CN103293070A - Wire jacket tearing detection device - Google Patents
Wire jacket tearing detection device Download PDFInfo
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- CN103293070A CN103293070A CN2013102259571A CN201310225957A CN103293070A CN 103293070 A CN103293070 A CN 103293070A CN 2013102259571 A CN2013102259571 A CN 2013102259571A CN 201310225957 A CN201310225957 A CN 201310225957A CN 103293070 A CN103293070 A CN 103293070A
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Abstract
The embodiment of the invention discloses a wire jacket tearing detection device. The wire jacket tearing detection device comprises a control unit, a simulation unit and a detection unit, wherein the simulation unit is connected with the control unit to simulate the situation of a tested wire under the squeezing of a lateral sharp instrument at an electrification state, the detection unit is connected with the simulation unit to detect the safety performance of the tested wire under the working state of the simulation unit, and the simulation unit is provided with a first connecting end and a second connecting end, which are electrically connected with two test ends of the tested wire so as to enable the tested wire to be electrified. Through the simulation unit and the detection unit, which are connected with the control unit, the synchronous intelligent test and detection can be realized, the detection efficiency is high, and the detection result is accurate.
Description
Technical field
The present invention relates to electric wire detection technique field, relate in particular to a kind of trunking discerption detecting device.
Background technology
For the detection of electric wire, not only to carry out conventional sense, also to carry out various safety simultaneously and detect.Wherein, electric wire and cable jacket is torn test, is whether electric wire manufacturer or quality testing department simulation electric wire can occur opening a way when being subjected to the extruding of the sharp device of side direction, the safety testing of short circuit, electric leakage.Generally adopt manual mode to carry out the trunking tear test at present on the market, soon electric wire is fixed on and has on the anchor clamps that the inclination angle is 45 ° of inclined-planes, directly over the anchor clamps inclined-plane, be provided with the wimet pressure head of seamed edge, the counterweight of additional predetermined weight above pressure head, adopt mode manually, the weight of counterweight is repeatedly repeated to be applied to the tested wire surface by pressure head, be subjected to the state of the sharp device extruding of side direction with the simulation electric wire; After reaching the extruding number of times that regulation requires, again to the trunking tear place open a way respectively, Performance Detection such as short circuit and electric leakage.
Adopt the weight that repeatedly repeats manually to be attached to counterweight on the pressure head by the analog form of pressure head to tested wire enforcement extruding, have following defective at least: 1, need great amount of manpower to drop into; 2, process of the test is loaded down with trivial details and speed is slow; 3, under situation manually, the weight of counterweight can't be grasped impact velocity and the momentum of electric wire extruding, and experimentation numerous uncertain factors of having mixed have a strong impact on test effect.
Adopt manually respectively to electric wire open a way, the mode of Performance Detection such as short circuit, electric leakage exists many defectives equally: 1, there is certain artificial interference in manual operations, influences the accuracy of testing result; When 2, having two or more to occur unusually simultaneously in open circuit, short circuit, the electric leakage, can't distinguish which occurs unusually at first, not meet the trunking tear test and arbitrary detection requirement of reporting to the police immediately and shutting down unusually occurs; 3, the power that reaches voltage, electric current all can change the isostructural physical attribute of lead in the electric wire, insulation course and sheath because whether electric wire switches on, and during energising, electric wire weakens because reasons such as heating can cause the anti-damage performance of electric wire, and existing trunking tear test is to carry out under the situation of not load with voltage, therefore the situation that this process of the test can not the load with voltage in use of real simulation electric wire, emulation is not high, and then causes the follow-up performance that can't accurately detect in the electric wire use yet.
Because existing trunking is torn in the test, simulation test and Performance Detection program all adopt operation manually, and carry out step by step, not only be difficult to electric wire in the simulating reality life and under charged state, be subjected to the process of sharp device extruding, the electric wire testing process lags behind sheath tear test process simultaneously, can't detect the situation that is torn electric wire in the experimentation in real time, testing result is not accurate enough.
Summary of the invention
Embodiment of the invention technical matters to be solved is, a kind of trunking discerption detecting device is provided, and intelligent running is easy and simple to handle when realizing simulation test and Performance Detection, the emulation height, and testing result is accurate.
In order to solve the problems of the technologies described above, the embodiment of the invention has proposed a kind of trunking discerption detecting device, comprise control module, link to each other to simulate the analogue unit that tested wire is pushed by the sharp device of side direction under electriferous state with control module, and link to each other to detect the detecting unit of the security performance of tested wire under the analogue unit duty with analogue unit; Described analogue unit is provided with in order to two test leads being electrically connected tested wire so that charged first terminals and second terminals of tested wire.
Further, described analogue unit comprises column, be arranged at the fixed cross beam on column top, be fixedly installed in the fixed cross beam bottom pressure head, be movably set in the fixed cross beam below moved cross beam, be arranged at a relative side with pressure head of moved cross beam in order to the anchor clamps of clamping tested wire, and link to each other with moved cross beam with the driving moved cross beam and on the anchor clamps driving mechanism that makes the tested wire that is held on the anchor clamps pushed repeatedly by pressure head with respect to the pressure head to-and-fro movement; A relative side with pressure head of described anchor clamps arranges and is the dip plane.
Further, described driving mechanism comprise the top be fixed in screw mandrel on the moved cross beam, be screwed together in nut on the screw mandrel, be fixedly arranged on the holder motor and between motor output shaft and described nut the gear train of transmission power, described nut rotatably be arranged on the holder and with holder screw mandrel axially on relative fixed.
Further, described control module comprises the power sensor that is arranged on the fixed cross beam, be arranged at the displacement transducer on the moved cross beam, link to each other to extract the data acquisition module of power sensor and displacement transducer induction information with power sensor and displacement transducer, the control module with the data message of extraction data collecting module collected of linking to each other with the running of control driving mechanism and with data acquisition module links to each other with driving mechanism, link to each other with the operational module to the control module input control order with control module, and link to each other with control module and display control interface for input control order and show the display module of the data message of data collecting module collected in real time.
Further, described detecting unit comprises at least a in the following testing circuit: open detection circuit, short-circuit detecting circuit and electric-leakage detection circuit, detecting unit also comprises and links to each other to judge the decision circuitry of tested wire performance according to the detection signal of each testing circuit input with each testing circuit, wherein:
Described open detection circuit comprises that first mutual inductor, the input end in order to the current signal of responding to the tested wire live wire links to each other to extract the first current detecting plate of current signal with first mutual inductor, and an end links to each other with the current signal output pin of the first current detecting plate and first normally closed contact that the other end links to each other with decision circuitry;
Described short-circuit detecting circuit comprises between the live wire that is series at tested wire first test lead and the zero line and constitutes first resistance of first series circuit, be series between the zero line of tested wire second test lead and the ground wire and constitute second resistance of second series circuit, respectively in order to second mutual inductor and the 3rd mutual inductor of the current signal of responding to first series circuit and second series circuit, input end links to each other to extract the second current detecting plate and the 3rd current detecting plate of current signal respectively with second mutual inductor and the 3rd mutual inductor, one end links to each other with the current signal output pin of the second current detecting plate and second normally closed contact that the other end links to each other with decision circuitry, and an end links to each other with the current signal output pin of the 3rd current detecting plate and the 3rd normally closed contact that the other end links to each other with decision circuitry;
Described electric-leakage detection circuit comprises and connects tested wire live wire and described trunking discerption detecting device exterior case and export this electric potential difference voltage of signals check-out console to decision circuitry detecting when having electric potential difference between tested wire live wire and the casing.
Further, described decision circuitry links to each other with control module, and exports stopping signal to control module when judging that according to detection signal tested wire has open circuit, short circuit or leaky.
Further, described detecting unit also comprises the warning circuit that links to each other with decision circuitry, described warning circuit is provided with visual alarm and/or voice guard, and described visual alarm comprises open circuit pilot lamp, short circuit pilot lamp and the electric leakage pilot lamp that corresponds respectively to open detection circuit, short-circuit detecting circuit, electric-leakage detection circuit setting.
Further, described detecting unit also comprises current foldback circuit, and described current foldback circuit comprises that an end links to each other with the over-current signal output pin of the first current detecting plate and normally opened contact that the other end links to each other with decision circuitry.
Further, described analogue unit also comprises in order to link to each other forming the loading interfaces of high tension loop with tested wire with the voltage output end of external voltage load device and resistance output terminal.
Further, described analogue unit also comprises and covers at the column periphery to form the protective cover of sealing work space; But described protective cover is provided with the protective cover door of closure or openness, and links to each other with control module with closed at the protective cover door or control the position sensing mechanism that described trunking discerption detecting device starts or shuts down by control module when opening.
The beneficial effect of the embodiment of the invention is: by analogue unit and the detecting unit that links to each other with control module is set, highly imitate the state of tested wire when pushed by the sharp device of side direction, and realize the synchronous Intelligent Measurement of tested wire correlated performance simultaneously, easy and simple to handle, the emulation height effectively improves detection speed, simplify testing process, reduce cost of labor, avoid artificial error or external interference simultaneously, testing result is accurate.
Description of drawings
Fig. 1 is the stereographic map of the trunking discerption detecting device of the embodiment of the invention.
Fig. 2 is the structural representation of the analogue unit of the embodiment of the invention.
Fig. 3 is that anchor clamps and the pressure head of the embodiment of the invention is equipped with structural representation.
Fig. 4 is total frame diagram of the trunking discerption detecting device of the embodiment of the invention.
Fig. 5 is the detecting unit loading section circuit theory diagrams of the embodiment of the invention.
Fig. 6 is the detecting unit test section circuit theory diagrams of the embodiment of the invention.
Fig. 7 is the circuit theory diagrams of the connection external voltage load device of the embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can mutually combine, and below in conjunction with the drawings and specific embodiments the present invention are described in further detail.
As Fig. 1 ~ shown in Figure 7, the embodiment of the invention provides a kind of trunking discerption detecting device, comprises control module 10, analogue unit 20 and detecting unit 30.
Described analogue unit 20 links to each other with described control module 10, in order to be subjected to outer side to the state of sharp device extruding under electriferous state at simulation tested wire 100 under the control of described control module 10.Please refer to Fig. 1, described analogue unit 20 is provided with first terminals 201 and second terminals 202, be respectively applied to be electrically connected first test lead 101 and second test lead 102 of described tested wire 100, realizing the charging test of described tested wire 100, and then can truly detect described tested wire 100 and under actual use state, be subjected to the every security performance of outer side in the sharp device extrusion process.
See also Fig. 1, Fig. 2, described analogue unit 20 comprises column 21, fixed cross beam 22, moved cross beam 23, pressure head 24, anchor clamps 25 and driving mechanism 26.
Described fixed cross beam 22 is fixedly set in the top of described column 21, and described moved cross beam 23 is movably set in the below of described fixed cross beam 22.Described anchor clamps 25 are in order to the described tested wire 100 of clamping, and described pressure head 24 is oppositely arranged with anchor clamps 25, and is individually fixed in the opposite side of described fixed cross beam 22 and moved cross beam 23.Described driving mechanism 26 links to each other with described moved cross beam 23, do straight reciprocating motion up and down to drive described moved cross beam 23, and then drive anchor clamps 25 on the described moved cross beam 23 and move up and down with respect to described pressure head 24 and make the tested wire 100 that is held on the described anchor clamps 25 be subjected to the extruding repeatedly of described pressure head 24, finish the trunking tear test.Please refer to Fig. 3, in the present embodiment, arranging with described pressure head 24 relative sides of described anchor clamps 25 is the dip plane, to form the side direction acting force that more tallies with the actual situation in described tested wire 100 surfaces; And the connecting to arrange on one side with described anchor clamps 25 and be the arc transition face of described pressure head 24, to avoid in extrusion process cutting off described tested wire 100 owing to the edge is too sharp.
Please refer to Fig. 2, in the embodiment of the invention, described driving mechanism 26 comprises screw mandrel 261, nut 262, motor 263 and gear train 264.
The bottom of described moved cross beam 23 is fixed on the top of described screw mandrel 261, described nut 262 arranges also with described screw mandrel 261 couplings and is screwed together on the described screw mandrel 261, described nut 262 rotatably be arranged on the holder 265 and with described holder 265 described screw mandrel 261 axially on relative fixed.
Described motor 263 is used for driving described nut 262 and rotates and then drive described screw mandrel 261 and finish and pump.In the embodiment of the invention, described motor 263 is fixedly arranged on the described holder 265, and its output shaft is in transmission connection by deceleration system 266 and described gear train 264.Described control module 10 is by described motor 263 runnings of servo driver drives.
Described gear train 264 comprise with the output shaft of described motor 263 coaxial fixedly connected the driving wheel that is integral, with the described nut 262 coaxial engaged wheels that are integral of fixedlying connected, and be set around driving-belt on described driving wheel and the engaged wheel.In the embodiment of the invention, described gear train 264 preferably is set to the accurately steady and high synchronous pulley driving mechanism of transmission efficiency of transmission, and namely described driving wheel and engaged wheel are set to driving pulley and driven pulley respectively, and described driving-belt then is to be with synchronously.As a kind of embodiment, described gear train 264 also can be set to pulley transmission mechanism, and namely described driving wheel and engaged wheel are respectively driving pulley and driven pulley, and described driving-belt then is driving belt; Or also can be set to chain wheel driving mechanism.Certainly, can also shaft coupling between the output shaft of described motor 263 and the described nut 262 dock or be in transmission connection with gear driving pair.
Please refer to Fig. 2, described column 21 is fixed on the operation platen 27, described moved cross beam 23 is positioned at the top of described operation platen 27, described driving mechanism 26 then is positioned at the below of described operation platen 27, fixedlys connected with described moved cross beam 23 after passing described operation platen 27 in the top of described screw mandrel 261.As shown in Figure 1, when specifically implementing, described operation platen 27 belows arrange and are cabinet, 26 inside that are placed in described cabinet of described driving mechanism.
Please continue with reference to figure 1; for ensureing the security of described trunking discerption detecting device work; the periphery of described column 21 is covered with protective cover 28; to form the work space of sealing; but its front end is provided with the protective cover door 281 of closure or openness, so that the staff finishes the relevant operation of test front and back.In the embodiment of the invention, described protective cover 28 whole settings are transparent, and perhaps, described at least protective cover door 281 arranges and is transparent.Described protective cover 28 also is provided with the position sensing mechanism 282 that links to each other with described control module 10 simultaneously, closes or unlatching information is controlled startup or the shutdown of described trunking discerption detecting device with the described protective cover door of sensing by described position sensing mechanism 282 281.In the embodiment of the invention, described position sensing mechanism 282 preferably is set to limit switch, closes described protective cover door 281, described limit switch closure, and the described trunking discerption detecting device of described control module 10 controls this moment starts running; In case described protective cover door 281 is opened, described limit switch namely disconnects, and described trunking discerption detecting device is shut down at once, detects the security of operation with protection.
Please refer to Fig. 4, described control module 10 is in order to control described analogue unit 20 by the default sheath tear test of finishing tear edge value, test number (TN) and interval time described tested wire 100, and it specifically comprises power sensor 11, displacement transducer 12, data acquisition module 13, control module 14, operational module 15 and display module 16.
Described power sensor 11 is fixed on the described fixed cross beam 22, in order to respond to the acting force that produces when described anchor clamps 25 push in opposite directions with described pressure head 24.
Described displacement transducer 12 is fixed on the described moved cross beam 23, in order to responding to the displacement number of times of described moved cross beam 23, and then finishes the statistics to test number (TN).
Described data acquisition module 13 and described power sensor 11 and displacement transducer 12 link to each other to extract the induction information of described power sensor 11 and displacement transducer 12.
Described control module 14 links to each other with described data acquisition module 13 to extract the data message that described data acquisition module 13 is gathered, and links to each other to control described driving mechanism 26 runnings according to the data message of described data acquisition module 13 collections simultaneously with described driving mechanism 26.
Described operational module 15 links to each other with described control module 14 with to described control module 14 input control orders.
The data message that described display module 16 links to each other with described control module 14 and obtains with the described data acquisition module 13 of real-time demonstration, and display control interface is for input control order.
In the embodiment of the invention, described data acquisition module 13 is arranged at independently on the multifunctional data acquisition card, described control module 14 is arranged on the control circuit board that links to each other with described multifunctional data acquisition card 13, described operational module 15 is provided with the operation push-button that links to each other with described control circuit board, and 16 of described display modules are set to the LED display that links to each other with described control circuit board 14.As a kind of embodiment, described display module 16 can be set to touch display screen, and described data acquisition module 13, control module 14 and operational module 15 all can be integrated on the described touch display screen.
Please refer to Fig. 5, Fig. 6, in the embodiment of the invention, described detecting unit 30 comprises at least a in the following testing circuit: open detection circuit, short-circuit detecting circuit and electric-leakage detection circuit, described detecting unit 30 also comprise with each testing circuit and link to each other to judge the decision circuitry 34 of tested wire 100 correlated performances according to the detection signal of each testing circuit input.Described decision circuitry 34 links to each other with described control module 10 simultaneously; and when the detection signal that provides according to each testing circuit judges that described tested wire 100 has open circuit, short circuit or leaky to described control module 10 output stopping signals, control the shutdown that in time resets of described trunking discerption detecting device with this.
Described open detection circuit comprises that first mutual inductor 311, the input end in order to the current signal of responding to tested wire 100 live wires links to each other to extract the first current detecting plate 312 of current signal with described first mutual inductor 311, and an end links to each other with the current signal output pin of the described first current detecting plate 312 and first normally closed contact 313 that the other end links to each other with described decision circuitry 34.
When the live wire of described tested wire 100 had electric current to pass through, described first mutual inductor 311 was sensed current signal, and the described first current detecting plate 312 detects this current signal simultaneously and keeps described first normally closed contact 313 to be in opening; When the live wire no current of described tested wire 100 passes through, 311 inductions of described first mutual inductor are less than current signal, the described first current detecting plate 312 detects namely closed described first normally closed contact 313 of described first mutual inductor, 311 no signal currents output, and this moment, described decision circuitry 34 was namely judged described tested wire 100 open circuits.
Described short-circuit detecting circuit comprises between the live wire that is series at tested wire 100 first test leads 101 and the zero line and constitutes first resistance 321 of first series circuit, be series between the zero line of tested wire 100 second test leads 102 and the ground wire and constitute second resistance 322 of second series circuit, second mutual inductor 323 and the 3rd mutual inductor 324 in order to respond to first series circuit and the second series circuit current signal respectively, input end links to each other to extract the second current detecting plate 325 and the 3rd current detecting plate 326 of current signal respectively with second mutual inductor 323 and the 3rd mutual inductor 324, one end links to each other with the current signal output pin of the second current detecting plate 325 and second normally closed contact 327 that the other end links to each other with decision circuitry 34, and an end links to each other with the current signal output pin of the 3rd current detecting plate 326 and the 3rd normally closed contact 328 that the other end links to each other with decision circuitry 34.
Please refer to Fig. 5, the live wire of described tested wire 100 second test leads 102 is connected to power supply by the switch 35 of controlled unit 10 controls, closed described switch 35, and VR namely forms the loop.Under the situation of loop normally, described first resistance 321 and second resistance 322 all have electric current to pass through, described second mutual inductor 323 and the 3rd mutual inductor 324 are sensed current signal and are transferred to the described second current detecting plate 325 and the 3rd current detecting plate 326, and the described second current detecting plate 325 and the 3rd current detecting plate 326 keep described second normally closed contact 327 and the 3rd normally closed contact 328 to be in opening detecting under the situation of current signal.
When the live wire of described tested wire 100 and zero line short circuit, described first resistance, 321 no currents pass through, and 323 inductions of described second mutual inductor are less than current signal, and the described second current detecting plate 325 detects no signal current simultaneously, at this moment, described second normally closed contact 327 is closed; When the zero line of described tested wire 100 and earth short, described second resistance, 322 no currents pass through, and 324 inductions of described the 3rd mutual inductor are less than current signal, and described the 3rd current detecting plate 326 detects less than current signal, at this moment, described the 3rd normally closed contact 328 is closed; When the live wire of described tested wire 100 and earth short or live wire and the short circuit simultaneously of zero line, zero line and ground wire, when described first resistance 321 and second resistance, 322 equal no currents pass through, described second mutual inductor 323 and the 3rd mutual inductor 324 are all responded to less than current signal, the described second current detecting plate 325 and 326 of the 3rd current detecting plates all detect less than current signal, at this moment, described second normally closed contact 327 and the 3rd normally closed contact 328 are closed simultaneously.
Described electric-leakage detection circuit comprises and connects tested wire 100 live wires and described trunking discerption detecting device exterior case and detecting when having electric potential difference between described tested wire 100 live wires and the casing to decision circuitry 34 these electric potential difference voltage of signals check-out consoles 331 of output.
Under the normal condition, potential-free is poor between described tested wire 100 live wires and the described trunking discerption detecting device exterior case, represents described tested wire 100 electric leakages when between described tested wire 100 live wires and the described trunking discerption detecting device exterior case electric potential difference being arranged when described voltage detecting plate 331 detects.
As shown in Figure 6, described detecting unit 30 also comprises the warning circuit that links to each other with described decision circuitry 34 simultaneously, and described warning circuit can be set to visual alarm and/or voice guard.In the embodiment of the invention, described warning circuit is provided with visual alarm and audible alarm, described visual alarm is specially open circuit pilot lamp 351, short circuit pilot lamp 352 and the electric leakage pilot lamp 353 that corresponds respectively to described open detection circuit, short-circuit detecting circuit, electric-leakage detection circuit setting, described voice guard then is set to hummer 354, to open corresponding visual alarm and to open audible alarm simultaneously when described decision circuitry 34 judges that described tested wire 100 exists open circuit, short circuit or electric leakage.
When the described trunking discerption detecting device of the use embodiment of the invention carries out sheath tear test and security performance detection to tested wire 100, open described protective cover door 281, described tested wire 100 is fixed on the described anchor clamps 25, and makes live wire, zero line and the ground wire of first test lead 101 of described tested wire 100 and second test lead 102 be connected to the corresponding interface of described first terminals 201 and second terminals 202 respectively; Close described protective cover door 281, described limit switch closure, described trunking discerption detecting device enters the preliminary work state; By control coefrficients such as described operational module 15 input tear edge values, test number (TN), interval times, and start described trunking discerption detecting device; Described driving mechanism 26 drives the anchor clamps 25 that are arranged on the described moved cross beam 23 and draws close and push against that towards described pressure head 24 tested wire 100 that is fixed on the described anchor clamps 25 is formed squeezing action power in opposite directions, the acting force of 25 pairs of described pressure heads 24 of the described power sensor 11 described anchor clamps of induction also feeds back to described control module 10, amount of force until 25 pairs of described pressure heads 24 of described anchor clamps reaches the tear edge value that sets in advance, described control module 10 is namely controlled described driving mechanism 26 and is driven described anchor clamps 25 and be located away from described pressure head 24 and reset, described displacement transducer 12 is responded to the displacement information of described moved cross beam 23 simultaneously, and the one replication displacement that is about to described moved cross beam 23 feeds back to described control module 10 as single test; Do not detect anyly when unusual at described detecting unit 30, described analogue unit 20 repeats aforesaid operations until finishing default test number (TN), shutdowns that reset of described trunking discerption detecting device, and described tested wire 100 detections are qualified.In the specific implementation, described control module 10 also can arrange qualified pilot lamp simultaneously, with when detect judging that described tested wire 100 is qualified, opens described qualified pilot lamp, gives the staff corresponding showy information.
In the process of the test of described analogue unit 20; if the described first current detecting plate 312 detects less than current signal; described first normally closed contact, 313 closures; described decision circuitry 34 judges that namely there is open circuit in described tested wire 100; and open described open circuit pilot lamp 351 and hummer 354; to described control module 10 output stopping signals, described trunking discerption detecting device resets and shuts down simultaneously.In like manner; when the described second current detecting plate 325 and/or the 3rd current detecting plate 326 detect less than current signal; described second normally closed contact 327 and/or the 3rd normally closed contact 328 are closed; described decision circuitry 34 judges that namely there is short circuit in described tested wire 100; and open described short circuit pilot lamp 352 and hummer 354, simultaneously to described control module 10 output stopping signals.When described voltage detecting plate 331 detects when having electric potential difference between the exterior case of described trunking discerption detecting device and described tested wire 100 live wires; namely send this electric potential difference signal to described decision circuitry 34; described decision circuitry 34 judges that namely there is electric leakage in described tested wire 100; and open described electric leakage pilot lamp 353 and hummer 354, simultaneously to described control module 10 output stopping signals.
At the electric wire of certain applications under special hyperbaric environment, for the described tested wire 100 of real simulated more is subjected to the state of the sharp device extruding of side direction when the band high pressure, described analogue unit 20 also is provided with the loading interfaces 29 in order to connect the external voltage load device.As shown in Figure 7, V+ among Fig. 7, V-, R+, R-are four wiring end points of described loading interfaces 29, during detection, the respective terminal point that voltage output end and the resistance output terminal correspondence of external voltage load device is connected to described loading interfaces 29 is to form high tension loops with described tested wire 100.
Meanwhile, described detecting unit 30 also is provided with current foldback circuit, and described current foldback circuit comprises that an end links to each other with the over-current signal output pin of the described first current detecting plate 312 and normally opened contact 361 that the other end links to each other with described decision circuitry 34.Described current foldback circuit is used for sending stopping signal by described decision circuitry 34 to described control module 10 when the electric current of described tested wire 100 exceeds rated current, with the security of protection pick-up unit work.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claims and equivalency range thereof.
Claims (10)
1. trunking discerption detecting device, it is characterized in that, comprise control module, link to each other to simulate the analogue unit that tested wire is pushed by the sharp device of side direction under electriferous state with control module, and link to each other to detect the detecting unit of the security performance of tested wire under the analogue unit duty with analogue unit; Described analogue unit is provided with in order to two test leads being electrically connected tested wire so that charged first terminals and second terminals of tested wire.
2. trunking discerption detecting device as claimed in claim 1, it is characterized in that, described analogue unit comprises column, be arranged at the fixed cross beam on column top, be fixedly installed in the fixed cross beam bottom pressure head, be movably set in the fixed cross beam below moved cross beam, be arranged at a relative side with pressure head of moved cross beam in order to the anchor clamps of clamping tested wire, and link to each other with moved cross beam with the driving moved cross beam and on the anchor clamps driving mechanism that makes the tested wire that is held on the anchor clamps pushed repeatedly by pressure head with respect to the pressure head to-and-fro movement; A relative side with pressure head of described anchor clamps arranges and is the dip plane.
3. trunking discerption detecting device as claimed in claim 2, it is characterized in that, described driving mechanism comprise the top be fixed in screw mandrel on the moved cross beam, be screwed together in nut on the screw mandrel, be fixedly arranged on the holder motor and between motor output shaft and described nut the gear train of transmission power, described nut rotatably be arranged on the holder and with holder screw mandrel axially on relative fixed.
4. trunking discerption detecting device as claimed in claim 2, it is characterized in that, described control module comprises the power sensor that is arranged on the fixed cross beam, be arranged at the displacement transducer on the moved cross beam, link to each other to extract the data acquisition module of power sensor and displacement transducer induction information with power sensor and displacement transducer, the control module with the data message of extraction data collecting module collected of linking to each other with the running of control driving mechanism and with data acquisition module links to each other with driving mechanism, link to each other with the operational module to the control module input control order with control module, and link to each other with control module and display control interface for input control order and show the display module of the data message of data collecting module collected in real time.
5. trunking discerption detecting device as claimed in claim 1, it is characterized in that, described detecting unit comprises at least a in the following testing circuit: open detection circuit, short-circuit detecting circuit and electric-leakage detection circuit, detecting unit also comprises and links to each other to judge the decision circuitry of tested wire performance according to the detection signal of each testing circuit input with each testing circuit, wherein:
Described open detection circuit comprises that first mutual inductor, the input end in order to the current signal of responding to the tested wire live wire links to each other to extract the first current detecting plate of current signal with first mutual inductor, and an end links to each other with the current signal output pin of the first current detecting plate and first normally closed contact that the other end links to each other with decision circuitry;
Described short-circuit detecting circuit comprises between the live wire that is series at tested wire first test lead and the zero line and constitutes first resistance of first series circuit, be series between the zero line of tested wire second test lead and the ground wire and constitute second resistance of second series circuit, respectively in order to second mutual inductor and the 3rd mutual inductor of the current signal of responding to first series circuit and second series circuit, input end links to each other to extract the second current detecting plate and the 3rd current detecting plate of current signal respectively with second mutual inductor and the 3rd mutual inductor, one end links to each other with the current signal output pin of the second current detecting plate and second normally closed contact that the other end links to each other with decision circuitry, and an end links to each other with the current signal output pin of the 3rd current detecting plate and the 3rd normally closed contact that the other end links to each other with decision circuitry;
Described electric-leakage detection circuit comprises and connects tested wire live wire and described trunking discerption detecting device exterior case and export this electric potential difference voltage of signals check-out console to decision circuitry detecting when having electric potential difference between tested wire live wire and the casing.
6. trunking discerption detecting device as claimed in claim 5 is characterized in that, described decision circuitry links to each other with control module, and exports stopping signal to control module when judging that according to detection signal tested wire has open circuit, short circuit or leaky.
7. trunking discerption detecting device as claimed in claim 5, it is characterized in that, described detecting unit also comprises the warning circuit that links to each other with decision circuitry, described warning circuit is provided with visual alarm and/or voice guard, and described visual alarm comprises open circuit pilot lamp, short circuit pilot lamp and the electric leakage pilot lamp that corresponds respectively to open detection circuit, short-circuit detecting circuit, electric-leakage detection circuit setting.
8. trunking discerption detecting device as claimed in claim 5; it is characterized in that; described detecting unit also comprises current foldback circuit, and described current foldback circuit comprises that an end links to each other with the over-current signal output pin of the first current detecting plate and normally opened contact that the other end links to each other with decision circuitry.
9. trunking discerption detecting device as claimed in claim 5 is characterized in that, described analogue unit also comprises in order to link to each other forming the loading interfaces of high tension loop with tested wire with the voltage output end of external voltage load device and resistance output terminal.
10. trunking discerption detecting device as claimed in claim 2 is characterized in that, described analogue unit also comprises and covers at the column periphery to form the protective cover of sealing work space; But described protective cover is provided with the protective cover door of closure or openness, and links to each other with control module with closed at the protective cover door or control the position sensing mechanism that described trunking discerption detecting device starts or shuts down by control module when opening.
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| CN104635103A (en) * | 2013-11-15 | 2015-05-20 | 珠海格力电器股份有限公司 | Power cord detection unit |
| CN105334357A (en) * | 2015-11-27 | 2016-02-17 | 福建联迪商用设备有限公司 | Automatic testing device and method for POS machine |
| CN105424761A (en) * | 2015-12-08 | 2016-03-23 | 北京金风科创风电设备有限公司 | Toothed belt detection device and method and variable pitch device |
| CN106290025A (en) * | 2016-08-31 | 2017-01-04 | 李芹 | A kind of method that can detect also early warning buried optical cable pressure |
| CN106370591A (en) * | 2016-08-24 | 2017-02-01 | 上海交通大学 | Test machine for lubrication and friction and abrasion features of bearing bush |
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| CN111108364A (en) * | 2017-07-31 | 2020-05-05 | 陶氏环球技术有限责任公司 | Apparatus for tear analysis of a film |
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| CN113970687A (en) * | 2021-10-28 | 2022-01-25 | 中铁第四勘察设计院集团有限公司 | Cable test method for normally-conducting high-speed magnetic suspension long stator ground coil |
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| CN104635103A (en) * | 2013-11-15 | 2015-05-20 | 珠海格力电器股份有限公司 | Power cord detection unit |
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| CN105424761B (en) * | 2015-12-08 | 2019-01-29 | 北京金风科创风电设备有限公司 | Toothed belt detection device and method and variable pitch device |
| CN106370591A (en) * | 2016-08-24 | 2017-02-01 | 上海交通大学 | Test machine for lubrication and friction and abrasion features of bearing bush |
| CN106290025A (en) * | 2016-08-31 | 2017-01-04 | 李芹 | A kind of method that can detect also early warning buried optical cable pressure |
| CN106646060A (en) * | 2016-12-30 | 2017-05-10 | 北京金风科创风电设备有限公司 | Super capacitor reliability test system and temperature imbalance test method |
| CN106646060B (en) * | 2016-12-30 | 2019-07-05 | 北京金风科创风电设备有限公司 | Super capacitor reliability test system and temperature imbalance test method |
| CN111108364A (en) * | 2017-07-31 | 2020-05-05 | 陶氏环球技术有限责任公司 | Apparatus for tear analysis of a film |
| CN108152157A (en) * | 2018-01-17 | 2018-06-12 | 甘世昌 | A kind of cable skin quality detection device |
| CN108152157B (en) * | 2018-01-17 | 2020-11-17 | 义乌市添诚科技有限公司 | Cable surface skin quality detection device |
| CN111929534A (en) * | 2020-08-11 | 2020-11-13 | 郑州妙灿智能科技有限公司 | Cable skin detection equipment that breaks |
| CN113970687A (en) * | 2021-10-28 | 2022-01-25 | 中铁第四勘察设计院集团有限公司 | Cable test method for normally-conducting high-speed magnetic suspension long stator ground coil |
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