JPH0738253U - Excavator tip tool - Google Patents

Abstract

(57) [Summary] [Purpose] A power shovel is used to excavate horizontal holes for small-diameter pipes in riverbeds. [Structure] An excavation unit is suspended at the beam end of a power shovel instead of the bucket, and an auger of the unit is horizontally rotated.

Description

[Detailed description of the device]

[001]

[Industrial application range]

 The present invention relates to a drilling unit that is connected to a beam tip of an excavator, particularly a power shovel, to drive an auger laterally, that is, horizontally.

[002]

[Prior art]

 Conventionally, at the bottom of rivers, ditches, etc., to install water and sewer pipes, especially small-diameter pipes, from one bank to the other, tap steel sheet piles etc. A means of removing the steel sheet pile by blocking the dam and excavating a groove for burying a small-diameter pipe on the bottom of the river with a power shovel, and then laying a small-diameter pipe and then backfilling the groove. It was

[003]

[Problems to be solved by the device]

 However, the above-mentioned means requires a great deal of cost, labor, time, etc., and blocking a river or the like also causes inconvenience in multiple directions. Excavate the riverbed over the other bank only by the operation from.

[004]

[Means for Solving the Problems]

 In the tip tool of an excavator, the excavator unit, which is attached instead of the bucket of the power shovel, supports the socket that houses the auger and is fixed to the main body, the nut, and the other end of the socket is continuous. The unit is composed of a speed reducer and a hydraulic motor that drives the speed reducer.

[0095]

【Example】

 In Fig. 1, a small-diameter pipe (not shown) is buried almost horizontally from one bank side to the other bank side, but a vertical pile is installed on the one bank side to reach below the river bottom by a power shovel. . The bucket located at the tip of the beam of the power shovel is removed, and the excavation unit according to the present invention is installed in its place.

That is, as shown in FIGS. 3 and 4, the excavation unit forming the tip tool of the excavator is composed of a box-shaped main body (10) containing a hydraulic motor and a speed reducer, and has two upper end sides. It is hung from the tip of the beam of the power shovel shown in FIGS. 1 and 2 through a pin (not shown) in each mounting hole (11). The hexagon socket socket 12 having a hexagonal socket located substantially at the center of the front wall of the body 10 is a flange fixed to the body 10 by connecting the auger 13 shown in FIG. 1 with a pin. The socket (12) is supported by a seal (15), and the other end of the socket (12) is fastened to the inner wall of the book (10) by a nut (16) to be attached to the drive shaft (17) of the speed reducer. It is firmly connected via the key.

The pressure oil sent by the power shovel rotates the hydraulic motor, and decelerates and rotates the auger (13) through the speed reducer to perform horizontal excavation. The auger (13) is added to the desired excavation. Reach length For horizontal excavation by the auger (13), an electronic level can be provided on the main body (10) and operated by the value digitally displayed on the power shovel.

The depth of the vertical shaft is determined by the horizontal excavation position of the river bottom, and the width is the lateral width of the excavation unit, that is, from the tip of the socket (12) to the rear wall of the main body (10). The length of the auger (13) is added to the length, and during this period, the worker replenishes the auger (13). However, since the front wall width (L) of the main body (10) for attaching the hydraulic motor to the side wall of the speed reducer becomes long, the unit (18) shown in Fig. 5 in which the hydraulic motor and the speed reducer are arranged in a straight line. Although (L) can be shortened by using ▼, since the unit (18) has a longer depth, both units (18) are selected according to the work purpose.

[0109]

【effect】

 With the above configuration, the hydraulic power source of the power shovel can be used, horizontal excavation can be performed by simply disposing the excavation unit instead of the bucket at the boom end, and thus, there is no need for a river weir, and also for buildings, etc. It is a tip tool for excavators that can arrange small-diameter pipes without digging up the lawn of a golf course, regardless of the obstacles of. It should be noted that vertical excavation with an auger is also possible.

[Brief description of drawings]

[Fig.1] Riverbed excavation

FIG. 2 shows a perspective view of a power shovel.

FIG. 3 shows a right side view of the excavation unit.

FIG. 4 shows a front view of a drilling unit.

FIG. 5 shows another embodiment of a drilling unit.

[Explanation of symbols]

1, one bank side of river 2, other bank side of river 3, power shovel 4, vertical shaft 5, beam 6, bucket 7, excavation unit 8, hydraulic motor 9, speed reducer 10, unit body 11, mounting hole 12, hexagon Socket with hole 13, Auger 14, Flange 15, Seal 16, Nut 17, Drive shaft 18, Other drilling unit body

Claims (1)

[Scope of utility model registration request] 1. A tip tool of an excavator, comprising a socket for accommodating an auger, an excavation unit attached in place of a bucket of a power shovel, a flange and a nut for supporting the socket and fixing the socket to a main body, and the other end of the socket. A tip tool for an excavator, which comprises a reduction gear to be connected and a hydraulic motor for driving the reduction gear.