CN211783282U - Flywheel signal hole signal reading device - Google Patents
Flywheel signal hole signal reading device Download PDFInfo
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- CN211783282U CN211783282U CN202020338941.7U CN202020338941U CN211783282U CN 211783282 U CN211783282 U CN 211783282U CN 202020338941 U CN202020338941 U CN 202020338941U CN 211783282 U CN211783282 U CN 211783282U
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Abstract
The utility model discloses a flywheel signal hole signal reading device relates to flywheel signal hole quality testing technical field. The flywheel signal hole signal reading device comprises a support and a probe arranged on the support, the probe is connected with an oscilloscope, a magnetoelectric rotating speed sensor is arranged on the probe, the magnetoelectric rotating speed sensor mainly utilizes the principle of electromagnetic induction phenomenon, and when the magnetic flux passing through a circuit changes, induced electromotive force is generated in the circuit. The magnetoelectric rotation speed sensor comprises a shell, wherein the shell is connected with a mounting surface, and a permanent magnet, a soft iron core and a coil are mounted on the mounting surface from top to bottom; when the signal panel of the flywheel rotates, the effective magnetic force lines generated by the permanent magnets are continuously amplified and weakened by the signal holes at the edge of the signal panel, and the change of the effective magnetic force lines enables the coil to generate induced electromotive force.
Description
Technical Field
The utility model relates to a flywheel signal hole quality testing technical field, concretely relates to flywheel signal hole signal reading system.
Background
The flywheel, which serves as a key connecting component between the engine output crankshaft and the torque converter, has a mass that is directly related to the power transmission characteristics, comfort and safety of the vehicle. Therefore, it is important to detect the flywheel to ensure the quality of the flywheel. At present, devices for detecting whether the positions of signal holes on the edge of a flywheel are consistent are different, for example, a face runout detection device is used for detecting the face runout error of the flywheel; the outer edge information and the like of the flywheel are obtained through a wheel edge detection device; the detection effect is not ideal, and the accuracy is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the aforesaid not enough, provide one kind through utilizing the electromagnetic induction phenomenon, when the magnetic flux that passes the circuit changes, just produce the response electromotive force in the circuit, the output is with rotational speed proportional sinusoidal voltage, through output signal judgement flywheel signal hole signal reading device whether unanimous in flywheel signal hole position.
The utility model discloses mainly adopt following technical scheme:
a flywheel signal hole signal reading device comprises a support and a probe installed on the support, wherein the probe is connected with an oscilloscope, a magnetoelectric rotating speed sensor is installed on the probe and comprises a shell, the shell is connected with an installation surface, and a permanent magnet, a soft iron core and a coil are installed on the installation surface from top to bottom; when the signal panel of the flywheel rotates, the effective magnetic force lines generated by the permanent magnets are continuously amplified and weakened by the signal holes at the edge of the signal panel, the change of the effective magnetic force lines enables the coils to generate induced electromotive force, sine voltage proportional to the rotating speed is output, sine voltage signals are input into the oscilloscope, and the oscilloscope displays waveforms according to the voltage.
Preferably, the position of the signal hole is judged based on the size of the sinusoidal voltage peak value, wherein the sinusoidal voltage peak value is output more rapidly when the signal panel rotates, and vice versa.
Preferably, the magneto-electric rotating speed sensor collects the rotating speed and the phase angle of a crankshaft/camshaft to determine the ignition moment and the fuel injection moment.
Preferably, the magnetoelectric rotation speed sensor is connected with the oscilloscope through a wiring harness, wherein the wiring harness is TE 2050046-1, and the magnetoelectric rotation speed sensor is 612630030007.
Preferably, when the position of the signal hole is accurate, the oscilloscope displays uniform square wave waveforms, and when the position of the signal hole changes, interference waveforms with regular waveforms appear between normal waveforms of the oscilloscope.
The utility model discloses following beneficial effect has:
the magnetoelectric rotation speed sensor detects the edge of a signal panel of the minute wheel, when the signal panel of the flywheel rotates, effective magnetic lines of force generated by the permanent magnet are continuously amplified and weakened by signal holes at the edge of the signal panel, the change of the effective magnetic lines of force enables induced electromotive force to be generated in a coil, sine voltage proportional to the rotation speed is output, sine voltage signals are input into the oscilloscope, and the oscilloscope displays waveforms according to the voltage; when the positions of the signal holes are accurate, the oscilloscope displays uniform square wave waveforms, when the positions of the signal holes are changed, interference waveforms and interference waveform rules exist among normal waveforms of the oscilloscope, the positions of the signal holes on the edge of the signal panel are visually shown through waveform changes, the signal holes are checked, and whether the positions of the signal holes are accurate or not and whether repair traces exist or not are determined.
Drawings
FIG. 1 is a schematic view of a flywheel signal hole reading device;
fig. 2 is a schematic structural diagram of a magnetoelectric rotation speed sensor.
Fig. 3 is a schematic diagram of an oscilloscope waveform.
Wherein, 1 is the signal panel, 2 is the signal hole, 3 is the probe, 4 is the permanent magnet, 5 is the shell, 6 is the installation face, 7 is soft iron core, 8 is the coil.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
referring to fig. 1 and 2, the flywheel signal hole signal reading device comprises a support and a probe 3 mounted on the support, wherein the probe 3 is connected with an oscilloscope, a magnetoelectric rotation speed sensor is mounted on the probe 3, and the magnetoelectric rotation speed sensor mainly utilizes the principle of electromagnetic induction phenomenon, and when the magnetic flux passing through a circuit changes, induced electromotive force is generated in the circuit.
The magnetoelectric revolution speed sensor comprises a shell 5, wherein the shell 5 is connected with a mounting surface 6, and a permanent magnet 4, a soft iron core 7 and a coil 8 are arranged on the mounting surface 6 from top to bottom; when the signal panel 1 of the flywheel rotates, the effective magnetic force lines generated by the permanent magnets are continuously amplified and weakened by the signal holes at the edge of the signal panel, the effective magnetic force lines are changed to generate induced electromotive force in the coils, sinusoidal voltage proportional to the rotating speed is output, sinusoidal voltage signals are input into the oscilloscope, the oscilloscope displays waveforms according to the voltage, the larger the sinusoidal voltage peak value output when the rotating speed of the signal panel is faster, and otherwise, the smaller the sinusoidal voltage peak value is, and the positions of the signal holes are judged based on the size of the sinusoidal voltage peak value.
The magnetoelectric rotation speed sensor collects the rotation speed and the phase angle of the crankshaft/camshaft to determine the ignition moment and the oil injection moment.
The magnetoelectric rotation speed sensor is connected with the oscilloscope through a wiring harness, the model of the wiring harness is TE 2050046-1, and the model of the magnetoelectric rotation speed sensor is 612630030007.
Referring to fig. 3, before reading a signal hole signal of a flywheel signal, determining a standard part, determining a qualified product as the standard part by using three coordinates, setting scales on an oscilloscope, inputting a waveform by placing the standard part in a workbench to form a standard waveform, and marking a spacing size between waveform holes, a hole depth size, a size between a positioning pin and an initial hole, and the number of waveforms.
A power supply is connected to the magnetoelectric rotating speed sensor to generate Hall voltage; the Hall voltage changes with the change of the magnetic field intensity, the stronger the magnetic field, the higher the voltage, the weaker the magnetic field, the lower the voltage, the small Hall voltage value, usually only a few millivolts, amplified by the amplifier in the integrated circuit, can output the stronger voltage signal. When the measured piece rotates to approach the magnetoelectric rotation speed sensor, the magnetic flux formed inside the measured piece changes, the output voltage of the integrated circuit changes along with the change of the magnetic flux, and the signal is connected to an oscilloscope to form a waveform.
After regular waveforms are formed during working, the angle between the holes is judged according to the sizes of the waveforms, the angle between the positioning pin and the initial hole is judged according to the waveforms, and the number of the holes is judged by recording the number of the waveforms. And (3) setting a qualified size in the oscilloscope, connecting the processing machine tool with the oscilloscope, controlling the processing machine tool through a plc controller, and comparing a waveform formed by the oscilloscope with the qualified size when the processing machine tool works. And if the size is not in accordance with the standard size, outputting an alarm signal by a signal output by the oscilloscope through a machine tool plc controller to stop the machine tool, and otherwise, continuously working to produce a qualified product.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (5)
1. A flywheel signal hole signal reading device is characterized by comprising a support and a probe arranged on the support, wherein the probe is connected with an oscilloscope, a magnetoelectric rotating speed sensor is arranged on the probe, the magnetoelectric rotating speed sensor comprises a shell, the shell is connected with an installation surface, and a permanent magnet, a soft iron core and a coil are arranged on the installation surface from top to bottom; the effective magnetic force line generated by the permanent magnet is continuously amplified and weakened through the signal hole at the edge of the signal panel of the flywheel, the sine voltage proportional to the rotating speed is output, and the sine voltage signal is input into the oscilloscope.
2. The flywheel signal hole signal reading apparatus of claim 1, wherein the signal disc rotates faster and outputs a larger sinusoidal voltage peak value and vice versa, and the position of the signal hole is determined based on the size of the sinusoidal voltage peak value.
3. The flywheel signal hole signal reading device as defined in claim 1, wherein the magneto-electric rotation speed sensor collects the rotation speed and phase angle of the crankshaft/camshaft to determine the ignition moment and the fuel injection moment.
4. The flywheel signal hole signal reading device of claim 1, wherein the magnetoelectric rotation speed sensor is connected with the oscilloscope through a wiring harness, the wiring harness is TE 2050046-1, and the magnetoelectric rotation speed sensor is 612630030007.
5. The apparatus according to claim 1, wherein the oscilloscope displays a uniform square waveform when the position of the signal hole is accurate, and an interference waveform with a regular waveform appears between normal waveforms of the oscilloscope when the position of the signal hole is changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020338941.7U CN211783282U (en) | 2020-03-18 | 2020-03-18 | Flywheel signal hole signal reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020338941.7U CN211783282U (en) | 2020-03-18 | 2020-03-18 | Flywheel signal hole signal reading device |
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| CN211783282U true CN211783282U (en) | 2020-10-27 |
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| CN202020338941.7U Active CN211783282U (en) | 2020-03-18 | 2020-03-18 | Flywheel signal hole signal reading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586469A (en) * | 2021-08-20 | 2021-11-02 | 合肥新沪屏蔽泵有限公司 | Rotating speed steering detection device of high-temperature and high-pressure canned motor pump |
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2020
- 2020-03-18 CN CN202020338941.7U patent/CN211783282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586469A (en) * | 2021-08-20 | 2021-11-02 | 合肥新沪屏蔽泵有限公司 | Rotating speed steering detection device of high-temperature and high-pressure canned motor pump |
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