Title:
AUGER DEVICE AND HYDRAULIC OIL BYPASS CONTROL METHOD
Document Type and Number:
Japanese Patent JP2023080560
Kind Code:
A
Abstract:
To provide an auger device capable of preventing rapid decompression of a hydraulic oil which occurs in the case where a hydraulic motor is stopped, and to provide a hydraulic oil bypass control method.SOLUTION: An auger device 1 includes: an auger screw for excavating the ground; a hydraulic motor 7 for driving the auger screw; a flywheel provided so that an inertia force is transmitted to the auger screw; a bypass circuit 44 for bypassing a first hydraulic line 40 for supplying a hydraulic oil to the hydraulic motor 7 and a second hydraulic line 42 where the hydraulic oil is discharged from the hydraulic motor 7; and a logic insert valve 46 for opening/closing the bypass circuit 44. The auger device 1 closes the logic insert valve 46 in the case where the hydraulic oil is supplied to the hydraulic motor 7, and opens the logic insert valve 46 in the case where a stop signal of hydraulic oil supply to the hydraulic motor 7 is output, and closes the logic insert valve 46 after a preset predetermined time has elapsed.SELECTED DRAWING: Figure 3
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Inventors:
FUJITA TOMOYA
OKA MASATO
OKA MASATO
Application Number:
JP2021193977A
Publication Date:
June 09, 2023
Filing Date:
November 30, 2021
Export Citation:
Assignee:
GIKEN SEISAKUSHO KK
International Classes:
E02D7/00; F15B11/02
Attorney, Agent or Firm:
Mamoru Suzuki
Shinji Kato
Takayuki Ishimoto
Shinji Kato
Takayuki Ishimoto
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