Built-in integrated water joint direction changing mechanism for single power, synchronous two-way mixing pile driver

Abstract

The invention discloses a built-in integrated water joint direction changing mechanism for a single-power, synchronous two-way stirring pile machine. in the transmission shaft. The top inner cavity of the transmission shaft of the direction changing mechanism is provided with an expansion cavity, the bottom end of the delivery shaft of the water joint is inserted below the bottom of the transmission shaft expansion cavity, and a pair of bearings are set on the upper outer wall of the transmission shaft in the expansion cavity. The bearing seat on the outer side of the bearing is fixed in the expansion cavity, and the conveying shaft is fixed on the inner ring of the bearing through a nut. At the bottom of the expansion cavity, there is a packing that acts as a seal on the outside of the conveying shaft. orchid. The built-in integrated water joint direction change mechanism of the present invention has both the direction change function and the slurry delivery function, small size, light weight, novel and simple mechanism, low manufacturing cost, and convenient installation; the inner through hole is large, and can transport cement slurry and cement. Various curing materials for mortar, cement slurry, and concrete expand the range of curing materials for mixing piles.

Description

technical field [0001] The invention relates to a stirring pile driver, in particular to a built-in integrated water joint direction-changing mechanism for a single-power, synchronous two-way stirring pile driver. Background technique [0002] In the construction of mixing piles in railway, highway, construction, municipal, water conservancy, and port projects, the pile forming method of the mixing pile machine usually adopts the single-direction rotating drilling and stirring of the drill bit, and the construction method of pile formation is very prone to occurrence of slurry and clogging during construction. drill phenomenon, and the efficiency is low, and the quality is not easy to guarantee. There are literatures that use double motors and double drill pipes for bidirectional drilling and mixing, although the drilling efficiency and pile quality are improved, but the pile driver needs to be modified or remanufactured, the installation is complicated, and the cost of pile...

AI Technical Summary

Problems solved by technology

[0002] In the construction of mixing piles in railway, highway, construction, municipal, water conservancy, and port projects, the pile forming method of the mixing pile machine usually adopts the single-direction rotating drilling and stirring of the drill bit, and the construction method of pile formation is very prone to occurrence of slurry and clogging during construction. Drilling phenomenon, and low efficiency, quality is not easy to guarantee

There are literatures that use dual motors and double drill pipes for bidirectional drilling and mixing, although the drilling efficiency and pile quality are improved, but the pile driver needs to be modified or remanufactured, the installation is complicated, and the cost of pile driver modification and equipment usage is high

[0003] like figure 1 As shown, the water joint 12 of the existing CN200810052384.6 patent technology is usually installed on the upper or lower part of the steering mechanism 13, the structure is complex, the manufacturing cost is high; the size is large, and the installation is inconvenient. figure 1 Please refer to the embodiment of the present invention part for other symbols in , and the same components have the same symbols

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