SU993014A1

SU993014A1 - Pneumatic device for measuring curvature

Info

Publication number: SU993014A1
Application number: SU813286751A
Authority: SU
Inventors: Элеонард Убайдуллаевич Дадамухамедов; Маркс Шулимович Дышель; Светослав Юрьевич Компанцев; Олег Никонович Чекин
Original assignee: Институт Механики Ан Усср
Priority date: 1981-05-15
Filing date: 1981-05-15
Publication date: 1983-01-30

Description

Изобретение относитс к измерительной технике и может быть использовано дл измерени кривизны, например, при исследовании деформации конструкций .The invention relates to a measurement technique and can be used to measure curvature, for example, in the study of structural deformation.

Известно пневматическое устройство дл измерени кривизны, содержащее корпус с пр молинейными направл юсдими , установленный на одной из них ползун, три опоры на объект измерени , две из которых скреплены с корпусом, а одна - с ползуном, и измерительное сопло, установленное с возможностью перемещени вдоль направл к цих и расположенное нормально опорной плоскости , и механизм дл согласовани перемещений св занных с ползуном опоры и сопла, выполненный в виде двух сильфонов , обеспечивающих перемещение опоры со скоростью, в два раза превышающей скорость перемещени сопла {.A pneumatic device for measuring curvature is known, comprising a housing with straight lines and displacements, mounted on one of them a slider, three supports on the object of measurement, two of which are fastened to the housing, and one with a slider, and a measuring nozzle mounted for movement along directed towards cix and located normally to the reference plane, and a mechanism for matching the movements associated with the slide of the support and the nozzle, made in the form of two bellows, providing movement of the support with a speed twice increasing the speed of movement of the nozzle {.

Однако перемещение св занных с ползуном опоры и сопла с.помощью сильфонов требует системы питани сжатым газом, что усложн ет конструкцию, устройства и, кроме того, ограничивает диапазон перемещений.However, the movement of the support and the nozzle associated with the slider. Using the bellows requires a compressed gas feed system, which complicates the design, the devices and, in addition, limits the range of movement.

Цель изобретени - упрощение конструкции и расширение диапазона перемещений .The purpose of the invention is to simplify the design and expand the range of motion.

Указанна цель достигаетс тем, что в пневматическом устройстве дл измерени кривизны, содержащем корпус с пр молинейными направл ющими, установленный на одной из них ползун,- три опоры на измерени , две из которых скреплены с корпусе, а одна с ползуном, и измерительное сопло, установленное с возможностью переме10 щени вдоль направл ющих и расположенное нормально опорной плоскости, и механизм дл согласовани перемещений св занных с ползуном опоры и сопла , механизм дл согласовани переме15 щений выполнен в виде сепаратора с шариками, плоской пружины, скрепленной .с ползуном и предназначенной дл поджати шариков к нему и направл ющим.This goal is achieved by the fact that in a pneumatic device for measuring curvature, comprising a housing with rectilinear guides, mounted on one of them a slider, there are three supports for measurements, two of which are fastened to the housing, and one with a slider, and a measuring nozzle, movably mounted along guides and positioned normally to the reference plane, and a mechanism for coordinating movements associated with a slide of a support and a nozzle, a mechanism for matching displacements made in the form of a ball separator MI, a flat spring, fastened with a slider and intended to press the balls to it and guides.

На фиг. 1 показана схема устройст20 ва, вид спереди; на фиг. 2 - то же, вид в плане; на фиг, 3 - сечение А-А на фиг. 1; на фиг. 4 - сечение Б-В на фиг. 2. FIG. 1 shows a diagram of the device, front view; in fig. 2 - the same plan view; FIG. 3 is a section A-A in FIG. one; in fig. 4 is a section B-B in FIG. 2

Kopnyq устройства выполнен в виде Kopnyq device is designed as

Claims

25 of the closed frame, consisting of straight guides 1 and 2, connecting bars 3 and 4, and supporting 5 bars. By . the guide bar 1 moves the slider b, carrying the movable spherical support 7. Between the slider b and the guide bar 2 there are balls 8. The spring 9 is attached to the slider 6, which presses the balls to the slide and to the guide bar 2. Wigs 8 located in the shaped separator, the torus 10, moving along the guiding strips 1 and 2. The separator has a threaded socket in which the measuring nozzle 11 is located. On the support bar 5 there are fixed ball bearings 12 and 13. The supports 7 and 12 form the base of the gauge : on the line connecting these supports, strictly in the middle is the nozzle 11; bearing 13 is auxiliary. Screw 14 retainer 15 and aperture 16 in the slider with: is used to fix the position of the slider after its displacement. In the slats. and 2 there are holes 17 serving; | l press the device to the surface of the structure under investigation. The device is assembled in such a way: then its measuring nozzle 11 is located in the middle between the base plates with: fercic supports 7 and 12, the device operates as follows. The device is mounted with supports 7, 12 and 13 on the measurement object (not shown) and is pressed against it by studs (not shown) inserted into the holes 17. If necessary to change the base of the device, release the screw 14 of the clamp 15, the slider carrying the mobile c; The ferric support 7 is moved by the required amount, after which the screw 14 is clamped again. When it moves, the slider b carries the balls 8 together with the separator 10 and the measuring c; oplu 11. The instantaneous speed of movement of the centers of the balls 8 is two times smaller than the speed of movement of the slider (), which is evident from the instantaneous speed triangle built on the diameter of the ball normal to the guide rail 1 and

2. Therefore, when: moving the slider to any distance to change the base, the measuring nozzle will always be automatically installed in the middle of the base. The implementation of a mechanism for coordinating the movements of the movable support and the nozzle in the form of a separator with balls moved by the slider without slippage of the balls relative to the slider and the supports allows to simplify the design of the device, as well as expand the measurement range, since the length of the slider and guide rails can be arbitrarily large. A pneumatic device for measuring curvature, comprising a housing with straight guides, a slider mounted on one of them, three supports on the object of measurement, two of which are attached to the housing, and one with a slider, and a measuring nozzle mounted for movement along guides and located normally supporting plane, and a mechanism for matching the movements associated with the slide of the support and the nozzle, characterized in that, in order to simplify the design and extend the measurement range, the mechanism for coordinating movements is made in the form of a separator with tsbrchiki, a flat spring, fastened with a slider and intended to press the balls to it and guides .., Sources of information taken into account during the examination 1. USSR author's certificate for number 3244460 / 28, C-01 B 13/02, 1980.

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