COMBINATION OF VOLUME TYPE HYDRAULIC DEVICE AND COMBINATION OF INTEGRAL TYPE HYDRAULIC TRANS AXLE, VOLUME TYPE HYDRAULIC DEVICE, AND HOUSING

摘要

PURPOSE: To make minimum mechanical machining work to a housing formed of a pair of upper and lower housing portions for cost reduction by providing a constitution where a support for a slant plate of a fixed displacement type hydraulic device is provided at only one of the housing portions. CONSTITUTION: An integrated hydraulic trans-axle has an upper housing portion 12 and a lower housing portion 14 which constitute a housing 10 and they are connected to each other along a division line 16. A hydraulic transmission having a pair of displacement type hydraulic devices 20, 22 and a trans-axle constitutional element are accomodated in the housing 10. The device 22 is of fixed displacement type, while a slant plate 61 is not necessary to be mounted adjustably and supported by only a support structure provided at only one of the portions 12, 14. Accordingly, the machining work for forming support surfaces to both the housing portions is dispensed by only applying the work to one of the housings.