High-strength load-bearing cantilever crane for high-altitude operation

Abstract

The utility model relates to the technical field of arm supports, in particular to a high-strength load-bearing high-altitude operation arm support which comprises a rotary table and an arm support body rotationally arranged at the upper end of the rotary table, a rotating ring is rotationally arranged on the lower side of the outer side wall of the arm support body through a rolling bearing, a supporting frame is arranged outside the rotating ring, and an annular mounting plate is integrally formed at the lower end of the supporting frame. The annular mounting plate is fixedly connected with the top of the rotary table through a plurality of bolts, a plurality of vertical strip-shaped grooves are evenly formed in the inner side wall of the supporting frame, an auxiliary bearing mechanism is arranged between the strip-shaped grooves and the rotary ring, the auxiliary bearing mechanism comprises a sliding rod and two sliding blocks, the sliding rod is vertically and fixedly arranged in the strip-shaped grooves, and the two sliding blocks are arranged in the sliding rod. The two sliding blocks are symmetrically arranged on the two sides of the rod wall of the sliding rod in a sliding mode, and the sides, close to the arm frame, of the sliding blocks are hinged to supporting rods through movable connecting pieces. The cantilever crane is not easy to break away from the rotary table, potential safety hazards are eliminated, reliability is high, and the service life of the cantilever crane is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of arm support, specifically to high strength load bearing's arm support for aerial work. BACKGROUND

[0002] The arm support system is a supporting mechanism for aerial work, which can push the worker to the work point at a high place to smoothly realize the aerial work. In the arm support system, the rotary table is the bearing of the arm support system, that is, the rotation of the arm support in the process of aerial work is realized by the rotating mechanism on the rotary table. Therefore, the rotary table is the basis of the entire arm support system.

[0003] The marine crane is a special crane for performing transportation work in the marine environment, which is mainly used for the transportation and transfer of goods between ships, marine supply, and the launching and recovery of underwater work equipment.

[0004] In the prior art, the arm support system of the crane is often used on the ship. The aerial work arm support of the marine crane usually needs to bear a high strength. When the bearing strength is too high, the arm support may be broken and separated from the rotary table due to insufficient bearing strength, which brings safety hazards. Therefore, we provide a high strength load bearing's arm support for aerial work. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of high strength load bearing's arm support for aerial work, arm support is not prone to break and separate from rotary table, eliminate safety hazard, reliability is higher, prolong the service life of arm support, to solve the problem proposed in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of high strength load bearing's arm support for aerial work, including rotary table and the arm support rotationally arranged on the upper end of rotary table, the outer side wall lower side of the arm support is rotationally provided with rotating ring by rolling bearing, the rotating ring outside is equipped with support frame, the lower end of the support frame is integrally formed with annular mounting plate, the annular mounting plate is fixedly connected with the top of rotary table by a plurality of bolts, the inner side wall of the support frame is uniformly equipped with a plurality of vertical strip grooves, a plurality of the strip grooves are equipped with auxiliary load bearing mechanism between rotating ring.

[0008] Further, the auxiliary load bearing mechanism includes a slide rod and two sliding blocks, the slide rod is vertically fixedly arranged in the strip groove, the two sliding blocks are symmetrically slidably arranged on the rod wall of the slide rod, the side of the sliding block close to the arm support is hinged with support rod by movable connecting piece, the other end of the two support rods is hinged with the outer ring wall of rotating ring by the same movable connecting piece, the two sides of the slide rod are movably sleeved with spring.

[0009] Further, the spring is always in a compressed state.

[0010] Further, a plurality of triangular reinforcing ribs are integrally formed between the outer wall of the support frame and the annular mounting plate.

[0011] Further, a dustproof ring is fixedly arranged on the upper inner wall of the support frame, and the inner ring wall of the dustproof ring is arranged in abutment with the arm support side wall.

[0012] Further, the dustproof ring is a corrosion-resistant rubber ring.

[0013] Compared with the prior art, the high-strength load-bearing aerial work arm support has the following beneficial effects:

[0014] The high-strength load-bearing aerial work arm support comprises an arm support, a support frame, an annular mounting plate, bolts, a rotary table, triangular reinforcing ribs, a dustproof ring, a sliding rod, a sliding block, springs, a rotating ring and support rods. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of a high-strength load-bearing aerial work arm support.

[0016] Figure 2 It is a structural schematic view of a high-strength load-bearing aerial work arm support.

[0017] Figure 3 It is a structural schematic view of a high-strength load-bearing aerial work arm support. Figure 2 It is an enlarged schematic view of a part A.

[0018] In the figure: 1, arm support; 2, support frame; 3, annular mounting plate; 4, bolt; 5, rotary table; 6, triangular reinforcing rib; 7, dustproof ring; 8, sliding rod; 9, sliding block; 10, spring; 11, rotating ring; 12, support rod. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1 to 3 The present application provides a technical scheme:

[0021] The utility model provides a kind of high-strength load-bearing arm support for aerial work, including rotating platform 5 and the arm support 1 of rotation being arranged on rotating platform 5 upper end, the outer side wall lower side of arm support 1 is rotationally equipped with rotating ring 11, rotating ring 11 is fixed when arm support 1 rotates, rotating ring 11 is equipped with support frame 2 outside, support frame 2 lower end is integrally formed with annular mounting plate 3, and annular mounting plate 3 is fixedly connected with the top of rotating platform 5 by multiple bolts 4.

[0022] Support frame 2 inner wall is evenly equipped with multiple vertical strip grooves, and multiple strip grooves are equipped with auxiliary load-bearing mechanism between rotating ring 11, auxiliary load-bearing mechanism includes slide rod 8 and two sliding blocks 9, slide rod 8 is vertically fixed in strip groove, two sliding blocks 9 are symmetrically slidably arranged on the rod wall of slide rod 8, and the side of sliding block 9 close to arm support 1 is hinged with support rod 12 by movable connecting piece, and the other end of two support rods 12 is hinged with the outer ring wall of rotating ring 11 by same movable connecting piece, and spring 10 is movably sleeved on the both sides of slide rod 8, and spring 10 is always in compression state.

[0023] Support frame 2 outer wall and annular mounting plate 3 are integrally formed with multiple triangular reinforcing ribs 6 between them, multiple triangular reinforcing ribs 6 are arranged at equal intervals, and triangular reinforcing rib 6 improves the structural strength between support frame 2 and annular mounting plate 3.

[0024] Support frame 2 upper inner wall is fixedly provided with dustproof ring 7, and the inner ring wall of dustproof ring 7 is arranged against the side wall of arm support 1, dustproof ring 7 is corrosion-resistant rubber ring, and the corrosion-resistant effect of corrosion-resistant rubber ring is good, and it is not easy to be corroded by seawater, and dustproof ring 7 can effectively reduce dust into support frame 2.

[0025] When the arm support 1 bears high lateral strength, the arm support 1 pushes the rotating ring 11 to one side, the rotating ring 11 drives the sliding block 9 to slide on the slide rod 8 through the two supporting rods 12, the sliding block 9 extrudes the spring 10, the plurality of springs 10 provide high strength bearing for the arm support 1 through the sliding block 9 and the supporting rod 12, the triangular reinforcing rib 6 improves the structural strength between the supporting frame 2 and the annular mounting plate 3, the dustproof ring 7 is a corrosion-resistant rubber ring, the corrosion-resistant rubber ring has better corrosion-resistant effect and is not easy to be corroded by seawater, the dustproof ring 7 can effectively reduce dust from entering the supporting frame 2, the arm support 1 is not easy to be broken and separated from the rotating table 5, the safety hidden danger is eliminated, the reliability is higher, and the service life of the arm support 1 is prolonged.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength load-bearing jib for aerial work, comprising a rotating platform (5) and a jib (1) arranged to rotate at the upper end of the rotating platform (5), characterised in that: The lower side of the outer side wall of the arm support (1) is provided with a rotating ring (11) through a rolling bearing, the outer side of the rotating ring (11) is provided with a support frame (2), the lower end of the support frame (2) is integrally provided with an annular mounting plate (3), the annular mounting plate (3) is fixedly connected with the top of a rotating table (5) through a plurality of bolts (4), the inner side wall of the support frame (2) is uniformly provided with a plurality of vertical strip-shaped grooves, and an auxiliary load bearing mechanism is arranged between the strip-shaped grooves and the rotating ring (11).

2. A high-strength load-bearing jib for aerial work according to claim 1, characterized in that: The auxiliary load bearing mechanism comprises a sliding rod (8) and two sliding blocks (9), the sliding rod (8) is vertically fixedly arranged in the strip-shaped groove, the two sliding blocks (9) are symmetrically and slidingly arranged on the rod walls of the sliding rod (8), the sliding block (9) is hingedly provided with a support rod (12) on the side close to the arm support (1) through a movable connecting piece, the other ends of the two support rods (12) are hingedly connected with the outer ring wall of the rotating ring (11) through the same movable connecting piece, and the two sides of the sliding rod (8) are movably sleeved with springs (10).

3. A high-strength load-bearing jib for aerial work according to claim 2, characterized in that: The spring (10) is always in a compressed state.

4. The high-strength load-bearing jib for aerial work according to claim 1, characterized in that: A plurality of triangular reinforcing ribs (6) are integrally arranged between the outer side wall of the support frame (2) and the annular mounting plate (3), and the triangular reinforcing ribs (6) are arranged at equal intervals.

5. The high-strength load-bearing high-altitude work arm of claim 1, wherein: A dustproof ring (7) is fixedly arranged on the upper inner wall of the support frame (2), and the inner wall of the dustproof ring (7) is arranged in abutment with the side wall of the arm support (1).

6. A high-strength load-bearing jib for aerial work according to claim 5, characterized in that: The dustproof ring (7) is a corrosion-resistant rubber ring. The dustproof ring (7) is a corrosion-resistant rubber ring.

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