Wind power tower cylinder bolt protection monitoring device

Abstract

The utility model discloses a wind power tower cylinder bolt protection monitoring device in the technical field of wind power generation, which comprises two groups of tower cylinder flange plates, the two groups of tower cylinder flange plates are connected through a plurality of bolt assemblies, the top of each bolt assembly is provided with a laser emission assembly, and the laser emission assembly is located at the top of the tower cylinder flange plate at the upper end. A laser receiving assembly is arranged at the bottom of the bolt assembly and located at the bottom of the lower end tower drum flange plate. The bolt assembly, the laser emitting assembly and the laser receiving assembly are arranged in a matched mode, whether the bolt head and the nut rotate relative to each other or not is judged by judging whether the position of a laser signal changes or not, and therefore the loosening condition of the wind power tower cylinder bolt is monitored, and maintenance can be conducted in time when the bolt is loosened; and smooth operation of the wind turbine generator is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wind power generation, especially to a wind power tower drum bolt protection monitoring device. BACKGROUND

[0002] At present, offshore wind power develops rapidly in China, and coastal provinces are developing offshore wind power generation. Wind turbine generators are becoming larger and larger, and the diameter of the wind turbine tower drum is increasing. Because the flange thickness of the tower drum is thin, the torque method is usually used to install conventional bolts at present in China, but the high-strength bolts of the wind turbine tower drum are a blind area for monitoring defects of the wind turbine tower drum. Once the bolts loosen, the damage to the running wind turbine will be very serious and irreversible.

[0003] At present, there is no single monitoring device for the bolts of the wind turbine tower drum, which cannot timely warn of the loosening of the bolts and has a great safety hazard. Based on this, the wind power tower drum bolt protection monitoring device is proposed. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the above-mentioned problem that there is no single monitoring device for the bolts of the wind turbine tower drum, which cannot timely warn of the loosening of the bolts and has a great safety hazard, the utility model provides a wind power tower drum bolt protection monitoring device.

[0005] The utility model provides a wind power tower drum bolt protection monitoring device, adopts the following technical scheme:

[0006] A wind power tower drum bolt protection monitoring device, comprising two groups of tower drum flanges, the two groups of tower drum flanges are connected through a plurality of bolt assemblies, the top of the bolt assembly is provided with a laser emission assembly, and the laser emission assembly is located at the top of the upper end tower drum flange, the bottom of the bolt assembly is provided with a laser receiving assembly, and the laser receiving assembly is located at the bottom of the lower end tower drum flange.

[0007] Through the above technical scheme, the tower drum flange is first fixedly connected through a plurality of bolt assemblies, the laser emission assembly emits a laser signal, and the laser receiving assembly receives the laser signal, so that whether the bolt assembly rotates and loosens can be monitored in real time. When the bolt assembly loosens and causes the tower drum flange to be not tightly connected, the laser receiving assembly cannot receive the laser signal and generates an alarm to prevent accidents.

[0008] Optionally, the bolt assembly comprises a screw rod, the screw rod is arranged in the interior of the two groups of tower drum flanges, the top of the screw rod is connected with a bolt head, and the bottom of the screw rod extends out of the lower end tower drum flange and is screwed with a nut.

[0009] Through the above technical scheme, the nut is screwed on the outside of the screw rod, and the two groups of tower drum flanges can be fixedly connected.

[0010] Optionally, the bolt head and the nut are provided with a gasket on the side close to the flange plate of the tower drum.

[0011] By adopting the above technical scheme, the gasket can increase the stress area, thereby reducing the pressure intensity on the flange plate of the tower drum under the condition of a certain pressure, and protecting the surface of the flange plate of the tower drum from being damaged.

[0012] Optionally, the laser emitting assembly comprises a bolt fixing clamp, the bolt fixing clamp is sleeved on the outside of the bolt head, the outside of the bolt fixing clamp is connected with a first extension arm, and the bottom of the side away from the bolt fixing clamp of the first extension arm is provided with a laser emitter.

[0013] By adopting the above technical scheme, the laser emitter can be fixedly installed on the outside of the bolt head through the bolt fixing clamp, and the laser signal can be emitted through the laser emitter.

[0014] Optionally, the laser receiving assembly comprises a nut fixing clamp, the nut fixing clamp is sleeved on the outside of the nut, the outside of the nut fixing clamp is connected with a second extension arm, and the top of the side away from the nut fixing clamp of the second extension arm is provided with a laser receiver.

[0015] By adopting the above technical scheme, the laser receiver can be fixedly installed on the outside of the nut through the nut fixing clamp, and the laser signal can be received through the laser receiver.

[0016] Optionally, the first extension arm and the second extension arm are made of steel material, and the thickness of the first extension arm and the second extension arm is 5-8 mm.

[0017] By adopting the above technical scheme, the first extension arm and the second extension arm have certain corrosion resistance, so that the first extension arm and the second extension arm are more durable.

[0018] Optionally, the number of the laser emitting assemblies and the laser receiving assemblies is eight, and the eight laser emitting assemblies and the laser receiving assemblies are annularly arranged about the center of the flange plate of the tower drum.

[0019] By adopting the above technical scheme, the eight laser emitting assemblies and the laser receiving assemblies are cooperated with each other to monitor the loosening of the wind power tower drum bolt, so that the wind power tower drum bolt can be timely repaired when it is loosened.

[0020] In summary, the utility model has at least one of the following beneficial effects:

[0021] The bolt head and the nut are judged to be mutually rotated or not by judging whether the position of the laser signal changes or not, the loosening condition of the bolt of the wind power tower drum is monitored, and the bolt can be repaired in time when it is loosened, so that the smooth operation of the wind turbine is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0023] Figure 1 It is a whole structure schematic view of the present application;

[0024] Figure 2 It is a bolt laser emitting assembly structure schematic view of the present application;

[0025] Figure 3 It is a nut laser receiving assembly structure schematic view of the present application.

[0026] In the figure: 1, tower drum flange plate; 2, bolt assembly; 21, bolt head; 22, screw rod; 23, gasket; 24, nut; 3, laser emitting assembly; 31, bolt fixing clamp; 32, first extension arm; 33, laser emitter; 4, laser receiving assembly; 41, nut fixing clamp; 42, second extension arm; 43, laser receiver. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings Figures 1-3 The present application will be further described in detail.

[0028] Please refer to the drawings in the specification Figure 1 The present application provides an embodiment: a wind power tower drum bolt protection monitoring device, comprising two groups of tower drum flange plates 1, the two groups of tower drum flange plates 1 are connected by a plurality of bolt assemblies 2, the bolt assembly 2 comprises a screw rod 22, the screw rod 22 is arranged in the inside of the two groups of tower drum flange plates 1, the top of the screw rod 22 is connected with a bolt head 21, the bottom of the screw rod 22 extends out of the lower end tower drum flange plate 1 and is screwed with a nut 24. The nut 24 is screwed on the outside of the screw rod 22, and then the two groups of tower drum flange plates 1 can be fixedly connected. The bolt head 21 and the nut 24 are arranged with gaskets 23 on the side close to the tower drum flange plate 1. The gasket 23 can increase the stress area, thereby reducing the pressure intensity of the tower drum flange plate 1 under the condition of certain pressure, and protecting the surface of the tower drum flange plate 1 from being damaged.

[0029] Please refer to the drawings in the specification Figure 1 and Figure 2 The top of the bolt assembly 2 is provided with a laser emission assembly 3, and the laser emission assembly 3 is located at the top of the upper end tower flange 1. The laser emission assembly 3 comprises a bolt fixing clamp 31, the bolt fixing clamp 31 is sleeved on the outside of the bolt head 21, the outside of the bolt fixing clamp 31 is connected with a first extension arm 32, and the bottom of the side away from the bolt fixing clamp 31 of the first extension arm 32 is provided with a laser emitter 33. The laser emitter 33 can be fixedly installed on the outside of the bolt head 21 through the bolt fixing clamp 31, and the laser signal can be emitted through the laser emitter 33.

[0030] Please refer to the drawings in the specification Figure 1 and Figure 3 The bottom of the bolt assembly 2 is provided with a laser receiving assembly 4, and the laser receiving assembly 4 is located at the bottom of the lower end tower flange 1. The laser receiving assembly 4 comprises a nut fixing clamp 41, the nut fixing clamp 41 is sleeved on the outside of the nut 24, the outside of the nut fixing clamp 41 is connected with a second extension arm 42, and the top of the side away from the nut fixing clamp 41 of the second extension arm 42 is provided with a laser receiver 43. The laser receiver 43 can be fixedly installed on the outside of the nut 24 through the nut fixing clamp 41, and the laser signal can be received through the laser receiver 43.

[0031] Please refer to the drawings in the specification Figure 1 The number of the laser emission assembly 3 and the laser receiving assembly 4 is eight, and the eight laser emission assemblies 3 and the laser receiving assemblies 4 are arranged in a ring shape about the center of the tower flange 1. The eight laser emission assemblies 3 and the laser receiving assemblies 4 cooperate with each other to monitor the loosening of the wind turbine tower bolt, so that timely maintenance can be performed when the bolt is loosened.

[0032] Please refer to the drawings in the specification Figure 2 and Figure 3 The first extension arm 32 and the second extension arm 42 are made of steel material, and the thickness of the first extension arm 32 and the second extension arm 42 is 5-8mm. The first extension arm 32 and the second extension arm 42 have certain corrosion resistance, so that the first extension arm 32 and the second extension arm 42 are more durable.

[0033] Working principle: in use, first need to be fixed connection through several bolt assembly 2 tower drum flange plate 1, second respectively laser transmitter 33 and laser receiver 43 are fixed on the bolt head 21 and nut 24 through bolt fixed clamp 31 and nut fixed clamp 41, then open laser transmitter 33 and laser receiver 43, laser transmitter 33 is used for emitting laser signal, laser receiver 43 is used for receiving laser signal, through laser transmitter 33 and laser receiver 43 cooperate with each other real-time monitoring bolt head 21 and nut 24 whether mutual rotation causes loosening, when bolt assembly 2 appears loosening, causes the tower drum flange plate 1 to be not close tightly, laser receiver 43 cannot receive laser signal and thus produces alarm, to prevent the occurrence of accident.

[0034] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the scope of protection of the present application.

Claims

1. A wind turbine tower bolt protection monitoring device, comprising two groups of tower flanges (1), characterized in that: Two groups of tower flange (1) between the bolt assembly (2) connection, the bolt assembly (2) is provided with laser emission assembly (3) on the top, and the laser emission assembly (3) is located in the top of the upper end tower flange (1), the bottom of the bolt assembly (2) is provided with laser receiving assembly (4), and the laser receiving assembly (4) is located in the bottom of the lower end tower flange (1).

2. The wind turbine tower bolt protection monitoring device of claim 1, wherein: The bolt assembly (2) comprises a screw rod (22), the screw rod (22) is provided in the inside of two groups of tower flange (1), the top of the screw rod (22) is connected with the bolt head (21), the bottom of the screw rod (22) extends out of the lower end tower flange (1) and is screwed with the nut (24).

3. The wind turbine tower bolt protection monitoring device of claim 2, wherein: The bolt head (21) and nut (24) are provided with gaskets (23) on the side close to the tower flange (1).

4. The wind turbine tower bolt protection monitoring device of claim 2, wherein: The laser emission assembly (3) comprises a bolt fixing clamp (31), the bolt fixing clamp (31) is sleeved on the outside of the bolt head (21), the outside of the bolt fixing clamp (31) is connected with the first extension arm (32), the bottom of the first extension arm (32) away from the side of the bolt fixing clamp (31) is mounted with the laser emitter (33).

5. The wind turbine tower bolt protection monitoring device of claim 4, wherein: The laser receiving assembly (4) comprises a nut fixing clamp (41), the nut fixing clamp (41) is sleeved on the outside of the nut (24), the outside of the nut fixing clamp (41) is connected with the second extension arm (42), the top of the second extension arm (42) away from the side of the nut fixing clamp (41) is mounted with the laser receiver (43).

6. The wind turbine tower bolt protection monitoring device of claim 5, wherein: The first extension arm (32) and the second extension arm (42) are made of steel material, the thickness of the first extension arm (32) and the second extension arm (42) is 5-8mm.

7. The wind turbine tower bolt protection monitoring device of claim 1, wherein: The number of the laser emission assembly (3) and the laser receiving assembly (4) is eight, and the eight laser emission assemblies (3) and the laser receiving assemblies (4) are arranged in a ring shape about the center of the tower flange (1).

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