Limiting device for marine crane

Abstract

The utility model provides a limiting device for a marine crane, which belongs to the technical field of marine cranes and comprises a mounting seat, a crane body arranged on the surface of the mounting seat, two groups of limiting clamping mechanisms mounted on the surface of the mounting seat, and two groups of blocking limiting mechanisms mounted on the surface of the mounting seat. According to the scheme, the crane body is placed through the mounting base, then the crane body is clamped and limited from the two sides through the limiting and clamping mechanism, and therefore the stability of the crane body is guaranteed; and through the arrangement of the blocking and limiting mechanism, the crane body can be blocked when the crane body is not used, so that the crane body is protected, meanwhile, the moving track of a worker can be limited, and the crane body and the worker are protected.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship cranes, and in particular relates to a limiting device for ship cranes. Background Art

[0002] Marine cranes are heavy lifting equipment specially designed for handling, loading and unloading cargo on ships. Marine cranes are usually composed of a crane body, hook, wire rope, motor, control system, etc. The main function of a marine crane is to load and unload cargo on a ship. It can be used to lift cargo in the ship's cargo hold, load and unload containers, and lift equipment on board. Marine cranes are usually installed on the deck of a ship or at the hatch of a ship, and the cargo is lifted and moved by the crane's hook and wire rope.

[0003] When the existing ship crane is in use, the impact of water flow on the hull will cause the crane to shake, which may cause the crane to shake and thus create danger. In addition, when the crane is not in use, it is inconvenient to block and limit the crane, so that when the hull shakes, objects and personnel will collide with the crane. For this reason, we propose a limiting device for a ship crane. Utility Model Content

[0004] The purpose of the utility model is to provide a limiting device for a marine crane, aiming to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A limiting device for a ship crane comprises: a mounting seat, a crane body is arranged on the surface of the mounting seat, two sets of limiting clamping mechanisms are installed on the surface of the mounting seat, two sets of blocking and limiting mechanisms are installed on the surface of the mounting seat, two first blocking plates are installed on the surface of the blocking and limiting mechanisms, a second blocking plate is rotatably connected to the surface of the first blocking plate, and a connecting mechanism is installed on the surface of the second blocking plate.

[0007] As a preferred solution of the utility model, the limit clamping mechanism includes a limit seat installed on the surface of the mounting seat, the surface of the limit seat is rotatably connected to a threaded rod, the surface of the threaded rod is threadedly connected to an internal threaded block, the surface of the internal threaded block is fixedly connected to a clamping plate, a servo motor is installed on the surface of the limit seat, and the output shaft of the servo motor is fixedly connected to one end of the threaded rod.

[0008] As a preferred solution of the utility model, a slot adapted to the base of the crane body is provided on the inner side of the clamping plate, and the width of the clamping plate is greater than the width of the bottom of the crane body.

[0009] As a preferred solution of the utility model, guide grooves are provided on both sides of the limit seat, and the internal thread block is slidably connected to the surface of the guide groove.

[0010] As a preferred solution of the utility model, the blocking and limiting mechanism includes a mounting lower plate installed on the surface of the mounting seat, a connecting frame is provided on the surface of the mounting lower plate, an mounting upper plate is installed on the top of the connecting frame, electric cylinders are installed on the surface of the mounting lower plate and on both sides of the connecting frame, and the top of the electric cylinder is fixedly connected to the bottom of the mounting upper plate.

[0011] As a preferred solution of the utility model, movable grooves are provided on the inner surfaces of the lower mounting plate and the upper mounting plate, and the upper and lower ends of the connecting frame are respectively slidably connected to the surfaces of the movable grooves on both sides.

[0012] As a preferred solution of the utility model, the connecting mechanism includes a connecting block installed on the surface of the second blocking plate on one side and an inserting plate installed on the surface of the second blocking plate on the other side, a guide block is installed on the surface of the connecting block, and an inserting block adapted to the inserting plate is provided on the surface of the guide block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] This solution places the crane body through the mounting seat, and then clamps and limits the crane body from both sides through the limiting clamping mechanism, so as to ensure the stability of the crane body. By setting the blocking and limiting mechanism, the crane body can be blocked when the crane body is not in use, so as to protect the crane body. At the same time, the movement trajectory of the staff can be limited, thereby protecting the crane body and the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a local structure in the structure of the utility model;

[0019] Figure 3 The utility model structure Figure 2 A magnified view of the local structure at center A;

[0020] Figure 4It is a schematic diagram of the blocking and limiting mechanism in the structure of the utility model;

[0021] Figure 5 The utility model structure Figure 4 An enlarged view of the local structure at point B.

[0022] In the figure: 1. mounting seat; 2. crane body; 3. limit clamping mechanism; 301. limit seat; 302. threaded rod; 303. internal thread block; 304. clamping plate; 305. servo motor; 306. guide groove; 4. blocking limit mechanism; 401. mounting lower plate; 402. connecting frame; 403. mounting upper plate; 404. electric cylinder; 5. first blocking plate; 6. second blocking plate; 7. connecting mechanism; 701. connecting block; 702. guide block; 703. plug-in block; 704. plug-in plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] See also Figure 1-4 , the technical solution provided by this embodiment is as follows:

[0026] A limiting device for a marine crane comprises: a mounting seat 1, a crane body 2 is arranged on the surface of the mounting seat 1, two groups of limiting clamping mechanisms 3 for limiting the crane body 2 are installed on the surface of the mounting seat 1, two groups of blocking limiting mechanisms 4 for blocking and protecting the crane body 2 are installed on the surface of the mounting seat 1, two first blocking plates 5 are installed on the surface of the blocking limiting mechanisms 4, a second blocking plate 6 is rotatably connected to the surface of the first blocking plate 5, and a connecting mechanism 7 for closing the two second blocking plates 6 is installed on the surface of the second blocking plate 6.

[0027] In a specific embodiment of the utility model, the crane body 2 is placed by means of the mounting seat 1, and then the crane body 2 is clamped and limited from both sides by means of the limiting clamping mechanism 3, so as to ensure the stability of the crane body 2. By setting the blocking limiting mechanism 4, the crane body 2 can be blocked when the crane body 2 is not in use, so as to protect the crane body 2, and at the same time, the moving trajectory of the staff can be limited, thereby protecting the crane body 2 and the staff.

[0028] Specifically, the limit clamping mechanism 3 includes a limit seat 301 installed on the surface of the mounting seat 1, the surface of the limit seat 301 is rotatably connected to a threaded rod 302, the surface of the threaded rod 302 is threadedly connected to an internal thread block 303, the surface of the internal thread block 303 is fixedly connected to a clamping plate 304, a servo motor 305 is installed on the surface of the limit seat 301, and the output shaft of the servo motor 305 is fixedly connected to one end of the threaded rod 302, a slot adapted to the base of the crane body 2 is provided on the inner side of the clamping plate 304, and the width of the clamping plate 304 is greater than the width of the bottom of the crane body 2, guide grooves 306 are provided on both sides of the limit seat 301, and the internal thread block 303 is slidably connected to the surface of the guide groove 306.

[0029] In a specific embodiment of the utility model, the servo motor 305 starts its output shaft to drive the threaded rod 302 to rotate. The rotation of the threaded rod 302 drives the internal thread block 303 to move, thereby driving the clamping plate 304 to move, thereby clamping the crane body 2. By setting the card slot, the limiting effect of the crane body 2 can be increased. By setting the size of the clamping plate 304, the stabilizing effect of the crane body 2 can be increased. By setting the guide groove 306, the stability of the internal thread block 303 during movement can be increased, thereby further increasing the clamping effect of the crane body 2.

[0030] Specifically, the blocking and limiting mechanism 4 includes a mounting lower plate 401 mounted on the surface of the mounting seat 1, a connecting frame 402 is provided on the surface of the mounting lower plate 401, an mounting upper plate 403 is installed on the top of the connecting frame 402, electric cylinders 404 are installed on the surface of the mounting lower plate 401 and on both sides of the connecting frame 402, and the top of the electric cylinder 404 is fixedly connected to the bottom of the mounting upper plate 403, movable grooves are provided on the relatively inner surfaces of the mounting lower plate 401 and the mounting upper plate 403, and the upper and lower ends of the connecting frame 402 are respectively slidably connected to the surfaces of the movable grooves on both sides.

[0031] In a specific embodiment of the utility model, when the electric cylinder 404 is started, its top end drives the mounting plate 403 to move, and the movement of the mounting plate 403 drives the connecting frame 402 to adjust the angle, thereby blocking the staff. By setting the movable groove, the position of the connecting frame 402 during the angle adjustment can be limited, thereby better supporting the mounting plate 403.

[0032] Specifically, the connecting mechanism 7 includes a connecting block 701 installed on the surface of the second blocking plate 6 on one side and an inserting plate 704 installed on the surface of the second blocking plate 6 on the other side. A guide block 702 is installed on the surface of the connecting block 701, and an inserting block 703 adapted to the inserting plate 704 is provided on the surface of the guide block 702.

[0033] In a specific embodiment of the utility model, the two second blocking plates 6 are fixed by moving the insert block 703 on the surface of the guide block 702 and inserting the insert block 703 into the insert plate 704, thereby increasing the stability of the second blocking plates 6 when in use.

[0034] Working principle: The crane body 2 is placed on the mounting seat 1, and then the servo motor 305 is started. The output shaft of the servo motor 305 drives the threaded rod 302 to rotate. The rotation of the threaded rod 302 drives the internal thread block 303 to move, thereby driving the clamping plate 304 to move, thereby clamping the crane body 2, thereby ensuring the stability of the crane body 2. When the crane body 2 is not in use, the electric cylinder 404 is started. When the electric cylinder 404 is started, its top drives the mounting plate 403 to move. The movement of the mounting plate 403 drives the connecting frame 402 to adjust the angle, thereby blocking the staff. The crane body 2 can be blocked when the crane body 2 is not in use, thereby protecting the crane body 2. At the same time, the moving trajectory of the staff can be limited, thereby protecting the crane body 2 and the staff.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A limiting device for a marine crane, characterized in that: include: A mounting seat (1), a crane body (2) is arranged on the surface of the mounting seat (1), two groups of limit clamping mechanisms (3) are installed on the surface of the mounting seat (1), two groups of blocking limit mechanisms (4) are installed on the surface of the mounting seat (1), two first blocking plates (5) are installed on the surface of the blocking limit mechanisms (4), the surface of the first blocking plate (5) is rotatably connected to a second blocking plate (6), and the surface of the second blocking plate (6) is installed with a connecting mechanism (7).

2. A limiting device for a marine crane according to claim 1, characterized in that: The position limiting clamping mechanism (3) comprises a position limiting seat (301) mounted on the surface of the mounting seat (1); the surface of the position limiting seat (301) is rotatably connected to a threaded rod (302); the surface of the threaded rod (302) is threadedly connected to an internal thread block (303); the surface of the internal thread block (303) is fixedly connected to a clamping plate (304); a servo motor (305) is mounted on the surface of the position limiting seat (301); and the output shaft of the servo motor (305) is fixedly connected to one end of the threaded rod (302).

3. A limiting device for a marine crane according to claim 2, characterized in that: A clamping groove adapted to the base of the crane body (2) is provided on the inner side of the clamping plate (304), and the width of the clamping plate (304) is greater than the width of the bottom of the crane body (2).

4. A limiting device for a marine crane according to claim 3, characterized in that: Guide grooves (306) are provided on both sides of the limiting seat (301), and the internal thread block (303) is slidably connected to the surface of the guide groove (306).

5. The limiting device for a marine crane according to claim 1, characterized in that: The blocking and limiting mechanism (4) comprises a mounting lower plate (401) mounted on the surface of the mounting seat (1); a connecting frame (402) is provided on the surface of the mounting lower plate (401); an mounting upper plate (403) is mounted on the top of the connecting frame (402); electric cylinders (404) are mounted on the surface of the mounting lower plate (401) and on both sides of the connecting frame (402); and the top of the electric cylinder (404) is fixedly connected to the bottom of the mounting upper plate (403).

6. A limiting device for a marine crane according to claim 5, characterized in that: The surfaces of the inner sides of the lower mounting plate (401) and the upper mounting plate (403) are both provided with movable grooves, and the upper and lower ends of the connecting frame (402) are respectively slidably connected to the surfaces of the movable grooves on both sides.

7. The limiting device for a marine crane according to claim 1, characterized in that: The connecting mechanism (7) comprises a connecting block (701) mounted on the surface of the second blocking plate (6) on one side and an inserting plate (704) mounted on the surface of the second blocking plate (6) on the other side, a guiding block (702) being mounted on the surface of the connecting block (701), and an inserting block (703) adapted to the inserting plate (704) being arranged on the surface of the guiding block (702).

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