Automatic attracting and releasing lifting electric permanent magnet

Abstract

The utility model relates to a lifting magnet, in particular to an automatic attracting and releasing lifting electric permanent magnet. Comprising an electro-permanent magnet, a trigger device, a manual control panel and a lifting connecting part, a containing chamber is arranged on the upper portion of the electro-permanent magnet, and an electrical control unit is arranged in the containing chamber; the triggering device is arranged at the top of the electro-permanent magnet, the lifting connecting part comprises a hanging bow, the two ends of the hanging bow are connected with the electro-permanent magnet, and external triggering implementation is provided for the triggering device; the triggering device receives external triggering implementation and sends out a triggering signal; the electrical control unit receives the trigger signal, detects the magnetic characteristic state of the electro-permanent magnet, generates magnetic control current to the electro-permanent magnet according to the trigger signal, and changes the magnetic characteristic state of the electro-permanent magnet to enable the electro-permanent magnet to be in a lifting or releasing state; and magnetic poles are arranged on the bottom working surfaces of the electro-permanent magnets. The suction device is simple in structure, safe in suction force, convenient to repair and maintain and capable of automatically sucking and releasing materials.

Description

Technical Field

[0001] The utility model relates to a lifting magnet, in particular to an automatic suction and release lifting electropermanent magnet. Background Art

[0002] A lifting electromagnet is a special type of electromagnet that uses the object to be attracted as its armature. It attracts the object by generating a magnetic field when the coil is energized. The magnet must remain energized during lifting. Currently, common lifting electromagnets are manually controlled, either via a panel or remote control. This results in cumbersome operation, low automation, low efficiency, and high production costs. Therefore, there is an urgent need for an automatic lifting electromagnet that can automatically pick up and release objects and improve work efficiency. Utility Model Content

[0003] In order to solve the above problems, the purpose of this utility model is to provide an automatic suction and placement lifting electropermanent magnet to solve the problems of cumbersome operation, low degree of automation, low work efficiency and high production cost brought about by manual operation, panel operation or remote control of existing lifting electropermanent magnets.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides an automatic suction and release lifting electropermanent magnet, comprising an electropermanent magnet, a trigger device, a manual control panel and a lifting connection component, wherein a containing chamber is arranged on the upper part of the electropermanent magnet, an electrical control unit is arranged in the containing chamber, the trigger device and the lifting connection component are both arranged on the top of the electropermanent magnet, the lifting connection component comprises a hanging bow, the bow portion of the hanging bow is used to be connected with an external lifting device, both ends of the hanging bow are connected with the electropermanent magnet, and provide an external triggering implementation for the trigger device; the trigger device receives the external triggering implementation and sends a trigger signal; the electrical control unit receives the trigger signal sent by the trigger device, detects the magnetic characteristic state of the electropermanent magnet, and generates a magnetic control current for the electropermanent magnet according to the received trigger signal, changes the magnetic characteristic state of the electropermanent magnet, and puts the electropermanent magnet in a lifting state or a releasing state; a magnetic pole is arranged on the bottom working surface of the electropermanent magnet; in the lifting state, the working surface of the magnetic pole presents permanent magnetic characteristics; in the releasing state, the working surface of the magnetic pole is magnetically neutral.

[0006] In one possible implementation, the lifting connection component includes a lifting connection seat, a connecting pin and a lifting bow, wherein the lifting connection seat is fixed to the top of the electropermanent magnet, and the two open ends of the lifting bow are floatingly connected to the lifting connection seat through the connecting pin, and an upper and lower movable space for the connecting pin is set in the lifting connection seat, and the movable space satisfies the full triggering and full separation of the trigger device.

[0007] In one possible implementation, the lifting connection base includes two parallel and spaced-apart bearing plates, and the gap between the two bearing plates enables the hoist bow to slide flexibly therebetween;

[0008] Both ends of the two supporting plates are provided with coaxial waist-shaped through-slot holes, and the two open ends of the lifting bow are provided with through holes for the connecting pin shaft to pass through. The two ends of the connecting pin shaft are respectively accommodated in the corresponding waist-shaped through-slot holes of the two supporting plates, and can move up and down in the waist-shaped through-slot holes.

[0009] In one possible implementation, a contact is provided at an open end of the hoist bow, and the trigger device is located directly below the contact; when the working surface of the magnetic pole contacts the magnetic object to be lifted, the lifting mechanism of the lifting equipment is lifted, causing the connecting pin to slide upward along the waist-shaped through-slot hole, and the contact leaves the trigger device, thereby de-activating the trigger device;

[0010] When the lifting equipment is lowered and released, the connecting pin is driven by the deadweight of the hoisting bow to slide downward along the waist-shaped through slot, and the contact approaches and presses the trigger device to trigger the trigger device.

[0011] In one possible implementation, each triggering of the trigger device excites the electrical control unit to output an excitation magnetomotive force to the electropermanent magnet, thereby changing the magnetic characteristic state maintained by the working surface of the magnetic pole due to the last triggering, and the trigger holding time ensures that the magnetic characteristic state is fully changed.

[0012] In a possible implementation, the triggering mode of the triggering device is proximity photoelectric triggering, contact pressure contact triggering, magnetic switch or proximity switch.

[0013] In one possible implementation, the trigger device is an axle pin sensor composed of a gravity sensor set in the connecting pin shaft, and the axle pin sensor senses the gravity change and implements the trigger function; or, a proximity photoelectric switch, a magnetic control switch or a travel switch is set at the bottom of the connecting pin shaft to implement the single hanging point trigger function.

[0014] In one possible implementation, the manual control panel includes a switching interlock and a manual magnetization and demagnetization control switch, wherein the switching interlock implements the switching between the automatic suction and release mode of the lifting electro-permanent magnet and the manual control mode in an emergency situation; in the manual control mode, the lifting state or release state of the electro-permanent magnet is manually controlled by the manual magnetization and demagnetization control switch.

[0015] In one possible implementation, when the switching chain is switched to the automatic suction and release mode, the function of the trigger device is turned on, and the operation function of the manual magnetization and demagnetization control switch is turned off; when the switching chain is switched to the manual control mode, the function of the trigger device is turned off, and the function of the manual magnetization and demagnetization control switch is turned on.

[0016] In one possible implementation, a status indicator is provided on the top of the electropermanent magnet, and the status indicator is a multi-color constantly-on indicator light; a power interface is provided on the upper part of the electropermanent magnet, and the power interface is connected to an external power supply to provide electrical energy to the electrical control unit and the electropermanent magnet.

[0017] The advantages and beneficial effects of the utility model are as follows: the automatic suction and release of the lifting electropermanent magnet provided by the utility model is driven by the deadweight of the lifting bow after the lifting or lowering release of the lifting mechanism of the lifting equipment, triggering the trigger device. Each triggering of the trigger device stimulates the electrical control unit to output an excitation magnetic motive force to the electropermanent magnet, changing the magnetic characteristic state maintained by the working surface of the magnetic pole due to the last trigger, and the magnetic characteristic state is permanent magnetic characteristic or magnetic neutral, thereby realizing the automatic suction and release function; the utility model has a simple structure, safe suction, and easy repair and maintenance, and can realize automatic suction and release of materials.

[0018] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved 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 This is an axonometric drawing of the utility model's automatic suction and placement lifting electropermanent magnet;

[0022] Figure 2 This is a front view of the automatic suction and release lifting electro-permanent magnet of the utility model;

[0023] Figure 3 It is a left view of the automatic suction and release lifting electropermanent magnet of the utility model.

[0024] In the figure: 1-electropermanent magnet, 101-chamber, 102-electrical control unit, 103-power interface, 104-magnetic pole, 105-status indicator light, 2-trigger device, 3-manual control panel, 301-switching interlock, 4-lifting connection seat, 401-waist-shaped through slot hole, 5-connecting pin, 6-hanging bow, 601-contact. DETAILED DESCRIPTION

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] 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.

[0027] See also Figures 1 to 3 As shown, the utility model provides an automatic suction and release lifting electropermanent magnet, comprising an electropermanent magnet 1, a trigger device 2, a manual control panel 3 and a lifting connection component, wherein a chamber 101 is provided on the upper part of the electropermanent magnet 1, an electrical control unit 102 is provided in the chamber 101, and a power interface 103 is provided on the upper part of the electropermanent magnet 1. The power interface 103 is connected to an external power supply to provide electrical energy to the electrical control unit 102 and the electropermanent magnet 1. The trigger device 2 and the lifting connection component are arranged on the top of the electropermanent magnet 1. The lifting connection component includes a bow 6. The bow part of the bow 6 is used to connect to the lifting mechanism of the external lifting equipment. The open ends of the bow 6 are connected to the electropermanent magnet 1 and provide external triggering implementation for the trigger device 2; the trigger device 2 receives the external triggering implementation and sends a trigger signal to the electrical control unit 102; the electrical control unit 102 receives the trigger signal sent by the trigger device 2, detects the magnetic characteristic state of the electropermanent magnet 1, and generates a magnetic control current for the electropermanent magnet 1 according to the received trigger signal, changing the magnetic characteristic state of the electropermanent magnet 1 to the electropermanent magnet 1 in the lifting state or the release state; a magnetic pole 104 is set on the working surface of the bottom of the electropermanent magnet 1. In the lifting state, the working surface of the magnetic pole 104 has permanent magnetic characteristics, and the other surfaces are magnetically neutral; in the release state, the working surface and other surfaces of the magnetic pole 104 are magnetically neutral.

[0028] See also Figures 1 to 3As shown, in the embodiment of the present invention, the lifting connection component includes a lifting connection seat 4, a connecting pin 5 and a lifting bow 6, wherein the lifting connection seat 4 is fixed to the top of the electropermanent magnet 1, and the two open ends of the lifting bow 6 are floatingly connected to the lifting connection seat 4 through the connecting pin 5, which is more stable than the single-point connection of the prior art. An upper and lower movable space for the connecting pin 5 is set in the lifting connection seat 4, and the movable space satisfies the full triggering and full separation of the trigger device 2.

[0029] In the embodiment of the present invention, the lifting connection seat 4 includes two parallel and spaced supporting plates, the gap between the two supporting plates can enable the bow 6 to slide flexibly therebetween; both ends of the two supporting plates are provided with coaxial waist-shaped through slots 401, see Figure 2 As shown. Both open ends of the lifting bow 6 are provided with through-holes for the connecting pin 5 to pass through. The inner diameter of the through-holes is adapted to the outer diameter of the connecting pin 5, and the spacing between the through-holes is adapted to the spacing between the two waist-shaped through-slots 401 of the lifting connector 4. The axis of the waist-shaped through-slots 401 is aligned with the axis of the through-holes provided at the two open ends of the lifting bow 6. After the connecting pin 5 passes through the through-holes at the ends of the lifting bow 6, the two ends of the connecting pin 5 are respectively accommodated in the corresponding waist-shaped through-slots 401 of the two supporting plates, and the connecting pin 5 can move up and down within the waist-shaped through-slots 401, fixing the relative position of the connecting pin 5 and the lifting bow 6.

[0030] Further, see Figure 3 As shown, a contact 601 is provided at an open end of the lifting bow 6, and the trigger device 2 is located directly below the contact 601; when the working surface of the magnetic pole 104 contacts the magnetic object to be lifted, the lifting mechanism of the lifting equipment is lifted, so that the connecting pin shaft 5 slides upward along the waist-shaped through-slot hole 401, and the contact 601 leaves the trigger device 2, thereby releasing the trigger of the trigger device 2; or after the lifting mechanism of the lifting equipment is lowered and released, the connecting pin shaft 5 is driven by the dead weight of the lifting bow 6 to slide downward along the waist-shaped through-slot hole 401, and the contact 601 approaches and presses the trigger device 2, thereby triggering the trigger device 2.

[0031] Furthermore, each trigger of the trigger device 2 excites the electrical control unit 102 to output an excitation magnetomotive force to the electropermanent magnet 1, thereby changing the magnetic characteristic state maintained by the working surface of the magnetic pole 104 due to the last trigger, and the magnetic characteristic state is permanent magnetic or magnetically neutral, and the trigger holding time ensures that the magnetic characteristic state is fully changed.

[0032] Specifically, the triggering mode of the triggering device 2 is proximity photoelectric triggering, contact pressure contact triggering, magnetic switch or proximity switch.

[0033] Alternatively, trigger device 2 can be a pin sensor composed of a gravity sensor installed in connecting pin 5. This pin sensor uses gravity changes to trigger the function. Alternatively, trigger device 2 can be a proximity photoelectric switch, magnetic switch, or travel switch installed at the bottom of connecting pin 5, implementing a single-hanging-point triggering function. Single-hanging-point triggering is achieved through a bow-shaped bottom trigger. The bow 6 adopts a bow-shaped structure, allowing the hook to be directly inserted for lifting, avoiding the certain degree of tipping problem associated with other chain or sling systems.

[0034] See also Figure 3 As shown, in the embodiment of the present invention, the manual control panel 3 includes a switching interlock 301 and a manual magnetization and demagnetization control switch, wherein the switching interlock 301 implements the switching between the automatic attraction and release mode of the active automatic attraction and release of the lifting electropermanent magnet and the manual control mode in an emergency situation; in the manual control mode, the lifting state or release state of the electropermanent magnet 1 is manually controlled by the manual magnetization and demagnetization control switch.

[0035] Specifically, when the switching chain 301 is switched to the automatic suction and release mode, the function of the trigger device 2 is turned on, and the operation function of the manual magnetization and demagnetization control switch is turned off; when the switching chain 301 is switched to the manual control mode, the function of the trigger device 2 is turned off, and the function of the manual magnetization and demagnetization control switch is turned on.

[0036] Furthermore, a status indicator 105 is provided on the top of the electropermanent magnet 1. The status indicator 105 is a multi-color, constantly lit indicator light. The multi-color, constantly lit indicator light includes a green indicator light, a yellow indicator light, and a red indicator light. The green indicator light indicates that the working surface of the magnetic pole 104 is in a permanent magnetic state, the yellow indicator light indicates that the working surface of the magnetic pole 104 is in a magnetic neutral state, and the red indicator light indicates a fault state.

[0037] The working principle of the automatic suction and release lifting permanent magnet provided by the utility model is:

[0038] The lifting connecting seat 4 is fixed to the top of the electropermanent magnet 1 and is connected to the electropermanent magnet 1 as a whole. The two open ends of the lifting bow 6 are connected to the lifting connecting seat 4 through the connecting pin 5. A certain activity space is set on the lifting connecting seat 4 for the connecting pin 5 to move up and down. The activity space meets the requirements of sufficient triggering and sufficient separation of the trigger device 2.

[0039] When the working surface of the magnetic pole 104 contacts the magnetic object to be lifted, with the help of the lifting mechanism of the lifting equipment, the connecting pin shaft 5 is guided to slide upward along the waist-shaped through slot hole 401 for a limited distance, and the contact 601 leaves the trigger device 2, thereby releasing the trigger device 2; or with the help of the lifting mechanism of the lifting equipment, the deadweight of the lifting bow 6 is driven to lower and release, and the connecting pin shaft 5 is guided to slide downward along the waist-shaped through slot hole 401 for a limited distance, and the contact 601 approaches and presses the trigger device 2, thereby triggering the trigger device 2.

[0040] The trigger device 2 receives an external trigger signal and transmits the external trigger signal to the electrical control unit 102. The electrical control unit 102 detects the magnetic property state of the electropermanent magnet 1 and generates a magnetic control current for the electropermanent magnet 1, thereby changing the magnetic property state of the electropermanent magnet 1 so that the electropermanent magnet 1 is in a lifting state or a release state. A magnetic pole 104 is provided on the bottom working surface of the electropermanent magnet 1. In the lifting state, the working surface of the magnetic pole 104 exhibits permanent magnetic properties, and the other surfaces are magnetically neutral. In the release state, the working surface and other surfaces of the magnetic pole 104 are magnetically neutral.

[0041] The automatic suction and release lifting electropermanent magnet provided by the utility model is driven by the dead weight of the lifting bow after the lifting or lowering release of the lifting mechanism of the lifting equipment, triggering the trigger device. Each triggering of the trigger device stimulates the electrical control unit to output excitation magnetomotive force to the electropermanent magnet, changing the magnetic characteristic state maintained by the working surface of the magnetic pole due to the last trigger, and the magnetic characteristic state is permanent magnetic characteristic or magnetic neutral, thereby realizing the automatic suction and release function. The utility model has a simple structure, safe suction, and easy repair and maintenance, and can realize automatic suction and release of materials.

[0042] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An automatic suction and release lifting permanent magnet, characterized in that: The invention comprises an electropermanent magnet (1), a trigger device (2), a manual control panel (3) and a lifting connection component, wherein a chamber (101) is provided on the upper part of the electropermanent magnet (1), an electrical control unit (102) is provided in the chamber (101), the trigger device (2) and the lifting connection component are both provided on the top of the electropermanent magnet (1), and the lifting connection component comprises a hanging bow (6), the bow portion of the hanging bow (6) is used to connect with an external lifting device, the two ends of the hanging bow (6) are connected to the electropermanent magnet (1), and provide an external triggering implementation for the trigger device (2); the trigger device (2) receives an external The trigger is implemented and a trigger signal is sent; the electrical control unit (102) receives the trigger signal sent by the trigger device (2), detects the magnetic characteristic state of the electropermanent magnet (1), and generates a magnetic control current for the electropermanent magnet (1) according to the received trigger signal, thereby changing the magnetic characteristic state of the electropermanent magnet (1) so that the electropermanent magnet (1) is in a lifting state or a release state; a magnetic pole (104) is provided on the bottom working surface of the electropermanent magnet (1); in the lifting state, the working surface of the magnetic pole (104) exhibits permanent magnetic characteristics; in the release state, the working surface of the magnetic pole (104) exhibits magnetic neutrality.

2. The automatic suction and release lifting electropermanent magnet according to claim 1, characterized in that: The lifting connection component comprises a lifting connection seat (4), a connecting pin (5) and a hanging bow (6), wherein the lifting connection seat (4) is fixed to the top of the electropermanent magnet (1), and the two open ends of the hanging bow (6) are floatingly connected to the lifting connection seat (4) through the connecting pin (5), and an upper and lower movable space of the connecting pin (5) is set in the lifting connection seat (4), and the movable space satisfies the full triggering and full separation of the trigger device (2).

3. The automatic suction and release lifting electropermanent magnet according to claim 2, characterized in that: The lifting connection seat (4) comprises two parallel and spaced bearing plates, the gap between the two bearing plates enabling the hoisting bow (6) to slide flexibly therebetween; Both ends of the two supporting plates are provided with coaxial waist-shaped through-slot holes (401), and both open ends of the hanging bow (6) are provided with through-holes for the connecting pin shaft (5) to pass through. The two ends of the connecting pin shaft (5) are respectively accommodated in the waist-shaped through-slot holes (401) corresponding to the two supporting plates and can move up and down in the waist-shaped through-slot holes (401).

4. The automatic suction and release lifting electropermanent magnet according to claim 3, characterized in that: A contact (601) is provided at an open end of the hoist bow (6), and the trigger device (2) is located directly below the contact (601); when the working surface of the magnetic pole (104) contacts the magnetic object to be lifted, the connecting pin (5) slides upward along the waist-shaped through-slot hole (401) with the help of the lifting equipment, and the contact (601) leaves the trigger device (2), thereby releasing the trigger of the trigger device (2); When the lifting equipment is lowered and released, the connecting pin shaft (5) is driven by the deadweight of the hoisting bow (6) to slide downward along the waist-shaped through slot hole (401), and the contact (601) approaches and presses the trigger device (2), thereby triggering the trigger device (2).

5. The automatic suction and release lifting electropermanent magnet according to claim 2, characterized in that: Each triggering of the trigger device (2) excites the electrical control unit (102) to output an excitation magnetomotive force to the electropermanent magnet (1), thereby changing the magnetic characteristic state of the working surface of the magnetic pole (104) maintained due to the last triggering, and the triggering holding time ensures that the magnetic characteristic state is fully changed.

6. The automatic suction and release lifting electropermanent magnet according to claim 2, characterized in that: The triggering mode of the triggering device (2) is proximity photoelectric triggering, contact pressure contact triggering, magnetic sensitive switch or proximity switch.

7. The automatic suction and release lifting electropermanent magnet according to claim 2, characterized in that: The trigger device (2) is a pin sensor composed of a gravity sensor arranged in the connecting pin shaft (5), and the pin sensor senses the gravity change to implement the trigger function; or a proximity photoelectric switch, a magnetic control switch or a travel switch is arranged at the bottom of the connecting pin shaft (5) to implement the single suspension point trigger function.

8. The automatic suction and release lifting electropermanent magnet according to claim 1, characterized in that: The manual control panel (3) includes a switching chain (301) and a manual magnetization and demagnetization control switch, wherein the switching chain (301) implements switching between an automatic suction and release mode for automatically sucking and releasing the lifting electro-permanent magnet and a manual control mode in an emergency situation; in the manual control mode, the lifting state or release state of the electro-permanent magnet (1) is manually controlled by the manual magnetization and demagnetization control switch.

9. The automatic suction and release lifting electropermanent magnet according to claim 8, characterized in that: When the switching chain (301) is switched to the automatic suction and release mode, the function of the trigger device (2) is turned on, and the operation function of the manual magnetization and demagnetization control switch is turned off; when the switching chain (301) is switched to the manual control mode, the function of the trigger device (2) is turned off, and the function of the manual magnetization and demagnetization control switch is turned on.

10. The automatic suction and release lifting electropermanent magnet according to claim 1, characterized in that: A status indicator (105) is provided on the top of the electropermanent magnet (1), and the status indicator (105) is a multi-color constantly-on indicator light; a power supply interface (103) is provided on the upper portion of the electropermanent magnet (1), and the power supply interface (103) is connected to an external power supply to provide electrical energy to the electrical control unit (102) and the electropermanent magnet (1).

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