发明名称 |
HYDRAULIC CONTROL SYSTEM FOR WEIGHING AND TWO-WAY VALVE THEREFOR |
摘要 |
A motion control system for hydraulically operated lifting devices. The system p rovides for the dynamic weighing of a loaded container by controllably directing hydraulic flow through a bypass chamb er (51) of a two-way valve (42). An analog output signal is generated by a hydraulic pressure transducer (53) fluidly commu nicating with the two-way valve or by a tensiometer (24) mounted on the arms of the lifting device (14). The two-way valve (42) furt her provides a second bypass chamber (54) which receives fluid under gravity from the lift circuit line (40) of the hydraulic cy linder (18) for controllably lowering the lifting device (14). The pressure transducer (53) or tensiometer (24) generate an analog signal proportionate to the weight being lowered and whereby the hydraulic fluid is returned to the reservoir of the hydraulic system independently and downstream of the main operating valve (33).
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申请公布号 |
CA2106852(C) |
申请公布日期 |
1999.05.04 |
申请号 |
CA19922106852 |
申请日期 |
1992.03.31 |
申请人 |
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发明人 |
SMITH, RONALD |
分类号 |
G01G5/04;G01G19/08;(IPC1-7):F15B21/08;G05D3/00;B65F3/00 |
主分类号 |
G01G5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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