Cutting apparatus with adjustable direction

Abstract

A cutting apparatus having an adjustable direction according to the present application can include a cutting frame, a cutting shaft and a cutting blade, the cutting shaft being disposed at a front portion of the cutting frame when a forward direction of the cutting apparatus is a front and an opposite direction thereof is a rear, the cutting blade being fitted into the cutting shaft, a direction adjusting unit positioned below the cutting frame at a rear portion of the cutting frame so as to be connected to the cutting frame and adjust the cutting shaft to enable the cutting shaft to be rotated, and an intermediate frame for supporting the direction adjusting unit.

Description

TECHNICAL FIELD

[0001] The present application relates to a cutting machine, and more particularly, to a cutting machine having an adjustable direction. BACKGROUND

[0002] If the cutting machine cannot accurately cut concrete or the like along a predetermined cutting line, the cutting performance can be greatly deteriorated. Therefore, it is very important for the cutting machine to cut while accurately moving along the cutting line.

[0003] The cutting machine configured to cut concrete or the like must not move fast, but must move slowly so that the cutting machine does not move 20 cm or more per minute. The reason for this is that it takes time to cut concrete or the like, and in addition, in order to accurately cut, the moving speed of the cutting machine must not be high.

[0004] Generally, a conventional cutting machine moves by a hydraulic motor. However, when the driving force of the hydraulic motor is directly transmitted to the wheel, the cutting machine moves fast, and thus accurate control becomes difficult.

[0005] There can be cases in which the cutting shaft and the cutting blade of the cutting machine are located at each of opposite sides of the cutting frame, and thus the cutting blade is rotated and driven at opposite sides of the front of the cutting machine, and cases in which the cutting shaft and the cutting blade of the cutting machine are located at one side (for example, the right side) of the cutting frame, and thus the cutting blade is rotated and driven at one side of the front of the cutting machine.

[0006] When the cutting machine cuts concrete or the like while slowly moving along a cutting line (for example, a straight line), the cutting blade is rotated at one side (for example, the right side) of the cutting frame, thereby generating a frictional force between the ground and the cutting blade at the right side of the cutting frame, and thus the cutting machine cannot accurately move along the cutting line.

[0007] As described above, if the cutting machine cannot perform cutting while accurately moving along a predetermined cutting line, the cutting performance can be greatly deteriorated. The present application provides various measures to solve the above-described problem. SUMMARY

[0008] TECHNICAL PROBLEM

[0009] An object of the present application is to provide a cutting machine having an adjustable direction.

[0010] TECHNICAL SOLUTION

[0011] In order to achieve the above object of the present application and to achieve the characteristic effects of the present application, the characteristic structure of the present application is as described below.

[0012] A cutting machine having an adjustable direction according to the present application includes a cutting frame, a cutting shaft and a cutting blade, assuming that a direction in which the cutting machine advances is a forward direction and a direction opposite to the forward direction is a backward direction, the cutting shaft is disposed at a front of the cutting frame, the cutting blade is fitted on the cutting shaft, and a direction adjustment unit positioned below the cutting frame at a rear of the cutting frame is connected to the cutting frame, the direction adjustment unit is configured to adjust the cutting shaft to enable the cutting shaft to rotate.

[0013] The direction adjustment unit can be configured to be adjusted to correspond to a direction and an angle required for rotation set based on a position of the cutting shaft and a size of the cutting blade.

[0014] The direction adjustment unit can include an upper plate, a lower plate, a first direction adjustment fastening portion at a left side of a rear of the upper plate, and a second direction adjustment fastening portion at a right side of the rear of the upper plate, a fixed fastening portion can be located at each of side surfaces in opposite sides of each of the upper plate and the lower plate, a central fastening portion can be inserted into each of the upper plate and the lower plate, the central fastening portion is configured to function as a rotation shaft, and the direction adjustment unit can control movement of the upper plate using the first direction adjustment fastening portion and the second direction adjustment fastening portion, thereby controlling rotation of the cutting shaft.

[0015] The direction adjustment unit can be configured such that, when the cutting shaft is located at a right side of the front of the cutting machine, the second direction adjustment fastening portion is fastened so that a right side surface of the upper plate cannot move backward, a first insertion hole at a left side surface of the upper plate moves backward, and a second insertion hole at the right side surface of the upper plate moves forward, thereby the cutting shaft rotates in a counterclockwise direction.

[0016] The direction adjustment unit can be configured such that, when the cutting shaft is located at a left side of the front of the cutting machine, the first direction adjustment fastening portion is fastened so that the left side surface of the upper plate cannot move backward, the first insertion hole at the left side surface of the upper plate moves forward, and the second insertion hole at the right side surface of the upper plate moves backward, thereby the cutting shaft rotates in a clockwise direction.

[0017] Each of the insertion holes of the upper plate into which the fixed fastening portions are respectively inserted can be constituted by a space extending a predetermined length in a longitudinal direction, and the insertion holes of the upper plate can move forward and backward around the fixed fastening portions to control rotation of the cutting shaft.

[0018] The fixed fastening portions can include fixed bolts, and each of the first direction adjustment fastening portion and the second direction adjustment fastening portion can include an adjustment screw.

[0019] The cutting machine can further include a first power motor provided at one side of the cutting machine; a first power wheel configured to be driven by the first power motor; a first speed reducer configured to connect the first power motor and the first power wheel to each other between the first power motor and the first power wheel; a second power motor provided at the other side of the cutting machine; a second power wheel configured to be driven by the second power motor; and a second speed reducer configured to connect the second power motor and the second power wheel to each other between the second power motor and the second power wheel, wherein the first speed reducer and the second speed reducer can be provided such that the cutting shaft can be moved forward while maintaining a set direction during cutting.

[0020] Advantageous Effects

[0021] The present application has the following effects.

[0022] In the embodiment of the present application, when cutting is performed after the cutting frame is rotated in a predetermined direction and a predetermined angle and then fixed, control can be performed so that the cutting machine can be accurately moved along a predetermined cutting line.

[0023] In the embodiment of the present application, the speed reducer is connected to the hydraulic motor of the cutting machine, whereby the movement of the cutting machine can be more accurately controlled when cutting is performed after the cutting frame is rotated and then fixed, as compared to when cutting is performed.

[0024] Further, the present application has an effect in that a vertical speed reducer is further included, thereby maintaining a small-sized state of the cutting machine without increasing the width of the cutting machine.

[0025] Further, the present application has an effect in that the cutting machine is stably moved by the structure of the track unit including the power wheel. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 FIG. 1 is a view showing an external shape of a cutting machine according to an embodiment of the present application.

[0027] Figure 2 FIG. 2 is a view showing a frame structure of the cutting machine according to the embodiment of the present application.

[0028] Figure 3 FIG. 3 is a view showing a hydraulic motor installed in the cutting machine according to the embodiment of the present application.

[0029] Figure 4 FIG. 4 is a view showing a structure of a track unit according to the embodiment of the present application.

[0030] Figure 5 FIG. 5 is a view showing movement of the cutting machine using a signal generator according to the embodiment of the present application.

[0031] Figure 6 is a view showing the direction of adjustment of an upper plate (upper adjustment plate) according to an embodiment of the present application.

[0032] Figure 7 is a view showing the external shape of a cutting machine including an engine unit and an engine oil unit according to an embodiment of the present application.

[0033] Figure 8 is a view showing that the movement of a cutting machine is guided based on a signal of a signal generator according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following detailed description of the application will be made with reference to the accompanying drawings, which show specific embodiments of the application, based on which the application can be embodied by way of example. These embodiments will be described in detail to the extent that one skilled in the art can implement the application. It should be understood that various embodiments of the application differ from each other, but are not necessarily mutually exclusive. For example, specific shapes, structures, and features described herein as being part of one embodiment can also be implemented on another embodiment without departing from the spirit and scope of the application. Also, it should be understood that the location or arrangement of individual elements within each disclosed embodiment can be modified in order to accommodate different user requirements without departing from the spirit and scope of the application. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the application is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. In the drawings, like numerals refer to the same or similar functionality throughout several aspects.

[0035] Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings, so that one skilled in the art can easily implement the present application.

[0036] Figure 1 is a view showing the external shape of a cutting machine according to an embodiment of the present application.

[0037] The cutting machine according to the present application can cut a hard ground, a wall, etc. made of concrete, etc. At this time, the cutting machine according to the present application can be controlled more stably and precisely.

[0038] First, as shown in a view showing the appearance of a cutting machine according to an embodiment of the present application, Figure 1As can be seen, the cutting machine can include a main unit 400, a rail unit 110, and a cutting blade 310, wherein the cutting blade 310 can move upward and downward. The cutting machine can move by the rail unit 110, and the cutting blade 310 can move upward and downward to cut concrete or the like. Hereinafter, the structure of the cutting machine will be described in more detail. In the following description, for convenience of description, it is assumed that the direction in which the cutting machine advances is a forward direction, and the direction opposite to the direction is a rearward direction. That is, the side on which the cutting blade 310 is located can be expressed as the front, and the side opposite to the side can be expressed as the rear.

[0039] Figure 2 FIG. 1 is a view showing a frame structure of a cutting machine according to an embodiment of the present application.

[0040] As can be seen from FIG. 1, the cutting machine can include a cutting frame 300, an intermediate frame 200 (any one of various frame names such as a main frame can be used, and "intermediate frame" is used in the present application), and a rail frame 100, which are sequentially disposed from above. These frames can be considered as essential frames. Figure 2 As can be seen from FIG. 1, the cutting machine can include a cutting frame 300, an intermediate frame 200 (any one of various frame names such as a main frame can be used, and "intermediate frame" is used in the present application), and a rail frame 100, which are sequentially disposed from above. These frames can be considered as essential frames.

[0041] Specifically, in the cutting machine according to the present application, a cutting shaft 311 can be located at a front end portion of the cutting frame 300, and the cutting blade 310 can be fitted to the cutting shaft 311. The cutting blade 310 can be fitted to each side of the cutting shaft 300, or the cutting blade 310 can be fitted to only one side (left or right) of the cutting shaft. The cutting blade 310 is rotatable, and can have a gear shape or a circular shape.

[0042] The intermediate frame 200 can be located below the cutting frame 300, and the intermediate frame 200 can support the cutting frame 300. As shown in FIG. 2, the intermediate frame 200 is inclined, as will be described below. Figure 2 The intermediate frame 200 can be located below the cutting frame 300, and the intermediate frame 200 can support the cutting frame 300. As shown in FIG. 2, the intermediate frame 200 is inclined, as will be described below.

[0043] The rail frame 100 can be located below the intermediate frame 200, and each side portion of the rail frame 100 can be connected to the rail unit 110. The rail frame 100 is the lowest component of the frame structure, and thus, the rail frame is positioned lower than the cutting frame 300.

[0044] Figure 3 FIG. 4 is a view showing a power motor (for example, a hydraulic motor or an electric motor) installed in the cutting machine according to the embodiment of the present application.

[0045] Figure 3(a) shows a state in which the power motor (described hereinafter as a "hydraulic motor" for ease of description) and the drive wheel are directly connected to each other, and Figure 3 (b) shows the vertical reducer positioned between the hydraulic motor and the drive wheel.

[0046] The track unit 110 may include multiple wheels, with the drive wheel 112 receiving driving force generated by the hydraulic motor 120. For example, when the hydraulic motor 120 rotates once with the drive wheel 112 having a diameter of approximately 15 cm, the drive wheel 112 also rotates once. In this case, the cutting machine moves approximately 50 cm (3.14 x 15 cm).

[0047] However, the cutting machine must move very slowly because it is cutting iron reinforcing bars or concrete. In many cases, the cutting machine must not move more than 20 cm per minute. Therefore, when the hydraulic motor 120 and the drive wheel 112 are directly connected to each other, as described above, the accuracy and safety of the cutting machine may be reduced. Furthermore, the actual hydraulic motor 120 must rotate at least 15 to 20 revolutions per minute to generate meaningful power. When the hydraulic motor and the drive wheel are directly connected to each other, as described above... Figure 3 As shown in (a), problems may arise.

[0048] To solve the above problem, the two hydraulic motors 120 and the two drive wheels 112 are connected to each other via two reducers 130, which will refer to Figure 3 (b) is described.

[0049] Each of the two track units 110 connected to opposite sides of the track frame 100 includes a drive wheel 112, and the drive wheels 112 included in the track units respectively can be referred to as the first drive wheel (left) and the second drive wheel (right). In addition, the reducer connected to the first drive wheel can be referred to as the first reducer, and the reducer connected to the second drive wheel can be referred to as the second reducer.

[0050] As previously described, the reducer can be configured such that the two posts are perpendicular to each other, that is, the two posts are set at right angles (90 degrees) to each other, including the two posts in the first reducer (these two posts will be referred to as the first post and the second post) which are perpendicular to each other, and the two posts in the second reducer (these two posts will be referred to as the third post and the fourth post) which are perpendicular to each other.

[0051] At this point, the first column of the first reducer can be connected to the first drive wheel, and the second column of the first reducer can be connected to the first hydraulic motor. Furthermore, the third column of the second reducer can be connected to the second drive wheel, and the fourth column of the second reducer can be connected to the second hydraulic motor. Therefore, as from...Figure 3 As can be seen in (b) of FIG. 12, one first power wheel, one first speed reducer, and one first hydraulic motor can be located at the left side of the cutting machine, and one second power wheel, one second speed reducer, and one second hydraulic motor can be located at the right side of the cutting machine.

[0052] For reference, the second column and the fourth column are parallel to each other. The reason for this is that the two hydraulic motors 120 are connected to the power wheels 112 in a state of being included in the main unit 400 of the cutting machine. As Figure 3 As shown in (b) of FIG. 12, each of the hydraulic motors 120 is connected to a corresponding one of the power wheels 112 via a corresponding one of the speed reducers 130, each of which is bent at a right angle in a state of being included in the main unit 400.

[0053] Further, since each of the speed reducers 130 is bent at a right angle, the main unit 400 including the hydraulic motors 120 can have a small width. That is, miniaturization of the cutting machine can be achieved. When each of the speed reducers 130 is straight, the width of the main unit 400 can increase by that much.

[0054] That is, in the cutting machine according to the present application, the hydraulic motors 120 and the first and second power wheels 112 can be connected to each other via the speed reducers 130, respectively, and control can be performed by controlling the speed reducers such that the cutting machine can slowly move in a straight line direction when the hydraulic motors 120 are driven at a high speed (or are driven at a high output) for ground cutting. For example, when the speed reducers 130 are set to have a speed reduction ratio of 30:1, even if the power motor 120 rotates 30 times, the power wheel 112 rotates one time, and thus the movement of the cutting machine can be precisely controlled. Under the control of the direction adjusting unit 210 according to the present application, the cutting shaft 311 rotates to set a cutting line, which will be described below. When the cutting shaft 311 is rotated by the direction adjusting unit 210 to set a cutting line and then cutting is performed, power from the hydraulic motor 120 can be reduced by the speed reducer 130, whereby the cutting machine can perform cutting while slowly moving along the set cutting line with higher accuracy. Thus, when the speed reducers 130 are further provided, cutting performance can be further improved.

[0055] Furthermore, when the cutting machine is cutting the ground on a ramp, the reducer 130 can be used to easily perform ground cutting on the ramp. Since each hydraulic motor in the hydraulic motors 120 lacks a braking function, there is a problem where the ground cutting machine can move downhill along the ramp even when the hydraulic motors 120 are not operating. However, when the reducer 130 is installed, the cutting machine can be controlled (wirelessly), thereby allowing for easy operation on ramps and precise control of the ground cutting.

[0056] Next, we will refer to Figure 4 To describe the structure of the track unit 110.

[0057] Figure 4 This is a view illustrating the structure of a track unit according to an embodiment of the present invention.

[0058] The track unit 110 may include a plurality of auxiliary wheels 113, a gear-shaped drive wheel 112, and a guide rail 111 configured to surround these wheels.

[0059] Reference Figure 4 In (a), the drive wheel 112 is typically located at the rear of the track unit 110 and is configured to have a gear shape. Since the drive wheel 112 is connected to the hydraulic motor 120 via a reducer 130, the drive wheel can use the force received from the hydraulic motor 120 to move the cutting machine, as previously described.

[0060] At this point, the multiple protrusions arranged along the circumference of the gear-shaped drive wheel 112 can be referred to as serrated protrusions, and the multiple cavities arranged along the circumference of the gear-shaped drive wheel can be referred to as serrated recesses. The drive wheel 112 can be rotated by the force received from the hydraulic motor 120, thereby allowing the guide rail 111 to rotate and move the cutting machine.

[0061] Specifically, a plurality of recesses 114 are arranged in a row in the guide rail 111. Each of the plurality of recesses can engage with a corresponding serrated protrusion of the drive wheel 112. Thus, when the drive wheel 112 rotates, the serrated protrusions are inserted one after another into the plurality of recesses 114 to rotate the guide rail 111.

[0062] The auxiliary wheel 113 can be circular, or any other shape, depending on the situation. Multiple auxiliary wheels 113 can be provided, and all of the multiple auxiliary wheels 113 are included in the guide rail 111. (As shown from...) Figure 4 As can be seen from (a), the wheel protector 116, configured to protect the outer surface of the plurality of auxiliary wheels 113, can be attached to the upper end of the track unit 110.

[0063] Reference Figure 4(b) and (c), a plurality of protrusions 115 are arranged in the guide rail 111 in the same manner as the plurality of recesses 114. The protrusions 115 protrude inward from the guide rail 111, and each of the protrusions can have any of various shapes, such as a triangular or quadrangular shape.

[0064] As can be seen from the drawing, the plurality of protrusions 115 can be located in a space between the power wheel 112 and the auxiliary wheel 113, and can respectively come into contact with the pillar portions of the auxiliary wheel 113 when the guide rail 111 actually rotates.

[0065] In an embodiment, a separate recess can be provided in the pillar portion of each of the auxiliary wheels 113, and the plurality of protrusions 115 can be inserted one by one into the separate recesses. For reference, the recesses 114 and the protrusions 115 are provided at the inner surface of the guide rail 111, the recesses 114 are arranged in a row at a position close to the inner side of the cutting machine, and the protrusions 115 are arranged in a row at a position close to the outer side of the cutting machine.

[0066] Meanwhile, the cutting machine can further include a manipulation unit, and the manipulation unit can manipulate the upward and downward movement of the cutting frame 300.

[0067] When an upward movement command for the cutting frame 300 is input through the manipulation unit, the front end portion of the cutting frame 300, including the cutting blade 310, can move upward.

[0068] Specifically, only the front end portion of the cutting frame 300 can move upward, and the rear end portion of the cutting frame 300 can be attached and fixed to the cutting machine. That is, only the front end portion of the cutting frame can move upward and downward, and the cutting blade 310 can also move upward and downward with the front end portion of the cutting frame.

[0069] The frame structure of the cutting machine will be described in greater detail below.

[0070] As Figure 2 As shown in the above-described embodiment, in the cutting machine, the cutting frame 300, the intermediate frame 200, and the rail frame 100 can be sequentially provided from above. At this time, the front end portion of the intermediate frame 200 can be positioned lower than the rear end portion of the intermediate frame, whereby the intermediate frame 200 can be inclined at a first predetermined angle.

[0071] That is, as Figure 2As illustrated in the middle, the long column 101 can support the rear end portion of the middle frame 200, and the short column 102 can support the front end portion of the middle frame 200, whereby the front end portion of the middle frame 200 can be inclined downward. For reference, the angle at which the middle frame 200 is inclined downward based on a horizontal ground can correspond to a first predetermined angle.

[0072] Next, the direction adjusting unit 210 can be provided between the rear end portion of the cutting frame 300 and the rear end portion of the middle frame 200. The direction adjusting unit 210 can be configured to rotate the cutting frame 300 or the cutting shaft 311 in a predetermined direction and at a predetermined angle. To this end, the direction adjusting unit 210 can include an upper plate 211 (the upper plate can also be referred to as an upper adjusting plate). In the present invention, the upper plate is referred to as the upper adjusting plate because the upper plate is provided for direction adjustment, and the direction adjusting unit 210 includes a lower plate 212 (the lower plate can also be referred to as a lower adjusting plate). In the present invention, the lower plate is referred to as the lower adjusting plate because the lower plate is provided for direction adjustment, and can adjust the direction of the cutting shaft 311, as will be described below.

[0073] During cutting, the cutting frame 300 can have an angle of inclination downward corresponding to a second predetermined angle based on a horizontal ground, due to the height of the direction adjusting unit 210. For reference, the second predetermined angle can be greater than the first predetermined angle.

[0074] Figure 5 FIG. 1 is a view illustrating a frame structure according to an embodiment of the present invention.

[0075] Specifically, Figure 5 (a) of FIG. 1 illustrates a cutting machine when viewed from above, Figure 5 (b) of FIG. 1 illustrates a structure of a cutting frame and a direction adjusting unit according to an embodiment of the present invention when viewed from the side, and Figure 5 (c) of FIG. 1 illustrates a structure of a cutting frame and a direction adjusting unit according to another embodiment of the present invention different from Figure 5 (b) of FIG. 1 when viewed from the side.

[0076] As can be seen from the drawing, the direction adjusting unit 210 includes the upper adjusting plate 211 and the lower adjusting plate 212, the fixed fastening portions 214 (for example, fixed bolts. Hereinafter, for convenience of description, “fixed bolts” will be used) are respectively inserted into opposite side surfaces (for example, left and right side surfaces) of each of the upper adjusting plate 211 and the lower adjusting plate 212, and the central fastening portion 213 (for example, a central bolt) is inserted into and fixed to the middle of the upper adjusting plate 211 and the lower adjusting plate 212. For reference, the central bolt 213 can also be inserted into the middle frame 200 for fixation. The central fastening portion 213 can be configured to function as a rotation shaft.

[0077] In addition, the lower adjusting plate 212 is fixed to the rear of the middle frame 200, and the upper adjusting plate 211 is fixed to the rear of the cutting frame 300. As a reference, the link portions 301 are provided at opposite sides of the rear end portion of the cutting frame 300, and the link portions 301 can support the upward-downward rotational movement (or vertical movement) of the cutting frame 300. That is, the end portion of the cutting frame 300 can be rotated upward and downward (or moved in the vertical direction) about the link portions 301. Here, the plurality of link portions 301 can be supported by the upper adjusting plate 211, and can be fixed to the upper adjusting plate 211 on the upper adjusting plate.

[0078] Each of the insertion holes 215 into which the fixing bolts 214 are respectively inserted, which are formed in the opposite sides of the upper adjusting plate 211, is constituted by a space extending a predetermined length in the longitudinal direction (front-rear direction). In contrast, the insertion holes (not shown) of the lower adjusting plate 212 into which the fixing bolts 214 are respectively inserted have the same size as the fixing bolts 214.

[0079] When it is necessary to rotate the cutting shaft 311 by a predetermined angle at the time of cutting, the upper adjusting plate 211 can be rotated by a predetermined angle, and then the fixing bolts 214 are fixed. In the state in which the fixing bolts 214 are fixed, the lower adjusting plate 212 is also fixed, but the upper adjusting plate 211 can be moved in the forward and rearward directions along the insertion holes 215 about the fixing bolts, whereby the direction of the upper adjusting plate 211 can be adjusted. The adjustment of the direction of the upper adjusting plate 211 will be described below with reference to Figure 6

[0080] The direction adjusting fastening portions 217 (for example, adjusting screws; hereinafter, for convenience of description, "adjusting screws" will be used) are connected to the opposite sides of the rear portion of the direction adjusting unit 210 (for example, the opposite sides of the rear portion of the upper adjusting plate 211), and thus the movement of the upper adjusting plate 211 can be controlled by rotating the adjusting screws. For example, when the cutting shaft 311 is located at the right side of the cutting frame 300 or the right side of the front portion of the cutting frame, one of the direction adjusting fastening portions 217 located at the opposite sides of the rear portion of the upper adjusting plate 211, for example, the right adjusting screw, can be adjusted so that the right side of the upper adjusting plate 211 cannot be moved rearward, and the left adjusting screw can be loosened to move the upper adjusting plate 211 so that the cutting shaft 311 can be moved to the left. When cutting is started after the direction adjustment, the left adjusting screw can also be adjusted to be in contact with the left side surface of the upper adjusting plate 211. Thus, the direction adjusting unit 210 can be fixed, whereby it is possible to prevent arbitrary changes in the direction during cutting.

[0081] Figure 5 ​​(b) In this configuration, an adjusting screw 217 and an adjusting rod 216 are provided on each of the opposite sides of the rear portion of the direction adjustment unit 210, with the adjusting screw 217 mounted on the adjusting rod 216. The end of the adjusting screw can contact the upper adjusting plate 211. That is, two adjusting screws 217 are provided on opposite sides of the rear portion of the direction adjustment unit 210, and each of the two adjusting screws 217 can be rotated clockwise or counterclockwise to control the movement of the upper adjusting plate 211. For example, when the right adjusting screw 217 is rotated clockwise to its end and then contacts the upper adjusting plate 211, the right side surface of the upper adjusting plate 211 cannot move in the rearward direction due to the right adjusting screw 217.

[0082] Figure 5 (c) shows an adjusting screw 217 according to another embodiment, wherein the adjusting screw 217 is fitted onto an extension of the upper adjusting plate 211. That is, as shown from Figure 5 As can be observed in (c), the rear ends of each of the upper adjusting plate 211 and the lower adjusting plate 212 are bent vertically, and the end of the adjusting screw 217 mounted on the upper adjusting plate 211 can contact the rear end of the lower adjusting plate 212.

[0083] At this time, the adjusting screw 217 can be rotated clockwise or counterclockwise to control the movement of the upper adjusting plate 211. For example, when the right adjusting screw 217 is rotated clockwise to its end and then contacts the rear end of the lower adjusting plate 212, the right side surface of the upper adjusting plate 211 cannot move in the forward direction.

[0084] exist Figure 5 In embodiment (c), the adjusting screw 217 is located on the lower side, which is advantageous for space utilization. This is because many components are mounted on the upper side, such as the cutting frame 300, and therefore, the structure could become complex if the adjusting screw 217 were located on the upper side.

[0085] Figure 6 This is a view showing the orientation adjustment of the upper adjustment plate according to an embodiment of the present invention.

[0086] An insertion hole 215 may be provided in each of the left and right surfaces of the upper adjustment plate 211 of the cutting machine. In this case, the insertion hole 215 located on the left surface of the upper adjustment plate 211 may be referred to as the first insertion hole, and the insertion hole 215 located on the right surface of the upper adjustment plate may be referred to as the second insertion hole.

[0087] As from Figure 6As can be observed from (a), when the first insertion hole moves backward and the second insertion hole moves forward, the cutting shaft 311 can rotate in a counterclockwise direction, so that the cutting frame 300 can move to the left with respect to the front direction.

[0088] As can be observed from (b), when the first insertion hole moves forward and the second insertion hole moves backward, the cutting shaft 311 can rotate in a clockwise direction, so that the cutting frame 300 can move to the right with respect to the front direction. Figure 6 As can be observed from (b), when the first insertion hole moves forward and the second insertion hole moves backward, the cutting shaft 311 can rotate in a clockwise direction, so that the cutting frame 300 can move to the right with respect to the front direction.

[0089] That is, the opposite insertion holes 215 of the upper adjustment plate 211 move in opposite directions, so that the direction of the (rotation) of the cutting shaft 311 can be adjusted. Since the upper adjustment plate 211 is fixed by the central bolt 213, the opposite insertion holes 215 cannot move in the same direction at the same time.

[0090] Since the fixing bolt 214 is fixed, the insertion holes 215 can move forward and backward around the fixing bolt 214. However, as the upper adjustment plate 211 rotates, the insertion holes 215 not only move linearly but also move to one side (in a diagonal direction). In fact, the movement length of each of the insertion holes 215 is very small (about 1 cm or less), and the rotation angle of the cutting shaft 311 is less than a predetermined angle.

[0091] The rotation direction of the cutting frame 300 can be set based on the position of the (circular) cutting blade 310, and the rotation angle of the cutting frame 320 can be set according to the size (e.g., diameter) of the cutting blade 310. When cutting is performed after the cutting frame 300 is rotated at a set angle and in a set direction and then fixed, control can be performed so that the cutting machine can accurately move along a predetermined cutting line.

[0092] Figure 7 is a view showing the external shape of a cutting machine including an engine unit and an engine oil unit according to an embodiment of the present application.

[0093] As described above, the intermediate frame 200 included in the cutting machine according to the present application is inclined forward at a predetermined angle (a first predetermined angle), and the cutting frame 300 located above the intermediate frame 200 and the direction adjustment unit 210 is inclined forward at a greater predetermined angle (a second predetermined angle) during cutting.

[0094] The engine unit 320 supported by the support bar 321 is mounted on the inclined cutting frame 300, and the engine oil unit 330 can be connected to the engine unit 320 at the rear side of the engine unit 320 in a space below the engine unit 320. For reference, oil is contained in the engine oil unit 330, and the oil is supplied to the engine unit 320 through a hose (not shown). If the oil cannot be supplied, the device can malfunction.

[0095] Hereinafter, a description will be given with reference to Figure 7 The engine unit 320 and the engine oil unit 330 will be described in more detail.

[0096] Figure 7 (a) of FIG. 1 shows the cutting machine in a state in which the intermediate frame 200 is horizontal, and Figure 7 (b) of FIG. 1 shows the cutting machine (the present application) in a state in which the intermediate frame 200 is inclined.

[0097] As can be observed from Figure 7 Although the cutting frame 300 is moved upward by the same height, in Figure 7 (a), the cutting frame 300 and the ground (assuming that the ground is horizontal) form an angle α therebetween, whereas in Figure 7 (b), the cutting frame 300 and the ground form an angle β therebetween. For reference, α can have a greater value than β.

[0098] Accordingly, the angle between the engine unit 320 and the engine oil unit 330 located at the upper end of the cutting frame 300 and the ground can also be different from each other, and the oil contained in the engine oil unit 330 can exist at different positions in the engine oil unit 330.

[0099] Even though the same oil is contained, the positions in which the oil exists in the engine oil units 330 of Figure 7 (a) and (b) can be different from each other. Specifically, in Figure 7 (a), in which the angle α of the cutting frame 300 is greater, the distance a between the engine unit 320 and the oil in the engine oil unit 330 is longer, whereby it can be more difficult to supply the oil to the engine unit 320 through the hose. That is, the probability of malfunction of the engine unit 320 can be higher.

[0100] In contrast, in Figure 7 (b), in which the angle β of the cutting frame 300 is smaller, the distance b between the engine unit 320 and the oil in the engine oil unit 330 is shorter, and thus it can be easier to supply the oil to the engine unit 320 through the hose. That is, the probability of malfunction of the engine unit 320 can be lower, thereby further ensuring safety.

[0101] Of course, when the amount of oil in the engine oil unit 330 is sufficient, the possibility that oil supply to the engine unit 320 becomes difficult is low, and thus the possibility that the engine unit 320 malfunctions is also low. However, in the case of an insufficient amount of oil, the safety of the cutting machine is more ensured when the intermediate frame and the cutting frame are inclined (b) than when the intermediate frame and the cutting frame are parallel to each other (a). That is, although the cutting frame 300 rises by the same length upward from the ground, the cutting machine of (b) has a lower possibility of malfunctioning. Figure 7 Figure 7 Figure 8

[0102] In an embodiment, a measurement sensor (not shown) can be installed in the engine oil unit 330, and when the oil is lower than a predetermined height, upward rotation movement of the cutting frame 300 can be prevented. Here, the predetermined height can correspond to a distance up to which the hose can be extended to the engine unit 320.

[0103] Although not shown in ​ , an up-and-down movement adjustment unit configured to move the cutting frame 300 upward and downward can be a hydraulic cylinder. The hydraulic cylinder can be fixed to one side of a lower portion of the cutting frame 300 by coupling, and can be coupled to a pin installed to be connected to a predetermined frame provided in the form of a draw hook connected to the intermediate frame 200.

[0104] The hydraulic cylinder can be configured to have a structure capable of supporting the cutting frame 300 to move upward or downward while the pin and the draw hook form a predetermined angle in a direction opposite to a direction in which the upper adjustment plate 211 rotates when the upper adjustment plate 211 rotates rightward or leftward.

[0105] The predetermined angle between the pin and the draw hook in contact with each other can be increased in proportion to a rotation angle of the upper adjustment plate 211, and a contact interface between the pin and the draw hook can be curved, so that the up-and-down movement of the cutting frame 300 can be adjusted by the hydraulic cylinder even in the case of cutting frame rotation.

[0106] ​ is a view showing that the movement of the cutting machine is guided based on a signal of a signal generator according to an embodiment of the present application.

[0107] First, it can be assumed that the signal generator 500 is located in front of the cutting machine. Of course, depending on the situation, the signal generator can be located in a position other than the front. Here, the signal generator 500 can have any of various shapes, such as a rod shape or a circular shape, and can be installed on a column or the like.

[0108] ​​​The signal sensor 410 provided at the upper end of the cutting machine can sense a predetermined signal generated by the signal generator 500, and the moving direction of the cutting machine can be set according to the position at which the predetermined signal is generated.

[0109] That is, the signal sensor 410 senses a signal generated by the signal generator 500 and transmits the sensed signal to a controller (not shown), and the controller sets the moving direction of the cutting machine based on the position at which the signal is generated.

[0110] The automatic driving system can be applied to the cutting machine so that the cutting machine can be automatically moved, rather than directly manipulating the movement of the cutting machine. At this time, when the decelerator 130 is installed on the cutting machine, the cutting machine can be more precisely moved.

[0111] For reference, the predetermined signal generated by the signal generator 500 can correspond to a specific frequency included in a specific range, the signal sensor 410 can sense the specific frequency, and the moving direction of the cutting machine can be set based on the position at which the predetermined signal is generated.

[0112] For example, the signal sensor 410 can sense only a specific frequency included in a specific range (100 Hz to 200 Hz), and the signal sensor 410 can not sense other frequencies.

[0113] In the embodiment of the present application, as described above, the cutting line can be changed due to the frictional force with the ground generated by the rotation of the cutting blade of one side of the cutting frame, but the cutting shaft is appropriately rotated under the control of the direction adjusting unit and then cutting is performed, so that cutting can be performed while the cutting line is precisely maintained, and thus the cutting performance can be significantly improved.

[0114] In addition, the cutting machine according to the embodiment of the present application further includes a decelerator, whereby control is performed so that the cutting line can be precisely maintained, and thus the cutting performance can be further improved.

[0115] The above-described embodiments of the cutting machine according to the present application are for illustration only and those skilled in the art will appreciate that other embodiments of the present application readily suggest themselves without departing from the spirit and scope of the present application. Accordingly, the above-described embodiments are set forth only for illustrative purposes and should not be construed as limiting. For example, a single type of component can be implemented in a dispersed state, and dispersed components can be implemented in an integrated state.

[0116] The scope of the present application is defined by the appended claims, rather than by the foregoing description, and all modifications or variations which come within the meaning and range of equivalents of the claims are to be embraced by the scope of the present application.

[0117] Reference numerals

[0118] 100: rail frame 101: long column 102: short column 110: rail unit

[0119] 111: guide rail 112: power wheel 113: auxiliary wheel 114: recess 115: protrusion

[0120] 116: wheel protector 200: middle frame 210: direction adjusting unit

[0121] 211: upper adjusting plate 212: lower adjusting plate 213: central bolt 214: fixing bolt

[0122] 215: insertion hole 216: adjusting lever 217: adjusting screw 300: cutting frame

[0123] 301: connecting portion 310: cutting blade 311: cutting shaft 400: main unit

[0124] 410: signal sensor 500: signal generator

[0125] Industrial applicability

[0126] The cutting machine with an adjustable direction according to the present application, which is a device with improved cutting performance at construction sites, structure demolition sites, etc., is industrially applicable.

Claims

1. A cutting machine, comprising: Cutting the frame; The cutting shaft and the cutting blade are provided. Assuming that the direction of the cutting machine is forward and the opposite direction is backward, the cutting shaft is located at the front of the cutting frame, and the cutting blade is assembled in the cutting shaft. An intermediate frame, located below the cutting frame, is configured to support the cutting frame; And a direction adjustment unit, which is located at the rear of the cutting frame below the cutting frame, the direction adjustment unit is connected to the cutting frame, and the direction adjustment unit is configured to adjust the cutting axis so that the cutting axis can rotate; The direction adjustment unit includes an upper plate, a lower plate, a first direction adjustment and fastening part located on the left side of the rear part of the upper plate, and a second direction adjustment and fastening part located on the right side of the rear part of the upper plate. The fixing fasteners are located on each of the opposite side surfaces of the upper and lower plates, and the central fastener is inserted into each of the upper and lower plates, the central fastener being configured to serve as a rotation axis. The direction adjustment unit uses the first direction adjustment fastening part and the second direction adjustment fastening part to control the movement of the upper plate, thereby controlling the rotation of the cutting shaft; Wherein, the front end of the intermediate frame is positioned lower than the rear end of the intermediate frame, thereby the intermediate frame is tilted at a first predetermined angle; The direction adjustment unit is configured such that: When the cutting axis is located on the right side of the front of the cutting machine, the second direction adjustment fastening part is tightened, preventing the right side surface of the upper plate from moving backward; and The first insertion hole located on the left side surface of the upper plate moves backward, and the second insertion hole located on the right side surface of the upper plate moves forward, thereby causing the cutting axis to rotate counterclockwise. When the cutting axis is located on the left side of the front of the cutting machine, the first direction adjustment fastening part is tightened, preventing the left side surface of the upper plate from moving backward; and The first insertion hole located on the left side surface of the upper plate moves forward, and the second insertion hole located on the right side surface of the upper plate moves backward, thereby causing the cutting axis to rotate clockwise. The fixing and fastening parts of the upper plate are respectively inserted into the insertion holes, and each insertion hole is formed by a space extending a predetermined length in the longitudinal direction. The insertion hole of the upper plate moves forward and backward around the fixing fastening part to control the rotation of the cutting shaft; The fixing and fastening part includes fixing bolts, and Each of the first directional adjustment fastening portion and the second directional adjustment fastening portion includes an adjustment screw, the adjustment screw being mounted on an adjustment rod, the end of the adjustment screw being able to contact the upper plate, the adjustment screw being connected to the opposite side of the rear of the upper plate, and each of the two adjustment screws being able to rotate clockwise or counterclockwise to control the movement of the upper plate; The cutting axis rotates to set the cutting line.

2. The cutting machine according to claim 1, wherein, When the cutting axis is located on the right side of the cutting frame or the right side of the front part of the cutting frame, the right adjusting screw in the direction adjusting fastening part located on the opposite side of the rear part of the upper plate can be adjusted so that the right side of the upper plate cannot move backward, and the left adjusting screw can be loosened to move the upper plate so that the cutting axis can move to the left.

3. The cutting machine according to claim 1, wherein, The direction adjustment unit is configured to correspond to the direction and angle required for rotation based on the position of the cutting axis and the size of the cutting blade.

4. The cutting machine according to claim 1, wherein, An engine unit is mounted on the cutting frame, and an engine oil unit is connected to the engine unit at the rear side of the engine unit in the space below the engine unit.

5. The cutting machine according to claim 1, further comprising: The first power motor is disposed on one side of the cutting machine; A first drive wheel, wherein the first drive wheel is configured to be driven by the first drive motor; And a first reducer, the first reducer being configured to connect the first power motor and the first power wheel to each other between the first power motor and the first power wheel; as well as A second power motor is located on the other side of the cutting machine; The second drive wheel is configured to be driven by the second drive motor; And a second reducer, the second reducer being configured to connect the second power motor and the second power wheel to each other between the second power motor and the second power wheel; wherein, The first reducer and the second reducer are configured to allow the cutting shaft to move forward while maintaining a set direction during cutting.

6. A cutting machine, comprising: Cutting the frame; The cutting shaft and the cutting blade are provided. Assuming that the direction of the cutting machine is forward and the opposite direction is backward, the cutting shaft is located at the front of the cutting frame, and the cutting blade is mounted on the cutting shaft. An intermediate frame, located below the cutting frame, is configured to support the cutting frame; A first track unit and a second track unit, the first track unit being disposed on one side of the cutting machine and the second track unit being disposed on the other side of the cutting machine, the first track unit and the second track unit being configured to move the cutting machine; as well as A track frame is located below the intermediate frame, and opposite side surfaces of the track frame are respectively connected to the track units, wherein... The front end of the intermediate frame is positioned lower than the rear end of the intermediate frame, thereby tilting the intermediate frame at a first predetermined angle. The cutting frame is located above the intermediate frame, and the cutting frame is configured to fix the rear end of the intermediate frame, so that the cutting shaft and the cutting blade can move upward and downward. It also includes a direction adjustment unit, which is located at the rear of the cutting frame below the cutting frame and is connected to the cutting frame. The direction adjustment unit is configured to adjust the cutting axis so that the cutting axis can rotate. The direction adjustment unit includes an upper plate, a lower plate, a first direction adjustment and fastening part located on the left side of the rear part of the upper plate, and a second direction adjustment and fastening part located on the right side of the rear part of the upper plate. The fixing fasteners are located on each of the opposite side surfaces of the upper and lower plates, and the central fastener is inserted into each of the upper and lower plates, the central fastener being configured to serve as a rotation axis. The direction adjustment unit uses the first direction adjustment fastening part and the second direction adjustment fastening part to control the movement of the upper plate, thereby controlling the rotation of the cutting shaft; Wherein, the front end of the intermediate frame is positioned lower than the rear end of the intermediate frame, thereby the intermediate frame is tilted at a first predetermined angle; The direction adjustment unit is configured such that: When the cutting axis is located on the right side of the front of the cutting machine, the second direction adjustment fastening part is tightened, preventing the right side surface of the upper plate from moving backward; and The first insertion hole located on the left side surface of the upper plate moves backward, and the second insertion hole located on the right side surface of the upper plate moves forward, thereby causing the cutting axis to rotate counterclockwise. When the cutting axis is located on the left side of the front of the cutting machine, the first direction adjustment fastening part is tightened, preventing the left side surface of the upper plate from moving backward; and The first insertion hole located on the left side surface of the upper plate moves forward, and the second insertion hole located on the right side surface of the upper plate moves backward, thereby causing the cutting axis to rotate clockwise. The fixing and fastening parts of the upper plate are respectively inserted into the insertion holes, and each insertion hole is formed by a space extending a predetermined length in the longitudinal direction. The insertion hole of the upper plate moves forward and backward around the fixing fastening part to control the rotation of the cutting shaft; The fixing and fastening part includes fixing bolts, and Each of the first directional adjustment fastening portion and the second directional adjustment fastening portion includes an adjustment screw, the adjustment screw being mounted on an adjustment rod, the end of the adjustment screw being able to contact the upper plate, the adjustment screw being connected to the opposite side of the rear of the upper plate, and each of the two adjustment screws being able to rotate clockwise or counterclockwise to control the movement of the upper plate; The cutting axis rotates to set the cutting line.

7. The cutting machine according to claim 6, wherein, When the cutting axis is located on the right side of the cutting frame or the right side of the front part of the cutting frame, the right adjusting screw in the direction adjusting fastening part located on the opposite side of the rear part of the upper plate can be adjusted so that the right side of the upper plate cannot move backward, and the left adjusting screw can be loosened to move the upper plate so that the cutting axis can move to the left.

8. The cutting machine according to claim 6, further comprising: A first power motor and a second power motor, wherein the first power motor is disposed on one side of the cutting machine and the second power motor is disposed on the other side of the cutting machine; as well as A first reducer and a second reducer, wherein the first reducer is configured to connect the first drive wheel, which is located at the first track unit, and the first drive motor to each other between the first drive wheel and the first drive motor; and the second reducer is configured to connect the second drive wheel, which is located at the second track unit, and the second drive motor to each other between the second drive wheel and the second drive motor. The first column of the first reducer is connected to the first drive wheel, and the second column of the first reducer is connected to the first drive motor, with the first column and the second column perpendicular to each other. The third column of the second reducer is connected to the second drive wheel, and the fourth column of the second reducer is connected to the second drive motor, with the third column and the fourth column perpendicular to each other. The second column and the fourth column are parallel to each other.

9. The cutting machine according to claim 6, further comprising: An operating unit configured to control the upward and downward movement of the cutting frame, wherein, When an upward movement command for the cutting frame is input via the control unit, the front part of the cutting frame, including the cutting blade, moves upward.

10. The cutting machine according to claim 6, wherein, The direction adjustment unit is configured to correspond to the direction and angle required for rotation based on the position of the cutting axis and the size of the cutting blade.

11. The cutting machine according to claim 6, further comprising: The engine unit and engine oil unit are mounted on the cutting frame, wherein... With the cutting frame tilted such that the front end of the cutting frame is higher than the rear end of the cutting frame, the engine oil unit is connected to the engine unit at the rear side of the engine unit in the space below the engine unit.

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