Добавил:
Upload Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Сборник МУ Тех.мех ТОА Нов. стан.doc
Скачиваний:
0
Добавлен:
01.07.2025
Размер:
40.54 Mб
Скачать

Задание

Задача. Рассчитать винтовой механизм домкрата (рис. 169, а) грузоподъ­емностью F, кН с высотой подъема l0 , м.

вариант

F, кН

l0 , м

вариант

F, кН

l0 , м

вариант

F, кН

l0 , м

1

50

0.3

11

105

0,6

21

65

0,8

2

55

0.3

12

110

0,6

22

70

0,8

3

60

0.3

13

90

0,6

23

75

0,8

4

65

0.3

14

50

0,6

24

80

0,8

5

70

0.3

15

55

0,6

25

85

0,8

6

75

0,4

16

60

0,6

26

90

0,9

7

80

0,4

17

65

0,6

27

50

0,9

8

85

0,4

18

110

0,7

28

55

0,9

9

90

0,4

19

80

0,7

29

60

0,9

10

95

0,4

20

110

0,7

30

65

0,9

Выходной контроль Контрольные вопросы

  1. Для какого движения предназначена передача винт-гайка?

  2. Вследствие какого износа винтовые передачи выходят из строя?

  3. Достоинство в применении винтовой пары?

приложение

диаметр

резьбы d

Шаг Р

Диаметр резьбы

d

D2

D1

8

1,5

8,000

7,250

6,200

2

8,000

7,000

5,500

9

1,5

9,000

8,250

7,200

2

9,000

8,000

6,500

10

1,5

10,000

9,250

8,200

2

10,000

9,000

7,500

11

2

11,000

10,000

8,500

3

11,000

9,500

7,500

12

2

12,000

11,000

9,500

3

12,000

10,500

8,500

14

2

14,000

13,000

11,500

3

14,000

12,500

10,500

16

2

16,000

15,000

13,500

4

16,000

14,000

11,500

18

2

18,000

17,000

15,500

4

18,000

16,000

13,500

20

2

20,000

19,000

17,500

4

20,000

18,000

15,500

22

2

22,000

21,000

19,500

3

22,000

20,500

18,500

5

22,000

19,500

16,500

8

22,000

18,000

13,000

24

2

24,000

23,000

21,500

3

24,000

22,500

20,500

5

24,000

21,500

18,500

8

24,000

20,000

15,000

26

2

26,000

25,000

23,500

3

26,000

24,500

22,500

5

26,000

23,500

20,500

8

26,000

22,000

17,000

28

2

28,000

27,000

25,500

3

28,000

26,500

24,500

5

28,000

25,500

22,500

8

28,000

24,000

19,000

30

3

30,000

28,500

26,500

6

30,000

27,000

23,000

10

30,000

25,000

19,000

32

3

32,000

30,500

28,500

6

32,000

29,000

25,000

10

32,000

27,000

21,000

34

3

34,000

32,500

30,500

6

34,000

31,000

27,000

10

34,000

29,000

23,000

36

3

36,000

34,500

32,500

6

36,000

33,000

29,000

10

36,000

31,000

25,000

38

3

38,000

36,500

34,500

6

38,000

35,000

31,000

7

38,000

34,500

30,000

10

38,000

33,000

27,000

40

3

40,000

38,500

36,500

6

40,000

37,000

33,000

7

40,000

36,500

32,000

10

40,000

35,000

29,000

42

3

42,000

40,500

38,500

6

42,000

39,000

35,000

7

42,000

38,500

34,000

10

42,000

37,000

31,000

44

3

44,000

42,500

40,500

7

44,000

40,500

36,000

8

44,000

40,000

35,000

12

44,000

38,000

31,000

диаметр

резьбы d

Шаг Р

Диаметр резьбы

d

D2

D1

46

3

46,000

44,500

42,500

8

46,000

42,000

37,000

12

46,000

40,000

33,000

48

3

48,000

46,500

44,500

8

48,000

44,000

39,000

12

48,000

42,000

35,000

50

3

50,000

48,500

46,500

8

50,000

46,000

41,000

12

50,000

44,000

37,000

52

3

52,000

50,500

48,500

8

52,000

48,000

43,000

12

52,000

46,000

39,000

55

3

55,000

53,500

51,500

8

55,000

51,000

46,000

9

55,000

50,500

45,000

12

55,000

49,000

42,000

14

55,000

48,000

39,000

60

3

60,000

58,500

56,500

8

60,000

56,000

51,000

9

60,000

55,500

50,000

12

60,000

54,000

47,000

14

60,000

53,000

44,000

65

4

65,000

63,000

60,500

10

65,000

60,000

54,000

16

65,000

57,000

47,000

70

4

70,000

68,000

65,500

10

70,000

65,000

59,000

16

70,000

62,000

52,000

75

4

75,000

73,000

70,500

10

75,000

70,000

64,000

16

75,000

67,000

57,000

80

4

80,000

78,000

75,500

10

80,000

75,000

69,000

16

80,000

72,000

62,000

85

4

85,000

83,000

80,500

5

85,000

82,500

79,500

12

85,000

79,000

72,000

18

85,000

76,000

65,000

20

85,000

75,000

63,000

90

4

90,000

88,000

85,500

5

90,000

87,500

84,500

12

90,000

84,000

77,000

18

90,000

81,000

70,000

20

90,000

80,000

68,000

95

4

95,000

93,000

90,500

5

95,000

92,500

89,500

12

95,000

89,000

82,000

18

95,000

86,000

75,000

20

95,000

85,000

73,000

100

4

100,000

98,000

95,500

5

100,000

97,500

94,500

12

100,000

94,000

87,000

20

100,000

90,000

78,000