Automatic cutting device for pre-stressed high-strength concrete (PHC) tubular piles

Abstract

The invention relates to an automatic cutting device for pre-stressed high-strength concrete (PHC) tubular piles. The automatic cutting device has a transverse connecting rod, wherein the two ends ofthe transverse connecting rod are respectively hinged with a longitudinal cutting rod, the front ends of the longitudinal cutting rods are hinged to the transverse connecting rod, the bottom of each longitudinal cutting rod is provided with two supporting legs vertically downward, and universal wheels are installed at the bottoms of the supporting legs; the supporting legs below one of the longitudinal cutting rods are provided with at least two sets of tube wall supporting rollers, and the supporting legs below the other of the two longitudinal cutting rods are provided with a cutting motor and a cutting sleeve vertically; and a cutting shaft is installed in the cutting sleeve through a bearing, the upper end of the cutting shaft is in transmission connection with the cutting motor through a belt wheel and a transmission belt, and a cutting blade is installed at the lower end of the cutting shaft. The automatic cutting device is novel and simple in structural design, convenient to operate and quite convenient to adjust for PHC tubular piles with different diameters, saves time and labor during cutting, and has high efficiency and good cutting effects.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an automatic cutting device for PHC pipe piles. Background technique [0002] PHC pipe piles, that is, prestressed high-strength concrete pipe piles, are made of hollow cylindrical concrete pipe piles by adopting advanced prestressed centrifugal forming technology, and undergoing steam curing at 10 atmospheres (about 1.0Mpa) and 180°C. Suspicious soil prefabricated components, the standard section length is 10m, the diameter is from 300mm to 800mm, and the concrete strength grade is ≥C30. It has a high single pile bearing capacity and a wide range of applications. There are many types of buildings, and it is widely used in various high-rise buildings below 60 floors. And industrial and civil building low-cap pile foundations, railways, highways and bridges, ports, docks, water conservancy, municipal, structures and large-scale equipment and other engineering foundat...

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Problems solved by technology

[0002] PHC pipe piles, that is, prestressed high-strength concrete pipe piles, are made of hollow cylindrical concrete pipe piles by adopting advanced prestressed centrifugal forming technology, and undergoing steam curing at 10 atmospheres (about 1.0Mpa) and 180°C. Suspicious soil prefabricated components, the standard section length is 10m, the diameter is from 300mm to 800mm, and the concrete strength grade is ≥C30. It has a high single pile bearing capacity and a wide range of applications. There are many types of buildings, and it is widely used in various high-rise buildings below 60 floors. And industrial and civil building low-cap pile foundations, railways, highways and bridges, ports, docks, water conservancy, municipal, structures and large-scale equipment and other engineering foundations. The degree of construction is high, and the project cost is the cheapest among many types of piles; however, after the construction of this kind of pipe piles is completed, there are usually pile heads that need to be cut off. The traditional method is to use ordinary cutting machines to cut off, but due to Ordinary cutting machines are hand-held suspended cutting, which is very time-consuming and labor-intensive when cutting, and the pile head cutting is easily deflected, resulting in uneven pile heads, which are not beautiful and will affect subsequent construction operations

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