液压货梯http://www.jnliqiao.com/是从基本件组装成部件，再从部件组装成整机的一种设备，在这台设备的制造过程中，都需要通过连接来实现，连接是液压货梯生产过程中不可以少的过程。在这个过程中运用了焊接、铆接、螺栓连接等这些最常用的连接方式。但是在同一接头处，不得采用两种以上的连接方式。
Hydraulic freight elevator is assembled from basic elements into components, then assembled into a device from parts of the machine, in the manufacturing process of these devices are required to implement by connection, the connection is a hydraulic freight elevator during production process not less . Use of welding, riveting, bolting, etc. The most common of these connections in the process. But in the same joints can not be in two or more connections.

液压货梯焊接是一种目前来讲广泛采用的一种连接方式，焊接工艺比较简单，其不足之处是连接刚度较大，易引起结构的残余应力和变形，焊缝对低温的敏感性大。焊条或焊丝型号应与主体金属强度相适应，对于液压货梯工作级别高、承受动载荷的结构焊缝，必须保证焊条或焊丝有足够韧性和塑形。液压货梯采用不同的焊接方法时，必须选用合适的焊条型号。焊碳素钢和低合金钢时，可以采用气焊保护焊；焊接不锈钢和有色金属时采用Ar弧焊或He弧焊等技术焊接。
Hydraulic freight elevator welding is a connection in terms of a widely used now, the welding process is relatively simple, its shortcomings are connected stiffer, can lead to the structure and residual stresses in welds great sensitivity to low temperature. Welding rod or wire type corresponding to the metal strength to adapt, hydraulic freight elevator for high-level work, the structure under dynamic loading weld rod or wire must ensure that there is sufficient toughness and shaping. Hydraulic freight elevator of different welding methods, you must use the appropriate electrode type. When welding carbon steel and low alloy steel, welding arc welding can be used; the use of Ar or He arc welding technology for welding stainless steel and non-ferrous metal welding.

液压货梯http://www.jnliqiao.com/螺栓连接的优点是连接的韧性和塑性较好，液压货梯质量检查方便，传力均匀。对经常变化吊运方向与动力载荷的结构，以及在低温下工作的结构，连接可靠，性能好，其缺点是在液压货梯高速运转的动力载荷作用下容易松动。粗制螺栓传递剪力的能力很小。精致螺栓要求精度是较高的，对于液压货梯的安装造成了一定的不方便。高强度螺栓不是靠本身传力，而是靠很高的螺栓预紧力在连接间产生的摩擦力来传递力。根据液压货梯的高速发展，跟随的螺栓也在不段改进，改进后的螺栓更适合液压货梯的高速运转。
Advantages of hydraulic freight elevator bolted connections toughness and ductility is good, quality inspection convenient hydraulic freight elevator, transfer evenly. The structure, as well as structural changes frequently lifting direction and dynamic loads at low temperatures to work, reliable connection, good performance, the drawback is the hydraulic freight elevator at high speed dynamic loads easy to loose. The ability to transfer shear bolt small crude. Junior bolts required accuracy is higher, for the installation of hydraulic freight elevator caused some inconvenience. High strength bolts pass not by itself force, but by high bolt preload in the connection between the friction generated by transmitting force. According to the rapid development of hydraulic freight elevator, follow bolts are not of the improvement, bolts improved more suitable for high-speed operation of hydraulic freight elevator.