经济型波纹管联轴器 BKL.pdf
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1、BKLBKLBKL SERIES BKL BKLBKL | BKLBKL2 500 NBKLBKLmBKL LOW COST AND RELIABLE. THE ULTIMATE COUPLING FROM 2 500 Nm BKLBKL SERIES BKL BKLBKL | BKLBKL2 500 NBKLBKLmBKL ECONOMY CLASS BELLOWS COUPLINGS R+WR+W2 MODEL BKL The selection process for model series BKL SA = shock or load factor SA = 1 (uniform l
2、oad) SA = 2 (non-uniform load) SA = 3-4 (shocking load) Values for SA = 2-3 are usual for servo drives on machine tools. According to acceleration torques: For precise rating, the acceleration torque and moments of inertia of the entire machine or plant have to be taken into consideration. In the ca
3、se of servo motors ensure that their acceleration or deceleration torque is higher than their nominal torque by a multiple. (degrees) TKN = rated torque of coupling (Nm) TAS = max. acceleration torque on the drive face (Nm) - or max. deceleration torque on the load face (Nm) JL = machines moment of
4、inertia (kgm2) (Spindle + slide + workpiece + half of coupling) JA = motors moment of inertia According to torsional stiffness: Transmission errors due to the torsional load on the metal bellows: = angle of turn (degrees) CT = torsional stiffness of coupling (Nm/rad) TAS = max. torque (Nm) (degrees)
5、 According to torque: In most cases the couplings are rated according to the maximum peak torque to be regularly transmitted. The peak torque may not exceed the rated torque of the coupling. By rated torque we assume: the torque that is continuously transmitted within the specified acceptable speed
6、and misalignment ranges. The following calculation has proven to be a good rule of thumb: TKN = rated torque of coupling (Nm) TAS = peak torque of motor (Nm) (degrees) According to resonance frequency: For the mech. substitutional model of the 2-mass-system is valid: As a value of practice is valid:
7、 fe 2 x fer CT = torsional stiffness of the coupling (Nm/rad) fe = resonance frequency of the 2-mass-system (Hz) fer = frequency of the drive (Hz) (degrees) Properties: high degree of torsional stiffness compensates axial, lateral and angular misalignment combined with quiet, smooth operation exact
8、angular transmission of motion and torque infinite life and maintenance free Areas of application: for high dynamic servo drives of: Machine tools CNC milling / grinding machines Woodworking machines Assembly machines Automated plants Textile machines Industrial robots Processing machines Printing m
9、achinery Packaging machines R+WR+W max. angular misalignment 1 degree (1 Nm = 8.85 in lbs) Model BKL Series 24.51015306080150300500 Rated torque (Nm)TKN24.51015306080150300500 Overall length (mm)A3040445868799292109114 Outer diameter (mm)B2532404956668282110123 Fit length (mm)C10.5131321.5262832.532
10、.54142.5 Inner diameter possible from to H7 (mm) D124-136-166-248-2812-3214-3516-4219-4224-6035-62 ISO 4762 fastening screw E M3M4M4M5M6M8M10M10M12M16 Tightening torque of the fastening screw (Nm) 2.344.5815407085120200 Distance between centers (mm)F8111417202327273941 (mm)G4556.57.59.511111317 Mome
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