A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Movable arm front fork, movable arm and excavator
The invention relates to the technical field of excavators, and discloses a movable arm front fork, a movable arm and an excavator, the movable arm front fork comprises a bent plate, front fork plates are arranged on the two sides of the bent plate, first round holes are formed in the ends, away from the bent plate, of the front fork plates, inner flitch plates are arranged on the inner sides of the front fork plates, and the inner flitch plates are kidney-shaped; the inner flitch plate is kidney-shaped, the distance between the rear end of the inner flitch plate and the bent plate is reduced, the stress on the root of the fillet weld of the inner flitch plate is reduced, and the longitudinal stress during working is reduced, so that the problems that the stress on the root of the fillet weld of the inner flitch plate is concentrated, the root crack is easy to generate, and even the fillet weld is completely broken are solved.
本发明涉及挖掘机技术领域，公开了一种动臂前叉、动臂及挖掘机，包括弯板，弯板两侧设有前叉板，前叉板远离弯板一端设有第一圆孔，前叉板内侧设有内贴板，所述内贴板形状为腰形；本发明通过将内贴板形状为腰形，内贴板后端与弯板之间的距离减小，内贴板角焊缝根部受力变小，减小了工作时的纵向应力，从而解决了内贴板角焊缝根部应力集中，根部裂纹容易产生、甚至完全断裂的问题。
Movable arm front fork, movable arm and excavator
The invention relates to the technical field of excavators, and discloses a movable arm front fork, a movable arm and an excavator, the movable arm front fork comprises a bent plate, front fork plates are arranged on the two sides of the bent plate, first round holes are formed in the ends, away from the bent plate, of the front fork plates, inner flitch plates are arranged on the inner sides of the front fork plates, and the inner flitch plates are kidney-shaped; the inner flitch plate is kidney-shaped, the distance between the rear end of the inner flitch plate and the bent plate is reduced, the stress on the root of the fillet weld of the inner flitch plate is reduced, and the longitudinal stress during working is reduced, so that the problems that the stress on the root of the fillet weld of the inner flitch plate is concentrated, the root crack is easy to generate, and even the fillet weld is completely broken are solved.
本发明涉及挖掘机技术领域，公开了一种动臂前叉、动臂及挖掘机，包括弯板，弯板两侧设有前叉板，前叉板远离弯板一端设有第一圆孔，前叉板内侧设有内贴板，所述内贴板形状为腰形；本发明通过将内贴板形状为腰形，内贴板后端与弯板之间的距离减小，内贴板角焊缝根部受力变小，减小了工作时的纵向应力，从而解决了内贴板角焊缝根部应力集中，根部裂纹容易产生、甚至完全断裂的问题。
Movable arm front fork, movable arm and excavator
一种动臂前叉、动臂及挖掘机
CHENG WENLI (author) / WANG ZHENGHANG (author) / LIU HAIDONG (author) / CHEN HONGQIAN (author)
2024-10-29
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
Excavator movable arm front fork axial movement and radial rotating prevention mechanism
| European Patent Office | 2015