Lifting appliance for processing cold-rolled sheet stacks

Abstract

The utility model discloses a lifting appliance for processing a cold-rolled sheet material stack, which relates to the technical field of lifting tools and comprises door-shaped steel, two adjusting grooves are fixedly arranged in the door-shaped steel and are symmetrically distributed about the center line of the door-shaped steel, three placing grooves are fixedly arranged at the bottom of each adjusting groove and are distributed at equal intervals, and the two ends of each placing groove are connected with the door-shaped steel. A bearing shaft is movably attached to the interior of the containing groove. In the using process, when the lengths of sheet stacks are different, the distance between the two lifting hooks is adjusted by adjusting the positions of the bearing shafts in the adjusting grooves, so that the length of the sheet stacks is met, a steel wire rope can be vertically lifted as far as possible, the horizontal pulling force borne by the steel wire rope is reduced, and the lifting efficiency is improved. The problem that in the using process of an existing lifting appliance for cold-rolled sheet stack machining, when the length of a sheet stack is larger, the inclination angle of a steel wire rope is larger, the tension of the steel wire rope is larger when the sheet stack is lifted, and therefore the steel wire rope is prone to breakage is solved.

Description

Technical Field

[0001] This utility model relates to the field of hoisting tools, and in particular to a hoisting tool for processing cold-rolled sheet metal stacks. Background Technology

[0002] Currently, overhead crane chain slings are mostly used when lifting stacks of cold-rolled sheet metal. In this method, the chain of the crane chain sling passes under the stack before lifting and transporting. Because there is no fixed point between the chain and the sheet metal, the stack is prone to tilting or even falling off during lifting if there is swaying or uneven stress, posing a significant safety hazard. Furthermore, the pressure at the contact point between the chain and the bottom of the stack is high, and uneven stress at the bottom of the stack can cause bending and deformation during lifting, thus affecting the quality of the sheet metal.

[0003] The existing patent publication number is CN214828345U, which discloses a lifting device for stacking cold-rolled thin plates. This utility model uses four lifting devices symmetrically distributed around the bottom of the thin plate stack. The four lifting devices lift simultaneously, applying force evenly to the thin plate stack. Moreover, the lifting point and the bearing point are located on the same vertical line, making the force point stable. This allows the thin plate stack to be lifted and transported smoothly and safely, and the stacking process is also safe and reliable.

[0004] However, during the use of the lifting device for processing cold-rolled sheet stacks disclosed in the above patent, the longer the sheet stack, the greater the inclination angle of the wire rope, and the greater the tension of the wire rope when lifting the sheet stack, which makes the wire rope more prone to breakage. Therefore, we propose a lifting device for processing cold-rolled sheet stacks to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a lifting tool for processing cold-rolled sheet metal stacks, which can solve the problem that when the length of the sheet metal stack is longer, the inclination angle of the wire rope is larger, and the tension of the wire rope is greater when lifting the sheet metal stack, thus making the wire rope more prone to breakage.

[0007] To solve the above-mentioned technical problems, this utility model provides a lifting tool for processing cold-rolled thin sheet stacks, adopting the following technical solution: It includes a portal steel section, inside which two adjusting grooves are fixedly arranged, symmetrically distributed about the center line of the portal steel section. At the bottom of each adjusting groove, three equidistant placement grooves are fixedly arranged, each placement groove having a semi-circular structure. A supporting shaft is movably fitted inside each placement groove. Limiting discs are fixedly arranged at both ends of the supporting shaft. A first steel ring is fixedly arranged between the two limiting discs. A steel wire rope is sleeved on the first steel ring, and a second steel ring is sleeved on the steel wire rope. Fixing discs are fixedly arranged at both ends of the second steel ring, and hooks are mounted on the fixing discs via fixing components.

[0008] Preferably, the supporting shaft, the limiting plate, and the first steel ring are an integral structure, and the fixing plate and the second steel ring are an integral structure.

[0009] Preferably, the two limiting discs are movably fitted to the two sides of the portal steel.

[0010] Preferably, the distance between the upper and lower inner walls of the adjusting groove is equal to the diameter of the supporting shaft, and the inner diameter of the placement groove is equal to the diameter of the supporting shaft.

[0011] Preferably, the fixing component includes a first mounting hole fixedly opened in the middle of the fixing plate, a second mounting hole fixedly opened on the inclined end of the hook, a bolt inserted between the second mounting hole and the first mounting hole, and a fixing nut threadedly connected to the threaded end of the bolt.

[0012] Preferably, the height of the vertical section of the hook is not less than the height of the sheet metal stack.

[0013] Preferably, two portal steel sections are provided, which are arranged perpendicularly to each other and form a cross-shaped structure, with a lifting end fixedly provided at the middle of the top of one of the portal steel sections.

[0014] In summary, this utility model has at least one of the following beneficial effects:

[0015] 1. In the use of this utility model, when the length of the sheet metal stack is different, the position of the support shaft inside the adjustment groove is adjusted, thereby adjusting the distance between the two hooks to accommodate the length of the sheet metal stack. This allows the wire rope to be lifted as vertically as possible, thereby reducing the horizontal tension it experiences. This solves the problem that in the use of existing lifting tools for processing cold-rolled sheet metal stacks, the longer the sheet metal stack, the greater the inclination angle of the wire rope, and the greater the tension of the wire rope when lifting the sheet metal stack, which makes the wire rope more prone to breakage.

[0016] 2. The thin sheet stack is lifted from all four sides using four hooks, which reduces the bending and deformation of the thin sheet stack during lifting and ensures the stability of the thin sheet stack during lifting, thus improving the practicality of the device.

[0017] 3. By installing the fixed components, when the hook breaks or is severely worn and needs to be replaced, simply unscrew the fixing nut and remove the bolt from between the second and first mounting holes to disassemble and replace the hook, thus improving the convenience of device maintenance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top-view three-dimensional structural diagram of a lifting tool for processing cold-rolled sheet metal stacks according to the present invention;

[0020] Figure 2 This is a bottom-view three-dimensional structural diagram of a lifting tool for processing cold-rolled sheet metal stacks according to the present invention;

[0021] Figure 3 These are schematic diagrams of two portal steel structures of this utility model;

[0022] Figure 4 This is a schematic diagram of the supporting shaft and hook structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the disassembled structure of the fixing component of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Portal steel; 2. Lifting end; 3. Adjustment groove; 4. Placement groove; 5. Support shaft; 6. Limiting plate; 7. First steel ring; 8. Steel wire rope; 9. Fixing plate; 10. Second steel ring; 11. Hook; 12. Bolt; 13. Fixing nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5An embodiment of this utility model provides a lifting device for processing cold-rolled sheet metal stacks, including a portal steel 1. Two adjusting grooves 3 are fixedly installed inside the portal steel 1, symmetrically distributed about the center line of the portal steel 1. Three equidistant placement grooves 4 are fixedly installed at the bottom of the adjusting grooves 3. The placement grooves 4 have a semi-circular structure. A supporting shaft 5 is movably fitted inside the placement groove 4. Limiting discs 6 are fixedly installed at both ends of the supporting shaft 5. A first steel ring 7 is fixedly installed between the two limiting discs 6. A steel wire rope 8 is sleeved on the first steel ring 7. A second steel ring 10 is sleeved on the steel wire rope 8. Fixing discs 9 are fixedly installed at both ends of the second steel ring 10. A hook 11 is installed on the fixing disc 9 via a fixing component.

[0027] In use, when the length of the sheet metal stack is different, the position of the support shaft 5 inside the adjustment groove 3 is adjusted, thereby adjusting the distance between the two hooks 11 to accommodate the length of the sheet metal stack. This allows the wire rope 8 to be lifted as vertically as possible, thereby reducing the horizontal tension it experiences. This solves the problem that in the use of existing lifting tools for processing cold-rolled sheet metal stacks, the longer the sheet metal stack, the greater the inclination angle of the wire rope 8, and the greater the tension of the wire rope 8 when lifting the sheet metal stack, which makes the wire rope 8 more prone to breakage.

[0028] In addition, there are two portal steel sections 1, which are perpendicular to each other and form a cross shape. One of the portal steel sections 1 has a lifting end 2 fixed in the middle of its top. The thin plate stack is lifted around the perimeter by four hooks 11, which reduces the bending and deformation of the thin plate stack during the lifting process and ensures the stability of the thin plate stack during lifting, thus improving the practicality of the device.

[0029] Furthermore, the supporting shaft 5, the limiting disc 6, and the first steel ring 7 are integrated into one structure, and the fixing disc 9 and the second steel ring 10 are integrated into one structure. This arrangement makes the connecting parts formed by the supporting shaft 5, the limiting disc 6, and the first steel ring 7 have high strength and good load-bearing capacity. The same applies to the fixing disc 9 and the second steel ring 10.

[0030] Furthermore, the two limiting plates 6 are respectively in contact with the two sides of the portal steel 1. The position of the supporting shaft 5 is limited by the two limiting plates 6, so that the supporting shaft 5 is stably pressed into the inside of the placement groove 4 during the lifting process of the thin plate stack, and will not slip sideways, thus ensuring the stable lifting of the thin plate stack.

[0031] Furthermore, the distance between the upper and lower inner walls of the adjusting groove 3 is equal to the diameter of the supporting shaft 5, and the inner diameter of the placement groove 4 is equal to the diameter of the supporting shaft 5. When it is necessary to adjust the position of the supporting shaft 5, the supporting shaft 5 is pulled up, slid inside the adjusting groove 3, and then placed inside other placement grooves 4. The operation is convenient and quick, improving the flexibility of the device.

[0032] Furthermore, the fixing component includes a first mounting hole, which is fixedly opened in the middle of the fixing plate 9. A second mounting hole is fixedly opened on the inclined end of the hook 11. A bolt 12 is inserted between the second mounting hole and the first mounting hole. A fixing nut 13 is threadedly connected to the threaded end of the bolt 12. When the hook 11 is broken or severely worn, it needs to be replaced. The fixing nut 13 is unscrewed, and the bolt 12 is removed from between the second mounting hole and the first mounting hole. The hook 11 can then be disassembled and replaced, improving the convenience of device maintenance.

[0033] Furthermore, the height of the vertical section of the hook 11 is not less than the height of the sheet metal stack.

[0034] Working principle: In use, the four hooks 11 lift the sheet metal stack from all four sides. After the hook of the external crane catches the lifting end 2, the sheet metal stack can be lifted. The installation of the four hooks 11 reduces the bending deformation of the sheet metal stack during lifting and ensures the stability of the sheet metal stack during lifting. When the length of the sheet metal stack is different, the position of the support shaft 5 inside the adjustment groove 3 is adjusted to adjust the distance between the two hooks 11 to match the length of the sheet metal stack, so that the wire rope 8 can be lifted as vertically as possible, thereby reducing the horizontal tension it is subjected to, making it less likely to break and extending the service life of the device. In addition, when the hook 11 is broken or severely worn, it needs to be replaced. Unscrew the fixing nut 13 and then take the bolt 12 out from between the second mounting hole and the first mounting hole to remove the hook 11 for replacement.

[0035] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A lifting tool for processing cold-rolled sheet metal stacks, comprising portal steel (1), characterized in that: The portal steel (1) has two fixed adjustment grooves (3) inside. The two adjustment grooves (3) are symmetrically distributed about the center line of the portal steel (1). The bottom of the adjustment grooves (3) is fixedly provided with three equally spaced placement grooves (4). The placement grooves (4) are semi-circular in structure. The placement grooves (4) are movably fitted with a support shaft (5). Both ends of the support shaft (5) are fixedly provided with limit plates (6). A first steel ring (7) is fixedly provided between the two limit plates (6). A steel wire rope (8) is sleeved on the first steel ring (7). A second steel ring (10) is sleeved on the steel wire rope (8). Both ends of the second steel ring (10) are fixedly provided with fixing plates (9). A hook (11) is provided on the fixing plate (9) through a fixing component.

2. The lifting tool for processing cold-rolled sheet metal stacks according to claim 1, characterized in that: The supporting shaft (5), the limiting disc (6) and the first steel ring (7) are an integral structure, and the fixing disc (9) and the second steel ring (10) are an integral structure.

3. The lifting tool for processing cold-rolled sheet metal stacks according to claim 1, characterized in that: The two limiting discs (6) are respectively in contact with the two sides of the portal steel (1).

4. A lifting tool for processing cold-rolled sheet metal stacks according to claim 2, characterized in that: The distance between the upper and lower inner walls of the adjustment groove (3) is equal to the diameter of the support shaft (5), and the inner diameter of the placement groove (4) is equal to the diameter of the support shaft (5).

5. A lifting tool for processing cold-rolled sheet metal stacks according to claim 2, characterized in that: The fixing component includes a first mounting hole, which is fixedly opened in the middle of the fixing plate (9). The inclined end of the hook (11) is fixedly opened with a second mounting hole. A bolt (12) is inserted between the second mounting hole and the first mounting hole. A fixing nut (13) is threadedly connected to the threaded end of the bolt (12).

6. A lifting tool for processing cold-rolled sheet metal stacks according to claim 5, characterized in that: The height of the vertical section of the hook (11) is not less than the height of the sheet metal stack.

7. A lifting tool for processing cold-rolled sheet metal stacks according to claim 3, characterized in that: Two portal steel sections (1) are provided, and the two portal steel sections (1) are arranged perpendicular to each other and form a cross-shaped structure. A lifting end (2) is fixedly provided in the middle of the top of one of the portal steel sections (1).

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