CN1105787A - Linear motor and its electrical control system for magnetic field scanning physiotherapy machine - Google Patents
Linear motor and its electrical control system for magnetic field scanning physiotherapy machine Download PDFInfo
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Abstract
The present invention relates to a linear motor for magnetic field scanning physiotherapy machine and its electric control system. Its linear motor is divided into two kinds of vertical mangetic type and transverse type, consisting of magnetic pole magnetizing coil, Nd-Fe-B steel magnet, stator magnetic pole iron-core, magnetic yoke and magnetic pole support. Its control system has two types of digital logic system and microcomputer system, consisting of pulse generator, decoding, main control, operation, timing, speed-regulating, speed display, acousto-optic indication, zone selection, scanning selection, pulse distribution and amplification circuit. Said invention reduces working noise, raises control function, simplifies mechanism, and raises operation performance.
Description
The present invention relates to a kind of Nd-Fe-B permanent magnetic linear electric motors and electrical system thereof of medical magnetic field scanning physiotherapy machine, belong to medicine equipment linear electric motors drive control system field.
The present patent application people has applied for " a kind of magnetotherapy method and field scan formula physiotherapy machine " patent of invention on August 5th, 1993 to Patent Office of the People's Republic of China, the transmission adopted rotary electromotor of this physiotherapy machine of application number 93109226.4. is through the mechanical reduction transmission, two magnets that drag the physiotherapy machine are done straight reciprocating motion, in process on probation, find that running noises is bigger, this physiotherapy electrical-mechanical control system does not have the stepless time adjustment function, thereby influenced the operating characteristics and the effect of physiotherapy machine, need the motor drive control system of this physiotherapy machine have been improved.
For realizing that above-mentioned improvement requires the present invention to develop the synchronous stepping rectilinear motion of a kind of Nd-Fe-B permanent magnetic motor and replaces physiotherapy machine rotary electromotor dragging system, reach the low noise purpose of operation.Control system adopts stepless time adjustment to reach easy to operate, effective purpose.
A kind of linear electric motors and electric control system that is used for magnetic field scanning physiotherapy machine of the present invention, two kinds of perpendicular magnetic-type of its sub linear motor and horizontal magnetic-types, it is by magnetic pole magnetizing coil 3, Nd-Fe-B magnet steel 4, magnetic pole of the stator iron core 8, yoke 11, magnetic pole bearing 14 constitutes, electric control system is divided two kinds of Digital Logic Circuits System and Control Systems of Microcomputer, it is by position display decoding circuit 15, continuous impulse generator 16, governor circuit 17, timing and display circuit 18, velocity display circuit 19, acousto-optic is informed circuit 20, alignment circuit 21, timing circuit 22, section is selected circuit 23, scan mode is selected circuit 24, function circuit 25 pulse distribution and amplifying circuit 26 constitute, pulse distribution amplifying circuit 26 is placed in the main circuit case 6, other control circuits are placed in the control cabinet 5, and with linking lead 7 control circuit is connected with the main circuit case, the high-power signal that the main circuit case is exported is sent into the motor coil system 27 that is made up of magnetic pole magnetizing coil 3.
Fig. 1 magnetic field scanning physiotherapy machine overall structure schematic diagram end view
Fig. 2 magnetic field scanning physiotherapy machine overall structure schematic diagram front view
Fig. 3 erects magnetic-type structure of the linear motion actuator schematic diagram front view
Fig. 4 erects magnetic-type structure of the linear motion actuator schematic diagram front view
The horizontal magnetic-type structure of the linear motion actuator of Fig. 5 schematic diagram top view
The horizontal magnetic-type structure of the linear motion actuator of Fig. 6 schematic diagram elevation cross-sectional view
The horizontal magnetic-type structure of the linear motion actuator of Fig. 7 schematic diagram end view
Fig. 8 physiotherapy machine linear electric motors drag the electrical system theory diagram
Fig. 9 electric control system Digital Logical Circuits theory diagram
Figure 10 electric control system microcomputer system theory diagram
Figure 11 electric control system microcomputer system monitor flow chart
Figure 12 example 1 electric control box panel layout
Figure 13 example 1 electrical principle is always schemed
Figure 14～Figure 19: Figure 13 appropriate section circuit enlarged drawing.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29- 30 31 32 33 34 35（） 36 37 38 39 4041 42 43CPU 44 45RAM/ROM 46I/O 47 48 49 50 51 52、53 54 55 56 57 58 59 60 61 62 63 64 65 66/ 67 68 69 70 71
Linear electric motors of the present invention and electric control system thereof are compared with former technology and are mainly had the following advantages and good effect
1. reduced running noises: (1) has removed former technology High Velocity Rotating Motor and mechanical reduction transmission system from, and with the direct driving machinery load of linear electric motors, and the linear electric motors running noises is minimum. (2) with the Electric device with a contact control in the alternative former technology of the electronic circuit of contactless machinery-free action, eliminated the work noise of control circuit.
2. simplified mechanism: (1) has removed former electric rotating machine and deceleration transmission system from, by the direct driving machinery load of linear electric motors.(2) electronic circuit system uses integrated circuit (IC) chip, and printed circuit board (PCB) and membrane switch technology have been simplified the structure of circuit.
3. linear electric motors bringing onto load stepless speed regulation in very large range, former technology does not have these functions.
4. owing to adopt logical circuit or microcomputer system, greatly enriched controlled function: can realize regularly showing with timing, the indicator light of stepless speed regulation and speed display position shows and indicator light blanking control, continuously operation is moved back operation with stepping, step, startup and finishing control, end and time to, return the initial position stop motion, acousto-optic is informed and just the position is selected, operation suspends with recover, omnidistance scanning scans selection and scan the section selection function with section.
Narrate embodiments of the invention below in conjunction with accompanying drawing:
The magnetic pole of the stator of linear electric motors unshakable in one's determination 8 can vertically be placed the vertical magnetic field of generation with the electromagnet that magnetic pole magnetizing coil 3 is formed, also can laterally place the generation transverse magnetic field, in view of the above, be divided into perpendicular magnetic-type and horizontal magnetic-type, Fig. 1 and Fig. 2 erect the end view and the front view of the magnetic field scanning physiotherapy machine overall structure schematic diagram that the magnetic-type linear electric motors drag for employing.Fixing Nd-Fe-B permanent magnetic steel 4 below the magnet steel support base plate 12 of roller 9 supports, being subjected to electromagnetic force when magnetizing coil 3 energisings make pole core 8 produce magnetic makes roller 9 move along guide rail 10, guide rail 10 is fixed on the bottom of lathe bed 1, thereby make base plate 12 produce rectilinear motion, and make the entire bracket motion by column 2.Feed electric current for according to certain rules each coil of linear electric motors, can promote magnet steel 4 moving linearlies, its speed, direction, range of movement produce frequency, phase sequence and the commutation determining positions of the pulse voltage of electric current by being added to each coil.
Fig. 3 and Fig. 4 are the front view and the end view of perpendicular magnetic-type structure of the linear motion actuator schematic diagram, the vertical linear electric motors of placing of electromagnet are made of pole core 8, magnetizing coil 3, yoke 11, the Nd-Fe-B magnet steel 4 that is placed on the pole core top, the support base plate 12 that magnet steel 4 is housed is supported by roller 9, move along guide rail 10, Fig. 5, Fig. 6 and Fig. 7 are top view, elevation cross-sectional view and the side diagrammatic sketch of horizontal magnetic-type structure of the linear motion actuator schematic diagram.The linear electric motors that electromagnet is laterally placed are made of pole core 8, magnetizing coil 3, the Nd-Fe-B magnet steel 4 that is placed on the pole core both sides, pole core bearing 14, the support base plate 12 that magnet steel 4 is housed is supported by roller 9, move along guide rail 10, the position of drawing Nd-Fe-B magnet steel 4 in the drawings, when the coil electricity of unshakable in one's determination (1) in the magnetic pole 8 produce with magnet steel 4 in the different in nature magnetic field of salient pole (1), attract magnet steel 4 to move and move a step, displacement is d '.Then energising produces magnet steel salient pole (2) (3) (4) suction to (2) (3) (4) pole coil, and the traction magnet steel moved to right for three steps, moves to right through four steps, and moving past distance is a pole span τ.Then to coil (2) (3) (4) (5) energising one by one in succession, the traction magnet steel moves the distance of four a steps τ again.Reverse as the coil electricity order, then magnet steel moves to left.Four salient poles of magnet steel have the heteropolarity arrangement to arrange as the NNNN dual mode as NSNS and same polarity.Magnetizing coil energising rule is i, (i+1), and (i+2), (i+3); (i+1), (i+2), (i+3), (i+4) ... each all is to be excitatory generation of pole coil and the magnet steel salient pole heteropole magnetic of d ' with magnet steel salient pole potential difference, and determines the direction of exciting curent thus.Perpendicular magnetic-type magnetic steel of motor still is subjected to downward inoperative suction except that being subjected to horizontal operation thrust, this suction has improved motion parts stability but also increased the weight of the pressure of 9 pairs of guide rails 10 of roller.Horizontal magnetic-type structure magnet steel places both sides, and inoperative suction direction is offset mutually on the contrary, has alleviated the pressure of pair of rollers guide rail, but because of there not being the stability that vertical suction has reduced motion parts.The present invention is used to drag the linear electric motors of two magnets of physiotherapy machine to adopt above-mentioned two kinds of versions, forms two kinds of products.
Linear electric motors magnetic pole magnetizing coil 3 rule is on request imposed the voltage of requirement, and the task of producing electric current is finished by electrical system.Main circuit is placed in the main circuit case 6 in the electrical system, and control circuit is placed in the electric control box 5, with lead 7 control signal is sent into main circuit, and the shift pulse voltage of main circuit output is received each magnetizing coil, the control motor movement.Electric control system can be the Digital Logical Circuits system, also microcomputer system.Logical device in the Digital Logical Circuits system can also can also can use programmable matrix logic GAL, PAL chip to realize with TTL74/54 series IC chip with CMOS4000/4500 series IC chip.In the microcomputer system in the hardware system central processing unit CPU 43, internal storage RAM/ROM45, input/output interface circuit I/O46 can use Intel8000 series, Z80 series microcomputer chip, MCS series monolithic, PIC16C5X series monolithic to constitute.The linear electric motors of two kinds of structures can be controlled with Digital Logical Circuits or microcomputer system.
Fig. 8 is the electrical system schematic block diagram.Main circuit is made of pulse distribution and amplifying circuit 26 in the electrical system, to become the n bit shift pulse to Yn from the continuous impulse of governor circuit 17 by Y1, this pulse is through amplifying, has enough voltage, receive on n the magnetizing coil, can produce to the enough gravitation of magnet steel salient pole the dragging motor load.Step-by-step impulse is produced by continuous impulse generator 16, and its frequency is subjected to the control of governor circuit 17.Alignment circuit 21 can carry out electrodeless adjusting to the frequency of continuous impulse CP0, and can sweep speed be shown at display circuit, timing circuit 22 can be set the running time of physiotherapy machine, timing and display circuit illustrate the time, the scanning section that section selects circuit 23 optional theorems to treat, scan mode circuit 24 can be selected continuous sweep single step campaign, single step advances/working method that single step is moved back, function circuit 25 can start motor/finish, halt/recovery operation, and motor returned behind the initial position stop motion and sends acousto-optic alert signal 20 when treatment finished.Output signal Yi converts position signalling to through decoder 15 and is shown by indicator light LED.Fig. 9 is the digital electronic system block diagram.The Digital Logical Circuits system selects circuit 32, pulse distributor 33, master switch system 34, central control unit 35, velocity-measuring system 36, timer 37, FM circuit 38, continuous impulse generator 39, working mode selection circuit 40, clock source 41, drive circuit power supply 42 to form by motor coil system 27, indicator lamp system 28, pulse distribution-indicator lamp system decoder 29, control circuit power supply 30, power amplifier 31, section.42 pairs of motor coils of drive circuit power supply provide electric current; Control circuit power supply 30 is powered to digital circuit; Continuous impulse generator 39 is carried step-by-step impulse to central control unit (being governor circuit) 35 under FM circuit 38,40 controls of working mode selection circuit; Velocity-measuring system 36 tests the speed under the commutator pulse control that clock source 41 is sent here and shows; Clock pulse is through timer 37 timing and show the countdown time, and will the time send into governor circuit to signal; Section selects circuit 32 that the feedback signal of pulse distributor 33 is fetched, the commutation of control governor circuit.Governor circuit output step-by-step impulse is through pulse distributor 33 and power amplifier 31 pushers dynamic load-motor coil system 27.Driving pulse makes stepping position indicator lamp system 28 show stepping position through pulse distribution-indicator lamp system decoder 29.34 pairs of governor circuits of master switch system are operated control and are accepted feedback information FEEDBACK CONTROL governor circuit.Figure 10 is the hardware system that microcomputer system block diagram microcomputer system is made of central processing unit CPU 43, driving amplifying circuit 44, internal storage RAM/ROM45 input/output interface circuit I/O46 operation control box 47, pulse generator 48, and the software systems that the read only memory ROM district storage system monitoring program in internal storage RAM/ROM45 constitutes are formed.Central processing unit CPU 43, internal storage RAM/ROM45, input/output interface circuit I/O46 connects into micromachine system by address bus AB, control bus CB and data/address bus DB.Operation control box 47 is sent various masters toward interface and is made signal and receiving feedback signals, drives the step-by-step impulse amplification rear drive motor operation of amplifying circuit 44 with the output of I/O mouth.Pulse generator 48 produces clock pulse CP, drive system work.Read only memory ROM district storage system monitoring program in the internal storage 45, the RAM district is in order to temporary running status, and the master makes intermediate data such as signal.System works under monitoring program control.
Figure 11 is the monitoring program flow chart.
Example 1: adopt the perpendicular synchronous step-by-step linear electric motor of magnetic-type of neodymium iron boron, Nd-Fe-B magnet steel is that heteropolarity is arranged SNSN, and the physiotherapy machine that drags runs well and the operating state of operation that lives through 14 hours continuously in November, 93.The coil electricity rule is iN, (i+1) S, (i+2) N, (i+3) S; I represents the pole core sequence number in the formula, and N and S represent to make the magnetizing coil polarity of N of generation unshakable in one's determination and S.Perhaps write as logical expression iN=y
[i+ (i+1) * 3]Vy
[i+ (i-3) * 3], iS=y
[i+ (i-2) * 3]Vy
[i+(i-4) * 3]Electric cabinet panel layout shown in Figure 12 can be in order to the explanation electric control function.Regularly: after 50 setting physiotherapy times, the 49 display setting times of display when pressing start button 60, decontrol this button motor and bring into operation the display countdown by code switch.Timing is to zero, and motor promotes two magnets and returns stop motion behind the initial position, sends sound (loudspeaker 63) light (indicator light 64) alert signal simultaneously.Speed governing: adjusting knob 52,53 can stepless speed regulation in 5 meters/minute～15 meters/minute scopes, display 51 illustrates institute's speed governing degree, traffic coverage is selected: row's button limits motor operation right-hand member on the selected switch 67 of section, following row switch limits left end, and 1, motor can limit interval coming and going with 66 groups of whole process/section selector switch, dial 2, motor is done omnidistance coming and going.Indicator light 69 illustrates motor position, and when switch 68 was put 2, indicator light stopped to show.Operation Mode Selection: mode selector switch 55 is put 1 side, the motor continuous motion; Put 2 sides and then be single step run, at this moment whenever by single step button one step of 56 motor movements, its direction is determined by switch 54.Put the left side for entering the right side for moving back.The switch top respectively has two indicator lights that operating state is shown.Single step button top indicator light LCP shows the pulse signal operation: press start button 60 Displaying timers, motor brings into operation and timing during relieving, removes halted state simultaneously.Stop by pause button 58 motors and timing, remove by recovery button 57 and suspend, motor and timing are resumed operation.Press conclusion button 59 timing and show vanishing, shutdown and acousto-optic were informed when motor returned initial position.Initial position selector switch 65 is put 1 side, is initial position with the right-hand member.Putting 2 sides, is initial position with the left end
Figure 13 is electrical schematic diagram, motor windings (1N; 2N; 2S...31N; 31S; 32S) drive triode TC1-TC64 power supply by power amplifier, fly-wheel diode (Di1N...Di32S) back-pressure bleed off diode (DG1...DG64) intercepts diode (Db1...Db64) and bypass resistance (RG1...RG64) is formed protective circuit.Penultimate stage triode (T2 1...T2 64) output 300mA electric current promotes power discharging transistor.Circuit is pressed 1N, 2S, 3N, 4S; 2N, 3S, 4N, the energising of 5S... rule makes the motor positive movement.This rule is realized by second pulse distributor circuit UC/LY.Continuous impulse CP1 connects the pulse sequence that the displacement of y1...y128 in proper order can be translated into above-mentioned requirements by table 1 relation through obtaining shift signal y1...y128 behind the primary distribution circuit after triode T1 1...T1 128 amplifies.Pulse primary distribution circuit is by tetrad forward-backward counter V6, four lines-16 line decoder V4, and JK flip-flop V5, and triple gate V1, compositions such as V3 realize governor circuit three inputs and the continuous impulse CP1 of door U2 output are become the conversion of y1...y128.When system powered on, initialization capacitor C V put 1 with whole JK flip-flop, and promptly 4-16 decoder Enable Pin E=1 is in disarmed state, thereby did not have driving tube Tcx conducting, and the winding no power is in disarmed state.Press start button A2, the V6 zero clearing, lowest order (the rightest V5 among the figure) JK flip-flop zero clearing, other put 1, make lowest order decoder V4 effective, y1=1.As at the motor A2 that presses in service, then make shift pulse begin displacement, and make the decoder output of arbitrary non-lowest order of just effective output at that time invalid by y1.When governor circuit commutation signal CP2=1, counter V16 add-subtract control end M=1, for adding counting, the Enable Pin of putting triple gate V3 simultaneously is effective, the CP1 pulses switch is become from right to left the displacement pace pulse Yx of (promptly by low level to a high position).When the highest order of some 4-16 decoders output effectively when (being y16 y32 y48 y64...), this signal puts 1 through the JK flip-flop J end that triple gate V3 will control this decoder, the K end of the contiguous JK flip-flop in left side puts 1, when next CP1 pulse front edge arrives, make these two JK flip-flop put respectively 1 with put 0, thereby make the invalid and left side decoder output of this bit decoder output effectively, pace pulse is exported by high bit decoder.So just realized the displacement pace pulse by lowest order y1 stepping displacement to highest order y128.When " whole process-section " selector switch K2 placed " whole process " side, when y128=1, after this signal was sent into governor circuit, CP2 promptly became 0.Subtract counting so said process becomes, the lowest order of each 4-16 decoder control JK flip-flop put one's own department or unit invalid and put the right side contiguous one effectively, realize pace pulse stepping displacement from left to right.When pace pulse moved left to a certain Yj, CP2 became 0, changes into moving to right; CP2 puts 1 and changes into and moving to left during the Yi of a certain position to the right side, has just realized the section motion to the Yj interval at Yi, and eight selector switch K1 are divided into nine sections with the whole process of pace pulse, can be by the position of optional commutation signal Yi of eight bit switches that two selector buttons are arranged and Yj.At this moment K switch 2 is put the district and is selected a side, the end points commutation signal Yi and the Yj of section can be input to governor circuit.The pulse CP1 that is input to the primary distribution circuit is produced by pulse generator.Reverser V14 and RC circuit form self-excited oscillator, produce continuous impulse CP10, through 200 frequency division (U11, U10, U9) CP101 after enters two inputs and a door U8, and " continuously-single step " when selector switch K4 puts right-hand " continuously " side, puts 1 by the rest-set flip-flop U12 of its control, above-mentioned and Men Kaimen, CP101 sends through this door.Also open the door with door U2 as three inputs, promptly have continuous impulse CP1 to send into the pulsatile once distributor circuit.If K4 places left " single step " side, rest-set flip-flop U12 puts 0, and above-mentioned and door is closed, its left side and Men Kaimen U7, tremble the pulse that monopulse generator that rest-set flip-flop U13 constitutes produces by interlock button A1 and disappearing and to enter decoding circuit, produce the shift pulse of single step.Pulse indication light-emitting diode LY1-LY128 is connected in the amplification grade circuit, shows the shift pulse position.The BCD that the CP102 of CP10 behind two divided-frequency U35 sends into the speed display system adds 1 counter U37, drives seven-segment display through BCD-seven-segment decoder U34, shows motor average speed.By the time be that the commutator pulse of 100mS triggers monostable flipflop U38 in cycle of providing of main pulse source, when its Q end becomes zero, the counter data decoder of packing into is shown by display, and the rising edge when Q recovers triggers second level monostable flipflop U39, and its Q output is with counter O reset.Therefore display is depicted as the number of CP102 among the 200mS.Because step-length is 1/4 pole span, promptly a step pitch is from being 200/(3 * 4) mm, requiring motor average speed is that speed is 15 meters/timesharing, moves time t15=(200 * 60 that move a step)/(15 * 3 * 4) ms=200/3mS, then the period T 150=1/3mS of CP10.The cycle of speed count pulse CP102 is 2/3mS, amounts to number N=100/(2/3 in 100mS)=150,150 pulse numbers that demonstrate just were 15.0 before decimal point is located at lowest order, had represented 15 meters/minute velocity amplitude of motor.The CP10 period T 50=1mS of corresponding 5 meters/minute motor speed.So require the pulse period of self-excited oscillator to should be 0.3mS-1mS, the period T 15=66.6mS-200mS of CP1.The time main pulse by the time main pulse generator produce.50 hertz of civil powers are exported by secondary NB4 through transformer, pulsating voltage through obtaining after resistance bridge circuit left branch dividing potential drop behind the bridge rectifier is added to voltage comparator U42 in-phase input end, its rp input signal is taken from the right side bleeder circuit by diode-isolated, it is the stable DC signal that flat wave capacitor CT makes this signal, so obtain the time main pulse that the cycle is 10mS at the voltage comparator output, inverter U28 shaping and 10 frequency dividers exported through Schmidt trigger obtain the 100mS commutator pulse.Obtain 1 pulse per second (PPS) through 10 frequency dividers again, enter by BCD through control gate U29 and subtract 1 counter U26, senary subtracts 1 counter U27, and BCD-seven-segment decoder U25 and seven-segment display U22 demonstrate the countdown timing.When timing returned zero, the high order end highest order was sent the control signal of " time to " and is sent into governor circuit.Motor commutation is controlled by three two inputs and the circuit that door and rest-set flip-flop U6 constitute.K switch 4 places a continuous side, press start button and make out-stop rest-set flip-flop U19 to put at 1 o'clock, commutation signal Yi, the Yj rest-set flip-flop U6 that will commutate puts 1 or zero clearing, its Q end output is exactly the CP2 signal of receiving the V6M end, and CP2 and CP2 connect the Enable Pin of returning triple gate V1 and advancing triple gate V3.Yi, the monostable flipflop U5 that delays time is triggered in the forward position of Yj, and three inputs are closed with a door U2, stops to carry the CP1 pulse to decoding circuit the mechanical delay buffering during with the realization motor commutation.When K switch 4 placed single step one side, Yi, Yj led to the control gate U3 of RS trigger end, and U4 closes, and removed the location commutation function, and its advance and retreat direction is determined by direction selector switch K3.After pressing stop button A3, the control gate U1 of Yi closes, and can not commutate in the Yi position motors, when having only to initial position Y1=1, just can with door U15 whole JK flip-flop be put 1 through two inputs, makes all primary distribution decoding outputs invalid, the motor stop motion.Trigger simultaneously and inform acousto-optic circuit, produce alert signal.The startup of motor stops by button A2, A3 control.When pressing the button A2 that is connected to rest-set flip-flop S end, with counter V6 zero clearing, the zero setting of lowest order JK flip-flop, thus make lowest order 4-16 decoder export effective y1=1, and other 4-16 decoder outputs are invalid.It is zero that the counter U26 that puts high two (branch timing) through inverter U23 puts number end LD, and the timing value that code switch U32 is set is inserted counter and shown, will hang down two timing counter U27 U26 zero clearing second again through inverter.1 signal of rest-set flip-flop U19Q end makes startup indicator light L6 bright, through inverter U16 two inputs is closed with door U15 simultaneously.The timer time is touched the R end to sending the borrow signal behind inverter U24, makes out-stops rest-set flip-flop U19 to reset, or also RS can be resetted by A3, simultaneously with the timing counter zero clearing.After rest-set flip-flop resetted, the two input control gate U1 that the three input control gate U30 and the yi of control pulse per second (PPS) door led to the S end closed, and stop timing, and yi lost efficacy.Only when y1=1, just make the motor stop motion.By circuit as seen, when selecting single step run, ternary input control gate U30 also closes, and stops timing.The input running hours, timing is just proceeded.Motor is in service will to suspend rest-set flip-flop U21 zero setting when pressing pause button A5, closed by two three inputs of its control and a door U21 U30, and sprocket pulse and CP1 pulse all are blocked, and stop timing and motion, and have indicator light to represent.By behind the recovery button A4, rest-set flip-flop puts 1, recovers timing and motion, and indicator light is changed to the indication that returns to form.When pressing start button A2, remove halted state simultaneously.The circuit that uses CMOS4000/4500 series IC chip to constitute selects decoder CD4514V4 generation shift pulse, JK flip-flop CD4027V5, triple gate CD4503V1V3 to control direction of displacement by tetrad forward-backward counter CD4516V6,16, and timing and tachometer circuit are by BCD counter CD40192.BCD-seven-segment decoder CD4511, seven-segment display constitutes, Schmidt exports inverter CD40106 and constitutes the RC oscillator, produce continuous impulse, rest-set flip-flop CD4043, two inputs are exported NAND gate CD4093 with door CD4081 three inputs and door CD4073, two input Schmidts, monostable flipflop CD4538 constitutes the main control circuit that makes.Amplify with power and promote utmost point employing NPN silicon triode.Table 1 list the electrical schematic diagram components and parts and name of parts thin, table 2 is listed used logical device model.
Total figure components and parts of table 1 electrical principle and name of parts are carefully shown
The sequence number components and parts, unit number title quantity
1 RB1....RB64 current-limiting resistance 2.2K 2W 64
2 LB....LB64 indicate light-emitting diode 64
3 ULB/C main circuit indicator light decoding units 1
4 C1....C64 field winding φ=0.35 N-3500 64
5 Ci1....Di64 fly-wheel diodes 64
6 DG1....DG64 back-pressure diodes 64
7 Bb1....Db64 intercept diode 64
8 RG1....RG64 cascading water diodes 64
9 TC1....TC64 power amplifiers drive diode 64
10 R2 1....R2,64 current-limiting resistances 64
11 T2 1....T2 64 not prime promote triode 64
12 UC/LY pulse secondary distribution decoding units 1
13 LY1....LY128 pulsatile once indicator lights 128
14 RI1....RI128 current-limiting resistance 10K 1/8W 128
15 TI1....TI128 pulsatile once amplifying stage triodes 128
16 Rb1....Rb128 pulsatile once amplifying stage input resistance 10K 1/8W 128
17 K1 section selector switches (8) 2
The omnidistance .. section selector switches of 18 K2 (dpdt double-pole double-throw (DPDT)) 1
19 V1 return effective triple gate 14
The 20 V2 .. that advances returns interlocking inverter 1
21 V3 effective triple gate 14 that advances
22 V4,4 line .., 16 line decoders 8
23 V5 advance .. retreat control JK flip-flop 8
24 RG earth resistance 10K 1/8W 34
25 V6 tetrad forward-backward counters 8
26 U1, U3, U4, U7, U8, U15, U29 two inputs and door 7
27 U2, U30 three inputs and door 2
28 D1....D14 control diode 14
29 L1....L15 indicator lights 15
30 T1....T4 index signal amplifying triodes 4
31 RE amplifying stage input resistances 4
32 RL current-limiting resistances 14
The 33 K3 .. that advances returns selector switch (single-pole double throw) 1
34 K4 motion mode selector switches (dpdt double-pole double-throw (DPDT)) 1
35 U5 commutation time-delay monostable flipflop 1
36 U6 commutation control rest-set flip-flop 1
37 U12 motion mode rest-set flip-flops 1
38 U13 monopulse generators 1
39 A1 pulse generation buttons 1
40 U9,U14,U16,U20
U23, U24, U28, U31, U36 reverser 9
41 SP loudspeaker 1
42 U17 acoustic signal generating units 1
43 U18, U19, U20 rest-set flip-flop 3
44 A2 start buttons 1
45 A3 stop buttons 1
46 CV power-up initializing electric capacity 6
47 A4 recovery button 1
48 A5 pause buttons 1
49 U22, U33 seven-segment display 7
50 U25, U34 BCDL.. seven-segment decoder 7
51 U26 BCD subtract 1 counter 3
52 U27 senaries subtract 1 counter 1
53 U32 BCD code switchs 2
54 U37 BCD add 1 counter 3
55 U38, U39 monostable flipflop 2
56 U42 voltage comparators 1
57 RV0 oscillation resistances 1
58 RV1, RV2 frequency of oscillation regulator potentiometer 2
59 CP oscillating capacitances 1
60 U10, U11, U40, U41 ten frequency dividers 4
61 U9, U35 T' trigger 1
62 DT rectifier diodes 4
63 RT1....RT4 divider resistances 4
64 D14 isolating diodes 1
65 CT flat wave capacitors 1
Winding 1 of 66 BN1 power transformers
67 BN2, BN3, BN4 transformer secondary winding 3
68 KU supply sockets 1
69 RD1, RD2, RD3 protective tube 3
70 KS mains switches 1
71 AQ, AT power supply open .. and stop button 2
72 CJ A.C. contactors 1
The 73 SJ time relays 1
74 Dms driving power rectifier diodes 4
75 Rms start current-limiting resistance 1
76 Cms driving power filter capacitors 1
77 Kcc control cabinet mains switches 1
78 Dc stabilized voltage power supply rectifier diodes 4
79 Cc1, Cc2 stabilized voltage power supply filter capacitor 2
80 U43 three terminal regulators 7,812 1
81 DC1....DC5 distribute diode 5
Table 2
1. four--16 decoder CD4514
2. tetrad forward-backward counter CD4516
3. triple gate CD4503
4.JK trigger CD4027
5.RS trigger CD4043
6.BCD--seven-segment decoder CD4511
7.BCD forward-backward counter CD40192
8. monostable flipflop CD4538
9. inverter CD40106
10. three inputs and door CD4073
11. two inputs and door CD4081
12. two input nand gate CD4093
13. voltage comparator amplifier μ A 741
Claims (10)
1, a kind of linear electric motors and electric control system thereof that is used for magnetic field scanning physiotherapy machine, it is characterized in that: linear electric motors are by magnetic pole magnetizing coil 3, Nd-Fe-B magnet steel 4, magnetic pole of the stator iron core 8, yoke 11, magnetic pole bearing 14 constitutes, electric control system is by position display decoding circuit 15, continuous impulse generator 16, governor circuit 17, timing and display circuit 18, velocity display circuit 19, acousto-optic is informed circuit 20, alignment circuit 21, timing circuit 22, section is selected circuit 23, scan mode is selected circuit 24, function circuit 25, pulse distribution and amplifying circuit 26 constitute, pulse distribution and amplifying circuit 26 are placed in the main circuit case 6, other control circuits are placed in the control cabinet 5, and with linking lead 7 control circuit is connected with the main circuit case, the high-power signal that the main circuit case is exported is sent into the motor coil system 27 that is made up of magnetic pole magnetizing coil 3.
2, linear electric motors according to claim 1 and electric control system thereof is characterized in that: the magnetic pole of the stator of linear electric motors unshakable in one's determination 8 can vertically be placed the vertical magnetic field of generation with the electromagnet that magnetic pole magnetizing coil 3 is formed, and also can laterally place the generation transverse magnetic field.
3, linear electric motors according to claim 2 and electric control system thereof, it is characterized in that: the linear electric motors that electromagnet is laterally placed are made of pole core 8, magnetizing coil 3, the Nd-Fe-B magnet steel 4 that is placed on the pole core both sides, pole core bearing 14, the support base plate 12 that magnet steel 4 is housed is supported by roller 9, moves along guide rail 10.
4, linear electric motors according to claim 2 and electric control system thereof, it is characterized in that: the vertical linear electric motors of placing of electromagnet are made of pole core 8, magnetizing coil 3, yoke 11, the Nd-Fe-B magnet steel 4 that is placed on the pole core top, the support base plate 12 that magnet steel 4 is housed is supported by roller 9, moves along guide rail 10.
5, linear electric motors according to claim 1 and electric control system thereof is characterized in that: electric control system can be the Digital Logical Circuits system, also microcomputer system.
6, linear electric motors according to claim 5 and electric control system thereof is characterized in that: the Digital Logical Circuits system selects circuit 32, pulse distributor 33, master switch system 34, central control unit 35, velocity-measuring system 36, timer 37, FM circuit 38, continuous impulse generator 39, working mode selection circuit 40, clock source 41, drive circuit power supply 42 to form by motor coil system 27, indicator lamp system 28, pulse distribution-indicator lamp system decoder 29, control circuit power supply 30, power amplifier 31, section.
7, linear electric motors according to claim 6 and electric control system thereof, it is characterized in that: the logical device in the Digital Logical Circuits system can be used CMOS4000/4500 series IC chip, also can use the TTL74/54 family chip, also can use programmable matrix logic GAL, PAL chip to realize.
8, linear electric motors according to claim 7 and electric control system thereof is characterized in that: the circuit that uses CMOS4000/4500 series IC chip formation is by tetrad forward-backward counter CD4516 V
6, 16 select a decoder CD4514 V
4Produce shift pulse, JK flip-flop CD4027 V
5, triple gate CD4503 V
1V
3The control direction of displacement, timing and tachometer circuit are made of BCD counter CD40192, BCD-seven-segment decoder CD4511, seven-segment display, Schmidt exports inverter CD40106 and constitutes the RC oscillator, produce continuous impulse, rest-set flip-flop CD4043, two inputs are exported NAND gate CD4093, monostable flipflop CD4538 with door CD4081, three inputs with door CD4073, two input Schmidts and are constituted the main control circuit that makes.
9, linear electric motors according to claim 5 and electric control system thereof, it is characterized in that: the hardware system that microcomputer system is made of central processing unit CPU 43, driving amplifying circuit 44, internal storage RAM/ROM45, input/output interface circuit I/O46, operation control box 47, pulse generator 48, the software systems that the read only memory ROM district storage system monitoring program in internal storage RAM/ROM45 constitutes are formed.
10, linear electric motors according to claim 9 and electric control system thereof is characterized in that: in the microcomputer system in the hardware system central processing unit CPU 43, internal storage RAM/ROM45, input/output interface circuit I/O46 can use Intel8000 series microsystem, Z80 series microcomputer chip, MCS series monolithic, PIC16C5X series monolithic to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100666A CN1105787A (en) | 1994-01-22 | 1994-01-22 | Linear motor and its electrical control system for magnetic field scanning physiotherapy machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94100666A CN1105787A (en) | 1994-01-22 | 1994-01-22 | Linear motor and its electrical control system for magnetic field scanning physiotherapy machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1105787A true CN1105787A (en) | 1995-07-26 |
Family
ID=5029773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94100666A Pending CN1105787A (en) | 1994-01-22 | 1994-01-22 | Linear motor and its electrical control system for magnetic field scanning physiotherapy machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1105787A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955111A (en) * | 2012-11-26 | 2013-03-06 | 广州广电计量检测股份有限公司 | Inverse voltage polarity conversion device for automobile electronic product |
| CN112996558A (en) * | 2018-09-27 | 2021-06-18 | 约纳·佩莱德 | Method and apparatus for multi-channel simultaneous high power magnetic coil driver |
-
1994
- 1994-01-22 CN CN94100666A patent/CN1105787A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102955111A (en) * | 2012-11-26 | 2013-03-06 | 广州广电计量检测股份有限公司 | Inverse voltage polarity conversion device for automobile electronic product |
| CN102955111B (en) * | 2012-11-26 | 2015-05-27 | 广州广电计量检测股份有限公司 | Inverse voltage polarity conversion device for automobile electronic product |
| CN112996558A (en) * | 2018-09-27 | 2021-06-18 | 约纳·佩莱德 | Method and apparatus for multi-channel simultaneous high power magnetic coil driver |
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