Proiect an, cric

8/14/2019 Proiect an, cric

1/27

TRANSILVANIA UNIVERSITY OF BRASOV

MECHANICAL ENGINEERING FACULTY

MACHINE ELEMENTS DISCIPLINE

YEAR PROJECT NO. 1

TELESCOPIC LIFTING JACK

STUDENT: APOSTOL ANDREEA STEFANIA FACULTY: MECHANICAL ENGINEERING

SECTION: AUTOMOTIVE ENGINEERING

YEAR: II

GROUP: 1711

SUPERVISER:

Eng: TODI- EFTIMIE ALINA

ACADEMIC YEAR:

2012- 2013

1


2/27

CONTENTS

Me!"#n$% !& '#('%(#)*!n

1+ ESTABLISHING THE LOADINGS ON THE ELEMENTS OF THE

,AC......3

2+ MAIN SCRE/

CALCULUS..........................++3

2+1+ C!!*ng )e

#)e"*#(.........................3

2+2+De*gn

'#('%(%............................3

2+3+ Ce'*ng )e e(&-(!'*ng

'!n$*)*!n...................

2++ Ce'*ng #) '!4!e$

)"ee.....................5

2+5+ B%'(*ng

'e'*ng..........................++6

3+ SECONDARY SCRE/

CALCULUS.......................7

3+1+ C!!*ng )e

#)e"*#(.........................7

3+2+ C#('%(% !& )e n%e" !& )"e#$ !& )e #*n '"e8 n%) 9(!'#)e$ *n*$e )e

e'!n$#" '"e8;

.............................73+3+ C!!*ng )e e

+FI?ED NUT

CALCULUS...........................++>

+1+ C!!*ng )e

#)e"*#(........................++>

+2+ C#('%(% !& )e n%e" !& )"e#$...................>

+3+ Ce'*ng )e

ne'..........................10

++ C!!*ng )e $*en*!n !& )e

n%)..................11

+5+ Ce'*ng )e n%) #) '!4!%n$

(!#$.................++12

+6+ Ce'*ng )e

'!((e".........................+12

+7+ C!!*ng #n$ 'e'*ng )e )%$ n%) )#) e'%"e )e n%) *n )e @#' !$ +12

2


3/27

5+CALCULUS OF THE

BODY.........................+13

6+CALCULUS OF THE

CUP..........................15

7+EFFICIENCY

CALCULUS..........................16

=+ THE METHODOLOGY OF DESIGNING A VERTICAL RATCHETMECHANISM++17

=+1+ Me'#n*

e)'.........................++17

=+2+ Te #n$(e (eng)

'#('%(%.....................++17

=+3+ Leng)ene"

'#('%(%........................++1=

=++ R#)'e) 8ee(

'#('%(%.......................+1=

=+5+R#)'e)

'#('%(%..........................++20

>+ TECHNICAL SECURITY /OR

RULES...................2

10+SUPPORTING STATEMENT REGARDING THE CHOICE OF THE MATERIALS

THE BLANS AND COSTRUCTIVE SOLUTIONS FOR THE MAIN PARTS OF THE

,AC9NUTS BOLTS;

.............................25

11+ TEHNICAL SECURITY STANDARDS OF

/OR...............27

12+REFERENCES.............................

..2=

1+ESTABLISHING THE LOADINGS ON THE ELEMENTS OF THE

TELESCOPIC LIFTING ,AC

3


4/27

F*g 1+1

2+ MAIN SCRE/ CALCULUS

2+1+ C!!*ng )e #)e"*#(

I) * '!en OLC 50 STAS 5002

2+2+ De*gn '#('%(%

L!#$ '#('%(#)*!n cQ N

DE207>01>2500=+1 NQQc === 1+1++05+1= NQ 1>250=

Inne" $*#e)e" !& )e )"e#$ 3d

DE00=>+23

50

207>03 mm

Qd

ac

c=

=

=

DE60+++0 MPaac =

C!!*ng )e )#n$#"$ )"e#$

I) * '!en )"#4e!*$#( )"e#$ T" 32


5/27

F*g 2+1

T#(e 2+1+

N!*n#(D*#e)e" P*)' Me$*% D*#e)e" E 33 25 26 30

2+3+ Ce'*ng )e e(&-(!'*ng '!n$*)*!n

Te )"e#$ 4*)'*ng #ng(e 2 $eg"ee

=

=

= 76+32>

6

2

2

arctgd

Parctg

A44#"en) &"*')*!n #ng(e G $eg"ee

=== 0=+7

2

30'!

12A0

2'!

G arctgarctg

12A0+++11A0= &!" )ee()ee(

Se(&-(!'*ng '!n$*)*!nG

2 +=25

25+2731161633

3

MPad

Mtt =

=

=

e$;#''!4(*9'!n$*)*!n

DE50DE0>+3>+=21+3>

22

22

MPaMPa ace

actce

==+=

+=

( )DE5DE10+++6

DE35332DE6+++2

12A0+++11A0

DE25+2731

535

5351>25012A0

3

1

3

1

0

22

33

2

0

2

3

0

3

mmmmdmmmmdd

Nmm

dd

ddQMM

c

c

c

ft

==

=+=+=

=

=

=

==


7/27

F*g 2+3

( )

>7

DE36

=

=

+==

l

lf

H

mmm

mHklkl

DE25+6

25

6

DE13336>7

DE2661332

=+025+6

255

3

2

3

3

*n*n

*n

mmd

d

d

A

Ii

mmmHl

mmlkl

i

l

l

f

f

===

=

=+=+=

===

===

B%'(*ng $!#*n

4(#)*' %'(*ng

a

c

f cc =

= 62+0335f &!" OL 50

70+30>=+062+0335 ==f

=>+721+3>

70+30>==c

Te #&e) '!e&&*'*en) &!" %'(*ng5++3=ac

' ac 9'!n$*)*!n #''!4(*e$;

3+ SECONDARY SCRE/ CALCULUS

3+1+ C!!*ng )e #)e"*#(

I) * '!en OLC 50 STAS 5002

3+2+ C#('%(% !& )e n%e" !& )"e#$ !& )e #*n '"e8 n%) 9(!'#)e$ *n*$e )e

e'!n$#" '"e8;

7


8/27

0+710;26329

1>250

;9

222

1

2=

=

=

apDd

Qz

MPapa 13++7=

N%e" !& )%"n

F*g 3+1

I) * '!en

=F

10F6

=

Leng) !& )e n%)DE=6= mmPzHpl ===

3+3+ C!!*ng )e e3=;10+++=903 mmmmDd =+=+=

DE3=533;6+++90 mmmmDD =+=+=

C!!*ng )e )#n$#"$*e$ )"e#$

I) * '!en )"#4e!*$#( )#n$#"$*e$ )"e#$ T" 60

8*) #*n $*en*!n 4"een)e$ *n F*g%"e 3+2+ #n$ T#(e 3+1+

=


9/27

F*g 3+2

T#(e 3+1+

N!*n#(

D*#e)e"

P*)' Me$*%

D*#e)e"

E 55+5 61 50 51

3++ Ce'*ng )e e(&-(!'*ng '!n$*)*!n

Te )"e#$ 4*)'*ng #ng(e 2 $eg"ee

=

=

= >5+255

>

2

2

arctgd

Parctg

A44#"en) &"*')*!n #ng(e G $eg"ee

=== 0=+7

2

30'!

12A0

2'!

G arctgarctg

[ ]= mm12A0+++11A0 &!" )ee( )ee(

Se(&-(!'*ng '!n$*)*!n

=5+2 G

2 9'!n$*)*!n #''!4(*e$;

3+5+ Ce'*ng #) '!4!e$ )"ee

Te )!"*!n !en) )#) #') !n )e '"e8 NmmMtA

( ) ( ) DE0>+>=0>5+20=+72

5+551>250

2 2

G2 Nmmtgtgd

QMM insIIt =+=+==

E&&e')*Je '!4"e*!n )en*!n c MPa

( ) ( ) DE21+23

3=50

1>250222

0

2

3

MPaDd

Qc

=

=

=

>


10/27

E&&e')*Je )!"*!n )en*!n t MPa

( ) ( )

DE77+5

3=50116

0>+>=0

16

03

3

MPa

Ddd

Mtt

=

=

=

EK%*J#(en) )en*!n e MPa

DE70DE>2+2577+521+23

DE=0+++60

22

22

MPaMPa

MPa

ace

ac

actce

==+=

=

+=

9'!n$*)*!n #''!4(*e$;

+ FI?ED NUT CALCULUS

+1+C!!*ng )e #)e"*#(

I) * '!en OL 50 STAS 5002

+2+C#('%(% !& )e n%e" !& )"e#$

N%e" !& )"e#$

F*g +1+

5+210;51609

1>250

;9

222

1

2=

=

=

apDd

Qz

= MPapa 6++5 &!" )ee()ee(

106 z 55==Trd

I) * '!en :

6 )"e#$

10


11/27

Leng) !& )e n%) mmHpII A

DE5>6 mmPzHpII ===

+3+Ce'*ng )e n%)

F*g +2+

Ben$*ng #n$ e#"*ng 'e'*ng

C#) *"!n n%) 9en$*ng;

( )

( )aii

ai

aii

MPa

mmPh

zhd

ddQ

=

=

=

===

=

35+106706+550

505+551>2503

DE=0+++60

DE706+5>06363+0

3

2

2

3

32

9'!n$*)*!n #''!4(*e$; C#) *"!n n%) 9e#"*ng;

aff

af

aff

MPa

MPa

zhd

Q

=

=

=

=

DE57+36706A550

1>250

DE35++30

3

9'!n$*)*!n #''!4(*e$;

++C!!*ng )e n%) $*en*!n

11


12/27

E


13/27

( ) ( ) DE60DE61+=

70==

1>2502222

MPaMPaDD

Qas

eg

s ==

=

=

9'!n$*)*!n

#''!4(*e$;

Se#""*ng 'e' MPaf A

DE55+++0

DE75+=1070

1>250

MPa

MPahDQ

af

af

ge

f

=

=

=

=

9'!n$*)*!n #''!4(*e$;

+7+C!!*ng #n$ 'e'*ng )e )%$ n%) )#) e'%"e )e n%) *n )e @#'!$

C!!*ng )e )%$ n%)

F*g +5

I) * '!en )%$ n%) M57+12>=22

70==

70==1>25017A0

3

1

3

1

22

33

22

33

NmmDD

DDQM

eg

eg

g

=

=

=

= 2+0+++15+0 )ee( )ee(

Te !en) *n )e 4*n NmmMs A

DE==+3532>7+12>=220>+>=0 NmmMMM ginsIIs ===

5+ CALCULUS OF THE BODY

13


14/27

C!!*ng )e $*en*!n !& )e !$

F*g 5+1+

( )

( )

( ) DE1570117DE50+++30

DE1177562002;29

DE20050150DE50+++30

DE10DE12+++10

DE7DE=+++7

67+++5

DE75570DE6+++2

1

#


15/27

C!!*ng )e 4*n 8*' '!n!(*$#)e )e '%4 )! )e #*n '"e8 MPapA

( ) ( )

MPap

pMPadd

Qp

a

a

c

0++25

DE2+205==

1>250222

0

2

=

=

=

=

9'!n$*)*!n #''!4(*e$;

C!!*ng '(*n$"*'#( (!))e$ '"e8 #n$ '(*n$"*'#( 4(%g 8*' 4"eJen) #


16/27

DE=0+++60

DE70+51=+1133+6

DE=+1123

25+27311616

DE33+623

1>250

DE2325235DE22

2222

33

22

3

MPa

MPa

MPad

M

MPad

Q

mmmmcdd

ac

actce

ci

f

t

ci

c

cci

=

=+=+=

=

=

=

=

=

=

===

9'!n$*)*!n #''!4(*e$;

7+ EFFICIENCY CALCULUS

E&&*'*en' !& )e )e(e'!4*' (*&)*ng @#'

I& %*ng # 4*g!) )! (*4 e)8een )e '"e8 e#$ #n$ '%4

( ) ( )22A0

535

535

2>

12A0

3

276+30=+7

76+3

3

222

33

2

0

2

3

0

3

2

2

G

2=

++

=

++

=

tg

tg

dd

dd

dtg

tg

c

c

=+ THE METHODOLOGY OF DESIGNING A VERTICAL RATCHETMECHANISM

=+1+Me'#n* e)':

16


17/27

F*g =+1

=+2+Te #n$(e (eng) '#('%(%

=+2+1 M!en)%( n'!J!*e)!" )!)#( DNEAM *)

DE3+121>1163+>55=50>+>=025+2731 NmmMMMM insfmit ==+=+==

=+2+2 Te #')*ng &!"'e !& !ne 8!"e" NFm A

DE350+++150 NFm =

I) * '!en F350N

=+2+3 Te '#('%(% (eng) !& )e #n$(e mmLc A

DE31+3=35011

3+121>11mm

FnK

ML

m

it

c =

=

=

n 1 !" 2 n!+ !& 8!"e"

n 1

1

=+2+1+ Leng) !& )e #n$(e mmLA

17


18/27

DE31A3>=5031+3=0 mmlLL c =+=+=

1DE500 == nformml

=+3+Leng)ene" '#('%(%

=+3+1+ Leng)ene" (eng) mmLp A

DE6>

DE=0+++50

DE>+3276>0+13>31+3>=

DE0+13>31+3>=35A035A0

mml

mml

mmlLLL

mmLL

mp

m

=

=

=+=+=

===

=+3+2+ Leng)ene" $*#e)e" mmdpe A

( ) ( )

DE120

DE2077+1>120

50>+327350113232 330

mPa

mmlLFnkd

ai

ai

pm

pi

=

=

=

=

D*#e)"%( e


19/27

( )

DE5+26DE5+261555A0;2++195A0

DE36+>=36+10==

DE6+7736+10==

DE36+1027+176A0=A0+++6A0

DE27+17=2

==

2

mmammda

mmhDD

mmhDD

mmbh

mmz

Db

me

mi

m

=

==

=+=+=

===

===

=

=

F*g =+2

=++2+ Ce'*ng )e "#)'e) 8ee( %n$e" )"ee

Ce'*ng )e '!g #) en$*ng MPai A

DE120

DE120+++100

DE10

DE10+++=

DE27+217==

0>+>=022

DE37+221027+17

36+1027+21733

1

22

1

MPa

MPa

mm

mm

ND

MF

MPab

hF

ai

ai

m

it

aii

=

=

=

=

=

=

=

=

=

=

9'!n$*)*!n #''!4(*e$;

Ce'*ng )e '!g #) e#"*ng MPaf A

DE100+++=0

DE3+121027+17

27+2171

MPa

MPab

F

af

aff

=

=

=

=

9'!n$*)*!n #''!4(*e$;

Ce'*ng )e '!n)#') %"'e !& )e '!g #) '"%*ng

DE120+++100

DE72+2036+1010

27+2171

MPa

MPah

F

as

ass

=

=

=

=

1>


20/27

9'!n$*)*!n #''!4(*e$;

Ce'*ng )e #e( !n 4!(g!n#( '!n)!%" #) '"%*ng MPas A

F*g =+3

DE120+++100

DE122102

DE17+>31213

0>+>=02222

MPa

mm

MPaa

M

as

t

as

t

it

s

=

=+=+=

=

=

=

9'!n$*)*!n #''!4(*e$;

=+5+R#)'e) '#('%(%

=+5+1+ C!!*ng )e #)e"*#(

I) * '!en OL 50 STAS 5002

=+5+2+ C!!*ng )e $*en*!n

L!'#)*ng "#)'e) *e *n

=512

26;1+++5A09

2

DE2622;6+++9

DE5+62336+102

36+>=;+++29

2

DE5105A0;6A0+++5A09

11

1

1

===

=+=+=

=++=++=

===

Dh

mmdD

mmhD

l

mm

pe

e

R#)'e) *e*n

DE162=+16127+17=

==1

DE25125=

2

112

mmbz

Dh

mmhl

m

t

=

=

=

=++=++=

20


21/27

F*g =+

=+5+3+ Ce'*ng )e "#)'e) #) e


22/27

5+102

5=

2

7+2=25+10

12+2172

e$;#''!4(*9'!n$*)*!n

DE=0+++60

DE>5+2112

7+2=2

112

2

11

22

=+=+=

===

=

=

=

=

ha

a

aF

MPa

MPad

af

af

b

f

F*g+=+5

Ce'*ng )e 4*n #) '"%*ng

DE=0+++60

DE>7+1>36+1012

7+2=2

MPa

MPahd

as

as

b

s

=

=

=

=

9'!n$*)*!n #''!4(*e$;

Ce'*ng )e 4*n #) en$*ng

22


23/27

DE120+++100

DE=+7512

36+107+2=2161633

MPa

MPad

h

ai

ai

b

i

=

=

=

=

9'!n$*)*!n #''!4(*e$;

>+ TECHNICAL SECURITY /OR RULES

Te #*n 8!" #&e) "%(e #"e:

- ,#' "e4#*" *& *) *(%"e 8*(( e #$e !n( 4e'*#(*e$ 4e!4(e

- ,#' * n!) *ne")e$ #) "#n$! (!#$ %) !n( *n 4(#'e 4e'*#(( $e*gne$ )!

(!#$

- T! 4"eJen) #''*$en) *& )e (!#$ * (*&)e$ #&)e" )e *n)e"Jen)*!n %n$e" *g

(!#$ 8*(( #(8# en%"e (!#$

23


24/27

- F!" # e))e" &%n')*!n*ng !& )e @#' *) * "e'!en$e$ (%"*'#)*!n

4e"*!$*' '!%4(*ng !& )e @#' '"e8

- /*(( n!) (*&) # (!#$ g"e#)e" )#n *n$*'#)e$ *n '#('%(#)*!n

- T! (*&) )e (!#$ *) 8*(( n!) %e )e "#)'e) $"*Je e'#n* 4"!J*$e$ *n )e

'#('%(#)*!n !n( (eng)ene"

-Ue !& #n )4e !& e


25/27

11+ TEHNICAL SECURITY STANDARDS OF /OR

One n%) (*&)*ng @#' * *n'(%$e$ *n )e (*&)*ng e'#n* !& 8*' '#%e %)

e 4"!J*$e$ # e"*e !& *n)"%')*!n #n$ e#%"e )! 4"eJen) #n$ #J!*$

#''*$en) #) 8!"+

L*e #n (*&)*ng e'#n* )e (*&)*ng @#' !%($ en%"e )e e(&-"#*ng

'!n$*)*!n e#n*ng )#) 8en )e @#' !4e"#)*ng )!4 *) 8*(( n!) (( e((!8 )e

#')*!n !& )e (*&)*ng )#+ Te e(&-"#*ng '!n$*)*!n * en%"e$ $e '"e8-n%)e'#n*+

Te %e" !& )* (*&)*ng e'#n* 8*(( e )"#*ne$ !n !8 )! 8!"

'!""e')(+ I) * "e'!en$e$:

- Te @#' 8*(( e %e$ !n( &!" #n%#( #')*ng

- I) 8*(( n!) e %e$ &!" (!#$ g"#)e" )en 1>250N+ F!" )* "e#!n 8e 8*((

#" #) # J**(e 4(#'e )e #


26/27

- Te @#' *) 8*(( n!) e 4%) $*"e')( !n )e g"!%n$ e'#%e *) "e*)#n'e

* %nn!8n+ In )* 8# %n$e" )e @#' 8*(( e *ne")e$ # 4(#)e &"! #

#)e"*#( %&&*'*en)( )"!ng )#) 8*(( n!) #((!8 )e (*$*ng !& )e @#' *n

!"*!n)#( 4(#ne

- Ce'*ng )e )e'n*'#( 4"!4e" &%n')*!n*ng !& )e @#' e&!"e %*ng *)

- Te"e 8*(( n!) e %n#))en$e$ (!#$ (e&) !n )e @#'

- Te @#' )!"#ge *) 8*(( e #$e %' )#) %-#e(*e $e&!"#)*!n

8*(( e #J!*$e$ *n $" 4(#'e %' )#) )e '"e8-n%) e'#n*

!=+

2+ DRAGHICI I+ +#+ In$"%#" $e 4"!*e')#"e *n '!n)"%')*# $e #*n* J!(+ I+

B%'%"e)* E$*)%"# Ten*'# 1>=1+

3+ DRAGHICI I+ +#+ O"g#ne $e #*n*+ C%(ege"e $e 4"!(ee+ B%'%"e)* E$*)%"#

D*$#')*'# * Pe$#g!g*'# 1>=0+

+ GAFITANU M+ +#+ O"g#ne $e #*n* J!(+ I+ B%'%"e)* E$*)%"# Ten*'# 1>=1

5+ ,ULA A+ +#+ O"g#ne $e #*n* In$"%#" 4en)"% 4"!*e')%( $e #n n"+ 1

Un*Je"*)#)e# $*n B"#!J 1>=6+

26


27/27

6+ ,ULA A+ +#+ O"g#ne $e #*n* J!(+ I+ Un*Je"*)#)e# $*n B"#!J 1>=6

7+ MOLDOVEAN GH+ +#+ C#('%(%( * 4"!*e')#"e# &!"e* #"!"*(!" $"e4)*+ B"#!J

E$*)%"# L%< L*"* 1>>=

=+ C%(ege"e $e n!"e * e

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Proiect an, cric