Stratigraphic multi-grade hydraulic hypocenter apparatus
A stratigraphic multi grade hydraulic hypocenter device is provided. A vibrating sleeve (7) cooperates slidably with an outer circle of a vibrating shaft (6). A journey cavity (5) is formed between a pressure pipe cylinder (4) and the vibrating shaft (6). A two grade pressure cavity (8) is formed be...
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Main Author | |
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Format | Patent |
Language | English |
Published |
05.02.2003
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | A stratigraphic multi grade hydraulic hypocenter device is provided. A vibrating sleeve (7) cooperates slidably with an outer circle of a vibrating shaft (6). A journey cavity (5) is formed between a pressure pipe cylinder (4) and the vibrating shaft (6). A two grade pressure cavity (8) is formed between the lower portion of the vibrating sleeve (7) and the vibrating shaft (6). Injection ports (12.1, 12.2, 12.3, 12.4, 12) are provided on the A-A, B-B, C-C, D-D, F-F cross sections of the lower portion of the vibrating shaft (6) respectively. The upper end of the vibrating sleeve (7) is limited by a step in the pressure pipe cylinder (4). A hoisting short section (1) and a conversion joint (9) are provided on the upper and lower portion of the vibrating shaft (6) respectively, on which a centralizer (10) is fixed respectively. A spring (2) and a marble (3) are provided in the centralizer (10). |
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Bibliography: | Application Number: CN2002224605U |