CN210005643U - detecting device for reliability of quick-acting switch - Google Patents
detecting device for reliability of quick-acting switch Download PDFInfo
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- CN210005643U CN210005643U CN201920468984.4U CN201920468984U CN210005643U CN 210005643 U CN210005643 U CN 210005643U CN 201920468984 U CN201920468984 U CN 201920468984U CN 210005643 U CN210005643 U CN 210005643U
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- quick
- reliability
- acting switch
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- switch
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Abstract
The utility model discloses an detection device for quick-action switch reliability, including control section and test section, the control section includes time relay, contactor and the auxiliary relay who connects in order, quick-action switch connects on the contact of auxiliary relay, the test section is including series connection's current-limiting resistor R1 and divider resistance R2, be connected with the counter on the divider resistance R2, current-limiting resistor R1 and divider resistance R2 arrange the normally open end and the normally closed end at quick-action switch, control section and test section are supplied power by DC power supply respectively, connect the counter respectively at the normally open end and the normally closed end of quick-action switch, after continuous closure/disconnection, can know quick-action switch's reliability through the contrast to numerical value on the counter.
Description
Technical Field
The utility model belongs to the technical field of the quick-action switch detection equipment, it is specific detection device who is used for quick-action switch reliability.
Background
The quick-acting switch is an indispensable key part for various signal feedback and signal control of the locomotive, is suitable for a low-voltage electrical appliance control loop and an auxiliary loop, is widely applied to the fields of locomotives, high-speed rails, subways, shields and the like, and the stability and reliability of the quality of the quick-acting switch directly influence the performance of a product and the accuracy of signal transmission, so that the reliability of the quick-acting switch is very critical to detection.
generally, the detection of the reliability of the quick-acting switch is performed by entrusting a qualified detection mechanism, the detection period is long, the test cost is as high as ten-thousand yuan, and the detection is hard to bear by normal test enterprises for products, but daily detection is not performed, and the quality of the products is judged to meet the requirements only by experience.
There is a great need for devices that can facilitate the detection of the reliability of snap switches.
Disclosure of Invention
The utility model provides a detection device for quick-action switch reliability realizes the closure/disconnection many times to the quick-action switch through control section, records the quick-action switch number of times through the testing section.
In order to achieve the purpose, the utility model provides an detection device for quick-action switch reliability, including control part and detection part, the control part includes time relay, contactor and the auxiliary relay who connects in order, quick-action switch connects on the contact of auxiliary relay, the detection part includes current limiting resistor R1 and divider resistance R2 of establishing ties, be connected with the counter on the divider resistance R2, current limiting resistor R1 and divider resistance R2 arrange at the normal open end and the normal close end of quick-action switch, control part and detection part are supplied power by DC power supply respectively.
, the time relay controls the on-off of the intermediate relay through the contactor, and the on/off time of the time relay is 3s/3 s.
, the intermediate relay controls the on or off of the quick-acting switches, and the number of the quick-acting switches on the intermediate relay is 1-5.
, the counter is a direct current voltage input type counter, the input voltage is DC 4-30V, and the counting speed range of the counter is 5-10 times/s.
The beneficial effects of the utility model reside in that:
the counter is connected with the normally open end and the normally closed end of the quick-acting switch respectively, after continuous closing/disconnection, the reliability of the quick-acting switch can be known through comparison of numerical values on the counter, the reliability of the quick-acting switch under different conditions can be conveniently researched and detected through the device, and the use condition of the quick-acting switch is determined.
Drawings
FIG. 1 is a schematic diagram of a detection part of the detection device of the present invention;
FIG. 2 is a block diagram of the control part of the detecting device of the present invention;
FIG. 3 is a front view of an intermediate relay connected to a quick-acting switch in the detecting device of the present invention;
fig. 4 is a left view of the intermediate relay connected with the quick-acting switch in the detection device of the present invention.
In the figure: 1. intermediate relay, 2. quick-acting switch.
Detailed Description
The following examples are presented to illustrate the present invention but are not intended to limit the scope of the invention, as the invention is described in further detail at .
In the embodiment, as shown in fig. 1-3, detection devices for the reliability of the quick-acting switch comprise a control part and a detection part, wherein the control part drives the on/off of a detected quick-acting switch 2 and comprises a time relay, a contactor and an intermediate relay 1 which are connected in sequence, the quick-acting switch 2 is connected to a contact of the intermediate relay 1, the detection part records the on/off times of the detected quick-acting switch 2 and comprises a current limiting resistor R1 and a voltage dividing resistor R2 which are connected in series, a counter is connected to the voltage dividing resistor R2, the current limiting resistor R1 and the voltage dividing resistor R2 are arranged at the normally closed end and the normally closed end of the quick-acting switch, and the control part and the detection part are respectively powered by a direct current power supply.
In this example, the control portion is powered by a DC110V/10A DC power source, and the sensing portion is powered by an adjustable DC power source.
The time relay controls the on-off of the intermediate relay 1 through the contactor, and the on/off time of the time relay is 3s/3s, so that the speed-measured movable switch 2 installed on the intermediate relay 1 can be completely switched on and off.
The intermediate relay 1 controls the on/off of the speed-measuring movable switches 2, the number of the speed-measuring movable switches 2 mounted on the intermediate relay 1 is 1-5, and 5 speed-measuring movable switches are mounted in the example to improve the detection efficiency.
In the embodiment, the counter is a direct-current voltage input type counter, the input voltage is DC 4-30V, the counting speed range of the counter is 5-10 times/s, the counting of the counter is increased by 1 every time the speed-measured movable switch 2 is switched on times, the counting of the counter is easy to miss, and the bounce of the speed-measured movable switch 2 is mistakenly counted into a reading when the speed is too high, so that the reliability judgment is influenced.
The current-limiting resistor R1 and the divider resistor R2 are selected according to test requirements, so that the current of the circuit is ensured to meet the detection requirements, and meanwhile, the voltages at two ends of the divider resistor R2 meet the requirement of the voltage DC 4-30V of the counter.
The detection voltage and the detection current of the detected quick-acting switch 2 can be conveniently adjusted according to the detection requirement, the voltage of a detection power supply is the detected voltage of the quick-acting switch 2, and the detection current is I/(R1 + R2); for example, to detect the reliability under the condition of 110V/100mA, the current limiting resistor R1 and the voltage dividing resistor R2 are set to R1+ R2 equal to 1.1k Ω, the current limiting resistor R1 is selected to be 1k Ω, the voltage dividing resistor R2 is 100 Ω, and the voltage across the voltage dividing resistor R2 is ensured to meet the rated value of the counter; if the reliability under the condition of 24V/10mA is detected, the current limiting resistor R1 does not need to be 0 omega, and the voltage dividing resistor R2 is 2.4k omega.
The working principle of the utility model is as follows:
after the control part is connected with a power supply, a time relay controls the coil of the contactor to be electrified/deenergized so as to further control the on/off of the contacts of the contactor, the coil of the intermediate relay 1 is controlled by the contacts of the contactor, the intermediate relay 1 is closed/released, so that the normally closed end of the detected quick-acting switch 2 is closed/disconnected and the normally open end is disconnected/closed, the counter is recorded for times when the detected quick-acting switch 2 is switched on every times, the numerical values of the counter are compared after detection is finished, if the readings of the counters corresponding to the detected quick-acting switch 2 are the same, the phenomenon that the quick-acting switch 2 is not switched on is not generated in the detection process, otherwise, the phenomenon that the quick-acting switch 2 is switched on is generated, and the reliability of the.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be construed as the protection scope of the present invention.
Claims (4)
- The device for detecting the reliability of the quick-acting switch is characterized by comprising a control part and a detection part, wherein the control part comprises a time relay, a contactor and an intermediate relay (1) which are sequentially connected, the quick-acting switch (2) is connected to a contact of the intermediate relay (1), the detection part comprises a current-limiting resistor R1 and a voltage-dividing resistor R2 which are connected in series, a counter is connected to the voltage-dividing resistor R2, the current-limiting resistor R1 and the voltage-dividing resistor R2 are arranged at the normally-open end and the normally-closed end of the quick-acting switch (2), and the control part and the detection part are respectively powered by a direct-current power supply.
- 2. kind of detection device for quick-acting switch reliability according to claim 1, characterized in that, the on/off time of the time relay is 3s/3s through the on/off of the intermediate relay (1) controlled by the contactor.
- 3. kind of detection device for quick-acting switch reliability according to claim 1, characterized in that, the intermediate relay (1) controls the quick-acting switch (2) to close or open, the number of the quick-acting switch (2) installed on the intermediate relay (1) is 1-5.
- 4. The kind of testing device for the reliability of quick action switch according to claim 1, wherein the counter is a DC voltage input type counter, the input voltage is DC 4-30V, the counter counts speed in the range of 5-10 times/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920468984.4U CN210005643U (en) | 2019-04-08 | 2019-04-08 | detecting device for reliability of quick-acting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920468984.4U CN210005643U (en) | 2019-04-08 | 2019-04-08 | detecting device for reliability of quick-acting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210005643U true CN210005643U (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920468984.4U Active CN210005643U (en) | 2019-04-08 | 2019-04-08 | detecting device for reliability of quick-acting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210005643U (en) |
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2019
- 2019-04-08 CN CN201920468984.4U patent/CN210005643U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211011 Address after: Room 1202, No. 1088, Zhongshan South Road, Huangpu District, Shanghai 200001 Patentee after: Shanghai yingzhenyingtai measurement and Control Technology Co.,Ltd. Address before: No.85, Jinye 1st Road, high tech Zone, Xi'an, Shaanxi 710065 Patentee before: XI'AN KAITIAN RAILWAY ELECTRICAL Co.,Ltd. |