CN201250754Y - Centrifugal ball type braking device for a vertical shaft type windmill - Google Patents
Centrifugal ball type braking device for a vertical shaft type windmill Download PDFInfo
- Publication number
- CN201250754Y CN201250754Y CNU2008201227027U CN200820122702U CN201250754Y CN 201250754 Y CN201250754 Y CN 201250754Y CN U2008201227027 U CNU2008201227027 U CN U2008201227027U CN 200820122702 U CN200820122702 U CN 200820122702U CN 201250754 Y CN201250754 Y CN 201250754Y
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- Prior art keywords
- brake disc
- connecting rod
- leg
- axle sleeve
- braking
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The utility model relates to a centrifugal ball type braking device for a vertical shaft type windmill, belonging to the technical field of wind power generation. The device comprises a hollow inside shaft, a shaft sleeve, an upper brake disc, a connecting rod, a lower brake disc, a centrifugal ball rolling groove, a centrifugal ball and a hand brake; the hand brake comprises a transmission connecting rod, a connecting rod location support, a reset spring, a positive stop ring and a brake handle. When a wind speed exceeds a rated wind speed, the centrifugal force is increased, the centrifugal ball rolls outwards to push support feet of the lower brake disc, thereby the lower brake disc is pushed upwards, the lower brake disc is contacted with the upper brake disc, and the braking starts. Because of the braking, the rotational speed is lowered, the centrifugal force is reduced, the centrifugal ball rolls inwards, the support feet of the lower brake disc fall back downwards, the lower brake disc descends and the braking is cancelled to form the process of braking-reduction-acceleration-braking, and the rotational speed of a generator is lowered to the rated rotational speed, thereby the generator can normally work, and the efficiency is enhanced. The utility model also combines manual braking and automatic braking together, has simple structure, is convenient to operate, and saves the cost.
Description
Technical field
The utility model belongs to technical field of wind power generation, particularly vertical axis windmill brake device structure design.
Background technique
Wind-driven generator has two kinds of vertical shaft type wind-driven generator and horizontal axial type wind-driven generators; Now generally adopt in the world the horizontal axial type wind-driven generator; Because can changing the blade angle that facings the wind by Electronic Control, the horizontal axial type generating equipment adjusts moment and rotating speed; The power output that it is kept relative stability; And the vertical shaft type wind power plant can not change the blade angle that facings the wind when wind speed changes; Also just can not adjust moment and rotating speed; The power output that can not keep relative stability; This also is one of main difference of vertical shaft type and horizontal axial type wind-driven generator
Vertical shaft type wind-driven generator for example, its rated power is 1000W, and rated wind speed is 5-8M/S, and rotating speed is 2 commentaries on classics/S, and moment is 500NM.When wind speed surpasses 8M/S, its moment and rotating speed all can increase, at this moment its output power will cause burning generator greater than 1000W, the way that solves parkings of shutting down exactly at present, during like this when the wind speed deficiency or above rated wind speed, generator just can not normally use, not only wasted resource, and the utilization ratio of wind-driven generator is also low, so, be unfavorable for extensive use although this vertical shaft type wind-driven generator is simple in structure.
Summary of the invention
The purpose of this utility model is for overcoming the deficiency of prior art, a kind of vertical shaft type wind-driven generator is provided, on windmill, increase centrifugal globe formula braking device, when wind speed surpasses rated wind speed, centrifugal globe formula braking device will produce enough centrifugal force, promotes the break action, and the rotating speed of generator is reduced to rated speed, makes it can proper functioning, lengthen working hours, thereby make full use of wind resource, make the wind-driven generator utilization rate increase, raise the efficiency.
For achieving the above object, the centrifugal ball type braking device for vertical shaft type windmill that the utility model proposes is characterized in that, this device comprises hollow inner shaft, axle sleeve, upper brake disc, connecting rod, lower brake disc, centrifugal globe rolling groove, centrifugal globe, hand brake; This axle sleeve is enclosed within outside this hollow inner shaft, is connected for bearing between this axle sleeve and this hollow inner shaft; This longitudinal cross-section that has the upper brake disc of central through hole is flattened rectangular, and brake disc is enclosed within outside this hollow inner shaft on this, and madial wall of brake disc connects by key with this hollow inner shaft outer wall on this; This connecting rod by cross bar and with it the vertical pole that vertically is fixedly connected with of two ends form, this cross bar passes this hollow inner shaft through hole, the lower surface of this vertical pole is fixedly connected with the upper bottom surface that should go up brake disc; This lower brake disc that has a central through hole by the longitudinal cross-section be the dish of flattened rectangular and this dish go to the bottom with at least two legs that distribute symmetrically and evenly form, the lateral cross section of this leg is rectangle, the bottom surface of this leg is the inclined-plane with suitable angle, this time brake disc is enclosed within the end of this axle sleeve, and the inboard of the leg of this time brake disc connects by key with the outer wall of this axle sleeve; The lateral cross section of this centrifugal globe rolling groove is that ∏ shape and open end are fixed on this axle sleeve, and the position of this centrifugal globe rolling groove is corresponding with the leg of this time brake disc, and this leg inserts in this centrifugal globe rolling groove; This centrifugal globe places this centrifugal globe rolling groove and contacts with the inclined-plane of this time brake disc leg; This hand brake places in the hollow inner shaft.
Described hand brake comprises positioning supports, driving connecting rod, Returnning spring, position limit cycle, brake handle up and down; Positioning supports is separately fixed at the upper and lower end parts in this hollow interior axle up and down, the positioning supports center is porose up and down, this driving connecting rod passes this hole at positioning supports center up and down, the upper end of this driving connecting rod is fixed on the connecting rod of brake disc on this, the lower end of this driving connecting rod is fixed with position limit cycle, upward between the connecting rod of brake disc and this upper connecting rod positioning supports Returnning spring is arranged, this Returnning spring is enclosed within outside this driving connecting rod; This brake handle end in the axle in this is hollow is connected with this driving connecting rod rotating component bottom, and the other end is connected with rotating component on this hollow interior axial wall and stretches out outside this hollow interior.
Between the madial wall of described upper brake disc and this hollow inner shaft outer wall, for local key whole circumference or symmetrical connects, between the madial wall of this time brake disc leg and the outer wall of this axle sleeve, for symmetrical local key connects, upward between brake disc and this hollow inner shaft and this time brake disc leg and this axle sleeve, only move up and down, do not relatively rotate.
Characteristic feature of an invention and effect: adopt structure of the present utility model, when wind speed surpasses rated wind speed, centrifugal globe formula braking device will produce enough centrifugal force, promotion break action is reduced to the rotating speed of generator rated speed, makes it can proper functioning, raises the efficiency, the utility model also combines hand brake and Braking mode, simple in structure, be convenient to operation, save cost.
Description of drawings
Fig. 1 is a wind-driven generator centrifugal globe formula braking device example structure schematic representation of the present utility model.
Fig. 2 is the A-A generalized section that goes up brake disc and hollow inner shaft syndeton among Fig. 1.
Fig. 3 is a B-B generalized section of descending brake disc leg and axle sleeve linkage structure among Fig. 1.
Fig. 4 is a C-C generalized section of descending brake disc leg and centrifugal rolling ball linkage structure among Fig. 1.
Embodiment
The centrifugal ball type braking device for vertical shaft type windmill that the utility model proposes reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
Centrifugal ball type braking device for vertical shaft type windmill is characterized in that, this device comprises hollow inner shaft, axle sleeve, upper brake disc, connecting rod, lower brake disc, centrifugal globe rolling groove, centrifugal globe, hand brake; This axle sleeve is enclosed within outside this hollow inner shaft, is connected for bearing between this axle sleeve and this hollow inner shaft; This longitudinal cross-section that has the upper brake disc of central through hole is flattened rectangular, and brake disc is enclosed within outside this hollow inner shaft on this, and madial wall of brake disc connects by key with this hollow inner shaft outer wall on this; This connecting rod by cross bar and with it the vertical pole that vertically is fixedly connected with of two ends form, this cross bar passes this hollow inner shaft through hole, the lower surface of this vertical pole is fixedly connected with the upper bottom surface that should go up brake disc; This lower brake disc that has a central through hole by the longitudinal cross-section be the dish of flattened rectangular and this dish go to the bottom with at least two legs that distribute symmetrically and evenly form, the lateral cross section of this leg is rectangle, the bottom surface of this leg is the inclined-plane with suitable angle, this time brake disc is enclosed within the end of this axle sleeve, and the inboard of the leg of this time brake disc connects by key with the outer wall of this axle sleeve; The lateral cross section of this centrifugal globe rolling groove is that ∏ shape and open end are fixed on this axle sleeve, and the position of this centrifugal globe rolling groove is corresponding with the leg of this time brake disc, and this leg inserts in this centrifugal globe rolling groove; This centrifugal globe places this centrifugal globe rolling groove and contacts with the inclined-plane of this time brake disc leg; This hand brake places in the hollow inner shaft.
Described hand brake can comprise positioning supports, driving connecting rod, Returnning spring, position limit cycle, brake handle up and down; Positioning supports is separately fixed at the upper and lower end parts in this hollow interior axle up and down, the positioning supports center is porose up and down, this driving connecting rod passes this hole at positioning supports center up and down, the upper end of this driving connecting rod is fixed on the connecting rod of brake disc on this, the lower end of this driving connecting rod is fixed with position limit cycle, upward between the connecting rod of brake disc and this upper connecting rod positioning supports Returnning spring is arranged, this Returnning spring is enclosed within outside this driving connecting rod; This brake handle end in the axle in this is hollow is connected with this driving connecting rod rotating component bottom, and the other end is connected with rotating component on this hollow interior axial wall and stretches out outside this hollow interior.
Between the madial wall of described upper brake disc and this hollow inner shaft outer wall, can be whole circumference or symmetrical local key connection, between the madial wall of this time brake disc leg and the outer wall of this axle sleeve, for symmetrical local key connects, upward between brake disc and this hollow inner shaft and this time brake disc leg and this axle sleeve, only move up and down, do not relatively rotate.
The structure of the wind-driven generator centrifugal globe formula brake apparatus of present embodiment as shown in Figure 1, this device comprises hollow inner shaft 1, axle sleeve 2, upper brake disc 3, connecting rod 4, lower brake disc 5, centrifugal globe rolling groove 5, centrifugal globe 6; This axle sleeve 2 is enclosed within outside the hollow inner shaft 1, is connected for bearing between axle sleeve 2 and the hollow inner shaft 1; This longitudinal cross-section that has the upper brake disc 3 of central through hole is flattened rectangular, and brake disc 3 is enclosed within outside this hollow inner shaft 1 on this, and madial wall of brake disc 3 connects by key with the outer wall of this hollow inner shaft 1 on this; This connecting rod 4 by cross bar and with it the vertical pole that vertically is fixedly connected with of two ends form, this cross bar passes this hollow inner shaft 1 through hole, the lower surface of this vertical pole is fixedly connected with the upper bottom surface that should go up brake disc 3; This time brake disc 5 by the longitudinal cross-section be upper base have the flattened rectangular dish of central through hole and this dish go to the bottom with at least two and the leg 51 that distributes symmetrically and evenly form, the lateral cross section of this leg 51 is rectangle, the bottom surface of this leg 51 is the inclined-plane with suitable angle, this time brake disc 5 is enclosed within the end of this axle sleeve 2, and the inboard of the leg 51 of this time brake disc 5 connects by key with the outer wall of this axle sleeve 2; The lateral cross section of this centrifugal globe rolling groove 6 is that ∏ shape and open end are fixed on this axle sleeve 2, and the position of this centrifugal globe rolling groove 6 is corresponding with the leg 51 of this time brake disc 5, and this leg 51 inserts in this centrifugal globe rolling groove 6; This centrifugal globe 7 places this centrifugal globe rolling groove 6, contacts with the inclined-plane of this leg 51.
The syndeton of described upper brake disc 3 and hollow inner shaft 1 as shown in Figure 2, is that symmetrical local key 21 connects between madial wall of brake disc 3 and this hollow inner shaft 1 outer wall on this.The syndeton of described lower brake disc leg 51 and this axle sleeve 2, as shown in Figure 3, between the madial wall of this time brake disc leg 51 and the outer wall of this axle sleeve 2, for symmetrical local key 31 connects.Upward between brake disc 3 and this hollow inner shaft 1 and this time brake disc leg 51 and this axle sleeve 2, only move up and down, do not relatively rotate.
The syndeton of described centrifugal globe 7 and lower brake disc leg 51, as shown in Figure 4, the rolling that centrifugal globe 7 is outside and inside causes the leg 51 of lower brake disc to raise and falling.
The present embodiment branch carries out work by following mode:
When wind speed surpassed rated wind speed, centrifugal force strengthened, and makes centrifugal globe 7 to outer rolling, and brake disc leg 51 under the jack-up will push away on the lower brake disc 5, and lower brake disc 5 contacts with upper brake disc 3, the braking beginning; Because braking, rotating speed descends, and centrifugal force reduces, and centrifugal globe 7 inwardly rolls, and lower brake disc leg 51 falls after rise downwards, and lower brake disc 5 descends, the braking cancellation; Then, faster rotational speed, once again braking is slowed down once again, form the process of " braking-slow down-accelerate-braking ", like this, be higher than at wind speed in the situation of rated wind speed, need not stop, generator also can with stabilization of speed in the rated speed scope, guarantee the normal operation of generator.
The structure of the wind-driven generator centrifugal globe formula hand brake device of present embodiment as shown in Figure 1, this hand brake places in the hollow interior axle 1, and this hand brake comprises positioning supports 81,82, driving connecting rod 83, Returnning spring 84, position limit cycle 85, brake handle 86 up and down; Positioning supports 81,82 is separately fixed at the upper and lower end parts in this hollow interior axle 1 up and down, positioning supports 81,82 centers are porose up and down, this driving connecting rod 83 passes this hole at positioning supports 81,82 centers up and down, the upper end of this driving connecting rod 83 is fixed on the connecting rod 4 of brake disc 3 on this, the lower end of this driving connecting rod 83 is fixed with position limit cycle 85, this position limit cycle 85 withstands on this time positioning supports 82, upward between the connecting rod 4 of brake disc 3 and this upper connecting rod positioning supports 81 Returnning spring 84 is arranged, this Returnning spring 84 is enclosed within outside this driving connecting rod 83; This brake handle 86 axle end in 1 in this is hollow is connected with this driving connecting rod 83 rotating component bottom, and the rotating component on the hole on the other end and this hollow interior 1 axial wall is connected and stretches out outside this hollow interior 1.
Present embodiment carries out work by following mode:
Other structure and the working procedure of present embodiment are identical with embodiment 1.
Claims (3)
1, a kind of centrifugal ball type braking device for vertical shaft type windmill is characterized in that, this device comprises hollow inner shaft, axle sleeve, upper brake disc, connecting rod, lower brake disc, centrifugal globe rolling groove, centrifugal globe, hand brake; This axle sleeve is enclosed within outside this hollow inner shaft, is connected for bearing between this axle sleeve and this hollow inner shaft; This longitudinal cross-section that has the upper brake disc of central through hole is flattened rectangular, and brake disc is enclosed within outside this hollow inner shaft on this, and madial wall of brake disc connects by key with this hollow inner shaft outer wall on this; This connecting rod by cross bar and with it the vertical pole that vertically is fixedly connected with of two ends form, this cross bar passes this hollow inner shaft through hole, the lower surface of this vertical pole is fixedly connected with the upper bottom surface that should go up brake disc; This lower brake disc that has a central through hole by the longitudinal cross-section be the dish of flattened rectangular and this dish go to the bottom with at least two legs that distribute symmetrically and evenly form, the lateral cross section of this leg is rectangle, the bottom surface of this leg is the inclined-plane with suitable angle, this time brake disc is enclosed within the end of this axle sleeve, and the inboard of the leg of this time brake disc connects by key with the outer wall of this axle sleeve; The lateral cross section of this centrifugal globe rolling groove is that II shape and open end are fixed on this axle sleeve, and the position of this centrifugal globe rolling groove is corresponding with the leg of this time brake disc, and this leg inserts in this centrifugal globe rolling groove; This centrifugal globe places this centrifugal globe rolling groove and contacts with the inclined-plane of this time brake disc leg; This hand brake places in the hollow inner shaft.
2, device as claimed in claim 1 is characterized in that, this hand brake comprises positioning supports, driving connecting rod, Returnning spring, position limit cycle, brake handle up and down; Positioning supports is separately fixed at the upper and lower end parts in this hollow interior axle up and down, the positioning supports center is porose up and down, this driving connecting rod passes this hole at positioning supports center up and down, the upper end of this driving connecting rod is fixed on the connecting rod of brake disc on this, the lower end of this driving connecting rod is fixed with position limit cycle, upward between the connecting rod of brake disc and this upper connecting rod positioning supports Returnning spring is arranged, this Returnning spring is enclosed within outside this driving connecting rod; This brake handle end in the axle in this is hollow is connected with this driving connecting rod rotating component bottom, and the other end is connected with rotating component on this hollow interior axial wall and stretches out outside this hollow interior.
3, device as claimed in claim 1, it is characterized in that, should go up between the madial wall and this hollow interior axle outer wall of brake disc, for key whole circumference or that symmetry is local connects, between the madial wall of this time brake disc leg and the outer wall of this axle sleeve, be that the local key of symmetry connects, this between brake disc and this hollow interior and this time brake disc leg and this axle sleeve, only move up and down, do not relatively rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201227027U CN201250754Y (en) | 2008-09-19 | 2008-09-19 | Centrifugal ball type braking device for a vertical shaft type windmill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201227027U CN201250754Y (en) | 2008-09-19 | 2008-09-19 | Centrifugal ball type braking device for a vertical shaft type windmill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201250754Y true CN201250754Y (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201227027U Expired - Fee Related CN201250754Y (en) | 2008-09-19 | 2008-09-19 | Centrifugal ball type braking device for a vertical shaft type windmill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201250754Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562458A (en) * | 2010-12-28 | 2012-07-11 | 住友重机械工业株式会社 | Reduction gear used in wind power generating equipment |
| CN103216398A (en) * | 2012-01-18 | 2013-07-24 | 陈雪妍 | Wind power generation driving mechanism |
-
2008
- 2008-09-19 CN CNU2008201227027U patent/CN201250754Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562458A (en) * | 2010-12-28 | 2012-07-11 | 住友重机械工业株式会社 | Reduction gear used in wind power generating equipment |
| CN102562458B (en) * | 2010-12-28 | 2014-09-10 | 住友重机械工业株式会社 | Reduction gear used in wind power generating equipment |
| CN103216398A (en) * | 2012-01-18 | 2013-07-24 | 陈雪妍 | Wind power generation driving mechanism |
| CN103216398B (en) * | 2012-01-18 | 2015-07-08 | 陈雪妍 | Wind power generation driving mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20100919 |