CN210714934U

CN210714934U - Mechanical fan power generation speed limiting device

Info

Publication number: CN210714934U
Application number: CN201921821866.3U
Authority: CN
Inventors: 虞洋; 施允洋; 马郡
Original assignee: Suqian College
Current assignee: Suqian College
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-09
Anticipated expiration: 2029-10-28

Abstract

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 utility model discloses an install the speed limiter additional on original power generation fan, can be at the automatic rotational speed that reduces of speed when the speed is too fast, play protection generating set's purpose.

Description

Mechanical fan power generation speed limiting device

Technical Field

The utility model relates to a relevant technical field of wind power generation, concretely relates to mechanical type 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 utility model discloses a do not need the speed limiter of frequent maintenance, reach the purpose that reduces the power generation cost.

Disclosure of Invention

Technical problem to be solved

In order to solve the problem, the problem that exists among the background art, the utility model provides a mechanical type fan electricity generation speed limiter, its aim at: through the utility model discloses can restrict the fan rotational speed too fast automatically, reduce the fan maintenance cost simultaneously.

(II) technical scheme

In order to achieve the above object, the utility model provides a 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 utility model provides a mechanical type fan electricity generation speed limiting device possesses following beneficial effect:

1. the utility model discloses an install the speed limiter additional on original power generation fan, can be at the automatic rotational speed that reduces of speed when the speed is too fast, play protection generating set's purpose.

2. The utility model discloses utilize centrifugal principle, when the rotational speed was too fast, the connecting rod outwards slided in the connecting tube, and brake ball and brake block contact play the effect of deceleration at this moment, and the spring plays the balanced action when speed reduces.

3. The utility model discloses a mechanical structure compares the electron overspeed governor, the utility model discloses a maintenance cost is lower, sets up in the inside of protecting sheathing moreover completely, and life is longer.

Drawings

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

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

Fig. 3 is the connecting structure diagram of the fixing ring and the rotating shaft of the present invention.

Fig. 4 is the connecting structure diagram of the connecting rod and the brake ball of 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

as shown in FIG. 1, a mechanical type fan power generation speed limiting device mainly includes protective housing 1, and the protective housing outside is provided with blade subassembly 2, and the blade subassembly is connected through pivot 3 and reduction gear assembly 4, and reduction gear assembly 4 passes through connector 7 and generating set 5 and connects, and this part is prior art, the utility model discloses install decelerator 6 additional on prior art basis.

As shown in fig. 2 to 4, the speed reducer 6 includes a fixing ring 61, in order to allow the fixing ring 61 to be stably fixed on the rotating shaft, the fixing ring 61 of the present invention is provided with a first screw hole 62, a screw 70 with a matching shape is provided in the first screw hole 62, the screw 70 has a hexagon socket structure and fixes the fixing ring 61, the outer wall of the fixing ring 61 is connected with a connecting pipe 63, the connecting pipe 63 is provided with a connecting rod 65 capable of sliding connection, the connecting rod 65 is connected with a brake ball 66, specifically, the brake ball is provided with a second screw hole 661, one end of the connecting rod 65 is provided with an external thread 651, the connecting rod 65 is connected with the brake ball 66 by a screw manner, in order to achieve the speed reduction effect, the brake ball and the brake pad 68 are matched with each other, the brake pad is installed on the connecting seat 67, the connecting seat 67 is fixed on the inner wall of the, consider long-term friction, make the brake ball reduce, the utility model discloses set up fender ring 69 in connecting pipe one end, fender ring 69 and the separation blade 64 that sets up in connecting rod one end mutually support.

The specific working principle is as follows:

this when the wind speed is too big, the rotational speed can increase, because the effect of centrifugal force, the connecting rod can outwards slide, at this moment, brake ball and brake block contact, the rotational speed is faster, the contact is more nearly, at this moment frictional resistance is big more to make the pivot carry out the deceleration, after the rotational speed falls suitable speed, the spring pulled back the connecting rod and played the balanced action, when the rotational speed promoted again, reciprocal circulation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

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.