Design Specification

View: 937  From: HONG'S BELT  Date: 2013-01-06

Basic Dimension

The design of the conveyor system are divided into 4 major parts which are belt, drive / Idle part, supporting structure and drive method. The belt structure has been outlined at previous section. The other 3 parts will explain below with details:
Section X-X’

D : 1-10mm
The dimension of belt will have a variation because of temperature change. Please refer to the chapter of Thermal Expansion Calculation to confirm the design dimension.
Dimension Table

Unit : mm
Sprocket
A
B(min)
C(max)
T
K
HW
S-HW
PD
RH
SH
Acetal
SUS304
Series 100
8T
57
65
70
16
7X7
38
34
133
45.5
38.5
10T
72
82
86
 
164
 
12T
88
100
103
38
196
16T
121
132
136
 
260
 
Series 200
8T
27
33
35
10
6X6
22
7.5
64
30.5
- -
12T
43
50
52
7X7
38
34
98
45.5
38.5
20T
76
83
85
 
163
 
Series 300
8T
51
62
63
15
7X7
12
- -
120
45.5
38.5
12T
80
82
94
- -
185
Series 400
8T
10
14
16
7
3X3
- -
4
26
12.5
- -
 
12T
16
21
22
4X4
- -
38.5
25.3
- -
 
24T
35
38
41
8X8
25.5
12
76.5
45.5
38.5
Series  500
12T
41
52
53
13
7X7
10.5
5
93
45.5
38.5
24T
89
100
102
190
For calculation of conveyor belt  width in highest temperature, please refer to thermal expansion / contraction calculation formula. For supporting method at conveyor driving section, please refer to specification of belt support method in accordance with conveyor design.
Pay for manufacturing particular dimensions of Stainless Steel Sprocket Bore is acceptable.
S-HW is the hub dimension of Stainless Steel Drive Sprocket.

 

Center Drive

  • To avoid adopting auxiliary supporting bearings at the idler parts on both sides.

Minimum Diameter of Idler Roller - D ( Return Way )


 

Unit : mm

Series

100

200

300

400

500

íD (min.)

180

150

180

60

150

 

 

Idler Roller


Section X-X’


The dimension of belt will have a variation because of temperature change. Please refer to Expansion Calculation in left menu to confirm the design dimension.

Dimension  Table


Unit : mm

Roller Diameter ( min.)

A ( min. )

B ( min. )

C ( max. )

D ( min. )

E ( max. )

Series 100

104

76 【 1

38 【 2

57

3

114

Series 200

54

40 【 1

18 【 2

27

3

59

Series 300

102

69 【 1

34 【 2

51

3

117

Series 400

20

19 【 1

7 【 2

10

2

27

Series 500

82

56 【 1

27 【 2

41

3

95

 

Precision

Unit : mm

Conveyor Size

( Width )

Length

≥ 5M

≥ 10M

≥ 15M

≥ 20M

≥ 25M

≥ 30M

≥ 350

± 2.0

± 2.5

± 2.5

± 3.0

± 3.0

± 3.5

≥ 500

± 2.5

± 2.5

± 2.5

± 3.0

± 3.5

± 4.0

≥ 650

± 2.5

± 2.5

± 3.0

± 3.5

± 4.0

± 4.5

≥ 800

± 2.5

± 3.0

± 3.5

± 4.0

± 4.5

± 5.0

≥ 1000

± 3.0

± 3.5

± 4.0

± 4.5

± 5.0

± 5.5

When the conveyor is designed to adopt HONGSBELT modular plastic conveyor belt with steel links, the angle between drive shaft and conveyor structure should be accurate in perpendicular, to prevent the deformation of stainless steel rods that would cause the belt to be damaged because of it does not operate in parallel.

 

Expansion Calculation

Most of objects have the phenomenon of thermal expansion and contraction. Therefore, the phenomenon of thermal expansion and contraction of material caused by temperature change must be considered while designing the conveyor system.

Temperature Rang of Belt Materials


Belt Materials

Polypropylene Polyethylene

NYLON

Actel

Temperature Range (°C)

1~100

-60~60

-30~150

-40~60

The table above is the standard temperature range of plastic materials for general application. For the standard temperature range of HONGSBELT belt materials, please refer to Basic Data unit in Products Chapter.

Expansion & Contraction Comparison Table - e


Unit : mm / M / °C

Belt Materials

Material Used for Supporting

Metal

Polyproeylene

Polyethylene

NYLON

Actel

Teflon

HDPE & UHMW

Carbon Steel

Aluminum Alloy

Stainless Steel

73°C~30°C

30°C~99°C

0.12

0.23

0.07

0.09

0.12

0.14

0.18

0.01

0.02

0.01

Expansion & Contraction Calculation Formula


Both length and width of belt will be affected by the ambient temperature change, such as belt will extend when temperature increases and contract when temperature decreases; this part should be considered with a deliberate calculation while designing the conveyor system. The calculation formula of dimension variation  are as follow.

FORMULA :

TC = LI × ( To - TI )× e

Symbol

  Definition

Unit

TC

Dimension change 

mm

TCL

Length after temperature change

mm

TCW

Width after  temperature change

mm

LI

Dimension at initial temperature

M

To

Operating temperature

°C

TI

Initial temperature

°C

Example 1

The conveyor belt in P.P. material with the dimension in 18.3m for the length and 3.0m for belt width, start form the operating temperature 21℃. What will be the result of the belt length and width  at operating temperature increase up to 45°C ?

 

TCL = 18.3 × ( 45 - 21 ) × 0.124 = 54.5 ( mm )

TCW = 3 × ( 45 - 21 ) × 0.124 = 8.9 ( mm )

 

From the calculation result, we know that the length of belt will increase approximately up to 55mm and the width of belt may increase nearly 9 mm under temperature range 21 ~ 45°C.

 

 

Example 2

The conveyor belt in P.E. material with the dimension in 18.3m for the length and 0.8m for belt width, start form the operating temperature 10℃. What will be the result of the belt length and width  at operating temperature increase down to -40°C ?

 

TCL = 18.3 × ( - 40 - 10 ) × 0.231 = - 211.36 ( mm )

TCW = 0.8 × ( - 40 - 10 ) × 0.231 = - 9.24 ( mm )

 

From the calculation result, we know that the length of belt will reduce approximately 211.36 mm and the width of belt may reduce nearly 9.24mm, under temperature range 10 ~ -40°C.

Prefix V

Chemical Name

Temperature

 Condition

Belt Materials  

ACETAL

NYLON

P . E .

P . P .

Vinegar Still Agitated Aerated  

21°C

N

 

O

O

O = OK, N = NO

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