CN216951387U

CN216951387U - Braking device for wind driven generator

Info

Publication number: CN216951387U
Application number: CN202220730300.5U
Authority: CN
Inventors: 李天宇; 李强; 吴昌书; 张国军; 王嘉源; 吴微
Original assignee: Xinjiang Haizhuang Wind Electricity Equipment Co ltd
Current assignee: Xinjiang Haizhuang Wind Electricity Equipment Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-07-12
Anticipated expiration: 2032-03-30

Abstract

The utility model relates to a braking device for a wind driven generator, which comprises a first brake sheet and a second brake sheet, wherein the first brake sheet and the second brake sheet are used for braking a power shaft of the wind driven generator, the first brake sheet and the second brake sheet are oppositely arranged, the first brake sheet and the second brake sheet are respectively hinged on a first bracket and a second bracket, and the end parts of the first bracket and the second bracket are hinged; another articulated lead screw that is connected with of tip of first support, the articulated installation of second support with lead screw complex thread block, the lead screw passes thread block is connected with power device, power device rotates and makes it first embrace the piece of stopping with the second is embraced the piece of stopping and is close to each other in order to embrace the power shaft of stopping. The utility model has simple structure, convenient maintenance and better braking effect.

Description

Braking device for wind driven generator

Technical Field

The utility model relates to the field of braking devices, in particular to a braking device for a wind driven generator.

Background

Wind energy is a renewable energy source, the wind energy is the most promising renewable energy source for scale application besides water energy, and the installed number of wind driven generators is gradually increased.

Because wind power has unstable and unpredictable, the blades need to be maintained in a reasonable rotating speed range in the working process of the wind driven generator, and when the wind speed is overlarge, the wind driven generator needs to prevent the blades from flying. When wind power exceeds the bearing limit of the blades, the wind driven generator needs to be braked to prevent the wind power from damaging the wind driven generator due to overlarge wind power, but the conventional wind driven generator braking device has a complex structure, mostly adopts hard braking, is complex to operate and is inconvenient to maintain.

Therefore, those skilled in the art are dedicated to developing a braking device for a wind power generator, which has a simple structure, is convenient to maintain, and has a good braking effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a braking device for a wind driven generator, which has a simple structure, is convenient to maintain and has a better braking effect.

The technical scheme for solving the technical problems is as follows: a braking device for a wind driven generator comprises a first brake sheet and a second brake sheet, wherein the first brake sheet and the second brake sheet are used for braking a power shaft of the wind driven generator and are arranged oppositely, the first brake sheet and the second brake sheet are respectively hinged and installed on a first support and a second support, and the end parts of the first support and the second support are hinged and connected;

another articulated lead screw that is connected with of tip of first support, the articulated second support install with lead screw complex thread piece, the lead screw passes thread piece is connected with power device, power device rotates and makes it first embrace the piece of stopping with the piece of stopping is embraced to the second and is close to each other in order to embrace the power shaft of stopping.

The beneficial effects of the utility model are: the power device rotates to drive the screw rod to rotate, so that the first support and the second support are close to each other, the first brake holding piece and the second brake holding piece which are respectively installed on the first support and the second support are close to each other, the power shaft of the wind driven generator is held and braked, the structure is simple, maintenance is convenient, and the braking effect is good.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the power device comprises a shell, a worm wheel and a worm are installed in the shell, a universal joint is installed at the output end of the worm wheel, and the universal joint is connected with the end part of the screw rod;

the input end of the worm is connected with a power assembly.

Adopt above-mentioned further scheme's beneficial effect to adopt worm wheel and worm cooperation, the power component need not power input after braking power shaft holding, and worm wheel and worm can effectually prevent the lead screw reversal to reduce the energy consumption, only need can loosen and brake with the power component reversal when loosening and braking.

Further, a hydraulic damping device is hinged between the first support and the second support.

Adopt above-mentioned further scheme's beneficial effect be that hydraulic damping device can prevent that first band-type brake piece and second band-type brake piece from contacting with the power shaft is fast hard, effectual protection band-type brake part and power shaft.

Furthermore, the end parts of the first support and the second support are connected through a connecting piece, and two ends of the connecting piece are respectively hinged with the first support and the second support.

The beneficial effect who adopts above-mentioned further scheme is that the connecting piece is convenient for with first support and second leg joint, prolongs the life of first support and second support.

Furthermore, the connecting piece is also provided with a mounting hole.

Adopt above-mentioned further scheme's beneficial effect be convenient for install arresting gear wholly in the assigned position with the mounting hole.

Further, a connecting block is hinged to the end of the first support and fixedly connected with the screw rod.

Adopt above-mentioned further scheme's beneficial effect be convenient for with lead screw and first support connection by the connecting block.

Furthermore, friction plates are arranged on the surfaces of the first brake sheet and the second brake sheet, which are in contact with the power shaft, respectively.

Adopt above-mentioned further scheme's beneficial effect be friction disc can effectual increase band-type brake piece and the power axle between the friction, further strengthen band-type brake effect.

Further, the first brake sheet and the second brake sheet are both arc-shaped.

Adopt the beneficial effect of above-mentioned further scheme to be arc type's band brake piece can effectual increase band brake piece and the power shaft between the area of contact, the reinforcing band brake effect.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a first brake pad; 2. a second brake pad; 3. a first bracket; 4. a second bracket; 5. a screw rod; 6. a thread block; 7. a housing; 8. a universal joint; 9. a hydraulic damping device; 10. a connecting member; 11. mounting holes; 12. connecting blocks; 13. a friction plate.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, a braking device for a wind driven generator comprises a first brake sheet 1 and a second brake sheet 2 for braking a power shaft of the wind driven generator, wherein the first brake sheet 1 and the second brake sheet 2 are arranged oppositely, the first brake sheet 1 and the second brake sheet 2 are respectively hinged on a first bracket 3 and a second bracket 4, and the end parts of the first bracket 3 and the second bracket 4 are hinged; the other end of the first support 3 is hinged with a screw rod 5, the second support 4 is hinged with a thread block 6 matched with the screw rod 5, the screw rod 5 penetrates through the thread block 6 and is connected with a power device, and the power device rotates to enable the first brake sheet 1 and the second brake sheet 2 to be close to each other to brake a power shaft.

In the utility model, the power device rotates to drive the screw rod 5 to rotate, so that the first support 3 and the second support 4 are close to each other, and the first brake pad 1 and the second brake pad 2 which are respectively arranged on the first support 3 and the second support 4 are close to each other, thereby braking the power shaft of the wind driven generator. Meanwhile, the braking device is also used for assisting in braking the power shaft when the blades are emergently braked.

In order to further improve the effect of band-type brake, first band-type brake piece 1 and second band-type brake piece 2 all are the circular arc type, can effectual increase band-type brake piece and power shaft's area of contact, and friction disc 13 is all installed on the surface of first band-type brake piece 1 and second band-type brake piece 2 and power shaft contact, and friction disc 13 can effectual ability band-type brake piece and power shaft between the coefficient of friction, and then the frictional force between increase band-type brake piece and the power shaft.

In the specific embodiment, power device includes casing 7, install worm wheel and worm in the casing 7, universal joint 8 is installed to the worm wheel output,

universal joint

8 and 5 end connection of lead screw, the worm input is connected with power component, first support 3 and second support 4 are close to the in-process each other, certain skew can take place for lead screw 5 in the horizontal direction, universal joint 8 adapts to the offset of lead screw 5, and then realize effective connection between assurance power device and the lead screw 5, power component can adopt reversible motor or hydraulic motor to provide power take off.

Articulated between first support 3 and the second support 4 is connected with hydraulic damping device 9, and hydraulic damping device 9 can prevent that first band brake piece 1 and second band brake piece 2 from holding the quick hard contact of brake part and power shaft, effectual protection band brake part and power shaft. The end parts of the first support 3 and the second support 4 are connected through a connecting piece 10, two ends of the connecting piece 10 are hinged to the first support 3 and the second support 4 respectively, the connecting piece 10 strengthens the connection strength between the first support 3 and the second support 4, and in order to facilitate the integral installation of the braking device in a cabin of the wind driven generator, the connecting piece 10 is further provided with a mounting hole 11. Connecting block 12 is installed in the articulated connection of 3 tip of first support, and connecting block 12 and lead screw 5 fixed connection, connecting block 12 are convenient for connect lead screw 5 and first support 3, prolong the life of lead screw 5.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A braking device for a wind power generator is characterized in that: the brake device comprises a first brake sheet (1) and a second brake sheet (2) which are used for braking a power shaft of a wind driven generator, wherein the first brake sheet (1) and the second brake sheet (2) are arranged oppositely, the first brake sheet (1) and the second brake sheet (2) are respectively hinged and installed on a first support (3) and a second support (4), and the end parts of the first support (3) and the second support (4) are hinged and connected;

another end of first support (3) articulates and is connected with lead screw (5), second support (4) articulate install with lead screw (5) complex thread piece (6), lead screw (5) pass thread piece (6) are connected with power device, power device rotates and makes it first embrace to stop piece (1) with piece (2) are embraced to the second are close to each other in order to embrace the power shaft of stopping.

2. The brake device for a wind power generator according to claim 1, wherein: the power device comprises a shell (7), a worm wheel and a worm are installed in the shell (7), a universal joint (8) is installed at the output end of the worm wheel, and the universal joint (8) is connected with the end part of the screw rod (5);

the input end of the worm is connected with a power assembly.

3. The brake device for a wind power generator according to claim 1, wherein: a hydraulic damping device (9) is hinged between the first support (3) and the second support (4).

4. A brake device for a wind power generator according to any one of claims 1 to 3, wherein: the end parts of the first support (3) and the second support (4) are connected through a connecting piece (10), and two ends of the connecting piece (10) are hinged to the first support (3) and the second support (4) respectively.

5. The brake device for a wind power generator according to claim 4, wherein: the connecting piece (10) is also provided with a mounting hole (11).

6. The brake device for a wind power generator according to claim 5, wherein: the end part of the first support (3) is hinged with a connecting block (12), and the connecting block (12) is fixedly connected with the screw rod (5).

7. The brake device for a wind power generator according to claim 6, wherein: friction plates (13) are arranged on the surfaces of the first brake holding sheet (1) and the second brake holding sheet (2) which are in contact with the power shaft.

8. The brake device for a wind power generator according to claim 6, wherein: the first brake sheet (1) and the second brake sheet (2) are both arc-shaped.