Hydraulic motor
AssigneeNachi-Fujikoshi Corp.
InventorTakaya Yokota
Life of this patent
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Abstract
A configuration of a hydraulic motor according to the present disclosure includes: a cylinder barrel rotatably supported in a housing together with a shaft; a plurality of pistons slidably inserted into the cylinder barrel in an axial direction; a swash plate for changing strokes of the pistons; a control piston for adjusting an angle of the swash plate; a valve body provided with an inflow port and an outflow port; a female thread formed at an end portion of the shaft of the cylinder barrel on a valve body side; a shaft member (hexagonal bolt) having irregularities on an outer peripheral portion and attached to the female thread; and a sensor disposed between the inflow port and the outflow port and detecting the irregularities of the shaft member.
Claims3
A hydraulic motor comprising:
- a cylinder barrel rotatably supported in a housing together with a shaft;
- a plurality of pistons slidably inserted in an axial direction into the cylinder barrel;
- a swash plate for changing strokes of the pistons;
- a control piston for adjusting an angle of the swash plate;
- a valve body provided with an inflow port and an outflow port;
- a female thread formed at an end portion of the shaft of the cylinder barrel on the valve body side;
- a shaft member having irregularities on an outer peripheral portion and attached to the female thread;
- and
- a sensor arranged between the inflow port and the outflow port and detecting the irregularities of the shaft member.
Dependencies are inferred from the claim text.