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Rotation limiting system and excavator
The invention relates to a rotation limiting device and discloses a rotation limiting system. The rotation limiting system comprises a limiting mechanism which is installed between an upper vehicle frame (1) and a lower vehicle frame (2), the upper vehicle frame (1), a rotation bearing (3) and the lower vehicle frame (2) are sequentially and coaxially connected, the limiting mechanism comprises two limiting switches (41) which are mounted on the lower surface of the upper vehicle frame (1) and a limiting plate (51) which is mounted on the upper surface of the lower vehicle frame (2); the two limiting switches (41) are located on the same circumference with the rotation center of the upper vehicle frame (1) as a circle center, downwards-inclined slopes (511) are formed at the two ends of the limiting plate (51) correspondingly so that impact on the limiting switches (41) can be relieved; and the invention further discloses an excavator. According to the rotation limiting system, the rotation angle can be accurately controlled, and the service life is long.
本发明涉及回转限位装置，公开了一种回转限位系统，包括安装在上车架(1)与下车架(2)之间的限位机构，所述上车架(1)、回转支承(3)以及所述下车架(2)依次同轴连接，所述限位机构包括安装在所述上车架(1)的下表面的两个限位开关(41)和安装于所述下车架(2)的上表面的限位板(51)；两个所述限位开关(41)位于以所述上车架(1)的回转中心为圆心的同一圆周上，所述限位板(51)的两端分别形成有向下倾斜的斜面(511)，以能够缓解对所述限位开关(41)的冲击。本发明还公开了一种挖掘机。本发明的回转限位系统不仅能够精确控制回转角度，而且，具有较长的使用寿命。
Rotation limiting system and excavator
The invention relates to a rotation limiting device and discloses a rotation limiting system. The rotation limiting system comprises a limiting mechanism which is installed between an upper vehicle frame (1) and a lower vehicle frame (2), the upper vehicle frame (1), a rotation bearing (3) and the lower vehicle frame (2) are sequentially and coaxially connected, the limiting mechanism comprises two limiting switches (41) which are mounted on the lower surface of the upper vehicle frame (1) and a limiting plate (51) which is mounted on the upper surface of the lower vehicle frame (2); the two limiting switches (41) are located on the same circumference with the rotation center of the upper vehicle frame (1) as a circle center, downwards-inclined slopes (511) are formed at the two ends of the limiting plate (51) correspondingly so that impact on the limiting switches (41) can be relieved; and the invention further discloses an excavator. According to the rotation limiting system, the rotation angle can be accurately controlled, and the service life is long.
本发明涉及回转限位装置，公开了一种回转限位系统，包括安装在上车架(1)与下车架(2)之间的限位机构，所述上车架(1)、回转支承(3)以及所述下车架(2)依次同轴连接，所述限位机构包括安装在所述上车架(1)的下表面的两个限位开关(41)和安装于所述下车架(2)的上表面的限位板(51)；两个所述限位开关(41)位于以所述上车架(1)的回转中心为圆心的同一圆周上，所述限位板(51)的两端分别形成有向下倾斜的斜面(511)，以能够缓解对所述限位开关(41)的冲击。本发明还公开了一种挖掘机。本发明的回转限位系统不仅能够精确控制回转角度，而且，具有较长的使用寿命。
Rotation limiting system and excavator
回转限位系统及挖掘机
GAO HAO (author) / LI YUEHUA (author) / CHEN HUABO (author) / JIANG ZHIQIU (author)
2020-09-08
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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