CN220956554U - Fan yaw brake with friction plate abrasion monitoring function and monitoring system thereof - Google Patents
Fan yaw brake with friction plate abrasion monitoring function and monitoring system thereof Download PDFInfo
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- CN220956554U CN220956554U CN202322878623.6U CN202322878623U CN220956554U CN 220956554 U CN220956554 U CN 220956554U CN 202322878623 U CN202322878623 U CN 202322878623U CN 220956554 U CN220956554 U CN 220956554U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 48
- 238000005299 abrasion Methods 0.000 title claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model relates to a fan yaw brake with friction plate abrasion monitoring function and a monitoring system thereof, comprising: yaw gear ring; the yaw caliper comprises an insulation friction plate, wherein the insulation friction plate is abutted with the yaw gear ring, and a plurality of groups of double-ended wires are buried in the insulation friction plate in the thickness direction; the power supply is respectively connected with each group of double-ended wires to form a closed loop; and the current induction switch is sleeved on the double-end lead. Compared with the prior art, the utility model has the advantages that the plurality of groups of double-ended wires are buried in the thickness direction of the friction plate, the current flows in the wires by using the power supply, the current is monitored by using the current induction switch, when the wires at one end of the friction plate in a certain thickness are broken by grinding, the wires are disconnected, the current induction switch can detect the current reduction or return to zero, so that the abrasion condition of the friction plate can be determined, the service life of the friction plate can be conveniently and accurately monitored, and the signals are transmitted to appointed persons or equipment after being processed by the wireless module.
Description
Technical Field
The utility model relates to the technical field of yaw brakes, in particular to a fan yaw brake with a friction plate abrasion monitoring function and a monitoring system thereof.
Background
Yaw brakes are typically used to ensure a smooth nacelle rotation when it is windy, and a locking of the nacelle position after windy is completed.
At present, a field person judges whether a friction plate of a caliper is excessively worn or not by a non-contact sensor such as a periodic indirect measurement mode or laser/eddy current, but the effect is poor. The measurement error of the personnel in a periodic indirect measurement mode is large, and the timeliness is poor; the installation of the non-contact sensor not only requires larger installation space and has higher cost, but also causes false alarm/missing alarm due to the interference of grease/friction powder/metal objects; the lack of the ability to detect the wear state of the caliper friction plate presents two problems:
(1) Excessive maintenance/replacement at high frequencies can lead to increased labor and friction plate material costs;
(2) The low frequency of untimely maintenance/replacement results in reduced braking capability and even excessive wear of the caliper friction plates results in damage to the yaw ring gear (bearing).
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a yaw brake of a wind driven generator with a caliper monitoring function and a monitoring system so as to conveniently know the abrasion condition of friction plates in a yaw caliper.
The aim of the utility model can be achieved by the following technical scheme:
in one aspect of the present utility model, there is provided a fan yaw brake having a friction plate wear monitoring function, comprising:
yaw gear ring;
The yaw caliper comprises an insulation friction plate and the yaw gear ring, wherein a plurality of groups of double-ended wires are buried in the insulation friction plate in the thickness direction;
the power supply is respectively connected with each group of double-ended wires to form a closed loop;
and the current induction switch is sleeved on the double-end lead.
As a preferable technical solution, the yaw gear ring comprises a plurality of yaw calipers, and the yaw calipers are equally spaced in the circumferential direction of the yaw gear ring.
As the preferable technical scheme, the multiple groups of double-ended wires are respectively buried at different thickness positions of the insulating friction plates of the multiple different yaw calipers.
As a preferable technical scheme, the part of the double-ended lead embedded in the insulating friction plate is U-shaped.
As a preferable technical scheme, the current sensing switch comprises a hall sensor and a relay.
As a preferred technical scheme, the method further comprises:
The audible and visual alarm comprises at least one of a buzzer, a loudspeaker and a light emitting device, and is connected with the current induction switch.
As a preferable technical scheme, the double-ended wire adopts an insulated copper wire.
In another aspect of the present utility model, there is provided a monitoring system having a friction plate wear monitoring function, comprising:
The yaw brake is the fan yaw brake with the friction plate abrasion monitoring function;
And the 3G/4G/5G module is electrically connected with the current induction switch in the yaw brake.
As a preferable technical scheme, the 3G/4G/5G module comprises a 3G/4G/5G chip and a film antenna.
As a preferable technical scheme, the 3G/4G/5G module is connected with the current induction switch through a main control chip.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The monitoring is convenient: according to the application, a plurality of groups of double-ended wires are buried in the thickness direction of the friction plate, the current flows through the wires by using a power supply, and the current is monitored by using the current induction switch, when the wires of the friction plate on a certain thickness are ground, the wires are disconnected, and the current induction switch can detect that the current is reduced or returned to zero, so that the abrasion condition of the friction plate can be determined, and the monitoring of the friction plate is facilitated.
(2) The friction plate is convenient to replace: the application adopts the concept of non-contact measurement current to determine the abrasion condition of the friction plate, and when the friction plate is replaced, compared with the scheme of measuring voltage, the non-contact measurement is more convenient because only a power supply line is connected.
(3) The remote monitoring is convenient: the application can feed back the current on-off of the double-ended lead to the far end in a wireless mode by arranging the 3G/4G/5G module, thereby being convenient for monitoring.
Drawings
FIG. 1 is a schematic illustration of a wind turbine yaw brake in an embodiment;
FIG. 2 is a schematic diagram of a double-ended wire installation at a monitoring point of a friction plate in an embodiment;
figure 3 is a schematic diagram of a monitoring system with caliper monitoring function in an embodiment,
Wherein, 1, a yaw gear ring, 2, a yaw caliper, 3, an insulating friction plate, 4, a double-end wire, 5, a current induction switch, 6, yaw driving, 7, a main control chip, 8, 3G/4G/5G chips, 9 and a remote terminal.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
Example 1
In order to conveniently understand the abrasion condition of friction plates in a yaw caliper, the embodiment provides a yaw brake of a wind driven generator with a friction plate abrasion monitoring function, and referring to fig. 1, a main body of the yaw brake of the wind driven generator comprises a yaw gear ring 1, yaw calipers 2 and a yaw drive 6, wherein the yaw calipers 2 are divided into a plurality of parts, the yaw calipers 2 are arranged in the circumferential direction of the inner side of the yaw gear ring 1 at equal intervals, a yaw system is driven by the yaw drive 6, the yaw gear ring 1 is relatively static, the yaw drive 1 works after the system is specified, the yaw calipers 2 (comprising an insulating friction plate 3) are rotated, and the friction plates and the yaw gear ring relatively move.
Referring to fig. 2, a plurality of caliper monitoring points can be arranged in the insulating friction plate of a single part at different thicknesses, a U-shaped alarm wire is arranged in the friction plate at each caliper monitoring point, current exists in the alarm wire ensured by a power supply, the friction plate is arranged between the yaw caliper 2 and the yaw gear ring 1, and the relative movement of the insulating friction plate 3 and the yaw gear ring 1 realizes yaw braking, so that the thickness of the friction plate is continuously reduced.
The caliper monitoring points can be set according to the use requirements, for example, can be set at critical wear points, semi-wear points and the like. The calipers at different positions of the same fan can be provided with a plurality of friction plate monitoring points, and the friction plates are made of insulating materials and can be arranged at different friction plate thicknesses. And U-shaped alarm wires are arranged in the friction plates of each wear monitoring point, conductors are arranged inside the alarm wires, and the outer diameters of the alarm wires are sealed by insulating materials, and a positive electrode power supply and a negative electrode power supply are arranged inside the alarm wires.
When the surface of the friction plate has not reached the caliper monitoring point, the alarm line (i.e., wire) in the friction plate remains intact, with current present therein. When the worn surface reaches the caliper monitoring point, the wire is damaged by friction, and the current is reduced to be very small or no. Thus, by monitoring the current change in the wire, it can be determined whether the wire has worn out at the location.
In this embodiment, the wire is a small-diameter copper core wire with an insulating layer. Because the yaw gear ring of the fan is large in size and high in strength, the yaw system is not damaged due to abrasion of wires.
In order to conveniently monitor the current in the wires, the current sensing switch 6 is sleeved on the double-ended wires 4 to realize current monitoring. Specifically, the current sensing switch 6 includes a hall sensor for measuring the magnitude of the current in the wire and a relay configured to trigger the relay when the current is less than a preset value, changing the output level. Preferably, the negative electrode of the power supply is equipotential with the yaw caliper 2 and the yaw gear ring 1, and the current induction switch 6 is connected to a wire on one side of the negative electrode of the power supply.
In the embodiment, the current sensing switch 6 adopts a D360 or D366 current sensor, and is externally connected with an alarm at the COM end and the NC end, so that the alarm is triggered to prompt and alarm after the current is lower than a threshold value. The communication module (3G/4G/5G) is connected with the current induction switch 6 to form a series loop, and an alarm is sent out after an alarm line in the friction plate is ground off.
Example 2
Referring to fig. 3, on the basis of embodiment 1, this embodiment provides a monitoring system with friction plate wear monitoring function, including the wind-driven generator yaw brake in embodiment 1, the main control chip 7, level conversion chip and the communication module that are connected in order with yaw brake, the communication module adopts 4G module to realize in this embodiment, also can use other wireless transmission modules such as 3G module, 5G module, WIFI module, bluetooth module to replace.
In this embodiment, the master control chip is implemented by using an STM32 series chip, and the master control chip may be replaced by an already mature and widely applied MCU control module, a PLC industrial control module, etc. in the prior art, or other control modules capable of implementing a control function and suitable for controlling in this embodiment in the prior art may be all applied for purchasing. The 4G module is implemented using EC 20.
The NC or NO ends of the plurality of current sensing switches 6 are connected with the GPIO port of the main control chip 7, the TXD, RXD, GND port of the main control chip 7 is respectively connected with the RXD, TXD, GND port of the 4G chip 8 in the 4G module through a level conversion circuit, and the levels of the NC or NO ends of the current sensing switches 6 are wirelessly transmitted through the 4G module and displayed at the remote terminal 9 at the far end, so that remote monitoring is realized.
The level conversion circuit adopts a commercially available level conversion chip, and can also use a triode to perform level conversion.
According to the application, the current in the double-ended lead is monitored by arranging the current induction switch 6, so that the loss degree of the friction plate is conveniently monitored.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. A fan yaw brake with friction plate wear monitoring function, comprising:
a yaw gear ring (1);
The yaw caliper (2) comprises an insulation friction plate (3), wherein the insulation friction plate (3) is abutted with the yaw gear ring (1), and a plurality of groups of double-ended wires (4) are buried in the insulation friction plate (3) in the thickness direction;
the power supply is respectively connected with each group of double-ended wires (4) to form a closed loop;
And the current induction switch (5) is sleeved on the double-end lead (4).
2. A fan yaw brake with friction plate wear monitoring function according to claim 1, characterized by comprising a plurality of yaw calipers (2), the yaw calipers (2) being equally spaced in a circumferential direction inside the yaw ring gear (1).
3. A fan yaw brake with friction plate wear monitoring function according to claim 2, characterized in that the plurality of groups of double-ended wires (4) are respectively embedded in different thickness positions of the insulating friction plates (3) of a plurality of different yaw calipers (2).
4. A fan yaw brake having a friction plate wear monitoring function according to claim 1, wherein the portion of the double-ended conductor wire (4) buried in the insulating friction plate (3) is U-shaped.
5. A fan yaw brake with friction plate wear monitoring function according to claim 1, characterized in that the current sensing switch (5) comprises a hall sensor and a relay.
6. The fan yaw brake with friction plate wear monitoring function of claim 1, further comprising:
And the audible and visual alarm (6) comprises at least one of a buzzer, a loudspeaker and a light-emitting device, and is connected with the current induction switch (5).
7. A fan yaw brake with friction plate wear monitoring function according to claim 1, wherein the double-ended conductor (4) is a copper conductor with an insulating layer.
8. A monitoring system having friction plate wear monitoring function, comprising:
A yaw brake, which is a fan yaw brake having a friction plate wear monitoring function as described in any one of claims 1 to 7;
and the 3G/4G/5G module is electrically connected with the current induction switch (5) in the yaw brake.
9. The monitoring system with the friction plate wear monitoring function according to claim 8, wherein the 3G/4G/5G module comprises a 3G/4G/5G chip (8) and a film antenna.
10. The monitoring system with the friction plate abrasion monitoring function according to claim 8, wherein the 3G/4G/5G module is connected with the current induction switch (5) through a main control chip (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322878623.6U CN220956554U (en) | 2023-10-25 | 2023-10-25 | Fan yaw brake with friction plate abrasion monitoring function and monitoring system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322878623.6U CN220956554U (en) | 2023-10-25 | 2023-10-25 | Fan yaw brake with friction plate abrasion monitoring function and monitoring system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956554U true CN220956554U (en) | 2024-05-14 |
Family
ID=91007929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322878623.6U Active CN220956554U (en) | 2023-10-25 | 2023-10-25 | Fan yaw brake with friction plate abrasion monitoring function and monitoring system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956554U (en) |
-
2023
- 2023-10-25 CN CN202322878623.6U patent/CN220956554U/en active Active
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