catalogue No wp ( E ) MAI(ISHIN Worm Gear Speed Reducers

Transcription

1 catalogue No wp ( E ) MAI(ISHIN Worm Gear Speed Reducers

2 Single recluction: St.'rrrdard Ratios: 10, 15, 20, 25,30, 40, 50, 60, lllr{tr r,,lrts,rr.' avcrrlarl,',. Ulr(rn r lij{':,1 Standard assembly AB- r.v I-?I J J,t Dimensions in millimeters Size A AB B BB CC E F H HL LL M N G Z Inputshaft OutpulShaft Wsighl Hs u O t8x x I x x I 52O oo it xg x ro x x r"ry o so " A 8x ao o 1N 385?3O O O 23O 32O x t4x s ' x x OO x5, Ox AL r oit ptus Size A AB B BB CC E F H HL LL M N G z InpUIshan OutDut shatt * x x U x x o ffi x ox s O ? ?7O x x r I x x O x x O x x zffi O s 45 14x x7 150,0 Weighl

3 Pfease indicate output shaft direction "up" ot "down". size A AB B BB BC C CC E1 E2 F M N G Z Inputshatr OuFut6hafr Weight x x 't x x x x ' xS l8x 7 1' d x zox d 580d l6x x I l-, A-.:- I F_ AB. l lf_is -F -+l I lr t l l i ll---!.+.-r-n- I I i ll -Al r I ll HS J r t:vl () L IIY () -T I Legs for universal mounting type are avaitable on request, A A B A C B D B E C C F H H L L L Z x L 40 TXV M 6x 15 4x 't M 6x x ' M 6x 18 t A M 8x M10x25 40 OU Q M12\28 22 JZ ? M12x S0 r M14x M16x35 OR '14 x 5.5

4 Allowable overhang-load Overhang- load coeff iciency Makishinko standard practice for single reduction worm gear speed reducers Table 2 60 B.W.A Chain transmission O.H.L(kgl Size O.H.L(ksl Gear lransmission 125 V-belt transmissron 290 bu Flat belt transmission zov 1,5 25 ' 00 bcu et l 600 r55 r 600 r75 r Service tactors Prime mover Duration ol service per day Driven machine load clascifications Moderale shock Heavy shock Electric motor Occasional 1 /2 hour , Multi-cylinder internal Combustion ngine Single cyhnder internal Combustron engine lntermittent 2 hours 0,80 0, hours 't hours IDU. /c Occasional 1 /2 hour lntermittent 2 hours 090 tla O hours hours t3u Occasional 1 /2 hour Intermittent 2 hours tzc 150. /b 1 0 hours r50 / hours I ta i,'ll(rwir(l sef rrr.r, ldctrlrs al)r)lv for dl)l)lie atrorls tnvolvrrrg frequcnt StarIs and stops Electric motor Occasional 1 /2 hout lntermittent 2 hours 100 tzc hours tzc 150 I hours 150 I t3 200 Explanatory notes 1. Time specified for intermittent and occasional service refers to total operating time per day. 2. Term "frequent starts and stops" refers to more than 1O starts per hour. "ORDERING INFORMATION" 1. SHAFT POSITION & STYLE 2. TYPE OF REDUCER SHAFT ARRANGEMENT 4. RATIO Permissible transmission horsepower and torque on output shaft 100 R B : WORM HORIZONTAL AT BOTTOM W : WORM HORIZONTAL AT TOP K : OUTPUT SHAFT VERTICAL A : UNIVERSAL TYPE CENTER DISTANCE OF WORM & WHEEL R : RIGHT-HAND L : LEFT.HAND U : OUTPUT SHAF UP D : OUTPUT SHAFT DOWN X POSITION OF OUTPUT SHAFT, LOOKING FROM INPUT SHAFT '10 STANDARD RATIO: THROUGH 60 Size Input/Ratio f R.P,M N.m kw N.m kw Nm kw N.m kw N-m kw N.m 't , o.o , o o , ,07 15,7 0, 'r o o o ,2 0, o 't

5 Permissible transmissaon horsepower and torque on output shaft Size Input Ralio RPM KW Nm kw Nm kw Nm kw Nm kw Nm kw Nm kw Nm KW N.m 50 1 Eoo 1il ? r Q o r A o27 s o o r o t1l r o o o 52 r'r o r r 'J ' Q o r r S l l Q r O JJI r s I 94 37A r A I I 'L O r o7 1qq0 162 ees r r I I l t I 710 I rb r ? \ r I '? t I ? I ' t gis ogoo 6to 6010 sl s6jo rro I I I I I IJJ r I /O I ? r r t5/ r / r r t o r I

6 Selection of speed reducers Input revolution {r.p,m.} Input revolution achieved through direct coupling, belt, pulley, etc. Makishinko worm gear speed reducers can be supplied for maximum input revolution of up to 2.OOO r.p.m., but generally for 600-1,8O0 r.p.m. When the input revolution is lower than 6OO r.p.m., especialty 100 r.p.m., select a higherranked type, considering reduction efficiency and output tofque. Lubricate sufficiently. Torgus/kW The torque to start revolution is always larger than that required to maintain it. Therefore. select a speed reducer on the basis of the torque required for starting. Relation between horsepower and torque: x n*_n(r.p.m) T(N.m) 9550 (N'm): x kw 95so N(r.o'm) Overhang load Overhang load is a sort bending load. For example, if a speed reducer shaft of 200N'm output torque is equipped with a sprocket wheel of 150 dia. the following result is attained: o.h.l.: r!ry't) :=299 =267s1111 R(m) lf the load of 267 kg is larger than the allowance of overhang load. select a sprocket wheel of a larger diameter to reduce the overhang load. lf the allowance of O.H.L. is determined beforehand, radius of the corresponding sprocket wheel is obtained by using the formula bejow: o_ TxO.H.L. coefficient 200x ?f'76-:v.ur. OJI-L Thus, a sprocket wheel of over 1SOmm dia. is suitable. Overhang load coefficient and allowance of Makishinko Speed Reducer are' shown in Table-2. Temperature rlae of worm-gear speed reducer Since worm-gears involve large friction, longtime operation results in heating of the unit. The thermal limits are: (1) The thermal difference between the oil in the tank and the ambient temperature is approx.5ooc. (2) Max. temperature of the Housing Surface is approx. 80oC(varies with revolution speed and oil volume). Parts list and exploded drawing 6 Tv fir U f : t ; 62; t9 I 0 II t't +ql l t r i 1 Case 2 Worm wheel 3 Input shaft 4 Output shaft 5 Output shaft cover 6 Input shaft cover 7 Input shaft cover 8 Input bearing 9 Output bearing l0 Oil seal input 1 1 Oil seal output 12A O" ring 13 Oil guage 14 Oil plug 15 Drain plug 16 Key 17 Bolt input 18 Bolt output 19 Shim 35 Packing Above exploded drawing is for model W but component parts are basically common for B, K and A. Makishinko Go.,Ltd , TANIMACHI 7-CHOME, CHUO-KU OSAKA,JAPAN TLX:J63709 GEARMFG TEL : FAX: