rosta english - Industrial and Bearing Supplies
Transcription
rosta english - Industrial and Bearing Supplies
Rubber spring ROSTA Suspension-Tensioner A Unique Structure And Operation Principles As A Multi-Functional Mechanical Elements Carry Out Stable Tensioning, Vibration Absorption And Noise Reduction. Rubber springs ROSTA are composed of metallic inner and outer shells and columnar rubber pieces. Columnar rubber pieces are press fit between the inner and outer shells which have 45° displacement. The spring characteristics are non-linear and columnar rubber pieces are compressed as they roll and are actuated. Thus, shaking motion is correctly transmitted and vibration and noise are absorbed at the same time. The tensioners are rich in elasticity. Permanent set is slight and the tensioners strongly resist impact loads and excel in durability. R U B B E R S P R I N G R O S TA 1. Large Torsional Angle A unique structure with rolling and compressing rubber, torsional angles can be allowed up to ±30°. 2. Ideal Spring Characteristics Not only non-linear characteristics of spring, but also other directions as upper, lower, left and right sides can be applicable. 3. Excellent Vibration and Shock-Absorbing Action A damping rubber has been adopted which is rich in elasticity, excellent in insulation of vibration. The intrinsic damping function of rubber is much larger compared with the metal, and comparatively obtains a significant damping effect. 4. Simple Structure, Excellent Durability Composition of 4 rubber pieces, metallic inner and outer shells -- light and compact. The preliminary compression rubber pieces are built in, elaborating an excellent durability for the fluctuations and the impact load. 5. Daily Maintenance Free The metals do not come in contact each other so that they will not wearout. Moreover, it will not get affection of water and dust so that daily maintenance is unnecessary. 6. Not Affected By Temperature Change Operation temperature range: -40°C to 80°C. R U B B E R S P R I N G R O S TA Suspension-Tensioner Equipped With Spring, Damper And Bearing Function. Rubber spring ROSTA is a suspension unit. It is a unique, simple structure with columnar rubber pieces pressed to fit in between metallic inner and outer shells, and even from Machine Industry to transportation, removal equipment, recreation facilities, and the amusement equipment can be used as a multi-purpose mechanical elements. Moreover, metallic portions do not come in contact, it is excellent in durability because of a simple structure, and also daily maintenance is unnecessary. Suspension-tensioner equipped with spring, damper and bearing function Spring function Damper function Bearing function Torsional angles can be allowed up to± 30°. The spring characteristics are nonlinear and torsional rigidity increases a s the load inc re a se s. T he to rqu e characteristics are decided by the length of the tension. Moreover, loads in all directions of tensile, compressive and shear loads, can be supported. Inner friction of rubber bodies is more than 1,000 times compared with a metal (spring steel). This allows early stopping of vibration caused by a low amplitude or shock during resonance. Tensioners are used as shock absorbers, vibration isolators, anti-vibration supports and other purposes. Tension rubber suspensions can transmit high-period shaking motion while absorbing vibration. Normally, durability of bearings lowers if transmission of shaking motion or oiling or greasing is not adequate. The bearing function provided by the tensioners can replace ball and needle bearings without requiring routine maintenance service. Compression function Bearing function Shock absorption function Hinge function Tension function Shaking function Spring function Multi-functions, multi-purposes - ROSTA Suspension Unit Shapes of inner and outer shells, materials, installation method and two single parts connected shapes - There are six kinds of basic units ready to serve. It is a multi-purpose mechanical element that can be used on wide-range freely. FULL LINEUP TENSIONER DEVICES The basic tensioner unit - SE model is integrating the inner shell and metal arm, and the outer shell and flange. The RSE model is a belt tensioner combining an aluminum alloy roller with the SE model. And the NSE model is a chain tensioner combining a sprocket idler with the SE model. ANTI-VIBRATION MOUNTINGS T he dual- conne c te d suspe nsion unit, D O -A type, is combined to bracket to form the antivibration mounting ESL model and V model. ESL model is the best for anti-vibration at the medium and low frequency and V model is suitable for comparatively high frequency. All models are designed as applicable for various directions of installation, compression, tension and shearing and allows the load in any direction. OSCILLATING MOUNTINGS Shaking mount and drive head suppor ting a vibration conveyer or sieving machine can be designed by the ROSTA suspension unit. There are two main categories of oscillating mounting machines to excite oscillation, one is by crankmotion and the other is by vibrating motor. The former type, AU model, is a shaking mount used together with the drive-head RST model. And the latter type, AB model, is not only a mount, but can also be used as an anti-vibration mounting of the low frequency. ROSTA Tensioner Maintains Appropriate Tension Of The Belt, And Automatically Absorbs Slack, Vibrations, And Shocks Of The Chain. The ROSTA tensioners can be used for tensioning, pressure rollers, and dumpers. The basic structure has an arm pre-installed to the inner shell of the ROSTA suspension unit. The outer shell has a flange shape. Installation can be done using only one center bolt, which allows easy installation for maintenance of appropriate belt tension, absorption of chain slack, the scraper of the conveyor belt, and pressure rollers. Moreover, the arm has two mounting holes (normal and hard) so that the idler mounting position can be selected according to the operating load range. The lineup consists of three models: the standard SE model with a bare arm, the RSE model with a pre-installed pulley idler, and the NSE model with a pre-installed sprocket idler. ROSTA Tensioner SE model Tensioner unit + Pulley idler RSE model +Sprocket idler NSE model ¢ Structure Outer shell SE MODEL Rubber Inner shell RSE MODEL NSE MODEL Pulley idler Tensioner unit 4 Tensioner unit Sprocket idler Tensioner unit ROSTA Tensioner ò Load range : 0N to 2600N ò Torsional angle : 0° to 30° ò Operating temperature range : –40°C to 80°C Tensioner 15 ROSTA TENSIONER SE MODEL ¢ Specification Model Load range F [N] Maximum displacement S1 [mm] Maximum displacement S2 [mm] Mass [kg] SE-11 SE-15 SE-18 SE-27 SE-38 SE-45 0~80 0~135 0~350 0~800 0~1500 0~600 40 50 50 65 87.5 112.5 30 40 40 50 70 90 0.20 0.40 0.60 1.70 3.55 6.40 * Load range is for the normal position specification. Hard position load range ≒ 1.25 × Normal position load range. ¢ Dimension S1 (normal) S2 (hard) CAD CAD T F normal T F H1 H2 L hard G C P E A R D B N M Unit [mm] Model A B C D E G H1 H2 L N P R T M CAD file No. SE-11 SE-15 SE-18 SE-27 SE-38 SE-45 51 64 79 108 140 200 20 25 30 50 60 70 36 48 58.5 80 107 160 35 45 58 78 95 115 6 8 10.5 15 15 18 5 5 7 8 10 12 80 100 100 130 175 225 60 80 80 100 140 180 90 112.5 115 155 205 260 22 30 35 52 66 80 8 8.5 8.5 10.5 12.5 12.5 5 6 8 10 12 12 8.5 10.5 10.5 12.5 20.5 20.5 M6×20 M8×25 M10×30 M12×40 M16×40 M20×50 SE1 SE2 SE3 SE4 SE5 SE6 Ordering Information SE - 15 Size 16 ROSTA TENSIONER RSE MODEL ¢ Specification Model Load range F [N] RSE-11 RSE-15 RSE-18 RSE-27 RSE-38 RSE-45 0~80 0~135 0~350 0~800 0~1500 0~2600 Maximum displacement S1 [mm] Maximum displacement S2 [mm] 40 50 50 65 87.5 112.5 Applicable belt Max. rotational speed [min-1] Mass [kg] A B B C −− −− 8000 8000 8000 6000 5000 4500 0.25 0.60 0.80 2.15 4.75 8.30 30 40 40 50 70 90 * Load range is for the normal position specification. Hard position load range ≒ 1.25 × Normal position load range. ¢ Dimension L2 L3 L1 S1 (normal) CAD D1 CAD M1 F B D H1 F G M A Unit [mm] Model A B D D1 G H1 L1 L2 L3 M M1 CAD file No. RSE-11 RSE-15 RSE-18 RSE-27 RSE-38 RSE-45 51 64 79 108 140 200 20 25 30 50 60 70 35 45 58 78 95 115 30 40 40 60 80 90 5 5 7 8 10 12 80 100 100 130 175 225 35 45 45 60 90 135 8 11 13 14 18 22 8 11 9 11 17 17 M6×20 M8×25 M10×30 M12×40 M16×40 M20×50 M8×45 M10×60 M10×60 M12×75 M20×100 M20×140 RSE1 RSE2 RSE3 RSE4 RSE5 RSE6 * For detailed dimensions of the tensioner part, refer to the dimension table of the SE model. * For details of the pulley idler, refer to Options on page 19. Ordering Information RSE - 15 Size The latest CAD data can be downloaded from our website. ¶ h t t p : // w w w. m i k i p u l l e y. c o . j p / CAD CAD The CAD mark indicates that CAD data is available by CD-ROM. The CAD file No. represents the file name in the CD-ROM. 17 ROSTA TENSIONER NSE MODEL ¢ Specification Model NSE-15 NSE-18 NSE-27 NSE-38 NSE-45 Load range F [N] -35S -35D -35S -35D -40S -40D -50S -50D -60S -60D -80S -80D -100S -100D -120S -120D Maximum displacement S1 [mm] Maximum displacement S2 [mm] 0~135 50 40 0~350 50 40 Applicable chain Mass [kg] 0.55 0.70 0.75 0.90 0.83 1.1 2.1 2.5 2.2 2.8 4.5 5.4 7.5 9.4 8.5 10.9 35 35 40 50 0~800 65 50 60 0~1500 87.5 70 0~2600 112.5 90 80 100 120 * Load range is for the normal position specification. Hard position load range ≒ 1.25 × Normal position load range. ¢ Dimension S1 (normal) M2 CAD F D Y F B H1 U CAD L3 G M A Unit [mm] Model NSE-15 NSE-18 NSE-27 NSE-38 NSE-45 -35S -35D -35S -35D -40S -40D -50S -50D -60S -60D -80S -80D -100S -100D -120S -120D A B D G H1 L3 U 64 25 45 5 100 7 9 79 30 58 7 100 7 24 108 50 78 8 130 8 28 140 60 95 10 175 13 40 200 70 115 12 225 13 70 Y adjustment range 19-41 24-37 35-54 39-50 35-54 39-50 41-79 47-73 41-79 47-73 60-97 67-90 90-155 108-136 90-155 116-129 * For detailed dimensions of the tensioner part, refer to the dimension table of the SE model. * The symbol "S" at the end of the size indicates a single row of sprocket, and "D" indicates two rows of sprockets. * For details of the sprocket idler, refer to Options on page 19. Ordering Information NSE - 15 - 35S Size 18 Sprocket nominal designation M M2 CAD file No. M8×25 M10×55 NSE1 M10×30 M10×55 NSE2 M12×40 M12×80 NSE3 M16×40 M20×100 NSE4 M20×50 M20×130 NSE5 ROSTA TENSIONER Options Idler/Bracket ¢ Pulley Idler RA Model Unit [mm] B d d1 C D A L1 Model A B C D d d1 E L1 Bearing RA-11 RA-15/18 RA-27 RA-38 RA-45 13 16 22 39 48 7 9 12 15 15 9 13 16 22 60 30 40 60 80 90 8 10 12 20 20 12 15 18 28 28 3 6 6 8 10 35 45 60 90 135 608 ZZ 6200 ZZ 6301 ZZ 6304 ZZ 6304 ZZ * Fixing bolts and nuts for the pulley idler are accessories. * Material: Aluminum alloy. E ¢ Sprocket Idler N Model N-15-35D Unit [mm] N-38-80D B Model L T N-15 T d1 d DH O.D B N-27 B B d1 d DH P.D O.D d1 d P.D O.D P.D N-18 B N-38 N-45 T L N-45-100D,120D Single row: S -35S -35D -40S -40D -50S -50D -60S -60D -80S -80D -100S -100D -120S -120D O.D P.D B 66 60.89 9 75 69.12 9 89 81.37 12 95 85.61 12 108 98.14 15 127 112.70 15 140 123.30 15 DH −− 50 −− 54 −− 63 −− 64 −− 69 −− 76 −− 78 d d1 10 30 10 30 12 37 12 37 20 52 20 52 20 52 L T −− 14.4 −− 21.5 −− 26.8 −− 34.5 −− 43.9 −− 53.4 −− 68.9 4.4 4.3 7.3 7.1 8.9 8.7 11.9 11.7 15.0 14.6 18.0 17.6 24.0 23.5 Teeth Bearing 20 6200 ZZ 17 6200 ZZ 16 6301 ZZ 14 6301 ZZ 12 6304 ZZ 11 6304 ZZ 10 6304 ZZ * Fixing bolts and nuts for the sprocket idler are accessories. * The symbol "S" at the end of the size indicates a single row of sprocket, and "D" indicates two rows of sprockets. Double row: D ¢ Bracket WS/WD Model J U T S K G D B CAD CAD H1 H2 A F E C Unit [mm] Model Applicable tensioner A B C D E F G H1 H2 J K S T U CAD file No. WS-11/ WD-15 WS-15/ WD-18 WS-18/ WD-27 WS-27/ WD-38 WS-38/ WD-45 WS-45/ WD-50 SE,RSE,NSE-11 SE,RSE,NSE-15 SE,RSE,NSE-18 SE,RSE,NSE-27 SE,RSE,NSE-38 SE,RSE,NSE-45 46 58 74 98 116 140 45 55 70 90 110 140 30 32 38 52 55 66 7 7 9.5 11.5 14 18 30 40 50 65 80 100 13 13 15.5 21.5 24 30 11.5 13.5 16.5 21 21 26 27 34 43 57 66 80 35 44 55 75 85 110 10 12 20 25 35 40 7.5 7.5 10 12.5 15 20 4 5 6 8 8 10 6.5 8.5 10.5 12.5 16.5 20.5 5.5 6.5 8.5 10.5 12.5 12.5 WD1 WD2 WD3 WD4 WD5 WD6 The latest CAD data can be downloaded from our website. ¶ h t t p : // w w w. m i k i p u l l e y. c o . j p / CAD CAD The CAD mark indicates that CAD data is available by CD-ROM. The CAD file No. represents the file name in the CD-ROM. 19 ROSTA TENSIONER Design Check Items ¢ Selection ò RSE Model ò NSE Model Find the belt size, belt appropriate tension (required tension), and belt deflection angle q. Using the easy selection graph below, select the size from the intersection of the belt size or appropriate tension and the belt deflection angle q. The appropriate tension varies depending on the number of belts. For chain transmission, no excessive initial tension is required on the chain because of the engagement with the sprocket. Therefore, the chain tensioner only needs to apply small tension sufficient to eliminate slack. Select the tensioner size appropriate for the chain size from the table below. In this case, the set angle of the tensioner should be 10 to 15°. For a longer chain, consider the weight of the chain itself. ROSTA mounting angle is set to 15°. Q 5000 RSE-45 Belt appropriate tension (required tension) [N] RSE-38 RSE-27 1000 RSE-18 500 RSE-15 RSE-11 100 50 10 120 130 140 150 160 Belt angle Q for mounting the tensioner [ ° ] Reference Ls Q dp Dp Dp: Large pulley diameter dp: Small pulley diameter C: Distance between shafts Lb: Length of the belt used T0: Belt appropriate tension C Belt length:Le=2C + P(Dp+dp) (Dp+dp)2 + 4C 2 2 Span length:Ls= C2 – (Dp–dp) 4 Belt deflection:L=Lb – Le Belt angle:Q=2sin-1· Ls (Ls+L) Tensioner setting load:F=T0·cos( 20 Q ) 2 Chain size NSE size 35S 35S 35D 35D 40S 40D 50S 50D 60S 60D 80S 80D 100S 100D 120S 120D NSE-15-35S NSE-18-35S NSE-15-35D NSE-18-35D NSE-18-40S NSE-18-40D NSE-27-50S NSE-27-50D NSE-27-60S NSE-27-60D NSE-38-80S NSE-38-80D NSE-45-100S NSE-45-100D NSE-45-120S NSE-45-120D ¢ Spring Characteristics ò Torsional Angle - Load Curve 45 SE- 2000 Q F 38 SE- 1000 27 SE- 500 400 18 Load F [N] 300 SE- 200 15 SE- 100 11 SE- 50 40 30 20 10 5 10 15 20 25 30 Angle Q [ ° ] ò Torsional Angle - Displacement Conversion 110 SE -4 5 S 100 Q 90 8 -3 SE Displacement S [mm] 80 70 7 -2 SE 60 50 /18 -15 SE 40 11 SE- 30 20 10 5 10 15 20 25 30 Angle Q [ ° ] * Spring characteristics are normal position specifications. The latest CAD data can be downloaded from our website. ¶ h t t p : // w w w. m i k i p u l l e y. c o . j p / CAD CAD The CAD mark indicates that CAD data is available by CD-ROM. The CAD file No. represents the file name in the CD-ROM. 21 ROSTA TENSIONER Design Check Items ¢ Idler Setting ¢ Installation l Always set the idler on the deflection side of the chain/belt. l Adjust the positioning notch on the flange part of the ROSTA For forward reverse rotation, set the idlers on both sides. tensioner to the designed position. Installation is made easily by placing a mark corresponding to the notch on the supporting plate on which the ROSTA tensioner is to be installed. This notch can also be used as a detent. l To apply tension from the outside of the chain/belt, set the idler on the side of the smaller sprocket (pulley). On the other hand, to apply tension from the inside, set the idler on the side of the larger sprocket (pulley). Flange part l Install the ROSTA tensioner on the machine using the attached hexagonal bolt (A). Check the strength of the machine installation part and flatness of the installation surface. If the ROSTA tensioner cannot be installed directly on the machine, use the bracket (WS/WD model). l Set the chain tensioner so that three or more teeth of the sprocket idler are engaged with the chain. Hexagonal boltl (A) l Excessive tension on the chain/belt dramatically shortens the life of the chain/belt as well as the life of the bearing. Allow appropriate looseness. As a guide, the setting angle is about 10 to 15°. l To apply tension from the inside of the V belt, use a V pulley idler. For a timing belt, use a timing idler. l The tensioner mounting bolt has a strength category of 8.8. Tighten it with the following tightening torque. Bolt size Appropriate tightening torque [N·m] M6 M8 M10 M12 M16 M20 10 25 50 90 210 410 Bracket l Hold the outer shell of the ROSTA tensioner with a spanner, and tighten the attached hexagonal bolt (A) to secure the ROSTA tensioner. When the ROSTA tensioner is used with an angle close to its allowable angle, use a torque wrench to tighten it at the specified torque. Hexagonal bolt (A) l Install the sprocket idler to the ROSTA tensioner. First, secure the supporting bolt (D) firmly to the arm with the retaining nut (B). After that, adjust the sprocket idler within the specified installation range (catalog Y dimensions) to align it with the travel path of the chain, and secure it with two nuts (C). Supporting bolt (D) Retaining nut (B) Nut (C) Arm l Always set the idler on the inside of the arm. If it is necessary to set it on the outside of the arm, set it as close to the arm as possible. In this case, the allowable torsional angle is ±15° or less for the maximum. (Outside) (Inside) * Avoid oil or grease on the rubber (NR) because it has insufficient oil/grease resistance. 22 Tensioner 23 APPLICATION 40 Motor Support Base Conveyor Centering Equipment Belt Cleaner Support Roller Suspension Cleaner Brush Suspension Carrier Roller Anti-Vibration Segregator Support Vibration Motor Support Base See-Saw Support Crane Vibration Isolation and Sound Proofing Suspension Vibration Isolation & Sound Proofing 41 Safety Precautions (Please read prior to use) Please read carefully through the instruction manual and the technical information for proper use and safety. In this manual, safety precautions are classified into "DANGER" and "CAUTION". l When death or serious injury may result by mishandling ¢ 2.Mounting precautions ò Tighten bolts or screws completely. Depending on the tightening adjustment of bolt or screw, exceptionally dangerous situations such as product damage or performance degradation could occur. Always use a calibrated torque wrench and clamp at the tightening torque specified by Miki Pulley. Tighten the bolts with the torque specified by the bolt manufacturer unless otherwise specified. l When disability or only physical damage may result by mishandling Equipment use (atomic energy, aerospace, medical treatment, transportation, or various safety devices) that may result in serious bodily injury or loss of life directly by mechanical failure or mishandling, careful examination is necessary. Contact us for further information. The company has taken all possible measures to produce a quality product; however, please pay attention to safety measures for the machine in case anything goes wrong. ò Do not turn on the power of the equipment. It is very dangerous if the driving part starts by accident while mounting the product. Be sure that the main power of the equipment is turned off. ¢ 1.Structural precautions ò Use a safety cover. Touching the product during operation could cause injury. Place a safety cover to avoid any accident. Additionally, set up a safety mechanism for quick stop of the product when opening the cover. ò Do not use the product in a flammable or explosive atmosphere. The parts are supported by rubber. In some applications, they may become charged and produce sparks during discharge. Do not use the product near flammable liquids or in the presence of gas and other explosive air particles. ò Use the product within the specified maximum tolerance. The installation of the product must be performed within the specified maximum tolerance. Using the product with more than the maximum tolerance could cause damage or adverse effect on the equipment. ò Wear protective equipment. To avoid any injur y during installation of the product, make sure to wear protective equipment such as safety glasses or gloves. ò Carry and mount the product by ò Set up a safety mechanism. The driven and driving sides could be completely detached in case the product is damaged. Set up a safety mechanism such as a safety brake to avoid any danger. 42 using a hoist. Lifting of a heavy weight could cause back injury. Use a hoist when carr ying or mounting the product. ¢ 3.Cautions during operation ò Do not touch the product during operation. Touching the product during operation may cause injury. Make sure not to touch the product during operation. ò When abnormal noises or vibrations occur, stop operation immediately. If abnormal noises or vibrations occur during operation, improper mounting should be considered. Do not leave the situation as it is. It may cause damage to the equipment itself. Also, for reasons other than above, the belts and other screws may loosen or become defective even if the product is mounted correctly. ò Do not use the product in an environment that could cause harmful effects. D o n ot u s e th e p r o d u c t i n a n e nv i r o n m e nt where chemicals may spill, humidity is high, or temperature is too high or too low. ¢ 4.Cautions for maintenance and inspection ò Do not turn on the power of the equipment. It is extremely dangerous if the driving part starts operating by accident while dismounting the product. Make sure that the main power of the equipment is off. ò Do not dismantle the product. We will refuse to take responsibility as to the damaged product that is dismantled, remodeled or repaired by a third party except our company and the designated company. Therefore, for the product that the assembly process or procedure of dismantlement is described in the manual, we will not be responsible as well. Please use our service network for repair and dismantlement. ¢ 5.Cautions for disposal ò Do not leave the product around where young children may play. ò Ask a waste-control-collection company for disposal. ò Operate the product within the "maximum permissible torsional angle." U s i n g t h e p r o d u c t o u t s i d e t h e "m a x i m u m permissible torsional angle" may damage the product or have harmful effects on the equipment. Always operate the product within the specified "maximum permissible torsional angle." Please note that this safety precautions and specification described in each manual may be changed without prior notice. Contact Miki Pulley for additional information or questions on these precautions. ò Operate the product within the "permissible loading force." Using the product outside the "permissible loading force" may damage the product or have harmful effects on the equipment. Always operate the product within the specified "permissible loading force." ò Operate the product within the specified “maximum permissible misalignment.” U s i n g t h e p r o d u c t o u t s i d e t h e "m a x i m u m permissible misalignment" may damage the product or have harmful effects on the equipment. Always operate the product within the specified "maximum permissible misalignment." 43 Please Consult Our Website. 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