An electric permanent magnetic hanger

Abstract

The present invention relates to an electro-permanent magnet hoist, comprising a frame main beam, a plurality of frame cross beams arranged below the frame main beam in an array along the long side direction of the frame main beam, and a cluster matrix array of electro-permanent magnets arranged below the frame cross beam; a plurality of flexible chains are arranged between the frame main beam and the frame cross beam, and the bending directions between adjacent flexible chains form a spatial angle; the frame main beam and the flexible chains are connected by a first buffer device, and the frame main beam and the frame cross beam are connected by the first buffer device and the flexible chain; the frame cross beam and the electro-permanent magnet are connected by a second buffer device, wherein the swing directions between the adjacent roller chains are not parallel to each other. The present invention has the advantages of stable adsorption, non-collision between electro-permanent magnets, full coverage of the magnetic field on the working surface of the hoist to prevent leakage, and easy assembly and transportation. It is particularly suitable for whole-plate unloading and single-sheet partitioned unloading on an automated unloading line.

Description

Technical Field

[0001] The present invention relates to a sling, in particular to an electric permanent magnet sling. Background Art

[0002] Electromagnetic lifters are common equipment for industrial lifting. They generally consist of a sling, a beam, and an electromagnet mounted beneath the beam. More advanced electromagnetic lifters incorporate a shock-absorbing structure between the magnet and the beam. While this reduces damage to the magnet, it also reduces its air gap resistance. If multiple magnets are installed under a beam, there's also the risk of collision, impacting the lifter's service life.

[0003] Ordinary lifting structures do not have such high requirements for shaking during lifting. However, a new anti-leakage suction structure has the permanent magnet parts between adjacent permanent magnet groups exposed outside the protective shell, and the gap between adjacent permanent magnets is smaller than that of the existing traditional permanent magnet lifting structure. This requires that the shaking of the permanent magnets is small, but the lifting structure in the existing technology cannot meet this requirement. Summary of the Invention

[0004] The purpose of the present invention is to improve and innovate the shortcomings and problems existing in the background technology, and to provide an electric permanent magnet spreader with stable adsorption, non-collision between electric permanent magnets, full coverage of the magnetic field on the working surface of the spreader to prevent leakage, and easy assembly and transportation. The spreader is particularly suitable for whole-plate unloading and single-sheet partitioned unloading on automated unloading lines.

[0005] The technical solution of the present invention is to construct an electro-permanent magnetic hanger, which is characterized in that it includes a frame main beam, a plurality of frame cross beams arranged below the frame main beam and arrayed along the long side direction of the frame main beam, and a cluster matrix array type electro-permanent magnet arranged below the frame cross beam; a plurality of flexible chains are arranged between the frame main beam and the frame cross beam, and the bending directions between adjacent flexible chains form a spatial angle; the frame main beam and the flexible chain are connected by a first buffer device, and the frame main beam and the frame cross beam are connected by the first buffer device and the flexible chain; the frame cross beam and the electro-permanent magnet are connected by a second buffer device.

[0006] In one embodiment, the frame main beam includes multiple parallel main beams, and the multiple main beams are fixedly connected by short beams; a connecting plate is provided on the upper part of the frame main beam, and the connecting plate provides a connection interface suitable for lifting equipment; a mounting beam is provided on the lower part of the frame main beam, and a first through hole is provided on the mounting beam.

[0007] In one embodiment, the frame crossbeam includes a plurality of crossbeams, the crossbeams are fixed into a frame structure by short crossbeams, and the crossbeams are provided with second through holes.

[0008] In one embodiment, the first buffer device is installed on the mounting beam, including a hanging shaft and an elastic member, a step is set on the upper end of the hanging shaft to form a "T" shape as a whole, the elastic member is set on the upper surface of the mounting beam, the hanging shaft passes through the elastic member and the first through hole set on the mounting beam to form the first buffer device, the step on the upper end of the hanging shaft defines the upper end of the elastic member, the lower end of the hanging shaft is hinged to the top end of the flexible chain, and the end of the flexible chain is hinged to the upper surface of the frame beam, and the two hinge axes are parallel and in the same vertical plane.

[0009] In one embodiment, the second buffer device includes a pull rod, a first compression spring and a second compression spring, the lower end of the pull rod is fixed to the upper surface of the electropermanent magnet, the second compression spring is sleeved on the lower part of the pull rod, the pull rod passes through the second through hole on the beam, the first compression spring is sleeved on the upper part of the pull rod, the lower end of the first compression spring is in contact with the upper surface of the beam, the upper end of the pull rod is provided with a thread, the upper end of the first compression spring is provided with a washer, the washer is sleeved on the pull rod, and a nut is provided at the thread of the pull rod, and the nut adjusts the preload of the first compression spring and the second compression spring.

[0010] In one embodiment, a plurality of electropermanent magnets are arranged in an equidistant array along the long side direction under the same frame crossbeam. The electropermanent magnets are connected to the frame crossbeam through the second buffer device to form an electropermanent magnet array group. The flexible chains connecting the electropermanent magnet array group and the frame main beam are arranged symmetrically in even numbers, with at least 4 flexible chains. The flexible chains only bend or slide within the plane without distortion, and the bending directions of adjacent flexible chains are perpendicular to each other. The flexible chains include roller chains.

[0011] In one embodiment, at least two of the electropermanent magnet array groups are provided with a material loading detection assembly for detecting the material adsorption status of the electropermanent magnet array group during operation. The electropermanent magnet includes a top plate and a plurality of electropermanent magnet units, the lower end of the pull rod is fixed to the top plate, and the plurality of electropermanent magnet units form a rectangular array, and the magnetic polarity of the working surfaces of any adjacent electropermanent magnet units is different, and the working surfaces are in the same plane. Any single electropermanent magnet or any combination of electropermanent magnets in the electropermanent magnet array group can be individually controlled. When the electropermanent magnet array group with this structure is in operation, the entire magnetic adsorption area is fully covered by the magnetic field, and selective material discharge can be achieved.

[0012] In one embodiment, an electropermanent magnet array group consisting of several linear arrays along the axial direction of the frame main beam below the frame main beam and an electropermanent magnet array group arranged in the several linear arrays constitute a cluster matrix array type electropermanent magnet, and the working surfaces of any adjacent electropermanent magnet units in the adjacent electropermanent magnets of the cluster matrix array type electropermanent magnet have different magnetic poles, and the working surfaces are in the same plane.

[0013] In one embodiment, the loading detection component is a photoelectric sensor and a reflector, and a matching photoelectric sensor and reflector are arranged in the same electropermanent magnet array group.

[0014] In one embodiment, a junction box is provided on the main beam of the frame, and cables of all electropermanent magnets and photoelectric sensors are connected to the junction box and connected to the control system through the junction box.

[0015] Advantages and beneficial effects of the present invention:

[0016] The present invention prevents the swinging between the main bodies through the matching first compression spring and second compression spring structure, adapts to the new anti-leakage suction structure, makes the swinging gap smaller, can protect the springs (first compression spring and second compression spring), adjust assembly errors, and reduce the influence of the magnet's own anti-air gap ability on the adsorption stability.

[0017] The present invention increases the amount of up and down adjustment by arranging flexible chains, and the arrangement directions of adjacent flexible chains are staggered to prevent the magnets from swinging in the horizontal direction, thereby solving the problem of collision between the bodies.

[0018] The present invention realizes detection of the working state and lifting position of each magnet of the main body when the main body is working by arranging a photoelectric sensor.

[0019] In addition, the split structure of the present invention, that is, the double-layer beam structure (frame main beam, frame cross beam and flexible chain) is provided, which is convenient for assembly and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0021] Figure 2 It is a front view of the embodiment.

[0022] Figure 3 yes Figure 2 Top view of .

[0023] Figure 4 yes Figure 2 Right view of .

[0024] Figure 5 yes Figure 1 Enlarged view of part A.

[0025] Figure 6 This is a schematic diagram comparing the two usage states of the plane bending flexible chain.

[0026] Figure 7 This is a schematic diagram comparing the two usage states of the plane sliding flexible chain.

[0027] In the figure: 1-frame main beam, 2-frame cross beam, 3-electropermanent magnet, 4-main beam, 5-short beam, 6-cross beam, 8-short cross beam, 9-flexible chain, 10-top plate, 11-electropermanent magnet unit, 12-hanging shaft, 13-elastic member, 15-mounting beam, 16-pull rod, 17-first compression spring, 18-connecting plate, 19-junction box, 20-photoelectric sensor, 21-reflective plate, 23-washer, 24-second compression spring. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive disclosure of the present invention.

[0029] It should be noted that when an element is considered to be "disposed on" another element, it may be directly disposed on or connected to the other element or there may be a central element at the same time. The terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used in the specification are only for describing specific implementation purposes and are not intended to limit the present invention.

[0031] Example 1

[0032] like Figure 1-5 As shown, an electro-permanent magnetic hoist comprises a frame main beam 1, a plurality of frame cross beams 2 arranged below the frame main beam 1 and arrayed along the long side direction of the frame main beam 1, and a cluster matrix array type electro-permanent magnet 3 arranged below the frame cross beam 2; a plurality of flexible chains 9 are arranged between the frame main beam 1 and the frame cross beam 2, and the bending directions between adjacent flexible chains 9 form a spatial angle; the frame main beam 1 and the flexible chain 9 are connected by a first buffer device, and the frame main beam 1 and the frame cross beam 2 are connected by the first buffer device and the flexible chain 9; the frame cross beam 2 and the electro-permanent magnet 3 are connected by a second buffer device.

[0033] Specifically, the frame main beam 1 includes multiple parallel main beams 4, and the multiple main beams 4 are fixedly connected by short beams 5; a connecting plate 18 is provided on the upper part of the frame main beam 1, and the connecting plate 18 provides a connection interface suitable for lifting equipment; a mounting beam 15 is provided on the lower part of the frame main beam 1, and a first through hole is provided on the mounting beam 15.

[0034] The frame crossbeam 2 includes a plurality of crossbeams 6 , which are fixed into a frame structure by short crossbeams 8 , and a second through hole is provided on the crossbeam 6 .

[0035] The first buffer device is installed on the mounting beam 15, and includes a hanging shaft 12 and an elastic member 13 (such as a spring). A step is set at the upper end of the hanging shaft 12 to form a "T" shape as a whole. The elastic member 13 is set on the upper surface of the mounting beam 15. The hanging shaft 12 passes through the elastic member 13 and the first through hole set on the mounting beam 15 to form a first buffer device. The step at the upper end of the hanging shaft 12 defines the upper end of the elastic member 13. The lower end of the hanging shaft 12 is hinged to the top end of the flexible chain 9, and the end of the flexible chain 9 is hinged to the upper surface of the frame beam 2. The two hinge axes are parallel and in the same vertical plane.

[0036] The second buffer device includes a pull rod 16, a first compression spring 17 and a second compression spring 24. The lower end of the pull rod 16 is fixed to the upper surface of the electropermanent magnet 3, and the second compression spring 24 is sleeved on the lower part of the pull rod 16. The pull rod 16 passes through the second through hole on the beam 6. The first compression spring 17 is sleeved on the upper part of the pull rod 16. The lower end of the first compression spring 17 is in contact with the upper surface of the beam 6, and the upper end of the second compression spring 24 is in contact with the lower surface of the beam 6. A thread is set on the upper end of the pull rod 16, and a washer 23 is set on the upper end of the first compression spring 17. The washer 23 is sleeved on the pull rod 16, and a nut is set at the thread of the pull rod 16. The nut adjusts the preload of the first compression spring 17 and the second compression spring 24.

[0037] A plurality of electropermanent magnets 3 are arranged in an equidistant array along the long side direction under the same frame crossbeam 2. The electropermanent magnets 3 are connected to the frame crossbeam 2 through the second buffer device to form an electropermanent magnet array group. The electropermanent magnet array group is connected to the frame main beam 1 by four symmetrically arranged flexible chains 9. The flexible chains 9 only bend or slide within the plane without distortion, and the bending directions of adjacent flexible chains 9 are perpendicular to each other. The flexible chains 9 can be roller chains.

[0038] At least two of the electropermanent magnet array groups are equipped with a material loading detection component for detecting the material adsorption status of the electropermanent magnet array group during operation. The electropermanent magnet 3 includes a top plate 10 and a plurality of electropermanent magnet units 11. The lower end of the pull rod 16 is fixed to the top plate 10. The plurality of electropermanent magnet units 11 form a rectangular array, and the working surfaces of any adjacent electropermanent magnet units 11 have different magnetic polarities and are located in the same plane. Any single electropermanent magnet or any combination of electropermanent magnets in the electropermanent magnet array group can be individually controlled. When the electropermanent magnet array group with this structure is in operation, the magnetic field of the entire magnetic adsorption area is fully covered, and selective material discharge can be achieved.

[0039] The electropermanent magnet array groups of several linear arrays along the axial direction of the frame main beam 1 below the frame main beam 1 and the electropermanent magnet array groups arranged in the several linear arrays constitute a cluster matrix array type electropermanent magnet, and the working surface polarities of any adjacent electropermanent magnet units in the adjacent electropermanent magnets of the cluster matrix array type electropermanent magnet are different, and the working surfaces are in the same plane.

[0040] The feeding detection component is a photoelectric sensor 20 and a reflector 21 , and a matching photoelectric sensor 20 and reflector 21 are arranged in the same electropermanent magnet array group.

[0041] A junction box 19 is provided on the frame main beam 1 , and cables of all the electropermanent magnets 3 and the photoelectric sensors 20 are connected to the junction box 19 and connected to the control system through the junction box 19 .

[0042] The flexible chain can be a plane bending flexible chain, and adjacent sections can rotate coaxially, such as Figure 6 As shown; it can also be a plane sliding flexible chain, with adjacent sections slidingly connected, such as Figure 7 shown.

[0043] The technical features of the above-described embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as no contradiction exists between these combinations of technical features, they should be considered to be within the scope of this specification. Obviously, the number of electropermanent magnet groups and electropermanent magnets can be adjusted according to actual needs and is not limited to the number described in the embodiments.

[0044] The present invention prevents the swinging between the main bodies through the matching first compression spring and second compression spring structure, adapts to the new anti-leakage suction structure, makes the swinging gap smaller, can protect the springs (first compression spring and second compression spring), adjust assembly errors, and reduce the influence of the magnet's own anti-air gap ability on the adsorption stability.

[0045] The present invention provides a larger up and down adjustment amount by arranging a roller chain (flexible chain), and the adjacent roller chains are arranged in a staggered direction to prevent the magnet from swinging in the horizontal direction, thereby solving the problem of collision between the bodies.

[0046] The present invention employs photoelectric sensors to detect the operating status of each magnet in the main body and the lifting position during operation. The associated detection circuits and electromagnetic control circuits are conventional in the art. Based on the structure and functions described in the present invention, those skilled in the art can select appropriate electronic components from existing technologies to implement the corresponding functions without inventive effort.

[0047] In addition, the split structure of the present invention, that is, the double-layer beam structure (frame main beam, frame cross beam and roller chain) is provided, which is convenient for assembly and transportation.

[0048] The embodiments described in the present invention are merely descriptions of the preferred implementation methods of the present invention and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should fall within the scope of protection of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.

Claims

1. An electric permanent magnetic hanger, characterized in that: It includes a frame main beam, a plurality of frame cross beams arranged below the frame main beam and arrayed along the long side direction of the frame main beam, and a cluster matrix array type electropermanent magnet arranged below the frame cross beam; a plurality of flexible chains are arranged between the frame main beam and the frame cross beam, and the bending direction between adjacent flexible chains forms a spatial angle; the frame main beam and the flexible chain are connected by a first buffer device, and the frame main beam and the frame cross beam are connected by the first buffer device and the flexible chain; the frame cross beam and the electropermanent magnet are connected by a second buffer device; the frame main beam includes a plurality of parallel main beams, and the plurality of main beams are fixedly connected by short beams; a connecting plate is provided on the upper part of the frame main beam, and the connecting plate provides a connecting interface suitable for lifting equipment; a mounting beam is provided on the lower part of the frame main beam, and a first through hole is provided on the mounting beam; the frame cross beam includes a plurality of beams, and the beams are fixed into a frame structure by short beams, and a second through hole is provided on the beam; the first buffer device is installed The mounting beam includes a hanging shaft and an elastic member, the upper end of the hanging shaft is provided with a step to form a "T" shape as a whole, the elastic member is provided on the upper surface of the mounting beam, the hanging shaft passes through the elastic member and the first through hole provided on the mounting beam to form a first buffer device, the step at the upper end of the hanging shaft limits the upper end of the elastic member, the lower end of the hanging shaft is hinged to the top of the flexible chain, the end of the flexible chain is hinged to the upper surface of the frame beam, the two hinge axes are parallel and in the same vertical plane; the second buffer device includes a pull rod, a first compression spring and a second compression spring, the lower end of the pull rod is fixed to the upper surface of the electropermanent magnet, the second compression spring is sleeved on the lower part of the pull rod, the pull rod passes through the second through hole on the beam, the first compression spring is sleeved on the upper part of the pull rod, the lower end of the first compression spring is in contact with the upper surface of the beam, the upper end of the pull rod is provided with a thread, the upper end of the first compression spring is provided with a washer, the washer is sleeved on the pull rod, a nut is provided at the thread of the pull rod, and the nut adjusts the pre-tightening of the first compression spring and the second compression spring.

2. The electric permanent magnetic hanger according to claim 1, characterized in that: A plurality of electropermanent magnets are arranged in an equidistant array along the long side of the same frame beam. The electropermanent magnets are connected to the frame beam via the second buffer device to form an electropermanent magnet array group. The electropermanent magnet array group and the flexible chains connected to the frame main beam are arranged in an even number of symmetry, with at least four being provided. The flexible chains only bend or slide within a plane without distortion, and the bending directions of adjacent flexible chains are perpendicular to each other. The flexible chains include roller chains.

3. The electric permanent magnetic hanger according to claim 2, characterized in that: A loading detection component is provided on at least two groups of the electropermanent magnet array groups, which is used to detect the material adsorption status of the electropermanent magnet array groups when they are working; the electropermanent magnet includes a top plate and a plurality of electropermanent magnet units, the lower end of the pull rod is fixed to the top plate, the plurality of electropermanent magnet units form a rectangular array, and the magnetic poles of the working surfaces of any adjacent electropermanent magnet units are different, and the working surfaces are in the same plane; any single electropermanent magnet or any combination of electropermanent magnets in the electropermanent magnet array group can be individually controlled.

4. The electric permanent magnetic hanger according to claim 3, characterized in that: The feeding detection component is a photoelectric sensor and a reflector, and a matching photoelectric sensor and reflector are arranged in the same electropermanent magnet array group.

5. The electric permanent magnetic hanger according to claim 4, characterized in that: A junction box is provided on the main beam of the frame, and cables of all electropermanent magnets and photoelectric sensors are connected to the junction box and connected to the control system through the junction box.

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