PLATE CHAIN FOR HYDRAULIC GATES WITH DIFFERENTIAL PITCH Russian patent published in 2023 - IPC F16G13/06 E02B7/36 

FIELD: lifting and transport machinery.

SUBSTANCE: plate chain for hydraulic valves with a differential pitch consists of identical inner (1) and outer (2) plates separated by remote fixed bushings (3), in which rotational elements are freely installed, turning during operation, equipped with fixing elements installed on them. The chain consists of operating and remote sections. Each rotational element is made in form of a spool (4). The pitch between the axes of spools of the operating section is equal to the distance between the teeth of the drive sprocket of the drive mechanism. The step between the axes of the spools of the remote section is twice the step between the axes of the spools of the operating section of the chain. Along the edges of each spool, identical fixing elements are installed on both sides, made of a washer and an outer locking ring. Washers are installed between the inner and outer plates of the operating (7) and remote (8) sections. The extreme bushings of the operating and remote sections are attached to each other by means of outer plates. The length of the operating section of the chain is equal to the stroke of the hydraulic gate. The length of the remote section of the chain is equal to the distance from the connecting spool of the remote section to the gate of the hydraulic gate.

EFFECT: metal consumption is reduced and service life of the chain is increased.

1 cl, 3 dwg