CN216512590U

CN216512590U - Special intelligent integrative electrical control cabinet for loop wheel machine of stage

Info

Publication number: CN216512590U
Application number: CN202123381409.7U
Authority: CN
Inventors: 白彦斌; 侯俊杰; 王斌; 张秀蓉; 王晶; 祁虎强; 何鹏志; 白宝栋; 韩旭润
Original assignee: Big Stage Of Gansu Engineering Technology Engineering Co ltd
Current assignee: Big Stage Of Gansu Engineering Technology Engineering Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-13
Anticipated expiration: 2031-12-30

Abstract

The utility model provides an electric control cabinet for an intelligent integrated crane special for a stage, and belongs to the technical field of mechanical control of the stage. This electrical control cabinet includes the cabinet body, and cabinet body front side is equipped with U looks, V looks, W looks three-phase power indicator, decline button, rise button, local/remote change over switch, and cabinet body inside is equipped with brake resistance, converter, relay KA2, relay KA3, terminal row, main loop contactor KM1, main loop contactor KM2, relay KA1, circuit breaker, relay KA0 and switching power supply, cabinet body front side still is equipped with the cabinet lock. The electric control cabinet for the stage-dedicated intelligent integrated crane is a local control mode independent of a PLC control system, and avoids the condition that equipment cannot act due to the fault of the PLC control system.

Description

Special intelligent integrative electrical control cabinet for loop wheel machine of stage

Technical Field

The utility model belongs to the technical field of mechanical control of stages, and particularly relates to an electric control cabinet for an intelligent integrated crane special for a stage.

Background

In recent years, with the continuous enhancement of the economic strength of China, the continuous improvement of the living standard of people and the continuous increase of the demand on cultural art, the stage industry enters a brand-new period. The application of stage machines is also gradually diversified, and the stage machines are not only limited to traditional theaters, but also gradually applied to various entertainment venues such as show rooms, bars, hotels and the like. Therefore, in order to meet the market environment requirements, stage mechanical equipment is continuously updated and iterated, and the stage mechanical equipment is developed in the direction of stronger adaptability, higher expansibility, easier installation and wiring, higher reliability and stronger safety.

The traditional stage mechanical equipment bench equipment comprises a large curtain, a suspender, a lamp post, a false platform opening, a light cage and the like, most of the equipment is lifted by a plurality of lifting points through a steel wire rope reel, and in a stage mechanical control system, unified dispatching can only be realized through a main control console, a mobile control console and the like, when the control system or communication fails, all stage mechanical equipment can not act, and the control system is in a completely paralyzed state.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide an electric control cabinet for a special intelligent integrated stage crane, aiming at the defects or shortcomings in the prior art, and solving the problem that the stage mechanical equipment cannot be locally scheduled and controlled to operate after being separated from a PLC control system.

In order to achieve the purpose, the electric control cabinet for the intelligent integrated crane special for the stage comprises a cabinet body, wherein a U-phase, V-phase and W-phase three-phase power indicator lamp, a descending button, an ascending button and a local/remote change-over switch are arranged on the front side of the cabinet body, and a brake resistor, a frequency converter, a relay KA2, a relay KA3, a terminal bar, a main loop contactor KM1, a main loop contactor KM2, a relay KA1, a circuit breaker, a relay KA0 and a switching power supply are arranged in the cabinet body; the brake resistor is a matched element of the frequency converter, the brake resistor is connected with a brake unit terminal of the frequency converter, the relay KA2 and the relay KA1 are respectively connected with an X3 terminal of the frequency converter and used for controlling a motor band-type brake, the relay KA3 is used for inputting a rope loosening signal and is connected with a 16-number point of an X4 terminal of the frequency converter, the upper end of a terminal row is connected with the frequency converter, the lower end of the terminal row is connected with a U-phase power indicator, a V-phase power indicator and a W-phase power indicator, a descending button, an ascending button and a binding post of a local/remote change-over switch through a lead, a main loop contactor KM1 is connected between the frequency converter and a motor of the intelligent integrated crane, the main loop contactor KM2 is connected between a main loop contactor KM1 and the motor band-type brake and used for controlling the on-off of a motor band-type brake loop, a breaker is connected with a three-phase lead-in end of the frequency converter and used for controlling the power of the frequency converter, the relay KA0 is connected with a +24V terminal of an X8 of the frequency converter, the switch power supply is used for controlling an enabling signal of the frequency converter, the input end of the switch power supply is connected with 220V alternating current, the output end of the switch power supply is direct current 24V, and the switch power supply is used for supplying power to the relay KA 3.

Preferably, in a preferred embodiment of the present invention, the frequency converter has an incremental encoder input interface, a PROFINET or PROFIBUS-DP communication interface, and a digital input/output terminal.

Preferably, in a preferred technical solution of the present invention, a cabinet door lock is further disposed at a front side of the cabinet body.

Compared with the prior art, the utility model has the beneficial technical effects that as the technical scheme is adopted: the electric control cabinet for the stage-dedicated intelligent integrated crane is a local control mode independent of a PLC control system, and the condition that equipment cannot act due to the fault of the PLC control system is avoided.

Drawings

Fig. 1 is a schematic perspective view of an electrical control cabinet for an intelligent integrated stage crane according to an embodiment of the present invention;

fig. 2 is a schematic plan view of an inner cabinet of an electric control cabinet for the stage-specific intelligent integrated crane according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram of an electrical control cabinet for the stage-specific intelligent integrated crane according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a partial enlarged view at B in FIG. 3;

FIG. 6 is an enlarged view of a portion of FIG. 3 at C;

FIG. 7 is an enlarged view of a portion of FIG. 3 at D;

FIG. 8 is an enlarged view of a portion of FIG. 3 at E;

reference numerals: the intelligent control system comprises 1-U-phase, V-phase and W-phase power indicator lamps, 2-descending buttons, 3-cabinet door locks, 4-ascending buttons, 5-local/remote change-over switches, 6-brake resistors, 7-frequency converters, 8-relays KA2, 9-relays KA3, 10-terminal rows, 11-main loop contactors KM1, 12-main loop contactors KM2, 13-relays KA1, 14-circuit breakers, 15-relays KA0 and 16-switching power supplies.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to preferred embodiments.

Examples

Referring to fig. 1-8, the electric control cabinet for the intelligent integrated stage crane of this embodiment includes a cabinet body, a U-phase, V-phase, W-phase three-phase power indicator, a down button, an up button, and a local/remote change-over switch are disposed on the front side of the cabinet body, and a brake resistor, a frequency converter, a relay KA2, a relay KA3, a terminal strip, a main circuit contactor KM1, a main circuit contactor KM2, a relay KA1, a circuit breaker, a relay KA0, and a switching power supply are disposed inside the cabinet body; the frequency converter is provided with an incremental encoder input interface, a PROFINET or PROFIBUS-DP communication interface and a digital quantity input/output terminal, a Brake resistor is a matched element of the frequency converter, the Brake resistor is connected with a Brake unit (Brake Chopper) terminal of the frequency converter, a relay KA2 and a relay KA1 are respectively connected with an X3 terminal of the frequency converter and used for controlling a motor band-type Brake, a relay KA3 is used for inputting a rope loosening signal and is connected with a 16-point of an X4 terminal of the frequency converter, the upper end of a terminal row is connected with the frequency converter, the lower end of the terminal row is connected with a U-phase, V-phase and W-phase power indicator lamp, a descending button, an ascending button and a binding post of a local/remote change-over switch through leads, a main loop contactor KM1 is connected between the frequency converter and a motor of the intelligent integrated crane, a main loop contactor KM2 is connected between a main loop contactor KM1 and the motor band-type Brake and used for controlling the on-off of the motor band-type Brake loop, the circuit breaker is connected to a three-phase incoming line end of the frequency converter and used for controlling a power supply of the frequency converter, the relay KA0 is connected to a +24V terminal of an X8 of the frequency converter and used for controlling an enabling signal of the frequency converter, the input end of the switch power supply is connected with 220V alternating current, the output is direct current 24V, and the relay KA3 is powered; and a cabinet door lock is also arranged on the front side of the cabinet body.

The utility model is designed and realized based on a distributed control principle, an intelligent integrated crane, a PLC (programmable logic controller), a human-computer interface and an electrical control cabinet form a stage mechanical control system, the PLC is in communication connection with the human-computer interface through an industrial Ethernet, the PLC is in communication connection with the intelligent integrated crane through PROFINET or PROFIBUS-DP, the local control of the intelligent integrated crane is realized by the PLC function of a frequency converter, and the remote control is realized by Siemens PLC programming. The intelligent integrated crane combines a driver and motors, and each motor is provided with a separate local electric control cabinet for local control. The intelligent integrated crane can be used independently as single equipment, and a plurality of intelligent integrated cranes can be placed in the same control system for unified scheduling. When a plurality of intelligent integrated cranes are needed, communication can be carried out through PROFINET or PROFIBUS-DP, and the intelligent integrated cranes only need to be fixed to corresponding positions in the using process and then connected through network cables or DP communication cables.

When the electric control cabinet is used, a three-phase power supply, a control signal, a communication signal and the like are connected into the electric control cabinet. When local control is needed, a local/remote change-over switch is pressed to be switched into a local mode, a rising button/a falling button is pressed, a frequency converter detects whether an external signal is safe, if the external signal is safe, the frequency converter operates to output, a band-type brake outputs, a KA1 relay and a KA2 relay coil are electrified, a rising main loop contactor KM1 and a rising main loop contactor KM2 coil are electrified, a motor band-type brake is opened, and the motor of the intelligent integrated crane rotates forwards or backwards; when the ascending limit switch is broken in the forward rotation process, the descending limit switch is broken in the reverse rotation process or the frequency converter detects a fire breaking signal, a rope loosening signal, an emergency stop signal and the like, the frequency converter stops outputting, the band-type brake is closed, the relay KA1 and the relay KA2 coil are powered off, and the motor of the intelligent integrated crane stops running. When the remote control is needed, a local/remote conversion switch is pressed down to be switched into a remote mode, the frequency converters of the n intelligent integrated cranes are connected by using Ethernet optical fiber cables or DP communication cables in a hand-pulling mode, and the PLC is communicated with the frequency converters of the access equipment through accessing IP addresses or DP addresses of the frequency converters. If the positioning function needs to be realized, the incremental encoder signal of the motor needs to be fed back to the frequency converter; the remote (computer) can be equipped with a human-computer interaction interface monitoring device such as an industrial personal computer or a touch screen. The number of remote (computer) connected intelligent integrated cranes depends on the number of PROFINET or PROFIBUS-DP equipment supported by the selected PLC.

The stage mechanical control system based on the utility model adopts distributed control on the whole framework, and the distributed control is a material and resource distributed structure, can realize distributed control, is convenient for on-site installation and wiring, and can save the length of input and output cables; meanwhile, the interference in the signal transmission process can be reduced, and the system faults are also dispersed by a dispersed control mode, so that the reliability of the system is greatly improved; the distributed control mode effectively reduces the interference in the transmission process of the communication signals and simultaneously improves the signal interference or attenuation caused by overlong lines; expansibility and flexibility improve greatly, need not to consider complicated control circuit wiring problem under the condition that needs increase and decrease equipment.

The foregoing is a preferred embodiment of the present invention for the purpose of illustrating the utility model, and it is therefore contemplated that modifications, equivalents and improvements will readily occur to those skilled in the art, which modifications are within the spirit and scope of the utility model.

Claims

1. The utility model provides a special intelligent integrative electric control cabinet for loop wheel machine of stage, includes the cabinet body, its characterized in that: a U-phase, V-phase and W-phase three-phase power indicator lamp, a descending button, an ascending button and a local/remote change-over switch are arranged on the front side of the cabinet body, and a brake resistor, a frequency converter, a relay KA2, a relay KA3, a terminal strip, a main loop contactor KM1, a main loop contactor KM2, a relay KA1, a circuit breaker, a relay KA0 and a switching power supply are arranged in the cabinet body; the brake resistor is a matched element of the frequency converter, the brake resistor is connected with a brake unit terminal of the frequency converter, the relay KA2 and the relay KA1 are respectively connected with an X3 terminal of the frequency converter and used for controlling a motor band-type brake, the relay KA3 is used for inputting a rope loosening signal and is connected with a 16-number point of an X4 terminal of the frequency converter, the upper end of a terminal row is connected with the frequency converter, the lower end of the terminal row is connected with a U-phase power indicator, a V-phase power indicator and a W-phase power indicator, a descending button, an ascending button and a binding post of a local/remote change-over switch through a lead, a main loop contactor KM1 is connected between the frequency converter and a motor of the intelligent integrated crane, the main loop contactor KM2 is connected between a main loop contactor KM1 and the motor band-type brake and used for controlling the on-off of a motor band-type brake loop, a breaker is connected with a three-phase lead-in end of the frequency converter and used for controlling the power of the frequency converter, the relay KA0 is connected with a +24V terminal of an X8 of the frequency converter, the switch power supply is used for controlling an enabling signal of the frequency converter, the input end of the switch power supply is connected with 220V alternating current, the output end of the switch power supply is direct current 24V, and the switch power supply is used for supplying power to the relay KA 3.

2. The electric control cabinet for the stage-specific intelligent integrated crane according to claim 1, characterized in that: the frequency converter is provided with an incremental encoder input interface, a PROFINET or PROFIBUS-DP communication interface and a digital input/output terminal.

3. The electric control cabinet for the stage-specific intelligent integrated crane according to claim 1, characterized in that: and a cabinet door lock is also arranged on the front side of the cabinet body.