A kind of outdoor runway performance testing ground for combine harvester
Technical field
The present invention relates to a kind of Agricultural Machinery Design united reaper performance test foundation structure, specifically refer to a kind of outdoor runway performance testing ground for combine harvester.
Background technology
In recent years, along with the manufacture level of domestic united reaper product improves fast, output increases, united reaper recoverable amount significantly improves, the attention degree that domestic agricultural machinery manufacturing enterprise is detected parts and overall performance is inadequate, there is in various degree poor reliability in united reaper, failure rate is high, the problems such as the mean free error time is short, it is mainly the test condition that lacks corresponding parts or overall performance detection test unit and real working condition simulation, thereby cause domestic agricultural machinery product in quality, life-span, functional reliability, riding stability is all difficult to compared with imported product with aspects such as maneuverability, for example, the average non-fault activity duration of import united reaper generally can reach more than 70 hours, and the average non-fault activity duration of Domestic Combined harvester generally all only has 25-30 hour.
Owing to lacking relevant Fast simulation actual operating conditions and the research technique of field conditions, cause the construction cycle of united reaper product long, improvement in performance is slow.This situation has seriously hindered the development of China's united reaper technical progress and intellectualized technology thereof.
The technical solution adopted for the present invention to solve the technical problems is: according to the truth of united reaper road traveling and farm work, invented the outdoor track performance checkout area of united reaper, can be used for the various performance tests of united reaper.
Summary of the invention
The object of the invention is exactly the problem and shortage for existing united reaper performance technologies and existence, design provides a kind of outdoor runway performance testing ground for combine harvester, for united reaper load monitoring, Based Intelligent Control, Performance Detection, vibration analysis, thereby carry out improvement in performance, to improve robotization and the intelligent level of Domestic Combined harvester.
A kind of outdoor runway performance testing ground for combine harvester, is characterized in that described testing field is made up of hard pavement, the mud pin road surface that is provided with water drainage-supply system.
Described hard pavement is cement concrete constructions, comprises level road, the road surface of jolting, combination obstacle road surface and parking experiment table; Jolt road surface and combination obstacle road surface can be used for detecting vibration characteristics under united reaper driving cycle, chassis loading spectrum data collection and analysis, obstacle passes through performance; Can be used for simulating stability, the reliability testing analysis of the key devices such as chassis of combine harvester and the ceding of Taiwan, threshing cylinder, separating cleaning, wheel box and complete machine simultaneously; Parking testing table can be tested united reaper braking ability, grade climbing performance, performance in slope on ramp, and tests the performance of travelling, stop and starting to walk in climb and fall section; Whether speed when level road can be used for detecting the each gear of united reaper and travels meets designing requirement.
If having the clay of 20~30% water percentage, described mud pin road base forms, control the water yield, capable of regulating mud pin road surface Soil adhesion coefficient and friction force, the mud pin degree of depth is less than 20cm, can simulate united reaper track operating mode in paddy field, test its chassis loading spectrum, and carry out simulation loading, paddy field work trafficability characteristic, stability and functional reliability.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1: united reaper outdoor test field structure schematic diagram;
Fig. 2: shape in domatic and size schematic diagram;
In figure: 1. level road, the 2. height runway road surface of jolting, the 3. low runway road surface of jolting, 4. combination obstacle road surface, 5. parking testing table, 6. mud pin road surface.
Embodiment
(1) runway performance testing ground is applicable to fabric width scope (1.5~5m), and the outdoor track performance test of various united reapers that power is 30kw~100kw, designs united reaper travel speed 5~25km/h.
(2) mud pin road surface 6 is positioned at runway performance testing ground middle part, distance test (DT) field left hand edge 20m, area is 80m × 30m, the mud pin degree of depth is less than 20cm, load-bearing capacity is greater than 150kPa, there is confession, drain function, can change the ratio of high liquid limit clay or middle liquid limit clay, thereby can change the sticking coefficient of soil and united reaper contact portion (steel and rubber etc.) different materials.
(3) hard pavement is positioned at mud pin road surface surrounding, upper and lower both sides length 120m, width 10m, runway performance testing ground outermost is the road surface of jolting, and the road surface of jolting is made up of the banded obstacle that slows down, and wherein the high runway road surface 2 of jolting is positioned at top side, testing field, apart from runway performance testing ground left hand edge 20m, area is 5 × 20m, and obstacle height is 120 mm, and adjacent obstacle spacing is 3m.The low runway road surface 3 of jolting is positioned at lower side, testing field, and apart from runway performance testing ground left hand edge 20m, area is 5 × 20m, and obstacle height is 80mm, and adjacent obstacle spacing is 3m; Combination obstacle road surface 4 is positioned at runway performance testing ground top side and lower side equally, lay respectively at the jolt right side on runway road surface 2 and the low runway road surface 3 of jolting of height, high runway road surface 2 and low runway road surface 3 20m that jolt of jolting of distance respectively, area is 5 × 20m, adjacent obstacle spacing 3m; Installation is mixed at random by the height banded obstacle of banded obstacle and low deceleration that slows down in combination obstacle road surface 4, for example 1 banded obstacle of high deceleration and 1 alternate formation of the banded obstacle of low deceleration or form by 2 banded obstacles of high deceleration are alternate with 1 banded obstacle of low deceleration, the high banded obstacle height that slows down is 120 mm, the banded obstacle height of low deceleration is 80mm, and in hard pavement, removing the road surface of jolting, combination obstacle road surface 4 and parking experiment table 5 outer is level road 1.
(4) parking testing table 5 is positioned at 6 right sides, mud pin road surface, the high 1m in slope in slope, and slope width 5m, two side slopes and by-level section vertical projection are to the total length 19m of surface level, and the slope vertical projection length of both sides is respectively 4m and 5m.