CN2330984Y

CN2330984Y - Dynamic electronic hanging balance

Info

Publication number: CN2330984Y
Application number: CN 98235951
Authority: CN
Inventors: 徐平均
Original assignee: ZHENGZHOU HENGKE INDUSTRIAL Co Ltd
Current assignee: ZHENGZHOU HENGKE INDUSTRIAL Co Ltd
Priority date: 1998-06-17
Filing date: 1998-06-17
Publication date: 1999-07-28
Anticipated expiration: 2008-06-17

Abstract

The utility model relates to a dynamic electronic hanging balance, which can weigh an object on the dynamic state and comprises a weighing instrument which is composed of a data processing system. The utility model is characterized in that a lifting ring 1 is arranged on the upper part of a weighing sensor 4 via a shaft; the lower part of the weighing sensor 4 is provided with a hook 6; a mass block 3 is fixed on a small range weighing sensor 2, and an accelerometer is formed by the two parts; the barycenter of the mass block 3 is on the connecting line between the force bearing points of the lifting ring 1 and the hook 6. The utility model has the advantages that the influence to the weighing result caused by inertia force generated when the weight is moved is compensated by the accelerometer; the weight can be weighed by the dynamic electronic hanging balance in motion state; the time of measuring is shortened; the work efficiency is enhanced.

Description

Dynamic Electronic Crane Scale

The utility model relates to a kind of suspension type electronic crane scale, the particularly a kind of Dynamic Electronic Crane Scale that can weigh under dynamic situation.It can be widely used in industries such as controlling gold, chemical industry, harbour, railway, warehouse.

General electronic crane scale can only goods sling stable after, weighing near under the static state.When the weight up-down vibration or when swinging, this steelyard is Weighing exactly.

The purpose of this utility model is a kind of Dynamic Electronic Crane Scale of developing at above problem, it is that the LOAD CELLS by the general precision of little range is installed in the shell of steelyard, with a quality be the accelerometer that half mass of its maximum weighing is formed, come the motion of weight is compensated, make steelyard under dynamically, carry out Weighing.

The utility model is achieved in that Dynamic Electronic Crane Scale comprises the weighing instrument that data handling system constitutes, suspension ring 1 are contained in the top of LOAD CELLS 4 by axle, in the bottom of LOAD CELLS 4 suspension hook 6 is housed, wherein, be fixed with mass 3 on the range load cell 2 in a small amount, range load cell 2 and mass 3 constitute accelerometer in a small amount, and the center of gravity of mass 3 is on the line of suspension ring 1 and suspension hook 6 stress points.

The utility model can be achieved in that also range load cell 2 is to adopt parallel beam sensor in a small amount; LOAD CELLS 4 is to adopt resistance strain weighing transducer.

Good effect of the present utility model is:

1, this product is the inertial force that produces when coming the compensating weight motion with accelerometer, to the influence of weighing results, Dynamic Electronic Crane Scale can be weighed under motion state, has shortened the needed time in metering process, has improved the efficient of gage work.

2, this product usable range is wide, and having solved some occasion weights can't stablize, and the out of use difficult problem of static electronic crane scale.

Description of drawings.

Fig. 1 is the structural front view that the scale body is newly moulded in this practicality.

Fig. 2 is the side view of the utility model Fig. 1.

Fig. 3 is the circuit block diagram of the utility model scale body portion.

Fig. 4 is the circuit block diagram of the utility model weight display part.

Fig. 5 is the circuit theory diagrams of the utility model scale body portion.

Fig. 6 is the circuit theory diagrams of the utility model weight display part.

Wherein:

1, suspension ring 2, a small amount of range load cell 3, mass 4, LOAD CELLS

5, scale body case 6, suspension hook 7, analog-to-digital conversion module 8, analog-to-digital conversion module

9, microprocessor 10, transmitter 11, emitting antenna 12, receiving antenna

13, receiver 14, serial line interface 15, keyboard 16, microprocessor

17, display 18, printer

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, 2.The scale structure of Dynamic Electronic Crane Scale has following characteristics, the weighing instrument that Dynamic Electronic Crane Scale comprises the scale body portion, the data handling system of the display part of weighing constitutes, the center of gravity of LOAD CELLS 4 and mass 3 is on the line of the stress point of suspension ring 1 and suspension hook 6, accelerometer is made of a small amount of range load cell 2 and mass 3, little range sensors 2 should be selected the strong parallel beam type LOAD CELLS of anti-bias load ability for use, and mass 3 should be in effective load scope of a small amount of range load cell 2.When weighing, the suspension ring 1 of Dynamic Electronic Crane Scale hang on the suspension hook of crane, and weight hangs on the suspension hook 6 of Dynamic Electronic Crane Scale, and the gravity of weight and inertial force act on the LOAD CELLS 4.The inertial force that the scale body of Dynamic Electronic Crane Scale produces on mass 3 along the degree of adding of axis direction in the course of work, act on a small amount of range load cell 2, the output of range load cell 2 and the output of LOAD CELLS 4 in a small amount, after the data handling system processing, can obtain the weight of weighed object.

Shown in Fig. 3,4,5,6.The output of LOAD CELLS 4 is through the conversion of analog-to-digital conversion module 7, the output of a small amount of range load cell 2 in the accelerometer, go in the microprocessor 9 through analog-to-digital conversion module 8 conversion is laggard, microprocessor 9 is through after making up, and convert serial data to and give transmitter 10, radio signal is through emitting antenna 11, receiving antenna 12 is passed to receiver 13, the signal of receiver 13 outputs, be input in the microprocessor 16 through serial line interface 14, microprocessor 16 is by the program of the formula draw that is come out by Derivation of Mathematical Model, calculate the actual weight of object, show by display 17, also available printer 18 prints, and the operator can finish various metrological operations by keyboard 15.

Shown in Fig. 1,2,3,4,5.LOAD CELLS 4 of the present utility model is to adopt resistance strain weighing transducer, analog-to-digital conversion module 7, the 8th, adopt the AD7710 analog-to-digital conversion module of AD company, a small amount of range load cell 2 in the accelerometer is the parallel beam sensors that adopt maximum weighing 1kg, the quality of the mass 3 in the accelerometer is 500g, microprocessor 9 is the AT89C2051 type microprocessors that adopt ATMELL company, transmitter 10, receiver 13, emitting antenna 11, receiving antenna 12 is the auxiliary products that adopt the ORS electronic crane scale, microprocessor 16 is the DS80C320 microprocessors that adopt DALLAS company, display 17 is to adopt LCD to show the metering result, printer 18 is the MODEL-15011 that adopt EPSON company, and keyboard 15 is to adopt membrane keyboard.

Claims

1, a kind of Dynamic Electronic Crane Scale, comprise the weighing instrument that data handling system constitutes, suspension ring (1) are contained in the top of LOAD CELLS (4) by axle, in the bottom of LOAD CELLS (4) suspension hook (6) is housed, it is characterized in that: be fixed with mass (3) on the range load cell (2) in a small amount, range load cell 2 and mass 3 constitute accelerometer in a small amount, and the center of gravity of mass (3) is on the line of suspension ring (1) and suspension hook (6) stress point.

2, Dynamic Electronic Crane Scale according to claim 1 is characterized in that: range load cell (2) is to adopt parallel beam sensor in a small amount.

3, Dynamic Electronic Crane Scale according to claim 1 is characterized in that: LOAD CELLS (4) is to adopt resistance strain weighing transducer.