CN207380076U - A kind of speed measuring device and generator speed-measuring structure - Google Patents
A kind of speed measuring device and generator speed-measuring structure Download PDFInfo
- Publication number
- CN207380076U CN207380076U CN201721331604.XU CN201721331604U CN207380076U CN 207380076 U CN207380076 U CN 207380076U CN 201721331604 U CN201721331604 U CN 201721331604U CN 207380076 U CN207380076 U CN 207380076U
- Authority
- CN
- China
- Prior art keywords
- speed
- generator
- measuring
- sensor
- velocity sensor
- 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.)
- Active
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model is related to electrical generator fields, in particular to a kind of speed measuring device and generator speed-measuring structure.The utility model provides a kind of speed measuring device, and one end of the connecting shaft is equipped with driven member, and the other end is used to be connected with unit under test.Velocity sensor is configured for the rotating speed of measurement driven member.The speed measuring device can obtain the data of rotating speed outside unit under test by velocity sensor, without changing unit under test structure, and it is easy for installation.The utility model additionally provides a kind of generator speed-measuring structure, and including generator and above-mentioned speed variator, speed measuring device includes connecting shaft and velocity sensor.The generator speed-measuring structure is compact, integrates, good seal performance, good appearance, and each component can individually dismantle maintenance, replace upgrading, have very strong practicability.
Description
Technical field
The utility model is related to electrical generator fields, in particular to a kind of speed measuring device and generator speed-measuring structure.
Background technology
Steam turbine generator refers to the generator with Steam Turbine Driven.The superheated steam generated by boiler enters swollen in steam turbine
Swollen acting makes blade rotate and drive electrical power generators, and the waste vapour after acting is through condenser, water circulating pump, condensate pump, feedwater
Heating unit etc. sends boiler recycling back to.
Speed measuring device is widely used on steam turbine generator unit, can be real-time by the data transmission of tachogenerator
Monitor the rotating speed of steam turbine generator.The installation site of speed measuring device should meet speed measuring fluted disc and be rotated coaxially with generator amature,
Meet the requirement of easy disassembly again.
Speed measuring fluted disc is mounted on generator shaft by existing generator speed measuring device, and tachogenerator is exposed outside,
Have the shortcomings that complicated, dismounting is inconvenient, integrated level is not high and security is relatively low.
Utility model content
The purpose of this utility model is that providing a kind of speed measuring device, one end of the connecting shaft is equipped with driven member, the other end
For being connected with unit under test.Velocity sensor is configured for the rotating speed of measurement driven member.The speed measuring device can be in quilt
The outer data that rotating speed is obtained by velocity sensor of component are surveyed, without changing unit under test structure, and it is easy for installation.
Second purpose of the utility model is, provides a kind of generator speed-measuring structure, including generator and upper
Speed variator is stated, speed measuring device includes connecting shaft and velocity sensor.The generator speed-measuring structure is compact, integrates, good seal performance,
Good appearance.
What the embodiment of the utility model was realized in：
A kind of speed measuring device, including：
Connecting shaft；One end of the connecting shaft is equipped with driven member；
Velocity sensor；Velocity sensor is configured for the rotating speed of measurement driven member.
The speed measuring device can obtain the data of rotating speed outside unit under test by velocity sensor, without changing quilt
Modular construction is surveyed, and it is easy for installation.
In a kind of embodiment of the utility model：
Driven member is speed measuring fluted disc；Speed measuring fluted disc is coaxially disposed with connecting shaft.
In a kind of embodiment of the utility model：
Gap is left between velocity sensor and speed measuring fluted disc.
A kind of generator speed-measuring structure, including generator and above-mentioned speed measuring device；Generator includes body and shaft；Even
The one end of spindle away from driven member is connected with shaft.
The generator speed-measuring structure is compact, integrates, good seal performance, good appearance.
In a kind of embodiment of the utility model：
Connecting shaft includes the first matrix and the second matrix that are connected with each other；First matrix is fixedly connected with shaft；Driven member
Arranged on the one end of the second matrix away from the first matrix.
In a kind of embodiment of the utility model：
Generator speed-measuring structure further includes outer cover and cover board；Outer cover one end is connected with body；Cover board is with outer cover away from body
One end removably connect；Outer cover and cover board surround accommodation space；Driven member and velocity sensor are arranged in accommodation space.
In a kind of embodiment of the utility model：
Generator speed-measuring structure further includes sensor stand；Velocity sensor is arranged on sensor stand one end；Sensor branch
The frame other end is connected with body；Sensor stand is arranged in accommodation space.
In a kind of embodiment of the utility model：
Sensor stand includes 4；4 sensor stands are uniformly arranged around connecting shaft.
In a kind of embodiment of the utility model：
Sensor stand is detachably connected with body by bolt.
In a kind of embodiment of the utility model：
Generator speed-measuring structure further includes display；Display is electrically connected with velocity sensor；Display turns for showing
The velocity of rotation of axis.
The technical solution of the utility model at least possesses following advantageous effect：
The utility model provides a kind of speed measuring device, and one end of the connecting shaft is equipped with driven member, and the other end is used for being tested
Component connects.Velocity sensor is configured for the rotating speed of measurement driven member.The speed measuring device can lead to outside unit under test
The data that velocity sensor obtains rotating speed are crossed, without changing unit under test structure, and it is easy for installation.
The utility model additionally provides a kind of generator speed-measuring structure, and including generator and above-mentioned speed variator, test the speed dress
It puts including connecting shaft and velocity sensor.The generator speed-measuring structure is compact, integrates, good seal performance, good appearance, and each portion
Part can individually dismantle maintenance, replace upgrading, have very strong practicability.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram at the first visual angle of speed measuring device in the utility model embodiment 1；
Fig. 2 is the structure diagram at the second visual angle of speed measuring device in the utility model embodiment 1；
Fig. 3 is the cross-sectional view of generator speed-measuring structure in the utility model embodiment 2；
Fig. 4 is the structure diagram of body and sensor stand in the utility model embodiment 2.
In figure：100- speed measuring devices；110- connecting shafts；The first matrixes of 111-；The second matrixes of 113-；120- velocity pick-ups
Device；130- speed measuring fluted discs；200- generator speed-measuring structures；211- bodies；213- shafts；221- outer covers；223- cover boards；230- is passed
Sensor bracket.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can configure to arrange and design with a variety of.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.In addition, term " the
One ", " second " etc. is only used for distinguishing description, and it is not intended that instruction or hint relative importance.
, it is necessary to explanation in the description of the utility model embodiment, term " interior ", " outer ", " on " etc. instructions
Orientation or position relationship are usually to be put based on orientation shown in the drawings or position relationship or when utility model product use
The orientation or position relationship put are for only for ease of description the utility model and simplify description rather than instruction or imply signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that this practicality
New limitation.
Steam turbine generator refers to the generator with Steam Turbine Driven.The superheated steam generated by boiler enters swollen in steam turbine
Swollen acting makes blade rotate and drive electrical power generators, and the waste vapour after acting is through condenser, water circulating pump, condensate pump, feedwater
Heating unit etc. sends boiler recycling back to.
Speed measuring device is widely used on steam turbine generator unit, can be real-time by the data transmission of tachogenerator
Monitor the rotating speed of steam turbine generator.The installation site of speed measuring device should meet speed measuring fluted disc and be rotated coaxially with generator amature,
Meet the requirement of easy disassembly again.
Speed measuring fluted disc is mounted on generator shaft by existing generator speed measuring device, and tachogenerator is exposed outside,
Have the shortcomings that complicated, dismounting is inconvenient, integrated level is not high and security is relatively low.
For the deficiencies in the prior art, detailed description below is provided：
Embodiment 1
It is a kind of speed measuring device 100 provided in this embodiment with reference to figure 1, in figure, including connecting shaft 110 and velocity pick-up
Device 120.The speed measuring device 100 is used to measure the rotating speed for the component being connected with connecting shaft 110 by velocity sensor 120.
110 one end of connecting shaft is equipped with driven member, and the other end is used to be connected with unit under test.Velocity sensor 120 is constructed
Into for measuring the rotating speed of driven member.The speed measuring device 100 can obtain rotating speed outside unit under test by velocity sensor 120
Data, it is and easy for installation without changing unit under test structure.
With reference to Fig. 2, in the present embodiment, driven member is speed measuring fluted disc 130.Test the speed disk and connecting shaft 110 it is coaxial
It sets.Velocity sensor 120 is accordingly fluted disc speed measuring sensor special, is tested the speed in unit under test by the drive of connecting shaft 110
When fluted disc 130 rotates, speed sensor measures 130 velocity of rotation of speed measuring fluted disc, and exports signal.Need what is illustrated
It is that in other embodiments, above-mentioned driven member can also be disk or block, and velocity sensor 120 selects corresponding model,
Such as magnetoelectric velocity transducer 120.
Further, needed since velocity sensor 120 actually uses, between velocity sensor 120 and the disk that tests the speed
Gap is left, in the present embodiment, control gap is between 1mm~4mm, to ensure the accurate of measurement.It should be noted that
In other specific embodiments, above-mentioned gap can be less than 1mm or more than 4mm.
Unit under test rotating speed is measured using speed measuring fluted disc 130 and velocity sensor 120, from residual in unit under test
The influence of pressure also from the interference of aperiodic clutter, possesses higher reliability, also has height also with speed measuring fluted disc 130
Reliable fast (wriggling) detection function of zero-turn.
A kind of speed measuring device 100 in the present embodiment so works：
The one end of connecting shaft 110 away from speed measuring fluted disc 130 is connected with unit under test, and unit under test passes through 110 band of connecting shaft
When dynamic speed measuring fluted disc 130 rotates, speed sensor measures 130 velocity of rotation of speed measuring fluted disc, and exports signal, to supervise
Control.
The speed measuring device 100 is simple in structure, easy for installation and while detecting need not change unit under test structure.
Embodiment 2
It is a kind of generator speed-measuring structure 200 provided in this embodiment with reference to figure 3, in figure, including generator and implementation
A kind of speed measuring device 100 in example 1, speed measuring device 100 include connecting shaft 110 and velocity sensor 120.The speed measuring device 100
For measuring the rotating speed for the component being connected with connecting shaft 110 by velocity sensor 120.110 one end of connecting shaft is equipped with driven member,
The other end is used to be connected with unit under test.Velocity sensor 120 is configured for the rotating speed of measurement driven member.
Driven member is speed measuring fluted disc 130.The disk that tests the speed is coaxially disposed with connecting shaft 110.Velocity sensor 120 is accordingly
Fluted disc speed measuring sensor special, when unit under test drives speed measuring fluted disc 130 to rotate by connecting shaft 110, speed sensor pair
130 velocity of rotation of speed measuring fluted disc measures, and exports signal.It needs since velocity sensor 120 actually uses, is passed in speed
Gap is left between sensor 120 and the disk that tests the speed, in the present embodiment, control gap is between 1mm~4mm, to ensure to measure
It is accurate.
Generator includes body 211 and shaft 213, and the one end of connecting shaft 110 away from speed measuring fluted disc 130 connects with shaft 213
It connects.At work, shaft 213 rotates drives all parts work in body 211 to generator, since generator is existing equipment,
It does not repeat excessively herein.Shaft 213 drives speed measuring fluted disc 130 to rotate by connecting shaft 110, is carried out using velocity sensor 120
The measurement of speed.
Further, connecting shaft 110 includes the first matrix 111 and the second matrix 113 that interconnect.Due to connecting shaft
Closely connection is needed just to can guarantee the stabilization of transmission between 110 and shaft 213, reduces unexpectedly occur in addition, therefore the first matrix
111 diameter of sections are more than the diameter in 113 section of the second matrix, and the first matrix 111 is fixedly connected with shaft 213, and driven member part is set
In the one end of the second matrix 113 away from the first matrix 111.In the present embodiment, the first matrix 111 passes through bolt with shaft 213
It is fixedly connected, ensures the stability of connection.It should be noted that in other specific embodiments, the first matrix 111 and shaft
213 can also be and be welded to connect, in addition, connecting shaft 110 is according to actual needs, can also be other structures.
In the present embodiment, generator speed-measuring structure 200 further includes outer cover 221 and cover board 223.Pass through outer cover 221 and lid
Plate 223 protects the normal work of above-mentioned velocity sensor 120, and 221 one end of outer cover be connected with 211 outside of body, cover board 223 with outside
221 one end away from body 211 of cover removably connect, and outer cover 221 surrounds accommodation space with cover board 223.Driven member and speed
Sensor 120 is arranged in accommodation space.Good leakproofness is provided by outer cover 221 and cover board 223.And due to cover board 223
It is removably connected with outer cover 221, when driven member or velocity sensor 120 break down, by cover board 223 from outer cover 221
It removes, you can open wide accommodation space, equipment in accommodation space is repaired or replaced.It is it should be noted that specific at other
In embodiment, above-mentioned outer cover 221 and cover board 223 can be not provided with.
In order to ensure that velocity sensor 120 is good corresponding with speed measuring fluted disc 130, ensureing its steady operation and be convenient for
It is replaced during 120 failure of velocity sensor.In the present embodiment, generator speed-measuring structure 200 further includes sensor stand
230, the outer circumferential surface that velocity sensor 120 possesses the gear teeth arranged on one end of sensor stand 230 with speed measuring fluted disc 130 is corresponding,
230 other end of sensor stand is connected with body 211, and sensor stand 230 is made to be fixed with respect to body 211, ensures velocity pick-up
The stabilization of device 120.Sensor stand 230 is arranged in accommodation space, when outer cover 221 and cover board 223 connect, says a sensor envelope
It closes in accommodation space, avoids external interference, the working environment of opposing seal is provided.When velocity sensor 120 breaks down,
It from sensor stand 230 is removed and replaces or repairs.It should be noted that in other specific embodiments,
According to actual needs, the sensor stent 230 can also be other structures.Further, it is also possible to it is not provided with sensor branch
Frame 230.
With reference to figure 4, further, sensor stand 230 includes 4, and 4 sensor stands 230 are equal around connecting shaft 110
Even setting, adjacent sensors stent 230 are spaced 90 °.In general, it is respectively arranged with velocity sensor on 4 sensor stands 230
120, therefore generator speed-measuring structure 200 includes 4 velocity sensors 120 in the present embodiment, if some velocity pick-up at work
Device 120 breaks down, remaining sensor works on, and can ensure the data essence of 120 output revolving shaft of velocity sensor, 213 rotating speed
True property.It should be noted that in other specific embodiments, 230 quantity of sensor stand can be more than or less than 4, this
Outside, velocity sensor 120 can not be set on each sensor stand 230, but as needed, by velocity sensor 120
Selectivity is mounted on sensor stand 230.
Sensor stand 230 is removably connected by bolt with body 211, is offered on 211 shell of body several
Sensor stand 230 is mounted on body 211 by threaded hole as needed, for different operating situation, different number is set to pass
Sensor bracket 230 and velocity sensor 120, it is cost-effective.And each sensor stand 230 and velocity sensor 120 can be with
It is individually replaced or upgrades, increase practicability.Connect it should be noted that the sensor stent 230 can also be welded with body 211
It connects.
In the present embodiment, generator speed-measuring structure 200 further includes display (not shown), and display is passed with speed
Sensor 120 is electrically connected.Display is used to showing the velocity of rotation of shaft 213, i.e. velocity sensor 120 is by speed measuring fluted disc 130
Rotating speed is converted to level signal, exports to display, and vision signal is converted by controller, is shown rotating speed by display
Go out and read for user.It should be noted that in other specific embodiments, according to actual needs, can be not provided with showing
Show device.
A kind of generator speed-measuring structure 200 in the present embodiment so works：
Cover board 223 under outer cover 221 is removed, velocity sensor 120 is mounted on sensor stand 230 as needed
On, then cover board 223 and outer cover 221 are assembled.Generator is run, shaft 213 drives speed measuring fluted disc 130 by connecting shaft 110
It rotates, the measurement of speed, and outputs level signals is carried out using velocity sensor 120, show rotating speed finally by display
Go out and read for user.
A kind of generator speed-measuring structure 200 in the present embodiment, it is compact-sized, it integrates, good seal performance, beautiful outline form
It sees, and each component can individually dismantle maintenance, replace upgrading, have very strong practicability.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of speed measuring device, which is characterized in that including：
Connecting shaft；The one end of the connecting shaft is equipped with driven member；
Velocity sensor；The velocity sensor is configured for measuring the rotating speed of the driven member.
2. a kind of speed measuring device according to claim 1, it is characterised in that：
The driven member is speed measuring fluted disc；The speed measuring fluted disc is coaxially disposed with the connecting shaft.
3. a kind of speed measuring device according to claim 2, it is characterised in that：
Gap is left between the velocity sensor and the speed measuring fluted disc.
4. a kind of generator speed-measuring structure, it is characterised in that：
The generator speed-measuring structure includes the speed measuring device described in any one in generator and the claims 1-3；Institute
Stating generator includes body and shaft；The one end of the connecting shaft away from the driven member is connected with the shaft.
5. a kind of generator speed-measuring structure according to claim 4, it is characterised in that：
The connecting shaft includes the first matrix and the second matrix that are connected with each other；First matrix is fixed with the shaft to be connected
It connects；The driven member is arranged on the one end of second matrix away from first matrix.
6. a kind of generator speed-measuring structure according to claim 4, it is characterised in that：
The generator speed-measuring structure further includes outer cover and cover board；Described outer cover one end is connected with the body；The cover board with
The one end of the outer cover away from the body removably connects；The outer cover and the cover board surround accommodation space；It is described from
Moving part and the velocity sensor are arranged in the accommodation space.
7. a kind of generator speed-measuring structure according to claim 6, it is characterised in that：
The generator speed-measuring structure further includes sensor stand；The velocity sensor is arranged on described sensor stand one end；
The sensor stand other end is connected with the body；The sensor stand is arranged in the accommodation space.
8. a kind of generator speed-measuring structure according to claim 7, it is characterised in that：
The sensor stand includes 4；4 sensor stands are uniformly arranged around the connecting shaft.
9. a kind of generator speed-measuring structure according to claim 7, it is characterised in that：
The sensor stand is detachably connected by bolt and the body.
10. a kind of generator speed-measuring structure according to claim 4, it is characterised in that：
The generator speed-measuring structure further includes display；The display is electrically connected with the velocity sensor；The display
Device is used to show the velocity of rotation of the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721331604.XU CN207380076U (en) | 2017-10-11 | 2017-10-11 | A kind of speed measuring device and generator speed-measuring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721331604.XU CN207380076U (en) | 2017-10-11 | 2017-10-11 | A kind of speed measuring device and generator speed-measuring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207380076U true CN207380076U (en) | 2018-05-18 |
Family
ID=62338722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721331604.XU Active CN207380076U (en) | 2017-10-11 | 2017-10-11 | A kind of speed measuring device and generator speed-measuring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207380076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975095A (en) * | 2018-07-16 | 2018-12-11 | 杜淑荣 | A kind of band tests the speed the power cable folding and unfolding vehicle of buffering |
| CN111505330A (en) * | 2020-05-31 | 2020-08-07 | 嘉兴学院 | Speed measuring device for hydroelectric generating set |
-
2017
- 2017-10-11 CN CN201721331604.XU patent/CN207380076U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975095A (en) * | 2018-07-16 | 2018-12-11 | 杜淑荣 | A kind of band tests the speed the power cable folding and unfolding vehicle of buffering |
| CN111505330A (en) * | 2020-05-31 | 2020-08-07 | 嘉兴学院 | Speed measuring device for hydroelectric generating set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102005016524B4 (en) | Method and device for detecting rotor blade ice | |
| CN104142229B (en) | A kind of wind power generating set flange bolt on-line monitoring and fault diagnosis system | |
| CN207380076U (en) | A kind of speed measuring device and generator speed-measuring structure | |
| CN205260225U (en) | Long -range central monitoring system of health condition is synthesized to fan | |
| CN108593229B (en) | Integral impeller blade vibration measurement device and measurement method | |
| CN101666676A (en) | Compound alternating torque and torsional vibration loading test platform | |
| CN106382882A (en) | Test system and test method of rotating machinery rotor-stator rim field | |
| CN206132392U (en) | Fan trouble experimental simulation platform | |
| CN104007386A (en) | Comprehensive offline test platform of generator rotor insulation measurement device | |
| CN202956389U (en) | Portable wind speed measuring device | |
| CN204831532U (en) | Wind generating set pylon mode test system | |
| CN205120329U (en) | Novel electronic servo -type unipolar exciter test platform | |
| CN109738104A (en) | Water-turbine top cover bolt monitoring device and method | |
| CN108414834A (en) | The performance comprehensive test device of wind electricity change paddle slip ring | |
| JP2017122635A (en) | Abnormality diagnosis device of wind power generation facility | |
| CN110095279A (en) | Robot retarder experimental apparatus for testing | |
| CN214893854U (en) | Rotor dynamic balance test bench | |
| US6876715B2 (en) | Measurement system of torsion vibration for reactor internal pump | |
| CN210154796U (en) | Wind power gear box test system | |
| CN211230717U (en) | Fan tower section of thick bamboo safety and basis settlement monitoring devices | |
| CN209326855U (en) | Water-turbine top cover bolt monitoring device and hydraulic turbine monitoring device | |
| CN205027438U (en) | Turbo generator set's vibration detection device and turbo generator set | |
| CN205669464U (en) | A kind of impeller of wind turbine set imbalance test system | |
| CN207598434U (en) | A kind of offshore wind farm set tower drum and the safe on-Line Monitor Device of pile foundation | |
| CN105403727A (en) | Blade type wind direction and wind speed sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |