CN207333521U - A kind of off-course brake friction disc wear indicates alarm system - Google Patents
A kind of off-course brake friction disc wear indicates alarm system Download PDFInfo
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- CN207333521U CN207333521U CN201721455205.4U CN201721455205U CN207333521U CN 207333521 U CN207333521 U CN 207333521U CN 201721455205 U CN201721455205 U CN 201721455205U CN 207333521 U CN207333521 U CN 207333521U
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- course brake
- brake friction
- feeler lever
- movable contact
- displacement
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Abstract
The utility model discloses a kind of off-course brake friction disc wear instruction alarm system, is included using scheme：Displacement switch, the displacement switch is installed on off-course brake housing, scalable feeler lever on the displacement switch is against in the steel back of off-course brake friction plate, with the abrasion of off-course brake friction plate, the scalable feeler lever gradually stretches out, the displacement of the scalable feeler lever drives the movement of movable contact inside displacement switch, makes being switched on or switched off for movable contact and fixed contact, so as to produce electric signal.Advantage is as follows：The abrasion condition of off-course brake friction plate can be detected automatically, and can remind staff in time.
Description
Technical field
It the utility model is related to a kind of off-course brake friction disc wear instruction alarm system.
Background technology
At present, the yaw system of Large-scale Wind Turbines is mostly by electromechanical driving structure and hydraulic braking damping system two
Part forms.Wherein, the effect of electromechanical drive mechanism is the signal sent according to wind transducer, and driving wind power generating set is inclined
Boat, makes wind wheel face wind direction to catch wind energy to greatest extent.Hydraulic braking damping system includes hydraulic system and yaw is made
Dynamic device.When wind power generating set face wind direction generates electricity, hydraulic system promotes off-course brake total head to brake, and makes wind-driven generator
Group stablizes face wind direction generator operation.When wind direction changes, unit starting yaw, hydraulic system pressure decline at this time, production
The raw damping between the friction plate of off-course brake and brake disc reduces, it is ensured that wind power generating set stably yaws.
Since friction caused by yaw can cause the friction plate of off-course brake abrasion to a certain extent, work as
The friction disc wear of off-course brake to a certain extent when, maintenance personnel should be replaced in time.Otherwise the friction of friction plate
After material mill is most, its steel back can directly be contacted with yaw brake disc, cause brake disc surface to fray.
The off-course brake quantity of single wind generator group is usually between 6-10.Due to narrow space, brake
Dismounting is more troublesome, manually observes when relying primarily on Maintenance and Repair at present and judges by rule of thumb or manual measurement friction plate remains
Remaining thickness.Its there are the problem of mainly by it is following some：
1. check that off-course brake friction disc wear situation has to climbing wind turbine.
2. a wind field wind turbine quantity is more, workload is larger during inspection.
3. by the observation frequency detection state of wear of staff, if friction disc wear is not found in time to during the limit
Brake disc will be caused to damage.
The content of the invention
The purpose of the utility model is to overcome the defects of the prior art, there is provided a kind of off-course brake of economic and reliable rubs
Pad abrasion instruction alarm system.
To achieve the above object, the utility model uses such scheme, including：
Displacement switch, the displacement switch are installed on off-course brake housing, the scalable spy on the displacement switch
Bar is against in the steel back of off-course brake friction plate, and with the abrasion of off-course brake friction plate, the scalable feeler lever is gradual
Stretch out, the displacement of the scalable feeler lever drives the movement of movable contact inside displacement switch, makes the connection of movable contact and fixed contact
Or disconnect, so as to produce electric signal；
Control unit, the electric signal decision threshold produced according to the displacement switch, judges current off-course brake friction
The residing section of pad wear amount, different instructions is sent according to the residing state of section of off-course brake friction disc wear amount.
The off-course brake friction disc wear instruction alarm system, it is characterised in that：The control unit integrates
In fan engine room switch board.
The off-course brake friction disc wear instruction alarm system, it is characterised in that：In the displacement switch at least
Equipped with two fixed contacts.
The off-course brake friction disc wear instruction alarm system, it is characterised in that：The displacement switch includes electricity
Sub- storehouse, spring, baffle, scalable feeler lever, are equipped with a movable contact and two fixed contacts in the electronics storehouse, the movable contact with
Scalable feeler lever connection, the displacement energy of the scalable feeler lever make the connection of movable contact and fixed contact and separate.
The off-course brake friction disc wear instruction alarm system, it is characterised in that：The fixed contact is respectively in institute
State when off-course brake friction plate residual thickness is 3mm, 1mm and movable contact is connected.
The off-course brake friction disc wear instruction alarm system advantage of the utility model is as follows：Yaw can be detected automatically
The abrasion condition of brake bush, and staff can be reminded in time.
Brief description of the drawings
Fig. 1 is off-course brake and the schematic diagram of switch board position in the utility model wind power generating set；
Fig. 2 is the sectional view of the utility model displacement switch；
Fig. 3 is the scheme of installation of the utility model displacement switch；
Fig. 4 is view of the utility model displacement switch in a alarm points；
Fig. 5 is view of the utility model displacement switch in b alarm points.
In figure, 1. 2. 3. 4. 5. 6. represent that off-course brake, 1- off-course brakes housing, the 2- control of diverse location are single
Member, 21- steel backs, 22- off-course brakes friction plate, 3- yaw brake discs, 51- electronics storehouse, 52- springs, 53- baffles, 54- can stretch
Contracting feeler lever, 55- plugs.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the type wind power generating set shares six off-course brakes.All off-course brakes during due to yaw
Work is simultaneously participated in, and is rotated around the yaw brake disc center of circle, therefore can roughly think all off-course brake frictions
The abrasion condition of piece is identical.When the off-course brake for being mounted with off-course brake friction disc wear instruction alarm system is quoted
During yaw friction disc wear warning, that is, all yaw friction plates for representing this unit need to change.For the ease of wiring, choosing
Select 1. off-course brake friction disc wear instruction alarm system.
The off-course brake friction disc wear instruction alarm system includes：Displacement switch and control unit 2.The displacement
Switch is installed on off-course brake housing 1, and the scalable feeler lever 54 on the displacement switch is against off-course brake friction plate
In 22 steel back 21, with the abrasion of off-course brake friction plate, the scalable feeler lever gradually stretches out, the scalable feeler lever
Displacement drive the movement of movable contact 5 inside displacement switch, make being switched on or switched off for movable contact 5 and fixed contact, so as to produce electricity
Signal.Described control unit 2, the electric signal decision threshold produced according to the displacement switch, judges that current off-course brake rubs
The residing section of pad wear extent, different instructions is sent according to the residing state of section of off-course brake friction disc wear amount,
The control unit is integrated in fan engine room switch board.The control unit 2 uses PLC controller.The PLC controls
The implementation of device is known technology, and this will not be repeated here.
The electric signal produced according to displacement switch（Wear signal）Judge the institute of current off-course brake friction disc wear amount
Locate section, different instructions is sent according to the residing state of section of off-course brake friction disc wear amount.
The displacement switch 5 includes electronics storehouse 51, spring 52, baffle 53, feeler lever 54 and aviation plug as shown in Figure 2-5
55.There are 1 movable contact and 2 fixed contacts inside electronics storehouse 51, movable contact is connected with feeler lever, the change meeting of the outreach of feeler lever
Cause the connection and separation of movable contact and fixed contact.The fixed contact includes the 1st fixed contact 6, the 2nd fixed contact 7, and feeler lever 54 reaches
During a alarm point positions, movable contact is connected with the 1st fixed contact 6, and when feeler lever 54 reaches b alarm point positions, movable contact and the 2nd touches calmly
Point 7 is connected.
Further, shown displacement switch 5 is installed on off-course brake housing.Displacement switch 5 is after installing, bullet
Spring 52 is in compressive state, and feeler lever is against in the steel back 21 of off-course brake friction plate 22 all the time.Off-course brake friction plate 22
Can gradually it be thinned at work, feeler lever 51 will extend under the action of 52 restoring force of spring.Alarm when feeler lever is gradually reached up to a
When at point, one group of electric signal is sent to control unit, and control unit gives a warning instruction.Alarm when feeler lever is gradually reached up to b
When at point, send another group of electric signal and send halt instruction to control unit, control unit.Warning order sends the live people of prompting
Member carries out the corresponding preparation for replacing material and instrument, and halt command will protect yaw brake disc to be not subjected to fray.
Further, the fixed contact is touched when the residual thickness of off-course brake friction plate is 3mm or 1mm with dynamic respectively
Point is connected.I.e.：When feeler lever is reached at a alarm points, the residual thickness of off-course brake friction plate is 3mm；Feeler lever reaches b alarm points
During place, the residual thickness of off-course brake friction plate is 1mm.
It is upper described, limitation in any form is not done to the utility model, although the present invention is with preferable case study on implementation
Disclose as above, but be not limited to the present invention, any person skilled in the art, is not departing from the technology of the present invention side
In the range of case, when structure and technology contents using the disclosure above make a little change or are modified to the equivalent of equivalent variations
Case study on implementation, but every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to above implementation case
Any simple modification, equivalent change and modification that example is made, still belongs to technical solution of the present invention scope.
Claims (4)
1. a kind of off-course brake friction disc wear indicates alarm system, it is characterised in that including：
Displacement switch, the displacement switch are installed on off-course brake housing, and the scalable feeler lever on the displacement switch supports
In the steel back of off-course brake friction plate, with the abrasion of off-course brake friction plate, the scalable feeler lever gradually stretches out,
The displacement of the scalable feeler lever drives the movement of movable contact inside displacement switch, and make movable contact and fixed contact connects on-off
Open, so as to produce electric signal；
Control unit, the electric signal decision threshold produced according to the displacement switch, judges current off-course brake friction plate mill
The residing section of damage amount, different instructions is sent according to the residing state of section of off-course brake friction disc wear amount.
2. off-course brake friction disc wear according to claim 1 indicates alarm system, it is characterised in that：The control
Unit processed is integrated in fan engine room switch board.
3. off-course brake friction disc wear according to claim 1 indicates alarm system, it is characterised in that：The displacement
Switch includes electronics storehouse, spring, baffle, scalable feeler lever, and a movable contact and two fixed contacts, institute are equipped with the electronics storehouse
State movable contact to be connected with scalable feeler lever, the displacement energy of the scalable feeler lever makes the connection of movable contact and fixed contact and separates.
4. off-course brake friction disc wear according to claim 3 indicates alarm system, it is characterised in that：It is described fixed tactile
Point is connected when the residual thickness of off-course brake friction plate is 3mm or 1mm with movable contact respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721455205.4U CN207333521U (en) | 2017-11-03 | 2017-11-03 | A kind of off-course brake friction disc wear indicates alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721455205.4U CN207333521U (en) | 2017-11-03 | 2017-11-03 | A kind of off-course brake friction disc wear indicates alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333521U true CN207333521U (en) | 2018-05-08 |
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ID=62364195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721455205.4U Active CN207333521U (en) | 2017-11-03 | 2017-11-03 | A kind of off-course brake friction disc wear indicates alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333521U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530251A (en) * | 2019-08-22 | 2019-12-03 | 射阳远景能源科技有限公司 | A kind of device and monitoring method of the thickness monitoring friction plate |
| CN111562104A (en) * | 2020-04-23 | 2020-08-21 | 广东水电二局股份有限公司 | Detection and maintenance method for yaw hydraulic caliper disc brake |
| CN112628311A (en) * | 2020-12-17 | 2021-04-09 | 山西江淮重工有限责任公司 | Yaw brake |
| CN112741437A (en) * | 2021-01-13 | 2021-05-04 | 淄博职业学院 | Psychological health degree evaluation test auxiliary device |
-
2017
- 2017-11-03 CN CN201721455205.4U patent/CN207333521U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110530251A (en) * | 2019-08-22 | 2019-12-03 | 射阳远景能源科技有限公司 | A kind of device and monitoring method of the thickness monitoring friction plate |
| CN111562104A (en) * | 2020-04-23 | 2020-08-21 | 广东水电二局股份有限公司 | Detection and maintenance method for yaw hydraulic caliper disc brake |
| CN112628311A (en) * | 2020-12-17 | 2021-04-09 | 山西江淮重工有限责任公司 | Yaw brake |
| CN112628311B (en) * | 2020-12-17 | 2023-01-03 | 山西江淮重工有限责任公司 | Yaw brake |
| CN112741437A (en) * | 2021-01-13 | 2021-05-04 | 淄博职业学院 | Psychological health degree evaluation test auxiliary device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230908 Granted publication date: 20180508 |
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