HG 21546.3-1993 HG21546.3-1993 Standard download decompression password: www.bzxz.net

Roller for rotary drum
HG 21546. 3--93
1 Subject content and scope of application
This standard specifies the type, basic parameters, dimensions, technical requirements and relevant use regulations of roller for rotary drum.
This standard applies to rotary drum commonly used in chemical production. 21
Reference standard
HG21546.1-93 "Types and technical conditions of rollers and rollers for rotary drum". 22
3. Type, basic parameters and dimensions
The type, basic parameters and dimensions of roller shall comply with the provisions of Table 3.012 in HG21546.1-93, as well as Figures 3-1 to 3-2 and Tables 3-1 to 3-2 of this standard. Figure 3-1
Half cone angle
8~15
Anchor bolt
Number nM
4—30
In hole diameter
Figure 3--2
Half cone angle
8~～15
Table 3—2
Anchor bolt
Number nM
In hole diameter
4—30
4—30
4Technical requirements
Contact stress value shall not exceed 400MPa.
·4.0.2Other technical requirements shall comply with the technical requirements in HG21546.1-93 "Types and technical requirements of supporting wheels and retaining wheels for rotating cylinders". .25
5 Note
When the diameter of the rotary cylinder is less than 1000mm, if a 200 or 300mm supporting wheel with a convex edge structure is selected, a stopper wheel may not be provided (because the axial force of the downward movement is also small, and the supporting wheel with a convex edge can bear it). 5.0.2 The semi-cone angle of the stopper wheel is represented by in the construction drawing. The actual value is determined by the user according to the selected roller diameter, but it should be within the applicable range listed in the table to adapt to the structural characteristics of the bearing.
The maximum thrust that the stopper wheel can withstand is calculated as follows: 5.0.3
Fad=Gsinα
Where:
-The angle between the center line of the rotary cylinder and the horizontal plane. In this standard, it is calculated as 3°.
G--The total weight of the rotating part. Including the weight of the cylinder and internal parts, the weight of the kiln lining, the weight of the material, the weight of the transmission gear and the roller, etc. 5.0.4
Marking example:
Total weight of rotating part t-80
Marking: Gear wheel
DL80-400bzxZ.net
Gear wheel diameter 400
HG 21546.3-93-2
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