Cantilever platform shelf for crane boom

Abstract

The utility model discloses an overhanging platform shelf for a crane main arm. The overhanging platform shelf comprises a vertical frame in a vertical fixed state; the cantilever frame is fixed on the side edge of the vertical frame and extends outwards; and a limiting block A and a limiting block B which are used for placing a crane main arm are symmetrically mounted at the end part, far away from the vertical frame, of the cantilever frame. After being placed, the crane main arm is located on the overhanging frame extending outwards from the side edge of the vertical frame, the crane main arm is prevented from being located at the top of the vertical frame, the problem that due to the fact that the crane arm interferes with the crane arm, an operator cannot climb up and down conveniently is solved, and the operation efficiency of the operator for supporting and adjusting is not affected.

Description

Technical Field

[0001] The utility model relates to a cantilever platform shelf for a crane boom, belonging to the technical field of crane construction auxiliary equipment. Background Technique

[0002] After the lifting platform is in place at sea, it is necessary to support and fix the main boom of the crane on the lifting platform to cope with the wind load at sea.

[0003] The existing technology for supporting the main boom can be seen in CN110203837A. The boom is directly supported on the top of the frame through sleepers. Although support can be obtained, when the operator makes support adjustments, it will be interfered by the boom, which is not convenient for the operator to climb up and down for operation. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a cantilever platform shelf for a crane boom.

[0005] The utility model is realized through the following technical solutions.

[0006] A cantilever platform shelf for a crane boom provided by the utility model includes:

[0007] A vertical frame in a vertically fixed state;

[0008] A cantilever frame fixed to extend outward from the side of the vertical frame;

[0009] At the end of the cantilever frame far from the vertical frame, limit blocks A and B for placing the crane boom are symmetrically installed.

[0010] Both the limit blocks A and B are L-shaped. A vertical sleeper A and a horizontal sleeper A are correspondingly fixedly installed on the vertical section and the horizontal section of the limit block A, and a vertical sleeper B and a horizontal sleeper B are correspondingly fixedly installed on the vertical section and the horizontal section of the limit block B. The vertical sleeper A is shorter than the vertical sleeper B.

[0011] It further includes an in-place platform providing an installation foundation, and the vertical frame is fixed on the in-place platform.

[0012] A vertical climbing ladder for the operator to climb or walk is installed in the vertical frame. A plurality of arc-shaped rib plates are fixedly arranged on the vertical frame at intervals. The arc-shaped rib plates are fixedly connected through vertical rib plates. The arc-shaped rib plates and the vertical rib plates are distributed on the outer periphery of the vertical climbing ladder for protection.

[0013] An operation platform for the operator to stand on is fixedly installed at the end of the cantilever frame far from the vertical frame. A safety fence is fixed to the cantilever frame at the operation platform, and the safety fence surrounds the operation platform.

[0014] The outrigger installed on both sides of the limit block A and the limit block B is equipped with a fixed block, and the fixed block is rotatably hinged with a movable block. The two movable blocks are connected by a cable that can generate a downward pressure on the crane boom in the middle for limiting.

[0015] The beneficial effect of the utility model is that after the crane boom is placed, it is on the outrigger extending outward from the side of the vertical frame, avoiding the crane boom being at the top of the vertical frame, solving the problem that the boom interference is not convenient for the operators to climb up and down, and does not affect the operation efficiency of the operators for support adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the front view distribution schematic diagram of the utility model;

[0017] Figure 2 is the top view distribution schematic diagram of the utility model;

[0018] Figure 3 is the front view distribution schematic diagram of the limit block A of the utility model;

[0019] Figure 4 is the front view distribution schematic diagram of the limit block B of the utility model;

[0020] In the figure: 1 - positioning platform; 21 - horizontal sleeper B; 22 - vertical sleeper B; 3 - crane boom; 31 - vertical sleeper A; 32 - horizontal sleeper A; 41 - outrigger; 42 - vertical frame; 43 - limit block A; 44 - limit block B; 47 - safety fence; 48 - operation platform; 51 - cable; 52 - movable block; 53 - fixed block; 61 - vertical ladder; 62 - circular arc rib plate; 63 - vertical rib plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solution of the present utility model will be further described below, but the scope of protection is not limited thereto.

[0022] As Figures 1 to 3 shown.

[0023] A cantilever platform shelf for a crane boom of the present application includes:

[0024] The positioning platform 1 that constitutes part of the modules of the offshore lifting platform, and the positioning platform 1 is fixed on the offshore lifting platform. The positioning platform 1 provides an installation foundation.

[0025] A vertical frame 42 is fixed on the positioning platform 1. A vertical ladder 61 for the operators to climb or walk is installed in the vertical frame 42. A plurality of spaced circular arc rib plates 62 are fixed on the vertical frame 42. The circular arc rib plates 62 are fixedly connected by vertical rib plates 63. The circular arc rib plates 62 and the vertical rib plates 63 are distributed outside the vertical ladder 61 for protection.

[0026] A cantilever frame 41 is welded or bolted to the vertical frame 42; at the end of the cantilever frame 41 away from the vertical frame 42, a limit block A43 and a limit block B44 are symmetrically installed. Both the limit block A43 and the limit block B44 are L-shaped. A vertical sleeper A31 and a horizontal sleeper A32 are fixedly installed on the vertical section and the horizontal section of the limit block A43 by bolts respectively. A vertical sleeper B22 and a horizontal sleeper B21 are fixedly installed on the vertical section and the horizontal section of the limit block B44 by bolts respectively. The vertical sleeper A31 is shorter than the vertical sleeper B22. When placing the crane boom 3, it can be placed from the side of the vertical sleeper A31, avoiding the need to raise the crane boom 3 too much.

[0027] An operation platform 48 for operators to stand on is fixedly installed at the end of the cantilever frame 41 away from the vertical frame 42. A safety fence 47 is fixed to the cantilever frame 41 at the operation platform 48, and the safety fence 47 surrounds the operation platform 48 for protection.

[0028] Fixed blocks 53 are installed on the cantilever frame 41 on both sides of the limit block A43 and the limit block B44. The fixed blocks 53 are rotatably hinged to movable blocks 52 through pins. The two movable blocks 52 are connected by a cable 51, and the middle part of the cable 51 can generate a downward pressure on the crane boom 3 for limiting.

[0029] When the crane boom 3 is placed on the limit block A43 and the limit block B44 of the cantilever frame 41, the bottom edge of the crane boom 3 presses on the horizontal sleepers A32 and the horizontal sleepers B21, and the side edge of the crane boom 3 is limited by the vertical sleepers A31 and the vertical sleepers B22. The operators climb up and down through the vertical ladder 61 fixed to the vertical frame 42 and carry out preparatory work in a state of being protected by the safety fence 47 on the operation platform 48. Since the crane boom 3 is placed on the cantilever frame 41 extending outward from the side of the vertical frame 42 after being placed, it avoids the crane boom 3 being at the top of the vertical frame 42, solves the problem that the boom interference is not convenient for the operators to climb up and down, and does not affect the operation efficiency of the operators for support adjustment.

Claims

1. A cantilever platform rack for a crane main arm, characterized in that: include: A vertical frame (42) in a vertically fixed state; A cantilever frame (41) fixed to the side of the vertical frame (42) and extending outward; A limit block A (43) and a limit block B (44) for placing the crane main arm (3) are symmetrically installed at the end of the cantilever frame (41) away from the vertical frame (42).

2. The cantilever platform rack for the crane main arm as claimed in claim 1, characterized in that: The limit block A (43) and the limit block B (44) are both L-shaped, and the vertical section and the horizontal section of the limit block A (43) are fixedly installed with a vertical sleeper A (31) and a horizontal sleeper A (32) respectively, and the vertical section and the horizontal section of the limit block B (44) are fixedly installed with a vertical sleeper B (22) and a horizontal sleeper B (21) respectively, and the vertical sleeper A (31) is shorter than the vertical sleeper B (22).

3. The cantilever platform rack for the crane main arm as claimed in claim 1, characterized in that: It also includes a positioning platform (1) that provides an installation foundation, and a vertical frame (42) is fixed on the positioning platform (1).

4. The cantilever platform rack for the crane main arm as claimed in claim 1 or 3, characterized in that: A vertical ladder (61) for workers to climb or walk is installed in the vertical frame (42). A plurality of arc rib plates (62) are fixed to the vertical frame (42) and are distributed at intervals. The arc rib plates (62) are fixedly connected by vertical rib plates (63). The arc rib plates (62) and the vertical rib plates (63) are distributed on the periphery of the vertical ladder (61) for protection.

5. The cantilever platform rack for the crane main arm as claimed in claim 4, characterized in that: An operating platform (48) for operators to stand on is fixedly installed at the end of the cantilever frame (41) away from the vertical frame (42), and a safety fence (47) is fixed to the cantilever frame (41) at the operating platform (48), and the safety fence (47) surrounds the operating platform (48).

6. The cantilever platform rack for the crane main arm as claimed in claim 5, characterized in that: The cantilever frame (41) is provided with a fixed block (53) on both sides of the limit block A (43) and the limit block B (44). The fixed block (53) is rotatably hinged with a movable block (52). The two movable blocks (52) are connected by a cable (51) in the middle that can limit the downward pressure generated by the crane main arm (3).

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