CN103017705A - Pressure type hydraulic support height detection system and method - Google Patents
Pressure type hydraulic support height detection system and method Download PDFInfo
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- CN103017705A CN103017705A CN2012103668650A CN201210366865A CN103017705A CN 103017705 A CN103017705 A CN 103017705A CN 2012103668650 A CN2012103668650 A CN 2012103668650A CN 201210366865 A CN201210366865 A CN 201210366865A CN 103017705 A CN103017705 A CN 103017705A
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Abstract
In order to solve problems of higher cost, complex computation, lower accuracy, inconvenience in installation and overhaul in current hydraulic support height measurement in underground coal mines, the invention provides a pressure type hydraulic support height detection system and a pressure type hydraulic support height detection method. The pressure type hydraulic support height detection system comprises a pressure sensor, a control module, a wireless transmission module, a power supply module and a hydraulic flexible pipe; one end of the hydraulic flexible pipe is hermetically connected with the pressure sensor, the other end is open, and the hydraulic flexible pipe is filled with liquid; and the control module is connected with the pressure sensor, the wireless transmission module and the power supply module. The pressure type hydraulic support height detection system and the pressure type hydraulic support height detection method have the characteristics of low cost, simple and accurate measurement and convenience in installation, and can better match with the coordination work of the fully mechanized coal mining face of the underground coal mine and improve the work efficiency of the fully-mechanized coal mining face.
Description
Technical field
The present invention relates to the coal mine underground hydraulic support frame control system, be specially a kind of pressure type hydraulic support height detecting system and method.
Background technology
Along with coal digging automatization level is more and more higher, in the down-hole combined mining working of colliery, status monitoring and the control of coal excavation apparatus become the active demand in modern domestic colliery.The hydraulic support One's name is legion acts frequently, and needs the frequent height that gathers the hydraulic support top beam head, finishes the coordinative operation that fells and transports coal equipment with other fully-mechanized mining working such as coalcutter.
In underground mining, various types of hydraulic supports are used for finishing top plate supporting and prevent the task that this top braces is subsided too early.In the motion process of hydraulic support, need to fall the movement that frame could be realized hydraulic support, it is larger that the frame height falls in hydraulic support, the time of hydraulic support top board disengaging holding state is just longer, and the probability that causes top board to subside is just higher, and it is also just longer that the required time of frame falls in hydraulic support simultaneously.That controls to greatest extent hydraulic support falls the frame height, not only can realize hydraulic support to effective management of supporting roof, and can improve advancing velocity of hydraulic powered support.Therefore the accurate measurement of hydraulic support height just seemed particularly important.
The hydraulic support height gathers conventional method to be had: on back timber, caving shield and the base of hydraulic support double-shaft tilt angle sensor is installed respectively, measure inclination angle on back timber, caving shield and base and the horizontal direction by obliquity sensor, can calculate the height on hydraulic support top beam top according to the relevant physical dimension of known back timber, caving shield, base and linkage assembly and oil cylinder etc.In the actual use procedure, this mode measuring method exists that cost is higher, calculation of complex, degree of accuracy are lower, the problem of install, maintenance is inconvenient.
Summary of the invention
The present invention exists in order to solve existing colliery underground survey hydraulic support height that cost is higher, calculation of complex, degree of accuracy are lower, installs, the problem of maintenance inconvenience, and a kind of pressure type hydraulic support height detecting system and method are provided.
The present invention is concrete to adopt following technical scheme to realize:
Pressure type hydraulic support height detecting system, the height for measuring hydraulic support top beam is characterized in that: comprise pressure transducer, control module, wireless sending module, power module and hydraulic hose; The airtight Bonding pressure sensor of hydraulic hose one end, other end opening, and be fixed in the hydraulic support top beam top; Splendid attire certain capacity liquid in the hydraulic hose, hydraulic hose is fixed on the hydraulic support with the collar and fixed block, follows hydraulic support and moves; Control module links to each other with pressure transducer, wireless sending module and power module.
According to an aspect of the present invention, the liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, optional water, mercury.
According to an aspect of the present invention, pressure transducer is measured the pressure P of the liquid that hydraulic hose bottom is subject to, and send the force value of measuring to control module, the control module deal with data sends to specific base by wireless sending module, the user reads hydraulic hose base pressure Value Data from the base station, calculate pressure measurement point to the vertical height h of liquid level according to formula pressure P=ρ gh; Wherein, ρ is fluid density, and g is acceleration of gravity, and value is got 9.80N/kg, h be the pressure transducer measurement point to the vertical height of liquid level, unit rice.
According to an aspect of the present invention, described hydraulic support comprises wall supporting 1, extensible canopy 2, back timber 3, column 4, lifting jack 5, upper connecting rod 6, base 14, back bar 9, front rod 13, back link 12 and interrupter 16.
According to an aspect of the present invention, hydraulic support by side arm and after be configured to, side arm comprises one-level wall supporting 3, secondary protecting side 1, back timber 5, front column 6, rear column 9, upper connecting rod 7, front rod 8, back link 10 and base 23.
The present invention also provides a kind of pressure type hydraulic support height detection method, be used for measuring by the hydraulic support altitude measurement system that pressure transducer, control module, wireless sending module, power module and hydraulic hose form the height of hydraulic support top beam, described control module links to each other with pressure transducer, wireless sending module and power module, it is characterized in that:
At hydraulic support hydraulic hose is installed;
With the airtight Bonding pressure sensor of hydraulic hose one end, pressure transducer one end that connects is fixed in hydraulic support foundation or other is fixing local with respect to position base, other end opening, and be fixed in the hydraulic support top beam top, hydraulic hose is fixed on the hydraulic support with the collar and fixed block, follows hydraulic support and move;
The certain capacity liquid of in hydraulic hose, packing into;
Calculate the height of hydraulic support top beam by the fluid pressure of pressure transducer measurement.
According to an aspect of the present invention, the liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, optional water, mercury.
According to an aspect of the present invention, pressure transducer is measured the pressure P of the liquid that hydraulic hose bottom is subject to, and send the force value of measuring to control module, the control module deal with data sends to specific base by wireless sending module, the user reads hydraulic hose base pressure Value Data from the base station, calculate pressure measurement point to the vertical height h of liquid level according to formula pressure P=ρ gh; Wherein, ρ is fluid density, and g is acceleration of gravity, and value is got 9.80N/kg, h be the pressure transducer measurement point to the vertical height of liquid level, unit rice.
According to an aspect of the present invention, wherein hydraulic support comprises wall supporting 1, extensible canopy 2, back timber 3, column 4, lifting jack 5, upper connecting rod 6, base 14, back bar 9, front rod 13, back link 12 and interrupter 16.
According to an aspect of the present invention, hydraulic support wherein by side arm and after be configured to, side arm comprises one-level wall supporting 3, secondary protecting side 1, back timber 5, front column 6, rear column 9, upper connecting rod 7, front rod 8, back link 10 and base 23.
According to one embodiment of present invention, pressure type hydraulic support height detection sensor comprises pressure transducer, control module, wireless sending module, power module and hydraulic hose, the airtight Bonding pressure sensor of hydraulic hose one end, carrying liquid in the other end opening, hydraulic hose; The collection of control module Bonding pressure sensor, wireless sending module and power module.
Hydraulic hose can airtight carrying liquid, during use hydraulic hose opening one end is hung on the hydraulic support top beam top, and pressure transducer one end of connection is fixed at the bottom of the hydraulic support on the fine strain of millet.
Liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, and often selects water.The height of filling liquid should be identical with the height at hydraulic support top beam top, is convenient to accurate measurement.
Control module is chosen the MSP430 series monolithic that TI company produces, and this series monolithic has efficiently, the characteristics of low-power consumption.Pressure transducer is chosen the ccps32 model pressure transducer that Shenzhen Rui Delong company produces.Wireless sending module is chosen the CC1101 wireless module, and the CC1101 wireless module is operated in the 433M channel and carries out radio communication.
Compared with prior art, the present invention has with low cost, measures simply accurately the characteristics of being convenient to install, the better co-ordination of fully-mechanized mining working under the mixed coal mine, the work efficiency of raising fully-mechanized mining working.
Description of drawings
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is the theory diagram of pressure type hydraulic support height detection sensor of the present invention.
Fig. 2 is installation and the work synoptic diagram of pressure type hydraulic support height detection sensor of the present invention.
The master that Fig. 3 shows a kind of hydraulic support looks synoptic diagram.
The master that Fig. 4 shows a kind of hydraulic support looks synoptic diagram.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
According to one embodiment of present invention, Fig. 3 shows a kind of hydraulic support, comprise wall supporting 1, extensible canopy 2, back timber 3, column 4, lifting jack 5, upper connecting rod 6, base 14, back bar 9, front rod 13, back link 12 and interrupter 16, wherein, described front rod 13 and described back link 12 have two groups of both sides that also are arranged on symmetrically described hydraulic support, described wall supporting 1 is hingedly mounted on the front end of described extensible canopy 2, described extensible canopy 2 is installed in the front end of described back timber 3, the lower end of described front rod 13 and described back link 12 is hingedly mounted on the described base 14, the upper end of described front rod 13 and described back link 12 and described upper connecting rod 6 are hinged, described upper connecting rod 6, described front rod 13, described back link 12 and described base 14 form four-bar mechanism, the upper end of described upper connecting rod 6 and described back timber 3 are hinged, described hydraulic support comprises two described columns 4, two described columns 4 are arranged at respectively the both sides of described base 14, the upper and lower side of two described columns 4 is hinged with described back timber 3 and described base 14 respectively, described back bar 9 is hinged with the rear end of described back timber 3, at described back bar 9 downsides described interrupter 16 is installed, described interrupter 16 can prevent that lotion from flowing into this interrupter 16 front portions.In the present embodiment, described interrupter can be installed in described back bar bottom, also can be installed in described base top, as long as can realize stopping that lotion enters described interrupter the place ahead.In this technical scheme, adopt two root post supporting constructions, simple in structure, compact, and can make the anterior and posterior height of described back timber consistent, thereby make the support of described back timber more stable, solved the unsettled problem of back timber, eliminate potential safety hazard, improved safety coefficient, and, described base, described upper connecting rod, described front rod and described back link form four-bar linkage structure, can cooperate described column to realize rising frame and falling frame, be fit to the user demand of differing heights, and, frame will fall when not working, thereby reduce shared space, make things convenient for the movement of support, at described back bar downside described interrupter is installed, it is anterior and cause obstruction to moving frame to prevent that fill paste from flowing into support, makes that to move frame easier.
When described hydraulic support falls frame from state shown in Figure 3, wall supporting 1 rotates and is folding, extensible canopy 2 bounces back in the back timber 3, tail boom is regulated lifting jack 8 pulling interrupters 16 and is swung forward folding, it is folding to lower swing that back bar is regulated lifting jack 7 pulling back bars 9, column 4 retractions descend, and it is folding downwards to go up the lever regulated upper connecting rod 6 of lifting jack 5 promotions and then driving four-bar mechanism 19 simultaneously, finally make the folding frame that falls of whole described hydraulic support.When rising frame, column 4 at first extends, with back timber 3 jack-up, back timber 3 drives mounted thereto wall supporting 1, extensible canopy 2, back bar 9, back bar regulates lifting jack 7 and tail boom is regulated lifting jack 8 risings, back timber 3 also spurs connecting rod 6 and rises, spurring simultaneously four-bar mechanism 19 upwards launches, when column 4 is elongated to appropriate length, regulate again the angle of back timber 3 and surface level by upper lever regulated lifting jack 5, make back timber 3 be close to the tunnel roof, and then finish the expansion of wall supporting 1 and back bar 9, stretching out and the expansion of interrupter 16 of extensible canopy 2 finally returns to state shown in Figure 3.
Setting height(from bottom) detection system on above-mentioned hydraulic support comprises pressure transducer, control module, wireless sending module, power module and hydraulic hose, the airtight Bonding pressure sensor of hydraulic hose one end, fluid injection body in the other end opening, hydraulic hose; The collection of control module Bonding pressure sensor, wireless sending module and power module.
Hydraulic hose can airtight carrying liquid, during installation hydraulic hose opening one end is fixed in the hydraulic support top beam top, and pressure transducer one end of connection is fixed in hydraulic support foundation or other place fixing with respect to position base.Hydraulic hose is fixed on the hydraulic support with the collar and fixed block, follows hydraulic support and moves.
Liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, and often selects water.The height of filling liquid should be identical with the height at hydraulic support top beam top, is convenient to accurate measurement.
Concrete, (density of water is 1000kg/m to detect density under T=5-15 ℃ of the liquid working environment temperature
3), pressure transducer is measured the pressure P of the water that hydraulic hose bottom is subject to, and send the force value of measuring to control module, the control module deal with data sends to specific base by wireless sending module, the user can read from the base station hydraulic hose base pressure Value Data, and according to formula: pressure P=ρ gh can calculate pressure measurement point to the vertical height h of liquid level.ρ is that (density of water is 1000kg/m to fluid density
3), g is acceleration of gravity, value is got 9.80N/kg, h be the pressure transducer measurement point to the vertical height of liquid level, unit rice.
According to one embodiment of present invention, Fig. 4 shows a kind of integrated hydraulic support.This integrated hydraulic support by side arm and after be configured to, side arm comprises one-level wall supporting 3, secondary protecting side 1, back timber 5, front column 6, rear column 9, upper connecting rod 7, front rod 8, back link 10 and base 23, upper connecting rod 7, front rod 8, back link 10 and base 23 be hinged formation four-bar mechanism in twos, upper connecting rod 7 upper ends and back timber 5 middle parts are hinged, front column 6 and rear column 9 upper and lower sides are hinged with back timber 5 and base 23 respectively, be hinged with one-level between one-level wall supporting 3 and the back timber 5 and protect hydraulic cylinder 4, be hinged with secondary protecting side hydraulic cylinder 2 between secondary protecting side 1 and the one-level wall supporting 3, after-frame comprises after-frame back timber 13, connecting rod 17 on the after-frame, after-frame front rod 15, after-frame back link 16, after-frame base 21 and after-frame column 18, connecting rod 17 on the after-frame, after-frame front rod 15, after-frame back link 16 and after-frame base 21 be hinged formation four-bar mechanism in twos, connecting rod 17 upper ends and after-frame back timber 13 rear portions are hinged on the after-frame, after-frame column 18 upper and lower sides are hinged with after-frame back timber 13 and after-frame base 21 respectively, this side arm comprises two front columns 6 and a rear column 9, two front columns 6 are positioned at base 23 front end both sides, rear column 9 is positioned in the middle of the base rear end, upper connecting rod 7 is the H type, rear column 9 is arranged between two branches of connecting rod 7 bottoms, after-frame comprises two after-frame columns 18, connecting rod 17 is yi word pattern on the after-frame, distance on the H type between 7 liang of branch inboards of connecting rod is greater than the width of connecting rod 17 on the yi word pattern after-frame, connecting rod 17 can enter on the H type between connecting rod two branches on the after-frame when frame falls in support, form the alternating expression structure, frame four-bar mechanism movement interference before and after avoiding, be hinged with balance hydraulic cylinder 14 between connecting rod 17 middle parts and after-frame back timber 13 middle front parts on the after-frame, this hydraulic cylinder 14 is used for supporting top beam, and can regulate the horizontal level of back timber, after-frame back timber 13 rear ends are hinged with the back bar 19 that extends back, on after-frame base 21, also be provided with cage plate 27, telescopic baffle 20 and telescopic baffle hydraulic cylinder, cage plate 27 is fixed in after-frame base 21 rear portions, cage plate 27 slightly tilts to the base rear, cage plate 27 extends upward, the telescopic baffle hydraulic cylinder is located in the cage plate, telescopic baffle 20 is sheathed in the cage plate 27, be provided with the sliding pair along its length direction between flexible 20 baffle plates and cover 27 plates, telescopic baffle hydraulic cylinder two ends are hinged with cage plate and telescopic baffle respectively, the telescopic baffle upper end offers the Grouting Pipe connecting hole, under the effect of telescopic baffle hydraulic cylinder, telescopic baffle is moved up and down, guarantee that telescopic baffle upper end and rear exploration beam form sealing and contact, baffle plate when consisting of paste body filling, side shield with other support forms seal cavity again, and paste body filling is carried out in the goaf.Be provided with front stretching beam 11 and front stretching beam hydraulic cylinder in side arm back timber 5 rear end internal sleeve, after-frame back timber 13 front end sleeves are provided with rear extensible canopy 12 and rear extensible canopy hydraulic cylinder, and forward and backward stretching out contacts, and supporting is carried out in zone between the frame of front and back, prevent that spoil from falling.
Be provided with tail end filling structure 28 at after-frame base middle part, this tail end filling structural front view is taper, side view with round end and is ramped shaped, these tail end filling structure 28 1 ends contact with the cage plate 27 of after-frame, the other end is positioned at the rear end of after-frame base, and tail end filling structure is skewed from the telescopic baffle end to the after-frame base rear end, after fill paste solidifies, the after-frame reach, form an arch area, strengthen the intensity of filling structure, prevent that stuff are caving.After-frame base 21 front end downsides are provided with transition face, are provided with scaffold hydraulic cylinder 24 between the anterior crotch of side arm base, and the scaffold hydraulic cylinder is fixed on the side arm base, is convenient to move frame.Back bar 19 is by bearing pin and after-frame back timber 13 rear end pin joints, below this bearing pin axis, the back bar left side contacts with after-frame back timber right side, above this bearing pin axis, be provided with the distance of 20mm between back bar left side and the after-frame back timber right side, like this, when to the reach frame, back bar can upwards swing (generally in 5 °) by low-angle, reduces the friction force between back bar and the lotion, is convenient to move frame.
Setting height(from bottom) detection system on above-mentioned hydraulic support comprises pressure transducer, control module, wireless sending module, power module and hydraulic hose, the airtight Bonding pressure sensor of hydraulic hose one end, fluid injection body in the other end opening, hydraulic hose; The collection of control module Bonding pressure sensor, wireless sending module and power module.
Hydraulic hose can airtight carrying liquid, during installation hydraulic hose opening one end is fixed in the hydraulic support top beam top, and pressure transducer one end of connection is fixed in hydraulic support foundation or other place fixing with respect to position base.Hydraulic hose is fixed on the hydraulic support with the collar and fixed block, follows hydraulic support and moves.
Liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, and often selects water.The height of filling liquid should be identical with the height at hydraulic support top beam top, is convenient to accurate measurement.
Concrete, (density of water is 1000kg/m to detect density under T=5-15 ℃ of the liquid working environment temperature
3), pressure transducer is measured the pressure P of the water that hydraulic hose bottom is subject to, and send the force value of measuring to control module, the control module deal with data sends to specific base by wireless sending module, the user can read from the base station hydraulic hose base pressure Value Data, and according to formula: pressure P=ρ gh can calculate pressure measurement point to the vertical height h of liquid level.ρ is that (density of water is 1000kg/m to fluid density
3), g is acceleration of gravity, value is got 9.80N/kg, h be the pressure transducer measurement point to the vertical height of liquid level, unit rice.
According to one embodiment of present invention, pressure transducer detects the changing value of hydraulic support pressure in real time, comprises front standing pillar pressure, back prop pressure and front beam pressure; Displacement transducer detects the bearing height of hydraulic support in real time, passes stroke; Obliquity sensor is installed in respectively bracket base and back timber position, detects in real time the angle of pitch, the roll angle of the angle of pitch, roll angle and the direct back timber of the base of hydraulic support, and relevant information is merged, and judges the state of support; The support gesture detector receives the information of pressure, displacement and obliquity sensor in real time, the multi-source information that receives is carried out overall treatment, obtain accurately support attitude information, according to current support attitude information, the support gesture detector is adjusted the support attitude by solenoid valve, and it is steady to keep support; Simultaneously, show in real time the support attitude information by liquid crystal display, when attitude offsets transfinites, carry out sound and light alarm, and stop the support action; Carry out the calculating of appropriate algorithm in the crossheading main control computer, expansion realizes fault diagnosis functions.
Realize the device of hydraulic bracket posture detecting method: comprise pressure transducer, displacement transducer, obliquity sensor, support gesture detector, solenoid valve, liquid crystal display, acoustic-optic alarm, crossheading main control computer, pressure transducer, displacement transducer and obliquity sensor all are connected by the input end of signal condition transmitter with the support gesture detector, the output terminal of support gesture detector is connected with acoustic-optic alarm with liquid crystal display respectively, and the output terminal of support gesture detector is connected with hydraulic support by solenoid valve; The crossheading main control computer is connected with the support gesture detector by coupling mechanism, and the crossheading main control computer is connected with the ground main control computer by the down-hole switch; AC power is double loop power supply, and double loop power supply is connected by the input end of isolating coupler with the intrinsic safety electric source of support gesture detector; Connect by the CAN bus between many support gesture detector.
Pressure transducer, displacement transducer, obliquity sensor is used for gathering the pressure of hydraulic support each several part, displacement, obliquity information, the signal that collects converts standard signal to through the signal condition transmitter, be input to the support gesture detector, the support gesture detector is carried out aggregation of data, analyze, attitude to support detects, when the support attitude offsets, the support gesture detector is sent and is adjusted order to solenoid valve, the action of solenoid control hydraulic support, correct the support attitude, the support gesture detector is with the real-time attitude information input of support liquid crystal display simultaneously, and liquid crystal display shows the support attitude information in real time; When attitude parameter surpasses the warning critical value, by the acoustic-optic alarm information that gives a warning;
Electricity hydraulic control in down-hole contacts by CAN bus network and all support gesture detector foundation with the crossheading main control computer, the attitude information of support transfers to the downhole crossheading main control computer by the CAN bus network and gathers, stores and show, also can enter the down-hole looped network through the down-hole switch, transfer data to the indoor ground main control computer of ground maneuvers.
In accordance with a preferred embodiment of the present invention, described hydraulic support comprises hinged in turn back timber, caving shield, connecting rod, base.
Be provided with the back timber obliquity sensor on the described back timber, be provided with the base obliquity sensor on the described base, be provided with the caving shield obliquity sensor on the described caving shield, be provided with the connecting rod obliquity sensor on the described connecting rod, wherein be understandable that, in some hydraulic support, it can have element structure different and above-mentioned hydraulic support, as have more in turn hinged member, in this case, on each member, obliquity sensor need be set respectively.Four members in this embodiment only are example, and it is not that it is limited.Described each obliquity sensor preferably adopts twin shaft acceleration obliquity sensor, and its quality is less, and the inertial force that produces when large impact or high overload is also very little, so have stronger anti-vibration or impact capacity, is very suitable for using in the subsurface environment.In setting up procedure, the measurement axle that guarantees each obliquity sensor is substantially parallel with the length direction of each parts that this obliquity sensor is set, be that each obliquity sensor is substantially vertical with the swaying direction of its installation component, that is to say, the measurement axle of back timber obliquity sensor is substantially vertical with the swaying direction of back timber, the measurement axle of base obliquity sensor is substantially vertical with the swaying direction of base, the caving shield obliquity sensor is substantially vertical with the swaying direction of caving shield, the connecting rod obliquity sensor is substantially vertical with the swaying direction of connecting rod, in this way, guarantee that each obliquity sensor can accurately measure the inclination angle of each part length direction and surface level.
Hydraulic support also comprises control device, and control device can be bracket controller, or other any unit with computing function, preferably adopts embedded computer system.Each obliquity sensor adopts the mode of serial or parallel connection to connect respectively described control device, inclination data to the control device transmission measurement, control device according to certain algorithm, such as trigonometric function, draws the height h of hydraulic support according to inclination data in conjunction with the length computation of each parts.
The method of measuring above-mentioned support height is, when hydraulic support is in horizontality, directly calculates the inclined height of each member according to its each member length and inclinometer, and each inclined height addition obtains the height of hydraulic support; When hydraulic support is not in horizontality, at first according to the elevation-depression angle that is installed in the obliquity sensor judgement hydraulic support on the hydraulic support foundation member, then measure the inclination angle of each member of hydraulic support, by described luffing angle described inclination angle is revised, revise according to hydraulic support high computational model, calculate the inclined height of each member according to its each member length and revised inclinometer, each inclined height addition obtains the height of hydraulic support.
The hydraulic support height value that calculates is used for falling the post maximum height at hydraulic moving stand process restriction hydraulic support.
The concrete steps of measuring are preferably:
In support control device, input the length of back timber, caving shield, connecting rod and base;
Measure respectively the inclination angle of back timber, caving shield, connecting rod and base relative level face by back timber obliquity sensor, caving shield obliquity sensor, connecting rod obliquity sensor and base obliquity sensor, and described inclination angle is transferred to support control device;
Support control device calculates the vertical height of each parts by inclination angle and the length numerical value of each parts, each vertical height addition is obtained the whole height of hydraulic support.It should be noted that because each parts generally is not to be mostly hinged from middle parts from an end, there is certain error in the height that therefore so calculates.Obtain more accurate altitude information such as need, then can use several different methods, as make the length of each parts of input not be its original length, should be the top board front end to the length between the pin joint of the length of caving shield pin joint, pin joint that caving shield length should be caving shield and top board and caving shield and tail boom such as top board length, coefficient of balance etc. perhaps is set in control device.These error cancelling methods are common practise of this area, will not tire out at this and state.
According to one embodiment of present invention, can be applied to aforesaid hydraulic support, a kind of pressure type hydraulic support height detection sensor is provided, comprise pressure transducer, control module, wireless sending module, power module and hydraulic hose, the airtight Bonding pressure sensor of hydraulic hose one end, fluid injection body in the other end opening, hydraulic hose; The collection of control module Bonding pressure sensor, wireless sending module and power module.
Hydraulic hose can airtight carrying liquid, during installation hydraulic hose opening one end is fixed in the hydraulic support top beam top, and pressure transducer one end of connection is fixed in hydraulic support foundation or other place fixing with respect to position base.Hydraulic hose is fixed on the hydraulic support with the collar and fixed block, follows hydraulic support and moves.
Liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, and often selects water, mercury, wet goods liquid.The height of filling liquid should be identical with the height at hydraulic support top beam top, is convenient to accurate measurement.Control module is chosen the MSP430 series monolithic that TI company produces, and this series monolithic has efficiently, the characteristics of low-power consumption.Pressure transducer is chosen the ccps32 model pressure transducer that Shenzhen Rui Delong company produces.Wireless sending module is chosen the CC1101 wireless module, and the CC1101 wireless module is operated in the 433M channel and carries out radio communication.
Concrete, (density of water is 1000kg/m to detect density under T=5-15 ℃ of the liquid working environment temperature
3), pressure transducer is measured the pressure P of the water that hydraulic hose bottom is subject to, and send the force value of measuring to control module, the control module deal with data sends to specific base by wireless sending module, the user can read from the base station hydraulic hose base pressure Value Data, and according to formula: pressure P=ρ gh can calculate pressure measurement point to the vertical height h of liquid level.ρ is that (density of water is 1000kg/m to fluid density
3), g is acceleration of gravity, value is got 9.80N/kg, h be the pressure transducer measurement point to the vertical height of liquid level, unit rice.
Although in specific embodiments, described embodiment of the present invention and various functional module thereof, but be to be understood that, can realize embodiment of the present invention with hardware, software, firmware, middleware or their combination, and embodiment of the present invention can be used in multiple systems, subsystem, assembly or its sub-component.Each embodiment of the present invention can with other embodiment in device mutually make up, rather than isolated, single embodiment can mutually merge between all embodiment and forms new embodiment or different solutions.
Although the present invention detailed illustrate and described one relevant and specifically implement the example reference, those skilled in the art should be understood that, can make in the form and details various changes not deviating from the spirit and scope of the present invention.These change the claim of the present invention scope required for protection that all will fall into.
Claims (10)
1. pressure type hydraulic support height detecting system is used for measuring the height of hydraulic support top beam, it is characterized in that:
Comprise pressure transducer, control module, wireless sending module, power module and hydraulic hose;
The airtight Bonding pressure sensor of hydraulic hose one end, other end opening, and be fixed in the hydraulic support top beam top;
Splendid attire certain capacity liquid in the hydraulic hose, hydraulic hose is fixed on the hydraulic support with the collar and fixed block, follows hydraulic support and moves;
Control module links to each other with pressure transducer, wireless sending module and power module.
2. pressure type hydraulic support height detection sensor as claimed in claim 1, it is characterized in that: the liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, optional water, mercury.
3. such as arbitrary pressure type hydraulic support height detecting system among the claim 1-2, it is characterized in that: pressure transducer is measured the pressure P of the liquid that hydraulic hose bottom is subject to, and send the force value of measuring to control module, the control module deal with data sends to specific base by wireless sending module, the user reads hydraulic hose base pressure Value Data from the base station, calculate pressure measurement point to the vertical height h of liquid level according to formula pressure P=ρ gh; Wherein, ρ is fluid density, and g is acceleration of gravity, and value is got 9.80N/kg, h be the pressure transducer measurement point to the vertical height of liquid level, unit rice.
4. pressure type hydraulic support height detecting system as claimed in claim 1, it is characterized in that: described hydraulic support comprises wall supporting 1, extensible canopy 2, back timber 3, column 4, lifting jack 5, upper connecting rod 6, base 14, back bar 9, front rod 13, back link 12 and interrupter 16.
5. pressure type hydraulic support height detecting system as claimed in claim 1, it is characterized in that: hydraulic support by side arm and after be configured to, side arm comprises one-level wall supporting 3, secondary protecting side 1, back timber 5, front column 6, rear column 9, upper connecting rod 7, front rod 8, back link 10 and base 23.
6. pressure type hydraulic support height detection method, be used for measuring by the hydraulic support altitude measurement system that pressure transducer, control module, wireless sending module, power module and hydraulic hose form the height of hydraulic support top beam, described control module links to each other with pressure transducer, wireless sending module and power module, it is characterized in that:
At hydraulic support hydraulic hose is installed;
With the airtight Bonding pressure sensor of hydraulic hose one end, pressure transducer one end that connects is fixed in hydraulic support foundation or other is fixing local with respect to position base, other end opening, and be fixed in the hydraulic support top beam top, hydraulic hose is fixed on the hydraulic support with the collar and fixed block, follows hydraulic support and move;
The certain capacity liquid of in hydraulic hose, packing into;
Calculate the height of hydraulic support top beam by the fluid pressure of pressure transducer measurement.
7. pressure type hydraulic support height detection sensor as claimed in claim 6, it is characterized in that: the liquid in the hydraulic hose can be selected the common nontoxic liquid that is easy to carry, optional water, mercury.
8. such as arbitrary pressure type hydraulic support height detecting system among the claim 6-7, it is characterized in that: pressure transducer is measured the pressure P of the liquid that hydraulic hose bottom is subject to, and send the force value of measuring to control module, the control module deal with data sends to specific base by wireless sending module, the user reads hydraulic hose base pressure Value Data from the base station, calculate pressure measurement point to the vertical height h of liquid level according to formula pressure P=ρ gh; Wherein, ρ is fluid density, and g is acceleration of gravity, and value is got 9.80N/kg, h be the pressure transducer measurement point to the vertical height of liquid level, unit rice.
9. pressure type hydraulic support height detecting system as claimed in claim 6, it is characterized in that: hydraulic support wherein comprises wall supporting 1, extensible canopy 2, back timber 3, column 4, lifting jack 5, upper connecting rod 6, base 14, back bar 9, front rod 13, back link 12 and interrupter 16.
10. pressure type hydraulic support height detecting system as claimed in claim 6, it is characterized in that: hydraulic support wherein by side arm and after be configured to, side arm comprises one-level wall supporting 3, secondary protecting side 1, back timber 5, front column 6, rear column 9, upper connecting rod 7, front rod 8, back link 10 and base 23.
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