Anti-overturning lifting appliance structure for lifting steel plate of stay cable

Abstract

The utility model relates to an anti-overturning lifting appliance structure for lifting a steel plate of a stay cable, and belongs to the technical field of the lifting industry. Comprising a steel disc lifting lug, the steel disc lifting lug is fixed to the outer side face of a steel disc on the anchorage device installation side, a cross beam lifting lug is arranged at the bottom of a cross beam, and the steel disc lifting lug and the cross beam lifting lug are connected through an adjustable chain; steel wire rope lifting lugs are arranged at the two ends of the top of the cross beam respectively, lifting rope loop lifting blocks are arranged on the inner sides of the steel wire rope lifting lugs respectively, a horizontally-arranged lifting shaft penetrates through a center hole of the steel disc, and lifting rope loops are arranged between the lifting rope loop lifting blocks and the lifting shaft in a sleeved mode. The adjustable chain comprises a chain body, and a chain adjuster is arranged on the chain body. And the length of the chain is greater than the distance between the lifting block of the lifting rope ring and the lifting shaft. The acting force of the chain prevents the steel disc from overturning. The steel plate is prevented from turning over and the cross beam is prevented from inclining in the lifting process, and the safety performance of the lifting appliance is improved.

Description

Technical Field

[0001] The utility model relates to a stay cable steel plate lifting anti-turnover lifting device structure, belonging to the technical field of the lifting industry. Background Art

[0002] For large-sized cables of super-long cable-stayed bridges, the anchors at both ends are fixed on round steel plates, such as Figure 1 As shown in the figure; due to the heavy weight of the anchor, the center of gravity of the entire object is eccentric, and the steel plate is easy to flip over during lifting, which poses a great safety risk; at the same time, when the inclined cable steel plate is packaged, an anchor storage area needs to be reserved, which causes the center of gravity of the axial steel plate to be eccentric, and the lifting beam will also be tilted during lifting. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an anti-overturning sling structure for lifting a stay cable steel plate in accordance with the above-mentioned prior art, so as to prevent the steel plate from overturning and the crossbeam from tilting during the lifting process, thereby improving the safety performance of the sling.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problems is: a cable-stayed steel plate lifting and anti-overturning lifting device structure, including a steel plate lifting ear, the steel plate lifting ear is fixed to the outer side surface of the steel plate on the anchor installation side, a crossbeam lifting ear is provided at the bottom of the crossbeam, and the steel plate lifting ear and the crossbeam lifting ear are connected by an adjustable chain; steel wire rope lifting ears are respectively provided at both ends of the top of the crossbeam, and lifting rope loop blocks are respectively provided on the inner sides of the steel wire rope lifting ears, a horizontally arranged lifting shaft is passed through the center hole of the steel plate, and a lifting rope loop is sleeved between the lifting rope loop lifting block and the lifting shaft.

[0005] The adjustable chain comprises a chain, and a chain adjuster is provided on the chain.

[0006] The length of the chain is greater than the distance between the lifting rope ring and the lifting block and the lifting shaft.

[0007] An anti-skid pad is also provided, which is arranged on the ground, and the steel plate after hoisting is arranged on the anti-skid pad.

[0008] Compared with the existing technology, the advantages of this utility model are: a cable-stayed steel plate lifting anti-flip sling structure. Before lifting, according to the position of the anchor, a steel plate lifting lug is installed on the outer side of the steel plate on the anchor side. The chain adjuster is used to adjust the appropriate chain length. After lifting, the steel plate will rotate slightly. When the chain is stressed, the steel plate will stop rotating. The force of the chain prevents the steel plate from flipping. The lifting rope loop lifting block is set inside the wire rope lifting lug to prevent the occurrence of crossbeam tilting due to axial eccentricity, thereby improving the safety performance of the sling. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the currently used steel plate lifting device;

[0010] Figure 2 This is a schematic diagram of an anti-overturning sling structure for lifting a stay cable steel plate according to an embodiment of the present utility model;

[0011] Figure 3 is a schematic diagram of the beam;

[0012] Figure 4 for Figure 3 Side view of;

[0013] In the figure, 1 steel plate lifting eye, 2 chain, 3 chain adjuster, 4 beam lifting eye, 5 wire rope, 6 beam, 6.1 wire rope lifting eye, 6.2 lifting rope ring lifting block, 7 lifting rope ring, 8 lifting shaft, 9 steel plate. DETAILED DESCRIPTION

[0014] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0015] like Figure 2-4 As shown, in this embodiment, a structure of an anti-overturning lifting device for lifting a stay cable steel plate includes a steel plate lifting lug 1, which is fixed to the outer side of a steel plate 9 on the side where the anchor is installed. A crossbeam lifting lug 4 is provided at the bottom of the crossbeam 6, and the steel plate lifting lug 1 and the crossbeam lifting lug 4 are connected by an adjustable chain. Wire rope lifting lugs 6.1 are provided at both ends of the top of the crossbeam 6, and lifting rope loop blocks 6.2 are provided on the inner sides of the wire rope lifting lugs 6.1. A horizontally arranged lifting shaft 8 is passed through the center hole of the steel plate 9, and a lifting rope loop 7 is sleeved between the lifting rope loop block 6.2 and the lifting shaft 8 to form a complete lifting system.

[0016] The adjustable chain includes a chain 2, one end of the chain 2 is connected to the steel plate lifting ear 1, and the other end is connected to the beam lifting ear 4. A chain adjuster 3 is provided on the chain 2, and the chain adjuster 3 is used to adjust the length of the chain. The length of the chain is greater than the distance between the lifting rope loop lifting block and the lifting shaft.

[0017] Anti-skid pads are also provided, which are placed on the ground. When the steel plate is hoisted into place, the steel plate is placed on the anti-skid pads to prevent the steel plate from rotating.

[0018] By calculating the maximum eccentricity of the cable anchor after coiling, an adjustable chain with a load capacity of 6 to 12 tons is used to balance the anchor weight, preventing the steel plate from suddenly turning over during lifting. Before lifting, the steel plate lifting lugs are installed on the outer side of the steel plate on the anchor side according to the position of the anchor. The appropriate chain length is adjusted using the chain adjuster. After lifting, the steel plate will rotate slightly. When the chain is stressed, the steel plate will no longer rotate, and the force of the chain prevents the steel plate from turning over. The lifting rope loop block is placed inside the wire rope lifting lug to prevent axial eccentricity from causing the beam to tilt, thereby improving the safety performance of the lifting equipment.

[0019] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. A structure for preventing overturning of a stay cable steel plate hoist, characterized by: It includes a steel plate lifting ear, which is fixed to the outer side of the steel plate on the anchor installation side, and a beam lifting ear is arranged at the bottom of the beam, and the steel plate lifting ear and the beam lifting ear are connected by an adjustable chain; steel wire rope lifting ears are respectively arranged at both ends of the top of the beam, and a lifting rope loop and lifting block are respectively provided on the inner side of the steel wire rope lifting ear, a horizontally arranged lifting shaft is passed through the center hole of the steel plate, and a lifting rope loop is arranged between the lifting rope loop lifting block and the lifting shaft.

2. The anti-overturning sling structure for lifting a stay cable steel plate according to claim 1, characterized in that: The adjustable chain comprises a chain, and a chain adjuster is provided on the chain.

3. The anti-overturning sling structure for lifting a stay cable steel plate according to claim 2, characterized in that: The length of the chain is greater than the distance between the lifting rope ring and the lifting block and the lifting shaft.

4. The anti-overturning sling structure for lifting a stay cable steel plate according to claim 1, characterized in that: An anti-skid pad is also provided, which is arranged on the ground, and the steel plate after hoisting is arranged on the anti-skid pad.

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