标准摘要
[中文适用范围]: 本国际标准根据 ISO 10326-1 规定了测量和评估农用轮式拖拉机操作员座椅悬挂有效性的实验室方法。 它还根据测试结果规定了验收标准,同时定义了与配备橡胶轮胎、非簧载后轴和无低频驾驶室隔离的三类农用拖拉机相关的输入光谱类别 - 重达 3 600 kg(1 类)的农用拖拉机、 3 600 kg 至 6 500 kg(2 级)和 6 500 kg 以上(3 级)——每一个都定义了一组具有相似振动特性的机器。 该方法测试座椅悬架在减少频率为 1 Hz 至 20 Hz 的垂直全身振动时的有效性。 它不适用于通过座椅以外的方式到达操作员的振动(例如操作员在平台上的脚或控制踏板或方向盘上的手感觉到的振动)。 注:本国际标准中定义的测试和标准适用于传统设计的农用拖拉机中使用的操作员座椅。 具有独立前轴或后轴或两者和低频驾驶室悬架等设计特点的拖拉机,会导致明显不同的振动特性,可以根据 ISO 5008 进行测试,以确定全身振动发射值,或使用为以下目的制定的其他标准:测量和评估此类车辆座椅悬架的有效性。 [外文原描述]: ISO 5007:2003 specifies, in accordance with ISO 10326-1, a laboratory method for measuring and evaluating the effectiveness of the suspension of operator seats on agricultural wheeled tractors. It also specifies acceptance criteria based on the test results, while defining the input spectral classes relating to three classes of agricultural tractor with rubber tyres, unsprung rear axles and no low-frequency cab isolation -- those of up to 3 600 kg (class 1), those of from 3 600 kg to 6 500 kg (class 2), and those of over 6 500 kg (class 3) -- each of which defines a group of machines having similar vibration characteristics. The method tests the effectiveness of the seat suspension in reducing the vertical whole-body vibration transmitted to the operator at frequencies of from 1 Hz to 20 Hz. It is not applicable to vibration reaching the operator other than through the seat (e.g. that sensed by the operator's feet on the platform or control pedals or hands on the steering wheel).
英文名称Agricultural wheeled tractors — Operator's seat — Laboratory measurement of transmitted vibration