CN118424535B - Axial force measuring device and measuring method of integrated bearing - Google Patents
Axial force measuring device and measuring method of integrated bearing Download PDFInfo
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- CN118424535B CN118424535B CN202410879360.7A CN202410879360A CN118424535B CN 118424535 B CN118424535 B CN 118424535B CN 202410879360 A CN202410879360 A CN 202410879360A CN 118424535 B CN118424535 B CN 118424535B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 39
- 238000009434 installation Methods 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims 2
- 238000000691 measurement method Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 206010070834 Sensitisation Diseases 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008313 sensitization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
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- 230000010354 integration Effects 0.000 description 1
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- 230000036316 preload Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
- G01L5/161—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance
- G01L5/1627—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
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Abstract
The invention discloses an axial force measuring device and an axial force measuring method of an integrated bearing, wherein the axial force measuring device comprises a measuring unit for measuring the axial force of the integrated bearing, the measuring unit comprises a mounting plate for connecting the integrated bearing, a supporting plate arranged on the mounting plate, a sensitive element arranged along the radial direction of the integrated bearing and a strain gauge arranged on the sensitive element, the first end of the sensitive element is connected with the supporting plate, the second end of the sensitive element is used for bearing the axial force of the integrated bearing, the two strain gauges are arranged at intervals along the axial direction of the integrated bearing and are respectively arranged on two opposite side surfaces of the sensitive element, the integrated bearing comprises an elastic supporting structure, the mounting plate is connected with the elastic supporting structure through a locking element, the structure is simple, the testing precision can be remarkably improved, the original structure of the elastic supporting structure is not required to be changed in the testing process, and the axial force measuring test of a small engine adopting the integrated bearing is suitable for the axial force measuring test of the integrated bearing.
Description
Technical Field
The invention relates to the technical field of aeroengines, in particular to an axial force measuring device of an integrated bearing. Furthermore, the invention also relates to a measuring method comprising an axial force measuring device using the integrated bearing.
Background
The axial force measurement test is an important test item in the development process of the aero-engine. The axial force is measured in an actual measurement mode in the working process of the engine to verify whether the peak load of the axial force is consistent with the service life requirement of the thrust bearing or not, and premature fatigue of the bearing caused by overlarge axial force is prevented; and verifying whether the axial force commutation of the rotor only occurs when no large axial load exists, and preventing the bearing from being scratched due to light-load skidding caused by the axial force direction change. The bearing is ensured to work safely, and the obtained axial force data can also be used as a load for analyzing the strength of the bearing support part. With the progress of engine design technology, in order to shorten the axial dimension and reduce the number of parts, vibration problems and the like, more and more engines adopt a structure form of integrating a spring support and a bearing outer ring.
The structure is designed in an optimized mode, and meanwhile, the problem of axial force measurement is brought, and the following aspects are mainly presented:
On one hand, the outer ring of the bearing cannot move freely in the axial direction, so that the axial force measurement cannot be performed in the traditional force measuring ring structure although the test precision is high; on the other hand, the method for sticking the strain gauge on the spring support is commonly used at present, axial and radial loads exist simultaneously in the working process of the engine, the axial load is required to be separated in the subsequent analysis, the strain signal measured by the strain gauge is a composite load due to the working principle of the strain gauge, the subsequent separation error is larger, and the method is only suitable for the condition that the axial force range of some large engines is more than 100KN, and the axial force within 20KN can not be measured basically and accurately; in addition, in order to measure the axial force, the elastic support structure is reformed to meet the measurement requirement, but at the beginning of the design of the engine, the requirements of rotor dynamics are met for the structural form and the rigidity design of the elastic support, the original structure of the elastic support is changed for measuring the axial force in the later period, the support rigidity and the axial dimension of the elastic support are changed, the vibration problem is caused when the elastic support is light, the supporting rigidity of the supporting structure of the engine is insufficient in the test run process, and the rotor system is damaged when the supporting rigidity of the supporting structure of the engine is heavy.
Disclosure of Invention
The invention provides an axial force measuring device of an integrated bearing, which aims to solve the technical problem that the axial force of a small engine adopting the integrated bearing is difficult to accurately measure in the prior art.
According to one aspect of the invention, there is provided an axial force measuring device for an integrated bearing, including a measuring unit for measuring an axial force of the integrated bearing, the measuring unit includes a mounting plate for connecting the integrated bearing, a support plate disposed on the mounting plate, a sensing member disposed along a radial direction of the integrated bearing, and a strain gauge disposed on the sensing member, a first end of the sensing member is connected with the support plate, a second end of the sensing member is used for bearing the axial force of the integrated bearing, the two strain gauges are disposed at intervals along an axial direction of the integrated bearing and are disposed on two opposite sides of the sensing member, the integrated bearing includes an elastic support structure, the elastic support structure includes a spring support mounting edge, spring support mounting holes uniformly distributed along a circumferential direction of the spring support mounting edge are formed in the spring support mounting edge, through holes adapted to the spring support mounting holes are formed in the mounting plate, and the mounting plate is connected with the elastic support structure through locking members.
Further, windows are formed in the upper cylindrical surface of the elastic support structure, elastic strips which are distributed along the axial direction of the elastic support structure are formed between two adjacent windows, and the second end of the sensitization piece stretches into the windows and is connected with the elastic support structure.
Further, the distance between the sensitive element and the adjacent two elastic strips is equal.
Further, the number of the measuring units is 4n, the strain gauges are uniformly distributed along the circumferential direction of the elastic support structure, and the strain gauges form a Wheatstone full bridge and/or a Wheatstone half bridge through wiring.
Further, the strain gauge is arranged on one end of the sensitive element connected with the supporting plate.
Further, the support plate is arranged along the axial direction of the integrated bearing.
Further, the thickness of the sensitive element is 0.2-0.5 mm.
According to another aspect of the present invention, there is also provided an axial force measuring method of an integrated bearing, which uses the axial force measuring device of an integrated bearing, comprising the steps of:
S1, a locking piece penetrates through a through hole in a mounting plate and a spring support mounting hole on a spring support mounting edge, the mounting plate and an elastic support structure are mounted on an engine case, and a sensitive piece stretches into the middle position of a fenestration and is connected with the elastic support structure;
s2, four measuring units are first measuring groups, one measuring unit is arranged at each interval position along the circumferential direction of the elastic supporting structure, eight strain gauges form a Wheatstone full bridge through wiring, and output lines of the Wheatstone full bridge are connected into strain gauges;
s3, after the four measuring units are installed and assembled, simulating the stress condition on the engine, applying a load to the central axial direction along the elastic supporting structure, recording corresponding output strain values, and performing linear fitting on the axial load and the output strain values by adopting a least square method to obtain a coefficient A of axial force and strain;
A=y/x；
Wherein A is the calibration coefficient of axial force and strain, y is the axial load, and the unit is cow; x is the corresponding output strain amount, and the unit is mu epsilon.
S4, in the engine test process, acquiring an output strain value, and multiplying the output strain value by a coefficient A to obtain the axial force on the elastic support structure.
Further, the four measuring units are second measuring groups, the mounting mode of the second measuring groups is the same as that of the first measuring groups, the mounting positions are staggered with the first measuring groups, two strain gauges on each measuring unit form four Wheatstone half-bridges through wiring, output lines of the Wheatstone half-bridges are connected into strain gauges, output strain values of each measuring unit and applied axial loads are calibrated respectively to obtain calibration coefficients B1-B4 of each measuring unit, the strain values of each measuring device are measured in an engine working state, and the axial loads of the mounting positions of each measuring unit of the second measuring groups can be obtained by multiplying the corresponding coefficients B1-B4.
Further, the strain gauge can measure 5-20 mu epsilon after the sensitive element is connected with the elastic supporting structure.
The invention has the following beneficial effects:
the invention relates to an axial force measuring device of an integrated bearing, which comprises a mounting plate, a supporting plate, a sensitive element and two strain gauges, wherein the mounting plate is connected with a spring supporting mounting edge of an elastic supporting structure through a locking element, the two strain gauges are adhered to the upper side surface and the lower side surface of the sensitive element, the sensitive element is arranged along the radial direction of the elastic supporting structure and is connected with the elastic supporting structure, when the elastic supporting structure applies axial load, under the action of the axial force, the sensitive element only deforms axially, the strain quantity of the sensitive element when the sensitive element deforms is measured by using a strain gauge, the axial force on the elastic supporting structure can be rapidly obtained according to a calibration coefficient A, the sensitive element only receives the action of the axial load, the error caused by the radial load can be avoided, and the tensile strain gauge and the other compressive strain gauge on the sensitive element can obviously improve the test precision.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic structural view of an axial force measuring device of an integrated bearing according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of a measuring unit according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of the structure of a first measurement set according to a preferred embodiment of the present invention;
FIG. 4 is an installation position intent of a first measurement set of a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of the wiring of the first measurement set forming a Wheatstone full bridge in accordance with a preferred embodiment of the present invention;
FIG. 6 is a graph showing the relationship between calibration coefficients A in accordance with a preferred embodiment of the present invention;
FIG. 7 is a schematic diagram of the structure of a second measurement set according to a preferred embodiment of the present invention;
FIG. 8 is an installation position intent of a second measurement set in accordance with a preferred embodiment of the present invention;
Fig. 9 is a schematic diagram of the wiring of the second measurement set constituting a wheatstone half bridge of the preferred embodiment of the present invention.
Legend description:
1. A mounting plate; 11. a through hole; 2. a support plate; 3. a sensitive member; 4. strain gauges; 5. a locking member; 100. an elastic support structure; 101. a spring support mounting edge; 102. a spring mounting hole; 103. windowing; 104. and (5) spring strips.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.
Referring to fig. 1 and 2, the axial force measuring device of the integrated bearing of the present embodiment includes a measuring unit for measuring an axial force of the integrated bearing, the measuring unit includes a mounting plate 1 for connecting the integrated bearing, a support plate 2 disposed on the mounting plate 1, a sensing element 3 disposed along a radial direction of the integrated bearing, and a strain gauge 4 disposed on the sensing element 3, a first end of the sensing element 3 is connected with the support plate 2, a second end is used for bearing the axial force of the integrated bearing, the two strain gauges 4 are disposed along an axial direction of the integrated bearing at intervals, and are disposed on two opposite sides of the sensing element 3, the integrated bearing includes an elastic support structure 100, the elastic support structure 100 includes an elastic support mounting edge 101, elastic support mounting holes 102 uniformly distributed along a circumferential direction of the elastic support mounting edge 101 are provided on the mounting plate 1, through holes 11 adapted to the elastic support mounting holes 102 are provided on the mounting plate 1, and the mounting plate 1 is connected with the elastic support structure 100 through a locking member 5.
According to the axial force measuring device of the integrated bearing, one mounting plate 1, one supporting plate 2, one sensitive element 3 and two strain gauges 4 are one measuring unit, the mounting plate 1 is connected with the elastic supporting mounting edge 101 of the elastic supporting structure 100 through the locking element 5, the two strain gauges 4 are adhered to the upper side surface and the lower side surface of the sensitive element 3, the sensitive element 3 is distributed along the radial direction of the elastic supporting structure 100 and is connected with the elastic supporting structure 100, when the elastic supporting structure 100 applies axial load, under the action of the axial force, the sensitive element 3 only deforms axially, the strain quantity of the sensitive element 3 during deformation is measured by the strain gauges, the axial force on the elastic supporting structure 100 can be obtained quickly according to the calibration coefficient A, the sensitive element 3 only receives the action of the axial load, errors caused by the radial load can be avoided, the strain gauges on the sensitive element 3 and the other pressed strain gauges can be remarkably improved, the structure is simple, the original structure of the elastic supporting structure 100 does not need to be changed in the test process, and the axial force measuring test of the small-sized engine adopting the integrated bearing is suitable for the axial force measuring test of the integrated bearing.
In this embodiment, the upper cylindrical surface of the elastic supporting structure 100 is provided with windows 103, and elastic strips 104 arranged along the axial direction of the elastic supporting structure 100 are formed between two adjacent windows 103, and the second end of the sensitization element 3 extends into the windows 103 and is connected with the elastic supporting structure 100; the sensing element 3 extends into the fenestration 103 and is connected to the flexible support structure 100 without changing the original structure of the flexible support structure 100.
In this embodiment, the distance between the sensing element 3 and the adjacent two elastic strips 104 is equal, and the axial displacement of the middle position of the window 103 between the two adjacent elastic strips 104 is maximum under the action of the axial force through finite element calculation, so that the sensing element is circumferentially arranged at the middle position of the cavity of the adjacent elastic strips to measure the maximum axial force.
In this embodiment, the number of the measurement units is 4n (n is a positive integer), and the measurement units are uniformly distributed along the circumferential direction of the elastic support structure 100, wherein four measurement units are a first measurement group, eight strain gauges 4 of the first measurement group form a wheatstone full bridge through wiring, and the advantage of adopting the full bridge wiring is that the average load born by the integrated bearing can be measured, the influence of axial unbalanced load in the working process of the engine can be eliminated, and the measurement accuracy is improved; the four measuring units are a second measuring group, and eight strain gauges 4 of the second measuring group form a Wheatstone half bridge through wiring so as to test whether unbalanced load exists in the elastic supporting structure 100; it will be appreciated that if the flexible support structure 100 is stiffer and provided with mounting conditions, the number of measurement units can be increased (by a factor of 4) to form a new wheatstone full bridge for improved sensitivity.
In this embodiment, the strain gauge 4 is disposed at one end of the sensing element 3 connected to the supporting plate 2, and the root of the sensing element 4 (the connection with the sensing element 3) is strained the largest through stress analysis, and the strain gauge 4 is mounted on both the upper and lower surfaces of the root of the sensing element 4, so as to improve the measurement sensitivity.
In this embodiment, the backup pad 2 is laid along the axial of integration bearing, and mounting panel 1 and backup pad 2 are integrated into one piece structure, simple structure, processing convenience.
In the embodiment, the thickness of the sensitive element 3 is 0.2-0.5 mm, and the sensitive element 4 is of a thin sheet structure; if the thickness of the sensitive element 3 is smaller than 0.2mm, the root of the sensitive element 3 is stressed greatly because of the cantilever structure, and the strength is not satisfied; if the thickness of the sensing element 3 is larger than 0.5mm, the strain quantity of the root part of the sensing element 3 is small, and the testing precision is not high.
The embodiment provides an axial force measuring method of an integrated bearing, which comprises the following steps:
s1, the locking piece 5 passes through the through hole 11 on the mounting plate 1 and the spring mounting hole 102 on the spring mounting edge 101, the mounting plate 1 and the elastic supporting structure 100 are mounted on the engine casing together, the sensitive piece 3 stretches into the right middle position of the fenestration 103 and is connected with the elastic supporting structure 100,
S2, as shown in fig. 3 and 4, four measuring units a, b, c and d are a first measuring group, the measuring unit a is arranged opposite to the measuring unit c, the measuring unit b is arranged opposite to the measuring unit d, one measuring unit is arranged at each 90-degree interval along the circumferential direction of the elastic supporting structure 100, as shown in fig. 5, eight strain gauges 1# to 8# form a Wheatstone full bridge through wiring, four wires of a mark ①、②、③、④ are connected into a strain gauge in a full bridge mode,
S3, after the four measuring units are installed and assembled, simulating the stress condition on the engine, applying a load to the central axial direction along the elastic support structure 100, recording corresponding output strain values, and performing linear fitting on the axial load and the output strain values by adopting a least square method to obtain a coefficient A of axial force and strain, as shown in FIG. 6;
A=y/x；
wherein A is the calibration coefficient of axial force and strain, y is the axial load, and the unit is cow; x is the corresponding output strain quantity, and the unit is mu epsilon;
s4, in the engine test process, acquiring an output strain value, and multiplying the output strain value by the coefficient A to obtain the axial force on the elastic support structure 100.
As shown in fig. 7 and 8, in this embodiment, the method further includes S5, four measurement units e, f, g and h are a second measurement group, the installation mode of the second measurement group is the same as that of the first measurement group, the installation position of the second measurement group is staggered with that of the first measurement group, the measurement unit e is arranged opposite to the measurement unit g, the measurement unit f is arranged opposite to the measurement unit g, as shown in fig. 9, eight strain gauges from 1# to 8# form four wheatstone half-bridges through wiring, the lead wires ①②、③④、⑤⑥、⑦⑧ are connected into a strain gauge in a half-bridge mode, the output strain value of each measurement unit and the applied axial load are calibrated respectively to obtain calibration coefficients B1 to B4 of each measurement unit, the strain value of each measurement device is measured in an engine working state, and the axial load of the installation position of each measurement unit can be obtained by multiplying the corresponding coefficients B1 to B4, and whether the unbalanced load exists or not can be used as a means for monitoring the engine working state through comparison; as shown in fig. 8, when there is an unbalanced load, the axial load difference at each position of the second measurement set will be large, and when the output strain amounts of the measurement units e and f are small, the output strain amounts of the measurement units g and h will be relatively large, and the unbalanced load position is considered to be on the measurement unit g and h sides.
In this embodiment, the strain gauge 4 can measure 5 to 20 mu epsilon after the sensing element 3 is connected with the elastic supporting structure 100.
The strain is chosen to be between 5 and 20 mu epsilon in order to ensure that there is already contact between the sensing member 3 and the support structure 100 at the beginning of installation. Because of the processing precision, the pre-tightening amount is difficult to adjust to a relatively small amount (less than 5 mu epsilon); if it is larger than 20. Mu.. Epsilon., the strain measurement range will be narrowed if the preload is large because the linear deformation range of the sensor 3 is constant.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an axial force measuring device of integrated bearing, its characterized in that, including the measuring unit that is used for measuring the axial force of integrated bearing, the measuring unit including be used for connecting mounting panel (1) of integrated bearing, cloth in backup pad (2) on mounting panel (1), follow sensitive piece (3) that radial of integrated bearing laid and cloth in strain gauge (4) on sensitive piece (3), the first end of sensitive piece (3) with backup pad (2) are connected, and the second end is used for bearing the axial force of integrated bearing, two strain gauge (4) follow the axial interval of integrated bearing lays, and just respectively arrange in on two sides that sensitive piece (3) are relative, integrated bearing includes elastic support structure (100), elastic support structure (100) are including bullet branch installation limit (101), set up on bullet branch installation limit (101) along its circumference equipartition bullet branch mounting hole (102), set up on mounting panel (1) with set up on the mounting panel (103) along the axial interval of support window (103) are laid, elastic support structure (100) are laid along elastic support structure (100) between two adjacent (103) are passed through, elastic support structure (103) are laid on (100), the second end of the sensitive element (3) extends into the fenestration (103) and is connected to the elastic support structure (100).
2. The axial force measuring device of an integrated bearing according to claim 1, characterized in that the sensitive element (3) is equidistant from adjacent two of the spring strips (104).
3. The axial force measuring device of an integrated bearing according to claim 1 or 2, characterized in that the number of measuring units is 4n and is evenly distributed along the circumference of the elastic support structure (100), the strain gauges (4) constituting a wheatstone full bridge and/or a wheatstone half bridge by wiring.
4. An axial force measuring device of an integrated bearing according to claim 3, characterized in that the strain gauge (4) is arranged on the end of the sensitive element (3) connected to the support plate (2).
5. An axial force measuring device of an integrated bearing according to claim 3, characterized in that the support plate (2) is arranged in the axial direction of the integrated bearing.
6. An axial force measuring device of an integrated bearing according to claim 3, characterized in that the thickness of the sensitive element (3) is 0.2-0.5 mm.
7. An axial force measurement method of an integrated bearing, characterized by using the axial force measurement device of an integrated bearing according to any one of claims 4 to 6, comprising the steps of:
S1, a locking piece (5) penetrates through a through hole (11) in a mounting plate (1) and a spring mounting hole (102) in a spring mounting edge (101), the mounting plate (1) and an elastic supporting structure (100) are mounted on an engine casing together, and a sensitive piece (3) stretches into the middle position of a window (103) and is connected with the elastic supporting structure (100);
S2, four measuring units are first measuring groups, one measuring unit is arranged at each 90-degree interval along the circumferential direction of the elastic supporting structure (100), eight strain gauges (4) form a Wheatstone full bridge through wiring, and output lines of the Wheatstone full bridge are connected into strain gauges;
S3, after the four measuring units are installed and assembled, simulating the stress condition on the engine, applying load along the central axial direction of the elastic supporting structure (100), simultaneously recording corresponding output strain values, adopting a least square method to linearly fit the axial load and the output strain to obtain a calibration coefficient A of the axial load and the strain,
A＝y/x
Wherein A is the calibration coefficient of axial force and strain, y is the axial load, and the unit is cow; x is the corresponding output strain quantity, and the unit is mu epsilon;
And S4, acquiring an output strain value in the engine test process, and multiplying the output strain value by a coefficient A to obtain the axial force on the elastic support structure (100).
8. The axial force measuring method of the integrated bearing according to claim 7, further comprising the steps of S5, wherein four measuring units are a second measuring group, the installation mode of the second measuring group is the same as that of the first measuring group, the installation position of the second measuring group is staggered from that of the first measuring group, two strain gauges on each measuring unit form four Wheatstone half-bridges through wiring, output lines of the Wheatstone half-bridges are connected into strain gauges, the output strain value of each measuring unit and the applied axial load are calibrated respectively to obtain calibration coefficients B1-B4 of each measuring unit, the strain value of each measuring device is measured in an engine working state, and the axial load of the installation position of each measuring unit of the second measuring group can be obtained by multiplying the corresponding coefficients B1-B4.
9. The method for measuring the axial force of an integrated bearing according to claim 7 or 8, characterized in that the strain gauge (4) has an initial strain of 5-20 με after the sensitive element (3) is connected to the elastic support structure (100).
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| CN202410879360.7A CN118424535B (en) | 2024-07-02 | 2024-07-02 | Axial force measuring device and measuring method of integrated bearing |
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| CN202410879360.7A CN118424535B (en) | 2024-07-02 | 2024-07-02 | Axial force measuring device and measuring method of integrated bearing |
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| CN118424535B true CN118424535B (en) | 2024-09-27 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10151561A1 (en) * | 2000-10-23 | 2002-07-18 | Siemens Ag | Force sensor for a motor vehicle for determination of an axially directed force, e.g. the force applied to a braking caliper, has a sensor ring that can be placed between force applying and receiving components without clamping |
| CN115539144A (en) * | 2022-08-24 | 2022-12-30 | 中国航发湖南动力机械研究所 | Elastic strip staggered axial force measurement integrated elastic support and measurement method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8696312B2 (en) * | 2010-02-01 | 2014-04-15 | Pratt & Whitney Canada Corp. | Axial load damping system for rotor shaft |
| US10557497B1 (en) * | 2018-06-22 | 2020-02-11 | Florida Turbine Technologies, Inc. | Axial thrust foil air bearing with thrust sensor |
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- 2024-07-02 CN CN202410879360.7A patent/CN118424535B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10151561A1 (en) * | 2000-10-23 | 2002-07-18 | Siemens Ag | Force sensor for a motor vehicle for determination of an axially directed force, e.g. the force applied to a braking caliper, has a sensor ring that can be placed between force applying and receiving components without clamping |
| CN115539144A (en) * | 2022-08-24 | 2022-12-30 | 中国航发湖南动力机械研究所 | Elastic strip staggered axial force measurement integrated elastic support and measurement method |
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