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汽车式起重机的试验分性能试验和结构强度试验两部分。本文把有关的试验方法和试验用的传感器作一介绍。一、结构强度试验方法试验前将起重机安置在坚实的试验坪上,并销紧行车制动器和棘爪,打起支腿,使轮胎离地并调整使起重机在无载条件下水平度偏差不大于0.3%。加载后不再调整。1.静态试验(1)试验工况的确定: 试验工况包括起重机的臂长、幅度、载荷、以及起重臂方位的组合。起重臂受力状况主要取决于臂长、幅度和起重量的组合,一般可取每个臂长曲线的三种情况为试验的工况,即①最大起重力矩时的相应幅度、最大额定吊重;②最大起重力矩时的
The test performance test and structural strength test of the truck crane are two parts. This article will introduce the relevant test methods and test sensors. First, the structural strength test method Before the test, place the crane on a solid test pedestal, and pin tightly the brake and pawl of the service brake. Strike up the leg so that the tire can be lifted off the ground and adjusted so that the horizontal deviation of the crane under no-load conditions is not greater than 0.3%. No longer adjust after loading. 1. Static test (1) Determination of test conditions: The test conditions include the combination of arm length, amplitude, load, and the orientation of the boom. The force condition of the boom is mainly determined by the combination of arm length, amplitude and lifting weight. Generally, the three conditions of each arm length curve are the working conditions of the test, that is, the corresponding amplitude at the maximum lifting moment and the maximum rated lifting capacity. Heavy; 2 when the maximum lifting moment