KR101436379B1 - Remote controlled joint clamp for auger machine that fixes screw head on drive socket - Google Patents

Abstract

Disclosed is a screw head mount device for an auger machine that is provided with a remote-controlled joint clamp. The present invention relates to an auger attachment technique and a device for same with which an attachment/detachment operation between an auger screw and a drive socket for driving same can be performed with safety and convenience in an auger drill machine or an auger hammer drill machine, and suggests an image transmission technique for providing a good view for facilitating micro control of the drive socket mounted on an excavator boom and a remote connection technique for accelerating and ensuring an operation of coupling a screw and the socket with each other after insertion based on the ensured good view as a main technical means. As an additional technical means for organic combination of the above-described technical means, an organic communication network that allows individual means which are connected to the whole system to be performed with high reliability is established. According to the present invention, the joint clamp can be operated with high reliability through organic cooperation with image observation equipment in an environment where independent mounting out of the drive socket makes continuous supply of sufficient power difficult and where an integrated operation is difficult due to remote control, thus accidents can be prevented in most auger operation sites and operation efficiency and operation quality can be significantly improved.

Description

[0001] The present invention relates to a remote controlled joint clamp for auger machine screw head mount apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft attachment assist technique and apparatus for safely and conveniently performing a detachment operation between an auger screw and a drive socket for driving the auger machine in an auger machine.

An auger machine refers to a machine that pierces a drill by rotating a drill-shaped screw Auger (commonly referred to as an auger).

Auger machine, which is a core work tool of auger machine, is composed by installing a rotating blade bit that digs the ground at the rod end of the screw shape that plows the soil. If necessary, it also attaches a hammer head to crush the rock .

In other words, the auger screw with hammer function has a combination of a drill rotation by an electric motor or a hydraulic motor and a hammer hitting by a compressed air to break the rock, and at the same time, And has an operating structure to be raised.

Because of this operating structure, the auger machine is often referred to as an auger drill machine or auger hammer drill machine. There are two types of auger machines: one with a rail mounted on a crane or an excavator boom for raising and lowering an auger screw over a long stroke, and some with a simple attachment to an excavator boom without a rail. A small auger machine is a way of ascending and descending based on an excavator boom without a rail.

The auger machine mounted on the crane boom can enlarge the stroke of the auger unit, so that it is possible to mount auger auger as well as increase the drilling depth. The auger machine mounted on the excavator boom has the weakness of relatively limited pore diameter and depth, but it has the merit of simple start, end and progress of the work. However, there is a need to adapt various types of augers to any field and to adapt to the soil conditions in the field. In this process, auger screw replacement is essential.

The following prior art references refer to the basic structure of an auger machine, the basic design and operating principle of a drive socket, and the coupling structure with an auger screw.

(Document 1) 20-0390761 Decelerator for auger hammer drill (Document 2) Korean Registered Patent No. 10-0783777 A bit changable casing of auger hammer (Document 3) Korean Patent Registration No. 10-0890254 Drive device for auger with casing drive part (Document 4) Korean Patent Laid-Open No. 10-2013-0084269 A detachable auger hammer of a mini excavator

In order to effectively perform drilling work for planting a file or installing a telephone pole, it is necessary to carry out the work while changing the end shape and the auger screw having different length in the middle of the drilling operation. For example, when an auger with only a drill function is used in a loose ground that does not require a hammer operation, when the rock is encountered while digging into the ground, the drill screw is removed to replace the end bit with a hammer bit, Work is essential.

In addition, if a hammer drill screw equipped with a hammer bit is used to drill a rock and then the ground is loosened again, it is necessary to replace the drill screw with a drill bit in order to increase the working speed again.

The auger machine attached to the boom of a crane or excavator limits the vertical stroke depending on the height of the boom and the length of the rail. Therefore, even if the auger screw of the same type is used to break a deep excavator, Begin with a short auger screw, and then punch it over a certain depth, then you should replace it with a long auger screw.

In this process, desorption operation between the drive socket 220 and the auger screw 240 occurs uncommonly. However, in the present work site, the process of aligning the auger screw and the drive socket for detachment is a simple operation of moving the excavator boom back and forth Moreover, the adjustment mechanism is nothing but a reliance on the hunch of an excavator pilot.

In particular, when the auger screw to be replaced is vertically erected and then fitted into the empty drive socket, the excavator pilot can not see the field of view of the two joint axes directly, so the field worker in the vicinity grips the Auger screw directly After the drive socket and the auger screw were fitted to each other, in the process of finally fixing the drive socket and the auger screw, the operator had to go up to the drive socket and insert and fasten the fastening pin . It took a lot of manpower and unnecessary time in this process and there was a risk of human casualties.

The present invention has been made to solve the above-mentioned difficulties in mounting the auger screw.

The technical objective of the present invention will be described in detail. First, an optimum view is secured so that a pilot of a working vehicle such as an excavator can precisely manipulate a drive socket. Then, based on the ensured field of view, A screw mount device is provided which can easily and simply lock and fix the shaft coupling part.

In order to solve the technical problem, in the present invention, an image transmission technology for securing an optimum field of view so that an excavator pilot can precisely move a drive socket mounted on a boom and transmit the pilot signal to a pilot in real time, The main technical means is to combine the screw head and the socket with each other based on the field of view, and then to make the operation of tightening the both easily and reliably. In addition, as an additional technical means to organically combine the above technical means, it suggests an organic communication network construction technique in which all connected systems can operate with high reliability and safety.

These are introduced below in the order of execution of the technology system. For the sake of brevity, the specification and drawings of the present invention are described basically to satisfy all of the technical problems presented below. However, in order to satisfy the unity of the invention, Quot; as a scope of claims. In other words, considering the characteristics of the technical field that the safety of the operation of the equipment is threatened and the possibility of the entire operation failure increases even if only one technical stage is lacking or missing, the specification and drawings of the present invention exceed the contents of the claims of the present invention Of course.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The intent of the present invention to overcome the claims of the present invention and to provide a solution to the problem is to provide a method of manufacturing the present invention In order to prevent the avoidance of subsequent technology that might claim to be outside the scope of

Accordingly, the scope of the claims should be determined not only in terms of some solutions for carrying out the claims of the invention, but also for technical considerations for combination with the remaining solutions that indirectly support them.

The present invention can be clearly distinguished from each other in terms of each technical means, but in actuality, it is possible to reliably realize cooperative operation of the image observer and the joint clamp with high reliability in a severe operating environment in which it is difficult to securely ensure normal operation . Therefore, it greatly improves work efficiency and work quality in most auger operation sites, and it significantly reduces loss of physical cost and human cost due to accident prevention ability.

1 and 2 are side views showing a state where an auger machine is mounted on a mounting platform such as a crane and an excavator.
Fig. 3 is a plan view showing a drive socket mounting structure of a conventional auger machine,
4 is an enlarged cross-sectional view of Fig.
5 is a side view of an auger machine drive socket to which the present invention mounting device is applied.
6 is an enlarged cross-sectional view of Fig.
FIG. 7 is a conceptual view illustrating the operation of the image observer and the joint clamp in the process of aligning the auger screw and the drive socket. FIG.
FIG. 8 is a diagram illustrating the components of the image observer and the operation of the camera field of view and the illuminance sensor. FIG.
Fig. 9 is an internal three-dimensional view illustrating the operation structure of the clamp drive module
10 is a workflow diagram of a mounting apparatus according to the present invention for explaining safety cooperation operation by communication between an image observer and a joint clamp.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: FIG.

It should be noted, however, that in at least two embodiments, which will be described below, the constituent elements expressed in a specific terminology and their combination structure do not limit the technological ideas encompassed by the present invention

1 and 2 show a conventional auger machine mounted on a boom 160 of a crane 150 and a boom 110 of an excavator 100, respectively. For reference, the auger machine means a construction heavy equipment that can fulfill its own mission, and it means the combination of the platform (100 or 150) and the auger unit (200). In all auger machines, the initial starting height of the auger unit is adjusted to the height of the boom. Fig. 1 shows an auger screw for ground foundation work for drilling a very deep hole, and Fig. 2 shows an auger screw for a telephone pole piercing a relatively shallow hole. Obviously, it is very dangerous to mount the drive socket 220 and the auger screw 240 at the same height as in FIG. 1B.

2A and 2B, the overall configuration of the auger unit 200 will be described in detail with reference to FIG. 2A. First, only the screw motor 210, the drive socket 220, and the rotary blade bit 244 are provided, It can be seen that it is auger unit for loam ground.

The auger machine shown in FIG. 2B includes a hammer bit 245 and an auger unit 200, which can further exert a hammer function.

The hose for supplying the hydraulic pressure and the air pressure to the auger screw 240 is connected to the screw motor 210 which is raised and lowered along the rail 213. Therefore, 212 are additionally disposed at the uppermost end of the rail. Assuming the same type of auger screw, the size of the equipment is obviously larger than the rail auger unit. Therefore, although the present invention can be applied to a rail elevating auger machine more conveniently, it is not easy to micro-steer a drive socket mounted on a boom because the boom elevating auger machine is used. Therefore, However, it should be determined whether or not the operation of moving the boom 110 forward, backward and leftward is involved in the auger attachment process.

FIG. 3 illustrates a conventional attachment structure for connecting the drive socket 220 and the auger screw 240 in order to facilitate understanding of the present invention. FIG. 4 is a cross-sectional view illustrating the attachment structure of the adapter 225 and the pin It is a close-up view of the mount principle.

3 and the side view of FIG. 4, the screw mounting structure of the auger machine can be well understood. The drive socket 220 for receiving the rotational force output through the reducer 211 and transmitting the rotational force to the screw head 241 is formed in a hexagonal nut shape and the screw head 241 is also formed in a hexagonal nut shape, And the adapter 225, respectively.

The drive socket 220 and the screw head 241 are provided with a through hole through which the pin can be inserted. The adapter head 225 has a pair of screw head receiving grooves 223, And tightly fastened so as to be able to rotate integrally.

However, the mounting structure using the adapter 225 is time-consuming and dangerous because a field worker must directly approach the screw and proceed manually. In particular, even if the auger screw higher than the human key is vertically placed on the ground and simultaneously it is not easy to position it vertically below the drive socket, If the auger screw slips down during the tightening process, a serious accident may occur.

The overall structure of the present invention, which is invented to solve the above problems, will be described with reference to FIGS. 5 and 6. FIG.

FIG. 5 is a three-sided view of an auger machine drive socket to which the present invention mounting apparatus is applied, and FIG. 6 is an enlarged view of a socket and a screw head. 5 and 6 do not need the adapter 225 configuration described above.

5, the clamp driving module 252 and the relay antenna 270 are coupled to the joint housing 251, which is overlapped and fixed to the drive socket 220. For reference, the joint clamp 250, which is one category of the present invention, is defined as a single module structure that incorporates 250 lines, that is, (251) to (259). In other words, the constituent parts of the 250th part are all regarded as partial components constituting the joint clamp 250.

The same applies to the image observer 260, which is another category of the present invention, and the components of each of the ranges 261 to 269 may be regarded as partial components constituting the image observer 260.

The relay antenna 270 has a configuration not belonging to the above reference numerals. The relay antenna may belong to the joint clamp 250 and may also belong to the image observer 260, or may be a separate network that incorporates the two configurations, although the relay antenna does not belong both to the 250th and 260th groups, It can also be interpreted as an invention.

7 to 10, the overall operating structure and the technical effects of the present invention can be understood.

An image observer 260 for a screw axis alignment of an auger machine operating in a shielded environment inside a drive socket that is difficult to operate due to the lack of transmission of radio waves is provided with an attachment portion A camera 262 connected to the drive socket 220 for photographing a downward field of view downward from the drive socket 220 and an image transmitter 263 for transmitting an image captured by the camera to an external terminal. do. (See Figs. 7 and 8)

The connecting portion between the attachment portion 261 and the camera 262 is formed in a through-hole structure in which the hammer air supplied to the drive socket 220 passes. Since the hammer air, which is high pressure air, is supplied in a state in which the screw head is completely received and fixed, the flow rate (air resistance force acting on the image observer) is insignificant and the required adhesive strength of the attachment portion is not so high. However, it is necessary to pay attention to the use of a component having a vacuum or hermetically sealed structure in designing an electronic device such as a camera or an image transmitter because an image observer operates under a high pressure condition acting as a pulsating type.

The camera 262 is disposed on the axial centerline of the drive socket 220 so that the downward field of view center can coincide with the screw axis centerline of the auger screw 240 to be coupled with the drive socket 220.

The camera 262 includes an illuminance sensor for sensing the brightness of the inside of the driver socket 220. An image transmitter 263 disposed between the camera and the battery converts the sensing value of the illuminance sensor into a safety operation signal, (250), and to the clamp driving module (252). (See Figs. 8 and 10)

The communication antenna 264 connected to the image transmitting unit 263 transmits the video signal out of the drive socket 220. In this case, the only radio wave outlet is the lower hole of the socket, and when the screw head 241 is fully inserted into the socket, The communication is blocked because the exit of the terminal is blocked. (See Figs. 7 and 8)

The camera view at the bottom of FIG. 8 shows a state in which the current alignment state of the screw head 241 is captured as it is, and a screen (left side) in which the screw head is completely aligned and then inserted into the socket Right side). Although the technical idea of the present invention does not necessarily transmit an image by a wireless communication method, when an image is transmitted through wireless communication as in the present embodiment, instantaneous communication is interrupted when the screw head 241 is inserted into the socket. What is useful here is the brightness signal of the illuminance sensor transmitted in the last shortest moment. This can be instantaneously transmitted with a simple over-limit undersignal signal, so it can be usefully used as a safety signal to shut off or release the operation of the joint clamp 250.

7 and 9, the structure and operation of the remote control joint clamp 250 of the present invention will be described in detail.

The joint housing 251 is detachably coupled to the outer circumferential surface of the drive socket 220 and rotates together with the auger screw. Since the joint housing 251 only needs to bear the load of the screw and it is not necessary to withstand the screw driving torque or the hammer impact force, it can be easily designed with a simple detachable structure and the present invention can be easily applied to various kinds of drive sockets it means.

A clamp drive module 252 is mounted on the joint housing 251 to perform clamping and unclamping operations of the clamp 253 by remote control.

The clamp drive module 252 is constituted by at least a pair of motor-driven modules opposed to each other symmetrically with respect to the drive socket 220, and the rotational force of the motor in the order of the worm-worm wheel-pinion- . (See Fig. 9)

The clamp 253 driven by the clamp drive module 252 is operable to lock or unlock the screw head 241 of the auger screw 240 inserted into the socket while being pushed into or out of the drive socket 220 do. It can be seen that the clamp is designed to be thinner than the groove width of the screw fixing groove 242 of the screw head 241. As a result, the hammer motion of the auger screw is not significantly influenced by the clamping state of the clamp 253.

In this embodiment, the clamp driving module 252 is described as being driven by receiving the sensing signal of the image observer 260. However, when determining the technical idea of the invention only from the viewpoint of the clamp driving module, Can be expanded. That is, the image observer 260 of the present embodiment may be a screw inserting detection device disposed inside the drive socket 220 as an image sensing device, or may be a screw insertion detecting device disposed between the drive socket 220 and the screw head 241, Sensing device, etc., may intervene in the operation of the clamp drive module 252 of the joint clamp, or may include both of them, or may be a sensing device performing only one of the functions.

In other words, whether the sensing device, which is the main body of the sensing signal received by the clamp driving module 252, is located inside the drive socket or disposed between the drive socket and the screw head is important. .

This is the most technologically different part of the present invention when compared to a conventional external (= drive socket external) observable sensing / driving device.

The joint housing 251 may further include a relay antenna 270 for receiving the sensing signal of the insertion sensing device or the axial alignment sensing device and relaying it to the outside. The relay antenna 270 is disposed outside the drive socket 220 and the communication antenna 264 is disposed outside the drive socket 220. In this embodiment, the relay antenna 270 is disposed at the lower end of the clamp driving module 252, The joint clamp 250 may also receive signals from the communication antenna 264 or the relay antenna 270 and may be pushed into or out of the drive socket .

The relay antenna 270 is formed in a resilient structure that is adjustable in length, and is disposed in a space overlapping the inside of the diffraction range of the signal to be transmitted by the transmission antenna and the vertical downward space of the outer periphery of the drive socket 220. (See Fig. 7)

In case of too short wavelength, the communication wave may not be diffracted and it may have to depend on the reflection of light on the opposite side of the inner wall of the socket. Basically, when using commercially available radio waves such as 2.4GHz and 5GHz, You can send enough radio waves inside the socket with the aid of a relay antenna.

On the other hand, the joint clamp 250 is mounted independently to the joint housing 251 outside the drive socket, and it is difficult to continuously supply sufficient power. Accordingly, it is necessary to design the clamp drive module 252 as an operation structure capable of independently operating and maximizing the amplification of the force to securely screw the screw.

9, a worm-and-worm wheel 255 is connected to a clamp motor 254 driven by a battery, and the idler gear receives the rotation of the worm wheel and transmits the worm wheel to the pinion gear of the rack-and-pinion 256 driven body. This power transmission structure can easily implement the reduction ratio of several hundreds of gears 1, and if the coaxial coupling of the idle gear is designed to slip, the idle gear slips at the moment when the clamp 253 contacts the screw, so that high- It is possible to effectively protect the worm gear, the rack gear, and the pinion gear even if the motor is driven by a simple ON / OFF control.

Figure 10 is a simplified illustration of the work concept of a bilateral cooperation network based on the structure and operation of the video observer 260 and the joint clamp 250 described above. Basically, if the illuminance value is not kept low, the clamp does not lock. Also, if the illuminance value is kept high by default, the clamp is also a mechanism to maintain the openness. As a result, when the clamp is open, the screw head is prevented from coming in and the joint clamp 250 is prevented from being broken. Also, when the screw head is inserted and held in the socket, the clamp suddenly opens and the auger falls, . Thanks to the video signal with such a safe operation signal and simple clamping operation, the excavator pilot can perform auger screw replacement very conveniently and quickly.

Finally, the technical idea of the present invention is not limited to the above-described embodiments. In other words, those skilled in the art will recognize that the present invention may be embodied in many other specific forms without departing from its spirit or essential characteristics. But is naturally included in the technical scope of the present invention expressed in the claims.

Although the present invention has been described based on a crane boom capable of directly moving a drive socket to a boom or an auger machine equipped with an excavator boom, it is necessary to provide an image viewed from the center axis of the socket, Can be flexibly applied in any form regardless of the mounting platform and mounting method.

100: Excavator 110: Excavator boom 111: Attachment hole
150: crane 160: crane boom 161: lifting and lowering chain
200: auger unit
210: screw motor 211: speed reducer
212: Hose pulley 213: Rail
220: drive socket 221: hammer air supply pipe
222: drive shaft 223: screw head seat groove
224: cushioning material 225: adapter
240: Auger screw 241: Auger screw head
242: screw fixing groove 243: hammer air blowing pipe
244: Rotating edge bit 245: Hammer bit
250: Joint clamp 251: Joint housing
252: clamp drive module 253: clamp
254: clamp motor 255: worm & worm wheel
256: Rack & Pinion
260: image observer 261:
262: camera 263:
264: Communication antenna
270: Relay antenna

Claims (5)

delete delete delete A camera 262 that is connected to the attachment portion 261 and captures a downward view of the drive socket 220 viewed downward from the drive socket 220. The attachment portion 261 is configured to be attachable to the inside of the auger machine drive socket 220, And a communication antenna 264 connected to the image transmitter 263 and transmitting a video signal out of the drive socket 220. The image transmitter 263 transmits an image signal from the camera 262 to an external terminal, A joint clamp 250 for remote coupling with an image observer 260,
A joint housing (251) detachably coupled to an outer circumferential surface of the drive socket (220);
A relay antenna (270) disposed in the joint housing (251) for receiving a signal of the communication antenna (264) and relaying the signal to the outside;
A clamp drive module (252) mounted on the joint housing (251) and receiving a signal from the communication antenna (264) or the relay antenna (270) and performing a tightening and unclamping operation by remote control; And
The screw head 241 of the auger screw 240 which is coupled to the clamp driving module 252 and inserted into the drive socket 220 while being pushed into or out of the drive socket 220 is fixed or released A remote-controlled joint clamp (250) of an auger machine comprising a clamping (253) and an unclamping clamp (253). 5. The method of claim 4,
The clamp drive module 252 is composed of at least one pair of motor-driven modules facing each other at symmetrical positions with respect to the drive socket 220, and the worm-worm wheel-slidable idler gear-pinion- And a mechanism for amplifying the rotational motion of the motor in a reciprocating motion in order.

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