CN107631821A - The dynamic stress testing method and test device of a kind of flexible disk - Google Patents
The dynamic stress testing method and test device of a kind of flexible disk Download PDFInfo
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- CN107631821A CN107631821A CN201711013806.4A CN201711013806A CN107631821A CN 107631821 A CN107631821 A CN 107631821A CN 201711013806 A CN201711013806 A CN 201711013806A CN 107631821 A CN107631821 A CN 107631821A
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Abstract
The invention provides a kind of dynamic stress testing method of flexible disk, including：Test foil gauge is pasted at the concern position of flexible disk；Fairlead, battery fixing groove, battery securing cover plate mounting hole, transmitter module fixing hole and lead fixing groove are processed on engine flywheel；Transmitter module and battery are separately fixed in transmitter module fixing hole and battery fixing groove；Dummy gauge is pasted on battery securing cover plate；Speed changer and engine assembly are connected, test foil gauge lead, dummy gauge lead and battery lead is passed through fairlead from flywheel rear end to be connected in flywheel front end with transmitter module lead；Each lead is connected by the startup motor installing hole on engine, and all redundant leads are fixed in the lead fixing groove on flywheel；Start engine；Receive the strain signal and the strain signal is analyzed, obtain the stress curve at flexible disk concern position.The present invention can be accurately tested the true stress state under flexible disk working condition.
Description
Technical field
The present invention relates to a kind of dynamic stress testing method of flexible disk and test device, more particularly to a kind of automobile variable speed
The dynamic stress testing method and test device of flexible disk are rotated in device clutch airtight cavity at a high speed.
Background technology
In double-clutch automatic transmission structure, flexible disk is installed between engine flywheel and clutch, is played
Engine passing power axial direction, vibration radially and circumferentially and the error brought are reduced, protects clutch from the effect of impact,
Therefore, its stress state is the multi-axis stress state of disproportional, and carrying situation is complicated, such as soft easily in flexible disk dangerous position
Property disk outer rim nut root at there is high Zhou Xingzhi rotary bending fatigue fracture.So accurately test flexible disk rotates at a high speed
The cycle dynamic stress at position is paid close attention under state, to instruct flexible disk structure design and analysis of fatigue be it is very important,
But because flexible disk is in a closed cavity, and rotated again along with high speed, its dynamic stress obtains extremely difficult.
At present, the acquisition methods on flexible disk concern position stress are rested on finite element stimulation mostly, are led to
Cross build model, mesh generation, boundary condition input simply obtain pay close attention to position stress value, still, due to flexible disk knot
There is the factors such as low, the load boundary input inaccuracy of the degree of accuracy in the particularity of structure, its dangerous position model, what simulation calculation obtained
Dangerous position stress value error is typically bigger；Also there are some professionals using the method for wired electrical measurement in concern position arrangement
Good foil gauge, is gathered, data conversion obtains stress value by strain signal, but such a method is also only capable of realizing the survey of static stress
Examination, can not obtain the true stress state under flexible disk working condition.
It would therefore be highly desirable to need to occur a kind of can accurately test the true stress state under flexible disk working condition
Scheme.
The content of the invention
For above-mentioned technical problem, the embodiment of the present invention provides the dynamic stress testing method and test dress of a kind of flexible disk
Put, can realize and the dynamic stress state at flexible disk concern position is accurately tested.
The technical solution adopted by the present invention is：
The embodiment of the present invention provides a kind of dynamic stress testing method of flexible disk, comprises the following steps：In flexible disk
Pay close attention to position and paste test foil gauge；Fairlead, battery fixing groove, the installation of battery securing cover plate are processed on engine flywheel
Hole, transmitter module fixing hole and lead fixing groove；Wherein, lead fixing groove and transmitter module fixing hole are arranged on flywheel front end
Face, battery fixing groove are arranged on flywheel rear end face；Transmitter module and battery are separately fixed at transmitter module fixing hole and battery
In fixing groove, wherein the battery is fixed in the battery fixing groove by battery securing cover plate；On battery securing cover plate
Paste dummy gauge；Speed changer and engine assembly are connected, while makes test foil gauge lead, dummy gauge lead and electricity
Pond lead passes through fairlead to be connected in flywheel front end with transmitter module lead from flywheel rear end；Pass through the startup on engine
Motor installing hole connecting test foil gauge, dummy gauge, the lead of transmitter module and battery, and all redundant leads are fixed
In lead fixing groove on flywheel；Start engine；Now, the test foil gauge is produced and answered because flexible disk stand under load deforms
Varying signal, the strain signal are transmitted to the transmitter module by lead；Receive the strain signal and to the strain
Signal is analyzed, so as to obtain the stress curve at flexible disk concern position.
Alternatively, the test foil gauge and dummy gauge are strain rosette.
Alternatively, the concern position is the outer rim nut root position that flexible disk is easily broken.
Alternatively, the fairlead is arranged on the position on the right side of engine flywheel installation flexible disk nut, apart from flywheel side
Edge about 15mm.
Alternatively, the battery fixing groove is located in position of the flywheel rear end face apart from the fairlead about at 50mm.
Alternatively, the lead fixing groove is between flywheel front end face fairlead and transmitter module fixed position.
Another embodiment of the present invention provides a kind of ambulatory stress test device of flexible disk, including is connected in turn
Engine, transmission assembly, receiving module and the data processing equipment of flywheel including flexible disk, wherein, the flexible disk
Concern is provided with test foil gauge on position；Fairlead, battery fixing groove, the installation of battery securing cover plate are provided with the flywheel
Hole, transmitter module fixing hole and lead fixing groove, wherein, lead fixing groove and transmitter module fixing hole are arranged on flywheel front end
Face, the transmitter module fixing hole are used for fixed transmission module, and battery fixing groove is arranged on flywheel rear end face, for fixed electricity
Pond；The battery is fixed in the battery fixing groove by battery securing cover plate, and compensation is pasted on the battery securing cover plate
Foil gauge；Test foil gauge lead, dummy gauge lead and the battery lead from flywheel rear end through fairlead so as to
Flywheel front end is connected with transmitter module lead；The lead for testing foil gauge, dummy gauge, transmitter module and battery passes through
Startup motor installing hole connection on engine, and the lead of redundancy is fixed on the lead by the motor installing hole and consolidated
Determine in groove；It is described test foil gauge because the flexible disk stand under load deform and caused by strain signal and the dummy gauge generation
Strain signal pass to receiving module via the transmitter module, the signal of reception is sent at data by the receiving module
Device is managed, the data processing equipment carries out data processing to obtain the concerned department of the flexible disk to the strain signal received
The dynamic strain values of position.
Alternatively, the test foil gauge and dummy gauge are strain rosette.
Alternatively, the concern position is the outer rim nut root position that flexible disk is easily broken.
Compared with prior art, the dynamic stress testing method of flexible disk provided in an embodiment of the present invention and test device tool
Have the following advantages：
Method of testing provided by the invention takes particular design according to flexible disk present position to wiring method, i.e.,：Peace
After installing test foil gauge, dummy gauge and battery, by test foil gauge lead, compensation strain lead and battery lead by flying
Take turns rear end face and reach flywheel front end through flywheel fairlead, be connected with wireless transmitter module lead, and redundant leads are put into and drawn
Fixed in line fixing groove, so, foil gauge, battery and transmitter module and flexible disk keep geo-stationary, can be by strain signal
Transmitted and launched in real time, the signal emitted is realized by the wireless receiving module for placing (in 10 meters of distance) on one side adopt again
Collection, most afterwards through straining to stress transmission so as to obtaining the dynamic strain values of fracture location under flexible disk high speed rotation state.In addition,
The present invention has pasted foil gauge at the concern position of flexible disk, and considers operating temperature problem, has pasted and has been mended for temperature
The foil gauge repaid, influenceed so as to eliminate temperature so that the data for testing to obtain are true and reliable.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the dynamic stress testing method of flexible disk provided in an embodiment of the present invention；
Fig. 2 to Fig. 6 is the structural representation of the ambulatory stress test device of the flexible disk of application of the embodiment of the present invention.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
Fig. 1 is the schematic flow sheet of the dynamic stress testing method of flexible disk provided in an embodiment of the present invention；Fig. 2 to Fig. 6
For the structural representation of the ambulatory stress test device of the flexible disk of application of the embodiment of the present invention.
As shown in figure 1, the dynamic stress testing method of flexible disk provided in an embodiment of the present invention comprises the following steps：
S101, test foil gauge is pasted at the concern position of flexible disk.
In actual applications, it is contemplated that the characteristics of flexible disk multiaxis carries, the paste position of foil gauge of the invention need
With reference to simulation result reasonable Arrangement, multiaxial loading identified sign maximum position is applied by simulation model and determines that foil gauge glues
Patch point.In one exemplary embodiment, the concern position (strain gauge adhesion position) in the present invention easily occurs for flexible disk
The outer rim nut root position of fracture, as shown in Fig. 2 being pasted in the outer rim nut root position that flexible disk 1 is easily broken
There is test foil gauge 2.Make it that test result is accurate, the test foil gauge 2 of the embodiment of the present invention uses strain rosette.
S102, fairlead, battery fixing groove, battery securing cover plate mounting hole, transmitter module are processed on engine flywheel
Fixing hole and lead fixing groove；Wherein, lead fixing groove and transmitter module fixing hole are arranged on flywheel front end face, battery fixing groove
It is arranged on flywheel rear end face.
Fairlead, battery fixing groove, battery securing cover plate mounting hole, transmitter module fixing hole and lead in the present invention are consolidated
The Working position of groove is determined premised on the normal operating for not influenceing flywheel and flexible disk, you can is ensureing not interfere flywheel and flexibility
On the premise of disk, choose appropriate position and be configured.In one exemplary embodiment of the invention, such as Fig. 2 to Fig. 6 institutes
Show, installed in the flywheel 3 of engine 13 and (see) opening position from back to front on the right side of flexible disk nut (apart from flywheel rim about 15mm)
1 fairlead 4 is processed, fairlead can be the through hole that size is Φ 8；On the side of flywheel rear end face fairlead 1 (about apart from fairlead
Position at 50mm) shape of battery 12 processing battery fixing groove 5 is based on, the size of fixing groove 5 can be 60mm × 28mm × 9mm,
Battery 12 can be the standard dry cell batteries that voltage is 9V.Power supply securing cover plate mounting hole 9 may be provided at four angles of battery fixing groove 5
Place, for being bolted power supply securing cover plate 8, the depth of power supply securing cover plate mounting hole 9 can be 5mm, suitable for specification
For M3 bolt.(about 100mm, apart from flywheel rim about 15mm) is added based on transmitter module 11 on the left of flywheel front end face fairlead
Work transmitter module fixing hole 6, transmitter module fixing hole 6 are 2, and for being bolted transmitter module 11, transmitter module is solid
The depth for determining hole 6 can be 5mm, suitable for the bolt that specification is M3.The present invention can use the hair of German CAEMAX companies Dx models
Module is penetrated, but is not limited thereto, the transmitter module of other models can also be used, as long as being capable of transmission signal.Drawing
1 lead fixing groove 7 is processed close to circle centre position between string holes and transmitter module fixed position, the size of the lead fixing groove 7 can
For circular arc fixing groove (arc length 90mm, groove width 15mm, apart from the edge of flywheel 3 about 30mm).
S103, transmitter module and battery be separately fixed in transmitter module fixing hole and battery fixing groove, wherein described
Battery is fixed in the battery fixing groove by battery securing cover plate.
Transmitter module 11 and battery 12 can be bolted in transmitter module fixing hole 6 and battery fixing groove 5, specifically
Ground, transmitter module 11 directly can be screwed into 6 realizations in transmitter module fixing hole by bolt and fix, and battery 12 can first be placed on electricity
In pond fixing groove 5, such as it can then be capped battery securing cover plate 8, last profit by AB glue hydropexis in battery fixing groove 5
Battery securing cover plate 8 is fixed on battery securing cover plate mounting hole 9 with bolt, so as to which battery 12 is fixed on into battery fixing groove
In 5.
S104, paste dummy gauge on battery securing cover plate.
In the present invention, in order to eliminate the influence that temperature band is come, dummy gauge 10 is pasted in battery securing cover plate 8, is used
In temperature-compensating.Dummy gauge 10 forms half-bridge bridge to eliminate temperature influence with test foil gauge 2, and can use should with test
Become the strain rosette of the same size of piece 2.In actual test, the signal value that test foil gauge 2 is tested is tested with dummy gauge 10
The difference of temperature value be actual strain signal value.
S105, connection speed changer and engine assembly, while make test foil gauge lead, dummy gauge lead and battery
Lead passes through fairlead to be connected in flywheel front end with transmitter module lead from flywheel rear end.
After setting corresponding component on flywheel, flywheel is installed on engine, and is bolted to connection speed change
Device flexibility disc assembly (including the component such as flexible disk and speed changer) so that speed changer flexibility disc assembly is closed in case of transmission
In the cavity formed with engine rear end face, while make test foil gauge lead, the dummy gauge lead being arranged on flywheel
And battery lead passes through fairlead to be connected in flywheel front end with transmitter module lead from flywheel rear end.
S106, the startup motor installing hole connecting test foil gauge by engine, dummy gauge, transmitter module and
The lead of battery, and all redundant leads are fixed in the lead fixing groove on flywheel.
As shown in figure 4, the test foil gauge of redundancy, compensation are strained by the startup motor installing hole 14 on engine 13
The lead of piece, transmitter module and battery is by glue such as AB glue hydropexis in lead fixing groove 7.
S107, start engine；Now, the test foil gauge produces strain signal because flexible disk stand under load deforms, institute
Strain signal is stated by lead to transmit to the transmitter module.
By institute it is leaded fix after, start engine, flywheel take to flexible disk rotation, now, test foil gauge 2 because
The stand under load of flexible disk 1 deforms and produces strain signal, and the strain signal passes to transmitter module by testing the lead of foil gauge.This
Outside, the strain value of dummy gauge test also can pass to transmitter module by dummy gauge lead.
S108, receive the strain signal and the strain signal is analyzed, so as to obtain flexible disk concern position
Stress curve.
The signal that transmitter module is sent can be received by receiving module.Can channel radio between receiving module and transmitter module
Letter.The present invention can use the receiving module of German CAEMAX companies Dx models, but be not limited thereto, and can also use its alloytype
Number receiving module, as long as being capable of transmission signal.The signal that receiving module receives can be sent on computer, by computer
Stored and data conversion, so as to obtain the stress curve at flexible disk concern position, specifically through strain to stress transmission so as to
Obtain the dynamic strain values of fracture location under flexible disk high speed rotation state.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of ambulatory stress test device of flexible disk, by
It is similar to the dynamic stress testing method of foregoing soft disk to solve the principle of problem in the equipment, therefore the implementation of the device can
Referring to the implementation of preceding method, to repeat part and repeat no more.
The ambulatory stress test device of flexible disk provided in an embodiment of the present invention can be obtained by the method for previous embodiment.
As shown in Figures 2 to 6, the ambulatory stress test device of flexible disk provided in an embodiment of the present invention includes：Including being connected in turn
Engine 13 together, flywheel 3 including the transmission assembly (not shown) and receiving module of flexible disk 1 and data processing dress
Put (not shown).Wherein, test foil gauge 2 is provided with the concern position of the flexible disk 1；It is provided with and draws on the flywheel 3
String holes 4, battery fixing groove 5, battery securing cover plate mounting hole 9, transmitter module fixing hole 6 and lead fixing groove 7, wherein, lead
Fixing groove 7 and transmitter module fixing hole 6 are arranged on flywheel front end face, and the transmitter module fixing hole 9 is used for fixed transmission module
11, battery fixing groove 5 is arranged on flywheel rear end face, for self-contained battery 12；The battery 12 is fixed by battery securing cover plate 8
In the battery fixing groove 5, dummy gauge 10 is pasted on the battery securing cover plate 8；The test foil gauge lead, mend
Repay foil gauge lead and battery lead and pass through fairlead 4 from flywheel rear end to be connected in flywheel front end with transmitter module lead；
The lead for testing foil gauge, dummy gauge, transmitter module and battery passes through the startup motor installing hole 14 on engine
Connection, and the lead of redundancy is fixed in the lead fixing groove 5 by the motor installing hole；It is described test foil gauge because
Strain signal is via the transmitting caused by flexible disk stand under load deformation and caused strain signal and the dummy gauge
Module passes to receiving module, and the signal of reception is sent to data processing equipment, the data processing dress by the receiving module
Put and data processing is carried out to the strain signal received to obtain the dynamic strain values at the concern position of the flexible disk.This implementation
The data processing equipment of example can be computer with data processing function etc..
Further, the test foil gauge and dummy gauge are strain rosette.
Further, the concern position is the outer rim nut root position that flexible disk is easily broken.
Further, the fairlead is arranged on the position on the right side of engine flywheel installation flexible disk nut, apart from flywheel
Edge about 15mm.
Further, the battery fixing groove is located in position of the flywheel rear end face apart from the fairlead about at 50mm
Put.
Further, the lead fixing groove is between flywheel front end face fairlead and transmitter module fixed position.
The respective handling step that the function of each component of said apparatus may correspond in flow shown in Fig. 1, it is no longer superfluous herein
State.
Embodiment described above, it is only the embodiment of the present invention, to illustrate technical scheme, rather than
It is limited, protection scope of the present invention is not limited thereto, although having been carried out in detail to the present invention with reference to the foregoing embodiments
Illustrate, it will be understood by those within the art that：Any one skilled in the art the invention discloses
In technical scope, it can still modify to the technical scheme described in previous embodiment or can readily occur in change, or
Person carries out equivalent substitution to which part technical characteristic；And these modifications, change or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all be included within the scope of the present invention.Therefore,
Protection scope of the present invention described should be defined by scope of the claims.
Claims (9)
1. a kind of dynamic stress testing method of flexible disk, it is characterised in that comprise the following steps：
Test foil gauge is pasted at the concern position of flexible disk；
Fairlead, battery fixing groove, battery securing cover plate mounting hole, transmitter module fixing hole are processed on engine flywheel and is drawn
Line fixing groove；Wherein, lead fixing groove and transmitter module fixing hole are arranged on flywheel front end face, and battery fixing groove is arranged on flywheel
Rear end face；
Transmitter module and battery are separately fixed in transmitter module fixing hole and battery fixing groove, wherein the battery passes through electricity
Pond securing cover plate is fixed in the battery fixing groove；
Dummy gauge is pasted on battery securing cover plate；
Speed changer and engine assembly are connected, while makes test foil gauge lead, dummy gauge lead and battery lead from flying
Wheel rear end passes through fairlead to be connected in flywheel front end with transmitter module lead；
Pass through drawing for the startup motor installing hole connecting test foil gauge on engine, dummy gauge, transmitter module and battery
Line, and all redundant leads are fixed in the lead fixing groove on flywheel；
Start engine；Now, the test foil gauge produces strain signal because flexible disk stand under load deforms, the strain signal
Transmitted by lead to the transmitter module；
Receive the strain signal and the strain signal is analyzed, it is bent so as to obtain the stress at flexible disk concern position
Line.
2. the dynamic stress testing method of flexible disk according to claim 1, it is characterised in that it is described test foil gauge and
Dummy gauge is strain rosette.
3. the dynamic stress testing method of flexible disk according to claim 1, it is characterised in that the concern position is soft
The outer rim nut root position that property disk is easily broken.
4. the dynamic stress testing method of flexible disk according to claim 1, it is characterised in that the fairlead is arranged on
Position on the right side of engine flywheel installation flexible disk nut, apart from flywheel rim about 15mm.
5. the dynamic stress testing method of flexible disk according to claim 1, it is characterised in that the battery fixing groove position
In in position of the flywheel rear end face apart from the fairlead about at 50mm.
6. the dynamic stress testing method of flexible disk according to claim 1, it is characterised in that the lead fixing groove position
Between flywheel front end face fairlead and transmitter module fixed position.
A kind of 7. ambulatory stress test device of flexible disk, it is characterised in that including be connected in turn engine, fly
Wheel includes transmission assembly, receiving module and the data processing equipment of flexible disk,
Wherein, it is provided with test foil gauge on the concern position of the flexible disk；It is solid that fairlead, battery are provided with the flywheel
Determine groove, battery securing cover plate mounting hole, transmitter module fixing hole and lead fixing groove, wherein, lead fixing groove and transmitter module
Fixing hole is arranged on flywheel front end face, and the transmitter module fixing hole is used for fixed transmission module, and battery fixing groove is arranged on winged
Rear end face is taken turns, for self-contained battery；The battery is fixed in the battery fixing groove by battery securing cover plate, the battery
Dummy gauge is pasted on securing cover plate；
Test foil gauge lead, dummy gauge lead and the battery lead are from flywheel rear end through fairlead so as in flywheel
Front end is connected with transmitter module lead；The lead for testing foil gauge, dummy gauge, transmitter module and battery is by starting
Startup motor installing hole connection on machine, and the lead of redundancy is fixed on the lead fixing groove by the motor installing hole
In；The test foil gauge because the flexible disk stand under load deform and caused by answer caused by strain signal and the dummy gauge
Varying signal passes to receiving module via the transmitter module, and the signal of reception is sent to data processing and filled by the receiving module
Put, the data processing equipment carries out data processing to obtain the concern position of the flexible disk to the strain signal received
Dynamic strain values.
8. the ambulatory stress test device of flexible disk according to claim 7, it is characterised in that it is described test foil gauge and
Dummy gauge is strain rosette.
9. the ambulatory stress test device of flexible disk according to claim 1, it is characterised in that the concern position is soft
The outer rim nut root position that property disk is easily broken.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013806.4A CN107631821B (en) | 2017-10-26 | 2017-10-26 | A kind of dynamic stress testing method and test device of flexible disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013806.4A CN107631821B (en) | 2017-10-26 | 2017-10-26 | A kind of dynamic stress testing method and test device of flexible disk |
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| Publication Number | Publication Date |
|---|---|
| CN107631821A true CN107631821A (en) | 2018-01-26 |
| CN107631821B CN107631821B (en) | 2019-10-29 |
Family
ID=61106049
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711013806.4A Active CN107631821B (en) | 2017-10-26 | 2017-10-26 | A kind of dynamic stress testing method and test device of flexible disk |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967155A (en) * | 2019-09-30 | 2020-04-07 | 中国第一汽车股份有限公司 | Rigidity testing device for flexible disk of automatic transmission |
| CN113295406A (en) * | 2021-05-20 | 2021-08-24 | 中国第一汽车股份有限公司 | Device and method for calibrating axial pressure of clutch of transfer case assembly |
| CN114992281A (en) * | 2022-05-30 | 2022-09-02 | 重庆青山工业有限责任公司 | Flywheel assembly for connecting clutch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110967155A (en) * | 2019-09-30 | 2020-04-07 | 中国第一汽车股份有限公司 | Rigidity testing device for flexible disk of automatic transmission |
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| CN113295406A (en) * | 2021-05-20 | 2021-08-24 | 中国第一汽车股份有限公司 | Device and method for calibrating axial pressure of clutch of transfer case assembly |
| CN113295406B (en) * | 2021-05-20 | 2022-09-09 | 中国第一汽车股份有限公司 | Device and method for calibrating axial pressure of clutch of transfer case assembly |
| CN114992281A (en) * | 2022-05-30 | 2022-09-02 | 重庆青山工业有限责任公司 | Flywheel assembly for connecting clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107631821B (en) | 2019-10-29 |
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