CN105388031A - Soil bin test trolley - Google Patents
Soil bin test trolley Download PDFInfo
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- CN105388031A CN105388031A CN201510895123.0A CN201510895123A CN105388031A CN 105388031 A CN105388031 A CN 105388031A CN 201510895123 A CN201510895123 A CN 201510895123A CN 105388031 A CN105388031 A CN 105388031A
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Abstract
The invention relates to a soil bin test trolley. The soil bin test trolley includes a soil bin system, a test tractor and a double-wheel test device; the front end of the test tractor is provided with the double-wheel test device; and the test tractor and the double-wheel test device perform reciprocating motion along the soil bin system. With the soil bin test trolley of the invention adopted, the stress-strain of a tire and mechanical parameters of agricultural implements such as a plough and a rotary cultivator under different experimental factors can be tested, and the problem of influence of the vibration of traction equipment on measurement results existing in an existing test system can be solved. The soil bin test trolley has the advantages of controllability of test conditions and environmental factors, convenient measurement of test data and parameters, high measurement precision, high test repeatability, high driving ability, accurate and reliable control, flexible and convenient test and coherent data acquisition.
Description
Technical field
The present invention relates to a kind of Automated condtrol testing equipment integrating electric drive technology, hydraulic transmission technology, PLC control technology and LabVIEW virtual instrument technique, especially a kind of soil bin test chassis.
Background technology
At present, in Agricultural Machinery Design process, the shortage of good test condition innovates the one of the main reasons of being obstructed, uncontrollable due to farm environment, the vibration of driving arrangement and farming season the factor such as weather, the development of novel agricultural machinery is very slow.Vehicle-terra mechanics is a test and theoretical subject of laying equal stress on, and by the research of tire by aspects such as property, road surface friendly, analyzes tire and the ground coupling mechanism of action.By the impact of natural conditions and measuring accuracy, the test link in this field is still comparatively weak, and the vibration of tractor and the uncertainty of soil parameters also govern the development of this subject.
According to the applicant understood, soil box is the indispensable experimental facilities of soil-machine system research, and existing soil box is normally used for studying agricultural machinery performance.Since the thirties in last century, in order to improve the test accuracy of agricultural machinery, many countries establish Soil Bin Testing System in succession.Usually, Soil Bin Testing System is under the simulation water percentage of field soil and the condition of consolidation, control the rotating speed of the haulage speed of agricultural machinery and implement, tilling depth and rotary part, the parameter such as pulling force, rotary torque that test agricultural machinery and implement are suffered in advancing, thus analyze pulling force, moment of torsion and haulage speed, tilling depth, corresponding relation between rotating speed, for the exploitation of agricultural machinery and implement and research provide design considerations.
In recent years, soil slot test stand is used in agricultural machinery and implement performance test gradually, and introduction soil box carries out simulation test has become the very important research means of vehicle-terra mechanics.In existing soil bin test system, draw-off equipment vibration is comparatively large on test findings impact, and the vibration therefore reducing draw-off equipment becomes the key factor of restriction vehicle-terra mechanics development.
Summary of the invention
The object of the invention is to: the deficiency existed for above-mentioned prior art, a kind of soil bin test chassis is proposed, by providing the driving force of stable and continuous, travel speed and take-off output, reduce due to the large problem of the caused test findings deviation of draw-off equipment vibration, accurately control the ruuning situation of tractor, power output shaft, hydraulic pump and two-wheel test unit simultaneously, and test findings is shown in real time by virtual instrument and stores.
In order to reach above object, technical scheme of the present invention is as follows: a kind of soil bin test chassis, comprises soil box system, test tractor and two-wheel test unit; The front end of described test tractor is provided with two-wheel test unit, and the two moves reciprocatingly along soil box system;
The running rail that described soil box system comprises soil box body and arranges along the both sides of soil box body;
Described test tractor is made up of mechanical hook-up, hydraulic means, control device and proving installation; Described mechanical hook-up comprises vehicle frame, and the below of described vehicle frame is installed with gear train, and described gear train is connected with travel mechanism by coupling shaft, and the rear of described vehicle frame is installed with the rear working mechanism for mounting agricultural machinery and implement and experimental subjects;
Described two-wheel test unit is connected with experiment tractor by the vertical loading mechanism being arranged at vehicle frame front end, comprise the drive motor be arranged on vehicle frame, the output terminal of described drive motor is meshed with gear drive by tape handler, described gear drive is socketed on transmission shaft, and described transmission shaft is fixedly connected with vehicle frame by rolling bearing units; The both sides of described transmission shaft are installed with testing tire; The inner side of described each testing tire is installed with the balance wheel mechanism of a Foldable respectively
The structure of the further refinement of the present invention is as follows:
In technique scheme, described soil box body is that concreting forms, the upper surface flush of its upper surface and running rail; The long limit, side of described soil box body is placed with water inlet pipe; Longitudinally equidistantly be arranged at intervals with Soil Moisture Sensor in described soil box body, in described soil box body, be longitudinally evenly equipped with at least two draining floral tubes.Described water inlet pipe is equidistantly arranged at intervals with shower nozzle along same generatrix direction.The first-class intervals of described each draining floral tube has water seepage hole, and described water seepage hole is uniform along the xsect circumference of draining floral tube.
In technique scheme, the first truss is transversely furnished with in described vehicle frame comprises, first truss comprises two crossbeams and four longerons that be arranged in parallel, described crossbeam and longeron head and the tail connect to form closed rectangular frame, the corner of described framework is provided with column straight down, first truss is connected with the second truss by column, and be equidistantly installed with reinforcement along longeron direction between described first truss and the second truss, the upper surface of described vehicle frame is installed with steel plate.
In technique scheme, described gear train comprises motor, the output terminal of described motor is connected with coupling shaft by tape handler and gear drive, the both sides of described coupling shaft are connected with the front portion of travel mechanism respectively by left and right front axle, described coupling shaft is socketed with chain-drive mechanism, described left and right front axle is connected with left and right rear axle by chain-drive mechanism, and described left and right rear axle is connected with the rear portion of travel mechanism;
Described travel mechanism comprises the solid tyre arranged along vehicle frame corner, and the inner side of described each solid tyre is provided with adjustable for height angle sheave, and described angle sheave matches with the channel-section steel inside running rail;
Described arrestment mechanism is triple brake system, comprises mechanical braking, electric braking, travel switch braking and auxiliary braking; Described mechanical braking is be installed on support formula magnetic powder brake coupling shaft deviating from gear drive side; Described electric braking adopts the three-phase alternating-current supply of negative-phase sequence, makes motor produce reversing braking power; Described travel switch brake system controls by being installed on the traveling-position of the travel switch on vehicle frame control box to tractor; Described complemental brake system is the brute spring being fixedly installed in soil box tail track, and described spring inner is provided with spring core, parallel with running rail, vertical with platform travel direction.
In technique scheme, described control device comprises the switch board be arranged on front side of hydraulic means, comprises cabinet, is arranged on the host computer in cabinet, display device, input-output unit, control circuit and is arranged on the control panel of cabinet outside surface; Described control panel is divided into test tractor control area, hydrostatic control region, power output shaft control area and two-wheel test unit control area four part, and every part is equipped with one group of pushbutton switch and instrument display screen; Control circuit comprises tractor control circuit in parallel, power output shaft control circuit, hydraulic pump control circuit and two-wheel test unit control circuit; Described tractor control circuit comprises tractor drive motor, and described tractor drive motor is connected to the main line of PLC by tractor drive motor frequency converter, tractor drive motor contactor, tractor drive motor contactor; Described power output shaft control circuit comprises Power output spindle motor, and described Power output spindle motor is connected to the main line of PLC by power output shaft frequency converter, power output shaft contactor, power output shaft contactor; Described hydraulic pump control circuit comprises hydraulic pump drive motor, and described hydraulic pump drive motor is connected to the main line of PLC by hydraulic pump drive motor contactor, hydraulic pump drive motor contactor; Described two-wheel test unit control circuit comprises two-wheel test unit drive motor, and described two-wheel test unit drive motor drives frequency converter, two-wheel test unit to drive contactor, two-wheel test unit to drive contactor to be connected to the main line of PLC by two-wheel test unit.
In technique scheme, described vertical loading mechanism comprises the Linear bearing guide rail being arranged at vehicle frame front lower portion, supportingly in described Linear bearing guide rail is provided with linear bearing, is connected with tractor chassis by linear bearing; Be provided with in the upper end of Linear bearing guide rail and the vertically disposed hydraulic cylinder leg in vehicle frame surface, on the top of hydraulic cylinder leg, there is outward extending cross bar, the afterbody of described cross bar is fixed with hydraulic cylinder, the internal sleeve of hydraulic cylinder is connected to hydraulic stem, and hydraulic stem end is connected with the vehicle frame of two-wheel test unit.
In technique scheme, described balance wheel mechanism comprises the barreled elevating mechanism driven by trapezoidal screw, and the top of described elevating mechanism is connected with vehicle frame by web member; The top of described elevating mechanism is provided with double rocker mechanism and lifting handle, and the bottom of described elevating mechanism is socketed with elevating lever, and the bottom of described elevating lever is connected with balance wheel by web member.
In technique scheme.
After adopting structure of the present invention, the ess-strain of tire under different experiments factor can be tested, and the mechanics parameter of the agricultural machinery and implement such as plough, rotary cultivator, condition and the environmental factor of test are controlled, test figure and parameter measurement are conveniently, and measuring accuracy is high, test repeatability is good, and solves the problem of the draw-off equipment vibration effect measurement result existed in existing test system.Driving force of the present invention is large in a word, and precise control is reliable, and test is flexible, and collection stores data and links up.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation testing tractor in the present invention.
Fig. 3 is the vertical view testing tractor in the present invention.
Fig. 4 is the structural representation of vehicle frame in the present invention.
Fig. 5 is the structural representation of gear train in the present invention.
Fig. 6 is the structural representation of angle sheave in the present invention.
Fig. 7 is the structural representation of complemental brake system in the present invention.
Fig. 8 is the schematic diagram of hydraulic system in the present invention.
Fig. 9 is the hardware composition diagram of control section in the present invention.
Figure 10 is control section circuit diagram in the present invention.
Figure 11 is that PLC of the present invention controls frequency converter wiring schematic diagram.
Figure 12 is that PLC of the present invention controls three-position four-way electromagnetic directional valve wiring schematic diagram.
Figure 13 is the process flow diagram of control section of the present invention.
Figure 14 is the main surface chart of control system of the present invention.
Figure 15 is control system Operation interface diagram of the present invention.
Figure 16 is part of detecting functional schematic of the present invention.
Figure 17 is that schematic diagram arranged by parallel double frame mechanism pressure transducer of the present invention.
Figure 18 is plowing resistance experimental test interface of the present invention.
Figure 19 is two-wheel test unit structural representation of the present invention.
Figure 20 is the drive path figure of two-wheel test unit of the present invention.
Figure 21 is vertical loading mechanism structure schematic diagram of the present invention.
Figure 22 is the structural representation of balance wheel mechanism of the present invention.
Embodiment
Embodiment one
The soil bin test chassis of the present embodiment, its structure is as shown in Fig. 1 to Figure 22, and the present invention is made up of soil box system 1, test tractor 2 and two-wheel test unit 3.
Soil box system comprises soil box body, and this soil box body concreting forms, and its both sides are respectively provided with the Hot-roller font channel-section steel of No. 10, as the running rail of tractor.The upper surface of this channel-section steel is concordant with soil box upper surface, and channel-section steel and track dormant bolt are fixed.Meanwhile, the water inlet pipe adopting Φ 40mmPVC pipe to make is placed with along long limit, soil box side.And on the same generatrix direction of water inlet pipe, output a through hole at interval of 1m, for mounting spray head.The water inlet of this shower nozzle is controlled by main valve of intaking, and each shower nozzle can switch separately, to ensure in soil box that water spray evenly and produce a desired effect.Longitudinally a Soil Moisture Sensor is installed with every 3m in soil box body inside.Meanwhile, for convenience of draining, the drainage grade of 0.4% is outputed at bottom land.And being longitudinally also evenly equipped with four draining floral tubes along bottom land, floral tube internal diameter is Φ 200mm.Floral tube outputs a water seepage hole every 200mm, and the xsect of each floral tube is circumferentially evenly equipped with four water seepage holes.Be filtering layer above floral tube, be followed successively by sand, stone, geotextile from lower to upper.During draining, current flow to the draw-well being positioned at soil box end through floral tube by water seepage hole, extracted out by water by the water pump in well.
Fig. 3, Figure 4 shows that test tractor and the structural representation of two-wheel test unit.
This test tractor comprises mechanical part, hydraulic part, control section and part of detecting.
Wherein, mechanical part comprises vehicle frame 21, gear train, travel mechanism, arrestment mechanism and rear working mechanism.Vehicle frame carries the weight of all testing equipments and experimenter, as shown in Figure 4.Vehicle frame is welded by 5# square steel, and steelframe cross sectional dimensions is 30 × 30mm, the steel plate that vehicle frame surface-welding 10mm is thick.The first truss is transversely furnished with in vehicle frame comprises, first truss comprises two crossbeams and four longerons that be arranged in parallel, crossbeam and longeron head and the tail connect to form closed rectangular frame, and the column be provided with in the corner of rectangular frame straight down, first truss is connected with the second truss by column, is equidistantly installed with reinforcement between the first truss and the second truss along longeron direction.This structure bendind rigidity is comparatively large, and part is installed fastening more convenient, can reliably support experimental facilities and experimenter.Vehicle frame is also provided with the stainless steel handrail that 0.8m is high, to ensure the safety of experimenter.Gear train increases square to the dynamic retarding that motor exports, and the rated power of instruction carriage drive motor (Y180L-4) is 22kW, and specified output speed is 0-1470r/min, and by frequency converter timing, drive shaft speed scope is 0-133r/min.Figure 5 shows that drive path.
Gear train is made up of the first intermediate shaft 23, V belt translation 24, gear drive 25, left front axle 26, front right axle 27, left rear axle 28, right back axle 29, first coupling shaft 30, shaft coupling, detent, Chain conveyer 31, bearing.Power and the moment of torsion band of drive motor 32 drive to gear drive, then are passed to driving shaft, be passed to left and right front axle, and arrive both sides wheel via rolling bearing, detent, shaft coupling; By Chain conveyer, front axle power and moment of torsion are delivered to left and right rear axle again, realize four-wheel drive.
The torque of drive motor is then converted into the driving force of test tractor walking by travel mechanism, for ensureing the riding stability of this test tractor under low-speed heave-load and reliability, select to possess enough resistance to pressures and wearing quality, have the solid tyre 33 of higher hardness, low permanent strain and good wearing quality, tire outside diameter is Φ 400mm.Can ensure straight line moving in order to ensure test chassis, all install an angle sheave 34 inside four wheels, as shown in Figure 6, this angle sheave coordinates with the I shape channel-section steel inside cement platform track structure, realizes guiding.Angle sheave uses vulcanie wheel, is connected with vehicle frame by bolt, and can by the height regulating the position of straight-bar upper bolt hole to change angle sheave.
Arrestment mechanism, in order to ensure that this test tractor can stop safely and reliably, adopts triple brake system, is respectively mechanical braking, electric braking, travel switch braking and auxiliary braking.Accurately can control application position like this, make braking smooth-going, good stability.Wherein, mechanical braking adopts the support formula magnetic powder brake 35 being installed on the coupling shaft side of gear train to realize braking function.Electric braking adopts the converse of threephase asynchronous to connect control for brake principle, utilizes the three-phase alternating-current supply of negative-phase sequence, makes motor produce reversing braking power, impels motor to stop rapidly.Travel switch brake system adopts the traveling-position of travel switch to tractor to control.
And the structure of auxiliary brake mechanism 36 as shown in Figure 7, be a brute spring 37 being fixedly installed in soil box tail track, this brute spring and parallel track are vertical with platform travel direction, spring inner is provided with spring core, is fixed on the end of soil box track respectively with the bolt of 4 M6.
Rear working mechanism 55 is for mounting agricultural machinery and implement and experimental subjects, and select hydraulic pressure three-point hitch to be assemblied in tractor rear portion, load-carrying capacity can reach 10kN.Power output shaft adopts independently motor to drive.Power output spindle motor (Y132M-4), rated power is 7.5kW, and rated speed is 1440r/min, and power output shaft speed is 0-1000r/min, uses frequency converter timing.
Hydraulic part 6, for handling rising and the decline of hitch, reaches objects such as controlling the working depth of agricultural machinery and implement and tire vertical load.Hydraulic system principle figure as shown in Figure 8.Hydraulic part comprises the parts such as oil pump, fuel tank, hydraulic cylinder, operation valve, and oil pump selects bidirectional hydraulic gear-type pump rated pressure to be 10.5MPa, and pumping rate is 3.07mL/r, and delivery rate is 5.34L/min.
Control section 7 turns for the start and stop controlling tractor, and stepless control haulage speed, accurately controls damping force.The execution of hydraulic control system, promotes or dropping test agricultural tool and two-wheel test unit, the position of fine adjustment cylinder and oil pressure.The vertical load of simulated dual wheel test device, realizes dynamic constant force and controls; Regulate the oil cylinder position of the three-point hitch of rear working device, realize the accurate control to test agricultural machinery embedded depth.And control the operation of two-wheel test unit, make it possess certain driving force, arrive testing requirements.Real-time display, printing store chassis parameter and test component parameter.Control section is core with PLC, and comprise host computer, touch-screen, input/output module etc., its hardware composition frame chart as shown in Figure 9.As shown in Figure 10, M1 is tractor drive motor to control section main line, and M2 is Power output spindle motor, and M3 is hydraulic pump drive motor, and M4 is two-wheel test unit drive motor.PLC adopts the mode of Analog control frequency converter, and wiring diagram as shown in figure 11; PLC controls the wiring diagram of three-position four-way electromagnetic directional valve as shown in figure 12.Tractor control flow chart as shown in figure 13, first starts and starts switch, enter the main interface of system, and arranges and check in these three options of data select required application function in user management, pilot system.After selection pilot system arranges interface, enter test selection unit, and Adjustment Tests optimum configurations, when parameter exceedes critical value, then reenter test parameters and interface is set; When parameter is lower than critical value, starting characteristics test, carries out the collection of test figure, storage; When test in enter alarm region time, the measure of stopping in emergency taked by this test chassis, and be back to test select interface re-start operation; When there is not alarm region in testing, then selecting whether to terminate test, if select to terminate test, then quitting a program, completing test; If select not terminate test, then get back to test option program and again test.
Control section to be operated motor and frequency converter by touch-screen and it is visual, the communication carrying out between operating unit and equipment in the mode of variable by PLC.Control section interface is as shown in Figure 14, Figure 15.Occur main interface after starting, enter control inerface after clicking beginning, all steering orders of table system are all integrated in operation interface.Striking respective regions can change the working method of chassis, running status and speed, handles equipment and controls two-wheel test unit.
The major function of part of detecting is the performance test module showing tractor running status in real time and provide various agricultural machinery, and each functional module as shown in figure 16.The integrated host computer of part of detecting, data acquisition equipment, sensor device and virtual instrument technology etc., for completing the process such as test, collection, storage in agricultural machinery process of the test or tire test.When receiving the acquisition of host computer, data acquisition system (DAS) can gather the signal such as speed, power, tilling depth, Driving Torque, output torque of multiplexer channel and change simultaneously, and stores data in host computer.In plowing resistance test, power suffered on plough body is the non-power of a crossing system in space, adopts parallel double posture six square phase force measuring machine and supporting outer year of testing Plough group of tractor.Parallel double frame mechanism is made up of former and later two bridges and 6 pressure transducers, wherein be furnished with 3 sensors for X-axis and lead, y-axis and side directions are furnished with 1 sensor, and z-axis and vertical direction are furnished with 2 sensors, and the arrangement of tension-compression sensor as shown in figure 17.Transmit power by 6 pull pressure sensor between front/rear door frame plate, Qianmen frame plate is connected with the hitch of tractor, and back door frame plate mounts tested agricultural machinery and implement.Test the data obtained is delivered in host computer in real time to be shown, and the test interface of the plowing resistance test adopting LabVIEW to edit as shown in figure 18.
Two-wheel test unit is then used for simulating actual tractor driving wheel working condition, the factor of rotation rate-controllable, tire pressure, vertical load, slippage rate, tyre surface ess-strain in testing tire motion, the parameters such as six square phase distribution situation and measurement ground connection impression, carry out Strength Analysis of Tires with Geometrical Nonlinearity Considered, tire and the ground coupling analysis etc., for theoretical tire model, tractor 1/2nd model provide verification experimental verification.
Two-wheel test unit is then used for simulating actual tractor driving wheel working condition, the factor of rotation rate-controllable, tire pressure, vertical load, slippage rate, tyre surface ess-strain in testing tire motion, the parameters such as six square phase distribution situation and measurement ground connection impression, carry out Strength Analysis of Tires with Geometrical Nonlinearity Considered, tire and the ground coupling analysis etc., for theoretical tire model, tractor 1/2nd model provide verification experimental verification.
Two-wheel test unit is connected with test tractor by vertical loading mechanism, and the structure of vertical loading mechanism as shown in figure 21.Wherein, vertical loading mechanism comprises the Linear bearing guide rail 44 being arranged at vehicle frame front lower portion, supportingly in this Linear bearing guide rail is provided with linear bearing 45, is connected with tractor chassis by the link 49 of linear bearing inside.And be provided with in the upper end of Linear bearing guide rail and the vertically disposed hydraulic cylinder leg 46 in vehicle frame surface, have outward extending cross bar on the top of hydraulic cylinder leg, the afterbody of this cross bar is fixed with hydraulic cylinder 47, and the internal sleeve of hydraulic cylinder is connected to hydraulic stem 48.Hydraulic stem end is then connected with the vehicle frame of two-wheel test unit.By oil inlet and oil return pressure and the direction of hydraulic control cylinder, adjustable test unit position in the vertical direction, thus the vertical load of bearing in simulation tire running.
The drive shaft speed of two-wheel test unit, torque and tire stress are delivered in the test interface of system through sensor and data acquisition module.It is walked by threephase asynchronous drive unit, frequency converter stepless speed regulation.Power through V belt translation and gear transmission reducing increment, then is transferred to testing tire 38 by transmission shaft, and transmission shaft is connected on vehicle frame by rolling bearing units 43.Transmission shaft is installed torque and speed sensors 39, with the speed of tire in testing experiment process and moment of torsion.Vehicle frame left-half places balancing weight 40 with the weight of balance motor, belt wheel and gear.Each installation balance wheel mechanism 41 before and after vehicle frame, warranty test device is at the balance and stability moved and in installation process, and in process of the test, balance wheel Foldable horizontally.Two-wheel test unit drive motor (Y132M-4), rated power is 7.5kW, and rated speed is 1440r/min, frequency converter timing, and test unit max. speed is 20km/h.The running part of two-wheel test unit is made up of the second intermediate shaft 56, left half axle 57, right axle shaft 58 and two second coupling shafts 59, as shown in figure 20.Second intermediate shaft maximum speed is 490r/min, large belt wheel input torque, gear Driving Torque.Right axle shaft maximum speed is 118r/min, and by gear input torque, right-hand member drives tire motion, and left end is by shaft coupling 42 Driving Torque.Left half axle is by shaft coupling input torque, and left end drives tire motion.Torque and speed sensors is connected between the semiaxis of left and right.Because sensor can not bear radial load, therefore support at its two ends bearing, be connected with two second coupling shafts between bearing with shaft coupling.Two-wheel test unit can simulate the working condition of tire under different vertical load.System regulates the size of vertical load by hydraulic control system, and by the center of gravity of pressure transducer accurate test pressure value size two-wheel test unit in the front and back symmetrical plane of whole device, for assurance device is in mobile and when installing stability, each installation balance steamboat before and after vehicle frame, its structure as shown in figure 22.Rubber wheel 50 and elevating mechanism 51 are bolted, and elevating mechanism uses trapezoidal screw to drive, and lifting process is steady, reliable, has optional position auto-lock function, regulates height by lifting handle 52.Folding handle 53 regulates lift pin locations at 0 ° between 90 °, and double rocker mechanism 54 can folding liftable bar flexibly, and utilizes dead point characteristic to make it to keep stable in upright position.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (10)
1. a soil bin test chassis, is characterized in that: comprise soil box system, test tractor and two-wheel test unit; The front end of described test tractor is provided with two-wheel test unit, and the two moves reciprocatingly along soil box system;
The running rail that described soil box system comprises soil box body and arranges along the both sides of soil box body;
Described test tractor is made up of mechanical hook-up, hydraulic means, control device and proving installation; Described mechanical hook-up comprises vehicle frame, and the below of described vehicle frame is installed with gear train, and described gear train is connected with travel mechanism by coupling shaft, and the rear of described vehicle frame is installed with the rear working mechanism for mounting agricultural machinery and implement and experimental subjects;
Described two-wheel test unit is connected with experiment tractor by the vertical loading mechanism being arranged at vehicle frame front end, comprise the drive motor be arranged on vehicle frame, the output terminal of described drive motor is meshed with gear drive by tape handler, described gear drive is socketed on transmission shaft, and described transmission shaft is fixedly connected with vehicle frame by rolling bearing units; The both sides of described transmission shaft are installed with testing tire; The inner side of described each testing tire is installed with the balance wheel mechanism of a Foldable respectively.
2. the soil bin test chassis according to claim 1, is characterized in that: described soil box body is that concreting forms, the upper surface flush of its upper surface and running rail; The long limit, side of described soil box body is placed with water inlet pipe; Longitudinally equidistantly be arranged at intervals with Soil Moisture Sensor in described soil box body, in described soil box body, be longitudinally evenly equipped with at least two draining floral tubes.
3. the soil bin test chassis according to claim 2, is characterized in that: described water inlet pipe is equidistantly arranged at intervals with shower nozzle along same generatrix direction.
4. the soil bin test chassis according to claim 2, is characterized in that: the first-class intervals of described each draining floral tube has water seepage hole, and described water seepage hole is uniform along the xsect circumference of draining floral tube.
5. the soil bin test chassis according to claim 1, it is characterized in that: in described vehicle frame comprises, be transversely furnished with the first truss, first truss comprises two crossbeams and four longerons that be arranged in parallel, described crossbeam and longeron head and the tail connect to form closed rectangular frame, the corner of described framework is provided with column straight down, first truss is connected with the second truss by column, equidistantly be installed with reinforcement along longeron direction between described first truss and the second truss, the upper surface of described vehicle frame is installed with steel plate.
6. the soil bin test chassis according to claim 1, it is characterized in that: described gear train comprises motor, the output terminal of described motor is connected with coupling shaft by tape handler and gear drive, the both sides of described coupling shaft are connected with the front portion of travel mechanism respectively by left and right front axle, described coupling shaft is socketed with chain-drive mechanism, described left and right front axle is connected with left and right rear axle by chain-drive mechanism, and described left and right rear axle is connected with the rear portion of travel mechanism;
Described travel mechanism comprises the solid tyre arranged along vehicle frame corner, and the inner side of described each solid tyre is provided with adjustable for height angle sheave, and described angle sheave matches with the channel-section steel inside running rail;
Described arrestment mechanism is triple brake system, comprises mechanical braking, electric braking, travel switch braking and auxiliary braking; Described mechanical braking is be installed on support formula magnetic powder brake coupling shaft deviating from gear drive side; Described electric braking adopts the three-phase alternating-current supply of negative-phase sequence, makes motor produce reversing braking power; Described travel switch brake system controls by being installed on the traveling-position of the travel switch on vehicle frame control box to tractor; Described complemental brake system is the brute spring being fixedly installed in soil box tail track, and described spring inner is provided with spring core, parallel with running rail, vertical with platform travel direction.
7. the soil bin test chassis according to claim 1, it is characterized in that: described control device comprises the switch board be arranged on front side of hydraulic means, comprise cabinet, be arranged on the host computer in cabinet, display device, input-output unit, control circuit and be arranged on the control panel of cabinet outside surface; Described control panel is divided into test tractor control area, hydrostatic control region, power output shaft control area and two-wheel test unit control area four part, and every part is equipped with one group of pushbutton switch and instrument display screen; Control circuit comprises tractor control circuit in parallel, power output shaft control circuit, hydraulic pump control circuit and two-wheel test unit control circuit; Described tractor control circuit comprises tractor drive motor, and described tractor drive motor is connected to the main line of PLC by tractor drive motor frequency converter, tractor drive motor contactor, tractor drive motor contactor; Described power output shaft control circuit comprises Power output spindle motor, and described Power output spindle motor is connected to the main line of PLC by power output shaft frequency converter, power output shaft contactor, power output shaft contactor; Described hydraulic pump control circuit comprises hydraulic pump drive motor, and described hydraulic pump drive motor is connected to the main line of PLC by hydraulic pump drive motor contactor, hydraulic pump drive motor contactor; Described two-wheel test unit control circuit comprises two-wheel test unit drive motor, and described two-wheel test unit drive motor drives frequency converter, two-wheel test unit to drive contactor, two-wheel test unit to drive contactor to be connected to the main line of PLC by two-wheel test unit.
8. the soil bin test chassis according to claim 1, it is characterized in that: described vertical loading mechanism comprise be arranged at vehicle frame front lower portion Linear bearing guide rail, supporting in described Linear bearing guide rail linear bearing is installed, is connected with tractor chassis by linear bearing; Be provided with in the upper end of Linear bearing guide rail and the vertically disposed hydraulic cylinder leg in vehicle frame surface, on the top of hydraulic cylinder leg, there is outward extending cross bar, the afterbody of described cross bar is fixed with hydraulic cylinder, the internal sleeve of hydraulic cylinder is connected to hydraulic stem, and hydraulic stem end is connected with the vehicle frame of two-wheel test unit.
9. the soil bin test chassis according to claim 1, is characterized in that: described balance wheel mechanism comprises the barreled elevating mechanism driven by trapezoidal screw, and the top of described elevating mechanism is connected with vehicle frame by web member; The top of described elevating mechanism is provided with double rocker mechanism and lifting handle, and the bottom of described elevating mechanism is socketed with elevating lever, and the bottom of described elevating lever is connected with balance wheel by web member.
10. the soil bin test chassis according to claim 1, is characterized in that: the transmission shaft of described two-wheel test unit is provided with torque sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895123.0A CN105388031B (en) | 2015-12-08 | 2015-12-08 | A kind of soil bin test trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895123.0A CN105388031B (en) | 2015-12-08 | 2015-12-08 | A kind of soil bin test trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105388031A true CN105388031A (en) | 2016-03-09 |
| CN105388031B CN105388031B (en) | 2018-06-22 |
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| CN201510895123.0A Expired - Fee Related CN105388031B (en) | 2015-12-08 | 2015-12-08 | A kind of soil bin test trolley |
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| CN106017966A (en) * | 2016-07-19 | 2016-10-12 | 农业部南京农业机械化研究所 | Walking trolley applicable to soil bin test rig |
| CN106053046A (en) * | 2016-07-19 | 2016-10-26 | 农业部南京农业机械化研究所 | Soil bin test table |
| CN106092413A (en) * | 2016-07-19 | 2016-11-09 | 农业部南京农业机械化研究所 | Soil bin test test platform |
| CN106198083A (en) * | 2016-08-16 | 2016-12-07 | 江西农业大学 | A kind of soil slot test stand |
| CN106884914A (en) * | 2017-03-09 | 2017-06-23 | 黑龙江省农业机械工程科学研究院 | Rotary annular soil slot test stand arrestment mechanism |
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| CN109855886A (en) * | 2019-03-01 | 2019-06-07 | 第一拖拉机股份有限公司 | A kind of tractor-drawn experiment loading unit |
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| CN106053046A (en) * | 2016-07-19 | 2016-10-26 | 农业部南京农业机械化研究所 | Soil bin test table |
| CN106092413A (en) * | 2016-07-19 | 2016-11-09 | 农业部南京农业机械化研究所 | Soil bin test test platform |
| CN106017966A (en) * | 2016-07-19 | 2016-10-12 | 农业部南京农业机械化研究所 | Walking trolley applicable to soil bin test rig |
| CN106198083A (en) * | 2016-08-16 | 2016-12-07 | 江西农业大学 | A kind of soil slot test stand |
| CN106198083B (en) * | 2016-08-16 | 2018-08-17 | 江西农业大学 | A kind of soil slot test stand |
| CN107063651A (en) * | 2016-12-07 | 2017-08-18 | 北京农业智能装备技术研究中心 | A kind of full landform excitation test platform in tractor suspension system farmland |
| CN106884914B (en) * | 2017-03-09 | 2019-01-15 | 黑龙江省农业机械工程科学研究院 | Rotary annular soil slot test stand arrestment mechanism |
| CN106884914A (en) * | 2017-03-09 | 2017-06-23 | 黑龙江省农业机械工程科学研究院 | Rotary annular soil slot test stand arrestment mechanism |
| CN108196032A (en) * | 2017-12-20 | 2018-06-22 | 天津大学 | A kind of plough soil device for being suitable for indoor geotechnical model experimental tank |
| CN108120605A (en) * | 2018-01-19 | 2018-06-05 | 安徽农业大学 | A kind of rotary tillage class cutter mechanical property comprehensive test platform |
| CN108152056B (en) * | 2018-01-19 | 2024-04-26 | 西北农林科技大学 | Comprehensive test platform for mountain crawler tractor |
| CN108332984A (en) * | 2018-04-08 | 2018-07-27 | 浙江大学 | Equipment-soil active force soil bin test detection device and its method |
| CN109552827A (en) * | 2018-10-11 | 2019-04-02 | 山东建筑大学 | A kind of hanger rail type movable power supply food delivery equipment |
| CN109186990A (en) * | 2018-10-22 | 2019-01-11 | 山东农业大学 | A kind of test device and method of lubrication drag reduction subsoiling component operation effectiveness |
| CN109186990B (en) * | 2018-10-22 | 2023-06-30 | 山东农业大学 | Device and method for testing operation effect of lubrication resistance-reduction deep loosening part |
| CN109406172A (en) * | 2018-11-28 | 2019-03-01 | 华南理工大学 | A kind of soil bin test device suitable for wheels travel performance test |
| CN109855886A (en) * | 2019-03-01 | 2019-06-07 | 第一拖拉机股份有限公司 | A kind of tractor-drawn experiment loading unit |
| CN110396977A (en) * | 2019-03-05 | 2019-11-01 | 中船第九设计研究院工程有限公司 | A kind of Dredging Process tank system of test |
| CN111766034B (en) * | 2020-07-09 | 2022-04-12 | 重庆理工大学 | Hand-held agricultural machinery system vibration test bench |
| CN111766034A (en) * | 2020-07-09 | 2020-10-13 | 重庆理工大学 | Hand-held agricultural machinery system vibration test bench |
| CN112345274A (en) * | 2020-10-30 | 2021-02-09 | 广东科学技术职业学院 | New energy automobile tire performance detecting system |
| CN112345274B (en) * | 2020-10-30 | 2022-08-12 | 广东科学技术职业学院 | New energy automobile tire performance detecting system |
| CN113029601A (en) * | 2021-02-18 | 2021-06-25 | 农芯科技(广州)有限责任公司 | Tire field test platform and test method thereof |
| CN114088421A (en) * | 2021-12-03 | 2022-02-25 | 中国人民解放军陆军工程大学 | Wheeled vehicle trafficability characteristic in-situ test simulation device |
| CN115165401A (en) * | 2022-09-09 | 2022-10-11 | 山东孟子居生态农业股份有限公司 | Agricultural machinery wheel performance test device |
| CN115165401B (en) * | 2022-09-09 | 2022-11-22 | 山东孟子居生态农业股份有限公司 | Agricultural machinery wheel performance test device |
| CN115266151A (en) * | 2022-09-28 | 2022-11-01 | 山东孟子居生态农业股份有限公司 | Agricultural machinery wheel test bench |
| 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 |
| CN116754264A (en) * | 2023-07-06 | 2023-09-15 | 盐城工学院 | Tire-soil interaction test platform |
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