CN201068338Y - Conveyer belt tearing detecting device - Google Patents
Conveyer belt tearing detecting device Download PDFInfo
- Publication number
- CN201068338Y CN201068338Y CNU2007201475592U CN200720147559U CN201068338Y CN 201068338 Y CN201068338 Y CN 201068338Y CN U2007201475592 U CNU2007201475592 U CN U2007201475592U CN 200720147559 U CN200720147559 U CN 200720147559U CN 201068338 Y CN201068338 Y CN 201068338Y
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- frame
- conveyer
- roller
- detecting device
- conveyer band
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Abstract
The utility model relates to a conveying belt tearing monitoring device which comprises a sensor 1, a machine frame 2, a conveying belt 3, a signal processing device and a warning device, etc. When a foreign matter 6 is clipped between the machine frame 2 and the conveying belt 3 to cause the conveying belt to be torn and a chink 5 to appear, the running conveying belt sends the foreign matter 6 a longitudinal force 4 which is steep and variable. When the signal processing device detects that the longitudinal force 4 is larger than a setting warning peak value, the conveying belt is started to tear the defective warning device.
Description
Technical field
The utility model belongs to transport field, is the control setup of test load carrier danger.Be particularly related to a kind of conveyer band discerption detecting device.
Background technology
The load-transfer device longitudinal tear major cause of belt conveyer is to carry foreign matters such as the spoil of bulk, crooked chisel, angle steel, channel-section steel in the material of carrying secretly.After these foreign matters fall, be stuck on frame or the roller supporting tube, can cause conveyer band discerption, cause great economic loss.Because load-transfer device longitudinal tear accident happens occasionally, so be starved of a kind of reliable and practical conveyer band discerption detecting device of development.
A kind of " conveyor belt running is torn the comparison and detection guard method of current floating difference position " that Chinese patent CN13896 shows.Constitute: the electric current to driving motor detects, handles, reports to the police.Purpose: conveyer band discerption has strengthened the electric current of drive motor.Detect this electric current, the indirect detection conveyer band discerption.Shortcoming: the motor of large-scale conveyor, the rotor inertia of drop-gear box are bigger, the propulsive effort that conveyer band discerption increases, and part is provided by rotor inertia, and the motor current that makes conveyer band discerption cause changes and reduces, even is submerged fully.Rotor inertia is big more, and signal amplitude is low more, and signal to noise ratio is low more, and the conveyer band discerption detecting reliability is low more.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art and a kind of conveyer band discerption detecting device is provided, and it can improve signal to noise ratio and the detecting reliability that detects the conveyer band discerption breakdown signal.
The purpose of this utility model realizes by following measure: used for conveyer belt is equipped with driving roller, changed course roller, roller supporting tube in belt conveyer on the frame of belt conveyer.On driving roller, changed course roller, roller supporting tube, load-transfer device is installed.Driving roller drives load-transfer device, and material is transported to the emptying point by movable loading point.It is characterized in that, be departure point with the afterbody of conveyer, and leaving on the later frame of the changed course roller of conveyer afterbody has several force gauges.The stress deformation direction of the longitudinal force of the precipitous variation of detection sensitive direction trend frame of force gauge.Force gauge connects signal processor unit.Signal processor unit connects acoustic-optic alarm or stopping alarm device.The signal that force gauge detects starts acoustic-optic alarm or stopping alarm device when surpassing the warning threshold of signal processor unit.
Described frame comprises, structures such as vertical frame, horizontal frame, frames; When belt conveyer is a steel rope when hanging carrying roller cartridge type conveyer, frame is structures such as the steel rope that hangs roller supporting tube and frames.Described force gauge is resistance strain sensor, semiconductor transducer, inductance sensor, grating sensor, fiber-optic grating sensor.Described longitudinal force is the power identical substantially with running direction of conveyor belt.
The impulsive force that normal condition, frame are born material is downward power, and the detection sensitive direction of force gauge has determined the not response of downward power.Propulsive effort, tensile force are to change longitudinal force slowly, can be filtered out by signal processor unit.So normal condition, signal processor unit do not start acoustic-optic alarm or stopping alarm device.
When foreign matter was torn load-transfer device, on the one hand, the load-transfer device of operation was given the longitudinal force of a precipitous variation of frame by foreign matter.On the other hand, conveyer band discerption has strengthened the running resistance of load-transfer device.This resistance produces the longitudinal force of another kind of precipitous variation by the roller of turning back, the driving roller of load-transfer device to frame.In the longitudinal force of described precipitous variation one when surpassing the warning threshold that signal processor unit sets, starts acoustic-optic alarm or stopping alarm device.
The utility model is compared with the prior art:
In the prior art, the motor of large-scale conveyor, the rotor inertia of drop-gear box are bigger, and rotor inertia provides the moment propulsive effort of load-transfer device also bigger, and the motor current that makes conveyer band discerption cause changes and reduces, even is submerged fully.Rotor inertia is big more, and signal amplitude is low more, and signal to noise ratio is low more, and it is unreliable more that conveyer band discerption detects.
The utility model, it is the power that load-transfer device needs of tearing that the load-transfer device of operation is given the longitudinal force of the precipitous variation of frame by foreign matter, irrelevant with rotor inertia.Rotor inertia is strengthened signal amplitude and reduces to compare in the utility model and the prior art, can reach the purpose that improves signal to noise ratio and detecting reliability.
The purpose of this utility model can also realize by following measure: described force gauge is the Connection Element of frame and object of reference.For example be the Connection Element of frame of the frame of surveyed area and object of reference or Connection Element or the frames and the ground-surface Connection Element at frames middle part.Be provided with like this, during conveyer band discerption, the longitudinal force of precipitous variation can improve the breakdown signal output amplitude more by the force gauge as Connection Element, further reaches the purpose that improves signal to noise ratio and detecting reliability.
The purpose of this utility model can also realize by following measure: force gauge is installed on the frames.Detect the frame longitudinal force by the bending stress that detects frames.Be provided with like this, can improve the breakdown signal output amplitude, reach the purpose that improves signal to noise ratio and detecting reliability.
The purpose of this utility model can also realize by following measure: frame and object of reference have the free gap.This free gap is the free gap of frame and stands longitudinal junction or free gap or the frames and the ground-surface free gap at frames middle part.
When there was the free gap vertical junction of frame and frame, the free gap was divided into plurality of sections with frame, had blocked the transmission of longitudinal forces such as driving, tensioning.Normal condition, the detected interfering signal of force gauge only are the very little load-transfer device friction force of numerical value, disturb very little.During conveyer band discerption, when the longitudinal force of precipitous variation is transferred to the free gap of stands longitudinal junction along frame, the transmission of the longitudinal force of precipitous variation has been blocked in the free gap, makes the longitudinal force of precipitous variation more enter force gauge, improves the signal output amplitude.It is very little to add interference, can reach the purpose that improves signal to noise ratio and detecting reliability.
When there is the free gap at the middle part of frames, or frames and ground is when having the free gap, and the longitudinal force that can reduce precipitous variation imports ground by frames.During conveyer band discerption, the longitudinal force of precipitous variation can more enter force gauge, can improve the signal output amplitude, reaches the purpose that improves signal to noise ratio and detecting reliability.
Described free gap is the longitudinal oscillation connecting rod of the gap of the gap of bolt and bolt hole, rivet and rivet hole, the sliding block joint of stands longitudinal, frames, the rubber pad between the bolted connection, plastic mattress, timber pad.
The purpose of this utility model can also realize by following measure: when the utility model was applied to the conveyer of steel rope suspension carrying roller, described frame was to hang the steel rope of carrying roller, is connected in series force gauge in steel rope.Be provided with like this, can well detect the conveyer band discerption fault equally, reach the purpose that improves signal to noise ratio and detecting reliability.
Advantage of the present utility model:
1, the utility model has removed the interference of rotor inertia by detecting the longitudinal force of the precipitous variation of frame, can reach the purpose that improves signal to noise ratio and detecting reliability.
2, the utility model uses the measures such as frame that the free gap is arranged, and can accomplish the longitudinal force of the precipitous variation that only responds the conveyer band discerption generation, does not respond interfering signals such as material impulsive force, propulsive effort, tensile force; Can also accomplish not respond roller, load-transfer device, several tons even the upward interference of the rotor inertia of kiloton material above the load-transfer device, interfering signal is very little, and signal to noise ratio is very high, has ready conditions and carries out multistage warning, can detect the load-transfer device slight abnormality.For example: foreign matter is stuck on the load-transfer device, only begins to scratch load-transfer device.The load-transfer device of operation gives frame a longitudinal force that only surpasses interfering signal by foreign matter, forecast conveyer band discerption that just can be in a big way.This is that prior art is not accomplished.Again for example: the roller supporting tube bearing failure, the load-transfer device of operation is given longitudinal force of frame by roller supporting tube.Detect this very little longitudinal force, just can start the warning device of roller supporting tube bearing failure.This also is that prior art is not accomplished.
3, every group of force gauge can detect the conveyer band discerption fault in a zone; For baby conveyor, even can detect the fault of tearing of load-transfer device whole process.
4, the utility model is not changed or little change conveyer shelf structure, just can detect the conveyer band discerption fault.Because do not need mobile significantly physical construction, so failure rate of machinery is low.
5, can detect in a big way in the prior art of conveyer band discerption, when conveyer band discerption, most carefully reparation load-transfer devices that need conscientiously, conveyer band discerption detecting device could place in operation.The utility model removes foreign matter, and detecting device is place in operation once more just.
Description of drawings
The scheme drawing of Fig. 1, conveyer band discerption detecting device.
The middle part of Fig. 2, frames 2-1 has free gap, force gauge 1 to be the conveyer band discerption detecting device of attaching parts.
There is the free gap Fig. 3, frame and stands longitudinal junction, detect the conveyer band discerption detecting device of bending stress.
There is the free gap on Fig. 4, frame and ground, the conveyer band discerption detecting device of a plurality of force gauges are arranged.
Label declaration:
1, force gauge 2, frame
The frame of 2-1, frames 2-2, object of reference
The frames of the frame 2-4 of 2-3, surveyed area, installing force sensor
3, load-transfer device 4, longitudinal force
5, breach 6, foreign matter
7, bolt 8, rubber pad
9, connecting panel
The specific embodiment
The utility model compared with prior art, rotor inertia does not disturb the detection of conveyer band discerption, can reach the purpose that improves detecting reliability.
Normal condition, frame and stands longitudinal bonded assembly free gap have been blocked the transmission of longitudinal forces such as the driving, tensioning of load-transfer device.Force gauge detects has only the very little load-transfer device friction force of numerical value.
During conveyer band discerption, frames 2-1 has the free gap, seldom consumes the longitudinal force of precipitous variation.The bending stress that the longitudinal force of precipitous variation produces concentrates on the frames 2-4 of installing force sensor.Be provided with like this, can reach the purpose that improves signal to noise ratio and detecting reliability.
Normal condition, longitudinal forces such as load-transfer device driving, tensioning are essentially identical common-mode signals.Signal processor unit is with the signal subtraction of two force gauges 1 of vertical diverse location, and output approaches zero.Signal processor unit is output not.
During conveyer band discerption between two force gauges, one of force gauge bears pressure, and one is born pulling force, exports an increase, and a minimizing is bigger differential wave.Through signal processor unit, start acoustic-optic alarm or stopping alarm device.Because remove common mode interference, can reach the purpose that improves signal to noise ratio and detecting reliability.
In the drawings, though do not indicate the necessary circuitry such as amplification, power supply, transmission and signal processor unit of force gauge, should think that they exist.
The formation of described signal processor unit can be breakaway-element, micro controller system, programmable time controller and programmable logic device (PLD) (PLD).
Claims (5)
1. a conveyer band discerption detecting device is equipped with driving roller, changed course roller, roller supporting tube on the frame of belt conveyer (2); On driving roller, changed course roller, roller supporting tube, load-transfer device (3) is installed; Driving roller drives load-transfer device, and material is transported to the emptying point by movable loading point; It is characterized in that: the afterbody with conveyer is a departure point, and leaving on the later frame (2) of the changed course roller of conveyer afterbody has several force gauges (1); The stress deformation direction of the detection sensitive direction trend stands longitudinal power (4) of force gauge; Force gauge connects signal processor unit (10); Signal processor unit connects acoustic-optic alarm (14) or stopping alarm device (15); The signal that force gauge detects starts acoustic-optic alarm (14) or stopping alarm device (15) when surpassing the warning threshold of signal processor unit (10).
2. conveyer band discerption detecting device according to claim 1 is characterized in that: described force gauge (1) is the Connection Element of frame (2-1,2-3) and object of reference.
3. conveyer band discerption detecting device according to claim 1 is characterized in that: described force gauge (1) is installed in frames (2-4).
4. conveyer band discerption detecting device according to claim 1 is characterized in that: described frame (2-1,2-3) has the free gap with object of reference.
5. conveyer band discerption detecting device according to claim 1 is characterized in that: described frame (2) is to hang the steel rope of carrying roller, steel rope serial connection force gauge (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201475592U CN201068338Y (en) | 2007-04-30 | 2007-04-30 | Conveyer belt tearing detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201475592U CN201068338Y (en) | 2007-04-30 | 2007-04-30 | Conveyer belt tearing detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068338Y true CN201068338Y (en) | 2008-06-04 |
Family
ID=39489712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201475592U Expired - Fee Related CN201068338Y (en) | 2007-04-30 | 2007-04-30 | Conveyer belt tearing detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068338Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673978A (en) * | 2012-05-22 | 2012-09-19 | 莱芜钢铁集团有限公司 | Transmission equipment for conveying belt and tearing detection device for conveying belt |
| CN107512550A (en) * | 2017-09-27 | 2017-12-26 | 武汉摩林翰机电设备有限公司 | Conveyer belt damage monitoring device and method for belt conveyer |
| CN107758272A (en) * | 2017-10-18 | 2018-03-06 | 兖州煤业股份有限公司 | A kind of stress mornitoring system and method for conveyer belt |
| CN109399125A (en) * | 2018-10-10 | 2019-03-01 | 南安市天筹机械贸易有限公司 | A kind of conveyer belt overload warning device based on electric current induction and air thermal expansion |
| CN113320925A (en) * | 2021-06-18 | 2021-08-31 | 阳春新钢铁有限责任公司 | Protection method for preventing belt from being scratched and penetrated |
-
2007
- 2007-04-30 CN CNU2007201475592U patent/CN201068338Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673978A (en) * | 2012-05-22 | 2012-09-19 | 莱芜钢铁集团有限公司 | Transmission equipment for conveying belt and tearing detection device for conveying belt |
| CN102673978B (en) * | 2012-05-22 | 2015-02-11 | 莱芜钢铁集团有限公司 | Transmission equipment for conveying belt and tearing detection device for conveying belt |
| CN107512550A (en) * | 2017-09-27 | 2017-12-26 | 武汉摩林翰机电设备有限公司 | Conveyer belt damage monitoring device and method for belt conveyer |
| CN107758272A (en) * | 2017-10-18 | 2018-03-06 | 兖州煤业股份有限公司 | A kind of stress mornitoring system and method for conveyer belt |
| CN107758272B (en) * | 2017-10-18 | 2019-10-25 | 兖州煤业股份有限公司 | A kind of stress mornitoring system and method for conveyer belt |
| CN109399125A (en) * | 2018-10-10 | 2019-03-01 | 南安市天筹机械贸易有限公司 | A kind of conveyer belt overload warning device based on electric current induction and air thermal expansion |
| CN109399125B (en) * | 2018-10-10 | 2020-06-26 | 江门市南方输送机械工程有限公司 | Conveyer belt overload warning device based on current induction and air thermal expansion |
| CN113320925A (en) * | 2021-06-18 | 2021-08-31 | 阳春新钢铁有限责任公司 | Protection method for preventing belt from being scratched and penetrated |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20110430 |