JPS6138347Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a cable, especially a repeater.
The present invention relates to a tire-type cable laying machine suitable for laying cables having the following characteristics to the seabed and pulling them up from the seabed.

In a conventional tire-type cable laying machine, as shown in Fig. 1, each tire a is rotationally driven by a dedicated hydraulic motor b directly connected to it, and the tire a is connected to the cable k. The crimping and the opening thereof were performed by closing and opening the crimping lever c using the crimping cylinder d.

However, in such a conventional tire-type cable laying machine, the required number of hydraulic motors b and crimping cylinders d is large, and piping and assembly thereof require a lot of effort, as well as an increase in weight and cost. There is a problem.

The present invention aims to solve these problems by making it possible to efficiently drive the rotation of the tires using a simple tire drive means, and also to use a lever to raise and lower the upper frame on which the tires are mounted. To provide a tire-type cable-laying machine which can perform the work efficiently using suspension means, and which can sufficiently prevent the upper frame from swinging and maintain its open state stably. .

For this reason, the tire-type cable laying machine of this invention is
A plurality of tires are rotatably mounted on the upper frame, and a plurality of tires are rotatably mounted on the lower frame to sandwich the cable together with the tires, and each of the upper frame and the lower frame has: A sprocket and chain are provided between the hydraulic motor and the rotating shaft of each tire to rotate the plurality of tires in conjunction with each other by a hydraulic motor, and the upper frame is suspended via a lever pivotally connected to the sprocket and chain. a lever-suspended upper frame drive mechanism capable of raising and lowering the upper frame; and a stopper chain for stabilizing the upper frame in an open state in which the tires of the upper frame are moved upwardly away from the tires of the lower frame; It is characterized by being mounted between an upper frame and a lower frame.

Below, a tire-type cable laying machine as an embodiment of the present invention will be explained with reference to the drawings.
FIG. 3 is a plan view thereof, FIG. 3 is a side view thereof, FIG. 4 is a horizontal sectional view taken along the - line in FIG. 3, and FIG. 5 is a side view showing the open state.

As shown in FIGS. 2 to 5, an upper frame 6 on which three tires 1 are rotatably mounted is pivotally supported at its upper center portion by a support shaft 7a at the tip of an arm 7. The arm 7 is supported at its center by a support shaft 10 on a support stand 11. The base end of the arm 7 is pivotally connected to the piston rod 2a of the hydraulic cylinder 2 with a pin 2b, and the lower end of the hydraulic cylinder 2 is attached to the fixing member 12 on the foundation with the pin 1.
It is pivoted at 2a.

Further, a lower frame 8 on which three tires 1 are rotatably mounted is provided on the foundation, and a cable k is held between each tire 1 of the upper frame 6 and the corresponding tire 1 of the lower frame 8. I'm getting used to it.

Furthermore, the upper frame 6 and the lower frame 8
In each of these, a hydraulic motor 5 is provided at the end of each frame 6, 8 so that each tire 1 can be rotated in conjunction with each other, and a sprocket 3a, 3
b, 3c, 3d and chains 4a, 4b are interposed.

As shown in FIG. 5, the upper frame 6 is raised.
is designed to be restrained by a stopper chain 9, which is mounted between an upper frame 6 and a lower frame 8 on the opposite side from the position of the hydraulic motor 5. The upper frame 6 is stably held in its open state.

With the above-described structure, when the upper frame 6 equipped with the three tires 1 is opened, the piston rod 2a of the fluid pressure cylinder 2 is retracted, so that the upper and lower tires are moved from the compressed state to the open state shown in FIG. 5. However, since the end where the hydraulic motor 5 is attached is heavy, at the beginning, the end of the upper frame 6 where the chain 9 is located rises first.
When the chain 9 is tensioned, the end of the hydraulic motor 5 is raised, and finally the tire 1 of the upper frame 6 is moved to the lower frame 8, as shown in FIG.
In the open state away from the tires 1, the upper frame 6 is kept horizontal and stable.

Also, connect the cable k to the tire 1 of the lower frame 8.
When lowering the upper frame 6 with the upper frame 6 placed on the It is in a state where it is clamped and pressed by the tires 1.

Then, by operating the upper and lower hydraulic motors 5,
Each tire 1 is driven to rotate and the cable k is fed out for laying or hoisted up for storage in a ship or the like.

In addition, each sprocket 3a, 3b, 3c, 3d
have the same pitch circle diameter, so each tire 1 is driven to rotate in the same direction at the same speed.

In this way, according to the tire-type cable laying machine of the present invention, a plurality of tires 1 can be rotationally driven by one hydraulic motor 5 in each of the upper and lower frames 6, 8, so that piping, etc. This has the advantage of reducing man-hours and greatly simplifying the structure.

In addition, a plurality of arms 1 are attached to the upper frame 6 and the lower frame 8, respectively, and lever-suspended upper frame drive mechanisms 2, 2a, 2b,
7, 7a, 10, 11, and 12 have the advantage that the operations can be performed all at once with simple operation, and furthermore, the upper frame suspended by the lever in the open state is stably held by the stopper chain 9. .

[Brief description of the drawings]

Fig. 1 is a perspective view showing a conventional tire-type cable laying machine, Figs. 2 to 5 show a tire-type cable laying machine as an embodiment of the present invention, Fig. 2 is a plan view thereof, and Fig. 3 The figure is its side view, and Figure 4 is the 3rd side view.
A horizontal sectional view taken along the - line in the figure, and FIG. 5 is a side view showing the open state. 1...Tire, 2...Fluid pressure cylinder, 2a...
...Piston rod, 2b...Pin, 3a, 3b,
3c, 3d... Sprocket, 4a, 4b... Chain, 5... Hydraulic motor, 6... Upper frame, 7... Lever, 7a... Support shaft, 8... Lower frame, 9... Chain for stopper, 10...
Support shaft, 11...Support stand, 12...Fixing member, 12
a...Pin, k...Cable.

Claims (1)

[Scope of utility model registration request] A plurality of tires are rotatably mounted on the upper frame, and a plurality of tires are rotatably mounted on the lower frame to sandwich the cable together with the tires, and each of the upper frame and the lower frame has: A sprocket and chain are provided between the hydraulic motor and the rotating shaft of each tire to rotate the plurality of tires in conjunction with each other by a hydraulic motor, and the upper frame is suspended via a lever pivotally connected to the sprocket and chain. a lever-suspended upper frame drive mechanism capable of raising and lowering the upper frame; and a stopper chain for stabilizing the upper frame in an open state in which the tires of the upper frame are moved upwardly away from the tires of the lower frame; A tire-type cable laying machine, characterized in that it is mounted between an upper frame and a lower frame.