| 摘要 |
PURPOSE:To make a power transmission gear compact in size by enabling the housing of an oil pump and an oil motor into a mission chamber together with a deceleration mechanism. CONSTITUTION:A power transmission gear 13 driven by an oil pump 27 and an oil pump 27 includes two oil motors 29 and 29 provided correspondingly to a right and a left axle, deceleration mechanisms 31 and 31 provided in a space between each oil motor 29 and the right and left axles 21, a mission case 33 and the like, wherein the right and left axles 21 and 21 are laid coaxially. Each of mission chambers 45 and 47 is formed by both cases 37 and 39 at the right and left of a base 35, wherein said mission chambers 45 and 47 are communicated by a through hole formed on the base 35. Lubricating oil is sealed in the mission chambers 45 and 47, wherein the oil pump 27, the oil motor 29 and 29, the deceleration mechanism 31 and the inner end section of the right and left axles 21 and 21 are housed in the mission chambers 45 and 47.
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