CN2237628Y

CN2237628Y - Electromagnet DC-to-AC converting controller for lifting

Info

Publication number: CN2237628Y
Application number: CN 94231352
Authority: CN
Inventors: 王宏禹
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-29
Filing date: 1994-11-29
Publication date: 1996-10-16
Anticipated expiration: 2004-11-29

Abstract

The utility model relates to a lifting electromagnet inversion electric controlling device, which comprises a casing, an automatic air switch, a computer, a fully automatic charger, an accumulator battery and an electromagnetic chuck, wherein, the air automatic switch has tow output terminals, one output terminalis connected with the computer through switch power supply, and the other output terminal is connected with the electromagnetic chuck through a main control loop. A protection loop is respectively connected with the main control loop, and an input and an output interfaces of the computer. The fully automatic charger is connected with the electromagnetic chuck through the accumulator battery. The utility model has the advantages of small size, light weight, no contact and zero maintenance. The utility model has the functions of automatic protection, monitoring and control.

Description

Lifting electromagnet inversion controller for electric consumption

The utility model relates to the electric control field, particularly a kind of inversion controller for electric consumption that is used for lifting electromagnet.

Lifting electromagnet cooperates with various mechanical equipments and is widely used in steel plant, the shipbuilding yard, Heavy Machinery Plant and harbour etc., existing lifting electromagnet mainly comprises magnetic chuck and electric cabinet two parts, for example mainly comprise air switch with introducing the lifting electromagnet that Japan Kobe iron company and French Lan Nuo company technology produce, AC contactor, silicon steel chip three-phase rectifier transformer, separate the three-phase commutation bridge time relay, exciting circuit etc., and outfit automatic charger, battery pack forms the guarantor's magnetic that has a power failure and drops into circuit automatically, its shortcoming is to have adopted the mechanical type link gear, is prone to ablation, bonding, faults such as stuck and disengaging; Owing to adopted a large amount of silicon steel sheets, it is bigger to conduct oneself with dignity, and has increased the load of overhead traveling crane.

The purpose of this utility model provides a kind of lifting electromagnet inversion controller for electric consumption accurate, that volume is little that moves.

The utility model is achieved in that it comprises housing, automatic air-break switch, computing machine, automatic device for charging, and battery pack and magnetic chuck is characterized in that the air automatic switch has two mouths, and a mouth is connected with computing machine by Switching Power Supply; Another mouth is connected with magnetic chuck by main control loop; The protection loop is connected with the interface of main control loop, computing machine input, output respectively, and automatic device for charging is connected with magnetic chuck by battery pack.

The utility model compares with existing lifting electromagnet inversion controller for electric consumption that to have a volume little, in light weight, and contact pointless, non-maintaining advantage have automatic protection, monitoring and controllable function.

Below in conjunction with accompanying drawing the utility model is further described,

Fig. 1 is the circuit block diagram of lifting electromagnet inversion controller for electric consumption,

Fig. 2 is the schematic circuit diagram of lifting electromagnet inversion controller for electric consumption,

Shown in Fig. 1-2, this lifting electromagnet inversion electricity system device comprises housing, automatic air-break switch C46N-3, computer PC 8031, automatic device for charging 2, battery pack 3 and magnetic chuck 4, air automatic switch C45N-3 has two mouths, and mouth is connected with computer PC 8031, also is provided with at the two ends of Switching Power Supply 4N1CK10 that three-phase is disconnected, short-circuit protector 5 by Switching Power Supply 4N1CK10; Another mouth by main control loop 6 be connected with magnetic chuck 4, main control loop 6 is made of three-phase solid-state relay JGX3, three phase rectifier module 6RI, insulation bigrid bipolar transistor 2MBI or IGBT, amorphous state high-frequency power transformer UO-4, rectification module F18-100/1200RD; Protection loop 7 is connected with the interface of main control loop 6, computer PC-8031 input, output respectively, this protection loop 7 is made up of temperature rise protector 8, overcurrent protector 9 and Drive Protecting Circuit 10, automatic device for charging 2 is connected with magnetic chuck 4 by battery pack 3, and magnetic chuck 4 also is connected with degaussing loop 2FI; During work, the automatic air-break switch C45N-3 that slippages at first, computer PC 8031 has signal output the support lower interface 1 of internal cell and at 2 two, make three-phase solid-state relay JGX3 conducting, while Switching Power Supply 4NICK10, three phase rectifier module 6RI work makes it to be reverse into high frequency also for insulated gate transistor 2MBI; Interface 5,6 outputs of computer PC 8031, make driving circuit EXB841 obtain an adjustable pulsewidth, inverter is supplied with two-phase bridge rectification module F18-100/12200RD formation direct current output and 4 work of degaussing loop 2FI supply in parallel magnetic chuck after advancing amorphous state high-frequency high-power transformer B1; When any phase et out of order in the three-phase alternating-current supply, if the interface of computer PC-8,031 3,4 can be received a signal and when three-phase solid-state relay JGX3 power cutoff major loop menopause gate bipolar transistor 2MBI et out of order or overflow constant temperature were risen, Drive Protecting Circuit 8 also can feed back to computer PC 8031 by interface 5 and 6 with signal to be made it to turn-off; When magnetic chuck 4 sudden power, battery pack 3 gives magnetic chuck 4 power supplies, the guarantor's magnetic of implementing to have a power failure.

Claims

1, a kind of lifting electromagnet inversion controller for electric consumption, it comprises housing, automatic air-break switch, computing machine, automatic device for charging, battery pack and magnetic chuck, it is characterized in that: air automatic switch two mouths are arranged, a mouth is connected with computing machine by Switching Power Supply; Another mouth is connected with magnetic chuck by main control loop; The protection loop is connected with the interface of main control loop, computing machine input, output respectively, and automatic device for charging is connected with magnetic chuck by battery pack.

2, lifting electromagnet inversion controller for electric consumption according to claim 1 is characterized in that: main control loop is made of three-phase solid-state relay JGX3, three phase rectifier module 6RI, insulation bigrid bipolar transistor 2MBI or GBT, amorphous state high-frequency power transformer UO-4, rectification module F18-100/1200RD; Computer PC 8031 has signal output the support lower interface 1 of internal cell and at 2 two, makes three-phase solid-state relay JGX3 conducting, Switching Power Supply 4NICK10 simultaneously, and three phase rectifier module 6RI work makes it to be reverse into high frequency also for insulated gate transistor 2MBI; Interface 5,6 outputs of computer PC 8031 make driving circuit EXB841 obtain an adjustable pulsewidth, and inverter is supplied with the output of two-phase bridge rectification module F18-100/1200RD formation direct current after advancing amorphous state high-frequency high-power transformer B1.

3, lifting electromagnet inversion controller for electric consumption according to claim 1 is characterized in that: the protection loop is made up of temperature rise protector, overcurrent protector and Drive Protecting Circuit.