JP2719320B2 - Power supply method and power supply device for vibratory pile punching machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile punching machine used for driving a pile into the ground by vibrating the pile or by vibrating the pile to pull it out of the ground. TECHNICAL FIELD The present invention relates to a method for supplying electric power for generating electric power, and the same.

[0002]

2. Description of the Related Art FIG. 7 is a front view showing a state in which a pile is gripped by a conventional vibrating pile punching device, and is partially cut and drawn. Reference numeral 1 denotes an exciter having a structure in which each of a pair of eccentric weights 1a is attached to a rotating shaft 1b, and forms a main body of a vibrating pile punching device. Reference numeral 9 denotes a driving unit that rotationally drives a rotation shaft to which the eccentric weight is attached,
This conventional example has an electric motor as a power source. A chuck unit 10 is provided below the vibration pile punching machine main body 1. Hydraulic drive means (for example, a hydraulic cylinder 40) is provided in the chuck portion, and grips the pile 17 to apply vibration to the pile 17. A support 3 is provided for suspending the chuck portion 10 holding the pile 17 and the vibrating pile punching machine body 1 by a crane, and a hanger portion 4 of the support 3 is provided with a suspension ring 4a.

When the hook (not shown) of the crane is hung on the suspension ring 4a and suspended, the shock absorber 2 is provided so that the vibration of the vibration pile punching machine body 1 is not transmitted to the crane boom. A bracket-shaped buffer holding means 11 is provided on the side of the vibration pile punching machine main body 1 and is provided with a through hole 11a. On the other hand, a vertical rod 5 is attached downward from both ends of the hanger portion 4 of the support 3, and the rod 5 is loosely fitted and penetrates the through hole 11 a of the buffer holding means 11. . The shock absorber 2 includes a coil-shaped upper spring 7 and a lower spring 8. The upper spring 7 externally fitted to the vertical rod 5 compresses the hanger portion 4 and the shock absorber holding means 11. The rod 5
A lower spring 8 is externally fitted to the rod 5 and compressed and interposed between the receiving seat 6 attached to the lower end of the rod 5 and the buffer holding means 11.

[0004] Reference numeral 12 denotes a power supply line composed of a cabtire cable for supplying power (electrical energy) to a drive unit 9 having an electric motor. Reference numeral 15 denotes a hydraulic hose for supplying power (hydraulic energy) to a hydraulic cylinder 40 which is a hydraulic drive unit of the chuck unit 10. During operation of the vibratory pile punching machine, the vibrating pile punching machine main body 1 vibrates violently in the vertical direction, so that the drive unit 9 vibrates violently in the vertical direction. The power supply line 12 connected to the drive unit 9 receives the above-described vibration, and generates vibration similar to the harmonic vibration of so-called string vibration, and damages a portion corresponding to the antinode of the vibration.

In order to prevent the power supply line 12 from being damaged by vibration, the following technique is known. FIG. 8 is a front view of a known power supply device configured to prevent the vibration of the vibration pile punching machine main body from transmitting to the power supply line. In the known example shown in FIG. 8, an arm 4b is extended from the side of the hanger portion 4, and the power supply line 12 is suspended by the arm 4b. According to such a configuration, since the hanger portion 4 is buffered with respect to the vibration pile punching machine main body 1 via the buffer 2 and has a small vibration, the power supply line 12 is not subjected to severe vibration, and damage due to the vibration is prevented. Is prevented.

[0006]

The arm 4b extends laterally because the power supply line 12 suspended from the arm 4b is connected to the vibration pile punching machine main body 1 (and together with the same). This is in order to prevent contact with a member that is vibrating rapidly. If the power supply line 12 is pulled diagonally downward in order to separate the power supply line 12 from the vibrating pile punching machine body 1 without extending the arm 4b to the side, excessive power is applied to the power supply line 12 due to excessive tension. This known example (FIG. 8) uses the arm 4b because there is a possibility that the wire 12 may be damaged.
Are projected sideways so as not to touch the vibrating pile punching machine body 1 without pulling the power supply line 12 obliquely.

However, when the known vibrating pile punching machine shown in FIG. 8 is transported, for example, when the pile is loaded on a truck bed, the vicinity of the tip of the overhanging arm 4b collides with an obstacle and a power supply line is provided. Not a few accidents occurred in which the twelve drawer portions 12e were damaged. It may be thought that such a damage accident should be prevented by proper transport work management, but it is not always expected that strict transport work management is always performed under various working conditions at a construction site. . The present invention has been made in view of the above circumstances, and the power supply means in a vibrating pile punching device is damaged by vibration during operation, is damaged during a transfer operation, and makes the transfer operation difficult. It is an object of the present invention to provide a method for supplying power without fear of the occurrence of a power failure, and the same.

[0008]

The present invention created to achieve the above object can be roughly classified into a first group of inventions related to a device for preventing breakage of a power supply line due to vibration, and a first group of the invention. A second group of inventions related to a method for preventing breakage due to vibration of a power supply line and a third group related to a device suitable for carrying out the method of the invention of the second group improved by reviewing and improving the constituent elements of the invention. Classified as invention. The basic structure of each of the first, second, and third groups of the invention is described as an independent claim in the claims.

The gist of the first group of the invention will be described with reference to FIGS. 1 to 3 corresponding to the embodiment. A vibrating pile punching machine main body (1) which can be vibrated in a vertical direction by a driving part (9). And a supporter (3) for supporting the vibrating pile punching machine body (1) from above via a buffer (2), and a power supply connected to the drive section (9). A wire (12) is held by the support (3) via a vibration isolating member (14), and the power supply line (12)
Of the power supply line (12) held by the support (3) via the vibration isolating member (14) between the portion (12a) connected to the drive section (9) and the held portion (12b). In the meantime, the power supply line is hooked on hooking means (3a) of the support (3). According to the invention of the first group, the power supply line (12) is held by the support (3) via the vibration isolating member (14), and the connecting portion (12a) and the held portion ( 12b), the power supply line (12) is hung on the support (3), so that the power supply line (12) is connected to the vibrating pile punching machine body (1) and the shock absorber during vibration. Since the power supply line (12) is not inadvertently contacted with the body (2) and the power supply line (12) is held by the support (3) via the vibration isolating member (14), the power supply line (12) ) Can be reduced.

Considering the relationship between the constituent elements and the effects of the invention of the first group described above, the driving unit (9) in FIG. 1 is provided together with the vibrating pile punching machine body (1). The vibrating member, the hanger part (4), the rod (5) and the seat (6) are mounted on the vibrating pile punching machine body (1) via the buffer (2) to substantially transmit the vibration. It is a non-vibration member that is shut off.

Therefore, in order to prevent damage caused by vibration of the power supply line (12), the power supply line (12) is connected to any of the above non-vibration members via the vibration isolating member (14). This is an essential configuration to support. However, it is not indispensable that the power supply line (12) is hooked on the hooking means (3a) of the support (3). Based on these considerations, the power supply line (1
We reviewed the requirements for preventing damage due to vibration in 2), and confirmed the experimental effects of the second
Referring to FIGS. 4 and 5 corresponding to the embodiment, the invention method of the group will be described. A vibrating pile punching machine (1) driven by a driving unit (9) having an electric motor to generate vertical vibrations. ) And a support (3) for supporting the vibrating pile punching machine body (1) via the buffer (2). A connecting portion (12a) of a power supply line (12) made of an insulated wire is connected to an electric motor of the drive section (9), and the support (3) or a member fixed to the support ( The power supply line (12) is attached to a non-vibration member via a vibration-proof member (14) having elasticity. However, the member fixed to the support does not necessarily need to be rigidly coupled to the support, and a member belonging to the same vibration system as the support in an operating state (for example,
It is intended to include a rod (5) pressed by an elastic force against a hanger portion (4) of a support (3) in FIG.

An apparatus according to a third group for carrying out the method according to the second group is a pile punching machine body (1) driven by a driving section (9) having an electric motor to generate vertical vibrations. A device for supplying electric power to a vibratory pile punching machine, comprising: a buffer (2) elastically supporting the pile punching machine body (1) with respect to a support (3). Power supply line (1) made of flexible insulated wire
2) The connecting portion (12a) is connected to the electric motor of the driving section (9), and the power supply line (12) is fixed to the support (3) or the support. Against the vibration isolating member (1
It is characterized in that it is attached via 4).

When the invention method of the second group is carried out using the above-described invention device of the third group, the connection portion (1) of the power supply line (12) composed of a flexible insulated wire is provided.
2a) is connected to a vibrating drive (9),
The power supply line (12) is attached to the support (3) via the vibration isolating member (14) (or is attached to a member belonging to the same vibration system as the support (3)). Since the support body (3) is elastically supported by the vibration pile punching machine body (1) via the buffer (2), the support body (3) is supported by the vibration pile punching machine body (1). Does not vibrate violently as in). The power supply line (12) attached to the support (3), which does not vibrate violently, via the vibration isolating member (14) provides the held portion (12b) even if the connecting portion (12a) is vibrated. ) Is hardly vibrated. Since the length of the power supply line (12) between the connection portion (12a) and the held portion (12b) is relatively short, the power supply line does not cause resonance due to vibration, and is damaged by vibration. There is no fear. Further, since the held portion (12b) is hardly subjected to vibration, there is no possibility that the power supply (not shown) side of the held portion (12b) is damaged by the vibration.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a first group of the inventive devices will be described with reference to FIGS. 1 to 3 sequentially.
FIG. 1 is a front view showing an embodiment of a power supply device in a vibrating pile punching machine according to the present invention, which is partially cut and drawn. FIG. 2 is a side view of the power supply device according to the embodiment, which is partially cut and drawn. And FIG.
FIG. 3 is an enlarged sectional view of the vicinity of a power supply line holding portion in FIG. 2 illustrating a side view of the embodiment. The power supply device of the present embodiment includes a vibrating pile punching machine main body 1 capable of vertically vibrating by a driving unit 9 connected to a power supply line 12 (see FIG. 1);
It comprises a support 3 for supporting the vibration pile punching machine main body 1 from above via a buffer 2 and a holding member 13 (FIG. 2) for holding the power supply line 12.

The support 3 has an arcuate hanger portion 4 provided with a hooking means 3a to which the power supply line 12 can be hooked.
And a rod 5 hanging down from four corners of the hanger part 4 and fixed, and a disk-shaped seat 6 fixed to the lower end of the rod 5. The hanger part 4 has a suspension ring 4a at the upper part thereof which can be suspended by a crane or the like. The driving section 9 which is an electric motor is provided on an upper side of the vibration pile punching machine main body 1, and a chuck section 10 capable of holding a pile by a hydraulic cylinder 40 is provided on a lower side. Further, at the four corners of the vibration pile punching machine main body 1, there are provided buffer holding means 11 provided with holes into which the rods 5 can be loosely inserted. The rod 5 is loosely inserted.

The buffer 2 comprises an upper spring 7 and a lower spring 8. The upper spring 7 and the lower spring 8 are connected to the buffer holding means 1.
1 is loosely inserted into the rod 5 via
Thus, the vibration pile punching machine main body 1 is supported by the support 3 via the buffer 2. That is, the upper surface of the upper spring 7 contacts the lower end of the hanger portion 4, the lower surface of the upper spring 7 contacts the upper surface of the buffer holding means 11, and the upper surface of the lower spring 8 holds the buffer. Means 1
1, the lower surface of the upper spring 7 contacts the upper surface of the receiving seat 6, and the upper and lower springs 7,
8 is loosely inserted into the rod 5, whereby the vibrating pile punching machine main body 1 is elastically supported by the support 3 so that the vibration of the vibrating pile punching machine main body 1 is reduced to be transmitted to the support 3. It is.

The power supply line 12 is composed of a cabtire cable, and is connected to the drive unit 9 to transmit power to the vibration unit 9. Further, the power supply line 12 is hung on the hooking means 3a of the hanger part 4, and is held by a holding member 13 sandwiched between the two receiving seats 6, whereby the power supply line 12 is supported by the support member. 3 is attached. As shown in FIGS. 2 and 3, the holding member 13 holding the power supply line 12 is held between two adjacent seats 6 by vibration-proof rubber. This is performed by being sandwiched via the vibration member 14. Further, the length of the power supply line 12 between the hooking part hooked on the hooking means 3a and the held portion 12b held by the holding member 13 is determined by the length of the hooking means 3a, the holding member 13 and Is set to be substantially the same as the straight line distance of. Also,
Reference numeral 15 shown in FIGS. 1 and 2 denotes a hydraulic hose connected to the hydraulic cylinder 40 of the chuck unit 10. The hydraulic hose 15 is connected to the power supply line 12 suspended from the holding member 13.
And the fastener 16.

The vibrating pile punching machine according to the present embodiment has the above-described configuration, and a use example thereof will be described below. First, the vibrating pile punching machine of the present embodiment is hung by the hanging ring 4 a of the hanger unit 4 by a crane, and the pile 17 is held by the chuck unit 10. Then, after moving the vibratory pile punching machine of the present embodiment to a desired position, the driving unit 9 is operated to vibrate the vibratory pile punching machine body 1 in the vertical direction. As a result, the pile 17 sandwiched between the chuck portions 10 hits the ground. At this time, the transmission of the vibration of the vibrating pile punching machine body 1 to the support 3 can be reduced by the buffering property of the buffer 2. In addition, the power supply line 12 includes the hooking portion and the held portion 1.
Since the length between the power supply line 2b and the holding member 13 is substantially the same as the linear distance between the hooking means 3a and the holding member 13, the bending of the power supply line 12 is small. There is no damage due to careless contact with the main body 1 and the buffer 2. The power supply line 12 is held by a holding member 13,
Since the power supply line 12 is sandwiched between the two adjacent seats 6 via the vibration isolating member 14, the vibration of the support 3 by the vibrating pile punching machine main body 1 is transmitted to the power supply line 12. Thus, the load on the power supply line 12 can be reduced. In particular, since the holding member 13 is sandwiched between the two adjacent seats 6 via the vibration isolating member 14, the two seats 6 vertically vibrate in different phases, and the support 3 vibrates including the rotation direction. , The vibration can be prevented from being transmitted to the power supply line 12, and the load on the held portion 12b of the power supply line 12 can be reduced. As a result, damage to the power supply line 12 can be further prevented. Further, even in the above vibration state, the linear distance between the hooking means 3a and the holding member 13 is kept constant, and the length between the hooking portion of the power supply line 12 and the held portion 12b is equal to the length of the hooking. Since the linear distance between the means 3a and the holding member 13 is substantially the same, no unnecessary load is applied to the portion where the power supply line 12 is hooked.

In the present embodiment, the hanger 4
In the above description, four rods 5 are hung, but the vibrating pile punching machine according to the present invention is not limited to this. In short, the vibrating pile punching machine body 1 is supported by the support 3 via the buffer 2. Whatever is done is good. In addition, it is also an essential requirement of the present invention that the power supply line 12 is hung on the hanger portion 4 as in the present embodiment, and the holding member 13 holding the power supply line 12 is sandwiched between the two seats 6. The point is not the power supply line 1
It is sufficient that 2 is held by the support 3 via a vibration isolating member 14.

The inventor of the present invention applied for a power supply apparatus having the configuration of the embodiment described above with reference to FIGS. 1 to 3 and then industrially produced the power supply apparatus for practical use. As a result of the improvement research, it was confirmed that there is room for further rationalization and improvement of the series of inventions described above with reference to FIGS. 1 to 3 (for convenience of explanation, referred to as inventions of the first group). did. That is, (a) the power supply line (cabtire cable) is damaged by vibration in the conventional example shown in FIG. 7 because the part where the power supply line 12 is suspended in the air vibrates as a string. Is, for example, a portion 12f indicated by an X mark. Damage due to vibration of this portion can be caused by connecting the power supply line 12 to the seat 6 through the vibration isolating member 14 shown in FIG.
(For members of the same vibration system as the hanger part 4)
Prevented by holding. In this case, hooking the intermediate portion between the held portion 12b and the connection portion 12a to the support 3 by the hooking means 3a is not an indispensable configuration. For example, in FIG.
Considering the case where the portion between the held portion 12b and the connection portion 12a is slightly bent in an arc shape without being hooked on the hanger portion 4, the distance between the held portion 12b and the connection portion 12a is considered. If the relationship between the natural frequency of the power supply line 12 and the oscillation frequency of the vibrating pile punching machine body 1 is appropriately set, the hooking means 3a can be omitted.

(B) In the known example of FIG.
2 is damaged by the drawer 12e because an obstacle collides. The reason that the damage due to the collision of the obstacle cannot be prevented as a matter of fact only by careful handling is that the power supply line has a length of 30 to 50. This is because it is a long member having a length of up to a meter, and is therefore heavy and difficult to handle. From this point of view, if the handling operation is facilitated by improving the structure, it is expected that the power supply line will be effectively prevented from being damaged.

Next, a power supply method according to the second group of the invention and a power supply device according to the third group of the invention will be described with reference to FIGS. 4 to 6 sequentially. FIG. 4 is a partially cutaway front view showing an improved embodiment of the power supply device of the embodiment shown in FIG. 1 described above. The differences between the embodiment of FIG. 4 and the embodiment of FIG. 1 will now be described. The power supply line 12 of the present embodiment (FIG. 4) has its connection portion 12a connected to the drive portion 9 and its held portion 12b is connected to the vibration isolating member 14 without being hung on the hanger portion 4. It is attached to the receiving seat 6 through. The technical meaning of the seat 6 in this example is “a member that is fixedly attached to the hanger portion 4 and belongs to the same vibration system”.

The power supply line 12 of this embodiment (FIG. 4)
A cabtire cable as a flexible insulated wire is a long member having a total length of 30 to 50 meters,
Handling of the power supply line 12 during transport is not easy. Therefore, in the present embodiment, the power supply line 12 is divided and connected detachably by a wire connector 37.
As the electric wire connector 37, a commercially available product can be appropriately selected and used according to the specifications such as the number of cores of the power supply line 12 made of a cabtire cable, the current capacity, and the like. In consideration of the above, it is desirable that the waterproof type and the high anti-pull-out force (that is, it is not a simple plug-in type but does not separate even when subjected to a simple pulling force such as a screw connection type) are desirable. .

The problem that the power supply line 12 is difficult to handle because it is a long and heavy member is the same for the hydraulic hose 15. Looking at the actual situation at the work site, power supply line 1
When the power supply line 12 is detachably connected by the electric wire connector 37, the power supply line 12 is easy to handle, which is effective for preventing breakage at the time of transportation. Handling difficulties are a noticeable drawback.
Therefore, in this embodiment (FIG. 4), the hydraulic hose 15 is divided and connected detachably by a pipe joint 38.

According to the embodiment shown in FIG. 4, the power supply line 12 and the hydraulic hose 15, which are long and heavy members, are divided and detachably connected. It is easy to handle during transportation and is effective in preventing damage due to poor handling. However, in this embodiment (FIG. 4), the following problems remain. That is, the divided portion is connected to the wire connector 3
In the state where the power supply line 12 is connected at 7, the power supply line 12 is supported by the anti-vibration member 14 so that there is no danger that the power supply line 12 will be damaged by vibration during operation. However, the hydraulic hose 15 is provided with the chuck portion 10 which vibrates violently with the vibrating pile punching machine body 1.
Because it is attached to and suspended, there is a danger that it will suffer damage due to vibration.

FIG. 5 shows an improved embodiment of the power supply device of the embodiment shown in FIG. 4 described above, in which the power supply line and the hydraulic hose are drawn through a vibration isolating member. It is sectional drawing. In FIG. 5, constituent members indicated by the same reference numerals and names as those in FIG. 4 are the same or similar to those in FIG.
However, FIG. 4 is schematically illustrated because the scale is small, and FIG. 5 is realistic because the scale is large. The seat 6 shown in FIG. 5 is not fixed to the vibrating pile punching machine main body 1 as shown in FIG. ) Is also a blocked component. The vibrating pile punching machine provided with the power supply device of the present embodiment has four rods 5, and the receiving seats 6 are fixed to the lower ends of the rods 5. The four rods 5 are front views (for example, FIG.
In both FIG. 4) and the side view (for example, FIG. 2), two wires appear. This is because in each drawing, two rods 5 overlap in the depth direction of the paper surface and are drawn as one rod 5. In FIG.
Two receiving seats 6 fixed to each of the two rods 5 overlapping in the front view (for example, FIG. 4) show the cross section. The power supply line 12 includes a pair of holding members 13a, 13
b, the holding members 13a, 1
Both ends of 3b are elastically supported by the receiving seat 6 via the rubber vibration isolating members 14, respectively. In this embodiment, two hydraulic sockets 35 are fixed to the holding member 13b. In the present invention, the hydraulic socket is a general term for members capable of connecting and connecting two hydraulic hoses with a connection mouthpiece, and even a straight socket as a piping term, an elbow,
A modified socket may be used. Two hydraulic hoses are used to supply hydraulic power to the backward-acting hydraulic cylinder of the chuck portion (not shown in FIG. 5).
It is divided into a short 15a and a hydraulic hose / long 15b.
One end of the hydraulic hose short 15a is connected to the hydraulic cylinder (a member corresponding to reference numeral 40 in FIG. 4),
The other end is connected to a hydraulic socket 35. One end of the hydraulic hose 15b is connected to the hydraulic socket 35 to communicate with the hydraulic hose 15a, and the other end is connected to a hydraulic source via an operation valve (not shown). According to this embodiment (FIG. 5), the hydraulic hose, length 1
This is convenient because the 5b can be detached from the hydraulic socket 35 and appropriately wound and transported. In this case, hydraulic hose length 1
Since 5b is a long member having a length of 30 to 50 meters, the amount of oil contained in the hose is also in the unit of liter. Therefore, when the hydraulic hose length 15b is removed from the hydraulic socket 35, it is necessary to take measures such as mounting a blind plug (not shown) on the hose base. In order to save the trouble of such treatment, it is desirable to attach a base having a self-sealing function to the hydraulic hose / length 15b. For the same reason, it is desirable that the pipe joint 38 shown in FIG.

FIG. 6 is a front view of a practical simplified power supply device in which the main components of the power supply device according to the embodiment shown in FIG. 4 are used as they are and components that can be omitted are omitted. It is. In FIG. 6, the same reference numerals as in FIG. 4 denote the same or similar components as in the embodiment of FIG. Next, the difference between the present embodiment (FIG. 6) and the embodiment of FIG. 4 will be described.
In FIG. 6, the connecting portion 12a of the power supply line 12 and the wire connector 3
7 is connected to the hanger portion 4 by the hooking means 3a.
And held it. The above-mentioned hanger part 4 is not fixed to the vibrating pile punching machine main body 1,
The hanger part 4 is elastically connected through
Does not vibrate as violently as the vibrating pile punching machine body 1. For this reason, by attaching the power supply line 12 to the hanger portion 4, damage due to vibration of the power supply line 12 can be significantly reduced. Further, in the embodiment of FIG. 6, the power supply line 12 is
The connection is detachable by the hydraulic hose 15
Is divided and connected detachably with the fitting 38,
The handling of the power supply line 12 and the hydraulic hose 15 during transportation is easy, and it is also effective in preventing damage due to poor handling. Although not shown, as an improvement of the embodiment of FIG. 6, when the hooking means 3a is formed in a large-diameter cylindrical shape so as to grip the power supply line 12 via a rubber bush for buffering, It is even more effective in preventing damage due to wire vibration.

[0028]

According to the present invention, the connecting portion (12a) of the power supply line (12) composed of the flexible insulated wire is connected to the vibrating drive unit (9). (12) supports (3) via a vibration isolating member (14)
(Or attached to a member belonging to the same vibration system as the support (3)). The support (3) is provided with a buffer (2) with respect to the main body (1) of the vibrating pile punching machine.
The support (3) is elastically supported via
Does not vibrate violently like the vibratory pile punching machine body (1). The power supply line (1) attached to the support (3) which does not vibrate violently via the vibration isolating member (14).
In 2), the held portion (12b) hardly receives vibration even if the connection portion (12a) receives vibration. The connecting part (12a) and the held part (12) of the power supply line (12)
Since the length between b and b) is relatively short, no resonance phenomenon occurs in the power supply line during this time, and there is no risk of damage due to vibration. Further, since the held portion (12b) is hardly subjected to vibration, there is no possibility that the power supply (not shown) side of the held portion (12b) is damaged by the vibration.

Further, when the above-described configuration is implemented, if the power supply line (12) is divided and detachably connected by an electric wire connector (37), not only damage due to vibration of the power supply line but also improper handling is caused. Can also be prevented. At the same time, if the hydraulic hose (15) is also divided and detachably connected by the pipe joint (38), the handling of the hydraulic hose becomes easy, so that damage due to poor handling of the hydraulic hose does not occur.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a power supply device in a vibration pile punching machine according to the present invention, which is partially cut and drawn.

FIG. 2 is a side view of the power supply device according to the embodiment, which is partially cut and drawn.

FIG. 3 is an enlarged sectional view of the vicinity of a power supply line holding portion in FIG. 2 illustrating a side view of the embodiment.

FIG. 4 is a partially cutaway front view showing an improved embodiment of the power supply of the embodiment shown in FIG. 1 above.

FIG. 5 is a horizontal sectional view showing an improved embodiment of the power supply device of the embodiment shown in FIG. 4 and showing a portion where a power supply line and a hydraulic hose are held via a vibration isolating member. It is.

6 is a front view of a practical simplified power supply device in which the main components of the power supply device according to the embodiment shown in FIG. 4 are used as they are and components that can be omitted are omitted.

FIG. 7 is a front view showing a state in which a pile is gripped by a conventional vibrating pile punching device, which is partially cut and drawn.

FIG. 8 is a front view of a known power supply device configured to prevent vibration of the vibration pile punching machine main body from transmitting to the power supply line.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vibration pile punching machine main body, 2 ... Buffer body, 3 ... Support body, 3a
... Hanging means, 4 ... Hanger part, 4a ... Suspension ring, 4b ... Arm, 5 ... Rod, 6 ... Receptacle, 7 ... Upper spring, 8 ...
Lower spring, 9: drive unit, 10: chuck unit, 11
... buffer holding means, 11a ... through-hole, 12 ... power supply line,
12a: connection portion, 12b: held portion, 13, 13
a, 13b: holding member, 14: anti-vibration member, 15: hydraulic hose, 15a: hydraulic hose, short, 15b: hydraulic hose,
Length, 16 ... Tensioner, 17 ... Pile, 35 ... Hydraulic socket, 3
7 ... electric wire connector, 38 ... pipe joint, 39 ... hydraulic socket, 40 ... hydraulic cylinder.

Claims (14)

(57) [Claims] 1. A vibrating pile punching machine main body (1) that can be vibrated in a vertical direction by a drive unit (9), and a support for supporting the vibrating pile punching machine main body (1) from above through a buffer (2). In a vibratory pile punching machine comprising a body (3), a power supply line (12) connected to the driving section (9) is connected to a vibration isolator (1).
4) and the connecting portion (12a) of the power supply line (12) to the drive section (9) and the vibration isolating member (14). The power supply line (12) is provided between the power supply line (12) and the held portion (12b) of the power supply line (12) held by the support (3) via the support (3). A power supply device for a vibratory pile punching machine, wherein 2. The support (3) is provided with the hooking means (3).
a hanger part (4) having a), and the hanger part (4)
A rod (5) hanging down from the hanger portion and being loosely inserted into the buffer (2);
And a receiving member (6) fixed to a lower portion of the main body and supporting the vibrating pile punching machine body (1) via the buffer (2), and a holding member (6) for holding the power supply line (12). 1
The power supply device in the vibratory pile punching machine according to claim 1, wherein 3) is connected to the seat (6) via a vibration isolation member (14). 3. The support (3) is provided with the hooking means (3).
a hanger part (4) having a), and the hanger part (4)
Two or more rods (5) that are fixed to the hanger part and are loosely inserted into the buffer (2), respectively.
A seat (6) fixed to a lower portion of each rod (5), and a holding member (13) holding the power supply line (12) is provided with two seats via a vibration isolating member (14). (6)
The power supply device in the vibratory pile punching machine according to claim 1, wherein the power supply device is sandwiched by: 4. The power supply device for a vibrating pile punching machine according to claim 1, wherein said vibration isolating member (14) is made of a vibration isolating rubber. 5. A held portion (12b) of a power supply line (12) held on said support (3) via said vibration isolating member (14) and said hook of said power supply line (12). The length of the power supply line (12) between the power supply line (12) and the holding portion (1) for holding the power supply line (12)
The power supply device in the vibratory pile punching machine according to any one of claims 1 to 4, wherein the length is set to be substantially the same as the linear distance between the third and the engaging means (3a). 6. A vibrating pile punching machine body (1) driven by a driving unit (9) having an electric motor to generate vertical vibrations.
And the vibration pile punching machine body (1) via a buffer (2)
A method for supplying electrical power to a vibrating pile punching machine comprising a support (3) for supporting a power supply line, wherein a connection portion (12a) of a power supply line (12) comprising a flexible insulated wire is driven. An elastic vibration isolator (14) connected to the electric motor of the section (9) and connecting the power supply line (12) to the support (3) or a member fixed to the support; A method for supplying power to a vibrating pile punching machine, characterized in that the power supply method is used for mounting. 7. With respect to a place where the power supply line (12) is attached to the support (3) via a vibration isolating member (14), the power supply line (12) is located at a place opposite to the connection part (12a). The power supply line (12) is divided, and both of the divided power supply lines are connected to the electric wire connector (37).
Characterized by being detachably connected to each other by
A power supply method in the vibrating pile punching machine according to claim 6. 8. A chuck unit (10) is provided below the vibrating pile punching machine body (1), and a hydraulic hose (15) is connected to a hydraulic device for driving the chuck unit. The method according to claim 7, characterized in that (15) is divided in the vicinity of the electric wire connector (37), and each of the divided hydraulic hoses is detachably connected to each other by a pipe joint (38). A power supply method in the vibrating pile punching machine described in the above. 9. A pile driving machine main body (1) driven by a driving unit (9) having an electric motor to generate vertical vibrations, and said pile driving machine main body (1) is mounted on a support (3). A device for supplying electric power to a vibrating pile punching machine having an elastically supported shock absorber (2), comprising: a connection portion (12a) of a power supply line (12) made of a flexible insulated wire; Is connected to the electric motor of the drive unit (9), and the power supply line (12) is formed of an elastic material with respect to the support (3) or a member fixed to the support. A power supply device for a vibrating pile punching machine, wherein the power supply device is attached via a vibration damping member (14) provided. 10. A plurality of vertical rods (5) near the upper ends are attached to the support (3), and the vertical rods are mounted on a vibrating pile punching machine body (1). And loosely fits and penetrates a through-hole (11a) provided in a bracket-shaped shock absorber holding means (11) fixed to the bracket, and has a seat (6) at the lower end of the vertical rod (5). ) Is fixed, and a root portion where the rod (5) is fixed to the support (3) and the buffer holding means (1) are fixed.
1), an upper spring (7) is compression interposed, and a lower spring (8) is compression interposed between the receiving seat (6) and the buffer holding means (11). Power supply device in a vibratory pile punching machine according to claim 9, characterized in that said power supply line (12) is supported by said seat (6) via a vibration isolating member (14). . 11. A pair of holding members (13a, 13b) for sandwiching and holding the power supply line (12) are provided, and the pair of holding members (13a, 13b) provide the power supply line. Each of the two ends of the pair of holding members is attached to each of the two seats (6) via the vibration isolating member (14) in a state where the wire is sandwiched. The power supply device in the vibratory pile punching machine according to claim 10. 12. The power supply line (12) is divided at a position opposite to the connection portion (12b) with respect to a position where the power supply line (12) is attached via a vibration isolating member (14), and is divided. Power supply line is a wire connector (37)
Characterized by being detachably connected by
A power supply device for the vibrating pile punching machine according to any one of claims 9 to 11. 13. A chuck (10) having a hydraulic drive means is provided below the vibrating pile punching machine body (1), and a hydraulic hose (15) is connected to the hydraulic drive means. The hydraulic hose is divided, and the divided hydraulic hoses are detachably connected by a pipe joint (38).
A power supply device in the vibrating pile punching machine according to any one of the above. 14. A chuck (10) having hydraulic drive means is provided below the vibrating pile punching machine body (1), and a hydraulic hose (15) is connected to the hydraulic drive means. The hydraulic hose is divided into a hose short (15a) and a hose long (15b), and at least one of the pair of holding members (13a, 13b) is connected to a hydraulic hose for connection to a hydraulic hose. A hydraulic socket (39) is attached, and one end of the hose short (15a) is connected to the hydraulic drive means, and the other end of the hose short (15a) is connected to the hydraulic socket (39). And one end of the hose length (15b) is connected to the hydraulic socket (39).
A power supply device in the vibrating pile punching machine according to claim 11.