CN104677530B - Airscrew stress remote-measuring equipment - Google Patents
Airscrew stress remote-measuring equipment Download PDFInfo
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- CN104677530B CN104677530B CN201310639084.9A CN201310639084A CN104677530B CN 104677530 B CN104677530 B CN 104677530B CN 201310639084 A CN201310639084 A CN 201310639084A CN 104677530 B CN104677530 B CN 104677530B
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Abstract
The present invention relates to airscrew stress remote-measuring equipment, including mechanical parts and electricity piece；Mechanical parts are stress remote measurement disk 1, and it includes module mounting hole 2, power supply module mounting groove 3, a circle wiring groove 4, bolt mounting holes 5, lightening grooves 6 and dynamic balancing screw mounting hole 7；Electric component includes power supply module 8, signal processing module 9, Voltage stabilizing module 10, transmitter module 11 and PCB 12；Above-mentioned electric component is arranged in stress remote measurement disk and is encapsulated, stress remote measurement disk component is constituted；Antenna includes transmitting antenna 13 and reception antenna 14, and both of which keeps mutual distance to be less than 30mm in annular shape；Reception antenna is transmitted the signal come in and handled by receiver, is ultimately sent to data acquisition computer.Compact conformation of the present invention, it is easy to use, safeguard simple, manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of propeller stress measurement technology, it is particularly suitable for use on airscrew propeller hub, adopts
Signal transmission is carried out with radio close coupled stress telemetry, to setting that the propeller stress under rotation status is measured
It is standby.
Background technology
According to China Administration of Civil Aviation's seaworthiness clause relevant regulations and requirement, a kind of new airscrew will be obtained
Type certificate, must just carry out the bench test of propeller stress measurement.Because propeller belongs to revolving part, therefore stress is surveyed
The technological difficulties of amount are that signal is transmitted.Early signal transmission is more using the contact side such as brush ring electrical feedthrough and mercury electrical feedthrough
Method.Brush ring formula electrical feedthrough is influenceed by contact, brush ring material and the structure type brushed between ring, easily produces abrasion
With larger electrical noise, it is complicated.The shortcoming of mercury electrical feedthrough is that mercury may be between rotor under high speed rotational case
There is space, cause jitter；Mercury disturbs and because being aoxidized caused by friction, can all cause contact resistance unstable
It is fixed.Mercury and its steam are harmful, and certain safeguard procedures are taken when using.
The content of the invention
The purpose of the present invention is：There is provided one kind utilizes radio close coupled stress telemetry to carry out signal transmission, peace
On propeller hub, the equipment for realizing propeller stress measurement under rotation status, to overcome contact signal transmission side
The shortcoming of method.
The technical scheme is that：Airscrew stress remote-measuring equipment, including stress remote measurement disk component, antenna and connect
Receipts machine；Stress remote measurement disk component is ring-type, on propeller hub, including mechanical parts and electricity piece；Mechanical parts are stress
Remote measurement disk 1, it includes module mounting hole 2, power supply module mounting groove 3, a circle wiring groove 4, bolt mounting holes 5, lightening grooves 6 and dynamic
Mass screw mounting hole 7；Electric component include power supply module 8, signal processing module 9, Voltage stabilizing module 10, transmitter module 11 and
PCB 12；Above-mentioned electric component is arranged in stress remote measurement disk and is encapsulated, stress remote measurement disk group is constituted
Part；Antenna includes transmitting antenna 13 and reception antenna 14, and both of which keeps mutual distance to be less than 30mm in annular shape；Receive
Reception antenna is transmitted the signal come in and handled by machine, is ultimately sent to data acquisition computer.
Strain gauge signal on propeller is introduced into stress remote-measuring equipment, stress remote-measuring equipment is by strain gauge signal
Reason, is transferred to transmitting antenna 13, and signal is carried and is transferred to reception antenna 14 by transmitting antenna 13 with wireless system, finally receives day
Line 14 transmits a signal to receiver.
Stress remote measurement disk 1 is discoid, and its outside dimension and thickness are determined by installing space；Four module mounting holes 2 are in
Symmetrical, its external diameter and depth are determined by module size；Two battery settling grooves 3 are symmetrical, and its size is by battery size
It is determined that；Wiring groove 4 is annular in shape, is arranged in the inner side of stress remote measurement disk 1.Four quantity of bolt mounting holes 5 and position match with propeller hub,
And be uniformly distributed, stress remote measurement disk 1 is exactly based on this four installation bolts and is connected with propeller hub.Lightening grooves 6 are symmetrical at two
In the both sides of bolt mounting holes 5,36 dynamic balancing screw mounting holes 7 are evenly arranged in the outside of stress remote measurement disk 1.
Power supply module 8 saves dry cell using two, and often economize on electricity cell voltage 3.6V, capacity 5.5Ah, maximum discharge current
1300mA, in real work, the operating voltage less than 5V is provided for equipment；The quantity of Signal-regulated kinase 9 is two, Mei Gemo
Block contains eight port numbers, and strain signal is amplified, while providing 5V excitation to electric bridge；The quantity of Voltage stabilizing module 10 is one,
It is 6V direct currents by the direct current conditioning of input, is used as the power supply of Signal-regulated kinase 9；The quantity of transmitter module 11 is one,
After compliance voltage signal frequency modulation, transmitting antenna 13 is transferred to.
The function of PCB 12 has three parts：First, it is that power module of voltage regulation 10 provides input electricity with two pieces of dry cells
Pressure, and the loop is controlled with an external switch；Second, bridge output signal and bridge power supply signal feeding are sent out
Penetrate machine module 11；3rd, the fixed resistance in reasonable Arrangement bridge collectively constitutes 2 half-bridges, 5 1/4 bridges with foil gauge.For
The function is completed, PCB 12 is designed as four layers, and top layer and low layer are dedicated for the fixed resistance in arrangement electric bridge, two layers
Powered routing layer for bridge, three layers are signal lead layer.
Transmitting antenna 13 is arranged on propeller hub, and is rotated with propeller；Reception antenna 14, which is arranged on, to be started
On machine casing, remains stationary is motionless.
It is an advantage of the invention that：Due to using radio close coupled stress remote measurement non-contact type signal transmission method, letter
Number transmission precision height, has good stability, strong interference immunity overcomes the shortcoming of contact method jitter.Stress remote measurement
The installation of disk and antenna on propeller hub is connected by screw bolts, and repacking is simple and convenient, and workload is few, and cost is low, overcomes contact
The complicated shortcoming of method repacking.Stress remote measurement disk is manufactured using aluminum alloy material, and light weight, cost is low, and its structure is by reasonable
Design and optimization, strength test shows that twice of propeller spin load can be born, with enough intensity.Whole equipment knot
Structure is compact, easy to use, safeguards simple, manufacturing cost is low.
Brief description of the drawings
Accompanying drawing 1 is the composition schematic diagram of propeller stress remote-measuring equipment；
Accompanying drawing 2 is the front view of stress remote measurement disk component；
Accompanying drawing 3 is the rearview of stress remote measurement disk component；
Accompanying drawing 4 is transmitting and reception antenna.
Embodiment
Referring to Fig. 1, airscrew stress remote-measuring equipment, including stress remote measurement disk component, antenna and receiver；Stress is distant
It is ring-type to survey disk component, on propeller hub, including mechanical parts and electricity piece；Mechanical parts are stress remote measurement disk 1, and it is wrapped
Mounting hole containing module 2, power supply module mounting groove 3, a circle wiring groove 4, bolt mounting holes 5, lightening grooves 6 and dynamic balancing screw are installed
Hole 7；Electric component includes power supply module 8, signal processing module 9, Voltage stabilizing module 10, transmitter module 11 and PCB 12；
Above-mentioned electric component is arranged in stress remote measurement disk and is encapsulated, stress remote measurement disk component is constituted；Antenna includes hair
Antenna 13 and reception antenna 14 are penetrated, both of which keeps mutual distance to be less than 30mm in annular shape；Receiver passes reception antenna
It is input into the signal come to be handled, is ultimately sent to data acquisition computer.
Referring to Fig. 2 and Fig. 3, mechanical parts-stress remote measurement disk 1 is discoid, and its outside dimension and thickness are determined by installing space
It is fixed.Four module mounting holes 2 are symmetric, and its external diameter and depth are determined by module size.Two battery settling grooves 3 symmetrically divide
Cloth, its size is determined by battery size.Wiring groove 4 is annular in shape, is arranged on the inside of stress remote measurement disk.Four bolt mounting holes 5 are counted
Amount and position match with propeller hub, and are uniformly distributed, and stress remote measurement disk 1 is exactly based on this four installation bolts and is connected with propeller hub.
Lightening grooves 6 are symmetrically distributed in the both sides of bolt mounting holes 5 at two, and it is distant that 36 dynamic balancing screw mounting holes 7 are evenly arranged in stress
Survey the outside of disk 1.
Power supply module 8 saves dry cell using two, and often economize on electricity cell voltage 3.6V, capacity 5.5Ah, maximum discharge current
1300mA, in real work, the operating voltage less than 5V is provided for equipment.The quantity of Signal-regulated kinase 9 is two, Mei Gemo
Block contains eight port numbers, and strain signal is amplified, while providing 5V excitation to electric bridge.The quantity of Voltage stabilizing module 10 is one,
It is 6V direct currents by the direct current conditioning of input, is used as the power supply of Signal-regulated kinase 9.The quantity of transmitter module 11 is one,
After compliance voltage signal frequency modulation, transmitting antenna 13 is transferred to.
The function of PCB 12 mainly has three parts：First, it is that power module of voltage regulation 10 provides input with two pieces of dry cells
Voltage, and the loop is controlled with an external switch；Second, bridge output signal and bridge power supply signal are sent into
Transmitter module；3rd, the fixed resistance in reasonable Arrangement bridge collectively constitutes 2 half-bridges, 5 1/4 bridges with foil gauge.For
Function above is completed, pcb board is designed as four layers, and top layer and low layer are dedicated for the fixed resistance in arrangement electric bridge, and two layers are bridge
Road powers routing layer, and three layers are signal lead layer.
Above-mentioned two batteries, four modules and circuit board are symmetrically arranged in stress remote measurement disk 1, and before and after
Cover plate is encapsulated, and just constitutes stress remote measurement disk component.
Referring to Fig. 4, antenna includes transmitting antenna 13 and reception antenna 14.According to the free space of propeller, transmitting antenna
13 and reception antenna 14 be diameter identical annular, between the two distance be more than 30mm, aerial signal frequency range is
200MHz to 300MHz.The outer shroud of loop aerial is the ring of a closing, and width is about 1.5cm, can improve electromagnetic compatibility ring
Border.Inner ring is work antenna, and width is about 1mm.The gap of inner and outer ring is about 1mm.Transmitting antenna 13 and the electricity consumption of reception antenna 14
Sheet material path is made, and for proof strength and installation, specially devises antenna holder.Transmitting antenna 13 passes through four installation bolts
Fixed on propeller hub, rotated with propeller.Reception antenna 14 is then fixed on the casing of engine by switching support.
Claims (7)
1. airscrew stress remote-measuring equipment, it is characterised in that：The stress remote-measuring equipment includes stress remote measurement disk component, day
Line and receiver；Stress remote measurement disk component is ring-type, on propeller hub, including mechanical parts and electric component；Machinery
Part is stress remote measurement disk (1), and it includes module mounting hole (2), power supply module mounting groove (3), a circle wiring groove (4), bolt peace
Fill hole (5), lightening grooves (6) and dynamic balancing screw mounting hole (7)；Electric component includes power supply module (8), Signal-regulated kinase
(9), power module of voltage regulation (10), transmitter module (11) and PCB (12)；Above-mentioned electric component is arranged in stress
Remote measurement disk is interior and is encapsulated, and constitutes stress remote measurement disk component；Antenna includes transmitting antenna (13) and reception antenna (14), two
Person keeps mutual distance to be less than 30mm in annular shape；Reception antenna is transmitted the signal come in and handled by receiver, most
Data acquisition computer is sent to eventually.
2. airscrew stress remote-measuring equipment as claimed in claim 1, it is characterised in that：By the strain gauge letter on propeller
Number stress remote-measuring equipment is introduced, stress remote-measuring equipment handled strain gauge signal, is transferred to transmitting antenna (13), launches day
Signal is carried and is transferred to reception antenna (14) by line (13) with wireless system, and final reception antenna (14) transmits a signal to reception
Machine.
3. airscrew stress remote-measuring equipment as claimed in claim 1, it is characterised in that：Stress remote measurement disk (1) is disk
Shape, its outside dimension and thickness are determined by installing space；Four module mounting holes (2) are symmetric, its external diameter and depth by
Module size is determined；Two power supply module mounting grooves (3) are symmetrical, and its size is determined by battery size；Wiring groove (4) is in ring
Shape, is arranged on the inside of stress remote measurement disk (1)；Four bolt mounting holes (5) quantity and position match with propeller hub, and are uniformly distributed,
Stress remote measurement disk (1) is exactly based on this four installation bolts and is connected with propeller hub；Lightening grooves (6) are symmetrically distributed in bolt peace at two
The both sides of hole (5) are filled, 36 dynamic balancing screw mounting holes (7) are evenly arranged in the outside of stress remote measurement disk (1).
4. airscrew stress remote-measuring equipment as claimed in claim 1, it is characterised in that：Power supply module (8) is saved using two
Dry cell, often economize on electricity cell voltage 3.6V, capacity 5.5Ah, maximum discharge current 1300mA, in real work, is provided for equipment
Operating voltage less than 5V；Signal-regulated kinase (9) quantity is two, and each module contains eight port numbers, by strain signal
Amplification, while providing 5V excitation to electric bridge；Voltage stabilizing module (10) quantity is one, is 6V direct currents by the direct current conditioning of input
Electricity, is used as the power supply of Signal-regulated kinase (9)；Transmitter module (11) quantity is one, after compliance voltage signal frequency modulation, is passed
It is defeated by transmitting antenna (13).
5. airscrew stress remote-measuring equipment as claimed in claim 1, it is characterised in that：PCB (12) function has
Three parts：First, it is that power module of voltage regulation (10) provides input voltage with two pieces of dry cells, and with an external switch to this time
Road is controlled；Second, bridge output signal and bridge power supply signal are sent into transmitter module (11)；3rd, reasonable cloth
The fixed resistance in bridge is put, 2 half-bridges, 5 1/4 bridges are collectively constituted with foil gauge.
6. the airscrew stress remote-measuring equipment as described in claim 1 or 5, it is characterised in that：PCB (12) is designed
For four layers, top layer and low layer are dedicated for the fixed resistance in arrangement electric bridge, and two layers are that bridge is powered routing layer, and three layers are signal
Routing layer.
7. airscrew stress remote-measuring equipment as claimed in claim 1, it is characterised in that：Transmitting antenna (13) is arranged on spiral shell
Revolve on oar propeller hub, and rotated with propeller；Reception antenna (14) is arranged on engine crankcase, and remains stationary is motionless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639084.9A CN104677530B (en) | 2013-11-28 | 2013-11-28 | Airscrew stress remote-measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310639084.9A CN104677530B (en) | 2013-11-28 | 2013-11-28 | Airscrew stress remote-measuring equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104677530A CN104677530A (en) | 2015-06-03 |
| CN104677530B true CN104677530B (en) | 2017-09-22 |
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ID=53312883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310639084.9A Active CN104677530B (en) | 2013-11-28 | 2013-11-28 | Airscrew stress remote-measuring equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005221410A (en) * | 2004-02-06 | 2005-08-18 | Honda Motor Co Ltd | Pressure distribution measuring system |
| CN101498575A (en) * | 2007-12-11 | 2009-08-05 | 汉密尔顿毕克布兰德斯有限公司 | Apparatus for measuring stresses on rotating blades and methods thereof |
| CN103048077A (en) * | 2012-12-21 | 2013-04-17 | 中国船舶重工集团公司第七一九研究所 | Dynamic stress monitoring device of propeller main shaft |
| CN203224324U (en) * | 2012-12-21 | 2013-10-02 | 中国船舶重工集团公司第七一九研究所 | Propeller main shaft dynamic stress monitoring device |
| CN103398812A (en) * | 2013-07-25 | 2013-11-20 | 中国航天空气动力技术研究院 | Propeller coaxial force measuring device |
-
2013
- 2013-11-28 CN CN201310639084.9A patent/CN104677530B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005221410A (en) * | 2004-02-06 | 2005-08-18 | Honda Motor Co Ltd | Pressure distribution measuring system |
| CN101498575A (en) * | 2007-12-11 | 2009-08-05 | 汉密尔顿毕克布兰德斯有限公司 | Apparatus for measuring stresses on rotating blades and methods thereof |
| CN103048077A (en) * | 2012-12-21 | 2013-04-17 | 中国船舶重工集团公司第七一九研究所 | Dynamic stress monitoring device of propeller main shaft |
| CN203224324U (en) * | 2012-12-21 | 2013-10-02 | 中国船舶重工集团公司第七一九研究所 | Propeller main shaft dynamic stress monitoring device |
| CN103398812A (en) * | 2013-07-25 | 2013-11-20 | 中国航天空气动力技术研究院 | Propeller coaxial force measuring device |
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| Publication number | Publication date |
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| CN104677530A (en) | 2015-06-03 |
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