Prestress tensioning mechanism for steel reinforcement cage

A tensioning mechanism and prestressing technology, applied in the direction of strengthening molding, etc., can solve problems such as not suitable for automatic production, and achieve the effect of high degree of automation and good adaptability

Active Publication Date: 2016-05-11
周兆弟 +7
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the tensioning nut is manually screwed to connect the tensioning nut to

Method used

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  • Prestress tensioning mechanism for steel reinforcement cage
  • Prestress tensioning mechanism for steel reinforcement cage

Examples

Experimental program
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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] The pipe mold of the prior art will be provided with a tensioning wire rod mechanism for tensioning. This tensioning wire rod mechanism is fixedly connected with the pipe mold and with the steel cage. When the tensioning machine is connected with the tensioning wire rod mechanism, The reinforcement cage can be tensioned. Such as figure 2 As shown, the tensioning screw mechanism includes a pipe pile end plate 101 slidingly connected to the inner wall of the pipe mold 100 and a tension end plate 102 fixedly connected to the end of the pipe mold 100. The pipe pile end plate 101 is provided with a number of screw holes. For fixed connection with the reinforcement cage, the pipe pile end plate 101 is fixedly connected to a tensioning wire rod 103, the tensioning wire rod 103 passes through the tensioning end plate 102 and is slida...

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PUM

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Abstract

The invention belongs to the technical field of buildings, and relates to a prestress tensioning mechanism for a steel reinforcement cage. The prestress tensioning mechanism comprises a stander, wherein a tensioning oil cylinder is fixed on the stander; a connecting shaft oil cylinder which is in sliding connection with the stander is arranged in the stander; the power output shaft of the tensioning oil cylinder is fixedly connected with the connecting shaft oil cylinder, and the power output shaft of the connecting shaft oil cylinder is connected with a taper sleeve which is provided with a conical inner cavity and in sliding connection with the inner wall of the stander; the taper sleeve can do reciprocating motion along the inner wall of the stander under the action of the power output shaft of the connecting shaft oil cylinder and is hinged with a plurality of catching blocks which are uniformly arranged along the circumferential direction of the taper sleeve and are in sliding connection with the taper sleeve. The prestress tensioning mechanism can automatically realize connection with a tensioning screw rod and tension the steel reinforcement cage; after the steel reinforcement cage is tensioned, the prestress tensioning mechanism can automatically lock and tension large nuts and is high in automation degree.

Description

technical field [0001] The invention belongs to the technical field of construction and relates to a steel cage prestressed tensioning mechanism. Background technique [0002] The production process of existing prefabricated piles or pipe piles is as follows: [0003] 1. Measuring and mixing of concrete raw materials. According to the designed mix ratio, sand, stone, cement, water, admixtures and admixtures are accurately measured, and a concrete forced mixer is used to make fresh concrete with a low slump of 3cm to 5cm. The design requires concrete The strength grade is not lower than C60 or C80. [0004] 2. Fabrication of centrifugal square pile end plate. The production of the end plate of the pipe pile is basically the same, but the shape of the end plate of the square pile is square, and the counterbores of the prestressed main reinforcement are evenly distributed along the four sides and corners of the end plate. Before the end plate is installed, square pile hoops...

Claims

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Application Information

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IPC IPC(8): B28B21/62B28B21/66
CPCB28B21/62B28B21/66
Inventor 周兆弟
Owner 周兆弟
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