The diaphragm coupling: 1: JMIJ pick the middle axis type diaphragm coupling: 1. Before installation should first check whether the prime mover and two-axis machine concentric two-axis surface wrapping paper and bruised, coupling whether it is two-and-a-half coupling bore debris bore edge whether there bruised, if any, should the shaft coupling halves clean, bumps and smooth file handling. Then checks whether the inner hole diameter and length of the two half couplings with the prime mover, the diameter of the working machine and the shaft length matches the size. General selection, the prime mover and working-side coupling half length smaller than the shaft length of 10 - 30mm as well. Alignment: to detect two halves of the coupling flange end face and cylindrical beating with a dial indicator, when the flange OD less than 250mm beating value should be less than 0.05mm; When the flange OD 250mm when beating value should not be greater than 0.08. 3 For ease of installation, the best two-and-a-half coupling on the 120 - 150 incubator or sump to warm up, large bore size up easily fitted. Installed guarantee axis head not protrude from the end face of the coupling halves to flush. Detects the distance between the two coupling halves: along the the half coupling flange medial measured 3 - 4:00 readings averaged, and lengthened segment with two diaphragm set of measured dimensions and , and the error is controlled within the range of 0-0.4mm. 2: Diaphragm coupling: the diaphragm coupling the elastic element by a thin stainless steel diaphragm stack synthetic membrane components the diaphragm usually have the shape of the waist, multilateral ring in the same circle of precision bolt flange connection with the driving and driven. The diaphragm assembly form of three-dimensional deformation withstand the main driven flange misalignment. Diaphragm coupling known elastic laminations couplings, or laminated flexible coupling, in recent years developed a new type of coupling one of the products Hebei Liqun coupling plant by constantly absorbing foreign advanced technology to the successful development of new products, the metal diaphragm coupling can be compensated for coupling two shafting various misalignment error (the radial error, the error in the axial direction, the angular displacement error, temperature changes caused by error) JMI type with countersunk hole diaphragm coupling, which depends mainly on the elastic coupling intermediate metal diaphragm transfer torque between two shafts with damping vibration absorption, no wear, no maintenance advantages today alternative gear coupling and general coupling ideal product, I plant the implementation of the standard (JB / T 9147-1999). &; JMI diaphragm coupling characteristics to compensate for the two axes misalignment capacity, can be twice as large compared to the gear coupling angular displacement, radial displacement reaction force, flexible, allow some axial, radial and angular displacement. 2, has a significant damping effect, no noise, no wear. 3, high transmission efficiency up to 99.86%. Particularly suitable for medium and high-speed high-power transmission. 4, to adapt to the high-temperature (-80 to +300) and the harsh environment to work and can impact security moving line vibration condition. 5, the structure is simple, light weight, small size, easy assembly and disassembly. Do not have to move the machine to disassembly (with intermediate shaft type), without lubrication. 6, accurate passing speed, slip free operation, the drive can be used in precision machinery. JMI type diaphragm couplings are widely used in the industries of metallurgy, mining, petroleum, chemical, electric power, shipbuilding, lifting, transportation, textile, light industry, agricultural machinery, printing machinery and pumps, fans, machine tools and other machinery and equipment in the transmission of power. Section 3. Clamp the diaphragm couplings: diaphragm type flexible coupling high sensitivity, high torque rigid Zero Backlash clockwise and counter-clockwise rotational characteristics identical stainless steel diaphragm compensate for angular and axial deviation. clamping screw fixed non-standard customized according to user needs, according to customer requirements to open the keyway 4.JZM heavy machinery with a diaphragm coupling: the JZM type of heavy machinery with a diaphragm shaft actuator diaphragm couplings by several groups of the diaphragm (thin stainless steel pull) with bolts staggered with two half coupling connection, each membrane stack set made from several pieces, the diaphragm divided into link and different the shape of the entire chip. Diaphragm coupling by the elastic deformation of the diaphragm to compensate for the relative displacement of the two axes associated metal flexible coupling of the elastic member is a high performance, without lubrication, the structure is more compact, high strength, long life, no spin gap, regardless of temperature, and the effects of oil pollution, acid, alkali, anti-corrosion characteristics, suitable for high-temperature, high-speed, shaft drive corrosive environment of medium conditions, are widely used in various mechanical devices shaft drive pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopter), high-speed vessels powertrain system dynamic balance applied to high-speed drive shafts have been relatively common. The JZM type of heavy machinery with a diaphragm coupling with a high mechanical strength, large carrying capacity, light weight, small size structure, high transmission efficiency and transmission accuracy, good reliability, easy assembly and disassembly, possessed or without relative sliding without lubrication , long service life, noise-free, acid, alkali, anti-corrosion characteristics, can be used for high temperature, low temperature, and the oil, water and corrosive media working condition. In high-speed, large torque shaft drive. As well as a variety of mechanical load changed little shaft drive, highly versatile. Coupling diaphragm: diaphragm couplings by several groups of the diaphragm (thin stainless steel pull) with bolts staggered with two half coupling connection, each diaphragm is made of several pieces stacked set from the diaphragm divided into the connecting rod and the different shapes of the whole chip. Diaphragm coupling by the elastic deformation of the diaphragm to compensate for the relative displacement of the two axes associated metal flexible coupling of the elastic member is a high performance, without lubrication, the structure is more compact, high strength, long life, no spin gap, regardless of temperature, and the effects of oil pollution, acid, alkali, anti-corrosion characteristics, suitable for high-temperature, high-speed, shaft drive corrosive environment of medium conditions, are widely used in various mechanical devices shaft drive pumps (especially high-power, chemical pumps), fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopter), high-speed vessels powertrain system dynamic balance applied to high-speed drive shafts have been relatively common. JZMJ heavy machinery diaphragm coupling with high mechanical strength, large carrying capacity, light weight, small size structure, high transmission efficiency and transmission accuracy, good reliability, easy assembly and disassembly, possessed or without relative sliding without lubrication , long service life, noise-free, acid, alkali, anti-corrosion characteristics, can be used for high temperature, low temperature, and the oil, water and corrosive media working condition. In high-speed, large torque shaft drive. As well as a variety of mechanical load changed little shaft drive, highly versatile. Use and maintenance, installation, should be cleaned two shaft end face, check the end keyway mouth cope with the situation; 2, after the installation of the diaphragm couplings, the normal operation of a class, you have to check all the screws, found loose, must be tightened so that repeated in several classes, to ensure that does not come loose; 3, in order to prevent the in fretting wear high-speed operation occurred, the diaphragm causes the diaphragm bolt holes microcracks and damage between the diaphragm coated with molybdenum disulfide and other solid lubricant or the diaphragm surface friction reducing coating processing; should avoid long-term overload the use and operation of the occurrence of the accident; working operation should always check whether the diaphragm coupling anomalies occurred and, if abnormal occurred must and into maintenance; 6, may be due to the operation of the diaphragm coupling caused by the accident site of personal and equipment must take appropriate security measures. 6: DJM-type single-diaphragm coupling details