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FLUID MACHINERY ROTATION INFORMATION CALCULATION METHOD AND CONSTRUCTION MACHINERY
In accordance with an embodiment, a hydraulic motor (1) includes a casing (2), a cylinder block (3), a valve plate (4), and pressure sensors (5a, 5b). The cylinder block (3), which is housed in the casing (2) to be rotatable around a rotation axis line (C), includes a cylinder room (9) to or from which a working fluid is provided or discharged, and a cylinder port (10) connected to the cylinder room (9) to communicate with the room. The valve plate (4), which is placed between the cylinder block (3) and the casing (2) in a direction of the rotation axis line (C), has a plurality of supply and discharge ports arranged around the rotation axis line (C) to be connected to the cylinder port (10) to communicate with the port as well as detection holes (20a) formed between adjacent supply and discharge ports around the rotation axis line (C) and connected to the cylinder port (10) to communicate with the port. Pressure sensors (5a, 5b) detect the pressure of the working fluid introduced into the detection holes (20a). Therefore, the present invention is capable of acquiring rotation information of a cylinder block through a simple structure.
실시 형태의 유압 모터(1)는, 케이싱(2)과, 실린더 블록(3)과, 밸브판(4)과, 압력 센서(5a, 5b)를 구비한다. 실린더 블록(3)은, 케이싱(2) 내에 회전축선(C) 주위로 회전 가능하게 수납되며, 작동유가 공급, 배출되는 실린더실(9), 및 실린더실(9)에 이어져 통하는 실린더 포트(10)를 갖는다. 밸브판(4)은, 회전축선(C) 방향에서 케이싱(2)과 실린더 블록(3) 사이에 배치되며, 실린더 포트(10)에 이어져 통하는 복수의 급배 포트가 회전축선(C) 주위에 배열되어 형성되어 있음과 함께, 회전축선(C) 주위에서 인접하는 급배 포트의 사이에 형성되며 실린더 포트(10)와 이어져 통하는 검출 구멍(20a)을 갖는다. 압력 센서(5a, 5b)는, 검출 구멍(20a)에 유입되는 작동유의 압력을 검출한다.
FLUID MACHINERY ROTATION INFORMATION CALCULATION METHOD AND CONSTRUCTION MACHINERY
In accordance with an embodiment, a hydraulic motor (1) includes a casing (2), a cylinder block (3), a valve plate (4), and pressure sensors (5a, 5b). The cylinder block (3), which is housed in the casing (2) to be rotatable around a rotation axis line (C), includes a cylinder room (9) to or from which a working fluid is provided or discharged, and a cylinder port (10) connected to the cylinder room (9) to communicate with the room. The valve plate (4), which is placed between the cylinder block (3) and the casing (2) in a direction of the rotation axis line (C), has a plurality of supply and discharge ports arranged around the rotation axis line (C) to be connected to the cylinder port (10) to communicate with the port as well as detection holes (20a) formed between adjacent supply and discharge ports around the rotation axis line (C) and connected to the cylinder port (10) to communicate with the port. Pressure sensors (5a, 5b) detect the pressure of the working fluid introduced into the detection holes (20a). Therefore, the present invention is capable of acquiring rotation information of a cylinder block through a simple structure.
실시 형태의 유압 모터(1)는, 케이싱(2)과, 실린더 블록(3)과, 밸브판(4)과, 압력 센서(5a, 5b)를 구비한다. 실린더 블록(3)은, 케이싱(2) 내에 회전축선(C) 주위로 회전 가능하게 수납되며, 작동유가 공급, 배출되는 실린더실(9), 및 실린더실(9)에 이어져 통하는 실린더 포트(10)를 갖는다. 밸브판(4)은, 회전축선(C) 방향에서 케이싱(2)과 실린더 블록(3) 사이에 배치되며, 실린더 포트(10)에 이어져 통하는 복수의 급배 포트가 회전축선(C) 주위에 배열되어 형성되어 있음과 함께, 회전축선(C) 주위에서 인접하는 급배 포트의 사이에 형성되며 실린더 포트(10)와 이어져 통하는 검출 구멍(20a)을 갖는다. 압력 센서(5a, 5b)는, 검출 구멍(20a)에 유입되는 작동유의 압력을 검출한다.
FLUID MACHINERY ROTATION INFORMATION CALCULATION METHOD AND CONSTRUCTION MACHINERY
유체 기계, 회전 정보 산출 방법, 및 건설 기계
TODAKA AKIRA (author)
2022-02-03
Patent
Electronic Resource
Korean
European Patent Office | 2017
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