Nghiên cứu, thiết kế, xây dựng quy trình công nghệ chế tạo hoàn chỉnh trục răng chủ động máy nghiền apatit

Phan Thach H6 Vi?n Nghien cflu Cd khi - Bp Cdng Thfldng TOM TAT Bdi bdo gidi thieu nghien cdu ve true rang chu dong mdy nghien apatit tren cd sd khdo sdt thUc te che do ldm viec tai nhd

NGHIEN CUU

NGHIEN CLTU, THI^T K^, XAY DUNG QUY TRJNH CONG NGHE CH^ TAO HOAN C H I N H T R U C RANG C H O DONG MAY NGHIEN APATIT

RESEARCH, DESIGN AND CREATE TECHNICAL PROCESS TO MANUFACTURE

COMPLETELY THE DRIVEN GEAR SHAFT OF APATIT GRINDER

TS Phan Thach H6

Vi?n Nghien cflu Cd khi - Bp Cdng Thfldng

TOM TAT

Bdi bdo gidi thieu nghien cdu ve true rang chu dong mdy nghien apatit tren cd sd khdo sdt thUc te che do ldm viec tai nhd mdy Bdi bdo neu nhUng nghien cUu tong quan ve mdy nghien vd true rang chu ddng mdy nghien, tii dd tinh todn cdc thdng sd cua true rdng, kiem tra ben true rdng vd dUa ra thiit ke true rdng ehu ddng TU do bdo cdo lap quy trinh cdng nghe gia edng true rdng chu ddng mdy nghien, tien hdnh ehe tao true rdng dUa vdo lap ddt chay thil tai nhd mdy

ABSTRACT

This report research on the driven gear shaft based on reality survey in plant Report studied gen-erally apatit grinder and the driven gear shaft, calculate parameters of this shaft, cheek strength of shaft and design the shaft From which, this report describe technical manufacturing process, manufacture the shaft, erect and test in Lao Cai Apatit Plant

1 DAT VAN DE Trong qui trinh lam vi^c, tryc rang chu ddng cua

miy nghien apatit chiu tie dung cua md men uon May nghien li mdt thiet bi chuyen dung xoin, Iflc dpc true Dang hdng chii yeu cua true dupe sfl dung trong nginh Cdng nghiep khai rang li do mdi, mdn va eae dang hdng ciia rang,

khoang, Xay dflng vi Cdng nghiep vat heu da Do dd de tii "Nghien cflu, thiet ke, xay dflng quy dupe nhieu nUde tren the gidi nghien cflu che tao, trinh cdng nghe che tao hoan ehinh true rang chu

da dang ve chung logi va kich cd dpng miy nghien apatit" nham dap flng cac yeu

cau tren

O trong nfldc, may nghien apatit chu yeu

li miy ngoai nhap Trong do, mdt sd chi tiet mau 2 MUC Tl£U

mdn ehdng hdng chfla che tao dflpc vdi dieu ki^n

trong nfldc Khi thay the cic chi tiet niy can phii - Nghien cflu, thiet ke, che tao true rang

nhap khau tfl nfldc ngoii ve, dieu dd giy ra tdn chu dpng miy nghien apatit, thay the hang nhap

kem ve kinh te va mat nhieu thdi gian chd dpi khau, tiet ki?m ngoai te

NGHIEN ClJfU - TRAO D 6 I

- DUa v i o flng dung trong san xuat, tgo ra

s i n pham dat chat lUdng tdt phue vu cho nhu cau

trong nfldc

- Tao cdng an viec lam, tang thu nhap cho

ngfldi lao ddng

3 NOI DUNG

3.1 Nghien cflu tong quan ve true rang chu dpng

m i y nghien

* Nguyen ly ldm viec cua mdy nghien apatit: Vat

lieu dflpc ngp qua cfla nap (1), nhd bd nap lieu

tang trdng (2) phia trong cd vich ngan dang canh

vit Vat lieu dflpc mue tflng me do qua cd rdng loe

phia trong (3) vao tang nghien (6) Phia ngoai ed

rong cd lap cd true (5) due lien vdi mat bieh ben

trai eiia tang nghien v i ed true dflpc lap vio d true

(4) Be mat cua gdi dd bac ddi dien vdi be mat lim

viec cua 6 trUpt cd ciu tao dang cau v i tUa tren gii

may (14 Dan ddng tang nghien nhd ddng ca, bd

chuyen dai (13), cap banh rang hd (8)

Trong q u i trinh nghien cac hgt vat lieu du

nhd se bay qua khe hd (15) cua vich ngan (9) 0

phia ben kia vich ngan ed lap cic canh gom lieu

(10), nhd eic canh niy, vay lieu dfldc dfla len do

vid moay d (11) rdi ra co true (12) di ra ngoai

tang nghien

* Cau tao cua m i y nghien (hinh 1)

1 CC(a n a p

2 B^nspli^u

dp lim viec nang, thdi gian chay may 3 ca/ngiy, mdi ea lim vi^c 8 gid May nghien apatit lam viee trong dieu kien am vi bui ban Cac hgt mai trong quang anh hfldng den eic thiel bi nhfl gdi dd, d

bi, true, cap banh rang, hpp giam tdc, ddng ca

* True rdng chit dgng mdy nghien: True rang dflpc

lap tren block gdi dd dang hop Mpt dau true de tron, mpt dau true dflpc ket ndi vdi dpng ed dien qua khdp ndi Phan rang lim viec dflpc che kin trong hop True rang dfldc bdi trdn dinh ky bang

md Tai moi dau gdi true ed he thdng dng dan lim mit gdi dd

3.2 Tinh toin, thiet ke true rang chu ddng may

nghien

* Cdc thdng so cua true rang

Sau khi khio sat vi ket hdp vdi ca sd sin

xuat, chung ta cd eic thdng sd cua true rang chu dpng may nghien apatit nhfl sau:

TT

I.I 1.2

! 3

14

15

1 6

17 I.S 1.9

110

TENGpi-YNGHlA

HJ^ng nghieng cua rJng DUdng kinh dinh rang DJtlng kinh chia DJ6ng kinh Chan rang

Mo dun phap tuyfln

sa rang Gdc nghien cia rang Phrophm goc HI; so d|ch chinh Cap chmh xac

fCHlJU

a

d

d, m„

/,

P

*,

CONG THtfC

d^=^_ + 2(l+x,-Ay)m

d, = mz,/cosp d=d,-(2,5-2i,]m

5"15' TCVNU167-7I

TCVN 1067

GlA

Trai 402.0 353,5 330,0

16

22 5,25

0.515

D.V1

mm

mm

mm

do

8-U

Hinh 1 Cdu tao cua mdy nghien

* Che do ldm viec cua mdy nghien apatit: Li che

* Tinh todn, kiem nghiem true rang + Kiem nghiem rdng ve do ben tiep xuc

d,=Z^Z„Zj2T,K^(u+l)/(b^ud„,^)]'''^ (1) Vdi cong suat cua ddng cd: P = 630kW; Tdc dp true rang: n = 250 (vg/ph)

Thay cac thdng sd vao (1) ket luan: True rang dam bao du dp ben tiep xuc

a„ = 338,2 (N/mm^) < Id^] = 397 (N/mm=) "^

NGHIEN CUU - TRAO DpI

h Kiem nghiem rdng ve do ben uon

d„=2T,K,V YpYp,/(bX,m) <[o,J

- Ung suat udn: a = M / 0 , l d ^ (6) (2) - Ung suit ti^p: T=M/(0,2d^) (7) Thay cac thdng sd v i o (2) ket luan: Trpc Tliay gia Iri vao (5), (6) v i (7) ta dflpc Ung

rang d i m b i o du dp ben udn suit lUdng dfldng tgi cic mat cat (1), (2) vi (3)

tfldng Ung nhu sau:a,j,= 20,98 (N/mm^); 0,^^=

J,., = 44,0 (N/mm^) < [o,,,] = 260 (N/mm^) 20.22 (N/mm^); a,j,= 26,05 (N/mm^) deu nhd hdn

flng suit cho ph^p: [a] = 288 (N/mm^) Ket luan:

+ Kiem nghiem do ben qud tdi rdng vc tiip xdc Trpc dam b i o dii b^n

vd uon

+ Kiim nghiem do bin moi cua true:

-', >=<'„-K„0.5S|<'M1,„„ (3)

s=s^,.s,/(s,;'+s,/)°-> > |sl (8) ''i,„„.=<'rK,<la,l,„„ (4)

Thay s6 ta dl(<?c: s = 7,1 > [s] = 2,5; Kft

Thay so vao (3), (4) Ket luan: True rang luSn; True dam bao dO b^n moi

dam bao dp ben qua tai ve tiep xuc vk uon

+ Kiem tra dp ben cua then theo vtng sudt dap vd

-Hm., = 354,6 (N/mm') < la„]^^ = 1.320 (N/mmO Ung suat cat:

Op„„ = 48,5 (N/mm') Sla^J^^ = 64 (N/mm^)

+ Tinh kiem tra d6 ben eua true tai cac mat eat

Cac liJc tae dung len true: F^, = 136.165

N; F^i = 52.808 N; F_, = 12.512 N; M_ = 24.066.000

N.mm

• iTng suat dap: Oj = 2T/dl(h-t,) = 31,7 (N/

mm') < [ a j = 100 (N/mm')

- Ong suat eit: T =2T/dlb = 6,98 (N/mm')

< | T J = 50 (N/mm') Ket luan: Then dam bao dii dp ben dap va

dp ben cdt

W " <^

Hinh 2 Bieu do mo men tren true

Kiem tra flng suat tUdng dUdng tai cic

mat cat nguy hiem (1), (2), (3):

* Thiet k^ true rang:

Diia tren vi$e khao sit mau da cd tai eP sif sin xuat, tfl do dfla ra hai phfldng an thiet ke tryc rang chii ddng may nghien apatit

Phfldng an 1: Che tgo phan true va ehe tgo phan dng r i n g sau dd lip ghep lai

- Uu diem: De gia edng phan true v i phan

dng rang rieng re; Phu hpp vdi dieu kien thiet bi che tao trong nfldc; Che tgo phdi true rang vi dng rang de d i n g hdn; Tiet ki^m vat lieu

-NhUdcdiim:

Trong do:

o,,={o'-^3T'r (5) Phai lap ghep phan true v i p h i n rang, doi

hdi viec che tao p h i i chinh xac Phai dimg them mdi ghep then de truyin Iflc

NGHIEN Cflu - TRAO DPi

PhiJdng an 2: Che tao rang lien true

- Ifu diim: True rang lien true khdng phai lap ghep gifla phan true vi phin ring

- NhUdc diim: Trong qua trinh tao phdi, gia cdng khd khin vi kich thfldc true ring Idn, ddi hdi thiet bi

hien dgi Khdng phu hdp vdi dieu ki^n che tao trong nfldc; Che tgo tryc rang vi binh rang cung mdt logi vat lieu trong khi yeu cau ve die tinh vat li?u cua hai chi tiet niy Igi kliac nhau; Khi thay the banh rang do mil mdn hoac giy ring thi phii thay the ludn ca trpc

Ket luan: Chpn phfldng an thfl nhat li che tao phin true ring vi phan dng ring rieng re sau dd lap ghep Igi

Ban ve thiet ke true rang:

*

-f-Hinh 3 Ban ve thiet ke true rdng

3.3 Lap quy trinh eong nghe che tao true rang chu dong may nghien

* Cac nguyen cong (NC) che tao true

Chpn phoi che tao true rang la phoi can CD275, vat lieu thep C45

- NC 1: Tien mat dau 1, khoan 16 tam, tien cD270

- NC 2: Tien mat dau 2, khoan 16 tam, tien 0270

-NC3:

+ BU6e 1: Tien tho 0230

+ Bade 2: Tien thp O220

+ Bade 3: Tien tho O200

+ Bil6c 4: Tien tho mat eon

+ Bade 5: Tien tinh O230

- NC 4: Phay ranh then

- NC 5: Nhiet luyfa eo true lap bi O200

- NC 6: Mai be mjt eo true lap bi O200, O230 va be m?t eon

+ Bade 6: Tien tinh O220 + Bade 7: Tien tinh O200 + Bade 8: Tien tinh mat eon Bade 9: Cat ranh vong chan

+ Bade 10: Tien tho, tinh mat eon eon lai

* Cac nguyen cong che tao ong rang

Chpn phoi thep due 0415, O220; vat lieu 40X Cae nguyen cong:

-NCI: Tien 16 0230

- NC 2: Tien mat dau

- NC 3: Tien mat ngoai

- NC 4: Tien O270

- NC5: Xpc then

- NC6: Khoan va ta ro cac 16 M14

- NC 7: Phay rang Z22, M = 16

- NC 8: Nhi^t luy^n be mat rang

NGHIEN CUfU-TRAO Ddi

Tren ca sd eae bfldc nguyen edng, chpn linh flng dpng thflc tiln

miy, dao va cic thdng sd gia cdng phu hpp vdi Ket q u i nghien cflu ciia de tii da dgt dflpc dieu kien gia cdng trong nfldc muc tieu d^ ra:

- Nghien cflu cd ban ve true rang chu dpng

m i y nghiln

- Che tao t h i n h cdng true ring chu dpng miy nghiln

4 KET QUA N G H I £ N CUtJ VA 0>JG DVNG

- De tii thpc hi?n nghien cflu, linh toin,

thiet ke true ring chu dpng miy ngliicn apatit

Lap quy trinh edng ngh? ehe lao trpc rang chii

dpng may nghien apatit

- DUa v i o thay t h i tgi n h i may tilt kiem

- Che tgo thinh edng trpc ehu dpng may ngoai t^ nhgp khiu

nghien apatit theo phUdng an thiet ke mdi phu

hdp vdi dieu kien gia cdng c h l tgo trong nfldc vi - C h l tgo trong nha may tai Viet Nam tao dfla vao flng dung tai N h i miy apatit Viet Nam cdng an vi?c lam cho ngfldi lao dpng •

- Cac thdng sd cua true ring dam b i o yeu Ngiy nhan bii: 28/6/2012

eau ky thuat DUa vao thay the lip dat phu hpp vdi Ngiy p h i n bien: 05/7/2012

may nghien apatit tgi n h i may Dp ben cua true NgUdi phan bien: GS, TSKH P h a m Van Lang rang d i m b i o d i p flng yeu cau cua n h i miy ve

thdi gian lim viee Tai liSu tham khao

- Che tao t h i n h cdng true rang giup N h i

nfldc tiet kiem ngoai te nhap khau thiet bi Cd

sd sin xuat tiet kiem ve kinh te so vdi nhap khau

khoing 20%, dam bao d i p Ung kip thdi yeu cau

sin xuat cua nha may, tiet ki?m thdi gian chd dpi

so vdi nhap khau thiet bi

- Gdp phan tang kha nang npi dia hda cac

thiet bi cd khi trdng nUde v i nang cao nang Iflc

che tgo cd khi

6 KET LUAN

"Nghien cflu, thilt ke, xay dflng quy trinh

cdng nghe c h l tao hoan chinh true rang chu ddng

may nghien apatit" la dang de tai nghien cflu cd

ll] PGS PTS Nguyen Bdi PTS Tran \ ^ Liing, PIS Pham Hflu Giang, Cd sd tuyen khoang NXB Giao thdng Van tai Ha Npi 1999

[2| Tran Van Dich, Sd tay cong nghe che tao may Ha Npi 2010

l.il.pACM£Tbi rpysonofliEMbix M TPAHCnOPTMPVlOmMX MAlllMH (P.K MBAMEHKO, B.C BOHflAPEB , H.n KO^IECHMK , B.H BAPABAHOB: MSMTE/lbCKOE OB-bEAMHEHHE BMUJA UIKOHA rO;iOBHOE M3flATEnBCTB0, KMEB

- 1975

[4] A.I.KocHnOBa TOHHOCTb OBPABOTKM, 3ArOTOBKM M nPMnVCKM B MAIUMHOCTPOEHMH CnPABOHHUK- MocKsa

"MaiuHHOCTpoeHHe"

15] H.A.CAMOXBA;iOB,M.fl.;iEBMLlKMi:5, B.fl.rPMrOPAUI CnPABOMHMK TEXHMKA - KOHCT-PYKTOPA H3fl a tenbcxBO " TexHiKa"