SU1280350A1

SU1280350A1 - Device for measuring torque

Info

Publication number: SU1280350A1
Application number: SU853898709A
Authority: SU
Inventors: Андрей Александрович Прохоров; Виктор Алексеевич Кирпичев; Юрий Иванович Кольцун; Вадим Эдуардович Павловский
Original assignee: Куйбышевский Авиационный Институт Им.С.П.Королева; Институт Механики Ан Усср
Priority date: 1985-05-22
Filing date: 1985-05-22
Publication date: 1986-12-30

Abstract

Изобретение относитс к силоизмерительной технике и позвол ет повысить точность измерений в широком диапазоне нагрузок. В направл ю |.„У4| ггр срр,,,44.,,тр т%%%%шш щих 11, вьшолненных в корпусе 1, установлена обойма 6, перемещение которой с помощью руко тки 21 регул тора 19 положени вдоль оси упругого элемента 2 до совпадени метки 26 с заданным делением шкалы 20 указател положени выставл ют необходимый предел измерений. Жестка фиксаци упругого элемента обеспечиваетс зат жкой болтов 15-18, в процессе которой кольца 12 и 13 закручиваютс вокруг его оси до выборки люфтов между прорез ми 3 элемента 2 и внутренними шлицами колец 12 и 13. О величине измер емого крут щего моi мента суд т по деформации кручени упругого элемента 2, нагруженного присоединенным к захвату 5 объектом испытаний, определ емой по указателю 4 деформаций, 2 ил. J5 /J 2S / / 77The invention relates to force-measuring technique and allows to increase the accuracy of measurements in a wide range of loads. In the direction of | |. „Y4 | ggr cfp ,,, 44. ,, mp %%%% shsch 11, mounted in the housing 1, the holder 6 is set, the movement of which by means of the handle 21 of the regulator 19 position along the axis of the elastic element 2 until the mark 26 coincides with the specified by dividing the scale 20 of the position indicator, set the required measurement limit. A rigid fixation of the elastic element is provided by tightening the bolts 15-18, during which the rings 12 and 13 twist around its axis until the backlash is sampled between the slots 3 of the element 2 and the inner slots of the rings 12 and 13. The measured torque is measured on the torsion deformation of the elastic element 2 loaded with the test object attached to the gripper 5, determined by the pointer 4 deformations, 2 slugs. J5 / J 2S / / 77

Description

Изобретение относитс к силоизме- рительной технике и предназначено дл определени в широком диапазоне крут щих моментов испытательных машин .The invention relates to a force-measuring technique and is intended to determine a test machine in a wide range of torques.

Целью изобретени вл етс повышение точности в широком диапазоне нагрузок.The aim of the invention is to improve the accuracy in a wide range of loads.

На фиг.1 показана конструкци уст ройства дл измерени крут щего момента; на фиг.2 - сечение А-А на фиг.1.Figure 1 shows the structure of a device for measuring torque; figure 2 - section aa in figure 1.

Устройство дл измерени крут щего момента содержит корпус 1, к которому одним торцом прикреплен упругий элемент 2 в виде беличьего колеса , выполненного из полого цилиндра со сквозными прорез ми 3, параллельными образующим цилиндра, указатель 4 деформации, соединенный с другим торцом упругого элемента 2, который снабжен захватом 5 дл присоединени объекта испытани , обойму 6, вьшол- ненную в виде четырех П-образньгх скоб 7-10, ц установленных в направл ющих 1I, выполненных в корпусе 1 параллельно оси упругого элемента 2, два кольца 12 и 13 с внутренними шлицами 14, введенными в зацепление с прорез ми 3 упругого элемента 2, со- осно которому кольца I2 и 13 установлены в обойме 6, элементы поворота колец 12 и 13, вьтолненные в биде 15-18, установленных в резь- бовые гнезда, выполненные в П-образ- ных скобах 7-10, регул тор 19 положени обоймы 6, и шкала 20 указател положени обоймы б, смонтированные на корпусе 1.The device for measuring the torque includes a housing 1 to which one end of an elastic element 2 in the form of a squirrel wheel, made of a hollow cylinder with through slots 3 parallel to the cylinder, is attached, a deformation indicator 4 connected to the other end of the elastic element 2, which provided with a gripper 5 for attaching the test object, a holder 6, formed in the form of four U-shaped brackets 7-10, q installed in the guides 1I, made in the housing 1 parallel to the axis of the elastic element 2, two rings 12 and 13 with With the vents 14, which are introduced into engagement with the slots 3 of the elastic element 2, with which the rings I2 and 13 are mounted in the holder 6, the pivoting elements of the rings 12 and 13, are made in the bidet 15-18 installed in the threaded sockets made in the U-shaped brackets 7-10, the regulator 19 of the holder 6, and the scale 20 of the indicator of the position of the holder b mounted on the housing 1.

При этом регул тор 19 положени обоймы 6 представл ет собой зубчато- винтовой механизм с ручным приводом он. содержит приходную руко тку 21, кинематически соединенную через зубчатый редуктор 22 с четырьм винтовыми валами 23, установленными в корпусе 1 и введенными в зацепление с резьбовыми каналами, выполненными вIn this case, the regulator 19 of the holder 6 is a gear-screw mechanism with a manual drive. contains an incoming handle 21, kinematically connected through a gear reducer 22 with four screw shafts 23 installed in the housing 1 and brought into engagement with the threaded channels made in

П-образных скобах 7-10.U-shaped brackets 7-10.

tt

На внешней цилиндрической поверхности колец 12 и 13 вьтолнены пазы 24, в которые введены концы болтов 15-18, размещенные в П-образных скобах 7-10 таким образом, что обеспечиваетс возможность закрутки колец 12 и 13 вокруг оси упругого элемента 2 во взаимно противоположных направлени х . Кроме того, с одной стоOn the outer cylindrical surface of the rings 12 and 13, grooves 24 are inserted into which the ends of the bolts 15-18 are inserted, placed in U-shaped brackets 7-10 in such a way that it is possible to twist the rings 12 and 13 around the axis of the elastic element 2 in mutually opposite directions x In addition, with one hundred

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5five

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5five

РОНЫ на наружной поверхности упругого элемента 2 выполнены несквозные канавки 25 с глубиной 3/4 толщины стенки исходного полого цилиндра, которые вл ютс продолжением сквозных прорезей 3, а высота внутренних щли- цов 14 на кольцах 12 и 13 не превышает 3/4 толщины стенки исходного полого цилиндра, из которого вьшол- нен упругий элемент 2.The RONES on the outer surface of the elastic element 2 are made of non-through grooves 25 with a depth of 3/4 of the wall thickness of the original hollow cylinder, which are a continuation of the through slots 3, and the height of the inner slits 14 on the rings 12 and 13 does not exceed 3/4 of the wall thickness of the original a hollow cylinder from which an elastic element 2 is formed.

Устройство дл измерени крут щего момента работает следующим образом .The device for measuring torque acts as follows.

Ослабл ют зат жку болтов 15-18, а затем вращением руко тки 21 регул тора 19 положени обоймы 6 перемещают ее вдоль оси упругого элемента 2 до совпадени метки 26, вьтолнен- ной на обойме 6, с заданным делением шкапы 20 указател положени обоймы 6, соответствующим заданному диапазону измер емых нагрузок.The bolts 15-18 are loosened, and then by turning the knob 21 of the adjuster 19, the holder 6 moves it along the axis of the elastic element 2 until the mark 26, executed on the holder 6, coincides, with a predetermined division of the holder position indicator 20, 6 corresponding to the specified range of measured loads.

Зат гивают болты 15-18 до упора. При этом кольца 12 и 13 закручиваютс вокруг оси упругого элемента 2 во взаимно противоположных направлени х до выборки люфтов между прорез ми 3 jmpyroro элемента 2 и внутренними шлицами 14 колец 12 и 13, чем достигаетс жестка фиксаци сечени упругого элемента 2, расположенного между кольцами 12 и 13 относительно корпуса.Bolts 15-18 are pressed to the stop. In this case, the rings 12 and 13 twist around the axis of the elastic element 2 in mutually opposite directions until the backlash is sampled between the slots 3 jmpyroro of the element 2 and the inner splines 14 of the rings 12 and 13, thus achieving a rigid fixation of the cross section of the elastic element 2 located between the rings 12 and 13 relative to the hull.

К захвату 5 присоедин ют объект испытани , который нагружает упругий эл.емент 2, испытывающий деформацию кручени ,и по показани м указател 4 деформации суд т о величине измер емого крут щего момента.The test object is attached to the gripper 5, which loads the elastic element 2, which is experiencing torsional deformation, and according to the indications of the deformation indicator 4 judges the magnitude of the measured torque.

Claims

The invention relates to load measuring equipment and is intended to determine test machines in a wide range of torques. The aim of the invention is to improve the accuracy in a wide range of loads. Figure 1 shows the structure of a device for measuring torque; figure 2 - section aa in figure 1. The device for measuring the torque includes a housing 1 to which one end of an elastic element 2 in the form of a squirrel wheel, made of a hollow cylinder with through slots 3 parallel to the cylinder, is attached, a deformation indicator 4 connected to the other end of the elastic element 2, which provided with a gripper 5 for attaching the test object, a holder 6, made in the form of four U-shaped brackets 7-10, q installed in the guides 1I, made in the housing 1 parallel to the axis of the elastic element 2, two rings 12 and 13 with internal With reamers 14, engaged with the slots 3 of the elastic element 2, coaxially with which the rings I2 and 13 are mounted in the cage 6, the elements of rotation of the rings 12 and 13, are made in the bidet 15-18, installed in the threaded sockets made in P -shaped staples 7-10, regulator 19 positioning casing 6, and scale 20 of position indicator cage b mounted on housing 1. In this case, regulator 19 positioning cage 6 is a manual-toothed screw drive mechanism. contains an incoming handle 21, kinematically connected through a gear reducer 22 to four screw shafts 23 mounted in the housing 1 and engaged with the threaded channels made in the U-shaped brackets 7-10. On the outer cylindrical surface of the rings 12 and 13, grooves 24 are inserted into which the ends of the bolts 15-18 are inserted, placed in U-shaped brackets 7-10 in such a way that it is possible to twist the rings 12 and 13 around the axis of the elastic element 2 in mutually opposite directions x In addition, on one side, on the outer surface of the elastic element 2, non-through grooves 25 are made with a depth of 3/4 of the wall thickness of the original hollow cylinder, which are a continuation of the through slots 3, and the height of the inner slits 14 on the rings 12 and 13 does not exceed 3/4 wall thickness of the original hollow cylinder, from which the elastic element is made

2. The device for measuring the torque moment works as follows. The bolts 15-18 are loosened, and then by turning the knob 21 of the regulator 19, the holder 6 moves it along the axis of the elastic element 2 until the mark 26 executed on the holder 6 coincides, with a given division of the holder position indicator 20 20 corresponding to the specified range of measured loads. Bolts 15-18 are pressed to the stop. In this case, the rings 12 and 13 twist around the axis of the elastic element 2 in mutually opposite directions until the backlash is sampled between the slots 3 jmpyroro of the element 2 and the inner splines 14 of the rings 12 and 13, thus achieving a rigid fixation of the cross section of the elastic element 2 located between the rings 12 and 13 relative to the hull. The test object is attached to the gripper 5, which loads the elastic element 2, which is experiencing torsional deformation, and according to the indications of the deformation indicator 4 judges the magnitude of the measured torque. Claims An apparatus for measuring torque, comprising a housing, a strain indicator and an elastic squirrel wheel, is a hollow cylinder with through-slots parallel to the cylinder forming part, one end of which is connected to the body. deformations and provided with a gripper for attaching the test object, characterized in that, in order to reduce the accuracy in a wide range of loads, a sleeve is inserted into it, which is installed in guides made in a parallel case axis of the cylinder, two

rings with internal splines that are engaged with the cylinder slots, coaxially with which the rings, rings rotation elements mounted in the holder, its position adjuster and the indicator scale of this position mounted on the housing are placed in the cage.

Aa 26 gb

eight

.2