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The invention discloses a movable arm mechanism of excavator; the movable arm mechanism of excavator comprises a small movable arm, spindles, a bucket air cylinder, a big movable arm, a small movable arm air cylinder, a bucket, a connecting rod, a big movable arm air cylinder, and a driving cab; the big movable arm air cylinder and the big movable arm are installed on a pedestal where the driving cab is located by the spindle; the small movable arm air cylinder is installed right above the big movable arm; an extended shaft is vertically in parallel to the big movable arm; based on lever principle, one end of the small movable arm is provided with the small movable arm air cylinder, the other end is provided with the bucket. The middle portion is connected with the big movable arm by the spindle; the bucket air cylinder is installed right above the small movable arm; the extended shaft is vertically in parallel to the small movable arm; one end of the connecting rod is installed on the small movable arm; the other end is installed on the bucket; the bucket is connected with one end of the small movable arm by the spindle; the connecting rod and the bucket constitute a three connecting rod mechanism; the small movable arm, the big movable arm and the connecting rod are connected by the spindle into a connecting rod system which is able to rotate around the spindle; under the actions of the small movable arm air cylinder, the big movable arm air cylinder and the bucket air cylinder, the excavating actions of the bucket are achieved.
The invention discloses a movable arm mechanism of excavator; the movable arm mechanism of excavator comprises a small movable arm, spindles, a bucket air cylinder, a big movable arm, a small movable arm air cylinder, a bucket, a connecting rod, a big movable arm air cylinder, and a driving cab; the big movable arm air cylinder and the big movable arm are installed on a pedestal where the driving cab is located by the spindle; the small movable arm air cylinder is installed right above the big movable arm; an extended shaft is vertically in parallel to the big movable arm; based on lever principle, one end of the small movable arm is provided with the small movable arm air cylinder, the other end is provided with the bucket. The middle portion is connected with the big movable arm by the spindle; the bucket air cylinder is installed right above the small movable arm; the extended shaft is vertically in parallel to the small movable arm; one end of the connecting rod is installed on the small movable arm; the other end is installed on the bucket; the bucket is connected with one end of the small movable arm by the spindle; the connecting rod and the bucket constitute a three connecting rod mechanism; the small movable arm, the big movable arm and the connecting rod are connected by the spindle into a connecting rod system which is able to rotate around the spindle; under the actions of the small movable arm air cylinder, the big movable arm air cylinder and the bucket air cylinder, the excavating actions of the bucket are achieved.
Movable arm mechanism of excavator
ZHANG CHAO (author)
2015-05-27
Patent
Electronic Resource
English
IPC:
E02F
Baggern
,
DREDGING
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