Dynamic ovality detection device for wind power flange
Patent Information
- Application Number
- PCT/CN2026/081615
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-20
- Filing Date
- 2026-03-05
- Publication Date
- 2026-09-24
Smart Images
Figure CN2026081615_24092026_PF_FP_ABST
Abstract
Description
A dynamic detection device for the ellipticity of wind turbine flanges Technical Field
[0001] This invention relates to the field of wind turbine flange testing technology, and in particular to a dynamic ellipticity testing device for wind turbine flanges. Background Technology
[0002] Wind turbines are important new energy power generation equipment. Their basic structure consists of a wind turbine main unit supported by a tower, which converts wind energy into electrical energy at high altitudes. The main unit of the wind turbine can rotate to adjust its windward side. To enable the main unit to rotate, bearings with flanges are required for connection. Usually, the diameter of the bearing flange is relatively large. To ensure the stability of the main unit, the bearing flange has high precision requirements. The bearing flange needs to meet the roundness standard to ensure the stability of the flange connection. Currently, the dynamic detection device for flange ovality is usually tested before the wind turbine is installed. However, after the flange is connected, its accuracy will change with the increase of the service life. It is not convenient to monitor the various accuracy indicators of the flange in real time during the operation of the wind turbine. The test items involved are cumbersome and inefficient. It is also not convenient to test the play between the bearing flange. With the increase of the service life, the flange deformation error gradually increases, which poses a safety hazard. The flange bolts usually rely on manual inspection. Local loose bolts can easily lead to flange deformation and displacement. If not detected in time, it will further increase the flange accuracy deviation. Summary of the Invention
[0003] This disclosure relates to a dynamic ellipticity detection device for wind turbine flanges. Its clearance detection component can assist in detecting the clearance accuracy of the flange, avoiding the undetected wear of bearing flanges and loosening of bolts after long-term use, which can lead to an increase in ellipticity. It can effectively improve the safety of the structure. At the same time, the clearance detection component also plays a limiting role, which can timely control and reinforce the main unit and tower, and improve the connection stability.
[0004] In a first aspect, this disclosure provides a dynamic ellipticity detection device for wind turbine flanges, specifically including a detection flange component, on which a sealing detection component is mounted; a pressure testing device is connected to the sealing detection component and installed inside the detection flange component; the sealing detection component is used to test the sealing performance of the detection flange component; a rotating detection part is mounted inside the detection flange component; the rotating detection part is used to rotate and detect the ellipticity deviation of the detection flange component; a detection control component is mounted on the rotating detection part and electrically connected to the sealing detection component; and a detection fixing component is fixedly mounted inside the detection flange component. The component includes a rotating detection part attached to a detection fixture; three clearance detection elements are installed on the rotating detection part; the three clearance detection elements are used to detect the clearance of the flange component; the flange component includes: a fan body, a body flange, and a flange bearing outer ring, the fan body being mounted with a body flange; the flange bearing outer ring is mounted on the body flange via a ring of bolts and nuts; the sealing detection element includes: a fluid-passing installation pipe, the fluid-passing installation pipe having a ring, the bottom of the ring of fluid-passing installation pipe being attached to the flange bearing outer ring; the ring of fluid-passing installation pipe is respectively sleeved on the outside of a ring of bolts mounted on the flange bearing outer ring.
[0005] In at least some embodiments, the detection control component further includes: a detection adjustment shaft and a micro switch, wherein the detection adjustment shaft is slidably inserted into the adjustment mounting bracket; the end of the positioning bolt abuts against the detection adjustment shaft; a micro switch is fixedly installed at the end of the detection adjustment shaft; the micro switch is aligned with the detection sliding shaft; the micro switch is electrically connected to an alarm control light; and the detection adjustment shaft is used to adjust the trigger position of the micro switch.
[0006] In at least some embodiments, the detection flange includes: an inner ring of a flange bearing, wherein the inner ring of the flange bearing is fitted with bearing rollers and installed inside the outer ring of the flange bearing; and meshing teeth are provided on the outer side of the outer ring of the flange bearing.
[0007] In at least some embodiments, the clearance detection component includes: a propulsion hydraulic cylinder, an interlocking slider, and a guide shaft. The propulsion hydraulic cylinder is fixedly mounted on a rotating mounting cylinder. An interlocking slider is fixedly mounted on the output shaft of the propulsion hydraulic cylinder. The end of the interlocking slider has a beveled structure. The interlocking slider is inserted into the inner side of the detection ring. Guide shafts are fixedly mounted on both sides of the interlocking slider, and the two guide shafts are respectively inserted into the rotating mounting cylinder.
[0008] In at least some embodiments, the pressurizing device includes: a pressurizing mounting ring, a pressurizing airbag, a pressing disc, a pressing plate, a pressing block, and a supporting spring. The pressurizing mounting ring is fixedly sleeved inside the blower casing. The pressurizing airbag is fixedly mounted on the pressurizing mounting ring. The pressurizing airbag is located inside the blower casing. The pressurizing airbag is connected to a connecting ring via a flexible hose. The pressing disc is fixedly attached to the top of the pressurizing airbag. The pressing plate is slidably mounted on the pressing disc and is slidably sleeved inside the blower casing. The pressing disc is slidably sleeved inside the pressurizing mounting ring. A ring of pressing blocks, each of which is an arc-shaped structure, is fixedly mounted on the pressing plate. A supporting spring is fixedly mounted on the pressing disc and is sleeved inside the pressing plate. The supporting spring is located between the pressing disc and the pressing plate. The pressurizing airbag is used to increase the liquid pressure inside the liquid-conducting installation pipe.
[0009] In at least some embodiments, the sealing test component includes: a sealing ring, a connecting ring, a fluid replenishment bolt, and an alarm control light. A rubber coating is provided at the bottom of each of the fluid-passing mounting tubes. The sealing ring is fixedly sleeved on the fluid-passing mounting tube. The sealing ring is fixedly mounted on the outer ring of the flange bearing by bolts. The connecting ring is fixedly mounted on the fluid-passing mounting tube. The connecting ring communicates with the fluid-passing mounting tube. A fluid replenishment bolt is threaded onto the connecting ring, and the fluid replenishment bolt penetrates the upper shell of the connecting ring. The fluid replenishment bolt is aligned with each of the fluid-passing mounting tubes. The alarm control light is fixedly sleeved on the outside of the connecting ring. The fluid-passing mounting tube is used for fluid-passing testing of the bolt installation sealing performance between the outer ring of the flange bearing and the cylindrical flange.
[0010] In at least some embodiments, the detection control component includes: an adjusting mounting bracket and a positioning bolt, wherein the adjusting mounting bracket is fixedly mounted inside the rotating mounting cylinder; the adjusting mounting bracket is threadedly connected to the positioning bolt; and the end of the positioning bolt passes through the adjusting mounting bracket.
[0011] In at least some embodiments, the rotating detection unit includes: a rotating mounting cylinder, a pressing protrusion, and a detection slide shaft. The rotating mounting cylinder is fixedly sleeved inside the inner ring of the flange bearing. The pressing protrusion is fixedly installed at the bottom of the rotating mounting cylinder and is attached to the pressing block. The detection slide shaft is slidably inserted into the rotating mounting cylinder. A spring is sleeved on the detection slide shaft, and the spring sleeved on the detection slide shaft is connected between the rotating mounting cylinder and the detection slide shaft. The end of the detection slide shaft has a hemispherical structure. The pressing protrusion is used to press the pressing block. The detection slide shaft is used to detect the radial and axial offset of the flange.
[0012] In at least some embodiments, the detection fixture includes: a detection ring and a rubber ring, wherein the detection ring is fixedly installed inside the fan casing; the rubber ring is fixedly installed on the detection ring and is attached to the bottom of the inner ring of the flange bearing; and a "V" shaped groove is formed on the inner side of the detection ring.
[0013] In at least some embodiments, the clearance detection component further includes: a brush sponge and an electromagnet, wherein brush sponges are fixedly installed on both sides of the interlocking slider, and the brush sponges are attached to the "V"-shaped groove on the inner side of the detection ring; an electromagnet is fixedly installed inside the interlocking slider; the electromagnet is used to magnetically attract the detection ring.
[0014] This invention provides a dynamic ellipticity detection device for wind turbine flanges, which has the following advantages:
[0015] The invention employs a clearance detection component to assist in the clearance test under active stress application. This eliminates the need to disassemble the inner and outer rings of the flange bearing, allowing for further assessment of the fit accuracy between them. This prevents the safety hazards caused by the gradual increase in ellipticity due to clearance over prolonged use. The three interlocking sliders act as limiters when inserted into the detection ring, improving the stability of the structure in harsh environments. Simultaneously, the interlocking sliders clean the detection ring, ensuring a smooth inner surface and preventing any impact on testing accuracy.
[0016] Furthermore, the rotary detection unit can be installed on the wind turbine for real-time testing. It can be used to test the axial and radial offset errors of the cylindrical flange and the outer ring of the flange bearing in the wind turbine flange in real time. It can effectively integrate the testing items. The radial and axial deviations can be detected at one time through the detection slide shaft and the "V" groove of the detection ring, which improves the testing efficiency. The detection control component can adjust the alarm trigger stroke, that is, the sensitivity, further improving the practicality of this structure.
[0017] In addition, the use of sealing test components can test the sealing performance between the outer ring of the flange bearing and the cylinder flange, as well as the tightness of the bolts, in real time. This prevents the cylinder flange and the outer ring of the flange bearing from becoming loose or shifting, which could affect the balance of the wind turbine. It can also detect the stability of the bolt connection in a timely manner, reducing problems such as flange deformation caused by loose bolts. At the same time, when the wind turbine rotates and switches the windward side, it can be pressurized in real time to increase the air pressure and increase the sealing test pressure. The pressurization work is carried out by using a pressure bladder to ensure reliable sealing performance testing. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.
[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.
[0020] In the attached diagram:
[0021] Figure 1 shows a schematic diagram of the overall structure of the dynamic detection device of this application;
[0022] Figure 2 shows a cross-sectional view of the internal structure of the dynamic detection device of this application;
[0023] Figure 3 shows a schematic diagram of the bottom structure of the dynamic detection device of this application;
[0024] Figure 4 shows a schematic diagram of the structure of the inspection flange of this application;
[0025] Figure 5 shows a schematic diagram of the sealing detection component structure of this application;
[0026] Figure 6 shows a schematic diagram of the structure of the pressure device of this application;
[0027] Figure 7 shows a schematic diagram of the structure of the rotation detection unit of this application;
[0028] Figure 8 shows an enlarged view of the structure of region B in Figure 2;
[0029] Figure 9 shows an enlarged view of the structure of region C in Figure 3;
[0030] Figure 10 shows a schematic diagram of the mounting structure of the adjustable mounting bracket of this application;
[0031] Figure 11 shows a schematic diagram of the detection ring structure of this application;
[0032] Figure 12 shows a schematic diagram of the structure of the blank detection component of this application.
[0033] List of reference numerals
[0034] 1. Inspection flange components; 101. Fan body; 1011. Body flange; 102. Flange bearing outer ring; 103. Flange bearing inner ring; 2. Sealing inspection components; 201. Liquid inlet pipe; 2011. Sealing ring; 202. Connecting ring; 203. Liquid replenishment bolt; 204. Alarm control light; 3. Pressure testing device; 301. Pressure testing mounting ring; 302. Pressure testing airbag; 303. Pressing plate; 304. Pressing plate; 305. Pressing block; 306. Support spring 4. Spring; 5. Rotary detection unit; 6. Rotary mounting cylinder; 7. Extrusion protrusion; 8. Detection slide shaft; 9. Detection control component; 10. Adjustment mounting bracket; 2. Positioning bolt; 3. Detection adjustment shaft; 4. Micro switch; 5. Detection fixing component; 6. Detection ring; 7. Rubber ring; 8. Play detection component; 9. Propulsion hydraulic cylinder; 10. Interlocking slider; 11. Guide shaft; 12. Brush sponge; 13. Electromagnet. Detailed Implementation
[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0036] Example 1: Please refer to Figures 1 to 12:
[0037] This invention proposes a dynamic ellipticity detection device for wind turbine flanges, comprising a detection flange 1, a sealing detection element 2 mounted on the detection flange 1, a pressure testing device 3 connected to the sealing detection element 2 and installed inside the detection flange 1, the sealing detection element 2 being used to test the sealing performance of the detection flange 1, a rotating detection part 4 mounted inside the detection flange 1, the rotating detection part 4 being used to rotate and detect the ellipticity deviation of the detection flange 1, a detection control element 5 mounted on the rotating detection part 4 and electrically connected to the sealing detection element 2, and a detection fixing element 6 fixedly mounted inside the detection flange 1, the rotating detection part 4 being attached to the detection fixing element 6; the rotating detection part 4... Three clearance testing elements 7 are installed on the rotating testing unit 4; the three clearance testing elements 7 are used to test the clearance of the flange component 1; the flange component 1 includes: a fan body 101, a body flange 1011 and a flange bearing outer ring 102, the fan body 101 is equipped with the body flange 101; the flange bearing outer ring 102 is installed on the body flange 101 by a ring of bolts and nuts; the sealing testing element 2 includes: a liquid-passing installation pipe 201, the liquid-passing installation pipe 201 is provided with a ring, the bottom of the ring of liquid-passing installation pipe 201 is respectively attached to the flange bearing outer ring 102; the ring of liquid-passing installation pipe 201 is respectively sleeved on the outside of the ring of bolts installed on the flange bearing outer ring 102.
[0038] In this embodiment, the detection flange 1 includes: a flange bearing inner ring 103, which is mounted on the inner side of the flange bearing outer ring 102 in conjunction with bearing rollers; the outer side of the flange bearing outer ring 102 is provided with meshing teeth; the sealing detection component 2 includes: a sealing ring 2011, a connecting ring 202, a liquid replenishing bolt 203, and an alarm control light 204; the bottom of a liquid-conducting installation pipe 201 is respectively provided with a rubber coating; the sealing ring 2011 is fixedly sleeved on the liquid-conducting installation pipe 201; the sealing ring 2011 is fixed by bolts. A fixed fitting is installed on the outer ring 102 of the flange bearing; a connecting ring 202 is fixedly installed on a ring of liquid-passing mounting pipe 201; the connecting ring 202 is connected to the ring of liquid-passing mounting pipe 201; a ring of liquid-filling bolts 203 is threaded onto the connecting ring 202, and the ring of liquid-filling bolts 203 penetrates the upper shell of the connecting ring 202; the ring of liquid-filling bolts 203 are respectively aligned with the ring of liquid-passing mounting pipe 201; an alarm control light 204 is fixedly sleeved on the outside of the connecting ring 202; the liquid-passing mounting pipe 201 is used for liquid-passing testing of the outer ring 102 of the flange bearing. The bolt installation between the flange 1011 and the cylinder body ensures a tight seal. The pressure device 3 includes: a pressure mounting ring 301, a pressure airbag 302, a pressing plate 303, a pressing plate 304, a pressing block 305, and a support spring 306. The pressure mounting ring 301 is fixedly sleeved inside the fan cylinder body 101. The pressure airbag 302 is fixedly mounted on the pressure mounting ring 301. The pressure airbag 302 is located inside the fan cylinder body 101. The pressure airbag 302 is connected to the connecting ring 202 through a hose. The top of the pressure airbag 302 is fixedly fitted with... Pressing disc 303; a pressing plate 304 is slidably mounted on the pressing disc 303 and is slidably sleeved inside the blower cylinder 101; the pressing disc 303 is slidably sleeved inside the pressure mounting ring 301; a ring of pressing blocks 305 is fixedly mounted on the pressing plate 304, and the ring of pressing blocks 305 are all arc-shaped structures; a support spring 306 is fixedly mounted on the pressing disc 303 and is sleeved inside the pressing plate 304; the support spring 306 is located between the pressing disc 303 and the pressing plate 304;The pressure-increasing airbag 302 is used to increase the internal liquid pressure of the liquid-conducting installation pipe 201. By employing the pressure-increasing device 3 and the set sealing detection element 2, this structure can perform targeted testing on the connection stability between the flange bearing outer ring 102 and the cylinder flange 1011. This ensures the stability of the fan cylinder 101 in supporting the main unit and prevents the loosening of the connecting bolts between the flange bearing outer ring 102 and the cylinder flange 1011 due to factors such as main unit vibration from going unnoticed. This structure can test the connection sealing performance and bolt tightening effect between the flange bearing outer ring 102 and the cylinder flange 1011 in real time, because the bolts on the flange... The holes are typically slightly larger than the bolt diameter. If the bolts loosen, it can easily cause increased vibration and other problems, leading to misalignment between the cylinder flange 1011 and the outer ring 102 of the flange bearing, affecting the wind turbine's balance. This structure can promptly detect the stability of the bolt connections, reducing flange deformation caused by loose bolts. Simultaneously, the use of liquid flow detection allows for real-time monitoring of the connection stability and sealing of each bolt. When the wind turbine rotates and switches its windward side, real-time pressurization can be applied to increase the sealing test pressure. The pressurization airbag 302 is used for pressurization to ensure reliable sealing testing. The structure operates rationally and efficiently.
[0039] In this embodiment, the rotating detection unit 4 includes: a rotating mounting cylinder 401, a pressing protrusion 402, and a detection sliding shaft 403. The rotating mounting cylinder 401 is fixedly sleeved inside the inner ring 103 of the flange bearing. The pressing protrusion 402 is fixedly mounted on the bottom of the rotating mounting cylinder 401 and is attached to the pressing block 305. The detection sliding shaft 403 is slidably inserted into the rotating mounting cylinder 401. A spring is sleeved on the detection sliding shaft 403, and the spring sleeved on the detection sliding shaft 403 is connected between the rotating mounting cylinder 401 and the detection sliding shaft 403. The end of the detection sliding shaft 403 is a hemispherical structure. The pressing protrusion 402 is used to press the pressing block 305. The detection sliding shaft 403 is used to detect the radial and axial offset of the detection flange 1. The detection control component 5 includes: an adjustment... The adjustment mounting bracket 501 and positioning bolt 502 are used to adjust the mounting bracket 501, which is fixedly installed inside the rotating mounting cylinder 401. The positioning bolt 502 is threaded onto the adjustment mounting bracket 501. The end of the positioning bolt 502 passes through the adjustment mounting bracket 501. The detection control component 5 also includes a detection adjustment shaft 503 and a micro switch 504. The detection adjustment shaft 503 is slidably inserted into the adjustment mounting bracket 501. The end of the positioning bolt 502 presses against the detection adjustment shaft 503. The micro switch 504 is fixedly installed at the end of the detection adjustment shaft 503. The micro switch 504 is aligned with the detection sliding shaft 403. The micro switch 504 is electrically connected to the alarm control light 204. The detection adjustment shaft 503 is used to adjust the trigger position of the micro switch 504, which is achieved by rotating the detection part 4. This structure can be installed on wind turbines for real-time testing. The rotating detection unit 4 can perform real-time testing of the axial and radial offset errors after the connection between the cylindrical flange 1011 and the outer ring 102 of the flange bearing in the wind turbine flange. Utilizing the basic requirement that the inner ring 103 of the flange bearing and the cylindrical flange 1011 should be coaxial, it indirectly reflects the roundness of the cylindrical flange 1011 and the outer ring 102 of the flange bearing. It can effectively integrate testing items. The radial and axial deviations can be detected simultaneously through the detection sliding shaft 403 and the detection fixing component 6, improving testing efficiency. At the same time, the structure is simple and reasonable, providing more direct problem detection. Problems can be repaired promptly, ensuring the normal operation of the wind turbine. The detection control component 5 allows for adjustment of the alarm. The trigger stroke, or sensitivity, further enhances the practicality of this structure. Regardless of whether the axial or radial position of the detection slide shaft 403 and the detection ring 601 changes, the detection slide shaft 403 will be axially squeezed by the "V" groove on the inner side of the detection ring 601 or radially squeezed by the inclined surface of the "V" groove. The detection slide shaft 403 can retract to touch the micro switch 504. At this time, the micro switch 504 can control the alarm control light 204 to light up and provide an alarm prompt, making it easy for staff to be informed. During the rotation process, the detection slide shaft 403 can be fitted and detected at various points on the inner side of the detection ring 601, ensuring the comprehensiveness of indirect detection, improving the connection safety of the wind power flange, and effectively detecting the ellipticity error of the outer ring 102 of the flange bearing after installation.
[0040] In Example 2, based on Example 1, the detection fixing component 6 includes: a detection ring 601 and a rubber ring 602. The detection ring 601 is fixedly installed inside the fan casing 101; the rubber ring 602 is fixedly installed on the detection ring 601, and the rubber ring 602 is attached to the bottom of the inner ring 103 of the flange bearing, serving to fit and prevent dust; a "V" shaped groove is opened on the inner side of the detection ring 601; the play detection component 7 includes: a propulsion hydraulic cylinder 701, a sliding block 702, and a guide shaft 703. The propulsion hydraulic cylinder 701 is fixedly installed on the rotating mounting cylinder 401; a sliding block 702 is fixedly installed on the output shaft of the propulsion hydraulic cylinder 701. The interlocking slider 702 has a beveled end and is inserted into the inner side of the detection ring 601. Guide shafts 703 are fixedly installed on both sides of the interlocking slider 702, and the two guide shafts 703 are respectively inserted into the rotating mounting cylinder 401. The clearance detection component 7 also includes a brush sponge 704 and an electromagnet 705. The brush sponge 704 is fixedly installed on both sides of the interlocking slider 702 and is attached to the "V"-shaped groove on the inner side of the detection ring 601. An electromagnet 705 is fixedly installed inside the interlocking slider 702. The electromagnet 705 is used to magnetically attract the detection ring 601. A brush sponge 704 is used to clean the test ring 601. A clearance testing component 7 assists in active stress clearance testing, improving the reliability of the connection between the flange bearing inner ring 103 and the flange bearing outer ring 102. Stress can be applied for testing, making the process more labor-saving and convenient. It eliminates the need to remove the flange bearing inner ring 103 and outer ring 102, preventing excessive weight and difficulty in manually testing clearance ranges due to the weight of the main unit mounted on the flange bearing inner ring 103, which would otherwise cause the inner and outer rings to be pressed tightly together. With prolonged use and the presence of play, the ellipticity gradually increases, posing a safety hazard. If there is wear play between the inner ring 103 and the outer ring 102 of the flange bearing, the cylindrical flange 1011 and the outer ring 102 of the flange bearing will be pulled by the interlocking sliders 702, causing displacement between them and the inner ring 103 of the flange bearing. At this time, the opposing detection slide shaft 403 will squeeze the detection ring 601, and the detection slide shaft 403 can also squeeze the micro switch 504 to control the alarm, thus realizing the play detection. When the three interlocking sliders 702 are inserted into the detection ring 601, they can play a limiting role, improving the stability of this structure in harsh environments.
[0041] The working principle of this embodiment is as follows: The distance between the micro switch 504 and the detection sliding shaft 403 is adjusted using the sliding detection adjustment shaft 503. Tightening the positioning bolt 502 allows for positioning. After the wind turbine main unit is connected to the inner ring 103 of the flange bearing via flange bolts, when the wind turbine operates and adjusts its windward side, it drives the rotating mounting cylinder 401 to rotate. At this time, the rotating mounting cylinder 401 will drive the detection sliding shaft 403 to slide within the "V"-shaped groove on the inner side of the detection ring 601. If the rollers between the inner ring 103 and the outer ring 102 of the flange bearing are severely worn, and the inner ring 103 and the outer ring 102 are no longer concentric, or if the outer ring 102 and the cylinder flange 1011 exhibit elliptic deformation, the detection ring 601 will... 1 will also be compressed and undergo elliptical deformation. Under the action of the spring, the detection slide 403 will adhere to the detection ring 601. Regardless of whether the axial or radial position of the detection slide 403 and the detection ring 601 changes, the detection slide 403 will be axially compressed through the "V" groove on the inner side of the detection ring 601 or radially compressed through the inclined surface of the "V" groove. The detection slide 403 can retract to touch the micro switch 504. At this time, the micro switch 504 can control the alarm control light 204 to light up and provide an alarm prompt, so that the staff can be informed. During the rotation process, the detection slide 403 can adhere to and detect various points on the inner side of the detection ring 601. The push hydraulic cylinder 701, which is opposite to the detection control component 5, drives the interlocking slider 702 to move. During the process, the electromagnet 70 The electromagnetic attraction detection ring 601, when the interlocking slider 702 moves, can pull the fan cylinder 101 to move. If there is wear play between the inner ring 103 and the outer ring 102 of the flange bearing, the cylinder flange 1011 and the outer ring 102 of the flange bearing on the fan cylinder 101 will be pulled by the interlocking slider 702 and displaced between them and the inner ring 103 of the flange bearing. At this time, the opposing detection slide shaft 403 will squeeze the detection ring 601. If the play is too large, the detection slide shaft 403 can also squeeze the micro switch 504 to control the alarm, realizing the play detection work. When the rotating mounting cylinder 401 is driven to rotate by the main unit, it can drive the interlocking slider 702 to rotate to switch different detection positions. The staff can perform regular inspections. At the same time, the interlocking slider 702... 2. During rotation, the detection ring 601 can be wiped with a brush sponge 704. The three interlocking sliders 702 are inserted into the detection ring 601, but without friction, they act as a limit switch. In inclement weather, this is used for reinforcement work. Rotating the liquid filling bolt 203 allows for the initial lubrication of the liquid-filling installation pipe 201. When the inner ring 103 of the flange bearing is rotated by the wind turbine main unit, the rotating detection unit 4 can squeeze the pressing block 305, causing the pressing plate 304 to move downwards and compress the support spring 306, thus pressing down the airbag 302. The air pressure is introduced into the liquid-filling installation pipe 201 through a hose, allowing for real-time testing of the sealing effect of each bolt connection on the outer ring 102 of the flange bearing. If any bolt becomes loose...Oil will seep into the outer ring 102 of the flange bearing. At this time, the oil level inside the fluid inlet pipe 201 decreases, allowing for timely detection of the tightness of the bolt connections.
[0042] The following points should be noted in this article:
[0043] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.
[0044] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0045] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A dynamic detection device for ovality of a wind power flange, comprising a detection flange (1), a sealing detection piece (2) is installed on the detection flange (1); characterized in that: The sealing test piece (2) is connected to a pressure testing device (3), and the pressure testing device (3) is installed inside the test flange (1); the sealing test piece (2) is used to test the sealing performance of the test flange (1); A rotating detection part (4) is installed on the inner side of the detection flange (1); the rotating detection part (4) is used to rotate and detect the ellipticity deviation of the detection flange (1); The rotating detection unit (4) is equipped with a detection control component (5), and the detection control component (5) is electrically connected to the sealing detection component (2). The detection flange (1) is fixedly installed with a detection fixing component (6), and the rotating detection part (4) is attached to the detection fixing component (6). Three clearance detection elements (7) are installed on the rotating detection unit (4); the three clearance detection elements (7) are used to detect the clearance of the flange (1); The testing flange component (1) includes: a fan cylinder (101), a cylinder flange (1011), and a flange bearing outer ring (102). The fan cylinder (101) is equipped with a cylinder flange (1011). The flange bearing outer ring (102) is installed on the cylinder flange (1011) by a ring of bolts and nuts. The sealing testing component (2) includes: a liquid-passing installation pipe (201). The liquid-passing installation pipe (201) is provided with a ring, and the bottom of the ring of liquid-passing installation pipe (201) is respectively attached to the flange bearing outer ring (102). The ring of liquid-passing installation pipe (201) is respectively sleeved on the outside of the ring of bolts installed on the flange bearing outer ring (102).
2. The ovality dynamic detection device for a wind power flange according to claim 1, characterized in that, The testing flange (1) further includes: a flange bearing inner ring (103), which is installed inside the flange bearing outer ring (102) in conjunction with bearing rollers; the flange bearing outer ring (102) is provided with meshing teeth on its outer side.
3. The ovality dynamic detection device for a wind power flange according to claim 2, characterized in that, The sealing detection component (2) further includes: a sealing ring (2011), a connecting ring (202), a liquid replenishment bolt (203), and an alarm control light (204). A rubber coating is provided at the bottom of a ring of the liquid-conducting installation tube (201). The sealing ring (2011) is fixedly sleeved on a ring of the liquid-conducting installation tube (201). The sealing ring (2011) is fixedly mounted on the outer ring (102) of the flange bearing by bolts. The connecting ring (202) is fixedly mounted on a ring of the liquid-conducting installation tube (201). 202) Connect a ring of liquid-passing installation pipe (201); a ring of liquid-filling bolts (203) is threaded on the connecting ring (202), and the ring of liquid-filling bolts (203) passes through the upper shell of the connecting ring (202); the ring of liquid-filling bolts (203) is aligned with the ring of liquid-passing installation pipes (201); the alarm control light (204) is fixedly sleeved on the outside of the connecting ring (202); the liquid-passing installation pipe (201) is used for liquid-passing test of the bolt installation sealing between the outer ring (102) of the flange bearing and the cylindrical flange (1011).
4. The ovality dynamic detection device for a wind power flange according to claim 3, characterized in that, The pressurizing device (3) includes: a pressurizing mounting ring (301), a pressurizing airbag (302), a pressing plate (303), a pressing plate (304), a pressing block (305), and a supporting spring (306). The pressurizing mounting ring (301) is fixedly sleeved inside the fan cylinder (101). The pressurizing airbag (302) is fixedly mounted on the pressurizing mounting ring (301). The pressurizing airbag (302) is located inside the fan cylinder (101). The pressurizing airbag (302) is connected to the connecting ring (202) through a hose. The pressing plate (303) is fixedly attached to the top of the pressurizing airbag (302). A pressing block is slidably mounted on the pressing plate (303). A pressure plate (304) is slidably sleeved inside the blower cylinder (101); a pressing disc (303) is slidably sleeved inside the pressure mounting ring (301); a ring of pressing blocks (305) is fixedly installed on the pressing plate (304), and each ring of pressing blocks (305) has an arc-shaped structure; a support spring (306) is fixedly installed on the pressing disc (303), and the support spring (306) is sleeved inside the pressing plate (304); the support spring (306) is located between the pressing disc (303) and the pressing plate (304); the pressure airbag (302) is used to increase the liquid pressure inside the liquid-conducting mounting pipe (201).
5. The dynamic ellipticity detection device for a wind turbine flange according to claim 4, characterized in that, The rotating detection unit (4) includes: a rotating mounting cylinder (401), a pressing protrusion (402), and a detection slide shaft (403). The rotating mounting cylinder (401) is fixedly sleeved inside the inner ring (103) of the flange bearing. The pressing protrusion (402) is fixedly installed at the bottom of the rotating mounting cylinder (401) and is attached to the pressing block (305). The detection slide shaft (403) is slidably inserted into the rotating mounting cylinder (401). A spring is sleeved on the detection slide shaft (403), and the spring sleeved on the detection slide shaft (403) is connected between the rotating mounting cylinder (401) and the detection slide shaft (403). The end of the detection slide shaft (403) is a hemispherical structure. The pressing protrusion (402) is used to press the pressing block (305). The detection slide shaft (403) is used to detect the radial and axial offset of the detection flange (1).
6. The ellipticity dynamic detection device for a wind turbine flange according to claim 5, characterized in that, The detection control component (5) includes: an adjustment mounting bracket (501) and a positioning bolt (502). The adjustment mounting bracket (501) is fixedly installed inside the rotating mounting cylinder (401). The positioning bolt (502) is threaded onto the adjustment mounting bracket (501). The end of the positioning bolt (502) passes through the adjustment mounting bracket (501).
7. The dynamic ellipticity detection device for a wind turbine flange according to claim 6, characterized in that, The detection control component (5) further includes: a detection adjustment shaft (503) and a micro switch (504). The detection adjustment shaft (503) is slidably inserted into the adjustment mounting bracket (501). The end of the positioning bolt (502) presses against the detection adjustment shaft (503). The micro switch (504) is fixedly installed at the end of the detection adjustment shaft (503). The micro switch (504) is aligned with the detection sliding shaft (403). The micro switch (504) is electrically connected to the alarm control lamp (204). The detection adjustment shaft (503) is used to adjust the trigger position of the micro switch (504).
8. The ellipticity dynamic detection device for a wind turbine flange according to claim 5, characterized in that, The detection fixture (6) includes a detection ring (601) and a rubber ring (602). The detection ring (601) is fixedly installed inside the fan cylinder (101). The rubber ring (602) is fixedly installed on the detection ring (601) and the rubber ring (602) is attached to the bottom of the inner ring (103) of the flange bearing. A "V" shaped groove is opened on the inner side of the detection ring (601).
9. The dynamic ellipticity detection device for a wind turbine flange according to claim 8, characterized in that, The clearance detection component (7) includes: a propulsion hydraulic cylinder (701), a sliding block (702), and a guide shaft (703). The propulsion hydraulic cylinder (701) is fixedly installed on the rotating mounting cylinder (401). The sliding block (702) is fixedly installed on the output shaft of the propulsion hydraulic cylinder (701). The end of the sliding block (702) is a bevel structure. The sliding block (702) is inserted into the inner side of the detection ring (601). Guide shafts (703) are fixedly installed on both sides of the sliding block (702), and the two guide shafts (703) are respectively inserted into the rotating mounting cylinder (401).
10. The dynamic ellipticity detection device for a wind turbine flange according to claim 9, characterized in that, The clearance detection component (7) further includes: a brush sponge (704) and an electromagnet (705). The brush sponge (704) is fixedly installed on both sides of the interlocking slider (702), and the brush sponge (704) is attached to the "V" shaped groove on the inner side of the detection ring (601). The electromagnet (705) is fixedly installed inside the interlocking slider (702). The electromagnet (705) is used to magnetically attract the detection ring (601).