KR20170004628A - Auger drilling is possible by attaching the casing of the too cranes auger - Google Patents

Abstract

The present invention relates to an auger crane having a casing auger device, to enable simple single hole evacuation and double evacuation in the crane auger. The purpose of the auger crane is to reduce economical burdens of users and improve safety of a worker by preventing a hole from collapsing in a poor ground and enabling an evacuation operation of the auger crane in mud. The auger crane includes: an auger crane main body; a boom which can be expanded and tilted; and a boring device at the end of the boom. An additional casing auger is included in the boring device of the auger crane. The auger crane has the casing auger performing both inner screw evacuation and outer case evacuation to enable the double evacuation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an auger crane capable of performing double excavation by attaching a casing auger,

 The present invention relates to auger cranes, and more particularly, to a single auger decelerator mounted on a current auger crane, a casing piercing device - casing auger which rotates from the outside by using a separately mounted hydraulic component and a hydraulic reducer, Which is referred to as " That is, in addition to a single screw, which is a current drilling apparatus, a separate case (steel pipe) rotating drilling apparatus is attached, and an auger It concerns the crane.

The present invention relates to an improved device design of a hole drilling operation of an auger crane capable of towing a bulldozer and a heavy object. Equipment for drilling holes in the ground of a civil engineering or construction site usually consists of a structure supporting the rotating body and a rotating body. The most typical drilling equipment

As shown in FIG. 1, Korean Patent Laid-Open No. 10-2010-0130012 entitled "Method of boring a perforator and rock bed using the same," and a three-pointed large perforator, which can be found in a registered Korean utility model 20-0231344 " A feeder support 110 as a structure for fixing the perforation device perpendicular to the paper surface, a screw auger (electric) motor 120 as a perforating device attached parallel to the feeder support, and an auger 140. Here, the casing auger motor for rotating the case enclosing the screw may be divided into a separate type 140 and an integral type 160 that rotates the screw and the casing together. The characteristics of this large punching machine are large-sized motor in a large space, it is possible to enter large-sized concrete piles after drilling hole diameter of 450 ~ 800mm and drilling depth of 15 ~ 25m. Therefore, large power is required in large construction sites and it is mainly used for long-term use.

        Another typical type of punching machine is disclosed in Korean Patent Laid-Open Publication No. 10-2013-0069535 'multi-purpose folding mount of a vehicle-mounted auger crane'

10-1994-0011338 It is an auger crane that can be seen in 'Bull's Crane'.

        The auger crane 200 includes a multistage hydraulic crane 210 attached to a vehicle and a punch device 300 attached to a boom end of the crane by a link 220. The hydraulic auger motor 310, An auger screw 330, and a screw bit 340. This auger crane is attached to the vehicle and is easy to move and has a feature that it can be drilled even if the work space is narrow. It is mainly used in the work of 450 ~ 500mm and 15m depth in narrow urban area.

        The common working principle of the two equipments is to excavate the ground (gravel) by attaching an auger screw which drills the rotating motor. The difference is the way of moving the body, fixing and operating the excavation motor, And so on. The major difference is that the large perforator of FIG. 1 is set up perpendicularly to the perforated paper with a feeder support 110, which is a single structure in which a support for supporting the perforator can not be stretched, When the equipment is fixed, only one hole can be drilled, and when the hole is added, the equipment moves and is returned to the feeder support 110. In this case, shall.

On the other hand, in the auger crane of FIG. 2, the auger crane device as shown in FIG. 3 is mounted on a large-sized vehicle. The piercing device can be perpendicular to the ground regardless of the angle of the crane boom. Thus, the piercing device attached to the telescopic boom can be fixed Holes can be drilled

In a narrow urban area or a weak ground, construction work,

The auger crane, widely used in the field where large 3-point perforators are difficult to enter, combines maneuverability and economy with a wide, maximum hole diameter of 450mm and a maximum drilling depth of 15m while being mounted on a hydraulic crane. Is getting wider. However, despite its ease of use, it has a single auger with one rotating shaft. That is, by using a screw-connected in series with the auger speed reducer connected to the crane boom is only possible Hole shape ○ form of a single perforation. When the muddy soil or the sandy soil is pierced due to such structural limitations, a drastic problem arises in which the perforation does not occur or the perforated hole collapses. Therefore, it has not been able to operate and manage the mobility and economy in soft ground (river side, seashore, etc.) where sandy soil and sandy soil are many.

      Accordingly, the present invention provides an auger crane equipped with a double auger device (Double Rod Auger), which is capable of preventing collapse when holes are drilled in a soft ground, and is equipped with a casing auger. Equipped auger crane

I want to provide. Such a similar device is a technique realized in a large punch of Fig. 1

And has been previously implemented using a case auger motor 140 that attaches in parallel with a rail leader of a vertical feeder support 110 with a large perforator.

In order to achieve the above object, the present invention provides a casing auger 400,

 Attach to an auger crane. The auger motor 310 is attached to the auger crane

And a bracket 410, which attaches the fastening bolt 411 and the casing auger drive body 420 device. The casing auger drive body is provided with a hydraulic motor 421 for rotating the case (pipe), a hydraulic speed reducer 422, a swing bearing 423 connected to the hydraulic speed reducer by a gear, and a case clamp device 424 ). The casing body 430 is fastened to the case clamp device 424. The casing body is composed of a steel pipe 431 and a casing bit 432.

   The present invention has a casing auger device capable of preventing hole collapse during auger crane drilling operation, and auger crane capable of only simple screw perforation (hole type) so far can be used as a double crane Excavation (◎ hole type) makes it possible. In the soft ground, only the auger crane's single type [Auger] collapses the pierce hole. Until now, only 3 point type perforator equipped with double rod auger (donut auger) has been able to drill the casing (DRA method) It becomes. Therefore, when a large-sized boring machine was inevitably forced to work on a weak construction site, an earthquake collapse occurred. Using the "auger crane", which is light and can be pierced to a far distance using a crane boom, Safe drilling work can be done. In addition, the double auger for large punching machine is similar in driving principle, but the supply method and structure / structure of the power source are completely different. In other words, double auger for large punch can be used by supplying electric power or hydraulic pressure, which is a power source, separately. However, the system attached to the vehicle auger crane operates with its own hydraulic pressure. In other words, even if there is no electric power supply or hydraulic power pack, it is possible to perform a double excavation perforated casing work, so that even in a field where there is no electric facility or a hydraulic power pack can not enter, a single auger crane can provide enough necessary drilling work .

1 is a side view of the entire three-point large perforator.
2 is a side view of the auger crane before the invention is applied.
3 is a plan view and a side view of an auger crane mounted on a vehicle.
Figure 4 relates to an applied auger crane.
FIG. 5 is a perspective view of a casing auger according to the present invention and a conventional screw.
Figure 6 is a plan view and front view of the invented casing auger

4, 5 and 6, the casing auger 400 is connected to an end of an auger motor 310 attached to an end link 220 of a crane boom 210 of an auger crane 200, do. The auger device 200 to which the casing auger device is to be attached is attached to the foldable and extendable link 220 at the third to fourth stages of the telescopic crane boom bar 210 to perform the excavation and lifting operations simultaneously It is a number of equipment. As shown in FIG. 2, the perforator 300, which receives the power of the hydraulic crane, punctures by using rotational force. The auger device 300 includes an auger motor 310 having a hydraulic speed reducer and a hydraulic motor combined therewith, a pneumatic shock absorber 320 for relieving an impact at the time of punching, a screw bit 340 piercing in direct contact with the ground surface, And an auger screw 330 for pushing the gravel upward.

In order to perforate the auger crane, the perforator 300 should be fixed perpendicularly to the ground with the auger crane unfolded. In this case, since the punching device is shaken to the left and right by the link type (220) connected to the boom, the operator adjusts the extension and the angle of the boom and sets the punching device by using the attached vertical system. If the drilling operation is performed after the setting, the hole is formed in the general soil, but in the soft ground such as mud, the hole is not collapsed or the hole itself is not formed.

Thus, the casing auger 400, which is the invention of the punching device 300, is attached to perform double piercing, thereby drastically improving the hole collapse and inability to puncture the soft ground. The fastening bracket 410 is fixedly attached to the auger motor 301 of the conventional punching machine 300. The fastening bracket and the casing auger body 420 can be detachably attached using rigid fastening bolts 411.

        The casing auger drive body 420 is connected to the auger by a hydraulic line

The hydraulic motor 421 generates rotational motion, and the hydraulic pressure reducer 422 engaged with the hydraulic motor decelerates the rotational force at a proper speed. The swing bearing 423, which is connected to the hydraulic speed reducer by a gear, is provided with a case clamp

Causing the device 424 to rotate. In this case clamping device, a casing body 430 for directly drilling a hole from the outside is fastened. The casing body is composed of a steel pipe 431 and a casing bit 432. The casing auger 400 thus constructed rotates in a direction opposite to the auger screw 330 that pierces the hole from the inside, and the steel pipe 413 surrounds the auger screw and punctures the hole from the outside. Therefore, when the auger screw in the inner side is pierced, it protects the hole by preventing the soil from being continuously introduced from the outside. Therefore, until now, only the large drilling machine has been able to perform the double drilling using the vertical feeder support, and this auger crane can do such a double drilling operation, and it is possible to secure stability and economical efficiency at the drilling site of the soft ground . Particularly, such a device using a hydraulic line of an auger crane is particularly useful in a field where it is difficult to input electricity or a narrow field.

100: 3-point large perforator
110: Feeder support
120: Screw auger motor
130: Auger screw
140: casing auger motor
150: Steel pipe pipe
160: Screw casing integrated auger motor
200: Vehicle mounted auger crane
210: Crane boom
220: Link
300: Perforation device
310: auger motor (reduction gear)
320: Pneumatic shock absorber
330: Auger screw
340: Screw bit
400: casing auger
410: fastening bracket
411: fastening bolt
420: casing auger drive body
421: Hydraulic motor
422: Hydraulic reducer
423: Swing bearing
424: Case clamp device
430: casing body
431: Steel pipe pipe
432: Casing bit 432:

Claims (1)

An auger crane comprising an auger crane main body, a stretchable and tiltable boom, and a perforator at an end of the boom,
And a cage auger device is included in the piercing device of the auger crane. The auger crane is capable of performing a double excavation by attaching a casing auger which crosses the inner screw hole and the outer casing hole.

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