液壓貨梯http://www.manetech.cn/是從基本件組裝成部件，再從部件組裝成整機的一種設備，在這臺設備的制造過程中，都需要通過連接來實現，連接是液壓貨梯生產過程中不可以少的過程。在這個過程中運用了焊接、鉚接、螺栓連接等這些最常用的連接方式。但是在同一接頭處，不得采用兩種以上的連接方式。
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.
液壓貨梯焊接是一種目前來講廣泛采用的一種連接方式，焊接工藝比較簡單，其不足之處是連接剛度較大，易引起結構的殘余應力和變形，焊縫對低溫的敏感性大。焊條或焊絲型號應與主體金屬強度相適應，對于液壓貨梯工作級別高、承受動載荷的結構焊縫，必須保證焊條或焊絲有足夠韌性和塑形。液壓貨梯采用不同的焊接方法時，必須選用合適的焊條型號。焊碳素鋼和低合金鋼時，可以采用氣焊保護焊；焊接不銹鋼和有色金屬時采用Ar弧焊或He弧焊等技術焊接。
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.
液壓貨梯http://www.manetech.cn/螺栓連接的優點是連接的韌性和塑性較好，液壓貨梯質量檢查方便，傳力均勻。對經常變化吊運方向與動力載荷的結構，以及在低溫下工作的結構，連接可靠，性能好，其缺點是在液壓貨梯高速運轉的動力載荷作用下容易松動。粗制螺栓傳遞剪力的能力很小。精致螺栓要求精度是較高的，對于液壓貨梯的安裝造成了一定的不方便。高強度螺栓不是靠本身傳力，而是靠很高的螺栓預緊力在連接間產生的摩擦力來傳遞力。根據液壓貨梯的高速發展，跟隨的螺栓也在不段改進，改進后的螺栓更適合液壓貨梯的高速運轉。
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.
