HG/T 21566-1995 Stirring drive device--single-point frame HG/T21566-1995 standard download decompression password: www.bzxz.net

Single-pivot frame for agitator drive
HG21566-95
1 Subject content and scope of application
This standard specifies the type, size, technical requirements and use regulations of a single-pivot frame for agitator drive (hereinafter referred to as the frame).Www.bzxZ.net
This standard is applicable to the frame with a transmission shaft diameter of 30~-160mm, used to support the reducer and transmission shaft. 53
GB1184
GB1804
GB6414
GB9439
GB11352
HGJ203
JB2536
HG21537.7
Cited standards
《Technical conditions for high-quality carbon structural steel》
《Carbon structural steel》
《Provisions for shape and position tolerances without tolerances》
《Limit deviations of dimensions without tolerances for tolerances and fits》
《Casting dimensional tolerances》
《Gray cast iron》
《Casting carbon steel for general engineering》
《General provisions for construction and acceptance specifications for chemical machinery installation projects》
《Painting, packaging and transportation of pressure vessels》
《Stirring and transmission device - carbon steel stuffing box》
《Stirring and transmission device - stainless steel stuffing box》HG 21537.8 "
HG21563
HG21565
HG21568
"Mixing transmission device system combination, selection and technical requirements" "Mixing transmission device-installation bottom cover"
"Mixing transmission device drive shaft"
"Mixing transmission device with short section coupling" HG 21569.1
HG21571
HG21572
"Mixing transmission device-mechanical seal"
"Mixing transmission device-mechanical seal circulation protection system" Type, basic parameters and dimensions
3.1 Type
The type of the frame shall be as specified in Table 3.1.
Frame type
Frame type
Frame support
Single support
Single support
Applicable seal plate
(HG 21537.7~8.HG 21571)
Mechanical seal without built-in bearing
Packing seal and mechanical seal with built-in bearing3.2 Basic parameters and dimensions
Applicable transmission shaft
(HG21568)
AXX type
BXX type
With short section coupling
(HG 21569.1)
The basic parameters and main dimensions of the frame shall be in accordance with the provisions of Figures 3.2-1, 3.2-2 and Tables 3.2-1~3.2-3. 55
Figure 3.2~-1 Part numbers of type A and type B frames with nominal diameters of 200, 250.300mm
Angular contact ball bearing
Bearing seat
Bearing cover
·Quantity
Detailed table
ZG230-450
Standard parts
Standard parts
Q235—A
Q235—A
Standard parts
Q235-A or HT200
Fine blanket
Q235—A
Kraft paper
Note: ① When the nominal diameter of the frame is the same as that of the installation bottom cover (HG21565), there are no parts 25.26 and 27. ②The frame body is allowed to use plate welding structure. Preparation
Table 3. 2-1
GB 9877.1-88
GB 292-83
GB 812-88
GB858-88
GB 899--88
GB 6170--86
GB93-87
GB 812-88
GB 858-88
GB1152--89
GB 5780-86
GB6170-86
GB95-85
JB/ZQ4606-86
GB 899 - 88
GB 6170-86
GB 93-87
GB 899-88
GB 6170—86
GB95—85
1007-6-5-43212
Figure 3.2-2 A-type and B-type frames with nominal diameters of 400, 500, and 700 mm 17
Angular contact ball bearing
Bearing seat
Bearing cover
ZG230—450
Standard parts| |tt||Standard parts
Q235—A
Q235-A
Q235—A or HT200
Fine felt
Standard parts
Kraft paper
Note: ①When the nominal diameter of the frame is the same as the installation bottom cover (HG21565), there are no parts 21.22, 23②The frame body is allowed to adopt plate welding structure. Preparation
GB9877.1-88
GB292-83
GB812-88
GB5780-86
GB 93—87
GB812-88
GB 85 8-88
GB5780-86
GB6170-86
GB 95-85
JB/ZQ4606--86
GB1152—89
GB 899-88
GB 6170-86 | |tt | 2-22
64516 —26
74520-426
8802826
3991514
Table 3.2—3
Frame mass (kg)
146208
462154
46236582
The connection dimensions between the connecting plate and the reducer are determined according to the reducer model selected by the user. The outer dimensions of the connecting plate are in accordance with the provisions of Table 3.0.33
3.2—3.
Technical requirements
4.0.1 The material and performance of the frame shall comply with the corresponding material standards: gray cast iron castings shall comply with GB9439;
carbon steel castings shall comply with GB11352;
ordinary carbon steel shall comply with GB700;
high-quality carbon steel shall comply with GB699
4.0.2 Castings shall be subjected to aging treatment to eliminate internal stress. No defects such as pores, slag holes, sand holes, cracks, etc. are allowed on the mating surfaces of the castings after processing. In addition to the mating surfaces, there shall generally be no defects that affect the strength of the frame. 4.0.3 Casting tolerances shall comply with the requirements of GB6414CT14. 4.0.4 The limit deviation of the unindicated tolerance dimensions of the machined surfaces shall comply with the provisions of GB1804. The hole is H12, the shaft is h12, and the length is JS12 (js12).
The unformed tolerance of the machined surface is in accordance with the B-grade accuracy of GB1184. 4.0.5 The assembly of the frame shall be in accordance with the provisions of HGJ203 and HG21563. 4.0.6 The painting, packaging and transportation shall be in accordance with the provisions of JB2536. When the frame is packaged, the holes of the surfaces with matching requirements shall be covered with soft protective pads (covers).
Usage regulations
5.0.1 The selection of the frame shall comply with the provisions of HG21563. 5.0.2 When a single-point frame is used and the bearing of the output shaft of the reducer is used as a support point, the positions of the two support points and their distance L shall be in accordance with the provisions of Figure 5.0.2 and Table 5.0.2. In other support situations, the position of the intermediate bearing support point on the frame remains unchanged, and the support point spacing L is determined by the designer according to the specific situation. Reducer output shaft support point position
Frame intermediate bearing position
Frame type
Frame nominal diameter
Support distance L
Table 5, 0. 2
5.0.3 The rack of this standard is suitable for the installation form where the motor output shaft is parallel to the reducer output shaft. If the motor output shaft is perpendicular to the reducer output shaft, special instructions should be given when ordering. The reducer generally used is selected according to the provisions of Appendix A. 5.0.4 The position of the window at the bottom of the rack should correspond to the position of the mechanical seal, the clamping studs of the stuffing box, the sealing liquid inlet and outlet, the lifting screw holes, the clamping screws, etc.
5.0.5 The two mounting platforms on the upper side of the rack are used to install the storage tank and booster pump in the mechanical seal circulation protection system specified in HG21572.
5.0.6 The window on the upper part of the rack is used to install or remove the short-section coupling (HG21569.1), the rack bearing box and the sealing device (HG 21537.7~8, HG 21571). 63
HG2156695 frame
Marking and marking example
Marking example
Drive shaft diameter d
Frame nominal diameter
Frame type code (see Table 3.1)
A frame using a mechanical seal without built-in bearing, with a drive shaft diameter of 100mm and a frame nominal diameter of 400mm, is marked as:
HG21566-95
Frame A400100
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