JPH0723094U - Surveying and boring machine - Google Patents

Abstract

(57) [Summary] [Purpose] To increase work efficiency by combining the boring function for drilling and the boring function for investigation. [Structure] A boring rod for drilling 7 mounted on a feed table 2 which moves forward and backward on a main body base 1 and a movable base 3 which moves left and right on the feed table 2 in a direction intersecting the forward and backward directions. It comprises a rotary drive drifter 4 for rotationally driving and a survey boring head mounted on the same movable base 3 for rotationally driving a survey boring rod.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a survey and combined boring machine capable of performing survey boring without replacing all of the boring machines. More specifically, in order to rotationally drive a rotary drive head (drifter) that rotationally drives a boring rod for excavating a drilling hole into which an inspection sampler is inserted, and a survey boring rod that is inserted into the drilling hole. This is a boring machine that also serves as a survey and has a swivel head that can be freely exchanged.

[0002]

[Prior art]

 Before the anchor work, drainage work, soil improvement work, etc., the soil quality will be investigated. Survey boring is conducted for soil survey. Such survey bowling is conducted in two stages. First, excavate to the surveyed depth with a normal excavator. The boring rod for boring used for this excavation is pulled out from the boring to clear the boring machine for boring from the work area. Next, insert the survey boring rod into the drilled boring rod, and rotate the survey boring rod with a swivel head etc. to rotate the survey boring rod with a sampler provided at the beginning of the survey boring rod. Take a sample of.

In order to efficiently collect such a sample, a percussion drill is used as a boring machine for boring. Percussion drills are often used in this type of work because they can give impact vibrations to boring rods for drilling and enable rapid drilling.

Conventionally, a set of percussion drills used for rapid drilling was removed from the work area and a drilling machine for investigation was set again. For this reason, two types of boring machines were required separately, and it took a lot of time to prepare for using both machines alternately.

[0005]

[Problems to be solved by the device]

 This invention was made under the technical background as described above, and achieves the following objects.

An object of the present invention is to provide a surveying and boring machine having a high work efficiency by having a boring function for drilling and a boring function for surveying.

Another object of the present invention is to provide a low-priced survey / boring machine that has both a boring function for drilling and a boring function for survey.

[0008]

[Means for Solving the Problems]

 This invention adopts the following means in order to achieve the above object.

The surveying and boring machine of the present invention comprises: a main body base (1); a feed table (2) which moves forward and backward in the drilling direction on the main body base (1); and on the feed table (2), A movable base (3) that moves left and right in a direction intersecting the forward and backward directions of the feed table (2), and a rotary drive for rotationally driving a boring rod (7) for drilling mounted on the movable base (3). Drilling head (6) mounted on the same movable base (3) on which the rotation driving drifter (4) is mounted, and the research drilling head (6) for rotationally driving the research drilling rod. This is a boring machine for research and combined use which consists of and.

[0010]

[Operation] The surveying boring machine of the present invention advances the boring rod for boring while advancing and retracting the feed table in the direction of excavation, and drives the boring rod for boring to rotate by the rotary drive drifter. Drill with. After the drilling, the movable base on the feed table is moved to simultaneously move the rotary drive drifter and the survey boring head, and the positions of the rotary drive drifter and the survey boring head are exchanged. Next, the survey boring head mounted on the same feed table was inserted into the drilled hole, and the survey boring rod was rotationally driven to sample the sample in the survey area with the sampler provided at the beginning of the survey boring rod. Take a sample.

[0011]

【Example】

 (Embodiment 1) Next, an embodiment of the present invention will be described. 1 to 3 show a first embodiment of the surveying and boring machine of the present invention. The main body base 1 is installed on the ground surface of the survey area. The feed table 2 is provided on the main body base 1 so as to be able to move forward and backward in the drilling direction (left-right direction in the drawing). The feed table 2 is moved forward and backward by a chain mechanism 5 guided by a guide member of the main body base 1 and driven by a drive device.

On the feed table 2, there is provided a movable base 3 that moves left and right in a direction intersecting the forward and backward directions of the feed table 2, for example, in a direction orthogonal to the forward and backward directions of the feed table 2. On the same movable base 3, a rotary drive drifter 4 for rotationally driving a boring rod 7 for drilling and a survey boring head 6 for rotationally driving a survey boring rod (not shown) are mounted. There is.

The rotary drive drifter 4 used here is a known percussion type rotary drive device used for a boring machine for rapid drilling, and is a grinding machine gripped by the rotary drive unit via the rotary drive unit. The hole boring rod 7 is provided with a striking device that gives a striking impact. The boring rod 7 for drilling is connected to the connecting portion 8 of the rotary driving unit of the percussion type rotary driving device, and the boring rod 7 for drilling is impacted from the rear end side. A plurality of boring rods 7 for drilling are used by being connected one after another. Various bits are attached to the tip of the boring rod 7 for drilling at the top.

As the survey boring head 6, a swivel head that constitutes a rotary drive unit of a known survey boring machine is used. The swivel head has a grip portion 9, and the grip portion 9 grips the survey boring rod. In front of the main body base 1, there are provided a boring rod 7 for drilling and a chuck 10 for holding and fixing a boring rod for investigation (not shown). When the grip is released, the chuck 10 can take into account the movement of the boring rod 7 for boring and the boring rod for inspection in the boring direction.

FIG. 4 is an enlarged view of an essential part showing the relationship between the feed table 2 and the movable base 3 that moves left and right on the feed table 2. In the figure, the positional relationship between the rotary drive drifter 4 and the survey boring head 6 is shown. Is indicated by a dotted line and a solid line. A guide member 11 having a guide surface 11a is provided on the feed table 2 in a direction perpendicular to the paper surface. The guide member 11 has a movable base 3 fixed by being supported by movable legs 12 which are guided by an inner surface 11a. The movable leg 12 is driven by a hydraulic cylinder 20 provided on the feed table 2. The piston of the hydraulic cylinder 20 is attached to the movable leg 12. As described above, the rotary drive drifter 4 and the survey bowling head 6 are arranged side by side on the movable base 3 with a distance D as shown in FIG.

(Operation of First Embodiment) Next, the operation of the first embodiment will be described. The feed table 2 is moved forward and backward in the direction of excavation, and the boring rod 7 for drilling, which is connected to the rotary drive drifter 4, is rotationally driven and excavated while applying forward force. As the digging progresses, the rotation is stopped and the drilling boring rod 7 is gripped by the chuck 10, the connection by the connecting portion 8 is canceled, the rotary drive drifter 4 is retracted together with the feed table 2, and the boring rod for subsequent drilling is removed. 7 is carried into the supply line, and the subsequent boring rod 7 for drilling is screwed to the boring rod 7 for drilling at the front, and the conventional excavation is continued.

When the excavation reaches a predetermined depth, all the boring rods 7 for boring are extracted in the reverse order of the boring work. The feed table 2 is retracted to the retracted position, guided by the guide member 11 on the feed table 2, and the movable base 3 is moved. Seen from the rear side, move the movable base 3 in FIG. 5 to the right. The moving distance of the movable base 3 is fixed, and is set to the distance D shown in the figure as a stroke of the movement. The center of the rotary drive lifter 4 before moving is indicated by C ₁ . By moving the movable base 3 to the right by the distance D, the center C ₂ of the survey boring head 6 coincides with the center C ₁ of the rotary drive drifter 4 before the movement.

The survey boring rod is carried into the machine center, and the rear end of the first survey boring rod is grasped by the grasping portion 9 of the survey boring head 6, and the feed table 2 is moved forward, Move the boring rod into the already drilled hole. As in the case of boring rod 7 for drilling, multiple boring rods for research are sequentially added, and the leading boring rod for research is inserted to the front end of the drilling hole.

The hydraulic motor 13 is driven and the survey boring head 6 is driven to rotate by the survey boring head 6, and a sample in the survey area is sampled by a sampler provided at the head of the survey boring rod. After collecting the sample of the specified depth, pull out only the sampler from the drilled hole. Since such a sampler-only pulling-out means is known, its description is omitted here. The sampler can also be extracted with the survey bowling rod by pulling out the survey bowling rod.

Pull out all the survey boring rods, move the entire machine, move the movable base 3 to start drilling at the next predetermined depth, and immediately after that, start survey boring again. You can

(Other Embodiments) FIGS. 1 to 3 show the case where the machine is installed in a horizontal digging state, but this kind of machine is generally designed so that it can also be installed vertically. .

[0022]

[Effect of device]

 According to this invention, the following effects are exhibited. Immediately after drilling, drilling for survey can be performed. Also, the machine can be inexpensive because two feeders and frames can be shared.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of a survey and boring machine of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a side view of FIG. 1.

FIG. 4 is an enlarged front view of a main part showing the relationship between the feed table 2 and the movable base 3.

FIG. 5 is a left side view of the main part of FIG.

[Explanation of symbols]

 1 ... Main body base 2 ... Feed table 3 ... Movable base 4 ... Rotation drive drifter 7 ... Drilling boring rod

Claims (1)

[Scope of utility model registration request] 1. A main body base (1), a feed table (2) which advances and retracts in the boring direction on the main body base (1), and an advancement of the feed table (2) on the feed table (2). A movable base (3) which moves left and right in a direction intersecting the backward direction, and a rotary drive drifter (4) mounted on the movable base (3) for rotationally driving a boring rod (7) for drilling, A survey boring head (6) for rotatively driving a survey boring rod, which is mounted on the same movable base (3) on which the rotary drive drifter (4) is mounted. Combined boring machine.