CN104122088A - Hub bearing negative play detection method and hub bearing negative play detection equipment - Google Patents
Hub bearing negative play detection method and hub bearing negative play detection equipment Download PDFInfo
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- CN104122088A CN104122088A CN201410371187.6A CN201410371187A CN104122088A CN 104122088 A CN104122088 A CN 104122088A CN 201410371187 A CN201410371187 A CN 201410371187A CN 104122088 A CN104122088 A CN 104122088A
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Abstract
The invention discloses a hub bearing negative play detection method and hub bearing negative play detection equipment. The hub bearing negative play detection method includes that an exciting device is used for exerting vibrational excitation on an inner ring flange in a to-be-detected hub bearing, and vibration frequency is increased continuously until the to-be-detected hub bearing and the exciting device are in resonance; at the same time, at least three signal sensors are used for detecting vibration signals of the inner ring flange and an outer ring flange of the to-be-detected hub bearing and transmitting the detected vibration signals to a data acquiring and processing device; the data acquiring and processing device computes resonant frequency of the bearing through a Fourier algorithm according to the obtained vibration signals and then computes a negative play value of the to-be-detected hub bearing according to the resonant frequency. The hub bearing negative play detection equipment is simple in structure, the hub bearing negative play detection method is rapid and accurate, and thereby the equipment and the method are particularly applicable to automobile third-generation hub bearing units with preload.
Description
Technical field
The present invention relates to a kind of negative play detection method and equipment, relate in particular to a kind of hub spindle and carry play detection method and checkout equipment.
Background technology
Negative play bearing is owing to having the following advantages: the one, and beating can avoid bearing operation time, keeps the steady of bearing movable; The 2nd, there are some researches prove when the amount of being full of of having served as is an OK range, can improve bearing load carrying capacity.Therefore bearing negative play need to remain in a suitable scope.
But cannot directly measure for bearing negative gap value at present, especially for automobile three generations hub-bearing unit generally all with preloading, and more cannot directly measure with the automobile hub bearing preloading.Need to repeatedly adjust reconditioning bearing parts size in bearing manufacture process like this, repeatedly close mill assembling, production efficiency is very low.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of hub spindle and carry play detection method and checkout equipment, go out the natural frequency of bearing by measuring the vibration signal transformation calculations applying on hub bearing, can obtain thus the negative gap value of hub bearing.
The present invention for the technical scheme that solves its technical matters and adopt is: a kind of hub spindle carries play detection method, adopt exciting bank to apply vibrational excitation to hub bearing inner ring flange to be detected, and the vibration frequency of this vibration constantly increases, until hub bearing to be detected and its resonate, adopt at least three signal transducers in this inner ring flange to hub bearing to be detected and outer ring flange carry out vibration signal detection respectively simultaneously, the vibration signal that signal transducer detects is transferred to data acquisition unit and processor, this data acquisition unit and processor calculate the resonant frequency of bearing by Fourier's computing method according to the vibration signal obtaining, and then calculate the negative gap value of hub bearing to be detected by this vibration frequency.
As a further improvement on the present invention, described exciting bank applies vibrational excitation by a push rod to hub bearing inner ring flange to be detected.
As a further improvement on the present invention, described signal transducer is three: first signal sensor, secondary signal sensor and the 3rd signal transducer, wherein, the inner ring flange of first signal sensor contact zones hub bearing to be detected, second and third signal transducer contacts respectively the both ends of the surface of the outer ring flange of hub bearing to be detected.
The present invention also provides a kind of hub spindle that adopts above-mentioned detection method to detect to carry play checkout equipment, comprise base and be located at the positioning tool for fixing hub bearing to be detected on this base, when hub bearing to be detected is fixed on positioning tool, its inner ring is towards base direction, on described base, be provided with an exciting bank for generation of vibration, this exciting bank top is provided with a push rod, this push rod upper end is resisted against on the inner ring flange of described hub bearing to be detected, and described exciting bank can drive this push rod vibration; Be placed in correspondence on the inner ring flange of the hub bearing to be detected on positioning tool and be provided with first signal sensor, be placed in correspondence on the outer ring flange of the hub bearing to be detected on positioning tool and be at least provided with secondary signal sensor and the 3rd signal transducer, separately be provided with data acquisition unit and processor, described first, second and third signal transducer is messaging in respectively this data acquisition unit and processor.
As a further improvement on the present invention, described secondary signal sensor and the 3rd signal transducer contact with the both ends of the surface of the outer ring flange of hub bearing to be detected respectively.
The invention has the beneficial effects as follows: this hub spindle carries play detection method and checkout equipment adopts exciting bank to apply vibration signal to hub bearing to be detected, until the natural frequency of vibration frequency and hub bearing resonates, the vibration signal that data acquisition unit and processor gather according to signal transducer, adopt Fourier's computing method to calculate the resonant frequency of bearing, and then calculate the negative gap value of hub bearing.It is simple that this hub spindle carries play assay device structures, and detection method quick and precisely, is particularly useful for the automobile three generations hub-bearing unit preloading.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
By reference to the accompanying drawings, make the following instructions:
1---base 2---positioning tool
3---exciting bank 4---push rod
5---first signal sensor 6---secondary signal sensor
7---the 3rd signal transducer 8---data acquisition unit and processor
100---hub bearing 101---inner ring flange
102---outer ring flange
Embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present invention is elaborated.But protection scope of the present invention is not limited to following embodiment, the simple equivalence of in every case being done with the present patent application the scope of the claims and description changes and modifies, within all still belonging to patent covering scope of the present invention.
A kind of hub spindle carries play detection method, adopt exciting bank to apply vibrational excitation to hub bearing inner ring flange to be detected, and the vibration frequency of this vibration constantly increases, until hub bearing to be detected and its resonate, adopt at least three signal transducers in this inner ring flange to hub bearing to be detected and outer ring flange carry out vibration signal detection respectively simultaneously, the vibration signal that signal transducer detects is transferred to data acquisition unit and processor, this data acquisition unit and processor calculate the resonant frequency of bearing by Fourier's computing method according to the vibration signal obtaining, and then calculate the negative gap value of hub bearing to be detected by this vibration frequency.
Preferably, described exciting bank applies vibrational excitation by a push rod to hub bearing inner ring flange to be detected.
Preferably, described signal transducer is three: first signal sensor, secondary signal sensor and the 3rd signal transducer, wherein, the inner ring flange of first signal sensor contact zones hub bearing to be detected, second and third signal transducer contacts respectively the both ends of the surface of the outer ring flange of hub bearing to be detected.
A kind of hub spindle that adopts above-mentioned detection method to detect carries play checkout equipment, as shown in Figure 1, comprise base 1 and be located at the positioning tool 2 for fixing hub bearing 100 to be detected on this base, when hub bearing to be detected is fixed on positioning tool, its inner ring is towards base direction, on described base, be provided with an exciting bank 3 for generation of vibration, this exciting bank top is provided with a push rod 4, this push rod upper end is resisted against on the inner ring flange 101 of described hub bearing to be detected, and described exciting bank can drive this push rod vibration; Be placed in correspondence on the inner ring flange of the hub bearing to be detected on positioning tool and be provided with first signal sensor 5, be placed in correspondence on the outer ring flange 102 of the hub bearing to be detected on positioning tool and be at least provided with secondary signal sensor 6 and the 3rd signal transducer 7, separately be provided with data acquisition unit and processor 8, described first, second and third signal transducer is messaging in respectively this data acquisition unit and processor.
Preferably, described secondary signal sensor and the 3rd signal transducer contact with the both ends of the surface of the outer ring flange of hub bearing to be detected respectively.
When detection, hub bearing to be detected is positioned on positioning tool, exciting bank drives push rod to withstand the inner ring flange of hub bearing to be detected, promote hub bearing inner ring flange to be detected by exciting bank and push rod and produce vibrational excitation, frequency constantly rises to after certain numerical value, exciting bank quits work, data acquisition and processing (DAP) device calculates the vibration signal of signal transducer the resonant frequency of bearing by fast Fourier computing method (FFT), and according to this resonant frequency, can calculate the negative gap value of hub bearing to be detected.
Claims (5)
1. a hub spindle carries play detection method, it is characterized in that: adopt exciting bank to apply vibrational excitation to hub bearing inner ring flange to be detected, and the vibration frequency of this vibration constantly increases, until hub bearing to be detected and its resonate, adopt at least three signal transducers in this inner ring flange to hub bearing to be detected and outer ring flange carry out vibration signal detection respectively simultaneously, the vibration signal that signal transducer detects is transferred to data acquisition unit and processor, this data acquisition unit and processor calculate the resonant frequency of bearing by Fourier's computing method according to the vibration signal obtaining, and then calculate the negative gap value of hub bearing to be detected by this vibration frequency.
2. hub spindle according to claim 1 carries play detection method, it is characterized in that: described exciting bank applies vibrational excitation by a push rod to hub bearing inner ring flange to be detected.
3. hub spindle according to claim 1 carries play detection method, it is characterized in that: described signal transducer is three: first signal sensor, secondary signal sensor and the 3rd signal transducer, wherein, the inner ring flange of first signal sensor contact zones hub bearing to be detected, second and third signal transducer contacts respectively the both ends of the surface of the outer ring flange of hub bearing to be detected.
4. one kind adopts the hub spindle that in claims 1 to 3, the detection method described in any one detects to carry play checkout equipment, comprise base (1) and be located at the positioning tool (2) for fixing hub bearing to be detected (100) on this base, when hub bearing to be detected is fixed on positioning tool, its inner ring is towards base direction, it is characterized in that: on described base, be provided with an exciting bank (3) for generation of vibration, this exciting bank top is provided with a push rod (4), this push rod upper end is resisted against on the inner ring flange (101) of described hub bearing to be detected, described exciting bank can drive this push rod vibration, be placed in correspondence on the inner ring flange of the hub bearing to be detected on positioning tool and be provided with first signal sensor (5), be placed in correspondence on the outer ring flange (102) of the hub bearing to be detected on positioning tool and be at least provided with secondary signal sensor (6) and the 3rd signal transducer (7), separately be provided with data acquisition unit and processor (8), described first, second and third signal transducer is messaging in respectively this data acquisition unit and processor.
5. hub spindle according to claim 4 carries play checkout equipment, it is characterized in that: described secondary signal sensor and the 3rd signal transducer contact with the both ends of the surface of the outer ring flange of hub bearing to be detected respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371187.6A CN104122088A (en) | 2014-07-31 | 2014-07-31 | Hub bearing negative play detection method and hub bearing negative play detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371187.6A CN104122088A (en) | 2014-07-31 | 2014-07-31 | Hub bearing negative play detection method and hub bearing negative play detection equipment |
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| CN104122088A true CN104122088A (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410371187.6A Pending CN104122088A (en) | 2014-07-31 | 2014-07-31 | Hub bearing negative play detection method and hub bearing negative play detection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356220A (en) * | 2017-06-23 | 2017-11-17 | 萧山工业研究院 | The characteristic quantity measurement of automobile hub bearing outer ring axial direction and steel ball matching method |
| CN111829477A (en) * | 2020-07-22 | 2020-10-27 | 湖北文理学院 | Method and device for calculating negative clearance of hub bearing, storage medium and equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11153425A (en) * | 1997-09-22 | 1999-06-08 | Nippon Seiko Kk | Method and device for measuring bearing clearance of radial ball bearing |
| US20090113735A1 (en) * | 2006-05-29 | 2009-05-07 | Young Su Song | Method of measuring a clearance of a hub bearing for vehicles |
| CN201364135Y (en) * | 2009-03-02 | 2009-12-16 | 湖北新火炬科技股份有限公司 | Detection device for negative clearance of non-driving wheel hub bearing unit |
| CN103759613A (en) * | 2014-01-13 | 2014-04-30 | 洛阳理工学院 | Method for determining negative clearance of turntable bearing |
-
2014
- 2014-07-31 CN CN201410371187.6A patent/CN104122088A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11153425A (en) * | 1997-09-22 | 1999-06-08 | Nippon Seiko Kk | Method and device for measuring bearing clearance of radial ball bearing |
| US20090113735A1 (en) * | 2006-05-29 | 2009-05-07 | Young Su Song | Method of measuring a clearance of a hub bearing for vehicles |
| CN201364135Y (en) * | 2009-03-02 | 2009-12-16 | 湖北新火炬科技股份有限公司 | Detection device for negative clearance of non-driving wheel hub bearing unit |
| CN103759613A (en) * | 2014-01-13 | 2014-04-30 | 洛阳理工学院 | Method for determining negative clearance of turntable bearing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356220A (en) * | 2017-06-23 | 2017-11-17 | 萧山工业研究院 | The characteristic quantity measurement of automobile hub bearing outer ring axial direction and steel ball matching method |
| CN111829477A (en) * | 2020-07-22 | 2020-10-27 | 湖北文理学院 | Method and device for calculating negative clearance of hub bearing, storage medium and equipment |
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Application publication date: 20141029 |