CN202520594U - Fan running check device - Google Patents
Fan running check device Download PDFInfo
- Publication number
- CN202520594U CN202520594U CN 201220018646 CN201220018646U CN202520594U CN 202520594 U CN202520594 U CN 202520594U CN 201220018646 CN201220018646 CN 201220018646 CN 201220018646 U CN201220018646 U CN 201220018646U CN 202520594 U CN202520594 U CN 202520594U
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- CN
- China
- Prior art keywords
- fan
- blower fan
- belt pulley
- check device
- utility
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model relates to a fan running check device which comprises a fan, a motor, a fan belt pulley, a fan impeller and a triangular belt, wherein the fan belt pulley is provided with a checking stop dog, the lateral side of the checking stop dog is provided with an approach switch so as to be connected with a programmable logic controller (PLC) input point outside the fan, and the checking stop dog is semi-circular. The fan running check device has the advantages of being low in cost, simple in programming, and convenient to mount.
Description
Technical field:
The utility model relates to a kind of blower fan apparatus, especially relates to a kind of fan operation testing fixture.
Background technique:
On heating plant, circulating fan plays a part very important in the uniformity to furnace temperature, in case blower fan outlet fault; If can't detect, the uniformity of furnace temperature can not get ensureing, also can cause very serious consequence to the performance quality of the workpiece in the stove; More existing detecting methods detect and corresponding counting module as increasing encoder, like this; Cost price is high, programming trouble very.
Summary of the invention:
The utility model technical problem to be solved provides the simple fan operation testing fixture of the low programming of a kind of cost.
In order to solve the problems of the technologies described above; The utility model is realized through following technological scheme: this fan operation testing fixture; Comprise blower fan, motor, blower fan belt pulley, draught fan impeller and v belt; Said blower fan belt pulley is provided with the detection block, and detection block side is provided with near the switch PLC input point outside with being arranged on blower fan and is connected.
Detect for ease, further, said detection block semicircular in shape.
Compared with prior art, the usefulness of the utility model is: this fan operation testing fixture is with low cost, and programming is simple, and is easy for installation.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model structural representation.
Among the figure: 1, blower fan; 2, motor; 3, blower fan belt pulley; 4, draught fan impeller; 5, v belt; 6, detect block; 7, near switch; 8, PLC input point.
Embodiment:
Below in conjunction with accompanying drawing and embodiment the utility model is described in detail:
A kind of fan operation testing fixture shown in Figure 1; Comprise blower fan 1, motor 2, blower fan belt pulley 3, draught fan impeller 4 and v belt 5; Said blower fan belt pulley 3 is provided with semicircular detection block 6, and detection block 6 sides are provided with near the switch 7 PLC input point 8 outside with being arranged on blower fan and are connected.
Particularly, when motor 2 in when operation, also synchronous operation of draught fan impeller 4; Detect also synchronous operation of block 6, can feed back to signal of holding and closing of PLC near switch 7, through this signal of opening and closing; Coding in the program of PLC, under the normal condition, the signal of opening and closing can be gathered; When 5 fractures of the v belt of blower fan 1 or blower fan belt pulley 3 skid, will be in the state that opens or closes near the signal of switch 7, and then the program of writing a time-delay just can detect draught fan impeller 4 and whether moving always.
This fan operation testing fixture is with low cost, and programming is simple, and is easy for installation.
It is emphasized that: above only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Every technical spirit according to the utility model all still belongs in the scope of the utility model technological scheme any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. fan operation testing fixture; Comprise blower fan (1), motor (2), blower fan belt pulley (3), draught fan impeller (4) and v belt (5); It is characterized in that: said blower fan belt pulley (3) is provided with and detects block (6), and detection block (6) side is provided with near switch (7) the PLC input point (8) outside with being arranged on blower fan and is connected.
2. fan operation testing fixture according to claim 1 is characterized in that: said detection block (6) semicircular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220018646 CN202520594U (en) | 2012-01-16 | 2012-01-16 | Fan running check device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220018646 CN202520594U (en) | 2012-01-16 | 2012-01-16 | Fan running check device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520594U true CN202520594U (en) | 2012-11-07 |
Family
ID=47103546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220018646 Expired - Fee Related CN202520594U (en) | 2012-01-16 | 2012-01-16 | Fan running check device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705251A (en) * | 2012-01-16 | 2012-10-03 | 苏州工业园区姑苏科技有限公司 | Fan operation detecting device |
-
2012
- 2012-01-16 CN CN 201220018646 patent/CN202520594U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705251A (en) * | 2012-01-16 | 2012-10-03 | 苏州工业园区姑苏科技有限公司 | Fan operation detecting device |
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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: 20121107 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |