CN203479385U

CN203479385U - A hopper scale automatic calibration apparatus

Info

Publication number: CN203479385U
Application number: CN201320486263.9U
Authority: CN
Inventors: 房奕亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-11
Filing date: 2013-08-11
Publication date: 2014-03-12
Anticipated expiration: 2023-08-11

Abstract

The utility model discloses a hopper scale automatic calibration apparatus comprising a hopper, weighing sensors, and a framework. The weighing sensors are arranged between the hopper and the framework. A horizontally-disposed first shelf is arranged rightly over the hopper. A horizontally-disposed second shelf is arranged rightly over the first shelf. The first shelf is connected with the second shelf through springs. A plurality of pressure sensors are disposed between the first shelf and the second shelf. The top surface of the second shelf is connected with a horizontally-disposed supporting plate through a plurality of vertically-disposed jacks. The top surface of the supporting plate is connected with a lifting device fixed on a support. The support is fixed on a trolley. The hopper scale automatic calibration apparatus may accurately and fast calibrate hopper scales.

Description

Automatic calibration device for hopper scale

Technical field

The utility model relates to automatic calibration device for hopper scale.

Background technology

Continuous lifting along with metallurgical automation degree, hopper electronic scale (hereinafter to be referred as bunker scale) automatic, quick, metering to bulk materials is used widely, for guaranteeing the weighing accuracy of bunker scale, regularly by standard weights, to bunker scale, calibration is very important.In general, the calibration of bunker scale is that the counterweight of standard quality is loaded on the sensor of bunker scale by bunker scale scale body, and the demonstration weight of the sensor output signal that makes bunker scale on weighting display instrument is identical with loaded standard weights.

When bunker scale is carried out to verification, for the larger weighing device of measurement range, during verification, need a large amount of counterweights, moving into take out of needs a large amount of manpower and materials, and duration for verification, efficiency are low, need of work repetitive operation, in operating process, security is not high yet.

Utility model content

The purpose of this utility model is to provide a kind of automatic calibration device for hopper scale, and it can carry out verification accurately and quickly to bunker scale.

For achieving the above object, the technical solution of the utility model is a kind of automatic calibration device for hopper scale of design, comprises hopper, LOAD CELLS and framework, and LOAD CELLS is between hopper and framework; Directly over hopper, be provided with the first shelf of horizontal, directly over the first shelf, be provided with the second shelf of horizontal, the first shelf is connected by spring with the second shelf, between the first shelf and the second shelf, be provided with some pressure transducers, the second shelf end face connects the back up pad of horizontal by some perpendicular lifting jack of putting, support plate top surface connects jacking gear, and jacking gear is fixed on support, and support is fixed on dolly.

Preferably, described lifting jack is screw jack.

Preferably, described lifting jack is upside down on the second shelf end face.

Advantage of the present utility model and beneficial effect are: a kind of automatic calibration device for hopper scale is provided, and it can carry out verification accurately and quickly to bunker scale.

During work, jacking gear makes the first shelf drop to contact hopper upper surface, and jack pair the second shelf applies downward pressure, and the pressure transducer arranging between the first shelf and the second shelf can detect this pressure.

Adopt the pressure of lifting jack to replace the weight of standard test weight to carry out verification, not only convenient but also quick, operating personnel can make lifting jack pressurization or release according to field condition, calibration operation are more simplified also time saving and energy saving.

Also there is good application prospect the aspects such as automatic calibration device for hopper scale of the present utility model claims at platform, the daily inspection of truck scale and track scale, fault distinguishing.

Accompanying drawing explanation

Fig. 1 is schematic diagram of the present utility model.

Embodiment

Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.

The concrete technical scheme of implementing of the utility model is:

As shown in Figure 1, a kind of automatic calibration device for hopper scale, comprises hopper 1, LOAD CELLS 2 and framework 3, and LOAD CELLS 2 is between hopper 1 and framework 3; Directly over hopper 1, be provided with the first shelf 4 of horizontal, directly over the first shelf 4, be provided with the second shelf 5 of horizontal, the first shelf 4 is connected by spring 6 with the second shelf 5, the

first shelf

4 and 5 of the second shelves are provided with some pressure transducers 7, the second shelf 5 end faces connect the back up pad 9 of horizontal by some perpendicular lifting jack of putting 8, back up pad 9 end faces connect jacking gear 10, and jacking gear 10 is fixed on support 11, and support 11 is fixed on dolly 12.

Described lifting jack 8 is screw jack.

Described lifting jack 8 is upside down on the second shelf 5 end faces.

During work, jacking gear 10 makes the first shelf 4 drop to contact hopper 1 upper surface, and 8 pairs of the second shelves 5 of lifting jack apply downward pressure, and the pressure transducer 7 of the

first shelf

4 and 5 settings of the second shelf can detect this pressure.

The pressure of employing lifting jack 8 replaces the weight of standard test weight to carry out verification, not only convenient but also quick, and operating personnel can load or unloading lifting jack 8 according to field condition, calibration operation are more simplified also time saving and energy saving.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. automatic calibration device for hopper scale, is characterized in that, comprises hopper, LOAD CELLS and framework, and LOAD CELLS is between hopper and framework; Directly over hopper, be provided with the first shelf of horizontal, directly over the first shelf, be provided with the second shelf of horizontal, the first shelf is connected by spring with the second shelf, between the first shelf and the second shelf, be provided with some pressure transducers, the second shelf end face connects the back up pad of horizontal by some perpendicular lifting jack of putting, support plate top surface connects jacking gear, and jacking gear is fixed on support, and support is fixed on dolly.

2. automatic calibration device for hopper scale according to claim 1, is characterized in that, described lifting jack is screw jack.

3. automatic calibration device for hopper scale according to claim 2, is characterized in that, described lifting jack is upside down on the second shelf end face.