An electromagnetic lifting device for balancing force

Abstract

The present invention relates to the field of electromagnetic hoists, and in particular to an electromagnetic hoist that is convenient for balancing forces. An electromagnetic hoist that is convenient for balancing forces includes a movable pulley block, a steel cable I and a balance beam, etc.; the movable pulley block is connected to four steel cables I; all the steel cables I are connected to the balance beam together. After the wide and thick plate body is adsorbed and fixed by the lifting electromagnet, the starting motor is controlled to move the steel cable II wound on the bobbin, so that the height of the lifting electromagnets at both ends of the steel cable II is adjusted, and then the center of gravity of the wide and thick plate body that is offset forward and backward is pulled to align with the center of gravity of the balance beam, and at the same time, the horizontal movement of the supporting beam is coordinated, so that the wide and thick plate body is pulled to the horizontal in the left and right directions, and then the center of gravity of the wide and thick plate body that is offset left and right is aligned with the center of gravity of the balance beam, effectively reducing the shaking of the wide and thick plate body during the lifting process, and ensuring the stability and safety of the lifting process.

Description

Technical Field

[0001] The invention relates to the field of electromagnetic hangers, and in particular to an electromagnetic hanger that is convenient for balancing forces. Background Art

[0002] Electromagnetic lifters are lifting tools that rely on strong magnetic attraction to lift heavy objects. They are easy to adsorb and fix on ferromagnetic objects. Electromagnetic lifters are widely used in the steel industry.

[0003] Wide and thick plates play an extremely important role in the steel industry. However, the existing technology requires careful positioning of the center of the wide and thick plates before using electromagnetic lifters to lift them, and then controlling the electromagnetic lifters to adsorb and fix the wide and thick plates. However, due to the process and its own defects, the center of gravity of the wide and thick plates does not coincide with its center, which makes the electromagnetic lifters unbalanced when lifting the wide and thick plates, and makes the electromagnetic lifters easy to shake during the lifting process, seriously affecting the safety and stability of the lifting, and threatening the personal safety of the workers. Summary of the invention

[0004] In order to overcome the disadvantage that the center of gravity of the wide and thick plate does not coincide with its center, resulting in unbalanced force on the electromagnetic lifter, which in turn causes the electromagnetic lifter to shake easily during the lifting process, seriously affecting the safety and stability of the lifting, the present invention provides an electromagnetic lifter that is easy to balance the force.

[0005] The technical solution is: an electromagnetic hoist that is easy to balance the force, including a movable pulley group, a steel cable I and a balance beam; the movable pulley group is connected to four steel cables I; all the steel cables I are commonly connected to the balance beam; it also includes a spirit level, a power component, a support beam, a motor, a wire drum, a steel cable II, a guide rod and a lifting electromagnet; the balance beam is equipped with a spirit level, the spirit level consists of two mutually perpendicular bubble tubes, and photoelectric sensors are provided in the bubble tubes; the spirit level is used to detect the horizontal state of the balance beam; the balance beam is connected to a power component; the power component is connected to two support beams; the power component is used to drive the two support beams to move; a motor is installed on each support beam; each motor output shaft is fixedly connected to a wire drum; each wire drum is rotatably connected to a support beam; each wire drum is wound with a number of steel cables II; each support beam is rotatably connected to two guide rods; the steel cables II on the same wire drum are all bypassed by the guide rod, and one end of the wire drum bypassing the steel cables II is commonly connected to a lifting electromagnet.

[0006] Furthermore, the power assembly includes an electric slide rail and an electric slider; the balance beam is equipped with the electric slide rail; two electric sliders are slidably connected to the electric slide rail; and each electric slider is fixedly connected to a support beam.

[0007] Furthermore, it also includes a hanging plate; each lifting electromagnet is fixedly connected to a hanging plate with a smooth bottom surface.

[0008] Furthermore, it also includes an air pump and an air pipe I; two air pumps distributed front and back are installed on each supporting beam; each air pump outlet is connected to an air pipe I; the hanging plate is composed of a lower supporting part and a fence turned upside down on all sides; an annular guide groove is opened in the fence of each hanging plate; each guide groove is connected to an air pipe I; each supporting part is opened with a number of branch holes I; each guide groove is connected to the corresponding branch hole I.

[0009] Furthermore, the branch holes I are obliquely opened on the supporting portion, and all the openings of the branch holes I are inclined toward one side of the center of the supporting portion.

[0010] Furthermore, it also includes heat sinks; a plurality of heat sinks are fixedly connected around each lifting electromagnet; and each hanging plate is fixedly connected to a corresponding heat sink.

[0011] Furthermore, each guide groove is provided with a plurality of branch holes II, and the branch holes II face the direction of the heat sink.

[0012] Furthermore, it also includes an air pipe II, an air filter box, a dust filter plate and a dust collecting box; a partition is provided in each guide groove, which divides the guide groove into two left and right spaces; the left space of the guide groove is connected with the air pipe I; the hanging plate is connected with the air pipe II; each right space of the guide groove is connected with an air pipe II; each air pipe II is connected with an air filter box; each air filter box is fixedly connected to the corresponding support beam; each air filter box is provided with a dust filter plate; each air filter box is detachably connected to a dust collecting box; the dust collecting box is located below the dust filter plate; each air filter box is connected with an air pump.

[0013] Furthermore, the dust filter plate is arranged obliquely on the upper part of the air filter box.

[0014] Furthermore, the dust box is provided with an L-shaped handle, and the handle is provided with a silicone anti-slip cover.

[0015] The beneficial effects are: 1. After the wide and thick plate body is adsorbed and fixed by the lifting electromagnet, the starting motor is controlled to move the steel cable II wound on the bobbin, so that the height of the lifting electromagnets at both ends of the steel cable II is adjusted, and then the center of gravity of the wide and thick plate body that is offset forward and backward is aligned with the center of gravity of the balance beam. At the same time, the support beam moves horizontally, so that the wide and thick plate body is pulled to a horizontal level in the left and right directions, and then the center of gravity of the wide and thick plate body that is offset left and right is aligned with the center of gravity of the balance beam, effectively reducing the shaking of the wide and thick plate body during the lifting process, and ensuring the stability and safety of the lifting process.

[0016] 2. By setting up a hanging plate, blow on the surface of the wide and thick plate body before hanging, reduce the impurity particles at the contact position between the wide and thick plate body and the hanging plate, and collect the impurity particles to avoid insufficient contact between the wide and thick plate body and the hanging plate, and relative slip between the wide and thick plate body and the hanging plate when hanging the wide and thick plate body, which affects the stability of the hanging and causes scratches on the contact surface between the wide and thick plate body and the hanging plate, affecting the aesthetics of the surface of the wide and thick plate body.

[0017] 3. By arranging heat sinks around the lifting electromagnet, it is convenient for the heat of the lifting electromagnet to dissipate, and the air in the guide groove is sprayed to the heat sink, which assists the heat exchange of the heat sink and improves the heat dissipation efficiency of the heat sink, so as to facilitate the rapid cooling of the lifting electromagnet and reduce the accumulation of heat in the lifting electromagnet, thereby ensuring the normal operation of the lifting electromagnet and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the installation position of the wide and thick plate body of the present invention;

[0020] Figure 3 It is a schematic diagram of the installation position of the electric slide rail of the present invention;

[0021] Figure 4 It is a schematic diagram of the winding method of the steel cable II on the bobbin of the present invention;

[0022] Figure 5 It is a schematic diagram of the installation position of the hanging plate of the present invention;

[0023] Figure 6 It is a schematic diagram of the slotting position of the guide groove of the present invention;

[0024] Figure 7 This is a schematic diagram of the opening position of the branch hole I of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the air filter box of the present invention;

[0026] Fig. 9 It is a schematic diagram of the front and rear airflow paths of the hanging plate of the present invention for adsorbing the wide and thick plate body.

[0027] The names and serial numbers of the parts in the figure are as follows: 001-wide and thick plate body, 1-movable pulley block, 2-steel cable Ⅰ, 3-balance beam, 4-level gauge, 5-electric slide rail, 6-electric slider, 7-support beam, 8-motor, 9-spool, 10-steel cable Ⅱ, 11-guide rod, 12-lifting electromagnet, 101-hanging plate, 102-air pump, 103-air pipe Ⅰ, 104-heat sink, 105-air pipe Ⅱ, 106-air filter box, 107-dust filter plate, 108-dust collecting box, 10101-support part, 10102-guide groove, 10103-support hole Ⅰ, 10104-support hole Ⅱ. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0029] Embodiment 1

[0030] An electromagnetic hanger that is convenient for balancing the force, according to Figure 1-Figure 9 As shown, it includes a movable pulley block 1, a steel cable Ⅰ2 and a balance beam 3; the movable pulley block 1 is connected to four steel cables Ⅰ2; all the steel cables Ⅰ2 are connected to the balance beam 3;

[0031] It also includes a spirit level 4, a power assembly, a support beam 7, a motor 8, a bobbin 9, a steel cable II 10, a guide rod 11 and a lifting electromagnet 12; the balance beam 3 is equipped with a spirit level 4, which consists of two mutually perpendicular bubble tubes, each of which is provided with a photoelectric sensor; the spirit level 4 is used to detect the horizontal state of the balance beam 3 in the front-to-back direction and the left-to-right direction; the balance beam 3 is connected to a power assembly; the power assembly is connected to two support beams 7 distributed on the left and right; each support beam 7 is respectively equipped with a motor 8; each motor 8 output shaft is respectively fixedly connected to a wire drum 9; each wire drum 9 is respectively rotatably connected to a support beam 7; each wire drum 9 is respectively wound with two steel cables II 10 distributed on the left and right; each support beam 7 is respectively rotatably connected with two guide rods 11 distributed on the front and back; the steel cables II 10 located on the same wire drum 9 are all bypassed by the guide rod 11, and one end of the steel cables II 10 bypassed by the wire drum 9 is commonly connected to a lifting electromagnet 12.

[0032] The power assembly includes an electric slide rail 5 and an electric slider 6 ; the electric slide rail 5 is installed at the lower part of the balance beam 3 ; two electric sliders 6 distributed on the left and right are slidably connected to the electric slide rail 5 ; each electric slider 6 is fixedly connected to a support beam 7 .

[0033] It also includes a hanging plate 101; each lifting electromagnet 12 is fixedly connected to a hanging plate 101 with a smooth bottom surface at the bottom, which is used to increase the adsorption and fixing area of ​​the lifting electromagnet 12 and the wide and thick plate body 001 and prevent stains from adhering to the lifting electromagnet 12.

[0034] It also includes an air pump 102 and an air pipe Ⅰ103; two air pumps 102 distributed front and back are installed on each supporting beam 7; each air pump 102 outlet is connected to an air pipe Ⅰ103; the hanging plate 101 is composed of a lower supporting part 10101 and a fence turned upward on all sides, and the supporting part 10101 is made of solid ferromagnetic material; an annular guide groove 10102 is opened in the fence of each hanging plate 101; each guide groove 10102 is connected to an air pipe Ⅰ103; each supporting part 10101 is opened with a plurality of branch holes Ⅰ10103 around; each guide groove 10102 is connected to the corresponding branch hole Ⅰ10103.

[0035] The branch holes Ⅰ10103 are obliquely opened on the supporting part 10101, and all the openings of the branch holes Ⅰ10103 are inclined toward one side of the center of the supporting part 10101, so as to be used for blowing and cleaning the surface of the wide and thick plate body 001.

[0036] The working steps of the above embodiment are:

[0037] Before using this lifting device, first control this lifting device to perform self-inspection, monitor the horizontal state of the level meter 4 through the photoelectric sensor in the level meter 4, and then monitor the balance state of the balance beam 3 and the corresponding parts thereon. If it is detected that the balance beam 3 is not in a balanced state, adjust it according to the feedback of the photoelectric sensor of the level meter 4, control the two electric sliders 6 to be in symmetrical positions, and achieve left and right balance of the balance beam 3, then control the start motor 8, the output shaft of the motor 8 rotates, and synchronously drives the winding state of the steel cable II 10 to change, so that the corresponding lifting electromagnet 12 on the supporting beam 7 rises in height and the other lifting electromagnet 12 drops in height, so that the two lifting electromagnets 12 on the same supporting beam 7 are at the same horizontal height position, so as to achieve the front and rear balance of the balance beam 3, and effectively avoid the wide and thick plate body 001 from tilting when the wide and thick plate body 001 is lifted due to the imbalance of the lifting device itself, thereby affecting the smooth lifting and transportation of the wide and thick plate body 001.

[0038] After completing the above-mentioned balancing self-check, the hoist is controlled to descend, and the lifting electromagnet 12 and the corresponding parts thereon are moved downward synchronously. At the same time, according to the width of the wide and thick plate body 001 to be hoisted, the two electric slides 6 are controlled to move, and the support beam 7 and the corresponding parts thereon are driven to move synchronously, so that the center of gravity of the balance beam 3 corresponds to the center of gravity of the wide and thick plate body 001, until the lifting electromagnet 12 moves to the position above the wide and thick plate body 001. Thus, by adjusting the position of the lifting electromagnet 12, wide and thick plate bodies 001 of multiple specifications can be hoisted, and the applicability is wide. Then all the air pumps 102 are controlled to start, and the air pumps 102 pump air into the guide groove 10102 through the air pipe I103, and then from the support hole I10 103 is sprayed out, so that before the hanging plate 101 contacts the wide and thick plate body 001, the wind blown out from the support hole Ⅰ 10103 will first blow and clean the surface of the wide and thick plate body 001, effectively avoiding the presence of foreign particles between the wide and thick plate body 001 and the hanging plate 101, resulting in insufficient contact between the wide and thick plate body 001 and the hanging plate 101, and relative slip between the wide and thick plate body 001 and the hanging plate 101 when the wide and thick plate body 001 is hoisted, which not only affects the stability of the hoisting, but also causes scratches on the contact surface between the wide and thick plate body 001 and the hanging plate 101. After the hanging plate 101 contacts the wide and thick plate body 001, the lifting electromagnet 12 is controlled to start, and the lifting electromagnet 12 magnetizes the solid ferromagnetic supporting part 10101 of the hanging plate 101. Then, the supporting part 10101 is used to tightly absorb the wide and thick plate body 001 to fix the wide and thick plate body 001, and then the lifting device is controlled to move upward to slowly lift the wide and thick plate body 001. At the same time, the feedback of the photoelectric sensor in the level meter 4 is also paid attention to at all times. By controlling the starting motor 8, the height position of the corresponding lifting electromagnet 12 is changed, and the relative length of the force arm is adjusted by controlling the distance between the lifting electromagnet 12 and the support beam 7, and then the center of gravity of the wide and thick plate body 001 is controlled to be close to the middle position between the two support beams 7, so as to adjust the front and rear force of the wide and thick plate body 001 to make it balanced and convenient for lifting and loading and unloading. If the center of gravity of the wide and thick plate body 001 is not in a horizontal position in the left and right directions, the electric motor is controlled at this time. The slider 6 moves on the electric slide rail 5, synchronously driving the support beam 7 and the corresponding parts thereon to move. At this time, the hanging plate 101 is tightly fixed on the wide and thick plate body 001. When the distance between the two electric sliders 6 changes, the steel cable Ⅱ10 on one side changes from a vertical state to an inclined state, so that the cubic lifting form composed of two support beams 7, four steel cables Ⅱ10 and the wide and thick plate body 001 is converted into a step-shaped lifting state, so that the side of the wide and thick plate body 001 that is tilted and pulled by the steel cable Ⅱ10 is pulled upward, thereby making the center of gravity of the wide and thick plate body 001 approach the direction of movement of the electric slider 6, and finally making the center of gravity of the wide and thick plate body 001 aligned with the center of gravity of the balance beam 3 in the left and right direction, thereby ensuring the force balance of the wide and thick plate body 001.It effectively prevents the thick plate body 001 from shaking during the hoisting process, making the thick plate body 001 hoisted smoothly and ensuring the stability and safety of the hoisting process.

[0039] Second embodiment

[0040] On the basis of the first embodiment, according to Figure 1-Figure 2 and Figure 5-Figure 9 As shown, heat sinks 104 are also included; a plurality of heat sinks 104 are fixedly connected around each lifting electromagnet 12 ; and each hanging plate 101 is fixedly connected to a corresponding heat sink 104 .

[0041] A plurality of branch holes II 10104 are formed on each guide groove 10102 , and the branch holes II 10104 face the direction of the heat sink 104 .

[0042] It also includes an air pipe II 105, an air filter box 106, a dust filter plate 107 and a dust collecting box 108; each guide groove 10102 is provided with a partition, which divides the guide groove 10102 into two left and right spaces; the left space of the guide groove 10102 is connected with the air pipe I 103; the hanging plate 101 is connected with the air pipe II 105; each right space of the guide groove 10102 is connected with an air pipe II 105; each air pipe II 105 is connected with an air filter box 106; each air filter box 106 is fixedly connected to the corresponding support beam 7; each air filter box 106 is provided with a dust filter plate 107; each air filter box 106 is detachably connected with a dust collecting box 108; the dust collecting box 108 is located below the dust filter plate 107; each air filter box 106 is connected with an air pump 102.

[0043] The dust filter plate 107 is tiltedly arranged on the upper part of the air filter box 106 to reduce dust deposition and improve filtering efficiency.

[0044] The dust box 108 is provided with an L-shaped handle, and the handle is provided with a silicone anti-slip cover.

[0045] The working steps of the above embodiment are:

[0046] On the basis of the first embodiment, after the lifting electromagnet 12 is energized, the lifting electromagnet 12 generates a strong magnetic field, and then magnetizes the supporting part 10101, and then adsorbs and fixes the wide and thick plate body 001. Since the resistance of the electromagnet coil has hysteresis and eddy current loss, the electromagnetic lifter will generate a lot of heat during operation. Therefore, a number of branch holes II 10104 are opened on the hanging plate 101, and a number of heat sinks 104 are added, so that the heat generated by the lifting electromagnet 12 during operation is discharged through the heat sink 104, and the heat dissipation of the lifting electromagnet 12 is achieved through heat exchange. At the same time, when the hanging plate 101 absorbs the wide and thick plate body 001, the lower mouth of the branch hole I 10103 is blocked, and the air in the right space of the guide groove 10102 is blown out through the right branch hole II 10104, and the outside air is sucked into the left space of the guide groove 10102 through the left branch hole II 10104. Fig. 9 As shown in the figure below, air passes through the position of the heat sink 104 during the flow process, assisting the heat sink 104 to perform heat exchange, thereby improving the heat dissipation efficiency of the heat sink 104, facilitating rapid cooling of the lifting electromagnet 12, reducing heat accumulation in the lifting electromagnet 12, and ensuring the normal operation of the lifting electromagnet 12 and extending its service life.

[0047] After the lifting plate 101 has lifted the thick plate body 001, the lifting electromagnet 12 is controlled to be closed. There is also a large amount of heat that has not been dissipated at the contact position between the lifting plate 101 and the thick plate body 001. At this time, the support hole I 10103 is not blocked. Fig. 9 As shown in the above figure, the air in the guide groove 10102 is also blown out through the right branch hole Ⅰ10103 and inhaled from the left branch hole Ⅰ10103. The flow of air drives the flow of air under the hanging plate 101, thereby quickly cooling down the supporting part 10101, avoiding heat accumulation in the supporting part 10101, resulting in a decrease in the magnetization intensity of the hanging plate 101 during the next hanging, resulting in a decrease in the adsorption force of the hanging plate 101 on the wide and thick plate body 001, and a poor fixing effect on the wide and thick plate body 001, which can easily cause safety accidents.

[0048] At the same time, when the wide and thick plate body 001 is blown away by the impurity particles on the surface, the right branch hole Ⅰ10103 blows the dust on the wide and thick plate body 001 to the left, and the lifted impurity particles enter the left space of the guide groove 10102 from the left branch hole Ⅰ10103, and then flow upward with the air, enter the air filter box 106 through the air pipe Ⅱ105, and then flow back to the air pump 102 through the dust filter plate 107. The dust filter plate 107 filters the impurity particles in the air flowing through, and because it is tilted in the air filter box 106, the dust impurities accumulated on the dust filter plate 107 fall directly into the dust box 108 after falling, and then you only need to regularly pull out the dust box 108, pour out the dust in the dust box 108, and then reset the dust box 108.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electromagnetic lifting device for balancing force, comprising a movable pulley block (1), a steel cable I (2) and a balance beam (3); the movable pulley block (1) is connected to four steel cables I (2); all the steel cables I (2) are connected to the balance beam (3); the characteristics are as follows: The invention also comprises a level (4), a power assembly, a support beam (7), a motor (8), a bobbin (9), a steel cable II (10), a guide rod (11) and a lifting electromagnet (12); the balance beam (3) is provided with a level (4), the level (4) is composed of two mutually perpendicular bubble tubes, each of which is provided with a photoelectric sensor; the level (4) is used to detect the horizontal state of the balance beam (3); the balance beam (3) is connected to a power assembly; the power assembly is connected to two support beams (7); the power assembly is used to drive the two support beams (7) to move the balance beam (3 ... The support beam (7) moves; a motor (8) is mounted on each support beam (7); a bobbin (9) is fixedly connected to the output shaft of each motor (8); each bobbin (9) is rotatably connected to a support beam (7); a plurality of steel cables II (10) are wound around each bobbin (9); each support beam (7) is rotatably connected to two guide rods (11); the steel cables II (10) on the same bobbin (9) are wound around the guide rod (11), and one end of the steel cables II (10) is connected to a lifting electromagnet (12); It also includes a hanging plate (101); each lifting electromagnet (12) is fixedly connected to a hanging plate (101) with a smooth bottom surface; It also includes an air pump (102) and an air pipe I (103); two air pumps (102) are installed on each supporting beam (7) and are distributed front and back; the air outlet of each air pump (102) is connected to an air pipe I (103); the hanging plate (101) is composed of a lower supporting part (10101) and a fence turned upward on all sides; an annular guide groove (10102) is opened in the fence of each hanging plate (101); each guide groove (10102) is connected to an air pipe I (103); each supporting part (10101) is opened on all sides with a plurality of branch holes I (10103); each guide groove (10102) is connected to a corresponding branch hole I (10103); It also includes an air pipe II (105), an air filter box (106), a dust filter plate (107) and a dust collection box (108); each guide groove (10102) is provided with a partition plate, and the partition plate divides the guide groove (10102) into two left and right spaces; the left space of the guide groove (10102) is connected to the air pipe I (103); the hanging plate (101) is connected to the air pipe II (105); each right space of the guide groove (10102) is connected to a respective air pipe II (105) each air pipe II (105) is connected to an air filter box (106); each air filter box (106) is fixedly connected to a corresponding support beam (7); each air filter box (106) is provided with a dust filter plate (107); each air filter box (106) is detachably connected to a dust collection box (108); the dust collection box (108) is located below the dust filter plate (107); each air filter box (106) is connected to an air pump (102).

2. The electromagnetic hanger for balancing force according to claim 1, characterized in that: The power assembly comprises an electric slide rail (5) and an electric slider (6); the balance beam (3) is equipped with the electric slide rail (5); two electric sliders (6) are slidably connected to the electric slide rail (5); and each electric slider (6) is fixedly connected to a support beam (7).

3. The electromagnetic hanger for balancing force according to claim 1, characterized in that: The branch holes I (10103) are obliquely opened on the supporting portion (10101), and all the openings of the branch holes I (10103) are inclined toward one side of the center of the supporting portion (10101).

4. An electromagnetic hanger for balancing force according to any one of claims 1 to 3, characterized in that: It also includes heat sinks (104); each lifting electromagnet (12) is fixedly connected to a plurality of heat sinks (104) around its periphery; and each hanging plate (101) is fixedly connected to a corresponding heat sink (104).

5. The electromagnetic lifting device for balancing force according to claim 4, characterized in that: A plurality of branch holes II (10104) are formed on each guide groove (10102), and the branch holes II (10104) face the direction of the heat sink (104).

6. The electromagnetic hanger for balancing force according to claim 1, characterized in that: The dust filter plate (107) is arranged obliquely on the upper part of the air filter box (106).

7. The electromagnetic hanger for balancing force according to claim 6, characterized in that: The dust collection box (108) is provided with an L-shaped handle, and the handle is provided with a silicone anti-slip cover.

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