首页> 外国专利> HYDRAULIC ELEVATOR WITH A PRESSURE ACCUMULATOR AND METHOD FOR CONTROLLING AND ADJUSTING SAID ELEVATOR

HYDRAULIC ELEVATOR WITH A PRESSURE ACCUMULATOR AND METHOD FOR CONTROLLING AND ADJUSTING SAID ELEVATOR

机译:具有压力蓄能器的液压升降器以及控制和调节所述升降器的方法

摘要

The invention relates to a hydraulic elevator comprising a pressure accumulator (17). Hydraulic oil can be conveyed between the pressure accumulator (17) and a hydraulic drive (22) by means of a pump (13). The direction of rotation of the pump (13) can be modified. An electrically controllable cylinder line stop valve (12) is disposed on one side of the pump (13) and an electrically controllable accumulator stop valve (15) is disposed on the other side thereof. Both valves (12,15) are open-close valves. In order to avoid disruptive rapid changes in pressure occurring when the valves are opened (12,15) prior to the beginning of the travel of the elevator car (1), means are provided (13, 14, 24, 25) which can be additionally operated in association with a pressure switch (22) and a load pressure sensor (31), enabling the pressure in the line section between the pump (13) and the cylinder line stop valve (12) and in the line section between the pump (13) and the accumulator line stop valve (15) to be modified when the elevator car comes to a standstill such that the pressure differences are substantially reduced prior to the opening of the valves (12, 15) . The invention also relates to a corresponding control method. The invention makes it possible to ensure energy-saving and comfortable operation of a hydraulic elevator.
机译:本发明涉及一种包括蓄压器(17)的液压电梯。液压油可以通过泵(13)在蓄压器(17)和液压驱动器(22)之间输送。泵(13)的旋转方向可以更改。在泵(13)的一侧上设置有可电控的气缸管路截止阀(12),在其另一侧上设置有可电控的蓄能器截止阀(15)。两个阀(12,15)均为开闭阀。为了避免在电梯轿厢(1)开始行进之前打开阀(12,15)时发生的破坏性的压力快速变化,提供了装置(13、14、24、25),其可以是与压力开关(22)和负载压力传感器(31)一起额外操作,使泵(13)和气缸管路截止阀(12)之间的管路部分以及泵之间的管路部分中的压力有效(13)和蓄能器管路截止阀(15)在电梯轿厢停止运转时进行修改,以便在阀(12、15)打开之前大幅降低压力差。本发明还涉及相应的控制方法。本发明可以确保液压电梯的节能和舒适的操作。

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