Electromagnetic hoisting accessory

Abstract

The utility model discloses an electromagnetic hoisting accessory, and relates to the technical field of hoisting accessories, and the electromagnetic hoisting accessory comprises a mounting frame, a suspension arm module and an electromagnetic chuck. The mounting frame is used for being mounted on the loading machine, the electromagnetic chuck is used for generating magnetic attraction force when powered on to grab a magnetic hanging object and releasing the magnetic hanging object after power failure, and the suspension arm module is arranged on the mounting frame, connected with the electromagnetic chuck and used for driving the electromagnetic chuck to move relative to the mounting frame in a second plane. The second plane is perpendicular to the first plane where the mounting frame is located. Therefore, by designing mechanical hoisting equipment special for steel assembly, rapid hoisting of a hoisted object capable of being attracted through magnetism is achieved, manual cooperation with binding hook operation is not needed, the equipment hoisting speed is high, the equipment hoisting efficiency is high, meanwhile, the electromagnetic hoisting accessory is flexible to move on an operation site, and the requirement for the environment of the operation site is not high.

Description

Technical Field

[0001] This application relates to the field of lifting attachments technology, and in particular to an electromagnetic lifting attachment. Background Technology

[0002] In emergency rescue situations, the speed at which steel bridges are constructed is crucial as important temporary access facilities.

[0003] Currently, steel bridges are assembled using cranes in conjunction with manual labor. However, this method has many drawbacks: In terms of efficiency, when cranes lift large steel structural components, manual assistance is needed to bind, precisely position, and install the bridge parts. This process is often time-consuming. Furthermore, due to the numerous and varied shapes of the steel bridge components, manual handling, adjusting small parts, and performing complex connection operations are extremely slow, resulting in low overall assembly efficiency. From a labor consumption perspective, operators need to work on-site for extended periods, enduring heavy physical strain and maintaining constant focus to ensure accuracy and safety, further reducing efficiency. In addition, this assembly method has a low level of mechanization, lacking specialized intelligent machinery for steel bridge assembly, making it difficult to achieve precise, efficient, and continuous assembly operations. This inefficient assembly method also prevents the steel bridge from being quickly deployed in the early stages of rescue efforts, potentially delaying the arrival of rescue teams and supplies in the disaster area and significantly hindering the efficient implementation of disaster relief work. Utility Model Content

[0004] The purpose of this application is to provide an electromagnetic lifting attachment that solves the problems of long construction time and low efficiency of steel bridges.

[0005] To achieve the above objectives, this application provides an electromagnetic lifting attachment, comprising:

[0006] Mounting bracket for mounting on a loader;

[0007] An electromagnetic chuck is used to generate magnetic attraction when energized to grasp magnetic objects and to release them when energized.

[0008] The boom module is mounted on the mounting frame and connected to the electromagnetic chuck. It is used to drive the electromagnetic chuck to move relative to the mounting frame in a second plane, which is perpendicular to the first plane where the mounting frame is located.

[0009] In some embodiments, the electromagnetic chuck includes:

[0010] Mounting base, connected to the end of the boom module furthest from the mounting frame;

[0011] Several electromagnets are movably mounted on a mounting base for adjusting their position relative to the mounting base.

[0012] In some embodiments, the electromagnetic chuck further includes a plurality of connectors and a plurality of elastic members. The connectors pass through the mounting base and are connected to the electromagnet. The elastic members are sleeved on the connectors, and both ends of the elastic members abut against the mounting base and the end of the connector away from the electromagnet.

[0013] In some embodiments, two hanging plates are provided on the side of the mounting base away from the electromagnet;

[0014] The electromagnetic lifting attachment also includes two connecting steel ropes. One end of each connecting steel rope is connected to the end of the boom module away from the mounting frame, and the other end of each connecting steel rope is connected to two lifting plates respectively.

[0015] In some embodiments, the electromagnetic lifting attachment further includes an electrical control module, which is communicatively connected to the electromagnetic chuck and is used to control the power supply to and from the electromagnetic chuck.

[0016] In some embodiments, the boom module includes:

[0017] The boom assembly is rotatably connected to the mounting bracket;

[0018] The lifting cylinder is connected at both ends to the mounting frame and the boom assembly, respectively, and is used to drive the boom assembly to rotate relative to the mounting frame.

[0019] In some embodiments, the boom assembly includes:

[0020] Crane boom;

[0021] The telescopic boom is movably connected to the lifting boom and is used for telescopic movement relative to the lifting boom. The direction of movement of the telescopic boom is perpendicular to the rotation axis of the lifting boom.

[0022] The telescopic cylinder has its two ends connected to the lifting arm and the telescopic arm, respectively, and is used to drive the telescopic arm to extend and retract relative to the lifting arm.

[0023] In some embodiments, the boom module further includes a hydraulic control module, which is communicatively connected to the telescopic cylinder and the lifting cylinder to control their movement.

[0024] Compared to the aforementioned background technology, the electromagnetic lifting attachment provided in this application includes a mounting frame, a boom module, and an electromagnetic chuck. The mounting frame is used to mount on a loader. The electromagnetic chuck generates magnetic attraction when energized to grip magnetic objects and releases them when de-energized. The boom module is mounted on the mounting frame and connected to the electromagnetic chuck. The boom module drives the electromagnetic chuck to move relative to the mounting frame within a second plane, which is perpendicular to the first plane containing the mounting frame.

[0025] During operation, first, operate the electromagnetic chuck to bring it close to the surface of the object being lifted. Then, control the electromagnetic chuck to generate magnetic force to firmly hold the object in place, completing the object's adsorption. Afterward, control the boom module to lift the object off the ground, completing the lifting. Once the object is off the ground, drive the loader to transport the object to the target location, completing the object's transport. After the object is transported to the target location and installed, control the electromagnetic chuck to de-energize, causing the electromagnetic chuck's magnetic force to disappear, completing the object's release.

[0026] The advantages of this electromagnetic lifting attachment include: the attraction and release of the object being lifted are achieved by switching the electromagnetic chuck on and off, and the lifting of the object is completed by the boom module. In this way, by designing a mechanized lifting equipment specifically for steel assemblies, it is possible to quickly lift objects that can be magnetically attracted without the need for manual assistance in binding hooks. The equipment has a fast lifting speed and high efficiency. At the same time, the electromagnetic lifting attachment is flexible in movement at the work site and has low requirements for the work site environment. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the electromagnetic lifting attachment in this application;

[0029] Figure 2 for Figure 1 The diagram shows the structure of the electromagnetic chuck in the electromagnetic lifting attachment.

[0030] Figure 3 for Figure 1 The diagram shows the structure of the boom assembly in the electromagnetic lifting attachment.

[0031] Figure 4 This is a schematic diagram of the overall structure of the loader in this application;

[0032] Figure 5 This is a schematic diagram of the loader being lifted to its highest position in this application;

[0033] Figure 6 This is a schematic diagram of the loader being lifted to its lowest position in this application.

[0034] in:

[0035] 10-Mounting rack;

[0036] 20-Boom module, 21-Boom assembly, 211-Lifting boom, 212-Telescopic boom, 213-Telescopic cylinder, 22-Lifting cylinder;

[0037] 30-Electromagnetic chuck, 31-Mounting base, 32-Electromagnet, 33-Connector, 34-Elastic element, 35-Hanging plate;

[0038] 40 - Connecting steel rope;

[0039] 50 - Car body;

[0040] 60 - Docking section;

[0041] 70-Tail rack;

[0042] 80-Boom assembly, 81-Boom body, 811-Straight rod, 812-Bent rod, 82-First boom cylinder, 83-Second boom cylinder. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.

[0046] Please see Figures 1 to 3 The electromagnetic lifting attachment provided in this application includes a mounting frame 10, a boom module 20, and an electromagnetic chuck 30.

[0047] Mounting bracket 10 is used for mounting on a loader. Mounting bracket 10 is provided with mounting slots. The loader body 50 is provided with quick-installation connectors. The quick-installation connectors are connected to the mounting slots to enable the electromagnetic lifting attachments to be quickly installed on the loader.

[0048] The electromagnetic chuck 30 is used to generate magnetic attraction when energized to grasp magnetic objects and to release them when the power is off. For example, the electromagnetic chuck 30 may contain a coil. When a direct current is applied, the coil generates a magnetic field, which attracts the magnetic object (such as steel) and firmly attaches it to the surface of the chuck. When the power is cut off, the magnetic field disappears, the magnetic object loses its attraction, and is thus released.

[0049] The boom module 20 is mounted on the mounting frame 10 and connected to the electromagnetic chuck 30. The boom module 20 is used to drive the electromagnetic chuck 30 to move relative to the mounting frame 10 in a second plane, which is perpendicular to the first plane on which the mounting frame 10 is located. The movement of the boom module 20 relative to the mounting frame 10 in the second plane perpendicular to the first plane includes, but is not limited to, the rotation and extension / retraction movement of the boom assembly 21 of the boom module 20 relative to the mounting frame 10 in the second plane.

[0050] During operation, first, operate the electromagnetic chuck 30 to bring it close to the surface of the object being lifted. Then, control the electromagnetic chuck 30 to generate magnetic force to firmly hold the object being lifted, completing the adsorption of the object. After that, control the boom module 20 to lift the object off the ground, completing the lifting. After the object is off the ground, drive the loader to transport the object to the target location, completing the handling of the object. After the object is transported to the target location and installed, control the electromagnetic chuck 30 to de-energize, the magnetic force of the electromagnetic chuck 30 disappears, and the object is released.

[0051] The advantages of this electromagnetic lifting attachment mainly include: the adsorption and release of the object being lifted are achieved by switching the electromagnetic chuck 30 on and off, and the lifting of the object is completed by the boom module 20. In this way, by designing a mechanized lifting equipment specifically for steel assembly, it is possible to quickly lift objects that can be magnetically adsorbed without the need for manual assistance in binding hook operations. The equipment has a fast lifting speed and high efficiency. At the same time, the electromagnetic lifting attachment is flexible in movement at the work site and has low requirements for the work site environment.

[0052] In some embodiments, the electromagnetic chuck 30 includes a mounting base 31 and a plurality of electromagnets 32. The mounting base 31 is connected to the end of the boom module 20 away from the mounting frame 10, and the electromagnets 32 are arranged at equal intervals on the bottom of the mounting base 31. The electromagnets 32 are movably mounted on the mounting base 31, which facilitates the adjustment of the position of the electromagnets 32 relative to the mounting base 31.

[0053] It can be seen that each electromagnet 32 ​​is arranged at equal intervals along the length of the mounting base 31 at the bottom of the mounting base 31, while the electromagnet 32 ​​is movably disposed on the mounting base 31 along the height / thickness direction of the mounting base 31.

[0054] In some embodiments, the electromagnetic chuck 30 further includes a plurality of connectors 33 and a plurality of elastic members 34. The connectors 33 pass through the mounting base 31 and are connected to the electromagnet 32. The elastic members 34 are sleeved on the connectors 33, and the two ends of the elastic members 34 abut against the mounting base 31 and the end of the connectors 33 away from the electromagnet 32.

[0055] In this embodiment, the connector 33 can be a bolt, the elastic element 34 can be a compression spring, and the mounting base 31 is provided with a through hole for the bolt to pass through. During installation, the connector 33 passes through the corresponding through hole on the mounting base 31 and is threadedly connected to the corresponding electromagnet 32. The connector 33 can move up and down relative to the mounting base 31. At the same time, the elastic element 34 is sleeved on the connector 33, and the two ends of the elastic element 34 abut against the mounting base 31 and the head of the bolt.

[0056] When the electromagnet 32 ​​approaches the object being lifted, the elastic element 34 can buffer and automatically adjust the position of the electromagnet 32 ​​so that it can better fit the surface of the object being lifted. If the surface of the object being lifted is uneven, the elastic element 34 will automatically expand and contract according to the pressure at the contact point, so that the electromagnet 32 ​​can fully fit with each contact point of the object being lifted.

[0057] In this way, each electromagnet 32 ​​can more fully adhere to and contact the uneven surface of the object being lifted. The distance between the electromagnet 32 ​​installed on the electromagnetic chuck 30 and the mounting base 31 can be adjusted by the elastic element 34, so that the electromagnet 32 ​​can fully adhere to and fit the uneven object being lifted. This design can increase the adsorption area and reduce the problem of uneven adsorption force caused by uneven surface, thereby making the electromagnetic lifting more stable.

[0058] In addition, after the hoisted object is released, each electromagnet 32 ​​can be reset in time under the action of the elastic element 34, so as to facilitate the next hoisting.

[0059] In some embodiments, the mounting base 31 is provided with two lifting plates 35 on the side away from the electromagnet 32; correspondingly, the electromagnetic lifting attachment also includes two connecting steel ropes 40, one end (upper end) of the two connecting steel ropes 40 is connected to the end of the boom module 20 away from the mounting frame 10, and the other end (lower end) of the two connecting steel ropes 40 is connected to the two lifting plates 35 respectively.

[0060] Specifically, each of the connecting steel ropes 40 has a connecting seat at both ends. The connecting seat at one end of the connecting steel rope 40 is connected to the boom module 20 via a first pin, and the connecting seat at the other end of the connecting steel rope 40 is connected to the corresponding lifting plate 35 via a second pin. The connecting steel rope 40 is a wire rope, which is a non-rigid connector, allowing the lifting attachments to be manually adjusted during installation operations to ensure precise alignment and installation of the load.

[0061] In some embodiments, the electromagnetic lifting attachment further includes an electrical control module, which is communicatively connected to the electromagnetic chuck 30 and is used to control the power supply to and from the electromagnetic chuck 30.

[0062] In this embodiment, the electromagnet 32 ​​installed on the electromagnetic chuck 30 is powered by a 24V DC power supply. The maximum theoretical magnetic force of a single electromagnet 32 ​​is 8000N, and the maximum theoretical magnetic force of the electromagnetic chuck 30 is 40000N. It can directly use a sliding power supply. The control switch is designed in the cab, and the operator can turn the electromagnetic chuck 30 on and off from the cab, thereby realizing the rapid gripping and release of magnetic objects.

[0063] In some embodiments, the boom module 20 includes a boom assembly 21 and a lifting cylinder 22. The boom assembly 21 is rotatably connected to the mounting frame 10, and the two ends of the lifting cylinder 22 are respectively connected to the mounting frame 10 and the boom assembly 21. The lifting cylinder 22 is used to drive the boom assembly 21 to rotate relative to the mounting frame 10.

[0064] In this way, under the action of the lifting cylinder 22, the boom assembly 21 can rotate relative to the mounting frame 10, thereby realizing the upward lifting and downward lowering of the boom assembly 21.

[0065] In some embodiments, the boom assembly 21 includes a lifting boom 211, a telescopic boom 212, and a telescopic cylinder 213. One end of the lifting boom 211 is rotatably connected to the top of the mounting frame 10 via a pivot. The telescopic boom 212 is movably connected to the lifting boom 211 and is used for telescopic movement relative to the lifting boom 211. The direction of movement of the telescopic boom 212 is perpendicular to the rotation axis of the lifting boom 211. Both ends of the telescopic cylinder 213 are connected to the lifting boom 211 and the telescopic boom 212, respectively, and the telescopic cylinder 213 is used to drive the telescopic boom 212 to telescopically move relative to the lifting boom 211.

[0066] During installation, the telescopic boom 212 slides into the hole of the lifting boom 211, the steel rope pin for installing the connecting steel rope 40 is inserted into the steel rope mounting hole of the telescopic boom 212, and the pin of the telescopic cylinder 213 is inserted into the cylinder mounting hole of the lifting boom 211.

[0067] In this way, by setting up the boom 211, telescopic boom 212 and telescopic cylinder 213, the telescopic cylinder 213 can drive the telescopic boom 212 to extend outward, thereby cooperating with the lifting cylinder 22 to rotate the lifting angle, so as to reach the maximum lifting posture. With the boom of the skid steer loader raised in conjunction with the maximum lifting posture, the maximum lifting height of the electromagnetic chuck 30 can exceed 5 meters, so that the lifting height of the lifting attachment can reach the required assembly height.

[0068] In some embodiments, the boom module 20 further includes a hydraulic control module, which is communicatively connected to the telescopic cylinder 213 and the lifting cylinder 22 to control the movement of the telescopic cylinder 213 and the lifting cylinder 22.

[0069] It should be noted that the electromagnetic lifting attachment is designed with a circuit control system and a hydraulic control system. The circuit control system includes an electrical control module, and the hydraulic control system includes a hydraulic control module. In addition, a control panel is provided, which is designed in the cab. The electrical control module controls the on and off of the electromagnet 32, and the hydraulic control module controls the movement of the lifting cylinder 22 and the telescopic cylinder 213.

[0070] Please refer to the following: Figures 4 to 6 The loader provided in this application includes the electromagnetic lifting attachment described in the above specific embodiments. The loader also includes a vehicle body 50, which is provided with a docking part 60. The docking part 60 includes a quick-installation connector, and the mounting frame 10 is provided with a mounting slot. The quick-installation connector docks with the mounting slot so that the electromagnetic lifting attachment is installed on the vehicle body 50.

[0071] During installation, the electromagnetic lifting attachment is placed upright on a flat ground. The side of the mounting frame 10 with the mounting slot faces the skid steer loader. The operator drives the skid steer loader forward, directly facing the lifting attachment. After approaching the attachment, the operator inserts the quick-connect fitting of the skid steer loader into the mounting slot of the mounting frame 10 and then locks the fitting in place. This completes the installation of the electromagnetic lifting attachment.

[0072] In some embodiments, the loader further includes a tailstock 70 and a boom assembly 80. The tailstock 70 is located at the rear of the vehicle body 50, and the boom assembly 80 is located between the docking portion 60 and the tailstock 70. The boom assembly 80 includes a boom body 81, a first boom cylinder 82, and a second boom cylinder 83.

[0073] The boom body 81 includes a straight rod 811 and a bent rod 812 fixedly connected to the straight rod 811. The end of the straight rod 811 away from the bent rod 812 is hinged to one end of the tailstock 70, and the end of the bent rod 812 away from the straight rod 811 is hinged to one end of the docking part 60. The two ends of the first boom cylinder 82 are respectively hinged to the other ends of the bent rod 812 and the docking part 60. The two ends of the second boom cylinder 83 are respectively hinged to the other ends of the bent rod 812 and the tailstock 70.

[0074] As can be seen, the first boom cylinder 82 and the second boom cylinder 83 are respectively connected between the bent rod 812 and the docking part 60, and between the bent rod 812 and the tailstock 70. Through the coordinated work of the two boom cylinders, during the lifting or lowering process, by adjusting the extension and retraction speed and stroke of the two boom cylinders, a smoother movement can be achieved, reducing impact and vibration. Through the precise control of the hydraulic system, the two boom cylinders can be independently adjusted according to the actual working conditions, making the movement of the boom assembly 80 more flexible and precise.

[0075] This design, through the multi-point articulation of the boom assembly and the telescopic coordination of the cylinders, allows the boom to achieve a large extension and folding angle, significantly expanding the loader's operating range. It can handle both high-altitude material handling and low-altitude excavation. This design enables the loader to better adapt to complex working environments; the boom can flexibly adjust its posture to ensure that electromagnetic lifting attachments can smoothly reach the target position, improving lifting efficiency.

[0076] In summary, when a loader equipped with electromagnetic lifting attachments performs lifting operations, the following procedures should be followed:

[0077] Adhesion of the hoisted object: Operate the skid steer loader so that its electromagnetic chuck 30 is above the center of gravity of the hoisted object. Operate the operating handles of the lifting cylinder 22 and the telescopic cylinder 213 to bring the electromagnetic chuck 30 close to the surface of the hoisted object. Turn on the control switch of the electromagnet 32. The electromagnet 32 ​​is energized and generates magnetic force to firmly attract the hoisted object, thus completing the adhesion of the hoisted object.

[0078] Lifting of the hoisted object: After the hoisted object is attracted, control the operating handles of the lifting cylinder 22 and the telescopic cylinder 213 to lift the hoisted object off the ground and complete the lifting.

[0079] Lifting and handling: After the electromagnetic lifting attachment picks up the object and lifts it off the ground, the skid steer loader is driven to transport the object to the target location, completing the lifting and handling.

[0080] Release of suspended object: After the suspended object is transported to the target location and installed, turn off the control switch of electromagnet 32. Electromagnet 32 ​​is de-energized, the magnetic force of electromagnetic chuck 30 disappears, and the release is completed.

[0081] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0082] The electromagnetic lifting attachments provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. An electromagnetic lifting attachment, characterized in that, include: Mounting bracket for mounting on a loader; An electromagnetic chuck is used to generate magnetic attraction when energized to grasp magnetic objects and to release them when energized. A boom module is mounted on the mounting frame and connected to the electromagnetic chuck, used to drive the electromagnetic chuck to move relative to the mounting frame in a second plane, the second plane being perpendicular to the first plane where the mounting frame is located.

2. The electromagnetic lifting attachment as described in claim 1, characterized in that, The electromagnetic chuck includes: Mounting base, connected to the end of the boom module away from the mounting frame; Several electromagnets are movably mounted on the mounting base for adjusting their position relative to the mounting base.

3. The electromagnetic lifting attachment as described in claim 2, characterized in that, The electromagnetic chuck also includes several connectors and several elastic members. The connectors pass through the mounting base and are connected to the electromagnet. The elastic members are sleeved on the connectors, and both ends of the elastic members abut against the mounting base and the end of the connector away from the electromagnet.

4. The electromagnetic lifting attachment as described in claim 2, characterized in that, The mounting base has two hanging plates on the side opposite to the electromagnet; The electromagnetic lifting attachment also includes two connecting steel ropes. One end of each connecting steel rope is connected to the end of the boom module away from the mounting frame, and the other end of each connecting steel rope is connected to one of the two lifting plates.

5. The electromagnetic lifting attachment as described in claim 1, characterized in that, The electromagnetic lifting attachment also includes an electrical control module, which is communicatively connected to the electromagnetic chuck and is used to control the power supply to and from the electromagnetic chuck.

6. The electromagnetic lifting attachment as described in claim 1, characterized in that, The boom module includes: A boom assembly is rotatably connected to the mounting frame; The lifting cylinder has its two ends connected to the mounting frame and the boom assembly, respectively, and is used to drive the boom assembly to rotate relative to the mounting frame.

7. The electromagnetic lifting attachment as described in claim 6, characterized in that, The boom assembly includes: Crane boom; A telescopic boom is movably connected to the lifting boom for telescopic movement relative to the lifting boom, wherein the direction of movement of the telescopic boom is perpendicular to the rotation axis of the lifting boom. A telescopic hydraulic cylinder, with its two ends connected to the lifting arm and the telescopic arm respectively, is used to drive the telescopic arm to extend and retract relative to the lifting arm.

8. The electromagnetic lifting attachment as described in claim 7, characterized in that, The boom module also includes a hydraulic control module, which is communicatively connected to the telescopic cylinder and the lifting cylinder to control their movement.

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