RU75240U1 - TESTING MACHINE - Google Patents

Abstract

The utility model relates to the field of studying the strength properties of solid materials by applying mechanical forces to them, more specifically, for compressing and bending tests of large-sized objects. The purpose of the claimed utility model is to expand the functionality of the machine. This goal is achieved by the fact that in a testing machine intended for testing for compression and bending of large-sized objects, including a loading device consisting of two columns, a base, a crosshead, upper and lower plates, a cylinder pair; pump installation, control and measurement system, hydraulic communication, a beam is fixed on the upper plate allowing bending tests, and the lower plate is equipped with an additional plate with restrictive rollers, while a pressure sensor with a throttle integrated into it is inserted into the working cavity of the cylinder pair which includes stabilization of the readings of the measured loads, and for measuring displacements, a sensor is used, the body of which is fixed on the base, and the moving part is attached to the moving part of the cylinder pair.

Description

The utility model relates to the field of studying the strength properties of solid materials by applying mechanical forces to them, more specifically, for compressing and bending tests of large-sized objects.

Known machines of the IPE series (design documentation of OJSC SKBIM, Khb2.767.288, 2007) / 1 /, designed for static compression tests of structures, structural elements and concrete samples.

The design series of IPE machines allows testing of parts and products provided for by a number of standards for these products and parts and, therefore, the clear space between the columns of machines and between the working plates is limited by the above standards.

Closest to the proposed is the machine MS-2000 (design documentation SKBIM, Khb2.767.262, 1985) / 2 /. The machine consists of: a loading device, including a crosshead, a base, two columns, an upper and lower plate, a cylinder pair, a pumping unit, and hydrocommunications. This machine uses a lever system for measuring force, which is obsolete.

The purpose of the claimed utility model is to expand the functionality of the machine.

This goal is achieved by the fact that in a test machine designed to test the compression and bending of large-sized objects, including a loading device consisting of two columns, a base, a crosshead, an upper and lower plate, a cylinder

couples; pump installation, control and measurement system, hydraulic communication, a beam is fixed on the upper plate allowing bending tests, and the lower plate is equipped with an additional plate with restrictive rollers, while a pressure sensor with a throttle integrated into it is inserted into the working cavity of the cylinder pair which includes stabilization of the readings of the measured loads, and for measuring displacements, a sensor is used, the body of which is fixed on the base, and the moving part is attached to the moving part of the cylinder pair.

The proposed utility model is presented in Figs. 1, 2, and 3.

The machine consists of columns 1, base 2, crosshead 3, upper 4 and lower 5 plates, cylinder pair 6, pump installation, control and measurement system, hydraulic communications (not shown in the drawing), beam 7, additional plate 8 with restrictive rollers 9 , pressure sensor 10 with integrated throttle 11, displacement sensor 12.

The work of the testing machine is as follows. After the installation of the object on the introduced additional plate 8, located on the lower plate 5, the working fluid from the pump installation (not shown) is supplied to the cavity of the cylinder pair 6. Using the control system (not shown), the required load is applied to the object, the actual value of which is measured by a pressure sensor 10 and is adjusted with the task. A compression test is in progress.

To measure the deformation of the object and the displacement of the additional plate 8 with restrictive rollers 9 used a displacement sensor 12.

Similarly, bending tests are carried out with the direct participation of the beam 7, fixed to the upper plate of the loading device.

The inventive testing machine is made original, for a specific test object, differs in its sharply increased dimensions of the space both in the light between the columns, and in height between the working plates, and allows you to test many large-sized samples and products.

Used sources:

1. IPE type machines (design documentation of SKBIM OJSC Khb2.767.288, 2007).

2. Machine MS-2000 (development of SKBIM Khb2.767.262, 1985).

Claims (1)

Testing machine, designed to test the compression and bending of large-sized objects, including a loading device consisting of two columns, a base, a crosshead, upper and lower plates, a cylinder pair; pump installation, control and measurement system, hydraulic communication, characterized in that a beam is mounted on the upper plate, allowing bending tests, and the lower plate is equipped with an additional plate with restrictive rollers, while a pressure sensor with a built-in sensor is inserted into the working cavity of the cylinder pair throttle, whose task is to stabilize the readings of the measured loads, and for measuring displacements, a sensor is used, the body of which is fixed on the base, and the movable part - to the moving part of the cylinder bottom pair.