A wind turbine blade speed monitoring device
By introducing an anti-detachment device and a fixing structure into the wind turbine blade speed monitoring device, the problem of separation between the monitoring head and the tachometer was solved, and the protection of the connection line and the stability of the monitoring were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RONGAN HUADIAN WIND POWER CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, during the fixing process of wind turbine blade speed monitoring devices, the monitoring head is easily separated from the tachometer due to the connection wire being pulled, making effective monitoring impossible.
A wind turbine blade speed monitoring device including an anti-detachment device was designed. By setting a rectangular plate and an L-shaped plate on the tachometer, the elastic potential energy of the first and second springs is used to prevent the L-shaped plate from slipping off. The connecting wire is protected by a rubber strip and a clamping plate structure to avoid damage to the connecting wire. At the same time, a bidirectional screw and a strap are used to fix the tachometer to the surface of the object to be measured.
This effectively prevents the monitoring head from separating from the tachometer during the fixing process, protects the connecting wires, and ensures the continuity and reliability of monitoring.
Smart Images
Figure CN224286907U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wind turbine blade speed monitoring devices, and in particular to a wind turbine blade speed monitoring device. Background Technology
[0002] Tachometers are one of the more important measuring instruments in daily life, with wide applications in automotive, electronics, textile, and papermaking industries. However, due to the relatively backward technology in the past, tachometers generally used mechanical or electromechanical mechanisms. They were often used to monitor the rotational speed of wind turbine blades.
[0003] The inventors discovered during daily use of the tachometer that, when using the tachometer, the monitoring head needs to be connected to the tachometer via a connecting cable. Since the monitoring head needs to be fixed to the surface of the object being monitored, the connecting cable may be pulled during fixing, causing it to detach from the tachometer, thus preventing monitoring and causing problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wind turbine blade speed monitoring device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wind turbine blade speed monitoring device, including a tachometer, a connector inserted into the top of the tachometer, a connecting wire fixedly connected to one end of the connector, a laser emitter fixedly connected to the other end of the connecting wire, an anti-detachment device provided on the top of the tachometer, the anti-detachment device including a rectangular plate fixedly connected to the top of the tachometer, an L-shaped plate slidably connected to the surface of the rectangular plate, a first spring fixedly connected to the side of the L-shaped plate, and the other end of the first spring fixedly connected to the side of the rectangular plate.
[0006] The effect achieved by the above components is that, under the action of the first spring, the L-shaped plate slides relative to each other, thereby fixing the connector to the surface of the tachometer and thus preventing slippage.
[0007] Preferably, the L-shaped plate has an arc groove on its side, and a round strip, which is a rubber strip, is fixedly connected inside the arc groove.
[0008] The effect achieved by the above components is that, under the action of the round bar, the L-shaped plate will not directly impact the surface of the connecting wire, thus avoiding damage to the connecting wire.
[0009] Preferably, a retaining plate is fixedly connected to the side of the L-shaped plate, and the retaining plate is fixedly connected to the side of the L-shaped plate near the arc groove.
[0010] The effect achieved by the above components is that, under the action of the clamping plate, the L-shaped plate will not slip off the surface of the rectangular plate, thus avoiding separation.
[0011] Preferably, a locking rod is inserted into the top of the rectangular plate, and a second spring is sleeved on the surface of the locking rod. The two ends of the second spring are respectively fixedly connected to one end of the locking rod at the top of the rectangular plate.
[0012] The aforementioned components achieve the following effects: Under the action of the locking lever, the L-shaped plate is fixed to the surface of the rectangular plate, preventing the L-shaped plate from shifting. Under the action of the second spring, the locking lever will not slip out of the interior of the L-shaped plate. When the tachometer needs to be used, the L-shaped plate is pulled to both sides. Under the action of the locking lever, the L-shaped plate will not slip out of the surface of the rectangular plate, preventing separation. The connector is then connected to the tachometer. After the connector is inserted into the interior of the tachometer, the force pulling the L-shaped plate is released, allowing the L-shaped plate to reset under the elastic potential energy of the first spring. Under the action of the round bar, the L-shaped plate will not directly impact the surface of the connecting wire, preventing damage to the connecting wire. The locking lever is inserted into the interior of the L-shaped plate for fixation, preventing the L-shaped plate from shifting. Under the action of the second spring, the locking lever will not slip out of the interior of the L-shaped plate, thus achieving the anti-detachment function.
[0013] Preferably, the bottom of the tachometer is provided with a fixing device, the fixing device including a rectangular frame fixedly connected to the bottom of the tachometer, a bidirectional screw is rotatably connected inside the rectangular frame, and a clamping plate is threadedly connected to the surface of the bidirectional screw.
[0014] The effect achieved by the above components is that, under the action of the bidirectional screw, the clamps move relative to each other, thereby fixing the tachometer on the surface of the object to be measured.
[0015] Preferably, the surface of the rectangular frame is threaded with a bolt, one end of which abuts against the surface of the bidirectional screw.
[0016] The effect achieved by the above components is that, under the action of the bolts, the double-ended screw can move the clamping plate to a suitable position and then fix the double-ended screw, thereby fixing the surface of the double-ended screw.
[0017] Preferably, a rotating rod is rotatably connected inside the clamping plate, a strap is wrapped around the surface of the rotating rod, a locking block is fixedly connected to one end of the strap, a locking groove is opened at the bottom of the other clamping plate, and a locking rod is inserted into the side of the clamping plate.
[0018] The effect achieved by the above components is that the clamp can be fixed to the surface of the object to be measured by the straps, and the locking block is fixed inside the slot by the locking rod.
[0019] Preferably, a limiting rod is inserted into the surface of the rotating rod, and a circular groove is formed on the side of the clamping plate, into which the limiting rod is inserted.
[0020] The aforementioned components achieve the following effects: Under the action of the limiting rod, the position of the strap can be fixed, thus preventing the strap from becoming loose. When it is necessary to fix the tachometer to the surface of the object to be measured, the tachometer is placed in a suitable position, the bolt is unscrewed outwards to move it away from the double-ended screw, and the double-ended screw is turned by hand to move the clamping plate relative to the surface of the object to be measured. The strap is pulled out from the inside of the clamping plate, and the locking block is inserted into the inside of the locking slot. Under the action of the locking rod, the locking block is fixed inside the locking slot. The rotating rod is turned by hand to tighten the excess strap inside the clamping plate. After the strap is tightly attached to the surface of the object to be measured, the limiting rod is inserted into the inside of the circular groove to fix the rotating rod, and the bolt is pressed against the surface of the double-ended screw, thus achieving the function of fixing the tachometer.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting an anti-detachment device, when the tachometer needs to be used, the L-shaped plate is pulled to both sides. Under the action of the clamping plate, the L-shaped plate will not slip off the surface of the rectangular plate, avoiding separation. This allows the connector to connect to the tachometer. After the connector is inserted into the tachometer, the force pulling the L-shaped plate is released, allowing the L-shaped plate to reset under the elastic potential energy of the first spring. Under the action of the round bar, the L-shaped plate will not directly impact the surface of the connecting wire, avoiding damage to the connecting wire. The clamping rod is inserted into the L-shaped plate for fixation, preventing the L-shaped plate from shifting. Under the action of the second spring, the clamping rod will not slip off the inside of the L-shaped plate, thus achieving the anti-detachment function. This solves the problem that the monitoring head may separate from the tachometer due to pulling during fixation, making monitoring impossible. Attached Figure Description
[0023] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a wind turbine blade speed monitoring device;
[0024] Figure 2 This utility model provides a schematic diagram of an anti-detachment device for a wind turbine blade speed monitoring device;
[0025] Figure 3 This utility model provides a schematic diagram of a fixing device for a wind turbine blade speed monitoring device;
[0026] Figure 4 This invention provides a flowchart illustrating the working principle of a wind turbine blade speed monitoring device.
[0027] Legend: 1. Tachometer; 2. Anti-detachment device; 21. Rectangular plate; 22. L-shaped plate; 23. First spring; 24. Round bar; 25. Locking rod; 26. Second spring; 27. Locking plate; 3. Fixing device; 31. Rectangular frame; 32. Bidirectional screw; 33. Clamping plate; 34. Strap; 35. Locking rod; 36. Bolt; 37. Limiting rod; 4. Laser emitter; 5. Connecting line. Detailed Implementation
[0028] Example 1, as Figure 1 A wind turbine blade speed monitoring device includes a tachometer 1, a connector is inserted into the top of the tachometer 1, one end of the connector is fixedly connected to a connecting wire 5, and the other end of the connecting wire 5 is fixedly connected to a laser emitter 4.
[0029] Working principle: Before use, check the appearance of the tachometer 1 to ensure it is undamaged and the battery is fully charged. Turn on the power switch of the tachometer 1 and wait for the device to start up. The power-on method may vary slightly depending on the model of the tachometer 1; some may require a long press of the power button, while others only require a light touch. Taking the laser tachometer 1 as an example, turn on the laser emission switch and align the laser point with the reflective mark on the rotating part (if there is no reflective mark, a reflective sticker can be attached to the rotating part). Keep the laser point stably illuminating the mark, and the tachometer 1 will quickly acquire the rotational speed data. During the measurement process, closely monitor the changes in the values displayed on the tachometer 1 screen. After the data stabilizes, record the accurate rotational speed value. If you need to continuously monitor the rotational speed changes over a period of time, you can use the data storage function of the tachometer 1 (if available) for subsequent analysis. After the measurement is completed, turn off the power switch of the tachometer 1, wipe the sensor and other components clean, and put them back in the dedicated storage box for safekeeping for future use.
[0030] Reference Figure 2 A detachment prevention device 2 is provided on the top of the tachometer 1. The detachment prevention device 2 includes a rectangular plate 21 fixedly connected to the top of the tachometer 1. An L-shaped plate 22 is slidably connected to the surface of the rectangular plate 21. A first spring 23 is fixedly connected to the side of the L-shaped plate 22. The other end of the first spring 23 is fixedly connected to the side of the rectangular plate 21. An arc groove is opened on the side of the L-shaped plate 22. A round strip 24 is fixedly connected inside the arc groove. The round strip 24 is a rubber strip. A clamping plate 27 is fixedly connected to the side of the L-shaped plate 22. The clamping plate 27 is fixedly connected to the side of the L-shaped plate 22 near the arc groove. A clamping rod 25 is inserted into the top of the rectangular plate 21. A second spring 26 is sleeved on the surface of the clamping rod 25. The two ends of the second spring 26 are fixedly connected to the top of the rectangular plate 21 and one end of the clamping rod 25, respectively.
[0031] Working principle: When the tachometer 1 is needed, the L-shaped plate 22 is pulled to both sides. Under the action of the clamping plate 27, the L-shaped plate 22 will not slip off the surface of the rectangular plate 21, avoiding separation. This allows the connector to connect to the tachometer 1. After the connector is inserted into the tachometer 1, the force pulling the L-shaped plate 22 is released, allowing the L-shaped plate 22 to reset under the elastic potential energy of the first spring 23. Under the action of the round bar 24, the L-shaped plate 22 will not directly impact the surface of the connecting wire 5, avoiding damage to the connecting wire 5. The clamping rod 25 is inserted into the interior of the L-shaped plate 22 for fixation, preventing the L-shaped plate 22 from shifting. Under the action of the second spring 26, the clamping rod 25 will not slip off the interior of the L-shaped plate 22, thus achieving the anti-detachment function.
[0032] Reference Figure 3 The bottom of the tachometer 1 is provided with a fixing device 3. The fixing device 3 includes a rectangular frame 31 fixedly connected to the bottom of the tachometer 1. A double-acting screw 32 is rotatably connected inside the rectangular frame 31. A clamping plate 33 is threadedly connected to the surface of the double-acting screw 32. A bolt 36 is threadedly connected to the surface of the rectangular frame 31. One end of the bolt 36 abuts against the surface of the double-acting screw 32. A rotating rod is rotatably connected inside the clamping plate 33. A binding strap 34 is wrapped around the surface of the rotating rod. A locking block is fixedly connected to one end of the binding strap 34. A locking groove is opened at the bottom of another clamping plate 33. A locking rod 35 is inserted into the side of the clamping plate 33. A limiting rod 37 is inserted into the surface of the rotating rod. A circular groove is opened on the side of the clamping plate 33. The limiting rod 37 is inserted into the interior of the circular groove.
[0033] Working principle: When it is necessary to fix the tachometer 1 to the surface of the object to be measured, the tachometer 1 is placed in a suitable position, the bolt 36 is unscrewed outwards to move it away from the bidirectional screw 32, and the bidirectional screw 32 is turned by hand to make the clamping plate 33 move relative to the surface of the object to be measured. The strap 34 is pulled out from the inside of the clamping plate 33, and the locking block is inserted into the inside of the locking slot. Under the action of the locking rod 35, the locking block is fixed inside the locking slot. The rotating rod is turned by hand to tighten the excess strap 34 inside the clamping plate 33. After the strap 34 is tightly attached to the surface of the object to be measured, the limiting rod 37 is inserted into the inside of the circular groove to fix the rotating rod. The bolt 36 is pressed against the surface of the bidirectional screw 32, thereby achieving the function of fixing the tachometer 1.
Claims
1. A wind turbine blade speed monitoring device, comprising a tachometer (1), a connector is inserted into the top of the tachometer (1), one end of the connector is fixedly connected to a connecting wire (5), and the other end of the connecting wire (5) is fixedly connected to a laser emitter (4), characterized in that: The tachometer (1) is provided with an anti-detachment device (2) at its top. The anti-detachment device (2) includes a rectangular plate (21) fixedly connected to the top of the tachometer (1). An L-shaped plate (22) is slidably connected to the surface of the rectangular plate (21). A first spring (23) is fixedly connected to the side of the L-shaped plate (22). The other end of the first spring (23) is fixedly connected to the side of the rectangular plate (21).
2. The wind turbine blade speed monitoring device according to claim 1, characterized in that: The L-shaped plate (22) has an arc groove on its side, and a round strip (24) is fixedly connected inside the arc groove. The round strip (24) is a rubber strip.
3. The wind turbine blade speed monitoring device according to claim 2, characterized in that: A clamping plate (27) is fixedly connected to the side of the L-shaped plate (22), and the clamping plate (27) is fixedly connected to the side of the L-shaped plate (22) near the arc groove.
4. The wind turbine blade speed monitoring device according to claim 3, characterized in that: A locking rod (25) is inserted into the top of the rectangular plate (21), and a second spring (26) is sleeved on the surface of the locking rod (25). The two ends of the second spring (26) are fixedly connected to one end of the locking rod (25) at the top of the rectangular plate (21).
5. The wind turbine blade speed monitoring device according to claim 4, characterized in that: The bottom of the tachometer (1) is provided with a fixing device (3), the fixing device (3) includes a rectangular frame (31) fixedly connected to the bottom of the tachometer (1), a double-ended screw (32) is rotatably connected inside the rectangular frame (31), and a clamping plate (33) is threadedly connected to the surface of the double-ended screw (32).
6. The wind turbine blade speed monitoring device according to claim 5, characterized in that: The surface of the rectangular frame (31) is threaded with a bolt (36), one end of which abuts against the surface of the bidirectional screw (32).
7. The wind turbine blade speed monitoring device according to claim 6, characterized in that: The clamp (33) is rotatably connected to the inside of the clamp (33), and the surface of the clamp (34) is wrapped with a strap (34). One end of the strap (34) is fixedly connected to a locking block. The bottom of the other clamp (33) is provided with a locking groove, and a locking rod (35) is inserted into the side of the clamp (33).
8. The wind turbine blade speed monitoring device according to claim 7, characterized in that: A limiting rod (37) is inserted into the surface of the rotating rod, and a circular groove is opened on the side of the clamp (33), into which the limiting rod (37) is inserted.