JB/T 6469-1992 Inverted taper external thread for steam turbine JB/T6469-1992 Standard download and decompression password: www.bzxz.net

K54 | | tt | | JB |
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2 xe/
1 Subject content and scope of application
JB/T64691992
This standard specifies the studs (bolts) for steam turbines ) of the inverted taper external thread size series (the internal thread in the thread pair still uses ordinary threads). This standard applies to studs (bolts) used in steam turbines. This standard also applies to studs (bolts) subjected to alternating loads. 2 Reference standards
GB196 basic dimensions of ordinary threads (diameter 1 ~ 600mm) 3 Definition
Ordinary threads with a taper, the large end of the taper is at the thread end face, and the center line of the tooth form angle is perpendicular to the thread axis The thread is called an inverted taper external thread. The major diameter, middle diameter, and minor diameter of the inverted external thread all have inverted tapers. 4Basic form
4.1 The taper of the inverted cone external thread is divided into two types: 3:10008:1000. 4.2 The tooth shape of the inverted cone external thread is an ordinary thread. Its basic size series is selected according to the regulations of GB196. 4.3 The nominal size of the inverted taper external thread is the nominal size of the large end of the cone. 5 Code
M
Example:
XXX
×
×x
K
i=1, means The inverse taper is 3: 1000
i=2, which means the inverse taper is 8: 1000
means the inverse taper
means the pitch
means the nominal diameter of the thread||tt| |Indicates ordinary threads
, reverse taper external thread with a reverse taper of 8:1000. 1992-08-06rat
1
1993-01-01
6 size series
JB/T64691992
6.131000 inverted taper external thread size The series is shown in Table 1, Table 2 and Figure 1. 6.28: The basic dimensions of the 1000 inverted taper external thread are shown in Table 3, Table 4 and Figure 2. 90° axis
Figure 1
3.2/|| tt||Diameter
Table 1 (inverted taper 31000)
Thread specifications
M12~-M14
M16
M20
M22
M27~M120×3
M130X4~M160×6
Thread specifications
d
M12
M14
M16
M20
M22
M24
M27
M27×2
M30
M30×3||tt ||M33×3
M36
Basic diameter Basic pitch diameter
Ruler
12
14
16
20
22
24
27
27
30
33
36
foot| |tt||10.86
12.70
14.70
18.38
20.38
22.05
25.05
25.70||tt ||27.73
28.05
31.05
33.40
Max
11.95
13.95
15.95
19.95
21.95
23.95
26.87
26.87
29.87
29.87
32.87
35.87| |tt||Big
Min
11.70
13.70
15.70
19.70
21.70
23.70||tt ||26.62
26.62
29.62
29.62
32.62
35.62
path
中
R
0.20~~0.28
0.25~0.33
0.28~0.38
0.30~0.41
0.33~0.46
0.46~0.61
Table 2 (inverted taper 3:1000)
Diameter
Upper deviation
0.05
0.13
「Lower deviation||tt ||—0.30
-0.38
most
big
10.82
12.66
14.66
18.33||tt ||20.33
22.00
25.00
25.65
27.68
28.00
31.00
33.34
Medium
Diameter
Minimum upper deviation
Lower deviation
10.78
12.62
14.62
18.28||tt| |20.27
21.94
24.94
25.59
27.62
27.94
30.94
33.28
— 0. 04
0.05
0.06
mm
mm
Maximum trail
10.11
11.84||tt| |0.08
13.84
0.10
0.11
0.12
17.29
19.29
20.75
23.75
24.84
26.21
26.75
29.75
31.67
3
軺纹载括
d
M35×3
M39×3
M42
M42× 3
M45×3
M48
M48×3
M52
M52×3
M55×4
M60×3
M60×4
M64×3
M64×4bZxz.net
M68×4
M72X3
M72×4| |tt||M76×3
M76×4
M85×3
M85×4
M90×3
M90×4||tt ||M95×3
M100x3
M100×4
M110x3
M110X4
M115×3
M120×3||tt ||M120×4
M130X4
M130X6
基度直经基度中很
尺
寸
36||tt| |39
42
42
45
48
48
52
52
56
60
60
64
64
68
72
72
76|| tt||76
85
85
90
90
95
100
100||tt| |110
110
115
120
120
130
130
尺
4
34.05
37.05
39.08
40.05
43.05
44.52
46.05
48.75|| tt||50.05
53.40
58.05
57.40
62.05
61.40
65.40
70.05||tt| |69.40
74.05
73.40
83.05
82.40
88.05
87.40
93.05
98.05
97.40
108.05
107.40
113.05
118.05
117.40
127.40
126.10|| tt||maximal
35.87
38.87
41.87
41.87
44.87
47.87
47.87||tt| |51.87
51.87
55.87
59.87
59.87
63.87
63.87
67.87
71.87
71.87
75.87
75.87
84.87
84.87
89.87
89.87
94.87|| tt||99.87
99.87
109.87
109.87
114.87
119.87
119.87
129.87||tt| |129.87
JB/T 64691992
结表
2
大
最
小
35.62|| tt||38.62
41.62
41.62
44.62
47.62
47.62
51.62
51.62||tt| |55.62
59.62
59.62
63.62
63.62
67.62
71.62
71.62
75.62
75.62
84.62
84.62
89.62
89.62
94.62
99.62
99.62|| tt||109.62
109.62
114.62
119.62
119.62
129.62
129.62
很||tt| |上了店
-0.13
下庆店
- 0. 38
最好
33.99
36.99
39.02
39.99
42.99
44.46
45.99
48.69
49. 99
53.34
57.99
57. 34
61. 99
61.34
65.34
69.99
69.34
73.98
73.33
82.98
82.33| |tt||87.98
87.33
92.98
97.98
97.33
107.98
107.33
112.98||tt ||117.98
117.33
127.32
126.02
中
最
小
33. 93
36.93
38.93
39.90
42.90
44.36
45.89
48.59
49.89| |tt||53.24
57.89
57. 24
61.88
61.23
65.23
69.88
69.23
73.87
73.22
82.87| |tt||82.22
87.87
87.22
92.87
.97.86
97.21
107.86
107.21|| tt||112.86
117.85
117.20
127.19
125.89
微
上自定
0.06||tt ||0.07
-0.08
下自定
0.12
0.15
0.16
—0.17
mm|| tt||小很最好
32.75
35.75
37.13
38.75
41.75
42.59
44.75||tt ||46.59
48.75
51.67
56.75
55.67
60.75
59. 67
63.67
68.75
67.67
72.75
71.67
81.75
-0.18
-0.19
80.67
86.75
85.67
91.75
96.75
95.67
106.75
105.67
111.75
-0 . 20
— 0. 21
116.75
115.67
125.67
123.50
軺纹行
d||tt ||M135×4
M140×+
M140×6
M150×4
M150×6
M160×4
M160x6 |tt||M42
M45
M48
M52
M56
M60
M64
M68||tt ||M72
3
3.5
3.5
4
4
4.5
4.5
5
5
5.5
5. 5
6
6
6
基度应度基度中很
尺
寸尺
135|| tt||140
140
150
150
160
160
maximal value
26.79||tt ||29.78
32.78
35.76
38.76
41.75
44.75
47.74
51.74
55.72
59.72
63. 65
67.65
71.65
寸
132.40
137.40
136.10
147.40
146.10| |tt||157.40
156.10
大
d
大
最
134.87
139.87||tt ||139.87
149.87
149.87
159.87
159.87
微
minimum value
26.59||tt| |29.56
32.56
35.54
38.54
41.51
44.51
47.48
51.48
55.46
59.46
63.37
67.37
71.37
JB/T 64691992
结表
2||tt| |大
最
小
134.62
139.62
139.62
149.62
149.62
159.62
159.62
内容值
0.20
0. 22
0. 22
0. 22
0. 22
0. 24
0. 24
0. 26
0. 26
0.26
0.26
0. 28
0. 28
0. 28
很
上凯电
0.13
图
2
下凯电
-0.38||tt| |Maximum
132.32
137.32
136.02
147.32
146.02
157.32
156.02
中
最
小
132.18
137.18
135.88
147.18
145.88
157:18
155.88
3（倒黔度8:1000)
表
差
L=ld
最好
0. 27
0. 29
0.31
0.34
0.36
0. 39
0. 41
0.43
0. 47
0. 50
0.54
0.58
0. 61
0.65
minimum
0.17
0.19
0.21
0. 24
0. 26
0.29
0.31
0.33
0.36
0.39
0. 42
0.45
0.48||tt|>分度
mm
小很最好
130.67
135.67
133.50
145.67
— 0. 22||tt ||143.50
155.67
153.50
差值(d-d4)）
mm
(d-dg)
L =d+3t
maximum
0. 34
0.37
0.39
0.43
0. 46
0.49
0.51
0. 55
0. 60
0. 65
0. 74
0.81
minimum
0. 24
0. 27
0. 29
0.33
0.36
0.39
0. 41
0.45
0.47
0.50
0.57
0.63
L=1.5d
maximal||tt| |0.37
0.41
0.45
0.49
0.53
0.57
0.61
0.65
0.70
0. 76
0. 81
0.86
0. 92
0.97
minimum
0. 27||h||0.31||h||0. 35
0.38
0. 41
0.44
0.47
0.50
0.55
0.59
0. 63
0. 67
0. 71
0.76||tt|>4

M110
M115
M120
M125
M130
M140
M150
M160|| tt||螺分
6
6
6
6
6
6
6||tt| |6
6
6
6
6
6
6
軺纹电影
d
M27
M30
M33
M36
M39
M42
M45
M48| |tt||M52
M56
M60
M64
M68
M72
5
Maximum value|| tt||75.65
79.65
84.65
89.65
94.59
99.59
109.59
124.59||tt| |139.59
149.59
大
a
很
minimum value
75.37
79.37
84.37
89.37
94.29
99.29
109.29
124.29
139.29
149.29
basic diameter基度中很
尺
寸
27
30
33
36
39
42
45
48
52
56
60
64
68
72| |tt||尺
寸
25.05
27.73
30.73
33.40
36.40
39.08||tt ||42.08
44.75
48.75
52.43
56.43
60.10
64.10
68.10
分度值
0.28
0. 28
0.28
0. 28
0. 30
0. 30||h||0.30||h||0.30||h||0. 30
0.30
JB/T 64691992
组表
3
L=1d
最好
0.68| |tt||0.72
0.77
0. 81
0.86
0.90
0. 99
1.12
1.26
1.35
-
表4
大
maximal
26.79
29.78
32.78
35.76
38.76
41.75
44. 75
47.74
51.74
55.72
59.72
63.65
67.65
71.65
最| |tt||小
26.59
29.56
32.56
35.54
38.54
41.51
44.51||tt ||47. 48
51.48
55.46
59.46
63.37
67.37
71.37
微
minimum| |tt||0.53
0.56
0.60
0.63
0.66
0.70
0.77
0.88||tt ||0.98
1. 05
-
差
值
(d-da)
L=d+3t
maximal
0.88
0.97
1.06
1.15
1.29
1.42
（倒黔度8t1000）
上自定|| tt||—0.21
—0.22
0.24
-0.25
0.26
0.28
0.35
下自看
-0.41
0.44
0.46
-0.49
0.52
--0.54
-0.63||tt ||Maximum
24.84
27.50
30.50
33.16
36.16
38.83
41.83
44.49
48.49
52.15
56.15
59.75
63.75
67.75
minimum
0. 69
0.76
0.83
0. 90
1.00
1.11
中
最
小
24.64
27.29
30.29| |tt||32.94
35.94
38.59
41.59
44.24
48.24
51.88
55.88||tt ||59.47
63.47
67.47
mm
L=1.5d
maximal
1.03
1.08|| tt||1.15
1.22
1.28
1.35
1.48
1.69
1.89
2. 02.|tt|| 21
—0.23
0.24
0.25
0.26
—0.28
0.35
下了内||tt| |-0.41
0. 44
0.46
-0.49
0.51
0.55
—0.63
minimum
0.80
0.84
0.89
0. 94
1.00
1.05
1.16
1.31
1.47
1.58
mm
小很最好
23.11
25.48
28.48
30.86
33.86
35.23
39.23
41.60|| tt||45.60
48. 97
52.97
56.28
60.28
64.28
Thread specification
d
M76
M80
M85
M90
M95
M100
M110
M115
M120
M125
M130
M140
M150|| tt | | M160 | | tt | |85
90
95
100
110
115
120
125
130
140
150
160
全
inch
72.10
76.10
81.10|| tt||86.10
91.10
96.10
106.10
111.10
116.10
Max
75+65|| tt||79.65
84.65
89.65
94.59
99.59
109.59
121.10
124.59||tt| |126.10
136.10
146.10
156.10
1
139.59
149.59
JB/T64691992||tt| |Continued table
4
Large
Most
Small
75.37
79.37
84.37
89.37
94.29
99.29
109.29
124.29
139.29
149.29
Light
Upper deviation
- 0. 35
-0.41
This standard is proposed and managed by Shanghai Power Generation Equipment Complete Design Institute. Lower deviation
-0.63
0.71
Maximum
71.75
75.75
80.75
85.75
90.69
95.69
105.69
110.69
115.69
120.69
125.69
135.69
145.69| | tt | tt||75.47
80.47
85.47
90.39
95.39
105-39
110.39
115.39|| tt||120.39
125.39
135.39
145.39
155.39
Diameter
Upper deviation
-0.35|| tt||—0.41
Lower deviation
-0.63
-0.71
mm
Maximum small diameter
68.28
72.28
77.28
82.28
87.23
92.23
102.23
107.23
112.23
117.23| |tt||122.23
132.23
142.23
152.23
6
E
ED
1||tt ||4
JB/T6469E1992
*
yig
degree by g
2A
★
880A1230| |tt||19XXA XX
1
1/16
X&
XXX
halogen
X/X||tt| |t
100044
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19XXA1
|tt||
669
L/ar
39
105-39
110.39
115.39
120.39
125.39
135.39
145.39
155.39
很
上头发
-0.35
—0.41
下头发
-0.63
-0.71| |ht||mm||ht||小很最好||ht||68.28||ht||72.28||hh||77.28||hh||82.28||hh||87.23||hh||92.23|| tt||102.23
107.23
112.23
117.23
122.23
132.23
142.23
152.23||tt| |6
E
ED
1
4
JB/T6469E1992
*
yig||tt| |度由g
2A
★
880A1230
19XXA XX
1
1/16
X&| |tt||XXX
卤
X/X
t
100044
XXX,XXX
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XXX.XX0
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669
L/ar
39
105-39
110.39
115.39
120.39
125.39
135.39
145.39
155.39
很
上头发
-0.35
—0.41
下头发
-0.63
-0.71| |ht||mm||ht||小很最好||ht||68.28||ht||72.28||hh||77.28||hh||82.28||hh||87.23||hh||92.23|| tt||102.23
107.23
112.23
117.23
122.23
132.23
142.23
152.23||tt| |6
E
ED
1
4
JB/T6469E1992
*
yig||tt| |度由g
2A
★
880A1230
19XXA XX
1
1/16
X&| |tt||XXX
卤
X/X
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100044
XXX,XXX
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669
L/ar
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