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Draw bar assembly for a work vehicle
专利权人:
CNH ITALIA S.P.A.
发明人:
POSSELIUS, JOHN H.,SMITH, KEVIN M.
申请号:
EP20050108537
公开号:
EP1645176(A1)
申请日:
2005.09.16
申请国别(地区):
欧洲专利局
年份:
2006
代理人:
摘要:
A drawbar assembly (16;84) is used to connect a farm vehicle, such as a tractor (10), to a towed implement (12). A sleeve (50) is supplied for secure attachment to the frame (18) of the farm vehicle, and dimensioned interiorly thereof to embrace the drawbar (42;86) and allow sliding, reciprocating, co-axial movement of the drawbar (42;86) in the sleeve (50). At least one hydraulic cylinder (54) comprising a casing (66), housing a hydraulically actuable piston (60), and rod (58) assembly therein with the rod (58) extensible beyond the casing (66), is provided. One of the rod and casing is configured for connection to the drawbar (42;86), and the other of the rod and casing for connection to the farm vehicle. A hydraulic system is connected to the hydraulic cylinder (54) to effect adjustment of the rod (58) relative to the casing (66) and thereby position the drawbar (42;86) axially of the sleeve (50), and to pressurize the cylinder (54) in accordance with the damping qualities desired for the load carried by the towed implement (12). In this manner, both position and load changes affecting the drawbar (42;86) may be accommodated in the hydraulic cylinder (54) independent of each other.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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