Protective device for preventing steel plate from being damaged by electromagnetic chuck

Abstract

A protective device for preventing electromagnetic chucks from damaging steel plates is disclosed, belonging to the technical field of electromagnetic chuck equipment for lifting steel plates. It is used to prevent the ends of the electromagnetic chuck from damaging the surface of the steel plate. The technical solution is as follows: the lower ends of two inner clamping plates are vertically welded to the upper edges of the ends of the electromagnetic chuck. Two rubber plates are placed on the outer sides of the ends of the electromagnetic chuck, with the inner surfaces of the two rubber plates facing the outer surfaces of the inner clamping plates and the end faces of the electromagnetic chuck. The width of the two rubber plates is greater than the width of the ends of the electromagnetic chuck, and the lower ends of the two rubber plates extend above the bottom surface of the electromagnetic chuck. Two outer clamping plates are located on the outer sides of the two rubber plates. Bolt holes are located on the upper parts of the inner and outer clamping plates, and fastening bolts are used to fix the inner clamping plates, rubber plates, and outer clamping plates through these bolt holes. This utility model has a simple structure, is easy to use, effectively prevents the electromagnetic chuck from damaging the surface of the steel plate, ensures the surface quality of the steel plate, and improves the economic benefits of enterprises.

Description

Technical Field

[0001] This utility model relates to a protective device to prevent electromagnetic chucks from damaging steel plates, and belongs to the technical field of electromagnetic chuck equipment for lifting steel plates. Background Technology

[0002] In the processes of finished product unloading, warehousing, transshipment, and shipping on medium and heavy plate production lines, electromagnetic cranes or electromagnetic beam-hanging equipment are required to ensure the surface and edge quality of the steel plates. The main component of these equipment is the electromagnetic chuck, which uses magnetic attraction to move the steel plates. Each electromagnetic beam has 5 or 8 electromagnetic chucks, the number selected based on the length of the steel plate. Since the electromagnetic chucks are entirely made of steel plates and are attached to the beam via chains, they can sway during operation. This can easily cause the edges of the chucks to scratch the steel plate surface. For products with high surface finish requirements, scratches are unacceptable, and quality disputes arising from such scratches are frequent. To completely solve the problem of electromagnetic chucks scratching the steel plate surface, it is essential to design a protective device for the electromagnetic chucks to prevent damage and ensure the quality of the steel plate surface. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a protective device to prevent electromagnetic chucks from damaging steel plates. This protective device can effectively solve the problem of electromagnetic chucks damaging the surface of steel plates, improve the surface quality of steel plates, and ensure that the magnetic force of electromagnetic chucks remains unchanged, so as to complete the work of lifting steel plates.

[0004] The technical solution to the above technical problem is:

[0005] A protective device for preventing electromagnetic chucks from damaging steel plates includes an inner clamping plate, a rubber plate, an outer clamping plate, and fastening bolts. The inner clamping plate is a rectangular steel plate, and the lower ends of the two inner clamping plates are respectively welded vertically to the upper surface edges of both ends of the electromagnetic chuck. The rubber plate is rectangular, and the two rubber plates are respectively placed on the outer sides of both ends of the electromagnetic chuck. The inner side surfaces of the two rubber plates are respectively opposite to the outer side surfaces of the inner clamping plates and the two end faces of the electromagnetic chuck. The lower ends of the two rubber plates are respectively higher than the bottom surface of the electromagnetic chuck. The outer clamping plate is a rectangular steel plate, and the two outer clamping plates are respectively located on the outer sides of the two rubber plates. The upper parts of the inner and outer clamping plates have bolt holes facing each other. The fastening bolts fix the two inner clamping plates, the two rubber plates, and the two outer clamping plates through the bolt holes.

[0006] The aforementioned protective device for preventing the electromagnetic chuck from damaging the steel plate has right-angled triangular reinforcing ribs on the upper surface edges of both ends of the electromagnetic chuck. The reinforcing ribs are located on the central axis between the two ends of the upper surface of the electromagnetic chuck, and the two right-angled sides of the right-angled triangular reinforcing ribs are perpendicularly welded to the upper surface of the electromagnetic chuck and the inner side of the inner clamping plate, respectively.

[0007] The aforementioned protective device for preventing the electromagnetic chuck from damaging the steel plate has the following features: the width of the inner clamping plate matches the width of the electromagnetic chuck's end face; the rubber plate has an inverted T-shape, with the lower part of the rubber plate being wider than the electromagnetic chuck's end face and the upper part being narrower than the inner clamping plate; the lower and upper parts of the inverted T-shaped rubber plate are respectively opposite to the electromagnetic chuck's end face and the inner clamping plate; the lower end of the rubber plate extends 3-5mm above the bottom surface of the electromagnetic chuck; the width of the outer clamping plate matches the width of the inner clamping plate; the upper end of the outer clamping plate is flush with the upper end of the inner clamping plate; and the lower end of the outer clamping plate is located above the lower end of the rubber plate and opposite to the electromagnetic chuck's end face.

[0008] In the aforementioned protective device for preventing the electromagnetic chuck from damaging the steel plate, the bolt holes on the upper part of the inner and outer clamping plates are respectively close to the two side edges of the inner and outer clamping plates. The rubber plate clamped between the inner and outer clamping plates is located inside the bolt holes. The fastening bolts fix the upper part of the inner and outer clamping plates through the bolt holes, and the rubber plate is clamped between the inner and outer clamping plates.

[0009] The beneficial effects of this utility model are:

[0010] The inner and outer clamping plates of this utility model fix the rubber plate to both ends of the electromagnetic chuck. The width and lower end of the rubber plate are greater than the width of the end face of the electromagnetic chuck and higher than the bottom surface of the electromagnetic chuck, respectively, which can prevent the ends and lower end of the electromagnetic chuck from damaging the surface of the steel plate. The reinforcing ribs can make the inner clamping plate firmly fixed.

[0011] This utility model has a simple structure and is easy to use. It can ensure that the magnetic force of the electromagnetic chuck remains unchanged, effectively preventing the electromagnetic chuck from damaging the surface of the steel plate during the lifting process. This ensures the surface quality of the steel plate, reduces objections to the quality of the steel plate caused by surface damage, reduces losses to enterprises caused by surface quality defects, and improves the economic benefits of enterprises. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a structural diagram of the inner clamping plate;

[0014] Figure 3 This is a structural diagram of the outer clamping plate;

[0015] Figure 4This is a schematic diagram of the rubber sheet structure.

[0016] The following are the markings in the diagram: 1. Electromagnetic lifting beam; 2. Chain; 3. Electromagnetic chuck; 4. Inner clamping plate; 5. Rubber plate; 6. Outer clamping plate; 7. Fastening bolts; 8. Reinforcing rib plate. Detailed Implementation

[0017] This utility model consists of an electromagnetic chuck 3, an inner clamping plate 4, a rubber plate 5, an outer clamping plate 6, fastening bolts 7, and reinforcing ribs 8.

[0018] Figure 1 As shown, this utility model has rubber plates 5 installed at both ends of the electromagnetic chuck 3. The rubber plates 5 can prevent the electromagnetic chuck 3 from colliding with the suspended steel plate and causing damage to the steel plate. The rubber plates 5 are clamped and fixed by an inner clamping plate 4 and an outer clamping plate 6, with the inner clamping plate 4 fixed to the electromagnetic chuck 3.

[0019] Figure 1 , 2 The inner clamping plate 4 is a rectangular steel plate. The lower ends of the two inner clamping plates 4 are vertically welded to the upper surface edges of both ends of the electromagnetic chuck 3. The width of the inner clamping plate 4 matches the width of the electromagnetic chuck end face. There are two bolt holes on both sides of the inner clamping plate 4 for fixing the rubber plate 5 and the outer clamping plate 6.

[0020] Figure 1 The diagram shows that two rubber plates 5 are placed on the outer sides of both ends of the electromagnetic chuck 3, the inner surfaces of the two rubber plates 5 are opposite to the outer surfaces of the inner clamping plate 4 and the two ends of the electromagnetic chuck 3, and the outer surfaces of the two rubber plates 5 are opposite to the inner surfaces of the two outer clamping plates 6.

[0021] Figure 4 The rubber plate 5 has an inverted T-shape. The lower width of the rubber plate 5 is greater than the width of the end face of the electromagnetic chuck 3, while the upper width is less than the width of the inner clamping plate 4. The bolt holes of the inner clamping plate 4 are located on the outer sides of the upper surface of the rubber plate 5. The lower and upper parts of the inverted T-shaped surface of the rubber plate 5 are opposite to the end face of the electromagnetic chuck 3 and the inner clamping plate 4, respectively. The lower end of the rubber plate 5 is 3-5mm higher than the bottom surface of the electromagnetic chuck 3. Because the lower end of the rubber plate 5 is higher than the bottom surface of the electromagnetic chuck 3, and the width of the lower part of the rubber plate 5 is greater than the width of the end face of the electromagnetic chuck 3, the bottom and sides of the electromagnetic chuck 3 will not touch the surface of the steel plate during the lifting process, thus avoiding damage to the surface of the steel plate.

[0022] Figure 1 , 3 As shown, the outer clamping plate 6 is a rectangular steel plate. The two outer clamping plates 6 are located on the outside of the two rubber plates 5 respectively. The width of the outer clamping plate 6 is the same as that of the inner clamping plate 4. The upper end of the outer clamping plate 6 is flush with the upper end of the inner clamping plate 4. The lower end of the outer clamping plate 6 is located above the lower end of the rubber plate 5 and is opposite to the end face of the electromagnetic chuck 3.

[0023] Figure 2 , 3 As shown in Figure 4, the bolt holes on the upper part of the inner clamping plate 4 and the outer clamping plate 6 are close to the two side edges of the inner clamping plate 4 and the outer clamping plate 6, respectively. The upper part of the rubber plate 5, which is clamped between the inner clamping plate 4 and the outer clamping plate 6, is located inside the bolt holes. When the fastening bolt 7 fixes the upper part of the inner clamping plate 4 and the outer clamping plate 6 through the bolt holes, the rubber plate 5 does not have bolt holes to connect with the fastening bolt 7. It is just clamped between the inner clamping plate 4 and the outer clamping plate 6. In this way, when clamping the rubber plate 5, the position of the rubber plate 5 can be adjusted up and down, so that the lower end of the rubber plate 5 will wear down and move downward, thus extending the service life of the rubber plate 5.

[0024] Figure 1 The display shows that the upper surfaces of both ends of the electromagnetic chuck 3 have right-angled triangular reinforcing ribs 8. The reinforcing ribs 8 are located on the central axis between the two ends of the upper surface of the electromagnetic chuck 3. The two right-angled sides of the right-angled triangular reinforcing ribs 8 are perpendicularly welded to the upper surface of the electromagnetic chuck 3 and the inner side plate of the inner 4, respectively. The reinforcing ribs 8 can firmly fix the inner clamping plate 4.

[0025] Figure 1 As shown, the electromagnetic chuck 3 is suspended on the electromagnetic beam 1 by the chain 2. There are usually 6-7 electromagnetic chucks 3 on the electromagnetic beam 1. The positions of the electromagnetic chucks 3 are evenly distributed according to the length of the steel plate. The length of the electromagnetic beam 1 is generally 10-15m, but a longer electromagnetic beam 1 can also be selected according to the length of the steel plate.

[0026] An embodiment of this utility model is as follows:

[0027] The inner plate 4 has a thickness of 8mm, a width of 400mm, and a height of 150mm;

[0028] The rubber sheet 5 has a thickness of 10mm, a top width of 200mm, a height of 400mm, a bottom width of 500mm, and a height of 405mm.

[0029] The outer clamping plate 6 has a thickness of 8mm, a width of 400mm, and a height of 400mm;

[0030] Fastening bolt 7 is M14*50;

[0031] The thickness of the reinforcing rib 8 is 8mm, and the side length of the isosceles right triangle is 120mm.

Claims

1. A protective device for preventing electromagnetic chucks from damaging steel plates, characterized in that: It includes an inner clamping plate (4), a rubber plate (5), an outer clamping plate (6), and fastening bolts (7). The inner clamping plate (4) is a rectangular steel plate. The lower ends of the two inner clamping plates (4) are vertically welded to the upper surface edges of both ends of the electromagnetic chuck (3). The rubber plate (5) is rectangular. The two rubber plates (5) are placed on the outer sides of both ends of the electromagnetic chuck (3). The inner side of the two rubber plates (5) is opposite to the outer side of the inner clamping plate (4) and the two ends of the electromagnetic chuck (3). The lower ends of the two rubber plates (5) are higher than the bottom surface of the electromagnetic chuck (3). The outer clamping plate (6) is a rectangular steel plate. The two outer clamping plates (6) are located on the outer side of the two rubber plates (5). The upper parts of the inner clamping plate (4) and the outer clamping plate (6) have bolt holes facing each other. The fastening bolts (7) fix the two inner clamping plates (4), the two rubber plates (5), and the two outer clamping plates (6) through the bolt holes.

2. The apparatus according to claim 1, wherein: The electromagnetic chuck (3) has right-angled triangular reinforcing ribs (8) on the upper surface edges at both ends. The reinforcing ribs (8) are located on the central axis between the two ends of the upper surface of the electromagnetic chuck (3). The two right-angled sides of the right-angled triangular reinforcing ribs (8) are perpendicularly welded to the upper surface of the electromagnetic chuck (3) and the inner side of the inner clamping plate (4), respectively.

3. The apparatus according to claim 1, wherein: The width of the inner clamping plate (4) matches the width of the end face of the electromagnetic chuck (3). The surface of the rubber plate (5) is inverted T-shaped. The lower width of the surface of the rubber plate (5) is greater than the width of the end face of the electromagnetic chuck (3). The upper width of the surface of the rubber plate (5) is less than the width of the inner clamping plate (4). The lower and upper parts of the inverted T-shaped surface of the rubber plate (5) are opposite to the end face of the electromagnetic chuck (3) and the inner clamping plate (4), respectively. The lower end of the rubber plate (5) is 3-5mm higher than the bottom surface of the electromagnetic chuck (3). The width of the outer clamping plate (6) matches the width of the inner clamping plate (4). The upper end of the outer clamping plate (6) is flush with the upper end of the inner clamping plate (4). The lower end of the outer clamping plate (6) is located above the lower end of the rubber plate (5) and is opposite to the end face of the electromagnetic chuck (3).

4. The apparatus according to claim 1, wherein: The bolt holes on the upper part of the inner clamping plate (4) and the outer clamping plate (6) are close to the two sides of the inner clamping plate (4) and the outer clamping plate (6), respectively. The upper part of the rubber plate (5) clamped between the inner clamping plate (4) and the outer clamping plate (6) is located inside the bolt holes. The fastening bolt (7) fixes the upper part of the inner clamping plate (4) and the outer clamping plate (6) through the bolt holes. The rubber plate (5) is clamped between the inner clamping plate (4) and the outer clamping plate (6).

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