Ihe mejupụtara otu crankshaft nke injin
Nke mbụ, crankshaft
Crankshaft bụ otu n'ime akụkụ kachasị mkpa nke injin ahụ, ọrụ ya bụ iguzogide nrụgide gas sitere na otu mkpanaka njikọ piston gaa na ike nke crankshaft na mmepụta mpụga, na mgbakwunye, a na-ejikwa crankshaft akwọ ụgbọala usoro valvụ injin na ngwaọrụ enyemaka ndị ọzọ (dịka jenerato, fans, pumps water, power stiering pumps, bampụ shaft nguzozi, wdg.)
Otu wiilụ flywheel nke crankshaft: 1- pulley; 2- wiilụ belt nke oge crankshaft; 3- sprocket nke crankshaft; 4- Crankshaft; 5- crankshaft isi bearing (elu); 6- Flywheel; 7- Generator sensọ mgbaàmà ọsọ; 8, 11- put pad; 9- crankshaft isi bearing (ala); 10- Mkpuchi isi bearing nke crankshaft.
Mgbe crankshaft na-arụ ọrụ, ọ ghaghị iguzogide mgbanwe oge na nrụgide gas, ike inertial na ike centrifugal, yana torque na oge ịgbagọ ha n'okpuru ọrụ ọsọ ọsọ, dị mfe ịgbagọ na ịgbagọ mgbanwe, ya mere, crankshaft kwesịrị inwe ike na ike zuru oke, ezigbo nguzogide iyi na nguzozi dị mma. A na-ejikarị ígwè carbon alloy ọkara eme crankshaft, a na-ejikwa quenching ma ọ bụ nitriding dị elu agwọ elu akwụkwọ ndekọ ahụ. A na-eji ígwè carbon dị elu dị elu eme crankshaft injin Shanghai Santana. A na-eji ígwè ductile dị ala, nke siri ike nke ukwuu, eme injin Audi JW na Yuchai YC6105QC.
1. Nhazi nke crankshaft
A na-ejikarị akụkụ ihu, olu isi, crank, ihe mgbochi ibu, akwụkwọ ndekọ mkpanaka njikọ na njedebe azụ. A na-eji akwụkwọ ndekọ mkpanaka njikọ na akwụkwọ ndekọ isi aka ekpe na aka nri ya. Ọnụọgụ crank nke crankshaft dabere na ọnụọgụgụ na nhazi nke silinda. Crankshaft nke otu silinda nwere naanị otu crank; Ọnụọgụ crankshaft nke injin in-line hà nhata ọnụọgụ silinda; Ọnụọgụ crank na crankshaft nke injin V hà nhata ọkara ọnụọgụ silinda. Ogwe ihu nke crankshaft nwere pulley, gia oge, wdg., nke a na-eji akwọ ụgbọ mmiri na usoro valvụ. A na-etinye olu spindle nke crankshaft n'oche ibu nke ahụ silinda ma jiri ya kwado crankshaft. A na-eji akwụkwọ ndekọ mkpanaka njikọ etinye mkpanaka njikọ, crank na-ejikọkwa akwụkwọ ndekọ shaft isi na akwụkwọ ndekọ mkpanaka njikọ. Iji mee ka ike centrifugal dị mma mgbe crankshaft na-agbagharị, a na-enye ngọngọ nguzozi na crankshaft. A na-enye flange njikọ na njedebe azụ nke crankshaft iji jikọọ flywheel na crankshaft site na bolts. Iji mee ka akwụkwọ mkpara njikọ ahụ dị mma, a na-egwupụta ụzọ na-eme ka mmanụ dị n'ime site na akwụkwọ ntuziaka isi ruo na akwụkwọ ndekọ mkpara njikọ. Crankshaft dị n'ime ya dị mfe n'ụdị ya, dị mfe ibu ma dịkwa mma maka ọrụ ya, ọ na-ejikarị bearings nkịtị, nke a na-ejikarị eme ihe na injin ọkara na obere.
2. Ụkpụrụ nhazi nke crank
Ọdịdị nke crankshaft na ọnọdụ nke crank ọ bụla dabere na ọnụọgụgụ silinda, nhazi nke silinda na usoro ọrụ nke silinda ọ bụla. Mgbe ị na-ahazi usoro ọrụ injin, a ga-agbaso iwu ndị a ruo n'ókè o kwere mee:
Mee ka silinda abụọ ahụ rụọ ọrụ n'ebe dị anya ruo n'ókè o kwere mee iji belata ibu nke isi ihe na-ebu ibu, ma zere ime ka valvụ abụọ ejikọtara ọnụ mepee n'otu oge n'oge usoro nnabata, ihe omume nke "ikuku ijide" na-emetụta arụmọrụ mmụba nke injin ahụ.
(1) Oge ọrụ nke silinda ọ bụla kwesịrị ịdị nhata iji mee ka injin ahụ rụọ ọrụ nke ọma. N'ime akụkụ crankshaft ebe injin ahụ na-emecha okirikiri ọrụ, silinda ọ bụla kwesịrị ịrụ ọrụ otu ugboro. Maka injin strok anọ nwere nọmba silinda i, akụkụ ọrụ bụ 720°/i. Nke ahụ bụ, 720°/i ọ bụla nke crankshaft kwesịrị inwe silinda maka ọrụ iji hụ na injin ahụ na-arụ ọrụ nke ọma.
(2) Ọ bụrụ na ọ bụ injin ụdị V, ogidi aka ekpe na aka nri nke silinda kwesịrị ịrụ ọrụ ọzọ.
3. Nhazi crank injin multicylinder a na-ahụkarị na usoro ọrụ
Nhazi nke crankshaft na crank nke injin strok anọ dị n'ahịrị. Oge ọrụ Akụkụ nke injin strok anọ dị n'ahịrị anọ dị n'ahịrị bụ 720°/4=180°, crank anọ ahụ dị n'otu ụgbọelu, usoro ọrụ injin ahụ (ma ọ bụ usoro ọkụ) bụ 1-3-4-2 ma ọ bụ 1-2-4-3. Ngwaọrụ nrụgide okirikiri ọrụ a na-ejikarị eme ihe nwere pad put semi-circular nke nwere oyi akwa metal mgbochi friction, crankshaft isi bearing nwere flanging na mgbanaka thrust gburugburu nwere ụdị atọ. Pad thrust bụ mpempe ígwè ọkara mgbanaka nwere oyi akwa alloy mgbochi friction n'èzí, nke etinyere na oghere ahụ ma ọ bụ mkpuchi ibu isi. Iji gbochie ntụgharị nke pad thrust, pad thrust nwere nnukwu bulge rapaara na oghere ahụ. Ụfọdụ pad thrust na-eji iberibe anọ mepụta oke okirikiri abụọ dị mma, ụfọdụ na-ejikwa iberibe oke abụọ. Akụkụ nwere metal mgbochi friction kwesịrị iche ihu na crankshaft.
Zhuo Meng Shanghai Auto Co., Ltd. na-agba mbọ ire akụkụ ụgbọala MG&MAUXS ka a zụta ya.
