ROTATION TRANSMISSION DEVICE WITH TORQUE MEASURING DEVICE

• Main Authors: SAITO TOMOHARU, UEDA TORU
• Format: Patent
• Language: English; Japanese
• Published: 07.05.2015
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To reconcile at a high level securement of durability which is necessary for preventing fatigue breakdown caused by repeated torque transmission with securement of elastic torsional deformation volume per unit torque which is necessary for heightening accuracy or resolution of torque measurement, concerning a spring part 65a of a torsion bar 15a.SOLUTION: The ratio d/dof an inner diameter dimension dto an outer diameter dimension dof a circular pipe part 66 constituting an axial direction intermediate part of a spring part 65a is set in the range of 0.5≤d/d≤0.8. 【課題】トーションバー１５ａのばね部６５ａに関して、繰り返しのトルク伝達による疲労破壊を防止する為に必要な耐久性の確保と、トルク測定の精度や分解能を高める為に必要な単位トルク当たりの弾性的な捩れ変形量の確保とを、高レベルで両立させる。【解決手段】前記ばね部６５ａの軸方向中間部を構成する円管部６６の内径寸法ｄiと外径寸法ｄoとの比ｄi／ｄoを、０．５ ｄi／ｄo ０．８の範囲に収める。【選択図】図１