CN201305347Y - Differential speed protection device of coal conveying system transmission belt - Google Patents
Differential speed protection device of coal conveying system transmission belt Download PDFInfo
- Publication number
- CN201305347Y CN201305347Y CNU2008202221225U CN200820222122U CN201305347Y CN 201305347 Y CN201305347 Y CN 201305347Y CN U2008202221225 U CNU2008202221225 U CN U2008202221225U CN 200820222122 U CN200820222122 U CN 200820222122U CN 201305347 Y CN201305347 Y CN 201305347Y
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- China
- Prior art keywords
- speed sensor
- processing circuit
- speed
- feed belt
- differential
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Abstract
The utility model discloses a differential speed protection device of a transmission belt in coal conveying system, which comprises a speed sensor A and a speed sensor B, a single processing circuit A and a single processing circuit B, and a controller, wherein the speed sensor A and the speed sensor B are used for detecting the operation speed of working face and non-working face of the coal conveying system transmission belt; the single processing circuit A and the single processing circuit B are used for processing the speeds of two routes detected by the speed sensor A and the speed sensor B; and the controller is used for comparing and analyzing the speed singles of two routes processed by the single processing circuit A and the single processing circuit B, and correspondingly controlling the stop of the driving motor based on the difference value of the two speed singles. The speed sensor A and the speed sensor B are separately connected with the single processing circuit A and the single processing circuit B, and the single processing circuit A and the single processing circuit B are connected with the controller at the same time. The differential speed protection device has simple and reasonable structure, thus being simple and convenient to use. The differential speed protection device can effectively prevent the abnormal condition that the transmission belt may be torn and correspondingly can take the protection measures, thus greatly prolonging the service life of the transmission belt.
Description
Technical field
The utility model relates to a kind of differential fender guard, especially relates to a kind of coal handling system feed belt differential fender guard.
Background technology
At present, known coal handling system feed belt fender guard all is the protection of being carried out after being torn at feed belt, but generally all far away with the distance that is torn the position owing to tearing measuring point, thereby the shutdown of can't reporting to the police in the very first time.In addition; in actual use; when situations such as local friction drags such as belt scratches, local carrying roller is stuck are big; existing feed belt fender guard does not then have corresponding monitoring and safeguard procedures and supporting fender guard; all be passive protection mostly; and can not accomplish actv. protection in advance in advance, thereby influenced the service life of feed belt to a great extent.Because there is elastic tensor in feed belt, when the local scuffing of belt, will produce the antisymmetry elastic tensor, will make like this to produce differential between driving surface and the non-working surface, thereby finally cause feed belt to be torn.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art; a kind of coal handling system feed belt differential fender guard is provided; it is simple and reasonable and use easy and simple to handle; can effectively prevent the also corresponding safeguard procedures of taking to the unusual condition that feed belt may be torn, thereby prolong the service life of feed belt greatly.
For solving the problems of the technologies described above; the technical solution adopted in the utility model is: a kind of coal handling system feed belt differential fender guard; it is characterized in that: comprise speed sensor one and speed sensor two that the running velocity to coal handling system feed belt driving surface and non-working surface detects respectively; signal processing circuit one that speed sensor one and the speed sensor two two-way speed signal that detects are handled and signal processing circuit two and treated two-way speed signal compared analyzed and according to the two the controller of drive motor stall of the corresponding control feed belt of difference respectively; speed sensor one and speed sensor two connect described signal processing circuit one and signal processing circuit two respectively, and described signal processing circuit one and signal processing circuit two connect described controller simultaneously.
Also comprise the warning device of controlling by described controller.
Described controller is the DCS controller.
Described controller is the PLC Programmable Logic Controller.
Described speed sensor one and speed sensor two are digital sensor, and described signal processing circuit one and signal processing circuit two are respectively speed transmitter one and speed transmitter two.
Described speed sensor one and speed sensor two are SM39SP principal velocity sensor.
Described speed sensor one and speed sensor two are installed in respectively on the live roller one and live roller two that driving surface and non-working surface are driven.
Described speed sensor one and speed sensor two are corresponding respectively to be installed on the axle drive shaft of live roller one and live roller two.
Between the frame that described speed sensor one and speed sensor two and described feed belt are installed damping spring is installed all.
Be connected to meter speed meter one between described signal processing circuit one and the controller, be connected to meter speed meter two between described signal processing circuit two and the controller.
The utility model compared with prior art has the following advantages, and 1, not only simple in structure, processing and fabricating is convenient, small investment and use easy and simple to handle; 2, by the driving surface to the coal handling system feed belt is that top feed belt and non-working surface are that the transfer rate of lower circuit belt detects in real time, because live roller and belt movement are synchronous, then directly the running velocity of pair roller is gathered, then two speed sensors are installed in respectively on the axle drive shaft of the live roller that feed belt driving surface and non-working surface are driven, and used speed sensor integral quakeproof, belt tension is minimum to the influence of speed sensor like this, speed sensor is signal collected accurately, in time, the measured two-way speed signal of speed sensor inputs to the meter speed meter and shows synchronously behind the speed transmitter, again the two-way speed signal is delivered to the PLC Programmable Logic Controller simultaneously afterwards, the PLC Programmable Logic Controller then compares the two-way speed signal in real time and analyzes and according to the two the drive motor and the warning device of the corresponding control feed belt of difference, when the corresponding shutdown of reporting to the police during more than or equal to 0.25m/s (difference of promptly reporting to the police) of the absolute value of the two difference, in the actual application, according to concrete actual conditions the warning difference of two-way speed signal is carried out respective settings, report to the police to shut down that the back operations staff is then corresponding to carry out inspection on the scene, safeguard; 3, the staff also can show by the real-time control of visual control device to differential situation between feed belt driving surface and non-working surface, correspondingly make corresponding preventive, and overhaul again after needn't waiting until the shutdown of reporting to the police, thereby the utility model driving surface that can occur at feed belt and the differential situation between non-working surface report to the police in real time indication and corresponding control, effectively avoided feed belt because overload or coerced and the phenomenon that reaches limit value and finally be torn, effectively prevented the accident generation, greatly reduce breakdown rate, improved burst reliability of system operation really, reach and prolong feed belt service life, prevent purposes such as accident diffusion, economical and practical; 4, the utility model also can promote the use of the other technologies field, realizes the differential protection.To sum up; the utility model can effectively prevent the problem of the speed inequality that feed belt causes because of the big caused scuffing of local friction drag and because of feed belt each point unbalance stress in operational process; can prevent belt to tear; and pinpoint the problems and report to the police shutdown synchronously in the very first time; in a word; can effectively prevent the also corresponding safeguard procedures of taking to the multiple differential unusual condition of feed belt, thereby prolong the service life of feed belt greatly.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a circuit block diagram of the present utility model.
Description of reference numerals:
1-driving surface; 2-non-working surface; 3-speed sensor one;
4-speed sensor two; 5-PLC Programmable Logic Controller; 6-speed transmitter one;
7-speed transmitter two; 8-drive motor; 9-live roller one;
10-live roller two; 11-meter speed meter one; 12-meter speed meter two;
13-frame; 14-driving wheel; 15-flower wheel;
16-warning device.
The specific embodiment
As Fig. 1, shown in Figure 2, the utility model comprises speed sensor 1 and the speed sensor 24 that the running velocity to coal handling system feed belt driving surface 1 and non-working surface 2 detects respectively, signal processing circuit one that speed sensor 1 and the speed sensor 24 two-way speed signal that detects are handled and signal processing circuit two and treated two-way speed signal compared analyzed and according to the two the controller of drive motor 8 stalls of the corresponding control feed belt of difference respectively, wherein, speed sensor 1 and speed sensor 24 connect described signal processing circuit one and signal processing circuit two respectively, and described signal processing circuit one and signal processing circuit two connect described controller simultaneously.In addition, also comprise the warning device of controlling by described controller 16.Described feed belt is installed on the frame 13, and drive motor 8 is installed in the right part of frame 13, and described feed belt right part is that driving wheel 14 and its left part are flower wheel 15.In the present embodiment, described controller is a PLC Programmable Logic Controller 5, described speed sensor 1 and speed sensor 24 are digital sensor, described signal processing circuit one and signal processing circuit two are respectively speed transmitter 1 and speed transmitter 27, and speed sensor 1 and speed sensor 24 are SM39SP principal velocity sensor.In the actual use, described controller also can be the DCS controller, promptly also can realize control by the DCS controller.
In the actual installation process, described speed sensor 1 and speed sensor 24 are installed in respectively on the live roller 1 and live roller 2 10 that driving surface 1 and non-working surface 2 are driven, and corresponding respectively being installed on the axle drive shaft of live roller 1 and live roller 2 10.In addition, between the frame 12 that speed sensor 1 and speed sensor 24 and described feed belt are installed damping spring is installed all, and be to be connected to meter speed meter 1 between speed transmitter 1 and the PLC Programmable Logic Controller 5 between described signal processing circuit one and the controller, be to be connected to meter speed meter 2 12 between speed transmitter 27 and the PLC Programmable Logic Controller 5 between described signal processing circuit two and the controller.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (10)
1. coal handling system feed belt differential fender guard; it is characterized in that: comprise speed sensor one (3) and speed sensor two (4) that the running velocity to coal handling system feed belt driving surface (1) and non-working surface (2) detects respectively; signal processing circuit one that speed sensor one (3) and speed sensor two (4) the two-way speed signals that detect are handled and signal processing circuit two and treated two-way speed signal compared analyzed and according to the two the controller of drive motor (8) stall of the corresponding control feed belt of difference respectively; speed sensor one (3) and speed sensor two (4) connect described signal processing circuit one and signal processing circuit two respectively, and described signal processing circuit one and signal processing circuit two connect described controller simultaneously.
2. according to the described coal handling system feed belt of claim 1 differential fender guard, it is characterized in that: also comprise the warning device of controlling by described controller (16).
3. according to claim 1 or 2 described coal handling system feed belt differential fender guards, it is characterized in that: described controller is the DCS controller.
4. according to claim 1 or 2 described coal handling system feed belt differential fender guards, it is characterized in that: described controller is PLC Programmable Logic Controller (5).
5. according to the described coal handling system feed belt of claim 4 differential fender guard; it is characterized in that: described speed sensor one (3) and speed sensor two (4) are digital sensor, and described signal processing circuit one and signal processing circuit two are respectively speed transmitter one (6) and speed transmitter two (7).
6. according to the described coal handling system feed belt of claim 5 differential fender guard, it is characterized in that: described speed sensor one (3) and speed sensor two (4) are SM39SP principal velocity sensor.
7. according to claim 1 or 2 described coal handling system feed belt differential fender guards, it is characterized in that: described speed sensor one (3) and speed sensor two (4) are installed in respectively on the live roller one (9) and live roller two (10) that driving surface (1) and non-working surface (2) are driven.
8. according to the described coal handling system feed belt of claim 6 differential fender guard, it is characterized in that: described speed sensor one (3) and speed sensor two (4) correspondence respectively are installed on the axle drive shaft of live roller one (9) and live roller two (10).
9. according to claim 1 or 2 described coal handling system feed belt differential fender guards, it is characterized in that: between the frame (12) that described speed sensor one (3) and speed sensor two (4) and described feed belt are installed damping spring is installed all.
10. according to claim 1 or 2 described coal handling system feed belt differential fender guards; it is characterized in that: be connected to meter speed meter one (11) between described signal processing circuit one and the controller, be connected to meter speed meter two (12) between described signal processing circuit two and the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202221225U CN201305347Y (en) | 2008-10-29 | 2008-10-29 | Differential speed protection device of coal conveying system transmission belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202221225U CN201305347Y (en) | 2008-10-29 | 2008-10-29 | Differential speed protection device of coal conveying system transmission belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305347Y true CN201305347Y (en) | 2009-09-09 |
Family
ID=41097811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202221225U Expired - Fee Related CN201305347Y (en) | 2008-10-29 | 2008-10-29 | Differential speed protection device of coal conveying system transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201305347Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823616A (en) * | 2010-04-26 | 2010-09-08 | 徐州中部矿山设备有限公司 | Integrated information display device of belt breakage protector |
| CN101879982A (en) * | 2010-05-18 | 2010-11-10 | 云南大红山管道有限公司 | Solid material conveying device capable of preventing belt from tension fracture |
| CN105501886A (en) * | 2014-09-22 | 2016-04-20 | 沈阳铝镁设计研究院有限公司 | Belt conveyor slippage and fracture detection device |
| CN105923349A (en) * | 2016-06-29 | 2016-09-07 | 天津百利阳光环保设备有限公司 | Safety detection warning system for conveyor |
-
2008
- 2008-10-29 CN CNU2008202221225U patent/CN201305347Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823616A (en) * | 2010-04-26 | 2010-09-08 | 徐州中部矿山设备有限公司 | Integrated information display device of belt breakage protector |
| CN101879982A (en) * | 2010-05-18 | 2010-11-10 | 云南大红山管道有限公司 | Solid material conveying device capable of preventing belt from tension fracture |
| CN105501886A (en) * | 2014-09-22 | 2016-04-20 | 沈阳铝镁设计研究院有限公司 | Belt conveyor slippage and fracture detection device |
| CN105923349A (en) * | 2016-06-29 | 2016-09-07 | 天津百利阳光环保设备有限公司 | Safety detection warning system for conveyor |
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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: 20090909 Termination date: 20111029 |