CN2900432Y - Overload warning device for scraper conveyer - Google Patents
Overload warning device for scraper conveyer Download PDFInfo
- Publication number
- CN2900432Y CN2900432Y CN 200620113239 CN200620113239U CN2900432Y CN 2900432 Y CN2900432 Y CN 2900432Y CN 200620113239 CN200620113239 CN 200620113239 CN 200620113239 U CN200620113239 U CN 200620113239U CN 2900432 Y CN2900432 Y CN 2900432Y
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- China
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- torque sensor
- scraper conveyer
- receptor
- utility
- processing circuit
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Abstract
This utility model discloses an overload alarming device of a scraper conveyer and relates to the electronic technical application field. Technically, a torque sensor is attached to an output shaft of a scraper conveyer decelerator, and the signals of the torque sensor are transformed into electronic frequency signals in proportion to the torques after being collected by a detecting and sending module and are then sent wirelessly. The signals are transformed into voltage through a receiver and a processing circuit and make audible-visual annunciation when the torque exceeds a set value. This utility model prevents the scraper conveyer from vehicle closing down and even burning the motor due to overloading, promotes the production capacity and efficiency of coal mining, and reduces the coal mining cost with scientific and reasonable technical project, simple and practical conformation, convenient daily maintenance and ideal employment effects or the like, thereby having strong vitality and evident economic benefits despite more and more serious energy problems in the country.
Description
Technical field:
The utility model relates to the application of electronic technology field, specifically a kind of Drag Conveyor Overladen Alarm Device.
Background technology:
Slat conveyer is the machinery for coal-face and mining roadway fortune coal, is first link of coal shipment, and it has determined the productive capacity and the efficient of coal-face to a great extent.Coal cinder falls within on the slat conveyer after the coal plough exploitation, by slat conveyer coal is transported.The influence of the factors such as irregularity of the complexity of the operating mode of being mined, rib structure makes that the fluctuation of load of slat conveyer is bigger.Coal amount on slat conveyer is excessive, when surpassing the carrying capacity of drive motor, the vexed car phenomenon of usually said slat conveyer can take place, even burn motor, causes the slat conveyer paralysis, coal mining decrease in efficiency, the vicious circle that cost rises.
Summary of the invention:
The purpose of this utility model provides a kind of Drag Conveyor Overladen Alarm Device, and the vexed car that it can prevent slat conveyer effectively and cause because of overload is stopped transport.
For achieving the above object, the utility model provides a kind of structure Drag Conveyor Overladen Alarm Device.
The technical scheme that structure Drag Conveyor Overladen Alarm Device provided by the utility model is adopted is: paste torque sensor on the slat conveyer speed reducer output shaft, torque sensor signal transmitter module collection after testing, be converted into the electric frequency signal with the proportional relation of moment of torsion, carry out wireless transmission then.Be converted into voltage again through receptor and treatment circuit, show the instantaneous torque size, and when moment of torsion surpasses setting value, carry out sound and light alarm with digital form.The utility model mainly is made up of torque sensor, detection transmission circuit, receptor, signal processing circuit, annunciator, and torque sensor is pasted on the speed reducer output shaft, and detection and transmission circuit and sensor are consolidated; Detect transmission circuit by the invisible receptor that is connected to of the receiving wire of built-in emitting antenna and receptor, receptor connects signal processing circuit, and signal processing circuit connects annunciator.
Owing to adopted above-mentioned technical solution, when the slat conveyer overload, be that moment of torsion on the speed reducer output shaft is when surpassing setting value, overload alarm can carry out sound and light alarm, prevent the phenomenon generation that slat conveyer because of overload vexed car takes place even burns motor, improve the productive capacity and the efficient of coal-face, reduced mining costs.The utlity model has characteristics such as technical scheme is scientific and reasonable, simple structure is practical, daily attention is convenient, result of use ideal.Day by day under the intense situation, have great vitality and remarkable economic efficiency at the national energy.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the electric functional block diagram of Drag Conveyor Overladen Alarm Device embodiment of the present utility model.
Fig. 2 is detection and the transmission circuit schematic diagram of embodiment of the present utility model.
Fig. 3 is that the signal of the utility model embodiment receives and the treatment circuit schematic diagram.
Indicate in the accompanying drawing: torque sensor 1, detection transmission circuit 2, receptor 3, signal processing circuit 4, annunciator 5, reductor 6, electrical motor 7, sprocket wheel 8;
The specific embodiment:
In Fig. 1, torque sensor 1 is pasted on the output shaft of reductor 6, and sensor 1 material adopts high-quality alloy steel.When the output shaft of reductor 6 was subjected to moment of torsion, the resistance strain gage on sensor 1 elastic element was converted into voltage signal with strain.Voltage signal is sent into and is detected and transmission circuit 2, and detection and transmission circuit 2 are consolidated with sensor 1.Voltage signal reaches the output required value behind op amp.Detection and transmission circuit 2 convert the simulation electric signal to the constant amplitude frequency signal, by built-in emitting antenna signal are sent.Signal is received by receptor 3, and the frequency signal that will have torque information through signal processing circuit 4 is converted to voltage without distortion, (represents moment of torsion to reach rated value) when voltage reaches setting value, connects annunciator 5 and carries out sound and light alarm.
In Fig. 2, four resistance strain gage R1, the R2, R3, the R4 that stick on sensor 1 elastic element form full-bridge circuit, R5, R6, R7 and R
W1It is the initial zero-regulator resistor of electric bridge.The voltage signal of electric bridge output is sent into op amp L7650, and the computing input end adopts the shielding input.L7650 has low imbalance, drift and high gain, high input impedance.Change R
W2Value can be adjusted its gain, makes it output and reaches required value.Transmission circuit is made up of IC2 and T630.IC2 adopts industrial grade high precision, low-cost voltage controlled oscillator (VCO), and analog electrical signal is converted to the constant amplitude frequency signal.The wireless transmission of signal is finished by integrated chip T630, and there are carrier transmit device, frequency modulator, built-in emitting antenna in its inside of T630.
Fig. 3 receives and treatment circuit figure for signal.The frequency signal that signal receiving circuit will have torque information is converted to voltage without distortion.T631 inside is provided with frequency signal and receives and demodulator circuit, and its output is coupled to IC4 through C1, and IC4 forms the back-pressure control circuit, and its input is a frequency, and the aanalogvoltage of output is handled by four op amp TL084 after C3 filtering.TL084-1 carries out sending into the back level behind the pretreatment to aanalogvoltage, and TL084-2 is an in-phase amplifier, R
W2Effect be to adjust gain, change the size of output; R
W4Be the decay potential device.Hole 084-4 is a comparator, and voltage usefulness is set or adjusted to diode on its inverting input for artificial, when the torque signal that inputs to in-phase end during less than the setting of end of oppisite phase, and TL084-4 output low level, not conducting of driving tube T this moment, relay K A dead electricity; Otherwise TL084-4 exports high level, driving tube T conducting, and KA gets electronic work, sends the signal of handling overload.
Certainly; here need to prove: the structure Drag Conveyor Overladen Alarm Device that the utility model proposes; be a complete inventive concept, allly only depend on the different electronics package of conversion and reach the various conversion of the utility model purpose, all should drop within the protection domain of the present utility model.
Claims (3)
1, a kind of Drag Conveyor Overladen Alarm Device, mainly form by torque sensor, detection transmission circuit, receptor, signal processing circuit, annunciator, it is characterized in that: torque sensor is pasted on the speed reducer output shaft, detection and transmission circuit and sensor are consolidated, detect transmission circuit by the invisible receptor that is connected to of the receiving wire of built-in emitting antenna and receptor, receptor connects signal processing circuit, and signal processing circuit connects annunciator.
2, Drag Conveyor Overladen Alarm Device according to claim 1 is characterized in that: described torque sensor is installed on the slat conveyer speed reducer output shaft.
3, middle scraper conveyer overload alarm according to claim 1 is characterized in that: described torque sensor adopts resistance-strain chip torque sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113239 CN2900432Y (en) | 2006-04-28 | 2006-04-28 | Overload warning device for scraper conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113239 CN2900432Y (en) | 2006-04-28 | 2006-04-28 | Overload warning device for scraper conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900432Y true CN2900432Y (en) | 2007-05-16 |
Family
ID=38084595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620113239 Expired - Fee Related CN2900432Y (en) | 2006-04-28 | 2006-04-28 | Overload warning device for scraper conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900432Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705013A (en) * | 2012-06-20 | 2012-10-03 | 上海交通大学 | System and method for real-time monitoring of folding type earthwork transport machine |
| WO2016045389A1 (en) * | 2014-09-26 | 2016-03-31 | 中国矿业大学 | Broken link detection method for drag flight conveyor |
| CN109205187A (en) * | 2018-09-28 | 2019-01-15 | 南安市莱康机械科技有限公司 | A kind of logistics roller with overweight detection function |
| CN112258803A (en) * | 2020-10-21 | 2021-01-22 | 内蒙古上海庙矿业有限责任公司 | Early warning device and early warning method for scraper conveyor |
-
2006
- 2006-04-28 CN CN 200620113239 patent/CN2900432Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705013A (en) * | 2012-06-20 | 2012-10-03 | 上海交通大学 | System and method for real-time monitoring of folding type earthwork transport machine |
| WO2016045389A1 (en) * | 2014-09-26 | 2016-03-31 | 中国矿业大学 | Broken link detection method for drag flight conveyor |
| CN109205187A (en) * | 2018-09-28 | 2019-01-15 | 南安市莱康机械科技有限公司 | A kind of logistics roller with overweight detection function |
| CN109205187B (en) * | 2018-09-28 | 2020-05-15 | 深圳德坤物流有限公司 | Logistics roller with overweight detection function |
| CN112258803A (en) * | 2020-10-21 | 2021-01-22 | 内蒙古上海庙矿业有限责任公司 | Early warning device and early warning method for scraper conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhangjiakou Hengyang Electrical Appliances Co., Ltd. Assignor: China Coal Zhangjiakou Coal Mining Machinery Co., Ltd. Contract fulfillment period: 2007.12.20 to 2012.12.19 Contract record no.: 2008990001257 Denomination of utility model: Overload warning device for scraper conveyer Granted publication date: 20070516 License type: Exclusive license Record date: 20081121 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.12.20 TO 2012.12.19; CHANGE OF CONTRACT Name of requester: ZHANGJIAKOU HENGYANG ELECTRICAL APPLIANCES CO., LT Effective date: 20081121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20150428 |
|
| EXPY | Termination of patent right or utility model |