Wind driven generator

Abstract

The utility model relates to the technical field of wind driven generators, and aims to solve the technical problem of higher failure rate. In order to solve the technical problem, the utility model provides the wind driven generator. The utility model comprises: a tower drum; the cabin is connected to the top end of the tower drum; a plurality of clamping grooves are formed in the bottom of the cabin in the circumferential direction at intervals; the stop assembly comprises a vertically arranged elastic piece and a stop piece rotationally connected with the top end of the tower drum; the two ends of the elastic piece are connected with the tower drum and the retainer respectively; the driving mechanism comprises a bottom end control part and a transmission part which are connected to the bottom of the tower drum; the two ends of the transmission part are connected with the retainer and the bottom end control part correspondingly, and the elastic part deforms. The bottom end control part stops driving the retainer, and the elastic part drives the retainer to rotate reversely; and the bottom end control part drives the transmission part to move so as to drive the retainer to rotate into the clamping groove. The utility model has low failure rate.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind driven generator production technical field especially is a kind of wind driven generator. 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 to adjust the direction of machine head in the process of operation, 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, which directly affects power generation efficiency and the stability of unit.

[0003] But in the process of using, 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 and repair, maintenance personnel need to climb from tower drum to cabin, but once cabin rotates in the process of climbing of maintenance personnel, it will hit maintenance personnel, and safety is poor. Therefore, cabin needs to be stopped in advance, and the stopping structure of prior art is all electric or electromagnetic structure, not mechanical type, and its failure rate is relatively high. UTILITY MODEL CONTENTS

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the above problems existing in prior art.

[0005] To solve the above technical problems, the utility model provides a kind of wind driven generator, including:

[0006] Tower drum;

[0007] Cabin is connected at the top of tower drum;The bottom of cabin is spaced apart and is provided with a plurality of clamping grooves along its circumference;

[0008] Stopping assembly, including the elastic member of vertical arrangement and the stopping member rotationally connected with the top of tower drum;Two ends of elastic member are connected with tower drum and stopping member respectively;

[0009] Driving mechanism, including the bottom end control portion connected at the bottom of tower drum and transmission portion;Two ends of transmission portion are connected with stopping member and bottom end control portion respectively and elastic member deforms;Bottom end control portion disconnects the driving of stopping member, and elastic member drives stopping member to rotate reversely;

[0010] Wherein, bottom end control portion drives transmission portion to move, to drive stopping member to rotate to clamping groove.

[0011] In an embodiment of the utility model, stopping assembly further includes limiting piece connected with tower drum, for limiting the rotation limit of stopping member.

[0012] In one embodiment of the utility model, the bottom of cabin is provided with a plurality of vertical plates which are arranged at intervals in the circumferential direction, and a clamping groove is formed between the two adjacent vertical plates.

[0013] In one embodiment of the utility model, a back plate is connected between the two adjacent vertical plates, and the back plate is arranged on the side of the vertical plate close to the inside of the cabin.

[0014] In one embodiment of the utility model, the stop assembly further comprises a connecting plate; the connecting plate is connected with the tower drum; and the stopper is rotationally connected with the connecting plate.

[0015] In one embodiment of the utility model, the connecting plate is two, and the two connecting plates are arranged in parallel; and the stopper is rotationally connected between the two connecting plates.

[0016] In one embodiment of the utility model, the stop assembly further comprises a reinforcing member connected to the outer side of the connecting plate, and the reinforcing member is connected with the tower drum.

[0017] In one embodiment of the utility model, the bottom end control part comprises a winding drum rotationally connected with the tower drum; the transmission part comprises a steel wire rope; and the steel wire rope is wound on the winding drum.

[0018] In one embodiment of the utility model, the winding drum comprises two end plates and a central shaft rotationally connected between the two end plates; the bottom end control part further comprises a handle body and a locking member; the handle body is connected with the central shaft; and the locking member is connected with the handle body and the end plate.

[0019] In one embodiment of the utility model, two locking positions are arranged on the handle body; and in the locking position, the locking member locks the handle body and the end plate.

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

[0021] The wind driven generator can stop the cabin under maintenance and the like, and the cabin can restore the movement function when maintenance is not needed, thereby improving the safety of maintenance without affecting the normal operation of the motor; the mechanical structure is adopted to stop the cabin, so that the failure rate is relatively low, and the stop operation can be performed at the bottom end of the tower drum, thereby being more convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, in which:

[0023] Figure 1 is a structural schematic view of a wind driven generator in the preferred embodiment of the utility model;

[0024] Figure 2 is Figure 1A cross-sectional view of a wind turbine;

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

[0026] Figure 4 yes Figure 2 Enlarged view of point B;

[0027] Figure 5 yes Figure 1 A schematic diagram showing the connection between the fixed frame and the stop in a wind turbine generator;

[0028] Figure 6 yes Figure 1 A bottom view of the cabin;

[0029] Figure 7 This is a schematic diagram of the bottom operating part rotating from the starting position to the stop position;

[0030] Explanation of reference numerals in the instruction manual's attached diagrams: 100, tower;

[0031] 200. Cabin; 210. Mounting slot; 220. Vertical plate; 230. Back plate;

[0032] 300. Stop assembly; 310. Elastic element; 320. Stopping element; 330. Limiting element; 340. Fixing frame; 341. Connecting plate; 342. Rotating shaft; 343. Reinforcing element;

[0033] 400. Drive mechanism; 410. Bottom operating part; 411. Drum; 4111. End plate; 4112. Central shaft; 4113. Locking hole; 412. Handle body; 413. Locking element; 420. Transmission part. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1-7 As shown, this utility model embodiment provides a wind turbine generator, including:

[0036] Tower 100;

[0037] The nacelle 200 is connected to the top of the tower 100; the bottom of the nacelle 200 is provided with multiple locking slots 210 at intervals along its circumference.

[0038] The stop assembly 300 includes a vertically arranged elastic member 310 and a stop member 320 rotatably connected to the top end of the tower 100; the two ends of the elastic member 310 are respectively connected to the tower 100 and the stop member 320.

[0039] The driving mechanism 400 comprises a bottom end operating part 410 connected to the bottom of the tower drum 100 and a transmission part 420; the upper and lower ends of the transmission part 420 are connected to the stopper 320 and the bottom end operating part 410 respectively;

[0040] The bottom end operating part 410 drives the transmission part 420 to move, so as to drive the stopper 320 to rotate into the clamping groove 210 and the elastic member 310 to deform; the bottom end operating part 410 disconnects the driving of the stopper 320, and the elastic member 310 drives the stopper 320 to rotate reversely.

[0041] Specifically, the bottom end operating part 410 drives the transmission part 420 to move, so as to drive the stopper 320 to rotate into the clamping groove 210, and the elastic member 310 deforms at this time, thereby achieving the stop of the nacelle 200; after maintenance, the bottom end operating part 410 disconnects the driving of the stopper 320, and the elastic member 310 drives the stopper 320 to rotate reversely to the initial state when the elastic member 310 returns to the free state. As can be seen, the embodiment can stop the nacelle 200 in the case of maintenance, and the nacelle 200 can restore the movement function when it is not necessary to maintain, thereby improving the safety of maintenance without affecting the normal operation of the motor; the mechanical structure is adopted to stop the nacelle 200, so that the failure rate is relatively low, and the stop operation can be performed at the bottom end of the tower drum 100, which is more convenient.

[0042] Further, the stop assembly 300 further comprises a limiting member 330 connected to the tower drum 100, for limiting the rotation of the stopper 320. In some embodiments, the limiting member 330 is connected to the top of the connecting plate 341. Specifically, when the stopper 320 rotates to the stop position (i.e. the stopper 320 is clamped in the clamping groove 210), the stopper 320 abuts against the limiting member 330 and cannot rotate. Therefore, the limiting member 330 of the embodiment can limit the rotation stroke of the stopper 320, thereby avoiding the excessive rotation of the stopper 320 due to misoperation and thus the stopper 320 is out of the clamping groove 210.

[0043] Further, a plurality of vertical plates 220 are arranged at the bottom of the nacelle 200 in the circumferential direction, and the clamping groove 210 is formed between the adjacent two vertical plates 220. Specifically, the clamping groove 210 is formed by the arrangement of the plurality of vertical plates 220, which has a simple structure and low cost.

[0044] Further, the adjacent two vertical plates 220 are connected with a back plate 230, and the back plate 230 is arranged on the side of the vertical plate 220 close to the inside of the nacelle 200. Specifically, the back plate 230 in the embodiment can strengthen and fix the vertical plate 220, so that the structure is more stable and reliable; in addition, the back plate 230 is arranged on the inside of the nacelle 200, which does not affect the rotation of the stopper 320 into the clamping groove 210.

[0045] Further, the stop component 300 further comprises a fixing frame 340; the fixing frame 340 comprises a connecting plate 341; the connecting plate 341 is connected with the inner wall of the tower drum 100; and the stop piece 320 is rotationally connected with the connecting plate 341 through a rotating shaft 342. Specifically, the connecting plate 341 is adopted to connect the stop piece 320 with the tower drum 100 in the embodiment, and the structure is simple.

[0046] Further, the connecting plate 341 is two, and the two connecting plates 341 are arranged in parallel, and the stop piece 320 is rotationally connected between the two connecting plates 341. Specifically, the connecting plate 341 is rotationally connected between the two connecting plates 341 in the embodiment, so as to avoid the influence of sundries on the operation of the stop piece 320.

[0047] Further, the stop component 300 further comprises a reinforcing piece 343 connected outside the connecting plate 341, and the reinforcing piece 343 is connected with the inner wall of the tower drum 100. Specifically, the reinforcing piece 343 improves the stability of the fixing frame 340 in the embodiment.

[0048] Further, the bottom end control part 410 comprises a winding drum 411 rotationally connected with the tower drum 100; the transmission part 420 comprises a steel wire rope; and the steel wire rope is wound on the winding drum 411. Specifically, the height of the top end of the steel wire rope is changed by winding the steel wire rope in the embodiment, so as to drive the stop piece 320 to rotate, and the structure is simple, the operation is stable and reliable, and the cost is low.

[0049] Further, the winding drum 411 comprises two end plates 4111 and a central shaft 4112 rotationally connected between the two end plates 4111; the bottom end control part 410 further comprises a handle body 412 and a locking piece 413; the handle body 412 is connected with the central shaft 4112; and the locking piece 413 connects the handle body 412 and the end plate 4111. In some embodiments, a locking hole 4113 is arranged on the end plate 4111, the locking piece 413 is a screw, and the locking piece 413 is threadedly connected with the locking hole 4113 and the handle body 412. Specifically, the handle body 412 is adopted to more conveniently and labor-savingly control the winding drum 411 to wind the steel wire rope in the embodiment.

[0050] Further, the handle body 412 is provided with two locking positions, that is, the locking holes 4113 are two; in the locking positions, the locking piece 413 locks the handle body 412 and the end plate 4111. Specifically, the two locking positions in the embodiment are respectively a starting position M1 and a stop position M2. The starting position M1 is that the stop piece 320 locks the handle body 412 and the end plate 4111 when the stop piece 320 is driven by the elastic piece 310 to return to the initial state, at this time, the nacelle 200 can rotate relative to the tower 100. The stop position M2 is that the stop piece 320 locks the handle body 412 and the end plate 4111 when the stop piece 320 is driven by the driving mechanism 400 to rotate into the clamping groove 210, thereby stopping the nacelle 200. It can be seen that the embodiment can quickly identify whether the stop piece 320 returns to the initial state or rotates to the stop state through the two locking positions, which is convenient for operation.

[0051] Obviously, the above embodiment is only an example for clearly illustrating, and is not a limitation to the embodiments. 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, characterized by: The utility model relates to a wind turbine, including: a tower drum; a nacelle connected to the top end of the tower drum; a plurality of clamping grooves are arranged at the bottom of the nacelle in a circumferential direction; a stop assembly including an elastic member arranged vertically and a stopper rotatably connected to the top end of the tower drum; two ends of the elastic member are connected to the tower drum and the stopper respectively; a driving mechanism including a bottom end operating part connected to the bottom of the tower drum and a transmission part; the upper and lower ends of the transmission part are connected to the stopper and the bottom end operating part respectively; wherein the bottom end operating part drives the transmission part to move, so as to drive the stopper to rotate into the clamping groove and the elastic member to deform; the bottom end operating part disconnects the driving of the stopper, and the elastic member drives the stopper to rotate reversely.

2. A wind driven electric power generator as claimed in claim 1 wherein: The stop assembly further includes a limiting member connected to the tower drum, for limiting the rotation of the stopper.

3. A wind driven electric power generator as claimed in claim 2 wherein: A plurality of vertical plates are arranged at the bottom of the nacelle in a circumferential direction; the clamping grooves are formed between adjacent two vertical plates.

4. A wind driven electric power generator as claimed in claim 3 wherein: A back plate is connected between adjacent two vertical plates; the back plate is arranged on the side of the vertical plate close to the inside of the nacelle.

5. A wind driven electric power generator as claimed in claim 1, wherein: The stop assembly further includes a connecting plate; the connecting plate is rotatably connected to the tower drum and the stopper.

6. A wind driven electric power generator as claimed in claim 5 wherein: There are two connecting plates, and the two connecting plates are arranged in parallel; the stopper is rotatably connected between the two connecting plates.

7. A wind driven electric power generator as claimed in claim 6 wherein: The stop assembly further includes a reinforcing member connected to the outer side of the connecting plate; the reinforcing member is connected to the tower drum.

8. A wind driven electric power generator as claimed in claim 1 wherein: The bottom end operating part includes a winding drum rotatably connected to the tower drum; the transmission part includes a steel wire rope; the steel wire rope is wound on the winding drum.

9. A wind driven electric power generator as claimed in claim 8 wherein: The winding drum includes two end plates and a central shaft rotatably connected between the two end plates; the bottom end operating part further includes a handle body and a locking member; the handle body is connected to the central shaft; the locking member connects the handle body and the end plates.

10. A wind driven electric power generator as claimed in claim 9 wherein: Two locking positions are arranged on the handle body; in the locking positions, the locking member locks the handle body and the end plates.

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