KR100988920B1 - Rorter brake for oil pressure braking of wind generator - Google Patents

Abstract

PURPOSE: A rotor brake for a wind generator using hydraulic force is provided to control a gap between a disc and a pad and to simplify and miniaturize the structure of the brake. CONSTITUTION: A rotor brake for a wind generator using hydraulic force comprises a base panel(11), a supporter(12), a caliper installation plate(13), pad coupling plates(23,24), and calipers(18,19). The base panel is fixed to a speed increasing gear box. The supporter is vertically positioned in the base panel. The caliper installation plate is installed in the supporter and is pressed by a floating spring(15). A disc(16) is inserted into the top and bottom of the caliper installation plate. The pad coupling plates have pads(22) coupled to the calipers.

Description

Rotor brake for oil pressure braking of wind generator

The present invention relates to a rotor brake for a wind power generator which is braked by hydraulic pressure. More specifically, the gap between the disc and the pad can be adjusted, the configuration is simplified and miniaturized, the braking performance and durability is improved, the convenience of maintenance, the pad. It is to provide a rotor brake for wind power generators that is braked by hydraulic power with functions such as detecting wear and notifying replacement time.

Wind turbines consist of a rotor drive at the top of the tower that transfers and converts the torque gained through the blades to the generator, which maintains efficient wind turbines through periodic maintenance.

The rotor drive is provided with a speed increase gearbox and a speed generator and a generator connected to the high speed shaft, and a housing including a bearing for supporting a low speed shaft for transmitting the rotational force of the blade is fixed to the speed increase gearbox.

In addition, a rotor brake, which is braked by hydraulic pressure, is installed between the speed increase gearbox and the generator connected to the high speed shaft to control the rotational force of the high speed shaft.

The rotor brake stands a pair of supporters on the base panel is fixed to the gear box, the caliper mounting plate is installed on the supporter, the caliper through a floating spring between the caliper mounting plate and the spring support plate coupled to the upper supporter Press the mounting plate against the base panel.

The caliper mounting plate is provided with a pair of calipers to form a groove into which the disc is inserted into the high-speed shaft is inserted to install a pad coupling plate to which the pad is coupled, but the upper caliper hydraulically to lift the pad coupling plate A working cylinder is formed integrally, and a piston integrally formed with a pressure plate fixed to the pad coupling plate is installed.

In addition, the upper caliper was provided with a bolt screwed to the pad coupling plate to protrude to the outside, and the bolt was configured through a caliper spring to elastically support the pad coupling plate toward the caliper.

However, in the conventional rotor brake, the cylinder is integrally formed with the caliper, and thus, the entire brake must be completely disassembled to repair the cylinder.

In addition, floating springs and caliper springs are externally exposed, and there are concerns about malfunction due to external factors.As the brake pad gap adjustment function, the moving parts of the caliper springs, which are most important, are placed far away from the center of gravity. As a result, there was no function of notifying the wear of the pads, and the administrator had to check the naked eye from time to time.

Therefore, the present inventors have studied and developed the present invention to solve the above-mentioned problems of the rotor brake for the conventional wind power generator. In the present invention, the gap between the disc and the pad can be adjusted, and the configuration is simplified and downsized, and the braking performance and durability are improved. In order to provide a rotor brake for a wind power generator equipped with functions such as convenience of maintenance, detecting pad wear, and notifying a replacement time, the present invention has been researched and developed with the technical problem of the present invention.

In the present invention as a problem solving means is installed in the rotor brake for a wind turbine, which is installed to control the rotational force of the high-speed shaft between the gearbox and the generator connected to the high-speed shaft, the braking by hydraulic pressure; A base panel fixed to the gearbox; A pair of supporters erected on the base panel and having a spring support plate coupled to an upper end thereof; A caliper mounting plate pressurized by a floating spring pressurized toward the base panel while installed in the supporter; A caliper assembled with bolts such that a disc inner portion into which a disc is inserted is formed at an upper portion and a lower portion of the caliper mounting plate; A pad coupling plate coupled with pads coupled to upper and lower calipers to interview the disk; It was installed only in the upper caliper and composed of a cylinder fixing the pad coupling plate to the pressure plate coupled to the piston.

In addition, the lower caliper was provided with adjustment bolts on both sides so that the bolt head is in contact with the base panel, and both sides of the upper caliper formed a guide hole and combined the shear pins fixed to the pressure plate to shear the shear force by the frictional force with the disk. It is configured to be delivered directly to the caliper through the pin.

And in the present invention is provided with an elastic means for reliably relaxing the pad and the disk by closely contacting the pad coupling plate toward the caliper in the state that the fluid pressure is removed; The elastic means is provided with four places, consisting of a bolt which is fixed to the back of the pressure plate through the dig hole formed in the caliper, and a spring interposed between the caliper and the bolt head,

Further installing pad wear detection means for detecting pad wear; The pad abrasion detecting means fixed the limiter switch to the upper caliper, and the bracket was fixed to a position corresponding to the limiter switch to the pressure plate.

According to the rotor brake for the wind power generator provided by the hydraulic force provided by the present invention, the caliper (Caliper) can be left and right floating (± 5 mm) by the floating spring and the adjustment bolt, the center line deviation between the disc and the caliper when the brake is installed Easy to adjust

The adjustment bolt can be used to adjust the left and right air gaps equally between the disc and the pad.

Since the pad wear detection means is provided, it detects the wear state of the brake pad and informs the time of pad replacement, which is convenient for maintenance and repair.

The mono-cylinder structure can be installed in a narrow space, and the pistonless side can be installed in a narrow space because no maintenance space is required.

When the brakes are released, the pads can be completely removed from the disc to prevent unnecessary pad wear.

The cylinder part into which hydraulic power is applied can be maintained without having to completely release the entire brake.

As the brake actuation and adjustment function, the most important spring is simplified and placed near the center of gravity of the moving part, which is advantageous for the accuracy of the function and the protection of the spring.

Shear pins are provided between the pad coupling plate and the caliper, so that braking force can be directly transmitted to the brake body through the caliper, which is advantageous for braking performance and durability.

1 is a state in which the rotor brake provided by the present invention installed in the wind turbine
Figure 2 is a plan view showing an embodiment of the rotor brake provided in the present invention
3 is a cross-sectional view taken along the line AA of FIG.
4 is a cross-sectional view taken along line BB of FIG.
5 is a cross-sectional view taken along line CC of FIG.
Figure 6 is a cross-sectional view of the elastic means applied to the present invention

EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention is demonstrated based on an accompanying drawing.

The wind power generator 1 using the wind which is generally used has a rotor drive 4 which transmits and converts the rotational force obtained through the blade 2 to the generator 3 at the top of a tower as shown in FIG. 1. . The rotor drive 4 is provided with a speed increasing gearbox 5 and a speed increasing gearbox 5 and a generator 3 connected to the high speed shaft 6, and the speed increasing gearbox 5 and the high speed shaft 6. Between the generators 3 connected to the rotor brake 10 is necessarily installed to control the rotational force of the high speed shaft (6).

In this invention, the structure of the rotor brake 10 by which the braking is performed by the said hydraulic pressure is actively improved.

In the present invention, a pair of supporters 12 are mounted on the base panel 11 fixed to the speed increasing gearbox 5, and the supporters 12 are provided with caliper mounting plates 13.

A spring support plate 14 is coupled to an upper end of the supporter 12 to which the caliper mounting plate 13 is coupled, and a floating spring 15 for pressing the caliper mounting plate 13 toward the base panel 11 on the supporter 12. The caliper mounting plate 13 is pressurized toward the base panel 11 through the lateral side.

The calipers 18 and 19 are arranged on the upper and lower portions of the caliper mounting plate 13 so as to form the disk inlets 17 into which the disks 16 are inserted.

The assembly structure of the upper and lower calipers (18) and (19) and the caliper mounting plate (13) forms assembly holes (13a) and (18a) in the caliper mounting plate (13) and the upper caliper (18), and the lower caliper (19). The screw holes 19a are formed to be mutually assembled, and the lower caliper 19 is provided with adjustment bolts 21 on both sides thereof so that the bolt head 21 is in contact with the base panel 11.

This configuration is the left and right floating (± 5 mm) of the caliper (19) while the bolt head (21a) in contact with the base panel 11 when loosening and tightening the adjusting bolt 21 is coupled to the lower caliper (19) This makes it possible to easily adjust the centerline deviation between the disc 16 and the calipers 18 and 19 when installing the brake 1.

The pads 22 are assembled to the upper and lower calipers 18 and 19 by assembling the pad coupling plates 23 and 24 to which the pads 22 interviewing the disks 16 are coupled. Make it easy to replace.

In addition, in the present invention, the cylinder 26 is assembled to the upper caliper 18 only with the bolts 27, and the pad coupling plate 23 is fixed to the pressure plate 28a coupled to the piston 28.

Guide holes 18b are formed at both sides of the upper caliper 18, and the shear pins 29 fixed to the pressure plate 28a are coupled to each other. This configuration is configured to be transmitted directly to the caliper 18 through the shear pin 29 when a strong shear force due to friction with the disk 16 is transmitted to the pad coupling plate 23, in particular, the cylinder 26 is not excessive. As a result, the braking performance can be maintained.

In the present invention, the elastic means 30 is further provided to reliably relax the pad 22 with the disk 16 by bringing the pad coupling plate 23 into close contact with the caliper 18 in the state where the fluid pressure is removed. The elastic means 30 is provided with four places, the bolt 32 is fixed to the back surface of the pressure plate 28a through the dig hole 31 formed in the caliper 18, the caliper 18 and the bolt It consists of the structure containing the spring 33 interposed so that it may be located between heads.

The present invention constituted as described above can be installed in a narrow space with a mono-cylinder 26 structure, the side without the piston 28 can be installed in a narrow space because no maintenance space is required, the hydraulic pressure is applied to the cylinder 26 The separate parts can be maintained without completely releasing the entire brake 10. In addition, according to the present invention, the elastic means 30 is installed. When the fluid pressure is removed as described above, the pad coupling plate 23 is coupled to the brake 10 while expanding the spring 33 compressed by the fluid pressure. The pressing plate 28a is brought into close contact with the caliper 18 to reliably relax the disk 16 and the pad 22 to prevent unnecessary friction.

On the other hand, the pad wear detection means 40 is provided in the present invention.

The pad abrasion detecting means 40 fixes the limiter switch 41 to the upper caliper 18, and the bracket 42 at a position corresponding to the limiter switch 41 on the pressure plate 28a coupled to the upper caliper 18. ) Is fixed configuration.

The pad wear detection means 40 is in contact with the limiter switch 41 to the bracket 42 when the brake 10 is operated while the pad 22 is worn. In this case, the limiter switch 41 is electrically connected. The notification means (not shown) will notify the manager that the pad 22 is worn.

In the above detailed description of the present invention, a preferred embodiment has been described, but various modifications are possible without departing from the scope of the present invention, and the protection scope of the present invention is limited to the described embodiments. It should not be, but should be determined by the equivalents as well as the claims to be described later.

The rotor brake 10 provided by the present invention can be used as a brake for various industrial machines as well as the wind power generator 1.

1: wind power generator 2: blade
3: generator 4: rotor drive
5: speed gearbox 6: high speed shaft
10: rotor brake 11: base panel
12: Supporter 13: Caliper mounting plate
13a, 18a: Assembling hole 14: Spring support plate
15: Floating Spring 16: Disc
17: Inside disc 18, 19: Caliper
18b: Guide hole 19a Screw hole
20: Bolt 21: Adjustment bolt
21a bolt head 22: pad
23, 24: Pad coupling plate 25: Bolt
26: A cylinder 27: Bolt
28: piston 28a: pressure plate
29: shear pin 30: elastic means
31: Hole dig 32: Bolt
33: spring 40: pad wear detection means
41: limiter switch 42: bracket

Claims (4)

Rotor brake for the wind power generator 1, which is installed between the speed increase gearbox 5 and the generator 3 connected to the high speed shaft 6 to control the rotational force of the high speed shaft 6, and is braking by hydraulic pressure. In (10);
A base panel 11 fixed to the speed increasing gearbox 5;
A pair of supporters 12 mounted on the base panel 11 and having a spring support plate 14 coupled to an upper end thereof;
A caliper mounting plate 13 pressurized by a floating spring 15 that presses toward the base panel 11 in a state in which the supporter 12 is installed;
A caliper (18) (19) assembled with bolts (20) so that the disc inner portion (17) into which the disc (16) is inserted is formed at the upper and lower portions of the caliper mounting plate (13);
Pad coupling plates (23) (24) having pads (22) coupled to upper and lower calipers (18) and (19) so as to be interviewed with the disk (16);
A cylinder 26 installed only at the upper caliper 18 and fixing the pad coupling plate 23 to the pressure plate 28a coupled to the piston 28;
The lower caliper (19) is a rotor brake for a wind power generator for braking by hydraulic power, characterized in that the adjustment bolt 21 is installed on both sides so that the bolt head is in contact with the base panel (11).
The method of claim 1;
Guide holes 18b are formed at both sides of the upper caliper 18, and the shear pins 29 fixed to the pressure plate 28a are coupled to each other so that shear force due to frictional force with the disk 16 is transmitted through the shear pins 29. A rotor brake for a wind turbine, which is braked by hydraulic force, characterized in that it is configured to be transmitted directly to (18).
The method of claim 1 or 2;
Further providing elastic means (30) for reliably relaxing the pad (22) with the disk (16) by bringing the pad coupler (23) into close contact with the caliper (18) in the state where the fluid pressure is removed;
Four places of the elastic means 30 are installed, the bolt 32 is fixed to the back surface of the pressure plate 28a through the dig hole 31 formed in the caliper 18, the caliper 18 and the bolt head A rotor brake for a wind turbine braking by hydraulic force, characterized by comprising a spring 33 interposed so as to be positioned therebetween.
The method of claim 1 or 2;
Further install pad wear detection means (40) for detecting pad wear;
The pad wear detection means 40 is fixed to the upper limiter switch 41 to the caliper 18, the pressing plate 28a is characterized in that the bracket 42 is fixed to a position corresponding to the limiter switch 41 Rotor brakes for wind turbines that are braked by pressure.

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