CN208223632U - A kind of Hydropower Unit vibration detecting sensor - Google Patents
A kind of Hydropower Unit vibration detecting sensor Download PDFInfo
- Publication number
- CN208223632U CN208223632U CN201820733459.6U CN201820733459U CN208223632U CN 208223632 U CN208223632 U CN 208223632U CN 201820733459 U CN201820733459 U CN 201820733459U CN 208223632 U CN208223632 U CN 208223632U
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- circuit
- plastic base
- sensor body
- fixed
- hydropower unit
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of Hydropower Unit vibration detecting sensors, including sensor body；The transmission line for signal transmission is equipped at the top of sensor body；Plastic base is fixed in sensor body bottom；Plastic base center offers plastic base fixing threaded hole, and two sides are symmetrically arranged with perforation, and plastic base is fixed on the shell of rotating machinery by perforation and plastic base fixing threaded hole；Sensor body is built-in with pcb board；Vibrating sensor chip is integrated on pcb board and for providing the AC/DC power module of power supply；Vibrating sensor chip is successively connect with integrating amplification circuit, filter circuit, voltage follower circuit, signal processing amplifying circuit and pick-up protection output end；AC/DC power module is connect with integrating amplification circuit, signal filter circuit and voltage follower circuit respectively；Pick-up protection output end is connect by transmission line with host computer.
Description
Technical field
The utility model belongs to the technical field of rotating machinery, and in particular to a kind of Hydropower Unit vibration detecting sensor.
Background technique
Rotating machinery is broadly divided into two classes, and one kind is microcomputer controlled；Another kind of is self-centering type.Self-centering type turns
Sub- automatic balancing arrangement have structure simple, reliable operation, it is low in cost, be not required to provide extra power, and can be to rotor
The advantages that imbalance automatically adjusts, but have and in subcritical state can increase the characteristic of the amount of unbalance of rotor, so that this
Class automatic balancing arrangement can just play the role of self balancing when that must run in the state of crossing critical speed, therefore deposit
The shortcomings that cannot be balanced adjusting under full revolving speed, there is certain limitation in, is applied to high speed more at present and revolves
In favourable turn tool.
The vibration problem of rotating machinery is always the important topic of machinery industry, and especially modern large rotating machinery turns
Rotor speed is continuously improved, and the vibration problem for directly affecting rotating machinery working efficiency and reliability is just more prominent.Therefore it needs
The vibration of rotating machinery is detected, is bestirred oneself the specific influence of industry convenient for research vibration for rotating machinery, and the prior art is to rotation
The detection of mechanical oscillation lacks proprietary equipment, and detection accuracy is lower, is not easy to the research in later period.
Utility model content
The purpose of this utility model is that being directed to above-mentioned deficiency in the prior art, a kind of Hydropower Unit vibration detection is provided
Sensor lacks task equipment, and the problem that detection accuracy is lower to solve the prior art to the detection of rotating machinery vibrating.
In order to achieve the above objectives, the technical scheme adopted by the utility model is that:
A kind of Hydropower Unit vibration detecting sensor comprising sensor body；It is equipped at the top of sensor body for believing
Number transmission transmission line；Plastic base is fixed in sensor body bottom；It is solid that plastic base center offers plastic base
Determine screw hole, two sides are symmetrically arranged with perforation, and plastic base is fixed on rotating machinery by perforation and plastic base fixing threaded hole
On shell；
Sensor body is built-in with pcb board；Vibrating sensor chip is integrated on pcb board and for providing the AC/ of power supply
DC power module；Vibrating sensor chip is successively and at integrating amplification circuit, signal filter circuit, voltage follower circuit, signal
Reason amplifying circuit is connected with pick-up protection output end；AC/DC power module respectively with integrating amplification circuit, filter circuit and voltage
Follow circuit connection；Pick-up protection output end is connect by transmission line with host computer.
Preferably, transmission line passes through fixture nut, and is fixed in fixture nut by fixed plastic cement；Fixture nut and biography
Defeated device ontology is connected through a screw thread.
Preferably, sensor body bottom is embedded on plastic base by three sensor fixing holes.
Preferably, signal processing amplifying circuit includes that sequentially connected signal processing circuit, signal amplification circuit and V/I turn
Change power output circuit.
Hydropower Unit vibration detecting sensor provided by the utility model, has the advantages that
The Hydropower Unit detection sensor of the utility model can be widely used for: the large rotating machines device such as blower, compressor, pump
On, sensor body is fixed on the shell of rotating machinery, the vibration of its bearing block and casing is measured.Except this, the vibration of detection
Dynamic signal improves detection by integrating amplification circuit, filter circuit and signal processing amplifying circuit built in sensor body
Precision.It efficiently solves the prior art and task equipment is lacked to the detection of rotating machinery vibrating, and detection accuracy is lower asks
Topic.
Detailed description of the invention
Fig. 1 is the forward and backward view of Hydropower Unit vibration detecting sensor.
Fig. 2 is the left and right view of Hydropower Unit vibration detecting sensor.
Fig. 3 is the top view of Hydropower Unit vibration detecting sensor.
Fig. 4 is the bottom view of Hydropower Unit vibration detecting sensor.
Fig. 5 is Hydropower Unit vibration detecting sensor internal circuit schematic diagram.
Wherein, 1, sensor body；2, fixture nut；3, fixed plastic cement；4, transmission line；5, plastic base；6, it perforates；7,
Sensor fixing hole；8, plastic base fixing threaded hole.
Specific embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all are created using the utility model of the utility model design in the column of protection.
According to one embodiment of the application, with reference to Fig. 1-4, the Hydropower Unit vibration detecting sensor of this programme, including
Sensor body 1.
Fixture nut 2 is equipped with by screw thread at the top of sensor body 1, transmission line 4 passes through fixture nut 2, sensor body 1
The vibration signal that will test is uploaded in host computer by transmission line 4, and host computer can be computer.
1 bottom of sensor body is fixed on plastic base 5, and 5 center of plastic base offers plastic base and fixes
Screw hole 8, two sides are symmetrically arranged with perforation 6, and plastic base 5 is fixed on rotating machinery by perforation 6 and plastic base fixing threaded hole 8
Shell on.1 bottom of sensor body is embedded on plastic base 5 by three sensor fixing holes 7.
The hole M10 is opened up in the shell (outsourcing) of rotating machinery, depth 10mm passes through plastic base fixing threaded hole 8
Sensor body 1 is fixed on rotating machinery, and then acquires the vibration of rotating machinery.
Transmission line 4 passes through fixture nut 2, and is fixed in fixture nut 2 by fixed plastic cement 3；Fixture nut 2 and sensing
Device ontology 1 is connected through a screw thread.
With reference to Fig. 5, sensor body 1 is built-in with pcb board；Vibrating sensor chip is integrated on pcb board and for providing
The AC/DC power module of power supply；Vibrating sensor chip is successively electric with integrating amplification circuit, signal filter circuit, voltage follow
Road, signal processing amplifying circuit are connected with pick-up protection output end；AC/DC power module respectively with integrating amplification circuit, filtering
Circuit is connected with voltage follower circuit；Pick-up protection output end is connect by transmission line 4 with host computer.
Wherein, vibrating sensor chip is ADIS16220 chip, acquires the vibration signal of rotating machinery, and will vibration
Signal is converted to voltage signal output, and the precision of detection acquisition is 100 μm.
Integrating amplification circuit is used for the integral compensation in the elimination of offset voltage in amplification treatment circuit and feedback voltage.
Signal processing amplifying circuit includes sequentially connected signal processing circuit, signal amplification circuit and V/I conversion electric power
Output circuit.Voltage signal is amplified, and is sent to V/I conversion electric power output circuit, voltage signal is converted into electric current
Signal, and then protect output end to export outward by pick-up, i.e., current signal is sent in host computer by transmission line 4.
The Hydropower Unit detection sensor of the utility model can be widely used for: the large rotating machines device such as blower, compressor, pump
On, sensor body 1 is fixed on the shell of rotating machinery, the vibration of its bearing block and casing is measured.Except this, the vibration of detection
Dynamic signal improves detection by integrating amplification circuit, filter circuit and signal processing amplifying circuit built in sensor body 1
Precision.It efficiently solves the prior art and task equipment is lacked to the detection of rotating machinery vibrating, and detection accuracy is lower asks
Topic.
Although being described in detail in conjunction with specific embodiment of the attached drawing to utility model, should not be construed as to this
The restriction of the protection scope of patent.In range described by claims, those skilled in the art are without creative work
The various modifications and deformation that can make still belong to the protection scope of this patent.
Claims (4)
1. a kind of Hydropower Unit vibration detecting sensor, it is characterised in that: including sensor body；At the top of the sensor body
Equipped with the transmission line transmitted for signal；Plastic base is fixed in the sensor body bottom；The plastic base centre bit
It sets and offers plastic base fixing threaded hole, two sides are symmetrically arranged with perforation, and plastic base passes through perforation and the fixed spiral shell of plastic base
Hole is fixed on the shell of rotating machinery；
The sensor body is built-in with pcb board；Vibrating sensor chip is integrated on the pcb board and for providing power supply
AC/DC power module；The vibrating sensor chip successively with integrating amplification circuit, filter circuit, voltage follower circuit, signal
Processing amplifying circuit is connected with pick-up protection output end；The AC/DC power module is filtered with integrating amplification circuit, signal respectively
Circuit is connected with voltage follower circuit；The pick-up protection output end is connect by transmission line with host computer.
2. Hydropower Unit vibration detecting sensor according to claim 1, it is characterised in that: the transmission line, which passes through, to be fixed
Nut, and be fixed in fixture nut by fixed plastic cement；The fixture nut is connected through a screw thread with transmitter ontology.
3. Hydropower Unit vibration detecting sensor according to claim 1, it is characterised in that: the sensor body bottom
It is embedded on plastic base by three sensor fixing holes.
4. Hydropower Unit vibration detecting sensor according to claim 1, it is characterised in that: the signal processing amplification electricity
Road includes sequentially connected signal processing circuit, signal amplification circuit and V/I conversion electric power output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733459.6U CN208223632U (en) | 2018-05-17 | 2018-05-17 | A kind of Hydropower Unit vibration detecting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820733459.6U CN208223632U (en) | 2018-05-17 | 2018-05-17 | A kind of Hydropower Unit vibration detecting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208223632U true CN208223632U (en) | 2018-12-11 |
Family
ID=64508054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820733459.6U Expired - Fee Related CN208223632U (en) | 2018-05-17 | 2018-05-17 | A kind of Hydropower Unit vibration detecting sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208223632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781243A (en) * | 2018-12-26 | 2019-05-21 | 中国机械工业集团有限公司 | A kind of architectural environment in short-term is with the viscous type vibration monitoring data acquisition device that declines |
-
2018
- 2018-05-17 CN CN201820733459.6U patent/CN208223632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781243A (en) * | 2018-12-26 | 2019-05-21 | 中国机械工业集团有限公司 | A kind of architectural environment in short-term is with the viscous type vibration monitoring data acquisition device that declines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20210517 |