RU2005101718A - DYNAMETRIC KEY - Google Patents

DYNAMETRIC KEY Download PDF

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Publication number
RU2005101718A
RU2005101718A RU2005101718/02A RU2005101718A RU2005101718A RU 2005101718 A RU2005101718 A RU 2005101718A RU 2005101718/02 A RU2005101718/02 A RU 2005101718/02A RU 2005101718 A RU2005101718 A RU 2005101718A RU 2005101718 A RU2005101718 A RU 2005101718A
Authority
RU
Russia
Prior art keywords
strain gages
pair
diagonal
strain
bridge
Prior art date
Application number
RU2005101718/02A
Other languages
Russian (ru)
Other versions
RU2284260C1 (en
Inventor
Виталий Валентинович Устинов (RU)
Виталий Валентинович Устинов
Original Assignee
Зао "Инструм-Рэнд" (Ru)
Зао "Инструм-Рэнд"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Зао "Инструм-Рэнд" (Ru), Зао "Инструм-Рэнд" filed Critical Зао "Инструм-Рэнд" (Ru)
Priority to RU2005101718/02A priority Critical patent/RU2284260C1/en
Publication of RU2005101718A publication Critical patent/RU2005101718A/en
Application granted granted Critical
Publication of RU2284260C1 publication Critical patent/RU2284260C1/en

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  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Claims (1)

Динамометрический ключ, содержащий стержень с упругим участком с установленными на последнем тензорезисторами, расположенные на концах стержня ключевая головка, корпус с контрольно-измерительным устройством и рукоятка с элементом питания, тензорезисторы включены в мостовую схему, первая диагональ тензометрического моста подключена ко входу контрольно-измерительного устройства, а вторая диагональ - к элементу питания, отличающийся тем, что, с целью повышения точности контроля крутящего момента, ключ снабжен двумя дополнительными резисторами, тензорезисторы установлены парами и каждый из тензорезисторов в паре установлены на противоположных поверхностях упругого участка и воспринимают деформацию разного знака, первые выводы первой пары тензорезисторов соединены между собой и являются первым выводом первой диагонали моста, вторые их выводы являются выходами второй диагонали моста и соответственно через дополнительные резисторы соединены с первыми выводами второй пары тензорезисторов, при этом соединенные через дополнительные резисторы тензорезисторы расположены на одной поверхности упругого участка динамометрического ключа и воспринимают деформацию одного знака, вторые выводы второй пары тензорезисторов соединены между собой и являются вторым выводом первой диагонали моста, а величина дополнительных резисторов определяется произведением разности отношения расстояния от оси головки ключа до второй пары тензорезисторов, к расстоянию от оси головки ключа до первой пары тензорезисторов минус единица, на номинальное значение величины резистивности тензорезисторов.A torque wrench containing a rod with an elastic section mounted on the last strain gauges, a key head located on the ends of the rod, a housing with a control and measuring device and a handle with a battery element, strain gauges are included in the bridge circuit, the first diagonal of the strain gauge bridge is connected to the input of the measuring and measuring device and the second diagonal - to the battery, characterized in that, in order to increase the accuracy of torque control, the key is equipped with two additional cuts by the stors, the strain gages are installed in pairs and each of the strain gages in a pair is installed on opposite surfaces of the elastic section and perceive deformation of a different sign, the first outputs of the first pair of strain gages are connected to each other and are the first output of the first diagonal of the bridge, their second conclusions are outputs of the second diagonal of the bridge and, respectively, through additional resistors are connected to the first terminals of the second pair of strain gages, while strain gages connected through additional resistors are located They are located on one surface of the elastic section of the torque wrench and perceive the deformation of the same sign, the second terminals of the second pair of strain gages are interconnected and are the second output of the first diagonal of the bridge, and the value of the additional resistors is determined by the product of the difference in the ratio of the distance from the axis of the key head to the second pair of strain gages and the distance from the axis of the key head to the first pair of strain gages minus one, by the nominal value of the resistance value of the strain gages.
RU2005101718/02A 2005-01-25 2005-01-25 Dynamometric wrench RU2284260C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2005101718/02A RU2284260C1 (en) 2005-01-25 2005-01-25 Dynamometric wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2005101718/02A RU2284260C1 (en) 2005-01-25 2005-01-25 Dynamometric wrench

Publications (2)

Publication Number Publication Date
RU2005101718A true RU2005101718A (en) 2006-07-10
RU2284260C1 RU2284260C1 (en) 2006-09-27

Family

ID=36830241

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2005101718/02A RU2284260C1 (en) 2005-01-25 2005-01-25 Dynamometric wrench

Country Status (1)

Country Link
RU (1) RU2284260C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2519363C1 (en) * 2013-05-07 2014-06-10 Закрытое акционерное общество "ИНСТРУМ-РЭНД" Torque spanner
RU2620207C1 (en) * 2016-03-09 2017-05-23 Закрытое акционерное общество "ИНСТРУМ-РЭНД" Torque wrench

Also Published As

Publication number Publication date
RU2284260C1 (en) 2006-09-27

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20090126