4 尺寸
4.1 螺栓尺寸
螺栓尺寸按圖2及表1~表2的規(guī)定祷燥。
表l mm
螺紋規(guī)格d |
M16 |
M20 |
(M22) |
M24 |
P |
2 |
2.5 |
2.5 |
3 |
da |
max |
18.83 |
24.4 |
26.4 |
28.4 |
ds |
max |
16.43 |
20.52 |
22.52 |
24.52 |
min |
15.57 |
19.48 |
21.48 |
23.48 |
dw |
min |
27.9 |
34.5 |
38.5 |
41.5 |
dk |
max |
30 |
37 |
41 |
44 |
K |
公稱 |
10 |
13 |
14 |
15 |
max |
10.75 |
13.9 |
14.9 |
15.9 |
min |
9.25 |
12.1 |
13.1 |
14.1 |
K′ |
min |
12 |
14 |
15 |
16 |
K″ |
max |
17 |
19 |
21 |
23 |
r |
min |
1.2 |
1.2 |
1.2 |
1.6 |
do |
≈ |
10.9 |
13.6 |
15.1 |
16.4 |
續(xù)表1 mm
螺紋規(guī)格 d |
M16 |
M20 |
(M22) |
M24 |
db |
公稱 |
11.1 |
13.9 |
15.4 |
16.7 |
max |
11.3 |
14.1 |
15.6 |
16.9 |
min |
1l |
13.8 |
15.3 |
16.6 |
dc |
≈ |
12.8 |
16.1 |
17.8 |
19.3 |
de |
≈ |
13 |
17 |
18 |
20 |
注: ① 括號(hào)內(nèi)的規(guī)格為第二選擇系列,應(yīng)優(yōu)先選用第一系列(不帶括號(hào))的規(guī)格登徐。
② P -- 螺距翁乌。
表2 mm
l |
螺紋規(guī)格 d |
M16 |
M20 |
(M22) |
M24 |
M16 |
M20 |
(M22) |
M24 |
無(wú)螺紋桿部長(zhǎng)度ls和夾緊長(zhǎng)度lg |
b
參考 |
公稱 |
min |
max |
ls
mim |
lg
max |
ls
mim |
lg
max |
ls
mim |
lg
max |
ls
mim |
lg
max |
40 |
38.75 |
41.25 |
4 |
10 |
|
|
|
|
|
|
30 |
|
|
|
45 |
43.75 |
46.25 |
9 |
15 |
2.5 |
10 |
|
|
|
|
35 |
50 |
48.75 |
51.25 |
14 |
20 |
7.5 |
15 |
2.5 |
10 |
|
|
40 |
55 |
53.5 |
56.5 |
14 |
20 |
12.5 |
20 |
7.5 |
15 |
1 |
10 |
35 |
45 |
60 |
58.5 |
61.5 |
19 |
25 |
17.5 |
25 |
12.5 |
20 |
6 |
15 |
65 |
63.5 |
66.5 |
24 |
30 |
17.5 |
25 |
17.5 |
25 |
11 |
20 |
40 |
|
70 |
68.5 |
71.5 |
29 |
35 |
22.5 |
30 |
17.5 |
25 |
16 |
25 |
45 |
|
75 |
73.5 |
76.5 |
34 |
40 |
27.5 |
35 |
22.5 |
30 |
16 |
25 |
50 |
80 |
78.5 |
81.5 |
39 |
45 |
32.5 |
40 |
27.5 |
35 |
21 |
30 |
85 |
83.25 |
86.75 |
44 |
50 |
37.5 |
45 |
32.5 |
40 |
26 |
35 |
90 |
88.25 |
91.75 |
49 |
55 |
42.5 |
50 |
37.5 |
45 |
31 |
40 |
95 |
93.25 |
96.75 |
54 |
60 |
47.5 |
55 |
42.5 |
50 |
36 |
45 |
100 |
98.25 |
101.75 |
59 |
65 |
52.5 |
60 |
47.5 |
55 |
41 |
50 |
110 |
108.25 |
111.75 |
69 |
75 |
62.5 |
70 |
57.5 |
65 |
51 |
60 |
120 |
118.25 |
121.75 |
79 |
85 |
72.5 |
80 |
67.5 |
75 |
61 |
70 |
130 |
128 |
132 |
89 |
95 |
82.5 |
90 |
77.5 |
85 |
71 |
80 |
|
140 |
138 |
142 |
|
|
92.50 |
100 |
87.5 |
95 |
81 |
90 |
150 |
148 |
152 |
|
|
102.5 |
110 |
97.55 |
105 |
91 |
100 |
|
160 |
156 |
164 |
|
|
112.5 |
120 |
107.5 |
115 |
101 |
110 |
170 |
166 |
174 |
|
|
|
|
117.5 |
125 |
111 |
120 |
|
|
|
|
180 |
176 |
184 |
|
|
|
|
127.5 |
135 |
121 |
130 |
注: ① 括號(hào)內(nèi)的規(guī)格為第二選擇系列,應(yīng)優(yōu)先選用第一系列(不帶括號(hào))的規(guī)格哟笨。
② 當(dāng)ls 小于5 mm時(shí)蒙搅,螺桿允許制成全螺紋。
4.2 螺母尺寸
螺母尺寸按圖3及表3的規(guī)定(與GB/T 1229一致)母逸。
表3 mm
螺紋規(guī)格D |
M16 |
M20 |
(M22) |
M24 |
P |
2 |
2.5 |
2.5 |
3 |
da |
max |
17.3 |
21.6 |
23.8 |
25.9 |
mm |
16 |
20 |
22 |
24 |
dw |
min |
24.9 |
31.4 |
33.3 |
38 |
e |
min |
29.56 |
37.29 |
39.55 |
45.2 |
m |
max |
17.1 |
20.7 |
23.6 |
24.2 |
min |
16.4 |
19.4 |
22.3 |
22.9 |
M′ |
mim |
13.1 |
15.5 |
17.8 |
18.3 |
M″ |
min |
11.5 |
13.6 |
15.6 |
16 |
c |
max |
O.8 |
O.8 |
O.8 |
O.8 |
min |
O.4 |
O.4 |
O.4 |
O.4 |
S |
max |
27 |
34 |
36 |
41 |
min |
26.16 |
33 |
35 |
40 |
支承面對(duì)螺紋軸線的垂直度公差 |
O.38 |
O.47 |
O.50 |
O.57 |
注: ① 括號(hào)內(nèi)的規(guī)格為第二選擇系列潘尿,應(yīng)優(yōu)先選用第一系列(不帶括號(hào))的規(guī)格。
② P -- 螺距徒溪。
4.3 墊圈尺寸
墊圈尺寸按圖4及表4的規(guī)定(與GB/T 1230一致)忿偷。
表4 mm
規(guī)格(螺紋大徑) |
16 |
20 |
(22) |
24 |
dl |
max |
17.43 |
21.52 |
23.52 |
25.52 |
min |
17 |
21 |
23 |
25 |
d2 |
max |
33 |
40 |
42 |
47 |
min |
31.4 |
38.4 |
40.4 |
45.4 |
S |
公稱 |
4 |
4 |
5 |
5 |
min |
3.5 |
3.5 |
4.5 |
4.5 |
max |
4.8 |
4.8 |
5.8 |
5.8 |
d3 ≈ |
19.6 |
24.7 |
26.7 |
28.7 |
注:括號(hào)內(nèi)的規(guī)格為第二選擇系列,應(yīng)優(yōu)先選用第一系列(不帶括號(hào))的規(guī)格臊泌。