Maritime work floating crane split pivotal bearing installation device

Abstract

The utility model relates to the technical field of maritime work floating crane bearing installation, and discloses a maritime work floating crane split pivotal bearing installation device which comprises a fixing frame and a lifting plate, a supporting plate is fixedly arranged on the outer side wall of a fixing box, an arc-shaped plate is fixedly installed on the supporting plate, an electromagnet is embedded in the inner wall of the arc-shaped plate, and the electromagnet is fixedly installed on the fixing box. The bottom of the shaft main body is supported by pulling the two sets of supporting plates, meanwhile, the two sets of arc-shaped plates are attached to the inner walls of the two sides of the shaft main body respectively, and therefore the bottom of the shaft main body can be supported by pulling the two sets of supporting plates, the two sets of arc-shaped plates are attached to the inner walls of the two sides of the shaft main body respectively; the magnetic force generated by the electromagnet attracts the magnetic shaft body, then auxiliary fixing is rapidly completed, under the cooperation of the positioning plate and the elastic cushion, the shaft body is further clamped and fixed, the accuracy of the mounting position of the shaft body is ensured, the positioning plate and the elastic cushion can be conveniently disassembled, assembled and replaced, and practicability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of marine floating crane bearing installation technology, and in particular to a marine floating crane split slewing bearing installation device. Background Technology

[0002] Offshore floating cranes refer to floating cranes specifically designed for offshore engineering operations. Also known as crane vessels or floating cranes, they are special vessels capable of moving freely on water and performing heavy lifting operations. Split slewing bearings are slewing bearings that can be separated into multiple parts, typically composed of inner and outer rings and rolling elements. The design of this type of bearing allows its inner and outer rings to be separated, facilitating individual operation during installation, maintenance, and replacement, thereby improving flexibility and ease of maintenance.

[0003] An existing mounting assembly for slewing bearings (publication number: CN212240777U) facilitates the positioning of slewing bearings during installation and also simplifies the installation process, demonstrating good performance. However, it requires pulling two sets of sliding plates to position and support the slewing bearing. During the lifting and lowering operation of the hydraulic rod, the weight of the slewing bearing itself causes significant pressure on the sliding plates, leading to slippage and displacement. This affects the accuracy of the slewing bearing positioning and hinders the orderly progress of the bearing installation work. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a split slewing bearing installation device for marine floating cranes.

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

[0006] A split slewing bearing installation device for offshore floating cranes includes a fixed frame and a lifting plate. The lifting plate has a groove, within which a slider is movably mounted. A fixed box is fixedly mounted on the slider. A support plate is fixedly mounted on the outer wall of the fixed box. An arc-shaped plate is fixedly mounted on the support plate. An electromagnet is embedded in the inner wall of the arc-shaped plate. A storage battery is installed inside the fixed box, and the electromagnet and the storage battery are electrically connected. A hydraulic cylinder is fixedly mounted inside the fixed frame. The output shaft of the hydraulic cylinder is fixedly connected to the bottom of the lifting plate. The lifting plate is movably connected to the fixed frame. A cylinder is mounted on one outer wall of the fixed frame via fasteners. A vertical plate is fixedly mounted on the output shaft of the cylinder, and a positioning plate is mounted on the vertical plate.

[0007] As a further embodiment of this utility model, a limiting groove is provided on the inner wall of the fixing frame, a guide rod is movably provided in the limiting groove, and the hydraulic cylinders are evenly distributed on the fixing frame.

[0008] As a further embodiment of this utility model, the guide rod is fixedly connected to the lifting plate, and the limiting groove and the guide rod are distributed at equal intervals on the fixed frame.

[0009] As a further embodiment of this utility model, a scale is embedded in the lifting plate, a through groove is provided on the vertical plate, a screw is installed in the through groove, and the vertical plates are symmetrically distributed on the fixed frame.

[0010] As a further embodiment of this utility model, one end of the screw is fixedly connected to a positioning plate, and an elastic pad is fixedly provided on the positioning plate. The positioning plates are symmetrically distributed on the vertical plate.

[0011] As a further embodiment of this utility model, a nut is threaded onto the end of the screw away from the positioning plate, a control button is fixedly provided on the upper end of the fixing box, and the support plates are symmetrically distributed on the lifting plate.

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

[0013] During the installation of the split slewing bearing for offshore floating cranes, an arc-shaped plate, a fixing box, a scale, an electromagnet, and support plates are used. By pulling two sets of support plates, the bottom of the shaft body is supported and lifted. At the same time, the two sets of arc-shaped plates are respectively attached to the inner walls on both sides of the shaft body. By operating the control button, the magnetic force generated by the electromagnet attracts the magnetic shaft body, thereby quickly completing the auxiliary fixation and avoiding the impact of external forces on the stability of the shaft body. This facilitates the installation of shaft bodies of different specifications. By setting up vertical plates, nuts, screws, through grooves, elastic pads, and positioning plates, the shaft body is further clamped and fixed with the cooperation of the positioning plate and elastic pads. This ensures the accuracy of the shaft body installation position and avoids excessive clamping that could cause wear on the surface of the shaft body. At the same time, with the cooperation of nuts, screws, and through grooves, the positioning plate and elastic pads can be easily disassembled and replaced, enhancing practicality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a split slewing bearing installation device for a marine floating crane proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of a split slewing bearing installation device for an offshore floating crane proposed in this utility model;

[0016] Figure 3This is an enlarged structural diagram of point A of the split slewing bearing installation device for a marine floating crane proposed in this utility model;

[0017] Figure 4 This is an enlarged structural diagram of section B of the split slewing bearing installation device for a marine floating crane proposed in this utility model;

[0018] In the diagram: 1. Fixing frame; 101. Limiting groove; 102. Guide rod; 103. Cylinder; 104. Vertical plate; 105. Arc plate; 106. Fixing box; 2. Lifting plate; 201. Hydraulic cylinder; 202. Scale; 203. Slide groove; 3. Storage battery; 301. Electromagnet; 302. Support plate; 303. Slider; 4. Control button; 5. Nut; 6. Screw; 7. Through groove; 8. Elastic pad; 801. Positioning plate. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Reference Figures 1-4A split slewing bearing installation device for a marine floating crane includes a fixed frame 1 and a lifting plate 2. The lifting plate 2 has a sliding groove 203, and a slider 303 is movably installed in the sliding groove 203. A fixed box 106 is fixed on the slider 303. A support plate 302 is fixed on the outer wall of the fixed box 106. An arc plate 105 is fixedly installed on the support plate 302. An electromagnet 301 is embedded in the inner wall of the arc plate 105. A storage battery 3 is installed inside the fixed box 106. The electromagnet 301 and the storage battery 3 are electrically connected. A hydraulic cylinder 201 is fixedly installed inside the fixed frame 1. The output shaft of the hydraulic cylinder 201 is fixedly connected to the bottom of the lifting plate 2. The lifting plate 2 is movably connected to the fixed frame 1. A cylinder 103 is installed on one side of the outer wall of the fixed frame 1 by fasteners. A vertical plate 104 is fixedly installed on the output shaft of the cylinder 103. A positioning plate 801 is installed on the vertical plate 104.

[0023] In use, the lifting plate 2 supports the shaft body. By pulling the two sets of support plates 302, the bottom of the shaft body is lifted. At the same time, the two sets of arc plates 105 are respectively attached to the inner walls on both sides of the shaft body. By operating the control button 4, the magnetic force generated by the electromagnet 301 attracts the shaft body. The auxiliary arc plates 105 and support plates 302 help to position the shaft body, avoiding the stability of the shaft body affected by external forces. This improves the convenience of installing shaft bodies of different specifications. With the cooperation of the positioning plate 801 and the elastic pad 8, the shaft body is further clamped and fixed to ensure the accuracy of the shaft body installation position. At the same time, the positioning plate 801 and the elastic pad 8 can be easily disassembled and assembled, greatly reducing the operation time and manpower input.

[0024] In this embodiment, a limiting groove 101 is provided on the inner wall of the fixed frame 1, and a guide rod 102 is movably provided in the limiting groove 101. The hydraulic cylinders 201 are distributed at equal intervals on the fixed frame 1.

[0025] In use, the limiting groove 101 and the guide rod 102 provide guidance for the lifting plate 2, enabling it to stably support the shaft body.

[0026] In this embodiment, the guide rod 102 is fixedly connected to the lifting plate 2, and the limiting groove 101 and the guide rod 102 are evenly distributed on the fixed frame 1.

[0027] In use, by loosening and removing nut 5, screw 6 can be pulled out from through groove 7, which can drive elastic pad 8 and positioning plate 801 to be disassembled and replaced. With the cooperation of screw 6 and through groove 7, the position of positioning plate 801 can be adjusted appropriately, thereby clamping and positioning shaft bodies of different heights.

[0028] In this embodiment, a scale 202 is embedded in the lifting plate 2, and a through groove 7 is opened on the vertical plate 104. A screw 6 is installed in the through groove 7, and the vertical plates 104 are symmetrically distributed on the fixing frame 1.

[0029] In use, the scale on the ruler 202 can provide precise position indication for the sliding of the positioning plate 801. The operator can accurately know the position of the positioning plate 801 at different times according to the scale, and thus accurately position the shaft body.

[0030] In this embodiment, one end of the screw 6 is fixedly connected to the positioning plate 801, and the positioning plate 801 is fixedly provided with an elastic pad 8. The positioning plate 801 is symmetrically distributed on the vertical plate 104.

[0031] When in use, the elastic pad 8 is made of silicone, which ensures that the shaft body is stably clamped and avoids damage to the surface of the shaft body, thus helping to achieve a stable clamping effect.

[0032] In this embodiment, a nut 5 is threaded onto the end of the screw 6 away from the positioning plate 801, a control button 4 is fixedly provided on the upper end of the fixing box 106, and the support plate 302 is symmetrically distributed on the lifting plate 2.

[0033] In use, the magnetic force of the electromagnet 301 can be controlled by operating the control button 4, and the storage battery 3 is used to provide a reserve power for the magnetic force of the electromagnet 301.

[0034] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When the split slewing bearing of the offshore floating crane needs to be installed, by synchronously starting four sets of hydraulic cylinders 201, with the cooperation of the limit groove 101 and the guide rod 102, the lifting plate 2 is stably raised to support the shaft body. Then, the two sets of sliders 303 are pushed to slide along the corresponding slide grooves 203 and approach the inner walls of both sides of the shaft body, so that the two sets of arc plates 105 are respectively in contact with the inner walls of both sides of the shaft body. At the same time, the two sets of support plates 302 lift the bottom of the shaft body. Then, by operating the control button 4, the electromagnet 301 is energized. The source releases magnetic force, causing the arc plate 105 to adhere tightly to the inner wall of the magnetic shaft, preventing loosening. Then, multiple sets of hydraulic cylinders 201 drive the shaft body positioned on the lifting plate 2 to rise and fall, adjusting the shaft body to a suitable height. By activating the cylinders 103 on both sides, the two sets of vertical plates 104 are brought close to the outer walls of the two sides of the shaft body, pushing the screws 6 to insert into the corresponding through slots 7 in sequence. Then, each set of nuts 5 is tightened, and multiple sets of positioning plates 801 are used to clamp and fix the shaft body, and each set of elastic pads 8 is tightly attached to the surface of the shaft body, improving the stability of the shaft body installation.

[0035] 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 split slewing bearing mounting device for a marine floating crane, comprising a stationary frame (1) and a lifting plate (2), characterized in that: The lifting plate (2) is provided with a sliding groove (203), and a slider (303) is movably disposed in the sliding groove (203). A fixing box (106) is fixedly disposed on the slider (303). A support plate (302) is fixedly disposed on the outer wall of the fixing box (106). An arc plate (105) is fixedly installed on the support plate (302). An electromagnet (301) is embedded in the inner wall of the arc plate (105). A storage battery (3) is installed inside the fixing box (106). The electromagnet (301) 01) It is electrically connected to the storage battery (3). A hydraulic cylinder (201) is fixedly installed inside the fixed frame (1). The output shaft of the hydraulic cylinder (201) is fixedly connected to the bottom of the lifting plate (2). The lifting plate (2) is movably connected to the fixed frame (1). A cylinder (103) is installed on one side of the outer wall of the fixed frame (1) by fasteners. A vertical plate (104) is fixedly provided on the output shaft of the cylinder (103). A positioning plate (801) is installed on the vertical plate (104).

2. A split slewing ring mounting for a marine floating crane according to claim 1, wherein, The inner wall of the fixed frame (1) is provided with a limiting groove (101), and a guide rod (102) is movably provided in the limiting groove (101). The hydraulic cylinders (201) are distributed at equal intervals on the fixed frame (1).

3. A split slewing ring mounting for a marine floating crane according to claim 2, wherein, The guide rod (102) is fixedly connected to the lifting plate (2), and the limiting groove (101) and the guide rod (102) are evenly distributed on the fixed frame (1).

4. A split slewing ring mounting for a marine floating crane according to claim 1, wherein, A scale (202) is embedded in the lifting plate (2), a through groove (7) is provided on the vertical plate (104), a screw (6) is installed in the through groove (7), and the vertical plates (104) are symmetrically distributed on the fixed frame (1).

5. A split slewing ring mounting for a marine floating crane according to claim 4, wherein, One end of the screw (6) is fixedly connected to the positioning plate (801), and the positioning plate (801) is fixedly provided with an elastic pad (8). The positioning plate (801) is symmetrically distributed on the vertical plate (104).

6. A split slewing ring mounting for a marine floating crane according to claim 4, wherein, The screw (6) is threaded with a nut (5) at the end away from the positioning plate (801), and a control button (4) is fixedly provided at the upper end of the fixing box (106). The support plate (302) is symmetrically distributed on the lifting plate (2).

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