CN208125756U - A kind of rotation-speed measuring device - Google Patents
A kind of rotation-speed measuring device Download PDFInfo
- Publication number
- CN208125756U CN208125756U CN201820656084.8U CN201820656084U CN208125756U CN 208125756 U CN208125756 U CN 208125756U CN 201820656084 U CN201820656084 U CN 201820656084U CN 208125756 U CN208125756 U CN 208125756U
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- switch
- circuit
- close
- rotation
- measuring device
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Abstract
The utility model discloses a kind of rotation-speed measuring devices, including fluted disc on the rotating shaft is arranged, plane where the fluted disc is provided with No. I close switch of detection rotation axis revolving speed, No. II close switch, described No. I is placed close to switch level, described No. II is placed close to switch is vertical, described No. I forms Acquisition Circuit close to switch close to switch, No. II, and the Acquisition Circuit is connected with the signal collection end of PLC system.The utility model forms Acquisition Circuit acquisition pulse signal close to switch close to switch, No. II by orthogonal No. I; pulse signal issues each revolving speed point output on-off model of unit and 4~20mA analog signals corresponding with generating unit speed after PLC system is handled; the utility model measurement is more acurrate; be not in the phenomenon that throwing switch, it can be to open, shut down automatically and Power Plant Monitoring service.
Description
Technical field
The utility model belongs to a kind of rotation-speed measuring device, and in particular to a kind of rotation-speed measuring device.
Background technique
Motor (English:Electric machinery is commonly called as " motor ") refer to and realizes electric energy according to the law of electromagnetic induction
A kind of calutron of conversion or transmitting.It is indicated in circuit with letter M.Its main function is to generate driving torque, as
The power source of electrical appliance or various machinery.
Motor is divided by working power type：Direct current generator and alternating current generator can be divided into.
Motor can be divided by structure and working principle：Dc motor, asynchronous motor, synchronous motor can be divided into.
Motor can be divided by starting with the method for operation：Capacitor start formula monopole asynchronous motor, capacitor operating type are single-phase different
Walk motor, capacitor start operating type monopole asynchronous motor and split-phase type monopole asynchronous motor.
But for the rotation-speed measuring device of motor, there is also measuring accuracy not high the phenomenon that throwing switch with measurement at present.
Summary of the invention
The utility model proposes that the purpose is to provide a kind of tachometric survey dress in order to solve the problems existing in the prior art
It sets.
The technical solution of the utility model is：A kind of rotation-speed measuring device, it is described including fluted disc on the rotating shaft is arranged
Plane where fluted disc is provided with No. I of detection rotation axis revolving speed close to switch, No. II close to switch, and described No. I close to switch water
Placing flat, described No. II is placed close to switch is vertical, described No. I close to switch, No. II close to switch composition Acquisition Circuit, it is described
Acquisition Circuit is connected with the signal collection end of PLC system.
The PLC system is connected by circuit breaker Q F3 with power supply circuit.
The power supply circuit both ends are parallel with lighting circuit, power supply monitoring circuit, signal isolator, human-computer interaction circuit.
The lighting circuit includes the manual switch IP1 and headlamp L1 being serially connected.
The power supply monitoring circuit includes No. I circuit and No. II circuit for being linked into power supply circuit, No. I circuit, II
Number circuit parallel connection is provided with the coil of relay KA9 in No. I circuit, is provided with relay KA9's in No. II circuit
The normal opened contact of normal opened contact, the relay KA9 is connected with indicator light HL1.
The human-computer interaction circuit includes HMI connector, and the HMI connector is connected with touch screen.
In the Acquisition Circuit No. I close to switch, No. II close to switch in parallel.
The power supply circuit includes 220V DC power supply, and the 220V DC power supply is connected with circuit breaker Q F1, the open circuit
Device QF1 is connected with transformer.
Described No. I close switch, No. II close switch are the close switch of inductance type positive-negative-positive.
Described No. I close to switch, No. II close to the gear tip clearance of switch and fluted disc away between 0.5mm ~ 4mm.
The utility model forms Acquisition Circuit acquisition pulse close to switch close to switch, No. II by orthogonal No. I
Signal, pulse signal issue each revolving speed point of unit output on-off model and corresponding with generating unit speed after PLC system is handled
4~20mA analog signals, the utility model measurement is more acurrate, is not in the phenomenon that throwing switch, can be to open, shut down automatically
And Power Plant Monitoring service.
Detailed description of the invention
Fig. 1 is the instrumentation plan of the utility model；
Fig. 2 is the measuring circuit figure of the utility model；
Wherein：
The close switch of 1 fluted disc 2 I
3 No. II close 4 power supply circuits of switch
5 lighting circuit, 6 power supply monitoring circuit
7 signal isolator, 8 human-computer interaction circuit
9 PLC system, 10 Acquisition Circuit.
Specific embodiment
Hereinafter, the utility model is described in detail referring to drawings and examples：
As shown in Figure 1 and 2, a kind of rotation-speed measuring device, including fluted disc 1 on the rotating shaft, 1 place of fluted disc is arranged
Plane is provided with No. I of detection rotation axis revolving speed close to switch 2, II close to switch 3, and described No. I puts close to 2 level of switch
It sets, described No. II is placed vertically close to switch 3, and described No. I close to switch 2, II forms Acquisition Circuit 10, institute close to switch 3
Acquisition Circuit 10 is stated to be connected with the signal collection end of PLC system 9.
The PLC system 9 is connected by circuit breaker Q F3 with power supply circuit 4.
4 both ends of power supply circuit are parallel with lighting circuit 5, power supply monitoring circuit 6, signal isolator 7, human-computer interaction electricity
Road 8.
The lighting circuit 5 includes the manual switch IP1 and headlamp L1 being serially connected.
No. I circuit and No. II circuit of the power supply monitoring circuit 6 including being linked into power supply circuit 4, No. I circuit,
No. II circuit parallel connection is provided with the coil of relay KA9 in No. I circuit, is provided with relay KA9 in No. II circuit
Normal opened contact, the normal opened contact of the relay KA9 connects with indicator light HL1.
The human-computer interaction circuit 8 includes HMI connector, and the HMI connector is connected with touch screen.
No. I close switch 2, II is in parallel close to switches 3 in the Acquisition Circuit 10.
The power supply circuit 4 includes 220V DC power supply, and the 220V DC power supply is connected with circuit breaker Q F1, described disconnected
Road device QF1 is connected with transformer.
Described No. I close to switch 2, II switchs close to switch 3 for inductance type positive-negative-positive is close.
Described No. I close to switch 2, II close to the gear tip clearance of switch 3 and fluted disc 1 away between 0.5mm ~ 4mm.
Described No. I output ends close to switch 2, II close to switches 3 include three lines, wherein brown line BN for+
24V, black line BK are signal wire, and blue line BU is ground wire.No. I pulse signal close to switch 2, II close to switch 3 is sent into
PLC system 9 is handled by PLC system 9, exports each signal.
9 signal of PLC system is FX3U-32MR-DS.
The measurement range of the utility model is 60~1500 revs/min.Output 3%, 35%, 60%, 95%, 97%, 100%,
140% tach signal；4~20MA analog signals of revolving speed are exported simultaneously.
The utility model forms Acquisition Circuit acquisition pulse close to switch close to switch, No. II by orthogonal No. I
Signal, pulse signal issue each revolving speed point of unit output on-off model and corresponding with generating unit speed after PLC system is handled
4~20mA analog signals, the utility model measurement is more acurrate, is not in the phenomenon that throwing switch, can be to open, shut down automatically
And Power Plant Monitoring service.
Claims (10)
1. a kind of rotation-speed measuring device, including fluted disc on the rotating shaft is arranged（1）, it is characterised in that：The fluted disc（1）Place
Plane is provided with No. I close switch of detection rotation axis revolving speed（2）, No. II close to switch（3）, described No. I close switch（2）Water
Placing flat, described No. II close switch（3）It is vertical to place, described No. I close switch（2）, No. II close to switch（3）Composition acquisition
Circuit（10）, the Acquisition Circuit（10）With PLC system（9）Signal collection end be connected.
2. a kind of rotation-speed measuring device according to claim 1, it is characterised in that：The PLC system（9）Pass through breaker
QF3 and power supply circuit（4）It is connected.
3. a kind of rotation-speed measuring device according to claim 2, it is characterised in that：The power supply circuit（4）Both ends are in parallel
There is lighting circuit（5）, power supply monitoring circuit（6）, signal isolator（7）, human-computer interaction circuit（8）.
4. a kind of rotation-speed measuring device according to claim 3, it is characterised in that：The lighting circuit（5）Including mutual
Concatenated manual switch IP1 and headlamp L1.
5. a kind of rotation-speed measuring device according to claim 3, it is characterised in that：The power supply monitoring circuit（6）Including
It is linked into power supply circuit（4）No. I circuit and No. II circuit, No. I circuit, No. II circuit parallel connection are set in No. I circuit
It is equipped with the coil of relay KA9, the normal opened contact of relay KA9 is provided in No. II circuit, the relay KA9's is normal
Contact is opened to connect with indicator light HL1.
6. a kind of rotation-speed measuring device according to claim 3, it is characterised in that：The human-computer interaction circuit（8）Including
HMI connector, the HMI connector are connected with touch screen.
7. a kind of rotation-speed measuring device according to claim 3, it is characterised in that：The Acquisition Circuit（10）In No. I connect
Nearly switch（2）, No. II close to switch（3）It is in parallel.
8. a kind of rotation-speed measuring device according to claim 3, it is characterised in that：The power supply circuit（4）Including 220V
DC power supply, the 220V DC power supply are connected with circuit breaker Q F1, and the circuit breaker Q F1 is connected with transformer.
9. a kind of rotation-speed measuring device according to claim 3, it is characterised in that：Described No. I close switch（2）, No. II
Close to switch（3）For the close switch of inductance type positive-negative-positive.
10. a kind of rotation-speed measuring device according to claim 3, it is characterised in that：Described No. I close switch（2）, No. II
Close to switch（3）With fluted disc（1）Gear tip clearance away between 0.5mm ~ 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820656084.8U CN208125756U (en) | 2018-05-04 | 2018-05-04 | A kind of rotation-speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820656084.8U CN208125756U (en) | 2018-05-04 | 2018-05-04 | A kind of rotation-speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208125756U true CN208125756U (en) | 2018-11-20 |
Family
ID=64184318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820656084.8U Active CN208125756U (en) | 2018-05-04 | 2018-05-04 | A kind of rotation-speed measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208125756U (en) |
-
2018
- 2018-05-04 CN CN201820656084.8U patent/CN208125756U/en active Active
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| GR01 | Patent grant |