SU109566A1 - Sample Testing Machine for Heat Treated Metal Tape for Fatigue Strength - Google Patents

Description

The subject of the invention is a machine for testing alternating bending simultaneously of two samples of a metal strip and its heat treatment.

Known test machines of the same purpose, equipped with a crankshaft-I1 mechanism, actuated by an electric motor and kinematically connected with a pair of test specimens, are secured; 1 in a gripper. These drivers do not provide for the registration of the number of bends of the specimens during the test and for fixing the moment of their destruction.

This disadvantage is eliminated in describing my car by the fact that it is equipped with a counting device, made in the form of a scoop knob, connected with rollers from the upper lead of the leash and equipped with restrictive stops d.shchash.yuk. coupled with the gear mechanism of the counter. With the goal of automatically turning off the counter at the time of sample destruction, the machine is equipped with a deactivating device, made in the form of a pressure spring, on the back side of the leash, tilted by a spring at the destruction of area and removing her finger from the hook.

The drawing shows a kinematic diagram of the machine.

The drive motor / via pulley 2 transmits movement to gearbox o, from which movement through gear lever 4 transfers gear to sector 5, gear () and driver 7, which deflects to the right and in the car to 90 °. The leash is fastened with the roller B on it and moves the skirt to the slider 9. which, in turn, moves the dog (dog) 10. Depending on the extreme position of the horn, the short is triggered: d.shnna zasche.ka, turning on one tooth cis1) counterblock //. In the frame of the dial counter, the number of alternating bends of the test specimen is recorded. Sample 12 tapes are inserted between

clamping jaws fixed at the predetermined clamping radius 13 by the handle 14, after the handle 15, through the lever 16 .1 Push out the gear half coupling 17. At the time of the destruction of the sweep, the leash 7, fitted on the back side with a clamping spring, leans forward, as a result roller 8 moves away from slider 9, and the counter // automatically stops.

11р Е д deliver a note

. Machine d.; 1, and testing of samples of heat-treated metal tape for fatigue strength with alternating bending, equipped with a crank mechanism, irized by an electric motor and kinematically associated with a pair of test arms mounted on the grippers of the leashes, so that registering the number of sample bends during the test, the machine is equipped with a counting device made in the form of a sliding slider connected with rollers to the top of the leash and fitted with a stop GOVERNMENTAL stops for latch speil proxy with counter gear mechanism.

2. The machine according to claim 1, characterized in that, in order to automatically turn off the counter at the moment of destruction of the sample under test, it is equipped with a deactivating device made in the form of a pressure spring on the back side of the leash, tilted by the spring during the destruction of the sample and the output roller zatseilepi with a slider.