CN205479178U - Tooth belt overspeed device tensioner and fan change oar device - Google Patents
Tooth belt overspeed device tensioner and fan change oar device Download PDFInfo
- Publication number
- CN205479178U CN205479178U CN201521019259.7U CN201521019259U CN205479178U CN 205479178 U CN205479178 U CN 205479178U CN 201521019259 U CN201521019259 U CN 201521019259U CN 205479178 U CN205479178 U CN 205479178U
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- cog belt
- tensioning
- regulating part
- tooth plate
- piston
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- 230000008859 change Effects 0.000 title abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims abstract description 74
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 description 10
- 239000012530 fluid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model provides a tooth belt overspeed device tensioner and fan change oar device. The tooth belt overspeed device tensioner include: the pinion rack subassembly, pinion rack subassembly and tooth belt fixed connection, the pinion rack seat, the pinion rack subassembly sets up on the pinion rack seat, tensioning regulating part, the movably setting of tensioning regulating part are on the pinion rack seat, just with pinion rack subassembly fixed connection, the bolt elongator, bolt elongator and tensioning regulating part fixed connection to can drive the tensioning regulating part removes. Adopt the technical scheme of the utility model, can be rapidly the first pretightning force in control tooth shape area accurately, at the in -process that becomes the oar action, realize the accurate control to the pretightning force of tooth belt, and then improve and become oar efficiency.
Description
Technical field
This utility model relates to field of wind power equipment, particularly relates to a kind of cog belt tensioner
With blower variable-pitch device.
Background technology
Cog belt becomes the one important change oar technology that oar is Large-scale Wind Turbines, mainly basis
The change of wind speed adjusts blade pitch angle at any time, controls the impeller absorption to wind energy.Due to wind-force
The working environment of electromotor is complex, and change oar acts frequently, therefore wind-driven generator pitching device
Cog belt to be made keeps certain pretightning force, could keep the transmission performance of cog belt, and then ensure
Wind-driven generator has higher change oar efficiency.
Cog belt belongs to Timing Belt, its just pretightning force (first pretightning force) with when reaching service life
The relation curve of cycle-index such as Fig. 1 (cog belt pitch 8mm in Fig. 1, wide 20mm, band
Take turns 32 teeth, load torque Tq=60N m) shown in, it can be seen that just pretightning force mistake
High or the too low service life that all can affect Timing Belt.This explanation accurately controls just pretightning force and can carry
The life-span of high cog belt, and then extend the maintenance period of cog belt, improve wind-driven generator simultaneously
Become oar efficiency.
The first pretightning force controlling cog belt is always the technological difficulties that wind-driven generator pitching controls, existing
The design of some cog belt tensioning device structures is unreasonable, and the first pretightning force of cog belt is regulated inconvenience,
The following several problems of its existence:
1, use the instrument such as hydraulic spanner, torque wrench that cog belt tensioner is carried out pretension,
Adjust the first pretightning force of cog belt.Due to cog belt tensioner itself and its deposit with cog belt
In frictional force so that the pretightning force range of accommodation of cog belt is limited, even cog belt tensioner quilt
Twisting bad, cog belt does not reaches the pretightning force of requirement yet.
2, the first pretensioning operation to cog belt, needs after wind-driven generator becomes oar repeatedly,
Could realize by repeatedly regulating cog belt tensioner, waste time and energy.
3, existing cog belt tensioner, it is impossible to adjust when wind-driven generator carries out becoming oar action
The pretightning force of joint cog belt, causes the inefficiency adjusting just pretightning force.
Utility model content
Embodiment of the present utility model provides a kind of cog belt tensioner and blower variable-pitch device,
With the problem solving cog belt just pretightning force regulation inconvenience.
For reaching above-mentioned purpose, embodiment of the present utility model provides a kind of cog belt tensioner,
Including: tooth plate assembly, tooth plate assembly is fixing with cog belt to be connected；Tooth plate seat, tooth plate assembly is arranged
On tooth plate seat；Tensioning regulating part, tensioning regulating part is movably disposed on tooth plate seat, and with
Tooth plate assembly is fixing to be connected；Bolt tensioning jack, bolt tensioning jack is fixing with tensioning regulating part to be connected,
And tensioning regulating part can be driven to move.
Further, tooth plate seat includes: panel seat main body, and tooth plate assembly is arranged in panel seat main body；
Projection, projection is positioned at the side of panel seat main body, and is provided with installation through hole in projection, and tensioning regulates
Part is arranged in installation through hole, and bolt tensioning jack is connected on tensioning regulating part, and is arranged on projection
The side away from tooth plate assembly.
Further, tooth plate assembly includes: castellated plates, and castellated plates is arranged on tooth plate seat,
Tight regulating part is connected in castellated plates；Pressure strip, pressure strip is pressed in castellated plates and and castellated plates
Being fastenedly connected, cog belt is arranged between castellated plates and pressure strip.
Further, tensioning regulating part is additionally provided with adjusting nut.
Further, bolt tensioning jack includes: piston cylinder；Piston, piston is arranged on piston cylinder
In, and and piston cylinder between there is oil pocket；Stretching nut, stretching nut is fixedly connected with the piston,
And move with stretching nut, tensioning regulating part is connected with stretching nut thread.
Further, bolt tensioning jack also includes spring, and spring is arranged in piston cylinder and abuts
Between the inwall and piston of piston cylinder, and the telescopic direction of spring is consistent with the moving direction of piston.
According to another aspect of the present utility model, also provide for a kind of blower variable-pitch device, including:
Pitch variable bearings；Drive gear, drive gear to be rotatably arranged on fixture；Regulating wheel,
Bearing up pulley is rotatably arranged on fixture；Cog belt, cog belt around gear and the regulating wheel of overdriving,
And at least one end of cog belt is fixed on the outer ring of pitch variable bearings by cog belt tensioner, tooth
Shape band tensioner is the cog belt tensioner in above-described embodiment.
Further, the two ends of cog belt are all fixed on pitch variable bearings by cog belt tensioner
Outer ring on.
Further, drive gear to engage with cog belt, and drive cog belt to move.
The cog belt tensioner of embodiment of the present utility model, blower fan group vane change device, pass through spiral shell
The first pretightning force of cog belt is adjusted by the mode that bolt stretcher matches with tensioning regulating part,
The most just pretightning force can be provided for cog belt, and improve the effect to cog belt just pretightning force regulation
Rate.
Accompanying drawing explanation
Fig. 1 is the first pretightning force relation curve with cycle-index when reaching service life of cog belt；
Fig. 2 is the cog belt tensioner without bolt tensioning jack of embodiment of the present utility model
Top view；
Fig. 3 is the cog belt tensioner without bolt tensioning jack of embodiment of the present utility model
Sectional view；
Fig. 4 is the section view of the bolt tensioning jack of the cog belt tensioner of embodiment of the present utility model
Figure；
Fig. 5 is the structural representation of the original state of the blower variable-pitch device of embodiment of the present utility model
Figure；
Fig. 6 is that the structure that the blower variable-pitch device of embodiment of the present utility model turns an angle is shown
It is intended to.
Description of reference numerals:
10, tooth plate seat；11, protruding；12, panel seat main body；20, tooth plate assembly；21, compress
Plate；22, castellated plates；30, tensioning regulating part；31, adjusting nut；41, piston cylinder；42、
Piston；43, stretching nut；44, spring；45, locking nut；46, hydraulic fluid port；50, oar is become
Bearing；60, gear is driven；61, regulating wheel；80, wheel hub；90, cog belt.
Detailed description of the invention
Cog belt tensioner and blower variable-pitch to this utility model embodiment below in conjunction with the accompanying drawings
Device is described in detail.
As shown in Figures 2 to 4, according to embodiment of the present utility model, cog belt tensioner bag
Include tooth plate assembly 20, tooth plate seat 10, tensioning regulating part 30 and bolt tensioning jack.Wherein, tooth plate
Assembly 20 is fixing with cog belt 90 to be connected, and it is arranged on tooth plate seat 10, and can be relative to tooth
Panel seat 10 moves, to drive cog belt 90 to move and then tensioning cog belt 90.Tensioning regulating part
30 are movably disposed on tooth plate seat 10, and fixing with tooth plate assembly 20 are connected, regulation tensioning
Regulating part 30 can make tooth plate assembly 20 move relative to tooth plate seat 10, and then regulation cog belt 90
On first pretightning force.Bolt tensioning jack is fixing with tensioning regulating part 30 to be connected, and it can drive tensioning
Regulating part 30 moves, and then the regulation tensioning regulating part 30 position on tooth plate seat 10.Work as tooth
When pretightning force on shape band 90 produces change, it acts on the active force on tensioning regulating part 30 and becomes
Change so that the pretightning force change on tensioning regulating part 30, owing to the oil pressure of bolt tensioning jack is fixed,
Therefore it can regulate tensioning regulating part 30 and makes its pretightning force return back to initial condition, and then makes tooth
Shape band 90 reaches pretension requirement.
Specifically, tooth plate assembly 20 is being installed on tooth plate seat 10 by tensioning regulating part 30,
And after one end of cog belt 90 is fixedly connected on tooth plate assembly 20, bolt tensioning jack is pacified
It is filled on tensioning regulating part 30, thus can drive tensioning regulating part by bolt tensioning jack
30 move relative to tooth plate seat 10, make tensioning regulating part 30 can band moving tooth plate assembly 20 at tooth
Move on panel seat 10, and then drive the one end of the cog belt 90 being connected with tooth plate assembly 20 to move,
Realize the tensioning of cog belt 90.
Use bolt tensioning jack that tensioning regulating part 30 is adjusted, make firmly compared to existing
Tensioning regulating part 30 is adjusted having the advantage that bolt tensioning jack is swift in response by square spanner,
It uses simple tension regulation tensioning regulating part 30, without torsional shear and side force, connects coupling part
Contacting surface does not results in frictionally damage, it is possible to accurately controls the amount of movement of tensioning regulating part 30, enters
And make the pretightning force of cog belt 90 quickly and accurately to be controlled.
As shown in Figures 2 and 3, in the present embodiment, tooth plate seat 10 includes panel seat main body 12 He
It is arranged on the projection 11 of the side of panel seat main body 12.This projection 11 can be with panel seat main body 12 1
Body formed, it is also possible to both connect by the modes such as welding, riveting are fixing after processing respectively again.
Panel seat main body 12 is used for placing tooth plate assembly 20.It is provided with installation through hole on protruding 11,
Tight regulating part 30 is located in this installation through hole, one end of tensioning regulating part 30 and tooth plate assembly 20
Connecting, the other end is connected with bolt tensioning jack.Bolt tensioning jack be arranged on protruding 11 away from tooth
The side of board component 20.
In the present embodiment, tensioning regulating part 30 is screw rod.In other embodiments, tensioning is adjusted
Joint part 30 can also be for the structure of other sections of being threaded, as long as it can be solid with tooth plate assembly 20
Fixed connection, and be connected with bolt tensioning jack.
Preferably, tensioning regulating part 30 is provided with adjusting nut 31, itself and tensioning regulating part 30
Threaded, the position of tensioning regulating part 30 can be regulated by rotating adjusting nut 31, make
Its band moving tooth plate assembly 20 moves.Need to regulate its tensioning degree to a wide range at cog belt 90
Time, cannot realize, by bolt tensioning jack, the tensioning state that cog belt 90 is to be reached, such as, exist
When being connected on tooth plate assembly 20 by cog belt 90, cog belt 90 is needed to reach predetermined first
Tight state, can realize by the way of adjusting nut 31 regulates tensioning regulating part 30.
Tooth plate assembly 20 includes castellated plates 22 and pressure strip 21, and both realize and profile of tooth fixing connection
With 90 be reliably connected.Castellated plates 22 is movably disposed on tooth plate seat 10, and tensioning regulates
Part 30 is connected in castellated plates 22.Pressure strip 21 be pressed in castellated plates 22 and with castellated plates 22
Being fastenedly connected, cog belt 90 is arranged between castellated plates 22 and pressure strip 21.This castellated plates 22
On be provided with the teeth groove that shape matches with the profile of tooth of cog belt 90, so that it can with cog belt 90
Tighter with fit, it is ensured that pressure strip 21 and castellated plates 22 coordinate and can be clamped by cog belt 90.
The mode that pressure strip 21 matches with castellated plates 22, can be by cog belt 90 and tooth plate group
Part 20 firmly couples together.Certainly, in order to make pressure strip 21 to be compressed by cog belt 90,
By devices such as screws, pressure strip 21 and castellated plates 22 can be tightened up.
As shown in Figure 4, in the present embodiment, bolt tensioning jack includes piston cylinder 41, piston 42
With stretching nut 43.Wherein, piston 42 is arranged in piston cylinder 41, and with piston cylinder 41 it
Between there is oil pocket, can stuffing pressure medium in oil pocket.Stretching nut 43 is fixing with piston 42 even
Connecing, and move with piston 42, tensioning regulating part 30 is threadeded, thus with stretching nut 43
Realize the regulation to tensioning regulating part 30, to realize the tensioning to cog belt 90.
Connecting on piston cylinder 41 and have hydraulic fluid port 46, this hydraulic fluid port 46 connects with oil pocket.Can from hydraulic fluid port 46
To be passed through pressure medium in oil pocket, the hydraulic pressure of the pressure medium being passed through acts on piston 42
On.When the pretightning force on cog belt 90 in pitch process changes, it acts on tensioning regulating part
Power change on 30 so that the pretightning force change on tensioning regulating part 30, causes tensioning regulating part
30 effects power change on the piston 42, owing to the hydraulic pressure in oil pocket is fixed, therefore piston
42 can produce movement, and the stretching nut 43 being connected with piston 42 can move, and then drive
Tight regulating part 30 produces mobile, it is achieved the tensioning to cog belt 90, and makes tensioning regulating part 30
On pretightning force reply original state.
More preferably, bolt tensioning jack also includes spring 44, in it is arranged on piston cylinder 41 and abut
Between the inwall and piston 42 of piston cylinder 41, and the telescopic direction of spring 44 and piston 42
Moving direction is consistent.Spring 44 contributes to piston 42 return, contributes to emptying the pressure in oil pocket
Medium, cleans guarantee oil pocket when bolt tensioning jack does not uses in.
Alternatively, this bolt tensioning jack also includes locking nut 45, and it is used for locking tensioning regulating part
30, when need not regulate the pretightning force on cog belt 90, can be locked by locking nut 45
Tensioning regulating part 30.
According to another aspect of the present utility model, this utility model provides a kind of blower variable-pitch device,
Aforesaid cog belt tensioner is applied to the change oar dress of wind-driven generator by this blower variable-pitch device
In the first pretension step of the cog belt 90 put.
As it is shown in figure 5, this blower variable-pitch device includes pitch variable bearings 50, driving gear 60, opens
Bearing up pulley 61, cog belt 90 and cog belt tensioner.Wherein, gear 60 and regulating wheel are driven
61 by rotating shaft be arranged on fixture (this fixture can be the wheel hub 80 of wind power generating set,
This wheel hub 80 is fixing with the inner ring of pitch variable bearings 50 to be connected), and can rotate around the axis, cog belt
90 around gear 60 and the regulating wheel 61 of overdriving, and cog belt is passed through at least one end of cog belt 90
Tensioner is fixed on the outer ring of pitch variable bearings 50.
Specifically, drive gear 60 can engage with cog belt 90, and drive cog belt 90 to move
Dynamic.Regulating wheel 61 and the both sides driving gear 60 to be arranged on cog belt 90, so that regulating wheel 61
Can coordinate with cog belt tensioner and cog belt 90 is carried out tensioning effectively.By cog belt
Time on 90 outer rings being fixed on pitch variable bearings 50, auxiliary device can be passed through and (such as, becoming oar
Fixing seat is set on the outer ring of bearing 50) the cog belt vane change device being connected with cog belt 90 is consolidated
It is scheduled on the outer ring of pitch variable bearings 50.
When cog belt 90 being carried out just tensioning, can first regulate adjusting nut 31 and making cog belt 90
There is certain pretightning force, then bolt tensioning jack is installed on tensioning regulating part 30, drives
Gear 60 rotates so that it is drive cog belt 90 to rotate, so make the outer ring of pitch variable bearings 50 with
Cog belt 90 to rotate together, in rotation process, the pretightning force on cog belt 90 produces change,
This change is absorbed by bolt tensioning jack, makes cog belt 90 tensioning, completes at the beginning of cog belt 90
Tensioning.In this course, bolt tensioning jack realizes auto-tensioning, it is not necessary to manual adjustment, automatically
Property is good, and only need to once become oar and just can realize the first tensioning to cog belt 90, more accelerates
Prompt efficient.
As shown in Figure 5 to Figure 6, during cog belt 90 is carried out just tensioning, bolt tension
The specific works process of device and principle are as follows:
Part cog belt between first end and the driving gear 60 of cog belt 90 is Part I tooth
Shape band；Part cog belt between second end and the driving gear 60 of cog belt 90 is Part II
Cog belt.
After making cog belt 90 have certain pretightning force by adjusting nut 31, by bolt tension
Device is installed to tensioning regulating part 30.Drive gear 60 to rotate, make cog belt 90 move, this
Time, the cornerite of in Part I cog belt and Part II cog belt and pitch variable bearings 50
Can reduce, this part cog belt can be converted into cog belt 90 with the partial frictional power of pitch variable bearings 50
Pretightning force and make the pretightning force on this part cog belt increase, cause cog belt 90 to extend necessarily
Length (cog belt 90 exists certain elongation percentage).Along with the extension of cog belt 90, cog belt
The pretightning force of 90 can decline again, and it acts on the power on tensioning regulating part 30 and declines.Due to spiral shell
The hydraulic pressure of bolt stretcher is fixed, and therefore, stretching nut 43 and piston 42 can move (its shifting
Momentum is the elongation of cog belt 90), and pull tensioning regulating part 30, and then drive cog belt
90 move, and make cog belt 90 be tensioned, tensioning complete after by tooth plate assembly 20 and tooth plate seat 10
It is bolted, makes cog belt 90 keep its pretightning force.As long as making pitch variable bearings 50 complete one
Secondary change oar, it is possible to cog belt 90 is completed tensioning by bolt tensioning jack.By controlling bolt
The hydraulic pressure of stretcher can control the first pretightning force on cog belt 90.
In order to ensure cog belt 90 two ends uniform force, can be all connected with at the two ends of cog belt 90
Above-mentioned cog belt tensioner.
In the present embodiment, controlled the pretightning force of cog belt 90 by bolt tensioning jack, can be effective
Improve the regulation efficiency of cog belt 90 pretightning force, relative to using torque spanner regulation cog belt 90
Pretightning force, its regulation efficiency can improve 2～3 times.And, by the control to bolt tensioning jack
System, can control cog belt 90 and have rational pretightning force, increase the life-span of cog belt 90 and prolong
Its maintenance period long.
During change oar action is carried out, it is situated between by the pressure in the oil pocket of control bolt tensioning jack
The hydraulic pressure of matter, the most accurately can control the pretightning force of cog belt 90, it is to avoid
The pretightning force of cog belt 90 becomes the cog belt lost of life that is big or that diminish caused, cog belt cannot
Work, the problem of oar cannot be become, thus improve change oar reliability.
It may be noted that according to the needs implemented, all parts described in this application can be split as
More multi-part, it is possible to the part of two or more parts or parts is combined into new parts, with
Realize the purpose of this utility model.
The cog belt tensioner of embodiment of the present utility model has the effect that
Utilize the mode that bolt tensioning jack matches with tensioning regulating part to regulate the pretension of cog belt
Power, it is possible to quickly and accurately control the pretightning force of cog belt；
By the control to bolt tensioning jack, it is achieved that to the first pretightning force of cog belt and move becoming oar
During work, the accurate control of the pretightning force of cog belt, is effectively improved change oar efficiency；
Control cog belt to be tieed up with reducing it by rational pretightning force, the life-span that cog belt can be increased
Protect the cycle, and then reduce the use cost of cog belt.
The above, detailed description of the invention the most of the present utility model, but protection of the present utility model
Scope is not limited thereto, and any those familiar with the art discloses at this utility model
Technical scope in, can readily occur in change or replace, all should contain in protection of the present utility model
Within the scope of.Therefore, protection domain of the present utility model should be with described scope of the claims
It is as the criterion.
Claims (9)
1. a cog belt tensioner, it is characterised in that including:
Tooth plate assembly (20), described tooth plate assembly (20) is fixing with cog belt (90) to be connected；
Tooth plate seat (10), described tooth plate assembly (20) is arranged on described tooth plate seat (10)；
Tensioning regulating part (30), described tensioning regulating part (30) is movably disposed at described
On tooth plate seat (10), and fixing with described tooth plate assembly (20) it is connected；
Bolt tensioning jack, described bolt tensioning jack is fixing with described tensioning regulating part (30) to be connected,
And described tensioning regulating part (30) can be driven mobile.
Cog belt tensioner the most according to claim 1, it is characterised in that described tooth plate
Seat (10) including:
Panel seat main body (12), described tooth plate assembly (20) is arranged on described panel seat main body (12)
On；
Protruding (11), described projection (11) is positioned at the side of described panel seat main body (12),
And it being provided with installation through hole on described projection (11), described tensioning regulating part (30) is arranged on institute
Stating in installation through hole, described bolt tensioning jack is connected on described tensioning regulating part (30), and sets
Put the side away from described tooth plate assembly (20) in described projection (11).
Cog belt tensioner the most according to claim 1 and 2, it is characterised in that described
Tooth plate assembly (20) including:
Castellated plates (22), described castellated plates (22) is arranged on described tooth plate seat (10),
Described tensioning regulating part (30) is connected in described castellated plates (22)；
Pressure strip (21), described pressure strip (21) is pressed in described castellated plates (22) also
Being fastenedly connected with described castellated plates (22), described cog belt (90) is arranged on described castellated plates (22)
And between described pressure strip (21).
Cog belt tensioner the most according to claim 2, it is characterised in that described tensioning
Adjusting nut (31) it is additionally provided with on regulating part (30).
Cog belt tensioner the most according to claim 1, it is characterised in that described bolt
Stretcher includes:
Piston cylinder (41)；
Piston (42), described piston (42) is arranged in described piston cylinder (41), and with
Described piston cylinder has oil pocket between (41)；
Stretching nut (43), described stretching nut (43) is fixing with described piston (42) even
Connect, and mobile with described piston (42), described tensioning regulating part (30) and described stretching nut
(43) threaded.
Cog belt tensioner the most according to claim 5, it is characterised in that described bolt
Stretcher also includes that spring (44), described spring (44) are arranged in described piston cylinder (41)
And being connected between the inwall of described piston cylinder (41) and described piston (42), and described spring
(44) telescopic direction is consistent with the moving direction of described piston (42).
7. a blower variable-pitch device, it is characterised in that including:
Pitch variable bearings (50)；
Driving gear (60), described driving gear (60) is rotatably arranged on fixture；
Regulating wheel (61), described regulating wheel (61) is rotatably arranged on described fixture；
Cog belt (90), described cog belt (90) walks around described driving gear (60) and institute
State regulating wheel (61), and at least one end of described cog belt (90) is by cog belt tensioner
Being fixed on the outer ring of described pitch variable bearings (50), described cog belt tensioner is claim
Cog belt tensioner according to any one of 1 to 6.
Blower variable-pitch device the most according to claim 7, it is characterised in that described cog belt
(90) two ends are all fixed on described pitch variable bearings (50) by described cog belt tensioner
On outer ring.
Blower variable-pitch device the most according to claim 7, it is characterised in that described driving tooth
Wheel (60) engages with described cog belt (90), and drives described cog belt (90) mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019259.7U CN205479178U (en) | 2015-12-09 | 2015-12-09 | Tooth belt overspeed device tensioner and fan change oar device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521019259.7U CN205479178U (en) | 2015-12-09 | 2015-12-09 | Tooth belt overspeed device tensioner and fan change oar device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479178U true CN205479178U (en) | 2016-08-17 |
Family
ID=56659997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521019259.7U Active CN205479178U (en) | 2015-12-09 | 2015-12-09 | Tooth belt overspeed device tensioner and fan change oar device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422766A (en) * | 2015-12-09 | 2016-03-23 | 北京金风科创风电设备有限公司 | Toothed belt tensioning device and fan variable pitch device |
-
2015
- 2015-12-09 CN CN201521019259.7U patent/CN205479178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422766A (en) * | 2015-12-09 | 2016-03-23 | 北京金风科创风电设备有限公司 | Toothed belt tensioning device and fan variable pitch device |
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