Wind driven generator with cabin stopping function

Abstract

The utility model relates to the technical field of wind driven generators, and aims to solve the technical problem of low maintenance safety. In order to solve the technical problem, the utility model provides the wind driven generator with the cabin stopping function. A plurality of kidney-shaped holes are formed in the top end of the tower barrel at intervals in the circumferential direction. The cabin is rotationally connected to the top end of the tower drum; each bolt assembly comprises a driving part and a bolt body connected with the driving part; the driving part is connected with the cabin; the driving part drives the bolt body to extend and penetrate through the bottom of the cabin, so that at least one bolt body is inserted into the kidney-shaped hole and locked with the tower drum. The bolt body extends to be inserted into the waist-shaped hole and is locked with the tower drum, so that the locking of a cabin is realized. And the driving part drives the bolt body to retract so as to unlock, and the bolt body retreats from the waist-shaped hole so as to release the locking of the cabin. According to the embodiment, the cabin can be automatically stopped and stopped, and the maintenance safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind driven generator technical field especially is a kind of wind driven generator with cabin arresting function. BACKGROUND

[0002] Wind driven generator includes tower drum, cabin and yaw system etc. Cabin is rotationally connected at the top of tower drum by yaw system, wind driven generator set is arranged in cabin, so that wind driven generator set is rotated in the process of operation to adjust the direction of machine head, so that it is aligned to the strongest wind, to improve the process of power generation efficiency. Yaw control is an important link in the operation of wind driven generator set, it directly influences power generation efficiency and the stability of unit.

[0003] But in the use process, wind driven generator set in cabin needs to be maintained regularly, or stop machine to repair wind driven generator set when fault occurs. During maintenance, repair personnel need to climb from tower drum to cabin, but once cabin rotates in the process of repair personnel climbing, it will hit repair personnel, so low safety, so a wind driven generator with arresting function needs to be designed. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model wants to solve the technical problem in the prior art to overcome the above problems existing in the prior art.

[0005] To solve the above technical problems, the utility model provides a kind of wind driven generator with cabin arresting function, comprising:

[0006] Tower drum, top end is circumferentially spaced and is equipped with multiple waist-shaped holes;

[0007] Cabin is rotationally connected at the top of tower drum;

[0008] At least one latch assembly, including driving part and the latch body connected with driving part;Driving part is connected with cabin;Driving part drives the extension of latch body to pass through the bottom of cabin, so that at least one latch body is inserted into waist-shaped hole and the locking of latch body and tower drum.

[0009] In an embodiment of the utility model, the latch assembly further includes connecting part for connecting driving part and latch body;Connecting part includes sleeve and connecting lug connected at one end of sleeve;The output shaft of driving part is detachably connected with sleeve, and connecting lug is detachably connected with one end of latch body.

[0010] In an embodiment of the utility model, the output shaft of driving part is detachably connected with sleeve by thread.

[0011] In one embodiment of the utility model, first connecting hole is equipped on the connecting ear, the end of the bolt body is equipped with connecting piece, second connecting hole is equipped on the connecting piece, first connecting hole and second connecting hole are connected through fastener.

[0012] In one embodiment of the utility model, the bolt body includes a main body and a bolt connected to the main body, the main body is connected to the driving part, the main body is located outside the waist-shaped hole, the bolt is inserted into the waist-shaped hole and locked with the tower cylinder, the length L of the waist-shaped hole is 1.5-2 times the diameter of the bolt.

[0013] In one embodiment of the utility model, the distance M between the two adjacent waist-shaped holes is 1 / 2-1 times the diameter of the bolt.

[0014] In one embodiment of the utility model, the bottom of the cabin is provided with a through hole corresponding to the bolt, the bolt is inserted into the waist-shaped hole through the through hole, the top end of the through hole is provided with a tapered guide hole in communication therewith, and the hole diameter of the top end of the tapered guide hole is larger than the hole diameter of the through hole.

[0015] In one embodiment of the utility model, the width of the waist-shaped hole is greater than the diameter of the through hole.

[0016] In one embodiment of the utility model, the application further includes a signal feedback sensor arranged on the tower cylinder and a control assembly electrically connected to the signal feedback sensor, and the signal feedback sensor is used to identify whether the bolt body is locked with the tower cylinder.

[0017] In one embodiment of the utility model, the driving part is an electric push rod.

[0018] In one embodiment of the utility model, the bolt body is a double-ball lock pin.

[0019] In one embodiment of the utility model, the driving part is an electric push rod, and the bolt body is a double-ball lock pin.

[0020] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0021] The wind driven generator with cabin locking function has the driving part of the bolt assembly arranged on the cabin, the driving part can drive the bolt body to extend and retract, when the bolt body is elongated, the bolt body is inserted into the waist-shaped hole after passing through the cabin, and the bolt body can be locked with the tower cylinder, so that the locking of the cabin is realized. When it is necessary to unlock, the driving part drives the bolt body to retract, so that the unlocking is realized, and then the bolt body is withdrawn from the waist-shaped hole, so that the locking of the cabin is released. Therefore, the embodiment can automatically lock and release the cabin, and the safety of the maintenance personnel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0023] Figure 1 This is a top view (nacelle not shown) of a wind turbine with nacelle stop function in a preferred embodiment of the present invention.

[0024] Figure 2 yes Figure 1 CC cross-sectional view of a wind turbine with nacelle stop function;

[0025] Figure 3 yes Figure 2 Enlarged view of point A;

[0026] Figure 4 yes Figure 1 A schematic diagram of the pin assembly in a wind turbine with nacelle stop function;

[0027] Figure 5 yes Figure 4 Schematic diagram of the connection between the middle connecting part drive component and the pin body Figure 1 ;

[0028] Figure 6 yes Figure 4 Schematic diagram of the connection between the middle connecting part drive component and the pin body Figure 2 ;

[0029] Explanation of reference numerals in the instruction manual's attached drawings: 100, tower; 110, oblong hole;

[0030] 200. Cabin; 210. Through hole; 220. Tapered guide hole;

[0031] 300, Pin assembly; 310, Drive unit; 320, Pin body; 321, Connector; 322, Second connecting hole; 323, Main body; 324, Pin component; 330, Connecting part; 331, Sleeve; 332, Connecting ear; 333, First connecting hole; 334, Fastener;

[0032] 400. Signal feedback sensor. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0034] Reference Figures 1-6 As shown, this utility model embodiment provides a wind turbine generator with nacelle braking function, comprising:

[0035] The tower 100 has multiple waist-shaped holes 110 spaced circumferentially at its top.

[0036] The nacelle 200 is rotatably connected to the top of the tower 100;

[0037] At least one latch assembly 300 includes a drive unit 310 and a latch body 320 connected to the drive unit 310; the drive unit 310 is connected to the nacelle 200; the drive unit 310 drives the latch body 320 to extend through the bottom of the nacelle 200 so that at least one latch body 320 is inserted into the oblong hole 110 and the latch body 320 is locked to the tower 100, thereby stopping the nacelle 200.

[0038] Specifically, in this embodiment, the drive unit 310 of the latch assembly 300 is disposed on the nacelle 200. The drive unit 310 can drive the latch body 320 to extend and retract. When the latch body 320 extends, it passes through the nacelle 200 and inserts into the oblong hole 110, and the latch body 320 can lock with the tower 100, thereby stopping the nacelle 200 and preventing the nacelle 200 from rotating when personnel enter it. When unlocking is required, the drive unit 310 drives the latch body 320 to retract, thereby unlocking it, and then the latch body 320 is withdrawn from the oblong hole 110 to release the stop on the nacelle 200. Therefore, this embodiment can automatically stop and release the nacelle 200, improving the safety of maintenance personnel.

[0039] In some embodiments, the latch assembly 300 further includes an L-shaped connecting bracket, through which the drive unit 310 is connected to the cabin 200. This embodiment allows the drive unit 310 to be fixed to the cabin 200 via the L-shaped connecting bracket, resulting in a simple connection structure.

[0040] In some embodiments, the connecting bracket further includes a reinforcing rib connected to the cabin 200, the reinforcing rib being attached to one side of the connecting bracket. The reinforcing rib provides further support to the L-shaped connecting bracket.

[0041] Furthermore, the pin assembly 300 also includes a connecting portion 330 for connecting the drive unit 310 and the pin body 320; the connecting portion 330 includes a sleeve 331 and a connecting lug 332 connected to one end of the sleeve 331; the output shaft of the drive unit 310 is detachably connected to the sleeve 331, and the connecting lug 332 is detachably connected to one end of the pin body 320. Specifically, in this embodiment, the connecting portion 330 enables the output shaft of the drive unit 310 to be detachably connected to the pin body 320, providing a reliable connection and facilitating disassembly and replacement.

[0042] Further, the output shaft of the driving part 310 is detachably connected with the sleeve 331 through threads. Specifically, the detachable connection between the output shaft of the driving part 310 and the connecting part 330 is achieved through bolt connection in the embodiment, which realizes quick mounting and dismounting, has low processing difficulty, and reduces processing cost.

[0043] Further, the connecting lug 332 is provided with a first connecting hole 333, and the end of the bolt body 320 is provided with a connecting piece 321, which is provided with a second connecting hole 322; the first connecting hole 333 and the second connecting hole 322 are connected through a fastener 334. For example, the fastener 334 is a bolt. For another example, the fastener 334 is a pin. In some embodiments, the connecting lug 332 is two, the connecting piece 321 is inserted between the two connecting lugs 332, and then the connecting piece 321 is fixed and connected through the fastener 334, which is more stable and reliable. Specifically, the detachable connection between the bolt body 320 and the connecting part 330 is achieved through the connecting lug 332, the connecting piece 321, and the fastener 334 in the embodiment, which has simple structure, is convenient for mounting and dismounting, and has low cost.

[0044] Further, the bolt body 320 includes a main body 323 and a bolt piece 324 connected with the main body 323, the main body 323 is connected with the driving part 310, the main body 323 is located outside the waist-shaped hole 110, the bolt piece 324 is inserted into the waist-shaped hole 110 and is locked with the tower 100; the length L of the waist-shaped hole 110 is 1.5-2 times the diameter D of the bolt piece 324. Specifically, the length of the waist-shaped hole 110 is limited in the embodiment, so if the bolt piece 324 fails during the stopping process, the bolt piece 324 will move in the waist-shaped hole 110, and the movement range is 0.5 D-1 D, which is relatively small and can be ignored, thereby further ensuring the stopping effect.

[0045] Further, the distance M between the two adjacent waist-shaped holes 110 is 1 / 2-1 times the diameter of the bolt piece 324. Specifically, the embodiment can ensure the connection strength, and if the bolt piece 324 is located between the two adjacent waist-shaped holes 110, the cabin 200 can slightly rotate, and the bolt piece 324 can enter the waist-shaped hole 110, thereby improving the locking efficiency.

[0046] Further, the bottom of the cabin 200 is provided with a through hole 210 corresponding to the bolt piece 324; the bolt piece 324 is elongated to pass through the through hole 210 and is inserted into the waist-shaped hole 110; the top end of the through hole 210 is provided with a tapered guide hole 220 in communication with the through hole 210, and the hole diameter of the top end of the tapered guide hole 220 is larger than the hole diameter of the through hole 210. The through hole 210 and the waist-shaped hole 110 are coaxially arranged. Specifically, the tapered guide hole 220 arranged in the through hole 210 in the embodiment can guide the entry of the bolt body 320, thereby facilitating the bolt body 320 to quickly and smoothly pass through the through hole 210.

[0047] Further, the width B of the waist-shaped hole 110 is greater than the diameter of the through hole 210. Specifically, the bolt body 320 can be ensured to smoothly enter the waist-shaped hole 110 after passing through the through hole 210.

[0048] Further, the application also comprises a signal feedback sensor 400 arranged on the tower drum 100 (for example, the signal feedback sensor 400 is arranged at a position close to the waist-shaped hole 110 in the lower edge surface of the tower drum 100) and a control assembly electrically connected with the signal feedback sensor 400; the signal feedback sensor 400 is used to identify whether the bolt body 320 and the tower drum 100 are locked. Specifically, the embodiment can identify the signal whether the bolt 324 and the tower drum 100 are locked, and transmit the signal to the maintenance personnel through the control assembly. After receiving the signal feedback, the maintenance personnel can control and adjust the driving part 310 through the control assembly to ensure that the bolt body 320 is inserted into the waist-shaped hole 110 and locked with the tower drum 100. Until the locking signal is obtained, the maintenance personnel can go up the tower for maintenance. The embodiment can provide the maintenance personnel on the ground with the exact locking signal through the signal feedback, and then the maintenance personnel can implement the work, further improving the safety of maintenance.

[0049] Further, the driving part 310 is an electric push rod. Specifically, the embodiment can realize the movement and stop of the bolt body 320 through on-off electricity, or adjust the movement stroke of the bolt body 320 through adjusting the current or voltage, which is more controllable.

[0050] Further, the bolt body 320 is a double-ball lock pin. Specifically, the ball of the double-ball lock pin directly clamps the lower surface of the tower drum 100 after extending, so that the friction force between the ball and the lower surface of the tower drum 100 realizes locking, so as to stop the nacelle 200. For example, the signal feedback sensor 400 can be a pressure sensor, which judges whether it is locked by monitoring the size of the acting force between the lower surface of the tower drum 100 and the ball. For another example, the signal feedback sensor 400 can be a proximity switch, which identifies the depth of the bolt 324 inserted into the waist-shaped hole 110 or the length of the bolt 324 extending out of the lower surface of the tower drum 100 through the proximity switch, so as to judge whether it is locked.

[0051] Further, the driving part 310 is an electric push rod; the bolt body 320 is a double-ball lock pin. The beneficial effects of the embodiment are the same as those of the above-mentioned embodiments, which will not be described here.

[0052] Obviously, the above embodiments are only examples for clearly illustrating the present application, and are not intended to limit the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A wind power generator having a nacelle stop function, characterized by: The utility model relates to a wind turbine, comprising: a tower barrel, a plurality of waist-shaped holes are circumferentially and spaced apart at the top end of the tower barrel; a nacelle, which is rotatably connected to the top end of the tower barrel; at least one latch assembly, which comprises a driving part and a latch body connected to the driving part; the driving part is connected to the nacelle; the driving part is configured to drive the latch body to extend so that at least one of the latch bodies is inserted into the waist-shaped hole and the latch body is locked with the tower barrel.

2. Wind driven generator with nacelle arresting function according to claim 1, characterized in that The latch assembly further comprises a connecting part for connecting the driving part and the latch body; the connecting part comprises a sleeve and a connecting lug connected to one end of the sleeve; the output shaft of the driving part is detachably connected to the sleeve, and the connecting lug is detachably connected to one end of the latch body.

3. Wind driven generator with nacelle arresting function according to claim 2, characterized in that: The output shaft of the driving part is detachably connected to the sleeve by threads.

4. A wind power generator having a nacelle stop function according to claim 2, characterized in that: A first connecting hole is provided on the connecting lug; an end portion of the latch body is provided with a connecting piece, and a second connecting hole is provided on the connecting piece; the first connecting hole and the second connecting hole are connected by a fastener.

5. The wind power generator having the nacelle stop function according to claim 1, characterized by: The latch body comprises a main body and a latch piece connected to the main body; the main body is connected to the driving part, the main body is located outside the waist-shaped hole, and the latch piece is inserted into the waist-shaped hole and locked with the tower barrel; the length L of the waist-shaped hole is 1.5-2 times the diameter of the latch piece.

6. Wind driven generator with nacelle arresting function according to claim 5, characterized in that: The distance M between the two adjacent waist-shaped holes is 1 / 2-1 times the diameter of the latch piece.

7. A wind power generator having a nacelle stop function according to claim 5, characterized in that: A through hole corresponding to the latch piece is provided at the bottom of the nacelle; the latch piece is inserted into the waist-shaped hole through the through hole; a tapered guide hole is provided at the top end of the through hole and communicates with the through hole; the hole diameter at the top end of the tapered guide hole is larger than the hole diameter of the through hole.

8. Wind driven generator with nacelle arresting function according to claim 7, characterized in that: The width of the waist-shaped hole is greater than the diameter of the through hole.

9. The wind power generator having the nacelle stop function according to claim 1, characterized by: Further comprising a signal feedback sensor provided on the tower barrel and a control assembly electrically connected to the signal feedback sensor; the signal feedback sensor is used to identify whether the latch body is locked with the tower barrel.

10. A wind power generator having a nacelle stop function according to claim 1, characterized in that: The driving part is an electric push rod; and / or, the latch body is a double-ball latch pin.

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