CN110668323A

CN110668323A - Marine hoisting accessory

Info

Publication number: CN110668323A
Application number: CN201910965505.4A
Authority: CN
Inventors: 廖俊峰; 陈敏; 杨毅; 蒋胜
Original assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Current assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-01-10

Abstract

The invention provides a marine hoisting device, and relates to the technical field of hoisting equipment. The marine hoisting device comprises a hoisting frame, a hoisting rope and a driving mechanism, wherein the hoisting frame comprises a hoisting frame main rod and a hoisting frame upper arm, the hoisting frame upper arm is suspended and extended towards one side direction of the hoisting frame main rod, the marine hoisting device has a hoisting state and a transfer state, a supporting base is detachably installed at the bottom of the hoisting frame main rod, the middle part of the hoisting frame main rod is rotatably connected with a rotary constraint structure, when the marine hoisting device is in the hoisting state, the supporting base is fixedly connected with a deck, the rotary constraint structure is detachably and fixedly connected with a cargo hatch fence, and the crane main rod is rotatably supported and matched with the supporting base; still be equipped with on the gallows mobile jib and transport pulley and bearing structure, transport the pulley and be located the opposite side mutually of the direction of overhanging of gallows upper arm, when marine hoisting accessory is in the transport state, the loop wheel machine mobile jib separates with supporting the base, and bearing structure constitutes the supporting part that is used for bearing the weight of the goods towards one side part of the direction of overhanging of gallows upper arm.

Description

Marine hoisting accessory

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a marine hoisting device.

Background

The bulk cargo ship is a ship specially used for loading and transporting bulk cargo, a cargo hold is arranged at the lower part of a deck, a cargo hatch is directly arranged on the deck, and a fence is arranged at the position of the cargo hold, but the ship is not provided with hoisting equipment generally and needs special hoisting equipment at a wharf or a port. To facilitate unloading of cargo holds, lifting equipment has been developed that can be mounted on the hull of a ship.

For example, the application publication number CN103896162A and the application publication number 2014.07.02 of the chinese invention disclose a marine fixed sundries crane, and specifically disclose that the crane comprises a base, a crane base is fixedly arranged above the base, the base and the crane base are connected through a high-strength bolt, a revolving part capable of axially rotating relative to the crane base is arranged above the crane base, and the revolving part is connected with the crane base through a revolving support. The specific working process is as follows: the base of the sundry crane is fixedly connected with a ship deck, a pneumatic motor is started to drive a winding drum of the lifting winch to rotate, a movable pulley is driven to lift by winding and unwinding a steel wire rope, a rotary speed reducer is driven to drive a rotary part to rotate, and accordingly sundries are lowered to a preset position to finish lifting.

After the sundries crane is used for lifting the cargos, a carrier is used for carrying the cargos, and in addition, the movable crane needs to be disassembled. Subsequently, a chinese patent with an authority publication number of CN104291234B and an authority publication date of 2016.05.18 was developed, which discloses a portable crane for discharging a cargo oil pump from a cabin, and specifically discloses that the portable crane includes a boom, the boom is broken at a middle portion to form a first boom and a second boom, the first boom and the second boom are connected by a flange, a pulley is disposed at a rear side of the boom, a steering wheel is disposed at a rear side close to the other end of the boom, a fixed bracket and a steering wheel fixing frame are disposed on a deck surface, and a fixed guide wheel is disposed at a top of the fixed bracket. The fixed support and the steering wheel fixing frame can be disassembled to form a base of the crane, so that the portable crane is convenient to store, and in addition, the crane is convenient to move by arranging the pulleys on the rear side of the crane arm.

When the portable crane in the prior art is used, the whole portable crane can be firmly fixed only by matching the fixed support arranged on the deck surface and the guide wheel fixed frame, the crane cannot turn to place goods at the specified position of the deck after being installed in place, and the installation operation of the crane is complex. In addition, the rear side of the boom is provided with a pulley only for self-movement, which is limited in functionality for subsequent cargo transfers.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a marine crane apparatus, which solves the problems that a crane in the prior art cannot be steered to place a cargo at a specified position on a deck after being installed in place, the crane installation operation is complicated, and the functionality is limited for the subsequent cargo transfer.

The technical scheme of the marine hoisting device is as follows:

the marine hoisting device comprises a hanger, a hoisting rope and a driving mechanism, wherein the hoisting rope is installed on the hanger, the hanger comprises a hanger main rod and a hanger upper arm, the hanger upper arm extends in a suspending manner towards one side direction of the hanger main rod, and the marine hoisting device has a hoisting state and a transferring state; the bottom of the hanger main rod is detachably provided with a supporting base, and the middle of the hanger main rod is rotatably connected with a rotation restraining structure; when the marine hoisting device is in a hoisting state, the support base is used for being fixedly connected with a deck, the crane main rod is in rotating support fit with the support base, and the rotary constraint structure is used for being detachably and fixedly connected with the cargo hatch fence;

still be equipped with on the gallows mobile jib and transport pulley and bearing structure, transport the pulley and be located the opposite side of the direction of overhanging of gallows upper arm mutually, when marine hoisting accessory is in the transport state, the loop wheel machine mobile jib separates with the support base, bearing structure constitutes the supporting part that is used for bearing the weight of the goods towards one side part of the direction of overhanging of gallows upper arm.

Has the advantages that: when the marine hoisting device is in a hoisting state, the crane main rod is in rotating supporting fit with the supporting base, and the rotation restraining structure plays a horizontal restraining role on the hanger main rod, so that the hanger main rod is prevented from tilting when in a vertical hoisting state, the marine hoisting device is ensured to be stably in the vertical hoisting state, and the hanger can be rotated to transfer hoisted goods to a deck; compared with the portable crane in the prior art, the structure of a fixed support and a guide wheel fixed frame is omitted, the marine hoisting device can be firmly installed on the deck, the hanger can rotate after installation to place goods at a specified position of the deck, only a supporting base is needed to be arranged, and the rotation restraining structure is connected with the cargo hatch coaming, so that the marine hoisting device is simple to install and operate; when marine hoisting accessory is in the transit state, the goods is placed on bearing structure, plays the effect of bearing the weight of the goods through bearing structure and gallows mobile jib, when satisfying hoisting accessory self and removing, has still compromise the effect of transporting the goods, and the service function nature is stronger.

Further, gyration restraint structure includes gyration cover and connection structure, the gallows mobile jib rotates to be installed in the gyration cover, connection structure's one end with gyration cover fixed connection, connection structure's the other end is used for enclosing the removable fixed connection of fender with the goods hatch.

Furthermore, connection structure is the connection otic placode, be equipped with on the connection otic placode be used for with fix the detachable fixed connection's of the cab apron of crossing on the goods hatch encloses the fender connecting portion.

Furthermore, the connecting part is a first pin hole arranged on the connecting lug plate, the transition plate is provided with a second pin hole, and the rotation restraining structure further comprises a limiting bolt correspondingly penetrating in the first pin hole and the second pin hole.

Furthermore, in order to ensure that the connection between the rotation restraining structure and the cargo hatch coaming is stable and firm, the connecting lug plate is provided with a triangular outer contour, the rotation sleeve is connected to the top corner part of the connecting lug plate, two first pin holes are formed in the first pin holes, and the two first pin holes are distributed on the connecting lug plate and are close to two bottom corners.

Furthermore, in order to simplify the supporting structure, the supporting structure is a supporting arm fixed on the hanger main rod, the supporting arm extends perpendicular to the plane where the hanger main rod and the hanger upper arm are located, and one side part of the supporting arm facing the overhanging direction of the hanger upper arm forms the supporting part for bearing the goods.

Further, in order to prevent the goods in transit from dropping, releasable connection has the railing on the support arm, the railing extends towards the direction of gallows upper arm place one side, just be connected with the fastening rope that is used for fastening the goods in the transportation between the railing.

Further, the tip of support arm is equipped with the nipple joint that extends towards the direction of gallows upper arm place one side, the railing is hollow body, the railing cartridge is on the nipple joint.

Furthermore, radially extending's jack has been seted up on the nipple joint, also radially extending's perforation has been seted up to the correspondence on the railing, still cartridge runs through jack and fenestrate pin between nipple joint and the railing.

Furthermore, in order to improve the stability of the hoisting operation, the rotary sleeve is provided with a threaded hole extending in the radial direction, and a locking bolt used for tightly jacking the main rod of the hanging bracket is assembled in the threaded hole in a threaded manner.

Drawings

Fig. 1 is a schematic perspective view of a marine hoisting device in a hoisting state according to an embodiment 1 of the marine hoisting device of the present invention;

FIG. 2 is a schematic front view of the marine lifting device of FIG. 1 coupled to a cargo hatch coaming;

FIG. 3 is a schematic front view of the marine lifting device of FIG. 1 during transfer of cargo;

figure 4 is a schematic top view of the marine lifting device of figure 3 (with the railing removed).

In the figure: the device comprises a hanger 1, a hanger 10, a hanger main rod, a hanger 11, a hanger upper arm, a swing constraint structure 12, a swing sleeve 120, a transition plate 121, a connecting lug plate 122, a locking bolt 123, a supporting base 13, a transfer pulley 14, a lifting rope 2, a driving mechanism 3, a supporting arm 40, a railing 41, a pup joint 42 and a cargo hatch fence 5.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the embodiment 1 of the marine hoisting device of the present invention, as shown in fig. 1 to 4, the marine hoisting device has a hoisting state and a transfer state, and in the hoisting state, the marine hoisting device is installed on a deck near a cargo hatch for hoisting cargo in the cargo hold; when the ship is in a transshipment state, the ship lifting device is horizontally placed on the deck, the goods can be directly placed on the ship lifting device, and the goods are transported through the ship lifting device. The marine hoisting device comprises a hanger 1, a hoisting rope 2 installed on the hanger 1 and a driving mechanism 3, wherein in the embodiment, the hanger 1 comprises a hanger main rod 10 and a hanger upper arm 11, and the hanger upper arm 11 is suspended towards one side direction of the hanger main rod 10. When lifting by crane the state, loop wheel machine mobile jib 10 is the hollow pipe body that extends along vertical direction, and gallows upper arm 11 is connected on the top of gallows mobile jib 10 and extends along the direction of slant upward, and when gallows upper arm 11 that extends to the slant upward supplied whole gallows 1 to install on the deck in the cargo hatch outside, the operation of lifting by crane the lifting hook on the rope 2 can lift by crane the goods in the cargo hold.

Be equipped with support base 13 in the bottom of gallows mobile jib 10, support base 13 includes the support sleeve in the middle of and connects four floor in the support sleeve periphery, play additional strengthening intensity and the effect that improves support stability to support sleeve through the floor, the bottom clearance fit of support sleeve and gallows mobile jib 10, support base 13 plays vertical support effect to whole gallows 1, the total weight of whole gallows 1 and goods is being born the weight of in-process lifting by crane, avoid the direct and deck face contact in bottom of gallows mobile jib 10, influence the ride comfort and the stability of gallows 1 gyration. In addition, the supporting base 13 is welded and fixed on the deck, and the bottom of the crane main rod 10 is prevented from moving to influence the stability of the lifting operation through the rotating supporting matching of the supporting base 13 and the crane main rod 10.

A rotation restraining structure 12 is rotatably connected to the middle of the hanger main rod 10, the rotation restraining structure 12 comprises a rotation sleeve 120 and a connecting ear plate 122, wherein the inner diameter of the rotation sleeve 120 is slightly larger than the outer diameter of the hanger main rod 10, and the hanger main rod 10 can rotate circumferentially in the rotation sleeve 120; the rotary sleeve 120 is provided with a threaded hole extending radially, the threaded hole is internally provided with a locking bolt 123 for tightly pushing the hanger main rod 10, the hanger main rod 10 in the rotary sleeve 120 is locked in a limiting manner by screwing the locking bolt 123, the rotary action of the hanger 1 in the lifting process is avoided, and the stability of the lifting operation is improved.

The two connecting lug plates 122 are arranged, the two connecting lug plates 122 are respectively positioned in an upper horizontal plane and a lower horizontal plane, the connecting lug plates 122 are provided with the outer contours of isosceles triangles, the top corner parts of the connecting lug plates 122 are welded with the outer wall of the rotary sleeve 120, and the spacing distance between the two connecting lug plates 122 is matched with the plate thickness of the transition plate 121; a transition plate 121 in the horizontal plane is fixed on the outer side of the cargo hatch opening enclosure 5, the plate thickness of the transition plate 121 is matched with the interval between the two connecting lug plates 122, one end of the transition plate 121 is fixedly connected with the cargo hatch opening enclosure 5, and the other end of the transition plate 121 is inserted into the interval between the two connecting lug plates 122 and is detachably and fixedly connected with the two connecting lug plates 122.

When the marine hoisting device is in a hoisting state, the whole hoisting frame 1 is vertically placed, the bottom of the hoisting frame main rod 10 is supported on a deck through the support base 13, and the positions of the hoisting machine 1 and the rotary sleeve 120 are adjusted to enable the interval between the two connecting lug plates 122 to be aligned with the position of the transition plate 121, in the embodiment, the connecting lug plates 122 are provided with two first pin holes, and the two first pin holes are respectively arranged at the positions of the connecting lug plates 122 close to the two base corners, namely the two first pin holes are distributed at the left side and the right side of the hoisting frame main rod 10; correspondingly, two second pin holes are formed in the other end of the transition plate 121, the two second pin holes correspond to the two first pin holes in position respectively, and when the other end of the transition plate 121 is inserted into the interval between the two connecting lug plates 122, a limit bolt is inserted through the first pin hole and the second pin hole.

Realize connecting otic placode 122 and cross the removable fixed connection between the cab apron 121 through spacing pin to make gyration constraint structure 12 and cargo hatch enclose to keep off removable fixed connection between 5, play the horizontal constraint effect to gallows mobile jib 10 through gyration constraint structure 12, avoid gallows mobile jib 10 to take place to heel when the vertical state of lifting by crane, both guaranteed that marine hoisting accessory can stably be in the vertical state of lifting by crane, can make gallows 1 again to carry out the gyration action and then shift to the deck with the goods of lifting by crane. Compare in the portable loop wheel machine among the prior art, saved the structure of fixed bolster and leading wheel mount, also made the firm installation on deck of marine hoisting accessory, moreover, installation back gallows 10 can turn round and place the goods in the assigned position on deck, only need set up support base 13, with turn round restraint structure 12 with the goods hatch coaming be connected can, marine hoisting accessory's installation easy operation.

The hanger main rod 10 is further provided with a transfer pulley 14 and a support structure, the transfer pulley 14 is located on the opposite side of the hanging direction of the hanger upper arm 11, in the embodiment, the transfer pulleys 14 are provided with two transfer pulleys, and the two transfer pulleys 14 are arranged at intervals from top to bottom. An upper wheel carrier is arranged at the connecting position of the hanger main rod 10 and the hanger upper arm 11, a hoisting pulley and an upper transfer pulley are arranged in the upper wheel carrier, the hoisting pulley is close to the hanger main rod 10, and the upper transfer pulley is far away from the hanger main rod 10; the hanger main rod 10 is also provided with a lower wheel frame, wherein the driving mechanism 3 is arranged on the lower wheel frame, the driving mechanism 3 is of a crank winding drum structure, the driving mechanism 3 is connected with the lifting rope 2, and the lifting rope 2 can be collected and released through manual operation of the driving mechanism 3. The lower wheel frame is provided with a lower transfer pulley far away from the hanger main rod 10, when the marine lifting device is placed horizontally, the whole hanger 1 is supported by the upper and lower transfer pulleys 14, and the transfer pulleys 14 are in running fit with the deck when the marine lifting device is pushed and pulled, so that the transfer operation of the marine lifting device is realized.

The support structure is two support arms 40 fixed on the hanger main rod 10, the two support arms 40 are arranged at intervals up and down, the support arms 40 extend perpendicular to the length direction of the hanger main rod 10, and the support arms 40 extend perpendicular to the vertical plane where the hanger main rod 10 and the hanger upper arm 11 are located. When the marine hoisting device is in a transfer state, goods are placed on one side of the two support arms 40 facing upwards, the support arms 40 and the hanger main rod 10 play a role in bearing the goods, and one side part of the two support arms 40 facing the overhanging direction of the hanger upper arm 11 forms a support part for bearing the goods.

In order to prevent the goods in transit from falling, the end part of the supporting arm 40 is provided with a short joint 42 extending towards one side direction of the upper arm 11 of the hanging bracket, and a rail 41 is detachably inserted on the short joint 42. Wherein, nipple 42 and support arm 40 welded fastening are connected, and nipple 42 perpendicular to the vertical plane extension that gallows mobile jib 10 and support arm 40 were located. Offer the jack of radial extension on nipple joint 42, guardrail 41 is the hollow body, also corresponds on railing 41 and offers the perforation of radial extension, and the cartridge has the pin that runs through jack and perforation between nipple joint 42 and guardrail 41, realizes nipple joint 42 and guardrail 41's releasable connection through wearing the dress pin. When the cargo is placed on the ship crane in the transfer state, the fastening rope is tied between the guardrails 41, and the cargo is fastened to the hanger main rod 10 and the support arm 40 through the fastening rope. Compare in the portable loop wheel machine among the prior art, satisfy hoisting accessory self and removed the effect of having still compromise the transportation goods, use the functional stronger.

In other specific embodiments of the marine hoisting device of the present invention, in order to simplify the connection form between the hanger and the cargo hatch opening enclosure, the transition plate disposed on the cargo hatch opening enclosure may be omitted, and the ear plate is provided with the vertical flanging, which is detachably and fixedly connected with the cargo hatch opening enclosure through the vertical flanging, specifically: the bolt holes are formed in the vertical flanging, the corresponding bolt holes are also formed in the cargo hatch opening baffle, and the vertical flanging and the cargo hatch opening baffle are tightly connected through bolts and nuts. Or the structure of the ear plates is simplified, the two ear plates can be replaced by a triangular frame, the top corner part of the triangular frame is fixedly connected with the rotary sleeve, and the bottom edge of the triangular frame is detachably and fixedly connected with the cargo hatch coaming.

In other specific embodiments of the marine hoisting device, in order to meet different use requirements, the support structure is not limited to the support arm, but also can be a support plate, the plate surface of the support plate is perpendicular to the vertical plane where the main rod of the hanger and the upper arm of the hanger are located, and the plate surface of the support plate facing to the side where the upper arm of the hanger is located forms a support part for bearing goods. Or the supporting structure is a supporting frame, the supporting frame is perpendicular to a vertical plane where the hanging bracket main rod and the hanging bracket upper arm are located, and a plate surface of the supporting frame facing to one side where the hanging bracket upper arm is located forms a supporting portion used for bearing goods.

In other specific embodiments of the marine hoisting device, in order to adapt to different use requirements, the driving mechanism is not limited to a crank reel structure, but also can be a motor reel mechanism, and the reel is driven by a motor to rotate so as to realize the winding and unwinding of the hoisting rope.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A marine hoisting device comprises a hanger, a hoisting rope and a driving mechanism, wherein the hoisting rope and the driving mechanism are installed on the hanger; the bottom of the hanger main rod is detachably provided with a supporting base, and the middle of the hanger main rod is rotatably connected with a rotation restraining structure; when the marine hoisting device is in a hoisting state, the support base is used for being fixedly connected with a deck, the crane main rod is in rotating support fit with the support base, and the rotary constraint structure is used for being detachably and fixedly connected with the cargo hatch fence;

2. The marine lifting device as claimed in claim 1, wherein the rotation restricting structure includes a rotation sleeve and a connecting structure, the main rod of the lifting frame is rotatably mounted in the rotation sleeve, one end of the connecting structure is fixedly connected with the rotation sleeve, and the other end of the connecting structure is used for being detachably and fixedly connected with the cargo hatch fence.

3. Marine hoisting device according to claim 2, wherein the connection structure is a connection lug, the connection lug being provided with a connection portion for releasable and fixed connection to a transition plate fixed to the cargo hatch coaming.

4. The marine lifting device according to claim 3, wherein the connecting portion is a first pin hole formed in the connecting lug plate, the transition plate is provided with a second pin hole, and the rotation restricting structure further comprises a limiting bolt correspondingly inserted into the first pin hole and the second pin hole.

5. The marine lifting device as claimed in claim 4, wherein the connecting lug plate has a triangular outer contour, the swivel sleeve is connected to a top corner portion of the connecting lug plate, two first pin holes are formed, and the two first pin holes are distributed on the connecting lug plate near two bottom corners.

6. The marine lifting device of any one of claims 1 to 5, wherein the support structure is a support arm fixed to the boom main bar, the support arm extending perpendicular to a plane in which the boom main bar and the boom upper arm are located, and a portion of the support arm on a side facing an overhanging direction of the boom upper arm constitutes the support portion for carrying the cargo.

7. The marine lifting device of claim 6, wherein the support arms are detachably connected with railings extending in a direction toward the side of the upper arm of the lifting frame, and fastening ropes for fastening cargo during transportation are connected between the railings.

8. The marine lifting device of claim 7, wherein the end of the support arm is provided with a short section extending in a direction of a side of the upper arm of the hanger, the rail is a hollow pipe body, and the rail is inserted into the short section.

9. The marine lifting device of claim 8, wherein the short section is provided with a radially extending insertion hole, the balustrade is correspondingly provided with a radially extending through hole, and a pin penetrating the insertion hole and the through hole is inserted between the short section and the balustrade.

10. The marine lifting device of claim 2, wherein the swivel sleeve is provided with a radially extending threaded hole, and the threaded hole is internally threaded with a locking bolt for tightening the main rod of the hanger.