SU872997A1 - Stand for article impact testing - Google Patents

Description

(54) STAND FOR TESTING PRODUCTS FOR SHOCK LOADS

one

The invention relates to a test technique, namely, test benches / for impact loads.

A stand for testing products for shock loads is known, comprising a platform, guides mounted on a platform, a movable element for securing a test product, mounted on a slide with movement capability, and a clamp to hold the movable element in the initial position f 1 I.

The disadvantage of this stand is that, due to the pain of the frictional forces, it leads to wear in the process of spraying between the moving element and direction, their wear occurs, which leads to a decrease in the reliability and durability of the stand.

The closest to the invention to the technical essence is a cut-off for testing products for shock loads, comprising a platform, a substructure for placing the test product, which is installed on the platform with the possibility of rotation around an axis parallel to the axis of rotation of the platform, by means of a centrifugal force, trigger mechanism with retainer to hold the movable element in the initial position 2 J.

Claims (1)

However, this stand does not allow the automatic loading of the product to a certain position on the movable element during the rotation of the platform, while according to the test conditions it is not allowed time for its acceleration. This is necessary, for example, in the case of testing products for the complex effect of high temperature and intense shock load, acting sequentially with a slight shift in time (seconds, fractions of a second). This reduces the accuracy of reproduction of test modes for complex testing of products. The purpose of the invention is to improve the accuracy of reproduction of test modes for complex testing of products that represent a rotating body with an ogival tip, due to automatic installation of the product. The goal is achieved by providing a movable element with a receiving sleeve containing a loading opening, the axis of which coincides with the axis of rotation of the platform. , a bed for fixing the test product and a cleavage surface for sending the test product l. -. The drawing schematically shows the proposed stand. . The stand contains a platform 1, a movable element 2 placed on the platform 1 with the possibility of rotation around an axis parallel to the axis of rotation of the platform 1, under the action of centrifugal force. The movable element 2 is made in the form of a tandem with a receiving sleeve 3 at the end. The receiving sleeve 3 contains a loading opening 4, the axis of which coincides with the axis of rotation of platform 1, a bed of 5 dp fixation of the test product Sleep drawing is not shown), which is a rotating body with a reviving tip, and a surface 6 of the clip for sending the test product in bed 5 A contact (not shown in the drawing) associated with the trigger mechanism (not shown) of the latch 7 is placed in the bed 5. The stand operates as follows Moving element 2 is installed and fixed on platform 1 before the test so that loading opening 4 of the sleeve 3 is on the axis of rotation of the platform 1. Platfor 1 mA to a predetermined acceleration speed. The test article is transported to the loading opening 4 of the sleeve 3, centered relative to it and dropped into the sleeve 3. Pad the test product slides over the bottom 6, unfolds and lies in the bed 5, When fully 74 the bed 5 the product is automatically centered and fixed in this position by centrifugal force . This closes the contact, including the trigger mechanism of the latch 7, holding the movable element 2 in the initial position. The movable element 2 moves relative to the platform 1 with acceleration and creates shock loading of the product. Thus, due to the automatic installation of the product, which is a rotational body with an ogival tip, the reproduction accuracy of the test modes is improved. Claims of the invention Stand for testing products for shock loads, comprising a platform5 a movable element for accommodating a test article that is mounted on a platform can be rotated around an axis parallel to the axis of rotation of the platform under the action of a centrifugal bar, lowering the mechanism with a clamp to hold the movable element in the initial position characterized in that, in order to increase the accuracy of reproduction of test modes in the complex testing of products, which are a body of rotation with a lively m tip, by automatically setting yzdegam, the movable member is provided with a receiving sleeve comprising a feed opening, which coincides with the axis of rotation of the platform axis fiksyrovasch1 test bed for the article and a sliding surface for the sending of the test article in a box. Sources of information taken into account in the examination of 1 AsTOpicKoe USSR certificate No. 429299, cl. G 01 M 7/00, 1972. 2 USSR Copyright Certificate № 5041ГЗ, cl. G 01 M 7 / OQ, 1973 {pr.rg toip).