Presses – Methods – Forcing through constricted passage
Patent
1985-09-06
1986-12-09
Wilhite, Billy J.
Presses
Methods
Forcing through constricted passage
100 43, 100191, B30B 1526
Patent
active
046273417
ABSTRACT:
In a bale case (20) of an agricultural baler, a reciprocating plunger (71) is connected by a connecting rod assembly (90) and a wrist pin (92) to a driving crankshaft (74). A tension adjusting system (60) is provided for adjusting the dimensions of a bale case (20). The tension adjusting system (60) is responsive to a signal produced by sensors which sense stress when a compactive force is applied by the plunger (71) to crop material in the bale case (20). In one embodiment shear stress sensors (124, 126, 128, and 130) are mounted in annular recesses (120, 122) on the exterior of a wrist pin (92) to sense upon compaction the shear stress experienced by the wrist pin (92) in shear planes (160A, 160B). In another embodiment shear stress sensors (170, 171, 172, and 173) are mounted on an interior surface (174) of a wrist pin (90') to sense the shear stress experienced by the wrist pin (92') in shear planes (176, 177). In an another embodiment, bending stress sensors (182, 183, 184 and 185) are mounted on chordal flat portions (180 and 181) of a wrist pin (92") to sense upon compaction the bending stress experienced by the wrist pin (92") in a bending plane. In another embodiment, a load cell (190) with stress sensors (194, 195) mounted thereon is mounted between a connecting rod plate (98) and a connecting rod bearing housing (102).
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Bigelow Donald O.
Bowen Linwood H.
Sudbrack Cecil R.
New Holland Inc.
Wilhite Billy J.
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