JP2995382B2 - Rod mud remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod mud removing device for a ground surveying machine used in a ground survey.

[0002]

2. Description of the Related Art Conventionally, for investigation of the ground, a cone provided with various sensors has been attached to the tip of a rod, and the ground has been obtained by penetrating the ground with a predetermined force. However, since the above survey requires an accurate depth from the ground surface of the cone, an infrared sensor or a magnetostrictive sensor, etc., was installed close to the rod outer surface of the exposed portion of the rod above the ground, and the rod was placed underground. It is necessary to measure the penetration distance. However, there is no problem in the first measurement using a new rod, but since the second and subsequent times, there is mud on the outer surface of the rod that has been pulled up. Was not going to happen.

[0003]

However, it is very time-consuming and troublesome to remove the adhered mud manually before re-use when the measuring depth is deep. It was the cause of the decline.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a plate-like cleaner and a brush-like cleaner having a through hole of a rod as a center are attached to a frame of a ground surveying machine in two steps, thereby raising a rod. Occasionally, the rod outer surface is to be muddy.

[0005]

In order to achieve the above-mentioned object, the present invention is mounted on a frame of a ground survey machine,
And a brush-like cleaner and a plate-like cleaner disposed respectively on the upper and lower stages of the axis. The plate-like cleaner is formed by stacking a plurality of two types of plate-like elastic bodies having a rod through hole at the center thereof along the axis. The brush-like cleaner has a plurality of disc-like brushes having a shaft centered on one circle centered on the rod shaft, and a brush of a predetermined length in contact with the rod in a plurality of stages. It is characterized by being provided.

The two types of plate-like elastic members are a thin plate of a spring material and a rubber plate of a predetermined thickness, and spacers having holes larger than the diameter of the rod through hole are alternately sandwiched between the two elastic members. The plate-like elastic body is characterized in that a slit of a predetermined depth from the rod through hole to the outer periphery is cut.

The thin plate of the spring material and the rubber plate having a predetermined thickness are made of phosphor bronze and urethane rubber, respectively.

The plurality of disk-shaped brushes may be rod shafts.
The axes are arranged at equal angles on one circle centered on the heart ,
Further, the upper and lower stages are characterized in that the axes are respectively arranged between the axes.

[0009]

[Function] The plate-like cleaner scrapes off most of the mud on the outer surface of the rising rod.

A thin plate made of a spring material mainly removes a portion having mud resistance, and a rubber plate mainly removes a soft portion of mud.

The spacer secures a space for easily bending the plate-like elastic body.

When the rod passes through the rod through hole,
The slitted portion bends and passes in the elasticity change range.

Also, a bit having a diameter larger than the rod diameter can pass through, and a rod having a diameter smaller than the bit can be dropped.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. In this embodiment, as shown in FIG. 6, a case is shown in which a cone penetrating machine as a ground surveying machine is attached to the rear end of the vehicle, but it may be attached to the center of the vehicle, and the vehicle cannot travel. Sometimes mounted on a frame. In FIG. 6, reference numeral 1 denotes a cone penetrating machine, the structure of which is as shown in FIGS. The rod mud remover 10 of the present invention is attached to the frame 1a of the cone penetrating machine 1, and has a plate-like cleaner 11 below and a brush-like cleaner 12 above. However, depending on the case, the mounting may be reversed.

As shown in FIG. 4 (b), the rod 2 is a diagonal hydraulic cylinder 1b, 1 of four hydraulic cylinders 1b.
The chucks 1c and 1c are respectively attached to b, and the rods 2 gripped by the chucks 1c and 1c are alternately penetrated or pulled up. As shown in FIG. 1, the plate-like cleaner 11 is shown in FIG.
((B) is a longitudinal section), and two plate-like elastic members of a phosphor bronze thin plate 11b and three plate-like elastic members of a urethane rubber plate 11c having a predetermined thickness are provided in the body 11a. The cover 1 is loaded in a sandwich shape via the spacer 11d.
Covered with 1e. This cover 11e has 6
A mounting hole 11f is formed at a location, and the mounting hole 11f is mounted on the frame 1a of the cone penetrating machine 1 by bolting. The spacer 11d is provided with a hole having a diameter larger than the diameter of the rod through hole as shown by a broken line a in FIG. 1, and secures a space for easily bending the phosphor bronze thin plate 11b and the urethane rubber plate 11c.

In the phosphor bronze thin plate 11b and the urethane rubber plate 11c, five slits 11h having a predetermined depth from the rod through hole 11g to the outer periphery are cut,
When the rod 2 passes, the slitted portion bends due to elasticity, so that the rod 2 passes even if the rod through hole 11g is smaller than the lot diameter. Here, the use of a phosphor bronze thin plate is suitable for removing foreign substances such as mud, sand and stone while acting as a spring, and the urethane rubber plate is suitable for removing mud and muddy water. is there. Also, urethane rubber is excellent in friction resistance.
In FIG. 1, holes 11i are provided for dropping removed mud and the like out of the plate-like cleaner 11, and circular holes are formed in the phosphor bronze thin plate 11b and the urethane rubber plate 11c, and inner holes are formed in the spacer 11d. A release hole is provided.

FIGS. 2 and 3 (FIG. 2)
Is a plan view, and FIG. 3 is a vertical cross-sectional view). Disc-shaped brush groups are arranged in upper and lower two stages, and are configured to be bolted to the frame 1a by the mounting holes 12a on the outer periphery. Figure 2 shows the upper brush group in the left half, the lower brush group in the right half, one around the rod axis
The axis of the brush-like cleaner is arranged on the circle of
And four lower tiers are arranged in a staggered state with their respective axes positioned between the respective axes, and eight disk-shaped brushes 12 are arranged.
The tip 12c of b is brought into contact with the outer surface of the rod 2 by a predetermined length. The disc-shaped brush 12b is pivotally supported so as to be rotatable, and can be rotated occasionally to change the position of the bristle tip.

Incidentally, the disk-shaped brush 12b is driven by the driving device.
May be rotated. Further, the pressurized water may be supplied to the contact surface between the plate-like cleaner 11 and the rod 2 of the brush-like cleaner 12.

When the rod is pulled up after the penetration test for one rod, the mud adhering to the outer surface of the rod 2 is scraped off by the plate-like cleaner 11 and the brush-like cleaner 12, and the outer surface of the rod 2 becomes clean.

According to the present invention, however, the rod can be removed without requiring any manpower, and a bit having a diameter larger than the diameter of the rod can be passed. And rods smaller in diameter than the bit can be muddy.

[0021]

According to the present invention described in detail above, the following effects can be obtained. (1) In the normal process of pulling up the rod after it penetrates, the mud on the outer surface of the rod falls off cleanly,
In addition, work efficiency is improved (claim 1).

(2) In the plate-like elastic body, a thin plate of a spring material and a rubber plate having a predetermined thickness are sandwiched via a spacer and a slit is provided, so that the elastic change range is limited. It is large and well drains and has a long life. Also, since a bit with a diameter larger than the rod diameter can pass, there is no need to open the device for setting and removal, etc.
Moreover, it is also possible to drop a rod smaller in diameter than a bit.
(Claims 2 and 3).

(3) In the brush cleaner, a plurality of disc-shaped brushes are arranged in two or more stages (a plurality of stages), and the tip of a predetermined length is attached to the rod so that the brush is in contact with the rod. Is cleanly cleaned, and the brush is rotated occasionally to renew the contact position, thereby enabling efficient mud removal (claim 4).

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a plate-shaped cleaner of a rod mud remover showing one embodiment of the present invention, wherein (a) shows a cross section taken along line AA of (b) and (b) shows a vertical cross section.

FIG. 2 is a plan view of a brush-like cleaner of a rod mud remover showing one embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view of a brush-like cleaner of the rod mud remover showing one embodiment of the present invention.

FIGS. 4A and 4B are views of a rotary percussion drill / cone penetrating machine in a state where a rod mud-down device according to an embodiment of the present invention is mounted on a frame, wherein FIG. 4A shows a plane and FIG.

FIGS. 5A and 5B are views of a rotary percussion drill / cone penetrating machine in a state in which a rod mud remover according to an embodiment of the present invention is attached to a frame, and FIG. 5A is a plan view and FIG. Shown respectively.

FIG. 6 is a side view of a ground survey vehicle equipped with a rotary percussion drill / cone penetrating machine equipped with a rod mud remover according to an embodiment of the present invention, mounted on a rear portion of the vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cone penetration machine 1a Frame 2 Rod 10 Rod mud remover 11 Plate cleaner 11b Phosphor bronze thin plate 11c Urethane rubber plate 11d Spacer 11g Rod through hole 11h Slit 12 Brush cleaner 12b Disk brush 12c Hair tip

──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Hikaru Sasao 2-9-1-1, Tobita-Ki, Chofu-shi, Tokyo Kashima Construction Co., Ltd. (72) Inventor Kenji Nishi 2--19, Tobita-Kiyota, Chofu-shi, Tokyo No. 1 in Kashima Construction Co., Ltd.Technical Research Laboratories (72) Inventor Yasushi Suzuki Kashima Construction Co., Ltd. Technical Research Laboratories 2-9-1, Tobita-Sen, Chofu-shi, Tokyo (72) Inventor Kojiro Takei Tokyo Kashima Construction Co., Ltd.Technical Research Laboratories, 2-9-1-1, Tobita-shi, Tokyo Chofu City (72) Inventor Jun Shinjo 1-29-15, Chuo, Nakano-ku, Tokyo Minken Industrial Co., Ltd. (72) Inventor Ogami Satoru Tanaka 1-29-15 Chuo, Nakano-ku, Tokyo Minami Kogyo Co., Ltd. (72) Inventor Hiroshi Uneshima 1-29-15 Chuo Nakano-ku, Tokyo Minato Kogyo Co., Ltd. (72) Inventor Naka village Male Soka City, Saitama Prefecture Yatsuka-cho, 928 address 7 finite company Nakamura in Tech (58) investigated the field (Int.Cl. ^6, DB name) E21B 12/06 E02D 1/02

Claims (4)

(57) [Claims] Claims: 1. A ground survey machine is mounted on a frame.
And a brush-like cleaner and a plate-like cleaner disposed respectively on the upper and lower stages of the axis. The plate-like cleaner is formed by stacking a plurality of two types of plate-like elastic bodies having a rod through hole at the center thereof along the axis. The brush-like cleaner has a plurality of disc-like brushes having a shaft centered on one circle centered on the rod shaft, and a brush of a predetermined length in contact with the rod in a plurality of stages. A rod mud remover, which is provided. 2. The two types of plate-like elastic members are a thin plate of a spring material and a rubber plate of a predetermined thickness, and spacers having holes larger in diameter than the rod through-hole are alternately interposed therebetween, and 2. The rod mud dropping device according to claim 1, wherein a slit having a predetermined depth from the rod through hole to the outer periphery is cut in the plate-like elastic body. 3. 3. The rod removing device according to claim 2, wherein the thin plate of the spring material and the rubber plate having a predetermined thickness are made of phosphor bronze and urethane rubber, respectively. 4. The plurality of disk-shaped brushes have a rod axis center.
2. The rod mud according to claim 1, wherein the axes are arranged at an equal angle on one centered circle, and the upper and lower steps are arranged between the axes. Drop device.