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CN-121978520-A - Contact adhesion test method for elevator star-sealing contactor

CN121978520ACN 121978520 ACN121978520 ACN 121978520ACN-121978520-A

Abstract

The invention discloses a contact adhesion test method of an elevator star sealing contactor, which comprises a display system, a control system, a driving system and an execution system, wherein the control system comprises a solid state relay, the display system comprises a switch, the test method comprises the following steps of S1, adopting a variable voltage regulator to supply power to the system, regulating voltage to a voltage value matched with the load requirement of the tested elevator star sealing contactor, S2, outputting a solid state signal through the control system, controlling the solid state relay to work in a random voltage switching SCR output mode, utilizing the high-speed response low-delay characteristic of the solid state relay, shortening the link transmission time and controlling the action of the tested star sealing contactor at a high frequency, collecting the feedback signal of the solid state relay, acquiring the delay time of the control system of the system through the built-in algorithm operation of the control system, and further accurately calculating the contact feedback time of the star sealing contactor. The invention has transparent test process, clear data, real-time monitoring and real-time judgment of results.

Inventors

  • REN LIGANG
  • WANG YONGQING
  • ZHAO ZHENGYU

Assignees

  • 江苏省特种设备安全监督检验研究院

Dates

Publication Date
20260505
Application Date
20260309

Claims (10)

  1. 1. The contact adhesion test method of the elevator star-sealing contactor is characterized by comprising a display system, a control system, a driving system and an execution system, wherein the control system comprises a solid-state relay, and the display system comprises a switch; The test method comprises the following steps: s1, a variable voltage regulator is adopted to supply power to a system, and the voltage is regulated to a voltage value matched with the load requirement of a tested elevator star-sealing contactor; S2, outputting a solid state signal through a control system, controlling the solid state relay to work in a random voltage switching SCR output mode, and controlling the action of the star sealing contactor to be tested at high frequency by utilizing the high-speed response low-delay characteristic of the solid state relay; s3, collecting action parameters of the contact of the star-sealed contactor to be tested in each test, wherein the action parameters comprise contact time from opening to closing and contact time from closing to opening of the contact, comparing the collected detection data each time, and judging a contact adhesion result through a preset program algorithm; And S4, realizing data interaction between the display system and the control system through the switch, displaying test data, a real-time trend chart and a contact adhesion judgment result in real time through the display system, and supporting remote monitoring of the test state and the accumulated test times of the tested contactor.
  2. 2. The method for testing contact adhesion of an elevator star-sealed contactor according to claim 1, wherein the control system adopts MOSFET solid-state output, the working voltage range is 20.4-28.8VDC, the longest delay from on to off is 3.0 mu s, and the longest delay from off to on is 1.0 mu s.
  3. 3. The method for testing contact adhesion of the star-sealed contactor of the elevator, which is disclosed in claim 1, is characterized in that the input voltage range of the solid state relay is 4-32VDC, the output voltage range of the solid state relay is 48-600VAC, and the response time is 0.1ms when the solid state relay is turned on and 0.5 turn when the solid state relay is turned off.
  4. 4. The method for testing contact adhesion of an elevator star-sealed contactor according to claim 1, wherein the step S2 is characterized in that a control system program takes feedback time of each detected star-sealed contactor action as feedback input of the system, and control parameters of the control system on the detected star-sealed contactor are dynamically adjusted.
  5. 5. The method for testing adhesion of contacts of an elevator star-sealed contactor according to claim 1, wherein the action parameters collected in the step S3 further comprise respective corresponding action time of a main contact, a star-sealed contact and an auxiliary contact of the star-sealed contactor to be tested, fault time thresholds of different contacts are recorded respectively, and when the action time of the contacts exceeds the corresponding fault time threshold, abnormal risks of the contacts are judged.
  6. 6. The method for testing adhesion of contacts of an elevator star-sealed contactor according to claim 1, wherein the display system is used for displaying test data of a plurality of detected star-sealed contactors, including action time, fault time, accumulated test times and real-time running state of each contact of each detected contactor, and supporting generation of trend curves of parameters of each monitoring channel.
  7. 7. The method for testing contact adhesion of an elevator star-sealed contactor according to claim 1, wherein the electrical loop of the testing system comprises a power input loop, a contactor detection point input loop and a contactor control coil output loop, overload protection is achieved by the power input loop through a circuit breaker, the contactor detection point input loop is simultaneously connected with detection signals of at least 2 contactors to be tested, and the contactor control coil output loop is directly controlled by the control system to output signals.
  8. 8. The method for testing contact adhesion of an elevator star sealing contactor according to claim 1, wherein the step S4 is characterized in that the step S4 is performed by remotely monitoring and acquiring state information of at least 5 star sealing contactors to be tested in real time, wherein the state information comprises whether equipment is in a starting state, whether a remote control mode is adopted or not, and the accumulated test times of all the equipment, and the method supports generation of test reports.
  9. 9. The method for testing the contact adhesion of the elevator star-sealed contactor is characterized in that the trend curve is used for visually presenting the change rule of the contact action time along with a test period and is convenient for capturing abnormal change inflection points, and the test report supports local storage and remote export and is used for testing data tracing and compliance checking.
  10. 10. The method for testing the contact adhesion of the star sealing contactor of the elevator, which is disclosed in claim 1, is characterized in that the detection signals of at least 2 tested contactors connected to a detection point input loop of the contactor support parallel testing of a plurality of tested star sealing contactors.

Description

Contact adhesion test method for elevator star-sealing contactor Technical Field The invention relates to the technical field of elevator star-sealing contactor test, in particular to a method for testing contact adhesion of an elevator star-sealing contactor. Background The current testing method for the contact adhesion of the star-sealed contactor for the elevator is also based on the GB/T14048.4 contactor testing method, and the working state of the contact is checked after the action times are regulated according to the working system requirements. The defects of the prior art are that variables in the process cannot be checked, the process of product quality change cannot be recorded accurately, and the contact time change from opening to closing or from closing to opening of each contact can not be recorded, so that real-time detection, judgment and analysis cannot be performed according to the process variables, a real-time trend graph cannot be checked, and an inflection point of abnormal change cannot be found. Disclosure of Invention The invention aims to provide a contact adhesion test method for an elevator star-sealing contactor, which solves the problems that in the prior art, variables in the process cannot be checked, the process of product quality change cannot be recorded accurately, and the contact time change from opening to closing or from closing to opening of each contact cannot be recorded, so that real-time detection, judgment and analysis cannot be performed according to the process variables, a real-time trend graph cannot be checked, and an inflection point of abnormal change cannot be found. In order to achieve the aim, the invention provides the technical scheme that the contact adhesion test method of the elevator star-sealing contactor comprises a display system, a control system, a driving system and an execution system, wherein the control system comprises a solid-state relay, and the display system comprises a switch; The control system adopts the characteristic of low delay of high-speed response of the solid state relay, so that the link transmission time is shortened, the action of the star sealing contactor is controlled by high frequency, meanwhile, the delay time of the control system of the system can be acquired through the operation of a controller algorithm by collecting the feedback of the solid state relay, and the contact feedback time of the star sealing contactor is calculated more accurately. The display system adopts a Siemens display, the data display and control functions are carried out through the switch, the control system adopts a Siemens control system, the solid state output, the opening time and the closing time are controllable, the solid state relay selects the random voltage to switch the SCR output, and in order to better shorten the feedback time, the feedback time of each action is used as the feedback input of the system through the programming of the control system, so that the measured object is controlled more accurately. The test method comprises the following steps: s1, a variable voltage regulator is adopted to supply power to a system, and the voltage is regulated to a voltage value matched with the load requirement of a tested elevator star-sealing contactor; s2, outputting a solid state signal through a control system, controlling the solid state relay to work in a random voltage switching SCR output mode, shortening the link transmission time and controlling the action of the star sealing contactor to be tested at high frequency by utilizing the high-speed response low-delay characteristic of the solid state relay, collecting the feedback signal of the solid state relay, and acquiring the delay time of the control system of the system by the built-in algorithm operation of the control system so as to accurately calculate the contact feedback time of the star sealing contactor; s3, collecting action parameters of the contact of the star-sealed contactor to be tested in each test, wherein the action parameters comprise contact time from opening to closing and contact time from closing to opening of the contact, comparing the collected detection data each time, and judging a contact adhesion result through a preset program algorithm; And S4, realizing data interaction between the display system and the control system through the switch, displaying test data, a real-time trend chart and a contact adhesion judgment result in real time through the display system, and supporting remote monitoring of the test state and the accumulated test times of the tested contactor. Preferably, the control system employs a MOSFET solid state output with an operating voltage range of 20.4-28.8VDC, a maximum on-to-off delay of 3.0 mus and a maximum off-to-on delay of 1.0 mus. Preferably, the input voltage range of the solid state relay is 4-32VDC, the output voltage range of the solid state relay is 48-600VAC, and the response time is 0.1ms when the so