Mechanical device, working vehicle, and deterioration state estimation system and deterioration state estimation method of machine component

A deterioration state estimation system of a machine component, comprising:

• a housing that has an internal space in which a machine component immersed in oil is housed;
• a transparent spacer member disposed in an opening of the housing;
• a magnet supported in the spacer member so the magnet can attract a foreign substance to an incident surface of the transparent spacer member;
• an image capturing device that captures the internal space of the housing via the spacer member;
• an image data acquisition unit that acquires image data captured by the image capturing device;
• and
• an output device that outputs the image data acquired by the image data acquisition unit,
• wherein the magnet is disposed in a visual field area of a lens system of the image capturing device and the image capturing device can capture the foreign substance attracted onto the incident surface of the transparent spacer member.

A deterioration state estimation method of a machine component, comprising:

• capturing an image of an internal space of a housing, in which a machine component immersed in oil is housed, by an image capturing device via a transparent spacer member that includes a magnet supported therein so the magnet can attract a foreign substance to an incident surface of the transparent spacer member and that is disposed in an opening of the housing;
• and
• estimating a deterioration state of the machine component based on the image data captured by the image capturing device,
• wherein the magnet is disposed in a visual field area of a lens system of the image capturing device and the image capturing device can capture the foreign substance attracted onto the incident surface of the transparent spacer member.

A mechanical device comprising:

• a housing that has an internal space in which a machine component immersed in oil is housed;
• a transparent spacer member disposed in an opening of the housing and including an incident surface and an exit surface which faces a direction opposite to the incident surface;
• a magnet supported by the spacer member so the magnet can attract a foreign substance to an incident surface of the transparent spacer member;
• and
• an image capturing device that captures the internal space of the housing via the spacer member,
• wherein the magnet is disposed in a visual field area of a lens system of the image capturing device and the image capturing device can capture the foreign substance attracted onto the incident surface of the transparent spacer member, and
• wherein a distance between the magnet and the incident surface is shorter than that between the magnet and the exit surface.