JP3817345B2 - Hanger equipment for construction machinery - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hanger device for a construction machine that hangs a hose or a cable that connects between an excavating tool that moves up and down and a construction machine main body, and prevents the hose and the cable from being tangled or twisted.
[0002]
[Prior art]
Conventionally, a hydraulic or cloud hose or a power or signal cable that connects the excavator that moves up and down along a standing leader and the construction machine body is hung on a reel that is rotatably supported. 2. Description of the Related Art Reel devices for construction machines that are hung with wires to prevent tangling or twisting of hoses and cables are used.
[0003]
[Problems to be solved by the invention]
However, in such a conventional apparatus, when the number of hoses and cables is large, the width of the reel becomes large, the apparatus becomes large, and there is a problem in the construction of the adjacent portion.
An object of the present invention is to provide a small-sized hanger device for a construction machine and enable construction of an adjacent portion.
[0004]
[Means for Solving the Problems]
In order to achieve this problem, the present invention has taken the following measures in order to solve the problem. That is,
In a hanger device for a construction machine that hangs a plurality of hoses or cables that connect between a drilling tool that is raised and lowered along a standing leader and a construction machine body,
It has a hanger body hung on the wire from the winch,
An outer layer guide mechanism in which a plurality of outer layer rotating bodies on which the hose or the cable is hung is arranged on an arc is provided in the hanger body, and one side surface of the outer layer guide mechanism is opened,
Furthermore, an inner layer guide mechanism having an inner layer rotating body on which the hose or the cable is hung is disposed inside the outer layer rotating body, and the inner layer guide mechanism is movably supported on the opening side. It is a mechanical hanger device.
[0005]
The hanger body may be slidably supported along the leader. Alternatively, a tension receiving wire having one end fastened to the excavator side and the other end fastened to the construction machine body side may be rotated on the inner layer. It is good also as a structure hung on the body or the outer layer rotating body.
[0006]
Further, the inner layer guide mechanism may be configured such that a hollow member is slidably attached to a support shaft erected on the hanger body, and the inner layer rotating body is rotatably supported by the hollow member.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, reference numeral 1 denotes a self-propelled construction machine main body, and a leader 2 is supported by a stay 4 and a catching hawk 6 so as to be tilted up and down. Two elongated guide rails 8 and 10 (see FIG. 4) are laid on the front surface of the reader 2 along the longitudinal direction thereof.
[0008]
A main winch 12 is mounted on the construction machine main body 1, and a main wire 14 drawn from the main winch 12 is drawn along the leader 2, and a sheave 16 rotatably supported in the middle of the leader 2 is provided. Via a sheave 18 rotatably supported on the upper end of the reader 2. Furthermore, after the main wire 14 is stretched between the hanging sheave 20 and the sheave 22 provided at the upper end of the reader 2, one end thereof is fixed to the upper end of the reader 2.
[0009]
The hanging sheave 20 is connected to the upper end of the kelly bar 24. The kelly bar 24 is a multi-stage type including an outer kelly bar and an inner kelly bar. Further, as shown in FIG. 1, the guide rails 8 and 10 support a swaying table 26 so as to be slidable. The suspension table 26 is configured to slidably surround the outer periphery of the kelly bar 24.
[0010]
On the other hand, as shown in FIG. 1, a drilling tool 28 is attached to the lower end of the kelly bar 24, and the drilling tool 28 includes a disc-shaped drilling blade 30 that is rotationally driven by a built-in hydraulic motor (not shown). Further, a drilling blade 32 in which a drilling bit is implanted in a link of a chain that is rotationally driven by a hydraulic motor is also provided.
[0011]
One end of a plurality of hydraulic hoses 34, 36 is connected to the excavator 28, and the other end of the hydraulic hoses 34, 36 is connected to the construction machine main body 1. Further, one end of a cloud hose 38 or a hydraulic drain hose 40 is connected to the excavator 28, and the other ends of these hoses 38, 40 are connected to the construction machine main body 1.
[0012]
On the other hand, as shown in FIG. 4, the hanger body 42 is slidably supported on the guide rails 8 and 10 via a pair of guide gibs 44 and 46. A sheave block 52 suspended from a wire 50 drawn along a leader 2 from a winch 48 mounted on the construction machine main body 1 by a sheave 49 or the like is connected to the hanger main body 42 via pins 54. .
[0013]
The hanger body 42 is attached with outer cover members 56 (only one is shown) formed in an arc shape on both side surfaces thereof. The lower part of the outer cover member 56 is opened, and the side surface thereof is also opened. A plurality of roller shafts 58 are supported in an arc shape along the outer periphery of the outer cover member 56, and a cylindrical outer layer rotating body 60 is rotatably attached to each roller shaft 58.
[0014]
In the present embodiment, three outer layer rotating bodies 60 are mounted on each roller shaft 58, and grooves 62 are formed on the outer periphery of each outer layer rotating body 60. Hydraulic hoses 34 and 36 and a cloud hose 38 are hung on the outer layer rotating bodies 60, respectively. In the present embodiment, the outer layer guide mechanism 61 is configured by the outer cover member 56, the roller shaft 58, and the outer layer rotating body 60.
[0015]
On the other hand, a support shaft 64 parallel to the roller shaft 58 is fixed to the hanger body 42, and the support shaft 64 is provided at the center of the roller shaft 58 arranged in an arc shape. A hollow member 66 is slidably mounted on the support shaft 64 in the axial direction, and a plurality of inner layer rotating bodies 68 and 70 using sheaves are rotatably supported on the hollow member 66 via bearings 72 and 74. Has been.
[0016]
A slit 76 is formed at the tip of the support shaft 64, and a retaining member 78 is inserted into the slit 76. A long hole 80 is formed in the longitudinal direction of the retaining member 78, and a pin 82 attached to the support shaft 64 is inserted into the long hole 80.
[0017]
As shown in FIG. 2, in the state where the retaining member 78 stands vertically, the hollow member 66 hits the retaining member 78, and the sliding of the hollow member 66 is restricted, so that the hollow member 66 does not come off the support shaft 64. It is configured as follows. Then, the retaining member 78 is pulled up in the direction indicated by the arrow, and is swung around the pin 82 so as to be parallel to the support shaft 64. Thereby, the hollow member 66 is slid along the support shaft 64 so that the inner layer rotating bodies 68 and 70 can be pulled out of the outer cover member 56.
[0018]
On the other hand, a tension receiving wire 84 is hung on the inner layer rotating body 68, and one end of the tension receiving wire 84 is fastened to the excavator 28 and the other end is fastened to the construction machine main body 1. Further, a hose 40 for hydraulic drain is hung on the inner layer rotating body 70. By pulling out the inner layer rotating bodies 68 and 70 to the outside of the outer cover member 56, the tension receiving wire 84 and the hose 40 can be easily hung on the inner layer rotating bodies 68 and 70. In the present embodiment, the support shaft 64, the hollow member 66, the inner layer rotating bodies 68 and 70, the bearings 72 and 74, and the retaining member 78 constitute an inner layer guide mechanism 86.
[0019]
Next, the operation of the hanger device for a construction machine of this embodiment described above will be described.
First, when high-pressure hydraulic oil is supplied from the construction machine body 1 to the excavator 28 via the hydraulic hoses 34 and 36, the excavating blades 30 and 32 are driven. When the main wire 14 of the main winch 12 is drawn out, the excavator 28 starts to descend and excavation by the excavating blades 30 and 32 is performed.
[0020]
As the excavation progresses, the excavator 28 continues to descend, whereby the tension receiving wire 84 is pulled by the excavator 28. Therefore, an action force for lowering the hanger body 42 is exerted by the tension receiving wire 84 via the inner layer rotating body 68, the bearing 72, the hollow member 66, and the support shaft 64. By simultaneously feeding the wire 50 of the winch 48, the hanger body 42 is lowered along the guide rails 8 and 10. At that time, the lowering amount of the hanger body 42 is halved with respect to the lowering amount of the excavator 28.
[0021]
At that time, since relative movement occurs between the hydraulic hoses 34 and 36, the hose 38 for the cloud and the hanger body 42, the outer layer rotating body 60 is prevented from rotating and rubbing the hoses 34, 36 and 38. To do. Similarly, the drain hose 40 prevents the inner layer rotating body 70 from rotating and rubbing the hose 40. The same applies when the main winch 12 is driven to wind up the main wire 14 and the excavator 28 is raised.
[0022]
It is very difficult to control the feeding amount of the wire 50 of the winch 48 to half the feeding amount of the main wire 14 of the main winch 12, and if the feeding amount of the wire 50 of the winch 48 is large, the hoses 34, 36, 38, 40 will sag and cause tangles. In addition, if the amount of feeding of the wire 50 is small, excessive tension is applied to the hoses 34, 36, 38, and 40, which may cause breakage.
[0023]
The winch 48 is operated by applying a pressure in the hoisting direction to the hydraulic motor (not shown) so that the hanger body 42 does not drop, and pulls the hanger body 42 by the tension receiving wire 84 to move the sheave block 52. By pulling the wire 50 out of the winch 48, the hoses 34, 36, 38, 40 follow the lowering of the excavating tool 28 without sagging and without applying excessive tension. If the hoses 34, 36, 38, 40 have sufficient strength, the tension receiving wire 84 may not be used.
[0024]
Further, by supporting the hanger body 42 slidably on the guide rails 8 and 10 via the guide gibs 44 and 46, the hanger body 42 does not swing back and forth and right and left as it goes up and down, and the hoses 34, 36, and 38. , 40 can be prevented from coming into contact with the earth wall and being damaged.
[0025]
The present invention is not limited to such embodiments as described above, and can be implemented in various modes without departing from the gist of the present invention.
[0026]
【The invention's effect】
As described above in detail, the hanger device for a construction machine according to the present invention can hose or cable in multiple layers by the outer layer guide mechanism and the inner layer guide mechanism, so that the width of the device can be reduced and the size can be reduced. Play. In addition, since the inner layer guide mechanism is movably supported, it is possible to easily hang a hose or a cable on the inner layer rotating body even in a multilayer structure.
[0027]
By supporting the hanger body slidably along the leader, it is possible to prevent the hanger body from swinging and to prevent the hose or cable from coming into contact with the earth wall. Further, by providing a tension receiving wire, it is possible to prevent excessive tension from being applied to the hose or cable. Furthermore, by inserting the hollow member slidably on the support shaft, the inner layer rotating body can be moved with a simple structure.
[Brief description of the drawings]
FIG. 1 is a side view of a construction machine using a construction machine hanger device as an embodiment of the present invention.
FIG. 2 is a front view showing in cross section the main part of the hanger device for a construction machine according to the present embodiment.
3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a plan view showing a cross section of a main part of the hanger device for a construction machine according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Construction machine main body 2 ... Leader 12 ... Main winch 24 ... Kelly bar 28 ... Excavator 34, 36, 38, 40 ... Hose 42 ... Hanger main body 48 ... Winch 50 ... Wire 60 ... Outer layer rotating body 61 ... Outer layer guide mechanism 66 ... Hollow members 68, 70 ... inner layer rotating body 78 ... retaining member 84 ... tension receiving wire 86 ... inner layer guide mechanism

Claims (4)

In a hanger device for a construction machine that hangs a plurality of hoses or cables that connect between a drilling tool that is raised and lowered along a standing leader and a construction machine body,
It has a hanger body hung on the wire from the winch,
An outer layer guide mechanism in which a plurality of outer layer rotating bodies on which the hose or the cable is hung is arranged on an arc is provided in the hanger body, and one side surface of the outer layer guide mechanism is opened,
Furthermore, an inner layer guide mechanism having an inner layer rotating body on which the hose or the cable is hung is disposed inside the outer layer rotating body, and the inner layer guide mechanism is movably supported on the opening side. Machine hanger device. 2. The hanger device for a construction machine according to claim 1, wherein the hanger body is slidably supported along the leader. The construction according to claim 1 or 2, wherein a tension receiving wire having one end fastened to the excavator side and the other end fastened to the construction machine main body is hung on the inner layer rotating body or the outer layer rotating body. Machine hanger device. 2. The inner layer guide mechanism is characterized in that a hollow member is slidably inserted on a support shaft erected on the hanger body, and the inner layer rotating body is rotatably supported on the hollow member. The hanger apparatus for construction machines according to claim 3.

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