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Excavator for underground excavating, rotary excavator and underground excavating method

An excavating device, a technology of a rotating body, applied to drilling equipment and methods, driving devices for drilling in boreholes, earthwork drilling and mining, etc.

Active Publication Date: 2009-07-15
古木一功
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, there is also an excavation device that digs holes with a spiral cone, the so-called auger, but the auger is not suitable for excavating hard foundations such as rocks, gravel, and concrete, compared with the above-mentioned down-the-hole hammer.

Method used

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  • Excavator for underground excavating, rotary excavator and underground excavating method
  • Excavator for underground excavating, rotary excavator and underground excavating method
  • Excavator for underground excavating, rotary excavator and underground excavating method

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no. 1 approach

[0074] Figure 1 to Figure 9 It is a figure for demonstrating the 1st Embodiment of the excavation apparatus for underground excavations of this invention.

[0075] figure 1 It is a perspective explanatory view of the excavating device of the first embodiment viewed from the tip side; figure 2 for figure 1 An explanatory diagram of a longitudinal section of the excavating device shown; image 3 for figure 1 The illustrated exploded perspective explanatory view of the excavating device shows a disassembled state of the air tank part and the excavating bit part removed from the gas tank part. and, in image 3 In , illustration of the base side (upper side) of the air tank member 3 is omitted.

[0076] Figure 4 It is an explanatory side view showing the internal structure of the piston box part housed in the excavation bit part in a longitudinal section, by Figure 4 (a) to (d) show the state of the built-in piston moving up and down (forward and backward motion) in chr...

no. 2 approach

[0175] Figure 11 with Figure 12 The second embodiment of the excavating apparatus for underground excavation according to the present invention will be described.

[0176] Figure 11 It is an explanatory view of a longitudinal section of an excavating device according to a second embodiment, Figure 12 for Figure 11 The horizontal section of the gas guiding component shown is an explanatory top view showing the internal structure of the rotating body, which is the same as that described in Example 1. Figure 7 corresponding figure.

[0177] In addition, the same or equivalent parts as those of the first embodiment are denoted by the same symbols. In addition, descriptions of parts described in the first embodiment will be omitted, and differences will be mainly described.

[0178] In the above-mentioned first embodiment (refer to figure 2 with Figure 7 ), through the rotating body 40 to control the opening of the five peripheral separation holes 3a, 3b, 3c, 3d, 3e...

no. 3 approach

[0207] Figure 14 to Figure 16 A third embodiment of the excavation apparatus for underground excavation according to the present invention will be described.

[0208] Figure 14 It is an explanatory view of a longitudinal section of an excavating machine according to a third embodiment. Figure 15 (a) for and Figure 4 The same longitudinal sectional explanatory drawing shown in (a), Figure 15 (b) is a vertical cross-sectional explanatory view of another piston box member housed in the digging bit unit. Figure 16 for Figure 14 It is a perspective explanatory view of the fluid guide member disposed in the air tank unit of the excavator shown.

[0209] Next, the excavating device 1b will be described. In addition, the same or equivalent parts as those of the first and second embodiments are denoted by the same symbols. In addition, description of parts described in the first and second embodiments will be omitted, and differences will be mainly described.

[0210] (e...

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Abstract

An excavator for underground excavating arranged to perform excavating work with low vibration and low noise. A rotary excavator and an underground excavating method are also provided. The excavator (1) for underground excavating comprises a plurality of bits (42a, ...) having the outside diameter smaller than that of the excavator body (2) and advancing / retracting to / from the excavating side, piston case members (22b, ...) incorporating pistons (61) for applying a hitting force to respective bits (42a, ...) by the energy of working fluid, a section (30) for storing the working fluid being fed to respective piston case members (22b, ...), working fluid circulation passages (352) for allowing the working fluid being fed to respective piston case members (22b, ...) to pass, and a body of rotation (40) provided with a plurality of holes (4a, ...) for allowing the fluid storage section (30) to communicate with the circulation openings (3a, ...) of each working fluid circulation passage (352) in order to feed the working fluid from the fluid storage section (30) to the circulation openings (3a, ...) of the respective working fluid circulation passages (352).

Description

technical field [0001] The present invention relates to an excavating device for underground excavation, a rotary excavator, and an underground excavation method. [0002] Specifically, it relates to an excavation device for underground excavation, a rotary excavator, and an underground excavation method capable of excavating in a low-vibration and low-noise state. Background technique [0003] In the field of civil engineering or construction, an excavation device called a "down-the-hole hammer" is mainly used for excavation of hard foundations such as rocks, gravel, concrete, etc. A down-the-hole hammer drives an internal piston by supplying compressed air, and moves a hammer head at the tip up and down to perform excavation by such impact (for example, refer to Patent Document 1). [0004] Patent Document 1: Japanese Unexamined Patent Publication No. 9-328983 ( figure 1 ) [0005] In addition, there is also a so-called auger, which is an excavating device that digs a h...

Claims

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Application Information

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IPC IPC(8): E21B4/16E21B7/00
Inventor 古木一功
Owner 古木一功
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