CN113335456A

CN113335456A - Modular boat collecting and releasing device

Info

Publication number: CN113335456A
Application number: CN202110782700.0A
Authority: CN
Inventors: 韩强; 张孝奕; 胡士博; 贾旺杰; 刘中胜; 胡罗村; 丁标; 贾达宇
Original assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Current assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-09-03

Abstract

The invention provides a modularized boat take-up and pay-off device, which sequentially consists of a top recovery mechanism, a middle auxiliary positioning mechanism and a lower supporting base from top to bottom, wherein a winch for taking up and paying off the lower supporting base is installed on the top recovery mechanism, and is provided with a plurality of steel wire ropes which penetrate through the middle auxiliary positioning mechanism and are connected with the lower supporting base; the middle auxiliary positioning mechanism is provided with a floating body frame, the side wall of the floating body frame is provided with a plurality of wave passing holes, a plurality of buffer guide rollers are arranged along the inner wall of the floating body frame, and the floating body frame is provided with a plurality of longitudinal through holes for the steel wire rope to pass through; at least two pairs of self-adaptive supporting bases are arranged on the lower supporting base, and a plurality of vertical positioning supporting columns are arranged on the side edges of the lower supporting base. The invention has low requirement on ships, is suitable for various ships, has small deck occupation area, does not need fixed installation, is flexible and convenient to store, has strong sea condition adaptability, and can stably and safely take and release the boat under the condition of high wind and waves.

Description

Modular boat collecting and releasing device

Technical Field

The invention relates to ship supporting facilities, in particular to a modularized boat folding and unfolding device.

Background

The existing boat collecting and releasing technology mainly depends on a special boat frame to carry out the marine collecting and releasing operation of a boat, the special lifting boat frame is usually arranged on a board side, the boat is poured out to release and recover the boat, the boat is released and recovered at every time, a crewman is required to realize unhooking and hooking operation on the sea, the operation efficiency is low, the weather operation of large stormy waves is difficult, and even the marine collecting and releasing operation of the boat can not be carried out.

In order to improve the folding and unfolding efficiency of the small boat, a slideway type small boat folding and unfolding scheme is provided, namely, the slideway is arranged at the tail part of the boat, the small boat is directly driven to the slideway, and the driving rollers can drive the small boat to go on the boat as long as the small boat enters the slideway, so that the folding and unfolding operation of the small boat is completed. However, the scheme has high cost, a large opening needs to be formed in the tail of the ship, space is reserved for installation and arrangement of the slide way, only other methods can be used for ships which cannot be opened at the tail, certain selectivity is provided for the ship type, the ship type applicability is poor, and the cost is high. Under the operation condition of heavy waves, the small boat driving into the slideway is also confronted with great difficulty and has higher risk.

Disclosure of Invention

This patent receives the inspiration of underwater tension leg platform, and the device adopts "anchoring principle under water". The main idea of the whole structure design is that the whole device sequentially comprises a top recovery mechanism, a middle auxiliary positioning mechanism and a lower supporting base from top to bottom, the device is in a semi-flexible and semi-rigid state under the working condition, the lower supporting base is sunk below the wave trough of the sea surface in the process of collecting and releasing the sea surface, and the steel wire ropes tightened under the action of gravity form four fixed boundaries. The state at this time is that the entire apparatus is divided into an upper part, a middle part and a lower part, the relatively stable lower part supporting the base provides sufficient stability to the entire system due to gravity and water resistance, and the upper part and the middle part are major sources of instability factors of the entire system. Because the top recovery mechanism is connected with the lower support base through the flexible steel wire rope, unstable upper dynamic conduction is blocked; the middle auxiliary positioning mechanism is made of floatable materials, and waves and ocean currents are main factors influencing system stability.

Firstly, wave fluctuation motion can drive the middle part auxiliary positioning mechanism to float up and down, but because the degree of freedom of the middle part floating body structure along the vertical direction of the steel wire rope is not limited, the influence of waves on the whole system can be considered to be very little, ocean current should be said to have an influence on the middle part auxiliary positioning mechanism and the support base of the lower part, the middle part auxiliary positioning mechanism is provided with wave passing holes, and the lower part support base adopts a frame structure, so that the influence of the current is greatly reduced. Therefore, a stable system established by taking the lower base as a core depends on a fixed boundary formed by a tightened steel wire rope, the translation (surging, swaying) and large-angle rotation (rolling, pitching and yawing) of the middle auxiliary positioning mechanism on the horizontal plane can be greatly limited, and the boat can be more easily folded and unfolded under the condition of high wind waves under the condition that the middle recovery mechanism is relatively stable.

The invention has the advantages that:

1) the boat can be stored and released by a common marine crane or equipment in the marine crane without a special boat bracket.

2) The ship has low requirement on ships, is suitable for various ships, has small occupied area of a deck, does not need fixed installation, and is flexible and convenient to store.

3) The sea condition adaptability is strong, and the boat can be stably, safely and reliably folded and unfolded under the condition of heavy wind and waves.

4) The adaptability to the boat is strong, various small boats can be recovered/distributed, and the problem of collecting and releasing unmanned boats can be solved.

5) Low production cost and easy popularization.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic view of a modular boat of the present invention in a stowed condition;

FIG. 2 is a schematic view of the present invention in an operational state;

FIG. 3 is a perspective view of the top retrieval mechanism;

FIG. 4 is a perspective view of a middle auxiliary positioning mechanism;

fig. 5 is a perspective view of the lower support base.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

Referring to fig. 1-2, the invention provides a modular boat retraction device, which is composed of a top recovery mechanism 100, a middle auxiliary positioning mechanism 200 and a lower support base 300 from top to bottom in sequence, wherein a boat supported on the lower support base 300 is enclosed in the middle auxiliary positioning mechanism 200.

The structure of the top recovery mechanism 100, the middle auxiliary positioning mechanism 200 and the lower support base 300 will be further described with reference to fig. 3 to 5:

the top recovery mechanism 100 is provided with a winch 103 for retracting and releasing the lower support base 300, the winch 103 is provided with a plurality of steel wire ropes 102 which penetrate through the middle auxiliary positioning mechanism 200 and are connected with the lower support base 300, and the top recovery mechanism 100 is provided with a lifting eye plate for connecting steel wire ropes of a deck crane. The middle auxiliary positioning mechanism 200 is provided with a floating body frame 201, the side wall of the floating body frame 201 is provided with a plurality of wave passing holes 202, the inner wall of the floating body frame 201 is provided with a plurality of buffer guide rollers 203, and the floating body frame 201 is provided with a plurality of longitudinal through holes 205 for the steel wire rope 102 to pass through. At least two pairs of self-adaptive supporting bases 305 for supporting the boat are arranged on the lower supporting base 300, a plurality of vertical positioning supporting columns 302 are arranged on the side edges of the lower supporting base 300, and the top ends of the positioning supporting columns 302 abut against the top recovery mechanism 100 after the steel wire ropes 102 are tightened in place.

Fig. 1 is a schematic view of the device in a storage state, three parts can be taken as a whole to be stored together with a boat, and the whole structure does not occupy excessive deck space. When a small boat needs to be put on the sea, the whole device is lifted off a deck by using a crane and placed in seawater, then the winch 103 is controlled to stably put the lower supporting base 300 down, the top recovery mechanism 100 is positioned above the sea surface, the middle auxiliary positioning mechanism 200 floats on the sea surface, and the lower supporting base 300 is submerged below the water surface. The invention can effectively improve the sea condition operation conditions of the boat retraction operation such as rescue boats, working boats, unmanned boats and the like, safely and reliably complete the boat retraction operation under severe weather conditions, and obviously improve the operation sea condition; the offshore boat recovery operation does not need hook operation, the recovery operation risk is small, and the efficiency is high; the device is flexible to store, does not need a special boat receiving and releasing frame and a fixed receiving and releasing space, and can conveniently complete the marine boat receiving and releasing operation by using the existing hoisting equipment on the boat; the manufacturing cost is obviously reduced, and the manufacturing and production are easy.

In an alternative embodiment, a plurality of first proximity switches 105 corresponding to the positions of the positioning support columns 302 are arranged on the upper frame 101 of the top recovery mechanism 100, and the first proximity switches 105 are connected with the winch 103. The top end of the positioning support column 302 of the lower support base 300 is provided with a positioning pin 303, the upper frame 101 is provided with a plurality of mechanical locking devices or electronic locking devices corresponding to the positioning support column 302, and the electronic locking devices are connected with the first proximity switch 105.

When the first proximity switch 105 senses that the positioning support column 302 is raised to a specified position, indicating that the lower support base 300 has been raised to the desired position, a signal is sent to the winch 103 to stop the take-up of the wireline 102. In addition, the first proximity switch 105 can also send a locking signal to the electronic locking device, which is closed to lock the positioning support column 302 in place, better ensuring a stable connection between the top recycling mechanism 100 and the lower support base 300. The positioning pin 303 is used for positioning, so that the lower support base 300 and the top recovery mechanism 100 can be properly returned during recovery.

When the upper frame 101 is provided with the mechanical locking device, the mechanical locking device can be manually unlocked before the lower supporting base 300 is placed downwards, at the moment, the lower supporting base 300 can still be firmly fixed below the top recovery mechanism 100 because the steel wire rope is not placed downwards, and when the steel wire rope is tightened to lift the lower supporting base 300 below the water surface, the positioning pin 303 abuts against the mechanical locking device to enable the lower supporting base 300 to return to the water surface, so that automatic locking is realized. In the prior art, there are many structural schemes capable of implementing the mechanical locking device of the present invention, which are not described herein again.

In an alternative embodiment, pulleys 104 are provided at four corners of the top recovery mechanism 100, and the winch 103 is provided with 4 wire ropes 102 passing through the pulleys 104 and connected to four corners of the lower support base 300. The front end of the upper frame 101 is provided with 1 bulleye plate 106 which can be connected with a bulleye so as to control the lifting posture of the whole device in the lifting process and prevent excessive swinging and rotation.

In an alternative embodiment, the lower frame 301 is provided with two front and rear supporting base cross frames 306 distributed along the width of the boat, and a pair of left and right symmetrical adaptive supporting bases 305 are respectively arranged on the supporting base cross frames 306. Each self-adaptive support base 305 comprises a rotating frame 305-1, the rotating frame 305-1 is rotatably connected to a support base transverse frame 306 and swings in the left-right direction, the upper surface of one side, close to the rotating frame 305-1, of each pair of self-adaptive support bases 305 is provided with a roller 305-2, and the upper surface of the other side is provided with a rubber mat 305-3. As shown in fig. 5, the lower frame 301 is provided with two pairs of front and rear adaptive support bases 305, and the rotating frame 305-1 of the adaptive support bases 305 can rotate freely to adapt to different bottom line types of the boat, so as to provide safer and more reliable support for the boat.

In an alternative embodiment, a support step 304 is provided on a side of each positioning support column 302 adjacent to the middle auxiliary positioning mechanism 200 for supporting the middle auxiliary positioning mechanism 200.

The whole lower support base 300 is manufactured by steel processing for the ship body, can sink below the water surface besides providing sufficient rigid support for the boat and the retraction device, provides anchoring force for the whole retraction device by means of gravity and water resistance, and achieves the effect of stabilizing the whole retraction device. In addition, the lower support base 300 is submerged, thereby avoiding the possibility of collision with the boat during the recovery process.

In an alternative embodiment, as shown in fig. 4, the floating body frame 201 is made of a lightweight glass fiber reinforced plastic material, which is a common material of the boat body, and has the characteristics of light weight and high strength, and is very suitable for being used as a frame material of the internal auxiliary positioning mechanism 200 of the present invention. The contour line type of the floating body frame 201 is matched with the external line type of the small boat, a plurality of buffer guide rollers 203 are arranged in the floating body frame, the buffer guide rollers 203 are vertical guide rollers, once the small boat enters the floating body, the small boat runs forwards under the driving of the power of the small boat to realize automatic positioning and locking, and preferably, the front end of the floating body frame 201 is provided with a bow locking device 208 which can lock and fix the head of the entering small boat. Because the front end of the floating body frame 201 is narrow, in order to ensure that the steel wire rope 102 vertically passes through the floating body frame 201 downwards, horizontal wing plates 206 are arranged on two sides of the front end of the floating body frame 201 for the steel wire rope 102 to pass through.

With continued reference to fig. 4, at least one side of the tail of the buoyant hull frame 201 is hinged with a guiding door 204 (two guiding doors 204 are shown in fig. 4, one on each of the left and right sides), and the tail guiding door 204 can be opened backwards to form a bell mouth for the boat to enter the buoyant hull frame 201. Preferably, a second proximity switch (not shown) is arranged on the front side of the floating body frame, a rotary driver for driving the guide door to rotate is arranged at the tail part of the floating body frame 201, the rotary driver is connected with the second proximity switch, once the small boat enters the floating body frame 201, the second proximity switch sends an electric signal to the rotary driver, the guide door 204 at the tail part is closed by the rotary driver, and the whole launching and retracting device can realize unmanned intervention automatic boat launching and retracting. The rotation driver can be a driving mechanism such as a motor or a hydraulic cylinder.

In conclusion, compared with the comparison file, the method has the following positive effects:

1) the existing boat collecting and releasing device generally operates under a four-stage sea condition, so that the requirement of offshore operation can not be met, and particularly the boat collecting and releasing operation under a larger storm condition in the rescue field is difficult to realize. The invention makes boat collecting and releasing operation possible under the condition of heavy stormy waves, and particularly has more obvious advantages under the condition of heavy stormy waves.

2) At present, the boat receiving and releasing mode needs to be provided with a special boat frame or a special slide way, needs to be fixed to occupy the space of a ship, and is not flexible to store and store. The invention can more flexibly utilize the space of the ship, has unfixed storage position and can be adjusted according to the requirement.

3) The existing boat retraction device is high in manufacturing and production cost. The invention has low cost and is easy to popularize and implement.

4) The existing boat retraction device needs to be arranged and installed in consideration of the ship construction stage. The invention can be purchased and used on board at the later stage without special boat booms and hoisting equipment, and is more flexible and convenient to apply.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims

1. A modularized boat take-up and pay-off device is characterized in that the modularized boat take-up and pay-off device sequentially consists of a top recovery mechanism (100), a middle auxiliary positioning mechanism (200) and a lower supporting base (300) from top to bottom;

a winch (103) for retracting and releasing the lower supporting base (300) is installed on the top recovery mechanism (100), a plurality of steel wire ropes (102) penetrating through the middle auxiliary positioning mechanism (200) and connected with the lower supporting base (300) are arranged on the winch (103), and a lifting eye plate is arranged on the top recovery mechanism (100);

the middle auxiliary positioning mechanism (200) is provided with a floating body frame (201), the side wall of the floating body frame (201) is provided with a plurality of wave passing holes (202), a plurality of buffer guide rollers (203) are arranged along the inner wall of the floating body frame (201), and a plurality of longitudinal through holes (205) for the steel wire rope (102) to pass through are arranged on the floating body frame (201);

at least two pairs of self-adaptive supporting bases (305) for supporting the boat are arranged on the lower supporting base (300), a plurality of vertical positioning supporting columns (302) are arranged on the side edge of the lower supporting base (300), and the top ends of the positioning supporting columns (302) abut against the top recovery mechanism (100) after the steel wire ropes (102) are tightened in place.

2. A modular boat stowing and releasing device according to claim 1, characterized in that pulleys (104) are provided at each of the four corners of the top recovery mechanism (100), and the winch (103) is provided with 4 wire ropes (102) which are connected to the four corners of the lower support base (300) via the pulleys (104).

3. The modular boat stowing and releasing device according to claim 1, characterized in that the upper frame (101) of the top recovery mechanism (100) is provided with a plurality of first proximity switches (105) corresponding to the positions of the positioning support columns (302), and the first proximity switches (105) are connected to the winches (103).

4. A modular boat stowing and releasing device according to claim 3, characterized in that the top of the positioning support column (302) is provided with a positioning pin (303), and the frame of the top recovery mechanism (100) is provided with a plurality of mechanical locking devices or electronic locking devices corresponding to the position of the positioning support column (302), and the electronic locking devices are connected with the first proximity switch.

5. A modular boat stowing and releasing device according to claim 1, characterized in that the lower frame (301) of the lower support base (300) is provided with two front and rear support base crossbearers (306) distributed along the width of the boat, each support base crossbearer (306) being provided with a pair of bilaterally symmetrical adaptive support bases (305);

each self-adaptive support base (305) comprises a rotating frame (305-1), the rotating frame (305-1) is rotatably connected to a support base transverse frame (306) and swings in the left-right direction, the upper surface of one side, close to each other, of the rotating frame (305-1) of each pair of self-adaptive support bases (305) is provided with a roller (305-2), and the upper surface of the other side is provided with a rubber mat (305-3).

6. A modular boat stowing and releasing device according to claim 1, characterised in that the side of each positioning support post (302) adjacent to the middle auxiliary positioning means (200) is provided with a support step (304) for supporting the middle auxiliary positioning means (200).

7. The modular boat stowing device of claim 1, characterized in that the material of the buoyant frame (201) is glass fiber reinforced plastic, and the shape of the buoyant frame (201) is the same as the outer contour of the boat,

a bow locking device (208) is arranged at the front end of the floating body frame (201), and horizontal wing plates (206) for the steel wire rope (102) to pass through are arranged on two sides of the front end of the floating body frame (201).

8. A modular boat stowing and releasing device according to claim 1, characterized in that a guiding door (204) is hinged to at least one side of the tail of the buoyant body frame (201), and the guiding door (204) is opened backwards in the horizontal direction to let the boat enter the buoyant body frame (201).

9. The modular boat stowing and releasing device according to claim 8, characterized in that a second proximity switch is provided at the front side of the buoyant frame (201), and a rotation driver for driving the pilot door to rotate is provided at the rear of the buoyant frame (201), and the rotation driver is connected to the second proximity switch.