Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND HARDNESS MEASURING DEVICE, AND GROUND HARDNESS MEASURING METHOD
To provide a ground hardness measuring device with high reliability of ground hardness measuring performance and a simple structure, and to provide a ground hardness measuring method with high reliability of ground hardness measuring performance.SOLUTION: A ground hardness measuring device comprises: a cylindrical case (3) equipped in a compaction machine; a shaft member (4) arranged in the case so as to ascend/descend; a weight (5) equipped in the shaft member; an acceleration sensor (6) attached to the weight; a shaft member driving mechanism (7) including a rack member (15) provided in the shaft member, an intermittent gear (16) capable of engaging with the rack member, and a plurality of gear members connected with the intermittent gear in a communication manner; a driving motor (8); and one or more energization springs (9) stretched between an upper end of the shaft member and the case. After driving the shaft member and the weight up to the upper limit position by the driving motor while elongating the energization spring, in a state where the engagement of the intermittent gear and the rack member is released, the shaft member and the weight are made to quickly fall to collide with a ground surface by using energization force of the energization spring, and an acceleration at the time of collision is measured by the acceleration sensor.SELECTED DRAWING: Figure 4
【課題】地面の固さを測定する機能の信頼性が高く且つ簡単な構造の地面の固さ測定装置を提供すること、信頼性が高い地面の固さ測定方法を提供すること。【解決手段】締固め機械に装備した筒状のケース(3)と、ケースに昇降可能に配設された軸部材(4)と、軸部材に装備された重錘(5)と、重錘に付設した加速度センサー(6)と、軸部材に設けたラック部材(15)と、このラック部材に噛合可能な間欠ギヤ(16)と、この間欠ギヤに連動連結された複数のギヤ部材を含む軸部材駆動機構(7)と、駆動モータ(8)と、軸部材の上端部とケースとに架着された１又は複数の付勢用スプリング(9)とを備え、付勢用スプリングを伸長させながら駆動モータにより軸部材と重錘を上限位置まで駆動後に、間欠ギヤとラック部材の噛合を開放した状態で付勢用スプリングの付勢力を用いて軸部材と重錘を急降下させて地面に衝突させ、その衝突時の加速度を加速度センサーで計測する。【選択図】図４
GROUND HARDNESS MEASURING DEVICE, AND GROUND HARDNESS MEASURING METHOD
To provide a ground hardness measuring device with high reliability of ground hardness measuring performance and a simple structure, and to provide a ground hardness measuring method with high reliability of ground hardness measuring performance.SOLUTION: A ground hardness measuring device comprises: a cylindrical case (3) equipped in a compaction machine; a shaft member (4) arranged in the case so as to ascend/descend; a weight (5) equipped in the shaft member; an acceleration sensor (6) attached to the weight; a shaft member driving mechanism (7) including a rack member (15) provided in the shaft member, an intermittent gear (16) capable of engaging with the rack member, and a plurality of gear members connected with the intermittent gear in a communication manner; a driving motor (8); and one or more energization springs (9) stretched between an upper end of the shaft member and the case. After driving the shaft member and the weight up to the upper limit position by the driving motor while elongating the energization spring, in a state where the engagement of the intermittent gear and the rack member is released, the shaft member and the weight are made to quickly fall to collide with a ground surface by using energization force of the energization spring, and an acceleration at the time of collision is measured by the acceleration sensor.SELECTED DRAWING: Figure 4
【課題】地面の固さを測定する機能の信頼性が高く且つ簡単な構造の地面の固さ測定装置を提供すること、信頼性が高い地面の固さ測定方法を提供すること。【解決手段】締固め機械に装備した筒状のケース(3)と、ケースに昇降可能に配設された軸部材(4)と、軸部材に装備された重錘(5)と、重錘に付設した加速度センサー(6)と、軸部材に設けたラック部材(15)と、このラック部材に噛合可能な間欠ギヤ(16)と、この間欠ギヤに連動連結された複数のギヤ部材を含む軸部材駆動機構(7)と、駆動モータ(8)と、軸部材の上端部とケースとに架着された１又は複数の付勢用スプリング(9)とを備え、付勢用スプリングを伸長させながら駆動モータにより軸部材と重錘を上限位置まで駆動後に、間欠ギヤとラック部材の噛合を開放した状態で付勢用スプリングの付勢力を用いて軸部材と重錘を急降下させて地面に衝突させ、その衝突時の加速度を加速度センサーで計測する。【選択図】図４
GROUND HARDNESS MEASURING DEVICE, AND GROUND HARDNESS MEASURING METHOD
地面の固さ測定装置と地面の固さ測定方法
ONODERA TSUTOMU (Autor:in) / SATO MASASHI (Autor:in)
16.03.2023
Patent
Elektronische Ressource
Japanisch
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