CN110401433B - Linear Hall element mounting structure of turbofan engine oil supply system - Google Patents
Linear Hall element mounting structure of turbofan engine oil supply system Download PDFInfo
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- CN110401433B CN110401433B CN201910599520.1A CN201910599520A CN110401433B CN 110401433 B CN110401433 B CN 110401433B CN 201910599520 A CN201910599520 A CN 201910599520A CN 110401433 B CN110401433 B CN 110401433B
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- adjusting
- hall element
- plate
- linear hall
- tangential
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
- F02C9/263—Control of fuel supply by means of fuel metering valves
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/90—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of galvano-magnetic devices, e.g. Hall-effect devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a linear Hall element mounting structure of a turbofan engine oil supply system, which comprises a radial adjusting seat, a tangential adjusting plate, a mounting plate, a spacing ring and screws, wherein a magnetic field valve core is sleeved in the spacing ring, the mounting plate is fixedly connected onto the outer peripheral surface of the spacing ring, a waist circular adjusting hole A is formed in the tangential adjusting plate, the length direction axis of the adjusting hole A is parallel to the outer peripheral surface of the spacing ring, the screws penetrate through the adjusting hole A to connect the tangential adjusting plate with the mounting plate, a waist circular adjusting hole B is formed in the radial adjusting seat, the screws penetrate through the adjusting hole B to connect the radial adjusting seat with the tangential adjusting plate, and the linear Hall element is fixedly mounted on the radial adjusting seat. By adopting the technical scheme of the invention, the linear Hall element can be regulated along the circumferential direction and the radial direction of the spacer ring, so that the optimal induction position of the linear Hall element and the magnetic field valve core can be easily found, and the purpose of accurately controlling the fuel quantity output by the fuel supply system of the aircraft turbofan engine is realized.
Description
Technical Field
The invention belongs to the technical field of turbofan engine oil supply systems, and particularly relates to a linear Hall element mounting structure of a turbofan engine oil supply system.
Background
In order to make an aircraft turbofan engine output thrust meeting requirements when the aircraft turbofan engine is operated, the fuel quantity supplied to the aircraft turbofan engine is generally controlled through an aircraft turbofan engine fuel supply system, the aircraft turbofan engine fuel supply system in the prior art comprises a plurality of hydraulic valves, and the fuel quantity supplied by the aircraft turbofan engine fuel supply system is adjusted by controlling the opening and closing of the corresponding hydraulic valves. With the continuous development of integrated circuit technology, in order to accurately control the fuel supply amount of an aircraft turbofan engine fuel supply system, in recent years, an electronic control system composed of linear hall elements is widely used in the aircraft turbofan engine fuel supply system to regulate the fuel supply amount, and the linear hall elements are integrated circuits and can output linearly-changed signal values according to different magnetic field strengths. By installing the permanent magnet on the valve core of the fuel valve, a magnetic field which changes linearly along with the change of the rotation angle of the valve core is generated, a linear output signal is generated in the linear Hall element by the magnetic field, and the opening and closing degree of the valve is accurately judged according to the output value of the signal, namely the fuel supply quantity is controlled.
In application, the linear hall element needs to have the following three conditions to maintain the output signal to have linear characteristics:
1) The magnetic field intensity is moderate, when the magnetic field is too strong, the linear Hall element fails, and when the magnetic field is too weak, the linear Hall element also fails;
2) The magnetic field is linearly distributed, and when the magnetic field distribution is nonlinear, the Hall element output signal is nonlinear;
3) The length of the air gap is moderate, and the output value can be ensured to change according to the linear rule only by installing the Hall element on a reasonable space distance from the permanent magnet.
However, because the linear distribution section of the magnetic field of the permanent magnet has uncertainty due to factors such as magnetization of the permanent magnet and machining, in order to realize accurate control of the fuel quantity, the installation position of the Hall element needs to be correspondingly adjusted so that the linear Hall element is positioned at the optimal induction point of the magnetic field, and the change condition of the magnetic field in the axial rotation process is accurately fed back, so that the fuel quantity of the fuel supply system of the turbofan engine of the airplane is accurately controlled.
Disclosure of Invention
In order to solve the technical problems, the invention provides a linear Hall element mounting structure of an oil supply system of a turbofan engine.
The invention is realized by the following technical scheme.
The invention provides a linear Hall element mounting structure of a turbofan engine oil supply system, which mainly comprises a radial adjusting seat, a tangential adjusting plate, a mounting plate, a spacing ring and a plurality of screws, wherein the radial adjusting seat, the tangential adjusting plate, the mounting plate and the spacing ring are all made of non-magnetic conductive materials, the spacing ring is in a closed circular shape, a magnetic field valve core is sleeved in the spacing ring, the mounting plate is fixedly connected onto the peripheral surface of the spacing ring, the tangential adjusting plate is in a fan-shaped thin plate shape, a waist circular adjusting hole A is formed in the tangential adjusting plate, the longitudinal axis of the adjusting hole A is parallel to the peripheral surface of the spacing ring, the screws penetrate through the adjusting hole A to connect the tangential adjusting plate with the mounting plate, a waist circular adjusting hole B is formed in the radial adjusting seat, the longitudinal axis of the adjusting hole B is parallel to at least one radial line of the spacing ring, the screws penetrate through the adjusting hole B to connect the radial adjusting seat with the tangential adjusting plate, and the linear Hall element is fixedly arranged on the radial adjusting seat.
The arc-shaped outer peripheral surface of the tangential adjusting plate is provided with steps, corresponding cutting grooves are formed in the mounting plate, and the steps and the cutting grooves are in friction fit with each other.
The included angle between the axes of the width directions of the two ends of the adjusting hole A is 25 degrees.
The distance between the axes of the width directions of the two ends of the adjusting hole B is 2mm.
The surface roughness of the mounting plate is less than 1.6 mu m.
The tangential adjustment plate has a surface roughness of less than 1.6 μm.
The radial adjusting seat, the tangential adjusting plate and the spacing ring are made of metal aluminum.
The mounting plate is made of metal copper.
The mounting plate is in a closed-loop thin plate shape.
The linear Hall element is provided with a signal outgoing line which extends outwards, and the signal outgoing line is bound on the radial adjusting seat through a binding wire.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, the corresponding linear Hall element can be respectively adjusted along the circumferential direction or radial direction relative to the spacer ring by adjusting the mounting position of the radial adjusting seat relative to the radial line of the spacer ring and the mounting position of the tangential adjusting plate relative to the peripheral surface of the spacer ring, and the fit clearance between each component can be reduced due to higher surface finish of each structural component, so that the linear Hall element can easily find the optimal sensing position of the magnetic field valve core, the aim of accurately controlling the output fuel quantity of the aircraft turbofan engine fuel supply system is fulfilled, and in addition, the radial adjusting seat, the tangential adjusting plate, the mounting plate and the spacer ring are all made of non-magnetic conductive materials, the interference of external sensing potential on the output signal of the linear Hall element can be effectively prevented, and the precision and the reliability of the output signal of the linear Hall element are improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a front view of the mounting plate of the present invention;
FIG. 4 is a right side view of the mounting plate of the present invention;
FIG. 5 is a front view of the tangential trim plate of the present invention;
FIG. 6 is a right side view of the tangential adjustment plate of the present invention;
FIG. 7 is a front view of the radial adjustment seat of the present invention;
fig. 8 is a right side view of the radial adjustment seat of the present invention.
In the figure: the magnetic field sensor comprises a 1-mounting plate, a 2-radial adjusting seat, a 3-tangential adjusting plate, a 5-screw, a 6-signal outgoing line, a 7-binding line, an 8-linear Hall element, a 9-spacer ring, a 10-magnetic field valve core, an 11-cutting groove, a 21-adjusting hole B, a 31-adjusting hole A and a 32-step.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
As shown in fig. 1 to 8, the invention provides a linear hall element mounting structure of a turbofan engine oil supply system, which comprises a radial adjusting seat 2, a tangential adjusting plate 3, a mounting plate 1, a spacing ring 9 and a plurality of screws 5, wherein the radial adjusting seat 2, the tangential adjusting plate 3, the mounting plate 1 and the spacing ring 9 are all made of non-magnetic conductive materials, the spacing ring 9 is in a closed circular shape, a magnetic field valve core 10 is sleeved in the spacing ring 9, the mounting plate 1 is fixedly connected onto the outer peripheral surface of the spacing ring 9, the tangential adjusting plate 3 is in a fan-shaped thin plate shape, a waist circular adjusting hole a31 is arranged on the tangential adjusting plate 3, the length direction axis of the adjusting hole a31 is parallel to the outer peripheral surface of the spacing ring 9, the screws 5 penetrate through the adjusting hole a31 to connect the tangential adjusting plate 3 with the mounting plate 1, a waist circular adjusting hole B21 is arranged on the radial adjusting seat 2, the length direction axis of the adjusting hole B21 is parallel to at least one radial line of the spacing ring 9, the screws 5 penetrate through the adjusting hole B21 to connect the radial adjusting seat 2 with the tangential adjusting plate 3, and the linear hall element 8 is fixedly mounted on the radial adjusting seat 2.
By adopting the technical scheme of the invention, the corresponding linear Hall element can be respectively adjusted along the circumferential direction or radial direction relative to the spacer ring by adjusting the mounting position of the radial adjusting seat relative to the radial line of the spacer ring and the mounting position of the tangential adjusting plate relative to the peripheral surface of the spacer ring, and the fit clearance between each component can be reduced due to higher surface finish of each structural component, so that the linear Hall element can easily find the optimal sensing position of the magnetic field valve core, the aim of accurately controlling the fuel quantity output by the aircraft turbofan engine fuel supply system is fulfilled, and in addition, the radial adjusting seat, the tangential adjusting plate, the mounting plate and the spacer ring are all made of non-magnetic permeability materials, the interference of external sensing potential on the output signal of the linear Hall element can be effectively prevented, and the precision and reliability of the output signal of the linear Hall element are improved.
Further, the arc-shaped outer circumferential surface of the tangential adjusting plate 3 is provided with a step 32, the mounting plate 1 is provided with corresponding cutting grooves 11, and the step 32 and the cutting grooves 11 are in friction fit with each other. By means of the relative friction fit between the step 32 and the notch 11, when the tangential adjusting plate 3 is adjusted relative to the outer peripheral surface of the spacing ring 9, the tangential adjusting plate 3 is prevented from generating corresponding radial offset relative to the outer peripheral surface of the spacing ring 9, and the purpose of accurate adjustment is achieved.
In addition, it is preferable to adjust the angle between the widthwise axes of both ends of the hole a31 by 25 °. The distance between the width direction axes at both ends of the adjustment hole B21 was 2mm.
Further, the surface roughness of the mounting plate 1 is less than 1.6 μm. The tangential adjusting plate 3 has a surface roughness of less than 1.6 μm. By adopting the technical scheme of the invention, as the surface finish of each structural member is higher, the fit clearance between each structural member can be reduced, so that the linear Hall element can easily find the optimal induction position with the magnetic field valve core, and the aim of accurately controlling the fuel quantity output by the fuel supply system of the aircraft turbofan engine is fulfilled.
In addition, the radial adjustment seat 2, the tangential adjustment plate 3 and the spacer ring 9 are preferably made of metal aluminum. The mounting plate 1 is made of metallic copper. The radial adjusting seat 2, the tangential adjusting plate 3, the mounting plate 1 and the spacing ring 9 are all made of metal materials and have the conductivity but do not have the conductivity, so that the interference of external induced potential on the output signal of the linear Hall element can be effectively prevented, and the precision and the reliability of the output signal of the linear Hall element are improved.
Further, the mounting plate 1 is a closed-loop sheet. The linear hall element 8 is provided with an outwardly extending signal lead-out wire 6, which signal lead-out wire 6 is bound on the radial adjustment seat 2 by means of a binding wire 7. Binding the signal lead-out wires 6 onto the radial adjustment seat 2 by the binding wire 7 can prevent the signal lead-out wires from being damaged in the process of adjusting the mounting position of the linear hall element 8.
Claims (9)
1. A linear hall element mounting structure of turbofan engine oil feeding system, its characterized in that: comprises a radial adjusting seat (2), a tangential adjusting plate (3), a mounting plate (1), a spacing ring (9) and a plurality of screws (5), wherein the radial adjusting seat (2), the tangential adjusting plate (3), the mounting plate (1) and the spacing ring (9) are all made of non-magnetic conductive materials, the spacing ring (9) is in a closed circular shape, a magnetic field valve core (10) is sleeved on the spacing ring (9) in an inner sleeve manner, the mounting plate (1) is fixedly connected onto the peripheral surface of the spacing ring (9), the tangential adjusting plate (3) is in a fan-shaped thin plate shape, a waist-shaped adjusting hole A (31) is arranged on the tangential adjusting plate (3), the length direction axis of the adjusting hole A (31) is parallel to the peripheral surface of the spacing ring (9), the screws (5) penetrate through the adjusting hole A (31) to connect the tangential adjusting plate (3) with the mounting plate (1), a waist-shaped adjusting hole B (21) is arranged on the radial adjusting seat (2), the length direction axis B (21) is fixedly connected with the radial adjusting seat (2) through the radial adjusting plate (9) and at least penetrates through the radial adjusting plate (2), the tangential adjusting plate (3) is characterized in that a step (32) is arranged on the arc-shaped outer circumferential surface of the tangential adjusting plate, a corresponding cutting groove (11) is formed in the mounting plate (1), and the step (32) and the cutting groove (11) are in friction fit relatively to each other.
2. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the included angle between the axes of the width directions of the two ends of the adjusting hole A (31) is 25 degrees.
3. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the distance between the axes of the width directions of the two ends of the adjusting hole B (21) is 2mm.
4. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the surface roughness of the mounting plate (1) is less than 1.6 mu m.
5. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the tangential adjusting plate (3) has a surface roughness of less than 1.6 μm.
6. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the radial adjusting seat (2), the tangential adjusting plate (3) and the spacing ring (9) are made of metal aluminum.
7. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the mounting plate (1) is made of metal copper.
8. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the mounting plate (1) is in a closed-loop thin plate shape.
9. The linear hall element mounting structure of a turbofan engine oil supply system of claim 1, wherein: the linear Hall element (8) is provided with a signal outgoing line (6) which extends outwards, and the signal outgoing line (6) is bound on the radial adjusting seat (2) through a binding line (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599520.1A CN110401433B (en) | 2019-07-04 | 2019-07-04 | Linear Hall element mounting structure of turbofan engine oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910599520.1A CN110401433B (en) | 2019-07-04 | 2019-07-04 | Linear Hall element mounting structure of turbofan engine oil supply system |
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| Publication Number | Publication Date |
|---|---|
| CN110401433A CN110401433A (en) | 2019-11-01 |
| CN110401433B true CN110401433B (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910599520.1A Active CN110401433B (en) | 2019-07-04 | 2019-07-04 | Linear Hall element mounting structure of turbofan engine oil supply system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004333137A (en) * | 2003-04-30 | 2004-11-25 | Sumitomo Metal Mining Co Ltd | Noncontact magnetic potentiometer and its manufacturing method |
| CN102439410A (en) * | 2009-07-31 | 2012-05-02 | 株式会社鹭宫制作所 | Pressure sensor and method of adjusting the same |
| CN203445753U (en) * | 2013-08-23 | 2014-02-19 | 浙江尤里卡机电有限公司 | Motor with external paster type Hall |
| CN107017752A (en) * | 2016-01-27 | 2017-08-04 | 台州优松机电科技有限公司 | A kind of method of permanent magnetic brushless magnetic induction part positioning |
| CN109639062A (en) * | 2018-12-29 | 2019-04-16 | 锦霸工贸有限公司 | A kind of sensor fixing structure of deep-well pump motor |
-
2019
- 2019-07-04 CN CN201910599520.1A patent/CN110401433B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004333137A (en) * | 2003-04-30 | 2004-11-25 | Sumitomo Metal Mining Co Ltd | Noncontact magnetic potentiometer and its manufacturing method |
| CN102439410A (en) * | 2009-07-31 | 2012-05-02 | 株式会社鹭宫制作所 | Pressure sensor and method of adjusting the same |
| CN203445753U (en) * | 2013-08-23 | 2014-02-19 | 浙江尤里卡机电有限公司 | Motor with external paster type Hall |
| CN107017752A (en) * | 2016-01-27 | 2017-08-04 | 台州优松机电科技有限公司 | A kind of method of permanent magnetic brushless magnetic induction part positioning |
| CN109639062A (en) * | 2018-12-29 | 2019-04-16 | 锦霸工贸有限公司 | A kind of sensor fixing structure of deep-well pump motor |
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| Publication number | Publication date |
|---|---|
| CN110401433A (en) | 2019-11-01 |
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