KR20190092030A - Excavating apparatus with integrated structure for rapidity rock excavation - Google Patents

Abstract

The present invention relates to an excavation apparatus having an integrated structure for rapid bedrock excavation, which can split and crush bedrock while excavating bedrock to be split. More specifically, the excavation apparatus having an integrated structure for rapid bedrock excavation comprises a rock splitting part inserted into a rock splitting space formed on bedrock to be excavated, and having an appearance expanded in the rock splitting space in a wedge structure to split or crush the bedrock.

Description

Excavating apparatus with integrated structure for rapidity rock excavation

The present invention relates to an excavation device having an integrated structure for rock excavation that can continuously divide and fracture rock while drilling the rock to be rocked through one device.

In general, excavators widely used in construction work sites can be diversified by installing various optional attachments including unique buckets installed on the excavator according to the buyer's requirements. These optional tools are intended to be mounted on the arm of the excavator by means of fastening pins and fastening clamps.

In addition, the rock drilling method is mainly blasting method, mechanical drilling using a power breaker (Power breaker).

However, the blasting method causes a very loud noise, vibration, dust, etc., and is not particularly used in urban areas except for special cases.

At this time, the excavation method generally used in the downtown is a power breaker method is used to crush the rock by mounting a hydraulic breaker to the excavator by hitting the chisel on the excavation surface to crush the rock.

However, this method also causes a complaint because the noise and shock vibration is relatively large, which is not suitable for the long-term work of the city.

In addition, the conventional rock excavation method has a problem such that the work is inefficient by performing the rock drilling, haul and loading, etc. with different equipment, and if there is no free surface, haul work is impossible.

Republic of Korea Utility Model Registration No. 20-0317939 Republic of Korea Patent Registration No. 10-1014793

Therefore, the present invention has been made in order to solve the above problems, by drilling the rock rock target rock through one device to continuously divide and crush the rock by the rapid rock excavation excellent in the quickness, convenience and economic efficiency of work It is an object of the present invention to provide an excavation device having an integrated structure.

As a means for solving the above problems, an excavation device (hereinafter, referred to as an "excavation device") having a unitary structure for rapid rock excavation of the present invention is inserted into a haul space formed in a rock to be excavated, and is formed as a wedge structure. It is characterized in that it comprises a; a rock-like portion that expands in the rock-like space to divide or fracture the rock.

As one example, the halal portion, the width of the cross section is configured to become smaller toward the bottom and the expansion module for lifting in the vertical direction; And a plurality of unit modules divided by forming a plurality of cutout portions in a vertical direction and having an internal space corresponding to the shape of the expansion module, and transversal between the mutual unit modules according to the insertion depth of the expansion module inserted into the internal space. It may be configured to include; flow modules spaced apart in the direction distance.

As an example, the arm portion may include a cylinder casing having a lifting space and an opening through which the expansion module passes; And a piston for elevating and driving in the vertical direction by hydraulic pressure, pneumatic pressure or hydraulic pressure in the lifting space of the cylinder casing, wherein the expansion module is coupled to the lower end of the piston and integrally interlocks with the piston. According to the elevating drive of the cylinder casing may be drawn out from the lifting space downward through the opening or upwards toward the lifting space, the flow module, the edge of the opening is larger than the diameter of the opening along the edge of the upper end Is formed so that the upper end is located in the lifting space of the cylinder casing can be configured to be movable along the transverse direction.

As an example, the drilling device of the present invention is connected to the front of the rock portion spaced apart and the drilling portion for drilling a rock to be excavated to a predetermined depth to form a rock rock space; may further comprise a.

In addition, the excavation device of the present invention may further include a water supply pipe penetrating each of the center portion of the cylinder casing, the piston and the flow module in the vertical direction and communicate with the drilling portion to supply the high pressure water to the drilling portion. .

As an example, the perforation part may include a waterjet housing rotatably provided in front of the arm portion, a pair of waterjet nozzles and a plurality of drill bits provided in front of the waterjet housing, wherein the waterjet housing is provided in front of the water jet housing. A front flow passage formed on a diameter line and a side flow passage connected to the front flow passage and formed on a side of the water jet housing, wherein the pair of water jet nozzles are spaced apart at equal intervals on both sides of a central axis of the water jet housing. It is provided on the front flow path and the spraying direction is configured to be inclined 20 to 70 degrees in the direction crossing each other in the direction parallel to the central axis of the waterjet housing, the high pressure while the rock is perforated by the high pressure water sprayed from the pair of waterjet nozzles Rock jetted by water jet perforations with a number of reaction forces and simultaneously unperforated by the drill bit This can be configured to be perforated.

The excavating device of the present invention by the above-described solution, there is an advantage that the work can be divided and crushed continuously while drilling the rock to be rocked through one device, it is excellent in the speed, convenience and economy of work.

1 is a perspective view showing the configuration of a rock rock according to an embodiment of the present invention.
Figure 2 is a side cross-sectional view showing an operating state of the haul portion according to an embodiment of the present invention.
Figure 3 is a side cross-sectional view showing the configuration of an excavation device according to an embodiment of the present invention.
Figure 4a to 4e is a side cross-sectional view showing an operating state of the excavation device according to an embodiment of the present invention.
Figure 5 is a side cross-sectional view for explaining the structure of the perforated portion according to an embodiment of the present invention.
6 is a view showing the bottom of the perforation shown in FIG.
FIG. 7 is a cross-sectional view taken along the line AA ′ of FIG. 5; FIG.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

1 is a perspective view showing the configuration of a haul portion according to an embodiment of the present invention, Figure 2 is a side cross-sectional view showing an operating state of the haul portion according to an embodiment of the present invention.

Excavation device 10 of the present invention is a perforated part 20 for drilling the excavated rock, and integrally mounted at a position spaced apart from the lower end of the perforated part 20 and the perforated part 20 in the perforated space It is configured to include a rock-like portion 30 is inserted into the continuous and divided or crushed rock.

Referring to FIG. 1, the stony portion 30 is inserted into the stony space 11 formed in the rock to be excavated to divide or crush the rock, and is inserted into the stony space 11 along the perforated portion 20. In particular, it is composed of a wedge structure in order to halve the rock by the appearance gradually expands in the rock space (11).

For example, the halal unit 30 may be configured to include an expansion module 300 to expand the appearance and a flow module 310 for expanding the expansion module 300.

The expansion module 300 has a width of the cross section is configured to become smaller toward the bottom and may have a wedge structure that is elevated in the vertical direction.

The flow module 310 may accommodate the expansion module 300 having an inner space 311 corresponding to the shape of the expansion module 300 and descending toward the inner space 311.

In addition, the flow module 310 may be composed of a plurality of unit modules 312 divided by forming a plurality of cutting portions (a) in the vertical direction.

In FIG. 1, the cutting part (a) is composed of a pair, and two unit modules 312 are symmetrically divided, but divided according to the cutting part (a) and the cutting part (a). The number of unit modules 312 can be arbitrarily set.

Here, the flow module 310 is not limited in shape, but may preferably be configured in a hexahedron shape having one or more sides rather than a cylindrical shape.

The flow module 310 may be spaced apart the lateral distance between the mutual unit module 312 in accordance with the insertion depth of the expansion module 300 is inserted into the internal space 311, the expansion of this flow module 310 As a result, the rock mass can be divided or crushed in the rock formation space 11.

That is, according to the structure of the rock-like portion 30 according to the present embodiment, the outer surface of the expansion module 300 and the inner surface of the flow module 310 have a taper shape having the same slope as each other. When the module 300 is lowered and inserted into the internal space 311 of the flow module 310 and the expansion module 300 is inserted beyond the set threshold depth, the unit module 312 of the flow module 310 They are to be gradually spaced apart in a mutually outward direction with respect to the incision site (a), and by this expansion is to press the side of the adjacent rock mass to perform the rock treatment process.

The rock arm 30 according to an embodiment of the present invention may further include a driving means for providing a lift drive for the flow module 310.

For example, the driving means may include a cylinder casing 320 and a piston 330 as shown in FIG.

The cylinder casing 320 has a lifting space 321 through which the piston 330 and the expansion module 300 can move up and down, and an opening 322 through which the expansion module 300 can pass is provided at the bottom thereof. Formed.

The cylinder casing 320 is provided with an inlet / outlet 323 communicating with the lifting space 321 may be connected to an external pump, the selected one of the hydraulic pressure, pneumatic or hydraulic pressure provided from the pump is the lifting space 321 to act on the pressure.

The piston 330 is driven up and down in the vertical direction by the pressure acting in the lifting space 321 of the cylinder casing (320).

Although not illustrated in the drawing, the piston 330 is provided with a piston ring having a tapered shape or a convex center in the outer circumferential surface of the cylinder casing 320 in contact with the inner surface thereof. Make contact and maintain confidentiality during hoist operation.

In addition, the driving means may further include a control unit (not shown) for controlling the pump, the control unit is the piston 330, the rising and falling of the intersection in the lifting space 321 of the cylinder casing 320 By controlling the pressure of the pump to be repeated so as to repeatedly apply the pressure and impact by the rock portion 30 in the perforated haul space (11) to perform the haul process for the rock more easily and efficiently Do it.

Referring to FIG. 2, the expansion module 300 is coupled to the lower end of the piston 330 and integrally interlocks with the piston 330. The opening of the cylinder casing 320 is driven by the lifting and lowering of the piston 330. Through the 321, the lifting space 321 may be drawn out downward or toward the lifting space 321.

At this time, the flow module 310 is formed along the rim of the upper end of the engaging edge 313 larger than the diameter of the opening 321, the upper end formed with the engaging edge 313 is the lifting of the cylinder casing 320 Positioned in the space 321 to be able to move along the transverse direction, to prevent the separation of the flow module 310 and to guide the movement to be made stably.

3 is a side cross-sectional view showing a configuration of an excavation device according to an embodiment of the present invention, Figure 4a to 4e is a side cross-sectional view showing an operating state of the excavation device according to an embodiment of the present invention. 5 is a side cross-sectional view illustrating a structure of a perforation part according to an exemplary embodiment of the present invention, FIG. 6 is a view illustrating a bottom surface of the perforation part illustrated in FIG. 5, and FIG. 7 is A of FIG. 5. -A 'Cross section.

Excavation device 10 of the present invention may include a punched portion 20 which is integrally coupled with the arm portion 30 as mentioned above.

The perforation part 20 is connected to the front of the rock portion 30 to be spaced apart to form a rock-cavity space 11 by drilling the excavation target rock to a predetermined depth.

The perforations 20 may be variously applied by applying a known technique, but in the present invention, the vibration and the vibration that may occur when the perforation is applied by applying a water jet principle configured to inject high pressure water as an example. It is desirable to be configured to minimize noise.

As described above, the haul portion 30 is connected to the rear end of the perforation portion 20 and inserted into the haul space 11 formed by the perforation portion 20 to perform a haul process for the rock to be excavated. As a result, the perforation and the haul can be carried out continuously through one device, thereby shortening the construction time.

At this time, the excavation device 10 according to an embodiment of the present invention may be provided with a supply means for supplying the high-pressure water to the drilling portion 20 from the outside, the cylinder casing 320 and the piston 330 And a water supply pipe 40 penetrating the central portion of the flow module 310 to communicate with the perforation portion 20.

Meanwhile, the perforation part 20 of the present embodiment may be configured to minimize noise and vibration by applying a water jet principle configured to inject high pressure water.

Specifically, the punching portion 20 is located in front of the halal portion 30 is operated by the high pressure water supplied through the water supply pipe 40 to puncture the rock through high-speed rotation, Figure 5 to As shown in FIG. 7, the water jet housing 210, a pair of water jet nozzles 220 provided in front of the water jet housing 210, and a plurality of drill bits 230 disposed in front of the water net housing 210. ).

The water jet housing 210 includes a front flow path 240 formed on the front diameter line and a side flow path 250 connected to the front flow path 240 and formed on the side of the water jet housing 210. The waterjet nozzles 220 are spaced at equal intervals on both sides of the center of the waterjet housing 210 and are provided on the front flow path 240.

The front passage 240 and the side passage 250 are used as a discharge passage for outflowing the dark powder generated during the drilling operation to the outside, but may be configured to communicate with the discharge line introduced from the outside although not shown in the drawings. Preferably, the water supply pipe 40 is configured in the form of a double pipe and to be discharged through the double pipe of the water supply pipe (40).

The pair of waterjet nozzles 220 are sprayed with high-pressure water in a mutually staggered direction, the rock is perforated by the high-pressure water and at the same time the perforated portion 20 is driven to rotate by the reaction force of the high-pressure water, a plurality of Undrilled rock is drilled by drill bit 230.

Therefore, the jetting direction of the waterjet nozzle 220 is inclined at a predetermined angle with the plane passing through the central axis of the drilling portion 20, wherein the jetting direction is 20 to 70 degrees in the direction parallel to the central axis of the waterjet housing 210, preferably Preferably it is inclined 30 to 60 degrees, most preferably 40 to 50 degrees.

In other words, the rock is perforated by the high pressure water sprayed in the opposite direction from the pair of waterjet nozzles 220, and the perforated portion 20 rotates by the reaction force of the high pressure water, and the bottom of the perforated portion 20 during this rotation. The rock which is not perforated by the formed drill bit 230 is to be perforated (crushed).

Here, when the angle of the spraying direction of the pair of waterjet nozzles 220 is increased, the perforation part 20 is well rotated, but the perforation direction is too outward, and when the angle of the spraying direction is reduced, the perforation part 20 Since the rotation is not smooth and eventually drilling is disadvantageous by the drill bit 230, it is preferable to select the angle of the injection direction within the range defined above.

In addition, a waterjet line for supplying high pressure water to the pair of waterjet nozzles 220 may be provided. Such a waterjet line is not shown in the drawing, but the water supply pipe 40 penetrates the halve portion 30. The water jet nozzle 220 may communicate with the water jet nozzle 220 by flowing through the perforation part 20.

The perforation part 20 may be screwed to the halter portion 30 at the front end, the rotary shaft 260 is provided with a flow passage in the center in communication with the waterjet line in the center, and is provided in front of the rotary shaft 260 Preventing high pressure water leakage by being made of a bush 270 to prevent high pressure water leakage and a bearing 159 provided on the circumferential side of the rotating shaft 260 to be independently rotatable at the front end of the arm portion 30 At the same time smooth rotation is possible.

In this case, the high pressure water used in the drilling process by the punching unit 20 may be supplied from an ultra high pressure water jet (UHP) power pack.

The ultra high pressure water power pack is connected to the water jet line so that the high pressure water is supplied and sprayed to the punching section 20.

As an example, the UHP Power pack for generating high pressure water can generate a high water pressure of 3,000 bar or more and a flow rate of 30 l / min or more, and each of the perforations 20 has a flow rate of 6 to 7 l / min. It is good to supply.

At this time, by supplying high pressure water to the punching unit 20, the pressure of the high pressure water used for the haul work is set to about 1,500 bar to enable drilling and haul work as an ultra high pressure power pack without a separate hydraulic device.

In addition, the perforated part 20 has a waterjet nozzle 220 formed at an end thereof, and a repulsive force acts by high pressure water of about 8 kgf sprayed in opposite directions during high pressure injection, and the revolving shaft 260 The rotational force is generated around).

In addition, the bush 270 formed on the rotating shaft 260 prevents leakage of high pressure water, and the bearing 280 provides a structure for smooth rotation, and the number of nozzles is two when the rock is drilled through the waterjet nozzle 220. In the water jet nozzle 220, the perforation part 20 rotates and perforates the entire area to form a circular halve space.

In particular, the drill bit 230 interlocked with the high-pressure water injection rotates to blow and pulverize the protruding portion that is not punctured by the high-pressure water, thereby increasing the drilling speed of the waterjet drilling in combination with mechanical drilling rather than pure waterjet. .

That is, the drilling speed of the drilling portion 20 is generally about 500mm / min based on Φ 60mm, this speed is smaller than the hydraulic crawler drill drilling speed, but higher than the pneumatic drilling machine, and is a rotary core generally used for rock rock It is much faster than 50mm / min of drill.

In general, the reason why the core drill is lowered in speed than the hydraulic crawler drill having a high drilling speed is that the insertion of the arm portion 30 to be drilled with a smooth drilling diameter is convenient, and the haul is well adhered, so that the smooth haul is possible. The perforation part 20 of the first uses a water jet rotating at high speed, unlike the conventional crawler drill to minimize the disturbance of the rock caused by hitting, so it is possible to secure a smooth form of perforation, and the second perforator after re-inserting the rock drill Unlike the general construction method, the haul is performed simultaneously with the drilling, so the state of the drilling diameter has little effect on the haul process, and it is possible to perform very efficient haul operation compared to the general haul method.

Perforated rock powder (debris) is to be discharged out through the discharge line installed in the perforated portion 20 to the rock portion 30. Conventionally, crawler drills discharge the drilled rock dust using high pressure air, but unlike the crawler drill drilling depth of several to several tens of meters, the present invention has a very short drilling diameter of about 500 mm, thus enabling smooth discharge without using high pressure air. In addition, since the high-pressure water jet is injected, the powder can be easily discharged together with the discharged water.

In the above, although the punching unit 20 has been described as an example of a water jet structure using high pressure water, the present invention is not limited thereto, and various well-known drilling methods such as hydraulic type may be applied.

Hereinafter, with reference to Figures 4a to 4e will be described the operating state of the excavation device 10 of the present invention.

First, as shown in FIG. 4A, the excavation apparatus 10 of the present invention is placed on an excavation rock, and then the excavation apparatus 10 is lowered so that the perforations 20 face the ground.

As shown in FIGS. 4B and 4C, the excavation apparatus 10 is gradually moved to a predetermined depth while supplying the high pressure water through the water supply pipe 40 to the drilling portion 20 to operate the drilling portion 20. The lowering and the perforation process is performed to the planned depth through the rotational drive of the perforator 20.

After the completion of the drilling process by the drilling unit 20 to the planned depth, the operation of the drilling unit 20 is stopped by stopping the supply of high pressure water from the water supply pipe 40 in a state where the drilling apparatus 10 is fixed. At the same time, the hydraulic pressure or the pneumatic pressure or the hydraulic pressure is supplied to the lifting space 321 of the cylinder casing 320 through an external pump, so that a pressure acts on the lifting space 321, and the piston 330 ) And the expansion module 300 connected to the piston 330 may be drawn out downward through the opening 322 of the cylinder casing 320.

As shown in FIG. 4D, a part of the extension module 300 drawn out is inserted into the internal space 311 of the flow module 310. When the pump is controlled to adjust the supply amount of hydraulic pressure or pneumatic pressure, the expansion module is controlled. Since the insertion depth of the 300 can be adjusted, the depth of the expansion module 300 is gradually lowered during the haul process, that is, the depth at which the outer surface of the expansion module 300 and the inner surface of the flow module 310 are in contact with each other. Pressure is applied to the lifting space 321 to exceed.

When the expansion module 300 is inserted to exceed the set threshold depth, the unit modules 312 of the flow module 310 are expanded to be spaced apart from each other in the outward direction with respect to the incision (a), and by this expansion By pressing the side of the adjacent rock masses it is possible to rock the target rock.

At this time, as described above, by repeatedly raising and lowering the position of the expansion module 300 to apply a repeated pressurization and impact by the rock portion 30 in the rock space 11 to perform a rock formation process on the rock. It can be done more easily and efficiently.

Thereafter, when the rock-molding process is completed, the hydraulic or pneumatic or hydraulic pressure supplied to the lifting space 321 of the cylinder casing 320 is recovered to raise the expansion module 300 connected to the piston 330 and the piston 330. In addition, after the flow module 310 is returned to its original state, the excavation apparatus 10 is raised to separate from the punched haul space 11.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

10: excavation device of the present invention 20: drilling part
30: rock part 40: water supply pipe
200: haul space 300: flow module

Claims (6)

Is inserted into the rock-like space formed in the rock to be excavated, the wedge structure is expanded to the outer shape in the rock-like space to split or fracture the rock; excavation device having an integrated structure for rock rapid excavation comprising a; .
The method of claim 1,
The hahal portion,
An expansion module configured to be smaller in width toward a lower portion of the cross section and to be elevated in a vertical direction; And
The transverse direction between the mutual unit modules according to the insertion depth of the expansion module is inserted into the inner space while consisting of a plurality of unit modules divided by having a plurality of incisions in the vertical direction having an internal space corresponding to the shape of the expansion module Excavation device having an integrated structure for rock rapid excavation comprising a; flow module spaced apart.
The method of claim 2,
The hahal portion,
A cylinder casing having a lifting space and having an opening through which the expansion module can pass;
And a piston for lifting and lowering in the vertical direction by hydraulic pressure, pneumatic pressure, or hydraulic pressure in the lifting space of the cylinder casing.
The expansion module,
It is coupled to the lower end of the piston and interlocked integrally with the piston and is drawn out from the lifting space downward or through the opening of the cylinder casing in accordance with the lifting drive of the piston, or drawn upwards toward the lifting space,
The flow module,
Excavation device having an integrated structure for rapid rock excavation, characterized in that the engaging edge is formed larger than the diameter of the opening along the edge of the upper end is movable in the transverse direction while the upper end is located in the lifting space of the cylinder casing .
The method of claim 3, wherein
The drilling device having a unitary structure for rock rapid excavation further comprising a; drilling portion to be spaced apart in front of the rock portion and to drill the excavated rock to a predetermined depth to form a rock rock space.
The method of claim 4, wherein
An integral structure for rapid rock excavation further comprising a water supply pipe that penetrates each of the centers of the cylinder casing, the piston and the flow module in a vertical direction, and communicates with the drilling portion to supply the high pressure water to the drilling portion. Having excavation device.
The method of claim 4, wherein
The perforation part,
It includes a water jet housing rotatably provided in front of the arm portion, a pair of water jet nozzle and a plurality of drill bits provided in front of the water jet housing,
The water jet housing includes a front flow passage formed on a diameter line of the front side, and a side flow passage connected to the front flow passage and formed on a side of the water jet housing.
The pair of waterjet nozzles are spaced at equal intervals on both sides of the central axis of the waterjet housing and provided on the front flow path, and the spraying direction thereof is inclined 20 to 70 degrees in a direction crossing each other in a direction parallel to the central axis of the waterjet housing. Is composed,
The rock is drilled by the high pressure water sprayed from the pair of water jet nozzles while the water jet drilling unit rotates with the reaction force of the high pressure water, and at the same time, the unperforated rock is drilled by the drill bit. Excavation device with a structure.

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