CN110361283A - A kind of high temperature fretting wear experimental rig - Google Patents
A kind of high temperature fretting wear experimental rig Download PDFInfo
- Publication number
- CN110361283A CN110361283A CN201910642599.1A CN201910642599A CN110361283A CN 110361283 A CN110361283 A CN 110361283A CN 201910642599 A CN201910642599 A CN 201910642599A CN 110361283 A CN110361283 A CN 110361283A
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- CN
- China
- Prior art keywords
- transmission rod
- bistrique
- high temperature
- experimental rig
- snap ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
Abstract
The application belongs to fatigue test field, in particular to a kind of high temperature fretting wear experimental rig.It include: vertical columns, snap ring, transmission rod, bistrique, pressurized strut column and heating furnace.Sample is mounted on fatigue tester vertical columns and pressurized strut column.According to test demand, after adjusting bistrique and sample contacts position, symmetrical snap ring is fastened on vertical columns by bolt, transmission rod is connect by pin shaft with snap ring, bistrique is fixed on transmission rod lower end, realize that the contact position of bistrique and sample adjusts by the locking nut of two sides, to guarantee that the two extruding force is always forward extrusion power.Adjustment heating furnace position avoids touching experimental rig, and closure heating furnace is heated.After being heated to assigned temperature held for some time, the pallet for calculating good quality and counterweight are hanging to one end of the transmission rod outside heating furnace, and keep the forward extrusion power of bistrique and sample during the test.The application structure is simple, has biggish economic and practical and experimental study.
Description
Technical field
The application belongs to fatigue test field, in particular to a kind of high temperature fretting wear experimental rig.
Background technique
In aero-engine structure, the operating conditions such as fatigue, vibration will lead to the contact of various press-fits such as disk tenon structure etc.
There is micro opposite slide displacement in surface, leads to fretting wear, and then influence the normal work and safe life of component.
Molding friction wear testing machine has application, but for the research of fretting wear, simple fretting wear
Testing machine is difficult to meet the scientific research needs of fretting fatigue, and the inching gear of related designed, designed also tends to can only be at room temperature
It carries out, it is difficult to meet the research needs of fretting wear under the conditions of aero-engine worst hot case.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
The purpose of the application there is provided a kind of high temperature fretting wear experimental rig, with solve it is of the existing technology at least
One problem.
The technical solution of the application is:
A kind of high temperature fretting wear experimental rig, comprising:
Vertical columns, the vertical columns bottom are provided with sample；
Snap ring, the snap ring are fixed on the vertical columns, are symmetrically arranged with first connecting portion on the snap ring
And second connecting portion；
Transmission rod, it is L-shaped, including the first transmission rod and the second transmission rod, the of first transmission rod and the snap ring
One interconnecting piece is hinged, and the second connecting portion of second transmission rod and the snap ring is hinged, first transmission rod and described
One end of two transmission rods is provided with pallet and counterweight；
The other end of first transmission rod is arranged in bistrique, including the first bistrique and the second bistrique, first bistrique,
The other end of second transmission rod is arranged in second bistrique, and first bistrique and second bistrique are used for from left and right
Both ends load the sample；
The bottom end of the sample is arranged in pressurized strut column, the pressurized strut column, for loading to the sample；
The outside of the sample is arranged in heating furnace, the heating furnace.
Optionally, the snap ring is fixedly connected by bolt with the vertical columns.
Optionally, the first connecting portion on the snap ring and second connecting portion are ears structure.
Optionally, it is hinged with the snap ring to pass through pin shaft for first transmission rod and second transmission rod.
Optionally, the transmission rod includes horizontal segment and vertical section, and the end of horizontal segment is arranged the pallet and counterweight, erects
The end of straight section offers mounting hole, and the center of gravity of vertical section and the pin shaft are on same vertical line.
Optionally, the bistrique includes bar portion and head, and the bar portion is provided with screw thread, and the bar portion passes through locking nut
It is installed in the mounting hole of the transmission rod vertical section, the head is for loading the sample.
Optionally, each bar portion passes through the installation that two locking nuts are installed to the transmission rod vertical section
Kong Zhong.
Optionally, the head is rounded.
Optionally, the head is square.
Optionally, the transmission rod, the bistrique and the locking nut are high temperature alloy product.
At least there are following advantageous effects in invention:
The high temperature fretting wear experimental rig of the application, package unit is simple in high temperature structure in the stove, and loading device is placed in
Furnace is outer rationally to avoid hot environment compared with distant positions, and the secondary extruding force that rubs assigns simple and effective；Using nothing after the experimental rig
Wear equipment, which need to be purchased, can carry out high temperature fretting wear experimental study, have biggish economic and practical and experimental study.
Detailed description of the invention
Fig. 1 is the high temperature fretting wear experimental rig schematic diagram of one embodiment of the application；
Fig. 2 is the snap ring schematic diagram of the high temperature fretting wear experimental rig of one embodiment of the application；
Fig. 3 is the transmission rod schematic diagram of the high temperature fretting wear experimental rig of one embodiment of the application；
Fig. 4 is the bistrique schematic diagram of the high temperature fretting wear experimental rig of one embodiment of the application；
Fig. 5 is the bistrique schematic diagram of the high temperature fretting wear experimental rig of the application another embodiment.
Wherein:
1- transmission rod；2- pin shaft；3- snap ring；4- pallet；5- bistrique；6- sample；7- locking nut；8- vertical columns；9-
Heating furnace；10- pressurized strut column.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the application
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
In explanation the application, and it should not be understood as the limitation to the application.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.Under
Face is described in detail embodiments herein in conjunction with attached drawing.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of description the application and simplifies description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the application
The limitation of range.
1 to Fig. 5 the application is described in further details with reference to the accompanying drawing.
This application provides a kind of high temperature fretting wear experimental rigs, comprising: vertical columns 8, snap ring 3, transmission rod 1, mill
First 5, pressurized strut column 10 and heating furnace 9.
Specifically, 8 bottom of vertical columns is provided with sample 6, snap ring 3 is fixed on vertical columns 8, right on snap ring 3
Title is provided with first connecting portion and second connecting portion, and transmission rod 1 is L-shaped, including the first transmission rod and the second transmission rod, and first passes
Power bar and the first connecting portion of snap ring 3 are hinged, and the second connecting portion of the second transmission rod and snap ring 3 is hinged, the first transmission rod and
One end of two transmission rods is provided with pallet 4 and counterweight；Bistrique 5 includes the first bistrique and the second bistrique, and the setting of the first bistrique exists
The other end of the second transmission rod, the first bistrique and the second bistrique is arranged in for dividing in the other end of first transmission rod, the second bistrique
Sample 6 is not loaded from left and right ends；The bottom end of sample 6 is arranged in pressurized strut column 10, for adding to sample 6
It carries；The outside of sample 6 is arranged in heating furnace 9, for providing high temperature loading environment for sample 6.
In the embodiment of the application, snap ring 3 includes two semicircular structures, and two semicircular structures are set in
It is bolted on vertical columns 8, each semicircular structure reaches and is provided with an ears structure, and two transmission rods 1 divide
Not Tong Guo pin shaft 2 and ears structure it is hinged.
In the embodiment of the application, transmission rod 1 includes horizontal segment and vertical section, the company of horizontal segment and vertical section
The place of connecing offers through-hole, and pin shaft 2 passes through should be by the way that transmission rod 1 to be connect with snap ring 3.Support is arranged in the end of 1 horizontal segment of transmission rod
Disk 4 and counterweight, the end of vertical section offers mounting hole, and the center of gravity of vertical section and pin shaft 2 are on same vertical line.
In the embodiment of the application, bistrique 5 includes bar portion and head, and bar portion is provided with screw thread, and bar portion passes through
The locking nut 7 of two sides is installed in the mounting hole of 1 vertical section of transmission rod, and head is for loading sample 6.The present embodiment
In, it can be according to test needs, designed, designed bistrique 5 (such as head is rounded or rectangular) and 6 form of sample (such as stick or the examination of plate shape
Sample) to simulate a variety of contact modes, or cooperation fatigue tester carries out component and the high temperature fretting wear test of simulating piece is ground
Study carefully, such as bearing.For different bistrique 5 and 6 extrusion friction form of sample, it can use the solution of Hertz elastic contact theory and connect
Contacting surface stress distribution is designed for special bistrique, bistrique and bar can also be made into unpack format.
The high temperature fretting wear experimental rig of the application, due to being related to hot environment, apparatus structure preferentially selects in selection
High temperature alloy is selected to guarantee that the high-temperature behavior of device, furnace exterior point can carry out selection according to the actual situation.In the present embodiment, power transmission
Bar 1, bistrique 5 and locking nut 7 are high temperature alloy product.
As shown in figure 3, consider that transmission rod 1 will have enough rigidity to come selection and design section size in design, according to
The testpieces design and installation mode of whole system is analyzed, the 1 horizontal segment self gravity of the both ends AB load and transmission rod of transmission rod 1
F1Equilibrium state is in relative to the group resultant bending moment at pin shaft 2.Wherein M1It is curved caused by 1 horizontal segment own wt of transmission rod
Square, the center of gravity and pin shaft 2 of 1 vertical section of transmission rod are in same vertical line, so not generating moment of flexure；M2It is pallet 4 and addition counterweight
Moment of flexure caused by weight；M3It is forward extrusion power F at bistrique 5 and 6 surface of sample3Generated moment of flexure.It is flat by Fig. 3 torque
Weighing apparatus signal map analysis is it is found that will make transmission rod 1 bistrique 5 and 6 surface perpendicular contact of sample and apply positive pressure when hang counterweight
Power, transmission rod 1 should keep position shown in Fig. 3, and moment of flexure should be at equilibrium state at this time, need to meet M3=M1+M2, set according to test
Count the bistrique 5 and 6 forward extrusion power F of sample of demand available first3, L1、L2、L3With calliper to measure, it is accurate to 0.1mm, into
And obtain M3And M1, solve M2It can be learnt that the corresponding counterweight that should be selected.
According to the formula of moment of flexure: M1=F1*L1, M2=F2*L2, M3=F3*L3。
According to moment of flexure equation of equilibrium: M3=M1+M2, it obtains:
Pallet 4 and the weight F for adding counterweight2:
Test counterweight selection criteria counterweight, it is ensured that the accurate addition of load can pass through force value sensor before formal test
Extruding force F is carried out to bistrique 5 and 6 surface of sample3Verifying and calibration.
Sample 6 is mounted on fatigue tester vertical columns 8 and pressurized strut by the high temperature fretting wear experimental rig of the application
On column 10.According to test demand, symmetrical snap ring 3 is fastened on admittedly with after 6 contact position of sample by bolt by adjustment bistrique 5
Determine on column 8, transmission rod 1 is connect by pin shaft 2 with snap ring 3, and bistrique 5 is fixed on 1 lower end of transmission rod, by the locking screw of two sides
Mother 7 realizes that the contact position of bistrique 5 and sample 6 adjusts, and is always forward extrusion power with both guarantees extruding force.Adjust heating furnace
9 positions avoid touching experimental rig, and closure heating furnace is heated.After being heated to assigned temperature held for some time, it will count
The pallet 4 and counterweight for calculating good quality are hanging to one end of the transmission rod 1 outside heating furnace 9, and keep during the test bistrique 5 with
The forward extrusion power of sample 6.
After installation, adjustment, test procedure setting is carried out by the control computer of fatigue tester, select stress or
Bit andits control program starts to test after inputting test frequency and all inferior parameters of target circulation, and pressurized strut column 10 will drive and try
Controllable fine motion displacement occurs for sample 6 and fretting wear occurs for bistrique 5.
The high temperature fretting wear experimental rig of the application, high temperature can not be carried out by solving general material mechanical performance laboratory
The problem of experimental study of fretting wear.Sample is arranged in high temperature furnace, and loading device is placed in outside furnace compared with distant positions, rationally avoids
Hot environment, the secondary extruding force that rubs assign simple and effective.Using the device of the application, can be opened without purchasing wear equipment
High temperature fretting wear experimental study is opened up, there is biggish economic and practical and experimental study.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of high temperature fretting wear experimental rig characterized by comprising
Vertical columns (8), vertical columns (8) bottom are provided with sample (6)；
Snap ring (3), the snap ring (3) are fixed on the vertical columns (8), and is symmetrically arranged on the snap ring (3)
One interconnecting piece and second connecting portion；
Transmission rod (1), it is L-shaped, including the first transmission rod and the second transmission rod, first transmission rod and the snap ring (3)
First connecting portion is hinged, and the second connecting portion of second transmission rod and the snap ring (3) is hinged, first transmission rod and institute
The one end for stating the second transmission rod is provided with pallet (4) and counterweight；
The other end of first transmission rod is arranged in bistrique (5), including the first bistrique and the second bistrique, first bistrique,
The other end of second transmission rod is arranged in second bistrique, and first bistrique and second bistrique are used for from left and right
Both ends load the sample (6)；
Pressurized strut column (10), pressurized strut column (10) setting is in the bottom end of the sample (6), for the sample
(6) it is loaded；
Heating furnace (9), outside of heating furnace (9) setting in the sample (6).
2. high temperature fretting wear experimental rig according to claim 1, which is characterized in that the snap ring (3) passes through bolt
It is fixedly connected with the vertical columns (8).
3. high temperature fretting wear experimental rig according to claim 2, which is characterized in that first on the snap ring (3)
Interconnecting piece and second connecting portion are ears structure.
4. high temperature fretting wear experimental rig according to claim 3, which is characterized in that first transmission rod and described
Second transmission rod and the snap ring (3) are hinged by pin shaft (2).
5. high temperature fretting wear experimental rig according to claim 1, which is characterized in that the transmission rod (1) includes water
The pallet (4) and counterweight is arranged in flat section and vertical section, the end of horizontal segment, and the end of vertical section offers mounting hole, and perpendicular
The center of gravity of straight section and the pin shaft (2) are on same vertical line.
6. high temperature fretting wear experimental rig according to claim 5, which is characterized in that the bistrique (5) includes bar portion
And head, the bar portion are provided with screw thread, the bar portion is installed to the transmission rod (1) vertical section by locking nut (7)
In mounting hole, the head is for loading the sample (6).
7. high temperature fretting wear experimental rig according to claim 6, which is characterized in that each bar portion passes through two
A locking nut (7) is installed in the mounting hole of the transmission rod (1) vertical section.
8. high temperature fretting wear experimental rig according to claim 6, which is characterized in that the head is rounded.
9. high temperature fretting wear experimental rig according to claim 6, which is characterized in that the head is square.
10. high temperature fretting wear experimental rig according to claim 6, which is characterized in that the transmission rod (1), described
Bistrique (5) and the locking nut (7) are high temperature alloy product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642599.1A CN110361283A (en) | 2019-07-16 | 2019-07-16 | A kind of high temperature fretting wear experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910642599.1A CN110361283A (en) | 2019-07-16 | 2019-07-16 | A kind of high temperature fretting wear experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110361283A true CN110361283A (en) | 2019-10-22 |
Family
ID=68219744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910642599.1A Pending CN110361283A (en) | 2019-07-16 | 2019-07-16 | A kind of high temperature fretting wear experimental rig |
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| Country | Link |
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| CN (1) | CN110361283A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947907A (en) * | 2020-08-10 | 2020-11-17 | 二重（德阳）重型装备有限公司 | High-temperature fretting friction bench test device |
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| CN102279137A (en) * | 2011-06-30 | 2011-12-14 | 西安交通大学 | Tangential fretting test device and test method thereof |
| CN203231962U (en) * | 2012-11-03 | 2013-10-09 | 中国矿业大学 | End twist friction and abrasion tester for dynamically observing friction interface in real time |
| CN105043976A (en) * | 2015-07-28 | 2015-11-11 | 南京航空航天大学 | Test device for dynamically measuring fretting pair frictional coefficient during fretting fatigue process and test method |
| US20170153171A1 (en) * | 2015-10-28 | 2017-06-01 | United States Department Of Energy | Wear Test Apparatus |
| CN108871991A (en) * | 2018-08-17 | 2018-11-23 | 西南交通大学 | A kind of gravitational load type fretting wear testing equipment that can simulate hot environment |
| CN109297850A (en) * | 2018-12-14 | 2019-02-01 | 中国航发沈阳发动机研究所 | Reciprocating friction abrasion test device |
| CN109612855A (en) * | 2018-12-12 | 2019-04-12 | 同济大学 | A kind of fretting fatigue testing device for High Temperature Rotating fatigue bending machine |
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2019
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| CN102279137A (en) * | 2011-06-30 | 2011-12-14 | 西安交通大学 | Tangential fretting test device and test method thereof |
| CN203231962U (en) * | 2012-11-03 | 2013-10-09 | 中国矿业大学 | End twist friction and abrasion tester for dynamically observing friction interface in real time |
| CN105043976A (en) * | 2015-07-28 | 2015-11-11 | 南京航空航天大学 | Test device for dynamically measuring fretting pair frictional coefficient during fretting fatigue process and test method |
| US20170153171A1 (en) * | 2015-10-28 | 2017-06-01 | United States Department Of Energy | Wear Test Apparatus |
| CN108871991A (en) * | 2018-08-17 | 2018-11-23 | 西南交通大学 | A kind of gravitational load type fretting wear testing equipment that can simulate hot environment |
| CN109612855A (en) * | 2018-12-12 | 2019-04-12 | 同济大学 | A kind of fretting fatigue testing device for High Temperature Rotating fatigue bending machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111947907A (en) * | 2020-08-10 | 2020-11-17 | 二重（德阳）重型装备有限公司 | High-temperature fretting friction bench test device |
| CN111947907B (en) * | 2020-08-10 | 2021-09-21 | 二重（德阳）重型装备有限公司 | High-temperature fretting friction bench test device |
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Application publication date: 20191022 |