A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Safe, stable and wear-resistant excavator bucket tooth
The invention discloses a safe, stable and wear-resistant excavator bucket tooth which comprises a tooth holder, the tooth holder is welded to a bucket, a connecting block is fixed to the tooth holder, the connecting block is sleeved with a bucket tooth head in a sliding mode, a cavity is formed in the connecting block, a locking device is installed on the cavity, and the locking device comprises two supporting blocks fixedly connected with the tooth holder. A worm is rotationally connected between the two supporting blocks. Through mutual cooperation of all the components, the friction angle of the worm is smaller than the lead angle of the worm, self-locking is formed, loosening of the first plug pin and the second plug pin caused by vibration impact of the bucket tooth head in the working process of the excavator is avoided, meanwhile, through staggered distribution of the first plug hole and the second plug hole, the vibration impact of the first plug pin and the second plug pin can be changed during positive and negative impact of the bucket tooth head, and the service life of the excavator is prolonged. The hinge pin is simple in structure and different in maximum stress point, the problems that abrasion is aggravated and the service life is shortened under the long-term impact effect due to the fact that a traditional hinge pin at the same fixed position is single in stress point are solved, and meanwhile dismounting and mounting are convenient.
本发明公开了一种安全稳定耐磨型挖掘机斗齿，包括齿座，齿座焊接在铲斗上，所述齿座上固定有连接块，所述连接块外滑动套接有斗齿头，所述连接块内设有空腔，空腔上安装有锁紧装置，所述锁紧装置包括两个与齿座固定连接的支撑块，两个所述支撑块之间转动连接有蜗杆。本发明通过各个部件之间的相互协作，蜗杆的摩擦角小于蜗杆的螺旋升角，形成自锁，避免挖掘机工作的过程中，斗齿头的震动冲击导致第一插销和第二插销的松动，同时通过第一插孔和第二插孔的错位分布，能够改变斗齿头正反冲击时，最大受力点的不同，避免传统同一固定位置的销轴，受力点单一，导致长期的冲击作用下，磨损加剧，使用寿命降低的问题，同时方便拆卸和安装。
Safe, stable and wear-resistant excavator bucket tooth
The invention discloses a safe, stable and wear-resistant excavator bucket tooth which comprises a tooth holder, the tooth holder is welded to a bucket, a connecting block is fixed to the tooth holder, the connecting block is sleeved with a bucket tooth head in a sliding mode, a cavity is formed in the connecting block, a locking device is installed on the cavity, and the locking device comprises two supporting blocks fixedly connected with the tooth holder. A worm is rotationally connected between the two supporting blocks. Through mutual cooperation of all the components, the friction angle of the worm is smaller than the lead angle of the worm, self-locking is formed, loosening of the first plug pin and the second plug pin caused by vibration impact of the bucket tooth head in the working process of the excavator is avoided, meanwhile, through staggered distribution of the first plug hole and the second plug hole, the vibration impact of the first plug pin and the second plug pin can be changed during positive and negative impact of the bucket tooth head, and the service life of the excavator is prolonged. The hinge pin is simple in structure and different in maximum stress point, the problems that abrasion is aggravated and the service life is shortened under the long-term impact effect due to the fact that a traditional hinge pin at the same fixed position is single in stress point are solved, and meanwhile dismounting and mounting are convenient.
本发明公开了一种安全稳定耐磨型挖掘机斗齿，包括齿座，齿座焊接在铲斗上，所述齿座上固定有连接块，所述连接块外滑动套接有斗齿头，所述连接块内设有空腔，空腔上安装有锁紧装置，所述锁紧装置包括两个与齿座固定连接的支撑块，两个所述支撑块之间转动连接有蜗杆。本发明通过各个部件之间的相互协作，蜗杆的摩擦角小于蜗杆的螺旋升角，形成自锁，避免挖掘机工作的过程中，斗齿头的震动冲击导致第一插销和第二插销的松动，同时通过第一插孔和第二插孔的错位分布，能够改变斗齿头正反冲击时，最大受力点的不同，避免传统同一固定位置的销轴，受力点单一，导致长期的冲击作用下，磨损加剧，使用寿命降低的问题，同时方便拆卸和安装。
Safe, stable and wear-resistant excavator bucket tooth
一种安全稳定耐磨型挖掘机斗齿
WANG DEFA (author) / CHEN ZHIYONG (author) / WANG YINQUAN (author) / WEI JI (author) / XU GUANGQING (author) / CHEN YOUMEI (author) / XU HUAWEI (author)
2022-09-16
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
Bucket mechanism with wear-resistant bucket tooth structure and excavator
| European Patent Office | 2020