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关于二手叉车的知识你了解多少?

来源:/ 日期:2018-12-05 发布人:admin

所谓叉车是用货叉或其他工作装置自行装卸货物的起升车辆。属于物料搬运机械。广泛应用于车站•●、港口•●、机场•●、工厂•●、仓库等国民经济各部门,是机械化装卸•●、堆垛和短距离运输的高效设备。自行式叉车出现于1917年。第二次世界大战期间,叉车得到发展。中国从20世纪50年代初开始制造叉车。叉车按结构分类有:平衡重叉车•●、前移叉车•●、侧面叉车•●、插腿叉车•●、跨车和特种叉车6类。其中平衡重叉车应用最广,常简称为叉车。叉车搬运的对象大多是成件物品。将货叉换装各种器具(叉车属具)后,又可搬运多种货物。叉车主要由以下几种装置组成:①动力装置。如内燃机和蓄电池-电动机等。②传动装置。分为机械•●、液力和液压传动装置。③转向装置。如转向器•●、转向轮•●、转向拉杆等。④工作装置。又称门架,由内门架•●、外门架•●、货叉架•●、货叉•●、链轮•●、链条•●、起升油缸和倾斜油缸等组成。⑤液压系统和制动装置。表示叉车性能的主要参数是在标准起升高度和标准载荷中心距下的额定起重量。载荷中心距是货物重心到货叉垂直段前壁的距离。

  The so-called forklift truck is a lifting vehicle that loads and unloads goods by itself with forks or other working devices. It belongs to material handling machinery. It is widely used in stations, ports, airports, factories, warehouses and other departments of national economy. It is an efficient equipment for mechanized loading and unloading, stacking and short distance transportation. Self-propelled forklift truck appeared in 1917. During the Second World War, forklift trucks were developed. Forklift trucks have been manufactured in China since the early 1950s. Forklift trucks are classified by structure into six categories: balanced forklift truck, forward forklift truck, side forklift truck, legged forklift truck, crossing truck and special forklift truck. The balance weight forklift truck is the most widely used, often referred to as forklift truck. Forklift trucks mostly carry finished goods. After the fork is replaced with various appliances (forklift fittings), a variety of goods can be transported. Forklift truck is mainly composed of the following devices: 1. power plant. Such as internal combustion engine and battery-motor. 2. Transmission device. It is divided into mechanical, hydraulic and hydraulic transmission devices. 3. Steering gear. Such as steering gear, steering wheel, steering tie rod, etc. (4) working device. Also known as portal frame, by the internal portal frame, external portal frame, fork rack, fork, sprocket, chain, lifting cylinder and inclined cylinder and other components. _Hydraulic system and brake device. The main parameters for expressing the performance of forklift trucks are rated lifting weight under standard lifting height and standard load center distance. The load center distance is the distance from the center of gravity of the cargo to the front wall of the vertical section of the fork.
  叉车由动力装置﹑轮式底盘和工作装置三个主要部分组成﹐工作装置包括门架﹑链条﹑叉架﹑货叉和液压缸等。门架为伸缩结构,铰接在车轴或车架上,通过倾斜液压缸可前后倾斜﹐以便于装卸货物和带货行驶。起升液压缸通过链条传动使装有货叉的叉架沿内门架升降﹐内门架叉以外门架为导轨上下伸缩﹐使叉车能以较低的门架高度﹐把货物举升到较高的高度。
  Forklift truck consists of three main parts: power device, wheel chassis and working device. The working device includes door frame, chain, fork frame, fork and hydraulic cylinder. The portal frame is a telescopic structure, articulated on the axle or frame, and can be tilted back and forth by tilting the hydraulic cylinder, so as to facilitate loading and unloading of cargo and driving with cargo. The lifting hydraulic cylinder is driven by chain to make the fork rack with fork lift along the inner gantry. The gantry rack outside the fork of the inner gantry is used as the guide rail to expand up and down, so that the forklift truck can lift the goods to a higher height with a lower gantry height.
  根据动力装置分电瓶叉车和内燃叉车两种。根据叉车的构造特点分直叉平衡重式﹑插腿式﹑前移式﹑侧叉式以及各种特殊用途的特种叉车等。其中直叉平衡重式叉车应用最为普遍。 直叉平衡重式叉车。货叉装在车体前端﹐伸出前轮中心线外。为了平衡货物重量产生的倾覆力矩﹐在车体尾部装有平衡重﹐作业时依靠叉车前后移动进行叉卸货物。 插腿式叉车。两条臂状的支腿伸向前方﹐支腿前端装有小直径的车轮﹐作业时货叉连同支腿一起插入货物底部﹐然后使货叉起升。由于货物位于车轮的支承面内﹐所以整车稳定性好。 前移式叉车。是插腿式叉车的变型﹐其货叉可在叉车纵向前后移动﹐装卸货物时货叉伸出,行驶时则退回到车体中部,整车稳定性好。 侧叉式叉车。门架和货叉面向叉车一侧﹐位于车体中部﹐并可横向一起移动﹐适用于搬运长件货物﹐叉车行驶时﹐货物置于车体平台上﹐整车稳定性好。
济南二手叉车
  According to the power device, the battery forklift truck and the internal combustion forklift truck are divided. According to the structural characteristics of forklift trucks, special forklift trucks with straight fork balancing weight, inserting legs, moving forward, side fork and various special uses are adopted. Straight fork balancing forklift truck is the most widely used. Straight fork balancing forklift truck. Forklifts are mounted at the front end of the car body, extending out of the front wheel center line. In order to balance the overturning moment caused by the weight of cargo, a balance weight is installed at the rear of the body, and the forklift truck is used to move forward and backward to unload the cargo. Plug in forklift. Two arm-shaped legs stretch forward. The front end of the legs is equipped with small diameter wheels. During operation, the fork is inserted into the bottom of the cargo together with the legs, and then the fork is lifted. Because the goods are located in the supporting surface of the wheels, the stability of the whole vehicle is good. Forward fork lift truck. It is a variant of the plug-in forklift truck. Its fork can move forward and backward longitudinally. When loading and unloading the goods, the fork extends out and returns to the middle of the truck body when driving. The whole truck has good stability. Side fork forklift truck. The portal frame and fork are facing the side of the forklift truck, located in the middle of the truck body, and can move together horizontally. They are suitable for handling long cargo. When the forklift truck is running, the cargo is placed on the platform of the truck body, and the stability of the whole truck is good.
  叉车的主要技术参数是额定载重量和最大起升高度。叉车不但工效高﹐而且换装方便﹐近年来发展较快﹐已广泛采用的可换装的工作装置有30余种。例如换装侧夹装置可搬运油桶﹑捆包﹔换装串杆装置可搬运钢卷﹑水泥管﹔换装起重臂﹑吊钩可吊装各种重物﹔换装铲斗可装卸搬运散料等。叉车机动灵活﹐适应性好﹐作业效率高﹐应用二手叉车可实现装卸﹑搬运作业机械化﹐减少货物破损﹐提高仓库容积的利用率和作业安全程度﹐故为各部门所广泛采用。
  The main technical parameters of forklift truck are rated load and maximum lifting height. Forklift trucks not only have high efficiency, but also are easy to change. In recent years, they have developed rapidly, and more than 30 kinds of replaceable working devices have been widely used. For example, changing side clamping device can carry oil drums and bundles; changing string rod device can carry steel coils and cement pipes; changing lifting arm and hook can lift various weights; changing bucket can load and unload bulk materials, etc. Forklift trucks are flexible, adaptable and efficient in operation. The use of used forklift trucks can realize mechanization of loading and unloading and handling operations, reduce cargo damage, and improve the utilization of warehouse volume and operational safety. Therefore, they are widely used by various departments.

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