Cause analysis of unstable lifting of hydraulic lifting platform

熟悉液压举升平台的人都应该知道，当液压举升器举升不稳定时，从现场使用的角度来看，烟包经常打滑，举升位置难以察觉，中间位置找不到，举升有噪音、漏油等现象。

Anyone familiar with the hydraulic lifting platform should know that when the hydraulic lifting device is unstable, from the point of view of on-site use, the cigarette bag often slips, the lifting position is difficult to detect, the middle position can not be found, and the lifting has noise, oil leakage and other phenomena.

现场检查主要是由于液压快速升降，导致故障率增加，严重影响生产效率，升降不稳的原因很多，具体如下：

The on-site inspection is mainly due to the rapid rise and fall of hydraulic pressure, which increases the failure rate and seriously affects the production efficiency. There are many reasons for the unstable rise and fall, as follows:

针对液压举升平台系统故障，运用速度理论分析液压举升不稳定的原因：

Aiming at the failure of hydraulic lifting platform system, the causes of hydraulic lifting instability are analyzed by using speed theory:

(1)提升液压回路、油泵溢流阀、换向阀、换向阀(无节流)和增压缸的组成。

(1) Composition of lifting hydraulic circuit, oil pump overflow valve, reversing valve, reversing valve (without throttling) and booster cylinder.

(2)做好提升回路的刚度研究，进入液压系统的总流量，即单向总流量公式是通过的总流量;液压油的形状和粘度以及其他相关系数，

(2) Do a good job in the stiffness research of the lifting circuit, and the total flow into the hydraulic system, that is, the total flow through the one-way total flow formula; Shape and viscosity of hydraulic oil and other correlation coefficients,

根据分析，我们很容易得出以下结论：

Based on the analysis, we can easily draw the following conclusions:

当负载保持不变时，节流阀口入口越小，系统越高;相反，如果阀门的开启面积较大，则较低。

When the load remains unchanged, the smaller the throttle inlet, the higher the system; On the contrary, if the opening area of the valve is large, it is low.

负荷保持不变时，低速下硬度好，负荷变化时，小时率刚好。

When the load remains unchanged, the hardness is good at low speed, and when the load changes, the hourly rate is just right.

(3)供油压力加大，液压缸功能面积大，可提高硬度。

(3) The oil supply pressure is increased, and the functional area of the hydraulic cylinder is large, which can improve the hardness.

综上所述，很多设备故障都与液压有关，液压电梯故障的主要原因是液压系统升级和调速回路设计不合理，小编认为这方面要引起相关公司的重视，不要等到事故发生才后悔，得不偿失。

To sum up, many equipment failures are related to hydraulic pressure. The main reason for the failure of hydraulic elevator is the unreasonable design of hydraulic system upgrade and speed regulation circuit. Xiaobian believes that this aspect should be paid attention to by relevant companies. Don't wait for the accident to regret, and the gain is not worth the loss.

那么我们如何使用液压升降平台呢?

So how do we use the hydraulic lifting platform?

1.启动前，需仔细检查液压升降平台各部件，检查螺丝连接是否可靠，液压管路部件是否有泄漏，电线连接点是否松动或损坏。

1. Before starting, carefully check the components of the hydraulic lifting platform, check whether the screw connection is reliable, whether the hydraulic pipeline components have leakage, and whether the wire connection points are loose or damaged.

2.提升液压升降台前，将四个角放在支点上，四条支撑腿牢牢固定在坚实的地面上，桌面调整为水平(只需目测)，然后检查所有零件的正常位移后开始工作。

2. Before lifting the hydraulic lifting table, put the four corners on the fulcrum, firmly fix the four support legs on the solid ground, adjust the table to be horizontal (only visual inspection), and then check the normal displacement of all parts before starting to work.

3.进入平台后，关闭护栏门，插入螺栓，系好绳，中间载荷(人站的座位)尽可能位于控制台中间。

3. After entering the platform, close the guardrail door, insert the bolt, fasten the rope, and the middle load (the seat of the human station) shall be located in the middle of the console as far as possible.

4、作业时严禁液压平台超载，平台人员在起落下降时不得移动。

4. During operation, it is strictly prohibited to overload the hydraulic platform, and the platform personnel shall not move when taking off and falling.

5、牵引液压平台时，收好支腿，将平台降较低位置，严禁在高处移动平台。

5. When towing the hydraulic platform, close the outrigger and lower the platform to a lower position. It is strictly prohibited to move the platform at a high place.

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The above is the knowledge brought to you today. The scissor hydraulic lifting platform has focused on the industry for many years and continuously provides users with valuable content. Please continue to pay attention to us for more content: