KR100683260B1 - Air supply device-improved multi hammer for excavation and air dispersing device of multi hammer - Google Patents

Abstract

The present invention relates to a ground hammer multi-hammer for improved air supply structure and an air dispersing device for the same.

According to the invention, the joint is connected to the rotational force providing means and the air supply means of the ground excavator; An air tank communicating with the air supply means through the joint and having an inner space through which the supplied air can be dispersed; A hammer body coupled to a lower portion of the air tank; A plurality of striking members installed in the hammer body at a predetermined interval and pressurized by air delivered through a spout passage after being dispersed in the air tank to selectively descend; And a plurality of bits respectively mounted to a plurality of bit mounting holes formed in the hammer body so as to correspond to the striking member, and striking by the striking member to provide excavation force in the ground direction. do.

Further, according to the present invention, the joint is connected to the rotational force providing means and the air supply means of the ground excavator; A hammer having a first ejection passage corresponding to an air inlet of the joint, at least one second ejection passage provided around the first ejection passage, and a striking space communicating with the first ejection passage and the second ejection passage Body; A housing interposed between the joint and the hammer body; It is installed inside the housing so as to be interposed between the air inlet and the first jet passage, to block and reflect the air directly supplied to the first jet passage to generate a vortex inside the housing, while the second jet An air dispersing member having a passage for guiding the air in the vortex state through the first jet passage at the same pressure as the passage; A plurality of striking members installed in the hammer body at predetermined intervals and selectively lowered in the striking space by being pressurized by air delivered through the ejection passages; And a plurality of bits respectively mounted to a plurality of bit mounting holes formed in the hammer body so as to correspond to the striking member, and striking by the striking member to provide excavation force in the ground direction. Is initiated.

According to another aspect of the invention, the joint is connected to the rotational force providing means and the air supply means of the ground excavator, a first jet passage corresponding to the air inlet of the joint, at least one or more agents provided around the first jet passage A hammer body provided with a blowout passage communicating with the second ejection passage, the first ejection passage and the second ejection passage, a housing interposed between the joint and the hammer body, and selectively pressurized by the air An air dispersing device mounted to a ground drilling multi-hammer having a plurality of descending striking members and a bit striking by the striking member to provide excavating force in the ground direction, wherein the air dispersing device is disposed between the air inlet and the first ejection passage. It is installed inside the housing so as to be interposed in and to block and reflect the air directly supplied to the first jet passage and Vortex generating unit for inducing the generation of the flow; And a support part providing a passage for guiding air through the first jet passage at the same pressure as the second jet passage.

Description

Ground supply multi-hammer with improved air supply structure and air dispersing device for same {} air supply device-improved multi hammer for excavation and air dispersing device of multi hammer}

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to.

1 is a cross-sectional view showing the configuration of the ground hammer multi-hammer according to an embodiment of the present invention.

Figure 2 is a cross-sectional view showing the configuration of the ground hammer multi-hammer according to another embodiment of the present invention.

3 is a perspective view showing the configuration of an air dispersing apparatus provided according to the present invention;

4 is a cross-sectional view taken along line IV-IV ′ of FIG. 3.

5 is a perspective view illustrating a modification of FIG. 3.

6 is a perspective view showing another configuration of the air dispersing apparatus provided according to the present invention;

<Description of Major Reference Marks in Drawing>

100 ... Joint 200,200 ', 200 "... Air Dissipation Member

300 Hammer body 400 Strike member 500 bit

The present invention relates to a multi-hammer and an air dispersing apparatus for the same, and more particularly, to a ground excavation multi-hammer and an air dispersing apparatus having a structure in which high-pressure air provided from the ground excavator is uniformly transmitted to a plurality of bits. It is about.

The multi-hammer receives the rotational force and high-pressure air from the ground excavator to rotate as a whole and simultaneously strike the ground to excavate the soil layer and the rock layer.

Such a multi-hammer, the hammer body formed with a bit mounting hole at a predetermined interval, the inside of the hammer body, the piston to move up and down by air, and is mounted to the bit mounting hole to receive the impact force of the piston to excavate the ground It is common to have a configuration with a plurality of bits.

Referring to the operation of the multi-hammer, the hammer body is rotated by the rotational force transmitted from the ground excavator through a predetermined joint, and at the same time, the impact force is transmitted to the bit by continuously repeating the lifting motion by the high pressure air Perform excavation work.

However, in the conventional ground drilling multi-hammer, each jet passage of the hammer body with respect to the air inlet of the joint is configured to be connected through a predetermined air line one by one, not only the configuration of the device is complicated, but also Since it is not easy to design the ejection pressure uniformly, there is a problem in that excessive blow force or a weak blow force is applied to a specific bit.

The present invention has been made to solve the above problems, by installing an air tank into which the high-pressure air flows, multi-earth excavation that can be uniformly supplied to the plurality of ejection passages of the air circulated in the air tank The purpose is to provide a hammer.

Another object of the present invention is to provide a ground hammer multi-hammer that can supply a plurality of bits of air of a uniform pressure by forming a vortex with respect to the air to be supplied.

In order to achieve the above object, the present invention is provided with an air tank or vortex generating means in the ground drilling multi-hammer to provide air to each bit evenly, to provide a multi-hammer that can perform the drilling operation smoothly.

The multi-hammer according to an embodiment of the present invention, the joint is connected to the rotational force providing means and the air supply means of the ground excavator, the internal communication with the air supply means via the joint, the supplied air can be dispersed A plurality of air tanks having a space, a hammer body coupled to the lower part of the air tank, and a plurality of which are installed at predetermined intervals in the hammer body, and are pressed down by air delivered through the blowout passage after being dispersed in the air tank And a plurality of bits mounted to the plurality of bit mounting holes formed on the hammer body so as to correspond to the two striking members and the striking members, respectively, and striking by the striking member to provide an excavation force in the ground direction.

Preferably, a plurality of ejection passages are provided to correspond to the striking member, and each of them is in communication with the air tank.

In addition, the multi-hammer according to another preferred embodiment of the present invention, the joint is connected to the rotational force providing means and the air supply means of the ground excavator, the first jet passage corresponding to the air inlet of the joint, and around the first jet passage A hammer body provided with at least one or more second ejection passages, a blow space communicating with the first ejection passage and the second ejection passage, a housing interposed between the joint and the hammer body, and between the air inlet and the first ejection passage Installed in the housing so as to be interposed therebetween, the air supplied directly to the first ejection passage is blocked and reflected to generate vortices within the housing, while vortex flows through the first ejection passage at the same pressure as the second ejection passage. Air dispersing member having a passage for inducing air to be ejected, and is installed at a predetermined interval in the hammer body, and is transmitted through the blowing passages Mounted to a plurality of bit mounting holes formed on the hammer body so as to correspond to the plurality of striking members and the striking members which are selectively pressed down in the striking space, and are hit by the striking members to provide excavation force in the ground direction. It includes a plurality of bits.

Here, the air dispersing member supports the vortex generating unit and the vortex generating unit which induces the generation of the vortex by blocking and reflecting the air from the air inlet to the first ejection passage, while a part of the vortex is introduced into the first ejection passage. And a support consisting of at least two supports spaced apart from one another to form a retractable passageway.

In addition, the air dispersing member supports the vortex generating unit and the vortex generating unit which induces the generation of the vortex by blocking and reflecting air from the air inlet to the first ejection passage, while a part of the vortex may flow into the first ejection passage. And at least two supports disposed spaced apart from one another to form a passageway therein.

Preferably, the vortex generating portion is characterized in that the opposing face of the air inlet is curved concave or the opposing face of the air inlet is flat.

According to another aspect of the invention, the joint is connected to the rotational force providing means and the air supply means of the ground excavator, the first jet passage corresponding to the air inlet of the joint, at least one or more second jets provided around the first jet passage A hammer body provided with a striking space communicating with the passage, the first ejection passage and the second ejection passage, a housing interposed between the joint and the hammer body, and a plurality of striking members selectively pressurized by air and descending within the striking space And an air dispersing device mounted on the ground excavation multi-hammer having a bit hit by the striking member and providing a drilling force in the ground direction, the air dispersing device being installed inside the housing so as to be interposed between the air inlet and the first ejection passage. It is similar to the vortex generator and the second jet passage which induces the generation of vortices by blocking and reflecting the air directly supplied to the first jet passage. An air distribution apparatus including a support portion to provide a passage leading to the air is ejected through the first ejection passage is provided with a pressure.

Preferably, the support portion is a tubular structure in which a plurality of through-holes are formed in communication with the first ejection passage and through which a portion of the vortex can flow, or the support portion is a portion of the vortex flowing into the first ejection passage. At least two supports are arranged spaced apart from each other to form a passageway.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a cross-sectional view showing the configuration of a ground hammer multi-hammer according to an embodiment of the present invention.

Referring to FIG. 1, the multi-hammer 10 includes a joint 100 connected to a rotational force providing means (not shown) and an air supply means (not shown) of a ground excavator, and communicates with the joint 100 to an internal space. An air tank 200 provided with a 210, a hammer body 300 coupled to a lower portion of the air tank 200, a striking member 400 installed inside the hammer body 300, and the striking member ( It includes a plurality of bits 500 mounted to the hammer body 300 to correspond to 400.

The joint 100 has a predetermined fastening structure and an air inlet 110 connected to the rotational force providing means and the air supply means of the ground excavator as a medium for supplying rotational force and air to the multi-hammer 10.

The air tank 200 is provided with an internal space 210 for dispersing air introduced through the joint 100 to prevent the air from being unevenly escaped through a specific jet passage 310. That is, the air supplied to the air tank 200 is dispersed and circulated in the internal space 210 and uniformly ejected through the ejection passage 310 formed in the hammer body 300.

The hammer body 300 is coupled to the lower portion of the air tank 200, the inside is provided with a blowout passage 310 in communication with the air tank 200. In this case, a plurality of ejection passages 310 are provided at regular intervals to correspond to the number of bits 500.

The striking member 400 is installed to correspond to the ejection passage 310 provided at a predetermined interval in the hammer body 300, and communicates with the air tank 200 and the ejection passage 310. The air dispersed in the air tank 200 is delivered to the jet passage 310, in which case the striking member 400 is pressurized by the delivered air to selectively lift.

The bit 500 is mounted to a plurality of bit mounting holes formed in the hammer body 300 to correspond to the striking member 400, and is hit by the striking member 400 to provide an excavation force in the ground direction.

Next, the operation of the multi-hammer according to an embodiment of the present invention will be described.

First, after placing the multi-hammer in the position to be excavated, supplying rotational force and high pressure air to the joint 100, the hammer body 300 rotates and at the same time the striking member 400 inside the hammer body 300 The lifting and lowering is continuously performed, and the impact force is transmitted to the bit 500 to excavate the ground. At this time, the high-pressure air supplied through the air inlet 110 of the joint 100 flows into the air tank 200. The air introduced into the air tank 200 circulates inside the air tank 200. It is uniformly distributed and supplied to the plurality of jet passages 310 provided in the hammer body 300.

Next, the air uniformly introduced into the jet passage 310 provides a striking force to the striking member 400 installed to correspond to each jet passage 310 to continuously lift and move, and of the striking member 400 The lifting movement transmits a striking force to the bit 500 coupled to the lower end thereof to enable excavation work.

2 is a cross-sectional view showing the configuration of the ground hammer multi-hammer according to another embodiment of the present invention.

Referring to FIG. 2, the multi-hammer 10 ′ includes a joint 100 connected to a rotational force providing means and an air supply means of the ground excavator, and a first jet corresponding to the air inlet 110 of the joint 100. Between the passage 310a, the second jet passage 310b provided around the hammer body 300, the hammer body 300 coupled to the lower portion of the air tank 200, and the joint 100 and the hammer body 300 A housing 200 ′ interposed in the housing 200 ′, an air dispersing member 220 provided in the housing 200 ′, a striking member 400 coupled to a lower portion of the hammer body 300, and the It includes a plurality of bits 500 formed on the hammer body 300 to correspond to the striking member 400.

The hammer body 300 includes a first jet passage 310a corresponding to the air inlet 110 of the joint 100 and at least one second jet passage 310b provided around the first jet passage 310a. Included, the impact space is provided in communication with the first and second jet passage 310.

Here, the air dispersion member 220 is installed inside the housing 200 so as to be interposed between the air inlet 110 and the first jet passage 310a, and blocks the air directly supplied to the first jet passage 310a. And a reflection to generate a vortex inside the housing 200, and to induce vortex air to be ejected through the first jet passage 310a at the same pressure as the second jet passage 310b.

Looking at the configuration example of the air dispersion member 220 in detail.

3 and 4 are a perspective view and a cross-sectional view of the air dispersion member according to a preferred embodiment of the present invention.

Referring to FIG. 3, the air dissipation member 220 includes a vortex generating unit 221 which induces the generation of vortices by blocking and reflecting air from the air inlet 110 toward the first ejection passage 310a, and the vortices. The support part 222 of the tubular structure which supports the generation part 221 and communicates with the 1st jet passage 310a, The circumferential surface is provided with the some through-hole 223 through which a part of said vortex flows. It includes.

The vortex generator 221 has a shape in which a surface opposing the air inlet 110 is concavely curved, and a support 222 is coupled to a lower portion thereof. At this time, the vortex generating unit 221 is shown in a concave curved surface facing the air inlet, the shape is not limited to this, the air inlet as shown in the vortex generating unit 221 ′ shown in FIG. The surface opposite to 110 may be flat.

The support part 222 is coupled to the vortex generating part 221 at an upper part thereof and is opened at a lower part thereof, and a plurality of through holes 223 are provided at a side thereof. At this time, it is preferable to have a relatively wide structure toward the bottom so that the air circulated through the support 222 smoothly flows along its circumferential surface.

Here, the support 222 is not devoted to the tubular structure, as shown in Figure 6, at least two or more supports if the structure that can form a passage through which a portion of the vortex flows into the first jet passage (310a) ( 222 "may be arranged to be spaced apart from each other.

As described above, various types of air dispersing members 220, 220 ', and 220 "serve to disperse air supplied from the air inlet 110 of the joint. First, when air is introduced into the housing 200', The air is blocked and reflected by the vortex generators 221, 221 ′, and 221 ″ to generate vortices, some of which circulate inside the housing 200, and then the second ejection passage 310b or the vortex generators 221, 221 ′. After passing through the passages provided in the lower support portions (222, 222 ') is ejected through the first jet passage (310a).

Therefore, the high pressure air introduced into the housing 200 is not directly transmitted from the air inlet 110 to the first jet passage 310a, but is dispersed through the vortex generators 221 and 221 ', and then the first and second air flows. Since it exits to the jet passage 310, a uniform jet may be made.

Next, the operation of the multi-hammer according to another embodiment of the present invention will be described.

First, after placing the multi-hammer in the position to be excavated, supplying rotational force and high pressure air to the joint 100, the hammer body 300 rotates and at the same time the striking member 400 inside the hammer body 300 The lifting and lowering is continuously performed, and the impact force is transmitted to the bit 500 to excavate the ground. At this time, the high-pressure air supplied through the air inlet 110 of the joint 100 is introduced into the housing 200 ', and thus the air introduced into the housing 200' is a jet passage in the hammer body 300 ( It does not flow directly into the 310, but hits the vortex generators 221, 221 ', 221 "of the air dispersion member 220 provided in the housing 200' is blocked and reflected to generate a vortex. The vortices of the air generated therein are dispersed in the housing 200 ', and a part of the air is blown into the first jet passage 310a through a passage provided in the support part 222 of the air dispersion member 220, and a part of the air flows in the second jet passage 310a. It is ejected to the blowing passage 310b and as a result the supply of air is made uniform.

Next, the air uniformly introduced into the jet passage 310 provides a hitting force to the hitting member 400 coupled to correspond to each jet passage 310, the hitting member 400 is coupled to the lower end Excavation work is made by transmitting a striking force to the bit 500.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and the present invention will be described by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

According to the present invention, the air dispersion device is provided to uniformly supply air to each ejection passage, so that the plurality of bits can be operated uniformly, and the excessive durability of the bits can be prevented from being applied to specific bits. There is an advantage to improve.

In addition, each bit is operated by receiving a uniform blow force can minimize noise and vibration during excavation work.

Claims (12)

A joint connected to the ground force providing means and the air supply means of the ground excavator; An air tank communicating with the air supply means through the joint and having an inner space in which the supplied air can be dispersed; A hammer body coupled to a lower portion of the air tank; A plurality of striking members installed in the hammer body at a predetermined interval and pressurized by air delivered through a spout passage after being dispersed in the air tank to selectively descend; And And a plurality of bits respectively mounted to a plurality of bit mounting holes formed in the hammer body so as to correspond to the striking member, and striking by the striking member to provide an excavation force in the ground direction. The ejection passage is provided with a plurality in order to correspond to the striking member, the ground drilling multi-hammer multi-hammer, characterized in that the air supply structure, characterized in that the communication with each of the air tank. delete A joint connected to the ground force providing means and the air supply means of the ground excavator; A hammer body provided with a first ejection passage corresponding to an air inlet of the joint, a second ejection passage provided around the first ejection passage, and a strike space communicating with the first ejection passage and the second ejection passage; A housing interposed between the joint and the hammer body; It is installed inside the housing so as to be interposed between the air inlet and the first jet passage, to block and reflect the air directly supplied to the first jet passage to generate a vortex inside the housing, while the second jet An air dispersing member having a passage for guiding the air in the vortex state through the first jet passage at the same pressure as the passage; A plurality of striking members installed in the hammer body at predetermined intervals and selectively lowered in the striking space by being pressurized by air delivered through the ejection passages; And A plurality of bits respectively mounted to a plurality of bit mounting holes formed in the hammer body so as to correspond to the striking member, and striking by the striking member to provide an excavating force in the ground direction; Excavation multi hammer. The method of claim 3, wherein the air dispersion member, A vortex generating unit for inducing generation of vortices by blocking and reflecting air from the air inlet to the first jet passage; And And a tubular structure supporting part of the vortex generating unit and communicating with the first jet passage, the circumferential surface of which is formed a plurality of through holes through which a part of the vortex can flow. Ground hammer for improved construction. The method of claim 3, wherein the air dispersion member, A vortex generating unit for inducing generation of vortices by blocking and reflecting air from the air inlet to the first jet passage; And An air supply structure comprising: a support part supporting the vortex generating part and supporting parts spaced apart from each other to form a passage through which a part of the vortex flows into the first jet passage; Ground hammer multi-hammer. The method according to claim 4 or 5, In the vortex generating section, the ground hammer excavation multi-hammer with improved air supply structure, characterized in that the concave surface facing the air inlet is concave. The method according to claim 4 or 5, In the vortex generating unit, the ground hammer multi-hammer with improved air supply structure, characterized in that the opposite surface to the air inlet is flat. A joint connected to the rotational force providing means and the air supply means of the ground excavator, a first ejection passage corresponding to the air inlet of the joint, a second ejection passage provided around the first ejection passage, the first ejection passage and the first A hammer body provided with a striking space communicating with the two ejection passages, a housing interposed between the joint and the hammer body, a plurality of striking members pressurized by the air and selectively descending in the striking space, and the striking member An air dispersing apparatus mounted on a multi-drill for drilling a ground having a bit that is hit by the ground and provides a drilling force in the ground direction, A vortex generating unit installed inside the housing so as to be interposed between the air inlet and the first jet passage to block and reflect air directly supplied to the first jet passage to induce vortex generation; And Air dissipation for ground drilling multi-hammer including an improved air supply structure comprising a; support for providing a passage for guiding air through the first jet passage at the same pressure as the second jet passage; Device. The method of claim 8, The support portion communicates with the first jet passage, and has a tubular structure formed with a plurality of through-holes through which a portion of the vortex flows on the circumferential surface of the ground excavation improved multi Air disperser for hammers. The method of claim 8, The support unit is an air dispersing device for the ground drilling multi-hammer with an improved air supply structure, characterized in that the support is arranged to be spaced apart from each other to form a passage through which a portion of the vortex flows into the first jet passage . The method according to claim 9 or 10, In the vortex generating unit, the air dispersing device for the ground drilling multi-hammer with improved air supply structure, characterized in that the opposite surface to the air inlet is curved concave. The method according to claim 9 or 10, In the vortex generating unit, the air dispersing device for the ground drilling multi-hammer with improved air supply structure, characterized in that the surface facing the air inlet is flat.

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