CN108362598A - A kind of multi-functional piston-cylinder System friction-wear test test machine - Google Patents
A kind of multi-functional piston-cylinder System friction-wear test test machine Download PDFInfo
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- CN108362598A CN108362598A CN201810454276.5A CN201810454276A CN108362598A CN 108362598 A CN108362598 A CN 108362598A CN 201810454276 A CN201810454276 A CN 201810454276A CN 108362598 A CN108362598 A CN 108362598A
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- 238000012360 testing method Methods 0.000 title claims abstract description 218
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- 229910000831 Steel Inorganic materials 0.000 claims description 10
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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
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/567—Investigating resistance to wear or abrasion by submitting the specimen to the action of a fluid or of a fluidised material, e.g. cavitation, jet abrasion
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- 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
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Abstract
The invention discloses a kind of multi-functional piston-cylinder system friction wear test test machines, belong to mechanical friction wear testing field, the problems such as situation of fretting wear in actual work and low friction measurement precision of the present invention in order to solve the reflection piston-cylinder system that existing frictional testing machine cannot be true and reliable, in the case of non-real machine ignition, it is driving with speed regulating motor, by using simple open structure：Special floated cylinder sleeve, linear bearing type piston skirt, cylinder pressure simulation mechanism, piston ring radial load elasticity adjustment structure etc., pressure, temperature, the vibration etc. of high-precision analog engine real work situation, piston-cylinder system friction wear test and high-acruracy survey frictional force are carried out, the influence to experimental test such as actual engine high temperature, vibration is avoided.In addition, this test machine can also carry out the associated friction wear test test of plunger type air compressor.
Description
Technical field
The present invention relates to a kind of multi-functional piston-cylinder System friction-wear test test machines, belong to material friction abrasion
Testing field.
Background technology
Piston-cylinder liner system is widely used in the equipment such as internal combustion engine, air compressor.For engine,
The fretting wear of piston-cylinder liner system occupies very big proportion in whole mechanical loss, accounts for about engine complete machine mechanical friction damage
50% or so lost, and the friction and wear failure of piston-cylinder liner system is the main reason for mechanism damages.Piston-cylinder liner
Fuel of internal combustion engine economy, raising internal combustion engine are discharged and improved to the application of system low friction technology to reducing friction loss, reducing
Working life all has extremely important practical significance.
Existing friction wear testing machine is the friction wear testing machine for material properties mostly, as pin disk-type friction is tested
Machine etc. can not fully reflect the fretting wear situation in engine piston-cylinder System operation process.Moreover, for living
The test of the fretting wear of plug-cylinder System substantially uses simple toggle, makes the friction pair of research at present
Realize reciprocating；Or remove crank connecting link, and using linear motor form, the secondary straight reciprocating motion of driving friction, and
Engine machine ignition formula carries out friction and wear test etc. under prototype operating condition.These test modes, or it is too simple
Single, simulated engine has certain limitation, and test condition is too wide in the gap with engine real work situation, cannot reflect completely
Test the fretting wear situation of piston-cylinder liner system；Or such as real machine test, manufacture and testing expenses are expensive, especially survey
Precision is tried to be easy by influences such as the high temperature of engine, high pressure, high speed, high pollutions.Seek to have higher reliability, durability and
The friction-wear test test machine of test accuracy and economy is ground always in continuous carry out to enterprise and colleges and universities etc.
Study carefully engine friction abrasion and brings very big research topic.
Therefore it provides a kind of accurate and reliable, high performance-price ratio friction-wear test for piston-cylinder liner system is tested
Machine studies the fretting wear situation of the system under physical condition, is very significant.
Invention content
The present invention cannot completely reliable reflection and test piston-cylinder liner in order to solve existing conventional friction abrasion tester
The problem of fretting wear situation of system, provides a kind of multi-functional piston-cylinder System friction-wear test test machine, overcomes general
Logical toggle, the measuring accuracy of power test is low, overcomes the limitation measured when engine prototype ignition,
Without under prototype ignition conditions, by simple simulation mechanism, the piston ring of accurate simulated engine is to cylinder sleeve, piston skirt
Fretting wear of the portion to cylinder sleeve, while the frictional force (can be carried out at the same time, can also carry out respectively) between these friction pairs is measured, and
Due to reasonable, direct sensor arrangement, the system is made to have the function of accurate collecting measurement data.In addition, this test machine
The fretting wear that the piston-cylinder liner system of other forms can also be simulated, such as the friction of the piston-cylinder liner system of air compressor
Abrasion.
The purpose of the present invention is what is be achieved through the following technical solutions, in conjunction with attached drawing：
A kind of multi-functional piston-cylinder System friction-wear test test machine, including experimental test machine support 1, power part
Sub-stent 2, frequency control motor 3, speed changer 4, torque rotational speed detector 5, test machine supporting mechanism；The power section holder
2 are fixed on adjacent with test machine supporting mechanism are tested on machine support 1；Frequency conversion rotating speed adjustable motor 3, speed changer 4 and torque rotating speed
Tester 5 is adjacent successively to be fixed on power section holder 2；Frequency conversion rotating speed adjustable motor 3 passes through yielding coupling and speed changer 4
Input terminal connects, and 4 output end of speed changer is connect by yielding coupling with torque rotational speed detector 5, and test machine piston crank connects
Linkage 7 is coupled by yielding coupling with torque rotational speed detector；Test machine supporting mechanism includes braced frame and test machine
Pilot sleeve supporting mechanism, test machine housing supports mechanism are mounted in braced frame, and test machine piston-cylinder 7-4, which suspends, to be installed
In test machine pilot sleeve supporting mechanism, and testing friction force snesor is directly connected to friction pair, high strong spring 7-5 installations
Both at the top of the special piston 7-3 of test machine, test machine piston crank link mechanism 7 is connect with torque rotational speed detector 5, pass through
Complete the test of the frictional force and toggle rotating speed between friction pair.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the test machine supporting device
Scaffold includes support plate a7, support plate b8, support plate c9, and support plate a7, support plate b8, support plate c9 are fixed side by side successively
On experiment machine support 1；Test machine pilot sleeve 11 is mounted on by bolt between support plate b8 and support plate c9.Test machine set
Cylinder supporting mechanism include test machine cylinder sleeve pilot sleeve 11, test machine cylinder sleeve pilot sleeve 11 by bolt respectively with support plate a,
B connections,
A kind of multi-functional piston-cylinder System friction-wear test test machine, the support plate b8 and support plate
Multiple load cells are equipped on c9, test machine piston-cylinder 7-4 passes through steel ball and, composition suspension equipped with pilot sleeve 11
The both ends of cylinder sleeve, test machine piston-cylinder 7-4 are contacted with load cell, and the test special piston 7-3 of test machine lives with test machine
Plug cylinder covers the frictional force between 7-4.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the special tops piston 7-3 of test machine
High strong spring 7-5 is installed between support plate c9, by the spring of different-stiffness, in the case of simulated engine difference stroke, cylinder
The active force to top land is pressed, to obtain the lateral pressure of casing wall suffered by the skirt sections test machine special piston 7-3.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the skirt sections test machine special piston 7-3
Periphery is linear roller bearing form, inside has small steel ball 15 rolling rolling cycle in circulating slot.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the front ends test machine special piston 7-3
Indent is internally provided with elastic pressure regulating mechanism.
A kind of multi-functional piston-cylinder System friction-wear test test machine, elastic pressure regulating mechanism include
Elastic rubber 22,22 front and back end of elastic rubber are respectively equipped with pad pressing plate 16, the special piston 7-3 of test machine are fixed on by bolt 21
Front end is pushed up in indent, and 22 periphery of elastic rubber is equipped with segmentation annulus guard ring 20, and 20 external contact of segmentation annulus guard ring has pressure biography
Sensor 19,19 other end of pressure sensor are contacted by pin 17 with piston ring 18.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the test machine cylinder sleeve guide sleeve
11 peripheries of cylinder are wound with resistive heater 13.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the test machine cylinder sleeve guide sleeve
Vibration excitation device 14 is installed on cylinder 11.
A kind of multi-functional piston-cylinder System friction-wear test test machine, outside the test machine piston skirt
It is equipped with annular groove track week, it is interior to contain multiple small steel balls 15.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the test machine piston rod machine
Structure bottom is equipped with oil sump 12, and oil pump mechanism and resistive heater are equipped in oil sump 12.
Description of the drawings
Fig. 1 is structure of the invention axonometric schematic diagram；
Fig. 2 is structure of the invention axonometric schematic diagram；
Fig. 3 is test machine piston crank mechanism decomposition texture schematic diagram in the present invention；
Fig. 4 is test machine piston crank mechanism structural schematic diagram in the present invention；
Fig. 5 is test machine supporting mechanism structural schematic diagram in the present invention；
Fig. 6 is test machine suspension cylinder sleeve structural scheme of mechanism in the present invention；
Fig. 7 is resistive heater and vibration exciter schematic diagram on test machine pilot sleeve in the present invention；
Fig. 8 is the test machine suspension cylinder sleeve mechanism sectional view that cylinder sleeve friction wear is tested in the present invention；
Fig. 9 is the test machine special piston partial sectional view of test cylinder sleeve and piston-ring friction abrasion in the present invention；
Figure 10 is the test machine special piston sectional view that cylinder sleeve friction wear is tested in the present invention.
In figure：
1 experiment machine support, 2 power sections (generator, speed changer, torque rotational speed detector) holder, 3 frequency controls electricity
Machine, 4 speed changers, 5 torque rotational speed detectors, 6 support plate a, 7 test machine piston crank link mechanisms, 8 support plate b, 9 support plates
C, 10 fastening leading screws, 11 test machine cylinder sleeve pilot sleeves, 12 oil sumps, 13 resistive heaters, 14 vibration exciters, 15 small steel
Pearl, 16 backing plates, 17 pins, 18 piston rings, 19 pressure sensors, 20 segmentation annulus guard rings, 21 adjustment bolts, 22 elastic rubbers,
7-1 tests machine crankshaft, 7-2 test machine connecting rods, the special piston of 7-3 test machines, 7-4 test machine piston-cylinders, 11 test machine cylinder sleeves
Pilot sleeve, 7-5 high strong springs, 8-1,8-2,8-3,8-4 are respectively the load cell on support plate b, 9-1,9-2,9-3,
9-4 is respectively the load cell on support plate c.
Specific implementation mode
Technical scheme of the present invention is introduced below in conjunction with attached drawing：
A kind of multi-functional piston-cylinder System friction-wear test test machine, including experimental test machine support 1, power part
Sub-stent 2, frequency control motor 3, speed changer 4, torque rotational speed detector 5, test machine supporting mechanism；The power section holder
2 are fixed on adjacent with test machine supporting mechanism are tested on machine support 1；Frequency conversion rotating speed adjustable motor 3, speed changer 4 and torque rotating speed
Tester 5 is adjacent successively to be fixed on power section holder 2；Frequency conversion rotating speed adjustable motor 3 passes through yielding coupling and speed changer 4
Input terminal connects, and 4 output end of speed changer is connect by yielding coupling with torque rotational speed detector 5, and test machine piston crank connects
Linkage 7 is coupled by yielding coupling with torque rotational speed detector；Test machine supporting mechanism includes braced frame and test machine
Pilot sleeve supporting mechanism, test machine housing supports mechanism are mounted in braced frame, and test machine piston-cylinder 7-4, which suspends, to be installed
In test machine pilot sleeve supporting mechanism, and testing friction force snesor is directly connected to friction pair, high strong spring 7-5 installations
Both at the top of the special piston 7-3 of test machine, test machine piston crank link mechanism 7 is connect with torque rotational speed detector 5, pass through
Complete the test of the frictional force and toggle rotating speed between friction pair.
The scaffold of the test machine supporting device includes support plate a7, support plate b8, support plate c9, support plate a7,
Support plate b8, support plate c9 are fixed on side by side successively on experiment machine support 1；Test machine pilot sleeve 11 is mounted on branch by bolt
Between board b8 and support plate c9.Test machine housing supports mechanism includes that test machine cylinder sleeve pilot sleeve 11, test machine cylinder sleeve are led
It is connect respectively with support plate a, b by bolt to sleeve 11,
Multiple load cells are equipped on the support plate b8 and support plate c9, test machine piston-cylinder 7-4 passes through steel
Pearl is equipped with pilot sleeve 11, constitutes suspension cylinder sleeve, the both ends of test machine piston-cylinder 7-4 and the dynamometry on support plate
Sensor contacts test the frictional force between the special piston 7-3 and test machine piston-cylinder 7-4 of test machine machine.In support plate b8
It is upper there are four pressure sensor 8-1,8-2,8-3,8-4, pressure sensor 9-1,9-2,9-3,9-4 there are four support plate c9 is upper, 8
A pressure sensor is for testing the special piston 7-3 upper piston rings of test machine machine and piston skirt and test machine piston-cylinder 7-4
Between frictional force.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the special tops piston 7-3 of test machine
High strong spring 7-5 is installed between support plate c9, by the spring of different-stiffness, in the case of simulated engine difference stroke, cylinder
The active force to top land is pressed, to obtain the lateral pressure of casing wall suffered by the skirt sections test machine special piston 7-3.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the skirt sections test machine special piston 7-3
Periphery is linear roller bearing form, inside has small steel ball 15 rolling rolling cycle in circulating slot.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the front ends test machine special piston 7-3
Indent is internally provided with elastic pressure regulating mechanism.
A kind of multi-functional piston-cylinder System friction-wear test test machine, elastic pressure regulating mechanism include
Elastic rubber 22,22 front and back end of elastic rubber are respectively equipped with pad pressing plate 16, the special piston 7-3 of test machine are fixed on by bolt 21
Front end is pushed up in indent, and 22 periphery of elastic rubber is equipped with segmentation annulus guard ring 20,19 one end of pressure sensor and segmentation annulus guard ring
20 contacts, the other end are contacted by pin 17 with piston ring 18.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the test machine cylinder sleeve guide sleeve
11 peripheries of cylinder are wound with resistive heater 13.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the test machine cylinder sleeve guide sleeve
Vibration excitation device 14 is installed on cylinder 11.
A kind of multi-functional piston-cylinder System friction-wear test test machine, outside the test machine piston skirt
It is equipped with annular groove track week, it is interior to contain multiple small steel balls 15.
A kind of multi-functional piston-cylinder System friction-wear test test machine, the test machine piston rod machine
Structure bottom is equipped with oil sump 12, and oil pump mechanism and resistive heater are equipped in oil sump 12.
Frequency control motor 3 drives speed changer 4, torque rotational speed detector 5, to drive toggle 7 in Fig. 3 to transport
Dynamic, high strong spring 7-5 is acted at the top of the special piston 7-3 of test machine in figure 3, the test machine of test machine special piston and Fig. 8
Piston-cylinder 7-4 mutually moves, interacts, and constitutes friction pair, with the rotation of frequency control motor 3, completes piston-cylinder liner
The friction-wear test of group, directly by load cell 8-1,8-2,8-3,8-4 and support plate c in Fig. 5 on support plate b
Load cell 9-1,9-2,9-3,9-4 testing friction pair frictional force.
Technical solution of the present invention implementation focus：
1, friction-wear test and test between piston ring and cylinder sleeve are carried out：Frequency control motor 3 drives speed changer 4 and turns round
Square rotational speed detector 5 drives test machine piston crank link mechanism as shown in Figure 4, makes such as the special piston of the test machine of Fig. 9 forms
7-3 is moved with the suspension cylinder sleeve of test machine piston-cylinder 7-4 forms in fig. 8, and sliding friction pair between the two is piston
Ring and cylinder sleeve, frictional force are bigger；Rolling friction pair is the skirt section linear bearing of the special piston 7-3 of test machine of special shape
Small steel ball and cylinder sleeve, and remove high strong spring 7-5 at this time, force of rolling friction is relatively small.By in Fig. 5 on support plate b
Load cell 9-1,9-2,9-3,9-4 test suspension cylinder sleeve on load cell 8-1,8-2,8-3,8-4 and support plate c and
Frictional force between piston ring 18.
2, the friction-wear test between piston skirt and cylinder sleeve and test are carried out：In Fig. 4, conventional piston group is installed
Part removes the piston ring of conventional piston component, and high strong spring 7-5, such case are installed between the heads piston 7-3 and support plate 9
Under, in the crank and connecting rod movement of Fig. 4, piston skirt contacts with each other with cylinder sleeve and relative motion, forms friction pair, rubs
It wipes wear test and carries out friction testing.
3, piston-cylinder liner group fretting wear is simulated：The conventional piston component of installation, pacifies between the heads piston 7-3 and support plate 9
High strong spring 7-5 is filled, normal operation carries out friction-wear test and friction testing.
4, it is the pressure by spring to top land that high strong spring 7-5, which installs function, in Fig. 3, simulate and really starts
Air pressure loads the spring of different-stiffness to the pressure of piston top when machine ignition, obtains simulated engine real work power
Under the conditions of, (such as expansion stroke uses high rigidity spring, compression stroke to use opposite Low rigidity spring), piston skirt when each stroke
Portion to obtain piston-cylinder liner system friction wear test, while testing piston-under this condition to the lateral pressure of cylinder wall surface
The size of the frictional force of cylinder System.
5, resistive heater 13 and vibration exciter 14 can be installed on test machine cylinder sleeve guide sleeve 11 in Fig. 7, gives cylinder sleeve
Heated and apply certain frequency vibration, together with the heating galvanic couple in oil sump 12, further simulated engine it is true
Temperature under operating condition and vibration, the fretting wear of piston-cylinder liner group.
6, the radial load of piston ring adjusts pressure pad plate 16, elastic rubber 22 along piston axial direction by adjustment bolt in Figure 10 21
Distance generates the radial displacement of rubber, and the segmentation annulus guard ring 20 being equipped with by periphery passes to one end of pressure sensor 19,
19 other end of pressure sensor is contacted by pin 17 with piston ring 18, and piston ring is passed to, and realizes piston ring to casing wall radial direction
The control of power size.
Invention has the following advantages：
1, by simple structure, situations such as simulating pressure, vibration and the heating power of real engine, in non-ignition burning
In the case of, the fretting wear of the piston-cylinder liner system under simulated engine actual condition to greatest extent；It is carried out at the same time frictional force
The measurement of size；
2, the experimental test machine is open, can be with easy disassembly and combination, and is loaded conveniently, therefore measurement is made to have
Specific aim and accuracy can test out piston ring to cylinder sleeve respectively such as by the different installation combinations of piston-cylinder liner system
Frictional force, piston skirt is to influence of the effect to cylinder sleeve simultaneously of both frictional force, and consideration of cylinder sleeve.It simultaneously can also be at this
The piston-cylinder liner system of new model is matched in equipment；
3, using suspension cylinder sleeve, and targetedly placement sensor, can direct testing friction pair frictional force, therefore grind
It is more accurate true to study carefully the abrasion of piston-cylinder liner system friction.
To sum up, this experimental test machine has simple in structure, easily manufactured, tests the advantages that accurate, is provided simultaneously with very high
Reliability, durability and economy.
Claims (8)
1. a kind of multi-functional piston-cylinder System friction-wear test test machine, which is characterized in that including experiment machine support (1),
Power section holder (2), frequency control motor (3), speed changer (4), torque rotational speed detector (5), test machine supporting device；Become
Frequency modulation speed motor (3) is connect by yielding coupling with speed changer (4) input terminal, and speed changer (4) output end passes through elastic shaft coupling
Device is connect with torque tester (5), and test machine piston crank mechanism (7) is connect by yielding coupling with torque tester；It surveys
Test-run a machine supporting device includes scaffold and test machine sleeve supporting device, and test machine piston-cylinder (7-4) suspends to be mounted on and survey
In test-run a machine pilot sleeve supporting device, and there is load cell to be directly connected to friction pair, piston crank link mechanism (7) and torsion
Square rotational speed detector (5) connects, and the test of the frictional force and toggle rotating speed between friction pair is completed by the two.
2. a kind of multi-functional piston-cylinder System friction-wear test test machine as described in claim 1, which is characterized in that
The scaffold of the test machine supporting device includes support plate a (7), support plate b (8), support plate c (9), support plate a (7),
Support plate b (8), support plate c (9) are fixed on side by side successively on experiment machine support (1)；Test machine cylinder sleeve pilot sleeve (11) passes through
Bolt is mounted between support plate b (8) and support plate c (9).
3. a kind of multi-functional piston-cylinder System friction-wear test test machine as claimed in claim 2, which is characterized in that
Multiple load cells are equipped on the support plate b (8) and support plate c (9), test machine piston-cylinder (7-4) passes through steel ball
It is equipped with test machine cylinder sleeve pilot sleeve (11), constitute suspension cylinder sleeve, the both ends of test machine piston-cylinder (7-4) and force-measuring sensing
Device contacts, the frictional force between the special piston of test machine (7-3) and test machine piston-cylinder (7-4).
4. a kind of multi-functional piston-cylinder System friction-wear test test machine as claimed in claim 2, which is characterized in that
High strong spring (7-5) is installed between support plate c (9) at the top of the special piston of test machine (7-3), passes through the bullet of different-stiffness
Spring, in the case of simulated engine difference stroke, cylinder pressure is to the active force of top land, to obtain the special piston (7- of test machine
3) lateral pressure of casing wall suffered by skirt section.
5. a kind of multi-functional piston-cylinder System friction-wear test test machine as described in claim 1, which is characterized in that
The special piston of test machine (7-3) the skirt section periphery is linear roller bearing form, inside has small steel ball (15) rolling circulating slot
Interior rolling cycle.
6. a kind of multi-functional piston-cylinder System friction-wear test test machine as described in claim 1, which is characterized in that
The special piston of test machine (7-3) front end indent is internally provided with elastic pressure regulating mechanism.
7. a kind of multi-functional piston-cylinder System friction-wear test test machine as claimed in claim 6, which is characterized in that
The elastic pressure regulating mechanism includes elastic rubber (22), and elastic rubber (22) front and back end is respectively equipped with pad pressing plate (16), leads to
It crosses bolt (21) to be fixed in the indent of the front end test machine piston-cylinder (7-3) top, elastic rubber (22) periphery is equipped with segmentation annulus
Guard ring (20), segmentation annulus guard ring (20) external contact have pressure sensor (19), pressure sensor (19) other end to pass through column
Pin (17) is contacted with piston ring (18).
8. a kind of multi-functional piston-cylinder System friction-wear test test machine as described in claim 1, which is characterized in that
Vibration exciter (14) is installed on the test machine cylinder sleeve pilot sleeve (11)；Test machine cylinder sleeve pilot sleeve (11) periphery twines
It is wound with resistive heater (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454276.5A CN108362598B (en) | 2018-05-14 | 2018-05-14 | Friction and wear test machine for multifunctional piston-cylinder sleeve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454276.5A CN108362598B (en) | 2018-05-14 | 2018-05-14 | Friction and wear test machine for multifunctional piston-cylinder sleeve system |
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| Publication Number | Publication Date |
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| CN108362598A true CN108362598A (en) | 2018-08-03 |
| CN108362598B CN108362598B (en) | 2024-01-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109374462A (en) * | 2018-11-26 | 2019-02-22 | 吉林大学 | The multi-functional reciprocating material friction abrasion of one kind and piston ring packing test machine |
| CN109540722A (en) * | 2019-01-28 | 2019-03-29 | 河海大学常州校区 | A kind of multifunction friction wear experimental rig |
| CN109738317A (en) * | 2018-12-12 | 2019-05-10 | 华南理工大学 | A kind of Cylinder Liner-piston Ring frictional wear test device |
| CN109752271A (en) * | 2019-03-03 | 2019-05-14 | 王志辉 | A kind of the non-uniform temperature field abrasion test device and its test method of material |
| CN110308065A (en) * | 2019-06-05 | 2019-10-08 | 西北工业大学 | Rotary engine wear detector and detection method |
| CN110375967A (en) * | 2019-04-22 | 2019-10-25 | 北京航空航天大学 | It is a kind of from air-cooled piston type cylinder key parameter performance test evaluation experimental platform |
| CN110779700A (en) * | 2019-11-12 | 2020-02-11 | 湖南江滨机器（集团）有限责任公司 | Piston excircle wear test device |
| CN111337653A (en) * | 2020-03-24 | 2020-06-26 | 大连海事大学 | Resistance method double-point contact friction analyzer |
| CN111982731A (en) * | 2020-08-26 | 2020-11-24 | 徐州徐工挖掘机械有限公司 | Bushing friction wear test device |
| CN113108963A (en) * | 2021-04-14 | 2021-07-13 | 吉林大学 | Dynamic testing device for circumferential radial elasticity of piston ring |
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| CN109752271A (en) * | 2019-03-03 | 2019-05-14 | 王志辉 | A kind of the non-uniform temperature field abrasion test device and its test method of material |
| CN110375967A (en) * | 2019-04-22 | 2019-10-25 | 北京航空航天大学 | It is a kind of from air-cooled piston type cylinder key parameter performance test evaluation experimental platform |
| CN110375967B (en) * | 2019-04-22 | 2022-02-08 | 北京航空航天大学 | Self-air-cooled piston type cylinder key parameter performance test evaluation experiment table |
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| CN111982731B (en) * | 2020-08-26 | 2023-09-26 | 徐州徐工挖掘机械有限公司 | Bushing friction and wear test device |
| CN113108963A (en) * | 2021-04-14 | 2021-07-13 | 吉林大学 | Dynamic testing device for circumferential radial elasticity of piston ring |
| CN113108963B (en) * | 2021-04-14 | 2022-03-08 | 吉林大学 | Dynamic testing device for circumferential radial elasticity of piston ring |
| CN113776713A (en) * | 2021-09-06 | 2021-12-10 | 滨州学院 | Method for testing friction force of piston skirt in real time in engine running process |
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