CN204716835U - A kind of Wind turbines driftage brake structure - Google Patents
A kind of Wind turbines driftage brake structure Download PDFInfo
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- CN204716835U CN204716835U CN201520444225.6U CN201520444225U CN204716835U CN 204716835 U CN204716835 U CN 204716835U CN 201520444225 U CN201520444225 U CN 201520444225U CN 204716835 U CN204716835 U CN 204716835U
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Abstract
The utility model discloses a kind of Wind turbines driftage brake structure, it comprises cylinder body, regulator bolts, brake cover plate, special-shaped piston, break cylinder body, adapter flange, the through-hole diameter of adapter flange is greater than the external diameter of regulator bolts, the internal thread matched with the large end screw thread of the T-shaped shape of adapter flange is provided with at the opening end terminal interior surface of cylinder body, described special-shaped internal piston is through hole, the internal thread matched with the T-shaped shape small end screw thread of adapter flange is provided with at the small end terminal interior surface of special-shaped piston, break cylinder body and special-shaped piston match and form an oil pocket, the break cylinder body of the position of oil pocket is provided with pressure oil oil hole, break cylinder body is connected and fixed by bolt and brake cover plate, Sealing is provided with on the surface of break cylinder body and special-shaped piston.The utility model only by the adjustment regulating oil pocket hydraulic fluid pressure size just can realize brake torque, thus need substantially increase the life-span of oil hydraulic motor and screw pair.
Description
Technical field
The utility model relates to wind-driven generator and manufactures field, particularly relates to a kind of Wind turbines driftage brake structure.
Technical background
Patent No. CN204239573 discloses a kind of single-top driftage brake structure, it comprises regulator bolts, brake cover plate, oil hydraulic motor, power transmission sleeve, oil hydraulic motor bearing, regulator bolts and brake cover plate are together by a threaded connection, described power transmission sleeve is arranged between the output shaft of oil hydraulic motor and regulator bolts, the inside, one end of power transmission sleeve is provided with the center hole matched with hydraulic motor output shaft, the other end inside is provided with the hole with regulator bolts fit heads, power transmission sleeve rotates with hydraulic motor output shaft with regulator bolts, oil hydraulic motor erection support is bolted on brake cover plate top, oil hydraulic motor is bolted on oil hydraulic motor erection support.This driftage brake structure, because blower fan needs frequently to windage yaw boat in power generation process, causes that automatic compensator needs are positive and negative frequently transfers the different braking moment of switching size two kinds, easily causes the mechanical failure of automatic compensator and threads of lead screw.
Model utility content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, the Wind turbines driftage brake structure providing a kind of good reliability, automaticity high.
The utility model is achieved through the following technical solutions: a kind of Wind turbines driftage brake structure, it comprises cylinder body, regulator bolts, brake cover plate, also comprise special-shaped piston, break cylinder body, adapter flange, the inside of described adapter flange is through hole, the through-hole diameter of adapter flange is greater than the external diameter of regulator bolts, the outside of adapter flange is threaded T-shaped shape, the internal thread matched with the large end screw thread of the T-shaped shape of adapter flange is provided with at the opening end terminal interior surface of cylinder body, described special-shaped internal piston is through hole, the outside of special-shaped piston is T-shaped shape, the internal thread matched with the T-shaped shape small end screw thread of adapter flange is provided with at the small end terminal interior surface of special-shaped piston, break cylinder body and special-shaped piston match and form an oil pocket, the break cylinder body of the position of oil pocket is provided with pressure oil oil hole, break cylinder body is connected and fixed by bolt and brake cover plate, Sealing is provided with on the surface of break cylinder body and special-shaped piston.
In order to monitor the wear condition of brake bush, also comprise displacement transducer, institute's displacement sensors is arranged in brake cover plate, and displacement transducer monitors the wear extent of driftage friction plate by the change in displacement measuring cylinder body.
Advantageous Effects of the present utility model is, brake torque adjustment does not need that oil hydraulic motor is frequently positive and negative transfers realization, only just can need realize by regulating oil pocket hydraulic fluid pressure size, because oil hydraulic motor does not need clockwise and anticlockwise frequently to switch, regulator bolts and brake cover plate screw-thread fit do not need frequent positive anti-switching yet, oil hydraulic motor only need rotate forward according to the time parameter timing of Operation system setting, thus substantially increase the life-span of oil hydraulic motor and screw pair, during working conditions change by hydraulic system to the loading of master cylinder hydraulic fluid port and unloading, special-shaped piston reverses direction active force is made to produce rapidly or disappear, but not there is displacement movement in special-shaped piston, shorter than other mechanical drive mode reaction time.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
With reference to accompanying drawing, a kind of Wind turbines driftage brake structure, it comprises cylinder body 6, disc spring group 8, disc spring seat 9, regulator bolts 13, brake cover plate 4, power transmission sleeve 14, oil hydraulic motor 1, also comprise special-shaped piston 11, break cylinder body 5, adapter flange 10, Sealing 15, cylinder body 6 one end is connected with Yaw brake block 7, cylinder body 6 the other end is connected with break cylinder body 5, cylinder body 6 is provided with disc spring seat 9, disc spring group 8 is placed on disc spring seat 9, oil hydraulic motor 1 is arranged on break cylinder body 5 by oil hydraulic motor bearing 2, the inside of described adapter flange 10 is through hole, the through-hole diameter of adapter flange 10 is greater than the external diameter of regulator bolts 13, the outside of adapter flange 10 is threaded T-shaped shape, the internal thread matched with the large end screw thread of the T-shaped shape of adapter flange 10 is provided with at the opening end terminal interior surface of cylinder body 6, described special-shaped piston 11 inside is through hole, the outside of special-shaped piston 11 is T-shaped shape, the internal thread matched with the T-shaped shape small end screw thread of adapter flange 10 is provided with at the small end terminal interior surface of special-shaped piston 11, break cylinder body 5 and special-shaped piston 11 match and form an oil pocket, the break cylinder body 5 of the position of oil pocket is provided with pressure oil oil hole 12, break cylinder body 5 is connected and fixed by connecting bolt and brake cover plate 4, Sealing 15 is provided with at break cylinder body 5 and the contact surface of special-shaped piston 11, in order to monitor the wear condition of Yaw brake block 7, also comprise displacement transducer 3, institute's displacement sensors 3 is arranged in brake cover plate 4, displacement transducer 3 monitors the wear extent of Yaw brake block 7 by the change in displacement measuring cylinder body 6.
During braking operation, the oil pressure parameter that oil hydraulic motor 1 is arranged according to hydraulic system and time parameter timing rotate forward, power transmission sleeve 14 drives regulator bolts 13 to move downward, disc spring group 8 is compressed by regulator bolts 13 and is produced distortion, promote cylinder body 6 and compress Yaw brake block 7, keep the braking moment needed for driftage brake.
During driftage work, hydraulic system passes into oil pressure according to the instruction of controller to the pressure oil oil hole 12 on break cylinder body 5, special-shaped piston 11 bears opposition, by the strength transmission of adapter flange 10, offset the spring force of most of disc spring group 8 pairs of cylinder bodies 6, only appropriate during maintenance set yaw damping torque, for improving stability during set yaw.
Claims (2)
1. a Wind turbines driftage brake structure, it comprises cylinder body, regulator bolts, brake cover plate, it is characterized in that, also comprise special-shaped piston, break cylinder body, adapter flange, the inside of described adapter flange is through hole, the through-hole diameter of adapter flange is greater than the external diameter of regulator bolts, the outside of adapter flange is threaded T-shaped shape, the internal thread matched with the large end screw thread of the T-shaped shape of adapter flange is provided with at the opening end terminal interior surface of cylinder body, described special-shaped internal piston is through hole, the outside of special-shaped piston is T-shaped shape, the internal thread matched with the T-shaped shape small end screw thread of adapter flange is provided with at the small end terminal interior surface of special-shaped piston, break cylinder body and special-shaped piston match and form an oil pocket, the break cylinder body of the position of oil pocket is provided with pressure oil oil hole, break cylinder body is connected and fixed by bolt and brake cover plate, Sealing is provided with on the surface of break cylinder body and special-shaped piston.
2. a kind of Wind turbines driftage brake structure according to claim 1, it is characterized in that, also comprise displacement transducer, institute's displacement sensors is arranged in brake cover plate, and displacement transducer monitors the wear extent of driftage friction plate by the change in displacement measuring cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444225.6U CN204716835U (en) | 2015-06-26 | 2015-06-26 | A kind of Wind turbines driftage brake structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444225.6U CN204716835U (en) | 2015-06-26 | 2015-06-26 | A kind of Wind turbines driftage brake structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716835U true CN204716835U (en) | 2015-10-21 |
Family
ID=54315837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520444225.6U Active CN204716835U (en) | 2015-06-26 | 2015-06-26 | A kind of Wind turbines driftage brake structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204716835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061114A (en) * | 2018-01-03 | 2018-05-22 | 徐州五洋科技股份有限公司 | A kind of braking device for wind-driven generator |
| CN112326263A (en) * | 2020-10-28 | 2021-02-05 | 江苏徐工工程机械研究院有限公司 | Wet brake life estimation system and method |
-
2015
- 2015-06-26 CN CN201520444225.6U patent/CN204716835U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061114A (en) * | 2018-01-03 | 2018-05-22 | 徐州五洋科技股份有限公司 | A kind of braking device for wind-driven generator |
| CN108061114B (en) * | 2018-01-03 | 2024-02-13 | 徐州五洋科技股份有限公司 | Braking device for wind driven generator |
| CN112326263A (en) * | 2020-10-28 | 2021-02-05 | 江苏徐工工程机械研究院有限公司 | Wet brake life estimation system and method |
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| GR01 | Patent grant |