CN102788014A - Gear oil pump tooth surface wearing fault diagnosis device and method - Google Patents
Gear oil pump tooth surface wearing fault diagnosis device and method Download PDFInfo
- Publication number
- CN102788014A CN102788014A CN2012102791268A CN201210279126A CN102788014A CN 102788014 A CN102788014 A CN 102788014A CN 2012102791268 A CN2012102791268 A CN 2012102791268A CN 201210279126 A CN201210279126 A CN 201210279126A CN 102788014 A CN102788014 A CN 102788014A
- Authority
- CN
- China
- Prior art keywords
- tooth surface
- surface abrasion
- noise
- oil pump
- gear oil
- Prior art date
- 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.)
- Granted
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a gear oil pump tooth surface wearing fault diagnosis device and a method. A gear oil pump is connected with a power unit through a power take-off shaft. The fault diagnosis device comprises a test part noise sensor, an interfering noise sensor, a signal collector connected with the noise sensors, a tooth surface wear-out fault parameter database, and an electric control unit respectively connected with the signal collector and the tooth surface wear-out fault parameter database. The electric control unit comprises a signal processing and parameter matching module and an alarm module. The signal processing and parameter matching module reads the tooth surface wear-out fault parameters from the database, processes the noise signals collected by the signal collector, and conducts tooth surface wear-out fault parameter matching. The alarm module gives an alarm according to the determined tooth surface wear-out fault. According to the gear oil pump tooth surface wearing fault diagnosis device, the parameter features which correspond to the tooth surface wear-out fault and are related with the noise signals are taken as the diagnosis basis for diagnosing the tooth surface wear-out fault, and precise fault diagnosis of the tooth surface wear-out fault can be realized without carrying out direct measurement to the interior of the oil pump.
Description
Technical field
The present invention relates to fault diagnosis technology, relate in particular to a kind of gear oil pump tooth surface abrasion trouble-shooter and method.
Background technique
Drive form for the oil hydraulic pump of crane; The oil hydraulic pump of crane (for example simply connected gear oil pump or nest oil pump) drives running by other power units (for example motor), and the four-gear block oil pump is connected with the power taking axle through fixing device.When the operation of needs oil pump, the power taking axle is articulated on the four-gear block oil pump, drive the work of four-gear block oil pump by the power taking axle, and the combination through clutch and break off the working condition of controlling the four-gear block oil pump.Power unit has outside housing, and power unit also has the cooling mechanism that is provided with at the end away from the power taking axle.
Gear oil pump may produce when running up because of the flank of tooth and collide formed noise; This noise causes owing to wearing and tearing appear in the pump internal gear through looking into mainly; But because tooth surface abrasion occurs in oil pump inside; Can't directly measure, can only listen the running noise of pump to carry out fault judgement through experience with operator at present.And tooth surface abrasion maybe be by various foozles, and for example factors such as gear surface roughness, tooth profile error and heat treatment deformation cause, fault mode is complicated, and the judgement validity that therefore only depends on people's ear to listen attentively to carry out fault mode is lower.
Summary of the invention
The objective of the invention is to propose a kind of gear oil pump tooth surface abrasion trouble-shooter and method, can be more accurately to the tooth surface abrasion diagnosing malfunction of gear oil pump.
For realizing above-mentioned purpose, the invention provides a kind of gear oil pump tooth surface abrasion trouble-shooter, said gear oil pump is connected with power unit through the power taking axle, and wherein said gear oil pump tooth surface abrasion trouble-shooter comprises:
Be arranged in said gear oil pump unit under test noise transducer on every side;
Be arranged in said power unit interference noise sensor on every side;
The signal picker that links to each other with the interference noise sensor with said unit under test noise transducer respectively;
The tooth surface abrasion fault parameter database of the tooth surface abrasion fault parameter that record is measured in advance;
The ECU that links to each other with tooth surface abrasion fault parameter database with said signal picker respectively;
Said ECU comprises:
Read the tooth surface abrasion fault parameter from said tooth surface abrasion fault parameter database, and signal processing and parameter matching module that the noise signal that said signal picker collects is handled and carried out tooth surface abrasion fault parameter coupling;
Carry out the Alarm module of alarm operation according to the tooth surface abrasion fault of confirming.
Further, said interference noise sensor comprise around the cooling mechanism that is arranged on said power unit power unit heat radiation noise transducer be arranged on the axial power taking axle of said power taking noise transducer.
Further, said ECU also comprises:
The fault test module; Through removing that interference noise is handled and tooth surface abrasion noise signal, corresponding tooth surface abrasion noise frequency, sound pressure level and loudness level are confirmed in the failure frequency analysis, and deposit said tooth surface abrasion fault parameter database in as the tooth surface abrasion fault parameter.
Further, between said power unit, gear oil pump and power taking axle, be provided with sound-absorbing partition or sound absorption cotton.
For realizing above-mentioned purpose, the invention provides a kind of gear oil pump tooth surface abrasion method for diagnosing faults based on aforesaid gears oil pump tooth surface abrasion trouble-shooter, comprising:
Under the mode of operation of said gear oil pump, ECU receive signal picker from unit under test noise transducer and interference noise sensor acquisition to noise signal;
Said ECU is removed interfering noise signal to the noise signal that receives and is handled;
Said ECU is confirmed the pairing noise frequency of noise signal, sound pressure level and loudness level that said gear oil pump is actual to carrying out the failure frequency analysis through the noise signal of removing the interfering noise signal processing;
Said ECU reads the tooth surface abrasion fault parameter from tooth surface abrasion fault parameter database, and said tooth surface abrasion fault parameter and sound pressure level and the loudness level confirmed are mated, and determines whether to take place the tooth surface abrasion fault;
If confirm to occur the tooth surface abrasion fault, then carry out alarm operation.
Further, said interference noise sensor comprise around the cooling mechanism that is arranged on said power unit power unit heat radiation noise transducer be arranged on the axial power taking axle of said power taking noise transducer.
Further, also comprise:
Under the fault test pattern of said gear oil pump, ECU receives the noise signal that signal picker collects from unit under test noise transducer, power unit heat radiation noise transducer and power taking axle noise transducer;
Said ECU is removed the interfering noise signal processing according to noise signal that receives and the corresponding respectively frequency order of the cooling mechanism of predetermined said power unit, said power taking axle and said gear oil pump;
Said ECU is confirmed the pairing tooth surface abrasion noise frequency of tooth surface abrasion noise signal, sound pressure level and the loudness level of said gear oil pump to carrying out the failure frequency analysis through the tooth surface abrasion noise signal of removing the interfering noise signal processing;
Said ECU deposits said tooth surface abrasion noise signal, corresponding tooth surface abrasion noise frequency, sound pressure level and loudness level in said tooth surface abrasion fault parameter database as the tooth surface abrasion fault parameter.
Further, the frequency order that the cooling mechanism of said power unit, said power taking axle and said gear oil pump are corresponding is respectively confirmed by the standard shaft rotating speed and the number of teeth.
Further, the operation of said removal interfering noise signal processing comprises:
Noise signal to receiving is carried out Fourier transform, obtains corresponding noise frequency figure;
Frequency order according to the cooling mechanism of predetermined said power unit, said power taking axle and said gear oil pump are corresponding is respectively confirmed the pairing peak value of interference noise in said noise frequency figure; And carry out the removal of interfering noise signal according to the peak value of confirming, obtain the actual noise signal of gear oil pump.
Further, the corresponding sound pressure level of said tooth surface abrasion noise signal is confirmed by the tested acoustic pressure of confirming according to said tooth surface abrasion noise signal and the ratio of the reference acoustic pressure of presetting; The corresponding loudness level of said tooth surface abrasion noise signal combines contour of equal loudness to confirm by said tooth surface abrasion noise signal corresponding tooth surface abrasion noise frequency and sound pressure level.
Based on technique scheme; The present invention monitors the noise around gear oil pump and the power unit; And handle according to the noise signal that monitors; So that mate, to confirm the tooth surface abrasion fault whether occurs in the work at present process with the tooth surface abrasion fault parameter in the tooth surface abrasion fault parameter database that prestores.The present invention utilizes the pairing parameter attribute relevant with noise signal of tooth surface abrasion fault as tooth surface abrasion Fault Diagnosis foundation, need directly not measure oil pump inside, realizes accurate tooth surface abrasion fault diagnosis.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is an embodiment's of gear oil pump tooth surface abrasion trouble-shooter of the present invention structural representation.
Fig. 2 is an embodiment's of gear oil pump tooth surface abrasion method for diagnosing faults of the present invention schematic flow sheet.
Fig. 3 is the schematic flow sheet under the fault test pattern among another embodiment of gear oil pump tooth surface abrasion method for diagnosing faults of the present invention.
Embodiment
Through accompanying drawing and embodiment, technological scheme of the present invention is done further detailed description below.
As shown in Figure 1, be an embodiment's of gear oil pump tooth surface abrasion trouble-shooter of the present invention structural representation.In the present embodiment, gear oil pump 3 is connected with power unit 1 through power taking axle 2, and wherein power unit 1 has cooling mechanism 7.Gear oil pump tooth surface abrasion trouble-shooter comprises a plurality of sensors; Wherein gear oil pump 3 is as unit under test; Be arranged in gear oil pump 3 noise transducer on every side and be called as unit under test noise transducer s1; And other are arranged in the noise transducer around the power unit, because what gather is the interference noise outside the noise of gear oil pump 3, therefore in this paper, are called as the interference noise sensor.
In a specific embodiment, the interference noise sensor can comprise the power unit heat radiation noise transducer s2 around the cooling mechanism 7 that is arranged on power unit 1 and be arranged on power taking axle 2 power taking axle noise transducer s3 (as shown in Figure 1) on every side.
Noise transducer generally will be arranged on the position of the certain distance (for example 30cm, 35cm, 40cm etc.) of UUT itself, and avoids extraneous wind direction as far as possible, and can not directly be attached on the UUT.
Top these sensors of introducing have constituted the signal acquiring system of gear oil pump tooth surface abrasion pattern trouble-shooter of the present invention; The designer can be according to actual needs carries out accommodation to wherein sensor present position, sensor type, sensor number etc., to satisfy the fault diagnosis needs under dissimilar equipment, the different operating mode.
These signals all can gather through signal picker 4, can see that from Fig. 1 the noise signal that unit under test noise transducer s1 and interference noise sensor (for example heat radiation noise transducer s2 of the power unit among Fig. 1 and power taking axle noise transducer s3) are monitored all has been input to signal picker 4.
Trouble-shooter of the present invention is except sensor and signal picker; Also comprise tooth surface abrasion fault parameter database and ECU; Wherein tooth surface abrasion fault parameter database is used for writing down the tooth surface abrasion fault parameter of measuring in advance, and ECU comprises signal processing and parameter matching module and Alarm module.Signal processing and parameter matching module can read the tooth surface abrasion fault parameter from tooth surface abrasion fault parameter database, and the noise signal that signal picker collects is handled and carried out tooth surface abrasion fault parameter coupling.Alarm module can be carried out alarm operation according to the tooth surface abrasion fault of confirming.
On hardware was realized, Fig. 1 had provided a kind of way of realization, the function of automatically controlled disposable plates 5 is integrated tooth surface abrasion fault parameter database and signal processing and parameter matching module, and the function of alarming processing plate 6 responsible Alarm modules.Alarming processing plate 6 can pass through warning forms such as sound, light and remind operator, or transmits warning message enterprising knowledge that works to system platform or operator's terminal through the mode of wire/wireless.
In order to make the tooth surface abrasion Fault Diagnosis more accurate; Tooth surface abrasion fault parameter in its tooth surface abrasion fault parameter database should compare the typical case; Can embody the actual conditions of noise relevant parameter under the tooth surface abrasion; In order to access such tooth surface abrasion fault parameter; In another embodiment of gear oil pump tooth surface abrasion trouble-shooter of the present invention; Can in ECU, set up the fault test module, this fault test module can cross remove that interference noise is handled and the failure frequency analysis confirm tooth surface abrasion noise signal, corresponding tooth surface abrasion noise frequency, sound pressure level and loudness level (concrete handle with computational process referring to after method for diagnosing faults embodiment in the literary composition), and the above-mentioned numerical value that will obtain deposits said tooth surface abrasion fault parameter database in as the tooth surface abrasion fault parameter.
No matter be fault test pattern or mode of operation; Sensor noise is easy to receive unit under test other The noise on every side; And then bring certain interference to measurement signal; In order to reduce this interference as far as possible, can between power unit 1, gear oil pump 3 and power taking axle 2, sound-absorbing partition be set or absorb sound cotton (not shown).
Embodiment based on foregoing various gear oil pump tooth surface abrasion trouble-shooters describes gear oil pump tooth surface abrasion method for diagnosing faults of the present invention below.
As shown in Figure 2, be an embodiment's of gear oil pump tooth surface abrasion method for diagnosing faults of the present invention schematic flow sheet.In the present embodiment, fault diagnosis flow scheme comprises:
If step 106 confirms to occur the tooth surface abrasion fault, then carry out alarm operation.
In failure diagnostic process; Mixing noise signal and the sink of power unit and the noise signal that the power taking axle is produced that gear oil pump self is produced in the noise signal that signal picker collected; Wherein the noise signal that produced of the sink of power unit and power taking axle need be removed in follow-up analysis as interfering noise signal, to increase the validity of fault diagnosis.
Removal interfering noise signal in the step 102 is handled operation and can be may further comprise the steps: the noise signal to receiving is carried out Fourier transform, obtains corresponding noise frequency figure; Frequency order according to the cooling mechanism of predetermined said power unit, said power taking axle and said gear oil pump are corresponding is respectively confirmed the pairing peak value of interference noise in said noise frequency figure; And carry out the removal of interfering noise signal according to the peak value of confirming, obtain the actual noise signal of gear oil pump.
The cooling mechanism of power unit, power taking axle and gear oil pump all belong to rotating machinery, and according to the rotating machinery fault frequency method, the noise frequency that these parts produced is all relevant with the rotating speed of standard shaft; For gear oil pump; The power taking axle of driven gear oil pump is as standard shaft, and its corresponding noise frequency is 1 * (1 rank), and the noise frequency that has a rotating machinery of tooth is the product of the standard shaft rotating speed and the number of teeth; In Fig. 1; The gear of gear oil pump has 10 teeth, and therefore corresponding noise frequency is 10 * (10 rank), and cooling mechanism has 12 teeth; Corresponding noise frequency is 12 * (12 rank), has so just confirmed the corresponding respectively frequency order (shown in each arrow of Fig. 1) of cooling mechanism, power taking axle and gear oil pump of power unit.
The noise signal of different frequency orders in noise pattern corresponding to different frequency peak; For instance; The rotating speed of power unit is 2100rpm; And the noise frequency of this rotating speed lower gear oil pump is 350Hz, corresponds on the spectrogram, and a peak value is then arranged in the position of 350Hz; And owing to mixed the interference noise that power unit self is produced in this noise signal; And this noise signal corresponds to the noise frequency that it produced in the spectrogram a little peak value is arranged in the position of 70Hz, therefore can the pairing noise signal of 70Hz be removed according to predetermined frequency order, obtains to have removed the actual noise signal of embodiment gear oil pump of interfering noise signal.
Next utilize failure frequency analytical method (comprising order tracking, Fourier transform and rotating machinery fault frequency method) to confirm the pairing noise frequency of noise signal, sound pressure level and loudness level that gear oil pump is actual; Wherein the front has been mentioned noise frequency and can be obtained spectrogram by rotating machinery fault frequency method and Fourier transform and confirm; And sound pressure level can be confirmed by the tested acoustic pressure of confirming according to noise signal and the ratio of the reference acoustic pressure of presetting, for example formula:
L
p=20lg(p/p
0)
Wherein, L
pBe sound pressure level, p is tested acoustic pressure, p
0Be reference acoustic pressure.
And loudness level can combine contour of equal loudness to confirm by noise signal corresponding noise frequency and sound pressure level by the corresponding loudness level of noise signal, wherein the relation of loudness S and loudness level Ls such as following formula:
S=2
(Ls-40)/10。
After confirming the gear oil pump actual pairing noise frequency of noise signal, sound pressure level and loudness level; ECU can read the tooth surface abrasion fault parameter from tooth surface abrasion fault parameter database; And tooth surface abrasion fault parameter and sound pressure level and the loudness level confirmed mated, confirm current whether the tooth surface abrasion fault to have taken place with this, if confirm to occur the tooth surface abrasion fault; Then carry out alarm operation, otherwise continue the monitoring noise signal.
As shown in Figure 3, be the schematic flow sheet under the fault test pattern among another embodiment of gear oil pump tooth surface abrasion method for diagnosing faults of the present invention.Compare with a last embodiment, in the present embodiment, the flow process under the fault test pattern comprises:
Under the fault test pattern, should select to confirm that the gear oil pump equipment that tooth surface abrasion takes place carries out fault test, after arranging sensor and acoustic isolation facility, starting device, signal picker begin the acquisition noise signal.
In this course, the operation of removing the interfering noise signal processing comprises: the noise signal to receiving is carried out Fourier transform, obtains corresponding noise frequency figure; Frequency order according to the cooling mechanism of predetermined said power unit, said power taking axle and said gear oil pump are corresponding is respectively confirmed the pairing peak value of interference noise in said noise frequency figure; And carry out the removal of interfering noise signal according to the peak value of confirming; Obtain the actual noise signal of gear oil pump, just the tooth surface abrasion noise signal.
After removing interfering noise signal; Obtain through removing the tooth surface abrasion noise signal that interfering noise signal is handled; Again through the failure frequency analysis; Can confirm the pairing tooth surface abrasion noise frequency of tooth surface abrasion noise signal, sound pressure level and the loudness level of gear oil pump, wherein the corresponding sound pressure level of tooth surface abrasion noise signal can be confirmed by the tested acoustic pressure of confirming according to said tooth surface abrasion noise signal and the ratio of the reference acoustic pressure of presetting; The corresponding loudness level of said tooth surface abrasion noise signal can combine contour of equal loudness to confirm by said tooth surface abrasion noise signal corresponding tooth surface abrasion noise frequency and sound pressure level.
After having confirmed tooth surface abrasion noise signal, corresponding information such as tooth surface abrasion noise frequency, sound pressure level and loudness level; ECU can deposit tooth surface abrasion noise signal, corresponding tooth surface abrasion noise frequency, sound pressure level and loudness level in tooth surface abrasion fault parameter database as the tooth surface abrasion fault parameter, uses in order to diagnosis tooth surface abrasion fault under the mode of operation.
The gear oil pump tooth surface abrasion trouble-shooter of introducing through the front of the present invention and the embodiment of method; Can find out that the present invention utilizes the pairing parameter attribute relevant with noise signal of tooth surface abrasion fault as tooth surface abrasion Fault Diagnosis foundation; Need directly not measure, can realize accurate tooth surface abrasion fault diagnosis oil pump inside.
Should be noted that at last: above embodiment is only in order to technological scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characteristics is equal to replacement; And not breaking away from the spirit of technological scheme of the present invention, it all should be encompassed in the middle of the technological scheme scope that the present invention asks for protection.
Claims (10)
1. gear oil pump tooth surface abrasion trouble-shooter, said gear oil pump is connected with power unit through the power taking axle, it is characterized in that, and said gear oil pump tooth surface abrasion trouble-shooter comprises:
Be arranged in said gear oil pump unit under test noise transducer on every side;
Be arranged in said power unit interference noise sensor on every side;
The signal picker that links to each other with the interference noise sensor with said unit under test noise transducer respectively;
The tooth surface abrasion fault parameter database of the tooth surface abrasion fault parameter that record is measured in advance;
The ECU that links to each other with tooth surface abrasion fault parameter database with said signal picker respectively;
Said ECU comprises:
Read the tooth surface abrasion fault parameter from said tooth surface abrasion fault parameter database, and signal processing and parameter matching module that the noise signal that said signal picker collects is handled and carried out tooth surface abrasion fault parameter coupling;
Carry out the Alarm module of alarm operation according to the tooth surface abrasion fault of confirming.
2. gear oil pump tooth surface abrasion trouble-shooter according to claim 1; It is characterized in that said interference noise sensor comprises the power unit heat radiation noise transducer around the cooling mechanism that is arranged on said power unit and is arranged on the axial power taking axle of said power taking noise transducer.
3. gear oil pump tooth surface abrasion trouble-shooter according to claim 1 is characterized in that said ECU also comprises:
The fault test module; Through removing that interference noise is handled and tooth surface abrasion noise signal, corresponding tooth surface abrasion noise frequency, sound pressure level and loudness level are confirmed in the failure frequency analysis, and deposit said tooth surface abrasion fault parameter database in as the tooth surface abrasion fault parameter.
4. according to the arbitrary described gear oil pump tooth surface abrasion trouble-shooter of claim 1 ~ 3, it is characterized in that, between said power unit, gear oil pump and power taking axle, be provided with sound-absorbing partition or sound absorption cotton.
5. the gear oil pump tooth surface abrasion method for diagnosing faults based on the arbitrary described gear oil pump tooth surface abrasion trouble-shooter of claim 1 ~ 4 is characterized in that, comprising:
Under the mode of operation of said gear oil pump, ECU receive signal picker from unit under test noise transducer and interference noise sensor acquisition to noise signal;
Said ECU is removed interfering noise signal to the noise signal that receives and is handled;
Said ECU is confirmed the pairing noise frequency of noise signal, sound pressure level and loudness level that said gear oil pump is actual to carrying out the failure frequency analysis through the noise signal of removing the interfering noise signal processing;
Said ECU reads the tooth surface abrasion fault parameter from tooth surface abrasion fault parameter database, and said tooth surface abrasion fault parameter and sound pressure level and the loudness level confirmed are mated, and determines whether to take place the tooth surface abrasion fault;
If confirm to occur the tooth surface abrasion fault, then carry out alarm operation.
6. gear oil pump tooth surface abrasion trouble-shooter according to claim 5; It is characterized in that said interference noise sensor comprises the power unit heat radiation noise transducer around the cooling mechanism that is arranged on said power unit and is arranged on the axial power taking axle of said power taking noise transducer.
7. gear oil pump tooth surface abrasion trouble-shooter according to claim 6 is characterized in that, also comprises:
Under the fault test pattern of said gear oil pump, ECU receives the noise signal that signal picker collects from unit under test noise transducer, power unit heat radiation noise transducer and power taking axle noise transducer;
Said ECU is removed the interfering noise signal processing according to noise signal that receives and the corresponding respectively frequency order of the cooling mechanism of predetermined said power unit, said power taking axle and said gear oil pump;
Said ECU is confirmed the pairing tooth surface abrasion noise frequency of tooth surface abrasion noise signal, sound pressure level and the loudness level of said gear oil pump to carrying out the failure frequency analysis through the tooth surface abrasion noise signal of removing the interfering noise signal processing;
Said ECU deposits said tooth surface abrasion noise signal, corresponding tooth surface abrasion noise frequency, sound pressure level and loudness level in said tooth surface abrasion fault parameter database as the tooth surface abrasion fault parameter.
8. gear oil pump tooth surface abrasion method for diagnosing faults according to claim 7 is characterized in that, the frequency order that the cooling mechanism of said power unit, said power taking axle and said gear oil pump are corresponding is respectively confirmed by the standard shaft rotating speed and the number of teeth.
9. gear oil pump tooth surface abrasion method for diagnosing faults according to claim 7 is characterized in that, the operation that said removal interfering noise signal is handled comprises:
Noise signal to receiving is carried out Fourier transform, obtains corresponding noise frequency figure;
Frequency order according to the cooling mechanism of predetermined said power unit, said power taking axle and said gear oil pump are corresponding is respectively confirmed the pairing peak value of interference noise in said noise frequency figure; And carry out the removal of interfering noise signal according to the peak value of confirming, obtain the actual noise signal of gear oil pump.
10. gear oil pump tooth surface abrasion method for diagnosing faults according to claim 7; It is characterized in that the corresponding sound pressure level of said tooth surface abrasion noise signal is confirmed by the tested acoustic pressure of confirming according to said tooth surface abrasion noise signal and the ratio of the reference acoustic pressure of presetting; The corresponding loudness level of said tooth surface abrasion noise signal combines contour of equal loudness to confirm by said tooth surface abrasion noise signal corresponding tooth surface abrasion noise frequency and sound pressure level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279126.8A CN102788014B (en) | 2012-08-08 | 2012-08-08 | Gear oil pump tooth surface wearing fault diagnosis device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210279126.8A CN102788014B (en) | 2012-08-08 | 2012-08-08 | Gear oil pump tooth surface wearing fault diagnosis device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788014A true CN102788014A (en) | 2012-11-21 |
| CN102788014B CN102788014B (en) | 2015-04-22 |
Family
ID=47153531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210279126.8A Expired - Fee Related CN102788014B (en) | 2012-08-08 | 2012-08-08 | Gear oil pump tooth surface wearing fault diagnosis device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788014B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566532A (en) * | 2021-09-23 | 2021-10-29 | 浙江长城搅拌设备股份有限公司 | Single-power screw hybrid drying equipment and detection method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109978048B (en) * | 2019-03-22 | 2021-05-07 | 大唐环境产业集团股份有限公司 | Fault analysis and diagnosis method for slurry circulating pump of desulfurizing tower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000064964A (en) * | 1998-08-21 | 2000-03-03 | Ebara Corp | Failure prediction system of vacuum pump |
| CN201527338U (en) * | 2009-11-10 | 2010-07-14 | 西安科技大学 | Portable coal mining machine gearbox testing diagnostic apparatus |
| CN102419252A (en) * | 2011-08-18 | 2012-04-18 | 黑龙江大学 | Optical fiber online type detection device of gear box of high-speed train |
| CN102449457A (en) * | 2009-04-02 | 2012-05-09 | 霍尼韦尔国际公司 | System and method for gearbox health monitoring |
| CN202732337U (en) * | 2012-08-08 | 2013-02-13 | 徐州重型机械有限公司 | Fault diagnosis device for tooth face wear of gear oil pump |
-
2012
- 2012-08-08 CN CN201210279126.8A patent/CN102788014B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000064964A (en) * | 1998-08-21 | 2000-03-03 | Ebara Corp | Failure prediction system of vacuum pump |
| CN102449457A (en) * | 2009-04-02 | 2012-05-09 | 霍尼韦尔国际公司 | System and method for gearbox health monitoring |
| CN201527338U (en) * | 2009-11-10 | 2010-07-14 | 西安科技大学 | Portable coal mining machine gearbox testing diagnostic apparatus |
| CN102419252A (en) * | 2011-08-18 | 2012-04-18 | 黑龙江大学 | Optical fiber online type detection device of gear box of high-speed train |
| CN202732337U (en) * | 2012-08-08 | 2013-02-13 | 徐州重型机械有限公司 | Fault diagnosis device for tooth face wear of gear oil pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566532A (en) * | 2021-09-23 | 2021-10-29 | 浙江长城搅拌设备股份有限公司 | Single-power screw hybrid drying equipment and detection method thereof |
| CN113566532B (en) * | 2021-09-23 | 2021-12-14 | 浙江长城搅拌设备股份有限公司 | Single-power screw hybrid drying equipment and detection method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102788014B (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202732337U (en) | Fault diagnosis device for tooth face wear of gear oil pump | |
| JP4101287B2 (en) | Machine health condition estimation method and apparatus by comparing two parts under the same load condition | |
| CN107101825B (en) | Engine truck gear-box and bearing running testing stand operation assessment device and method | |
| KR100522342B1 (en) | System for diagnosing facility apparatus, managing apparatus and diagnostic apparatus | |
| CN104697787A (en) | Gearbox test bed based on multi-information fusion and detection method thereof | |
| CN110779716A (en) | Embedded mechanical fault intelligent diagnosis equipment and diagnosis method | |
| EP2291617B1 (en) | Monitoring system for an assembly that is subject to vibrations | |
| CN201666248U (en) | Natural gas compressor state detection and failure predication system | |
| RU2013105453A (en) | MONITORING AND DIAGNOSTIC SYSTEM FOR THE MACHINERY SYSTEM BASED ON ENERGY OF A FUEL, AND ALSO THE MACHINE SYSTEM BASED ON POWER OF A FUEL | |
| CN102661389B (en) | Gearbox fault diagnosing device, gearbox fault diagnosing method and gearbox | |
| KR20090001432A (en) | Internet base online conditioning monitoring system | |
| CN101725706B (en) | Embedded-type condition monitoring and fault diagnosis system of gear cases | |
| CN204439348U (en) | A kind of wheel box test-bed based on Multi-information acquisition | |
| CN109416299A (en) | The method for identifying the failure in the gear train in wind turbine | |
| KR102545672B1 (en) | Method and apparatus for machine fault diagnosis | |
| CN102788014A (en) | Gear oil pump tooth surface wearing fault diagnosis device and method | |
| CN201965028U (en) | Running-in test diagnostic system of metro vehicle traveling part | |
| CN101452276A (en) | On-line monitoring method for running state of gear box of cold rolling and pickling drawing-correcting machine | |
| JP5461136B2 (en) | Plant diagnostic method and diagnostic apparatus | |
| CN107588802A (en) | Hoisting equipment reductor vibration monitor system and method based on fibre optical sensor | |
| US20130211665A1 (en) | Method for monitoring drive components in a large hydraulic excavator | |
| Zurita et al. | Intelligent sensor based on acoustic emission analysis applied to gear fault diagnosis | |
| CN102767517B (en) | Air-suction mode fault diagnostic device and method for gear oil pump | |
| CN202031825U (en) | Online monitoring device for equipment status of hot rolling descaling pump | |
| CN208383296U (en) | One kind being based on noise monitoring agricultural machinery failure system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 221001 Jiangsu city of Xuzhou Province Economic and Technological Development Zone of High Road No. 68 Patentee after: Xuzhou Heavy Machinery Co., Ltd. Address before: 221004 Xuzhou, Zhejiang Province, Jiangsu Road No. 165 Patentee before: Xuzhou Heavy Machinery Co., Ltd. |
|
| 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: 20150422 Termination date: 20190808 |