Clamping tool for transferring and turning over extra-heavy workpiece

Abstract

A clamping tool for transferring and turning over extra-heavy workpieces comprises a fixed frame beam, a detachable cross beam and a fastener, the fixed frame beam is of an open frame structure formed by a lifting lug plate and a main beam, the fixed frame beam is connected with the detachable cross beam through the fastener, and the fixed frame beam and the detachable cross beam form a closed frame structure. According to the utility model, the fixed frame beam and the detachable cross beam can be conveniently assembled or disassembled, so that the carrying requirements of heavy objects with different sizes or shapes can be met through rapid adjustment according to actual requirements. Especially for a large-scale project, the flexibility greatly improves the field operation efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary lifting tools, in particular to a clamping tool for transporting and turning over extremely heavy workpieces. Background Art

[0002] In the manufacturing process of ship lifts, the counterweight block in the main engine system is an important component. The torque counterweight block is made by welding two steel plates with a thickness of 169mm. It is 9 meters long, 2 meters wide, 368mm thick, and weighs 45 tons in total. During the manufacturing process, the entire component needs to be transported and turned over for machining. The conventional practice is to weld four lifting lugs on the side of the stacked plate, and then cut and grind them after the turning is completed. This method not only takes a lot of time but also requires materials to make the lifting lugs. In ship lift manufacturing, the counterweight system is more than 10,000 tons. This method will waste a lot of time and materials. Therefore, in view of the shortcomings of the existing technology, it is urgent to invent a turning tool that can solve the above problems. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a clamping fixture for transferring and turning extremely heavy workpieces. This utility model allows for convenient assembly and disassembly of fixed frame beams and detachable crossbeams, allowing for rapid adjustment to accommodate the handling of heavy objects of varying sizes and shapes. This flexibility significantly improves on-site operational efficiency, particularly for large-scale projects.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A clamping tool for transferring and turning over extra-heavy workpieces comprises a fixed frame beam, a detachable crossbeam and fasteners, wherein the fixed frame beam is composed of a lug plate and a main beam to form an open frame structure, and the fixed frame beam and the detachable crossbeam are connected by fasteners, and the fixed frame beam and the detachable crossbeam form a closed frame structure.

[0006] Preferably, the fixed frame beam is welded with Q355B steel, the main beam has an H-shaped cross-section, and two integrally cut and formed lug plates are provided on both sides of the main beam.

[0007] Preferably, the detachable crossbeam is welded with Q355B steel, the cross section of the detachable crossbeam is H-shaped, and bolt holes are drilled on the web of the detachable crossbeam.

[0008] Preferably, there are two fasteners, and the fasteners are M48 10.9 grade high-strength bolts.

[0009] Preferably, the fixed frame beam is a square frame.

[0010] The utility model can achieve the following beneficial effects:

[0011] 1. This utility model allows for easy assembly or disassembly of fixed frame beams and detachable crossbeams, allowing for quick adjustment to accommodate heavy objects of varying sizes and shapes. This flexibility significantly improves on-site operational efficiency, particularly for large-scale projects.

[0012] 2. The fixed frame beams and detachable cross beams welded from Q355B steel, and the use of M48 10.9-grade high-strength bolts as fasteners, ensure the high strength and stability of the entire structure. It can effectively carry and safely transport heavy objects, reducing the risk of accidents that may occur during operation.

[0013] 3. The H-section main beam and detachable crossbeam not only provide good bending resistance, but also increase the overall rigidity of the structure. At the same time, the bolt holes reserved on the detachable crossbeam facilitate connection with other equipment or accessories, making this set of tools suitable for a wider range of heavy object handling occasions.

[0014] 4. The square frame-shaped fixed frame beam and the integrally blanked and formed lifting lug plates on both sides of the main beam provide clear position indications for the lifting points, which is conducive to the operator to install and move the work accurately, simplifying the operation process and reducing the requirements for operating skills. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural diagram of the utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the fixed frame beam of the utility model;

[0018] Figure 3 This is a rendering of the utility model.

[0019] In the figure: fixed frame beam-1, removable cross beam-2, fastener-3, ear plate-4, main beam-5;

[0020] Lifting point No. 1 - 6; Lifting point No. 2 - 7; Lifting point No. 3 - 8; Lifting point No. 4 - 9. DETAILED DESCRIPTION

[0021] The preferred solution is Figures 1 to 3 As shown, a clamping tool for transporting and turning over extremely heavy workpieces includes a fixed frame beam 1, a detachable crossbeam 2, and fasteners 3, wherein the fixed frame beam 1 includes a lug plate 4 and a main beam 5; the fasteners 3 are high-strength bolts.

[0022] The fixed frame beam 1 is the main load-bearing bracket, and the fixed frame beam 1 includes a lug plate 4 and a main beam 5; both are welded with Q355B steel with a plate thickness of 16 mm, and the main cross-section is H-shaped with good bending resistance. There are two integrally cut and formed lug plates on both sides, which are lifting points for lifting. There are bolt holes next to the lug plates for inserting high-strength bolts for connection.

[0023] The detachable crossbeam 2 is welded with Q355B steel with a thickness of 16 mm. The main cross section is H-shaped and has good bending resistance. Bolt holes are drilled on the web, which are drilled together with the fixed frame beam 1 to ensure the matching relationship between the two.

[0024] There are two fasteners 3, which are M48 10.9 grade high-strength bolts.

[0025] Example 1:

[0026] like Figure 1-2 As shown, the clamping fixture is used in pairs. Assemble the fixture to the counterweight block, control the distance between the two fixtures according to the calculated center of gravity, and tighten the bolts to make the fixture and the counterweight block a whole. At this time, there are four hanging points, such as Figure 3 shown.

[0027] During the transfer process, a double-hook gantry crane is used. One hook lifts lifting points No. 1 and No. 2, and the other hook lifts lifting points No. 3 and No. 4. The hooks are then lifted at the same time. After reaching a certain height, they are horizontally transferred to the piers in the target area, and then the double hooks fall to complete the transfer.

[0028] During the turning process, a double-hook gantry crane is used. One hook lifts the No. 1 and No. 2 lifting points, and the other hook lifts the No. 3 and No. 4 lifting points. Then the hooks are lifted at the same time. After reaching a certain height, the No. 3 and No. 4 lifting points begin to descend until the No. 1 and No. 2 lifting points are fully stressed. At this time, the No. 3 and No. 4 lifting point shackles are removed, and the wire rope continues to hang on the No. 3 and No. 4 lifting points from the back of No. 1 and No. 2. Then the No. 3 and No. 4 lifting points are lifted until the counterweight is level and the turning is completed.

[0029] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A clamping tool for transporting and turning extra-heavy workpieces, characterized by: The invention comprises a fixed frame beam (1), a detachable cross beam (2) and a fastener (3), wherein the fixed frame beam (1) is composed of a lug plate (4) and a main beam (5) to form an open frame structure, and the fixed frame beam (1) and the detachable cross beam (2) are connected by the fastener (3), and the fixed frame beam (1) and the detachable cross beam (2) form a closed frame structure.

2. The clamping tool for transporting and turning extra-heavy workpieces according to claim 1, characterized in that: The fixed frame beam (1) is welded with Q355B steel, the main beam (5) has an H-shaped cross section, and two integrally cut and formed hanging ear plates (4) are provided on both sides of the main beam (5).

3. The clamping tool for transporting and turning extra-heavy workpieces according to claim 1, characterized in that: The detachable cross beam (2) is welded with Q355B steel, the cross section of the detachable cross beam (2) is H-shaped, and bolt holes are drilled on the web of the detachable cross beam (2).

4. The clamping tool for transporting and turning extra-heavy workpieces according to claim 1, characterized in that: There are two fasteners (3), and the fasteners (3) are M48 10.9 grade high-strength bolts.

5. The clamping tool for transporting and turning extra-heavy workpieces according to claim 1, characterized in that: The fixed frame beam (1) is a square frame.

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