CN109357605A - The installation method of the narrow Gear Root strain gauge of bottom clearance - Google Patents
The installation method of the narrow Gear Root strain gauge of bottom clearance Download PDFInfo
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- CN109357605A CN109357605A CN201811357508.1A CN201811357508A CN109357605A CN 109357605 A CN109357605 A CN 109357605A CN 201811357508 A CN201811357508 A CN 201811357508A CN 109357605 A CN109357605 A CN 109357605A
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- strain gauge
- lead
- gear
- installation
- terminal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of installation methods of Gear Root strain gauge that bottom clearance is narrow, comprising: installation site determines, determines that the root stress maximum position of gear to be installed is installation site；Strain gauge prepares, and the bulk of strain gauge and the bottom clearance of gear to be installed match；Polishing cleaning, the installation site of the tooth root of gear to be installed is polished and is cleaned；Strain gauge installation, is pasted and fixed on installation site for strain gauge and is fixed；The terminal for being used for the lead of connecting test conducting wire and strain gauge is mounted on the non-working surface neighbouring with the strain gauge installation gear teeth of gear to be installed by terminal installation；Lead is distributed and fixes, the lead of strain gauge two sides is laid along gullet base respectively, the lead that will be far from terminal side, which turns back or is pierced by from vibration damping hole, to be come together in terminal with the lead of the other side afterwards and is fixedly connected with terminal, so that lead and lead, lead and strain gauge are non-overlapping.The present invention solves the problems, such as that strain gauge is difficult in the narrow Gear Root installation of bottom clearance.
Description
Technical field
The present invention relates to the installing areas of strain gauge, particularly, are related to a kind of Gear Root strain gauge that bottom clearance is narrow
Installation method.
Background technique
The size of Helicopter Transmission System reducer gear Dedenda's bending stress directly affects its service life and safety, right
Strain ga(u)ge mensuration can be used in the measurement of Gear Root Stress, the accuracy of test result depends on strain gauge
Installation quality.Aero-engine and transmission system Gear Root have bottom clearance narrow, and remaining space is small when engagement, operating condition is disliked
The features such as bad (greasy dirt weight, revolving speed is high, and installation procedure is complicated), generally it is difficult in the case where not destroying gear structure at tooth root
It is subject to crushing strain gauge and lead because of gear teeth meshing after installation strain gauge or strain gauge installation.Its difficult point is: 1. peaces
Narrow space is filled, working environment is severe, and test survival rate is low, it is desirable that strain gauge size is small, lead is thin, strain gauge installation behaviour
Make difficult.
Existing gear strain gauge installation method can refer to the Chinese invention patent Shen application No. is 201310301097.5
Please " gear stress measurement strain gauge adhesion process ", in this method, lead terminal and strain gauge are installed on root portion side by side
Position increases strain gauge and damages failure risk by pressure in Meshing Process of Spur Gear, and strain gauge paste process is pressed using toothpick, it is difficult to
Guarantee the uniform and thickness of glue-line.The strain gauge of this method installation works in Gear Root of the bottom clearance less than 0.7mm, easily makes to strain
Meter, lead terminal or lead are subject to crushing and make test failure.
Summary of the invention
The present invention provides a kind of installation methods of Gear Root strain gauge that bottom clearance is narrow, to solve the narrow tooth of bottom clearance
The strain gauge and lead that wheel tooth root strain gauge is difficult to install, installs are easy the technical issues of being subject to crushing in Meshing Process of Spur Gear.
The technical solution adopted by the invention is as follows:
A kind of installation method for the Gear Root strain gauge that bottom clearance is narrow, comprising the following steps:
Installation site determines, determines that the root stress maximum position of gear to be installed is installation site；
Strain gauge prepares, and the bulk of strain gauge and the bottom clearance of gear to be installed match；
Polishing cleaning, the installation site of the tooth root of gear to be installed is polished and is cleaned；
Strain gauge installation, is pasted and fixed on installation site for strain gauge and is fixed；
Terminal installation, the terminal for being used for the lead of connecting test conducting wire and strain gauge is mounted on gear to be installed with answer
Become on the neighbouring non-working surface of the meter installation gear teeth；
Lead is distributed and fixes, and the lead of strain gauge two sides is laid along gullet base respectively, will be far from terminal side
Lead turns back or is pierced by from vibration damping hole and comes together in terminal with the lead of the other side afterwards and be fixedly connected with terminal so that lead with draw
Line, lead and strain gauge are non-overlapping.
As one of embodiment, lead distribution includes: with fixed step
The lead of strain gauge two sides is extended into distribution along gullet base where strain gauge respectively opposite to each other；
The lead that will be far from terminal side is connected to terminal, the lead of the other side after adjacent sheaves fold-back through gear face
Directly terminal is connected to along gullet base extension where strain gauge；
Terminal and two leads are connected and fixed.
As another embodiment, lead is distributed includes: with fixed step
The lead of strain gauge two sides is extended into distribution along gullet base where strain gauge respectively opposite to each other；
The lead that will be far from terminal side turns back from tooth socket where strain gauge, is arranged in parallel in the lead of itself and the other side
Gullet base where strain gauge, and extend and be connected to terminal；
The connecting portion of terminal and two leads is fixed.
As another optional embodiment, lead is distributed includes: with fixed step
The lead of strain gauge two sides is extended into distribution along gullet base where strain gauge respectively opposite to each other；
For there is the gear in vibration damping hole, the lead that will be far from terminal side is pierced by from vibration damping hole is connected to terminal, the other side
Lead directly where the strain gauge gullet base extension be connected to terminal；
The connecting portion of terminal and two leads is fixed.
Further, in lead distribution and fixed step, further includes:
When the lead of strain gauge two sides is laid along gullet base respectively, lead compartment point is first fixed on tooth with double-sided adhesive
Bottom makes lead be close to the straight extraction of gullet base, after then tentatively being fixed with adhesive, throws off double-sided adhesive and further fixes and draw
Line.
Further, in the step of strain gauge is installed, further includes: same tooth root is required the feelings of multiple strain gauges are installed
Each strain gauge is separately mounted to the corresponding position of different tooth roots by condition, so that tooth root one strain gauge of corresponding installation,
And each strain gauge respectively corresponds the corresponding radial height on gear to be installed.
Further, the step of strain gauge prepares further include: remove the former lead of strain gauge, replacement diameter is suitable for wait pacify
The fine enamelled wire of cogged bottom clearance reduces the solder joint height of fine enamelled wire and strain gauge as new lead.
Further, the bottom clearance of gear to be installed is not more than 0.7mm；The width of strain gauge is not more than 0.6mm；Fine enamelled wire
Diameter be not more than 0.15mm.
Further, further includes: flexible briquetting prepares, and molds and tooth-formation of gear to be installed in one end of flexible material
The pressing part to match, and pressing part is wrapped up with insulation film, the pressing part wrapped up was used in the step of strain gauge is installed
The strain gauge for being pasted onto installation site is pressed.
Further, polishing cleaning the step of include:
The installation site of the tooth root of gear to be installed is degreased；
Installation site is cleaned with alcohol or acetone；
With sand paper polishing installation site up to surfacing is bright and clean and has roughness；
Installation site is cleaned with alcohol or acetone again.
Further, strain gauge install the step of include: dots of adhesive is applied to the installation site of strain gauge, and with point mouth
Tweezers quickly transfer glue, keep glue-line uniform and thin, and strain gauge is then placed in installation site installation and is fixed.
Further, after lead is distributed and is fixed, further includes: moisture-proof anti-oil processing, moisture-proof grease proofing adhesive is equal
It is even to be coated on strain gauge and lead, the loosening of strain gauge or lead in the course of work is prevented, while preventing greasy dirt from infiltrating into and answering
Become the substrate of meter.
In method of the invention, by the non-work neighbouring with the strain gauge installation gear teeth that terminal is mounted on to gear to be installed
Make on face (including the positions such as gear face, former), since the space of non-working surface position is larger, the installation of terminal can be convenient for,
More spaces have been vacateed in the distribution for strain gauge and lead simultaneously, reduce the possibility that terminal is subject to crushing；The present invention is by strain gauge
The lead of two sides is laid along gullet base respectively, will be far from terminal side lead turn back after with the lead of the other side come together in end
Son is simultaneously fixedly connected with terminal, so that lead and lead, lead and strain gauge are non-overlapping, avoidable lead is overlapping to be caused to strain
Meter is subject to crushing during the work time, is reduced the failure risk of strain gauge installation failure, is improved the survival rate of strain gauge.The present invention
Solves the narrow Gear Root strain gauge installation problem of bottom clearance, to measure the Gear Root Stress side of providing using strain gauge
Method solves the problems, such as that strain gauge is difficult in the narrow Gear Root installation measurement of bottom clearance all the time.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the Gear Root strain gauge installation of the preferred embodiment of the present invention.
Drawing reference numeral explanation:
1, gear to be installed；10, tooth root；11, tooth socket；12, gear face；2, strain gauge；20, lead；3, terminal.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In the case where not destroying gear or shifting measurement point, bottom clearance is solved in 0.7mm tooth below
Strain gauge, lead etc. are easy nibbling after strain gauge is difficult to install in wheel Dedenda's bending stress and stress distribution measurement process and installation
The problem being subject to crushing during closing provides a kind of method of Gear Root installation small size strain gauge narrow in bottom clearance.
In conjunction with Fig. 1, the preferred embodiment of the present invention provides a kind of installation side of Gear Root strain gauge that bottom clearance is narrow
Method, comprising the following steps:
Installation site determines, determines that the root stress maximum position of gear 1 to be installed is installation site；
Strain gauge prepares, and the bulk of strain gauge 2 and the bottom clearance of gear 1 to be installed match；
Polishing cleaning, the installation site of the tooth root 10 of gear 1 to be installed is polished and is cleaned；
Strain gauge installation, is pasted and fixed on installation site for strain gauge 2 and is fixed；
Terminal installation, is mounted on gear 1 to be installed for the terminal for being used for the lead 20 of connecting test conducting wire and strain gauge 2
With the strain gauge installation gear teeth on neighbouring non-working surface；
Lead is distributed and fixes, and the lead 20 of 2 two sides of strain gauge is laid along 11 bottom of tooth socket respectively, will be far from terminal 3
The lead 20 of side turns back or is pierced by from vibration damping hole and comes together in terminal 3 with the lead 20 of the other side afterwards and be fixedly connected with terminal 3,
So that lead 20 and lead 20, lead 20 and strain gauge 2 are non-overlapping.
In method of the invention, neighbouring non-of the gear teeth is installed with strain gauge by the way that terminal 3 is mounted on gear 1 to be installed
On working face (including the positions such as gear face, former), since the space of non-working surface position is larger, the peace of terminal 3 can be convenient for
Dress, while more spaces have been vacateed in the distribution for strain gauge 2 and lead 20, are reduced strain gauge, lead, terminal and are subject to crushing
It may；The present invention lays the lead 20 of 2 two sides of strain gauge along 11 bottom of tooth socket respectively, will be far from the lead 20 of 3 side of terminal
Terminal 3 is come together in the lead 20 of the other side after fold-back and is fixedly connected with terminal 3, so that lead 20 and lead 20, lead 20
Non-overlapping with strain gauge 2, avoidable lead 20 is overlapping to cause strain gauge 2 to be subject to crushing during the work time, reduces strain gauge peace
The failure risk for filling failure, improves the survival rate of strain gauge 2.
Further, the step of strain gauge prepares is as follows:
1), small size strain gauge selects.
The bulk of strain gauge 2 and the bottom clearance of gear 1 to be installed match, enable strain gauge 2 really mounted in
The installation site of gear 1 is installed.The bottom clearance of the targeted gear of method of the invention is not more than 0.7mm, it is therefore desirable to strain gauge 2
Size is as small as possible.Preferably, the width of strain gauge 2 is not more than 0.6mm.
2) lead, is replaced.
So that strain gauge 2 is failed to avoid in Meshing Process of Spur Gear lead 20 from being pressed down, removes and answer in method of the invention
Become the former lead of meter 2, replacement diameter is suitable for the fine enamelled wire of gear bottom clearance to be installed as new lead, reduces fine enamelled wire
With the solder joint height of strain gauge 2.Specific operation process are as follows:
Strain gauge 2 is entirely placed on flat glass plate station, straight former lead is smoothed out with the fingers and is installed with strain gauge dedicated
Adhesive tape fixes strain gauge 2, removes the former lead of strain gauge 2 by tools such as visual amplifying operation system, sharp mouth tweezers, electric iron
It removes, is changed to the thinner fine enamelled wire of diameter, specific replaceable diameter, which is less than former lead and lossless can work in after installing, to be nibbled
The fine enamelled wire of gear is closed as new lead 20, and reduces the solder joint height of new lead 20 as far as possible.The present invention is former by strain gauge 2
Lead is changed to thinner fine enamelled wire, while reducing solder joint height, solves the Insulation Problems of lead 20, while saving as far as possible
Save space is arranged in the tooth socket 11 of the narrow gear of bottom clearance convenient for lead 20.In this preferred embodiment, the diameter of fine enamelled wire
No more than 0.15mm, to guarantee that it electrically connects performance, while reducing take up space and reduce solder joint height as far as possible.
Method of the invention further includes the steps that flexible briquetting prepares.
Specifically, in the present embodiment, flexible material is provided, is molded and gear 1 to be installed in one end of flexible material
The pressing part that tooth form matches, and pressing part is wrapped up with insulation film, the pressing part wrapped up is used for the step installed in strain gauge
The strain gauge for being pasted onto installation site is pressed in rapid.Using the compacting to match with the tooth form with gear 1 to be installed
The flexible briquetting in portion makes for subsequent compacting installation strain gauge 2 convenient for being operated in the narrow Gear Root 10 of bottom clearance
The strain gauge 2 of small size can consolidate installation to the installation site at tooth root 10.
In this preferred embodiment, takes rubber as flexible material, one end is whittled into the tooth form of gear 1 to be installed, is used in combination
Polytetrafluoroethylene film package is spare.Present invention preferably employs flexible materials to suppress installation strain gauge 2, convenient for narrow in bottom clearance
Gear Root 10 in operated, so that the strain gauge 2 of small size is consolidated installation to the installation site at tooth root 10.Poly- four
Fluoroethylene film wraps up pressing part can prevent flexible briquetting to be adhered to tooth root 10 using the high lubrication and non-stickiness of polytetrafluoroethylene (PTFE)
Place.In other embodiments, substrate of the flexible rubber as briquetting can also be used.Insulation film can also use epoxy resin
Etc. film made of other insulating materials to wrap up pressing part.
Further, installation method of the invention is further comprising the steps of: scribing line positioning, with marking pen in gear to be installed
The installation site of strain gauge 2 is marked at 1 tooth root 10.Method of the invention is first by the installation site of strain gauge 2 in tooth to be installed
It is marked on wheel 1 with thin marking pen, facilitates the subsequent installation for carrying out strain gauge 2, it is ensured that installation site is reliable.
The step of above-mentioned strain gauge prepares, flexible briquetting prepares, scribing line positioning, can sequentially carry out, specifically in no particular order
Depending on situations such as operator's quantity.
Followed by following steps: polishing cleaning.
In this preferred embodiment, specifically, the step of cleaning of polishing includes: by the installation of the tooth root 10 of gear 1 to be installed
Position degreases；Installation site is cleaned with alcohol or acetone；With sand paper polishing installation site until surfacing is bright and clean；Again
Installation site is cleaned with alcohol or acetone.The step of present invention is by polishing cleaning, installation site is polishing to smooth, can gone
Except impurity and guarantee certain installation roughness, guarantees the installation robust of subsequent strain gauge 2.The present embodiment is beaten using sand paper
Mill, tool is simple and reliable, at low cost.It in other embodiments, can also be using media such as trichloro ethylene, butanone, trichloroethanes
As cleaning solution, installation site can also be cleaned using flushing or ultrasonic cleaning mode.
Then, the step of strain gauge installation, terminal installation can be carried out.In the present invention, strain gauge installation steps and terminal are pacified
The step of dress in no particular order sequence.
In this preferred embodiment, the specific operation method is as follows for strain gauge installation:
Adhesive (such as CN glue) point is applied to installation site, and is quickly gently drawn glue along tooth socket 11 with sharp mouth tweezers
Dial, make glue-line uniformly and be unlikely to sunburner, then with tweezers by strain gauge 2 be placed in installation site and with flexibility briquetting on
The pressing part for being enclosed with polyester fiber film presses two minutes.
In this preferred embodiment, the terminal for being used for the lead 20 of connecting test conducting wire and strain gauge 2 is mounted on and is strained
On the neighbouring gear face 12 of the meter installation gear teeth, since the space of gear face 12 is larger, the installation of terminal 3 can be convenient for, simultaneously
Distribution for strain gauge 2 and lead 20 has vacateed more spaces while having reduced the possibility that terminal 3 is subject to crushing.In other embodiments
In, terminal can also be mounted on the former neighbouring with the strain gauge installation gear teeth, equally can reach the purpose of the present invention.
In the present invention, lead is distributed and is fixed with various ways.Mounting surface for gear face and its with other equipment
Between there is the case where minim gap (passing through for lead 20), the first way of label a meaning is as follows as shown in figure 1:
The lead 20 of 2 two sides of strain gauge is extended into distribution along 2 place tooth socket of strain gauge, 11 bottom respectively opposite to each other；
The lead 20 that will be far from 3 side of terminal is connected to terminal 3, the other side after the fold-back of adjacent sheaves 11 through gear face
Lead 20 directly along 2 place tooth socket of strain gauge, 11 bottom extend be connected to terminal 3；
Terminal 3 and the connecting portion of two leads 20 are fixed.
In above-mentioned steps, when the lead 20 of 2 two sides of strain gauge is laid along 11 bottom of tooth socket respectively, it will first be drawn with double-sided adhesive
20 compartment point of line is fixed on bottom of the tooth, so that lead 20 is close to 11 bottom flat of tooth socket and draws, then just with adhesive (such as CN glue)
After step is fixed, throws off double-sided adhesive and further fix lead 20.
In the present invention, two leads 20 of strain gauge 2 are distributed along two tooth sockets 11 as far as possible, between two leads 20, are drawn
It is non-overlapping between line 20 and strain gauge 2, be conducive to reduce the failure risk of strain gauge 2 during the work time.By 2 liang of strain gauge
Side lead 20 is distributed in adjacent sheaves 11 respectively, and a piece lead 20 of tooth socket 11 distribution can reduce to the greatest extent and draw
20 occupied space of line avoids lead 20 is overlapping strain gauge 2 is caused to be subject to crushing during the work time, reduces strain gauge installation failure
Risk improves the survival rate of strain gauge 2.
Label b is signified as shown in figure 1, and lead distribution and fixed another way are as follows:
The lead 20 of 2 two sides of strain gauge is extended into distribution along 2 place tooth socket of strain gauge, 11 bottom respectively opposite to each other；
It will be far from the lead 20 of 3 side of terminal to turn back from 2 place tooth socket 11 of strain gauge, make its lead 20 with the other side simultaneously
Row is arranged in 2 place tooth socket of strain gauge, 11 bottom, and extends to and be connected to terminal 3；
Terminal 3 and the connecting portion of two leads 20 are fixed.
Similarly, it can first be fixed with double-sided adhesive by a compartment along the lead 20 that tooth socket 11 is distributed and lead 20 is made to be close to tooth socket
11 bottom flats are drawn, then tentatively fixed with CN glue.
In another embodiment, for there is the gear in vibration damping hole, lead distribution and fixed mode are as follows:
The lead 20 of 2 two sides of strain gauge is extended into distribution along 2 place tooth socket of strain gauge, 11 bottom respectively opposite to each other；
For there is the gear in vibration damping hole, the lead 20 that will be far from 3 side of terminal is pierced by from vibration damping hole is connected to terminal 3, separately
The lead 20 of side, which directly extends along 2 place tooth socket of strain gauge, 11 bottom, is connected to terminal 3；
Terminal 3 and the connecting portion of two leads 20 are fixed.
Further, in the step of strain gauge is installed, is required for same tooth root 10 the case where installing multiple strain gauge 2,
Each strain gauge 2 is separately mounted to the corresponding position of different tooth roots 10, so that one strain of corresponding installation of a tooth root 10
Meter 2, and each strain gauge 2 respectively corresponds the corresponding radial height on gear 1 to be installed.
By tooth roots 10 different on gear be located at same radial height stress suffered by corresponding position circumferentially it is homogeneous
Together, therefore, each strain gauge 2 of the present invention is separately mounted to the corresponding position of different tooth roots 10, such as can be adjacent or phase
The corresponding position of nearly tooth root 10 guarantees that a tooth socket 11 installs a strain gauge 2, can effectively obtain 10 stress distribution of tooth root
It utmostly avoids strain gauge 2 or lead 20 to fail simultaneously, solves multiple in 10 stress distribution test process of Gear Root
Strain gauge problem difficult to install provides method for 10 bending stress distribution measuring of tooth root.
After lead 20 is tentatively fixed to terminal 3, terminal 3 and lead 20 are welded further fixation, guarantee that it is electrically led
Performance is connect, convenient for the progress of Gear Root Stress distribution tests.
Further, further comprising the steps of after lead is distributed and is fixed:
Moisture-proof grease proofing adhesive is uniformly coated on strain gauge 2 and lead 20, prevents the course of work by moisture-proof anti-oil processing
The loosening of middle strain gauge 2 or lead 20, while preventing greasy dirt from infiltrating into the substrate of strain gauge 2.Optionally, by 509 transparent gluings
Agent is uniformly frivolous to be coated on strain gauge 2 and lead 20, and strain gauge 2 or lead 20 can be further prevented in the course of work because of the gear teeth
Mesh impact and loosen, while preventing greasy dirt from penetrating into 2 substrate of strain gauge, strain gauge 2 caused to fall off.
Installation method of the invention does not need additionally to purchase, process other tools, and simple, convenient feasible, test is deposited
Motility rate is high, solves the problems, such as that the Gear Root that bottom clearance is narrow all the time can not install strain gauge, while being root stress point
Cloth measurement provides method.
Through testing, the installation method of the narrow Gear Root strain gauge of bottom clearance of the invention, using effect is good, for top
The narrow Gear Root Stress measurement effect of gap is significant, provides possibility for the real-time working condition measurement of Gear Root Stress.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of installation method for the Gear Root strain gauge that bottom clearance is narrow, which comprises the following steps:
Installation site determines, determines that the root stress maximum position of gear to be installed (1) is installation site；
Strain gauge prepares, and the bulk of the strain gauge (2) and the bottom clearance of gear to be installed (1) match；
Polishing cleaning, the installation site of the tooth root (10) of gear to be installed (1) is polished and is cleaned；
Strain gauge installation, is pasted and fixed on installation site for strain gauge (2) and is fixed；
Terminal installation, is mounted on gear to be installed (1) for the terminal for being used for the lead (20) of connecting test conducting wire and strain gauge (2)
With on the neighbouring non-working surface of the strain gauge installation gear teeth；
Lead is distributed and fixes, and the lead (20) of strain gauge (2) two sides is laid along tooth socket (11) bottom respectively, will be far from terminal
(3) lead (20) of side turns back or is pierced by from vibration damping hole comes together in terminal (3) and and terminal with the lead of the other side (20) afterwards
(3) it is fixedly connected, so that lead (20) and lead (20), lead (20) and strain gauge (2) are non-overlapping.
2. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that lead point
Cloth and the step of fixation include:
The lead (20) of strain gauge (2) two sides is extended into distribution along tooth socket (11) bottom where strain gauge (2) respectively opposite to each other；
The lead (20) that will be far from terminal (3) side is connected to terminal (3) after gear face turns back from adjacent sheaves (11), separately
The lead (20) of side, which directly extends along tooth socket (11) bottom where strain gauge (2), is connected to terminal (3)；
Terminal (3) and two leads (20) are connected and fixed.
3. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that lead point
Cloth and the step of fixation include:
The lead (20) of strain gauge (2) two sides is extended into distribution along tooth socket (11) bottom where strain gauge (2) respectively opposite to each other；
The lead (20) that will be far from terminal (3) side turns back from tooth socket (11) where strain gauge (2), makes its lead with the other side
(20) tooth socket (11) bottom where being arranged in parallel in strain gauge (2), and extend and be connected to terminal (3)；
Terminal (3) and the connecting portion of two leads (20) are fixed.
4. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that lead point
Cloth and the step of fixation include:
The lead (20) of strain gauge (2) two sides is extended into distribution along tooth socket (11) bottom where strain gauge (2) respectively opposite to each other；
For there is the gear in vibration damping hole, the lead (20) that will be far from terminal (3) side is pierced by from vibration damping hole is connected to terminal (3),
The lead (20) of the other side, which directly extends along tooth socket (11) bottom where strain gauge (2), is connected to terminal (3)；
Terminal (3) and the connecting portion of two leads (20) are fixed.
5. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that lead point
In cloth and fixed step, further includes:
By the lead (20) of strain gauge (2) two sides respectively along tooth socket (11) bottom lay when, first with double-sided adhesive by lead (20) every
Section point is fixed on bottom of the tooth, so that lead (20) is close to tooth socket (11) bottom flat and draws, after then tentatively being fixed with adhesive, throws off
Double-sided adhesive further fixes lead (20).
6. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that strain gauge
In the step of installation, further includes:
The case where installing multiple strain gauge (2), is required for same tooth root (10), each strain gauge (2) is separately mounted to difference
Tooth root (10) corresponding position so that tooth root (10) one strain gauge (2) of corresponding installation, and each strain gauge (2) point
The corresponding radial height that Dui Ying be on gear to be installed (1).
7. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that strain gauge
The step of preparation further include:
The former lead of strain gauge (2) is removed, replacement diameter is suitable for the fine enamelled wire of gear bottom clearance to be installed as new lead
(20), the solder joint height of fine enamelled wire and strain gauge (2) is reduced.
8. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 7, which is characterized in that
The bottom clearance of the gear to be installed (1) is not more than 0.7mm；
The width of the strain gauge (2) is not more than 0.6mm；
The diameter of the fine enamelled wire is not more than 0.15mm.
9. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that also wrap
It includes:
Flexible briquetting prepares, and the pressing part to match with the tooth form of gear to be installed (1) is molded in one end of flexible material, and
Pressing part is wrapped up with insulation film, and the pressing part wrapped up is used in the strain gauge installation the step of to being pasted onto installation site
Strain gauge is pressed.
10. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that polishing
The step of cleaning includes:
The installation site of the tooth root (10) of gear to be installed (1) is degreased；
Installation site is cleaned with alcohol or acetone；
With sand paper polishing installation site up to surfacing is bright and clean and has roughness；
Installation site is cleaned with alcohol or acetone again.
11. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that strain
Counting the step of installing includes:
Dots of adhesive is applied to the installation site of strain gauge (2), and quickly transfers glue with sharp mouth tweezers, keeps glue-line thin and equal
It is even, strain gauge (2) is then placed in installation site installation and is fixed.
12. the installation method of the narrow Gear Root strain gauge of bottom clearance according to claim 1, which is characterized in that drawing
After line is distributed and is fixed, further includes:
Moisture-proof grease proofing adhesive is uniformly coated on strain gauge (2) and lead (20), prevents the course of work by moisture-proof anti-oil processing
The loosening of middle strain gauge (2) or lead (20), while preventing greasy dirt from infiltrating into the substrates of strain gauge (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110686066A (en) * | 2019-09-20 | 2020-01-14 | 中国飞行试验研究院 | Transmission system and gear strain measuring point acquisition method |
| CN113008549A (en) * | 2021-04-12 | 2021-06-22 | 宁波大学 | Variable-size RV reducer planetary gear stress measuring device and method |
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| CN115930811A (en) * | 2023-01-03 | 2023-04-07 | 中国特种设备检测研究院 | Gear meshing clearance and defect detection monitoring devices and system |
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| CN109357605B (en) | 2020-12-08 |
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