CN112081720A - Fan defect test detection control method for wind power plant - Google Patents
Fan defect test detection control method for wind power plant Download PDFInfo
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- CN112081720A CN112081720A CN202010944414.5A CN202010944414A CN112081720A CN 112081720 A CN112081720 A CN 112081720A CN 202010944414 A CN202010944414 A CN 202010944414A CN 112081720 A CN112081720 A CN 112081720A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/30—Commissioning, e.g. inspection, testing or final adjustment before releasing for production
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- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a fan defect test detection control method for a wind power plant, which is realized based on a detection device, wherein the detection device comprises a cylindrical barrel A, a threaded pipe B, a threaded rod C, a dial and a pointer; the right side position of the outer wall of the cylindrical barrel A is provided with a plurality of tooth-shaped grooves in an annular array shape, and the outer wall of the cylindrical barrel A is welded with one annular track at the right side position of the tooth-shaped grooves; the threaded rod B is in threaded connection with the cylindrical barrel B. This device adjustability and flexibility are stronger, can accomplish the detection of toper fan blade rapidly, because of a cylinder section of thick bamboo B and a cylinder section of thick bamboo A are connected for rotating, and are provided with a thread tightening structure on a cylinder section of thick bamboo B, so a cylinder section of thick bamboo B can be around toper fan blade degree of rotation, when rotating a cylinder section of thick bamboo B to the detection position through the cooperation with thread tightening structure, can use thread tightening structure to fix, whole convenient and fast, and it is comprehensive to detect.
Description
The application is a divisional application of a Chinese patent application with the application number of 201910460782.X, which is filed on 30.5.2019 and is named as a fan defect test detection control method of a wind power plant.
Technical Field
The invention belongs to the technical field of fan detection, and particularly relates to a fan pre-factory defect test detection device for a wind power plant.
Background
With the gradual enhancement of environmental awareness, the wind power and wind power technology is continuously developed, and wind power plants with a large number of wind generating sets are more and more, and become important components of a power grid power supply system. The fan of wind-powered electricity generation field mainly drives fan blade through the effect of wind and rotates, generates electricity through fan blade rotation, so just need a check out test set to detect the intensity of fan before the fan leaves the factory, ensures to use for a long time.
Based on the above, the existing wind power plant fan mainly has the following defects during factory detection:
one is that the structure is not flexible enough, and the fan blades can not be fixed quickly when being detected, the fan blades used in the wind power plant are mostly in a slender triangular conical structure, and the existing blade strength detection device can not fix the detection device on the fan blades quickly when detecting the fan blades, so that the detection efficiency is low; moreover, the detection efficiency is low, and the existing fan blade detection equipment cannot perform multi-surface detection through one-time fixing when detecting the triangular conical fan blade, and often needs to be fixed again when detecting the next position.
In view of the above, the present invention provides a device for testing defects before factory shipment of a wind turbine in a wind farm, which is improved based on the existing structure and defects, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fan defect test detection control method for a wind power plant, which aims to solve the problems that the existing one is that the structure is not flexible enough, the fan blades cannot be quickly fixed during detection, the fan blades for the wind power plant are mostly in a slender triangular cone structure, the existing blade strength detection device cannot quickly fix the detection device on the fan blades during detection of the fan blades, and the detection efficiency is low; moreover, the detection efficiency is low, and the existing fan blade detection equipment cannot perform multi-surface detection through one-time fixing when detecting the triangular conical fan blade, and often needs to be fixed again when detecting the next position.
The purpose and the effect of the fan defect test detection control method of the wind power plant are achieved by the following specific technical means:
a fan defect test detection control method for a wind power plant comprises a cylindrical barrel A, a tooth-shaped groove, an annular track, a thread jacking structure, a threaded pipe A, a threaded rod A, a rotary connecting seat A, a rectangular block A, a rubber block A, a conical tooth, a cylindrical barrel B, a clamping ring, a thread fixing structure, a threaded rod B, a rotary connecting seat B, a rectangular block B, a rubber block B, a detection rod structure, a threaded pipe B, a threaded rod C, a dial and a pointer; the right side position of the outer wall of the cylindrical barrel A is provided with a plurality of tooth-shaped grooves in an annular array shape, and the outer wall of the cylindrical barrel A is welded with one annular track at the right side position of the tooth-shaped grooves; the outer wall of the cylindrical barrel A is in annular array shape and is in threaded connection with three threaded jacking structures; the thread jacking structure consists of a threaded pipe A, a threaded rod A, a rotary connecting seat A, a rectangular block A and a rubber block A; the number of the threaded pipes A is three, and the threaded pipes A are welded on the outer wall of the cylindrical barrel A in an annular array shape; the bottom end face of the threaded rod A is rotatably connected with the rectangular block A through a rotating connecting seat A; the right side of the inner wall of the cylindrical barrel B is also welded with the clamping ring, and the cylindrical barrel A and the thread tightening structure are symmetrically arranged on the right side of the cylindrical barrel B; the thread fixing structure consists of the threaded rod B, a rotary connecting seat B, a rectangular block B and the rubber block B; the threaded rod B is in threaded connection with the cylindrical barrel B, and the bottom end face of the threaded rod B is connected with the rectangular block B through the rotating connecting seat B in a welding mode.
Further, the threaded rod A is connected in the threaded pipe A in a threaded mode.
Furthermore, the rectangular block A is embedded with a block rubber block A, and the bottom end of the rubber block A is in a rectangular array shape and is provided with a plurality of conical teeth.
Furthermore, the outer wall of the cylinder B is rotatably connected with one of the detection rod structures, the position of the left side of the inner wall of the cylinder B is welded with one of the snap rings, and the snap rings are rotatably connected in the annular track.
Furthermore, the left side and the right side of the outer wall of the cylinder B are positioned at the two outer sides of the clamping rings, and the two outer sides of the clamping rings are in threaded connection with one threaded fixing structure.
Furthermore, the bottom end face of the rectangular block B is inlaid with the rubber block B, and when the threaded rod B is screwed down through threads, the bottom end face of the rubber block B can be in contact with the tooth-shaped groove.
Furthermore, the position welding of screwed pipe B outer wall top has one the pointer, just cup joint and weld on the threaded rod C outer wall has one the calibrated scale.
Furthermore, the threaded rod C is connected with a handle in a sliding mode, and the length of the handle is smaller than the radius of the dial.
Compared with the prior art, the invention has the following beneficial effects:
this device is more swift convenient during the detection, and adaptability is strong, because of the cooperation setting of a cylinder section of thick bamboo A and screw thread top tight structure, when detecting fan blade, directly screws up the screw thread top tight structure on a cylinder section of thick bamboo A and can fix, and fixed method is swift effective, in addition, because of rotating connecting seat A and rectangular block A's the connected relation be rotation connection, so can guarantee that screw thread top tight structure can adapt to the inclination of three pyramid form fan blades, and adaptability is stronger.
This device adjustability and flexibility are stronger, can accomplish the detection of toper fan blade rapidly, because of a cylinder section of thick bamboo B and a cylinder section of thick bamboo A are connected for rotating, and are provided with a thread tightening structure on a cylinder section of thick bamboo B, so a cylinder section of thick bamboo B can carry out 360 degrees rotations around the toper fan blade, when rotating a cylinder section of thick bamboo B to the detection position through the cooperation with thread tightening structure, can use thread tightening structure to fix, whole convenient and fast, and detect comprehensively.
The meticulous stability of this device structure is stronger, because of the cooperation setting of thread tightening structure and cylinder A, because of the tooth shape groove position that the last rubber block B of thread tightening structure and the last setting of cylinder A are corresponding, so screw up the threaded rod B on the thread tightening structure, so can strengthen cylinder B's fixed stability.
Drawings
Fig. 1 is a schematic axial view of the present invention.
Fig. 2 is a schematic view of the present invention in an axially disassembled configuration.
FIG. 3 is an axial view of the cylindrical barrel B, the thread fixing structure and the detecting rod structure of the present invention.
Fig. 4 is an axial view of the present invention in a disassembled configuration.
Fig. 5 is an enlarged schematic view of the invention at a in fig. 3.
Fig. 6 is an enlarged schematic view of the invention at B in fig. 2.
Fig. 7 is an enlarged view of the structure of fig. 4 at C according to the present invention.
Fig. 8 is an enlarged axial view of the thread tightening structure of the present invention.
Fig. 9 is an enlarged view of the structure of fig. 8 according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a cylindrical barrel A; 101. a toothed groove; 102. an annular track; 2. a screw thread jacking structure; 201. a threaded pipe A; 202. a threaded rod A; 203. rotating the connecting seat A; 204. a rectangular block A; 205. a rubber block A; 20501. tapered teeth; 3. a cylindrical barrel B; 301. a snap ring; 4. a thread fixing structure; 401. a threaded rod B; 402. rotating the connecting seat B; 403. a rectangular block B; 404. a rubber block B; 5. a detection rod structure; 501. a threaded pipe B; 502 and a threaded rod C; 503. a dial scale; 504. a pointer (504);
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a fan defect test detection control method for a wind power plant, which comprises a cylindrical barrel A1, a tooth-shaped groove 101, an annular track 102, a thread tightening structure 2, a threaded pipe A201, a threaded rod A202, a rotary connecting seat A203, a rectangular block A204, a rubber block A205, tapered teeth 20501, a cylindrical barrel B3, a snap ring 301, a thread fixing structure 4, a threaded rod B401, a rotary connecting seat B402, a rectangular block B403, a rubber block B404, a detection rod structure 5, a threaded pipe B501, a threaded rod C502, a dial 503 and a pointer 504; a plurality of toothed grooves 101 are formed in the right side position of the outer wall of the cylindrical barrel A1 in an annular array manner, and an annular track 102 is welded on the outer wall of the cylindrical barrel A1 at the right side position of the toothed grooves 101; the outer wall of the cylindrical barrel A1 is in annular array shape and is in threaded connection with three thread tightening structures 2; the thread jacking structure 2 consists of a threaded pipe A201, a threaded rod A202, a rotary connecting seat A203, a rectangular block A204 and a rubber block A205; the number of the threaded pipes A201 is three, and the threaded pipes A are welded on the outer wall of the cylindrical barrel A1 in an annular array shape; the bottom end face of the threaded rod A202 is rotatably connected with a rectangular block A204 through a rotating connecting seat A203; a clamping ring 301 is also welded at the right side position of the inner wall of the cylindrical barrel B3, and the cylindrical barrel A1 and the thread tightening structure 2 are also symmetrically arranged at the right side of the cylindrical barrel B3; the thread fixing structure 4 consists of a threaded rod B401, a rotary connecting seat B402, a rectangular block B403 and a rubber block B404; the threaded rod B401 is in threaded connection with the cylindrical barrel B3, and the bottom end face of the threaded rod B401 is connected with the rectangular block B403 in a welding mode through a rotary connecting seat B402.
The threaded rod A202 is in threaded connection with the threaded pipe A201, so that when the fan blade clamping device is used, fan blades of different sizes can be clamped by grabbing the threaded rod A202 through threads.
Wherein, a rubber block A205 is embedded in the rectangular block A204, and a plurality of conical teeth 20501 are arranged on the bottom end surface of the rubber block A205 in a rectangular array shape, so that the anti-skid performance of the thread jacking structure 2 can be enhanced.
Wherein, a cylinder B3 outer wall rotates and is connected with a test rod structure 5, and cylinder B3 inner wall left side position welding has a snap ring 301 to, snap ring 301 rotates and connects in annular track 102, so can satisfy test rod structure 5 and detect the multi-angle of fan blade.
Wherein, the both sides are located two snap ring 301 outside positions on the outer wall left and right sides of cylinder B3 equal threaded connection has a thread tightening structure 4, so the screw thread tightening structure 4 can carry out interim fixed with cylinder B3.
Wherein, the bottom end surface of the rectangular block B403 is embedded with a rubber block B404, and when the threaded rod B401 is screwed down, the bottom end surface of the rubber block B404 can be contacted with the tooth-shaped groove 101, thereby enhancing the fixing stability of the cylindrical barrel B3.
A pointer 504 is welded above the outer wall of the threaded pipe B501, and a dial 503 is sleeved and welded on the outer wall of the threaded rod C502, so that the strength of the fan blade can be detected according to scales on the dial 503 during detection.
Wherein, the threaded rod C502 is connected with a handle in a sliding way, and the length of the handle is less than the radius of the dial 503, so that the handle is convenient and labor-saving to adjust by rotating.
The specific use mode and function of the embodiment are as follows:
when the device is used, the device can be firstly sleeved on fan blades, the fan blades penetrate through two cylindrical barrels A1 and cylindrical barrels B3, the wind power plant fan blades are approximately triangular pyramid-shaped, at the moment, three thread jacking structures 2 which are annularly arranged on each cylindrical barrel A1 are screwed to clamp the two cylindrical barrels B3 and the fan blades, and at the moment, the connection relationship between a rotary connecting seat A203 and a rectangular block A204 is rotary connection, so that the thread jacking structures 2 can be ensured to be suitable for the inclination angle of the triangular-cone-shaped fan blades; after the two cylinders A1 are fixed, the cylinder B3 can be rotated along the two cylinders A1, the cylinder B3 is adjusted to a position to be detected, the threaded rod C502 on the detection rod structure 5 is screwed, a detection head below the threaded rod C502 presses the fan blades, and the rotating angle of the pointer 504 relative to the dial 503 is observed to see whether the fixed strength is achieved; after the surface is inspected, at the moment, the threaded rod B401 on the thread fixing structure 4 can be unscrewed in a spiral mode, then the cylindrical barrel B3 is rotated to enable the detection rod structure 5 to rotate to other surfaces of the fan blades, then the threaded rod B401 on the thread fixing structure 4 is screwed in a spiral mode, then the threaded rod C502 on the detection rod structure 5 is screwed in a spiral mode to continue detection until all three surfaces are detected;
the fixing stability of the cylindrical barrel B3 can be enhanced due to the fitting arrangement between the tooth-shaped groove 101 and the rectangular block B403.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (3)
1. A detection control method for a fan defect test of a wind power plant is realized based on a detection device and is characterized in that: the detection device comprises a cylindrical barrel A (1), a tooth-shaped groove (101), an annular track (102), a thread jacking structure (2), a threaded pipe A (201), a threaded rod A (202), a rotary connecting seat A (203), a rectangular block A (204), a rubber block A (205), tapered teeth (20501), a cylindrical barrel B (3), a snap ring (301), a thread fixing structure (4), a threaded rod B (401), a rotary connecting seat B (402), a rectangular block B (403), a rubber block B (404), a detection rod structure (5), a threaded pipe B (501), a threaded rod C (502), a dial (503) and a pointer (504); a plurality of tooth-shaped grooves (101) are formed in the right side position of the outer wall of the cylindrical barrel A (1) in an annular array shape, and the annular track (102) is welded to the right side position of the outer wall of the cylindrical barrel A (1) in the tooth-shaped grooves (101); the outer wall of the cylindrical barrel A (1) is in annular array shape and is in threaded connection with three thread tightening structures (2); the thread tightening structure (2) consists of a threaded pipe A (201), a threaded rod A (202), a rotary connecting seat A (203), a rectangular block A (204) and a rubber block A (205); the number of the threaded pipes A (201) is three, and the threaded pipes A are welded on the outer wall of the cylindrical barrel A (1) in an annular array shape; the bottom end face of the threaded rod A (202) is rotatably connected with the rectangular block A (204) through a rotary connecting seat A (203); the clamping ring (301) is also welded at the right side position of the inner wall of the cylindrical barrel B (3), and the cylindrical barrel A (1) and the thread tightening structure (2) are also symmetrically arranged at the right side of the cylindrical barrel B (3); the thread fixing structure (4) consists of the threaded rod B (401), a rotary connecting seat B (402), a rectangular block B (403) and the rubber block B (404); the threaded rod B (401) is in threaded connection with the cylindrical barrel B (3), and the bottom end face of the threaded rod B (401) is connected with the rectangular block B (403) in a welding mode through the rotary connecting seat B (402);
the outer wall of the cylindrical barrel B (3) is rotatably connected with the detection rod structure (5), the clamping ring (301) is welded at the left side position of the inner wall of the cylindrical barrel B (3), and the clamping ring (301) is rotatably connected in the annular track (102);
the pointer (504) is welded at the upper position of the outer wall of the threaded pipe B (501), and the dial (503) is sleeved and welded on the outer wall of the threaded rod C (502);
the threaded rod A (202) is in threaded connection with the threaded pipe A (201);
the rubber block A (205) is embedded in the rectangular block A (204), and the bottom end surface of the rubber block A (205) is in a rectangular array shape and is provided with a plurality of conical teeth (20501);
the left side and the right side of the outer wall of the cylindrical barrel B (3) are positioned at the outer sides of the two clamping rings (301) and are in threaded connection with one threaded fixing structure (4); the control method comprises the following steps:
firstly, the device is sleeved on fan blades, the fan blades penetrate through two cylindrical barrels A1 and cylindrical barrels B3, the wind power plant fan blades are approximately triangular pyramid-shaped, at the moment, three thread tightening structures 2 which are annularly arranged on each cylindrical barrel A1 are screwed to clamp the two cylindrical barrels B3 and the fan blades, and at the moment, the connection relationship between a rotary connecting seat B203 and a rectangular block A204 is rotary connection, so that the thread tightening structures 2 can be ensured to adapt to the inclination angle of the triangular pyramid-shaped fan blades;
after the two cylinders A1 are fixed, the cylinder B3 can be rotated along the two cylinders A1, the cylinder B3 is adjusted to a position to be detected, the threaded rod C502 on the detection rod structure 5 is screwed, a detection head below the threaded rod C502 presses the fan blades, and the rotating angle of the pointer 504 relative to the dial 503 is observed to see whether the fixed strength is achieved;
after the surface is inspected, at the moment, the threaded rod B401 on the thread fixing structure 4 can be unscrewed, then the cylindrical barrel B3 is rotated to enable the detection rod structure 5 to rotate to other surfaces of the fan blades, then the threaded rod B401 on the thread fixing structure 4 is screwed, then the threaded rod C502 on the detection rod structure 5 is screwed to continue detection until all three surfaces are detected.
2. The device for testing and detecting the defects of the wind turbine of the wind power plant before leaving factory as claimed in claim 1, is characterized in that: the bottom end face of the rectangular block B (403) is embedded with the rubber block B (404), and when the threaded rod B (401) is screwed, the bottom end face of the rubber block B (404) can be in contact with the tooth-shaped groove (101).
3. The device for testing and detecting the defects of the wind turbine of the wind power plant before leaving factory as claimed in claim 1, is characterized in that: the threaded rod C (502) is connected with a handle in a sliding mode, and the length of the handle is smaller than the radius of the dial (503).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010944414.5A CN112081720A (en) | 2019-05-30 | 2019-05-30 | Fan defect test detection control method for wind power plant |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460782.XA CN110261078B (en) | 2019-05-30 | 2019-05-30 | Fan pre-factory defect test detection device for wind power plant |
| CN202010944414.5A CN112081720A (en) | 2019-05-30 | 2019-05-30 | Fan defect test detection control method for wind power plant |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910460782.XA Division CN110261078B (en) | 2019-05-30 | 2019-05-30 | Fan pre-factory defect test detection device for wind power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112081720A true CN112081720A (en) | 2020-12-15 |
Family
ID=67915960
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910460782.XA Active CN110261078B (en) | 2019-05-30 | 2019-05-30 | Fan pre-factory defect test detection device for wind power plant |
| CN202010944414.5A Withdrawn CN112081720A (en) | 2019-05-30 | 2019-05-30 | Fan defect test detection control method for wind power plant |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910460782.XA Active CN110261078B (en) | 2019-05-30 | 2019-05-30 | Fan pre-factory defect test detection device for wind power plant |
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| Country | Link |
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| CN (2) | CN110261078B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788547B (en) * | 2012-08-20 | 2014-12-10 | 江苏富丽华通用设备有限公司 | Measuring device for mounting angles of blades of axial flow fan |
| US9250153B2 (en) * | 2012-10-31 | 2016-02-02 | General Electric Company | Methods and systems for monitoring health of blades |
| CN204283956U (en) * | 2014-11-19 | 2015-04-22 | 石家庄国祥精密机械有限公司 | Axial-flow blower dispatches from the factory vibration simulation test platform |
| CN106323604A (en) * | 2015-06-26 | 2017-01-11 | 天津松英科技发展有限公司 | Wind turbine blade damage detection apparatus |
| CN106392683A (en) * | 2016-08-24 | 2017-02-15 | 安徽省青阳县华瑞科技有限公司 | Fixing supporting rod |
| CN206338227U (en) * | 2016-12-16 | 2017-07-18 | 绍兴上虞九阳风机有限公司 | A kind of airduct of wind pipe type draught fan performance test equipment |
| CN106979170B (en) * | 2017-04-20 | 2018-06-12 | 中北大学 | A kind of fan blade monitoring method for centrifugal blower air inlet dust cover |
| CN107642499B (en) * | 2017-10-26 | 2023-05-16 | 中国计量大学 | Axial flow fan performance detection device and detection method thereof |
| CN207777378U (en) * | 2017-12-19 | 2018-08-28 | 重庆汉美实业有限公司 | A kind of steady bolt |
-
2019
- 2019-05-30 CN CN201910460782.XA patent/CN110261078B/en active Active
- 2019-05-30 CN CN202010944414.5A patent/CN112081720A/en not_active Withdrawn
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| Publication number | Publication date |
|---|---|
| CN110261078B (en) | 2020-11-24 |
| CN110261078A (en) | 2019-09-20 |
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