CN114408740B

CN114408740B - High stability marine truss-like order of gram is hung davit

Info

Publication number: CN114408740B
Application number: CN202210308277.5A
Authority: CN
Inventors: 王伟; 王凯
Original assignee: Nantong Dezhong Technology Development Co ltd
Current assignee: Nantong Dezhong Technology Development Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-06-07
Anticipated expiration: 2042-03-28
Also published as: CN114408740A

Abstract

The invention discloses a high-stability marine truss type crane jib, and relates to the technical field of ship machinery; the marine engineering truss crane specifically comprises a marine engineering truss, a boom travelling assembly, a boom rotating seat and a boom support, wherein the boom travelling assembly is slidably mounted on the outer side of the marine engineering truss, the boom travelling assembly drives a crane to travel on the outer side of the marine engineering truss, the boom rotating seat is mounted between the boom travelling assembly and the boom support, and the boom rotating seat drives the boom support to rotate in the horizontal direction. When the suspension arm moves, the front and back heights of the telescopic suspension arm and the load suspension arm can be adjusted through the balance oil cylinders on the two sides, so that the suspension arm is kept horizontal when cargoes are hoisted, when the telescopic suspension arm stretches inside the load suspension arm through the suspension arm oil cylinder, the balance oil cylinder stretches, so that when a ship body shakes, the displacement caused by the shaking of the ship body is compensated, the stability of the suspension arm and the cargoes is kept, and the application stability of the suspension arm is further improved.

Description

High stability marine truss-like order of gram is hung davit

Technical Field

The invention relates to the technical field of ship machinery, in particular to a high-stability marine truss type crane jib.

Background

As a transport means, the ship has the advantages of large carrying capacity and low operation cost compared with the means used in other transport modes. The development of a transport ship generally goes through three stages of a boat raft, a wooden sailing ship and a steam engine ship, and is in the era of a steel ship using a diesel engine as basic power, with the development of world economy, modern transport ships form huge fleets with various types, complex technologies and high specialization, and the modern transport ships are composed of two parts, namely a ship body (including an upper-layer building) and a power device (see a ship power device), and are provided with various outfitting equipment and systems although the types are various and the structures are different.

The crane is also called as a ship crane and a ship crane, is a large deck machine on a ship, and is equipment for loading and unloading cargos on the ship.

In view of the above, the present invention provides a high stability marine truss crane jib to solve the technical problems in the prior art.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a high-stability marine truss type crane jib.

The invention provides a high-stability marine truss type crane jib, which comprises a marine truss, a jib walking assembly, a jib rotating seat and a jib support, wherein the jib walking assembly is slidably arranged on the outer side of the marine truss, the jib walking assembly drives the crane to walk on the outer side of the marine truss, the jib rotating seat is arranged between the jib walking assembly and the jib support, the jib rotating seat drives the jib support to rotate in the horizontal direction, fixed large arms which are distributed obliquely are arranged on both sides of the jib support, the end parts of the two fixed large arms are respectively and rotatably provided with a jib front connecting piece and a jib rear connecting piece, the bottom of the jib front connecting piece is rotatably provided with a jib limit sleeve mechanism, the bottom of the jib rear connecting piece is rotatably provided with a jib mounting seat, and a load-carrying jib is arranged between the jib limit sleeve mechanism and the jib mounting seat, and the inside slidable mounting of load davit has flexible davit, the outer end of flexible davit is provided with the lifting hook connecting seat, and the inner of flexible davit installs spacing slider, spacing slider and load davit inner wall sliding connection, the davit hydro-cylinder is all installed to the top and the bottom of load davit, and the tailpiece of the piston rod portion of davit hydro-cylinder installs and promotes the connecting piece, promotes connecting piece fixed mounting in the outside of flexible davit, all articulated between the both sides of davit support and the both sides of load davit have the balanced hydro-cylinder.

Preferably, the boom limiting sleeve mechanism comprises a limiting sleeve ring and a fixing sleeve ring, the fixing sleeve ring is stably connected with the end part of the load boom, and the outer side of the limiting sleeve ring is rotatably connected with the front boom connecting piece.

Preferably, the inner walls of the two sides of the limiting lantern ring are respectively provided with a guide sliding block, and the outer sides of the telescopic suspension arm and the limiting sliding block are respectively provided with a rectangular sliding groove matched with the guide sliding block.

Preferably, a plurality of dispersing guide blocks are mounted on the inner walls of the two sides of the load-carrying suspension arm, and the dispersing guide blocks are connected with the inner wall of the rectangular sliding groove in a sliding mode.

Preferably, an arc-shaped sliding groove is formed in the suspension arm support, a side supporting mechanism is installed in the arc-shaped sliding groove through a spring, and the bottom end of the side supporting mechanism is installed on the outer side of the load-carrying suspension arm.

In the invention, preferably, the side supporting mechanism comprises a side supporting bracket with an inverted U-shaped structure, a fixing ring is hinged inside the side supporting bracket, and the fixing ring is installed on the outer side of the load-carrying boom.

In the invention, preferably, the bottom parts of the suspension arm mounting seat and the load-carrying suspension arm are both fixedly provided with a hanging frame, the bottom part of the hanging frame is fixedly provided with a counterweight mechanism, and the outer side of the counterweight mechanism is provided with a liquid guide pipe.

Preferably, the counterweight mechanism comprises a shell with a disc-shaped structure, a damping rotating shaft is fixedly mounted inside the shell, a plurality of partition plates are fixedly mounted on the outer side of the damping rotating shaft, and a buffer cavity is arranged between every two adjacent partition plates.

In the invention, preferably, the bottom of the partition board is provided with a plurality of strip-shaped grooves, and the cross sections of the strip-shaped grooves are distributed in a Z-shaped structure.

Compared with the prior art, the invention provides the marine truss type crane jib with high stability, which has the following beneficial effects:

a large fixed arm, a front boom connecting piece and a rear boom connecting piece are arranged between a boom structure and a boom support, the bottoms of the front boom connecting piece and the rear boom connecting piece are respectively rotated with the outer side of a load boom, the boom can drive a telescopic boom and the front and rear height of the load boom to be adjusted through balance oil cylinders on two sides when moving, so that the boom is kept horizontal when the goods are hoisted, the balance oil cylinders stretch when the telescopic boom stretches inside the load boom through the boom oil cylinders, the displacement caused by the shaking of a ship body is compensated when the ship body shakes, the stability of the boom and the goods is kept, and the application stability of the boom is improved.

Drawings

Fig. 1 is a schematic structural diagram of a high-stability marine truss type crane boom according to the present invention;

FIG. 2 is a schematic cross-sectional view of a high stability marine truss type crane jib according to the present invention;

FIG. 3 is a schematic structural diagram of a boom limit sleeve mechanism of a high-stability marine truss type crane boom according to the present invention;

FIG. 4 is a schematic structural view of a load-carrying boom of the high-stability marine truss type crane boom according to the present invention;

FIG. 5 is a schematic top view of a counterweight mechanism of a high-stability marine truss crane jib according to the present invention;

fig. 6 is a schematic cross-sectional structural view of a counterweight mechanism of a high-stability marine truss crane boom according to the present invention.

In the figure: 1. a marine truss; 2. a boom support; 3. a boom rear connector; 4. a boom mounting base; 5. a side bracing mechanism; 6. a catheter; 7. a counterweight mechanism; 701. a housing; 702. a buffer chamber; 703. a partition plate; 704. a damping rotating shaft; 705. a strip-shaped groove; 8. a hanger; 9. a boom cylinder; 10. a load-carrying boom; 11. a suspension arm limiting sleeve mechanism; 1101. a limiting lantern ring; 1102. a fixed collar; 1103. a guide slider; 12. pushing the connecting piece; 13. a telescopic suspension arm; 14. a hook connecting seat; 15. a boom front connector; 16. fixing the large arm; 17. a balancing oil cylinder; 18. a boom rotation base; 19. a boom walk assembly; 20. a limiting slide block; 21. dispersing the guide blocks; 22. a rectangular chute.

Detailed Description

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientations and positional relationships shown in the figures, and are used for convenience in describing the patent and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-6, a high stability marine truss crane boom comprises a marine truss 1, a boom walking assembly 19, a boom rotating base 18 and a boom support 2, wherein the boom walking assembly 19 is slidably mounted on the outer side of the marine truss 1, the boom walking assembly 19 drives a crane to walk on the outer side of the marine truss 1, the boom rotating base 18 is mounted between the boom walking assembly 19 and the boom support 2, the boom rotating base 18 drives the boom support 2 to rotate in the horizontal direction, the boom support 2 is provided with two obliquely distributed large fixed arms 16 on both sides, the ends of the two large fixed arms 16 are respectively rotatably mounted with a boom front connector 15 and a boom rear connector 3, the bottom of the boom front connector 15 is rotatably mounted with a boom stop sleeve mechanism 11, the bottom of the boom rear connector 3 is rotatably mounted with a boom mounting base 4, and a load-carrying boom 10 is mounted between the boom stop sleeve mechanism 11 and the boom mounting base 4, a telescopic boom 13 is slidably mounted inside the load-carrying boom 10, a hook connecting seat 14 is arranged at the outer end of the telescopic boom 13, a limiting slide block 20 is mounted at the inner end of the telescopic boom 13, the limiting slide block 20 is slidably connected with the inner wall of the load-carrying boom 10, boom cylinders 9 are mounted at the top and the bottom of the load-carrying boom 10, a push connecting piece 12 is mounted at the end part of a piston rod of the boom cylinder 9, the push connecting piece 12 is fixedly mounted at the outer side of the telescopic boom 13, and balance cylinders 17 are hinged between the two sides of the boom support 2 and the two sides of the load-carrying boom 10; a large fixed arm 16, a front boom connecting piece 15 and a rear boom connecting piece 3 are arranged between a boom structure and a boom support 2, the bottoms of the front boom connecting piece 15 and the rear boom connecting piece 3 are respectively rotated with the outer side of a load boom 10, the boom can drive a telescopic boom 13 and the front and rear height of the load boom 10 to be adjusted through balance oil cylinders 17 on two sides when moving, so that the boom is kept horizontal when lifting goods, when the telescopic boom 13 is stretched inside the load boom 10 through a boom oil cylinder 9, the balance oil cylinder 17 stretches, so that when a ship body shakes, displacement caused by shaking of the ship body is compensated, the stationarity of the boom and the goods is kept, and the application stability of the boom is improved.

As a further scheme of the present invention, the boom limiting sleeve mechanism 11 includes a limiting sleeve ring 1101 and a fixing sleeve ring 1102, the fixing sleeve ring 1102 is stably connected to the end of the load boom 10, the outer side of the limiting sleeve ring 1101 is rotatably connected to the boom front connector 15, the load boom 10 is sealed by the fixing sleeve ring 1102, and the connecting strength between the telescopic boom 13, the load boom 10 and the boom front connector 15 is enhanced by the rotary connection between the limiting sleeve ring 1101 and the boom front connector 15, the stress on the opening of the load boom 10 is reduced, and the service life of the boom is prolonged.

As a further scheme of the present invention, the inner walls of both sides of the limiting collar 1101 are respectively provided with a guiding slider 1103, and the outer sides of the telescopic boom 13 and the limiting slider 20 are respectively provided with a rectangular sliding slot 22 adapted to the guiding slider 1103, when the telescopic boom 13 moves, the guiding slider 1103 slides inside the rectangular sliding slot 22 to limit and guide both sides of the telescopic boom 13, so as to improve the stability of the movement of the telescopic boom 13, and the guiding slider 1103 is matched with the rectangular sliding slot 22 to disperse the pulling force of both sides of the telescopic boom 13, thereby reducing the stress of the boom limiting collar mechanism 11 on the telescopic boom 13.

As a further scheme of the present invention, a plurality of dispersion guide blocks 21 are installed on the inner walls of both sides of the load-carrying boom 10, and the dispersion guide blocks 21 are slidably connected to the inner walls of the rectangular sliding grooves 22, so that the friction between the limit slide block 20 and the inner wall of the load-carrying boom 10 is reduced through the connection between the dispersion guide blocks 21 and the rectangular sliding grooves 22, and further the wear rate of the inner wall of the load-carrying boom 10 is reduced, and meanwhile, the dispersion guide blocks 21 sectionally disperse the load-carrying stress of the telescopic boom 13, thereby avoiding the load-carrying deformation phenomenon of the telescopic boom 13, and further improving the stability of the boom.

As a further scheme of the present invention, an arc-shaped chute is arranged inside the boom support 2, a side support mechanism 5 is installed inside the arc-shaped chute through a spring, and the bottom end of the side support mechanism 5 is installed outside the load-carrying boom 10, when the position between the boom support 2 and the load-carrying boom 10 changes, the side support mechanism 5 is pushed by the spring to buffer and reset the displacement received by the side surface of the load-carrying boom 10, so as to effectively reduce the horizontal swing amplitude of the load-carrying boom 10 and improve the use stability of the boom.

As a further scheme of the present invention, the side supporting mechanism 5 includes a side supporting bracket with an inverted U-shaped structure, and a fixing ring is hinged inside the side supporting bracket, the fixing ring is installed outside the load-carrying boom 10, and when the load-carrying boom 10 moves, the fixing ring is driven to move inside the side supporting bracket, and further the side supporting bracket is driven to displace, and the spring is driven to deform, and under the action of the restoring force of the spring, both sides of the load-carrying boom 10 are reset.

As a further scheme of the invention, the bottom parts of the suspension arm mounting seat 4 and the load-carrying suspension arm 10 are both fixedly provided with a hanging rack 8, the bottom part of the hanging rack 8 is fixedly provided with a counterweight mechanism 7, the outer side of the counterweight mechanism 7 is provided with a liquid guide pipe 6, when the suspension arm is applied, water or heavy oil is introduced into the counterweight mechanism 7 through a delivery pump and the liquid guide pipe 6, the counterweight water or heavy oil is supplemented according to the mass of the heavy object and the extension length of the telescopic suspension arm 13, the weight between two ends of the suspension arm is balanced, and the stability of the suspension arm in the process of lifting goods is improved.

As a further scheme of the present invention, the counterweight mechanism 7 includes a housing 701 having a disc-shaped structure, a damping rotating shaft 704 is fixedly installed inside the housing 701, a plurality of partition plates 703 are fixedly installed outside the damping rotating shaft 704, a buffer cavity 702 is disposed between two adjacent partition plates 703, when water is introduced into the housing 701 as a counterweight, and the boom swings, the water inside collides in the buffer cavity 702 to drive the partition plates 703 to rotate, and after the boom rotates, the damping rotating shaft 704 resets to drive the partition plates 703 to slowly rotate, so as to eliminate impact force generated when water or heavy oil rotates.

As a further scheme of the present invention, the bottom of the partition 703 is provided with a plurality of strip grooves 705, the cross section of each strip groove 705 is distributed in a Z-shaped structure, the solution of the counterweight collides in the buffer chamber 702, and when the buffer solution impacts, the solution can flow to another buffer chamber 702 through the strip grooves 705, so as to reduce the impact on the partition 703 and the inner wall of the housing 701, and slowly flow back after resetting, thereby further improving the stability in the counterweight adjustment process.

When the crane is used, a large fixed arm 16, a front boom connecting piece 15 and a rear boom connecting piece 3 are installed between the boom structure and the boom support 2, the bottoms of the front boom connecting piece 15 and the rear boom connecting piece 3 are respectively rotated with the outer side of the load boom 10, the boom can move through the balance oil cylinders 17 on two sides to drive the telescopic boom 13 and adjust the front and rear height of the load boom 10, so that the boom is kept horizontal when the cargo is hoisted, when the telescopic boom 13 is stretched inside the load boom 10 through the boom oil cylinder 9, the balance oil cylinder 17 stretches, so that when the ship body shakes, the displacement caused by the shaking of the ship body is compensated, and the stability of the boom and the cargo is kept.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A high-stability marine truss type crane boom comprises a marine truss (1), boom traveling assemblies (19), boom rotating seats (18) and boom supports (2), wherein the boom traveling assemblies (19) are slidably mounted on the outer side of the marine truss (1), the boom traveling assemblies (19) drive the crane to travel on the outer side of the marine truss (1), the boom rotating seats (18) are mounted between the boom traveling assemblies (19) and the boom supports (2), the boom rotating seats (18) drive the boom supports (2) to rotate in the horizontal direction, the crane boom crane is characterized in that two-boom crane boom, the bottom of the suspension arm rear connecting piece (3) is rotatably provided with a suspension arm mounting seat (4), a load-bearing suspension arm (10) is arranged between the suspension arm limiting sleeve mechanism (11) and the suspension arm mounting seat (4), a telescopic boom (13) is slidably arranged in the load-carrying boom (10), a hook connecting seat (14) is arranged at the outer end of the telescopic boom (13), and the inner end of the telescopic suspension arm (13) is provided with a limiting slide block (20), the limiting slide block (20) is connected with the inner wall of the loading suspension arm (10) in a sliding way, the top and the bottom of the load-carrying suspension arm (10) are both provided with a suspension arm oil cylinder (9), and the end part of a piston rod of the boom oil cylinder (9) is provided with a pushing connecting piece (12), the pushing connecting piece (12) is fixedly arranged at the outer side of the telescopic boom (13), balance oil cylinders (17) are hinged between the two sides of the boom support (2) and the two sides of the load-carrying boom (10).

2. A high stability marine truss crane jib as claimed in claim 1 wherein said jib stop collar mechanism (11) comprises a stop collar (1101) and a fixed collar (1102), and the fixed collar (1102) is firmly connected to the end of the load-carrying jib (10), and the outer side of the stop collar (1101) is rotatably connected to the jib front connection member (15).

3. The marine truss crane jib as claimed in claim 2, wherein the inner walls of both sides of the position-limiting collar (1101) are provided with guide sliders (1103), and the outsides of the telescopic jib (13) and the position-limiting sliders (20) are provided with rectangular sliding grooves (22) adapted to the guide sliders (1103).

4. A high stability marine truss crane jib as claimed in claim 3 wherein said load jib (10) has a plurality of dispersion guides (21) mounted on both side inner walls, and said dispersion guides (21) are slidably connected to the inner walls of the rectangular chute (22).

5. The marine truss crane jib as claimed in claim 1, wherein an arc-shaped sliding groove is provided inside the jib support (2), and a side support mechanism (5) is mounted inside the arc-shaped sliding groove through a spring, and the bottom end of the side support mechanism (5) is mounted outside the load-carrying jib (10).

6. A high stability marine truss crane jib as claimed in claim 5 wherein said side bracing mechanism (5) comprises an inverted U-shaped side bracing frame, and the inside of the side bracing frame is hinged with a fixing ring mounted on the outside of the load-carrying jib (10).

7. The marine truss crane jib as claimed in claim 1, wherein the bottom of the jib mount base (4) and the load-carrying jib (10) are both fixedly mounted with a hanger (8), and the bottom of the hanger (8) is fixedly mounted with a counterweight mechanism (7), and the outer side of the counterweight mechanism (7) is mounted with a liquid guide pipe (6).

8. A high stability marine truss crane jib as claimed in claim 7, wherein said counterweight mechanism (7) comprises a housing (701) with a disc-shaped structure, and a damping rotating shaft (704) is fixedly installed inside the housing (701), and a plurality of partition plates (703) are fixedly installed outside the damping rotating shaft (704), and a buffer chamber (702) is disposed between two adjacent partition plates (703).

9. The marine truss crane jib as claimed in claim 8, wherein the bottom of the partition plate (703) is provided with a plurality of strip grooves (705), and the cross section of the strip grooves (705) is distributed in a Z-shaped structure.