Swinging arm device for grasping teeth of integral-frame four-wheel-drive air-brake rear-steering agricultural grass grasping machine

Abstract

The invention discloses a swinging arm device for grasping teeth of an integral-frame four-wheel-drive air-brake rear-steering agricultural grass grasping machine. The swinging arm device comprises column seaming parts fixedly connected on a frame, the upper portion of each column seaming part is hinged to a large moving arm seaming part, the other ends of the large moving arm seaming parts are hinged to a grasping head, the grasping head is hinged to upper grasping teeth as well as to an upper grasping teeth oil cylinder, and the other end of the upper grasping teeth oil cylinder is hinged to the upper grasping teeth. A lifting oil cylinder is hinged between each large moving arm seaming part and the corresponding column seaming part, a front crossbeam and a rear crossbeam are fixedly connected onto the large moving arm seaming parts, a swinging arm is hinged onto the front crossbeam, a connecting rod and a turnover oil cylinder are hinged to the upper end of the swinging arm, the other end of the connecting rod is hinged to the grasping head, the other end of the turnover oil cylinder is hinged to the rear crossbeam, and the upper grasping oil cylinder, the lifting oil cylinders and the turnover oil cylinder are hydraulically connected with a hydraulic multi-way control valve respectively through hydraulic pipelines. The machine is broad in vision, so that sight of a driver is unaffected; requirements on driver's operation are not severe, the large moving arm seaming parts can be lifted optionally on the condition that the unloading grasping teeth face downwards; the swinging arm device is simple in structure and convenient to use.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a swing arm device for turning to the gripping teeth of an agricultural grass grabber after a four-wheel-drive air brake of an integral frame. Background technique [0002] At present, the grass catcher used for the recovery and utilization of crop stalks such as wheat, corn, paddy rice, sorghum and soybean has been widely used. The welded upper part is hinged with a large boom welded, and the other end of the big boom welded is hinged with the gripping head, the gripping head is hinged with the upper gripping tooth, the gripping head is hinged with the upper gripping tooth oil cylinder, and the The other end of the upper grabbing tooth oil cylinder is hinged with the upper grabbing tooth; a lifting cylinder is hinged between the welding of the large boom and the welding of the column, and the welding of the large boom is fixedly connected with a front beam, and ...

AI Technical Summary

Problems solved by technology

The lever device of this kind of grass grabbing gear first affects the driver's sight; second, it has strict requirements on the driver's operation. In the case of unloading the grabbing teeth downward, it is strictly forbidden to lift the large boom to weld, otherwise, the lever will be damaged. , front beam, flip cylinder and large boom are welded

Images