CN217354604U

CN217354604U - Locking device for fan transmission chain system

Info

Publication number: CN217354604U
Application number: CN202220411609.8U
Authority: CN
Inventors: 莫书帆; 石红静; 杨亚炬; 郭萌; 郭铭
Original assignee: Datang Shanxian Wind Power Generation Co ltd
Current assignee: Datang Shanxian Wind Power Generation Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-09-02
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a fan drive chain system locking device relates to fan technical field, including setting up the cardboard on the main shaft and setting up the braking structure in the frame, the braking structure is including cup jointing at the outside brake disc of main shaft and moving plate, the draw-in groove that corresponds with the cardboard is seted up to one side that the brake disc is close to the cardboard, the equal fixedly connected with spacing ring in inner wall both sides of frame, the gag lever post has been cup jointed in the spacing intra-annular activity, the one end fixed connection of gag lever post is on moving plate's curb plate, the inboard equal fixedly connected with collar of spacing ring, the inside equal fixedly connected with pneumatic cylinder of collar. This fan drive chain system locking device sets up through the cooperation of cardboard with the brake disc, at the in-process of operative installations, can block the main shaft on the brake disc, prevents that the main shaft from leading to rotating because of frictional force is not enough under the effect of external force, improves the security of device after the locking.

Description

Locking device for fan transmission chain system

Technical Field

The utility model relates to a fan technical field specifically is a fan driving chain system locking device.

Background

With the development of new energy industry, the wind energy which is used as new energy for developing earlier wind energy occupies greater and greater proportion in a power grid. Meanwhile, more and more wind turbine manufacturers develop various wind turbine main engines, and the main types of the wind turbine main engines are divided into two types: horizontal and vertical axis fans; the horizontal shaft fan is widely applied at present and is the mainstream machine type of wind power generation.

According to the working principle of the wind driven generator, the traditional wind generating set transmission chain system generally adopts the following design ideas: the impeller converts wind energy into rotational mechanical energy, which is coupled to a generator through a drive chain system to produce electrical energy. The main components of the design include: an impeller, a main shaft system, a gearbox (speed increasing box) and a generator. The main shaft system, the gear box and the generator form a transmission chain system of the fan; the main shaft is connected with an input shaft of the gear box in a clearance fit mode, and then the end portion of the main shaft is locked with the input shaft end of the gear box through a shrinkage disc arranged on the input shaft of the gear box, so that the mechanical property of transmission is met. When the existing fan transmission chain locking device is used, a main shaft is usually tightly held and locked by friction, and under the action of wind force in the using process, the existing fan transmission chain locking device can not be completely locked due to insufficient friction, so that certain potential safety hazards are brought.

Therefore, there is a need to provide a locking device for a fan drive chain system to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a fan driving chain system locking device to solve the current fan driving chain locking device who proposes in the above-mentioned background art, when using, hold the main shaft tightly usually, rely on frictional force locking, under the effect of wind power at the in-process that uses, probably because frictional force is not enough to lead to can not locking completely, bring the problem of certain potential safety hazard.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a fan drive chain system locking device, is including setting up the cardboard on the main shaft and setting up the braking structure in the frame, the braking structure is including cup jointing at the outside brake disc of main shaft and removing the dish, the draw-in groove that corresponds with the cardboard is seted up to one side that the brake disc is close to the cardboard, the equal fixedly connected with spacing ring in inner wall both sides of frame, the gag lever post has been cup jointed in the activity of spacing ring, the one end fixed connection of gag lever post is on the curb plate that removes the dish, the equal fixedly connected with collar in inboard of spacing ring, the equal fixedly connected with pneumatic cylinder in inside of collar, the piston rod end fixed connection of pneumatic cylinder is on the curb plate that removes the dish.

The side plate of the movable disc is rotatably connected with a rotating shaft, one end, away from the movable disc, of the rotating shaft is fixedly connected to the brake disc, a worm wheel is fixedly connected to the outer circular surface of the rotating shaft, a motor is fixedly connected to the bottom of the inner wall of the base, a worm is rotatably connected to the output shaft of the motor and the base, and the worm wheel and the worm are meshed with each other.

Preferably, the length of the limiting rod and the length of the limiting ring are both greater than the distance between the brake disc and the clamping plate.

Preferably, the stroke of the hydraulic cylinder is larger than the depth of the clamping groove.

Preferably, the clamping plates are three and are uniformly distributed on the outer circle of the main shaft.

(III) advantageous effects

Compared with the prior art, the utility model provides a fan drive chain system locking device possesses following beneficial effect:

this fan drive chain system locking device sets up through the cooperation of cardboard with the brake disc, at the in-process of operative installations, can block the main shaft on the brake disc, prevents that the main shaft from leading to rotating because of frictional force is not enough under the effect of external force, improves the security of device after the locking.

Drawings

FIG. 1 is an axial view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

fig. 3 is a schematic rear view of the structure of the present invention.

In the figure: 1. a machine base; 2. a main shaft; 3. a movable tray; 4. a brake disc; 5. clamping a plate; 6. a worm gear; 7. a limiting ring; 8. a limiting rod; 9. a mounting ring; 10. a hydraulic cylinder; 12. a rotating shaft; 13. a motor; 14. a worm; 15. a clamping groove.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, a locking device of a fan transmission chain system comprises a clamping plate 5 disposed on a main shaft 2 and a braking structure disposed in a machine base 1, wherein the braking structure comprises a brake disc 4 sleeved outside the main shaft 2 and a movable disc 3, the main shaft 2 can be clamped on the brake disc 4 by the matching arrangement of the clamping plate 5 and the brake disc 4 in the using process of the device, the main shaft 2 is prevented from rotating due to insufficient friction force under the action of external force, the safety of the device after locking is improved, a clamping groove 15 corresponding to the clamping plate 5 is disposed on one side of the brake disc 4 close to the clamping plate 5, two sides of the inner wall of the machine base 1 are fixedly connected with a limiting ring 7, a limiting rod 8 is movably sleeved in the limiting ring 7, one end of the limiting rod 8 is fixedly connected to a side plate of the movable disc 3, a mounting ring 9 is fixedly connected to the inner side of the limiting ring 7, and a hydraulic cylinder 10 is fixedly connected to the inside of the mounting ring 9, the piston rod end of the hydraulic cylinder 10 is fixedly connected with the side plate of the movable disk 3.

A rotating shaft 12 is rotatably connected to a side plate of the movable disc 3, one end, far away from the movable disc 3, of the rotating shaft 12 is fixedly connected to the brake disc 4, a worm wheel 6 is fixedly connected to the outer circular surface of the rotating shaft 12, a motor 13 is fixedly connected to the bottom of the inner wall of the engine base 1, a worm 14 rotatably connected with the engine base 1 is fixedly connected to an output shaft of the motor 13, and the worm wheel 6 is meshed with the worm 14.

The length of gag lever post 8 and spacing ring 7 all is greater than the distance between brake disc 4 and the cardboard 5, and the stroke of pneumatic cylinder 10 is greater than the degree of depth of draw-in groove 15, guarantees that pneumatic cylinder 10 starts the back, and cardboard 5 breaks away from completely from draw-in groove 15, and under braking state, gag lever post 8 can not break away from with spacing ring 7.

Three clamping plates 5 are arranged, the three clamping plates 5 are uniformly distributed on the outer circle of the main shaft 2, and more than one clamping plate 5 can enable the main shaft 2 to be stressed uniformly.

The working principle is as follows: in the process of using the device, a position sensor is arranged in a clamping groove 15 corresponding to a clamping plate 5, when a transmission chain needs to be locked, if a main shaft 2 is in a rotating state, a motor 13 is operated according to the rotating speed of the main shaft 2, the motor 13 drives a worm 14 to rotate, a rotating shaft 12 drives a brake disc 4 to rotate under the action of a worm wheel 6, under the action of the position sensor, when the clamping plate 5 is aligned with the clamping groove 15, the rotating speed between the main shaft 2 and the brake disc 4 is the same, the main shaft 2 and the brake disc 4 are in a relatively static state, then a hydraulic cylinder 10 is operated, under the action of the hydraulic cylinder 10, the brake disc 4 is pushed to approach the clamping plate 5, the clamping plate 5 is clamped in a clamping tooth, then the rotating speed of the motor 13 is reduced until the rotating speed is completely stopped, the main shaft 2 is locked under the action of the worm wheel 6, and if the main shaft 2 is in the static state, after the clamping groove 15 rotates to the position corresponding to the clamping plate 5, the hydraulic cylinder 10 is directly operated to clamp the brake disc 4 and the clamping plate 5, and the main shaft 2 is locked.

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 various 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 fan drive chain system locking device which characterized in that: the brake structure comprises a clamping plate (5) arranged on a main shaft (2) and a brake structure arranged in a machine base (1), wherein the brake structure comprises a brake disc (4) and a movable disc (3) which are sleeved outside the main shaft (2), one side, close to the clamping plate (5), of the brake disc (4) is provided with a clamping groove (15) corresponding to the clamping plate (5), two sides of the inner wall of the machine base (1) are fixedly connected with limiting rings (7), limiting rods (8) are movably sleeved in the limiting rings (7), one ends of the limiting rods (8) are fixedly connected to side plates of the movable disc (3), the inner sides of the limiting rings (7) are fixedly connected with mounting rings (9), hydraulic cylinders (10) are fixedly connected to the inner parts of the mounting rings (9), and piston rod ends of the hydraulic cylinders (10) are fixedly connected to the side plates of the movable disc (3);

rotate on the curb plate of removal dish (3) and be connected with pivot (12), the one end fixed connection that removes dish (3) is kept away from in pivot (12) is on brake disc (4), fixedly connected with worm wheel (6) on the outer disc of pivot (12), inner wall bottom fixedly connected with motor (13) of frame (1), fixedly connected with rotates worm (14) of being connected with frame (1) on the output shaft of motor (13), worm wheel (6) and worm (14) intermeshing.

2. The fan drive chain system locking device of claim 1, wherein: the length of the limiting rod (8) and the length of the limiting ring (7) are both larger than the distance between the brake disc (4) and the clamping plate (5).

3. The fan drive chain system locking device of claim 1, wherein: the stroke of the hydraulic cylinder (10) is greater than the depth of the clamping groove (15).

4. A fan drive chain system locking device according to claim 1, wherein: the clamping plates (5) are three, and the three clamping plates (5) are uniformly distributed on the outer circle of the main shaft (2).