CN202350727U - Integral axial displacement transmitter - Google Patents
Integral axial displacement transmitter Download PDFInfo
- Publication number
- CN202350727U CN202350727U CN2011204074449U CN201120407444U CN202350727U CN 202350727 U CN202350727 U CN 202350727U CN 2011204074449 U CN2011204074449 U CN 2011204074449U CN 201120407444 U CN201120407444 U CN 201120407444U CN 202350727 U CN202350727 U CN 202350727U
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Abstract
The utility model discloses an integral axial displacement transmitter, which comprises a signal excitation unit, a buffering output unit, a signal processing unit, a signal output unit and an alarm unit, wherein the signal excitation unit is used for providing a mobile signal; and the signal processing unit consists of a rectifying and filtering circuit, an analog to digital converter and a singlechip connected to a circuit board in sequence, and is used for receiving an electric signal of the signal excitation unit, processing the electric signal and transmitting it to the signal output unit and the alarm unit. Due to the adoption of the integral axial displacement transmitter, the measuring accuracy and reliability of rotary mechanical axial movement can be increased.
Description
Technical field
The utility model belongs to the technology of instrument and meter field, relates to a kind of transmitter, particularly relates to a kind of rotating machinery integral shaft to displacement transducer.
Background technology
Axial displacement is machine rotors along axis direction for the gap of thrust bearing between the two; The measurement of axial location; Can indicate the end play between rotary part and the fixed part; For rotating machinery such as steam turbine, blower fan and compressor etc., axial location is a crucial signal, and excessive axial location will cause that big mechanism damages.To jeopardize personal safety and cause device damage when serious; So must monitor and protect to the axial location of rotating machinery; Yet existing traverse measurement instrument can not guarantee to measure axially movable accuracy and reliability.
The utility model content
The purpose of the utility model is to overcome the defective that exists in the prior art, and the integral shaft that measurement accuracy and the reliability of a kind of raising to the axial displacement of rotating machinery is provided is to displacement transducer.
For achieving the above object, the technical scheme of the utility model provides a kind of integral shaft to displacement transducer, comprising:
The signal excitation unit; Comprise frequency generator; Be used to mobile eddy current probe the high frequency detectable signal is provided, move eddy current probe and convert the high frequency detectable signal into electric signal, and be sent to buffering output unit and signal processing unit through rectifier filer and signal amplifier;
The buffering output unit comprises the buffered device, is used for the expansion output of signal;
Signal processing unit; Comprise the current rectifying and wave filtering circuit, analog to digital converter and the single-chip microcomputer that are connected in turn on the circuit board; Be used to receive electric signal, and said electric signal is carried out, through output terminal result is sent to signal output unit and/or alarm unit then;
Signal output unit converts the electric signal of receiving signal processing unit into current signal output through photoisolator, digital to analog converter and converter successively;
Alarm unit comprises warning indicator and relay, and rotating speed reaches the movement value of reporting to the police and being provided with, and the electric signal of signal processing unit is sent to the warning indicator and the relay of alarm unit simultaneously through photoisolator.
Steadily export for the signal that guarantees alarm unit, also be included between signal processing unit and the alarm unit and be provided with chronotron; Said chronotron is adjustable chronotron.
In order to guarantee to measure the normal operation of mobile device, further optimized technical scheme is, said transmitter also comprises power module, is used to each unit power supply.
Be destroyed for fear of interference or transmitter; Further optimized technical scheme is; Said transmitter also comprises housing; Said signal excitation unit, buffering output unit, signal processing unit, signal output unit and alarm unit are located in the housing, on the panel of said housing, are provided with the interface that connects the signal excitation unit, output interface, the output interface that is provided with signal output unit and the reset key that is provided with the buffering output unit.
The advantage and the beneficial effect of the utility model are: the utility model can improve measurement accuracy and the reliability that rotating machinery is axially moved; Owing to also comprise being provided with chronotron, can guarantee that the signal of alarm unit is steadily exported; Because transmitter also comprises power module, be used to each unit power supply, the normal operation that can guarantee to measure mobile device.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model;
Fig. 2 is the structure rating synoptic diagram of the utility model;
Fig. 3 is the shell mechanism synoptic diagram of the utility model.
Among the figure, 1, housing; 2, warning indicator; 3, circuit board; 4, relay; 5, single-chip microcomputer; 6, power module.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Embodiment 1
Shown in Fig. 1 to 3, the technical scheme of the utility model provides a kind of integral shaft to displacement transducer, comprising:
The signal excitation unit; Comprise frequency generator; Be used to mobile eddy current probe the high frequency detectable signal is provided, move eddy current probe and convert the high frequency detectable signal into electric signal, and be sent to buffering output unit and signal processing unit through rectifier filer and signal amplifier;
The buffering output unit comprises the buffered device, is used for the expansion output of signal;
Signal processing unit; Comprise the current rectifying and wave filtering circuit, analog to digital converter and the single-chip microcomputer 5 that are connected in turn on the circuit board 3; Be used to receive electric signal, and said electric signal is carried out, through output terminal result is sent to signal output unit and/or alarm unit then;
Signal output unit converts the electric signal of receiving signal processing unit into current signal output through photoisolator, digital to analog converter and converter successively;
Alarm unit comprises warning indicator 2 and relay 4, and rotating speed reaches the movement value of reporting to the police and being provided with, and the electric signal of signal processing unit is sent to the warning indicator 2 and relay 4 of alarm unit simultaneously through photoisolator.
Embodiment 2
On the basis of embodiment 1, steadily export for the signal that guarantees alarm unit, also be included between signal processing unit and the alarm unit and be provided with chronotron.
Embodiment 3
On the basis of embodiment 2, said chronotron is adjustable chronotron.
Embodiment 4
On the basis of embodiment 1, in order to guarantee to measure the normal operation of mobile device, further optimized technical scheme is, said transmitter also comprises power module 6, is used to each unit power supply.
Embodiment 5
On the basis of embodiment 1; Be destroyed for fear of interference or transmitter; Further optimized technical scheme is; Said transmitter also comprises housing 1, and said signal excitation unit, buffering output unit, signal processing unit, signal output unit and alarm unit are located in the housing 1, on the panel of said housing 1, is provided with the interface that connects the signal excitation unit, output interface, the output interface that is provided with signal output unit and the reset key that is provided with the buffering output unit.
The utlity model has one-level warning function and secondary warning function.When marked change has taken place movement value; Need adopt remedial measures, machine can continue operation, and should be provided with one-level and report to the police this moment; When movement value continues to increase; Continue operation like machine and possibly cause damage, should take urgent measure and reduce axial displacement value or shutdown, should be provided with secondary and report to the police this moment.Alarming value should can be set arbitrarily in measurement range.When moving parameter surpassed alarm setting value, the pilot lamp of device should send alerting signal, and relay 4 begins action simultaneously.Rotating machinery among this embodiment is installed simple to displacement transducer with integral shaft, range 4mm or 2mm, and measuring error is at ± 1% full scale, and alarm range is the 0-100% full scale.
Be illustrated in figure 1 as the schematic block circuit diagram among the utility model embodiment.Adopt the power supply of DC24V power supply, offer single-chip microcomputer 5 after handling, the function of accomplishing 4-20mA output and reporting to the police by single-chip microcomputer 5 again through filtering, detection, A/D.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (5)
1. an integral shaft is characterized in that to displacement transducer, comprising:
The signal excitation unit; Comprise frequency generator; Be used to mobile eddy current probe the high frequency detectable signal is provided, move eddy current probe and convert the high frequency detectable signal into electric signal, and be sent to buffering output unit and signal processing unit through rectifier filer and signal amplifier;
The buffering output unit comprises the buffered device, is used for the expansion output of signal;
Signal processing unit; Comprise the current rectifying and wave filtering circuit, analog to digital converter and the single-chip microcomputer that are connected in turn on the circuit board; Be used to receive electric signal, and said electric signal is carried out, through output terminal result is sent to signal output unit and/or alarm unit then;
Signal output unit converts the electric signal of receiving signal processing unit into current signal output through photoisolator, digital to analog converter and converter successively;
Alarm unit comprises warning indicator and relay, and rotating speed reaches the movement value of reporting to the police and being provided with, and the electric signal of signal processing unit is sent to the warning indicator and the relay of alarm unit simultaneously through photoisolator.
2. integral shaft as claimed in claim 1 is characterized in that to displacement transducer: also be included between signal processing unit and the alarm unit and be provided with chronotron.
3. integral shaft as claimed in claim 2 is characterized in that to displacement transducer: said chronotron is adjustable chronotron.
4. integral shaft as claimed in claim 3 is characterized in that to displacement transducer: also comprise power module.
Like each described integral shaft of claim 1 to 4 to displacement transducer; It is characterized in that: also comprise housing; Said signal excitation unit, buffering output unit, signal processing unit, signal output unit and alarm unit are located in the housing, on the panel of said housing, are provided with the interface that connects the signal excitation unit, output interface, the output interface that is provided with signal output unit and the reset key that is provided with the buffering output unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204074449U CN202350727U (en) | 2011-10-21 | 2011-10-21 | Integral axial displacement transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204074449U CN202350727U (en) | 2011-10-21 | 2011-10-21 | Integral axial displacement transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350727U true CN202350727U (en) | 2012-07-25 |
Family
ID=46539726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204074449U Expired - Fee Related CN202350727U (en) | 2011-10-21 | 2011-10-21 | Integral axial displacement transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350727U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374310A (en) * | 2014-11-10 | 2015-02-25 | 天津卓森科技有限公司 | Linear displacement sensor and control method |
| CN106595728A (en) * | 2016-12-13 | 2017-04-26 | 西安交通大学 | Rotor axial displacement, rotating speed and inclination angle radial integrated measurement method |
-
2011
- 2011-10-21 CN CN2011204074449U patent/CN202350727U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374310A (en) * | 2014-11-10 | 2015-02-25 | 天津卓森科技有限公司 | Linear displacement sensor and control method |
| CN106595728A (en) * | 2016-12-13 | 2017-04-26 | 西安交通大学 | Rotor axial displacement, rotating speed and inclination angle radial integrated measurement method |
| CN106595728B (en) * | 2016-12-13 | 2019-12-20 | 西安交通大学 | Radial integrated measurement method for axial displacement, rotating speed and inclination angle of rotor |
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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: 20120725 Termination date: 20121021 |