Excavator and excavator operation system

Abstract

An excavator includes a lower traveling body; an upper slewing body slewably provided on the lower traveling body; and an attachment provided on the upper slewing body, wherein the attachment includes a bucket rotatable around a first axis along a width direction, and a rotator configured to rotate the bucket around a second axis along a longitudinal direction to cause earth and sand to overflow to one side of the bucket during excavation of a construction surface by the bucket.

What is claimed is: 
     
         1 . An excavator comprising:
 a lower traveling body;   an upper slewing body slewably provided on the lower traveling body; and   an attachment provided on the upper slewing body,   wherein the attachment includes
 a bucket rotatable around a first axis along a width direction, and 
 a rotator configured to rotate the bucket around a second axis along a longitudinal direction to cause earth and sand to overflow to one side of the bucket during excavation of a construction surface by the bucket. 
   
     
     
         2 . The excavator according to  claim 1 ,
 wherein one side of the bucket from which the earth and sand is caused to overflow is a front side in a work progress direction intersecting a moving direction of the bucket during excavation of the construction surface.   
     
     
         3 . The excavator according to  claim 2 ,
 wherein the rotator rotates the bucket in a rotation direction in which an opening surface of the bucket faces the work progress direction during excavation of the construction surface.   
     
     
         4 . The excavator according to  claim 3 , further comprising:
 a processor, and a memory storing instructions that cause the processor to execute a process, wherein the process includes   controlling rotation of the bucket by the rotator,   wherein the controlling is capable of predicting the work progress direction based on a moving direction of the bucket between first excavation and second excavation of the construction surface, or capable of setting the work progress direction in advance.   
     
     
         5 . The excavator according to  claim 4 ,
 wherein the controlling includes controlling a rotation angle of the bucket around the second axis such that a number of times of excavation work is minimized, based on a width of the construction surface, a width of the bucket, the rotation angle of the bucket around the second axis, and an overlap width of the excavation work of the construction surface by the bucket.   
     
     
         6 . The excavator according to  claim 4 ,
 wherein the attachment includes
 an arm configured to support the bucket so as to be rotatable around the first axis, and 
 a boom configured to support the arm so as to be rotatable around a third axis parallel to the first axis, the boom being attached to the upper slewing body so as to be rotatable around a fourth axis parallel to the first axis. 
   
     
     
         7 . The excavator according to  claim 6 , further comprising:
 actuators configured to rotate the bucket, the arm, and the boom around the first axis, the third axis, and the fourth axis, respectively;   angle sensors configured to detect rotation angles of the bucket around the first axis and the second axis, and rotation angles of the arm around the third axis and the boom around the fourth axis; and   an operation device configured to detect operation amounts of the boom, the arm, and the bucket by an operator,   wherein the controlling includes controlling the actuators and the rotator based on the operation amount of the arm detected by the operation device and the rotation angles detected by the angle sensors during excavation of the construction surface.   
     
     
         8 . An excavator operation system comprising:
 an excavator including a lower traveling body, an upper slewing body slewably provided on the lower traveling body, an attachment provided on the upper slewing body, and a communication device provided on the upper slewing body;   a remote operation device configured to detect an operation amount of the excavator by a remote operator; and   a remote communication device configured to transmit the operation amount detected by the remote operation device to the communication device,   wherein the attachment includes
 a bucket rotatable around a first axis along a width direction, and 
 a rotator configured to rotate the bucket around a second axis along a longitudinal direction to cause earth and sand to overflow to one side of the bucket during excavation of a construction surface by the bucket.