CN2432100Y - Driving induction brake controller - Google Patents

Abstract

The utility model relates to a driving induction brake controller. The controller is provided with a trigger pulse, a logic relay and a thyristor circuit, wherein, the logic relay controls the switch-on of a given circuit in a trigger pulse circuit; the triggered pulse circuit decides the pulse phase moving angle, namely the angle of thyristor conduction according to given and feedback sizes; the angle of thyristor conduction decides the value of voltage at both ends of the driving induction brake IB. The utility model has the advantages of high reliability, flexible control, simple manufacture, easy installation, etc. and can thoroughly solve the problem of hook slide of bicycles.

Description

Driving induction brake controller

The utility model is a kind of driving induction brake controller.

At present, ubiquity slide hook problem in the large-scale driving of China's operation.This is that its low gear seals in big resistance in rotor winding because the driving gig uses is the three-phase wound AC motor, and rotor current is less, and the not enough weight equalizer gravity of moment can cause the cause that glides because of the weight of weight self during operation.Ways of addressing this issue is to install brake feeling additional to answer lock on the lifting arbor now, and after mechanical hatching gate unclamped, the gig low gear added the gravity of a moment balance weight., because brake feeling is answered the lock work-hours to lack and need be carried out accuracy control to its moment, therefore press for a kind of dependable performance and cheap controller.

The purpose of this utility model provides a kind of driving induction brake controller, and this controller can be regulated the operation conditions that brake feeling is answered lock according to field working conditions, realizes the accuracy control to the induction lock, with thorough solution driving slide hook problem.

The purpose of this utility model is achieved in that and is provided with trigging pulse, logic relay and circuit of SCR.Wherein, the given loop in the logic relay control trigging pulse circuit is connected, and the trigging pulse circuit is the silicon controlled conduction angle according to phase shifting angle given and feedback size decision pulse, the size of thyristor operating angle decision driving induction lock IB both end voltage.Because the moment of driving induction lock (hereinafter to be referred as the IB lock) is directly proportional with electric current in its coil, and coil current is directly proportional with its terminal voltage, therefore just realized the direct control of master winch crane operation gear, guaranteed that promptly the IB lock rises 1 grade and descend 1,2,3 grade to reach back and in time move when zero at electric motor starting IB lock mode of operation.

The utlity model has following major advantage: the one, the reliability height, control is flexible, and the operation conditions that can regulate the IB lock according to field working conditions realizes the accuracy control to the IB lock, thereby has thoroughly solved driving slide hook problem.The 2nd, make simple, easy for installation.The 3rd, can realize good cost performance.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.

Fig. 1 is a circuit block diagram of the present utility model.

Fig. 2 is trigging pulse schematic circuit diagram among Fig. 1.

Fig. 3 is logic relay and a circuit of SCR schematic diagram among Fig. 1.

As shown in Figure 1, the utility model comprises trigging pulse, logic relay and the circuit of SCR of the master winch crane operation gear of driving, wherein, given loop in the logic relay control trigging pulse circuit is connected, the trigging pulse circuit is the silicon controlled conduction angle according to phase shifting angle given and feedback size decision pulse, the size of thyristor operating angle decision driving induction lock IB both end voltage.

Above-mentioned trigging pulse circuit is as shown in Figure 2: comprise power supply, voltage stabilizing, triggering, inverse feedback and to certain portions, its radical function is to produce the pulse of triggering silicon controlled, is contained on the control desk.Power unit: power supply is the 220V alternating current, is sent into through voltage transformer T1 by electric power loop among Fig. 3, and through protective tube FUSE1, FUSE2 and resistance R 0, the laggard rectifier bridge D1 of C0 filtering, rectifier bridge D1 is output as the 220V vdc again; The D1 positive pole connects outside dropping resistor R1 one end, the R1 other end advances the positive source that control desk becomes control desk, the D1 negative pole is as the ground of The whole control plate, this power supply is by end to end stabilivolt ZD1 in the voltage stabilizing part, ZD2, ZD3, ZD4, the ZD5 voltage stabilizing, make whole power line voltage be stabilized in 220V, this voltage is the working power of triggering part, triggering part is the unijunction transistor self-oscillating triggering circuit, by unijunction transistor WJT and aerotron Q1, Q2 and capacitor C 2 constitute, simultaneously by taking from the secondary side of general supply major loop voltage transformer T4 (Fig. 3) with its control voltage, so and major loop synchronous; The charging/discharging voltage of Q1 collector voltage control C2, the charging valtage of C2 is controlled conducting and the shutoff of WJT again; By the speed that discharges and recharges of C2 and conducting and the shutoff of WJT, make on the former limit of pulse transformer PT and form a series of pointed pulse, through the secondary output of PT, trigger the silicon control conducting again, the PT secondary is divided into two groups of outputs, controls two silicon control VT1, VT2 (Fig. 3) respectively; The Q1 base tension is subjected to the control of Q2 collector voltage, the Q2 collector voltage is controlled by himself base tension, the base tension of Q2 just is the constant potential of giving in whole triggering loop, is somebody's turn to do the phase shifting angle to the big or small control wave of constant potential, just controls the silicon controlled conduction angle.Give constant potential by after filtering and dividing potential drop, providing, its given circuit has four the tunnel, connect by 4 kinds of logic controls in the relay loop of logic relay respectively, when wherein any one the tunnel when connecting, after the given bleeder circuit dividing potential drop via potential device W1, W2, W3, W4 and R12, R13, R14, R15 and R9, R10 composition, draw definite value by W5, deliver to the Q2 base stage.

In the above-mentioned unijunction transistor self-oscillating triggering circuit, the base stage of WJT is through the former edge joint stabilivolt of PT ZD5 positive pole, D1 negative pole, another base stage connects ZD1 negative pole, R1 one end through R2, another termination of R1 D1 positive pole, and the emitter of WJT connects the Q1 collecting electrode and connects the D1 negative pole through C2; The Q1 emitter connects the ZD1 negative pole through R17, diode D4 positive pole, and the Q1 base stage connects the Q2 collecting electrode and connects the D4 negative pole through R4, D15 positive pole; The Q2 emitter connects the Q2 base stage and connects the D1 negative pole through R18 through the D16 negative pole, and the Q2 base stage links to each other with the potential device W5 central contact of giving certain portions through the serial connection point of R6 and D17 positive pole.

Aerotron Q2 base tension is controlled by feedback voltage also except that by the given voltage control.Feedback voltage is taken from master winch hoisting crane HI, the rectifier bridge rectification of after voltage transformer T2, T3 step-down, forming by D5, D6, D7, D8, D9, D10, voltage after the rectification to potential device W5 two ends, is delivered to the base stage of Q2 through R7, the absorption of C5 capacitance-resistance and R8, C4 filtering by the center tap of W5.

Logic relay of the present utility model and circuit of SCR be as shown in Figure 3: external source is opened ZZ through sky and is delivered to the former limit of voltage transformer T4, T4 is 380V/220V, 240V AC transformer, one group of 220V power supply of T4 secondary is delivered to Relay-controlled Circuit and trigging pulse circuit, another group 240V power supply is delivered to the rectifier bridge AC side behind wire fuse EFM, rectifier bridge is made up of diode (led) module and silicon controlled module.

In the above-mentioned logic relay: be provided with time relay ZH, Z and intermediate relay I B1, IB2, IB3, IB4 and contactless switch J, the one end is connected to voltage transformer T4 secondary 1 end, knife switch 1 end; Its other end, be that the ZH other end connects knife switch 2 ends and T4 secondary 2 ends through C2 Chang Kaiduan, and connect the other end of J by J normal-closed end, IB3 and the IB4 Chang Kaiduan of parallel connection through ZH self-locking end, the J other end connects transposition switch 6 ends through J Chang Kaiduan, Z self-locking termination transposition switch 6 ends with through IB1 Chang Kaiduan, the IB2 other end is through the normally closed termination IB3 Chang Kaiduan of IB3, IB4, transposition switch 7 ends, the IB3 other end is through the normally closed termination transposition of IB4 switch 8 ends, IB4, the IB1 other end connect transposition switch 9,10 ends respectively, and the Z other end is through the normally closed termination transposition of IB2 Chang Kaiduan, IB1 switch 6 ends.

Above-mentioned silicon controlled module has two silicon controls of VT1, VT2, and VD1, the VD2 of itself and diode (led) module constitutes the single-phase full wave rectifier bridge.The control utmost point of VT1, negative electrode connect one tunnel output G1, K1 end of PT secondary respectively, and the control utmost point of VT2, negative electrode connect two tunnel output G2, K2 ends of PT secondary respectively; The VT1 anode connects the end of VD2 positive pole, driving induction lock IB, and connect VT2 negative electrode, VD1 negative pole and electric current test indicator one end through adjustable resistance R0, the test indicator other end like this, can be realized the control to the voltage and current of IB lock through the other end that smoothing reactor CH meets IB; VT1 negative electrode, VD1 positive pole are respectively through insurance wire connection voltage transformer T4 secondary 3,1 end; At the diode two ends respectively and filter capacitor arranged, the silicon control two ends respectively and the capacitance-resistance absorption circuit arranged.

Above-mentioned logic relay partly is mainly the control given connection of trigging pulse device and is provided with, when its action starts for the driving hoisting crane, the action of IB lock is connected given loop by IB2, circuit relay electrical equipment IB1, IB2, IB3, IB4 correspond respectively to the driving hoisting crane 1 grade of decline, descend 2 grades, descend 3 grades and rise and connect 1 grade the time, the IB lock puts into operation when connecting wherein any one grade.Relay J is trigging pulse circuit incoming power break-make contactless switch, and this power supply is through the laggard trigging pulse circuit of isolating transformer.1 grade, 2 grades, 3 grades of declines from the above mentioned, rise 1 grade return zero or to other not when the gear of above-mentioned these row of fourth gear, the time-delay of IB lock disconnects, turnoff time is by time relay Z control and adjustable, the effect of ZH is to guarantee that the driving hoisting crane starts the back relay J and can get electric self-locking in the circuit, after the J self-locking, ZH disconnects the loop, and the ZH time is adjustable.

Claims (6)

1, a kind of driving induction brake controller, it is characterized in that described controller is provided with trigging pulse, logic relay and circuit of SCR, wherein, given loop in the logic relay control trigging pulse circuit is connected, the trigging pulse circuit is the silicon controlled conduction angle according to phase shifting angle given and feedback size decision pulse, the size of thyristor operating angle decision driving induction lock IB both end voltage.

2, controller according to claim 1, it is characterized in that the trigging pulse circuit comprises that power supply, voltage stabilizing, triggering, inverse feedback reach to certain portions, triggering part is the unijunction transistor self-oscillating triggering circuit, constitute by unijunction transistor WJT and aerotron Q1, Q2 and capacitor C 2, its former limit at pulse transformer PT forms a series of pointed pulses, through the output of voltage transformer secondary, trigger the silicon control conducting again.

3, controller according to claim 2, it is characterized in that in the unijunction transistor self-oscillating triggering circuit, the base stage of WJT is through the former edge joint stabilivolt of pulse voltage transformer PT ZD5 positive pole, rectifier bridge D1 negative pole, another base stage connects the ZD1 negative pole through resistance R 2, R1 one end, another termination of R1 D1 positive pole, the emitter of WJT connects aerotron Q1 collecting electrode and connects the D1 negative pole through C2, the Q1 emitter is through R17, diode D4 positive pole connects the ZD1 negative pole, the Q1 base stage connects the Q2 collecting electrode and through R4, the D15 positive pole connects the D4 negative pole, the Q2 emitter connects the Q2 base stage and connects the D1 negative pole through R18 through the D16 negative pole, and the Q2 base stage links to each other with the potential device W5 central contact of giving certain portions through the serial connection point of R6 and D17 positive pole.

4, controller according to claim 2, it is characterized in that having four the tunnel to certain portions, connect by 4 kinds of logic controls in the relay loop of logic relay respectively, when wherein any one the tunnel when connecting, after the given bleeder circuit dividing potential drop via potential device W1, W2, W3, W4 and R12, R13, R14, R15 and R9, R10 composition, draw definite value by W5, deliver to the base stage of aerotron Q2.

5, according to claim 1 or 4 described controllers, it is characterized in that in the logic relay, be provided with time relay ZH, Z and intermediate relay I B1, IB2, IB3, IB4 and contactless switch J, the one end is connected to voltage transformer T4 secondary 1 end, knife switch 1 end, its other end, be that the ZH other end connects knife switch 2 ends and T4 secondary 2 ends through C2 Chang Kaiduan, and through the J normal-closed end of ZH self-locking end by parallel connection, IB3 and IB4 Chang Kaiduan connect the other end of J, the J other end is through J Chang Kaiduan, Z self-locking termination transposition switch 6 ends and connect transposition switch 6 ends through IB1 Chang Kaiduan, the IB2 other end is through IB3, the normally closed termination IB3 Chang Kaiduan of IB4, transposition switch 7 ends, the IB3 other end is through the normally closed termination transposition of IB4 switch 8 ends, IB4, the IB1 other end connects transposition switch 9 respectively, 10 ends, the Z other end is through IB2 Chang Kaiduan, the normally closed termination transposition of IB1 switch 6 ends.

6, controller according to claim 1, it is characterized in that silicon control has VT1, two silicon controls of VT2, itself and diode VD1, the VD2 module constitutes the single-phase full wave rectifier bridge, the control utmost point of VT1, negative electrode meets one tunnel output G1 of pulse transformer PT secondary respectively, the K1 end, the control utmost point of VT2, negative electrode meets two tunnel output G2 of PT secondary respectively, the K2 end, the VT1 anode connects the VD2 positive pole, the end of driving induction lock IB, and connect the VT2 negative electrode through adjustable resistance R0, VD1 negative pole and electric current test indicator one end, the test indicator other end connects the other end of IB, VT1 negative electrode through smoothing reactor CH, the VD1 positive pole is respectively through insurance wire connection voltage transformer T4 secondary 3,1 end.

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