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Crane

A technology of cranes and racks, applied in the field of cranes, can solve the problems of low lifting efficiency, safety risks, inability to lift, and time-consuming, etc., to achieve high lifting efficiency, expand the workplace, and good safety effects

Inactive Publication Date: 2015-01-07
XIAN AERONAUTICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, with the wide application of cranes, there are more and more hoists in complex environments, including environments with uneven road surfaces, environments with many obstacles, and environments with limited height or limited movement. In these environments, the cranes either cannot be lifted due to safety issues, or it takes a lot of time to adjust the posture, etc. The lifting efficiency is low and there are certain safety risks

Method used

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  • Crane

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] as attached figure 1 Shown, a kind of crane is characterized in that: comprise lifting arm 1, driver's cab 2, frame 3 and running gear 4; Described lifting arm 1 comprises the rear boom 6 of rear end and the front boom 7 of front end; The arm 6 and the front boom 7 are connected by straight pins; the rear boom 6 is connected with the hydraulic rotating device 13 through the support base 5; the front boom 7 has a hydraulic telescopic rod that can be stretched forward and backward, and the front end of the rear boom A pulley is installed, below the pulley is a hook 8, and a pulley is installed on the hook 8; the front boom 7 and the hook 8 are connected by a wire rope wound on the pulley, and there is a pulley under the rear boom 6. The boom hydraulic lifting device 9, the other end of the boom hydraulic lifting device 9 is ...

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Abstract

The invention provides a crane, and belongs to the technical field of engineering machinery. The crane comprises a lifting arm, a driving cab, a machine frame and a walking device, wherein the crane is provided with a push shovel which can level an uneven ground and provide a horizontal support to the crane through stable standing of the crane; the lifting arm consists of multiple movable joints and a hydraulic device, up-and-down and front-and-back movement of a lifting hook can be achieved, the whole lifting arm sits on the rotating hydraulic device, and 360-degree rotation of the lifting arm can be achieved. The crane provided by the invention has a more flexible lifting position, can achieve safe lifting in a variety of complex environments, and has high lifting efficiency and good security.

Description

technical field [0001] The invention relates to a crane and belongs to the technical field of engineering machinery. Background technique [0002] A crane refers to a multi-action hoisting machine that lifts vertically and carries heavy objects horizontally within a certain range. Also known as a crane. It belongs to material handling machinery. The working characteristic of the crane is to do intermittent movement, that is, the corresponding mechanisms for the actions of retrieving, moving, and unloading in a working cycle work alternately. The development and use of cranes in the market are becoming more and more extensive. [0003] At present, cranes generally include four load-bearing legs arranged at the four corners of the vehicle frame. When the crane is performing lifting operations, the four load-bearing legs are stretched out to bear the weight of the entire car body and the weight of lifting heavy objects. . In addition, the lifting mechanism of the crane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/62B66C13/54
CPCB66C23/68B66C13/54B66C23/62
Inventor 王栋
Owner XIAN AERONAUTICAL UNIV
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