CN205175949U - Tooth belt detection device and change oar device - Google Patents
Tooth belt detection device and change oar device Download PDFInfo
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- CN205175949U CN205175949U CN201521013075.XU CN201521013075U CN205175949U CN 205175949 U CN205175949 U CN 205175949U CN 201521013075 U CN201521013075 U CN 201521013075U CN 205175949 U CN205175949 U CN 205175949U
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- tinsel
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- 239000000523 sample Substances 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 15
- 230000004308 accommodation Effects 0.000 claims description 7
- 238000007689 inspection Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008439 repair process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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Abstract
The utility model provides a tooth belt detection device, change oar device. Be provided with an at least wire in the tooth belt, the tooth belt detection device include: power supply detected circuit, wire are connected in the power supply detected circuit and are constituted detection loop, and the power supply detected circuit is to the wire power supply and detect detection loop's break -make to judge the break -make of wire. This tooth belt detection device can in time discover the fracture of tooth belt, and the avoid accident takes place.
Description
Technical field
The utility model relates to wind power generating set security detection equipment field, particularly relates to a kind of cog belt pick-up unit, vane change device.
Background technology
Cog belt is the driving-belt of a kind of workplace with tooth-shape structure, and it utilizes band tooth and tooth mesh transmission to move force and motion.Cog belt, by the gearing as wind generating set pitch control system, compares the pitch-controlled system utilizing gear as gearing, and the advantage adopting the pitch-controlled system of cog belt is stable drive, noise is little, maintenance is simple, convenient and cost is lower.But the load-bearing capacity of cog belt is limited, when bearing that comparatively strong wind carries, easily rupture, if cog belt ruptures, then blade is under inertia effect, can, around pitch variable bearings rotation, cause blade to sweep the major accidents such as tower.
Current industry lacks the means of carrying out for a long time the on off operating mode of the pitch-controlled system internal tooth form band of wind power generating set, automatically monitoring.
Utility model content
Embodiment of the present utility model provides a kind of cog belt pick-up unit, vane change device, to solve in existing wind power generating set the equipment problem that causes security low not detecting cog belt fracture.
For achieving the above object, embodiment of the present utility model provides a kind of cog belt pick-up unit, at least one one metal wire is provided with in cog belt, cog belt pick-up unit comprises: for power detection circuit, tinsel is connected to and supplies in power detection circuit and form measure loop, power and detect the break-make of measure loop for power detection circuit, to judge break-make wiry.
Further, many one metal wires are provided with in cog belt, cog belt pick-up unit also comprises two connectors, two connectors are fixedly installed on the two ends of cog belt correspondingly, and can be connected conductively with the tinsel of cog belt, the tinsel of cog belt is connected into a conductor, be electrically connected with the two ends of conductor by two connectors for power detection circuit.
Further, be provided with many one metal wires in cog belt, cog belt pick-up unit also comprises: connector, and connector is fixedly installed on the first end of cog belt, and can be connected conductively with each tinsel of cog belt; Change-over switch, change-over switch is connected to the second end of cog belt, and be switchably connected correspondingly with tinsel, one end for power detection circuit is connected with change-over switch, the other end for power detection circuit is connected with connector, and the access that change-over switch controls in many one metal wires supplies power detection circuit.
Further, connector comprises: pedestal, and pedestal has the spatial accommodation of the end holding cog belt; Multiple conducting probe, multiple conducting probe is all fixedly installed on pedestal, and stretches in spatial accommodation, and each conducting probe and many one metal wires of cog belt arrange correspondingly and can be connected conductively.
Further, pedestal comprises top board and is interval in top board and is fixedly connected on the lower platen on top board, and top board and/or lower platen are provided with the teeth groove section coordinated with cog belt.
Further, every two of the conducting probe of connector is one group, often organizes conducting probe and is connected by conduction contiguous block.
Further, comprise for power detection circuit: controller, controller controls to power to the tinsel of cog belt, and judges the break-make wiry of cog belt; Self-test switch, self-test switch is in parallel with cog belt, and controls whether short circuit cog belt.
Further, also comprise detecting sensor for power detection circuit, detecting sensor is connected between controller and cog belt, and for detected temperatures and/or humidity.
Further, also comprise alarm for power detection circuit, alarm is connected with controller, and the control of controlled device is reported to the police.
According to another aspect of the present utility model, provide a kind of vane change device, the cog belt pick-up unit comprising cog belt and be connected with cog belt, cog belt pick-up unit is above-mentioned cog belt pick-up unit.
The cog belt pick-up unit of embodiment of the present utility model can detect the break-make wiry of cog belt, and then can detect cog belt and whether have fracture, and structure is simple, detects reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of cog belt;
Fig. 2 is the end to end structural representation of tinsel of cog belt;
Fig. 3 is the structural representation of the cog belt pick-up unit of the first embodiment of the present utility model;
Fig. 4 is the structural representation of the cog belt pick-up unit of the second embodiment of the present utility model;
Fig. 5 is the structural representation of the connector removal top board of the cog belt pick-up unit of the first embodiment of the present utility model;
Fig. 6 is the side view of the connector of the cog belt pick-up unit of the first embodiment of the present utility model.
Description of reference numerals:
10, for power detection circuit; 11, controller; 12, self-test switch; 13, detecting sensor; 20, connector; 21, pedestal; 211, top board; 212, lower platen; 213, teeth groove section; 214, bolt; 22, conducting probe; 23, conduction contiguous block; 30, change-over switch; 90, cog belt; 91, tinsel.
Embodiment
Below in conjunction with accompanying drawing, the cog belt pick-up unit of the utility model embodiment and method, wind power generating set are described in detail.
Embodiment one
As shown in Figure 1, the rubber that the cog belt 90 used in the vane change device of wind power generating set generally includes tinsel 91 and is wrapped in outside tinsel 91.The effect of the tinsel 91 in cog belt 90 is the intensity improving cog belt 90, prevents cog belt 90 from rupturing, and improves the serviceable life of cog belt 90.
In the present embodiment, utilize the conductive characteristic of tinsel 91 to detect tinsel 91 and whether rupture, if tinsel 91 ruptures, illustrate that cog belt 90 ruptures at least partly, need repair and replacement, realize the detection to cog belt 90 thus.
When detecting the tinsel 91 of cog belt 90, can detect separately every one metal wire 91, also all tinsels 91 successively head and the tail can be connected into a conductor (as shown in Figure 2) and detecting.
Certainly, cog belt pick-up unit of the present utility model can also be applied to the detection that other have driving-belt wiry.
As shown in Figure 3, according to embodiment of the present utility model, cog belt pick-up unit comprises for power detection circuit 10, during detection, tinsel 91 is connected to and supplies in power detection circuit 10 and form measure loop, by powering for power detection circuit 10 and detecting measure loop whether conducting, to judge the break-make of tinsel 91, can judge whether cog belt 90 ruptures according to the break-make situation of tinsel 91.(on-line monitoring refers to the monitoring periods according to agreement to adopt this cog belt pick-up unit can realize carrying out on-line monitoring to cog belt 90, regularly monitoring automatically), can detect at the initial stage that cog belt 90 damages, effectively prevent cog belt 90 from rupturing completely, and then avoid wind power generating set fault, reduce loss.
Technological thought of the present utility model is:
Tinsel 91 in cog belt 90 is used as wire, connects for power detection circuit 10, by being energized to tinsel 91 for power detection circuit 10, and judge the break-make of tinsel 91 (such as steel wire), and then judge the crack conditions of cog belt 90.If tinsel 91 ruptures, namely cog belt 90 ruptures, then the measure loop formed for power detection circuit 10 and tinsel 91 can not conducting; If tinsel 91 does not rupture, namely cog belt 90 does not rupture, then measure loop normally.
In the present embodiment, the many one metal wires 91 arranged in cog belt 90 are connected into a conductor, and measures.
Particularly, cog belt pick-up unit also comprises two connectors 20, two connectors 20 are fixedly installed on the two ends of cog belt 90 correspondingly, and can be connected conductively with the tinsel 91 of cog belt 90, so that the tinsel 91 of cog belt 90 head and the tail are connected into a conductor.(in the present embodiment, the two ends of conductor are all positioned at the side of cog belt 90, are therefore connected with conductor by a connector 20 for power detection circuit 10 to supply power detection circuit 10 to be electrically connected with the two ends of conductor by connector 20.If the two ends of conductor are positioned at the both sides of cog belt 90, be then connected with conductor by two connectors 20 for power detection circuit 10).Like this when detecting, powering get final product the break-make of tested conductor for power detection circuit 10, if tinsel 91 is without fracture, then conductor can normally be communicated with for power detection circuit 10; If any one fracture in tinsel 91, then conductor can be caused not to be communicated with, and the measure loop formed for power detection circuit 10 and conductor cannot conducting.
As shown in Figure 5 and Figure 6, connector 20 comprises pedestal 21 and multiple conducting probe 22.
Pedestal 21, for installing miscellaneous part such as conducting probe 22 grade, simultaneously for being fixedly connected with cog belt 90, to ensure that conducting probe 22 can reliably be connected with tinsel 91, and then ensures the reliability of detection.Pedestal 21 has the spatial accommodation of end holding cog belt 90, and cog belt 90 to stretch in this spatial accommodation and is fixed in pedestal 21.
Particularly, pedestal 21 comprises top board 211 and is interval in top board 211 and is fixedly connected on the lower platen 212 on top board 211.Being fastenedly connected by bolt 214 between top board 211 and lower platen 212, and cog belt 90 is clamped, when guaranteeing reliably to fix cog belt 90, avoiding destroying cog belt 90.
Certainly, in other embodiments, pedestal 21 can be other structures, as long as can reliably fix cog belt 90.
Preferably, top board 211 and/or lower platen 212 are provided with the teeth groove section 213 coordinated with cog belt 90.In cog belt 90 course of work, cog belt 90 needs to bear the power such as pretightning force and friction force, for preventing these pulling force from making cog belt 90 be separated with pedestal 21, on top board 211 and/or lower platen 212, thus arrange teeth groove section 213 can be engaged with the tooth of cog belt 90, improves connection reliability.In the present embodiment, lower platen 212 is provided with this teeth groove section 213.
Multiple conducting probe 22 is fixedly installed on the lower platen 212 of pedestal 21, and stretches in spatial accommodation, so that conducting probe 22 can be connected correspondingly with the tinsel 91 of cog belt 90.
In order to the tinsel 91 of cog belt 90 head and the tail being connected, every two of the conducting probe 22 of connector 20 is one group, often organizes conducting probe 22 and is connected by conduction contiguous block 23.Two one metal wires 91 in cog belt 90 can be coupled together like this, finally realize tinsel 91 head and the tail and be connected to become a conductor.
Shown in Figure 3, comprise controller 11, self-test switch 12 and detecting sensor 13 for power detection circuit 10.
Controller 11 is mainly used in judging whether tinsel 91 ruptures and receive and process the data (such as: the temperature and humidity in impeller) of other parts transmission.When testing, controller 11 controls to power to the tinsel 91 of cog belt 90, and judges the break-make of the tinsel 91 of cog belt 90.Preferably, controller 11 can adopt PLC (Programmable Logic Controller).Certainly, in other embodiments, controller 11 can be single-chip microcomputer or computing machine or other can realize controlling and the device of arbitration functions.
The effect of self-test switch 12 first detected cog belt pick-up unit before detecting cog belt 90, guaranteeing to detect cog belt 90 in the trouble-free situation of cog belt pick-up unit, to ensure to detect reliably.Self-test switch 12 is in parallel with cog belt 90, and controls whether short circuit cog belt 90.During self-inspection, closed by self-test switch 12, cog belt 90 is shorted, the self-inspection of cog belt pick-up unit, if self-inspection non-fault, is disconnected by self-test switch 12, is accessed by cog belt 90, detect it.Staff if self-inspection has fault, reports to the police, so that can keep in repair in time.
Preferably, detecting sensor 13 is connected between controller 11 and cog belt 90, and for the temperature that detects cog belt 90 place environment and/or humidity.To strengthen the function of cog belt pick-up unit.This detecting sensor 13 can be can the sensor of simultaneously detected temperatures and humidity, the sensor that also can be made up of temperature sensor and humidity sensor, also can only can detected temperatures or humidity.
Also comprise alarm (not drawing in figure) for power detection circuit 10, alarm is connected with controller 11, and the control of controlled device 11 is reported to the police.When the self-inspection of cog belt pick-up unit is out of order or is detected that tinsel 91 ruptures, controller 11 controls alarm equipment alarm, to notify that staff keeps in repair in time, to ensure security of operation.Alarm can be loudspeaker, warning lamp etc., and also can be the display screen be connected with controller 11, controller 11 controls display screen display alarm information and the temperature detected and/or humidity etc., so that staff checks.This alarm can be the alarm of wind power generating set, and need not arrange alarm separately.
According to another aspect of the present utility model, provide a kind of cog belt detection method, the method is detected cog belt by above-mentioned cog belt pick-up unit, and the method comprises the steps:
The tinsel 91 of cog belt 90 is accessed and supplies in power detection circuit 10 and form measure loop;
Tinsel 91 to cog belt 90 is powered and is judged the break-make of measure loop, to judge the break-make of tinsel 91.The break-make of tinsel 91 can be judged by the break-make of measure loop form for power detection circuit 10 and tinsel 91, and then the situation whether cog belt 90 exists cracking or rupture can be judged, this kind of detection method simple and fast and reliability is high.
Preferably, for ensureing detecting reliability, before being accessed by the tinsel 91 of cog belt 90 for the step in power detection circuit 10, also comprise step:
Closed self-test switch 12, by cog belt 90 short circuit, controller 11 is powered self-inspection;
Control report to the police or carry out next step according to self-detection result.Before carrying out tinsel 91 detection, carrying out self-inspection can ensure detecting reliability.
According to another aspect of the present utility model, provide a kind of vane change device, the cog belt pick-up unit that this wind power generating set comprises cog belt 90 and is connected with cog belt 90, this cog belt pick-up unit is above-mentioned cog belt pick-up unit.
The course of work adopting cog belt pick-up unit to detect cog belt 90 is as follows:
Connector 20 is fixedly connected on cog belt 90, all tinsels 91 in cog belt 90 to be connected to become a complete conductor.To be connected with connector 20 for power detection circuit 10, and make it be connected with tinsel 91, the part that tinsel 91 is become for power detection circuit as wire is connected with the detecting sensor 13 of controller 11 and detected temperatures and/or humidity.
The every 10s of controller 11 detects (second) break-make of a cog belt 90.Before detecting tinsel 91, closed self-test switch 12, by tinsel 91 short circuit, whether controller 11 controls cog belt pick-up unit self-inspection circuit normal, if circuit is normal, then carries out cog belt detection, if circuit is abnormal, stops cog belt detecting, and reports to the police.
After controller 11 self-inspection is normal, self-test switch 12 is closed, tinsel 91 is accessed, the output power supply signal of controller 11, judge circuit whether conducting, if conducting, then the connection of tinsel 91, namely cog belt is without crack conditions, the impeller wheel portion temperature detected and/or humidity is sent to the master control system of wind power generating set.If not conducting, then wire breakage, i.e. cog belt fracture, it is bright that controller 11 controls emergency light, and import fault-signal the master control system of wind power generating set into, controls wind power generating set stoppage protection.
This cog belt pick-up unit and the kinematic train of method to the rotary part of wind power generating set is adopted to monitor, can give the alarm before cog belt 90 ruptures completely, prevent from rupturing the secondary failure caused due to cog belt 90, as leaf destruction, blade sweeps tower etc.
Self-test switch 12 is mainly used in tinsel 91 to cut out from for power detection circuit 10, makes to carry out self-inspection for power detection circuit 10, ensures that it is normal, eliminate the erroneous judgement owing to introducing for power detection circuit 10 fault.
Embodiment two
As shown in Figure 4, in the present embodiment, the first end except cog belt 90 is fixedly installed connector 20, and the second end of cog belt 90 connects outside change-over switch 30, and other are all identical with embodiment one, therefore again repeat no more.
In the present embodiment, the conducting probe 22 of connector 20 is connected correspondingly with the tinsel 91 of cog belt 90, and connect into a node, change-over switch 30 is switchably connected correspondingly with tinsel 91, supply, in power detection circuit 10, to realize the independent test to tinsel 91 with the access controlled in all tinsels 91.It should be noted that, what change-over switch 30 herein was switchably connected with tinsel 91 is meant to, and change-over switch 30 can be connected with in all tinsels 91 as required, to be accessed by tinsel 91 in power detection circuit 10.
Be connected with change-over switch 30 one end for power detection circuit 10, the other end for power detection circuit 10 is connected with connector 20.Utilize change-over switch 30 to control the tinsel 91 of access for power detection circuit 10, to carry out single detection to tinsel 91, detect the position being conducive to determining the tinsel 91 ruptured like this.
During detection; controller 11 controls change-over switch 30; successively the every one metal wire 91 in cog belt 90 is accessed for power detection circuit 10 as wire respectively; if when accessing certain one metal wire 91; the trouble light of controller 11 is bright; then this tinsel 91 ruptures, and the signal of fault is passed to master control system by controller 11, controls wind power generating set and shuts down.
Cog belt pick-up unit of the present utility model has following effect:
This cog belt pick-up unit does not directly measure cog belt, but is converted into a circuit part, and multistage tinsel is linked to be one whole, carries out break-make detection as wire, simply, facilitates and reduces detection difficulty;
Cog belt pick-up unit is split type structure, is only connected with one end of cog belt and can realizes detecting, thus facilitate and install at rotary part for power detection circuit;
It can the temperature and humidity of additional testing impeller;
It can self-inspection, detects more reliable.
Above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (10)
1. a cog belt pick-up unit, is provided with at least one one metal wire (91), it is characterized in that in cog belt (90), described cog belt pick-up unit comprises:
For power detection circuit (10), described tinsel (91) is connected to described for forming measure loop in power detection circuit (10), the described power detection circuit (10) that supplies is powered and detects the break-make of described measure loop, to judge the break-make of described tinsel (91).
2. cog belt pick-up unit according to claim 1, it is characterized in that, many one metal wires (91) are provided with in described cog belt (90), described cog belt pick-up unit also comprises two connectors (20), described two connectors (20) are fixedly installed on the two ends of described cog belt (90) correspondingly, and can be connected conductively with the tinsel (91) of described cog belt (90), the tinsel (91) of described cog belt (90) is connected into a conductor, the described power detection circuit (10) that supplies is electrically connected with the two ends of described conductor by described connector (20).
3. cog belt pick-up unit according to claim 1, is characterized in that, is provided with many one metal wires (91) in described cog belt (90), and described cog belt pick-up unit also comprises:
Connector (20), described connector (20) is fixedly installed on the first end of described cog belt (90), and can be connected conductively with each tinsel (91) of described cog belt (90);
Change-over switch (30), described change-over switch (30) is connected to the second end of described cog belt (90), and be switchably connected correspondingly with described tinsel (91), described one end for power detection circuit (10) is connected with described change-over switch (30), the described other end for power detection circuit (10) is connected with described connector (20), and the access that described change-over switch (30) controls in described many one metal wires (91) is described for power detection circuit.
4. the cog belt pick-up unit according to Claims 2 or 3, is characterized in that, described connector (20) comprising:
Pedestal (21), described pedestal (21) has the spatial accommodation of the end holding described cog belt (90);
Multiple conducting probe (22), described multiple conducting probe (22) is all fixedly installed on described pedestal (21), and stretching in described spatial accommodation, each described conducting probe (22) and many one metal wires (91) of described cog belt (90) arrange correspondingly and can be connected conductively.
5. cog belt pick-up unit according to claim 4, it is characterized in that, described pedestal (21) comprises top board (211) and is interval in described top board (211) and is fixedly connected on the lower platen (212) on described top board (211), and described top board (211) and/or described lower platen (212) are provided with the teeth groove section (213) coordinated with described cog belt (90).
6. cog belt pick-up unit according to claim 4, it is characterized in that, every two of the conducting probe (22) of described connector (20) is one group, often organizes conducting probe (22) and is connected by conduction contiguous block (23).
7. cog belt pick-up unit according to claim 1, is characterized in that, the described power detection circuit (10) that supplies comprising:
Controller (11), described controller (11) controls to power to the tinsel (91) of described cog belt (90), and judges the break-make of the tinsel (91) of described cog belt (90);
Self-test switch (12), described self-test switch (12) is in parallel with described cog belt (90), and controls cog belt (90) described in whether short circuit.
8. cog belt pick-up unit according to claim 7, it is characterized in that, the described power detection circuit (10) that supplies also comprises detecting sensor (13), described detecting sensor (13) is connected between described controller (11) and described cog belt (90), and for detected temperatures and/or humidity.
9. cog belt pick-up unit according to claim 7, it is characterized in that, the described power detection circuit (10) that supplies also comprises alarm, and described alarm is connected with described controller (11), and reports to the police by the control of described controller (11).
10. a vane change device, is characterized in that, the cog belt pick-up unit comprising cog belt and be connected with described cog belt, the cog belt pick-up unit of described cog belt pick-up unit according to any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013075.XU CN205175949U (en) | 2015-12-08 | 2015-12-08 | Tooth belt detection device and change oar device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013075.XU CN205175949U (en) | 2015-12-08 | 2015-12-08 | Tooth belt detection device and change oar device |
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| Publication Number | Publication Date |
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| CN205175949U true CN205175949U (en) | 2016-04-20 |
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| CN201521013075.XU Active CN205175949U (en) | 2015-12-08 | 2015-12-08 | Tooth belt detection device and change oar device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424756A (en) * | 2015-12-08 | 2016-03-23 | 北京金风科创风电设备有限公司 | Toothed belt detection device and method and variable pitch device |
| CN111219301A (en) * | 2018-11-26 | 2020-06-02 | 吉林大学 | Monitoring and repairing device for fracture of blade connecting point of wind driven generator |
-
2015
- 2015-12-08 CN CN201521013075.XU patent/CN205175949U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424756A (en) * | 2015-12-08 | 2016-03-23 | 北京金风科创风电设备有限公司 | Toothed belt detection device and method and variable pitch device |
| CN105424756B (en) * | 2015-12-08 | 2019-02-15 | 北京金风科创风电设备有限公司 | Toothed belt detection device and method and variable pitch device |
| CN111219301A (en) * | 2018-11-26 | 2020-06-02 | 吉林大学 | Monitoring and repairing device for fracture of blade connecting point of wind driven generator |
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