CN109406172A - A kind of soil bin test device suitable for wheels travel performance test - Google Patents
A kind of soil bin test device suitable for wheels travel performance test Download PDFInfo
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- CN109406172A CN109406172A CN201811430259.4A CN201811430259A CN109406172A CN 109406172 A CN109406172 A CN 109406172A CN 201811430259 A CN201811430259 A CN 201811430259A CN 109406172 A CN109406172 A CN 109406172A
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- 238000012360 testing method Methods 0.000 title claims abstract description 98
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention discloses a kind of soil bin test devices suitable for wheels travel performance test, including soil box system, single-wheel test macro, plough loose planarization system and control system, the single-wheel test macro is movably arranged in the soil box system to be moved back and forth along soil box system length direction, the loose planarization system setting of the plough is electrically connected in single-wheel test macro front, the control system and the loose planarization system of the soil box system, single-wheel test macro, plough.The different loaded condition of analog wheel of the present invention, the driving conditions such as controllable speed, slippage rate, meet driving performance test of the different type wheel under different soil, realizes the automation control of test process and acquire traveling performance parameter related to preservation in real time；Can have many advantages, such as that experimental condition and environmental factor are controllable, test repeatability is good, measuring accuracy is high by laboratory test research driving conditions factor, the influence of wheel correlative factor and edphic factor to trafficability.
Description
Technical field
The present invention relates to a kind of automations for integrating the technology of being driven by electricity, air pressure-loading technology and PLC control technology
Control experiment equipment more particularly to a kind of soil bin test device suitable for wheels travel performance test.
Background technique
Vehicle-terra mechanics are the subjects of a research wheel and ground interaction, pass through theoretical, emulation, test etc.
The interaction mechanism of technique study walking mechanism and soil under different soil and driving conditions, to raising vehicle multiple
The structure optimization of passability, walking mechanism on miscellaneous road surface and the rideability prediction on various road surfaces have important with evaluation
Directive significance.
Vehicle-terra mechanics are also a theory and the subject laid equal stress on of test, carry out indoor soil tank test be research wheel with
The important means of soil interaction is tested relative to field test, and indoor soil tank test has the advantage that first, interior
Soil bin test is not influenced by extraneous natural conditions, can be accurately controlled to experimental condition and test parameters；Second, soil box
Experimental rig can be tested with accurate recording during correlation performance parameters, measuring accuracy with higher；Third, due to test
The repeatability of the controllability of condition, test is good with comparability；4th, indoor soil tank test can shorten research cycle, accelerate
Research progress simultaneously saves research cost.Therefore the indoor soil tank test of the high-performance and high accuracy of exploitation analog different tests condition
Device seems increasingly important.
In mechanization of agriculture field, soil bin test equipment is mainly used for the performance test of agricultural machinery and its workpiece,
The colleges and universities such as China Agricultural University and related agricultural scientific research institutions successively establish the various soil boxs for agricultural machinery and implement performance test and try
Platform is tested, in the case where simulating field soil status condition, by the operating rate, ploughing and weeding depth and the rotary part that control agricultural machinery and implement
Revolving speed, test agricultural machinery and implement the parameters such as suffered power, torque and observe the abrasion conditions of agricultural machinery and implement during the work time, analyze quilt
The influence of the work characteristics and different operating condition of agricultural machinery and implement to agricultural machinery and implement performance is surveyed, so that the exploitation and structure for agricultural machinery and implement are excellent
Change, agricultural machinery advanced technology research etc. provide guiding theory.It is emerging with new round planetary detection upsurge at the beginning of 21 century
It rises, the condition tested on the spot due to not having real vehicle, soil bin test is that current research planetary detection wheel and ground are mutual
The only effective research technique of effect.Countries in the world establish the soil suitable for the test of planetary detection wheel travelling performance in succession
Slot pilot system, as the U.S. " plan of Mars basic technology " subsidizes the lower Massachusetts Institute of Technology's Soil Bin Testing System the established, " South Pole
Lower Ka Neiji-Mei Long university the Soil Bin Testing System established is subsidized in aerolite search plan " and BJ University of Aeronautics & Astronautics, China builds
The dedicated Soil Bin Testing System of vertical deep space exploration.It can be seen that the soil slot test stand developed at present mainly applies to agricultural machinery
With planetary detection field, different type wheel is not suitable under different soil, wheel loading environment and driving conditions
Driving performance test, for the development for promoting vehicle-terra mechanics, the soil bin test equipment of this type urgently developed.
Summary of the invention
It is an object of the invention to: in view of the above-mentioned deficiencies in the prior art, propose a kind of suitable for wheel row
The soil bin test device of performance test is sailed, which can carry out larger range load to wheel by load loading mechanism and add
It carries, with the different loaded condition of simulating wheel, by driving conditions such as driving mechanisms control wheel velocity, slippage rates, and can be quasi-
The really performance parameter of measurement wheel in motion meets driving performance test of the different type wheel under different soil,
Theoretical foundation is provided to improve passability of the vehicle on complex road surface when driving.
In order to achieve the above object, technical solution provided by the invention is as follows:
A kind of soil bin test device suitable for wheels travel performance test, including soil box system, single-wheel test macro, plough Song Ping
Whole system and control system, the single-wheel test macro are movably arranged in the soil box system along the soil box system length
Direction moves back and forth, and the loose planarization system setting of the plough is in single-wheel test macro front, the control system and the soil
Tank systems, single-wheel test macro plough loose planarization system electrical connection, for controlling the soil box system, single-wheel test macro, plough
The action parameter of loose planarization system and acquisition, storage, display and the processing of relevant test data.
Further, the soil box system includes soil box body, soil box frame, running rail, and the soil box body is opened in top
The body structure of mouth is mounted on soil box frame and is formed by cabinet space, and the running rail is arranged in parallel in along its length
Two upper lateral parts of soil box frame, the side of the soil box frame are provided with electric wiring track groove, the bottom of the soil box frame
It is arranged in parallel with several supporting beams extended to two sides, the equal support leg in the both ends of the supporting beam.
Further, the single-wheel test macro include platform trolley, wheel, drive mechanism for wheel, sliding frame mechanism,
Plus load mechanism and trolley traction mechanism, the setting that the platform trolley is slidably matched is on the running rail, the cunning
Moving frame mechanism is hinged on the platform trolley, and the drive mechanism for wheel is arranged on the movable part of the sliding frame mechanism
And output end and wheel are drivingly connected, plus load mechanism one end is hinged with platform trolley, and the other end acts on described
On the slide unit for sliding frame mechanism；The trolley traction mechanism setting drives the platform trolley on the soil box frame
It is moved back and forth along the running rail.
Further, the platform trolley includes trolley frame, track roller, and the trolley frame is welded by rectangle hollow pipe
It connects, including load Cylinder mount bracket and lifting cylinder mounting bracket, loads and be equipped between air cylinder support and trolley frame
Reinforcing rib, the inside that the track roller is mounted on trolley lower frame quadrangle are matched with the steel tank on the inside of running rail；
The platform trolley top is provided with counterweight support, the counterweight branch along wheels travel direction and central wheel axis direction
Counterweight threaded rod is installed on seat, the clump weight of changeable is provided on the counterweight threaded rod.
Further, the drive mechanism for wheel includes sequentially connected driving motor, planet-gear speed reducer, helical teeth umbrella
Tooth retarder, sliding cross coupling, torque sensor, wheel drive shaft, wheel mounting disc, the wheel mounting disc and wheel
Expansion set is equipped between drive shaft, the wheel mounting disc is equipped with multiple groups screw hole and interchangeable centralized positioning ring, the vehicle
Wheel drive shaft is connected by two spherical bearings and bearing block with the movable part of the sliding frame mechanism.
Further, the sliding frame mechanism includes hinge bracket, two vertical guide rails, two groups of sliding blocks, sliding support, drawings
Linear movement pick-up, two vertical guide rails, the hinge bracket upper end are hinged on the top of platform trolley by hinge, and described two hang down
Straight guide is set in parallel on the hinge bracket, and two groups of sliding blocks are arranged on the sliding support and vertical with two lead
Rail is slidably matched, and the bearing plate acted on by the plus load mechanism is provided on the sliding support；The bracing wire displacement
Sensor is fixed on platform trolley top, and mobile terminal is connected with sliding support.
Further, the plus load mechanism includes including air compressor machine, load cylinder, floating junction and pressure sensing
Device, the load cylinder are connected on the load Cylinder mount bracket of platform trolley by pin shaft ears seat, the load gas
The load bar of cylinder is connected with the floating junction, and the floating junction other end installs pressure sensor.
Further, the trolley traction mechanism includes the rack gear that the two sides of soil box frame are arranged in along its length, consolidates
Traction electric machine, the worm-gear speed reducer for being scheduled on platform trolley two sides and being meshed by gear with the rack gear；
Alternatively,
The trolley traction mechanism includes traction electric machine, worm-gear speed reducer, driving shaft, driven shaft, synchronous pulley, synchronization
Band, deep groove ball bearing and bearing block, synchronous belt pressing plate, the driving shaft and driven shaft pass through a pair of of deep groove ball bearing and bearing block
Be separately mounted to the both ends in soil box lengths of frame direction, two pairs of synchronous pulleys by expansion sleeve be separately mounted to driving shaft and
Driven shaft both ends, two synchronous belts cooperate along the two sides long side of soil box frame and synchronous pulley respectively；The traction electric machine passes through
Motor toggle is fixed on soil box frame side, and the traction electric machine output shaft connects the active by worm-gear speed reducer
Axis, the both ends of the driving shaft be drivingly connected by synchronous pulley, two synchronous belts and the synchronous pulley at driven shaft both ends drive from
Moving axis rotation, the synchronous belt pressing plate are fixed on platform trolley two sides and engage with the synchronous belt, the bearing of the driven shaft
Seat is connected with the adjustable sliding panel in position, and the sliding panel tensile force adjusts bolt adjusting position.
Further, the plough pine planarization system includes lifting cylinder, plow frame, scraper plate, pressing plate, pulverator plough, the pine
Soil plough includes long plough and short plough, and the through slot of vertical direction is provided on installing handle, and the long plough and short plough are alternatively arranged and pass through spiral shell
Bolt passes through through slot and is fastened on front side of plow frame, and the pressing plate and the through slot that vertical direction is also provided on scraper plate are simultaneously bolted on
On rear side of plow frame；The lifting cylinder upper end is hinged in the lifting cylinder mounting bracket of platform trolley front end, and lower end is hinged
In the plow frame top middle portion, the plow frame two sides and platform trolley front lower ends are movably hinged.
Further, the control system includes PC computer, control cabinet, is mounted in the control cabinet and outside cabinet
Control circuit and data acquisition module, the control circuit include that ON-OFF control circuit, wheel drive control circuit and trolley are led
Draw control circuit, the ON-OFF control circuit includes to be used for detection platform the trolley close switch of four trolleys of signal, use in place
In detection cylinder in place signal two cylinders close to switch, be mounted on station and platform trolley two emergency stop switch, setting
Two safety at soil box body both ends are controlled close to switch, two emergency stop switch and wheel drive control circuit, trolley traction
The input terminal of circuit processed is connected, and cuts off circuit in a manner of hardware power-off；The safety is close to switch, for flat when detecting
Signal is issued when platform trolley reaches soil box body both ends extreme position stalls motor；The motor of the drive mechanism for wheel passes through vehicle
Servo-driver, driving motor contactor, driving motor protective switch in wheel drive control circuit are connected with PLC；Described
The motor of vehicle traction mechanism is opened by the frequency converter in trolley traction control circuit, traction electric machine contactor, traction electric machine protection
Pass is connected with PLC；The output end of the data collecting card of the data acquisition module is connect with the input interface of the PC computer,
The input terminal of data collecting card is connect with the signal output of each sensor, and sensor signal is passed to by data acquisition module in real time
PC machine realizes acquisition, storage, display and the processing of test data.
According to the above technical scheme it is found that compared with prior art, the invention has the following beneficial effects:
The present invention can control the revolving speed of wheel by drive mechanism for wheel, can control the water of platform trolley by trolley traction mechanism
Flat speed, and then slippage rate control when may be implemented wheels travel；Wheel can be carried out by plus load mechanism different big
Side crops industry load, with the different loaded condition of simulating wheel；By changing the test soil class held in soil box or changing same
The property of kind test soil, the different soil testing condition of analog；Wheel mounting disc is suitable for replacement installation different size vehicle
Wheel, the consistency of edaphic condition, control system are able to achieve test process when the loose planarization system of plough can guarantee each repetitive test
In automation control, can be realized the real-time acquisition of related traveling performance parameter, storage, display during the test and locate
Reason, therefore the present invention is able to satisfy driving performance test of different wheel under the conditions of different tests, can be gone by laboratory test research
Sail condition element (load, travel speed, slippage rate etc.), wheel correlative factor (tyre type, tire pressure, tread contour etc.) and soil
Influence of the earth factor (soil property, soil moisture content etc.) to trafficability.Using apparatus of the present invention have experimental condition and
The advantages that environmental factor is controllable, test repeatability is good, measuring accuracy is high.
Detailed description of the invention
Schematic figures are conducive to image and specifically understand the present invention, and attached drawing is as follows:
Fig. 1 is the schematic perspective view of the soil bin test device of the embodiment of the present invention.
Fig. 2 is the main view of the soil bin test device of the embodiment of the present invention.
Fig. 3 is the left view of the soil bin test device of the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of the soil box system of the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the soil box frame of the embodiment of the present invention.
Fig. 6 is the structural schematic diagram of the platform trolley of the embodiment of the present invention.
Fig. 7 is the structural schematic diagram of the drive mechanism for wheel of the embodiment of the present invention.
Fig. 8 is the structural schematic diagram of the sliding frame mechanism of the embodiment of the present invention.
Fig. 9 is the structural schematic diagram of the plus load mechanism of the embodiment of the present invention.
Figure 10 is the structural schematic diagram of the trolley traction mechanism of the embodiment of the present invention.
Figure 11 is the structural schematic diagram of the loose planarization system of plough of the embodiment of the present invention.
Figure 12 is the member control circuit figure of the embodiment of the present invention.
Figure 13 is the main control panel schematic diagram of the embodiment of the present invention.
Figure 14 is the process schematic that loosens the soil when being tested using the present invention.
Figure 15 is to utilize wheel for testing process schematic when present invention test.
In figure: 1- soil box body, 2- soil box frame, 3- running rail, 4- test soil, 5- end frame, 6- central frame,
7- stringer, 8- crossbeam, 9- column, 10- reinforcing rod, 11- supporting beam, 12- support leg, 13- electric wiring track groove, 14- trolley
Frame, 15- track roller, 16- synchronous belt pressing plate, 17- load Cylinder mount bracket, 18- lifting cylinder mounting bracket, and 19- adds
Strengthening tendons, 20- planet-gear speed reducer, 21- helical teeth umbrella tooth retarder, 22 sliding cross couplings, 23- spherical bearing and UCAP type
Narrow vertical bearing seat, 24- wheel drive shaft, 25- wheel mounting disc, 26- expansion set, 27- hinge bracket, 28- vertical guide rail, 29-
Sliding block, 30- sliding support, 31- floating junction, 32- pin shaft ears seat, 33- bearing plate, 34- worm-gear speed reducer, 35- master
Moving axis, 36- driven shaft, 37- synchronous pulley, 38- synchronous belt, 39- deep groove ball bearing and bearing block, 40- motor toggle, 41-
Sliding panel, 42- plow frame, 43- scraper plate, 44- pressing plate, 45- pulverator plough, C1- load cylinder, C2- lifting cylinder, M1- driving motor,
M2- traction electric machine, L1- torque sensor, L2- pressure sensor, L3- stay wire displacement sensor, S1, S2, S3, S4- trolley connect
Nearly switch, S5, S6- cylinder are close to switch, and S7, S8- are safely close to switch, and S9, S10- emergency stop switch, P1, P2, P3, P4- are opposite
In the trolley position of the close switch S1 ~ S4 of trolley.
Specific embodiment
Technical solution of the present invention and technical purpose are illustrated to become apparent from, below by a specific embodiment and is combined attached
Figure is described in further details.
A kind of soil bin test device suitable for wheels travel performance test provided in this embodiment is used to carry out certain to get over
The driving performance of wild wheel is tested, overall structure signal as shown in Figure 1, Fig. 2 and Fig. 3 are respectively its main view and left view,
Including soil box system, single-wheel test macro, plough loose planarization system and control system.Soil box system is mainly by soil box body 1, soil box frame
Frame 2 and two running rails 3 form, as shown in Figure 4.Soil box body 1 is that the top being welded by the steel plate of 16mm thickness is opened
The body structure of mouth is equipped with test soil 4 having a size of long 4m, width 0.65m, high 0.4m inside soil box body；Soil box body 1 is installed
It is formed by cabinet space in soil box frame 2, the soil box frame 2 is led to by two section end frames 5 and a section central frame 6
It crosses bolt to be stitched together, as shown in Figure 5.End frame 5 and central frame 6 are by 50 × 50 × 3mm and 100 × 50 × 3mm
Hollow square tubes soldering form, the upper end that two section end frames 5 are made of four crossbeams, 8, five stringers 7, ten root posts 9
The frame structure in face and one side opening, central frame 6 form upper end by two crossbeams, 8, five stringers 7 and six roots of sensation column 9
The frame structure in face and two opposing side openings.Since the load that wheel applies during test is larger, end frame 5 is in
Between frame 6 column 9 and base cross members 8 between be provided with reinforcing rod 10, and crossbeam 8 lower section in soil box frame 2 bottom every is all set
It is equipped with supporting beam 11, crossbeam 8 is connected with supporting beam 11 by four support legs 12, and support leg 12 fixes on the ground, thus will
Test load is equably passed to floor ground.2 side of soil box frame is provided with electric wiring track groove 13, the soil box frame 2
Two channel steels installed in parallel are provided on the stringer 7 on top, the running rail 3 moved back and forth as platform trolley.
The single-wheel test macro includes platform trolley, cross-country vehicle wheel, drive mechanism for wheel, sliding frame mechanism, outer load
Lotus mechanism and trolley traction mechanism.
Fig. 6 is the structural schematic diagram of platform trolley, and the platform trolley includes trolley frame 14, track roller 15.Trolley
Frame 14 is welded by the rectangle hollow pipe of 100 × 50 × 3mm, and load Cylinder mount bracket 17 and lifting are provided with
Cylinder mount bracket 18 loads to be equipped between air cylinder support and trolley frame and reinforce for fixing lifting cylinder and load cylinder
Muscle 19；Four steel track rollers 15 are mounted on the inside of 14 lower part quadrangle of trolley frame, in track roller 15 and running rail 3
The steel tank of side matches.
Fig. 7 is the structural schematic diagram of drive mechanism for wheel, and drive mechanism for wheel is for driving wheel with certain angular speed
Traveling, mainly by driving motor M1, planet-gear speed reducer 20, helical teeth umbrella tooth retarder 21, sliding cross coupling 22, torque
Sensor L1, wheel drive shaft 24, wheel mounting disc 25, spherical bearing and the narrow vertical bearing seat 23 of UCAP type form.Driving electricity
The power and torque of machine M1 is by 21 deceleration torque increase of concatenated planet-gear speed reducer 20 and helical teeth umbrella tooth retarder, using ten
Word oldham coupling 22 passes to wheel drive shaft 24, and then drives cross-country vehicle wheel rotation.Cross-country vehicle wheel passes through wheel mounting disc
25 are mounted on wheel drive shaft 24, and expansion set 26 is equipped between wheel mounting disc 25 and wheel drive shaft 24, and expansion set 26 has same
Heart degree is high, connects the advantages that robust, overload protection.Wheel mounting disc 25 is equipped with multiple groups screw hole and interchangeable center
Positioning ring is suitable for the wheel rim installation of different size wheel.It is narrow by a pair of of spherical bearing and UCAP type on wheel drive shaft 24
Vertical bearing seat 23 is connected with sliding support 30, and torque sensor L1 is equipped on wheel drive shaft 24, for measuring vehicle
The driving torque of wheel in the process of moving.Driving motor M1 selects the hundred million rich board servo motors of model 130STM10025, volume
Determining power is 2600W, and output revolving speed is 0-2500r/min, and the wheel drive shaft range of speeds after retarder slows down is 0-
416r/min。
Fig. 8 is the structural schematic diagram for sliding frame mechanism, and sliding frame mechanism can guarantee that wheel has freedom in the vertical direction
Degree, can simulating wheel sink, mainly include hinge bracket 27, vertical guide rail 28, sliding block 29 and sliding support 30.Hinge branch
Frame 27 is hinged on the top of platform trolley by hinge, is able to drive drive mechanism for wheel and the rotation of tested wheel around hinge；Hinge
Two vertical guide rails installed in parallel 28 are fixed on chain bracket, there are four sliding block 29, two groups of sliding blocks for fixation on sliding support 30
29 respectively with two vertical guide rails 28 with merging and can move up and down along vertical guide rail 28, therefore wheel can be along vertical guide rail 28 vertical
It moves reciprocatingly on direction.Stay wire displacement sensor L3 is fixed on platform trolley top, and mobile terminal is connected with sliding support 30,
Sliding support 30 can be driven to move in the vertical direction when wheels travel, therefore stay wire displacement sensor L3 can be measured wheel is expert at
Wheel rim sinkage during sailing.
Fig. 9 is the structural schematic diagram of plus load mechanism, and plus load mechanism is used to carry out vertical load load to wheel,
It mainly include air compressor machine, load cylinder C1, floating junction 31 and pressure for the loaded condition in simulating wheel driving process
Sensor L2.Load cylinder C1 is connected on the load Cylinder mount bracket 17 of platform trolley by pin shaft ears seat 32, is loaded
Cylinder C1 has the freedom degree around pin shaft axis oscillating.The load bar of load cylinder C1 is connected with floating junction 31, floating junction
Pressure sensor L2 is installed under 31.Floating junction 31 has the characteristics that reduction is eccentric, compression strength is high, and pressure sensor L2 is used
In measurement wheel vertical load suffered in the process of moving.The position of wheel loading mechanism is to be arranged on sliding support 30
Bearing plate 33, load passes to drive mechanism for wheel by sliding support 30, and then passes to wheel, and the size of loaded load can be with
It is adjusted by cylinder solenoid valve.The cylinder of load cylinder C1 selection model DN160, piston diameter 16cm, effectively
Area is 201cm2, load loading range is 0kgf-1400kgf, and cylinder solenoid valve is a 3 position-5 way solenoid valve.
Figure 10 is the structural schematic diagram of trolley traction mechanism, and trolley traction mechanism is for drawing platform trolley in running rail
It is middle move back and forth simultaneously be able to achieve speed control, mainly include traction electric machine M2, worm-gear speed reducer 34, driving shaft 35, from
Moving axis 36, synchronous pulley 37, synchronous belt 38, deep groove ball bearing and bearing block 39, synchronous belt pressing plate 16.Traction electric machine M2 passes through electricity
Machine toggle 40 is fixed on soil box frame 2, and the power and torque of traction electric machine M2 is slowed down by worm-gear speed reducer 34 to be increased
Driving shaft 35 is passed to after torsion, then drives driven shaft 36 to rotate by V belt translation, and four welding settings of synchronous belt pressing plate 16 exist
Platform trolley two sides, the synchronous belt pressing plate 16 due to being located at platform trolley two sides is engaged with synchronous belt 38, to work as synchronous belt 38
Platform trolley is drawn when movement to move back and forth along running rail 3.The driving shaft 35 and driven shaft 36 pass through a pair of of deep-groove ball axis
It holds and is separately mounted on the two sides short side of soil box frame 2 with bearing block 39, two pairs of synchronous pulleys 37 are installed respectively by expansion sleeve
At 37 both ends of driving shaft 36 and driven shaft, two synchronous belts 38 are matched along the two sides long side of soil box frame 2 with synchronous pulley 37 respectively
It closes.The synchronous belt 38 has tensioning design, and the bearing block of driven shaft 36 is connected with sliding panel 41, and tensile force adjusting bolt can be with
The position of sliding panel 41 is controlled, and then controls the position of bearing block, Gu tension adjusting adjusts the adjustable synchronous belt 38 of bolt
Elasticity, when the bolts are tightened, synchronous belt 38 can become to be tensioned.
In another feasible embodiment, the trolley traction mechanism includes that soil box frame is arranged in along its length
The rack gear of two sides, traction electric machine M2, the worm gear for being fixed on platform trolley two sides and being meshed by gear with the rack gear
Worm decelerating machine 34, the traction electric machine M2 driving worm-gear speed reducer 34 and gear, when the gear rotates, described in driving
Platform trolley is moved back and forth along running rail 3.
Figure 11 is the structural schematic diagram for ploughing loose planarization system, ploughs loose planarization system and is used for before each testing experiment to soil
Loosen the soil and smooth-riding surface, make to keep edaphic condition consistent when each repetitive test, it is ensured that test result data it is accurate
Property, it mainly include lifting cylinder C2, plow frame 42, scraper plate 43, pressing plate 44, pulverator plough 45.Pulverator plough 45 has long plough and short plough,
It is provided with the through slot of vertical direction on installing handle, long plough and short plough are alternatively arranged to be passed through before through slot is fastened on plow frame 42 by bolt
The through slot of vertical direction is also provided on side, pressing plate 44 and scraper plate 43 and is bolted on 42 rear side of plow frame, therefore can be passed through
Adjust the upright position of bolt control pulverator plough 45, scraper plate 43 and pressing plate 44, and then the depth loosened the soil needed for controlling.Lifting cylinder
The upper end C2 is hinged in the lifting cylinder mounting bracket 18 of platform trolley front end, and lower end is hinged on 42 top middle portion of plow frame, lifting
Cylinder C2 is fallen when loosening the soil process gos deep into pulverator plough 45 in soil, and pressure maintaining carries out process of loosening the soil, after process of loosening the soil
Pulverator plough 45 is promoted again.42 two sides of plow frame are connect using double nut with platform trolley front lower ends, and can be turned around connection bolt
It is dynamic, therefore pulverator plough 45 can rise or fall.
It is provided with counterweight support along wheels travel direction and central wheel axis direction on platform trolley top, is matched
Counterweight threaded rod is installed on weight support, clump weight is installed, changeable clump weight is to realize that counterweight is adjusted on counterweight threaded rod.
Counterweight is set with balance platform trolley, it is more stable to move it process.
Control system can be realized the automation control of experimental test process, can control the revolving speed and platform trolley of wheel
Horizontal velocity to realize the control of slippage rate, can control the size of wheel loaded load, and being able to achieve in test process can
Real-time acquisition, storage, display and the processing for realizing related traveling performance parameter, can also ensure the safety of test process.The control
System processed includes PC computer, control cabinet, is mounted in control cabinet and the control circuit and data acquisition module outside cabinet.Such as Figure 12
For member control circuit wiring diagram, control circuit includes ON-OFF control circuit, wheel drive control circuit and trolley traction control
Circuit.ON-OFF control circuit include for detection platform trolley in place signal trolley close to switch S1 ~ S4, for detecting cylinder
The cylinder of signal approaches switch S5 ~ S6, the emergency stop switch S9 ~ S10 being mounted on station and platform trolley, emergency stop switch in place
It is connected with the input terminal of wheel drive control circuit, trolley traction control circuit, is to cut off circuit in a manner of hardware power-off,
In case of emergency, one of emergency stop switch is pressed, two motors can stop operating and interrupt all gas circuits, to ensure peace
Entirely.In addition safety is provided with close to switch S7 ~ S8 at soil box both ends, when detecting platform trolley arrival soil box both ends extreme position
When, safety switch, which issues signal, stalls motor, to prevent from going out running rail during platform trolley travelling.Wheel driving control
Driving motor M1 is connected by servo-driver, driving motor contactor, driving motor protective switch with PLC in circuit processed.Platform
Traction electric machine M2 passes through frequency converter, traction electric machine contactor, traction electric machine protective switch and PLC phase in vehicle traction control circuit
Even.The output end of the data collecting card of data acquisition module is connect with the input interface of PC computer, the input of data collecting card
End is connect with the signal output of torque sensor L1, stay wire displacement sensor L3, pressure sensor L2 etc., data acquisition module
Sensor signal is passed to PC machine in real time, to realize acquisition, storage, display and the processing of test data.
Human-machine Control panel is developed using InTouch software as developing instrument using PC computer as platform, operation
Personnel can pass through PC computer operating soil bin test equipment.Control panel include main control panel, parameter setting panel, in real time
Trend display panel and report generation panel.Main control panel is as shown in figure 13, includes state-detection area and operating space, state inspection
The schematic diagram that area shows soil bin test device is surveyed, device status can be clearly observed, can display real-time each parameter
Actual value, the case where allowing operator intuitively can rapidly monitor experiment.Operation is divided into manual operation and is automatically brought into operation, manually
Operation by hand push button realization the rising or falling of wheel, forward or reverse and the rising or falling of plow frame, platform trolley
Forward or backward；Selection is automatically brought into operation the automatic running of the process of loosening the soil that can be achieved, test process and trolley regression process.Parameter
Panel, which is arranged, can carry out setting for test parameter (diameter of tyres, tire linear velocity, platform speed, loaded load etc.) and system parameter
It sets.Driving performance parameter such as wheel weight, wheel torque, wheel sinkage amount in real-time tendency display panel Observable test process
Deng real-time tendency.Report generation panel may be selected to select the time span for generating report, sampling interval, by test data with table
Form store the processing to facilitate test data.
It mainly include the process of loosening the soil and wheel for testing process when selection is automatically brought into operation and is tested.If Figure 14 is to loosen the soil
The schematic diagram of journey, platform trolley are moved to position P1 from initial position P2 first, and lifting cylinder C2 starting will after the P1 of in-position
Plow frame is fallen, and pulverator plough is deeply tested in soil；Then traction electric machine M2 starts running, what platform trolley was set by position P1
Speed is travelled to position P3, and in-position P3 rear haulage motor shuts down, and lifting cylinder C2 promotes plow frame S6 in place, is finally led
Drawing motor M2 operating makes platform trolley return to initial position P2, completes process of loosening the soil.Such as the signal that Figure 15 is wheel for testing process
Figure, platform trolley are in initial position P2, and operator starts automatic test journey after inputting related test parameters in a computer
Sequence, load cylinder C1 starts to be loaded to wheel, and after being loaded into predetermined load, driving motor M1 and traction electric machine M2 start
Operating, wheel and platform trolley are travelled from position P2 to position P4 with the speed of setting respectively, and each sensor acquires phase in the process
It closes parameter and is passed to PC computer stored in real time and shows.After the P4 of trolley in-position, driving motor M1 and traction electric machine M2 stop
It only operates, load cylinder C1 unloads and lift wheel S5 in place, and last traction electric machine M2 operating makes platform trolley return to initial bit
P2 is set, wheel for testing process is completed.
The above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to the present invention
Embodiment restriction.To those of ordinary skill in the art, it can also make on the basis of the above description other
Various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all in spirit of the invention
With any modifications, equivalent replacements, and improvements made within principle etc., the protection scope of the claims in the present invention should be included in
Within.
Claims (10)
1. a kind of soil bin test device suitable for wheels travel performance test, it is characterised in that: surveyed including soil box system, single-wheel
The loose planarization system of test system, plough and control system, the single-wheel test macro are movably arranged in the soil box system along institute
The reciprocating movement of soil box system length direction is stated, the loose planarization system of the plough is arranged in single-wheel test macro front, the control
System processed and the soil box system, single-wheel test macro are ploughed loose planarization system and are electrically connected, for control the soil box system,
Single-wheel test macro ploughs the loose action parameter of planarization system and acquisition, storage, display and the processing of relevant test data.
2. the soil bin test device according to claim 1 suitable for wheels travel performance test, it is characterised in that: described
Soil box system includes soil box body, soil box frame, running rail, and the soil box body is mounted on soil box in open-topped body structure
Frame is formed by cabinet space, and the running rail is arranged in parallel in two upper lateral parts of soil box frame, institute along its length
The side for stating soil box frame is provided with electric wiring track groove, and the bottom of the soil box frame is arranged in parallel with several prolongs to two sides
The supporting beam stretched, the equal support leg in the both ends of the supporting beam.
3. the soil bin test device according to claim 2 suitable for wheels travel performance test, it is characterised in that: described
Single-wheel test macro include that platform trolley, wheel, drive mechanism for wheel, sliding frame mechanism, plus load mechanism and trolley are led
Draw mechanism, on the running rail, the sliding frame mechanism is hinged on described flat for the setting that the platform trolley is slidably matched
On platform trolley, the drive mechanism for wheel is arranged on the movable part of the sliding frame mechanism and output end and wheel driving connect
It connects, plus load mechanism one end is hinged with platform trolley, and the other end acts on the slide unit of the sliding frame mechanism
On；The trolley traction mechanism setting drives the platform trolley back and forth to move along the running rail on the soil box frame
It is dynamic.
4. the soil bin test device according to claim 3 suitable for wheels travel performance test, it is characterised in that: described
Platform trolley includes trolley frame, track roller, and the trolley frame is welded by rectangle hollow pipe, including load cylinder peace
Bracket and lifting cylinder mounting bracket are filled, loads and is equipped with reinforcing rib, the track roller between air cylinder support and trolley frame
The inside for being mounted on trolley lower frame quadrangle is matched with the steel tank on the inside of running rail；The platform trolley top is along vehicle
Wheel driving direction and central wheel axis direction are provided with counterweight support, are equipped with counterweight threaded rod on the counterweight support,
The clump weight of changeable is provided on the counterweight threaded rod.
5. the soil bin test device according to claim 3 suitable for wheels travel performance test, it is characterised in that: described
Drive mechanism for wheel includes sequentially connected driving motor, planet-gear speed reducer, helical teeth umbrella tooth retarder, crosshead shoe shaft coupling
Device, torque sensor, wheel drive shaft, wheel mounting disc are equipped with expansion set, institute between the wheel mounting disc and wheel drive shaft
Wheel mounting disc is stated equipped with multiple groups screw hole and interchangeable centralized positioning ring, the wheel drive shaft passes through two spherical bearings
It is connected with bearing block with the movable part of the sliding frame mechanism.
6. the soil bin test device according to claim 3 suitable for wheels travel performance test, it is characterised in that: described
Sliding frame mechanism include hinge bracket, two vertical guide rails, two groups of sliding blocks, sliding support, stay wire displacement sensors, two vertically lead
Rail, the hinge bracket upper end are hinged on the top of platform trolley by hinge, and two vertical guide rail is set in parallel in institute
It states on hinge bracket, two groups of sliding blocks are arranged on the sliding support and are slidably matched with two vertical guide rails, the sliding
The bearing plate acted on by the plus load mechanism is provided on bracket；The stay wire displacement sensor is fixed on platform trolley
Top, mobile terminal are connected with sliding support.
7. the soil bin test device according to claim 3 suitable for wheels travel performance test, it is characterised in that: described
Plus load mechanism includes passing through pin including air compressor machine, load cylinder, floating junction and pressure sensor, the load cylinder
Axis ears seat is connected on the load Cylinder mount bracket of platform trolley, the load bar and the floating junction of the load cylinder
It is connected, the floating junction other end installs pressure sensor.
8. the soil bin test device according to claim 3 suitable for wheels travel performance test, it is characterised in that: described
Trolley traction mechanism include the rack gear that the two sides of soil box frame are set along its length, be fixed on platform trolley two sides and
Traction electric machine, the worm-gear speed reducer being meshed by gear with the rack gear；
Alternatively,
The trolley traction mechanism includes traction electric machine, worm-gear speed reducer, driving shaft, driven shaft, synchronous pulley, synchronization
Band, deep groove ball bearing and bearing block, synchronous belt pressing plate, the driving shaft and driven shaft pass through a pair of of deep groove ball bearing and bearing block
Be separately mounted to the both ends in soil box lengths of frame direction, two pairs of synchronous pulleys by expansion sleeve be separately mounted to driving shaft and
Driven shaft both ends, two synchronous belts cooperate along the two sides long side of soil box frame and synchronous pulley respectively；The traction electric machine passes through
Motor toggle is fixed on soil box frame side, and the traction electric machine output shaft connects the active by worm-gear speed reducer
Axis, the both ends of the driving shaft be drivingly connected by synchronous pulley, two synchronous belts and the synchronous pulley at driven shaft both ends drive from
Moving axis rotation, the synchronous belt pressing plate are fixed on platform trolley two sides and engage with the synchronous belt, the bearing of the driven shaft
Seat is connected with the adjustable sliding panel in position, and the sliding panel tensile force adjusts bolt adjusting position.
9. the soil bin test device according to claim 3 suitable for wheels travel performance test, it is characterised in that: described
Plough pine planarization system include lifting cylinder, plow frame, scraper plate, pressing plate, pulverator plough, the pulverator plough includes long plough and short plough,
It is provided with the through slot of vertical direction on installing handle, the long plough and short plough are alternatively arranged to be passed through before through slot is fastened on plow frame by bolt
The through slot of vertical direction is also provided on side, the pressing plate and scraper plate and is bolted on rear side of plow frame；The lifting cylinder
Upper end is hinged in the lifting cylinder mounting bracket of platform trolley front end, and lower end is hinged on the plow frame top middle portion, institute
It states plow frame two sides and platform trolley front lower ends is movably hinged.
10. the soil bin test device according to claim 3 suitable for wheels travel performance test, it is characterised in that: institute
The control system stated includes PC computer, control cabinet, is mounted in the control cabinet and the control circuit and data acquisition outside cabinet
Module, the control circuit include ON-OFF control circuit, wheel drive control circuit and trolley traction control circuit, the switch
Control circuit include for detection platform trolley signal in place four trolleys close to switch, for detecting cylinder signal in place
The close switch of two cylinders, is arranged in the two of soil box body both ends at two emergency stop switch being mounted on station and platform trolley
Safety is connected close to switch, two emergency stop switch with the input terminal of wheel drive control circuit, trolley traction control circuit, with
The mode of hardware power-off cuts off circuit；The safety detects that platform trolley reaches soil box body both ends close to switch, for working as
Signal is issued when extreme position stalls motor；The motor of the drive mechanism for wheel passes through watching in wheel drive control circuit
Driver, driving motor contactor, driving motor protective switch is taken to be connected with PLC；The motor of the trolley traction mechanism passes through
Frequency converter, traction electric machine contactor, traction electric machine protective switch in trolley traction control circuit are connected with PLC；The data
The output end of the data collecting card of acquisition module is connect with the input interface of the PC computer, the input terminal of data collecting card with
The signal output of each sensor connects, and sensor signal is passed to PC machine by data acquisition module in real time, realizes test data
Acquisition, storage, display and processing.
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| CN201811430259.4A CN109406172A (en) | 2018-11-28 | 2018-11-28 | A kind of soil bin test device suitable for wheels travel performance test |
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| CN201811430259.4A CN109406172A (en) | 2018-11-28 | 2018-11-28 | A kind of soil bin test device suitable for wheels travel performance test |
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| CN115266151B (en) * | 2022-09-28 | 2023-02-07 | 山东孟子居生态农业股份有限公司 | Agricultural machinery wheel test bench |
| CN116519340A (en) * | 2023-04-21 | 2023-08-01 | 石家庄铁道大学 | Train operation performance test bed under aerodynamic force effect |
| CN116519340B (en) * | 2023-04-21 | 2023-12-12 | 石家庄铁道大学 | Train operation performance test bed under aerodynamic force effect |
| CN116754264A (en) * | 2023-07-06 | 2023-09-15 | 盐城工学院 | Tire-soil interaction test platform |
| CN117191425A (en) * | 2023-11-02 | 2023-12-08 | 湖南大学 | Vehicle moving load loading device suitable for indoor model test |
| CN117405419A (en) * | 2023-12-14 | 2024-01-16 | 中国农业大学 | Fixed tire test bench |
| CN117405419B (en) * | 2023-12-14 | 2024-04-05 | 中国农业大学 | Fixed tire test bench |
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