CN214793796U

CN214793796U - New energy automobile bearing early failure stethoscope

Info

Publication number: CN214793796U
Application number: CN202120665163.7U
Authority: CN
Inventors: 章力; 王敏敏; 郭帅; 郭玉琳; 李伟; 高旭
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-19
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to an automobile bearing detects technical field, and specific is a new energy automobile bearing early fault stethoscope. The stethoscope comprises a signal acquisition probe, a auscultation system, a display screen, an earphone and a power supply module; the auscultation system comprises a signal conditioning module, an analog-to-digital conversion module, a single chip microcomputer controller and a digital-to-analog conversion module; the power module is respectively connected with the signal acquisition probe, the auscultation system, the display screen and the earphone. The signal acquisition probe is a resonance acceleration sensor, acquires early fault signals, transmits the acquired signals to the auscultation system at a high speed in real time, and the auscultation system processes and analyzes the acquired signals, receives auscultation sounds by wearing earphones and displays fault report information by using a display screen. The utility model discloses can realize in time getting rid of the early fault diagnosis of bearing to new energy automobile, improve new energy automobile driving safety.

Description

New energy automobile bearing early failure stethoscope

Technical Field

The utility model relates to an automobile bearing detects technical field, and specific is a new energy automobile bearing early fault stethoscope.

Background

The new energy automobile has the outstanding advantages of environmental protection, energy conservation and the like, is greatly developed by governments of various countries, and becomes an important future development direction of the automobile industry. The research on the fault diagnosis technology of the key parts of the new energy electric automobile, particularly the high-speed bearing in the driving system, has an important effect on improving the comfort performance and the safety performance of the new energy electric automobile.

Patent document No. CN206479129U discloses a bearing detector, which includes a detection platform, a column, a meter, a detection device and an end face support device, wherein the detection device includes a detection head and a detection rod. It is not suitable for in-service bearing detection and cannot detect early bearing failure.

SUMMERY OF THE UTILITY MODEL

For solving the not enough that mentions in the above-mentioned background art, the utility model aims to provide a new energy automobile bearing early fault auscultation appearance handles the bearing early fault signal that the signal acquisition probe gathered through auscultation system, can realize the detection to new energy automobile bearing early fault to pass through earphone output with testing result and judge for the testing personnel, detect report display on the display screen, can overcome the not enough of prior art.

The purpose of the utility model can be realized by the following technical scheme:

a new energy automobile bearing early failure stethoscope comprises a signal acquisition probe, a auscultation system, a display screen, an earphone and a power supply module; the auscultation system comprises a signal conditioning module, an analog-to-digital conversion module, a single chip microcomputer controller and a digital-to-analog conversion module; the power supply module is respectively connected with the signal acquisition probe, the auscultation system, the display screen and the earphone.

Preferably, the signal acquisition probe is a resonant acceleration sensor.

Preferably, the auscultation system comprises a signal conditioning module, an analog-to-digital conversion module, a single chip microcomputer controller and a digital-to-analog conversion module; the signal conditioning module is electrically connected with the analog-to-digital conversion module; the analog-to-digital conversion module is used as an input module and is electrically connected with the single chip microcomputer controller; the single chip microcomputer controller is electrically connected with the digital-to-analog conversion module.

Preferably, the signal conditioning module is a signal amplifying circuit and an anti-aliasing filtering circuit; the single chip microcomputer controller is an STM32 single chip microcomputer.

Preferably, the digital-to-analog conversion module is connected with the earphone.

Preferably, the signal acquisition probe is electrically connected with the signal conditioning module.

Preferably, the display screen is electrically connected with the single chip microcomputer controller.

The utility model has the advantages that:

compared with the prior art, the utility model discloses use resonance acceleration sensor as the signal acquisition probe, gather high frequency fault signal through the signal acquisition probe, handle through auscultation system, through earphone output trouble sound, the detection report shows on the display screen. An operator judges whether the high-speed bearing of the new energy automobile breaks down or not through the sound generated by the stethoscope, and checks the fault report information on the display screen, so that a complete and accurate fault diagnosis result can be automatically given, and the influence of the early fault of the high-speed bearing on the safety of the automobile can be eliminated.

And simultaneously, the utility model discloses still have compact structure, reliable operation, advantages such as equipment cost is low and easy operation.

Drawings

The present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the overall module of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a diagnostic flow chart of the present invention;

wherein the numbers in the figures are as follows:

1. a signal acquisition probe 2, an auscultation system 21, a signal conditioning module 22, an analog-to-digital conversion module 23, a singlechip controller 24, a digital-to-analog conversion module 3, a display screen 4, an earphone 5 and a power supply module,

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the auscultator for early bearing failure of the new energy automobile is characterized by comprising a signal acquisition probe 1, an auscultation system 2, a display screen 3, an earphone 4 and a power supply module 5; the auscultation system 2 comprises a signal conditioning module 21, an analog-to-digital conversion module 22, a single chip microcomputer controller 23 and a digital-to-analog conversion module 24; the power supply module 5 is respectively connected with the signal acquisition probe 1, the auscultation system 2, the display screen 3 and the earphone 4.

As shown in fig. 1-3, the signal acquisition probe 1 is a resonant acceleration sensor; the signal acquisition probe 1 is electrically connected with the signal conditioning module 21.

The auscultation system 2 comprises a signal conditioning module 21, an analog-to-digital conversion module 22, a single chip microcomputer controller 23 and a digital-to-analog conversion module 24; the signal conditioning module 21 is electrically connected with the analog-to-digital conversion module 22; the analog-to-digital conversion module 22 is used as an input module and is electrically connected with the single chip microcomputer controller 23; the single-chip microcomputer controller 23 is electrically connected with the digital-to-analog conversion module 24.

The signal conditioning module 21 is a signal amplifying circuit and an anti-aliasing filter circuit; the single chip controller 23 is an STM32 single chip.

The digital-to-analog conversion module 24 is connected to the headset 4.

The display screen 3 is electrically connected with the single chip microcomputer controller 23.

When the novel energy automobile bearing early failure stethoscope is used, an operator switches on a switch of the novel energy automobile bearing early failure stethoscope, attaches a signal acquisition probe 1 to a novel energy automobile bearing to be detected, wears an earphone 4 to receive auscultation sound of the detected novel energy automobile bearing, and checks failure report information on a display screen 3, and finally realizes diagnosis of the novel energy automobile bearing.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The auscultator for early failure of the bearing of the new energy automobile is characterized by comprising a signal acquisition probe (1), an auscultation system (2), a display screen (3), an earphone (4) and a power supply module (5); the auscultation system (2) comprises a signal conditioning module (21), an analog-to-digital conversion module (22), a single chip microcomputer controller (23) and a digital-to-analog conversion module (24); the power supply module (5) is respectively connected with the signal acquisition probe (1), the auscultation system (2), the display screen (3) and the earphone (4).

2. The auscultator for early bearing failure of the new energy automobile is characterized in that the signal acquisition probe (1) is a resonance acceleration sensor.

3. The stethoscope for the early failure of the bearing of the new energy automobile as claimed in claim 1, wherein the auscultation system (2) comprises a signal conditioning module (21), an analog-to-digital conversion module (22), a single chip microcomputer controller (23) and a digital-to-analog conversion module (24); the signal conditioning module (21) is electrically connected with the analog-to-digital conversion module (22); the analog-digital conversion module (22) is used as an input module and is electrically connected with the single chip microcomputer controller (23); the single chip microcomputer controller (23) is electrically connected with the digital-to-analog conversion module (24).

4. The auscultator for the early bearing fault of the new energy automobile is characterized in that the signal conditioning module (21) is a signal amplifying circuit and an anti-aliasing filter circuit; the single chip microcomputer controller (23) is an STM32 single chip microcomputer.

5. The new energy automobile bearing early failure stethoscope according to claim 1 or 3, wherein the digital-to-analog conversion module (24) is connected with the earphone (4).

6. The auscultation instrument for the early bearing failure of the new energy automobile as claimed in claim 2 or 3, wherein the signal acquisition probe (1) is electrically connected with the signal conditioning module (21).

7. The auscultation instrument for the early bearing failure of the new energy automobile as claimed in claim 1 or 3, wherein the display screen (3) is electrically connected with the single chip microcomputer controller (23).