| 摘要 |
<p>The present invention pertains to the field of agricultural machine construction and relates to suspension devices for coupling suspended tools to tractors, automobiles, auto-motive frames or other drive systems comprising a vertical-lift hydraulic system. This suspension device may be used for performing various agricultural operations especially in the farming sector. The suspension device of the present invention comprises a rectangular-section hollow beam (1) having four vertical mounts (2) rigidly mounted thereon. The side walls of the beam (1) comprise lugs (6, 28) for coupling the suspension device to a drive system, for coupling the suspended tools to said device as well as for coupling a trailer hitch to said device. The mounts (2) are connected together by a crossbar (3), while a bar (5) freely extends through their ends. The central mounts (2) are further connected by a lintel (4) comprising a lug (29), wherein said lug comprises several openings for simultaneously coupling different structural members thereto. The lower ends of said mounts (2) further support inserts (30) under the axis (31) of the lift boom (32). The suspension device may be coupled to a drive system using lugs (6) in two points as well as using lug (29) through a hydraulic cylinder. The suspended tools are coupled to the lug (6) on the side opposite to the drive system. The suspension device of the present invention may be converted into a suspended tool by coupling the following structural members thereto: a plurality of shanks (9), press-bars (10, 11), a bottom floor, a telescopic boom (32), a grab (36) or hydraulic cylinders (12, 18, 20, 21). The suspended tools may include a push-harrow, a transport system for cattle, logs or manure as well as a lifting or earth-moving device comprising a telescopic boom and a grab.</p> |
