JP6096275B2 - Breaker chisel assembly with multiple chisel rods - Google Patents

Description

  The present invention relates to a breaker chisel assembly having a plurality of chisel bars, and more specifically, when crushing a rock mass or a concrete structure, a plurality of chisel bars are used to secure a plurality of surfaces of the rock mass or the concrete structure, The present invention relates to a breaker chisel assembly having a plurality of chisel bars that prevent rocks from flying and the chisel bars from slipping, and that allow rocks or concrete structures to be finely broken at once.

  Generally, when crushing a concrete structure or a rock mass, a blasting method or a crushing method is mainly used. However, the blasting method is expensive and dangerous and is not used. Therefore, the method of crushing mainly using a breaker is used.

  The breaker (Hydraulic Breaker) is installed in construction equipment such as excavators and loaders, and is widely used for crushing concrete and bedrock. At this time, the chisel rod, which is a crushing tool, is struck while raising and lowering the piston with the hydraulic pressure of the cylinder, and the concrete and the rock mass are crushed by the striking force.

  Such a breaker transmits impact energy to the object by the reciprocating motion of the chisel bar to crush the hit object.

  Therefore, in the case of a chisel bar that directly strikes an object, it needs to be frequently replaced. As a result, in order to replace a worn or damaged chisel, there is a complicated problem that the main body must be disassembled.

  In addition, the conventional breaker has only a single chisel bar. When crushing a rock or a concrete structure through a single chisel bar, in order to crush the bedrock to a desired size, the bedrock or concrete is taken several times. There is a disadvantage that the structure must be crushed.

  Also, if the surface is smooth or the surface is inclined, the end of the chisel bar of the breaker slips, making it difficult to crush, and the rock mass flies sideways and always carries a risk of accidents. ing.

  The present invention has been devised in view of the above problems, and a first object of the present invention is to provide a surface of a rock or concrete structure with a plurality of chisel bars when crushing the rock or concrete structure. Breaker chisel assembly with multiple chisel rods to prevent rocks flying and chisel rods from slipping, and to allow rock or concrete structures to be crushed finely at once Is to provide.

  The second object of the present invention is to allow replacement of a damaged chisel rod when replacing the chisel rod and to be used in place of a chisel rod used in a general hand rock drill. It is an object of the present invention to provide a breaker chisel assembly having a plurality of chisel bars that can save costs.

  A third object of the present invention is to connect a plurality of chisel bars to a chisel body and to disperse the striking force on the rock or concrete structure, thereby extending the life of the chisel bars. It is an object of the present invention to provide a breaker chisel assembly having a bar.

  According to a feature of the present invention for achieving the above-mentioned object, the first invention relates to a breaker chisel assembly having a plurality of chisel rods. For this purpose, a back head provided with a gas chamber; A cylinder that is coupled to the lower part of the back head and includes a piston that is lifted by hydraulic pressure, and a front head that is coupled to the lower part of the cylinder and includes a chisel assembly that crushes the rock mass by striking the piston; In the circuit breaker, the chisel assembly includes a chisel body having a stopper pin coupled to an outer peripheral surface so as to return upward after the piston is hit, and a lower portion of the front head coupled to the chisel body. A plurality of chisel bars that are exposed at the center of the chisel body. A main chisel rod, has a relatively smaller diameter than the main chisel rod, characterized in that it is composed of a plurality of auxiliary chisel rod disposed around the main chisel rod.

  According to a second aspect of the present invention, in the first aspect, the chisel body further includes a through hole formed so as to vertically penetrate the chisel body so that a plurality of chisel rods can be coupled to each other. Preferably, a chisel head is formed at the upper end of the bar to form a step for preventing the chisel bar from being detached.

  According to a third aspect of the present invention, in the second aspect, the chisel body further includes a plurality of vertical through holes so that the main chisel rod and the auxiliary chisel rod can be connected to each other. It is preferable that a step for forming a chisel head at the upper ends of the main chisel rod and the auxiliary chisel rod to prevent the chisel rod from being detached is formed.

  According to a fourth aspect, in the first aspect, the length of the auxiliary chisel bar is preferably shorter than the main chisel bar.

  In a fifth aspect based on the first aspect, the length of the main chisel rod is preferably shorter than that of the auxiliary chisel rod.

  According to a sixth invention, in the first invention, the main chisel bar is integrally extended to a lower portion of the chisel body, and the chisel body is formed of a plurality of vertical parts so that the auxiliary chisel bar can be coupled therethrough. It is preferable that a through hole is further included, and a step for forming the chisel head at the upper end of the auxiliary chisel bar to prevent the auxiliary chisel bar from being detached is formed inside each through hole.

  The chisel assembly for a breaker having a plurality of chisel bars according to the present invention has a structure in which a plurality of chisel bars secure a plurality of surfaces of a rock mass or a concrete structure when the rock mass or concrete structure is crushed, and the rock mass flies. It is possible to prevent the bars from slipping and to reduce the operating cost by finely crushing the bedrock or the concrete structure at a time.

  In addition, when replacing a damaged chisel bar, not only is it possible to replace the chisel bar, but it can also be used in place of the chisel bar used in ordinary hand rock drills to save costs. There is an effect that can be made.

  Further, by combining a plurality of chisel bars with the chisel body and dispersing the striking force on the rock or the concrete structure, there is an effect that the life of the chisel bars can be extended.

1 is a perspective view of a breaker to which a breaker chisel assembly having a plurality of chisel bars according to a first embodiment of the present invention is coupled; FIG. It is a fragmentary sectional view of FIG. FIG. 2 is an exploded perspective view of a breaker chisel assembly having a plurality of chisel bars separated by the breaker of FIG. 1. 6 is a partial cross-sectional view of a breaker to which a breaker chisel assembly having a plurality of chisel bars according to a second embodiment of the present invention is coupled; FIG. FIG. 5 is a partial cross-sectional view of a breaker to which a breaker chisel assembly having a plurality of chisel rods according to another example of FIG. 4 is coupled; FIG. 6 is a partial cross-sectional view of a breaker to which a breaker chisel assembly having a plurality of chisel bars according to a third embodiment of the present invention is coupled;

  Hereinafter, a breaker chisel assembly having a plurality of chisel bars according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a breaker to which a chisel assembly for a breaker having a plurality of chisel bars according to a first embodiment of the present invention is coupled, FIG. 2 is a partial cross-sectional view of FIG. 1, and FIG. FIG. 5 is an exploded perspective view of a breaker chisel assembly having a plurality of chisel bars separated by a breaker of FIG.

  As shown in FIG. 1 to FIG. 3, the present invention secures a plurality of surfaces of a rock mass or a concrete structure with a plurality of chisel bars when crushing the rock mass or a concrete structure. The present invention relates to a breaker chisel assembly 100 having a plurality of chisel bars that prevent slipping and allow rock or concrete structures to be finely broken at once.

  Prior to describing the present invention, the present invention is a structure built in the front head 230 of the breaker 200.

  The breaker 200 is connected to a back head 210 in which a gas chamber is provided, a cylinder 220 that is connected to a lower portion of the back head 210 and includes a piston 221 that moves up and down by hydraulic pressure, and a lower portion of the cylinder 220. The front head 230 has a built-in chisel assembly 100 that crushes the rock and concrete structure by striking the piston 221.

  In such a configuration, when the piston 221 in the cylinder 220 is lifted by the hydraulic pressure drawn or drawn through the cylinder 220, the gas filled in the gas chamber of the back head 210 is compressed and expanded by the force of expansion. Descends and strikes the chisel assembly 100. This results in the chisel bar 120 coupled to the chisel assembly 100 being configured to break up the rock mass or concrete structure.

  Here, the breaker chisel assembly 100 having a plurality of chisel rods according to the present invention is mainly composed of two parts. This is a chisel body 110 having a stopper pin 114 coupled to its outer peripheral surface so that it is returned upward by a pressing force after striking the piston 221, and is coupled to the chisel body 110 and exposed to the lower portion of the front head 230. And a plurality of chisel bars 120.

  The chisel body 110 is arranged in a striking chamber 231 formed on the front head 230 at the upper end, and abuts against the lower end of the piston 221 in the cylinder 220. Thereby, it is the structure which descend | falls by the impact of piston 221 and can crush a rock mass and a concrete structure.

  The chisel body 110 has a guide groove 113 formed on the outer peripheral surface. The guide groove 113 is configured such that the stopper pin 114 fixed to the front head 230 can move the chisel body 110 downward by the length of the guide groove 113 by striking the piston 221.

  At the same time, a plurality of chisel bars 120 are coupled to the chisel body 110 and exposed to the lower portion of the front head 230 so that the rock mass or the concrete structure can be crushed.

  At this time, a plurality of through holes 111 are vertically formed through the chisel body 110 so that a plurality of chisel rods 120 can be coupled. Here, a step 112 is formed in each through hole 111 to prevent the chisel rod 120 from being detached by forming a chisel head H at the upper end of the chisel rod 120.

  In the above structure, the chisel head H is exposed at the upper end of the chisel body 110, and the chisel body 110 and the plurality of chisel rods 120 are hit by the impact of the piston 221, so that the bedrock or the concrete structure can be crushed. This is the configuration.

  At the same time, when any one of the plurality of chisel bars 120 is worn or damaged, only the chisel bars 120 can be individually replaced.

  In addition, each of the chisel bars 120 is configured with a diameter that can be replaced with a chisel bar used in a hand rock drill, thereby increasing compatibility with the hand rock drill.

  In addition, the configuration of the first embodiment is a structure in which the hitting force can be distributed to the rock mass or the concrete structure by using a plurality of chisel bars 120 and the life of each chisel bar 120 can be extended. is there.

  FIG. 4 is a cross-sectional view of a breaker combined with a chisel assembly for a breaker having a plurality of chisel bars according to a second embodiment of the present invention, and FIG. 5 is a breaker having a plurality of chisel bars according to another example of FIG. FIG.

  First, as shown in FIG. 4, the second embodiment includes the first embodiment. However, the chisel rod 120 has a main chisel rod 121 disposed in the center of the chisel body 110 and a plurality of auxiliary chiseles arranged around the main chisel rod 121 and having a relatively smaller diameter than the main chisel rod 121. And a rod 122.

  The chisel body 110 further includes a plurality of vertical through holes 111 so that the main chisel rod 121 and the auxiliary chisel rod 122 can be connected to each other. The chisel head H is formed on the upper ends of the rod 121 and the auxiliary chisel rod 122 to form a step 112 for preventing separation.

  Such a structure is the same as in the first embodiment, by exposing the chisel head H to the upper end of the chisel body 110, and by striking the piston 221, a plurality of auxiliary chisel bars 122 and a single main chisel bar together with the chisel body 110. In this configuration, 121 is continuously hit. In the second embodiment, when the auxiliary chisel rod 122 and the main chisel rod 121 are worn or damaged, only the chisel rods 121 and 122 can be individually replaced.

  In the second embodiment, the length of the auxiliary chisel bar 122 exposed at the lower portion of the front head 230 is relatively shorter than the main chisel bar 121.

  In such a structure, first, the rock mass or concrete structure is primarily crushed through the main chisel rod 121 having a large diameter, and then the rock mass or concrete structure is secondarily crushed continuously through the auxiliary chisel rod 122. It is a structure that can be used. Thus, the bedrock or concrete structure can be finely crushed to a desired size in one operation.

  In addition, in the breaker chisel assembly 100 having a plurality of chisel rods according to the present invention, the lengths of the main chisel rod 121 and the auxiliary chisel rod 122 may be the same as shown in FIG. Of course, as shown in FIG. 5B, the length of the main chisel rod 121 can be made relatively shorter than the auxiliary chisel rod 122.

  FIG. 6 is a partial cross-sectional view of a breaker to which a breaker chisel assembly having a plurality of chisel bars according to a third embodiment of the present invention is coupled.

  As shown in FIG. 6, the third embodiment includes the second embodiment. However, the main chisel bar 121 is integrally extended to the lower part of the chisel body 110.

  Similar to the second embodiment, the auxiliary chisel rod 122 has a configuration in which a chisel head H is formed at a step formed in the chisel body 110.

  Such a structure is a structure in which only the main chisel rod 121 with relatively little damage is integrated with the chisel body 110, and has an advantage that the structure of the chisel assembly 100 is simplified and easy to assemble.

  As described above, the breaker chisel assembly having a plurality of chisel rods according to the present invention can be constructed by integrating the main chisel rod and the auxiliary chisel rod into the chisel body.

  Further, the present invention can be applied to a hand rock drill and can be used not only for hydraulics but also for pneumatics.

  As described above, the rights of the present invention are not limited to the embodiments described above, but are defined by the scope of the claims, and those having ordinary knowledge in the technical field to which the present invention belongs can be claimed. It is obvious that various modifications and adaptations can be made within the scope of the rights described in the above.

Claims (6)

A back head provided with a gas chamber, a cylinder connected to a lower part of the back head and including a piston that moves up and down by hydraulic pressure, and a lower part of the cylinder connected to a lower part of the cylinder, and a rock mass and a concrete structure are moved by striking the piston. In a breaker composed of a front head with a built-in chisel assembly to be crushed,
The chisel assembly includes a chisel body having a stopper pin coupled to an outer peripheral surface so that the chisel assembly is returned upward after striking the piston, and a plurality of chizels coupled to the chisel body and exposed to a lower portion of the front head. Composed of sticks and
The chisel rod is composed of a main chisel rod disposed in the center of the chisel body and a plurality of auxiliary chisel rods having a smaller diameter than the main chisel rod and disposed around the main chisel rod. A breaker chisel assembly having a plurality of chisel rods. The chisel body further includes a through hole formed so as to penetrate vertically so that a plurality of chisel rods can be coupled,
2. The plurality of chisel rods according to claim 1, wherein a chisel head is formed at an upper end of the chisel rod in each through hole to form a step for preventing the chisel rod from being detached. Chisel assembly for breaker. The chisel body further includes a plurality of vertical through holes so that the main chisel rod and the auxiliary chisel rod can be coupled to each other.
3. The step according to claim 2, wherein a chisel head is formed at the upper ends of the main chisel rod and the auxiliary chisel rod inside each through-hole to prevent the chisel rod from being detached. Breaker chisel assembly with multiple chisel rods.   The breaker chisel assembly having a plurality of chisel rods according to claim 1, wherein the auxiliary chisel rod has a length shorter than that of the main chisel rod.   The breaker chisel assembly having a plurality of chisel rods according to claim 1, wherein a length of the main chisel rod is relatively shorter than that of the auxiliary chisel rod. The main chisel bar is integrally extended to the lower part of the chisel body,
The chisel body further includes a plurality of vertical through holes so that the auxiliary chisel rod can be coupled therethrough,
The plurality of chisel bars according to claim 1, wherein a chisel head is formed at an upper end of the auxiliary chisel bar in each through hole to form a step for preventing the auxiliary chisel bar from being detached. Breaker chisel assembly.

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