crane

By setting up clearance space on the bottom platform of the crane and optimizing the guide pulley system, the interference problem between the superlift mast and the winch mechanism during the descent of the superlift mast was solved, enabling ground maintenance of the superlift mast, reducing safety risks and improving maintenance efficiency.

CN122403306APending Publication Date: 2026-07-17ZHEJIANG SANY EQUIPMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG SANY EQUIPMENT CO LTD
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the super-lift mast is prone to interference with the winch mechanism of the crane's bottom platform during descent, making it impossible to lower to a lower angle and increasing the safety risks of high-altitude maintenance.

Method used

Design a crane that, by setting clearance space on the bottom platform, ensures that the boom of the super-lift mast does not interfere with the winch mechanism, achieves parallel operation of the boom and bottom platform in the second working condition, allows the super-lift mast to be lowered to 0°, and optimizes the layout of the connecting ropes through guide pulley blocks to reduce interference.

Benefits of technology

This technology enables maintenance of the mast from the ground, reducing the safety risks of working at heights and improving the safety and efficiency of maintenance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122403306A_ABST
    Figure CN122403306A_ABST
Patent Text Reader

Abstract

本发明涉及一种起重机,该起重机包括起重机本体和超起桅杆,起重机本体包括底部平台和卷扬机构,卷扬机构设置在底部平台上;超起桅杆包括两个臂架和连接臂,两个臂架相互平行布置且均转动连接于底部平台,连接臂的两端分别连接于两个臂架,两个臂架、连接臂以及底部平台共同围成避让空间;该起重机包括第一工况和第二工况,在第一工况,两个臂架的延伸方向与底部平台呈角度布置;在第二工况,臂架的延伸方向与底部平台平行,卷扬机构位于避让空间内,该起重机能够使得超起桅杆能够低趴到更低的交底,以减少超起桅杆检修作业的安全风险。
Need to check novelty before this filing date? Find Prior Art