CN202848594U - Rotation speed sensor for mining belt conveyor - Google Patents
Rotation speed sensor for mining belt conveyor Download PDFInfo
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- CN202848594U CN202848594U CN 201220530346 CN201220530346U CN202848594U CN 202848594 U CN202848594 U CN 202848594U CN 201220530346 CN201220530346 CN 201220530346 CN 201220530346 U CN201220530346 U CN 201220530346U CN 202848594 U CN202848594 U CN 202848594U
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Abstract
A rotation speed sensor for a mining belt conveyor is composed of a magnetic element and a sensor circuit, the sensor circuit is used for detecting the periodic change of a magnetic field, wherein the magnetic element is embedded into the circumferential surface of a driven roller of the belt conveyor, the sensor circuit is installed on the outer side of the driven roller and closely adjacent to a fixing support of the magnetic element, and the magnetic element rotates along with the driven roller. The rotation speed of the driven roller can be detected to effectively detect the advancing speed of a conveyor belt, so that a host machine of a conveyor protective device acquires correlation data to compare the correlation data with the rotation speed of the driven roller, and then the loading weight of the conveyor belt is adjusted. Thus, overspeed and low-speed protection is achieved, equipment damage to belt conveyor and shortening of the service life are prevented from occurring.
Description
Technical field
The utility model relates to a kind of signal supervisory instrument, particularly relates to a kind of detecting device for detection of the belt conveyer mode of operation.
Background technology
Mine belt conveyor generally includes belt conveyor, driving roller, driven roller, driving roller is the critical component of belt conveyer, its effect is that the moment of torsion that actuating device provides is passed on the load-transfer device, be that frictionally carries out transmission between driving roller and the load-transfer device, and utilize the static friction force of belt conveyor to transmit material.Driven roller supports the carrying on the belt conveyor, with the front of belt conveyor and then rotation.
Load capacity on belt conveyor is excessive, can cause owing to transship so that occur skidding between driving roller and the belt conveyor, skidding stops belt conveyor or slows down, the actuating device that drives simultaneously the driving roller running is in long-time overload operation state, affects the service life of actuating device.Only detect the rotating speed of driving roller, often can not reflect the relative velocity between belt conveyor and driving roller.
The utility model content
The purpose of this utility model provides a kind of mine belt conveyor tachogen, is used for solving the technical matters that relative velocity can't detect between driving roller and belt conveyor.
Mine belt conveyor tachogen of the present utility model, formed by magnetics and sensor circuit, sensor circuit changed for detection of the cycle in magnetic field, wherein: in the circumferential surface of the driven roller of belt conveyer, embed magnetics, sensor circuit is installed in the driven roller outside, and on the fixed mount of next-door neighbour's magnetics, magnetics rotates with the driven voller cylinder.
Described sensor circuit comprises inductance coil, the first NAND gate, the second NAND gate, the first op amp, the second op amp, the 3rd op amp, aerotron, diode, green LED and red light emitting diodes;
The pin 1 that connects the second op amp behind the pin 1 series resistance R5 of pin 3, the first NAND gate of pin 1 connection second op amp of the first NAND gate; The pin 2 of pin 3, the second NAND gate of pin 2 connections second NAND gate of the first NAND gate connects the pin 1 rear series resistance R7 ground connection of the second NAND gate, the pin 3 series connection electrolysis capacitor C 3 of the first NAND gate and resistance R 7 rear ground connection; Working power series resistance R9, resistance R 8 and diode D5 are connected the pin 2 that connects the first NAND gate, ground connection behind working power series resistance R9 and the chemical capacitor C4;
The pin 2 shunt resistance R4 of the second op amp and capacitor C 2 rear ground connection connect working power behind the pin 2 series resistance R3 of the second op amp U1B; Ground connection behind the pin 1 series capacity C1 of pin 3, the second op amps of connection the first op amp behind the pin 1 series resistance R2 of the second op amp; Ground connection behind the pin 3 series resistance R6 of the second op amp U1B and the green LED D2; Contact resistance R1 between the pin 2 of the first op amp and the pin 3, series inductance coil L between the pin 1 of the first op amp and the pin 2;
Connect working power behind the pin 2 series resistance R10 of the 3rd op amp, ground connection behind the pin 2 series resistance R11 of the 3rd op amp, series resistance R12 between the pin 1 of pin 1, the three op amp of connection the 3rd op amp and the pin 3 behind the working power series resistance R9; The pin 3 of the first op amp connects the pin 3 of the 3rd op amp, the base stage of connecting triode D4 behind the pin 3 series resistance R13 of the 3rd op amp and the red light emitting diodes D3, the grounded emitter of aerotron D4, connect working power behind the collector series resistance R14 of aerotron D4, the collecting electrode of aerotron D4 is as the signal output part of tachogen;
The pin 4 of the first op amp connects working power, pin 5 ground connection; The pin 4 of the second op amp connects working power, pin 5 ground connection; The pin 4 of the 3rd op amp connects working power, pin 5 ground connection.
The utility model mine belt conveyor tachogen; can be by detecting the rotating speed of driven roller; effectively detect the speed of advance of belt conveyor; the rotating speed that makes conveyer fender guard main frame obtain correlation data and driving roller compares; and then the load capacity of belt conveyor adjusted; realize the protection of hypervelocity and low speed, avoid occurring belt conveyer device damage, shortening in service life.This mine belt conveyor tachogen consists of electromagnetic senser by magnetics, gathers number genus pulse switch formula of letter, has the characteristics such as the wide ranges of testing the speed, highly sensitive, good reliability, strong adaptability, and is easy to install.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Description of drawings
Fig. 1 is the structural representation of the utility model mine belt conveyor tachogen;
Fig. 2 is the circuit connection diagram of the utility model mine belt conveyor tachogen.
The specific embodiment
As shown in Figure 1, the utility model mine belt conveyor tachogen is comprised of magnetics A2 and sensor circuit A3, in the circumferential surface of the driven roller A1 of belt conveyer, embed magnetics A2, sensor circuit A3 is installed in the driven roller A1 outside, on the fixed mount of next-door neighbour's magnetics A2, magnetics A2 rotates with driven voller cylinder A1.
As shown in Figure 2, sensor circuit A3 comprises inductance coil L, the first NAND gate U2A, the second NAND gate U2B, the first op amp U1A, the second op amp U1B, the 3rd op amp U1C, aerotron D4, diode D5, green LED D2 and the red light emitting diodes D3 for the induced field change intensity;
The pin 1 that connects the second op amp U1B behind the pin 1 series resistance R5 of pin 3, the first NAND gate U2A of pin 1 connection the second op amp U1B of the first NAND gate U2A; The pin 2 of pin 3, the second NAND gate U2B of pin 2 connections the second NAND gate U2B of the first NAND gate U2A connects the pin 1 rear series resistance R7 ground connection of the second NAND gate U2B, the pin 3 series connection electrolysis capacitor C 3 of the first NAND gate U2A and resistance R 7 rear ground connection; Working power VCC series resistance R9, resistance R 8 and diode D5 are connected the pin 2 that connects the first NAND gate U2A, ground connection behind working power series resistance R9 and the chemical capacitor C4;
The pin 2 shunt resistance R4 of the second op amp U1B and capacitor C 2 rear ground connection connect working power VCC behind the pin 2 series resistance R3 of the second op amp U1B; Ground connection behind the pin 1 series capacity C1 of pin 3, the second op amp U1B of connection the first op amp U1A behind the pin 1 series resistance R2 of the second op amp U1B; Ground connection behind the pin 3 series resistance R6 of the second op amp (U1B) and the green LED D2; Contact resistance R1 between the pin 2 of the first op amp U1A and the pin 3, series inductance coil L between the pin 1 of the first op amp U1A and the pin 2;
Connect working power VCC behind the pin 2 series resistance R10 of the 3rd op amp U1C, ground connection behind the pin 2 series resistance R11 of the 3rd op amp U1C, series resistance R12 between the pin 1 of pin 1, the three op amp U1C of connection the 3rd op amp U1C and the pin 3 behind the working power VCC series resistance R9; The pin 3 of the first op amp U1A connects the pin 3 of the 3rd op amp U1C, the base stage of connecting triode D4 behind the pin 3 series resistance R13 of the 3rd op amp U1C and the red light emitting diodes D3, the grounded emitter of aerotron D4, connect working power VCC behind the collector series resistance R14 of aerotron D4, the collecting electrode of aerotron D4 is as the signal output part of tachogen.
The pin 4 of the first op amp U1A connects working power VCC, pin 5 ground connection; The pin 4 of the second op amp U1B connects working power VCC, pin 5 ground connection; The pin 4 of the 3rd op amp U1C connects working power VCC, pin 5 ground connection.
NAND gate circuit adopts 4011 family chips, and operation amplifier circuit adopts the LM324 chip.
In the use, driven roller A1 with belt conveyor before so that rotate, drive magnetics A2 and do cyclical movement, sensor circuit A3 changed by the cycle that magnet coil L detects magnetic-field intensity, to signal processor unit output cycle variable signal, signal processor unit just can obtain the velocity contrast of the relative driving roller of belt conveyor, produces corresponding control signal, the horsepower output of accessory drive is regulated the belt conveyor speed of advance.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (2)
1. mine belt conveyor tachogen, formed by magnetics (A2) and sensor circuit (A3), sensor circuit (A3) changed for detection of the cycle in magnetic field, it is characterized in that: in the circumferential surface of the driven roller (A1) of belt conveyer, embed magnetics (A2), sensor circuit (A3) is installed in driven roller (A1) outside, and on the fixed mount of next-door neighbour's magnetics (A2), magnetics (A2) rotates with driven voller cylinder (A1).
2. mine belt conveyor tachogen according to claim 1, it is characterized in that: described sensor circuit (A3) comprises inductance coil (L), the first NAND gate (U2A), the second NAND gate (U2B), the first op amp (U1A), the second op amp (U1B), the 3rd op amp (U1C), aerotron (D4), diode (D5), green LED (D2) and red light emitting diodes (D3);
The pin 1 that connects the second op amp (U1B) behind the pin 1 series resistance R5 of pin 3, the first NAND gate (U2A) of pin 1 connection second op amp (U1B) of the first NAND gate (U2A); The pin 2 of the first NAND gate (U2A) connects the pin 3 of the second NAND gate (U2B), the pin 2 of the second NAND gate (U2B) connects the pin 1 rear series resistance R7 ground connection of the second NAND gate (U2B), the pin 3 series connection electrolysis capacitor C 3 of the first NAND gate (U2A) and resistance R 7 rear ground connection; Working power (VCC) series resistance R9, resistance R 8 are connected the pin 2 that connects the first NAND gate (U2A) with diode D5, ground connection behind working power (VCC) series resistance R9 and the chemical capacitor C4;
The pin 2 shunt resistance R4 of the second op amp (U1B) and capacitor C 2 rear ground connection connect working power (VCC) behind the pin 2 series resistance R3 of the second op amp (U1B); Ground connection behind the pin 1 series capacity C1 of pin 3, the second op amps (U1B) of connection the first op amp (U1A) behind the pin 1 series resistance R2 of the second op amp (U1B); Ground connection behind the pin 3 series resistance R6 of the second op amp (U1B) and the green LED D2; Contact resistance R1 between the pin 2 of the first op amp (U1A) and the pin 3, series inductance coil L between the pin 1 of the first op amp (U1A) and the pin 2;
Connect working power (VCC) behind the pin 2 series resistance R10 of the 3rd op amp (U1C), ground connection behind the pin 2 series resistance R11 of the 3rd op amp (U1C), series resistance R12 between the pin 1 of pin 1, the three op amp (U1C) of connection the 3rd op amp (U1C) and the pin 3 behind working power (VCC) the series resistance R9; The pin 3 of the first op amp (U1A) connects the pin 3 of the 3rd op amp (U1C), the base stage of connecting triode D4 behind the pin 3 series resistance R13 of the 3rd op amp (U1C) and the red light emitting diodes D3, the grounded emitter of aerotron D4, connect working power (VCC) behind the collector series resistance R14 of aerotron D4, the collecting electrode of aerotron D4 is as the signal output part of tachogen;
The pin 4 of the first op amp (U1A) connects working power (VCC), pin 5 ground connection; The pin 4 of the second op amp (U1B) connects working power (VCC), pin 5 ground connection; The pin 4 of the 3rd op amp (U1C) connects working power (VCC), pin 5 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220530346 CN202848594U (en) | 2012-10-16 | 2012-10-16 | Rotation speed sensor for mining belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220530346 CN202848594U (en) | 2012-10-16 | 2012-10-16 | Rotation speed sensor for mining belt conveyor |
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| CN202848594U true CN202848594U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220530346 Expired - Fee Related CN202848594U (en) | 2012-10-16 | 2012-10-16 | Rotation speed sensor for mining belt conveyor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412140A (en) * | 2013-08-23 | 2013-11-27 | 青岛云路新能源科技有限公司 | System and method for measuring amorphous strip winding line speed |
| CN105173613A (en) * | 2015-09-29 | 2015-12-23 | 中国神华能源股份有限公司 | Device and method for detecting running speed of belt conveyer |
| CN111761868A (en) * | 2020-07-10 | 2020-10-13 | 常德仁和盛五金包装制品有限公司 | Full-automatic box pasting machine |
| US11691824B2 (en) | 2020-02-05 | 2023-07-04 | Cnh Industrial America Llc | Slip and wrap detection systems for a conveyor belt of an agricultural header |
-
2012
- 2012-10-16 CN CN 201220530346 patent/CN202848594U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412140A (en) * | 2013-08-23 | 2013-11-27 | 青岛云路新能源科技有限公司 | System and method for measuring amorphous strip winding line speed |
| CN105173613A (en) * | 2015-09-29 | 2015-12-23 | 中国神华能源股份有限公司 | Device and method for detecting running speed of belt conveyer |
| US11691824B2 (en) | 2020-02-05 | 2023-07-04 | Cnh Industrial America Llc | Slip and wrap detection systems for a conveyor belt of an agricultural header |
| CN111761868A (en) * | 2020-07-10 | 2020-10-13 | 常德仁和盛五金包装制品有限公司 | Full-automatic box pasting machine |
| CN111761868B (en) * | 2020-07-10 | 2022-01-04 | 常德仁和盛五金包装制品有限公司 | Full-automatic box pasting machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20161016 |