CN107677475B - Detection method for deflection detection of self-aligning roller bearing - Google Patents
Detection method for deflection detection of self-aligning roller bearing Download PDFInfo
- Publication number
- CN107677475B CN107677475B CN201711064910.6A CN201711064910A CN107677475B CN 107677475 B CN107677475 B CN 107677475B CN 201711064910 A CN201711064910 A CN 201711064910A CN 107677475 B CN107677475 B CN 107677475B
- Authority
- CN
- China
- Prior art keywords
- roller bearing
- aligning roller
- self
- deflection
- detection
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 81
- 230000002159 abnormal effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 2
- 208000012661 Dyskinesia Diseases 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011895 specific detection Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- G01M13/04—Bearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a special detection tool for deflection detection of a self-aligning roller bearing, which comprises a detection ruler with a flat side surface and an inclined side surface, wherein the flat side surface and the inclined side surface are oppositely arranged to form a wedge-shaped section, the inclined side surface is provided with scales, and the numerical value of the scales represents the thickness of the wedge-shaped section. The invention also discloses a detection method for detecting deflection of the wind power main shaft aligning roller bearing, which can conveniently evaluate whether the aligning roller bearing has abnormal motion or not by utilizing the special detection tool to measure the deflection of the inner ring and the outer ring of the bearing at different circumferential positions of the wind power main shaft aligning roller bearing and then comparing and connecting the measurement results, thereby achieving the purposes of finding faults in advance and avoiding risks in time.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a special detection tool and a detection method for deflection detection of a self-aligning roller bearing.
Background
The main shaft transmission chain system of the wind driven generator adopts various structures, wherein a self-aligning roller bearing is used as a supporting system of a double-bearing structure, and the main shaft transmission chain system is a common type of selection in the wind power industry at present. One end of the double-bearing system is a floating bearing which only receives radial load, and the other end is a thrust bearing which receives all axial load and radial load. In practical engineering applications, bearing failure at one end of the thrust bearing often occurs.
The bearing often accompanies the abnormality of running state before the inefficacy, if can discover the unusual motion of bearing in advance, take measures in time, just can be fine avoid unusual motion to lead to the bearing inefficacy.
On the basis of the method, a special detection tool and a detection method for deflection detection of the self-aligning roller bearing are created, so that whether abnormal movement exists in the bearing can be detected, and the aim of avoiding risks in advance is fulfilled.
Disclosure of Invention
The invention aims to provide a special detection tool for detecting deflection of a self-aligning roller bearing, which can be used for measuring the deflection of the self-aligning roller bearing and providing a reliable basis for further evaluating whether abnormal motion exists in the self-aligning roller bearing.
In order to solve the technical problems, the invention provides a special detection tool for deflection detection of a self-aligning roller bearing, which is a detection ruler comprising a flat side surface and an inclined side surface, wherein the flat side surface and the inclined side surface are oppositely arranged to form a wedge-shaped section of the detection tool, and scales are arranged on the inclined side surface.
As an improvement of the invention, the numerical value of the scale represents the thickness of the wedge segment.
Further improved, the end of the detection tool opposite to the end of the wedge-shaped section is a square end.
The invention further aims to provide a detection method for deflection detection of the wind power main shaft aligning roller bearing, so that whether abnormal motion exists in the bearing is finally assessed through measuring deflection values of different positions of the bearing, and therefore faults are found in advance, and the purpose of avoiding risks is achieved.
In order to solve the technical problems, the invention provides a detection method for deflection detection of a wind power main shaft aligning roller bearing, which comprises the following steps:
(1) Setting a plurality of groups of detection positions along the circumferential direction of the self-aligning roller bearing of the wind power main shaft, and numbering; wherein each group of detection positions are two symmetrical positions taking the axle center of the self-aligning roller bearing as the center;
(2) Measuring the deflection of the inner race and the outer race of the self-aligning roller bearing by using the special detection tool at the numbered positions in the step (1), and recording the readings of the special detection tool at the corresponding position numbers;
(3) Connecting the serial number position corresponding to the maximum value and the serial number position corresponding to the minimum value in the reading result recorded in the step (2), and if the connecting line passes through the axle center of the self-aligning roller bearing and the reading values at the serial numbers of the positions which are symmetrical on two sides with the connecting line as the center are equal, indicating that the self-aligning roller bearing belongs to self-aligning deflection; if the connecting line does not pass through the axle center of the self-aligning roller bearing and the reading values at the position numbers symmetrical on two sides by taking the connecting line as the center are not equal, the self-aligning roller bearing is indicated to belong to non-self-aligning deflection.
As an improvement of the detection method of the present invention, the method for measuring deflection of the inner race and the outer race of the self-aligning roller bearing by using the special detection tool in the step (2) comprises: removing an outer sealing ring of the self-aligning roller bearing of the wind power main shaft, flatly attaching a flat side surface of the special detection tool to a side surface of an outer ring of the bearing, flatly pushing a wedge-shaped section of the special detection tool into a gap between the inner sealing ring and the outer ring of the bearing, reading a scale value on the special detection tool, and subtracting an axial play value of the self-aligning roller bearing from the scale value to obtain the deflection of the inner ring and the outer ring of the self-aligning roller bearing.
Further improved, the detection method further comprises: and comparing the connecting line with the axial center position of the self-aligning roller bearing, and judging the abnormal deflection direction of the self-aligning roller bearing.
With such a design, the invention has at least the following advantages:
1. According to the basic structure of the self-aligning roller bearing, the detection of the deflection of the inner ring and the outer ring of the self-aligning roller bearing of the wind power main shaft can be conveniently and rapidly realized by arranging the wedge-shaped section detection ruler with scales, the structure is simple, the operation is convenient, and the support for the deflection detection of the self-aligning roller bearing of the wind power main shaft is favorable.
2. According to the detection method, the circumferential positions of the bearings are respectively measured by using the special detection tool, and whether abnormal movement exists in the self-aligning roller bearing or not can be conveniently assessed according to comparison and connection of measurement results, so that the purposes of finding faults in advance and avoiding risks in time are achieved.
Drawings
The foregoing is merely an overview of the present invention, and the present invention is further described in detail below with reference to the accompanying drawings and detailed description.
FIG. 1 is a side view of the construction of a special detection tool for use in the deflection detection of a self-aligning roller bearing of the present invention.
Fig. 2 is a front view of the structure of the special detection tool for deflection detection of the aligning roller bearing of the present invention.
FIG. 3 is a schematic illustration of the application of the special inspection tool of the present invention for inspecting deflection of a self-aligning roller bearing.
Detailed Description
The invention aims at the improvement of overhaul of a self-aligning roller bearing, and the basic principle is as follows: if the inner ring or the outer ring of the bearing is not centered or eccentric to a certain extent, the deflection can be adapted through the spherical rotation between the roller and the roller path, at the moment, the inner ring and the outer ring can rotate relatively to a certain extent, the rotation is spherical rotation, the normal aligning movement is realized, and at the moment, the deflection dimension of the inner ring and the outer ring of the bearing is symmetrical along a certain diameter direction of the bearing; if the inner ring and the outer ring of the bearing deflect in a non-aligning way, the deflection dimension of the inner ring and the outer ring cannot be symmetrical along a certain diameter, and abnormal movement can be generated when the bearing runs, so that the bearing is damaged. According to the principle, the special detection tool can be used for detecting the deflection of the inner ring and the outer ring of the self-aligning roller bearing of the wind power main shaft, and can be used for evaluating whether the inner ring and the outer ring of the bearing are deflected in a non-self-aligning way. The specific special detection tool and detection method are as follows:
Referring to fig. 1 and 2, the special detection tool for deflection detection of the aligning roller bearing of the present embodiment is a detection ruler comprising a flat side 1 and an inclined side 2, wherein the flat side 1 and the inclined side 2 are oppositely arranged to form a wedge section 3 of the detection tool, and the end of the detection tool opposite to the end of the wedge section 3 is a square end 4.
Moreover, the inclined side surface 2 is provided with a scale, the numerical value of the scale represents the thickness of the wedge-shaped section 3, so that the width of a gap, namely the deflection of the inner ring and the outer ring of the bearing can be measured by reading the scale value in use, and the processing of the detection tool needs to be processed according to a special measuring tool standard.
The special detection tool is specially used for detecting the deflection of the inner ring and the outer ring of the wind power main shaft aligning roller bearing, and the specific detection method comprises the following steps: referring to fig. 3, the outer seal ring of the self-aligning roller bearing of the wind power main shaft 9 is removed, and the outer seal ring is arranged between the bearing seat 5 and the inner seal ring 7, and is removed in the drawing. The flat side surface 1 of the special detection tool 10 is flatly attached to the side surface of the bearing outer ring 6, when the inner ring and the outer ring of the bearing do not deflect and the bearing does not axially move, the inner sealing ring 7 of the bearing is higher than the inner ring 8 of the bearing, when the detection tool 10 is flatly attached to the exposed surface of the bearing outer ring 6, the lower end of the detection tool 10 just abuts against the end surface of the inner sealing ring 7, the scale reading is 0, when the inner ring and the outer ring deflect, the wedge-shaped end of the detection tool 10 can extend into a gap between the inner sealing ring 7 and the bearing outer ring 6, the scale on the detection tool 10 at the edge of the inner sealing ring 7 is read, namely the relative deflection of the inner ring and the outer ring, and the axial play value of the self-aligning roller bearing is subtracted from the scale value, so that the deflection of the inner ring and the outer ring of the self-aligning roller bearing is obtained.
By using the detection method, whether the wind power main shaft aligning roller bearing has abnormal deflection or not can be detected, and the specific detection method comprises the following steps:
(1) Setting a plurality of groups of detection positions along the circumferential direction of the self-aligning roller bearing of the wind power main shaft, and numbering; wherein each group of detection positions are two symmetrical positions taking the axle center of the self-aligning roller bearing as the center;
(2) Measuring the deflection of the inner ring and the outer ring of the self-aligning roller bearing by using the special detection tool at the numbered positions in the step (1), and recording the readings of the special detection tool at the corresponding position numbers;
(3) Connecting the serial number position corresponding to the maximum value and the serial number position corresponding to the minimum value in the reading result recorded in the step (2), and if the connecting line passes through the axle center of the self-aligning roller bearing and the reading values at the serial numbers of the positions which are symmetrical on two sides by taking the connecting line as the center are equal, indicating that the self-aligning roller bearing belongs to self-aligning deflection, and indicating that the bearing is free from abnormality; if the connecting line does not pass through the axle center of the self-aligning roller bearing and the reading values at the position numbers symmetrical on two sides of the connecting line by taking the connecting line as the center are not equal, the self-aligning roller bearing is indicated to belong to non-self-aligning deflection, the abnormal movement of the bearing is indicated, and maintenance staff is reminded to take measures to prevent the bearing from being invalid due to abnormal stress.
And, the detection method further comprises: and comparing the connecting line with the axial center position of the self-aligning roller bearing to judge the abnormal deflection direction of the self-aligning roller bearing.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present invention.
Claims (5)
1. The detection method for wind power main shaft aligning roller bearing deflection detection is characterized by comprising the following steps of:
(1) Setting a plurality of groups of detection positions along the circumferential direction of the self-aligning roller bearing of the wind power main shaft, and numbering; wherein each group of detection positions are two symmetrical positions taking the axle center of the self-aligning roller bearing as the center;
(2) Measuring deflection of an inner race and an outer race of the self-aligning roller bearing by using a special detection tool at the numbered positions in the step (1), and recording readings of the special detection tool at the corresponding position numbers;
The special detection tool is a detection ruler comprising a flat side surface and an inclined side surface, wherein the flat side surface and the inclined side surface are oppositely arranged to form a wedge-shaped section of the detection tool, and scales are arranged on the inclined side surface;
(3) Connecting the serial number position corresponding to the maximum value and the serial number position corresponding to the minimum value in the reading result recorded in the step (2), and if the connecting line passes through the axle center of the self-aligning roller bearing and the reading values at the serial numbers of the positions which are symmetrical on two sides with the connecting line as the center are equal, indicating that the self-aligning roller bearing belongs to self-aligning deflection; if the connecting line does not pass through the axle center of the self-aligning roller bearing and the reading values at the position numbers symmetrical on two sides by taking the connecting line as the center are not equal, the self-aligning roller bearing is indicated to belong to non-self-aligning deflection.
2. The method for detecting deflection of a wind power main shaft aligning roller bearing according to claim 1, wherein the method for measuring deflection of an inner race and an outer race of the aligning roller bearing by using the dedicated detection tool in the step (2) is as follows: removing an outer sealing ring of the self-aligning roller bearing of the wind power main shaft, flatly attaching a flat side surface of the special detection tool to the side surface of the outer ring of the bearing, flatly pushing a wedge-shaped section of the special detection tool into a gap between the inner sealing ring and the outer ring of the bearing, reading a scale value on the special detection tool, and subtracting an axial play value of the self-aligning roller bearing from the scale value to obtain the deflection of the inner ring and the outer ring of the self-aligning roller bearing.
3. The detection method for wind power main shaft aligning roller bearing deflection detection according to claim 2, characterized in that the detection method further comprises: and comparing the connecting line with the axial center position of the self-aligning roller bearing, and judging the abnormal deflection direction of the self-aligning roller bearing.
4. The method for detecting deflection of a wind power main shaft aligning roller bearing according to claim 1, wherein a numerical value of the scale represents a thickness of the wedge segment.
5. The method for detecting deflection of a wind power main shaft aligning roller bearing according to claim 4, wherein an end of the detecting tool opposite to the wedge segment end is a square end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711064910.6A CN107677475B (en) | 2017-11-02 | 2017-11-02 | Detection method for deflection detection of self-aligning roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711064910.6A CN107677475B (en) | 2017-11-02 | 2017-11-02 | Detection method for deflection detection of self-aligning roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107677475A CN107677475A (en) | 2018-02-09 |
| CN107677475B true CN107677475B (en) | 2024-09-13 |
Family
ID=61144868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711064910.6A Active CN107677475B (en) | 2017-11-02 | 2017-11-02 | Detection method for deflection detection of self-aligning roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107677475B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806571A (en) * | 2010-03-31 | 2010-08-18 | 欧俊 | Safety tongs clearance measurement scale |
| CN202092572U (en) * | 2011-05-08 | 2011-12-28 | 山西太钢不锈钢股份有限公司 | Detection tool of vehicle scale limiting point |
| CN102818504A (en) * | 2012-08-22 | 2012-12-12 | 贵州航天红光机械制造有限公司 | Novel plug ruler for measuring gap |
| CN203011330U (en) * | 2013-01-15 | 2013-06-19 | 中国石油化工股份有限公司 | A motor-pump concentricity measuring gauge |
| CN203037183U (en) * | 2013-01-04 | 2013-07-03 | 沪东中华造船(集团)有限公司 | Ruler for boat inspection |
| CN207439677U (en) * | 2017-11-02 | 2018-06-01 | 国电联合动力技术有限公司 | For the special detection tool of self-aligning roller bearing deflection detection |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4174955B2 (en) * | 2000-05-17 | 2008-11-05 | 日本精工株式会社 | Device for measuring radial clearance of rolling bearings |
| JP2009074679A (en) * | 2007-08-30 | 2009-04-09 | Nsk Ltd | Self-aligning roller bearing |
| CN201297911Y (en) * | 2008-10-29 | 2009-08-26 | 谭进军 | Device for checking axial clearance of double-row tapered roller bearing |
| JP6119227B2 (en) * | 2012-12-12 | 2017-04-26 | 株式会社ジェイテクト | Bearing roller state detecting device, roller bearing device with sensor, and wind power generator |
| CN103208888A (en) * | 2013-04-11 | 2013-07-17 | 广东明阳风电产业集团有限公司 | Detection and maintenance method for self-aligning roller bearing of spindle of wind driven generator and jacking tool |
| CN107036507B (en) * | 2017-05-27 | 2023-03-31 | 深圳智慧能源技术有限公司 | Cylindrical roller bearing clearance measuring tool and measuring method |
-
2017
- 2017-11-02 CN CN201711064910.6A patent/CN107677475B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806571A (en) * | 2010-03-31 | 2010-08-18 | 欧俊 | Safety tongs clearance measurement scale |
| CN202092572U (en) * | 2011-05-08 | 2011-12-28 | 山西太钢不锈钢股份有限公司 | Detection tool of vehicle scale limiting point |
| CN102818504A (en) * | 2012-08-22 | 2012-12-12 | 贵州航天红光机械制造有限公司 | Novel plug ruler for measuring gap |
| CN203037183U (en) * | 2013-01-04 | 2013-07-03 | 沪东中华造船(集团)有限公司 | Ruler for boat inspection |
| CN203011330U (en) * | 2013-01-15 | 2013-06-19 | 中国石油化工股份有限公司 | A motor-pump concentricity measuring gauge |
| CN207439677U (en) * | 2017-11-02 | 2018-06-01 | 国电联合动力技术有限公司 | For the special detection tool of self-aligning roller bearing deflection detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107677475A (en) | 2018-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9470262B2 (en) | Bearing arrangement and method | |
| US20130177417A1 (en) | Ice detection method and system for wind turbine blades | |
| CN106482627B (en) | A kind of testing stand and method for being used to measure bearing Radial windage | |
| US9032807B2 (en) | Method and system for monitoring bending strains of wind turbine blades | |
| CN201273802Y (en) | Roller conveyer position measurement apparatus for large pivoting support bearing | |
| DK3208571T3 (en) | Device for measuring bearing | |
| US12071984B2 (en) | Rolling bearing with monitoring device | |
| CN106461479A (en) | Component having a measuring element with at least one sensor | |
| Han et al. | An experimental study on the performance and fatigue life of pitch bearing for wind turbine | |
| CN107677475B (en) | Detection method for deflection detection of self-aligning roller bearing | |
| US10324003B2 (en) | Detection of fretting and/or smearing with false-brinelling potential | |
| CN107327474B (en) | Tilting pad thrust bearing capable of detecting axial force of rotary machine | |
| CN106441887B (en) | The measurement method of contact load between a kind of turntable bearing rolling element and outer ring raceway | |
| CN207439677U (en) | For the special detection tool of self-aligning roller bearing deflection detection | |
| CN202101655U (en) | Large ball bearing measuring instrument | |
| CN1554923A (en) | Measuring device and method of axial backlash in double row taper roll bearing having inner and outer spacer ring | |
| CN104374511A (en) | Device and method for measuring radial force of rotor bearing of three-phase induction motor | |
| CN102954775A (en) | Method for measuring radial run-out of outer circle of self-aligning roller bearing | |
| CN117006938A (en) | Double-row tapered roller bearing roller inclination angle distribution testing method | |
| CN212622394U (en) | High-precision pipeline defect detection equipment based on magnetic leakage | |
| CN115111368A (en) | Intelligent graphite sealing device | |
| RU199131U1 (en) | A device for measuring the forces acting on the rotor support of a gas turbine engine using dynamic strain gauge | |
| CN220649311U (en) | Roller inner compound circle diameter detection device of cylindrical roller bearing without inner ring | |
| CN212722725U (en) | Special device for online monitoring system of thrust bearing of pumped storage unit | |
| CN113701977B (en) | Method and system for measuring maximum value of relative vibration of rotor in all directions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |