Inhaul cable mechanism for temporarily fixing crane main arm

Abstract

The utility model discloses an inhaul cable mechanism for temporarily fixing a main arm of a crane. The inhaul cable mechanism comprises a fixing block and an inhaul cable, during use, two shackles are correspondingly distributed on the outer sides of the limiting block A and the limiting block B, and the fixing block is rotatably provided with the shackles through an anti-falling pin shaft; an inhaul cable for pulling down the upper part of the crane main arm to prevent the crane main arm from being lifted is generated in the middle, and the two shackles are connected through the inhaul cable. When strong wind occurs, the two ends of the inhaul cable can rotate on the fixing blocks through the shackles to obtain angle swing displacement compensation, direct friction between the two ends of the inhaul cable and the fixing blocks is avoided, and the problem that the two ends of the cable are directly bound and fixed and are prone to swing abrasion after wind power occurs is solved.

Description

Technical Field

[0001] The utility model relates to a cable mechanism for temporarily fixing a main arm of a crane, and belongs to the technical field of hoisting support equipment. Background Art

[0002] After the hoisting platform is in place at sea, when encountering strong winds, the main arm of the large crane arranged on the hoisting platform is in a shaking and unsafe state, and the main arm of the crane needs to be supported. After the main arm of the crane is placed, the upper part of the main arm of the crane needs to be pulled down to ensure that the main arm of the crane does not rise.

[0003] The existing downward force-bearing technology is shown in Chinese Patent Publication No. CN212099741U. Although downward pressure is generated in the middle by fixing the two ends of the rope to ensure that the main arm of the crane will not lift up, the wind force is strong in the offshore environment, and the two ends of the rope are directly tied and fixed, which is prone to swing and wear due to wind force. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a cable mechanism for temporarily fixing the main arm of a crane.

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

[0006] The utility model provides a cable mechanism for temporarily fixing a crane main arm, comprising:

[0007] A fixed block that is in a fixed state when in use;

[0008] When in use, two shackles are correspondingly distributed on the outside of the limit block A and the limit block B, and the fixed block is rotatably mounted with the shackle through the anti-drop pin shaft;

[0009] A cable is generated in the middle to pull down the upper part of the crane's main arm to prevent it from lifting up, and the two shackles are connected by the cable.

[0010] The utility model also comprises a connecting platform, which comprises a vertical fixing part and a hanging part which is fixed on the outer side of the vertical fixing part and hangs outward.

[0011] Fixed blocks are correspondingly fixedly installed on the overhanging parts located outside the limit blocks A and B.

[0012] It also includes a hoisting platform, and the vertical fixing part of the connecting platform is fixed on the hoisting platform.

[0013] A vertical ladder and an arc rib plate are installed on the vertical fixing part. The vertical ladder is located inside the arc rib plate, and the arc rib plates are fixedly connected by the vertical rib plate.

[0014] An operation platform for operators to stand on is installed on the overhanging part adjacent to the vertical fixing part. A safety fence for protection is installed on the overhanging part at the operation platform, and the safety fence wraps the operation platform.

[0015] On the overhanging part away from the vertical fixing part, limit blocks A and B are symmetrically and detachably fixed. Limit blocks A and B are L-shaped. Sleepers A and B are respectively installed corresponding to limit blocks A and B, and sleepers A and B are detachably fixed, with sleeper A lower than sleeper B.

[0016] The beneficial effect of the present utility model is that when affected by strong winds, both ends of the cable can rotate on the fixing block through shackles to obtain angular swing displacement compensation, avoiding direct friction between both ends of the cable and the fixing block, and solving the problem that the two ends of the rope are directly tied and fixed and are prone to swing and wear after being affected by wind force. Description of the Drawings

[0017] Figure 1 is the front view distribution schematic diagram of the present utility model;

[0018] Figure 2 is the top view distribution schematic diagram of the vertical ladder of the present utility model at the vertical fixing part;

[0019] Figure 3 is the connection distribution schematic diagram of the fixing block and the cable of the present utility model;

[0020] In the figure: 1 - hoisting platform; 3 - crane boom; 4 - connecting platform; 41 - overhanging part; 42 - vertical fixing part; 61 - vertical ladder; 62 - arc rib plate; 63 - vertical rib plate; 43 - limit block A; 44 - sleeper A; 45 - sleeper B; 46 - limit block B; 47 - safety fence; 48 - operation platform; 51 - cable; 52 - shackle; 53 - fixing block; 54 - anti - detachment pin shaft. Detailed Embodiment

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

[0022] As Figures 1 to 3 shown.

[0023] A cable mechanism for temporarily fixing a crane boom of the present application includes:

[0024] A hoisting platform 1 providing an installation basis for the fixed state, on which a connecting platform 4 is fixedly installed, and the vertical fixing part 42 of the connecting platform 4 and the overhanging part 41 fixed on the outer side of the vertical fixing part 42 and protruding outwards.

[0025] A vertical ladder 61 and arc-shaped rib plates 62 are installed on the vertical fixing part 42. The vertical ladder 61 is located inside the arc-shaped rib plates 62, and the arc-shaped rib plates 62 are fixedly connected through vertical rib plates 63. Operators climb to the top of the vertical fixing part 42 through the vertical ladder 61 on the lifting platform 1.

[0026] An operation platform 48 for operators to stand on is installed on the overhanging part 41 adjacent to the vertical fixing part 42. A safety fence 47 for protection is installed on the overhanging part 41 at the operation platform 48, and the safety fence 47 wraps the operation platform 48.

[0027] On the overhanging part 41 far from the vertical fixing part 42, a limit block A43 and a limit block B46 are symmetrically and detachably fixed by bolts. The limit block A43 and the limit block B46 are L-shaped. A sleeper A44 and a sleeper B45 are respectively installed corresponding to the limit block A43 and the limit block B46, and the sleeper A44 and the sleeper B45 are detachably fixed by bolts. The boom 3 of the crane is placed on the sleeper A44 and the sleeper B45 so that both sides and the bottom are limited. The sleeper A44 is lower than the sleeper B45, which is convenient for the boom 3 of the crane to be adjusted and placed from the side of the sleeper A44.

[0028] Fixed blocks 53 are fixedly installed corresponding to the outside of the limit block A43 and the limit block B46 on the overhanging part 41. Shackles 52 are rotatably installed on the fixed blocks 53 through anti-drop pin shafts 54. The two shackles 52 are correspondingly distributed outside the limit block A43 and the limit block B46, and the two shackles 52 are connected by a cable 51. A downward pulling force is generated in the middle of the cable 51 to prevent the upper part of the boom 3 of the crane from lifting.

[0029] When strong winds occur, both ends of the cable 51 can rotate on the fixed block 53 through the shackle 52 to obtain angular swing displacement compensation, avoiding direct friction between both ends of the cable 51 and the fixed block 53, and solving the problem that the two ends of the rope are directly tied and fixed and are prone to swing and wear after being affected by wind force.

Claims

1. A cable mechanism for temporarily fixing the main arm of a crane, characterized in that: include: A fixed block (53) which is in a fixed state when in use; When in use, two shackles (52) are correspondingly distributed outside the limit block A (43) and the limit block B (46), and the fixed block (53) is rotatably mounted with the shackle (52) via an anti-drop pin shaft (54); A cable (51) is generated in the middle portion to pull down the upper portion of the crane main arm (3) to prevent it from being lifted up, and two shackles (52) are connected via the cable (51).

2. The cable mechanism for temporarily fixing the main arm of a crane according to claim 1, characterized in that: It also includes a connecting platform (4), which has a vertical fixing portion (42) and a hanging portion (41) fixed to the outer side of the vertical fixing portion (42) and hanging outward.

3. The cable mechanism for temporarily fixing the crane main arm according to claim 2, characterized in that: Fixed blocks (53) are correspondingly fixedly mounted on the overhanging portions (41) located outside the limit blocks A (43) and the limit blocks B (46).

4. The cable mechanism for temporarily fixing the main arm of a crane according to claim 2, characterized in that: It also comprises a hoisting platform (1), and the vertical fixing portion (42) of the connecting platform (4) is fixed on the hoisting platform (1).

5. The cable mechanism for temporarily fixing the crane main arm according to claim 2, characterized in that: A vertical ladder (61) and arc rib plates (62) are installed on the vertical fixing portion (42); the vertical ladder (61) is located inside the arc rib plates (62); and the arc rib plates (62) are fixedly connected via vertical rib plates (63).

6. The cable mechanism for temporarily fixing the main arm of a crane according to claim 2, characterized in that: An operating platform (48) for operators to stand on is installed on the overhanging portion (41) close to the vertical fixing portion (42), and a safety fence (47) for protection is installed on the overhanging portion (41) at the operating platform (48), and the safety fence (47) wraps the operating platform (48).

7. The cable mechanism for temporarily fixing the main arm of a crane according to claim 6, characterized in that: A limit block A (43) and a limit block B (46) are symmetrically and detachably fixedly installed on the hanging portion (41) away from the vertical fixing portion (42); the limit block A (43) and the limit block B (46) are L-shaped; the limit block A (43) and the limit block B (46) are respectively and correspondingly installed with a sleeper A (44) and a sleeper B (45); the sleeper A (44) and the sleeper B (45) are detachably and fixedly installed; the sleeper A (44) is lower than the sleeper B (45).

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