CN205277710U - Aerogenerator's tooth belt pretensioning means and aerogenerator - Google Patents
Aerogenerator's tooth belt pretensioning means and aerogenerator Download PDFInfo
- Publication number
- CN205277710U CN205277710U CN201521140534.0U CN201521140534U CN205277710U CN 205277710 U CN205277710 U CN 205277710U CN 201521140534 U CN201521140534 U CN 201521140534U CN 205277710 U CN205277710 U CN 205277710U
- Authority
- CN
- China
- Prior art keywords
- profile
- tooth band
- tightening mechanism
- aerogenerator
- pretension bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003139 buffering effect Effects 0.000 claims description 33
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 26
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Clamps And Clips (AREA)
Abstract
The utility model provides an aerogenerator's tooth belt pretensioning means and aerogenerator, this tooth belt pretensioning means includes the base, set up the tooth belt clamping device on the base, preloaded bolt and buffer unit, have first through -hole on the base, preloaded bolt runs through first through -hole and is connected with tooth belt clamping device, preloaded bolt's bolt head pass through the buffer unit butt the base back to tooth belt clamping device's the terminal surface on. This aerogenerator's tooth belt pretensioning means has reasonable in design, simple structure, can cushion the impact force that notched belt bore, prevents that cracked advantage from appearing in notched belt.
Description
Technical field
The utility model relates to technical field of wind power generation, in particular to profile of tooth band pre-tightening mechanism and the aerogenerator of a kind of aerogenerator.
Background technology
The profile of tooth band of aerogenerator is the important parts of the pitch-controlled system in wind power generating set. Because the Working environment of blower fan is comparatively complicated, and it is comparatively frequent to become oar, therefore the requirement of profile of tooth band is also higher, generally to be had the life-span requirement being not less than 20 years. The quality of profile of tooth band decides the quality of whole aerogenerator, thus the performance requriements of profile of tooth band is higher.
Stop or during commutation work, power is passed to blade by tooth-like belt by transmission system when wind-driven generator pitching system is anxious, because Blade inertia is very big, can to the very big surging force of profile of tooth band for overcoming inertia. Work in practice, in order to prevent profile of tooth band from relaxing, it is necessary to profile of tooth band is carried out pre-tight by pre-tightening mechanism, to ensure the validity of profile of tooth V belt translation.
At present, the pre-tightening mechanism of the tooth-like belt of prior art adopts as shown in Figure 1, tooth-like belt 1 is fixedly connected on profile of tooth band gripping unit 3, the screw rod of pretension bolt 4 is through arranging the first through hole 21 on the base 2, it is threaded with profile of tooth band gripping unit 3, tooth-like belt 1 is carried out pre-tight by the effect that screws of pretension bolt 4 like this. The Path of Force Transfer that the tooth-like belt 1 of this kind of firmly beforehand means is born surging force is followed successively by: tooth-like belt 1, profile of tooth band gripping unit 3, pretension bolt 4 and pedestal 2; it is between each parts in Path of Force Transfer and it is rigidly connected; tooth-like belt 1 is born surging force and cannot be cushioned; easily cause the fracture of tooth-like belt 1; and then it is uncontrollable to cause blade to rotate under mass force and gravity; cause shutdown, even occur destroying blade, the situations such as pylon.
Practical novel content
The purpose of this utility model is to provide profile of tooth band pre-tightening mechanism and the aerogenerator of a kind of reasonable in design, simple aerogenerator of structure, and it can cushion the surging force that tooth-like belt bears, and prevents tooth-like belt from fracture occur.
For achieving the above object, exemplary embodiment of the present utility model provides the profile of tooth band pre-tightening mechanism of a kind of aerogenerator, and pre-tight for being carried out by the profile of tooth band in pitch-controlled system, described profile of tooth band pre-tightening mechanism comprises pedestal; The profile of tooth band gripping unit being arranged on described pedestal; Pretension bolt and buffering parts; Having the first through hole on described pedestal, described pretension bolt runs through described first through hole and is connected with described profile of tooth band gripping unit; The bolt head of described pretension bolt by described buffering parts be connected to described pedestal back on the end face of described profile of tooth band gripping unit.
Can selection of land, described profile of tooth band gripping unit has and the screw that described pretension bolt mates mutually.
Can selection of land, described buffering parts have open holes, and are set in by described open holes on the screw rod of described pretension bolt.
Can selection of land, described profile of tooth band pre-tightening mechanism also comprises cylindrical orienting sleeve; Having the 2nd through hole on described orienting sleeve, described orienting sleeve is set on the screw rod of described pretension bolt by described 2nd through hole, and the bolt head of described pretension bolt is connected on the end face of described orienting sleeve; Being provided with, on the outer wall of the bolt head of the close described pretension bolt of described orienting sleeve, the portion of blocking, described buffering parts are set on described orienting sleeve by described open holes, and two ends be connected to respectively described in block portion and described pedestal.
Can selection of land, described buffering parts are disc spring group and/or spiral stage clip.
Can selection of land, described profile of tooth band pre-tightening mechanism also comprises backing plate; Being provided with third through-hole on described backing plate, described backing plate is set on the screw rod of described pretension bolt by described third through-hole, and the bolt head of described pretension bolt is connected on described backing plate; The two ends of described buffering parts are connected on described backing plate and described pedestal.
Can selection of land, the quantity of described buffering parts is at least two, and at least two described buffering parts are uniformly distributed taking the axis of described pretension bolt as the center of circle.
For achieving the above object, exemplary embodiment of the present utility model also provides a kind of aerogenerator, has the profile of tooth band pre-tightening mechanism of the aerogenerator of above any technology feature.
The profile of tooth band pre-tightening mechanism of aerogenerator of the present utility model and there is the aerogenerator of this profile of tooth band pre-tightening mechanism, by adopt the bolt head of described pretension bolt by described buffering parts be connected to described pedestal back to the technical scheme on the end face of described profile of tooth band gripping unit, not only structure is simple, and the surging force that enough buffering tooth-like belt bears, prevent tooth-like belt from fracture occurring, it is to increase security.
Accompanying drawing explanation
Fig. 1 is the pre-tightening mechanism structural representation of the tooth-like belt of prior art;
Fig. 2 is the profile of tooth band pre-tightening mechanism structural representation of the aerogenerator in embodiment one;
Fig. 3 is the profile of tooth band pre-tightening mechanism structural representation of the aerogenerator in embodiment two;
Wherein: 1-profile of tooth band; 2-pedestal; 21-first through hole; 3-profile of tooth band gripping unit; 31-screw; 4-pretension bolt; 5-cushions parts; 51-open holes; 6-orienting sleeve; 61-the 2nd through hole; 62-blocks portion; 7-backing plate; 71-third through-hole.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the profile of tooth band pre-tightening mechanism of aerogenerator of the present utility model and aerogenerator are further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the utility model, and it is not used in restriction the utility model.
Embodiment one
As shown in Figure 2, the profile of tooth band pre-tightening mechanism of the aerogenerator of the utility model embodiment one is used for being carried out by the profile of tooth band 1 in pitch-controlled system in advance tightly, and this profile of tooth band pre-tightening mechanism comprises pedestal 2; The profile of tooth band gripping unit 3 being arranged on described pedestal 2; Pretension bolt 4 and buffering parts 5. Profile of tooth band 1 is fixedly connected on profile of tooth band gripping unit 3, and pedestal 2 has the first through hole 21, and pretension bolt 4 runs through the first through hole 21, and is connected with profile of tooth band gripping unit 3. Wherein, profile of tooth band gripping unit 3 can being provided with and the screw 31 that pretension bolt 4 phase is mated, pretension bolt 4 can be threaded on screw 31, but be not limited to this and can also adopt other mode of connection that can realize, such as, weld. The bolt head of pretension bolt 4 by buffering parts 5 be connected to pedestal 2 back on the end face of profile of tooth band gripping unit 3.
Owing to pedestal 2 is fixed in aerogenerator, screw effect by pretension bolt 4, it is possible to drive profile of tooth band gripping unit 3 to move, and then realize profile of tooth band 1. The bolt head of pretension bolt 4 by buffering parts 5 be connected to pedestal 2 back on the end face of profile of tooth band gripping unit 3, the Path of Force Transfer that tooth-like belt 1 is born surging force is followed successively by: tooth-like belt 1, profile of tooth band gripping unit 3, pretension bolt 4, buffering parts 5 and pedestal 2, like this by the shock absorption of buffering parts 5, can prevent tooth-like belt 1 from fracture occurring because being subject to surging force, and then improve the security of whole aerogenerator operation.
Specifically, buffering parts 5 have open holes 51, and are set in by open holes 51 on the screw rod of pretension bolt 4. Wherein, cushioning parts 5 can be disc spring group or spiral stage clip, it is also possible to be made up of disc spring group and the combination of spiral stage clip,
When cushioning parts 5 and adopt disc spring group and/or spiral stage clip, usual disc spring group or spiral stage clip all have bigger hole, and the screw diameter of pretension bolt 4 relatively can be smaller, that is cushion the open holes 51 on parts 5 and can there is bigger gap between the screw rod of pretension bolt 4, cause buffering parts 5 unstable, easily occur, cause buffering effect not good.
For this problem, the present embodiment can adopt preferred technical scheme, and profile of tooth band pre-tightening mechanism also comprises cylindrical orienting sleeve 6; Having the 2nd through hole 61 on orienting sleeve 6, orienting sleeve 6 is set on the screw rod of pretension bolt 4 by the 2nd through hole 61, and the bolt head of pretension bolt 4 is connected on the end face of orienting sleeve 6; Being provided with the portion of blocking 62 on the outer wall of the bolt head of the close pretension bolt 4 of orienting sleeve 6, buffering parts 5 are set on orienting sleeve 6 by open holes 51, and two ends are connected on the portion of blocking 62 and pedestal 2 respectively. Filled between open holes 51 and the screw rod of pretension bolt 4 by orienting sleeve 6 like this, it is possible to strengthen the stability of buffering parts 5, and then ensure that buffering effect.
Embodiment two
The profile of tooth band pre-tightening mechanism of the aerogenerator in the present embodiment and embodiment one adopt identical technical scheme, and difference is to cushion the difference of the installation mode of parts 5.
As shown in Figure 3, the profile of tooth band pre-tightening mechanism of the aerogenerator in the present embodiment comprises backing plate 7, backing plate 7 is provided with third through-hole 71, backing plate 7 is set on the screw rod of pretension bolt 4 by third through-hole 71, the bolt head of pretension bolt 4 is connected on backing plate 7, the two ends of buffering parts 5 be connected to backing plate 7 and pedestal 2 back on the end face of profile of tooth band gripping unit 3. Wherein, cushion parts 5 and both can adopt disc spring group or spiral stage clip, it is also possible to adopt elasticity parts arbitrarily such as block rubber or damping cylinder or gas spring etc.
Specifically, the quantity of buffering parts 5 is at least two, and at least two buffering parts 5 are uniformly distributed taking the axis of pretension bolt 4 as the center of circle.
The utility model also provides a kind of aerogenerator, and this aerogenerator has the profile of tooth band pre-tightening mechanism of the aerogenerator in above embodiment.
The profile of tooth band pre-tightening mechanism of the aerogenerator of above embodiment make the utility model have reasonable in design, structure is simple, it is possible to the buffering surging force born of tooth-like belt, prevents tooth-like belt from the advantage of fracture occur.
Above embodiment only have expressed several enforcement mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model patent scope. , it is also possible to make some distortion and improvement, it should be appreciated that for the person of ordinary skill of the art, without departing from the concept of the premise utility these all belong to protection domain of the present utility model. Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (8)
1. a profile of tooth band pre-tightening mechanism for aerogenerator is pre-tight for being carried out by the profile of tooth band (1) in pitch-controlled system, it is characterised in that, described profile of tooth band pre-tightening mechanism comprises pedestal (2); Profile of tooth band gripping unit (3) being arranged on described pedestal (2); Pretension bolt (4) and buffering parts (5);
Having the first through hole (21) on described pedestal (2), described pretension bolt (4) runs through described first through hole (21) and is connected with described profile of tooth band gripping unit (3);
The bolt head of described pretension bolt (4) by described buffering parts (5) be connected to described pedestal (2) back on the end face of described profile of tooth band gripping unit (3).
2. profile of tooth band pre-tightening mechanism according to claim 1, it is characterised in that, described profile of tooth band gripping unit (3) has and the screw that described pretension bolt (4) mates mutually.
3. profile of tooth band pre-tightening mechanism according to claim 1, it is characterized in that, described buffering parts (5) have open holes (51), and are set on the screw rod of described pretension bolt (4) by described open holes (51).
4. profile of tooth band pre-tightening mechanism according to claim 3, it is characterised in that, described profile of tooth band pre-tightening mechanism also comprises cylindrical orienting sleeve (6);
Described orienting sleeve (6) has the 2nd through hole (61), described orienting sleeve (6) is set on the screw rod of described pretension bolt (4) by described 2nd through hole (61), and the bolt head of described pretension bolt (4) is connected on the end face of described orienting sleeve (6);
The outer wall of the bolt head of the close described pretension bolt (4) of described orienting sleeve (6) is provided with the portion of blocking (62), described buffering parts (5) are set on described orienting sleeve (6) by described open holes (51), and two ends be connected to respectively described in block on portion (62) and described pedestal (2).
5. profile of tooth band pre-tightening mechanism according to claim 3, it is characterised in that, described buffering parts (5) are disc spring group and/or spiral stage clip.
6. profile of tooth band pre-tightening mechanism according to claim 1, it is characterised in that, described profile of tooth band pre-tightening mechanism also comprises backing plate (7);
Described backing plate (7) is provided with third through-hole (71), described backing plate (7) is set on the screw rod of described pretension bolt (4) by described third through-hole (71), and the bolt head of described pretension bolt (4) is connected on described backing plate (7);
The two ends of described buffering parts (5) are connected on described backing plate (7) and described pedestal (2).
7. profile of tooth band pre-tightening mechanism according to claim 6, it is characterized in that, the quantity of described buffering parts (5) is at least two, and at least two described buffering parts (5) are uniformly distributed taking the axis of described pretension bolt (4) as the center of circle.
8. an aerogenerator, it is characterised in that, there is the profile of tooth band pre-tightening mechanism of the aerogenerator as described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140534.0U CN205277710U (en) | 2015-12-31 | 2015-12-31 | Aerogenerator's tooth belt pretensioning means and aerogenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140534.0U CN205277710U (en) | 2015-12-31 | 2015-12-31 | Aerogenerator's tooth belt pretensioning means and aerogenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277710U true CN205277710U (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521140534.0U Active CN205277710U (en) | 2015-12-31 | 2015-12-31 | Aerogenerator's tooth belt pretensioning means and aerogenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048014A (en) * | 2019-12-27 | 2021-06-29 | 新疆金风科技股份有限公司 | Blade root bolt fastening control system and control method of wind generating set |
-
2015
- 2015-12-31 CN CN201521140534.0U patent/CN205277710U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048014A (en) * | 2019-12-27 | 2021-06-29 | 新疆金风科技股份有限公司 | Blade root bolt fastening control system and control method of wind generating set |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |