性欧美极品另类-性欧美极品-性欧美黑人xxxx-性欧美黑人-久久在精品线影院精品国产-久久曰视频

Welcome to Jinan Jinli Hydraulic Machinery Co., Ltd! Our company is insured by an insurance company!                              TEL:0531-84233822   TEL:13954115865   中文版

contact us

聯(lián)系我們

TEL:0531-84233822

TEL:15550068833/13954115865

E-mail:jinliyeya@126.com

Address: Haichuang Industrial Park, Huanghe Street, Jiyang District, Jinan City

Company News

The main power structure of hydraulic lifting platform

Source: Time:2020-02-15 09:02:20 views:

The main power structure of hydraulic lifting platform

The key to hydraulic lifting platform is to gradually realize the function of the elevator based on the working pressure transmission system of gear oil. Its scissor mechanical system ensures high reliability of the lifting platform. The spacious working service platform and high load-bearing capacity make the high-altitude operation scope larger and suitable for many people to work separately. It increases the efficiency of high-altitude operations and ensures safety (ensuring effectiveness).

Most models use a single-sided oil cylinder, which rises. The blade pump outputs high-pressure oil through a series of control valves and pipelines that enter the lower part of the oil cylinder, promoting the rise of the oil cylinder and lifting the service platform; When descending, the vane pump terminates and the control valve opens the oil discharge control circuit. The service platform slowly descends under the weight effect, and the hydraulic oil in the cylinder is squeezed and discharged! Generally, the descent of the lifting platform relies on its own net weight as the driving force, which presses out the steam under the piston rod and gradually descends. Therefore, the rate at which the oil under the piston rod is discharged determines the speed of descent. Generally, there are various valves on the inlet and outlet pipelines under the oil cylinder, among which there is an electromagnetic induction throttle valve (which is essentially a combination of a relay and a throttle valve). Its function is to operate the throttle valve through the relay, and the throttle valve is used to control the size of the remaining oil in and out of the water pipe. Generally, there is a knob on the valve body of the throttle valve to adjust the remaining oil, similar to a sound knob or a faucet knob. Therefore, you can adjust the descent rate by adjusting the knob on the throttle valve.

{2}

Links

全免费A级毛片免费看黄瓜视频 | 娇小小小泬BBBBu呦视频 | 影音先锋av在线资源 | 懂色AV一区V999AV | 国产精品久久久久久久无码蜜臀 | 日韩五月天色偷偷 | 成人无码区亚洲AV久久 | 成人免费一区二区三区在线观看 | 韩国免费无码AV | av影音先锋电影 | 国产91精品久久久久久 | 青青一区中文字幕 | 亚洲AV成人一区国产精品网 | 免费看A片18 的视频 | 熟女A片精品一区二区免费看 | 狠狠躁18三区二区一区 | 中日韩午夜理伦电影免费 | 双飞高潮喷水在线粉嫩 | 囯产羞羞免费视频 | 囯产激情av无码毛片久久 | GaⅤ成人视频免费观看 | 小草中文字幕日韩不卡av在线网 | 国产精品久久久久久免费观看 | 国产精品久久久高清无码 | 国产在线观看黄片 | 国产偷人妻精品一区二区在线 | 国产亚洲乱码Av篇小说 | 久久久中文字幕av | 欧一美一性一交一乱一乱一视频 | 性欧美婬妇AAAA免费 | 亚洲高清无码视频在线播放 | 一伦一情一交一性一区二区三区 | 亚洲精品永久免费在线观看 | 亚洲无码在线播放 | 国产做受69 三级二级一级 | 少妇疯狂做爰XXXⅩ高潮网站 | 亚洲中文无码人a∨在线69堂 | 天天躁狠狠躁夜躁2020挡不住 | 揉BBB揉BBB揉BBB18| 大乌视频久久无码 | 韩国一区二区三区视频 |