CALCULATION CONTROL METHOD FOR PREDICTED VALUE OF JUMPING TORQUE OF TOOTHED BELT

• Main Authors: NISHIDA SHUHEI, MARUYAMA YUJI, MIZUMOTO TAKUMI, OSAKI YUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 01.02.2023
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To disclose an optimum engagement transmission belt that prevents jumping from occurring by accurately calculating a predicted value of the jumping torque of a toothed belt.SOLUTION: A calculated value of a jumping torque Tq with substitution of various kinds of parameter values: a product ES of a vertical elasticity modulus E and a cross section area S of a toothed belt 1, a tooth height h, a pulley pitch diameter Rr, a pulley pitch diameter Rn, initial tension T0, a tension-side span length Lt, a loosening-side span length Ls, a winding angle θr, and a winding angle θn, into Formula (1) to Formula (3), and an actual value of the jumping torque Tq are compared. A value of an entire correction coefficient K and a value of an engagement correction coefficient Kmn of a driven pulley which are predetermined as values that minimize an average value of a difference between the values are stored in a storage unit 12. The stored values of the various parameters, the value of the entire correction coefficient K, and the value of the engagement correction coefficient Kmn are substituted into Formula (1) to Formula (3), thus calculating the jumping torque Tq of the toothed belt 1 which is wound on a drive pulley DR and the driven pulley DN.SELECTED DRAWING: Figure 1 【課題】精度よく歯付ベルトのジャンピングトルクの予測値を算出することにより、ジャンピングを発生させない最適なかみ合い伝動ベルトを提示する。【解決手段】縦弾性率Ｅと歯付ベルト１の断面積Ｓとの積ＥＳ、歯高さｈ、プーリピッチ径Ｒｒ、プーリピッチ径Ｒｎ、初張力Ｔ0、張り側スパン長さＬｔ、緩み側スパン長さＬｓ、巻付き角度θｒ、巻付き角度θｎの各種パラメータ値を、式（１）～式（３）に代入した際のジャンピングトルクＴｑの計算値と、ジャンピングトルクＴｑの実測値とを比較し、その差の平均値が最小となる値として予め決定された、全体補正係数Ｋの値、及び、従動プーリのかみあい補正係数Ｋｍｎの値を記憶部１２に記憶させ、式（１）～式（３）に、記憶した各種パラメータの値、全体補正係数Ｋの値、及び、かみあい補正係数Ｋｍｎの値を代入し、駆動プーリＤＲと従動プーリＤＮに巻掛ける歯付ベルト１のジャンピングトルクＴｑを算出する。【選択図】図１