CN201574053U

CN201574053U - Bottle-neck marine crane

Info

Publication number: CN201574053U
Application number: CN2009201649659U
Authority: CN
Inventors: 玉誉斌; 黄军付; 王义勇; 徐阳
Original assignee: South China Marine Machinery Co Ltd
Current assignee: South China Marine Machinery Co Ltd
Priority date: 2009-12-16
Filing date: 2009-12-16
Publication date: 2010-09-08
Anticipated expiration: 2019-12-16

Abstract

The utility model relates to a crane working under marine condition. The bottle-neck marine crane includes a base stand column 1, a revolving platform 2 mounted on the base stand column 1, a hoisting arm 3, an A-shaped rack 4, a hoisting mechanism 5, a luffing mechanism 6, a revolving mechanism 7, a hydraulic system 8, and an electric control system 9, and is characterized in that the hoisting arm 3 is connected with the revolving platform 2 through a rotating shaft 20, the A-shaped rack 4 is connected with the revolving platform 2 through a pin shaft 21, a motion mechanism and a power assembly 22 are integrated with the revolving platform 2, and the revolving platform 2 is mounted on the base stand column 1 through a bearing 17 and an external gear pair 1. The crane has the advantages of reasonable structure, small volume, strong wind resistance, shock resistance, higher safety, large load of lifting work, and stable operation, and is suitable to operate under 6-7 stage marine conditions and severe working environment.

Description

Bottleneck formula ocean hoisting crane

One, technical field:

The utility model relates to a kind of hoisting crane, particularly a kind of hoisting crane of operation under open ocean.

Two, background technology:

At present, the capsizing moment that revolving superstructure produced and the power of traditional ocean hoisting crane are all born by pivoting support, rotating part is connected by pivoting support with non-rotating part, tie bolt is the core force transmission element, and bolt and pivoting support are out of joint, and whole hoisting crane can topple.

If the axial force that revolving superstructure produces of hoisting crane is born by a thrust baring, all diametral loads are born by two radial bearings simultaneously, bearing carrier ring is contained on two positions of a pedestal column that is fixed on the deck, hoisting crane revolving superstructure and bearing are connected as a single entity, being equivalent to the hoisting crane revolving superstructure is sleeved on the vertical shaft and rotation, such hoisting crane risk of toppling will reduce greatly, shaft strength is clear, single shaft strength is little, bearing size is little, life-span is long, safeguards and changes easily.

Three, summary of the invention:

The purpose of this utility model be to provide a kind of structure more rationally, little, the anti-high wind of volume, impact resistance and safety be stronger, the lifting work load is big, operate steadily, be fit to the ocean that sea situation reaches the 6-7 level, the ocean hoisting crane of operation under the special bad working environment.

Bottleneck formula of the present utility model ocean hoisting crane comprises the pedestal column, is installed in the turn table on the pedestal column, arm, A cabinet frame, lifting mechanism, luffing mechanism, swing type mechanism, hydraulic efficiency pressure system, electric-control system, its feature is that arm connects with turn table by rotating shaft, the A cabinet frame is connected with turn table with bearing pin, and kinematic mechanism and power are formed and turn table fuses, and turn table is installed on the pedestal column by bearing, external tooth wheel set.

Because the revolving superstructure of such hoisting crane is sleeved on the pedestal column, being equivalent to the hoisting crane revolving superstructure is sleeved on the vertical shaft and rotation, axial force that hoisting crane produced and diametral load are born by a thrust baring and two radial bearings respectively, by two plain bearings, be delivered to the pedestal column, power transmission does not need by bolt, unless just the possibility that hoisting crane topples can appear in the fracture of pedestal column.

This bottleneck formula ocean hoisting crane has following advantage:

1. the revolving superstructure of hoisting crane is sleeved on the pedestal column, being equivalent to the hoisting crane revolving superstructure is sleeved on the vertical shaft and rotation, like this, the structure of hoisting crane is more reliable, the risk of toppling reduces greatly, impact resistance and safety are stronger, the lifting work load is big, operate steadily, be fit to the dark ocean that sea situation reaches the 6-7 level, operation under the special bad working environment.

2. all design bearing become removable branch body structure, and each detachables weight of bearing is no more than 20kg, and single shaft strength is little, and bearing size is little, and the life-span is long, safeguard behind the wear-out of a bearing and change easily.

3. bearing material is a kind of later-model material, the characteristics that have the intensity height, recovery of elasticity are good, lubricated maintenance is less demanding, wear-resistant, life-span is long

4. rotary system has the vibrationproof pooling feature.Combine with fluid control by machinery, this system reaches revolution, brake, vibration damping, pooling feature, adopt this technology after, the wearing and tearing that revolution brake will be more steadily, therefore gear produces significantly reduce, prolonged the life-span of bearing, the complete machine performance is greatly enhanced simultaneously.

5. fluid power system adopts closed fhdraulic system, has characteristics energy-conservation, that heating is little, impact is little, safe and reliable, the life-span is long, and all functions motion response is rapid, vibration reduction and cushioning.Advantages such as hydraulic efficiency pressure system and electric-control system be exploitation voluntarily all, has control precisely, and be energy-saving and cost-reducing.

Four, description of drawings:

Fig. 1 is the utility model bottleneck formula ocean crane structure scheme drawing front view;

Fig. 2 is the utility model bottleneck formula ocean crane structure scheme drawing birds-eye view;

Fig. 3 is the utility model bottleneck formula ocean crane structure scheme drawing left view;

Fig. 4 is the pedestal column of the utility model bottleneck formula ocean hoisting crane bearing set;

Fig. 5 is the bearing of the removable branch body structure of the utility model bottleneck formula ocean hoisting crane.

Five, the specific embodiment:

Structure below in conjunction with description of drawings the utility model bottleneck formula ocean hoisting crane:

This bottleneck formula ocean hoisting crane comprises pedestal column 1, turn table 2, arm 3, A cabinet frame 4 four big primary members; Also have lifting mechanism 5, luffing mechanism 6, swing type mechanism 7 three big movable parties; And 9 liang of big systems of hydraulic efficiency pressure system 8, electric-control system that power and operation are provided for movable parts.

The lifting mechanism 5 of this bottleneck formula ocean hoisting crane is made up of the winch 10 that hoists, pulley yoke 11, steel rope 12, suspension hook coaster 13 etc., is installed on the arm member 3;

Luffing mechanism 6 is made up of span winch 14, luffing pulley yoke 15, steel rope 16 etc., is installed on A cabinet frame 4 and arm 3 members;

Swing type mechanism 7 is made up of bearing 17, external tooth wheel set 18, rotary reducer 19 etc., is installed on pedestal column 1 and turn table 2 members.

Arm 3 connects with turn table 2 by rotating shaft 20; A cabinet frame 4 usefulness bearing pins 21 are connected with turn table 2; Turn table is installed on the pedestal column 1 by bearing 17, external tooth wheel set 18.All kinematic mechanisms and power composition 22 all fuse with turn table 2, and are sleeved on and move on the pedestal column 1, and all motions realize by fluid motor-driven.

The revolving superstructure of this bottleneck formula ocean hoisting crane, comprise turn table 2 structures and be installed in operating machine above it: promptly turn table 2, arm 3, A cabinet frame 4, lifting mechanism 5, luffing mechanism 6, swing type mechanism 7, hydraulic efficiency pressure system 8, electric-control system 9 all overlaps and is positioned on the pedestal column 1, is equivalent to the hoisting crane revolving superstructure and is installed on the vertical shaft and rotation, like this, the hoisting crane risk of toppling reduces greatly, shaft strength is clear, and single shaft strength is little, and bearing size is little, life-span is long, safeguards and changes easily.

Claims

1. bottleneck formula ocean hoisting crane, comprise pedestal column (1), be installed in the turn table (2) on the pedestal column (1), arm (3), A cabinet frame (4), lifting mechanism (5), luffing mechanism (6), swing type mechanism (7), hydraulic efficiency pressure system (8), electric-control system (9), its feature connects with turn table (2) by rotating shaft (20) at arm (3), A cabinet frame (4) is connected with turn table (2) with bearing pin (21), and kinematic mechanism and power are formed (22) and fused with turn table (2), and turn table is by bearing (17), external tooth wheel set (18) is installed on the pedestal column (1).

2. bottleneck formula according to claim 1 ocean hoisting crane is characterized in that:

Lifting mechanism (5) comprises the winch that hoists (10), pulley yoke (11), steel rope (12), suspension hook coaster (13), is installed on the arm member (3);

Luffing mechanism (6) comprises span winch (14), luffing pulley yoke (15), steel rope (16), is installed on A cabinet frame (4) and arm (3) member;

Swing type mechanism (7) comprises bearing (17), external tooth wheel set (18), rotary reducer (19), is installed on pedestal column (1) and turn table (2) member.