CN103791784A - Testing missile lifting device - Google Patents
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- CN103791784A CN103791784A CN201410059885.2A CN201410059885A CN103791784A CN 103791784 A CN103791784 A CN 103791784A CN 201410059885 A CN201410059885 A CN 201410059885A CN 103791784 A CN103791784 A CN 103791784A
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Abstract
The invention relates to a testing missile lifting device which comprises a supporting frame, an integrated brake gear motor, a transmission mechanism and a controller. The testing missile lifting device has the advantage of being capable of automatically performing limiting so as to prevent a collision accident from occurring. In the time of operation, the device can be shut down at any time and the emergency accident can be dealt with. As the ascending function and the descending function are required by missile-target encountering, two three-phase alternating-current solid-state relays are adopted, and an electricity supplying sequence of the motor is changed to change the rotation direction of the motor so as to achieve ascending and descending of the missile-target encountering. A decoder is adopted for controlling block selection of the two solid-phase relays. A traditional control method is abandoned, the weak is used for controlling the strong and in addition, the testing missile lifting device is in interface communication with a microcomputer.
Description
Technical field
The invention belongs to and play order intersection experimental technique field, relate to a kind of test and bounce up falling unit.
Background technology
Playing order intersection test is to produce Doppler signal by the relative motion between imitating shell order to obtain the experimental data needing.Test method in the past has two kinds: one be machine driving be combined with manpower control realize test play elevating movement; One is to adopt " hoist engine " as lowering or hoisting gear.There is inefficiency in first method, Artificial Control location is inaccurate, cannot guarantee the shortcoming of experimental data precision; Second method exists that volume is large, excess drive force, uppity shortcoming.While adopting in addition above-mentioned two kinds of methods to test, due to without the fixing body that carries, all have the shortcoming that climate windage is large, more than 3 grades wind-force can not be carried out test or cause the inaccurate problem of test data.The simultaneously control method of conventional motors, adopts ac contactor control circuit, with heavy-current control forceful electric power, and can not realize and the interface communication of microcomputer.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of test small and exquisite, nimble, that be easy to control and bounces up falling unit.
For solving the problems of the technologies described above taked technical scheme be: a kind of test bounces up falling unit, comprises support, Integral braking reducing motor, transmission mechanism and controller;
Described transmission mechanism comprises driving wheel, the lower sheave that is arranged at described support bottom, the top sheave that is arranged at described cantilever tip that are arranged on described Integral braking reducing motor output shaft, be arranged on transmission rope on described driving wheel, lower sheave and top sheave, be arranged at extension diving board on the transmission rope of described lower sheave and top sheave front side, be arranged at respectively a pair of upright guide rail of two pillar front sides of described support;
Described extension diving board is slidably matched by 4 directive wheels and the described a pair of upright guide rail of its both sides;
Described Integral braking reducing motor is arranged on the bottom of described support;
Described controller comprises microcomputer, capture card, interface circuit, stroke limit and positioning circuit and driving and controlling circuits; The input of described interface circuit connects respectively the corresponding control output end of described microcomputer; The output of described interface circuit and stroke limit and positioning circuit connects respectively the respective input of described driving and controlling circuits; The corresponding output end of stroke limit and positioning circuit described in the input termination of described capture card; The output of capture card described in the input termination of described microcomputer; The output of described driving and controlling circuits connects respectively the respective input of described Integral braking reducing motor.
The left side of described driving wheel is 5 ~ 7 ° with respect to the left side of the described lower sheave angle that is tilted to the left.
Described interface circuit comprises decoding integration block U1, phase inverter U2-U3, resistance R 1-R4, LED 1 and emergency stop switch SW3;
The first logic input terminal 1 pin of described decoding integration block U1 meets the decline control output end DW of described microcomputer; Described resistance R 1 is connected between the first logic input terminal 1 pin and ground of described decoding integration block U1;
The second logic input terminal 2 pin of described decoding integration block U1 meet the rising control output end UP of described microcomputer; Described resistance R 2 is connected between the second logic input terminal 2 pin and ground of described decoding integration block U1;
The 3rd connect+5V of the logic input terminal 3 pin dc source of described decoding integration block U1;
Described resistance R 4 is connected between the 3rd logic input terminal 3 pin and the 3rd Enable Pin 6 pin of described decoding integration block U1;
Described resistance R 3 connect with LED 1 after between be connected on+5V dc source and the 3rd Enable Pin 6 pin of described decoding integration block U1; Described emergency stop switch SW3 is connected between the 3rd Enable Pin 6 pin and ground of described decoding integration block U1;
The first Enable Pin 4 pin of described decoding integration block U1 and the second Enable Pin 5 pin ground connection respectively;
Connect+5V of the power end 16 pin dc source of described decoding integration block U1; The 8 pin ground connection of described decoding integration block U1;
Described in the 6th output 10 pin of described decoding integration block U1, connect input 1 pin of phase inverter U2; The rising drive output O1 that output 2 pin of described phase inverter U2 are described interface circuit;
The 7th output 9 pin of described decoding integration block U1 connect input 3 pin of phase inverter U3; The decline drive output O2 that output 4 pin of described phase inverter U3 are described interface circuit.
Described stroke limit and positioning circuit comprise upper limit travel switch SW1, lower limit travel switch SW2, upper limit travel switch contact, lower limit travel switch contact, photoelectrical coupler U4-U5, phase inverter U6-U9 or door integrated package U10 and resistance R 5-R8;
Described upper limit travel switch SW1 is arranged on the left pillar bottom of described support; Described lower limit travel switch SW2 is arranged on the right pillar bottom of described support; Described upper limit travel switch contact is arranged on the transmission rope of described lower sheave and top sheave rear side; Described lower limit travel switch contact is arranged on the bottom surface of described extension diving board;
Described driving and controlling circuits comprises 3 phase AC solid relay SSR1-SRR2, rp-drive U11, relay J 1-J4, sustained diode 1-D4, resistance R 9, LED 2, piezo-resistance RV1-RV3, fuse FU1-FU3 and Three-phase knife switch K;
The first output 16 pin of described rp-drive U11 connect the negative pole of described relay J 1 coil; Connect+5V of the positive pole dc source of described relay J 1 coil; Described sustained diode 1 is connected in reverse parallel in the two ends of described relay J 1 coil;
The second output 15 pin of described rp-drive U11 connect the negative pole of described relay J 2 coils; Connect+5V of the positive pole dc source of described relay J 2 coils; Described sustained diode 2 is connected in reverse parallel in the two ends of described relay J 2 coils;
The 3rd output 14 pin of described rp-drive U11 connect the negative pole of described relay J 3 coils; Connect+5V of the positive pole dc source of described relay J 3 coils; Described sustained diode 3 is connected in reverse parallel in the two ends of described relay J 3 coils;
The 4th output 13 pin of described rp-drive U11 connect the negative pole of described relay J 4 coils; Connect+5V of the positive pole dc source of described relay J 4 coils; Described sustained diode 4 is connected in reverse parallel in the two ends of described relay J 4 coils;
Connect+5V of the power end 9 pin dc source of described rp-drive U11; The 8 pin ground connection of described rp-drive U11;
Described resistance R 9 connect with LED 2 after between be connected on+5V dc source and ground;
DC control input anode 1 pin of described 3 phase AC solid relay SSR1 is successively through the normally opened contact J1-1 of described relay J 1, the normally-closed contact J2-2 of relay J 2, connect+5V of the normally-closed contact J3-2 dc source of relay J 3; The DC control input cathode 2 pin ground connection of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR1 connects the A phase power end of 380V AC power successively through the first main contact K-1 of described fuse FU1, Three-phase knife switch K; The three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR1 connects the C phase power end of 380V AC power successively through the 3rd main contact K-3 of described fuse FU3, Three-phase knife switch K; The three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR1 connects the B phase power end of 380V AC power successively through the second main contact K-2 of described fuse FU2, Three-phase knife switch K;
DC control input anode 1 pin of described 3 phase AC solid relay SSR2 is successively through the normally opened contact J2-1 of described relay J 2, the normally-closed contact J1-2 of relay J 1, connect+5V of the normally-closed contact J4-2 dc source of relay J 4; The DC control input cathode 2 pin ground connection of described 3 phase AC solid relay SSR2; The three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR1;
The three-phase alternating current leading-out terminal A2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal A2 of 3 phase AC solid relay SSR2 connect respectively the B phase input of described Integral braking reducing motor; The three-phase alternating current leading-out terminal B2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal B2 of 3 phase AC solid relay SSR2 connect respectively the A phase input of described Integral braking reducing motor; The three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal C2 of 3 phase AC solid relay SSR2 connect respectively the C phase input of described Integral braking reducing motor;
Described piezo-resistance RV1 is connected between the three-phase alternating current leading-out terminal A2 and three-phase alternating current leading-out terminal B2 of described 3 phase AC solid relay SSR1; Described piezo-resistance RV2 is connected between the three-phase alternating current leading-out terminal B2 and three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1; Described piezo-resistance RV3 is connected between the three-phase alternating current leading-out terminal A2 and three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1.
The model of described decoding integration block U1 is 74HC138; The model of described phase inverter U2-U3 is 74HC14; The model of described photoelectrical coupler U4-U5 is TLP521-1; The model of described phase inverter U6-U9 is 74LS14; Model described or door integrated package U10 is 74LS32; The model of described rp-drive U11 is MC1413; The model of described 3 phase AC solid relay SSR1-SRR2 is SSR-3-380D10; The model of described upper limit travel switch SW1 and lower limit travel switch SW2 is JLXK1-111; The model of described relay J 1-J4 is DS2Y-S-DC5V; The model of described piezo-resistance RV1-RV3 is MY31-5KA720V; The model of described fuse FU1-FU3 is RT28-32; The model of described Three-phase knife switch K is HK2-63/3; The model of described emergency stop switch SW3 is PBS-110 KAX-3.
The model of described microcomputer is Lenovo Qitian M4330; The model of described capture card is PCI-MIO-16XE-10; The model of described Integral braking reducing motor is S32DT71D4.
The beneficial effect that adopts technique scheme to produce is:
(1) the present invention can drag test bullet and moves up and down, and has automatic spacing circuit, is unlikely generation " collision " accident;
(2) the present invention has reliably " power down braking " function, breaks test bullet can prevent unexpected power down time;
(3) the present invention, in the time of operation, can shut down at any time, can cope with contingencies;
(4) require have rising and decline function owing to playing order intersection, the present invention adopts two 3 phase AC solid relays, changes the rotation direction of motor by changing the power supply phase sequence of motor, thereby realizes the rise and fall that play order intersection;
(5) the present invention, in the realization of control logic, has adopted 74HC138 decoder, can realize two solid-state relays to select piece control;
(6) 74HC138 of the present invention, under any input condition, only has one to be output as effective logic, and this has just been avoided the possibility of two 3 phase AC solid relay conductings simultaneously, and by the control to 74HC138 Enable Pin, has realized sudden-stop function;
(7) its logic output of 74HC138 of the present invention is controlled 3 phase AC solid relay again through relay, and the reliability design of this redundancy makes the anti-interference of control logic have assurance very reliably;
(8) the present invention has abandoned traditional control method, has realized with weak control by force, and has realized and the interface communication of microcomputer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is controller principle block diagram of the present invention.
Fig. 3 is interface circuit schematic diagram of the present invention.
Fig. 4 is stroke limit of the present invention and positioning circuit schematic diagram.
Fig. 5 is driving and controlling circuits schematic diagram of the present invention.
In Fig. 1,1-Integral braking reducing motor; 2-driving wheel; 3-lower sheave; 4-upper limit travel switch SW1; 5-transmission rope; 6-upper limit travel switch contact; 7-extension diving board; 8-upright guide rail; 9-support; 10-top sheave; 11-directive wheel; 12-lower limit travel switch contact; 13-lower limit travel switch SW2.
In Fig. 3, U-microcomputer.
In Fig. 5, DJ-Integral braking reducing motor.
The specific embodiment
From the embodiment shown in Fig. 1-5, the present embodiment comprises support 9, Integral braking reducing motor 1, transmission mechanism and controller;
Described transmission mechanism comprises driving wheel 2, the lower sheave 3 that is arranged at described support 9 bottoms, the top sheave 10 that is arranged at described support 9 tops that are arranged on described Integral braking reducing motor 1 output shaft, be arranged on transmission rope 5 on described driving wheel 2, lower sheave 3 and top sheave 10, be arranged at extension diving board 7 on the transmission rope 5 of described lower sheave 3 and top sheave 10 front sides, be arranged at respectively a pair of upright guide rail 8 of two pillar front sides of described support 9;
Described extension diving board 7 is slidably matched with described a pair of upright guide rail 8 by 4 directive wheels 11 of its both sides;
Described Integral braking reducing motor 1 is arranged on the bottom of described support 9;
Described controller comprises microcomputer, capture card, interface circuit, stroke limit and positioning circuit and driving and controlling circuits; The input of described interface circuit connects respectively the corresponding control output end of described microcomputer; The output of described interface circuit and stroke limit and positioning circuit connects respectively the respective input of described driving and controlling circuits; The corresponding output end of stroke limit and positioning circuit described in the input termination of described capture card; The output of capture card described in the input termination of described microcomputer; The output of described driving and controlling circuits connects respectively the respective input of described Integral braking reducing motor 1.
The left side of described driving wheel 2 is 5 ~ 7 ° with respect to the left side of described lower sheave 3 angle that is tilted to the left.
Described interface circuit comprises decoding integration block U1, phase inverter U2-U3, resistance R 1-R4, LED 1 and emergency stop switch SW3;
Described interface circuit comprises decoding integration block U1, phase inverter U2-U3, resistance R 1-R4, LED 1 and emergency stop switch SW3;
The control output end of described microcomputer comprises rising control output end UP and decline control output end DW;
The input of described interface circuit comprises the first logic input terminal and the second logic input terminal; The first logic input terminal of described interface circuit is the first logic input terminal 1 pin of described decoding integration block U1; The second logic input terminal of described interface circuit is the second logic input terminal 2 pin of described decoding integration block U1;
The first logic input terminal 1 pin of described decoding integration block U1 meets the decline control output end DW of described microcomputer; Described resistance R 1 is connected between the first logic input terminal 1 pin and ground of described decoding integration block U1;
The second logic input terminal 2 pin of described decoding integration block U1 meet the rising control output end UP of described microcomputer; Described resistance R 2 is connected between the second logic input terminal 2 pin and ground of described decoding integration block U1;
The 3rd connect+5V of the logic input terminal 3 pin dc source of described decoding integration block U1;
Described resistance R 4 is connected between the 3rd logic input terminal 3 pin and the 3rd Enable Pin 6 pin of described decoding integration block U1;
Described resistance R 3 connect with LED 1 after between be connected on+5V dc source and the 3rd Enable Pin 6 pin of described decoding integration block U1; Described emergency stop switch SW3 is connected between the 3rd Enable Pin 6 pin and ground of described decoding integration block U1;
The first Enable Pin 4 pin of described decoding integration block U1 and the second Enable Pin 5 pin ground connection respectively;
Connect+5V of the power end 16 pin dc source of described decoding integration block U1; The 8 pin ground connection of described decoding integration block U1;
Described in the 6th output 10 pin of described decoding integration block U1, connect input 1 pin of phase inverter U2;
The 7th output 9 pin of described decoding integration block U1 connect input 3 pin of phase inverter U3;
The output of described interface circuit comprises rising drive output O1 and decline drive output O2; The rising drive output O1 that output 2 pin of described phase inverter U2 are described interface circuit; The decline drive output O2 that output 4 pin of described phase inverter U3 are described interface circuit.
Described stroke limit and positioning circuit comprise upper limit travel switch SW1, lower limit travel switch SW2, upper limit travel switch contact 6, lower limit travel switch contact 12, photoelectrical coupler U4-U5, phase inverter U6-U9 or door integrated package U10 and resistance R 5-R8;
Described upper limit travel switch SW1 is arranged on the left pillar bottom of described support 9; Described lower limit travel switch SW2 is arranged on the right pillar bottom of described support 9; Described upper limit travel switch contact 6 is arranged on the transmission rope 5 of described lower sheave 3 and top sheave 10 rear sides; Described lower limit travel switch contact 12 is arranged on the bottom surface of described extension diving board 7;
The output of described stroke limit and positioning circuit comprises upper limit control output end O3, lower limit control output end O4 and limit signal output O5; Emitter stage 3 pin of described photoelectrical coupler U4 are the upper limit control output end O3 of described stroke limit and positioning circuit; Emitter stage 3 pin of described photoelectrical coupler U5 are the lower limit control output end O4 of described stroke limit and positioning circuit; Output 3 pin described or door integrated package U10 are the limit signal output O5 of described stroke limit and positioning circuit.
Described driving and controlling circuits comprises 3 phase AC solid relay SSR1-SRR2, rp-drive U11, relay J 1-J4, sustained diode 1-D4, resistance R 9, LED 2, piezo-resistance RV1-RV3, fuse FU1-FU3 and Three-phase knife switch K;
The input of described driving and controlling circuits comprises first input end to the four-input terminal; First input end 1 pin to the four-input terminal 4 pin of described driver U11 are respectively first input end to the four-input terminal of described driving and controlling circuits; First input end 1 pin of described driver U11 meets the rising drive output O1 of described interface circuit; The second input 2 pin of described driver U11 meet the decline drive output O2 of described interface circuit; The 3rd input 3 pin of described driver U11 meet the upper limit control output end O3 of described stroke limit and positioning circuit; Four-input terminal 4 pin of described driver U11 meet the lower limit control output end O4 of described stroke limit and positioning circuit;
The first output 16 pin of described rp-drive U11 connect the negative pole of described relay J 1 coil; Connect+5V of the positive pole dc source of described relay J 1 coil; Described sustained diode 1 is connected in reverse parallel in the two ends of described relay J 1 coil;
The second output 15 pin of described rp-drive U11 connect the negative pole of described relay J 2 coils; Connect+5V of the positive pole dc source of described relay J 2 coils; Described sustained diode 2 is connected in reverse parallel in the two ends of described relay J 2 coils;
The 3rd output 14 pin of described rp-drive U11 connect the negative pole of described relay J 3 coils; Connect+5V of the positive pole dc source of described relay J 3 coils; Described sustained diode 3 is connected in reverse parallel in the two ends of described relay J 3 coils;
The 4th output 13 pin of described rp-drive U11 connect the negative pole of described relay J 4 coils; Connect+5V of the positive pole dc source of described relay J 4 coils; Described sustained diode 4 is connected in reverse parallel in the two ends of described relay J 4 coils;
Connect+5V of the power end 9 pin dc source of described rp-drive U11; The 8 pin ground connection of described rp-drive U11;
Described resistance R 9 connect with LED 2 after between be connected on+5V dc source and ground;
DC control input anode 1 pin of described 3 phase AC solid relay SSR1 is successively through the normally opened contact J1-1 of described relay J 1, the normally-closed contact J2-2 of relay J 2, connect+5V of the normally-closed contact J3-2 dc source of relay J 3; The DC control input cathode 2 pin ground connection of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR1 connects the A phase power end of 380V AC power successively through the first main contact K-1 of described fuse FU1, Three-phase knife switch K; The three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR1 connects the C phase power end of 380V AC power successively through the 3rd main contact K-3 of described fuse FU3, Three-phase knife switch K; The three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR1 connects the B phase power end of 380V AC power successively through the second main contact K-2 of described fuse FU2, Three-phase knife switch K;
DC control input anode 1 pin of described 3 phase AC solid relay SSR2 is successively through the normally opened contact J2-1 of described relay J 2, the normally-closed contact J1-2 of relay J 1, connect+5V of the normally-closed contact J4-2 dc source of relay J 4; The DC control input cathode ground connection of described 3 phase AC solid relay SSR2; The three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR1;
The output of described driving and controlling circuits comprises the first output to the three outputs; The three-phase alternating current leading-out terminal B2 of the three-phase alternating current leading-out terminal B2 of described 3 phase AC solid relay SSR1 and 3 phase AC solid relay SSR2 connects respectively OB point, the first output that OB point is driving and controlling circuits; The three-phase alternating current leading-out terminal A2 of the three-phase alternating current leading-out terminal A2 of described 3 phase AC solid relay SSR1 and 3 phase AC solid relay SSR2 connects respectively OA point, the second output that OA point is described driving and controlling circuits; The three-phase alternating current leading-out terminal C2 of the three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1 and 3 phase AC solid relay SSR2 connects respectively OC point, the 3rd output that OC point is driving and controlling circuits; The input of described Integral braking reducing motor 1 comprises A phase input, B phase input and C phase input;
The three-phase alternating current leading-out terminal A2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal A2 of 3 phase AC solid relay SSR2 connect respectively the B phase input of described Integral braking reducing motor 1; The three-phase alternating current leading-out terminal B2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal B2 of 3 phase AC solid relay SSR2 connect respectively the A phase input of described Integral braking reducing motor 1; The three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal C2 of 3 phase AC solid relay SSR2 connect respectively the C phase input of described Integral braking reducing motor 1;
Described piezo-resistance RV1 is connected between the three-phase alternating current leading-out terminal A2 and three-phase alternating current leading-out terminal B2 of described 3 phase AC solid relay SSR1; Described piezo-resistance RV2 is connected between the three-phase alternating current leading-out terminal B2 and three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1; Described piezo-resistance RV3 is connected between the three-phase alternating current leading-out terminal A2 and three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1.
The model of described decoding integration block U1 is 74HC138; The model of described phase inverter U2-U3 is 74HC14; The model of described photoelectrical coupler U4-U5 is TLP521-1; The model of described phase inverter U6-U9 is 74LS14; Model described or door integrated package U10 is 74LS32; The model of described rp-drive U11 is MC1413; The model of described 3 phase AC solid relay SSR1-SRR2 is SSR-3-380D10; The model of described upper limit travel switch SW1 and lower limit travel switch SW2 is JLXK1-111; The model of described relay J 1-J4 is DS2Y-S-DC5V; The model of described piezo-resistance RV1-RV3 is MY31-5KA720V; The model of described fuse FU1-FU3 is RT28-32; The model of described Three-phase knife switch K is HK2-63/3; The model of described emergency stop switch SW3 is PBS-110 KAX-3.
The model of described microcomputer is Lenovo Qitian M4330; The model of described capture card is PCI-MIO-16XE-10; The model of described Integral braking reducing motor 1 is S32DT71D4.
Integral braking reducing motor can not only provide forward and reverse slow-speed of revolution power for lowering or hoisting gear, and in the time of the unexpected power down of motor, and brake can locking electric machine main shaft, prevents " falling bullet " accident.
Driving wheel adopts V-arrangement wheel.
The problem that Three-wheel driven mode exists is that between intersection transmission rope, phase mutual friction causes transmission rope heavy wear, the transmission rope life-span is reduced, the method of head it off is the left side that makes driving wheel with respect to the left side of the lower sheave angle that is tilted to the left, and angular dimension is 5 ~ 7 °.The left side of driving wheel is tilted to the left 5 ~ 7 ° and can meets the needs that transmission rope (thick 8～12mm restricts) does not does not wear and tear with respect to the left side of lower sheave, must be pointed out, the angle conference of tilting makes driving wheel V-arrangement wheel side strengthen the wearing and tearing of rope.
Limit switch select main consideration free travel, that is to say that the free travel of lead limit switch should be greater than inertia overshoot stroke.Consider from safety, solid angle, upper limit travel switch is chosen by 50mm free travel, and lower limit travel switch is chosen by 70mm free travel.
The present invention can realize the contactless automatic control that plays order intersection Integral braking reducing motor, has therefore adopted 3 phase AC solid relay, and 3 phase AC solid relay is to be made up of the bidirectional triode thyristor of Transistor-Transistor Logic level control.Require have rising and decline function owing to playing order intersection, therefore adopted two 3 phase AC solid relays, by changing the power supply phase sequence of Integral braking reducing motor, change the rotation direction of Integral braking reducing motor, thereby realize the rise and fall that play order intersection.
In the realization of control logic, adopt 7,4HC,138 tri-～eight decoders, to realize two solid-state relays are selected to piece control.The output of 74HC138 under any input condition only has one for effective logic, and this has just been avoided the possibility of two 3 phase AC solid relay conductings simultaneously, and by the control to 74HC138 Enable Pin, has realized sudden-stop function.The output logic of 74HC138 is controlled 3 phase AC solid relay again through relay again.The reliability design of this redundancy, makes the anti-interference of control logic have assurance very reliably.
For convenience of the positioning requirements in test, the present invention has had the limit function of Upper-lower Limit position, and provides corresponding spacing logical signal.The realization of limit function is the voltage signal by+40V, through the normally opened contact of limitation travel switch, is input in photoelectrical coupler.The keying signal of travel switch is by the conversion of optocoupler, and the voltage signal of+40V is converted to Transistor-Transistor Logic level, and the purposes of this level has two: first, in the time that the intersection of bullet order reaches the limit of position, play limit function, this function is the output by optocoupler, drives limit relay to realize through amplifying; The second, provide spacing logical signal, by optocoupler process or the door output of upper and lower spacing circuit, gather and computing for microcomputer.
74HC138 chip aims at decoder and high speed data transmission system design, and it comprises three and allows input, three logic input terminals and eight decoding outputs.Wherein, A, B, C is the selecting side of three logic inputs; E1, E2, E3 are three and allow input; Y0-Y7 is eight decoding outputs.
Lead limit switch and controller distance reaches 100m, the high-level control signal of for the interference of effectively drawing up, adopted+40V.When test bullet declines, when " lower limit travel switch " SW2 is depressed in the collision of lower limit travel switch contact, the power supply of+40V is switched on, the 3 pin output high level of U5, this high level is realized spacing control by control relay on the one hand, connect one or an output high level by two phase inverters on the other hand, the rising edge of this high level has been pointed out the spacing moment.Upper limit control principle therewith roughly the same.
The counter electromotive force that Integral braking reducing motor produces when preventing from cutting off circuit burns out solid-state relay, has adopted the piezo-resistance of 720V as overvoltage protection measure, and has adopted the fastp-acting fuse of 10A as short-circuit protection.
Traditional Electric Machine Control, adopts ac contactor control circuit, with heavy-current control forceful electric power, and can not realize and the interface communication of microcomputer.The present invention has abandoned traditional control method, has realized with weak control by force, and has realized and the interface communication of microcomputer.
In driving and controlling circuits, select two 3 phase AC solid relays (bidirectional triode thyristor), to these two controllable silicons, adopt 74HC138 to select piece control.74HC138 is three～eight decoders, and its traditional usage is to carry out decoding addressing.
Specific works process of the present invention is as follows:
Test bullet is hung on diving board, the three phase mains of Integral braking reducing motor is connected, Three-phase knife switch closes, then connect after the power supply and coherent signal passage of controller, start test, a high level signal of rising control output end UP output of microcomputer is to decoding integration block U1(74HC138) the second logic input terminal, signal is through the Y5 of decoding integration block U1 output, by phase inverter U2(74HC14) enter rp-drive U11(MC1413 after integer) 1 pin, rp-drive U11(MC1413) 16 pin output signal drive relay J 1, make the normally opened contact J1-1 adhesive of relay J 1, the now normally opened contact J1-1 of relay J 1, the normally-closed contact J2-2 of relay J 2, the normally-closed contact J3-2 of relay J 3 forms closed-loop path, make have+5V of the DC control input high level input of solid-state relay SSR1, drive solid-state relay SSR1 adhesive, now Integral braking reducing motor starts forward (hanging diving board moves upward with test bullet), in the time of upper limit travel switch contact collision upper limit travel switch SW1, upper limit travel switch SW1 closure, limit signal enters rp-drive U11(MC1413 through U4) 3 pin, by rp-drive U11(MC1413) the signal driver relay J 3 of 14 pin outputs, make the normally opened contact J3-1 adhesive of J3, force the normally opened contact J1-1 by relay J 1, the normally-closed contact J2-2 of relay J 2, the loop that the normally-closed contact J3-2 of relay J 3 forms disconnects, Integral braking reducing motor quits work, another road output signal of U4 is through U6 simultaneously, U7, U10 laggard enter microcomputer, now test program enters the timing of 2s, the signal of the rising control output end UP output of microcomputer is set low to level simultaneously, relay J 1 normally opened contact J1-1 disconnects, timing 2s, after time arrives, the decline control output end DW of microcomputer holds to decoding integration block U1(74HC138) high level signal of the first logic input terminal, through decoding integration block U1(74HC138) 9 pin outputs after through U3 shaping, then enter rp-drive U11(MC1413) 2 pin, by rp-drive U11(MC1413) 15 pin output signal drive relay J 2, make J2 normally opened contact J2-1 adhesive, the now normally opened contact J2-1 of relay J 2, the normally-closed contact J1-2 of relay J 1, the normally-closed contact J4-2 of relay J 4 forms closed-loop path, make have+5V of the DC control input high level input of solid-state relay SSR2, drive solid-state relay SSR2 adhesive, now Integral braking reducing motor starts antiport (hanging diving board moves downward with test bullet), instantly when limitation travel switch contact collision lower limit travel switch SW2, lower limit travel switch SW2 closure, limit signal enters rp-drive U11(MC1413 through U5) 4 pin, by rp-drive U11(MC1413) the signal driver relay J 4 of 13 pin outputs, make the normally opened contact J4-1 adhesive of J4, force the normally opened contact J2-1 by relay J 2, the normally-closed contact J1-2 of relay J 1, the loop that the normally-closed contact J4-2 of relay J 4 forms disconnects, Integral braking reducing motor quits work.
The effect of emergency stop switch SW3 in the present invention is: when run into emergency generation in test process time (the extension diving board of testing bullet as hung is tangled), press emergency stop switch SW3, now 6 pin (E3) of decoding integration block U1 are low level, it is forbidden energy, now decoding integration block U1 output is high level, make the equal adhesive of normally opened contact J2-1 of normally opened contact J1-1 and the J2 of relay J 1, the DC control input of solid-state relay SSR1 and solid-state relay SSR2 is all without the input of+5V high level, so Integral braking reducing motor quits work.
Claims (7)
1. test bounces up a falling unit, it is characterized in that: comprise support (9), Integral braking reducing motor (1), transmission mechanism and controller;
Described transmission mechanism comprises the driving wheel (2) being arranged on described Integral braking reducing motor (1) output shaft, be arranged at the lower sheave (3) of described support (9) bottom, be arranged at the top sheave (10) on described support (9) top, be arranged on described driving wheel (2), transmission rope (5) on lower sheave (3) and top sheave (10), be arranged at the extension diving board (7) on the transmission rope (5) of described lower sheave (3) and top sheave (10) front side, be arranged at respectively a pair of upright guide rail (8) of two pillar front sides of described support (9),
Described extension diving board (7) is slidably matched with described a pair of upright guide rail (8) by 4 directive wheels (11) of its both sides;
Described Integral braking reducing motor (1) is arranged on the bottom of described support (9);
Described controller comprises microcomputer, capture card, interface circuit, stroke limit and positioning circuit and driving and controlling circuits; The input of described interface circuit connects respectively the corresponding control output end of described microcomputer; The output of described interface circuit and stroke limit and positioning circuit connects respectively the respective input of described driving and controlling circuits; The corresponding output end of stroke limit and positioning circuit described in the input termination of described capture card; The output of capture card described in the input termination of described microcomputer; The output of described driving and controlling circuits connects respectively the respective input of described Integral braking reducing motor (1).
2. a kind of test according to claim 1 bounces up falling unit, it is characterized in that: the left side of described driving wheel (2) is 5 ~ 7 ° with respect to the left side of described lower sheave (3) angle that is tilted to the left.
3. a kind of test according to claim 2 bounces up falling unit, it is characterized in that: described interface circuit comprises decoding integration block U1, phase inverter U2-U3, resistance R 1-R4, LED 1 and emergency stop switch SW3;
The first logic input terminal 1 pin of described decoding integration block U1 meets the decline control output end DW of described microcomputer; Described resistance R 1 is connected between the first logic input terminal 1 pin and ground of described decoding integration block U1;
The second logic input terminal 2 pin of described decoding integration block U1 meet the rising control output end UP of described microcomputer; Described resistance R 2 is connected between the second logic input terminal 2 pin and ground of described decoding integration block U1;
The 3rd connect+5V of the logic input terminal 3 pin dc source of described decoding integration block U1;
Described resistance R 4 is connected between the 3rd logic input terminal 3 pin and the 3rd Enable Pin 6 pin of described decoding integration block U1;
Described resistance R 3 connect with LED 1 after between be connected on+5V dc source and the 3rd Enable Pin 6 pin of described decoding integration block U1; Described emergency stop switch SW3 is connected between the 3rd Enable Pin 6 pin and ground of described decoding integration block U1;
The first Enable Pin 4 pin of described decoding integration block U1 and the second Enable Pin 5 pin ground connection respectively;
Connect+5V of the power end 16 pin dc source of described decoding integration block U1; The 8 pin ground connection of described decoding integration block U1;
Described in the 6th output 10 pin of described decoding integration block U1, connect input 1 pin of phase inverter U2; The rising drive output O1 that output 2 pin of described phase inverter U2 are described interface circuit;
The 7th output 9 pin of described decoding integration block U1 connect input 3 pin of phase inverter U3; The decline drive output O2 that output 4 pin of described phase inverter U3 are described interface circuit.
4. a kind of test according to claim 3 bounces up falling unit, it is characterized in that: described stroke limit and positioning circuit comprise upper limit travel switch SW1(4), lower limit travel switch SW2(13), upper limit travel switch contact (6), lower limit travel switch contact (12), photoelectrical coupler U4-U5, phase inverter U6-U9 or an integrated package U10 and resistance R 5-R8;
Described upper limit travel switch SW1(4) be arranged on the left pillar bottom of described support (9); Described lower limit travel switch SW2(13) be arranged on the right pillar bottom of described support (9); Described upper limit travel switch contact (6) is arranged on the transmission rope (5) of described lower sheave (3) and top sheave (10) rear side; Described lower limit travel switch contact (12) is arranged on the bottom surface of described extension diving board (7);
Positive pole 1 pin of described photoelectrical coupler U4 is successively through described resistance R 5, upper limit travel switch SW1(4) connect+40V dc source; The negative pole 2 pin ground connection of described photoelectrical coupler U4; Connect+5V of the colelctor electrode 4 pin dc source of described photoelectrical coupler U4; Emitter stage 3 pin of described photoelectrical coupler U4 connect first input end 1 pin described or door integrated package U10 through described phase inverter U6, phase inverter U7 successively; Described resistance R 7 is connected between emitter stage 3 pin and ground of described photoelectrical coupler U4;
Positive pole 1 pin of described photoelectrical coupler U5 is successively through described resistance R 6, lower limit travel switch SW2(13) connect+40V dc source; The negative pole 2 pin ground connection of described photoelectrical coupler U5; Connect+5V of the colelctor electrode 4 pin dc source of described photoelectrical coupler U5; Emitter stage 3 pin of described photoelectrical coupler U5 connect the second input 2 pin described or door integrated package U10 through described phase inverter U8, phase inverter U9 successively; Described resistance R 8 is connected between emitter stage 3 pin and ground of described photoelectrical coupler U5;
Output 3 pin described or door integrated package U10 connect the input of described capture card;
Emitter stage 3 pin of described photoelectrical coupler U4 are the upper limit control output end O3 of described stroke limit and positioning circuit; Emitter stage 3 pin of described photoelectrical coupler U5 are the lower limit control output end O4 of described stroke limit and positioning circuit; Output 3 pin described or door integrated package U10 are the limit signal output O5 of described stroke limit and positioning circuit.
5. a kind of test according to claim 4 bounces up falling unit, it is characterized in that: described driving and controlling circuits comprises 3 phase AC solid relay SSR1-SRR2, rp-drive U11, relay J 1-J4, sustained diode 1-D4, resistance R 9, LED 2, piezo-resistance RV1-RV3, fuse FU1-FU3 and Three-phase knife switch K;
First input end 1 pin of described driver U11 meets the rising drive output O1 of described interface circuit; The second input 2 pin of described driver U11 meet the decline drive output O2 of described interface circuit; The 3rd input 3 pin of described driver U11 meet the upper limit control output end O3 of described stroke limit and positioning circuit; Four-input terminal 4 pin of described driver U11 meet the lower limit control output end O4 of described stroke limit and positioning circuit;
The first output 16 pin of described rp-drive U11 connect the negative pole of described relay J 1 coil; Connect+5V of the positive pole dc source of described relay J 1 coil; Described sustained diode 1 is connected in reverse parallel in the two ends of described relay J 1 coil;
The second output 15 pin of described rp-drive U11 connect the negative pole of described relay J 2 coils; Connect+5V of the positive pole dc source of described relay J 2 coils; Described sustained diode 2 is connected in reverse parallel in the two ends of described relay J 2 coils;
The 3rd output 14 pin of described rp-drive U11 connect the negative pole of described relay J 3 coils; Connect+5V of the positive pole dc source of described relay J 3 coils; Described sustained diode 3 is connected in reverse parallel in the two ends of described relay J 3 coils;
The 4th output 13 pin of described rp-drive U11 connect the negative pole of described relay J 4 coils; Connect+5V of the positive pole dc source of described relay J 4 coils; Described sustained diode 4 is connected in reverse parallel in the two ends of described relay J 4 coils;
Connect+5V of the power end 9 pin dc source of described rp-drive U11; The 8 pin ground connection of described rp-drive U11;
Described resistance R 9 connect with LED 2 after between be connected on+5V dc source and ground;
DC control input anode 1 pin of described 3 phase AC solid relay SSR1 is successively through the normally opened contact J1-1 of described relay J 1, the normally-closed contact J2-2 of relay J 2, connect+5V of the normally-closed contact J3-2 dc source of relay J 3; The DC control input cathode 2 pin ground connection of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR1 connects the A phase power end of 380V AC power successively through the first main contact K-1 of described fuse FU1, Three-phase knife switch K; The three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR1 connects the C phase power end of 380V AC power successively through the 3rd main contact K-3 of described fuse FU3, Three-phase knife switch K; The three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR1 connects the B phase power end of 380V AC power successively through the second main contact K-2 of described fuse FU2, Three-phase knife switch K;
DC control input anode 1 pin of described 3 phase AC solid relay SSR2 is successively through the normally opened contact J2-1 of described relay J 2, the normally-closed contact J1-2 of relay J 1, connect+5V of the normally-closed contact J4-2 dc source of relay J 4; The DC control input cathode 2 pin ground connection of described 3 phase AC solid relay SSR2; The three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables B1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables A1 of described 3 phase AC solid relay SSR1; The three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR2 meets the three-phase alternating current end of incoming cables C1 of described 3 phase AC solid relay SSR1;
The three-phase alternating current leading-out terminal A2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal A2 of 3 phase AC solid relay SSR2 connect respectively the B phase input of described Integral braking reducing motor (1); The three-phase alternating current leading-out terminal B2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal B2 of 3 phase AC solid relay SSR2 connect respectively the A phase input of described Integral braking reducing motor (1); The three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1 and the three-phase alternating current leading-out terminal C2 of 3 phase AC solid relay SSR2 connect respectively the C phase input of described Integral braking reducing motor (1);
Described piezo-resistance RV1 is connected between the three-phase alternating current leading-out terminal A2 and three-phase alternating current leading-out terminal B2 of described 3 phase AC solid relay SSR1; Described piezo-resistance RV2 is connected between the three-phase alternating current leading-out terminal B2 and three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1; Described piezo-resistance RV3 is connected between the three-phase alternating current leading-out terminal A2 and three-phase alternating current leading-out terminal C2 of described 3 phase AC solid relay SSR1.
6. a kind of test according to claim 5 bounces up falling unit, it is characterized in that: the model of described decoding integration block U1 is 74HC138; The model of described phase inverter U2-U3 is 74HC14; The model of described photoelectrical coupler U4-U5 is TLP521-1; The model of described phase inverter U6-U9 is 74LS14; Model described or door integrated package U10 is 74LS32; The model of described rp-drive U11 is MC1413; The model of described 3 phase AC solid relay SSR1-SRR2 is SSR-3-380D10; Described upper limit travel switch SW1(4) with lower limit travel switch SW2(13) model be JLXK1-111; The model of described relay J 1-J4 is DS2Y-S-DC5V; The model of described piezo-resistance RV1-RV3 is MY31-5KA720V; The model of described fuse FU1-FU3 is RT28-32; The model of described Three-phase knife switch K is HK2-63/3; The model of described emergency stop switch SW3 is PBS-110 KAX-3.
7. a kind of test according to claim 6 bounces up falling unit, it is characterized in that: the model of described microcomputer is Lenovo Qitian M4330; The model of described capture card is PCI-MIO-16XE-10; The model of described Integral braking reducing motor (1) is S32DT71D4.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269758A (en) * | 2018-10-30 | 2019-01-25 | 北京航天益森风洞工程技术有限公司 | A kind of wind-tunnel Three Degree Of Freedom model interposer control system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2326674Y (en) * | 1997-07-18 | 1999-06-30 | 戴伊禧 | Entering-exiting type automobile lifter |
| JP2001328797A (en) * | 2000-05-22 | 2001-11-27 | Matoba Denki Seisakusho:Kk | Lift device for storage |
| CN2700458Y (en) * | 2004-01-12 | 2005-05-18 | 常春之 | Wall plastering machine |
| CN201132751Y (en) * | 2007-11-09 | 2008-10-15 | 成都飞机工业（集团）有限责任公司 | Multifunction bracket loader |
| CN103466507A (en) * | 2012-06-06 | 2013-12-25 | 株式会社安川电机 | Lifting device |
-
2014
- 2014-02-21 CN CN201410059885.2A patent/CN103791784B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2326674Y (en) * | 1997-07-18 | 1999-06-30 | 戴伊禧 | Entering-exiting type automobile lifter |
| JP2001328797A (en) * | 2000-05-22 | 2001-11-27 | Matoba Denki Seisakusho:Kk | Lift device for storage |
| CN2700458Y (en) * | 2004-01-12 | 2005-05-18 | 常春之 | Wall plastering machine |
| CN201132751Y (en) * | 2007-11-09 | 2008-10-15 | 成都飞机工业（集团）有限责任公司 | Multifunction bracket loader |
| CN103466507A (en) * | 2012-06-06 | 2013-12-25 | 株式会社安川电机 | Lifting device |
Non-Patent Citations (1)
| Title |
|---|
| 崔忠伟等: "一种无线电引信杆试验升降装置", 《探测与控制学报》, no. 01, 31 March 1998 (1998-03-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269758A (en) * | 2018-10-30 | 2019-01-25 | 北京航天益森风洞工程技术有限公司 | A kind of wind-tunnel Three Degree Of Freedom model interposer control system and method |
| CN109269758B (en) * | 2018-10-30 | 2021-03-26 | 北京航天益森风洞工程技术有限公司 | Wind tunnel three-degree-of-freedom model insertion mechanism control system and method |
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