CN210236889U

CN210236889U - Davit boat raft gallows

Info

Publication number: CN210236889U
Application number: CN201920885031.8U
Authority: CN
Inventors: Zhenhua Chen; 陈震华
Original assignee: Wuxi Huahai Marine Equipment Co Ltd
Current assignee: Wuxi Huahai Marine Equipment Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-04-03
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a davit boat raft hanger, which comprises a mother ship, wherein a rotary table seat is arranged at the side part of a deck of the mother ship, and a rotary table is rotatably arranged on the rotary table seat; the hoisting device comprises a rotating platform, a hoisting arm and a first fixed pulley, wherein the rotating platform is arranged on the upper end of the hoisting arm, the rotating platform is arranged on the lower end of the hoisting arm, the lower end of the hoisting arm is fixedly provided with the first winch and the second winch, the top tail end of the hoisting arm is provided with the first fixed pulley, the middle part of the hoisting arm is provided with the second fixed pulley, a first rope led out by the first winch strides over the first fixed pulley, and a second rope led out by the second winch strides over the second fixed pulley; the utility model has the advantages of simple structure, the rotatory in-process of revolving stage is not taken place to rock, improves the stability of this mechanism to the cooperation that adopts magnetic adsorption disc and electro-magnet enables.

Description

Davit boat raft gallows

Technical Field

The utility model belongs to the yacht field.

Background

After the davit upwards mentions the boat raft on the surface of water through the rope, need just can transport the deck with the boat raft on the surface of water with the rotatory certain angle of revolving stage on, at the rotatory in-process of revolving stage, because the boat raft is in the suspension state, and then because self inertia, and then take place easily and rock the phenomenon of swaying.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the not enough of existence among the prior art, the utility model provides a davit raft gallows that translation in-process is avoided rocking is hanging in midair.

The technical scheme is as follows: in order to achieve the purpose, the boom boat and raft hanger comprises a mother ship, wherein a rotary table seat is arranged on the side part of a deck of the mother ship, and a rotary table is rotatably arranged on the rotary table seat; the hoisting device comprises a rotating platform, a hoisting arm and a first fixed pulley, wherein the rotating platform is arranged on the upper end of the hoisting arm, the rotating platform is arranged on the lower end of the hoisting arm, the lower end of the hoisting arm is fixedly provided with the first winch and the second winch, the top tail end of the hoisting arm is provided with the first fixed pulley, the middle part of the hoisting arm is provided with the second fixed pulley, a first rope led out by the first winch strides over the first fixed pulley, and a second rope led out by the second winch strides over the second fixed pulley; the first rope across the first fixed pulley is a first lifting rope; the second rope crossing the second fixed pulley is a second hoisting rope; the lower end of the first lifting rope is hung with a lifting hook, and the lower end of the second lifting rope is hung with a clamping jaw.

Further, still include the boat raft, the side is provided with the centre gripping stake respectively and colludes the ring around on the boat raft, the clamping jaw can fixed centre gripping be in on the centre gripping stake, the lifting hook can be hooked up and is established collude on the ring.

Further, a magnetic adsorption disc made of a magnetic material is fixedly installed at the tail end of the boat and the raft; a horizontal linear push rod motor is fixedly installed at one side, close to the clamping jaw/lifting hook, of the lower end of the suspension arm, and an electromagnet is fixedly connected to the tail end of a horizontal push rod of the linear push rod motor; the magnetic pole of the electromagnet can be magnetically attracted with the magnetic adsorption disc.

Has the advantages that: the utility model has simple structure, the suspended raft can not shake in the rotating process of the rotating platform by adopting the matching of the magnetic adsorption disc and the electromagnet, and the stability of the mechanism is improved; meanwhile, the device can also be used as a crane.

Drawings

FIG. 1 is a schematic view of the apparatus as a whole;

fig. 2 is a schematic diagram of the boat raft ascending to the same height as the linear motor;

fig. 3 is a schematic view of a magnetic pole attraction state between a magnetic adsorption disc on the boat and an electromagnet;

fig. 4 is an overall plan view of the mother ship.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The davit boat raft gallows as attached figure 1 to 4, its characterized in that: the ship comprises a mother ship 100, wherein a rotary table base 20 is arranged on the side of a deck 17 of the mother ship 100, and a rotary table 19 is rotatably arranged on the rotary table base 20; the hoisting device further comprises an obliquely arranged hoisting arm 11, the root of the lower end of the hoisting arm 11 is fixed on the rotating platform 19, a first winch 1 and a second winch 16 are respectively installed at the lower end of the hoisting arm 11, a first fixed pulley 6 is installed at the tail end of the top of the hoisting arm 11, a second fixed pulley 5 is installed in the middle of the hoisting arm 11, a first rope 4 led out by the first winch 1 spans over the first fixed pulley 6, and a second rope 3 led out by the second winch 16 spans over the second fixed pulley 5; the first rope 4 that spans the first fixed sheave 6 is a first hoisting rope 7; the second rope 3 crossing the second fixed sheave 5 is a second hoisting rope 10; a lifting hook 8 is hung at the lower end of the first lifting rope 7, and a clamping jaw 9 is hung at the lower end of the second lifting rope 10;

still include boat raft 25, the side is provided with centre gripping stake 23 and colludes ring 24 respectively around on the boat raft 25, clamping jaw 9 can fix the centre gripping on the centre gripping stake 23, lifting hook 8 can be hooked up and establish collude on the ring 24.

A magnetic adsorption disc 22 made of a magnetic material is fixedly arranged at the tail end of the boat and raft 25; a horizontal linear push rod motor 12 is fixedly installed at one side of the lower end of the suspension arm 11 close to the clamping jaw 9/the lifting hook 8, and an electromagnet 15 is fixedly connected to the tail end of a horizontal push rod 14 of the linear push rod motor 12; the magnetic pole 13 of the electromagnet 15 can be magnetically attracted with the magnetic adsorption disc 22;

the operation method, the process and the technical progress of the scheme are organized as follows:

and (3) recovering the raft 25:

running the boat raft 25 below the suspension arm 11, and then simultaneously controlling the first winch 1 and the second winch 16 so as to synchronously pay off the first winch 1 and the second winch 16; further, the lifting hook 8 and the clamping jaw 9 are synchronously descended, when the lifting hook 8 and the clamping jaw 9 descend to the boat raft 25 on the water surface, a person on the boat raft 25 manually fixes and clamps the clamping jaw 9 on the clamping pile 23, and hooks the lifting hook 8 on the hook ring 24; then controlling the first winch 1 and the second winch 16 to synchronously take up the first winch 1 and the second winch 16; further enabling the boat raft 25 to ascend synchronously along with the lifting hook 8 and the clamping jaw 9 and to be separated from the water surface upwards, pausing the first winch 1 and the second winch 16 when the boat raft 25 ascends to the position with the same height as the linear push rod motor 12, then controlling the linear push rod motor 12 to enable the horizontal push rod 14 to do extension movement until the magnetic pole 13 of the electromagnet 15 displaces to be in contact with the magnetic adsorption disc 22 at the tail end part of the boat raft 25; at the moment, the electromagnet 15 is controlled to be electrified, so that the magnetic pole 13 is tightly attracted with the magnetic adsorption disc 22; at the moment, the control rotating platform 19 rotates 90 degrees, so that the boat raft 25 rotates along the rotating platform 19 to a position right above the deck 17 along with the suspension arm 11, in the rotating process of the control rotating platform 19, the boat raft 25 is subjected to electromagnetic suction, the phenomenon of shaking is avoided, then the electromagnet 15 is powered off, and the first winch 1 and the second winch 16 are controlled to synchronously pay off, so that the boat raft 25 can descend onto the deck 17;

the above description is only a preferred embodiment of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. Davit boat raft gallows, its characterized in that: the ship comprises a mother ship (100), wherein a rotary table base (20) is arranged on the side part of a deck (17) of the mother ship (100), and a rotary table (19) is rotatably arranged on the rotary table base (20); the hoisting device is characterized by further comprising a hoisting arm (11) which is obliquely arranged, the root of the lower end of the hoisting arm (11) is fixed on the rotating platform (19), a first winch (1) and a second winch (16) are respectively installed at the lower end of the hoisting arm (11), a first fixed pulley (6) is installed at the tail end of the top of the hoisting arm (11), a second fixed pulley (5) is installed in the middle of the hoisting arm (11), a first rope (4) led out by the first winch (1) spans over the first fixed pulley (6), and a second rope (3) led out by the second winch (16) spans over the second fixed pulley (5); the first rope (4) across the first fixed pulley (6) is a first hoisting rope (7); the second rope (3) crossing the second fixed pulley (5) is a second hoisting rope (10); the lower end of the first lifting rope (7) is hung with a lifting hook (8), and the lower end of the second lifting rope (10) is hung with a clamping jaw (9).

2. The boom boat raft hanger of claim 1, wherein: still include boat raft (25), the side is provided with centre gripping stake (23) respectively and colludes ring (24) around on boat raft (25), clamping jaw (9) can fix the centre gripping and be in on centre gripping stake (23), lifting hook (8) can be hooked up and establish collude on ring (24).

3. The boom boat raft hanger of claim 2, wherein: a magnetic adsorption disc (22) made of magnetic materials is fixedly arranged at the tail end of the boat and raft (25); a horizontal linear push rod motor (12) is fixedly installed on one side, close to the clamping jaw (9)/the lifting hook (8), of the lower end of the suspension arm (11), and an electromagnet (15) is fixedly connected to the tail end of a horizontal push rod (14) of the linear push rod motor (12); the magnetic pole (13) of the electromagnet (15) can be magnetically attracted with the magnetic adsorption disc (22).