A dismounting shaft device for a marine floating crane hook

Abstract

The utility model relates to sea work floating crane dismantling and assembling axle technical field discloses a kind of dismantling and assembling axle devices for sea work floating crane hook, including support bracket, the output shaft of motor is fixed with bidirectional screw rod, the screw block one is threadedly sleeved on the bidirectional screw rod, the other end of the miniature hydraulic rod is hingedly equipped with reinforcing block, the side of limit seat one is equipped with limit seat two, the inner wall of limit seat two is fixed with positioning plate, the utility model is adjusted to the position distance between two groups of positioning plates by bidirectional screw rod, effectively expand the scope of application, by setting multiple reinforcing blocks from multiple directions to provide auxiliary positioning, under the cooperation of miniature hydraulic rod, the angle and position of reinforcing block can be further flexibly adjusted, so that reinforcing block can better adhere to shaft main body, both guarantee the limiting effect, and can effectively protect shaft body surface from being damaged, conducive to enhancing the safety of shaft body disassembly and moving process, and improve disassembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of offshore floating crane disassembly and assembly shaft technology, and in particular to a disassembly and assembly shaft device for offshore floating crane hooks. Background Technology

[0002] Offshore floating cranes are floating cranes specifically designed for offshore engineering operations. Also known as crane ships or floating cranes, they are special vessels capable of moving freely on water and performing heavy lifting operations. The hook is the core component that directly connects the wire rope to the cargo being lifted and bears the lifting load.

[0003] An existing auxiliary device for disassembling and assembling heavy-duty shackle pins at sea (Announcement No.: CN219311160U) prevents radial rolling displacement of the pin, facilitates axial alignment of the pin, reduces pin friction, and makes disassembly and assembly easier. It can also be adapted to sites of different heights by adjusting the height of the bracket. However, the device only uses a limiting seat to limit the shaft, which is difficult to meet and adapt to different shafts. During the disassembly, assembly, and movement of the shaft, it is easy for the shaft to shift, loosen, or even fall off, which not only poses a safety hazard but also significantly reduces the efficiency of shaft disassembly and assembly operations. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a disassembly and assembly shaft device for offshore floating crane hooks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A disassembly and assembly shaft device for a floating crane hook in offshore engineering includes a support bracket, on which a roller is movably mounted. A rectangular frame is fixedly installed on the side wall of the roller, and a motor is fixedly installed inside the rectangular frame. A bidirectional lead screw is fixedly mounted on the output shaft of the motor. A screw block is threaded onto the bidirectional lead screw. A limiting seat is fixedly mounted on the upper end of the screw block. A miniature hydraulic rod is hinged to the limiting seat. A reinforcing block is hinged to the other end of the miniature hydraulic rod. A second limiting seat is provided on one side of the first limiting seat. A positioning plate is fixedly mounted on the inner wall of the second limiting seat. An elastic pad is mounted on the positioning plate via Velcro.

[0007] As a further embodiment of this utility model, a workbench one is fixedly installed at one end of the support bracket, and a workbench two is fixedly installed at the other end of the support bracket away from the workbench one.

[0008] As a further embodiment of this utility model, a guide roller is installed at one end of the roller by fasteners, the guide rollers are symmetrically distributed on the roller, and a protective side plate is fixedly installed on one side of the support bracket.

[0009] As a further embodiment of this utility model, a slide rail is fixedly provided at the upper end of the support bracket, the guide roller is slidably connected to the slide rail, and the protective side plate and the slide rail are symmetrically distributed on the support bracket.

[0010] As a further embodiment of this utility model, a screw block is fixedly installed at the bottom end of the limiting seat two, and the screw block two is threadedly connected to the bidirectional lead screw.

[0011] As a further embodiment of this utility model, the reinforcing blocks are provided in multiple sets on the limiting seat, and the rollers are symmetrically distributed on the support bracket.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When assembling and disassembling the shaft of a floating crane hook, a two-way screw rod, positioning plates, elastic pads, and a second limiting seat are used. The two-way screw rod allows for appropriate adjustment of the distance between the two sets of positioning plates, facilitating flexible positioning of different shafts and improving the convenience of shaft assembly, disassembly, and movement. This effectively expands the scope of application. After the two sets of positioning plates initially limit the shaft on both sides, multiple sets of reinforcing blocks provide auxiliary positioning from multiple directions. With the assistance of micro hydraulic rods, the angle and position of the reinforcing blocks can be further flexibly adjusted, allowing them to better fit the shaft body and apply a uniform force to the shaft. This ensures both the limiting effect and effectively protects the shaft surface from damage, enhancing the safety of shaft assembly, disassembly, and movement, and improving assembly efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a disassembly and assembly shaft device for a floating crane hook proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a disassembly and assembly shaft device for a floating crane hook proposed in this utility model.

[0016] Figure 3 This is an enlarged structural diagram of point A of the disassembly and assembly shaft device for the hook of an offshore floating crane proposed in this utility model;

[0017] Figure 4 This is an enlarged structural diagram of section B of a disassembly and assembly shaft device for a floating crane hook proposed in this utility model.

[0018] Figure 5 This is a schematic diagram of the roller disassembly structure of a disassembly and assembly shaft device for a floating crane hook proposed in this utility model;

[0019] In the diagram: 1. Support bracket; 101. Roller; 102. Protective side plate; 103. Slide rail; 104. Guide roller; 105. Limit seat one; 106. Miniature hydraulic rod; 2. Workbench one; 201. Rectangular frame; 202. Two-way lead screw; 203. Reinforcing block; 3. Workbench two; 301. Elastic pad; 302. Positioning plate; 4. Limit seat two; 5. Screw block one; 6. Screw block two; 7. Motor. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figures 1-5 A disassembly and assembly shaft device for a floating crane hook in marine engineering includes a support bracket 1, a roller 101 movably mounted on the support bracket 1, a rectangular frame 201 fixedly mounted on the side wall of the roller 101, a motor 7 fixedly mounted inside the rectangular frame 201, a bidirectional lead screw 202 fixedly mounted on the output shaft of the motor 7, a screw block 5 threaded onto the bidirectional lead screw 202, a limit seat 105 fixedly mounted on the upper end of the screw block 102, a miniature hydraulic rod 106 hingedly mounted on the limit seat 105, a reinforcing block 203 hingedly mounted on the other end of the miniature hydraulic rod 106, a limit seat 203 on one side of the limit seat 105, a positioning plate 302 fixedly mounted on the inner wall of the limit seat 205, and an elastic pad 301 mounted on the positioning plate 302 via Velcro.

[0024] In use, the motor 7 drives the bidirectional lead screw 202 to rotate via the output shaft. The positive and negative threads on the bidirectional lead screw 202 drive the screw block 5 and screw block 6 to move relative to each other. At the same time, the two sets of screw blocks drive the limit seat 105 and limit seat 24 to move and adjust. According to the specifications of the shaft, after the limit seat 105 and limit seat 24 are moved to the appropriate position, the bottom end of the shaft contacts the roller 101. Then, the two sets of positioning plates 302 provide the main limiting function for both sides of the shaft. Then, multiple sets of micro hydraulic rods 106 extend and retract to push the reinforcing blocks 203 to assist in clamping the shaft from multiple directions, so that the force on the reinforcing blocks 203 is evenly transmitted to the shaft, so that the reinforcing blocks 203 can better fit the shaft body and improve the accuracy of limiting and positioning.

[0025] In this embodiment, a workbench 1 is fixedly installed at one end of the support bracket 1, and a workbench 2 is fixedly installed at the other end of the support bracket 1 away from the workbench 2.

[0026] In use, both the first limiting seat 105 and the second limiting seat 4 are equipped with a positioning plate 302 and an elastic pad 301. The positioning plate 302 provides the main lateral limiting force, while the elastic pad 301 makes direct contact with the shaft. The elastic pad 301 is made of natural rubber, which applies a uniform force to the shaft and avoids wear on the shaft.

[0027] In this embodiment, a guide roller 104 is installed at one end of the roller 101 by fasteners. The guide rollers 104 are symmetrically distributed on the roller 101. A protective side plate 102 is fixedly installed on one side of the support bracket 1.

[0028] In use, a miniature hydraulic rod 106 is hinged to the limit seat 105. Multiple sets of miniature hydraulic rods 106 extend and retract to push each set of reinforcing blocks 203 to provide auxiliary positioning from multiple directions. The angle and position of the reinforcing blocks 203 can be flexibly adjusted, which significantly enhances the fixing effect on the shaft and effectively prevents the shaft from shifting or shaking during operation.

[0029] In this embodiment, a slide rail 103 is fixedly provided on the upper end of the support bracket 1, and a guide roller 104 is slidably connected to the slide rail 103. The protective side plate 102 and the slide rail 103 are symmetrically distributed on the support bracket 1.

[0030] In use, protective side plates 102 and slide rails 103 are provided on both sides of the support bracket 1. The protective side plates 102 are used to protect the guide rollers 104 during their movement, prevent the guide rollers 104 from shifting and slipping, and ensure the stability of the shaft during movement.

[0031] In this embodiment, a screw block 6 is fixedly installed at the bottom end of the limiting seat 4, and the screw block 6 is threadedly connected to the bidirectional lead screw 202.

[0032] In use, the guide roller 104 is made of rubber. Through the cooperation between the guide roller 104 and the slide rail 103, it provides guidance for the disassembly and reassembly of the shaft.

[0033] In this embodiment, multiple sets of reinforcing blocks 203 are provided on the limiting seat 105, and rollers 101 are symmetrically distributed on the support bracket 1.

[0034] In use, the worktable 12 and worktable 23 are connected to the two ends of the support bracket 1 respectively. The two sets of guide rollers 104 can be pushed from the worktable 12 to accurately slide into the corresponding slide rails 103, and then moved out through the position of the worktable 23 to prevent the roller 101 from slipping off the support bracket 1 and improve safety.

[0035] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When the hook of the offshore floating crane needs to be disassembled or reassembled, the support bracket 1 is placed below the shaft, and then the motor 7 is started. The motor 7 drives the bidirectional lead screw 202 to rotate through the output shaft. Using the positive and negative threads on the bidirectional lead screw 202, the two sets of screw blocks are driven to move relative to each other. At the same time, the first limit seat 105 and the second limit seat 4 are moved and adjusted, so that the bottom end of the shaft comes into contact with the roller 101, and then the two sets of positioning plates 302 act as the shaft... The two sides of the shaft provide the main limiting function. Then, multiple sets of miniature hydraulic rods 106 extend and retract to push the reinforcing blocks 203 to assist in clamping the shaft from multiple directions, and evenly transmit the force on the reinforcing blocks 203 to the shaft, avoiding damage or deformation of the shaft due to excessive local force. This greatly improves the stability and reliability of the shaft during disassembly and reassembly. Finally, with the cooperation of the slide rail 103 and the guide roller 104, the roller 101 drives the shaft to move stably through the external drive device, which is conducive to the orderly progress of disassembly and reassembly.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A disassembly and assembly shaft device for a floating crane hook in offshore engineering, comprising a support bracket (1), characterized in that: A roller (101) is movably mounted on the support bracket (1). A rectangular frame (201) is fixedly installed on the side wall of the roller (101). A motor (7) is fixedly installed inside the rectangular frame (201). A bidirectional lead screw (202) is fixedly mounted on the output shaft of the motor (7). A screw block (5) is threaded onto the bidirectional lead screw (202). A limiting seat (105) is fixedly mounted on the upper end of the screw block (5). A miniature hydraulic rod (106) is hinged on the limiting seat (105). A reinforcing block (203) is hinged to the other end of the miniature hydraulic rod (106). A limiting seat (4) is provided on one side of the limiting seat (105). A positioning plate (302) is fixedly mounted on the inner wall of the limiting seat (4). An elastic pad (301) is mounted on the positioning plate (302) by Velcro.

2. The disassembly and assembly shaft device for a floating crane hook according to claim 1, characterized in that, One end of the support bracket (1) is fixedly installed with a workbench one (2), and the other end of the support bracket (1) away from the workbench one (2) is fixedly installed with a workbench two (3).

3. The disassembly and assembly shaft device for a floating crane hook according to claim 1, characterized in that, One end of the roller (101) is fitted with a guide roller (104) by fasteners. The guide rollers (104) are symmetrically distributed on the roller (101). A protective side plate (102) is fixedly installed on one side of the support bracket (1).

4. The disassembly and assembly shaft device for a floating crane hook according to claim 3, characterized in that, The upper end of the support bracket (1) is fixedly provided with a slide rail (103), the guide roller (104) is slidably connected to the slide rail (103), and the protective side plate (102) and the slide rail (103) are symmetrically distributed on the support bracket (1).

5. A disassembly and assembly shaft device for a floating crane hook according to claim 1, characterized in that, The bottom end of the limiting seat 2 (4) is fixedly installed with screw block 2 (6), and screw block 2 (6) is threadedly connected to the bidirectional lead screw (202).

6. The disassembly and assembly shaft device for a floating crane hook according to claim 1, characterized in that, The reinforcing blocks (203) are provided in multiple sets on the limiting seat (105), and the rollers (101) are symmetrically distributed on the support bracket (1).

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