CN2086894U

CN2086894U - Static metering belt scale mechanism

Info

Publication number: CN2086894U
Application number: CN 90225545
Authority: CN
Inventors: 石连文; 徐怀书; 任伟
Original assignee: 石连文
Priority date: 1990-12-08
Filing date: 1990-12-08
Publication date: 1991-10-16

Abstract

The utility model relates to a static metering belt scale mechanism which is a continuously weight metering device for material belt transmission, comprising a material dividing mechanism 1, scale bodies 2, 3 and the action mechanism of a discharging door 8 in the bottom part. The static metering belt scale mechanism can put the continuously conveyed material into two scale bodies orderly by the material dividing mechanism. The weighing in the static state can be carried out after the scale bodies and the material are stable. The material can be discharged after the measured data is collected. The two scale bodies can be circulated in this way, to weigh the material by turns, and the measured data can be accumulated by a computer. The utility model changes the dynamic metering mode of a traditional belt scale, using the static metering mode to replace the dynamic metering mode. Thus the metering precision can be increased by more than 0.1%. The static metering belt scale mechanism can not be influenced by various conditions, such as different humidity, uneven granularity, more material, less material, lack of material, and dynamic state in the transmission process, and is stable and reliable.

Description

Static metering belt scale mechanism

The utility model relates to a kind of Weight metering device, is specially adapted to the continuous weight metering that the bulk material belt is carried, as the weight metering in the belt course of conveying of wheat, breaking ores, cement powders etc.

Before this, the various belt conveyer scales that continuous weight metering adopted that people carry the bulk material belt are the dynamic measurement mode, promptly the material under dynamic is carried out weight metering, because material is in dynamically all the time, and the material of lacking, few material, how material, granularity inequality, the not equal many factor affecting of humidity are arranged again in course of conveying, make belt conveyer scale detection signal instability, affected by environment bigger, measuring accuracy is low, and adaptive faculty is poor, far can not satisfy the requirement of modernized industrial made with high precision.

The purpose of this utility model is intended to overcome problems of the prior art, dynamically reach the static weighing belt conveyer scale mechanism that many factors vary influence to obtain a kind of material that is not transferred, to improve measuring accuracy and adaptive faculty, satisfy the requirement that modernization industry is produced.

For achieving the above object, the utility model adopts the weighing mode of material dynamic measurement into static weighing that become, to reach the purpose that improves measuring accuracy and adaptive faculty.

Fig. 1 forms synoptic diagram for the utility model structure.

Fig. 2 is the utility model emptying door actuating mechanism synoptic diagram.

With reference to accompanying drawing 1,2, the utility model mainly is made up of the actuating mechanism of material diversion mechanism 1, scale body 2 and scale body 3 and

scale body

2,3 bottom emptying doors 8.Diversion mechanism 1 is " people " font structure, a feeding warehouse 4 is arranged at its top, two

tapping channels

5,6 are arranged at the bottom, and the dividing plate 7 that has an axle to rotate in the junction of two

tapping channels

5,6 and feeding warehouse 4 can be blocked tapping channel 5 and passage 6 respectively when dividing plate 7 turns to end positions a, b;

Scale body

2,3 is box structure, lays respectively at the below of tapping

channel

5,6, and the scale body is supported on the pressure transducer 10 by the hanger 9 of its outer wall, and the bottom of each scale body is the emptying door 8 that rotates around the end axle to be opened/closed; Its actuating mechanism comprises the lever that has weight 12 11 that is used to close emptying door 8, lever 11 is fixedly connected at the axle head and the emptying door 8 of emptying door 8, actuating mechanism also comprises the bar 13 around the intermediate shaft rotation that is used to lock and decontrol lever 11, the one end has trip 14, it can catch on lever 11 when emptying door 8 was closed, the other end is connected with spring 15 and electromagnet 16, is used to decontrol lever 11 and trip 14 is set back.

With one-chip computer, weight sensor, amplifier, analog to digital converter, device for digit-displaying and switching value output unit and the utility model combination, just can realize robotization of the present utility model.The utility model can place between head, tail or middle two belts of belt transportation system.

As shown in Figure 1, 2, when dividing plate 7 during at position a, the logical material 6 of discharging is plugged, the material that puts down by belt I by feeding warehouse 4 and tapping channel 5 to 1 charging of scale body, when the weight of scale body 1 equaled or exceeded certain setting value, computing machine just sent signal to the mechanism that rotates dividing plate 7, makes dividing plate 7 turn to position b rapidly, tapping channel 5 is blocked, and material just enters scale body 2 by passage 6.After scale body 1 and material wherein are stable within a certain period of time, just carry out accurate, stable weight data collection, after calculating, demarcating, put into calculator memory, simultaneously send the order of opening emptying door to scale body 1, electromagnet 16 actions, the trip 14 that drives bar 13 ends is thrown off lever 11, and emptying door 8 is opened blowing automatically under the material action of gravity.After material drained, emptying door 8 was closed under the effect of weight 12 automatically, rushed open trip 14 during lever 11 returns, and spring 15 makes trip 14 set back again and blocks lever 11, and scale body 1 is just waited for next supplied materials.After dividing plate 7 turned to position b, scale body 2 was then finished same weighing work, so moved in circles, in turn weighing.Weighing result for each scale adds up, to reach the purpose of continuous measurement.For preventing many material and the scale body volume problems of too of belt in carrying, single scale body efficient loading ability can be decided to be maximum delivery and single scale body in the band conveyor unit interval usually from stopping to be fed to the finish twice of the used time product of wait charging of blowing.

Compared with prior art, because the dynamic material that the utility model will be carried continuously becomes static material, with the static mode weighing, dynamic effects when not being subjected to mass transport, and the material that does not limit again each scale is a fixed value, and the detection measuring accuracy is improved greatly, can reach more than 0.1%. Material lacked in course of conveying material, few material, many material, granularity are irregular, the not equal various situations of humidity can both adapt to, reliable and stablize.

Claims

1, a kind of static weighing belt conveyer scale mechanism, it is characterized in that: it is mainly by material diversion mechanism 1, scale body 2 and scale body 3 and scale body 2, the actuating mechanism of 3 bottom emptying doors 8 is formed, diversion mechanism 1 is " people " font structure, a feeding warehouse 4 is arranged at its top, two tapping channels 5 are arranged at the bottom, 6, at two tapping channels 5,6 dividing plates 7 that have an axle to rotate with the junction of feeding warehouse 4, when turning to end positions, can respectively tapping channel 5 and passage 6 be blocked by dividing plate 7, scale body 2,3 is box structure, lay respectively at tapping channel 5,6 below, the scale body is supported on the pressure transducer 10 by the hanger 9 of its outer wall, the base plate of each scale body is the emptying door 8 that rotates around the end axle to be opened/closed, its actuating mechanism comprises to be used about closing the lever that has weight 12 11 of emptying door 8, lever 11 is fixedly connected at the axle head and the emptying door 8 of emptying door 8, actuating mechanism also comprises the bar 13 around the intermediate shaft rotation that is used to lock and decontrol lever 11, the one end has trip 14, it can catch on lever 11 when emptying door 8 was closed, the other end is connected with spring 15 and electromagnet 16, is used to decontrol lever 11 and trip 14 is set back.