CN202746114U - Blade locking device of wind turbine generator - Google Patents
Blade locking device of wind turbine generator Download PDFInfo
- Publication number
- CN202746114U CN202746114U CN201220301371XU CN201220301371U CN202746114U CN 202746114 U CN202746114 U CN 202746114U CN 201220301371X U CN201220301371X U CN 201220301371XU CN 201220301371 U CN201220301371 U CN 201220301371U CN 202746114 U CN202746114 U CN 202746114U
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- plate
- locking device
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- holes
- latch plate
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Abstract
The utility model provides a blade locking device of a wind turbine generator, comprising a base, a clamping tooth plate and a bolt, wherein the base comprises a first plate, a second plate and a third plate, which are arranged intervals two by two according to the set distance and are sequentially arranged in parallel; the first plate and the second plate are respectively provided with more than two through holes; the through holes in the first plate respectively correspond to the through holes in the second plate; the through holes in the second plate are provided with inner threads matched with the bolt; the through holes in the first plate are unthreaded holes and the position of the first plate corresponds to a range of an inner gear ring of a pitch variable bearing; one edge of the clamping tooth plate is provided with teeth; the teeth of the clamping tooth plate are engaged with teeth of the inner ring of the bearing; the clamping tooth plate is further provided with more than two waist-shaped holes; and the centers of the waist-shaped holes respectively correspond to the through holes in the first plate. The blade locking device has a reasonable and compact structure and overcomes various disadvantages of the prior art; and the blade locking device can safely, reliably, simply and feasibly lock a blade of the wind turbine generator.
Description
Technical field
The utility model relates to wind generating technology, relates in particular to a kind of wind power generation unit blade locking device.
Background technique
The assembling of blade and wheel hub is the important step of wind-driven generator assembling, wherein at blade with after pitch variable bearings on the wheel hub is connected, rotation blade carries out fastening to the blade root bolt, need when beating moment the employing locking device to lock blade and prevent its rotation.Because the blade root bolt quantity is a lot, and in order to guarantee the bolton effect, needing needs frequently rotation and stator blade to blade root bolt pretension at twice during installation, and this just requires locking device not only safe and reliable, and is easy to operate simultaneously, to reduce workload.Locking device mainly adopts fixedly blade root bolt realization stator blade at present.
Existing impeller locking device locks blade by the nut on the fixing blade root bolt, needs blade rotary to accurate location could install during locking, rotates and stator blade needs demounting bolt repeatedly, and workload is larger.And the nut after tightening may produce line with locking device and contact, and its component rotates nut by a small margin, causes nut loosening or tightens, and the bolton precision is affected.
In addition, also have a kind of locking device to be fixed on the blade root bolt, by latch blade and wheel hub are fixed, this device needs to lengthen the blade root bolt, and need to cut out groove at the wheel hub corresponding position.This locking device complicated operation, also need to do corresponding transformation to wheel hub, greatly increased the field-installed operating cost of wind power generating set.
The model utility content
The utility model provides a kind of wind power generation unit blade locking device, has overcome the defective of prior art, realizes safe and reliable, simple locking wind power generation unit blade.
For achieving the above object, technological scheme provided by the utility model is: a kind of wind power generation unit blade locking device, comprise base, latch plate and bolt,
Described base comprises parallel the first plate, the second plate and the 3rd plate that arranges in turn, described the first plate, the second plate and the 3rd plate be the interval setpoint distance in twos, and link into an integrated entity by connecting plate, be respectively arranged with two above through holes on described the first plate and the second plate, through hole on described the first plate is corresponding with the through hole on the second plate respectively, through hole on described the second plate is provided with the internal thread that matches with bolt, through hole on described the first plate is unthreaded hole, in the scope of the position of described the first plate corresponding to the pitch variable bearings inner gear ring;
Be provided with tooth on one side of described latch plate, the tooth engagement of the tooth of described latch plate and bearing ring gear also is provided with two above waist shaped holes on the described latch plate, and the center of described waist shaped hole is corresponding with the through hole on the first plate respectively;
One end of described bolt has limiting board, the other end passes the waist shaped hole of latch plate, the through hole of the first plate and the through hole of the second plate successively, and the middle part screw thread of described bolt is fixed in the through hole of the second plate, outside the scope of the position of described limiting board corresponding to the pitch variable bearings inner gear ring;
Described latch plate is slidingly arranged between limiting board and the first plate along the longitudinal axis direction of pitch variable bearings inner gear ring, in order to shift one's position inside and outside the scope of pitch variable bearings inner gear ring.Namely realize the variation of distance between latch plate and the 3rd plate take bolt as axle slip latch plate, the ultimate range of described the 3rd plate and latch plate is greater than wheel hub and the pitch variable bearings inner gear ring crow flight distance away from wheel hub one side, the minimum range of described the 3rd plate and latch plate is greater than wheel hub and the pitch variable bearings inner gear ring crow flight distance near wheel hub one side, and less than wheel hub and the pitch variable bearings inner gear ring crow flight distance away from wheel hub one side.
Further, the tooth on the described latch plate is 3.
Further, described latch plate adopts structural carbon steel latch plate.
Further, be provided with the mounting hole that has internal thread more than two on described the 3rd plate, described wind generator set blade locking device can be fixed on the wheel hub by the mounting hole that bolt passes on the 3rd plate.
Further, also be provided with packing ring between described limiting board and latch plate.
Further, be respectively arranged with two through holes on described the first plate and the second plate, be provided with two waist shaped holes on the described latch plate.
Further, also be fixed with two handles on the described latch plate.
The working principle of the utility model wind power generation unit blade locking device: before the assembling blade, first the 3rd plate of wind power generation unit blade locking device is fixed (fixing such as bolt) on the boss on the wheel hub web, make the tooth of latch plate towards the tooth of pitch variable bearings ring gear.Blade carrying out fastening blade root working bolt need to be locked the time, bolt is screwed into the waist shaped hole of latch plate, the through hole of the first plate and the through hole of the second plate successively, and be threaded connection in the through hole that is fixed on the second plate, regulate the latch plate take bolt as guiding, make between latch plate and the 3rd plate apart from changing, and make the suitable movement in waist shaped hole of latch plate, so that the tooth of the tooth of latch plate and pitch variable bearings ring gear is intermeshing; When rotation blade, for leading the latch plate is shifted out ring gear with bolt, namely remove the engagement of the tooth of the tooth of latch plate and pitch variable bearings ring gear; During the lifting impeller, at first with latch plate and ring gear engagement, again with bolt tightening fixed card tooth plate.Be that the utility model passes through the fixedly tooth realization stator blade of pitch variable bearings ring gear.
The utility model wind power generation unit blade locking device relies on and the tooth of pitch variable bearings ring gear meshes to lock wind power generation unit blade, mainly has compared with prior art following several respects advantage:
1, simple in structure, easy to operate, but the installation efficiency of Effective Raise wind power generation unit blade;
2, the locking device working strength is high, and by the locking of engagement realization blade, the locking blade is safe and reliable;
The utility model wind power generation unit blade locking device is widely used, and the blade when namely can be used for assembling blade and can be used for lifting impeller again is fastening.
Description of drawings
Fig. 1 is the stereogram of the utility model wind power generation unit blade locking device;
Fig. 2 is another stereogram of the utility model wind power generation unit blade locking device;
Fig. 3 is the structural representation of base;
Fig. 4 is the structural representation of latch plate;
Fig. 5 is the utility model wind power generation unit blade locking device locking state schematic representation;
Fig. 6 is the utility model wind power generation unit blade locking device releasing orientation schematic representation;
Fig. 7 is the locking state schematic representation that the utility model wind power generation unit blade locking device is used for the lifting impeller.
Embodiment
Fig. 1 is the stereogram of the utility model wind power generation unit blade locking device; Fig. 2 is another stereogram of the utility model wind power generation unit blade locking device; Fig. 3 is the structural representation of base; Fig. 4 is the structural representation of latch plate; Fig. 5 is the utility model wind power generation unit blade locking device releasing orientation schematic representation; Fig. 6 is the utility model wind power generation unit blade locking device locking state schematic representation; Fig. 7 is the locking state schematic representation that the utility model wind power generation unit blade locking device is used for the lifting impeller.
The disclosed a kind of wind power generation unit blade locking device of present embodiment as depicted in figs. 1 and 2, comprises base 1, latch plate 2 and bolt 3,
As shown in Figure 3, base 1 adopts structural steel to be welded, specifically comprise parallel the first plate 5, the second plate 6 and the 3rd plate 7 that arranges in turn, the first plate 5, the second plate 6 and the 3rd plate 7 be the interval setpoint distance in twos, and link into an integrated entity by connecting plate, be respectively arranged with two through holes on the first plate 5 and the second plate 6, two through holes of described the first plate 5 are unthreaded hole, two through holes on the first plate 5 are corresponding with two through holes on the second plate 6 respectively, and two through holes on the second plate 6 are provided with the internal thread that matches with bolt 3; In the scope of the position of the first plate corresponding to the pitch variable bearings inner gear ring; Be provided with three mounting holes with internal thread on the 3rd plate 7, the wind generator set blade locking device can be fixed on the wheel hub by the mounting hole that bolt passes on the 3rd plate 7.
As shown in Figure 4, be provided with 3 teeth 11 on one side of latch plate 2, the number that is appreciated that the tooth 11 of latch plate 2 is more than one, in general tooth more than 11 fastening effects are better, but consideration economic factor, the length that tooth 11 quantity increase latch plate 2 also increases thereupon, and cost also improves, and is advisable with 2-5 so consider the number of tooth 11 on the latch plate 2; The tooth 11 of latch plate 2 meshes with the tooth of bearing ring gear, be provided with two waist shaped holes 10 on the latch plate 2, the length direction of tooth 11 is parallel on the length direction of waist shaped hole 10 and the latch plate 2, and the center of two waist shaped holes 10 is corresponding with two through holes on the first plate 5 respectively; When the described wind-electric motor group of present embodiment blade locking device was locked, the pitch variable bearings inner gear ring maintained static, and latch plate 2 is mobile in the scope of waist shaped hole 10, in order to the accurate engagement with the pitch variable bearings inner gear ring of the tooth 11 of realizing latch plate 2; Latch plate 2 in the present embodiment adopts structural carbon steel latch plate, latch plate 2 adopts the softer carbon structure steel making of relative pitch variable bearings (high-strength material manufacturing) in the present embodiment, can not produce to ring gear other adverse effects such as cut when making the tooth 11 of latch plate 2 and becoming the tooth engagement of starching bearing inner race.Also be fixed with two handles 12 on the latch plate 2, convenience moving blockage tooth plate 2 in the scope of waist shaped hole 10 is so that the tooth 11 of latch plate 2 accurately meshes with the pitch variable bearings inner gear ring.
One end of bolt 3 has limiting board (being bolt head), the other end passes the waist shaped hole 10 of latch plate 2, the through hole of the first plate 5 and the through hole of the second plate 6 successively, and the middle part screw thread of described bolt 3 is fixed in the through hole of the second plate 6, outside the scope of the position of limiting board corresponding to the pitch variable bearings inner gear ring; Bolt 3 is the bolt of band portion screw thread, and the described bolt 3 of present embodiment is the GB bolt.2 of limiting board (bolt head) and latch plates also are provided with packing ring 4, and when the utility model wind generator set blade locking device was used for lifting, the setting of packing ring 4 can make the fastening effect of screw thread better.
In addition, above-mentioned wind generator set blade locking device is applied to lift impeller, first the 3rd plate 7 of wind power generation unit blade locking device is detachably fixed (fixing such as bolt) on the boss on wheel hub 9 webs, make the tooth of latch plate 2 towards the tooth of pitch variable bearings ring gear 8; Again bolt 3 is tightened fixed card tooth plate 2, even the first plate 5 and latch plate 2 are close together, as shown in Figure 7.
The utility model is not limited to the described wind power generation unit blade locking device of above-described embodiment, and the change of the conversion of base and latch plate shape, latch plate tooth number all drops within the protection domain of the present utility model.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although with reference to aforementioned each embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment's technological scheme of the utility model.
Claims (8)
1. a wind power generation unit blade locking device is characterized in that, comprising: base, latch plate and bolt,
Described base comprises parallel the first plate, the second plate and the 3rd plate that arranges in turn, described the first plate, the second plate and the 3rd plate be the interval setpoint distance in twos, and link into an integrated entity by connecting plate, be respectively arranged with two above through holes on described the first plate and the second plate, through hole on described the first plate is corresponding with the through hole on the second plate respectively, through hole on described the second plate is provided with the internal thread that matches with bolt, through hole on described the first plate is unthreaded hole, in the scope of the position of described the first plate corresponding to the pitch variable bearings inner gear ring;
Be provided with tooth on one side of described latch plate, the tooth engagement of the tooth of described latch plate and bearing ring gear also is provided with two above waist shaped holes on the described latch plate, and the center of described waist shaped hole is corresponding with the through hole on the first plate respectively;
One end of described bolt has limiting board, the other end passes the waist shaped hole of latch plate, the through hole of the first plate and the through hole of the second plate successively, and the middle part screw thread of described bolt is fixed in the through hole of the second plate, outside the scope of the position of described limiting board corresponding to the pitch variable bearings inner gear ring;
Described latch plate is slidingly arranged between limiting board and the first plate along the longitudinal axis direction of pitch variable bearings inner gear ring, in order to shift one's position inside and outside the scope of pitch variable bearings inner gear ring.
2. described wind power generation unit blade locking device according to claim 1 is characterized in that the tooth on the described latch plate is 3.
3. described wind power generation unit blade locking device according to claim 1 and 2 is characterized in that, described latch plate adopts structural carbon steel latch plate.
4. described wind power generation unit blade locking device according to claim 1 and 2 is characterized in that, is provided with the mounting hole that has internal thread more than two on described the 3rd plate.
5. described wind power generation unit blade locking device according to claim 4 is characterized in that, also is provided with packing ring between described limiting board and latch plate.
6. described wind power generation unit blade locking device according to claim 5 is characterized in that, is respectively arranged with two through holes on described the first plate and the second plate, is provided with two waist shaped holes on the described latch plate.
7. described wind power generation unit blade locking device according to claim 1 and 2 is characterized in that, also is fixed with two handles on the described latch plate.
8. described wind power generation unit blade locking device according to claim 7 is characterized in that, is respectively arranged with two through holes on described the first plate and the second plate, is provided with two waist shaped holes on the described latch plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220301371XU CN202746114U (en) | 2012-06-21 | 2012-06-21 | Blade locking device of wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220301371XU CN202746114U (en) | 2012-06-21 | 2012-06-21 | Blade locking device of wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746114U true CN202746114U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220301371XU Expired - Lifetime CN202746114U (en) | 2012-06-21 | 2012-06-21 | Blade locking device of wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973320A (en) * | 2019-04-28 | 2019-07-05 | 中交第一航务工程局有限公司 | A kind of wheel hub rotary tooling for convenient completion draught fan impeller spelling |
-
2012
- 2012-06-21 CN CN201220301371XU patent/CN202746114U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973320A (en) * | 2019-04-28 | 2019-07-05 | 中交第一航务工程局有限公司 | A kind of wheel hub rotary tooling for convenient completion draught fan impeller spelling |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
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| CX01 | Expiry of patent term |