Cross type universal coupling in the application of bridge crane

Cross type universal coupling in the application of bridge crane - 2020 01 - 08 Hao Xuelong abstract: the main analysis of several common universal coupling of usage, the reasonable choice and correct use of universal coupling, reduce equipment failure rate, improve the efficiency of production, for reference. Key words: universal coupling; Selection; Crane installation in industrial production are mostly applied to very harsh environment, so the crane design and manufacturing has very strict requirements, once appear problem, otherwise may cause significant losses to the enterprise, how to improve the safety of the crane has been the focus in the study of the manufacturer, this paper mainly on the advantages and disadvantages of the cross axle type universal coupling, only the correct reasonable reasonable choice and correct use of universal coupling, in order to reduce the equipment failure rate, improve production efficiency. 1 SWP type universal coupling SWP type universal coupling ( FIG. 1) Type is also called the SWP subdivision bearing the cross shaft universal coupling, because of the cross shaft universal coupling bearing damage easily for ease of replacement bearings, bearing design unit design is split, shaft bolt is fixed, the type universal coupling is suitable for lifting transportation machinery and other heavy machinery, used for connecting two different axes of the shaft system, the axis Angle A ~ F type not more than 10 & deg; 。 But as a result of bearing seat for subdivision form, the limited fork space take up too much, and the reliability of the parts is also poor, under the turning diameter of the same torque is small, easy failure in use process, and impact the production. The type universal coupling has the following three types: type A: scalable long; B: we can shorten the type; C: no shortening type; D: non-stretch long; F: scalable prototype, etc. These SWC type universal coupling SWC type universal coupling (2 FIG. 2) Is an improved alternative SWP series, the pattern is not bolted the overall structure of the fork, because there is no use cross shaft bearing fixed bolt, because it avoids the bolt looseness or breakage, the damage of equipment compared to SWP type universal coupling can improve the reliability, in order to better use of limited fork space size, SWC type universal coupling bearing designed as the main, deputy bearing structure, the structure has a larger Angle compensation ability, SWC type axis Angle can reach 15 & deg; Type, SWP can only achieve 10 & deg; Left and right sides, SWC type structure is compact and reasonable, the integral fork, make the delivery more reliability, the universal shaft bearing capacity is big, and with the rotation of the same diameter, in comparison with other types of universal coupling SWC type universal coupling torque is bigger, passed by the mechanical equipment for turning diameter restricted, the scope of its form a complete set of the superiority, high transmission efficiency, the transmission efficiency is 98 - 99. 8%, used in high power transmission, energy saving effect is obvious, carrying a smooth, low noise, easy maintenance, installation but found bearing axial positioning in practice with sliding gasket also wear is bigger, bearing axial spacing using elastic ring structure, using the easy damage or loss caused by accidents. The type universal coupling has the following three types: BH type: standard telescopic type welding; BF: standard telescopic flange type; DH: short telescopic type welding; CH: long telescopic type welding; WH type: non-stretch welding type; WF: without telescopic flange type; WD: no shorter type. 3 SWF type universal coupling SWF type universal coupling ( Figure 3) Is a kind of whole fork structure, make full use of the limited fork space dimension, and aims at these SWC type universal coupling bearing axial positioning with sliding gasket also wear is bigger, bearing axial spacing using elastic ring structure, using the easy damage, loss of faults, use card board instead of original reliable, clever at the shaft end part is equipped with rolling bearing, prolong the service life of universal coupling bearings, this series of products can bear large torque, steady running and small amount of wear and long service life, is particularly suitable for heavy working conditions, make it more highlight its advantages, can completely replace the SWC and SWP series. The type universal coupling has the following three types: type A: scalable long; B: we can shorten the type; C: no shortening type; D: non-stretch long; E: large scale; F: scalable prototype. 4 JXC type universal coupling JXC type universal coupling ( Figure 4) Is a kind of no integral fork structure of bolt connection, because there is no use cross shaft bearing fixed bolt, because it avoids the bolt looseness or breakage, the damage of equipment to improve the reliability, but no vice bearing structure, are smaller size, so the elastic ring is more reliable in use, advantage is rotary Angle can design is bigger, relatively low in cost, and is widely used in small tonnage bridge crane. The type universal coupling has the following three types: type A: scalable long; B: we can shorten the type; C: no shortening type; D: non-stretch long; E: large scale; F: scalable prototype. References: 1] GeZhiQi. Mechanical parts design manual [ M] 。 Metallurgical industry press, 1997. ( 2] Mechanical design manual singles coupling, clutch and brake [ M] 。 Beijing: mechanical industry publishing house, 2007. Source: 'the shandong industrial technology' 17, 2018