JPS58142090A - Device for laying tubular material onto bottom of water - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention is capable of safely and reliably laying a tubular object to the bottom of the water by using a device that feeds the tubular object completely into the water and a brake device that can adjust the tension of the tubular object according to the sea depth. This invention relates to a device that enables

Conventionally, when laying a tubular object in water + f, the tubular object is first sent into the water using a winch, etc., and when the tubular object is sent into the water by its own weight and becomes encased, it is installed as shown in Figure 1. The feed speed was controlled to prevent the sleeper (α) from running out of control of all the chain blocks (1st grade, played with strength, tubular material LC).

- However, with such conventional equipment, since the brake of the tubular material (el) cannot be applied quickly, it is difficult to adjust the continuous failure of feeding the tubular material (tc+), and there is a risk that the tubular material (1) may not be laid securely on the bottom of the water. There were problems such as the work being dangerous.

The present invention was made for the purpose of making it possible to safely, reliably, and quickly lay a tubular object to a waterway.
A pair of endless chain bodies capable of holding a tubular object, a drive device for rotating the chain bodies, and a brake device for fully controlling the rotation of the chain bodies. It is something.

1.゛Hereinafter, embodiments of the present invention will be described with reference to the drawings.

A pedestal (1) with an angle of inclination (α) relative to the horizontal plane (t) is installed on all ship decks, and a frame (2) installed on the pedestal (1).
), the entire frame (3) that can move somewhat along the slope of the frame (2) is placed, and a guide plate (4) is placed on the frame (2) side to prevent the frame (3) from moving laterally.
1, and as shown in Figure 5, attach the frame (
2) and (3) k' are fastened from the pole [6) K through the OT flexible cushioning material (5), and are attached to the front of the frame (3) to detect the tension in the axial direction of the cable (7). Install all load detectors (8) such as load cells.

On the frame (3), a frame (7) which can be moved in a direction perpendicular to the cable (7) @W when viewed from the plane by means of a hydraulic cylinder (9) and a frame αut fixedly attached.
The chain wheel (14 (15g) (146) (156)
f is fixed, and an endless caterpillar link (1k) i and a chain wheel (14b) (
4sb) to the endless caterpillar link (16b), and the vertical shaft (12g) (126) to the hydraulic motor drive unit f[(17g) (176) ) <15b) and brake device (18α
) (19α) (18b) (19b). Rollers (20 cL) (206) k that support the weight of the rollers (20 cL) are rotatably attached to the caterpillar links (16a) (166) at required intervals.

A winding machine ψυ for winding the lead wire is installed at the tip of the frame (2), and a vertical roller (H) is attached to the frame (F) installed between the winding machine ψ〃 and the frame (7). and a height-adjustable horizontal roller h are pivotally mounted, and a vertical roller (4) and a height-adjustable horizontal roller rod are pivotally mounted to a frame (e) disposed behind the frame (2). Dad, it's not shown, but is there a brake motor in the load detector (8)? A control device for control is connected.

Next, the operation of the present invention will be explained.

First, the load detector (8) outputs zero when only the force in the hypotenuse direction due to the weight of the frame (3) and each device mounted on the frame (3) is applied, that is, when no cable tension is applied. Adjust in advance so that

When laying the cable (7) on the bottom of the water, the cable (7) is completely fixed to the tip of the cable (7), and the lead wire is wound up with the winder eυ.
) is pulled out to the winding machine (al) side, and when it is pulled out at the assigned position 1, a fluid pressure cylinder (9) is created and the cable (7) is inserted and processed by the left and right caterpillar links (16a) and (16b). Remove the lead wire from the cable (7), and remove the brake device (18α) (18&
) (19a) (196) K is released and the drive device (17cL) (176Hr is activated, the caterpillar link <ua) (46b> k is driven to pull out the cable (7) and start laying it on the bottom of the water. The roller @ (to) and the vertical roller (2) are used to guide the cable (7).

When the cable (7) is pulled out to a certain extent, the cable (7) becomes a caterpillar link (1k) due to the tension due to its own weight.
(16b) It accelerates by k and tries to descend. This 4@
, the drive devices (17a) (17b) stop and the brake equipment w(18z) +186), (1%) (196
) to feed the cable (7) into the water while adjusting the speed of the caterpillar link (16Il&) (16b). If the tension of the cable (7) is small, use brake equipment fii (19a) (196), and if it is large, use brake equipment k (18a) (18b).

In this way, if the cable (7) is laid by controlling the braking force using the tension of the cable (7), the cable (7) can be laid along the bottom of the water with good coherence.

In the embodiments of the present invention, the case of laying cables has been described, but it can be used not only for cables but also for laying all kinds of tubular objects such as water pipes and oil pipes.
It goes without saying that various other changes may be made without departing from the spirit of the present invention.

Since the device for laying tubular objects on the water bottom of the present invention has the above-described configuration, it can achieve the effect t=X in that the tubular objects can be laid on the water bottom safely, reliably, and quickly.

[Brief explanation of drawings]

Fig. 1 is an explanatory drawing of the conventional example, Fig. 2 is an explanatory plan view of the present invention, Fig. 3 is a view taken in the 1ll-11 direction of Fig. 2, and Fig. 4 is a kV - IV direction of Fig. 3. Figure 5 is a detailed view of the frame attachment part. In the figure, (1k) (1,66) is a caterpillar link, (1
7α) (17b) is the drive device, (18mi) (18b)
) (19α) (196) indicates a brake device.

Claims (1)

[Claims] 1) A pair of endless chain bodies capable of holding a tubular object, a drive device for rotating the chain bodies, and a brake device for controlling rotation of the chain bodies. A device for laying tubular objects on the bottom of the water.