Steel strand jack pre-tightening device

A steel strand jack pre-tightening device is composed of a hydraulic oil cylinder, a steel strand clamping mechanism and a supporting seat, the hydraulic oil cylinder is composed of a bottom cover, a cylinder barrel, a piston and an inner barrel, the upper end of the bottom cover is connected with t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LIU LIANGUO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES BLASTING CHAINS ENGINEERING ELEMENTS AND UNITS FITTINGS PREDOMINANTLY USED THEREFOR GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAULING HEATING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD LIFTING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A steel strand jack pre-tightening device is composed of a hydraulic oil cylinder, a steel strand clamping mechanism and a supporting seat, the hydraulic oil cylinder is composed of a bottom cover, a cylinder barrel, a piston and an inner barrel, the upper end of the bottom cover is connected with the supporting seat, a spring is arranged in the supporting seat, the piston is arranged in the bottom cover and the cylinder barrel, and the inner barrel is arranged in a piston rod. The steel strand clamping mechanism is composed of a taper sleeve, a clamping piece, a gland and a spring, the top of the taper sleeve is connected with an inner barrel in a piston rod of the hydraulic oil cylinder, the clamping piece is embedded in the upper portion of the taper sleeve, a through hole used for being connected with a steel strand is formed in the middle of the clamping piece, the spring is fixed to the bottom of the clamping piece through the gland, and the gland is provided with a corresponding through hole correspond