CN108189975A - A kind of scientific surveying ship with lifting fin system - Google Patents

Abstract

The invention discloses a scientific investigation ship with a lifting fin system, which includes a hull, a vertical shaft extending vertically along the bottom of the ship into the cabin in the hull, and a lifting fin for carrying detection instruments is arranged in the vertical shaft. The two ends of the fins are respectively provided with guide rail mechanisms for assisting the sliding and lifting of the lifting fins. The guide rails are laid vertically on the well wall along the opening direction of the shaft. The driving mechanism for detection or lifting and retracting also includes a buffer mechanism for reducing the impact force at the joint between the driving mechanism and the lifting fin when the driving mechanism drives the lifting fin to drop to a predetermined position in the water for detection. The buffer mechanism not only connects the oil cylinder with the lifting fin more conveniently, but also effectively alleviates the continuous impact on the oil cylinder and the lifting fin caused by the water flow resistance on the lifting fin when the ship is sailing .

Description

A scientific research vessel with a lifting fin system

technical field

The invention relates to the technical field of scientific research ships, in particular to a scientific research ship with a lifting fin system.

Background technique

As a mobile laboratory at sea, scientific research ships are key facilities for ocean exploration. At present, some of the marine detection instruments on the marine scientific investigation ship are directly installed on the outer plate of the bottom of the hull, and some are installed on the bottom of the hull or the bottom of the traditional "shaft-rudder" fin instrument cabin. the following requirements;

(1) Measurements can be carried out under a wide range of sea conditions (that is, sea climate conditions) and high ship speeds, so as to shorten the period of measurement tasks and improve the utilization rate of ships and equipment;

(2) The measuring instrument extends as far as possible from the bottom of the ship to avoid the influence of the noise generated by the hull and underwater air bubbles on the measurement accuracy;

(3) The position of the measuring instrument and the position of the signal emission coordinates remain relatively fixed to ensure the accuracy of each measurement data;

(4) Try to consider the efficiency and convenience of maintenance, repair and replacement of the instrument and its carrier, as well as the cost of construction and maintenance.

The defect of the former is that the detection equipment cannot avoid the turbulent layer of the bottom plate, which greatly reduces the detection accuracy, and also affects the service life of the instrument due to the cavitation effect of the turbulent layer; the biggest disadvantage of the latter structure is that it is not convenient for fins and internal The maintenance, maintenance and replacement of the instrument must be docked for repairs once a fault occurs. In addition, because the fins protrude out of the hull for a long time, due to navigation resistance, the fins will be under stress for a long time. A special underwater locking device is set to ensure the safety and stability of the instrument cabin, and the actual draft of the scientific research ship will be relatively increased (the height of the fins protruding from the hull), so its navigation area is limited, and the use of fins is limited. Life expectancy is greatly shortened. The high-tech nature of marine exploration activities determines to a certain extent that the finned instrument cabin should be safe, reliable, and vibration- and noise-reducing. However, the above-mentioned lifting fin device cannot solve the influence of the water flow resistance on the lifting fin when the hull is sailing, and it will cause the lifting fin to vibrate, which will directly cause a large impact on the connection between the lifting fin and the hull. Continuous impact over time can cause damage to the connection.

Contents of the invention

In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a device that can move up and down the fin instrument cabin in the deep well inside the hull through its lifting mechanism, effectively avoiding the impact of the bubble layer on the bottom of the ship on the detection environment. , and alleviate the impact of the lifting fins caused by water flow resistance, a scientific research vessel with a lifting fin system.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a scientific investigation ship with a lifting fin system, including a hull, in the hull, a shaft extending vertically along the bottom of the ship into the cabin, and a shaft is arranged in the shaft There are lifting fins that are used to carry testing instruments and extend down into the water along the vertical shaft to reach a predetermined position during detection. The two ends of the lifting fins are respectively provided with guide rail mechanisms for assisting the sliding and lifting of the lifting fins. The opening direction of the shaft is laid vertically on the well wall, and the guide rail mechanism is provided with a lock pin for locking the lifting fin when the lifting fin is lowered to a predetermined position in the water, and is provided on the shaft wall for driving The driving mechanism for the lifting fin to be lowered for detection or raised and retracted also includes a buffer mechanism for reducing the impact force at the joint between the driving mechanism and the lifting fin when the driving mechanism drives the lifting fin to drop to a predetermined position in the water for detection .

In the above-mentioned scientific investigation ship with a lifting fin system, the buffer mechanism includes a seat body with an inner cavity arranged on the lifting fin plate, and a seat connected to the seat body is arranged in the inner cavity to divide the inner cavity into bottom parts. The oil damping chamber and the partition plate of the elastic buffer chamber at the top, the elastic buffer chamber is provided with a connection seat plate connected with the driving mechanism, and a plurality of springs connected with the inner wall of the elastic buffer chamber are evenly distributed around the circumference of the connection seat plate At the bottom of the connecting seat plate, there is a rod body that extends downward through the partition plate into the oil damping chamber filled with high-viscosity oil. The adjustment hole through which the rod body passes is used to adapt to the vibration displacement of the lifting fin, and an elastic rubber bag used to seal the adjustment hole is connected between the partition plate and the rod body.

In the above-mentioned scientific research vessel with the lifting fin system, the diameter of the adjustment hole is larger than the outer diameter of the rod body.

In the above-mentioned scientific investigation ship with a lifting fin system, the upper end of the elastic rubber bag is fixed on the outside of the rod body, the lower end is fixed on the upper surface of the partition, and the upper surface of the partition is provided around the adjustment hole to connect with the elastic rubber bag. Rubber layer for enhanced sealing performance.

In the above-mentioned scientific investigation ship with a lifting fin system, the connecting seat plate includes a connecting plate, and two ear plates connected with the driving mechanism are arranged symmetrically on the upper surface of the connecting plate, and the two ear plates are provided for connecting the rotating pins. One end of the spring is connected to the inner cavity wall of the seat body, the other end is connected to the connection plate, and the rod body extends downward along the center of the connection plate.

In the above-mentioned scientific investigation ship with a lifting fin system, the drive mechanism includes a two-stage oil cylinder vertically fixed on the inner wall of the shaft, and a retractable piston rod is arranged downward in the two-stage oil cylinder, and the bottom end of the piston rod There is a joint which is rotatably connected with the two ear plates, and the joint is connected with the two ear plates through a rotating pin installed in the connection hole.

In the above-mentioned scientific investigation ship with a lifting fin system, the guide rail mechanism includes a main rail vertically arranged on the front of the lifting fin and auxiliary guide rails on both sides of the rear of the lifting fin, and locking pins are respectively arranged on the main rail and the two side rails. On the auxiliary guide rail, a triangular lifting area is formed between the main guide rail and the two auxiliary guide rails, and the lifting fins are located in the lifting area formed by the main and auxiliary guide rails.

The above-mentioned scientific investigation ship with a lifting fin system, the lifting fins include a ship-shaped cylinder composed of steel plates with a two-layer structure, the front part of the boat-shaped cylinder is provided with a turning part that slides and cooperates with the main rail, and the boat-shaped cylinder The two sides of the rear part of the tank are respectively provided with right-angle parts that are slidingly matched with the two pairs of guide rails, and an instrument cabin for installing a testing frame is provided on the ship-shaped cylinder. The bottom surface of the cylinder.

In the above-mentioned scientific investigation ship with lifting fin system, a lifting device for checking and repairing the lifting fin is installed on the top of the shaft. The lifting device includes a hydraulic winch, a movable pulley and a steel wire rope, and the steel wire rope is wound on the hydraulic winch and stretched out. Pass through the movable pulley and fix it on the top of the shaft.

In the above-mentioned scientific survey ship with a lifting fin system, the two-stage oil cylinder is fixed on the inner wall of the shaft by a plurality of vertically arranged fixing clips.

The advantages of the scientific investigation vessel with the lifting fin system of the present invention are: it is used for launching marine scientific investigation and detection instruments, effectively avoiding the drawbacks that the fin instrument cabin is outside the hull for a long time, and the driving mechanism not only effectively protects the fin instrument cabin and the internal installation It can reasonably avoid the influence of the air bubble layer on the bottom of the ship to provide a good detection environment for the detector, and the structure is simple, which is convenient for the maintenance, maintenance and replacement of the fins and internal instruments. Moreover, the setting of the buffer mechanism not only makes it more convenient to connect the oil cylinder with the lifting fin, but also effectively alleviates the impact on the oil cylinder and the lifting fin caused by the water flow resistance on the lifting fin when the ship is sailing when it is lowered into the water for detection. The continuous impact force prolongs the service life of the oil cylinder and lifting fins.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Figure 2 is an enlarged view of the connection between the lifting fin and the guide rail mechanism;

Fig. 3 is the structural enlargement diagram of buffer mechanism;

Fig. 4 is the top structural view of buffer mechanism;

Fig. 5 is a structural diagram of the position where the oil cylinder is connected to the lifting fin;

Fig. 6 is a diagram of the use state of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail;

As shown in Figures 1, 2, 3, 4, 5, and 6, a scientific research ship with a lifting fin system includes a hull 38, and in the hull 38, a shaft vertically extends from the bottom 1 to the cabin 2 3. The top of the shaft 3 is equipped with a hoisting device 5 for checking and repairing the lifting fins 4. The hoisting device 5 includes a hydraulic winch 6, a movable pulley 7 and a steel wire rope 8, and the steel wire rope 8 is wound on the hydraulic winch 6 and stretched out. The overrunning pulley 7 is fixed on the top of the shaft 3.

The vertical shaft 3 is provided with a lifting fin 4 that is used to carry the detection instrument and extends downward into the water along the vertical shaft 3 and passes through the air bubble layer 9 to reach a predetermined position during detection. The air bubble layer 9 is generated at the bottom of the ship during navigation, generally The ship bottom 1 is 2.5-2.9 meters downward, and the underwater detection needs to avoid the influence of the air bubble layer 9 . Both ends of the lifting fin 4 are respectively provided with a guide rail mechanism for assisting the sliding and lifting of the lifting fin 4. The guide rail mechanism is vertically laid on the well wall along the opening direction of the shaft 3. When the fin plate 4 descends to a predetermined position in the water, it is used to lock the lock pin 10 of the lift fin plate 4 . The auxiliary guide rail 12 on the side, the lock pin 10 is arranged on the main guide rail 11 and the two auxiliary guide rails 12 respectively, a triangular lifting area is formed between the main guide rail 11 and the two auxiliary guide rails 12, and the lifting fins 4 are located on the main guide rail 11 and the two auxiliary guide rails 12. In the lifting area that two auxiliary guide rails 12 form. The lifting fin 4 includes a boat-shaped cylinder 13 with a two-layer structure composed of steel plates. The front part of the boat-shaped cylinder 13 is provided with a turning part 14 that slides and fits with the main rail 11, and the two sides of the rear of the boat-shaped cylinder 13 are respectively A right-angle portion 15 that is slidingly fitted with the two pair of guide rails 12 is provided, and an instrument cabin 16 for installing a testing frame is provided on the boat-shaped cylinder 13. The testing frame 17 carrying testing instruments is fixed in the instrument cabin 16 and extends downward from the ship. The bottom surface of the cylinder body 13.

On the well wall of the vertical shaft 3, a driving mechanism for driving the lifting fins 4 to descend for detection or to rise and recover is provided. The driving mechanism includes a two-stage oil cylinder 18 vertically fixed on the inner wall of the vertical shaft 3, and the two-stage oil cylinder 18 moves downwards. A retractable piston rod 19 is provided, and the bottom end of the piston rod 19 is provided with a joint 32 that is rotatably connected with the lifting fin 4,

It also includes a buffer mechanism 20 for reducing the impact force at the joint between the driving mechanism and the lifting fin 4 when the driving mechanism drives the lifting fin 4 down to a predetermined position in the water for detection. The buffer mechanism 20 includes a seat body 21 with an inner cavity arranged on the lifting fin 4, and an oil damping cavity 22 connected to the seat body 21 is arranged in the inner cavity to divide the inner cavity into a bottom and a top. The partition plate 24 of the elastic buffer cavity 23, the elastic buffer cavity 23 is provided with a connection seat plate 25 connected with the driving mechanism, and a plurality of springs 26 connected to the inner wall of the elastic buffer cavity 23 are evenly distributed around the circumference of the connection seat plate 25 , the bottom of the connecting seat plate 25 is provided with a rod body 27 extending downward through the partition plate 24 into the oil damping chamber 22 filled with high-viscosity oil. Two lugs 29 connected to the drive mechanism are arranged symmetrically on the upper surface of the upper surface, and two lugs 29 are provided with connecting holes 31 for connecting the rotating pin 30. One end of the spring 26 is connected to the inner cavity wall of the seat body 21, and the other end Connected to the connection plate 28 , the rod body 27 extends downward along the center of the connection plate 28 . The joint 32 is connected with the two ear plates 29 through the rotating pin 30 installed in the connecting hole 31 . The two-stage oil cylinder 18 is fixed on the inner wall of the shaft 3 through a plurality of vertically arranged fixing clips 33 .

The rod body 27 is provided with a plurality of blades 34 cross-connected with each other, and the partition plate 24 is provided with an adjustment hole 35 that allows the rod body 27 to pass through and is used to adapt to the vibration displacement of the lifting fin 4. The adjustment hole 35 The hole diameter is larger than the outer diameter of the rod body 27 . An elastic rubber bag 36 for sealing the adjustment hole 35 is connected between the partition plate 24 and the rod body 27 . The upper end of the elastic rubber bag 36 is fixed on the outside of the rod body 27, the lower end is fixed on the upper surface of the partition plate 24, and the elastic rubber bag 36 is connected to the upper surface of the partition plate 24 around the adjustment hole 35 to enhance the sealing performance. The rubber layer 37.

The working mechanism of the present invention is: (1) when ocean detection is required, the system lowers the elevating fins 4 together with the internal instruments below the hull baseline, avoiding the bubble layer 9 at the bottom of the ship 1, thereby increasing the detection accuracy; (2) cruising When it is in the state, it is lifted to a position that is flush with the bottom plate of the ship or rises, effectively reducing the navigation resistance increased by the lifting fin 4, and effectively protecting the lifting fin 4; (3) when the lifting fin 4 needs to be maintained, then Lift it to the inside of the hull and above the waterline, thereby reducing the number of dockings and reducing the cost of use.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention shall all belong to protection scope of the present invention.

Claims (10)

1. A scientific survey vessel with a lifting fin system, comprising a hull, characterized in that: in the hull, a vertical shaft extending vertically along the bottom of the ship to the cabin is provided in the shaft for carrying detection instruments when detecting The lifting fin extends down into the water along the shaft to reach the predetermined position. The two ends of the lifting fin are respectively provided with a guide rail mechanism for assisting the sliding and lifting of the lifting fin. The guide rail mechanism is provided with a lock pin for locking the lifting fin when the lifting fin is lowered to a predetermined position in the water. The drive mechanism also includes a buffer mechanism for reducing the impact force at the joint between the drive mechanism and the lift fin when the drive mechanism drives the lift fin to drop to a predetermined position in the water for detection. 2. The scientific investigation ship with lifting fin system according to claim 1, characterized in that: the buffer mechanism includes a seat body with an inner cavity arranged on the lifting fin plate, and a seat body is arranged in the inner cavity Body connected to divide the inner cavity into the oil damping cavity at the bottom and the elastic buffer cavity at the top. The elastic buffer cavity is provided with a connecting seat plate connected with the driving mechanism, which is evenly distributed around the circumference of the connecting seat plate. There are multiple springs connected to the inner wall of the elastic buffer chamber, and a rod body extending downward through the partition plate into the oil damping chamber filled with high-viscosity oil is arranged at the bottom of the connecting seat plate. For the connected blades, an adjustment hole is provided on the partition plate to allow the rod body to pass through to adapt to the vibration displacement of the lifting fin, and an elastic rubber bladder is connected between the partition plate and the rod body to seal the adjustment hole. 3. The scientific research vessel with a lifting fin system according to claim 2, characterized in that: the diameter of the adjustment hole is larger than the outer diameter of the rod body. 4. The scientific investigation ship with lifting fin system according to claim 3, characterized in that: the upper end of the elastic rubber bag is fixed on the outside of the rod body, the lower end is fixed on the upper surface of the partition, and around the adjustment hole The upper surface of the plate is provided with a rubber layer connected with the elastic rubber bag for enhancing the sealing performance. 5. The scientific investigation vessel with lifting fin system according to claim 2, characterized in that: the connecting seat plate includes a connecting plate, and two ear plates connected with the driving mechanism are arranged symmetrically on the upper surface of the connecting plate , the two ear plates are provided with connecting holes for connecting the rotating pins, one end of the spring is connected to the inner cavity wall of the seat body, the other end is connected to the connecting plate, and the rod body extends downwards along the center of the connecting plate. 6. The scientific investigation ship with lifting fin system according to claim 5, characterized in that: said driving mechanism includes a two-stage oil cylinder vertically fixed on the inner wall of the shaft, and a retractable cylinder is arranged downward in the two-stage oil cylinder. The piston rod, the bottom end of the piston rod is provided with a joint that is rotatably connected with the two ear plates, and the joint is connected with the two ear plates through a rotating pin installed in the connecting hole. 7. The scientific investigation ship with lifting fin system according to claim 1, characterized in that: said rail mechanism includes a main rail vertically arranged on the front of the lifting fin and auxiliary rails on both sides of the rear of the lifting fin. The guide rail and the lock pin are respectively arranged on the main guide rail and the two auxiliary guide rails. A triangular lifting area is formed between the main guide rail and the two auxiliary guide rails. The lifting fins are located in the lifting area formed by the main and auxiliary guide rails. 8. The scientific investigation ship with lifting fin system according to claim 7, characterized in that: said lifting fin comprises a ship-shaped cylinder with a two-layer structure composed of steel plates, and the front part of the boat-shaped cylinder is arranged with The rotating part of the main rail slidingly fits, and the two sides of the rear part of the ship-shaped cylinder are respectively provided with right-angle parts that are slidingly fitted with the two secondary guide rails. An instrument cabin for installing a detection frame is opened on the boat-shaped cylinder. The frame is fixed in the instrument cabin and protrudes downwards from the bottom surface of the ship-shaped cylinder. 9. The scientific investigation ship with lifting fin system according to claim 1, characterized in that: the top of the shaft is equipped with a lifting device for checking and repairing the lifting fin, and the lifting device includes a hydraulic winch, a movable pulley and a wire rope, Its steel wire rope is wound on the hydraulic winch and stretched out, passing through the movable pulley and fixed on the top of the shaft. 10. The scientific investigation ship with a lifting fin system according to claim 6, characterized in that: the two-stage oil cylinder is fixed on the inner wall of the shaft by a plurality of vertically arranged fixing clips.