Conveyor Chain - Tsubaki

CableveyorSelection ProcedureSample SelectionExample1. Situation . . . . . . . . . . . . . . . . . . .Indoor, normal temperatures 5. Allowable bending radius2. Moving stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29.5 ft. . . . . . . . . . . . . . . .cable 10.63 inches, oil hoses 10.24 inches3. Number and external diameter of the cables or hoses . . . . . 6. The cables or hoses will be set horizontally on one line.. . . . . . . . . . . . . . . . . .cables 1.73 X 2, oil hoses 1.42 X 2 7 The fixed bracket will be in the middle of the length of travel.4. Weight at installation . . . . . .cables 2.01 lbs./ft. X 2, oil hoses 8. Speed of travel . . . . . . . . . . . . . . . . . . . . . . . . . . .100 ft./min.. . . . . . . . . . . . . . . . . .1.34 lbs./ft. X 2, total weight 6.7 lbs./ft. 9. Vibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .noneSTEP 1. SpecificationsSee STEP 1 of the SELECTION outline (page B-162).STEP 2. Tentative selectionFrom the capability graph on page B-163, TK130 would satisfywhat is required since it has no supporting roller, and since themoving stroke is 29.5 ft. (length of travel) and 6.7 lbs./ft/ forcable and hose weight.STEP 6. Standard supporter selectionSupporter hole diameter may be calculated by the followingequation, where D 1.1d and where D is rounded off to thenearest even whole number, making the diameter 1.89 X 2,1.58 X 2.The supporter length Bʼ is –Bʼ = D + C + Min.36 (C = Min.1.42)Bʼ = {(1.89 X 2) + (1.58 X 2)} + (0.16 X 3) + 1.42 = 8.82 inch.SectionBSTEP 3. Selection of the bending radiusR11.81 and R15.35 will satisfy the requirement for a larger thanallowable bending radius (10.63 inches).STEP 4. Calculation of the number of chain linksOnce the chain size has tentatively been referred to, the numberof chain links may be calculated according to the followingequation.S 354– + R +15.35 ––––––– + 11.81 + 15.352 2l = ––––––––––– = ––––––––––––––––––––– = 44.9 links5.12 5.12The fraction is rounded off to lSTEP 5. Freespan confirmation= 45 LinksFreespan F (without support rollers) is confirmed by adding themargin length (Kʼ) + S/2).354130 X 45 links – (––––– + 300 )2Kʼ = ––––––––––––––––––––––––––– = 8.03 inches2S 354F0 = – + Kʼ + ––––– + 8.03 = 85.20 inches2 2From the capability graph on page B-163 a freespan of up to17.22 ft. is approved for a cable/hose weight of 6.72 lbs./ft.Since F 0 = 15.43 ft. is less than 17.22 ft., the TK130, R11.81chain size is the most suitable. If F0 > 17.22 ft., a larger chainsize should be used - TK180, R11.81, for example.ʻThe supporter dimension table shows that a supporter of thissize fits cables/hoses of 1.73 inches the best. When deciding onthe supporter dimensions, the next largest size appearing onthe table must be chosen when the calculated figure does notappear. For example, a value of 8.82 would take the next biggerfigure on the table, or 0.98. As the supporter length Bʼ becomesgreater the spaces between holes (C) must also increase tomaintain balance.STEP 7. Amount of supporters needed.l – 1 45 – 1 Where: l = Number of chain linksn = = = 22 pieces2 2 n = Number of supportersSTEP 8. Cableveyor choiceChain: TK130, R11.81Assembly: 45 links + brackets at both endsSupporter size: 2.56 X 9.84 (split type)Supporter hole diameter: D1 = 1.89, D2 = 1.89, D3 = 1.58 D4 = 1.58Supporter hole pitch: b1 = 1.77, b2 = 2.36, b3 = 2.17, b4 = 1.97, b5 = 1.58Sample LayoutSUPPORTER CHOICE TABLEHoleDiameterHolePitchʻMargin Length 204 Moving Stroke 354Freespan 185b1D1D2D31.89 1.89 1.58 1.58b2Margin Length 204 177b3b4D4b51.77 2.36 2.17 1.97 1.58ʻTsubaki of Canada Limited, 1630 Drew Road, Mississauga, ON L5S 1J6 Tel: 905-676-0400 Fax: 905-676-0904 Toll-Free: 800-263-7088 www.tsubaki.ca e-mail: info@tsubaki.caConveyor Chain B171