JPH0698950B2 - Survey equipment recovery device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for pulling a survey instrument, which has been put into the sea for surveying the seabed or the sea, into a ship.

[Conventional technology]

Research equipment under the sea is pulled by pulling a research device (called a vehicle) into the sea.

Once the survey is complete, the vehicle must be retrieved on board. Since the vehicle is connected to the crane installed on the ship by a communication cable, the vehicle can be drawn close to the ship. However, since the communication cable has a small diameter,
It cannot be raised. For this reason, the crane's hoisting hooks (hooks) are hooked on the running body, and the crane is used to hoist it.

The work of hooking the lifting equipment (hook) of the crane for lifting only to the vehicle is carried out manually.

Such a vehicle is a ship and aircraft collection, 1986 edition.
Pages 109-110, published by the JMSDF.

[Problems to be solved by the invention]

Since the work of hooking the hanger (hook) to the running body when collecting the running body is done manually, it is extremely dangerous. Also, since it is human power, it is difficult to perform in the sea where the influence of waves is small, in case of stormy weather.

Therefore, at the time of collection, the collection device suspended by the crane is lowered from above the running body and placed on the running body, and the engaging device is operated to engage the engaging portion of the running body, After that, it is possible to hoist it with a crane.

However, in this one, in order to engage the engagement device,
It is necessary to detect that the recovery device has landed on the vehicle and then operate the engagement device by this detection signal.

This requires an electric circuit in the recovery device to be put into the sea. In addition to the rope, a power cable is required between the crane and the recovery device. It is conceivable to use an air cylinder or a hydraulic cylinder as the engagement device of the recovery device to eliminate the need for a power supply, but a hose for supplying driving fluid is required between the recovery device and the crane.

Therefore, these means are expensive.

An object of the present invention is to provide an inexpensive recovery device.

[Means for solving problems]

The above-mentioned object is a guide that vertically penetrates the communication cable, an engaging member that moves horizontally in the vicinity of this guide, and a spring that urges the engaging member toward the engaging portion of the investigation device, A moving unit for moving the engaging member in a direction opposite to the moving direction of the engaging member by the spring, and a moving unit provided so as to be movable up and down and engaging with the engaging member in a lowered state. Of the inspection device is prevented from moving toward the engaging portion of the investigation device, and the stopper that disengages from the engaging member in the raised state and the detector that raises the stopper by contacting the inspection device And the engaging member, the spring,
This can be achieved by constructing a recovery device for the investigation device, which includes a frame that includes the moving unit, the stopper, the detector, and the guide, and that can be suspended from the rope of the crane.

[Action]

The recovery device is put into water with the engagement member engaged with the stopper. When the detector of the recovery device comes into contact with the surveying instrument, the detector rises to raise the stopper, so that the engagement member projects toward the engaging portion of the surveying instrument and is engaged by the force of the spring. After that, pull up the recovery device with a crane. After the recovery device is recovered on the ship, the engaging member is retracted by driving the moving means so as to apply the force in the opposite direction to the spring. As a result, the stopper and the detector descend and return to the initial state.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

A navigation vehicle 10 such as a survey instrument is put into the sea from a ship 1 via a communication cable 3 and moves in the sea as the ship travels. When collecting the flying body 10, the communication cable 3 is wound up using the crane 5 of the ship 1 and lifted up by the crane 5.
The navigation body 10 has a circular cross section, and has a connecting portion with the communication cable 3 at the upper part of the central portion in the longitudinal direction. The connecting part is a vehicle
It is a hanging tool 11 used when collecting 10. The suspending tool 11 has a cylindrical shape concentric with the cable 3, an upper end 11a is tapered, and a flange 11b protruding outward at an intermediate portion between upper and lower ends.
Have. The flange 11b serves as an engaging portion when the flying body 10 is collected.

Reference numeral 20 denotes a recovery device used when recovering the vehicle 10 and is suspended from the crane 8 of the ship 1 via a rope 9. The crane 8 works together with the crane 5.

The collecting device 20 is put into water when collecting the moving body 1, guided by the cable 3 and lowered to be placed on the moving body 10. Then, the engaging device of the collecting device 20 is attached to the hanging tool 11 of the moving body 10. Flange 11b
To the lower surface of and to be engaged. Recovery device 20
Once engaged, the cranes 5 and 8 are used to lift and
On the deck of.

The configuration of the recovery device 20 will be described. Spherical guides 23 are installed on the lower surfaces of the four corners of a quadrangular frame 21 when viewed from above. The spherical guide 23 is installed via a spring 24 so as to be vertically movable. The spherical guide 23 can rotate horizontally.

The left and right beams 21b, 21b of the frame 21 are two beams 21c, 2
Connected with 1c. The cable 3 passes between the two beams 21c and 21c.

There are two ropes 9 for hoisting the recovery device 20, and they are connected to the upper surfaces of the beams 21c, 21c via metal fittings 27, 27, respectively. The metal fittings 27, 27 are installed at the central portions in the longitudinal direction of the beams 21c, 21c.

Between the two beams 21c, 21c, the cable 3 and the hanger 11
A cylindrical guide 26 penetrating therethrough is erected. Guide 26
Is attached to the beams 21c, 21c. The upper and lower ends of the guide 26 are enlarged like a trumpet. A rectangular opening 26a through which the attachment / detachment rod 35 enters and exits is provided on the side surface of the guide 26 facing the beams 21b, 21b. The guides 26 are appropriately attached to the upper and lower surfaces of the beam 21c. 21d is a mounting seat for fixing the guide 26 and the metal fitting 27 to the beam 21c.

A stopper ring 28 concentric with the guide 26 is arranged between the guide 26 and the beams 21b, 21b so as to be vertically movable. The stopper ring 28 closes the opening 26a when it descends, and opens the opening 26a when it rises, allowing the rod 35 to enter.

Reference numeral 31 denotes a hydraulic cylinder of the engagement device 30, which is horizontally installed on each beam 21b. The rod 35 is installed at the tip of the rod of the hydraulic cylinder 31. Hydraulic cylinder 31
The compression spring 32 is built in the chamber on the side opposite to the rod so that the rod is projected. This spring side chamber is sealed and contains air. A hose (not shown) connected to a hydraulic pump (not shown) is detachably provided in the rod-side chamber of the hydraulic cylinder 31. When the hose is removed, the hose connection port 31a of this oil chamber is closed. The hose is connected only when the recovery device 20 is raised to the deck of the ship 1, and the hose is not connected when the recovery device 10 is put into water for recovering the vehicle 10. The pressure in the oil chamber is lowered when the oil is poured into the water. For this reason, the rod 35 is
It is pressed against the stopper ring 28 at 32. Normally, the tip of the rod 35 is pressed against the side surface of the stopper ring 28. The oil chamber of the hydraulic cylinder 31 contains oil.

The rod 35 connects the beam 21c with the beam 21c.
supported by e. The vertical cross section of the rod 35 in the portion entering the opening 26a is quadrangular. The lower surface of the flange 11b of the hanger 11 is placed on the upper surface of the quadrangle.

A detector for detecting whether or not the recovery device 20 is placed on the navigation body 10 is provided in the center of the beams 21a, 21a before and after the frame 21.
40 is installed so that it can move up and down. Detector 40 is beam 21
It comprises a rod 41 that moves up and down a, a spherical contactor 42 installed at the lower end of the rod 41, and an L-shaped bracket 43 that connects the stopper ring 28 and the rod 41. Therefore, the stopper ring 28 rises as the contact 42 rises.

As shown in FIG. 6, the stopper ring 28 has a half-split shape, and the end of the bracket 43 has two half-split stopper rings 28, 28.
It is narrowed by the mounting piece at the end of and is connected with bolts 45. The end of the bracket 43 is inserted into a guide 46 provided on the beam 21c.

The beams 21b, 21b of the frame 21 are parallel to the axis of the vehicle 10 and the beams 21a, 21b are oriented in a direction orthogonal to the axis of the vehicle 10. Therefore, the contactor 42 contacts the top surface of the navigation body 10, and the spherical guide 23 contacts the arcuate slope.

When the recovery device 20 is lowered toward the running body 10, the contactor 42 first comes into contact with the running body 10, and then the spherical guide 23 moves the running body.
It is provided so that it contacts 10.

The contact ring 42 comes into contact with the running body 10, whereby the stopper ring 28 rises and the rod 35 passes through the opening 26a. The position of the rod 35 in this state is the flange 11b of the lifting tool 11.
Well below the bottom surface of This makes the rod
It is possible to reliably engage the 35 with the flange 11b.

Next, the work of collecting the flying vehicle 10 will be described.

First, after lowering the oil pressure in the oil chamber of the hydraulic cylinder 31, the crane 8 is used to lower the recovery device 20. Recovery device 20
Since the cable 3 penetrates the inside of the guide 26, the recovery device 20 descends toward the running body 10.

The spacecraft 10 is stopped in the water, which is less affected by the waves. When the contactor 42 descends and contacts the spacecraft 10, the stopper ring
Since 28 moves up, the rod 35 stopped by the stopper ring 28 passes through the opening 26a by the spring 32 and projects toward the hanger 11.

When it descends further, the spherical guide 23 hits the running body 10. The shock at this time is alleviated by the spring 24.

As shown in FIG. 9, when the recovery device 20 is lowered, it is in a state of being inclined with respect to the axis of the navigation body 10 (the beam 21a is inclined at an angle of θ with respect to the axis). There are many. When the rod 35 is projected in this state, the rod 35
It happens that it is not possible to properly engage with 11b. However, since the spherical guide 23 hits the arcuate slope of the vehicle, the inclination is corrected.

Then, using the crane 8 to raise the recovery device 20,
The rods 35, 35 engage with the lower surface of the flange 11b, and the running body 10 is also lifted.

After hoisting the recovery device 20 and the navigation vehicle 10 in this way,
Drop on the deck of the ship on the deck of Ship 1. When the vehicle 10 is placed on the deck, the rod 35 descends with respect to the flange 11b. That is, the rod 35 moves away from the flange 11b.

In this state, the hydraulic pump is connected to the connection port 31a to supply pressure oil, and the rod 35 is retracted.

Next, the recovery device 20 is lifted by using the crane 8. Then, the detector 40 descends by its own weight, so the stopper ring
28 descends and closes the opening 26a.

Next, after reducing the pressure of the oil chamber of the hydraulic cylinder 31, the hose is removed.

As described above, all the operations of the engagement device can be mechanically performed. Therefore, the power cable and the hose between the recovery device 20 and the crane 8 are not required, and the cost can be reduced.

Since the oil in the oil chamber of the hydraulic cylinder 31 has a low pressure and a small amount, the pollution of the sea at the time of breakage can be made extremely small.

The numbers of the hydraulic cylinder 31 and the rod 35 are determined by the shape of the engaging portion. The hydraulic cylinder 31 may be an air cylinder.

The spring 32 may not be built in the hydraulic cylinder 31, but may be provided between the hydraulic cylinder 31 and the rod 35.

The embodiment shown in FIG. 10 will be described. This is provided with a lever 50 as a means for returning the rod 35. Lever 50 beam
It is rotatably provided on 21b, and the U-shaped engaging portion 50a at the tip is engaged with the convex portion 35c at the rear end of the rod 35. The spring 32 is arranged between the projection 35b on the tip end side of the rod 35 and the beam 21b. The rod 35 is retracted by pushing the handle of the other end 50b of the lever 50.

〔The invention's effect〕

According to the present invention, the engagement with the investigation device can be performed by mechanical force, and the power cable and the hose of the pressure source are unnecessary,
It can be made cheap.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of one embodiment of the present invention, FIG. 2 is a plan view of a recovery device of one embodiment of the present invention, and FIG.
-3 view, FIG. 4 is a 4-4-4 sectional view of FIG. 2, FIG. 5 is a 5-5 sectional view of FIG. 2, and FIG. 6 is a 6-6 sectional view of FIG. FIG. 7 is a view corresponding to FIG. 4 in a state where the attachment / detachment device grasps a running body, FIG. 8 is a view corresponding to FIG. 5 in a state where the attachment / detachment device grasps a running body, and FIG. FIG. 10 is a plan view for explaining the positional relationship between the vehicle and the navigation vehicle, and FIG. 10 is a longitudinal sectional view of a main part of another embodiment of the present invention. 1 ... Ship, 3 ... Communication cable, 5,8 ... Crane, 9
…… Rope, 10 …… Vessel (survey equipment), 11b …… Flange, 20 …… Recovery device, 21 …… Frame, 26 …… Guide, 26a …… Opening, 28 …… Stopper ring, 30 …… Engagement device, 31 …… hydraulic cylinder, 31a …… Hose connection port, 32
...... Spring, 35 …… Rod, 40 …… Detector

Claims (1)

[Claims] 1. A guide for vertically penetrating a communication cable, an engaging member that moves horizontally in the vicinity of the guide, and a spring that urges the engaging member toward an engaging portion of a survey instrument. A moving means for moving the engaging member in a direction opposite to the moving direction of the engaging member by the spring, and a moving means provided vertically movably, and engaging with the engaging member in the lowered state A member that prevents the member from moving toward the engaging portion of the surveying device, and a stopper that disengages from the engaging member in a raised state, and a detection that raises the stopper by contacting the surveying device A child, the engaging member, the spring,
A recovery device for an investigation device, comprising: a frame that includes the moving means, the stopper, the detector, and the guide, and is provided so as to be hung on a rope of a crane.