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1.结构及原理我公司生产的PY220型平地机最大入土深度为500 mm,最大提升高度为458 mm,铲刀回转角度范围要求为36°～66°。该型机铲刀回转装置如附图所示,由上轴1、伸缩缸2、铲刀3、角位器4、轴头5、摆动缸6以及引导螺栓滑槽7等组成。伸缩缸2两端分别连接上轴1和角位器4。角位器4中间的引导螺栓滑槽7内装
1. Structure and Principle The PY220 grader manufactured by our company has the largest soil depth of 500 mm, the maximum lifting height of 458 mm, and the blade rotation angle range of 36 ° ~ 66 °. As shown in the drawings, this type of machine blade turning device is composed of an upper shaft 1, a telescopic cylinder 2, a blade 3, an angle positioner 4, a shaft head 5, a swing cylinder 6, a guide bolt chute 7 and the like. Both ends of the telescopic cylinder 2 are respectively connected with the upper shaft 1 and the corner positioner 4. The guide bolt chute 7 in the middle of the angle positioner 4 is built-in