Ram bearing assembly, seal assembly therefor and associated method

摘要

As seal assembly for a ram assembly is provided. An elongated ram extends through the seal assembly. The seal assembly includes a housing body, a plurality of seals and a retaining, and compression, device. The seals, as well as a male energizer and a female energizer, each have a split body. In this configuration, the seals and energizers may be replaced without removing the seal assembly housing body and retaining device from about the ram. This further allows for the ram to remain in place during seal replacement. That is, the split seals may be separated an placed about the ram. Once in place, the ends of the split seal are joined at an interface. The retaining/compression device compresses the seals so that the interface is sealed.

主权项

1. A seal assembly for a ram assembly, said ram assembly having a housing defining a passage and an elongated ram extending through, and longitudinally movable within, said ram housing passage, said ram longitudinal axis defining a primary axis, said ram having a circular cross-section, said seal assembly comprising:
a seal assembly housing, said seal assembly housing having a body and a retaining device; said seal assembly housing body defining a passage and having an inner surface, and an outer surface; said seal assembly housing coupled to said ram assembly housing at said passage whereby said seal assembly housing passage and said ram assembly housing passage are generally contiguous; said retaining device structured to engage said seal assembly housing and to move longitudinally along said primary axis; said seal assembly housing and said retaining device extending about said ram; at least one seal pack, said at least one seal pack having at least one split seal, each said at least one split seal shaped to correspond to the cross-sectional shape of said ram; and wherein said retaining device includes a locking device structured to prevent movement of said retaining device while said locking device is engaged.