CN2147516Y

CN2147516Y - high-accuracy electronic scale

Info

Publication number: CN2147516Y
Application number: CN 92245196
Authority: CN
Inventors: 孙宏伟
Original assignee: STANDARD MEASURING INSTRUMENT EXPERIMENT INST JILIN PROV
Current assignee: STANDARD MEASURING INSTRUMENT EXPERIMENT INST JILIN PROV
Priority date: 1992-12-21
Filing date: 1992-12-21
Publication date: 1993-11-24
Anticipated expiration: 2002-12-21

Abstract

A high-accuracy electronic scale belongs to the measuring instrument, which is based on an electronic balance consisting of a sensor and a display instrument, and adopts a rectangular scale seat, wherein the sensor is fixed above the side of the scale seat, and a joint bearing device is hung at the lower end of the sensor; the scale base is provided with a linkage lever mechanism consisting of two first-level levers, a second-level lever and a third-level lever; two sides of each first-level lever are respectively hung with a flexible hanging bracket, and four hanging brackets support a platform plate; the knife at the front end of the three-level lever is positioned in the knife bearing at the lower end of the knuckle bearing device, and the cam shaft capable of supporting the front end of the three-level lever is arranged on the scale seat.

Description

High prcision electronic balance

The utility model belongs to gauging instrument weighing apparatus class.

Existing electronic balance partly is made up of Sensor section and Displaying Meter, and Sensor section is made up of magnetic cylinder, magnetic core, moving winding, lever, reed.Its weighing principle is to adopt magnetic balanced principle, changes gravity into electric signal and passes to instrument and partly carry out numeral demonstration weight.The advantage of this electronic balance is that accuracy is higher, and shortcoming is that the scope of weighing is less, generally is at 0-20Kg.

The purpose of this utility model is: provide a kind of accuracy high, the pin-point accuracy electronic scale that the scope of weighing is big.

Technical measures of the present utility model are: based on the electronic balance of being made up of sensor and Displaying Meter, adopt a rectangular title seat, the sensor of electronic balance is fixed on the top that claims seat one side, and the sensor bottom hangs with an oscillating bearing device; Claiming to be equipped with one by two one-level lever, a second lever, linkage lever mechanisms that three grades of levers are formed that arranged in the top on the seat; The both sides external of each one-level lever is hung an active suspension bracket respectively.The following transverse axis upper support of four suspension brackets a platform flat board; The end of three grades of levers is knives, during the cutter that knife is located in oscillating bearing device lower end holds; Being equipped with one on the title seat can be with the camshaft of the terminal jack-up of three grades of levers.

Accompanying drawing 1 is a structural representation of the present utility model.Fig. 2, Fig. 3 are respectively partial sectional views.

21 is the title seats that are rectangle among the figure, and the sensor 10 of electronic balance is arranged in the upper fixed that claims seat 21 1 sides; Hang with an oscillating bearing 11(standard component in the lower end of sensor 10).Claiming on the seat 21 a linkage lever mechanism to be housed.Two one-

level levers

4 and 8 are the tripod shape, and the both sides, outer end are respectively knives, during four cuttves that four knives are located in the support plate 2 that claims on the seat and 15 upper ends respectively hold; Each the one-

level lever

4 and 8 the outside are respectively knives, and the following transverse axis 17 of hanging 3, four active suspension brackets 3 of an active suspension bracket on each knife is respectively supporting a platform flat board 1 of placing weight by crotch 9; Upper beam downside at a framework 6 is hung by reed in one-

level lever

4 and 8 inner end.The sill of framework 6 upwards is fixed with a reed, and this reed upper end is fixed on the second lever 5 outside centers, and hang on the riser 20 that claims on the seat by reed second lever 5 outer ends; Second lever 5 can adopt triangle, and the both sides, outer end can adopt a reed to hang on two risers 20 respectively, and this structural stability can be better.Second lever 5 front ends upwards are fixed with reed, and reed upper end is fixed on the outside of grade lever 7, and the outer end of lever 7 is hung by reed and claimed that the front end of three grades of levers 7 is knives on the seat riser 18, during the cutter that knife is located in oscillating bearing device 11 lower ends holds.When place weight on platform flat board 1, leverage moves down the front end of three grades of levers 7, and to the sensor application of force, weight and weight illustrate through Displaying Meter 13 by oscillating bearing 10.When not weighing, the camshaft 12 on the rotation title Cuo 21 is with the front end jack-up of three grades of levers 7, and this claims to be in the protection resting state.In order to weigh accurately, will claim seat to transfer to horizontality, claiming the seat bottom surface that leg 14,16,19,22 is housed.This claims to utilize the pin-point accuracy of electronic balance and can widen the leverage that power is transmitted scope, the effect that reaches pin-point accuracy and weigh on a large scale.

Claims

1, a kind of pin-point accuracy electronic scale, the electronic balance of partly being made up of Sensor section and Displaying Meter is formed, and it is characterized in that:

A, a rectangular title seat is arranged, the sensor of electronic balance is fixed on the top that claims seat one side; The sensor lower end hangs with an oscillating bearing device;

B, one-level lever, a second lever, the linkage lever mechanism that three grades of levers are formed of being arranged in the top by two are housed on bearing;

The both sides external of c, each one-level lever is hung an active suspension bracket respectively, and the following transverse axis upper support of four suspension brackets a platform flat board;

The front end of d, three grades of levers is knives, during the cutter that knife is located in oscillating bearing device lower end holds;

E, claim to be equipped with one on the seat can be with the camshaft of three grades of lever front end jack-up.