起重臂臂头连接结构及起重机

By designing a rotatable boom head connection structure and a ratchet mechanism, the problem of difficulty in adjusting the lifting point position of telescopic boom cranes in complex environments has been solved, enabling flexible lifting, improving equipment reliability, and reducing equipment maintenance costs.

CN117208789BActive Publication Date: 2026-07-17HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD
Filing Date
2023-09-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing telescopic boom cranes have difficulty in flexibly adjusting the lifting point position in complex factory environments, and the possibility of adjusting the lifting point position is low, which increases the difficulty of lifting.

Method used

A boom head connection structure for cranes was designed, including a boom body, a boom head, a first drive device, a ratchet mechanism, and a second drive device. The boom head can be rotated at any angle and automatically locked through the cooperation of the ratchet and pawl. Combined with the mechanical transmission structure, stepless angle adjustment is achieved, thereby enhancing the load-bearing capacity.

Benefits of technology

It enables flexible adjustment of lifting point positions in narrow spaces, expands the lifting range, reduces lifting difficulty, improves the load-bearing capacity of the boom head, extends equipment service life, reduces maintenance costs, and is simple and practical to operate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117208789B_ABST
    Figure CN117208789B_ABST
Patent Text Reader

Abstract

本发明涉及起重机领域,提供一种起重臂臂头连接结构及起重机,包括:臂架主体;臂头,铰接于臂架主体自由端;第一驱动装置,用于驱动臂头绕臂架主体转动;棘轮机构,包括棘轮和棘爪,棘轮设置于臂头上且与臂头同步转动,棘爪转动设置于臂架主体端部,且用于在臂头承重时锁定棘轮以阻止臂头转动下落;第二驱动装置,用于驱动棘爪与棘轮分离或啮合。如此设置,臂头可绕臂架主体端部进行任意角度转动,根据狭窄空间灵活调整臂头角度,改变主臂吊载幅度半径,扩大吊载范围,满足狭小吊装场景的应用需求。且通过棘轮机构可匹配臂头转动角度,实现任意角度自动锁止,防止臂头因承重而下落,改善第一驱动装置受力情况,增强臂头承载能力。
Need to check novelty before this filing date? Find Prior Art