CN107063676A - Brake switch durability test apparatus - Google Patents

Brake switch durability test apparatus Download PDF

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Publication number
CN107063676A
CN107063676A CN201710497918.5A CN201710497918A CN107063676A CN 107063676 A CN107063676 A CN 107063676A CN 201710497918 A CN201710497918 A CN 201710497918A CN 107063676 A CN107063676 A CN 107063676A
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CN
China
Prior art keywords
brake switch
programmable controller
test apparatus
durability test
electromagnet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710497918.5A
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Chinese (zh)
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CN107063676B (en
Inventor
龚政
丁宁
吴栋华
王道永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Jincheng Machinery Co Ltd
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Nanjing Jincheng Machinery Co Ltd
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Priority to CN201710497918.5A priority Critical patent/CN107063676B/en
Publication of CN107063676A publication Critical patent/CN107063676A/en
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Publication of CN107063676B publication Critical patent/CN107063676B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The invention discloses a kind of brake switch durability test apparatus, the brake switch tested including housing and in housing, the executing agency for controlling brake switch break-make, for detect brake switch whether normal work testing agency and programmable controller, the programmable controller is connected with executing agency and testing agency respectively;The executing agency includes being located at the electromagnet above brake switch and performs bar, and the lower end of the execution bar is pressed together on brake switch, and electromagnet can drive execution bar to move disengaging brake switch upwards.The present invention is controlled the break-make of brake switch using high-speed double electromagnet, optimizes the action simulation effect of brake switch, reduction and the otherness of actual conditions.

Description

Brake switch durability test apparatus
Technical field
The present invention relates to switch reliability detecting device, more particularly to a kind of brake switch durability test apparatus.
Background technology
It would therefore be highly desirable to solve the above problems.
The content of the invention
Goal of the invention:It is an object of the invention to provide a kind of brake switch that action simulation effect is good and intelligence degree is high Durability test apparatus.
Technical scheme:To realize object above, the invention discloses a kind of brake switch durability test apparatus, including subject The brake switch tested, the executing agency for controlling brake switch break-make, for detect brake switch whether the inspection of normal work Mechanism and programmable controller are surveyed, the programmable controller is connected with executing agency and testing agency respectively;The execution machine Structure includes being located at the electromagnet above brake switch and performs bar, and the lower end of the execution bar is pressed together on brake switch, electromagnet Execution bar can be driven to move disengaging brake switch upwards.
Wherein described testing agency includes the photoisolator for being used to detect brake switch loop current value, the Phototube Coupling Device transmits the loop current value of detection to programmable controller, when the loop open circuit or current value of detection are less than setting value, Programmable controller is output brake switch failure signal.
Further, the brake switch is connected to form load circuit with tunable load power supply and tunable load resistance.
It is preferred that, the electromagnet is frame-type electromagnet, and the frame-type electromagnet includes fixed core, coil and dynamic iron Core, the dynamic iron core is fixedly connected with bar is performed, and its coil obtains electric generation magnetic, fixed core absorption dynamic iron core drive perform bar to Upper motion departs from brake switch.
Furthermore, solid-state relay is connected with the programmable controller, programmable controller sends electric signal via solid State relay driving electromagnet, electromagnet obtains electric drive execution bar and moves disengaging brake switch upwards.
It is preferred that, it is also associated with working power on the electromagnet.
Wherein, it is also associated with starting switch on the programmable controller.
It is preferred that, it is also associated with reset switch on the programmable controller.
Furthermore, the indicator lamp and/or buzzer for showing fault-signal are also associated with the programmable controller.
It is preferred that, the programmable controller is PLC, and the PLC is mitsubishi FX2N -16MR/001.
Beneficial effect:Compared with prior art, the present invention has following remarkable advantage:The present invention is real using electromagnet first Now the break-make to brake switch is controlled, and optimizes the action simulation effect of brake switch, reduction and the otherness of actual conditions;Secondly The simulated test of the different types of brake switch of different loads is realized by tunable load resistance and tunable load power supply, enhancing should The applicability of experimental rig;Finally the experimental rig realizes test process Unmanned operation by PLC, automatic counting, failure report The functions such as alert and shutdown.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is circuit theory diagrams of the invention;
Fig. 3 is the structural representation of electromagnet in the present invention.
Embodiment
Technical scheme is described further below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of brake switch durability test apparatus of the invention, including housing 1, brake switch 2, hold Row mechanism, testing agency and programmable controller 3, the programmable controller 3 are connected with executing agency and testing agency respectively.
The brake switch tested is fixed in housing 1 by mounting bracket 15.Executing agency is to be used to control braking to open Break-make is closed, the executing agency includes being located at the electromagnet 4 of the top of brake switch 2 and performs bar 5, the lower side pressure of the execution bar 5 Close on brake switch 2, electromagnet 4 can drive execution bar 5, and motion departs from brake switch 2 upwards.As shown in figure 3, above-mentioned electromagnetism Iron 4 is frame-type electromagnet, and the frame-type electromagnet includes fixed core 401, coil 402 and dynamic iron core 403, the dynamic iron core 403 With perform bar 5 be fixedly connected, its coil 402 electric generation magnetic, fixed core 401 absorption dynamic iron core 403 drive perform bar 5 to Upper motion departs from brake switch 2, and now brake switch is acted;After 402 dead electricity of coil, dynamic iron core 403 and execution bar 5 are at itself Reset state is moved downwardly under Action of Gravity Field, that is, is pressed together on brake switch 2, brake switch is failure to actuate.Programmable controller 3 On be connected with solid-state relay 9, programmable controller 3 sends electric signal via the DM 4 of solid-state relay 9, electromagnet 4 On be also associated with working power 10;Working power 10 and programmable controller 3 are connected by power line 16 with civil power;Electromagnet 4 coils 402 obtain electric.
Above-mentioned testing agency be for detect brake switch whether normal work, the testing agency include be used for detect system The photoisolator 6 of dynamic switching circuitry current value, the photoisolator 6 transmits the loop current value of detection to PLC technology Device 3, when the loop open circuit or current value of detection are less than setting value, programmable controller 3 exports brake switch and broken down Signal.The indicator lamp 13 and/or buzzer 14 for showing fault-signal are also associated with the programmable controller, can be according to not Select to show the concrete mode of fault-signal with demand.
The brake switch 2 of the present invention is connected to form load circuit with tunable load power supply 7 and tunable load resistance 8, loads The current setting value in loop depends on tunable load power supply 7 and tunable load resistance 8, and tunable load power supply 7 passes through power line 16 It is connected with civil power.The present invention realizes that the different types of braking of different loads is opened by tunable load resistance and tunable load power supply The simulated test of pass, strengthens the applicability of the experimental rig.
The programmable controller 3 that the present invention is used is PLC, the PLC is mitsubishi FX2N -16MR/001.The PLC technology Starting switch 11 and reset switch 12 are also associated with device 3.
The course of work of the present invention:Brake switch 2 is first installed in mounting bracket 15 when experimental rig works, to programmable Controller 3 carries out parameter setting.Start experiment by starting switch 11, programmable controller 3 sends electric signal through solid-state relay 9 Make 24V voltage outputs to the coil 402 of electromagnet 4, coil 402 obtains electric generation magnetic, the absorption band of dynamic iron core 403 of fixed core 401 Dynamic to perform the motion disengaging brake switch 2 upwards of bar 5, now brake switch is acted.Programmable controller 3 carries out brake switch simultaneously Whether normal detection work is connected, and when testing result is connected state, brake switch 2 is working properly, through photoisolator 6 When detecting the loop open circuit of brake switch 2 or electric current less than setting value (different test switches is directed to, passes through tunable load power supply 7 and the setting electric current threshold values of tunable load resistance 8), be determined as that brake switch 2 breaks down, continuous several times break down when judge The endurancing of brake switch 2 terminates, and programmable controller 3 automatically controls experiment and terminated, while programmable controller 3 is sent Signal is alarmed to indicator lamp 13 and buzzer 14, points out brake switch 2 to break down, and experiment stops.As brake switch 2 works Normally, after a period of time, electromagnet 4 is powered off after such as 5s connection, dynamic iron core 403 and execution bar 5 are under self gravitation effect Reset state is moved downwardly to, that is, is pressed together on brake switch 2, brake switch is failure to actuate.Interval a period of time, such as 1s after reset Posterior circle carries out durability retardation test.
Pass through the following parameter setting of carry out of programmable controller 3:
(1) when the time of long-press reset switch 12 is 2 seconds in process of the test, experiment is stopped, at this moment PLC technology The internal count value of device 3 is constant, then continues by the experiment work of starting switch 11.
(2) in process of the test, the continuous time of short-press reset switch 12 is less than 0.5 second 3 times, can be to external fault (subject Test switch contact bad, tunable load Resistance Fault, electromagnet failure, solid-state relay failure etc.) caused by buzzing alarm, enter Reset after row troubleshooting inspection.
(3) in "on" position;The continuous time of short-press reset switch 12 is less than 0.5 second 5 times;Available for (by experiment braking The initial count clearing of switch, misoperation is reset, and is changed and is reset after brake switch) counting of Inner portions is removed, experiment is started from scratch.

Claims (10)

1. a kind of brake switch durability test apparatus, it is characterised in that:Subject including housing (1) and in housing (1) The brake switch (2) tested, the executing agency for controlling brake switch break-make, for detect brake switch whether normal work Testing agency and programmable controller (3), the programmable controller (3) are connected with executing agency and testing agency respectively;Institute Stating executing agency includes being located at the electromagnet (4) above brake switch and performs bar (5), and the lower end of the execution bar (5) is pressed together on On brake switch (2), electromagnet (4) can drive execution bar (5), and motion departs from brake switch (2) upwards.
2. brake switch durability test apparatus according to claim 1, it is characterised in that:The testing agency includes being used for Detect brake switch loop current value photoisolator (6), the photoisolator (6) by the loop current value of detection transmit to Programmable controller (3), when the loop open circuit or current value of detection are less than setting value, programmable controller (3) is output system Dynamic switch failure signal.
3. brake switch durability test apparatus according to claim 2, it is characterised in that:The brake switch (2) with can Load power source (7) and tunable load resistance (8) is adjusted to be connected to form load circuit.
4. brake switch durability test apparatus according to claim 1, it is characterised in that:The electromagnet (4) is framework Formula electromagnet, the frame-type electromagnet include fixed core (401), coil (402) and dynamic iron core (403), the dynamic iron core (403) and Perform bar (5) to be fixedly connected, its coil (402) obtains electric generation magnetic, fixed core (401) absorption dynamic iron core (403) drives and held Motion departs from brake switch (2) to row bar (5) upwards.
5. brake switch durability test apparatus according to claim 1, it is characterised in that:The programmable controller (3) On be connected with solid-state relay (9), programmable controller (3) sends electric signal via solid-state relay (9) DM (4), electromagnet (4) obtains electric drive and performs bar (5) motion disengaging brake switch (2) upwards.
6. brake switch durability test apparatus according to claim 1, it is characterised in that:Also connect on the electromagnet (4) It is connected to working power (10).
7. brake switch durability test apparatus according to claim 1, it is characterised in that:The programmable controller (3) On be also associated with starting switch (11).
8. brake switch durability test apparatus according to claim 1, it is characterised in that:The programmable controller (3) On be also associated with reset switch (12).
9. brake switch durability test apparatus according to claim 1, it is characterised in that:On the programmable controller also It is connected with the indicator lamp (13) and/or buzzer (14) for showing fault-signal.
10. brake switch durability test apparatus according to claim 1, it is characterised in that:The programmable controller (3) For PLC, the PLC is mitsubishi FX2N -16MR/001.
CN201710497918.5A 2017-06-27 2017-06-27 Brake switch endurance test device Active CN107063676B (en)

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Application Number Priority Date Filing Date Title
CN201710497918.5A CN107063676B (en) 2017-06-27 2017-06-27 Brake switch endurance test device

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Application Number Priority Date Filing Date Title
CN201710497918.5A CN107063676B (en) 2017-06-27 2017-06-27 Brake switch endurance test device

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CN107063676A true CN107063676A (en) 2017-08-18
CN107063676B CN107063676B (en) 2024-02-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108487741A (en) * 2018-03-29 2018-09-04 重庆复融科技有限公司 The stereo garage of travel switch and application the trip switch
CN108556653A (en) * 2018-03-29 2018-09-21 重庆复融科技有限公司 Contact intelligent charging system for Mechanical parking system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2893691Y (en) * 2005-12-23 2007-04-25 德信润通通讯科技(北京)有限公司 Analog keying fatigue testing machine
CN201266159Y (en) * 2008-08-26 2009-07-01 比亚迪股份有限公司 Test equipment for push button durability
CN101660977A (en) * 2008-12-30 2010-03-03 深圳市海洋王照明科技股份有限公司 Ship-shaped switch fatigue test device
CN102353895A (en) * 2011-06-08 2012-02-15 河北工业大学 Low voltage breaker life automatic test apparatus
CN203012097U (en) * 2012-11-16 2013-06-19 湖南吉利汽车部件有限公司 Button endurance testing device
CN203929383U (en) * 2014-07-15 2014-11-05 厦门出入境检验检疫局检验检疫技术中心 A kind of treadmill emergency stop switch fatigue testing equipment
CN206974674U (en) * 2017-06-27 2018-02-06 南京金城机械有限公司 Brake switch durability test apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2893691Y (en) * 2005-12-23 2007-04-25 德信润通通讯科技(北京)有限公司 Analog keying fatigue testing machine
CN201266159Y (en) * 2008-08-26 2009-07-01 比亚迪股份有限公司 Test equipment for push button durability
CN101660977A (en) * 2008-12-30 2010-03-03 深圳市海洋王照明科技股份有限公司 Ship-shaped switch fatigue test device
CN102353895A (en) * 2011-06-08 2012-02-15 河北工业大学 Low voltage breaker life automatic test apparatus
CN203012097U (en) * 2012-11-16 2013-06-19 湖南吉利汽车部件有限公司 Button endurance testing device
CN203929383U (en) * 2014-07-15 2014-11-05 厦门出入境检验检疫局检验检疫技术中心 A kind of treadmill emergency stop switch fatigue testing equipment
CN206974674U (en) * 2017-06-27 2018-02-06 南京金城机械有限公司 Brake switch durability test apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108487741A (en) * 2018-03-29 2018-09-04 重庆复融科技有限公司 The stereo garage of travel switch and application the trip switch
CN108556653A (en) * 2018-03-29 2018-09-21 重庆复融科技有限公司 Contact intelligent charging system for Mechanical parking system

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