Index Index... 1 General Information... 2 Working Principal... 3 Design Standards Applied:... 4 Feathers:... 4 Application:... 4 Selection of Fluid Couplings:... 4 Placing Order:... 5 Technical Data Sheet of Constant ( as medium)... 5 Main Structure Dimensions and Technical Parameters... 6 Installation and Disassembly Instruction... 8 Installation... 8 Disassembly... 8 Medium (oil/water) Filling Instruction... 9 The function of medium:... 9 Characteristics of medium (oil):... 9 filling and inspection:... 9 Suggested and Min. filling oil volume:... 9 Filling Routine Inspection:... 9 Operation and Maintenance Instruction... 10 1
Working Principal Constant Filling Fluid Coupling is a kind of powered hydraulic transmission device, which works on the hydrodynamic principle. It normally consists of two major parts: driving part and driven part. Driving part consists of complement chamber, front half coupling, rear half coupling, plastic insert, impeller and casing. Driven part consists of shaft and rotator. The driving part is connecting to motor, the driven part is connecting to driven device. The rotating torque generated by the driving part will be transferred to the driven part through the working fluid medium filled. Motor (driving device) drive pump impeller and mechanical energy transforms into liquid kinetic energy. The working fluid medium push the rotator, thus the rotator transforms the kinetic energy to mechanical energy, and then drives the driven device. There is no solid mechanical interconnection between the impeller and rotator. 1 2 3 4 5 6 7 8 4 9 10 1 Filling Plug Screw 2 Input Shaft 3 Plug Screw 4 Bearing 5 Impeller 6 Rotator 7 Fused Plug 8 Casing 9 End Cover 10 Output Shaft 3
Design Standards Applied: Fluid Couplings are designed in accordance with Chinese National Standards GB/T 5837 2008 and JB/T9001 1999, which also meet the requirements of international standards such as DIN and ISO. Feathers: Improve the starting capability of motors; Protect motors from overload, impact and vibration; Balance the load distribution in multi drive applications. Application: Widely used for mining machineries such as belt conveyers and scraper conveyers, bucket material handling machineries, ball mill, winding machineries, crushers, digging machines, mixers, straightener, cranes and tower cranes, etc. Selection of Fluid Couplings: In case of no special requirements required, the specification of the fluid couplings can be selected by motor rotation speed (e.g. the input speed of fluid couplings) and transmission powers in accordance with related values listed in the following table (Technical Data Sheet of Constant ( as medium) for Type Selection), then find the exactly the proper parameters in the related detailed technical data sheet for different types (sizes). Remarks: In case of using water as medium, the transmission power increases nearly 1.15 times as per oil as medium. So, when using water as medium, the value of nominal transmission power used for selection of coupling type shall be the actual value divided by 1.15. 4
Placing Order Please provide the following figures before placing orders: input/output shaft diameters with fit tolerance, length of each ends, parameters for keyways (including keyway width and depth). In case there are some special requirements such as applied on belt pulleys, brake wheels and other special structure types, please specify the detailed technical requirements accordingly. Optional thermal switches are available to provide alarming function in case the fluid spurting malfunctions when the oil temperature inside fluid coupling reached to an extremely high level. Technical Data Sheet of Constant ( as medium) Input Speed (rpm) Power 500 600 750 1000 1500 3000 Transmitted Size/Type (kw) 200 0.3~0.6 1~2 8~14 220 0.4~1.1 1.5~3 12~16.5 250 0.75~1.5 2.5~5.5 15~30 280 1.5~3 4.5~8.7 25~50 320 1.1~2.2 2.5~5.5 9~18.5 45~73 340 1.6~3.1 3~7.5 12~24 360 2~3.8 4.8~10 15~30 50~100 380 2.5~5.5 6~12 20~40 400 4~8 9~18.5 22~50 80~145 420 4.5~9 10~20 30~60 450 7~14 15~31 45~90 100~200 500 11~22 25~50 70~150 510 12~24 27~54 75~155 560 18~36 41~83 130~270 562 20~24 45~90 140~275 600 25~50 60~115 180~360 650 37~73 90~180 240~480 750 36~75 70~143 165~330 380~760 866 43~88 70~145 135~270 310~620 766~1100 1000 83~165 145~300 270~595 620~1100 1150 175~350 300~620 590~1200 5 1250 265~580 450~940 880~1835
Main Structure Dimensions and Technical Parameters Model Input Power Overload Efficiency Radial Min. Weight Input Output Total Assembly Speed Trans. Factor Axial Exclusive Shaft Shaft Thread Range (kw) (kg) Filled (L) Dia. Length Dia. Length Filled (L) hole SFC A 206 1000 0.3~0.6 2.5 0.96 φ254 200 10 0.80 φ28 60 φ30 55 1.0 1500 1.0~2.0 SFC A 220 1000 0.46~0.80 2.5 0.96 φ272 190 12 1.28 φ28 60 φ30 55 1.6 1500 1.4~2.5 SFC A 250 1000 0.75~1.4 2.5 0.96 φ300 215 15 1.8 φ38 80 φ35 60 2.25 1500 2.6~5 SFC A 280 1000 1.5~3 2.5 0.96 φ345 246 18 2.8 φ38 80 φ40 100 3.5 1500 4.5~8.7 SFC A 320 1000 2.7~5 2.5 0.96 φ388 304 28 5.2 φ48 110 φ45 110 6.5 1500 9.5~16 SFC A 340 1000 4~7 2.5 0.96 φ390 278 25 5.8 φ48 110 φ45 95 7.25 1500 12.5~22 SFC A 360 1000 4.8~9 2.5 0.96 φ420 310 49 7.1 φ55 110 φ55 110 8.88 1500 15~30 SFC A 380 1000 6~12 2~2.5 0.96 φ450 320 58 8.4 φ60 140 φ60 140 10.5 1500 20~40 SFC A 400 1000 8~15 2~2.5 0.96 φ480 356 65 9.3 φ60 140 φ60 150 11.6 M42X2 1500 20~45 SFC A 420 1000 5~15 2~2.5 0.96 φ495 368 70 12 φ60 140 φ60 160 15 M42X2 1500 20~50 SFC A 450 1000 15~26 2~2.5 0.96 φ530 397 70 13.6 φ75 140 φ70 140 16.2 M42X2 1500 46~85 SFC A 500 1000 25~45 2~2.5 0.96 φ590 411 105 19.2 φ85 170 φ85 145 24 M42X2 1500 85~153 SFC A 510 1000 25~45 2~2.5 0.96 φ590 426 119 19 φ85 170 φ85 160 23 M42X2 1500 75~135 SFC A 560 1000 45~70 2~2.5 0.96 φ650 459 140 27 φ90 170 φ100 180 38 M42X2 1500 150~255 SFC A 600 1000 60~115 2~2.5 0.96 φ695 474 160 36 φ90 170 φ100 180 45 M42X2 1500 200~360 SFC A 750 1000 340~660 2~2.5 0.96 φ842 1380 650 128 φ110 210 φ110 163 160 M56X2 1500 960~1520 6
Model Input Power Overload Efficiency Radial Min. Weight Input Output Total Assembly Speed Trans. Factor Axial Exclusive Shaft Shaft Thread Range (kw) (kg) Filled (L) Dia. Length Dia. Length Filled (L) hole SFC A 1000 750 280~530 2~2.5 0.97 φ1120 722 600 144 φ160 210 φ160 280 180 M56X2 1000 670~1100 SFC A 1150 750 280~530 2~2.5 0.97 φ1295 830 910 220 φ180 220 φ180 300 275 M64X2 1000 530~1100 SFC A 1320 750 570~1200 2~2.5 0.97 φ1485 953 1380 328 φ200 240 φ200 350 410 M64X2 1000 1100~2000 SFC B 400 1000 8~15 1.5~2.3 0.97 φ480 355 65 9.3 φ70 140 φ70 140 11.6 M42X2 1500 20~45 SFC B 450 1000 15~26 1.5~2.3 0.97 φ530 397 70 13 φ75 140 φ70 140 11.6 M42X2 1500 46~85 SFC B 500 1000 25~45 1.5~2.3 0.97 φ580 435 105 19.2 φ90 170 φ90 170 24 M42X2 1500 85~153 SFC B 560 1000 45~70 1.5~2.3 0.97 φ634 489 131 30 φ100 170 φ110 210 38 M42X2 1500 150~255 529 210 SFC B 650 1000 90~170 1.5~2.3 0.97 φ740 556 219 46 φ130 210 φ130 210 57 M56X2 1500 260~480 SFC B 750 1000 170~330 1.5~2.3 0.97 φ842 618 332 68 φ140 250 φ140 250 83 M56X2 1500 480~760 7
Installation & Disassembly Instruction Installation 1. Enough space shall be reserved between the motors and driven unit for installation of fluid couplings. 2. Keys should be well greased before they were placed in the keyways on motor and driven unit s shafts. 3. Specified tools can be used incorporate with screws on coupling s shaft to mount the coupling on motor s end smoothly. 4. The axial clearance between half couplings of motor and fluid coupling shall be 2~4mm. 5. The shaft concentricity between motor shaft and driven unit shaft shall be: axial deviation no more than 0.3mm, angel deviation no more than 40, space plates and elastic plates can be used to adjust the deviations. 6. After installation, the foot bolts shall be fastened for motor and driven unit. Then the shaft concentricity shall be checked again. 7. The taper ratio of driven unit shaft (high speed end) is normally 1/10, during the installation, the specified sealing components and fasten bolts shall be used to avoid oil leakage. Note: During installation, pressure plates press and hammer impact are prohibited. No hot charging permitted to avoid the components and seal parts. Disassembly Loosen the installation bolts on motor and then remove the motor from the fluid coupling. Remove the fluid coupling from the driven unit. Only specified disassembly tools can be used to remove the fluid couplings. No hammer and/or pressure plates permitted. The screw on the coupling shaft can be used to remove the fluid coupling from the driven unit. 8
Medium (oil/water) Filling Instruction The function of medium: and water can be used to the fluid couplings (depends on the working circumstance) as inter medium to transmit torque within the fluid couplings. The filling volume is strictly concerned about the transmitted torque value. Different filling volume provides different torque. Thus, one fluid coupling can be adapted to different motors. Characteristics of medium (oil): The characteristics of oil will greatly influence the working performance of fluid couplings. Generally, the oil shall be of low viscosity, high flashing point, high density, low corrosion effectiveness and good antiaging capability. For example: Viscosity: γ=22~32 mm 2 /s (at 50 ) Specific Weight: p=0.86/cm 3 (at 50 ) Flashing Point: no less than 180 Solidifying Point: < -10 filling and inspection: Suggested and Min. filling oil volume: 1. The oil filled shall be filtered before putting into the oil chamber. 2. Proper oil level is very important to the safety running of the fluid coupling. So periodically inspection on oil level shall be performed. 3. The filling volume shall not exceed 80% of total volume of oil chamber. Too much oil filling or fulfilling will cause extremely high temperature inside the fluid couplings, which will cause damages of the fluid couplings. The Min. filling volume shall be no less than 40% of total volume of oil chamber; otherwise, the bearings inside fluid couplings may be damaged due to insufficient lubrication. Filling Routine Inspection: The oil filling level shall be checked periodically to ensure there are enough oil has been added inside the fluid couplings. 9
Operation & Maintenance Instruction 1. Transmission direction: the fluid couplings are be able to running both directions. So, be sure the couplings are installed in proper direction as required before the first trial run. 2. Net-frame protection shall be provided to the fluid couplings. 3. In case the driving motor reaches its rated speed, the driven unit shall be driven accordingly. Otherwise, the whole mechanism must be stopped immediately, and the load shall be checked to avoid further damages to the whole mechanism. 4. No oil leakage permitted during fluid coupling s running. 5. After 3000 working hours, the filled oil shall be checked to make sure there are no aging phenomena occurred. Otherwise, the oil shall be changed. 6. The flexible insects status and positional accuracy between motor s shaft and driven unit s shaft shall be checked periodically. 7. Unnecessary disassembly is forbidden to avoid the seal and fabrication accuracy damages. 8. The melting point of fuse alloy is 120. If the working temperature is extremely high and the alloy fused, oil inside the oil chamber will burst out. And oil shall be refilled. Note: It is forbidden to use normal medal material screw instead of fuse screw. 9. Start/stop action should not be very frequently to avoid oil over-heated. 10. Proper ventilation shall be provided. No directly sunshine to the fluid coupling. 10