HG/T 21570-1995 Stirring transmission device--coupling HG/T21570-1995 standard download decompression password: www.bzxz.net

Agitation transmission device - coupling
HG21570--95
Subject content and scope of application
This standard specifies the type, size, technical requirements, selection, marking and other requirements of flange (C type), clamp shell (D type) and welded (E type) couplings for agitation transmission devices. This standard is applicable to the connection between the transmission shaft of the agitation transmission device and the stirring shaft inside the metal, and can also be applied to the cylindrical shaft system transmission of two coaxial lines connected for other purposes. 111
GB1095
GB1182~1184
GB 1801
GB1804Www.bzxZ.net
GB2100
GB4385
GB9439
GB11352
JB4730
HG21563
HG21568
Cited standards
《Provisions for shape and position tolerances without tolerances》《Priority and common fits for basic dimensions up to 500mm》《Limit deviations for dimensions without tolerances》
《Stainless and acid-resistant steel castings》
《General technical conditions for hammer free forgings》
《Casting carbon steel for general engineering》
《Non-destructive testing of pressure vessels》
《System combination, selection and technical requirements for agitator drive device》
3 Type, size and material
3.0.1 Type and size of C-type flange coupling shall comply with the provisions of Figure 3.0.1-1, 3.0.12 and Table 3.0.1-1, 3.0.1-2.
Upper half coupling
2 Lower half coupling
3. Reamed hole bolt
[4. Nut
5. Cylindrical pin
7. Shaft end retaining ring
Figure 3.0.1-1 Convex coupling (C type)
Main dimensions of C type flange coupling
Permissible torque
(N·m)
Permissible speed
(r/min)
Table 3.0.1--1
Figure 3.0.1-2 Shaft head for C type flange coupling Shaft head dimensions for C type flange coupling (mm) M
12±0.135||tt ||16±0.135
16±0.135
20±0.165
20±0.165
25±0.165
25±0.165
25±0.165
28±0.165
28±0.165
32±0.195
36±0.195
Table 3.0.1—2
3.0.2 The parts and materials of C-type flange coupling shall comply with the provisions of Table 3.0.2. Parts and materials (C-type flange coupling)
Upper coupling
Lower coupling
Reamed hole bolt
Cylindrical pin
Shaft end stop
HT250(GB 9439)
ZG270—500(GB11352)
35(GB4385I grade)
(GB27)
(GB6170)
(GB119)
(GB 819) | |tt | |(GB27)
OCr18Ni9
(GB6170)
OCr18Ni9
(GB 119)
OCr18Ni9
(GB819)
oCr18Ni9
(GB891)
Note: Other stainless steel materials can also be used, but the material grade should be indicated when ordering. 3.0.3D clamp coupling type and size shall be in accordance with the provisions of Figure 3.0.3-1, 3.0.3-2 and Table 3.0.3-1, 3.0.3-2.
1. Left (right) half
Coupling
Figure 3.0.3-1 Clamp shell coupling (D type)
Main dimensions of D type clamp shell coupling
Permissible torque
(N·m)
Table 3.0.3-1
Shaft head for D type clamp shell coupling
Figure 3.0.3-2
Shaft head dimensions for D type clamp shell coupling
Table 3.0.3-2
3.0.4The parts and materials of D type clamp shell coupling shall comply with the provisions of Table 3.0.4. Components and materials (D-type solid shell coupling)
Left (right) half coupling
(GB9439)
ZG270-500
(GB11352)
(GB4385I grade）
(GB5782)
(GB6170)
(GB 97. 2)
Note: Other stainless steel materials can also be used, but the material brand should be indicated when ordering. Material
Stainless steel
ZG1Cr18Ni9Ti
ZG1Cr18Ni12Mo2Ti
(GB2100)
OCr18Ni9
(GB4385I grade）
A2—50, A2-70
(GB5782)
OCr18Nig
(GB6170)
3.0.5The type and dimensions of E type welded coupling shall be in accordance with the requirements of Figure 3.0.5 and Table 3.0.5. D
Figure 3.0.5 Welded coupling (E type)
1. Transmission shaft head
2. Upper half coupling
3. Lower half coupling
4. Stirring shaft
3010586
40[110]91
50130115195
60145130|110
（H8/f7)
70170150125
185164|140
90195180|150
100|220/198170
110|240 220/190
120|280/245|210
130290|260220
140|300276235
160340306265
Main dimensions of welded coupling
8130135
123040
123645
4015010
M1213.515
M1617.518
281414
3.0.6 The parts and materials of E-type welded coupling shall comply with the provisions of Table 3.0.6. Parts and materials (E-type welded coupling) serial number
Upper and lower half coupling
20 (GB43851 grade)
8.8 grade (GB5782)
8 grade (GB6170)
Material or strength grade
Stainless steel
OCr18N19.0Cr17Ni12Mo2 (GB4385 grade)A2—50, A2-70 (GB5782)
OCr18N9 (GB6170)
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