thuc hanh cang tam.pdf

B GIO DC V O TO

TRNG I HC NHA TRANG

KHOA K THUT GIAO THNG

THUYT MINH TRANG B NG LC

Chuyn :

THI CNG LP T H NG LC VI NG C

CHNH LP T TRC, LP T SAU

GVHD: Ths. Nguyn nh Long SVTH: Nhm 7

1. Nguyn Thnh Tin

2. Phng Minh Ton

3. Trn ng Trng

4. Hunh Ngc Tun

5. Nguyn Vn Tun

Nha trang, thng 12 nm 2012

TRANG B NG LC TU THY GVHD: TH.S NGUYN NH LONG

SVTH: NHM 7 Trang: 2

Li ni u Sau khi hc xong mn Trang B ng Lc. Nh s hng dn ca thy Ths. Nguyn nh Long v cc bn trong lp. Cc thnh vin trong nhm hon thnh chuyn hp c giao vi ta Thi cng lp t h ng lc vi ng c chnh lp t trc, lp t sau. y l mt chuyn hay. Tuy nhin, gii quyt vn ny cn phi am hiu rt k v my mc thit b h ng lc v cn phi c kinh nghim thi cng thc t. Mc d th, cc thnh vin trong nhm ht sc c gng tm t liu, gio trnh, c ti liu v kt qu cui cng hon thnh phn chuyn c giao. Chuyn hon thnh ng thi gian quy nh l nh s gp sc ca cc thnh vin trong nhm v s hng dn nhit tnh chu o ca thy gio hng dn. Do vy, cc thnh vin trong nhm xin gi li cm n chn thnh nht i vi thy v cc bn trong lp gip . V di y l ni dung ca chuyn . Do cha c nhiu kinh nghim v kin thc thc t nn khng khi trnh s sai xt. Mong thy v cc bn sa cha v gp c th hon thnh tt hn nhng chuyn sau.

Xin chn thnh cm n !



PHN A: NG C CHNH LP T SAU L qu trnh nh tm my chnh theo h trc lp

Qui trnh lp rp h ng lc t li v mi. u tin lp trc chn vt, tip theo lp cc trc trung gian, trc y v,v cui

cng my chnh c nh tm theo h trc bng phng php o lch tm v gy khc.

QUI TRNH LP T H NG LC



I)GII THIU CHUNG V CON TU - Tu nh c li co v compozit FRP di 15m, gn ng c DIEZEN YANMAR MODEL 4 CHE cng sut 70 sc nga, tc quay 2300 vng/ph. - ng knh chn vt ca tu l 800mm.

II) KIM TRA BN V - Trc ht, xc nh ng tm trc ca y cacte my v chn vt - im th nht ca ng tm trc nm trn vch ngn trn hm my v cch mt trn ng trung tm tu 300mm - im th 2 nm cch thanh dm ngang 500mm. V ng thng ni 2 im ny li.

XC NH V TR LP T

MY TU

- Khe h ca y cacte my v

hp s n y v tu ti thiu

t 30 n 50mm. Chng ta

phi dnh khng gian lp

t thit b chu lc trc my.

-Trong trng hp ny ng

tm h trc chn vt nm pha

mt trn ng i tm tu

500mm

-Thng thng khong cch

gia vm ui tu v im mt

u cnh chn vt ti thiu phi

ln hn 12,5 % ng knh

chn vt

- ng knh chn vt ca tu l 800mm. Do vy khong cch gia ti thiu phi l 100mm. Suy ra khong cch t mt ngang vm ui sau cng n ng tm trc chn vt l 500mm

- K tip chng ta xc nh chiu cao lp t my da trn ng tm trc va xc nh c.



- i vi my tu ny khong cch gia tm cotto hp s v chn ng c l 81mm. Do vy chiu cao lp t my bao gm lun dy ca thanh lt b my phi nm cch trn ng tm trc 81mm.

Hnh nh v con tu



III)LP T H TRC CHN VT - Chun b cc dng c cn thit xc nh v canh chnh tm my.

- u tin kim tra xem tu c t cn bng trn gi hay cha.

- thun tin cho vic o

c lp cc thanh g o vo hai

bn mn tu.

- T phn mp nh ra ca

hai thanh g o cc khong

bng nhau bn mn tri v

mn phi. sau v mt ng

ngang trn mt phng ui tu

t phn mp tu nh ra ti 2

thanh g.

- Kim tra ng thng ny bng thc rivo.

-Trn mt phng ui tu v mt ng thng song song vi ng nh trc trn.

Xc nh trung im ca 2 ng thng song song ny.



xc nh cao trc chn vt v h tr vic lp t sau ny.

Ni hai trung im ca hai ng thng ny li vi nhau bng mt ng thng.

c lng v tr lp t ng bao chn vt. Tip theo ct mt l 1 tm thi

Xc nh trung im ca vch ngn trc ng c. Trc ht o phn pha trn vch xc nh trung im. T trung im ny th dy di xung, v mt ng trc thng. Tm ca trc chn vt nm trn ng trc ny cch sng vin 300mm. Gn khung g chnh tm vo im tm trc va xc nh.



Lp thanh g vo ui tu. Thanh g nm trn ng tm trc chn vt. o khong cch t mp vm ui tu n u trc chn vt trn thanh g l 500

mm.

Ko di dy ch nh tm t thanh g trn vch ngang ui n g kp nm

vch ngn u my. Ko cho si ch nh tm ny cng ra.

Trn ng chnh trc o khong cch n chn my xc nh v tr t my.



Xc nh dc t my c pha trc v sau my. o khong cch bn tri v bn phi tnh t u ch nh tm.

Dng thc rivo iu chnh phng chun ca my. u tin l pha trc v sau my, sau l bn phi v bn tri ca tng my. C nh my sau khi chnh

Dng thc rivo iu chnh phng chun ca my. u tin l pha trc v sau my, sau l bn phi v bn tri ca tng my. C nh my sau khi chnh

V 3 ng thng giao nhau vi si ch nh tm xc nh tm qua ng t

ng bao chn vt. Ly ng ch trc ra v che l li. ni cc ng ct ngang t giao im.

Dng compa v ng trn khoan lp ng bao chn vt. Khoan l t ng bao chn vt.



y l g dng lp ng bao chn vt. G ny ch dng ring cho cc tu v nha.

Lp ng bao t chn vt vo g .

T bn trong tu a ng bao chn vt ra ngoi, kim tra di nh ra ca ng bao.

Ko di ng ch nh tm cho n i qua ng bao chn vt. iu chnh khong cch pha trn, pha di, bn tri v bn phi ca ng sao cho tm ca ng trng vi dy ch nh tm.

Xc nh v tr ng tht chnh xc v tm thi c nh n.



Tng t iu chnh g ng bao chn vt trong bung my sao cho dy ch nh tm trng vi tm ca ng. Xc nh v tr chnh xc ca ng bao. Sau tm thi c nh ng li.

Lp cht ng bao pha ngoi ui tu dn c nh n vi thn tu v nha. T ngoi pha ui tu t trc chn vt vo trong ng bao.

Kim tra h ca trc chn vt bn trong ng bao. iu chnh trc sao cho

ng tm trc trng vi ng tm ng bao. Lp cc vng m vo ng bao chn vt, trit tiu lc ca trc, thng

thng ta s dng 3 vng m i vi trc chn vt c ng knh d nh hn 80 mm, vi ng knh ln hn ta s dng 4 vng m.

Lu lp khe h ming ca cc vng m khng trng ln nhau nhm trnh

nc r r qua tcke. Sau cng lp t chn chn vng m.



Nu trc chn vt nh ra khi mt ui ng bao qu di cn lp gi trc dng ch nhn vo cui ui tu trc chn vt.

Trc ht lp vng km anot chng n mn. Bi than ch mu ln mt cn ca trc kim tra cn tip xc gia c chn vt v trc chn vt.

- Kim tra du ch ca trc chn vt tip xc vo mt cn pha trong ca c chn vt.

- ng cht lappet vo trc chn vt sau lp chn vt vo.

Lp cht ch vo ai c chn vt, b cong v p cht tht st hm ai c. Sit cht vng km chng n mn vo pha c chn vt sao cho n khng to lc

cn vi dng chy nc



Tng t nh phn lp t pha chn vt kim tra cn tip xc ca mt bch trc chn vt pha bung my

Lp t bch trc chn vt bng cc u c hm. Sit cht hai c hm li

IV) LP T BNH LI y l trc bnh li v cc ph kin. nh tm trc li vm ui trn tu lp t trc bnh li. Khoan l lp trc

bnh li. Lp ng bao bng g fix trc li vo l khoan.

Lp ng bao bng g fix trc li vo l khoan. Lp trc bnh li vo ng bc g fix. Lp bnh li vo trc li.



Lp cht ky trc li vo tu

Lp thit b iu khin thy lc. Pha bn tri l thit b li thy lc, bn phi l tay n bnh li chng c ni

vi nhau bi thanh ni.



V) LP T MY

1)NH TM H TRC Lp g nh tm A vo mt bch trc chn vt o cc khong cch t ra mt bch n u gn tm trc. iu chnh v tr si

ch nh tm n nm ngay trn tm trc



Xc nh tm trc pha u my.

Dng qu di xc nh v tr tm.

Ct si ch nh tm vo khung v cn si ch ny ra

Gn thit b nh tm B vo mt bch trc chn vt

Kim tra khong cch gia u kim v si ch ng tm trc

Xoay trc v kim tra khong cch gia u v ng ch tm lun bng

nhau.

2)CNG CHNH LP MY CHNH

Kim tra v tr cc bulong lp my.

Kim tra phng v tr lp my.

Kim tra phng ca my bng thc rivo.



Kim tra phng gia hai my.

Th dy di gia trc tm tu. Ln lt thc hin cc ng tc tng t pha

trc v sau my

Xc nh v tr bulong

t mt thanh st thng ln my vung gc vi giao im qu di. o

khong cch t giao im qu di my n cc tm ca chn my bn tri v bn

phi. Xc nh v tr cc bulong trc v sau my.

V ng tm bulong chn my trn my

Xc nh cc v tr bulong th nht trn my bng cch t mt ci thc trn

my vung gc vi giao im.

K tip xc nh cc v tr bulong th 2 v th 3 chiu theo v tr bulong th nht.



Khng c xc nh v tr bulong th 3 cn c theo v tr bulong th 2

Kim tra v tr bulong th nht v th 3 bng cc ng cho. Hai ng cho

ny phi bng nhau.

Khoan cc l lp bulong trn my. t thanh lt chn my ln trn my sao

cho n thng hng vi cc l bulong

Th my vo my.

Xit tm cc bulong chn my.

Ni tuct hp s st vi mt bch trc chn vt

Kim tra khe h gia mt bch chn vt v tuct hp s

Kim tra ngp gia mt bch trc chn vt v tuct hp s

Kim tra song song gia mt bch trc chn vt v tuct hp s

Kim tra li song song gia mt bch trc chn vt v tuct hp s

Kim tra li ngp gia mt bch trc chn vt v tuct hp s



3)KIM TRA THEO PHNG PHP LCH TM V GY KHC

Lp mt bch trc chn vt vi tuct hp s. Tm thi xit chng li.

Xit tht cht cc bulong chn my



4)LP T NG X THI

i vi h thng x t phi cao hn mt nc bin.

ngn nc bin chy ngc vo my u ra ca ng x phi nh cao hn mt

nc 50 mm.

Lp t lc nc bin vo cc ng dn

trnh lc b rung lp ng ni mm vo ng cao su gia van thng bin v lc

nc bin.

Lp t h thng ng dn nhin liu.

H thng ng dn cng thng cng tt.

5)LP T TAY S V V LN

Lp t tay iu khin ga s

Lp v ln li



Lp t cp iu khin vo tay ga b iu tc v vo hp s.

Thao tc tay s



PHN B: NG C CHNH LP T TRC My chnh c nh tm trc trong bung bng phng php quang hc

dng ng ngm

- Qui trnh lp rp h ng lc t mi v li. Dng cho tu ln, nh my hin i.

- Phng php ny p dng ng tu theo tng on trong bung my l tng

on ring.

- Ly trc khy my chnh lm chun, cng tim bng quang hc

- Lp trc chn vt v cc trc trung gian, trc y.

- Trc khy my chnh v trc chn vt l 2 trc chun c nh tm theo

phng php o lch tm v gy khc, kim tra bng phng php o ti

trng b sung trn cc gi .

YU CU CHUNG

Cc tu c ln trn 10.000 DWT th

trang b ng lc, rt to v nng n

hng trm tn v vy khng th cu

ton b my lp rp.

ng c Burmaister-Vain

K hiu 74TBF160

Cng sut 9.400cv, n=115v/ph,8

xylanh c D=760mm

Kch thc L:14.300mm

B:6.200mm

H:12.570mm.

Trng lng: 400 T

V vy ch lp t di tu theo tng

tng on cu kin.



MT S HNH NH V MY CHNH

I) B MY CHNH

1) Kt cu b my chnh

B my l khung thp kt cu vng chc, c hn trc tip xung y v cc

sn tu .B my bao gm cc thnh phn sau:

- Hai thnh ng 1 chy dc song song hai bn tm tu, hai tm tu, hai tm mt b my 2, trn c hn cc tm lt 3. Cc m gia cng ngang 4 c phn b u theo chiu dc 2 bn. Hai tm gia cng dc 5, v cc tm ngang 6, ging hai thnh ng vi nhau. Hai tm gia cng dc 5, v cc tm ngang 6, ging 2 thnh ng vi nhau. Tt c c lin kt vi nhau v vi v tu to thnh mt b khung nn mng vng chc t my chnh. Ty theo thit k, i khi gim nh trng lng ng thi to iu kin d dng thi cng hn, cc m gia cng ngang 4, gia cng dc 5, thm ch thnh ng 1, c khot cc l tng i ln, nhng vn m bo cng chu lc ca b my.



Tn kt cu T l

Chiu dy thnh ng 1 >= 1,6 ln chiu dy ngang y tu

Chiu dy tm mt b my 2 >= l,4 ln chiu dy thnh ng 1

Chiu dy tm gia cng dc 5 v m gia cng ngang 4

>= 1,4 ln chiu dy ngang y tu.

Khong cch gia cc m gia cng ngang 4

= 1,3 ln chiu dy cc tm kt cu dc v ngang tng ng ca v tu.

Bng chiu dy cc kt cu ca b my

Tuabin v ng c in khng c nhng xung lc do kh chy v qun tnh nh ng c Diesel, ng thi tc cao, nn gn nh, chnh v vy kt cu b my cho php gim nh hn.

Trong tt c cc trng hp, b my chnh phi m bo cc yu cu ch yu sau: - Kt cu vng chc, khng c php bin dng hoc x dch trong sut qu trnh hot ng ca my chnh k c khi c s c v my. - Phi d kin c cc b mt hoc mt phn cc b mt gia cng ti xng v iu kin gia cng ti bung my s c nhiu kh khn. - B tr cc tm lt ph hp vi chn my. Ngi thit k phi c y cc s liu v chn my, chiu rng, chiu dy thn my khong cch gia cc tm bulong theo chiu dc v chiu rng my, chiu cao t mt tip xc chn my n tim trc cNhng s liu ny thng phi kho st o c thc t, ch khng th cn c vo catolog n thun. Cc s liu v chn my cng chnh xc bao nhiu, th b my cng c thi cng lp rp di tu thun li by nhiu.

B MY DI TU ANG THI CNG



Yu cu b my

Kt cu vng chc, khng c php bin dng hoc x dch trong sut qu trnh

hot ng

Phi d kin c cc b mt hoc mt phn cc b mt gia cng ti xng v

iu kin gia cng ti

bung my s c nhiu

kh khn.

B tr cc tm lt ph

hp vi chn my. Cc

s liu v chn my

chnh xc th thi cng

lp rp di tu s thun

li. S liu thu c da

trn kho st o c

thc t.

Hnh nh: B my b nt do Khng cng vng

2) Lp t v gia cng b my di tu

My c lp trc tip trn b mt cc tm lt c gia cng hoc cc cn nm

vi chiu dy t 30-40 mm.

Sai lch gia ng tm b so vi ng tm h trc trong mt phng ngang 8

mm (tri hoc phi)

m bo khe h v chiu dy tm lt

Cn chnh v hn b my vo v tu

Gia cng mt tip xc vi chn my.

Kim tra phng mt b, tip xc

cc tm lt

Kim tra bng gia cng, cong

vnh ca mt b my , trc khi hn

vo v tu.

Cc ch tiu k thut trong lp t v gia cng b my chnh c nu trong bng sau:

i tng kim tra Sai lch cho php

- Sai lch khong cch A- v tr ca b my k t vch pha li ca bung my

- Sai lch v chiu di L v chiu rng B ca b my. - Chnh lch chiu cao C ca tm lt theo chiu rng ca b my. - Chnh lch chiu cao D gia cc tm lt theo chiu dc b my. - Sai lch khong cch E t tm h trc n mt cc tm lt - Theo chiu dc: - Theo chiu ngang:

10mm

-5mm n +10mm



- Sai lch gia ng tm b my so vi ng tm h trc trong mt phng ngang

8mm

- khng song song gia tim dc b my so vi ng tim h trc



- Chnh lch chiu cao gia cc tm lt - Bng ng thy v thc thng kim tra cc tm lt i din nhau theo chiu rng b my.

- Chiu dy cc tm kt cu b my - Dng c o 2 im tip xc nh: thc kp, banme, compa.

- bng gia cng - Bng kinh nghim mt thng, hoc so snh vi mu chun.

- bng phng ca mt b my hoc mt tip xc ca tt c cc tm m lt vi tu c ln.

- Dng cc ly nc

- vn xon( cong vnh) ca mt b my, trc khi hn vo v tu.

- Bng ng thy v thc thng t ngang theo chiu rng b my trn cc mt chun b tr ti ngang y, iu chnh b my trc khi hn. iu chnh pha mi tu trc sau n pha li.

PHN A: NH TM NG C- MY CHNH

I)LP T KHUNG CHN MY

Khung chn my c t trn cc tm lt g vi chiu dy bng chiu dy tm

cn kim loi d kin.

Dng bulong tng chnh

nh tm n theo ng

tm l thuyt h trc.

Dng kch thy lc

nng h khung chn my

nh tm.

Kim tra bin dng

khung chn my bng dng

c quang hc

II)NH TM MY CHNH

- My chnh c nh tm trc trong bung my bng phng php quang hc

mt ng ngm hoc hai ng ngm. Cch ny thng p dng cho phng php

ng tu theo tng on trong bung my l tng on ring. Sau ly trc

ng c my chnh lm chun, dng 2 ch ngm gn v xa, cng tim bng quang

lc, doa cc l ca h trc. Sau lp trc chn vt v cui cng l cc trc

trung gian, trc y. Theo cch ny th h ng lc c lp t mi v li. Nhng



khi lp cc trc trung gian, trc y th phi nh tm theo 2 trc chun l: trc c

v trc chn vt bng phng php o lch tm v gy khc, kim tra bng

phng php o ti trng b sung trn cc gi .

III)KP CHT MY CHNH TRN B MY DI TU

My chnh c kp cht trn b my bng bulong thng qua cc tm cn.

Qui trnh lp v kp cht ng c trn cn nm thp

- Xc nh chiu cao cn tng v tr chn

my gia

cng, sau khi nh tm my chnh.

- Co, r b mt dc tip xc ca tm cn, v

a vo tng v tr chn my.

- y tm cn tnh tin vo cho n khi tip

xc tt v cht vi chn my

- Khoan cc l bulong ca chn my cng vi

cn v b my. Sau xit cht bulong.

- Kim tra li ton b: ng tm trc c

vi h trc. Kim tra co bp trc c. V kt thc qu trnh kp cht ng c.

PHN B: CNG TIM H TRC

I)YU CU CHUNG

Thng thc hin vo ban m

My chnh c nh tm v kp cht trn my

Khoang ui th kn nc xong.

Gi treo trc chn vt pha ui tu c kp cht

V tu v tr cn bng.

II) QUI TRNH CNG TIM BNG QUANG HC

1) Cch tin hnh

Trc khy my chnh lm chun, my chnh c nh tm v kp cht trn

my.

nh tm ng ngm theo ng tm ca trc khy ng c.

t ch ngm gn ti vch pha li ca bung my

iu chnh ch ngm trng vi tm vng ch thp chun trong ng ngm.



2)nh tm ng ngm trn bch my chnh.

Qu trnh ny a tm vng ch thp trong ng ngm trng vi tm quay ca

trc khy ng c bng b g chuyn dng

nh tm ng ngm bng hai ch ngm.

ng ngm c nh tm trn trc khy ng c.

Hai ch ngm t v pha li so vi ng ngm.

ch ngm gn t cch ng ngm 2-3 m v ch ngm xa 6-8 m

V tr t ch ngm c

t trn vch bung my hoc

sng ui.



3) Cch tin hnh cng tim h trc bng quang hc

Ti v tr A ui tu t ch ngm xa v ti vch bung my B t ch ngm

gn. C hai ch ngm u c bng n ~40W chiu sng quan st t ng

ngm.

Ln lt iu chnh ch ngm gn, sau n ch ngm xa, sao cho tm ca

hai ch ngm u nm trng vi tm vng ch thp ca ng ngm

- Sau a ch ngm vo cc v tr trung gian nh: vch ngn, b , sng

ui tu, gi treo trc chn vt.. khng mt ch ngm trung gian no che

khut tia sng t ch ngm xa n ng ngm.

- Sau khi cng tim h trc, tin hnh ly tm ch ngm, dng compa vch vng

trn gia cng v vng trn kim tra.



PHN C: NH TM V LP H TRC

I) CC BC TIN HNH NH TM H TRC THEO LCH TM

V GY KHC

a) Doa l sng ui tu, lp ng bao trc, doa ti ng bao lp trc chn vt v

ton b thit b ng bao v chn vt vo tu.

b) t trung gian ln b, t cc on trc ln sau xit cht np

c) Dng bulong cn chnh chn o, tnh ton lch tm v lch gy

khc theo o c.

d) Sau khi xc nhn chun th vic nh tm hon thnh.

e) Kim tra ln cui, tin hnh lp rp h trc.

nh tm h trc bng phng php o lch tm v lch gy khc

nh tm h trc bng phng php o lch tm v lch gy khc

Kim tra lch tm v gy khc bng thc thng v thc l



II) LP H TRC

1) Lp ng bao trc

- i vi ng knh trc ng bao D >400mm cn ch sau

- Ti l sng ui phi c hai on lp ghp di t nht 300 -500mm

- Ti vch pha mi, on lp ghp vi vch t nht di 100 240mm

- ng bao c kp cht vo v tu sau khi cn chnh ng tm vi tm h trc.

2)Lp trc chn vt v chn vt ( thc hin di DOCK)

- Trc c a vo ng bao theo chiu lp rp.

- Tin hnh kim tra khe h lp rp pha mi v pha li



3) Lp bc trc chn vt

G gai-c hoc vt liu khc

Nh lingophon, cao su,

Textolit.vv.



III) LP CHN VT

Cu t c chn vt v gn vo trc chn vt

Xit bulong vn cnh chn vt vo c chn vt



bo v trc khi n mn. Dng m kn bng ch, ng hoc cao su mt tip

xc ca np bo v, ai c vi may .

IV) LP TRC TRUNG GIAN

- Trc c a vo cc trt nm trn bulong tng chnh

- Tng chnh bulong nh tm theo lch gy khc v lch tm.

- o, gia cng v co r cc tm cn chn .

- a tm cn vo v tr, khoan, doa v kp cht trn b v kp cc bch ni

vi nhau.

Kp cht bch ni.

- Bch ni c kp cht bng bulong.

- Kim tra khe h bng thc l 0,05mm khng lt su qu 7mm



V)LP CM KN NG BAO, CM KN VCH NGANG V PHANH H

TRC

1)Cm kn ng bao

- Nhim v l khng cho nc t ng

bao trc r r vo bn trong tu



2)Cm kn vch

Cm kn nc vch ngang c b tr

ngay vch ngang pha li ca cc

khoang kn nc v bung my nhm

ngn chn khng cho nc t hm

h trc vo bung my

- C bn ging nh cm kn ng bao

3)Phanh h trc

- Kim tra tip xc ca ai phanh vi

vnh phanh

- Xc nh chiu dy tm cn m chn phanh

- Sau khi lp xong kim tra s hot ng ca phanh khi ng m v b mt phanh

bng thc l 0,1 mm



TI LIU THAM KHO

THIT K V LP RP THIT B TU THY NGUYN NG CNG

TRANG B NG LC TU THY

TH.S NGUYN NH LONG

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MC LC

Li ni u ............................................................................................................................... 2

PHN A: NG C CHNH LP T SAU ....................................................................... 3 I)GII THIU CHUNG V CON TU ................................................................................. 4

II) KIM TRA BN V .......................................................................................................... 4 III)LP T H TRC CHN VT ..................................................................................... 6

IV) LP T BNH LI ..................................................................................................... 13 V) LP T MY ................................................................................................................ 15

1)NH TM H TRC ................................................................................................... 15 2)CNG CHNH LP MY CHNH ............................................................................... 16

3)KIM TRA THEO PHNG PHP LCH TM V GY KHC ............ 19 4)LP T NG X THI ............................................................................................. 20

5)LP T TAY S V V LN ................................................................................... 20

PHN B: NG C CHNH LP T TRC ........................................................... 22 I) B MY CHNH ............................................................................................................ 23

1) Kt cu b my chnh .................................................................................................. 23 2) Lp t v gia cng b my di tu ............................................................................ 25

PHN A: NH TM NG C- MY CHNH .............................................................. 27 I)LP T KHUNG CHN MY ................................................................................... 27

II)NH TM MY CHNH ............................................................................................ 27 III)KP CHT MY CHNH TRN B MY DI TU .......................................... 28

PHN B: CNG TIM H TRC ......................................................................................... 28 I)YU CU CHUNG ......................................................................................................... 28

II) QUI TRNH CNG TIM BNG QUANG HC ........................................................ 28 1) Cch tin hnh ........................................................................................................... 28

2)nh tm ng ngm trn bch my chnh. .................................................................. 29 3) Cch tin hnh cng tim h trc bng quang hc .................................................. 30

PHN C: NH TM V LP H TRC .......................................................................... 31

I)CC BC TIN HNH NH TM H TRC THEO LCH TM V GY KHC ....................................................................................................................... 31

II)LP H TRC .............................................................................................................. 32

1)Lp ng bao trc ......................................................................................................... 32 2)Lp trc chn vt v chn vt ( thc hin di DOCK) ............................................ 32 3) Lp bc trc chn vt ................................................................................................. 33

III) LP CHN VT .......................................................................................................... 34

IV)LP TRC TRUNG GIAN ......................................................................................... 35 V)LP CM KN NG BAO, CM KN VCH NGANG V PHANH H TRC..... 36

1)Cm kn ng bao ......................................................................................................... 36 2)Cm kn vch .............................................................................................................. 37

3)Phanh h trc .............................................................................................................. 37 TI LIU THAM KHO ..................................................................................................... 38

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