CN2207027Y - Low-voltage remote controllor - Google Patents

Abstract

The utility model relates to a low-voltage remote controller which is used in the control circuit of the drive motor of a lumber conveyor and is composed of a shell, control wires, a transforming rectifying circuit, an electronic control circuit, etc. Two non-contact electronic switches are composed of two optical couplers and two bidirectional thyristors respectively connected with the three control wires. As long as the two control wires in upper and middle sides or in lower and middle sides are touched, the motor of the lumber conveyor can be started or stopped at any time, so as to be accurately parked at the doorway of a warehouse. The utility model has the advantages of convenient operation and reliable work, saves labor and prolongs the service life of the motor.

Description

Low-voltage remote controllor

The utility model relates to a kind of low-voltage electrical apparatus device, exactly, relates to the low pressure remote controllor in a kind of drive motors control circuit that is used for the timber conveyer.

The timber conveyer is made up of drive motors and mine chain, more piece railway carriage, every biographies send the captain to reach 100～200 meters, hang with on it and be mounted with different brackets, various timber that Different Diameter is enclosed and the more piece railway carriage of various goods, by transporting of this conveyer, these timber and goods can be loaded and unloaded in contiguous its transmission track each warehouse nearby nearby.Because every goods and timber are all quite heavy, stop before need driving to each warehouse door that load and unload, store it at conveyer, be responsible for a timber by 2～3 workmans again and goods unloads with the car escort, be placed on warehouse door before.Because conveyer is long, just need notifies start control personnel to shut down at any time at any time and start shooting by the operator.Now, be to realize this control by insulation backguy L, pulling switch LK and an electric bell W who reaches 100～200 meters, the control circuit of conveyer drive motors is referring to shown in Figure 1.When conveyer need stop before certain storehouse, the operator just connected pulling switch LK by insulation backguy L, the electric bell sounding, and the notice start personnel shut down.And after start control personnel hear the tinkle of bells, just press stop button S2, and contactor K outage, main contact K2 power down, drive motors M dead electricity shuts down, auxiliary contact K switch 1 also power down simultaneously, conveyer is shut down.When operating personnel hear electric bell sound for the second time, be initiating signal just, press starting button S1, contactor K powers up, main contact K2 closure, auxiliary contact K1 is also closed, and motor M powers up, the starting operation of conveyer motor M.Like this, be easy to cause conveyer can not stop at the goods door mouth that it should stop exactly, often need the repeated multiple times start-stop could realize accurately shutting down, both influenced production, waste energy again, and start, all will could notify the start personnel by backguy when stopping, work is inconvenience very; Motor is start-stop repeatedly, also has a strong impact on its working life.

The purpose of this utility model provides a kind of low pressure remote controllor that is used for the drive motors control circuit of timber conveyer, so that can control the starting and stopping operation of conveyer accurately, easily and safely.

The utility model is to realize like this, it includes: shell, control line, transformation rectification circuit and electronic control circuit, it is characterized in that: the electronic control circuit that is positioned at insulation crust, be by two Light Coupled Device and two bidirectional triode thyristors and resistance, container piece constitutes two contactless electronic beam switch respectively and constitutes, six conductive feet of therefrom drawing, there are three respectively with last, in, following three control lines link to each other, wherein, following two control lines link to each other with the positive and negative terminal of the low-voltage output circuit of transformation rectification circuit, other three two ends of often driving the auxiliary contact switch that then are connected on the A.C. contactor input in the drive motors control circuit respectively and are connected in parallel on this A.C. contactor.

The utility model has the advantages that directly to take and bump control line, just can realize the starting and the shutdown of conveyer drive motors at any time by the operator, easy to operate, safe and reliable.Can make things convenient for exactly conveyer to be stopped at the doorway, warehouse that it should unload its goods and timber, can reduce by start control personnel again, raise labour productivity, also can reduce the start-stop repeatedly of motor, prolong its useful life.In a word, this device is the control device of remarkable benefit in the timber conveyer control circuit.

Fig. 1 is the timber conveyer drive motors control circuit schematic diagram that uses now.

Fig. 2 is electrical schematic diagram of the present utility model and the wiring position figure in timber conveyer drive motors control circuit thereof.

Fig. 3 is a schematic appearance of the present utility model.

Referring to Fig. 2, electrical schematic diagram of the present utility model is gone out by the with dashed lines frame, and that view picture is shown in Figure 2 is the wiring position figure of the utility model in timber conveyer drive motors control circuit.ABC exchanges 380 volts three phase supply branch road among the figure, and M is the drive motors of conveyer, and I is an electronic control circuit of the present utility model in the frame of broken lines, and II is the transformation rectification circuit, and III is three control lines in upper, middle and lower.In the frame I: bidirectional triode thyristor SCR1 is attempted by the two ends of often opening auxiliary contact K switch 1 of A.C. contactor K, the both positive and negative polarity of bidirectional triode thyristor SCR2 is serially connected in the main circuit power supply of A.C. contactor, their both control utmost points are all by resistance R and optical coupler GD1, photodiode among the GD2 is connected to the input of A.C. contactor K, this two optical coupler GD1, the photodiode output of GD2 all links to each other with the center line Y of control line, the light-emitting diode positive terminal of optical coupler GD1 links to each other with upper control line X, the light-emitting diode positive terminal of optical coupler GD2 links to each other with following control line Z, positive and negative resistance and the electric capacity of extremely all being parallel with of above-mentioned two silicon controlleds.This two silicon controlleds rated current should be 1.5～2 times of starting current of contactor coil.These three upper, middle and lower control lines are to select for use No. 8 iron wires of φ 4 mm dias to make, and rearrange along the conveyer traveling distance and the insulation that is isolated from each other, and its length should be not more than 1000 meters.The transformation rectification circuit is output as 12 volts of low pressure of direct current, and its positive pole links to each other with middle control line, and negative pole links to each other with following control line.

Referring to Fig. 3, whole devices of whole electronic control circuit 8 are installed and are welded on the circular wiring board 9, are enclosed within the outside with insulation crust 7 again, and can fill in the middle of it and pour into the epoxy resin of anti-the combustion, 1～6th, six leg of drawing from wiring board.As shown in the figure, wherein: 1,2,3 are connected with upper and lower, middle control line Z, X, Y respectively, and leg 4,5 is attempted by the two ends of often opening auxiliary contact K switch 1 of main contactor, 6 inputs that are connected on main contactor K of leg.

Introduce its operation principle below in conjunction with using method of the present utility model: when conveyer moves; need be when a certain storehouse be shut down; operating personnel are as long as the center line Y in the control line that will set up along the line conveniently collides with the X that rolls off the production line; GD2 light-emitting diode dead electricity in the electronic control circuit; its photodiode is ended, and then bidirectional triode thyristor SCR2 is because of control utmost point dead electricity is turn-offed, A.C. contactor K outage shuts down drive motors.After loading and unloading is finished, the staff is as long as collide center line Y with two control lines of X of reaching the standard grade, make optical coupler GD1 conducting, the control utmost point of bidirectional triode thyristor SCR1 gets electric and makes its conducting, the start button S1 that is equivalent in the circuit for controlling motor powers up A.C. contactor K by pressing, the electric motor starting running, conveyer moves on.

The utility model is through trial-production and implement test, can realize touching two control lines and make the timber conveyer goal of the invention of accurate stopping immediately at any time, having overcome needs start-stop motor repeatedly, the disadvantage of ability accurate stopping, and can save motor operation control personnel, the conveyer motor can prolong useful life greatly, and improves to stop and load and unload work efficiency more than two times.

Claims (4)

1, a kind of low pressure remote controllor that is used for the drive motors control circuit of timber conveyer, include: shell, control line, transformation rectification circuit and electronic control circuit, it is characterized in that: the electronic control circuit that is positioned at insulation crust, be by two Light Coupled Device and two bidirectional triode thyristors and resistance, container piece constitutes two contactless electronic beam switch respectively and constitutes, six conductive feet of therefrom drawing, there are three respectively with last, in, following three control lines link to each other, wherein, following two control lines link to each other with the positive and negative terminal of the low-voltage output circuit of transformation rectification circuit, other three two ends of often driving the auxiliary contact switch that then are connected on the A.C. contactor input in the drive motors control circuit respectively and are connected in parallel on this A.C. contactor.

2, low pressure remote controllor as claimed in claim 1, it is characterized in that: the both positive and negative polarity of one of them bidirectional triode thyristor is attempted by the two ends of often driving the auxiliary contact switch of above-mentioned A.C. contactor, the both positive and negative polarity of another bidirectional triode thyristor is serially connected in the main circuit power supply of A.C. contactor, their both control utmost points all are connected to the input of A.C. contactor by the photodiode in resistance and the optical coupler, the photodiode output of these two optical couplers all links to each other with the center line of control line, the positive terminal of the light-emitting diode in first optical coupler links to each other with upper control line, the positive terminal of the light-emitting diode in second optical coupler then links to each other with following control line, at positive and negative resistance and the electric capacity of extremely all being parallel with of above-mentioned two silicon controlleds.

3, low pressure remote controllor as claimed in claim 1 is characterized in that: it is that No. 8 iron wires of 4 millimeters of φ are made that three control lines in upper, middle and lower should be selected diameter for use.

4, low pressure remote controllor as claimed in claim 1 is characterized in that: the rated current of above-mentioned two bidirectional triode thyristors should be 1.5～2 times of starting current of contactor coil.

Images