KR20180102276A - Rotating plate type surface grinding machine and excavator equipped with the same - Google Patents

Abstract

The present invention relates to a rotating plate type surface grinding machine and an excavator including the same. According to the present invention, the rotating plate type surface grinding machine comprises: a rotating plate having a plurality of cutters formed on a surface facing a workpiece; a rotational driving unit connected to and rotating the rotating plate; an installation frame to install the rotational driving unit therein; a connection bracket to connect the installation frame to an excavator; and a rotational coupling unit coupling the installation frame to the connection bracket to be able to rotate with the rotating plate on a shaft intersecting a rotational central axis of the rotating plate. Accordingly, the angle of a rotating surface of the rotating plate is changed into a predetermined angle corresponding to a curved surface of the ground, concrete, asphalt, and the like, thereby maximizing an area of the rotating plate in contact with the curved surface, such as the ground, and the like, to increase surface cutting efficiency and quality, increasing structural stability and operation reliability for allowing the rotating plate to increase a contact area with the curved surface, such as the ground, and the like, and reducing manufacturing costs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating plate type surface grinding machine and an excavator equipped with the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rotary plate type surface grinding machine and an excavator having the same, and more particularly to a rotary plate type surface grinding machine capable of changing a rotation angle of a rotary plate to a predetermined angle corresponding to a curved surface such as a ground, And an excavator having the same. 2. Description of the Related Art

In general, a surface rougher is used in a surface leveling work for flattening a surface such as a ground, concrete, or asphalt, and it is possible to reduce excessive noise and dust generation compared with a manual work using a conventional hydraulic breaker or a rock drill, Improvement and reduction of work time.

A rotating drum type of groundwork machine for removing irregularities such as ground by rotating a drum provided with a large number of bits on the outer side surface among such a surface cutting is not suitable for a large number of applications because the surface area of the rotary drum, Had a very poor problem.

In order to overcome such a problem, a rotary plate type of earth wheel having a rotary plate provided with a large number of bits on the front surface thereof is used. In the prior art related to this, there is a "rotary plate type concrete wheel " of Korean Registered Utility Model No. 0129856. Comprising: a motor having a rotation axis; A drive housing for supporting the motor; A rotating means provided on a rotating shaft of the motor; And a connecting frame connecting the driving unit housing to the bucket boom.

However, in such a conventional rotary plate type of shearing machine, the surface area of the rotary plate contacting the surface of the ground or the like can be widened when the surface is worked, while the rotary plate is rotated in a state in which the angle is fixed with respect to the forward direction, When the surface of the ground such as the ground is continuously flattened, a part of the rotating plate can not come into contact with the surface of the ground or the like, thereby reducing the efficiency and quality of the surface working. Particularly, since the rotary plate type prior art rotary machine has the rotary plate fixed on the flat surface, it is difficult for the rotary plate to contact with the surface of the ground or the like which is severely bent.

In order to solve the problems of the conventional art, the present invention allows the rotating surface of the rotating plate to be changed to a predetermined angle corresponding to a curved surface such as a ground, a concrete, or an asphalt, It is possible to maximize the area of contact with the surface and to improve the efficiency and quality of the cutting work and to improve the structural stability and the reliability of operation so that the rotating plate can increase the contact area with the curved surface such as the ground, The objective is to reduce the cost of production.

According to an aspect of the present invention, there is provided a cutting apparatus comprising: a rotary plate having a plurality of cutters on a surface facing a workpiece; A rotation driving unit connected to the rotation plate to rotate the rotation plate; An installation frame on which the rotation drive unit is installed; A connection bracket connecting the installation frame to an excavator; And a rotation coupling portion for coupling the mounting frame to the connection bracket so as to be rotatable together with the rotation plate about an axis intersecting the rotation center axis of the rotation plate.

The rotary plate may be fixed so that each of the cutters is arranged in a swirl form from the center of the surface by a plurality of holders provided on the surface.

The mounting frame may be installed at a front end of the connection bracket so as to be rotatable to the left and right sides by the rotation coupling portion.

The mounting frame is formed to have a vertical cross section of a "C " shape and is inserted into an insertion groove formed at the front end of the connection bracket. The upper and lower ends are rotatably coupled Wherein the rotary coupling portion comprises: a shaft member vertically penetrating the installation frame and the connection bracket; And a shaft fixing member for fixing the shaft member such that the shaft member is not separated from the mounting frame and the connection bracket.

The connecting bracket includes a connecting portion for connecting to an arm of the excavator; A connecting plate provided perpendicularly to the connecting portion; A vertical plate provided perpendicularly to the connection plate and having a circumferential groove formed at a front end thereof so as to avoid interference with the rotation driving unit; And upper and lower plates that are formed to be perpendicular to upper and lower ends of the vertical plate and connected to the connection plate, respectively, and protrude forward from the vertical plate to form the insertion groove.

According to another aspect of the present invention, A boom provided on the vehicle body so as to be rotatable by the first driving unit; An arm provided on the boom so as to be rotatable by a second driving unit; And a rotary plate type surface washer according to one aspect of the present invention, which is provided on the arm so as to be rotatable by a third drive unit.

According to the rotary plate type surfacing machine and the excavator having the rotary plate type surfacing machine according to the present invention, the rotary surface of the rotary plate can be changed to a predetermined angle corresponding to the curved surface such as the ground, concrete or asphalt, It is possible to maximize the area of contact with the true face to improve the efficiency and quality of the work and to improve the structural stability and the reliability of operation so that the rotating plate can increase the contact area with the bent surface such as the ground On the other hand, the manufacturing cost can be reduced.

FIG. 1 is a perspective view showing a rotating plate type work piece according to an embodiment of the present invention. FIG.
2 is a side view showing a rotary plate type of spindle according to one embodiment of the present invention.
FIG. 3 is a plan view showing a rotating plate type work piece according to an embodiment of the present invention. FIG.
Figure 4 is a front view of a rotating plate type of spindle according to one embodiment of the present invention.
5 is a side view showing an excavator having a rotary plate type of earthworking machine according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. It should be understood that the present invention is not limited to these specific embodiments but includes all changes, equivalents, and alternatives included in the technical idea of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or corresponding elements, and redundant description thereof will be omitted .

1 to 3 are a perspective view, a side view, and a plan view showing a rotating plate type work piece according to an embodiment of the present invention.

1 to 3, a rotating plate type surface tool 100 according to one embodiment of the present invention includes a rotating plate 110, a rotation driving part 120, an installation frame 130, a connection bracket 140, (150).

The rotary plate 110 is provided with a plurality of cutters 111 on a surface facing a workpiece, for example, a surface facing a surface such as a ground, concrete, or asphalt. A plurality of holders 112 may be provided on the rotary plate 110 for fixing the cutters 111, respectively.

The rotation driving unit 120 is connected to the rotation plate 110 to rotate the rotation plate 110. The rotary drive unit 120 may be, for example, a hydraulic motor 121 driven by hydraulic pressure as in the present embodiment, a general motor for converting electric energy into rotational motion, and the like. 110 may be fixed to the mounting frame 130, and may further provide a driving force for rotating the rotating plate 110.

The rotation driving unit 120 is configured to fix the hydraulic motor 121 to the mounting frame 130 through the fixed cover 122. For example, the hydraulic driving unit 120 includes a hydraulic motor 121 installed through the mounting frame 130, And the fixed cover 122 is fixed to the fixed frame 130 by the plurality of second fixing bolts 124. The fixed cover 122 is fixed to the fixed frame 122 by a plurality of first fixing bolts 123, The fixed cover 122 mediates the coupling between the hydraulic motor 121 and the mounting frame 130. At this time, the circular arrangement of the first fixing bolts 123 and the circular arrangement of the second fixing bolts 124 are concentric circles So that the fixing force of the bolt and the spatial efficiency of the bolt arrangement can be improved.

The rotation driving unit 120 includes a shaft fixing plate 126 integrally formed at the end of the rotating shaft 125 rotated by the hydraulic motor 121 and a plurality of third fixing bolts 127, So that the rotating shaft 125 rotates together with the rotating plate 110. The rotation plate 110 may be provided with a dispersion plate 113 between itself and the shaft fixing plate 126. The dispersion plate 113 serves as a reinforcing member when engaged with the third fixing bolt 127 And the force of the third fixing bolt 127 can be distributed to the entirety of the rotary plate 110.

The installation frame 130 is provided with a rotation driving unit 120. The installation frame 130 may follow the coupling method using the fixed cover 122 or the like as described above, but the present invention is not limited thereto. The mounting frame 130 may be installed at the front end of the connection bracket 140 so as to be rotatable to the left and right sides by the rotation coupling part 150. [ For example, the mounting frame 130 can rotate in the range of about 90 degrees to the left and the right in the connecting bracket 140, thereby rotating the mounting frame 130 in a range of about 180 degrees as a whole.

The mounting frame 130 is inserted into the insertion groove 141 formed at the front end of the connection bracket 140 so as to have a vertical section of a " C "shape as in the present embodiment, 150 to the connection bracket 140. [0064] Therefore, the installation frame 130 can be smoothly rotated from the connection bracket 140 together with the rotation driving unit 120 and the rotation plate 110.

The connection bracket 140 connects the installation frame 130 to the excavator 200 (shown in FIG. 5). For this purpose, the installation frame 130 is rotatably . The connecting bracket 140 is provided with a connecting and holding force between the mounting frame 130 and the arm 230 (shown in FIG. 5) of the excavator 200, while maintaining the durability of the connecting bracket 140, For example, a connecting portion 142 to be connected to the arm 230 of the excavator 200, a connecting plate 143 provided perpendicularly to the connecting portion 142, A vertical plate 145 having a circumferential groove 146 formed at the front end thereof so as to avoid interference with the rotary drive unit 120 and specifically the hydraulic motor 121 and a vertical plate 145 perpendicular to the upper and lower ends of the vertical plate 145 And upper and lower plates 147 and 148 that are formed to be connected to the connection plate 144 and protrude forward from the vertical plate 145 so that the insertion groove 141 is formed. Here, the connection part 142 may have a plurality of connection holes 143 for connection with the arm 230 and the like. The connection brackets 140 may be connected by bolting or riveting, or may be connected to each other by welding as in the present embodiment. Also, the lower plate 148 may be formed to warp upward in consideration of the angle of the arm 230 of the excavator 200 and the working angle of the rotary plate 110.

The rotation coupling unit 150 allows the installation frame 130 to be coupled to the connection bracket 140 so as to be rotatable together with the rotation plate 110 about an axis intersecting the rotation center axis of the rotation plate 110. Here, the rotation center axis of the rotation plate 110 may be, for example, the rotation axis 125 of the rotation driving unit 120. The axis crossing the rotation center axis of the rotation plate 110 may include, for example, a case where the rotation center axis of the rotation plate 110 intersects the rotation center axis at right angles, a case where the rotation center axis intersects the rotation center axis of the rotation plate 110, , A case of rotating left and right as in the present embodiment, and a case of rotating at various angles.

The rotary joint 150 may have a variety of rotational connection schemes using connection shafts for rotational connection between the installation frame 130 and the connection bracket 140. In this embodiment, And a shaft fixing member 152 for fixing the shaft member 151 to the mounting frame 130 and the connection bracket 140 so as not to be detached from the mounting frame 130. [ Here, the shaft member 151 may be a bolt member having a head, and the shaft fixing member 152 may be a nut member screwed to the shaft member 151. The shaft member 151 may be provided with bearings or the like as necessary or in addition to prevent rotation and wear of the mounting frame 130 and the connection bracket 140.

4, the rotating plate 110 is formed by a holder 112 provided on a surface of each cutter 111 facing the object to be cut from a center of the surface facing the object to be cut, As shown in FIG. Therefore, by the spiral arrangement structure of the cutter 111, not only the case where the cutter 1110 is broken can be reduced during the machining of a rock having a high hardness, but also the resistance is reduced to prevent the rotational speed from lowering, The holder 112 may be coupled to the rotary plate 110 and the cutter 111 by various methods including welding, screwing, interference fit, ratchet coupling, and the like.

5 is a side view showing an excavator having a rotary plate type of earthworking machine according to an embodiment of the present invention.

5, an excavator 200 having a rotary plate type work machine according to an embodiment of the present invention includes a body 210, a boom 220 installed on the body 210, and an arm 220 connected to the boom 220. [ (230), and a rotary plate type surface tool (100) according to the present invention provided on the arm (230). Here, since the rotary plate type planter 100 has been described in detail with reference to FIGS. 1 to 4, its explanation will be omitted.

The vehicle body 210 can be driven by power supplied from an engine or the like. As another example, the vehicle body 210 may be configured to be towed and driven by a separate vehicle. When the vehicle body 210 has an engine, the vehicle body 210 may be configured to provide the hydraulic pressure used in the first to third driving units 221, 231, 241 and the like to be described later by using the power generated from the engine. Such a hydraulic pressure can enable the operation of each of the desired driving portions by controlling the control valve for the hydraulic circuit.

The boom 220 is rotatably mounted on the vehicle body 210 by a first driving unit 221. The boom 220 may be installed such that one end of the boom 220 is rotatable about the first shaft member 222 at the vehicle body 210 by the first shaft member 222. The first driving part 221 may be a hydraulic cylinder and both ends of the first driving part 221 are hinged to the vehicle body 210 and the boom 220 so that the boom 220 can be rotated from the body 210 during driving .

The arm 230 is provided on the boom 220 so as to be rotatable by the second driving unit 231. The arm 230 may be installed such that one end of the arm 230 is rotatable about the second shaft member 232 at the other end of the boom 220 by the second shaft member 232. The second driving unit 231 may be a hydraulic cylinder and both ends of the second driving unit 231 are hinged to the boom 220 and the arm 230 so that the arm 230 can be rotated from the boom 220 .

The rotary plate type planter 100 is provided on the arm 230 so as to be rotatable by the third driving part 241. [ The rotary plate type planter 100 may be installed on one of the connection holes 143 so as to be rotatable about the fourth shaft member at the other end of the arm 230 by a fourth shaft member (not shown). The third driving unit 241 may be a hydraulic cylinder and both ends of the third driving unit 241 are hinged to the arm 230 and the other connecting hole 143 so that the rotary driving plate 100 ).

According to the rotary plate type surface mill according to the present invention and the excavator having the same, the rotary surface of the rotary plate can be changed to a predetermined angle corresponding to the curved surface such as ground, concrete, or asphalt, It is possible to maximize the area of contact with the curved surface of the workpiece, thereby improving the efficiency and quality of the work.

Further, according to the present invention, it is possible to increase the reliability of the structural stability and operation of the rotating plate to increase the contact area with the curved surface such as the ground, and reduce the manufacturing cost.

Although the present invention has been described with reference to the accompanying drawings, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiment, but should be determined by the claims and equivalents thereof.

110: spindle 111: cutter
112: holder 113: dispersion plate
120: rotation drive unit 121: hydraulic motor
122: fixed cover 123: first fixing bolt
124: second fixing bolt 125: rotary shaft
126: shaft fixing plate 127: third fixing bolt
130: installation frame 140: connection bracket
141: insertion groove 142:
143: connection hole 144: connection plate
145: vertical plate 146: avoiding groove
147: upper plate 148: lower plate
149: reinforcing piece 150:
151: shaft member 152: shaft fixing member
210: Body 220: Boom
221: first driving part 222: first shaft part
230: arm 231: second driving part
232: second shaft member 241: third driving part

Claims (6)

A rotary plate on which a plurality of cutters are provided on a surface facing a workpiece;
A rotation driving unit connected to the rotation plate to rotate the rotation plate;
An installation frame on which the rotation drive unit is installed;
A connection bracket connecting the installation frame to an excavator; And
A rotation coupling part for coupling the mounting frame to the connection bracket so as to be rotatable together with the rotation plate about an axis crossing the rotation center axis of the rotation plate;
And a rotary plate type surface cutting machine. The method according to claim 1,
The rotating plate includes:
Wherein each of the cutters is fixed to be arranged in a swirl form from the center of the surface by a holder provided in a plurality of on the surface. The method according to claim 1,
The installation frame
And is installed at a front end of the connection bracket so as to be rotatable to the left and right sides by the rotation coupling portion. The method of claim 3,
The installation frame
And is inserted into an insertion groove formed at a front end of the connection bracket and has an upper end and a lower end rotatably coupled to the connection bracket by the rotation coupling portion,
The rotary coupling unit includes:
A shaft member vertically penetrating the mounting frame and the connection bracket; And
A shaft fixing member for fixing the shaft member so as not to be separated from the mounting frame and the connection bracket;
And a rotary plate type surface cutting machine. The method of claim 4,
The connection bracket
A connecting portion for connecting to an arm of the excavator;
A connecting plate provided perpendicularly to the connecting portion;
A vertical plate provided perpendicularly to the connection plate and having a circumferential groove formed at a front end thereof so as to avoid interference with the rotation driving unit; And
An upper plate and a lower plate which are perpendicular to the upper and lower ends of the vertical plate and are connected to the connection plate and protrude forward from the vertical plate so that the insertion groove is formed;
And a rotary plate type surface cutting machine. Body;
A boom provided on the vehicle body so as to be rotatable by the first driving unit;
An arm provided on the boom so as to be rotatable by a second driving unit; And
A rotary plate type surface-cutting machine according to any one of claims 1 to 5, provided on the arm so as to be rotatable by a third driving portion;
And an excavator for excavating the excavator.

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