CN109115378A - A kind of flexural pivot force test device and its test method - Google Patents
A kind of flexural pivot force test device and its test method Download PDFInfo
- Publication number
- CN109115378A CN109115378A CN201810844824.5A CN201810844824A CN109115378A CN 109115378 A CN109115378 A CN 109115378A CN 201810844824 A CN201810844824 A CN 201810844824A CN 109115378 A CN109115378 A CN 109115378A
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- CN
- China
- Prior art keywords
- foil gauge
- flexural pivot
- strain
- measured
- foil
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to automobile technical field more particularly to a kind of flexural pivot force test device and its test methods.Including flexural pivot to be measured, blind hole and through-hole, the flexural pivot to be measured is axially vertically disposed blind hole, the flexural pivot to be measured has been arranged radially through-hole, the blind hole is connected to the through-hole, and the first foil gauge and third foil gauge are pasted on the left of the flexural pivot to be measured, pastes the second foil gauge and the 4th foil gauge on the right side of the flexural pivot to be measured, four foil gauges form favour stone full-bridge, measurement X-direction strain；The first foil gauge and third foil gauge are pasted on front side of the flexural pivot to be measured, rear side pastes the second foil gauge and the 4th foil gauge, and four foil gauges form favour stone full-bridge, measurement Y-direction strain.Favour stone full-bridge foil gauge test data is accurate, will not be interfered and generate offset etc., and for flexural pivot boring method because being flexural pivot internal wiring, can completely avoid movement interference influences cable.
Description
Technical field
The present invention relates to automobile technical field more particularly to a kind of flexural pivot force test device and its test methods.
Background technique
Automobile hanging flexural pivot stress is the key parameter of chassis design, and best bet is direct measurement flexural pivot stress, but
Direct measuring force is extremely difficult, it is necessary to by measurement flexural pivot strain to measure flexural pivot stress.
The measurement of flexural pivot power is due to narrow space and movement interference, and difficult, generally conventional method is according to unidirectional strain
Piece+and along flexural pivot surface wiring method, the measurement data of unidirectional foil gauge is easy to be interfered and generate the adverse effects such as offset,
It is then very easy to along flexural pivot surface wiring because movement interference causes broken cable.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, adapt to reality and need, and provide a kind of flexural pivot power test dress
It sets and its test macro.
In order to achieve the object of the present invention, the technical solution adopted by the present invention are as follows: a kind of flexural pivot force measuring device, including to
Flexural pivot, blind hole and through-hole are surveyed, the flexural pivot to be measured is axially vertically disposed blind hole, and the flexural pivot to be measured has been arranged radially logical
Hole, the blind hole are connected to the through-hole, and the first foil gauge and third foil gauge are pasted on the left of the flexural pivot to be measured, described to be measured
The second foil gauge and the 4th foil gauge are pasted on the right side of flexural pivot, four foil gauges form favour stone full-bridge, measurement X-direction strain；Institute
It states and pastes the first foil gauge and third foil gauge on front side of flexural pivot to be measured, rear side the second foil gauge of stickup and the 4th foil gauge, four
Foil gauge forms favour stone full-bridge, measurement Y-direction strain.
Foil gauge needs to be fixed on flexural pivot after sealing, curing process.
A kind of scaling method, the system are suitable for a kind of flexural pivot force measuring device, comprising the following steps:
Step 1: installing flexural pivot force measuring device, and flexural pivot force measuring device is connect with caliberating device, flexural pivot power is surveyed
Amount device is connected with deformeter respectively with caliberating device；
Step 2: caliberating device applies active force to flexural pivot, and the force signals of application are transferred to deformeter, is marking
Under the effect of locking equipment active force, flexural pivot deformation, foil gauge record deformation, and the foil gauge signal of record is transferred to deformeter.
Step 3: computing unit by record power and strain signal be fitted processing, obtain the linear of power and strain
Relationship；
Step 4: according to linear relationship, the strain signal in test process can be converted into force signal, to obtain power
Signal.
The step 1 flexural pivot force measuring device installation method are as follows: the first foil gauge and third strain are pasted on the left of flexural pivot
Piece, the second foil gauge is pasted on right side and the 4th foil gauge, the first foil gauge, the second strain, third foil gauge, the 4th foil gauge are pressed
Four bridge arms of Wheatstone bridge, measurement X-direction strain are accessed according to first, second, third, fourth sequence；It is glued on front side of flexural pivot
Paste the first foil gauge and third foil gauge, rear side pastes the second foil gauge and the 4th foil gauge, the first foil gauge, the second strain,
Third foil gauge, the 4th strain access four bridge arms of Wheatstone bridge according to the first, second, third, fourth sequence, measure the side Y
To strain.
The scaling method of the step 2 an are as follows: power is applied to X-direction, at this point, X-direction strain has signal output, is answered
Become the power and strain signal that instrument applies record, under normal circumstances, power and strain are in a linear relationship, carry out Y after the completion of X-direction again
Direction calibration.
The beneficial effects of the present invention are:
Favour stone full-bridge foil gauge test data is accurate, will not be interfered and generate offset etc., flexural pivot boring method because
To be flexural pivot internal wiring, can completely avoid movement interference influences cable.
Detailed description of the invention
The present invention is described further with case study on implementation with reference to the accompanying drawing.
Fig. 1 is partial schematic diagram of the invention；
Fig. 2 is flexural pivot force test device schematic diagram；
Fig. 3 is test method specific works schematic diagram.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Referring to Fig. 1-3.
The invention discloses a kind of flexural pivot force test device and its test methods.
Use principle of the invention is summarized as follows: a kind of flexural pivot force measuring device, including flexural pivot to be measured 7, blind hole 5 and
Through-hole 6, the flexural pivot 7 to be measured is axially vertically disposed blind hole 5, and the flexural pivot 7 to be measured has been arranged radially through-hole, the blind hole 5
It is connected to the through-hole 6, the first foil gauge 1 and third strain 3,7 right side of flexural pivot to be measured is pasted on the left of the flexural pivot 7 to be measured
The second foil gauge 2 and the 4th foil gauge 4 are pasted, four foil gauges form favour stone full-bridge, measurement X-direction strain；It is described to be measured
The first foil gauge 1 and third foil gauge 3 are pasted on front side of flexural pivot 7, rear side pastes the second foil gauge 2 and the 4th foil gauge 4, and four are answered
Become piece and forms favour stone full-bridge, measurement Y-direction strain.
Foil gauge needs to be fixed on flexural pivot after sealing, curing process.
A kind of scaling method, the system are suitable for a kind of flexural pivot force measuring device, comprising the following steps:
Step 1: installing flexural pivot force measuring device, and flexural pivot force measuring device is connect with caliberating device, flexural pivot power is surveyed
Amount device is connected with deformeter respectively with caliberating device；
Step 2: caliberating device applies active force to flexural pivot 7 to be measured, and the force signals of application are transferred to strain
Instrument, under the effect of calibration facility active force, flexural pivot deformation, foil gauge record deformation, and the foil gauge signal of record is transferred to
Deformeter.
Step 3: computing unit by record power and strain signal be fitted processing, obtain the linear of power and strain
Relationship；
Step 4: according to linear relationship, the strain signal in test process can be converted into force signal, to obtain power
Signal.
The step 1 flexural pivot force measuring device installation method are as follows: paste the first foil gauge 1 on the left of flexural pivot and third is answered
Become piece 3, the second foil gauge 2 and the 4th foil gauge 4 are pasted in right side, the first foil gauge 1, second strain 2, third foil gauge 3, the
Four foil gauges 4 access four bridge arms of Wheatstone bridge, measurement X-direction strain according to first, second, third, fourth sequence；
Paste the first foil gauge 1 and third foil gauge 3 on front side of flexural pivot, rear side pastes the second foil gauge 2 and the 4th foil gauge 4, and first
Foil gauge 1, second strain 2, third foil gauge 3, the 4th foil gauge 4 according to first, second, third, fourth sequence access favour this
Four bridge arms of energization bridge, measurement Y-direction strain.
One power is applied to X-direction, at this point, X-direction strain has signal output, the power and strain that deformeter applies record
Signal, under normal circumstances, power and strain are in a linear relationship, carry out Y-direction calibration after the completion of X-direction again.
Test macro includes calculation processing unit, and force signal and foil gauge signal are transferred to calculation processing list by deformeter
Member, calculation processing unit obtain the fit correlation of power and strain to force signal and foil gauge signal processing, are finally closed according to fitting
Strain is converted into the stress of flexural pivot by system.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, are similarly included in
In scope of patent protection of the invention.
Claims (5)
1. a kind of flexural pivot force measuring device, including flexural pivot to be measured (7), blind hole (5) and through-hole (6), it is characterised in that: it is described to
Survey that flexural pivot (7) are axially vertically disposed has blind hole (5), the flexural pivot (7) to be measured has been arranged radially through-hole, the blind hole (5) and institute
Through-hole (6) connection is stated, pastes the first foil gauge (1) and third strain (3), the flexural pivot to be measured on the left of the flexural pivot (7) to be measured
(7) the second foil gauge (2) and the 4th foil gauge (4) are pasted in right side, and four foil gauges form favour stone full-bridge, and measurement X-direction is answered
Become；The first foil gauge (1) and third foil gauge (3) are pasted on front side of the flexural pivot to be measured (7), rear side pastes the second foil gauge (2)
With the 4th foil gauge (4), four foil gauges form favour stone full-bridge, measurement Y-direction strain.
2. according to right want 1 described in a kind of flexural pivot force measuring device, it is characterised in that: foil gauge need by sealing, solidification
It is fixed on flexural pivot after processing.
3. a kind of scaling method, which is suitable for a kind of flexural pivot force measuring device, which comprises the following steps: step
Rapid one: installing flexural pivot force measuring device, flexural pivot force measuring device is connect with caliberating device, by flexural pivot force measuring device and mark
Determine device to connect with deformeter respectively；
Step 2: caliberating device applies active force to flexural pivot to be measured (7), and the force signals of application are transferred to deformeter,
Under the effect of calibration facility active force, flexural pivot deformation, foil gauge record deformation, and the foil gauge signal of record is transferred to strain
Instrument.
Step 3: computing unit by record power and strain signal be fitted processing, obtain the linear relationship of power and strain；
Step 4: according to linear relationship, can be converted into force signal for the strain signal in test process, to obtain power letter
Number.
4. a kind of scaling method according to claim 3, which is characterized in that the step 1 flexural pivot force measuring device installation side
Method are as follows: the first foil gauge (1) and third foil gauge (3) are pasted on the left of flexural pivot, right side is pasted the second foil gauge (2) and the 4th and answered
Become piece (4), the first foil gauge (1), the second strain (2), third foil gauge (3), the 4th foil gauge (4) according to first, second, the
Three, the 4th sequence accesses four bridge arms of Wheatstone bridge, measurement X-direction strain；The first foil gauge (1) is pasted on front side of flexural pivot
With third foil gauge (3), rear side pastes the second foil gauge (2) and the 4th foil gauge (4), the first foil gauge (1), the second strain
(2), third foil gauge (3), the 4th foil gauge (4) are according to the first, second, third, fourth sequence access Wheatstone bridge four
Bridge arm, measurement Y-direction strain.
5. a kind of scaling method according to claim 3, which is characterized in that the scaling method of the step 2 are as follows: to X-direction
Apply a power, at this point, X-direction strain has signal output, the power and strain signal that deformeter applies record, ordinary circumstance
Under, power and strain are in a linear relationship, carry out Y-direction calibration after the completion of X-direction again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844824.5A CN109115378A (en) | 2018-07-27 | 2018-07-27 | A kind of flexural pivot force test device and its test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810844824.5A CN109115378A (en) | 2018-07-27 | 2018-07-27 | A kind of flexural pivot force test device and its test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109115378A true CN109115378A (en) | 2019-01-01 |
Family
ID=64863446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810844824.5A Pending CN109115378A (en) | 2018-07-27 | 2018-07-27 | A kind of flexural pivot force test device and its test method |
Country Status (1)
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| CN (1) | CN109115378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358464A (en) * | 2021-05-23 | 2021-09-07 | 北京工业大学 | Force measuring device under reinforced concrete slab column structure column and calibration kit |
| CN114963965A (en) * | 2022-08-01 | 2022-08-30 | 江铃汽车股份有限公司 | Detection method for elastic-plastic deformation of metal part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3328101A1 (en) * | 1983-08-04 | 1984-02-23 | Daimler-Benz Ag, 7000 Stuttgart | Ball-head pin, prepared for the measurement of force, for measuring force components acting on the ball head |
| DE10323262B4 (en) * | 2003-05-23 | 2006-05-04 | Daimlerchrysler Ag | Radführungsvorrichtung a steered vehicle wheel |
| CN102147319B (en) * | 2010-12-30 | 2013-09-25 | 中国第一汽车集团公司 | Method for testing load of front axle of commercial vehicle |
| CN103512684A (en) * | 2013-10-08 | 2014-01-15 | 重庆长安汽车股份有限公司 | Method for measuring swing arm ball head stress |
| CN203881541U (en) * | 2014-04-16 | 2014-10-15 | 浙江吉利控股集团有限公司 | Measuring device |
-
2018
- 2018-07-27 CN CN201810844824.5A patent/CN109115378A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3328101A1 (en) * | 1983-08-04 | 1984-02-23 | Daimler-Benz Ag, 7000 Stuttgart | Ball-head pin, prepared for the measurement of force, for measuring force components acting on the ball head |
| DE10323262B4 (en) * | 2003-05-23 | 2006-05-04 | Daimlerchrysler Ag | Radführungsvorrichtung a steered vehicle wheel |
| CN102147319B (en) * | 2010-12-30 | 2013-09-25 | 中国第一汽车集团公司 | Method for testing load of front axle of commercial vehicle |
| CN103512684A (en) * | 2013-10-08 | 2014-01-15 | 重庆长安汽车股份有限公司 | Method for measuring swing arm ball head stress |
| CN203881541U (en) * | 2014-04-16 | 2014-10-15 | 浙江吉利控股集团有限公司 | Measuring device |
Non-Patent Citations (2)
| Title |
|---|
| 蒋翠翠等: "汽车悬架控制臂", 《现代零部件》 * |
| 郑国峰等: "汽车悬架球铰四轴载荷谱磨损试验方法", 《振动.测试与诊断》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358464A (en) * | 2021-05-23 | 2021-09-07 | 北京工业大学 | Force measuring device under reinforced concrete slab column structure column and calibration kit |
| CN114963965A (en) * | 2022-08-01 | 2022-08-30 | 江铃汽车股份有限公司 | Detection method for elastic-plastic deformation of metal part |
| CN114963965B (en) * | 2022-08-01 | 2022-10-21 | 江铃汽车股份有限公司 | Detection method for elastic-plastic deformation of metal part |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
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| RJ01 | Rejection of invention patent application after publication |