Power transmission device for work vehicle

A power transmission device for a work vehicle, comprising:

• a transmission case;
• a gear transmission housed in the transmission case and configured to transmit power to a travel device;
• and
• a plurality of transmission gears provided in the gear transmission in a state of sitting in lubricating oil stored in an internal space of the transmission case,
• wherein the transmission case is provided with a wall supporting a support shaft of each of the plurality of transmission gears while being adjacent to the plurality of transmission gears, and
• the wall is provided with a continuous recess in which the plurality of transmission gears sit, and
• the transmission case is provided with a cover protruding from the wall toward an outside of the recess and circumferentially covering a region of the plurality of transmission gears, the region being located outside of the recess.

A power transmission device for a work vehicle, comprising:

• a transmission case;
• a gear transmission housed in the transmission case and configured to transmit power to a travel device;
• and
• a transmission gear provided in the gear transmission in a state of sitting in lubricating oil stored in an internal space of the transmission case,
• wherein the transmission case is provided with a wall supporting a support shaft of the transmission gear while being adjacent to the transmission gear,
• the wall is provided with a cover protruding from the wall toward an outer periphery of the transmission gear and covering the transmission gear such that the cover inhibits the spreading of lubricating oil, when agitated, to the lubricating oil stored in other regions of the internal space of the transmission case, and
• a position of an oil surface of the lubricating oil and a position of the support shaft are the same.