Bài tập Cơ học ứng dụng - Phần 3: Các bộ truyền cơ khí
BAØI TAÄP PHAÀN 3 - CAÙC BOÄ TRUYEÀN CÔ KHÍ
1. Ñeå boä truyeàn ñai coù khoaûng caùch truïc naèm ngang truyeàn taûi toát, ta neân cho baùnh chuû
ñoäng beân traùi quay theo .................... (cuøng/ngöôïc) chieàu kim ñoàng hoà, vì .............................
...................................................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
2. Thoâng soá ñöôïc tieâu chuaån hoùa trong boä truyeàn xích laø:…………………………………………………………….,
giaûi thích veà söï aûnh höôûng cuûa thoâng soá naøy ñeán truyeàn ñoäng xích: ………………………………………………
…………………………..………………….………………….………………………………………………………………………………………………………………….
…………………………………………………………………………………………………….…………………………………………………………………………………
………………….………………….………………….………………….………………….………………….………………….………………….………………………
3. Baùnh raêng nghieâng coù cuøng kích thöôùc vaø vaät lieäu vôùi baùnh raêng thaúng thì coù khaû naêng
chòu taûi lôùn hôn laø vì: ….……………………………………………………………………………………………………………………………………….
……………………………………………………………………………………………………………………………………………………………………………………….
…………………………………………………………………………………………………….………………….………………….………………….…………………….
…………………………………………………………………………………………………….………………….………………….………………….…………………….
4. Ngöôøi ta söû duïng boä truyeàn ñai thang phoå bieán hôn boä truyeàn ñai deït laø do: ………………………..
……………………………………………………………………………………………………………………………………………………………………………………….
…………………………………………………………………………………………………….………………….………………….………………….…………………….
…………………………………………………………………………………………………….………………….………………….………………….…………………….
5. Khi tính beàn thanh chòu uoán ngang phaúng, ta phaûi tính beàn cho ñieåm ôû lôùp bieân vaø lôùp
trung hoøa vì: .............................................................................................................................
...................................................................................................................................................
...................................................................................................................................................
Qy
Sx
d
6. Haõy giaûi thích caùc thoâng soá trong coâng thöùc tính öùng suaát tieáp cöïc ñaïi τzy
=
treân
max
Jx
thaân caùc maët caét hình chöõ I vaø ñaët ñöùng: .............................................................................
...................................................................................................................................................
7. Ngöôøi ta söû duïng boä truyeàn ñai thang phoå bieán hôn boä truyeàn ñai deït laø do: ................................
...................................................................................................................................................
...............................................................................................................................................................
.............................................................................................................................................................
8. Khi laøm vieäc vaän toác truyeàn cuûa boä truyeàn xích coù ñaëc ñieåm: ......................................
.............................................................................................................................................................
vì................................................................................................................................................ ...........
..............................................................................................................................................................
9. Ta phaûi choïn chieàu daøy daây ñai phuø hôïp vôùi ñöôøng kính baùnh ñai vì: ............................................
..............................................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
10. Thoâng soá aûnh höôûng ñeán vaän toác truyeàn cuûa boä truyeàn xích laø: ......................................
vì............................................................................................................................................................
.......................................................................................................................................
...................................................................................................................................................
11. Boä truyeàn baùnh raêng nghieâng ñöôïc duøng trong nhöõng tröôøng hôïp: ......................................
..............................................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
12. Muïc ñích cuûa böôùc tính gaàn ñuùng truïc laø: ......................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
13. Khi thanh chòu löïc, öùng suaát phaùp chæ xuaát hieän theo phöông song song vôùi truïc thanh laø do: .....
..............................................................................................................................................................
..............................................................................................................................................................
14.Nguyeân lyù coäng taùc duïng ñöôïc söû duïng trong ñieàu kieän: ................................................................
...............................................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
15. Baùnh raêng nghieâng coù cuøng kích thöôùc vaø vaät lieäu vôùi baùnh raêng thaúng thì coù khaû naêng chòu taûi
lôùn hôn laø vì: .......................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
16. Muïc ñích cuûa böôùc tính sô boä truïc laø: ................................................................. ...........................
..............................................................................................................................................................
..............................................................................................................................................................
17. Khi thanh chòu löïc, öùng suaát phaùp chæ xuaát hieän theo phöông song song vôùi truïc thanh laø do: .....
..............................................................................................................................................................
..............................................................................................................................................................
18. Moment choáng uoán ñöôïc hình thaønh töø caùc ñaïi löôïng ...................................................................
..............................................................................................................................................................
..............................................................................................................................................................
yù nghóa cuûa moment choáng uoán laø: ......................................................................................................
19. Ta phaûi choïn chieàu daøy daây ñai phuø hôïp vôùi ñöôøng kính baùnh ñai vì: ...........................................
..............................................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
20. Thoâng soá aûnh höôûng ñeán vaän toác truyeàn cuûa boä truyeàn xích laø: ......................................
vì............................................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
21. Boä truyeàn baùnh raêng nghieâng ñöôïc duøng trong nhöõng tröôøng hôïp: ...............................................
..............................................................................................................................................................
..............................................................................................................................................................
..............................................................................................................................................................
22. OÅ laên coù kyù hieäu 7306 coù nghóa laø: ................................................................. ...............................
..............................................................................................................................................................
..............................................................................................................................................................
23. Khi thanh chòu löïc, öùng suaát phaùp chæ xuaát hieän theo phöông song song vôùi truïc thanh laø do: .....
..............................................................................................................................................................
..............................................................................................................................................................
24. Nguyeân lyù coäng taùc duïng ñöôïc söû duïng trong ñieàu kieän: ...............................................................
...............................................................................................................................................................
...............................................................................................................................................................
3 trang
10420
Free
Bạn đang xem tài liệu "Bài tập Cơ học ứng dụng - Phần 3: Các bộ truyền cơ khí", để tải tài liệu gốc về máy hãy click vào nút Download ở trên
File đính kèm:
- bai_tap_co_hoc_ung_dung_phan_3_cac_bo_truyen_co_khi.pdf
