HG 21546.2-1993 Support roller for rotary cylinder HG21546.2-1993 Standard download decompression password: www.bzxz.net

Support rollers for rotary drums
HG 21546.2-93
1 Subject content and scope of application
This standard specifies the type, basic parameters, dimensions, technical requirements and relevant use regulations of support rollers for rotary drums.
This standard applies to rotary drums commonly used in chemical production. 11
Referenced standard
HG21546.1-93 "Types and technical conditions of support rollers and retaining rollers for rotary drums". 12
3 Form, basic parameters and dimensions
The type, basic parameters and dimensions of support rollers shall comply with the provisions of Table 3.0.1-1 in HG21546.1--93, as well as Figures 3-1~~3-3 and Tables 3-1~~3-3 in this standard.
Figure 3-1
A+810 580160160 A+690 500
A+960710220180
A+840630
A+1160/740250200A+1040/660
Table 3-1
Anchor bolts
Number n
Figure 3-2
40600300L/ 2|A+1480810220300A+1270580608003301180A+1590900270300A+138064014
Table 3--2
Anchor bolts
Number 1M
Diameter
1000381200A+155 0|980330340A+134070080
10012004501400A+17001000360360A+148080070
Anchor bolt
Number nM
600500L/2/A+1470/1000265/340A+ 1300800100/8005501350A+16601210350340A+145090010010005501350A+16601210350340A+1450900—52bZxz.net
4Technical requirements
4.0.1The speed of the supporting roller is calculated as n<16r/min. 4.0.2The bearing temperature in the supporting roller shall not exceed 55℃. 4.0.3The light structure is mainly used for the rotary cylinder used in drying and cooling operations. The outer wall temperature of the cylinder is t≤100℃: The heavy structure is mainly used for the condition that the temperature inside the rotary cylinder is high and a kiln lining is required. The outer wall temperature of the cylinder is 100℃t≤200℃. 4.0.4During installation, the center line of the supporting roller should be parallel to the center line of the cylinder to ensure good contact between the supporting roller and the roller ring and uniform wear. When the whole down force is borne by the retaining wheel, there is no need to adjust the supporting wheel.
The center distance between the two supporting wheels is the dimension "A" in the base frame construction drawing, which is determined by the user according to the following formula to meet the needs of the change of the true diameter of the roller. Rolling ring diameter + supporting wheel diameter
Marking example:
Load: 20t300mm supporting wheel
Marking:
TI.20-300
HG 21546. 2—93--2
One ton
5.0.3 When the support load is ≥70t, the bearing should be equipped with a cooling water pipe and a cooling water bottle on the base. Whether it is necessary should be determined by the user according to the operating temperature. 5.0.4 Other technical requirements should comply with the technical conditions and assembly requirements in HG21546.1-93 "Types and technical conditions of supporting wheels and retaining wheels for rotating cylinders". 17
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