CN101912807A - Method and controller for automatically controlling feed of crusher - Google Patents
Method and controller for automatically controlling feed of crusher Download PDFInfo
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- CN101912807A CN101912807A CN 201010257995 CN201010257995A CN101912807A CN 101912807 A CN101912807 A CN 101912807A CN 201010257995 CN201010257995 CN 201010257995 CN 201010257995 A CN201010257995 A CN 201010257995A CN 101912807 A CN101912807 A CN 101912807A
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Abstract
The invention provides a method and a controller for automatically controlling the feed of a crusher. The method comprises that: when the load of the crusher is increased, and the current of a motor of the crusher is larger than a preset value, a control device cuts off the power supply current of a vibration motor so as to reduce the load of the crusher; and when the current of the motor of the crusher is reduced to the preset value, the control device is delayed and then switches on a power supply circuit of the vibration motor. The controller has the following structure: a current transformer is arranged on any phase of a start-up cabinet; the output end of the current transformer is connected with a rectifier circuit; the rectifier circuit, a filter circuit and an amplifier circuit are connected in turn; the output end of the amplifier circuit is connected with a singlechip circuit; and the output end of the singlechip circuit is connected with a contactor which is arranged in an AC power supply. The feed of the crusher is automatically controlled by controlling the vibration motor through detecting the current of the motor of the crusher, and the production efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of method of automatic control feed of crusher and realize the controller of this method, belong to control method and equipment technical field.
Background technology
Along with development of technology, benficiation machinery by many of traditional needs/set up be equipped with simultaneously through pulverizes, sieve, the operating type of conveyer belt or conveyor delivery, magnetic separation changed use combined type ore separators into, China Patent No. 200520135524.8 discloses " a kind of combined energy-conservation ore separators ", and this benficiation machinery has improved efficient greatly.But this combination type ore separator take place to stop up or material when too much at disintegrating machine, and the vibratory sieve of upstream can not slow down or stop feed automatically, must be by artificial shutdown, and untimely if vibratory sieve is shut down, usually can cause the disintegrating machine motor load excessive and damage.In order to overcome this defective, China Patent No. 200810055126.3 discloses " a kind of combination type ore separator of automatic control ", its operation principle is when the load of disintegrating machine motor increases, from disintegrating machine motor current supply circuit, take out the signal of telecommunication by control module, pass through the amplification of control module, the relatively back control relay of connecting, the control loop at place disconnects, stop the operation of vibratory sieve, and along with the disintegrating machine load is reduced to predetermined value, then control loop is connected, automatically the operation of Vibration on Start-up sieve.Though this control device has solved the problem of protection disintegrating machine motor, meanwhile disintegrating machine has been blocked, and must go to handle with several hrs, wastes time and energy, delays production.Therefore users wish and can be further improved the protection control device, effectively can enhance productivity in the enforcement protection.
Summary of the invention
One of purpose of the present invention is: at the ore separators disintegrating machine vibratory sieve feed that can not slow down automatically of loading when excessive, the defective that causes disintegrating machine to damage is easily improved, a kind of method of automatic control feed of crusher is provided, so that control the operation of vibratory sieve automatically according to the load condition of disintegrating machine, two of purpose is: a kind of equipment of realizing said method is provided.
Technical scheme of the present invention is achieved in that
A kind of method of automatic control feed of crusher, it adopts following steps to carry out:
A. control device takes out current signal from the disintegrating machine current supply circuit, compare with the current protection point value that is stored in the control device, when current in loop value during greater than the current protection point value, control device output protection signal, disconnect contactor, cut off the vibrating motor supply current;
B. control device continues the current value in the monitoring disintegrating machine current supply circuit, and when current value was reduced to the 80-90% of protection point value, trigger recovered vibrating motor power supply output after time-delay is finished;
C. continuous phase shortage 3-5 taking place during second in the control device monitoring disintegrating machine current supply circuit, start open-phase protection, disconnect contactor, cuts off the vibrating motor supply current;
If it is intermittent that d. phase shortage takes place, the cumulative time, enough 5-10 started open-phase protection after second, disconnected contactor, cut off the vibrating motor supply current.
A kind of controller of realizing above-mentioned automatic control feed of crusher method, it comprises current transformer, rectification circuit, filter circuit, amplifying circuit, output circuit, D/A converting circuit, watchdog circuit, reset circuit, single chip circuit, memory circuit, any one current transformer is installed on mutually what start cabinet, the output of current transformer is received the transformer input of rectification circuit, rectification circuit, filter circuit, amplifying circuit, D/A converting circuit connects successively, the input of the output order sheet machine circuit of D/A converting circuit, the output of single chip circuit connects output circuit respectively, watchdog circuit, reset circuit, memory circuit, the output termination contactor of output circuit, contactor is installed in the AC power.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described rectification circuit comprises transformer B1, resistance R 1, R2, R3, R4, rectifying tube D1, D2, wherein resistance R 1 two ends connect the two ends of B1 level of transformer respectively, 1 pin of B1 level of resistance R 2 one termination transformers, other end connecting resistance R3, R4, resistance R 3 one terminating resistor R4, the negative pole of another termination D1, the positive pole of another termination rectifying tube D2 of R4, B1 level of the cathode connecting transformer of rectifying tube D1 2 pin, negative pole is received filter circuit, and the positive pole of rectifying tube D2 connects amplifying circuit, and negative pole links to each other with the positive pole of rectifying tube D1.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described filter circuit is made up of resistance R 15, R5, capacitor C 2, C3, C5, capacitor C 2, resistance R 15, capacitor C 5 are in parallel, an end in parallel connects rectification circuit, other end ground connection, an end in parallel is connected the anodal connecting resistance R5 of capacitor C 3, minus earth again with amplifying circuit by resistance R 5.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described amplifying circuit is made up of amplifier U1, resistance R 6, R7, R8, R9, R10, capacitor C 1,4 pin of amplifier U1 connect power supply, 11 pin ground connection, 14 pin of one termination amplifier U1 of resistance R 6 and an end of resistance R 7,10 pin and the capacitor C 1 of another termination amplifier U1, another termination amplifier U1 of resistance R 7 13 pin and an end of resistance R 8, resistance R 9 connects 9 pin and the resistance R 10 of amplifier U1, and resistance R 10 connects 8 pin and the D/A converting circuit of amplifier U1.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, D/A converting circuit is by analog-digital chip U2, voltage-stabiliser tube D3, resistance R 16, capacitor C 6 is formed, the output of amplifying circuit connects 2 pin of analog-digital chip U2 through resistance R 16, and connect the negative pole of voltage-stabiliser tube D3, the plus earth of voltage-stabiliser tube D3,5 of analog-digital chip U2,6,7,8,12,13 pin ground connection, 9 pin of analog-digital chip U2 are bus data lines, with single chip circuit, the bus data line of memory circuit joins, 10 pin of analog-digital chip U2 are bus clock lines, with single chip circuit, the bus clock line of memory circuit joins, 15 pin of analog-digital chip U2 connect 12 pin of single-chip microcomputer U4,14 of analog-digital chip U2,16 pin connect power supply, and meet filter capacitor C6.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described watchdog circuit is made up of chip U3 and capacitor C 7,1 and 8 pin of chip U3 join, 2 pin connect power supply and connect capacitor C 7, the 3 pin ground connection of chip U3,6 pin connect 10 pin of single-chip microcomputer U4, and 7 pin of chip U3 connect 9 pin of single-chip microcomputer U4, and connect reset circuit.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described reset circuit is made up of capacitor C 4, resistance R 17, connector J5, and wherein capacitor C 4 positive poles meet power supply and connector J5, the other end of negative pole connecting resistance R17 and connector J5.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described single chip circuit is by single-chip microcomputer U4, crystal oscillator JZ, capacitor C 8, C10, C11, resistance R 11, R12, connector J1, J2, J 3, J4 forms, wherein the 1-8 pin of single-chip microcomputer U4 connects the 1-8 pin of connector J2 respectively, 13 pin of single-chip microcomputer U4 connect the end of connector J4, the 14-17 pin of single-chip microcomputer U4 connects the 1-4 pin of connector J 3, the 5 pin ground connection of connector J 3,18 pin of single-chip microcomputer U4 connect an end and the capacitor C 10 of crystal oscillator JZ, 19 pin of single-chip microcomputer U4 connect the other end and the capacitor C 11 of crystal oscillator JZ, the 20 pin ground connection of single-chip microcomputer U4,21 pin of single-chip microcomputer U4 connect the clock line of bus and connect and draw resistance R 11, another termination power of resistance R 11,22 pin of single-chip microcomputer U4 connect the data wire of bus and connect and draw resistance R 12, another termination power of resistance R 12,22 of single-chip microcomputer U4,23,24 pin meet 1 of connector J1,2,3 pin, 4 pin of connector J1 connect power supply, the 5 pin ground connection of connector J1,40 pin of single-chip microcomputer U4 connect power supply and capacitor C 8.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described store electricity router chip U5 and capacitor C 9 are formed, the 1-4 pin ground connection of chip U5,5 pin connect bus data line, and 6 pin connect the clock line of bus, 7 pin ground connection, 8 pin connect power supply and capacitor C 9.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, described output circuit is made up of chip U6, triode T9, resistance R 13, R14, solid-state relay J, the 1 pin connecting resistance R13 of chip U6, another termination power of resistance R 13,2 pin of chip U6 connect 11 pin of single-chip microcomputer U4,3 pin of chip U6 connect the base stage of triode T9, the grounded emitter of triode T9, colelctor electrode connects the negative pole of solid-state relay J, the 4 pin connecting resistance R14 of chip U6, another termination power of resistance R 14 and the positive pole of solid-state relay J.
The controller of the above-mentioned automatic control feed of crusher method of above-mentioned realization, it also has display board, display board is by decoder U7, charactron LED1, LED2, LED3, triode T1-T8, current-limiting resistance R18-R26, capacitor C 12, connector J7, J8 forms, wherein 1 of J7,2,3 pin meet 1 of decoder U7 respectively, 2,3 pin, 4 pin of connector J7 are that positive 5V power supply meets 6 of decoder U7, the colelctor electrode of 16 pin and triode T1 one T8,5 pin of connector J7 meet 4 of decoder U7,5, one end of 8 pin and capacitor C 12,7 of decoder U7,9,10,11,12,13,14,15 pin are connecting resistance R18-R26 respectively, the other end of resistance R 18-R26 connects the base stage of triode T1 one T8 respectively, triode T1, T2, the emitter stage of T3 meets 12 of charactron LED1 respectively, 9,8 pin, triode T4, the emitter stage of T5 meets 14 of charactron LED2 respectively, 13 pin, triode T6, T7, the emitter stage of T8 meets 12 of charactron LED3 respectively, 9,8 pin, 8 pin of connector J8 meet charactron LED1,11 of 11 pin of LED3 and LED2,16 pin, 7 pin of connector J8 meet charactron LED1,10 of 7 pin of LED3 and LED2,15 pin, 6 pin of connector J8 meet charactron LED1,3 of 4 pin of LED3 and LED2,8 pin, 5 pin of connector J8 meet charactron LED1,2 of 2 pin of LED3 and LED2,6 pin, 4 pin of connector J8 meet LED1,1 of 1 pin of LED3 and LED2,5 pin, 3 pin of connector J8 meet LED1,12 of 10 pin of LED3 and LED2,18 pin, 2 pin of connector J8 meet LED1,7 of 5 pin of LED3 and LED2,17 pin, 1 pin of connector J8 meets LED1,4 of 3 pin of LED3 and LED2,9 pin.
The method of this automatic control feed of crusher and realize the controller of this method, its automaton is installed in the current supply circuit of disintegrating machine motor, control device takes out the signal of telecommunication and monitors from disintegrating machine motor current supply circuit, when the disintegrating machine load increases, the disintegrating machine current of electric is during greater than preset value, control device will the disconnection contactor, cut off the vibrating motor supply current, stop the operation of vibratory sieve, to alleviate the load of disintegrating machine, when the disintegrating machine current of electric is reduced to predetermined value, connect the current supply circuit of vibrating motor after the time-delay of control device process more automatically.The present invention controls the charging that the charging vibrating motor realizes controlling automatically disintegrating machine by detecting the disintegrating machine current of electric, has improved greatly to produce and has renderd a service.
Description of drawings
Fig. 1 is an electric theory diagram of the present invention
Fig. 2 is a circuit diagram of the present invention
Fig. 3 is the circuit diagram of display board of the present invention
Among the figure:
1, rectification circuit 2, filter circuit 3, amplifying circuit 4, output circuit
5, D/A converting circuit 6, watchdog circuit 7, reset circuit 8, single chip circuit
9, memory circuit 10, keypad 11, display board 12, startup cabinet 13, power panel
14, contactor 15, motor protecter 16, AC power 17, transformer B1
The specific embodiment
According to autocontrol method and two aspects of controller architecture, narrate the concrete technical scheme that the present invention provides respectively below:
1, autocontrol method
Whether the current value that the present invention at first is used to monitor the disintegrating machine current supply circuit overloads, and takes measures to adjust the keying of vibrating motor, reaches the protection motor, improves the purpose of rendeing a service.
The first step, control device takes out current signal from the disintegrating machine current supply circuit, compare with the current protection point value that is stored in the control device, when current in loop value during greater than the current protection point value, control device output protection signal disconnects contactor, cuts off the vibrating motor supply current;
In second step, control device continues the current value in the monitoring disintegrating machine current supply circuit, and when current value was reduced to the 80-90% of protection point value, trigger recovered vibrating motor power supply output after time-delay is finished.
Control device can also be monitored the problem whether phase shortage takes place in the disintegrating machine current supply circuit except whether the current value of monitoring the disintegrating machine current supply circuit overloads.
The first step, if continuous phase shortage 3-5 takes place during second in the current supply circuit, control device starts open-phase protection, disconnects contactor, cuts off the vibrating motor supply current;
In second step, when the monitoring phase shortage, if it is intermittent that phase shortage takes place, the cumulative time enough starts open-phase protection after 5～10 seconds, disconnects contactor, cuts off the vibrating motor supply current, and this step mainly is a certain bad fault that contacts that detects between motor and the power supply.
2, realize the controller architecture of said method
Fig. 1,2,3 shows that controller comprises current transformer, rectification circuit 1, filter circuit 2, amplifying circuit 3, output circuit 4, D/A converting circuit 5, watchdog circuit 6, reset circuit 7, single chip circuit 8, memory circuit 9.Current transformer is installed in any one of startup cabinet 12 and goes up mutually, and the output of current transformer is received the transformer B1 input of rectification circuit 1.Rectification circuit 1, filter circuit 2, amplifying circuit 3, D/A converting circuit 5 connect successively, the input of the output order sheet machine circuit 8 of keypad 10 and D/A converting circuit 5, the output of single chip circuit 8 connects output circuit 4, watchdog circuit 6, reset circuit 7, memory circuit 8 and display board 11 respectively, the output termination contactor 14 of output circuit 4, contactor 14 is installed in the AC power 16.
Show among the figure, rectification circuit 1 comprises transformer B1, resistance R 1, R2, R3, R4, rectifying tube D1, D2, wherein resistance R 1 two ends connect the two ends of B1 level of transformer respectively, 1 pin of B1 level of resistance R 2 one termination transformers, other end connecting resistance R3, R4, resistance R 3, R4, rectifying tube D1, D2 form series loop, wherein B1 level of the cathode connecting transformer of D1 2 pin, negative pole is received filter circuit, and the positive pole of D2 connects amplifying circuit.
Show among the figure, filter circuit 2 is made up of resistance R 15, R5, capacitor C 2, C3, C5, one end of the negative pole of capacitor C 2 and resistance R 15, capacitor C 5 links to each other and ground connection, the positive pole of capacitor C 2 is connected rectification circuit 1 with the other end of resistance R 15, capacitor C 5, connecting resistance R5 then, the positive pole of another termination capacitor C 3 of resistance R 5, the positive pole of capacitor C 3 connects amplifying circuit 3, minus earth.
Show among the figure, amplifying circuit 3 is by amplifier U1, resistance R 6, R7, R8, R9, R10, capacitor C 1 is formed, 4 pin of amplifier U1 connect positive 12V power supply, 11 pin ground connection, 14 pin of one termination amplifier U1 of resistance R 6 and an end of resistance R 7,10 pin of another termination amplifier U1 and the positive pole of capacitor C 1, the minus earth of capacitor C 1, another termination amplifier U1 of resistance R 7 13 pin and an end of resistance R 8, the other end ground connection of R8,9 pin of one termination amplifier U1 of resistance R 9 and an end of resistance R 10, other end ground connection, 8 pin and the D/A converting circuit 5 of another termination amplifier U1 of resistance R 10.Among the embodiment that shows among the figure, amplifier U1 adopts LM224 amplifier chip.
Show among the figure, D/A converting circuit 5 is by analog-digital chip U2, voltage-stabiliser tube D3, resistance R 16, capacitor C 6 is formed, the output of amplifying circuit 3 connects 2 pin of analog-digital chip U2 through resistance R 16, and connect the negative pole of voltage-stabiliser tube D3, the plus earth of voltage-stabiliser tube D3,5 of analog-digital chip U2,6,7,8,12,13 pin ground connection, 9 pin of analog-digital chip U2 are bus data lines, with single chip circuit 8, the bus data line of memory circuit 9 joins, 10 pin of analog-digital chip U2 are bus clock lines, with single chip circuit 8, the bus clock line phase sending and receiving of memory circuit 9,15 pin of analog-digital chip U2 connect 12 pin of single-chip microcomputer U4,14 of analog-digital chip U2,16 pin connect positive 5V power supply, and meet filter capacitor C6, filter capacitor C6 other end ground connection.Among the embodiment that shows among the figure, analog-digital chip U2 adopts the PCF8591 analog-digital chip.
Show among the figure that watchdog circuit 6 is made up of chip U3 and capacitor C 7,1 and 8 pin of chip U3 join, 2 pin connect positive 5V power supply and connect capacitor C 7, capacitor C 7 other end ground connection, the 3 pin ground connection of chip U3,6 pin connect 10 pin of single-chip microcomputer U4, and 7 pin of chip U3 connect 9 pin of single-chip microcomputer U4, and connect reset circuit 7.Among the embodiment that shows among the figure, chip U3 adopts the MAX813 chip.
Show among the figure that reset circuit 7 is made up of capacitor C 4, resistance R 17, connector J5, wherein capacitor C 4 positive poles meet power supply and connector J5, the other end of negative pole connecting resistance R17 and connector J5, resistance R 17 other end ground connection.
Show among the figure; single chip circuit 8 is by single-chip microcomputer U4; crystal oscillator JZ; capacitor C 8; C10; C11; resistance R 11; R12; connector J1; J2; J 3; J4 forms; wherein the 1-8 pin of single-chip microcomputer U4 connects the 1-8 pin of connector J2 respectively; it is the section of charactron on the display board; 13 pin of single-chip microcomputer U4 connect the end of connector J4; J4 is an open-phase protection; connecing motor protecter often opens; the 14-17 pin of single-chip microcomputer U4 connects the 1-4 pin of connector J 3; 18 pin of single-chip microcomputer U4 connect an end and the capacitor C 10 of crystal oscillator JZ; 19 pin of single-chip microcomputer U4 connect the other end and the capacitor C 11 of crystal oscillator JZ; 20 pin of single-chip microcomputer U4 connect power supply ground; 21 pin of single-chip microcomputer U4 connect the clock line of bus and connect and draw resistance R 11; another termination positive supply of resistance R 11; 22 pin of single-chip microcomputer U4 connect the data wire of bus and connect and draw resistance R 12; another termination positive supply of resistance R 12; 22 of single-chip microcomputer U4; 23; 24 pin meet 1 of connector J1; 2; 3 pin; 4 pin of connector J1 connect positive supply; the 5 pin ground connection of connector J1; 40 pin of single-chip microcomputer U4 connect positive 5V power supply and capacitor C 8, the other end ground connection of capacitor C 8.Among the embodiment that shows among the figure, single-chip microcomputer U4 adopts the 89C52 singlechip chip.
Show among the figure that memory circuit 9 is made up of chip U5 and capacitor C 9, the 1-4 pin ground connection of chip U5,5 pin connect bus data line, and 6 pin connect the clock line of bus, 7 pin ground connection, 8 pin connect positive 5V power supply and capacitor C 9, the other end ground connection of capacitor C 9.Among the embodiment that shows among the figure, chip U5 adopts the 24C02 storage chip.
Show among the figure, output circuit 4 is made up of chip U6, triode T9, resistance R 13, R14, solid-state relay J, the 1 pin connecting resistance R13 of chip U6, another termination 5V power supply of resistance R 13,2 pin of chip U6 connect 11 pin of single-chip microcomputer U4, and 3 pin of chip U6 connect the base stage of triode T9, the grounded emitter of triode T9, colelctor electrode connects the negative pole of solid-state relay J, the 4 pin connecting resistance R14 of chip U6, another termination power of resistance R 14 and the positive pole of solid-state relay J.Among the embodiment that shows among the figure, chip U6 adopts the PC817 chip, and triode T9 adopts 9013 triodes.
Show among the figure, display board 11 is by decoder U7, charactron LED1, LED2, LED3, triode T1-T8, current-limiting resistance R18-R26, capacitor C 12, connector J7, J8 forms, wherein 1 of J7,2,3 pin meet 1 of decoder U7 respectively, 2,3 pin, 4 pin of connector J7 are that positive 5V power supply meets 6 of decoder U7, the colelctor electrode of 16 pin and triode T1-T8,5 pin of connector J7 meet 4 of decoder U7,5, one end of 8 pin and capacitor C 12,7 of decoder U7,9,10,11,12,13,14,15 pin are connecting resistance R18-R26 respectively, the other end of resistance R 18-R26 connects the base stage of triode T1-T8 respectively, triode T1, T2, the emitter stage of T3 meets 12 of charactron LED1 respectively, 9,8 pin, triode T4, the emitter stage of T5 meets 14 of charactron LED2 respectively, 13 pin, triode T6, T7, the emitter stage of T8 meets 12 of charactron LED3 respectively, 9,8 pin, 8 pin of connector J8 meet charactron LED1,11 of 11 pin of LED3 and LED2,16 pin, 7 pin of connector J8 meet charactron LED1,10 of 7 pin of LED3 and LED2,15 pin, 6 pin of connector J8 meet charactron LED1,3 of 4 pin of LED3 and LED2,8 pin, 5 pin of connector J8 meet charactron LED1,2 of 2 pin of LED3 and LED2,6 pin, 4 pin of connector J8 meet LED1,1 of 1 pin of LED3 and LED2,5 pin, 3 pin of connector J8 meet LED1,12 of 10 pin of LED3 and LED2,18 pin, 2 pin of connector J8 meet LED1,7 of 5 pin of LED3 and LED2,17 pin, 1 pin of connector J8 meets LED1,4 of 3 pin of LED3 and LED2,9 pin.Among the embodiment that shows among the figure, decoder U7 adopts the 74LS138 decoder chip.
Show among the figure; keypad 10 has button A1-A4, tongue tube GH1-GH4; wherein button A1-A4 adjusts the plus-minus of protection point plus-minus and delay time respectively; tongue tube GH1-GH4 is the same with the function of button A1-A4; be the standby of it; just damage or the bad time spent, can regulate each parameter near button with subsidiary inductive rod at button.
The course of work of the present invention is, when the load of disintegrating machine motor increases, current transformer takes out the signal of telecommunication from the disintegrating machine motor current supply circuit that starts cabinet 12, through rectification circuit 1, filter circuit 3, amplifying circuit 3, D/A converting circuit 5 signal is sent in the single chip circuit 8, singlechip chip 89C52 sends signal through after the comparison process to output circuit 4, the solid-state relay J of output circuit 4 triggers contactor, current supply circuit with vibrating motor, stop the operation of vibratory sieve, to alleviate the load of disintegrating machine.Then, along with the disintegrating machine load is reduced to predetermined value, control device takes out the signal of telecommunication from disintegrating machine motor current supply circuit, makes control loop connect, automatically the motion of Vibration on Start-up motor.
Listed examples of the present invention is intended to the controller application mode further illustrating the method for this automatic control feed of crusher and realize this method, and scope of the present invention is not constituted any restriction.
Claims (9)
1. automatic method of control feed of crusher, it is characterized in that: its adopts following steps to carry out:
A. control device takes out current signal from the disintegrating machine current supply circuit, compare with the current protection point value that is stored in the control device, when current in loop value during greater than the current protection point value, control device output protection signal, disconnect contactor, cut off the vibrating motor supply current;
B. control device continues the current value in the monitoring disintegrating machine current supply circuit, and when current value was reduced to the 80-90% of protection point value, trigger recovered vibrating motor power supply output after time-delay is finished;
C. continuous phase shortage 3-5 taking place during second in the control device monitoring disintegrating machine current supply circuit, start open-phase protection, disconnect contactor, cuts off the vibrating motor supply current;
If it is intermittent that d. phase shortage takes place, the cumulative time, enough 5-10 started open-phase protection after second, disconnected contactor, cut off the vibrating motor supply current.
2. controller of realizing above-mentioned automatic control feed of crusher method, it is characterized in that: it comprises current transformer, rectification circuit [1], filter circuit [2], amplifying circuit [3], output circuit [4], D/A converting circuit [5], watchdog circuit [6], reset circuit [7], single chip circuit [8], memory circuit [9], go up the installation current transformer mutually at any one of startup cabinet [12], the output of current transformer is received the transformer input of rectification circuit [1], rectification circuit [1], filter circuit [2], amplifying circuit [3], D/A converting circuit [5] connects successively, the input of the output order sheet machine circuit [8] of D/A converting circuit [5], the output of single chip circuit [8] connects output circuit [4] respectively, watchdog circuit [6], reset circuit [7], memory circuit [9], the output termination contactor [14] of output circuit [4], contactor [14] is installed in the AC power [16].
3. the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 2, it is characterized in that: described rectification circuit [1] comprises transformer B1, resistance R 1, R2, R3, R4, rectifying tube D1, D2, wherein resistance R 1 two ends connect the two ends of B1 level of transformer respectively, 1 pin of B1 level of resistance R 2 one termination transformers, other end connecting resistance R3, R4, resistance R 3 one terminating resistor R4, the negative pole of another termination D1, the positive pole of another termination rectifying tube D2 of R4, B1 level of the cathode connecting transformer of rectifying tube D1 2 pin, negative pole is received filter circuit [2], and the positive pole of rectifying tube D2 connects amplifying circuit [3], and negative pole links to each other with the positive pole of rectifying tube D1; Described filter circuit [2] is made up of resistance R 15, R5, capacitor C 2, C3, C5, capacitor C 2, resistance R 15, capacitor C 5 are in parallel, an end in parallel connects rectification circuit [1], other end ground connection, an end in parallel is connected with amplifying circuit [3] by resistance R 5 again, the anodal connecting resistance R 5 of capacitor C 3, minus earth.
4. the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 3, it is characterized in that: described amplifying circuit [3] is by amplifier U1, resistance R 6, R7, R8, R9, R10, capacitor C 1 is formed, 4 pin of amplifier U1 connect power supply, 11 pin ground connection, 14 pin of one termination amplifier U1 of resistance R 6 and an end of resistance R 7,10 pin and the capacitor C 1 of another termination amplifier U1, another termination amplifier U1 of resistance R 7 13 pin and an end of resistance R 8, resistance R 9 connects 9 pin and the resistance R 10 of amplifier U1, and resistance R 10 connects 8 pin and the D/A converting circuit [5] of amplifier U1.
5. the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 4, it is characterized in that: D/A converting circuit [5] is by analog-digital chip U2, voltage-stabiliser tube D3, resistance R 16, capacitor C 6 is formed, the output of amplifying circuit [3] connects 2 pin of analog-digital chip U2 through resistance R 16, and connect the negative pole of voltage-stabiliser tube D3, the plus earth of voltage-stabiliser tube D3,5 of analog-digital chip U2,6,7,8,12,13 pin ground connection, 9 pin of analog-digital chip U2 are bus data lines, with single chip circuit [8], the bus data line of memory circuit [9] joins, 10 pin of analog-digital chip U2 are bus clock lines, with single chip circuit [8], the bus clock line of memory circuit [9] joins, 15 pin of analog-digital chip U2 connect 12 pin of single-chip microcomputer U4,14 of analog-digital chip U2,16 pin connect power supply, and meet filter capacitor C6.
6. the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 5, it is characterized in that: described watchdog circuit [6] is made up of chip U3 and capacitor C 7,1 and 8 pin of chip U3 join, 2 pin connect power supply and connect capacitor C 7, the 3 pin ground connection of chip U3,6 pin connect 10 pin of single-chip microcomputer U4, and 7 pin of chip U3 connect 9 pin of single-chip microcomputer U4, and connect reset circuit [7]; Described reset circuit [7] is made up of capacitor C 4, resistance R 17, connector J5, and wherein capacitor C 4 positive poles meet power supply and connector J5, the other end of negative pole connecting resistance R17 and connector J5; Described memory circuit [9] is made up of chip U5 and capacitor C 9, the 1-4 pin ground connection of chip U5, and 5 pin connect bus data line, and 6 pin connect the clock line of bus, 7 pin ground connection, 8 pin connect power supply and capacitor C 9.
7. the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 6, it is characterized in that: described single chip circuit [8] is by single-chip microcomputer U4, crystal oscillator JZ, capacitor C 8, C10, C11, resistance R 11, R12, connector J1, J2, J 3, J4 forms, wherein the 1-8 pin of single-chip microcomputer U4 connects the 1-8 pin of connector J2 respectively, 13 pin of single-chip microcomputer U4 connect the end of connector J4, the 14-17 pin of single-chip microcomputer U4 connects the 1-4 pin of connector J 3, the 5 pin ground connection of connector J 3,18 pin of single-chip microcomputer U4 connect an end and the capacitor C 10 of crystal oscillator JZ, 19 pin of single-chip microcomputer U4 connect the other end and the capacitor C 11 of crystal oscillator JZ, the 20 pin ground connection of single-chip microcomputer U4,21 pin of single-chip microcomputer U4 connect the clock line of bus and connect and draw resistance R 11, another termination power of resistance R 11,22 pin of single-chip microcomputer U4 connect the data wire of bus and connect and draw resistance R 12, another termination power of resistance R 12,22 of single-chip microcomputer U4,23,24 pin meet 1 of connector J1,2,3 pin, 4 pin of connector J1 connect power supply, the 5 pin ground connection of connector J1,40 pin of single-chip microcomputer U4 connect power supply and capacitor C 8.
8. the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 7, it is characterized in that: described output circuit [4] is by chip U6, triode T9, resistance R 13, R14, solid-state relay J forms, the 1 pin connecting resistance R13 of chip U6, another termination power of resistance R 13,2 pin of chip U6 connect 11 pin of single-chip microcomputer U4,3 pin of chip U6 connect the base stage of triode T9, the grounded emitter of triode T9, colelctor electrode connects the negative pole of solid-state relay J, the 4 pin connecting resistance R14 of chip U6, another termination power of resistance R 14 and the positive pole of solid-state relay J.
9. the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 8, it is characterized in that: the controller of the above-mentioned automatic control feed of crusher method of realization according to claim 11, it is characterized in that: it also has display board [11], display board [11] is by decoder U7, charactron LED1, LED2, LED3, triode T1-T8, current-limiting resistance R18-R26, capacitor C 12, connector J7, J8 forms, wherein 1 of J7,2,3 pin meet 1 of decoder U7 respectively, 2,3 pin, 4 pin of connector J7 are that positive 5V power supply meets 6 of decoder U7, the colelctor electrode of 16 pin and triode T1-T8,5 pin of connector J7 meet 4 of decoder U7,5, one end of 8 pin and capacitor C 12,7 of decoder U7,9,10,11,12,13,14,15 pin are connecting resistance R18-R26 respectively, the other end of resistance R 18-R26 connects the base stage of triode T1-T8 respectively, triode T1, T2, the emitter stage of T3 meets 12 of charactron LED1 respectively, 9,8 pin, triode T4, the emitter stage of T5 meets 14 of charactron LED2 respectively, 13 pin, triode T6, T7, the emitter stage of T8 meets 12 of charactron LED3 respectively, 9,8 pin, 8 pin of connector J8 meet charactron LED1,11 of 11 pin of LED3 and LED2,16 pin, 7 pin of connector J8 meet charactron LED1,10 of 7 pin of LED3 and LED2,15 pin, 6 pin of connector J8 meet charactron LED1,3 of 4 pin of LED3 and LED2,8 pin, 5 pin of connector J8 meet charactron LED1,2 of 2 pin of LED3 and LED2,6 pin, 4 pin of connector J8 meet LED1,1 of 1 pin of LED3 and LED2,5 pin, 3 pin of connector J8 meet LED1,12 of 10 pin of LED3 and LED2,18 pin, 2 pin of connector J8 meet LED1,7 of 5 pin of LED3 and LED2,17 pin, 1 pin of connector J8 meets LED1,4 of 3 pin of LED3 and LED2,9 pin.
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| CN2010102579951A CN101912807B (en) | 2010-08-20 | 2010-08-20 | Method and controller for automatically controlling feed of crusher |
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