Abstract: A work machine includes an attachment rotatably attached to an upper turning body; a gripping part rotatably attached to the attachment, the gripping part gripping a long carried-material; and processing circuitry, and a memory storing computer-readable instructions, which when executed, cause the processing circuitry to calculate a weight of the carried-material, based on a torque for rotating the attachment.

Abstract: A work machine includes processing circuitry, and a memory storing computer-readable instructions, which when executed by the processing circuitry, cause the work machine to perform a process including calculating a load weight of a carried material loaded on a vehicle, inputting a weighbridge measured value, and generating a correction value, based on the weighbridge measured value inputted in the inputting and the load weight calculated in the calculating, wherein the calculating includes correcting the load weight by the correction value to calculate a corrected load weight.

Abstract: A work machine is provided that includes: an attachment attached on an upper rotating body and including at least a boom, an arm attached on an end of the boom, and an end attachment attached on an end of the arm; and a control device, wherein the control device compensates for a torque, which causes the boom to rotate, based on either or both of a centrifugal force on the arm and an inertial force on the arm, and calculates a weight of a conveyance object conveyed by the attachment based on the torque for which the compensation is performed.

Abstract: A work machine includes a lower structure, a slewing upper structure attached to the lower structure via a slewing mechanism, an attachment, including at least a boom, and attached to the slewing upper structure, a boom cylinder configured to drive the boom, a work tool attached to the attachment, and a controller. The controller includes a weight calculating part configured to measure a weight of a transporting object to be transported by the work tool, based on a boom cylinder pressure of the boom cylinder, and a vibration control part configured to generate a command for reducing vibration of the attachment.

Abstract: A shovel that corrects the movement of an attachment regardless of the operating state of the attachment by an operator is provided. The shovel includes a traveling body, a turning body turnably mounted on the traveling body, an attachment attached to the turning body, a hydraulic actuator configured to drive the attachment, and a controller. The controller is configured to control the hydraulic actuator to minimize a change in orientation of the traveling body or of the turning body, in response to a change in moment caused by an aerial movement of the attachment.

Abstract: A shovel includes a lower traveling structure, an upper swing structure swingably mounted on the lower traveling structure, and a hardware processor provided on the upper swing structure. The hardware processor is configured to recognize the position of a dump truck and create a target trajectory for a dumping operation.

Abstract: An excavator includes an attachment attached to a revolving upper body; and a first actuator and a second actuator configured to drive the attachment; and a control device including a memory and a processor configured to execute calculating a weight of a loaded matter loaded in the attachment as a first weight, based on the first actuator, and calculating the weight of the loaded matter as a second weight, based on the second actuator.

Abstract: A shovel includes a traveling body, an upper turning body turnably provided on the traveling body, an attachment including a boom, an arm, and a bucket and attached to the upper turning body, and a processor. The processor is configured to correct the motion of the attachment in such a manner as to control a slip of the traveling body toward the back in the extension direction of the attachment.

Abstract: A shovel includes a traveling body, an upper turning body turnably provided on the traveling body, an attachment including a boom, an arm, and a bucket and attached to the upper turning body, and a processor. The processor is configured to correct a motion of the boom cylinder of the attachment in such a manner as to control a lift of the rear of the traveling body with the front of the traveling body serving as a tipping fulcrum. The processor is configured to correct the motion of the boom cylinder based on a rod pressure and a bottom pressure of the boom cylinder.

Abstract: A shovel includes an attachment attached to a revolving upper body; and a control device including a memory and a processor configured to execute estimating a center of gravity of loaded matter loaded in the attachment, and calculating a weight of the loaded matter based on the estimated center of gravity of the loaded matter.

Abstract: A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a boom attached to the upper turning body, an arm attached to the boom, an end attachment attached to the arm, a sensor configured to output detection information about an orientation of a work part of the end attachment, and a processor configured to control operation of the work part to cause the work part to perform compaction of ground by pressing the work part against the ground, wherein the processor is configured to control an operation of the arm and the end attachment according to a lowering operation of the boom to cause an end portion of the work part to perform the compaction of the ground on the basis of the detection information of the sensor.

Abstract: An excavator attachment is attached to a rotating platform of an excavator. A display unit visually displays a predicted stability indicating stability of the posture of the excavator after the excavator is manipulated.

Abstract: A shovel that corrects the movement of an attachment regardless of the operating state of the attachment by an operator is provided. The shovel includes a traveling body, a turning body turnably mounted on the traveling body, an attachment attached to the turning body, a hydraulic actuator configured to drive the attachment, and a controller. The controller is configured to control the hydraulic actuator to minimize a change in orientation of the traveling body or of the turning body, in response to a change in moment caused by an aerial movement of the attachment.

Abstract: A shovel includes a traveling body, an upper turning body turnably provided on the traveling body, an attachment including a boom, an arm, and a bucket and attached to the upper turning body, and a processor. The processor is configured to correct a motion of the boom cylinder of the attachment in such a manner as to control a lift of the rear of the traveling body with the front of the traveling body serving as a tipping fulcrum. The processor is configured to correct the motion of the boom cylinder based on a rod pressure and a bottom pressure of the boom cylinder.

Abstract: A shovel includes a traveling body, an upper turning body turnably provided on the traveling body, an attachment including a boom, an arm, and a bucket and attached to the upper turning body, and a processor. The processor is configured to correct the motion of the attachment in such a manner as to control a slip of the traveling body toward the back in the extension direction of the attachment.

Abstract: An excavator attachment is attached to a rotating platform of an excavator. A display unit visually displays a predicted stability indicating stability of the posture of the excavator after the excavator is manipulated.

Abstract: Provided is a shovel including a swiveling motor, and a swiveling speed reducer that reduces the rotational speed of an output shaft of the swiveling motor. The swiveling speed reducer includes a first gear mechanism; a first gear case that houses the first gear mechanism; a first oil check pipe that is disposed in the first gear case; a first communication portion that allows an inside of the first gear case and the first oil check pipe to communicate with each other; and a second communication portion that connects a position of the first gear case higher than a position where the first communication portion is connected, and a high position of the first oil check pipe.

Abstract: A shovel includes: a speed reducer configured by stacking a plurality of gear speed reducers each having a sun gear, a planetary gear, an internal gear, and a carrier member supporting the planetary gear provided in a case, in a direction of an axis of rotation of an upper turning body; and a movement restriction section which is provided between the sun gear of one gear speed reducer among the gear speed reducers stacked in a plurality and another gear speed reducer stacked so as to face the sun gear and restricts movement of the sun gear of the one gear speed reducer toward the other gear speed reducer, wherein the movement restriction section is provided at the case.

Abstract: A simple planetary reduction gear includes a sun gear, a planetary gear which revolves around the sun gear and is supported by a carrier, and an internal gear with which the planetary gear internally meshes, and is used in a vertically installed state. The sun gear includes a shaft portion protruding to a load side (lower side) coaxially with a shaft center O1 of the sun gear, and the shaft portion is supported by a ball bearing which is disposed between the outer circumference of the shaft portion and the inner circumference of the carrier. Accordingly, high maintainability is secured and a problem of generation of heat is prevented.

Abstract: A shovel includes a turning drive unit. The turning drive unit includes a turning electric motor, a turning speed reducer configured to transmit the rotational driving force of the turning electric motor to a turnable body, a brake unit configured to maintain the turnable body in a state where the turning of the turnable body is stopped, a case forming a space in which the turning speed reducer and the brake unit are lubricated with lubricant oil and accommodated, a collar fixed around an output shaft of the turning speed reducer so as to rotate with the output shaft and covering at least a part of a relief part formed at a time of forming splines on the output shaft, and a sealing member provided between the collar and the case and hermetically sealing the lubricant oil inside the space.