CN203335685U - Yawing brake of wind power generation device - Google Patents
Yawing brake of wind power generation device Download PDFInfo
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- CN203335685U CN203335685U CN2013204238518U CN201320423851U CN203335685U CN 203335685 U CN203335685 U CN 203335685U CN 2013204238518 U CN2013204238518 U CN 2013204238518U CN 201320423851 U CN201320423851 U CN 201320423851U CN 203335685 U CN203335685 U CN 203335685U
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Abstract
The utility model discloses a yawing brake of a wind power generation device and a control method of the yawing brake. The brake comprises two braking calipers which are identical in structure. The two braking calipers are connected through eight high-strength bolts and symmetrically installed on the upper side and the lower side of a braking disc. The braking calipers are of a bilateral symmetry structure and comprise braking supports, disk spring sets, guide blocks, adjusting bolts, locknuts, pistons, wear indicators, dustproof rings A, high-pressure sealing rings A, guide bands A, guide bands B, high-pressure sealing rings B, guide bands C and dustproof rings B. By the adoption of the mode of disk spring hydraulic combined loading, in the yawing process of a fan, pressure does not need to be supplied by a hydraulic system, yawing braking force is generated only by loading disk spring force, and the phenomenon that the sealing rings are damaged because the sealing rings bear hydraulic pressure and tangential force at the same time in the yawing process is avoided; the multiple sets of guide bands are adopted, the oil leakage problem is solved, working pressure of a hydraulic control system is reduced, and the service life of the sealing rings can be effectively prolonged.
Description
Technical field
The utility model relates to a kind of yawing brake system that relates to wind power plant, particularly a kind of off-course brake of wind power plant.
Background technique
Yaw system is one of requisite composition system of horizontal axis wind-driven generator group, and Main Function has two: the first makes the variation of wind power generating set box haul, in state windward, takes full advantage of wind energy all the time, improves generating efficiency; It two is to provide necessary braking moment, to ensure the safe operation of wind power generating set.
Off-course brake is the critical piece in yawing brake system.When blower fan normally moves, off-course brake provides enough braking force, and cabin is clamped in to specific position; When needs are gone off course, off-course brake provides a less braking force, and cabin can be rotated around vertical axis reposefully.
Existing wind generating set yaw break, what adopt is hydraulic loaded type break open in usual, produce a lower pressure by the relief valve in hydraulic system in the fan yaw process braking force is provided, the result produced like this is, brake plunger is subject to the effect of hydraulic coupling and tangential force and is easy to produce oil leakage phenomenon in sealing, and the long-time overflow of relief valve easily causes the system heating; Run in addition when electrical network disconnects or hydraulic system breaks down, break can't provide damping, and now wind-driven generator, in runaway condition, often causes dangerous generation.
As follows with the immediate prior art of the utility model:
1, " a kind of pinhole inserted yaw brake of wind electricity generator " (patent No.: 200610012287.5), a kind of inserted type off course brake is provided, utilize mechanical position limitation to realize braking function, this pinhole inserted yaw brake need to be processed a plurality of circular cone pin-and-holes on brake disc, the processing technology complexity, and, during long-time running, taper pin easily causes mechanical deterioration near the surface brake disc conical bore.
2, " adjustable off-course brake of wind motor " (patent No.: 200810203274.5), the adjustable brake calipers that utilization is arranged symmetrically with is realized the driftage braking function of blower fan, due to the restriction of structure, cause off-course brake bulk excessive, can't be widely used in existing wind power generating set.
3, " yawing brake device of wind generating set " (patent No.: 200920028638.0), what adopt is current the most frequently used traditional pure hydraulic loaded pattern, during long-term work, seal ring easily damages, and can't provide yaw damping in hydraulic system fault or electric network power-fail situation, easily cause blower fan initiation potential out of control.
4, " off-course brake " (patent No.: 200920224175.5), adopt the hydraulic loaded pattern, increased the working life that guidance tape has extended seal ring on oil cylinder, shortcoming is in hydraulic system fault or electric network power-fail situation, break can't continue to provide damping, easily causes blower fan initiation potential out of control.
5, " a kind of wind driven generator yaw brake system " (patent No.: 201020205838.1), for existing equipment, in the electric network power-fail situation, can't provide the problem of damping to improve, adopt the mode of n hydraulic loaded type off-course brake open in usual and m Normally closed type spring loaded type off-course brake combination, shortcoming is that the off-course brake of two kinds of patterns need to be controlled respectively, the break One's name is legion, assembling difficulty increases, and needs to revise the mounting interface of main frame.
6, " off-course brake " (patent No.: each brake calipers 201020580057.0) arranges 3 oil cylinders, wherein two adopt hydraulic loaded, another one adopts spring to load, two kinds of driftage brakings that pattern replaces or works simultaneously and realize different demands, shortcoming is that the spring load capability is limited, and areal of friction facing is little, can not meet the demand of larger yaw braking square.
7, " off-course brake that wind power generating set is used " (patent No.: 201220056396.8) make certain improvements for traditional hydraulic loaded type off-course brake, mainly to have increased the brake block Returnning spring, but the Leakage often easily occurred for this type of off-course brake, and the problem that in emergency circumstances can not brake does not all propose to improve.
8, " wind generating set yaw break " (patent No.: 201220215704.7), in case of emergency can not provide the problem of damping in order to solve traditional off-course brake, 3 oil cylinders of brake calipers are divided into to two types, two oil cylinders still adopt hydraulic loaded, another oil cylinder adopts spring to load, both respectively or be combined with, shortcoming is owing to adopting spring-loaded oil cylinder to only have one, the moment provided is limited, can't meet the demand of larger yaw braking square, the improvement to the hydraulic stroker Leakage is not mentioned in this design in addition.
Summary of the invention
The problems referred to above that exist for solving prior art, the utility model will design a kind of Leakage that both can overcome existing off-course brake, can guarantee again in electrical network disconnects or hydraulic system breaks down situation, still can provide reliable braking force, make the off-course brake of the wind power plant that wind power generating set can safe operation.
To achieve these goals, the technical solution of the utility model is as follows: a kind of off-course brake of wind power plant, comprise two identical brake caliperss of structure, two brake caliperss are arranged on the both sides up and down of brake disc by eight high-strength bolt connected symmetrical dendrimers; Described brake calipers is the bilateral symmetry structure, comprise brake holder, dish spring group, guide pad, adjustment bolt, locking nut, piston, wear indicator, dust ring A, high-pressure seal ring A, guidance tape A, guidance tape B, high-pressure seal ring B, guidance tape C and dust ring B, be processed with two oil cylinders on described brake holder, piston is installed in oil cylinder, have the counterbore that dish spring group is installed on piston, dish spring group is compressed and is arranged in the piston counterbore by guide pad, adjusts bolt and lock nut and is arranged on brake holder; Have through hole on the central axis of brake holder, the friction disc wear indicator is arranged in the tapped hole at the friction plate back side by through hole; Brake holder is processed with oil cylinder for the rectangle groove bottom that friction plate is installed, have seal groove on the oil cylinder sidewall, dust ring A, high-pressure seal ring A, guidance tape A and dust ring B are installed respectively, have seal groove on the outer cylinder surface of piston, guidance tape B, high-pressure seal ring B and guidance tape C are installed respectively;
The top of described friction disc wear indicator indicates scale, for the wear condition of observing friction plate, after friction disc wear, wear indicator moves to the brake disc direction with friction plate, the wearing and tearing of friction plate can have influence on the positive pressure size that dish spring group provides, when observe friction disc wear to the regulation thickness the time, unclamp locking nut, tighten the adjustment bolt and compensate, then utilize locking nut locking; When friction disc wear arrives the limit, need more renewal of facing renewal, be totally released locking nut and adjust bolt, the pressure of dish spring group is discharged fully, take out friction plate and changed.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model is the improvement to existing wind power generating set hydraulic yawing break and controlling method.Existing wind power generating set hydraulic yawing break adopts the open type formula, rely on hydraulic pressure to load driftage process and the braking of wind-driven generator, in the driftage process, the sealing of brake plunger is subject to hydraulic pressure and easily produces oil leakage phenomenon with coming from the tangential force effect of friction plate; And when running into that electrical network disconnects or hydraulic system breaks down, break can't provide damping, and now, wind power generating set, in runaway condition, often causes dangerous generation.And the utility model adopts the mode of the hydraulic combined loading of dish spring, in the fan yaw process, do not need hydraulic system that pressure is provided, only by disc spring force, load, produce yaw braking, avoided being sealed in and born the effect of hydraulic coupling and tangential force in the driftage process simultaneously and damage, and adopted many group guidance tapes, solved the Leakage produced due to bad seals; Owing to adopting the braking of dish spring, even therefore disconnect or hydraulic system also can normally maintain damping while breaking down at electrical network; Reduce the working pressure of hydraulic control system, can effectively extend the working life of sealing.
2, with " a kind of pinhole inserted yaw brake of wind electricity generator " (patent No.: 200610012287.5) compare, the utility model is that the frictional damping that utilizes hydraulic coupling, disc spring force to produce realizes braking function, do not need brake disc is carried out to any transformation, and can not damage brake disc.This technology is all not identical with off-course brake structure, the principle of the hydraulic combined loading of dish spring that we design.
3, with " the adjustable off-course brake of wind motor " (patent No.: 200810203274.5) compare, the utility model has taken into full account interface size, installing space of current wind power generating set etc., can in the situation that do not change main machine structure, realize best braking effect.
4, with " the yawing brake device of wind generating set " (patent No.: 200920028638.0), " off-course brake " (patent No.: 200920224175.5), " off-course brake that wind power generating set is used " (patent No.: 201220056396.8) compare, the utility model adopts the hydraulic combined loading of dish spring, the many groups of design guidance tape on oil cylinder and piston, guaranteed that seal ring is not damaged, and do not need any external power supply while braking due to the dish spring, even therefore in hydraulic system fault or electric network power-fail situation, still can provide effective yaw damping, guarantee the normal safe operation of wind-powered electricity generation unit.
5, with " a kind of wind driven generator yaw brake system " (patent No.: 201020205838.1) compare, dish spring of the present utility model loads with hydraulic loaded and only can be realized by a kind of off-course brake simultaneously, HYDRAULIC CONTROL SYSTEM is convenient, and needn't revise main machine structure.
6, with " the off-course brake " (patent No.: 201020580057.0) compare, dish spring of the present utility model is installed on internal piston, each piston can participate in the braking of dish spring, two kinds of modes of hydraulic pressure, and use integrated type friction plate, friction plate and brake disc fitting area are large, can meet the braking requirement of blower fan.
7, with " wind generating set yaw the break " (patent No.: 201220215704.7) compare, the utility model has taken into full account the situation that current equipment often occurs, solved Leakage, and in emergency circumstances still can provide enough dampings, guarantee wind power generating set safety, normal operation.
8, the utility model adopts dish spring and hydraulic combined braking, only need the braking of dish spring group during set yaw, avoided piston seal bear the effect of hydraulic coupling and tangential force simultaneously and damage in the brake disc movement process, and adopt many group guidance tapes, solved the Leakage produced due to bad seals.
9, the positive pressure that dish spring group of the present utility model provides, without the exterior power support, once therefore hydraulic system fault or the unexpected power down of electrical network occur, still can provide certain damping.
10, because the utility model has adopted dish spring and hydraulic combined braking, when unit normally moves, hydraulic coupling and dish spring group pressure are braked simultaneously, have reduced the pressure of hydraulic control system, extend the working life of sealing, have saved the energy simultaneously;
11, hydraulic control system of the present utility model is simple in structure, and reliability is high, is equipped with manual-operated emergent device and energy storage apparatus, the safety of unit under the state of emergency while guaranteeing system power failure or fault.
12, simple in structure, economical and practical, the reliable operation of off-course brake of the present utility model, be convenient to safeguard, the friction disc wear indicator is installed, can observe intuitively the wear condition of friction plate.
The accompanying drawing explanation
3, the total accompanying drawing of the utility model, wherein:
Fig. 1 is the off-course brake outline drawing of the hydraulic combined loading of dish spring.
Fig. 2 is the off-course brake structural representation plan view of the hydraulic combined loading of dish spring.
Fig. 3 is the off-course brake hydraulic control system schematic diagram of the hydraulic combined loading of dish spring.
In figure: 1. brake holder, 2. dish spring group, 3. guide pad, 4. adjustment bolt, 5. locking nut, 6. piston 7. friction disc wear indicators, 8. dust ring A, 9. high-pressure seal ring A, 10. guidance tape A, 11. guidance tape B, 12. high-pressure seal ring B, 13. guidance tape C, 14. dust ring B, 15. friction plate, 16. brake disc, 17. fuel outlet, 18. fuel tank, 19. level meter, 20. cover plate, 21. oil hydraulic pump, 22. coupling, 23. motor, 24. air-strainer, 25. liquid level liquid temperature relay, 26. hand pump, 27. pressure-measuring point A, 28. accumulator, 29. pressure transducer, 30. one-way valve, 31. filter A, 32. relief valve, 33. throttle valve, 34. two-position four-way solenoid directional control valve A, 35. two-position four-way solenoid directional control valve B, 36. filter B, 37. pressure-measuring point B, 38. off-course brake.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.As Figure 1-3, a kind of off-course brake of wind power plant, comprise two identical brake caliperss of structure, and two brake caliperss are arranged on the both sides up and down of brake disc 16 by eight high-strength bolt connected symmetrical dendrimers; Described brake calipers is the bilateral symmetry structure, comprise brake holder 1, dish spring group 2, guide pad 3, adjust bolt 4, locking nut 5, piston 6, wear indicator 7, dust ring A8, high-pressure seal ring A9, guidance tape A10, guidance tape B11, high-pressure seal ring B12, guidance tape C13 and dust ring B14, be processed with two oil cylinders on described brake holder 1, piston 6 is installed in oil cylinder, have the counterbore that dish spring group 2 is installed on piston 6, dish spring group 2 is arranged in the piston counterbore by guide pad 3 compressions, adjusts bolt 4 and locking nut 5 and is arranged on brake holder 1; Have through hole on the central axis of brake holder 1, friction disc wear indicator 7 is arranged in the tapped hole at friction plate 15 back sides by through hole; Brake holder 1 is processed with oil cylinder for the rectangle groove bottom that friction plate 15 is installed, have seal groove on the oil cylinder sidewall, dust ring A8, high-pressure seal ring A9, guidance tape A10 and dust ring B14 are installed respectively, have seal groove on the outer cylinder surface of piston 6, guidance tape B11, high-pressure seal ring B12 and guidance tape C13 are installed respectively;
The top of described friction disc wear indicator 7 indicates scale, for the wear condition of observing friction plate 15, after friction plate 15 wearing and tearing, wear indicator 7 moves to brake disc 16 directions with friction plate 15, the wearing and tearing of friction plate 15 can have influence on the positive pressure size that dish spring group 2 provides, and when observing friction plate 15 and may wear to the thickness of regulation, unclamp locking nut 5, tighten adjustment bolt 4 and compensate, then utilize locking nut 5 lockings; When friction plate 15 may wear to the limit, need more renewal of facing renewal 15, be totally released locking nut 5 and adjust bolt 4, the pressure of dish spring group 2 is discharged fully, take out friction plate 15 and changed.
Controlling method of the present utility model realizes that by the off-course brake hydraulic control system described off-course brake hydraulic control system comprises tank mounting, electric-powered source, manual-operated emergent device, working connection, brake circuit and oil return circuit; Described tank mounting comprises fuel outlet 17, fuel tank 18, level meter 19, cover plate 20, air-strainer 24 and liquid level liquid temperature relay 25, described electric-powered source comprises oil hydraulic pump 21, coupling 22 and motor 23, and described manual-operated emergent device comprises hand pump 26; Described working connection, by accumulator 28, pressure transducer 29, one-way valve 30, filter A31, relief valve 32 and throttle valve 33, is equipped with solenoid directional control valve A34 on described brake circuit, described oil return circuit comprises solenoid directional control valve B35 and filter B 36; Described fuel tank 18 provides hydraulic oil source, and cover plate 20 is installed on fuel tank 18, and liquid level liquid temperature relay 25 and air-strainer 24 are housed on cover plate 20; Oil hydraulic pump 21 is connected with motor 23 by coupling 22, for the off-course brake hydraulic system provides power; When being used for the power down of off-course brake hydraulic control system or fault, uses under the state of emergency by described hand pump; Be provided with pressure-measuring point A27 on working connection, for monitoring working connection pressure, in order to safeguard and pinpoint the problems; Accumulator 28 is for making off-course brake 38 flexible brakings, and minimizing motor 23 numbers of starts, and in the electric network power-fail situation, makes off-course brake 38 maintain braking state; Pressure transducer 29 is for monitoring working connection pressure, and when the working connection underpressure, pressure transducer 29 passes to engine control system by signal, thereby controls motor 23 and oil hydraulic pump 21 startups, is off-course brake hydraulic control system supplementary pressure; Described one-way valve 30 avoids hydraulic oil to reflux to fuel tank 18; Described filter A31 is for filtering hydraulic oil liquid; Described relief valve 32 provides overvoltage protection for the off-course brake hydraulic control system; Pressure relief when described throttle valve 33 is safeguarded for the off-course brake hydraulic control system; The action of described off-course brake 38 is controlled by the two-position four-way solenoid directional control valve A34 with the manual tune function and two-position four-way solenoid directional control valve B35; Described filter B 36 is for the impurity of filtered fluid force feed; Off-course brake 38 is arranged on the outlet port of two-position four-way solenoid directional control valve 34, many off-course brakes 38 are connected in series by hydraulic hose or hard tube, pressure-measuring point B37 is arranged on the exit position of off-course brake 38 oil return circuits, for monitoring off-course brake 38 oil return circuit pressure, in order to safeguard and pinpoint the problems;
Described controlling method comprises the following steps:
A, normally move when generating when wind power generating set, need off-course brake to carry out safety brake, now motor 23 starts, driving oil hydraulic pump 21 rotates, for the off-course brake hydraulic control system provides pressure, hydraulic oil enters the filler opening of off-course brake successively by filter 31, one-way valve 30, two-position four-way solenoid directional control valve A34, pressure oil promotes piston 6 motions, piston 6 promotes friction plate 15 and moves to brake disc 16 directions under the acting in conjunction of hydraulic oil and dish spring group 2, touch the rear generation positive pressure of brake disc 16, realize the braking to brake disc 16; When off-course brake hydraulic control system pressure reaches the pressure of pressure transducer 29 settings, motor 23 stops operating, and the hydraulic pressure that off-course brake 38 relies on accumulators 28 to store maintains braking.When pressure that off-course brake hydraulic control system pressure is set lower than pressure transducer 29, engine control system controls motor 23 and oil hydraulic pump 21 starts, and is off-course brake hydraulic control system supplementary pressure;
B, when wind power generating set need to be gone off course, off-course brake 38 need to provide a less braking force; Now motor 23 stalls, two-position four-way solenoid directional control valve A34 and two-position four-way solenoid directional control valve B35 simultaneously electric commutation, hydraulic oil can't enter off-course brake 38 by two-position four-way solenoid directional control valve A34, the interior remaining hydraulic oil of off-course brake 38 is back to fuel tank 18 by two-position four-way solenoid directional control valve B35, now the piston 6 of off-course brake 38 only is subject to the positive pressure of dish spring group 2, thereby produce friction torque on brake disc 16, realize that wind power generating set steadily goes off course.
Adopt the off-course brake of the hydraulic combined loading of dish spring of the present utility model, guaranteed system reliability, can effectively reduce the maintenance and the renewal cost that cause due to the seal ring leakage of oil, comprise cost of labour, lifting cost, spare parts purchasing expense etc.; Due to the reduction of the type hazard rate, can improve the popularity of enterprise in wind-powered electricity generation kernel component supply field simultaneously, strengthen the core competitiveness of enterprise.
Claims (1)
1. the off-course brake of a wind power plant, it is characterized in that: comprise two identical brake caliperss of structure, two brake caliperss are arranged on the both sides up and down of brake disc (16) by eight high-strength bolt connected symmetrical dendrimers, described brake calipers is the bilateral symmetry structure, comprise brake holder (1), dish spring group (2), guide pad (3), adjust bolt (4), locking nut (5), piston (6), wear indicator (7), dust ring A(8), high-pressure seal ring A(9), guidance tape A(10), guidance tape B(11), high-pressure seal ring B(12), guidance tape C(13) and dust ring B(14), be processed with two oil cylinders on described brake holder (1), piston (6) is installed in oil cylinder, have the counterbore that dish spring group (2) is installed on piston (6), dish spring group (2) is arranged in the piston counterbore by guide pad (3) compression, adjusting bolt (4) and locking nut (5) is arranged on brake holder (1), have through hole on the central axis of brake holder (1), friction disc wear indicator (7) is arranged in the tapped hole at friction plate (15) back side by through hole, brake holder (1) is processed with oil cylinder for the rectangle groove bottom that friction plate (15) is installed, have seal groove on the oil cylinder sidewall, dust ring A(8 is installed respectively), high-pressure seal ring A(9), guidance tape A(10) and dust ring B(14), have seal groove on the outer cylinder surface of piston (6), guidance tape B(11 be installed respectively), high-pressure seal ring B(12) and guidance tape C(13),
The top of described friction disc wear indicator (7) indicates scale, for the wear condition of observing friction plate (15), after friction plate (15) wearing and tearing, wear indicator (7) moves to brake disc (16) direction with friction plate (15), the wearing and tearing of friction plate (15) can have influence on the positive pressure size that dish spring group (2) provides, when observing friction plate (15) and may wear to the thickness of regulation, unclamp locking nut (5), tighten adjustment bolt (4) and compensate, then utilize locking nut (5) locking; While may wear to the limit, need more renewal of facing renewal (15) when friction plate (15), be totally released locking nut (5) and adjust bolt (4), the pressure of dish spring group (2) is discharged fully, take out friction plate (15) and changed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204238518U CN203335685U (en) | 2013-07-16 | 2013-07-16 | Yawing brake of wind power generation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013204238518U CN203335685U (en) | 2013-07-16 | 2013-07-16 | Yawing brake of wind power generation device |
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| CN203335685U true CN203335685U (en) | 2013-12-11 |
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| CN2013204238518U Expired - Fee Related CN203335685U (en) | 2013-07-16 | 2013-07-16 | Yawing brake of wind power generation device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343789A (en) * | 2013-07-16 | 2013-10-09 | 大连华锐重工集团股份有限公司 | Yaw brake of wind power generation device and controlling method thereof |
| CN103697088A (en) * | 2013-12-26 | 2014-04-02 | 长沙壹实达机械有限公司 | Mechanical yaw brake |
| CN104500619A (en) * | 2014-12-17 | 2015-04-08 | 江西华伍制动器股份有限公司 | Wind power active type hydraulic yawing disk type brake |
| CN105221613A (en) * | 2014-06-13 | 2016-01-06 | 申克霍夫曼碳科技股份公司 | For the driftage braking device of wind energy plant |
| CN109990017A (en) * | 2019-04-29 | 2019-07-09 | 焦作瑞塞尔盘式制动器有限公司 | Yawing brake of aerogenerator and wind-driven generator |
| CN110094419A (en) * | 2019-05-20 | 2019-08-06 | 珠海格力电器股份有限公司 | Axial magnetic suspension bearing, motor, compressor and air conditioner |
| CN110671392A (en) * | 2019-09-30 | 2020-01-10 | 福建龙马环卫装备股份有限公司 | Hydraulic system with integral box hopper with manual emergency lifting function |
| CN115574022A (en) * | 2022-12-07 | 2023-01-06 | 中国能源建设集团山西省电力勘测设计院有限公司 | Mechanical brake device of vertical axis wind generating set |
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2013
- 2013-07-16 CN CN2013204238518U patent/CN203335685U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343789A (en) * | 2013-07-16 | 2013-10-09 | 大连华锐重工集团股份有限公司 | Yaw brake of wind power generation device and controlling method thereof |
| CN103343789B (en) * | 2013-07-16 | 2015-08-12 | 大连华锐重工集团股份有限公司 | A kind of off-course brake of wind power plant and controlling method thereof |
| CN103697088A (en) * | 2013-12-26 | 2014-04-02 | 长沙壹实达机械有限公司 | Mechanical yaw brake |
| CN103697088B (en) * | 2013-12-26 | 2016-08-17 | 长沙壹实达机械有限公司 | A kind of mechanical yaw brake |
| CN105221613A (en) * | 2014-06-13 | 2016-01-06 | 申克霍夫曼碳科技股份公司 | For the driftage braking device of wind energy plant |
| CN105221613B (en) * | 2014-06-13 | 2018-04-20 | 申克霍夫曼碳科技股份公司 | Yaw brake device for wind energy plant |
| CN104500619A (en) * | 2014-12-17 | 2015-04-08 | 江西华伍制动器股份有限公司 | Wind power active type hydraulic yawing disk type brake |
| CN109990017A (en) * | 2019-04-29 | 2019-07-09 | 焦作瑞塞尔盘式制动器有限公司 | Yawing brake of aerogenerator and wind-driven generator |
| CN110094419A (en) * | 2019-05-20 | 2019-08-06 | 珠海格力电器股份有限公司 | Axial magnetic suspension bearing, motor, compressor and air conditioner |
| CN110671392A (en) * | 2019-09-30 | 2020-01-10 | 福建龙马环卫装备股份有限公司 | Hydraulic system with integral box hopper with manual emergency lifting function |
| CN115574022A (en) * | 2022-12-07 | 2023-01-06 | 中国能源建设集团山西省电力勘测设计院有限公司 | Mechanical brake device of vertical axis wind generating set |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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