KR101853430B1

KR101853430B1 - vibration ripper and tunnel excavation methon of the same

Info

Publication number: KR101853430B1
Application number: KR1020160118211A
Authority: KR
Inventors: 박정열
Original assignee: (주)대동이엔지
Priority date: 2016-09-13
Filing date: 2016-09-13
Publication date: 2018-06-20
Also published as: KR20160114009A; WO2018052246A1

Abstract

A vibratory ripper and tunnel excavation method according to the present invention is disclosed. A vibration ripper capable of rectilinear motion comprises a main body part, a coupling bracket rotatably installed on the main body part for engaging with a boom of an excavator, a vibrating body coupled to the main body part and the vibrating body support unit to vibrate, And a ripper blade provided on the vibrating body, wherein a buffering unit is provided on the vibrating body, and a vibrating body and a ripple blade installed on the vibrating body are sandwiched between the buffering unit and the main body, And a forward / backward unit for backward movement.

Description

[0001] The present invention relates to a vibration ripper and a tunnel excavation method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration ripper, and more particularly, to a vibration ripper that can advance and retract a ripple blade of a vibration ripper to crush an arm, rotate and tilt the vibration ripper with respect to the boom, And a tunnel excavation method using the same.

Usually, in order to crush the rock in the construction site, a breaker iron core is mounted on the arm of the heavy equipment and the rock is hit and crushed. However, in the conventional breaker striking method, since the noise pollution is largely generated, a heavy equipment with low noise and high efficiency is required. In addition, in the case of terrain consisting of only rocks, it is necessary to break the rock by using a breaker. However, in the case of rocky rock, when the breaker is used, not only the rock is broken but the hole is drilled. It is necessary to equip a digging type which can sell it and to crush and crush the ground while vibrating up and down like a breaker.

Korean Patent Registration No. 10-0755017 discloses "Vibrator Ripper for Heavy Duty ", and Published Patent Publication No. 10-2009-0054513 and Vibration Ripper of No. 10-0878296 are published.

The present invention has proposed a vibration ripper of Korean Patent Registration Nos. 0278296 and 096665.

Conventional vibration rippers as described above have a problem that the working range can not be widened because the vibration range of the ripper blade is limited, and vibration is transmitted to the boom when the rocker breaks relatively. In addition, since it does not have a structure capable of tilting and rotating in both directions other than the forward and backward directions, it can not be operated at various angles and is restricted in a narrow space such as a tunnel or the like, .

In addition, there is a problem that vibrations generated in the crushing and excavation of the ripper blade of the vibration ripper are transmitted to the excavator supporting the vibration, thereby damaging the equipment.

Korean Patent Registration No. 10-0755017 Korea Patent Publication No. 10-2009-0054513 Korean Patent No. 10-0878296 Korea Patent No. 0278296, No. 096665

It is an object of the present invention to provide a vibration ripper that can be moved forward and backward with respect to a boom of an excavator that supports a vibration ripper and to tilt and rotate the vibration ripper in the left and right direction, The present invention provides a vibration ripper and a tunnel excavation method that can improve workability and prevent vibrations generated during rock crushing and excavating operations from being transmitted to a ripper main body and a boom supporting the ripper main body.

It is another object of the present invention to provide a vibration ripper and a tunnel excavation method which can improve the supporting force of the main body when the arm is crushed by the ripper blade to increase the crushing force.

According to an aspect of the present invention, there is provided a vibratory ripper for rectilinear motion, the vibratory ripper including a body, a coupling bracket rotatably mounted on the body and adapted to engage with a boom of an excavator, A vibration generating unit provided in the vibrating body, and a ripper blade provided in the vibrating body, wherein the vibrating body is provided with a cushioning unit, and between the cushioning unit and the main body, And a forward / backward unit for moving forward / backward the forward / backward of the vibrator and the ripper blade installed in the oscillator.

In the present invention, the cushioning portion is formed of one selected from an elastic member, a shock-shock absorber, an air shock absorber, and a spring, provided between the vibrating body and the main body portion, And a hydraulic circuit part for driving the elevating actuator in association with the vibration generating unit provided on the vibrating body.

The tilting actuator further includes a tilting actuator coupled to the main body by a main hinge shaft so as to be rotatable in left and right directions, and both ends of the main body and the coupling bracket are provided. A support member extending parallel to the ripper blade and relatively shorter than the length of the ripper blade is provided.

Meanwhile, a rotating unit for rotating the main body with respect to the engaging bracket is further provided between the main body and the engaging bracket. The rotation unit includes a rotation shaft that rotatably couples the engagement bracket to the body portion, a ring gear installed on the rotation shaft, and a ring gear installed on the body portion or the engagement bracket, And a driving gear that is driven by the driving force.

On the other hand, the hydraulic circuit portion for driving the elevating actuator of the forward / backward unit includes a first hydraulic oil supply pipe and a first hydraulic oil return pipe connected to both ports of a hydraulic cylinder which is an elevating actuator and a second hydraulic oil return pipe connected to the first hydraulic oil supply pipe, A hydraulic motor of a vibration generating unit driven by being connected to the first hydraulic oil supply pipe, and a hydraulic motor provided in the first hydraulic pressure supply pipe and the first hydraulic return pipe so that when the hydraulic motor is driven, And a controller valve for selectively reversing the cylinder.

According to an aspect of the present invention, there is provided a tunnel excavation method using a rectilinear vibratory ripper, the tunnel excavation method including a main body, a coupling bracket rotatably installed on the main body and engaging with a boom of the excavator, A vibrating body coupled to the body supporting unit, a vibration generating unit provided in the vibrating body, and a ripper blade installed in the vibrating body, wherein the vibrating body is provided with a cushioning unit, and between the cushioning unit and the body A vibration ripper mounting step of mounting a vibration ripper, which is capable of rectilinear motion, on a boom of an excavator, the vibration ripper being provided with forward and backward units for moving forward and backward the forward and backward reamer blades installed on the oscillator and the oscillator, Wow,

A vibration ripper pressing step of pressing the support member of the vibration ripper mounted on the boom of the excavator so as to be in close contact with the rock crushing site of the tunnel,

A crushing step of crushing and vibrating the vibrating body provided with a ripper blade installed parallel to the support member,

And advancing the buffering unit by using the lifting actuator of the forward / backward unit to advance the refurbishing to increase the crushing force.

The vibration ripper and the tunnel excavation method of the present invention can tilt and rotate the main body of the vibration ripper in the left and right direction and can move the ripper blade forward and backward in a state where the main body portion is tilted and rotated in the left or right direction Therefore, the workability can be improved in a narrow space, and the working efficiency in a narrow space such as a tunnel can be improved.

1 is a perspective view showing an embodiment of a rectilinear vibration ripper according to the present invention,
Fig. 2 is a side view of the advancing vibration ripper shown in Fig. 1,
3 is a view showing a hydraulic circuit portion of a forward / backward unit of the present invention,
4 shows another embodiment of the forward / backward unit hydraulic circuit portion of the present invention,
5 and 6 are side views showing another embodiment of a rectilinear vibratory ripper according to the present invention,
7 is a partially cutaway side view showing another embodiment of a rectilinear vibratory ripper according to the present invention,
FIG. 8 is a perspective view showing a state in which a vibration ripper capable of being linearly moved according to the present invention is mounted on an excavator and is tilted,
9 is a side view showing a state in which a rectilinear vibratory ripper according to the present invention is rotated by a rotation unit.

Embodiments of a rectilinear vibratory ripper according to the present invention are shown in Figs.

Referring to the drawings, a rectilinear vibration ripper 10 according to the present invention includes a vibrating body 20, a body 30 for supporting the vibrating body 20, A vibrating body supporting unit 40 for supporting the vibrating body 20 so that the vibrating body 20 vibrates and a ripper blade 50 provided on the lower side of the vibrating body 20. A buffer unit (70) is provided between the upper side of the vibrating body and the corresponding body part (30) to prevent vibrations of the vibrating body from being transmitted to the body part by vibrating the vibrating body The vibrator 20 can be moved back and forth between the cushioning unit 70 provided in the cushioning unit 70 and the main body 30 to advance and retract the ripper blade 50 provided on the vibrating body, And a forward / backward unit (80) capable of controlling an elastic deformation force applied to the oscillator (20) by the oscillating unit (70). On the other hand, a support member 90, which is shorter than the length of the ripper blade, is provided on the main body 30 on both sides of the ripper blade 50 in a direction parallel to the ripper blade 50.

6, the upper part of the main body part 20 is coupled with the coupling bracket 11 coupled to the boom 110 of the excavator and the main body part so as to rotate in the left and right directions, A tilting unit 60 for tilting the main body 30 with respect to the coupling bracket 11 may be provided between the main body 11 and the main body 20. 6, a rotating unit 300 for rotating the main body 30 relative to the engaging bracket 11 is further provided between the engaging bracket 11 and the main body 30. As shown in FIG.

The above-described rectilinear vibratory ripper configured as described above will be described in more detail by the constituent elements as follows.

The main body portion 30 constituting the frame of the rectilinear motion vibration ripper 10 may have the vibration space portion 31 of the vibrating body 20. The main body 30 may include first and second support frames 33 and 34 extending to both sides of the upper support frame 32 to form the vibration space 31. The main body portion 30 may not necessarily be formed with the divided vibration space portion 31. The main body 30 is not limited to the above-described embodiment, but may be a structure capable of vibrably supporting the vibrating body 20 by the vibration supporting unit 40. [

The vibrating body 20 may further include a vibration generating unit that is supported by the vibration supporting unit 40 with respect to the main body 30 to vibrate at a predetermined amplitude.

In the vibration generating unit, two drive shafts, to which eccentric weight is attached, are provided in parallel to each other in the housing, and gears that are mutually engaged with each other are provided. The eccentric weight provided on the drive shaft is installed so as to be in the same direction with respect to the rotation axis so as to maximize the vibration in the vertical direction. The housing is provided with an actuator for driving at least one of the two drive shafts. Such a configuration is disclosed in Patent Registration No. 0878296 filed and registered by the present invention.

The vibrating body supporting unit 40 can support the vibrating body 20 to vibrate with respect to the main body 30 and is disclosed in Korean Patent No. 1551485 filed and filed by the present inventor . The vibrating body support unit 40 that has been posted is provided with at least one rotating member on the vibrating body 20 and one end of the oscillating body supporting unit 40 is rotatable on the upper and lower sides of the rotating center of the rotating member so as to be offset from the rotating center of the rotating member And the first and second connecting members are rotatably installed at the other end of the main body portion. The first and second connection members may be formed of a link member and may be supported by pins provided on the first and second support frames. The rotary member may be installed in a direction perpendicular to the vibration direction of the vibrating body 20 and may be installed on the vertical axis on the upper and lower sides of the body 30. [ Both ends of the rotating member may protrude from both sides of the vibrating body 20 or the ripper blade 50 and may be supported by the vibrating body 20 so that normal and reverse rotation can be smoothly performed.

The vibrating body supporting unit is not limited to the above-described embodiment, but may be a structure capable of supporting the vibrating body 20 vibrating by the vibration generating unit in a vibratable manner with respect to the body portion 30. [ And may be composed of two links as shown in FIG.

Between the upper portion of the vibrating body 20 and the corresponding body portion 30, vibration generated by vibrating the vibrating body is prevented from being transmitted to the body portion 30, A buffer unit 70 for pressing the vibrating body 20 is provided.

The buffer unit 70 is installed between the upper surface of the vibrating body 20 and the main body 30. The buffer unit 70 may be made of one selected from an elastic member made of a rubber material, a shock absorber, and a spring. The buffer unit 70 may be a dustproof support unit developed by the present inventor and filed in Korean Patent Application No. 2016-0040422. The dustproof support unit includes a first housing having a first inner space and an open bottom, a second housing inserted in the first housing and having a diameter smaller than the diameter of the first housing and opened at the bottom, A first elastic member provided between the inner circumferential surface of the housing and the outer circumferential surface of the second housing for vibratably supporting the second housing with respect to the first housing and a second elastic member provided in the inner space of the second housing, A second elastic member provided on an inner peripheral surface of the second housing and an outer peripheral surface of the support member to support the support member with respect to the second housing, a second cover coupled to an upper end of the second housing, And a stopper provided on at least one side of the upper surface of the second cover and the upper surface of the support member corresponding to the inner surface of the second cover.

The upper portion of the buffer unit 70 is connected to the lifting actuator 81 of the forward and backward unit 80 supported by the main body portion 11 to move the oscillating body 20 to the main body 11 by the operation of the lifting actuator 81. [ (30). The elevating actuator 81 may be a hydraulic cylinder, and the elevating actuator 81 may be a single acting or double acting cylinder.

The lift actuator 81 may be configured to be linked to a hydraulic motor of a vibration generating unit installed in the vibrating body 20. The hydraulic circuit unit 200 for driving the lift actuator 81 may include a lifting actuator 81 A first hydraulic fluid supply pipe 201 and a first hydraulic fluid return pipe 202 connected to both ports 81a and 81b of a hydraulic cylinder which is a hydraulic cylinder connected to the first hydraulic fluid supply pipe 201, A second hydraulic oil supply pipe 204 connected to the first hydraulic oil supply pipe 201 to drive the hydraulic motor 85 of the vibration generating unit, A control valve 205 installed in the hydraulic oil supply pipes 201 and 202 for selectively supplying hydraulic oil pumped by the hydraulic pump 203 to the first and second ports 81a and 81b, The first hydraulic oil return pipe 202 between the first hydraulic oil return pipe 81b and the control valve 205, A pressure reducing valve 206 is provided.

4, the hydraulic circuit unit 200 includes a port 81c for moving the hydraulic cylinder, which is an elevating actuator, and a third port (not shown) for connecting the hydraulic pump 203 to the port 81c. A pressure reducing valve 212 and a throttle valve 213 provided to the third hydraulic fluid supply pipe 211 from the hydraulic pump side and a third hydraulic fluid supply pipe 211 connected to the third hydraulic fluid supply pipe 211, A third hydraulic oil return pipe 215 branched from the side adjacent to the port 81c and a third hydraulic oil return pipe 215 branched from the third hydraulic oil return pipe 215. The third hydraulic oil return pipe 215, And a pilot check valve 218 connected to the third hydraulic fluid supply pipe by a branch pipe 217. The pressure reducing valve 212 and the throttle valve 213 are installed in the third hydraulic oil supply pipe 211 between the port 81c and the branch pipe 218. [

The hydraulic circuit portion for operating the hydraulic cylinder 81 as the elevating actuator 80 presses the buffer member in conjunction with the operation of the hydraulic motor of the vibration generating unit so that the vibrating body 20 advances relative to the body portion 30 And backward.

As shown in FIG. 6, the tilting unit 60 is provided at the upper side or the side surface of the main body 30 with the operation unit, for example, the coupling part racket 11 for coupling with an excavator. As shown in FIG. 5, the coupling bracket 11 for the main body portion 30 is provided with a first coupling portion 12 projecting from the upper side of the main body portion 30, A second engaging portion 13 is formed on the lower side of the bracket 11 and the first engaging portion 12 and the second engaging portion 13 are coupled by the main hinge shaft 14. [ The first and second coupling portions 12 and 13 are coupled to each other by a coupling direction of the main hinge shaft 14 so that the first and second coupling portions 12 and 13 can be pivoted in the left direction and the right direction with respect to the boom 110 of the excavator 100, 30 in a direction perpendicular to the width direction. A side surface of the coupling bracket 11 and a side surface of the main body 30 are connected to the coupling bracket 11 provided on the upper side of the main body 30 so that the main body 30 can be rotated in the left- And a tining actuator 61 coupled to one side of the hinge shaft so as to be rotatable at both ends thereof. The tilting actuator 61 may be a hydraulic cylinder. The tilting unit 60 is not limited to the above-described embodiment and may be of any structure capable of rotating the main body 30 with respect to the coupling bracket 11. For example, it may be composed of a hydraulic motor installed in a main body coupled to a main rotary shaft, and a gear fixed to a coupling bracket 11 so as to be engaged with a driving shaft provided on a rotary shaft of the hydraulic motor.

The ends of the support members 90 formed on the main body 30 on both sides of the ripple blade 50 and extending in the direction parallel to the ripple blades 50 and shorter than the length of the ripple blades, It is preferable to provide a curved surface so as to increase the supporting force.

7, the rotation unit 30 is installed between the coupling bracket 11 and the main body 30 to rotate the main body 30 of the vibration ripper with respect to the coupling bracket 11 And includes a rotation shaft 301 for coupling the coupling bracket 11 to the main body 30 in a mutually rotatable manner, a ring gear 302 mounted on the rotation shaft 301 or the main body 30, And a driving gear 304 installed on the coupling bracket 11 or on the rotary shaft 301 of the rotary hydraulic motor 303 and engaged with the ring gear 302. The rotating unit is not limited to the above-described embodiment, but may be a structure capable of rotating the main body with respect to the coupling bracket 11.

The tunnel excavation method using the vibration ripper capable of rectilinear motion as described above is characterized in that a vibration ripper 10 capable of rectilinear motion with a support member 90 installed on both side surfaces of the main body 30 is mounted on a boom 110 of an excavator A vibration ripper pressing step of pressing the support member 90 of the vibration ripper mounted on the boom of the excavator so as to be in close contact with the rock crushing site of the tunnel; A crushing step of crushing and crushing an arm by vibrating a vibrating body provided with a ripper blade 50 which is provided with a ripple blade 50, Thereby increasing the crushing force.

And a tilting / rotating step of tilting or rotating the body portion (30) of the vibration ripper to the left or right with respect to the coupling bracket (11) after the vibration ripper mounting step.

The operation of the rectilinear vibration ripper according to the present invention constructed as described above and the tunnel excavation method therefor will now be described in more detail with reference to FIGS. 1 to 9. FIG.

First, the vibration ripper is attached to the excavator 100 by coupling the quick coupler installed on the boom of the excavator and the coupling bracket 11 of the vibration ripper.

The vibrating body 20 is vertically vibrated with respect to the main body 30 by the action of the vibration generating unit so that the ripple blade 50 provided on the lower side of the vibrating body 20 vibrates in the vertical direction.

In this state, as shown in FIG. 2, the excavating and shredding operation is performed by pressing the arm for excavating or breaking the boom 110 using the boom 110. At this time, when the main body portion 30 of the vibration ripper is pressed by the boom, the vibrating body 20 is brought into close contact with the main body portion so that the vibration can be directly transmitted to the main body portion 30, Since the shock absorber unit 70 connected to the lifting actuator 80 is installed, it is possible to prevent the vibration of the vibrating body 20 from being directly transmitted to the main body 30. The supporting member 90 is brought into close contact with the surface of the arm when the ripper blade 50 for crushing the arm is pressed against the perforated holes or cracks of the arm. In this state, the hydraulic cylinder 81 of the lifting actuator 80 is operated to advance the oscillating ripper blade 50. In this way, the main body portion 30 of the vibration ripper can be advanced while being supported by the support member 90, so that the vibration of the ripper blade 50 can be directly transmitted to the main body portion 30 and the boom It can be prevented from being transmitted to the base station.

In addition, when the ripper blade 50 is used in a narrow place such as a tunnel, the excavator 100 is subject to a great deal of restriction due to the rotation of the boom. At this time, the tilting unit 60 is used to operate the boom 110 The main body 30 is tilted at a predetermined angle with respect to the main body 30 of the vibration ripper. In this state, since a large pressure can not be applied by the boom 110 of the excavator, the vibrating body 20 which vibrates using the elevating actuator 80 is advanced straightly to crush the arm. The workability can be improved in a space where rotation of spring is inconvenient. Particularly, since the vibration ripper according to the present invention can rotate the main body portion 30 provided on the coupling bracket 11 with respect to the coupling bracket 11, it is possible to improve the efficiency of excavating the ceiling or side wall of the tunnel in a narrow space such as a tunnel .

As described above, the vibration acting on the vibrating body 20 is transmitted to the ripper blade 50 to break the arm. Since the body portion 30 can be tilted at various angles with respect to the boom, workability can be improved And it is possible to prevent the equipment from being damaged due to vibration transmitted to the boom side.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of protection of the present invention will be determined by the technical idea of the appended claims.

The rectilinear vibratory ripper of the present invention can be applied to excavators and heavy equipment attachments in various ways, in particular, to maximize the working efficiency in tunnels.

Claims

A vibrating body coupled to the main body and the vibrating body supporting unit to vibrate the vibrating body, and a vibration generating unit installed in the vibrating body, And a ripper blade installed on the vibrating body, wherein a buffering unit is provided on the vibrating body, and between the buffering unit and the main body, a forward / backward unit for moving forward and backward the vibrating body and the ripple blade installed on the vibrating body, And,
Wherein the forward / backward unit includes a cushioning portion and an elevating actuator provided on the body portion, and a hydraulic circuit portion for driving the elevating actuator in conjunction with the vibration generating unit provided on the vibrating body.

The method according to claim 1,
Wherein the shock absorber comprises one selected from the group consisting of an elastic member, a shock absorber, an air absorber, and a spring, which is disposed between the vibrator and the main body and is made of rubber.

delete

The method according to claim 1,
Further comprising a tilting actuator coupled to the main body by a main hinge shaft so as to be rotatable in a left and right direction and having both ends thereof mounted on the main body and the coupling bracket.

5. The method of claim 4,
Wherein a support member extending parallel to the ripper blade and shorter than the length of the ripper blade is installed on both sides of the ripper blade.

The method according to claim 1,
The hydraulic circuit includes a first hydraulic oil supply pipe and a first hydraulic oil return pipe connected to both ports of a hydraulic cylinder which is an elevating actuator, a hydraulic pump connected to the first hydraulic oil supply pipe and for pumping hydraulic oil from a hydraulic oil tank, A hydraulic motor of a vibration generating unit driven by being connected to a hydraulic oil supply pipe and a controller valve installed in the first hydraulic oil supply pipe and the first hydraulic return pipe to selectively forward and reverse the hydraulic cylinder when the hydraulic motor is driven Wherein the vibration ripper is a rectilinear vibrating ripple.

The method according to claim 1,
Further comprising: a rotation unit for rotating the main body with respect to the coupling bracket between the coupling bracket and the main body.

A vibrating body coupled to the main body and the vibrating body supporting unit to vibrate the vibrating body, and a vibration generating unit installed in the vibrating body, And a ripper blade installed in the vibrating body, wherein a buffering unit is provided in the vibrating body, and between the buffering unit and the main body, a forward / backward unit for moving forward and backward the vibrating body and the ripple blade installed in the vibrating body A vibration ripper mounting step of mounting a vibration ripper, which is provided on both sides of the main body, with a support member provided on the boom of the excavator,
A vibration ripper pressing step of pressing the support member of the vibration ripper mounted on the boom of the excavator so as to be in close contact with the rock crushing site of the tunnel,
A crushing step of crushing and vibrating the vibrating body provided with a ripper blade installed parallel to the support member,
And advancing the buffer unit by advancing the buffer unit using the lifting actuator of the forward / backward unit to advance the ripper blade to increase the crushing force.

9. The method of claim 8,
Further comprising a tilting / rotating step of tilting or rotating the main body part in the left and right directions of the boom with respect to the coupling bracket after the vibration ripper mounting step.