A wind turbine tower settlement monitoring device

Abstract

The utility model discloses a wind power generator set tower drum subsidence monitoring device in the field of wind power monitoring, including tower drum body, the outside of tower drum body is provided with four groups of rope subsidence detection mechanism and trigger type warning mechanism, and four groups of rope subsidence detection mechanism are along the circumference interval setting with the center of tower drum body as the benchmark, the rope subsidence detection mechanism includes the rope body connected with tower drum body, the limit wheel for changing the direction of rope body, the winding wheel connected with the rope body, the torsional spring body of setting on winding wheel and the sliding block connected with winding wheel, and the sliding block is movably arranged in the sliding seat, and the limiting convex rod is arranged on the sliding seat, and this wind power generator set tower drum subsidence monitoring device carries out mechanical conversion to the subsidence change of different directions of tower drum body through rope subsidence detection mechanism, and realizes the intuitive display and signal feedback of subsidence state through trigger type warning mechanism, thereby improve the stability, reliability and abnormal state discovery ability of wind power generator set tower drum subsidence monitoring.

Description

Technical Field

[0001] This utility model relates to the field of wind power monitoring, specifically a wind turbine tower settlement monitoring device. Background Technology

[0002] Wind turbine tower settlement refers to the slow subsidence of the foundation structure after long-term exposure to structural loads from the tower, nacelle, blades, and natural environment. This causes changes in the overall height of the tower, resulting in vertical deviation, altered stress state, and reduced operational stability of the turbine. This phenomenon is typically influenced by factors such as geological conditions, foundation construction quality, groundwater variations, and wind loads. Monitoring tower settlement is crucial for understanding the foundation's condition and identifying any abnormalities to implement appropriate maintenance measures.

[0003] Existing wind turbine tower settlement monitoring devices typically rely on electronic detection equipment such as rangefinders and displacement sensors to monitor changes in the tower foundation during long-term use. However, because wind turbines are exposed to outdoor environments for extended periods, they are susceptible to temperature variations, wind vibrations, and environmental interference, leading to potential errors in the detection equipment. Furthermore, electronic components may experience performance degradation or failure after prolonged operation, making it difficult to provide timely and accurate feedback on settlement status. In addition, existing detection methods usually only acquire information on changes at a single location, making it difficult to quickly determine the direction of tower settlement and tilting trends. When early settlement changes occur in the tower, staff cannot quickly identify the anomaly through visual means, thus affecting the effectiveness of safety monitoring during wind turbine operation. Therefore, this invention designs a wind turbine tower settlement monitoring device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a wind turbine tower settlement monitoring device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A wind turbine tower settlement monitoring device includes a tower body. Four sets of rope settlement detection mechanisms and a trigger-type alarm mechanism are arranged on the outer side of the tower body. The four sets of rope settlement detection mechanisms are spaced apart circumferentially with the center of the tower body as a reference. Each rope settlement detection mechanism includes a rope connected to the tower body, a limiting wheel for changing the direction of the rope, a winding wheel connected to the rope, a torsion spring body disposed on the winding wheel, and a sliding block connected to the winding wheel. The sliding block is movably disposed within a sliding seat, and a limiting protrusion is provided on the sliding seat. The trigger-type alarm mechanism is correspondingly disposed with the sliding block.

[0006] Optionally, the rope settlement detection mechanism includes a mounting sleeve, a slot, a rope, a support shaft, a limiting wheel, a winding reel, a support shaft, a bearing seat, a torsion spring, a sliding block, a sliding seat, a support column, a protective cover, and a limiting protrusion. A mounting sleeve is fixedly installed on the outer wall of the tower body, and a slot is provided inside the mounting sleeve. One end of the rope is inserted into the slot. A mounting base is fixedly installed at the lower end of the tower body, and a support shaft is fixedly installed at the upper end of the mounting base. A limiting wheel is installed on the support shaft, and the rope connects to the winding reel after passing over the limiting wheel.

[0007] Optionally, a support shaft is fixedly installed in the middle of the winding reel, and bearing seats are respectively installed at both ends of the support shaft. A sliding block is fixedly installed at the lower end of the bearing seat, and a torsion spring is provided between the bearing seat and the winding reel. The torsion spring is used to maintain the tension compensation effect of the winding reel on the rope.

[0008] Optionally, a sliding seat is provided below the sliding block, and multiple limiting protrusions are fixedly installed on the inner wall of the sliding seat. The multiple limiting protrusions are distributed at intervals along the length direction of the sliding seat. When the change in the rope exceeds the compensation range of the torsion spring, the sliding block overcomes the limiting effect of the limiting protrusions and moves along the sliding seat.

[0009] Optionally, a support column is fixedly installed at the upper end of the sliding seat, and a protective cover is fixedly installed at the upper end of the support column. The protective cover is used to protect the winding reel, the support shaft, and the bearing seat.

[0010] Optionally, the trigger-type alarm mechanism includes an electrical control box, a bearing bracket, a rotating shaft, a flagpole, a rotating sleeve, a button assembly, and a reset spring. The bearing bracket is mounted on the upper end of the sliding seat, the rotating shaft is rotatably mounted inside the bearing bracket, and the flagpole is fixedly mounted on the upper end of the rotating shaft.

[0011] Optionally, a rotating sleeve is fixedly installed at the rear end of the rotating shaft. A button assembly is provided on the rotating sleeve. The button assembly is electrically connected to the electrical control box. A return spring is installed between the rotating sleeve and the bearing bracket. When the sliding block moves, it pushes the rotating sleeve to rotate, causing the flagpole to tilt. At the same time, the button assembly transmits a settlement signal to the electrical control box.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model includes a rope settlement detection mechanism. By setting multiple sets of rope detection structures around the circumference of the tower body, settlement changes in different directions of the tower body can be applied to the ropes at corresponding positions. Utilizing the connection relationship between the ropes, limiting wheels, winding wheels, supporting shafts, bearing seats, and torsion springs, the ropes can be adjusted by rotating the winding wheels when slight length changes occur due to environmental factors, reducing the impact of thermal expansion and contraction on the detection results. Simultaneously, through the elastic compensation effect of the torsion springs and the cooperation between the sliding block, sliding seat, and limiting protrusion, the device can distinguish between the normal change state of the ropes and the actual settlement state of the tower body. When the tower body settles or tilts, the ropes in different directions experience corresponding slack or tension changes, further driving the sliding block to move, thereby converting the spatial changes of the tower body into mechanical structural changes. This facilitates the judgment of settlement direction and trend, improving the stability and reliability of the device during long-term monitoring.

[0013] 2. This utility model includes a trigger-type alarm mechanism. By establishing a corresponding trigger relationship with the sliding block of the rope settlement detection mechanism, the sliding block can push the rotating sleeve to move after detecting a change in the settlement of the tower body. This causes a change in the state of the rotating shaft and the flagpole. At the same time, the connection between the button assembly and the electrical control box allows the mechanical displacement change to be further converted into an electrical signal feedback, thereby realizing timely reminders of abnormal settlement conditions. This structure uses the mechanical changes of the flagpole to provide a direct observation method, avoiding reliance solely on electronic detection equipment for judgment. The reset spring restricts the rotation of the rotating sleeve, ensuring that the trigger-type alarm mechanism maintains a stable working state. This improves the device's ability to identify and warn of abnormal tower body settlement conditions. Attached Figure Description

[0014] Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from a frontal view. Figure 3 This is a three-dimensional top view of the structure of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model from a left-side plan view; Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention cut along the vertical direction. Figure 1 ; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention cut along the vertical direction. Figure 2 ; Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention cut along the vertical direction. Figure 3 ; Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention when cut horizontally. Figure 1 ; Figure 9 This is a schematic diagram of the three-dimensional structure of the present invention when cut horizontally. Figure 2 ; Figure 10 This is a schematic diagram of the three-dimensional structure of the present invention cut along the vertical direction. Figure 4 ; Figure 11 This utility model Figure 9 A magnified three-dimensional structural diagram of point A in the middle; Figure 12 This utility model Figure 7 A magnified three-dimensional structural diagram of point B in the middle; Figure 13 This utility model Figure 5 A magnified three-dimensional structural diagram at point C.

[0015] In the diagram: 1. Tower body; 2. Rope settlement detection mechanism; 201. Mounting screw sleeve; 202. Slot; 203. Rope body; 204. Support shaft frame; 205. Limit wheel; 206. Winding reel; 207. Support shaft body; 208. Bearing seat; 209. Torsion spring body; 210. Sliding block; 211. Sliding seat; 212. Support column; 213. Protective cover; 214. Limiting protrusion; 3. Trigger-type alarm mechanism; 301. Electrical control box; 302. Bearing frame; 303. Rotating shaft; 304. Flagpole; 305. Rotating sleeve; 306. Button assembly; 307. Return spring; 4. Mounting base. Detailed Implementation

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-13 In this embodiment of the utility model, when a wind turbine tower settlement monitoring device is used, the tower body 1 is first used as the main installation body. Four sets of rope settlement detection mechanisms 2 are set along the circumference on the outside of the tower body 1. The four sets of rope settlement detection mechanisms 2 are arranged at intervals with the center position of the tower body 1 as the reference, so that changes in the tower body 1 in different directions can act on the corresponding rope settlement detection mechanisms 2. At the same time, a trigger-type alarm mechanism 3 is set at the corresponding position of the rope settlement detection mechanism 2 to provide status feedback when the detected structure undergoes displacement changes.

[0020] The rope settlement detection mechanism 2 includes a mounting sleeve 201, a slot 202, a rope body 203, a support shaft frame 204, a limiting wheel 205, a winding reel 206, a support shaft 207, a bearing seat 208, a torsion spring body 209, a sliding block 210, a sliding seat 211, a support column 212, a protective cover 213, and a limiting protrusion 214. During installation, the mounting sleeve 201 is first fixedly installed on the outer wall of the tower body 1. The mounting sleeve 201 has a slot 202 inside, and one end of the rope body 203 is inserted into the slot 202, forming a fixed connection between the rope body 203 and the tower body 1. A mounting base 4 is fixedly installed at the lower end of the tower body 1, and a support shaft frame 204 is fixedly installed at the upper end of the mounting base 4. A limit wheel 205 is installed on the support shaft frame 204. The rope 203 extends downward from the tower body 1 and passes around the limit wheel 205. The extension direction of the rope 203 is changed by the limit wheel 205, so that the rope 203 can be connected to the winding wheel 206.

[0021] A support shaft 207 is fixedly mounted in the middle of the reel 206. Bearing seats 208 are respectively mounted at both ends of the support shaft 207, allowing the reel 206 to rotate between the bearing seats 208 via the support shaft 207. A sliding block 210 is fixedly mounted at the lower end of the bearing seat 208, and the sliding block 210 is disposed inside the sliding seat 211, allowing the reel 206, support shaft 207, and bearing seats 208 to move within the limited direction of the sliding seat 211. A torsion spring 209 is provided between the bearing seat 208 and the reel 206, and the torsion spring 209 can adjust the rotation state of the reel 206, so that the reel 206 can maintain tension on the rope 203.

[0022] Under normal operating conditions, the rope 203 remains taut. When the change in the tower body 1 does not exceed the detection range, the rope 203 changes length due to environmental factors. The winding wheel 206 can rotate adaptively under the action of the torsion spring 209, so that the change in the rope 203 is adjusted by the rotation of the winding wheel 206. At this time, the sliding block 210 remains in the initial position within the sliding seat 211, avoiding false triggering of the detection structure due to normal changes in the rope 203.

[0023] When the tower body 1 settles or tilts, the four sets of rope settlement detection mechanisms 2 are respectively set at different positions in different directions of the tower body 1. Therefore, the ropes 203 in each direction will slack or tighten to different degrees according to the changing state of the tower body 1. When the change of the rope 203 in a certain direction exceeds the compensation range of the torsion spring 209, the winding wheel 206 is pulled by the rope 203, which drives the support shaft 207 and the bearing seat 208 to move. Since the bearing seat 208 is fixedly connected to the sliding block 210, the sliding block 210 moves along the inside of the sliding seat 211.

[0024] Multiple limiting protrusions 214 are fixedly installed on the inner wall of the sliding seat 211. These protrusions are spaced apart along the length of the sliding seat 211. During movement, the sliding block 210 is limited by the limiting protrusions 214. When the traction force generated by the rope 203 exceeds the limiting effect of the limiting protrusions 214 on the sliding block 210, the sliding block 210 overcomes the obstruction of the limiting protrusions 214 and moves along the sliding seat 211. The movement of the sliding block 210 reflects the settlement change of the tower body 1. Since the four sets of rope settlement detection mechanisms 2 correspond to different directions, the settlement direction and changes of the tower body 1 can be determined based on the changes in the sliding block 210 in different directions.

[0025] A protective cover 213 is provided on the outside of the rope settlement detection mechanism 2. The protective cover 213 is fixedly installed on the upper end of the sliding seat 211 by the support column 212. The protective cover 213 is used to protect the winding wheel 206, the support shaft 207 and the bearing seat 208, so that the moving parts of the rope settlement detection mechanism 2 can maintain a stable working state.

[0026] The trigger-type alarm mechanism 3 includes an electrical control box 301, a bearing bracket 302, a rotating shaft 303, a flagpole 304, a rotating sleeve 305, a button assembly 306, and a return spring 307. During installation, the electrical control box 301 is positioned outside the sliding seat 211, the bearing bracket 302 is mounted on the upper end of the sliding seat 211, the rotating shaft 303 is rotatably mounted inside the bearing bracket 302, the flagpole 304 is fixedly mounted on the upper end of the rotating shaft 303, the rotating sleeve 305 is fixedly mounted on the rear end of the rotating shaft 303, the button assembly 306 is mounted on the rotating sleeve 305, the button assembly 306 is connected to the electrical control box 301, and the return spring 307 is installed between the rotating sleeve 305 and the bearing bracket 302.

[0027] When the sliding block 210 moves along the sliding seat 211 due to the settlement change of the tower body 1, the sliding block 210 pushes the rotating sleeve 305, causing the rotating sleeve 305 to rotate around the rotating shaft 303. During the rotation, the rotating sleeve 305 overcomes the limiting effect of the return spring 307 and drives the rotating shaft 303 to rotate synchronously, causing the flagpole 304 installed on the rotating shaft 303 to tilt, so that the staff can obtain settlement warning information by observing the state change of the flagpole 304. At the same time, the action of the rotating sleeve 305 will trigger the button assembly 306, which transmits a corresponding signal to the electrical control box 301, allowing the staff to obtain the settlement status of the tower body 1 through electrical control. When the sliding block 210 returns to the corresponding position, the return spring 307 can adjust the state of the rotating sleeve 305, so that the trigger-type alarm mechanism 3 can maintain stable operation.

[0028] Through the above structure, the rope settlement detection mechanism 2 uses the state change of the rope 203 to mechanically detect the settlement of the tower body 1, and distinguishes the normal changes of the rope 203 from the actual settlement changes through the elastic adjustment of the torsion spring 209 and the cooperation of the limiting protrusion 214 and the sliding block 210; the trigger-type alarm mechanism 3 uses the mechanical displacement of the sliding block 210 to drive the flagpole 304 to produce a state change, and realizes signal feedback through the button assembly 306 and the electrical control box 301, thereby realizing the monitoring and alarm of the settlement status of the wind turbine tower.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind turbine tower settlement monitoring device, comprising a tower body (1), characterized in that: Four sets of rope settlement detection mechanisms (2) and trigger-type alarm mechanisms (3) are provided on the outside of the tower body (1). The four sets of rope settlement detection mechanisms (2) are arranged circumferentially with the center of the tower body (1) as the reference. The rope settlement detection mechanism (2) includes a rope (203) connected to the tower body (1), a limiting wheel (205) for changing the direction of the rope (203), a winding wheel (206) connected to the rope (203), a torsion spring (209) set on the winding wheel (206), and a sliding block (210) connected to the winding wheel (206). The sliding block (210) is movably arranged in the sliding seat (211). The sliding seat (211) is provided with a limiting protrusion (214). The trigger-type alarm mechanism (3) is arranged correspondingly to the sliding block (210).

2. The wind turbine tower settlement monitoring device according to claim 1, characterized in that: The rope settlement detection mechanism (2) includes a mounting sleeve (201), a slot (202), a rope body (203), a support shaft frame (204), a limiting wheel (205), a winding wheel (206), a support shaft body (207), a bearing seat (208), a torsion spring body (209), a sliding block (210), a sliding seat (211), a support column (212), a protective cover (213), and a limiting protrusion (214). The outer wall of the tower body (1) is fixedly equipped with a mounting... The screw sleeve (201) has a slot (202) inside. One end of the rope (203) is inserted into the slot (202). The lower end of the tower body (1) is fixedly installed with a mounting base (4). The upper end of the mounting base (4) is fixedly installed with a support shaft frame (204). A limit wheel (205) is installed on the support shaft frame (204). The rope (203) passes around the limit wheel (205) and is connected to the winding wheel (206).

3. The wind turbine tower settlement monitoring device according to claim 2, characterized in that: A support shaft (207) is fixedly installed in the middle of the winding reel (206). Bearing seats (208) are installed at both ends of the support shaft (207). A sliding block (210) is fixedly installed at the lower end of the bearing seat (208). A torsion spring (209) is provided between the bearing seat (208) and the winding reel (206). The torsion spring (209) is used to maintain the tension compensation effect of the winding reel (206) on the rope (203).

4. The wind turbine tower settlement monitoring device according to claim 2, characterized in that: A sliding seat (211) is provided below the sliding block (210). Multiple limiting protrusions (214) are fixedly installed on the inner wall of the sliding seat (211). The multiple limiting protrusions (214) are distributed at intervals along the length direction of the sliding seat (211). When the change in the rope (203) exceeds the compensation range of the torsion spring (209), the sliding block (210) overcomes the limiting effect of the limiting protrusions (214) and moves along the sliding seat (211).

5. The wind turbine tower settlement monitoring device according to claim 4, characterized in that: The upper end of the sliding seat (211) is fixedly installed with a support column (212), and the upper end of the support column (212) is fixedly installed with a protective cover (213). The protective cover (213) is used to protect the winding wheel (206), the support shaft (207) and the bearing seat (208).

6. The wind turbine tower settlement monitoring device according to claim 1, characterized in that: The trigger-type alarm mechanism (3) includes an electrical control box (301), a bearing bracket (302), a rotating shaft (303), a flagpole (304), a rotating sleeve (305), a button assembly (306), and a reset spring (307). The bearing bracket (302) is installed on the upper end of the sliding seat (211), the rotating shaft (303) is rotatably installed inside the bearing bracket (302), and the flagpole (304) is fixedly installed on the upper end of the rotating shaft (303).

7. The wind turbine tower settlement monitoring device according to claim 6, characterized in that: A rotating sleeve (305) is fixedly installed at the rear end of the rotating shaft (303). A button assembly (306) is provided on the rotating sleeve (305). The button assembly (306) is electrically connected to the electrical control box (301). A return spring (307) is installed between the rotating sleeve (305) and the bearing bracket (302). When the sliding block (210) moves, it pushes the rotating sleeve (305) to rotate, causing the flagpole (304) to tilt. At the same time, the button assembly (306) transmits a settlement signal to the electrical control box (301).

Images