CN110530251A - A kind of device and monitoring method of the thickness monitoring friction plate - Google Patents
A kind of device and monitoring method of the thickness monitoring friction plate Download PDFInfo
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- CN110530251A CN110530251A CN201910776568.5A CN201910776568A CN110530251A CN 110530251 A CN110530251 A CN 110530251A CN 201910776568 A CN201910776568 A CN 201910776568A CN 110530251 A CN110530251 A CN 110530251A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 230000000630 rising effect Effects 0.000 claims description 4
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 2
- 239000000306 component Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000003862 health status Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013558 reference substance Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
- G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The present invention relates to a kind of devices of thickness for monitoring friction plate, the device includes: first distance sensor, the tooth of its gear ring for being disposed at the component that can be rotated relative to yaw bearing and being aligned yaw bearing, the first distance sensor are configured as measurement first distance sensor to the distance of tooth；And controller, it is configured as determining the thickness of friction plate according to measured distance.The invention further relates to a kind of corresponding monitoring methods.By the device or this method, the state of friction plate can in real time, be reliably and precisely monitored, while yaw angle can also accurately be measured by the device or this method.
Description
Technical field
Present invention relates in general to wind power generation fields, in particular to a kind of device of thickness for monitoring friction plate.
Moreover, it relates to a kind of method for the thickness for monitoring friction plate.
Background technique
In recent years, clean energy resource field shows fast-developing trend.As the representative of clean energy resource, wind-driven generator
Using growing.The blade of wind-driven generator is the core component of wind-driven generator capture wind energy, and the yaw in cabin
Control system is the important component for adjusting the yaw angle of blade again, and health status is directly related to equipment safety and power generation effect
Rate.
Determine an important component of the health status of yaw control system be arranged on cabin part and yaw bearing it
Between friction plate because reliable opposite sliding between the two depends on the state of the friction plate.However, as blower is transported
Row and yaw number increase, and friction plate can be gradually worn out.Especially under severe wind regime, yaw system may slide and cause friction plate
Unstable wear.At the scene in O&M, fan safe and power generation performance are influenced because of friction plate excessive wear in order to prevent, is rubbed
The state of piece can be periodically by operation maintenance personnel site inspection.But the regular check of Field Force can not real-time judge friction plate
Abrasion state and automatic alarm, this may cause potential risks and loss.
Summary of the invention
The task of the present invention is provide the device and a kind of thickness for monitoring friction plate of a kind of thickness for monitoring friction plate
Method can in real time, reliably and precisely monitor the state of friction plate by the device or this method, while pass through the device
Or this method can also accurately measure yaw angle.
In the device that the first aspect of the present invention, foregoing task pass through a kind of thickness for monitoring friction plate, comprising:
First distance sensor is disposed at the component that can be rotated relative to yaw bearing and is directed at yaw bearing
Gear ring tooth, the first distance sensor be configured as measurement first distance sensor to tooth distance；And
Controller is configured as determining the thickness of friction plate according to measured distance.
It is provided in a preferred embodiment of the invention, the component that can be rotated relative to yaw bearing is cabin bottom
Plate, and controller is configured as that the thickness L of friction plate is determined according to the following equation:
L=H-H1-H2,
Wherein H is the distance of the gear ring of cabin floor to yaw bearing, and H1 is first distance sensor to cabin floor
Distance, and H2 is the distance of the tooth of gear ring of the measured first distance sensor to yaw bearing.
By the preferred embodiment, the thickness of friction plate can be simply determined, and since range sensor generates table
Show the pulse signal with each tooth distance, therefore the circumferential thick of entire friction plate can be determined according to the pulse signal
Degree, to be more accurately located the defect or weak part of friction plate.It should be noted here that range sensor can also be arranged in
It is other can relative to the gear ring of yaw bearing relatively rotate positions at, such as machinery space bulkhead, in the feelings being arranged at other positions
Under condition, fixed value H and H1 in the formula should also be as accordingly adjusting to obtain the thickness of friction plate.
It provides in another preferred embodiment of the invention, device further includes proximity sensor, is arranged such that approach
Sensor can measure the yaw circle number of yaw bearing rotation, and the controller is additionally configured to basis and is passed by first distance
The pulse number of pulse signal measured by sensor and the yaw circle number measured by proximity sensor determine yaw angle.It is logical
The preferred embodiment is crossed, can simply determine the yaw angle of cabin.
It provides in another preferred embodiment of the invention, proximity sensor is disposed in the brake below the gear ring of yaw bearing
At vehicle pincers, so that proximity sensor generates pulse signal when by specified bolt to record yaw circle number.Preferably by this
Scheme can simply determine yaw angle.It should be understood that proximity sensor can also be arranged at other positions, only
It can determine yaw circle number, wherein the reference substance of the pulse signal for the proximity sensor that sets out for example can be on gear ring or cabin
Any bump on bottom plate.Those skilled in the art is under the teachings of the present invention it is contemplated that such arrangement.
It is provided in another preferred embodiment of the invention, which further includes second distance sensor, is disposed in institute
State can relative to yaw bearing rotate component at and second distance sensor point distance measurement and first distance sensor survey
Away from point at a distance of n+0.5 tooth, wherein n is integer, and controller is additionally configured to according to as measured by first distance sensor
Pulse signal and the pulse signal as measured by second distance sensor determine yaw direction.It, can be with by the preferred embodiment
Simply determine yaw direction.Here, yaw direction include defined in it is positive and with it is positive opposite reversed.Second distance passes
The distance between point distance measurement and the point distance measurement of first distance sensor of sensor can be any+0.5 number of teeth of the number of teeth, so that
The impulse waveform of two range sensors is just staggered about half period, thus can simply determine yaw direction.In the present invention
In, " point distance measurement " refers to intersection point or subpoint of the piano wire of range sensor on the gear ring of yaw bearing.
In the second aspect of the present invention, foregoing task is solved by a kind of method of thickness for monitoring friction plate, the party
Method includes the following steps:
Receive the first pulse signal from first distance sensor, first pulse signal indicate first distance sensor with
The tooth distance of the gear ring of yaw bearing, wherein first distance sensor be disposed in can relative to yaw bearing rotate
At component and be aligned yaw bearing gear ring tooth, the first distance sensor be configured as measurement first distance sensor
To the distance of tooth；
The second pulse signal is received from proximity sensor, second pulse signal indicates the yaw circle of yaw bearing rotation
Number, wherein the proximity sensor is arranged such that proximity sensor can measure the yaw circle number of yaw bearing rotation；
Receive third pulse signal from second distance sensor, first pulse signal indicate second distance sensor with
The tooth distance of the gear ring of yaw bearing, wherein second distance sensor is disposed in and described can forward relative to yaw axis
At dynamic component and the point distance measurement of the point distance measurement of second distance sensor and first distance sensor is at a distance of n+0.5 tooth,
Middle n is integer；And
The thickness of friction plate, yaw angle are determined according to the first pulse signal, the second pulse signal and third pulse signal
Degree and/or yaw direction.
It is provided in a preferred embodiment of the invention, n=1.It, can be by the first and second distances by the preferred embodiment
Sensor arrangement obtain it is close to each other, consequently facilitating the accurate arrangement of sensor.
It provides in another preferred embodiment of the invention, the component that can be rotated relative to yaw bearing is cabin bottom
Plate, and determine that the thickness L of friction plate includes:
L=H-H1-H2,
Wherein H is the distance of the gear ring of cabin floor to yaw bearing, and H1 is first distance sensor to cabin floor
Distance, and H2 is the distance of the tooth of gear ring of the measured first distance sensor to yaw bearing.
It is provided in another preferred embodiment of the invention, yaw angle α is determined by following equation:
Wherein k is by the pulse number of the pulse signal of first distance sensor measurement, and N is the tooth of the gear ring of yaw bearing
Number, and Q is yaw circle number.
By the preferred embodiment, yaw angle can be simply and accurately determined.
It provides in another preferred embodiment of the invention, determines that yaw direction includes:
The variation of the second pulse signal is determined when the first pulse signal is high level；And
If the variation is rising edge, it is determined that yaw direction is forward direction, and if the variation is failing edge,
Determine that yaw direction is reversed.
By the preferred embodiment, yaw direction can be simply and accurately determined.
The present invention at least has following the utility model has the advantages that (1) is by the invention it is possible to simply and accurately determine friction plate
Thickness and yaw angle, wherein the circumferential thickness with a thickness of entire friction plate for the friction plate that the present invention measures, convenient for analysis
Entire friction plate to position defect or weak part, and due to when determining yaw angle using the tired of multi-turn number of gears
Product is as a result, yaw angle determined by therefore has biggish accuracy；(2) through the invention, it can also easily determine and lead
Boat direction；(3) the meter while present invention realizes multiple important parameters using the device of low cost, simple installation and calculating
It calculates, without carrying out larger improvement to existing blower fan structure, therefore is very suitable for being applied to existing blower.
Detailed description of the invention
With reference to specific embodiment, the present invention is further explained with reference to the accompanying drawing.
Fig. 1 shows the schematic diagram of the range sensor of the apparatus according to the invention；
Fig. 2 shows the schematic diagrames of the proximity sensor of the apparatus according to the invention；
Fig. 3 shows the schematic diagram of pulse signal according to the present invention；And
Fig. 4 shows process according to the method for the present invention.
Specific embodiment
It should be pointed out that each component in each attached drawing may be shown in which be exaggerated in order to illustrate, and it is not necessarily ratio
Example is correctly.In the drawings, identical appended drawing reference is equipped with to the identical component of identical or function.
In the present invention, unless otherwise indicated, " on being arranged in ... ", " being arranged in ... top " and " on being arranged in ... "
Do not exclude the case where there are intermediaries therebetween.
In the present invention, each embodiment is intended only to illustrate the solution of the present invention, and is understood not to restrictive.
In the present invention, unless otherwise indicated, quantifier "one", " one " and the scene for not excluding element.
It is also noted herein that in an embodiment of the present invention, for it is clear, for the sake of simplicity, might show only one
Sub-unit or component, but those skilled in the art are it is understood that under the teachings of the present invention, it can be according to concrete scene
Need to add required component or component.
It is also noted herein that within the scope of the invention, the wording such as " identical ", " equal ", " being equal to " are not meant to
The two numerical value is absolutely equal, but allows certain reasonable error, that is to say, that the wording also contemplated " substantially phase
Together ", " being essentially equal ", " being substantially equal to ".
In addition, the number of the step of each method of the invention limit the method step execute sequence.Unless special
It does not point out, various method steps can be executed with different order.
Fig. 1 shows the schematic diagram of the range sensor 101 of the apparatus according to the invention.
As shown in Figure 1, range sensor 101 is exemplarily installed on cabin floor 103, and range sensor 101
The tooth 104 being aligned on the gear ring 102 of yaw bearing, so that whenever tooth 104 and backlash fall into the ranging range of range sensor 101
When all measure range sensor 101 ranging face arrive respective teeth 104 and backlash distance, and with the rotation of gear ring 102 and
Generate cyclical signal, the i.e. pulse signal comprising multiple distances.The pulse signal is for example, see Fig. 3, wherein in Fig. 3,
Pulse signal A is the pulse signal that first distance sensor 101 measures, and pulse signal B is that second distance sensor (does not show
The point distance measurement of the pulse signal measured out), the point distance measurement of second distance sensor and first distance sensor at a distance of 1.5 teeth with
Determine yaw direction.In the present embodiment, pulse signal is square-wave signal, and medium wave peak indicates that backlash passes through range sensor
Signal when 101, and trough indicates signal of the tooth 104 by range sensor when.It should be pointed out that in the present embodiment, distance
Sensor 101 is arranged such that its piano wire is parallel to the axis of gear ring 102；And in another embodiment, range sensor
101 can be laid out such that its piano wire perpendicular to the axis of gear ring 102, and in this case, wave crest equally indicates backlash
Signal when by range sensor 101, and trough equally indicates signal of the tooth 104 by range sensor when.
According to the pulse signal, the thickness L of friction plate is determined according to the following equation in device:
L=H-H1-H2,
Wherein H is the distance of the gear ring of cabin floor to yaw bearing, and H1 is first distance sensor to cabin floor
Distance, and H2 is the distance of the tooth of gear ring of the measured first distance sensor to yaw bearing.H and H1 is to install
Measurable fixed value after range sensor.
It should be noted here that range sensor 101 can also be arranged in it is other can be relative to 102 phase of gear ring of yaw bearing
To the fixed value H and H1 at the position of rotation, on such as machinery space bulkhead, in the case where being arranged at other positions, in the formula
It should also be as accordingly adjusting to obtain the thickness of friction plate.
Fig. 2 shows the schematic diagrames of the proximity sensor 201 of the apparatus according to the invention.
As shown in Fig. 2, proximity sensor 201 is arranged in the braking clamp 203 below the gear ring of yaw bearing, wherein close to passing
Sensor 201 can generate pulse signal when close to bolt 202, and the pulse signal can indicate the circle number of ring gear against rotation.
In the present embodiment, yaw angle α is determined by following equation:
Wherein k is the pulse number of the pulse signal measured by first distance sensor 101, and N is the gear ring of yaw bearing
The number of teeth, and Q is the yaw circle number determined by the pulse signal of proximity sensor 201, wherein yaw circle number is not integer
Circle, score can be determined by the ratio of pulse number and the number of teeth.The number N of teeth of the gear ring of yaw bearing is fixed value,
Such as it can be counted by tooth, check technical manual to determine.
In another embodiment, also it can be stated that controller whenever receiving the pulse signal of proximity sensor by
The pulse number of the pulse signal of one range sensor 101 measurement is reset, and thus can determine yaw angle by following equation
α:
Wherein k is the pulse number of the pulse signal measured by first distance sensor 101, and N is the gear ring of yaw bearing
The number of teeth.
Generally for big Mw grades of Wind turbines, the yaw bearing number of teeth is more than 100, adopts this method the yaw angle measured
Error be less than 360/100=3.6 °, precision can meet wind turbine power generation and safety requirements well.
It should be noted here that although in the present embodiment, proximity sensor 201 is arranged at braking clamp 203, but at it
In its embodiment, proximity sensor can also be arranged at other positions, as long as can determine yaw circle number, wherein it is close to set out
The reference substance of the pulse signal of sensor for example can be any bump on gear ring or on cabin floor.The technology of this field
Personnel are under the teachings of the present invention it is contemplated that such arrangement.
Fig. 3 shows the schematic diagram of pulse signal according to the present invention.
In Fig. 3, pulse signal A is the pulse signal that first distance sensor 101 measures, and pulse signal B is second
The pulse signal of range sensor (not shown) measurement, the ranging of the point distance measurement and first distance sensor of second distance sensor
Point is at a distance of 1.5 teeth to determine yaw direction.It should be noted here that other distances be also it is conceivable, such as first distance pass
Sensor and second distance sensor can be laid out such that the point distance measurement and first distance sensor of second distance sensor
Point distance measurement is at a distance of n+0.5 tooth, and wherein n is integer.
Controller can determine yaw direction in the following way:
Firstly, determine the variation of the second pulse signal B when the first pulse signal A is high level, be rising edge still
Failing edge.If the variation is rising edge, it is determined that the yaw direction of cabin is direction that is positive, being demarcated, and such as
Variation described in fruit is failing edge, it is determined that the yaw direction of cabin be reversely, i.e. the contrary direction with what is demarcated.
Fig. 4 shows according to the method for the present invention 300 process.
In step 302, receive the first pulse signal from first distance sensor, first pulse signal indicate first away from
Tooth distance from sensor and the gear ring of yaw bearing, wherein be disposed in can be relative to yaw for first distance sensor
At the component of bearing rotation and be aligned yaw bearing gear ring tooth, the first distance sensor is configured as measurement first
Distance of the range sensor to tooth；
In step 304, the second pulse signal is received from proximity sensor, second pulse signal indicates that yaw axis is forwarded
Dynamic yaw circle number, wherein the proximity sensor is arranged such that proximity sensor can measure the inclined of yaw bearing rotation
Boat circle number；
In step 306, receive third pulse signal from second distance sensor, first pulse signal indicate second away from
Tooth distance from sensor and the gear ring of yaw bearing, wherein second distance sensor be disposed in it is described can be relative to
At the component of yaw bearing rotation and the point distance measurement of second distance sensor and the point distance measurement of first distance sensor are at a distance of n+
0.5 tooth, wherein n is integer；And
In step 308, the thickness of friction plate is determined according to the first pulse signal, the second pulse signal and third pulse signal
Degree, yaw angle and/or yaw direction.
The present invention at least has following the utility model has the advantages that (1) is by the invention it is possible to simply and accurately determine friction plate
Thickness and yaw angle, wherein the circumferential thickness with a thickness of entire friction plate for the friction plate that the present invention measures, convenient for analysis
Entire friction plate to position defect or weak part, and due to when determining yaw angle using the tired of multi-turn number of gears
Product is as a result, yaw angle determined by therefore has biggish accuracy；(2) through the invention, it can also easily determine and lead
Boat direction；(3) the meter while present invention realizes multiple important parameters using the device of low cost, simple installation and calculating
It calculates, without carrying out larger improvement to existing blower fan structure, therefore is very suitable for being applied to existing blower.
Although some embodiments of the present invention are described in present specification, those skilled in the art
Member is it is understood that these embodiments are merely possible to shown in example.Those skilled in the art under the teachings of the present invention may be used
To expect numerous variant schemes, alternative solution and improvement project without beyond the scope of this invention.The appended claims purport
It is limiting the scope of the invention, and is covering the method in the range of these claims itself and its equivalents and knot whereby
Structure.
Claims (10)
1. a kind of device for the thickness for monitoring friction plate, comprising:
First distance sensor is disposed at the component that can be rotated relative to yaw bearing and is aligned the tooth of yaw bearing
The tooth of circle, the first distance sensor are configured as measurement first distance sensor to the distance of tooth；And
Controller is configured as determining the thickness of friction plate according to measured distance.
2. the apparatus according to claim 1, wherein the component that can be rotated relative to yaw bearing is cabin floor, and
And controller is configured as that the thickness L of friction plate is determined according to the following equation:
L=H-H1-H2,
Wherein H is the distance of the gear ring of cabin floor to yaw bearing, and H1 is distance of the first distance sensor to cabin floor,
And H2 is the distance of the tooth of gear ring of the measured first distance sensor to yaw bearing.
3. the apparatus according to claim 1 further includes proximity sensor, it is arranged such that proximity sensor can be surveyed
The yaw circle number of yaw bearing rotation is measured, and the controller is additionally configured to according to as measured by first distance sensor
The pulse number of pulse signal and the yaw circle number measured by proximity sensor determine yaw angle.
4. the apparatus according to claim 1, wherein proximity sensor is disposed in the brake below the gear ring of yaw bearing
At pincers, so that proximity sensor generates pulse signal when by specified bolt to record yaw circle number.
5. the apparatus according to claim 1 further includes second distance sensor, be disposed in it is described can be relative to yaw
At the component of bearing rotation and the point distance measurement of the point distance measurement of second distance sensor and first distance sensor is at a distance of n+0.5
Tooth, wherein n is integer, and controller is additionally configured to according to the pulse signal as measured by first distance sensor and by the
Pulse signal measured by two range sensors determines yaw direction.
6. a kind of method for the thickness for monitoring friction plate, including the following steps:
The first pulse signal is received from first distance sensor, first pulse signal indicates first distance sensor and yaw
The tooth distance of the gear ring of bearing, wherein first distance sensor is disposed in the component that can be rotated relative to yaw bearing
Place and be aligned yaw bearing gear ring tooth, the first distance sensor is configured as measurement first distance sensor to tooth
Distance；
The second pulse signal is received from proximity sensor, second pulse signal indicates the yaw circle number of yaw bearing rotation,
Wherein the proximity sensor is arranged such that proximity sensor can measure the yaw circle number of yaw bearing rotation；
Third pulse signal is received from second distance sensor, first pulse signal indicates second distance sensor and yaw
The tooth distance of the gear ring of bearing, wherein second distance sensor is disposed in and described can rotate relative to yaw bearing
At component and the point distance measurement of the point distance measurement of second distance sensor and first distance sensor is at a distance of n+0.5 tooth, and wherein n is
Integer；And
According to the first pulse signal, the second pulse signal and third pulse signal determine the thickness of friction plate, yaw angle and/
Or yaw direction.
7. according to the method described in claim 6, wherein n=1.
8. according to the method described in claim 6, wherein the component that can be rotated relative to yaw bearing be cabin floor, and
And determine that the thickness L of friction plate includes:
L=H-H1-H2,
Wherein H is the distance of the gear ring of cabin floor to yaw bearing, and H1 is distance of the first distance sensor to cabin floor,
And H2 is the distance of the tooth of gear ring of the measured first distance sensor to yaw bearing.
9. according to the method described in claim 6, wherein determining yaw angle α by following equation:
Wherein k is by the pulse number of the pulse signal of first distance sensor measurement, and N is the number of teeth of the gear ring of yaw bearing,
And Q is yaw circle number.
10. according to the method described in claim 6, wherein determining that yaw direction includes:
The variation of the second pulse signal is determined when the first pulse signal is high level；And
If the variation is rising edge, it is determined that yaw direction is forward direction, and if the variation is failing edge, it is determined that
Yaw direction is reversed.
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| CN201910776568.5A CN110530251A (en) | 2019-08-22 | 2019-08-22 | A kind of device and monitoring method of the thickness monitoring friction plate |
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| CN201910776568.5A CN110530251A (en) | 2019-08-22 | 2019-08-22 | A kind of device and monitoring method of the thickness monitoring friction plate |
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| CN103470663A (en) * | 2013-09-11 | 2013-12-25 | 开天传动技术(上海)有限公司 | Wear sensor for friction plate of fan yaw brake |
| US20190048848A1 (en) * | 2016-02-12 | 2019-02-14 | Vestas Wind Systems A/S | Improvements relating to a yaw sensor for a wind turbine |
| CN105784716A (en) * | 2016-04-25 | 2016-07-20 | 苏州玖典智能科技有限公司 | Quality testing system for friction discs |
| CN105864326A (en) * | 2016-05-31 | 2016-08-17 | 安徽柳工起重机有限公司 | Online detection device for caliper disc brake friction plate |
| CN106052538A (en) * | 2016-06-23 | 2016-10-26 | 国家电网公司 | On-line state diagnosis device and method for water turbine unit shafting power system |
| CN109131343A (en) * | 2017-06-28 | 2019-01-04 | 长城汽车股份有限公司 | A kind of use state of friction plate determines method and system |
| CN207379859U (en) * | 2017-10-24 | 2018-05-18 | 青岛华瑞丰机械有限公司 | Wind power brake friction plate performance test apparatus |
| CN207333521U (en) * | 2017-11-03 | 2018-05-08 | 华仪风能有限公司 | A kind of off-course brake friction disc wear indicates alarm system |
| CN108562485A (en) * | 2018-04-16 | 2018-09-21 | 北京工业大学 | It is a kind of can control accurate flexbile gear radial-deformation fatigue wear test fixture and test method |
| CN109058334A (en) * | 2018-08-30 | 2018-12-21 | 华仪风能有限公司 | A kind of control method of wind generating set yaw brake bush wear monitoring |
| CN109631738A (en) * | 2018-12-20 | 2019-04-16 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of water lubriucated bearing water film thickness monitoring system and method |
| CN210773882U (en) * | 2019-08-22 | 2020-06-16 | 射阳远景能源科技有限公司 | Device for monitoring thickness of friction plate |
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