CN204807246U - Pressure data monitoring device based on a crawler unwheeling - Google Patents
Pressure data monitoring device based on a crawler unwheeling Download PDFInfo
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- CN204807246U CN204807246U CN201520555753.9U CN201520555753U CN204807246U CN 204807246 U CN204807246 U CN 204807246U CN 201520555753 U CN201520555753 U CN 201520555753U CN 204807246 U CN204807246 U CN 204807246U
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Abstract
The utility model discloses a pressure data monitoring device based on a crawler unwheeling, include: pressure sensor, central processing module, display device and early warning device, pressure sensor sets up on the pillar, connects central processing module for gather a column pressure data, and central processing module is given in the transmission, central processing module connects display device and early warning device, is used for handling the data that pressure sensor gathered to produce and show signal and early -warning singal, display device for according to showing a signal display column pressure value, early warning device for realize early -warning reminder according to the early -warning singal. The utility model provides a pressure data monitoring device has reduced the part replacement cost, has avoided the electrified adjustment threshold value of uncapping under the mine, and has set up early warning system, has guaranteed the safe operation of coal mining operation.
Description
Technical field
The utility model relates to the technical field of mine roof monitoring, particularly relates to a kind of pressure data supervising device based on crawler travel stent car.
Background technology
The use of crawler travel stent car, in perfect coal mining activity, the production practice of shortwall face and equipment, improve coal recovery rate, achieve safe and efficient, achieve good economic benefit.
Crawler travel stent car comprises vehicle frame, running gear and suspension three parts.Vehicle frame is overall skeleton, is used for installing all integrated architectures and parts; Running gear is used for supporting body, realizes the walking function of body; Suspension is the coupling arrangement of mutual power transmission between vehicle frame and running gear.For realizing supporting to top board, the requisite part of vehicle frame is exactly retaining-plate, and retaining-plate is propped up by four pillars, directly and top plate contact, can adjust the height of retaining-plate according to the difference of top board.Being used for the tensimeter of test four strut pressure is arranged on the centre position, front end of stent car, is fixed on the downside of retaining-plate by the card of dial plate frame and device.Tensimeter is the standard that operating personnel judges stent car supporting roof safety, and be equivalent to " eyes " of operating personnel, its importance is self-evident.But stent car is in operation and use procedure, there is the phenomenon of dump squeeze pressure dial plate, extrude for a long time, easily cause dial plate to be out of shape, damage.In addition, pressure dial plate is the import accessory of stent car, buys, calibration cycle is long, expensive, brings inconvenience to use producer.
Summary of the invention
The utility model provides a kind of pressure data supervising device based on crawler travel stent car, to monitor roof weighting situation, ensures the safe operation of coal mining activity.
The utility model embodiment provides a kind of pressure data supervising device based on crawler travel stent car, comprising: pressure transducer, central processing module, display device and prior-warning device; Described pressure transducer is arranged on pillar, connecting central processing module, for gathering strut pressure data, and being transferred to central processing module; Described central processing module connects display device and prior-warning device, for the treatment of the data that described pressure transducer collects, and produces display and early warning signal; Described display device, for showing strut pressure value according to display; Described prior-warning device, for realizing early warning according to early warning signal.
The utility model is by a kind of pressure data supervising device based on crawler travel stent car of design, solve tensimeter excessive height in prior art, easily by dump extrusion damage, and as import part, the problem that during replacing, timeliness is low, price is high, ensure that the safe operation of coal mining activity.
Accompanying drawing explanation
Fig. 1 is the frame diagram of the pressure data supervising device in the utility model embodiment one;
Fig. 2 is the structural representation of monochromatic burner and tri coloured lantern in the utility model embodiment two;
Fig. 3 a is the front view of the pressure data supervising device in the utility model embodiment three;
Fig. 3 b is the right view of the pressure data supervising device in the utility model embodiment three;
Fig. 3 c is the vertical view of the pressure data supervising device in the utility model embodiment three;
Fig. 4 is the electrical schematic diagram of the pressure data supervising device in the utility model embodiment three.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.Be understandable that, specific embodiment described herein only for explaining the utility model, but not to restriction of the present utility model.It also should be noted that, for convenience of description, illustrate only the part relevant to the utility model in accompanying drawing but not entire infrastructure.
Embodiment one
Fig. 1 is the frame diagram of the pressure data supervising device in the utility model embodiment one.As shown in Figure 1, pressure data supervising device comprises pressure transducer 101, central processing module 102, display device 103 and prior-warning device 104; Described pressure transducer 101 is arranged on pillar, connecting central processing module 102, for gathering strut pressure data, and being transferred to central processing module 102; Described central processing module 102 connects display device 103 and prior-warning device 104, for the treatment of the data that described pressure transducer 101 collects, and produces display and early warning signal; Described display device 103, for showing strut pressure value according to display; Described prior-warning device 104, for realizing early warning according to early warning signal.
Pressure data supervising device in the utility model embodiment one is applicable to the crawler travel stent car used in coal mining activity, situation is pressed for what detect top board, force value stent car being used for four pillars supporting retaining-plate shows, and carries out early warning accordingly.The retaining-plate of roof supporting is propped up by four pillars, and the pressure on every root pillar all can change with the situation of retaining-plate roof supporting, and therefore four pressure transducers are arranged on four pillars by the utility model, tests the pressure valve of four pillars respectively.Force value is converted into voltage signal and is transferred to central processing module by pressure transducer, central processing module processes described magnitude of voltage, produce display and early warning signal, and respectively by these two Signal transmissions to display device and prior-warning device, drive display device to show the force value of four pillars, prior-warning device carries out safe early warning.
Further, pressure data supervising device also comprises telepilot, for setting advanced warning grade value, zero point of measurement value sensor and gain.
Before pressure monitoring device dispatches from the factory, need to carry out calibration to it; In use, alarm parameters may be adjusted.And the zeroing of pressure monitoring device operation, and the enlargement factor of magnitude of voltage that pressure transducer is changed out by force value, i.e. gain, all needs artificial setting.In conventional pressure supervising device, the setting of these values needs the casing cover of pressure monitoring device to open, and set therein, and this charged mode of uncapping can bring danger to production in coal mining activity.The utility model adopts the mode of infrared remote-control operation to carry out calibration and adjusting thresholds for this problem, in pressure monitoring device inside, infrared remote receiver is set, outer setting telepilot, infrared control signal is sent by telepilot, receiver Received signal strength by micro-control unit (Micro-controllerUnit, MCU) processor processes signal, the value that the control information adjustment of carrying according to signal is corresponding.
Further, pressure data supervising device also comprises rubber seal type intrinsic safety electric source, for supply voltage is converted to 12V, for device is powered.
Power supply in the control box of stent car rear portion is the AC power of 115V, after rubber seal type intrinsic safety electric source, becomes the 12V DC voltage needed for pressure data supervising device, powers to pressure monitoring device.And consider the damage of power interface and connecting line in later stage application to adjusting as required, pressure data supervising device is provided with reserved power interface.
In addition, pressure monitoring device internal circuit takes anti-lightning strike measure.
Pressure data supervising device in the utility model embodiment, integrate strut pressure collection, display, early warning, achieve the production domesticization of import equipment parts, effectively reduce part replacement cost, improve timeliness, in addition, this device is also provided with Infrared remote controller, avoid charged adjustment threshold value of uncapping under mine, and device internal circuit is essential safe type, ensure that the safe operation of coal mining activity.
Embodiment two
The present embodiment two is optimized based on embodiment one, in the present embodiment, the display device in embodiment one is preferably light emitting diode (lightemittingdiode, LED) display screen.
Because LED operating voltage is low, can active illuminating and have certain brightness, brightness can use again voltage (or electric current) to regulate, itself is shock-resistant, anti-vibration and the life-span long, so LED display is a kind of display of conventional function admirable, the utility model is namely preferred adopts this display as force value display screen.
LED screen need show the force value of 4 pillars, preferably, the unit of display force value is MPa, in display interface, " front left: ", " front right: ", " rear left: ", " rear right: " four printed words are set respectively, the arrangement mode that four printed words use two row two to arrange in display interface, " front left: ", " front right: " are from left to right arranged in order, as the first row, " rear left: ", " rear right: " are from left to right arranged in order, as the second row, wherein, the position of four pillars is opposite brackets cars.During display, actual four the strut pressure values recorded are put into the display below of corresponding printed words in above-mentioned four printed words, simultaneously the force value of four printed words and correspondence shows on screen.Such as: the strut pressure value recorded on the left of stent car front end is 5MPa, position corresponding with front left in that display interface can show " front left: 5MPa ".
Further, prior-warning device is monochromatic burner and tri coloured lantern.
Fig. 2 is the structural representation of monochromatic burner and tri coloured lantern in the utility model embodiment two.As shown in Figure 2, monochromatic burner 210 is red colored lamp 221, and tri coloured lantern 220 is made up of red colored lamp 221, amber light 222 and green light 223.Early warning display will make operating personnel understand current safe class fast, and makes prompting when safe class changes, for realizing above-mentioned target, the utility model preferably by monochromatic burner and tri coloured lantern with the use of carrying out early warning.
Further, central processing module comprises amplifying circuit, filtering circuit, sample circuit, MCU processor, LED drive circuit and infrared receiving circuit, wherein: amplifying circuit, filtering circuit are connected with sample circuit order, strut pressure data for being gathered by described pressure transducer carry out amplifying, filtering and sampling processing, and are provided to MCU processor; MCU processor connects LED drive circuit, prior-warning device and infrared receiving circuit, for generation of display and early warning signal, is supplied to described LED drive circuit and prior-warning device respectively, and processes the infrared signal of telepilot transmission.
Further, described MCU processor comprising extraction module, dividing module, generation module and control module, wherein: described extraction module is for extracting the maximal value in four strut pressure values; Described division module is used for dividing four advanced warning grades according to the interval endpoint value of setting; Described generation module for judging the advanced warning grade of described maximal value, and generates early warning signal accordingly; Described control module shows the force value of four pillars for controlling display device, control prior-warning device and send early warning, and control assembly completes respective operations according to infrared signal.
Pressure data supervising device in the utility model embodiment, devise level Four early warning, there is pressure range instruction and overpressure alarm function, and carry out follow-up fine processing by the pressure signal collected pressure transducer, make this device have high specific of precision.
Embodiment three
The present embodiment is the preferred embodiment of embodiment two.
Fig. 3 a is the front view of the pressure data supervising device in the utility model embodiment three.As shown in Figure 3 a, pressure data supervising device comprises monochromatic burner 301, tri coloured lantern 302, infrared receiver hole 303, LED display 304, chute 305, pressure sensor interface 306, power interface 307 and reserved power interface 308.Central processing module is arranged on the inside of pressure monitoring device shell.Fig. 3 b is the right view of the pressure data supervising device in the utility model embodiment three.Fig. 3 c is the vertical view of the pressure data supervising device in the utility model embodiment three.
Chute 305 is arranged on the top of pressure data supervising device, and as shown in Figure 3 c, chute 305 is provided with oval groove, can with the projection card of correspondingly-shaped on the downside of the back up pad of stent car and, realize fixing on stent car of pressure data supervising device.
Fig. 4 is the electrical schematic diagram of the pressure data supervising device in the utility model embodiment three.As shown in Figure 4, this device comprises infrared receiving circuit 401, pressure transducer 402, amplifying circuit 403, filtering circuit 404, sample circuit 405, MCU processor 406, LED screen driving circuit 407, LED display 408, monochromatic burner 409, tri coloured lantern 410 and rubber seal type intrinsic safety electric source 411, and wherein infrared receiving circuit 401, amplifying circuit 403, filtering circuit 404, sample circuit 405, MCU processor 406, LED screen driving circuit 407 belong to central processing module.
Further, described pressure transducer comprises the Wheatstone bridge that the equal force sensing resistance of four resistances is formed, and described force sensing resistance uses diffusion technique to be prepared on silicon diaphragm.
In pressure transducer, the resistance of pressure-active element can change along with the change of its pressure, and when applying voltage to pressure-active element, the change of this resistance can be converted into the change of voltage.Pressure-sensing device in the present embodiment make use of the piezoresistive effect of monocrystalline silicon, on silicon diaphragm, by the diffusion method in integrated technique, form the force sensing resistance that 4 resistances are equal, through AM aluminum metallization electrolysis and line, be connected into Wheatstone bridge, then be connected with outer lead by pressure welding method.The side of silicon diaphragm is the high pressure chest be connected with system under test (SUT), opposite side is low pressure chamber, when there is pressure differential and deformation occur in silicon diaphragm both sides, diaphragm each point produces stress, thus make the change in resistance of diffusion resistance, electric bridge out of trim, exports corresponding voltage, and the size of its voltage reflects the pressure difference value that diaphragm bears.
The magnitude of voltage exported due to pressure transducer is very little, is millivolt signal, can not Direct Sampling, therefore devises amplifying circuit, and preferably, amplifying circuit adopts instrument amplifier.Signal after amplifying circuit amplifies is exported to filtering circuit and is carried out filtering, and to eliminate common mode interference, preferably, filtering circuit adopts Butterworth second-order low-pass filter circuit, effectively can eliminate common mode interference, particularly power supply power frequency 50Hz and harmonic wave.Sample circuit is sampled to the signal that filtering circuit exports, and by the Signal transmissions that collects to MCU processor.By MCU processor, signal is processed, produce corresponding drive singal and early warning signal, and then driving LED screen driving circuit makes LED screen show force value, and instruction sheet colored lights and tri coloured lantern send early warning according to drive singal.In addition, infrared receiving circuit receives the infrared control signal sent by telepilot, and exports to MCU processor, and MCU processor processes signal, and the parts controlling correspondence accordingly adjust.
For pressing of prompting operating personnel's top board, the force value of four pillars shows by the pressure monitoring device of the utility model design in LED display, but operating personnel can not go when busy work to note the registration in LED display, therefore need provide more obviously and easily by the short time catch press information, inform operating personnel's current safety grade, therefore arrange early warning system, the utility model employs warning light, comprises monochromatic burner and tri coloured lantern.For improving security, choose maximal value in four strut pressure as early warning reference value.
MUC processor has divided 4 advanced warning grades, is followed successively by LOW, MID, HIGH and MAX from low to high; 5 intervals, are respectively Zero-LOW, LOW-MID, MID-HIGH, HIGH-MAX and > MAX.When early warning reference value drops on different interval, monochromatic burner and tri coloured lantern have different instructions.And early warning reference value is when different interval mapping, monochromatic burner can be pointed out in a flashing manner.Above-mentioned corresponding relation is: one, in boost process: when early warning reference value drops on Zero-LOW interval, monochromatic burner and tri coloured lantern all do not work; When early warning reference value drops on LOW-MID interval, monochromatic burner does not work, the green light of tri coloured lantern; When early warning reference value drops on MID-HIGH interval, monochromatic burner does not work, and the amber light of tri coloured lantern is bright; When early warning reference value drops on HIGH-MAX interval, monochromatic burner does not work, the when red of tri coloured lantern; When early warning reference value drops on > MAX interval, monochromatic burner is bright, the when red of tri coloured lantern.Two, in pressure reduction pilot lamp when each early warning is interval to light situation identical with boost process.In said process, monochromatic burner glimmers 5 seconds when transregional of early warning reference value.Such as, when early warning reference value drops on Zero-LOW interval, monochromatic burner does not work, the green light of tri coloured lantern, when early warning reference value becomes LOW-MID from Zero-LOW, the green light of tri coloured lantern does not go out, and monochromatic burner glimmers 5 seconds, then monochromatic burner goes out, and the green light of tri coloured lantern goes out, and amber light is bright.
Pressure data supervising device in the utility model embodiment, the design of pressure-active element have employed wheatstone bridge configuration, improves the acquisition capacity of this device to faint pressure parameter certificate; Coordinate the mode of display to achieve level Four early warning by monochromatic burner and tri coloured lantern, there is pressure range instruction and overpressure alarm function; Carry out follow-up fine processing by the pressure signal collected pressure transducer, make this device have the high feature of precision; The thickness of this device is less than the original manometric height of crawler rack car, avoids because dump overstocks yielding problem for a long time.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Skilled person in the art will appreciate that the utility model is not limited to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and protection domain of the present utility model can not be departed from.Therefore, although be described in further detail the utility model by above embodiment, but the utility model is not limited only to above embodiment, when not departing from the utility model design, can also comprise other Equivalent embodiments more, and scope of the present utility model is determined by appended right.
Claims (8)
1. based on a pressure data supervising device for crawler travel stent car, it is characterized in that, comprising: pressure transducer, central processing module, display device and prior-warning device;
Described pressure transducer is arranged on pillar, connecting central processing module, for gathering strut pressure data, and being transferred to central processing module;
Described central processing module connects display device and prior-warning device, for the treatment of the data that described pressure transducer collects, and produces display and early warning signal;
Described display device, for showing strut pressure value according to display;
Described prior-warning device, for realizing early warning according to early warning signal.
2. device according to claim 1, is characterized in that, also comprises telepilot, for setting advanced warning grade value, zero point of measurement value sensor and gain.
3. device according to claim 1, is characterized in that, also comprises rubber seal type intrinsic safety electric source, for supply voltage is converted to 12V, for device is powered.
4. device according to claim 1, is characterized in that, described display device is LED display screen.
5. device according to claim 1, is characterized in that, described prior-warning device is monochromatic burner and tri coloured lantern.
6. device according to claim 2, is characterized in that, central processing module comprises amplifying circuit, filtering circuit, sample circuit, micro-control unit MCU processor, LED drive circuit and infrared receiving circuit, wherein:
Amplifying circuit, filtering circuit and sample circuit order is connected, and the strut pressure data for being gathered by described pressure transducer carry out amplifying, filtering and sampling processing, and are provided to MCU processor;
MCU processor connects LED drive circuit, prior-warning device and infrared receiving circuit, for generation of display and early warning signal, is supplied to described LED drive circuit and prior-warning device respectively, and processes the infrared signal of telepilot transmission.
7. device according to claim 6, is characterized in that, described MCU processor comprises extraction module, divides module, generation module and control module, wherein:
Described extraction module is for extracting the maximal value in four strut pressure values;
Described division module is used for dividing four advanced warning grades according to the interval endpoint value of setting;
Described generation module for judging the advanced warning grade of described maximal value, and generates early warning signal accordingly;
Described control module shows the force value of four pillars for controlling display device, control prior-warning device and send early warning, and control assembly completes respective operations according to infrared signal.
8. device according to claim 1, is characterized in that, described pressure transducer comprises the Wheatstone bridge that the equal force sensing resistance of four resistances is formed, and described force sensing resistance uses diffusion technique to be prepared on silicon diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555753.9U CN204807246U (en) | 2015-07-28 | 2015-07-28 | Pressure data monitoring device based on a crawler unwheeling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520555753.9U CN204807246U (en) | 2015-07-28 | 2015-07-28 | Pressure data monitoring device based on a crawler unwheeling |
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| CN204807246U true CN204807246U (en) | 2015-11-25 |
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| CN201520555753.9U Active CN204807246U (en) | 2015-07-28 | 2015-07-28 | Pressure data monitoring device based on a crawler unwheeling |
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