CN103162923A - Testing circuit of service life of slingshot wire - Google Patents
Testing circuit of service life of slingshot wire Download PDFInfo
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- CN103162923A CN103162923A CN2011104137724A CN201110413772A CN103162923A CN 103162923 A CN103162923 A CN 103162923A CN 2011104137724 A CN2011104137724 A CN 2011104137724A CN 201110413772 A CN201110413772 A CN 201110413772A CN 103162923 A CN103162923 A CN 103162923A
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Abstract
The invention discloses a testing circuit of service life of a slingshot wire. The testing circuit of the service life of the slingshot wire comprises a control circuit and a main return circuit control motor (M), wherein the control circuit is composed of a counter (102), a first relay (K1), a second relay (K2), a fourth relay (K4), a first field-effect tube (Q1), a second field-effect tube (Q2), a power supply conversion module (104) and the like. The main return circuit control motor (M) is composed of a delay relay (103), a first reed pipe (A1), a second reed pipe (A2), a third relay (K3) and the like. The main return circuit control motor (M) rotates backwards or forwards so that the slingshot wire can be switched between a pulled state and a normal state. The counter (102) is used for counting times of the slingshot wire when the slingshot line is pulled. Thus, a test on the service life of the slingshot wire can be automatically achieved. No people are required to pull the slingshot wire so as to reduce labor intensity of experimenting staff, and testing efficiency is improved.
Description
Technical field
The present invention relates to measuring technology, relate in particular to a kind of catapult line life test circuit.
Background technology
At present, lighting has been widely used in every field.Although the lighting that every field is used is not quite similar, purpose is all illumination, boosts productivity and workman's production security.Wherein, a kind of lighting is to be supported by cylinder, provides mains lighting supply by cable, thereby can realize long distance illumination.But the cable of this lighting is to be contained in cylinder interior, along with cylinder rises, therefore need the cable with this cylinder interior, make the cable of the same shape of spring, when cylinder rises like this, cable as spring is slowly stretching, makes its cylinder reach certain height, when cylinder descends, cable reverts to the spring shape, thereby avoid cable at random in cylinder interior, the cable as spring, be named as the catapult line like this.
In the process of illumination, because cylinder can move up and down, the catapult line also can move up and down along with this cylinder, thereby makes this catapult line at extended state and normal condition Transforms, therefore, needs to consider the impact of this stretching on the life-span of catapult line.Usually the catapult line being carried out life test, is to be stretched by laboratory technician's manpower, and not only testing efficiency is lower but carry out life test by the laboratory technician, also makes laboratory technician's labour intensity increase.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, a kind of catapult line life test circuit is provided, and can automatically carry out life test to the catapult line, promotes testing efficiency, lowers laboratory technician's labour intensity.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of catapult line life test circuit, comprising:
The first tongue tube (A1) and the second tongue tube (A2) that relative spacing arranges,
Be set on tested catapult line and be positioned at described the first tongue tube (A1) and the second tongue tube (A2) between magnetic field module (101),
The motor (M) that is used for the tested catapult line of scrolling,
Be used for recording the counter (102) of the number of times that the catapult line is stretched,
The timing relay (103) that is used for timing, and
First to fourth relay (K1, K2, K3, K4), the first field effect transistor and the second field effect transistor (Q1, Q2) are for external AC power being converted to the power transfer module (104) of DC voltage;
One end of the coil of described the first relay (K1) is connected with the output terminal of described power transfer module (104), the other end is connected with the drain electrode of described the first field effect transistor (Q1), the source ground of described the first field effect transistor (Q1), grid is connected with an end of described the first tongue tube (A1), and the other end of described the first tongue tube (A1) is connected with the output terminal of described power transfer module (104);
One end of the coil of described the second relay (K2) is connected with the output terminal of described power transfer module (104), the other end is connected with the drain electrode of described the second field effect transistor (Q2), the source ground of described the second field effect transistor (Q2), grid is connected with an end of described the second tongue tube (A2), and the other end of described the second tongue tube (A2) is connected with the output terminal of described power transfer module (104);
The output terminal that first unsettled pin (19) and the common pin (18) of one end of the coil of described the 4th relay (K4) by described counter (102) is connected in described power transfer module (104), the other end ground connection of the coil of described the 4th relay (K4), the AC power input pin of described counter (102) (15,13) external AC power supply, direct supply pin (4) and input pin (1) are connected respectively the two ends of the normal open switch (K11) of the first relay (K1); Normal open switch (K11) closure when described the first relay (K1), described counter (102) counting, count when described counter (102) and reach predefined testing time, the common pin (18) of described counter (102) and the described first unsettled pin (19) disconnection;
The two ends of the coil of described the 3rd relay (K3) are connected to normally closed contact pin (6) and the first AC power input pin (2) of described timing relay (103), the first AC power input pin (2) of described timing relay (103) and the second AC power input pin (7) are by normal open switch (K41) external AC power supply of described the 4th relay (K4), and the moving contact pin (8) of described timing relay (103) is connected with the second AC power input pin (7); When described timing relay (103) timing reaches the very first time that predefined catapult line is stretched, the moving contact pin (8) of described timing relay (103) disconnects with normally closed stationary contact pin (5), is connected with the described stationary contact pin (6) of often opening; When described timing relay (103) timing reaches the second time that predefined catapult line recovers normal condition, the moving contact pin (8) of described timing relay (103) is often opened stationary contact pin (6) with it and is disconnected, and the moving contact pin (8) of described timing relay (103) is connected with the normally closed stationary contact pin (5) of described timing relay (103);
the input end of described motor (M) is by the normally closed switch (K12) of the first relay (K1), the normally closed switch (K32) of the 3rd relay (K3) is connected in the normal open switch (K41) and first of described timing relay (103) of described the 4th relay (K4), two AC power input pins (2, 7) node between, series circuit one end that is comprised of the normal open switch (K31) of the normally closed switch (K21) of the second relay (K2) and the 3rd relay (K3) is connected in the input end of described motor (M), the other end is connected in the normal open switch (K41) and first of timing relay (103) of described the 4th relay (K4), two AC power input pins (2, 7) node between, when the normally closed switch (K32) of the normally closed switch (K12) of described the first relay (K1), the 3rd relay (K3) is closed, described motor (M) forward, when the normally closed switch (K22) of described the second relay (K2), normal open switch (K31) closure of the 3rd relay (K3), described motor (M) counter-rotating.
Wherein, described catapult line life test circuit also comprises the first electric capacity (C1) and the second electric capacity (C2), described the first electric capacity (C1) is connected between the grid and ground of described the first field effect transistor (Q1), and described the second electric capacity (C2) is connected between the grid and ground of described the second field effect transistor (Q2).
Wherein, described catapult line life test circuit also comprises the 5th relay (K5), the 3rd field effect transistor (Q3), and the 3rd tongue tube (A5) that arranges with the first tongue tube (A1) and the second tongue tube (A2) interval,
one end of the coil of described the 5th relay (K5) connects the output terminal of power transfer module (104), the other end is connected with the drain electrode of described the 3rd field effect transistor (Q3), the source ground of described the 3rd field effect transistor (Q3), grid is connected with an end of described the 3rd tongue tube (A5), the other end of described the 3rd tongue tube (A5) is connected with the output terminal of described power transfer module (104), the normally closed switch (K52) of described the 5th relay (K5) is connected in first of described timing relay (103), two AC power input pins (2, 7) and between the normal open switch (K41) of the 4th relay (K4).
Wherein, described catapult line life test circuit also comprises the 3rd electric capacity (C3), and described the 3rd electric capacity (C3) is connected between the grid and ground of described the 3rd field effect transistor (Q3).
Wherein, described power transfer module (104) comprises transformer (T1), bridge rectifier unit (B1) and the 5th filter capacitor (C5) that is used for filtering;
The two ends external AC power supply of the primary coil of described transformer (T1), the two ends of secondary coil are connected with two input ends of bridge rectifier unit (B1), the positive pole of the output terminal of described bridge rectifier unit (B1) is connected in the common port of the common pin (18) of described first and second relay (K1, K2) sum counter (102), the minus earth of the output terminal of described bridge rectifier unit (B1); Described the 5th electric capacity (C5) is connected in parallel between the positive pole and negative pole of output terminal of described bridge rectifier unit (B1).
Wherein, described power transfer module (104) also comprises three-terminal voltage-stabilizing unit (Q4) and is used for the 4th electric capacity (C4) of filtering, the input end of described three-terminal voltage-stabilizing unit (Q4) is electrically connected to the positive pole of described bridge rectifier unit (B1) output terminal, the output terminal of described three-terminal voltage-stabilizing unit (Q4) is connected in common pin (18) common port of described first and second relay (K1, K2) sum counter (102), the earth terminal ground connection of described three-terminal voltage-stabilizing unit (Q4); One end of described the 4th electric capacity (C4) is connected with the output terminal of described three-terminal voltage-stabilizing unit (Q4), and another is connected in the earth terminal of described three-terminal voltage-stabilizing unit (Q4).
Wherein, the model of described three-terminal voltage-stabilizing unit (Q4) is 7812 types.
Wherein, described catapult line life test circuit also comprises alarm module, the input end of described alarm module is connected with the stationary contact pin (17) of often opening of described counter (102), the output head grounding of described alarm module, when described counter (102) counting reaches predefined testing time, the common pin (18) of described counter (102) is connected with the described second unsettled pin (17), and described alarm module is reported to the police.
Wherein, the model of described counter (102) is the TCN-P61B type.
Wherein, the model of described timing relay (103) is the DH48S-S type.
Implement the embodiment of the present invention, have following beneficial effect:
the catapult line life test circuit of the embodiment of the present invention passes through by counter (102), first, two, four relay (K1, K2, K4), first, two field effect transistor (Q1, Q2) and the control circuit that forms such as power transfer module (104), and by timing relay (103), first, two tongue tube (A1, A2), the major loop that the 3rd relay (K3) etc. form is controlled motor (M) forward, with stretching catapult line, and control motor (M) counter-rotating makes the catapult line recover normal condition, and record by counter (102) number of times that this catapult line is stretched, when its counting reaches predefined number of times, controlling motor (M) stops operating, complete test, thereby realize automatically the life test that stretches of catapult line, reduce laboratory technician's labour intensity, improved testing efficiency.
The catapult line life test circuit of the embodiment of the present invention is also by setting up the 3rd tongue tube (A5), the 5th relay (K5), the 3rd field effect transistor (Q3) etc.; made when the first tongue tube (A1) lost efficacy; controlled the power supply that disconnects motor (M) by the 3rd tongue tube (A5), the 5th relay (K5); stop test; thereby avoided when the first tongue tube (A1) lost efficacy; motor (M) is rotated further; make the catapult line be pulled on and put in motor (M); and then protected motor (M) and catapult line, also more reliable.
The catapult line life test circuit of the embodiment of the present invention also by setting up alarm module, after test finishes, sends the alarm notification employee by this alarm module and tests end, thereby do not need the laboratory technician constantly keeping.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit theory diagrams of an embodiment of catapult line life test circuit of the present invention;
Fig. 2 is the circuit theory diagrams of the another embodiment of catapult line life test circuit of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The catapult line life test circuit of the embodiment of the present invention is by adopting the control circuit that is comprised of counter, relay, field effect transistor etc., control the forward of motor/counter-rotating in conjunction with the major loop that is formed by timing relay, relay etc., thereby the forward by motor stretches to the catapult line, counter-rotating makes the catapult line recover normal condition, and count by counter the number of times that the catapult line is stretched, thereby realize the test to the catapult line life-span, reduce employee's labour intensity, and improved testing efficiency.
Referring to Fig. 1, be the circuit theory diagrams of an embodiment of a kind of catapult line life test circuit of the present invention.During concrete enforcement, the catapult line life test circuit of the embodiment of the present invention comprises: the motor M that is used for the tested catapult line of scrolling; The first tongue tube A1 and the second tongue tube A2 that relative spacing arranges, and be set on tested catapult line and the magnetic field module 101 between the first tongue tube A1 and the second tongue tube A2; Be used for recording the counter 102 of the number of times that tested catapult line is stretched, the timing relay 103 that is used for timing, and the power transfer module 104 that is used for external AC power is converted to DC voltage, first to fourth relay K 1, K2, K3, K4, the first field effect transistor Q1, the second field effect transistor Q2;
Wherein, two of power transfer module 104 input ends are connected with zero line input end N with live wire input end L respectively;
One end of the coil of the first relay K 1 is connected with the output terminal of power transfer module 104, the other end is connected with the drain electrode of the first field effect transistor Q1, the source ground of the first field effect transistor Q1, grid is connected with the end of the first tongue tube A1, and the other end of the first tongue tube A1 is connected with the output terminal of power transfer module 104;
One end of the coil of the second relay K 2 is connected with the output terminal of power transfer module 104, the other end is connected with the drain electrode of the second field effect transistor Q2, the source ground of the second field effect transistor Q2, grid is connected with the end of the second tongue tube A2, and the other end of the second tongue tube A2 is connected with the output terminal of power transfer module 104;
The output terminal that normally closed first unsettled pin 19 and the common pin 18 of one end of the coil of the 4th relay K 4 by counter 102 is connected in power transfer module 104, the other end ground connection of the coil of the 4th relay K 4, the AC power input pin 15,13 of counter 102 is connected with zero line input end N with live wire input end L respectively, and direct supply pin 4 and input pin 1 are connected respectively the two ends of the normal open switch K11 of the first relay K 1; When the normal open switch K11 of the first relay K 1 closure, counter 102 is counted, and counts when counter 102 to reach predefined testing time, and the common pin 18 of counter 102 and the first unsettled pin 19 disconnect;
The two ends of the coil of the 3rd relay K 3 are connected to normally closed contact pin 6 and the first AC power input pin 2 of timing relay 103, the first AC power input pin 2 of timing relay 103 is connected with live wire input end L with zero line input end N respectively with the normal open switch K41 of the second AC power input pin 7 by the 4th relay K 4, and the moving contact pin 8 of timing relay 103 is connected with the second AC power input pin 7; When timing relay 103 timing reach the very first time that predefined catapult line is stretched, the moving contact pin 8 of timing relay 103 disconnects with normally closed stationary contact pin 5, with often open stationary contact pin 6 and be connected, this moment the 3rd relay K 3 access power supplys, its corresponding normal open switch K31 is closed; When timing relay 103 timing reach the second time that predefined catapult line recovers normal condition, moving contact pin 8 and its of timing relay 103 often opened stationary contact pin 6 and disconnected, the moving contact pin 8 of timing relay 103 is connected with the normally closed stationary contact pin 5 of timing relay 103, this moment the 3rd relay K 3 deenergizations, its corresponding normal open switch K31 disconnects;
The normally closed switch K32 of the normally closed switch K12 of the input end of motor M by the first relay K 1, the 3rd relay K 3 is connected in the node between first and second AC power input pin 2,7 of the normal open switch K41 of the 4th relay K 4 and timing relay 103, series circuit one end that is comprised of the normal open switch K31 of the normally closed switch K21 of the second relay K 2 and the 3rd relay K 3 is connected in the input end of motor M, and the other end is connected in the node between first and second AC power input pin 2,7 of the normal open switch K41 of the 4th relay K 4 and timing relay 103; When the normally closed switch K32 of the normally closed switch K12 of the first relay K 1, the 3rd relay K 3 is closed, institute's motor M forward; When the normally closed switch K22 of the second relay K 2, the normal open switch K31 closure of the 3rd relay K 3, motor M counter-rotating.
when the AC power of the live wire input end L of this test circuit and the external 220V of zero line input end N, power transfer module 104 is converted to the AC power of this 220V DC voltage and the output of 12V, the 4th relay K 4 is by the first normally closed unsettled pin 19 and common pin 18 these DC voltage of access of counter 102, the normal open switch K41 of the 4th relay K 4 correspondences is closed, timing relay 103 and motor M incoming transport power supply, normally closed switch K12 due to the first relay K 1, the normally closed switch K32 of the 3rd relay K 3 is closed, therefore motor M begins forward, the catapult line begins to stretch, the timing relay 103 of incoming transport power supply begins the time of these motor M forwards of timing simultaneously,
when the catapult line is stretched to home, when namely being set in magnetic field module 101 close the first tongue tube A1 on the catapult line, this first tongue tube A1 conducting, the grid access high level of the first field effect transistor Q1, this first field effect transistor Q1 conducting, the coil access power supply of the first relay K 1, its corresponding normal open switch K11 is closed, number of counter 102 notes, when timing relay 103 timing reach the very first time that predefined catapult line is stretched, the moving contact pin 8 of this timing relay 103 with often open stationary contact pin 6 and be connected, thereby the 3rd relay K 3 access power supplys, its corresponding to normally closed switch K32 disconnect, normal open switch K31 is closed, the motor M counter-rotating, be that the catapult line begins to recover normal condition, this timing relay 103 begins the time that timing motor M reverse simultaneously,
when the catapult line returns to the normal position, when namely being set in magnetic field module 101 close the second tongue tube A2 on the catapult line, this second tongue tube A2 conducting, the grid access high level of the second field effect transistor Q2, this second field effect transistor Q2 conducting, the coil access power supply of the second relay K 2, its corresponding normally closed switch K21 disconnects, motor M stops counter-rotating, when timing relay 103 timing reach the second time that predefined catapult line recovers normal condition, the moving contact pin 8 of this timing relay 103 is connected with normally closed stationary contact pin 5, thereby the 3rd relay K 3 deenergizations, its corresponding to normally closed switch K32 closed, normal open switch K31 disconnects, motor is the M forward again, time of timing motor forward again, so circulation,
When the counting of counter 102 arrives predefined testing time, the common pin 18 of this counter 102 and the first unsettled pin 19 disconnect, i.e. the 4th relay K 4 deenergizations, and its corresponding normal open switch K41 disconnects, thereby timing relay 103 and motor M deenergization, test is completed.
The test circuit of the embodiment of the present invention adopts magnet as magnetic field module 101, and the model of counter 102 is TCN-P61B, and the model of timing relay 103 is DH48S-S.
Referring to Fig. 1, the catapult line life test circuit of the embodiment of the present invention also can comprise the first capacitor C 1, the second capacitor C 2 for filtering, this first capacitor C 1 is connected between the grid and ground of the first field effect transistor Q1, and the second capacitor C 2 is connected between the grid and ground of the second field effect transistor Q2.
referring to Fig. 1, in one embodiment, the power transfer module 104 of the test circuit of the embodiment of the present invention comprises transformer T1, bridge rectifier unit B 1, the 5th capacitor C 5 that is used for filtering, and the two ends of the primary coil of transformer T1 are connected with zero line input end N with live wire input end L respectively, the two ends of secondary coil are connected with two input ends of bridge rectifier unit B 1 respectively, the positive pole of the output terminal of bridge rectifier unit B 1 is connected in first, two relay K 1, K2, the common port of the common pin 18 of counter 102, the minus earth of this bridge rectifier unit B 1 output terminal, the 5th filter capacitor C5 is connected in parallel between the positive pole and negative pole of output terminal of this bridge rectifier unit B 1.The test circuit of the embodiment of the present invention is converted to AC power by this power transfer module 104 power supplies such as the backward counter 102 of DC voltage, first and second relay K 1, K2.
Referring to Fig. 1, this power transfer module 104 of the embodiment of the present invention also can comprise three-terminal voltage-stabilizing unit Q4 and be used for the 4th capacitor C 4 of filtering, the input end of this three-terminal voltage-stabilizing unit Q4 is electrically connected to the positive pole of bridge rectifier unit B 1 output terminal, its output terminal is connected in the common port of the common pin 18 of this first and second relay K 1, K2, counter 102, its earth terminal ground connection, one end of the 4th capacitor C 4 is connected with the output terminal of three-terminal voltage-stabilizing unit Q4, and the other end is connected in the earth terminal of three-terminal voltage-stabilizing unit Q4.The embodiment of the present invention is passed through this three-terminal voltage-stabilizing of the output process unit Q4 with bridge rectifier unit B 1, thereby provides galvanic current to press to relay, counter etc.
The home of the catapult line in the embodiment of the present invention refers to that the catapult line is stretched, be that the catapult line is when being in extended state, in this catapult line can not impaired situation, its position farthest that end can reach that stretches, the normal position of catapult line refers to that the catapult line is not stretched, do not have yet compressed, when namely the catapult line is in normal condition, the position at its end place that stretches.
Certainly also can adopt other electronic switches to replace field effect transistor in this test circuit in the embodiment of the present invention, such as triode etc.
Certainly also can adopt the reed switch relay that is consisted of by a plurality of tongue tubes in the embodiment of the present invention, perhaps replace this first, second tongue tube in the embodiment of the present invention by displacement transducer.Certainly also can adopt the bridge rectifier unit in the embodiment of the present invention in power transfer module 104, also can adopt the rectification circuit of other types.
implement the catapult line life test circuit of the embodiment of the present invention, after the 4th relay K 4 accesses power supplys by counter 102, its normal open switch K41 is closed, motor M begins forward, the stretching end that is the catapult line is stretched, and timing relay 103 beginning timing, when the stretching end of catapult line is stretched the arrival home, magnetic field module 101 is near the first tongue tube A1, thereby the magnetic field of its generation makes two contact adhesives of the first tongue tube A1, i.e. this first tongue tube A1 conducting, field effect transistor Q1 is conducting also, make the two ends access power supply of the coil of the first relay K 1, the normal open switch K11 of the first relay K 1 is closed, thereby counter 102 counting catapult lines are stretched once, when the timing arrival very first time of timing relay 103, make the two ends access power supply of the coil of the 3rd relay K 3, its corresponding normal open switch K31 is closed, normally closed switch K32 disconnects, motor M begins counter-rotating, be that the catapult line begins from the recovering state that is stretched to normal condition, its end that stretches returns to the normal position from home, timing relay 103 timing catapult lines recover the normal time simultaneously, when catapult line drawing end reaches the normal position, this magnetic field module 101 is near the second tongue tube A2, thereby the magnetic field of its generation makes two contact adhesives of the second tongue tube A2, i.e. this second tongue tube A2 conducting, the also Q2 conducting of the second field effect transistor, make the two ends access power supply of the coil of the second relay K 2, the normally closed switch K21 of the second relay K 2 disconnects, motor stops counter-rotating, when timing relay 103 timing reached for the second time, the 3rd relay K 3 deenergizations, its normal open switch K31 disconnects, normally closed switch K32 is closed, motor M begins again forward, when the stretching end of catapult line again be stretched to this home the time, the normal open switch K11 of the first relay K 1 is closed, counter 102 is counted again, so circulation is until the counting of counter 102 reaches predefined testing time, thereby realize the life test to the catapult line, avoid adopting manpower stretching catapult line to carry out life test, and then improved testing efficiency, and reduced employee's labour intensity.
Referring to Fig. 2, be the circuit theory diagrams of the another embodiment of catapult line life test circuit of the present invention.during concrete enforcement, the catapult line life test circuit of the embodiment of the present invention comprises the power transfer module 104 in above-described embodiment, counter 102, chronotron 103, first to fourth relay K 1, K2, K3, K4, motor M, magnetic field module 101, the first tongue tube A1, the second tongue tube A2, the first to second field effect transistor Q1, Q2, the first capacitor C 1 that is used for filtering, the second capacitor C 2, identical element adopts identical Reference numeral, the catapult line life test circuit of the embodiment of the present invention that different is also comprises: with the first tongue tube A1, the 3rd tongue tube A5 of the second tongue tube A2 interval setting, the 5th relay K 5, the 3rd field effect transistor Q3, the 3rd capacitor C 3,
One end of the coil of the 5th relay K 5 is connected with the drain electrode of the 3rd field effect transistor Q3, the other end connects the output terminal of power transfer module 104, the source ground of the 3rd field effect transistor Q3, grid is connected with the end of the 3rd tongue tube A2, the other end of the 3rd tongue tube A5 is connected with the output terminal of power transfer module 104, the normally closed switch K52 of the 5th relay K 5 is connected between the normal open switch K41 of first and second AC power input pin 2, the 7 and the 4th relay K 4 of timing relay 103, and the 3rd capacitor C 3 is connected between the grid and ground of the 3rd field effect transistor Q3.
When the extreme position in the embodiment of the present invention referred to that tested catapult line is stretched, its end that stretches was stretched over the position of home certain distance.
implement the catapult line life test circuit of the embodiment of the present invention, by the 3rd tongue tube A5 is set, when the stretching end of catapult line is stretched to this extreme position, magnetic field module 101 makes the 3rd tongue tube A5 conducting, thereby make the 3rd field effect transistor Q3 conducting, the 5th relay K 5 access power supplys, its corresponding normally closed switch K52 disconnects, motor M and timing relay 103 deenergizations, motor M stops operating, namely by the 3rd tongue tube (A5), the 5th relay K 5 and the 3rd field effect transistor Q3 etc. control the power supply of timing relay 103 and motor M, thereby avoid when the catapult line is stretched to extreme position, because losing efficacy, the first tongue tube A1 caused the catapult line to be drawn in motor M, and then catapult line and motor M have further been protected, improved the reliability of this test circuit.
referring to Fig. 2, during concrete enforcement, the catapult line life test circuit of the embodiment of the present invention is except comprising the power transfer module 104 in above-described embodiment, counter 102, timing relay 103, the first to the 5th relay K 1, K2, K3, K4, K5, motor M, magnetic field module 101, the first tongue tube A1, the second tongue tube A2, the 3rd tongue tube A5, the first to the 3rd field effect transistor Q1, Q2, Q3, the first to the 3rd filter capacitor C1, C2, C3, identical element adopts identical Reference numeral, also can comprise the hummer SP1 as alarm module, its input end is connected with the second unsettled pin 17 of counter 102, output head grounding, when counter 102 counting reaches predefined testing time, the common pin 18 of counter 102 is connected with the second unsettled pin 17, makes this alarm module access power supply begin warning.Implement the catapult line life test circuit of the embodiment of the present invention, by alarm module being set when test is completed, because the second unsettled pin 17 of counter 102 is connected with common pin 18, thereby this hummer SP1 accesses power supply, complete thereby in time notify the laboratory technician to test, avoid test to complete and the ignorant situation of laboratory technician.
For the catapult line life test circuit of the embodiment of the present invention is described better, describe below in conjunction with the catapult line life test circuit of its principle of work to the embodiment of the present invention.
before testing, at first motor M is fixed, and the first tongue tube A1, the second tongue tube A2, the 3rd tongue tube A5 are separately fixed at corresponding to catapult line 105 home, the catapult line 105 of end when being stretched the stretch extreme position of end of the normal position of end and catapult line 105 that stretches that stretches, the frequency n that when then test is set in counter 102, catapult line 102 need to be stretched, the very first time T1 that catapult line 105 is stretched is set in timing relay 103, it is the time of motor M forward, and catapult 105 lines recover the second time T 2 of normal condition, it is the time of motor M counter-rotating, after setting parameter, the rotating shaft of motor M and the stretching end of catapult line 105 are linked together, magnetic field module 101 is fixed on the stretching end of catapult line 105, its stretching end with catapult line 105 is moved and mobile, access at last the 220V AC power, the live wire input end L that is whole test circuit connects live wire, zero line input end N connects zero line.
referring to Fig. 1 and Fig. 2, during beginning, the stretching end of catapult line 105 is positioned at the normal position, after the incoming transport power supply, the AC power of this 220V is through transformer T1 transformation, 1 rectification of bridge rectifier unit B, the 5th capacitor C 5 filtering, again through the 12V DC voltage of three-terminal voltage-stabilizing unit Q4 stable output, again after the 4th capacitor C 4 filtering, electric current flows into respectively first, two, five relay K 1, K2, the coil of K5, but due to the first to the 3rd field effect transistor Q1, Q2, the grid of Q3 does not have voltage, all not conductings, therefore, the moving contact of the first relay K 1 is failure to actuate, be that its normal open switch K11 keeps often opening, it is normally closed that normally closed switch K12 keeps, the moving contact of the second relay K 2 is failure to actuate, be that its normally closed switch K22 maintenance is normally closed, the moving contact of the 3rd relay K 3 is failure to actuate, be that its normal open switch K31 keeps often opening, it is normally closed that normally closed switch K32 keeps, the moving contact of the 5th relay K 5 is failure to actuate, be that its normally closed switch K52 maintenance is normally closed, the DC current of three-terminal voltage-stabilizing unit Q4 output simultaneously is by the coil of normally closed common pin 18 and first unsettled pin 19 inflow the 4th relay K 4 of counter 102, the normal open switch K41 of the 4th relay K 4 correspondences is closed, thereby the alternating current of 220V is through the 4th relay K 4 normal open switch K41, the normally closed switch K52 of the 5th relay K 5 reaches timing relay 103, and this alternating current is again through the normally closed switch K32 of the 3rd relay K 3, the normally closed switch K12 of the first relay K 1 reaches motor M, motor M begins forward, the stretching end that is the catapult line is stretched, timing relay 103 begins the time that timing catapult lines 102 are stretched simultaneously, when the stretching end of catapult line 105 is stretched to home, close the first tongue tube A1 of magnetic field module 101 that catapult line 105 stretches and holds, two contact adhesives of the first tongue tube A1 are tongue tube A1 conducting, thereby the grid of the first field effect transistor Q1 access high level, the first field effect transistor Q1 conducting, make the coil access power supply of the first relay K 1, its corresponding normal open switch K11 is closed, counter 102 these catapult lines 105 of counting are stretched once, the normally closed switch K12 of the first relay K 1 correspondence disconnects simultaneously, motor M stops forward.The very first time T1 that common predefined catapult line is stretched is greater than or equal to the actual time that is stretched of catapult line 105.after timing relay 103 timing reach T1, the second stationary contact 5 that it is normally closed and moving contact 8 disconnect, the first stationary contact 6 is connected with moving contact 8, thereby the coil of the 3rd relay K 3 access power supply, its corresponding normally closed switch K32 disconnects, normal open switch K31 is closed, make the anti-phase AC power of motor M access, begin counter-rotating, thereby 105 beginnings of catapult line recover normal condition gradually, when the stretching end of catapult line 105 returns to the normal position, magnetic field module 101 due to catapult line 105 stretching ends, away from the first tongue tube A1, two contacts of tongue tube A1 disconnect, field effect transistor Q1 cut-off, the normally closed switch K12 of the first relay K 1 is again closed, when this magnetic field module 101 close the second tongue tube A2, i.e. the second tongue tube A2 conducting of two contact adhesives of the second tongue tube A2, thereby the grid of the second field effect transistor Q2 access high level, i.e. the second field effect transistor Q2 conducting, the coil access power supply of the second relay K 2, its corresponding normally closed switch K22 disconnects, be that the motor M counter-rotating finishes.Common predefined catapult line recovers the time of normal condition, i.e. catapult line drawing end returns to entopic the second time T 1 from home and is greater than or equal to the time that the actual recovery of catapult line 105 needs.when timing relay 103 timing reach the second time T 2, the first stationary contact 6 that it is connected and moving contact 8 disconnect, moving contact 8 is connected with this second stationary contact 5 again, namely the 3rd relay K 3 disconnects, its corresponding normally closed switch K32 is closed, normal open switch K31 disconnects, the motor M forward, catapult line 105 is stretched again, when the stretching end of catapult line 105 is stretched to home again, the magnetic field module 101 of catapult line 105 stretching ends makes its adhesive near the first tongue tube A1 again, thereby the first field effect transistor Q1 conducting, the coil access power supply of the first relay K 1, its corresponding normal open switch K11 is closed, counter 102 is counted again, so the process circulation is until the counting of this counter 102 reaches predefined testing time, test is completed, the common pin 18 of counter 102 and the first unsettled pin 19 disconnect, be connected with the second unsettled pin 17, thereby hummer SP1 alarm laboratory technician test is completed.
when the stretching end of catapult line 102 is stretched to home, but the first tongue tube A1 does not have conducting, when namely the first tongue tube A1 lost efficacy, this catapult line 105 stretches to hold and is stretched continuing, when it is stretched to extreme position, magnetic field module 101 makes its adhesive near the 3rd tongue tube A5, the grid access high level of the 3rd field effect transistor Q3, the 3rd field effect transistor Q3 conducting, the coil access power supply of the 5th relay K 5, its corresponding normally closed switch K52 disconnects, thereby the power supply of off delay relay 103 and motor M, and then avoid catapult line 105 to be stretched in motor M, motor M and catapult line 105 have been protected, further improved the reliability of this test circuit.
Implement the catapult line life test circuit of the embodiment of the present invention, can automatically record catapult line 105 drawing numberses, and send alarm sound and notify the laboratory technician after testing, thereby not needing the laboratory technician need not adopt manpower to stretch tests, also carve keeping when not required and record drawing numbers, and then improved testing efficiency, reduced laboratory technician's labour intensity, and this test circuit structure of the embodiment of the present invention is simple, reliability is higher.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and according to the equivalent variations that claim of the present invention is done, still belong to the scope that invention is contained.
Claims (10)
1. a catapult line life test circuit, is characterized in that, comprising:
The first tongue tube (A1) and the second tongue tube (A2) that relative spacing arranges,
Be set on tested catapult line and be positioned at described the first tongue tube (A1) and the second tongue tube (A2) between magnetic field module (101),
The motor (M) that is used for the tested catapult line of scrolling,
Be used for recording the counter (102) of the number of times that the catapult line is stretched,
The timing relay (103) that is used for timing, and
First to fourth relay (K1, K2, K3, K4), the first field effect transistor and the second field effect transistor (Q1, Q2) are for external AC power being converted to the power transfer module (104) of DC voltage;
One end of the coil of described the first relay (K1) is connected with the output terminal of described power transfer module (104), the other end is connected with the drain electrode of described the first field effect transistor (Q1), the source ground of described the first field effect transistor (Q1), grid is connected with an end of described the first tongue tube (A1), and the other end of described the first tongue tube (A1) is connected with the output terminal of described power transfer module (104);
One end of the coil of described the second relay (K2) is connected with the output terminal of described power transfer module (104), the other end is connected with the drain electrode of described the second field effect transistor (Q2), the source ground of described the second field effect transistor (Q2), grid is connected with an end of described the second tongue tube (A2), and the other end of described the second tongue tube (A2) is connected with the output terminal of described power transfer module (104);
The output terminal that first unsettled pin (19) and the common pin (18) of one end of the coil of described the 4th relay (K4) by described counter (102) is connected in described power transfer module (104), the other end ground connection of the coil of described the 4th relay (K4), the AC power input pin of described counter (102) (15,13) external AC power supply, direct supply pin (4) and input pin (1) are connected respectively the two ends of the normal open switch (K11) of the first relay (K1); Normal open switch (K11) closure when described the first relay (K1), described counter (102) counting, count when described counter (102) and reach predefined testing time, the common pin (18) of described counter (102) and the described first unsettled pin (19) disconnection;
The two ends of the coil of described the 3rd relay (K3) are connected to normally closed contact pin (6) and the first AC power input pin (2) of described timing relay (103), the first AC power input pin (2) of described timing relay (103) and the second AC power input pin (7) are by normal open switch (K41) external AC power supply of described the 4th relay (K4), and the moving contact pin (8) of described timing relay (103) is connected with the second AC power input pin (7); When described timing relay (103) timing reaches the very first time that predefined catapult line is stretched, the moving contact pin (8) of described timing relay (103) disconnects with normally closed stationary contact pin (5), is connected with the described stationary contact pin (6) of often opening; When described timing relay (103) timing reaches the second time that predefined catapult line recovers normal condition, the moving contact pin (8) of described timing relay (103) is often opened stationary contact pin (6) with it and is disconnected, and the moving contact pin (8) of described timing relay (103) is connected with the normally closed stationary contact pin (5) of described timing relay (103);
the input end of described motor (M) is by the normally closed switch (K12) of the first relay (K1), the normally closed switch (K32) of the 3rd relay (K3) is connected in the normal open switch (K41) and first of described timing relay (103) of described the 4th relay (K4), two AC power input pins (2, 7) node between, series circuit one end that is comprised of the normal open switch (K31) of the normally closed switch (K21) of the second relay (K2) and the 3rd relay (K3) is connected in the input end of described motor (M), the other end is connected in the normal open switch (K41) and first of timing relay (103) of described the 4th relay (K4), two AC power input pins (2, 7) node between, when the normally closed switch (K32) of the normally closed switch (K12) of described the first relay (K1), the 3rd relay (K3) is closed, described motor (M) forward, when the normally closed switch (K22) of described the second relay (K2), normal open switch (K31) closure of the 3rd relay (K3), described motor (M) counter-rotating.
2. catapult line life test circuit as claimed in claim 1, it is characterized in that, also comprise the first electric capacity (C1) and the second electric capacity (C2), described the first electric capacity (C1) is connected between the grid and ground of described the first field effect transistor (Q1), and described the second electric capacity (C2) is connected between the grid and ground of described the second field effect transistor (Q2).
3. catapult line life test circuit as claimed in claim 1, is characterized in that, also comprises the 5th relay (K5), the 3rd field effect transistor (Q3), and the 3rd tongue tube (A5) that arranges with the first tongue tube (A1) and the second tongue tube (A2) interval,
one end of the coil of described the 5th relay (K5) connects the output terminal of power transfer module (104), the other end is connected with the drain electrode of described the 3rd field effect transistor (Q3), the source ground of described the 3rd field effect transistor (Q3), grid is connected with an end of described the 3rd tongue tube (A5), the other end of described the 3rd tongue tube (A5) is connected with the output terminal of described power transfer module (104), the normally closed switch (K52) of described the 5th relay (K5) is connected in first of described timing relay (103), two AC power input pins (2, 7) and between the normal open switch (K41) of the 4th relay (K4).
4. catapult line life test circuit as claimed in claim 3, is characterized in that, also comprise the 3rd electric capacity (C3), described the 3rd electric capacity (C3) is connected between the grid and ground of described the 3rd field effect transistor (Q3).
5. catapult line life test circuit as claimed in claim 3, is characterized in that, described power transfer module (104) comprises transformer (T1), bridge rectifier unit (B1) and the 5th electric capacity (C5) that is used for filtering;
The two ends external AC power supply of the primary coil of described transformer (T1), the two ends of secondary coil are connected with two input ends of bridge rectifier unit (B1), the positive pole of the output terminal of described bridge rectifier unit (B1) is connected in the common port of the common pin (18) of described first and second relay (K1, K2) sum counter (102), the minus earth of the output terminal of described bridge rectifier unit (B1); Described the 5th electric capacity (C5) is connected in parallel between the positive pole and negative pole of output terminal of described bridge rectifier unit (B1).
6. catapult line life test circuit as claimed in claim 5, it is characterized in that, described power transfer module (104) also comprises three-terminal voltage-stabilizing unit (Q4) and is used for the 4th electric capacity (C4) of filtering, the input end of described three-terminal voltage-stabilizing unit (Q4) is electrically connected to the positive pole of described bridge rectifier unit (B1) output terminal, the output terminal of described three-terminal voltage-stabilizing unit (Q4) is connected in common pin (18) common port of described first and second relay (K1, K2) sum counter (102), the earth terminal ground connection of described three-terminal voltage-stabilizing unit (Q4); One end of described the 4th electric capacity (C4) is connected with the output terminal of described three-terminal voltage-stabilizing unit (Q4), and the other end is connected in the earth terminal of described three-terminal voltage-stabilizing unit (Q4).
7. catapult line life test circuit as claimed in claim 6, is characterized in that, the model of described three-terminal voltage-stabilizing unit (Q4) is 7812 types.
8. catapult line life test circuit as claimed in claim 1, it is characterized in that, also comprise alarm module, the input end of described alarm module is connected with the stationary contact pin (17) of often opening of described counter (102), the output head grounding of described alarm module, when described counter (102) counting reaches predefined testing time, the common pin (18) of described counter (102) is connected with the described second unsettled pin (17), described alarm module warning.
9. described catapult line life test circuit as arbitrary in claim 1 to 8, is characterized in that, the model of described counter (102) is the TCN-P61B type.
10. catapult line life test circuit as claimed in claim 9, is characterized in that, the model of described timing relay (103) is the DH48S-S type.
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| CN2011104137724A CN103162923A (en) | 2011-12-13 | 2011-12-13 | Testing circuit of service life of slingshot wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104137724A CN103162923A (en) | 2011-12-13 | 2011-12-13 | Testing circuit of service life of slingshot wire |
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Application publication date: 20130619 |