论文部分内容阅读
国外广泛采用的是双级螺旋开槽滚筒,这种结构由五个部份组成:1.直槽部份有两段,每段在滚筒圆周方向的弧长对应的中心角为135°。2.斜槽部份也有两段,每段在滚筒圆周方向的弧长对应的中心角为45°。3.支撑台肩。4.爬坡上升区。5.反转楔。在滚筒圆周上的布置为直槽(135°)→斜槽(45°)→直槽(135°)→斜槽(45°)共计360°为一周。这种结构,钢绳在直槽内是线接触,导向好,应力小。钢绳在斜槽内是点接触,但在一周内只有90°,受力情况好得多,从而提高了钢绳使用寿命,减少缠绳
Widely used abroad is a two-stage spiral grooved drum, this structure consists of five parts: 1. Straight groove part has two sections, each section in the drum circumference of the arc length corresponding to the central angle of 135 °. 2. The chute part also has two sections, each of the arc length in the circumferential direction of the drum corresponds to a central angle of 45 °. 3. Support the shoulder. 4. Climbing up area. 5. Reverse wedge. The arrangement on the circumference of the drum is straight slot (135 °) → chute (45 °) → straight slot (135 °) → chute (45 °) totaling 360 ° for one week. This structure, the wire rope in the straight groove line contact, good guidance, stress. Steel rope in the chute is a point of contact, but only 90 ° in a week, the stress is much better, thereby increasing the service life of steel wire rope to reduce the rope