HG/T 21569.1-1995 Stirring drive device with short coupling HG/T21569.1-1995 standard download decompression password: www.bzxz.net

Mixing transmission device with short coupling
HG 21569.1--95
Subject content and scope of application
This standard specifies the type, size, technical requirements, inspection and measurement, selection, marking and other requirements of mixing transmission device with short coupling.
This standard is applicable to the connection between the output shaft of the reducer and the transmission shaft of the mixing transmission device, and allows the space left after the short coupling is disassembled without dismantling the reducer and the frame for loading and unloading the lower half coupling, the intermediate bearing box of the frame and the transmission shaft sealing device.
GB1095
GB1184
GB1801
GB1804
GB4385
GB9439
GB11352
HG21563
HG 21568
Referenced standards
"Sectional dimensions of flat keys and keyways"
"Provisions for shape and position tolerances without tolerances""Preferred and selected fits for basic dimensions up to 500mm""Limit deviations for dimensions without tolerances for shape and position tolerances""General technical conditions for free forgings on hammers""Gray cast iron parts"
"Cast carbon steel for general engineering"
"System combination, selection and technical requirements for agitator transmission device""Agitator transmission device - drive shaft"
Type, size, material
The matching selection of short-section couplings with racks and drive shafts shall be in accordance with the provisions of Table 3.0.1. Matching selection table
With short-section coupling
Frame (single-point, double-point)
Transmission shaft
With short-section coupling, the type and size shall be in accordance with the provisions of Figure 3.0.2 and Table 3.0.2. 3.0.2
3.0.3The specifications of short-section coupling shall be determined according to the shaft diameter d of the upper end of the transmission shaft specified in HG21568. The shaft hole of the upper half coupling with short-section coupling shall be determined according to the shaft diameter of the selected reducer output shaft. It is allowed to use a combination of different shaft diameters of the reducer output shaft and the shaft diameter d of the upper end of the transmission shaft. However, its shaft diameter shall not be greater than d1. , upper coupling
6. Cylindrical pin
. Screw
8. Shaft end retaining ring
Figure 3.0.2 Coupling with short section
3. Short section shaft connector
4. Reamed hole bolt
Lower coupling
Main dimensions of coupling with short section (mm) Lo
(N·m)
(r/min）
Note: ① Coupling with short section is divided into two specifications: A type and B type, and the difference lies in the length L. , L are inconsistent. Table 3.0.2
Mass (kg)
② The specifications and main dimensions of the coupling with short section are determined according to the shaft head d of the transmission shaft. When the shaft head size of the reducer output shaft is different from the shaft head di of the transmission shaft, only the shaft hole and keyway size of the upper coupling need to be adjusted accordingly, without affecting the selection of other dimensions and specifications of the coupling with short section.
The parts and materials of the coupling with short section shall be as specified in Table 3.0.4. Parts and materials
Upper coupling
Lower coupling
Short section connector
Dumping hole bolts
Cylindrical pin
Shaft end retaining ring
HT250 (code HT)
ZG270-500 (code 2G)
35 (forged steel) (code 35)
Q235-A
GB9439
GB11352
GB4385 (Grade I)
GB6170
Technical requirements
4.0.1 The unmarked dimensional tolerances of the coupling shall comply with Grade IT14 of GB1804, and the unmarked shape and position tolerances shall comply with Grade B of GB1184.
4.0.2 The keyway size and deviation of the shaft hole shall comply with the provisions of GB1095. 4.0.3 The matching of the shaft hole and the shaft shall comply with the provisions of Table 4.0.3. Matching of the shaft hole and the shaft of the coupling
>30~50
Matching code (GB1801)
The selection of couplings with short sections shall comply with the provisions of HG21563 and 3.0.1 and 3.0.3 of this standard. The shaft hole size of the upper coupling shall be determined according to the shaft diameter of the reducer output shaft, 100wwW.bzxz.Net
HG 21569.1-95 Coupling
Marking and marking examples
6.1 Marking
Material code (see Table 3.0.4)
I. Upper coupling aperture
Single-point frame: same as the output shaft diameter of the reducer Double-point frame: same as the lower coupling aperture If the upper and lower coupling apertures are the same, the lower coupling aperture (i.e. the shaft end diameter d of the transmission shaft) can be omitted. Coupling type with short section (A or B)
6.2 Marking examples
Example 1: Lower coupling aperture d,=80mm, upper coupling aperture 70mm, material HT250 A type with short section Coupling, which is marked as:
HG21569.1--95 Coupling A80/70--HT Example 2: The B-type coupling with a short section with an upper and lower coupling hole diameter of 100mm and a material of ZG270-500 is marked as: HG21569.1--95 Coupling B100-ZG
Proposer, editor-in-chief
Additional instructions
and main drafters
Proposer: Equipment Design Technology Center Station of Ministry of Chemical Industry Editor-in-chief: Shanghai Pharmaceutical Design Institute
Equipment Design Technology Center Station of Ministry of Chemical Industry
Main drafters: Bao Aiyuan Yu Jun
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