A radiator wind tunnel for construction machinery simulating the impact of wind and sand and its application method
A technology for construction machinery and radiators, which is applied in the field of radiator wind tunnels for construction machinery that simulates wind and sand impact, can solve the problems of not having a simulated radiator module impacted by wind and sand, shorten the design cycle, reduce actual vehicle experiments, and improve The effect of strength and durability
Active Publication Date: 2015-08-19
SHANDONG UNIV
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Problems solved by technology
At present, the car radiator wind tunnel mainly detects the heat transfer and flow resistance of the radiator, and does not have the function of simulating the impact of the radiator module by wind and sand.
Method used
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[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0039] As shown in Figure 1(a)-Figure 1(c), a radiator wind tunnel for engineering machinery that simulates the impact of wind and sand includes an air duct, and the air duct includes an air inlet section 1 and a front blowing section connected in sequence , side and bottom surface blowing section, hourglass control section, radiator module 11, stable speed measuring section 12, wind speed measuring device 13; Described front blowing section is provided with front blowing fan 3, and described front blowing fan 3 is installed on the front blowing fan on the variable frequency motor 2; the side of the side and bottom blowing section is provided with a side blower 6, the bottom of the side and bottom blowing section is provided with a bottom blower 9, and the side blower 6 is provided with a side blower Blowing fan 4, described side blowing fan 4 is instal...
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The invention discloses a construction machinery radiator air tunnel capable of simulating wind and sand impact and a using method thereof. The construction machinery radiator air tunnel comprises an air duct which comprises an air inlet segment, a front blowing segment, a side and bottom blowing segment, an hourglass control segment, a radiator module, a stable speed measuring segment and a wind speed measuring device which are connected sequentially. Three blowing fans with different diameters, different numbers of blades and different blade angles are adapted to generate combined airflow, practical wind speed changing rules can be analyzed according to statistics, frequency of variable frequency motors of the fans can be controlled stimulatingly according to a Monte Carlo simulation method, and situation of strong wind flowing in field can be stimulated. Gravels with different diameters are stored in the hourglass, gravel falling area at the bottom of the hourglass can be adjusted through a screw, gravel falling amount can be controlled, and a filter screen in the middle of the hourglass can be used for filtering large-size gravels. The gravels under the filter screen can be rolled up by the airflow generated by the fans and impact to the radiator module to judge whether the radiator module with the strength can resist the wind and dust or not, and thus, a process that the windy and dusty stimulation impacts the construction machinery radiator is realized.
Description
technical field [0001] The invention relates to an experimental device, in particular to a radiator wind tunnel for engineering machinery for simulating the impact of wind and sand and a method for using the same. Background technique [0002] Construction machinery has the characteristics of full load, high ambient temperature, large vibration and shock, and long continuous working time. The design of radiator modules generally considers solving the problem of heat load. However, construction machinery working in the Gobi and deserts is very vulnerable to dust and sand blown up by strong winds hitting the engine compartment. The high-speed sand particles will damage the fins of the radiator and block its flow, thereby affecting the radiator. Normal use of the module. Therefore, the thermal management system of construction machinery not only needs to consider the thermal load, but also has high requirements for the high strength and dust resistance of the radiator module. ...
Claims
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IPC IPC(8): G01M9/02
Inventor 闫伟廖希亮白书战彭玮刘振李孟涵
Owner SHANDONG UNIV