CN208330626U - The detection system and wind power generating set of wind generating set pitch control bearing - Google Patents
The detection system and wind power generating set of wind generating set pitch control bearing Download PDFInfo
- Publication number
- CN208330626U CN208330626U CN201821039114.7U CN201821039114U CN208330626U CN 208330626 U CN208330626 U CN 208330626U CN 201821039114 U CN201821039114 U CN 201821039114U CN 208330626 U CN208330626 U CN 208330626U
- Authority
- CN
- China
- Prior art keywords
- cable
- generating set
- mandrel
- detection system
- detection unit
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 98
- 238000004804 winding Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 2
- 241000606750 Actinobacillus Species 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 10
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 25
- 230000000694 effects Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004904 shortening Methods 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
- Wind Motors (AREA)
Abstract
The utility model provides the detection system and wind power generating set of a kind of wind generating set pitch control bearing, the pitch variable bearings include the rotating part for connecting blade, the detection system includes: distal end detection unit, it is set to rotating part, detected for the rotating part to pitch variable bearings and generates detection signal；Take-up and pay-off device, accommodates cable, and take-up and pay-off device makes cable stretch out and withdraw according to the working condition of pitch variable bearings；Proximal end detection unit obtains detection signal by distal end detection unit；Wherein, the first end of cable connects distal end detection unit, and the second end of cable connects proximal end detection unit.The wire transmission to test signal may be implemented in the detection system, it is ensured that the detection signal stabilization of pitch variable bearings is reliable.
Description
Technical field
The utility model relates to technical field of wind power generation, more particularly, are related to a kind of wind generating set pitch control axis
The detection system and wind power generating set held.
Background technique
In wind-driven generator unit running process, pitch variable bearings generally use reciprocating rotating and move (about 0 degree of motion range
To 90 degree) realize vane propeller-changing.Pitch variable bearings have blade as the important component in wind power generating set, normal work
Effect realizes that the capture of wind energy plays a key effect to the resistance of different wind directions to greatest extent, therefore to the work of pitch variable bearings
It is measured in real time as state very necessary.
The prior art for detect pitch variable bearings rotary part when, test equipment signal transmission generallys use wireless communication
Number transmission device, and test equipment is arranged on the rotary part of pitch variable bearings and realizes test.In fact, due to wireless transmission
Jitter, there are packet loss phenomenons, cause detection data imperfect, are difficult to realize the accurate of pitch variable bearings instantaneous operating conditions
Detection.
Utility model content
The utility model provides a kind of detection system of pitch variable bearings for being able to detect in-service wind power generating set, the detection
The wire transmission to test signal may be implemented in system, it is ensured that the detection signal stabilization of pitch variable bearings is reliable, is wind-driven generator
The operation of group provides safeguard.
One side according to the present utility model provides a kind of detection system of wind generating set pitch control bearing, the variable pitch
Bearing includes the rotating part for connecting blade, which includes:
Distal end detection unit, is set to rotating part, for being detected to pitch variable bearings and generating detection signal；Retractable cable
Device accommodates cable, and take-up and pay-off device makes cable stretch out and withdraw according to the working condition of pitch variable bearings, and cable is used for transmission
Detect signal；Proximal end detection unit obtains detection signal by distal end detection unit；Wherein, the first end of cable connects distal end
The second end of detection unit, cable connects proximal end detection unit.
According to the utility model, take-up and pay-off device includes: drum, is provided with annular wire casing, for winding cable, wire casing
Inside is provided with the first cavity；Mandrel is set to the center position of the first cavity, the second cavity is provided in mandrel；Scrollwork
Spring is set in the first cavity and is set on mandrel, wherein one end of scroll spring is connect with mandrel, scroll spring
The other end and wire casing inside connect.
According to the utility model, being wound on the side wall of cable for wire casing is provided with first through hole, sets on the side wall of mandrel
It is equipped with the second through-hole, the second end of cable sequentially passes through first through hole, the second through-hole enters the second cavity of mandrel, and from mandrel
Bottom be pierced by and connect with proximal end detection unit.
According to the utility model, take-up and pay-off device further include: protection mechanism is formed with third cavity, and drum is set to
In three cavitys, the center of mandrel is overlapped with the center of third cavity, and mandrel is fixed on protection by the bottom of drum
On the bottom of mechanism.
According to the utility model, third through-hole is provided on the side wall of protection mechanism, the first end of cable is logical by third
Hole is connect with distal end detection unit, wherein rubber ring is provided on third through-hole.
According to the utility model, the working condition of pitch variable bearings includes: the first rotation status, wherein pitch variable bearings are towards leaf
Piece is opened paddle direction and is rotated, and drives cable to stretch out from take-up and pay-off device so that scroll spring is tightened；Second rotation status, wherein become
Paddle shaft, which is held towards blade direction of putting away the oars, to be rotated, and scroll spring, which unclamps, drives cable to be recovered to take-up and pay-off device.
According to the utility model, distal end detection unit is sensor, and sensor is fixed at the surface of rotating part, or
It is embedded in the inside of rotating part.
According to the utility model, sensor is one or more, wherein sensor be it is multiple, cable is multiple cable sets
At harness, be correspondingly connected with respectively with the lead-out wire of sensor.
According to the utility model, take-up and pay-off device is arranged on the bracket of pitch motor by bracket；Proximal end detection unit
It is arranged in engine room cover.
According to the utility model, proximal end detection unit is also used to provide power supply to distal end detection unit.
Another aspect according to the present utility model, also provides a kind of wind power generating set, and the wind power generating set includes
The detection system of wind generating set pitch control bearing as described above.
The detection system of wind generating set pitch control bearing provided by the utility model, is held by using take-up and pay-off device
It receives and cable and adapts to the working condition adjustment cable stretch or withdrawal of pitch variable bearings, prevent other of cable and pitch-controlled system portion
Part interferes.The wire transmission of detection signal can not only be realized in the case where the in-service operation reciprocating rotary of pitch variable bearings,
Stabilized power supply can also be provided for detection device by wired connection simultaneously, guarantee that test effect is accurate and reliable, be wind-driven generator
The normal operation of group provides reference.
Detailed description of the invention
By the detailed description with reference to the accompanying drawing to the exemplary embodiment of the utility model, those skilled in the art will
The comprehensive understanding to the utility model can be obtained, in which:
Fig. 1 is the installation site signal for the take-up and pay-off device of embodiment according to the present utility model being located on pitch variable bearings
Figure；
Fig. 2 is the schematic diagram of the take-up and pay-off device of embodiment according to the present utility model.
Drawing reference numeral explanation:
1, pitch variable bearings；11, rotating part；12, the bracket of pitch motor；2, take-up and pay-off device；21, drum；210, wire casing；
22, mandrel；24, protection mechanism；241, upper protective cover；242；Lower protective cover；41, the first cavity；42, the second cavity；43, third
Cavity；51, first through hole；52, the second through-hole；53, third through-hole；54, fourth hole；55, fifth hole；6, engine room cover.
Specific embodiment
Hereinafter, with reference to the accompanying drawings to the embodiments of the present invention are described in detail, wherein in the accompanying drawings, identical attached drawing
Label is for indicating identical component.
Exemplary embodiment according to the present utility model is accommodated cable using take-up and pay-off device and adapts to pitch variable bearings
Working condition adjusts cable stretch or withdrawal, prevents the other component of cable and pitch-controlled system from interfering, and realizes to variable pitch
The reliable detection of the rotary part of bearing, it is ensured that the detection signal of rotary part carries out wire transmission by take-up and pay-off device, with
And the stable power-supplying to detection device, reliable guarantee is provided for the long-term detection of pitch variable bearings, and then ensure wind power generating set
Normal operation.It is described below with reference to preferred embodiment of the Fig. 1 and Fig. 2 to the utility model.
The detection system for the wind generating set pitch control bearing that exemplary embodiment according to the present utility model provides, including
Distal end detection unit, take-up and pay-off device 2, proximal end detection unit, as shown in Figure 1, pitch variable bearings include stationary part (not shown) and
The rotating part 11 of blade is connected, (not shown) is arranged on rotating part 11 in distal end detection unit, for examining to pitch variable bearings 1
It surveys and generates detection signal；Take-up and pay-off device 2, accommodates cable, which makes according to the working condition of pitch variable bearings
Cable is stretched out and is withdrawn, which is used for transmission detection signal, alternatively, the cable is the power supply powered to distal end detection unit
Line；Proximal end detection unit obtains detection signal by distal end detection unit；Wherein, the first end connection distal end of the cable is detected
The second end of unit, the cable connects proximal end detection unit.
In addition, proximal end detection unit is also used to provide power supply to distal end detection unit.During actually detected, due to long-term
Detection will appear battery capacity and be unable to satisfy power demands, if battery capacity can decline or even can not provide in low temperature environment
Power supply, and can solve the power demands of the demand and low temperature environment that can not power for a long time by the way of in the application.
Distal end detection unit can be the sensor of realization pitch variable bearings detection, such as displacement sensor, acceleration sensing
Device etc., but not limited to this, it can also be other detection devices, as long as can be realized the detection to the working condition of pitch variable bearings i.e.
It can.Specifically, sensor can be arranged directly on the surface of rotating part 11, can also be fixed by the bracket and be arranged in rotating part
On 11.Certainly, the influence in order to avoid test environment to testing result, sensor can be arranged in by pre-buried mode to be rotated
Detection accuracy is improved to reduce the interference to test result in the inside in portion 11.Specifically, can according to actual test needs,
One or more sensor is set on rotating part 11.Specifically, the cable in the lead-out wire of sensor and take-up and pay-off device 3 connects
It connects, sensor can be the sensor for detecting same signal, be also possible to detect the sensor of unlike signal.
Take-up and pay-off device 2 may include drum 21, be provided with annular wire casing 210, for winding cable, wire casing 210 it is interior
Side is provided with the first cavity 41；Mandrel 22 is set to the center position of the first cavity 41, is provided with the second cavity in mandrel 22
42；Scroll spring 23 is set in the first cavity 41 and is set on mandrel 22, wherein one end of scroll spring 23 and core
Axis 22 connects, and the other end of scroll spring 23 is connect with the inside of annular wire casing 210.The side wall for being wound with cable of wire casing 210
On be provided with first through hole 51, be provided with the second through-hole 52 on the side wall of mandrel 22, it is logical that the second end of cable sequentially passes through first
Hole 51, the second through-hole 52 enter the second cavity 42 of mandrel 22, and are pierced by from the bottom of mandrel 22 and connect with proximal end detection unit.
Specifically, the annular wire casing 22 for accommodating cable is provided on drum 21, which corresponding with sensor can connect
The cable cable connect, for example, can be a kind of cable cable connecting with the lead-out wire of the sensor when sensor is one；When
When sensor is multiple, it can be the harness that a variety of cable cables are formed, connected respectively with the lead-out wire of corresponding sensor, with reality
It is detected while the multi-signal of existing pitch variable bearings.It should be noted that circle number of the cable on annular wire casing 210 should foot
More than enough, i.e., cable should at least have certain length, to ensure circle number of the cable on annular wire casing 210, so that line
When cable leaves the stretching of annular wire casing 210, still there is reserved cable winding on annular wire casing 210.Certainly, the cable in the application
With no restrictions, it is transmitted as long as can be realized stablizing for signal.
In addition, structure as shown in Figure 2 can be set into annular wire casing 210, may insure in this way wound on wire casing 210
The position of cable is fixed, and the case where upper and lower moving does not occur.It can certainly be arranged to other structures, as long as can ensure to wind
Cable extended and retracted along a certain specific direction.Specifically, being wound on the side wall of cable for wire casing 210 is provided with
The first end of one through-hole 51, cable is connect with distal end detection unit (such as lead-out wire of sensor), by the cable of winding
Second end passes through first through hole 31 and enters in the first cavity 41.
Specifically, the first cavity 41 has can be set in the inside of annular wire casing 210, and is internally provided in the first cavity 41
The center position of the first cavity 41 is arranged in mandrel 22, the mandrel 22, specifically, as shown in Fig. 2, the first cavity 41 can be
Upper end opening, lower end and annular wire casing 210 have same bottom, and certainly, which can be integrally formed.In the first cavity 41
The center position of bottom is provided with the fourth hole 54 for accommodating mandrel 22, it should be noted that the fourth hole 54
Diameter should be slightly bigger than the diameter of mandrel 22, can be reciprocal freely around mandrel 22 to ensure that drum 31 and mandrel 22 are clearance fits
Rotation.Specifically, mandrel 22 can be the cylindrical structure with the second cavity 42, and top and bottom of the second cavity 42
Opening setting, specifically, is provided with the second through-hole 52 on the side wall that mandrel 22 is located in the first cavity 41, into the first sky
The cable of chamber 41, second end can pass through the second through-hole 32 enter the second cavity 42 in, and from the bottom of mandrel 22 be pierced by with
The connection of proximal end detection unit.As shown in Fig. 2, position corresponding in sustained height can be set in first through hole 31 and the second through-hole 32
Place, moves towards connection and reasonable arrangement convenient for cable.
In addition, being equipped with scroll spring 23 in the first cavity 41 and in the outer sheath of mandrel 22, wherein scroll spring 23
One end can be connect with the lower end of mandrel 22, for example, can be provided with receiving scrollwork on the outer ring of the lower end base of mandrel 22
One end of the wire casing (not shown) of spring 23, scroll spring 23 can be fixed in wire casing, but not limited to this, as long as may be implemented
One end of scroll spring 23 is fixed on mandrel 22.The other end of scroll spring 23 can be connect with the inside of wire casing, example
Such as, the hole that can accommodate 23 end of scroll spring can be offered at the inside of wire casing one, the other end of scroll spring 23 can
To be welded in the hole of inside setting of wire casing.It should be noted that as shown in Fig. 2, first through hole 51 and the second through-hole 52 can
To be arranged at the corresponding position of sustained height, specifically, the upper end of the side wall in mandrel 22 and the second cavity 42 can be set
Position at, can be set on mandrel 22 to avoid scroll spring 23 in this way, cable is interfered with scroll spring 23, makes cable
Move towards arrangement it is more reasonable.
In addition, take-up and pay-off device 2 can also include: protection mechanism 24, it is formed with third cavity 43, drum 21 is set to
In three cavitys 43, the center of mandrel 22 is overlapped with the center of third cavity 43, and mandrel 22 passes through the bottom of drum 21
It is fixed on the bottom of protection mechanism 24.In addition, third through-hole 33 is provided on the side wall of protection mechanism 24, the first end of cable
It is connect by third through-hole 53 with distal end detection unit, wherein be provided with rubber ring on third through-hole 33.
Specifically, protection mechanism 26 can be set to the internal hollow structure with third cavity 43, which can be
Cylindrical or rectangle, but not limited to this, as long as drum 21 can be arranged in third cavity.It is said by taking Fig. 2 as an example
Bright, protection mechanism 24 may include upper protective cover 241 and lower protective cover 242, and upper protective cover 241 and lower protective cover 242 can be set
It is set to the structure for the connection that cooperates, specifically, upper protective cover 241 can be by circular bottom plate and in the circumference of circular bottom plate
On axially extend the side wall composition of certain altitude, the end of the side wall of the extension can be set into a ladder, similarly, lower anti-
The side wall that protecting cover 262 is also possible to axially extend certain altitude by circular bottom plate and on the circumference of circular bottom plate forms,
The end of the side wall of the extension can be set into it is ladder-like with the matching ends of the side wall of upper protective cover 241 so that upper anti-
The end of the side wall of the end of the side wall of protecting cover 241 and lower protective cover 242 is cooperatively connected, and it is empty to form third in the inside of its connection
Chamber 43.Certainly the connection type of upper protective cover 241 and lower protective cover 242 is not limited to above structure, for example, can be by upper protective cover
241 and the side wall of lower protective cover 242 be arranged to certain thickness, and be provided with connecting hole on side wall, pass through fastener (example
Such as bolt) connection of protective cover 241 and lower protective cover 242 in realization, specifically, as shown in Figure 1, can be in the circumference of protective cover
Three connecting holes of spaced set on direction, to realize being reliably connected for upper protective cover 241 and lower protective cover 242.But it is not limited to
This, as long as may be implemented to form third cavity in protection mechanism, and realizes the installation of the drum 21 in third cavity 43.
In addition, the center position in the bottom of lower protective cover 242 is provided with fifth hole 55, the fifth hole 55 it is straight
Diameter can be identical with the diameter of above-mentioned mandrel 22.Drum 21 is set in third cavity 43, the center of mandrel 22 and third
The center of cavity 43 is overlapped, that is to say, that the center of mandrel 22 can be with the centre bit of the bottom of lower protective cover 242
Coincidence is set, the second cavity 42 that mandrel 22 can be realized forms hollow be connected to fifth hole 55.Specifically, mandrel 22 can lead to
The fourth hole 54 of line-crossing disk 21 is fixed on lower protective cover 242, for example, mandrel 22 can be with the bottom one of lower protective cover 242
The body formed and hollow connection of holding, in this way, drum 21 can rotate in third cavity 43 around mandrel 22.
Specifically, third through-hole 53 can be formed on the side wall of upper protective cover 241 or lower section protecting cover 242, such as Fig. 2 institute
Show, third through-hole 53 can be formed on the side wall of upper protective cover 241, and the first end of cable can pass through third through-hole 53 and stretch out
It is connect with distal end detection unit.In order to avoid the abrasion of the cable during the work time of drum 21, in the circumference side of third through-hole 53
To rubber ring can be set, for protecting cable that its long-time is avoided to extend and retract caused abrasion, influence to detect signal
Transmission.Ladder as shown in Figure 2, with upper protective cover 241 and the side wall of lower section protecting cover 242 for example can be set into the rubber ring
The structure of shape end engaging, or is directly adhesively fixed on the circumferential inner wall of third through-hole 53, but not limited to this, as long as can be with
Realize the protection to cable.
In addition, take-up and pay-off device 2 can be placed on the bracket 12 of pitch motor corresponding to pitch variable bearings 1 by bracket
On, as shown in Figure 1, take-up and pay-off device 2 is fixed on the bottom position of pitch motor, and the first end of cable and pitch variable bearings 1
Rotating part 11 connect, the second end of cable and proximal end detection unit is connected after being pierced by from the bottom of take-up and pay-off device 2, specifically
Ground, proximal end detection unit can be set in engine room cover 6, for example, proximal end detection unit can be observing and controlling cabinet, also can be set
At the position of the other component of other wind-force electrical machinery units with sampler, it should be noted that the second end of cable is drawn
Part out can in such a way that wire casing is set fixed wiring path, and proximal end detection unit is connected to, so that it is guaranteed that cable
It is arranged in an orderly manner in engine room inside, staff is facilitated to inspect periodically and safeguard.
By the way that above-mentioned take-up and pay-off device 2 to be fixedly connected on the bracket 12 of pitch motor, may be implemented to pitch variable bearings 1
The detection of in-service state.Specifically, take-up and pay-off device 2, which is arranged on the bracket 12 of pitch motor, can make pitch variable bearings realize such as
Lower working condition: specifically including, the first rotation status, wherein pitch variable bearings 1 are opened paddle direction towards blade and are rotated, drive cable from
It is stretched out in take-up and pay-off device 2 so that scroll spring 23 is tightened；Second rotation status, wherein pitch variable bearings 1 are put away the oars direction towards blade
Rotation, scroll spring 23 unclamps and cable is driven to be recovered in take-up and pay-off device 2 at this time.Since scroll spring 23 is placed on drum
In second cavity 42 of 21 insides, and one end of scroll spring 23 and the bottom of mandrel 22 are fixed, the other end of scroll spring 22
It is connect with the inner wall of drum 21.Therefore, it when outer power drive drum rotates, drives scroll spring to tighten and store kinetic energy, that is, becomes
Paddle shaft holds 1 execution and drives drum 21 to rotate in the forward direction towards far from take-up and pay-off device 2, i.e. the paddle direction of opening of blade rotates, and the of cable
One end is left wire casing 210 and stretched out from third through-hole 53 revolves along the paddle direction of opening of blade together with the rotating part 11 of pitch variable bearings 1
Turn.After external force disappears, the torsion driving drum of scroll spring is reversely rotated, and scroll spring discharges kinetic energy at this time, drives cable
It withdraws, i.e., pitch variable bearings 1 are executed reversely rotates towards close to 2 direction of take-up and pay-off device, i.e. the direction of putting away the oars of blade rotates, stretches
Cable out is retracted in drum by third through-hole 53.Drum 21 inside take-up and pay-off device 2 is rotated in the forward direction and is reversely revolved
Turn, the elongation and shortening of cable may be implemented, and then realizes and the reliable power supply and signal of the rotating part of pitch variable bearings are transmitted.
The wind power generating set of another embodiment according to the present utility model may include detection system mentioned above.
The detection system of embodiment according to the present utility model accommodates cable using take-up and pay-off device and adapts to pitch variable bearings
Working condition adjustment cable stretch or withdrawal, prevent the other component of cable and pitch-controlled system from interfering.It simultaneously can be with
Realize that component in the case where in-service operation, reliably detects rotary part, it is ensured that the detection signal of rotary part passes through
Take-up and pay-off device realizes wire transmission and the stable power-supplying to detection device.Rotary part (such as pitch variable bearings can be thus achieved
Rotating part) and stationary parts (such as proximal end detection unit) between signal reliable transmission, be component (such as pitch variable bearings) length
Phase detection provides reliable guarantee, and then ensures the normal operation of wind power generating set.
Specific embodiment of the present utility model is described in detail above, although having show and described some realities
Apply example, it will be understood by those skilled in the art that do not depart from defined by the claims and their equivalents it is practical
In the case where novel principle and spirit, these embodiments can be combined, be modified and perfect, these combinations, modification and
Improve also answer it is within the protection scope of the present utility model.
Claims (11)
1. a kind of detection system of wind generating set pitch control bearing, the pitch variable bearings (1) include the rotating part for connecting blade
(11), which is characterized in that the detection system includes:
Distal end detection unit is set to the rotating part (11), for examining to the rotating part (11) of the pitch variable bearings (1)
It surveys and generates detection signal；
Take-up and pay-off device (2), accommodates cable, and the take-up and pay-off device (2) makes according to the working condition of the pitch variable bearings (1)
The cable is stretched out and is withdrawn；
Proximal end detection unit obtains the detection signal by the distal end detection unit；
Wherein, the first end of the cable connects the distal end detection unit, and the second end of the cable connects the proximal end inspection
Survey unit.
2. the detection system of wind generating set pitch control bearing according to claim 1, which is characterized in that the retractable cable
Device (2) includes:
Drum (21) is provided with annular wire casing (210), and for winding the cable, is provided on the inside of the wire casing (210)
One cavity (41)；
Mandrel (22) is set to the center position of first cavity (41), is provided with the second cavity in the mandrel (22)
(42)；
Scroll spring is set in first cavity (41) and is set on the mandrel (22), wherein the scrollwork bullet
One end of spring is connect with the mandrel (22), and the other end of the scroll spring is connect with the inside of the annular wire casing (210).
3. the detection system of wind generating set pitch control bearing according to claim 2, which is characterized in that
It is provided with first through hole (51) on the side wall for being wound with the cable of the wire casing (210), the side of the mandrel (22)
It is provided on wall the second through-hole (52), the second end of the cable sequentially passes through the first through hole (51), second through-hole
(52) enter second cavity (42) of the mandrel (22), and be pierced by from the bottom of the mandrel (22) and detect list with the proximal end
Member connection.
4. the detection system of wind generating set pitch control bearing according to claim 2, which is characterized in that the retractable cable
Device (2) further include:
Protection mechanism (24) is formed with third cavity (43), and the drum (21) is set in the third cavity (43), described
The center of mandrel (22) is overlapped with the center of the third cavity (43), and the mandrel (22) passes through the drum
(21) bottom is fixed on the bottom of the protection mechanism (24).
5. the detection system of wind generating set pitch control bearing according to claim 4, which is characterized in that the protection machine
It is provided on the side wall of structure (24) third through-hole (53), the first end of the cable passes through the third through-hole (53) and described remote
Hold detection unit connection, wherein be provided with rubber ring on the third through-hole (53).
6. the detection system of wind generating set pitch control bearing according to claim 2, which is characterized in that the pitch axis
The working condition for holding (1) includes:
First rotation status, wherein the pitch variable bearings (1) are opened paddle direction towards blade and rotated, and drive the cable from the receipts
Actinobacillus device (2) stretches out so that scroll spring is tightened；
Second rotation status, wherein the pitch variable bearings (1) rotate towards blade direction of putting away the oars, and the scroll spring, which unclamps, to be driven
The cable is recovered to the take-up and pay-off device (2).
7. the detection system of wind generating set pitch control bearing according to claim 1, which is characterized in that the distal end inspection
Surveying unit includes sensor, and the sensor is fixed at the surface of the rotating part (11), or is embedded in the rotation
The inside in portion (11).
8. the detection system of wind generating set pitch control bearing according to claim 7, which is characterized in that the sensor
For one or more, wherein the sensor be it is multiple, the cable be multiple cables composition harness, respectively with the biography
The lead-out wire of sensor is correspondingly connected with.
9. the detection system of wind generating set pitch control bearing according to claim 1, which is characterized in that the retractable cable
Device (2) is arranged on the bracket (12) of pitch motor by bracket；The proximal end detection unit setting is in engine room cover (6).
10. the detection system of wind generating set pitch control bearing according to claim 1, which is characterized in that the proximal end
Detection unit also provides power supply to the distal end detection unit by the cable.
11. a kind of wind power generating set, which is characterized in that the wind power generating set includes such as any one of claim 1-10
The detection system of the wind generating set pitch control bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039114.7U CN208330626U (en) | 2018-06-29 | 2018-06-29 | The detection system and wind power generating set of wind generating set pitch control bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821039114.7U CN208330626U (en) | 2018-06-29 | 2018-06-29 | The detection system and wind power generating set of wind generating set pitch control bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330626U true CN208330626U (en) | 2019-01-04 |
Family
ID=64786091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821039114.7U Active CN208330626U (en) | 2018-06-29 | 2018-06-29 | The detection system and wind power generating set of wind generating set pitch control bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330626U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576532B (en) * | 2022-03-01 | 2023-06-30 | 峥嵘智能科技(南京)有限公司 | Video monitoring device for real-time motion quantity statistics in body teaching process |
-
2018
- 2018-06-29 CN CN201821039114.7U patent/CN208330626U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576532B (en) * | 2022-03-01 | 2023-06-30 | 峥嵘智能科技(南京)有限公司 | Video monitoring device for real-time motion quantity statistics in body teaching process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5427757B2 (en) | Lightning strike detection device for hollow structure, wind turbine rotor and wind power generator equipped with the same | |
| CN208330626U (en) | The detection system and wind power generating set of wind generating set pitch control bearing | |
| JP2008298051A (en) | Wind power generator device | |
| CN103217337B (en) | The proving installation of detection streamer mechanical property | |
| DE102011105306A1 (en) | Portable tool with wireless data transmission | |
| CN109163688A (en) | A kind of three basic point roof delamination monitoring instrument | |
| CN110023714A (en) | For measuring the measuring system and measurement method of the stator of the wind energy plant without transmission device | |
| CN103217338B (en) | Testing device for measuring cable tensile force and torsion performance | |
| CN107253213A (en) | The intelligent robot of rotary type laser radar apparatus is installed | |
| CN103954796B (en) | For the device that three floating gyroaccelerometer power transmitting devices are tested and tested | |
| CN106546432A (en) | A kind of solid propellant rocket ground rotation test calibrated in situ device | |
| CN102111039A (en) | Flameproof motor | |
| CN204251094U (en) | Large-sized cable puts take-up and proving installation | |
| CN208383127U (en) | Convenient angle measurement actinobacillus device | |
| CN216559342U (en) | Cable route intelligent detection device | |
| CN208476224U (en) | A kind of three basic point roof delamination monitoring instrument | |
| CN210442392U (en) | Self-driven rotating speed sensor of rotary cylinder type turbine drilling tool based on friction nanometer | |
| CN201748971U (en) | Rotating test platform | |
| CN207764886U (en) | Electrical part cable wiring mechanism in a kind of automatic vending machine revolving door | |
| CN209009877U (en) | A kind of power supply disks | |
| CN217006140U (en) | Hydraulic detection equipment convenient to temperature measurement response | |
| CN208071004U (en) | A kind of guiding wheel assembly with length metering device | |
| CN117262920A (en) | Wire rod storage device | |
| CN220340302U (en) | Resistance tester with tool storage function | |
| CN215116464U (en) | N-pole external flexible mutual inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |