SU987405A1

SU987405A1 - Device for balance cyclic loading

Info

Publication number: SU987405A1
Application number: SU803004832A
Authority: SU
Inventors: Рудольф Робертович Стыркш; Владимир Вениаминович Ворошнин; Юрий Владимирович Бурень
Original assignee: Научно-Производственное Объединение "Прогресс" Министерства Местной Промышленности Латвсср
Priority date: 1980-11-12
Filing date: 1980-11-12
Publication date: 1983-01-07

Description

Изобретение относитс к весоизмерительной технике и касаетс стенда дл циклического нагружени весов.The invention relates to a weight measuring technique and relates to a stand for cyclic loading of weights.

Известно устройство дл поверки весов, содержащее силовую ферму, механизм нагружени , измеритель усили 1 .A device for checking weights is known, which contains a power farm, a loading mechanism, a force meter 1.

Недостатком этого устройства вл етс невысока его производительность.A disadvantage of this device is its low productivity.

Наиболее близким к,изобретению по своей технической сущности вл етс градуировочный стенд дл бытовых напольных весов, содержащий механизм нагружени весов 2.The closest to the invention in its technical essence is a calibration stand for household floor scales, containing the mechanism for loading the scales 2.

Недостатком известного устройства вл етс то, что оно имеет низкие функциональные возможности.A disadvantage of the known device is that it has low functionality.

Целью изобретени вл етс расширение функциональных возможностей за счет обеспечени одновременного нагружени весов в разных диапазонах.The aim of the invention is to enhance the functionality by providing simultaneous loading of the weights in different ranges.

Поставленна цель достигаетс тем, что в устройство введены барабан и узел передачи усили в виде самоустанавливающихс подпружиненных прижимов дл весов, через который барабан кинематически св зан с механизмом нагружени ,The goal is achieved by inserting a drum and a force transmission unit in the form of self-aligning spring-loaded weighing clamps, through which the drum is kinematically connected with the loading mechanism,

На фиг, 1 -изображено устройство, общий вид; на фиг, 2 - то же, видFig, 1 shows a device, a general view; fig 2 - the same view

сбоку; на фиг. 3 - разрез А-А на фиг. 2.from the side; in fig. 3 shows section A-A in FIG. 2

Устройство содержит станину 1, на которой смонтирован редуктор 2, св занный с механизмом нагружени , включающим кривошип 3, установленный в подшипниках 4 и получающий вращение от электродвигател (не показан). На выходном валу редуктора 2 закреплен гра10 дуированный барабан 5,один оборот которого соответствует одному обороту кривошипа 3, который шатуном 6 св зан с ва- ликом 7jзакрепленным на траверсе 8,имеющей возможность перемещатьс по скал15 кам 9,закрепленным на станине 1.Устройство также содержит узел передачи усили , включающий смонтированные в траверсе 8 стаканы 10, в которых размещены штоки 11, несущие прижимы 12. The device comprises a frame 1 on which a gearbox 2 is mounted associated with a loading mechanism, including a crank 3, mounted in bearings 4 and receiving rotation from an electric motor (not shown). On the output shaft of the gearbox 2, a graduated dunned drum 5 is fixed, one turn of which corresponds to one revolution of crank 3, which is connected by a connecting rod 6 to shaft 7j fixed on the yoke 8, which is able to move along the rollers 9 mounted on the frame 1. The device also contains a force transmission unit including cups 10 mounted in the traverse 8, in which the rods 11 are placed, bearing clamps 12.

20 Штоки 11 подпружинены пружинами 13, сжимаемыми винтами 14. Концы штоков 11, взаимодействунхцие с прижимами 12, выполнены сферическими дл обеспечени полного Контакта опорной поверх25 ности прижимов 12 с рабочей поверхностью нагружаемых весов 15, которые вл ютс измерител ми усили .20 The rods 11 are spring-loaded with springs 13, compressible screws 14. The ends of the rods 11, interacting with the clamps 12, are spherical to ensure full contact of the supporting surface of the clamps 12 with the working surface of the loaded weights 15, which are force gauges.

Claims

The device works as follows. The loaded weights 15 are mounted on the bed 1 under the clamps 12 at the extreme upper position of the crosshead 8 with the clamps 12. Then the electric motor is switched on, communicating through the gearbox 2, the crank 3, the connecting rod b, connected to the ralik 7, the reciprocating movement of the traverse 8. When This is indicated on the graduated drum 5 by the extreme lower position of the crosshead 8 with the clamps 12 and the drive of the device stops, the position of the crosshead 8 is fixed. This position of the crosshead 8 with the clamps 12 corresponds to the maximum load in the loading cycle of the balance 15 Then, compressing the springs 13 with screws 14 and through the rods 11 the clamps 12, affect the loading of the scales 15 and note the indications on their scales. Thus, in each working position of the stand, various forces can be applied to the loaded weights 15. Then the drive is turned on and the traverse 8 with the clamps 12 begins to perform a reciprocating motion, in its extreme lower position loading the scales 15 with a given load, and in the extreme upper position releasing the scales 15 from the load. At the same time, a gap is formed between the weights 15 and the clamps 12, which is sufficient to install and remove the loaded weights 15 from the stand 1. At the end of the specified loading cycle, the drive stops at the uppermost position of the crosshead 8 with the clamps 12, corresponding to the determined position of the graduated drum 5, which is a visual reference. The use of the proposed device for cyclic loading of scales will allow run-in of manufactured scales, as well as testing of scales for fatigue, reliability and durability. Claims. A device for cyclic loading of scales, containing a mechanism for loading the scales, characterized in that, in order to expand the functionality by providing simultaneous loading of scales in different ranges, a graduated drum and a force transmitting unit in the form of self-aligning spring-loaded clamps for weights are introduced into it, through which the drum is kinematically connected with the loading mechanism. Sources of information taken into account in the examination 1. The author's certificate of the USSR 517804, cl. G 01 G 23/02, 1975.

2. Authors certificate USSR 794385, cl. G 01 G 1/28, 1978 (prototype).

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