stress, which may lead to shear stress of the steel strand, damage to welds or bolts, causing grid collapse and safety accidents.
A flat mesh frame is designed to lift the ball node tooling, including a tooling welded to the top of the ball node. The tooling is equipped with a vertical steel strand through hole. The steel strand is connected to the steel strand clamp through the through holes. The clamp is blocked from the tooling to ensure the vertical and uniform force of the steel stranded wire.
Through this tooling, the uniform connection between the steel strand and the ball node is achieved, the safety and convenience of the flat grid is improved, and the risk of safety accidents is reduced.
Smart Images
Figure CN223034565U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of flat grid lifting construction, and particularly relates to a ball joint tooling for integral lifting of a flat grid. Background Art
[0002] Steel roofs are commonly used in industrial buildings and large public buildings. The flat grid structure is a hyperstatic structure with good safety and small steel consumption, which can solve the problem of large-span roof enclosure. The construction process of hydraulic integral lifting of the flat grid is one of the commonly used installation methods. The grid is assembled on the ground to avoid high-altitude operations, with high construction safety and high construction efficiency. In the flat grid lifting process, the effective connection between the lifting system and the grid structure is the difficulty and key point of the construction. The traditional construction process uses steel ropes to tie knots around the ball joints, which is prone to slippage during the lifting process, resulting in uneven stress. Even the steel strands generate shear stress, which is easy to cut the welds or bolts connecting the members and the ball joints, leading to the collapse of the flat grid and safety accidents. It is necessary to invent a tooling suitable for ball joints to achieve vertical and uniform stress of the lifting steel strands and ensure the safety and convenience of flat grid lifting. Content of the Utility Model
[0003] An object of the utility model is to solve at least the above problems and provide at least the advantages described later.
[0004] The utility model provides the following technical solution: A ball joint tooling for integral lifting of a flat grid, the ball joint tooling is welded on the top surface of the ball joint of the flat grid; a plurality of vertically arranged steel strand through holes are formed on the ball joint tooling; the steel strands connected with the lifting mechanism pass through the steel strand through holes and are then connected with steel strand clamps, and the steel strand clamps are blocked by the ball joint tooling.
[0005] Further, the ball joint tooling includes a bearing plate, an end plate and a rib plate; the bottom edge of the rib plate is welded to the ball joint, and the rib plate is symmetric about the transverse and longitudinal center lines of the ball joint; the end plate is perpendicularly welded to one side vertical edge of the rib plate, the bottom edge of the end plate is welded to the ball joint, the bearing plate is perpendicularly welded on the top of the end plate and the rib plate, and there are two steel strand through holes on the bearing plate. The centers of the two steel strand through holes are located on the transverse center line of the ball joint, and the two steel strand through holes are symmetric about the longitudinal center line of the ball joint.
[0006] Further, the ball joint tooling further includes a stiffening plate, and the stiffening plate is perpendicularly welded to the bearing plate and the rib plate and is disconnected from the ball joint.
[0007] Further, the bottom edge of the end plate is an arc that fits the surface of the ball joint, the minimum width of the end plate is 300 mm, and the distance from the center line of the end plate to the surface of the ball joint is at least 200 mm;
[0008] The bottom edge of the rib plate is an arc that fits the surface of the ball joint.
[0009] Furthermore, a single-sided V-shaped groove is opened at the bottom edge of the end plate, and full-penetration welding with equal strength is used for welding with the spherical joint.
[0010] A single-sided V-shaped groove is opened at the bottom edge of the rib plate, and full-penetration welding with equal strength is used for welding with the spherical joint; double-sided fillet welding is used for welding the rib plate and the end plate.
[0011] Furthermore, the stiffening plate is connected to the rib plate and the bearing plate by fillet welds.
[0012] Furthermore, the bearing plate, the end plate, the rib plate and the stiffening plate are all steel plates with a thickness of 18 mm.
[0013] Compared with the prior art, the advantages of the present utility model are as follows:
[0014] The spherical joint tooling for integral lifting of a flat grid structure provided by the present utility model provides a convenient and safe connecting tooling for the lifting steel strands and the spherical joints in the flat grid structure lifting process. The spherical joint tooling is made of ordinary steel plates, with easy-to-obtain materials, clear stress principles, and strong operability at the construction site. It subverts the traditional method of using wire ropes to bind the spherical joints in the traditional process, and greatly improves the safety and synchronization of the integral lifting process of the grid structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the front view of the spherical joint tooling for integral lifting of a flat grid structure;
[0016] Figure 2 is the side view of the spherical joint tooling for integral lifting of a flat grid structure;
[0017] Figure 3 is the top view of the spherical joint tooling for integral lifting of a flat grid structure.
[0018] In the figure: 1 - bearing plate; 2 - end plate; 3 - rib plate; 4 - stiffening plate; 5 - steel strand through hole; 6 - spherical joint; 7 - steel strand; 8 - steel strand clamp. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0020] A tooling for integral lifting of spherical joints of a flat grid structure. The tooling for spherical joints is welded to the top surface of the spherical joint 6 of the flat grid structure. There are several vertically arranged steel strand through-holes 5 on the tooling for spherical joints. The steel strands connected to the lifting mechanism pass through the steel strand through-holes 5 and are then connected to steel strand clamps, and the steel strand clamps are blocked by the tooling for spherical joints.
[0021] As Figure 1 、 Figure 2 、 Figure 3 shown in the figure: The tooling for spherical joints includes a bearing plate 1, an end plate 2 and a rib plate 3. The bottom edge of the rib plate 3 is welded to the spherical joint 6, and the rib plate 3 is symmetric with respect to the transverse and longitudinal center lines of the spherical joint 6. The end plate 2 is perpendicularly welded to one vertical edge of the rib plate 3, the bottom edge of the end plate 2 is welded to the spherical joint 6, and the bearing plate 1 is perpendicularly welded to the tops of the end plate 2 and the rib plate 3. There are two steel strand through-holes 5 on the bearing plate 1, and the centers of the two steel strand through-holes 5 are located on the transverse center line of the spherical joint 6, and the two steel strand through-holes 5 are symmetric with respect to the longitudinal center line of the spherical joint 6, so that the lifting tooling is vertically stressed.
[0022] The bearing plate 1, the end plate 2, the rib plate 3 and the stiffening plate 4 are all Q355B steel plates with a thickness of 18 mm.
[0023] The tooling for spherical joints further includes a stiffening plate 4, and the stiffening plate 4 is perpendicularly welded to the bearing plate 1 and the rib plate 3, and there is a break between the stiffening plate 4 and the spherical joint 6.
[0024] The bottom edge of the end plate 2 is an arc that fits the surface of the spherical joint 6. The minimum width of the end plate 2 is 300 mm, and the distance from the center line of the end plate 2 to the surface of the spherical joint 6 is at least 200 mm. The heights on both sides of the end plate 2 are determined by lofting according to the specification dimensions of the spherical joint 6. A single-sided V-shaped groove is opened at the bottom edge of the end plate 2, and equal-strength full penetration welding is used with the spherical joint 6.
[0025] The width of the rib plate 3 is 146 mm and the height is 200 mm. The bottom edge of the rib plate 3 is an arc that fits the surface of the spherical joint 6. A single-sided V-shaped groove is opened at the bottom edge of the rib plate 3, and equal-strength full penetration welding is used with the spherical joint 6. The rib plate 3 and the end plate 2 are welded with double-sided fillet welds.
[0026] The length of the bearing plate 1 is 300 mm, the width is 146 mm, and the diameter of the steel strand through-hole 5 on the bearing plate 1 is 350 mm.
[0027] The height of the stiffening plate 4 is 150 mm and the width is 141 mm. The stiffening plate 4 is connected to the rib plate 3 and the bearing plate 1 by fillet welds. The function of the stiffening plate 4 is to enhance the integrity of the lifting condition.
[0028] After the tooling for spherical joints is welded and before the grid structure is lifted, the welds between the tooling for spherical joints and the spherical joints should be inspected for flaws, and it can be put into use after passing the acceptance.
[0029] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A flat grid integral lifting ball node tooling, characterized by: The ball node tooling is welded to the top surface of the ball node (6) of the flat grid; a plurality of vertical steel strand through holes (5) are constructed on the ball node tooling; the steel strand connected to the lifting mechanism passes through the steel strand through holes (5) and is then connected to a steel strand clamp, which is stopped by the ball node tooling.
2. According to claim 1, a tooling for lifting ball nodes of a flat grid as a whole, characterized in that: The ball node tooling comprises a bearing plate (1), an end plate (2) and a rib plate (3); the bottom edge of the rib plate (3) is welded to the ball node (6), and the rib plate (3) is symmetrical with respect to the transverse and longitudinal center lines of the ball node (6); the end plate (2) is vertically welded to one side of the rib plate (3), the bottom edge of the end plate (2) is welded to the ball node (6), the bearing plate (1) is vertically welded to the top of the end plate (2) and the rib plate (3), and two steel strand through holes (5) are provided on the bearing plate (1), the centers of the two steel strand through holes (5) are located on the transverse center line of the ball node (6), and the two steel strand through holes (5) are symmetrical with respect to the longitudinal center line of the ball node (6).
3. According to claim 2, a tooling for lifting ball nodes of a flat grid as a whole, characterized in that: The ball node tooling also includes a stiffening plate (4), which is vertically welded to the bearing plate (1) and the rib plate (3), and is disconnected from the ball node (6).
4. According to claim 2, a tooling for lifting ball nodes of a flat grid as a whole, characterized in that: The bottom edge of the end plate (2) is an arc shape that matches the surface of the ball node (6), the minimum width of the end plate (2) is 300 mm, and the center line of the end plate (2) is at least 200 mm away from the surface of the ball node (6); The bottom edge of the rib plate (3) is an arc shape that matches the surface of the ball node (6).
5. According to claim 3, a tooling for lifting ball nodes of a flat grid as a whole, characterized in that: The bottom edge of the end plate (2) is provided with a single-sided V-shaped groove, and is welded to the ball node (6) with equal penetration strength; The bottom edge of the rib plate (3) is provided with a single-sided V-shaped groove, and is welded to the ball node (6) with equal penetration; the rib plate (3) and the end plate (2) are welded with double-sided fillet welds.
6. The tooling for lifting ball nodes of a flat grid as a whole according to claim 5 is characterized by: The stiffening plate (4) is connected to the rib plate (3) and the bearing plate (1) by using fillet welds.
7. The tooling for lifting ball nodes of a flat grid as a whole according to claim 5 is characterized by: The bearing plate (1), end plate (2), rib plate (3) and stiffening plate (4) are all steel plates with a thickness of 18 mm.