HC軋機主體設計

摘要：軋鋼設備主要指完成由原料到成品整個軋鋼工藝過程中所使用的機械設備。冷軋是生產冷軋板帶鋼材的主要成品工序，其生產的冷軋板帶屬于高附加值的鋼材品種，是汽車、建筑、家電、食品等行業(yè)所必需的原材料。

本次課題中涉及的HC軋機主體設計，是對HC軋機的各個部分經過綜合性的考量、各種方案比較后而進行設計的。目的是設計出可以改善板型的冷軋機。在本文中，首先介紹了軋鋼、軋機及HC軋機的基本概念，接著分析了課題的目的及完成的目標，最后詳細介紹了1450單架可逆式冷軋機的軋制力的計算過程、軋輥調整裝置的選擇及設計計算、壓下螺絲螺母的設計計算和軋機機架的強度和變形計算等等。

關鍵字： 冷軋機；軋制力；軋輥調整裝置；軋機機架。

The Main Part Design of HC Rolling Mill

Abstract: Rolling equipment mainly refers to the completion of the raw materials to finished the whole rolling process used in machinery and equipment. The purpose of this process is to get required shape and specification of the steel. The cold-rolling is the major process of producing cold-rolled strip steels which are high value-added products and the necessary raw materials for automotive, construction, home appliances, food and some other industries. 

    The main part design of Hitachi High Crown Control mill covered in this paper is devised though a comprehensive consideration and a comparison of various options. The purpose of this topic is to design a kind of cold rolling mill which can improve the shape of the cold-rolled strip steels. The paper, at first, introduced the basic concept of steel rolling, steel rolling mill and HC rolling mill. Then it analyzed the purpose and objective of the topic. Finally, in detail, it introduced the calculation process of rolling force of 1450 single-frame reversible cold rolling mill, the choice as well as the design and calculation of roller adjustment device, screw down and screw nut, the rack strength and deformation of the cold rolling mill and some other parts of the cold rolling mill.

Key Words: cold rolling mill; rolling force; roller adjustment device; the rack

目錄

1緒論…………………………………………………………………………………………1

1.1軋鋼的概念及其特點………………………………………………………………… 1

1.2軋制技術的分類及其特點…………………………………………………………… 1

1.3軋鋼機械的概念……………………………………………………………………… 1

1.4軋鋼機的分類………………………………………………………………………… 1

1.5HC軋機簡介…………………………………………………………………………… 2

1.5.1HC軋機概述………………………………………………………………… 2

1.5.2HC軋機的結構原理………………………………………………………… 2

1.5.3HC軋機的主要優(yōu)點………………………………………………………… 2 

1.6軋鋼機及軋鋼技術發(fā)展概況………………………………………………………… 2

1.6.1國外的發(fā)展情況………………………………………………………………3

1.6.2我國的發(fā)展情況………………………………………………………………3

2課題內容介紹………………………………………………………………………………4

3軋制力能參數(shù)………………………………………………………………………………4

3.1軋制過程基本參數(shù)…………………………………………………………………… 5

3.1.1軋制原理基本知識……………………………………………………………5

3.1.2軋制過程變形區(qū)及其參數(shù)……………………………………………………5

3.1.3絕對壓下量和相對壓下量……………………………………………………5

3.1.4彈性變形與塑性變形…………………………………………………………5

3.2軋制時接觸弧上平均單位壓力……………………………………………………… 6

3.2.1平均單位壓力一般表達式……………………………………………………6

3.2.2冷軋帶鋼軋機平均單位壓力計算公式……………………………………………8

3.2.3M.D 斯通（Stone）方法…………………………………………………………………11

4軋輥的調整裝置………………………………………………………………………… 17

4.1軋輥調整裝置的類型…………………………………………………………………18

4.2電動壓下裝置…………………………………………………………………………18

4.2.1快速電動壓下裝置………………………………………………………… 18

4.2.2板帶軋機壓下裝置………………………………………………………… 19

4.3壓下螺絲及螺母設計計算……………………………………………………………21

4.3.1壓下螺絲…………………………………………………………………… 21

4.3.2壓下螺絲設計計算………………………………………………………… 22

4.3.3壓下螺母…………………………………………………………………… 24

4.3.4壓下螺母設計計算………………………………………………………… 26

4.3.5壓下螺絲的傳動力矩及壓下電機功率計算……………………………… 28

5軋鋼機機架……………………………………………………………………………… 30

5.1機架的類型……………………………………………………………………………30

5.1.1閉式機架…………………………………………………………………… 30

5.1.2開式機架…………………………………………………………………… 31

5.2機架主要結構參數(shù)……………………………………………………………………32

5.3軋機機架斷面形狀選擇………………………………………………………………34

5.4軋機機架材料的許用應力……………………………………………………………34

5.5軋機機架強度計算……………………………………………………………………35

5.6軋機機架的變形計算…………………………………………………………………42

5.7軋機機架的傾翻力矩計算……………………………………………………………44

5.7.1傳動系統(tǒng)加于機架上的傾翻力矩………………………………………… 45

5.7.2水平力引起的傾翻力矩…………………………………………………… 45

5.7.3支座反力及地腳螺栓的強度計算………………………………………… 46

6設計參數(shù)匯總…………………………………………………………………………… 49

7小結……………………………………………………………………………………… 50

致謝…………………………………………………………………………………………… 51

參考文獻…………………………………………………………………………