CN108562254A - A kind of detection device and detection method that Sampling Machine size vehicle device tool is hampered - Google Patents
A kind of detection device and detection method that Sampling Machine size vehicle device tool is hampered Download PDFInfo
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- CN108562254A CN108562254A CN201810532042.8A CN201810532042A CN108562254A CN 108562254 A CN108562254 A CN 108562254A CN 201810532042 A CN201810532042 A CN 201810532042A CN 108562254 A CN108562254 A CN 108562254A
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- hampered
- displacement
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- big trolley
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a kind of detection devices that Sampling Machine size vehicle device tool is hampered, including runner assembly, are installed on the size car bottom of Sampling Machine and rotate synchronously；Position detection part, the rotation displacement information for detecting runner assembly；And control unit, for comparing the real-time rotational displacement in the unit interval with preset standard rotary displacement, and judge whether big trolley is hampered according to comparing result.The detection device of the present invention has many advantages, such as simple in structure and detects timely.The invention also discloses a kind of detection methods, including：S01, default standard displacement of the runner assembly within the unit interval；S02, during big trolley moves, in real time detect runner assembly rotational displacement；S03, real-time rotational displacement of the big trolley within the unit interval and standard rotary displacement are compared；When real-time rotational displacement be less than standard rotary displacement, then judge that size vehicle device tool is hampered.The detection method of the present invention has many advantages, such as fast response time.
Description
Technical field
The invention mainly relates to Sampling Machine technical field, refer in particular to a kind of detection device that Sampling Machine size vehicle device tool is hampered and
Detection method.
Background technology
In sampling from wagon machine size vehicle walking process, it will appear the case where machinery is hampered on track once in a while, it is most common
Situation is exactly that big trolley limit signal does not sense, big trolley is caused directly to hit limit position crash bearer.If Field Force
Such case cannot be found in time and presses equipment emergency stop switch, and lasting mechanical impact most likely results in appearance machinery damage
Wound, motor burn out even big trolley derailment accident.At Sampling Machine actual motion scene, big trolley limit switch often connects for inductance type
Closely switch, when installation site does not mix up or big carriage walking generation overshoot will occur big trolley and hit the limit close to switching
The case where position crash bearer, sampling operation personnel are often to hear that the strike note of " roars of laughter roars of laughter " just knows that big trolley has occurred machinery and has been hampered
Accident presses scram button emergency-stop device immediately；If device context does not have operator on duty, consequence will be hardly imaginable.How
It is hampered to the big trolley limit and is effectively detected, is shut down in time to avoid mechanical damage, it appears very necessary.
The way in industry is at present：Install big vehicle motor Thermomagetic circuit-breaker additional, Thermomagetic circuit-breaker has short circuit and overload
Defencive function, when size vehicle device tool is hampered, current of electric increases, and Thermomagetic circuit-breaker tripping, motor power-off stops, meanwhile, it is pyromagnetic
Auxiliary contacts of circuit breaker signal transmission to controller, controller triggering alarm makes a sound, and user is reminded to carry out troubleshooting
And restore.But in actual application, Thermomagetic circuit-breaker does not often trip or the trip time is long（10S or more）, lead
Cause big trolley constant impingement that accident occurs, when alarm occurrence time tool structure has often been damaged.The wherein work of Thermomagetic circuit-breaker
It is not belonging to short-circuit conditions when machinery is hampered with mainly short-circuit and overload protection, big vehicle motor is carried out to motor, will not produce
Stall situation or apparent mistake will not occur in motor when giving birth to short circuit current to be perceived by Thermomagetic circuit-breaker, while mechanical impact occurs
The phenomenon that carrying situation, actually occurring is the constantly skidding operation in orbit of big vehicle motor, and big trolley, which ceaselessly retreats to hit, to be prevented
Pier is hit, motor big locked rotor current will not occur and Thermomagetic circuit-breaker is driven to trip under this situation.As shown in Figure 1, for heat
The dropout curve of magnetic circuit breaker：When current of electric is in 1-1.5 times of rated current, drop-away time 10S to ∞, only when motor electricity
When stream is 15 times of rated current or more, drop-away time gets to 1S or less；The Sampling Machine size vehicle device tool constant impingement that is hampered is anti-
It hits under pier fault condition, for current of electric usually in 1-1.5 times or so of rated current, drop-away time is in 10S or more, or even occurs not
The case where dropout.
Invention content
The technical problem to be solved in the present invention is that：For technical problem of the existing technology, the present invention provides one
The detection device and detection method that the Sampling Machine size vehicle device tool simple in structure, at low cost, that accuracy of detection is high of kind is hampered.
In order to solve the above technical problems, technical solution proposed by the present invention is：
A kind of detection device that Sampling Machine size vehicle device tool is hampered, including
Runner assembly is installed on the size car bottom of Sampling Machine, and is rotated synchronously with the movement of big trolley；
Position detection part is installed on the runner assembly, the rotation displacement information for detecting runner assembly in real time；And
Control unit is connected with the position detection part, the real-time rotation displacement information for receiving position detection piece, by unit
Real-time rotational displacement in time is compared with preset standard rotary displacement, and judges the big of Sampling Machine according to comparing result
Whether trolley is hampered.
As a further improvement of the above technical scheme：
The runner assembly includes pulley and pulley base, and the pulley rotation is mounted in the pulley base, the pulley base peace
Mounted in the bottom of the big trolley.
The pulley base is mounted on the bottom of the big trolley by a mounting plate, the pulley base and the mounting plate it
Between be rotatablely connected by shaft, the torsional spring for the pulley to be compressed to big trolley track is arranged in the shaft.
The position detection part includes the rotary encoder being installed on the pulley.
Described control unit is PLC.
The invention also discloses a kind of detections for the detection device being hampered based on Sampling Machine size vehicle device tool as described above
Method includes the following steps：
S01, default standard displacement of the runner assembly within the unit interval；
S02, during Sampling Machine big trolley movement, detect the rotation displacement of runner assembly in real time by position detection part
Amount；
S03, control unit by real-time rotational displacement of the big trolley of Sampling Machine within the unit interval and standard rotary displacement into
Row comparison；When real-time rotational displacement be less than standard rotary displacement, then judge that the size vehicle device tool of the Sampling Machine is hampered.
As a further improvement of the above technical scheme：
The unit interval is 500ms~1500ms.
In step S03, real-time rotational displacement and standard rotary displacement are compared every 50ms~500ms.
When the size vehicle device tool of the Sampling Machine is hampered, stops the movement of big trolley and start alarm.
Compared with the prior art, the advantages of the present invention are as follows：
The detection device that the Sampling Machine size vehicle device tool of the present invention is hampered is rotated synchronously in the installation of size car bottom with big trolley
Runner assembly is detected the real-time rotation displacement information of runner assembly by position detection part, and will be in the unit interval
Real-time rotational displacement is compared with preset standard rotary displacement, real-time in the unit interval when size vehicle device tool is hampered
Rotational displacement can then be greatly decreased and be less than standard rotary displacement, to judge that machinery is hampered situation, stop in time big
The processing such as the movement or alarm of trolley avoid the equipment such as big trolley from frequently hitting crash bearer and damage；Structure of the detecting device is simple,
At low cost and accuracy of detection is high.
The detection method that the Sampling Machine size vehicle device tool of the present invention is hampered, equally with excellent described in detection device as above
Point, and it is easy to operate.
Description of the drawings
Fig. 1 is rated current-drop-away time graph of relation of Thermomagetic circuit-breaker in the prior art.
Fig. 2 is the implementation illustration of the detection device of the present invention in specific application.
Fig. 3 is the implementation illustration of position detection part in specific application in the present invention.
Fig. 4 is the detection method flow chart of the present invention.
Figure label indicates：1, Sampling Machine；101, big trolley；102, track；103, anticollision Guo；104, sampling head；2, turn
Dynamic component；201, mounting plate；202, pulley base；203, pulley；204, shaft；205, torsional spring；3, position detection part.
Specific implementation mode
Below in conjunction with Figure of description and specific embodiment, the invention will be further described.
As shown in Fig. 2, the detection device that the Sampling Machine size vehicle device tool of the present embodiment is hampered, including
Runner assembly 2 is installed on 101 bottom of big trolley of Sampling Machine 1 and is in contact with the track of big trolley 101 102, with size
Vehicle 101 is moved and is rotated synchronously；Wherein big trolley 101 belongs to conventional term in sampling from wagon machine 1, including cart and trolley, point
Not for realizing the movement on sampling head 104 in the horizontal plane two mutually perpendicular directions, to realize sampling head 104 in level
It moves and is sampled in face；
Position detection part 3 is installed on runner assembly 2, the rotation displacement information for detecting runner assembly 2 in real time；And
Control unit is connected with position detection part 3, the real-time rotation displacement information for receiving position detection piece 3, when by unit
Interior real-time rotational displacement is compared with preset standard rotary displacement, and judges the big of Sampling Machine 1 according to comparing result
Whether trolley 101 is hampered.
The detection device that the Sampling Machine size vehicle device tool of the present invention is hampered is installed in 101 bottom of big trolley with big trolley 101
The runner assembly 2 of synchronous rotation is detected the real-time rotation displacement information of runner assembly 2 by position detection part 3, and will
Real-time rotational displacement in unit interval is compared with preset standard rotary displacement, single when 101 machinery of big trolley is hampered
Real-time rotational displacement in the time of position can then be greatly decreased and be less than standard rotary displacement, to judge mechanical chance in time
Situation is hindered, stops the processing such as movement or the alarm of big trolley 101 in time, the equipment such as big trolley 101 is avoided frequently to hit crash bearer
103 and damage.
As shown in figure 3, in the present embodiment, runner assembly 2 includes pulley 203 and pulley base 202, and pulley 203 is rotatablely installed
In pulley base 202, wherein pulley base 202 is fixed on the bottom of big trolley 101, pulley base 202 and peace by a mounting plate 201
It is rotatablely connected by shaft 204 between loading board 201, torsional spring 205 is arranged in shaft 204, the process for being travelled in size vehicle
In, ensure that pulley 203 is in contact with track 102 always, to improve accuracy of detection, ensures the reliability that machinery is hampered.Wherein
Position detection part 3 includes then the rotary encoder mounted on 203 side of pulley, detects the rotation displacement information of pulley 203 in real time,
And it is sent to control unit（Such as PLC）Carry out comparison judgement.
As shown in figure 3, the present invention is further correspondingly disclosed and a kind of is hampered based on Sampling Machine size vehicle device tool as described above
The detection method of detection device, includes the following steps：
S01, default standard displacement of the runner assembly 2 within the unit interval；
S02, during 1 big trolley 101 of Sampling Machine moves, pass through position detection part 3 in real time detection runner assembly 2 rotation
Displacement；
S03, control unit are by real-time rotational displacement of the 1 big trolley 101 of Sampling Machine within the unit interval and standard rotary displacement
Amount is compared；When real-time rotational displacement is less than standard rotary displacement, then judge that the machinery of big trolley 101 of Sampling Machine 1 is met
Resistance.
In the present embodiment, the unit interval is 500ms~1500ms.
In the present embodiment, special type is, in step S03, by real-time rotational displacement and is marked every 50ms~500ms
Quasi- rotational displacement is compared.
In the present embodiment, when 101 machinery of big trolley of Sampling Machine 1 is hampered, stops the movement of big trolley 101 and start report
It is alert.
Specifically, the detection method of the present invention is described further with reference to a specific embodiment：
Step 1：Establish set of variables a（1）、a（2）、a（3）、a（4）、a（5）；It is arranged when big trolley 101 is normal at the uniform velocity to walk in 1S
Displacement be d.
Step 2：The count value b of record rotary encoder in real time；
Step 3：Using 5Hz signals rising edge as trigger signal, does following numerical value and transmit：a（1）=a（2）、a（2）=a（3）、a
（3）=a（4）、a（4）=a（5）、a（5）=b；Refresh a data per 200ms；
Step 4：Calculate walking displacement c=abs of the rotary encoder in nearest 1S（a（5）-a（1））.
Step 5：Compare c and d numerical relations, carries out 101 machinery of big trolley and be hampered judgement：If c≤K*d is determined as machine
Tool is hampered, stopping alarm, and wherein K*d is preset standard rotary displacement, and K is coefficient, preferably K=0.6；
When being detected, the testing time within 1S, can quick shutdown avoid mechanical damage, when taking K=0, the testing time is
1S, when taking K=0.4, testing time 600ms；When taking K=0.6, testing time 400ms, may be implemented completely failure and
When shut down require.Since each 200ms refreshes a data, distance value of walking in nearest 1S, the data when normal operation are calculated
Relatively stablize, must be that machinery occurs to be hampered failure when data be mutateds, data acquisition is interference-free, realizes accurately measurement.
In addition, directly acquiring the rotary encoder data of big trolley 101, machinery can be accurately rapidly completed by carrying out simple software operation
Be hampered detection, at low cost.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Range.
Claims (9)
1. a kind of detection device that Sampling Machine size vehicle device tool is hampered, which is characterized in that including
Runner assembly（2）, it is installed on Sampling Machine（1）Big trolley（101）Bottom, and with big trolley（101）It moves and synchronous turn
It is dynamic；
Position detection part（3）, it is installed on the runner assembly（2）On, for detecting runner assembly in real time（2）Rotation displacement letter
Breath；And
Control unit, with the position detection part（3）It is connected, for receiving position detection piece（3）Real-time rotation displacement information,
Real-time rotational displacement in unit interval is compared with preset standard rotary displacement, and judges to sample according to comparing result
Machine（1）Big trolley（101）Whether it is hampered.
2. the detection device that Sampling Machine size vehicle device tool according to claim 1 is hampered, which is characterized in that the rotating group
（2）Part includes pulley（203）And pulley base（202）, the pulley（203）It is rotatably installed in the pulley base（202）It is interior, it is described
Pulley base（202）Mounted on the big trolley（101）Bottom.
3. the detection device that Sampling Machine size vehicle device tool according to claim 2 is hampered, which is characterized in that the pulley base
（202）Pass through a mounting plate（201）Mounted on the big trolley（101）Bottom, the pulley base（202）With the mounting plate
（201）Between pass through shaft（204）Rotation connection, the shaft（204）On be arranged with for by the pulley（203）It compresses big
Trolley（101）Track（102）Torsional spring（205）.
4. the detection device that Sampling Machine size vehicle device tool according to claim 2 is hampered, which is characterized in that the position inspection
Survey part（3）Including being installed on the pulley（203）On rotary encoder.
5. the detection device that Sampling Machine size vehicle device tool as claimed in any of claims 1 to 4 is hampered, feature exist
In described control unit PLC.
6. a kind of inspection for the detection device that the Sampling Machine size vehicle device tool based on described in any one of claim 1 to 5 is hampered
Survey method, which is characterized in that include the following steps：
S01, default runner assembly（2）Standard displacement within the unit interval；
S02, in Sampling Machine（1）Big trolley（101）In mobile process, pass through position detection part（3）Detection runner assembly in real time
（2）Rotational displacement；
S03, control unit are by Sampling Machine（1）Big trolley（101）Real-time rotational displacement within the unit interval and standard rotary
Displacement is compared；When real-time rotational displacement be less than standard rotary displacement, then judge the Sampling Machine（1）Big trolley
（101）Machinery is hampered.
7. detection method according to claim 6, which is characterized in that the unit interval is 500ms~1500ms.
8. detection method according to claim 6, which is characterized in that, will be real every 50ms~500ms in step S03
When rotational displacement compared with standard rotary displacement.
9. the detection method according to any one of claim 6 to 8, which is characterized in that in the Sampling Machine（1）It is big
Trolley（101）When machinery is hampered, stop big trolley（101）Movement and start alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810532042.8A CN108562254A (en) | 2018-05-29 | 2018-05-29 | A kind of detection device and detection method that Sampling Machine size vehicle device tool is hampered |
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| CN201810532042.8A CN108562254A (en) | 2018-05-29 | 2018-05-29 | A kind of detection device and detection method that Sampling Machine size vehicle device tool is hampered |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238773A (en) * | 2018-12-06 | 2019-01-18 | 长沙开元仪器有限公司 | A kind of device for preventing rotation and sampling system |
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| CN105066864A (en) * | 2015-08-10 | 2015-11-18 | 山西太钢不锈钢股份有限公司 | Rolling mill position sensor running state detection method |
| CN205426549U (en) * | 2016-03-16 | 2016-08-03 | 许昌禹龙发电有限责任公司 | Quick -witted dolly anti -tilt protection device of factory's coal sampling is gone into to bridge type car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200996904Y (en) * | 2006-05-19 | 2007-12-26 | 罗旭东 | Lift preventer of trolley for coal sampler |
| CN101319914A (en) * | 2008-07-17 | 2008-12-10 | 南京通晟自控系统有限公司 | Roller type rail-moving machine-walking position detection apparatus |
| CN202011638U (en) * | 2010-12-16 | 2011-10-19 | 中国神华能源股份有限公司 | Mounting structure of position detecting device of walking machine |
| CN103512585A (en) * | 2013-01-22 | 2014-01-15 | 山西长治维特衡器有限公司 | Big-small vehicle positioner of sampling system |
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| CN105066864A (en) * | 2015-08-10 | 2015-11-18 | 山西太钢不锈钢股份有限公司 | Rolling mill position sensor running state detection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238773A (en) * | 2018-12-06 | 2019-01-18 | 长沙开元仪器有限公司 | A kind of device for preventing rotation and sampling system |
| CN109238773B (en) * | 2018-12-06 | 2024-05-24 | 长沙开元仪器有限公司 | Anti-rotation device and sampling system |
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