Full-rotation crane for marine fishery breeding work ship

Abstract

The utility model particularly relates to a full-circle slewing crane for a marine fishery breeding work ship, which comprises a stand column, a suspension arm is rotatably mounted on the upper side of the front end face of the stand column, a cavity is formed in the rear end face of the suspension arm, a first rotating seat and a second rotating seat are respectively and fixedly mounted on the front end face of the stand column and the inner side of the cavity, and a hydraulic push rod is arranged in the cavity. A first rotating block and a second rotating block which are rotationally matched with the first rotating seat and the second rotating seat are fixedly installed on the two end faces of the hydraulic push rod correspondingly, a take-up roller is rotationally installed in the stand column, a steel wire rope is fixedly installed on the periphery of the take-up roller, and a worm wheel is fixedly installed on the lower end face of the take-up roller; a worm matched with the worm gear in a threaded mode is rotationally installed in the stand column, a first motor box is fixedly installed in the stand column, and an output shaft at the outer end of the first motor box is rotationally connected with the worm through a transmission belt, the whole device can be contracted and unfolded, and in the fishing boat environment, the space occupied by the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of marine fishery aquaculture, in particular to a full slewing crane for a marine fishery aquaculture workboat. Background Technique

[0002] When carrying out marine fishery aquaculture, a full slewing crane needs to be installed on the hull to hoist and transfer various aquaculture equipment, feed, fry and other materials. It can maintain a stable working state in sea conditions with relatively large wind and waves, ensuring the safety and high efficiency of aquaculture operations. At the same time, its high lifting capacity and flexible working mode also greatly improve the working efficiency of the aquaculture workboat. However, most of the existing full slewing cranes for fishing boats adopt a frame structure. Although this can adjust its shape, it cannot be retracted. When the existing fishing boats are operating on the sea surface, the upper space is limited. This makes it difficult to avoid contact between this relatively large-frame structure full slewing crane and the staff, which will undoubtedly cause harm to the crane and the staff. Moreover, the crane is installed at the edge of the hull, and there are also relatively large safety hazards when the staff touches it. For this reason, we have proposed a full slewing crane for a marine fishery aquaculture workboat. Content of the Utility Model

[0003] The purpose of the utility model is to provide a full slewing crane for a marine fishery aquaculture workboat to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A full slewing crane for a marine fishery aquaculture workboat, including a column. A boom is rotatably installed on the upper side of the front end face of the column. A cavity is opened on the rear end face of the boom. A first rotating seat and a second rotating seat are respectively fixedly installed on the front end face of the column and the inner side of the cavity. A hydraulic push rod is arranged in the cavity. First and second rotating blocks that are rotatably matched with the first rotating seat and the second rotating seat are respectively fixedly installed on both end faces of the hydraulic push rod. A wire winding roller is rotatably installed in the column. A steel wire rope is fixedly installed around the wire winding roller. A worm gear is fixedly installed on the lower end face of the wire winding roller. A worm that is threadedly matched with the worm gear is rotatably installed in the column. A first motor box is fixedly installed in the column. The output shaft at the outer end of the first motor box is rotatably connected to the worm through a transmission belt.

[0005] Preferably, a wire winding cavity is opened in the column. The wire winding roller is rotatably installed in the wire winding cavity, and the steel wire rope is inserted into the upper end of the wire winding cavity. Guide wheels are rotatably installed on both sides of the boom. Guide grooves that match the diameter of the steel wire rope are opened on the peripheries of the two guide wheels.

[0006] Preferably, the rear end face of the wire winding cavity communicates with the outside. A sealing plate is inserted and installed in the wire winding cavity. A positioning sliding cavity is formed in the sealing plate. Positioning insertion holes matching the positioning sliding cavity are formed in the upper and lower end faces of the wire winding cavity. Two positioning pins respectively inserted into the positioning insertion holes on both sides are symmetrically and slidably installed in the positioning sliding cavity.

[0007] Preferably, a connecting seat is fixedly installed in the positioning sliding cavity. Limiting insertion rods matching the length of the positioning sliding cavity are fixedly installed at both ends of the connecting seat. The two positioning pins are respectively inserted into the limiting insertion rods on both sides. A spring sleeved around the limiting insertion rod is fixedly installed between the connecting seat and the positioning pin.

[0008] Preferably, a rotary table rotatably connected thereto is provided at the lower end face of the column. A second motor box is fixedly installed on the upper end face of the rotary table. The output shaft at the upper end of the second motor box is fixedly connected to the middle of the lower end of the column. A plurality of positioning connection rings are inserted and installed on the periphery of the rotary table.

[0009] Preferably, a plurality of limiting insertion cavities are formed on the periphery of the rotary table. Movable insertion rods respectively inserted and matched with the limiting insertion cavities are fixedly installed on the inner sides of the positioning connection rings. An annular rotating groove communicating with the upper end faces of the limiting insertion cavities is formed on the periphery of the rotary table. A rotating disk is rotatably installed in the annular rotating groove. Slide shafts are fixedly installed on the respective movable insertion rods. A plurality of arc-shaped sliding grooves respectively slidably matched with the slide shafts are formed on the lower end face of the rotating disk, and the arc-shaped sliding grooves are inclined.

[0010] Preferably, an annular positioning tooth cavity is formed on the periphery of the rotary table. The annular positioning tooth cavity is located above the annular rotating groove. A positioning tooth groove matching the annular positioning tooth cavity is formed on the periphery of the rotating disk. A positioning tooth ring inserted into the positioning tooth groove is slidably installed in the annular positioning tooth cavity.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] For the full slewing crane for marine fishery breeding workboats, a cavity is provided, and the hydraulic push rod is arranged in the cavity. Cooperating with the rotating blocks and rotating seats on both sides, through the telescopic performance of the hydraulic push rod, the boom can be driven to rotate, achieving the effect of expanding or contracting the device. When not in use, the space occupied by the device can be significantly reduced, effectively avoiding its contact with the staff, achieving the effect of protecting the staff and reducing potential safety hazards.

[0013] This full slewing crane for marine fishery breeding workboats can drive the wire rope reel to rotate through the output shaft rotating in the first motor box, achieving the effect of winding or releasing the wire rope. And through the self-locking effect between the worm and the worm gear, the rotation of the wire rope reel can be restricted. When the load of the wire rope is too heavy, the release of the wire rope can be restricted, achieving the effect of protecting the wire rope reel and the first motor box.

[0014] This full slewing crane for marine fishery breeding workboats is provided with a positioning connection ring. Through its cooperation with the external bolt, the slewing platform can be fixed at the corresponding position of the hull. And according to the size of the installation position, through the sliding cooperation between the arc-shaped chute and the sliding shaft, the positions of each positioning connection ring can be adjusted on the periphery of the slewing platform, improving the installation effect of the device. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall external structure when the boom of the present utility model is extended;

[0016] Figure 2 It is a schematic diagram of the overall internal structure when the boom of the present utility model is retracted;

[0017] Figure 3 It is a schematic diagram of the internal structure of the boom of the present utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the column of the present utility model;

[0019] Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at A in;

[0020] Figure 6 It is a schematic diagram of the internal split structure of the slewing platform of the present utility model.

[0021] In the figure:

[0022] 1. Column; 11. Boom; 12. Cavity; 13. Hydraulic push rod; 14. First rotating seat; 15. Second rotating seat; 16. First rotating block; 17. Second rotating block;

[0023] 2. Wire rope reel; 21. Wire rope; 22. Guide wheel; 23. Guide groove; 24. First motor box; 25. Worm gear; 26. Worm;

[0024] 3. Wire rope winding cavity; 31. Sealing plate; 32. Positioning sliding cavity; 33. Positioning jack; 34. Positioning bolt; 35. Connecting seat; 36. Limit insertion rod; 37. Spring;

[0025] 4. Rotary table; 41. Second motor box; 42. Limit insertion cavity; 43. Movable insertion rod; 431. Slide shaft; 44. Positioning connection ring; 45. Ring-shaped rotating groove; 46. Rotating disk; 461. Arc-shaped chute; 47. Ring-shaped positioning tooth cavity; 48. Positioning tooth groove; 49. Positioning tooth ring. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0027] Please refer to Figures 1-6 , the present invention provides a technical solution: a fully rotating crane for a marine fishery breeding workboat, including a column 1. A boom 11 is rotatably installed on the upper side of the front end face of the column 1. A cavity 12 is opened on the rear end face of the boom 11. A first rotating seat 14 and a second rotating seat 15 are respectively fixedly installed on the front end face of the column 1 and the inner side of the cavity 12. A hydraulic push rod 13 is arranged in the cavity 12. First rotating blocks 16 and second rotating blocks 17 that are rotatably matched with the first rotating seat 14 and the second rotating seat 15 are respectively fixedly installed on both end faces of the hydraulic push rod 13. A wire reel 2 is rotatably installed in the column 1. A steel wire rope 21 is fixedly installed on the periphery of the wire reel 2. A worm gear 25 is fixedly installed on the lower end face of the wire reel 2. A worm 26 that is threadedly matched with the worm gear 25 is rotatably installed in the column 1. A first motor box 24 is fixedly installed in the column 1. The output shaft of the outer end of the first motor box 24 is rotatably connected to the worm 26 through a transmission belt.

[0028] Working principle: When in use, start the hydraulic push rod 13. Through the rotational cooperation between the first rotating block 16 and the first rotating seat 14 and between the second rotating block 17 and the second rotating seat 15, the telescopic hydraulic push rod 13 can drive the boom 11 to rotate on the upper side of the front end of the column 1. When the boom 11 rotates upward, the device can be unfolded, and when the boom 11 rotates downward, the device can be contracted. A cavity 12 is arranged in the boom 11. When the device contracts, the hydraulic push rod 13 can move into the cavity 12, thereby significantly reducing the space occupied by the device;

[0029] When adjusting the wire rope 21, start the motor inside the first motor box 24. Through its upper output shaft and the transmission belt, the worm 26 can be driven to rotate. Then, through the worm 26 and the worm gear 25, the wire winding roller 2 can be driven to rotate accordingly, achieving the effect of winding or releasing the wire rope 21 on its periphery. And through the thread fit between the worm 26 and the worm gear 25, when the front end of the wire rope 21 is overloaded, the rotation of the wire winding roller 2 can be restricted, so that it cannot continuously release due to the overload of the wire rope 21, achieving the effect of protecting the wire winding roller 2 and the wire rope 21. Embodiment 2

[0030] A wire winding cavity 3 is opened in the column 1. The wire winding roller 2 is rotatably installed in the wire winding cavity 3, and the wire rope 21 is inserted into the upper end of the wire winding cavity 3. Guide wheels 22 are rotatably installed on both sides of the boom 11, and guide grooves 23 matching the diameter of the wire rope 21 are opened on the periphery of the two guide wheels 22.

[0031] By arranging the guide wheels 22 on both sides of the boom 11 and opening the guide grooves 23 on the periphery of the guide wheels 22, the movement of the wire rope 21 can be guided, and the contact between the wire rope 21 and the boom 11 can be avoided, so that the wear between the two can be avoided, achieving the effect of protecting the wire rope 21 and the boom 11. Embodiment 3

[0032] The rear end face of the wire winding cavity 3 is communicated with the outside. A sealing plate 31 is inserted and installed in the wire winding cavity 3. A positioning sliding cavity 32 is opened in the sealing plate 31. Positioning insertion holes 33 matching the positioning sliding cavity 32 are opened on the upper and lower end faces of the wire winding cavity 3. Two positioning pins 34 respectively inserted into the two positioning insertion holes 33 on both sides are symmetrically and slidably installed in the positioning sliding cavity 32. A connecting seat 35 is fixedly installed in the positioning sliding cavity 32. Limiting insertion rods 36 matching the length of the positioning sliding cavity 32 are fixedly installed at both ends of the connecting seat 35. The two positioning pins 34 are respectively inserted into the limiting insertion rods 36 on both sides, and a spring 37 sleeved on the periphery of the limiting insertion rod 36 is fixedly installed between the connecting seat 35 and the positioning pin 34.

[0033] By arranging the detachable sealing plate 31 at the rear side of the wire winding cavity 3, it is convenient to repair and maintain the wire winding roller 2 and the wire rope 21 inside the wire winding cavity 3;

[0034] When installing the sealing plate 31, by pressing the outer end plates of the two positioning pins 34, the positioning pins 34 are pressed towards each other into the positioning sliding cavity 32 to prevent the positioning pins 34 from protruding outside the outer end of the sealing plate 31, so that the sealing plate 31 can be installed into the wire receiving cavity 3. When the positioning sliding cavity 32 and the positioning jack 33 are aligned with each other, release the positioning pins 34. Under the action of the spring 37 restoring its deformation, the two positioning pins 34 can be driven to expand outwards and inserted into the positioning jack 33. Furthermore, through the plug-in cooperation between the positioning pins 34, the positioning sliding cavity 32 and the positioning jack 33, the sealing plate 31 can be positioned;

[0035] Among them, the limit insertion rod 36 is provided. It can limit the movement direction of the positioning pin 34 through the plug-in cooperation between it and the positioning pin 34. And the spring 37 is sleeved around the limit insertion rod 36, which can limit the telescopic movement direction of the spring 37 to prevent the spring 37 from being distorted during the telescopic movement, achieving the effect of protecting the spring 37. Embodiment 4

[0036] A rotary table 4 is rotatably connected to the lower end surface of the column 1. A second motor box 41 is fixedly installed on the upper end surface of the rotary table 4. The upper output shaft of the second motor box 41 is fixedly connected to the middle part of the lower end of the column 1. A plurality of positioning connection rings 44 are inserted and installed around the rotary table 4. A plurality of limit insertion cavities 42 are formed on the periphery of the rotary table 4. An active insertion rod 43 that is inserted and matched with each limit insertion cavity 42 is fixedly installed on the inner side of each positioning connection ring 44. An annular rotation groove 45 that communicates with the upper end surfaces of each limit insertion cavity 42 is formed on the periphery of the rotary table 4. A rotating disk 46 is rotatably installed in the annular rotation groove 45. A sliding shaft 431 is fixedly installed on each active insertion rod 43. A plurality of arc-shaped sliding grooves 461 that are slidably matched with each sliding shaft 431 are formed on the lower end surface of the rotating disk 46, and the arc-shaped sliding grooves 461 are inclined. An annular positioning tooth cavity 47 is formed on the periphery of the rotary table 4, and the annular positioning tooth cavity 47 is located above the annular rotation groove 45. A positioning tooth groove 48 that matches the annular positioning tooth cavity 47 is formed on the periphery of the rotating disk 46. A positioning tooth ring 49 that is inserted into the positioning tooth groove 48 is slidably installed in the annular positioning tooth cavity 47.

[0037] When installing the rotary table 4 on the hull, place the rotary table 4 in the corresponding position. Then, according to the space on the hull surface, the positions of the positioning connection rings 44 can be adjusted. Then, through external pins and other structures, the positioning connection rings 44 can be fixed to the hull, so that the device can be installed;

[0038] When adjusting the position of the positioning connection ring 44, in the annular positioning tooth cavity 47, the positioning tooth ring 49 is lifted upward so that the positioning tooth ring 49 is separated from the positioning tooth groove 48. Thus, the rotating disk 46 can be rotated in the annular rotating groove 45. Under the restriction of the movement directions of the respective positioning connection rings 44 by the insertion fit between each limiting insertion cavity 42 and the movable insertion rod 43, the rotating rotating disk 46 can drive each positioning connection ring 44 to contract inward or expand outward through the sliding fit between the inclined arc-shaped sliding groove 461 and the sliding shaft 431, so that each positioning connection ring 44 matches the space on the hull surface. Finally, the positioning tooth ring 49 is released, and the positioning tooth ring 49 naturally falls, so that the positioning tooth ring 49 is inserted into the positioning tooth groove 48, thereby positioning the rotating disk 46 and achieving the effect of positioning each positioning connection ring 44, thus completing the adjustment of the position of the positioning connection ring 44.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully revolving crane for marine fishery aquaculture vessels, comprising a column (1), characterized in that: A suspension arm (11) is rotatably mounted on the upper side of the front end surface of the column (1), a cavity (12) is provided on the rear end surface of the suspension arm (11), a first rotating seat (14) and a second rotating seat (15) are respectively fixedly mounted on the front end surface of the column (1) and the inner side of the cavity (12), a hydraulic push rod (13) is provided in the cavity (12), and a first rotating block (16) and a second rotating block (15) which are rotatably matched with the first rotating seat (14) and the second rotating seat (15) are respectively fixedly mounted on both end surfaces of the hydraulic push rod (13). A second rotating block (17), a wire take-up roller (2) is rotatably mounted in the column (1), a steel wire rope (21) is fixedly mounted on the periphery of the wire take-up roller (2), a worm wheel (25) is fixedly mounted on the lower end surface of the wire take-up roller (2), a worm (26) threadably engaged with the worm wheel (25) is rotatably mounted in the column (1), a first motor box (24) is fixedly mounted in the column (1), and an output shaft at the outer end of the first motor box (24) is rotatably connected to the worm wheel (26) via a transmission belt.

2. The full-slewing crane for marine fishery aquaculture vessels according to claim 1 is characterized by: A wire taking-up cavity (3) is provided in the column (1), the wire taking-up roller (2) is rotatably mounted in the wire taking-up cavity (3), and the steel wire rope (21) and the upper end of the wire taking-up cavity (3) are plugged into each other, guide wheels (22) are rotatably mounted on both sides of the boom (11), and guide grooves (23) matching the diameter of the steel wire rope (21) are provided on the periphery of the two guide wheels (22).

3. The full-slewing crane for marine fishery aquaculture vessels according to claim 2 is characterized by: The rear end surface of the wire-receiving cavity (3) is in communication with the outside, a sealing plate (31) is inserted and installed in the wire-receiving cavity (3), a positioning sliding cavity (32) is provided in the sealing plate (31), and positioning plug holes (33) matching the positioning sliding cavity (32) are provided on the upper and lower end surfaces of the wire-receiving cavity (3), and two positioning pins (34) are symmetrically slidably installed in the positioning sliding cavity (32) and are respectively plugged into the positioning plug holes (33) on both sides.

4. The full-slewing crane for marine fishery aquaculture vessels according to claim 3 is characterized by: A connecting seat (35) is fixedly installed in the positioning slide cavity (32), and limiting plug rods (36) matching the length of the positioning slide cavity (32) are fixedly installed at both ends of the connecting seat (35). The two positioning pins (34) are respectively plugged into the limiting plug rods (36) on both sides, and a spring (37) sleeved on the outer periphery of the limiting plug rod (36) is fixedly installed between the connecting seat (35) and the positioning pins (34).

5. The full-slewing crane for marine fishery aquaculture vessels according to claim 1 is characterized by: The lower end surface of the column (1) is provided with a turntable (4) rotatably connected thereto, the upper end surface of the turntable (4) is fixedly mounted with a second motor box (41), the upper end output shaft of the second motor box (41) is fixedly connected to the middle portion of the lower end of the column (1), and the outer periphery of the turntable (4) is plugged with a plurality of positioning connection rings (44).

6. The full-slewing crane for marine fishery aquaculture vessels according to claim 5, characterized in that: The outer periphery of the turntable (4) is provided with a plurality of limit cavities (42); the inner side of each of the positioning connection rings (44) is fixedly provided with a movable plug rod (43) plugged into and matched with each of the limit cavities (42); the outer periphery of the turntable (4) is provided with an annular rotating groove (45) which is mutually connected with the upper end surface of each of the limit cavities (42); a rotating disk (46) is rotatably installed in the annular rotating groove (45); each of the movable plug rods (43) is fixedly provided with a sliding shaft (431); the lower end surface of the rotating disk (46) is provided with a plurality of arc-shaped sliding grooves (461) which are respectively slidably matched with each of the sliding shafts (431); and the arc-shaped sliding grooves (461) are arranged obliquely.

7. The full-slewing crane for marine fishery aquaculture vessels according to claim 6 is characterized by: The outer periphery of the turntable (4) is provided with an annular positioning tooth cavity (47), the annular positioning tooth cavity (47) being arranged on the upper side of the annular rotating groove (45), the outer periphery of the rotating disk (46) is provided with a positioning tooth groove (48) matching the annular positioning tooth cavity (47), and a positioning tooth ring (49) plugged into the positioning tooth groove (48) is slidably installed in the annular positioning tooth cavity (47).

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