CN217029169U

CN217029169U - Speed limiting and braking device of wind driven generator

Info

Publication number: CN217029169U
Application number: CN202220453820.6U
Authority: CN
Inventors: 李茂堂; 李朝顺; 甄泽洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-07-22
Anticipated expiration: 2032-03-03

Abstract

The utility model discloses a speed limiting and braking device of a wind driven generator, and relates to the technical field of wind power generation equipment. The wind driven generator comprises a shell of a wind driven generator and a main shaft, wherein mounting groove holes are symmetrically formed in the main shaft, a disc is detachably mounted on the main shaft, a rectangular cylinder extending outwards is fixedly arranged in each mounting groove hole, and a brake pad used for braking and decelerating after being close to the disc is arranged in the rectangular cylinder in a sliding mode. When the brake pad of the wind driven generator needs to be replaced, the rod with the sucker only needs to extend into the rectangular cylinder through the replacement window, the brake pad is pulled back to the replacement window, the front end and the rear end of the brake pad are clamped by the clamp and pulled out of the rectangular cylinder, and then a new brake pad is placed in the rectangular cylinder for sliding through the replacement window.

Description

Speed limiting and braking device of wind driven generator

Technical Field

The utility model relates to the technical field of wind power generation equipment, in particular to a speed limiting and braking device of a wind driven generator.

Background

The wind power generator is an electric power device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate, and finally outputs alternating current.

In the rotating process of the wind driven generator, the rotating speed of the paddle blade is increased along with the increase of wind power, when the wind power is too large, the rotating speed of the paddle blade is too high, so that the generator is overloaded, the generator is limited in speed and braked, and further the damage caused by the overload of the engine is avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the problems in the background technology, the utility model provides a speed limiting and braking device of a wind driven generator.

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a aerogenerator's speed limit, brake equipment, includes aerogenerator's casing, main shaft, symmetrical structure has the installation slotted hole on the main shaft, demountable installation has the dish on the main shaft, the mounting groove internal fixation has an outside rectangular cylinder of extension, it is used for being close to slide in the rectangular cylinder carry out the brake block that brakes the speed reduction behind the dish, the top of a rectangular cylinder is constructed to have the change window that is used for putting into the brake block, still includes the drive the brake block is close to the actuating mechanism and the control mechanism who controls actuating mechanism and open of dish.

Further, the welding has the disc seat of two relative settings on the main shaft, the disc includes that two structures are semicircle form and symmetry parcel are in the outer brake disc of main shaft, two all be fixed with on the brake disc with the otic placode of disc seat laminating, the otic placode passes through fastening bolt to be fixed on the disc seat.

Further, the both ends of a rectangular cylinder all run through, actuating mechanism includes electric putter and seals the mounting panel of the outside extension one end of a rectangular cylinder, the mounting panel passes through the screw assembly and is in the tip department of a rectangular cylinder, just electric putter's stiff end is installed on the mounting panel and make electric putter's extension end contradict the dorsal part of brake block.

Furthermore, the dorsal part of brake block is fixed with the connecting rod, electric putter's extension end is fixed with the spliced pole, be constructed on the spliced pole and be used for connecting rod male slot, threaded connection has terminal screw in on the lateral wall of slot hexagon socket head cap screw in the connecting rod.

Further, the control mechanism comprises a rotation speed sensor which is arranged on the shell and used for detecting the rotation speed of the main shaft and a controller which is arranged on the outer wall of the rectangular cylinder, so that when the rotation speed sensor detects that the rotation speed of the main shaft is too high, an electric signal is transmitted to the controller, the controller controls the electric push rod to extend, and the brake pad is pushed to the brake disc to decelerate.

Further, the controller is electrically connected with the electric push rod, and the controller is electrically connected with the rotating speed sensor.

The utility model has the following beneficial effects:

1. when the brake pad of the wind driven generator needs to be replaced, the rod with the sucker only needs to extend into the rectangular cylinder through the replacement window, the brake pad is pulled back to the replacement window, the front end and the rear end of the brake pad are clamped by the clamp and pulled out of the rectangular cylinder, and then a new brake pad is placed in the rectangular cylinder for sliding through the replacement window.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention with the housing removed;

FIG. 3 is a top plan view of FIG. 1 of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;

reference numerals are as follows: 1. a housing; 2. a main shaft; 3. mounting a slotted hole; 4. a disc; 401. a brake disc; 402. an ear plate; 5. a rectangular cylinder; 6. a brake pad; 601. a connecting rod; 7. replacing the window; 8. a drive mechanism; 801. an electric push rod; 802. mounting a plate; 803. connecting columns; 804. inserting slots; 805. a hexagon socket head cap screw; 9. a control mechanism; 901. a rotational speed sensor; 902. a controller; 10. a disk seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.

As shown in fig. 1, 2, 3 and 4, a speed-limiting and braking device of a wind driven generator comprises a casing 1 and a main shaft 2 of the wind driven generator, wherein a mounting slotted hole 3 is symmetrically formed on the main shaft 2, a disc 4 is detachably mounted on the main shaft 2, a rectangular cylinder 5 extending outwards is fixed in the mounting slotted hole 3, a brake pad 6 for braking and decelerating after approaching the disc 4 is arranged in the rectangular cylinder 5 in a sliding manner, a replacing window 7 for placing the brake pad 6 is formed at the top of the rectangular cylinder 5, a driving mechanism 8 for driving the brake pad 6 to approach the disc 4 and a control mechanism 9 for controlling the driving mechanism 8 to open are further included, in some embodiments, when the brake pad 6 of the wind driven generator set needs to be replaced, a rod with a sucker only needs to extend into the rectangular cylinder 5 through the replacing window 7, the brake pad 6 is pulled to the replacing window 7, and then a clamp is used for clamping the front end and the back end of the brake pad 6, the brake pad 6 is pulled out of the rectangular cylinder 5, then a new brake pad 6 is placed in the rectangular cylinder 5 through the replacement window 7 to slide, the replacement mode is not required to disassemble the casing 1, the casing 1 is directly replaced outside, the replacement is very convenient, and the maintenance cost of the wind driven generator is reduced, more specifically, firstly, the casing 1 is installed on the ground through a support column, and a rotating shaft is rotatably installed on the casing 1, the structures are the existing wind driven generator unit structures, so the description is not repeated, when the brake pad 6 is replaced, a maintainer climbs to the casing 1, extends into the rectangular cylinder 5 through the replacement window 7 through a rod with a sucker, pulls the brake pad 6 back to the replacement window 7, then clamps the front end and the rear end of the brake pad 6 to pull the brake pad out of the rectangular cylinder 5 through the clips, then places the new brake pad 6 in the rectangular cylinder 5 through the replacement window 7 to slide, the replacement of the brake block 6 is realized, the design greatly reduces the later maintenance cost, and the design has a popularization prospect.

As shown in fig. 1 and 2, in some embodiments, two disc bases 10 arranged oppositely are welded on a main shaft 2, each disc 4 includes two brake discs 401 which are semicircular and symmetrically wrapped outside the main shaft 2, ear plates 402 attached to the disc bases 10 are fixed on the two brake discs 401, and the ear plates 402 are fixed on the disc bases 10 through fastening bolts, so that the brake discs 401 are separately wrapped on the main shaft 2, and the brake discs 401 can be replaced when the wind turbine generator system is overhauled, so that the brake discs 401 used for a long time can be conveniently replaced.

As shown in fig. 1, 2, and 4, in some embodiments, both ends of the rectangular cylinder 5 penetrate through, the driving mechanism 8 includes an electric push rod 801 and a mounting plate 802 that closes one end of the rectangular cylinder 5 extending outward, the mounting plate 802 is assembled at an end of the rectangular cylinder 5 by screws, and a fixed end of the electric push rod 801 is mounted on the mounting plate 802, and an extending end of the electric push rod 801 abuts against a back side of the brake pad 6, when the brake pad 6 is replaced, the electric push rod 801 only needs to be extended to a shortest position, and at this time, the brake pad 6 can be pulled out from the replacement window 7, so as to replace a new brake pad 6, and when major repair is performed, the mounting plate 802 can be removed, so as to replace the electric push rod 801.

As shown in fig. 1 and 4, in some embodiments, a connecting rod 601 is fixed on the back side of the brake pad 6, a connecting rod 803 is fixed on the extended end of the electric push rod 801, a slot 804 for inserting the connecting rod 601 is formed on the connecting rod 803, an inner hexagon bolt 805 with the tail end screwed into the connecting rod 601 is screwed on the side wall of the slot 804, it should be noted that a round hole for inserting the inner hexagon bolt 805 is formed on the connecting rod 601 here, when the electric push rod 801 is retracted to the shortest, the inner hexagon bolt 805 is detached by using a wrench, and the connecting rod 601 is pulled out of the slot 804 and then pulled out of the brake pad 6.

As shown in fig. 1 and 2, in some embodiments, the control mechanism 9 includes a rotation speed sensor 901 mounted on the housing 1 for detecting the rotation speed of the spindle 2 and a controller 902 mounted at the outer wall of the rectangular cylinder 5, so as to form a braking state in which when the rotation speed sensor 901 detects that the rotation speed of the spindle 2 is too high, an electric signal is transmitted to the controller 902, and the controller 902 controls the electric push rod 801 to extend and push the brake pad 6 to the brake disc 401 for deceleration.

As shown in fig. 1 and fig. 2, in some embodiments, the controller 902 is electrically connected to the electric push rod 801, and the controller 902 is electrically connected to the rotation speed sensor 901.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a aerogenerator's speed limit, brake equipment, includes aerogenerator's casing (1), main shaft (2), its characterized in that, the symmetrical structure has installation slotted hole (3) on main shaft (2), demountable installation has dish (4) on main shaft (2), there is an outside rectangular cylinder (5) of extension in installation slotted hole (3), it is used for being close to slide in rectangular cylinder (5) brake block (6) that carry out the brake speed reduction behind dish (4), the top of rectangular cylinder (5) is constructed and is used for putting into change window (7) of brake block (6), still includes the drive brake block (6) are close to actuating mechanism (8) and the control mechanism (9) that control actuating mechanism (8) of dish (4) opened.

2. The speed-limiting and braking device of the wind driven generator according to claim 1, wherein two disk bases (10) which are arranged oppositely are welded on the main shaft (2), each disk (4) comprises two brake disks (401) which are semicircular in structure and symmetrically wrapped outside the main shaft (2), lug plates (402) which are attached to the disk bases (10) are fixed on the two brake disks (401), and the lug plates (402) are fixed on the disk bases (10) through fastening bolts.

3. The speed-limiting and braking device of the wind driven generator as claimed in claim 2, wherein both ends of the rectangular cylinder (5) are penetrated, the driving mechanism (8) comprises an electric push rod (801) and a mounting plate (802) which is sealed at one end of the rectangular cylinder (5) extending outwards, the mounting plate (802) is assembled at the end of the rectangular cylinder (5) through screws, and the fixed end of the electric push rod (801) is mounted on the mounting plate (802) and the extended end of the electric push rod (801) is abutted against the back side of the brake pad (6).

4. A speed limiting and braking device of a wind driven generator according to claim 3, characterized in that a connecting rod (601) is fixed on the back side of the brake pad (6), a connecting column (803) is fixed on the extended end of the electric push rod (801), a slot (804) for inserting the connecting rod (601) is formed on the connecting column (803), and an inner hexagonal bolt (805) with the tail end screwed into the connecting rod (601) is connected to the side wall of the slot (804) in a threaded manner.

5. The speed limiting and braking device of the wind driven generator is characterized in that the control mechanism (9) comprises a rotation speed sensor (901) which is arranged on the shell (1) and is used for detecting the rotation speed of the main shaft (2) and a controller (902) which is arranged at the outer wall of the rectangular cylinder (5), so as to form a braking state that when the rotation speed sensor (901) detects that the rotation speed of the main shaft (2) is too high, an electric signal is transmitted to the controller (902), the controller (902) controls an electric push rod (801) to extend, and a brake pad (6) is pushed to the brake disc (401) to decelerate.

6. The speed-limiting and braking device of the wind driven generator as claimed in claim 5, wherein the controller (902) is electrically connected with the electric push rod (801), and the controller (902) is electrically connected with the rotation speed sensor (901).