A shipboard single-arm slewing dual-rescue-boat hoist system

Abstract

The application discloses a shipborne single-arm rotary double-rescue-boat hoist system, which comprises a rotary hoisting arm provided with a boat hoist winch I and a boat hoist winch II at the rear end of the arm, the rotary hoisting arm is provided with a fixed pulley, a first boat hoist cable of the boat hoist winch I is connected with a first lock catch part through the fixed pulley, and a second boat hoist cable of the boat hoist winch II is connected with a second lock catch part through a movable pulley; the rotary hoisting arm is provided with a guide rail set, the movable pulley is arranged on the guide rail set through a pulley movable seat; the movable pulley is driven to displace along the rotary hoisting arm through the guide rail set, the position of the second lock catch part for hoisting a rescue boat on the rotary hoisting arm is adjusted, and the transverse boat hoist distance S formed between the second lock catch part and the first lock catch part is adjusted. The double-rescue-boat hoist design can improve the boat hoist efficiency, the movable pulley on the rotary hoisting arm can adjust the boat hoist distance, and the safety, flexibility and convenience of the boat hoist are ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of ship-mounted boat hoist, and particularly relates to a ship-mounted single-arm rotary double-rescue-boat hoist system. BACKGROUND

[0002] The ship-mounted rescue-boat hoist is generally a necessary lifesaving equipment for a ship, which is mainly installed on a clamping plate and arranged close to a ship side. In the rescue-boat hoist operation process, the existing boat hoist can generally only hoist one rescue boat at a time, and the rescue-boat hoisting efficiency is low. In the case of emergency rescue, it will affect the rescue-boat lowering speed and slow down the rescue rhythm, which brings hidden troubles to the whole rescue task. SUMMARY

[0003] The present application provides a ship-mounted single-arm rotary double-rescue-boat hoist system, which can improve the boat hoisting efficiency through the design of the double-rescue-boat hoist, and can adjust the boat hoisting distance through the movable pulley on the rotary hoisting arm, so as to ensure the safety, flexibility and convenience of boat hoisting.

[0004] Technical scheme: To achieve the above-mentioned purpose, a ship-mounted single-arm rotary double-rescue-boat hoist system of the present application comprises a rotary hoisting arm; the rear end of the rotary hoisting arm is provided with a boat hoisting winch I and a boat hoisting winch II, the front end of the rotary hoisting arm is provided with a fixed pulley, the first boat hoisting cable of the boat hoisting winch I is connected with a first lock catch part through the fixed pulley, a movable pulley is arranged on the arm body of the rotary hoisting arm, the second boat hoisting cable of the boat hoisting winch II is connected with a second lock catch part through the movable pulley; the movable pulley is correspondingly arranged on a pulley movable seat, the rotary hoisting arm is provided with a guide rail set along the arm length direction, and the movable pulley is arranged on the guide rail set through the pulley movable seat; the movable pulley is driven to displace along the arm length direction of the rotary hoisting arm through the guide rail set, the position of the second lock catch part for hoisting a rescue boat on the rotary hoisting arm is adjusted, and the horizontal boat hoisting distance S formed between the second lock catch part and the first lock catch part is adjusted.

[0005] Further, the guide rail set is composed of a driving guide rail and a supporting guide rail which are parallel to each other, the driving guide rail is located on the side surface of the rotary hoisting arm, and the supporting guide rail is located on the top of the rotary hoisting arm; the movable pulley is connected with the driving guide rail and the supporting guide rail through the pulley movable seat, the driving guide rail provides displacement driving force for the movable pulley on the rotary hoisting arm, and the supporting guide rail provides guidance and support for the displacement of the movable pulley on the rotary hoisting arm.

[0006] Further, the first part of the boat launching winch has a front cable pulley block, and the first remote control cable drawn from the first part of the boat launching winch is guided through the front cable pulley block installed at the front end of the slewing jib; the second part of the boat launching winch has a rear cable pulley block, and the second remote control cable drawn from the second part of the boat launching winch is guided through the rear cable pulley block installed on the movable pulley seat.

[0007] Further, the movable pulley seat is provided with a rope locking device, and the movable pulley is driven to displace along the slewing jib in a driven guide rail state, and the second boat launching cable and the second remote control cable are locked through the rope locking device.

[0008] Further, the rope locking device comprises a locking seat, a boat launching cable locking driving part and a cable locking driving part installed on the locking seat; the locking seat is provided with a boat launching cable locking hole and a cable locking hole, the second boat launching cable passes through the boat launching cable locking hole, the cable locking hole passes through the cable locking hole, the boat launching cable locking driving part enters and exits the boat launching cable locking hole from the seat surface of the locking seat to press and release the second boat launching cable, and the cable locking driving part enters and exits the cable locking hole from the seat surface of the locking seat to press and release the second remote control cable.

[0009] Further, the boat launching cable locking driving part and the cable locking driving part are the same in structure and each is composed of a push-pull end of a cylinder connected with a rope pressing rod; the width of the rope pressing end of the rope pressing rod is greater than the hole diameter of the boat launching cable locking hole and the hole diameter of the cable locking hole.

[0010] Further, a slewing device disc is arranged on the deck of the ship through a base, and the slewing jib is driven to slewing to realize the position conversion inside and outside the shipboard of the ship through the slewing device disc.

[0011] Further, the slewing jib is a single-arm body structure.

[0012] Beneficial effects: the double-rescue-boat lifting design can improve the boat launching efficiency, and the movable pulley on the slewing jib can adjust the boat launching distance to ensure the safety, flexibility and convenience of boat launching, wherein the second locking part and the first locking part are responsible for being connected with two rescue boats respectively, and the first part of the boat launching winch and the second part of the boat launching winch are responsible for boat launching operation respectively, so that two rescue boats can be lifted at the same time, that is, the double-boat lifting operation is more efficient; the movable pulley can displace on the slewing jib, so that the horizontal distance between the second locking part and the first locking part is adjusted, and the horizontal boat lifting distance S is obtained, so that the collision damage between the two boats during the double-boat lifting operation is avoided, and the safety, flexibility and convenience of boat launching are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0014] Figure 2 Structure diagram of the slewing jib;

[0015] Figure 3 Structure diagram of the slewing jib; Figure 2 Structure diagram of the A area;

[0016] Figure 4 Structure diagram of the pulley movable seat and its connecting parts. DETAILED DESCRIPTION

[0017] The application will be further described below in connection with the drawings.

[0018] As Figure 1 shown, a ship-mounted single-arm slewing dual-rescue-boat hoisting system includes a slewing jib 1, which is a single-arm body structure. A slewing device disc 3 is arranged on the ship deck through a base 2, and the slewing jib 1 is driven to rotate by the slewing device disc 3 to realize position conversion inside and outside the ship side.

[0019] As Figure 1 and Figure 2As shown, the arm rear end of the slewing jib 1 is provided with a boat winch part 4 and a boat winch part 5, the arm front end of the slewing jib 1 is provided with a fixed pulley 42, the first boat cable 40 of the boat winch part 4 is connected with the first lock part 41 through the fixed pulley 42, the arm body of the slewing jib 1 is provided with a movable pulley 52, the second boat cable 50 of the boat winch part 5 is connected with the second lock part 51 through the movable pulley 52; the movable pulley 52 is correspondingly arranged on the pulley movable seat 6, the slewing jib 1 is provided with a guide rail group 8 along the arm length structure direction, the movable pulley 52 is arranged on the guide rail group 8 through the pulley movable seat 6; the movable pulley 52 is driven to displace along the arm length direction of the slewing jib 1 through the guide rail group 8, the position of the second lock part 51 for hoisting the rescue boat on the slewing jib 1 is adjusted, and the horizontal boat hoisting distance S formed between the second lock part 51 and the first lock part 41 is adjusted. The boat hoisting efficiency can be improved through the double rescue boat hoisting design, the boat hoisting distance can be adjusted through the movable pulley on the slewing jib, and the safety, flexibility and convenience of boat hoisting are ensured, wherein the second lock part 51 and the first lock part 41 are respectively responsible for being connected with two rescue boats, the boat winch part 4 and the boat winch part 5 are respectively responsible for boat hoisting operation, two rescue boats can be simultaneously hoisted, that is, more efficient double-boat hoisting operation is realized; the movable pulley 52 can displace on the slewing jib 1, so that the horizontal distance between the second lock part 51 and the first lock part 41 is adjusted, the horizontal boat hoisting distance S is avoided, and the collision damage between the boats during the double-boat hoisting operation is avoided, so that the safety, flexibility and convenience of boat hoisting are improved.

[0020] As shown in the drawings, Figure 2 Or Figure 3 As shown, the guide rail group 8 is composed of the driving guide rail 81 and the supporting guide rail 82 which are parallel to each other, the driving guide rail 81 is located on the side of the slewing jib 1, and the supporting guide rail 82 is located on the top of the slewing jib 1; the movable pulley 52 is connected with the driving guide rail 81 and the supporting guide rail 82 through the pulley movable seat 6, the driving guide rail 81 provides the displacement driving force of the movable pulley 52 on the slewing jib 1, and the driving guide rail 81 can be selected as a linear servo sliding table module with high control precision; the supporting guide rail 82 provides the guide and support for the displacement of the movable pulley 52 on the slewing jib 1, and the support is more important for the movable pulley 52, in the case of using the linear servo sliding table module alone, the support is not enough, and there is a safety hazard, therefore, the double guide rail structure design is adopted, which not only provides the driving, but also meets the strength requirement of the support.

[0021] As shown in the drawings, Figure 2 And Figure 3As shown, the first part of the boat winch 4 has a front cable pulley block 9, the first remote control cable 43 from the first part of the boat winch 4 is guided through the front cable pulley block 9 installed at the front end of the slewing jib 1; the second part of the boat winch 5 has a rear cable pulley block 10, the second remote control cable 53 from the second part of the boat winch 5 is guided through the rear cable pulley block 10 installed on the pulley movable seat 6. The front cable pulley block 9 and the rear cable pulley block 10 are both provided with two, respectively corresponding to the slewing remote control line and the remote control release line included in the first remote control cable 43, and the slewing remote control line and the remote control release line of the second remote control cable 53.

[0022] As shown in Figure 1 and Figure 2 As shown, the pulley movable seat 6 is provided with a rope locking device 7, and the movable pulley 52 is driven to displace along the slewing jib 1 through the driving guide rail 81, and the second boat hoisting cable 50 and the second remote control cable 53 are locked through the rope locking device 7. When the movable pulley 52 is displaced to adjust the transverse boat hoisting spacing S, the second boat hoisting cable 50 and the second remote control cable 53 can be locked through the rope locking device 7 at this time, so as to avoid that the corresponding second locking buckle part 51 causes the height of the rescue boat hoisted by the locking buckle to change during the displacement of the movable pulley 52, and avoid that the height change of the rescue boat causes the collision with other objects in the vertical direction. Therefore, when the transverse boat hoisting spacing S is adjusted, if it is desired to ensure that the current height of the rescue boat does not change, the first step is to lock the second boat hoisting cable 50 and the second remote control cable 53 through the rope locking device 7, and the second step is to start the second part of the boat winch 5 to wind or release the rope. When the movable pulley 52 is lowered, that is, the transverse boat hoisting spacing S is adjusted to be larger, the second part of the boat winch 5 winds the rope, and when the movable pulley 52 is raised, that is, the transverse boat hoisting spacing S is adjusted to be smaller, the second part of the boat winch 5 releases the rope, so as to maintain the current height of the rescue boat and improve the safety. During the double-boat hoisting operation, if a horizontal obstacle is encountered on the slewing jib 1, the horizontal obstacle can be avoided by adjusting the transverse boat hoisting spacing S, and the flexibility and safety are higher.

[0023] In addition, if it is necessary to adjust the height of the rescue boat on the second locking buckle part 51 to avoid a vertical obstacle, at this time the rope locking device 7 cannot lock the second boat hoisting cable 50 and the second remote control cable 53, and the height of the rescue boat can be increased by winding the rope through the second part of the boat winch 5, or the height of the rescue boat can be increased by raising the movable pulley 52, or the rope is wound through the second part of the boat winch 5 and the movable pulley 52 is raised at the same time, so as to cross the vertical obstacle, and the obstacle avoidance ability of the double-boat hoisting is greatly improved.

[0024] As shown in Figure 3 and Figure 4As shown, the locking rope device 7 comprises a locking seat 71, a boat launching cable lock driving part 72 and a cable lock driving part 73 installed on the locking seat 71; the locking seat 71 is provided with a boat launching cable lock hole 7a and a cable lock hole 7b, the second boat launching cable 50 passes through the boat launching cable lock hole 7a, and the cable lock hole 7b passes through the cable lock hole 7b, the boat launching cable lock driving part 72 enters and exits the boat launching cable lock hole 7a from the seat surface of the locking seat 71 to press and release the second boat launching cable 50, and the cable lock driving part 73 enters and exits the cable lock hole 7b from the seat surface of the locking seat 71 to press and release the second remote control cable 53. More specifically, the boat launching cable lock driving part 72 and the cable lock driving part 73 are the same in structure, each being composed of a push-pull end of a cylinder connected with a rope pressing rod; the width of the rope pressing end of the rope pressing rod is greater than the hole diameter of the boat launching cable lock hole 7a and the hole diameter of the cable lock hole 7b, so as to ensure the stability of the rope pressing rod pressing the second boat launching cable 50 and the second remote control cable 53 in the locking state, and avoid unlocking.

[0025] The above description is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A shipboard single-arm slewing dual rescue boat hoist system, characterized by: The application relates to a rotary crane boom (1), the rear end of the rotary crane boom (1) is provided with a boat hoisting winch part I (4) and a boat hoisting winch part II (5), the front end of the rotary crane boom (1) is provided with a fixed pulley (42), a first boat hoisting cable (40) of the boat hoisting winch part I (4) is connected with a first locking part (41) through the fixed pulley (42), a movable pulley (52) is arranged on the arm body of the rotary crane boom (1), a second boat hoisting cable (50) of the boat hoisting winch part II (5) is connected with a second locking part (51) through the movable pulley (52), the movable pulley (52) is correspondingly arranged on a pulley movable seat (6), guide rail groups (8) are arranged on the rotary crane boom (1) along the arm length structure direction, the movable pulley (52) is arranged on the guide rail groups (8) through the pulley movable seat (6), the movable pulley (52) is driven to displace along the arm length direction of the rotary crane boom (1) through the guide rail groups (8), the position of the second locking part (51) for hoisting a rescue boat on the rotary crane boom (1) is adjusted, and the transverse boat hoisting distance S formed between the second locking part (51) and the first locking part (41) is adjusted. The guide rail groups (8) are composed of driving guide rails (81) and supporting guide rails (82) which are parallel to each other, the driving guide rails (81) are located on the side of the rotary crane boom (1), and the supporting guide rails (82) are located on the top of the rotary crane boom (1); the movable pulley (52) is connected with the driving guide rails (81) and the supporting guide rails (82) through the pulley movable seat (6), the driving guide rails (81) provide displacement driving force for the movable pulley (52) on the rotary crane boom (1), and the supporting guide rails (82) provide guidance and support for the displacement of the movable pulley (52) on the rotary crane boom (1). The boat hoisting winch part I (4) is provided with a front end cable pulley group (9), a first remote control cable (43) led out from the boat hoisting winch part I (4) is guided through the front end cable pulley group (9) arranged on the front end of the rotary crane boom (1); the boat hoisting winch part II (5) is provided with a rear end cable pulley group (10), a second remote control cable (53) led out from the boat hoisting winch part II (5) is guided through the rear end cable pulley group (10) arranged on the pulley movable seat (6); The pulley movable seat (6) is provided with a rope locking device (7), the second boat hoisting cable (50) and the second remote control cable (53) are locked through the rope locking device (7) in the state that the movable pulley (52) is driven to displace along the rotary crane boom (1) through the driving guide rails (81).

2. A shipboard single-arm slewing dual lifeboat crane system according to claim 1, characterised in that: The locking rope device (7) comprises a locking seat (71), a boat launching rope lock driving part (72) and a cable lock driving part (73) installed on the locking seat (71); the locking seat (71) is provided with a boat launching rope lock hole (7a) and a cable lock hole (7b); the second boat launching rope (50) passes through the boat launching rope lock hole (7a) correspondingly, the cable lock hole (7b) passes through the cable lock hole (7b) correspondingly; the boat launching rope lock driving part (72) enters and exits the boat launching rope lock hole (7a) from the seat surface of the locking seat (71) to press and release the second boat launching rope (50); the cable lock driving part (73) enters and exits the cable lock hole (7b) from the seat surface of the locking seat (71) to press and release the second remote control cable (53).

3. A shipboard single-arm slewing dual lifeboat crane system according to claim 2, characterised in that: The boat launching rope lock driving part (72) and the cable lock driving part (73) are the same in structure and each is composed of a pressing rope rod connected with the push-pull end of a cylinder; the width of the pressing rope end of the pressing rope rod is greater than the hole diameter of the boat launching rope lock hole (7a) and the hole diameter of the cable lock hole (7b).

4. A single-arm slewing dual rescue boat winch system for a ship as claimed in any one of claims 3, characterised in that: The application relates to a ship crane, which comprises a rotary device disc (3) arranged on a ship deck through a base (2), and a rotary jib (1) driven to rotate by the rotary device disc (3) to realize position conversion inside and outside the ship side of a ship.

5. A single-arm slewing dual rescue boat winch system for a ship as claimed in any one of claims 3, characterised in that: The rotary jib (1) is a single-arm body structure.

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