JPH049439U

JPH049439U -

Info

Publication number: JPH049439U
Application number: JP4989190U
Authority: JP
Priority date: 1990-05-15
Filing date: 1990-05-15
Publication date: 1992-01-28
Anticipated expiration: 2005-01-25
Also published as: JPH072689Y2

Description

[Brief explanation of the drawing]

第１図は、本考案に係る地中掘削機の正面図、
第２図は、掘削装置の歯車伝達機構を示す縦断面
図、第３図イは、第１図の−線断面図、第３
図ロは、デイスクカツタの一部拡大正面図、第４
図は、本考案の地中掘削機による掘削溝孔の平面
図、第５図は従来の掘削溝孔の平面図である。１……地中掘削機、２……切削刃、３，９，２
０ｂ，２８，２９，３２……回転軸、４……デイ
スクカツタ、４ａ……歯、５……ケーシング、６
……サイドビツト、７……回転駆動源、８……掘
削装置、１０……鎖歯車、１１……鎖、１２……
連結フレーム、１３……リバース管、１４……セ
ンターケーシング、１４ａ……センタービツト、
１５……リバースホース、１６……減速機、１７
……出力軸、１８，２１，２２，３１……かさ歯
車、２０ｃ……ウオーム歯車、１９，２０，２０
ａ，２０ｄ，２０ｅ……平歯車、２３，２４，２
６，２６ａ，２７……平歯車、２７ａ，３０……
平歯車、２５……掘削孔、３３……孔、Ａ，Ｂ…
…掘削溝孔。 FIG. 1 is a front view of an underground excavator according to the present invention;
Fig. 2 is a vertical sectional view showing the gear transmission mechanism of the excavation rig, Fig. 3 A is a sectional view taken along the - line in Fig. 1, and Fig. 3
Figure 4 is a partially enlarged front view of the disk cutter.
The figure is a plan view of a trench excavated by the underground excavator of the present invention, and FIG. 5 is a plan view of a conventional trench hole. 1...Underground excavator, 2...Cutting blade, 3,9,2
0b, 28, 29, 32...Rotating shaft, 4...Disc cutter, 4a...Teeth, 5...Casing, 6
... Side bit, 7 ... Rotation drive source, 8 ... Drilling equipment, 10 ... Chain gear, 11 ... Chain, 12 ...
Connection frame, 13... Reverse pipe, 14... Center casing, 14a... Center bit,
15...Reverse hose, 16...Reducer, 17
...Output shaft, 18,21,22,31...Bevel gear, 20c...Worm gear, 19,20,20
a, 20d, 20e... spur gear, 23, 24, 2
6, 26a, 27... Spur gear, 27a, 30...
Spur gear, 25...Drilling hole, 33...Hole, A, B...
...excavation trench.

Claims

[Claims for Utility Model Registration] A disk cutter having a cutting blade on its outer periphery and attached to a horizontal rotating shaft; a casing extending vertically on the side surface of the disk cutter and pivotally supporting the rotating shaft of the disk cutter; An excavating device having a side bit located at the tip of the casing and located slightly below the lower end cutting blade of the disc cutter, and a rotational drive source disposed at the rear end of the casing are installed side by side. However, in an underground excavator for earth retaining walls in which adjacent disc cutters and adjacent side bits are rotated in opposite directions, the rotational force transmission structure for rotating the disc cutter is divided into two branches, and the rotational force of one of the two branches is transmitted. The transmission is transmitted from the inside of the casing to a rotating shaft for a chain gear provided outside, a chain gear is provided on the rotating shaft for the chain gear, and teeth for attaching a chain are provided on the outer periphery of the disc cutter. An underground excavator characterized by a chain wrapped around a disc cutter.