KR20220060642A - Excavator having erector - Google Patents

Abstract

The present invention relates to an excavator erector which transports segments prepared outside to the inside of an excavated tunnel through a drivable excavator, and then arranges the segments to correspond to site conditions so that quick and easy construction can be achieved. The excavator erector includes an excavator; a rotating arm; a rotating connection unit; and a segment fixing unit.

Description

Excavator Erector {EXCAVATOR HAVING ERECTOR}

The present invention relates to an excavator erector, characterized in that a segment provided outside is transported into an excavated tunnel through a drivable excavator, and then the segment is arranged in response to the on-site situation to enable quick and easy construction. .

In general, there is a conventional method for excavating tunnels, the American Steel Support Method (ASSM), and the latest methods include the New Austrian Tunneling Method (NATM), the Shield Tunnel method, and the shield method. .

Among them, the ASSM method, which is a conventional method, is a conventional method with low stability as a method of supporting the bedrock that is settling due to the relaxation of the ground by using wood or steel arch supports and concrete linings as the main support.

Next, the NATM method is a method that uses the surrounding rock itself constituting the tunnel as a support and introduces the concept of rock mechanics using shotcrete or rock bolts as an auxiliary support. The NATM method has good adaptability to changes in the ground, It is a construction method with excellent economic feasibility under general conditions as the range of applicable cross-sections is wide.

Next, the shield method pushes TBM (Tunnel Boring Machine) equipment, which has a cross section slightly larger than the external cross section of the tunnel, into the ground, and rotates the cutter head equipped with a number of disk cutters in the front to carry out the excavation and burruk export work. At the same time, in the rear part, a support hole or a double hole (segment) to support the excavation section is constructed, and the tunnel is excavated while repeating these tip excavation and construction of the rear support hole.

In the process of excavating a tunnel through a tunnel boring machine for a hard rock, this shield method reduces the cost of shotcrete, rock bolt or auxiliary method, support work, and double work since the fall of the bedrock is significantly less than that of NATM. It has the advantage of shortening the construction period. Recently, excavation of tunnels and underground spaces has replaced the existing blasting method for the purpose of increasing worker stability, reducing civil complaints due to noise and vibration, and reducing air and utility costs, focusing on TBM in subway, electric power and communication tunnels. The trend of mechanized construction by

However, the TBM equipment has a disadvantage that it has to be excavated while drawing a circular arc because the length of the machine assembly section is long, and it is impossible to excavate at a right angle. The disadvantage was that it took a lot of time for commissioning. For example, a TBM rig for excavation with a diameter of 8 m is approximately 150 m in length and takes 3-4 months to assemble and commission.

In addition, TBM equipment can excavate in the forward direction but cannot reverse in the reverse direction. Therefore, if a tunnel collapse accident occurs during excavation work, it is cumbersome and inconvenient to repair the TBM equipment by digging a tunnel in another place. There was a problem, and it was impossible to re-construct with the TBM equipment between the short sections (eg, 10 to 20 m) that collapsed during excavation due to the characteristics of the long equipment.

In addition, the ground is weak in sedimentary layers such as beaches, rivers, and rivers, so heavy TBM equipment (350~400TON) may not be laid with a batak during excavation.

The present invention was invented to solve the above problems, and by utilizing the driving ability of the excavator, the segment provided outside is transported into the excavated tunnel, and then the segment is moved up and down or left and right through the arm cylinder or the tilt cylinder. The purpose of this is to provide an excavator erector that can be quickly and easily constructed by rotating it by rotating it or rotating it 360° through a ring gear to respond to the on-site situation.

In order to solve the above problems, the present invention provides an excavator including a vehicle body provided to be drivable, and a boom connected to the vehicle body and rotated by a boom cylinder; The end of the boom is hinged to the rear center, and the arm cylinder provided in the excavator is hinged on one upper side, and is rotated in the vertical direction by the arm cylinder based on the hinge shaft coupled to the boom, and horizontally on one side a pivot arm to which the tilt cylinder is coupled; a rotating connecting part including a ring gear connected to the rotating arm through the rod of the tilt cylinder at the front of the rotating arm and tilted in the left and right directions, and a driving motor for forward and reverse rotation of the ring gear; It includes a segment fixing part that is provided to be rotatable 360° forward and reverse along the ring gear from the front of the rotating connection part, and fixes the segment to be constructed along the excavation cross section, and utilizes the driving ability of the excavator to external It is characterized in that the prepared segment is transported into the excavated tunnel, and then the segment is rotated up/down/left/right direction or rotated 360° to allow quick and easy construction by arranging it according to the site situation.

In addition, in the present invention, the segment fixing part is fixed to one side of the ring gear and rotated along the ring gear, and the lifting lock pin provided on one side of the body part and provided perpendicular to the upper surface of the segment is fixed in a surrounding manner. a lock pin fixing part; and a safety cylinder vertically disposed under the body part so that the rod is vertically close to the upper surface of the segment, wherein the body part is rotated by the ring gear while the lock pin fixing part is fixed to the lifting lock pin When the safety cylinder rod continuously pushes the segment, it is characterized in that it secures a binding force to prevent the segment from being separated.

In addition, the present invention provides a first leveling sensor for detecting the inclination of the excavator body, a second leveling sensor for detecting the inclination of the boom, a third leveling sensor for detecting the inclination of the pivot arm, and the rotating connection part a fourth leveling sensor for detecting the inclination of the inclination detecting unit for preventing the excavator from overturning due to the load on the segment; A balance weight that is fixed to the other side of the ring gear and rotated along the ring gear, and compensates for the load that is drawn in the opposite direction to the rotational direction through weight compensation when the ring gear is rotated while the segment is fixed to the segment fixing unit; includes; characterized in that

In addition, the present invention is provided with a press cylinder for forcibly fitting a key segment between a pair of arc-shaped segments constructed in a ring shape along an excavation cross-section, or for releasing a fixed key segment between a pair of arc-shaped segments characterized in that

In addition, the present invention includes a controller to which a control signal for controlling the boom cylinder, the arm cylinder, the tilt cylinder, the driving motor, the safety cylinder and the press cylinder is input; It is characterized in that it comprises a; by receiving the control signal input through the controller, the actuator control unit for operating the boom cylinder, arm cylinder, tilt cylinder, drive motor, safety cylinder and press cylinder according to the received control signal.

In addition, in the present invention, the erector control unit converts the driving command input through the controller into an electric signal, and a proportional control valve block for receiving the electric signal converted by the erector control unit on one side of the excavator body; It is characterized in that the hydraulic block is electrically connected to the proportional control valve block and receives an electric signal from the proportional control valve block to set the input direction of the fluid.

The excavator erector according to the present invention, which is made as described above, can be installed and assembled in the field by using the existing TBM vertical sphere, and the preparation time is significantly shorter than that of TBM equipment, so it is possible to start work quickly, and it is much lighter than TBM equipment. does not affect the ground.

In particular, the present invention can transport and transport segments provided outside the excavated tunnel by actively utilizing the driving ability of the excavator, and appropriately segment segments through boom cylinders, arm cylinders, tilt cylinders, ring gears and drive motors, etc. It can be installed quickly and easily.

In addition, according to the present invention, when the segment is rotated along the ring gear in a state in which the segment is fixed to the body part through the lock pin fixing part, the rod of the safety cylinder improves the binding force while pushing the segment, thereby preventing the segment from being separated. , this can significantly reduce the working time.

In addition, according to the present invention, it is possible to quickly construct the segment by properly arranging the segments while visually checking the work site from the outside of the excavator through a separately provided controller.

In addition, the present invention provides an excavator car body by the inclination sensing unit and the control unit when the boom stands in a state in which the segment is fixed to the segment fixing unit, the rotating arm rotates up and down or left and right, or the segment fixing unit rotates along the ring gear. , boom, rotating arm, and rotating connection part can be prevented from overturning accident due to the load of the segment by immediately stopping the current operation when the inclination exceeds the preset reference value.

In addition, the present invention can maintain work stability during lifting or rotating by offsetting the load that the segment fixing unit is inclined downward through weight compensation through the balance weight, and it is possible to prevent the overturning of the excavator.

In addition, the present invention can quickly and easily perform the operation of forcibly fitting the wedge-shaped key segment through the press cylinder or the operation of separating the fitted key segment.

In addition, the present invention provides a continuity of operation such as when the boom cylinder or arm cylinder starts or stops the operation corresponding to the driving command through the proportional control of the hydraulic pump by the proportional control valve block or when the rotation direction of the driving motor is switched. It is possible to prevent deterioration of the durability of the component due to the impact generated when this is broken.

1a to 1c is a schematic illustration for explaining a shield (Shield) method using the TBM equipment according to the prior art.
2 and 3 are exemplary views of an excavator erector according to the present invention.
Figure 4 is a schematic illustration for explaining a rotating arm according to the present invention.
5 is a schematic illustration for explaining the rotating connection part and the segment fixing part according to the present invention.
6 and 7 are schematic diagrams for explaining the principle that the segment fixing unit is rotated from the rotating connection unit according to an embodiment of the present invention.
8 is a schematic illustration for explaining a control process through a joystick and a controller according to an embodiment of the present invention;

Hereinafter, an excavator erector according to the present invention will be described in more detail with reference to the accompanying drawings.

The TBM (Tunnel Boring Machine) used in the shield method, which is one of the tunnel excavation methods, has to be excavated in a circular arc because the length of the equipment is long. Accordingly, there was a disadvantage in that a large amount of cost was incurred and a long assembly and trial operation period was required.

In addition, it is possible to excavate in the forward direction, but it is impossible to reverse in the reverse direction, so if a tunnel collapse accident occurs during excavation work, there was a cumbersome and inconvenient problem that the TBM equipment had to be dug elsewhere to repair the TBM equipment. had no choice but to

In addition, due to the characteristics of long equipment, it was impossible to reconstruct with the TBM equipment between short sections (for example, 10 to 20 m) that collapsed during excavation. There was also a phenomenon that the equipment (350~400TON) was not laid out with a batak.

The present invention is to solve the various problems described above, by utilizing the driving ability of the excavator along the inside of the excavated tunnel, transporting the segment provided outside into the inside of the excavated tunnel, and then moving the segment through the arm cylinder or tilt cylinder Disclosed is an excavator erector that can be quickly and easily constructed by rotating it up and down or left and right or rotating it 360° through a ring gear to respond to the site situation.

2 and 3 are exemplary views of an excavator erector according to the present invention, FIG. 4 is a schematic exemplary view for explaining a rotating arm according to the present invention, and FIG. 5 is a rotating connection part and a segment fixing part according to the present invention 6 and 7 are schematic diagrams for explaining the principle that the segment fixing unit is rotated from the rotating connection unit according to an embodiment of the present invention.

2 to 7, first, the present invention is provided with an excavator 100.

An excavator refers to a heavy equipment widely used at a construction site or civil engineering site in which the boom and arm that rotate respectively by the boom cylinder and the arm cylinder are sequentially connected from the car body.

In the present invention, the excavator 100 includes a vehicle body 110 in which a cab, an engine room, a hydraulic tank, a motor, etc. are provided and configured to run, and a boom 120 connected to the vehicle body and rotated by a boom cylinder 121 . ), and a pivoting arm 200 according to a preferred embodiment of the present invention is hinged to the end of the boom 120, not a general type of arm.

Meanwhile, in the drawings to help understand the present invention, an excavator having a wheel (wheel) for driving is shown in the lower portion of the vehicle body, but this is only an example to help the understanding of the present invention, and the wheel is a caterpillar track can be replaced with

Next, the pivoting arm 200 hinged to the end of the boom 120 will be described.

The pivoting arm 200 includes a front part 201 having a square or rectangular plate shape, a rear part 202 provided at the rear of the front part and having an approximately ">" shape when viewed from the side, and the front part and a pair of side portions 203 formed on both sides of the rear portion.

The front surface of the front part 201 is hinged with a rotating connection part to be described later, and an end of the boom is hinged to the center of the rear part 202 .

In addition, a fixed shaft connecting the pair of side parts is fixedly coupled to an upper side in a horizontal direction, and the arm cylinder 122 provided in the excavator is hinged to the fixed shaft.

The pivot arm 200 is erected along the boom by the boom cylinder 121 and can be rotated in the vertical direction by the arm cylinder 122 based on the hinge axis of the rear part hinged with the end of the boom.

In addition, a tilt cylinder 210 to which a rod is connected to the rotating connection part is coupled to the side part 203 in a horizontal direction.

Although not shown in the drawings, in general, an excavator has a first hydraulic line for rotating the boom, a second hydraulic line for rotating the arm, a third hydraulic line for rotating the bucket, and rotation (swing) of the excavator body A fourth hydraulic line for , and a fifth hydraulic line for rotation of the attachment mounted on the end of the arm are provided.

Here, the first hydraulic line and the second hydraulic line are respectively connected to a boom provided in the excavator according to the present invention and a pivot arm coupled to an end of the boom, and the third hydraulic line is connected to the tilt cylinder do.

In addition, in the present invention, the tilt cylinder 210 is provided as a pair and provided on each side part 203 , and the third hydraulic line is branched into two lines and connected to each tilt cylinder, one side or the other side of the tilt cylinder. As the rod is drawn out or drawn in while being connected to the rotating connection part, the left and right tilting of the rotating connection part is made.

The rotating connecting part 300 includes a ring gear 310 that is connected through the rod of the tilt cylinder at the front of the pivoting arm 200 and tilts in the left and right directions, and a drive for forward and reverse rotation of the ring gear It includes a motor 320 .

Here, the driving motor 320 is a motor capable of forward and reverse rotation to enable forward and reverse rotation of the ring gear 310, and a segment fixing unit to be described later rotates a heavy segment along the ring gear. It is recommended to use a deceleration motor to prevent the segment from falling or the durability of the drive motor from being deteriorated due to backlash caused by over-rotation. For example, the driving motor may be a hydraulic motor, and may be connected to the fifth hydraulic line and rotate in a forward or reverse direction by hydraulic pressure.

In addition, the sun gear is coupled and fixed to the drive shaft of the drive motor shaft installed in the center of the ring gear, and at least two or more satellite gears are geared between the ring gear and the sun gear to prevent backlash and generate a stronger force by deceleration. Through this, it is possible to enable rotational transfer of the segment. Meanwhile, in the present invention, the fifth hydraulic line is branched into three lines (hereinafter referred to as "first branch line", "second branch line", and "third branch line"), and the first branch line is connected to the driving motor as described above, the second branch line is connected to a safety cylinder to be described later, and the third branch line is connected to a press cylinder to be described later.

Next, as shown in Fig. 1b), a bolt hole (not shown) is usually formed on the upper surface of the segment, and a lifting lock pin 13 is screwed into the bolt hole, and then a lock pin having a shape corresponding to the lifting lock pin 13 is raised. The top portion 420 ′ is hooked to the lifting lock pin and fixed to lift and transport the heavy weight segment.

The segment fixing unit 400 allows the segment to be arranged according to the site situation while rotating 360° forward and reverse along the ring gear in a state where the segment to be constructed along the excavation section is fixed.

To this end, the segment fixing part 400 includes a body part 410 fixed to the ring gear and rotating in forward and reverse directions along the ring gear, provided on one side of the body part, and surrounding the lifting lock pin 13 . It includes a lock pin fixing part 420 fixed with the , and a safety cylinder 430 provided under the body part.

It is preferable that the lock pin fixing part 420 is formed of a material having excellent strength to prevent deformation or damage due to the load of the segment when the segment is lifted while forming a shape surrounding the outer circumferential surface of the lock pin 13 .

The safety cylinder 430 is vertically disposed at the lower portion of the body so that the rod is in close contact with the upper surface of the segment.

A pair of the safety cylinder 430 is preferably provided on both sides with respect to the center of the body portion 410 so that the center of gravity can be maintained without being rotated to one side by a load when the segment is lifted.

Preferably, the safety cylinder 430 is a hydraulic cylinder, is connected to a second branch line branched from the fifth hydraulic line, and is configured so that the rod is drawn out/retracted by hydraulic pressure, and a controller 800 to be described later and this It is controlled wirelessly through the rector control unit 900 so that the operator can control the safety cylinder while checking the work site directly from the outside of the excavator, thereby remarkably improving the ease and speed of work.

In the present invention, when the body part 410 is rotated along the ring gear in a state in which the segment is fixed through the lock pin fixing part 420, the rod of the safety cylinder 430 continuously pushes the segment while securing the binding force. Separation of the segment by weight can be prevented.

Next, the present invention includes an inclination detecting unit 500 and a balance weight 600 for preventing the excavator from overturning due to the load of the segment when the segment is rotated through the segment fixing unit 400 .

The inclination detection unit 500 includes a first leveling sensor 510 for detecting the inclination of the vehicle body 110 , a second leveling sensor 520 for detecting the inclination of the boom 120 , and the pivoting arm ( 200) and a third leveling sensor 530 for detecting the inclination, and a fourth leveling sensor 540 for detecting the inclination of the rotating connection part 300.

The inclination sensing unit 500 transmits the inclination values of the vehicle body, boom, rotating arm, and rotating connection unit detected from the first to fourth leveling sensors 510, 520, 530, and 540 to the excavator control unit 130 provided on one side of the excavator.

The excavator control unit 130 compares the inclination value of the vehicle body, boom, rotating arm, and rotating connection unit transmitted from the inclination sensing unit 500 with a reference value stored in advance, and then executes when the detected inclination value exceeds the reference value By controlling the operation to stop immediately, it prevents overturning accidents of the excavator body due to the load on the segment and damage or deformation of the boom.

The balance weight 600 is disposed opposite the safety cylinder 430 on the other side of the ring gear and rotates along the ring gear. By offsetting the load in the reverse direction, it is possible to maintain stability during the lifting operation, prevent the excavator from overturning, and provide the effect of securing the durability of the boom, rotating arm, rotating connection part, and segment fixing part.

The balance weight 600 may be provided at the rear of the excavator body 110 as necessary.

In addition, in the present invention, a boom auxiliary cylinder 123 for supporting the boom 120 may be provided.

One end of the boom auxiliary cylinder 123 is connected to the vehicle body 110 , and the other end is hinged to the lower portion of the boom.

The boom auxiliary cylinder 123 is configured to be interlocked with the boom cylinder 121, and when the outer peripheral surfaces of both sides of the boom are supported by the boom cylinder 121, the boom auxiliary cylinder 123 is supported from the lower part of the boom to provide a segment load to prevent damage or deterioration of durability.

On the other hand, referring to Figure 1b), a plurality of arc-shaped segments 11 are preferentially constructed in a ring shape in a conventionally excavated tunnel, and then a wedge-shaped key segment between the arc-shaped segment 11 and the arc-shaped segment 11 ( 12) is pressed to complete the ring segment (10).

However, due to the structural characteristics of the conventional TBM equipment, it is possible to excavate in the forward direction but not backward. .

The reason for this is that the TBM equipment must enter again from the reverse direction in order to forcibly disengage the fitted key segment. Since the diameter of the disc cutter for excavation is wider than the diameter of the ring segment, it is impossible for the TBM equipment to enter itself. .

The present invention includes a press cylinder (700) for the operation of force-fitting the key segment or forcibly disengaging the fitted key segment.

The press cylinder 700 is provided on one side of the balance weight and is connected to a third branch line branching from the fifth hydraulic line so that the rod is drawn out/retracted by hydraulic pressure.

The excavator erector according to the present invention moves along the excavation direction or the opposite direction inside the excavated tunnel, and then presses the outer circumferential surface of one side of the key segment 12 through the press cylinder 700 to form a pair of arc-shaped segments 11) An operation of forcibly fitting between them, and an operation of forcibly separating the key segment 12 fitted between the pair of arc-shaped segments 11 by pressing the other outer circumferential surface of the key segment 12 may be performed.

In addition, in the present invention, the press cylinder 700 is controlled wirelessly through the controller 800 and the erector control unit 900, so that the operator can directly check the work site from the outside of the excavator with the naked eye while using the press cylinder 700. By controlling it, it is possible to improve the speed and accuracy of the work.

Next, the present invention provides the boom cylinder 121, the arm cylinder 122, the tilt cylinder 210, the driving motor 320, the safety cylinder 430 and the press cylinder ( a controller 800 for controlling 700; an erector control unit 900 that receives a control signal input through the controller and controls the boom cylinder, arm cylinder, tilt cylinder, drive motor, safety cylinder and press cylinder 800 to operate according to the received control signal; includes

The controller 800 is connected to the erector control unit 900 through wireless communication, and a boom cylinder 121, an arm cylinder 122, a tilt cylinder 210, a driving motor 320, and a safety cylinder 430. , a plurality of operation buttons that can individually control the press cylinder 800, a display screen that can visually check the operating state of each component, etc. may be provided.

The erector control unit 900 receives the control signal transmitted from the controller 800 through wireless communication, converts it into an electrical signal, and then transmits it to the proportional control valve block 150 to be described later, and receives the electrical signal. The proportional control valve block 150 transmits the received electrical signal to the hydraulic block 140 and the hydraulic pump to be described later.

On the other hand, in the present invention, the arm pump (P) control of the excavator is controlled by the joystick 111 or the controller 800 according to the control signal of the boom cylinder 121, the arm cylinder 122, the tilt cylinder 210, and the driving motor 320 ), safety cylinder 430, press cylinder 700, when the operation starts or stops, or when the continuity of operation is interrupted, such as when the rotation direction is changed, the durability of the component is reduced by the impact generated It is preferable to use a proportional control method rather than an on/off control method to prevent it from happening.

The proportional control method is a method in which when a driving command is input from a joystick or a controller, a corresponding control signal is output from the electronic proportional control valve to control the discharge flow rate of the hydraulic pump.

To this end, the present invention converts the driving command input from the joystick 111 or the controller 800 to an electrical signal to control the boom cylinder, arm cylinder, tilt cylinder, drive motor, safety cylinder or press cylinder as shown in FIG. 8 . The hydraulic block 140 for setting the moving direction of the fluid supplied from the hydraulic tank according to the electric signal transmitted from the excavator controller 130, which is converted and transmitted, and the electric signal received from the excavator controller 13 and a proportional control valve block 150 that transmits a flow rate signal to the hydraulic pump to control the discharge flow rate of the hydraulic pump.

Here, the hydraulic block 140 includes a solenoid valve 141 for a boom cylinder that sets the rotation direction of the boom, a solenoid valve 142 for a female cylinder that sets a rotation direction of the rotation arm, and a tilting direction of the tilt cylinder. A solenoid valve 143 for a tilt cylinder that sets a valve 145 .

In addition, the proportional control valve block 150 includes a boom cylinder proportional control valve 151 for controlling the flow rate discharged to the boom cylinder, and an arm cylinder proportional control valve 152 for controlling the flow rate discharged to the arm cylinder. ), a tilt cylinder proportional control valve 153 for controlling the flow rate discharged to the tilt cylinder, and a swing proportional control valve 154 for controlling the flow rate discharged for the swing of the excavator body, and a preliminary line Includes a proportional control valve 155 for a preliminary line for controlling the flow rate discharged to the.

For example, when a drive command for rotating the boom cylinder 121 is input through the joystick 111, the excavator control unit 130 converts the drive command into an electrical signal to convert the solenoid valve 141 for the boom cylinder and It is sent to the hydraulic pump (P), and the hydraulic pump (P) discharges a corresponding flow rate in a path set according to the received electrical signal.

In addition, when a drive command for operating the press cylinder 700 is input through the controller 800 , the erector control unit 900 converts it into an electric signal and then transmits it to the proportional control valve 155 for the spare line. do.

The electric signal received by the proportional control valve 155 for the spare line is transmitted to the excavator control unit 130 and the hydraulic pump P, respectively, and the excavator control unit 130 receives the solenoid valve for the spare line according to the received electric signal. Control 145 to allow fluid to be drawn in/out to one side or the other side, and the flow rate corresponding to the drive command is branched from the fifth hydraulic line while the rotation speed of the engine driving the hydraulic pump P is controlled. discharged into the line.

The excavator erector according to the present invention, which is made as described above, transports and transfers the segment provided outside to the inside of the excavated tunnel by utilizing the driving ability of the vehicle body, and then moves the segment fixing part up and down or left and right through the arm cylinder or the tilt cylinder. It can be rotated or rotated 360° through a ring gear to arrange the segments in response to the on-site situation and can be constructed quickly and easily. There is a remarkable effect that can prevent the problem that the durability is lowered by the impact generated when the continuity of the operation is cut off.

10: ring segment
11: arc segment 12: key segment
13: lifting lock pin
100 : excavator
110: body 111: joystick
120: boom
121: boom cylinder
122: female cylinder
123: boom auxiliary cylinder
130: excavator control unit
140: hydraulic block
150: proportional control valve block
200: Hoedongam
201: front 202: rear
203: side part
210: tilt cylinder
300: rotating connection part
310: ring gear 320: drive motor
400: segment fixing part
410: body part 420: lock pin fixing part
430: safety cylinder
500: first leveling sensor
510: second leveling sensor
520: third leveling sensor
530: fourth leveling sensor
600: balance weight
700: press cylinder
800 : controller
900: Erector control unit

Claims (6)

an excavator 100 including a vehicle body provided to be drivable, and a boom connected to the body and rotated by a boom cylinder;
The end of the boom is hinged to the rear center, and the arm cylinder provided in the excavator is hinged on one side of the upper side, and is rotated in the vertical direction by the arm cylinder based on the hinge shaft coupled to the boom, and horizontally on one side of the side a pivoting arm 200 to which the tilt cylinder is coupled;
A rotating connecting portion 300 including a ring gear tilted in the left and right directions connected to the rotating arm through the rod of the tilt cylinder at the front of the rotating arm, and a driving motor for forward and reverse rotation of the ring gear and ;
It is provided to be rotated 360° forward and reverse along the ring gear from the front of the rotating connection part, and a segment fixing part 400 for fixing the segment to be constructed along the excavation section; includes;
To enable quick and easy construction by utilizing the excavator's driving ability to transport and transport the segments provided outside to the inside of the excavated tunnel, and then rotate the segments up/down/left/right or 360° to fit the site situation. Excavator erector, characterized in that.
According to claim 1, wherein the segment fixing portion is fixed in a shape surrounding the body portion fixed to one side of the ring gear and rotated along the ring gear, and a lifting lock pin provided on one side of the body portion and provided perpendicular to the upper surface of the segment. a lock pin fixing part that is formed by a lock pin, and a safety cylinder vertically disposed under the body part so that the rod is vertically in close contact with the upper surface of the segment;
When the body part is rotated by the ring gear while the lock pin fixing part is fixed to the lifting lock pin, the rod of the safety cylinder continuously pushes the segment while securing a binding force to prevent the segment from being separated. excavator erector.
3. The method of claim 2,
A first leveling sensor for detecting the inclination of the excavator car body, a second leveling sensor for detecting the inclination of the boom, a third leveling sensor for detecting the inclination of the rotating arm, and the rotating connection part to detect the inclination It includes a fourth leveling sensor, and an inclination detection unit for preventing the excavator from overturning due to the load on the segment;
a balance weight fixed to the other side of the ring gear and rotated along the ring gear, the balance weight offsetting the load drawn in the reverse direction through weight compensation when the ring gear is rotated while the segment is fixed to the segment fixing unit;
Excavator erector comprising a.
The press cylinder according to claim 2, wherein a press cylinder is provided for forcibly fitting the key segment between a pair of arc-shaped segments constructed in a ring shape along the excavation cross-section or for releasing the fixed key segment between the pair of arc-shaped segments. Excavator erector, characterized in that it becomes.
5. The method according to any one of claims 1 to 4,
a controller to which a control signal for controlling the boom cylinder, the arm cylinder, the tilt cylinder, the driving motor, the safety cylinder and the press cylinder is input;
an erector control unit that receives a control signal input through the controller and then operates the boom cylinder, arm cylinder, tilt cylinder, drive motor, safety cylinder and press cylinder according to the received control signal;
Excavator erector comprising a.
6. The method of claim 5,
The erector control unit converts the driving command input through the controller into an electric signal,
At one side of the excavator body, a proportional control valve block for receiving the electrical signal converted by the actuator control unit, and electrically connected to the proportional control valve block, receive an electrical signal from the proportional control valve block to determine the input direction of the fluid Excavator erector, characterized in that provided with a hydraulic block to set.

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