JPH0617595A - A horizontal hole machine equipped with a water outlet - Google Patents

Abstract

(57) [Abstract] [Purpose] Underground sewage, water supply, telephone cables, etc.
Improves the performance of a side-hole excavator used to dig a side-hole in various crossing works. [Structure] A cylindrical tuyere 16 is arranged via a partition wall 15 in the front part of a tube body 14 where a sealing material 12 is arranged and pushed in a lateral hole 11, and a rotary cutter is provided in front of the cylindrical tuyere 16. Two
5 is a horizontal hole machine, in which a water feed passage 41 from a water pump 40 is branched into two, one of which is communicated with a first discharge port 43 of a partition wall 15 via a first water feed passage 42 and the other of which Through the second water passage 44 to the pipe body 14 near the partition wall 15.
To the second discharge port 45 of the peripheral wall of the
Flow control valves 46 and 47 in the third and second water passages 44, respectively.
And a drainage channel 48 communicating with the outside of the lateral hole 11 is provided in the lower portion of the partition wall 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal hole excavator used for digging a horizontal hole in underground burial and various crossover works such as sewerage, water supply, and telephone cable.

[0002]

2. Description of the Related Art A small-diameter horizontal hole excavator for a Hume pipe in which a rock drill does not go into a hole and which has a rotary cutter at the front end of a pipe body is described in Japanese Patent Publication No. 61-56391. .

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a horizontal hole excavator having a higher efficiency than the conventional horizontal hole excavator.

[0004]

A means for solving the problems will be described with reference to the drawings. The horizontal hole excavator equipped with the water discharge port according to the present invention has a tubular body 1 in which a sealing material 12 is arranged and pushed into a horizontal hole 11.
4 is a horizontal hole excavator in which a cylindrical tuyere 16 is arranged in front of the cylindrical tuyere 16 through a partition wall 15 and a rotary cutter 25 is arranged in front of the cylindrical tuyere 16, and a water supply passage 41 from a water pump 40 is provided.
Is divided into two, and one is communicated with the first discharge port 43 of the partition wall 15 via the first water supply passage 42 and the other is connected with the peripheral wall of the pipe body 14 near the partition wall 15 via the second water supply passage 44. Of the first water supply passage 43 and the second water outlet 43
Flow control valves 46 and 47 are provided in the water supply passage 44, and a drainage passage 48 that communicates with the outside of the lateral hole 11 is provided below the partition wall 15.

[0005]

[Embodiment] The sealing material 12 is placed in the lateral hole 11 provided in the land 10.
A cylindrical tuyere 16 is arranged in front of the tubular body 14 through which the wall is arranged and pushed, and a rotary cutter 25 is arranged in front of the cylindrical tuyere 16 to form a horizontal hole machine. Has been done.

The water supply passage 41 from the water pump 40 is branched into two, and one of them is connected to the first water supply passage 42 through the first water supply passage 42 to form the first partition wall 15
The second discharge port 4 on the peripheral wall of the pipe body 14 near the partition wall 15 is made to communicate with the discharge port 43 and the other through the second water supply passage 44.
5, and the 1st water supply path 43 and the 2nd water supply path 44
Flow control valves 46 and 47 are provided in each of them, and a drainage channel 48 communicating with the outside of the lateral hole 11 is provided below the partition wall 15.

When excavating hard rock / hard soil, water is sent only from the second discharge port 45 or from the second discharge port 45 and the first discharge port 43 to cool off the corners 8 while cooling the corners 8 with water. Is introduced into a drainage channel 48 together with water and taken out by a discharge pump 49.

A water-sealed differential planetary speed reducer 55 is arranged in the tuyere 16 on the front side of the partition wall 15, and the output shaft of a motor 56 arranged on the rear side of the partition wall 15 is passed through the partition wall 15 to form a water-sealed differential gear. It is connected to the input shaft 57 of the moving planetary speed reducer 55, and the rotation output part of the water-sealed differential planetary speed reducer is connected to the rotary cutter 25.

Since the water-sealed differential planetary speed reducer 55 is provided inside the tuyere 16, the whole structure can be made compact. In addition,
In the figure, 57 is an input shaft, 58 is a double type planetary gear, and a plurality of them are radially held by a rotating gear frame 59, and have a first gear 61 and a second gear 62. 60 is a partition wall 15
An inner fixed gear fixed to the second gear 62 meshes with the inner fixed gear. Reference numeral 63 denotes a sun gear fixed to the input shaft 57, which meshes with the first gear. Reference numeral 64 denotes an inner gear that rotates together with the rotary cutter 25. Reference numeral 65 is a bearing interposed between the input shaft 57 and the inner fixed gear 60, and 66 is a bearing interposed between the inner fixed gear 60 and the inner gear 64.

A frusto-conical crusher cone 70 which rotates with the rotary cutter 25 is arranged in the tuyere 16 in a rearward spread, and the frusto-conical crusher cone 70 is arranged with respect to the central axis P-P of the cylindrical tuyere 16. The central axis Q-Q is eccentric, and the external gear-shaped uneven portion 7 is provided at the rear end of the crusher cone 70.
Immediately after the external gear-shaped concave-convex portion 71, the internal gear-shaped convex-concave portion 72 and a guide cone 73 consisting of a truncated conical portion continuous to the front side in front of the concave-convex portion are arranged and fixed in the cylindrical tuyere 16. There is.

The crusher cone 70 is an inner gear 6
It is fitted and fixed to the outside of 4. The crusher cone 70 rotates together with the rotary cutter 25,
A large rock among the rocks crushed by is crushed as if it is sandwiched by the uneven portion 71 that is eccentrically rotated when passing between the uneven recess 72 and the uneven portion 71. A cutter unit 1 is constructed by rotatably supporting a substantially conical body 2 on a conical body shaft 9 and projecting a number of corners 8 on the conical surface of the conical body 2. And the front end of the locus formed when each cutter unit 1 rotates is positioned on a forwardly convex tapered surface S that is substantially orthogonal to the central axis P-P of the cylindrical tuyere. Is.

Reference numeral 27 denotes a substrate of the rotary cutter 25, which is fixed to the inner gear 64. Reference numeral 28 denotes an abutment fixed to the substrate 27, and the cone shaft 9 is supported by the abutment 28. Reference numeral 29 is a cylindrical cover of a rotary cutter, and a front surface thereof is provided with a window hole 30 corresponding to the position of each cutter unit 1 so that a tapered surface S is formed on the front side of the cover 29.

When the rotary cutter 25 is rotated while pressing the tubular body 14 with the propulsion jack 17 (with the Hume tube 13 interposed if necessary), the conical body 2 rotates around the conical body axis 9.
Rotates and scrapes the bedrock by corner 8.

[0014]

According to the present invention, excavation can be performed extremely efficiently.

[Brief description of drawings]

FIG. 1 is a side view of a construction site.

FIG. 2 is a partially omitted side view of the excavator.

FIG. 3 is another partially omitted side view of the excavator.

FIG. 4 is an abbreviated side view of the lower half of a vertically sealed water-sealed differential planetary speed reducer.

FIG. 5 is a side view of a cutter unit.

FIG. 6 is a front view of a rotary cutter.

FIG. 7 is a view taken along line AA of FIG.

FIG. 8 is a front view with the BB cutting machine of FIG. 3 omitted.

[Explanation of symbols]

 1 Cutter Unit 2 Cone 8 Corner 9 Cone Axis 10 Land 11 Horizontal Hole 12 Sealing Material 13 Fume Tube 14 Tube 15 Partition Wall 16 Cylindrical Tuyere 17 Propulsion Jack 25 Rotating Cutter 27 Substrate 28 Abutment 29 Cover 30 Window Hole 40 Water pump 41 Water channel 42 First water channel 43 First outlet 44 Second water channel 45 Second outlet 46 First flow rate control valve 47 Second flow rate control valve 48 Drainage channel 49 Discharge pump 55 Water-sealed differential planet Speed reducer 56 Motor 57 Input shaft 58 Double type planetary gear 59 Gear frame 60 Inner fixed gear 61 First gear 62 Second gear 63 Sun gear 64 Inner gear 65 Bearing 66 Bearing 70 Crusher cone 71 Concavo-convex portion 72 Convex concave portion 73 Guide cone P- P Central axis of tuyere Q-Q Central axis of crusher cone S-ta Par surface

Claims (1)

[Claims] 1. A partition wall (1) is provided at a front portion of a tubular body (14) where a sealing material (12) is placed and pushed in a lateral hole (11).
5) A horizontal boring machine in which a cylindrical tuyere (16) is disposed via a rotary cutter (25) in front of the cylindrical tuyere (16), and a water supply passage from a water pump (40) (41) is branched into two, and one of them is divided into the partition wall (15) through the first water supply channel (42).
Of the pipe (1) near the partition wall (15) while communicating with the first discharge port (43) of the other through the second water passage (44).
4) communicating with the second discharge port (45) of the peripheral wall, and
Flow control valves (46, 47) are provided in the water supply passage (43) and the second water supply passage (44), respectively, and a drainage passage (48) communicating with the outside of the lateral hole (11) is provided in the lower part of the partition wall (15). A horizontal hole excavator equipped with a water discharge port.