Hitting device for driving a pile

Abstract

The invention reiates to a novei hitting device (101) comprising a frame (104), a first impact hammer (101), a hammer opening (103), and a second impact hammer (102). The aim of said hitting device is to increase the installation capacity of said hitting device by raising the number of installation impacts (106) directed towards the installed pile. This is achieved by an hitting device (100) comprising a frame (104) and the following means and features: a movable first hammer (101) with a hammer opening (103) into which a second hammer (102) is introduced.

Description

FIELD OF INVENTION

[0001] The invention can be used, for example, as a device in tracked piling machines, excavators, cranes, and other machines suitable for piling, for installing piles into the ground to stabilize the construction foundation. The mentioned solutions are applicable to equipment used in ground and water construction, for instance. The invention is powered by the mentioned machines or other hydraulic power units, which could be a separate hydraulic unit, for example. The invention is used to install objects that are embedded into the ground or seabed, such as concrete piles, steel pipe piles, steel profiles, sheet pile structures.KNOWN TECHNOLOGY

[0002] Commonly known technology includes various hitting devices, inside of which a single reciprocating block has been created to move back and forth in the direction of pile installation. In these mentioned hitting devices, the block operates, for example, hydraulically, and its movement may have been enhanced, for instance, by the force of a pressure accumulator.

[0003] The hitting devices of a single impact hammer, in terms of current technology, are designed to be as efficient as possible to achieve maximum pile installation power in terms of the speed of the hitting device's striking motion.BRIEF DESCRIPTION OF THE INVENTION

[0004] The invention relates to a novel hitting device comprising:

[0005] Device frame,

[0006] First impact hammer,

[0007] Hammer opening,

[0008] Second impact hammer.

[0009] The aim of the mentioned hitting device is to increase the installation capacity of the hitting device by raising the number of installation impacts applied to the installed pile. This is achieved with an hitting device comprising a device frame. The hitting device includes a first impact hammer with a formed hammer opening and a second impact hammer located within the hammer opening, movable in the longitudinal direction of the hitting device.

[0010] The advantage of the invention is that within a single hitting device, two impact hammers of known technology are introduced in order to produce the installation function. Another advantage of the invention is that the hitting device can be interchangeable with hitting devices installed in piling machines from other manufacturers. A further advantage of the invention is that the dual-action hitting device can be optionally converted into a single-action one, where, through a locking mechanism, the two separate hammers of the hitting device are connected to operate as a single unit. This provides an advantage in situations where, for example, load-bearing measurements are performed on installed piles and / or large-sized steel pipes are installed, requiring significant impact energy.LIST OF FIGURES

[0011] FIG. 1 presents an exemplary embodiment of the invention illustrating an hitting device placed on top of the installed pile.

[0012] FIG. 2 presents an exemplary embodiment of the invention illustrating an hitting device with three sides of the device frame concealed.

[0013] FIG. 3 presents an exemplary embodiment of the invention depicting the heads of the first impact hammer and the second impact hammer, which, due to the installation impact, strike the first and second impact cushions of the impact cushion device.LIST OF FIGURE REFERENCES100 Hitting device, which can be attached to any boom device, working machine, or suspended on a crane.

[0015] 101 First impact hammer.

[0016] 102 Second impact hammer.

[0017] 103 Hammer opening, shaped and designed to enable the longitudinal movement of the second impact hammer.

[0018] 104 Device frame, housing all the functions of the hitting device inside and / or outside, excluding power generation.

[0019] 105 Moving means, such as a hydraulic cylinder or electromagnetically operated lifting device.

[0020] 106 Installation stroke, referring to the impact produced by the first impact hammer or the second impact hammer, resulting in force applied to the installed pile.

[0021] 107 Installed pile counterforce, denoting the counter-movement generated in the installed pile due to the installation stroke. The counterforce may be directed towards the hitting device or connected components. It can be caused by flexible soil or other flexible components in the hitting device, such as a rebound ring or impact cushion.

[0022] 108 Conductor means, installed between the first impact hammer and the second impact hammer, guiding and reducing friction in their movement.

[0023] 109 Locking mechanism, used to connect the impact hammers (101 and 102) to move simultaneously in the same direction, forming a single-action hammer.

[0024] 110 Pile, which can be made of steel, concrete, and have various shapes such as round, angular, or other deviations. It may also refer to a steel profile.

[0025] 111 Contact shape of the first impact hammer, striking the first impact cushion.

[0026] 112 Contact shape of the second impact hammer, striking the second impact cushion.

[0027] 113 First impact cushion, receiving the impact from the first impact hammer.

[0028] 114 Second impact cushion, receiving the impact from the second impact hammer.

[0029] 115 Impact cushion device, containing, for example, impact cushions (113 and 114).

[0030] 116 Fastening shell, through which the impact cushion device is attached to the device frame.

[0031] 117 Frame of the impact cushion device, positioning and separating the impact cushions (113 and 114).

[0032] 118 Locking opening, provided for both the first impact hammer and the second impact hammer, with these locking holes being mutually aligned.

[0033] 119 Controlling mode, which can be implemented in, for example, the first impact hammer or the second impact hammer. The controlling mode can include a conductor component or be positioned relative to the impact hammers (101 and 102) with the help of a conductor component.

[0034] 120 Motion detection means, recognizing the movement of the hitting device.DESCRIPTION OF EXEMPLARY EMBODIMENTS OF THE INVENTION

[0035] In FIG. 1 an exemplary embodiment of the invention is presented, featuring a device frame 104 within which a first impact hammer 101 is provided, including a hammer opening where a second impact hammer 102 moves longitudinally. At least two moving means 105 propel the first impact hammer 101 in the longitudinal direction of the hitting device, while at least one moving means 105 propels the second impact hammer 102 in the same direction. Through a locking mechanism 109, the first impact hammer 101 and the second impact hammer 102 can be locked together, transforming them into a unified single-action impact hammer. The lower end of the hitting device 100 has a mounting shell 116 for an impact cushion device 115, which attaches to the hitting device 100. During installation, the upper end of the pile 110 is positioned in the impact cushion device. Due to the installation stroke 106, the pile 110 moves into the ground. For example, elastic soil may cause a counter-movement in the installed pile, opposite to the installation stroke. The embodiment includes a device frame 104 with a detection means 120, producing movements of the hitting device in directions such as x, y, and / or z.

[0036] In some exemplary embodiments of the invention, the device frame 104 is cylindrical or angular in shape.

[0037] In some exemplary embodiments of the invention, the first impact hammer 101 and / or the second impact hammer 102 is externally at least quadrangular or cylindrical in shape.

[0038] In some exemplary embodiments of the invention, the first impact hammer 101 and / or the second impact hammer 102 is shaped such that the force produced by the installation stroke 106 is evenly distributed along the longitudinal axis of these impact hammers.

[0039] In some exemplary embodiments of the invention, the moving means 105 for the first impact hammer 101 are located outside the device frame 104 on opposite sides, lifting the first impact hammer 101 upward.

[0040] In some exemplary embodiments of the invention, the moving means 105 for the first impact hammer 101 are located inside the device frame 104 on opposite sides, lifting the first impact hammer 101 upward.

[0041] In some exemplary embodiments of the invention, at least one moving means 105 may be pressurized by an accumulator.

[0042] In some exemplary embodiments of the invention, at least two moving means 105 can use the same accumulator.

[0043] In some exemplary embodiments of the invention, the moving means 105 for the first impact hammer 101 are hydraulic cylinders.

[0044] In some exemplary embodiments of the invention, the moving means 105 for the first impact hammer 101 are linear motors.

[0045] In some exemplary embodiments of the invention, the moving means 105 for the second impact hammer 102 are positioned at the upper end of the device frame 104, lifting the second impact hammer 102 upward.

[0046] In some exemplary embodiments of the invention, there is a transverse locking hole 118 provided in the first impact hammer 101 and the second impact hammer 102, through which a locking mechanism 109 locks the impact hammers 101 and 102 together to achieve a unified installation stroke. The illustrated locking mechanism 109 is inserted into the locking hole 118.

[0047] In some exemplary embodiments of the invention, the mounting shell 116 and the impact cushion device 115 may be implemented in a different way.

[0048] In some exemplary embodiments of the invention, the mounting shell 116 and the impact cushion device may be a single component.

[0049] a) an exemplary embodiment of the invention is presented, featuring a first impact hammer 101 with a longitudinal hammer opening 103, within which a second impact hammer 102 moves longitudinally. The second impact hammer 102 has at least four longitudinal control modes 119, to which conductor means 108 are attached. The mentioned conductor means 109 operate between the first and second impact hammers 101 and 102, controlling their movement and reducing motion friction. The figure illustrates the direction of the installation stroke 106 for the first impact hammer 101 and the second impact hammer 102. The embodiment shows at least two locking mechanisms 109 and locking holes 118 in the first and second impact hammers 101 and 102, through which the first impact hammer 101 and the second impact hammer 102 are locked together to achieve a unified installation stroke.

[0050] In some exemplary embodiments of the invention, the external surface of the locking mechanism 109 has an external thread along its longitudinal direction, which engages with a corresponding internal thread in the locking hole 118.

[0051] In some exemplary embodiments of the invention, the hammer opening 103 is circular, with a number of longitudinal control modes corresponding to the number of conductor means 108 on its outer circumference. The function of these control modes is to position and control the second impact hammer 102 through the conductor means 108.

[0052] In some exemplary embodiments of the invention, the hammer opening 103 is angular, with a number of longitudinal controlling modes 119 on its longitudinal sides corresponding to the number of conductor means 108. The function of these control modes is to position and control the second impact hammer 102 through the conductor means 108,

[0053] In some exemplary embodiments of the invention, at least two controlling modes 119 are provided in the first impact hammer 101 and / or the second impact hammer 102.

[0054] In some exemplary embodiments of the invention, at least two conductor means 108 are attached to either the first impact hammer 101, the second impact hammer 102, or the controlling modes 119.

[0055] In some exemplary embodiments of the invention, at least two conductor means 108 are attached to some of the following:

[0056] The first impact hammer 101, or

[0057] The second impact hammer 102, or

[0058] The control modes 119.

[0059] b) An exemplary embodiment of the invention, the head of the first impact hammer 101 is provided with a first impact hammer contact form 111, which is shaped the same as the first impact cushion 113. The head of the second impact hammer 102 is provided with a second impact hammer contact form 112, which is shaped the same as the second impact cushion 114. The device frame 117 of the impact cushion device 115 present features that position the first impact cushion 113 and the second impact cushion 114. The forms created on the device frame 117 receive the impact of the installation stroke on the first impact cushion 113 and the second impact cushion 114. As a result, when compressed, the first impact cushion 113 and the second impact cushion 114 tend to spread in a direction transverse to the installation stroke.

[0060] In some exemplary embodiments of the invention, the contact form 111 or contact form 112 may be shaped as one of the following or a combination of some of the following:

[0061] Cylindrical

[0062] Circular

[0063] Angular

[0064] In some exemplary embodiments of the invention, the contact form 111 of the first impact hammer and / or the contact form 112 of the second impact hammer is shaped (symmetrical) such that the force produced by the installation stroke 106 is evenly distributed along the structure of the contact forms 111 and 112 in the direction of the installation stroke, centrally relative to the central axis. Thus, the force of the installation stroke on the pile is central to the central axis of the pile.

[0065] In some exemplary embodiments of the invention, the first impact cushion 113 and / or the second impact cushion 114 are shaped (symmetrical) such that the force produced by the installation stroke 106 is evenly distributed along the structure of the impact cushions 113 and 114 in the direction of the installation stroke, centrally relative to the central axis. Thus, the force of the installation stroke on the pile is central to the central axis of the pile.

[0066] In some exemplary embodiments of the invention, the first impact hammer contact form 111, created at the head of the first impact hammer 101, is shaped the same but has a smaller contact surface area compared to the contact surface area of the first impact cushion 113. This design ensures that the first impact hammer contact form 111 does not collide with the frame 117 of the impact cushion device during the installation stroke.

[0067] In some exemplary embodiments of the invention, the second impact hammer contact form 112, created at the head of the second impact hammer 102, is shaped the same but has a smaller contact surface area compared to the contact surface area of the second impact cushion 114. This design ensures that the second impact hammer contact form 112 does not collide with the frame 117 of the impact cushion device during the installation stroke.

[0068] In some exemplary embodiments of the invention, the first impact hammer contact form 111, created at the head of the first impact hammer 101, differs from the first impact cushion 113 in that a control mode is provided on the mentioned contact form 111.

Claims

1. Hitting device comprising a machine frame (104), characterized in that the hitting device comprises a first impact hammer (101) with a longitudinally oriented impact hammer opening (103) inside of which a second impact hammer (102) is arranged to move longitudinally for forming an installation impact (106) with the first impact hammer (101) in creating two installation functions, increasing the number of installation impacts per unit of time and installation capacity.

2. Hitting device according to claim 1, characterized in that the hitting device comprises at least one locking means (111) for connecting the first impact hammer (101) and the second impact hammer (102) into a single-action impact hammer.

3. Hitting device according to claim 1, characterized in that the hitting device comprises at least three conducting means (109) to be installed between the first impact hammer (101) and the second impact hammer (102).

4. Hitting device according to claim 3, characterized in that at least two conducting means (109) are attached to the first impact hammer (101) via controlling mode (119) to control the movement and reduce friction between the first impact hammer (101) and the second impact hammer (102).

5. Hitting device according to claim 3, characterized in that at least two conducting means (109) are attached to the second impact hammer (102) via controlling mode (119) to control the movement and reduce friction between the first impact hammer (101) and the second impact hammer (102).

6. Hitting device according to claim 3, characterized in that at least two conducting means (109) are attached to the first impact hammer (101) to control the movement and reduce friction between the first impact hammer (101) and the second impact hammer (102).

7. Hitting device according to claim 3, characterized in that at least two conducting means (109) are attached to the second impact hammer (102) to control the movement and reduce friction between the first impact hammer (101) and the second impact hammer (102).

8. Hitting device according to claim 1, characterized in that the hitting device comprises a motion detection means (106) arranged to detect the impact generated by the installation impact (107) of the first impact hammer (101) and the second impact hammer (102) and the countermovement of the installed pile (108).

9. Hitting device according to claim 1, characterized in that the hitting device comprises an impact cushion device (115), through which the first impact hammer (101) and the second impact hammer (102) are arranged to form an installation impact (106) in the installed pile via said impact cushion device (115).

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