SU566142A1

SU566142A1 - Weighing apparatus

Info

Publication number: SU566142A1
Application number: SU7502126434A
Authority: SU
Inventors: Валерий Зельманович Зайцев
Original assignee: Zajtsev Valerij Z
Priority date: 1975-04-15
Filing date: 1975-04-15
Publication date: 1977-07-25

Description

(54) ВЕСОВОЕ УСТРОЙСТВО(54) WEIGHT DEVICE

CTOpoHbi от центра т жести грузод1риемного устройства , OTHcceifflbje от него на приблизительно равные рассто ни , вдоль ибщей оси, вл ющейс также осью силоизмерител 3; дополнительную опору 4, удаленную на значительное рассто ние от оси основ-, ных опор. Кажда основна опора состоит из втулки (иди стержн в случае внеишего контакта с катками) износоустойчивыми вставками 6, жестко соеднненной с опорным основанием 7, и четырех радиально установленных катков 8, смонтированных на другом основании 9.CTOpoHbi from the center of the load plate of the receiving device, OTHcceifflbje from it at approximately equal distances, along the working axis, which is also the axis of force-measuring device 3; additional support 4, located at a considerable distance from the axis of the main supports. Each main support consists of a sleeve (go to the rod in case of out-of-contact with the rollers) wear-resistant inserts 6, rigidly connected to the support base 7, and four radially mounted rollers 8 mounted on another base 9.

В зависимости от конструктивного исполнени , датчик 3 может быть смонтирован на верхней (датчик раст жени на фиг, 1) или нижней (датчик сжати на фиг, 3) опоре.Depending on the design, the sensor 3 may be mounted on an upper (tensile sensor in FIG. 1) or lower (compression sensor in FIG. 3) support.

При установке устройства в стационарных услови х с ограниченной динамикой кажда основна опора может быть выполнена в виде системы габких раст жек 10, образутощих соединение с центром на общей оси опор.When installing the device in stationary conditions with limited dynamics, each main support can be made in the form of a system of gabcny extensions 10 forming a connection with the center on the common axis of the supports.

Сущность конструкции не мен етс при установке на оси опор одного, двух или нескольких датчиков,The essence of the structure does not change when one, two or several sensors are installed on the axis of the supports.

Устройство работает следуюидам образом.The device works as follows.

Бункер висит (или стоит) на силоизмерителе, который измер ет его вес, а опоры ограничивают перемещение устройства в направлени х, не совпадающих с общей осью основных опор и силоизмерителем . Грузоприемное устройство находитс под воздействием сил Руст (приложенной R центре т жести грузоприе шо1о устройства) и Ррр (прилохсенной в центре т жести груза).The bunker hangs (or stands) on the load cell, which measures its weight, and the supports restrict the movement of the device in directions that do not coincide with the common axis of the main supports and the load cell. The load receptor is under the influence of Rust forces (attached R center of the weight of the load on the device) and Ррр (applied in the center of the weight of the load).

Действие зтих сил создает осевую силу, воспринимаемую силоизмерктелем силы, перпендикул рные к оси, воспринимаемые основными опорами 2, .моменты сил в вертикальных плоскост х, воспринимаемые теш: же опорами, а также крут щий момент относительно оси основных опор, воспринимаемый дополнительной и основными опорами. The action of these forces creates an axial force perceived by the force-measuring force forces perpendicular to the axis, perceived by the main supports 2, the moments of forces in the vertical planes perceived by the tesh: the same supports, as well as the torque relative to the axis of the main supports, perceived by the additional and main supports .

Благодар размещению центра т жести устройства между опорами 2, которые удалены от него на значительное и приблизительно одинаковое рассто ние , и друтим изложенным ранее особенност мDue to the placement of the center of gravity of the device between the supports 2, which are removed from it for a considerable and approximately equal distance, and with the previously described features

конструкции, силы, перпендикул рные к ос, вызывают в опорах приблизительно одинаковые реаквди а моменты сил - одинаковые и минимальные по величне реакции (последние равны моментам сил, деленным на рассто ние между опорами, которые велики ) и моменты трени в основных а допотштельных опорах, что и обеспечивает требуемую точность измерени осевой нагрузки.The constructions, the forces perpendicular to the wasps, cause in the supports approximately identical reaction moments and the moments of forces - the same and minimal in magnitude reactions (the latter are equal to the moments of forces divided by the distance between the supports, which are large) and the moments of friction in the main and additional supports, which ensures the required accuracy of the axial load measurement.

Claims

1. A weighing device containing a bunker with supports limiting its movement relative to the vertical geometric axis, a load cell consisting of one or several sensors, and a control unit characterized in that in order to increase the weight determination in the presence of dynamic loads on the bunker It is installed between two central supports fixed in the direction of the vertical geometric axis offenses, with the center of gravity of the bunker located between the supports.

2. Device pop. 1, differs by the fact that the load cell is located on the common axis of the supports.

3. The device according to claim 1, characterized in that the force meter and one of the supports are connected into a single structural unit,

4. The device according to claim 1, characterized in that the supports are made in the form of coaxial rods or sleeves, provided with wear-resistant inserts with radially located rollers.

5. The device according to p; 1, characterized in that it is provided with one additional support limiting the rotation of the bunker around the common axis of the supports and as far as possible from this axis in the limits of the dimensions of the device.,

Sources of information taken into account in the examination:

1. Author's certificate No. 294994, cl. G 01 G 3/04, 12.11.71.

2. Patent No. 3137358, cl. 177-81,16,06.64.

3. Certificate of author number 340903, cl. GOIG 05/17/06/76.

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