KR20170020831A - Breaker Having Intermediate Transfer Unit - Google Patents
Breaker Having Intermediate Transfer Unit Download PDFInfo
- Publication number
- KR20170020831A KR20170020831A KR1020170016233A KR20170016233A KR20170020831A KR 20170020831 A KR20170020831 A KR 20170020831A KR 1020170016233 A KR1020170016233 A KR 1020170016233A KR 20170016233 A KR20170016233 A KR 20170016233A KR 20170020831 A KR20170020831 A KR 20170020831A
- Authority
- KR
- South Korea
- Prior art keywords
- striking
- intermediate transfer
- transfer unit
- piston
- bush
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/305—Arrangements for breaking-up hard ground
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/24—Safety devices, e.g. for preventing overload
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breaker having an intermediate transfer unit, and more particularly, to a breaker having an intermediate transfer unit capable of preventing an impact from being transmitted to a piston due to a repulsive force generated when the object is hit with a chisel will be.
Generally, a breaker mounted on an excavator is mounted on a front head of a hitting piston mounted inside the main body, and hits the chisel to crush an object to be hit such as a rock.
A conventional structure of such a breaker includes a cylinder constituting a body, a piston provided so as to be vertically reciprocable within the cylinder, a housing connected to a lower portion of the cylinder and provided with a hitting chamber to which the piston is hammered, And a chisel disposed in the housing so as to be positioned in the chamber and breaking the object to be struck
The chisel is configured to transfer the kinetic energy of the piston to the impact object by changing the impact energy.
The piston moves downward from the position of the top dead center, which is the maximum rising position, to the position of the bottom dead center, which is the maximum striking position. When the lower end of the piston hits the top of the chisel, the chisel transmits the impact energy, .
In this case, when the piston is moved from the raised position to the striking position, the piston can not hit the chisel and directly hits the inner wall of the cylinder or the housing, Excessive stress and impact are generated in the cylinder.
This phenomenon is called no-load strikes or idle blow. If the worker does not stop the operation of the breaker after the object to be crushed is crushed, the crane is continuously operated in the open state.
Generally, the worker is aware that the destruction of the object of crushing is completely finished, and the occurrence of the crushing occurs during the time it takes to stop the operation of the breaker.
When such a rattling occurs, the impact is transmitted to the housing or the internal assembling parts, thereby deteriorating the service life of the breaker.
On the other hand, when the impact object is crushed using the force applied to the piston by the chisel, a repulsive force is generated in the direction in which the piston strikes the chisel from the impact object until the crushing of the object is completed.
This repulsive force causes the chisel to rise and strike the piston and the inside of the housing. Particularly, vibration and noise are further increased due to collision between the hitting force of the piston and the repulsion force of the hitting object, so that the durability of the breaker is remarkably lowered.
Therefore, a method for solving such problems is required.
SUMMARY OF THE INVENTION The present invention has been conceived to solve the above problems of the prior art, and it is an object of the present invention to provide a hermetic compressor which has a separate intermediate transfer unit between a piston moving up and down and a hitting unit hitting a hitting object, To prevent breakage of the piston by preventing the breaker from being transmitted to the piston.
The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.
In order to achieve the above object, a breaker having an intermediate transfer unit according to the present invention includes a cylinder provided with a piston capable of reciprocating motion by a separate drive pump, a cylinder provided below the cylinder, A piston which is formed in the housing and in which the piston is lowered to be inserted into the striking space, a striking unit disposed at a lower portion of the piston inside the housing, the striking unit having a lower side for charging the striking object, And an intermediate transfer unit disposed between the lower portion and the striking unit, the lower portion contacting the upper side of the chisel and transmitting a force generated by the price of the piston to the striking unit.
The housing may include an upper bush provided at least on a side of the inner side and disposed on the upper side of the intermediate striking part to form the striking space.
In addition, the striking unit may be formed in a long shape, and an upper end portion may be disposed at a lower portion of the upper bushing to seal the striking space, a lower portion of which may be provided with a chisel for vertically bending the striking object, And a lower bush which surrounds and supports the upper circumference of the chisel.
The intermediate transfer unit may further include a first elastic member provided between the intermediate transfer unit and the upper bush and elastically supporting the second intermediate member, and a second elastic member provided between the lower intermediate bush and the lower bush to elastically support the intermediate transfer unit.
In addition, the first elastic member may be formed to have a rigidity larger than that of the second elastic member.
In addition, at least one of the first elastic member and the second elastic member may be formed by being spaced apart from each other in the circumferential direction of the intermediate transfer unit.
In addition, the intermediate transfer unit may be formed such that a lower surface thereof is recessed, and an upper end of the chisel is disposed inside the lower bush.
In addition, the housing may include an inner diameter reducing portion that has a relatively small inner diameter at a lower portion of the hitting space.
Also, at least a part of the upper surface of the intermediate transfer unit may be protruded upward to be inserted into the hitting space to seal the hitting space.
The apparatus may further include a vacuum control unit that communicates with the hitting space and adjusts the inside of the hitting space to a vacuum atmosphere to reduce noises during hitting the piston.
The breaker having the intermediate transfer unit of the present invention for solving the above-mentioned problems has the following effects.
First, a separate intermediate transfer unit is provided between a piston that moves up and down in the housing and a chisel that hits the striking object, so that the blow by the piston is transmitted to the chisel through the intermediate transfer unit, There is an effect that the repulsive force of the chisel can be prevented from being transmitted to the piston.
Second, since the striking space inside the housing is closed and a vacuum atmosphere is formed, there is an advantage that the noise generated when the piston hits the intermediate transfer unit can be reduced.
The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of the outline of a breaker according to the present invention; FIG.
2 is an exploded perspective view schematically showing a concrete structure of a breaker according to the present invention;
Figure 3 schematically illustrates the internal construction of the breaker of Figure 1; And
Fig. 4 is a view showing a state in which the piston strikes the striking unit in the breaker of Fig. 1
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.
First, the breaker according to the present invention is an apparatus for crushing or machining a striking object by striking an upper side of the striking unit that contacts the striking object through a piston that moves up and down with hydraulic pressure or pneumatic pressure.
A breaker according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG.
FIG. 1 is a schematic view showing the outline of a breaker according to the present invention, and FIG. 2 is an exploded perspective view schematically showing a concrete structure of a breaker according to the present invention.
FIG. 3 is a schematic view showing the internal construction of the breaker of FIG. 1, and FIG. 4 is a view illustrating a state where the piston strikes the striking unit in the breaker of FIG.
Referring to the drawings, a breaker according to the present invention mainly includes a
The
Here, the
In the present invention, the drive pump may be composed of a high-pressure pump and a low-pressure pump, thereby moving the
Meanwhile, the
Specifically, the
The piston (110) supports the intermediate transfer unit (300) inside the housing (200).
The
The configuration of the
In this embodiment, the
Here, the
In addition, the
The inner
As shown in the figure, at least a portion of the inner
An upper portion of the
When the striking object (not shown) strikes the striking object (not shown) by the
That is, the upper end of the
In the present embodiment, the hitting
The
Specifically, the
Here, the
At this time, it is preferable that the
In the present embodiment, the
That is, in the present invention, the
The
Meanwhile, the
Specifically, the
Here, the
The
As shown in the drawing, the
Accordingly, the
The
Specifically, the
Here, the
Thus, the
The
Specifically, the
At this time, a part of the upper surface of the
Accordingly, a part of the
When the
That is, the
The
Here, when the
In the present embodiment, at least a part of the upper surface of the
That is, at least a part of the lower surface of the
This allows the impact applied to the
The
In addition, the
Specifically, the
However, as soon as the
Accordingly, the sealing
Of course, even if the sealing
As described above, the
The
Specifically, the first
At this time, the first
Since the first
The first
At least one of the first
The first
The
When the
This phenomenon is called no-load strikes or idle blow.
However, since the upper part of the
In addition, the
That is, the
As described above, the breaker according to the present invention includes the
Meanwhile, the breaker according to the present invention further includes a
The
Specifically, the
At this time, the upper part of the
Generally, in the vacuum state, when the noise is generated, the air as the transmission medium is reduced, and the transmission is not smooth.
Accordingly, the
That is, since the upper end of the
In this embodiment, the
As described above, the breaker according to the present invention includes the
It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.
100: Cylinder
110: Piston
200: Housing
210: Hitting space
300: intermediate transfer unit
310: first elastic member
320: second elastic member
400: Striking unit
410: Lower bush
420: Chisel
500: Vacuum control unit
Claims (8)
A housing provided at a lower portion of the cylinder and penetrating along the vertical direction and having the striking space formed therein, the piston being lowered to be inserted into the striking space;
A striking unit disposed at a lower portion of the piston inside the housing, the striking unit having a lower side for charging the striking object; And
An intermediate transfer unit disposed between the striking unit and the lower portion of the striking space and having a lower portion in contact with the upper side of the chisel and transmitting a force generated by the cost of the piston to the striking unit;
And an intermediate transfer unit including the intermediate transfer unit.
The housing includes:
And an intermediate bushing disposed on at least a part of a side surface of the intermediate bushing and disposed above the intermediate bushing to form the bushing space.
The striking unit includes:
A chisel whose upper end is disposed at a lower portion of the upper bush to close the hitting space and a lower side of which is to be hit with the hitting object; And
A lower bush disposed at a lower portion of the upper bush in a vertically penetrating shape and surrounding and supporting the upper periphery of the chisel;
And an intermediate transfer unit including the intermediate transfer unit.
The intermediate transfer unit includes:
And a second elastic member provided between the first bush and the upper bush to elastically support the first bush and the second bush, and a second elastic member provided between the first bush and the lower bush and elastically supporting the first bush.
The first elastic member
Wherein the second elastic member is relatively stiff and has a larger rigidity than the second elastic member.
Wherein at least one of the first elastic member and the second elastic member is formed by being spaced apart from each other in the circumferential direction of the intermediate transfer unit.
The intermediate transfer unit includes:
At least a part of the upper surface protruding upward to be inserted into the inside of the striking space to seal the striking space.
Further comprising a vacuum control unit communicating with the striking space and adjusting the inside of the striking space to a vacuum atmosphere to reduce noises when hitting the piston.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170016233A KR101910986B1 (en) | 2017-02-06 | 2017-02-06 | Breaker Having Intermediate Transfer Unit |
PCT/KR2018/001573 WO2018143768A1 (en) | 2017-02-06 | 2018-02-06 | Breaker including intermediate transmission unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170016233A KR101910986B1 (en) | 2017-02-06 | 2017-02-06 | Breaker Having Intermediate Transfer Unit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170020831A true KR20170020831A (en) | 2017-02-24 |
KR101910986B1 KR101910986B1 (en) | 2019-01-04 |
Family
ID=58313649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020170016233A KR101910986B1 (en) | 2017-02-06 | 2017-02-06 | Breaker Having Intermediate Transfer Unit |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR101910986B1 (en) |
WO (1) | WO2018143768A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102266336B1 (en) * | 2020-09-14 | 2021-06-18 | 주식회사 맵 | Chisel for hydraulic breaker |
KR20210098815A (en) * | 2020-02-03 | 2021-08-11 | 김철수 | Noise Reduction Device for Driving |
KR102342305B1 (en) * | 2021-02-08 | 2021-12-24 | 주식회사 맵 | Chisel for hydraulic breaker |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102049846B1 (en) * | 2019-07-17 | 2019-11-28 | 주식회사 성은건설 | Bedrock crusher installed in cylinder type packer |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040079396A (en) * | 2004-08-26 | 2004-09-14 | 김철수 | A anti-noise breaker |
KR100630438B1 (en) * | 2005-04-29 | 2006-10-04 | 김형구 | Low - noise type hydraulic breaker |
KR20070047629A (en) * | 2005-11-02 | 2007-05-07 | 장인열처리(주) | Hydraulic breaker with a noise prevention bracket |
KR200439968Y1 (en) * | 2006-12-07 | 2008-05-15 | 김경철 | Low-noise type hydraulic breaker |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010037147A (en) * | 1999-10-14 | 2001-05-07 | 양재신 | Hydraulic breaker with a noise suppressor |
KR20090022475A (en) * | 2007-08-30 | 2009-03-04 | 영원중공업 주식회사 | Breaker for a excavator |
KR100906468B1 (en) * | 2008-09-24 | 2009-07-08 | 에스엠메탈(주) | Reduction noise type hydraulic hammer apparatus |
-
2017
- 2017-02-06 KR KR1020170016233A patent/KR101910986B1/en active IP Right Grant
-
2018
- 2018-02-06 WO PCT/KR2018/001573 patent/WO2018143768A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040079396A (en) * | 2004-08-26 | 2004-09-14 | 김철수 | A anti-noise breaker |
KR100630438B1 (en) * | 2005-04-29 | 2006-10-04 | 김형구 | Low - noise type hydraulic breaker |
KR20070047629A (en) * | 2005-11-02 | 2007-05-07 | 장인열처리(주) | Hydraulic breaker with a noise prevention bracket |
KR200439968Y1 (en) * | 2006-12-07 | 2008-05-15 | 김경철 | Low-noise type hydraulic breaker |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210098815A (en) * | 2020-02-03 | 2021-08-11 | 김철수 | Noise Reduction Device for Driving |
KR102266336B1 (en) * | 2020-09-14 | 2021-06-18 | 주식회사 맵 | Chisel for hydraulic breaker |
WO2022055219A1 (en) * | 2020-09-14 | 2022-03-17 | 주식회사 맵 | Hydraulic breaker chisel |
KR102342305B1 (en) * | 2021-02-08 | 2021-12-24 | 주식회사 맵 | Chisel for hydraulic breaker |
Also Published As
Publication number | Publication date |
---|---|
KR101910986B1 (en) | 2019-01-04 |
WO2018143768A1 (en) | 2018-08-09 |
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