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一、目前的验收标准及存在问题 泰山-12拖拉机的液压悬挂系统为简单半分置式。主要有单柱塞油泵、分配阀(与泵一体)和油缸三大元件构成。而目前各生产厂称它们为前盖总成(泵和分配阀)、后盖总成(油缸)以及与之匹配的悬挂机构。根据机械部〈83〉农质字447号文规定:悬挂轴提升行程不小于420毫米;提升时间≤3秒;30分钟静沉降值≤15毫米。
First, the current acceptance criteria and problems Taishan -12 tractor hydraulic suspension system for a simple semi-sub-type. There are mainly single-plunger pump, dispensing valve (with the pump) and the fuel tank composed of the three major components. Currently, however, the manufacturers call them front cover assemblies (pumps and distribution valves), rear cover assemblies (cylinders), and matching suspension mechanisms. According to the Ministry of Machinery <83> No. 447 for agricultural character, the lifting axle should have a lifting stroke of not less than 420 mm; the lifting time should be less than 3 seconds; the static sedimentation value should be less than or equal to 15 mm in 30 minutes.