Electromagnetic Automatic Hanging and Disconnecting Beam for Water Conservancy Projects

Abstract

The present invention provides an electromagnetic automatic hanging and detaching beam for water conservancy projects. The electromagnetic automatic hanging and detaching beam for water conservancy projects includes a beam body, a stress device, an electromagnetic chuck, a battery pack, a control system and a steel gate. The beam body is provided with a plurality of sealed cabins, wherein the control system and the battery pack are respectively installed in the sealed cabins at the upper part of the beam body, and the electromagnetic chucks are respectively installed in the electromagnetic chuck installation cabins at the lower part of the beam body through elastic stress devices. The control system, the battery pack and the electromagnetic chucks are connected by wires according to certain rules; the load and unloading of the steel gate are realized by operating the magnetization and demagnetization of the electromagnetic chucks through the control system, and the gate handling is completed. The invention has a novel structure, few components, low failure rate, especially omits the positioning device and the power supply cable, the hanging and unhooking are more convenient and fast, and the maintenance is simple, and it can ensure reliable operation in a dynamic water environment.

Description

Technical Field

[0001] The present invention relates to the hoisting technology of metal structures in water conservancy projects, and specifically to an electromagnetic automatic hook and release beam for water conservancy projects, which can hoist a gate out of the water from underwater or lower the gate into the water. Background Technique

[0002] During the hoisting process of a gate in a water conservancy project, the upper end of the automatic hook and release beam is connected to a movable pulley, and the lower end is disconnected and connected with the gate underwater to complete the hoisting action.

[0003] At present, the automatic hook and release beam for disconnecting and connecting with the gate underwater is a mechanical automatic hook and release beam. Its characteristic is that when the gate is lowered to the bottom in the water, the mechanical automatic hook and release beam is continuously lowered, resulting in automatic unhooking and completing the whole process of lowering the gate. When the gate gets stuck in the water, the operator mistakenly thinks that the gate has been lowered to the bottom and continues to lower the mechanical automatic hook and release beam, resulting in automatic unhooking. At this time, the gate is completely disconnected from the mechanical automatic hook and release beam, but the gate is still stuck in the gate slot and cannot move up and down, resulting in an operation accident. At this time, it is necessary to rely on divers to work underwater. If the gate is slightly stuck, as long as there is a slight force, the gate will free fall and smash the bottom sill of the gate slot, causing a greater accident and being unable to be repaired.

[0004] In order to avoid the above accidents, later a hydraulic automatic hook and release beam was adopted, that is, the hooking and unhooking are carried out manually. However, due to the large number of components of the hydraulic automatic hook and release beam, the difficulty of precise positioning is relatively large, the failure rate of the power supply cable is relatively high, and it is difficult to ensure safe operation. Summary of the Invention

[0005] The purpose of the present invention is to provide an electromagnetic automatic hook and release beam for water conservancy projects. This hook and release beam uses electromagnetism to magnetize or release the gate to realize the hoisting of the gate, does not require positioning, completely changes the hooking and releasing mode of the hydraulic automatic hook and release beam with horizontal pin insertion, has excellent adaptability, high reliability, and can ensure the suction and hoisting of the gate.

[0006] To achieve the above purpose, the present invention provides an electromagnetic automatic hook and release beam for water conservancy projects, including a hook and release beam body. A lifting lug is provided at the upper part of the beam body. The electromagnetic automatic hook and release beam further includes a control system, an electromagnetic chuck arranged on the contact surface between the beam body and the steel gate, and a battery pack arranged in the beam body; the beam body is divided into an upper control component sealed cabin and a lower electromagnetic chuck installation cabin by a partition. The control component sealed cabin includes a control sealed cabin and a battery sealed cabin. The underwater part of the control system is placed in the control sealed cabin, the battery pack is placed in the battery sealed cabin, the bottom of the electromagnetic chuck installation cabin is open, and the electromagnetic chuck is installed in the electromagnetic chuck installation cabin through an elastic force receiving mechanism, and its magnetic suction surface faces downward and is flush with the bottom surface of the beam body or extends out of the bottom surface of the beam body.

[0007] The elastic force-bearing mechanism includes a spring and a force-bearing steel plate. The force-bearing steel plate is fixed to the top of the electromagnetic chuck, and the force-bearing steel plate is directly connected to the inner wall of the electromagnetic chuck installation cabin through the spring; or a suspension rod is provided on the top of the force-bearing steel plate, and a pressure-bearing steel plate is horizontally welded in the electromagnetic chuck installation cabin. The pressure-bearing steel plate divides the electromagnetic chuck installation cabin into an upper spring buffer cabin and a lower electromagnetic cabin. The electromagnetic chuck and the force-bearing steel plate are placed in the electromagnetic cabin. The upper part of the suspension rod passes through the pressure-bearing steel plate and extends into the spring buffer cabin, and a nut and a washer are fixed to the top thereof. The spring is sleeved on the part of the suspension rod located in the spring buffer cabin, with the lower end fixed to the pressure-bearing steel plate and the upper end fixed to the washer;

[0008] The electromagnetic chuck includes a magnetic closed seal, a fixed magnetic steel, and a variable magnetic steel. The fixed magnetic steel and the variable magnetic steel are distributed in the magnetic closed seal according to the Halbach array. The force-bearing steel plate is fixed to the top of the magnetic closed seal. The magnetic pole magnetism of the variable magnetic steel is changed through an electromagnetic coil or a rotating motor, and the electromagnetic coil or the rotating motor is signal-connected to the control system through a wire, and the control system controls the change of the polarity of the variable magnetic steel to realize the magnetization and demagnetization of the magnetic pole; the battery pack provides power for the control system and the electromagnetic chuck.

[0009] A preferred technical solution of the present invention: The electromagnetic coil or the rotating motor of the electromagnetic chuck is controlled by a change-over switch. The electromagnetic coil or the rotating motor is connected to the change-over switch through a wire. The change-over switch is signal-connected to the control system through a signal wire and is connected to the battery pack through a wire; the control system controls the conversion of the change-over switch, thereby changing the current direction of the electromagnetic coil or controlling the rotation direction of the rotating motor to realize the demagnetization or magnetization of the magnetic pole of the variable magnetic steel.

[0010] A preferred technical solution of the present invention: The battery pack is composed of multiple groups of storage batteries connected in series and parallel, and a charging interface is provided at the end. The control system includes a control system operation module, a water communication device, a floating drum, and an underwater communication device. Both the water communication device and the underwater communication device are composed of a battery module and a communication module, and the water communication device and the underwater communication device are signal-communicated. The underwater communication device is placed in the control seal cabin of the beam body and is connected to the battery pack and the electromagnetic control end of the electromagnetic chuck through a wire; the beam body is connected to the crane movable pulley through a lifting lug, and the crane movable pulley is connected to the wire rope winding device on the opening and closing platform through a wire rope and a hoisting mechanism. The floating drum floats on the water surface and is slidably installed on the wire rope. The water communication device is installed on the floating drum, and the water communication device is signal-communicated with the control system in the operation room or the handheld control system. The control system operation module is installed in the operation room or handheld.

[0011] A preferred technical solution of the present invention: The beam body is welded by structural steel plates, and door groove supports are provided on both sides thereof. The battery seal cabin is located in the middle, and there are two control seal cabins, symmetrically arranged in the battery seal cabin.

[0012] A preferred technical solution of the present invention: Removable sealing covers are provided on the control sealing chamber and the battery sealing chamber on the upper part of the beam body. The sealing covers are bolted to the sealing chambers, and rubber sealing gaskets are provided at the joints. A charging interface hole is provided in the battery sealing chamber, and the charging port hole is used for fixedly connecting a waterproof and sealed charging socket.

[0013] A preferred technical solution of the present invention: The material of the magnetic closed sealing body of the electromagnetic chuck is Q235; the welding material of the contact surface between the steel gate and the electromagnetic chuck is a steel plate of Q235.

[0014] A preferred technical solution of the present invention: The fixed magnetic steel and the variable magnetic steel are installed in the magnetic closed sealing body, and the gap between them is waterproof sealed by insulating sealant.

[0015] The working principle controlled by the present invention: The control system operation module sends instructions to the water communication device and the underwater communication device simultaneously. If the electromagnetic automatic hanging and disconnecting beam is on the water surface, the underwater communication device receives the instruction, and the changeover switch acts to realize the magnetization or demagnetization of the magnetic pole; if the electromagnetic automatic hanging and disconnecting beam is underwater, the water communication device receives the instruction, and then the water communication device transmits it to the underwater communication device, and the changeover switch acts to realize the magnetization or demagnetization of the magnetic pole.

[0016] The beneficial effects of the present invention:

[0017] 1. The innovation point of the electromagnetic automatic hanging and disconnecting beam of the present invention is to use the electromagnetic pole conversion principle to magnetically attract or release the gate to realize the hoisting of the gate, completely changing the hanging and disconnecting mode of the hydraulic automatic hanging and disconnecting beam with horizontal pins.

[0018] 2. The electromagnetic automatic hanging and disconnecting beam of the present invention can complete the hanging and unhooking actions by moving up and down in the gate slot, completely canceling the positioning pins and positioning cylinders of the traditional hydraulic automatic hanging and disconnecting beam or mechanical automatic hanging and disconnecting beam.

[0019] 3. The electromagnetic automatic hanging and disconnecting beam of the present invention adopts a battery power supply mode, canceling the power supply cable, making it highly reliable.

[0020] 4. The present invention adopts a wireless communication method, and the water communication and underwater communication relay and transducer to ensure seamless communication connection.

[0021] 5. The suction cup of the present invention is connected to the beam body bracket by an elastic force mechanism, ensuring that the suction cup can be in uniform contact with the gate and ensuring the stable suction and hoisting of the gate.

[0022] The present invention has fewer components, is extremely easy to install, very simple to maintain, and more convenient to overhaul. The present invention has a wide range of applications, especially suitable for hoisting gates with high lift, rapid water flow, and deep water. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal cavity of the beam body in the first embodiment of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the elastic force receiving device of the electromagnetic chuck in the first embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the second embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the elastic force receiving device of the electromagnetic chuck in the second embodiment of the present invention;

[0028] Figure 6 It is a schematic diagram of the magnetic generation of the variable magnetic steel in the third embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the demagnetization of the variable magnetic steel in the third embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the magnetic generation of the variable magnetic steel in the fourth embodiment of the present invention;

[0031] Figure 9 It is a schematic diagram of the demagnetization of the variable magnetic steel in the fourth embodiment of the present invention;

[0032] Figure 10 It is a schematic diagram of the control principle of the present invention.

[0033] In the figure: 1 - beam body, 1-1 - control seal cabin, 1-2 - battery seal cabin, 1-3 - door groove support, 1-4 - upper hanging ear, 2 - elastic force receiving device, 2-1 - spring, 2-2 - suspension rod, 2-3 - split pin, 2-4 - nut, 2-5 - washer, 3 - electromagnetic chuck, 3-1 - magnetic closed seal body, 3-2 - fixed magnetic steel, 3-3 - changeover switch, 3-4 - insulating sealant, 3-5 - variable magnetic steel, 3-6 - electromagnetic coil, 3-7 - magnetic pole, 4 - battery pack, 5 - control system, 5-1 - control system operation module, 5-2 - water communication device, 5-3 - buoy, 5-4 - steel wire rope, 5-5 - movable pulley, 5-6 - underwater communication device, 6 - steel gate, 7 - electromagnetic chuck installation cabin, 7-1 - electromagnetic cabin, 7-2 - spring buffer cabin, 8 - pressure-bearing steel plate, Specific implementation manners

[0034] The present invention will be further described below in conjunction with the drawings and embodiments. Attached Figures 1 to 10These are all the drawings of the embodiments, which are drawn in a simplified manner and are only used to clearly and concisely illustrate the purpose of the embodiments of the present invention. The technical solutions shown in the drawings below are the specific solutions of the embodiments of the present invention and are not intended to limit the scope of the present invention claimed. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the utility model product is usually placed during use, or the orientation or positional relationships commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connect" should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] An electromagnetic automatic hanging and disconnecting beam for water conservancy projects provided in the embodiment is as Figures 1 to 5As shown in the figure, it includes the hanging and detaching beam body 1. There are lifting lugs 1-4 on the upper part of the beam body 1. The electromagnetic automatic hanging and detaching beam further includes a control system 5, an electromagnetic chuck 3 arranged on the contact surface between the beam body 1 and the steel gate 6, and a battery pack 4 arranged in the beam body 1. The beam body 1 is divided into an upper control component sealed cabin and a lower electromagnetic chuck installation cabin 7 by a partition. The control component sealed cabin includes a control sealed cabin 1-1 and a battery sealed cabin 1-2. The beam body 1 is welded by structural steel plates, and there are gate groove supports 1-3 on both sides. The battery sealed cabin 1-2 is located in the middle, and there are two control sealed cabins 1-1, which are symmetrically arranged in the battery sealed cabin 1-2. Removable sealing covers are provided on the upper control sealed cabin 1-1 and battery sealed cabin 1-2 of the beam body 1. The sealing covers are bolted to the sealed cabins, and rubber sealing gaskets are provided at the joints. A charging interface hole is provided in the battery sealed cabin 1-2, and the charging hole is used to fixedly connect a waterproof and sealed charging socket. The battery pack 4 is composed of multiple groups of storage batteries connected in series and parallel, and a charging interface is provided at the end. The battery pack 4 is placed in the battery sealed cabin 1-2, and the underwater part of the control system 5 is placed in the control sealed cabin 1-1. The bottom of the electromagnetic chuck installation cabin 7 is open. The electromagnetic chuck 3 is installed in the electromagnetic chuck installation cabin 7 through an elastic force mechanism 2, and its magnetic suction surface faces downward and is flush with the bottom surface of the beam body 1 or extends out of the bottom surface of the beam body 1.

[0038] As provided in the embodiment, a kind of electromagnetic automatic hanging and detaching beam for water conservancy projects is as Figure 1 , Figure 5 and Figure 10 shown. The control system 5 includes a control system operation module 5-1, an above-water communication device 5-2, a floating drum 5-3 and an underwater communication device 5-6. Both the above-water communication device 5-2 and the underwater communication device 5-6 are composed of a battery module and a communication module, and the above-water communication device 5-2 and the underwater communication device 5-6 are signal-communicated. The underwater communication device 5-6 is placed in the control sealed cabin 1-1 of the beam body 1 and is connected to the battery pack 4 and the control end of the electromagnetic chuck through wires. The beam body 1 is connected to the crane movable pulley 5-5 through the lifting lug 1-4. The crane movable pulley 5-5 is connected to the wire rope retracting device and the lifting mechanism on the hoisting platform through a wire rope 5-4. The floating drum 5-3 floats on the water surface and is slidably installed on the wire rope 5-4. The above-water communication device 5-2 is installed on the floating drum 5-3, and the above-water communication device 5-2 is signal-communicated with the control system in the operation room or the handheld control system. The control system operation module 5-1 is installed in the operation room or handheld.

[0039] As provided in the embodiment, a kind of electromagnetic automatic hanging and detaching beam for water conservancy projects is as Figures 1 to 10As shown in the figure, the electromagnetic chuck 3 includes a magnetic closed seal 3-1, a fixed magnetic steel 3-2 and a variable magnetic steel 3-5. The fixed magnetic steel 3-2 and the variable magnetic steel 3-5 are distributed in the magnetic closed seal 3-1 according to the Halbach array, and the gap in the middle is waterproof sealed by an insulating sealant 3-4. The polarity of the variable magnetic steel 3-5 is changed by an electromagnetic coil 3-6 or a rotary motor 3-8, and the electromagnetic coil 3-6 or the rotary motor 3-8 is signal-connected to the underwater communication device 5-6 of the control system 5 through a wire, and the control system 5 controls the polarity change of the variable magnetic steel 3-5 to realize the magnetization and demagnetization of the magnetic pole 3-7; the battery pack 4 provides power for the control system 5 and the electromagnetic chuck 3. The electromagnetic coil 3-6 or the rotary motor 3-8 of the electromagnetic chuck 3 is controlled by a change-over switch 3-3. The electromagnetic coil 3-6 or the rotary motor 3-8 is connected to the change-over switch 3-3 through a wire. The change-over switch 3-3 is signal-connected to the underwater communication device 5-6 of the control system 5 through a signal wire and is connected to the battery pack 4 through a wire; the control system 5 controls the conversion of the change-over switch 3-3, thereby changing the current direction of the electromagnetic coil 3-6 or controlling the rotation direction of the rotary motor 3-8 to realize the demagnetization or magnetization of the magnetic pole of the variable magnetic steel. The material of the magnetic closed seal 3-1 of the electromagnetic chuck 3 is Q235; the welding material of the contact surface between the steel gate 6 and the electromagnetic chuck is a steel plate of Q235.

[0040] A kind of electromagnetic automatic hanging and detaching beam for water conservancy projects provided in the first embodiment is as Figures 1 to 3 shown. The elastic force-bearing mechanism 2 includes a spring 2-1 and a force-bearing steel plate 2-6. The force-bearing steel plate 2-6 is fixed on the top of the magnetic closed seal 3-1. A suspension rod 2-2 is provided on the top of the force-bearing steel plate 2-6, and a pressure-bearing steel plate 8 is horizontally welded in the electromagnetic chuck installation cabin 7. The pressure-bearing steel plate 8 divides the electromagnetic chuck installation cabin into an upper spring buffer cabin 7-1 and a lower electromagnetic cabin 7-2. The electromagnetic chuck 3 and the force-bearing steel plate 2-6 are placed in the electromagnetic cabin 7-2. The upper part of the suspension rod 2-2 passes through the pressure-bearing steel plate 8 and extends into the spring buffer cabin 7-1, and a nut 2-4 and a washer 2-5 are fixed at the top thereof. The spring 2-1 is sleeved on the part of the suspension rod 2-2 located in the spring buffer cabin 7-1, with the lower end fixed on the pressure-bearing steel plate 8 and the upper end fixed on the washer 2-5.

[0041] In the first embodiment, the force transmission process after installation in the form of a suspension rod: The weight generated by the magnetization of the magnetic pole to attract the gate is transmitted to the bearing plate of the structure through the suspension rod and spring of the magnetic closed seal, and the bearing plate is transmitted to the hoisting mechanism through the upper lifting ear plate.

[0042] A kind of electromagnetic automatic hanging and detaching beam for water conservancy projects provided in the second embodiment is as Figure 4 and Figure 5As shown in the figure, the elastic force-bearing mechanism 2 includes a spring 2-1 and a force-bearing steel plate 2-6. The force-bearing steel plate 2-6 is fixed to the top of the magnetic-closed seal body 3-1, and its two ends are longer than the magnetic-closed seal body 3-1 and can move within the electromagnetic chuck installation chamber 7. The spring 2-1 is arranged below the parts of the two ends of the force-bearing steel plate 2-6 that extend beyond the magnetic-closed seal body 3-1 and is connected to the inner wall of the electromagnetic chuck installation chamber 7 to form an elastic support frame structure. The force transmission process after installation in the form of a base in the second embodiment: The weight generated by the magnetic attraction of the magnetic poles to close the gate is transmitted to the spring through the force-bearing steel plate of the magnetic-closed seal body, and the spring transmits the force to the structure body.

[0043] The elastic force-bearing mechanisms 2 in both the first embodiment and the second embodiment can enable a flexible contact to be formed between the electromagnetic disk 3 and the steel gate 6, which can ensure that the electromagnetic chuck 3 evenly adsorbs on the top surface of the steel gate 6, avoiding uneven adsorption surfaces caused by reasons such as deformation of the steel gate, thereby reducing the adsorption effect of the chuck.

[0044] A kind of electromagnetic automatic hanging and disconnecting beam for water conservancy projects provided in the third embodiment, as Figure 6 and Figure 7 shown, the variable magnetic steel 3-5 changes the magnetic poles through the electromagnetic coil 3-6. The material of the magnetic-closed body 3-1 is Q235; the material of the fixed magnetic steel 3-2 is rare earth permanent magnet neodymium iron boron; the material of the variable magnetic steel 3-5 can be alnico. The variable magnetic steel 3-5 is wound with an electromagnetic coil 3-6, and the material of the electromagnetic coil is enameled copper wire; the fixed magnetic steel 3-2 and the variable magnetic steel 3-5 are distributed according to the Halbach array. When a current in one direction is applied to the variable magnetic steel 3-5 through the electromagnetic coil 3-6, magnetic poles are generated to produce an external magnetic field, as Figure 6 shown, and an adsorption force can be formed. When a current in the other direction is applied to the variable magnetic steel 3-5 through the electromagnetic coil 3-6, the magnetic poles are demagnetized, as Figure 7 shown, and only an internal magnetic field is generated.

[0045] A kind of electromagnetic automatic hanging and disconnecting beam for water conservancy projects provided in the fourth embodiment, Figure 8 and Figure 9 shown, the variable magnetic steel 3-5 rotates 180 degrees through the rotating motor 3-8 to generate magnetic poles to produce an external magnetic field; the variable magnetic steel 3-5 rotates another 180 degrees through the rotating motor 3-8 to demagnetize the magnetic poles, and only an internal magnetic field is generated.

[0046] In the present invention, several sealed cabins are added, and the control system and the battery are fixedly installed in the sealed cabins. The positioning pins and positioning cylinders are omitted from the beam body, which greatly facilitates hanging and disconnecting.

[0047] The working principles of magnetization and demagnetization of the present invention: Taking the electromagnetic automatic hanging and detaching beam made in the form of a variable magnetic steel structure as an example, there is a fixed magnetic steel installed in the magnetic closed seal body, and the directions of its S pole and N pole have been determined and cannot be changed. The polarities of the S pole and N pole directions of the variable magnetic steel can be changed with the change of the energizing direction of the electromagnetic coil. As Figure 6 shown, when the energizing direction of the electromagnetic coil makes the polarities of the S pole and N pole directions of the variable magnetic steel opposite to those of the fixed magnetic steel, that is, S pole to S pole and N pole to N pole. At this time, the magnetic field formed by the fixed magnetic steel and the variable magnetic steel diffuses outward to seek a steel plate to form a closed magnetic field loop with it, that is, the magnetic pole has a magnetic attraction effect. As Figure 7 shown, when the energizing direction of the electromagnetic coil makes the polarities of the S pole and N pole directions of the variable magnetic steel opposite to those of the fixed magnetic steel, that is, S pole to N pole and N pole to S pole. At this time, the magnetic field between the fixed magnetic steel and the variable magnetic steel has formed a closed magnetic field loop and no longer diffuses outward to seek a steel plate to form a closed magnetic field loop with it, that is, the magnetic pole has a demagnetization effect.

[0048] If taking the electromagnetic automatic hanging and detaching beam made in the form of a rotating magnetic steel structure as an example, there is a fixed magnetic steel installed in the magnetic closed seal body, and the directions of its S pole and N pole have been determined and cannot be changed. The polarities of the S pole and N pole directions of the rotating magnetic steel can be changed with the change of the energizing direction of the rotating motor. As Figure 8 shown, when the energizing direction of the rotating motor makes the polarities of the S pole and N pole directions of the rotating magnetic steel opposite to those of the fixed magnetic steel, that is, S pole to S pole and N pole to N pole. At this time, the magnetic field formed by the fixed magnetic steel and the rotating magnetic steel diffuses outward to seek a steel plate to form a closed magnetic field loop with it, that is, the magnetic pole has a magnetic attraction effect. As Figure 9 shown, when the energizing direction of the rotating motor makes the polarities of the S pole and N pole directions of the rotating magnetic steel opposite to those of the fixed magnetic steel, that is, S pole to N pole and N pole to S pole. At this time, the magnetic field between the fixed magnetic steel and the rotating magnetic steel has formed a closed magnetic field loop and no longer diffuses outward to seek a steel plate to form a closed magnetic field loop with it, that is, the magnetic pole has a demagnetization effect.

[0049] The working process of the invention in the hoisting of the gate in the water conservancy project: In a certain project, it is necessary to hoist the gate from the above-water gate reservoir to the underwater gate slot. The moving pulley 5-5 of the crane is connected to the lifting lug 1-4 on the electromagnetic automatic hanging and disconnecting beam. The operation module 5-1 of the operation control system sends instructions to the above-water and underwater communication devices respectively, making the electromagnetic automatic hanging and disconnecting beam in the demagnetized state. The crane horizontally and vertically moves the electromagnetic automatic hanging and disconnecting beam into the gate reservoir, and places it on the gate. The operation module 5-1 of the operation control system sends instructions to the above-water and underwater communication devices, making the electromagnetic automatic hanging and disconnecting beam in the magnetized state, sucking the gate. The crane lifts the electromagnetic automatic hanging and disconnecting beam together with the gate away from the gate reservoir, horizontally and vertically moves into the gate slot. The crane lowers the electromagnetic automatic hanging and disconnecting beam together with the gate until it is in place at the bottom sill of the gate slot. The operation module of the operation control system sends instructions to the above-water and underwater communication, making the electromagnetic automatic hanging and disconnecting beam in the demagnetized state, disconnecting the gate, and completing the operation of the gate from the above-water gate reservoir to the underwater gate slot. If hoisting the gate from the underwater gate slot to the above-water gate reservoir, the moving pulley 5-5 of the crane is connected to the lifting lug 1-4 on the electromagnetic automatic hanging and disconnecting beam. The operation module 5-1 of the operation control system sends instructions to the above-water and underwater communication devices, making the electromagnetic automatic hanging and disconnecting beam in the demagnetized state. The crane horizontally and vertically moves the electromagnetic automatic hanging and disconnecting beam into the underwater gate slot, and places it on the gate. The operation module of the operation control system sends instructions to the above-water and underwater communication devices, making the electromagnetic automatic hanging and disconnecting beam in the magnetized state, sucking the gate. The crane lifts the electromagnetic automatic hanging and disconnecting beam together with the gate away from the gate slot, horizontally and vertically moves into the above-water gate reservoir. The crane lowers the electromagnetic automatic hanging and disconnecting beam together with the gate until it is in place in the gate reservoir. The operation module of the operation control system sends instructions to the above-water and underwater communication, making the electromagnetic automatic hanging and disconnecting beam in the demagnetized state, disconnecting the gate, and completing the operation of the gate from the underwater gate slot to the above-water gate reservoir.

[0050] Compared with the automatic hanging and disconnecting beam of other pin-passing mechanisms, the upper and lower precise positioning devices are omitted, the pin-passing and pin-removing links are reduced, and the power supply cable signal transmission failure is avoided. It is especially suitable for hoisting deep-water gates with relatively large flow rates.

[0051] As described above, it is only one embodiment of the present utility model, and its description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. An electromagnetic automatic hanging and detaching beam for hydraulic engineering, comprising a hanging and detaching beam body (1), and a lifting lug (1-4) is arranged on the upper part of the beam body (1), and is characterized in that: The electromagnetic automatic hanging and disconnecting beam further includes a control system (5), an electromagnetic chuck (3) disposed on the contact surface between the beam body (1) and the steel gate (6), and a battery pack (4) disposed in the beam body (1); the beam body (1) is divided into an upper control component sealed cabin and a lower electromagnetic chuck installation cabin (7) by a partition board. The control component sealed cabin includes a control sealed cabin (1-1) and a battery sealed cabin (1-2). The underwater part of the control system (5) is placed in the control sealed cabin (1-1), the battery pack (4) is placed in the battery sealed cabin (1-2), the bottom of the electromagnetic chuck installation cabin (7) is open, and the electromagnetic chuck (3) is installed in the electromagnetic chuck installation cabin (7) through an elastic force mechanism (2), and its magnetic suction surface faces downward and is flush with the bottom surface of the beam body (1) or extends out of the bottom surface of the beam body (1). The elastic force mechanism (2) includes a spring (2-1) and a force-bearing steel plate (2-6). The force-bearing steel plate (2-6) is fixed on the top of the electromagnetic chuck (3), and the force-bearing steel plate (2-6) is directly connected to the inner wall of the electromagnetic chuck installation cabin (7) through the spring (2-1); or a suspension rod (2-2) is provided on the top of the force-bearing steel plate (2-6), and a pressure-bearing steel plate (8) is horizontally welded in the electromagnetic chuck installation cabin (7). The pressure-bearing steel plate (8) divides the electromagnetic chuck installation cabin into an upper spring buffer cabin (7-1) and a lower electromagnetic cabin (7-2). The electromagnetic chuck (3) and the force-bearing steel plate (2-6) are placed in the electromagnetic cabin (7-2). The upper part of the suspension rod (2-2) passes through the pressure-bearing steel plate (8) and extends into the spring buffer cabin (7-1), and a nut (2-4) and a washer (2-5) are fixed at its top. The spring (2-1) is sleeved on the part of the suspension rod (2-2) located in the spring buffer cabin (7-1), with the lower end fixed on the pressure-bearing steel plate (8) and the upper end fixed on the washer (2-5). The electromagnetic chuck (3) includes a magnetic closed seal body (3-1), a fixed magnetic steel (3-2), and a variable magnetic steel (3-5). The fixed magnetic steel (3-2) and the variable magnetic steel (3-5) are distributed in the magnetic closed seal body (3-1) according to the Halbach array. The force-bearing steel plate (2-6) is fixed on the top of the magnetic closed seal body (3-1). The variable magnetic steel (3-5) changes the magnetic pole magnetism through an electromagnetic coil (3-6) or a rotating motor (3-8), and the electromagnetic coil (3-6) or the rotating motor (3-8) is signal-connected to the control system (5) through a wire, and the control system (5) controls the change of the polarity of the variable magnetic steel (3-5) to realize the magnetization and demagnetization of the magnetic pole (3-7); the battery pack (4) provides power for the control system (5) and the electromagnetic chuck (3).

2. The electromagnetic automatic hanging and detaching beam for water conservancy projects according to claim 1, characterized in that: The electromagnetic coil (3-6) or the rotary motor (3-8) of the electromagnetic chuck (3) is controlled by a change-over switch (3-3). The electromagnetic coil (3-6) or the rotary motor (3-8) is connected to the change-over switch (3-3) through a wire. The change-over switch (3-3) is signal-connected to the control system (5) through a signal wire and connected to the battery pack (4) through a wire. The control system (5) controls the conversion of the change-over switch (3-3), thereby changing the current direction of the electromagnetic coil (3-6) or controlling the rotation direction of the rotary motor (3-8), and realizing the demagnetization or magnetization of the poles of the variable magnetic steel.

3. A kind of electromagnetic automatic hanging and detaching beam for water conservancy projects according to claim 1 or 2, characterized in that: The battery pack (4) is composed of multiple groups of storage batteries connected in series and parallel, and a charging interface is provided at the end. The control system (5) includes a control system operation module (5-1), an above-water communication device (5-2), a buoy (5-3) and an underwater communication device (5-6). Both the above-water communication device (5-2) and the underwater communication device (5-6) are composed of a battery module and a communication module, and the above-water communication device (5-2) and the underwater communication device (5-6) are signal-communicated. The underwater communication device (5-6) is placed in the control sealed cabin (1-1) of the beam body (1) and is connected to the battery pack (4) and the electromagnetic control end of the electromagnetic chuck (3) through a wire. The beam body (1) is connected to the crane moving pulley (5-5) through a lifting lug (1-4). The crane moving pulley (5-5) is connected to the wire rope retracting device and the lifting mechanism on the opening and closing platform through a wire rope (5-4). The buoy (5-3) floats on the water surface and is slidably installed on the wire rope (5-4). The above-water communication device (5-2) is installed on the buoy (5-3), and the above-water communication device (5-2) is signal-communicated with the control system in the operation room or the handheld control system. The control system operation module (5-1) is installed in the operation room or handheld.

4. A kind of electromagnetic automatic hanging and detaching beam for water conservancy projects according to claim 1 or 2, characterized in that: The beam body (1) is welded by structural steel plates, and door groove supports (1-3) are provided on both sides thereof. The battery sealed cabin (1-2) is located in the middle, and two control sealed cabins (1-1) are provided, symmetrically arranged in the battery sealed cabin (1-2).

5. A kind of electromagnetic automatic hanging and detaching beam for water conservancy projects according to claim 1 or 2, characterized in that: The control sealed cabin (1-1) and the battery sealed cabin (1-2) on the upper part of the beam body (1) are provided with detachable sealed covers. The sealed covers are bolt-connected to the sealed cabins, and rubber gaskets are provided at the connection. A charging interface hole is provided in the battery sealed cabin (1-2), and the charging hole is used for fixedly connecting a waterproof sealed charging socket.

6. A kind of electromagnetic automatic hanging and detaching beam for water conservancy projects according to claim 1 or 2, characterized in that: The material of the magnetic closed seal body (3-1) of the electromagnetic chuck (3) is Q235; the material of the steel plate welded to the contact surface of the steel gate (6) and the electromagnetic chuck is Q235.

7. A kind of electromagnetic automatic hanging and detaching beam for water conservancy projects according to claim 1 or 2, characterized in that: The fixed magnetic steel (3-2) and the variable magnetic steel (3-5) are installed in the magnetic closed seal body (3-1), and the gap between them is waterproof sealed by an insulating sealant (3-4).

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