WO2022055219A1 - Outil de coupe de concasseur hydraulique - Google Patents

Outil de coupe de concasseur hydraulique Download PDF

Info

Publication number
WO2022055219A1
WO2022055219A1 PCT/KR2021/012115 KR2021012115W WO2022055219A1 WO 2022055219 A1 WO2022055219 A1 WO 2022055219A1 KR 2021012115 W KR2021012115 W KR 2021012115W WO 2022055219 A1 WO2022055219 A1 WO 2022055219A1
Authority
WO
WIPO (PCT)
Prior art keywords
chisel
chisel body
hydraulic breaker
compressed
elastic
Prior art date
Application number
PCT/KR2021/012115
Other languages
English (en)
Korean (ko)
Inventor
정문교
Original Assignee
주식회사 맵
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 맵 filed Critical 주식회사 맵
Publication of WO2022055219A1 publication Critical patent/WO2022055219A1/fr

Links

Images

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00—Type of springs or dampers
    • F16F2238/02—Springs
    • F16F2238/026—Springs wound- or coil-like

Definitions

  • the present invention relates to a chisel for a hydraulic breaker that reduces vibration and shock repulsion generated in the process of being struck through a piston of a hydraulic breaker mounted on an excavator.
  • hydraulic breakers are equipment that is installed in construction machines such as excavators and loaders to crush rock or concrete, and when the cylinder is operated, the piston moves up and down and hits a chisel, which is a crushing tool, and the chisel is used in concrete and rock, etc. It crushes by applying an impact force.
  • the noise generated during the crushing operation using the hydraulic breaker is divided into a hitting noise generated when the piston hits the chisel and a crushing noise generated when the chisel crushes concrete and rock. Most of them are hitting noise, and the number varies depending on the size of the hydraulic breaker, but it is approximately 90 ⁇ 110dB.
  • the hydraulic cylinder 10 the piston 20 installed movably up and down inside the hydraulic cylinder 10 , and the lower part of the hydraulic cylinder 10 . It includes a front head 30 coupled to, and a chisel 40 installed on the front head 30 and struck by the piston 20 .
  • a gas chamber 12 is provided at the upper end of the hydraulic cylinder 10
  • a valve 14 is formed on the side surface of the hydraulic cylinder 10
  • hydraulic oil is temporarily stored in the lower side adjacent to the valve 14 as a kinetic energy source.
  • An accumulator 50 for use is formed.
  • the chisel 40 is supported by the upper bush 60 provided inside the middle of the front head 30 and the lower bush 70 coupled to the lower end of the front head 30 .
  • an insertion groove (not shown) is formed inside the lower bush 70, and a vibration-proof material (not shown) may be installed in the insertion groove.
  • the chisel 40 is struck by the piston 20 and vibrates by itself while transferring the kinetic energy of the piston 20 to the crushed object. That is, when the piston 20 descends and hits the top surface of the chisel 40, a stress wave accompanying elastic compression deformation is generated on the striking surface of the chisel 40 by the impact energy of the piston 20, this stress The wave is transmitted to the lower end along the body of the chisel 40 and finally reaches the contact surface with the object to be crushed, thereby performing the crushing operation.
  • the compressive stress wave is transmitted along the center line of the chisel 40 so that left-right or lateral vibration of the chisel 40 does not occur.
  • the respective center lines do not coincide, and the chisel 40 is eccentrically struck when hitting by the gap between the chisel 40 and the upper bush 60 and the lower bush 70 , and the chisel 40 .
  • the chisel 40 is deformed as well as the stress wave transmitted along the chisel 40 is in the form of a compressive stress wave accompanied by bending stress.
  • a part of the stress wave reaching the interface with the crushed object is diffused and absorbed into the crushed object, and the remaining part is reflected back and transmitted toward the striking surface with the piston 20, and then returns to the reverse direction again.
  • the stress waves are overlapped at the point where two stress waves propagating in different directions meet, and the amplitude of the stress waves becomes conspicuous at a specific frequency by such overlap, and vibration and noise are generated as well as the chisel (40).
  • vibration and noise are generated as well as the chisel (40).
  • An object of the present invention is to provide a chisel for a hydraulic breaker that reduces vibration and noise generated in the process of crushing by a piston and crushing objects.
  • a conical crushing part is provided at the lower end, and a tapered installation groove is provided on one side so that the diameter decreases from the upper side to the lower side.
  • a axial chisel body formed with an additional portion is installed in the installation groove to be inserted and disposed on the outside of the chisel body, and when the piston hits the chisel body, it is compressed in the chisel body direction by inertia and moves along the axial direction of the chisel body
  • a soft compressive elastic body having elasticity to absorb and reduce vibration, and molded and coupled to the inside of the compressive elastic body in an integral state so that it can be inserted and disposed on the outside of the chisel body
  • the piston elastically supports the compressed elastic body Coil type having elasticity to increase the absorption rate of vibration moving along the axial direction of the chisel body by increasing the compressive force that is compressed in the inner direction of the chisel body while the compressed elastic body is compressed in the inner direction of the chisel body when hitting the chisel body It provides a chisel for a hydraulic breaker comprising; an elastic spring of
  • the rim portion of the chisel body positioned above and below the installation groove portion may be formed with a separation prevention end protruding in the direction of the installation groove portion to catch the upper and lower portions of the compression elastic body.
  • a plurality of contact insertion grooves are formed to be spaced apart from each other at regular intervals in the vertical direction in the portion where the installation groove portion of the chisel body is formed, and the contact protrusion may be formed to protrude to be inserted corresponding to the contact insertion groove on the inner circumferential surface of the compressed elastic body.
  • the size of the inner diameter of the elastic spring may be formed to decrease from the upper end of the chisel body toward the lower end.
  • the contact insertion groove may be formed in a tapered shape such that the diameter of the chisel body decreases from the upper side to the lower side of the chisel body.
  • the compression elastic body and the elastic spring are inserted and installed in the installation groove of the chisel body.
  • the compression force is transmitted in the inner center direction to reduce the vibration of the chisel body, thereby reducing noise and increasing the striking force against the crushed object.
  • the impact repulsive force through the blow of the crushed object of the chisel body is also transmitted to the inner center direction of the chisel body as the compressive elastic body and the elastic spring are compressed by the inertial force, thereby reducing the vibration of the chisel body.
  • a stable striking force is generated while maintaining the position where the chisel body is hit by the piston again after that in its original position.
  • FIG. 1 is a schematic structural cross-sectional view of a conventional hydraulic breaker.
  • FIG. 2 is a perspective view of a chisel for a hydraulic breaker according to an embodiment of the present invention.
  • FIG. 3 is an enlarged perspective view of a portion 'A' shown in FIG. 2 .
  • FIG. 4 is an exploded perspective view of part 'A' shown in FIG. 2 .
  • FIG. 5 is a cross-sectional view of part 'A' shown in FIG. 3 .
  • FIG. 6 is a perspective view according to another embodiment of the compressive elastic body shown in FIG.
  • FIG. 7 is a perspective view according to another embodiment of the elastic spring shown in FIG.
  • the chisel 100 for a hydraulic breaker includes a chisel body 110 , a compression elastic body 120 , and an elastic spring 130 .
  • the chisel 100 for a hydraulic breaker operates to crush the shredding object while moving after being struck by a piston that reciprocates by hydraulic pressure inside the cylinder.
  • the hydraulic breaker has the same configuration as in the prior art, and a detailed description of the specific configuration of the hydraulic breaker is omitted here.
  • the chisel body 110 is a portion having an axial shape hit by a piston reciprocating in the vertical direction by hydraulic pressure.
  • a conical crushing part 111 is provided at the lower end of the chisel body 110 so as to be crushed when it collides with a crushed object while moving downward by the piston.
  • the chisel body 110 is formed to have a smaller outer diameter from the lower edge portion where the installation groove portion 112 is formed to the upper edge portion of the crushing unit 111 to be described later, and the compression elastic body 120 and the elastic spring to be described later.
  • the 130 can be easily inserted and installed on the outside of the chisel body 110 in which the installation groove 112 is formed.
  • an installation groove 112 is formed around the outer surface of the chisel body 110 at one side between the upper end and the lower end in the vertical direction of the chisel body 110 .
  • the installation groove 112 allows the compression elastic body 120 and the elastic spring 130 to be described later to be coupled and installed on one side of the chisel body 110 in a state of being caught on one side of the chisel body 110, so that the chisel body 110 by the piston is damaged.
  • the compressive elastic body 120 and the elastic spring 130 are connected and supported so that compression can be stably made, and after a certain time elapses, that is, the magnitude of the inertial force increases with the compressive elastic body 120 and the elastic spring ( At a point in time when the size of the elastic restoring force of 130) becomes smaller than the size of the elastic restoring force, the compressive elastic body 120 and the elastic spring 130 serve to support the elastic restoration to the original state.
  • the installation groove 112 of the chisel body 110 is formed in a tapered shape such that the diameter of the chisel body 110 decreases from the upper side to the lower side.
  • the compressive elastic body 120 and the elastic spring 130 according to inertia transmit the compressive force in the inner center direction of the chisel body 110 while compressing the elastic body ( 120) and stably reducing vibration through stable compression of the chisel body 110 by the elastic spring 130.
  • a separation prevention end 113 is formed to protrude in the direction of the installation groove 112 on the edge of the chisel body 110 positioned above and below the installation groove 112 .
  • the separation prevention end 113 is to engage the upper and lower portions of the compressed elastic body 120 inserted and disposed in the installation groove 112, and the compressed elastic body 120 and the elastic spring 130 are the chisel body 110. ) to prevent separation from the installation groove 112 when it is compressed in a state inserted and arranged on the outside or elastically restored from the compressed state to its original state.
  • a contact insertion groove 114 is formed around the outer surface of the chisel body 110 in which the installation groove portion 112 is formed.
  • a plurality of the contact insertion grooves 114 are formed to be spaced apart from each other at regular intervals in the vertical direction of the chisel body 110 , that is, the axial direction of the chisel body 110 .
  • the contact insertion groove 114 is formed in a tapered shape such that the diameter of the chisel body 110 decreases from the upper side to the lower side of the chisel body 110 .
  • the contact insertion groove 114 is formed in a tapered shape to increase the contact area with the inner circumferential surface of the compressed elastic body 120 and the compressed elastic body 120 is inserted into the chisel body 110 in a stable locking state. do.
  • the compression elastic body 120 and the elastic spring 130 are compressed according to the inertia of the chisel body 110 by the piston by the contact insertion groove 114, toward the inner center of the chisel body 110.
  • the compressive force is stably distributed and transmitted, and the compressive elastic body 120 also serves to support the inner circumferential surface of the compressed elastic body 120 so that it can be stably restored to its original state after compression.
  • the contact insertion groove 114 enables the corresponding insertion of the contact protrusion 121 formed on the inner circumferential surface of the compressed elastic body 120 , and the inner surface of the compressed elastic body 120 is on the outer surface of the chisel body 110 . Stable coupling is achieved in the inserted state.
  • the inner circumferential surface of the compressed elastic body 120 is on the outer circumferential surface of the chisel body 110
  • the compression force according to the inertia of the compressed elastic body 120 is distributed and transmitted toward the center of the chisel body 110, and the vibration of the chisel body 110 is to reduce what is happening.
  • the compressed elastic body 120 moves the piston downward by hydraulic pressure, and is compressed when the lower side of the piston is in contact with the chisel body 110 and hits the upper side of the chisel body 110. After a certain period of time, it is elastic again to its original state It is a part that absorbs the vibration of the chisel body 110 while being restored and allows the striking stress to be transmitted linearly in the axial direction of the chisel body 110 . That is, when the compressive elastic body 120 hits the chisel body 110 by the downward movement of the piston by hydraulic pressure, it is compressed toward the inner center of the chisel body 110 through an inertial force while transmitting the compressive force to the chisel body 110 .
  • the compressive elastic body 120 absorbs vibrations generated in the chisel body 110 when the chisel body 110 is struck with a piston so that the striking stress is transmitted linearly in the axial direction of the chisel body 110 to the crushed object. to increase striking power.
  • the compressed elastic body 120 is elastically restored to its original state after a certain period of time has elapsed in the compressed state, that is, when the magnitude of the inertial force generated by the impact of the piston becomes smaller than the magnitude of the elastic restoring force, the chisel The body 110 is reduced to a compressed state by the inertial force even with respect to the vibration transmitted from the lower end to the upper end while striking the object to be shredded.
  • the vibration transmitted from the lower end to the upper end of the chisel body 110 is reduced while the lower end of the chisel body 110 hits the crushed object, the distance between the outer surface of the chisel body 110 and the inner wall of the hydraulic breaker is reduced.
  • the compressive elastic body 120 is compressed by the inertial force when the chisel body 110 is struck with a piston so as to transmit the compressive force in the inner center direction of the chisel body 110 outside of the chisel body 110, more specifically is installed in the inserted state in the chisel body 110 so as to be inserted into the installation groove 112 .
  • the compressive elastic body 120 is compressed by the inertial force when the chisel body 110 is struck by the downward movement of the piston, and after a certain period of time, it is formed of soft rubber or synthetic resin having elasticity to elastically restore to its original state.
  • the compressed elastic body 120 is inserted into the chisel body 110 to be disposed in the installation groove portion 112, the installation groove portion 112 at the end of the chisel body 110 in a state in which it is spread by applying force to increase the inner diameter. ) to be inserted and disposed, when the force applied to increase the inner diameter is released, the chisel body 110 is coupled to the portion where the installation groove 112 is formed by its own elastic restoring force.
  • the compression elastic body 120 has a tube shape with both ends open so that it can be inserted and disposed on the outside of the chisel body 110 .
  • the inner circumferential surface of the compressed elastic body 120 is formed such that the inner diameter size decreases from the upper side to the lower side so that the installation groove 112 of the chisel body 110 can be inserted to correspond to the formed outer surface portion.
  • a plurality of contact projections 121 are formed to protrude to be inserted into the contact insertion groove 114 in which the installation groove portion 112 of the chisel body 110 is formed on the inner circumferential surface of the compressed elastic body 120, so that the compressed elastic body ( 120) and the elastic spring 130 during compression of the chisel body 110 in the inner central direction to be transmitted stably, as well as to the upper and lower sides of the installation groove 112 when the elastic restoration of the compression elastic body 120 is It prevents the compressive elastic body 120 from being separated from the installation groove 112 of the chisel body 110 while blocking the concentration of stress to the rim of the chisel body 110 .
  • a step-shaped multi-end portion 122 may be formed on the outer peripheral surface of the compressive elastic body 120 in a direction from the upper side to the lower side.
  • the multi-end portion 122 applies the compressive force of the compressive elastic body 120 to the chisel body 110 regardless of the position from the upper side to the lower side of the compressive elastic body 120 while varying the elastic force for the compressive elastic body 120 from the upper side to the lower side.
  • It enables stable dispersion transmission in the inward direction and enables stable fixation through the operator's grip or a separate jig means (not shown), while making it easy to insert and install on the outside of the chisel body 110 .
  • the elastic spring 130 is a portion that elastically supports the compression elastic body (120).
  • the elastic spring 130 moves the piston downward by hydraulic pressure and hits the chisel body 110 while the lower side of the piston comes into contact with the chisel body 110, it is compressed and returned to its original state after a certain period of time has elapsed. It is a part that can stably absorb the vibration generated from the blow of the chisel body 110 while being restored. That is, when the elastic spring 130 hits the chisel body 110 by the downward movement of the piston by hydraulic pressure, like the compressed elastic body 120 described above, the elastic spring 130 is compressed through an inertial force while compressing the chisel body 110 in the direction of the inner center of the compressive force.
  • the elastic spring 130 hits the chisel body 110 with a piston, the compression duration and compression force of the compressed elastic body 120 compressed in the inner center direction of the chisel body 110 are increased, and through this, the chisel body
  • the vibration absorption rate for the chisel body 110 is increased, and the striking stress on the chisel body 110 is a straight line parallel to the axial direction of the chisel body 110. It transmits and increases the striking power.
  • the elastic spring 130 is in the compressed state after a certain period of time has elapsed, that is, when the magnitude of the inertial force becomes smaller than the magnitude of the elastic restoring force, the elastic spring 130 returns to its original state when the chisel body 110 is hit.
  • the vibration transmitted from the lower end to the upper end of the chisel body 110 can be stably absorbed while compression is made from the lower side to the upper side by the inertial force.
  • the elastic spring 130 is compressed by the inertial force when the chisel body 110 is hit with a piston, and the chisel body ( The installation groove 112 of the 110) is installed in an inserted state inside the compressed elastic body 120 so as to be disposed in the formed portion. More preferably, the elastic spring 130 is formed in an integral state in a state where the compression elastic body 120 is placed on the mold when the compression elastic body 120 is molded by a mold so that it is coupled and disposed inside the compression elastic body 120 in an integral state.
  • the elastic spring 130 is moved to be inserted into the installation groove 112 from the end of the chisel body 110 in a state in which the inner diameter is increased by applying a force to increase the inner diameter together with the compressed elastic body 120, and then the inner diameter is increased.
  • the applied force is released, coupling is made to the portion where the installation groove 112 of the chisel body 110 is formed by its own elastic restoring force and the elastic restoring force of the compressed elastic body 120 .
  • the elastic spring 130 has a coil-type spring structure so that it can be inserted and disposed while enclosing the outer surface of the chisel body 110 . And, when the elastic spring 130 is inserted into the chisel body 110, the inner diameter of the chisel body 110 is formed to decrease from the upper side to the lower side. As such, the elastic spring 130 is formed to have a smaller inner diameter as it goes from the upper side to the lower side with respect to the axial direction of the chisel body 110, and through this, compression by the inertial force is uniformly and stably performed throughout from the upper end to the lower end.
  • the upper and lower ends of the elastic spring 130 may be provided with a locking ring portion 131 for connecting and fixing the edge portion of the elastic spring 130.
  • the engaging ring part 131 compresses the elastic spring 130 while preventing the upper and lower edge portions of the elastic spring 130 from expanding beyond a certain size when elastically restored from the compressed state of the elastic spring 130 .
  • the locking ring part 131 has a ring structure with one side open.
  • a through hole 132 is formed in one side of the engaging ring portion 131, and when the elastic spring 130 is integrally molded inside the compression elastic body 120, the compression elastic body 120 is the engaging ring portion 131. It enables it to be molded in a stable state even in the position of
  • the compressive elastic body 120 and the elastic spring 130 are compressed by the inertial force when the chisel body 110 is hit by the downward movement of the piston by hydraulic pressure. While absorbing the vibration of the chisel body 110, the striking stress transmitted through the chisel body 110 is moved in a concentrated state in a straight line parallel to the axial direction of the chisel body 110, increasing the striking force against the crushed object make it.
  • the compression elastic body 120 and the elastic spring 130 are transmitted from the lower end to the upper end of the chisel body 110 through the compressive force due to the inertia generated in the chisel body 110 when the crushed object of the chisel body 110 is struck.
  • the distance between the outer surface of the chisel body 110 and the inner wall of the hydraulic breaker is stably maintained to prevent damage due to contact between the outer surface of the chisel body 110 and the inner wall of the hydraulic breaker
  • a stable striking force is generated while the chisel body 110 maintains the position at which it is hit by the piston again afterward.
  • the specific gravity of the elastic spring 130 made of metal is higher than the specific gravity of the compression elastic body 120 and the elastic spring 130 having different specific gravity, that is, the elastic spring 130 having ductility is higher than that of the elastic spring 130.
  • the kinetic energy also increases. Therefore, when the piston strikes the chisel body 110, the different compressive forces of the compressive elastic body 120 and the elastic spring 130 by the inertial force are transmitted to the inner center of the chisel body 110, while the chisel body 110. Vibration absorption is made stable.
  • the chisel for a hydraulic breaker may include an auxiliary compression member (not shown) in the form of a ring having elasticity inserted outside the compression elastic body 120 .
  • This auxiliary compression member prevents the compression elastic body 120 from bursting while supporting the outer circumferential surface of the compressive elastic body 120 when the compressive elastic body 120 and the elastic spring 130 are compressed, and the compressive elastic body 120 is a chisel. It makes it possible to maintain a stable fixed state so as not to depart from the body 110 .
  • the auxiliary compression member stably transmits the compressive force in the inner direction of the chisel body 110 when the compression elastic body 120 and the elastic spring 130 are compressed while the chisel body 110 is hit by the piston.
  • the auxiliary compression member is provided on one side so that the compression elastic body 120 and the elastic spring 130 can be compressed and restored to their original state stably, as well as making it easy to install the compression elastic body 120 outside. It is preferable to have a ring structure in which an opening connecting the outside is formed.
  • Figure 8 (a) is a simulation result image of measuring the acceleration in the crushing part when the conventional chisel for a hydraulic breaker hits the iron plate
  • Figure 8 (b) is the crushing when the chisel for the hydraulic breaker of the present invention hits the iron plate.
  • This is an image of the simulation result obtained by measuring the acceleration in the part.
  • (a) and (b) of Fig. 8 shows the results of measuring the acceleration at the crushing part of the chisel when a 500t steel plate fixed with a 14ton excavator is struck with an inclination of 1 degree in the Z-axis.
  • the chisel 100 for a hydraulic breaker according to an embodiment of the present invention As shown in a), in the conventional chisel for a hydraulic breaker, a maximum acceleration value of 50,000 m/sec 2 is measured, and the chisel 100 for a hydraulic breaker according to an embodiment of the present invention as shown in FIG.
  • the maximum acceleration measured by the crushing unit 111 has an acceleration value reduced by about 40% to 30,000 m/sec 2 .
  • the chisel 100 for a hydraulic breaker according to an embodiment is a compressive elastic body 120 and elasticity at the time of striking. It can be seen that the compression force according to the inertia of the spring 130 is transmitted to the chisel body 110 to reduce vibration and noise.
  • the compressive elastic body 120 and the elastic spring 130 are compressed by the inertial force and apply a compressive force toward the inner center of the chisel body 110, thereby reducing the vibration of the chisel body 110.
  • the vibration of the chisel body 110 is reduced, even when the chisel body 110 moves upward by the impact repulsive force after hitting the crushed object, the distance between the outer surface of the chisel body 110 and the inner wall of the hydraulic breaker is stably maintained to keep the chisel body
  • the chisel body 110 maintains the position hit by the piston again in the correct position, and then a stable striking force by the piston is generated. do.
  • the compression elastic body 120 and the elastic spring 130 are inserted and installed in the installation groove 112 of the chisel body 110, and the chisel body 110 through the piston.
  • the compressive elastic body 120 and the elastic spring 130 are compressed by the inertial force, and the compressive force is transmitted to the inner center direction of the chisel body 110 to reduce the vibration of the chisel body 110. Bar noise reduction and to increase the striking force against the crushed object.
  • the chisel body 110 transmits the compressive force to the inner center direction of the chisel body 110 while the compressive elastic body 120 and the elastic spring 130 are compressed by the inertial force in the impact repulsive force through the blow of the crushed object of the chisel body 110 .
  • the vibration reduction of 110 is made, a stable striking force is generated while reducing noise and maintaining the position where the chisel body 110 is hit by the piston again afterward at the correct position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

La présente invention concerne un outil de coupe de concasseur hydraulique, qui est frappé par un piston prévu pour effectuer un mouvement de va-et-vient à l'intérieur d'un concasseur hydraulique, et comprend : un corps d'outil de coupe en forme d'arbre ayant une partie de broyage conique disposée à son extrémité inférieure, et ayant, sur un de ses côtés, une partie de rainure de montage effilée de telle sorte que son diamètre diminue progressivement de son côté supérieur vers son côté inférieur ; un corps élastique de compression, qui est constitué d'un matériau souple, est disposé dans la partie de rainure de montage de façon à être inséré dans et disposé sur le côté extérieur du corps d'outil de coupe, et absorbe et réduit les vibrations qui se déplacent dans la direction axiale du corps d'outil de coupe, tout en étant comprimé vers le côté intérieur du corps d'outil de coupe par inertie lorsque le piston frappe le corps d'outil de coupe ; et un ressort élastique de type bobine qui est couplé à et disposé dans la partie interne du corps élastique de compression de façon à être inséré dans et disposé sur le côté externe du corps d'outil de coupe, ce qui permet de supporter élastiquement le corps élastique de compression, et qui augmente la force de compression, générée à partir de la compression du corps élastique de compression vers le côté interne du corps d'outil de coupe, de manière à augmenter le taux d'absorption de vibrations qui se déplace dans la direction axiale du corps d'outil de coupe, tout en étant comprimé vers le côté interne du corps d'outil de coupe par inertie lorsque le piston frappe le corps d'outil de coupe.
PCT/KR2021/012115 2020-09-14 2021-09-07 Outil de coupe de concasseur hydraulique WO2022055219A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2020-0117663 2020-09-14
KR1020200117663A KR102266336B1 (ko) 2020-09-14 2020-09-14 유압 브레이커용 치즐

Publications (1)

Publication Number Publication Date
WO2022055219A1 true WO2022055219A1 (fr) 2022-03-17

Family

ID=76623525

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/012115 WO2022055219A1 (fr) 2020-09-14 2021-09-07 Outil de coupe de concasseur hydraulique

Country Status (2)

Country Link
KR (1) KR102266336B1 (fr)
WO (1) WO2022055219A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102266336B1 (ko) * 2020-09-14 2021-06-18 주식회사 맵 유압 브레이커용 치즐
KR102331165B1 (ko) * 2021-06-16 2021-12-01 주식회사 맵 유압브레이커용 피스톤
KR200496287Y1 (ko) * 2022-02-09 2022-12-21 주식회사 테라이엔지 저소음형 중장비 브레이커

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009062700A (ja) * 2007-09-05 2009-03-26 Kazuma Tanaka 油圧駆動式破砕機における打撃騒音と振動音の低減装置。
KR20090119614A (ko) * 2008-05-16 2009-11-19 지성중공업 주식회사 공타충격 흡수구조를 구비한 유압브레이커
KR20170020831A (ko) * 2017-02-06 2017-02-24 (주) 대동이엔지 중간전달유닛을 구비한 브레이커
KR101804790B1 (ko) * 2016-03-15 2017-12-05 (주)대동이엔지 유압 브레이커
KR102266336B1 (ko) * 2020-09-14 2021-06-18 주식회사 맵 유압 브레이커용 치즐

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009062700A (ja) * 2007-09-05 2009-03-26 Kazuma Tanaka 油圧駆動式破砕機における打撃騒音と振動音の低減装置。
KR20090119614A (ko) * 2008-05-16 2009-11-19 지성중공업 주식회사 공타충격 흡수구조를 구비한 유압브레이커
KR101804790B1 (ko) * 2016-03-15 2017-12-05 (주)대동이엔지 유압 브레이커
KR20170020831A (ko) * 2017-02-06 2017-02-24 (주) 대동이엔지 중간전달유닛을 구비한 브레이커
KR102266336B1 (ko) * 2020-09-14 2021-06-18 주식회사 맵 유압 브레이커용 치즐

Also Published As

Publication number Publication date
KR102266336B1 (ko) 2021-06-18

Similar Documents

Publication Publication Date Title
WO2022055219A1 (fr) Outil de coupe de concasseur hydraulique
US8181716B2 (en) Breaking machine shock absorbing system
US5363835A (en) Nose block assembly
WO2021015364A1 (fr) Piston de marteau hydraulique
KR102035799B1 (ko) 유압브레이커용 피스톤
US9278443B2 (en) Breaking machine shock absorbing apparatus
WO2022169070A1 (fr) Burin de concasseur hydraulique
KR100819471B1 (ko) 브레이커의 방진장치
CN117803035A (zh) 一种可增强水平及倾斜打击力的高频破碎锤
KR20220102377A (ko) 유압 브레이커용 치즐
KR20210144399A (ko) 유압브레이커용 피스톤
KR102226579B1 (ko) 저소음형 유압 브레이커
KR200448270Y1 (ko) 굴삭기용 브레이커 및 브레이커의 차음 방진판
KR102331165B1 (ko) 유압브레이커용 피스톤
KR200381252Y1 (ko) 유압브레이커의 완충형 댐퍼구조
KR100776574B1 (ko) 브레이커의 방진장치
KR100335004B1 (ko) 브레이커용 저소음 치즐
KR20080098285A (ko) 치즐로의 소음 노출이 저감될 수 있는 유압 브레이커
KR20030085780A (ko) 브레이커
KR200341687Y1 (ko) 브레이커의 방진장치
KR0120778Y1 (ko) 유압 브레이커 타격 장치의 방진판 구조
KR200343253Y1 (ko) 브레이커의 방진장치
KR200202176Y1 (ko) 공유압식 브레이커의 치즐케이스 설치구조
KR19980027891U (ko) 충격 운동 공구의 완충 장치
KR20010037147A (ko) 소음저감장치가 구비된 유압브레이커

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21867085

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21867085

Country of ref document: EP

Kind code of ref document: A1