CN207556596U - A kind of turbine consumption sensor - Google Patents
A kind of turbine consumption sensor Download PDFInfo
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- CN207556596U CN207556596U CN201721640293.5U CN201721640293U CN207556596U CN 207556596 U CN207556596 U CN 207556596U CN 201721640293 U CN201721640293 U CN 201721640293U CN 207556596 U CN207556596 U CN 207556596U
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- air deflector
- worm shaft
- consumption sensor
- impeller
- helical gears
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Abstract
The utility model discloses a kind of turbine consumption sensor, including housing（1）, be fixed on housing（1）Impeller in cylindrical cavity（3）And loaded on housing（1）Outer induction mechanism（7）, it is characterised in that：Worm gearing is further included, the worm gearing includes worm shaft（10）And helical gears（9）, worm shaft（10）With impeller（3）The installation axle of front end is coaxially connected, worm shaft（10）With helical gears（9）Engagement, helical gears（9）Connect armature（5）, armature（5）With induction mechanism（7）Induction coil（6）It is correspondingly arranged, induction coil（6）With induction mechanism（7）Transmission carrier voltage signal socket（4）Connection, since signal conversion is concentrated on independent induction mechanism（7）It is interior, induction mechanism（7）It is small, it is easily installed on various kinds sandwich type element, solves the small limitation of existing turbine consumption sensor aperture.
Description
Technical field
The utility model is related to a kind of turbine consumption sensor more particularly to a kind of measurement streams for aircraft fuel system
Cross the instantaneous consumption of fuel oil and the turbine consumption sensor of total burn-off.
Background technology
Turbine consumption sensor is a kind of delicate flow measuring instrumentss, is widely used in the necks such as oil, chemical industry, metallurgy, scientific research
The metering in domain, control system.The structure of turbine consumption sensor is mainly amplified by instrument housing, impeller (turbine) and signal detection
The compositions such as device.Fluid flows through sensor housing, and since blade and the flow direction of impeller have certain angle, the impulse force of fluid makes blade
With rotating torque, the rear blade of moment of friction and fluid resistance is overcome to rotate, the stabilization of speed after equalising torque, certain
Under the conditions of, rotating speed is directly proportional to flow velocity, and since blade has magnetic conductivity, it is in the magnetic field of signal detector, the blade of rotation
Cutting magnetic line periodically changes the magnetic flux of coil, so as to which coil both ends be made to induce electric impulse signal, this signal warp
Cross the amplification shaping of amplifier, be formed with the continuous rectangular wave pulse of certain amplitude, can teletransmission to display instrument, show stream
The instantaneous flow and cumulative amount of body.Due to being only directly anchored to housing periphery with one group of induction coil, induction coil is made to generate sense
The part of induction signal（Permanent-magnet steel）Be directly anchored in impeller, the consumption sensor of such prior art due to induction coil with
The part distance limitation of inductive signal is generated, consumption sensor diameter is bigger, and precision is poorer, can not accomplish caliber high-precision
It is required that.
Invention content
It is of the existing technology since induction coil is with generating the part of inductive signal apart from limitation, consumption sensing to solve
Device diameter is bigger, and precision is poorer, the problem of can not accomplishing the requirement of caliber high-precision, and the utility model provides a kind of turbine consumption
Quantity sensor.A kind of turbine consumption sensor of the utility model including housing, is fixed in the housing cylindrical cavity
Impeller and loaded on housing outside induction mechanism, it is characterised in that：Further include worm gearing, the worm-drive
Mechanism includes worm shaft and helical gears, and the worm shaft is coaxially connected with the installation axle of wheel nose, the snail
Bar axis is engaged with helical gears, helical gears connection armature, the sensing of the armature and induction mechanism
Coil is correspondingly arranged, and the socket of the transmission carrier voltage signal of the induction coil and induction mechanism connects.
Further, the induction coil is composed in series by two groups of inductance, and one group is rotation period by armature
Change induced potential variable inductance value inductance, another group be output voltage amplitude fixed inductance value inductance.
Further, air deflector is further included, the air deflector includes preceding air deflector and rear air deflector, the preceding air deflector
It is arranged in the circumferential direction of impeller backside installation axle, the rear air deflector is arranged in the circumferential direction of worm shaft, helical teeth circle
Stud wheel engages in rear air deflector with worm shaft.
Further, the induction coil of the induction mechanism and socket are mounted in protective casing.
Further, the socket makes the electric interfaces between power supply, signal receiver.
The utility model has the advantages that compared with the prior art：
The utility model concentrates on signal conversion in independent induction mechanism, and induction mechanism is small, is easily installed
On various kinds sandwich type element, solves the small limitation of existing consumption sensor aperture.The between centers angle of cut is used as 90 ° of worm-drive machine
Movement and power, stable drive, noise between two axis of structure transmission spatial intersecting is small.When the lead angle of worm screw is less than wheel between cog
Equivalent friction angle when, there is enough intensity, and impact resistance, bearing capacity is higher, high pressure resistant, small, light-weight, pressure
Lose that small, vibration resistance is strong, long lifespan.
High certainty of measurement.Rotation is transferred in induction mechanism by the utility model by worm screw-Helical gear Transmission, sensing
Armature and induction coil spacing are small in mechanism, and not by external interference.By worm screw-Helical gear Transmission structure, by wheel rotation
It transmits and is rotated for armature, driving form is gear drive, can the rotation of impeller accurately be passed to armature to scale, sense
It answers signal caused by coil and flows through the volume direct correlation of fluid, generated inductive signal precision is high, inferred-zero drift,
Range ratio is high, and measurement lower limit is lower, and measurement sensitivity higher, dynamic responding speed is faster.Induction mechanism uses metal shell, inserts
Band function of shielding socket can be selected in seat, and signal input and output strong antijamming capability, stability are high.
The utility model cannot be only used for aircraft fuel system, can also be mounted on various occasions to the flow of multiple fluid into
Row is accurate to be measured.
Description of the drawings
Fig. 1 is a kind of structure diagram of turbine consumption sensor of the utility model.
Fig. 2 is a kind of schematic diagram of the induction coil of turbine consumption sensor of the utility model.
Fig. 3 is a kind of schematic diagram of the preceding air deflector of turbine consumption sensor of the utility model.
In figure：1 housing, air deflector before 2,3 impellers, 4 sockets, 5 armature, 6 induction coils, 7 induction mechanisms, flow direction device after 8,
9 helical gears, 10 worm shafts, 11. tube bodies, 12. guide pins, 13. bearings.
Specific embodiment
To further illustrate the principle and structure of the utility model patent, in conjunction with attached drawing to the embodiment of the utility model
It is described in detail.
Referring to Fig. 1, a kind of turbine consumption sensor of the utility model including housing 1, is fixed on the housing 1 and justifies
Impeller 3 in cylindrical cavity and loaded on the induction mechanism 7 outside housing 1, it is characterised in that：Worm gearing is further included, institute
The worm gearing stated includes worm shaft 10 and helical gears 9, the worm shaft 10 and the installation axle of 3 front end of impeller
Coaxial to be connected, the worm shaft 10 is engaged with helical gears 9, the helical gears 9 connection armature 5, described
Armature 5 and the induction coil 6 of induction mechanism 7 be correspondingly arranged, the transmission carrier wave electricity of the induction coil 6 and induction mechanism 7
The socket 4 of pressure signal connects.
Arrow shows that fluid flows in Fig. 1, fluid by fluid flow through preceding 2 fluid guide groove of air deflector, impeller 3,
It exports and flows out from housing 1 after 8 fluid guide groove of air deflector afterwards, the rotational angular velocity impeller 3 directly proportional to the fluid volume flowed through
Stress rotates under action of a fluid, and helical gears 9 are engaged with the worm shaft 10 that impeller 3 is coaxially connected, and band moving armature 5 is made
Circular motion makes the induction coil 6 for corresponding to armature 5 in circumferential direction periodically cut the magnetic line of force of armature 5, passes through induction coil 6
Alternating voltage is induced, output square-wave signal passes through amplifier（Amplifier is not shown in Fig. 1）Amplification, filtering, shaping output
One group of carrier voltage signal passed by socket 4, the frequency of this signal voltage is directly proportional to the rotating speed of impeller 3, i.e., with
The flow (flow velocity) of fluid is directly proportional, and the rotation of impeller 3 directly or through magnetic coupling drives mechanical count mechanism, and instruction integrating is total
Amount.
1 both ends of housing are used for the inlet ductwork and export pipeline of connecting fluid, and specific mounting means is determined by line characteristics.
The induction coil 6 is composed in series by two groups of inductance, one group be rotation period by armature 5 change sense
The variable inductance value inductance of raw voltage, another group be output voltage amplitude fixed inductance value inductance.
Further, the induction coil 6 of the induction mechanism 7 and socket 4 are mounted in protective casing.
Further, the socket 4 makes the electric interfaces between power supply, signal receiver.
Fig. 2 shows embodiment in, induction coil 6 is composed in series by two groups of inductance, one group be fixed inductance value inductance L1,
L2, one group is variable inductance value inductance L3, L4, the both ends loading sinusoidal voltage A angles of 180 ° of phase difference and B angles after series connection, leaf
3 band 5 period of moving armature of wheel rotates, and changes to 5 rotation period of armature the inductance value of variable inductance, the electricity after the output superposition of B angles
It is carrier signal to press signal, and processing end is needed to demodulate.
Further, air deflector is further included, the air deflector includes preceding air deflector 2 and rear air deflector 8, the preceding water conservancy diversion
Device 2 is arranged in the circumferential direction of 3 backside installation axle of impeller, and the rear air deflector 8 is arranged in the circumferential direction of worm shaft 10, described
Helical gears 9 engage in rear air deflector 8 with worm shaft 10.
Fig. 3 shows a kind of preceding air deflector of turbine consumption sensor of the utility model, and the utility model is used by phase
It is cylindrical with housing 1 that preceding air deflector 2 and rear air deflector 8 to symmetrical impeller 3 form air deflector, preceding air deflector 2 and rear air deflector 8
Cavity is crossed win cooperation and is fixed, and 8 inside dress bearing of preceding air deflector 2 and rear air deflector, worm shaft is placed on the two bearings of rear air deflector 8
Between, the entrance and the port of export of preceding baffle 2 and rear baffle 8 are formed with the axial radian boss of concentricity, and tube body 11
On be formed with symmetrical axial axis and circumferential multiple guide pins 12, the step circles pylon on connecting pin is formed with assembling bearing
13 bearing hole.The guide pin 12 of preceding baffle 2 and rear baffle 8 can make by fluid it is more steady, impeller 3 rotates more steady
Fixed, impeller 3 can discharge suspending sundries in fluid in rotation at any time, and guide pin 12 makes suspending sundries not be wrapped in the leaf of impeller 3
On piece can reduce abrasion, and reliable measurand can also be provided under conditions of notably severe.
Claims (6)
1. a kind of turbine consumption sensor, including housing（1）, be fixed on the housing（1）Impeller in cylindrical cavity
（3）And loaded on housing（1）Outer induction mechanism（7）, it is characterised in that：Worm gearing is further included, the worm screw passes
Motivation structure includes worm shaft（10）And helical gears（9）, the worm shaft（10）With impeller（3）The installation axle of front end is same
Axis is connected, the worm shaft（10）With helical gears（9）Engagement, the helical gears（9）Connect armature
（5）, the armature（5）With induction mechanism（7）Induction coil（6）It is correspondingly arranged, the induction coil（6）With induction machine
Structure（7）Transmission carrier voltage signal socket（4）Connection.
2. a kind of turbine consumption sensor according to claim 1, it is characterised in that：The induction coil（6）By two
Group inductance is composed in series, and one group is to pass through armature（5）Rotation period change the variable inductance value inductance of induced potential, separately
One group be output voltage amplitude fixed inductance value inductance.
3. a kind of turbine consumption sensor according to claim 2, it is characterised in that：The induction mechanism（7）Sense
Answer coil（6）And socket（4）In protective casing.
4. a kind of turbine consumption sensor according to claim 3, it is characterised in that：The socket（4）It makes and electricity
Electric interfaces between source, signal receiver.
5. a kind of turbine consumption sensor according to claim 1, it is characterised in that：Air deflector is further included, described leads
It flows device and includes preceding air deflector（2）With rear air deflector（8）, the preceding air deflector（2）It is arranged on impeller（3）The week of backside installation axle
Upwards, the rear air deflector（8）It is arranged on worm shaft（10）Circumferential direction on, the helical gears（9）In rear water conservancy diversion
Device（8）Interior and worm shaft（10）Engagement.
6. according to any a kind of turbine consumption sensor in claim 2,3 or 4, it is characterised in that：Further include air deflector,
The air deflector includes preceding air deflector（2）With rear air deflector（8）, the preceding air deflector（2）It is arranged on impeller（3）Backside is pacified
In the circumferential direction for filling axis, the rear air deflector（8）It is arranged on worm shaft（10）Circumferential direction on, the helical gears（9）
In rear air deflector（8）Interior and worm shaft（10）Engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721640293.5U CN207556596U (en) | 2017-11-30 | 2017-11-30 | A kind of turbine consumption sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721640293.5U CN207556596U (en) | 2017-11-30 | 2017-11-30 | A kind of turbine consumption sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207556596U true CN207556596U (en) | 2018-06-29 |
Family
ID=62678296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721640293.5U Active CN207556596U (en) | 2017-11-30 | 2017-11-30 | A kind of turbine consumption sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207556596U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843296A (en) * | 2017-11-30 | 2018-03-27 | 四川泛华航空仪表电器有限公司 | A kind of turbine consumption sensor |
| CN110887535A (en) * | 2019-12-04 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Consumption sensor adopting helical gear transmission |
| CN111426361A (en) * | 2020-05-21 | 2020-07-17 | 齐鲁工业大学 | Breaking and anti-blocking integrated device of flow meter |
-
2017
- 2017-11-30 CN CN201721640293.5U patent/CN207556596U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843296A (en) * | 2017-11-30 | 2018-03-27 | 四川泛华航空仪表电器有限公司 | A kind of turbine consumption sensor |
| CN110887535A (en) * | 2019-12-04 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Consumption sensor adopting helical gear transmission |
| CN111426361A (en) * | 2020-05-21 | 2020-07-17 | 齐鲁工业大学 | Breaking and anti-blocking integrated device of flow meter |
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