CN104229427B - A kind of slat conveyer chain rupture method of inspection - Google Patents
A kind of slat conveyer chain rupture method of inspection Download PDFInfo
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- CN104229427B CN104229427B CN201410503491.1A CN201410503491A CN104229427B CN 104229427 B CN104229427 B CN 104229427B CN 201410503491 A CN201410503491 A CN 201410503491A CN 104229427 B CN104229427 B CN 104229427B
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- chain
- strain
- slat conveyer
- sprocket
- chain rupture
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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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- Control Of Conveyors (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
A kind of slat conveyer chain rupture method of inspection, belongs to the fault detection method of slat conveyer.In Chain Wheel of Flight Bar Conveyor some gear teeth maximum weighted face, strain sensor is installed, gather the strain in sprocket wheel tooth force face, when certain chain generation chain rupture of slat conveyer, the sprocket teeth engaged with it strains in the short time and can undergo mutation, and with there is not the sprocket teeth that chain rupture chain engages and strain in the short time and significant change can not occur.The strain variation of the sprocket teeth bearing surface engaged by contrast and different chain, can judge whether certain chain of slat conveyer chain rupture occurs in time, thus takes necessary shutdown measure, avoids all chain breakages and causes the badly damaged accident of equipment.The method of the invention is simple, and sensitivity, accuracy are high, not only can judge whether slat conveyer chain rupture occurs, and can judge which root chain generation chain rupture concrete, has practicality widely.
Description
Technical field
The present invention relates to a kind of fault detection method of slat conveyer, especially a kind of slat conveyer chain rupture method of inspection.
Background technology
Slat conveyer be widely used in mine combine adopt, port traffic etc., realizing sprocket drive system running by the engagement of sprocket wheel chain, is the equipment utilizing flexible traction mechanism continuative transport.In slat conveyer actual condition, scraper chain affects by conditions such as self material, wearing and tearing, corrosion, bears the effect of enormous impact load, and easy to wear, fracture, once it is uneven that load diatibution occurs, very easily chain rupture accident occurs.Chain rupture accident is that more accident occurs slat conveyer, accounts for 52.2% of slat conveyer accident generation sum, has a strong impact on slat conveyer safe operation.Slat conveyer chain rupture for different purposes detects, especially mine slat conveyer, work under bad environment, dust is many, be difficult to adopt the means such as such as optical skew detection, supersonic crack detection to be assessed chain state, therefore slat conveyer chain rupture detects is a technical barrier always.At present, existing slat conveyer chain rupture detection technique mainly adopts drive motor electric current testing and hydraulic tensioning cylinder pressure detection method.These two kinds of methods are only confined to detect chain complete rupture state; Situation about rupturing for only there being part chain, current of electric and cylinder pressure do not have significant change, and this two kinds of methods all cannot effectively detect.During slat conveyer generation chain rupture, first a chain ruptures often, then causes the stressed unexpected increase of other chains, exceedes allowable value, causes other chains in succession to rupture; Chain breakage can form larger bounce, drives scraper plate bounce-back, causes badly damaged to equipment.Therefore, in order to avoid chain rupture causes slat conveyer to damage, just will can detect, and make rational expeditious measures when fracture occurs a chain, this is that prior art is difficult to realize.
Summary of the invention
Technical matters: the object of the invention is the deficiency overcoming existing detection technique; a kind of simple, highly sensitive, slat conveyer chain rupture method of inspection that accuracy is high is provided; not only can detect whether slat conveyer chain breakage occurs in real time; and correctly can judge which root chain ruptures; before chain complete rupture; send alerting signal, shut down.
Technical scheme: slat conveyer chain rupture method of inspection of the present invention, its step is as follows:
(1) sprocket wheel engaged at slat conveyer and different chain is selected the gear teeth of same phase, according to the hand of rotation of sprocket shaft, the maximum strain district of the gear teeth is judged by force analysis, then, strain sensor is affixed on the position that same phase gear teeth flank of tooth stress deformation is maximum, strain sensor can rotate with sprocket wheel;
(2) in slat conveyer operational process, the strain of the sprocket teeth bearing surface engaged by strain sensor collection and different chain, all strains detected can be transferred to signal analysis device by radio transmitting device, and signal analysis device can calculate the strain variation rate W of both sides sprocket teeth bearing surface in real time
1(%) and judge whether the strain in tooth force face suddenlys change, and analysis result is delivered to server by cable, then is delivered to upper computer and is further analyzed judgement; Electric supply installation is used for the power supply of strain sensor, signal analysis device and radio transmitting device;
(3) upper computer compares the sprocket teeth bearing surface strain variation rate W engaged from different chain in real time
1(%), with set strain variation rate threshold values J
1(%) relation between; If there is W in any time in every 10s
1>J
1, and the strain of other tooth force faces increases or other gear teeth | W
1| <10%, then can judge slat conveyer reduces J with strain suddenly in 10s
1(%) scraper chain of the tooth mesh more than there occurs chain rupture.
Beneficial effect: due to the every root chain of slat conveyer all with a sprocket engagement, the strain of each sprocket teeth also just directly reflects the stressing conditions of chain, when certain root chain generation chain rupture, the stressed meeting of respective sprockets is undergone mutation, gear teeth strain also will be undergone mutation, and other sprocket teeth strains that chain rupture does not occur temporarily can not significant change.Compared with the prior art; the present invention measures the strain of the sprocket teeth bearing surface engaged from different chain by strain sensor; means are more direct; sensitivity is higher, and accuracy is higher, not only can detect whether slat conveyer chain breakage occurs in time; and can judge which root chain ruptures; before chain complete rupture, alerting signal can be sent, carry out shutdown to repair chain.Present invention, avoiding the badly damaged and economic loss of equipment that scraper conveyer chain complete rupture causes.
Accompanying drawing explanation
Fig. 1 is scraper chain chain rupture overhaul flow chart of the present invention.
Fig. 2 is a kind of embodiment schematic diagram of the present invention.
Fig. 3 is the element composition diagram in anchor fitting of the present invention.
In figure: 1, force area, 2, strain sensor cable; 3, strain sensor; 4, anchor fitting; 5, signal handling equipment; 6, the first sprocket wheel; 7, sprocket wheel wheel shaft; 8, the second sprocket wheel.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
Chain rupture method of inspection step is as follows:
(1) sprocket wheel engaged at slat conveyer and different chain is selected the gear teeth of same phase, according to the hand of rotation of sprocket shaft, the maximum strain district of the gear teeth is judged by force analysis, then, strain sensor is affixed on the position that same phase gear teeth flank of tooth stress deformation is maximum, strain sensor can rotate with sprocket wheel;
(2) in slat conveyer operational process, the strain of the sprocket teeth bearing surface engaged by strain sensor collection and different chain, all strains detected can be transferred to signal analysis device by radio transmitting device, and signal analysis device can calculate the strain variation rate W of both sides sprocket teeth bearing surface in real time
1(%) and judge whether the strain in tooth force face suddenlys change, and analysis result is delivered to server by cable, then is delivered to upper computer and is further analyzed judgement; Electric supply installation is used for the power supply of strain sensor, signal analysis device and radio transmitting device;
(3) upper computer compares the sprocket teeth bearing surface strain variation rate W engaged from different chain in real time
1(%), with set strain variation rate threshold values J
1(%) relation between; If there is W in any time in every 10s
1>J
1, and the strain of other tooth force faces increases or other gear teeth | W
1| <10%, then can judge slat conveyer reduces J with strain suddenly in 10s
1(%) scraper chain of the tooth mesh more than there occurs chain rupture.
Embodiment: as shown in Figure 1, slat conveyer chain rupture method of inspection of the present invention, some groups of strain sensores are affixed on the sprocket teeth root engaged from different chain, for gathering the strain of the gear teeth.Chain rupture checking system testing process is as follows:
(1) initialization chain rupture checking system, arranges strain variation rate threshold values J by upper computer
1(%), desirable J
1=40%;
(2) strain sensor gathers gear teeth strain, and by radio transmitting device, strain signal is transferred to signal analysis device;
(3) signal analysis device calculates sprocket teeth strain variation rate W in real time
1, and analysis result is transferred to upper computer (%);
(4) upper computer judges: if any time in every 10s there is W
1>J
1, and the strain of other tooth force faces increases or other gear teeth | W
1| <10%, then can judge slat conveyer reduces J with strain suddenly in 10s
1(%) scraper chain of the tooth mesh more than there occurs chain rupture; When detect there occurs chain rupture time, there is action in upper computer, early warning also shuts down process, otherwise upper computer action does not occur immediately, circulation perform testing process.
Fig. 2 is a kind of embodiment schematic diagram of the present invention.One embodiment of the present invention are set forth for limit double chain conveyor.The distortion of double chain conveyor sprocket wheel socket position, limit is maximum, by the chain wheel assembly that direction shown in Fig. 2 rotates, its force area 1 is dash area, strain sensor 3 is affixed on the first sprocket wheel 6, second sprocket wheel 8 gear teeth root of same phase as shown in the figure by the present invention, to prevent strain sensor impaired and to be convenient to strain sensor paster.For one group of strain sensor wiring.In order to effectively avoid causing cable to destroy perpendicular to the axial vertical chain of sprocket wheel, strain sensor cable 2 is drawn from the middle part of cross chain groove between sprocket teeth, and guided by axial notch on sprocket shaft, be finally connected on the data collecting instrument of anchor fitting 4 inside of sprocket shaft axle head.As shown in Figure 3, be furnished with data collecting instrument, wireless router and electric supply installation in anchor fitting 4, electric supply installation is that data collecting instrument and wireless router are powered.The strain signal that data collecting instrument collection strain sensor 3 transmits also is changed, and then carries out signal transmitting by the wireless router in anchor fitting 4.Be arranged in the wireless signal of wireless router reception from anchor fitting 4 of signal handling equipment 5, and sent to signal analysis device analysis.Signal analysis device calculates the strain variation rate W of both sides sprocket teeth bearing surface in real time
1and judge whether the strain in tooth force face suddenlys change, and analysis result is delivered to server by cable (%).The upper computer being positioned at signal handling equipment 5 is further analyzed judgement to the data stored in the server in real time.Upper computer compares the storage analysis result from signal analysis device in the server (the sprocket teeth bearing surface strain variation rate W engaged from different chain in real time
1(%)), with set strain variation rate threshold values J
1(%) relation between; If there is W in any time in every 10s
1>J
1, and the strain of other tooth force faces increases or other gear teeth | W
1| <10%, then can judge slat conveyer reduces J with strain suddenly in 10s
1(%) scraper chain of the tooth mesh more than there occurs chain rupture.When generation chain rupture being detected, upper computer also can take shutdown to arrange in time, prevents all chain breakages from causing serious accident.
Claims (1)
1. a slat conveyer chain rupture method of inspection, is characterized in that: its step is as follows:
(1) sprocket wheel engaged at slat conveyer and different chain is selected the gear teeth of same phase, according to the hand of rotation of sprocket shaft, the maximum strain district of the gear teeth is judged by force analysis, then, strain sensor is affixed on same phase gear teeth flank of tooth stress deformation maximum strain district, strain sensor can rotate with sprocket wheel;
(2) in slat conveyer operational process, the strain of the sprocket teeth bearing surface engaged by strain sensor collection and different chain, all strains detected can be transferred to signal analysis device by radio transmitting device, and signal analysis device can calculate the strain variation rate of both sides sprocket teeth bearing surface in real time
w 1(%) and judge whether the strain in tooth force face suddenlys change, and analysis result is delivered to server by cable, then is delivered to upper computer and is further analyzed judgement; Electric supply installation is used for the power supply of strain sensor, signal analysis device and radio transmitting device;
(3) upper computer compares the sprocket teeth bearing surface strain variation rate engaged from different chain in real time
w 1(%), with set strain variation rate threshold values
j 1(%) relation between; If any time in every 10s occurs
w 1>
j 1, and the strain of other tooth force faces increases or other gear teeth |
w 1| <10%, then can judge slat conveyer reduces suddenly in 10s with strain
j 1(%) scraper chain of the tooth mesh more than there occurs chain rupture.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410503491.1A CN104229427B (en) | 2014-09-26 | 2014-09-26 | A kind of slat conveyer chain rupture method of inspection |
| PCT/CN2015/078724 WO2016045389A1 (en) | 2014-09-26 | 2015-05-12 | Broken link detection method for drag flight conveyor |
| AU2015321151A AU2015321151B2 (en) | 2014-09-26 | 2015-05-12 | Broken link detection method for drag flight conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410503491.1A CN104229427B (en) | 2014-09-26 | 2014-09-26 | A kind of slat conveyer chain rupture method of inspection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104229427A CN104229427A (en) | 2014-12-24 |
| CN104229427B true CN104229427B (en) | 2016-03-02 |
Family
ID=52218493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410503491.1A Active CN104229427B (en) | 2014-09-26 | 2014-09-26 | A kind of slat conveyer chain rupture method of inspection |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104229427B (en) |
| AU (1) | AU2015321151B2 (en) |
| WO (1) | WO2016045389A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US11807465B2 (en) | 2021-03-08 | 2023-11-07 | China University Of Mining And Technology | System for monitoring scarper chain based on measurement on transmittance of torsion spring and method thereof |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104229427B (en) * | 2014-09-26 | 2016-03-02 | 中国矿业大学 | A kind of slat conveyer chain rupture method of inspection |
| CN105059869B (en) * | 2015-08-24 | 2017-07-04 | 中国矿业大学 | Drag conveyor dumbbell pin break detection system and method |
| CN105173616B (en) * | 2015-09-06 | 2017-08-25 | 中国矿业大学 | A kind of scraper conveyer chain break detection system and method |
| CN105784241B (en) * | 2016-03-07 | 2018-04-13 | 中国矿业大学 | A kind of scraper conveyer chain tension force evaluation method |
| CN105858126B (en) * | 2016-05-17 | 2018-04-24 | 中国矿业大学 | A kind of scraper conveyer chain fault diagnosis system and method |
| CN105928653A (en) * | 2016-05-17 | 2016-09-07 | 中国矿业大学 | Scraper conveyer chain tension monitoring device and method |
| CN106404570B (en) * | 2016-09-26 | 2019-01-01 | 中国矿业大学 | Heavily loaded Chain Wheel of Flight Bar Conveyor fatigue under scrubbing monitoring device and method under vibratory impulse |
| CN106984073B (en) * | 2017-05-15 | 2022-08-05 | 上海城投污水处理有限公司 | Fault detection device for nonmetal chain type mud scraper |
| 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 |
| CN108195942B (en) * | 2018-02-28 | 2023-05-23 | 桂林电子科技大学 | Acoustic emission detection device and method for meshing performance of chain wheel and round-link chain |
| CN109752121A (en) * | 2019-03-14 | 2019-05-14 | 辽宁工程技术大学 | A kind of heavy scraper conveyor sprocket wheel socket stress detection device |
| CN112781871B (en) * | 2020-12-21 | 2022-12-06 | 哈尔滨启棱航空科技有限公司 | Chain detection method based on chain detection tool |
| CN112683526B (en) * | 2020-12-21 | 2022-09-02 | 绩溪山合机械有限公司 | Automatic detection machine for chain |
| CN112729819B (en) * | 2020-12-21 | 2022-09-02 | 绩溪山合机械有限公司 | Auxiliary tool for chain machining |
| CN113501281B (en) * | 2021-07-30 | 2022-07-29 | 辽宁工程技术大学 | Adjustable automatic chain breaking mechanism of scraper conveyor and using method |
| CN113671506A (en) * | 2021-09-08 | 2021-11-19 | 国家能源集团宁夏煤业有限责任公司 | Scraper conveyor protection device based on ultrasonic ranging principle |
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- 2015-05-12 WO PCT/CN2015/078724 patent/WO2016045389A1/en active Application Filing
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| US11807465B2 (en) | 2021-03-08 | 2023-11-07 | China University Of Mining And Technology | System for monitoring scarper chain based on measurement on transmittance of torsion spring and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015321151B2 (en) | 2018-04-19 |
| WO2016045389A1 (en) | 2016-03-31 |
| AU2015321151A1 (en) | 2017-02-02 |
| CN104229427A (en) | 2014-12-24 |
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Inventor after: Li Wei Inventor after: Zhu Zhencai Inventor after: Zhang Xing Inventor after: Qiu Mingquan Inventor after: Zhou Gongbo Inventor after: Lu Hao Inventor after: Cao Guohua Inventor after: Shen Gang Inventor after: Peng Yuxing Inventor before: Li Wei Inventor before: Zhu Zhencai Inventor before: Qiu Mingquan Inventor before: Zhang Xing Inventor before: Zhou Gongbo Inventor before: Lu Hao Inventor before: Cao Guohua Inventor before: Shen Gang Inventor before: Peng Yuxing |
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