• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Percussion set. It comprises at least one rejón (1) with a longitudinal axis (2). It also comprises a hydraulic hammer (4) with a hammer (7) that moves between a retracted position and an extended position in which it hits the rejón (2), causing the latter to move in a direction coinciding with that of movement of the hammer (7) and with its longitudinal axis. It also comprises a bar mechanism with at least two pairs of bars (8). The bars (8) of each pair are joined to each other, by means of axes (10, 11) that cross the rejón (1) and the frame (5) of the hydraulic hammer (4) and that allow to limit the linear movement of the rejón (1) with respect to the hydraulic hammer (4). The bar mechanism can also comprise lateral stops (11) configured to limit the movement of the rejón (1) in the direction of its longitudinal axis (2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2684509A2
    申请号:ES201730523
    申请日:2017-03-31
    公开日:2018-10-03
    发明作者:Heriberto ARRIOLA-BENGOA IBABE；Sergio Tejedor Moreno；Rubén Barrero Alzola
    申请人:Talleres Betono S A；Talleres Betono Sa；
    IPC主号:
    专利说明:

    OBJECT OF THE INVENTION
    The present invention falls within the technical field of percussion tools.
    More specifically, a percussion assembly with a hydraulic hammer, a grille operated by said hydraulic hammer and a bar mechanism that links the grille to the hydraulic hammer and limits its movement is described. The mechanism of bars guarantees that the striking of the rejón to the ground is carried out on the same axis as the striking of the hydraulic hammer to the rejón. BACKGROUND OF THE INVENTION
    In the state of the art the use of percussion movements to transmit energy to a tool and thus achieve the breaking of stones, concrete or other elements is widely used.
    Hydraulic hammers are implements that are used in backhoes (machine with articulated arm) for public works. Hydraulic hammers use this type of percussion movements. Some of the elements that generally comprise are a frame, a head, a cylinder, an accumulator, a distributor, a percussor, a body and a pica.
    The ripper are also implements that use the backhoes and allow to transform movements of the arm of the machine for the breaking of surfaces. Conventional ripper are rigid and static elements that serve to scarify or tear the ground. Carrier machines use as a work movement a movement known in the sector as a “rippeo” movement, which is horizontal. This type of movement is prohibited in the use of hydraulic hammers because it can damage the pit.


    That is to say, the most important technical problem associated with hydraulic hammers is that during the striking operation, the force of the backhoe machine arm cannot be helped since this can cause the breakage of the hydraulic hammer spike.
    The leverage operations include the introduction of the ripper into the rock and then, stretch with the arm of the backhoe and pry the created crevice. In this way it is possible to increase said crack. This causes an increase in flexural stress on the ripper. In cases where a hydraulic hammer is used, it is the spike that has to be introduced into the rock and if it is stretched with the arm it increases the flexural stress causing the breakage of said spike. This is why, during his work, the hydraulic hammer can only act as a firing pin. DESCRIPTION OF THE INVENTION
    The present invention describes a percussion assembly comprising a recess driven by a hydraulic hammer to which it is linked through a bar mechanism that limits the movement of the repository and specially designed for use in backhoes.
    In the working position, the grating is supported on the ground and the machine on which the firing assembly is mounted (for example an excavator) pushes the grating against the ground at all times through the hydraulic hammer.
    The hydraulic hammer comprises a percussor that moves with a linear displacement that occurs in the longitudinal direction of the longitudinal axis of the grating itself. When the drummer hits the grid it transmits a shock wave. This shock wave is transmitted from the percussor to the ground creating a crack.
    After a certain number of strokes of the drummer on the grate, the crack in the ground increases in the area of contact with the grate. In turn, the leverage effect is performed on the crack, causing the rock to break.


    With this it is achieved that the rock breaks are faster and it is possible to increase the production in high proportions of the equipment in comparison with the production of a conventional hydraulic hammer. The hydraulic hammers of the state of the art have to wait for the pit to penetrate the rock until the fracture of the rock is achieved and, however, with the proposed percussion set, with a smaller penetration and the leverage force causes a further break Rock fast.
    When the operator changes the place of work, he again puts pressure with the machine on the grating, and therefore the grating rests on the ground. At this time the drum set is again in working position, ready to be used again.
    The grid must be given freedom and guided in the direction of hitting the percussor so that the shock wave is transmitted as completely as possible to the ground. That is to say, there can be no restrictions in the form of a knot or union in the direction of movement of the percussor since, in this case, part of the energy of the shock wave would be lost in said joint element, impacting on the excavator machine in the that the percussion set is placed and not on the ground through the grate.
    Thus, to achieve the desired technical effect (of transmission of the shock wave from the hydraulic hammer, through the grille, to the ground), the percussion assembly comprises two key elements. These elements are, the grate, and the mechanism of articulated bars.
    To ensure that the shock wave is transmitted as completely as possible to the ground, the grating is connected to the hydraulic hammer with a mechanism of articulated bars (articulated quadrilateral) causing the hydraulic hammer percursor to always strike parallel to the longitudinal axis of the grating. In this way, energy losses from the shock wave are avoided in movements that are not purely transmission (i.e., movements that are not purely linear). The bar mechanism establishes the linkage of the reel and the hydraulic hammer through the upper lateral projection of the recess and the hydraulic hammer frame. The bar mechanism comprises two pairs of bars. The bars of each pair of bars are joined together at least by a first axis that crosses the projection


    upper side of the grate and through a second shaft that crosses the hydraulic hammer housing. Said axes comprise bearings to allow articulated movement of the axis with respect to the lateral projection of the grille or to allow articulated movement of the axis with respect to the hydraulic hammer frame respectively.
    In a preferred embodiment, the articulated bar mechanism comprises lateral stops, which link the bars of each pair of bars together, and limit the run of the grid. When the movement of the grating occurs, if it is too long, the lateral stops come into contact with the hydraulic hammer frame, and thus the movement of the grating is limited.
    That is, in the present invention the tilt movement of the grating is penalized. The position of the grating is guided with respect to the hydraulic hammer and movements that are not perpendicular to the striking plane of the percusor to the grating and of the latter to the ground in the direction of its longitudinal axis are avoided.
    Thus, it is possible to move from a typical tilting movement of the grilles of the state of the art that are used in combination with hydraulic hammers, to a direct transmission of the shock wave in the linear direction of travel of the percusor.
    Based on this, the present invention allows leverage operations to be carried out and allows the use of the strength of the carrier to break and drag rock, concrete, etc. materials. So the percussion set can work like a conventional ripper but adding the power of a hydraulic hammer.
    The percussion set does not include energy accumulators (elements that are generally used to receive and / or dissipate the energy of a mobile component in a mechanism) because the hydraulic hammer already internally comprises an element that performs the function of energy accumulator (the energy chamber that is located in the head of the hammer and that absorbs or receives energy depending on the position of the drummer).
    DESCRIPTION OF THE DRAWINGS


    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:
    Figure 1.- Shows a perspective view of the percussion set.
    Figure 2.- Shows a side view of the percussion set.
    Figure 3a.- Shows a sectioned view of the percussion set with the hammer percussor in a retracted position.
    Figure 3b.- Shows a sectional view of the percussion set with the hammer percussor in an extended position. PREFERRED EMBODIMENT OF THE INVENTION
    An example of embodiment of the present invention is described below with the aid of Figures 1 to 3.
    The percussion assembly of the present invention essentially comprises a repository
    (1) with a longitudinal axis (2), a hydraulic hammer (4) that transmits a shock wave to said grille (1) and which is linked to it by a bar mechanism. These elements can be clearly seen in the perspective represented in Figure 1.
    That is, in the present invention, the grate (1) is not directly connected to the hydraulic hammer (4) as in some prior art solutions but is linked through the bar mechanism that allows guiding the longitudinal movement of the grate. (one). A side view of the percussion set is shown in Figure 2.


    As can be seen in figures 3a-b, the hydraulic hammer (4) comprises at least one frame (5), which incorporates a lower open inner cylinder (6). It also comprises a drum (7) that moves inside the cylinder (6) between a retracted upper position and an extended lower position. In the extended lower position the hammer (7) protrudes from the cylinder (6) and hits the grate (1). Also, as seen in said figure 2, the hammer (7) of the hydraulic hammer is aligned with the longitudinal axis (2) of the grate (1).
    The mechanism of articulated bars that links the hydraulic hammer (4) with the grate (1) is formed by at least two pairs of bars (8) joined together. The joining of the bars (8) of each pair of bars is carried out by means of a first axis (9) that crosses the grate (1), and by means of a second axis (10) that crosses the frame (5) of the hydraulic hammer (4) ) such that the linear motion of the drummer (7) is transmitted as a purely linear motion to the grid (1) in the direction of its longitudinal axis (2). That is, the shock wave is transmitted as completely as possible to the ground. As seen for example in Figure 2, one of the pairs of bars (8) is arranged above the other (in a vertical direction from a side view).
    The grille (1) comprises an attack point (3) that is aligned with the direction of movement of the percussor (7) of the hydraulic hammer (4). In this way, when the grating (1) acts on the ground, the shock wave that is transmitted through the grating (1) is transmitted to the ground directly through the tip of the grating (1) that does not lean with respect to the direction of the hydraulic hammer hit (4). This avoids the problems of the state of the art associated with the breakage of the grid (1) when performing leverage operations.
    In figures 3a-b the movement of the drummer (7) in different positions of its path has been shown. Specifically, in figure 3a, said percussor (7) is shown in the retracted position. When the hydraulic hammer (4) is operated, the hammer (7) moves between the retracted and extended positions (shown in figure 3b), causing the shock wave that is transmitted to the ground to fracture it. As previously described, the grid (1) is arranged so that the drum (7) hits it to transmit the shock wave to the ground through said grid (1).


    Likewise, in these figures 3a-b the axes (9, 10) of the bars of each pair of bars can be seen. As previously described, the bar mechanism guides the movement of the reel (1) with respect to the hydraulic hammer (4). This ensures that the grate
    (1) remains aligned with the hammer hitting axis (7) of the hydraulic hammer (4) when
    5 grid (1) and therefore the shock wave is transmitted as completely as possible from the hydraulic hammer (4) to the ground.
    To limit the longitudinal movement of the grid, the articulated bar mechanism additionally comprises a lateral stop (11) that joins each pair of bars (8) by
    10 out of the frame (5) of the hydraulic breaker (4). That is, preferably each bar (8) joins the other bar (8) of its partner through the first and second axis (9, 10) and through the lateral stop (11).
    When the grate (1) moves, separating from the hydraulic hammer (4), due to lack of support
    15 to the terrain (for example when the terrain has already fractured), the lateral stops (11) limit such displacement. The lateral stops (11) are arranged in a position such that when the recess (1) moves along the direction of its longitudinal axis (2) the lateral stops (11) come into contact with the frame (5) of the hydraulic hammer (5). 4) when said displacement has reached the maximum determined by design.
    20 These movements are explained below with reference to figures 3a-b. Observing them you can see how, if the grate (1) moved down, the articulated bar mechanism would allow said displacement, guiding it to occur in the desired direction. As a result of downward scrolling
    25 of the grid (1), the first axes (9) move downwards, causing a pivot movement of the bars (8) around the second axes (10). This pivot movement causes the end of the bars (8) that is closest to the second axes (10) to move up, causing the contact of the lateral stops (11) with the frame (5) of the hydraulic hammer (5). 4), thus limiting movement.

    权利要求:
    Claims (2)
    [1]
    1.-Percussion set for the fracture of a terrain characterized in that it comprises: 5 -a grille (1) equipped with a longitudinal axis (2);
    - a hydraulic hammer (4) formed by: a frame (5) incorporating a lower open inner cylinder (6), a percussor (7) moving inside the cylinder (6) between a retracted upper position and a extended lower position where it protrudes from the cylinder
    10 (6) and impacts on the grate (1), in which the drum (7) is arranged aligned
    with the longitudinal axis (2) of the grid (1); -a articulated bar mechanism that relates the frame (5) of the hydraulic hammer (4) to the recess (1), so that the bar mechanism articulates respect to the frame (5) and the repository (1), and the mechanism of bars is formed by two pairs of bars (8) where
    15 the two bars (8) of each pair are connected to each other by means of a first axis (9) that crosses the grate (1), and by a second axis (10) that crosses the frame (5) of the hydraulic hammer (4) , so that the bar mechanism guides the movement of the grating
    (1) so that the linear movement of the percussor (7) is always maintained in a direction coinciding with that of the longitudinal axis of the grid (1).
    2. Percussion assembly according to claim 1 characterized in that the articulated bar mechanism additionally comprises a side stop (11) that joins each pair of bars (8) outside the frame (5) of the hydraulic hammer (4) arranged in a position such that when the grate (1) moves a certain distance in the
    25 direction of its longitudinal axis (2), the side stop (11) comes into contact with the frame
    (5) of the hydraulic hammer (4).
    [3]
    3. Percussion assembly according to claim 1 characterized in that it additionally comprises bearings arranged in correspondence with at least the first axis 30 (9) or the second axis (10).

     DRAWINGS 


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    同族专利:
    公开号 | 公开日
    ES2684509R1|2018-10-08|
    ES2684509B1|2019-07-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20030037938A1|2001-08-24|2003-02-27|Hall Ronald H.|Vibratory impactor|
    WO2011007030A1|2009-07-16|2011-01-20|Javier Aracama Martinez De Lahidalga|Hydraulic ripper for excavators|
    KR20150063412A|2012-10-03|2015-06-09|마르티네스 데 라이달가 하비에르 아라카마|Hydraulic hammer device for excavators|
    法律状态:
    2018-10-03| BA2A| Patent application published|Ref document number: 2684509 Country of ref document: ES Kind code of ref document: A2 Effective date: 20181003 |
    2018-10-08| EC2A| Search report published|Ref document number: 2684509 Country of ref document: ES Kind code of ref document: R1 Effective date: 20181001 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201730523A|ES2684509B1|2017-03-31|2017-03-31|PERCUSSION SET|ES201730523A| ES2684509B1|2017-03-31|2017-03-31|PERCUSSION SET|
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