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Assembled continuous lifting jack for finish-rolling threaded steel bar vertical columns

A technology for finishing rolling threads and jacks, which is applied in hoisting devices, buildings, building structures, etc., can solve problems such as inability to universally stretch prestressed steel strands, expensive investment in hoisting equipment, and inability to achieve multiple uses for one machine. The effect of light weight, good strength and rigidity, and low cost of equipment modification

Active Publication Date: 2012-08-01
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently known continuous lifting equipment, except for conventional hoists, electric or manual chain hoists, etc., the recognized lifting equipment with large lifting capacity and safe and reliable lifting equipment is the special continuous lifting hydraulic jack produced by the manufacturer. This set of lifting equipment can only be used for lifting construction. It cannot be generally used in prestressed steel strand tensioning in prestressed engineering construction, etc.
In addition, the purchase of special continuous lifting equipment is expensive and the utilization rate is low, so one machine cannot be used for multiple purposes. Especially when a multi-point jack cluster is required for overall lifting, the investment cost of the lifting equipment is expensive, which brings great difficulties to the undertaking project

Method used

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  • Assembled continuous lifting jack for finish-rolling threaded steel bar vertical columns
  • Assembled continuous lifting jack for finish-rolling threaded steel bar vertical columns
  • Assembled continuous lifting jack for finish-rolling threaded steel bar vertical columns

Examples

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Embodiment Construction

[0018] The fine-rolled threaded steel column assembled continuous lifting jack includes a hydraulic through-hole jack, a column support frame, an upper tool anchor, a lower tool anchor and a guide safety anchor. The hydraulic jack adopts ordinary prestressed tension jack; the column support frame is composed of fine-rolled threaded steel bars, platform steel plates, and threaded sleeves and nuts matched with the finished-rolled threaded steel bars. The platform steel plates are divided into lower tool anchor steel plates, The pressure-bearing steel plate at the bottom of the jack, the clamping plate at the end of the cylinder body of the jack, and the guide safety anchor fix the steel plate; the anchors for the upper tool anchor, the lower tool anchor and the guide safety anchor for anchoring the hoisting steel strand use a strip steel hinge clip top pressure spring The automatic tool anchor, and the elastic coefficient of the pressure spring of the steel strand clip of the gui...

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Abstract

The invention discloses an assembled continuous lifting jack for finish-rolling threaded steel bar vertical columns. The common prestress tensioning jack (1) is fixed on the finish-rolling threaded steel bar vertical columns (2) through a jack tail clamping plate (4) and a jack bearing steel plate (5); an upper tool anchor (8) is fixed on the head of a piston of the common prestress tensioning jack (1) through bolts; a lower tool anchor (9) is positioned on the lower part of the common prestress tensioning jack (1) and fixed on a lower tool anchor fixing steel plate (6) through an anchor plate clamping ring (15), a lower tool anchor plate clamping ring and a lower tool anchor fixing steel plate connection sleeve (16); threaded sleeves (10) are sleeved outside the finish-rolling threaded steel bar vertical columns (2) and positioned between the jack bearing steel plate (5) and the lower tool anchor fixing steel plate (6); a guide safety anchor (7) is positioned above the common prestress tensioning jack (1) and fixed with an upper guide safety anchor fixing steel plate (3) through bolts; and the upper guide safety anchor fixing steel plate (3) is fixed on the finish-rolling threaded steel bar vertical columns (2).

Description

technical field [0001] The invention relates to equipment for performing continuous lifting in civil construction engineering, and belongs to the field of construction machinery equipment in civil construction engineering. Background technique [0002] The "lifting method" is a construction method in which components or structures are continuously lifted obliquely or vertically to a certain height position by a lifter in the construction of civil engineering construction. What kind of lifting equipment is used is the key to the application of the lifting method. At present, the lifting equipment that is widely used in the construction of the lifting method at home and abroad is a special hydraulic continuous lifting jack developed on the basis of the prestressed steel strand anchor system and hydraulic jack tensioning equipment. The principle is to use the output flow and oil pressure of the hydraulic pump station to drive the jack cylinder to extend and shrink, and to ancho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/25E04G21/12
Inventor 郭正兴罗斌
Owner SOUTHEAST UNIV
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