Electric permanent magnet power-off protection mechanism of truss crown block
By installing components such as battery packs, inverters, and static switches on the gantry crane, the safety hazards of electro-permanent magnets when power is lost are solved, enabling continuous magnetic power supply and safety alerts for electro-permanent magnets in the event of a power outage, thus ensuring the stability and safety of the hoisting process.
Patent Information
- Application Number
- CN202422918121.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-27
AI Technical Summary
When the electro-permanent magnet of the gantry crane suddenly loses power, the metal objects being hoisted will fall, posing a safety hazard.
The system utilizes components such as a battery pack, inverter, and static switch within the chassis to ensure that the electro-permanent magnet retains its magnetism even when power is off. The inverter converts the DC power from the battery pack into AC power to supply the permanent magnet, and a microprocessor-controlled alarm device alerts staff.
This avoids the problem of items falling due to the sudden loss of magnetic force of the electro-permanent magnet, reduces safety hazards in hoisting operations, and ensures the stability and safety of the hoisting process.
Smart Images
Figure CN223561071U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to truss overhead traveling crane field especially a kind of electric permanent magnet power-off protection mechanism of truss overhead traveling crane. BACKGROUND
[0002] Truss overhead traveling crane is a common hoisting equipment, which is mainly composed of truss as the main bearing structure, usually made of section steel or steel pipe welding, forming stable space structure, the structure form is lighter in weight, but has higher strength and rigidity, can bear larger load.
[0003] At present, truss overhead traveling crane is usually used in the process of hoisting goods, the electromagnetic force of electric permanent magnet is used to magnetically attract and hoist metal goods, but the current electric permanent magnet does not have power-off protection structure after power-off, when power-off suddenly, electric permanent magnet will lose magnetic force, and the metal goods hoisted below electric permanent magnet will also fall, then there is a security risk in hoisting work, therefore, we provide a kind of electric permanent magnet power-off protection mechanism of truss overhead traveling crane to solve the above problems. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a kind of electric permanent magnet power-off protection mechanism of truss overhead traveling crane to solve the problems raised in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of electric permanent magnet power-off protection mechanism of truss overhead traveling crane, including machine case, the bottom surface of the machine case is equipped with electric permanent magnet block, the top of the machine case is equipped with connecting plate, the inner bottom wall of the machine case is respectively fixedly installed with battery pack and charger, the inner bottom wall of the machine case is respectively fixedly installed with inverter, static switch and microprocessor, the front of the machine case is fixedly installed with alarm flashing light, the front of the machine case is fixedly installed with voice broadcaster, the outer surface of the electric permanent magnet block is fixedly connected with two fixed plates, the top surface of the machine case is fixedly installed with two groups of springs, the top of two groups of springs is fixedly connected with the bottom surface of connecting plate, the bottom surface of the connecting plate is equipped with two groups of connecting holes, the left side of the machine case is equipped with two groups of threading holes.
[0007] In further embodiments, the outer surface of two fixed plates is equipped with two groups of fixed holes, and a group of fixed screws is arranged below each fixed plate.
[0008] In further embodiments, the bottom surface of the machine case is equipped with two groups of threaded fixing grooves, and the outer surface of two fixed screws is respectively matched with the inner wall of two threaded fixing grooves.
[0009] In further embodiments, the outer surface of the case is provided with two limiting grooves, the inner walls of the two limiting grooves are both connected with limiting blocks in a sliding mode, and the side faces of the two limiting blocks close to each other are both fixedly connected with the outer surface of the connecting plate.
[0010] In further embodiments, the upper surface of the case is fixedly connected with two groups of dampers, and the top ends of the two groups of dampers are both fixedly connected with the bottom surface of the connecting plate.
[0011] In further embodiments, the static switch is electrically connected with the microprocessor through wires, and the microprocessor is electrically connected with the alarm flashing lamp and the voice broadcaster respectively through wires.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] The utility model discloses a truss overhead traveling crane's electric permanent magnet power-off protection mechanism, including case, electric permanent magnet block, connecting plate, battery pack, charger, inverter, static switch and microprocessor, the bottom surface of the case is fixedly connected with the connecting plate, the bottom surface of the connecting plate is fixedly connected with the battery pack, the bottom surface of the connecting plate is fixedly connected with the charger, the bottom surface of the connecting plate is fixedly connected with the inverter, the bottom surface of the connecting plate is fixedly connected with the static switch, and the bottom surface of the connecting plate is fixedly connected with the microprocessor. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the front view three-dimensional structure schematic diagram of truss overhead traveling crane's electric permanent magnet power-off protection mechanism.
[0015] Figure 2 It is the bottom view three-dimensional structure schematic diagram of truss overhead traveling crane's electric permanent magnet power-off protection mechanism.
[0016] Figure 3 It is the exploded structure schematic diagram of case and electric permanent magnet block in truss overhead traveling crane's electric permanent magnet power-off protection mechanism.
[0017] Figure 4 It is the plan view of case in truss overhead traveling crane's electric permanent magnet power-off protection mechanism.
[0018] In the drawing: 1, case, 2, electric permanent magnet block, 3, connecting plate, 4, battery pack, 5, charger, 6, inverter, 7, static switch, 8, microprocessor, 9, alarm flashing lamp, 10, voice broadcaster, 11, fixed plate, 12, fixed hole, 13, threaded fixing groove, 14, fixed screw, 15, spring, 16, damper, 17, connecting hole, 18, limiting groove, 19, limiting block, 20, threading hole. DETAILED DESCRIPTION
[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0021] Please refer to Figures 1-4The utility model discloses a kind of electric permanent magnet power-off protection mechanisms of truss overhead travelling crane, including case 1, the bottom surface of case 1 is equipped with electric permanent magnet block 2, the top of case 1 is equipped with connecting plate 3, the inner bottom wall of case 1 is respectively fixedly installed with battery pack 4 and charger 5, the inner bottom wall of case 1 is respectively fixedly installed with inverter 6, static switch 7 and microprocessor 8, the front of case 1 is fixedly installed with alarm flashing light 9, the front of case 1 is fixedly installed with voice broadcaster 10, the outer surface of electric permanent magnet block 2 is fixedly connected with two fixed plates 11, the upper surface of case 1 is fixedly installed with two groups of springs 15, the top of two groups of springs 15 is fixedly connected with the bottom surface of connecting plate 3, the bottom surface of connecting plate 3 is equipped with two groups of connecting holes 17, the left side of case 1 is equipped with two groups of threading holes 20, the function of charger 5 is that alternating current is converted into direct current suitable for battery pack 4 charging, the main role of inverter 6 is that direct current output by battery pack 4 is converted into alternating current after power failure, static switch 7 is the key component in emergency power supply system, for quick switching between commercial power and emergency power supply, when commercial power is normal, it will connect load to commercial power;When commercial power fails, it can switch load to emergency power supply in extremely short time, ensure that load equipment is not affected by power failure, microprocessor 8 can monitor various parameters such as commercial power state, battery pack 4's electric quantity, inverter 6's output state, and control the work of charger 5, inverter 6 and static switch 7 according to these parameters.
[0022] In further embodiments, the outer surface of the two fixed plates 11 is equipped with two groups of fixed holes 12, the lower side of the two fixed plates 11 is equipped with a group of fixed screws 14, the bottom surface of the case 1 is equipped with two groups of threaded fixing grooves 13, the outer surface of the two groups of fixed screws 14 is respectively matched with the inner wall of the two groups of threaded fixing grooves 13, the outer surface of the case 1 is equipped with two limiting grooves 18, the inner wall of the two limiting grooves 18 is slidably connected with a limiting block 19, the side surface of the two limiting blocks 19, which is close to each other, is fixedly connected with the outer surface of the connecting plate 3, through the cooperation of the fixed hole 12, the fixed screw 14 and the threaded fixing groove 13, the electric permanent magnet block 2 can be firmly installed at the bottom of the case 1, through the cooperation of the limiting groove 18 and the limiting block 19, the limiting effect between the case 1 and the connecting plate 3 is achieved, and the hoisting movement is more stable.
[0023] In further embodiments, the upper surface of the case 1 is fixedly connected with two groups of dampers 16, the top of the two groups of dampers 16 is fixedly connected with the bottom surface of the connecting plate 3, the static switch 7 is electrically connected with the microprocessor 8 through wires, the microprocessor 8 is electrically connected with the alarm flashing light 9 and the voice broadcaster 10 through wires respectively, through the cooperation of the damper 16 and the spring 15, buffering can be carried out when metal objects are magnetically attracted and hoisted, and the collision during hoisting can be reduced, through the setting of the microprocessor 8, the alarm flashing light 9 and the voice broadcaster 10 can be controlled to issue sound and light prompt when power failure.
[0024] The working principle of the utility model is: first, the device is connected with the truss crane through the connecting plate 3 and the connecting hole 17, then the device is connected with the power supply, when the electric permanent magnet block 2 is suddenly powered off, the DC power output by the storage battery set 4 can be converted into AC power through the inverter 6, and the electric permanent magnet block 2 can continue to provide power, so that the electric permanent magnet block 2 can maintain its magnetism for a period of time, and the hoisted goods will not fall immediately, then the voice broadcaster 10 and the alarm flashing lamp 9 are used to sound and light prompt the workers, so as to supply power in time.
[0025] It is apparent to those skilled in the art that the utility model is not limited to the details of the exemplary embodiments described above, but that the utility model can be implemented in other concrete forms without departing from the spirit or essential characteristics of the utility model. Therefore, the embodiments should be considered as exemplary and not limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the utility model. Any reference signs in the claims should not be considered as limiting the claims to which they relate.
[0026] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.
Claims
1. An electro-permanent magnet power-off protection mechanism for a truss crane, characterized in that: The device includes a chassis (1), on the bottom surface of which is provided an electro-permanent magnet block (2), and on the top surface of which is provided a connecting plate (3). A battery pack (4) and a charger (5) are fixedly installed on the inner bottom wall of the chassis (1). An inverter (6), a static switch (7), and a microprocessor (8) are fixedly installed on the inner bottom wall of the chassis (1). An alarm flashing light (9) is fixedly installed on the front of the chassis (1). A voice broadcaster (10) is fixedly installed on the front of the chassis (1). Two fixing plates (11) are fixedly connected to the outer surface of the electro-permanent magnet block (2). Two sets of springs (15) are fixedly installed on the upper surface of the chassis (1). The top ends of the two sets of springs (15) are fixedly connected to the bottom surface of the connecting plate (3). Two sets of connecting holes (17) are opened on the bottom surface of the connecting plate (3). Two sets of wire holes (20) are opened on the left side of the chassis (1).
2. The electro-permanent magnet power-off protection mechanism for a truss crane according to claim 1, characterized in that: Two sets of fixing holes (12) are provided on the outer surface of the two fixing plates (11), and a set of fixing screws (14) are provided on the bottom of the two fixing plates (11).
3. The electro-permanent magnet power-off protection mechanism for a truss crane according to claim 2, characterized in that: The bottom surface of the chassis (1) is provided with two sets of threaded fixing grooves (13), and the outer surfaces of the two sets of fixing screws (14) are respectively adapted to the inner walls of the two sets of threaded fixing grooves (13).
4. The electro-permanent magnet power-off protection mechanism for a truss crane according to claim 1, characterized in that: Two limiting grooves (18) are provided on the outer surface of the chassis (1). The inner walls of the two limiting grooves (18) are slidably connected to limiting blocks (19). The side of the two limiting blocks (19) that are close to each other are fixedly connected to the outer surface of the connecting plate (3).
5. The electro-permanent magnet power-off protection mechanism for a truss crane according to claim 1, characterized in that: Two sets of dampers (16) are fixedly connected to the upper surface of the chassis (1), and the top of the two sets of dampers (16) are fixedly connected to the bottom surface of the connecting plate (3).
6. The electro-permanent magnet power-off protection mechanism for a truss crane according to claim 1, characterized in that: The static switch (7) is electrically connected to the microprocessor (8) via a wire, and the microprocessor (8) is electrically connected to the alarm flashing light (9) and the voice broadcaster (10) via wires respectively.