CN205602569U - Automatic protection system of belt conveyor tension - Google Patents

Abstract

The utility model discloses an automatic protection system of belt conveyor tension, including belt conveyor, the setting the main control system of belt conveyor aircraft nose with set up at the belt conveyor tail and be used for the automatic overspeed device tensioner of taut belt conveyor belt, be provided with tension sensor on the driving rope of the taut belt conveyor belt of automatic overspeed device tensioner, tension sensor's output termination has IF conversion module, IF conversion module communicates through seven core cables and main control system, belt conveyor's both sides evenly are provided with a plurality of voice processing module and a plurality of shutting module, a plurality of voice processing module and a plurality of shutting module all are connected with the main control system through seven core cables, the output termination of main control system has the display and is used for controlling belt conveyor and opens the conveyer control module who stops, IF conversion module includes a plurality of IF converting circuit. The utility model relates to a novelty, the sensitivity of tension data acquisition is high, and data transmission is reliable and stable, and the practicality is strong.

Description

A kind of ribbon conveyer tension force automatic protective system

Technical field

This utility model belongs to conveyer tension control technology field, is specifically related to a kind of ribbon conveyer and opens Power automatic protective system.

Background technology

Specify according to " safety regulations in coal mine ": prevailing traffic tunnel must be installed conveyer tension force and be declined guarantor Protection unit, the many employings of existing underground coal mine arrange travel switch in belt tensioning drum frame front, and by stroke Switching in parallel with the protection of tail sideslip, when tension force declines, after cylinder reach touching travel switch, switch is dynamic Making offset signals to be turned on, the protection of belt report sideslip is shut down simultaneously, it is achieved tension force declines protection, but, Owing to the most physical features of main shaft tail is low, the moist or serious seeping phenomenon in ground, environment extreme difference easily occur. During travel switch uses, contact moisture-sensitive is got rusty, and sensitivity is the highest, and misoperation is frequent, and tension force During decline, belt conveyer head can not show tension force situation, it is impossible to accurately whether resolution is that tension force decline protection is dynamic Make to cause shutting down；In order to accurately control conveyer tension force, occur in that belt conveyer head, tail respectively install with Too one switch of net, and over thousands of rice optical cable is laid along the line along belt, tail tension signal is passed through ether Network switch and fiber-optic transfer are to head belt master controller, it is achieved tension force declines to be protected, but Ethernet Switch and optical cable mounting cost are expensive, plant maintenance inconvenience.Therefore, a kind of structure letter is nowadays lacked List, low cost, reasonable in design, respond fast ribbon conveyer tension force automatic protective system, by Installation tension sensor on tight device transmission rope, uses the modular converter of signal to export tension pick-up Signal is nursed one's health, highly sensitive, it is to avoid misoperation.

Utility model content

Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to carry For a kind of ribbon conveyer tension force automatic protective system, it is novel in design rationally, simple in construction, tension force Data acquisition is highly sensitive, and data transmission is reliable and stable, practical, it is simple to promote the use of.

For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of belt conveying Machine tension force automatic protective system, including ribbon conveyer, the control that is arranged on described belt conveyer head Main frame processed and be arranged on described belt conveyor tail and for straining described ribbon conveyer belt Automatic takeup, it is characterised in that: described ribbon conveyer belt strained by described automatic takeup Transmission rope on be provided with tension pick-up, the outfan of tension pick-up is connected to I/F modular converter, I/F modular converter is communicated with controlling main frame by seven core cable, the both sides of described ribbon conveyer It is evenly arranged with multiple speech processing module and multiple lock modules, multiple speech processing module and multiple Lock modules is all connected with controlling main frame by seven core cable, and the outfan controlling main frame is connected to display With the conveyer control module for controlling described ribbon conveyer start and stop, I/F modular converter includes many Individual I/F change-over circuit.

Above-mentioned a kind of ribbon conveyer tension force automatic protective system, it is characterised in that: described I/F turns Change the quantity at least two of circuit, the outfan of tension pick-up and a described I/F change-over circuit Connect.

Above-mentioned a kind of ribbon conveyer tension force automatic protective system, also includes being arranged on ribbon conveyer The material level gauge of tail, it is characterised in that: the outfan of described material level gauge is changed with another described I/F Circuit connects.

Above-mentioned a kind of ribbon conveyer tension force automatic protective system, it is characterised in that: described I/F turns Change circuit and include amplifier U1, intervalometer CH7555, optical coupling isolator U2, two end interface P1 and three ends Interface P2, the in-phase input end of amplifier U1 is through resistance R5 and resistance R4 and the 1st of two end interface P1 the Pin connects, and the inverting input of amplifier U1 is through resistance R9 ground connection, resistance R5 and the company of resistance R4 The connection end of the fixing end connecing the sliding end and swept resistance R8 held with swept resistance R8 connects, Another fixing end ground connection of swept resistance R8, the outfan of amplifier U1 divides two-way, a road and slip The connection end of the sliding end of resistance R3 and one of swept resistance R3 fixing end connects, another Lu Yuding Time device CH7555 the connection end of the 2nd pin, the 6th pin and the 7th pin connect；Intervalometer CH7555 The 3rd pin connect with the sliding end of swept resistance R6, the fixing end of of swept resistance R6 is through electricity 8th pin of resistance R2 and intervalometer CH7555 connects, another fixing termination of swept resistance R6 Ground, the 5th pin of intervalometer CH7555 and the negative electrode phase of the input diode of optical coupling isolator U2 Connecing, the anode of the input diode of optical coupling isolator U2 connects through resistance R7 and 5V power supply, light The colelctor electrode of the outfan audion of coupling isolator U2 and the 2nd pin of three end interface P2 connect, light The emitter stage of the outfan audion of coupling isolator U2 and the connection end of the 3rd pin of three end interface P2 Ground connection, the 1st pin of three end interface P2 connects with 5V power supply.

Above-mentioned a kind of ribbon conveyer tension force automatic protective system, it is characterised in that: described three terminations 2nd pin of mouth P2 is connected with controlling main frame through seven core cable.

Above-mentioned a kind of ribbon conveyer tension force automatic protective system, it is characterised in that: described control is main Machine is computer.

This utility model compared with prior art has the advantage that

1, this utility model use seven core cable carry out tension signal transmission, seven core cable include tone frequency channel wire, Locking line, power line and data communication line, can transmit conveyer voice messaging along the line and operation is urgent In the case of conveyer shutdown action, additionally can by tail tension pick-up gather signal transmit to head, It is easy to promote the use of.

2, this utility model is by arranging tension pick-up, and tension pick-up is output as current signal, uses Current signal is converted to frequency signal by I/F change-over circuit to carry out wire signal and transmits to controlling main frame, real Existing tension force is protected automatically；I/F change-over circuit can be amplified multiple by swept resistance and regulate, and meets many The sensor planting output current signal carries out signal conversion, and reliable and stable, using effect is good.

3, this utility model is novel in design reasonable, and volume is little, highly sensitive, arranges display at head, Can the multiple data cases that detect on conveyer be shown at head, it is simple to the observation of staff, real Strong by property, it is simple to promote the use of.

In sum, this utility model is novel in design rationally, simple in construction, and tension data gathers sensitive Degree height, data transmission is reliable and stable, practical, it is simple to promote the use of.

Below by drawings and Examples, the technical solution of the utility model is done and further retouches in detail State.

Accompanying drawing explanation

Fig. 1 is schematic block circuit diagram of the present utility model.

Fig. 2 is the circuit theory diagrams of this utility model I/F change-over circuit.

Description of reference numerals:

1 tension pick-up；2 material level gauges；3 I/F modular converters；

4 speech processing module；5 lock modules；6 seven core cables；

7 control main frame；8 conveyer control modules；9 display.

Detailed description of the invention

As it is shown in figure 1, this utility model includes ribbon conveyer, is arranged on described ribbon conveyer machine The control main frame 7 of head and be arranged on described belt conveyor tail and for straining described ribbon conveyer The automatic takeup of belt, the transmission of described ribbon conveyer belt strained by described automatic takeup Being provided with tension pick-up 1 on rope, the outfan of tension pick-up 1 is connected to I/F modular converter 3, I/F modular converter 3 is communicated with controlling main frame 7 by seven core cable 6, described ribbon conveyer Both sides be evenly arranged with multiple speech processing module 4 and multiple lock modules 5, multiple speech processes Module 4 and multiple lock modules 5 are all connected with controlling main frame 7 by seven core cable 6, control main frame The outfan of 7 is connected to display 9 and controls mould for controlling the conveyer of described ribbon conveyer start and stop Block 8, I/F modular converter 3 includes multiple I/F change-over circuit.

In the present embodiment, the quantity at least two of described I/F change-over circuit, tension pick-up 1 Outfan and a described I/F change-over circuit connect.

During actual installation uses, lay seven core cable 6, Duo Geyu along the direction that ribbon conveyer extends Sound processing module 4 is laid from front to back along the length direction of institute's monitoring ribbon conveyer, and the most adjacent two Spacing between individual speech processing module 4 is 200m～300m, and multiple speech processing module 4 are gone here and there successively It is associated on the tone frequency channel wire of seven core cable 6；Multiple lock modules 5 are along the length of institute's monitoring ribbon conveyer Direction is laid from front to back, and the spacing between the most adjacent two lock modules 5 is 100m～150m, Multiple lock modules 5 are sequentially connected in series on the locking line of seven core cable 6；In belt conveyor tail position Putting the multiple I/F change-over circuits of installation, the signal input part of each I/F change-over circuit is respectively mounted one Its current signal is changed by the sensor of output current signal, is converted to frequency signal by seven core electricity The data communication line transmission of cable 6 is to controlling main frame 7, and tension pick-up 1 changes electricity with one of them I/F Road connects, and unnecessary I/F change-over circuit can retain as expansion interface.

In the present embodiment, also include the material level gauge 2 being arranged on belt conveyor tail, described material level gauge The outfan of 2 connects with I/F change-over circuit another described.

During practical operation uses, conveyer tail is coal bunker, in order to avoid coal bunker position in storehouse overflows, uses The material level gauge 2 of output current signal gathers coal bunker position in storehouse, and the current signal of collection is through other in which institute State I/F change-over circuit to connect, the frequency signal of conversion is passed by the data communication line of seven core cable 6 Transport to control main frame 7, complete function.

As in figure 2 it is shown, in the present embodiment, described I/F change-over circuit includes amplifier U1, intervalometer CH7555, optical coupling isolator U2, two end interface P1 and three end interface P2, the homophase of amplifier U1 is defeated Enter end to connect through the 1st pin of resistance R5 and resistance R4 and two end interface P1, amplifier U1 anti-phase Input is through the slip connecting end and swept resistance R8 of resistance R9 ground connection, resistance R5 and resistance R4 The connection end of one fixing end of end and swept resistance R8 connects, and another of swept resistance R8 is fixed End ground connection, the outfan of amplifier U1 divides two-way, and a road is electric with the sliding end of swept resistance R3 and slip The connection end of the fixing end of resistance one of R3 connects, the 2nd pin of another road and intervalometer CH7555, The connection end of the 6th pin and the 7th pin connects；3rd pin of intervalometer CH7555 and the electricity that slides The sliding end of resistance R6 connects, and the fixing end of of swept resistance R6 is through resistance R2 and intervalometer CH7555 The 8th pin connect, another fixing end ground connection of swept resistance R6, the of intervalometer CH7555 5 pins connect with the negative electrode of the input diode of optical coupling isolator U2, and optical coupling isolator U2's is defeated The anode entering to hold diode connects through resistance R7 and 5V power supply, the outfan three of optical coupling isolator U2 The colelctor electrode of pole pipe and the 2nd pin of three end interface P2 connect, the outfan three of optical coupling isolator U2 The emitter stage of pole pipe and the connection end ground connection of the 3rd pin of three end interface P2, the of three end interface P2 1 pin connects with 5V power supply.

In actually used, I/F change-over circuit is by swept resistance R8 and swept resistance R3 regulation input The amplification of signal, meets the conversion of the current signal of different range, and timed device CH7555 turns Exported by optical coupling isolator U2 after being changed to frequency signal, strong interference immunity.

In the present embodiment, the 2nd pin of described three end interface P2 is through seven core cable 6 and control main frame 7 Connect.

In the present embodiment, described control main frame 7 is computer.

When this utility model uses, the tail at ribbon conveyer arranges tension pick-up 1 and material level gauge 2 gather tension data and the coal bunker position in storehouse of tail, tension pick-up 1 and the thing that ribbon conveyer runs Position instrument 2 connects an I/F change-over circuit respectively to be changed current signal, and staff can pass through Multiple speech processing module 4 on the length direction of ribbon conveyer are reported without delay and are carried to control main frame 7 The running status that formula conveyer is along the line, when breaking down or injury to personnel in ribbon conveyer somewhere along the line, Conveyer lock operation can be carried out by the lock modules 5 on the length direction of ribbon conveyer, control Main frame 7 controls conveyer control module 8 makes ribbon conveyer jerk, tension pick-up 1 and material level gauge 2, and speech processing module 4 and lock modules 5 all by seven core cable 6 by ribbon conveyer transport Line parameter transmission, to controlling main frame 7, is shown in real time by display 9, and using effect is good.

The above, be only preferred embodiment of the present utility model, not makees this utility model any Limit, every according to this utility model technical spirit, above example is made any simple modification, Change and equivalent structure change, all still fall within the protection domain of technical solutions of the utility model.

Claims (6)

1. a ribbon conveyer tension force automatic protective system, including ribbon conveyer, be arranged on described The control main frame (7) of belt conveyer head and be arranged on described belt conveyor tail and for drawing The automatic takeup of tight described ribbon conveyer belt, it is characterised in that: described automatic takeup Straining and be provided with tension pick-up (1) on the transmission rope of described ribbon conveyer belt, tension force senses The outfan of device (1) is connected to I/F modular converter (3), and I/F modular converter (3) is by seven core electricity Cable (6) communicates with controlling main frame (7), and the both sides of described ribbon conveyer are evenly arranged with many Individual speech processing module (4) and multiple lock modules (5), multiple speech processing module (4) and Multiple lock modules (5) are all connected with controlling main frame (7) by seven core cable (6), control main The outfan of machine (7) is connected to display (9) and for controlling the conveying of described ribbon conveyer start and stop Machine control module (8), I/F modular converter (3) includes multiple I/F change-over circuit.

2. according to a kind of ribbon conveyer tension force automatic protective system described in claim 1, its feature It is: the quantity at least two of described I/F change-over circuit, the outfan of tension pick-up (1) Connect with a described I/F change-over circuit.

3., according to a kind of ribbon conveyer tension force automatic protective system described in claim 2, also include It is arranged on the material level gauge (2) of belt conveyor tail, it is characterised in that: described material level gauge (2) Outfan connects with I/F change-over circuit another described.

4. according to a kind of ribbon conveyer tension force automatic protective system described in claim 3, its feature Be: described I/F change-over circuit include amplifier U1, intervalometer CH7555, optical coupling isolator U2, Two end interface P1 and three end interface P2, the in-phase input end of amplifier U1 is through resistance R5 and resistance R4 Connect with the 1st pin of two end interface P1, the inverting input of amplifier U1 through resistance R9 ground connection, The sliding end connecting end and swept resistance R8 of resistance R5 and resistance R4 and one of swept resistance R8 The connection end of fixing end connects, another fixing end ground connection of swept resistance R8, the output of amplifier U1 End point two-way, a road and the sliding end of swept resistance R3 and the company of a fixing end of swept resistance R3 Connect end to connect, the 2nd pin, the 6th pin and the 7th pin of another road and intervalometer CH7555 Connect end to connect；3rd pin of intervalometer CH7555 connects with the sliding end of swept resistance R6, sliding One fixing end of galvanic electricity resistance R6 connects through the 8th pin of resistance R2 and intervalometer CH7555, sliding Another fixing end ground connection of galvanic electricity resistance R6, the 5th pin and the optical coupling isolator of intervalometer CH7555 The negative electrode of the input diode of U2 connects, the anode warp of the input diode of optical coupling isolator U2 Resistance R7 and 5V power supply connects, the colelctor electrode of the outfan audion of optical coupling isolator U2 and three ends 2nd pin of interface P2 connects, the emitter stage of the outfan audion of optical coupling isolator U2 and three ends The connection end ground connection of the 3rd pin of interface P2, the 1st pin of three end interface P2 and 5V power supply phase Connect.

5. according to a kind of ribbon conveyer tension force automatic protective system described in claim 4, its feature It is: the 2nd pin of described three end interface P2 connects with controlling main frame (7) through seven core cable (6) Connect.

6. according to a kind of ribbon conveyer tension force automatic protective system described in claim 1, its feature It is: described control main frame (7) is computer.