JPH0230552Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is an earth auger cleaning device that cleans and removes excavated soil stuck between the screw blades of an earth auger and prevents muddy water from scattering during cleaning. Regarding.

[Conventional technology] A large amount of earth and sand adheres to the screw blades of the earth auger that are pulled up after excavating the ground. It was necessary to remove earth and sand from the screw blades during rotational lifting.

Therefore, in the past, soil was removed using a scraping plate located between the screw blades, or a 10th
As shown in the figure, worker b was directly washing the pulled-up screw a using high-speed water from a jet washer c to remove earth and sand.

Note that Japanese Patent Publication No. 1989-8931 discloses an excavation device equipped with a water injection device for washing and removing mud adhering to a rope suspending an excavation mechanism such as a bucket or auger.

[Problem that the invention attempts to solve]

However, the above-mentioned scraping plate alone cannot completely clean the dirt adhering to the screw blade, which has the drawback of inevitably reducing work efficiency. In this case, the muddy water will be scattered around, so if you are working near the roadside or a neighbor's house, extend the temporary fence all the way to the top or stretch the curing sheet d high to create a third place. There was a disadvantage that it required a great deal of time and effort, such as the need for curing so as not to cause trouble to workers, and there was also the inconvenience that worker B would end up dissolving the scattered muddy water.

[Purpose of invention]

This invention was devised in view of the actual situation,
To provide an earth auger cleaning device which completely cleans and removes excavated soil adhering to an earth auger screw using a scraping plate and high-speed water, and prevents muddy water from scattering during cleaning.

[Means for solving the question]

In order to achieve such an object, the present invention provides an earth auger comprising an earth auger screw drive device, the earth auger screw, and a base having a screw guide portion through which the earth auger screw passes during excavation. A cylindrical body is provided through which the base earth auger screw can freely pass through in the axial direction, and at least two or more nozzles are provided in the cylindrical body at a height extending in the longitudinal direction of the cylindrical body. a water injection device provided so as to face between the screw blades of the earth auger screw; A sand scraping plate whose tip is interposed between the screw blades and scrapes off the earth and sand attached to the screw blades when the earth auger screw is rotated and pulled up; and a curing plate that covers the entire circumference of the cylindrical body in the longitudinal direction. It consists of a sheet.

[Effect of invention]

According to the present invention, the soil scraping plate scrapes off the excavated soil stuck between the screw blades, the high-speed water jetted from the water injection device cleans and removes the soil, and the curing sheet removes the soil during such cleaning. Prevent muddy water from scattering.

[Example of idea]

Hereinafter, embodiments of the present invention will be described in detail based on FIGS. 1 to 9.

1 to 4 show a first embodiment of the present invention. In the figures, 1 is a leader whose lower end is supported by a catching hawk 3 on the front of a base machine 2, and a stay 4. It is supported so that it can stand up freely. This reader 1 also includes a reversible motor 5.
An auger screw drive mechanism 7 consisting of a speed reducer 6 and a reduction gear 6 is attached to two guide rails 8 laid in the longitudinal direction in the front surface of the leader 1 via a slide fitting 9, and is suspended by a wire 10 so as to be able to rise and fall freely. One end of this wire 10 is connected to a winch 11 installed on the base machine 2 and wound therein. An auger screw 12 is connected to the output shaft of the reducer 6, and the catching boke 3 has a circular screw guide hole 13 through which the auger screw 12 passes during excavation.
A base 14 with a hole is attached to the base 14.
The cleaning cylinder 15 of the cleaning device according to the present invention is placed at the location where the screw guide hole 13 is bored. Note that this screw guide hole 13 is
The diameter of the hole is larger than that of the auger screw 12 and the center axis thereof is the same so as not to hinder the rotation of the auger screw 12 passing through the hole.

The cleaning tube 15 is a cylindrical tube with an inner diameter larger than the diameter of the screw guide hole 13, as shown in FIGS. 2 and 3, and is joined and fixed to the base 14 with the same center axis as the screw guide hole 13. has been done. Inside this cleaning cylinder 15, there is a high-pressure nozzle 17 connected to a water supply pipe 16 arranged along the inner circumference.
The cleaning cylinder 15 is installed at different heights in the longitudinal direction so as to face between the screw blades of the auger screw 12, and its tip is cut downward at an acute angle to be interposed between the screw blades. Mud removal rubber plate 18 that scrapes off the mud that adheres to the screw blade during rotation and pulling up in step 12.
is provided on the inner wall of the cleaning cylinder 15 below the high-pressure nozzle 17 so as to be movable in the directions of arrows A and B.
The high-pressure nozzle 17 can be adjusted to either concentrated watering or diffused watering depending on the amount and quality of mud attached to the screw blade, and the mud-removing rubber plate 18 is made of a single piece of water. Since the rubber plate is bent and its one end 18a is fixed to the inner wall of the cleaning cylinder 15 via the plate 19 with bolts 20 and nuts 21, it always rises in the direction of arrow A around the bent part 18b. However, when not in use, the tension spring 22 attached to the inner wall of the cleaning tube 15 by tilting it in the direction of arrow B is locked to the hook 23 provided on the surface of the mud removing rubber plate 18. It is configured so that it can be fixed and stored in the state shown by the dotted chain line.

Furthermore, when the tension spring 22 is removed from the hook 23, the mud-removing rubber plate 18 automatically rises in the direction of arrow A as described above, but the mud-removing rubber plate 18 is moved to the third position due to the load of the mud being scraped off. A reinforcing plate 24 is attached to the back surface of the device to prevent it from curving as indicated by the dashed line in the figure. Furthermore, a tension spring 25 is attached to the reinforcing plate 24.
Further, hooks 26 are attached to the inner wall of the cleaning cylinder 15, and by locking a tension spring 25 to the hooks 26, the mud removing rubber plate 18 is pushed back in the direction of arrow B during work. I'm getting used to it. In the figure, 27 is a hose joint that penetrates the cleaning tube 15 and fits into the water supply pipe 16 projecting to the outer periphery, and 28 is a hose that is connected to a jet washer (not shown). Then, the entire circumference of the cleaning cylinder 15 is covered with the cleaning cylinder 15.
A curing sheet 29 extending in the longitudinal direction covers the container to prevent muddy water from scattering during cleaning.

The curing sheet 29 is formed by forming a resin plate into a U-shaped cross section as shown in FIG. It consists of a lower door 33 that can be opened and closed in any direction. In addition, the upper door 31 and the lower door 33
The doors 31 and 33 are constructed so that they overlap to some extent when closed, as shown in Fig. 3, in order to allow immediate curing during use. Doors 31 and 33 are 2 each on the left and right
It is a split type. Furthermore, the upper door 31
and the lower door 33, there is a thickness m of the base 14.
A gap 34 is provided at a distance that matches the diameter of the hose 28. When closing each door 31, 33, the base 14 is inserted into the gap 34, and the base 14 and the hose 28 are connected to each other. It is designed so that it does not interfere with the closing of the doors 31, 33. Note that each door is locked with a closing joint (not shown).

Since this embodiment is configured as described above, when the auger screw 12 is rotated and pulled up after the completion of excavation, the tension spring 22 that is engaged with the hook 23 in the cleaning cylinder 15 is first removed and the mud removing rubber is removed. After the plate 18 is raised in the direction of arrow A and its tip is interposed between the screw blades, the tension spring 25 is locked to the hook 26 on the opposite side (back side). Next, the cleaning cylinder 15 is placed inside the curing sheet 29.
After arranging the cleaning cylinder 15, the doors 31 and 33 are closed to cover the entire circumference of the cleaning cylinder 15. and,
If water is introduced from the jet washer at the same time as the auger screw 12 is rotated up and water is jetted out at high speed from the high pressure nozzle 17, the mud adhering to the screw blades will be scraped off by the mud removing rubber plate 18. In addition, each high pressure nozzle 1 installed at several locations
Since the dirt adhering to the screw blades is washed with high-speed water from No. 7, the mud adhering to the screw blades is completely removed, and the mud adhering to the mud removing rubber plate 18 is also washed away by the water droplets in the cleaning cylinder 15 at the same time. It will happen. In addition, the inner wall of the cleaning tube 15 can prevent muddy water from scattering due to washing, and since the curing sheet 29 covers the entire circumference in the longitudinal direction, the scattering of muddy water can be more reliably prevented. can. Moreover, in order to attach the curing sheet 29, it is sufficient to simply close the doors 31 and 33 above and below the curing sheet 29, so that work efficiency is significantly improved compared to the conventional method. Furthermore, after the cleaning work is completed, the curing sheet 2
9 and remove the tension spring 2 inside the cleaning cylinder 15.
5 from the hook 26, tilt the mud removing rubber plate 18 in the direction of arrow C and lock the tension spring 22 to the hook 23, so that it can be stored in a state where it can be used at any time for the next work. Furthermore, as described above, the mud adhering to the mud removal rubber plate 18 during mud cleaning and removal is also washed away during the cleaning operation, so there is no need to clean it again when storing.

FIG. 5 shows a second embodiment of a curing sheet which is an element of the present invention. This curing sheet 35 is different from the above-mentioned curing sheet 29 and is used by being placed on the base 14, and has an aluminum front panel 36. A side panel 37 and a door 38 made of different materials are connected to each other via a hinge 39 so as to be rotatable in the directions of arrows E and F. Since the left and right doors 38 are required to be quickly heated during use, they are constructed so that they overlap somewhat when closed, but a rectangular notch 40 is carved in the center of the side edge of each door 38. The notch 40 is provided with an insertion hole 4 through which the hose 28 is inserted so that the hose 28 does not get in the way when the door 38 is closed.
1.

The curing sheet 35 of this embodiment has such a configuration, and when used, the side panel 37 and the door 38 are rotated in the directions of arrows E and F, respectively, while being placed on the base 14. All it had to do was cover it, and the work efficiency was further improved.

Figures 6 and 7 show other mounting structures for the cleaning tube and curing sheet according to the present invention, and those having the same configuration as the first embodiment are given the same reference numerals and the structures will be explained. is omitted.

In this embodiment, an aluminum back panel 42, which is longer than the width n of the base 14, is vertically installed on both the upper and lower surfaces of the base 14 between the reader 1 and the cleaning tube 15, and furthermore, a cleaning tube 15 is provided. Support stay 4 supporting tube 15
3 is attached to the side surface of the cleaning tube 15 side of the rear panel 42, and a curing sheet 45 is installed by forming an aluminum plate material into a U-shaped cross section.
That is. In addition, the curing sheet 45
There are flanges 4 at both ends of the opening that opens in the longitudinal direction.
6, and after covering the base 14 and cleaning cylinder 15 with a curing sheet 45, the flange 46 is brought into contact with the back panel 42 and can be tightened and fixed with bolts 47 and nuts 48. . In addition, 4
Reference numeral 9 denotes a screw through hole bored in the upper surface 50 of the cleaning cylinder 15.

Since this embodiment is constructed in this manner, during work, the curing sheet 45 is moved in the direction of arrow G while covering the base 14 and the cleaning cylinder 15, and the flange 46 is moved.
It is only necessary to bring it into contact with the rear panel 42 and tighten and fix it with the bolts 47 and nuts 48, which improves work efficiency compared to before.

Furthermore, FIGS. 8 and 9 show still another mounting structure for the cleaning cylinder and the curing sheet, and even in this embodiment, the same reference numerals are given to those having the same structure as in the first embodiment. Attach.

In this embodiment, a U-shaped pipe 51 protruding in the direction of the cleaning cylinder 15 is screwed onto the back panel 42 in parallel with the base 14', and a plurality of carabiners 52 are attached to the upper edge. Curing sheet 53
, via the carabiner 52 to the U-shaped pipe 51
During work, the curing sheet 53 is opened and closed like a curtain to prevent muddy water from scattering. Incidentally, when the curing sheet 53 is not in use, it may be tied to the back panel 42 with a string (not shown) or the like. Reference numeral 54 denotes a support rod for the U-shaped pipe 51 which is rotatably attached to the upper part of the cleaning cylinder 15, and when the curing sheet 53 is used, after covering the cleaning cylinder 15 etc. with the curing sheet 53, it is moved in the direction of arrow H. Lift the U-shaped receiving part 55 at the tip to the U-shaped pipe 51.
It is to be locked to.

In this embodiment as well, the curing sheet 53 can be quickly disposed and the scattering of muddy water can be reliably prevented.

Although not shown, the present invention is of course applicable to multi-axis soils.

[Effect of idea]

As described above, according to the present invention, it is possible to completely and efficiently wash and remove the soil and sand that has adhered between the screw blades of the auger screw, and the scattering of muddy water can be completely prevented with a simple operation. Excavation work can now be carried out efficiently regardless of location.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of an auger excavator equipped with a cleaning device according to the present invention, FIG. 2 is a partially cutaway side view of a cleaning cylinder, and FIG. 3 is a sectional view taken along the line -- in FIG. Fig. 4 is a perspective view of the curing sheet, Fig. 5 is a perspective view of a second embodiment of the curing sheet, and Figs. 6 and 7 show other mounting structures for the cleaning cylinder and the curing sheet according to the present invention. , Figure 6 is its side view, Figure 7 is its side view, and Figure 7 is its side view.
8 and 9 show still other mounting structures for the cleaning tube and the curing sheet, FIG. 8 is a side view thereof, and FIG. 9 is a sectional view taken along the line - in FIG. 8. , FIG. 10 is a schematic diagram of a conventional cleaning method. 1... Leader, 12... Auger Screw,
13... Screw guide hole, 14, 14'... Base, 15... Cleaning tube, 16... Water supply pipe, 17...
High-pressure nozzle, 18...Mud removal rubber plate, 24...Reinforcement plate, 29, 35, 45, 53...Curing sheet.

Claims (1)

[Scope of utility model registration request] An earth auger comprising an earth auger screw drive device, the earth auger screw, and a base having a screw guide portion through which the earth auger screw passes during excavation,
A cylindrical body through which the earth auger screw can freely penetrate in the axial direction is provided on the base, and at least two or more nozzles are disposed within the cylindrical body at different heights in the longitudinal direction of the cylindrical body. a water injection device installed so as to face between the screw blades of the earth auger screw; A sand scraping plate that is interposed between the screw blades and scrapes off dirt that adheres to the screw blades when the earth auger screw is rotated and pulled up, and a curing sheet that covers the entire circumference of the cylindrical body in the longitudinal direction. An earth auger cleaning device characterized by the following configurations.