An electric permanent magnetic hanger

Abstract

The present invention relates to hoisting equipment, and in particular to an electric permanent magnet hoist. The electric permanent magnet hoist comprises an upper hoisting frame and a lower hoisting frame arranged up and down, wherein the lower hoisting frame comprises a rectangular beam and four columns arranged at the bottom of the rectangular beam, and each column is provided with a plurality of electric permanent magnet moving parts along the height direction, and a multi-layer steel coil bracket can be adsorbed and hoisted by the plurality of electric permanent magnet moving parts. The present invention can install and disassemble the steel coil bracket by a crane by self-adapting the posture of the electric permanent magnet, has high efficiency and high safety, reduces labor costs, and realizes automatic loading and unloading.

Description

Technical Field

[0001] The invention relates to lifting equipment, in particular to an electric permanent magnet lifting device. Background Art

[0002] Most of the coils produced by steel mills need to be transported to various places by rail. Due to process reasons, the coils need to be shipped horizontally. In order to ensure stability and safety during transportation, a special coil bracket must be placed in the carriage before loading the coils. After arriving at the destination, the coil bracket also needs to be unloaded after the coils are unloaded. At present, the loading and unloading of coil brackets mainly rely on manual hooking of wire ropes. There is no special equipment, which has the disadvantages of low efficiency and potential safety hazards. At the same time, it is impossible to realize unmanned and automated loading of coil brackets, and the number of lifting layers cannot be selected. Summary of the invention

[0003] In view of the above problems, the purpose of the present invention is to provide an electric permanent magnetic hanger to solve the problems of low safety, inability to select the number of lifting layers and low efficiency during the loading and unloading process of the existing steel coil bracket.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An embodiment of the present invention provides an electro-permanent magnetic lifter, comprising an upper lifting frame and a lower lifting frame arranged one above the other, wherein the lower lifting frame comprises a rectangular beam and four columns arranged at the bottom of the rectangular beam, and each column is provided with a plurality of electro-permanent magnetic moving parts along the height direction, and a multi-layer steel coil bracket can be adsorbed and lifted by the plurality of electro-permanent magnetic moving parts.

[0006] In a possible implementation, a plurality of electro-permanent magnet mounting holes are provided on each of the columns at equal intervals in the height direction, and an electro-permanent magnet moving component is slidably mounted in each of the electro-permanent magnet mounting holes in the horizontal direction.

[0007] In a possible implementation, the electro-permanent magnetic moving part is connected to the column via a spring, and the spring is used to reset the electro-permanent magnetic moving part.

[0008] In one possible implementation, the electro-permanent magnetic moving component includes a shell and an electro-permanent magnet arranged in the shell, wherein a protrusion is provided at the bottom of the shell, and two springs are respectively provided on both sides of the protrusion, and both ends of each spring are restricted between the column and two spring seats provided on the protrusion.

[0009] In a possible implementation, a special-shaped limiting portion is provided at the outer end of the protrusion, and the special-shaped limiting portion protrudes from the outer side of the electropermanent magnet.

[0010] In a possible implementation, the upper surface of the shell and the protrusion are slidably matched with the inner wall of the electro-permanent magnet mounting hole, and a gap is left between the left and right sides of the shell and the electro-permanent magnet mounting hole.

[0011] In a possible implementation, a guiding curved surface is provided at the bottom of the column.

[0012] In one possible implementation, the upper lifting frame includes a first beam, a second beam, a first steel cable, a second steel cable and a lifting ring, wherein there are two second beams and they are arranged in parallel; the first beam is vertically arranged above the two second beams, and the two ends of the first beam are respectively connected to the middle positions of the two second beams through the first steel cable, and the two ends of each second beam are connected to the rectangular beam through the second steel cable; the lifting ring is arranged in the middle position of the first beam.

[0013] In one possible implementation, the steel coil bracket includes a frame and a V-shaped support bracket arranged on the frame, and lifting beams are provided on both sides of the V-shaped support bracket; there is a lifting distance between the bottom of the lifting beam and the bottom of the frame into which the front end of the electro-permanent magnetic moving component can be inserted.

[0014] In another embodiment of the present invention, the electro-permanent magnetic moving part includes an adsorption electromagnet, a retraction electromagnet, a lifting piece, a connecting shaft and an adsorption plate, wherein the connecting shaft passes through the column and can slide relative to the column, the lifting piece and the adsorption plate are respectively arranged at both ends of the connecting shaft, and the lifting piece is located on the inner side of the column and is used to lift the steel coil bracket;

[0015] The adsorption electromagnet and the retraction electromagnet are respectively arranged on two pairs of sides of the column, and the adsorption electromagnet and the retraction electromagnet correspond to the adsorption plate and the lifting piece respectively; when the adsorption electromagnet is attracted to the adsorption plate, the lifting piece is extended; when the retraction electromagnet is attracted to the lifting piece, the lifting piece is retracted.

[0016] The advantages and beneficial effects of the present invention are as follows: the present invention provides an electro-permanent magnetic hanger, which can self-install and disassemble the steel coil bracket by a crane through the posture adaptation of the electro-permanent magnet, has high efficiency and high safety, reduces labor costs, and realizes automated loading and unloading.

[0017] The invention is light, low in cost and weight, can be disassembled into pieces for packaging and transportation, and can be adapted to all steel coil brackets.

[0018] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 An isometric view of an electro-permanent magnet hanger according to an embodiment of the present invention;

[0022] Figure 2 An isometric view of an electro-permanent magnetic moving part in one embodiment of the present invention;

[0023] Figure 3 A bottom view of an electro-permanent magnetic moving part in one embodiment of the present invention;

[0024] Figure 4 It is a front view of an electric permanent magnet moving component in one embodiment of the present invention;

[0025] Figure 5 is an isometric view of a steel coil bracket according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the working state of an electro-permanent magnet hanger in one embodiment of the present invention;

[0027] Figure 7 A partial cross-sectional view of a working state of an electro-permanent magnet hanger in one embodiment of the present invention;

[0028] Figure 8 for Figure 7 A partial enlarged view of the middle part;

[0029] Fig. 9 This is a schematic diagram of a working scene of an electro-permanent magnet hanger in one embodiment of the present invention;

[0030] Fig.10 It is a schematic structural diagram of an electric permanent magnet moving part in another embodiment of the present invention;

[0031] In the figure: 1 is the first beam, 2 is the second beam, 3 is the rectangular beam, 4 is the electro-permanent magnet moving part, 401 is the shell, 402 is the bottom surface, 403 is the special-shaped limiting part, 404 is the middle curved surface guide, 405 is the lower curved surface guide, 406 is the upper curved surface guide, 407 is the electro-permanent magnet, 408 is the protrusion, 5 is the steel coil bracket, 501 is the frame, 502 is the lifting beam, 503 is the V-shaped support bracket, 504 is the bottom plate, 6 is the cargo box, 7 is the column, 701 is the guide curved surface, 702 is the electro-permanent magnet mounting hole, 8 is the steel coil, 9 is the spring, 10 is the first steel cable, 11 is the second steel cable, 12 is the lifting ring, 13 is the adsorption electromagnet, 14 is the retraction electromagnet, 15 is the lifting member, 16 is the connecting shaft, and 17 is the adsorption plate. DETAILED DESCRIPTION

[0032] In the description of the present invention, it should be understood that 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 indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] An embodiment of the present invention provides an electric permanent magnet hoist, which can self-install and disassemble the steel coil bracket by a crane through the position adaptation of the electric permanent magnet, with high efficiency and high safety, reducing labor costs and realizing automatic loading and unloading. Figure 1 As shown, the electric permanent magnetic lifter includes an upper lifting frame and a lower lifting frame which are arranged up and down, wherein the lower lifting frame includes a rectangular beam 3 and four columns 7 arranged at the bottom of the rectangular beam 3, and each column 7 is provided with a plurality of electric permanent magnetic moving parts 4 along the height direction, and the plurality of electric permanent magnetic moving parts 4 can be used to adsorb and lift multi-layer steel coil brackets 5.

[0037] See also Figure 1 As shown, in the embodiment of the present invention, the upper hoisting frame includes a first beam 1, a second beam 2, a first steel cable 10, a second steel cable 11 and a lifting ring 12, wherein the second beams 2 are two and arranged in parallel; the first beam 1 is vertically arranged above the two second beams 2, the two ends of the first beam 1 are respectively connected to the middle positions of the two second beams 2 through the first steel cable 10, and the two ends of each second beam 2 are connected to the rectangular beam 3 through the second steel cable 11; the lifting ring 12 is arranged in the middle position of the first beam 1. The length of the first steel cable 10 and the second steel cable 11 can be adjusted through the upper and lower connection points to perform gravity leveling on the hoist.

[0038] See also Figures 2 to 4 As shown, in the embodiment of the present invention, a plurality of electro-permanent magnet mounting holes 702 are provided on each column 7 at equal intervals along the height direction, and the electro-permanent magnet mounting holes 702 on the four columns 7 correspond to each other one by one, and an electro-permanent magnet moving component 4 can be slidably installed in each electro-permanent magnet mounting hole 702 along the horizontal direction.

[0039] Furthermore, the electro-permanent magnetic moving part 4 is connected to the column 7 via a spring 9 , and the spring 9 is used for resetting the electro-permanent magnetic moving part 4 .

[0040] See also Figure 2 As shown, in the embodiment of the present invention, the electro-permanent magnetic moving component 4 includes a housing 401 and an electro-permanent magnet 407 arranged in the housing 401, wherein a protrusion 408 is provided at the bottom of the housing 401, and two springs 9 are respectively provided on both sides of the protrusion 408, and the two ends of each spring 9 are restricted between the column 7 and the two spring seats provided on the protrusion 408.

[0041] Furthermore, a special-shaped stopper 403 is provided at the outer end of the protrusion 408, and the special-shaped stopper 403 protrudes from the outer side of the electro-permanent magnet 407 so as to support the steel coil bracket 5. Figure 8 As shown, in this embodiment, the special-shaped limiting portion 403 includes an upper curved surface guide 406, a middle curved surface guide 404 and a lower curved surface guide 405 which smoothly transition from top to bottom. The middle curved surface guide 404 and the upper curved surface guide 406 prevent the steel coil bracket 5 from sliding down and falling off.

[0042] Specifically, the upper surface of the housing 401 and the raised portion 408 are slidably matched with the inner wall of the permanent magnet mounting hole 702, and a gap is left between the left and right sides of the housing 401 and the permanent magnet mounting hole 702, so that when the permanent magnet 407 is adsorbed with the steel coil bracket 5, it can adapt to its position by moving left and right or swinging in the permanent magnet mounting hole 702, thereby increasing the adsorption and bonding area of ​​the permanent magnet 407 and the steel coil bracket 5 and improving the safety of adsorption and lifting. The bottom surface 402 of the permanent magnet moving component 4 can be used for positioning with the bottom of the cargo box or the ground.

[0043] Furthermore, a guide curved surface 701 is provided at the bottom of the column 7 so as to be inserted into the stacked multi-layer steel coil brackets 5 .

[0044] See also Figure 5 As shown, in the embodiment of the present invention, the steel coil bracket 5 includes a frame 501 and a V-shaped support bracket 503 arranged on the frame 501, and lifting beams 502 are arranged on both sides of the V-shaped support bracket 503.

[0045] Furthermore, a bottom plate 504 for supporting the hanging beam 502 is provided at the center of the frame 501. A hanging distance is provided between the bottom of the hanging beam 502 and the bottom of the frame 501, into which the special-shaped limiter 403 at the front end of the electro-permanent magnetic moving part 4 can be inserted. The electro-permanent magnet 407 is adaptive and completely fits and absorbs the hanging beam 502.

[0046] See also Figures 6 to 8 As shown, when the steel coil bracket 5 is stacked in the height direction, the upper part of the bottom plate 504 overlaps the lifting beam 502, so there is a gap a=10mm between the lifting beam 502 of the lowest layer and the ground, so the height of the special-shaped limiter 403 is less than a=10mm, so that it can be inserted into the bottom of the lifting beam 502. The thickness of the frame 501 is e=120mm, the thickness of the lifting beam 502 is c=60mm, and the height difference between two adjacent lifting beams 502 produces a gap d=60mm, and the gap d>the height of the special-shaped limiter 403, which is convenient for the lifting operation of the electric permanent magnetic moving component 4.

[0047] Furthermore, a monitoring device is provided on the lower hoisting frame, which is convenient for the operator to operate outside the cargo box 6 and load and unload the cargo in the cargo box 6 through the crane and the hoisting device, see Fig. 9 In this embodiment, the upper hanging frame and the lower hanging frame are both made of hollow rectangular steel.

[0048] In the embodiment of the present invention, the lifting operation is completed in a limited working space, and the steel coil bracket 5 is stacked from bottom to top in the cargo box 6. The gap between the frame 501 of the steel coil bracket 5 and the cargo box 6 is small, which is inconvenient for the insertion and lifting of the lifting tool. Therefore, four lifting beams 502 are symmetrically arranged on the frame 501. There is enough operating space between the lifting beams 502 and the bottom and surrounding frames of the frame 501, which is convenient for the insertion of the four columns 7 of the electric permanent magnetic lifting device. The four columns 7 adsorb and lift the four lifting beams 502 on the inner side of the frame 501, so as to realize the lifting of the steel coil bracket 5 in the limited working space. At the same time, the lifting of the multi-layer steel coil bracket 5 is realized through the multi-layer electric permanent magnetic moving parts 4 of the four columns 7, thereby improving the work efficiency. Specifically, the electro-permanent magnetic moving part 4 has an adaptive function under the interference of external forces. The adaptive function is that when the electro-permanent magnet 407 of the electro-permanent magnetic moving part 4 adsorbs the hoisting beam 502, the electro-permanent magnetic moving part 4 can be adaptive in three directions of extension, lateral displacement and rotation in the horizontal plane in a local range, so as to better fit and adsorb the hoisting beam 502 and improve the installation performance of the hoisting. At the same time, the springs 9 on both sides provide reset power to ensure that the electro-permanent magnet 407 is in full contact with the hoisting beam 502. Preferably, the horizontal lateral natural state gap b between the two sides of the electro-permanent magnetic moving part 4 and the column 7 is 10 mm, see Figure 4 In this embodiment, the electro-permanent magnet 407 directly contacts and adsorbs the hoisting beam 502, and the special-shaped limiter 403 at the bottom front end of the shell 401 limits and lifts the bottom of the hoisting beam 502 to prevent the steel coil bracket 5 from sliding off, thereby improving the safety of hoisting.

[0049] See also Fig.10 As shown, another embodiment of the present invention provides an electric permanent magnet lifting device, in which only the electric permanent magnet moving part 4 is different from the previous embodiment. In this embodiment, the electric permanent magnet moving part 4 includes an adsorption electromagnet 13, a retraction electromagnet 14, a lifting piece 15, a connecting shaft 16 and an adsorption plate 17, wherein the connecting shaft 16 passes through the column 7 and can slide relative to the column 7, the lifting piece 15 and the adsorption plate 17 are respectively arranged at both ends of the connecting shaft 16, and the lifting piece 15 is located on the inner side of the column 7. Specifically, the lifting member 15 is an L-shaped structure, used to lift the hoisting beam 502 of the steel coil bracket 5; the adsorption electromagnet 13 and the retraction electromagnet 14 are respectively arranged on two pairs of sides of the column 7, and the adsorption electromagnet 13 and the retraction electromagnet 14 correspond to the adsorption plate 17 and the lifting member 15 respectively; when the adsorption electromagnet 13 and the adsorption plate 17 are attracted to each other, the lifting member 15 is extended, and the lifting member 15 can fit the side and bottom of the hoisting beam 502; when the retraction electromagnet 14 and the lifting member 15 are attracted to each other, the lifting member 15 is retracted, and the lifting member 15 is separated from the hoisting beam 502. When working, the four permanent magnet moving parts 4 at the same height on the four columns 7 act simultaneously to complete the lifting and hoisting of a steel coil bracket 5, and the hoisting process is safe, reliable, convenient and fast.

[0050] The present invention provides an electric permanent magnet hoist, which can be used in a restricted working space. Through the self-adaptation of the position of the electric permanent magnet, the steel coil bracket can be installed and removed by a crane, which has high working efficiency and high safety, reduces labor costs, and realizes automatic loading and unloading. The present invention can select the number of lifting layers and simultaneously lift stacked multi-layer steel coil brackets to improve working efficiency.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An electric permanent magnetic hanger, characterized in that: It comprises an upper hanging frame and a lower hanging frame which are arranged above and below each other, wherein the lower hanging frame comprises a rectangular beam (3) and four columns (7) arranged at the bottom of the rectangular beam (3), and each column (7) is provided with a plurality of permanent magnet moving parts (4) along the height direction, and a multi-layer steel coil bracket (5) can be adsorbed and hung by the plurality of permanent magnet moving parts (4); A plurality of electro-permanent magnet mounting holes (702) are provided on each of the uprights (7) at equal intervals in the height direction, and an electro-permanent magnet moving component (4) is mounted in each of the electro-permanent magnet mounting holes (702) so as to be slidable in the horizontal direction; The electro-permanent magnetic moving part (4) is connected to the column (7) via a spring (9), and the spring (9) is used to reset the electro-permanent magnetic moving part (4); The electro-permanent magnetic moving component (4) comprises a housing (401) and an electro-permanent magnet (407) arranged in the housing (401), wherein a protrusion (408) is provided at the bottom of the housing (401), two springs (9) are provided on both sides of the protrusion (408), and two ends of each spring (9) are restricted between the column (7) and two spring seats provided on the protrusion (408); A special-shaped limiting portion (403) is provided at the outer end of the protruding portion (408), and the special-shaped limiting portion (403) protrudes from the outer side of the electropermanent magnet (407).

2. The electric permanent magnetic hanger according to claim 1, characterized in that: The upper surface of the shell (401) and the raised portion (408) are slidably matched with the inner wall of the electro-permanent magnet mounting hole (702), and a gap is left between the left and right sides of the shell (401) and the electro-permanent magnet mounting hole (702).

3. The electric permanent magnetic hanger according to claim 1, characterized in that: A guiding curved surface (701) is provided at the bottom of the upright column (7).

4. The electric permanent magnetic hanger according to claim 1, characterized in that: The upper hanging frame comprises a first beam (1), a second beam (2), a first steel cable (10), a second steel cable (11) and a lifting ring (12), wherein the second beams (2) are two and arranged in parallel; the first beam (1) is vertically arranged above the two second beams (2); the two ends of the first beam (1) are respectively connected to the middle positions of the two second beams (2) through the first steel cable (10); the two ends of each second beam (2) are connected to the rectangular beam (3) through the second steel cable (11); and the lifting ring (12) is arranged in the middle position of the first beam (1).

5. The electric permanent magnetic hanger according to claim 1, characterized in that: The steel coil bracket (5) comprises a frame (501) and a V-shaped support bracket (503) arranged on the frame (501), and lifting beams (502) are arranged on both sides of the V-shaped support bracket (503); there is a lifting distance between the bottom of the lifting beam (502) and the bottom of the frame (501) into which the front end of the electro-permanent magnetic moving component (4) can be inserted.

6. An electric permanent magnetic hanger, characterized in that: It comprises an upper hanging frame and a lower hanging frame which are arranged above and below each other, wherein the lower hanging frame comprises a rectangular beam (3) and four columns (7) arranged at the bottom of the rectangular beam (3), and each column (7) is provided with a plurality of permanent magnet moving parts (4) along the height direction, and a multi-layer steel coil bracket (5) can be adsorbed and hung by the plurality of permanent magnet moving parts (4); The electro-permanent magnetic moving component (4) comprises an adsorption electromagnet (13), a retraction electromagnet (14), a lifting member (15), a connecting shaft (16) and an adsorption plate (17), wherein the connecting shaft (16) passes through the column (7) and can slide relative to the column (7), the lifting member (15) and the adsorption plate (17) are respectively arranged at two ends of the connecting shaft (16), and the lifting member (15) is located on the inner side of the column (7) and is used to lift the steel coil bracket (5); The adsorption electromagnet (13) and the retraction electromagnet (14) are respectively arranged on opposite sides of the column (7), and the adsorption electromagnet (13) and the retraction electromagnet (14) correspond to the adsorption plate (17) and the lifting member (15) respectively; when the adsorption electromagnet (13) and the adsorption plate (17) are attracted to each other, the lifting member (15) is extended; when the retraction electromagnet (14) and the lifting member (15) are attracted to each other, the lifting member (15) is retracted.

Images