阅读说明：本技术 一种主动电磁式偏航制动器 (Active electromagnetic yaw brake ) 是由 段瑞龙 刘毅 王向伟 王吉超 郑权 史立志 由梓默 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种主动电磁式偏航制动器,涉及风力发电设备技术领域,包括上下对称设置的两个制动钳体,所述制动钳体固定安装在风力发电机的机头上,能够对刹车盘进行夹紧；所述制动钳体包括壳体,所述壳体内设置有电磁层,所述电磁层内安装有电磁铁,所述电磁铁连接有电源和控制器；所述电磁层的上方设置有制动摩擦片,所述电磁体能够带动所述制动摩擦片对所述刹车盘进行夹紧。本发明在不工作时能够使制动摩擦片与刹车盘完全脱离,避免造成不必要的磨损。(The invention discloses an active electromagnetic yaw brake, which relates to the technical field of wind power generation equipment and comprises two brake caliper bodies which are arranged up and down symmetrically, wherein the brake caliper bodies are fixedly arranged on a machine head of a wind power generator and can clamp a brake disc; the brake caliper body comprises a shell, an electromagnetic layer is arranged in the shell, an electromagnet is arranged in the electromagnetic layer, and the electromagnet is connected with a power supply and a controller; and a brake friction plate is arranged above the electromagnetic layer, and the electromagnet can drive the brake friction plate to clamp the brake disc. The invention can completely separate the brake friction plate from the brake disc when not working, thereby avoiding unnecessary abrasion.)

1. An active electromagnetic yaw brake comprises two brake caliper bodies which are arranged up and down symmetrically, wherein the brake caliper bodies are fixedly arranged on a machine head of a wind driven generator and can clamp a brake disc; the method is characterized in that: the brake caliper body comprises a shell, an electromagnetic layer is arranged in the shell, an electromagnet is arranged in the electromagnetic layer, and the electromagnet is connected with a power supply and a controller; and a brake friction plate is arranged above the electromagnetic layer, and the electromagnet can drive the brake friction plate to clamp the brake disc.

2. The active electromagnetic yaw brake of claim 1, wherein: the lower part of the shell is connected with a bolt, the bolt can compress the electromagnetic layer, and the joint of the shell and the bolt is provided with a fritillaria.

3. The active electromagnetic yaw brake of claim 1, wherein: an electromagnetic protection layer is arranged between the shell and the electromagnetic layer.

4. The active electromagnetic yaw brake of claim 3, wherein: the electromagnetic protective layer is made of antimagnetic materials.

5. The active electromagnetic yaw brake of claim 1, wherein: and the brake caliper body is also provided with an ash removal device, and the ash removal device is in contact with the brake disc and can scrape friction material powder on the brake disc.

6. The active electromagnetic yaw brake of claim 5, wherein: the dust removing device comprises a dust removing main body which is fixedly arranged on the side wall of the brake caliper body, and dust discharging grooves are formed in two sides of the dust removing main body.

7. The active electromagnetic yaw brake of claim 1, wherein: and the brake caliper body is also provided with a wear sensor.

8. The active electromagnetic yaw brake of claim 1, wherein: the controller adopts a PLC controller.

Technical Field

The invention relates to the technical field of wind power generation equipment, in particular to an active electromagnetic yaw brake.

Background

The machine head of the wind driven generator can rotate, the yaw brake brakes the machine head, and the machine head is fixed at a specific angle position, so that the orientation of the machine head is kept the same as the wind direction, the wind power can drive the blades to rotate to the maximum degree, and more wind energy is converted into electricity.

Existing yaw brakes typically include a plurality of yaw brake clips that are mounted to a brake disc to brake the clamping thereof. In the prior art, a butterfly valve type yaw brake clamp is provided, which compresses a brake friction plate all the time through a compression bolt, so that the brake friction plate is always kept in contact with a brake disc, and unnecessary abrasion is caused.

Therefore, it is desirable to provide a new active electromagnetic yaw brake to solve the above problems in the prior art.

Disclosure of Invention

The invention aims to provide an active electromagnetic yaw brake, which solves the problems in the prior art, can completely separate a brake friction plate from a brake disc when not in work and avoids unnecessary abrasion.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides an active electromagnetic yaw brake which comprises two brake caliper bodies which are arranged up and down symmetrically, wherein the brake caliper bodies are fixedly arranged on a machine head of a wind driven generator and can clamp a brake disc; the brake caliper body comprises a shell, an electromagnetic layer is arranged in the shell, an electromagnet is arranged in the electromagnetic layer, and the electromagnet is connected with a power supply and a controller; and a brake friction plate is arranged above the electromagnetic layer, and the electromagnet can drive the brake friction plate to clamp the brake disc.

Preferably, a bolt is connected to the lower portion of the shell and can press the electromagnetic layer, and a fritillary bulb is arranged at the joint of the shell and the bolt.

Preferably, an electromagnetic protection layer is arranged between the shell and the electromagnetic layer.

Preferably, the electromagnetic protection layer is made of antimagnetic materials.

Preferably, the brake caliper body is further provided with a dust removing device, and the dust removing device is in contact with the brake disc and can scrape friction material powder on the brake disc.

Preferably, the ash removal device comprises an ash removal main body, the ash removal main body is fixedly installed on the side wall of the brake caliper body, and ash discharge grooves are formed in two sides of the ash removal main body.

Preferably, the brake caliper body is further provided with a wear sensor.

Preferably, the controller is a PLC controller.

Compared with the prior art, the invention has the following beneficial technical effects:

the active electromagnetic yaw brake provided by the invention adopts the electromagnet to control the brake friction plate to work, and the brake friction plate can be completely separated from the brake disc when not working, so that unnecessary abrasion is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an active electromagnetic yaw brake according to the present invention;

FIG. 2 is a schematic structural view of a caliper body according to the present invention;

in the figure: 100-active electromagnetic yaw brake, 1-shell, 2-electromagnetic protective layer, 3-electromagnetic layer, 4-bolt, 5-fritillary bulb, 6-ash removal device, 61-ash removal main body, 62-ash removal groove and 7-brake friction plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide an active electromagnetic yaw brake to solve the problems in the prior art, and the multiple yaw brake clamps adopt a parallel structure, so that the hydraulic pressure in each yaw brake clamp is the same, oil leakage is avoided, damage to a brake disc is reduced, and the service life is prolonged.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1-2, the present embodiment provides an active electromagnetic yaw brake 100, which includes two brake caliper bodies that are disposed symmetrically up and down, and the brake caliper bodies are fixedly mounted on a head of a wind turbine generator and can clamp a brake disc; specifically, the brake caliper body comprises a shell 1, an electromagnetic layer 3 is arranged in the shell 1, an electromagnet is arranged in the electromagnetic layer 3, and the electromagnet is connected with a power supply and a controller; a brake friction plate 7 is arranged above the electromagnetic layer 3, when the electromagnetic brake is in work, the electromagnet is electrified to drive the brake friction plate 7 to clamp the brake disc, and when the brake disc does not need to be clamped, the electromagnet can drive the brake friction plate 7 to be completely separated from the brake disc, so that unnecessary abrasion is avoided.

In the present embodiment, a bolt 4 is connected to the lower portion of the housing 1, the bolt 4 can press the electromagnetic layer 3, and a fritillary bulb 5 is disposed at the connection portion between the housing 1 and the bolt 4.

In the present embodiment, an electromagnetic protection layer 2 is disposed between the housing 1 and the electromagnetic layer 3, so as to perform electromagnetic protection.

In the present embodiment, the electromagnetic shielding layer 2 is made of a magnetic shielding material, wherein the magnetic shielding material can be selected from the prior art according to the working requirement.

In this embodiment, the caliper body is further provided with a dust removing device 6, and the dust removing device 6 is in contact with the brake disc and can scrape off friction material powder on the brake disc.

In this embodiment, the dust removing device 6 includes a dust removing main body 61, the dust removing main body 61 is fixedly installed on the side wall of the caliper body, dust discharging grooves 62 are formed on two sides of the dust removing main body 61, when the brake disc rotates relative to the caliper body, the dust removing main body 61 is attached to the brake disc and slides on the disc surface of the brake disc, and friction material powder on the disc surface of the brake disc is swept into the dust discharging grooves 62 by the dust removing main body 61; after entering the ash discharge groove 62, the friction material powder moves along the ash discharge groove 62 under the action of gravity, and finally is discharged from one end of the ash discharge groove 62 and falls.

In this embodiment, both sides of the caliper body are provided with the ash removal device 6, and the friction material powder provided with the ash removal device 6 can be removed, so that the cleanliness of the surface of the brake disc is fully ensured, and the friction material powder is prevented from being retained to cause noise and vibration.

In this embodiment, the caliper body is further provided with a wear sensor, which can monitor the wear condition of the brake disc, the wear sensor is selected from the prior art as required, and the wear sensor is connected with the controller.

In this embodiment, the controller is a PLC controller, or other control mechanism is selected according to the working requirement.

The principle and the implementation mode of the invention are explained by applying specific examples, and the description of the above examples is only used for helping understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.