A turnover auxiliary tool applied to super-large workpieces

Abstract

The utility model discloses a kind of turnover auxiliary for super-large workpiece, including the support cylinder respectively welded in the both ends of super-large workpiece, two support cylinders are coaxially arranged, and axis passes through the center of gravity of super-large workpiece, two steel wire rope baffle are welded in the end of each support cylinder away from super-large workpiece, the distance between two steel wire rope baffle is greater than steel wire rope cross section diameter, and form the rope groove containing steel wire rope;A support matched with each support cylinder is arranged below, and the support makes super-large workpiece body in suspended state;Lifting lug is welded in the both ends of super-large workpiece.The utility model can make super-large workpiece in the case of having reliable support to carry out continuous turnover, and turnover operation is simpler, safer, can also reduce the use rate of crown block, improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of flipping auxiliary tool technology, and in particular relates to a flipping auxiliary tool applied to ultra-large workpieces. Background Technology

[0002] In the manufacturing of ultra-large workpieces (weighing over 400 tons), the workpiece needs to be flipped to facilitate construction at its bottom. Currently, the known method for flipping ultra-large workpieces involves passing multiple steel wire ropes underneath the workpiece, with each end of the ropes attached to two overhead cranes. The workpiece is lifted by the wire ropes, and one crane is slowly lowered while the other slowly rises to achieve the flip. However, sometimes it's impossible to flip the workpiece 180° in one go. In such cases, the workpiece must first be flipped 90°, lowered, and the wire rope position adjusted before a second flip. After the workpiece is flipped, it must be lowered again and the wire ropes removed. Once the construction at the bottom of the workpiece is complete, the entire process of flipping the workpiece back to its original position must be repeated.

[0003] However, this method cannot achieve continuous workpiece flipping, is time-consuming and labor-intensive, and there is a risk of the workpiece falling during the flipping process. It requires a high level of skill from the operator, and improper operation can easily endanger the safety of equipment and personnel. Utility Model Content

[0004] In order to overcome the problems of existing methods for flipping ultra-large workpieces, which cannot achieve continuous flipping, are time-consuming, labor-intensive, and highly dangerous, this utility model provides a flipping auxiliary tool for ultra-large workpieces. This flipping auxiliary tool can enable ultra-large workpieces to be flipped continuously with reliable support, making the flipping operation simpler and safer, reducing the use of overhead cranes, and improving work efficiency.

[0005] This utility model is implemented as follows: a flipping auxiliary tool for ultra-large workpieces includes support cylinders welded to both ends of the ultra-large workpiece. The two support cylinders are coaxially arranged, and their axes pass through the center of gravity of the ultra-large workpiece. Each support cylinder has two wire rope baffles welded to the end away from the ultra-large workpiece. The distance between the two wire rope baffles is greater than the cross-sectional diameter of the wire rope, forming a rope groove to accommodate the wire rope. A support is provided below each support cylinder to cooperate with it, and the support keeps the ultra-large workpiece body in a suspended state. Lifting lugs are welded to both ends of the ultra-large workpiece.

[0006] In the above technical solution, preferably, jacks are provided on the front and rear sides below the ultra-large workpiece to support it.

[0007] In the above technical solution, a square box is further preferably provided below the jack.

[0008] In the above technical solution, preferably, the top of the support is a semi-circular arc plate, and the inner diameter of the semi-circular arc plate is the same as the outer diameter of the support cylinder.

[0009] In the above technical solution, a further preferred embodiment is that the support includes a base plate and two upright plates welded to the base plate, with the semi-circular arc plate welded to the top of the two upright plates.

[0010] In the above technical solution, a further preferred embodiment is that a vertical support plate and an inclined support plate are welded between the bottom plate and the semi-circular arc plate, and the vertical support plate and the inclined support plate are located between the two vertical plates; a top plate is welded to both sides of the semi-circular arc plate, and the top plate is welded to the vertical plate; a small stiffener is welded between one vertical plate and the bottom plate, and a large stiffener is welded between the other vertical plate and the bottom plate.

[0011] In the above technical solution, preferably, the wire rope baffles are all welded to the outer wall of the support cylinder.

[0012] In the above technical solution, preferably, the support cylinder is formed by rolling and welding steel plates.

[0013] The advantages and positive effects of this utility model are: This utility model relates to a flipping auxiliary tool for ultra-large workpieces. By welding support cylinders onto the two flat surfaces on both sides of the ultra-large workpiece, the two support cylinders are made coaxial, with their axes passing through the center of gravity of the ultra-large workpiece. Two wire rope baffles with a distance between them greater than the cross-sectional diameter of the wire rope are welded onto the outer wall of the support cylinders. A support is set below the support cylinders to cooperate with them, so that the ultra-large workpiece body is in a suspended state, which can realize the continuous flipping of the ultra-large workpiece. The flipping process of the ultra-large workpiece is stable and controllable, reducing the utilization rate of the overhead crane, saving time and labor, improving the safety of the flipping operation, and the flipping auxiliary tool can be reused. Attached Figure Description

[0014] The technical solutions of the embodiments of this application will be further described in detail below with reference to the accompanying drawings. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of this application. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0015] Figure 1 This is the front view of the flipping aid of this utility model; Figure 2 This is a schematic diagram of the support cylinder structure; Figure 3 This is a schematic diagram of the support structure; Figure 4 yes Figure 3 AA sectional view.

[0016] In the diagram: 1. Extra-large workpiece; 2. Lifting lug; 3. Support cylinder; 4. Support; 5. Cylinder body; 6. Wire rope baffle; 7. Base plate; 8. Vertical plate; 9. Semi-circular arc plate; 10. Top plate; 11. Inclined support plate; 12. Vertical support plate; 13. Small stiffener plate; 14. Large stiffener plate; 15. Square box; 16. Jack. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "one," "two," "three," "four," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "joining," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figures 1-4 This utility model provides a flipping aid for ultra-large workpieces, including support cylinders 3 welded to both ends of the ultra-large workpiece 1. The two support cylinders 3 are coaxially arranged, and their axes pass through the center of gravity of the ultra-large workpiece 1. Each support cylinder 3 has two wire rope baffles 6 welded to the end away from the ultra-large workpiece 1. The distance between the two wire rope baffles 6 is greater than the cross-sectional diameter of the wire rope, forming a rope groove to accommodate the wire rope. A support 4 is provided below each support cylinder 3 to cooperate with it. The support 4 keeps the ultra-large workpiece 1 in a suspended state. Lifting lugs 2 are welded to both ends of the ultra-large workpiece 1.

[0021] Weld a support cylinder 3 on each side of the super-large workpiece 1. Place two supports 4 on the ground. The top of the supports 4 is a semi-circular arc plate 9. Use two overhead cranes to lift the super-large workpiece 1 through the support cylinders 3. Place the support cylinders 3 on both sides of the super-large workpiece 1 on the semi-circular arc plates 9 on the top of the two supports 4 respectively. Then use the overhead cranes to pull the lifting lugs 2 on the super-large workpiece 1 upward to rotate and flip the super-large workpiece 1. After the super-large workpiece 1 has been flipped, it can be placed on the supports 4 for construction.

[0022] In a preferred embodiment, jacks 16 are respectively provided on the front and rear sides below the ultra-large workpiece 1 to hold it in place and prevent the ultra-large workpiece 1 from rotating during construction.

[0023] In a preferred embodiment, a square box 15 is provided below the jack 16 to elevate it and ensure that the jack 16 meets the usage requirements.

[0024] In a preferred embodiment, the top of the support 4 is a semi-circular arc plate 9, the inner diameter of which is the same as the outer diameter of the support cylinder 3. The semi-circular arc plate 9 can perfectly fit the outer surface of the ultra-large workpiece 1, providing large-area and uniform contact support. The support cylinders 3 at both ends of the ultra-large workpiece 1 can be placed precisely on the semi-circular arc plates 9 at the top of the two supports 4 without shaking. The height and load-bearing capacity of the support 4 also meet the requirements for workpiece flipping.

[0025] In a preferred embodiment, the support 4 includes a base plate 7 and two vertical plates 8 welded to the base plate 7. The semi-circular arc plate 9 is welded to the top of the two vertical plates 8. The top semi-circular arc plate 9, together with the base plate 7 and the vertical plates 8 below, constitutes a complete support 4 structure. The base plate 7, as the foundation of the entire support 4, can contact the ground and provide stable support over a large area. The two vertical plates 8 are vertically welded to the base plate 7, forming a robust support frame with the base plate 7, which significantly improves the structural strength and rigidity of the support 4, enabling it to withstand greater vertical and lateral loads.

[0026] In a preferred embodiment, a vertical support plate 12 and an inclined support plate 11 are welded between the bottom of the semi-circular arc plate 9 and the base plate 7, and the vertical support plate 12 and the inclined support plate 11 are located between the two upright plates 8; a top plate 10 is welded to both sides of the semi-circular arc plate 9, and the top plate 10 is welded to the upright plates 8; a small stiffener 13 is welded between one of the upright plates 8 and the base plate 7, and a large stiffener 14 is welded between the other upright plate 8 and the base plate 7. In this embodiment, two inclined support plates 11 are provided, which are symmetrically located on both sides of the vertical support plate 12. The inclined support plates 11 directly and obliquely transfer the top load to the bottom plate 7 of the support 4, reducing the bending at the root of the vertical plate 8. The top plate 10 "cubs" the two sides of the semi-circular arc plate 9, which is equivalent to adding "edge sealing" to the arc plate, significantly improving its local circumferential stiffness and preventing the semi-circular arc plate 9 from being "flattened" under the action of the super-large workpiece 1. The vertical support plate 12, the inclined support plate 11, the top plate 10 and the vertical plate 8 together form a three-dimensional "box grid" structure, which multiplies the overall bending and torsional stiffness of the support 4. The large and small stiffening plates 13 are respectively arranged at the root of the vertical plates 8 on both sides to form "triangular stiffening", which significantly improves the fatigue life.

[0027] In a preferred embodiment, the wire rope baffles 6 are all welded to the outer wall of the support cylinder 3 to ensure a firm weld.

[0028] In a preferred embodiment, the support cylinder 3 is made of rolled and welded steel plate, and there is only one longitudinal seam on the support cylinder 3, which improves the fatigue life under cyclic load and makes the quality more stable.

[0029] The specific implementation process of this utility model is as follows: When flipping the workpiece, first place the two supports 4 on a flat surface, maintaining a suitable distance between them. Apply grease to the inner wall of the semi-circular arc plate 9 at the top of the supports 4. Use two overhead cranes to simultaneously lift the workpiece 1 through the support cylinders 3 at both ends. The wire rope passes under the support cylinders 3 and is located in the rope groove between the two wire rope baffles 6. Place the support cylinders 3 at both ends of the super-large workpiece 1 on the semi-circular arc plate 9 at the top of the two supports 4, so that the body of the super-large workpiece 1 is in a suspended state. At this time, use an overhead crane to pull the lifting lug 2 on the body of the super-large workpiece 1 upward through the wire rope to rotate the super-large workpiece 1. After the super-large workpiece 1 is flipped, it can be placed back on the supports 4 for construction to facilitate flipping again. To prevent the oversized workpiece 1 from rotating during construction, two jacks 16 are used to support the front and rear sides of the workpiece 1 from below to fix its angle. Square boxes 15 are used to elevate the workpiece 1 from below. After all the turning work is completed, two overhead cranes are used to lift the oversized workpiece 1 to the ground through the support cylinders 3 at both ends. Before the oversized workpiece 1 leaves the factory, the support cylinders 3 welded to the workpiece must be cut off. The support cylinders 3 and the supports 4 can be reused.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A flipping tool for ultra-large workpieces, characterized in that, The system includes support cylinders welded to both ends of the ultra-large workpiece. The two support cylinders are coaxially arranged, with their axis passing through the center of gravity of the ultra-large workpiece. Each support cylinder has two wire rope baffles welded to the end furthest from the ultra-large workpiece. The distance between the two wire rope baffles is greater than the cross-sectional diameter of the wire rope, forming a rope groove to accommodate the wire rope. A support is installed below each support cylinder to cooperate with it, which keeps the ultra-large workpiece body in a suspended state. Lifting lugs are welded to both ends of the ultra-large workpiece.

2. The flipping fixture for ultra-large workpieces according to claim 1, characterized in that: The super-large workpiece is supported by jacks on both the front and rear sides below it.

3. The flipping fixture for ultra-large workpieces according to claim 2, characterized in that: A square box is installed below the jack.

4. The flipping fixture for ultra-large workpieces according to claim 1, characterized in that: The top of the support is a semi-circular arc plate, and the inner diameter of the semi-circular arc plate is the same as the outer diameter of the support cylinder.

5. The flipping fixture for ultra-large workpieces according to claim 4, characterized in that: The support includes a base plate and two upright plates welded to the base plate, with the semi-circular arc plate welded to the top of the two upright plates.

6. The flipping fixture for ultra-large workpieces according to claim 5, characterized in that: A vertical support plate and an inclined support plate are welded between the bottom plate and the semi-circular arc plate, and the vertical support plate and the inclined support plate are located between the two vertical plates; a top plate is welded to both sides of the semi-circular arc plate, and the top plate is welded to the vertical plate; a small stiffener is welded between one vertical plate and the bottom plate, and a large stiffener is welded between the other vertical plate and the bottom plate.

7. The flipping fixture for ultra-large workpieces according to claim 1, characterized in that: The wire rope baffles are all welded to the outer wall of the support cylinder.

8. The flipping fixture for ultra-large workpieces according to claim 1, characterized in that: The support cylinder is made of rolled and welded steel plate.

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