平键,是依靠两个侧面作为工作面,靠键与键槽侧面的挤压来传递转矩的键。平键分为普通型平键、薄型平键、导向型平键三种。普通型平键对中性好,定位精度高,折装方便,但无法实现轴上零件的轴向固定,用于高速或承受冲击、变载荷的轴;薄型平键用于薄壁结构和传递转矩较小的地方;导向型平键用螺钉把键固定在轴上,用于轴上的零件沿轴移动量不大的场合。
传动轴用平键传动。
在逆止器的轴端孔内通过胀套和双平键与从 动轴连接;
The inner part of a shaft end hole of the backstop is connected with a driven shaft through an expansion bush and a double flat key;
本公司主要生产铆钉、螺栓、螺母、平垫、弹垫、挡圈、销轴平键等系列配套产品。
Our company mainly produces series of accessory products as rivets, bolts, nuts, flat washers, spring hooks, stoppers and axis pin & flat keys etc. all the products strictly follow national standards.
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