CN205855257U - A kind of dragveyer chain rupture detection protection device - Google Patents
A kind of dragveyer chain rupture detection protection device Download PDFInfo
- Publication number
- CN205855257U CN205855257U CN201620812442.0U CN201620812442U CN205855257U CN 205855257 U CN205855257 U CN 205855257U CN 201620812442 U CN201620812442 U CN 201620812442U CN 205855257 U CN205855257 U CN 205855257U
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- China
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- detection
- test disks
- photoswitch
- protection device
- dragveyer
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Abstract
This utility model is a kind of dragveyer chain rupture detection protection device, including the detector unit being separately mounted in dragveyer chain carrying roller two ends rotating shaft, each detector unit is equipped with test disks, test disks is coaxially disposed with chain carrying roller rotating shaft, the edge of each test disks is provided with symmetrically arranged at least two detection breach, chain roller carrier shaft outside test disks puts equipped with detection support, equipped with the photoswitch coordinated with detection breach on detection support, photoswitch is connected with PLC by holding wire, PLC is connected with PC by communication cable.This utility model is coordinated with photoswitch by the detection breach in test disks and detects, interval sends pulse signal, because effective detecting distance of photoswitch is long, the card with test disks can be allowed it to and keep sufficiently long safe distance, thus avoid friction, make detection pulse signal reliable and stable, and improve the service life of detector unit.
Description
Technical field
This utility model relates to a kind of dragveyer chain rupture detection protection device, and the dragveyer of a kind of generating set breaks
Chain detection protection device.
Background technology
The monitoring mode of the normal operating conditions of the dragveyer in power plant is primarily to see it to be stopped or running.Prior art
In mainly employing ~ 220V Magnetic Induction formula proximity switch detect, effective detecting distance of Magnetic Induction formula proximity switch is only
Having 5-10mm, testing conditions is harsh, only has 2-3mm to adjust with tested card coverage, and proximity switch is often with tested
Survey disc face wiping to touch, cause proximity switch to damage, it is impossible to normal detection and reaction mechanical rotation information.Additionally classical signal processes
Unit is that relay is constituted.The input of pulse signal, the measurement of pulsed quantity, pulsed logic computing and judgement, and protection control
The output of signal is realized by relay.Loop is complicated, and trouble point is many, and reliability is low, easily causes chain rupture signal and sends out even by mistake
Refuse to send out, cause dragveyer false tripping or refuse to jump, device damage accident occurs.
Summary of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, it is provided that a kind of reasonable in design, inspection
Survey the convenient detection protection device of dragveyer chain rupture accurately.
Technical problem to be solved in the utility model is to be realized by following technical scheme, and this utility model is
A kind of dragveyer chain rupture detection protection device, is characterized in: include being separately mounted in dragveyer chain carrying roller two ends rotating shaft
Detector unit, each detector unit is equipped with test disks, and test disks is coaxially disposed with chain carrying roller rotating shaft, each detection circle
The edge of dish is provided with symmetrically arranged at least two detection breach, and the chain roller carrier shaft outside test disks puts equipped with detection
Support, equipped with the photoswitch coordinated with detection breach on detection support, photoswitch passes through holding wire and PLC phase
Even, PLC is connected with PC by communication cable.
Technical problem to be solved in the utility model can also be realized further by following technical scheme, with
In upper described dragveyer chain rupture detection protection device: equipped with two photoswitches being arranged side by side on each detection support.
Technical problem to be solved in the utility model can also be realized further by following technical scheme, with
In upper described dragveyer chain rupture detection protection device: the photoswitch distance away from test disks is less than 30mm.
Technical problem to be solved in the utility model can also be realized further by following technical scheme, with
In upper described dragveyer chain rupture detection protection device: width is test disks radius the 1/3 of described detection breach.
Technical problem to be solved in the utility model can also be realized further by following technical scheme, with
In upper described dragveyer chain rupture detection protection device: described detection breach is provided with 4 or 6, is respectively uniformly distributed in detection
On disk.
Compared with prior art, this utility model passes through to install detector unit in dragveyer chain carrying roller two ends rotating shaft,
And the test disks of detector unit is provided with detection breach, being detected by the photoswitch coordinated with it, interval sends
Pulse signal, because effective detecting distance of photoswitch is long, can allow it to the card with test disks and keep long enough
Safe distance, thus avoid friction, make detection pulse signal reliable and stable, and improve the service life of detector unit.
Processing detection data by PLC, quickly, reliable working performance is stable for its information processing rate.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of structural representation of detector unit.
Detailed description of the invention
Seeing figures.1.and.2, a kind of dragveyer chain rupture detection protection device, including being separately mounted to dragveyer chain carrying roller 1
Detector unit in the rotating shaft of two ends, each detector unit is equipped with test disks 2, and test disks 2 is coaxial with chain carrying roller 1 rotating shaft
Arranging, the diameter of test disks 2 is less than the diameter of the regulating wheel of homonymy chain carrying roller 1.The edge of each test disks 2 is provided with
Symmetrically arranged 4 detection breach 7,4 detection breach 7 are evenly distributed in test disks 2, and the width of detection breach 7 is inspection
Survey the 1/3 of disk 2 radius.
Equipped with detection support 5 on chain carrying roller 1 axle sleeve 3 outside test disks 2, equipped with being arranged side by side on detection support 5
Two photoswitches 4.Two photoswitches 4 coordinate with detection breach 7, and the photoswitch 4 distance away from test disks 2 is less than
Effective detecting distance of 30mm, i.e. photoswitch 4.Photoswitch 4 is connected with PLC 6 by holding wire, PLC 6
It is connected with PC by communication cable.
When dragveyer normally works, chain carrying roller 1 drives the test disks 2 of its both sides to rotate simultaneously, photoswitch 4 cycle
By detection breach 7 and test disks face, send the pulse letter of " 0 " and " 1 " respectively according to detection breach 7 and test disks face
Number, PLC 6 system-computed and the gap periods of watchdog pulse signal, pulse signals " 0 " " 1 " conversion judges, when
When dragveyer chain rupture stops, the pulse signal of photoswitch 4 will remain at " 0 " or " 1 " position, i.e. represent this photoswitch
4 detect dragveyer chain rupture, export chain rupture alarm signal, and cue detection notes abnormalities.When two, the same side photoswitch 4
Detect when chain rupture is reported to the police simultaneously, after logical judgment and a period of time time delay, PLC output chaser signal, drags for slag
Machine chaser, dragveyer chain rupture guard lamp is bright, thus realizes the real-time monitoring of the normal operating conditions to dragveyer, and alarm stops
Machine, it is to avoid failure propagation.
Claims (5)
1. a dragveyer chain rupture detection protection device, it is characterised in that: include being separately mounted to dragveyer chain carrying roller two ends
Detector unit in rotating shaft, each detector unit is equipped with test disks, and test disks is coaxially disposed, often with chain carrying roller rotating shaft
The edge of individual test disks is provided with symmetrically arranged at least two detection breach, and the chain roller carrier shaft outside test disks puts
Equipped with detection support, equipped with the photoswitch coordinated with detection breach on detection support, photoswitch is controlled with PLC by holding wire
Device processed is connected, and PLC is connected with PC by communication cable.
Dragveyer chain rupture the most according to claim 1 detection protection device, it is characterised in that: on each detection support equipped with
Two photoswitches being arranged side by side.
Dragveyer chain rupture the most according to claim 2 detection protection device, it is characterised in that: photoswitch is away from test disks
Distance less than 30mm.
Dragveyer chain rupture the most according to claim 1 detection protection device, it is characterised in that: the width of described detection breach
For test disks radius 1/3.
Dragveyer chain rupture the most according to claim 1 detection protection device, it is characterised in that: described detection breach is provided with 4
Individual or 6, it is respectively uniformly distributed in test disks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620812442.0U CN205855257U (en) | 2016-07-29 | 2016-07-29 | A kind of dragveyer chain rupture detection protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620812442.0U CN205855257U (en) | 2016-07-29 | 2016-07-29 | A kind of dragveyer chain rupture detection protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205855257U true CN205855257U (en) | 2017-01-04 |
Family
ID=57653935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620812442.0U Active CN205855257U (en) | 2016-07-29 | 2016-07-29 | A kind of dragveyer chain rupture detection protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205855257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726308A (en) * | 2017-09-29 | 2018-02-23 | 邯郸学院 | CFBB submerged slag conveyor chain rupture monitoring system |
| CN113680853A (en) * | 2021-07-18 | 2021-11-23 | 朱上河 | High-efficient coalignment of civil air defense door frame angle steel |
-
2016
- 2016-07-29 CN CN201620812442.0U patent/CN205855257U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726308A (en) * | 2017-09-29 | 2018-02-23 | 邯郸学院 | CFBB submerged slag conveyor chain rupture monitoring system |
| CN113680853A (en) * | 2021-07-18 | 2021-11-23 | 朱上河 | High-efficient coalignment of civil air defense door frame angle steel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |