A crank-type road surface accelerated loading test device

Abstract

The present invention relates to a detection device for pavement material and structural performance, in particular to a crank-type pavement accelerated loading test device, which specifically includes an integral frame, a power device, a transmission device, a test wheel set and a longitudinal loading mechanism; the integral frame is used for testing The power device is supported, and the power device drives the test wheel set to reciprocate horizontally along the overall frame through the transmission device, and the longitudinal loading mechanism is used to provide downward longitudinal force during the reciprocating movement of the loading wheel set; wherein, the transmission device is crank-connected pole structure. The present invention overcomes the defects existing in existing pavement materials and structural performance tests, and provides a new type of crank-type pavement accelerated loading test device, which can more realistically simulate the driving mode of actual tires on the pavement, improve detection accuracy, and thus be more suitable It is practical and has industrial utilization value.

Description

technical field [0001] The invention relates to a detection device for pavement material and structural performance, in particular to a crank type pavement accelerated loading test device. Background technique [0002] At present, accelerated loading test systems are mainly divided into two categories: full-scale accelerated loading test systems and small-scale accelerated loading equipment. [0003] Among them, the full-scale accelerated loading test system is mainly to conduct accelerated loading research on the built full-scale test road, which can directly establish a relationship with the actual road driving status, so as to evaluate the long-term performance of the road surface. However, the full-scale equipment is large in size and takes a long time, which makes the research cycle long, and the cost of the test is high, requiring a large amount of investment, and the use process is also relatively complicated and inconvenient to operate, so it cannot be widely used an...

AI Technical Summary

Problems solved by technology

However, the tires of this equipment are small in size and cannot simulate the actual size of car tires. For the entire road surface, the load influence range will be small, and there are certain limitations in the research on the long-term performance of the road surface; and the tires in the current research The driving trajectory of the vehicle mainly follows the fixed rails, which makes the equipment heavy and cannot reflect the driving trajectory of the actual road surface. During the test, the influence of heavy-duty traffic on the performance of the road surface was not considered.

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