Pile machine

Abstract

A pile machine comprises a machine base (600), a drill rod system (610), and a holding type pressing system (620). The drill rod system (610) is arranged on the machine base (600) and comprises a lengthening rod mechanism (613). The lengthening rod mechanism (613) comprises at least one lengthening rod (6131). The holding type pressing system (620) is used for driving the drill rod system to moveup and down. The pile machine is characterized by further comprising a storage rack (630), a grapping mechanism (640) and a driving mechanism (650). The storage rack (630) is used for storing the lengthening rods (6131). The grabbing mechanism (640) is arranged on the storage rack (630) and used for grabbing the lengthening rods (6131), and the output end of the driving mechanism (650) is in transmission connection with the grabbing mechanism (640). The driving mechanism (650) is used for driving the grabbing mechanism (640) to move to a position above the lengthening rod mechanism (613) and connecting the grabbed lengthening rods (6131) to the lengthening rod mechanism (613). Compared with the prior art, the pile machine can achieve quick rod connection and further improve the efficiency.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a pile driver. Background technique [0002] Pile driver is a kind of mechanical equipment that can drive the drill bit to drill underground to break the rock and soil. While the drill bit is drilling, grouting is used to improve the soil. The improved soil can be used for forming mixing piles, composite piles, etc. [0003] The pile driver includes a multi-section drill pipe and a drill bit. The drill pipe and the drill bit are axially provided with a conveying channel for the passage of the concrete slurry. When the drill bit reaches a certain depth, if the length of the drill pipe is not enough, it needs to be increased or extended. Long drill rod, make drill rod extend, just can continue to drill down. Therefore, in order to ensure normal grouting and drilling operations, the extension technology of the drill pipe is very important. In the prior art, there ...

AI Technical Summary

Problems solved by technology

However, this drill pipe structure has the following problems: the sealing performance of the joints of each telescopic drill pipe is poor, and the telescopic section has a large volume, a large amount of soil squeezed, difficulty in extending underground, and large resistance

But there are following disadvantages: 1, because the joint is threadedly connected with the length adjusting rod, therefore, the pin hole on the joint is difficult to align; 2, the precision requirement of the pin hole and the pin is high; 4. The length adjustment rod is a hollow structure, and its wall thickness is generally thin. Since the joint and the length adjustment rod are connected by threads, the length adjustment rod needs to be provided with internal threads, so that the wall thickness of the joint between the length adjustment rod and the joint Thinner, lower connection strength; 5. Due to the threaded connection between the joint and the length adjustment rod, the shape of the connection between the joint and the length adjustment rod must be limited to a circle, so there are higher requirements for shape and processing accuracy; 6. The pin may There will be slurry leakage; 7. When the connection structure is used for a rotary drilling rig, shearing will occur at the pin, which will cause the pin to break

[0007] And when the above-mentioned plug-in connection structure is used to extend the drill pipe, it is necessary to put the length adjustment rod prepared in advance on the pile driver, and then connect the length adjustment rod to the power mechanism. In this process, due to the relatively large size of the length adjustment rod Long and heavy, it takes a long time to move the length adjustment rod to the pile driver and then align and connect with the power mechanism, which affects the overall working efficiency of the pile driver

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