Bucket rod device, control method thereof and excavator

Abstract

The invention provides a bucket rod device, a control method thereof and an excavator, and belongs to the technical field of the excavator. The bucket rod device comprises a movable arm, wherein a first connection point, located at the connecting end of a bucket rod, of the movable arm is rotationally connected with the bucket rod, a connecting rod is rotationally connected to the movable arm andcomprises a first rotating arm and a second rotating arm which are extended outwards from the connected position, an included angle of the first rotating arm and the second rotating arm is fixed, theend part of the first rotating arm is rotationally connected to a cylinder barrel of a bucket arm cylinder, a second connection point of the connecting end of the bucket rod is rotationally connectedwith a movable rod of the bucket arm cylinder, an auxiliary oil cylinder is arranged on the movable arm, a cylinder barrel of the auxiliary oil cylinder is rotationally connected with the movable arm,and a movable rod of the auxiliary oil cylinder is rotationally connected with the end part of the second rotating arm; displacement sensors are arranged on the bucket arm cylinder and the auxiliaryoil cylinder respectively, and an angle sensor is arranged at the second connection point; and bucket rod device further comprises a controller electrically connected with the displacement sensors, the angle sensor and the auxiliary oil cylinder respectively. According to the invention, the bucket rod can keep the maximum digging force for a long time.

Description

technical field

[0001] The invention relates to the technical field of excavators, in particular to a stick device, a control method thereof, and an excavator. Background technique

[0002] Excavators have functions such as excavating earth and rocks, demolishing buildings, and moving heavy objects. The working device of the excavator is mainly composed of a boom, a stick, and a bucket. The rear end of the boom is hinged with the main engine, the front end is hinged with the stick, the two ends of the boom cylinder are respectively hinged with the boom and the main engine, and the boom cylinder is hinged. The movable rod pushes the boom to rotate around its rear end to realize the up and down swing of the front end of the boom. The two ends of the stick cylinder are respectively hinged with the boom and the stick, and the movable rod of the stick cylinder pushes the lower end of the stick to swing back and forth.

[0003] The excavation system of the existing excavator is ...

Images