CN102865320B - Electromagnetic power loss brake for wind power - Google Patents
Electromagnetic power loss brake for wind power Download PDFInfo
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- CN102865320B CN102865320B CN201210381248.8A CN201210381248A CN102865320B CN 102865320 B CN102865320 B CN 102865320B CN 201210381248 A CN201210381248 A CN 201210381248A CN 102865320 B CN102865320 B CN 102865320B
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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 a kind of wind power plant uses, specifically a kind of wind-powered electricity generation electromagnetism electricity-loss braking device.
Background technique
Wind power brake is an important component part in wind power generating set.Existing wind power brake is all hydraulic brake, is symmetricly set on the upper and lower faces of wind-powered electricity generation brake disc, and leads to bolt by some groups and be fixed on the wind-powered electricity generation being positioned at wind-powered electricity generation brake disc periphery up and down together and fix on frame plate.There are two subject matters in this hydraulic type wind power brake, one is that brake clearance adjustment is very inconvenient, and two is that Leakage is very outstanding.
The main cause of brake clearance adjustment inconvenience is the hydraulic brake of the upper and lower faces owing to being arranged on wind-powered electricity generation brake disc is together be fixed on wind-powered electricity generation to fix on frame plate, therefore, the friction plate on two breaks can only keep the plate face fixing frame plate with wind-powered electricity generation to parallel; And wind-powered electricity generation brake disc is owing to being be arranged on the rotating spindle of wind power generating set, and card is larger, generally can not reach completely parallel accurate installation position, the plate face fixing frame plate with wind-powered electricity generation under normal conditions, the alice installation phenomenon in allowed band is very general; And hydraulic brake is installed owing to cannot carrying out corresponding gap deflection adjustment or carrying out deflection, the wind-powered electricity generation brake disc that this alice is installed thus also just cannot be adapted to.In addition, because upper and lower two hydraulic brakes are integrally arranged on the upper and lower faces that wind-powered electricity generation fixes frame plate, the adjustment of the brake clearance of upper and lower break just necessarily to interact and adjust inconvenience, and two namely upper and lower hydraulic brakes can not realize the adjustment of independent brake clearance.So the gap adjustment of existing wind power brake, it is very inconvenient not only to operate, and cannot realize the angular deflection adjustment corresponding with brake disc, also cannot realize separately independently gap adjustment.This has been the hard nut to crack that wind-powered electricity generation brake field exists.
Leakage be hydraulic type wind power brake exist another there is the problem of generality.This is that in wind-powered electricity generation brake disc level under the drive of rotating force, can cause the deflection of brake piston, therefore the high pressure oil in oil hydraulic cylinder Seepage will occur due to the moment of brake disc in the brake disc card of vertical depression to High Rotation Speed; And once hydraulic oil leaks in 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, this leakage oil pudding, when also easily being braked at a high speed the spark that produces ignite, thus cause the serious accident of burning main frame etc.
Summary of the invention
Object of the present invention is just to provide a kind of wind-powered electricity generation electromagnetism electricity-loss braking device, and the brake clearance existed to overcome hydraulic type wind power brake adjusts the problem of inconvenience and general leakage of oil.
The present invention is achieved in that a kind of wind-powered electricity generation electromagnetism electricity-loss braking device, include: the two boards shape parallels fixing frame plate same position place upper and lower faces for being fixed on wind-powered electricity generation, and to 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: the electromagnet be made up of housing, electromagnetic coil and armature, and cross-under is in described housing and promote the brake spring that described armature carries out braking, and is arranged on the friction plate on described armature;
Be shaped with the connecting plate of epitaxial lateral overgrowth on the housing, described connecting plate is arranged on described parallels, is provided with gap and adjusts and fixed mechanism between described connecting plate and described parallels.
Described gap adjustment in the present invention and fixed mechanism comprise Four composition and are distributed in the gap adjustment bolt of described connecting plate corner and standby tight bolt; Described gap adjustment bolt, through the unthreaded hole on described connecting plate, is threaded in the screw on described parallels; Described standby tight bolt thread is connected in the tapped through hole on described connecting plate, and its spiro rod length is greater than the thickness of described connecting plate.
Described brake spring is provided with gland, and described gland is fixing on the housing, and described gland is provided with spring pressure adjustment screw rod.
Described gland is 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 by adopting the wind-powered electricity generation brake disc of symmetrically arranged two electromagnetic brakes to wind power generating set up and down, first, the use of this electromagnetic brake, eliminate the configuration of conventional hydraulic control mechanism and hydraulic station, naturally also just eliminate Leakage and consequent potential safety hazard; Secondly, two electromagnetic brakes are under the cooperation of two boards shape parallels, be arranged on the upper and lower faces that wind-powered electricity generation fixes frame plate, the advantage of this mounting structure, one is upper and lower two electromagnetic brakes is independently be fixed on parallels or lower padding iron separately, thus just can independently carry out separately respectively when carrying out the adjustment of brake clearance, be independent of each other, do not interfere with each other; Two is clearance adjustment mechanism and fixed mechanism coordinated, define the adjustment of a kind of brand-new gap and fixed mechanism, the adjustment of this gap and fixed mechanism not only can carry out the adjustment of gap length, the adjustment of brake clearance deviation angle can also be carried out, thus the braking surface of electromagnetic brake can be adjusted to the position paralleled with the card of wind-powered electricity generation brake disc, meet the braking needs of the wind-powered electricity generation brake disc of small alice thus; Again; two electromagnetic brakes are all the combinations adopting brake spring and electromagnet; machine volume can be reduced like this; reduce complete machine height, reduce space hold, and; electromagnetic brake adopts 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, protection power generating equipment is without prejudice.
The present invention can make the adjustment of the brake clearance of upper and lower two electromagnetic brakes both simple and convenient, be independent of each other again, also can there be change and the adjustment of braking surface deflection angle, overcome the hard nut to crack of existing hydraulic type wind power brake upper and lower two brake clearances adjustment inconvenience thus.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the plan view of the electricity-loss braking device of electromagnetism shown in Fig. 1.
In 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, gap adjustment bolt, 12, construction bolt is secondary, and 13, parallels, 14, spring pressure adjustment screw rod, 15, wind-powered electricity generation fixes frame plate, 16, connecting plate, 17, gland, 18, pad.
Embodiment
As shown in Figure 1, wind-powered electricity generation brake disc 1 is arranged on the main shaft of wind power generator group, the outer periphery of brake disc 1 is provided with wind-powered electricity generation and fixes frame plate 15, parallels 13, two parallels 13 that the upper and lower faces fixing frame plate 15 at wind-powered electricity generation is symmetrically arranged with tabular are together fixed on wind-powered electricity generation by through construction bolt pair 12 and fix on frame plate 15.An electromagnetic brake fixed respectively by upper and lower two blocks of parallels 13, two electromagnetic brakes from the upper and lower faces acting in conjunction of wind-powered electricity generation brake disc 1 in wind-powered electricity generation brake disc.
Two electromagnetic brakes include electromagnet, brake spring 8 and friction plate 3 respectively.Electromagnet is made up of housing 5, electromagnetic coil 6 and armature 4, is provided with the guide rod 7 armature being carried out to motion guide between armature 4 and housing 5.Friction plate 3 is arranged on the braking surface of armature 4, and and keeps the brake clearance that allows between the card of wind-powered electricity generation brake disc 1.Brake spring 8 has two, and cross-under arranged side by side, in the housing 5 of electromagnet, carries out dead electricity braking for promoting armature 4.Each brake spring 8 is provided with gland 17, and described gland 17 can be socketed in brake spring 6 epimere and in bottom with the cylinder cap structure on a fixing edge of circle, be fixed on the housing 5 of electromagnet by fixing edge and screw.Gland 17 also can be the plane dome being crimped on brake spring 8 end face, is directly fixed on the housing 5 of electromagnet by screw.Gland 17 is provided with spring pressure adjustment screw rod 14, in order to the size of adjustable brake moment.Pad 18 can be set between spring pressure adjustment screw rod 14 and brake spring 8, with the pressing facilitating spring pressure to adjust screw rod 14 pairs of brake springs 8.
As shown in Figure 1 and Figure 2, the housing 5 of electromagnet is shaped with the connecting plate 16 of epitaxial lateral overgrowth, connecting plate 16 is arranged on parallels 13, is provided with gap and adjusts 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 the end face corner of connecting plate 16.Often organize fixation fastener and comprise a gap adjustment bolt 11 and a standby tight bolt 10.Adjustment bolt 11 in gap, through the unthreaded hole on connecting plate 16, is threaded in the screw on parallels 13; Standby tight bolt 10 is threaded in the tapped through hole on connecting plate 16, and holds out against on the surface of parallels 13.For making standby tight bolt 10 can hold 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, standby tight bolt 10 preferably arranges a tightening nut, to ensure 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 existing electromagnetic brake adopts, 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 adjustment inconvenience to some extent.The structure of gap of the present invention adjustment and fixed mechanism is simple, function is many, and adjustment is the most convenient.
Working principle of the present invention is: when needs are braked, disconnected 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 brake brake application.When needs declutch, serve working power by controller to electromagnetism electricity-loss braking device of the present invention, two electromagnetic brakes obtain electric, and armature 4 is adsorbed onto on housing 5 by the electromagnetic force that electromagnetic coil 6 produces, friction plate 3 is separated with wind-powered electricity generation brake disc 1, realizes declutching operation.
Installation of the present invention and brake clearance adjustment process are: first, two blocks of parallels 13 construction bolt pair 12 is separately fixed at the upper and lower faces that wind-powered electricity generation fixes frame plate 15, then, connecting plate 16 on an electromagnetic brake is set on one of them parallels 13, again four gap adjustment bolts 11 are each passed through the unthreaded hole on connecting plate 16 4 jiaos, are screwed onto in screw corresponding with unthreaded hole on parallels 13; Four the gap precession degree of depth of adjustment bolt 11 in parallels 13 should be consistent.After this, then by four standby tight bolts 10 be screwed onto in the screw that connecting plate 16 4 jiaos is respectively adjacent to four unthreaded holes.Spiro rod length due to standby tight bolt 10 is greater than the thickness of connecting plate 16, and therefore, the surface of parallels 13 can be pushed up in the lower end of standby tight bolt 10, thus is strained by connecting plate 16, realizes being fixedly connected with of connecting plate (i.e. electromagnetic brake).Adjust the precession degree of depth of four gap adjustment bolts 11 in parallels 13, the housing 5 namely in adjustable electromagnetic brake and the last fastening height of armature 4, thus the adjustment of friction plate 3 apart from the brake clearance between wind-powered electricity generation brake disc surface realizing armature 4 bottom.If wind-powered electricity generation brake disc 1 has certain mounting inclination angle degree (namely there is certain alice phenomenon), then by changing in the outer part or lean on the precession degree of depth of two gaps adjustment bolts 11 in parallels 13 of the inside, can tight bolts 10 standby by four standby tight after, the two ends of the friction plate 3 of armature 4 bottom are made to produce certain height tolerance, when the alice angle of the deflection angle that this height tolerance is formed and wind-powered electricity generation brake disc 1 is basically identical, the object that the deflection namely reaching the brake clearance substantially identical with wind-powered electricity generation brake disc adjusts.Finally, the another side fixing frame plate at wind-powered electricity generation in a manner described fixes another electromagnetic brake, and correspondingly adjusts brake clearance, can complete integral installation and the gap adjustment of electromagnetism electricity-loss braking device of the present invention.
The size of above-mentioned this brake clearance and the adjustment mode of angular deflection, easy to operate, simple, thoroughly solve existing wind power brake brake clearance adjustment inconvenience and the hard nut to crack that can not deflect adjustment.
Claims (3)
1. a wind-powered electricity generation electromagnetism electricity-loss braking device, it is characterized in that, include: the two boards shape parallels fixing frame plate same position place upper and lower faces for being fixed on wind-powered electricity generation, and to 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: the electromagnet be made up of housing, electromagnetic coil and armature, and cross-under is in described housing and promote the brake spring that described armature carries out braking, and is arranged on the friction plate on described armature;
Be shaped with the connecting plate of epitaxial lateral overgrowth on the housing, described connecting plate is arranged on described parallels, is provided with gap and adjusts and fixed mechanism between described connecting plate and described parallels;
The adjustment of described gap and fixed mechanism include four groups of fixation fastener, are divided into the end face corner of described connecting plate; Often organize described fixation fastener and comprise a gap adjustment bolt and a standby tight bolt; Described gap adjustment bolt, through the unthreaded hole on described connecting plate, is threaded in the screw on described parallels; Described standby tight bolt thread is connected in the tapped through hole on described connecting plate, and holds out against on the surface of described parallels; The spiro rod length of described standby tight bolt is greater than the thickness of described connecting plate.
2. wind-powered electricity generation electromagnetism electricity-loss braking device according to claim 1, is characterized in that, described brake spring is provided with gland, and described gland is fixing on the housing, and described gland is provided with spring pressure adjustment screw rod.
3. wind-powered electricity generation electromagnetism electricity-loss braking device according to claim 2, is characterized in that, described gland is 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 CN102865320A (en) | 2013-01-09 |
| CN102865320B true CN102865320B (en) | 2015-06-24 |
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| 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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| CN (1) | CN102865320B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719409B (en) * | 2021-08-27 | 2023-05-02 | 嘉兴南洋职业技术学院 | Wind generating set fan blade pivot braking system |
Citations (6)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2012
- 2012-10-10 CN CN201210381248.8A patent/CN102865320B/en active Active
Patent Citations (6)
| 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 |
| 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 |
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| CN102865320A (en) | 2013-01-09 |
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