阅读说明：本技术 一种机械式风机发电限速装置 (Mechanical fan power generation speed limiting device ) 是由 虞洋 施允洋 马郡 于 2019-10-28 设计创作，主要内容包括：一种机械式风机发电限速装置,包括叶片组件,叶片组件通过转轴和变速箱组件连接,变速箱组件通过联轴器和发电机组连接,转轴、变速箱组件、联轴器、发电机组均安装在保护壳内部,所述转轴上安装的减速装置,减速装置安装在保护壳内部,减速装置包括固定环,固定环外表面固定有连接组件,连接组件一端和固定环连接,连接组件另一端和刹车球连接,刹车球与刹车片相互配合。本发明通过在原有的发电风机上加装限速装置,能够在速度过快时自动降低转速,起到保护发电机组的目的。(The utility model provides a mechanical type fan power generation speed-limiting device, includes the blade subassembly, and the blade subassembly passes through the pivot and the gearbox subassembly is connected, and the gearbox subassembly passes through the shaft coupling and is connected with generating set, and pivot, gearbox subassembly, shaft coupling, generating set are all installed inside the protective housing, the decelerator of installing in the pivot, decelerator install inside the protective housing, and decelerator includes solid fixed ring, and solid fixed ring external surface has coupling assembling, and coupling assembling one end and solid fixed ring are connected, and the coupling assembling other end and brake ball are connected, and brake ball and brake block are mutually supported. The speed limiting device is additionally arranged on the original power generation fan, so that the rotating speed can be automatically reduced when the speed is too high, and the purpose of protecting the power generation unit is achieved.)

1. The utility model provides a mechanical type fan power generation speed-limiting device, includes the blade subassembly, and the blade subassembly passes through the pivot and the gearbox subassembly is connected, and the gearbox subassembly passes through the shaft coupling and is connected with generating set, pivot, gearbox subassembly, shaft coupling, generating set are all installed inside the protective housing, a serial communication port, the decelerator of installation in the pivot, decelerator installs inside the protective housing, decelerator is including solid fixed ring, and solid fixed ring external surface is fixed with coupling assembling, and coupling assembling one end and solid fixed ring are connected, and the coupling assembling other end is connected with the brake ball, and the brake ball is mutually supported with the brake block.

2. The mechanical fan power generation speed limiting device of claim 1, characterized in that: the fixing ring is provided with a first screw hole, a screw in threaded fit is arranged in the first screw hole, and the fixing ring is fastened on the rotating shaft through the screw screwed into the first screw hole.

3. The mechanical fan power generation speed limiting device of claim 1, characterized in that: the connecting assembly comprises a connecting pipe and a connecting rod, and the connecting rod is arranged in the connecting pipe and is in sliding connection with the connecting pipe.

4. The mechanical fan power generation speed limiting device of claim 3, characterized in that: connecting pipe one end and solid fixed ring welding, the other end are provided with the fender ring, keep off the ring and set up the separation blade in connecting rod one end and mutually support, and the connecting rod other end is provided with the external screw thread, and the external screw thread is mutually supported with the second screw that sets up on the brake ball.

5. The mechanical fan power generation speed limiting device of claim 1, characterized in that: the brake block is installed on the fixing base, and the fixing base is connected with the inner wall of the protective shell.

6. The mechanical fan power generation speed limiting device of claim 4, characterized in that: the separation blade is connected with spring one end, and the spring other end is connected with solid fixed ring.

Technical Field

The invention relates to the technical field related to wind power generation, in particular to a mechanical fan power generation speed limiting device.

Background

Wind power generation is used as clean energy and has been a key supporting development object in many areas. In some areas, long-term wind power is high, and a speed limiting device needs to be additionally arranged on the generator set so as to reduce the over-high rotating speed and further reduce the damage to the generator set. At present, the speed limiting device is mainly divided into two types, one type is an electronic type, and the other type is a mechanical type. The electronic type precision is high, the reaction is fast, the application is more and more extensive, but its maintenance cost is high, often is not suitable for remote place, like the electronic type speed limiter disclosed in 201821297744.4, because the sensor exposes for a long time, need regularly maintain, increased the maintenance cost. Patent 201820707303.0 discloses a mechanical governor, but the governor is also mounted outside the enclosure, and long periods of rain and grit can also reduce the life. Aiming at the problem, the invention designs the speed limiting device which does not need frequent maintenance, thereby achieving the purpose of reducing the power generation cost.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems and the problems in the background art, the invention provides a mechanical fan power generation speed limiting device, which aims to: the invention can automatically limit the over-high rotating speed of the fan and reduce the maintenance cost of the fan.

(II) technical scheme

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

the utility model provides a mechanical type fan power generation speed-limiting device, includes the blade subassembly, and the blade subassembly passes through the pivot and the gearbox subassembly is connected, and the gearbox subassembly passes through the shaft coupling and is connected with generating set, pivot, gearbox subassembly, shaft coupling, generating set are all installed inside the protective housing, a serial communication port, the decelerator of installation in the pivot, decelerator installs inside the protective housing, decelerator is including solid fixed ring, and solid fixed ring external surface is fixed with coupling assembling, and coupling assembling one end and solid fixed ring are connected, and the coupling assembling other end is connected with the brake ball, and the brake ball is mutually supported with the brake block.

As the preferable scheme of the previous step, a first screw hole is formed in the fixing ring, a screw in threaded fit is arranged in the first screw hole, and the fixing ring is fastened on the rotating shaft through the screw screwed into the first screw hole.

Preferably, the connection assembly includes a connection pipe and a connection rod, and the connection rod is disposed inside the connection pipe and slidably connected inside the connection pipe.

As the preferred scheme of last step, connecting pipe one end and solid fixed ring welding, the other end is provided with the fender ring, keeps off the ring and mutually supports with the separation blade that sets up in connecting rod one end, and the connecting rod other end is provided with the external screw thread, and the external screw thread is mutually supported with the second screw that sets up on the brake ball.

As the preferable scheme of the previous step, the brake pad is installed on the fixed seat, and the fixed seat is connected with the inner wall of the protective shell.

As the preferable scheme of the previous step, the blocking piece is connected with one end of the spring, and the other end of the spring is connected with the fixing ring.

(III) advantageous effects

The invention provides a mechanical fan power generation speed limiting device, which has the following beneficial effects:

1. the speed limiting device is additionally arranged on the original power generation fan, so that the rotating speed can be automatically reduced when the speed is too high, and the purpose of protecting the power generation unit is achieved.

2. The invention utilizes the centrifugal principle, when the rotating speed is too high, the connecting rod slides outwards in the connecting pipe, at the moment, the brake ball and the brake pad are contacted to play a role in reducing the speed, and the spring plays a role in balancing when the speed is reduced.

3. The invention is a mechanical structure, compared with an electronic speed limiter, the invention has lower maintenance cost, is completely arranged in the protective shell and has longer service life.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic structural view of a reduction gear of the present invention.

FIG. 3 is a view showing the connection structure of the fixing ring and the rotating shaft according to the present invention.

FIG. 4 is a view showing the connection structure of the connecting rod and the brake ball according to the present invention.

Wherein, 1, protective housing, 2, blade subassembly, 3, pivot, 4, reduction gear assembly, 5, generating set, 6, decelerator, 7, connector, 61, solid fixed ring, 62, first screw, 63, connecting pipe, 64, separation blade, 65, connecting rod, 66, brake ball, 67, connecting seat, 68, brake block, 69, fender ring, 70, screw, 71, spring, 651, external screw thread, 661, second screw.

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.