Vacuum suction lifting device structure for steel plant production

Abstract

The utility model relates to a vacuum adsorption lifting appliance structure for steel plant production, including hanging beam, vacuum chuck, vacuum generating device, first electric contact pressure gauge and controller, the utility model discloses the inside of hanging beam is extracted as negative pressure state through vacuum generating device, the pressure -maintaining effect of hollow hanging beam is played, and the vacuum chuck is adsorbed on the board and is transferred through the negative pressure in the inside of hanging beam, when the vacuum pressure in the inside of hanging beam falls below the threshold range that sets when first electric contact pressure gauge detects, the controller controls vacuum generating device to open, continues to extract negative pressure, and vacuum generating device does not need to work continuously, in the case where power failure or air leakage occurs, the negative pressure state in the inside of hanging beam can guarantee that the adsorbed board does not fall for twenty minutes and above, guarantees the safety of the hoisting process, is favorable to the probability of the occurrence of the reduction of safety accident.

Description

Technical Field

[0001] This utility model relates to the field of vacuum adsorption lifting equipment technology, and in particular to a vacuum adsorption lifting equipment structure used in steel plant production. Background Technology

[0002] Iron is the "primary product" of steel products. After further smelting, it can be made into steel. The main difference between the two is the amount of carbon content in the iron-based product. The product obtained directly from iron smelting is crude steel (in solid state, it is called steel billet or steel ingot). Crude steel is processed into steel products through methods such as casting, rolling, forging, and extrusion.

[0003] Steel is often transported using lifting devices. Currently, most lifting devices on the market have some problems, either being unsafe or unsuitable. They can be broadly categorized into two types. The first is mechanical clamping, which is the most common method. The disadvantages of this method are that it can easily damage the surface of the item and requires specific clamping positions and space, thus limiting its adaptability. The second type uses vacuum suction. Vacuum lifting devices rely on a vacuum source to create a vacuum inside the suction cup. The suction cups are typically made of silicone, natural rubber, or nitrile rubber, and can handle or load materials such as sheets and glass without damage. While vacuum suction lifting devices have many advantages, such as fast operation, wide applicability, and energy efficiency, and are widely used in steel production, they still have certain drawbacks. To maintain a stable vacuum, the vacuum generator needs to operate continuously. If a power outage or air leak occurs, the vacuum will disappear, causing the sheet metal to fall, which can easily lead to a safety accident. Utility Model Content

[0004] This utility model provides a vacuum adsorption lifting device structure for steel plant production, which can solve the problem that the vacuum lifting device in the prior art needs to work continuously. Once the power is cut off or there is a gas leak, the vacuum will disappear, and the plate will fall, which can easily cause a safety accident.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a vacuum adsorption lifting device structure for steel plant production, comprising: The lifting beam is a hollow, sealed container. An adsorption assembly, comprising a vacuum suction cup movably connected to the lower end of a suspension beam; A vacuum generating device is installed on a lifting beam, which is connected to both the vacuum generating device and a vacuum suction cup. The vacuum generating device is used to extract gas from inside the lifting beam. The first electrical contact pressure gauge is connected to the inside of the lifting beam. The first electrical contact pressure gauge is used to detect the vacuum level inside the lifting beam and generate a detection signal. The controller is electrically connected to the first electrical contact pressure gauge and the vacuum generator, and is used to control the opening or closing of the vacuum generator by detecting signals.

[0006] Preferably, a first control valve is connected between the vacuum generating device and the lifting beam. The first control valve is used to control the opening or closing of the vacuum generating device and the lifting beam. The first control valve is electrically connected to the controller.

[0007] Preferably, the system further includes a second electrical contact pressure gauge and a second control valve, the second electrical contact pressure gauge and the second control valve being electrically connected to the controller respectively; The second electrical contact pressure gauge is connected to the inside of the vacuum suction cup. The second electrical contact pressure gauge is used to detect the vacuum level inside the vacuum suction cup and generate a detection signal. The second control valve is connected between the lifting beam and the vacuum suction cup, and is used to control the opening or closing of the lifting beam and the vacuum suction cup.

[0008] Preferably, the interior of the lifting beam is provided with several partitions, and several through holes are provided on the partitions.

[0009] Preferably, the adsorption components are of several kinds, and each of the several adsorption components is divided into two groups, with the two groups of adsorption components symmetrically distributed on both sides of the suspension beam.

[0010] Preferably, the adsorption assembly further includes a connecting ear, a steel cable, and a connecting plate; The connecting lug is located on the side of the lifting beam, and two steel cables are connected to the connecting lug. The lower ends of the two steel cables are connected to different ends of the connecting plate, and the vacuum suction cup is hinged to the middle of the lower end of the connecting plate.

[0011] Preferably, a sealing strip is provided at the edge of the suction surface of the vacuum suction cup.

[0012] Preferably, the lifting beam is symmetrically provided with connecting parts.

[0013] Compared to existing technologies, this invention utilizes a combination of a lifting beam, vacuum suction cups, a vacuum generator, a first electrical contact pressure gauge, and a controller. The vacuum generator creates a negative pressure inside the lifting beam, with the hollow beam acting as a pressure-maintaining element. This negative pressure allows the vacuum suction cups to adhere to the sheet material for transport. When the first electrical contact pressure gauge detects that the vacuum pressure inside the lifting beam has dropped below a set threshold, the controller activates the vacuum generator to continue creating negative pressure. The vacuum generator does not need to operate continuously. In the event of a power outage or air leakage, the negative pressure inside the lifting beam can maintain the adhesion of the sheet material for more than twenty minutes without it falling, ensuring safety during the lifting process and reducing the probability of accidents.

[0014] Compared to existing technologies, the lifting beam is made of Q355 steel through seamless welding. It serves as both a vacuum storage and load-bearing beam, simplifying the beam's structure, significantly reducing its weight, and lowering equipment costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a schematic cross-sectional view of the lifting beam structure of this utility model; Figure 5 This is a schematic diagram of the partition structure of this utility model; Figure 6 This is a three-dimensional structural diagram of the present invention.

[0016] In the diagram: 1. Hanging beam; 2. Partition plate; 3. Through hole; 4. Vacuum suction cup; 5. Vacuum generator; 6. Sealing strip; 7. Controller; 8. Connector; 9. Connecting lug; 10. Steel cable; 11. Connecting plate. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of 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.

[0018] like Figures 1 to 6 As shown, a vacuum adsorption lifting device structure for use in steel mill production includes: Lifting beam 1 is a hollow cylindrical sealed container made of Q355 steel through seamless welding. The inner wall is sandblasted to Sa2.5 grade, which helps to reduce gas adsorption. The adsorption assembly includes a vacuum suction cup 4, which is movably connected to the lower end of the lifting beam 1. Vacuum generating device 5, preferably a vacuum pump, is installed on the lifting beam 1. The lifting beam 1 is connected to the vacuum generating device 5 and the vacuum suction cup 4 respectively. The vacuum generating device 5 is used to extract gas from the lifting beam 1. The first electrical contact pressure gauge is connected to the inside of the lifting beam 1. The first electrical contact pressure gauge is used to detect the vacuum level inside the lifting beam 1 and generate a detection signal. The controller 7 is electrically connected to the first electrical contact pressure gauge and the vacuum generator 5, respectively. The controller 7 is used to control the opening or closing of the vacuum generator 5 through detection signals.

[0019] In practical use, the vacuum generator 5 draws the interior of the lifting beam 1 into a negative pressure state. The hollow lifting beam 1 plays a pressure-maintaining role. The vacuum suction cup 4 is adsorbed onto the board and transferred by the negative pressure inside the lifting beam 1. When the pressure gauge of the first electrical contact detects that the vacuum pressure inside the lifting beam 1 drops below the set threshold range, the controller 7 controls the vacuum generator 5 to start and continue to draw negative pressure. The vacuum generator 5 does not need to work continuously. In the event of power failure or air leakage, the negative pressure state inside the lifting beam 1 can ensure that the board is adsorbed for more than 20 minutes without falling off.

[0020] To improve the safety of the hoisting process, preferably, a first control valve is connected between the vacuum generating device 5 and the lifting beam 1. The first control valve is used to control the opening or closing of the vacuum generating device 5 and the lifting beam 1, and the first control valve is electrically connected to the controller 7.

[0021] Specifically, the first electrical contact pressure gauge monitors the vacuum pressure inside the lifting beam 1 in real time. When the vacuum pressure inside the lifting beam 1 is lower than the set threshold range, the controller 7 controls the vacuum generator 5 and the first control valve to open, and the vacuum generator 5 and the lifting beam 1 are in a conductive state. The vacuum generator 5 continues to draw vacuum from the lifting beam 1. When the vacuum pressure inside the lifting beam 1 reaches the upper limit of the set threshold range, the controller 7 controls the vacuum generator 5 and the first control valve to close, so that the vacuum pressure inside the lifting beam 1 is maintained, thereby improving the safety of the lifting process.

[0022] To improve the safety of the hoisting process, preferably, it also includes a second electric contact pressure gauge and a second control valve, which are electrically connected to the controller 7 respectively. The second electrical contact pressure gauge is connected to the inside of the vacuum suction cup 4. The second electrical contact pressure gauge is used to detect the vacuum level inside the vacuum suction cup 4 and generate a detection signal. The second control valve is connected between the lifting beam 1 and the vacuum suction cup 4. The second control valve is used to control the opening or closing of the lifting beam 1 and the vacuum suction cup 4.

[0023] Specifically, during the transfer process, when one or more vacuum suction cups 4 malfunction and leak air, the second electrical contact pressure gauge detects the decrease in vacuum pressure of the leaking vacuum suction cup 4 and transmits the detection signal to the controller 7. The controller 7 controls the second control valve connected to that part of the vacuum suction cup 4 to close, maintaining the vacuum pressure inside the lifting beam 1, so that the plate adsorbed by the lifting device does not fall off, thereby ensuring the safety of the lifting.

[0024] To improve the safety of the hoisting process, preferably, the inside of the hoisting beam 1 is welded with several partitions 2, and several through holes 3 are opened on the partitions 2.

[0025] Specifically, by welding several partitions 2 inside the lifting beam 1 and opening several through holes 3 on the partitions 2, it is beneficial to reduce airflow turbulence, stabilize the vacuum pressure inside the lifting beam 1, prevent the plates adsorbed by the lifting device from falling off, and thus ensure the safety of lifting.

[0026] To improve the safety of the hoisting process, preferably, there are several adsorption components, and each adsorption component is divided into two groups, with the two groups of adsorption components symmetrically distributed on both sides of the hoisting beam 1.

[0027] Specifically, the two sets of adsorption components are located on both sides of the lifting beam 1, so that during the lifting process, the center of gravity of the plate is located on the projection of the central axis of the lifting beam 1 onto the plate, maintaining the stability of the plate, preventing the plate adsorbed by the lifting device from falling, and thus ensuring the safety of the lifting.

[0028] In order to achieve the purpose of hoisting non-planar placed plates, preferably, the adsorption assembly also includes connecting ears 9, steel cables 10 and connecting plates 11; The connecting ear 9 is located on the side of the lifting beam 1. Two steel cables 10 are connected to the connecting ear 9. The lower ends of the two steel cables 10 are connected to different ends of the connecting plate 11. The vacuum suction cup 4 is hinged to the middle of the lower end of the connecting plate 11.

[0029] Specifically, during the process of the vacuum suction cup 4 falling close to the non-planar board, one end of the vacuum suction cup 4 first contacts the board, and the other end can continue to fall, so that the entire adsorption surface of the vacuum suction cup 4 is in full contact with the board, improving airtightness, preventing the board adsorbed by the lifting device from falling, and thus ensuring the safety of the lifting.

[0030] To improve the safety of the lifting process, preferably, a sealing strip 6 is provided at the edge of the suction surface of the vacuum suction cup 4.

[0031] Specifically, the sealing strip 6 is made of high-temperature resistant materials such as silicone rubber, EPDM rubber, or fluororubber, making this lifting device suitable for use in the high-temperature environment of steel plants, and maintaining the airtightness of the vacuum suction cup 4 to prevent the plates adsorbed by the lifting device from falling off, thereby ensuring the safety of lifting.

[0032] To achieve the purpose of hoisting the sheet metal, preferably, the hoisting beam 1 is symmetrically equipped with connecting parts 8.

[0033] Specifically, connector 8 is used to connect with transfer equipment, such as a gantry crane, to transfer the sheet metal to the target location.

[0034] Compared to existing technologies, this invention utilizes a combination of a lifting beam 1, a vacuum suction cup 4, a vacuum generating device 5, a first electrical contact pressure gauge, and a controller 7. The vacuum generating device 5 creates a negative pressure inside the lifting beam 1, with the hollow beam 1 acting as a pressure maintainer. The negative pressure inside the lifting beam 1 causes the vacuum suction cup 4 to adhere to the sheet material for transport. When the first electrical contact pressure gauge detects that the vacuum pressure inside the lifting beam 1 has dropped below a set threshold, the controller 7 activates the vacuum generating device 5 to continue creating negative pressure. The vacuum generating device 5 does not need to operate continuously. In the event of a power outage or air leakage, the negative pressure inside the lifting beam 1 can maintain the adhesion of the sheet material for more than twenty minutes without it falling, ensuring safety during the lifting process and reducing the probability of accidents.

[0035] Compared to existing technologies, the lifting beam 1 is made of Q355 steel through seamless welding. It serves as both a vacuum storage and load-bearing beam, simplifying the structure of the lifting beam 1, significantly reducing its weight, and lowering equipment costs.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum adsorption lifting device structure for use in steel plant production, characterized in that, include: The lifting beam (1) is a hollow, sealed container; The adsorption assembly includes a vacuum suction cup (4), which is movably connected to the lower end of the suspension beam (1). Vacuum generator (5), the vacuum generator (5) is installed on the lifting beam (1), the lifting beam (1) is connected to the vacuum generator (5) and the vacuum suction cup (4) respectively, and the vacuum generator (5) is used to extract the gas in the lifting beam (1); The first electric contact pressure gauge is connected to the inside of the lifting beam (1). The first electric contact pressure gauge is used to detect the vacuum level inside the lifting beam (1) and generate a detection signal. The controller (7) is electrically connected to the first electrical contact pressure gauge and the vacuum generator (5) respectively. The controller (7) is used to control the opening or closing of the vacuum generator (5) by detecting the signal.

2. The vacuum adsorption lifting device structure for steel plant production according to claim 1, characterized in that: A first control valve is connected between the vacuum generating device (5) and the lifting beam (1). The first control valve is used to control the opening or closing of the vacuum generating device (5) and the lifting beam (1). The first control valve is electrically connected to the controller (7).

3. The vacuum adsorption lifting device structure for steel plant production according to claim 1, characterized in that: It also includes a second electric contact pressure gauge and a second control valve, which are electrically connected to the controller (7) respectively; The second electrical contact pressure gauge is connected to the inside of the vacuum suction cup (4). The second electrical contact pressure gauge is used to detect the vacuum level inside the vacuum suction cup (4) and generate a detection signal. The second control valve is connected between the lifting beam (1) and the vacuum suction cup (4), and the second control valve is used to control the opening or closing of the lifting beam (1) and the vacuum suction cup (4).

4. The vacuum adsorption lifting device structure for steel plant production according to claim 1, characterized in that: The inside of the lifting beam (1) is provided with several partitions (2), and several through holes (3) are provided on the partitions (2).

5. The vacuum adsorption lifting device structure for steel plant production according to claim 1, characterized in that: The adsorption components are of several kinds, and each of the adsorption components is divided into two groups, with the two groups of adsorption components symmetrically distributed on both sides of the hanging beam (1).

6. The vacuum adsorption lifting device structure for steel plant production according to claim 1, characterized in that: The adsorption assembly also includes a connecting ear (9), a steel cable (10), and a connecting plate (11); The connecting ear (9) is located on the side of the hanging beam (1), and two steel cables (10) are connected to the connecting ear (9). The lower ends of the two steel cables (10) are connected to different ends of the connecting plate (11), and the vacuum suction cup (4) is hinged to the middle of the lower end of the connecting plate (11).

7. The vacuum adsorption lifting device structure for steel plant production according to claim 1, characterized in that: A sealing strip (6) is provided at the edge of the adsorption surface of the vacuum suction cup (4).

8. The vacuum adsorption lifting device structure for steel plant production according to claim 1, characterized in that: The lifting beam (1) is symmetrically provided with connecting parts (8).

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