CN201436587U - Granulator hollow main shaft rotating speed measuring apparatus - Google Patents
Granulator hollow main shaft rotating speed measuring apparatus Download PDFInfo
- Publication number
- CN201436587U CN201436587U CN2009200756846U CN200920075684U CN201436587U CN 201436587 U CN201436587 U CN 201436587U CN 2009200756846 U CN2009200756846 U CN 2009200756846U CN 200920075684 U CN200920075684 U CN 200920075684U CN 201436587 U CN201436587 U CN 201436587U
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- granulator
- rotating speed
- circuit
- output terminal
- speed measuring
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Abstract
The utility model relates to a granulator hollow main shaft rotating speed measuring apparatus. The granulator comprises a big belt wheel connected with the hollow main shaft. The utility model is characterized in: the rotating speed measuring apparatus comprises a photoelectric sensor, a speed measuring circuit, a display circuit and an alarm circuit; the photoelectric sensor is disposed corresponding to the hole on the big belt wheel; the input terminal of the speed measuring circuit is in electric connection with the output terminal of the photoelectric sensor; the output terminal of the speed measuring circuit is in electric connection with the display circuit and the alarm circuit respectively, while is in electric connection with a normally closed contact relay in the power supply loop of the granulator; the output terminal of the display circuit is in electric connection with a display; and the output terminal of the alarm circuit is in electric connection with an alarm. Besides displaying the current rotating speed on the display, when the rotating speed is lower than the set value, the apparatus of the utility model can stop the machine automatically and alarm to prompt the operator to pay attention and maintain in time. The apparatus of the utility mode achieves the advantages of simple structure, reliable use and convenient maintenance.
Description
Technical field
The utility model relates to a kind of online granulator hollow spindle rotating speed speed measuring device that tests the speed for granulator hollow spindle rotating speed.
Background technology
At present, knownly can cause belt slip when excessive or belt does not have tensioning when the load of bel-drivenn granulator, make speed of mainshaft stall, belt burns.But the belt surrounding space is comparatively airtight, makes operating personnel can't in time find this problem of belt slip and takes measures.
Summary of the invention
The utility model is in order to overcome the problems referred to above that prior art exists; and a kind of online granulator hollow spindle rotating speed speed measuring device that tests the speed for the granulator speed of mainshaft that provides; this device can be when belt slip auto stop and send warning; operating personnel are taken measures timely, fix a breakdown.
The utility model is that the technical scheme that the above technical matters of solution is adopted is: granulator hollow spindle rotating speed speed measuring device, described granulator comprise the big belt wheel that is connected with hollow spindle; Be characterized in that described rotating speed speed measuring device comprises a photoelectric sensor, a tachometer circuit, a display circuit and a warning circuit; The corresponding setting in hole on described photoelectric sensor and the big belt wheel; The input end of described tachometer circuit is electrically connected with the output terminal of photoelectric sensor, and the output terminal of this tachometer circuit is electrically connected with display circuit and warning circuit respectively, and is electrically connected with a normally closed contact relay that is serially connected in the granulator electric power loop; The output terminal of described display circuit is electrically connected with display, and the output terminal of described warning circuit is electrically connected with alarm.
Above-mentioned granulator hollow spindle rotating speed speed measuring device, wherein, described tachometer circuit comprises a counting totalizer, a multiplier, a comparer; The input end of described counting totalizer is electrically connected with the output terminal of photoelectric sensor, and its output terminal is electrically connected with the input end of multiplier; The output terminal of described multiplier is electrically connected with the input end of described display circuit and described comparer respectively; The output terminal of described comparer is electrically connected with the input end of described warning circuit, and the output terminal of this comparer also is electrically connected with a normally closed contact relay that is serially connected in the granulator electric power loop.
Above-mentioned granulator hollow spindle rotating speed speed measuring device wherein, comprises that also one is used for fixing the support of photoelectric sensor, and this support is fixed on the granulator casing.
Above-mentioned granulator hollow spindle rotating speed speed measuring device, wherein, described display and alarm are arranged on the control panel of granulator.
Above-mentioned granulator hollow spindle rotating speed speed measuring device, wherein, described alarm is arranged on the frame of granulator.
Above-mentioned granulator hollow spindle rotating speed speed measuring device, wherein, described display comprises LCD or charactron display.
Above-mentioned granulator hollow spindle rotating speed speed measuring device, wherein, described alarm comprises hummer or stroboscopic signal lamp.
Because the utility model has adopted above technical scheme: utilizing big belt wheel and hollow spindle to connect its rotating speed is the same principle, detect the hole count generation pulse signal of big belt wheel by photoelectric sensor after, after changing the speed of calculating by tachometer circuit, show by display again.This data presented is the rotating speed of real-time hollow spindle.Auto stop and send alerting signal when the rotating speed that records is lower than the minimum speed of setting reminds operating personnel to take measures timely, avoids producing fault.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic diagram of tachometer circuit of the present utility model.
Fig. 3 is the fundamental diagram of tachometer circuit of the present utility model.
Embodiment
See also accompanying drawing 1.The utility model granulator hollow spindle rotating speed speed measuring device, described granulator comprises the big belt wheel 102 that is connected with hollow spindle 101, described big belt wheel 102 is provided with hole 103.Described rotating speed speed measuring device comprises a photoelectric sensor 1, a tachometer circuit 2, a display circuit 3 and a warning circuit 4; Described photoelectric sensor 1 is fixed on the granulator casing by a support 11, with the hole 103 corresponding settings on the described big belt wheel.The input end of described tachometer circuit 2 is electrically connected with the output terminal of photoelectric sensor, and the output terminal of this tachometer circuit is electrically connected with display circuit 3 and warning circuit 4 respectively, and is electrically connected with a normally closed contact relay 5 that is serially connected in the granulator electric power loop; The output terminal of described display circuit 3 is electrically connected with display 31, and the output terminal of described warning circuit 4 is electrically connected with alarm 41.The tachometer circuit 2 of described rotating speed speed measuring device, display 31 and alarm 41 are arranged on the control panel 104 of granulator, and perhaps described alarm is arranged on the frame of granulator.Described display comprises LCD or charactron display.Described alarm comprises hummer or stroboscopic signal lamp.
See also Fig. 2.In the utility model granulator hollow spindle rotating speed speed measuring device, described tachometer circuit 2 comprises a counting totalizer 21, a multiplier 22, a comparer 23; The input end of described counting totalizer 21 is electrically connected with the output terminal of photoelectric sensor 1, and its output terminal is electrically connected with the input end of multiplier 22; The output terminal of described multiplier 22 is electrically connected with the input end of described display circuit 3.Described and output terminal multiplier 22 also is electrically connected with the input end of described comparer 23; The output terminal of described comparer 23 is electrically connected with the input end of described warning circuit 4, and the output terminal of this comparer 23 also is electrically connected with a normally closed contact relay 5 that is serially connected in the granulator electric power loop.
See also Fig. 3.The principle of work of the utility model granulator hollow spindle rotating speed speed measuring device is: photoelectric sensor arrives the counting totalizer according to the rotating speed output pulse signal of big belt wheel; after the counting accumulator count, multiply each other in multiplier with a scale-up factor of setting again; obtain current actual speed, on display, show by display circuit.This actual rotating speed that records and be transferred to comparer simultaneously; compare with the rotating speed of setting; when being lower than the minimum speed of setting, the rotating speed that records to send an alerting signal to warning circuit; this alerting signal triggers the normally closed contact relay that is serially connected in the granulator electric power loop simultaneously; normally closed contact is often opened; thereby cut off the electricity supply automatically, shut down, in time fix a breakdown by operating personnel.
But the rotating speed of the current hollow spindle of the utility model Real-Time Monitoring; except display shows current rotating speed; autostop and send warning by warning device when belt creep, rotating speed are lower than the minimum speed of setting reminds operating personnel in time to take measures, and fixes a breakdown. Has advantage simple in structure, that use is reliable, the handled easily personnel safeguard.
Claims (7)
1. granulator hollow spindle rotating speed speed measuring device, described granulator comprises the big belt wheel that is connected with hollow spindle; It is characterized in that described rotating speed speed measuring device comprises a photoelectric sensor, a tachometer circuit, a display circuit and a warning circuit;
The corresponding setting in hole on described photoelectric sensor and the big belt wheel;
The input end of described tachometer circuit is electrically connected with the output terminal of photoelectric sensor, and the output terminal of this tachometer circuit is electrically connected with display circuit and warning circuit respectively, and is electrically connected with a normally closed contact relay that is serially connected in the granulator electric power loop; The output terminal of described display circuit is electrically connected with display, and the output terminal of described warning circuit is electrically connected with alarm.
2. granulator hollow spindle rotating speed speed measuring device according to claim 1 is characterized in that, described tachometer circuit comprises a counting totalizer, a multiplier, a comparer; The input end of described counting totalizer is electrically connected with the output terminal of photoelectric sensor, and its output terminal is electrically connected with the input end of multiplier; The output terminal of described multiplier is electrically connected with the input end of described display circuit and described comparer respectively; The output terminal of described comparer is electrically connected with the input end of described warning circuit, and the output terminal of this comparer also is electrically connected with a normally closed contact relay that is serially connected in the granulator electric power loop.
3. granulator hollow spindle rotating speed speed measuring device according to claim 1 is characterized in that, comprises that also one is used for fixing the support of photoelectric sensor, and this support is fixed on the granulator casing.
4. granulator hollow spindle rotating speed speed measuring device according to claim 1 is characterized in that described display is arranged on the control panel of granulator.
5. according to claim 1 or 4 described granulator hollow spindle rotating speed speed measuring devices, it is characterized in that described display comprises LCD or charactron display.
6. granulator hollow spindle rotating speed speed measuring device according to claim 1 is characterized in that described alarm is arranged on the control panel of granulator, perhaps is arranged on the frame of granulator.
7. according to claim 1 or 6 described granulator hollow spindle rotating speed speed measuring devices, it is characterized in that described alarm comprises hummer or stroboscopic signal lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200756846U CN201436587U (en) | 2009-07-31 | 2009-07-31 | Granulator hollow main shaft rotating speed measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200756846U CN201436587U (en) | 2009-07-31 | 2009-07-31 | Granulator hollow main shaft rotating speed measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436587U true CN201436587U (en) | 2010-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200756846U Expired - Fee Related CN201436587U (en) | 2009-07-31 | 2009-07-31 | Granulator hollow main shaft rotating speed measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436587U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175883A (en) * | 2011-01-25 | 2011-09-07 | 深圳市元征软件开发有限公司 | Method for monitoring rotation speed of spindle of tire balancer in real time |
| CN103244652A (en) * | 2013-05-27 | 2013-08-14 | 昆山艾博利橡塑胶有限公司 | Novel belt pulley |
| CN104181323B (en) * | 2013-05-24 | 2017-02-01 | 深圳市海洋王照明工程有限公司 | Hand-cranked power generator speed measuring tooling |
-
2009
- 2009-07-31 CN CN2009200756846U patent/CN201436587U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175883A (en) * | 2011-01-25 | 2011-09-07 | 深圳市元征软件开发有限公司 | Method for monitoring rotation speed of spindle of tire balancer in real time |
| CN102175883B (en) * | 2011-01-25 | 2012-09-05 | 深圳市元征软件开发有限公司 | Method for monitoring rotation speed of spindle of tire balancer in real time |
| CN104181323B (en) * | 2013-05-24 | 2017-02-01 | 深圳市海洋王照明工程有限公司 | Hand-cranked power generator speed measuring tooling |
| CN103244652A (en) * | 2013-05-27 | 2013-08-14 | 昆山艾博利橡塑胶有限公司 | Novel belt pulley |
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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: 20100407 Termination date: 20120731 |