CN201532240U - Belt scale of variable-frequency speed-measuring device - Google Patents
Belt scale of variable-frequency speed-measuring device Download PDFInfo
- Publication number
- CN201532240U CN201532240U CN2009201804391U CN200920180439U CN201532240U CN 201532240 U CN201532240 U CN 201532240U CN 2009201804391 U CN2009201804391 U CN 2009201804391U CN 200920180439 U CN200920180439 U CN 200920180439U CN 201532240 U CN201532240 U CN 201532240U
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- CN
- China
- Prior art keywords
- belt
- frequency
- frequency converter
- speed
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a belt scale of a variable-frequency speed-measuring device, comprising a hopper (5), a small proportioning belt (4) positioned below the hopper (5), a frequency converter (1) which is electrically connected with a driving motor (6) and carries out variable-frequency speed regulation on the driving motor (6) and a belt scale meter (3). The belt scale is characterized by comprising a voltage/frequency converter (2); one output end of the frequency converter (1) is electrically connected with the input end of the voltage/frequency converter (2); and the extending end of the voltage/frequency converter (2) is electrically connected with the belt scale meter (3), thus leading the frequency passing the current to directly display the rotating speed of the small proportioning belt (4) from the belt scale meter (3). The belt scale of the variable-frequency speed-measuring device has accurate speed measurement and the speed measurement is not influenced by external environment.
Description
Technical field
The utility model relates to a kind of belt that is provided with speed measuring device and claims, exactly is that a kind of belt that tests the speed by frequency conversion claims.
Background technology
Belt claims to be widely used on the commercial production material being weighed.Belt often claim in transmission material process needs determine feeding quantity in the unit interval how much, with this feeding quantity in explained hereafter is controlled.The speed measuring device that belt commonly used claims in the production mainly contains two kinds of modes, and a kind of is " contact ", and speed sensors is installed, and directly tests the speed by sensor; Another kind is " contactless ", promptly Hall element is installed or reducer gear tests the speed, and the common drawback of two kinds of speed measuring devices is: because installing component all at the scene, and on-the-spot environment is more abominable, artificial many with unartificial factor, the part that tests the speed often suffers damage, and beats as gear; The electromagnetic induction device is loosening, will cause test the speed inaccurate, thereby influence proportioning accuracy, if field management is not in place, feed proportioning system is possibly so can't normally move.
The utility model content
The purpose of this utility model solves the existing belt inaccurate problem that claims to test the speed exactly, provides a kind of belt that has the frequency conversion speed measuring device to claim.
The technical solution adopted in the utility model is: frequency conversion speed measuring device belt claims, it comprises hopper, be positioned at the batching belt lace of hopper below, be electrically connected frequency converter and belt that drive motor is carried out frequency control with drive motor claims instrument, it is characterized in that it also comprises electric voltage/frequency converter, an output terminal of frequency converter is electrically connected with the input end of electric voltage/frequency converter, the external part of electric voltage/frequency converter claims instrument to be electrically connected with belt, makes frequency by electric current claim instrument directly to show to prepare burden the rotating speed of belt lace from belt.
Adopt technique scheme, during use, because the rotating speed of drive motor and the frequency of electric current are in direct ratio, when frequency converter output voltage passes through electric voltage/frequency converter, can record the frequency of belt drives electric moter voltage, because the frequency and the belt drives motor speed of motor are in direct ratio, therefore can show rotating speed of motor by instrument, also just record the rotating speed of batching belt lace.
In sum, the utility model beneficial effect is: because speed measuring device of the present utility model does not directly contact with the batching belt lace, can place speed measuring device of the present utility model environment preferably in the pulpit like this, therefore external environment influence is little, test the speed by the electric voltage frequency conversion simultaneously, speed measuring device is not fragile, so the utility model tests the speed accurately.
Description of drawings
Fig. 1 is the utility model connection diagram.
Among the figure, 1, frequency converter, 2, electric voltage/frequency converter, 3, belt claims instrument, 4, the batching belt lace, 5, hopper, 6, drive motor.
Embodiment
The utility model frequency conversion speed measuring device belt claims, it comprises hopper 5, be positioned at the batching belt lace 4 of hopper 5 belows, be electrically connected frequency converter 1 and belt that drive motor 6 is carried out frequency control with drive motor 6 claims instrument 3, it also comprises electric voltage/frequency converter 2, an output terminal of frequency converter 1 is electrically connected with the input end of electric voltage/frequency converter 2, the external part of electric voltage/frequency converter 2 claims instrument 3 to be electrically connected with belt, and feasible frequency by electric current claims instrument 3 directly to show the rotating speeds of batching belt laces 4 from belt.
Claims (1)
1. frequency conversion speed measuring device belt claims, it comprises hopper [5], be positioned at the batching belt lace [4] of hopper [5] below, be electrically connected frequency converter [1] and belt that drive motor [6] is carried out frequency control with drive motor [6] claims instrument [3], it is characterized in that it also comprises electric voltage/frequency converter [2], an output terminal of frequency converter [1] is electrically connected with the input end of electric voltage/frequency converter [2], the external part of electric voltage/frequency converter [2] claims instrument [3] to be electrically connected with belt, and feasible frequency by electric current claims instrument [3] directly to show the rotating speed of batching belt lace [4] from belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201804391U CN201532240U (en) | 2009-11-12 | 2009-11-12 | Belt scale of variable-frequency speed-measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201804391U CN201532240U (en) | 2009-11-12 | 2009-11-12 | Belt scale of variable-frequency speed-measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532240U true CN201532240U (en) | 2010-07-21 |
Family
ID=42527643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201804391U Expired - Fee Related CN201532240U (en) | 2009-11-12 | 2009-11-12 | Belt scale of variable-frequency speed-measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532240U (en) |
-
2009
- 2009-11-12 CN CN2009201804391U patent/CN201532240U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20131112 |