CN102865320A - Electromagnetic power loss brake for wind power - Google Patents
Electromagnetic power loss brake for wind power Download PDFInfo
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- CN102865320A CN102865320A CN2012103812488A CN201210381248A CN102865320A CN 102865320 A CN102865320 A CN 102865320A CN 2012103812488 A CN2012103812488 A CN 2012103812488A CN 201210381248 A CN201210381248 A CN 201210381248A CN 102865320 A CN102865320 A CN 102865320A
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Abstract
The invention relates to an electromagnetic power loss brake for wind power. The brake structurally comprises two tabular sizing blocks and electromagnetic brakes. The two tabular sizing blocks are used for being fixed at the same position of the upper surface and the lower surface of a wind-power fixing frame plate, and the electromagnetic brakes co-act on a wind-power brake disc on the upper surface and the lower surface of the wind-power brake disc. Each electromagnetic brake comprises an electromagnet, a brake spring in penetration connection into a shell of the electromagnet and a friction plate arranged on an armature of the electromagnet. Connecting plates laterally extending outward are made on the shells of the electromagnets and are arranged on the sizing blocks, and gap adjusting and fixing mechanisms are arranged between the connecting plates and the sizing blocks. Adjustment of brake gaps of the upper electromagnetic brake and the lower electromagnetic brake is simple and convenient and does not mutually influence, change and adjustment of deflection angles of brake surfaces are achieved, and accordingly the huge problem of adjustment of an upper brake gap and a lower brake gap of the existing hydraulic wind-power brake is solved.
Description
Technical field
The present invention relates to the break that uses on a kind of wind power plant, specifically a kind of wind-powered electricity generation electromagnetism electricity-loss braking device.
Background technique
Wind power brake is an important component part on the wind power generating set.Existing wind power brake all is hydraulic brake, is symmetricly set on the upper and lower faces of wind-powered electricity generation brake disc, and is fixed on together up and down the wind-powered electricity generation fixedly on the frame plate that is positioned at wind-powered electricity generation brake disc periphery by some groups of logical bolts.There are two subject matters in this hydraulic type wind power brake, and the one, the brake clearance adjustment is very inconvenient, and the 2nd, Leakage is very outstanding.
The main cause of brake clearance adjustment inconvenience is because the hydraulic brake that is arranged on the upper and lower faces of wind-powered electricity generation brake disc is together to be fixed on wind-powered electricity generation fixedly on the frame plate, therefore, the friction plate on two breaks can only keep with wind-powered electricity generation fixedly the plate face of frame plate parallel; And the wind-powered electricity generation brake disc is owing to being arranged on the rotating spindle of wind power generating set, and card is larger, generally can not reach under normal conditions and the fixing completely parallel accurate installation position of plate face of frame plate of wind-powered electricity generation, it is very general that the alice in allowed band is installed phenomenon; And hydraulic brake be owing to can't carry out corresponding gap deflection adjustment or carrying out deflection installing, thereby also just can't adapt to the wind-powered electricity generation brake disc of this alice installation.In addition, because two hydraulic brakes are that one is installed in the fixedly upper and lower faces of frame plate of wind-powered electricity generation up and down, the adjustment of the brake clearance of upper and lower break just must interact and adjust inconvenience, and namely up and down two hydraulic brakes can not be realized independent brake clearance adjustment.So the gap of existing wind power brake is adjusted, not only operation is very inconvenient, and can't realize the angular deflection adjustment corresponding with brake disc, also can't realize separately independently gap adjustment.This has been the hard nut to crack that the wind-powered electricity generation brake field exists.
Leakage be the hydraulic type wind power brake exist another have the problem of generality.This is that therefore Seepage will occur the high pressure oil in the oil hydraulic cylinder because brake disc in the moment of vertical depression on the brake disc card of High Rotation Speed, under the drive of turning effort power, can cause the deflection of brake piston in wind-powered electricity generation brake disc level; In case and hydraulic oil leaks on the card of wind-powered electricity generation brake disc, so, the braking action of this break has also just been had a greatly reduced quality; And the gathering of this leakage of oil, the spark that is produced when also easily being braked at a high speed ignites, thereby causes the serious accident of burning main frame etc.
Summary of the invention
Purpose of the present invention just provides a kind of wind-powered electricity generation electromagnetism electricity-loss braking device, adjusts the problem of inconvenience and general leakage of oil to overcome brake clearance that the hydraulic type wind power brake exists.
The present invention is achieved in that a kind of wind-powered electricity generation electromagnetism electricity-loss braking device, include: be used for being fixed on the fixedly two boards shape parallels of frame plate same position place upper and lower faces of wind-powered electricity generation, and be separately fixed on two blocks of described parallels and in the upper and lower faces acting in conjunction of wind-powered electricity generation brake disc in the electromagnetic brake of wind-powered electricity generation brake disc;
Described electromagnetic brake includes: by the electromagnet that housing, electromagnetic coil and armature form, cross-under is in described housing and promote the brake spring that described armature is braked, and is arranged on the friction plate on the described armature;
Be shaped with the connecting plate of epitaxial lateral overgrowth at described housing, described connecting plate is arranged on the described parallels, is provided with gap adjustment and fixed mechanism between described connecting plate and described parallels.
Described gap adjustment among the present invention and fixed mechanism comprise that four components are distributed in gap adjustment bolt and the standby tight bolt of four jiaos of described connecting plates; Described gap adjustment bolt passes the unthreaded hole on the described connecting plate, is threaded in the screw on the described parallels; Described standby tight bolt thread is connected in the tapped through hole on the described connecting plate, and its spiro rod length is greater than the thickness of described connecting plate.
Be provided with gland at described brake spring, described gland is fixed on the described housing, is provided with spring pressure at described gland and adjusts screw rod.
Described gland is to be socketed in described brake spring epimere and with the cylinder cap on fixing edge, or is crimped on the plane dome of described brake spring end face.
The present invention brakes the wind-powered electricity generation brake disc of wind power generating set by symmetrically arranged two electromagnetic brakes about adopting, at first, the use of this electromagnetic brake, save the configuration of conventional hydraulic control mechanism and hydraulic station, naturally also just eliminated Leakage and consequent potential safety hazard; Secondly, two electromagnetic brakes are to be installed in the fixedly upper and lower faces of frame plate of wind-powered electricity generation under the cooperation of two boards shape parallels, the advantage of this mounting structure, the one, upper and lower two electromagnetic brakes are independently to be fixed on separately on parallels or the lower padding iron, thereby when carrying out the adjustment of brake clearance, just can independently carry out separately respectively, be independent of each other, do not interfere with each other; The 2nd, clearance adjustment mechanism and fixed mechanism coordinated, a kind of brand-new gap adjustment and fixed mechanism have been formed, the adjustment of this gap and fixed mechanism not only can carry out the adjustment of gap length, can also carry out the adjustment of brake clearance deviation angle, thereby the braking surface of electromagnetic brake can be adjusted to the position that parallels with the card of wind-powered electricity generation brake disc, satisfy thus the braking needs that the wind-powered electricity generation of small alice brake disc is arranged; Again; two electromagnetic brakes all are combinations of adopting brake spring and electromagnet; can dwindle machine volume like this; reduce the complete machine height, reduce space hold, and; electromagnetic brake adopts the dead electricity braking mode; do not have power down to lose the misgivings of lock, can guarantee safety in production and the emergency braking of wind power generating set, the protection power generating equipment is without prejudice.
The present invention can make the adjustment of brake clearance of upper and lower two electromagnetic brakes both simple and convenient, be independent of each other again, variation and the adjustment of braking surface deflection angle also can be arranged, overcome thus the hard nut to crack that upper and lower two brake clearances of existing hydraulic type wind power brake are adjusted inconvenience.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the plan view of electromagnetism electricity-loss braking device shown in Figure 1.
Among the figure: 1, wind-powered electricity generation brake disc, 3, friction plate, 4, armature, 5, housing, 6, electromagnetic coil, 7, guide rod, 8, brake spring, 10, standby tight bolt, 11, the gap adjusts bolt, 12, construction bolt is secondary, and 13, parallels, 14, spring pressure adjusts screw rod, 15, the fixing frame plate of wind-powered electricity generation, 16, connecting plate, 17, gland, 18, pad.
Embodiment
As shown in Figure 1, wind-powered electricity generation brake disc 1 is installed on the main shaft of wind power generator group, be provided with fixedly frame plate 15 of wind-powered electricity generation in the outer periphery of brake disc 1, wind-powered electricity generation fixedly the upper and lower faces of frame plate 15 be symmetrically arranged with 13, two parallels 13 of tabular parallels and together be fixed on wind-powered electricity generation by the construction bolt pair 12 that connects fixedly on the frame plate 15.On upper and lower two blocks of parallels 13, fix respectively an electromagnetic brake, two electromagnetic brakes from the upper and lower faces acting in conjunction of wind-powered electricity generation brake disc 1 on the wind-powered electricity generation brake disc.
Two electromagnetic brakes include respectively electromagnet, brake spring 8 and friction plate 3.Electromagnet is comprised of housing 5, electromagnetic coil 6 and armature 4, is provided with the guide rod 7 that armature is carried out motion guide between armature 4 and housing 5.Friction plate 3 is installed on the braking surface of armature 4, and and the card of wind-powered electricity generation brake disc 1 between keep the brake clearance that allows.Brake spring 8 has two, and cross-under is used for promoting armature 4 and carries out the dead electricity braking in the housing 5 of electromagnet side by side.Be provided with gland 17 at each brake spring 8, described gland 17 can be to be socketed in brake spring 6 epimeres and to enclose the fixedly cylinder cap structure on edge in the bottom with one, by fixedly edge and screw are fixed on the housing 5 of electromagnet.Gland 17 also can be the plane dome that is crimped on brake spring 8 end faces, directly is fixed on by screw on the housing 5 of electromagnet.Be provided with spring pressure at gland 17 and adjust screw rod 14, in order to the size of adjustable brake moment.Between spring pressure adjustment screw rod 14 and brake spring 8, pad 18 can be set, adjust pressing of 14 pairs of brake springs 8 of screw rod to make things convenient for spring pressure.
As shown in Figure 1 and Figure 2, be shaped with the connecting plate 16 of epitaxial lateral overgrowth at the housing 5 of electromagnet, connecting plate 16 is installed on the parallels 13, is provided with gap adjustment and fixed mechanism between connecting plate 16 and parallels 13.
The adjustment of described gap and fixed mechanism have four groups of fixation fastener, are divided into four jiaos of the end faces of connecting plate 16.Every group of fixation fastener comprises a gap adjustment bolt 11 and a standby tight bolt 10.Gap adjustment bolt 11 passes the unthreaded hole on the connecting plate 16, is threaded in the screw on the parallels 13; Standby tight bolt 10 is threaded in the tapped through hole on the connecting plate 16, and holds out against the surface at parallels 13.For standby tight bolt 10 can be held out against on the surface of parallels 13, so the spiro rod length of standby tight bolt 10 is greater than the thickness of connecting plate 16.In addition, on standby tight bolt 10, a tightening nut is set preferably, to guarantee the reliable standby tight of standby tight bolt 10.
The present invention can also adopt other several more common and conventional clearance adjustment mechanisms that adopt on the existing electromagnetic brake, but these clearance adjustment mechanisms and adjustment mode thereof, compare structure and the adjustment mode of the adjustment of above-mentioned gap and fixed mechanism, structure member increases to some extent, and adjusts to some extent inconvenience.Gap of the present invention is adjusted and the structure of fixed mechanism is simple, function is many, and adjustment is the most convenient.
Working principle of the present invention is: when needs are braked, disconnect the working power of electromagnetism electricity-loss braking device of the present invention by controller, two electromagnetic brake dead electricity, the suction of electromagnetic coil 6 disappears, brake spring 8 promotes armature 4 and friction plate 3 presses to wind-powered electricity generation brake disc 1, realizes the brake brake application.When needs declutch, serve working power by controller to electromagnetism electricity-loss braking device of the present invention, it is electric that two electromagnetic brakes get, and the electromagnetic force that electromagnetic coil 6 produces is adsorbed onto armature 4 on the housing 5, friction plate 3 separates with wind-powered electricity generation brake disc 1, realizes declutching operation.
Installation of the present invention and brake clearance adjustment process are: at first, two blocks of parallels, 13 usefulness construction bolt pairs 12 are separately fixed at the fixedly upper and lower faces of frame plate 15 of wind-powered electricity generation, then, connecting plate 16 on the electromagnetic brake is set on one of them parallels 13, again four gaps are adjusted bolts 11 and passed respectively unthreaded hole on 16 4 jiaos of the connecting plates, be screwed onto in the screw corresponding with unthreaded hole on the parallels 13; Four gaps are adjusted the precession degree of depth of bolt 11 in parallels 13 and should be consistent.After this, again four standby tight bolts 10 are screwed onto in the screw that is respectively adjacent to four unthreaded holes on 16 4 jiaos of the connecting plates.Because the spiro rod length of standby tight bolt 10 is greater than the thickness of connecting plate 16, therefore, the surface that parallels 13 can be pushed up in the lower end of standby tight bolt 10, thus with connecting plate 16 tensions, realize being fixedly connected with of connecting plate (being electromagnetic brake).Adjust four gaps and adjust the precession degree of depth of bolts 11 in parallels 13, i.e. the last fastening height of the housing 5 in the capable of regulating electromagnetic brake and armature 4, thus realize that the friction plate 3 of armature 4 bottoms is apart from the adjustment of the brake clearance between the wind-powered electricity generation brake disc surface.If wind-powered electricity generation brake disc 1 has certain mounting inclination angle degree (namely having certain alice phenomenon), then by changing in the outer part or adjusting the precession degree of depth of bolt 11 in parallels 13 by two gaps of the inside, can with four standby tight bolt 10 standby tight after, make the two ends of the friction plate 3 of armature 4 bottoms produce certain height tolerance, when the deflection angle that forms when this height tolerance is basically identical with the alice angle of wind-powered electricity generation brake disc 1, namely reached the purpose with the deflection adjustment of the essentially identical brake clearance of wind-powered electricity generation brake disc.At last, in a manner described wind-powered electricity generation fixedly the another side of frame plate fix another electromagnetic brake, and the corresponding brake clearance of adjusting can be finished integral installation and the gap adjustment of electromagnetism electricity-loss braking device of the present invention.
The adjustment mode of the size of above-mentioned this brake clearance and angular deflection, easy to operate, simple, thoroughly solved the hard nut to crack that existing wind power brake brake clearance is adjusted inconvenience and can not deflection be adjusted.
Claims (4)
1. wind-powered electricity generation electromagnetism electricity-loss braking device, it is characterized in that, include: be used for being fixed on the fixedly two boards shape parallels of frame plate same position place upper and lower faces of wind-powered electricity generation, and be separately fixed on two blocks of described parallels and in the upper and lower faces acting in conjunction of wind-powered electricity generation brake disc in the electromagnetic brake of wind-powered electricity generation brake disc;
Described electromagnetic brake includes: by the electromagnet that housing, electromagnetic coil and armature form, cross-under is in described housing and promote the brake spring that described armature is braked, and is arranged on the friction plate on the described armature;
Be shaped with the connecting plate of epitaxial lateral overgrowth at described housing, described connecting plate is arranged on the described parallels, is provided with gap adjustment and fixed mechanism between described connecting plate and described parallels.
2. wind-powered electricity generation according to claim 1 electromagnetism electricity-loss braking device is characterized in that, the adjustment of described gap and fixed mechanism comprise that four components are distributed in gap adjustment bolt and the standby tight bolt of four jiaos of described connecting plates; Described gap adjustment bolt passes the unthreaded hole on the described connecting plate, is threaded in the screw on the described parallels; Described standby tight bolt thread is connected in the tapped through hole on the described connecting plate, and its spiro rod length is greater than the thickness of described connecting plate.
3. wind-powered electricity generation according to claim 1 and 2 electromagnetism electricity-loss braking device is characterized in that, is provided with gland at described brake spring, and described gland is fixed on the described housing, is provided with spring pressure at described gland and adjusts screw rod.
4. wind-powered electricity generation according to claim 3 electromagnetism electricity-loss braking device is characterized in that, described gland is to be socketed in described brake spring epimere and with the cylinder cap on fixing edge, or is crimped on the plane dome of described brake spring end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381248.8A CN102865320B (en) | 2012-10-10 | 2012-10-10 | Electromagnetic power loss brake for wind power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381248.8A CN102865320B (en) | 2012-10-10 | 2012-10-10 | Electromagnetic power loss brake for wind power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102865320A true CN102865320A (en) | 2013-01-09 |
| CN102865320B CN102865320B (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210381248.8A Active CN102865320B (en) | 2012-10-10 | 2012-10-10 | Electromagnetic power loss brake for wind power |
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| Country | Link |
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| CN (1) | CN102865320B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719409A (en) * | 2021-08-27 | 2021-11-30 | 嘉兴南洋职业技术学院 | Fan blade rotating shaft braking system of wind generating set |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285420A (en) * | 1979-07-23 | 1981-08-25 | Facet Enterprises, Inc. | Air gap adjuster for electric clutches |
| US5057728A (en) * | 1990-11-29 | 1991-10-15 | Crown Equipment Corporation | Three step electric brake |
| CN2249330Y (en) * | 1996-06-07 | 1997-03-12 | 锡山市电器仪表二厂 | Electromagnetic clutching brake |
| CN201437830U (en) * | 2009-08-07 | 2010-04-14 | 上海浦东新区张江电机有限公司 | Automatic spacing tracking electromagnetic brake |
| CN102287332A (en) * | 2011-07-28 | 2011-12-21 | 北京文创优利可新能源科技有限公司 | Unidirectional braking device for wind turbine pitch system |
| CN202251558U (en) * | 2011-10-10 | 2012-05-30 | 浙江劲野科技有限公司 | Automatic safety braking device for wind driven generator |
| CN202926925U (en) * | 2012-10-10 | 2013-05-08 | 石家庄五龙制动器股份有限公司 | Electromagnetic power-losing brake device for wind power |
-
2012
- 2012-10-10 CN CN201210381248.8A patent/CN102865320B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285420A (en) * | 1979-07-23 | 1981-08-25 | Facet Enterprises, Inc. | Air gap adjuster for electric clutches |
| US5057728A (en) * | 1990-11-29 | 1991-10-15 | Crown Equipment Corporation | Three step electric brake |
| CN2249330Y (en) * | 1996-06-07 | 1997-03-12 | 锡山市电器仪表二厂 | Electromagnetic clutching brake |
| CN201437830U (en) * | 2009-08-07 | 2010-04-14 | 上海浦东新区张江电机有限公司 | Automatic spacing tracking electromagnetic brake |
| CN102287332A (en) * | 2011-07-28 | 2011-12-21 | 北京文创优利可新能源科技有限公司 | Unidirectional braking device for wind turbine pitch system |
| CN202251558U (en) * | 2011-10-10 | 2012-05-30 | 浙江劲野科技有限公司 | Automatic safety braking device for wind driven generator |
| CN202926925U (en) * | 2012-10-10 | 2013-05-08 | 石家庄五龙制动器股份有限公司 | Electromagnetic power-losing brake device for wind power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719409A (en) * | 2021-08-27 | 2021-11-30 | 嘉兴南洋职业技术学院 | Fan blade rotating shaft braking system of wind generating set |
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| Publication number | Publication date |
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| CN102865320B (en) | 2015-06-24 |
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