JP3185932U - Crushing hammer - Google Patents

Abstract

Disclosed is a crushing hammer having a flushing system that is connected to a crushing hammer and supplies a flushing fluid to an object to be destroyed to prevent the formation of dust during destruction.
A crushing hammer 3 may be used for separating a stone 4 from a surface of a rock cave. In this embodiment, the crushing hammer 3 is mainly used in the horizontal direction. Accordingly, the protective plate 17 can be provided on the side surface of the protective casing that faces at least in use on the front end side of the protective casing 6. Further, the flushing passage 11, the joint 12 and the nozzle 13 belonging to the flushing system 8 may be arranged on the side surface of the protective casing 6 facing downward during use. In this case, these components are protected from falling stone.
[Selection] Figure 2

Description

  The present invention relates to a crushing hammer, and more particularly to a flushing system that is connected to a crushing hammer and supplies a flushing fluid to an object to be destroyed to prevent the formation of dust during destruction.

  The field of the invention is described in more detail in the preamble of the independent claims of the application.

  When drilling a tunnel in soft rock or breaking boulders into small pieces, a crushing hammer can be used to break the stone. The crushing hammer includes a striking device for transmitting a shock pulse to a tool that breaks the material by transmitting the shock pulse to the material to be broken. When the stone breaks, rock dust is formed simultaneously and diffuses into the work area. Rock dust is harmful to health and at the same time impedes visibility at the work site. For this reason, a flushing system for spraying water on an object to be destroyed has been developed. Disadvantages regarding the operation and strength of the components of the flushing system have been pointed out.

  An object of the present invention is to provide a new and improved crushing hammer.

  The crushing hammer of the present invention is a tubular member in which the flushing passage is disposed on the outer surface of the protective casing, and the outer surface of the flushing passage is inside the outer surface of the protective casing when viewed in the lateral direction. Thus, the flushing passage is protected by the protective casing.

  According to the technical idea of the present solution, one or more flushing passages of the flushing system are arranged outside the central part of the protective casing of the crushing hammer, ie on the side of the protective casing. However, the flushing passage is arranged in such a way that it is protected by the outer surface of the protective casing when viewed laterally.

  The advantage of this solution is that the flushing passage is protected by the outer surface of the protective casing from being recessed or impacted. If the flushing passage is outside the central part of the protective casing, it is not necessary to open the protective casing for maintenance or repair of the flushing system. Furthermore, any defect can be detected more easily. Furthermore, even if it is necessary to open the protective casing for maintenance or repair of the crushing hammer, the operation is made easier and faster because there is no flushing passage inside the protective casing. Overall, this solution enhances and facilitates maintenance of the flushing system.

  In one form of the invention, no components of the flushing system are included in the protective casing.

  In one form of the invention, a flushing conduit, which is a separate longitudinal rigid member, acts as a flushing passage.

  Thus, the flushing line is not permanently fixed with respect to the protective casing and is one easily detachable component of the flushing system. Therefore, the flushing line is not fixed to the protective casing by welding or a corresponding joint that requires breaking of the joint to open.

  In one form of the invention, the flushing line is fixed to the protective casing by its shape. At this time, the flushing line is simple and quick to assemble and disconnect.

  In one form of the invention, the flushing line is fixed by shape only at its end to the protective casing. In this case, the fixing of the flushing pipe is simple, and there are very few fixing members that receive external impact and force.

  In one form of the present invention, the flushing conduit is a straight, unbent pipe having a straight central axis. At this time, the flushing pipeline is as simple as possible in structure and shape.

  In one form of the invention, the flushing line is a thick pipe having a wall thickness of at least 8 mm. The flushing line can be made of standard structural steel, in which case it can be easily machined for the required joints. A thick pipe can withstand all the impacts and forces directed at it.

In one form of the present invention, internal screws are formed at both ends of the flushing conduit.
In one form of the invention, the nozzle is fixed as a separate member to the first end of the flushing line. The nozzle can be secured to the flushing line with a threaded joint. In this embodiment, the nozzle is easily replaceable. Furthermore, the structure is simple and strong. If necessary, the flushing line and nozzle could be removed and replaced as a unit. When fixing the nozzle to the flushing line, there is no need to form a fixing element for the base plate for fixing the nozzle.

  In one form of the invention, the longitudinal central axis of the nozzle is at a constant angle with respect to the longitudinal central axis of the flushing line. At this time, the direction of spraying the flushing medium through the nozzle can be changed by rotating the flushing conduit about the longitudinal central axis. The spray can be directed to the tip of the tool. This embodiment allows a very simple and reliable adjustment.

In one form of the invention, the nozzle is arranged to form a conical spray of the flushing medium that is ejected.
In one form of the invention, the flushing passage is a hose.

  In one form of the present invention, a lateral base plate having a space for a flushing passage is provided at the distal end portion of the protective casing, that is, the end portion on the tool side. The space is also formed with an opening extending to the front surface of the base plate so that the flushing medium is supplied through the base plate. The base plate could be made of wear resistant steel.

  In one form of this invention, the base plate is provided in the front-end | tip part of the protective casing, ie, the edge part by the side of the tool. The base plate extends transversely at least outside the side of the protective casing where the flushing system is provided. At this time, the protruding portion of the base plate forms a portion that protects the flushing system and the protective casing.

  In one form of the invention, the tip portion of the protective casing has a lateral base plate that extends at least on the flushing system side to the outside of the side surface of the protective casing. Furthermore, a guide member having a space for a flushing passage is provided at a corner between the upper surface of the protruding portion of the base plate and the side surface of the protective casing. The guide member supports the tip portion of the flushing passage and protects it from impact. The length of the guide member upward from the base plate can be dimensioned as needed.

  In one form of the present invention, the second end portion of the flushing passage is fixed to the protective casing by a fixing member that forms a portion protruding in the transverse direction of the protective casing. At this time, the fixing member protects the joint of the flushing pipe from being recessed in the transverse direction of the protective casing.

  In one form of the present invention, the fixing member of the flushing passage is a plate-like member that can be fixed to the side surface of the protective casing with a screw fastener.

  In one form of this invention, the pipe space extended in the longitudinal direction of a crushing hammer is provided in the side surface of the protective casing, and a flushing pipe line is arrange | positioned in this pipe space. The pipe space is at least partially open outward in its longitudinal direction. The pipe space may open outwardly throughout its longitudinal direction. The pipe space is then a groove on the outer surface of the protective casing.

  In one form of this invention, the side surface of a protective casing has a pipe space extended in the longitudinal direction of a crushing hammer, and a flushing conduit is arrange | positioned in the inside. The pipe space is formed by fixing the elongated protective members to the sides of the protective casing at a certain distance from each other. At this time, the gap between the protective members becomes a pipe space. The thickness of the protective member in the direction transverse to the protective casing is determined to be larger than the outer dimension of the flushing conduit, and thus the flushing conduit disposed in the gap is protected from being dented from the outside. The This type of pipe space could be formed without machining the protective casing. For example, it is quick and inexpensive to fix the protective member to the protective casing by welding.

In one form of the invention, the flushing system includes two parallel flushing lines.
In one form of the invention, the protective casing of the crushing hammer includes four sides. The components of the flushing system are disposed on the first side of the protective casing. Further, the second side surface opposite to the first side surface is provided with a protective plate at least at the tip thereof, and thus the second side surface is subjected to greater impact and stress than the other side surfaces. Designed to.

  In one form of the invention, the crushing hammer is intended for use to excavate a rock cave or tunnel. A crushing hammer can be used to excavate a rock cave when the stone is relatively soft. During drilling, the crushing hammer is mainly oriented horizontally. The operating position of the crushing hammer is designed such that when the crushing hammer is horizontal, the components of the flushing system are below the crushing hammer. At this time, the boulders separated from the bedrock and falling onto the hammer do not damage the flushing system. Furthermore, the opposite side of the protective casing, that is, the side that is the upper side of the protective casing during use, extends over the entire length of the protective casing or from the first end to the second end of the protective casing. The protective plate can be provided over at least a certain distance.

The embodiments disclosed above may be combined in various ways to provide a combination of features suitable for each particular purpose.
Some embodiments are described in more detail in the accompanying drawings.

FIG. 2 is a schematic side view of a crushing hammer placed on a boom of an excavator and used to destroy boulders. It is a schematic sectional drawing of the crushing hammer used in order to excavate a rock cave. It is a schematic sectional drawing of the arrangement | positioning for protecting a flushing channel | path. It is a schematic sectional drawing of the structure which protects the front-end | tip part of a flushing channel | path, and the nozzle in it using a guide member. It is a schematic side view of the structure for fixing the base part side edge part of a flushing channel | path to a protective casing, and protecting a hose coupling.

  For ease of understanding, the embodiment is illustrated in a simplified manner. In the drawings, the same reference numerals are assigned to similar components.

  In FIG. 1, an excavator 1 has a boom 2, which is provided with a crushing hammer 3 that can be used to break a stone 4 such as a boulder or rock. The crushing hammer 3 includes a striking device 5 arranged in a protective casing 6. The striking device 5 is used to send an impact pulse to a tool 7 that transmits the impact pulse to the object to be destroyed. At the same time, the crushing hammer 3 is pressed toward the stone 4. The tool 7 moves relative to the striking device 5 by a distance limited in its longitudinal direction. The tool 7 does not rotate around its longitudinal central axis.

  When a rock breaks, dust can be generated and spread to the surroundings, creating a health risk for the equipment operator. In order to prevent the problem of dust, the crushing hammer 3 is provided with a flushing system 8. The flushing system includes a pump 9 for pressurizing the flushing medium and supplying it to the crushing hammer 3 via one or more hoses 10. The crushing hammer 3 has one or more flushing passages 11 arranged on the outer surface of the protective casing 6. The hose 10 can be connected to the flushing passage 11 using a joint 12. A nozzle 13 is provided at the opposite end portion of the flushing passage 11, and the flushing medium is sprayed from the nozzle onto the object to be broken or the most distal portion of the tool 7. The flushing medium can be water or other liquid suitable for this purpose. The flushing spray 14 is indicated by a broken line in the figure. FIG. 1 also shows a base plate 15 provided at the tip of the protective casing 6, which is made of a wear-resistant steel that protects the components of the crushing hammer 3 and the flushing system 8 from being recessed. Can do. Furthermore, a control unit 16 that controls the operation of the flushing system 8 may be provided.

  FIG. 2 shows an alternative use of a crushing hammer to excavate a rock cave. That is, the crushing hammer 3 may be used for separating the stone material 4 from the surface of the rock cave. In this embodiment, the crushing hammer 3 is mainly used in the horizontal direction. Accordingly, the protective plate 17 can be provided on the side surface of the protective casing that faces at least in use on the front end side of the protective casing 6. Further, the flushing passage 11, the joint 12 and the nozzle 13 belonging to the flushing system 8 may be arranged on the side surface of the protective casing 6 facing downward during use. In this case, these components are protected from falling stone.

  Referring to FIG. 2, the protruding portion 18 can be provided in the base plate 15 on the flushing system 8 side. The base plate 15 has a front end portion of the flushing passage 11 and an opening 19 for the nozzle 13. Furthermore, a guide member 20 having a space for the flushing passage 11 can be provided at a corner between the upper surface of the base plate 15 and the side surface of the protective casing 6. The guide member 20 supports the tip portion of the flushing passage and protects the tip portion from impacts and other stresses. FIG. 2 further shows that a fixing member 21 such as a fixing flange for fixing the crushing hammer 3 to the boom of the work machine is provided on the proximal end side of the protective casing 6.

  In the form shown in FIG. 3, two parallel flushing passages 11 a and 11 b are arranged in the pipe space 22 provided on the outer surface of the side wall of the protective casing 6 to protect the flushing passage from being recessed. . The pipe space 22 is open and therefore does not accumulate any dirt or moisture therein. The pipe space 22 can be formed by attaching the elongate protective members 23a to 23c to the side surface of the protective casing 6 so as to be spaced apart from each other by a predetermined distance. At this time, a gap between the protective members 23 becomes a pipe space. By making the thickness of the protective member 23 in the direction crossing the protective casing 6 larger than the outer dimension of the flushing passage 11, the flushing conduit 11 arranged in the gap is embedded in the pipe space 22 by a distance H1. . This type of pipe space 22 could be formed without machining the protective casing 6.

  In FIG. 4, the flushing passage 11 is a thick pipe, and the nozzle 13 is fixed by a threaded joint 24 at the tip of the pipe. The guide member 20 and the base plate have openings 19 and 25 through which the flushing conduit 11 and the nozzle 13 are arranged. The opening portion 26 extending to the surface of the tip portion of the base plate 15 can be dimensioned such that it covers a portion of the nozzle and only the flushing spray 14 passes through the opening 25. At this time, the nozzle 13 is sufficiently protected from being recessed. Since the flushing passage 11 and the nozzle 13 are fixed at predetermined positions in the openings 19 and 25 depending on their shapes, it is not always necessary to fix the flushing passage 11 and the nozzle 13 at the tip portion. FIG. 4 also shows the passages 27, 28 through which the flushing medium is transported to form the spray 14.

  FIG. 5 shows a configuration for fixing the base end sides of the flushing passages 11 a and 11 b to the protective casing 6 and protecting the hose joint 12. The base end portion of the flushing passage 11 can be fixed to the outer surface of the protective casing 6 using a substantially plate-like fixing member 29. The thickness of the fixing member 29 in relation to the thickness of the flushing conduit 11 and the joint 12 can be dimensioned so that the fixing member 29 forms a portion protruding in the direction crossing the protective casing. Thus, the fixing member 29 forms a protective part for the flushing pipeline 11 and the joint 12. The fixing member 29 can be fixed to the protective casing by a detachable fixing element such as a bolt 30. The fixing member 29 holds the flushing passage 11 at a predetermined position in both the transverse direction and the longitudinal direction. The fixing member 29 may press the flushing pipeline 11 against the protective casing 6, or may simply prevent the flushing pipeline 11 from being detached from the pipe space 22.

The present application also discloses a method for supplying a flushing medium to an object to be destroyed. This method includes all or some of the following features.
Supply the flushing medium through the base plate at the tip of the protective casing.
Outside the central part of the protective casing, supply the flushing medium to the nozzles along the flushing line.
Use a crushing hammer in a substantially horizontal direction, with the flushing system located on the underside of the crushing hammer.
Conveying the flushing medium to a nozzle provided in a flushing line located in the pipe space on the outermost surface of the protective casing;

  In some cases, the features disclosed in this application may be used as is, regardless of other features. On the other hand, if desired, the features disclosed in this application may be combined to provide various combinations.

  The drawings and the related description are only intended to illustrate the technical idea of the present invention. The details of the invention may vary within the scope of the claims.

DESCRIPTION OF SYMBOLS 1 Excavator 2 Boom 3 Crushing hammer 4 Stone 5 Impact device 6 Protective casing 7 Tool 8 Flushing system 9 Pump 10 Hose 11 Flushing passage 12 Joint 13 Nozzle 14 Flushing spray 15 Base plate 16 Control unit 17 Protection plate 18 Protruding part 19 Opening 20 Guide member 21 Fixing member 22 Pipe space 23 Protection member 24 Screw joint 25 Opening portion 26 Opening portion 27 Passage 28 Passage 29 Fixing member 30 Bolt

Claims (8)

A striking device (5) for delivering a shock pulse to a tool (7) attachable to the crushing hammer (3);
A protective casing (6) in which a striking device (5) is arranged and in which a tool (7) can be arranged through its first end;
In a crushing hammer for breaking a stone material comprising at least one flushing passage (11) and at least one nozzle (13) and comprising a flushing system (8) for spraying a flushing liquid onto an object to be broken.
The flushing passage (11) is a tubular member arranged on the outer surface of the side wall of the protective casing (6);
The crushing hammer characterized in that the outer surface of the flushing passage (11) is inside the outer surface of the protective casing when viewed in the lateral direction, and the flushing passage (11) is protected by the protective casing. The side surface of the protective casing (6) is provided with a pipe space (22) extending in the longitudinal direction of the crushing hammer (3) that opens outwardly along at least part of the longitudinal direction of the pipe surface (22). And
At least one flushing passage (11) is disposed in the pipe space (22), and the flushing conduit is a separate member from the protective casing (6),
Crushing hammer according to claim 1, characterized in that the outer surface of the flushing passage (11) is inside the outer surface of the protective casing (6) defining the pipe space (22). The protective casing (6) comprises a side wall;
A flushing passage (11) is arranged on one side wall of the protective casing (6);
The first end of the protective casing (6) has a pace plate (15);
Crushing hammer according to claim 1 or 2, characterized in that the base plate (15) has a through hole (19) at the position of the flushing passage (11). A nozzle (13) is secured to the first end of the flushing passage (11);
The crushing hammer according to any one of claims 1 to 3, wherein the second end of the flushing passage (11) has a joint (12) for supplying a flushing medium. The crushing hammer (3) comprises a guide member (20) fixed to the corner between the base plate (15) and the protective casing (6) outside the protective casing,
The guide member (20) has an opening (25) in the same location as the through hole (19) on the base plate (15);
Crushing according to any one of claims 1 to 4, characterized in that the first end of the flushing passage (11) is arranged in the opening (25) of the guide member (20). hammer. A protective plate (17) is provided on one side surface of the protective casing (6) along at least the end portion on the tool (7) side,
Crushing hammer according to any one of the preceding claims, characterized in that the flushing system (8) is arranged on the opposite side of the protective casing (6) in relation to the protective plate (17). . The protective casing (6) includes a plurality of elongated protective members (23a-23c) disposed on the side surfaces thereof,
The protective members are spaced apart at a predetermined interval and oriented in the longitudinal direction of the crushing hammer, and the gap between the two protective members forms a pipe space (22) for the flushing passage (11). The crushing hammer according to any one of claims 1 to 6.   The flushing passage (11) can be rotated about its longitudinal central axis to guide the nozzle (13) and the flushing spray (14). The crushing hammer according to item.

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