CN203624875U

CN203624875U - Portal crane with rotating mechanism

Info

Publication number: CN203624875U
Application number: CN201320666995.6U
Authority: CN
Inventors: 干卓君
Original assignee: Ningbo Jessn Ocean Development Co Ltd
Current assignee: Jessn Marine Equipment Co ltd; Victory Marine Equipment Co ltd
Priority date: 2013-10-28
Filing date: 2013-10-28
Publication date: 2014-06-04
Anticipated expiration: 2023-10-28

Abstract

The utility model discloses a portal crane with a rotating mechanism. The portal crane comprises at least two hoisting structures, wherein each hoisting structure comprises a base, a first mechanical arm is arranged on the base in a rotational connection manner, a second mechanical arm is rotationally connected to the upper end of the first mechanical arm, the other end of the second mechanical arm is rotationally connected with a third mechanical arm, the third mechanical arm and a fourth mechanical arm are rotationally connected, a first hydraulic cylinder is connected between the first mechanical arm and the second mechanical arm, a second hydraulic cylinder is connected between the second mechanical arm and the third mechanical arm, and a plurality of hooks are arranged on the fourth mechanism arm. The portal crane works stably, multiple instruments can be placed into water for detection, the fourth mechanical arm and the third mechanical arm are rotationally connected, and the base is rotationally connected with the first mechanical arm, so that the crane still can adjust the direction through rotation, the detection range is expanded and thus the detection error is small.

Description

A kind of door type crane with rotating mechanism

Technical field

The utility model relates to marine machinery technical field, specifically a kind of door type crane with rotating mechanism, the equipment of using for lifting cargo on boats and ships.

Background technology

Crane claims again loop wheel machine peculiar to vessel, deck crane, it is the large deck machinery of one on ship, it is a kind of equipment of ship loading and unloading goods, crane is a kind of cargo handling appliance generally using on boats and ships, because the sea is rough, for the general crane of bearing surface that reduces wind is all single arm type, and general crane only has a folding arm.On scientific investigation ship, crane is for putting into water by various detecting instruments, and one is only had a folding arm instrument can not be put very low, therefore can not be satisfied with on scientific investigation ship and use, and the general all smaller cranes of scientific investigation ship can not have the very large wind area that holds.Can multiple instruments be put into water in order to make crane simultaneously.

The applicant improves into traditional crane the crane of a type, comprise at least two lifting structures, described lifting structure comprises base, on described base, be provided with the first mechanical arm upper end described in the first mechanical arm and be connected with the second mechanical arm, the described second mechanical arm other end is rotatably connected to three-mechanical arm, described three-mechanical arm and described the second mechanical arm are hinged from the side, described three-mechanical arm is all connected with the 4th mechanical arm, between described the first mechanical arm and described the second mechanical arm, be connected with the first hydraulic actuating cylinder, between described the second mechanical arm and described three-mechanical arm, be connected with the second hydraulic actuating cylinder, on described the 4th mechanical arm, be provided with some hooks.Adopt and can make in this way crane multiple instruments to be put into water to detect simultaneously, but because the crane of script single armed can rotate, the scope of detection is large, and the detection range of gate-type is relatively little, the error of measurement is just larger.

Summary of the invention

The utility model, for prior art deficiency, provides a kind of door type crane with rotating mechanism, and this door type crane can increase by rotation the detection range of instrument, reduces the detection error of instrument.

In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of door type crane with rotating mechanism, comprise at least two lifting structures, described lifting structure comprises base, on described base, be provided with the first mechanical arm, described the first mechanical arm and described base are rotationally connected, described the first mechanical arm upper end is rotatably connected to the second mechanical arm, the described second mechanical arm other end is rotatably connected to three-mechanical arm, described three-mechanical arm is all rotationally connected with the 4th mechanical arm, between described the first mechanical arm and described the second mechanical arm, be connected with the first hydraulic actuating cylinder, between described the second mechanical arm and described three-mechanical arm, be connected with the second hydraulic actuating cylinder, on described the 4th mechanical arm, be provided with some hooks.This door type crane is more stable in the time of work, not only can multiple instruments be put into water detects simultaneously, and the 4th mechanical arm and three-mechanical arm be rotationally connected, base and the first mechanical arm are rotationally connected, make crane still can rotate to regulate direction, expand detection range, thereby it is less to make to detect error.

The utility model compared with prior art, there is following beneficial effect: this door of the utility model type crane is more stable in the time of work, not only can multiple instruments be put into water detects simultaneously, and the 4th mechanical arm and three-mechanical arm be rotationally connected, base and the first mechanical arm are rotationally connected, make crane still can rotate to regulate direction, expand detection range, thereby it is less to make to detect error.

Accompanying drawing explanation

Fig. 1 is the utility model embodiment entirety front view.

Fig. 2 is the partial enlarged drawing in Fig. 1.

Fig. 3 is the utility model embodiment entirety birds-eye view.

Fig. 4 is the structural representation of flexible mechanical arm end.

Fig. 5 is the schematic diagram after folding of hoist mechanism.

The specific embodiment

Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail: referring to Fig. 1 to Fig. 5, a kind of door type crane with rotating mechanism, comprise two lifting structure a, two described lifting structure a comprise base 1, on described base 1, be provided with the first mechanical arm 2, described the first mechanical arm 2 is rotationally connected with described base 1, described the first mechanical arm 2 upper ends are rotatably connected to the second mechanical arm 3, described second mechanical arm 3 other ends are rotatably connected to three-mechanical arm 4, in order to hold wind area after reducing crane and drawing in, described three-mechanical arm 4 is hinged from the side with described the second mechanical arm 3.Instrument is put into the length in seawater and does not affect it hold wind area after gathering in order to increase crane, on described three-mechanical arm 4, comprise housing 41, in housing 41, be provided with flexible mechanical arm 42, form telescoping mechanism, in order to extend the service life of telescoping mechanism, described flexible mechanical arm 42 one end in described housing 41 is provided with boss 421, on described boss 421, be provided with some wear-resistant blocks 422, described boss 421 cross sections are square, 421 4 sides of described boss are provided with described wear-resistant block 422, the wear-resistant block 422 adopting in the present embodiment is nylon block.The other end of two flexible mechanical arms 42 is all connected with the 4th mechanical arm 5, forms door shape crane, and for a type crane can be rotated, described flexible mechanical arm 42 is and is rotationally connected with described the 4th mechanical arm 5.For operating personal when the crane operation can be seen the angle of three-mechanical arm 4 and horizontal surface, facilitate workman to operate, on described housing 41, be rotationally connected and be provided with pointer 43, described pointer 43 is subject to self gravitation effect to point to all the time direction straight down, on described housing 41, be also provided with calibrated disc 44, calibrated disc 44 subscripts are marked with scale, in the time of three-mechanical arm 4 level described in " 0 " scale on calibrated disc 44 described in pointed.

On described the 4th mechanical arm 5, be provided with three hooks 6, the crane of traditional single armed can only be hung an instrument and put into marine detection simultaneously, and this crane can be hung three instruments simultaneously and puts into marine detection.

In described base 1, being provided with HM Hydraulic Motor (not drawing on figure) controls described the first mechanical arm 2 and rotates, described the first mechanical arm 2 and described the second mechanical arm 3, described the second mechanical arm 3 and described three-mechanical arm 4 are all controlled rotation by hydraulic actuating cylinder, between described the first mechanical arm 2 and described the second mechanical arm 3, be connected with the first hydraulic actuating cylinder 71, between described the second mechanical arm 3 and described three-mechanical arm 4, be connected with the second hydraulic actuating cylinder 72, with on described housing 41, be provided with the 3rd hydraulic actuating cylinder 73, described the 3rd hydraulic actuating cylinder 73 one end connect the other end on described housing 41 and connect described flexible mechanical arm 42, control the flexible of flexible mechanical arm 42.

Claims

1. one kind has the door type crane of rotating mechanism, it is characterized in that: comprise at least two lifting structures (a), described lifting structure (a) comprises base (1), on described base (1), be provided with the first mechanical arm (2), described the first mechanical arm (2) is rotationally connected with described base (1), described the first mechanical arm (2) upper end is rotatably connected to the second mechanical arm (3), described the second mechanical arm (3) other end is rotatably connected to three-mechanical arm (4), described three-mechanical arm (4) is all rotationally connected with the 4th mechanical arm (5), between described the first mechanical arm (2) and described the second mechanical arm (3), be connected with the first hydraulic actuating cylinder (71), between described the second mechanical arm (3) and described three-mechanical arm (4), be connected with the second hydraulic actuating cylinder (72), on described the 4th mechanical arm (5), be provided with some hooks (6).