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Super Lifting Devices and Cranes

A technology for super-lifting devices and cranes, which is applied in the direction of cranes, etc., and can solve problems affecting the performance of the boom, limited super-efficiency of super-lifting devices, and increasing local stress

Inactive Publication Date: 2016-05-25
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 Lifting Devices and Cranes
  • Super Lifting Devices and Cranes
  • Super Lifting Devices and Cranes

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Experimental program
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Embodiment Construction

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0039] It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other if there is no conflict.

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

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PUM

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Abstract

The invention discloses a super-lifting device and a crane. The super-lifting device is installed on the telescopic arm of the crane. The super-lifting device comprises: a super-lifting body, a front tensioning device, a rear tensioning device, and a front pulling point heightening device ; Wherein, one end of the super-lifting body is hinged on the telescopic arm of the crane, and the other end of the super-lifting body is respectively connected to both ends of the telescopic arm through the rear tensioning device and the front tensioning device; The connection point of the front tensioning device and the telescopic arm is provided with the device for increasing the front tension point. Therefore, the present invention can increase the front pulling point, thereby increasing the reaction moment of the super-lifting device to the boom, so as to reduce the deformation of the boom and improve the performance of the boom.

Description

Technical field [0001] The invention relates to the field of engineering machinery, and 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 crane is usually equipped with a superlift device, which is hinged to the middle of the crane's telescopic boom, and is connected to both ends of the telescopic boom through a front and rear tensioning device. [0003] Although the existing super-lifting device can enhance the lifting performance of the crane to a certain extent, the front pull point of the existing super-lifting device generally has only one hanging point, which is composed of the super-lifting mast, the boom, and the front tensioning device. Form a stable triangular structure. Therefore, the super funct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/62B66C23/72B66C23/64
Inventor 姜成武查铂李礼
Owner SANY AUTOMOBILE HOISTING MACHINERY