Proiect_Asamblarea RD Prin Pene

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    CONŢINUTUL LUCRĂRII

    1. PARTEA TEORETICĂ:a) Cuprins

    b) Argument: prezentarea aspectelor teoretice şi practice inperspecti!a importan"ei şi utiliz#rii $n specialitate

    c) Con"inu%ul propriu & zis:

    Clasi'care( caracteristici tenice( ate e catalog *ceme structurale( mo e +unc"ionare Analiza comparati!# a i+eritelor tipuri Concluzii

    ) ,ibliogra'e

    -. AE/E

    0ocumenta"ii tenice( giul e operare şi $ntre"inere( manuale utilizare

    oi e catalog Alte materiale: C0 cu continutul integral al lucrarii 2 3or.oc) 4i

    ppt

    CERI5E:

    6ucrarea se !a e7tine pe 189- pagini( iar pe copert# se !amen"iona tema( specialitatea( numele caniatului( clasa şi anulabsol!irii;

    *cemele şi esenele !or ' inserate $n te7t şi !or a!ea num#r şienumire

     orme e tenoreactare:

    ormat A cm

    ont: Arial 11 sau Times e? Roman 1-( Reactare cu iacritice( pagini numerotate 6ucrarea !a ' elaborata si reactata ini!iual e caniat si !a

    +olosi terminologia speci'ca specialitatii 6egare cu spira Caniatul !a elabora un plan e sus"inere pentru ma7imum 189

    - minute( sub +orma unei prezent#rii Po?er Point sau pagin#?eb.

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    CUPRINS

    CUPRINS.................................................................................................................................3

    ARGUMENT...........................................................................................................................4

    1. TRANSMISII MECANICE..............................................................................................5

    1.1. Generalităţi...............................................................................................................5

    1.2. Transmisii prin roţi dinţate.....................................................................................5

    1.2.1. Caracterizare. Rol funcţional ............................................................................5

    1.2.2. Mecanisme cu roţi dinţate.................................................................................6

    1.2.3. Avantajele i dezavantajele transmisiei prin ro i din ate ș ț ț  ..................................6

    1.2.4. Clasificarea roţilor dinţate................................................................................7

    1.2.5. Materiale pentru roţi dinţate.............................................................................7

    1.2.6. lementele !eometrice ale roţilor dinţate.........................................................8

    2. ASAMBLĂRI I ORGANE DE ASAMBLAREȘ .............................................................9

    2.1. Preentare !enerală.................................................................................................9

    2.2. "sam#lări prin pene lon!it$dinale.......................................................................10

    2.%. "sam#lări prin pene paralele...............................................................................13

    2.&. "sam#lări prin pene dis'......................................................................................14

    3. ASAMBLAREA ROŢII DINŢATE................................................................................15

    %.1. "sam#larea prin pene...........................................................................................15

    %.2. Operaţii pre!ătitoare.............................................................................................15

    %.%. "sam#larea roţilor pe ar#ore...............................................................................16

    SĂNĂTATEA I SECURITATEA MUNCII ŞI PSIȘ ...........................................................19

    BIBLIOGRAIE....................................................................................................................20

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    "RGU()NT

    (e'anismele '$ roţi dinţate  sunt cele mai utilizate mecanisme în construcţiamodernă de maşini şi aparate.

    !"#$%!#&! #!'$()!*+ ! #('$*(# ,$)'!-& ) %!,#/* /)(# -(*!)'& -!),!#,$!-& #$) %!#&& !$/#+ &*(!-!#&! *(# ) %(),$'$$ (-$& #&%*!+ /) %()-#(* $/# $ &$%!%&.D$) !%&- (-$ %!*$-!-&! !)#&)!:&*(# %!#!%-$!-+ #$) #&%$$! ,& &&%/'$& !

    &*&&)-&*(# ,!)-/#$$ $ )&-&$&! /#!&'&*(# !%-$& ,&$),& ) !#& +/#+ ,& ($"$*$-+'$*& ,& +/#!#& &$-&)-&. P&%'$()!#&! !%&-(#! ,/%& %()%($-&)- *!"/)+-+'$#&! %()-$)/+ ! %!*$-+'$$ !)#&)!:&*(#.

    O #&%$$& !"(*/-+ ) !"#$%!'$& )/ & (!-& !-#$"/$ ,&%;- /)&$ )-;*+#$ ,& !%&&!%/ %;- & -$),& !$ /*- *! #&!*$!#&! !$ #&%$+ ! /)&$ %(-& %/ !-;- !$ !#$ ,&$)%(-/#$*& ,& !"#$%!'$&. A-&* ( !"#$%!'$& #!'$()!*+ -#&"/$& + $& %!#!%-$!-+ #$) /-$*$!#&!/)(# )(#& $ -(*!)'& %/ !:/-(#/* %+#(#! & !$/#+ #&%$$! ,(#$-+ %#&;),/

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    1. TR"NS(ISII ()C"NIC)

    1.1. Generalităţi

    T#!)$$$*& &%!)$%& /)- %!#!%-$!-& #$) #!(#-/* ,& -#!)$-& ! $%+#$$ $ #$) #!),!&)-/* &)&-$%?

     

    /)- -/#!'$$*& *! $)-#!#&! ) -#!)$$& #&&%-$ $&$#& $!# /)- /-$*& *!

    $)-#!#& $ $&$#&. S& %()$)& )(-!'$! %/ $),$%&*& 1 &)-#/ $)-#!#&! $ %/ $),$%&*& 2 &)-#/$&$#&! ,$) -#!)$$&.

    S%=&! /)&$ -#!)$$$ &%!)$%& &-& $),$%!-+ ) $.12.1

     T.M. (- $? #('$ %/ #$%'$/)& #('$ %/ &*&&)-& &*!-$%& !/ !#-$%/*!-& @%/#&*& *!)' %!"*/ !)#&)!:&

    < %$*$),#$%& @%/ ,$)'$ ,#&'$ ,$)'$ )%*$)!'$< %()$%&< &*%!-&< !/ %("$)!'$$ !*& !%&-(#!.

    1.2. Transmisii prin roţi dinţate

    1.2.1. Cara'teriare. Rol *$n'ţional

    A)#&)!:&*& /)- %&*& !$ $*& &%!)$& %/ #('$ ,$)'!-& %!#& -#!)$- $%!#&!,& #(-!'$& )-#& ,($ !#"(#$ $ /)- #&%&)- /-$*$!-& ) %()-#/%'$! #&,/%-(!#&*(# ,& / &)!*) -#!)$$$*& !/-(("$*&*(# $ -#!%-(!#&*(# *! !$)$ /)&*-& /-$*!:& -&=)(*($%& !$)$!#$%(*& $ ,$) $),/-#$! !*$&)-!#+ &-%.

    A)#&)!:/* & &%!)$/* %/ #('$ ,$)'!-& %!#& &-& *! -#!)$-&! ,$#&%-+ $(#'!-+ ! $%+#$$ ,& #(-!'$& ,& *! /) !#"(#& %(),/%+-(# @1 *! /) !#"(#& %(),/ @2.

     Roţile dinţate sunt organe de maşini %!#& !/ *! $$! *(# ,$)'$ ,$/$ ) (,#&/*!- & /#!&'&*& -&(#&-$%& )/$-& /#!&'& ,& #(-((*$#&.

    5

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    R(!-! ,$)'!-+ ()-!-+ & !#"(#&*& %(),/%+-(# & )/&-& pinion $ & #(-&-& %/

    -/#!'$! !/ $-&! /)=$/*!#+ $!# #(!-! ,$)'!-+ %(),/+ ()-!-+ & !#"(#&*& %(),/ &

    #(-&-& %/ -/#!'$! @$-&! /)=$/*!#+ .

    P#(%&/* %()-$)// ,& %()-!%- )-#& ,$)'$$ #('$*(# %():/!-& !*& /)/$ !)#&)!: )&,&! !$/#+#$$ $%+#$$ )&)-#/-& ! %&*(# ,(/+ #('$ ,$)'!-& & )/&-& an!renare.

    D$) /)%- ,& &,& /)%'$()!* !)#&)!:&*& (- $ +#'$-& ) -#&$ %!-&(#$$? angrenaje de viteză - ,&-$)!-& %/-$$*(# ,& $-&+ #&,/%-(!#&*(# ,& $-&+

    -/#"(#(/*(!#&*(# ,& !$() &-% &*& $$), %!#!%-$!-& ,&? (,/*& $%$ $$:*(%$$ /)%'$()!#& *$)+ #!(#- ,& -#!)$-& %()-!)- $-&& $$%&!#$ $ (!#-& !#$

    angrenaje de divizare < &)-#/ !!#!-& ,& +/#+ $ ) &)!* &)-#/ !!#!-& ,& #&%$$& !)#&)!:& %!#!%-$!-& ,&?

    (,/*& $%$ $ $:*(%$$ (*$%$-+#$ #&,/& #&%$$& %$)&!-$%+ #$,$%!-+

    angrenaje de forţă  &)-#/ !$)$ ,& #$,$%!- *!$)(!#& &-% !)#&)!:& %!#!%-$!-& ,&?

    (,/*& $:*(%$$ $ !#$ #&$-&)'+ !#& *! !#%$)$ ,$)!$%& %()-!%- "/) ) !)#&)!#& &*/)$&! $ )+*'$& ,$)'$*(#.

    A)#&)!:/* (!-& -#!)$-& $%!#&! ) !"&*& &)/#$.

    1.2.2. (e'anisme '$ roţi dinţate

    >) /)%'$& ,& #!,/* ,& %(*&$-!-& & ,&(&"&% -#&$ -$/#$ #$)%$!*& ,&&%!)$& !/ -#!)$$$ %/ #('$ ,$)'!-&? 1 &*&&)-!#& 2 $*& $ 3 %(*&&.

    Un me'anism elementar  '$ roţi dinţate ,&)/$- $*/ $ an!renaj  &-& (#!-

    ,$) două roţi ) !)#&)!#& $ un element suport-axe H  %!#& !-$!*$&!+ !&*& #('$*(# $&)'$)& %()-!)-+ ,$-!)'! ,$)-#& !%&-&!.

    1.2.%. "+anta,ele i dea+anta,ele transmisiei prin ro i din ateș ț ț

     Avantajele" #!(#- ,& -#!)$-& %()-!)- ,/#!"$*$-!-& $ $/#!)'+ ) /)%'$()!#& $ &*(!-!#& %!!%$-!-& (#-!)-+ #$,$%!-+ ,&%$ ,$&)$/)$ $ !"!#$- #&,/& -#!)$-&! /-$$ )-#

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    < /)%'$()!#&! %/ ((- *! $-&& #$,$%!-&< #!(!#-& ,& -#!)$-& ,$%#&-& @)/+#/* ,$)'$*(# &-& /) )/+# )!-/#!*.< -&=)(*($& #&-&)'$(!+ $ %(- #$,$%!-.

    1.2.&. Clasi*i'area roţilor dinţate

    ! D/+ (#! /#!&'&$ ,!)-/#!-&? #('$ ,$)'!-& %$*$),#$%& #('$ ,$)'!-& %()$%& #('$ ,$)'!-& &*%!-&.

     " D/+ (#$&)-!#&! ,$)'$*(#? #('$ ,$)'!-& %/ ,$)'$ ,#&'$ #('$ ,$)'!-& %/ ,$)'$ )%*$)!'$ #('$ ,$)'!-& %/ ,$)'$ I) !/ #('$ ,$)'!-& %/ ,$)'$ %/#"$.

    % D/+ ($'$! /#!&'&$ ,!)-/#!-&? #('$ ,$)'!-& %/ ,!)-/#+ &-$(!#+ #('$ ,$)'!-& %/ ,!)-/#+ $)-$(!#+.

    , D/+ (#! %/#"&$ *!)%/#$*(#? #('$ ,$)'!-& %/ #($* &(*&)-$% #('$ ,$)'!-& %/ #($* )&&(*&)-$% @%$%*($,!* ) !#% ,& %%.

     $. 2 R('$ ,$)'!-& %$*$),#$%& $. 3 R('$ ,$)'!-& %()$%&

    1.2.-. (ateriale pentr$ roţi dinţate

    R('$*& ,$)'!-& & (- %()-#/$ ,$)-#

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    < R(!-! %(),/%+-(!#& /)%'$()&!+ ) %(),$'$$ !$ #&*& ,&%;- #(!-! %(),/+ ,&%$-#&"/$& + $& &&%/-!-+ ,$)-#

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      pt  J !/* #()-!*  p# J !/* ,& "!+  st  J !#%/* ,& ,$$!#& #()-!* !* ,$)-&*/$  et J !#%/* ,& ,$$!#& #()-!* !* (*/*/$

    2. "S"(4LĂRI I ORG"N) 5) "S"(4L"R)Ș

    2.1. Preentare !enerală

    A!"*!#&! &-& (! $! ,& #&/)$/)& )-#

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    A!"*+#$*& )&,&()-!"$*& & %!#!%-$&!+ #$) !-/* %+ )/ & (- ,&()-! +#+,&-$(#!#&! %&* / $) ! /)/$! ,$)-#& &*&&)-&*& !!"*+#$$. L! !!"*+#$*& #$) #&!#& (# !ț ț,& #&%!#& %& !!#& )-#& %&*& ,(/+ /#!& & %#&&!+ ( #&$/)& ,& %()-!%-. C;),ț,&(#! $$*& /#!& &*(# ) %()-!%- /)- &*!-$%& !!"*!#&! &-& ,&()-!"$*+. D!%+ !!# $ț ț ș,&(#! $$ *!-$%& !!"*!#&! ! $)-#! ) %!-&(#$! !!"*+#$*(# )&,&()-!"$*&.ț

    2.2. "sam#lări prin pene lon!it$dinale

     !enele longitudinale J (#!)& ,& !!"*!#& ,&()-!"$*& %!#& -#!)$- (&)-& ,&-(#$/)& J & (*(&% *! $!#&! & !#"(#$ ! #('$*(# ,$)'!-& #('$*(# ,& %/#&! !/ ,& *!)'&$%/*!:&*(# (*!)'$*(# &-%.

     "sam#lările prin pene longitudinale  /)- !!"*+#$ ,&()-!"$*& ,& -$ !#"(#& J  "/-/% ,&-$)!-& -#!)$-$$ /)&$ $%+#$ ,& #(-!'$& $ ! /)/$ (&)- ,& -(#$/)& $ /)&(#$=$,+#$$ ,&*!+#$$ !$!*& ! "/-/%/*/$ !'+ ,& !#"(#&. O#!)/* ,& !!"*!#& &-& !)!()-!-+ )-#

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    $. 5Pene lon!it$dinale '$ str6n!ere 7de *i8are9 & %*!$$%+ )?

    înalte& denumite şi înclinate @$. 6!  *!-& @$. 6" %()%!& @$. 6%  &)&*& -!)&)'$!*& & ()-&!+ &%=$? !)+ $ %()-#!!)+ @$. 6,.

    $. 6

    P(- $ %/ !/ +#+ %+*%;$ @)! %+*%;$/* //#;), ()-!#&! $ ,&()-!#&! /)--!),!#,$!-&. L! &)&*& )!*-& %/ %!&-&*& #(-/):$-& @$/#! 7! %!)!*/* ,$) !#"(#& !#& (#!$ ,$&)$/)$*& &)&$ ()-!#&! ("'$);),/

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    L!  penele paralele (&)-/* ,& -(#$/)& & -#!)$-& #$) &'&*& *!-!*& !*&!%&-(#! :(%/* #!,$!* $$), #&+/- )-#& !'! /$(!#+ ! &)&$ $ /),/* %!)!*/*/$ ,$)

     "/-/%. S& &&%/-+ %/ %!&-&*& ,#&-& !/ #(-/):$-& @$/#$*& 11 $ 12.ș

     $.11 $. 12

    >) /)%'$& ,& #(*/* *(# /)%'$()!* &)&*& !#!*&*& & !#- )? ("$)/$-& ,& =$,!#& $ ("$*&.

     !enele paralele o#işnuite  & )-#&"/$)'&!+ &)-#/ -#!)$-&! (&)-/*/$ ,&-(#$/)& %;), "/-/%$$ /)- $!'$ ) ,$#&%'$& !$!*+. >) %!/* $&&*(# ("$*& J ) ,$#&%'$&!$!*+ J & (*(&%  penele de g'idare %!#& & $&!+ & !#"(#& #$) $)-&,$/* /)(# /#/"/#$ @$/#! 13.

    $. 13L/)$&! &)&*(# ,& =$,!#& & !*&& ) /)%'$& ,& ,&*!!#&! )&%&!#+ ! "/-/%/*/$.

    (*($#&! /#/"/#$*(# -#&"/$& *$$-!-+ *! %!/#$*& -#$%- )&%&!#& &$-&)'! +/#$*(# $%(#;),/*- #&$-&)'! *! ("(&!*+ ! !#"(#$*(#.

     !enele paralele & (*(&% & %!#+ *!#+ ) %()-#/%'$! ,& !$)$ !;), !!)-!:/*)&(!*$+#$$ "/-/%/*/$ %(!#!-$ %/ &)&*& *()$-/,$)!*& ()-!-& %/ -#;)&.

     "sam#lările prin pene montate fără str%ngere @$. 2.2 -#!)$- !#%$)! #$) %()-!%-

    ,$#&%- )-#& !#"(#& $ !)+ $ ) %()-$)/!#& *! "/-/%. A%&-& !!"*+#$ (- (*($  pene paralele cu capete rotunde @$. 2.2 ! !/ cu capete drepte ( $. 2.2 " $!-& ) %!)!*/* ,$)!#"(#& +#+ /#/"/#$ @$. 2.2 ! !/ %/ /#/"/#$ @$. 2.2 ". A%&!-+ /*-$+ !#$!)-+ @$.2.2 " /-$*$&!+ ,(/+ /#/"/#$ &)-#/ ! &$-! /*&! &)&$ ,$) *(%! !/#! $*&-!-+ ,& *!$:*(%/* &)&$ (*($), &)-#/ &-#!&! &$ ,$) *(%!/* ,$) !#"(#& #$) )/#/"!#&! /)/$-$- $*&-!-.

    A*-& -$/#$ ,& &)& /-$*$!-& *! !%&-& !!"*+#$ /)- &)&*& ,$% @$. 2.2 % $ &)&*&%$*$),#$%&. A!"*+#$*& #$) &)& *()$-/,$)!*& ()-!-& +#+ -#;)& /)- %&*& !$ )-;*)$-&) %()-#/%'$! ,& !$)$ $$), $/#& ) /)%'$()!#& !;), ( ()-!#& $ ,&()-!#& $*& $!$/#;), %(!$!*$-!-&! $&&*(# !!"*!-&.

    12

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      ! " %$. 2.2 A!"*+#$ #$) &)& ()-!-& +#+ -#;)&

    D$) !%&!-+ %!-&(#$& !% !#-& !!"*+#$*& #$) &)& !#!*&*& &)& ,$% $ &)&%$*$),#$%& @$/#! 10?

    $/#! 10#9 5e !idare 7*ără prestr6n!ere9 @$/#! 2. Pene paralele: 

    < O"$ )/$-& @$. 2ș< D#&-& @$. 3

      $.2 $.3P&)&*& !#!*&*& !/ & &*& (/& !#!*&*&. E(#-/* & -#!)$-& )/!$ & & &*& *!-!*&ț ț

    +#+ &&%- ,& +)!#&.U)&(#$ & $&!+ & !#"(#& %/ !:/-(#/* /#/"/#$*(#. S& %!*%/*&!+ *! &* %! &)&*&ș

    )%*$)!-& %;), -#!)$- &(#-/* )/!$ & & &*& *!-!*&.țC;), &-& )&%&!#+ ( !$ !#& %!!%$-!-& ,& -#!)$-& & (*(&% ,(/+ !/ -#&$

     &)& ()-!-& & !#"(#& ) !%&*! $ *!) $ ,&%!*!-& %/ 120 #!,&.ș șL/)$&! !#($!-$+ ! &)&$ &-& ,& @11H.13 ,.

    2.%. "sam#lări prin pene paralele

    A!"*+#$*& #$) &)& !#!*&*& & /-$*$&!+ & %!#+ *!#+ ) %()-#/%'$! ,& !$)$ &)-#/ ! -#!)$-& (&)-& ,& -(#$/)& $%$

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     (#! A (#! B (#! C

    $. 2.3 A!"*+#$ #$) &)& !#!*&*&

    P&)&*& !#!*&*& & &&%/-+ ,$) OL 6O @#&%(!),!- #$) -!),!#, !/ ,$) !*-& ('&*/#$.A!"*+#$*& #$) &)& !#!*&*& & %*!$$%+ ,/+ #(*/* /)%'$()!* ) asam#lări fixe $

    asam#lări mo#ile.L! !!"*+#$*& $& @+#+ ,&*!+#$ #&*!-$& )-#& "/-/% $ !#"(#& & /-$*$&!+ &)&

     !#!*&*& $!-& +#+ /#/"/#$.L! !!"*+#$*& ("$*& @%/ ,&*!+#$ !$!*& !*& "/-/%/*/$ !'+ ,& !#"(#& & (*(&%

     &)& !#!*&*& $!-& %/ /#/"/#$ @. $. 2.2 ".

    2.&. "sam#lări prin pene dis'

    D&)/$#&! &)&*(# (*($-& *! !%&-& !!"*+#$ $)& ,& *! (#! ,& &&)- ,& ,$% !!%&-(#!. P!#-&! $)$(!#+ ! &)&$ & $)-#(,/%& )-#

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    • C/ &%'$/)& ,#&-/)=$/*!#+

    $.5 !enele disc )&%&$-+ &&%/-!#&! /)/$ %!)!* !,;)% ) !#"(#$ ,$) !%&- (-$

    (*($),/) !!#+ ,& !%&!-! &)&*& *()$-/,$)!*& ()-!-& %/ -#;)& -#!)$- (&)-& ,& -(#$/)& #&*!-$ $%$.D&!!)-!:/* &)!* !* &)&*(# %/ -#;)& %()-+ ) *+"$#&! J %/ -#&%&! -$/*/$ J !-#;)$$ $)$'$!*& %! /#!#& ! !%'$/)$$ !#%$)$*(# !#$!"$*&.

     *a penele longitudinale montate fără str%ngere  )/ & )-;*)&% ,&!!)-!:&*&&)'$()!-& &$-;), -(-/$ *+"$#&! #&$-&)'&$ *! ("(&!*+ ! !!"*+#$$ $ $$), )&%&!#+ ($!#& /*$&)-!#+ !$!*+ ! $&&*(# !!"*!-&.

    P&)&*(# -!)&)'$!*& )/ *& /)- #(#$$ !%&-& ,&!!)-!:& ,$) %!#& %!/+ &#&%(!),+ (*($#&! !%&-(#! *! !#"(#$$ %/ ,$!&-#& !#$ %!#& /)%'$()&!+ ) %(),$'$$ #&*&

     &)&*& -!)&)'$!*& *+"&% )+ J *! &* %! $ %&*&*!*-& &)& %/ -#;)& J #&$-&)'! *!("(&!*+ ! !!"*+#$$ #$) %!)!*&*& ,& !)+.

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    C!*%/*/* /)&$ !!"*+#$ #$) &)& *()$-/,$)!*& & (!-& ,&+/#! ,/+ /#+-(!#&!%=&+?

    ) /)%'$& ,& ,$!&-#/* !#"(#&*/$ & !*& ,$) -!),!#,&*& ,$&)$/)$*&-#!)!*& ! &)&$ " J *+ $&! &)&$ $ = J )+* $&! &)&$ț ț

    *! &)&*& %/ -#;)& & (!-& ,&-$)! (&)-/* ,& -(#$/)& & %!#&

    -#&"/$& +

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    %.%. "sam#larea roţilor pe ar#ore

    S& #&!*$&!+?  & /#!&'& %$*$),#$%&

     & /#!&'& %()$%&.

    A!"*!#&! #( $*(# ,$) !-& & !#"(#$ & #&!*$&!+ %/ !:/-(#/* /#+-(!#&*(# (#!)& ,&ț ț! $)+?ș

    cu pană şi piuliţa @!$/#!#&! (-#$! ,&*!+#$$ !$!*& & !%& %/ !$"+ $ $/*$'+

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    6. G=&(#=$/ N. .!. ransmisii pin angrenaje. ,lemente de proiectare E,$-/#!O#$()-/#$ /)$$-!#& T$$(!#! 1997.

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    21

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