Single-power bidirectional stir head for soft foundation and mixing pile machine having the same

A technology of weak foundation and mixing head, which is applied in the direction of sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of difficult quality assurance, high cost, high cost, etc., and achieve the goal of ensuring the quality of the pile body, small size and long life Effect

Active Publication Date: 2009-09-02
徐玉杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 driver usually uses the drill bit to rotate in one direction to drill and mix. Pile, there is a slurry phenomenon, the efficiency is low, and the quality is not easy to guarantee
Recent literature shows that the use of double motors and double drill rods for bidirectional drilling and mixing improves the drilling efficiency and pile quality, but the pile machine needs to be modified or remanufactured, and the cost is high
[0003] Existing single-direction rotary drilling and mixing of pile drivers has low efficiency and difficult quality assurance
However, double motors and double drill pipes need to be modified or remanufactured, which is expensive

Method used

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  • Single-power bidirectional stir head for soft foundation and mixing pile machine having the same
  • Single-power bidirectional stir head for soft foundation and mixing pile machine having the same
  • Single-power bidirectional stir head for soft foundation and mixing pile machine having the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 A set of 3-layer forward and reverse stirring heads

[0026] like figure 1 As shown, the single-power two-way multi-layer mixing head for weak foundations of the embodiment of the present invention includes a coupling disc 1 connected to the drill rod driven by the motor of the pile driver, an upper blade cover 31 located below the coupling disc 1 and a The front drill bit 22 also includes an epicyclic train mechanism 40 that changes the direction of rotation of the drill bit blades in different layers. The upper end of the transmission shaft of the epicyclic gear train mechanism 40 links to each other with the upper blade cover 31, and the lower end of the drive shaft links to each other with the lower blade cover 21; 31. A group of third-layer drill blade blades 27, first-layer drill blade blades 23 and second-layer drill blade blades 26 are respectively welded on the lower blade cover 21 and the driven gear 11 of the bevel gear epicyclic gear train mechanis...

Embodiment 2

[0037] Example 2 Two sets of 4-layer forward and reverse stirring heads

[0038] like Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the two sets of bevel gear epicyclic gear trains 40 are connected with the connecting sleeve 25, and there are no drill blades welded on the upper blade sleeve 31, and there are 4 blades from bottom to top. The blade of the drill bit achieves the combined purpose of positive and negative rotation. Specific implementation and figure 1 Same, no more details.

[0039] Certainly, the combination of multiple bevel gear epicyclic gear trains 40 can be used to achieve multiple positive and negative combinations.

[0040]The above-mentioned embodiments take the bevel-toothed epicyclic gear train mechanism as an example, of course, a straight-toothed epicyclic gear train mechanism can also be used.

[0041] The single-power two-way multi-layer mixing head of the present invention is installed on the existing agitat...

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PUM

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Abstract

The invention discloses a single-power two-way multi-layer stirring head for soft foundation and a stirring pile driver with a single-power two-way multi-layer stirring head. The upper end of the drive shaft of the epicyclic gear train mechanism that changes the rotation direction of the drill blades of different layers is connected, and the lower end of the drive shaft is connected with the lower blade sleeve; on the upper blade sleeve, the lower blade sleeve and the driven gear of the epicyclic gear train mechanism, at least A set of drill blades; the epicyclic gear train mechanism is connected with a reverse thrust plate which is parallel to the drill blades, making the epicyclic gear train into a fixed axis gear train and inserted into the surrounding soil of the pile. Under the condition of not changing the structure and operation method of the original mixing pile driver, the forward and reverse bidirectional drilling and mixing of the pile driver bit can be realized; the speed and quality of pile formation can be improved.

Description

technical field [0001] The invention relates to a stirring head and a stirring pile driver, in particular to a single-power two-way multi-layer stirring head for weak foundations and a stirring pile driver with a single-power two-way multi-layer stirring head. Background technique [0002] In the construction of mixing piles in railway, highway, construction, municipal, water conservancy, and port projects, the pile driver usually uses the drill bit to rotate in one direction to drill, stir, and form piles. Slurry phenomenon occurs, the efficiency is low, and the quality is not easy to guarantee. Recent literature has shown that the use of double motors and double drill rods for bidirectional drilling and mixing has improved drilling efficiency and pile quality, but the pile machine needs to be rebuilt or remanufactured, which is costly. [0003] The existing pile driver unidirectionally rotates for drilling and stirring, which has low efficiency and is difficult to guarante...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D7/00
Inventor 徐玉杰任作伟
Owner 徐玉杰
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