CN201458603U

CN201458603U - Folding mechanism of lifting arm

Info

Publication number: CN201458603U
Application number: CN2009200923478U
Authority: CN
Inventors: 汪朝虹; 李文; 陶若奇
Original assignee: 713th Research Institute of China Shipbuilding Industry Corp
Current assignee: 713th Research Institute of China Shipbuilding Industry Corp
Priority date: 2009-08-12
Filing date: 2009-08-12
Publication date: 2010-05-12
Anticipated expiration: 2019-08-12

Abstract

The utility model discloses a folding mechanism of a lifting arm, comprising a telescopic arm, a folding arm and a rotating platform, wherein the telescopic arm is hinged with the folding arm which is hinged with the rotating platform. The folding mechanism also comprises a folding cylinder and a variable amplitude cylinder; one end of the folding cylinder is hinged with the telescopic arm, and the other end thereof is hinged with the folding arm; and one end of the variable amplitude cylinder is hinged with the folding arm and the other end thereof is hinged with the rotating platform. By adopting the technical scheme, the folding mechanism adds the folding cylinder and the variable amplitude cylinder on the basis of the original lifting arm so as to lead the telescopic arm and the folding arm in a lifting arm group to be capable of being unfolded and contracted, thus solving the problem that the storage space of the crane arranged on a ship-borne missile launching device is narrow, and the operation range is large when the crane is unfolded for work.

Description

The crane arm fold mechanism

Technical field

The utility model belongs to ship-based missile filling device equipment, specifically relates to a kind of crane arm folding device that is applicable to that small space is arranged.

Background technology

The filling of ship-based missile mainly is to be undertaken by the harbour lifting appliance at present, but can't carry out the sea filling.Along with the development of missile vertical launcher, the bullet-loading capacity of naval vessels is increasing, and in order to improve its expeditionary warfare ability, the reply saturation attack improves its own existence ability, realizes that marine rapid recharge and filling are the problems that must solve.

The arm group only flexible mostly of existing hoisting crane, or only can side-foldable.Such mode claimed structure space is bigger, is not suitable in the small space to use.

Summary of the invention

The purpose of this utility model provides a kind of small space that is applicable to and arranges, has the fold mechanism in the stealthy requirement filling crane arm.

For achieving the above object, the utility model is by the following technical solutions:

The utility model comprises telescopic boom, folding arm and turntable, and wherein, telescopic boom and folding arm are hinged, and folding arm and turntable are hinged, and in addition, it also comprises folding oil cylinder and amplitude oil cylinder; Above-mentioned folding oil cylinder one end and telescopic boom are hinged, and the other end and folding arm are hinged; Above-mentioned amplitude oil cylinder one end and folding arm are hinged, and the other end and turntable are hinged.

Above-mentioned turntable is fixed on the pivoting support.

Adopt the utility model of technique scheme, on the basis of original crane arm, folding oil cylinder and amplitude oil cylinder have been increased, make telescopic boom and folding arm in the crane arm group to launch and to shrink, thereby solved ship-based missile feedway filling hoisting crane small space and stored the big problem of work evolutionary operation scope.

Description of drawings

Fig. 1 is an integral structure scheme drawing of the present utility model.

The specific embodiment

As shown in Figure 1, the utility model comprises telescopic boom 3, folding arm 2 and turntable 5, and wherein, telescopic boom 3 is hinged by hinge I 1 with folding arm 2, and folding arm 2 is hinged by hinge II 10 with turntable 5.Be expansion and the contraction that realizes whole crane arm, so increased folding oil cylinder 4 and amplitude oil cylinder 6.Wherein folding oil cylinder 4 one ends and telescopic boom 3 are hinged by hinge III7, and the other end and folding arm 2 are hinged by hinge IV8.In addition, amplitude oil cylinder 6 one ends and folding arm 2 are hinged by hinge V9, and the other end is hinged by hinge VI11 and turntable 5.Like this, their integral body has been formed a six-bar mechanism, thereby can realize the expansion and the contraction of crane arm beam.

It is pointed out that turntable 5 is fixed on the pivoting support.

Principle of work of the present utility model is:

When needs launched, folding oil cylinder 4 piston rods stretched out, and promoted telescopic boom 3 around hinge I 1 rotation, and amplitude oil cylinder 6 piston rods stretch out the folding arm 2 of promotion and rotate around hinge II 10, realize the expansion of crane arm group.When the crane arm group was in deployed condition, the piston rod counteragent of folding oil cylinder 4 and amplitude oil cylinder 6 can be realized the folding contraction of crane arm group.

Claims

1. crane arm fold mechanism, it comprises telescopic boom (3), folding arm (2) and turntable (5), described telescopic boom (3) is hinged with folding arm (2), and folding arm (2) is hinged with turntable (5), and it is characterized in that: it also comprises folding oil cylinder (4) and amplitude oil cylinder (6); Described folding oil cylinder (4) one ends and telescopic boom (3) are hinged, and the other end and folding arm (2) are hinged; Described amplitude oil cylinder (6) one ends and folding arm (2) are hinged, and the other end and turntable (5) are hinged.

2. crane arm fold mechanism according to claim 1 is characterized in that: described turntable (5) is fixed on the pivoting support.