CN107037357B - Full-automatic breaker chassis vehicle mechanical life test system and method - Google Patents
Full-automatic breaker chassis vehicle mechanical life test system and method Download PDFInfo
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- CN107037357B CN107037357B CN201710401415.3A CN201710401415A CN107037357B CN 107037357 B CN107037357 B CN 107037357B CN 201710401415 A CN201710401415 A CN 201710401415A CN 107037357 B CN107037357 B CN 107037357B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention discloses a full-automatic breaker chassis vehicle mechanical life test system, which comprises: the touch screen is used as an input end for setting test parameters and control modes; the PLC core processing unit is used for outputting a first control command signal; processing the PLC digital signal; the servo controller is used for controlling the servo motor according to the switching value output signal and the first control command signal and sending out a second control command signal; the servo motor is used for converting the second control command signal into angular displacement or angular speed output on a motor shaft and controlling the position of a circuit breaker chassis vehicle sample; the torque sensor is used for collecting torque output by the servo motor to a circuit breaker chassis vehicle sample; an AD conversion unit for converting the torque electric signal into a PLC digital signal; the switching value input unit is used for converting the position state signal of the circuit breaker chassis vehicle sample into a position state digital signal; and the switching value output unit is used for outputting a signal switching value output signal.
Description
Technical Field
The invention relates to the field of high-voltage switch test equipment, in particular to a full-automatic breaker chassis vehicle mechanical life test system and method.
Background
The 1000 times mechanical life test of the chassis of the breaker in the high-voltage middle-mounted switch cabinet is a type test item of the high-voltage switch cabinet, and is a research means for verifying the reliability of the isolation plug and the chassis of the high-voltage switch cabinet. Along with the large-scale construction and transformation of a power distribution network in the period of thirteen-five countries, the quality of power distribution network equipment such as a high-voltage switch cabinet is more and more emphasized, and the test is also listed as an important spot check test item for checking the quality of the high-voltage switch cabinet.
At present, the basic practice of all domestic test stations and switch cabinet manufacturers is to carry out 1000 times of insertion and extraction test examination and product research on a circuit breaker chassis by using a manual rocker arm in a manual mode, and the main problems of the mode are long time consumption, great effort and low working efficiency, and moreover, the test effect is not ideal easily caused by unstable human factors such as quality, responsibility, operation proficiency and the like of personnel.
Therefore, with the annual increase of the test amount and the spot check workload of the high-voltage switch cabinet product type, a full-automatic breaker chassis mechanical life test system is urgently needed to solve the problem that the breaker chassis mechanical life cannot be rapidly and efficiently tested.
Disclosure of Invention
The invention provides a full-automatic breaker chassis mechanical life test system and method, which solve the problem that the mechanical life of a breaker chassis cannot be tested rapidly and efficiently.
In order to solve the above problems, according to one aspect of the present invention, there is provided a full-automatic breaker chassis mechanical life test system, the system comprising: the touch screen, the PLC core processing unit, the servo controller, the servo motor, the torque sensor, the AD conversion unit, the switching value input unit and the switching value output unit,
the touch screen is connected with the PLC core processing unit and used as an input end for setting test parameters and control modes;
the PLC core processing unit is respectively connected with the output ends of the switching value input unit and the AD conversion unit and the input end of the switching value output unit and is used for processing the position state digital signal and the input setting of the touch screen and outputting a first control command signal; processing the PLC digital signal;
the servo controller is respectively connected with the output ends of the switching value output unit and the PLC core processing unit and the input end of the servo motor, and is used for controlling the servo motor according to the switching value output signal output by the switching value output unit and the first control command signal and sending out a second control command signal;
the servo motor is used for converting the second control command signal into angular displacement or angular speed output on a motor shaft and controlling the position of a circuit breaker chassis vehicle sample;
the torque sensor is respectively connected with the output end of the servo motor and the input end of the AD conversion unit, and is used for collecting the torque output by the servo motor to a circuit breaker chassis vehicle sample, converting the torque into a torque electric signal and outputting the torque electric signal to the AD conversion unit;
the AD conversion unit is connected with the input end of the PLC core processing unit and is used for converting the torque electric signal into a PLC digital signal and outputting the PLC digital signal to the PLC core processing unit;
the switching value input unit is connected with the input end of the PLC core processing unit and is used for converting the position state signal of the circuit breaker chassis vehicle sample into a position state digital signal and outputting the position state digital signal to the PLC core processing unit;
the switching value output unit is used for obtaining a switching value output signal according to the processing result of the PLC core processing unit.
Preferably, wherein the system further comprises: a detachable circuit breaker chassis vehicle test article connecting shaft sleeve device and a bracket unit,
the detachable circuit breaker chassis car sample connecting shaft sleeve device includes: the device comprises an elastic coupling, a bearing group, an output shaft sleeve, an extension rod and a connecting shaft sleeve, wherein all the components are sequentially and mechanically connected, the elastic coupling is connected with a torque sensor, the connecting shaft sleeve is connected with a circuit breaker chassis car sample, and the connecting shaft sleeve device can adapt to circuit breaker chassis car connecting interfaces of different types;
the support unit is a three-layer four-column support structure, the top layer and the bottom layer are flat plates, the bottom layer flat plates are provided with universal wheels, the middle layer is an automatic lifting operation table, the operation table is lifted through a platform lifting mechanism, and the platform lifting mechanism is screw rod combined speed reducing mechanism equipment.
Preferably, the touch screen, the PLC core processing unit, the servo controller, the servo motor, the torque sensor unit, the switching value input unit, the switching value output unit, the time management control unit and the storage unit are located in an intermediate layer operation table of the support unit.
Preferably, wherein the test parameters include: test times, action time, period delay time, shaking speed, rotation angle, action protection time, rotation number protection value and moment protection value.
Preferably, the test times are set in a range of 1-99999, the operation speed is set in a range of 1-99.9 turns/min, the test position delay time is set in a range of 0-9999.9 seconds, the action protection time is set in a range of 0-999.9 seconds, the torque protection value is set in a range of 1-30NM, and the number of turns protection value is set in a range of 1-999.9 turns.
Preferably, wherein the system further comprises: and the judging unit is used for judging whether the circuit breaker chassis vehicle sample reaches a working position or a test position.
Preferably, the judging unit is specifically configured to: after executing the shake-in or shake-out command, if at least one of the torque, the rotation number or the action time is greater than a set value, a fault alarm is sent out; and otherwise, the circuit breaker chassis test sample reaches the working position or the test position, and the next command is executed.
Preferably, the control mode includes: an automatic control mode and a manual control mode.
According to another aspect of the invention, there is provided a fully automatic circuit breaker chassis mechanical life test method, the method comprising:
step 1, setting test parameters and control modes, wherein the test parameters comprise: test times, action time, period delay time, shaking speed, rotation angle, action protection time, rotation number protection value and moment protection value;
step 2, the PLC core processing unit acquires a first control command signal according to the position state digital signal and the input of the touch screen;
step 3, the servo control unit obtains a second control command signal according to the first control command signal and the switching value output signal output by the switching value output unit;
step 4, the servo motor converts the second control command signal into angular displacement or angular speed output on the motor shaft;
step 5, acquiring a torque electric signal output by the servo motor to a circuit breaker chassis vehicle sample, and converting the torque electric signal into a PLC digital signal;
step 6, collecting a position state signal of the circuit breaker chassis vehicle sample, converting the position state signal into a position state digital signal and sending the position state digital signal to a PLC core processing unit;
and 7, judging whether the test times reach the set test times, if so, ending, otherwise, returning to the step 2.
Preferably, the test times are set in a range of 1-99999, the operation speed is set in a range of 1-99.9 turns/min, the test position delay time is set in a range of 0-9999.9 seconds, the action protection time is set in a range of 0-999.9 seconds, the torque protection value is set in a range of 1-30NM, and the number of turns protection value is set in a range of 1-999.9 turns.
Preferably, wherein the method further comprises:
and judging whether the circuit breaker chassis vehicle sample reaches a working position or a test position.
Preferably, wherein the method comprises:
after executing the shake-in or shake-out command, if at least one of the torque, the rotation number or the action time is greater than a set value, a fault alarm is sent out; and otherwise, the circuit breaker chassis test sample reaches the working position or the test position, and the next command is executed.
Preferably, the control mode includes: an automatic control mode and a manual control mode.
The invention has the beneficial effects that:
the technical scheme of the invention provides a full-automatic breaker chassis vehicle mechanical life test system, which realizes automatic operation of tests, replaces manual operation, improves the working efficiency of test stations and manufacturers, and saves labor cost. In addition, the system disclosed by the invention can be applied to various types of high-voltage middle-mounted switch cabinets and has stronger practicality.
Drawings
Exemplary embodiments of the present invention may be more completely understood in consideration of the following drawings:
fig. 1 is a schematic structural diagram of a fully automatic circuit breaker chassis mechanical life test system 100 according to an embodiment of the present invention;
FIG. 2 is a block diagram of FIG. 1 of a fully automatic circuit breaker chassis mechanical life test system in accordance with an embodiment of the present invention;
FIG. 3 is a block diagram of FIG. 2 of a fully automatic circuit breaker chassis mechanical life test system in accordance with an embodiment of the present invention;
FIG. 4 is a block diagram 3 of a fully automatic circuit breaker chassis mechanical life test system in accordance with an embodiment of the present invention;
FIG. 5 is a block diagram of FIG. 4 of a fully automatic circuit breaker chassis mechanical life test system in accordance with an embodiment of the present invention;
FIG. 6 is a schematic diagram of a PLC core processing unit of a fully automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the connection of a PLC core processing unit, a servo controller and a servo motor of a full automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention;
FIG. 8 is a schematic program diagram of a servo controller controlling rotational speed according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of the circuit connections of a servo controller of a fully automatic circuit breaker chassis mechanical life test system in accordance with an embodiment of the present invention;
FIG. 10 is a schematic diagram of the connection of torque sensors of a fully automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention; and
fig. 11 is a flow chart of a fully automatic circuit breaker chassis mechanical life test method 1100 in accordance with an embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present invention and fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like elements/components are referred to by like reference numerals.
Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a schematic structural diagram of a fully automatic circuit breaker chassis mechanical life test system 100 according to an embodiment of the present invention. As shown in fig. 1, the fully automatic breaker chassis mechanical life test system 100 is used for fully automatically testing the mechanical life of the breaker chassis, and the system 100 includes: the touch panel 101, the PLC core processing unit 102, the servo controller 103, the servo motor 104, the torque sensor 105, the AD conversion unit 106, the switching value output unit 107, and the switching value input unit 108.
Preferably, wherein the system further comprises: detachable circuit breaker chassis car sample connection axle sleeve device and support unit, detachable circuit breaker chassis car sample connection axle sleeve device includes: the device comprises an elastic coupling, a bearing group, an output shaft sleeve, an extension rod and a connecting shaft sleeve, wherein all the components are sequentially and mechanically connected, the elastic coupling is connected with a torque sensor, the connecting shaft sleeve is connected with a circuit breaker chassis car sample, and the connecting shaft sleeve device can adapt to circuit breaker chassis car connecting interfaces of different types; the support unit is a three-layer four-column support structure, the top layer and the bottom layer are flat plates, the bottom layer flat plates are provided with universal wheels, the middle layer is an automatic lifting operation table, the operation table is lifted through a platform lifting mechanism, and the platform lifting mechanism is screw rod combined speed reducing mechanism equipment. In an embodiment of the invention, the touch screen, the PLC core processing unit, the servo controller, the servo motor, the torque sensor unit, the switching value input unit, the switching value output unit, the time management control unit and the storage unit are positioned in an intermediate layer operation table of the bracket unit. Fig. 2 is a block diagram of fig. 1 of a full automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention. Fig. 3 is a block diagram of fig. 2 of a full automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention. Fig. 4 is a block diagram 3 of a full automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention. Fig. 5 is a block diagram of fig. 4 of a full automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention. As shown in fig. 2, 3, 4 and 5, the structure diagram of the full-automatic breaker chassis mechanical life test system is shown, wherein 1 is a breaker chassis test article, 2 is a connecting shaft sleeve, 3 is an extension rod, 4 is an output shaft sleeve, 5 is a bearing group, 6 is an elastic coupling, 7 is a torque sensor, 8 is a platform lifting mechanism, 9 is a speed reducer, 10 is a servo motor, and 11 is a bracket unit.
Preferably, the touch screen 101 is connected to the PLC core processing unit, and is used as an input terminal for setting test parameters and control modes. Preferably, wherein the test parameters include: test times, action time, period delay time, shaking speed, rotation angle, action protection time, rotation number protection value and moment protection value. Preferably, the test times are set in a range of 1-99999, the operation speed is set in a range of 1-99.9 turns/min, the test position delay time is set in a range of 0-9999.9 seconds, the action protection time is set in a range of 0-999.9 seconds, the torque protection value is set in a range of 1-30NM, and the number of turns protection value is set in a range of 1-999.9 turns. Preferably, the control mode includes: an automatic control mode and a manual control mode. In the automatic operation process, the circuit breaker chassis is firstly positioned at a test position, a shaking-in command reaches a working position after time delay T1, then a shaking-out command reaches the test position again after time delay T2, and the whole process is repeated according to set test times. In the manual control mode, the hand-in and hand-out operations are performed by the click operation. In the embodiment of the invention, the touch screen adopts a Weion TK6100IQ and a 10-inch color touch screen; the touch screen is powered by a 24VDC power supply; the touch screen is linked with the PLC in an RS485 mode, and after the communication port is changed to COM2, the interface type is changed to RS-485 4W. Table 1 shows the connection line relationship between the PLC core control unit and the touch screen.
Table 1 connecting wire relation between PLC core control unit and touch screen
| Touch screen | PLC |
| 9pin female connector | 8pin male connector |
| 1 | 4 |
| 2 | 7 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
The following parameters (power down hold) can be set by the touch screen: life test set times (1-99999 times), test position delay time (0-9999.9 seconds), working position delay time (0-9999.9 seconds), action time protection timing (0-999.9 seconds), moment protection value (1-30 NM), rotation circle protection value (1-999.9 circles) and operation speed (1-99.9 circles/minute).
The following data can be obtained through the touch screen: the set parameters show that the life test is completed, the time is counted by time delay of a test position in the automatic operation process, the time is counted by time delay of a working position in the automatic operation process, the time is counted by time delay of a shaking-in or shaking-out action time, the time is counted by time, the moment value is real-time in the action process, the shaking-in or shaking-out action is started, the number of turns of an output shaft which is rotated is counted, the real-time operation speed is high, and the real-time operation state is high: automatic mode operation: shaking in the process, shaking out the process, delaying for waiting, and running in real time: fault, wherein the fault cues are: moment overrun, rotation circle overrun, action time overrun, servo motor fault, real-time running state: manual mode or standby state.
The following operations can be performed through the touch screen: setting the parameters, a manual mode, a inching motor forward or reverse rotation, a manual mode, a shaking operation, an in-place automatic stop of a working position, a manual mode, a shaking operation, an in-place automatic stop of a test position, an automatic mode, an automatic operation starting, an automatic mode, an automatic operation stopping, a fault resetting, a counter resetting and a debugging mode: and adjusting internal parameters of the servo motor.
Preferably, the PLC core processing unit 102 is connected to the output ends of the switching value input unit and the AD conversion unit, and the input end of the switching value output unit, respectively, and is configured to process the position state digital signal and the input setting of the touch screen, and output a first control command signal; and processing the PLC digital signal. Fig. 6 is a schematic diagram of a PLC core processing unit of a fully automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention. As shown in FIG. 6, in the embodiment of the invention, a PLC core processing unit adopts a Mitsubishi FX3UC-96MT host, 1 FX2N-2AD analog acquisition module is additionally arranged, the PLC is powered by 24VDC, a communication port is connected with a touch screen, high-speed pulses can be output and input, the number of the processing pulses can reach 100KHZ, and the processing time is less than 100ns. The output high-speed pulse is used for controlling the running speed and the running angle of the servo motor; the input high-speed pulse channel is a high-speed pulse signal input by the acquisition encoder and is used for calculating the rotating angle of the motor.
Preferably, the servo controller 103 is connected to the output ends of the switching value output unit and the PLC core processing unit, and the input end of the servo motor, and is configured to control the servo motor according to the switching value output signal output by the switching value output unit and the first control command signal, and send out a second control command signal.
Preferably, the servo motor 104 is configured to convert the second control command signal into an angular displacement or an angular velocity output on a motor shaft, and control a position of a breaker chassis vehicle sample. Fig. 7 is a schematic diagram showing connection among a PLC core processing unit, a servo controller and a servo motor of a full-automatic breaker chassis mechanical life test system according to an embodiment of the present invention. As shown in fig. 7, in the embodiment of the present invention, the servo motor is a table ECMA-E21315RS, the servo controller is a table ASD-B2-1521-B, the servo controller and the servo motor are connected by two cables, namely a motor driving power line and an angle encoder line, respectively, the servo controller is powered by an ac 220V power supply, and the servo controller is connected with the PLC core processing unit by one cable, so as to control the servo system line for the PLC core processing unit. The working principle of the servo system is as follows: the servo controller adopts position control, the angle encoder feeds back the coding number to the servo controller in real time, the PLC core processing unit sends pulse and direction to operate the servo controller, the main power contactor of the servo controller is connected, and the servo controller is enabled to start. The main output loop of the servo controller is electrified, and the servo motor rotates for a set distance according to the pulse number set by the touch screen. The motor walking distance is related to the pulse number given to the servo controller by the PLC core processing unit, the motor walking speed is related to the pulse frequency given to the servo controller by the PLC core processing unit, and the motor rotating speed is faster as the pulse frequency is larger.
Control of the rotation angle by the servo controller: the servo controller can accurately control the rotating angle position of the servo motor, the electronic gear ratio of the servo controller is N/M, wherein N is related to the encoder precision of the motor, and M is related to the number of pulses required to be received by one turn of the motor. The servo controller adopts a position control mode, and the control principle is pulse plus direction type. The angular encoder accuracy is 160000, the relative encoder. The electronic gear ratio is set to be 16:1, and the servo motor rotates one circle when the servo controller receives the pulse number 10000.
Control of the rotational speed by the servo controller: the rotation speed of the servo motor is adjusted according to the pulse frequency sent to the servo controller by the PLC core processing unit. The same pulse number is sent under different frequencies, and the servo motor rotates by the same angle but at different speeds; the faster the frequency of the pulse sent by the PLC core processing unit, the faster the rotation speed of the servo motor. Fig. 8 is a program diagram of the control of the rotational speed by the servo controller according to the embodiment of the present invention. As shown in fig. 8, D400 is the pulse frequency, D300 is the pulse number, Y1 is the pulse output, and the motor direction is controlled by Y000, and the rotation speed=d300×d400×60/10000 cycles/minute, so that the stability of the rotation speed can be maintained by controlling D300 and D400. Fig. 9 is a schematic circuit connection diagram of a servo controller of a full-automatic breaker chassis mechanical life test system according to an embodiment of the present invention. As shown in fig. 9, wiring and port definitions for the various ports of the servo controller.
Preferably, the torque sensor 105 is respectively connected with an output end of the servo motor and an input end of the AD conversion unit, and is configured to collect torque output by the servo motor to a test sample of the circuit breaker chassis, and convert the torque into a torque electrical signal, and output the torque electrical signal to the AD conversion unit.
Preferably, the AD conversion unit 106 is connected to an input end of the PLC core processing unit, and is configured to convert the torque electric signal into a PLC digital signal, and output the PLC digital signal to the PLC core processing unit. In the embodiment of the invention, the torque sensor is a product of the type JN-DN-30NM of the clam port sensor company, the output signal is 4-20mA, the corresponding torsion is 0-200NM, and the resolution is 0.1NM. Fig. 10 is a schematic diagram of the connection of torque sensors of a fully automatic circuit breaker chassis mechanical life test system according to an embodiment of the present invention.
Preferably, the switching value input unit 108 is connected to an input end of the PLC core processing unit, and is configured to convert a position status signal of the circuit breaker chassis vehicle sample into a position status digital signal, and output the position status digital signal to the PLC core processing unit. Wherein the position status signal comprises: the position and the switch state of a circuit breaker chassis vehicle test sample. Because the circuit breaker has a mechanical interlocking relationship, the circuit breaker cannot swing in or out in a closing state, so that a switching state signal of the circuit breaker must be collected. After the rotation of the set turns or angles, whether the chassis of the circuit breaker is in place or not needs to be judged, and the circuit breaker is used for examining the reliability and the matching degree of the auxiliary switch component of the chassis. According to the conventional VS1 circuit breaker, a signal can be directly connected from a 58-pin aviation plug of the circuit breaker. Table 2 is the correspondence between the circuit breaker aviation pin and the PLC core processing unit input point. As shown in table 2, comprising: and the corresponding relation between the aviation contact pin of the circuit breaker and the input point of the PLC core processing unit is corresponding to the three signals of the in-place switching-on, the in-place test position and the in-place working position. The aviation plug connection wire can be a special 58-needle aviation plug connection wire, and the length of the aviation plug connection wire is 3 meters.
Table 2 correspondence between aviation pins of circuit breaker and input points of PLC core processing unit
Preferably, the switching value output unit 107 is configured to obtain a switching value output signal according to a processing result of the PLC core processing unit.
Preferably, wherein the system further comprises: and the judging unit is used for judging whether the circuit breaker chassis vehicle sample reaches a working position or a test position. Preferably, the judging unit is specifically configured to: after executing the shake-in or shake-out command, if at least one of the torque, the rotation number or the action time is greater than a set value, a fault alarm is sent out; and otherwise, the circuit breaker chassis test sample reaches the working position or the test position, and the next command is executed.
When designing, utilize this system to test the chassis car of a product model of ABB for VD4/P-12, set up: output shaft rotational speed: 30 turns/min, torque protection value: 20NM, test position delay time: 80 seconds, working position delay time 80 seconds, motor action protection time: 45 seconds, set number of times: 1000 times.
The test results are: actual rotational coil speed: 20 circles of actual action time: the actual torque is shown in the following table for 40 seconds:
it can be concluded that: the operation is stable and reliable, and the aim of the expected design is achieved.
Fig. 11 is a flow chart of a fully automatic circuit breaker chassis mechanical life test method 1100 in accordance with an embodiment of the present invention. As shown in fig. 11, the full-automatic breaker chassis mechanical life test method 1100 is used for the automatic operation of the breaker chassis mechanical life test, replaces manual operation, improves the working efficiency of test stations and manufacturers, and saves labor cost. In addition, the high-voltage middle-mounted switch cabinet can be applied to various types of high-voltage middle-mounted switch cabinets, and has strong practical performance. The fully automatic circuit breaker chassis mechanical life test method 1100 starts from a step 1101, and test parameters and control modes are set in the step 1101, wherein the test parameters include: test times, action time, period delay time, shaking speed, rotation angle, action protection time, rotation number protection value and moment protection value. Preferably, the test times are set in a range of 1-99999, the operation speed is set in a range of 1-99.9 turns/min, the test position delay time is set in a range of 0-9999.9 seconds, the action protection time is set in a range of 0-999.9 seconds, the torque protection value is set in a range of 1-30NM, and the number of turns protection value is set in a range of 1-999.9 turns. Preferably, the control mode includes: an automatic control mode and a manual control mode.
Preferably, in step 1102, the plc core processing unit acquires a first control command signal according to the position state digital signal and the input of the touch screen.
Preferably, in step 1103, the servo control unit obtains a second control command signal according to the first control command signal and the switching value output signal output by the switching value output unit.
Preferably, in step 1104, the servo motor converts the second control command signal into an angular displacement or angular velocity output on the motor shaft.
Preferably, in step 1105, a torque electrical signal output by the servo motor to a circuit breaker chassis vehicle test is collected and converted into a PLC digital signal.
Preferably, in step 1106, a position status signal of the breaker chassis vehicle test is collected, and the position status signal is converted into a position status digital signal and sent to a PLC core processing unit.
Preferably, in step 1107, it is determined whether the number of tests has reached the set number of tests, if so, it ends, otherwise, it returns to step 1102.
Preferably, wherein the method further comprises:
and judging whether the circuit breaker chassis vehicle sample reaches a working position or a test position.
Preferably, wherein the method comprises:
after executing the shake-in or shake-out command, if at least one of the torque, the rotation number or the action time is greater than a set value, a fault alarm is sent out; and otherwise, the circuit breaker chassis test sample reaches the working position or the test position, and the next command is executed.
The full-automatic breaker chassis mechanical life test system 100 according to the embodiment of the present invention corresponds to a full-automatic breaker chassis mechanical life test method 1100 according to another embodiment of the present invention, and will not be described herein.
The invention has been described with reference to a few embodiments. However, as is well known to those skilled in the art, other embodiments than the above disclosed invention are equally possible within the scope of the invention, as defined by the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise therein. All references to "a/an/the [ means, component, etc. ]" are to be interpreted openly as referring to at least one instance of said means, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
Claims (10)
1. A full-automatic breaker chassis mechanical life test system, the system comprising: the touch screen, the PLC core processing unit, the servo controller, the servo motor, the torque sensor, the AD conversion unit, the switching value input unit and the switching value output unit,
the touch screen is connected with the PLC core processing unit and used as an input end for setting test parameters and control modes;
the PLC core processing unit is respectively connected with the output ends of the switching value input unit and the AD conversion unit and the input end of the switching value output unit and is used for processing the position state digital signal and the input setting of the touch screen and outputting a first control command signal; processing the PLC digital signal;
the servo controller is respectively connected with the output ends of the switching value output unit and the PLC core processing unit and the input end of the servo motor, and is used for controlling the servo motor according to the switching value output signal output by the switching value output unit and the first control command signal and sending out a second control command signal;
the servo motor is used for converting the second control command signal into angular displacement or angular speed output on a motor shaft and controlling the position of a circuit breaker chassis vehicle sample;
the torque sensor is respectively connected with the output end of the servo motor and the input end of the AD conversion unit, and is used for collecting the torque output by the servo motor to a circuit breaker chassis vehicle sample, converting the torque into a torque electric signal and outputting the torque electric signal to the AD conversion unit;
the AD conversion unit is connected with the input end of the PLC core processing unit and is used for converting the torque electric signal into a PLC digital signal and outputting the PLC digital signal to the PLC core processing unit;
the switching value input unit is connected with the input end of the PLC core processing unit and is used for converting the position state signal of the circuit breaker chassis vehicle sample into a position state digital signal and outputting the position state digital signal to the PLC core processing unit;
the switching value output unit is used for acquiring a switching value output signal of the switching value output signal according to the processing result of the PLC core processing unit;
wherein the system further comprises: a detachable circuit breaker chassis vehicle test article connecting shaft sleeve device and a bracket unit,
the detachable circuit breaker chassis car sample connecting shaft sleeve device includes: the device comprises an elastic coupling, a bearing group, an output shaft sleeve, an extension rod and a connecting shaft sleeve, wherein all the components are sequentially and mechanically connected, the elastic coupling is connected with a torque sensor, the connecting shaft sleeve is connected with a circuit breaker chassis car sample, and the connecting shaft sleeve device can adapt to circuit breaker chassis car connecting interfaces of different types;
the support unit is of a three-layer four-column support structure, the top layer and the bottom layer are flat plates, the bottom layer flat plates are provided with universal wheels, the middle layer is an automatic lifting operation table, the operation table is lifted through a platform lifting mechanism, and the platform lifting mechanism is screw rod combined speed reducing mechanism equipment;
the touch screen, the PLC core processing unit, the servo controller, the servo motor, the torque sensor unit, the switching value input unit, the switching value output unit, the time management control unit and the storage unit are positioned in the middle layer operation table of the bracket unit;
wherein the test parameters include: test times, action time, period delay time, shaking speed, rotation angle, action protection time, rotation number protection value and moment protection value.
2. The system of claim 1, wherein the number of trials is set in the range of 1-99999, the operating speed is set in the range of 1-99.9 turns/minute, the trial position delay time is set in the range of 0-9999.9 seconds, the actuation protection time is set in the range of 0-999.9 seconds, the torque protection value is set in the range of 1-30NM, and the number of turns protection value is set in the range of 1-999.9 turns.
3. The system of claim 1, wherein the system further comprises: and the judging unit is used for judging whether the circuit breaker chassis vehicle sample reaches a working position or a test position.
4. A system according to claim 3, wherein the judging unit is specifically configured to: after executing the shake-in or shake-out command, if at least one of the torque, the rotation number or the action time is greater than a set value, a fault alarm is sent out; and otherwise, the circuit breaker chassis test sample reaches the working position or the test position, and the next command is executed.
5. The system of claim 1, wherein the control means comprises: an automatic control mode and a manual control mode.
6. A full-automatic circuit breaker chassis mechanical life test method based on the full-automatic circuit breaker chassis mechanical life test system of any one of claims 1-5, the method comprising:
step 1, setting test parameters and control modes, wherein the test parameters comprise: test times, action time, period delay time, shaking speed, rotation angle, action protection time, rotation number protection value and moment protection value;
step 2, the PLC core processing unit acquires a first control command signal according to the position state digital signal and the input of the touch screen;
step 3, the servo control unit obtains a second control command signal according to the first control command signal and the switching value output signal output by the switching value output unit;
step 4, the servo motor converts the second control command signal into angular displacement or angular speed output on the motor shaft;
step 5, acquiring a torque electric signal output by the servo motor to a circuit breaker chassis vehicle sample, and converting the torque electric signal into a PLC digital signal;
step 6, collecting a position state signal of the circuit breaker chassis vehicle sample, converting the position state signal into a position state digital signal and sending the position state digital signal to a PLC core processing unit;
and 7, judging whether the test times reach the set test times, if so, ending, otherwise, returning to the step 2.
7. The method according to claim 6, wherein the number of trials is set in a range of 1-99999, the operation speed is set in a range of 1-99.9 turns/minute, the trial position delay time is set in a range of 0-9999.9 seconds, the actuation protection time is set in a range of 0-999.9 seconds, the torque protection value is set in a range of 1-30NM, and the number of turns protection value is set in a range of 1-999.9 turns.
8. The method of claim 6, wherein the method further comprises:
and judging whether the circuit breaker chassis vehicle sample reaches a working position or a test position.
9. The method according to claim 8, characterized in that the method comprises:
after executing the shake-in or shake-out command, if at least one of the torque, the rotation number or the action time is greater than a set value, a fault alarm is sent out; and otherwise, the circuit breaker chassis test sample reaches the working position or the test position, and the next command is executed.
10. The method of claim 6, wherein the controlling means comprises: an automatic control mode and a manual control mode.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108444693A (en) * | 2018-06-14 | 2018-08-24 | 福建中网电气有限公司 | A kind of detection device and method of switch element mated condition |
| CN109471024B (en) * | 2018-09-28 | 2020-09-22 | 河南长征电气有限公司 | Circuit breaker chassis wiring detector and using method thereof |
| CN110455522B (en) * | 2019-09-19 | 2021-03-26 | 上海海事大学 | Random test method for vehicle door endurance test bed based on servo electric cylinder |
| CN115267392B (en) * | 2022-07-28 | 2023-05-26 | 淄博市产品质量检验研究院 | Device and method for detecting operation characteristics of electrical equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1904577A (en) * | 2006-08-10 | 2007-01-31 | 天津大学 | Automatic test device and method of aviation circuit breaker fatigue life |
| CN201877307U (en) * | 2010-10-08 | 2011-06-22 | 河南森源电气股份有限公司 | Mechanism for automatically switching operating and test positions of circuit breaker |
| CN102565693A (en) * | 2011-12-30 | 2012-07-11 | 上海电器科学研究所（集团）有限公司 | Mechanical and electrical service life testing system |
| WO2013143415A1 (en) * | 2012-03-28 | 2013-10-03 | 伊顿电气有限公司 | Electric chassis vehicle for circuit breaker |
| CN203562984U (en) * | 2013-11-18 | 2014-04-23 | 沈阳工业大学 | Control device for coil excitation DC motor mechanism of high-voltage breaker |
| CN104577850A (en) * | 2014-12-25 | 2015-04-29 | 温州兴机电器有限公司 | Breaker chassis provided with position indication device |
-
2017
- 2017-05-31 CN CN201710401415.3A patent/CN107037357B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1904577A (en) * | 2006-08-10 | 2007-01-31 | 天津大学 | Automatic test device and method of aviation circuit breaker fatigue life |
| CN201877307U (en) * | 2010-10-08 | 2011-06-22 | 河南森源电气股份有限公司 | Mechanism for automatically switching operating and test positions of circuit breaker |
| CN102565693A (en) * | 2011-12-30 | 2012-07-11 | 上海电器科学研究所（集团）有限公司 | Mechanical and electrical service life testing system |
| WO2013143415A1 (en) * | 2012-03-28 | 2013-10-03 | 伊顿电气有限公司 | Electric chassis vehicle for circuit breaker |
| CN203562984U (en) * | 2013-11-18 | 2014-04-23 | 沈阳工业大学 | Control device for coil excitation DC motor mechanism of high-voltage breaker |
| CN104577850A (en) * | 2014-12-25 | 2015-04-29 | 温州兴机电器有限公司 | Breaker chassis provided with position indication device |
Non-Patent Citations (2)
| Title |
|---|
| 中低压开关设备电动操作进出车机构设计;谢玉琥;;机械研究与应用(04);全文 * |
| 断路器疲劳自动试验装置设计;李文婷;曲兴华;周松;张福民;叶声华;;制造业自动化(01);全文 * |
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