CN213627858U

CN213627858U - Mechanical brake device of wind driven generator

Info

Publication number: CN213627858U
Application number: CN202022935553.XU
Authority: CN
Inventors: 孙瑞豪; 郭雪硕; 王薪贺; 顾珏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-06
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a aerogenerator's mechanical brake device, which comprises a supporting column, the top of support column is fixed with the backup pad, the top of backup pad is fixed with first pivot, the top of first pivot is rotated and is connected with the carousel, the spout has been seted up to the bottom of carousel, the inside of spout is fixed with the ring gear, the installation of backup pad has first motor, fixed the cup jointing has the gear on the output shaft of first motor, gear and ring gear meshing transmission, the top of carousel is fixed with first casing, one side of the inside of first casing is fixed with the generator, install the main shaft through the shaft coupling on the input shaft of generator, the main shaft runs through first casing and is connected with the paddle, fixed cup jointing has first belt pulley on the main shaft. Compared with the prior art, the utility model discloses simple structure convenient to use brakes aerogenerator's paddle through multiple mode combination, has improved the stability of aerogenerator brake greatly.

Description

Mechanical brake device of wind driven generator

Technical Field

The utility model relates to a wind power generation technical field especially relates to a aerogenerator's mechanical brake device.

Background

Wind power generation refers to converting kinetic energy of wind into electric energy. Wind energy is a clean and pollution-free renewable energy source, and is used by people for a long time, mainly by pumping water, grinding surfaces and the like through windmills, and people are interested in how to use wind to generate electricity. The wind power generation is very environment-friendly, and the wind energy is huge, so that the wind power generation is increasingly paid attention by various countries in the world.

In the process of wind power generation, because the rotational inertia of an impeller of a wind driven generator is far greater than that of the generator, an extra brake is needed to be used for decelerating and braking the impeller of the generator, the existing brake is complex in structure and not easy to maintain, and the use is insufficient, so that the mechanical brake device of the wind driven generator is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a mechanical brake device of a wind driven generator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mechanical brake device of aerogenerator, includes the support column, the top of support column is fixed with the backup pad, the top of backup pad is fixed with first pivot, the top of first pivot is rotated and is connected with the carousel, the spout has been seted up to the bottom of carousel, the inside of spout is fixed with the ring gear, the installation of backup pad has first motor, fixed cover has connect the gear on the output shaft of first motor, gear and ring gear meshing transmission, the top of carousel is fixed with first casing, one side of the inside of first casing is fixed with the generator, install the main shaft through the shaft coupling on the input shaft of generator, the main shaft runs through first casing and is connected with the paddle, fixed cover has connected with first belt pulley on the main shaft, the internally mounted of first casing has arrestment mechanism, the internal rotation of first casing is connected with the second pivot, the second rotating shaft is inserted into the braking mechanism and connected with a brake disc, a second belt pulley is fixedly sleeved on the second rotating shaft, and a belt is installed between the first belt pulley and the second belt pulley.

Preferably, a T-shaped rod is fixed at the top of the supporting plate, and the T-shaped rod is inserted into the bottom of the rotary table and is connected with the rotary table in a sliding manner.

Preferably, the main shaft is parallel to the second rotating shaft, and the brake disc and the second belt pulley are coaxial.

Preferably, the braking mechanism comprises a second shell fixed inside the first shell, the second shell is rotatably connected with the second rotating shaft, a second motor is installed on the side surface of the second shell, an output shaft of the second motor is inserted into the second shell and connected with a lead screw, two ends of the lead screw are both connected with threaded blocks through threads, a fixing frame is fixed at the bottom of each threaded block, and a braking piece is fixed on the side surface of the fixing frame.

Preferably, the thread directions of the threads at the two ends of the screw rod are opposite.

Preferably, the inside of second casing is fixed with the guiding axle, the both ends of guiding axle are all fixed the cup joint and are had the spacing ring, guiding axle and screw thread piece sliding connection, install the spring between the screw thread piece, the spring cup joints on the guiding axle.

Compared with the prior art, the beneficial effects of the utility model are that:

when the utility model is used, the wind blows the paddle to rotate, the paddle drives the input shaft of the generator to rotate through driving the main shaft, the generator is generated through the output shaft of the generator, in the process, the main shaft drives the first belt pulley to rotate, the first belt pulley drives the second belt pulley through the belt, the second belt pulley drives the brake disc to rotate through the second rotating shaft, when the wind generator needs to be stopped, firstly, an operator starts the first motor, the output shaft of the first motor rotates to drive the gear, the gear drives the gear ring to rotate through meshing transmission, the gear ring drives the turntable to rotate by taking the first rotating shaft as the circle center, the turntable drives the paddle through the main shaft, the tangential angle between the paddle and the wind direction is adjusted, the running speed of the paddle is reduced, then, the second motor is started, the output shaft of the second motor drives the lead screw to rotate, the lead screw drives the thread block, the thread turning directions of threads at two ends of the screw rod are opposite, the two thread blocks are close to each other, the thread blocks slide on the guide shaft and compress the spring in the process, the thread blocks drive the fixing frame, the fixing frame drives the brake pad to be close to the brake disc, the brake disc is decelerated through the friction force between the brake pad and the brake disc, the brake mechanism decelerates the second rotating shaft through the brake disc, then the second belt pulley decelerates the first belt pulley through the belt, and the first belt pulley decelerates the main shaft, so that the blades are decelerated slowly;

to sum up, compare in prior art, the utility model discloses simple structure convenient to use brakes aerogenerator's paddle through multiple mode combination, has improved the stability of aerogenerator brake greatly.

Drawings

Fig. 1 is a side view of a mechanical brake device of a wind turbine according to the present invention;

fig. 2 is an installation schematic view of a turntable of a mechanical brake device of a wind driven generator according to the present invention;

fig. 3 is an installation schematic view of a main shaft of a mechanical brake device of a wind driven generator according to the present invention;

fig. 4 is an installation schematic diagram of a braking mechanism of a mechanical brake device of a wind turbine generator according to the present invention.

In the figure: the brake comprises a support column 1, a support plate 2, a first rotating shaft 3, a rotating disc 4, a sliding chute 5, a gear ring 6, a first motor 7, a gear 8, a first shell 9, a motor 10, a main shaft 11, a blade 12, a first belt pulley 13, a sleeve 14, a brake mechanism 15, a second shell 151, a second motor 152, a screw rod 153, a threaded block 154, a fixed mount 155, a brake pad 156, a guide shaft 157, a limit ring 158, a spring 159, a second rotating shaft 16, a second belt pulley 17, a belt 18 and a brake disc 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a mechanical brake device of a wind power generator includes a support pillar 1, a support plate 2 is fixed on the top of the support pillar 1, a first rotating shaft 3 is fixed on the top of the support plate 2, a rotating disc 4 is rotatably connected on the top of the first rotating shaft 3, a chute 5 is formed at the bottom of the rotating disc 4, a gear ring 6 is fixed inside the chute 5, a first motor 7 is installed on the support plate 2, a gear 8 is fixedly sleeved on an output shaft of the first motor 7, the gear 8 is in meshing transmission with the gear ring 6, a first housing 9 is fixed on the top of the rotating disc 4, a generator 10 is fixed on one side inside the first housing 9, a main shaft 11 is installed on an input shaft of the generator 10 through a coupler, the main shaft 11 penetrates through the first housing 9 and is connected with a paddle 12, a first belt pulley 13 is fixedly sleeved on the main shaft 11, a brake mechanism 15 is installed inside the first housing 9, the second rotating shaft 16 is inserted into the braking mechanism 15 and connected with a brake disc 19, a second belt pulley 17 is fixedly sleeved on the second rotating shaft 16, and a belt 18 is arranged between the first belt pulley 13 and the second belt pulley 17.

In one embodiment, a T-bar is fixed to the top of the supporting plate 2, and the T-bar is inserted into the bottom of the rotating disk 4 and slidably connected to the rotating disk 4.

In one embodiment, the main shaft 11 is parallel to the second rotating shaft 16, and the brake disk 19 is coaxial with the second pulley 17.

As an embodiment, the brake mechanism 15 includes a second housing 151 fixed inside the first housing 9, the second housing 151 is rotatably connected to the second rotating shaft 16, a second motor 152 is installed on a side surface of the second housing 151, an output shaft of the second motor 152 is inserted into the second housing 151 and connected to a screw rod 153, both ends of the screw rod 153 are connected to a screw block 154 through threads, a fixing frame 155 is fixed to a bottom of the screw block 154, and a brake pad 156 is fixed to a side surface of the fixing frame 155.

In one embodiment, the threads at the two ends of the screw rod 153 are opposite in thread direction.

In one embodiment, a guide shaft 157 is fixed inside the second housing 151, a limit ring 158 is fixedly sleeved on both ends of the guide shaft 157, the guide shaft 157 is slidably connected with a threaded block 154, a spring 159 is installed between the threaded blocks 154, and the spring 159 is sleeved on the guide shaft 157.

The working principle is as follows: when the wind driven generator needs to be stopped, firstly an operator starts the first motor 7, the output shaft of the first motor 7 rotates to drive the gear 8, the gear 8 drives the gear ring 6 to rotate through meshing transmission, the gear ring 6 drives the rotary table 4 to rotate by taking the first rotating shaft 3 as a circle center, the rotary table 4 drives the blades 12 through the main shaft 11, the tangential angle between the blades 12 and the wind direction is adjusted, the running speed of the blades 12 is reduced, then the second motor 152 is started, the output shaft of the second motor 152 drives the screw rod 153 to rotate, the screw rod 153 drives the screw blocks 154 through screw transmission, the two screw blocks 154 approach each other due to opposite screw thread directions of screw threads at two ends of the screw rod 153, in the process, the screw blocks 154 slide on the guide shaft 157 and compress the spring 159, the screw blocks 154 drive the fixing frame 155, the fixing frame 155 drives the brake pads 156 to approach the brake disc 19, the brake disc 19 is decelerated through friction force between the brake pads 156 and the brake disc 19, the brake mechanism 15 decelerates the second rotating shaft 16 through the brake disc 19, then the second belt pulley 17 decelerates the first belt pulley 13 through the belt 18, and the first belt pulley 13 decelerates the main shaft 11, so that the blades 12 are decelerated slowly;

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a mechanical brake device of aerogenerator, includes support column (1), its characterized in that, the top of support column (1) is fixed with backup pad (2), the top of backup pad (2) is fixed with first pivot (3), the top of first pivot (3) is rotated and is connected with carousel (4), spout (5) have been seted up to the bottom of carousel (4), the inside of spout (5) is fixed with ring gear (6), the installation of backup pad (2) has first motor (7), the fixed cover of being connected with on the output shaft of first motor (7) has gear (8), gear (8) and ring gear (6) meshing transmission, the top of carousel (4) is fixed with first casing (9), one side of the inside of first casing (9) is fixed with generator (10), main shaft (11) are installed through the shaft coupling on the input shaft of generator (10), main shaft (11) run through first casing (9) and are connected with paddle (12), fixed cover has been gone up in main shaft (11) and has been connect first belt pulley (13), the internally mounted of first casing (9) has arrestment mechanism (15), the inside rotation of first casing (9) is connected with second pivot (16), second pivot (16) insert the inside of arrestment mechanism (15) and are connected with brake disc (19), fixed cover has been connected with second belt pulley (17) on second pivot (16), install belt (18) between first belt pulley (13) and second belt pulley (17).

2. Mechanical brake device for wind power generator according to claim 1, characterized in that a T-shaped rod is fixed on the top of the support plate (2), and the T-shaped rod is inserted into the bottom of the rotary disc (4) and is connected with the rotary disc (4) in sliding mode.

3. Mechanical brake device for wind power generator according to claim 1, characterized in that said main shaft (11) is parallel to said second rotation shaft (16) and said brake disc (19) is coaxial with said second pulley (17).

4. The mechanical brake device of the wind driven generator according to claim 1, wherein the brake mechanism (15) comprises a second housing (151) fixed inside the first housing (9), the second housing (151) is rotatably connected with the second rotating shaft (16), a second motor (152) is installed on a side surface of the second housing (151), an output shaft of the second motor (152) is inserted into the second housing (151) and connected with a lead screw (153), both ends of the lead screw (153) are connected with thread blocks (154) through threads, a fixing frame (155) is fixed at the bottom of the thread blocks (154), and a brake pad (156) is fixed on a side surface of the fixing frame (155).

5. Mechanical brake device for wind power generator according to claim 4, characterized in that the threads of the screw rod (153) are opposite in thread direction.

6. The mechanical brake device of the wind driven generator according to claim 4, wherein a guide shaft (157) is fixed inside the second housing (151), both ends of the guide shaft (157) are fixedly sleeved with a limit ring (158), the guide shaft (157) is slidably connected with a threaded block (154), a spring (159) is installed between the threaded blocks (154), and the spring (159) is sleeved on the guide shaft (157).