Pile driver capable of vertically constructing pile

Abstract

A pile driver capable of vertically constructing a pile according to the present invention is provided with: a driver housing; a vibrating body supported in the driver housing by an elastic support unit and provided with a vibration-generating unit that generates vibrations for constructing the pile; a side grip part, installed on a side surface of the vibrating body, for gripping the pile; a coupling bracket installed in the driver housing; and a vibration direction-regulating unit installed in the driver housing and vibrating body so as to guide the vibration direction of the vibrating body in the vertical direction.

Description

Pile driver capable of vertical pile installation

[0001] The present invention relates to a pile driver, and more specifically, to a pile driver that enables vertical construction of a pile by vertically regulating vibration generated by a vibration generating unit.

[0002] In general, in order to construct a building structure or civil engineering structure, foundation piles are buried deep into the ground to secure bearing capacity. Various materials such as steel and concrete are used for these foundation piles, and they are constructed using various construction methods such as pile driving.

[0003] In particular, sheet piles used in roads, embankments, ports, and river construction are installed with their upper heads on the chuck of a pile driver and then pressed into the ground using vibration.

[0004] Meanwhile, Japanese Patent No. 07-102562 discloses a self-propelled vibratory pile driver, and Japanese Patent Publication No. 2006-169942 discloses a vibratory pile driving machine and a vibratory pile rotary driving method.

[0005] As described above, when constructing a pile in an inclined direction, the self-propelled vibrating pile driver cannot maintain the direction of impact due to the vibration direction of the vibrating body parallel to the pile, so there is a problem that a force is generated when striking, resulting in poor constructability.

[0006] In addition, as mentioned above, since the vibration body for the construction of the file is not smoothly regulated, there is a problem in that the vibration of the vibration body is not accurately transmitted to the file.

[0007] Korean Patent No. 10-1268417 discloses a vibrating ripper for heavy equipment. The disclosed ripper for heavy equipment comprises: a main body having a mount connected to a boom; a ripper supported by the main body and vibrating via a vibrator to break up rock or excavate soil; and a vibration-proof unit, which serves as a means for supporting the ripper and is interposed between the main body and the ripper side and slides via a linear ball arrangement, to reduce shock or vibration by moving the ripper up and down during the ripper vibration and operation, and to support the ripper body.

[0008] The conventional vibrating ripper described above can minimize the reaction force and vibration transmitted to the vibrating ripper when crushing rock or excavating ground, but it is difficult to vertically construct piles.

[0009] The present invention is intended to solve the above-described problems, and provides a pile driver capable of vertically constructing a pile that can maintain a vertical state according to the displacement of the vibration load, by vibrating a driver housing in which a vibration body is installed in a vertical direction parallel to a pile for construction, thereby providing a stable excitation force in the direction of pile construction.

[0010] Another object of the present invention is to provide a pile driver capable of vertically installing piles, which has a structure in which a vibration body is supported by first and second guide members installed vertically in a driver housing and a following member moving along the same, so that stable operation is possible even when a portion of an elastic support member is damaged, and piles for construction can be gripped from the side, thereby improving the gripping efficiency of piles.

[0011] In order to achieve the above purpose, the pile driver of the present invention capable of vertically installing a pile comprises a driver housing, a vibration body supported by an elastic support unit on the driver housing, and a vibration generating unit that generates vibration for installing a pile,

[0012] A side grip part installed on the side of the above vibration body for holding a file, and a coupling bracket installed on the above driver housing,

[0013] It is characterized by having a vibration direction regulation unit installed in the above driver housing and the vibration body to guide the vibration direction of the vibration body in the vertical direction.

[0014] In the present invention, a support member is provided that is rotatably installed by the above-mentioned coupling bracket and hinge axis, and a swing unit that can rotate the driver housing forward and backward is further provided on the support member.

[0015] A tilting unit is provided that is installed on the above support member and the coupling bracket and tilts the support member installed on the driver housing at a predetermined angle with respect to the coupling bracket.

[0016] The above vibration direction regulation unit comprises guide members installed vertically on each side of the vibration body, and a following member installed in the driver housing so that the vibration body can vibrate in a vertical direction by being followed by the guide members.

[0017] In order to achieve the above purpose, a pile driver capable of vertically installing a pile according to the present invention comprises a driver housing, a vibration body supported by an elastic support unit on the driver housing, and having a vibration generating unit that generates vibration for installing a pile,

[0018] A side grip part installed on the side of the above vibration body for holding files,

[0019] A coupling bracket installed on the driver housing so that the driver housing can be rotated by the bucket cylinder in combination with the boom of the excavator,

[0020] A bucket cylinder operation release unit that releases the operation of the bucket cylinder during construction of the above file, thereby granting rotational freedom to the driver housing with respect to the boom.

[0021] It is characterized by having a vibration direction regulation unit installed in the above driver housing and the vibration body to guide the vibration direction of the vibration body in the vertical direction.

[0022] In the present invention, the bucket cylinder operation release unit is installed in the bucket cylinder body of the bucket cylinder and is connected to ports for moving the bucket cylinder rod forward and backward, respectively, and further includes a control valve for supplying and discharging operating oil to the bucket cylinder body when the bucket cylinder rod is moved forward and backward by an external force transmitted from the driver housing to the bucket cylinder rod through the coupling bracket.

[0023] The pile driver capable of vertically installing a pile according to the present invention can vertically guide the vibration direction of the vibration body forming the vibration generating unit, thereby enabling precise vertical installation of the pile, and can reduce the generation of a component of the excitation force for installing the pile, thereby increasing the vibration impact force applied to the pile.

[0024] In addition, it is possible to prevent the construction direction of the pile from being distorted by external force applied by the boom and bucket cylinder of the excavator combined with the joint bracket during pile construction.

[0025] And since a side grip part for gripping a file is formed on the side of the vibration body, it is easy to grip a file for construction, and the size of the equipment can be prevented from increasing due to the length of the file for construction increasing.

[0026] Figure 1 is a perspective view showing a pile driver capable of vertically installing a pile according to the present invention mounted on an excavator.

[0027] Figure 2 is a perspective view of a pile driver capable of vertically installing a pile according to the present invention, and Figure 3 is a cross-sectional view of a pile driver capable of vertically installing a pile according to the present invention.

[0028] Figure 4 is a separation diagram showing other embodiments of a pile driver capable of vertical pile installation according to the present invention.

[0029] Figure 5 is a cross-sectional view showing a state in which a side grip part is installed on a vibration body of a pile driver capable of vertical pile construction according to the present invention.

[0030] Figure 6 is a hydraulic circuit diagram showing the cylinder operation release unit of the present invention.

[0031] Figure 7 is a perspective view showing the operating state of a pile driver capable of vertical pile construction according to the present invention.

[0032] An embodiment of a pile driver capable of vertically installing a pile according to the present invention is shown in FIGS. 1 and 2.

[0033] Referring to the drawings, a pile driver (10) capable of vertically installing a pile according to the present invention comprises a driver housing (12) equipped with a coupling bracket (11) that is coupled to a boom (110) having a bucket cylinder (111) of an excavator (100) installed thereon, a vibration main body (41) that is vibrated and supported by elastic support members (35) on the driver housing (12) and serves as a vibration generating unit (40), and a side grip portion (50) that extends to the side of the vibration main body (41) and grips the pile. In addition, a vibration direction regulation unit (60) is installed on the driver housing (12) and the vibration main body (41) to guide the vibration direction of the vibration main body (41) in a vertical direction.

[0034] In addition, a bucket cylinder operation release unit (80) is provided to release the operation of the bucket cylinder when constructing a pile by a driver, thereby granting rotational freedom to the driver housing with respect to the boom.

[0035] And as shown in FIG. 4, the coupling bracket (11) is rotatably supported by a support member (15) and a hinge shaft (16), and a swing unit (20) that rotatably supports the driver body (12) with respect to the support member (15) between the support member (15) and the driver housing (12), and a tilting unit (70) for tilting the driver housing (12) with respect to the coupling bracket (11) may be further provided between the support member (15) and the coupling bracket (11).

[0036] The pile driver capable of vertical construction according to the present invention, which is configured as described above, will be described in more detail with reference to FIGS. 1 to 6 for each component as follows.

[0037] A pile driver capable of vertical construction is configured so that the boom (100) and the bucket cylinder (121) of the excavator (100) can be controlled by the bucket cylinder (111) installed on the boom (110) of the excavator (100), and the boom (100) and the bucket cylinder (121) are connected to the connecting bracket (11) by a hinge pin (11a). However, the present invention is not limited thereto, and the connecting bracket (11) can be connected to a quick coupler that is connected to the boom (110) and the bucket cylinder (111) of the excavator by a link.

[0038] And the vibration direction regulation unit (60) for vertically guiding the vibration body (41) is provided with first and second guide rods (61) (62) installed vertically on the driver housing (12) on the corresponding sides of the vibration body (41) as shown in FIGS. 2 and 3. The first and second guide rods (61) (62) may each be formed in multiple pieces, and may be installed in an alternating manner.

[0039] In the above driver housing (12), first and second follower members (65) (66) are installed to follow first and second guide rods (61) (62) installed vertically on both sides of the vibration body (41). The first and second follower members (65) (66) are configured to contact the first and second guide rods (61) (62), respectively, and may be formed of guide rollers installed in the driver housing (12). It is preferable that at least two pairs of guide rollers are installed for each of the first and second guide rods (61) (62).

[0040] The above first and second follower members (65)(66) are not limited to the above-described embodiment, and may be formed as a sliding member that slides in combination with the first and second guide rods (61)(62).

[0041] The above elastic support member (35) supports the vibration body (41) so that it can vibrate with respect to the driver housing (12), and both ends are fixed to the inner surface of the driver housing (12) and the side surface of the vibration body (41) corresponding thereto. The above elastic support member (35) may be formed by alternately laminating rubber and metal plates. A fixing plate member for fixing may be installed on both sides of the elastic material support member (35). The fixing plate member is fixed to the inner surface of the driver housing (12) and the outer surface of the vibration body (40) corresponding thereto, thereby suspending the vibration body (40) on the driver housing (12) by the elastic support member (35).

[0042] The above elastic support member is not limited to the above embodiment, and may be formed of an elastic spring so as to vibrately support the vibration body (41) relative to the driver housing (12).

[0043] The vibration generating unit (40) installed in the above vibration body (41) to vibrate it comprises two drive shafts with eccentric weights attached thereto installed in parallel inside the vibration body (41), and gears that mesh with each other are respectively installed on these drive shafts. The eccentric weights installed on the drive shafts are installed in the same direction with respect to the drive shafts so as to maximize vibration in the vertical direction. In addition, a hydraulic motor, which is an actuator for driving at least one of the two drive shafts, is installed in the vibration body.

[0044] This configuration is disclosed in Patent Registration No. 0878296, which the inventor of the present invention applied for and received. However, the vibration generating unit is not limited to the above-described embodiment, and any structure capable of vibrating the vibration body in the vertical direction is possible.

[0045] The swing unit (20) of the pile driver (10) having the vibration direction regulation unit (60) is installed in the support member (15) and the driver housing (12) as shown in Fig. 4, and a rotation shaft (21) fixed to the driver housing (12) is rotatably installed in the support member (15), and a ring gear (22) is installed coaxially with the rotation shaft (21), and the ring gear (22) is supported by the rotation shaft (31) and fixed to the driver housing (12).

[0046] And, in the above driver housing (12), a driving motor (24) is installed to rotate the ring gear (22) in the forward and reverse directions, and a driving gear (not shown) that meshes with the ring gear (22) is installed on the driving shaft of the driving motor (24). The motor (24) for rotating the driving gear may be formed of a hydraulic motor.

[0047] The above tilting unit (70) has a tilting cylinder (71) that is rotatably installed on the above coupling bracket (11), and the rod (72) of the tilting cylinder (71) is connected to a fixed bracket (73) that is installed perpendicular to the hinge axis (16) by a hinge pin (73a).

[0048] Meanwhile, the side grip part (50) is installed to protrude through an opening on the front side of the driver housing (12) for gripping a pile (200) for construction as shown in FIGS. 4 and 5, and has at least one pair of side grip members (51) (52) that are rotatably installed on the vibration body (41). First and second pads (53) (54) are installed on the front end side of each side grip member (51) (52) to increase gripping force when gripping a pile.

[0049] And, an actuator (55) for rotating the side grip member (51) (52) is installed on the rear end of the side grip member (51) (52). The actuator may be formed of a hydraulic cylinder.

[0050] The above-mentioned cylinder automatic release unit (80) is provided with ports (113)(114) for supplying operating oil to both sides of the cylinder body (112) of the bucket cylinder (111) installed on the boom (110) of the excavator (100), i.e., the bucket cylinder (111) installed on the boom (110) at the end side of the excavator. These ports (113)(114) are connected by the first and second connecting pipes (81)(82), and the first and second connecting pipes (81)(82) are connected to a control valve for controlling the bucket cylinder (111) by the hydraulic supply unit of the excavator. And the first and second connecting pipes (81)(81) are connected to the first and second branch pipes (91)(92), respectively, and the first and second branch pipes (91)(92) are provided with a solenoid valve (93) for returning the working fluid to the tank through the first and second connecting pipes (81)(82) and the first and second branch pipes (91)(92) so that the load of the bucket cylinder (111) can move freely through the first and second branch pipes (91)(92) or by blocking the first and second branch pipes (91)(92). It is preferable that the solenoid valve use a 3-port 2-position control valve.

[0051] The operation of the pile driver capable of vertical construction according to the present invention configured as described above is described as follows.

[0052] First, in order to construct a pile, the coupling bracket (11) is supported on the boom (110) of the excavator (100). In this state, the pile (200) to be constructed is gripped using the side grip part (50) installed on the vibration body (41).

[0053] To this end, as shown in FIGS. 4, 5, and 7, the swing unit (20) and the tilting unit (70) are used to adjust the posture of the vibrating body (41) so that the side grip part (50) can easily grip the file (200) while the file (200) is placed. That is, the drive gear (23) is driven by the drive motor (24) installed in the driver housing (12) or the support member (15) to rotate the linkage (22) engaged therewith, thereby rotating the driver housing (12) at a predetermined angle.

[0054] In addition, by operating the tilting cylinder (71) of the tilting unit (70), the support member (15) connected by the connecting bracket (11) and the hinge axis (16) is rotated at a predetermined angle, thereby tilting the driver housing (12) and, in the state where the file (200) is placed, the file (200) is held using the file holding unit (50).

[0055] This can improve the workability of the pile device since there is no need to move and install the vibration pile using separate equipment such as a crane, as with a vibration pile driver for constructing conventional piles.

[0056] In particular, when gripping a pile (100), as shown in FIG. 6, the pile (200) constructed by the first and second side grip members (51) and (52) that are supported by the vibration body (41) and protrude toward the front can be gripped from the side, so that the boom (110) of the excavator does not need to be relatively long for constructing a relatively long pile (200). This can improve the constructability and workability of the pile.

[0057] When the pile (100) is completed as described above, the pile (100) is moved to the construction position, and then the construction angle of the pile (100) is adjusted using the swing unit (20) and the tilting unit (70) as described above.

[0058] In this state, the pile is constructed by vibrating the vibration body (41) using the vibration generating unit (40). When constructing the pile (200), the vibration body (41) of the vibration generating unit (40) vibrates with respect to the driver housing (12) by the elastic support members (35), and the vibration body (41) is guided by the vibration direction regulation unit (60) to vibrate in the vertical direction, that is, in the vertical direction of the pile (100) being constructed. The guide rollers, which are the following members (65)(66) installed on both sides of the vibration body (41), move along the first and second guide rods (61)(62), thereby limiting the degree of freedom of vibration and providing a vertical excitation force to the pile.

[0059] This can prevent the vibration force acting on the pile (200) from being generated through the vibration body (41) and the side grip part (50) when constructing the pile (200), and also can increase the impact force because the load of the side grip part (50) and the vibration body (41) is applied to the pile in a vertical direction.

[0060] The pile driver (10) having a precision vertical construction system according to the present invention has a vibration body (41) suspended from the driver housing (12) by an elastic support member (35), so that even if the elastic support member (35) is damaged, the vibration body (41) can be prevented from being separated from the driver housing (12).

[0061] Meanwhile, the pile driver capable of vertical construction is connected to the coupling bracket (11) by the boom (110) of the excavator (100) and the bucket cylinder (111) installed thereon, and thus the pile (200) is constructed. As the pile (200) is inserted, the boom (110) of the excavator is lowered together, and an external force is applied in the outward direction. Therefore, the driver must maintain a horizontal state by finely manipulating the cylinder, but there are practical limitations to the operation.

[0062] However, the bucket cylinder (111) installed on the boom (110) operates the solenoid valve (93) by the control unit of the cylinder operation release unit (80) while the pile (200) is being normally constructed, and returns the automatic fluid for operating the bucket cylinder (111) to the tank through the first and second branch pipes (91) (92), so that the load of the bucket cylinder (111) can be freely introduced and withdrawn with respect to the cylinder body (112), and no external force is applied in the lateral direction with respect to the construction direction of the pile (200) by the load of the bucket cylinder (111).

[0063] Accordingly, while the pile (200) is being constructed, the constructability and operability can be improved without having to operate the bucket cylinder (111) installed on the boom (110) of the excavator (100).

[0064] As described above, the pile driver capable of vertical construction according to the present invention can maximize the efficiency of pile construction by regulating the direction of vibration so that the vibration body can vibrate in the vertical direction and thus the driving force acts in the vertical direction of the pile.

[0065] In addition, when constructing a pile by a pile driver capable of vertical construction mounted on a boom equipped with an excavator's bucket cylinder, the pile is installed on the excavator's boom and is prevented from receiving external force in the lateral direction by the bucket cylinder combined with the coupling bracket, thereby preventing the direction of the pile being constructed from being distorted.

[0066] Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

[0067] Therefore, the true technical protection scope of the present invention should be determined by the technical idea of ​​the attached registration claims.

[0068] The pile driver capable of vertical pile installation according to the present invention can be applied to hammers, breakers, drills, etc. for driving or crushing rocks.

Claims

1. A vibration body having a driver housing and a vibration generating unit that is supported by an elastic support unit on the driver housing and generates vibration for installing a pile, A side grip part installed on the side of the above vibration body for holding a file, and a coupling bracket installed on the above driver housing, A pile driver capable of vertical pile installation, characterized in that it is provided with a vibration direction regulation unit installed in the driver housing and the vibration body to guide the vibration direction of the vibration body in the vertical direction.

2. In paragraph 1, A pile driver capable of vertical installation of piles, characterized in that the vibration direction control unit comprises guide members installed vertically on each side of the vibration body, and a tracking member installed in the driver housing so that the vibration body can vibrate in a vertical direction by being followed by the guide members.

3. In paragraph 1, A pile driver capable of vertical installation of piles, characterized in that it comprises a support member that is rotatably installed by the above-mentioned coupling bracket and hinge axis, a swing unit that can rotate the driver housing forward and backward on the support member, and a tilting unit that is installed on the support member and the coupling bracket and tilts the support member installed on the driver housing at a predetermined angle with respect to the coupling bracket.

4. A vibration body having a driver housing and a vibration generating unit that is supported by an elastic support unit on the driver housing and generates vibration for installing a pile, A side grip part installed on the side of the above vibration body for holding files, A coupling bracket installed on the driver housing so that the driver housing can be rotated by the bucket cylinder in combination with the boom of the excavator, A bucket cylinder operation release unit that releases the operation of the bucket cylinder during construction of the above file, thereby granting rotational freedom to the driver housing with respect to the boom. A pile driver capable of vertical pile installation, characterized in that it is provided with a vibration direction regulation unit installed in the driver housing and the vibration body to guide the vibration direction of the vibration body in the vertical direction.

5. In paragraph 4, A pile driver capable of vertical pile installation, characterized in that the vibration direction control means comprises first and second guide members installed vertically on each side of the vibration body, and guide rollers installed in the driver housing so that the vibration body can vibrate in the vertical direction by being followed by the first and second guide members.

6. In paragraph 4, A pile driver capable of vertical construction of piles, characterized in that the above bucket cylinder operation release unit is installed in the bucket cylinder body of the bucket cylinder and is connected to ports for moving the bucket cylinder loader forward and backward, respectively, and further includes a control valve for supplying and discharging operating oil to the bucket cylinder body when the bucket cylinder rod moves forward and backward by an external force transmitted from the driver housing to the bucket cylinder rod through the coupling bracket.

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