CN201825543U - Variable-frequency weighing device - Google Patents
Variable-frequency weighing device Download PDFInfo
- Publication number
- CN201825543U CN201825543U CN2010205529659U CN201020552965U CN201825543U CN 201825543 U CN201825543 U CN 201825543U CN 2010205529659 U CN2010205529659 U CN 2010205529659U CN 201020552965 U CN201020552965 U CN 201020552965U CN 201825543 U CN201825543 U CN 201825543U
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- frequency converter
- frequency
- conveyor screw
- sensor
- controller
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Abstract
The utility model discloses a variable-frequency weighing device, which consists of an electric motor, a material storage hopper, a spiral conveyer, a weighing hopper and a sensor, wherein the electric motor is connected with a frequency converter, the rotating speed of the electric motor is controlled by the frequency converter, and a controller is connected with the sensor and the frequency converter. The variable-frequency weighing device has the characteristics that the fall can be reduced and can maintain constant, and the material proportioning is accurate.
Description
Technical field
The utility model belongs to the vehicle for construction technical field, especially relates to a kind of frequency conversion meausring apparatus.
Background technology
In the concrete batching process, powders such as cement are generally carried by conveyor screw, and by the sensor acquisition signal, when the sensor signal of control system collection reached setting value, conveyor screw quit work, and finished the proportioning process of powders such as cement.The control of this meausring apparatus is simple, but because the conveyor screw rotating speed is very fast, and material reaches setting value rear screw conveyer to be stopped suddenly, and the drop of material is big, can cause that batching is inaccurate, error is big, influences quality of concrete.
Summary of the invention
The purpose of this utility model is to improve the deficiency of prior art and a kind of drop that reduces is provided, and it is constant that drop keeps, the frequency conversion meausring apparatus accurately of preparing burden.
The purpose of this utility model is to realize like this, a kind of frequency conversion meausring apparatus is made up of electrical motor, storage bin hopper, conveyor screw, scale hooper and sensor, is characterized in that electrical motor is connected with frequency converter, the rotating speed of inverter control motor, controller is connected with sensor, frequency converter.
In order further to realize the purpose of this utility model, can be pneumatic valve to be installed at the discharging opening place of conveyor screw, pneumatic valve is controlled by controller.
Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model electrical motor is connected with frequency converter, the rotating speed of inverter control motor, controller and sensor, frequency converter connects, by the sensor acquisition signal, and with the weighing signal feedback of gathering to controller, when signal reaches default deceleration value, controller control frequency converter, make the electrical motor rev down, conveyor screw begins slow convey materials, realizes batching slowly, when signal reaches weighting set value, electrical motor quits work, and reaches the little purpose of drop of material; Discharging opening place at conveyor screw is equipped with pneumatic valve, and pneumatic valve is controlled by controller, and when conveyor screw quit work, pneumatic valve 4 can cut out simultaneously like this, makes drop keep constant, thereby has guaranteed the accuracy of batching.
Description of drawings
Below in conjunction with width of cloth figure and embodiment the utility model is described in further details.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is an another kind of structural representation of the present utility model.
The specific embodiment
Embodiment 1, a kind of frequency conversion meausring apparatus, with reference to Fig. 1, be that electrical motor 1 is connected with conveyor screw 3 and drives its rotation, storage bin hopper 2 is installed on the conveyor screw 3 on the inlet point, scale hooper 5 is installed in the discharging opening below of conveyor screw 3, sensor 6 is installed on the scale hooper 5, and electrical motor 1 is connected with frequency converter 8, the rotating speed at frequency converter 8 control motors, controller 7 is connected with sensor 6, frequency converter 8, and this has constituted a kind of structure of the present utility model.
When using the utility model batching, actuating motor 1 is opened pneumatic valve 4 simultaneously, and material enters in the conveyor screw 3 from storage bin hopper 2, motor drives conveyor screw 3 rotates, material enters scale hooper 5 from discharging opening, at this moment under the effect of spiral, sensor 6 beginning acquired signal, and with the weighing signal feedback of gathering to controller 7, when signal reached default deceleration value, controller 7 control frequency converters 8 sent restriction signal, make electrical motor 1 rev down, the slow convey materials of conveyor screw 3 beginnings is realized batching slowly, when signal reaches setting value, electrical motor 1 quits work, close pneumatic valve 4 simultaneously, owing to adopted frequency conversion control technique, the drop of material is less, and when conveyor screw 3 quits work, pneumatic valve 4 cuts out simultaneously, makes drop keep constant, thereby has guaranteed the accuracy of batching.
Claims (2)
1. frequency conversion meausring apparatus, form by electrical motor (1), storage bin hopper (2), conveyor screw (3), scale hooper (5) and sensor (6), it is characterized in that electrical motor (1) is connected with frequency converter (8), the rotating speed at frequency converter (8) control motor (1), controller (7) is connected with sensor (6), frequency converter (8).
2. a kind of frequency conversion meausring apparatus according to claim 1 is characterized in that at the discharging opening place of conveyor screw (3) pneumatic valve (4) being installed, and pneumatic valve (4) is controlled by controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205529659U CN201825543U (en) | 2010-09-28 | 2010-09-28 | Variable-frequency weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205529659U CN201825543U (en) | 2010-09-28 | 2010-09-28 | Variable-frequency weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201825543U true CN201825543U (en) | 2011-05-11 |
Family
ID=43964094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205529659U Expired - Fee Related CN201825543U (en) | 2010-09-28 | 2010-09-28 | Variable-frequency weighing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201825543U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374461A (en) * | 2014-12-08 | 2015-02-25 | 国乐忠 | Static solid material metering weigher |
| CN105413849A (en) * | 2015-12-25 | 2016-03-23 | 安吉中瑞膨润土化工有限公司 | Grinding device used for bentonite smashing processing |
-
2010
- 2010-09-28 CN CN2010205529659U patent/CN201825543U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374461A (en) * | 2014-12-08 | 2015-02-25 | 国乐忠 | Static solid material metering weigher |
| CN105413849A (en) * | 2015-12-25 | 2016-03-23 | 安吉中瑞膨润土化工有限公司 | Grinding device used for bentonite smashing processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |