Fork type controlled non-contact wedge backstop

Abstract

The invention relates to a shift-fork type controllable non-contact wedge block inverted device. A non-return member and a controller are arranged on a rotation-preventing arm; the connecting rod of ashift fork member connects with the controller; the inner ring of the non-return member is provided with a bearing and a seal ring, and the outer ring is provided with a front end cap and a rear endcap; cover plates are arranged on the end caps; a wedge block assembly is arranged in a rail formed between the inner ring and the outer ring; a plurality of wedge blocks are arranged between two yokeplates of the wedge block assembly; two ends of the wedge block are provided with torsion springs; the two yoke plates and two shift rings are integrated movably via ring openings which correspond mutually; two fixed stopping rings of the wedge block assembly are provided with holes corresponding to a stopping pin and a yoke plate positioning pin and are assembled together by mutual embedment; the inner end of the shift-fork axle of the shift-fork member movably connects with the outer end of the shift fork; the inner-end fork port of the shift fork is held on any shift-ring positioning pin of the shift rings; the bearing point of the shift fork connects movably with a corresponding yoke plate via screws; the outer end of the shift-fork axle of the shift-fork member stretches out a connecting rod from a round hole on the end surfaces of the end caps of the non-return member.

Description

technical field [0001] The invention belongs to the field of anti-reverse devices, and relates to a fork-type controllable non-contact wedge backstop. Background technique [0002] At present, contact or non-contact wedge backstops are generally used on belt conveyors, bucket elevators and other conveying equipment at home and abroad to prevent the equipment from being reversed due to the self-weight of the conveyed materials when the equipment is shut down, and to ensure that the equipment and personnel safety, especially the non-contact wedge backstop has been widely used; however, there are still some deficiencies in use: 1) Due to the uneven distribution of positioning pins and stop pins on the yoke plate and dial ring, The assembly process requirements of each component are strict, it is not convenient for serial processing, and the manufacturing cost is high; 2) Since the shift fork part protrudes from the circumference of the end cover to connect with the controller, ...

AI Technical Summary

Problems solved by technology

[0002] At present, contact or non-contact wedge backstops are generally used on belt conveyors, bucket elevators and other conveying equipment at home and abroad to prevent the equipment from being reversed due to the self-weight of the conveyed materials when the equipment is shut down, and to ensure that the equipment and personnel safety, especially the non-contact wedge backstop has been widely used; however, there are still some deficiencies in use: 1) Due to the uneven distribution of positioning pins and stop pins on the yoke plate and dial ring, The assembly process requirements of each component are strict, it is not convenient for serial processing, and the manufacturing cost is high; 2) Since the shift fork part protrudes from the circumference of the end cover to connect with the controller, most of the protruding parts are long holes, which is not easy to seal

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