Collision protection structure of cab assembly of large-tonnage crawler crane

Abstract

The utility model discloses a collision protection structure of a cab assembly of a large-tonnage crawler crane, which relates to the field of collision protection devices of cab assemblies and comprises a shell, a bearing plate is movably connected in the shell, a support rod is fixedly connected to one side of the bearing plate, a protection plate is fixedly connected to one end of the support rod, and the other end of the protection plate is fixedly connected with a connecting rod. A first damping spring is fixedly connected to the other side of the bearing plate, a supporting plate is movably connected to the other side of the bearing plate, a sliding plate is movably connected to the outer wall of the supporting plate, a second damping spring is fixedly connected to one side of the sliding plate, and a limiting plate is fixedly connected to the interior of the shell. And a bearing plate slides along the shell and extrudes first damping springs, a sliding plate is driven to slide along a limiting plate and extrudes second damping springs, and under the action of the two sets of the first damping springs and the second damping springs, the effect of conveniently buffering impact force generated when the cab is subjected to external collision is achieved.

Description

Technical Field

[0001] The utility model relates to the field of collision protection devices for cab assemblies, in particular to a collision protection structure for a cab assembly of a large-tonnage crawler crane. Background Art

[0002] Crawler crane is the common name for crawler crane, which refers to a fully rotating boom crane with a crawler walking device. The cab assembly is an assembled state of the cab. Due to the complex operating environment of large-tonnage crawler cranes, collision protection devices are needed to protect the cab assembly of large-tonnage crawler cranes. The current collision protection devices are inconvenient to buffer the impact force generated by external collisions on the cab. Therefore, a collision protection structure for the cab assembly of a large-tonnage crawler crane is needed.

[0003] The existing collision protection device is inconvenient to buffer the impact force generated by the external collision of the cab when in use, and it is inconvenient to install the collision protection device outside the cab. Therefore, a collision protection structure of a large-tonnage crawler crane cab assembly is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a collision protection structure for a large-tonnage crawler crane cab assembly to solve the problem that the existing collision protection device is inconvenient to buffer the impact force generated by external collision on the cab and it is inconvenient to install the collision protection device on the outside of the cab.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a collision protection structure of a large-tonnage crawler crane cab assembly, comprising an outer shell, a receiving plate movably connected to the interior of the outer shell, a support rod fixedly connected to one side of the receiving plate, a protective plate fixedly connected to one end of the support rod, a first damping spring fixedly connected to the other side of the receiving plate, a support plate movably connected to the other side of the receiving plate, a slide plate movably connected to the outer wall of the support plate, a second damping spring fixedly connected to one side of the slide plate, and a limiting plate fixedly connected to the interior of the outer shell.

[0006] The outer wall of the shell is fixedly connected with a mounting plate, a slot is provided inside the mounting plate, a bolt is movably connected inside the mounting plate, an insert block is installed inside the mounting plate, a threaded hole is provided inside the insert block, and one side of the insert block is fixedly connected with a cab fixing plate.

[0007] Preferably, the receiving plate and the outer shell form a sliding structure, and the support rods are symmetrically arranged with respect to the central axis of the protective plate.

[0008] Preferably, the receiving plate and the supporting plate form a rotating structure, and the supporting plate and the sliding plate form a rotating structure.

[0009] Preferably, the slide plate forms a sliding structure with the shell through a limiting plate, and the limiting plate is set to be U-shaped.

[0010] Preferably, the mounting plate is snap-connected with the insert block via a slot, and the mounting plate is symmetrically arranged with respect to the central axis of the housing.

[0011] Preferably, the bolt is threadedly connected to the insert block through a threaded hole, and the bolt is matched with the threaded hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a shell, a receiving plate, a support rod, a protective plate, a first damping spring, a support plate, a slide plate, a second damping spring and a limit plate. When a foreign object hits the protective plate, the support rod can squeeze the receiving plate, so that the receiving plate slides along the shell and squeezes the first damping spring, drives the support plate to bend and exerts a lateral force on the slide plate, drives the slide plate to slide along the limit plate and squeezes the second damping spring. Under the action of the two groups of the first damping spring and the second damping spring, the impact force can be buffered, which plays an effect of facilitating the buffering of the impact force generated by the external collision of the cab;

[0014] 2. The utility model is provided with a shell, a mounting plate, a slot, bolts, an insert block, a threaded hole and a cab fixing plate. By moving the shell, the mounting plate is docked to one side of the insert block, and the insert block is inserted into the slot. The bolt is passed through the mounting plate and rotated, and the bolt is inserted into the threaded hole for limiting. The shell and the cab fixing plate are installed and connected, which makes it easy to install the collision protection device outside the cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the housing of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the second damping spring of the utility model;

[0018] Figure 4 It is a schematic diagram of the structural disassembly of the utility model.

[0019] In the figure: 1. outer shell; 2. receiving plate; 3. support rod; 4. protective plate; 5. first damping spring; 6. support plate; 7. slide plate; 8. second damping spring; 9. limit plate; 10. mounting plate; 11. slot; 12. bolt; 13. insert block; 14. threaded hole; 15. cab fixing plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0021] The following describes an embodiment of the utility model based on its overall structure.

[0022] See also Figure 1-4 A collision protection structure of a cab assembly of a large-tonnage crawler crane comprises an outer shell 1, wherein a receiving plate 2 is movably connected inside the outer shell 1, a support rod 3 is fixedly connected to one side of the receiving plate 2, a protective plate 4 is fixedly connected to one end of the support rod 3, a first damping spring 5 is fixedly connected to the other side of the receiving plate 2, a support plate 6 is movably connected to the other side of the receiving plate 2, a slide plate 7 is movably connected to the outer wall of the support plate 6, a second damping spring 8 is fixedly connected to one side of the slide plate 7, a limiting plate 9 is fixedly connected inside the outer shell 1, the receiving plate 2 and the outer shell 1 form a sliding structure, and the support rod 3 is symmetrically arranged with the central axis of the protective plate 4, the receiving plate 2 and the support plate 6 form a rotating structure, and the support plate 6 and the slide plate 7 form a rotating structure, the slide plate 7 forms a sliding structure with the outer shell 1 through the limiting plate 9, and the shape of the limiting plate 9 is set to be U-shaped, which can be convenient for buffering the impact force generated by the external collision of the cab.

[0023] See also Figure 1-4 A collision protection structure of a large-tonnage crawler crane cab assembly, wherein a mounting plate 10 is fixedly connected to the outer wall of a shell 1, a slot 11 is provided inside the mounting plate 10, a bolt 12 is movably connected inside the mounting plate 10, an insert block 13 is installed inside the mounting plate 10, a threaded hole 14 is provided inside the insert block 13, a cab fixing plate 15 is fixedly connected to one side of the insert block 13, the mounting plate 10 is engaged with the insert block 13 through the slot 11, and the mounting plate 10 is symmetrically arranged with respect to the central axis of the shell 1, the bolt 12 is threadedly connected to the insert block 13 through the threaded hole 14, and the bolt 12 is adapted to the threaded hole 14, so that the collision protection device can be conveniently installed outside the cab.

[0024] Working principle: When in use, the protective plate 4 is hit by an external object, which can make the support rod 3 squeeze the receiving plate 2, so that the receiving plate 2 slides along the shell 1 and squeezes the first damping spring 5, driving the support plate 6 to bend and apply a lateral force to the slide plate 7, driving the slide plate 7 to slide along the limit plate 9 and squeeze the second damping spring 8. Under the action of the two groups of first damping springs 5 ​​and second damping springs 8, the impact force can be buffered, which is convenient for buffering the impact force generated by the external collision of the cab. By moving the shell 1, the mounting plate 10 is docked to one side of the plug block 13, and the plug block 13 is inserted into the slot 11, the bolt 12 is passed through the mounting plate 10 and rotated, so that the bolt 12 is inserted into the threaded hole 14 for limiting, so that the shell 1 and the cab fixing plate 15 are installed and connected, which is convenient for installing the collision protection device on the outside of the cab.

[0025] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A collision protection structure of a cab assembly of a large-tonnage crawler crane, comprising a housing (1), characterized in that: The shell (1) is movably connected to a receiving plate (2) inside, one side of the receiving plate (2) is fixedly connected to a support rod (3), one end of the support rod (3) is fixedly connected to a protective plate (4), the other side of the receiving plate (2) is fixedly connected to a first damping spring (5), the other side of the receiving plate (2) is movably connected to a support plate (6), the outer wall of the support plate (6) is movably connected to a slide plate (7), one side of the slide plate (7) is fixedly connected to a second damping spring (8), and the shell (1) is fixedly connected to a limiting plate (9) inside; The outer wall of the housing (1) is fixedly connected to a mounting plate (10), a slot (11) is provided inside the mounting plate (10), a bolt (12) is movably connected inside the mounting plate (10), an insert block (13) is installed inside the mounting plate (10), a threaded hole (14) is provided inside the insert block (13), and a cab fixing plate (15) is fixedly connected to one side of the insert block (13).

2. The collision protection structure of a large-tonnage crawler crane cab assembly according to claim 1 is characterized in that: The receiving plate (2) and the outer shell (1) form a sliding structure, and the support rod (3) is symmetrically arranged with respect to the central axis of the protective plate (4).

3. The collision protection structure of a large-tonnage crawler crane cab assembly according to claim 1 is characterized in that: The receiving plate (2) and the supporting plate (6) form a rotating structure, and the supporting plate (6) and the sliding plate (7) form a rotating structure.

4. The collision protection structure of a large-tonnage crawler crane cab assembly according to claim 1 is characterized in that: The slide plate (7) forms a sliding structure with the housing (1) via a limiting plate (9), and the limiting plate (9) is configured in a U-shape.

5. The collision protection structure of a cab assembly of a large-tonnage crawler crane according to claim 1 is characterized in that: The mounting plate (10) is snap-connected with the insert block (13) via a slot (11), and the mounting plate (10) is symmetrically arranged with respect to the central axis of the housing (1).

6. The collision protection structure of a large-tonnage crawler crane cab assembly according to claim 1 is characterized in that: The bolt (12) is threadedly connected to the insert block (13) through the threaded hole (14), and the bolt (12) is matched with the threaded hole (14).

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