KR102350034B1 - Apparatus decreasing piling noise and pile driving apparatus and manufacturing method of apparatus decreasing piling noise - Google Patents

Abstract

The present invention provides a laminated plate portion in which a plurality of metal plates are stacked; a filling buffer part formed on at least the upper side of the laminated board part, and filled with a buffer material and cured; And, it provides a driving noise reduction device comprising a; is formed in the laminated plate portion, the filled cushioning material is filled and the cross section decreases toward the upper side;

Description

Driving noise reducing device, driving device, and manufacturing method of driving noise reducing device

The present invention relates to a driving noise reducing device, a driving device, and a method of manufacturing the driving noise reducing device.

It should be noted that the content described in this section merely provides background information on the present invention and does not constitute the prior art.

The driving machine is a device that hits the pile placed in the lower part into the ground by dropping a heavy ram down.

Such a driving machine is used by being mounted on heavy equipment, for example, an excavator, a crane, and the like.

As equipment used for land pile driving, hydraulic steering is mainly applied.

In the driving machine, the pile can be driven into the ground or the like by the repeated vertical movement of the ram using hydraulic force.

For onshore piles, steel pipes with a diameter of 400 ~ 609mm are usually used, and in the case of piles for LNG tanks, there are cases where a 1m-diameter pile of steel pipe is applied.

In Korea, it is mandatory to measure the noise of machines subject to noise labeling recommendations.

For example, in the case of monopile for offshore wind power, currently 7 ~ 8 m diameter steel pipe is mainly applied (wind power generator capacity 6 ~ 8 MW class), and it is expected to grow to 12 m in diameter.

In Europe, monopiles with a diameter of 10m or more are called XL monopiles, and monopiles are constructed through driving.

However, the overall diameter of the driving machine does not increase according to the diameter of the monopile, only the driving end guide part increases, and the diameter of the ram is usually about 1.2m.

Various technologies for reducing noise during pile driving have been applied at home and abroad, but a satisfactory level of technology has not yet been developed. .

KR 20-1999-0041380 U

An aspect of the present invention is to provide a driving noise reduction device and a driving device having improved performance for reducing noise generated during pile driving.

As an aspect for achieving the above object, the present invention provides a laminated plate portion in which a plurality of metal plates are stacked; a filling buffer part formed on at least the upper side of the laminated board part, and filled with a buffer material and cured; and a plate fixing part formed in the laminated board part, filled with a filled cushioning material and having a reduced cross section toward the upper side, wherein the filling buffering part is installed to surround at least an area outside the rim portion of the laminated board part To provide a driving noise reduction device.

Preferably, it is formed on the upper side of the charging buffer, the cover plate portion composed of a metal plate; may further include.

Preferably, the laminated plate part may be laminated and fixed with a metal plate having a thickness in the range of 2 to 4 mm through an adhesive.

Preferably, the thickness of the filling buffer may be equal to or greater than the thickness of the laminate.

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Preferably, a fastening hole for fixing to a driving device or a pile member may be formed through at least the laminate plate part and the cover plate part.

Preferably, it is installed between the laminated plate portion and the cover plate portion, the spacer portion for securing the installation space of the charging buffer; may further include.

Preferably, the spacer part may be inserted and fixed into the spacer hole formed in the laminated plate part, and spaced apart from the laminated plate part and the cover plate part by a predetermined interval.

Preferably, the spacer part may be installed so as to be in contact with the upper surface of the laminated plate part and the lower surface of the cover plate part, and may be spaced apart from each other by a predetermined interval between the laminated plate part and the cover plate part.

Preferably, it may further include; a tubular fastening guide part installed to connect the fastening hole formed in the laminate plate part and the cover plate part.

As an aspect for achieving the above object, the present invention is a first reduction device installed on the upper side of the pile member to be driven; a pile cap device installed on the upper side of the first reducing device and accommodating the first reducing device; a second reduction device installed to be accommodated on the upper side of the pile cap device; and a ram device for striking while moving the second reduction device in the vertical direction, wherein at least one of the first reduction device and the second reduction device is configured as the above-described driving noise reduction device It provides a steering device that

Preferably, the driving noise reduction device may be arranged such that the laminated plate portion is on the lower side.

As an aspect for achieving the above object, the present invention is a method of manufacturing the above-described driving noise reduction device, comprising the steps of: arranging a laminate in which a plurality of metal plates are stacked inside a formwork; And, filling the cushioning material into the inside of the form in which the laminated board part is disposed to form the filling buffering part and the plate fixing part; provides a method of manufacturing a driving noise reduction device comprising a.

According to an embodiment of the present invention, there is an effect that can effectively reduce the noise generated when the pile driving.

1 is a plan view showing the configuration of a laminated plate portion and a cover plate portion of the driving noise reduction device according to an embodiment of the present invention.
Figure 2 is a perspective view showing the configuration of the laminated plate portion and the cover plate portion of the driving noise reduction device according to an embodiment of the present invention.
3 is a cross-sectional view of a driving noise reduction device according to an embodiment of the present invention.
4 is a plan view showing the configuration of the laminated plate portion and the cover plate portion of the driving noise reduction device according to another embodiment of the present invention.
5 is a perspective view showing the configuration of a laminated plate portion and a cover plate portion of the driving noise reduction device according to another embodiment of the present invention.
6 is a cross-sectional view of a driving noise reduction device according to another embodiment of the present invention.
7 is a view showing a driving device according to an embodiment of the present invention.
8 and 9 are diagrams comparing the amount of noise reduction when the driving noise reduction device of the present invention is applied and not applied.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiment of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided in order to more completely explain the present invention to those of ordinary skill in the art. The shapes and sizes of elements in the drawings may be exaggerated for clearer description.

Hereinafter, the driving noise reduction device 10 according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 9 .

The driving noise reduction device 10 according to an embodiment of the present invention includes a laminated plate part 100 and a charging buffer part 200, and additionally a cover plate part 300, a plate fixing part 400, and a spacer part 500 ) may be included.

1 to 3 , the driving noise reduction device 10 includes a laminated plate part 100 in which a plurality of metal plates are laminated, and at least the laminated plate part 100 is formed on the upper side, and the cushioning material is filled and cured. It may include a cushioning unit 200 and a plate fixing unit 400 formed on the laminated board unit 100, filled with the filled cushioning material, and having a reduced cross section toward the upper side.

1 to 3 , in the laminated plate unit 100 , a plurality of metal plates may be stacked.

For example, the plurality of metal plates may be made of a steel plate having the same thickness, and may be manufactured by cutting the steel plate.

The metal plate may be composed of a steel plate having a circular cross-section, and a plurality of metal plates may be stacked to form the laminated plate part 100 .

For example, the metal plate may be formed of a steel plate having a circular cross-section having the same diameter, and the laminated plate unit 100 may be configured in a cylindrical shape with a low height while a plurality of metal plates are stacked.

The driving noise reduction device 10 of the present invention includes the configuration of the laminated plate part 100 in which a plurality of metal plates are stacked, so that the impact force applied from the driving device can be stably transmitted to the pile member (P), and the laminated plate part ( 100) has the effect that the damage can be reduced.

When the metal plate of the laminated plate part 100 is subjected to a stress of 200 MPa or more, a vibration-proof steel plate having excellent vibration-proof performance may be configured.

A plurality of metal plates may be stacked in the laminated plate part 100 , and adjacent metal plate parts may be fixed with an adhesive as a medium.

In addition, an adhesive is also applied to the upper side of the uppermost metal plate of the laminated plate part 100 so that it can be more firmly synthesized with the charging and buffering part 200 .

1 and 2 , a plate fixing hole 110 may be formed through the metal plate of the laminated plate part 100 in the height direction.

In each metal plate, two plate fixing holes 110 may be disposed to face each other with respect to the center point of the metal plate.

For example, the laminated plate part 100 may be formed by laminating four metal plates.

In the laminated plate unit 100 , a first metal plate 101 , a second metal plate 102 , a third metal plate 103 , and a fourth metal plate 104 may be sequentially stacked.

At this time, a plate fixing hole 110 is formed in each of the first metal plate 101 , the second metal plate 102 , the third metal plate 103 , and the fourth metal plate 104 , and the plate fixing hole 110 is formed in the height direction. may be arranged to communicate with each other.

In this case, the plate fixing hole 110 may be configured to have a cross section gradually decreasing toward the first metal plate 101 , the second metal plate 102 , the third metal plate 103 , and the fourth metal plate 104 .

Referring to FIGS. 1 and 2 , a spacer hole 130 may be formed through the metal plate of the laminated plate part 100 in the height direction.

Two spacer holes 130 may be disposed to face each other with respect to the center point of the metal plate in each metal plate, and two plate fixing holes 110 may be disposed to face each metal plate based on the center point of the metal plate. .

Referring to FIG. 1 , two spacer holes 130 and two plate fixing holes 110 are formed in the metal plate, and adjacent holes may be disposed in the circumferential direction while forming an angle of 90 degrees to each other.

The spacer hole 130 and the plate fixing hole 110 may be alternately disposed in the circumferential direction, and adjacent holes may be disposed in the circumferential direction while forming an angle of 90 degrees to each other.

That is, the spacer hole 130 may be disposed at the 12 o'clock position and the 6 o'clock position, and the plate fixing hole 110 may be disposed at the 3 o'clock position and the 9 o'clock position.

1 to 3 , the charging buffer 200 is a part that buffers the impact applied to the driving noise reduction device 10 .

The charging buffer 200 is made of a material having an elastic force, such as urethane, and can buffer the impact transmitted from the ram device 30 of the driving device.

The charging/absorbing part 200 may be disposed between the laminated plate part 100 and the cover plate part 300 while being formed at least on the upper side of the laminated plate part 100 .

The filling buffer 200 may be formed by filling and curing a buffer material such as polyurethane or synthetic plastic in a flowable state.

The buffer material may have a liquid state at a high temperature, and may have a solid state while being cured at room temperature.

This is because the cushioning material can be filled while easily flowing into the filling buffering part 200 and the plate fixing part 400, and it is necessary to harden while solidifying after the filling is completed.

Of course, the charging buffer 200 may be additionally formed in a portion other than the upper side of the laminate 100 . For example, the charging buffer 200 may be formed on the upper side of the laminated board part 100 and on the edge of the side of the laminated board part 100 .

The filling buffer 200 may form a buffer layer with a predetermined thickness between the laminated plate part 100 and the cover plate part 300 while the cushioning material is filled and cured.

For example, the charging buffer 200 may form a urethane layer of a predetermined thickness between the laminated plate 100 and the cover 300 while the urethane is filled and cured.

1 to 3 , the plate fixing part 400 serves to prevent a plurality of stacked metal plates from being separated in the lateral direction.

The plate fixing part 400 is formed in the laminated plate part 100, and by configuring the cross section to decrease toward the upper side, it is possible to prevent the adjacent metal plates from being separated from each other in the transverse direction by the impact force generated during driving by a driving device, etc. have.

The plate fixing unit 400 is formed to communicate with the charging space, and a portion of the cushioning material filled to form the charging buffer 200 may be filled.

For example, the plate fixing part 400 may be formed across a plurality of metal plates, and the plate fixing holes 110 formed in the plurality of metal plates may be disposed to communicate with each other.

For example, urethane filled to form the filling buffer 200 may be filled and cured.

2 and 3 , plate fixing holes 110 are respectively formed in the metal plates of the laminated plate part 100, and the plate fixing holes 110 of the plurality of stacked metal plates are arranged to communicate with each other and are directed upward. The cross-section may gradually decrease.

The plate fixing part 400 may be filled in a portion of the plate fixing hole 110 formed in the plurality of metal plates, and the cross-section of the plate fixing part 400 may decrease toward the upper side.

For example, the plate fixing part 400 may have a cross-section of a step shape in which the cross-section decreases toward the upper side.

1 to 3 , the driving noise reduction device 10 may further include a cover plate part 300 formed of a metal plate and formed on the upper side of the charging buffer part 200 .

The cover plate part 300 is installed to cover the upper side of the charging buffer unit 200 , and may protect the charging buffer unit 200 having relatively weak rigidity.

The cover plate part 300 may be disposed to cover the upper side of the charging buffer part 200 .

The cover plate part 300 may be disposed to be spaced apart from the laminate plate part 100 by a predetermined interval in the height direction.

A charging hole 310 is formed in the cover plate part 300 , and a cushioning material may be filled through the charging hole 310 .

For example, the cover plate part 300 may be spaced apart from the laminate plate part 100 by a predetermined interval in the height direction by a spacer part 500 to be described later.

As another example, although not shown, the edge of the cover plate 300 is mounted on the stepped portion formed on the upper edge of the mold F for forming the charging buffer 200 in the height direction with the laminated board 100 . may be spaced apart from each other at predetermined intervals.

The laminated plate unit 100 may be laminated and fixed to a metal plate having a thickness in the range of 2 to 4 mm through an adhesive.

For example, the laminated plate part 100 may be formed to have a thickness of 12 mm while stacking four steel plates having a thickness of 3 mm, and the metal plate of the laminated plate part 100 may have a diameter of 628 mm.

However, it goes without saying that the thickness and diameter of the metal plate are not limited to the above numerical values.

The thickness of the charging buffer 200 may be equal to or greater than the thickness of the laminate 100 .

Preferably, the thickness of the charging buffer 200 may be in the range of 1 to 2 times the thickness of the laminate 100 .

More preferably, the thickness of the charging buffer 200 may be in the range of 1 to 1.5 times the thickness of the laminate 100 .

As an example, the laminated plate part 100 is formed of 12 mm as four steel plates of 3 mm are stacked, and the charging buffer 200 has a thickness of 12 mm between the laminated plate part 100 and the cover plate part 300. It can be formed to have.

At this time, the cover plate part 300 is composed of one steel plate and may be formed to a thickness of 3 mm, and the diameter of the metal plate of the laminate plate part 100 may be composed of 628 mm.

Referring to FIG. 3 , the charging buffer unit 200 may be installed to surround at least an area outside the edge of the laminated plate unit 100 .

Referring to FIG. 3 , the diameter of the formwork (F) is formed to be larger than the diameter of the laminated board part (100), and the laminated board part (100) may be spaced apart from the inner surface of the formwork (F) by a predetermined interval.

The charging buffer 200 may be formed to surround the area outside the edge of the laminated board 100 .

Accordingly, the diameter of the charging and buffering part 200 may be formed to be larger than the diameter of the laminated plate part 100 .

As an example, the laminated plate part 100 is formed of 12 mm as four steel plates having a thickness of 3 mm are stacked, and the diameter of the metal plate of the laminated plate part 100 may be 628 mm, and the filling and buffering part 200 is installed. The inner diameter of the formwork (F) for is configured as 630mm, between the edge portion of the laminate 100 and the inner diameter of the formwork (F) may have a spacing of about 1mm, respectively.

Referring to FIGS. 1 and 2 , at least the laminated plate part 100 and the cover plate part 300 may have a fastening hole H for fixing to the driving device or the pile member P may be formed therethrough.

By installing a fastening member such as a screw in the fastening hole (H), the driving noise reduction device 10 can be fixed to the pile cap device 20 of the driving device or the head of the pile member P.

It may be more preferable that the fastening hole H passing through the laminated plate part 100 , the charging buffer part 200 , and the cover plate part 300 is formed.

However, when it is difficult to form the fastening hole (H) in advance in the space where the cushioning material is filled, the charging buffer unit 200 is the laminated plate part 100 when fastening the fastening member for fixing to the driving device or the pile member (P). ) and the fastening hole (H) of the cover plate part 300, it can be fastened while forming the fastening hole (H) in the charging buffer unit 200 as well.

For example, when fastening with a fastening member such as a screw, the fastening hole H can be easily formed in the filling buffer 200 made of a cushioning material such as urethane.

1 to 3 , the driving noise reduction device 10 is installed between the laminated plate part 100 and the cover plate part 300 to secure the installation space (S) of the charging and buffering part 200 . It may further include a spacer 500 to the.

The spacer unit 500 serves to secure the installation space (S) of the charging buffer unit 200 by spaced apart between the laminated plate unit 100 and the cover plate unit 300 .

The spacer part 500 may be installed between the laminate plate part 100 and the cover plate part 300 , and at least a part of it may be embedded in the filling buffer part 200 .

The spacer part 500 may be embedded in the filling buffer part 200 in a section between the laminate plate part 100 and the cover plate part 300 .

1 to 3 , the spacer part 500 is inserted and fixed into the spacer hole 130 formed in the laminated plate part 100 , and a predetermined space is provided between the laminated plate part 100 and the cover plate part 300 . can be spaced apart.

The spacer part 500 may be installed to support the cover plate part 300 while being inserted and fixed in the spacer hole 130 formed in the laminated plate part 100 .

The spacer part 500 may have the cover plate part 300 installed on the upper side in a state in which the spacer part 500 is inserted and fixed in the spacer hole 130 formed in the laminate plate part 100 .

The spacer part 500 may be composed of a plurality of spacer rod members that support the cover plate part 300 in a state where it is inserted and fixed in the spacer hole 130 formed in the laminated plate part 100 .

As an example, the spacer bar member is configured in a cylindrical shape, and can support the upper cover plate part 300 in a state where the lower part is inserted into the spacer hole 130 .

4 to 6, the spacer part 500 is installed to be in contact with the upper surface of the laminated plate part 100 and the lower surface of the cover plate part 300, the laminated plate part 100 and the cover plate part ( 300) may be spaced apart by a predetermined interval.

It may be composed of a plurality of spacer bar members installed to support between the laminated plate part 100 and the cover plate part 300 .

A plurality of spacer rod members are installed so that the upper end is in contact with the upper surface of the laminated plate part 100, and the lower end is in contact with the lower surface of the cover plate part 300, and a predetermined interval between the laminated plate part 100 and the cover plate part 300 is provided. can be spaced apart.

A plurality of spacer bar members may be disposed to be spaced apart from each other at a predetermined distance on the edge of the laminated plate part 100 and the cover plate part 300 on a plane.

The spacer member may be fixed to the upper surface of the laminated plate part 100 and the lower surface of the cover plate part 300 via an adhesive.

For example, four spacer bar members are installed on the edge of the laminated plate part 100 and the cover plate part 300, and may be radially disposed while forming an angle of 90 degrees.

As another example, three spacer bar members are installed on the edge of the laminated plate part 100 and the cover plate part 300 , and may be radially disposed while forming an angle of 120 degrees.

2 and 5, the driving noise reduction device 10 is a tubular fastening guide part ( 600) may be further included.

The fastening guide part 600 is installed to connect the fastening hole H formed in the laminated plate part 100 and the cover plate part 300 , and the laminated plate part 100 , the charging buffer part 200 , and the cover plate part 300 . ) By being composed of a tubular member installed over, it is possible to secure in advance a space through which the fastening member for fixing to the driving device or the pile member (P) before the filling of the charging buffer 200 can pass.

Next, with reference to the drawings will be described in detail with respect to the steering device.

1 to 9 , the driving device according to an embodiment of the present invention includes a first reduction device 11 , a pile cap device 20 , a second reduction device 12 , and a ram device 30 . may include

Referring to FIG. 7 , the driving device includes a first reduction device 11 installed on an upper side of the driven pile member P, and a first reduction device 11 installed on the upper side of the first reduction device 11, and the first reduction device ( 11) The pile cap device 20 accommodated therein, the second reduction device 12 installed to be accommodated on the upper side of the pile cap device 20, and the second reduction device 12 while moving in the vertical direction It includes a hitting ram device 30 , and at least one of the first reducing device 11 and the second reducing device 12 may be configured as the driving noise reducing device 10 .

Referring to FIG. 7 , each of the first reduction device 11 and the second reduction device 12 may be configured with the driving noise reduction device 10 of the present invention.

Of course, only one side of the first reducing device 11 and the second reducing device 12 may be configured with the driving noise reducing device 10 of the present invention.

For example, only the first reduction device 11 of the first reduction device 11 and the second reduction device 12 may be configured as the driving noise reduction device 10 of the present invention.

As another example, only the first reduction device 11 and the second reduction device 12 of the second reduction device 12 may be configured as the driving noise reduction device 10 of the present invention.

The driving device may be arranged such that the driving noise reduction device 10 is located at the lower side of the laminated plate part 100 .

When the first reduction device 11 is configured with the driving noise reduction device 10, the laminated plate part 100 of the driving noise reducing device 10 is disposed on the lower side while the laminated plate part 100 is the pile member (P) of the It may be disposed in contact with the upper portion.

When the second reducing device 12 is configured as the driving noise reducing device 10, the laminated plate part 100 of the driving noise reducing device 10 is disposed on the lower side while the laminated plate part 100 is a pile cap device 20 It may be disposed in contact with the upper portion of the.

That is, the laminated board part 100 may be disposed to be in contact with the bottom surface of the receiving space of the upper portion of the pile cap device 20 .

In addition, it goes without saying that various embodiments of the driving noise reduction device 10 having the various embodiments described above may be applied to the driving device of the present invention.

Therefore, the configuration of the laminated plate part 100, the charging buffer 200, etc. of the driving noise reducing device 10 utilized in the driving device is the same as the configuration of the driving noise reducing device 10 as already described. Descriptions are omitted to avoid duplication.

With reference to FIGS. 8 and 9, the experimental results of the first experiment and the second experiment performed to verify the noise reduction performance using the steering device according to an embodiment of the present invention will be described as follows.

The driving device was tested in a state in which only the first reducing device 11 and the first reducing device 11 among the second reducing device 12 were configured with the driving noise reducing device 10 of the present invention.

Referring to (a) of Figure 8, in the first experiment, noise was measured at four harmful places at the same distance from the point at which the driving device drives the pile member (P), and the noise was measured three times at the same point. did.

Noise was measured at four locations that were 16m away from the point where the pile member (P) was driven by the driving device.

Noise was measured at four locations that were 16m away from the point where the pile member (P) was driven by the driving device.

Referring to (b) of Figure 8, the arithmetic mean in the case of not applying the driving noise reducing device 10 of the present invention was measured to be 127.9 (dB), when the driving noise reducing device 10 of the present invention is applied The arithmetic mean of was measured to be 125.4 (dB).

As such, as a result of the experiment in Experiment 1, when the driving noise reduction device 10 of the present invention is applied, compared to the case where the driving noise reduction device 10 of the present invention is not applied, the arithmetic mean of noise is 2.5 (dB) or was found to decrease.

Referring to Figure 9 (a), in the second experiment, noise was measured at four locations with different distances from the point at which the driving device drives the pile member (P), and the noise was measured three times at the same point. measured.

Noise was measured at 4 locations (separation distances of 1m, 8m, 16m, 32m) with different distances from the point where the pile member (P) was driven by the driving device.

Referring to FIG. 9 (b), in the second experiment, when the separation distance is 1 m, the arithmetic average of the case where the driving noise reduction device 10 of the present invention is not applied was measured to be 109 (dB), and the When the driving noise reduction device 10 was applied, the arithmetic mean was measured to be 106.8 (dB).

As such, it was found that the arithmetic mean of noise was reduced by 2.2 (dB) when the driving noise reducing device 10 of the present invention was applied compared to the case where the driving noise reducing device 10 of the present invention was not applied.

Referring to Figure 9 (b), in the second experiment, when the separation distance is 8 m, the arithmetic mean of the case where the driving noise reduction device 10 of the present invention is not applied was measured to be 99.6 (dB), and the When the driving noise reduction device 10 was applied, the arithmetic mean was measured to be 96.9 (dB).

As such, it was found that the arithmetic mean of noise was reduced by 2.7 (dB) when the driving noise reduction device 10 of the present invention was applied compared to the case where the driving noise reduction device 10 of the present invention was not applied.

Referring to FIG. 9 (b), in the second experiment, when the separation distance is 16 m, the arithmetic mean when the driving noise reduction device 10 of the present invention is not applied was measured to be 94.3 (dB), and the When the driving noise reduction device 10 was applied, the arithmetic mean was measured to be 92.2 (dB).

As such, it was found that the arithmetic mean of noise was reduced by 2.2 (dB) when the driving noise reducing device 10 of the present invention was applied compared to the case where the driving noise reducing device 10 of the present invention was not applied.

Referring to FIG. 9 (b), in the second experiment, when the separation distance is 32 m, the arithmetic mean when the driving noise reduction device 10 of the present invention is not applied was measured to be 88.2 (dB), and the The arithmetic mean when the driving noise reduction device 10 was applied was measured to be 87.2 (dB).

As such, it was found that the arithmetic mean of noise decreased by 1.0 (dB) in the case of applying the driving noise reduction device 10 of the present invention compared to the case in which the driving noise reducing device 10 of the present invention was not applied.

That is, as a result of the experiment in Experiment 2, when the driving noise reduction device 10 of the present invention is applied, compared to the case where the driving noise reduction device 10 of the present invention is not applied, the arithmetic mean of the noise is 1.0 to 2.7 (dB) was found to decrease.

Next, with reference to the drawings will be described in detail with respect to the manufacturing method of the driving noise reduction device.

1 to 3, the manufacturing method of the driving noise reduction device includes the steps of arranging a laminated plate part 100 on which a plurality of metal plates are laminated inside a form (F), and the laminated plate part 100 is disposed It may include forming the filling buffer 200 and the plate fixing part 400 by filling the cushioning material into the inside of the form (F).

With reference to the drawings, the manufacturing method of the driving noise reduction device will be briefly described as follows.

First, the laminated plate part 100 in which a plurality of metal plates are stacked may be disposed inside the mold (F).

In this case, the plurality of metal plates may be fixed through an adhesive or the like.

Next, it is possible to fill and harden the part corresponding to the filling buffer 200 and the plate fixing part 400 at the same time by filling the cushioning material inside the mold F in which the laminated board part 100 is disposed.

Next, after the charging buffer unit 200 and the plate fixing unit 400 are hardened, the mold (F) is removed to manufacture the driving noise reduction device 10 of the present invention.

First, referring to FIG. 3 (a), when the driving noise reduction device 10 further includes the cover plate part 300, the cover plate part in a state in which the laminated plate part 100 is disposed inside the mold (F). 300 may be disposed to be spaced apart from the laminated plate part 100 .

Next, referring to FIG. 3B , the filling buffer 200 and the plate fixing part 400 can be filled and cured at the same time by filling the cushioning material inside the form (F).

In this case, the laminated plate part 100 and the cover plate part 300 may be connected via the charging and buffering part 200 .

Of course, the cushioning material may be filled in a state in which an adhesive material or the like has been previously applied to the upper surface of the laminated plate part 100 and the lower surface of the cover plate part 300 .

In the method of manufacturing the driving noise reduction device, the filling buffer 200 and the plate fixing part 400 may be integrally formed by filling the cushioning material in a state in which the laminated board part 100 is disposed inside the form (F).

As an example, when the driving noise reduction device 10 further includes the cover plate part 300 and the spacer part 500 , the spacer part 500 is used to provide a space between the cover plate part 300 and the laminated plate part 100 . It is possible to form the charging buffer 200 and the plate fixing part 400 integrally by filling the cushioning material in a state in which the installation space S of the charging buffer 200 is secured by being spaced apart.

As another example, when the driving noise reduction device 10 further includes the cover plate part 300, although not shown, in the stepped portion formed on the upper edge of the form (F) for the formation of the charging buffer part 200 While the edge of the cover plate 300 is mounted, the space between the cover plate 300 and the laminated plate 100 is spaced apart to secure the installation space S of the charging buffer 200, and the cushioning material is charged to charge the buffer. The part 200 and the plate fixing part 400 may be integrally formed.

In addition, it goes without saying that various embodiments of the driving noise reduction device 10 having the various embodiments described above may be applied to the method of manufacturing the driving noise reduction device of the present invention.

Therefore, the configuration of the laminated plate part 100, the charging buffer 200, etc. of the driving noise reduction device 10 used in the manufacturing method of the driving noise reduction device is the configuration of the driving noise reduction device 10 and the configuration of the driving noise reduction device 10 as already described. A detailed description thereof will be omitted to avoid duplication.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and variations are possible within the scope without departing from the technical spirit of the present invention described in the claims. It will be apparent to those of ordinary skill in the art.

10: driving noise reduction device 11: first reduction device
12: first reduction device 20: pile cap device
30: ram device 100: laminated plate part
101: first metal plate 102: second metal plate
103: third metal plate 104: fourth metal plate
110: plate fixing hole 130: spacer hole
200: charging buffer unit 300: cover plate unit
310: charging hole 400: plate fixing part
500: spacer part 600: fastening guide part
H: Fastening hole F: Formwork
P: Pile member S: Installation space

Claims (13)

a laminated plate unit in which a plurality of metal plates are stacked;
a filling buffer part formed on at least the upper side of the laminated board part, and filled with a buffer material and cured; and,
It includes; a plate fixing part formed in the laminated board part, filled with a filled cushioning material and having a cross section that decreases toward the upper side;
The charging buffer unit,
Driving noise reduction device, characterized in that it is installed so as to surround an area outside the edge portion of the laminate at least.
According to claim 1,
The driving noise reduction device further comprising; a cover plate portion formed on the upper side of the charging buffer and composed of a metal plate.
The method of claim 1, wherein the laminated plate portion,
A device for reducing noise when driving, characterized in that the metal plates having a thickness in the range of 2 to 4 mm are laminated and fixed through an adhesive.
According to claim 1,
The thickness of the charging buffer is equal to or greater than the thickness of the laminate.
delete 3. The method of claim 2,
A driving noise reduction device in which a fastening hole for fixing to a driving device or a pile member is formed through at least the laminated plate part and the cover plate part.
3. The method of claim 2,
The driving noise reduction device further comprising; a spacer part installed between the laminate plate part and the cover plate part to secure an installation space of the charging buffer part.
According to claim 7, The spacer part,
It is inserted and fixed in the spacer hole formed in the laminated plate portion, driving noise reduction device, characterized in that spaced apart between the laminated plate portion and the cover plate portion at a predetermined interval.
According to claim 7, The spacer part,
A driving noise reduction device, characterized in that the upper surface of the laminated plate portion and the lower surface of the cover plate portion are installed to be in contact with the laminated plate portion and the cover plate portion are spaced apart by a predetermined interval.
a laminated plate unit in which a plurality of metal plates are stacked;
a filling buffer part formed on at least the upper side of the laminated board part, and filled with a buffer material and cured;
a cover plate formed on the upper side of the charging buffer and made of a metal plate; and,
a plate fixing part formed in the laminated plate part, filled with a filled cushioning material, and having a reduced cross section toward the upper side;
including,
A fastening hole for fixing to a driving device or a pile member is formed through at least the laminated plate part and the cover plate part,
The driving noise reduction device further comprising a; the laminate plate portion, and a tubular fastening guide part installed to connect the fastening hole formed in the cover plate part.
A first reduction device installed on the upper side of the driven pile member;
a pile cap device installed on the upper side of the first reducing device and accommodating the first reducing device;
a second reduction device installed to be accommodated on the upper side of the pile cap device; and,
and a ram device that strikes while moving the second reduction device in the vertical direction.
At least one of the first reducing device and the second reducing device is characterized in that it is composed of the driving noise reduction device according to any one of claims 1 to 4 and claim 6 to 10. steering device.
12. The method of claim 11,
The driving noise reduction device is a driving device, characterized in that the laminate is arranged to come to the lower side.
It is a method of manufacturing the driving noise reduction device according to any one of claims 1 to 4 and claim 6 to 10,
arranging a laminate in which a plurality of metal plates are stacked inside the formwork; and,
The manufacturing method of a driving noise reduction device comprising a; filling the cushioning material into the inside of the form in which the laminated board part is disposed to form the filling buffering part and the plate fixing part.

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