CN105424761B - Toothed belt detection device and method and variable pitch device - Google Patents
Toothed belt detection device and method and variable pitch device Download PDFInfo
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- CN105424761B CN105424761B CN201510901826.XA CN201510901826A CN105424761B CN 105424761 B CN105424761 B CN 105424761B CN 201510901826 A CN201510901826 A CN 201510901826A CN 105424761 B CN105424761 B CN 105424761B
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- 238000001514 detection method Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title abstract description 10
- 238000012360 testing method Methods 0.000 claims description 32
- 239000000523 sample Substances 0.000 claims description 23
- 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 18
- 230000004308 accommodation Effects 0.000 claims description 7
- 210000003781 tooth socket Anatomy 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 239000004020 conductor Substances 0.000 description 21
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/01—Monitoring wear or stress of gearing elements, e.g. for triggering maintenance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/01—Monitoring wear or stress of gearing elements, e.g. for triggering maintenance
- F16H2057/014—Monitoring wear or stress of gearing elements, e.g. for triggering maintenance of friction elements in transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/01—Monitoring wear or stress of gearing elements, e.g. for triggering maintenance
- F16H2057/018—Detection of mechanical transmission failures
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- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention provides a tooth-shaped belt detection device and method and a pitch control device. Be provided with at least one wire in the toothed belt, toothed belt detection device includes: and the resistance detector is electrically connected with the metal wire and is used for detecting the resistance value of the metal wire and judging the on-off of the metal wire according to the resistance value. The tooth belt detection device can conveniently and quickly detect the tooth belt.
Description
Technical field
The present invention relates to wind power generating set security detection equipment field more particularly to a kind of toothed belt detection device and sides
Method, vane change device.
Background technique
Toothed belt is the transmission belt that a kind of working face has tooth-shape structure, it using band tooth and gear teeth meshing transmitting power and
Movement.Toothed belt is by the transmission device as wind generating set pitch control system, compared to using gear as the change of transmission device
Oar system, using toothed belt pitch-controlled system the advantages of be stable drive, noise is small, maintenance is simple, convenient and cost is relatively low.But
The bearing capacity of toothed belt is limited, when bearing larger wind load, is easy to happen fracture, if toothed belt is broken, blade exists
Under effect of inertia, blade can be caused to sweep the major accidents such as tower around pitch variable bearings rotation.
Industry, which lacks, at present carries out long-term, automatic prison to the on off operating mode of the pitch-controlled system internal tooth form band of wind power generating set
The means of survey.
Summary of the invention
The embodiment of the present invention provides a kind of toothed belt detection device and method, vane change device, to solve existing wind-force
The problem for not having the equipment for detecting toothed belt fracture to cause safety low in generating set.
In order to achieve the above objectives, the embodiment of the present invention provides a kind of toothed belt detection device, be provided in toothed belt to
A few wire, toothed belt detection device includes: resistance detector, and resistance detector is electrically connected with wire, and detects gold
The resistance value for belonging to silk, the on-off of wire is judged according to resistance value.
Further, it is provided with a plurality of wire in toothed belt, toothed belt detection device further includes two connectors, and two
Connector is fixed at the both ends of toothed belt, and with the wire of toothed belt it is electrically conductive connect, by a plurality of gold of toothed belt
Belong to silk and connect into a conductor, resistance detector is connect by connector with wire.
Further, a plurality of wire, toothed belt detection device are provided in toothed belt further include: connector, connector
Be fixed at the first end of toothed belt, and with the wire of toothed belt it is electrically conductive connect after converge to a node；Switching
Switch, switching switch is connected to the second end of toothed belt, and switchably connect with wire, one end of resistance detector with cut
Switch connection is changed, the Node connectedness of the other end and the connector convergence of resistance detector switches switch control and resistance detector
The wire of connection.
Further, connector includes: pedestal, and pedestal has the accommodation space for the end for accommodating toothed belt；Multiple conductions
Probe, multiple conducting probe fixed settings on the base, and are protruded into accommodation space, a plurality of metal of conducting probe and toothed belt
Silk is correspondingly arranged and electrically conductive connects.
Further, pedestal includes top board and is interval in top board and is fixedly connected on the lower platen on top board, on
The tooth socket section with toothed belt cooperation is provided on pressing plate and/or lower platen.
Further, multiple conducting probe every two of connector are one group, and every group of conducting probe is by being conductively connected block
Connection.
Further, toothed belt detection device further includes self-test switch, and self-test switch is in parallel with toothed belt, and is controlled whether
Short-circuit toothed belt.
Further, toothed belt detection device further includes alarm, and alarm is connect with resistance detector, and is examined by resistance
Survey the control alarm of device.
According to another aspect of the present invention, a kind of toothed belt detection method is provided comprising following steps: by toothed belt
Wire is connect with resistance detector；The resistance value that wire is powered and detected to the wire of toothed belt, sentences according to resistance value
The on-off of disconnected wire.
Further, closure is further comprised the steps of: before the step of connecting the wire of toothed belt with resistance detector
Self-test switch, by toothed belt short circuit, self-test of powering, and alarm is controlled according to self-detection result or connects toothed belt and resistance detector
It connects.
According to another aspect of the present invention, a kind of vane change device is provided, the tooth form including toothed belt and with tooth form band connection
Band detection device, toothed belt detection device are above-mentioned toothed belt detection device.
The toothed belt detection device of the embodiment of the present invention is able to detect the on-off of the wire of toothed belt, and then can examine
Survey whether toothed belt has fracture, structure is simple, and detection is reliable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of toothed belt；
Fig. 2 is the end to end structural schematic diagram of wire of toothed belt；
Fig. 3 is the structural schematic diagram of the toothed belt detection device of the first embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the toothed belt detection device of the second embodiment of the present invention；
Fig. 5 is that the connector of the toothed belt detection device of the first embodiment of the present invention removes the structural representation of top board
Figure；
Fig. 6 is the side view of the connector of the toothed belt detection device of the first embodiment of the present invention.
Description of symbols:
11, resistance detector；12, self-test switch；20, connector；21, pedestal；211, top board；212, lower platen；
213, tooth socket section；214, bolt；22, conducting probe；23, it is conductively connected block；30, switching switch；90, toothed belt；91, metal
Silk.
Specific embodiment
The toothed belt detection device and method of the embodiment of the present invention, vane change device are retouched in detail with reference to the accompanying drawing
It states.
Embodiment one
As shown in Figure 1, the toothed belt 90 used in the vane change device of wind power generating set generally includes 91 He of wire
The rubber being wrapped in outside wire 91.The effect of wire 91 in toothed belt 90 is to improve the intensity of toothed belt 90, prevents tooth
Shape band 90 is broken, and improves the service life of toothed belt 90.
In the present invention, whether it is broken using the conductive characteristic detection wire 91 of wire 91, if wire 91 is broken
Illustrate that toothed belt 90 is at least partly broken, need replacing maintenance, is achieved in the detection to toothed belt 90.
When the wire 91 to toothed belt 90 detects, every one metal wire 91 can individually be detected, it can also
It is detected so that all wires 91 are sequentially connected end to end into a conductor (as shown in Figure 2).
Certainly, toothed belt detection device of the invention can also be applied to the detection of other transmission belts with wire.
As shown in figure 3, according to an embodiment of the invention, toothed belt detection device includes resistance detector 11, when detection, will
Wire 91 is connect with resistance detector 11, is detected by resistance of the resistance detector 11 to wire 91, if it is detected that
The resistance value of wire 91 is greater than predetermined value, then it represents that wire 91 is broken；If it is detected that the resistance value of wire 91 be less than
Predetermined value, then it represents that wire 91 is unbroken.It can be realized using this toothed belt detection device and online prison carried out to toothed belt 90
(on-line monitoring refers to the monitoring cycle according to agreement, periodically automatic monitoring) is surveyed, can be detected at the initial stage that toothed belt 90 is damaged
It arrives, is effectively prevented toothed belt 90 and is broken completely, and then avoid wind power generating set failure, reduce loss.
Technical idea of the invention is:
It is detected by the resistance value to the wire 91 (such as steel wire) in toothed belt 90, and is judged according to resistance value
The on-off of wire 91, and then judge the crack conditions of toothed belt 90, detection is reliable, fast.
In the present embodiment, 91 head and the tail of a plurality of wire being arranged in toothed belt 90 are connected into a conductor, and carried out
Measurement.
Specifically, toothed belt detection device further includes two connectors 20, and fixation is set two connectors 20 correspondingly
Set at the both ends of toothed belt 90, and with the wire of toothed belt 90 91 it is electrically conductive connect, by the wire 91 of toothed belt 90
Connect into a conductor (connection type is as shown in Figure 2).Resistance detector 11 is by the both ends of connector 20 and conductor (in this reality
It applies in example, the both ends of conductor are respectively positioned on the side of toothed belt 90, therefore resistance detector 11 passes through a connector 20 and tooth form
Band 90 connects, if the both ends of conductor are located at the both ends of toothed belt 90, resistance detector 11 passes through two connectors 20 and tooth form
Band 90 connects) electrical connection.So when detecting, resistance detector 11 can detecte the resistance value of conductor, and according to detecting
Resistance value judges whether the wire 91 for forming conductor has fracture.If the resistance value that wire 91 without fracture, is measured is to lead
(resistance value of usual single metal wire 91 is related with the material of wire 91 and specification, usually 30 Europe for the resistance value of body itself
Nurse to 40 ohm, the resistance value of conductor with it includes the quantity of wire 91 it is related, conductor resistance value is approximately equal to wire 91
Quantity multiplied by single metal wire 91 resistance value)；If any one fracture in wire 91, the resistance value measured become
Nearly infinity (usually 9948 ohm to 9999 ohm).
As shown in Figure 5 and Figure 6, connector 20 includes pedestal 21 and multiple conducting probes 22.
Pedestal 21 is used to be fixedly connected with toothed belt 90 for installing the other components such as conducting probe 22, to guarantee
Conducting probe 22 can reliably be connect with wire 91, and then guarantee the reliability of detection.Pedestal 21, which has, accommodates toothed belt
The accommodation space of 90 end, toothed belt 90 are protruded into the accommodation space and are fixed in pedestal 21.
Specifically, pedestal 21 includes top board 211 and is interval in top board 211 and is fixedly connected on top board 211
Lower platen 212.It is fastenedly connected between top board 211 and lower platen 212 by bolt 214, and toothed belt 90 is clamped, guaranteed
In the case where toothed belt 90 can be reliably fixed, toothed belt 90 is avoided damage to.
Certainly, in other embodiments, pedestal 21 can be other structures, as long as toothed belt 90 can be reliably fixed i.e.
It can.
Preferably, the tooth socket section 213 cooperated with toothed belt 90 is provided on top board 211 and/or lower platen 212.In tooth
In 90 course of work of shape band, toothed belt 90 needs to bear the power such as pretightning force and frictional force, for prevent these power make toothed belt 90 with
Pedestal 21 separates, thus tooth socket section 213 is arranged on top board 211 and/or lower platen 212, and tooth socket section 213 can be with toothed belt
90 tooth occlusion, improves connection reliability.In the present embodiment, the tooth socket section 213 is provided on lower platen 212.
Conducting probe 22 is fixed on the lower platen 212 of pedestal 21, and is protruded into accommodation space, so as to conducting probe
22 can be correspondingly connected with the wire 91 of toothed belt 90.For example, each conducting probe 22 is connect with an one metal wire 91,
And two conducting probes 22 link together as needed, so that wire 91 is formed conductor, then the one of resistance detector 11
It holds and is connect with the conducting probe 22 for being located at conductor one end, the other end of resistance detector 11 is visited with the conductive of the conductor other end is located at
Needle 22 connects.
It is of course also possible to omit the conducting probe 22 connecting with the end of conductor, make resistance detector 11 directly and conductor
End connection.
In order to connect the wire 91 of toothed belt 90,22 every two of conducting probe of connector 20 is one group, often
Group conducting probe 22 is connected by being conductively connected block 23.More one metal wires 91 in toothed belt 90 can be connected in this way,
Finally realize that all wires 91 are connected to become a conductor.Shown in Figure 3, toothed belt detection device further includes self-test switch
12.It is used to carry out self-test to toothed belt detection device, to guarantee detection accuracy.
Resistance detector 11 is mainly used for judging whether wire 91 is broken.When being tested, resistance detector 11 is detected
The resistance of wire 91, and judge the on-off of the wire 91 of toothed belt 90.Preferably, resistance detector 11 PLC can be used (can
Programmable controller).Certainly, in other embodiments, resistance detector 11 can be single-chip microcontroller or computer or multimeter or its
It can be realized the device of detection.
The effect of self-test switch 12 is first detected to toothed belt detection device before detecting to toothed belt 90, true
It protects in the trouble-free situation of toothed belt detection device and toothed belt 90 is detected, to guarantee that detection is reliable.Self-test switch 12 with
Toothed belt 90 is in parallel, and controls whether short-circuit toothed belt 90.When self-test, self-test switch 12 is closed, toothed belt 90 is short-circuited, tooth
Shape band detection device self-test, self-test switch 12 is disconnected, toothed belt 90 is accessed, is detected to it if self-test fault-free.
It alarms if self-test is faulty, so that staff can repair in time.
Toothed belt detection device further includes alarm, and alarm is connect with resistance detector 11, and by resistance detector 11
Control alarm.When the fracture of wire 91 is out of order or is detected in toothed belt detection device self-test, resistance detector 11 is controlled
Alarm equipment alarm, to notify staff to repair in time, to guarantee operational safety.Alarm can be loudspeaker, warning lamp
Deng being also possible to the display screen connecting with resistance detector 11, resistance detector 11 controls display screen display alarm information and inspection
The resistance value etc. measured, so that staff checks.The alarm can be the alarm of wind power generating set, and not have to independent
Alarm is set.
According to another aspect of the present invention, a kind of toothed belt detection method is provided, this method is examined by above-mentioned toothed belt
It surveys device to detect toothed belt, this method comprises the following steps:
The wire 91 of toothed belt 90 is connect with resistance detector 11；
The resistance value of wire 91 is powered and detected to the wire 91 of toothed belt 90.Wire is judged according to resistance value
On-off.Resistance value by detecting wire 91 may determine that the on-off of wire 91, and then whether can judge toothed belt 90
The case where there are cracking or fractures, such detection method is simple and fast and high reliablity.
Preferably, to guarantee to detect reliability, in the step for connecting the wire 91 of toothed belt 90 with resistance detector 11
It is further comprised the steps of: before rapid
Self-test switch 12 is opened, by the short circuit of toothed belt 90, self-test of powering, and alarm controlled according to self-detection result or by tooth form
Wire 91 with 90 is connect with resistance detector 11.Before carrying out wire 91 and detecting, carrying out self-test can guarantee to detect
Reliability.
According to another aspect of the present invention, a kind of vane change device is provided, which includes toothed belt 90 and and tooth form
Toothed belt detection device with 90 connections, the toothed belt detection device are above-mentioned toothed belt detection device.
The course of work detected using toothed belt detection device to toothed belt 90 is as follows:
Connector 20 is fixedly connected in toothed belt 90, all wires 91 in toothed belt 90 are connected to become one
The complete conductor of root.Resistance detector 11 is connect with connector 20, it is connect with wire 91, utilizes resistance detector 11
Resistance value detection is carried out to the conductor that wire 91 forms.
11 every 10s (second) of resistance detector detects the on-off of a toothed belt 90.Before being detected to wire 91, open certainly
Switch 12 is examined, by 91 short circuit of wire, whether the control toothed belt detection device self-test route of resistance detector 11 is normal, if line
Road is normal, then carries out toothed belt detection, if line anomalies, stops toothed belt detection, and alarm.
After 11 self-test of resistance detector is normal, self-test switch 12 is closed, and wire 91 is accessed, and resistance detector 11 detects
The resistance value of conductor, and judge whether conductor has fracture according to resistance value.If detection resistance value is greater than predetermined value, wire 91
There are fractures, i.e., there are crack conditions for toothed belt, transfer information to the master control system of wind power generating set, control wind-power electricity generation
Compressor emergency shutdown protection, and alarm.If the resistance value of detection is not more than predetermined value, wire 91 without fracture, i.e., toothed belt without
Fracture, resistance detector 11 will test the master control system that information is passed to wind power generating set, so that staff checks.
The transmission system of the rotary part of wind power generating set is monitored using the toothed belt detection device and method,
It can be sounded an alarm before toothed belt 90 completely fracture, prevent secondary failure, such as blade fragment caused by being broken as toothed belt 90
It splits, blade sweeps tower etc..
Self-test switch 12 is mainly used for cutting out in wire 91, makes resistance detector 11 to the survey in addition to tested toothed belt
It tries route and carries out self-test, guarantee that it is normal, eliminate the erroneous judgement introduced due to toothed belt detection device failure.
Embodiment two
As shown in figure 4, in the present embodiment, except the first end of toothed belt 90 is fixedly installed connector 20, toothed belt 90
Second end connection switching switch 30 except, other are the same as example 1, therefore repeat no more again.
In the present embodiment, the conducting probe 22 of connector 20 is correspondingly connected with the wire 91 of toothed belt 90, and is connected
At a node, switches switch 30 and switchably connect with wire 91, to control the wire 91 of the detection of resistance detector 11,
Realize the independent test to wire 91.
One end of resistance detector 11 is connect with switching switch 30, the node that the other end and connector 20 converge out connects
It connects.The wire 91 connecting with resistance detector 11 is controlled using switching switch 30, to carry out single detection to wire 91, this
Sample detection is conducive to determine the position of the wire 91 of fracture.
When detection, the control switching switch 30 of resistance detector 11, successively by 91 conduct of every one metal wire in toothed belt 90
Conducting wire is connect with resistance detector 11 respectively, and resistance detector 11 detects wire 91 by root, if certain one metal wire 91
Resistance value is more than predetermined value, then the control of resistance detector 11 trouble light is bright, then this wire 91 is broken, and resistance detector 11 will be former
The signal of barrier is transmitted to master control system, and control wind power generating set is shut down.
Toothed belt detection device of the invention has the effect that
The toothed belt detection device detects the resistance value of the wire of toothed belt, judges wire according to resistance value
On-off, such detection mode is simple, convenient and reduce detection difficulty；
The wire of toothed belt is connected as one whole, is detected quicker；
Toothed belt detection device is split type structure, and resistance detector, which is only connect with one end of toothed belt, can be realized inspection
It surveys, thus is conveniently installed in rotary part；
It can self-test, detect it is more reliable.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (7)
1. a kind of toothed belt detection device of the vane change device of wind power generating set, the toothed belt (90) is interior to be provided with a plurality of gold
Belong to silk (91), which is characterized in that the toothed belt detection device includes:
Resistance detector (11), the resistance detector (11) is electrically connected with the wire (91), and detects the wire
(91) resistance value judges the on-off of the wire (91) according to the resistance value；The toothed belt detection device further includes
Self-test switch (12), the self-test switch (12) is in parallel with the toothed belt (90), and controls whether the short circuit toothed belt
(90)；
Connector (20), the connector (20) are fixed at the first end of the toothed belt (90), and with the toothed belt
(90) each wire (91) converges to a node connect electrically conductively after；
Switching switch (30), the switching switch (30) are connected to the second ends of the toothed belt (90), and switchably with institute
Wire (91) connection is stated, one end of the resistance detector (11) switchs (30) with the switching and connect, the resistance detection
The Node connectedness of the other end of device (11) and the connector (20) convergence, switching switch (30) control are examined with the resistance
Survey the wire (91) of device (11) connection.
2. toothed belt detection device according to claim 1, which is characterized in that the connector (20) includes:
Pedestal (21), the pedestal (21) have the accommodation space for the end for accommodating the toothed belt (90)；
Multiple conducting probes (22), the multiple conducting probe (22) are fixed on the pedestal (21), and protrude into described
In accommodation space, a plurality of wire (91) of the multiple conducting probe (22) and the toothed belt (90) is correspondingly arranged and can lead
It connects electricly.
3. toothed belt detection device according to claim 2, which is characterized in that the pedestal (21) includes top board
(211) and the lower platen (212) that is interval in the top board (211) and is fixedly connected on the top board (211), on described
The tooth socket section (213) with the toothed belt (90) cooperation is provided on pressing plate (211) and/or the lower platen (212).
4. toothed belt detection device according to claim 2, which is characterized in that multiple conductive spies of the connector (20)
Needle (22) every two is one group, and every group of conducting probe (22) is by being conductively connected block (23) connection.
5. toothed belt detection device according to claim 1, which is characterized in that the toothed belt detection device further includes report
Alert device, the alarm are connect with the resistance detector (11), and are alarmed by the control of the resistance detector (11).
6. a kind of toothed belt detection method of the vane change device of wind power generating set, which is characterized in that for as claim 1 to
Toothed belt detection device described in any one of 5, the toothed belt detection method include the following steps:
The wire (91) of toothed belt (90) is connect with resistance detector (11)；
The resistance value that the wire (91) are powered and detected to the wire (91) of the toothed belt (90), according to the resistance
Value judges the on-off of the wire (91)；In the step for connecting the wire (91) of toothed belt (90) with resistance detector (11)
Closure self-test switch (12) is further comprised the steps of: before rapid, by the toothed belt (90) short circuit, self-test of powering, and according to self-test knot
The toothed belt (90) is connect by fruit control alarm with the resistance detector (11).
7. a kind of vane change device, which is characterized in that examined including toothed belt (90) and the toothed belt being connect with the toothed belt (90)
Device is surveyed, the toothed belt detection device is toothed belt detection device described in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901826.XA CN105424761B (en) | 2015-12-08 | 2015-12-08 | Toothed belt detection device and method and variable pitch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901826.XA CN105424761B (en) | 2015-12-08 | 2015-12-08 | Toothed belt detection device and method and variable pitch device |
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| Publication Number | Publication Date |
|---|---|
| CN105424761A CN105424761A (en) | 2016-03-23 |
| CN105424761B true CN105424761B (en) | 2019-01-29 |
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| CN201510901826.XA Active CN105424761B (en) | 2015-12-08 | 2015-12-08 | Toothed belt detection device and method and variable pitch device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107816415B (en) * | 2017-09-18 | 2019-04-12 | 新疆金风科技股份有限公司 | Toothed belt monitoring method and device, the pitch drive system of wind power generating set |
| CN107561126B (en) * | 2017-09-30 | 2024-09-10 | 万力轮胎股份有限公司 | Belted yarn leakage detection device |
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| CN105424761A (en) | 2016-03-23 |
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