KR20240024593A - Eco-friendly rock crushing method using vibrating rotary ripper - Google Patents

Abstract

Disclosed is a vibrating rotary ripper according to the present invention and an eco-friendly rock crushing method using the same. The rotational vibration ripper includes a housing with a coupling bracket,
It has a casing supported by a suspension means having elastic force to prevent vibration from being transmitted to the housing, and a crushing rotating wheel coupled to a rotation support shaft rotatably installed on the casing and equipped with a bit for crushing the arm on the outer peripheral surface,
A drive unit installed in the casing to drive the rotation support shaft,
It is provided with a vibration generator that crushes the arm by generating vibration in the radial direction on a rotating crushing wheel installed in the casing.

Description

Vibrating rotary ripper and eco-friendly rock crushing method using it.{Eco-friendly rock crushing method using vibrating rotary ripper}

The present invention relates to a ripper, and more specifically, to an eco-friendly rock crushing method using a vibrating rotary ripper that crushes a rock by vibrating a rotating crushing wheel.

Generally, it is necessary to remove bedrock during civil engineering, building work, or tunnel construction, and crushing work for mining the bedrock is also necessary to produce aggregates for use as building materials.

Methods for crushing such rock include a method of drilling a plurality of holes in the rock using a drilling device and inserting explosives into the hole to explode, and using a crushing device for drilling the rock and breaking the rock. There is a method of crushing rock by inserting it into a drill hole and then expanding it, and a method of crushing rock using excavating devices such as vibration rippers and breakers.

Among the methods described above, the method using explosives has the advantage of being able to crush rock within a short period of time, but it has the problem of weakening the ground of nearby buildings or raising civil complaints from nearby residents as it is accompanied by large vibrations and noise. In particular, the problem of noise during arm crushing work can be prevented to some extent by soundproofing facilities, but in the case of vibration, it is not easy to block the transmission.

Republic of Korea Patent No. 10-2222785 discloses a micro-vibration rock crushing method using a vibrating ripper.

The published micro-vibration rock crushing method using a vibrating ripper includes the steps of crushing a perforation hole, injecting water into the perforation hole, and then inserting the ripper blade of the vibrating ripper into the perforation hole to crush it, and sealing the inside of the perforation hole. It includes the step of installing the member.

In addition, Republic of Korea Patent No. 10-15234219 discloses a rock crushing device and method using a hinge expansion method, and Republic of Korea Patent No. 10-1110352 discloses an eco-friendly urban rock crushing device and a rock crushing method using the same.

Republic of Korea Patent No. 10-2103954 discloses a non-vibration rock crushing device and a rock crushing method using the same.

Korean Patent Publication No. 10-2017-0130354 discloses a hydraulic device for excavators and general construction equipment, and U.S. Patent 6,626,500 discloses the configuration of a cutter including a shell on which two rotating drums are supported. .

As described above, the conventional cutter wheel and face mill have a structure that allows work by applying rotational force and pressure to the drum, but there is a problem in that workability cannot be improved because impact force cannot be provided to the cutter installed on the drum.

In consideration of these problems, the present inventor has developed and registered a rock crushing device using a rotary hammer and a rock crushing method using the same (Korean Patent Publication No. 2022-008798).

Republic of Korea Patent Publication No. 2005-0065476 Republic of Korea Patent No. 10-2222785 Republic of Korea Patent No. 10-15234219 Republic of Korea Patent No. 10-2103954 Republic of Korea Patent Publication No. 10-2017-0130354

The present invention is intended to solve the problems described above. Vibration with impact energy is applied to a crushing rotating wheel with a bit installed on the outer peripheral surface in the radial direction, that is, in the circumferential direction from the center of the crushing rotating wheel, thereby increasing the crushing force of the arm, The purpose is to provide a vibrating rotary ripper that can relatively reduce the noise generated during rock crushing and an eco-friendly rock crushing method using it.

Another object of the present invention is to provide a vibrating rotary ripper that can prevent the crushing surface from becoming mirror-finished by applying continuous impact force along the outer circumferential surface of the rotating crushing wheel and an eco-friendly rock crushing method using the same.

The vibration rotary ripper of the present invention for achieving the purpose includes a housing having a coupling bracket, a casing supported by a suspension means with elastic force to prevent vibration from being transmitted to the housing, and a rotation support shaft rotatably installed on the casing. It is supported and has a crushing rotating wheel with bits for crushing the arm installed on the outer peripheral surface,

A drive unit installed in the casing to drive the rotation support shaft,

A vibration generating unit for crushing the arm by generating vibration in a circumferential direction from the center is provided on the crushing rotary wheel installed in the casing and rotating.

In the present invention, the drive unit includes a hydraulic motor installed in the casing, a drive shaft driven by the hydraulic motor and rotatably installed in the casing, a drive gear installed in the drive shaft, and a rotation support shaft. It includes a driven gear that meshes with the driving gear,

The vibration generator includes at least one eccentric weight installed on the drive shaft or the rotation support shaft to generate vibration in a radial direction of the rotation support shaft. It is desirable to install a flywheel on the drive shaft and install an eccentric weight on this flywheel.

And the suspension unit that elastically supports the casing with respect to the housing includes a support bracket installed on the casing and at least one elastic support member to which at least one side of the support bracket and both ends of the housing are fixed.

In order to achieve the above object, the eco-friendly rock crushing method using a vibrating rotary ripper according to the present invention is rotatably supported on a casing suspended in a housing by a suspension means and drives a crushing rotating wheel with a plurality of bits installed on the outer peripheral surface. A crushing rotating wheel vibration step that vibrates to apply an exciting force in the radial direction,

A crushing groove forming step of forming a crushing groove (trench) in the arm in the longitudinal direction by pressing the crushing arm of the crushing rotating wheel that rotates while vibrating from the center in the circumferential direction by the crushing rotating wheel vibration step;

and an arm crushing step of crushing the arm by applying an external force using an expansion means in the crushing direction to the crushing groove.

In the present invention, the crushing rotation wheel vibration step is to transmit rotational force to the rotation support shaft rotatably installed in the casing and the rotation support shaft, and an eccentric weight is installed on at least one side of the drive shaft driven by a hydraulic motor. This is achieved by vibrating the crushing rotating wheel in the circumferential direction from its center.

The rock crushing step is performed in the direction of expanding the crushing groove by inserting the expansion cylinder of the shale machine, which is an expansion means, into the crushing groove formed by the crushing rotating wheel, or inserting the chisel of the breaker or the blade of the vibrating ripper, which is an attachment of the excavator. It further includes an expansion step of crushing by applying external force.

In addition, the arm crushing step further includes a step of separating the fragments from the arm crushing portion by applying a traction force to the crushed pieces cracked by the striking force of the bit installed on the outer peripheral surface of the crushing rotating wheel in the rotation direction of the crushing rotating wheel.

The vibration rotation ripper further includes a swing step in which a swing unit is installed between the coupling bracket and the housing to rotate the housing forward and backward with respect to the coupling bracket.

The vibrating rotary ripper according to the present invention and the eco-friendly rock crushing method using the same crush the arm by vibrating a closed rotating wheel with a bit installed on the outer peripheral surface in the circumferential direction from the center, thereby improving the crushing power of the arm. In other words, the crushing efficiency of the arm can be improved by continuously applying bits of impact energy acting in the radial direction along the rotational direction.

In addition, the vibration of the crushing rotating wheel and the vibration caused by the reaction force acting on the crushing rotating wheel when crushing the arm can be prevented from being transmitted to the housing and the boom of the excavator through it, thereby reducing the generation of noise, especially during crushing rotation. Using a wheel, a crushing groove for crushing the arm can be formed with a predetermined width, and using this, the subsequent process for crushing the arm can be performed, making it possible to crush the arm in the desired direction.

1 is a perspective view of a vibrating rotary ripper according to the present invention;
Figure 2 is a cross-sectional view of the vibrating rotary ripper shown in Figure 1;
Figure 3 is a perspective view showing an excerpt of the driving unit and vibration generating unit for driving the crushing rotating wheel;
Figure 4 is a cross-sectional view showing another embodiment of the vibrating rotary ripper according to the present invention.
Figure 5 is a block diagram showing an eco-friendly rock crushing method using a vibrating rotary ripper according to the present invention;
Figure 6 is a partially cut side view showing the operating state of the vibration-rotating ripper according to the present invention.

An eco-friendly rock crushing method using a vibrating rotary ripper according to the present invention is shown in Figures 1 to 4.

Referring to the drawing, the vibrating rotary ripper 10 according to the present invention is mounted on a construction machine, that is, an excavator, and can perform tasks such as excavation, crushing of the arm, cutting of the arm, and face cutting of civil engineering buildings. It is provided with a housing (20) equipped with a coupling bracket (21) mounted on the boom of the same construction machine, and a casing (40) supported by a suspension means (30) with elastic force to prevent vibration from being transmitted to the housing. In addition, a rotation support shaft 51 is rotatably installed on the casing 40, and a crushing rotation wheel 50 is installed on the rotation support shaft 51. A plurality of bits 52 are installed on the outer peripheral surface of the crushing rotating wheel 50. And a drive unit 55 for driving the crushing rotating wheel 50 is installed in the casing 40.

The casing 40 is provided with a vibration generator 60 for vibrating the crushing rotating wheel 50 in a radial direction, that is, in a circumferential direction from the center.

Additionally, a swing unit 70 is provided between the housing 20 and the coupling bracket 21 coupled to the boom of the excavator (not shown) to rotate the housing 20 with respect to the coupling bracket 21.

The vibration rotation ripper 10 configured as described above will be described in more detail for each component as follows.

The housing 20, which is coupled to the boom of the excavator by a coupling bracket 21, is for supporting the casing 20 and includes a bracket fixing part 22 where the coupling bracket 21 is installed, and the bracket fixing part 22. It is provided with at least one support portion 23 extending from the side of the casing 40. The coupling bracket 21 may be formed across the bracket fixing part 22 and the support part 23, and the housing 20 is formed by supporting the casing 40 with at least two sides of the casing 40 supported by the suspension means 30. It has a structure that can support and vibrate in the radial direction.

In addition, the drive unit 55 is installed in the casing 40 to rotate the rotation support shaft 51 on which the crushing rotation wheel 50 is installed, and is parallel to the rotation shaft support shaft 51 in the casing 40. A drive shaft 57 is installed in the direction and rotated by a hydraulic motor 56, and an idle shaft 58 is installed between the rotation support shaft 51 and the drive shaft 57.

In addition, a first drive gear (59a) and a first driven gear (59b) meshed with the first drive gear (59a) are installed on the drive shaft (57) and the idle shaft (58), respectively, and the idle shaft (58) and the rotation support shaft (51) are respectively installed. A second driving gear (59c) and a second driven gear (59d) meshed therewith are respectively installed.

As described above, in the configuration of the drive unit 55, the gear ratio of the first drive gear 59a and the first driven gear 59b is increased, and the second drive gear 59c and the second driven gear 59d are increased. It is desirable to increase the gear ratio of ) to increase the rotational torque of the crushing rotary wheel 50 with a relatively small rotational torque. However, the drive unit 55 is not limited to the above-described embodiment.

Meanwhile, the vibration generator 60 has a flywheel 61 installed on the drive shaft 57 to accumulate energy during rotation, and a casing 40 like a crushing rotary wheel 50 on one side of the flywheel 61. ) An eccentric weight 65 is installed to vibrate. The eccentric weight 65 may be installed on one side of the flywheel 65. The vibration generating unit is not limited to the above-described embodiment, and may be formed by installing an eccentric weight on one selected side of the drive shaft, idle shaft, or rotation support shaft.

The suspension means 30 has a support plate 35 installed on one side of the case 40, and brackets 36 installed on both sides of the support plate 35 and the housing 20 to correspond to the support plate 35. ), the first elastic support member 31 is installed, and the second elastic support member 32 is installed between the outer peripheral surface of the casing 40 and the support portion 23 of the upper housing 20.

The suspension means is for vibratingly supporting the casing 40 on the housing 20, and includes a plurality of elastic support members installed on the inner surface of the housing 20 corresponding to the outer peripheral surface of the casing 40. This can be done.

The elastic support member is provided with fixing plates 32 at both ends. The elastic support member may be made of a laminated rubber material, but is not limited thereto.

The suspension means is not limited to the above-described embodiment, and may be any structure that can vibably support the casing 40 relative to the housing 20. The suspension means may have a structure including at least one spring supported by a support means between the casing 40 and the housing 20.

Meanwhile, the swing unit 70 for rotating the housing 20 with respect to the coupling bracket 21 coupled to the boom of the excavator is the subhousing 71 where the coupling bracket 21 is installed, as shown in FIG. 4. It is further provided with, and a housing 20 on which a swing gear 72 is installed is rotatably installed in the subhousing 71, and the rotatable support of the housing 20 with respect to the subhousing 71 is provided by the housing ( This can be achieved by the central axis of the swing gear 72 installed in 20) being rotatably installed in the subhousing 71. And the sub-housing 71 is provided with a swing motor 75 installed with a swing drive gear 74 engaged with the swing gear 72. It is preferable that the swing motor 75 uses a hydraulic motor.

Meanwhile, the eco-friendly rock crushing method using a vibrating rotary ripper as described above can be accomplished in the following steps.

Referring to Figures 2 and 5, the method for crushing the arm using a vibrating rotary ripper is supported by a suspension means on the housing and driving the drive unit 55 mounted on the casing 40 so that the bit 52 A crushing rotating wheel that rotates the installed crushing rotating wheel 50 and also vibrates the crushing rotating wheel 50 in the radial direction, that is, along the rotation direction from the center of the crushing rotating wheel to the circumferential direction by vibration generated from the vibration generating unit. It is provided with a vibration stage (210).

A crushing groove forming step (220) of forming a crushing groove (trech) in the crushing arm by pressing the crushing rotating wheel that rotates while vibrating by the crushing rotating wheel vibration step (210) to the crushing arm, and crushing rotation An arm crushing step 230 is provided to crush the arm using an expansion means that applies an external force to the crushing groove formed by the wheel 50 in the direction in which the crushing groove is expanded.

The crushing wheel vibration step 210 is for transmitting rotational force to the rotation support shaft 51 rotatably installed on the casing 40 and the rotation support shaft 51, and the drive shaft 57 driven by a drive unit. This is achieved by vibrating the casing 40 and the crushing rotating wheel 50 installed thereon by an eccentric weight 65 installed on at least one side of the .

The rock crushing step 230 is performed by inserting a shale or expansion cylinder as an expansion means into the crushing groove formed by the crushing rotating wheel 50, or inserting a chisel of a breaker or a blade of a vibrating ripper, which is an attachment of an excavator, to crush the rock. It further includes a crushing groove expansion step (231) in which external force is applied in the direction of expanding the groove to crush it.

In addition, the arm crushing step includes a fragment separation step of separating the crushed pieces from the arm crushing portion by applying a traction force to the fragment portion of the arm where the crack is generated by the striking force of the bit 52 installed on the outer peripheral surface of the crushing rotating wheel 50. Provide more. The fragment separation step is accomplished by striking the arm with a bit and then pulling it in the direction of rotation.

On the other hand, the vibration rotary ripper has a swing unit 70 installed between the coupling bracket 21 and the housing 20 to perform a swing step to adjust the angle of the crushing rotation wheel 50 according to the crushing position or angle of the arm. More can be provided.

The operation of the vibrating rotary ripper according to the present invention configured as described above and the eco-friendly rock crushing method using the same will be described in more detail as follows.

In order to crush an arm using the vibrating rotary ripper 10 according to the present invention, the coupling bracket 21 is first coupled to the boom 10 of the excavator 100. Then, the hydraulic system of the excavator is connected to the hydraulic motor of the drive unit 55 installed in the casing 40 through a hydraulic line.

In this state, the hydraulic motor 56, which is the drive unit 55 of the vibration rotary ripper 10, is driven to drive the first drive gear 59a and the first driven gear (59a) installed on the drive shaft 57 and these shafts 58. These are rotated using 39b), and rotated on the rotation support shaft 41 by the second drive gear 59c and the second driven gear 59d installed on the tooth shaft 58 and the rotation support shaft 51. I do it.

In this process, the flywheel 61 installed on the drive shaft 57 and the eccentric weight 65 installed thereon rotate, thereby generating vibration.

The vibration generated in this way causes the crushing rotating wheel 50 installed on the casing 40 and the rotation support shaft 41 rotatably installed thereto to vibrate in the radial direction along the rotation direction, that is, in the circumferential direction from the center of the crushing rotating wheel. do.

This vibration causes the rotating shredding wheel 50 to vibrate in all directions, as shown in FIG.

As described above, the arm is crushed using the vibrating crushing rotating wheel 50.

When the arm to be crushed is a soft rock, the arm is crushed and crushed by the rotation and vibration of the rotating crushing rotary wheel (50).

To explain this in more detail, the bits 52 installed on the outer peripheral surface of the rotating crushing rotary wheel 50 rotate and strike the arm to crush it, and the fragments of the broken arm or fragments that have not been completely broken are It is scraped and shredded by the rotational force of the bit 52.

The arm is shredded by changing the shredding rotation wheel 40 at various angles by the swing unit 70.

Therefore, the soft rock is crushed by the cutting action caused by the rotation of the crushing rotating wheel 50 and the impact force that vibrates and rotates in the circumferential direction, that is, the radial direction, from the center. At this time, since the eccentric weight 65 is installed by the flywheel 61, it is possible to prevent the vibration energy caused by the eccentric weight 65 from being reduced by the inertial energy of the flywheel.

When crushing hard rock, a crushing groove 100 is formed in the hard rock using the crushing rotating wheel 40 that vibrates as described above. The crushing groove is formed by the crushing rotating wheel 50, which rotates while vibrating in the circumferential direction from the center of the crushing rotating wheel, so that a large impact is periodically applied to the crushing surface by the bit 52 installed on the outer peripheral surface of the crushing rotating wheel. .

Therefore, some of the hard rock is crushed by the bit 52 and some of the crushed hard rock is torn off. This can increase the crushing force compared to crushing the arm using a simple impact or a conventional bit rotating by load, and the crushing surface is fundamentally mirror-surfaced (a smooth sinking phenomenon) by the bit 52. It can be prevented.

As described above, in the process of crushing hard rock or forming a crushing groove in hard rock, the crushing rotating wheel 50 crushes or breaks the arm with a relatively large amplitude without colliding with the arm, thereby reducing the generation of noise. In particular, since the vibration generator 60 is installed and the casing 40 is elastically supported by the suspension unit, the reaction force and vibration generated when the arm is broken and the fracture groove is formed can be prevented from being transmitted to the boom of the excavator. there is.

If the crushing groove is formed in the same manner as described above, it is not shown in the drawing, but an external force is applied to the crushing groove in the direction in which the arm is crushed using a blade installed on the housing or a separate shale or breaker chisel. Shred.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached registered claims.

Claims (8)

A housing having a coupling bracket,
It has a casing supported by a suspension means having elastic force to prevent vibration from being transmitted to the housing, and a crushing rotating wheel coupled to a rotation support shaft rotatably installed on the casing and equipped with a bit for crushing the arm on the outer peripheral surface,
A drive unit installed in the casing to drive the rotation support shaft,
A vibrating rotary ripper, characterized in that it is provided with a vibration generating unit that crushes the arm by generating vibration in the circumferential direction from the center of the crushing rotary wheel installed and rotating in the casing. According to clause 1,
The drive unit includes a hydraulic motor installed in the casing, a drive shaft driven by the hydraulic motor and rotatably installed in the casing, a drive gear installed on the drive shaft, and a drive gear installed on the rotation support shaft. A vibrating rotary ripper, characterized in that it includes a driven gear that engages, According to clause 1,
The vibration generating unit is eccentrically installed on the drive shaft or eccentrically installed on a driven gear unit for transmitting the power of the drive shaft to the rotation support shaft and includes at least one eccentric weight that generates vibration. According to clause 1,
A vibrating rotary ripper further comprising a swing unit between the coupling bracket and the housing to rotate the housing with respect to the coupling bracket. The casing supported on the housing by the suspension means is rotatably supported, and the crushing rotating wheel with a plurality of bits installed on the outer peripheral surface is driven using a driving unit, and the vibration generating unit installed on the casing moves the crushing rotating wheel from the center of the crushing rotating wheel in the circumferential direction. A crushing rotating wheel vibration stage that vibrates to apply an exciting force,
A crushing groove forming step of forming a crushing groove (trech) by pressing the bit of the crushing rotary body that rotates while vibrating in the radial direction by the crushing rotating wheel vibration step to an arm for crushing;
An eco-friendly rock crushing method using a vibrating rotary ripper having a rock crushing step of crushing the arm by applying an external force to the crushing groove using an expansion means in the direction in which the arm is crushed. According to clause 5,
The crushing rotation wheel vibration step is to transmit rotational force to the rotation support shaft rotatably installed in the casing and the rotation support shaft, and is rotated by rotation of an eccentric weight installed eccentrically on a flywheel installed on a drive shaft driven by a hydraulic motor. An eco-friendly rock crushing method using a vibrating rotary ripper, characterized in that the crushing rotating wheel installed on the support shaft is electrically driven. According to clause 5,
The rock crushing step further includes an expansion step of crushing by inserting an expansion means into the crushing groove formed by the crushing rotating wheel and applying an external force in the direction of expanding the crushing groove. An eco-friendly rock crushing method using a vibrating rotary ripper. . According to clause 5,
The arm crushing step further includes a fragment separation step of separating the crushed pieces from the arm crushing portion by applying a traction force in the rotational direction by the bit of the crushing rotating wheel to the crack area generated by the striking force of the bit installed on the outer peripheral surface of the crushing rotating wheel. An eco-friendly rock crushing method using a vibrating rotary ripper.

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