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目前国外生产自卸车用倾卸装置的主要厂家:美国有三家,英国有四家,西德有三家,法国有三家。大部分公司认为,后卸式汽车和半挂车采用前置式举升缸比较好。例如,1970年英国提供的169种倾卸装置中,有130种是采用前置式举升缸的。前置式举升缸的优点是:倾卸装置的零件应力较小,所以结构轻便、成本低、管路长度最小、保修方便、通用性好,不仅可以用在轴距短的汽车上而且也可以装在轴距长的汽车上。其缺点是车箱升起时间太长(其它条件相同时);举升缸占用了一部分有效空间,(此空间
At present, there are three major manufacturers of dump trucks for dump trucks: three in the United States, four in the United Kingdom, three in West Germany and three in France. Most companies believe that after the dump trucks and semi-trailer front lift cylinder is better. For example, out of the 169 dumper units provided by the United Kingdom in 1970, 130 were using front lift cylinders. The advantage of the front lift cylinder is that the parts of the dumping device have less stress, so the structure is light, the cost is low, the length of the pipeline is the smallest, the warranty is convenient and the versatility is good, not only can it be used on a vehicle with a short wheelbase but also Can be installed in a long wheelbase car. The disadvantage is that the car rises too long (the other conditions are the same); lift cylinder takes up a portion of the available space, (this space