Suspension arm supporting and stabilizing system of marine hydraulic slewing crane

Abstract

The utility model discloses a lazy arm supporting and stabilizing system of a marine hydraulic slewing crane, which comprises a lazy arm shelf for supporting a lazy arm of the hydraulic slewing crane, the lazy arm shelf comprises a fixed lazy arm shelf and a movable lazy arm shelf, the fixed lazy arm shelf corresponds to an arm head part for supporting the lazy arm, and the movable lazy arm shelf corresponds to an arm body part for supporting the lazy arm. The fixed suspension arm shelf and the movable suspension arm shelf jointly support the suspension arm to form a suspension arm double-support stable structure, and the movable suspension arm shelf can move in the length direction of the suspension arm to adjust the distance between two supporting point positions of the suspension arm double-support stable structure. According to the utility model, the double-point support of the suspension arm is realized through a suspension arm double-support stable structure formed by the fixed suspension arm shelf and the movable suspension arm shelf, so that the stability and the safety of the suspension arm placement are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic slewing cranes, and particularly relates to a boom support and stability system for a marine hydraulic slewing crane. Background Art

[0002] The marine hydraulic slewing crane is loaded on the deck of a ship and arranged close to the ship's side, and can be used for hoisting lifeboats or goods. The boom rest, also commonly known as the boom support or boom bracket, is an important component of a hydraulic slewing crane and other lifting cranes, which plays a role in supporting the boom and stabilizing the hoisting of heavy objects. The existing boom rest for a hydraulic slewing crane is generally arranged at the head of the boom, forming a single-support boom structure. However, the support point is far from the slewing disc, and there is only one support point, resulting in insufficient stability of the boom for hoisting heavy objects, and it is easy to cause lateral dragging damage to the turntable, posing a safety hazard. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the utility model provides a boom support and stability system for a marine hydraulic slewing crane, which realizes double-point support for the boom through a boom double-support stability structure composed of a fixed boom rest and a movable boom rest, greatly improving the stability and safety of the boom placement.

[0004] Technical Solution: To achieve the above object, a boom support and stability system for a marine hydraulic slewing crane of the utility model includes a boom rest for supporting the boom of the hydraulic slewing crane. The boom rest includes a fixed boom rest and a movable boom rest. The fixed boom rest corresponds to the head part of the supported boom, and the movable boom rest corresponds to the body part of the supported boom. The fixed boom rest and the movable boom rest jointly support the boom to form a boom double-support stability structure, and the movable boom rest can displace along the length direction of the boom to adjust the distance between the two support points of the boom double-support stability structure.

[0005] Further, the movable boom rest is arranged to be liftable;

[0006] When the movable boom rest rises to support the boom, it forms a boom double-support stability structure with the fixed boom rest;

[0007] When the movable boom rest descends to disengage from the boom, the fixed boom rest independently supports the boom to form a boom single-support stability structure;

[0008] The boom double-support stability structure and the boom single-support stability structure are switched through the lifting and lowering adjustment of the movable boom rest.

[0009] Furthermore, the boom shelf includes a support frame. A through groove portion into which the boom is inserted is provided at the top of the support frame. Stabilizing feet are provided at the bottom of the support frame. An inclined support rod is connected to the support frame at an angle. The support frame and the inclined support rod form a triangular stable structure.

[0010] Furthermore, it includes a displacement driving portion corresponding to the movable boom shelf, and this displacement driving portion drives the movable boom shelf to translate.

[0011] Furthermore, a lifting driving mechanism is connected between the support frame of the movable boom shelf and the through groove portion, and this lifting driving mechanism drives the through groove portion of the movable boom shelf to displace vertically.

[0012] Furthermore, the lifting driving mechanism includes a middle telescopic sleeve rod and a side push-pull device for driving the middle telescopic sleeve rod to expand and contract; the through groove portion of the movable boom shelf is connected to the support frame through the middle telescopic sleeve rod, and the two ends of the side push-pull device are respectively connected to the connecting plates at the top and bottom ends of the middle telescopic sleeve rod.

[0013] Beneficial effects: The double-boom support stable structure formed by the fixed boom shelf and the movable boom shelf in the present utility model realizes double-point support for the boom. Compared with the single-point support in the prior art, it can greatly improve the stability of the boom placement, eliminate the lateral dragging effect on the turntable, and ensure the safety of the hydraulic slewing crane operation. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model. Detailed Embodiment

[0015] The present utility model will be further described below with reference to the drawings.

[0016] As Figure 1 shown, a boom support and stabilization system for a marine hydraulic slewing crane includes a boom shelf for supporting the boom 11 of the hydraulic slewing crane. This boom shelf includes a fixed boom shelf 1 and a movable boom shelf 2. The fixed boom shelf 1 correspondingly supports the boom head portion of the boom 11, and the movable boom shelf 2 correspondingly supports the boom body portion of the boom 11. The fixed boom shelf 1 and the movable boom shelf 2 jointly support the boom 11 to form a double-boom support stable structure, and the movable boom shelf 2 can displace along the boom length direction of the boom 11 to adjust the distance between the two support points of the double-boom support stable structure. The double-point support for the boom is realized through the double-boom support stable structure formed by the fixed boom shelf 1 and the movable boom shelf 2 in the present utility model. Compared with the single-point support in the prior art, it can greatly improve the stability of the boom placement, eliminate the lateral dragging effect on the turntable, and ensure the safety of the hydraulic slewing crane operation.

[0017] It should be noted that the movable jib shelf 2 is arranged to be liftable; when the movable jib shelf 2 rises to support the jib 11, it forms a double-support stable structure of the jib with the fixed jib shelf 1; when the movable jib shelf 2 descends and disengages from the jib 11, the fixed jib shelf 1 independently supports the jib 11 to form a single-support stable structure of the jib; the double-support stable structure of the jib and the single-support stable structure of the jib realize structural conversion through the lifting and lowering adjustment of the movable jib shelf 2. It can be seen from this that the combination of the fixed jib shelf 1 and the movable jib shelf 2 of the present invention can not only realize the double-point support of the jib 11, but also realize the single-point support. The double-point support is suitable for the situation where the goods to be hoisted are heavier to ensure safety, and the single-point support is suitable for the situation where the goods to be hoisted are lighter, and can be flexibly switched according to the operation situation.

[0018] The movable jib shelf 2 can translate. On the one hand, it is convenient to adjust the point distance when starting the double-point support. On the other hand, when starting the single-point support, the movable jib shelf 2 can also be moved to a non-obstructing position to facilitate subsequent operations.

[0019] More specifically, the jib shelf includes a support frame 4. A through groove part 5 into which the jib 11 is embedded is arranged at the top of the support frame 4. A stabilizing foot 6 is arranged at the bottom of the support frame. An inclined support rod 7 is connected to the support frame 4 at an angle. The support frame 4 and the inclined support rod 7 form a triangular stable structure, and based on the triangular stability principle, the support stability is improved.

[0020] The present invention includes a displacement driving part 3 corresponding to the movable jib shelf 2, and this displacement driving part 3 drives the movable jib shelf 2 to translate. The displacement driving part 3 is preferably an electric guide rail, and the movable jib shelf 2 is seated on the slider 10 of the electric guide rail.

[0021] A lifting driving mechanism is connected between the support frame 4 and the through groove part 5 of the movable jib shelf 2, and this lifting driving mechanism drives the through groove part 5 of the movable jib shelf 2 to displace vertically. More specifically, the lifting driving mechanism includes a middle telescopic sleeve rod 8 and a side push-pull device 9 for driving the middle telescopic sleeve rod 8 to expand and contract; the through groove part 5 of the movable jib shelf 2 is connected to the support frame 4 through the middle telescopic sleeve rod 8. The two ends of the side push-pull device 9 are respectively connected to the connecting plates at the top end and the bottom end of the middle telescopic sleeve rod 8. The side push-pull devices 9 are arranged in a pair on both sides of the middle telescopic sleeve rod 8, and the side push-pull device 9 is preferably a hydraulic cylinder.

[0022] The above are only the preferred embodiments of the present invention. It should be pointed out that: for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A boom support stabilization system for a marine hydraulic slewing crane, characterized in that: The invention relates to a boom rack supporting a boom (11) of a hydraulic slewing crane, wherein the boom rack comprises a fixed boom rack (1) and a movable boom rack (2), wherein the fixed boom rack (1) corresponds to the arm head portion of the boom (11), and the movable boom rack (2) corresponds to the arm body portion of the boom (11), wherein the fixed boom rack (1) and the movable boom rack (2) jointly support the boom (11) to form a boom double-support stable structure, and the movable boom rack (2) can be displaced along the arm length direction of the boom (11) to adjust the distance between two supporting points of the boom double-support stable structure.

2. The boom support stabilization system of a marine hydraulic slewing crane according to claim 1, characterized in that: The movable boom shelf (2) can be raised and lowered; When the movable boom rack (2) is in a state of rising to support the boom (11), it forms a boom double-support stable structure with the fixed boom rack (1); When the movable boom shelf (2) is lowered and separated from the boom (11), the fixed boom shelf (1) independently supports the boom (11) to form a single-bracing stable structure of the boom; The double-support stabilizing structure of the boom and the single-support stabilizing structure of the boom achieve structural conversion through the raising and lowering adjustment of the movable boom shelf (2).

3. The boom support stabilization system of a marine hydraulic slewing crane according to claim 2, characterized in that: The boom shelf comprises a support frame (4), the top of the support frame (4) is provided with a through groove portion (5) in which the boom (11) is embedded, the bottom of the support frame is provided with a stabilizing foot (6), and an oblique support rod (7) is connected to the support frame (4) at an angle, and the support frame (4) and the oblique support rod (7) form a triangular stabilizing structure.

4. The boom support stabilization system of a marine hydraulic slewing crane according to claim 3, characterized in that: It comprises a displacement driving part (3) corresponding to the movable boom shelf (2), and the displacement driving part (3) drives the movable boom shelf (2) to move in translation.

5. The boom support stabilization system of a marine hydraulic slewing crane according to claim 3, characterized in that: A lifting drive mechanism is connected between the support frame (4) and the through-slot portion (5) of the movable boom shelf (2), and the lifting drive mechanism drives the through-slot portion (5) of the movable boom shelf (2) to move vertically.

6. The boom support stabilization system of a marine hydraulic slewing crane according to claim 5, characterized in that: The lifting drive mechanism comprises a middle telescopic sleeve rod (8) and a side push-pull device (9) for driving the middle telescopic sleeve rod (8) to extend and retract; the through slot portion (5) of the movable boom shelf (2) is connected to the support frame (4) through the middle telescopic sleeve rod (8), and the two ends of the side push-pull device (9) are respectively connected to the connecting plates at the top and bottom ends of the middle telescopic sleeve rod (8).

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