KR20120018408A - Blast hole down-drilling device for backhoe - Google Patents

Abstract

PURPOSE: A downward blasting and boring device is provided to enable use as an excavator to be able to be operated on mountains and enable downward boring work in a deep pit using a telescopic hydraulic cylinder. CONSTITUTION: A downward blasting and boring device comprises an excavator(100), a telescopic hydraulic cylinder(200), a lifting rod(300), a lifting body(400), an air compressor(500), and a boring machine. A bracket(201) is arranged on the upper end of the telescopic hydraulic cylinder, and a connecting plate is arranged on the lower end of the telescopic hydraulic cylinder. The bracket is formed to mount on the leading end of an excavator boom. The connecting plate is formed to connect and fix the lifting rod. The telescopic hydraulic cylinder flexibly operates by fluid pressure created at the excavator.

Description

Excavator Mounted Down Blasting Device {Blast hole Down-drilling Device for Backhoe}

The present invention relates to a blast hole downward drilling device, and more particularly, mounted on an excavator that can be operated even in rugged terrain such as a mountainous region, and cannot be directly accessed by an excavator using a telescopic hydraulic cylinder. The present invention relates to an excavator-mounted downward blasting device capable of drilling a blast hole downward in a narrow and deep pit.

In general, in order to install a steel tower, the anchor should be installed by digging down the place where the anchor is to be installed to form a pit and then working the reinforced concrete foundation.

The foundation work depends on the size of the steel tower, but it is often necessary to form a narrow and deep pit about 3m in diameter and up to 20m deep.

Conventionally, in order to form such a narrow and deep pit, by using a manual drilling machine such as a sinker (rocker), a worker (drilling hole) drills a plurality of blasting holes of about 2m depth, and by loading the explosives to blasting, about 2m once The pit is completed by repeatedly removing the rock.

In other words, depending on the depth of the pit to be dug, the worker is forced to go deeper together, and therefore the worker is directly exposed to the dust-filled, narrow and harsh working environment.

Due to such poor working environment, construction companies are having difficulty in obtaining professional manpower (rock drill).

Therefore, the present applicant did not need a professional manpower, was suitable for digging narrow and deep pits, and looked for equipment that was easy to operate even in the rugged mountainous terrain, but did not find the proper equipment.

Existing mechanical drilling machines are mainly for drilling in the horizontal direction, or equipment for drilling in the vertical direction is difficult to operate in most of the mountainous terrain, and in particular, it is necessary to perform downward drilling work for digging the narrow and deep holes required by the applicant. No equipment could be found.

Accordingly, the present invention is to solve the above problems, the object of the present invention,

1. Mounted on an excavator (Backhoe) so that it can be operated even in the rugged mountainous terrain, and can be replaced.

2. It is small in size and detachable, so it is relatively easy to transport even in rugged mountainous terrain.

3. It can approach the narrow and deep pit to drill the blast hole downward,

4. Without the rock drill, the pilot can drill while checking the rock work situation to be drilled, can work by positioning the perforator 600 to the position of each blasting hole accurately without the assistance of an assistant worker.

5. It provides an excavator-mounted downward blasting drilling device to optimize the drawing speed and depth of the drilling machine to protect the drilling machine and increase productivity and reduce operating expenses by quantifying working time.

Excavator-mounted downward blasting device of the present invention for achieving the above object, Excavator with a bucket removed from the outside of the pit to be excavated; A telescopic hydraulic cylinder having a bracket for attaching to an end of an excavator boom and having a connecting plate for connecting and fixing a platform at a lower end thereof, and extending and contracting by hydraulic pressure of the excavator; The upper end is provided with an upper plate fixed to the connecting plate, and the lower end is provided with a lower plate having an anti-vibration device for preventing lateral vibration of the drilling bit, and a rack gear is provided between the upper plate and the lower plate to elevate and lift the lifting body. A lift table attached in a vertical direction and having a guide groove formed along the left and right sides of the rack gear; A lifting body mounted with a guide rail corresponding to the guide groove, mounted with a pinion gear meshing with the rack gear, mounted with a hydraulic motor for driving the pinion gear, and equipped with a perforator; An air compressor for producing compressed air; It is mounted to the lifting body is configured to include a perforator to operate by receiving compressed air from the air compressor.

Here, a dust cap is attached to the lower plate of the platform to form a space at a bottom of the pit at a predetermined interval, and a fan is installed at one side of the dust cap to discharge dust generated during the drilling operation through the dust discharge duct. It is characterized by the configuration.

In addition, the lower plate of the platform is preferably installed so that the operator can monitor the drilling work by installing the internal lighting and the internal camera.

In addition, the lifting body can be configured to install a position sensor so that the operator can determine by measuring the depth of drilling.

In addition, the perforator may be configured to install a rotation speed measuring sensor so that the operator can monitor the rotation speed of the drill bit.

Preferably, the telescopic hydraulic cylinder can be extended up to about 10 ~ 25m, it may be configured to be contracted to about 3m.

In addition, the telescopic hydraulic cylinder may be configured to use a plurality of telescopic hydraulic cylinders connected in series / parallel.

In addition, the moving power of the lifting body 400 may be configured to transmit power by selecting any one of the chain between the hydraulic cylinder, air cylinder, gear.

In addition, the vibration preventing device 302 is attached to the lower plate 303 of the platform 300, the lower portion is characterized in that the buffer roller is attached.

As described above, the present invention is mounted on an excavator so that it can be operated even in a rugged mountainous terrain.

It is relatively small in size and detachable, so transportation is relatively easy.

By using telescopic hydraulic cylinders, it is possible to drill downwards in the depths of the pit, and drill blast holes without rock drilling.

By installing an internal camera and an internal lighting device, the pilot can check the progress of the drilling work directly in the cab.

In addition, by installing a position sensor on the lifting body fixed to the perforator and by allowing the operator to monitor it has the effect of checking the progress of the drilling operation in real time.

In addition, by installing a rotation speed measuring sensor that can know the rotation speed of the drilling bit in the drilling machine and allowing the operator to monitor it, it is possible to immediately check whether there is an abnormal operation of the drilling machine and cope with it, and improve work productivity by quantifying the working time. There is also an effect.

1 is a view showing working with an excavator-mounted downward blasting drilling apparatus according to an embodiment of the present invention,
Figure 2 is a side view showing an excavator mounted downward blasting drilling apparatus according to an embodiment of the present invention,
3 is an enlarged view showing the coupling relationship between the platform and the lifting body of the excavator-mounted downward blasting drilling apparatus according to an embodiment of the present invention,
4 is a view showing a state in which the platform of the excavator-mounted downward blasting device according to an embodiment of the present invention seated on the floor surface to be drilled.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 is a view showing working with an excavator-mounted downward blasting drilling apparatus according to an embodiment of the present invention, as shown, the excavator-mounted downward blasting drilling apparatus according to the present invention digging a pit with a narrow inlet and deep depth It can be effectively used for drilling the blast hole downward.

Figure 2 is a side view showing an excavator mounted blasting drilling apparatus according to an embodiment of the present invention, the excavator-mounted blasting drilling apparatus according to the present invention is an excavator 100, telescopic hydraulic cylinder 200, platform 300, The lifting body 400, the air compressor 500, and the perforator 600 is configured.

Excavator 100 is to perform a downward drilling operation in the state stopped at the outside of the pit for the anchor installation in the state of removing the bucket. In other words, as the pit deepens, the excavator 100 is not working into the pit together, but the excavator 100 is in a stopped state outside the pit.

Therefore, there is no problem of digging more than necessary pit as the equipment works together in the pit, it is easy to evacuate the equipment even when the explosives using explosives, and the amount of refres to be processed is significantly reduced. have.

The telescopic hydraulic cylinder 200 and the upper end is provided with a bracket 201 for mounting at the tip of the excavator boom 101, the lower end is provided with a connecting plate 202 for connecting and fixing the lifting platform 300 , Expansion and contraction operation by the hydraulic supply generated from the excavator (100).

The telescopic hydraulic cylinder 200 is preferably extended to about 10 ~ 25m, it is preferable to be able to shrink around 3m to facilitate transportation.

On the other hand, it is also possible to use the telescopic hydraulic cylinder 200 by connecting several telescopic hydraulic cylinders in series / parallel. That is, one telescopic hydraulic cylinder extends up to about 10 ~ 25m, it is somewhat difficult to be able to contract around 3m, so that both ends of the two or three telescopic hydraulic cylinders can be used to be firmly connected to each other.

The lifting platform 300 has an upper plate 301 fixed to the connecting plate 202 at an upper end thereof, and an anti-vibration device 302 for preventing vibration of the drilling bit 610 vibrating in the transverse direction. It is provided with a lower plate 303, and between the upper plate 301 and the lower plate 303, the rack gear 304 is elongated in the vertical direction to the elevating the lifting member 400 and the rack gear 304 The guide groove 305 is formed along the left and right sides of the guide groove 305.

In addition, the platform can be moved up and down by engaging the pinion gear 402 meshing with the rack gear 304 and at the same time by installing a hydraulic cylinder equivalent to the choice of those skilled in the art, or an air cylinder, a driven gear and a driven gear It is also possible to move up and down by hanging the chain between them.

The vibration preventing device 302 gently holds the lower part of the drilling bit 610 to prevent the drilling bit 610 rotating at a high speed from vibrating in the vertical direction (radiation direction) of the shaft at the time of forming the inlet of the first blast hole. In order to prevent the accidental break of the drilling bit 610 by reducing vibration even during the drilling operation, the lower plate of elastic material such as punched rubber, synthetic rubber, synthetic plastic, synthetic fiber, etc. Can be attached to the top of the.

3, the guide rail 401 corresponding to the guide groove 305 is attached to the lifting body 400, and the pinion gear 402 meshing with the rack gear 304 is mounted. In addition, a hydraulic motor 403 / electric motor (not shown) for driving the pinion gear 402 is mounted, and a perforator 600 is mounted. In addition, the motor for pinion gear operation can be operated by attaching an electric motor and an air motor.

The operation of the hydraulic motor 403 is operated by receiving hydraulic pressure from the excavator 100, therefore, the hydraulic motor 403 is rotated in accordance with the operation of the operator (excavator pilot) and thereby the pinion gear 402 is rotated The lifting body 400 is moved up and down along the guide groove 305 of the lifting platform (300).

The air compressor 500 generates compressed air for operating the puncher 600, and is installed outside the pit as shown in the drawing to supply compressed air to the puncher 600 through the air hose 501. Of course, the air compressor 500 may be mounted to the excavator 100 to facilitate the evacuation of the equipment during blasting.

The perforator 600 is mounted to the lifting body 400 and operates by receiving compressed air from the air compressor 500. Naturally, the lifting body 400 may be provided with a plurality of punching machines 600.

In addition, as shown in Figure 4, the lower plate 303 of the platform 300 is a dust cap 306 is attached to form a space between the bottom of the pit and the lower plate 303 at a predetermined interval, the dust cap It is preferable to install the ventilator 307 to one side of the 306 to configure the dust generated during the drilling operation through the dust discharge duct 308.

The dust discharged from the dust discharge duct may be discharged through a filter or attached to a collecting box for collecting through the filter to prevent air pollution.

In addition, the lower plate 303 of the platform 300 may be installed so that the operator can monitor the drilling operation in the cab by installing the internal light 309 and the internal camera 310. That is, the operator can check the progress of the drilling operation in the cab in real time.

Additionally, by installing an external light 309 'and an external camera 310' toward the upper plate 303 of the platform 300, the operator can configure the work situation in the overall pit in the cab.

In addition, the lower plate 303 of the platform 300 is attached to the bottom of the buffer roller (not shown) to prevent the drill bit 610 from being shaken by vibration, buffered by the amount and vibration amount of the drill bit The number and elastic force of the roller can be installed to vary. The cushioning roller fixed to the bottom of the bottom plate is all possible as long as it has an elastic force, and means that the perforated bit can be prevented from shaking by vibration, and is installed to absorb vibration by moving the fixed side to the bottom side from side to side.

In addition, the lifting member 400 is configured to measure the drilling depth and the drilling diameter by installing the position sensor 404 so that the operator can check in the operator's cab in which position how much work amount is made vertical / horizontal, drilling diameter Is to improve productivity by quantitative work environment management by immediately checking the degree of perforation and performing work order and preparation situation according to continuous work execution without any interruption.

The position sensor 404 may use a sensor using a sound wave or infrared rays, and by measuring the moving distance of the lifting member 400 can determine the depth of the punched bit 610.

In addition, the perforator 600 may be configured to install a rotation speed measuring sensor (not shown) so that an operator can monitor the rotation speed of the drilling bit 610. Such a rotation speed measurement sensor may be simply installed on the rotation shaft of the punching machine 600, so that detailed description thereof will be omitted.

The number of revolutions of the drilling bit 610 is maintained constant during the drilling (of course, there is a slight variation, but it remains almost constant). Although the operator (pilot) who works in the cab does not know the condition of the rock, when the drilling bit 610 is caught or broken in the rock, it detects a sudden change in the rotation and adjusts the rotation speed. The depth of inlet and the speed of inlet can be adjusted. In addition, by monitoring this, the operator can respond quickly and optimize the inlet speed and depth of the inlet drill to protect the perforator and increase productivity by measuring work time and reduce operating expenses.

In the above description, only the movement of the elevating body 400 up and down along the elevating platform 300 is made by the rack gear 304 and the pinion gear 402, but the elevating body 400 through the other way It is also possible to move. For example, the moving power of the elevating body 400 can be obtained from the hydraulic cylinder or the air cylinder, or by elevating by elevating the elevating body 400 to the chain by installing a gear up and down the elevating platform 300 and connecting the chain. Sieve 400 may be moved up and down.

Referring to the operation of the excavator-mounted blast hole downward drilling apparatus according to the present invention having such a configuration as follows.

First, the pilot boarded on the excavator 100 moves the boom 101 of the excavator 100 and lowers the telescopic hydraulic cylinder 200 so that the platform 300 is positioned at a position to drill the blast hole.

According to the concept that the position of the lifting platform 300 is correct, the pilot starts the drilling operation by operating the drilling machine 600 and driving the lifting body 400 downward with the hydraulic motor 403.

At this time, the excavator pilot can check through the monitor whether the perforator 600 is operating smoothly, and how deep the perforation progressed.

When one blasting hole is completed, the lifting body 400 is advanced upward with the hydraulic motor 403, and the drilling bit 610 is pulled out of the blasting hole, and the telescopic hydraulic cylinder 200 is also lifted slightly to prepare for movement to the next blasting work position. And position the platform 300 in the next blasting position. In addition, the blasting hole may be adjusted to match the drilling bit 610 according to the working environment and conditions when one or more at the same time working.

By repeating such a series of processes, the work time can be quantified by completing the blast hole downward drilling work for one blasting, and thus, a smooth work management can be achieved.

Now, a process of digging a pit using an excavator-mounted downward blasting drilling apparatus according to the present invention having the configuration as described above will be briefly described.

Once the place to install the anchor is determined, the excavation using the excavator 100 is equipped with a bucket (not shown) until the rock is exposed.

When the rock is exposed and the blasting work is required, the blast hole having a diameter of about 3 cm and a depth of about 2 m is drilled at intervals of 40 to 50 cm using the downward drilling device according to the present invention. At this time, the adjustment of the interval is adjusted to be constantly arranged with the help of the assistant worker.

The pilot on board the excavator 100 can check in real time the progress of the drilling operation on the monitor (whether the drilling is being carried out smoothly or how much the drilled depth is in real time), and the position of each blast hole accurately without the assistance of an assistant operator. The perforator 600 may be positioned with a furnace.

When the drilling is completed, the explosive expert goes down into the pit and loads the explosives into each blasting hole. When the loading is completed, the explosives are blasted after evacuating workers and equipment to a safe place.

After blasting, remove the refuse to form a pit.

Thereafter, by repeatedly performing the series of operations as described above, a pit of a desired width and depth can be completed.

It is to be understood that the above description is merely illustrative of one embodiment, and the present invention is not limited to the above-described embodiment, and various modifications may be made within the scope of the appended claims. For example, the shape and structure of each component specifically shown in the embodiments of the present invention can be modified and implemented.

Excavator-mounted downward blasting device of the present invention, not only can be used in the blast hole downhole drilling work for vertical pit excavation for the installation of anchors for steel towers, but also the blast hole downward drilling for digging narrow and deep pit not easy access of equipment Can be used for work.

100 excavator 101 excavator boom
200 Telescopic Hydraulic Cylinder 201 Bracket
202 connecting plate 300 platform
301 Top plate 302 Damping device
303 Bottom 304 Racks
305 Guide groove 306 Dust cap
307 Ventilator 308 Dust Exhaust Duct
309 Internal Lighting 310 Internal Camera
309 'exterior lighting 310' exterior camera
400 lifting body 401 guide rail
402 Pinion Gear 403 Hydraulic Motor
404 Position Sensor 500 Air Compressor
501 Air Hose 600 Drill
610 perforated bits

Claims (9)

Excavator 100 is removed from the bucket working outside the pit to be excavated;
The upper end is provided with a bracket 201 for mounting to the tip of the excavator boom 101, the lower end is provided with a connecting plate 202 for connecting the platform 300, and is stretched by the hydraulic pressure of the excavator 100 A telescopic hydraulic cylinder 200;
The upper end has an upper plate 301 fixed to the connecting plate 202, the lower end has a lower plate 303 having an anti-vibration device 302 for preventing the lateral vibration of the drilling bit 610, and the upper plate 301 Rack platform 304 for elevating the elevating body 400 is vertically attached between the lower plate and the lower plate 303, the lifting platform 300, the guide groove 305 is formed along the left and right of the rack gear 304;
A guide rail 401 corresponding to the guide groove 305 is attached, a pinion gear 402 engaged with the rack gear 304 is mounted, and a hydraulic motor 403 for driving the pinion gear 402 is mounted. And the lifting body 400 is mounted to the punching machine 600;
An air compressor 500 for supplying compressed air;
A perforator 600 mounted to the lifting body 400 and operating by receiving compressed air;
Excavator mounted downward blasting drilling device configured to include.
The method of claim 1,
The lower plate 303 of the platform 300 is attached to the dust cap 306 so as to form a space between the bottom of the pit and the lower plate 303 at a predetermined interval, install a fan 307 to one side of the dust cap 306. Excavator-mounted downward blasting drilling device characterized in that configured to discharge through the filter through the dust discharge duct 308 dust generated during the drilling operation.
The method of claim 2,
The lower panel 303 of the platform 300 is provided with an internal lighting 309 and an internal camera 310 so that the operator can monitor the drilling work, and the external lighting 309 'toward the upper panel 303 of the platform. Excavator-mounted downward blasting device characterized in that the worker is installed to monitor the working situation in the pit by installing an external camera (310 ').
The method of claim 1,
Lifting body 400 is an excavator-mounted downward blasting drilling apparatus, characterized in that configured by the operator to determine the position by measuring the drilling depth.
The method of claim 1,
Drill 600 is an excavator-mounted downward blasting drilling device, characterized in that configured to enable the operator to monitor the number of revolutions of the drilling bit 610 by installing a rotation speed measurement sensor (not shown).
The method of claim 1,
Telescopic hydraulic cylinder 200 is an excavator-mounted down-blasting drilling device, characterized in that it is possible to extend up to about 10 ~ 25m, and to contract to about 3m.
The method of claim 1,
Telescopic hydraulic cylinder 200 is an excavator-mounted downward blasting drilling device characterized in that to use a plurality of telescopic hydraulic cylinders connected in series / parallel.
The method of claim 1,
Excavator-mounted downward blasting drilling device, characterized in that the moving power of the lifting member 400 to transmit power by selecting any one of the chain between the hydraulic cylinder, air cylinder, gear.
4. The method according to any one of claims 1 to 3,
Excavator anti-vibration device 302 is attached to the upper plate 303 of the lifting platform 300, the bottom surface is equipped with an excavator-type downward blasting drilling apparatus, characterized in that attached.

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