| 摘要 |
PURPOSE:To make a power transmission gear compact in size by laying all the shaft center of an oil pump and an oil motor in parallel with axles. CONSTITUTION:A power transmission gear 13 includes two oil motors 29 and 29 driven by an oil pump 27 and an oil motor 27, deceleration mechanisms 31 and 31 provided in a space between each oil motor 29 and right and left axles 21, a 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 respectively, and the right and left mission chambers 45 and 47 are communicated by a through hole formed in the base 35. Lubricating oil is sealed in the mission chambers 45 and 47, the oil pump 27, the oil motors 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 members 45 and 47. The oil pump 27 is arranged on the mounting surface 35A of the base 35 with its drive shaft 55 placed in parallel with the axle 21.
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