Hydraulic elevator with counterweight
CN224691606UActive Publication Date: 2026-08-28DONGNAN ELEVATOR
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Patent Information
- Application Number
- CN202522303417.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-10-30
AI Technical Summary
Technical Problem
[0003]本实用新型的目的在于：为了解决现有液压电梯能耗高的问题，而提供的一种带平衡重的液压电梯
Benefits of technology
[0030]在电梯井道顶部增设定滑轮，并引入平衡重。具体而言，一根钢丝绳绕过井道顶部的定滑轮，其两端分别连接电梯轿厢和平衡重。平衡重的下方与液压油缸的柱塞上端相连，而液压油缸固定安装于井道底部，当轿厢需从底层上升时，液压泵站向液压油缸上部的有杆腔即柱塞杆所在的一侧腔体注入压力油。推动液压油缸上的柱塞向下运动，从而通过钢丝绳拉动轿厢上升。由于平衡重的重力方向与轿厢上升的方向相同，其对轿厢起到了显著的平衡与提升辅助作用。因此，液压组件实际需要输出的力，仅为轿厢总重与平衡重重力之差值，再克服系统摩擦力，从而大幅降低了上行时的能耗。当轿厢需下行时，系统控制液压回路中的阀门打开。此时，轿厢侧的重力大于平衡重侧的重力，形成的重力势能差驱使轿厢下行。这一运动趋势迫使液压油缸内的液压油从有杆腔回流至压夜泵站，实现轿厢的平稳下行。
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Smart Images
Figure CN224691606U_ABST
Abstract
The utility model discloses a kind of hydraulic elevators with counterweight, belong to hydraulic elevator technical field, it includes: elevator car, steel wire rope, counterweight, hydraulic assembly and at least certain pulley, the fixed pulley is arranged at the top of hoistway, one end of the steel wire rope is connected with the elevator car, the other end of the steel wire rope is connected with the counterweight by the fixed pulley, the counterweight is connected with hydraulic assembly, away from one end of the steel wire rope, the hydraulic assembly is arranged at the bottom of hoistway, the hydraulic assembly includes hydraulic cylinder and hydraulic pump station, the hydraulic cylinder is connected with the counterweight, the hydraulic cylinder is connected with the hydraulic pump station by pipeline.The utility model can solve the problem of high energy consumption of existing hydraulic elevator compared with prior art.
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