如今在许多厂房仓库等地都会见到直顶式液压升降平台运输货物，直顶式液压升降平台是属于液压升降平台中一种常见的传输设备，可运输0-50吨的货物，大大提高了效率，但是有时候运输货物速度会变慢，今天就来给大家讲解一下出现这一现象的原因。

    1、直顶式液压升降平台额定速度和额定载重的提升，都意味着必须增大主机功率，使用更大一号的曳引机。一旦主机功率增大了，变频器功率也必须增大，相应的接触器，动力线都必须加大号。

    2、直顶式液压升降平台其他配置，比如光电平层开关，强迫减速开关级数，安全钳、导轨，导靴之类的可能都因速度引起变化，当然，这个必须与具体制造厂家的配置如何分级相关。

    3、直顶式液压升降平台液压泵站系统的电磁阀可适当调节速度，如果已经调节到最大了，尝试检查液压升降平台的液压油是否充足，油缸是否漏油等，如果都没有问题，速度还是慢，建议更换更大的泵站系统。

    4、直顶式液压升降平台应符合中华人民共和国机械行业标准JB/T9229.1、JB/T9229.2、 JB/T9229.3，液压升降平台一般分直顶式液压升降平台、剪叉式液压升降平台、四柱式液压升降平台等。工作环境温度-15-+40℃，一般要求工作台上升速度应为6-9m/min，下降速度应不大于6m/min. 升降台类型不同计算方式稍有区别;升降机速度的计算：升降速度等于升降高度/(油缸的体积/泵站排量)。

   Nowadays, in many factories, warehouses and other places, straight top hydraulic lifting platforms can be seen transporting goods. Straight top hydraulic lifting platforms are a common transmission equipment in hydraulic lifting platforms, which can transport 0-50 tons of goods, greatly improving efficiency. However, sometimes the speed of transporting goods may slow down. Today, we will explain the reasons for this phenomenon.

   1. The increase in rated speed and rated load of the straight top hydraulic lifting platform means that the main engine power must be increased and a larger traction machine must be used. Once the power of the host increases, the power of the frequency converter must also increase, and the corresponding contactors and power lines must be enlarged.

   2. Other configurations of the straight top hydraulic lifting platform, such as photoelectric leveling switches, forced deceleration switches, safety clamps, guide rails, guide shoes, etc., may vary due to speed. Of course, this must be related to how the specific manufacturer's configuration is graded.

   3. The solenoid valve of the hydraulic pump station system of the straight top hydraulic lifting platform can adjust the speed appropriately. If it has already been adjusted to the maximum, try to check whether the hydraulic oil of the hydraulic lifting platform is sufficient, whether the oil cylinder leaks, etc. If there are no problems and the speed is still slow, it is recommended to replace it with a larger pump station system.

   4. The straight top hydraulic lifting platform should comply with the machinery industry standards JB/T9229.1, JB/T9229.2, JB/T9229.3 of the People's Republic of China. Hydraulic lifting platforms are generally divided into straight top hydraulic lifting platforms, scissor type hydraulic lifting platforms, four column hydraulic lifting platforms, etc. The working environment temperature is -15-+40 ℃. Generally, the lifting speed of the workbench should be 6-9m/min, and the descending speed should not exceed 6m/min. The calculation method may vary slightly depending on the type of lifting platform; Calculation of lift speed: The lift speed is equal to the lift height divided by the volume of the oil cylinder divided by the displacement of the pump station.