Drill rod rotation driving mechanism of cement soil mixing pile driver

A technology of cement-soil mixing pile and rotary drive, which is applied to driving devices for drilling in wellbore, earth-moving drilling, sheet pile walls, etc. The effect of uniformity

Active Publication Date: 2015-10-28
周兆弟
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above scheme solves the problem that the drill pipes of the existing cement-soil mixing pile machine can only rotate in the same direction to a certain extent, this scheme needs to be equipped with multiple drivers, which undoubtedly increases the construction cost

Method used

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  • Drill rod rotation driving mechanism of cement soil mixing pile driver
  • Drill rod rotation driving mechanism of cement soil mixing pile driver
  • Drill rod rotation driving mechanism of cement soil mixing pile driver

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as Figure 1-6 As shown, the drill pipe rotation driving mechanism of the cement-soil mixing pile driver includes a drive box 1 with an inner cavity, and the drive box 1 is provided with at least one main drill pipe 2 arranged in a vertical direction. At least two auxiliary drill rods 3 are arranged on the outer side of the rod 2, and the main drill rod 2 is connected with a main drill rod driving structure 4 that can drive the main drill rod 2 to rotate in the circumferential direction. When the main drill pipe 2 rotates in the circumferential direction, it can drive at least one auxiliary drill pipe 3 and the main drill pipe 2 to rotate in the opposite direction synchronously and can drive the remaining auxiliary drill pipes 3 and the main drill pipe 2 to rotate in the forward direction synchronously. Structure 5, obvio...

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Abstract

The invention belongs to the technical field of construction equipment, and particularly relates to a drill rod rotation driving mechanism of a cement soil mixing pile driver. The drill rod rotation driving mechanism of the cement soil mixing pile driver solves the problem that stirring is uneven when an existing cement soil mixing pile driver is used for drilling. The drill rod rotation driving mechanism of the cement soil mixing pile mixer comprises a drive box with an inner cavity; the drive box is provided with at least one main drill rod arranged in the vertical direction; at least two auxiliary drill rods are arranged on the outer side of the circumference of the main drill rod; the main drill rod is connected with a main drill rod driving structure capable of driving the main drill rod to rotate in the circumferential direction; an auxiliary drill rod transmission structure is arranged between the main drill rod and the auxiliary drill rods. The drill rod rotation driving mechanism of the cement soil mixing pile driver has the advantages that a single driver can achieve homodromous and reverse-direction movement of the main drill rod and the auxiliary drill rods, so that stirring uniformity is improved; drill rod bodies can axially stretch out and draw back and can axially slide while rotating circumferentially, the phenomenon of being unable to drill is not prone to happening, the perimeter of the cross section of a cement soil mixing pile after construction is increased, and the anti-pulling capacity of the cement soil mixing pile is improved.

Description

technical field [0001] The invention belongs to the technical field of construction equipment, and in particular relates to a drilling rod rotation driving mechanism of a cement-soil mixing pile driver. Background technique [0002] The cement-soil mixing pile is a method for reinforcing the low foundation of saturated soft clay. It uses cement as the curing agent, and through a special mixing machine, the soft soil and the curing agent are forced to mix deep in the foundation. A series of physical and chemical reactions between them make the soft soil harden into a high-quality foundation with integrity, water stability and certain strength. Common pile drivers for cement-soil mixing piles usually use multiple drill pipes to work at the same time to drill holes. Most of the existing drill pipes are driven by one or more drivers to rotate in the same direction. At this time, there are many shortcomings in the drilling method. For example, the stirring is not uniform enough,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/46E21B4/16
Inventor 周兆弟
Owner 周兆弟
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