Ocean equipment crane slewing bearing fixing device

Abstract

The utility model discloses a marine equipment crane slewing bearing fixing device in the technical field of slewing bearings, which comprises a slewing bearing inner ring, a slewing bearing outer ring and a mounting seat, a positioning groove is arranged on the mounting seat, a through hole is arranged on the slewing bearing inner ring, grooves are arranged at the upper end and the lower end of the through hole, and the positioning groove is arranged on the mounting seat. An arc-shaped mounting groove is formed in the middle of the through hole, a ball body is arranged in the arc-shaped mounting groove, a mounting hole is formed in the middle of the ball body, a limiting groove is formed in the middle of the mounting hole, a first positioning column is arranged in the mounting hole, and a second positioning column is arranged at the bottom of the first positioning column; the first positioning column and the second positioning column rotate through the ball body and are gradually vertical, the slewing bearing is installed on the installation base, the slewing bearing is positioned and installed, deviation is avoided, and the slewing bearing can be conveniently installed and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of slewing bearings, in particular to a fixing device for a slewing bearing of a marine equipment crane. Background Technique

[0002] A slewing bearing is a component used for the slewing motion of a crane and is an important part for connecting the upper and lower parts of the crane. For example, in the slewing bearing mounting seat of the lower frame of construction machinery disclosed in the Chinese patent document (Patent No.: CN201120228183.4), the assembly of the slewing bearing is made more convenient by welding the support ring. However, this method is not applicable to the installation of the slewing bearing of a marine equipment crane. The slewing bearing used in a marine equipment crane is large in weight and size, and generally the hoisting method is adopted for installation. However, during the hoisting installation process, the slewing bearing is prone to shaking and it is not easy to align and install the slewing bearing.

[0003] Therefore, we propose a fixing device for a slewing bearing of a marine equipment crane. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixing device for a slewing bearing of a marine equipment crane to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixing device for a slewing bearing of a marine equipment crane, including an inner slewing bearing ring, an outer slewing bearing ring and a mounting seat. A positioning groove is provided on the mounting seat, through holes are provided on the inner slewing bearing ring. Grooves are provided at both the upper and lower ends of the through hole, an arc-shaped mounting groove is provided in the middle of the through hole, a sphere is provided in the arc-shaped mounting groove, a mounting hole is provided in the middle of the sphere, a limiting groove is provided in the middle of the mounting hole, a first positioning post is provided in the mounting hole, a second positioning post is provided at the bottom of the first positioning post, a first positioning hole is provided at the bottom of the positioning groove, and a second positioning hole is provided at the bottom of the first positioning hole.

[0006] Preferably, the upper part of the first positioning post extends towards the side, and the extended part is matched with the limiting groove.

[0007] Preferably, a fixing groove is provided at the top of the first positioning post, and the fixing groove is set as a regular hexagon.

[0008] Preferably, the bottom of the first positioning post is chamfered, and the upper part of the positioning groove is chamfered.

[0009] Preferably, the bottom of the first positioning hole is chamfered.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: The first positioning post rotates through the sphere rotating in the arc-shaped installation groove, thereby adjusting the orientation of the bottom end of the second positioning post, so that the bottom end of the second positioning post is above the positioning groove. Control the swing bearing to move downward. The second positioning post moves into the positioning groove. As the swing bearing continues to move downward, the second positioning post will move into the second positioning hole through the first positioning hole. At this time, the first positioning post will move into the first positioning hole. After the end of the second positioning rod extends into the positioning groove, as the swing bearing moves downward, the first positioning post and the second positioning post rotate through the sphere and gradually become vertical. The swing bearing is installed on the mounting seat, and the swing bearing is positioned and installed without deviation, which is convenient for installing and fixing the swing bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the utility model;

[0012] Figure 2 is a sectional view of the utility model;

[0013] Figure 3 is a schematic structural diagram of the positioning mechanism of the utility model;

[0014] Figure 4 is an enlarged view of part A of the utility model.

[0015] In the figure: 1, inner ring of swing bearing; 2, outer ring of swing bearing; 3, mounting seat; 4, positioning groove; 5, through hole; 6, groove; 7, arc-shaped installation groove; 8, sphere; 9, installation hole; 10, limit groove; 11, first positioning post; 12, second positioning post; 13, first positioning hole; 14, second positioning hole; 15, fixing groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1-4, the utility model provides a technical solution: a fixing device for a slewing bearing of an ocean equipment crane, which includes a slewing bearing inner ring 1, a slewing bearing outer ring 2 and a mounting seat 3. A positioning groove 4 is provided on the mounting seat 3, and a through hole 5 is provided on the slewing bearing inner ring 1. Grooves 6 are provided at both the upper and lower ends of the through hole 5, and an arc-shaped mounting groove 7 is provided in the middle of the through hole 5. A sphere 8 is provided in the arc-shaped mounting groove 7. An installation hole 9 is provided in the middle of the sphere 8, a limiting groove 10 is provided in the middle of the installation hole 9, a first positioning column 11 is provided in the installation hole 9, a second positioning column 12 is provided at the bottom of the first positioning column 11, a first positioning hole 13 is provided at the bottom of the positioning groove 4, and a second positioning hole 14 is provided at the bottom of the first positioning hole 13. When hoisting and installing the slewing bearing, move the slewing bearing above the mounting seat 3 and slowly move it downward. When the second positioning column 12 is about to contact the mounting seat 3, stop the movement of the slewing bearing. Rotate the first positioning column 11. The first positioning column 11 rotates by rotating the sphere 8 in the arc-shaped mounting groove 7, so as to adjust the orientation of the bottom end of the second positioning column 12, so that the bottom end of the second positioning column 12 is above the positioning groove 4. Control the slewing bearing to move downward. The second positioning column 12 moves into the positioning groove 4. As the slewing bearing continues to move downward, the second positioning column 12 will move into the second positioning hole 14 through the first positioning hole 13. At this time, the first positioning column 11 will move into the first positioning hole 13. After the end of the second positioning rod 12 extends into the positioning groove 4, as the slewing bearing moves downward, the first positioning column 11 and the second positioning column 12 rotate through the sphere 8 and gradually become vertical. The slewing bearing is installed on the mounting seat 3, and the slewing bearing is positioned and installed without deviation.

[0018] Wherein, the upper part of the first positioning column 11 extends laterally, and the extended part is matched with the limiting groove 10. By matching the extended part of the first positioning column 11 with the limiting groove 10, the first positioning column 11 and the second positioning column 12 are limited;

[0019] A fixing groove 15 is provided at the top of the first positioning column 11. The fixing groove 15 is set as a regular hexagon, which is convenient for using an inner hexagon wrench to insert into the fixing groove 15 to rotate the first positioning column 11;

[0020] The bottom of the first positioning column 11 is chamfered, the upper part of the positioning groove 4 is chamfered, and the bottom of the first positioning hole 13 is chamfered so that the second positioning column 12 will not be stuck during the downward movement.

[0021] Working principle: Rotate the first positioning post 11. The first positioning post 11 rotates by rotating the sphere 8 in the arc-shaped mounting groove 7, thereby adjusting the orientation of the bottom end of the second positioning post 12 so that the bottom end of the second positioning post 12 is above the positioning groove 4. Control the swing bearing to move downward. The second positioning post 12 moves into the positioning groove 4. As the swing bearing continues to move downward, the second positioning post 12 will move into the second positioning hole 14 through the first positioning hole 13. At this time, the first positioning post 11 will move into the first positioning hole 13. After the end of the second positioning rod 12 extends into the positioning groove 4, as the swing bearing moves downward, the first positioning post 11 and the second positioning post 12 rotate through the sphere 8 and gradually become vertical. The swing bearing is installed on the mounting seat 3 for positioning installation without deviation.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slewing bearing fixing device for a marine equipment crane, comprising a slewing bearing inner ring (1), a slewing bearing outer ring (2) and a mounting seat (3), characterized in that: The mounting seat (3) is provided with a positioning groove (4), the slewing bearing inner ring (1) is provided with a through hole (5), the through hole (5) is provided with grooves (6) at both upper and lower ends, the through hole (5) is provided with an arc-shaped mounting groove (7) in the middle, a sphere (8) is provided in the arc-shaped mounting groove (7), a mounting hole (9) is provided in the middle of the sphere (8), a limiting groove (10) is provided in the middle of the mounting hole (9), a first positioning column (11) is provided in the mounting hole (9), a second positioning column (12) is provided at the bottom of the first positioning column (11), a first positioning hole (13) is provided at the bottom of the positioning groove (4), and a second positioning hole (14) is provided at the bottom of the first positioning hole (13).

2. The slewing bearing fixing device for a marine equipment crane according to claim 1, characterized in that: The upper portion of the first positioning column (11) extends sideways, and the extended portion cooperates with the limiting groove (10).

3. The slewing bearing fixing device for a marine equipment crane according to claim 1, characterized in that: A fixing groove (15) is provided on the top of the first positioning column (11), and the fixing groove (15) is arranged in a regular hexagon.

4. The slewing bearing fixing device for a marine equipment crane according to claim 1, characterized in that: The bottom of the first positioning column (11) is chamfered, and the upper part of the positioning groove (4) is chamfered.

5. The slewing bearing fixing device for a marine equipment crane according to claim 1, characterized in that: The bottom of the first positioning hole (13) is chamfered.

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