WO2018169106A1

WO2018169106A1 - Construction machine and foreign material removing module used for same

Info

Publication number: WO2018169106A1
Application number: PCT/KR2017/002849
Authority: WO
Inventors: 김성환; 백민
Original assignee: 볼보 컨스트럭션 이큅먼트 에이비; 김성환; 백민
Priority date: 2017-03-16
Filing date: 2017-03-16
Publication date: 2018-09-20

Abstract

The present invention provides a construction machine and a foreign material removing module used for the same, the construction machine comprising: a lower traveling body provided to be movable; an upper working body having a working attachment, and connected so as to be swingable with respect to the lower traveling body; and a removing module having a sweeping unit provided at the upper working body, so as to remove foreign materials accumulated on the lower traveling body, wherein the sweeping unit rotates along a circular rotational track around a swing axis of the upper working body, and starts to come in contact with the foreign materials at a first position during a forward rotation and starts to come in contact with the foreign materials at a second position during a reverse rotation.

Description

Construction machinery and debris removal modules used in it

The present invention relates to a construction machine and a debris removal module for use therein.

Construction machinery, for example, excavators are mainly used in construction and civil engineering sites where a lot of soil, dust, etc. are generated. More specifically, the excavator is used to excavate the earth and sand, or to load the excavated soil, rock at construction and civil construction site. In this process, the earth and sand are piled up by falling into the excavator.

Foreign matter such as soil, mud, sand, and stones falling from the rock may stick to the excavator, which may impede the operation of the excavator's swing system. In addition, in winter, the foreign matter may freeze and attach to the swing system, causing operational problems. In the long run, the foreign matter may cause the swing system to rust and become damaged.

To alleviate this problem, mud plates were also installed on the upper workpieces of the excavator, as presented in Chinese Utility Model Publication No. 2011-20194317 (June 10, 2011). This mud plate is for removing foreign matter such as mud on the lower traveling body while rotating according to the swing of the upper work body.

However, such a mud plate is formed of only one plate, and starts to contact foreign matter only at one position in both swings of the upper workpiece. Thus, if the angle of the mud plate is set so as to push the foreign matter at an effective angle in the swing in one direction, the mud plate is unsuitable for pushing the foreign matter in the swing in the other direction.

As a result, when swinging the upper work piece in both directions, it becomes difficult to design the foreign material more effectively in accordance with each swing direction.

It is an object of the present invention to provide a construction machine and a foreign material removal module used therein, so that any foreign matter accumulated in the construction machine can be pushed out at an angle most suitable for removing the foreign matter in each direction.

The foreign material removal module for construction machinery according to an aspect of the present invention for realizing the above object is provided with an attachment portion attached to an upper work body of the construction machine, a first mounting portion and a second mounting portion extending from the attachment portion. Mounting bracket; And a first brush mounted on the first mounting unit and a second brush mounted on the second mounting unit to sweep off foreign matter accumulated in the lower traveling body when the upper work body swings with respect to the lower traveling body of the construction machine. Sweeping unit having, the first mounting portion and the second mounting portion is disposed inclined with respect to each other; may include.

Here, the mounting bracket further comprises a pillar portion extending in the direction away from the attachment portion, wherein the first mounting portion and the second mounting portion is integrally connected to each other by the pillar portion is the first mounting portion and the second mounting portion It may function as a barrier to prevent the inflow of the foreign matter therebetween.

Here, the first mounting portion and the second mounting portion, respectively, the first area that is wider the farther away from the attachment portion; And a second region extending in the same width in the first region and on which the first brush or the second brush is seated.

Here, the sweeping unit may include: an adhesion plate for bringing the first brush into close contact with the mounting bracket; And a coupling bolt penetrating the adhesion plate and the first brush and coupled to the mounting bracket.

In this case, the first brush includes an extension part protruding to the side of the first mounting part, and the adhesion plate protrudes to the side of the first plate part and the second brush which protrude to the side of the first brush. It includes an extended second plate portion, the extension portion may be fitted and coupled between the first plate portion and the second plate portion.

The mounting bracket may further include a drop induction part disposed on an upper side of the first brush and extending in a spiral form from the first mounting part to drop the foreign material to guide the front of the first brush.

Construction machine according to another aspect of the invention, the lower traveling body is configured to be movable; An upper workpiece having a work attachment and swingably connected to the lower traveling body; And a removal module having a sweeping unit installed on the upper work body to remove foreign matters accumulated on the lower traveling body, wherein the sweeping unit includes a circular rotation trajectory around a swing axis of the upper work body. And may be configured to start contacting the foreign matter at a first position during forward rotation and to start contacting the foreign matter at a second position during reverse rotation.

Here, the sweeping unit comprises: a first brush arranged to start contact with the foreign matter at the first position; And a second brush arranged along a crossing direction with respect to the first brush and arranged to start contact with the foreign matter at the second position.

Here, the lower traveling body includes a frame on which the upper work body is swingably mounted, and a crawler connected to the frame to protrude upward from the side of the frame, wherein at least one of the first brush and the second brush is provided. One may include an extension that is elastically folded in contact with the side of the crawler during the forward rotation and the reverse rotation.

Construction machine according to another aspect of the invention, the lower traveling body; An upper work body disposed above the lower traveling body; And a sweeping unit moving along the movement trajectory, the removal module being configured to remove foreign matter between the lower traveling body and the upper work body, wherein the sweeping unit is configured to move in the first position when the first direction moves. It may be configured to start contact with the foreign matter, and to start contact with the foreign matter at the second position when moving in the second direction.

Here, the sweeping unit is installed on the upper workpiece, the upper workpiece is swingably connected to the lower traveling body so that the movement trajectory is a rotational trajectory and the first direction movement is a forward rotation and the first The two-way movement may further include a swing module to cause reverse rotation.

Here, the first brush and the second brush may be arranged such that the distance between each other increases toward the center of the rotation trajectory.

Here, the first brush and the second brush, at least a portion may be installed on the upper work body to be out of the upper surface of the lower traveling body in one position during the forward rotation and the reverse rotation.

Here, the removal module further comprises a mounting bracket which is installed on the upper workpiece, the mounting bracket, the first mounting portion for mounting the first brush is located in the first position, and the second brush May be mounted to include a second mounting part positioned at the second position.

Here, the first mounting portion and the second mounting portion may be integrally connected to each other, and may function as a blocking wall to block the foreign matter from flowing toward the center of the rotational trajectory.

Here, the lower traveling body includes a frame on which the swing module is installed, and a side unit installed on the frame to protrude upward from the side of the frame to form a boundary wall, and the first brush and the second brush. At least one may have a length in contact with the boundary wall during the forward rotation and the reverse rotation.

Here, the sweeping unit may include a brush, and the removal module may further include a driving unit configured to move the brush between the first position and the second position.

Here, the drive unit may be configured to rotate the brush so that the end of the brush draws an arc.

Here, the drive unit is installed in the upper work body, and includes a drive motor configured to rotate forward / reverse for the first direction movement and the second direction movement, the removal module, It may further include a mounting bracket connected to the output shaft and to which the brush is mounted.

According to the construction machine and the foreign matter removal module used in the present invention configured as described above, the first brush and the second brush which is a component for removing the foreign matter are respectively provided, such as swing in both directions of the upper workpiece In this case, foreign matter can be pushed out at the most suitable angle in each direction.

In addition, as the first brush and the second brush are positioned off the upper surface of the lower traveling body during rotation, the foreign matter can be pushed to the ground beyond just moving away from the swing module.

Furthermore, when at least one of the first brush and the second brush extends to the corner of the upper surface of the lower traveling body, the removal of foreign matter to the corner of the lower traveling body can be performed regardless of the shape of the upper surface of the lower traveling body. It can be done.

In addition, when one brush is configured to start contact with the foreign matter at two positions by rotation, the foreign matter may be sequentially removed as the angle of the brush is further adjusted.

1 is a perspective view showing a construction machine 100 according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a configuration of the upper work body 130 side separated from the lower traveling body 110 of FIG. 1.

3 is a partially exploded perspective view of the foreign material removal module 150 of FIG. 2.

FIG. 4 is a conceptual view illustrating a sweeping operation of the lower traveling body 110 of the foreign material removing module 150 of FIG. 2.

5 is a perspective view showing a foreign material removal module 250 according to another embodiment of the present invention.

6 is a perspective view showing a foreign material removal module 350 according to another embodiment of the present invention.

FIG. 7 is a conceptual view illustrating a sweeping operation of the lower traveling body 110 of the foreign material removing module 350 of FIG. 6.

FIG. 8 is a conceptual view illustrating a sweeping operation of the lower traveling body 110 of the foreign substance removing module 350 ′ according to a modification of the foreign substance removing module 350 of FIG. 6.

9 is a perspective view showing a foreign material removal module 450 according to another embodiment of the present invention.

FIG. 10 is a conceptual view illustrating a sweeping operation of the lower traveling body 110 of the foreign material removing module 450 of FIG. 9.

Hereinafter, a construction machine according to a preferred embodiment of the present invention and a foreign material removal module used therein will be described in detail with reference to the accompanying drawings. In the present specification, the same reference numerals are used to designate similar components in different embodiments, and the description thereof is replaced with the first description.

Referring to the drawings, the description of the construction machine 100 according to an embodiment of the present invention takes an excavator as an example. Hereinafter, the reference numeral 100 is given to the excavator in the same manner as the construction machine 100.

The excavator 100 may include a lower traveling body 110, an upper working body 130, a foreign material removal module 150, and a swing module 170.

The lower traveling body 110 is a part located below the excavator 100 and is responsible for the movement of the excavator 100. The lower traveling body 110 specifically includes a frame 111 and a crawler 116. The frame 111 has a generally rectangular top surface.

The swing module 170 is installed on the upper surface of the frame 111. The crawler 116 is coupled to both sides of the frame 111 and protrudes above the frame 111. The crawler 116 is driven to rotate by the power of an engine or an electric motor, so that the excavator 100 can move. Unlike the above crawler excavators, in the wheeled excavator, a wheel and a protruding cover to cover the wheel may be employed in place of the crawler 116. The crawler 116 and the wheel (and the cover) may be collectively referred to as a side unit.

The upper work body 130 is a part located in the upper part of the excavator 100 and is a part directly responsible for the work by the excavator 100. The upper work body 130 may have a work attachment 131 for performing various construction work. As the work attachment 131, a shovel is illustrated in the figure, but a ripper or the like may be used without being limited thereto. In addition, the upper work body 130 may have a cap cab 136 for receiving an operator for steering the attachment 131 or the like.

The debris removal module 150 is configured to remove debris between the lower traveling body 110 and the upper work body 130. Specifically, the foreign material removal module 150 may be installed on the lower surface of the upper work body 130 to be in contact with the upper surface of the lower traveling body (110). This debris removal module 150 may be referred to simply as a removal module.

The swing module 170 connects them between the lower traveling body 110 and the upper work body 130. Further, the swing module 170 includes a component such as a swing bearing that allows the upper workpiece 130 to swing relative to the lower traveling body 110.

According to this configuration, the upper work body 130 may be swing by the swing module 170 in the clockwise or counterclockwise direction with respect to the lower traveling body (110).

By this swing, the foreign material removal module 150 also rotates along a rotational trajectory similar to the swing trajectory of the upper work body 130. The rotation trajectory is circular, and the rotation in the rotation trajectory may be divided into bidirectional rotation (forward rotation and reverse rotation).

By the forward rotation or the reverse rotation, the foreign material removal module 150 may push the foreign matter accumulated on the upper surface of the lower traveling body 110 in a direction away from the swing module 170. Thereby, the failure caused by the foreign matter attached to the parts such as the swing bearing of the swing module 170 can be prevented in advance.

Unlike the above, the foreign material removal module 150 may be rotated independently of the swing of the upper workpiece (130). For example, a circular slot may be installed at the bottom of the upper workpiece 130, and a link having an end rotated along the slot may be provided at the center of the slot. This link can be rotationally driven by a motor located in the center of the slot. At this time, if the debris removal module is connected to the link, the debris removal module can rotate along the slot.

In this case, since the foreign material removal module is not linked to the swing of the upper work body 130, it may be operated independently by a separate operation of the operator if necessary. For example, when the excavator 100 excavates the soil in the slope and the soil continues to flow down, the soil removal module may be insufficient only by operating the foreign matter removal module during the swing of the upper workpiece 130. Under these conditions, the debris removal module operating independently as described above can effectively remove the soil in a timely manner.

The independently driven debris removal module may be moved along another trajectory, for example, a linear trajectory, without rotating along the rotation trajectory. Thereby, the foreign material removal module may be moved along one side of the frame 111 of the lower traveling body 110. Thereby, the foreign material removal module can be defined as being moved along the movement trajectory. At this time, the foreign material removal module is moved in a first direction or a second direction along the movement trajectory. Here, the first direction movement may be a movement in a direction opposite to the second direction movement. In the following description, the movement trajectory may be used as a higher concept including the rotation trajectory. In this case, the first direction movement may include the forward rotation, and the second direction movement may include the reverse rotation.

Unlike the above description, the foreign material removal module may be installed on the upper surface of the lower traveling body (110). In this case, the foreign substance removal module may remove foreign substances accumulated on the lower surface side of the upper workpiece 130 while rotating relative to the upper workpiece 130 by the swing of the upper workpiece 130.

Furthermore, if the foreign substance removal module 150 is driven independently by the motor, the foreign substance removal module 150 is moved from the upper surface of the lower traveling body 110 to remove the foreign matter accumulated on the upper surface of the lower traveling body 110. You may.

The foreign material removal module 150 will be described in detail with reference to FIGS. 2 and 3.

FIG. 2 is a perspective view showing the configuration of the upper work body 130 separated from the lower traveling body 110 of FIG. 1, and FIG. 3 is a partially exploded perspective view of the foreign material removing module 150 of FIG. 2.

Referring to the drawings, the foreign material removal module 150 may include a mounting bracket 151 and a sweeping unit 156.

Mounting bracket 151 is coupled to the upper workpiece 130 and is a component constituting the body of the debris removal module 150. The mounting bracket 151 may be made of, for example, a metal alloy as a tough material.

Specifically, the mounting bracket 151 may include an attachment part 152, a pillar part 153, a first mounting part 154, and a second mounting part 155.

Attachment 152 is a generally rectangular plate, which is attached to the bottom of upper workpiece 130. To this end, the attachment portion 152 may be screwed onto the upper workpiece 130.

The pillar portion 153 is a portion extending in the separation direction from the attachment portion 152. Specifically, in the present embodiment, the pillar portion 153 has an arc-shaped cross section and is a portion extending vertically downward from the attachment portion 152. On the contrary, when the first mounting portion 154 and the second mounting portion 155 directly meet, a portion (corner portion) where they meet may be referred to as a pillar portion 153.

The first mounting portion 154 and the second mounting portion 155 are connected to both sides of the pillar portion 153, and may each be a flat plate. The second mounting portion 155 may be disposed in an inclined direction with respect to the first mounting portion 154. In this embodiment, the second mounting portion 155 is disposed substantially perpendicular to the first mounting portion 154.

Since the first mounting portion 154 and the second mounting portion 155 are integrally connected to each other, the foreign matter may be prevented from flowing toward the center of the rotational trajectory. Accordingly, the first mounting portion 154 and the second mounting portion 155 serve as a blocking wall as a whole. The barrier wall structure is fundamentally different from the structure in which the first mounting portion 154 and the second mounting portion 155 are spaced apart from each other so that foreign matter is caught between them.

The first mounting portion 154 may have a shape such as an 'L' shape. As a result, the first mounting portion 154 may be divided into a first region 154a and a second region 154b. The first region 154a may be positioned above the second region 154b and may be wider in width toward the second region 154b. In contrast, the second region 154b may have a relatively small or no change in width in a direction away from the first region 154a. Such a configuration makes it possible to keep the height of the pillar portion 153 higher while reducing the overall weight of the first mounting portion 154. Here, the pillar portion 153 side is a portion where the foreign matter is accumulated higher when the foreign material removal module 150 is rotated than the free end side of the first mounting portion 154.

The second mounting portion 155 may have a symmetrical shape with respect to the first mounting portion 154 based on the pillar portion 153. Therefore, the detailed description of the second mounting unit 155 is replaced with the description of the first mounting unit 154.

The sweeping unit 156 is installed in the mounting bracket 151 and is configured to directly sweep the upper surface in contact with the upper surface of the lower traveling body 110. Specifically, the sweeping unit 156 may include a brush 157, an adhesion plate 158, and a coupling bolt 159.

The brush 157 is in direct contact with the upper surface of the lower traveling body 110 and may be formed of an elastic material, for example, a rubber material. The brush 157 generally has a shape such as a square plate, and may be divided into a first brush 157a and a second brush 157b. Here, the first brush 157a is mounted on the second area 154b of the first mounting part 154, and the second brush 157b is mounted on the second area of the second mounting part 155.

Each of the first brush 157a and the second brush 157b may be directed in a direction for sweeping out the foreign matter at an optimum angle according to the forward rotation or the reverse rotation of the foreign material removal module 150. By such an arrangement, the first brush 157a and the second brush 157b may be arranged to be spaced apart from each other toward the center of the rotational trajectory or the swing center (swing axis) of the swing module 170. . The arrangement between the first brush 157a and the second brush 157b may be determined by the structures of the first mounting portion 154 and the second mounting portion 155.

The contact plate 158 is a component that adheres the brush 157 to the mounting bracket 151. The contact plate 158 may have a length corresponding to the length of the brush 157 and may have a square plate shape. In addition, the adhesion plate 158 may be formed of a metal alloy material, such as the mounting bracket 151. Specifically, the adhesion plate 158 may include a first plate portion 158a corresponding to the first brush 157a and a second plate portion 158b corresponding to the second brush 157b.

The coupling bolt 159 is a component coupled to the mounting bracket 151 through the adhesion plate 158 and the brush 157. Accordingly, the brush 157 is coupled to the mounting bracket 151 while being in close contact with the mounting bracket 151 by the contact plate 158. The coupling bolt 159 may have a first bolt 159a corresponding to the first brush 157 and a second bolt 159b corresponding to the second brush 157b.

A method of operating the foreign matter removing module 150 with respect to the lower traveling body 110 will be described with reference to FIG. 4.

Referring to this figure, the first brush 157a and the second brush 157b of the foreign material removal module 150 are spread toward the swing center C of the swing module 170 and have a generally 'L' shape. .

When the point where the first brush 157a and the second brush 157b meet is rotated about the swing center C, the trajectory according to the rotation is defined as the rotation trajectory RT of the foreign material removal module 150. Here, the swing center (C) relative to the radial lines (RL) extending in a rotation locus (RT), first to the first brush (157a) and a second brush (157b) are each a first angle (θ ₁₎ 2 It may be arranged to have an angle θ ₂ .

Thereby, the debris removal module 150, specifically the sweeping unit 156, starts contact with the debris at the first position P ₁ during the forward rotation R ₁ within the rotation trajectory RT. In reverse rotation (R ₂ ), contact with the foreign matter starts at the second position (P ₂ ). This is because the position to the first brush (157a) is positioned in the first position (P _1), second brushes (157b) has a first position (P ₁₎ and another second position (P _2).

Accordingly, the first brush 157a is responsible for sweeping the upper surface of the frame 111 at the forward rotation R ₁ , and the second brush is sweeping the upper surface of the frame 111 at the reverse rotation R ₂ . 157b will be in charge. As a result, the arrangement structure / angle of the first brush 157a and the second brush 157b may be set to be most suitable for sweeping out the foreign matter for each rotation (R ₁ and R ₂ ).

In the present embodiment, the magnitudes of the first angle θ ₁ and the second angle θ ₂ are the same so that the first brush 157a and the second brush 157b are symmetrical with respect to the radius line RL. It can be arranged as an enemy. If the first angle (θ ₁₎ is approximately + 45 °, the second angle (θ ₂₎ is approximately - may be 45 °.

This angle (θ ₁ And θ _2), the foreign material removing module 150, a forward rotation (R ₁₎ a first brush (157a) of the first discharge direction (D ₁₎ to discharge the foreign matter, and remove foreign objects at the time of the rotation module (150 in accordance with the The second brush 157b may discharge the foreign matter in the second discharge direction D ₂ when () is rotated in the reverse rotation R ₂ . Here, the first discharge direction D ₁ and the second discharge direction D ₂ are directions perpendicular to the first brush 157a or the second brush 157b, respectively, and are approximately + 135 with respect to the radial line RL. °,-may be in the direction of 135 °.

The rotation trajectory RT has a different relationship for each region with respect to the upper surface of the frame 111. This is because the upper surface of the frame 111 has a rectangular shape rather than a square shape. Specifically, in the lower and upper portions of the frame 111 in this drawing, the rotation trajectory RT deviates from the upper surface of the frame 111. On the contrary, in the right and left portions of the frame 111, the rotation trajectory RT is positioned in an inner region spaced apart from the boundary of the frame 111.

When the debris removal module 150 is positioned at the lower and upper portions of the frame 111, at least a part of the first brush 157a and the second brush 157b is out of the upper surface of the frame 111. This arrangement structure allows the first brush 157a or the second brush 157b to drop the foreign matter collected during rotation in the lower or upper portion of the frame 111 to the outside of the region of the frame 111. Thereby, in addition to being pushed out of the swing module 170, the foreign matter may be essentially removed from the lower traveling body 110.

The foreign material removal module 150 and other types of foreign material removal modules will be described below.

Referring to this figure, the foreign material removal module 250 according to the present embodiment is substantially the same as the foreign material removal module 150 of the previous embodiment, but there is a difference in that it further has falling induction parts 254 'and 255'.

The drop guide parts 254 ′ and 255 ′ may be installed at the mounting

parts

254 and 255 to be positioned above the brush 257. Specifically, the first drop guide part 254 ′ is installed on the first mounting part 254 so as to be positioned above the first brush 257a, and the second drop guide part 255 ′ is above the second brush 157b. It may be installed in the second mounting portion 255 to be located in.

The drop guides 254 ′ and 255 ′ may extend helically. In this case, the falling induction parts 254 ′ and 255 ′ may have a height that increases toward the pillar part 253.

According to this configuration, when the foreign matter removal module 250 is rotated forward (R ₁ ) or reverse rotation (R ₂ ), the foreign matter adjacent to the swing module 170 (see FIG. 4 above) is transferred to the brush 257 and the mounting portion 254. 255 may be moved upward toward the pillar portion 253. Even in this case, the drop guides 254 'and 255' are dropped to the frame 111 and positioned in front of the brush 257. As described above, the drop induction parts 254 ′ and 255 ′ drop the foreign matter that rises on the mounting

parts

254 and 255 to the upper surface of the frame 111. As a result, the foreign matter does not pass over the mounting bracket 251, and thus cannot be introduced into the swing module 170 side.

Next, the debris removal module 350 for removing debris of the right and left portions of the frame 111 in FIG. 4 will be described with reference to FIGS. 6 to 8.

Referring to this figure, the foreign matter removal module 350 according to the present embodiment is substantially the same as the foreign matter removal module 150 of the previous embodiment, but in that the first brush 357a has an extension 357a-1. There is a difference. Specifically, the first brush 357a has an extension portion 357a-1 that protrudes laterally of the first mounting portion 354. The extension part 357a-1 further protrudes out of the pillar part 353. To this end, the first brush 357a may have a length greater than that of the second brush 357b.

In order to maintain the posture of the extension portion 357a-1, not only the first plate portion 358a of the contact plate 358 but also the second plate portion 358b may have a length corresponding to the extension portion 357a-1. Can be. In this case, the extension part 357a-1 may be coupled with them while being sandwiched between the first plate part 358a and the second plate part 358b.

Unlike the above, the second brush 357b instead of the first brush 357a may have an extension, or both the first brush 357a and the second brush 357b may have an extension. In addition, the extension part 357a-1 may be coupled to only the first plate part 358a or the second plate part 358b.

Referring to this figure, the extension portion 357a-1 protrudes out of the rotation trajectory RT. Corresponding to the length of the extension 357a-1 in contact with the boundary wall 116a by the crawler 116, the extent to which the extension 357a-1 protrudes out of the rotation trajectory RT may be determined.

According to this configuration, when the debris removal module 350 rotates in the forward rotation R ₁ or the reverse rotation R ₂ , the extension 357a-1 may contact the boundary wall 116a. Accordingly, the extension 357a-1 can sweep the foreign matter located adjacent to the boundary wall 116a.

For this reason, the foreign matter removing region by the foreign matter removing module 350 may extend beyond the range of the rotation trajectory RT to the range of the extension trajectory ET. Here, the extension trajectory ET is a boundary wall (or right) at the right and left sides of the frame 111 while leaving the region defined by the frame 111 in the upper or lower portion of the frame 111 more than the rotation trajectory RT. It may be a circular trajectory in contact with 116a).

Referring to the figure, the debris removal module 350 'according to the modification of the debris removal module 350, the extension 357a-1' protrudes longer than the extension 357a-1 of the previous embodiment. It may be.

Thereby, the extension 357a-1 ′ extends the extension trajectory ET which is larger than the preceding extension trajectory ET when the debris removal module 350 rotates in the forward rotation R ₁ or the reverse rotation R ₂ . ') Can be formed. These extensions 357a-1 ′ operate in a manner in which they are elastically folded and unfolded in contact with the crawler 116.

As a result, the foreign material removing module 350 ′ can sweep almost the region of the upper surface of the frame 111 of the lower traveling body 110 without omission. For this reason, the foreign matter can be effectively removed even at the corners of the right or left side of the frame 111.

Finally, another type of foreign material removal module 450 will be described with reference to FIGS. 9 and 10.

Referring to this drawing, the foreign material removal module 450 may include a mounting bracket 451, a driving unit 453, and a sweeping unit 456.

The mounting bracket 451 may have a coupling part 452a and a mounting part 452b. Coupling portion 452a may be a rod having a generally circular shape. The mounting portion 452b is connected to the end of the coupling portion 452a and may be a generally rectangular plate.

The drive unit 453 may be a forward / reverse rotatable motor. The motor may have a drive body 453a and an output shaft 453b. The drive body 453a may be mounted to the upper work body 130 (see FIG. 2). The output shaft 453b is a component that transmits the rotational force generated by the driving body 453a to the outside and may be inserted and coupled to the coupling part 452a.

The sweeping unit 456 may have a contact plate 458 and a coupling bolt 459 as well as the brush 457 as well as the previous embodiment. The brush 457 is formed to correspond to the mounting portion 452b and is coupled to the mounting portion 452b by the contact plate 458 and the coupling bolt 459. The brush 457 may be formed of a rubber material as described above.

According to this configuration, although the brush 457 is physically one, it can be moved between the first position P ₁ and the second position P ₂ by the driving of the driving unit 453. As a result, in the above embodiment, the same operation as that of the first brush 157a and the second brush 157b can be performed. Specifically, the brush 457 has a forward rotation (R ₁₎ when in the first position (P ₁₎ in the first brush (157a) and the function and the reverse rotation (R ₂₎ a second position (P ₂₎ at the time as It may be converted to and may function as the second brush 157b.

In addition, the first position P ₁ and the second position P ₂ of the brush 457 are not fixed positions but may be changed by the operation of the driving unit 453 according to the situation of the excavation site.

Referring to this figure, the brush 457 is switched between the first position P ₁ and the second position P ₂ , with its end rotating in an arc.

In addition, the first position P ₁ and the second position P ₂ of the brush 457 may be set differently according to circumstances. According to this configuration, for example, in the forward rotation R ₁ of the foreign matter removal module 450, the rotational trajectory RT of the foreign material removal module 450 is the first to fourth rotation trajectories RT ₁ to RT _4. You can form a variety of trajectories, such as).

As illustrated in the figure, the first rotation trajectory RT _{1 is} formed when the brush 457 has the smallest angle with the radial line RL passing through the swing center C. In contrast, the fourth rotational path RT _{4 is} formed when the brush 457 has the greatest angle with the radial line RL passing through the swing center C. The second rotational track RT2 and the third rotational track RT3 are located between the first rotational track RT ₁ and the fourth rotational track RT ₄ . The second rotation trajectory RT ₂ is located adjacent to the first rotation trajectory RT ₁ , and the third rotation trajectory RT ₃ is positioned adjacent to the fourth rotation trajectory RT ₄ .

Due to the angle adjustment of the brush 457, the foreign matter removing module 450 may be rotated along a suitable rotation trajectory RT according to the amount of the foreign matter. Specifically, when a large amount of soil is dropped onto the frame 111 as the foreign matter while the excavator 100 is excavating the slope, the operator operates the drive unit 453 to remove the foreign matter removal module 450. It can be rotated along the four rotation trajectories (RT ₄ ). Thereby, the sweeping unit 456 may first remove the outer portion of the soil, rather than removing the large amount of soil at once.

Then, the sweeping unit 456. The third rotation locus (RT _3), the second rotation locus (RT _2), first when the rotation locus (RT ₁₎₎ is rotated follows the sequentially, sweeping unit 456 the Soil can be removed little by little. Accordingly, the foreign matter removal module 450, and further, the operation of the excavator 100 may not be overloaded.

Further, while the sweeping unit 456 rotates along the forward rotation R ₁ or the reverse rotation R ₂ , the driving unit 453 follows the first rotational path RT ₁ and then moves to the fourth rotational path R. _The sweeping unit 456 may be switched to follow ₄ ). Specifically, switching of the sweeping unit 456 may occur when the sweeping unit 456 reaches the lower or upper portion of the frame 111 while rotating along the forward rotation R ₁ or the reverse rotation R ₂ . have. Thereby, due to the change in the attitude of the sweeping unit 456, the foreign matter that has been pushed to the sweeping unit 456 may be more effectively discharged out of the region of the frame 111.

Such a construction machine and a debris removal module used therein are not limited to the configuration and manner of operation of the embodiments described above. The above embodiments may be configured such that various modifications may be made by selectively combining all or part of the embodiments.

Industrial Applicability The present invention has industrial applicability in the field of manufacturing construction machinery and debris removal modules used therein.

Claims

A mounting bracket having an attachment portion attached to the upper workpiece of the construction machine, and a first mounting portion and a second mounting portion extending from the attachment portion; And

A first brush mounted on the first mounting portion and a second brush mounted on the second mounting portion to sweep off the foreign matter accumulated in the lower traveling body when the upper work body swings with respect to the lower traveling body of the construction machine. And a sweeping unit, wherein the first mounting portion and the second mounting portion are inclined with respect to each other.
The method of claim 1,

The mounting bracket,

Further comprising a pillar portion extending in the spaced apart direction from the attachment portion,

And the first mounting portion and the second mounting portion are integrally connected to each other by the pillar portion to function as a blocking wall to prevent the inflow of the foreign matter between the first mounting portion and the second mounting portion.
The method of claim 1,

The first mounting portion and the second mounting portion, respectively,

A first region having a width wider away from the attachment portion; And

And a second area extending in the same width in the first area and on which the first brush or the second brush is seated.
The method of claim 1,

The sweeping unit,

An adhesion plate that closely adheres the first brush to the mounting bracket; And

And a coupling bolt penetrating the contact plate and the first brush and coupled to the mounting bracket.
The method of claim 4, wherein

The first brush includes an extension protruding to the side of the first mounting portion,

The adhesion plate may include a first plate portion protruding and extending toward the side of the first brush and a second plate portion protruding and extending toward the side of the second brush.

The extension part is fitted between the first plate portion and the second plate portion, the foreign matter removal module for construction machinery.
The method of claim 1,

The mounting bracket,

It is disposed on the upper side of the first brush, and further comprising a drop induction unit extending in a spiral from the first mounting portion to drop the foreign material to guide the front of the first brush, foreign matter removal module for construction machinery.
A lower traveling body configured to be movable;

An upper workpiece having a work attachment and swingably connected to the lower traveling body; And

And a removal module having a sweeping unit installed on the upper work body to remove foreign matters accumulated on the lower traveling body.

The sweeping unit is rotated along a circular rotation trajectory around the swing axis of the upper workpiece, starts contacting the foreign matter at a first position during forward rotation, and contacts the foreign matter at a second position during reverse rotation. Configured to start, construction machinery.
The method of claim 7, wherein

The sweeping unit,

A first brush arranged to initiate contact with the foreign matter at the first position; And

And a second brush arranged along a crossing direction to said first brush, said second brush arranged to initiate contact with said foreign material at said second position.
The method of claim 8,

The lower traveling body includes a frame on which the upper work body is swingably mounted, and a crawler connected to the frame to protrude upward from the side of the frame,

At least one of the first brush and the second brush,

And an extension that elastically folds in contact with the side of the crawler during the forward and reverse rotations.
Lower traveling body;

An upper work body disposed above the lower traveling body; And

A removal module having a sweeping unit moved along a movement trajectory, the removal module being configured to remove foreign matter between the lower traveling body and the upper work body,

The sweeping unit is configured to start contacting the foreign matter at a first position when moving in a first direction and to start contacting the foreign matter at a second position when moving in a second direction.
The method of claim 10,

The sweeping unit is installed in the upper work piece,

The swing module is swingably connected to the lower traveling body so that the movement trajectory is a rotational trajectory, the first direction movement is forward rotation, and the second direction movement is reverse rotation. Included, construction machinery.
The method of claim 11,

The sweeping unit,

A first brush arranged to initiate contact with the foreign matter at the first position; And

And a second brush arranged along a crossing direction to said first brush, said second brush arranged to initiate contact with said foreign material at said second position.
The method of claim 12,

The first brush and the second brush,

A construction machine arranged so as to be spaced apart from each other toward the center of the rotation trajectory.
The method of claim 12,

The first brush and the second brush,

At least a part of which is installed in the upper work body to be out of the upper surface of the lower travel body in one position during the forward rotation and the reverse rotation.
The method of claim 12,

The removal module,

Further comprising a mounting bracket installed on the upper work piece,

The mounting bracket,

A first mounting portion for mounting the first brush to position the first brush, and a second mounting portion for mounting the second brush to position the second brush.
The method of claim 15,

The first mounting portion and the second mounting portion,

A construction machine, which is integrally connected to each other, and functions as a blocking wall to block the foreign matter from flowing toward the center of the rotational trajectory.
The method of claim 12,

The lower traveling body includes a frame on which the swing module is installed, and a side unit installed on the frame to protrude upward from the side of the frame to form a boundary wall,

At least one of the first brush and the second brush,

And a length that contacts the boundary wall during the forward rotation and the reverse rotation.
The method of claim 10,

The sweeping unit includes a brush,

The removal module further comprises a drive unit configured to move the brush between the first and second positions.
The method of claim 18,

The drive unit,

And move the brush so that the end of the brush draws an arc.
The method of claim 19,

The drive unit,

A drive motor installed in the upper work body, the drive motor being configured to rotate forward / backward for the first direction movement and the second direction movement,

The removal module,

And a mounting bracket connected to the output shaft of the drive motor, to which the brush is mounted.