CN213120759U - Non-contact pulse type speed measuring device of electronic belt scale - Google Patents
Non-contact pulse type speed measuring device of electronic belt scale Download PDFInfo
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- CN213120759U CN213120759U CN202022443470.9U CN202022443470U CN213120759U CN 213120759 U CN213120759 U CN 213120759U CN 202022443470 U CN202022443470 U CN 202022443470U CN 213120759 U CN213120759 U CN 213120759U
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Abstract
The utility model discloses an electronic belt scale non-contact pulsed speed sensor, including detecting the piece, signal trigger device and support, it fixes on belt scale's belt or belt roller and rotates rather than synchronous to detect the piece, when detecting the piece through signal trigger device, signal trigger device sends a pulse signal, can confirm belt speed according to the pulse signal in the unit interval, this speed sensor need not with belt rotating part direct contact, therefore avoid rotating the card and pause, and the measuring error that the connecting axle fracture caused, signal trigger device output pulse signal stability is higher than original continuous analog signal, and the strong difficult interference of pulse feedback signal, components and parts are not fragile, low maintenance cost.
Description
Technical Field
The utility model relates to a measuring equipment field specifically is an electronic belt conveyor scale non-contact pulsed speed sensor.
Background
The electronic belt scale is a metering device for continuously and automatically weighing materials in the process of conveying solid bulk materials by a belt, and can measure the instantaneous flow and the accumulated flow of the materials passing through the belt conveyor under the condition of not interrupting the materials. The electronic belt weigher is generally provided with a bearing device, a bearing sensor, a speed sensor and a weighing display controller, and the speed sensor generally uses an analog tachogenerator type speed sensor.
But the transmission carrier roller of the prior belt scale is easy to jam in rotation, so that the transmission output is unstable, the belt speed is inaccurate to measure, and the material measurement error of the electronic belt scale is caused. And the analog tachogenerator sensor has high cost, complex structure, easily damaged tachogenerator, low feedback voltage ratio and poor anti-interference capability.
SUMMERY OF THE UTILITY MODEL
Problem to exist among the prior art, the utility model provides an electronic belt conveyor scale non-contact pulsed speed sensor solves the problem that analog formula tachogenerator formula tachometer sensor poor stability fault rate is high.
The utility model discloses a realize through following technical scheme:
a non-contact pulse type speed measuring device of an electronic belt scale comprises a detection block and a signal trigger device;
the belt conveyor belt speed detection device is characterized in that the detection block is mounted on a transmission part of the belt conveyor belt scale and moves synchronously, the signal trigger device is arranged on one side of the belt conveyor belt scale and is positioned on a movement track of the detection block, when the detection block passes through the signal trigger device, the signal trigger device sends out a pulse signal, and the belt speed is obtained according to the number of the pulse signals in unit time.
Preferably, the transmission component is a belt or a belt roller.
Preferably, the detection block is arranged on the end face of the belt roller, and the signal trigger device is arranged at the end part of the belt roller.
Preferably, the detection block is arranged on the side face of the belt, and the signal trigger device is flush with the belt at the top or the bottom of the belt roller.
Preferably, the signal trigger device is arranged on one side of the belt scale through a bracket.
Preferably, the signal triggering device is connected with a belt scale controller, and the belt scale controller is used for recording the number of the pulse signals.
Preferably, the signal triggering device is a proximity switch.
Preferably, the detection block is a metal block.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a pair of electronic belt scale non-contact pulsed speed sensor, including detecting the piece, signal trigger device and support, it fixes on belt scale's belt or belt roller and rotates rather than synchronous to detect the piece, when detecting the piece through signal trigger device, signal trigger device sends a pulse signal, can confirm belt speed according to the pulse signal in the unit interval, this speed sensor need not with belt rotating part direct contact, therefore avoid rotating the card and pause, and the measuring error that the connecting axle fracture caused, signal trigger device output pulse signal stability is higher than original continuous analog signal, and the strong difficult interference of pulse feedback signal, components and parts are not fragile, low maintenance cost.
Drawings
Fig. 1 is a schematic structural diagram of the speed measuring device of the present invention.
In the figure: 1. a belt roller; 2. a metal block; 3. a proximity switch; 4. and (4) a bracket.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.
Referring to fig. 1, a non-contact pulse type speed measuring device for an electronic belt scale includes a detecting block, a signal trigger device and a 4-bracket.
The detection block is arranged on a belt or a belt roller, the signal trigger device is arranged on one side of the belt scale through the support 4 and is positioned on the motion track of the detection block, when the detection block passes through the signal trigger device, the signal trigger device sends out a pulse signal, and the speed of the belt is obtained according to the number of the pulse signals in unit time.
Above-mentioned belt weigher includes two belt rollers 1, and around the belt of dress on two belt rollers, it installs on the terminal surface of belt roller to detect the piece, signal trigger device passes through the support setting at the tip of belt roller, rotate the round when the belt roller, detect the synchronous round that rotates of piece simultaneously, move to signal trigger device when detecting the piece, signal trigger device sends a pulse signal, signal trigger device and belt weigher instrument are connected, the belt weigher instrument is used for the quantity of record pulse signal and the operating time of belt, because the belt rotates a week and the belt roller rotates a week ratio and is the fixed value, and then detect the length that pulse number multiplies fixed value and belt according to the unit interval, then when dividing with the time, just can calculate the speed of belt.
In another embodiment, the detecting block is fixedly arranged on the side surface of the belt, the signal trigger device is arranged on the movement track of the belt, when the belt rotates for one circle, the detecting block synchronously rotates for one circle, when the detecting block moves to the signal trigger device, the signal trigger device sends out a pulse signal, and the speed of the belt can be calculated according to the number of detected pulses in unit time.
The detection block is a metal block 2.
The signal trigger device is a proximity switch 3, preferably of PNP or NPN type.
When the rotating magnet is aligned horizontally with the proximity switch, the proximity switch 3 generates a high level, corresponding to a pulse signal, which is received and recorded by the belt scale meter.
In yet another embodiment, the speed of the belt may be determined by the following method.
Firstly, calibrating the stable speed of a normal working belt by using a belt scale instrument, and then acquiring the pulse quantity A within a unit time under the stable speed of the belt scale in a normal state by using the speed measuring device.
Secondly, the pulse number B of the belt scale to be measured in unit time is obtained by adopting the speed measuring device.
It should be noted that the types of the belt weighers which normally work and the belt weighers to be measured need to be the same, and meanwhile, the installation positions of the speed measuring devices on the two belt weighers are the same, so that the measurement accuracy can be guaranteed.
And calculating the ratio of the pulse quantity A to the pulse quantity B to obtain a real-time belt speed value, thereby calculating the coal quantity on the belt weigher.
This electronic belt scale non-contact pulsed speed sensor need not rotate partial direct contact with the belt, therefore avoids rotating the measuring error that the card dun caused, and signal trigger device output pulse signal stability is higher than original continuous analog signal, and the strong difficult interference of pulse feedback signal, components and parts are not fragile, and maintenance cost is cheap.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (8)
1. A non-contact pulse type speed measuring device of an electronic belt scale is characterized by comprising a detection block and a signal trigger device;
the belt conveyor belt speed detection device is characterized in that the detection block is mounted on a transmission part of the belt conveyor belt scale and moves synchronously, the signal trigger device is arranged on one side of the belt conveyor belt scale and is positioned on a movement track of the detection block, when the detection block passes through the signal trigger device, the signal trigger device sends out a pulse signal, and the belt speed is obtained according to the number of the pulse signals in unit time.
2. The non-contact pulse type speed measuring device of the electronic belt scale of claim 1, wherein the transmission component is a belt or a belt roller.
3. The non-contact pulse type speed measuring device of the electronic belt scale according to claim 2, wherein the detecting block is installed on the end face of the belt roller, and the signal triggering device is arranged at the end of the belt roller.
4. The non-contact pulse type speed measuring device of the electronic belt scale as claimed in claim 2, wherein the detecting block is installed on the side of the belt, and the signal triggering device is flush with the belt on the top or bottom of the belt roller.
5. The non-contact pulse type speed measuring device of the electronic belt scale as claimed in claim 1, wherein the signal triggering device is mounted on one side of the belt scale through a bracket.
6. The non-contact pulse type speed measuring device of the electronic belt scale as claimed in claim 1, wherein the signal triggering device is connected with a belt scale controller, and the belt scale controller is used for recording the number of pulse signals.
7. The non-contact pulse type speed measuring device of the electronic belt scale as claimed in claim 1, wherein the signal triggering device is a proximity switch.
8. The non-contact pulse type speed measuring device of the electronic belt scale of claim 7, wherein the detecting block is a metal block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022443470.9U CN213120759U (en) | 2020-10-28 | 2020-10-28 | Non-contact pulse type speed measuring device of electronic belt scale |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022443470.9U CN213120759U (en) | 2020-10-28 | 2020-10-28 | Non-contact pulse type speed measuring device of electronic belt scale |
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| CN213120759U true CN213120759U (en) | 2021-05-04 |
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| CN202022443470.9U Active CN213120759U (en) | 2020-10-28 | 2020-10-28 | Non-contact pulse type speed measuring device of electronic belt scale |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061727A (en) * | 2021-11-11 | 2022-02-18 | 吉林烟草工业有限责任公司 | Method for monitoring weighing abnormity of belt scale |
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2020
- 2020-10-28 CN CN202022443470.9U patent/CN213120759U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061727A (en) * | 2021-11-11 | 2022-02-18 | 吉林烟草工业有限责任公司 | Method for monitoring weighing abnormity of belt scale |
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