CN117537017A

CN117537017A - Hybrid yaw brake

Info

Publication number: CN117537017A
Application number: CN202311750279.0A
Authority: CN
Inventors: 闫火军; 闫旭东; 李强; 薛成亮; 李凤轩
Original assignee: Jiaozuo City Brake Co ltd
Current assignee: Jiaozuo City Brake Co ltd
Priority date: 2023-12-19
Filing date: 2023-12-19
Publication date: 2024-02-09

Abstract

The invention discloses a hybrid yaw brake which comprises a clamp body assembly, wherein the clamp body assembly comprises an upper clamp body and a lower clamp body which are arranged in an up-down opposite manner, a mechanical braking device and a hydraulic braking device are arranged in the lower clamp body, and an adjusting nut, a guide pillar, a disc spring group, a mechanical supporting ring and a mechanical lower friction plate are arranged in the mechanical braking device from top to bottom; the hydraulic braking device is provided with a hydraulic supporting ring and a piston from top to bottom, the right ends of the hydraulic supporting ring and the piston are both connected with sealing elements, the left end of the hydraulic supporting ring and the piston is connected with a hydraulic lower friction plate, the side surface of the upper clamp body is provided with a radial friction plate, the upper clamp body and the lower clamp body are in threaded connection through connecting bolts, and the side surface of the lower clamp body is provided with an oil guide interface; the oil collecting bottle assembly is arranged on the side of the lower clamp body and is connected with the lower clamp body. Can effectively solve the problems in the prior art and create better economic benefit.

Description

Hybrid yaw brake

Technical Field

The invention relates to the field of brakes, in particular to a hybrid yaw brake.

Background

At present, a yaw brake of a wind driven generator mainly adopts a rolling bearing and a hydraulic active structure or a mechanical structure. The mechanical yaw brake has the advantages of simple structure, low cost, simple operation, maintenance and replacement, no pollution, and the like, but the slipping phenomenon can occur under certain severe working conditions because the braking force is a fixed force value. The hydraulic yaw calipers are high in production cost and maintenance cost and high in machining and matching precision; when the working state is deceleration braking, the abrasion loss of the friction plate is large, and the sealing of the brake piston is easily affected by tangential force to generate oil leakage; when the oil circuit or the hydraulic station fails, the brake is in an abnormal working state, and the equipment runs in an out-of-control state at the moment, so that the equipment is very dangerous, and therefore, the hybrid yaw brake is provided for solving the technical problems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a hybrid yaw brake. The invention aims to solve the problem of overlarge yaw driving force of the large megawatt fan, not only can ensure that the wind generating set acts stably and smoothly during yaw, but also can effectively reduce the overlarge load of the driving device during yaw, and improve the yaw driving service life and the operation condition.

The aim of the invention is achieved by the following technical scheme: a hybrid yaw brake, comprising: the clamp body assembly comprises an upper clamp body and a lower clamp body which are arranged in an up-down opposite manner, a mechanical braking device and a hydraulic braking device are arranged in the lower clamp body, and the mechanical braking device is provided with an adjusting nut, a guide pillar, a disc spring group, a mechanical supporting ring and a mechanical lower friction plate from top to bottom; the hydraulic braking device is provided with a hydraulic supporting ring and a piston from top to bottom, the right ends of the hydraulic supporting ring and the piston are both connected with sealing elements, the left end of the hydraulic supporting ring and the piston is connected with a hydraulic lower friction plate, the side surface of the upper clamp body is provided with a radial friction plate, the upper clamp body and the lower clamp body are in threaded connection through connecting bolts, and the side surface of the lower clamp body is provided with an oil guide interface;

the oil collecting bottle assembly is arranged on the side of the lower clamp body and is connected with the lower clamp body.

Further, the adjusting nut is provided with threads, the adjusting nut is connected with the mounting hole through threads, the mechanical supporting ring and the guide pillar are mounted in the mounting hole, and the disc spring set is arranged on the outer surface of the guide pillar.

Further, the hydraulic braking device is provided with a hydraulic hole, the piston is arranged in the hydraulic hole, and a hydraulic lower friction plate and a hydraulic support ring are sequentially arranged above the piston.

Further, the radial friction plate is in threaded connection with the side face of the upper clamp body through a fixing bolt, and the side face of the radial friction plate is provided with a groove for lubrication.

Further, collection oil bottle subassembly passes through the bolt fastening with lower pincers body, collection oil bottle subassembly comprises collection oil bottle, collection oil bottle support, oil pipe, fixed joint, oil pipe and oil guide interface connection, the side of lower pincers body is provided with detection mechanism, and the probe rod is through installing probe rod support and lower pincers body coupling, and the inside detection hole of having seted up of calliper down, and the probe rod is installed in the detection hole, fixes on the lower pincers body through the probe rod support, monitors down friction disc wearing and tearing condition, is convenient for detect the wearing and tearing of friction disc and judge whether need change down the friction disc down. The inner part of the lower clamp body is provided with an oil drain port, and the oil collecting bottle is connected with the oil drain hole through an oil pipe, so that the fan pollution caused by oil leakage of the brake can be prevented.

Drawings

Fig. 1 is a general schematic view of a brake according to the present invention.

FIG. 2 is a schematic view of the view from A-A in FIG. 1 according to the present invention.

FIG. 3 is a schematic view of the B-B direction of FIG. 1 according to the present invention.

In the figure, 1, an upper clamp body; 2. a lower clamp body; 3. a mechanical braking device; 31. a mechanical support ring; 32. a disc spring set; 33. a guide post; 34. an adjusting nut; 4. a mechanical lower friction plate; 5. radial friction plates; 6. a connecting bolt; 7. a locking plate; 8. a detection rod; 9. a hydraulic braking device; 91. a seal; 92. a hydraulic support ring; 93. a piston; 10. a hydraulic lower friction plate; 11. an oil collection bottle assembly; 111. fixing the joint; 112. an oil pipe; 113. an oil collecting bottle bracket; 114. an oil collecting bottle.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

As shown in fig. 1-3, a hybrid yaw brake, comprising: the clamp body assembly comprises an upper clamp body 1 and a lower clamp body 2 which are oppositely arranged up and down, a mechanical braking device 3 and a hydraulic braking device 9 are arranged in the lower clamp body 2, and an adjusting nut 34, a guide pillar 33, a disc spring group 32, a mechanical supporting ring 31 and a mechanical lower friction plate 4 are arranged in the mechanical braking device 3 from top to bottom; the hydraulic braking device 9 is provided with a hydraulic supporting ring 92 and a piston 93 from top to bottom, the right ends of the hydraulic supporting ring 92 and the piston 93 are both connected with a sealing piece 91, the left end is connected with a hydraulic lower friction plate 10, the side surface of the upper clamp body 1 is provided with a radial friction plate 5, the upper clamp body 1 and the lower clamp body 2 are in threaded connection through connecting bolts, and the side surface of the lower clamp body 2 is provided with an oil guide interface;

the oil collecting bottle assembly 11 is arranged on the side of the lower clamp body 2, and the oil collecting bottle assembly 11 is connected with the lower clamp body 2.

In this embodiment, the adjusting nut 34 is provided with threads, the adjusting nut 34 is connected with a mounting hole through threads, the mechanical supporting ring 31 and the guide post 33 are mounted in the mounting hole, and the disc spring set 32 is disposed on the outer surface of the guide post 33.

In this embodiment, the hydraulic braking device 9 is provided with a hydraulic hole, the piston 93 is disposed in the hydraulic hole, and the hydraulic lower friction plate 10 and the hydraulic support ring 92 are sequentially disposed above the piston 93.

In this embodiment, the radial friction plate 5 is screwed with the side surface of the upper caliper body 1 through a fixing bolt, and the side surface of the radial friction plate 5 is provided with a groove for lubrication.

In this embodiment, collection oil bottle subassembly 11 passes through the bolt fastening with lower pincers body 2, collection oil bottle subassembly 11 comprises collection oil bottle, collection oil bottle support 113, oil pipe 112, fixed joint 111, oil pipe 112 and oil guide interface connection, the side of lower pincers body 2 is provided with detection mechanism, and the probe rod is connected with lower pincers body 2 through installation probe rod support, and the detection hole has been seted up to lower pincers body 2 inside, and the probe rod is installed in the detection hole, fixes on lower pincers body 2 through the probe rod support, monitors the friction disc wearing and tearing condition down, is convenient for detect the wearing and tearing of friction disc down and judge whether need change friction disc down, and then can reduce the work load of change. The lower clamp body 2 is internally provided with an oil drain port, and the oil collecting bottle 114 is connected with the oil drain port through an oil pipe 112, so that the fan pollution caused by oil leakage of a brake can be prevented.

The working process of the invention is as follows: in the fan anchoring state, the hydraulic cylinder of the hydraulic braking device 9 is electrified with oil pressure to form pressure to push the piston 93 to move upwards, so that the hydraulic support ring 92 and the hydraulic lower friction plate 10 move upwards, the hydraulic lower friction plate 10 is tightly attached to the surface of the yaw gear ring, the mechanical braking device 3 firstly rotates the adjusting nut 34 to enable the disc spring group 32 to be subjected to compression force, the guide pillar 33 is enabled to move upwards through the elastic force of the disc spring group 32, the mechanical lower friction plate 4 is enabled to move upwards, the mechanical lower friction plate 4 is enabled to be tightly attached to the surface of the yaw gear ring, the hydraulic braking device 9 and the mechanical braking device 3 are used for pressing friction to brake and slow down and anchor the yaw gear ring, in the fan yawing state, the hydraulic braking device 9 stops to press or reduce the pressure, the mechanical braking device 3 is used for pressing and rubbing the yaw gear ring, the braking force is reduced, yaw driving load is reduced, and stable and smooth yawing of the fan in the yawing process can be ensured. After the lower friction plate is worn, whether the lower friction plate is worn to the extent that the lower friction plate needs to be replaced or not can be judged through the indication of the detection rod 8, so that the replacement workload is reduced, and the working efficiency is improved.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims

1. A hybrid yaw brake, comprising:

the clamp body assembly comprises an upper clamp body and a lower clamp body which are arranged in an up-down opposite manner, a mechanical braking device and a hydraulic braking device are arranged in the lower clamp body, and the mechanical braking device is provided with an adjusting nut, a guide pillar, a disc spring group, a mechanical supporting ring and a mechanical lower friction plate from top to bottom; the hydraulic braking device is provided with a hydraulic supporting ring and a piston from top to bottom, the right ends of the hydraulic supporting ring and the piston are both connected with sealing elements, the left end of the hydraulic supporting ring and the piston is connected with a hydraulic lower friction plate, the side surface of the upper clamp body is provided with a radial friction plate, the upper clamp body and the lower clamp body are in threaded connection through connecting bolts, and the side surface of the lower clamp body is provided with an oil guide interface;

2. A hybrid yaw brake according to claim 1, wherein the adjustment nut is provided with threads, the adjustment nut being connected with a mounting hole by threads, the mechanical support ring and the guide post being mounted in the mounting hole, the disc spring set being arranged on an outer surface of the guide post.

3. The hybrid yaw brake of claim 1, wherein the hydraulic brake device is provided with a hydraulic hole, the piston is arranged in the hydraulic hole, and a hydraulic lower friction plate and a hydraulic support ring are sequentially arranged above the piston.

4. The hybrid yaw brake of claim 1, wherein the radial friction plate is threadably coupled to the side of the upper caliper body by a set screw, and the side of the radial friction plate is grooved.

5. The hybrid yaw brake of claim 1, wherein the oil collection bottle assembly is fixed with the lower caliper body through bolts, the oil collection bottle assembly is composed of an oil collection bottle, an oil collection bottle support, an oil pipe and a fixed joint, the oil pipe is connected with an oil guide interface, a detection mechanism is arranged on the side face of the lower caliper body, and a detection rod is connected with the lower caliper body through a detection rod mounting support.