JPH0646087U - August Kryu and auger attachment - Google Patents

Abstract

(57) [Summary] [Purpose] A reaction anchor that can be installed without damaging the blade of an August screw and can be easily attached to a work machine such as a pile press-in / pull-out machine for excavation work or a strong reaction force. To bury. [Structure] An inner peripheral surface of a through hole 9 formed at the center of the rotor 6 which is composed of a mounting portion 14 mounted on a pile press-fitting / pulling machine, a driving device 2, and a rotor 6 driven by the driving device 2. The slit 12 of the outer edge portion of the blade 11 of the August crow 8 is fitted to the ridge 10 of FIG.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an August crow and an auger attachment for excavating the August crow into the ground.

[0002]

[Prior art]

 Prior to pile press-fitting work at the construction site, August Krew may be penetrated into the ground to obtain the reaction force of pile press-in force, or for mining, trial drilling, etc. In this case, the August crow was grasped by the excavation device that moves up and down along the vertical leader provided at the front part of the work machine, and was lowered while rotating and driving the excavation device to penetrate the August cru into the ground.

[0003]

[Problems to be solved by the device]

 In such a conventional auger excavator, since the blade of the auger screw is directly gripped from the outer periphery and rotationally driven to penetrate into the ground, if the grip is strongly gripped, the gripped part of the blade is deformed and the penetration resistance increases. became. In addition, when the August Krew is used as a reaction force anchor, there is a problem that it is difficult to adjust the rotation speed and the descending speed of the August Krue because the sand and sand must penetrate into the ground without stirring. . The present invention has an object to provide an auger attachment and an auger screw that do not deform even if the blade of the auger screw is gripped at any position, and do not need to adjust the rotation speed and the descending speed of the auger screw. There is.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention forms slits facing inward at the outer edge of the blade of the August crow, and the slits are arranged in parallel with each other in a straight line with the axis of the August crow. It is characterized by being formed. Further, it is composed of a mounting portion for mounting on a pile press-fitting / extracting machine, a driving device, and a rotor driven by the driving device. The rotor has a through hole formed at the center, and the rotor is driven at a symmetrical position on the inner peripheral surface of the through hole. It is characterized in that a protrusion is formed and the slit of the August screw is fitted into the protrusion to attach the August screw.

[0005]

[Action]

 Attach the auger attachment to the chuck of the pile press-in / pull-out machine, etc., fit the slit formed in the blade of the August screw into the ridge in the center of the rotor, and attach the August screw to the rotor. The drive unit is driven to rotate the August screw through the ridge. The August Krew descends by its own weight, the rotational force, and the thrust of the blade angle, using the ridges as guides, and penetrates into the ground without stirring the ground to become a reaction anchor with a large supporting force. Also, by rotating the August crawl while lowering it, it is possible to excavate the ground while agitating the ground and discharge the mixed stones in the ground to the ground.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the auger attachment 1 is equipped with a hydraulic motor 3 or an electric motor or the like as a drive source of the drive device 2, and the hydraulic motor 3 has a small-diameter gear 5 through a reduction gear 4. Is connected with. The rotor 6 is formed in a cylindrical shape and has a large-diameter gear 7 on the outer circumference, and the large-diameter gear 7 meshes with the small-diameter gear 5. Rotational force from the drive device 2 is transmitted through the gear 5 having a small diameter, and the rotor 6 rotates.

The cylindrical rotor 6 has a through hole 9 penetrating the auger screw 8 at the center thereof, and a pair of protrusions 10 are arranged symmetrically on the inner circumference of the through hole 9. As shown in FIGS. 5 and 6, the auger screw 8 has slits 12 formed inward at the outer edge of the blade 11, and each slit 12 is parallel to the axis of the auger screw 8 and linear. Are formed in an array.

The ridge 10 has an axial length corresponding to a few peaks of the blade 11 of the augus cru 8 and is fitted with the slit 12 formed in the blade 11 of the augus cru 8. ing. Further, since the August screw 8 is loosely fitted so as to be movable in the vertical direction, the turning force can be transmitted through the slit 12. A mounting portion 14 is formed on the auger attachment 1, and the mounting portion 14 is mounted on the chuck 16 or the like of the pile press-fitting / extracting machine 13 for use.

Next, the operation of this embodiment will be described. As shown in FIG. 4, prior to the first press-fitting of the pile, a reaction force stand 17 is placed in the vicinity of the place where the resistance is press-fitted, and the pile press-fitting / extracting machine 13 is placed thereon. Then, the reaction force stand 17 is clamped by the clamp 18, and the anti-press-fitting / extracting machine 13 is fixed. Next, the elevating head 15 is raised to an appropriate height, and the auger attachment 1 is attached to the chuck 16 of the elevating head 15. The mast of the pile press-fitting / extracting machine 13 is moved back and forth and left and right to position it at a desired position for embedding the August screw 8. Attach the August screw 8 to this auger attachment 1.

As shown in FIG. 3, this mounting is performed by fitting the slit 12 of the blade 11 of the auger screw 8 into the protrusion 10 formed on the rotor 6. Since this fitting is loosely fitted to the extent that the August screw 8 can move up and down in the rotor 6, the tip of the August screw 8 is landed by its own weight. In this way, when the preparation for burying the auger screw 8 which becomes the reaction force anchor is completed, the drive device 2 is rotated in this state.

This turning force is transmitted to the August screw 8 through the protrusion 10 of the rotor 6, and the August screw 8 gradually rotates into the ground while using the protrusion 10 as a guide while rotating. The penetration is completed when the predetermined depth is reached. In this intrusion, no pressing force is applied, and the intrusion into the ground is made by the auger advancement force of the August crow 8, so the ground is not agitated, and the August crow 8 can obtain a strong bearing force as an anchor. Therefore, for example, the August screw 8 can be connected to the reaction force stand 17 to obtain a larger reaction force and the first pile can be press-fitted.

As shown in FIG. 7, the slits 12 of the auger screw 8 are fitted to the protrusions 10 of the rotor 6 of the auger attachment 1 sandwiched between the chucks 16 of the pile press-fitting / extracting machine 13 in the same manner as described above. Put on the screw 8. The stopper 19 is removably attached to the upper part of the protrusion 10 with a screw or the like, and the blade 11 of the August screw 8 is brought into contact with the stopper 19, and when the August screw 8 is rotated, the protrusion 10 is used as a guide to descend. Do not allow After the above setting, the rotor 6 is rotated by the drive device 2 to rotate the auger screw 8 and the chuck 16 is lowered to drive it into the ground.

When the auger attachment 1 reaches the surface of the earth as the excavation progresses, the excavation of the auger screw 8 is temporarily stopped, the stopper 19 is removed from the upper portion of the ridge 10, and the chuck 16 is raised, so that the auger screw 8 can be arbitrarily moved. After the stopper 19 is attached to the upper portion of the ridge 10 again, it is rotated and lowered as described above. In this way, when the August crow 8 reaches a predetermined depth, the digging of the pile is completed. In this excavation, since the pressure is applied along with the rotation, the ground is agitated by the blade 11 of the August screw 8 and excavated. Therefore, stones and the like mixed in the ground can be discharged to the ground. it can.

In the above-described embodiment, the auger attachment 1 is mounted on the chuck 16 of the anti-press-fitting / pulling machine 13, but as shown in FIG. 8, it is fixed by pressing it with a caterpillar or the like of the working machine 50. It can be attached to a hydraulic excavator car and used.

[0015]

[Effect of device]

 In the present invention, the August screw is not damaged because the slit of the August screw is fitted to the protrusion of the rotor formed in the cylindrical shape. Also, the auger screw descends using the ridges of the rotor as a guide and gradually penetrates into the ground only by its own weight, the rotational force and the thrust of the blade angle, so it does not stir the ground and has a strong supporting force. The reaction force anchor can be buried. In addition, it is possible to perform various operations such as lowering the ground as it rotates to agitate the ground and discharge the mixed stones in the ground to the ground. Furthermore, this device can be attached to various work machines for use, and it is economical because it does not require a dedicated excavator to be prepared. In addition, work efficiency can be improved because it can be easily carried into the construction site without any trouble.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view of an embodiment of the present invention.

FIG. 2 is a plan view of an embodiment of the present invention.

FIG. 3 is a partially longitudinal side view of an embodiment of the present invention.

FIG. 4 is a side view showing an example of use of the present invention.

FIG. 5 is a plan view of an embodiment of the present invention.

FIG. 6 is a side view of an embodiment of the present invention.

FIG. 7 is a partially longitudinal side view of an embodiment of the present invention.

FIG. 8 is a side view showing an example of use of the present invention.

[Explanation of symbols]

 1 Auger Attachment 2 Drive Device 6 Rotor 8 Auger Screw 9 Through Hole 10 Projection 11 Blade 12 Slit 13 Pile Press-in / Extractor 14 Attachment 15 Lifting Head 17 Reaction Stand 18 Clamp 19 Stopper

Claims (2)

[Scope of utility model registration request] 1. A slit is formed inward at the outer edge of the blade of the augus cru, and each slit is formed in parallel with the axis of the augus cru and arranged linearly. August Kryu. 2. A mounting part for mounting on a pile press-fitting / pulling machine, a drive device, and a rotor driven by the drive device,
The rotor has a through hole formed in the center, a ridge is formed at a symmetrical position on the inner peripheral surface of the through hole, and the August screw is mounted on the ridge by fitting the slit of the August screw into the ridge. Characteristic auger attachment.