CN106829390B - A kind of drag conveyor broken chain detecting device and its method - Google Patents
A kind of drag conveyor broken chain detecting device and its method Download PDFInfo
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- CN106829390B CN106829390B CN201710212536.3A CN201710212536A CN106829390B CN 106829390 B CN106829390 B CN 106829390B CN 201710212536 A CN201710212536 A CN 201710212536A CN 106829390 B CN106829390 B CN 106829390B
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- Prior art keywords
- infrared
- scraper plate
- photoresistor
- light emission
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/06—Control devices, e.g. for safety, warning or fault-correcting interrupting the drive in case of driving element breakage; Braking or stopping loose load-carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/20—Traction chains, ropes, or cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0275—Damage on the load carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
- B65G2203/044—Optical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/40—Safety features of loads, equipment or persons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
Abstract
A kind of drag conveyor broken chain detecting device, comprising: the equal scraper plate of headstock, lead-over groove, medial launder, several spacing, chain；Infrared photoresistor device, infrared light emission lamp, current sensor, CPU processor；The current sense input is series in infrared photoresistor composition circuit, and output end is connected to the CPU processor；The CPU processor includes: that signal knowledge takes unit, the first judging unit, timing unit, second judgment unit；First judging unit compares same scraper plate and whether is less than preset time value by the time difference of infrared photoresistor；Whether the second judgment unit, any two adjacent panels for comparing the timing unit record exceed the average value that adjacent scraper plate passes through infrared photoresistor by the duration of infrared photoresistor.The present invention carries out the chain rupture detection of chain in terms of two, further improves the reliability of chain chain rupture detection by above-mentioned setting.
Description
Technical field
The present invention relates to Coal Transportation fields, in particular to drag conveyor broken chain detecting device and its method.
Background technique
Drag conveyor, coalcutter and hydraulic support are that capital equipment " three machines " Collaborative Control of fully-mechanized mining working is fully mechanized mining
The key technology of automation.Critical equipment of the drag conveyor as fully-mechanized mining working mechanical coal mining carries transporting coal, is to adopt
Coal machine provides running track and provides the vital task of passage fulcrum, its performance, life and reliability system for hydraulic support
The about normal performance of other capacities of equipment determines the production capacity and economic benefit of the exploitation of high-yield and high-efficiency fully-mechanized mining working.
The working principle of drag conveyor determines that it is subjected to tension and compression, local buckling, time-varying load and impact etc. in the process of running
Effect, severe working environment makes its critical component corrosion phenomenon serious, easily generation chain rupture accident.Once chain rupture occurs
Accident, not only influences the normal production of coal working face, and causes grave danger to along Workers life security.Cause
This prevents casualties in order to avoid chain rupture causes drag conveyor to damage, and carries out timely and effectively to drag conveyor chain rupture
Detection has important practical significance.
The chain rupture of double chain conveyor is detected at present, mostly uses the form of approach switch, such as publication number
For the patent document of 201120338694 entitled " a kind of chain breaking protection device of scraper conveyor ", a kind of disclosed scraper plate is defeated
Send machine chain breakage protection device, working principle is, scraping board ends setting inductive switch, when inductive switch approach or arrive at it is each
The record at time point is carried out when point position, whether the time point that the inductive switch response of board ends is scraped in comparison is Huo Zhe simultaneously
In preset time range, if simultaneously or when two time differences are less than preset threshold, then determine that there is no chain rupture situations；
Otherwise chain rupture situation occurs.For the detection mode of this drag conveyor chain rupture, its shortcoming is that, approach switch it is corresponding
Distance and respective range error in precision are larger, so that in the actual use process, may cause erroneous judgement；In addition,
It is only detected by the gradient of single scraper plate, may cause the inaccuracy of detection, or disconnected situation of failing to judge.
Summary of the invention
Technical problem to be solved by the present invention lies in prior art defect is overcome, a kind of drag conveyor chain rupture inspection is provided
Survey devices and methods therefor.
In order to solve the above technical problem, the present invention provides drag conveyor broken chain detecting device, comprising: headstock,
The equal scraper plate of lead-over groove, medial launder, several spacing, chain, infrared photoresistor device, infrared light emission lamp, current sense
Device, CPU processor；Wherein, the headstock is fixedly mounted on the transition front of the slot；The lead-over groove is fixedly mounted on described
Between medial launder and the headstock；The scraper plate is fixedly mounted on chain；The infrared photoresistor device is symmetrically fixed
In on the side wall of headstock two sides；The infrared light emission lamp is mounted on the both ends of the scraper plate；The current sense input
It is series in infrared photoresistor device composition circuit, output end is connected to the CPU processor；The CPU processing
Device includes: that signal knowledge takes unit, the first judging unit, timing unit, second judgment unit；Wherein, the signal knowledge takes unit
For knowing the size of current in the infrared photoresistor device for taking the current sensor to sense in real time composition circuit；Described
Whether one judging unit is less than preset time value by the time difference of infrared photoresistor device for comparing same scraper plate；Institute
Timing unit is stated, the duration of infrared photoresistor device is passed through for the adjacent scraper plate of timing any two；Second judgement is single
Whether member, the adjacent scraper plate of any two for comparing the timing unit record surpass by the duration of infrared photoresistor device
Adjacent scraper plate passes through the average value of infrared photoresistor device out.
As a kind of preferred embodiment of the invention, the infrared photoresistor device includes: mounting bracket, infrared photosensitive electricity
Resistance；The mounting bracket includes: support end, installation end；Wherein, described support end one end is mounted by means of bolts on headstock
On side wall, the other end is provided with annulus mounting hole；The installation end includes: mounting base end, connecting pin；Wherein, the connecting pin
It is bolted to connection with the annulus mounting hole of the support end；The mounting base end is provided with infrared photoresistor installation
Hole, outer snap ring；The infrared photoresistor includes: resistor main body, outer package elastic layer.
As a kind of preferred embodiment of the invention, the infrared light emission lamp includes: lamp ontology, resilient mount；It is described
It scrapes board ends and is provided with mounting hole；The mounting hole includes: hole body, tempering glass lid, installation snap ring；Wherein, on the hole body
Port inner ring surface is provided with tempered glass installation detent, and port peripheral is provided with installation snap ring installation threaded hole thereon；The steel
Change glass cover lower end surface to be fixed in the tempered glass installation detent of the hole body upper port inner ring surface setting, upper surface is fixed on
On the installation snap ring.
As a kind of preferred embodiment of the invention, the infrared light emission lamp further include: inductive switch, the inductive switch
It is series at infrared light emission lamp；Inductive transmitter is additionally provided on the lead-over groove chute steel.Described in being moved to when the scraper plate
When the front end of infrared photoresistor device, the inductive switch of the infrared light emission lamp enters the overlay area of inductive transmitter,
The inductive switch is opened, and is controlled the infrared light emission lamp and is opened；When the scraper plate moves out covering for the inductive transmitter
When lid range, the inductive switch is disconnected, and is controlled the infrared light emission lamp and is closed.
As a kind of preferred embodiment of the invention, further includes: alarm；The alarm respectively with the first judging unit,
Second judgment unit connection；It is greater than in advance when first judging unit compares same scraper plate by the time difference of infrared photoresistor
If when time value or the second judgment unit compares the adjacent scraper plate of any two of the timing unit record by infrared
Whether the duration of photo resistance exceeds the average value that adjacent scraper plate passes through infrared photoresistor, and it is dynamic that the alarm carries out alarm
Make.
The present invention also provides a kind of chain rupture detection methods of chain-and-flight conveyer, are detected using above-mentioned drag conveyor chain rupture
Device, comprising the following steps:
Step1, when the scraper plate moves to the front end of infrared photoresistor device, the inductive switch of infrared light emission lamp
Into the overlay area of inductive transmitter, inductive switch is opened, and control infrared light emission lamp is opened；
Step2, current sensor senses current value in infrared photoresistor composition circuit in real time, and is sent to give
The signal knowledge of CPU processor takes unit；
Step3, the first judging unit compare the same infrared light emission lamp for scraping board ends by infrared photoresistor when
Between difference whether be greater than preset time value；Second judgment unit compares the adjacent scraper plate of any two of timing unit record by infrared
Whether the duration of photo resistance exceeds the average value that adjacent scraper plate passes through infrared photoresistor；
Step4, when the first judging unit compares the same infrared light emission lamp for scraping board ends by infrared photoresistor
When time difference is greater than preset time value or the adjacent scraper plate of any two of second judgment unit comparison timing unit record passes through
When the duration of infrared photoresistor passes through the average value of infrared photoresistor beyond adjacent scraper plate, alarm carries out actuation of an alarm；
Step5, when scraper plate moves out the coverage area of inductive transmitter, inductive switch is disconnected, and controls infrared light emission lamp
It closes.
As a kind of preferred embodiment of the invention, before executing Step1, the installation end of infrared photoresistor device is carried out
The adjustment of angle, so that transmitting light of the infrared photoresistor working face perpendicular to infrared light emission lamp.
Beneficial effects of the present invention: the present invention carries out scraping board ends by infrared photoresistor and infrared light emission lamp,
And adjacent scraper plate passes through infrared photosensitive resistor time, and the time of infrared photoresistor is then passed through by comparing same scraper plate
Difference carries out judging whether scraper plate tilts；And by the adjacent scraper plate of comparison any two by infrared photoresistor duration whether
Pass through the average value of infrared photoresistor beyond adjacent scraper plate, judging adjacent scraper plate, whether spacing changes, to judge chain
Item whether chain rupture；By above-mentioned setting, the chain rupture detection of chain is carried out in terms of two, further improves chain chain rupture detection
Reliability.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is top view of the invention；
Fig. 3 is cross-sectional view of the invention；
Fig. 4 is the structural schematic diagram of infrared photoresistor device of the present invention；
Fig. 5 is support end structural schematic diagram of the present invention；
Fig. 6 is the structural schematic diagram of annulus mounting hole of the present invention；
Fig. 7 is the structural schematic diagram of scraper plate of the present invention and infrared light reflection lamp；
Fig. 8 is the working principle of the invention figure；
In figure: 1-headstock, 2-lead-over grooves, 210-inductive transmitters, 3-medial launders, 4-scraper plates, 410-installations
Hole, 411-hole bodies, 412-tempering glass lids, 413-installation snap rings, 411-1-tempered glass install lid detent, 411-2-
Snap ring is installed, threaded hole, 5-chains, 6-infrared photoresistor devices, 610-mounting brackets, 620-infrared photosensitive electricity are installed
Resistance, 611-support ends, 612-installation ends, 613-annulus mounting holes, 614-mounting base ends, 615-connecting pins, 614-1- are red
Outer photo resistance mounting hole, 614-2-outer snap ring, 621-resistor main bodies, 622-wrap up elastic layer, 7-infrared light emissions outside
Lamp, 710-lamp ontologies, 720-resilient mounts, 730-inductive switches, 8-current sensors, 9-CPU processors,
The knowledge of 910-signals takes unit, the 920-the first judging unit, 930-timing units, 940-second judgment units, 10-alarms
Device.
Specific embodiment
Elaborate below in conjunction with attached drawing to the present invention, technical solution in the embodiment of the present invention carry out it is clear,
It is fully described by, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment one
As Figure 1-Figure 8, the present embodiment provides drag conveyor broken chain detecting devices, comprising: headstock 1, lead-over groove
2, the equal scraper plate 4 of medial launder 3, several spacing, chain 5, infrared photoresistor device 6, infrared light emission lamp 7, current sense
Device 8, CPU processor 9；The lead-over groove 2 is fixedly mounted between medial launder 3 and headstock 1；The scraper plate 4 is fixedly mounted on
On chain 5；The infrared photoresistor device 6 is symmetrically fixed on 1 two sides side wall of headstock；The infrared light emission lamp 7 is pacified
Mounted in the both ends of scraper plate 4；8 input terminal of current sensor is series at the infrared photoresistor device 6 and forms in circuit,
Output end is connect with CPU processor 9；
The CPU processor 9 includes: that signal knowledge takes unit 910, the first judging unit 920, timing unit 930, second to sentence
Disconnected unit 940；Wherein, the signal, which is known, takes unit 910 for knowing take the current sensor 8 to sense in real time infrared photosensitive
Resistance device 6 forms the size of current in circuit；First judging unit 920, for comparing the infrared of same 4 both ends of scraper plate
Whether emission lamp 7 is less than preset time value by the time difference of infrared photoresistor device 6；The timing unit 930, based on
When the adjacent scraper plate 4 of any two by infrared photoresistor device 6 duration；The second judgment unit 940, for comparing
Whether the adjacent scraper plate 4 of any two for stating the record of timing unit 930 exceeds adjacent scrape by the duration of infrared photoresistor device 6
Plate 4 passes through the average value of infrared photoresistor device 6.
As a kind of preferred embodiment of the present embodiment, the infrared photoresistor device 6 includes: mounting bracket 610, infrared
Photo resistance 620；The mounting bracket 610 includes: support end 611, installation end 612；Wherein, described 611 one end of support end is logical
It crosses bolt to be fixedly mounted on 1 side wall of headstock, the other end is provided with annulus mounting hole 613；The installation end 612 includes: peace
Fill seat end 614, connecting pin 615；The connecting pin 615 is fixedly connected with the annulus mounting hole 613；The mounting base end 614
It is provided with infrared photoresistor mounting hole 614-1, outer snap ring 614-2；The infrared photoresistor 620 includes: resistor main body
621, outer package elastic layer 622.
As a kind of preferred embodiment of the present embodiment, the infrared light emission lamp 7 includes: lamp ontology 710, resilient mount
720；4 both ends of scraper plate are provided with mounting hole 410；The mounting hole 410 includes: hole body 411, tempering glass lid 412, installation
Snap ring 413；Wherein, the 411 upper port inner ring surface of hole body is provided with tempered glass installation detent 411-1, thereon port peripheral
It is provided with installation snap ring installation threaded hole 411-2；412 lower end surface of tempering glass lid is fixed on 411 upper port of hole body
On the tempered glass installation detent 411-1 of inner ring surface setting, upper surface is fixed on the installation snap ring 413.
Specifically, a kind of drag conveyor broken chain detecting device provided in this embodiment, working principle is, in head
Infrared photoresistor device 6 is installed on the two sides side wall of frame 1, infrared light emission lamp 7 is installed at the both ends of scraper plate 4；I.e. in institute
When stating scraper plate 4 and moving to infrared photoresistor 6 underface of device, since infrared light emission lamp 7 irradiates infrared photoresistor 620,
So that its resistance value changes, it is reduced rapidly, so that the electric current in the circuit that infrared photoresistor device 6 forms becomes
Change；The signal knowledge that CPU processing 9 is given in the current value sensed in real time transmission is taken unit 910 by the current sensor 8, when same
When the variation of current value sensing occurs for the corresponding current sensor 8 in the both ends of scraper plate 4, the signal knowledge takes unit 910 by two
What current sensor 8 changed is to send at time point to give the first judging unit 920, and the comparison of the first judging unit 920 judgement is same
Whether one scraper plate 4 is less than preset time value by the time difference of infrared photoresistor device 6, illustrates 4 both ends of scraper plate if being less than
By being parastate when infrared photoresistor device 6, there is no tilt conditions, i.e. chain rupture situation.In addition, previous ought scrape
When plate 4 is by infrared photoresistor device 6, and the first judging unit 910 judges the infrared discharge lamps 7 at its both ends by infrared light
When the time difference of quick resistance device 6 is less than preset time value, timing unit starts timing, when the latter scraper plate 4 reaches infrared light
When quick resistance, timing unit 930 stops this timing, and starts the timing of next time；The second judgment unit 940 starts to judge
The adjacent scraper plate 4 of the first two that timing unit 930 records is passed through by whether the duration of infrared photoresistor 620 exceeds adjacent scraper plate 4
Cross the average value of infrared photoresistor 620；If exceeding, illustrate that the chain length between two scraper plates 4 changes, chain occurs
Chain rupture situation.
It is worth noting that using infrared photoresistor 620 in the present embodiment, it is therefore intended that, natural light is reduced to this inspection
Survey the influence of device.In addition, not being horizontality, in order to guarantee infrared light emission since scraper plate 4 is when by lead-over groove 2
Lamp 7 in the present embodiment, can set angle for infrared photoresistor device 6 with the working face of vertical irradiation infrared light surface resistance 620
Adjustable form is spent, specifically the i.e. described infrared photoresistor device 6 includes: mounting bracket 610, infrared photoresistor
620；The mounting bracket 610 includes: support end 611, installation end 612；Wherein, described 611 one end of support end is solid by bolt
On 1 side wall of headstock, one end is provided with annulus mounting hole 613 for Dingan County；The installation end 612 includes: mounting base end 614,
Connecting pin 615；The connecting pin 615 is fixedly connected with the annulus mounting hole 613；The mounting base end 614 is provided with infrared
Photo resistance mounting hole 614-1, outer snap ring 614-2；The infrared photoresistor 620 includes: resistor main body 621, outer package bullet
Property layer 622.By annulus mounting hole 613 carry out angle adjustment, guarantee infrared photoresistor 620 working face with it is described infrared
The light of light emitting lamp 7 is vertical.
In addition, in the process of running due to drag conveyor, there is vibration, in order to protect detecting element, this implementation is red
In outer photo resistance 620 and the installation of infrared light emission lamp 7, using elastic packaging layer 622 by operation element with it is infrared photosensitive
Resistance mounting hole 614-1 flexible installing, avoids rigid installation, the damage generated due to vibration.
Embodiment two
Fig. 1-Fig. 8 is please referred to, drag conveyor broken chain detecting device provided in this embodiment is mentioned with embodiment one on the whole
The broken chain detecting device of the drag conveyor of confession is similar, and difference is, the infrared light emission lamp 7 further include: induction is opened
Close 730；Inductive transmitter 210 is additionally provided on 2 chute steel of lead-over groove.When the scraper plate 4 move to it is described infrared photosensitive
When the front end of resistance device 6, the inductive switch 730 of the infrared light emission lamp 7 enters the overlay area of inductive transmitter 210,
The inductive switch 730 is opened, and is controlled the infrared light emission lamp 7 and is opened；When the scraper plate moves out the inductive transmitter
When 210 coverage area, the inductive switch 730 is disconnected, and is controlled the infrared light emission lamp 7 and is closed.
Wherein, inductive switch 730 and inductive transmitter 210 are opened using radio frequency in the specific implementation process
It closes.By the way that inductive switch 730 and inductive transmitter 210 is arranged, so that the infrared light emission lamp 7 on scraper plate 4, in its correspondence
When the scraper plate 4 of installation is without detection, inductive switch 730 is closed, and infrared light emission lamp 7 is closed, and saves electricity.
Embodiment three
As shown in figure 8, drag conveyor chain rupture detection method provided in this embodiment, uses the disconnected of above-mentioned drag conveyor
Chain detection device, comprising the following steps:
Step1, when the scraper plate 4 moves to the front end of infrared photoresistor device 6, the induction of infrared light emission lamp 7 is opened
730 overlay areas for entering inductive transmitter 210 are closed, inductive switch 730 is opened, and control infrared light emission lamp 7 is opened；
Step2, current sensor 8 senses infrared photoresistor 620 in real time and forms current value in circuit, and is sent to
The signal knowledge for giving CPU processor 9 takes unit 910；
Step3, the first judging unit 920 compare the infrared light emission lamp 7 at same 4 both ends of scraper plate by infrared photoresistor
Whether 620 time difference is greater than preset time value；Second judgment unit 940 compares any two phase that timing unit 930 records
Whether adjacent scraper plate 4 exceeds adjacent scraper plate 4 by the average value of infrared photoresistor 620 by the duration of infrared photoresistor 620；
Step4, when the infrared light emission lamp 7 that the first judging unit 920 compares same 4 both ends of scraper plate passes through infrared photosensitive electricity
When the time difference of resistance 620 is greater than preset time value or second judgment unit 940 compares timing unit 930 records any two
A adjacent scraper plate 4 is by the duration of infrared photoresistor 620 beyond adjacent scraper plate 4 by the average value of infrared photoresistor 620
When, alarm 10 carries out actuation of an alarm；
Step5, when scraper plate 4 moves out the coverage area of inductive transmitter 210, inductive switch 730 is disconnected, and controls infrared light
Emission lamp 7 is closed.
As a kind of preferred embodiment of the present embodiment, before executing Step1, by the installation end of infrared photoresistor device 6
612 carry out the adjustment of angle, so that transmitting light of 620 working face of infrared photoresistor perpendicular to infrared light emission lamp 7.It is worth
Illustrate, drag conveyor chain rupture detection method provided in this embodiment, working principle and embodiment one and embodiment
Two is identical, repeats no more then.
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field
Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.To this skill
For the those of ordinary skill in art field, without departing from the principle of the present invention, all Spirit Essences according to the present invention are made
Equivalents, modification and other several improvement out, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of drag conveyor broken chain detecting device, comprising: headstock (1), lead-over groove (2), medial launder (3), several spacing
Equal scraper plate (4), chain (5)；The lead-over groove (2) is fixedly mounted between medial launder (3) and headstock (1)；It is described to scrape
Plate (4) is fixedly mounted on chain (5)；It is characterized by further comprising: infrared photoresistor device (6), infrared light emission lamp
(7), current sensor (8), CPU processor (9)；The infrared photoresistor device (6) includes infrared photoresistor (620),
Infrared photoresistor device (6) is symmetrically fixed on the side wall of headstock (1) two sides；The infrared light emission lamp (7), which is mounted on, scrapes
The both ends of plate (4)；Current sensor (8) input terminal and infrared photoresistor device (6) are composed in series circuit, output end
It is connect with CPU processor (9)；The CPU processor (9) include: signal knowledge take unit (910), the first judging unit (920),
Timing unit (930), second judgment unit (940)；First judging unit (920) compares the red of same scraper plate (4) both ends
Whether outer light emitting lamp (7) is greater than preset time value by the time difference of infrared photoresistor (620)；The second judgment unit
(940) the adjacent scraper plate of any two (4) of comparison timing unit (930) record is by the duration of infrared photoresistor (620)
The no average value for passing through infrared photoresistor (620) beyond adjacent scraper plate (4).
2. drag conveyor broken chain detecting device according to claim 1, which is characterized in that the infrared photoresistor dress
Set (6) further include: mounting bracket (610)；The mounting bracket (610) includes: support end (611), installation end (612)；It is described
Support end (611) one end is fixedly mounted on headstock (1) side wall, and the other end is provided with annulus mounting hole (613)；The installation
Holding (612) includes: mounting base end (614), connecting pin (615)；The connecting pin (615) and the annulus mounting hole (613) are solid
Fixed connection；The mounting base end (614) is provided with infrared photoresistor mounting hole (614-1), outer snap ring (614-2)；It is described red
Outer photo resistance (620) includes: resistor main body (621), outer package elastic layer (622).
3. drag conveyor broken chain detecting device according to claim 1 or 2, which is characterized in that the infrared light emission
Lamp (7) includes: lamp ontology (710), resilient mount (720)；Scraper plate (4) both ends are provided with mounting hole (410)；The peace
Dress hole (410) includes: hole body (411), tempering glass lid (412), installation snap ring (413)；Hole body (411) the upper port inner ring
Face is provided with tempered glass installation detent (411-1), and port peripheral is provided with installation snap ring installation threaded hole (411-2) thereon；
On fixed tempered glass installation detent (411-1) in tempering glass lid (412) lower end surface, upper surface is fixed on installation snap ring
(413) on.
4. drag conveyor broken chain detecting device according to claim 3, which is characterized in that the infrared light emission lamp
(7) further include: inductive switch (730), the inductive switch (730) are series at the lamp ontology (710) of infrared light emission lamp (7)；
Inductive transmitter (210) are additionally provided on lead-over groove (2) chute steel.
5. drag conveyor broken chain detecting device according to claim 4, which is characterized in that the inductive switch (730)
RF switch is constituted with inductive transmitter (210).
6. drag conveyor broken chain detecting device according to claim 5, which is characterized in that further include: alarm (10)；
The alarm (10) connect with the first judging unit (920), second judgment unit (940) respectively.
7. a kind of drag conveyor chain rupture detection method, using drag conveyor broken chain detecting device as claimed in claim 6,
It is characterized in that, comprising the following steps:
Step1, when the scraper plate (4) moves to the front end of infrared photoresistor device (6), the sense of infrared light emission lamp (7)
Inductive switch (730) enters the overlay area of inductive transmitter (210), and inductive switch (730) is opened, and controls infrared light emission lamp
(7) it opens；
Step2, current sensor (8) senses current value in infrared photoresistor (620) composition circuit in real time, and is sent to
The signal knowledge for giving CPU processor (9) takes unit (910)；
Step3, the infrared light emission lamp (7) that the first judging unit (920) compares same scraper plate (4) both ends pass through infrared photosensitive electricity
Whether the time difference of resistance (620) is greater than preset time value；Second judgment unit (940) compares appointing for timing unit (930) record
Two adjacent scraper plates (4) of meaning pass through infrared photosensitive electricity by whether the duration of infrared photoresistor (620) exceeds adjacent scraper plate (4)
Hinder the average value of (620)；
Step4, when the infrared light emission lamp (7) that the first judging unit 920 compares same scraper plate (4) both ends passes through infrared photosensitive electricity
When hindering the time difference of (620) greater than preset time value or second judgment unit (940) compares timing unit (930) record
The adjacent scraper plate of any two (4) passes through infrared photoresistor beyond adjacent scraper plate (4) by the duration of infrared photoresistor (620)
(620) when average value, alarm (10) carries out actuation of an alarm；
Step5, when scraper plate (4) moves out the coverage area of inductive transmitter (210), inductive switch (730) is disconnected, and is controlled infrared
Light emitting lamp (7) is closed.
8. drag conveyor chain rupture detection method according to claim 7, which is characterized in that, will be red before executing Step1
The installation end (612) of outer photo resistance device (6) carries out the adjustment of angle, so that infrared photoresistor (620) working face is vertical
In the transmitting light of infrared light emission lamp (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212536.3A CN106829390B (en) | 2017-04-01 | 2017-04-01 | A kind of drag conveyor broken chain detecting device and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN107777288B (en) * | 2017-11-06 | 2019-10-01 | 中国矿业大学 | A kind of drag conveyor chain rupture real-time monitoring system and monitoring method |
| CN109051624B (en) * | 2018-09-20 | 2024-02-02 | 宁夏天地奔牛实业集团有限公司 | Mining scraper conveyor broken chain monitoring signal acquisition processing system |
| CN110077809A (en) * | 2019-04-25 | 2019-08-02 | 连云港天明装备有限公司 | A kind of fully-mechanized mining working surface transporter broken chain detecting device and its method |
| CN111498426B (en) * | 2020-04-10 | 2021-09-24 | 中国矿业大学 | Method for detecting chain breakage of double-chain scraper conveyor through structured light positioning and ranging |
| CN112456070A (en) * | 2020-11-30 | 2021-03-09 | 扬州得路达交通科技有限公司 | Conveying system for waste asphalt recycling process and using method thereof |
| CN112623631B (en) * | 2020-12-17 | 2022-02-01 | 山东科技大学 | Chain life prediction and chain breakage position judgment method for scraper conveyor |
| WO2022188283A1 (en) | 2021-03-08 | 2022-09-15 | 中国矿业大学 | Scraper chain monitoring system and method based on measurement of light transmission amount of torsion spring |
| CN114560256A (en) * | 2022-02-28 | 2022-05-31 | 国能神东煤炭集团有限责任公司 | Scraper conveyor fault detection method and system and storage medium |
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| JP3415930B2 (en) * | 1994-06-13 | 2003-06-09 | 株式会社日立製作所 | Chain breaking detection method and device for lifting device |
| CN202245202U (en) * | 2011-09-09 | 2012-05-30 | 平顶山中选自控系统有限公司 | Chain breaking protection device of scraper conveyor |
| CN102491067B (en) * | 2011-11-30 | 2014-12-10 | 中国神华能源股份有限公司 | Scraper conveyor fault detection device, system and method |
| CN202449583U (en) * | 2011-12-19 | 2012-09-26 | 吴海洲 | Intelligent alarming broken chain protecting device for scraper conveyer |
| CN103246269B (en) * | 2013-05-08 | 2016-04-13 | 中国矿业大学 | A kind of coal separation machine carrier chain integrated monitoring apparatus |
| CN104555341A (en) * | 2014-12-11 | 2015-04-29 | 永煤集团股份有限公司 | Chain breaking, dislocation and chain falling comprehensive protection device of scraper conveyor |
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