CN220230351U - Axial runout detection mechanism for variable-pitch bearing of wind generating set - Google Patents
Axial runout detection mechanism for variable-pitch bearing of wind generating set Download PDFInfo
- Publication number
- CN220230351U CN220230351U CN202321984160.5U CN202321984160U CN220230351U CN 220230351 U CN220230351 U CN 220230351U CN 202321984160 U CN202321984160 U CN 202321984160U CN 220230351 U CN220230351 U CN 220230351U
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- China
- Prior art keywords
- dial indicator
- extension piece
- variable
- pitch bearing
- generating set
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a variable-pitch bearing axial runout detection mechanism for a wind generating set, which comprises a dial indicator, wherein the dial indicator is arranged on a dial indicator clamp, the dial indicator clamp comprises a fixing bolt and a fixing base connected to the fixing bolt through a fixing nut, a clamping part is constructed on the fixing base, the dial indicator is clamped on the clamping part, the bottom of the dial indicator is further connected with an extension piece, and one end of the extension piece is connected with a dial indicator measuring head. According to the axial runout detection mechanism for the variable-pitch bearing of the wind generating set, through the designed extension piece, the fixed rigidity of the dial indicator is ensured, the phenomenon that the measuring head of the dial indicator is collided by blades in the measuring process is avoided, the detection time is greatly shortened, the labor intensity is reduced, the detection accuracy is ensured, the working efficiency is improved, the consumption of labor cost is reduced, the risk that the dial indicator is crashed is reduced, and the measuring range is improved through the extension piece.
Description
Technical Field
The utility model relates to the technical field of oil level gauges of hydroelectric generating sets, in particular to a detection mechanism for axial runout of a variable-pitch bearing of a wind generating set.
Background
At present, the conventional detection method for detecting the axial runout of the rotary bearing adopts a dial indicator to measure, the dial indicator is adsorbed on the fixed end of equipment through a magnetic attraction seat, and the dial indicator is placed on a magnetic attraction seat bracket to measure. For the variable pitch bearing of the wind generating set, because the variable pitch bearing is arranged in the tower top wind wheel, the space is narrow, the conventional magnetic attraction seat type measuring is greatly influenced by other factors, and the variable pitch bearing is often required to be installed for multiple times, and a group of tests can be completed after the measurement for multiple times. The axial runout value of 6 positions of three variable pitch bearings of one wind generating set needs to be measured, and the measurement of one set needs 2-3 days according to a conventional measurement method.
Conventional measurement methods: the magnetic attraction seat is adsorbed on the hub or the outer ring of the variable-pitch bearing, the connecting rod on the magnetic attraction seat is adjusted, the dial indicator is installed, the measuring direction of the dial indicator is parallel to the axis of the variable-pitch bearing, and then the related variable-pitch test is carried out. Because the surfaces of the hub and the variable-pitch bearing are curved surfaces, the magnetic attraction seat has limited attraction force, and the base can shake in the measurement process due to insufficient attraction force, so that the accuracy of the measurement result is affected; the joint connection is adopted at the connecting rod connection part on the magnetic attraction seat, so that the connection rigidity is relatively low, and the accuracy of a measurement result is also affected; the measurable position of the bearing is very narrow, and blade collision dial indicators often occur in the measuring process, so that the measurement fails; when the dial indicator is installed, whether the measuring direction of the dial indicator is parallel to the axial direction of the variable-pitch bearing can only be confirmed by visual inspection, and if the installation parallelism is poor, the accuracy of the measuring result can be seriously affected.
Therefore, the axial runout detection structure of the variable-pitch bearing of the wind generating set can be designed for measurement, the accuracy of the installation of the dial indicator is guaranteed, the collision of the blades to the dial indicator is avoided, the measurement accuracy is guaranteed, and the working efficiency is improved.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a variable-pitch bearing axial runout detection mechanism for a wind generating set, so that the problems in the prior art are solved, the detection is simple and convenient, the detection time is shortened, the detection working intensity is reduced, the dial indicator is protected from being collided by blades, the detection accuracy is improved, and the labor cost is reduced.
The technical purpose of the utility model is realized by the following technical scheme:
the utility model provides a be used for wind generating set variable pitch bearing axial to beat detection mechanism, includes the percentage table, still the percentage table is installed on the percentage table anchor clamps, the percentage table anchor clamps include fixing bolt and pass through fixation nut and connect the unable adjustment base on the fixing bolt, be constructed with clamping part on the unable adjustment base, the percentage table is in by the centre gripping on the clamping part, an extension piece is still connected to the percentage table bottom, the percentage table gauge head is connected to the one end of extension piece.
Preferably, the extension piece is connected to the dial indicator measuring rod through a bolt.
Preferably, the thickness of the extension piece is not less than 3mm.
Compared with the prior art, the utility model has the following beneficial effects:
according to the axial runout detection mechanism for the variable propeller bearing of the wind generating set, the fixed base is directly arranged on the variable propeller bearing, the dial indicator is fixed on the fixed base, the fixed rigidity of the dial indicator is guaranteed through the designed extension piece, the phenomenon that the measuring head of the dial indicator is collided by blades in the measuring process is avoided, the detection time is greatly shortened, the labor intensity is reduced, the detection accuracy is guaranteed, the labor cost consumption is reduced while the working efficiency is improved, the risk that the dial indicator is crashed is reduced, and the measuring range is improved through the extension piece.
Drawings
Fig. 1 is a schematic diagram illustrating an implementation state of an embodiment of the present utility model.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the above figures: 10. a dial indicator; 11. an extension piece; 12. a dial gauge head; 20. a dial gauge clamp; 21. a fixing bolt; 22. a fixing nut; 23. a fixed base; 24. a clamping part; B. a pitch bearing.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, as a preferred embodiment of the present utility model, the present embodiment provides a mechanism for detecting axial runout of a variable pitch bearing of a wind turbine generator, including a dial indicator 10, where the dial indicator 10 is mounted on a dial indicator fixture 20, the dial indicator fixture 20 includes a fixing bolt 21 and a fixing base 23 connected to the fixing bolt 21 by a fixing nut 22, a clamping portion 24 is configured on the fixing base 23, the dial indicator 10 is clamped on the clamping portion 24, an extension piece 11 is further connected to the bottom of the dial indicator 10, and one end of the extension piece 11 is connected to a dial indicator measuring head 12.
In use, as shown in fig. 2, a through hole at one end of the fixed base 23 is sleeved with the fixed bolt 21, the fixed bolt 21 is connected in a screw hole of the pitch bearing B, the fixed bolt 21 is screwed in by the fixed nut 22 to compress the fixed base 23, and the fixed base 23 can rotate around the fixed bolt 21; the dial indicator 10 is held in the holding portion 24 so that the dial indicator 10 can be adjusted up and down and rotated in the holding portion, and the measuring position of the gauge head 12 is adjusted by rotation and movement; the extension piece 12 is fixed on the dial indicator measuring rod through an extension piece bolt, and the extension piece can rotate around the dial indicator measuring rod.
In other embodiments, in order to facilitate adjusting the position and direction of the extension piece 12, the extension piece 12 is connected to a dial indicator measuring rod through a bolt, the dial indicator measuring rod is of a structure with a dial indicator, the dial indicator measuring head is directly connected to the dial indicator measuring rod in the conventional dial indicator, and in this embodiment, the extension piece is added between the dial indicator measuring head and the dial indicator measuring rod, so that the measuring position is changed, and the measurement of the end face runout of the variable-pitch bearing B of the wind driven generator is satisfied.
In some preferred embodiments, the thickness of the extension piece is not less than 3mm, preferably 4mm or 5mm, in order to increase the rigidity of the extension piece to ensure accuracy of the measurement results.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (3)
1. Be used for wind generating set to become oar bearing axial detection mechanism that beats, including percentage table, its characterized in that: the dial indicator is arranged on the dial indicator clamp, the dial indicator clamp comprises a fixing bolt and a fixing base connected to the fixing bolt through a fixing nut, a clamping part is formed on the fixing base, the dial indicator is clamped on the clamping part, the bottom of the dial indicator is further connected with an extension piece, and one end of the extension piece is connected with the dial indicator measuring head.
2. The mechanism for detecting axial runout of a pitch bearing of a wind turbine generator system according to claim 1, wherein: the extension piece is connected to the dial indicator measuring rod through a bolt.
3. The mechanism for detecting axial runout of a pitch bearing of a wind turbine generator system according to claim 1, wherein: the thickness of the extension piece is not less than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321984160.5U CN220230351U (en) | 2023-07-26 | 2023-07-26 | Axial runout detection mechanism for variable-pitch bearing of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321984160.5U CN220230351U (en) | 2023-07-26 | 2023-07-26 | Axial runout detection mechanism for variable-pitch bearing of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220230351U true CN220230351U (en) | 2023-12-22 |
Family
ID=89194601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321984160.5U Active CN220230351U (en) | 2023-07-26 | 2023-07-26 | Axial runout detection mechanism for variable-pitch bearing of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220230351U (en) |
-
2023
- 2023-07-26 CN CN202321984160.5U patent/CN220230351U/en active Active
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| GR01 | Patent grant |