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a crane

A technology of cranes and shaft holes, which is applied in the direction of cranes, etc., to achieve the effects of convenient installation, high economic value, and reduced labor intensity

Active Publication Date: 2017-03-01
ZHEJIANG SANY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention proposes a crane to solve the problem of conveniently and quickly realizing the self-loading and unloading of the jib

Method used

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] Combine below Figure 1 to Figure 6 , the preferred embodiment of the present invention will be described in further detail. The crane in this preferred embodiment includes a crane body 1 and a lower section arm 2. The lower section arm 2 is connected to the crane body 1. A self-loading and unloading oil cylinder for lifting is installed on the upper end of the lower section arm 2. 3, the jacking adjusting device 5 for fixing the self-loading and unloading oil cylinder 3 is installed at the lower end of the lower section arm 2 (such as figure 1 shown). The jacking adjustment device 5 is used to lift the self-loading and unloading oil cylinder 3 upwards to improve the vertical height of t...

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Abstract

The invention discloses a crane, which comprises a crane body and a lower arm. The lower arm is connected to the crane body. A jacking adjustment device for lifting a self-loading and unloading oil cylinder is installed on the upper end of the lower arm. Jacking fixture for loading and unloading cylinders. According to different boom height requirements, the present invention can quickly and conveniently realize the jacking of the self-loading and unloading oil cylinder of the boom, and then change the vertical height of the oil cylinder when self-loading and unloading the boom. Under the premise of meeting the height of domestic and foreign transport vehicles, there is no need to use auxiliary cranes, and the structural characteristics of the jib itself can automatically increase the height of the lifting point, eliminating the need for rental costs caused by the use of auxiliary cranes, reducing labor intensity and facilitating user installation. Create the greatest economic value for users.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a crane. Background technique [0002] The self-loading and unloading function is set up to meet the assembly and disassembly of the crawler frame, boom, counterweight and other components of the crawler crane. With the rapid development of the economy, higher requirements are put forward for the self-loading and unloading function of the crawler crane. It is an important part of the arm and has a great influence on the disassembly efficiency of the whole machine. [0003] At present, crawler cranes that generally require efficient disassembly and assembly functions are equipped with a self-loading and unloading device for the lower section of the arm. The self-loading and unloading oil cylinder is fixed on the lower section of the arm through a pin shaft. When loading and unloading parts such as the self-loading and unloading oil cylinder of the lower boom, the height of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/36B66C23/62
Inventor 曹智钦曹丽娟邹毅
Owner ZHEJIANG SANY EQUIP
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