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双铰接剪叉式液压升降台的设计-正文 - 百度文库

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ְҵѧԺҵ˵

aϵ,±3-7ȡ a=4

3-7 ϵͳϵ

ϵͳ ߻е 12 ѹϵͳ 24 ѹϵͳ 57 ѹϵͳ 612 ұе 10 a V?aQV?4QP?60?195L

3.4ҺѹҪṹϼҪ

3.4.1

1. ˲ģʽ

ü򵥵ĺʽص㣺ṹ򵥣ߴСᣬʹù㷺庸ӺܱΣھ׼ӹڼӹʱӦСע⡣ҪʽҺѹס

2. IJϣ45Ÿ֣

Һѹ׸ijòΪ203545޷ֹܡ20ŸֵĻеԵͣҲܵʣӦý١Ͳ׵סͷܽͷȼҪʱӦúܱȽϺŵ35Ÿּ֣ӹʡһ£45Ÿ֣Ӧʵ241~285HB

ëɲö͸գտɲZG35BȲϣɲHT200~HT350֮ļƺŻīɲϽȲϡ

3. ļҪ

ŸھH89ϡֲڶȣܷȦʱRaΪ0.1~0.4?mûܷʱRaΪ0.2~0.4?mҾĥ

ƸھDԲȹֵɰ91011ѡȡԲȹֵӦ8ѡȡ

ǸTĴֱȹɰ7ѡȡ

ȵͷʱӦȡΪ6ȵĹơ

ɵжʱ׾ᾶ߶ԸڿߵĴֱֵӦ9ѡȡ

Ϊ˷ֹʴڱӦԺΪ30~40?mĸ㣬ƺĥ׹⡣ 3.4.2

1. ˵ʽ±3-8

29

ְҵѧԺҵ˵

3-8 ˵ʽ

ӷʽ 뻷 ӡ

ע˵ ڹѹϴֱֽС鳣õӷʽ ڹѹе񶯽ϴ 2. ܷṹ湤ѹ¶ȡʵIJͬͬõܷṹ±3-9

3-9 õܷṹ

ܷʽ ϶ܷ ע˵ ڵѹϵͳеҺѹ׻ܷ ܷ ¶ȱ仯ΧҪĦСĻܷ1 OܷȦܷ ܷܺãĦϵСװռС㷺ڹ̶ܷ˶ܷ YܷȦܷ 20MPa¡˶ٶȽϸߵҺѹܷ ϱҪ󣬲OܷȦܷȽϺʡ 3. IJ

Һѹ׳õĻΪĥHT300HT350ּϽȣ45Ÿ֡

4. ļҪ

Ż⾶DڿD1ľֵ78ѡȡ ƶTڿD1ߵĴֱȹֵӦ7ѡȡ ⾶DԲȹֵ91011ѡȡͼ 3.4.3

1. ˲ṹ

30

ְҵѧԺҵ˵

˵Ķ˲ṹΪơơ˫ͷȶʽݱƵĽṹΪ˱ڲжάѡƽṹӵ

2. ˲ߴ

ͼΪӼͼ37-7-4ձҪѡֱ?ݾ-Ƴ=?KK?t?A?33?2?45

3. ˽ṹ

ʵĺͿ֣ͼʵĻ˵IJΪ3545Ÿ֣Ļ˲Ϊ3545޷ֹܡƲʵĻˣѡ45Ÿ֡

4. ˵ļҪ

Ż˵ȴּӹʵӲΪ229~285HBҪʱپƵӲȴHRC45~55ֻʵ230HBɡ

ƻ˵Բȹֵ9~11ѡȡȡ10ȡ ǻ˵ԲȹֵӦ8ѡȡ Ȼ˵ľֵӦΪ0.01mm ɶTĴֱȹֵӦ7ѡȡ

ʻϵƣһӦ6ȼӹغɽСеҲСʱ78죩

˻ϹĴֲڶΪRa0.63?m, Ϊ˷ֹʴӦԺԼΪ40?mĸ㣬ƺĥ׹⡣ 3.4.4˵ĵܷͷ

1.

ŵ׵ĵʽṹ±3-10

3-10׵ĵʽ

ʽ ׸ǵ ͨ ɲ ע˵ װ򵥣ĥԽϿ ѹ󻬵ףʹ䴦ܷ״̬ ײжάޡڹӡ׵ij ԶλãĥȽϾ 31

׵ 浼

ְҵѧԺҵ˵

ڱơҪڳάޣڹҺѹĴԽ٣ĥ̶ҲԽ١Ϊ˼ͳɱԲø׸ǵĵʽ Ƶײ

׵ijòΪͭĥѡõǺ͸׸һĵףԲϺ͸׸Ҳͬģѡĥ

ǵ׵ļҪ

׵ھһȡΪH8/f9ֲڶΪRa0.63~1.25?m 2. ˵ܷ

ԲOܷȦѡ񱡸ƬϷȦȦ˵ϿɰH9/f9ѡȡƬΪ0.5mm 3.4.5Һѹ׵װ

ųҺѹڵĿʹ乤ȶͨװҺѹ׵Ķ˲˫ҺѹӦװõṹߴͼ3-5

??????Ҫ׶ȴӲȲϣ3ǣ??

ͼ3-5ṹ

3.4.6ҺѹװװӲֵʽߴ

1. Һѹ׽ͿڽͷƳߴ磬37-7-8ѡȡ׼ֵ,ֱ?ݾ?

=M33?2?2

2. ҺѹΪͰװҪߴΪP37-231ѡȡCD=50MR=50EW=60Y=60

ʽ

3. ʽҺѹ׶˲ʽߴ

ѡҺѹ׵ĸ׾ձ37-7-59ȷҺѹ׸׸Ƕ˲ijߴ磨ΪӦı׼ߴ磩

4. ׸ǵIJ

32

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ְҵѧԺҵ˵ aϵ,±3-7ȡ a=4 3-7 ϵͳϵ ϵͳ ߻е 12 ѹϵͳ 24 ѹϵͳ 57 ѹϵͳ 612 ұе 10 a V?aQV?4QP?60?195L 3.4ҺѹҪṹϼҪ 3.4.1 1. ˲ģʽ ü򵥵ĺʽص㣺ṹ򵥣ߴСᣬʹù㷺庸ӺܱΣھ׼ӹڼӹʱӦСע⡣ҪʽҺѹס 2. IJϣ45Ÿ֣ Һѹ׸ijòΪ203545޷ֹܡ20ŸֵĻеԵͣҲܵʣӦý١Ͳ׵סͷܽͷȼҪʱ

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