| 蝸輪蝸桿傳動(dòng)在一定條件下可實(shí)現(xiàn)自鎖,，前提條件是蝸桿螺旋升角小到一定程度，通常情況下 螺旋升角小于3.5° 可以完全自鎖,，隨著角度的增大蝸輪蝸桿傳動(dòng)自鎖性降低,。在蝸輪蝸桿設(shè)計(jì)中要達(dá)到自鎖性能可參見(jiàn)下表設(shè)計(jì)。
|
模數(shù)
m
mm
|
軸向齒距
px
mm
|
分度圓直徑
d1
mm
|
頭數(shù)
z1
|
直徑
系數(shù)
q
|
齒頂圓直徑
da1
mm
|
齒根圓直徑
dr1
mm
|
分度圓柱
導(dǎo)程角
γ
|
說(shuō)明
|
|
1
|
3.141
|
18
|
1
|
18.000
|
20
|
15.6
|
3°10′47″
|
自鎖
|
|
1.25
|
3.927
|
20
|
1
|
16.000
|
22.5
|
17
|
3°34′35″
|
|
|
22.4
|
1
|
17.920
|
24.9
|
19.4
|
3°11′38″
|
自鎖
|
|
1.6
|
5.027
|
20
|
1
|
12.500
|
23.2
|
16.16
|
4°34′26″
|
|
|
2
|
9°05′25″
|
|
4
|
17°44′41″
|
|
28
|
1
|
17.500
|
31.2
|
24.16
|
3°16′14″
|
自鎖
|
|
382
|
6.283
|
18
|
1
|
9.000
|
22
|
13.2
|
6°20′25″
|
|
|
2
|
12°31′44″
|
|
4
|
23°57′45″
|
|
22.4
|
1
|
11.200
|
26.4
|
17.6
|
5°06′08″
|
|
|
2
|
10°07′29″
|
|
4
|
19°39′14″
|
|
6
|
28°10′43″
|
|
(28)
|
1
|
14.00
|
32
|
23.2
|
4°05′08″
|
|
|
2
|
8°07′48″
|
|
4
|
15°56′43″
|
|
35.5
|
1
|
17.750
|
39.5
|
30.7
|
3°13′28″
|
自鎖
|
|
2.5
|
7.854
|
(22.4)
|
1
|
8.960
|
27.4
|
16.4
|
6°22′06″
|
|
|
2
|
12°34′59″
|
|
4
|
24°03′26″
|
|
28
|
1
|
11.2000
|
33
|
22
|
5°06′08″
|
|
|
2
|
10°07′29″
|
|
4
|
19°39′14″
|
|
6
|
28°10′43″
|
|
(35.5)
|
1
|
14.200
|
40.5
|
29.5
|
4°01′42″
|
|
|
2
|
8°01′02″
|
|
4
|
15°43′55″
|
|
45
|
1
|
18.000
|
50
|
39
|
3°10′47″
|
自鎖
|
|
3.15
|
9.896
|
（28）
|
1
|
8.889
|
34.3
|
20.4
|
6°25′08″
|
|
|
2
|
12°40′49″
|
|
4
|
24°13′40″
|
|
35.5
|
1
|
11.270
|
41.8
|
27.9
|
5°04′15″
|
|
2
|
10°03′48″
|
|
4
|
19°32′29″
|
|
6
|
28°01′50″
|
|
(45)
|
1
|
14.286
|
51.3
|
37.4
|
4°00′15″
|
|
2
|
7°58′11″
|
|
4
|
15°38′32″
|
|
56
|
1
|
17.778
|
62.3
|
48.4
|
3°13′10″
|
自鎖
|
|
4
|
12.566
|
(31.5)
|
1
|
7.875
|
39.5
|
21.9
|
7°14′13″
|
|
|
2
|
14°15′00″
|
|
4
|
26°55′40″
|
|
40
|
1
|
10.000
|
48
|
30.4
|
5°42′38″
|
|
2
|
11°18′36″
|
|
4
|
21°48′05″
|
|
6
|
30°57′50″
|
|
(50)
|
1
|
12.5000
|
58
|
40.4
|
4°34′26″
|
|
2
|
9°05′25″
|
|
4
|
17°44′41″
|
|
71
|
1
|
17.750
|
79
|
61.4
|
3°13′28″
|
自鎖
|
|
5
|
15.708
|
(40)
|
1
|
8.000
|
50
|
28
|
7°07′30″
|
|
|
2
|
14°02′10″
|
|
4
|
26°33′54″
|
|
50
|
1
|
10.000
|
60
|
38
|
5°42′38″
|
|
2
|
11°18′36″
|
|
4
|
21°48′05″
|
|
6
|
30°57′50″
|
|
(63)
|
1
|
12.600
|
73
|
51
|
4°32′16″
|
|
2
|
9°01′10″
|
|
4
|
17°36′45″
|
|
90
|
1
|
18.000
|
100
|
78
|
3°10′47″
|
自鎖
|
|
6.3
|
19.792
|
(50)
|
1
|
7.936
|
62.6
|
34.9
|
7°10′53″
|
|
|
2
|
14°08′39″
|
|
4
|
26°44′53″
|
|
63
|
1
|
10.000
|
75.6
|
47.9
|
5°42′38″
|
|
2
|
11°18′36″
|
|
4
|
21°48′05″
|
|
6
|
30°57′50″
|
|
(80)
|
1
|
12.698
|
92.6
|
64.8
|
4°30′10″
|
|
2
|
8°57′02″
|
|
4
|
17°29′04″
|
|
112
|
1
|
17.778
|
124.6
|
96.9
|
3°13′10″
|
自鎖
|
|
8
|
25.133
|
(63)
|
1
|
7.875
|
79
|
43.8
|
7°14′13″
|
|
|
2
|
14°15′00″
|
|
4
|
26°53′40″
|
|
80
|
1
|
10.000
|
96
|
60.8
|
5°42′38″
|
|
2
|
11°18′36″
|
|
4
|
21°48′05″
|
|
6
|
30°57′50″
|
|
(100)
|
1
|
12.500
|
116
|
80.8
|
4°34′26″
|
|
2
|
9°05′25″
|
|
4
|
17°44′41″
|
|
140
|
1
|
17.500
|
156
|
120.8
|
3°16′14″
|
自鎖
|
|
10
|
31.416
|
(71)
|
1
|
7.100
|
91
|
47
|
8°01′02″
|
|
|
2
|
15°43′55″
|
|
4
|
29°23′46″
|
|
90
|
1
|
9.000
|
110
|
66
|
6°20′25″
|
|
2
|
12°31′44″
|
|
4
|
23°57′45″
|
|
6
|
33°41′24″
|
|
(112)
|
1
|
11.200
|
132
|
88
|
5°06′08″
|
|
2
|
10°07′29″
|
|
|
4
|
19°39′14″
|
|
160
|
1
|
16.000
|
180
|
136
|
3°34′35″
|
|
12.5
|
39.270
|
(90)
|
1
|
7.200
|
115
|
60
|
7°50′26″
|
|
|
2
|
15°31′27″
|
|
4
|
29°03′17″
|
|
112
|
1
|
8.960
|
137
|
82
|
6°22′06″
|
|
2
|
12°34′59″
|
|
4
|
24°03′26″
|
|
(140)
|
1
|
11.200
|
165
|
110
|
5°06′08″
|
|
2
|
10°07′29″
|
|
4
|
19°39′14″
|
|
220
|
1
|
16.000
|
225
|
170
|
3°34′35″
|
|
16
|
50.265
|
(112)
|
1
|
7.000
|
144
|
73.6
|
8°07′48″
|
|
|
2
|
15°56′43″
|
|
4
|
29°44′42″
|
|
140
|
1
|
8.750
|
172
|
101.6
|
6°31′11″
|
|
2
|
12°52′30″
|
|
4
|
24°34′02″
|
|
(180)
|
1
|
11.250
|
212
|
141.6
|
5°04′47″
|
|
2
|
10°04′50″
|
|
4
|
19°34′23″
|
|
250
|
1
|
15.625
|
282
|
211.6
|
3°39′43″
|
|
20
|
62.832
|
(140)
|
1
|
7.000
|
180
|
92
|
8°07′48″
|
|
|
2
|
15°56′43″
|
|
4
|
29°44′42″
|
|
160
|
1
|
8.000
|
200
|
112
|
7°07′30″
|
|
2
|
14°02′10″
|
|
4
|
26°33′54″
|
|
(224)
|
1
|
11.200
|
264
|
176
|
5°06′08″
|
|
2
|
10°07′29″
|
|
4
|
19°39′14″
|
|
315
|
1
|
15.750
|
355
|
267
|
3°37′59″
|
|
25
|
78.540
|
(180)
|
1
|
7.200
|
230
|
120
|
7°54′26″
|
|
|
2
|
15°31′27″
|
|
4
|
27°03′17″
|
|
200
|
1
|
8.000
|
250
|
140
|
7°07′30″
|
|
2
|
14°02′10″
|
|
4
|
26°33′54″
|
|
(280)
|
1
|
11.200
|
330
|
220
|
5°06′08″
|
|
2
|
10°07′29″
|
|
4
|
19°39′14″
|
|
400
|
1
|
16.000
|
450
|
340
|
3°34′35″
|
|
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