An arc-shaped telescopic arm mechanism and a crane with the mechanism

A technology of telescopic mechanism and telescopic arm, which is applied in the field of crane and arc-shaped telescopic arm mechanism, which can solve the problems of large working space, occupation, and reduced work efficiency, so as to achieve the effect of increasing the working space and improving the stacking efficiency

CN106044590BActive Publication Date: 2017-12-22DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-12-22

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Abstract

The invention discloses an arc-shaped telescopic arm mechanism and a crane provided with the same. The arc-shaped telescopic arm mechanism provided by the invention comprises an arc-shaped first-stage arm and an arc-shaped second-stage arm which are embedded in sequence and can extend and retract relatively; moreover, a telescopic mechanism of the arc-shaped telescopic mechanism consists of a first-stage hydraulic cylinder and a second-stage hydraulic cylinder positioned in the arc-shaped first-stage arm and the arc-shaped second-stage arm, and an arc-shaped skid shoe which is embedded into the arc-shaped second-stage arm; when a first-stage hydraulic cylinder positioned in the arc-shaped first-stage arm extends out, the skid shoe positioned in the arc-shaped second-stage arm is driven to move, the skid shoe drives the second-stage hydraulic cylinder positioned in the arc-shaped second-stage arm to move, the two stages of hydraulic cylinders extend out at the same time, and the telescopic mechanism consisting of the first-stage hydraulic cylinder, the second-stage hydraulic cylinder and the skid shoe drives the arc-shaped second-stage arm to extend out. By adopting the arc-shaped telescopic arm mechanism provided by the invention, on-load extension and retraction of the arc-shaped telescopic arm mechanism can be realized, the operation range of the telescopic arm is expanded, the piling efficiency of a reach stacker is increased, and the workspace of the crane is enlarged effectively.
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Description

technical field

[0001] The invention belongs to the technical field of engineering machinery, and relates to an arc telescopic arm mechanism and a crane with the mechanism. Background technique

[0002] At present, the telescopic arm mechanism of the crane is mainly a linear telescopic arm mechanism (hereinafter referred to as the straight arm telescopic mechanism). Generally speaking, the straight arm telescopic mechanism of the multi-section arm is not allowed to be stretched under load.

[0003] On the one hand, for the straight arm telescopic mechanism with a pulley block and a hook at the jib head, it can basically meet the lifting requirements with a certain span, while for the straight arm telescopic mechanism with a spreader directly installed at the end jib end, it can be carried out with a certain span. When there is an obstacle in the hoisting operation of the crane and the heavy object, the hoisting is more difficult.

[0004] Such as figure 1 as shown, figure...

Examples

Embodiment Construction

[0023] The present invention will be further described below in conjunction with drawings and embodiments.

[0024] Such as figure 2 As shown, the preferred embodiment of the arc telescopic arm mechanism in the present invention is shown in the figure. The arc-shaped telescopic arm mechanism includes an arc-shaped primary arm 1, an arc-shaped secondary arm 2 nested in the arc-shaped primary arm 1, and an arc-shaped secondary arm 2 nested in the arc-shaped secondary arm 2. The slipper 3, the primary hydraulic cylinder 4 and the secondary hydraulic cylinder 5.

[0025] Among them, there are two pairs of pin shaft holes on the tail web of the arc-shaped first-stage arm 1, which are respectively used to fix the entire arc-shaped telescopic arm mechanism and the first-stage hydraulic cylinder 4, and the inner side of the arc-shaped first-stage arm 1 arm head is installed There are sliders. The arc-shaped secondary arm 2 is nested in the arc-shaped primary arm 1, and a slider is...