Mechanical quick-change device and engineering machinery: Fid-Bau Portal

Mechanical quick-change device and engineering machinery

CHEN JUNYIN / ZHAO GE / GAO ZHIGANG / YANG YUQIANG

The invention discloses a mechanical quick-change device and engineering machinery, and relates to the technical field of engineering machinery, the mechanical quick-change device comprises a first connecting piece, a second connecting piece, a middle connecting piece and a limiting assembly; a kidney-shaped hole and a first through notch are formed in the first connecting piece, and a second mounting hole and a second through notch are formed in the second connecting piece; the middle connecting piece is inserted into the waist-shaped hole and the second mounting hole; the first through notch is opposite to the second through notch, and a mounting channel allowing the limiting assembly to be inserted therein is formed between the first through notch and the second through notch; the limiting assembly comprises a first limiting piece and a second limiting piece; the first limiting piece and the second limiting piece can translate relative to each other; the limiting assembly can limit the distance between the first connecting piece and the second connecting piece after the first connecting piece and the second connecting piece reach the required positions, so that reliable connection of the quick-change device is guaranteed, the overall structure is simple, the self weight is light, and quick switching between the quick-change device and different operation accessories can be achieved.

本发明公开了一种机械式快换装置及工程机械，涉及工程机械技术领域，包括：第一连接件、第二连接件、中间连接件和限位组件；第一连接件上设有腰型孔和第一通槽口，第二连接件上设有第二安装孔和第二通槽口；中间连接件插入腰型孔和第二安装孔内；第一通槽口与第二通槽口相对，且两者之间形成能够容置限位组件插入的安装通道；限位组件包括第一限位件、第二限位件；第一限位件和第二限位件能够相对彼此发生平移；限位组件能够在第一连接件、第二连接件到达需求位置后，对第一连接件、第二连接件的距离进行限位，从而保证快换装置的连接可靠，整体结构简单，自重轻，能够实现快换装置与不同作业属具之间的快速切换。

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