CN101241050A - Highway road surface indoor simulated spreading test stand - Google Patents
Highway road surface indoor simulated spreading test stand Download PDFInfo
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- CN101241050A CN101241050A CNA2008100177063A CN200810017706A CN101241050A CN 101241050 A CN101241050 A CN 101241050A CN A2008100177063 A CNA2008100177063 A CN A2008100177063A CN 200810017706 A CN200810017706 A CN 200810017706A CN 101241050 A CN101241050 A CN 101241050A
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Abstract
The invention discloses a road surface indoor simulation paving test-bed associated with an agitator agitating the adopted mixture, comprising: a frame; a metering disc, a virtual height control sloping plate, a stock guide and an ironing mechanism installed in middle of the frame orderly from left and right; an active road surface plate installed at bottom of the frame, a bearing roller, a control system and screed hydraulic pressure system and a power system controlled by the control system. The ironing mechanism is composed of two towing arms, an ironing plate, elevation regulating device and eccentric vibration exciter installed on the ironing plate. A vibration beam and a towing arm which is controlled by the control system and connected with the ironing plate are installed at outer side of the ironing plate box. The screed hydraulic pressure system controlling the towing air is composed of a motor; a hydraulic pressure motor; a screed hydraulic pressure tank; two high-speed switching valves, electromagnetic reversing valve and governing valve connected in series orderly in oil channel. The invention is simple and convenient to operate with flexible control and wide application. The invention can simulate various paving work conditions of road surfaces on site in doors.
Description
Technical field
The present invention relates to the road engineering technical field, particularly relate to a kind of highway road surface indoor simulated spreading test stand.
Background technology
At present, domestic researchist adopts the screed of flat clamp simulated roadway paver and the interaction of compound mostly, though can correspondingly draw the optimum range of the optimized scope and the Mixture Ratio of mechanical parameter, but in this test, flat clamp phase road pavement does not have moving of horizontal direction, and promptly it can not simulate the process of advancing of screed and the process that the road surface is shaped.Thereby present employed analogy method can not effectively solve the packing and the flatness problem on road surface, so that its test findings can not be understood interactional characteristic issues between compound and the paver screed well.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of highway road surface indoor simulated spreading test stand at above-mentioned deficiency of the prior art, and it is simple to operation, control flexible and of many uses, can be in the operating mode that paves on the on-the-spot multiple road surface of lab simulation.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of highway road surface indoor simulated spreading test stand, be used with the stirring machine that the used compound of simulation paving concrete pavement is stirred, comprise frame, be installed in the metering flashboard of central rack from left to right successively, swash plate is highly controlled in empty shop, stock guide and ironing mechanism, be installed in the frame bottom and drive the active ways panel of move left and right in orbit by drives structure, be positioned at the pressure-bearing roller on ironing mechanism right side, the levelling hydraulic system and the power system that are installed in the control system in the switch board and control by control system; Described power system is respectively drives structure, metering flashboard, swash plate, ironing mechanism and pressure-bearing roller are highly controlled in empty shop provides power; Described ironing mechanism is made up of two draft arms, screeds and the angle regulating device and the eccentric activator that are installed on the screed, the casing outside of screed is equipped with the beam that vibrates by control system control, two draft arm symmetries are installed in the both sides, front and back of frame and join with screed respectively, on the frame of draft arm towing point top the eccentric runner that towing point is applied interference is installed also, stock guide is installed in screed casing left side; The described levelling hydraulic system that draft arm is controlled is made up of motor, oil motor, levelling hydraulic jack, two high-speed switch valves, solenoid directional control valve and flow speed control valves being serially connected in the oil circuit successively, wherein the levelling hydraulic jack is positioned at the towing point top of draft arm and joins with draft arm, and the levelling hydraulic jack outside is equipped with the levelling sensor; Be serially connected with the force transducer of measuring active ways panel moving resistance between drives structure and the active ways panel, the pressure-bearing roller outside is equipped with the displacement transducer that its depression degree is measured, and levelling sensor, force transducer and displacement transducer join with control system respectively.
As a preferred embodiment of the present invention, described control system is the PLC Programmable Logic Controller, is serially connected with A/D converter between itself and the levelling sensor, and the PLC Programmable Logic Controller joins with two high-speed switch valves and solenoid directional control valve respectively by the SSR solid-state relay.
Described PLC Programmable Logic Controller is a SIMATIC S7-200 series, and A/D converter is EM235, and described solenoid directional control valve is the reversal valve of M type meta function.
As another kind of preferred version of the present invention, also comprise the industrial computer that matches with the PLC Programmable Logic Controller in the described control system, become the horizontal wall inscription control system the two common composition.
As another preferred version of the present invention, two longitudinal gradient levelling control system that longitudinal gradient control system and right side longitudinal gradient control system were formed on the left of described change horizontal wall inscription control system was served as reasons, left side longitudinal gradient control system and right side longitudinal gradient control system are controlled the draft arm of both sides before and after the frame respectively and are formed by PLC Programmable Logic Controller and industrial computer, and the levelling hydraulic system comprises corresponding left side and right side two cover levelling hydraulic systems;
PLC Programmable Logic Controller in the longitudinal gradient control system of left side and industrial computer are according to the right high-speed switch valve work in left high-speed switch valve, left solenoid directional control valve and the right side levelling hydraulic system in the corresponding control left side levelling of the detection signal of the left longitudinal gradient levelling sensor hydraulic system, left side high-speed switch valve, left solenoid directional control valve and right high-speed switch valve are controlled left levelling oil cylinder simultaneously, and left levelling oil cylinder is controlled ironing mechanism by the draft arm that joins with it;
PLC Programmable Logic Controller in the longitudinal gradient control system of right side and industrial computer are according to the left high-speed switch valve work in right high-speed switch valve, right solenoid directional control valve and the left side levelling hydraulic system in the corresponding control of the detection signal right side levelling hydraulic system of right longitudinal gradient levelling sensor, right high-speed switch valve, right solenoid directional control valve and left high-speed switch valve are controlled right levelling oil cylinder simultaneously, and right levelling oil cylinder is controlled ironing mechanism by the draft arm that joins with it.
Described stirring machine is the forced mixer that is installed in the frame leftmost side, active ways panel top, and horizontal arrangement has two shafts by the reverse constant speed rotation of motor drives in its stirred pot.
As the present invention further optimization scheme, the quantity of the described beam that vibrates is two, is installed in the both sides, front and back of screed casing respectively, the described tilting movement mechanism of beam for being connected to form by connecting rod and master arm of vibrating.
As further preferred version of the present invention, described control system is highly controlled swash plate, eccentric activator and drives structure and is joined with metering flashboard, empty shop respectively.
As further again preferred version of the present invention, described drives structure is a windlass, and it drives movable road plate move left and right in orbit by wire rope; Described active ways panel is welded by shaped steel and steel plate, the cement concrete entity that its internal cavities is full of for cast, and both sides are equipped with both sides retaining swash plate before and after the active ways panel of screed below.
As another preferred version of the present invention, described power system is a hydraulic system, hydraulic system comprises successively motor, oil motor and the hydraulic jack that links to each other, and its hydraulic jack comprises and is installed in screed top and the lifting hydraulic jack that screed is driven, gives supporting roll compressing cylinder that the pressure-bearing roller provides pressure and the hydraulic jack that swash plate drives is highly controlled in drives structure, metering flashboard and empty shop; Frame is provided with the guide groove of using for the oscilaltion of metering flashboard; Described angle regulating device is the elevation angle adjusting screw(rod) that is installed on the screed, and described pressure-bearing roller top is equipped with load transducer.
The present invention compared with prior art has the following advantages: 1, simple to operation, control flexibly; 2, rational in infrastructure, novel in design and economical and practical, it is according to relative motion principle, adopts road level to move and way that working installations of paver does not move is come in the laboratory simulation sub-base grader course of work and road surface forming process; 3, its control system is the common change horizontal wall inscription control system of forming of PLC Programmable Logic Controller and industrial computer, the The whole control system perfect in shape and function, test effect is good and of many uses, can be in the operating mode that paves on the on-the-spot multiple road surface of lab simulation, especially the active ways panel that is adopted can be simulated the process of advancing of screed and the whole process that the road surface is shaped, the packing and the flatness problem of paving concrete pavement can be effectively solved, also interactional characteristic issues between compound and the paver screed can be understood well according to its test findings; 4, the influence of slurry effect is proposed in the present invention's first packing, stone roller property and the liquefaction that can study the frequency of operation of vibration frequency, the amplitude of paver screed and the beam that vibrates and the static pressure of screed, the speed that paves, Mixture Ratio parameter road pavement; Also can study road surface with first packing load-bearing capacity and influence factor thereof to street roller, in the time of can studying roller drum and act on the road surface that just packing is different, the relation of its linear pressure and roller depression.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention.
Fig. 2 is the control circuit theory diagram of control system part of the present invention.
Fig. 3 is the control relation structured flowchart between control system of the present invention and the levelling hydraulic system.
Fig. 4 becomes left side longitudinal gradient control system signal transfer line figure in the horizontal wall inscription control system for the present invention.
Fig. 5 becomes right side longitudinal gradient control system signal transfer line figure in the horizontal wall inscription control system for the present invention.
Description of reference numerals:
The 1-frame; The 2-beam that vibrates; 3-active ways panel;
The 4-windlass; The 5-control system; The 6-switch board;
7-measures flashboard; 8-highly controls swash plate in empty shop; 9-elevation angle adjusting screw(rod);
The 10-screed; The 11-eccentric activator; The 12-draft arm;
The 13-hydraulic system; 14-levelling hydraulic system; 15-levelling sensor;
The 16-force transducer; The 17-displacement transducer; 18-pressure-bearing roller;
The eccentric runner of 19-; The 20-track; 21-levelling hydraulic jack;
22-promotes hydraulic jack; The 23-forced mixer; 24-both sides retaining swash plate;
The 25-stock guide; The 26-industrial computer; The 27-keyboard;
28-left side solenoid directional control valve; 29-left side high-speed switch valve; The right high-speed switch valve of 30-;
31-left side levelling oil cylinder; 32-presses mechanism; The right longitudinal gradient sensor of 33-;
The right solenoid directional control valve of 34-; The right levelling oil cylinder of 35-; 36-levelling sensor;
The 37-SSR solid-state relay; The 38-high-speed switch valve; The 39-solenoid directional control valve;
The 40-load transducer; 41-both sides retaining swash plate; The 42-stock guide;
43-left side longitudinal gradient sensor.
Embodiment
As shown in Figure 1 and Figure 2, the present invention is used with the stirring machine that the used compound of simulation paving concrete pavement is stirred, and comprises frame 1, is installed in the metering flashboard 7 at frame 1 middle part, empty shop successively from left to right and highly controls swash plate 8, stock guide 42 and ironing mechanism 32, be installed in the active ways panel 3, the pressure-bearing roller 18 that is positioned at ironing mechanism 32 right sides that move before and after driving on track 20 by drives structure frame 1 bottom, be installed in the control system 5 of switch board 6 and levelling hydraulic system 14 and the power system of being controlled by control system 5.The drives structure that wherein drives active ways panel 3 move left and right is a windlass 4, and it drives movable road plate 3 front and back on track 20 by wire rope and moves.And active ways panel 3 is welded by shaped steel and steel plate, the cement concrete entity that its internal cavities is full of for cast.Employed stirring machine is the forced mixer 23 that is installed in frame 1 leftmost side, active ways panel 3 tops, and horizontal arrangement has two shafts by the reverse constant speed rotation of motor drives in its stirred pot.Described control system 5 is highly controlled swash plate 8, eccentric activator 11 and windlass 4 and is joined with metering flashboard 7, empty shop respectively, respectively metering flashboard 7, empty shop is highly controlled swash plate 8, eccentric activator 11 and windlass 4 and is carried out corresponding control.In addition, be serially connected with the force transducer 16 of measuring active ways panel 3 moving resistances between drives structure and the active ways panel 3, pressure-bearing roller 18 outsides are equipped with the displacement transducer 17 that its depression degree is measured, pressure-bearing roller 18 tops are equipped with load transducer 40, levelling sensor 36, force transducer 16, displacement transducer 17 and load transducer 40 join with control system 5 respectively, in real time to detected each the road signal of control system 5 feedbacks.Each road signal that 5 pairs of control system are imported into is handled the back through internal analysis metering flashboard 7, empty shop is highly controlled swash plate 8, eccentric activator 11 and windlass 4 and made corresponding control, shows the check and analysis result simultaneously.
Described ironing mechanism 32 forms the mode of the directed exciting of eccentric activator 11 employings by two draft arms 12, screed 10 and the angle regulating device and the eccentric activator 11 that are installed on the screed 10.The casing outside of screed 10 is equipped with the beam 2 that vibrates by control system 5 controls, two draft arm 12 symmetries are installed in the left and right sides of frame 1 and join with screed 10 respectively, on the frame 1 of draft arm 12 towing points top the eccentric runner 19 that towing point is applied interference is installed also, the eccentric runner 19 that is provided with can apply interference to towing point, such as imitating input step signal etc., eccentric runner 19 is installed on of frame 1, and its left-right symmetric, the synchronous rotation in both sides can make the both sides towing point move up and down synchronously.When the eccentric runner 19 of artificial fast rotational, towing point will have an approximate step input, again because the inertia of system is very big, according to test findings, this step signal can be seen as the standard step signal, in addition because the eccentric throw difference of eccentric runner 19, thereby can produce different perpendicular displacement amounts.Angle regulating device wherein is the elevation angle adjusting screw(rod) 9 that is installed on the screed 10, rotation elevation angle adjusting screw(rod) 9 can change the elevation angle size of screed 10, in concrete process of the test according to the difference of shop material and thickness thereof, to big or small corresponding adjusting the in the elevation angle.The both sides, active ways panel 3 front and back of screed 10 belows are equipped with both sides retaining swash plate 41.And stock guide 42 is installed in the casing outside of screed 10.The quantity of beam 2 of vibrating is two, is installed in the both sides, front and back of screed 10 casings respectively, and the tilting movement mechanism of beam 2 for being connected to form by connecting rod and master arm of vibrating, and changes the vertical amplitude of the beam 2 that vibrates by the length that changes its connecting rod and master arm.And highly control the setting height(from bottom) of swash plate 8 and the void shop height that degree of tilt can be spread coefficient control compound by void by adjusting empty shop.Simultaneously, frame 1 is provided with the guide groove of using for 7 oscilaltions of metering flashboard.
Its power system is a hydraulic system 13, hydraulic system 13 comprises successively motor, oil motor and the hydraulic jack that links to each other, and hydraulic jack comprises and is installed in screed 10 tops and the lifting hydraulic jack 22 that screed 10 is driven, gives supporting roll compressing cylinder that pressure-bearing roller 18 provides pressure and the hydraulic jack that swash plate 8 drives is highly controlled in windlass 4, metering flashboard 7 and empty shop.That is to say that power system is respectively drives structure, metering flashboard 7, swash plate 8, ironing mechanism 32 and pressure-bearing roller 18 are highly controlled in empty shop provides power.In process of the test, drive the lifting in guide groove of metering flashboard 7 by hydraulic jack; The lifting of finishing screed 10 by the lifting hydraulic jack 22 that is arranged on screed 10 tops with fall, in normal working conditions, screed 10 is in quick condition, it is inoperative to promote hydraulic jack 22; Need provide pressure at right angle by the corresponding pressure-bearing roller 18 of giving of supporting roll compressing cylinder by concrete test, again because pressure-bearing roller 18 tops are equipped with load transducer 40, can the pressure at right angle on the being applied to pressure-bearing roller 18 be detected simultaneously by load transducer 40.
As shown in Figure 3, the levelling hydraulic system of among the present invention draft arm 12 being controlled 14 is made up of motor, oil motor, levelling hydraulic jack 21, two high-speed switch valves 38, solenoid directional control valve 39 and the flow speed control valve that are serially connected in the circuit successively.Wherein levelling hydraulic jack 21 is positioned at the towing point top of draft arm 12 and joins with draft arm 12, and levelling hydraulic jack 21 outsides are equipped with levelling sensor 36.Described control system 5 is a PLC Programmable Logic Controller 25, is serially connected with A/D converter 24 between itself and the levelling sensor 36, and PLC Programmable Logic Controller 25 joins with two high-speed switch valves 38 and solenoid directional control valve 39 respectively by SSR solid-state relay 37.And PLC Programmable Logic Controller 25 is a SIMATIC S7-200 series, and A/D converter 24 is EM235, and described solenoid directional control valve 39 is the reversal valve of M type meta function.
In conjunction with Fig. 4, Fig. 5, also comprise the industrial computer 26 that matches with PLC Programmable Logic Controller 25 in the control system 5, become the horizontal wall inscription control system the two common composition.Two longitudinal gradient levelling control system that longitudinal gradient control system and right side longitudinal gradient control system were formed on the left of described change horizontal wall inscription control system was served as reasons, left side longitudinal gradient control system is with right side longitudinal gradient control system is controlled the draft arm 12 of frame 1 left and right sides respectively and form by PLC Programmable Logic Controller 25 and industrial computer 26, and levelling hydraulic system 14 comprises that corresponding left side and right side two overlap the levelling hydraulic systems.Wherein the PLC Programmable Logic Controller 25 in the longitudinal gradient control system of left side is worked according to the right high-speed switch valve 30 in left high-speed switch valve 29, left solenoid directional control valve 28 and the right side levelling hydraulic system in the corresponding control left side levelling of the detection signal of left longitudinal gradient levelling sensor 43 hydraulic system with industrial computer 26, left side high-speed switch valve 29, left solenoid directional control valve 28 and right high-speed switch valve 30 are controlled left levelling oil cylinder 31 simultaneously, and left levelling oil cylinder 31 is controlled by 12 pairs of ironings of draft arm mechanism 32 of joining with it.PLC Programmable Logic Controller 25 in the longitudinal gradient control system of right side is worked according to the left high-speed switch valve in right high-speed switch valve 30, right solenoid directional control valve 34 and the left side levelling hydraulic system in the corresponding control of the detection signal right side levelling hydraulic system of right longitudinal gradient levelling sensor 33 29 with industrial computer 26, right high-speed switch valve 30, right solenoid directional control valve 34 and left high-speed switch valve 29 are controlled right levelling oil cylinder 35 simultaneously, and right levelling oil cylinder 35 is controlled by 12 pairs of ironings of draft arm mechanism 32 of joining with it.
The signal transfer line of left side longitudinal gradient control system is: reference signal a of the sensor of longitudinal gradient levelling at first left 43 inputs
0, the signal that left afterwards longitudinal gradient levelling sensor 43 is detected inputs to PLC Programmable Logic Controller 25 and industrial computer 26 by A/D converter 24 respectively, and wherein the duty of industrial computer 26 can be carried out relative set by keyboard 27; PLC Programmable Logic Controller 25 is controlled with the right high-speed switch valve 30 that industrial computer 26 is tackled in left high-speed switch valve 29, left solenoid directional control valve 28 and the right side levelling hydraulic system mutually according to the detection signal that is imported into; And left afterwards high-speed switch valve 29, left solenoid directional control valve 28 tackle left levelling oil cylinder 31 mutually with right high-speed switch valve 30 and control, and applies undesired signal r on the output signal of left levelling oil cylinder 31
1, its output signal a afterwards
1One the tunnel directly is superimposed upon reference signal a
0On, another road is through pressing mechanism 32, applying undesired signal r
2Back output signal a
2And be superimposed upon reference signal a
0On.Right side longitudinal gradient control system is identical with the signal transfer line of left side longitudinal gradient control system.
The course of work of the present invention is: according to concrete test needs, adjust the height of metering flashboard 7, empty shop earlier and highly control the drive speed of the frequency of operation of the setting height(from bottom) of swash plate 8 and degree of tilt, the elevation angle size of screed 10, the beam 2 that vibrates and vertical amplitude and windlass 4 speed that promptly paves before the experiment.Afterwards, calculate the consumption of each composition in the compound by match ratio, with the various compositions of platform scale weighing and pour in the hopper of forced mixer 23, wherein when stirring, directly pour into water in the stirred pot, after concrete mixer stirs 3 minutes, unload and drop on the active ways panel 3, then under the traction of windlass 4 along with the moving right of active ways panel 3, force transducer 16 detects the moving resistances of active ways panel 3 in real time.
At first concrete is installed in metering flashboard 7 stricklings in frame 1 left side, also can be aided with artificial strickling in case of necessity; After highly controlling swash plate 8 through empty shop successively again, the concrete empty shop of loose obstruction highly reaches testing requirements; Active ways panel 3 continues to advance with the speed of paving that requires to the right under the drive of windlass 4 then, concrete is then through entering the below of the beam 2 that vibrates behind the stock guide 42, the beam 2 that vibrates is rammed concrete with the frequency of operation and the fixing amplitude that require, enter screed 10 casings below after the concrete again, the casing of screed 10 is under the effect of eccentric activator 11, vibrate at concrete surface with vibration frequency and the amplitude that requires, roll regolith jolt ramming with fixed attention; Thereby through behind the screed 10, the closely knit shaping in road surface and have certain first packing, enter pressure-bearing roller 18 belows subsequently, active ways panel 3 halts at this moment, pressure-bearing roller 18 is fallen to the road surface of active ways panel 3, the supporting roll compressing cylinder applies pressure at right angle to pressure-bearing roller 18, the depression degree of 17 pairs of pressure-bearing rollers 18 of simultaneous displacement sensor detects in real time, the different vertical pressure that 40 pairs of supporting roll compressing cylinders of load transducer are applied detects in real time, promptly carry out the pressure of pressure-bearing roller 18---the depression test, simultaneous displacement sensor 17 passes to PLC Programmable Logic Controller 25 with load transducer 40 with detected signal, and PLC Programmable Logic Controller 25 is through the inter-process computing and show testing result; Pressure-bearing roller 18 rises then, and the road surface plate of formed closely knit shaping is sling together with the steel plate of bottom and moved to it and locates, and waits until sampling; Last clean-up activities road deck is prepared test next time.
To sum up, the influence of slurry effect is proposed in first packing, stone roller property and the liquefaction that can study the frequency of operation of vibration frequency, the amplitude of paver screed and the beam that vibrates and the static pressure of screed, the speed that paves, Mixture Ratio parameter road pavement by above-mentioned test; Also can study road surface with first packing load-bearing capacity and influence factor thereof to street roller, in the time of can studying roller drum and act on the road surface that just packing is different, the relation of its linear pressure and roller depression.According to relative motion principle, adopt road level to move and way that working installations of paver does not move is come in the laboratory simulation sub-base grader course of work and road surface forming process.In addition, its control system is PLC Programmable Logic Controller 25 and the industrial computer 26 common change horizontal wall inscription control system of forming, the The whole control system perfect in shape and function, test effect is good and of many uses, can be in the operating mode that paves on the on-the-spot multiple road surface of lab simulation, especially the active ways panel that is adopted can be simulated the process of advancing of screed and the whole process that the road surface is shaped, the packing and the flatness problem of paving concrete pavement can be effectively solved, also interactional characteristic issues between compound and the paver screed can be understood well according to its test findings.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, everyly any simple modification that above embodiment did, change and equivalent structure changed, all still belong in the protection domain of technical solution of the present invention according to the technology of the present invention essence.
Claims (10)
1. highway road surface indoor simulated spreading test stand, be used with the stirring machine that the used compound of simulation paving concrete pavement is stirred, it is characterized in that: comprise frame (1), be installed in the metering flashboard (7) at frame (1) middle part from left to right successively, swash plate (8) is highly controlled in empty shop, stock guide (42) and ironing mechanism (32), be installed in frame (1) bottom and drive the active ways panel (3) of going up move left and right at track (20) by drives structure, be positioned at the pressure-bearing roller (18) on ironing mechanism (32) right side, the levelling hydraulic system (14) and the power system that are installed in the control system (5) in the switch board (6) and control by control system (5); Described power system is respectively drives structure, metering flashboard (7), swash plate (8), ironing mechanism (32) and pressure-bearing roller (18) are highly controlled in empty shop provides power; Described ironing mechanism (32) is made up of two draft arms (12), screed (10) and the angle regulating device and the eccentric activator (11) that are installed on the screed (10), the casing outside of screed (10) is equipped with the beam that vibrates (2) by control system (5) control, two draft arms (12) symmetry is installed in the both sides, front and back of frame (1) and joins with screed (10) respectively, on the frame (1) of draft arm (12) towing point top the eccentric runner (19) that towing point is applied interference is installed also, stock guide (42) is installed in screed (10) casing left side; The described levelling hydraulic system (14) that draft arm (12) is controlled is made up of motor, oil motor, levelling hydraulic jack (21), two high-speed switch valves (38), solenoid directional control valve (39) and the flow speed control valve that are serially connected in the oil circuit successively, wherein levelling hydraulic jack (21) is positioned at the towing point top of draft arm (12) and joins with draft arm (12), and levelling hydraulic jack (21) outside is equipped with levelling sensor (36); Be serially connected with the force transducer (16) of measuring active ways panel (3) moving resistance between drives structure and the active ways panel (3), pressure-bearing roller (18) outside is equipped with the displacement transducer (17) that its depression degree is measured, and levelling sensor (36), force transducer (16) join with control system (5) respectively with displacement transducer (17).
2. according to the described highway road surface indoor simulated spreading test stand of claim 1, it is characterized in that: described control system (5) is PLC Programmable Logic Controller (25), be serially connected with A/D converter (24) between itself and the levelling sensor (36), PLC Programmable Logic Controller (25) joins with two high-speed switch valves (38) and solenoid directional control valve (39) respectively by SSR solid-state relay (37).
3. according to the described highway road surface indoor simulated spreading test stand of claim 2, it is characterized in that: described PLC Programmable Logic Controller (25) is SIMATIC S7-200 series, A/D converter (24) is EM235, and described solenoid directional control valve (39) is the reversal valve of M type meta function.
4. according to claim 2 or 3 described highway road surface indoor simulated spreading test stands, it is characterized in that: also comprise the industrial computer (26) that matches with PLC Programmable Logic Controller (25) in the described control system (5), become the horizontal wall inscription control system the two common composition.
5. according to the described highway road surface indoor simulated spreading test stand of claim 4, it is characterized in that: two longitudinal gradient levelling control system that longitudinal gradient control system and right side longitudinal gradient control system were formed on the left of described change horizontal wall inscription control system was served as reasons, left side longitudinal gradient control system and right side longitudinal gradient control system are controlled the draft arm (12) of both sides before and after the frame (1) respectively and are formed by PLC Programmable Logic Controller (25) and industrial computer (26), and levelling hydraulic system (14) comprises corresponding left side and right side two cover levelling hydraulic systems;
PLC Programmable Logic Controller (25) in the longitudinal gradient control system of left side and industrial computer (26) are according to the left high-speed switch valve (29) in the corresponding control left side levelling of the detection signal of left longitudinal gradient levelling sensor (43) hydraulic system, right high-speed switch valve (30) work in left side solenoid directional control valve (28) and the right side levelling hydraulic system, left side high-speed switch valve (29), left side solenoid directional control valve (28) and right high-speed switch valve (30) are controlled left levelling oil cylinder (31) simultaneously, and left levelling oil cylinder (31) is controlled ironing mechanism (32) by the draft arm (12) that joins with it;
PLC Programmable Logic Controller (25) in the longitudinal gradient control system of right side and industrial computer (26) are according to the right high-speed switch valve (30) in the corresponding control of the detection signal right side levelling hydraulic system of right longitudinal gradient levelling sensor (33), left high-speed switch valve (29) work in right solenoid directional control valve (34) and the left side levelling hydraulic system, right high-speed switch valve (30), right solenoid directional control valve (34) and left high-speed switch valve (29) are controlled right levelling oil cylinder (35) simultaneously, and right levelling oil cylinder (35) is controlled ironing mechanism (32) by the draft arm (12) that joins with it.
6. according to claim 1,2 or 3 described highway road surface indoor simulated spreading test stands, it is characterized in that: described stirring machine is for being installed in the forced mixer (23) of frame (1) leftmost side, active ways panel (3) top, and horizontal arrangement has two shafts by the reverse constant speed rotation of motor drives in its stirred pot.
7. according to claim 1,2 or 3 described highway road surface indoor simulated spreading test stands, it is characterized in that: the quantity of the described beam that vibrates (2) is two, be installed in the both sides, front and back of screed (10) casing respectively, the tilting movement mechanism of the described beam that vibrates (2) for connecting to form by connecting rod and master arm.
8. according to claim 1,2 or 3 described highway road surface indoor simulated spreading test stands, it is characterized in that: described control system (5) is highly controlled swash plate (8), eccentric activator (11) and drives structure and is joined with metering flashboard (7), empty shop respectively.
9. according to claim 1,2 or 3 described highway road surface indoor simulated spreading test stands, it is characterized in that: described drives structure is windlass (4), and it drives movable road plate (3) by wire rope and goes up move left and right at track (20); Described active ways panel (3) is welded by shaped steel and steel plate, the cement concrete entity that its internal cavities is full of for cast, and both sides are equipped with both sides retaining swash plate (41) before and after the active ways panel (3) of screed (10) below.
10. according to claim 1,2 or 3 described highway road surface indoor simulated spreading test stands, it is characterized in that: described power system is hydraulic system (13), hydraulic system (13) comprises successively motor, oil motor and the hydraulic jack that links to each other, and its hydraulic jack comprises and is installed in screed (10) top and the lifting hydraulic jack (22) that screed (10) is driven, gives supporting roll compressing cylinder that pressure-bearing roller (18) provides pressure and drives structure, metering flashboard (7) and empty the shop are highly controlled the hydraulic jack that swash plate (8) drives; Frame (1) is provided with the guide groove of using for the oscilaltion of metering flashboard (7); Described angle regulating device is for being installed in the elevation angle adjusting screw(rod) (9) on the screed (10), and described pressure-bearing roller (18) top is equipped with load transducer (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100177063A CN101241050A (en) | 2008-03-13 | 2008-03-13 | Highway road surface indoor simulated spreading test stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100177063A CN101241050A (en) | 2008-03-13 | 2008-03-13 | Highway road surface indoor simulated spreading test stand |
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| CNA2008100177063A Pending CN101241050A (en) | 2008-03-13 | 2008-03-13 | Highway road surface indoor simulated spreading test stand |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288284A (en) * | 2011-05-15 | 2011-12-21 | 三一重工股份有限公司 | Device and method for obtaining test signal of vibrating phase difference of paver |
| CN102854129A (en) * | 2012-08-06 | 2013-01-02 | 中国民航科学技术研究院 | Verification testing experiment device and experiment method for aircraft arresting systems |
| CN103477802A (en) * | 2013-10-22 | 2014-01-01 | 青岛农业大学 | Peanut picking and harvesting bedstand |
| CN104713822A (en) * | 2015-03-31 | 2015-06-17 | 长安大学 | Asphalt pavement milling testbed |
| CN106017964A (en) * | 2016-07-12 | 2016-10-12 | 山东交通学院 | Simulation experiment device and experiment method for paver automatic leveling system |
| CN106908023A (en) * | 2017-03-01 | 2017-06-30 | 河钢股份有限公司 | A kind of continous way flat cold-rolled sheet thickness accurate measurement instrument |
| CN107270861A (en) * | 2017-05-25 | 2017-10-20 | 长安大学 | One kind vibration screed device for detecting performance and method |
| CN104831604B (en) * | 2014-02-07 | 2017-12-05 | 约瑟夫福格勒公司 | Vibrator |
| CN109540570A (en) * | 2019-01-08 | 2019-03-29 | 北京市城市管理研究院（北京市环境卫生监测中心） | The cleaning sampling platform system of sweep machine sweep performance test stand |
| CN111667732A (en) * | 2020-06-16 | 2020-09-15 | 亚龙智能装备集团股份有限公司 | Teaching and practical training equipment for paver |
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- 2008-03-13 CN CNA2008100177063A patent/CN101241050A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288284A (en) * | 2011-05-15 | 2011-12-21 | 三一重工股份有限公司 | Device and method for obtaining test signal of vibrating phase difference of paver |
| CN102854129A (en) * | 2012-08-06 | 2013-01-02 | 中国民航科学技术研究院 | Verification testing experiment device and experiment method for aircraft arresting systems |
| CN102854129B (en) * | 2012-08-06 | 2014-07-30 | 中国民航科学技术研究院 | Verification testing experiment device and experiment method for aircraft arresting systems |
| CN103477802B (en) * | 2013-10-22 | 2016-03-30 | 青岛农业大学 | Results testing stand picked up by peanut |
| CN103477802A (en) * | 2013-10-22 | 2014-01-01 | 青岛农业大学 | Peanut picking and harvesting bedstand |
| CN104831604B (en) * | 2014-02-07 | 2017-12-05 | 约瑟夫福格勒公司 | Vibrator |
| CN104713822A (en) * | 2015-03-31 | 2015-06-17 | 长安大学 | Asphalt pavement milling testbed |
| CN106017964A (en) * | 2016-07-12 | 2016-10-12 | 山东交通学院 | Simulation experiment device and experiment method for paver automatic leveling system |
| CN106908023A (en) * | 2017-03-01 | 2017-06-30 | 河钢股份有限公司 | A kind of continous way flat cold-rolled sheet thickness accurate measurement instrument |
| CN107270861A (en) * | 2017-05-25 | 2017-10-20 | 长安大学 | One kind vibration screed device for detecting performance and method |
| CN107270861B (en) * | 2017-05-25 | 2023-04-21 | 长安大学 | Device and method for detecting performance of vibration screed plate |
| CN109540570A (en) * | 2019-01-08 | 2019-03-29 | 北京市城市管理研究院（北京市环境卫生监测中心） | The cleaning sampling platform system of sweep machine sweep performance test stand |
| CN111667732A (en) * | 2020-06-16 | 2020-09-15 | 亚龙智能装备集团股份有限公司 | Teaching and practical training equipment for paver |
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