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Super-lift apparatus and crane

A super-lifting device and crane technology, applied in cranes and other directions, can solve the problems such as affecting the performance of the boom, limiting the super-lifting device's super-function, increasing local stress, etc.

Inactive Publication Date: 2013-12-11
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the super function of the super lifting device is limited, and the super function cannot be exerted to the greatest extent. When the boom is hoisted, the main boom deflects greatly, and the large deformation will increase the local stress and affect the performance of the boom.

Method used

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  • Super-lift apparatus and crane
  • Super-lift apparatus and crane
  • Super-lift apparatus and crane

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] 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.

[0040] The basic idea of ​​the present invention is to design a super-lifting device, add an auxiliary device at the position of the super-lifting front pull point - a front pull point heightening device, form a triangular structure at the super-lift front pull point, improve the force, increase t...

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PUM

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Abstract

The invention discloses a super-lift apparatus and a crane. The super-life apparatus is disposed on the telescopic arm of the crane, and the super-lift apparatus comprises a super-lift main body, a front straining device, a rear straining device and a front-straining-point heightening device, wherein one end of the super-lift main body is hinged to the telescopic arm of the crane, the other end of the super-lift main body is connected with the two ends of the telescopic arm respectively via the rear straining device and the front straining device, and the connection part of the front straining device and the telescopic arm is provided with the front-straining-point heightening device. Therefore, the super-lift apparatus is capable of heightening a front straining point, so that the reaction torque of the super-life apparatus to a crane jib is increased, and thus the crane jib is reduced in deformation and improved in performance.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a super-lifting device and a crane provided with the super-lifting device. Background technique [0002] In order to meet the demand for large-tonnage hoisting, wheeled cranes continue to develop in the direction of large-scale. At the same time, in order to improve the load-bearing performance of the boom, a super-lifting device is usually installed on the crane. The super-lifting device is hinged in the middle of the telescopic boom of the crane and connected to both ends of the telescopic boom through front and rear tensioning devices. [0003] Although the existing super-lifting device can enhance the hoisting performance of the crane to a certain extent, the front pulling point of the existing super-lifting device generally only has one hanging point, and is composed of a super-lifting mast, a boom, and a front tensioning device. form a stable triangular structure. The...

Claims

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Application Information

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IPC IPC(8): B66C23/62B66C23/72B66C23/64
Inventor 姜成武查铂李礼
Owner SANY AUTOMOBILE HOISTING MACHINERY