SU903749A1

SU903749A1 - Device for testing materials for wear and contact dynamic fatigue

Info

Publication number: SU903749A1
Application number: SU802925824A
Authority: SU
Inventors: Леонид Васильевич Красниченко; Виктор Анатольевич Шумский; Владимир Васильевич Рубанов; Сергей Дмитриевич Колотиенко; Евгений Николаевич Соловьев; Юрий Александрович Петров
Original assignee: Ростовский-На-Дону Институт Сельскохозяйственного Машиностроения
Priority date: 1980-05-16
Filing date: 1980-05-16
Publication date: 1982-02-07

Description

(54) УСТРОЙСТВО ДЛЯ ИСПЫТАНИЯ МАТЕРИАЛОВ НА ИЗНОС И ДИНАМИЧЕСКУЮ КОНТАКТНУЮ УСТАЛОСТЬ(54) DEVICE FOR TESTING MATERIALS FOR WEAR AND DYNAMIC CONTACT FATIGUE

Изобретение относитс к исследованию материалов на износ и динамическую контактную усталость и может быть использовано при испытании материалов , работающих в услови х динамических нагрузок.The invention relates to the study of materials for wear and dynamic contact fatigue and can be used in the testing of materials operating under conditions of dynamic loads.

Известно устройство дл испытани материалов на износ, содержащее ударник-держатель испытываемого образца, кулачковый механизм дл сообщени ему возвратно-поступательного движени , стол дл размещени абразива под ударник и механизм согласовани движени ударника-держател с механизмом подачи абразива llj.A device for testing wear materials is known, comprising a drummer-holder of a test sample, a cam mechanism for giving it a reciprocating motion, a table for placing an abrasive under the drummer, and a mechanism for matching the movement of the drummer-holder with an abrasive feed mechanism llj.

Наиболее близким по технической сути и достигаемому эффекту к изобретению вл етс устройство дл испытани материалов на износ и динамическую контактную усталость, содержащее Атанину, держатели образца и контробразца., согласующий узел, механизм нагружени и приводы поступательного движени образцов L2J.The closest in technical essence and the achieved effect to the invention is a device for testing materials for wear and dynamic contact fatigue, containing Atanin, sample and counter sample holders, matching unit, loading mechanism and translational motion drives of samples L2J.

Т1едостатком известных устройств вл етс низка эффективность испытани материалов на износ и динамическую контактную усталость, что обусловлено невозможностью проведени испытаний при ударе с одновременным скольжением образцов.The T1 disadvantage of the known devices is the low efficiency of testing materials for wear and dynamic contact fatigue, which is due to the impossibility of conducting tests at impact with the simultaneous sliding of samples.

Цель изобретени - повышение эффективности испытани .The purpose of the invention is to increase the effectiveness of the test.

Поставленна цель достигаетс тем, что устройство снабжено закрепленными на держателе образца упором и зубчатой рейкой, взаимодействующей с приводом образца, а привод образца снабжен электромагнитной муфтой, взаимодействующей с упором и св занной через согласукиций узел с приводом контробразца.The goal is achieved in that the device is equipped with an anvil fixed on the sample holder and a toothed rack interacting with the sample drive, and the sample drive is equipped with an electromagnetic clutch that interacts with the anvil and is connected through a matching node to the counterpiece actuator.

На чертеже представлено предлагаемое устройство.The drawing shows the proposed device.

Claims

The device comprises a frame I, holders 2 and 3, respectively, of sample 4 and counterpiece 5, matching unit 6, loading mechanism 7. 39, the drives 8 and 9 of the translational movement of the holders 2 and 3. The device is equipped with a stop 10 and a toothed rack 1J. The actuator 8 is equipped with an electromagnetic clutch I2. The actuator 8 includes a gearbox 13, a gear wheel 14. The actuator 9 includes an electromagnetic coupling 15, a screw gear from screw 16 and a nut 1 7. The control of the matching unit 6 is carried out through the limit switch 18. The device works as follows. Drive B through gearbox 13, clutch 12, wheel 14 and rail 1 moves up holder 2 of sample 4. When a certain height is reached, stop 10 through matching node 6 disconnects clutch 12. Holder 2 under the action of loading mechanism 7 hits the counterpiece 5. Matching node 6 sets the holding time of the clutch 12 and after hitting it turns it on, which leads to a re-raising of the holder 2. The contrasing 5 moves from the actuator 9 through the clutch 15, the wines 16 and the nut 17, as well as through the matching unit 6, which controls clutch 15. Height ema holder 2 is adjusted position upvra 10 thereon. The positive effect is due to the increased efficiency of testing materials for wear and dynamic contact fatigue. Claims A device for testing materials for wear and dynamic contact Hjno fatigue comprising a frame, sample and counter sample holders, a matching unit, a loading mechanism, and specimen translational drives, characterized in that it is tested on the holder to increase efficiency. The device is equipped with an electromagnetic clutch, which interacts with the support and is connected through a matching node with at Odom kontrobraztsa. Sources of information taken into account during the examination 1. USSR author's certificate No. 209114, cl. G 01 N 3/56, J968.

2. USSR author's certificate number 24Yu74, cl. G 01 N 3/56, 1969 (prototype).