Cylinder structure for connecting rotary base and crane
By designing wide-body, narrow-body, and transition sections of the cylindrical structure, and combining them with a stable connection structure, the problem of easy corrosion of the connection structure of the offshore crane was solved, thereby improving the structural stability and safety in the marine environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-03-24
AI Technical Summary
The rotating base and crane connection structure of offshore cranes are susceptible to corrosion in the marine environment, which can lead to weld corrosion and affect the stability and safety of the overall structure.
A cylindrical structure is designed, including a wide section, a narrow section, and a transition section. Through stable connection structures such as first and second fixing structures, and by utilizing the cooperation of the first and second annular support plates with the limiting plate, the connection stability is enhanced and structural instability caused by corrosion is prevented.
It improves the overall stability of the cylindrical structure, enhances safety in marine environments, and prevents structural instability caused by corrosion.
Smart Images
Figure CN224030531U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of cranes, and particularly relates to a cylinder structure for connecting a rotary base and a crane. BACKGROUND
[0002] Offshore cranes, also known as offshore hoists, are hoisting equipment specially used for offshore operations, ports and marine engineering, and are widely used in the construction, maintenance and disassembly of oil and gas platforms, offshore wind farms, shipping and other marine facilities.
[0003] The rotary base and the crane of the offshore crane are connected through a connecting structure. Since the structure of the entire crane is large, the connecting structure is also large, and it is difficult to manufacture by one-piece forming and has high technical requirements. At the present stage, the connecting structure is manufactured by combined welding. However, since the marine environment contains a large amount of salt, the surface of the weld is exposed to salt mist, which accelerates the corrosion process, and rust easily occurs in the weld and the surrounding area, which reduces the material strength and affects the stability of the overall structure. SUMMARY
[0004] The utility model mainly solves the technical problem that a cylinder structure for connecting a rotary base and a crane is provided, which can increase the stability of the overall cylinder.
[0005] To solve the above technical problems, one technical scheme of the utility model is provided: a cylinder structure for connecting a rotary base and a crane is provided, which comprises a cylinder, the cylinder is composed of a wide body section and a narrow body section, the wide body section is installed at the top of the narrow body section through a transition section, the top of the wide body section is connected with the bottom of the crane, the bottom of the narrow body section is connected with the top of the rotary base, and a stable connecting structure is arranged in the cylinder.
[0006] The stable connecting structure comprises a first fixing structure for connecting the wide body section and the transition section and a second fixing structure for connecting the transition section and the narrow body section.
[0007] In a preferred embodiment of the utility model, the first fixing structure comprises a first annular support plate, the first annular support plate is fixedly connected with the connection position of the wide body section and the transition section, a plurality of first limiting plates are arranged in a circular array on the first annular support plate, a first groove is formed in each first limiting plate, and the first annular support plate extends into the first groove.
[0008] In a preferred embodiment of the utility model, the vertical edge and the oblique edge of the first limiting plate are fixedly connected with the inner wall of the wide body section and the inner wall of the transition section, respectively, and a first fixing plate is arranged on the upper and lower planes of the first limiting plate.
[0009] In a preferred embodiment of the utility model, the second fixing structure includes a second annular support plate, the second annular support plate is fixedly connected with the connecting place of the transition section and the narrow body section, a plurality of second limiting plates are arranged on the circular array of the second annular support plate, a second groove is formed in the second limiting plate, and the second annular support plate extends into the second groove.
[0010] In a preferred embodiment of the utility model, the second limiting plate is provided with a second fixing plate on the upper and lower planes.
[0011] In a preferred embodiment of the utility model, a plurality of rib plates are fixed on the circular array of the outer wall of the connecting place of the transition section and the narrow body section.
[0012] The utility model discloses a kind of cylinder structures for the connection of rotary base and crane, the cylinder structure has stable connection structure, can increase the stability of cylinder whole, overall structure is not unstable due to the corrosion of marine environment, greatly enhanced security. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a kind of cylinder structure main view sectional view for the connection of rotary base and crane.
[0014] Figure 2 It is Figure 1 A local enlarged view of place.
[0015] Figure 3 It is Figure 1 B local enlarged view of place.
[0016] The marks of components in the drawings are as follows: 1, wide body section;2, narrow body section;3, transition section;4, first annular support plate;5, first limiting plate, 6, first fixing plate;7, first groove;8, second annular support plate;9, second limiting plate;10, second fixing plate;11, second groove;12, rib plate. DETAILED DESCRIPTION
[0017] The preferred embodiments of the utility model are described in detail below in combination with the drawings, so that the advantages and characteristics of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.
[0018] Please refer to Figures 1 to 3 The utility model embodiment includes:
[0019] The application provides a cylinder structure for connecting a rotary base and a crane, comprising a cylinder which is composed of a wide body section 1 and a narrow body section 2, the wide body section 1 is installed on the top of the narrow body section 2 through a transition section 3, the top of the wide body section 1 is connected with the bottom of the crane, the bottom of the narrow body section 2 is connected with the top of the rotary base, a stable connecting structure is arranged in the cylinder, the stability of the whole cylinder is improved, the stability of the whole structure is not influenced by the corrosion of the marine environment, and the safety is greatly improved.
[0020] The stable connecting structure comprises a first fixing structure for connecting the wide body section 1 and the transition section 3 and a second fixing structure for connecting the transition section 3 and the narrow body section 2.
[0021] The first fixing structure comprises a first annular support plate 4 which is fixedly connected with the connecting position of the wide body section 1 and the transition section 3, a plurality of first limiting plates 5 which are arranged in a circular array on the first annular support plate 4, and a first groove 7 which is formed in the first limiting plate 5 and into which the first annular support plate 4 extends, when the wide body section 1 and the transition section 3 are separated at the welding position, the first limiting plate 5 can prevent the wide body section 1 and the transition section 3 from being separated.
[0022] The first limiting plate 5 and the wide body section 1 and the transition section 3 are separated, the first fixing plate 6 does not shake greatly, and the stability of the whole cylinder is ensured.
[0023] The vertical edge and the inclined edge of the first limiting plate 5 are fixedly connected with the inner wall of the wide body section 1 and the inner wall of the transition section 3 respectively, and the first fixing plate 6 is arranged on the upper surface and the lower surface of the first limiting plate 5, the first fixing plate 6 not only plays a supporting role, but also plays a role of fixing a plurality of first limiting plates 5.
[0024] The second fixing structure comprises a second annular support plate 8 which is fixedly connected with the connecting position of the transition section 3 and the narrow body section 2, a plurality of second limiting plates 9 which are arranged in a circular array on the second annular support plate 8, and a second groove 11 which is formed in the second limiting plate 9 and into which the second annular support plate 8 extends, the second fixing plate 10 does not shake greatly when the second fixing plate 10 and the transition section 3 and the narrow body section 2 are separated, and the stability of the whole cylinder is ensured.
[0025] The second fixing plate 10 is arranged on the upper surface and the lower surface of the second limiting plate 9, the second fixing plate 10 not only plays a supporting role, but also plays a role of fixing a plurality of second limiting plates 9.
[0026] The outer wall circular array at the connection of the transition section 3 and the narrow body section 2 is fixed with several rib plates 12, which are used to reinforce the transition from the wide body to the narrow body.
[0027] Different from the prior art, the cylinder structure for connecting the rotary base and the crane has a stable connecting structure, can increase the stability of the whole cylinder, will not cause instability of the whole structure due to corrosion of the marine environment, and greatly enhances the safety.
[0028] In the description of the utility model, it is to be explained that components are all general standard components or components known by those skilled in the art, and the structure and principle thereof can be known by the technical personnel through technical manual or through conventional test method, the orientation or position relation indicated by the terms 'upper', 'lower', 'left', 'right', 'inner', 'outer' and the like is the orientation or position relation based on the shown in the drawings, or the orientation or position relation of the utility model product when being used normally, is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, structure and operation, therefore, cannot be understood as the limitation of the utility model.
[0029] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent flow conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.
Claims
1. A cylinder structure for connecting a rotary base and a crane, comprising a cylinder, the cylinder consisting of a wide body section and a narrow body section, the wide body section being mounted on top of the narrow body section by a transition section, the top of the wide body section being connected to the bottom of the crane, the bottom of the narrow body section being connected to the top of the rotary base, characterized in that: The barrel is internally provided with a stable connecting structure; The stable connecting structure comprises a first fixing structure for connecting the wide body section and the transition section and a second fixing structure for connecting the transition section and the narrow body section; The first fixing structure comprises a first annular support plate fixedly connected with the connecting position of the wide body section and the transition section, a plurality of first limiting plates arranged in a circular array on the first annular support plate, first grooves formed on the first limiting plates, and the first annular support plate inserted into the first grooves; The vertical edge and the oblique edge of the first limiting plate are fixedly connected with the inner wall of the wide body section and the inner wall of the transition section respectively, and the upper and lower planes of the first limiting plate are both provided with first fixing plates; The second fixing structure comprises a second annular support plate fixedly connected with the connecting position of the transition section and the narrow body section, a plurality of second limiting plates arranged in a circular array on the second annular support plate, second grooves formed on the second limiting plates, and the second annular support plate inserted into the second grooves; The upper and lower planes of the second limiting plate are both provided with second fixing plates; A plurality of rib plates are fixedly arranged in a circular array on the outer wall of the connecting position of the transition section and the narrow body section.