公开(公告)号：US3826353A

公开(公告)日：1974-07-30

申请号：US27816672

申请日：1972-08-04

Applicant: GREASLEY C

Inventor： GREASLEY C

IPC: B65G15/26

CPC classification number: B65G15/26 ,  B65G2201/06

Abstract: A conveyor includes a first elongated support which is movably coupled to a support structure, and a second elongated support which is supported by the first support. A conveyor belt, engaged with the first support, the second support, and a motor, tends to extend or retract the second support with respect to the first support depending on the sense of rotation imparted to the belt by the motor. However, brake means connected between the first and second supports continuously create a frictional force which prevents relative motion between the first and second supports due to the action of the free running belt. The second support includes means for directly trapping the moving belt, thereby causing the belt to apply a force between the first and second supports which overcomes the frictional force provided by the brake means and creates relative motion between the first and second supports.

Abstract translation: 输送机包括可移动地联接到支撑结构的第一细长支撑件和由第一支撑件支撑的第二细长支撑件。 与第一支撑件，第二支撑件和电动机接合的传送带倾向于相对于第一支撑件延伸或缩回第二支撑件，这取决于由电动机施加给带的旋转感。 然而，连接在第一和第二支撑件之间的制动装置连续地产生摩擦力，该摩擦力由于自由运行带的作用而阻止第一和第二支撑件之间的相对运动。 第二支撑件包括用于直接捕获移动带的装置，从而使带在第一和第二支撑件之间施加力，其克服由制动装置提供的摩擦力，并在第一和第二支撑件之间产生相对运动。