KR20100013829A

KR20100013829A - Cutting apparatus mounted on the arm of excavator

Info

Publication number: KR20100013829A
Application number: KR1020080075533A
Authority: KR
Inventors: 김재식
Original assignee: (주)부광티알씨
Priority date: 2008-08-01
Filing date: 2008-08-01
Publication date: 2010-02-10

Abstract

PURPOSE: A detachable cutter for a construction vehicle is provided to use cutter blades attached to actuating arms for longer time. CONSTITUTION: A detachable cutter for a construction vehicle comprises a turn table(2), a main body(4), actuating arms(6,8), cylinders(10,12), and blades(14). The turn table is selectively attached to the leading end of an arm of an excavator. The main body is integrated with the turn table. The actuating arms are hinged on the main body to have a crossing action like scissors. The cylinders are connected to the main by on one end and to the actuating arms on the other. The blades are installed on the actuating arms.

Description

Removable cutting machine for heavy equipment vehicles {cutting apparatus mounted on the arm of excavator}

The present invention relates to a heavy-duty vehicle mounting cutter, and more particularly, to a heavy-duty vehicle mounting cutter that can greatly extend the life of the blade in a cutter mounted on a heavy-duty vehicle such as an excavator.

The present invention relates to a cutting machine that can be recycled by cutting the reinforcing bar, metal plate or section steel, etc. generated as a by-product from the demolition of concrete structures, crushing of machinery, and the like with scissors. Cutters are typically used mounted on the arm tip of a heavy duty vehicle.

In this manual, heavy-duty vehicles usually refer to excavators, but rather broadly. Heavy-duty vehicles include booms that swing and move up and down by hydraulic cylinders, arms hinged to the ends of the booms, cutters installed on the ends of the arms, and cabins and engines that the driver can ride. Means the equipment including a wheel or a caterpillar is installed on the body for the main body and the mobility is installed.

Hereinafter, a conventional heavy equipment vehicle mounting cutter will be described with reference to the accompanying drawings. 1 is a schematic front view of a conventional cutting machine, in particular a cutting machine.

The cutter W is hinged to the turntable 100 for selectively attaching and detaching the tip of the arm, the main body 102 integrally formed with the turntable 100, and the main body 102 to perform cross movement such as scissors. Two working arms 104 and a cylinder 106, one end of which is connected to the body 102 and the other end of which is connected to the operating arm 104 for the hinge movement of the operating arm 104.

In particular, the two blades (110, 112), such as scissors to cut the object by the shear force, but when cutting the steel (H), because the eccentric force is applied to the shape steel due to its intrinsic characteristics, the object bounces in front of the cutter You will be given strength to go out. To this end, there has been an effort to bend the blade into a sigot (ㅅ) shape or to make the cutting edge uneven like a saw blade. This is shown in detail in Utility Model Registration Application No. 20-2003-0000661 filed by the present inventors with the Korean Patent Office.

An object of the present invention is to provide a cutter having a blade of a further improved form based on the known technology filed above.

Another problem with the prior art is that blades cannot be used for a long time. In other words, after some use, the blade was reprocessed or had to be replaced with a new one if the wear was severe. This cycle was too short, which was inconvenient for work and costly.

An object of the present invention for the above problems, in the tong-type cutter that is installed for shearing work on the arm tip of a heavy-duty vehicle, such as an excavator, to provide a technique for long use of the blade attached to both working arms It is in doing it. Furthermore, another object of the present invention is to provide an anti-slip means for preventing the cutting object from being thrown forward of the cutter.

The above object is, the boom (boom) that is swinging and up and down maneuvered by the hydraulic cylinder, the arm hinged to the tip of the boom, the main body on which the engine is installed and the wheels installed on the main body for mobility Or used as installed on the tip of the arm of a heavy-duty vehicle including a caterpillar;

A turntable for selectively attaching and detaching the tip of the arm; A body integral with the turntable; An actuating arm hinged to the body to perform cross motion such as scissors; A cylinder, one end of which is connected to the main body and the other end of which is connected to the operating arm for the hinge movement of the operating arm; In the detachable cutter for a heavy-duty vehicle comprising a blade installed on the cutting portion of the operating arm;

The working arm is provided with a seating seat in the form of a needle (b) so that the blade is seated; The blade forming the cutting part by being fixed by a plurality of fastening bolts in a state seated on the seating sheet, the square is symmetrical left and right with respect to the first center line such as the longitudinal direction so that all four long edges can be used as the cutting edge. It is a rod body, is achieved by a removable cutter for a heavy-duty vehicle, characterized in that the tap hole to which the fastening bolt is coupled is formed along the first center line.

According to another feature of the invention, the blade is a rectangular cross-section of the bar and the narrow surface from the narrow side relative to the second centerline at right angles to the longitudinal direction of the blade, the same size projections are the length of the blade Protruding and formed in two or more places along the direction, there is provided a detachable cutter for a heavy-duty vehicle, characterized in that the projection mounting groove is formed in which the projection is fitted in a male and female coupling manner.

According to the configuration as described above, by rotating the blade in the left and right and front and rear directions can be coupled to the seating seat of the operating arm can be used as a cutting edge all four edges of the blade. Therefore, by changing only the direction of the blade can be extended four times the life without having to correct or replace.

In addition, the protrusion is formed along the longitudinal direction of the blade can be solved the problem that the cutting object is caught by the protrusion and bounced forward of the cutter.

Hereinafter, with reference to the accompanying drawings in the detailed description of the present invention will be described in more detail.

Figure 2 is a perspective view of a removable cutter for a heavy equipment vehicle according to an embodiment of the present invention, Figure 3 is a plan view, Figure 4 is a schematic cross-sectional view taken in the A-A direction of FIG. 5 is a plan view of a blade according to another embodiment of the present invention. 6 is a schematic side view of a heavy duty vehicle showing a state in which the cutter of the present invention is used.

The cutter of the present invention has a symmetrical structure. So, for the configuration that can be clearly determined except for the necessary parts, only one side will be given the reference numerals and will be described.

Cutting machine (W) of the present invention, as shown in Figure 6, the boom (200, boom) that is freely swinging and up and down by the hydraulic cylinder, and the arm (202, hingedly connected to the tip of the boom 200) And the main body 204 on which the engine and the like are installed, and the wheel or the caterpillar 206 installed on the main body for mobility, to be used at the tip of the arm 202 of the heavy-duty vehicle.

The cutter basically comprises a turntable 2 for selectively detaching at the tip of the arm 202; A main body 4 integral with the turntable 2; Actuating arms 6 and 8 hinged to the body 4 to perform cross motion such as scissors; The hinges of the operating arms 6 and 8 comprise cylinders 10 and 12, one end of which is connected to the body and the other end of which is connected to the operating arm. The connection method of the cylinder ends 10a and 12a and the main body 4 and the cylinder ends 10b and 12b and the operating arms 6 and 8 is symmetrical with the conventional one. The basic driving method of the cutter is the same as the conventional one. Therefore, the configuration or form of the cutter does not limit the scope of the present invention.

A feature of the invention is characterized by the blades 14 which are respectively installed on the operating arms 6 and 8. Since two blades 14 which are symmetrically installed on both working arms 6 and 8 have the same configuration, the following description will be given with reference to only one working arm 8.

The operating arm 8 is provided with a seating sheet 16 extending in the form of a needle (b) so that the blade 14 is seated. The seating sheet 16 should be equal to or longer than the blade 14.

The blade 14 is fixed by the plurality of fastening bolts 18 in a state seated on the seating sheet 16 to form a cutting portion. The blade 14 is a rectangular bar body that is symmetrical left and right with respect to the first center line C1 extending in the same direction as its longitudinal direction. A tap hole 20 through which the fastening bolt 18 may be screwed is provided along the first center line C1. The narrow width W1 of the blade 14 should be greater than or equal to the bottom width W2 of the seating sheet. Furthermore, it is preferable that the bottom surface 16a of the seating sheet has the same dimensions as the top surface 14a of the blade. The through hole 22 penetrating the bottom surface 16 is also provided at a position corresponding to the tab hole 20 of the blade.

This makes it possible to use all four elongated edges E1, E2, E3 and E4 as cutting edges. This is because the user dismantles the fastening bolt 18 and puts one of the long edges at the cutting position to fix the fastening bolt 18 again. As shown, the target object can be cut by the first edge E1.

According to the embodiment of the present invention, the blade 14 is a rod having a rectangular cross section. The blade 14 is a high-strength material capable of cutting metal, and high speed steel, cemented carbide, and the like may be used. The cross section of the blade 14 may be square, of course, but the material will be used a lot.

According to another embodiment of the present invention, the size of the left and right sides of the blade 14 are symmetrical with respect to the second center line C2 perpendicular to the longitudinal direction of the blade 14 from the side surface 14b. The same protrusions 24 protrude from two or more places along the longitudinal direction of the blade 14.

This projection 24 is shown in the form of a semi-circle of semi-circular cross section, but may also be a triangular rod. As shown, the protrusions 24 are formed to protrude in two places along the longitudinal direction of the blade 14. The semicircular form of the protrusions 24 is a consideration for increasing the resistance to abrasion.

The side wall 16b of the seating sheet is provided with a protrusion seating groove 26 formed at a position corresponding to the protrusion 24. The protrusions 24 and the protrusion seating grooves 26 are male and female to be closely coupled to each other.

According to this, as shown in FIG. 3, the cutting object H is caught by the protrusion 24 and slides along the edge of the blade 14 to prevent it from being thrown forward of the operating arms 6 and 8.

The technical spirit of the present invention should not be construed as being limited to the illustrated and described forms. For example, there will be no necessity to be symmetrically formed with respect to the first center line C1 from the basic shape (square column) of the blade 14 to the protruding protrusion 24 therefrom. This is because the shape of the side wall 16b of the seating sheet may be designed to fit both the protrusions 24 of the blade. However, the protrusions 24 should be symmetrical with respect to the second center line C2. This is because all four corners (E1, E2, E3, E4, see FIG. 4) can be used as cutting edges. An example of this is shown in FIG. 5 (a).

The protrusions 24 may be triangular or trapezoidal as well as semicircular. This trapezoidal shaped protrusion 24 is shown in Fig. 5 (b). The projection seating groove 26 should of course be trapezoidal like the projection 24.

1 is a schematic front view of a conventional cutting machine, in particular a cutting machine.

Figure 2 is a perspective view of a removable cutter for a heavy equipment vehicle according to an embodiment of the present invention, Figure 3 is a plan view, Figure 4 is a schematic cross-sectional view taken in the A-A direction of FIG.

5 is a plan view of a blade according to another embodiment of the present invention.

6 is a schematic side view of a heavy-duty vehicle to which the working apparatus of the present invention is applied.

Explanation of symbols on the main parts of the drawings

2 ; Turntable 4; main body

6,8; Working arm 10,12; cylinder

14; Blade 16; Seating sheet

18; Fastening bolt 20; Tap ball

24; Projection 26; Projection seating groove

Claims

It includes a boom slewing and up and down maneuvered by a hydraulic cylinder, an arm hinged to the tip of the boom, a main body on which an engine, etc. are installed, and wheels or tracks installed on the main body for mobility. As used to be installed on the tip of the arm of the heavy-duty vehicle;

A turntable (2) for selectively attaching and detaching to a tip of the arm; A main body 4 integral with the turntable 2; Actuating arms (6,8) hinged to the body (4) for cross motion such as scissors; Cylinders 10 and 12 and one end connected to the main body 4 and one end connected to the main body 4 for hinge movement of the operating arms 6 and 8, respectively. In the detachable cutter for a heavy-duty vehicle comprising a blade (14) installed at the cutting portion of the;

The working arms 6 and 8 are provided with seating sheets 16 having a needle-shaped shape so that the blades 14 are seated; The blade 10 is to be formed by cutting a plurality of fastening bolts 18 in a state seated on the seating sheet 16, all four elongated edges (E1, E2, E3, E4) It is a rectangular rod body symmetrical left and right with respect to the first center line (C1), such as the longitudinal direction of the blade 14 so as to use as a cutting edge, the tap hole 20 to which the fastening bolt 18 is coupled is the first center line Removable cutting machine for heavy equipment, characterized in that formed along (C1).

The method of claim 1, wherein the blade 14 is a rod-shaped rectangular cross-section and the size is so that the left and right symmetric with respect to the second center line (C2) perpendicular to the longitudinal direction of the blade 14 from the narrow surface The same protrusions 24 are formed to protrude at two or more places along the longitudinal direction of the blade 14; Removable cutting machine for a heavy-duty vehicle, characterized in that formed in the side wall (16b) of the seating seat 16 is a projection seating groove (26) that can be fitted in the male and female projection method.

3. The removable cutter of claim 2, wherein the protrusion (26) has a semicircular cross section.