CN215493670U - Subway rotation speed sensor testing and metering device - Google Patents
Subway rotation speed sensor testing and metering device Download PDFInfo
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- CN215493670U CN215493670U CN202122323300.1U CN202122323300U CN215493670U CN 215493670 U CN215493670 U CN 215493670U CN 202122323300 U CN202122323300 U CN 202122323300U CN 215493670 U CN215493670 U CN 215493670U
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- direct current
- gear
- speed sensor
- rotation speed
- alternating current
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Abstract
The utility model relates to a testing and metering device for a subway rotating speed sensor, and belongs to the technical field of subway measuring equipment. The utility model comprises a coupler and three testing circuits connected with the coupler, which are sequentially as follows: the stepping motor driving test circuit comprises a multi-gear switch, a pulse generator and a stepping motor, wherein the multi-gear switch sends out a gear adjusting pulse signal through the pulse generator; the direct current motor driving test circuit comprises a direct current adjustable power supply, a direct current contactor and a direct current motor, wherein the direct current adjustable power supply provides a stable and adjustable direct current power supply for the direct current motor through the direct current contactor; the alternating current motor driving test circuit comprises a multi-gear regulator, an alternating current frequency converter and an alternating current motor, wherein the multi-gear regulator controls the alternating current frequency converter to provide a stable and adjustable alternating current power supply for the alternating current motor; the utility model can automatically drive the speed measuring gear to rotate and send a rotating speed signal to the rotating speed sensor; the device has the advantages of small volume, high metering precision, low labor intensity, high metering efficiency and the like.
Description
Technical Field
The utility model relates to a testing and metering device for a subway rotating speed sensor, and belongs to the technical field of subway measuring equipment.
Background
The subway rotation speed sensor is mainly used for detecting the rotation speed and the speed of an air conditioner motor, a traction motor and a vehicle door driving motor. The revolution speed sensor sometimes malfunctions occasionally. For accidental faults, the faults are difficult to capture, and a rotating speed sensor metering device is developed for the purpose.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a testing and metering device for a subway rotating speed sensor.
The utility model relates to a subway rotating speed sensor testing and metering device, which comprises a speed measuring gear, a rotating speed sensor, a coupler and three testing lines, wherein the rotating speed sensor is arranged on one side of the speed measuring gear and used for detecting the speed measuring gear, the three testing lines are connected with the coupler, and the three testing lines sequentially comprise:
the stepping motor driving test circuit comprises a multi-gear switch, a pulse generator and a stepping motor, wherein the multi-gear switch sends out a gear adjusting pulse signal through the pulse generator;
the direct current motor driving test circuit comprises a direct current adjustable power supply, a direct current contactor and a direct current motor, wherein the direct current adjustable power supply provides a stable and adjustable direct current power supply for the direct current motor through the direct current contactor;
the alternating current motor driving test circuit comprises a multi-gear regulator, an alternating current frequency converter and an alternating current motor, wherein the multi-gear regulator controls the alternating current frequency converter to provide a stable alternating current power supply with adjustable frequency for the alternating current motor;
the stepping motor, the direct current motor and the alternating current motor are all connected to the coupler.
The utility model skillfully utilizes the introduction of the stepping motor, the direct current motor and the alternating current motor, realizes the test simulation of the rotation of various motors and multiple scenes, provides input signals for the rotating speed sensor and has more accurate test. According to the traditional subway rotation speed sensor detection method, rotation speed input is provided manually and non-accurately, so that the precision is not high enough, and the automation degree is low.
Preferably, the multi-gear switch provides a gear signal to the pulse generator, the pulse generator sends a pulse to the stepping motor, the direct-current power supply supplies power to the stepping motor, and the stepping motor drives the rotary coupler; the direct current adjustable power box supplies power to the direct current contactor, the starting switch controls the direct current contactor, the direct current contactor controls the direct current motor to supply power, the direct current power supply supplies power to the direct current motor, and the direct current motor drives the rotating coupler; the single-phase voltage-stabilized source supplies power to the variable current frequency converter, the alternating current frequency converter controls the power supply to the alternating current motor, the alternating current motor drives the rotating coupler, and the multi-stage gear regulator provides a stage signal with frequency control to the alternating current frequency converter.
Preferably, the rotation speed sensor is also connected with an oscilloscope, and the oscilloscope displays the detected rotation speed on a display thereof and prints the rotation speed through a serial printer connected with the oscilloscope; the oscilloscope is provided with an interface for connecting the SD card.
The utility model skillfully utilizes the introduction of the oscilloscope, can visually display and compare a theoretical rotating speed waveform and an actual rotating speed waveform, and can automatically store the speed waveform and the speed data. The traditional subway rotation speed sensor detection method does not adopt an oscilloscope, has no place to display rotation speed waveforms, and is not visual enough.
Preferably, the coupler drives the rotation speed measuring gear, the speed measuring gear sends rectangular waves to the rotation speed sensor, the rotation speed sensor drives the oscilloscope to display pulse waveforms, the pulse waveforms of the rotation speed sensor are stored in the external SD card, and the oscilloscope drives the serial port printer to automatically print the pulse waveforms of the rotation speed sensor.
Preferably, in the stepping motor driving test circuit, the multi-gear switch triggers the pulse generator to start the corresponding working mode by switching to different gears.
Preferably, in the step motor driving test circuit, the step motor is powered by an external direct current power supply.
Preferably, in the dc motor drive test line, the dc adjustable power supply is connected to the dc contactor through a start switch.
The utility model skillfully utilizes the introduced direct-current adjustable power supply, realizes the multi-gear speed regulation of the direct-current motor, and has more accurate speed regulation, more convenient and fast test and higher efficiency. In the traditional subway rotation speed sensor detection method, the output voltage of a direct-current power supply is not adjustable, the test is not comprehensive enough, and the detection is not convenient enough.
Preferably, in the alternating current motor drive test circuit, the multi-gear regulator has fixed multistage gears, and each gear is accurately positioned through the positioning groove and can be accurately regulated when the alternating current frequency converter is regulated.
The utility model skillfully utilizes the introduction of the multi-stage gear regulator, provides the multi-stage AC motor rotating speed input, realizes the multi-stage rotating speed input and more comprehensive detection of the rotating speed sensor. According to the traditional subway rotation speed sensor detection method, a multi-level gear regulator is not adopted, only one rotation speed test is generally carried out, and the test is not comprehensive enough and accurate not enough.
The utility model has the beneficial effects that: the subway rotation speed sensor testing and metering device can automatically drive the speed measuring gear to rotate and send a rotation speed signal to the rotation speed sensor; the device has the advantages of small volume, high metering precision, low labor intensity, high metering efficiency and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1, the device for testing and metering a subway rotation speed sensor according to the present invention comprises a multi-gear switch, a pulse generator, a stepping motor, a dc power supply 1, a coupler, a speed measuring gear, a rotation speed sensor to be tested, an oscilloscope, a serial printer, an SD card, a dc adjustable power supply, a dc contactor, a dc motor, a single-phase elegant power supply, an ac frequency converter, an ac motor, and a multi-stage gear regulator.
The utility model comprises a speed measuring gear, a rotating speed sensor which is arranged on one side of the speed measuring gear and is used for detecting the speed measuring gear, a coupler and three testing circuits which are connected with the coupler, and the three testing circuits sequentially comprise:
the stepping motor driving test circuit comprises a multi-gear switch, a pulse generator and a stepping motor, wherein the multi-gear switch sends out a gear adjusting pulse signal through the pulse generator;
the direct current motor driving test circuit comprises a direct current adjustable power supply, a direct current contactor and a direct current motor, wherein the direct current adjustable power supply provides a stable and adjustable direct current power supply for the direct current motor through the direct current contactor;
the alternating current motor driving test circuit comprises a multi-gear regulator, an alternating current frequency converter and an alternating current motor, wherein the multi-gear regulator controls the alternating current frequency converter to provide a stable and adjustable alternating current power supply for the alternating current motor;
the stepping motor, the direct current motor and the alternating current motor are all connected to the coupler.
The utility model skillfully utilizes the introduction of the stepping motor, the direct current motor and the alternating current motor, realizes the test simulation of the rotation of various motors and multiple scenes, provides input signals for the rotating speed sensor and has more accurate test. According to the traditional subway rotation speed sensor detection method, manual non-accurate rotation speed input is adopted, so that the precision is not high enough, and the automation degree is low.
Preferably, the rotation speed sensor is also connected with an oscilloscope, and the oscilloscope displays the detected rotation speed on a display thereof and prints the rotation speed through a serial printer connected with the oscilloscope; the oscilloscope is provided with an interface for connecting the SD card.
The utility model skillfully utilizes the introduction of the oscilloscope, can visually display and compare a theoretical rotating speed waveform and an actual rotating speed waveform, and can automatically store the speed waveform and the speed data. The traditional subway rotation speed sensor detection method does not adopt an oscilloscope, has no place to display rotation speed waveforms, and is not visual enough.
Preferably, in the stepping motor driving test circuit, the multi-gear switch triggers the pulse generator to start the corresponding working mode by switching to different gears.
Preferably, in the step motor driving test circuit, the step motor is powered by an external direct current power supply.
Preferably, in the dc motor drive test line, the dc adjustable power supply is connected to the dc contactor through a start switch.
The utility model skillfully utilizes the introduced direct-current adjustable power supply, realizes the multi-gear speed regulation of the direct-current motor, and has more accurate speed regulation, more convenient and fast test and higher efficiency. In the traditional subway rotation speed sensor detection method, the output voltage of a direct-current power supply is not adjustable, the test is not comprehensive enough, and the detection is not convenient enough.
Preferably, in the alternating current motor drive test circuit, the multi-gear regulator has fixed multistage gears, and each gear is accurately positioned through the positioning groove and can be accurately regulated when the alternating current frequency converter is regulated.
The utility model skillfully utilizes the introduction of the multi-stage gear regulator, provides the multi-stage AC motor rotating speed input, realizes the multi-stage rotating speed input and more comprehensive detection of the rotating speed sensor. According to the traditional subway rotation speed sensor detection method, a multi-level gear regulator is not adopted, only one rotation speed test is generally carried out, and the test is not comprehensive enough and accurate not enough.
The utility model has the beneficial effects that: the subway rotation speed sensor testing and metering device can automatically drive the speed measuring gear to rotate and send a rotation speed signal to the rotation speed sensor; the device has the advantages of small volume, high metering precision, low labor intensity, high metering efficiency and the like.
The use process of the utility model is as follows: according to the subway rotating speed sensor testing and metering device, a multi-gear switch provides gear signals to a pulse generator, the pulse generator sends pulses to a stepping motor, a direct-current power supply 1 supplies power to the stepping motor, and the stepping motor drives a rotating coupler; the DC adjustable power box supplies power to the DC contactor, the starting switch controls the DC contactor to supply power to the DC motor, the DC power supply 2 supplies power to the DC motor, and the DC motor drives the rotating coupler; the single-phase voltage-stabilized power supply supplies power to the variable-current frequency converter, the alternating-current frequency converter controls the power supply to the alternating-current motor, the alternating-current motor drives the rotating coupler, and the multi-stage gear regulator provides a level signal to the alternating-current frequency converter; the coupler drives the rotation speed measuring gear to rotate, the speed measuring gear sends rectangular waves to the rotating speed sensor, the rotating speed sensor drives the oscilloscope to display pulse waveforms, meanwhile, the pulse waveforms of the rotating speed sensor are stored in the external SD card, and meanwhile, the oscilloscope drives the serial port printer to automatically print the pulse waveforms of the rotating speed sensor.
The utility model can be widely applied to subway measuring equipment occasions.
It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a subway speed sensor test and metering device, includes the gear that tests the speed and installs in gear one side that tests the speed and be used for detecting the speed sensor who tests the gear, its characterized in that still includes the shaft coupling to and the three routes test line that links to each other with the shaft coupling, do in proper order:
the stepping motor driving test circuit comprises a multi-gear switch, a pulse generator and a stepping motor, wherein the multi-gear switch sends out a gear adjusting pulse signal through the pulse generator;
the direct current motor driving test circuit comprises a direct current adjustable power supply, a direct current contactor and a direct current motor, wherein the direct current adjustable power supply provides a stable and adjustable direct current power supply for the direct current motor through the direct current contactor;
the alternating current motor driving test circuit comprises a multi-gear regulator, an alternating current frequency converter and an alternating current motor, wherein the multi-gear regulator controls the alternating current frequency converter to provide a stable alternating current power supply with adjustable frequency for the alternating current motor;
the stepping motor, the direct current motor and the alternating current motor are all connected to the coupler.
2. The subway rotation speed sensor testing and metering device according to claim 1, wherein said multi-gear switch provides gear signals to a pulse generator, the pulse generator sends pulses to a stepping motor, a direct current power supply supplies power to the stepping motor, and the stepping motor drives a rotary coupling; the direct current adjustable power box supplies power to the direct current contactor, the starting switch controls the direct current contactor, the direct current contactor controls the direct current motor to supply power, the direct current power supply supplies power to the direct current motor, and the direct current motor drives the rotating coupler; the single-phase voltage-stabilized source supplies power to the variable current frequency converter, the alternating current frequency converter controls the power supply to the alternating current motor, the alternating current motor drives the rotating coupler, and the multi-stage gear regulator provides a stage signal with frequency control to the alternating current frequency converter.
3. A subway rotation speed sensor testing and metering device as claimed in claim 1, wherein said rotation speed sensor is further connected with an oscilloscope, the oscilloscope displays the detected rotation speed on its display, and prints it through a serial printer connected to it; the oscilloscope is provided with an interface for connecting the SD card.
4. A subway rotation speed sensor testing and metering device as claimed in claim 3, wherein said coupler drives a rotation speed measuring gear, the speed measuring gear sends rectangular wave to the rotation speed sensor, the rotation speed sensor drives an oscilloscope to display pulse waveform, the pulse waveform of the rotation speed sensor is stored in an external SD card, and the oscilloscope drives a serial port printer to automatically print the pulse waveform of the rotation speed sensor.
5. A subway rotation speed sensor testing and metering device as claimed in claim 1, wherein in said stepping motor driving test circuit, a multi-gear switch is switched to different gears, so as to trigger a pulse generator to start corresponding working mode.
6. A subway rotation speed sensor testing and metering device as claimed in claim 1, wherein in said stepping motor driving test line, the stepping motor is powered by an external dc power supply.
7. A subway rotation speed sensor testing and metering device as claimed in claim 1, wherein in said dc motor drive test line, a dc adjustable power supply is connected to a dc contactor through a start switch.
8. A subway rotation speed sensor testing and metering device as claimed in claim 1, wherein in said AC motor drive test circuit, the multi-gear regulator has fixed multi-stage gears, each gear is accurately positioned by a positioning slot, and can be accurately regulated when the AC frequency converter is regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122323300.1U CN215493670U (en) | 2021-09-24 | 2021-09-24 | Subway rotation speed sensor testing and metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122323300.1U CN215493670U (en) | 2021-09-24 | 2021-09-24 | Subway rotation speed sensor testing and metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215493670U true CN215493670U (en) | 2022-01-11 |
Family
ID=79770011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122323300.1U Expired - Fee Related CN215493670U (en) | 2021-09-24 | 2021-09-24 | Subway rotation speed sensor testing and metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215493670U (en) |
-
2021
- 2021-09-24 CN CN202122323300.1U patent/CN215493670U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220111 |