Forage harvesters
阅读：272发布：2021-08-06
专利汇可以提供Forage harvesters专利检索，专利查询，专利分析的服务。并且A forage harvester with upper and lower sets of feed rollers for compressing a gathered crop, each upper feed roller being mounted near one end of a relatively long shaft driven from its other end through a universal joint, the end carrying the roller being mounted in a bearing capable of rise and fall movement restrained by a spring.，下面是Forage harvesters专利的具体信息内容。
1. A forage harvester having means for picking up a crop, a feed roller assembly for comprssing the crop, and a cutting rotor for chopping up the compressed crop, the feed roller assembly comprising at least one rotatable shaft, a roller mounted fast on one end portion of said shaft with and elongate portion of said shaft projecting therefrom, said elongate portion being longer than the axial length of said roller, means for driving said shaft, and a pivotal coupling between said driving means and the end of said elongate portion of said shaft remote from the roller, said driving means being rotatably mounted to the harvester and the end of said shaft remote from said driving means being mounted for rise and fall movement so that the roller and shaft will swing together about said pivotal coupling.
2. A forage harvester according to claim 1 wherein upper and lower rollers are provided, between which the crop is passed, the shafts of each roller being driven through a pivotal coupling and the shaft of the upper roller being mounted in a floating bearing sO as to be capable of restrained rise and fall movement.
3. A forage harvester according to claim 1, in which the pivotal coupling is a universal joint.
4. A forage harvester according to claim 1 wherein said shaft is unsupported between said pivotal coupling and the end of said roller which is furthest from the pivotal coupling.
5. A forage harvester according to claim 1 wherein the length of said elongate portion of said shaft is at least twice the length of said roller.
6. A forage harvester according to claim 1 having means for picking up a crop, a feed roller assembly for compressing the crop and a cutting rotor for chopping up the compressed crop, the feed roller assembly comprising at least one pair of opposed rollers between which the crop is passed, a rotatable shaft having first and second ends, one of said opposed rollers being mounted fast on one end portion of said shaft adjacent said first end, an elongate portion of said shaft extending between said second end and the roller mounted on the shaft, said elongate portion being at least equal in length to the length of said roller, means for driving said shaft, a pivotal coupling between said driving means and said second end of said shaft said driving means being rotatably mounted to the harvester, and a floating bearing with said first end of said shaft mounted in said floating bearing so as to be capable of restrained movement towards and away from the other of said opposed rollers said shaft being unsupported between said pivotal coupling and said floating bearing so that the roller mounted on the shaft and said shaft may swing together about said pivotal coupling.
7. A forage harvester according to claim 1 wherein that end of the said shaft remote from the pivotal coupling is mounted in a floating bearing capable of rise and fall movement, and means are provided for restraining said movement.
8. A forage harvester according to claim 7 wherein said floating bearing is biased into a downward direction by a spring.
9. A forage harvester according to claim 7 wherein said floating bearing is attached to the free end of a radius arm fixed to the machine.
10. A forage harvester according to claim 9 wherein the said radius arm is arranged at right angles to the said shaft.
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