Weight change device in gas spring durability test mechanism

摘要

The present invention relates to a weight exchange device in the durability test mechanism of the gas spring (gas spring), the durability of the gas spring for testing the durability of the gas spring by installing the gas spring to perform the stretching movement by a predetermined value In the mechanism, the motor (10) for providing the driving force in the test mechanism, the sleeve (13, 14, 15), which is formed integrally with the motor shaft (11) of the motor (10) and oscillates, the upper support Limiter switches (50; 50a, 50b, 50c) installed in the (60) so that the motor 10 is driven when the sleeves (13, 14, 15) contact, integral with the sleeve (13, 14, 15) Arms 21, 22, 23, and through holes 37a, 38a, and 39 having a flange portion 21a, 22a, 23a and threaded portions 21b, 22b, 23b formed at the front end thereof; The arms 21, 22, 23 and the arms 21b, 22b, 23b penetrating through 37a, 38a, 39a and the nut 45 are screwed together with the arms 21, 22, 23. Limit switches (40; 40a, 40b, 40c) installed on the weights (37, 38, 39) and the support (27) to allow the motor (10) to stop driving when the weights (37, 38, 39) are in contact. And length adjusting members 24, 25 and 26 fixed to the arms 21, 22 and 23 so as to install the gas springs 34 on the projections formed on the lower portion thereof. By exchanging and installing the weight adaptively to the elastic force of), it is possible to increase the accuracy of the durability test of the gas spring and to reduce the load generated on the motor.