CN209990595U

CN209990595U - Wind power generation device driven by chain wheel

Info

Publication number: CN209990595U
Application number: CN201920489342.2U
Authority: CN
Inventors: 黄钢汉; 樊百林; 王宏伟; 金松吉; 张波; 陈也
Original assignee: Beijing Keda Langdi Environmental Project & Technology Co Ltd; University of Science and Technology Beijing USTB
Current assignee: Beijing Keda Langdi Environmental Project & Technology Co Ltd; University of Science and Technology Beijing USTB
Priority date: 2019-04-11
Filing date: 2019-04-11
Publication date: 2020-01-24
Anticipated expiration: 2029-04-11

Abstract

The utility model discloses a sprocket-driven wind power generation device, which comprises a vertically arranged rotating shaft, wherein a horizontally arranged fan blade mechanism is connected in the radial direction of the rotating shaft; the lower part of the rotating shaft is fixedly connected with a main transmission shaft; the bottom of the main transmission shaft is connected with a chain disc which is horizontally arranged; the outer edge of the chain wheel is in transmission connection with a chain wheel, a rotating body is connected above the chain wheel to drive the rotating body to rotate, and the rotating body is in transmission connection with a rotor of a generator to enable the generator to generate electricity.

Description

Wind power generation device driven by chain wheel

Technical Field

The utility model relates to a wind power generation technical field, especially a sprocket feed's wind power generation set.

Background

Wind generators are devices that convert wind energy into electrical energy. The existing wind driven generator mainly comprises a vertical support, a horizontal shaft is arranged at the top end of the support, and a speed reducer and fan blades are installed on the horizontal shaft. The speed reducer of the wind driven generator with the structure is arranged at a high position, and once faults such as oil leakage and the like occur, high-altitude operation maintenance is needed, so that great repair difficulty is caused.

In addition, the speed reducer is adopted for transmission, the cost is high, the structure of the speed reducer is complex, and the speed reducer is not easy to maintain after being damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sprocket feed's wind power generation set, the convenient maintenance has simplified drive mechanism's complexity.

In order to achieve the above purpose, the utility model provides a sprocket-driven wind power generation device, which comprises a vertically arranged rotating shaft, and a horizontally arranged fan blade mechanism which is connected with the rotating shaft in the radial direction; the lower part of the rotating shaft is fixedly connected with a main transmission shaft; the bottom of the main transmission shaft is connected with a chain disc which is horizontally arranged; the outer edge of the chain wheel is in transmission connection with a chain wheel, a rotating body is connected above the chain wheel to drive the rotating body to rotate, and the rotating body is in transmission connection with a rotor of a generator to enable the generator to generate electricity.

Further, an electromagnetic clutch is connected between the sprocket and the rotating body.

Further, the sprockets and the rotating bodies are arranged in multiple groups around the chain pan.

Furthermore, the main transmission shaft is formed by butting a plurality of sections of sub-transmission shafts through connecting pieces.

Furthermore, the connecting piece comprises a connecting sleeve and a flange fixed on the outer ring of the connecting sleeve, the connecting sleeve extends into the sub-transmission shafts, and the flange is used for abutting adjacent sub-transmission shafts.

Furthermore, a support frame is arranged below the rotating shaft, and flanges at the joint of the sub transmission shafts are in rolling fit with the support frame.

Furthermore, a circle of boss is formed on the inner side of the support frame, and the lower part of the flange at the joint of each sub-transmission shaft is matched with the boss through a ball body.

Compared with the prior art, the utility model discloses a following beneficial effect has: the horizontal shaft in the prior art is changed into a vertically arranged rotating shaft, and the rotating body for driving the rotor of the generator is arranged at the bottom through the transmission of the chain wheel and the chain disc, so that the generator does not need to be operated by climbing, and is convenient to maintain. The reduction gear simple structure is compared to the drive mode of chain dish and sprocket, has reduced drive mechanism's complexity, and the chain dish can surround its outer edge and arrange multiunit sprocket and generator moreover, realizes that multiunit generator generates electricity simultaneously, has increased work efficiency.

Drawings

FIG. 1 is a schematic structural view of a sectional type vertical axis wind turbine according to an embodiment of the present invention;

fig. 2 is a schematic top view of the sliding mechanism.

In the figure: 1-a support; 2-a support; 3-a chassis; 4-steel ball; 5-chain disc; 6-chain wheel; 7-a support frame; 8-a rotating body; 10-a connector; 11-a main transmission shaft; 12-a rotating shaft; 13-a sliding mechanism; 14-fan blade; 15-a first sliding support; 16-a second sliding support; 23-a saddle frame; 71-boss; 72-a ball body; 101-connecting sleeve; 102-a flange; 110-the sub-drive shaft.

Detailed Description

The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand the invention and to implement the invention, and are not intended to limit the scope of the invention in any way.

Referring to fig. 1, an embodiment of the present invention provides a sprocket-driven wind power generation device, which includes a rotating shaft 12, a fan blade mechanism, a main transmission shaft 11, a chain plate 5, a sprocket 6, and a rotating body 8. The rotating shaft 12 is positioned at the top of the whole device and is horizontally connected with a plurality of sets of fan blade mechanisms in the radial direction. The lower part of the rotating shaft 12 is fixedly connected with a main transmission shaft 11, and the bottom of the main transmission shaft 11 is fixedly connected with a horizontally arranged chain disc 5. A plurality of chain wheels 6 are connected around the chain disc 5 along the circumferential direction in a transmission way. Each chain wheel 6 is in transmission fit with the rotating body 8 and is used for driving the rotating body 8 to rotate, and the rotating body 8 is further in transmission connection with a rotor of the generator (not shown in the figure) and drives the rotor to rotate, so that the generator can generate electricity. A chassis 3 is arranged below the chain disc 5, and the chain disc 5 is matched with the chassis 3 through a steel ball 4 in a rolling way. A support 1 is fixed below the chassis 3 and further provides support for the chain plate 5. Chain dish and sprocket cooperation transmission for the speed reducer transmission among the prior art, the structure is simpler, can arrange multiunit sprocket, rotator and generator around the chain dish moreover, has improved the generating efficiency.

Furthermore, an electromagnetic clutch (not shown in the figure) is connected between the chain wheel 6 and the rotating body 8, and when a plurality of groups of generators exist and wind power is insufficient, the electromagnetic clutch of the control part disconnects the corresponding chain wheel 6 and the corresponding rotating body 8, so that the wind power can be ensured to be enough to provide kinetic energy for the rest of the generators.

After the wind power drives the blade mechanism to rotate, power is transmitted to the rotating body 8 and the generator which are positioned at the bottom of the whole device through the rotating shaft 12, the main transmission shaft 11 and the chain disc 5, so that even if the generator fails, the generator is very convenient to maintain because the generator is positioned at the bottom.

The main transmission shaft 11 is formed by butting a plurality of sections of sub-transmission shafts through connecting pieces. As shown in fig. 1, the main rotating shaft 11 includes two sections of sub-transmission shafts 110, and a set of connecting members 10 is provided at the lower end of the upper section of sub-transmission shaft and the upper end of the lower section of sub-transmission shaft, respectively. The connecting piece comprises a connecting sleeve 101 and a flange 102 fixed on the outer ring of the connecting sleeve 101. The connection sleeve 101 may take the form of a taper sleeve or the like. The interior of the sub-transmission shaft 110 is hollow, and when the two sub-transmission shafts 110 are butted, the connecting sleeve 101 extends into the interior of the sub-transmission shaft 110 to position the connecting sleeve 101 relative to the sub-transmission shaft 110, for example, the connecting sleeve 101 and the sub-transmission shaft 110 can be welded together. The flange 102 is then butted against a flange on the other terminal drive shaft and fixed by bolts or the like. Each sub-transmission shaft 110 can be prefabricated in a factory, assembled and spliced according to the length of the main transmission shaft according to actual needs after being transported to the site, and has strong flexibility and is convenient for transportation in the early stage of construction.

The diameter of the rotating shaft 12 is larger than that of the main transmission shaft 11, and a support frame 7 is arranged below the rotating shaft 12. The inner side of the support frame 7 is kept at a distance from the main drive shaft 11. A circle of bosses 71 are formed on the inner side of the support frame 7, and the lower part of a flange 102 at the joint of each sub-transmission shaft is matched with the bosses 71 through ball bodies 72. The ball bodies 72 are arranged so that the main drive shaft 11 is supported at the joint without affecting normal rotation. Thus, the weight of the whole main transmission shaft 11 is transmitted to the support frame 7 in a segmented manner, and reliable rotation is ensured. The bottom of the support frame 7 may be further supported by the support body 2.

In this embodiment, the fan blade mechanism includes a sliding mechanism 13 horizontally arranged and a fan blade 14 slidably engaged with the sliding mechanism 13. As shown in fig. 2, the sliding mechanism 13 includes a carriage frame 23 and a first sliding support 15 and a second sliding support 16 slidably engaged with the carriage frame 23, and the first sliding support 15 and the second sliding support 16 may be slidably connected by means of a slide rail or the like configured along the carriage frame 23. The fan blade 14 is fixed on the first sliding support 15 and the second sliding support 16, and slides horizontally on the sliding support frame 23 along with the sliding supports. When the wind power is small, the fan blade 14 can slide to a position farther from the center of the specific rotating shaft 12, which is equivalent to the moment acted on the fan blade by the wind power, so that the utilization rate of the wind power and the generating efficiency are improved.

The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A wind power generation device driven by a chain wheel is characterized by comprising a rotating shaft which is vertically arranged, and a fan blade mechanism which is horizontally arranged is connected with the rotating shaft in the radial direction; the lower part of the rotating shaft is fixedly connected with a main transmission shaft; the bottom of the main transmission shaft is connected with a chain disc which is horizontally arranged; the outer edge of the chain wheel is in transmission connection with a chain wheel, a rotating body is connected above the chain wheel to drive the rotating body to rotate, and the rotating body is in transmission connection with a rotor of a generator to enable the generator to generate electricity.

2. The sprocket-driven wind power generation device according to claim 1, wherein an electromagnetic clutch is connected between the sprocket and the rotating body.

3. Sprocket driven wind power plant according to claim 1 or 2, wherein the sprockets and the rotational bodies are arranged in groups around the chain disc.

4. The sprocket-driven wind power generation device according to claim 1, wherein the main drive shaft is formed by butting a plurality of sections of sub drive shafts by connecting members.

5. The sprocket-driven wind power generation device according to claim 4, wherein the connecting member comprises a connecting sleeve and a flange fixed on the outer ring of the connecting sleeve, the connecting sleeve extends into the sub-transmission shafts, and the flange is used for abutting adjacent sub-transmission shafts.

6. The sprocket-driven wind power generation device according to claim 5, wherein a support frame is arranged below the rotating shaft, and a flange at the joint of each sub-transmission shaft is in rolling fit with the support frame.

7. The sprocket-driven wind power generation device according to claim 6, wherein a circle of bosses are formed on the inner side of the support frame, and the bosses are engaged with the flanges at the joints of the sub-transmission shafts through ball bodies.