Permanent magnet electromagnet

Abstract

The utility model discloses a permanent magnet electromagnet which comprises a coil. According to the utility model, through the arrangement of the quick connecting device, under the transmission of the screw rod and the connecting plate, the vertical rods arranged at the four corners of the bottom of the connecting plate can synchronously move downwards to be connected with the connecting grooves formed in the plug connectors arranged at the two sides for transmission, so that the plug shaft is inserted into the magnetic conductive plate and the coil under the action of extrusion transmission; and externally-arranged pressing blocks are embedded into the magnetic conductive plates to realize pressing, reinforcing and matching, so that rapid combination of the magnetic conductive plates arranged on the two sides and the coil can be conveniently and rapidly carried out, on the contrary, when indirect upward movement of the vertical rods arranged at the four corners is realized by rotating the screw rods, the plugging extrusion effect on the plugging shaft is relieved, and the whole plugging piece can be moved out, so that the plugging piece is convenient to assemble and disassemble. Therefore, the magnetic conductive plates arranged on the two sides and the coil are assembled and disassembled conveniently, and the advantages of convenient combination and maintenance are achieved.

Description

Technical Field

[0001] The utility model relates to the field of permanent magnet electromagnets, in particular to a permanent magnet electromagnet. Background Art

[0002] An electromagnet is a device that generates electromagnetic fields when electricity is applied. A conductive winding matching its power is wound around the outside of an iron core. This coil with current flowing through it has magnetic properties like a magnet. It is also called an electromagnet. We usually make it into a bar or hoof shape to make the iron core easier to magnetize. In addition, in order to demagnetize the electromagnet immediately when the power is turned off, we often use soft iron or silicon steel materials with faster demagnetization to make it. Such an electromagnet is magnetic when the power is applied, and the magnetism disappears when the power is turned off.

[0003] At present, when lifting and transporting some metal materials, permanent magnets are generally required to achieve magnetic lifting and transportation coordination. Today's permanent magnets need to realize the combined docking of the magnetizer and the coil, and the method adopted is generally bolt fastening. This method is not fast enough to install, and the efficiency of subsequent disassembly and maintenance of the permanent magnet is poor. Therefore, the structure of the permanent magnet needs to be adjusted to meet the needs of convenient combination or disassembly and maintenance. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a permanent magnet electromagnet.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a permanent magnet electromagnet, comprising a coil, a non-magnetic body, a magnetic conductive plate, a permanent magnetic block, a lifting ear, a sling and a quick-connect device, wherein a non-magnetic body is installed in the middle of the coil, a magnetic conductive plate is connected to the outside of the coil, and a permanent magnetic block is installed at the lower end of the magnetic conductive plate, a lifting ear is fixedly connected to the side of the upper end of the magnetic conductive plate, and the inside of the lifting ear is connected to the sling, a quick-connect device is provided on the outside of the upper end of the magnetic conductive plate, the quick-connect device comprises a sleeve connected to the upper end of the magnetic conductive plate, a screw installed inside the sleeve, a connecting plate connected to the lower end of the screw, a support rod inserted into the inside of both sides of the connecting plate, a vertical rod fastened to the lower end of the connecting plate, and a connector inserted into the inside of the sleeve and connected to the lower end of the vertical rod, the connector is connected to the coil and the inside of the magnetic conductive plate.

[0006] Preferably, the connector includes a fixing plate embedded in the housing, a plug-in shaft plugged into both ends of the inner side of the fixing plate, a connecting groove provided in the plug-in shaft, and a pressure block fixed to the outer side of the plug-in shaft.

[0007] Preferably, two magnetic conductive plates are correspondingly provided along the outer side of the coil, and the coil and the permanent magnet block are respectively installed above and below the two magnetic conductive plates.

[0008] Preferably, the casing is correspondingly sleeved on the upper ends of the magnetic conductive plates on both sides, and both sides of the outer end of the casing are provided with connection portions corresponding to the outer sides of the magnetic conductive plates.

[0009] Preferably, the screw is vertically rotatably connected to the middle portion of the upper end of the sleeve, and the sleeve is correspondingly threadedly connected to the middle portion of the connecting plate.

[0010] Preferably, the connecting plate is in the shape of a rectangular plate and is flatly laid inside the upper end of the casing, and the vertical rods are fixed at the four corners of the bottom of the connecting plate.

[0011] Preferably, the connectors are symmetrically arranged in two groups, and the overall structures of the two groups of connectors are consistent.

[0012] Preferably, the pressing block is in the shape of a rectangular frame and is fixed on the outside of the plug-in shaft, and the pressing block is correspondingly embedded in the inside of the magnetic conductive plate.

[0013] Beneficial effects of the utility model:

[0014] The utility model is provided with a quick-connect device, that is, under the transmission of the screw and the connecting plate, the vertical rods installed at the four corners of the bottom of the connecting plate can be synchronously moved downward to connect and transmit with the connecting grooves opened inside the connectors on both sides, so that the connecting shaft is subjected to the extrusion transmission effect and inserted into the magnetic plate and the coil, and the pressure block installed on the outside is embedded in the magnetic plate to achieve a tightening and reinforced fit, so as to facilitate the rapid combination of the magnetic plates and coils on both sides. Conversely, by rotating the screw to achieve the indirect upward movement of the vertical rods set at the four corners, the plug-in extrusion effect on the connecting shaft will be released, so that the connector can be removed as a whole, and rapid unlocking and disassembly can be achieved, thereby achieving the advantages of convenient disassembly and assembly of the magnetic plates and coils on both sides, and meeting the convenience of combination and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the left-side cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the quick-connect device of the utility model from the left side;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the connector of the utility model;

[0019] Figure 5 It is an enlarged structural diagram of the connector A of the utility model.

[0020] Among them: coil-1, non-magnetic body-2, magnetic conductive plate-3, permanent magnet block-4, lifting ear-5, sling-6, quick-connect device-7, sleeve-71, screw-72, connecting plate-73, support rod-74, vertical rod-75, connector-76, fixing plate-761, plug-in shaft-762, connecting slot-763, and pressing block-764. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0022] See also Figure 1-2 The utility model provides a permanent magnet electromagnet, including a coil 1, a non-magnetic body 2, a magnetic conductive plate 3, a permanent magnet block 4, a lifting ear 5, a sling 6 and a quick-connect device 7. The non-magnetic body 2 is installed in the middle of the coil 1, and magnetic conductive plates 3 are provided on the left and right sides of the outer end of the coil 1, and a permanent magnet block 4 is installed between the lower ends of the magnetic conductive plates 3 on both sides for sucking materials. The upper ends of the magnetic conductive plates 3 on both sides are fixedly connected with two lifting ears 5, and the two pairs of lifting ears 5 are connected to the sling 6 inside, thereby realizing the rapid construction of the magnetic suction lifting structure. A quick-connect device 7 is provided on the outer side of the upper end of the magnetic conductive plate 3.

[0023] Among them, two magnetic conductive plates 3 are arranged correspondingly along the outside of the coil 1, and the coil 1 and the permanent magnet block 4 are installed above and below the two magnetic conductive plates 3 respectively, ensuring the magnetic conductive plates 3 and the coil 1 on both sides to achieve a stable structure of the permanent magnet electromagnet state.

[0024] See also Figure 3 The quick-connect device 7 in this embodiment includes a sleeve 71 correspondingly sleeved on the outer side of the upper ends of the magnetic conductive plates 3 on both sides, a screw 72 correspondingly installed vertically inside the upper end of the sleeve 71, a connecting plate 73 threadedly connected to the lower end of the screw 72 and laterally arranged inside the upper end of the sleeve 71, support rods 74 symmetrically and vertically plugged into the left and right sides of the connecting plate 73 to achieve support and stable movement, a vertical rod 75 vertically and tightly connected to the lower end of the connecting plate 73 to achieve extrusion transmission cooperation, and connectors 76 symmetrically plugged into the left and right sides of the lower end of the sleeve 71 and connected to the lower end of the vertical rod 75, and the connectors 76 on both sides can be connected to the coil 1 and the inside of the magnetic conductive plate 3.

[0025] Specifically, the sleeve 71 is correspondingly sleeved on the upper ends of the magnetic conductive plates 3 on both sides, and plug-in interfaces corresponding to the external plug-in ends of the magnetic conductive plates 3 are opened on both sides of the outer end of the sleeve 71, so that the magnetic conductive plates 3 on both sides and the coil 1 can be quickly combined and docked; the screw 72 is vertically rotated and connected to the middle part of the upper end of the sleeve 71, and the sleeve 71 is correspondingly threadedly connected to the middle part of the connecting plate 73, so that a stable extrusion locking fit can be achieved through the thread transmission effect; the connecting plate 73 is a rectangular plate as a whole and is flatly laid inside the upper end of the sleeve 71, and the four corners of the bottom of the connecting plate 73 are fixed with vertical rods 75 to ensure that the vertical rods 75 provided at the four corners can be plugged and transmitted with the plug-in connectors 76 provided correspondingly on both sides, so as to ensure the firmness of the synchronous plug-in and tightening state of the left and right sides.

[0026] See also Figure 4-5 The connector 76 in this embodiment includes a fixing plate 761 symmetrically embedded in the lower end of the left and right sides of the shell 71, and a plug-in shaft 762 symmetrically plugged into the two ends of the inner side of the fixing plate 761. The plug-in shaft 762 is inserted into the shell 71, the magnetic plate 3 and the coil 1 in sequence, and a connecting groove 763 is correspondingly opened inside the plug-in shaft 762. The position of the connecting groove 763 is opposite to the vertical rod 75, and the transmission surface on one side of the connecting groove 763 is a smooth inclined surface, which is fixedly connected to the outer end of the plug-in shaft 762 on both sides to realize the compression, locking and reinforcement of the fit.

[0027] Further explanation, there are two groups of connectors 76 installed symmetrically, and the overall structure of the two groups of connectors 76 is consistent, ensuring that the two groups of connectors 76 can be driven by the vertical rods 75 set at the four corners to achieve synchronous plug-in, locking and docking use; the pressure block 764 is a rectangular frame as a whole and is fixed on the outside of the plug-in shaft 762, and the pressure block 764 is correspondingly embedded in the inside of the magnetic plate 3, ensuring that the pressure block 764 can assist in improving the firmness of the combined docking of the magnetic plate 3 and the coil 1.

[0028] Here’s how it works:

[0029] When the permanent magnet electromagnet is to be used, it can be connected to the sling 6 of the crane through the lifting ears 5 installed at the top outer ends of the magnetic conductive plates 3 on both sides, so as to realize the rapid formation of the magnetic lifting state. When the permanent magnet electromagnet contacts the material, the coil 1 is not energized, and the magnetic conductive plates 3 on both sides will form a magnetic field working area on the bottom working surface due to the action of the permanent magnet blocks 4 between the lower ends. In this way, the magnetic field working area formed will tightly magnetically attract the material for lifting activities. When unloading, the coil 1 is energized to generate a magnetic field opposite to the magnetic field working surface formed on the bottom working surface. In this way, the bottom magnetic working surface can be short-circuited. At the same time, the magnetic fields of the magnetic conductive plates 3 on both sides and the energized coil 1 generate an internal closed loop, so that the magnetic field strength of the working surfaces of the magnetic conductive plates 3 on both sides is zero, so that the material can automatically fall off, realizing automatic unloading activities.

[0030] In order to facilitate docking and assembly without the use of bolts when assembling the permanent magnet electromagnet, a quick-connect device 7 is provided at the upper end of the magnetic conductive plate 3. That is, after the magnetic conductive plates 3 on both sides are pre-assembled with the coil 1 and the permanent magnet block 4, the casing 71 can be installed to the upper ends of the magnetic conductive plates 3 on both sides, and the plug-in interfaces opened at the left and right lower ends of the casing 71 are opposite to the external docking interfaces of the magnetic conductive plates 3 on both sides. In this way, the connectors 76 can be correspondingly inserted into the plug-in interfaces at the left and right lower ends of the casing 71, so that the plug-in shafts 762 provided inside the connectors 76 are sequentially inserted into the casing 71, the magnetic conductive plates 3 and the coil 1. After the insertion of the two connectors 76 is completed, the screw 72 provided at the upper end of the casing 71 can be rotated. The screw rod 72 is rotated to realize the transmission of the bottom connecting plate 73. In this way, the connecting plate 73 can move downward steadily along the support rods 74 vertically inserted on the left and right sides, and drive the vertical rods 75 provided at the four corners of the bottom to move downward vertically. In this way, the four side vertical rods 75 will simultaneously insert into the connecting grooves 763 provided inside the plug-in parts 76 on both sides, so that the vertical rods 75 and the inclined surfaces inside the connecting grooves 763 are pressed against each other. As a result, the squeezed plug-in shaft 762 can be moved horizontally inward again, and the pressure block 764 installed on the outside of the plug-in shaft 762 can be embedded in the inside of the magnetic plate 3 to achieve a tight and reinforced fit. In this way, the plug-in parts 76 on both sides can be driven and matched synchronously, so that the magnetic plates 3 on both sides and the coil 1 can be assembled quickly and conveniently.

[0031] Subsequently, when disassembly is required, the screw 72 can be rotated again to make the screw 72 realize the upward movement of the connecting plate 73 provided at the bottom. As the connecting plate 73 moves upward, the vertical rods 75 provided at the four corners of the bottom will move out of the corresponding connecting grooves 763 to release the plug-in squeezing and locking effect of the plug-in shaft 762. As a result, the connector 76 can be pulled out of the shell 71 to release the pressing effect of the pressure block 764 on the magnetic plate 3 and release the locking combination of the magnetic plate 3 and the coil 1 by the plug-in shaft 762. In this way, the magnetic plates 3 on both sides can be easily disassembled from the coil 1, thereby achieving the advantages of convenient disassembly and assembly of the magnetic plates 3 and the coil 1 on both sides, and meeting the advantages of convenient combination and maintenance.

[0032] When the locking cam 762 is in the unlock state, the locking cam 763 is locked, and the locking cam 764 is locked, so that the master lock 71 is locked.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A permanent magnet electromagnet, characterized in that: The invention comprises a coil (1), a non-magnetic body (2), a magnetic plate (3), a permanent magnet block (4), a lifting lug (5), a sling (6) and a quick-connect device (7), wherein the non-magnetic body (2) is installed in the middle of the coil (1), the outer side of the coil (1) is connected to the magnetic plate (3), and the lower end of the magnetic plate (3) is equipped with a permanent magnet block (4), the upper side of the magnetic plate (3) is fixedly connected to the lifting lug (5), and the inside of the lifting lug (5) is connected to the sling (6), and the outer side of the upper end of the magnetic plate (3) is provided with a quick-connect device (7). The quick-connect device (7) comprises a housing (71) sleeved on the upper end of the magnetic conductive plate (3), a screw (72) installed inside the housing (71), a connecting plate (73) connected to the lower end of the screw (72), a support rod (74) plugged into the interior of both sides of the connecting plate (73), a vertical rod (75) fastened to the lower end of the connecting plate (73), and a plug-in component (76) plugged into the interior of the housing (71) and connected to the lower end of the vertical rod (75), wherein the plug-in component (76) is connected to the coil (1) and the interior of the magnetic conductive plate (3).

2. A permanent magnet electromagnet according to claim 1, characterized in that: The plug-in connector (76) comprises a fixing plate (761) embedded in the housing (71), a plug-in shaft (762) plugged into the two ends of the inner side of the fixing plate (761), a connecting groove (763) provided in the inner side of the plug-in shaft (762), and a pressing block (764) fixed to the outer side of the plug-in shaft (762).

3. A permanent magnet electromagnet according to claim 1, characterized in that: Two magnetic conductive plates (3) are correspondingly arranged along the outer side of the coil (1), and the coil (1) and the permanent magnet block (4) are respectively installed above and below the two magnetic conductive plates (3).

4. A permanent magnet electromagnet according to claim 1, characterized in that: The sleeve (71) is correspondingly sleeved on the upper ends of the magnetic conductive plates (3) on both sides, and both sides of the outer end of the sleeve (71) are provided with connection points corresponding to the outer sides of the magnetic conductive plates (3).

5. The permanent magnet electromagnet according to claim 1, characterized in that: The screw rod (72) is vertically rotatably connected to the middle portion of the upper end of the casing (71), and the casing (71) is correspondingly threadedly connected to the middle portion of the connecting plate (73).

6. The permanent magnet electromagnet according to claim 1, characterized in that: The connecting plate (73) is in the shape of a rectangular plate and is flatly laid inside the upper end of the casing (71), and the vertical rods (75) are fixed at the four corners of the bottom of the connecting plate (73).

7. A permanent magnet electromagnet according to claim 2, characterized in that: The plug connectors (76) are symmetrically arranged in two groups, and the overall structures of the two groups of plug connectors (76) are consistent.

8. The permanent magnet electromagnet according to claim 2, characterized in that: The pressing block (764) is in the shape of a rectangular frame and is fixedly arranged on the outside of the plug-in shaft (762), and the pressing block (764) is correspondingly embedded in the interior of the magnetic conductive plate (3).

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