CN201699646U

CN201699646U - Motor control device

Info

Publication number: CN201699646U
Application number: CN2010201412152U
Authority: CN
Inventors: 高飞; 王建; 李光营; 高会龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-26
Filing date: 2010-03-26
Publication date: 2011-01-05
Anticipated expiration: 2020-03-26

Abstract

The utility model relates to a motor control device, comprising a thermal relay FR, a controller PLC, a middle relay MC, a conversion switch SA, a starting button SB1 and a stopping button SB2; the controller PLC is provided with interfaces X0, X1, X2, X3, Y0 and com and a power interface; the power interface of the controller PLC is connected with an external power supply; one ends of the thermal relay FR, the conversion switch SA, the stopping button SB2 and the starting button SB1 are respectively connected with the interfaces X3, X2, X1 and X0 of the controller PLC, and the other ends are connected with the interface com of the controller PLC; and one end of the middle relay MC is connected with the interface Y0 of the controller PLC, and the other end of the middle relay MC is connected with the interface com of the controller PLC. Therefore, the motor control device is especially suitable for mine equipment and is stable and reliable in working state.

Description

Motor control assembly

One, technical field

The utility model relates to a kind of motor control assembly, and especially a kind of adaptation is used for the frizing mud scraper, the motor control assembly on (foam) machine of scraping slag.

Two, background technology

Motor is widely used as the power of mechanical device, control to motor is an important step that realizes the performance of mechanical device, therefore to using motor to be powered device, motor control assembly is an one important part, particularly to mining equiment such as frizing mud scraper, scrape slag (foam) machine etc., because its environment for use inclement condition, normally move for guaranteeing mining equiment safety, performance requirement height to motor control assembly, in the prior motor control device, also be not specifically designed to as the frizing mud scraper, scrape the motor control assembly of mining equiments such as slag (foam) machine.

Three, summary of the invention

In order to overcome above-mentioned technical disadvantages, the purpose of this utility model provides a kind of motor control assembly, adapts to mining equiment especially, and stable working state is reliable.

For achieving the above object, the technical scheme that the utility model is taked is to include circuit breaker I 1QF, circuit breaker II 2QF, contactor KM, thermal relay FR, transformer T, controller PLC, auxiliary relay MC, change over switch SA, start button SB1 and stop button SB2; External three power interface u, interface V and interface w are according to connecting with motor M with the mode that motor M is connected with thermal relay FR connection, thermal relay FR with contactor KM connection, contactor KM with circuit breaker I 1QF connection, circuit breaker I 1QF, be set to be connected with interface w2 with interface V2 between the thermal relay FR at contactor KM with the output of transformer T, at two inputs of transformer T controller PLC that is connected in parallel, two inputs of transformer T are set to be connected with external power interface L, interface N;

Controller PLC is provided with interface X0, interface X1, interface X2, interface X3, interface Y0, interface com and power interface, the power interface of controller PLC is set to and external power interface L, interface N connects, thermal relay FR, change over switch SA, the end of stop button SB2 and start button SB1 respectively with the interface X3 of controller PLC, interface X2, interface X1 is connected with interface X0, thermal relay FR, change over switch SA, the other end of stop button SB2 and start button SB1 is set to be connected with the interface com of controller PLC, and the end of auxiliary relay MC is set to be connected with the interface Y0 of controller PLC and the other end is set to be connected with the interface com of controller PLC;

The end of start button SB1, contactor KM and auxiliary relay MC is set to be connected with external power interface L, after being connected, the other end of start button SB1 and contactor KM is set to be connected with stop button SB2 one end, the stop button SB2 other end is set to be connected with change over switch SA one end, the change over switch SA other end is set to connect with the other end, thermal relay FR one end of auxiliary relay MC, the thermal relay FR other end is set to be connected with contactor KM one end, and the contactor KM other end is set to be connected with external power interface N.

The utility model has two kinds of operating states, and a kind of auto state is set control program in controller PLC, by controller PLC control, belongs at times and turns round by setting-up time, stops circular flow.Another kind of state then is a manual state, and start button SB1 is pressed in uncontrolled device PLC control, and motor turns round always, does not stop in the centre.Two states switches, and is switched by switching button SA and finishes, and the auto-manual interlocking is finished on PLC outside and PLC internal processes by switching button SA.Therefore the special mining equiment that adapts to, stable working state is reliable.

A kind of electrical autocontrol cabinet, its internal control device is set to the utility model, and its shell is set to explosion-resistant enclosure.Can in adverse circumstances, use.

Four, description of drawings

Accompanying drawing is a schematic diagram of the present utility model.

Five, embodiment

Accompanying drawing is an embodiment of the present utility model, specify present embodiment in conjunction with the accompanying drawings, include circuit breaker I 1QF, circuit breaker II 2QF, contactor KM, thermal relay FR, transformer T, controller PLC, auxiliary relay MC, change over switch SA, start button SB1 and stop button SB2; External three power interface u, interface V and interface w are according to connecting with circuit breaker I 1QF, circuit breaker I 1QF and contactor KM connect, contactor KM and thermal relay FR connect, thermal relay FR connects with motor M with the mode that motor M is connected, be set to be connected with interface w2 with interface V2 between the thermal relay FR at contactor KM with the output of transformer T, two inputs of transformer T are connected in series with fuse I 1Fu and fuse II 2Fu respectively, again at two inputs of transformer T indicator light that inserts in parallel respectively, socket C2 and controller PLC, two inputs of transformer T are set to and external power interface L, interface N connects;

In the present embodiment, the model of circuit breaker I 1QF is DI47LE32, the model of circuit breaker II 2QF is DZ47LE10, the model of contactor KM is CJX2, the model of thermal relay FR is JD-8, the model of transformer T is BL-100, and the model of controller PLC is FX2NCC, and the model of auxiliary relay MC is JZX-22F.

Be divided into two states: a kind of auto state, in controller PLC, set control program, by controller PLC control, belong at times and turn round by setting-up time, stop circular flow.Another kind of state then is a manual state, and start button SB1 is pressed in uncontrolled device PLC control, and motor turns round always, does not stop in the centre.Two states switches, and is switched by switching button SA and finishes, and the auto-manual interlocking is finished on PLC outside and PLC internal processes by switching button SA.

One, at first stirs change over switch SA to auto state, press start button SB ₁, controller PLC accepts the enabling signal of start button SB1, the interface Y0 output of controller PLC, and middle relay MC adhesive drives, and contactor KM adhesive motor M begins to shut down by setting the period circulation.When pressing stop button SB2, controller PLC accepts stop signal, and the interface Y0 of controller PLC stops output, and auxiliary relay MC disconnects, and contactor KM also disconnects thereupon, and motor M is out of service.

Two, when stirring change over switch SA to manual state, change over switch SA input controller PLC contact disconnecting external control loop at this moment, controller SA controls the closing of contact, for contactor KM closed ready.When pressing start button SB1, start button SB1 and stop button SB2 are normally closed, change over switch SA closing contact, thermal relay FR closing contact, contactor KM adhesive, and self-insurance, motor M turns round always, when pressing stop button SB2, contactor KM disconnects and cutting off the electricity supply, and motor shuts down.

A kind of embodiment of electrical autocontrol cabinet, its internal control circuit is set to the embodiment of this motor control assembly, and its shell is set to by explosion-proof metal material disposal pressed moulding.

The utlity model has lower characteristics:

(1), the reliability height, antijamming capability is strong

High reliability is key performance of the present utility model. The PLC that uses adopts modern large scale integrated circuit technology, adopts strict production technology manufacturing, and internal circuit has been taked advanced Anti-Jamming Technique. The built-in thermal protector of the utility model, when electrical equipment excess temperature, overcurrent, automatic shutoff circuit is protected motor.

(2), system configuration simple and flexible

Z the utility model master unit PLC control needs only reprogramming and changes a small amount of binding post, just can adapt to the change of production technology

(3), real-time

The utility model adopts the PLC action, and signal transmission time is short, and speed is fast. Timer aspect master unit parts PLC precision height, timing range is wide, and the time is easy to adjust.

(4), hardware is comprehensive, the user is easy to use, and is practical

Inner each cell layout of the utility model is reasonable, compact.The user can control the automation of plant equipment easily in advance by outer button.Can meet consumers' demand according to user's needs establishment corresponding program.

(5), the design of system, construction work amount are little, easy to maintenance

The utility model does not need special machine room, can directly operation under various industrial environments.Only need during use the equipment motor at scene is joined with corresponding binding post.Can put into operation, significantly reduce the wiring of control appliance outside, the cycle of Control System Design and construction is shortened dramatically.Run indicator is installed on the electrical control cubicles, is convenient to the user and understands plant equipment ruuning situation.

Claims

1. motor control assembly; It is characterized in that: include circuit breaker I 1QF, circuit breaker II 2QF, contactor KM, thermal relay FR, transformer T, controller PLC, auxiliary relay MC, change over switch SA, start button SB1 and stop button SB2; External three power interface u, interface V and interface w are according to connecting with motor M with the mode that motor M is connected with thermal relay FR connection, thermal relay FR with contactor KM connection, contactor KM with circuit breaker I 1QF connection, circuit breaker I 1QF, be set to be connected with interface w2 with interface V2 between the thermal relay FR at contactor KM with the output of transformer T, at two inputs of transformer T controller PLC that is connected in parallel, two inputs of transformer T are set to be connected with external power interface L, interface N;

2. electrical autocontrol cabinet, it is characterized in that: the internal control device of electrical autocontrol cabinet is set to the motor control assembly of claim 1, and its shell is set to explosion-resistant enclosure.