a级毛片无码久久精品免费_柠檬福利第一导航在线_广东少妇大战黑人34厘米视频_色噜噜狠狠综曰曰曰

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

Differences in Mobile Hydraulic Lifting Platforms-

Source: Time:2020-01-06 09:04:08 views:

Differences in Mobile Hydraulic Lifting Platforms-

The main difference between mobile hydraulic lifting platforms and fixed elevators is their ability to move, which has led to the development of a walking system for hydraulic lifting platforms. To make them more stable during operation, a support system has been added.

The support system of hydraulic lifting platform mainly consists of manual support legs and hydraulic support legs. Today, we will introduce hydraulic support legs to you. The commonly used hydraulic support legs for hydraulic lifting platforms can be roughly divided into the following forms.

The movable leg of the frog style leg is hinged on the fixed leg, and its deployment action is completed by a hydraulic cylinder. It is characterized by a simple structure and light weight, but the leg span is not large, only suitable for small tonnage cranes.

H-shaped legs are not commonly used in hydraulic lifting platforms and have two hydraulic cylinders. After extending the movable legs, they support the ground vertically during work, forming an H-shaped structure, hence the name. The characteristic is that the leg span is relatively large and has good adaptability to the field, which has been widely adopted.

When X-shaped support legs work, they form an X-shape with a small ground clearance. During the process of supporting the feet to the ground, there is horizontal displacement. When it is a small amplitude, the space for heavy objects to move is larger than that of H-shaped support legs. Therefore, it is often mixed with H-shaped support legs to form a front

H. The form of X after.

The radial support legs extend outward in a radial pattern from the bowl shaped frame of the chassis, with the rotation center of the turntable as the center. The characteristic is good stability. During lifting operations, all loads do not pass through the frame but directly act on the support legs. This can reduce the weight of the frame and lower the overall height of the machine, protecting the chassis from damage. Mainly used on some extra large cranes.

The above are the most common hydraulic support legs commonly used in elevator equipment on the market. The function of the support legs is to provide a larger support span for the elevator during operation without increasing the width of the elevator, thereby making the lifting operation of the elevator more stable without reducing its maneuverability.

The walking system of hydraulic lifting platforms has a wide variety of walking mechanisms on the market. Today, let's briefly introduce loaded driving and good stability in operation. The chassis layout breaks through traditional design theories and methods, and reduces the offset of the center of gravity by adopting a degraded split platform layout for load propagation. Adopting a unique (meaning: distinctive, special) large angle rear hinge layout, multiple types of counterweight modules are properly installed, effectively balancing the working torque. The use of H-shaped variable cross-section composite box girder cutting frame and high load solid rubber tires increases the overall stiffness of the chassis, improves the stability of the whole machine during operation, and achieves the effect of carrying load for high-altitude work platform vehicles.

Internal combustion engine drives the chassis. Composed of engine, frame, walking mechanism (organization), steering mechanism, etc. Considering the comprehensive requirements of work reliability, noise, emissions, etc., a specialized diesel engine for construction machinery is preferred. This engine is an inline 4-cylinder water-cooled, naturally aspirated engine with a full range governor, running smoothly, and has the characteristics of high thermal efficiency, low specific fuel consumption, and less emission pollution. Due to the low driving speed of the trolley, considering both operational safety and economy, the frame adopts a rigid connection type without a suspension mechanism, and high load solid rubber tires are selected for the tires.

A new type of fully hydraulic self-propelled dedicated chassis. The self-propelled high-altitude work platform vehicle with independent intellectual property rights has been developed, which adopts technologies such as electromechanical hydraulic integration, reliability design, and computer-aided design. It has successfully developed a type of fully hydraulic driven, self-propelled special chassis, breaking through the previous domestic high-altitude work platform vehicles that could only use automotive or crane chassis modification and disassembly design.

The walking method is hydraulic drive, which directly uses an imported motor and reducer integrated with an internal walking reducer. It is equipped with fast and slow driving speeds to meet the requirements of the vehicle in different environments. When driving on a slope, the walking mechanism has a self braking function and is also equipped with a clutch device, which facilitates towing in case of a fault. The steering mechanism adopts a rod type steering mechanism driven by hydraulic cylinders.

At present, there are various types of hydraulic lifting platform products in China, and the production processes of different manufacturers are also different. Therefore, the walking systems used in hydraulic lifting platforms on the market and the support systems commonly used in elevators by manufacturers are not the same.

{13}

Links

午夜老师机生活黄色A片 | 人人妻人人藻人人爽欧美一区 | 91精品久久久久久久无码 | 一本大道东京热av无码 | 妇女人人插人人爽 | 精品无码人妻一区二区三区,精品动漫 | 潮喷 合集 喷水 mp4 | 久久婷色综合色欲 | 欧美黑大粗硬毛片免费视频A片 | 久久国产成人午夜AV影院宅 | 亚洲孕妇A片婬片www | 亚洲精品成人综合国产线上 | 国产又粗又猛又大又黄日本丰灬 | 亚洲中文字幕在线观看 | 国产91在线播放 | 强伦人妻一区二区三区电影 | 麻豆网站少妇AAA片 久久久久一区二区三区 | 欧美性生活xxXXXxXxxx | 波多野结衣高清无码视频 | 亚洲AV无码成人精品区国产 | 中文字幕精品一区 | 久久精品国产亚洲AV无码城中村 | 久久国产精品鲁一鲁一区二区 | 国产中文字幕一区在线观看 | 2017天天爽天天日 | 精品国产乱码一区二区三区黑料 | 六十路老熟女亂伦 | WWW国产精品内射老熟女 | 一级A片无码免费久久真人视果冻 | 欧美激情一区二区A片成人牛牛 | 茄子这里有精品视频在线 | 后入中出内射成人在线网站 | 午夜无码精品一区二区三区蜜桃臀 | 手机在线观看国产黄色电影 | 亚洲 欧美 蜜色 视频 | 国产无码免费高清网站 | 日韩无码视频播放器 | 亚洲无码一区在线观看 | 色在线最新少妇com 国产农村妇女乱XXⅩ | 日本一区二区三区免费在线观看 | 欧美不卡一区二区三区 |