KR102630757B1 - No-vibration silent Hydraulic Rock Crusher - Google Patents

Abstract

The present invention relates to a vibration-free and noise-free hydraulic rock cutter, and is a further improvement of Patent Application No. 10-2019-0137887, which was my earlier invention.
The rear end of the support is connected to a second joint that can adjust the angle, but the structure of the connection part is dramatically improved.
Basically, even if the cylinder constituting the rock cutter is not exactly aligned with the hole drilled in the rock, the first joint and the second joint are bent at a predetermined angle at the same time, allowing the cylinder to be easily inserted.
During rock cutting, when the body of the rock cutting machine, especially the cylinder for rock breaking, is pressed by the rock cutting, and external pressure is generated, the first joint and the second joint are bent and the angle is adjusted, causing damage to the rock cutting machine and damage during construction due to the external pressure. To completely prevent damage to
In addition, a turning unit is installed at the rear of the second joint to operate the turning unit to rotate the rock crushing cylinder to the left and right, making it easy to adjust the position of the piston.
The rear of the turning unit is installed inside a tubular guide member and connected to the tip of the arm that moves forward and backward by the cylinder, making it easier to insert or remove the cylinder from the hole drilled in the rock by operating the cylinder. This was done so that rock cutting work can be performed more conveniently and quickly without damage to the cutting machine, damage to the construction equipment, and without the risk of safety accidents.

Description

No-vibration silent hydraulic rock crusher {No-vibration silent Hydraulic Rock Crusher}

The present invention relates to a vibration-free and noise-free hydraulic rock cutter. More specifically, the front end of the support constituting the rock cutter is inserted into a drilling hole in the rock, and the rear end of a cylinder equipped with a piston is connected to a first joint that can adjust the angle. And, the rear end of the support is connected to a second joint that can adjust the angle, but by dramatically improving the structure of the connection part,

Basically, the cylinders that make up the rock cutter do not have to be aligned exactly in a straight line with the drilled holes in the rock. The first joint and the second joint are bent at a predetermined angle at the same time, allowing the cylinder to be easily inserted.

During rock cutting, when the body (cylinder) of the rock cutter is pressed by the cutting rock and external pressure occurs, the first and second joints bend and adjust the angle, causing damage to the rock cutter and damage to the construction equipment due to the external pressure. To completely prevent

In addition, a turning unit is installed at the rear of the second joint to operate the turning unit to rotate the cylinder left and right, making it easy to adjust the position of the piston.

The rear of the turning unit is installed inside a tubular guide member and connected to the tip of the arm that moves forward and backward by the cylinder, making it easier to insert or remove the cylinder from the hole drilled in the rock by operating the cylinder. It is about a vibration-free, noise-free hydraulic rock cutting machine that allows rock cutting work to be performed more conveniently and quickly without damage to the cutting machine, damage to construction equipment, and the risk of safety accidents.

In general, gunpowder blasting, which is one of the methods of cutting rock during various civil engineering projects, involves drilling a number of blast holes on the rock surface to be cut through a perforator and placing explosives inside them. After charging, it is filled with sand, etc. to increase the explosive power, and the detonator connected to the explosive is exploded simultaneously or at regular intervals to cut the rock surface.

However, the method of cutting the rock surface using explosives as described above had the disadvantage of not only causing many civil complaints due to vibration, noise, and dust caused by the explosion, but also causing damage to surrounding buildings and weakening the ground.

To solve this problem, a hydraulic piston type vibration-free and noise-free rock cutting method was proposed. In the rock cutting method, a hydraulic rock cutting device is inserted into a hole drilled in the rock, and when operating oil is supplied to the hydraulic rock cutting device, the piston is raised and lowered. There is something that causes the bedrock to be incised.

Related to this technology, it is disclosed in Public Utility Model No. 1998-034154, Patent Registration No. 10-287989, Patent Registration No. 10-0318287, etc. If this is roughly explained, the hydraulic supply device as shown in FIG. 1 When hydraulic pressure is supplied to the inside of the cylinder 20 through the hydraulic supply passage from (10), the plurality of pistons 21 installed inside the cylinder 20 are raised to cut the rock 1.

However, the conventional hydraulic rock cutting machines described above have the advantage of using a vibration-free and noise-free rock cutting method.

Since the main body of the hydraulic rock cutter, which is a heavy body, must be lifted one by one by a person and then inserted and installed into the drilling hole (1a) formed in the rock (1), this work was very inconvenient, difficult, time-consuming, and unsafe. There was always the risk of an accident occurring.

In addition, as the bedrock (1) was cut, the body (cylinder) of the rock cutter was pressed by the cut rock (1) or stuck between the cut surfaces, making it impossible to easily remove it. In addition, it was difficult to remove the body (cylinder) of the rock cutter (1). Even then, the work was very inconvenient and difficult, took a lot of time, and there was always a risk of safety accidents.

Therefore, there were various problems such as low work ability, low economic feasibility, and the risk of safety accidents always existed.

Accordingly, there is Patent Application No. 10-2019-0137887, which is my previously filed invention, designed to solve the above-mentioned problems.

This is inserted into a drilled hole in the bedrock, and is installed at the rear end of a cylinder equipped with a piston. A support bar equipped with a boom bar mounting bracket, which is mounted on a boom bar during construction, is connected and installed in various ways, and the first joint is formed at the connection between the cylinder and the support. And a second joint is formed between the support and the boom mounting bracket.

When cutting rock, a hydraulic rock cutter with a heavy weight can be used by connecting it to the boom bar of a heavy construction machine to facilitate rock cutting. In particular, the cylinder that makes up the rock cutter is precisely aligned with the hole drilled in the rock. Even if you don't match it. The first joint and the second joint are bent at a predetermined angle at the same time, allowing the cylinder to be easily inserted.

During rock cutting, when the body (cylinder) of the rock cutter is pressed by the cutting rock and external pressure occurs, the first and second joints bend and adjust the angle, causing damage to the rock cutter and damage to the construction equipment due to the external pressure. As a result, it is possible to perform rock cutting work easily and quickly without any risk of safety accidents, without damage to the rock cutter or damage to the construction equipment.

The present invention is a further improvement of Patent Application No. 10-2019-0137887, which was my earlier application, which was designed to solve all the problems of the prior art as described above.

The rear end of the support is connected to a second joint that can adjust the angle, but the structure of the connection part is dramatically improved.

Basically, the cylinders that make up the rock cutter do not have to be aligned exactly in a straight line with the drilled holes in the rock. The first joint and the second joint are bent at a predetermined angle at the same time, allowing the cylinder to be easily inserted.

During rock cutting, when the body (cylinder) of the rock cutter is pressed by the cutting rock and external pressure occurs, the first and second joints bend and adjust the angle, causing damage to the rock cutter and damage to construction equipment due to the external pressure. To completely prevent even

In addition, a turning unit is installed at the rear of the second joint to operate the turning unit to rotate the cylinder left and right, making it easy to adjust the position of the piston.

The rear of the turning unit is installed inside a tubular guide member and connected to the tip of the arm that moves forward and backward by the cylinder, making it easier to insert or remove the cylinder from the hole drilled in the rock by operating the cylinder. The purpose is to provide a vibration-free and noise-free hydraulic rock cutter that allows rock cutting work to be performed more conveniently and quickly without damage to the cutter or construction equipment and without the risk of safety accidents.

The non-vibration and noise-free hydraulic rock cutting machine of the present invention to achieve the purpose described in the problem to be solved above basically consists of:

A cylinder inserted into a drilled hole in the bedrock and provided with a plurality of pistons that are raised and lowered by hydraulic pressure;

A support bar connected to the rear end of the cylinder and installed in connection with a boom mounting bracket mounted on a boom pole during construction;

A connecting member configured to connect the cylinder and the support to enable angle adjustment while providing means for adjusting tension; Includes,

The cylinder and the support are connected and installed through a first joint whose angle is adjustable,

A second joint capable of adjusting the angle is formed at the rear end of the support that is installed in connection with the boom mounting bracket mounted on the boom during construction,

By installing a turning unit at the rear of the second joint and operating the turning unit, the cylinder can be rotated left and right,

It is characterized in that the rear of the turning unit is connected to the tip of an arm that is built into a tubular guide member and moves forward and backward by a cylinder, so that the cylinder can be operated to easily insert or remove the cylinder from a hole drilled in the rock. will be.

The vibration-free, noise-free hydraulic rock cutter of the present invention is a further improvement of the patent application No. 10-2019-0137887, the author's earlier application, and the structure has been dramatically improved,

Basically, the cylinders that make up the rock cutter do not have to be aligned exactly in a straight line with the drilled holes in the rock. The first joint and the second joint are bent at a predetermined angle at the same time, allowing the cylinder to be easily inserted.

During rock cutting, when the body (cylinder) of the rock cutter is pressed by the cutting rock and external pressure occurs, the first and second joints bend and adjust the angle, causing damage to the rock cutter and damage to the construction equipment due to the external pressure. The advantage of completely preventing even

In addition, a turning unit is installed at the rear of the second joint to operate the turning unit to rotate the cylinder left and right, making it easy to adjust the position of the piston.

The rear of the turning unit is installed in a tubular guide member and connected to the tip of the arm that moves forward and backward by the cylinder, making it easier to insert or remove the cylinder from a hole drilled in the rock by operating the cylinder.

In this way, the present invention is much more convenient than other existing rock cutting machines as well as patent application No. 10-2019-0137887, which is my earlier invention, without damaging the rock cutting machine or damaging the construction equipment, and without the risk of safety accidents. It is clear that it is a very groundbreaking invention that can quickly perform rock cutting work, further improving work ability, increasing economic efficiency, and cutting rock without the risk of safety accidents.

Figure 1 is a configuration diagram of a conventional hydraulic rock cutter.
2 to 5 are diagrams showing an embodiment of the hydraulic rock cutter of the present invention,
Figure 2 is a perspective view showing the overall configuration.
Figure 3 shows a state diagram of installation in connection with the boom mounting bracket in the middle of construction.
Figure 4 is a cross-sectional example showing the configuration of the main part.
Figure 5 is a view showing the bending state of the first and second joints.
Figure 6 is a view showing another embodiment of the second joint according to the present invention.
Figure 7 is a diagram showing the state of use of the present invention.
Figure 8 is an enlarged view of the state of use of the present invention.

Hereinafter, an embodiment of the present invention to achieve the object described in the problem to be solved will be described in detail based on FIGS. 2 to 8 of the attached drawings. An embodiment described below is shown as an example to aid understanding of the present invention, and it should be understood that the present invention can be implemented with various modifications different from the embodiment described herein. However, when describing the present invention, if it is determined that detailed descriptions of related known functions or components may unnecessarily obscure the gist of the present invention, the detailed descriptions and specific illustrations will be omitted. Additionally, in order to facilitate understanding of the invention, the attached drawings are not drawn to scale and the dimensions of some components may be exaggerated.

The vibration-free, noise-free hydraulic rock cutter of the present invention is inserted into the drilling hole 1a of the rock 1 at the tip of the support 200, and the rear end of the rock crushing cylinder 100 equipped with the piston 110 is angle-adjustable. Connected and installed to the first joint portion 400,

The rear end of the support 200 is connected to a second joint 500 whose angle is adjustable,

By dramatically improving the structure of each connection part, a turning unit 600 is installed at the rear of the second joint, and the turning unit 600 is operated to rotate the rock crushing cylinder 100 left and right to adjust the position of the piston. In addition to making this easy,

The rear of the turning unit 600 is installed inside the tubular guide member 700 and is connected to the front end of the arm 710 that moves forward and backward by the forward and backward cylinder 711. ) is operated to make it easier to insert or remove the rock crushing cylinder (100) from the hole (1a) drilled in the rock (1), so there is no damage to the rock cutter or damage to the construction period, and no safety accidents occur. Its characteristic is that it can be carried out simply and quickly without risk.

Looking at an embodiment of the vibration-free and noise-free hydraulic rock cutting machine of the present invention, as shown in FIGS. 2 to 5 of the accompanying drawings, a hydraulic supply device (not shown) flows to the inside of the rock crushing cylinder 100 through a hydraulic supply passage. It relates to a non-vibration and noise-free hydraulic rock cutter configured to cut rock by supplying hydraulic pressure to raise a plurality of pistons (110) installed inside a rock crushing cylinder (100),

A rock crushing cylinder 100 that is inserted into the drilled hole 1a of the rock 1 and is provided with a plurality of pistons 110 that are raised and lowered by hydraulic pressure;

A support 200 connected to the rear end of the rock crushing cylinder 100 and installed in connection with a boom mounting bracket 201 mounted on a boom during construction.

A connecting member 300 that connects the rock crushing cylinder 100 and the support 200 and is provided with a tension adjustment means 350 and is configured to adjust the angle at the same time; Includes,

The rock crushing cylinder 100 and the support 200 are connected and installed with a first joint 400 whose angle is adjustable,

A second joint 500 capable of adjusting the angle is formed at the rear end of the support 200, which is installed in connection with the boom mounting bracket 201 mounted on the boom during construction,

A turning unit 600 is installed at the rear of the second joint 500, and the turning unit 600 is operated to form the rock crushing cylinder 100 to be rotatable left and right,

The rear of the turning unit 600 is installed inside the tubular guide member 700 and is connected to the front end of the arm 710 that moves forward and backward by the forward and backward cylinder 711. ) is operated to make it easy to insert or remove the rock crushing cylinder 100 from the drilled hole 1a in the rock 1.

In the present invention, the turning unit 600 may be used as a known unit configured to rotate left and right by hydraulic pressure, but may also be used as a turning unit configured to rotate left and right by a general mechanical motor.

In addition, the angle-adjustable connecting member 300 connecting the rock crushing cylinder 100 and the support 200 is selected and used from among the configuration examples presented in Patent Application No. 10-2019-0137887, the inventor of my earlier application. Although possible, in the present invention, as another configuration example, the tip of the connecting member 300 is connected with a chain 301 to enable angle adjustment up, down, left, and right.

And, the tension adjusting means 350 provided on the connecting member 300 is,

As in my earlier invention, the rear end of the connecting member 300 is connected to the piston 352, which is provided in the hydraulic cylinder 351 and moves forward and backward by hydraulic pressure, and the piston 352 is retracted using hydraulic pressure to crush rock. The tensile force was adjusted by pulling the cylinder 100 toward the support 200, and as a result, the fastening strength of the first joint 400 could be adjusted.

Meanwhile, in the present invention, a second joint 500 whose angle is adjustable is formed at the rear end of the support 200,

Here, the second joint 500 capable of adjusting the angle includes a flange 210 coupled to the head portion of the support 200 and a flange 610 coupled to the turning unit 600, as shown in FIGS. 4 and 5. ) are connected and installed to maintain the predetermined gap with the gap maintenance bolt (10), but the diameter of the bolt fastening hole is formed to be larger than the diameter of the gap maintenance bolt (10) so that the gap maintenance bolt (10) can move. At the same time as allowing;

A horizontal maintenance cylinder 20 is installed on the outer surface of the flange 210 coupled to the head of the support 200. When the piston rod 21 is advanced, the flange 610 coupled to the turning unit 600 is pressed. By giving the support 200 to be horizontal,

When the piston rod 21 is retracted, the pressure on the flange 610 coupled to the turning unit 600 is released and the support 200 is bent downward by its own weight centered on the gap maintenance bolt 10;

An elastic member 30 is installed between each of the flanges 210 and 610, so that when the support 200 bends downward due to its own weight, the elastic member 30 bends elastically without undue strain on the bent area. Of course, it can be done,

As shown in Figure 6 of the attached drawing, a gap maintenance member 40 is formed in the middle of the flange 210 coupled to the head portion of the support 200 and the flange 610 coupled to the turning unit 600. They are connected and installed at predetermined intervals with bolts (10), but the diameter of the bolt fastening hole is made larger than the diameter of the gap maintenance bolt (10) so that the gap maintenance bolt (10) can move,

A horizontal maintenance cylinder (20) is installed on the outer surface of the flange (210) coupled to the head of the support (200). When the piston rod (21) is retracted, the flange (610) coupled to the turning unit (600) is pulled. By giving the support 200 to be horizontal,

When the hydraulic pressure is released, the piston rod 21 moves forward on its own, the pressure on the flange 610 coupled to the turning unit 600 is released, and the support 200 bends downward by its own weight centered on the gap maintenance bolt 10. As much as possible,

An elastic member 30 is installed outside the gap maintenance bolt 10 between each of the flanges 210 and 610, so that when the support 200 is bent downward by its own weight, it bends due to the elasticity of the elastic member 30. It can also be bent elastically without causing strain to the area.

Hereinafter, the state of use of the vibration-free, noise-free hydraulic rock cutting machine of the present invention configured as described above will be described.

The hydraulic rock cutter of the present invention is used by being installed in various ways on the boom bar mounting bracket 201 connected to the boom bar of a heavy construction machine. In the present invention, only the operating state of the hydraulic rock crusher is described.

When the construction of the hydraulic rock cutter of the present invention is completed, the rock cutter is first lifted using a heavy construction machine and the rock crushing cylinder 100 constituting the rock cutter is placed in the drilling holes 1a drilled at predetermined intervals on the wall of the rock 1. ) must be inserted and installed.

At this time, since other conventional rock crushers do not have a first joint 400 and a second joint 500 like the hydraulic rock crusher of the present invention, the rock crushing cylinder 100 constituting the rock cutter is used to crush the rock. The rock crushing cylinder 100 can be inserted only when it is accurately aligned with the drilled hole 1a in (1), but this matching operation was very difficult and time-consuming.

However, since the hydraulic rock crusher of the present invention is formed with a first joint portion 400 and a second joint portion 500, the turning unit 600 installed at the rear of the second joint portion 500 is first operated to operate the rock crushing cylinder. While rotating (100) left and right, the position of the piston 110 formed in the rock crushing cylinder 100 is adjusted upward,

By operating the horizontal maintaining cylinder 20 of the second joint 500 to release the horizontal fixing force of the support 200, the support 200 can be smoothly bent up, down, left and right while receiving elasticity from the elastic member 30. Let it happen.

That is, when the second joint 500 is configured as shown in FIG. 4, the piston rod 21 is moved backward by operating the horizontal maintaining cylinder 20 as shown in FIG. 5, and the flange 610 coupled to the turning unit 600 As the pressure is released, the support 200 can be bent up, down, left, and right around the gap maintenance bolt 10,

When the second joint 500 is configured as shown in FIG. 6, the hydraulic pressure of the gap maintenance cylinder 20 is released, the pull of the flange 610 coupled to the turning unit 600 is released, and the gap maintenance bolt 10 is released. The support 200 can be bent up, down, left, and right around .

Then, the arm 710 installed within the tubular guide member 700 is advanced using the forward and backward cylinder 711, and the rock crushing cylinder 100 connected to the tip of the support 200 is advanced. Insert it into the hole (1a) drilled in the bedrock.

Then, even if the rock crushing cylinder 100 constituting the rock cutter is not exactly aligned in a straight line with the drilled hole 1a in the rock 1, the first joint 400 and the second joint 500 are formed. At the same time, the rock crushing cylinder 100 is easily inserted while being bent at a predetermined angle.

In this way, by using the hydraulic rock crusher of the present invention, the rock crushing cylinder 100, which constitutes the rock crusher, can be inserted and installed very simply, quickly, and completely into the drilled hole 1a in the rock 1.

In this way, the rock crushing cylinder 100 is easily inserted and installed into the drilled hole 1a in the rock 1, and the hydraulic supply device (not shown) is operated to supply hydraulic pressure through the hydraulic supply passage. At the bottom, a plurality of pistons 110 installed inside the rock crushing cylinder 100 rise and cut the rock 1.

At this time, even if external pressure is generated as the rock mass (1) is cut and the cylinder (100) of the rock cutter is pressed by the cut rock (1), the support formed on the rock crushing cylinder (100) and the support stand (200) Since the inclined contact surface (410a) (420a) or the inclined contact surface (430a) is connected and installed in close contact with the first joint part (400), the first joint part (400) is bent at a predetermined angle and shock is absorbed, thereby forming a hydraulic cutter. In addition to preventing damage to

At the same time, the second joint portion 500 also bends while interlocking with each other to more efficiently absorb and block the shock caused by external pressure, so the shock is blocked from being transmitted even during the middle construction period, and damage during the middle construction period is also prevented.

At this time, when the first joint 400 is bent at a predetermined angle, the tip of the connecting member 300 is connected to the chain 310, so this part is bent and does not interfere with the bending of the first joint 400. It won't happen.

After the rock mass (1) is cut as described above, even if the rock crushing cylinder (100) of the rock cutting machine is tightly sandwiched between the cut rock masses (1), the rock crushing cylinder (100) of the rock cutting machine is used using heavy construction equipment. (100) can be easily removed and reused. At this time, if the first joint portion 400 is bent, the piston ( 352) is advanced toward the cylinder 100 to loosen the tension of the connecting member 300. As a result, the fastening strength of the first joint 400 is loosened and the cylinder 100 is made straight again. .

In the case of the second joint portion 500, when configured as shown in FIG. 4, the horizontal maintenance cylinder 20 installed on the outer surface of the flange 210 coupled to the head portion of the support 200 is operated to maintain the piston rod 21. ) is advanced to pressurize the flange 610 coupled to the turning unit 600 so that the support 200 is horizontal,

When the second joint portion 500 is configured as shown in FIG. 6, the horizontal maintenance cylinder 20 installed on the outer surface of the flange 210 coupled to the head portion of the support 200 is operated to move the piston rod 21 backward. The support 200 can be made horizontal by pulling the flange 610 coupled to the turning unit 600.

As described above, when using the vibration-free and noise-free hydraulic rock crusher of the present invention, the work of inserting and installing the rock crushing cylinder 100 of the rock cutter into the drilling hole 1a formed in the rock 1 using a construction machine is very difficult. It is done simply and quickly,

When the rock crushing cylinder 100 of the rock cutting machine is pressed by the rock 1 cut during rock cutting, or external pressure occurs, the first joint connecting the rock crushing cylinder 100 and the support 200 ( 400) and the second joint portion 500 are bent and the angle is adjusted, thereby completely preventing damage to the rock cutter and damage to the construction period due to external pressure.

Even if the rock crushing cylinder 100 of the rock cutter is tightly caught between the cut rock masses 1, the rock crushing cylinder 100 of the rock cutter can be easily removed using a heavy construction machine.

Therefore, overall, rock cutting work can be carried out simply and quickly without the risk of damage to the rock cutting machine and construction equipment or safety accidents.

As described above, although the present invention has been described by means of limited embodiments and drawings, it is not limited by these embodiments, and the technical idea of the present invention and the following will be described by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalence of the patent claims.

1:Bedrock 1a:Drilling hole
10: Bolt for maintaining spacing 20: Cylinder for maintaining horizontality
21: Piston rod 22: Ring
30: elastic member 40: gap maintenance member
100: Cylinder for rock crushing 110: Piston
200: Support 201: Boom mounting bracket
300: Connecting member 310: Chain
400: first joint part 410: first joint member
420: Second joint member 500: Second joint member
510: Second auxiliary joint member 530: Connection bolt
600: Turning unit 700: Guide member
710: Arm 711: Forward and backward cylinder

Claims (4)

A rock crushing cylinder 100 that is inserted into the drilled hole 1a of the rock 1 and is provided with a plurality of pistons 110 that are raised and lowered by hydraulic pressure;
A support 200 connected to the rear end of the rock crushing cylinder 100 and installed in connection with a boom mounting bracket 201 mounted on a boom during construction.
A connecting member 300 that connects the rock crushing cylinder 100 and the support 200 and is provided with a tension adjustment means 350 and is configured to adjust the angle at the same time; Includes,
The rock crushing cylinder 100 and the support 200 are connected and installed with a first joint 400 whose angle is adjustable,
A second joint 500 capable of adjusting the angle is formed at the rear end of the support 200, which is installed in connection with the boom mounting bracket 201 mounted on the boom during construction,
A turning unit 600 is installed at the rear of the second joint 500, and the turning unit 600 is operated to form the rock crushing cylinder 100 to be rotatable left and right,
The rear of the turning unit 600 is installed inside the tubular guide member 700 and is connected to the front end of the arm 710 that moves forward and backward by the forward and backward cylinder 711. ) in a non-vibrating, noise-free hydraulic rock cutter that operates to facilitate insertion or extraction of the forward and backward cylinder 711 into the drilled hole 1a in the rock 1,
The angle-adjustable connecting member 300 connecting the rock crushing cylinder 100 and the support 200,
A non-vibration and noise-free hydraulic rock cutter, characterized in that the tip of the connecting member (300) is connected and installed with a chain (301) to easily adjust the angle up, down, left, and right. delete According to clause 1,
The angle-adjustable second joint portion 500 is,
The flange 210 coupled to the head of the support 200 and the flange 610 coupled to the turning unit 600 are connected and installed to maintain a predetermined distance with the space maintaining bolt 10. ) The diameter of the bolt fastening hole is formed to be larger than the diameter of ) so that the gap maintenance bolt 10 can move;
A horizontal maintenance cylinder 20 is installed on the outer surface of the flange 210 coupled to the head of the support 200. When the piston rod 21 is advanced, the flange 610 coupled to the turning unit 600 is pressed. By giving the support 200 to be horizontal,
When the piston rod 21 is retracted, the pressure of the flange 610 coupled to the turning unit 600 is released and the support 200 is bent downward by its own weight centered on the gap maintenance bolt 10;
An elastic member 30 is installed between each of the flanges 210 and 610, so that when the support 200 bends downward due to its own weight, the elastic member 30 bends elastically without undue strain on the bent portion. A non-vibration and noise-free hydraulic rock cutting machine characterized by being made to be. According to clause 1,
The angle-adjustable second joint portion 500 is,
The flange 210 coupled to the head of the support 200 and the flange 610 coupled to the turning unit 600 are connected at a predetermined interval with a space maintaining bolt 10 having a space maintaining member 40 in the middle. When installed, the diameter of the bolt fastening hole is formed to be larger than the diameter of the gap maintenance bolt 10 so that the gap maintenance bolt 10 can move;
A horizontal maintenance cylinder 20 is installed on the outer surface of the flange 210 coupled to the head of the support 200, and when the piston rod 21 is retracted, the flange 610 coupled to the turning unit 600 is pulled. By giving the support 200 to be horizontal,
When the hydraulic pressure is released, the piston rod 21 moves forward on its own, the pressure on the flange 610 coupled to the turning unit 600 is released, and the support 200 bends downward by its own weight centered on the gap maintenance bolt 10. Make it possible;
An elastic member 30 is installed outside the gap maintenance bolt 10 between each of the flanges 210 and 610, so that when the support 200 is bent downward by its own weight, it bends due to the elasticity of the elastic member 30. A non-vibration and noise-free hydraulic rock cutter that is made to bend elastically without causing strain to the area.

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