Wind turbine generator cabin vibration detection device

Abstract

The utility model belongs to the technical field of vibration detection, and discloses a wind turbine generator cabin vibration detection device which comprises an installation assembly, the top of the installation assembly is connected with a sensor, and a fastening bolt and a connecting mechanism are arranged in the installation assembly. The connecting mechanism comprises a locking assembly movably mounted in the mounting assembly, the middle of the locking assembly is connected with a control assembly, the control assembly comprises a left magnetic attraction block II and a right magnetic attraction block II which are connected to the middle of the locking assembly, and the opposite faces of the two magnetic attraction blocks II are each fixedly connected with a locking tooth plate. And a connecting tooth plate is arranged between the two locking tooth plates. Due to the arrangement of the locking assembly, a worker can conveniently, simply and rapidly control the two second magnetic attraction blocks to be far away from or close to each other, then the effect of locking the connecting tooth plate or unlocking is achieved under the cooperation of the two locking tooth plates, and therefore the effect of effectively improving the disassembly and assembly efficiency of the sensor is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of vibration detection technology, specifically a vibration detection device for wind turbine nacelles. Background Technology

[0002] Wind energy is a clean and renewable energy source, and generating electricity using wind power is an extremely important and promising method of power generation. Wind power generation is achieved by converting the mechanical energy of wind into electrical energy through wind turbines. To understand the vibration of wind turbines during operation, vibration monitoring sensors need to be installed on the wind turbines. However, during long-term monitoring, the sensors need to be removed for inspection and maintenance to ensure their normal operation. However, most existing sensors are fixed to the wind turbines with bolts, which is not convenient for quick disassembly and assembly. Therefore, it is necessary to develop a vibration monitoring mechanism for wind turbines to overcome the shortcomings of existing technologies. Utility Model Content

[0003] To address the problems mentioned in the background section, this invention provides a wind turbine nacelle vibration detection device, which has the advantages of easy and quick disassembly and maintenance.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine nacelle vibration detection device, comprising an installation assembly, wherein a sensor is connected to the top of the installation assembly, and a fastening bolt and a connecting mechanism are provided inside the installation assembly;

[0005] The connecting mechanism includes a locking component movably installed inside the mounting assembly. A control component is connected to the middle of the locking component. The control component includes two magnetic blocks connected to the middle of the locking component. A locking tooth plate is fixedly connected to the facing surfaces of the two magnetic blocks. A connecting tooth plate is provided between the two locking tooth plates. The upper end of the connecting tooth plate passes through the connecting mechanism and extends to the top of the mounting assembly and is fixedly connected to the bottom of the sensor. The facing surfaces of the locking tooth plate and the connecting tooth plate mesh with each other. The two magnetic blocks and the locking tooth plate move relative to each other along the interior of the mounting assembly with the locking component.

[0006] Preferably, the tooth cross-sections of the opposing surfaces of the locking tooth plate and the connecting tooth plate are both right-angled triangles, with the inclined surface of the triangular tooth on the locking tooth plate tilting upwards and the inclined surface of the triangular tooth on the connecting tooth plate tilting downwards.

[0007] Preferably, the mounting assembly comprises a mounting block arranged at the bottom of the sensor, a linkage cavity is arranged in the middle of the mounting block, a limiting sliding slot is arranged in the inside of the mounting block and located at the bottom of the linkage cavity, the bottom of the magnetic block two and the locking tooth plate is slidingly connected in the inside of the limiting sliding slot, and two limiting cavities are arranged in the inside of the mounting block and located at the outside of the linkage cavity and axially symmetrical.

[0008] Preferably, the locking assembly comprises a control ring rotatably sleeved on the side surface of the mounting block, a transmission internal gear is movably sleeved in the inside of the linkage cavity, a limiting connecting rod is slidingly connected in the inside of the limiting cavity, and the limiting connecting rod is fixedly connected between the control ring and the transmission internal gear.

[0009] Preferably, the inside of the transmission internal gear is meshingly connected with two transmission external gears which are left-right symmetrical, the top of the transmission external gear extends above the transmission internal gear and is fixedly connected with a linkage shaft, the top of the linkage shaft is fixedly connected with a positioning shaft, and the positioning shaft is rotatably sleeved in the inside of the mounting block.

[0010] Preferably, the outside surface of the linkage shaft is fixedly connected with two symmetrical magnetic block one, one of the magnetic block one and the magnetic block two are mutually attracted, and the other magnetic block one and the magnetic block two are mutually repelled.

[0011] Preferably, the arc length of the limiting connecting rod moving along the limiting cavity with the control ring is half of the circumference of the transmission external gear, and the friction force exists between the outside surface of the control ring and the inner wall of the mounting assembly.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、Due to the arrangement of the locking assembly, the sensor and the mounting assembly can be quickly connected under the cooperation of the control assembly, and the sensor can be quickly disassembled, so that the disassembly efficiency of the sensor is improved.

[0014] 2、Due to the arrangement of the limiting cavity, the rotating range of the control ring and the transmission internal gear can be limited under the cooperation of the limiting connecting rod, so that the rotating angle of the linkage shaft can be determined in time and accurately by the worker, so that the magnetic block one can be aligned with the magnetic block two after rotation, so that the magnetic attraction or repulsion of the magnetic block two can be ensured.

[0015] 3、Due to the fact that the teeth of the locking tooth plate and the connecting tooth plate are in the shape of a right triangle, the inclined surface of the triangular teeth of the locking tooth plate is upward, and the inclined surface of the triangular teeth of the connecting tooth plate is downward, so that the connecting tooth plate can be inserted between the two locking tooth plates under the repulsive force of the magnetic block two on the magnetic block one, but cannot be pulled out, thereby reducing the operation steps during installation, and further improving the installation efficiency.

[0016] 4、The utility model discloses because the sufficient friction force exists between the outer surface of control ring and the inner wall of mounting block, therefore staff can turn to control ring to control the rotation of transmission internal gear under the cooperation of spacing connecting rod, but control ring does not rotate accidentally during no external force, i.e. transmission internal gear does not drive linkage shaft and the magnetic attraction piece one on its surface to rotate accidentally, thereby ensuring the stability during installation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure schematic diagram of the utility model installation component;

[0019] Figure 3 It is the sectional view of the front of the utility model installation component;

[0020] Figure 4 It is the sectional view of the top of the utility model installation component.

[0021] In the drawing: 1, installation component;11, mounting block;12, spacing cavity;13, linkage cavity;14, spacing sliding slot;2, sensor;3, fastening bolt;4, connecting mechanism;41, locking assembly;411, control ring;412, transmission internal gear;413, spacing connecting rod;414, transmission external gear;415, linkage shaft;416, magnetic attraction piece one;417, positioning shaft;42, control assembly;421, magnetic attraction piece two;422, locking tooth plate;423, connecting tooth plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0023] As shown in Figures 1 to 4 The utility model provides a kind of wind turbine nacelle vibration detection device, including installation component 1, the top of installation component 1 is connected with sensor 2, the inside of installation component 1 is provided with fastening bolt 3 and connecting mechanism 4;

[0024] The connecting mechanism 4 comprises a locking assembly 41 movably arranged in the mounting assembly 1, and a control assembly 42 connected to the middle part of the locking assembly 41. The control assembly 42 comprises two magnetic blocks 421 arranged on the left and right sides of the middle part of the locking assembly 41, and each of the two magnetic blocks 421 is fixedly connected with a locking tooth plate 422 arranged on the facing surface of the magnetic block 421. The two locking tooth plates 422 are arranged in a connected tooth plate 423, and the upper end of the connected tooth plate 423 penetrates through the connecting mechanism 4 and extends above the mounting assembly 1 and is fixedly connected to the bottom of the sensor 2. The facing surfaces of the locking tooth plates 422 and the connected tooth plate 423 are in meshing relationship, and the two magnetic blocks 421 and the locking tooth plates 422 move along the inside of the mounting assembly 1 with the locking assembly 41. Due to the arrangement of the locking assembly 41, the staff can conveniently and quickly control the mutual moving apart or moving close of the two magnetic blocks 421, and then achieve the locking or unlocking effect of the connected tooth plate 423 under the cooperation of the two locking tooth plates 422, so as to effectively improve the disassembly and assembly efficiency of the sensor 2.

[0025] As shown in Figure 3 , the tooth section of the facing surface of the locking tooth plate 422 and the connected tooth plate 423 is a right triangle, the inclined surface of the triangular tooth on the locking tooth plate 422 is inclined upward, and the inclined surface of the triangular tooth on the connected tooth plate 423 is inclined downward. Since the tooth on the locking tooth plate 422 and the connected tooth plate 423 is a right triangle, and the inclined surface of the triangular tooth on the locking tooth plate 422 is upward, and the inclined surface of the triangular tooth on the connected tooth plate 423 is downward, it can be ensured that under the repulsive force of the magnetic block 416 to the magnetic block 421, the staff can still conveniently insert the connected tooth plate 423 between the two locking tooth plates 422, but cannot be pulled out, thereby reducing the operation steps during installation, and further improving the installation efficiency.

[0026] As shown in Figure 3 and Figure 4 , the mounting assembly 1 comprises a mounting block 11 arranged at the bottom of the sensor 2, and a linkage cavity 13 is arranged in the middle part of the mounting block 11. A limiting sliding slot 14 is arranged in the inside of the mounting block 11 and located at the bottom of the linkage cavity 13. The bottom of the magnetic block 421 and the locking tooth plate 422 is slidingly connected in the inside of the limiting sliding slot 14. Two limiting cavities 12 are arranged in the inside of the mounting block 11 and are axisymmetrically arranged outside the linkage cavity 13. Due to the arrangement of the limiting cavities 12, the rotating range of the control ring 411 and the transmission internal gear 412 can be limited under the cooperation of the limiting connecting rod 413, so that the staff can timely and accurately determine the rotation angle of the linkage shaft 415, so as to ensure that the magnetic block 416 can be aligned with the magnetic block 421 after rotation, so as to ensure the magnetic attraction or repulsion of the magnetic block 421.

[0027] As shown in Figure 3 and Figure 4As shown, the locking assembly 41 comprises a control ring 411 rotatably sleeved on the side surface of the mounting block 11, a transmission inner gear 412 movably sleeved in the linkage cavity 13, and a limiting connecting rod 413 slidably connected in the limiting cavity 12.

[0028] As shown in Figure 3 and Figure 4 , the transmission inner gear 412 is internally connected with two transmission outer gears 414 which are symmetrical left and right, the top of the transmission outer gear 414 extends above the transmission inner gear 412 and is fixedly connected with a linkage shaft 415, the top of the linkage shaft 415 is fixedly connected with a positioning shaft 417, and the positioning shaft 417 is rotatably sleeved in the inside of the mounting block 11.

[0029] As shown in Figure 4 , the outer surface of the linkage shaft 415 is fixedly connected with two symmetrical magnetic attraction blocks 416, one of which is attracted to the magnetic attraction block two 421, and the other is repelled from the magnetic attraction block two 421.

[0030] As shown in Figure 4 , the arc length of the limiting connecting rod 413 moving along the limiting cavity 12 with the control ring 411 is half the circumference of the transmission outer gear 414, and there is friction between the outer surface of the control ring 411 and the inner wall of the mounting assembly 1; because there is enough friction between the outer surface of the control ring 411 and the inner wall of the mounting block 11, the staff can rotate the control ring 411 to control the rotation of the transmission inner gear 412 with the cooperation of the limiting connecting rod 413, but the control ring 411 will not rotate accidentally during the period without external force, that is, the transmission inner gear 412 will not drive the linkage shaft 415 and the magnetic attraction block one 416 on its surface to rotate accidentally, thereby ensuring the stability during installation.

[0031] The working principle and use process of the utility model:

[0032] First, the mounting assembly 1 and the connecting mechanism 4 are fixedly installed on the wind turbine generator as a whole through the fastening bolt 3, then the sensor 2 is moved so that the bottom fixedly connected connecting tooth plate 423 is inserted into the two locking tooth plates 422 inside the linkage cavity 13 from the top of the mounting block 11, then under the action of the repulsive force corresponding to the magnetic attraction block one 416, the left and right two locking tooth plates 422 clamp the connecting tooth plate 423, that is, the connecting tooth plate 423 is fixedly connected in the linkage cavity 13, so that the sensor 2 is fixedly installed on the top of the mounting block 11;

[0033] When the sensor 2 needs to be removed, the control ring 411 is rotated to rotate the transmission inner gear 412 through the limiting connecting rod 413 under the limitation of the limiting cavity 12, and since the transmission inner gear 412 rotates, the two linkage shafts 415 are synchronously rotated under the limitation of the positioning shaft 417, and under the limitation of the limiting cavity 12 on the limiting connecting rod 413, when the control ring 411 is rotated to two extremes, the two symmetrical magnetic attraction blocks one 416 on the linkage shaft 415 are sequentially rotated to positions close to the magnetic attraction blocks two 421, and therefore under the magnetic attraction of the two corresponding magnetic attraction blocks one 416 on the linkage shaft 415, the two magnetic attraction blocks two 421 can be pulled away from each other, and under the limitation of the limiting sliding groove 14, the two magnetic attraction blocks two 421 drive the two locking toothed plates 422 to synchronously and stably move away from each other, that is, the clamping on the connecting toothed plate 423 is released, so that the sensor 2 can be quickly removed by the staff.

[0034] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wind turbine generator set nacelle vibration detection device, comprising a mounting assembly (1), characterized in that: The top of the mounting assembly (1) is connected with a sensor (2), and the inside of the mounting assembly (1) is provided with a fastening bolt (3) and a connecting mechanism (4); The connecting mechanism (4) comprises a locking assembly (41) movably mounted in the inside of the mounting assembly (1), the middle part of the locking assembly (41) is connected with a control assembly (42), the control assembly (42) comprises two left and right magnetic blocks two (421) connected to the middle part of the locking assembly (41), the opposite surfaces of the two magnetic blocks two (421) are fixedly connected with a locking tooth plate (422), and the connecting tooth plate (423) is arranged between the two locking tooth plates (422); the upper end of the connecting tooth plate (423) penetrates through the connecting mechanism (4) and extends to the upper side of the mounting assembly (1) and is fixedly connected to the bottom of the sensor (2); the opposite surfaces of the locking tooth plate (422) and the connecting tooth plate (423) are engaged with each other, and the two magnetic blocks two (421) and the locking tooth plate (422) move relatively along the inside of the mounting assembly (1) following the locking assembly (41).

2. The wind turbine generator set nacelle vibration detection device according to claim 1, characterized in that: The opposite surfaces of the locking tooth plate (422) and the connecting tooth plate (423) are provided with teeth in a triangular shape, the inclined surface of the triangular teeth on the locking tooth plate (422) is inclined upward, and the inclined surface of the triangular teeth on the connecting tooth plate (423) is inclined downward.

3. The wind turbine generator set nacelle vibration detection device according to claim 1, characterized in that: The mounting assembly (1) comprises a mounting block (11) arranged at the bottom of the sensor (2), the middle part of the mounting block (11) is provided with a linkage cavity (13), the inside of the mounting block (11) is provided with a limiting sliding groove (14) located at the bottom of the linkage cavity (13), the bottoms of the magnetic blocks two (421) and the locking tooth plate (422) are slidably connected in the inside of the limiting sliding groove (14), and the inside of the mounting block (11) is provided with two limiting cavities (12) located on the outside of the linkage cavity (13) and axially symmetrical.

4. A wind turbine generator unit nacelle vibration detection device according to claim 3, characterized in that: The locking assembly (41) comprises a control ring (411) rotatably sleeved on the side surface of the mounting block (11), the inside of the linkage cavity (13) movably sleeved with a transmission internal gear (412), the inside of the limiting cavity (12) slidably connected with a limiting connecting rod (413), and the two ends of the limiting connecting rod (413) are fixedly connected between the control ring (411) and the transmission internal gear (412).

5. A wind turbine generator unit nacelle vibration detection device according to claim 4, characterized by: The inside of the transmission internal gear (412) is engaged with two transmission external gears (414) symmetrical to each other, the top of the transmission external gear (414) extends to the upper side of the transmission internal gear (412) and is fixedly connected with a linkage shaft (415), the top of the linkage shaft (415) is fixedly connected with a positioning shaft (417), and the positioning shaft (417) is rotatably sleeved in the inside of the mounting block (11).

6. A wind turbine generator unit nacelle vibration detection device according to claim 5, characterized by: The outer surface of the linkage shaft (415) is fixedly connected with two symmetrical magnetic blocks one (416), one of the magnetic blocks one (416) and the magnetic blocks two (421) are attracted to each other, and the other magnetic blocks one (416) and the magnetic blocks two (421) are repelled to each other.

7. A wind turbine generator unit nacelle vibration detection device according to claim 5, characterized by: The arc length dimension of the limiting connecting rod (413) following the movement of the control ring (411) in the limiting cavity (12) is half of the circumference of the transmission outer gear (414), and friction exists between the outer surface of the control ring (411) and the inner wall of the mounting assembly (1).

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