德国LENZE制动器BFK468技术资料.pdf

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德国LENZE制动器BFK468技术资料pdf,德国LENZE制动器BFK468技术资料
INTORQ I BFK468 spring-applied brake I en 7/2010 Contents INTORe Product information Functional principle Technical data Braking tor 7 Rated data Operating ti 9 Service life and wear 10 Accessories Manual release flange /cover ring 11 Brake cover 12 Microswitch Bridge/half-wave rectifier 14 Available variants List of abbreviations [kW Drive motor power Delay time on engagement P max W Maximum power when releasing the bra (time from disconnecting the voltage until ke with over-excitation the torque begins to rise) P20 W Coil power at 20C in continuous operati- t12 [s Rise time of braking torque on with holding current derating Operm [] Max permissible triction energy per M [Nm] Characteristic torque of brake switching cycle △ro [rpm Initial relative speed of brake [h-1 Operating frequency, i. e the number Engagement time, t1-t11+t12 of braking instances evenly distributed Disengagement time across the time unit (time from when the torque starts to drop Sru Rated air gap until 0. 1 MK is reached (time during which a relative motion occurs between the input and output, with brake applied INTORQ BFK46B spring-applied brake en 7/2010 Product key, NTORQ BEK468日日日 B 468 Product group: Brakes Spring-applied brake product family Size Design Size 18.20.25.31 Stator design E- Adjustable (braking torque can be reduced using torque adjustment ring N-Non-adjustable Complete stator Flange basic module e Hub Sea/ Rotor Complete stator basic module N Shaft sealing ring re P BFK468 modular system INTORQ I BFK468 spring-applied brake I en 7/2010 Product information INTORE A powerful and complete range Reliable Izes I The quality assurance system, certified to Iso 9001 and u Standard voltages 205/103V, 360/180V ISo 14001, provides the basis for consistently high-quality release voltage/holding voltage products I Torque range from 100-2400 Nm I Manufacture and testing to VDE 0580 Versatile Options Modular structure for virtually all applications Manual release for sizes 18-25. both directions can be I Connection compatible with the BFK458 range used for release I Noise-reduced designs Torque transmission I Different types of corrosion protection and enclosures I Designed for dry running I Microswitches used to monitor air gap and wear I Special machining of the friction surfaces ensures that the characteristic torques are achieved after very few switching operations No fixed bearing is required on the brake Quick and easy to install Preset air gap Durable I The insulation system to temperature class F(155 C) ensures that the winding has a long service life Brakes are designed for 100 duty time(with holding current derating) using an intRA bridge / half-wave rectitier Low maintenance I Long rotor/ hub connection with low rate of wear and a tried-and-tested evolvent tooth profile I Standard model has asbestos-free friction linings with low rate of wear 评武 INTORQ BFK46B spring-applied brake en 7/2010 Principle of operation Basic module E rotor+ hub+ flange Basic module N+ rotor+ hub+ flange Torque adjustment ring Roto Compression spring Armature plate Ill INTORQ BFK468 spring-applied brakes are single-disc The resulting magnetic flux works against the spring force to brakes with two friction surfaces. When deenergised, several draw the armature plate to the stator This releases the rotor compression springs are used to generate the braking from the spring force and allows it to rotate freely.Brake torque through friction locking. the brake is released module E supports the use of the torque adjustment ring ( 8) electromagnetically with holding current derating using an to reduce the braking torque INTORQ bridge/half wave rectifier. During the braking procedure, the rotor, which can be shifted axially on the huo is pressed against the counter friction face via the armature plate by means of the compression springs. When the brakes are applied, an air gap Slu is present between the armature plate and the stator. The stator's coil is energised with DC voltage in order to release the brake INTORQ BFK468 spring-applied brake I en 7/2010 Technical data INTORO Braking torques Basic modules E and N are available with the torque rating higher level of breakaway torque. The braking torque needs to listed below. At low torques, an intermediate plate(brass be checked if the brake is being used against friction surfaces sheet) needs to be inserted between the stator and armature at customer premises. If the brake is only being used as a plate in order to achieve short operating times. iNtORQ brakes holding brake without any dynamic load, the friction lining are designed to ensure the specified characteristic torques are must be reactivated at regular intervals usually achieved after a short running-in period. However, as The braking torque on basic module e can be reduced the characteristics of the organic friction linings used and the using the torque adjustment ring located in the stator.The environmental conditions may vary, the braking torques torque adjustment ring can be unscrewed to a specified may be subject to some deviation. Appropriate maximum dimension of h i max ( see table on page 8). It should safety features should be considered at design stage to deal be noted that the engagement and diseng ith these issues. In particular, humidity and fluctuating times change in accordance with the braking torque temperatures after long periods of downtime may lead to a Sizc 20 25 31 CharacteristicTorque Characteris Characteristic Torque Characteristic torque torque eduction e torque rgL er detent er detent per detent 30N Characteristic torques in 100N/E 170N/E elation to the relative speed .4 CO N Depending on the characteristic 130N/E 20N/E 350N/E torque spring configuration he angle of rotation for 150N/E 3.2 260N/E 9.9 400N/E 8.2 1200N educing the braking torque on basic module e can be 60, 165N/F 3.7 300N/F 198 10.5 120 345N/E 19.8 490N/E 8. 200NE 400N/E 9.8 520N/E 16.5 1920N 235N!E 440N/E 600N/E 16.5 2160N 265N/E 6.4 480 N/E 19.8 700N/E 6.5 24C0N 00N/ IE. Brake (Slu mac apprOx. AC X Slu) INTORQ BFK46B spring-applied brake en 7/2010 Technical data Dimensions Sizes 18-25 Size 31 d13 @ 图号 H7 d1 d d3 ds d d d dic d1 d12 did 30/35/40/45 6kM8196 217116 35/40/45/50 6xM023 4XM10110 40/45/50/55/60/65/70 6×M0279 154×M1014030232180851203536 25 199 8xM63601504×M16+7(0390390 43 Size h h h4 h5 l1 l3 SLO b min max 174E3.189 96.527511 108.13 600 206956105.611163511 80.6650 0.64 600 2412 0451.5°8° 2541107121.7131.745 125957 045173.569 135.750 60017312 0.5 515°6.5° 330149173 Manual release not available 600 2 1dH2:HbsihakeywayincordanceithDN6885/1-9ca10nybeusedforthe■*x70mm,sctinacordanewithDN685/3P9 bore diameter indicated (di up to the maximum standard braking torque. The dimensions l1: Connecting catle lengt of the shaft/hub connection for higher braking torques are to be determined in con junction w th thc manufacturer I m: ass in kg I Standard keyway according to DIN 6885/1-P9 n All dimensions in mm 1* 4 M16 otated by an angle of 4 in relation to illustration Noise-reduced designs The evolvent tooth profile, tried-and-tested over many years, The noise reduction required in many applications can be ensures the rotor/ hub connection is stable. The plastic achieved in two ways sleeve reduces backlash, thereby increasing the brake s service life. With size 31, noise is minimised by an o-ring 1. Impact-noise-reduced armature plate between the rotor and the hub The brakes operating noise can be minimised using special dam ping elements, which act as shock absorbers between the pole face and the armature plate 2. Noise-reduced aluminium rotor The rotor with its plastic sleeve offers numerous advantages and reduces rattling noises in the rotor/ hub connection INTORQ I BFK468 spring-applied brake I en 7/2010 Technical data INTORE Rated data Size P2o 1 P min 3 Jalu rotor Mass holding 2)release 2) to standard torque increased torque readjustment rotor thickness gcma assembly kgl assembly Kgi 20 1.0 12.0 77.8 1.2 155 IP20: Ccil power a: 20C in W 13: The friction lining is dimensioned so that the brake can be read usted a: least 2 tirnes ation of up to+10 w, depending on voltage selected Braking torques, depending on speed and permissible limit speeds Size Reference variable Braking torque at Aro [rpm] Max speed for characteristic torque at△r=100rpm 1500 3000 4.400 20 100 68 66 .00 3.000 31 IAs speed increases, so does wear Operating times The operating times listed are guide values. They are relevant the engagement time t1 increases by a factor of 5 far dC switching when the rated air gap slu and standard (approximately) The engagement time t1 increases if inch ing characteristic torque apply and the coil is warm. The operating mode is shorter than the over-excitation time of the bridge/ times specified are subject to leakages During AC switching, half-wave rectifier. Torque time characteristic, dependent o t: , Deiay time AC switching 2=Rise ti9 oi magement tims 十 '2=Disenyagerieni/ lin: e K t ?- Siipping time Time Maximum permis Transition Operating times [ms]1) rated value at switching energy operating frequency at s △r=100rpn connection Disengagement Sh fnl t12 80.0C0 168 1C6 l00 120.00 31 300.000 198 250 1)Operating times valic for 2C5 V DC coils INTORQ BFK46B spring-applied brake en 7/2010 Technical data Service life and wear The brake has to be adjusted when Slu max is reached. The Where the amount of friction energy per switching operation friction energy to be withstood up to this point is dependent is low, the brake's mechanical components can impose on a number of factors: in particular, the inertias to be limitations in terms of service life. In particular, the rotor/ braked, the braking speed, the operating frequency and the hub connection, springs, armature plate and sleeves are resulting temperature at the friction surfaces. For this subject to operational wear. The expected service life of the reason, no universal value for all operating conditions can standard design is around 1 million load alternations be given in respect of the amount of friction energy that Solutions that are optimised in terms of service life are can be handled before adjustment is required available in cases where a longer service life is required (consult the manufacturer In addition increased we ar should be exoected with vertical mounting Maintenance Brakes are components which are subject to a great deal The bFk468 can be adjusted when the maximum permissible of wcar. When installing the brake, it must be ensured that working air gap is reached(syu max). The dimensioning of the it can be easily accessed for inspection and maintenance friction lining allows adjustment to be carried out at least purposes. Intervals between inspections should be set in accordance with the expected service life and load. For nore information, please see the Operating Instructions Permissible friction energy Q perm depending on operating frequency S h 1000000 25 f00000 □I ascs93 1000 10 00 000 10000 Operating frequency sh[h-ll

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