Structure and composition of Front Gripping Stressing Jack?
Most of the prestressed tensioning equipment in transportation, construction, and other projects are rear cassette jacks, and the exposed steel strands are long (0.6m~0.8m), which will be cut off after tensioning, which is costly and wasteful. Front Gripping Stressing Jack has many advantages such as simple and novel overall structure, advanced technology, high production efficiency, energy-saving and consumption reduction, convenient and fast use, good stability, and guaranteed tensioning quality.
The new high-efficiency and energy-saving group anchor front cassette jack consist of a back cover, a gland, a threaded sleeve, a positioning sleeve, a piston, a cylinder, a tool clip, a steel wire, a tool anchor ring, a front cover, and an extension sleeve (optional). ), limit plate, working clip (outer part), work anchor ring (outer part), and sealing ring.
The construction technology principle of Front Gripping Stressing Jack
The tool anchor of the Front Gripping Stressing Jack is in the front, that is, the distance between the tool anchor and the working anchor is shorter than that of the rear cassette jack, which greatly shortens the lengthened section outside the effective prestress of the steel strand, generally 0.2m~0.3m. Yes (compared to the exposed steel strand of the rear cassette jack, the length of 0.6m~0.8m saves 0.4m~0.5m), which greatly reduces the number of steel strands, reduces production costs, and has significant economic benefits.
Safety guarantee for the use of the new front cassette jack: The jack is equipped with a safety valve oil nozzle on the return journey. When the operation is improperly overpressured, the safety valve plate will be broken, and the oil leakage pressure will drop, which plays a protective role. At this time, the oil nozzle bypass can be replaced. The safety tablet continues to be used.
Front Gripping Stressing Jack Rapid Tensioning Construction Technology
1 Rapid unloading and threading of steel strands
2 Quick Assembly Front Gripping Stressing Jack
3 Install the work clip
4 Install the limit plate
5 Install the transition extension
6 Quick installation front cassette jack
7 Quick Install Tool Anchor
8 Install the tool clip
9 Fast Tension
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