发明名称 |
METHOD AND DEVICE FOR REDUCING THE DRIVING POWER FOR AN HYDRAULIC LIFT |
摘要 |
The invention relates to a method and an arrangement for reducing the driving power for a hydraulic elevator in which an energy-saving drive is realised by an advantageous combination of various devices. The elevator car (1) is suspended in the shaft (7) with a rope deflection known per se in the ratio of 4:2 and is connected to a hydraulic piston/cylinder unit (10). A counterweight system in the ratio of 2:1 is arranged at the head end (16) of the piston/cylinder unit (10) so that the requisite pressure force at the piston can be reduced. The counterweight (23) is designed in such a way that the weight of the car and the load expected to occur most frequently in the car are balanced. The cylinder (11) of the piston/cylinder unit (10) is acted upon by the pump for both the ascending travel and the descending travel of the elevator car (1), in the course of which a differential circulation of the fluid flows takes place for the ascending travel, as a result of which a smaller fluid volume can be used for the dimensioning of the pump. <IMAGE> |
申请公布号 |
AU3289293(A) |
申请公布日期 |
1993.08.12 |
申请号 |
AU19930032892 |
申请日期 |
1993.02.09 |
申请人 |
INVENTIO AG |
发明人 |
HEINZ-DIETER NAGEL;JORG CHRISTIANS;GERALD LECHLER |
分类号 |
B66B9/00;B66B1/24;B66B9/04 |
主分类号 |
B66B9/00 |
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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