CN108240906A - Test method on a kind of line of EPS decelerations mechanism assembly vibration noise - Google Patents
Test method on a kind of line of EPS decelerations mechanism assembly vibration noise Download PDFInfo
- Publication number
- CN108240906A CN108240906A CN201611206284.5A CN201611206284A CN108240906A CN 108240906 A CN108240906 A CN 108240906A CN 201611206284 A CN201611206284 A CN 201611206284A CN 108240906 A CN108240906 A CN 108240906A
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- CN
- China
- Prior art keywords
- eps
- vibration
- line
- test method
- mechanism assembly
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/028—Acoustic or vibration analysis
Abstract
The present invention relates to test methods on a kind of line of EPS decelerations mechanism assembly vibration noise, the vibration signal of deceleration mechanism and motor is acquired using three-way vibration acceleration transducer, and it is transmitted to data collector, by the way that vibration signal is transferred to processor after filter filtering, which analyzes its vibration signal to obtain noise source information the data pick-up.Compared with prior art, the present invention has many advantages, such as that easy to operate, point layout is flexibly controllable.
Description
Technical field
The present invention relates to EPS production scenes vibration and noise test technologies, shake more particularly, to a kind of EPS decelerations mechanism assembly
Test method on the line of moving noise.
Background technology
Deceleration mechanism assembly is as EPS nucleus movement components, in the EPS courses of work, including turbine and worm and electricity
Machine is one of main source that vibration noise generates, therefore it is necessary to make an uproar to the vibration of deceleration mechanism in EPS production processes
Sound is accordingly detected, to meet the NVH performances of EPS products.Currently used test method has：
1) running noises are detected using microphone, shortcoming is：It has higher requirements to ambient noise, usual EPS producing lines
Noise is at least more than 75dB (A), and at least 30dB (A) that need to decay can just be tested, and the making of sound proof box is not only expensive, but also occupies
Larger volume, operation are inconvenient.
2) using probe-type acceleration transducer test vibration, shortcoming is：It is higher to equipment requirement, integrated machine need to be made
Tool arm and related Control System, cost are higher.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of EPS decelerations mechanism is total
Test method on into the line of vibration noise.
The purpose of the present invention can be achieved through the following technical solutions：
Test method on a kind of line of EPS decelerations mechanism assembly vibration noise, is adopted using three-way vibration acceleration transducer
Collect the vibration signal of deceleration mechanism and motor, and be transmitted to data collector, which passes through filter filtering
Vibration signal is transferred to processor afterwards, which analyzes its vibration signal to obtain noise source information.
Preferably, the three-way vibration acceleration transducer is fixed on using wax on the housing of deceleration mechanism.
Preferably, the three-way vibration acceleration transducer is fixed on the housing near deceleration mechanism worm and gear
On.
Preferably, the three-way vibration acceleration transducer is fixed on the housing of motor.
Preferably, the three-way vibration acceleration transducer is fixed at the same time near turbine and worm and the housing of motor
On.
Preferably, the vibration noise collecting device that the data collector is integrated in EPS equipment or is taken separated from, and
The vibration acceleration signal of test 0~2kHz ranges is chosen according to EPS vibration regularities.
Compared with prior art, the present invention has the following advantages：
1. it is easy to operate, relative to other fixed forms are used, producing line cycle time can be saved.
2. point layout is flexibly controllable, can measuring point be changed according to product demand at any time, without changing equipment.
3. the selection of the system of test is various, the vibration noise acquisition of the companies such as conventional test system such as B＆K, LMS can be used to set
It is standby, it also can be from being about to Acquisition Instrument and wave filter is integrated in equipment.
4. ambient noise requirement is low, without sound proof box, acceleration signal truer can must react deceleration mechanism and motor
Vibration Condition.
Description of the drawings
Fig. 1 is the flow chart of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is the part of the embodiment rather than whole embodiments of the present invention.Based on this hair
Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, should all belong to the scope of protection of the invention.
As shown in Figure 1, test method on a kind of line of EPS decelerations mechanism assembly vibration noise, is accelerated using three-way vibration
The vibration signal of sensor acquisition deceleration mechanism and motor is spent, and is transmitted to data collector, which passes through
Vibration signal is transferred to processor after filter filtering, which analyzes its vibration signal to obtain noise source letter
Breath.
Test method of the present invention employs three-way vibration acceleration transducer cooperation data collector and wave filter, utilizes
Sensor is fixed on surface of shell by wax, and fixed wax can be selected the larger wax of adherence, be adsorbed in acceleration transducer bottom.
Automatically controlled ECU driving motors drive turbine and worm to be rotated with fixed rotating speed.Three-dimensional acceleration transducer is widely used, data acquisition
Device can be integrated in EPS producing line equipment, can also be taken separated from vibration noise collecting device as needed, according to EPS vibration rule
Rule can usually choose the vibration acceleration signal of test 0~2kHz ranges.Sensor arrangement point is located at turbine and worm on housing and nibbles
Near at conjunction, also close to motor, the vibration signal of the vibration and motor of turbine and worm in itself can be received simultaneously, more really
Reflect the vibration of EPS and noise source situation.
Concrete operations flow is as follows：
Default items acquisition parameter and motor driving parameter → by producing line requirement placement EPS decelerations mechanism assembly component → biography
Sensor bottom adds wax to stick together the pressing of (usually plus once can be recycled tens times) → sensor and be attached on housing (specifically to test
Point is determined according to product design, usually at worm screw outer housing) → start the operation EPS → acquisition of motor driver and finish, number
According to preservation.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection domain subject to.
Claims (6)
1. test method on a kind of line of EPS decelerations mechanism assembly vibration noise, which is characterized in that using three-way vibration acceleration
Sensor acquires the vibration signal of deceleration mechanism and motor, and is transmitted to data collector, which passes through filter
Vibration signal is transferred to processor after the filtering of wave device, which analyzes its vibration signal to obtain noise source information.
2. test method on a kind of line of EPS decelerations mechanism assembly vibration noise according to claim 1, feature exist
In the three-way vibration acceleration transducer is fixed on using wax on the housing of deceleration mechanism.
3. test method on a kind of line of EPS decelerations mechanism assembly vibration noise according to claim 1, feature exist
In the three-way vibration acceleration transducer is fixed on the housing of deceleration mechanism worm and gear.
4. test method on a kind of line of EPS decelerations mechanism assembly vibration noise according to claim 1, feature exist
In the three-way vibration acceleration transducer is fixed on the housing of motor.
5. test method on a kind of line of EPS decelerations mechanism assembly vibration noise according to claim 1, feature exist
In the three-way vibration acceleration transducer is fixed at the same time on the housing of turbine and worm and motor.
6. test method on a kind of line of EPS decelerations mechanism assembly vibration noise according to claim 1, feature exist
In, the vibration noise collecting device that the data collector is integrated in EPS equipment or is taken separated from, and vibrated according to EPS
Rule chooses the vibration acceleration signal of test 0~2kHz ranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206284.5A CN108240906A (en) | 2016-12-23 | 2016-12-23 | Test method on a kind of line of EPS decelerations mechanism assembly vibration noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206284.5A CN108240906A (en) | 2016-12-23 | 2016-12-23 | Test method on a kind of line of EPS decelerations mechanism assembly vibration noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240906A true CN108240906A (en) | 2018-07-03 |
Family
ID=62704026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611206284.5A Pending CN108240906A (en) | 2016-12-23 | 2016-12-23 | Test method on a kind of line of EPS decelerations mechanism assembly vibration noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337247A (en) * | 2020-03-27 | 2020-06-26 | 江苏莱纳德自动化设备有限公司 | Precision worm gear reducer testing equipment |
-
2016
- 2016-12-23 CN CN201611206284.5A patent/CN108240906A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337247A (en) * | 2020-03-27 | 2020-06-26 | 江苏莱纳德自动化设备有限公司 | Precision worm gear reducer testing equipment |
| CN111337247B (en) * | 2020-03-27 | 2021-10-26 | 六安江淮永达机械制造有限公司 | Precision worm gear reducer testing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180703 |
|
| WD01 | Invention patent application deemed withdrawn after publication |