CN107244538A - Transport the urgent prevention and control system and method for coal belt fracture - Google Patents
Transport the urgent prevention and control system and method for coal belt fracture Download PDFInfo
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- CN107244538A CN107244538A CN201710643939.3A CN201710643939A CN107244538A CN 107244538 A CN107244538 A CN 107244538A CN 201710643939 A CN201710643939 A CN 201710643939A CN 107244538 A CN107244538 A CN 107244538A
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- prevention
- coal belt
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- control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0275—Damage on the load carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
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Abstract
The urgent prevention and control system and method for coal belt fracture is transported the invention discloses one kind, the system includes ribbon conveyer remote console and multiple prevention and control protection devices, and prevention and control protection device includes detection agency, clamping machine and control box；The method comprising the steps of：The first, belt fracture sinking distance threshold is set；2nd, damping is initialized；3rd, eddy current displacement sensor is detected to the real-time range of metallic plate and show real-time range；4th, judge whether fortune coal belt is broken；5th, current prevention and control protection device, which is alarmed and locked, transports coal belt；6th, transmitting fault information；7th, remaining prevention and control protection device braking ribbon conveyer；8th, ribbon conveyer is braked comprehensively.The present invention obtains fortune coal belt fracture information by eddy current displacement sensor and metallic plate sensing; accurate positioning, sensing is accurate, is applicable reliable; fortune coal belt is promptly pressed and by clamping machine clamping fortune coal belt, protection ribbon conveyer operation safety using damping driving montant.
Description
Technical field
The invention belongs to transport coal belt fracture Control Technology field, and in particular to the urgent prevention and control system of one kind fortune coal belt fracture
System and method.
Background technology
An important step in coal production is Coal mine transportation system, and what current Coal mine transportation system was mainly taken is fortune
Coal belt-conveying.In being transported in colliery ribbon conveyer typically to carry out at a distance, overlength working time and overweight freight volume
Work, due to adhesive tape unbalance stress during use, the skew of coal breakage position, transport inclination angle is big the problems such as be likely to result in fortune coal belt
Relaxation, skidding, sideslip, broken belt etc..When fortune coal belt breaks suddenly due to the quality problems such as overload, aging and improper operation
When splitting, tight fortune coal belt can glide rapidly because of fracture, or even fly to throw out and hit to staff, and a large amount of coals scattered
Block can be also pounded to personnel and equipment, threatened human life's safety and damaged installations and facilities nearby, cause huge economic loss.Mesh
Before, it has been suggested that the technology come is substantially the warning device of fortune coal belt fracture, and the scope monitored more excessively extensively can not
The accurate specific breakaway poing for judging fortune coal belt, is unfavorable for post-rift emergent management.And most of correlation technique also only has
There is warning function, the safeguard function after coal belt fracture is transported without emergent management.Accordingly, it would be desirable to which a kind of fortune coal belt fracture is urgent
Prevention and control system and method, is effectively treated, it is to avoid made because transporting coal belt fracture for ribbon conveyer fortune coal belt fracture
Into follow-up casualties and equipment damaed cordition.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of fortune coal belt
Urgent prevention and control system is broken, it is novel in design rationally, fortune coal belt is obtained by eddy current displacement sensor and metallic plate sensing
Fracture information, accurate positioning, sensing is accurate, is applicable reliably, promptly presses fortune coal belt using damping driving montant and lead to
Clamping machine clamping fortune coal belt is crossed, protection ribbon conveyer operation safety is easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted by the present invention is：The urgent prevention and control system of coal belt fracture is transported, its
It is characterised by：Including ribbon conveyer remote console and it is multiple with the ribbon conveyer remote console radio communication
Prevention and control protection device, the prevention and control protection device includes being used for the detection agency of detection fortune coal belt fracture and for preventing from transporting coal
The clamping machine of belt fracture, and the control box for controlling the detection agency and the clamping machine to work, the explorer
Metallic plate that structure includes being arranged in ribbon conveyer frame close to auxiliary cylinder, one end are connected on support by damping
Montant, be rotatably installed in the montant other end and with the pulley that is in contact of fortune coal belt and being arranged in montant and matching somebody with somebody with metallic plate
The eddy current displacement sensor of conjunction；
Damping is including daming piston cylinder body and in daming piston cylinder body and drives the damping of montant lifting to live
Seben, and connection daming piston plate and daming piston cylinder body damping spring, be provided with peace on the side wall of daming piston cylinder body
Fill the first tracheae of air air inlet and exhaust valve and the second tracheae of high pressure air inlet and exhaust valve one is installed, daming piston cylinder body passes through described the
Two tracheaes are connected with damping high-pressure cylinder；
The clamping machine include be arranged on fortune coal belt up-downgoing belt between brake piston cylinder body, be movably arranged on
Brake piston plate in brake piston cylinder body, two be respectively and fixedly installed to both sides and and brake piston at the top of brake piston cylinder body
Plate coordinates the fixed plate of clamping fortune coal belt, and fixed plate is located at the upside of the up belt of fortune coal belt, brake piston cylinder body bottom
Portion is connected by connecting tube with high brake pressure cylinder, and high pressure air inlet and exhaust valve two is provided with the connecting tube, and brake piston plate is led to
Elastic lifting part is crossed to lift in brake piston cylinder body；
Control box includes explosion-resistant enclosure, the electronic circuit board being arranged in the explosion-resistant enclosure and is arranged on described explosion-proof
Be integrated with audible-visual annunciator and display screen on shell, the electronic circuit board microcontroller, power supply and with it is micro-
The wireless radio frequency circuit of controller connection and the memory for storing eddy current displacement sensor and metallic plate distance threshold, electricity
Eddy displacement sensor is connected by signal conditioning circuit with microcontroller, and microcontroller controls to rotate by motor drive module
Axle is rotated, rotary shaft, audible-visual annunciator, display screen, air air inlet and exhaust valve and the equal microprocessor control of high pressure air inlet and exhaust valve one；
Signal conditioning circuit is electric by the phase-sensitive detection circuit, high precision operating amplifier circuit, voltage follow being sequentially connected
Road and analog to digital conversion circuit composition；Wireless radio frequency circuit is communicated with the ribbon conveyer remote console.
The above-mentioned urgent prevention and control system of fortune coal belt fracture, it is characterised in that：The explosion-resistant enclosure is fixed by fix bar
On support.
The above-mentioned urgent prevention and control system of fortune coal belt fracture, it is characterised in that：The brake piston cylinder body is arranged on belt
In conveyer frame, width of the length not less than fortune coal belt of the brake piston cylinder body.
The above-mentioned urgent prevention and control system of fortune coal belt fracture, it is characterised in that：The elastic lifting part is hard spring, institute
The quantity for stating hard spring is multiple, and one end of the hard spring is fixed on brake piston cylinder base, the hard spring
The other end be fixed on brake piston plate bottom.
The above-mentioned urgent prevention and control system of fortune coal belt fracture, it is characterised in that：The phase-sensitive detection circuit multiplies including simulation
Musical instruments used in a Buddhist or Taoist mass ADL5391, high precision operating amplifier circuit includes high precision operating amplifier OP07.
Meanwhile, it is simple, reasonable in design, detectable fortune coal belt fracture phenomenon the invention also discloses a kind of method and step
The method for transporting the urgent prevention and control of coal belt fracture, it is characterised in that this method comprises the following steps：
Step 1: setting belt fracture sinking distance threshold：The belt fracture of storage fortune coal belt sinks in memory
Distance threshold D, wherein, belt fracture sinking distance threshold D senses metallic plate by eddy current displacement sensor and obtained；
Step 2: initialization damping：Microprocessor control air air inlet and exhaust valve is opened, while microprocessor control is high
The closing of air bleeding valve one is pressed into, the initialization of damping is realized；
Step 3: detecting eddy current displacement sensor to the real-time range of metallic plate and showing real-time range：By setting
Eddy current displacement sensor in montant is sensed with metallic plate in real time, and the voltage of eddy current displacement sensor sensing passes through
Real-time range H is converted to after signal conditioning circuit, microcontroller shows real-time range H by display screen；
Step 4: judging whether fortune coal belt is broken：Microcontroller is by real-time range H and belt fracture sinking distance threshold
D is compared, as H≤D, is illustrated to transport coal belt fracture, is performed step 5；Otherwise, circulation step three；
Step 5: current prevention and control protection device, which is alarmed and locked, transports coal belt：Detect that H≤D prevention and control are protected in step 4
Protection unit is that the microcontroller in current prevention and control protection device, the current prevention and control protection device is received through signal conditioning circuit
After the data signal of signal condition, audible-visual annunciator emergency alarm is driven, the fracture position of fortune coal belt is pointed out, meanwhile, it is described
Microprocessor control air air inlet and exhaust valve in current prevention and control protection device is closed, control high pressure air inlet and exhaust valve one is opened, and is passed through
Damping high-pressure cylinder is quickly to provide gases at high pressure in daming piston cylinder body, pulley will transport the pressing of coal belt on a metal plate, separately
Outside, the connected high pressure air inlet and exhaust valve two of microprocessor control in the current prevention and control protection device is opened, high brake pressure
Cylinder provides gases at high pressure for brake piston cylinder body, promotes brake piston plate to move up and steps up to transport coal belt with fixed plate；
Step 6: transmitting fault information：Detect that the microcontroller in H≤D prevention and control protection device passes through in step 4
Wireless radio frequency circuit sends failure alarm signal to ribbon conveyer remote console；
Step 7: remaining prevention and control protection device braking ribbon conveyer：Ribbon conveyer remote console except current with preventing
Prevention and control protection device outside control protection device is communicated, and the prevention and control protection device in addition to current prevention and control protection device is remaining anti-
Control the driving high pressure of the microcontroller in protection device, remaining prevention and control protection device air inlet and exhaust valve two to open, high brake pressure cylinder is
Brake piston cylinder body provides gases at high pressure, promotes brake piston plate to move up and steps up to transport coal belt with fixed plate；
Step 8: ribbon conveyer is braked comprehensively：Ribbon conveyer remote console controls the master of the ribbon conveyer
Roller is shut down, and realizes that ribbon conveyer is braked comprehensively.
Above-mentioned method, it is characterised in that：The montant is moved by damping on fortune coal belt.
The present invention has advantages below compared with prior art：
1st, the urgent prevention and control system that uses of the present invention, by set eddy current displacement sensor and metallic plate coordinate detection away from
From, and then the up belt and the spacing of ribbon conveyer frame of fortune coal belt are determined, coal belt is transported using memory storage
Up belt and ribbon conveyer frame distance threshold, so that it is determined that the breaking state of fortune coal belt, using flexible, is applicable
Property is strong；The setting of metallic plate can not only meet the detection of distance, while can also coordinate with montant and lock when transporting coal belt fracture
The fortune coal belt of fracture, using effect is good, is easy to promote the use of.
2nd, the urgent prevention and control system that the present invention is used, by setting the advantage of damping to have two, one is on montant
Contribute to play cushioning effect to the fortune coal belt of ribbon conveyer during lower motion, one is the fortune coal belt fracture in ribbon conveyer
When contribute to pressing fortune coal belt, the very first time protection ribbon conveyer, it is to avoid the fortune coal belt of ribbon conveyer flies to get rid of injury
Staff, reliable and stable, using effect is good.
3rd, the urgent prevention and control system that the present invention is used, by being equipped with a clamping machine for each detection agency, quickly
Protection action is made to fortune coal belt fracture position, by setting brake piston cylinder between the up-downgoing belt of fortune coal belt
Body, the upside that fixed plate is located to the up belt of fortune coal belt is installed, and brake piston plate is located at the up belt of fortune coal belt
Downside, brake piston plate move up can with fixed plate coordinate clamping fortune coal belt up belt, in addition, brake piston plate
Bottom elastic lifting part is installed, extruding of the carrying coal belt to brake piston plate can be stopped, cushioning effect is played, simultaneously
Fortune coal belt is played a supporting role by brake piston plate, fortune coal belt operating path is limited, it is to avoid fortune coal belt crosses carrying
OK, reliable and stable, using effect is good.
4th, the urgent preventing control method that the present invention is used, step is simple, by setting belt fracture sinking distance threshold, works as spy
When the real-time range of the eddy current displacement sensor of survey to metallic plate is less than belt fracture sinking distance threshold, illustrate to transport coal belt
Fracture, brakes ribbon conveyer comprehensively, when transporting coal belt fracture, and damping plays a part of driving montant and accelerates to sink,
Effect is good, is easy to promote the use of.
In summary, the present invention is novel in design rationally, and fortune coal is obtained by eddy current displacement sensor and metallic plate sensing
Belt fracture information, accurate positioning, sensing is accurate, is applicable reliably, fortune coal belt is promptly pressed using damping driving montant
And by clamping machine clamping fortune coal belt, protection ribbon conveyer operation safety is easy to promote the use of.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
The structural representation for the urgent prevention and control system that Fig. 1 uses for the present invention.
The position installation relation schematic diagram of clamping machine and fortune coal belt in the urgent prevention and control system that Fig. 2 uses for the present invention.
Fig. 3 is Fig. 2 top view.
The structural representation of damping in the urgent prevention and control system that Fig. 4 uses for the present invention.
Fig. 5 is enlarged drawing at A in Fig. 1.
Control box and eddy current displacement sensor and the circuit of metallic plate in the urgent prevention and control system that Fig. 6 uses for the present invention
Annexation schematic diagram.
The schematic block circuit diagram of signal conditioning circuit in the urgent prevention and control system that Fig. 7 uses for the present invention.
The FB(flow block) for the urgent preventing control method that Fig. 8 uses for the present invention.
Description of reference numerals:
1-control box；1-1-power supply；1-4-microcontroller；
1-5-audible-visual annunciator；1-6-display screen；1-7-wireless radio frequency circuit；
1-8-motor drive module；1-9-memory；2-support；
3-montant；4-damping；4-1-damping high-pressure cylinder；
4-2-high pressure air inlet and exhaust valve one；4-3-air air inlet and exhaust valve；4-4-damping spring；
4-5-daming piston plate；4-6-daming piston cylinder body；5-fix bar；
6-pulley；7-fortune coal belt；8-auxiliary cylinder；
9-eddy current displacement sensor；10-metallic plate；12-1-fixed plate；
12-2-brake piston plate；12-3-elastic lifting part；12-4-high brake pressure cylinder；
12-5-brake piston cylinder body；12-6-high pressure air inlet and exhaust valve two；
14-ribbon conveyer frame；20-signal conditioning circuit；
20-1-phase-sensitive detection circuit；20-2-high precision operating amplifier circuit；
20-3-voltage follower circuit；20-4-analog to digital conversion circuit.
Embodiment
As shown in Figures 1 to 7, the fortune urgent prevention and control system of coal belt fracture of the present invention, including ribbon conveyer are remote
Process control platform and multiple prevention and control protection devices with the ribbon conveyer remote console radio communication, the prevention and control protection
Device includes being used for the detection agency of the fracture of detection fortune coal belt 7 and the clamping machine for preventing from transporting the fracture of coal belt 7, Yi Jiyong
In the control box 1 for controlling the detection agency and clamping machine work, the detection agency includes setting close to auxiliary cylinder 8
Metallic plate 10, one end in ribbon conveyer frame 14 are connected to montant 3 on support 2, rotational installation by damping 4
In the other end of montant 3 and the pulley 6 being in contact with fortune coal belt 7 and the electric whirlpool for being arranged in montant 3 and coordinating with metallic plate 10
Flow displacement transducer 9；
It should be noted that the setting of multiple prevention and control protection devices is to transport coal skin to ensure to transport edge after coal belt 7 is broken
Set multiple protection points to carry out pressing protection to fortune coal belt 7 simultaneously on the traffic direction of band 7, play the work of fast and stable braking
With, it is to avoid ribbon conveyer braking is not worked caused by single prevention and control protection device effect difference or malfunction；Each prevention and control are protected
An auxiliary cylinder 8 is corresponded in protection unit, fortune coal is detected in real time by installing a detection agency for each auxiliary cylinder 8
Belt 7 is broken, and is driven eddy current displacement sensor 9 to move up and down by the up and down motion of montant 3, is coordinated with metallic plate 10 and detect
Distance, and then the up belt and the spacing of ribbon conveyer frame 14 of fortune coal belt 7 are determined, the upper of fortune coal belt 7 is set
Row belt and the distance threshold of ribbon conveyer frame 14, so that it is determined that the breaking state of fortune coal belt 7, using flexible, is applicable
Property is strong；The setting of metallic plate 14 is for the moment in order to be able to meet distance of reaction, but in order to when transporting coal belt 7 and being broken, match somebody with somebody with montant 3
The fortune coal belt 7 of locking fracture is closed, using effect is good, position fast accurate；By being equipped with a folder for each auxiliary cylinder 8
Machine is held, when there is fortune coal belt 7 to occur phenomenon of rupture, passes through clamping machine clamping fortune coal belt 7, it is to avoid fortune coal belt 7 is quickly de-
Fall, it is to avoid coal, which splashes, to be damaged equipment and injure other people；Simultaneously montant is respectively mounted on the side of each auxiliary cylinder 8
3, on the one hand the installation of montant 3 provides mobile installation foundation for eddy current displacement sensor 9, on the other hand matches somebody with somebody with damping 4
Pressing fortune coal belt 7 is closed, the braking of ribbon conveyer is aided in.
Damping 4 is including daming piston cylinder body 4-6 and in daming piston cylinder body 4-6 and drives montant 3 to lift
Daming piston plate 4-5, and connection daming piston plate 4-5 and daming piston cylinder body 4-6 damping spring 4-4, daming piston
The first tracheae for installing air air inlet and exhaust valve 4-3 is provided with cylinder body 4-6 side wall and the of the 4-2 of high pressure air inlet and exhaust valve one is installed
Two tracheaes, daming piston cylinder body 4-6 is connected by second tracheae with damping high-pressure cylinder 4-1；
It should be noted that the purpose for setting damping 4 has two, one is to contribute to when montant 4 moves up and down pair
Coal 7 cushioning effects of belt are transported, one is to contribute to pressing fortune coal belt 7 when transporting the fracture of coal belt 7, very first time protection belt
Conveyer, it is to avoid fortune coal belt 7 flies to get rid of injury staff, when transporting coal 7 normal work of belt, montant 3 is moved up and down, montant
3 lower end is provided with pulley 6, and pulley 6 is in contact with fortune coal belt 7, and pulley 6 keeps rolling, to reduce fortune coal belt 7 and montant
3 frictional force, also reduces the degree of wear of fortune coal belt 7, and air air inlet and exhaust valve 4-3 setting is ensured when fortune coal belt 7
During normal work, air is freed in and out in daming piston cylinder body 4-6, the buffering moved up and down to montant 3 is realized；When fortune coal belt
During 7 fracture, montant 3 is sunk due to deadweight, and eddy current displacement sensor 9 is moved down, microcontroller 1-4 driving high pressure intake and exhaust
Valve 4-2, damping high-pressure cylinder 4-1 gases at high pressure are poured in daming piston cylinder body 4-6, and daming piston plate 4-5 is pushed up downwards, are drawn
Stretch damping spring 4-4 so that montant 3 is moved down, offseted with metallic plate 10, fortune coal belt 7 can be locked.
The clamping machine includes brake piston cylinder body 12-5, the activity being arranged between the up-downgoing belt of fortune coal belt 7
Brake piston plate 12-2 in brake piston cylinder body 12-5, two be respectively and fixedly installed to brake piston cylinder body 12-5 tops
Portion both sides and the fixed plate 12-1 for coordinating clamping fortune coal belt 7 with brake piston plate 12-2, fixed plate 12-1 are located at fortune coal belt 7
Up belt upside, brake piston cylinder body 12-5 bottoms are connected by connecting tube with high brake pressure cylinder 12-4, the company
The 12-6 of high pressure air inlet and exhaust valve two is provided with adapter, brake piston plate 12-2 is by elastic lifting part 12-3 in brake piston cylinder body
Lifted in 12-5；
In the present embodiment, the elastic lifting part 12-3 is hard spring, the quantity of the hard spring be it is multiple, it is described
One end of hard spring is fixed on brake piston cylinder body 12-5 bottoms, and the other end of the hard spring is fixed on brake piston plate
12-2 bottoms.
In the present embodiment, the brake piston cylinder body 12-5 is arranged in ribbon conveyer frame 14, the brake piston
Width of the cylinder body 12-5 length not less than fortune coal belt 7.
It should be noted that in actual use, brake piston cylinder body 12-5 is cube structure, the brake piston cylinder body
12-5 length is that the up belt for ensureing fortune coal belt 7 can be completely placed in system not less than the purpose of the width of fortune coal belt 7
Piston cylinder body 12-5 crown centers position, brake piston plate 12-2 is movably arranged in brake piston cylinder body 12-5, and braking
Piston plate 12-2 length is more than the width of fortune coal belt 7, and brake piston plate 12-2 installed in brake piston cylinder body 12-5 with pushing up
Portion both sides fixed plate 12-1 coordinates clamping fortune coal belt 7, and brake piston plate 12-2 is by elastic lifting part 12-3 in brake piston
The purpose of lifting has two in cylinder body 12-5, and one is when brake piston plate 12-2 is moved upwards, in order to prevent impulsive force excessive
Collision is caused to fixed plate 12-1, elastic lifting part 12-3 produces pulling force to brake piston plate 12-2, with brake piston plate 12-
2 move upwards it is higher, elastic lifting part 12-3 pulling force is bigger, high brake pressure cylinder 12-4 enter brake piston cylinder body 12-5
Gases at high pressure it is more, the support force for giving brake piston plate 12-2 stable offsets elastic lifting part 12-3 pulling force；Two be when system
When piston plate 12-2 is moved downward, brake piston plate 12-2 self gravitations, elastic lifting part 12-3 pulling force and rapid decompression
Gas brake piston plate 12-2 is declined rapidly, in order to prevent brake piston plate 12-2 and brake piston cylinder body 12-5 bottom plates
Collision, declines, elastic lifting part 12-3 produces upward elastic force, to brake piston plate with brake piston plate 12-2 height
One buffering of 12-2 formation, in order to ensure brake piston plate 12-2 stationarity, elastic lifting part 12-3 uses hard spring, stretched
Contracting effect is good, and the quantity that hard spring is set is multiple, and multiple hard springs are connected with brake piston plate 12-2 jointly, and enhancing is steady
It is qualitative.
Control box 1 includes explosion-resistant enclosure, the electronic circuit board being arranged in the explosion-resistant enclosure and is arranged on described anti-
Microcontroller 1-4, power supply are integrated with audible-visual annunciator 1-5 and display screen 1-6 on quick-fried shell, the electronic circuit board
1-1 and the wireless radio frequency circuit 1-7 being connected with microcontroller 1-4 and for storing eddy current displacement sensor 9 and metal
The memory 1-9 of the distance threshold of plate 10, eddy current displacement sensor 9 is connected by signal conditioning circuit 20 with microcontroller 1-4,
Microcontroller 1-4 controls rotary shaft 13-4 to rotate by motor drive module 1-8, rotary shaft 13-4, audible-visual annunciator 1-5, aobvious
Display screen 1-6, air air inlet and exhaust valve 4-3 and the equal microcontroller 1-4 controls of the 4-2 of high pressure air inlet and exhaust valve one；
In the present embodiment, the explosion-resistant enclosure is fixed on support 2 by fix bar 5.
It should be noted that subsurface environment is complicated severe, the problem of anti-explosion safety is the primary solution of underground equipment is explosion-proof
The setting of shell is that the use in order to ensure electrical equipment in control box 1 is safe, it is to avoid the point spark of electrical equipment in control box 1
Underground coal mine is threatened, audible-visual annunciator 1-5 setting is to occur timely send out after fortune coal belt 7 is broken
Go out alarm signal, the very first time informs that fortune coal belt 7 is broken and transported the fracture position of coal belt 7, and signal conditioning circuit 20 is real-time
Signal is transmitted to microcontroller 1-4, each microcontroller 1-4 is in monitoring state in real time.
It should be noted that eddy current displacement sensor 9 is a kind of electronic device of output voltage signal, when current vortex position
When the distance of displacement sensor 9 and metallic plate 10 is close, the surface of metallic plate 10 receives the higher-order of oscillation in eddy current displacement sensor 9
Energy, makes the decay of oscillator output amplitude linearly in eddy current displacement sensor 9, using non-contacting mode detect away from
From eddy current displacement sensor 9 is not influenceed when working by underground dust, and service life is long, is highly suitable for underground coal mine severe
Used in environment.
Signal conditioning circuit 20 by the phase-sensitive detection circuit 20-1 being sequentially connected, high precision operating amplifier circuit 20-2,
Voltage follower circuit 20-3 and analog to digital conversion circuit 20-4 compositions；Wireless radio frequency circuit 1-7 is remotely controlled with the ribbon conveyer
Platform processed is communicated.
It should be noted that phase-sensitive detection circuit 20-1 setting is to remove the signal of eddy current displacement sensor 9
High-frequency noise, extracts useful signal, plays the effect of LPF；High precision operating amplifier circuit 20-2 setting be in order to
Effective amplification is carried out to the small-signal that phase-sensitive detection circuit 20-1 is obtained, is easy to post-processing；Voltage follower circuit 20-3
Setting be that there is provided a reliable and stable magnitude of voltage for the stable voltage signal kept after amplification.
In the present embodiment, the phase-sensitive detection circuit 20-1 includes analog multiplier ADL5391, high precision operating amplifier
Circuit 20-2 includes high precision operating amplifier OP07.
It should be noted that analog multiplier ADL5391 can work in temperature range is -40 DEG C to+85 DEG C of environment,
Meet work requirements under real well.
A kind of fortune urgent preventing control method of coal belt fracture as shown in Figure 8, comprises the following steps：
Step 1: setting belt fracture sinking distance threshold：The belt fracture of storage fortune coal belt 7 in memory 1-9
Sinking distance threshold D, wherein, belt fracture sinking distance threshold D senses metallic plate 10 by eddy current displacement sensor 9 and obtained
；
Step 2: initialization damping：Microcontroller 1-4 control air air inlet and exhaust valves 4-3 is opened, while microcontroller
The 4-2 of 1-4 control high pressures air inlet and exhaust valve one is closed, and realizes the initialization of damping 4；
It should be noted that the purpose of initialization damping is to ensure air intake and exhaust when fortune coal belt 7 is normally run
Valve 4-3 naturally conveys air for daming piston cylinder body 4-6, is that moving up and down for montant 3 plays a part of buffering, closes high pressure
The 4-2 of air inlet and exhaust valve one, cost-effective, safe and reliable, when occurring 7 fracture of belt of fortune coal, the 4-2 of high pressure air inlet and exhaust valve one is
Start, control is simple.
Step 3: detecting eddy current displacement sensor to the real-time range of metallic plate and showing real-time range：By setting
Eddy current displacement sensor 9 in montant 3 is sensed with metallic plate 10 in real time, the electricity that eddy current displacement sensor 9 senses
Pressure is converted to real-time range H after signal conditioning circuit 20, and microcontroller 1-4 shows real-time range H by display screen 1-6；
Step 4: judging whether fortune coal belt is broken：Microcontroller 1-4 is by real-time range H and belt fracture sinking distance
Threshold value D is compared, as H≤D, is illustrated that fortune coal belt 7 is broken, is performed step 5；Otherwise, circulation step three；
In the present embodiment, the montant 3 is moved by damping 4 on fortune coal belt 7.
Step 5: current prevention and control protection device, which is alarmed and locked, transports coal belt：Detect that H≤D prevention and control are protected in step 4
Protection unit is that the microcontroller 1-4 in current prevention and control protection device, the current prevention and control protection device is received through signal condition
After the data signal of the signal condition of circuit 20, audible-visual annunciator 1-5 emergency alarms are driven, the fracture position of fortune coal belt 7 is pointed out,
Meanwhile, the microcontroller 1-4 control air air inlet and exhaust valves 4-3 in the current prevention and control protection device is closed, control height is pressed into row
The 4-2 of air valve one is opened, and by damping high-pressure cylinder 4-1 quickly to provide gases at high pressure in daming piston cylinder body 4-6, pulley 6 will
Fortune coal belt 7 is pressed against on metallic plate 20, in addition, the microcontroller 1-4 controls in the current prevention and control protection device connect with it
The 12-6 of high pressure air inlet and exhaust valve two connect is opened, and high brake pressure cylinder 12-4 provides gases at high pressure for brake piston cylinder body 12-5, pushed away
Dynamic brake piston plate 12-2 is moved up steps up fortune coal belt 7 with fixed plate 12-1；
It should be noted that because microcontroller 1-4 once receives the numeral through the signal condition of signal conditioning circuit 20
During signal, illustrate that position has been broken fortune coal belt 7 herein, microcontroller 1-4 quickly controls brake piston plate 12-2 and fixation
Plate 12-1 coordinates, and realizes that current prevention and control protection device accommodates conveyer belt, brake piston plate 12-2 and fixed plate 12-1 is limited
The deformation of fortune coal belt 7 comes off path, extends the time for fortune the coming off of coal belt 7, therefore, controls current prevention and control protection device
Accommodate fortune coal belt 7 effectively, directly control damping 4 to drive montant 3 by microcontroller 1-4 in current prevention and control protection device
The part of pressing fortune coal belt 7, you can the end of the fracture of pressing fortune coal belt 7, speed is fast, and live effect is good.
Step 6: transmitting fault information：Detect that the microcontroller 1-4 in H≤D prevention and control protection device leads in step 4
Cross wireless radio frequency circuit 1-7 and send failure alarm signal to ribbon conveyer remote console；
Step 7: remaining prevention and control protection device braking ribbon conveyer：Ribbon conveyer remote console except current with preventing
Prevention and control protection device outside control protection device is communicated, and the prevention and control protection device in addition to current prevention and control protection device is remaining anti-
The 12-6 of microcontroller 1-4 driving high pressures air inlet and exhaust valve two controlled in protection device, remaining prevention and control protection device is opened, high brake pressure
Cylinder 12-4 provides gases at high pressure for brake piston cylinder body 12-5, promotes brake piston plate 12-2 to move up and steps up with fixed plate 12-1
Transport coal belt 7；
It should be noted that remaining prevention and control protection device only needs the work of control injury protection mechanism, meanwhile, remaining prevention and control are protected
Montant 3 is without sinking pressing fortune coal belt 7 in protection unit, it is to avoid clamps the formation of fortune coal belt 7 with injury protection mechanism and conflicts,
Because injury protection mechanism clamps the fortune coal belt 7 between the fortune coal belt 7 between two neighboring roller, two neighboring roller
Holding level that point can be approximate, it is to avoid the coal loaded on fortune coal belt 7 is toppled over, and montant 3 is pressed against metal by coal belt 7 is transported
When on plate 10, the part inclination of fortune coal belt 7 is excessive, easily causes coal and drops, and therefore, leads to only in current prevention and control protection device
Cross the driving montant 3 of damping 4 to act, the remaining 4-2 of prevention and control protection device mesohigh air inlet and exhaust valve one does not work, and control is simple,
Effect is good.
Step 8: ribbon conveyer is braked comprehensively：Ribbon conveyer remote console controls the master of the ribbon conveyer
Roller is shut down, and realizes that ribbon conveyer is braked comprehensively.
The present invention is in use, the master rotor of ribbon conveyer remote console control ribbon conveyer is shut down, due to fortune coal
The transportation range of belt 7 is remote, and master rotor shuts down delay length, it is impossible to fast and effectively realize that ribbon conveyer is braked, therefore, using many
Individual prevention and control protection device is used cooperatively, and realizes that ribbon conveyer is braked comprehensively.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (7)
1. transport the urgent prevention and control system of coal belt fracture, it is characterised in that：Including ribbon conveyer remote console and it is multiple with
The prevention and control protection device of the ribbon conveyer remote console radio communication, the prevention and control protection device includes being used to detect fortune
The detection agency of coal belt (7) fracture and the clamping machine for preventing from transporting coal belt (7) fracture, and for controlling the detection
Mechanism and the control box (1) of clamping machine work, the detection agency include being arranged on belt conveying close to auxiliary cylinder (8)
Metallic plate (10), one end in machine frame (14) are connected to montant (3) on support (2), rotational installation by damping (4)
Montant (3) other end and with fortune coal belt (7) pulley (6) that is in contact and be arranged on montant (3) it is interior and with metallic plate (10)
The eddy current displacement sensor (9) of cooperation；
Damping (4) includes daming piston cylinder body (4-6) and in the daming piston cylinder body (4-6) and drives montant (3)
The daming piston plate (4-5) of lifting, and connect the damping spring (4- of daming piston plate (4-5) and daming piston cylinder body (4-6)
4) the first tracheae for installing air air inlet and exhaust valve (4-3), is provided with the side wall of daming piston cylinder body (4-6) and height is installed and is pressed into
Second tracheae of air bleeding valve one (4-2), daming piston cylinder body (4-6) passes through second tracheae and damping high-pressure cylinder (4-1)
Connection；
The clamping machine includes brake piston cylinder body (12-5), the activity being arranged between the up-downgoing belt of fortune coal belt (7)
Brake piston plate (12-2) in brake piston cylinder body (12-5), two be respectively and fixedly installed to brake piston cylinder body
(12-5) top both sides and the fixed plate (12-1) for coordinating clamping fortune coal belt (7) with brake piston plate (12-2), fixed plate
(12-1) is located at the upside of the up belt of fortune coal belt (7), and brake piston cylinder body (12-5) bottom passes through connecting tube and braking
High-pressure cylinder (12-4) is connected, and high pressure air inlet and exhaust valve two (12-6) is provided with the connecting tube, and brake piston plate (12-2) is led to
Elastic lifting part (12-3) is crossed to lift in brake piston cylinder body (12-5)；
Control box (1) includes explosion-resistant enclosure, the electronic circuit board being arranged in the explosion-resistant enclosure and is arranged on described explosion-proof
Microcontroller (1-4), power supply are integrated with audible-visual annunciator (1-5) and display screen (1-6) on shell, the electronic circuit board
Power supply (1-1) and the wireless radio frequency circuit (1-7) being connected with microcontroller (1-4) and for store current vortex displacement sensing
The memory (1-9) of device (9) and metallic plate (10) distance threshold, eddy current displacement sensor (9) passes through signal conditioning circuit
(20) connect with microcontroller (1-4), microcontroller (1-4) controls rotary shaft (13-4) to turn by motor drive module (1-8)
It is dynamic, rotary shaft (13-4), audible-visual annunciator (1-5), display screen (1-6), air air inlet and exhaust valve (4-3) and high pressure air inlet and exhaust valve one
(4-2) microcontroller (1-4) control；
Signal conditioning circuit (20) is by the phase-sensitive detection circuit (20-1), the high precision operating amplifier circuit (20- that are sequentially connected
2), voltage follower circuit (20-3) and analog to digital conversion circuit (20-4) composition；Wireless radio frequency circuit (1-7) and the belt conveying
Machine remote console is communicated.
2. according to the urgent prevention and control system of fortune coal belt fracture described in claim 1, it is characterised in that：The explosion-resistant enclosure passes through
Fix bar (5) is fixed on support (2).
3. according to the urgent prevention and control system of fortune coal belt fracture described in claim 1, it is characterised in that：The brake piston cylinder body
(12-5) is arranged in ribbon conveyer frame (14), and the length of the brake piston cylinder body (12-5) is not less than fortune coal belt
(7) width.
4. according to the urgent prevention and control system of fortune coal belt fracture described in claim 1, it is characterised in that：The elastic lifting part
(12-3) is hard spring, and the quantity of the hard spring is multiple, and one end of the hard spring is fixed on brake piston cylinder
Body (12-5) bottom, the other end of the hard spring is fixed on brake piston plate (12-2) bottom.
5. according to the urgent prevention and control system of fortune coal belt fracture described in claim 1, it is characterised in that：The phase-sensitive detection circuit
(20-1) includes analog multiplier ADL5391, and high precision operating amplifier circuit (20-2) includes high precision operating amplifier
OP07。
6. a kind of method for carrying out transporting the urgent prevention and control of coal belt fracture using system as claimed in claim 1, it is characterised in that：Should
Method comprises the following steps：
Step 1: setting belt fracture sinking distance threshold：The belt fracture of storage fortune coal belt (7) in memory (1-9)
Sinking distance threshold D, wherein, belt fracture sinking distance threshold D senses metallic plate (10) by eddy current displacement sensor (9)
Obtain；
Step 2: initialization damping：Microcontroller (1-4) control air air inlet and exhaust valve (4-3) is opened, while microcontroller
(1-4) control high pressure air inlet and exhaust valve one (4-2) is closed, and realizes the initialization of damping (4)；
Step 3: detecting eddy current displacement sensor to the real-time range of metallic plate and showing real-time range：It is perpendicular by being arranged on
Eddy current displacement sensor (9) in bar (3) is sensed with metallic plate (10) in real time, eddy current displacement sensor (9) sensing
Voltage be converted to real-time range H after signal conditioning circuit (20), microcontroller (1-4) passes through display screen (1-6) and shown
Real-time range H；
Step 4: judging whether fortune coal belt is broken：Microcontroller (1-4) sinks real-time range H and belt fracture apart from threshold
Value D is compared, as H≤D, is illustrated fortune coal belt (7) fracture, is performed step 5；Otherwise, circulation step three；
Step 5: current prevention and control protection device, which is alarmed and locked, transports coal belt：H≤D prevention and control protection dress is detected in step 4
The microcontroller (1-4) being set in current prevention and control protection device, the current prevention and control protection device is received through signal condition electricity
After the data signal of road (20) signal condition, audible-visual annunciator (1-5) emergency alarm is driven, the fracture of fortune coal belt (7) is pointed out
Position, meanwhile, microcontroller (1-4) the control air air inlet and exhaust valve (4-3) in the current prevention and control protection device is closed, control
High pressure air inlet and exhaust valve one (4-2) is opened, quickly high for offer in daming piston cylinder body (4-6) by damping high-pressure cylinder (4-1)
Calm the anger body, pulley (6) will transport coal belt (7) and be pressed against on metallic plate (20), in addition, micro- in the current prevention and control protection device
Controller (1-4) controls connected high pressure air inlet and exhaust valve two (12-6) to open, and high brake pressure cylinder (12-4) is lived for braking
Plug cylinder body (12-5) provides gases at high pressure, promotes brake piston plate (12-2) to move up and steps up to transport coal belt with fixed plate (12-1)
(7)；
Step 6: transmitting fault information：Detect that the microcontroller (1-4) in H≤D prevention and control protection device passes through in step 4
Wireless radio frequency circuit (1-7) sends failure alarm signal to ribbon conveyer remote console；
Step 7: remaining prevention and control protection device braking ribbon conveyer：Ribbon conveyer remote console is protected with removing current prevention and control
Prevention and control protection device outside protection unit is communicated, and the prevention and control protection device in addition to current prevention and control protection device is that remaining prevention and control are protected
Microcontroller (1-4) driving high pressure air inlet and exhaust valve two (12-6) in protection unit, remaining prevention and control protection device is opened, high brake pressure
Cylinder (12-4) is that brake piston cylinder body (12-5) provides gases at high pressure, promotes brake piston plate (12-2) to move up and fixed plate
(12-1) steps up fortune coal belt (7)；
Step 8: ribbon conveyer is braked comprehensively：Ribbon conveyer remote console controls the master rotor of the ribbon conveyer
Shut down, realize that ribbon conveyer is braked comprehensively.
7. in accordance with the method for claim 6, it is characterised in that：The montant (3) is by damping (4) in fortune coal belt
(7) moved on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643939.3A CN107244538B (en) | 2017-07-31 | 2017-07-31 | Emergency prevention and control system and method for coal conveying belt fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643939.3A CN107244538B (en) | 2017-07-31 | 2017-07-31 | Emergency prevention and control system and method for coal conveying belt fracture |
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| CN107244538B CN107244538B (en) | 2020-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536408A (en) * | 2022-03-25 | 2022-05-27 | 临海市新睿电子科技有限公司 | Belt fracture protection system of robot |
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| CN102320457A (en) * | 2011-08-23 | 2012-01-18 | 北京纵横兴业科技发展有限公司 | Intelligent monitoring system for monitoring coal conveying belt for of coal conveying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536408A (en) * | 2022-03-25 | 2022-05-27 | 临海市新睿电子科技有限公司 | Belt fracture protection system of robot |
| CN114536408B (en) * | 2022-03-25 | 2023-12-08 | 临海市新睿电子科技有限公司 | Belt breakage protection system of robot |
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| CN107244538B (en) | 2020-08-04 |
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