Wire saw equipment for excavators

Abstract

The wire saw device for an excavator of the present invention includes a support plate, an excavator connection part connected to the support plate and removably connected to an excavator arm, a pair of guide rails connected to the support plate, a lifting member that rises and falls along the pair of guide rails, an electric motor that raises and lowers the lifting member, a drive pulley rotated by a hydraulic motor connected to the lifting member, a plurality of driven pulleys attached to the support plate, and wires attached to the drive pulley and the plurality of driven pulleys.

Description

[Technical field]

[0001] The present invention relates to a wire saw device for an excavator, and more particularly to a wire saw device for an excavator that is attached to an excavator and cuts rocks, rough stones, concrete, metals, etc. to desired standards depending on the purpose and place of use. [Background technology]

[0002] Generally, stones that are processed by mining raw stones are widely used in the construction industry as construction materials for buildings and civil engineering works, etc. For example, they are processed into products such as building walls, road boundary stones, sidewalk blocks, and building bases.

[0003] Such stones are extracted in large rectangular shapes from stone mountains by businesses that have been granted permission to damage forests, and then transported to stone processing companies, where they are cut to the appropriate thickness and area and provided as slab stone themselves, or further cut to the desired specifications and then surface-treated before being provided.

[0004] As described above, examples of methods for extracting raw stones from a stone mine include a jet burner extraction method using a jet burner, a drilling machine, and explosives, and a wire saw extraction method using a wire saw, a drilling machine, and explosives.

[0005] Among the above, the jet burner extraction method involves removing the soil and rocks using equipment such as an excavator, drilling holes in the raw rock (rock) using an air compressor and a drilling machine (a drill for making holes), filling them with explosives, and then blasting the rock to extract the raw rock. Alternatively, once the rock is formed, the size of the raw rock is determined, and a jet burner (oil is used to ignite the air compression burner), cutting both sides of the rock lengthwise while burning the rock, and then drilling blasting holes vertically and horizontally on the back and bottom sides that were not cut with a jackhammer (equipment for drilling blasting holes), filling them with explosives, and blasting the rock. The rock is then drilled and blasted according to size to break the rock into large pieces (large pieces), which are then further broken into smaller pieces.

[0006] This jet burner extraction method requires the use of a large amount of diesel fuel, which causes problems of air pollution and additional costs. It also requires the installation of separate large equipment and compressors, which generates a lot of noise, and when high-pressure heat is generated, the air pressure scatters stone powder, generating a large amount of dust, which is a major environmental problem.

[0007] Among the above, the wire saw extraction method involves determining the size of the stone (rock) and drilling vertically and horizontally with a longitudinal drilling machine to form an L-shaped connecting vertical and horizontal hole. The wire saw is then lengthened and passed through the drilled hole, after which it is cut by rotating while being pulled by a pulling machine at both ends. The back and bottom of the rough stone that was not cut are drilled and then exploded with explosives.

[0008] This wire saw cutting method has the advantages of being environmentally friendly, minimizing noise generation, not using diesel (oils), and suppressing scattering of dust, but it has the disadvantages of reducing working conditions and cutting efficiency, and taking a long time to extract.

[0009] In particular, the wire saw method requires the installation of a separate fixed pulley in the cutting direction on the rough to be cut, which is troublesome, and in particular, a wire saw machine must be provided to cut the rough, which is inconvenient due to the work involved.

[0010] Furthermore, the wire saw machine must be positioned in the direction of cutting the rough stone, which makes the work difficult and inconvenient. Summary of the Invention [Problem to be solved by the invention]

[0011] The present invention aims to provide a wire saw device for an excavator which is configured so that the wire saw can rotate 360 ​​degrees and can be used by rotating the wire saw body via a link even after it is attached to the excavator, thereby reducing the additional work time required to reinstall the wire saw and enabling smooth extraction of raw materials or cutting concrete, etc.

[0012] Another object of the present invention is to provide a wire saw device for an excavator that can maintain wire tension by raising and lowering the drive pulley according to the cutting speed during cutting or rough cutting, thereby enabling smooth cutting. [Means for solving the problem]

[0013] In order to achieve the above-mentioned object, the wire saw device for an excavator of the present invention includes a support plate, an excavator connection part connected to the support plate and removably connected to an excavator arm, a pair of guide rails connected to the support plate, a lifting member that rises and falls along the pair of guide rails, an electric motor that raises and lowers the lifting member, a drive pulley rotated by a hydraulic motor connected to the lifting member, a plurality of driven pulleys attached to the support plate, and wires attached to the drive pulley and the plurality of driven pulleys.

[0014] The lifting member may further include a pair of auxiliary pulleys mounted on both front sides thereof to guide the movement of the wire.

[0015] The actuator may further include a lead screw rotatably mounted between the support plate and the pair of guide rails, and the electric motor may rotate the lead screw forward and backward.

[0016] The apparatus may further include support frames extending upward from the upper surface of the support plate on both sides of the pair of guide rails, and having upper ends to which the pair of guide rails are coupled.

[0017] The electric motor may be sealably mounted within a control box disposed on an upper surface of the support frame.

[0018] The lifting member may include a pair of rail holes through which the pair of guide rails pass, and a screw hole into which the lead screw is inserted and engaged.

[0019] The excavator connecting portion may include a fastening plate portion having a plurality of fastening holes formed therein so that the angle at which it is installed on the support plate can be changed, a pair of bracket portions extending upward from the fastening plate portion, and a pair of connecting pins mounted at different heights between the pair of bracket portions and connected to the excavator arm.

[0020] The hydraulic piping connected to the excavator may pass through the control box and be connected to the hydraulic motor, and the control box may further include a flow control device inside the control box for controlling the flow rate of fluid flowing through the hydraulic piping. Effect of the Invention

[0021] According to the wire saw device for an excavator of the present invention described above, it is configured so that it can be easily attached to and detached from the excavator arm for use, so that the time required for setting up the wire saw can be shortened.

[0022] In addition, since the excavator can rotate 360 ​​degrees via the excavator connecting link, vertical cutting and horizontal cutting operations (cutting operations) can be carried out efficiently.

[0023] The wire tension is maintained by raising and lowering the drive pulley according to the cutting speed, so that cutting operations of concrete, rock, etc. can be carried out smoothly. [Brief description of the drawings]

[0024] [Figure 1] 1 is a front perspective view showing a wire saw device for an excavator according to an embodiment of the present invention; [Diagram 2]1 is a rear perspective view showing a wire saw device for an excavator according to an embodiment of the present invention; [Diagram 3] 1 is a side perspective view showing a wire saw device for an excavator according to an embodiment of the present invention; [Figure 4] FIG. 2 is a partial perspective view showing a lower portion of the wire saw device for an excavator. [Diagram 5] FIG. 2 is an enlarged partial perspective view showing a lifting member of the wire saw device for an excavator. [Figure 6] 2 is a schematic diagram showing a configuration of a control unit of the wire saw device for an excavator. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] The present invention can be modified in various ways and can have various embodiments, but a detailed description will be given by illustrating specific embodiments. However, this is not intended to limit the present invention to a specific embodiment, and it should be understood that the present invention includes all modifications, equivalents, and alternatives within the spirit and technical scope of the present invention.

[0026] The terms used in the present invention are merely for describing specific embodiments and are not intended to limit the present invention. A singular expression includes a plural expression unless otherwise clearly indicated in the context. In the present invention, the terms "include" or "have" are intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood not to preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0027] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the accompanying drawings, the same components are denoted by the same reference numerals as much as possible. Also, detailed descriptions of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some components are exaggerated, omitted, or shown in outline in the accompanying drawings.

[0028] Figure 1 is a front oblique view showing a wire saw apparatus for an excavator according to one embodiment of the present invention, Figure 2 is a rear oblique view showing a wire saw apparatus for an excavator according to one embodiment of the present invention, Figure 3 is a side oblique view showing a wire saw apparatus for an excavator according to one embodiment of the present invention, and Figure 4 is a partial oblique view showing the lower part of the wire saw apparatus for an excavator.

[0029] The wire saw device 100 for an excavator of the present invention includes a support plate 110, an excavator connection part 120 connected to the support plate and removably connected to the excavator arm, a pair of guide rails 140 connected to the support plate, a lifting member 160 that rises and falls along the pair of guide rails, an electric motor 210 that raises and lowers the lifting member, a drive pulley 180 rotated by a hydraulic motor 170 connected to the lifting member, a number of driven pulleys 190 attached to the support plate, and a wire 101 attached to the drive pulley and the number of driven pulleys.

[0030] The wire saw device 100 for an excavator of the present invention is detachably connected to an excavator arm, and is a device for cutting rocks, rough stones, concrete, metals, etc. with a wire having diamond beads at predetermined intervals on its outer circumferential surface.

[0031] The support plate 110 may be made of a substantially rectangular metal plate having a predetermined thickness. The support plate 110 serves as a base frame that supports the entire wire saw device 100.

[0032] The excavator coupling part 120 can be fastened and coupled to the support plate 110 via a plurality of bolts. By hooking the end of the arm of the excavator onto this excavator coupling part 120, the wire saw device 100 can be detachably coupled to the excavator arm.

[0033] The pair of guide rails 140 may be joined by welding or screwing to the upper surface of the support plate 110. The two guide rails 140 may be arranged vertically and elongated on the upper surface of the support plate 110 and may be arranged at a predetermined interval from each other. The guide rails 140 may be in the form of a circular pipe with a smooth outer circumferential surface.

[0034] A support frame 130 may be configured to extend upward from the upper surface of the support plate 110 outside the pair of guide rails 140. The support frame 130 may include a pair of column frame parts that are vertically welded and coupled to the upper surface of the support plate 110, and a rectangular plate-shaped upper plate frame part that is horizontally welded and coupled to upper ends of the pair of column frame parts. Thus, the upper ends of the pair of guide rails 140 may be fastened or welded to the upper plate frame part.

[0035] The lifting member 160 is slidably mounted on the pair of guide rails 140 and can be raised and lowered along the pair of guide rails 140. To this end, the lifting member 160 may be formed with a pair of rail holes into which the pair of guide rails 140 are slidably inserted.

[0036] The lifting member 160 can be raised and lowered by an electric motor 210. The electric motor 210 can be mounted on the upper plate frame portion of the support frame 130.

[0037] The driving pulley 180 may be mounted so as to be rotated by a hydraulic motor 170 coupled to the lifting member 160. As shown in Fig. 3, a motor bracket 163 may be connected and extended from the front upper side of the lifting member 160, and the hydraulic motor 170 may be mounted on the motor bracket 163. The rotating shaft of the hydraulic motor 170 may be connected to the driving pulley 180 to rotate the driving pulley 180 forward and backward. A pair of hydraulic hoses connected to a hydraulic pump of an excavator may be connected to the hydraulic motor 170, so that the hydraulic motor 170 may be operated by the excavator.

[0038] The plurality of driven pulleys 190 may be mounted on the front of the support plate 110. To this end, a pulley mounting part 114 in the form of a square pipe is coupled to the front surface of the support plate 110, and the plurality of driven pulleys 190 may be rotatably mounted on the pulley mounting part 114. In the illustrated embodiment, the plurality of driven pulleys 190 may be arranged at a predetermined interval on the front left side of the support plate 110, two on the front right side.

[0039] A length of wire 101 with diamond beads may be attached to a drive pulley 180 and a number of driven pulleys 190. The wire 101 may be rotated by the drive pulley 180 and the number of driven pulleys 190 to cut an object.

[0040] It is preferable that the lifting member 160 further includes a pair of auxiliary pulleys 185 mounted on both sides of the front of the lifting member 160 to guide the movement of the wire 101. As shown in Fig. 3, a pulley bracket 165 is connected to and extends from the front lower side of the lifting member 160, and a pair of auxiliary pulleys 185 can be rotatably mounted on both sides of the front of the pulley bracket 165.

[0041] 1, the drive pulley 180 can be formed much larger than the auxiliary pulley 185 and the driven pulley 190. The wire 101 hung on the upper side of the drive pulley 180 can extend downward through the inner driven pulley 190, the auxiliary pulley 185, and the outer driven pulley 190 in sequence. The downward extending wire 101 is arranged to surround the object to be cut, and when the lifting member 160 rises, the drive pulley 180 and the auxiliary pulley 185 also rise together, thereby keeping the wire 101 taut.

[0042] In addition, a cover member 164 surrounding the driving pulley 180 may be provided on the upper part of the driving pulley 180. As shown in Fig. 3, the cover member 164 may be fixedly coupled to the motor bracket 163. During operation, water or oil may be sprayed onto the driving pulley 180 to cool the driving pulley 180 and the wire 101 and clean foreign matter. At this time, the cover member 164 may prevent the water or oil containing foreign matter from splashing out around the driving pulley 180.

[0043] 1 and 2, a lead screw 150 may be rotatably mounted between the support plate 110 and the pair of guide rails 140. The lead screw 150 has a square or trapezoidal helical thread formed on the outer circumferential surface of a rotation shaft, and may be disposed between the pair of guide rails 140. A lower end of the lead screw 150 may be mounted on a bearing provided on the upper surface of the support plate 110, an upper end of the lead screw 150 may be mounted on a bracket bearing mounted between the pair of guide rails 140, and an upper end of the lead screw 150 may penetrate an upper plate frame part of the support frame 130 and be coupled to an electric motor 210. The electric motor 210 is a motor capable of forward and reverse rotation, and may raise and lower the lifting member 160 and the hydraulic motor 170 and driving pulley 180 coupled thereto by rotating the lead screw 150 forward and reverse.

[0044] 2, the electric motor 210 may be directly connected to the lead screw 150, or a reducer 220 may be connected to the electric motor 210, and the lead screw 150 may be connected to the reducer 220. The reducer 220 reduces the rotational speed of the electric motor 210, so that even if a relatively small input torque is input to the electric motor 210, the lead screw 150 can be rotated with a large output torque.

[0045] The electric motor 210 may be airtightly mounted inside a control box 200 disposed on the upper surface of the support frame 130. The control box 200 may be in the form of a rectangular box and may be fastened or welded to the upper surface of the upper plate frame part of the support frame 130. A through hole through which the rotation shaft of the electric motor 210 passes may be formed on the lower surface of the control box 200. As shown in FIGS. 1 and 2, the control box 200 includes a box body 201 having an open front and rear surface, and a front cover 203 and a rear cover 205 may be fastened and coupled to the open front and rear surfaces of the box body 201 by a plurality of screws. In addition, a lifting hook 207 may be integrally formed on the upper end of the rear surface of the box body 201. The wire saw device 100 may be lifted and moved by inserting a hook of a crane into the lifting hook 207.

[0046] FIG. 5 is an enlarged partial perspective view showing a lifting member of the wire saw device for a drilling machine.

[0047] The lifting member 160 may include a pair of rail holes through which the pair of guide rails 140 pass, and a screw hole into which the lead screw 150 is inserted and engaged. The pair of rail holes may be formed to surround the pair of guide rails 140, respectively, and the screw hole may be formed in a bracket portion integrally formed between two rail hole forming portions. The bracket portion may include a plurality of reinforcing ribs integrally connected between the two rail hole forming portions and the screw hole forming portion.

[0048] The rail hole has a smooth inner peripheral surface, while the screw hole has a thread formed on its inner peripheral surface that corresponds to the thread of the lead screw 150. Therefore, when the lead screw 150 rotates, the lifting member 160 is lifted and lowered by the lead screw 150 and can be supported without rotation by the pair of guide rails 140. When the rotation of the lead screw 150 stops, the lifting member 160 is prevented from descending from its height by the thread of the lead screw 150 and can be supported so as to maintain its position.

[0049] As best shown in FIG. 4, the excavator connection part 120 may include a fastening plate part 121 having a plurality of fastening holes formed therein so that the angle at which it is installed on the support plate 110 can be changed, a pair of bracket parts 123 extending upward from the fastening plate part, and a pair of connecting pins 125 mounted at different heights between the pair of bracket parts and connected to the excavator arm.

[0050] The fastening plate 121 is formed in a disk shape and may have four or more fastening holes formed therethrough. The support plate 110 may also have four or more fastening holes corresponding to the fastening holes of the fastening plate 121, so that the fastening plate 121 may be coupled to the support plate 110 by fastening a plurality of bolts. In addition, by rotating the fastening plate 121 to be fastened, the rotational position of the fastening plate 121 coupled to the support plate 110 may be easily changed.

[0051] The pair of bracket parts 123 may be vertically welded and coupled to both sides of the upper surface of the fastening plate part 121. A pair of pin holes into which a pair of coupling pins 125 are inserted and mounted may be formed at the upper end of each bracket part 123. The two pin holes may be formed at different heights.

[0052] The pair of connecting pins 125 can be attached by being inserted into the respective pin holes of the pair of bracket parts 123. The pair of connecting pins 125 can be arranged parallel to each other at different heights. By hanging a pair of hooks provided at the end of the excavator arm on the pair of connecting pins 125 and fixing them, the wire saw device 100 can be very easily attached to the excavator arm.

[0053] FIG. 6 is a schematic diagram showing the configuration of a control unit of the wire saw device for an excavator.

[0054] The hydraulic piping 250 connected to the excavator 10 passes through the control box 200 and is connected to the hydraulic motor 170, and the control box 200 may further include a flow control device 240 inside the control box 200 for controlling the flow rate of fluid flowing through the hydraulic piping 250.

[0055] The hydraulic piping 250 may include an inflow hose flowing from the excavator 10 into the inside of the control box 200, and an outflow hose flowing from the inside of the control box 200 to the excavator 10. The hydraulic piping 250 may also include an inflow hose flowing into the hydraulic motor 170, and an outflow hose flowing out from the hydraulic motor 170.

[0056] A flow control device 240 is provided inside the control box 200 and may be connected to hydraulic piping 250. The flow control device 240 may constitute a flow control circuit including one or more flow control valves.

[0057] Although not shown, the wire saw device 100 of the present invention may further include a remote control connected by wire or wirelessly to the control box 200. By operating the remote control of the wire saw device 100 attached to the excavator arm, a user can adjust the rotation direction and rotation speed of the hydraulic motor 170 with the flow control device 240, and can maintain the tension of the wire 101 by rotating the electric motor 210 forward and backward to raise and lower the lifting member 160.

[0058] According to the wire saw device for an excavator of the present invention, it is configured so that it can be easily attached and detached from the excavator arm for use, thereby reducing the time required to set up the wire saw.

[0059] In addition, since it can rotate 360 ​​degrees via the excavator connecting link, vertical and horizontal cutting operations (cutting operations) can be carried out efficiently.

[0060] The wire tension is maintained by raising and lowering the drive pulley according to the cutting speed, so that cutting operations of concrete, rock, etc. can be carried out smoothly.

[0061] Although one embodiment of the present invention has been described above, a person having ordinary knowledge in the art may modify and change the present invention in various ways by adding, changing, deleting or adding elements without departing from the concept of the present invention described in the claims, and this can also be said to be within the scope of the claims of the present invention. [Industrial Applicability]

[0062] The excavator wire saw device according to the present invention can be used industrially for cutting concrete structures, rocks, etc. at construction sites. [Explanation of symbols]

[0063] 10. Excavator 100 Wire saw device for excavator 101 Wire 110 Support plate 114 Pulley mounting part 120 Excavator connection part 121 Fastening plate part 123 Bracket part 125 coupling pin 130 Support Frame 140 Guide rail 150 Lead Screw 160 Lifting member 163 Motor bracket 164 Cover member 165 Pulley bracket 170 Hydraulic Motor 180 Drive pulley 185 Auxiliary pulley 190 Driven pulley 200 Control Box 201 Box body 203 Front cover 205 Rear cover 207 Lifting hook 210 Electric Motor 220 Reducer 240 Flow Control Device 250 Hydraulic piping

Claims

1. A support plate; an excavator coupling part coupled to the support plate and detachably coupled to an excavator arm; A pair of guide rails coupled to the support plate; a support frame extending upward from the upper surface of the support plate on both sides of the pair of guide rails, the pair of guide rails being coupled to upper ends of the support frame; a lead screw rotatably mounted between the support plate and the pair of guide rails; a lifting member including a pair of rail holes through which the pair of guide rails pass and a screw hole into which the lead screw is inserted and engaged, the lifting member lifting and lowering along the pair of guide rails; an electric motor that is sealably mounted inside a control box that is disposed on the upper surface of the support frame and that raises and lowers the lifting member; a hydraulic motor attached to a motor bracket connected to a front upper side of the lifting member; A drive pulley connected to a rotary shaft of the hydraulic motor and capable of rotating forward and reverse; Two pairs of driven pulleys are attached to the front left and front right sides of the support plate; A pair of auxiliary pulleys are attached to both sides of a front surface of a pulley bracket connected to a front lower side of the lifting member; a wire mounted so as to extend from the drive pulley through an inner driven pulley, an auxiliary pulley, and an outer driven pulley in sequence, the movement of the wire being guided by the auxiliary pulley; 23. A wire saw device for an excavator comprising:

2. A wire saw device for an excavator as described in claim 1, characterized in that the screw hole is formed in a bracket portion integrally formed between two rail hole forming portions.

3. A wire saw device for an excavator as described in claim 2, characterized in that the bracket portion has a plurality of reinforcing ribs integrally connected between the two rail hole forming portions and the screw hole forming portion.

4. A wire saw device for an excavator as described in claim 1, characterized in that hydraulic piping connected to the excavator passes through the control box and is connected to the hydraulic motor.

5. The excavator coupling portion is a fastening plate portion having a plurality of fastening holes formed therein so that the angle at which the fastening plate is installed can be changed; A pair of bracket portions extending upward from the fastening plate portion; The wire saw device for a drilling machine according to claim 1, further comprising: a pair of connecting pins mounted at different heights between the pair of bracket parts and connected to an arm of the drilling machine.

6. The wire saw device for a drilling machine according to claim 4, further comprising a flow control device disposed inside the control box for controlling a flow rate of a fluid flowing through the hydraulic piping.

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