A combined cantilever crane

Abstract

The utility model is a combined cantilever crane, belonging to the field of cranes. Its technical solution is that a combined cantilever crane includes a column and a boom assembly located at the upper end of the column, the column includes a certain number of standard sections, the upper end of the standard section is provided with an upper connecting structure, the lower end of the standard section is provided with a lower connecting structure, and the upper connecting structure and the lower connecting structure can be connected in cooperation; it also includes a base, a first connecting assembly is provided between the base and the standard section located at the bottom, a second connecting assembly is provided between the standard section located at the top and the boom assembly, and the first connecting assembly and / or the second connecting assembly include a translation structure. In this solution, the various parts of the cantilever crane are modularly combined in design, the overall height of the cantilever crane is adjusted by connecting different numbers of standard sections, the horizontal position of the boom assembly is adjusted by the first and second connecting assemblies, and the shape of the cantilever crane is flexibly changed so that it can adapt to more complex and narrow use spaces.

Description

Technical Field

[0001] The utility model relates to the field of cranes, in particular to a combined cantilever crane. Background Art

[0002] In the daily operation of port loading and unloading equipment, repair and maintenance work is a key link to ensure the efficient and safe operation of the equipment.

[0003] Although many port loading and unloading equipment are currently equipped with fixed auxiliary maintenance cantilever cranes to support the handling and maintenance of heavy parts, the limitations of these fixed cantilever cranes have gradually become apparent in actual operations.

[0004] Fixed auxiliary maintenance cantilever cranes are usually strictly restricted by spatial location, and their installation location and working range are pre-set, which to a certain extent limits their flexibility and versatility during the maintenance process. Especially in some maintenance scenarios with narrow space and complex structures, fixed cantilever cranes can often only complete the handling of heavy parts and cannot meet more diverse maintenance hoisting needs. Summary of the invention

[0005] The utility model provides a combined cantilever crane in view of the problem that the current fixed cantilever crane requires a large space for use and is not suitable for narrow and complex spaces.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a combined cantilever crane, including a column and a boom assembly located at the upper end of the column, the column includes a certain number of standard sections, the upper end of the standard section is provided with an upper connecting structure, the lower end of the standard section is provided with a lower connecting structure, and the upper connecting structure and the lower connecting structure can be connected in a cooperative manner; it also includes a base, a first connecting assembly is provided between the base and the standard section located at the bottom, a second connecting assembly is provided between the standard section located at the top and the boom assembly, and the first connecting assembly and / or the second connecting assembly include a translation structure. In this solution, the various parts of the cantilever crane are modularly combined in design, the overall height of the cantilever crane is adjusted by connecting different numbers of standard sections, the horizontal position of the boom assembly is adjusted by the first and second connecting assemblies, and the shape of the cantilever crane is flexibly changed so that it can adapt to more complex and narrow usage spaces.

[0007] Preferably, the first connection assembly and / or the second connection assembly includes a first connection plate and a second connection plate, the first connection plate is provided with first connection holes on both sides, the second connection holes are provided on both sides of the second connection plate, at least one of the first connection hole and the second connection hole is a long hole and the length direction of the long hole is arranged horizontally, the first connection hole and the second connection hole at the corresponding position are provided with tension bolts, the standard section is located between the first connection plate and the second connection plate, and one of the first connection plate and the second connection plate is fixedly connected to the base or the boom assembly. The column is fixed to the base and the boom assembly by tension connection, which can adapt to different standard section sizes, thereby adjusting the volume and weight of the column, and the fixed position can be adjusted horizontally through the long hole to achieve horizontal displacement adjustment of the column and the boom.

[0008] Preferably, at least two second connecting plates are provided, and the plurality of second connecting plates are arranged vertically within the width of the first connecting plate and are all connected to the first connecting plate by tension bolts.

[0009] Preferably, the first connecting component and the second connecting component have the same structure.

[0010] Preferably, the base includes an upper plate and a lower plate, the upper plate and the lower plate are connected by a vertical plate, the upper plate and the lower plate are respectively provided with through holes, the through holes are provided with bolts for connecting the installation foundation, and the first connecting plate of the first connecting assembly is fixedly connected to the vertical plate. Increasing the weight of the base improves the overall stability of the cantilever crane.

[0011] Preferably, the boom assembly includes a connecting arm and a swivel arm, one end of the connecting arm is fixedly connected to the first connecting plate of the second connecting assembly, and one end of the swivel arm is hinged to the other end of the connecting arm; a pulley is installed on the swivel arm, and the pulley can move along the connecting arm.

[0012] Preferably, one of the upper connection structure and the lower connection structure is a plug-in column, and the other is a slot, the shape of the slot is adapted to the cross-sectional area of ​​the plug-in column, the plug-in column protrudes from one end surface of the standard section, and the slot is opened at the other end surface of the standard section. The plug-in structure is adopted to improve the bending resistance, thereby improving the overall stability of the cantilever crane.

[0013] It can be seen from the above technical scheme that the advantages of the utility model are that the various parts of the cantilever crane are designed in a modular combination. The overall height of the cantilever crane can be adjusted by connecting different numbers of standard sections, and the horizontal position of the boom assembly can be adjusted by the first and second connecting assemblies. The shape of the cantilever crane can be flexibly changed to enable it to adapt to more complex and narrow usage spaces. Through modular design, flexible assembly and disassembly can be achieved in a limited space, thereby adapting to the needs of different maintenance scenarios; the structural design is reasonable, the overall structural combination is stable to install, and the load-bearing capacity is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the base in a specific implementation manner of the utility model.

[0017] Figure 3 It is a structural schematic diagram of the first connecting component in a specific implementation manner of the utility model.

[0018] Figure 4 It is a structural schematic diagram of a column in a specific implementation manner of the utility model.

[0019] Description of main reference numerals

[0020] 1. Base, 1-1. Upper plate, 1-2. Lower plate, 1-3. Vertical plate, 2. Standard section, 3-1. First connecting plate, 3-2. Second connecting plate, 3-3. Tension bolts, 4-1. Connecting arm, 4-2. Rotating arm, 4-3. Pulley. DETAILED DESCRIPTION

[0021] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0022] like Figure 1-4 As shown, a combined cantilever crane comprises a base 1, a column and a boom assembly located at the upper end of the column, wherein the column comprises a certain number of standard sections 2, the upper end of the standard section 2 is provided with an upper connecting structure, and the lower end of the standard section is provided with a lower connecting structure, and the upper connecting structure and the lower connecting structure can be matched and connected. In this embodiment, as Figure 4 As shown, one of the upper connecting structure and the lower connecting structure is a plug-in column, and the other is a slot, the shape of the slot is adapted to the cross-sectional area of ​​the plug-in column, the plug-in column protrudes from one end face of the standard section, and the slot is opened on the other end face of the standard section.

[0023] A first connection assembly is provided between the base 1 and the standard section 2 at the bottom, and a second connection assembly is provided between the standard section 2 at the top and the boom assembly. The first connection assembly and / or the second connection assembly include a translation structure, such as Figure 3 As shown, the first connecting assembly and the second connecting assembly have the same structure. Taking the first connecting assembly as an example, it includes a first connecting plate 3-1 and multiple second connecting plates 3-2 (two in this embodiment), and the multiple second connecting plates 3-2 are arranged up and down within the width of the first connecting plate 3-1. The first connecting plate 3-1 is provided with first connecting holes on both sides, and the second connecting holes on both sides of the second connecting plate 3-2. At least one of the first connecting hole and the second connecting hole is a long hole and the length direction of the long hole is arranged horizontally. The first connecting hole and the second connecting hole at the corresponding position are jointly provided with tension bolts 3-3. The second connecting plate is connected to the first connecting plate 3-1 by tension bolts. The standard section 2 is located between the first connecting plate 3-1 and the second connecting plate 3-2. One of the first connecting plate 3-1 and the second connecting plate 3-2 is fixedly connected to the base 1 or the boom assembly.

[0024] The base 1 includes an upper plate 1-1 and a lower plate 1-2, which are connected by a vertical plate 1-3. Through holes are respectively provided on the upper plate 1-1 and the lower plate 1-2, and bolts for connecting to the installation foundation are provided in the through holes. The first connecting plate of the first connecting assembly is fixedly connected to the vertical plate 1-3; the boom assembly includes a connecting arm 4-1 and a slewing arm 4-2, one end of the connecting arm 4-1 is fixedly connected to the first connecting plate of the second connecting assembly, and one end of the slewing arm 4-2 is hinged to the other end of the connecting arm 4-1; a pulley 4-3 is installed on the slewing arm 4-2, and the pulley 4-3 can move along the connecting arm 4-1.

[0025] It can be seen from the above embodiments that the beneficial effect of the utility model lies in that the various parts of the cantilever crane are designed in a modular combination. The overall height of the cantilever crane is adjusted by connecting different numbers of standard sections, and the horizontal position of the boom assembly is adjusted by the first and second connecting assemblies. The shape of the cantilever crane can be flexibly changed to enable it to adapt to more complex and narrow usage spaces. Through modular design, flexible assembly and disassembly can be achieved in a limited space, thereby adapting to the needs of different maintenance scenarios; the structural design is reasonable, the overall structural combination is stable to install, and the load-bearing capacity is strong.

[0026] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A modular cantilever crane, comprising a column and a boom assembly located at the upper end of the column, characterized in that: The column comprises a certain number of standard sections (2), the upper end of the standard section (2) is provided with an upper connection structure, the lower end of the standard section is provided with a lower connection structure, and the upper connection structure and the lower connection structure can be matched and connected; It also comprises a base (1), a first connection assembly is provided between the base (1) and a standard section (2) at the bottom, a second connection assembly is provided between the standard section (2) at the top and the boom assembly, and the first connection assembly and / or the second connection assembly comprises a translation structure.

2. The combined cantilever crane according to claim 1, characterized in that: The first connection assembly and / or the second connection assembly comprises a first connection plate (3-1) and a second connection plate (3-2), the first connection plate (3-1) having first connection holes on both sides, the second connection plate (3-2) having second connection holes on both sides, at least one of the first connection hole and the second connection hole being a long hole and arranged horizontally in the length direction of the long hole, the first connection hole and the second connection hole at the corresponding position having tension bolts (3-3) arranged in common, the standard section (2) being located between the first connection plate (3-1) and the second connection plate (3-2), and one of the first connection plate (3-1) and the second connection plate (3-2) being fixedly connected to the base (1) or the boom assembly.

3. The combined cantilever crane according to claim 2, characterized in that: At least two second connecting plates (3-2) are provided, and the plurality of second connecting plates (3-2) are arranged vertically within the width of the first connecting plate (3-1) and are all connected to the first connecting plate (3-1) via tension bolts.

4. The combined cantilever crane according to any one of claims 1 to 3, characterized in that: The first connecting component and the second connecting component have the same structure.

5. The combined cantilever crane according to claim 4, characterized in that: The base (1) comprises an upper plate (1-1) and a lower plate (1-2), the upper plate and the lower plate being connected via a vertical plate (1-3), the upper plate (1-1) and the lower plate (1-2) being respectively provided with through holes, the through holes being provided with bolts for connecting to a mounting base, and the first connecting plate of the first connecting assembly being fixedly connected to the vertical plate (1-3).

6. The combined cantilever crane according to claim 4, characterized in that: The boom assembly comprises a connecting arm (4-1) and a slewing arm (4-2); one end of the connecting arm (4-1) is fixedly connected to a first connecting plate of a second connecting assembly, and one end of the slewing arm (4-2) is hinged to the other end of the connecting arm (4-1); a pulley (4-3) is mounted on the slewing arm (4-2), and the pulley (4-3) is capable of moving along the connecting arm (4-1).

7. The combined cantilever crane according to claim 1, characterized in that: One of the upper connection structure and the lower connection structure is a plug-in column, and the other is a slot. The shape of the slot is adapted to the cross-sectional area of ​​the plug-in column. The plug-in column protrudes from one end surface of the standard section, and the slot is opened on the other end surface of the standard section.

Images