| 摘要 |
The invention contemplates a unit-handling tool, suitable for field use, for selective extraction or assembly of an end fitting to an end of flexible hose. The tool features a cylindrical anvil which is sized for running clearance with the bore of the end fitting and with the bore of the hose, for insertion through and beyond the distal end of the fitting. The tool provides clamping elements with means for squeezing a hose securely against the anvil and at a location close to but beyond the inner axial end of an end fitting for the hose. The clamped region is longitudinally connected via a differential-action jack screw to structure which is engageable to the exposed longitudinal end of the end fitting; rotation of the jack screw in one direction, as by wrench torque, will drive a new fitting into telescoped assembly to the bore of a hose end, while rotation of the jack screw in the opposite direction will extract an end fitting from a hose. In an assembly operation, the jack-screw connection to the clamped region is in tension, and in an extraction operation, the jack-screw connection to the clamped region is in compression.
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