CN110333156A - Nonmetallic materials frictional wear test device under hydrogen gas environment - Google Patents
Nonmetallic materials frictional wear test device under hydrogen gas environment Download PDFInfo
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- CN110333156A CN110333156A CN201910551186.2A CN201910551186A CN110333156A CN 110333156 A CN110333156 A CN 110333156A CN 201910551186 A CN201910551186 A CN 201910551186A CN 110333156 A CN110333156 A CN 110333156A
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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
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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
- G01N3/06—Special adaptations of indicating or recording means
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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
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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
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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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
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
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Abstract
The present invention relates to nonmetallic Performance Testing Technologies, it is desirable to provide nonmetallic materials frictional wear test device under a kind of hydrogen gas environment.The device includes the test host in environmental cabinet；Testing host includes base, horizontal reciprocating movement platform, Vertical loading device, power device, force snesor and displacement sensor；Wherein, base includes the first side plate of vertical direction and the bottom plate and top plate of the second side plate and horizontal direction；Horizontal reciprocating movement platform includes horizontal guide rail, horizontal slider and sample table, and the upper surface of sample table is for placing sample；The Vertical loading device includes vertical guide rail, vertical slipper and counterweight seat；Power device includes stepper motor and lead screw.The configuration of the present invention is simple is compact, can easily and accurately control shift reciprocately, sliding speed；Loading force can be adjusted by counterweight；Frictional force and wearing depth can real-time dynamic acquisition, convenient for analysis specimen surface frictionally damage Evolution Characteristics and affecting laws.
Description
Technical field
The present invention relates to for nonmetallic materials under nonmetallic Performance Testing Technology more particularly to a kind of hydrogen gas environment
Frictional wear test device.
Background technique
Hydrogen Energy is a kind of green, efficient secondary energy sources, it has also become the important component in new energy development process.Hydrogen
Fuel cell car is as Hydrogen Energy important applied field, it has also become the hot spot of new-energy automobile development.Hydrogen is mainly with height at present
Gaseous form is pressed to be stored, pressure store is mostly in 35MPa or more.Nonmetallic O-ring has structure simple, compact dimensions,
The advantages that easily manufactured, low in cost, is widely used in the sealing of hydrogen system, such as hydrogen container, valve, pipeline, compressor.So
And high pressure hydrogen can generate bad effect to material.It is existing studies have shown that nonmetallic materials can occur under high pressure hydrogen environment
Phenomena such as inhaling hydrogen-expansion, blistering, may cause seal fails.With the raising of hydrogen storage pressure, the deterioration of nonmetallic materials
Phenomenon is more prominent.To ensure that high pressure hydrogen system is safe and stable, reliably runs, it is necessary to nonmetallic materials in high pressure hydrogen
Performance under environment is tested and is assessed.
According between sealing surface, whether there is or not relative motions, sealing can be divided into static seal and dynamic sealing.Dynamic sealing is in addition to bearing to be situated between
Outside matter pressure, it is also subjected to certain friction and wear.Friction wear testing machine be carry out tribology research capital equipment it
One.Currently, Research on wear and friction of the general friction wear testing machine primarily directed to material under air environment.Largely
The tribological property and the working environment close relation locating for it that development test shows material, many materials are in special gas
There are greatest differences under tribological property and ordinary atmosphere under atmosphere environment.To understand non-metallic material under hydrogen gas environment
The fretting wear phenomenon and its development mechanism of material, explore its influence factor, need to carry out the fretting wear examination under high pressure hydrogen environment
It tests.In recent years, the related seminar friction wear testing machine controllable to environment is developed, such as Pei Zhaohui has developed controllably
Atmosphere friction wear testing machine, but these testing machines have that structure is complicated, and the low disadvantage of test(ing) medium pressure can not carry out height
Press the test under hydrogen environment.
Summary of the invention
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, provide under a kind of hydrogen gas environment
Nonmetallic materials frictional wear test device.
In order to solve the technical problem, solution of the invention is:
Nonmetallic materials frictional wear test device under a kind of hydrogen gas environment, including hydrogen cylinder group and argon bottle are provided
Group is sequentially connected booster pump and environmental cabinet by gas circuit pipeline, the setting test host in environmental cabinet；Gas circuit pipeline and vacuum system
System is connected, and control system is separately connected booster pump, vacuum system and environmental cabinet by conducting wire；It is characterized in that,
The test host includes base, horizontal reciprocating movement platform, Vertical loading device, power device, force snesor
And displacement sensor；Wherein,
Base includes the first side plate of vertical direction and the bottom plate and top plate of the second side plate and horizontal direction；First side
Plate intersects vertically with the second side plate, and bottom plate and top plate are placed in two sides up and down, is fixedly connected between each component of base by screw；
Horizontal reciprocating movement platform includes horizontal guide rail, horizontal slider and sample table, and the upper surface of sample table is for placing
Sample；Horizontal guide rail is fixed on bottom plate, and horizontal slider is installed on the horizontal guide rail, and sample table is fixedly mounted on horizontal slider
On；
The Vertical loading device includes vertical guide rail, vertical slipper and counterweight seat；Vertical guide rail is fixed on the first side plate
Side, vertical slipper is mounted on vertical guide rail, and counterweight seat is fixedly connected with vertical slipper；Place weight in the upper surface of counterweight seat
Code, the bottom of counterweight seat set friction head, keep spacing for placing sample between friction head and the upper surface of testing stand；
The power device includes stepper motor and lead screw；Lead screw is arranged in parallel with horizontal guide rail, the output of stepper motor
Axis connects the end of lead screw by transmission parts to realize transmission；The other end of lead screw realizes branch by the leading screw bearing on bottom plate
Support；
One connecting plate is mounted in the middle part of lead screw by feed screw nut nesting, connecting plate and the power for being fixed on testing stand side
Sensor connects；One L shape folded plate is mounted on counterweight seat side with its vertical edge, fixed on top plate that vertical displacement sensing is housed
Device, bottom pull rod connect with the horizontal edge upper surface of L shape folded plate.
In the present invention, main part and the stepper motor of the lead screw are respectively positioned on the ipsilateral of the second side plate, lead screw end and
It is realized and is connected by transmission parts after passing through the second side plate in the end of stepper motor output shaft.
In the present invention, the transmission parts are chains, and sprocket wheel is respectively set in the end of lead screw and stepper motor output shaft,
Chain is sleeved on sprocket wheel for realizing transmission.
In the present invention, screw hole is set at the top of counterweight seat, vertical cylindrical counterweight bar is housed in screw hole；The counterweight
Center sets vertical through holes, and counterweight is sleeved on counterweight bar with its through-hole.
In the present invention, the main body of the friction head is cylindrical, and lower end is spherical shape；The bottom of counterweight seat sets vertical peace
Hole is filled, the main body of friction head is inserted into mounting hole, and the holding screw by being located in cross through hole is realized from side and fastened.
In the present invention, the upper surface of the sample table is equipped with the threaded hole that at least four is used to fix sample.
In the present invention, the environmental cabinet includes the end cap of lower part and the cabinet on top, and the two is bolted；In end cap
It is equipped with air inlet/outlet and lead wire outlet, the end of gas circuit pipeline is connected with air inlet/outlet.
In the present invention, the conducting wire of the force snesor, displacement sensor and stepper motor passes through lead wire outlet and the control
System connection.
Compared with prior art, the beneficial effects of the present invention are:
The present invention can be realized the friction and wear behavior test of nonmetallic materials under hydrogen gas environment, testing machine structure letter
It is single compact；Power is provided by stepper motor, can easily and accurately control shift reciprocately, sliding speed；Loading force can pass through weight
Code is adjusted；Frictional force and wearing depth can real-time dynamic acquisition, convenient for analysis specimen surface frictionally damage Evolution Characteristics and influence
Rule.
Detailed description of the invention
Fig. 1 is general arrangement schematic diagram of the invention.
Fig. 2 is environmental cabinet structural schematic diagram of the invention.
Fig. 3 is test main machine structure schematic diagram of the invention.
Fig. 4 is the Vertical loading schematic device for testing host.
Description of symbols:
1- booster pump, 2- blow valve, 3- vacuum system, 4- test host, 5- environmental cabinet, 6- control system, 7- argon bottle
Group, 8- hydrogen cylinder group, 9- cabinet, 10- fastening bolt, 11- end cap, 12- air inlet/outlet, 13- lead wire outlet, 14- bottom plate, 15- water
Level gauge, 16- horizontal slider, 17- sample table, 18- sample, 19- vertical guide rail, 20- friction head, 21- counterweight seat, 22- folded plate,
23- counterweight, the first side plate of 24-, 25- displacement sensor, 26- counterweight bar, 27- top plate, 28- stepper motor, 29- chain, 30-
Two side plates, 31- sprocket wheel, 32- lead screw, 33- connecting plate, 34- feed screw nut, 35- force snesor, 36- leading screw bearing, 37- are vertical
Sliding block, 38- screw, 39- holding screw.
Specific embodiment
Nonmetallic materials frictional wear test device is as shown in Figure 1 under hydrogen gas environment in the present embodiment.Hydrogen cylinder
The outlet of group 8 and argon bottle group 7 is connected to the entrance of booster pump 1, and the outlet of booster pump 1 is connected to environmental cabinet 5.In booster pump 1
Exhaust-valve 2 and vacuum system 3 are further connected on pipeline between environmental cabinet 5.Test host 4 is placed in environmental cabinet 5.Whole system by
Control system 6 is monitored and controls.Environmental cabinet cabinet 9 and end cap 11 as shown in Fig. 2, be made of, the two passes through fastening bolt
10 connections.End cap 11 is equipped with air inlet/outlet 12 and lead wire outlet 13.The lead of test host 4 is connected to control by lead wire outlet 13
System 6.
Host is tested as shown in figure 3, including base, Vertical loading device, horizontal reciprocating movement platform, power device, power
Sensor 35, displacement sensor 25.Base includes bottom plate 14, the first side plate 24, the second side plate 30, top plate 27, passes through screw phase
It connects.Horizontal reciprocating movement platform includes horizontal guide rail 15, horizontal slider 16, sample table 17.Horizontal guide rail 15 is fixed on bottom
On plate 14, horizontal slider 16 is mounted on horizontal guide rail 15, and sample table 17 can be in horizontal guide rail 15 after being connected with horizontal slider 16
On reciprocatingly slide.Sample 18 is cuboid, is machined with 4 through-holes, corresponding with 4 threaded holes on sample table 17, passes through screw
Fixed on sample table 17.
Power device includes stepper motor 28, sprocket wheel 31, chain 29, lead screw 32, feed screw nut 34, leading screw bearing 36.Silk
Thick stick support 36 is connected on bottom plate 14.Lead screw 32 is parallel with horizontal guide rail 15, and one end passes through leading screw bearing 36, and the other end passes through the
Two side plates 30, and sprocket wheel 31 is housed in end.Feed screw nut is mounted on lead screw, is connected by connecting plate 33 and force snesor 35
It connects.Stepper motor 28 is mounted on the second side plate 30, and output shaft passes through the second side plate 30, and sprocket wheel is housed in end, passes through chain
Item 29 is connect with lead screw 32.When experiment, drives lead screw 32 to rotate by stepper motor 28, move horizontally feed screw nut 34, and lead to
Cross connecting plate 33, force snesor 35 drives sample platform to move horizontally.Since resistance is very between horizontal guide rail 15 and horizontal slider 16
Small, 35 measured values of force snesor are approximately the frictional force between friction head 20 and sample 18.
Vertical loading device is as shown in Figure 4.Vertical guide rail 19 is fixed on the first side plate 24, and vertical slipper 37 is mounted on vertical
On straight guide 19,21 side of counterweight seat and vertical slipper 37 are connected, and can slide up and down with vertical slipper 37, the other side passes through
Screw 38 connects a folded plate 22.26 one end threaded of counterweight bar is connect with 21 screw top hole of counterweight seat；Counterweight 23 is band through-hole
Cylinder, on the counterweight bar 26.Friction head 20 is a steel ball, and the other end is a cylinder, is mounted on 21 bottom circular aperture of counterweight seat
In, it is connect by holding screw 39 with counterweight seat.Under the effect of gravity, friction head 20 is pressed in 18 upper surface of sample, passes through replacement
Friction head 20 is adjusted to the magnitude of load of sample 18 in counterweight 23.Displacement sensor 25 is on top plate 27, using linear variable
Differential transformer type (LVDT) displacement sensor, the pull rod of bottom are connect with folded plate 22, and energy real-time measurement counterweight seat 21 is hanging down
Histogram to displacement, to obtain friction head 20 in the wearing depth of vertical direction.
The basic skills tested using nonmetallic materials frictional wear test device under the hydrogen gas environment is as follows:
(1) cabinet 9 and end cap 11 are separated, after installing sample 18 and counterweight 23, with 10 tight engagement cabinet of fastening bolt, 9 He
End cap 11；
(2) air in environmental cabinet 5 and subsidiary pipeline is taken out using vacuum system 3, is closed after vacuum degree reaches setting value
Vacuum system 3 is closed, high pressure hydrogen (or argon gas, test as a comparison) is filled to environmental cabinet 5 using booster pump 1, until environmental cabinet
Interior gas pressure reaches setting value；
(3) start stepper motor 28, sample table 17 is made to pass through control by the frequency, speed and stroke reciprocating of setting
System 6 records frictional force and wearing depth in real time.
(4) after the times of exercise for reaching setting, stepper motor 28 is closed, by exhaust-valve 2 to 5 pressure release of environmental cabinet, is used
Vacuum system 3 vacuumizes environmental cabinet 5, and vacuum degree closes vacuum system 3 after reaching setting value, opens exhaust-valve 2 and balances environment
5 external and internal pressure of case separates cabinet 9 and end cap 11, takes out sample.
Example above is only a specific embodiment of the invention, not makes limitation in any form to the present invention.
Anything that does not depart from the technical scheme of the invention, any letter that technical spirit according to the present invention makes the above case study on implementation
Single modification, equivalent variations and modification, still fall in technical solution of the present invention.
Claims (8)
1. nonmetallic materials frictional wear test device under a kind of hydrogen gas environment, including hydrogen cylinder group and argon bottle group lead to
It crosses gas circuit pipeline and is sequentially connected booster pump and environmental cabinet, the setting test host in environmental cabinet；Gas circuit pipeline and vacuum system phase
Even, control system is separately connected booster pump, vacuum system and environmental cabinet by conducting wire；It is characterized in that,
The test host includes base, horizontal reciprocating movement platform, Vertical loading device, power device, force snesor and position
Displacement sensor；Wherein,
Base includes the first side plate of vertical direction and the bottom plate and top plate of the second side plate and horizontal direction；First side plate with
Second side plate intersects vertically, and bottom plate and top plate are placed in two sides up and down, is fixedly connected between each component of base by screw；
Horizontal reciprocating movement platform includes horizontal guide rail, horizontal slider and sample table, and the upper surface of sample table is for placing sample；
Horizontal guide rail is fixed on bottom plate, and horizontal slider is installed on the horizontal guide rail, and sample table is fixedly mounted on horizontal slider；
The Vertical loading device includes vertical guide rail, vertical slipper and counterweight seat；Vertical guide rail is fixed on the side of the first side plate
Face, vertical slipper are mounted on vertical guide rail, and counterweight seat is fixedly connected with vertical slipper；Counterweight is placed in the upper surface of counterweight seat,
The bottom of counterweight seat sets friction head, keeps spacing for placing sample between friction head and the upper surface of testing stand；
The power device includes stepper motor and lead screw；Lead screw is arranged in parallel with horizontal guide rail, and the output shaft of stepper motor is logical
The end of transmission parts connection lead screw is crossed to realize transmission；The other end of lead screw realizes support by the leading screw bearing on bottom plate；
One connecting plate is mounted in the middle part of lead screw by feed screw nut nesting, and connecting plate is sensed with the power for being fixed on testing stand side
Device connects；One L shape folded plate is mounted on counterweight seat side with its vertical edge, fixed on top plate that vertical displacement sensor is housed,
Its bottom pull rod connects with the horizontal edge upper surface of L shape folded plate.
2. the apparatus according to claim 1, which is characterized in that the main part of the lead screw and stepper motor are respectively positioned on the
Two side plates it is ipsilateral, company is realized by transmission parts after passing through the second side plate in the end of lead screw end and stepper motor output shaft
It connects.
3. the apparatus according to claim 1, which is characterized in that the transmission parts are chains, in lead screw and stepper motor
Sprocket wheel is respectively set in output the tip of the axis, and chain is sleeved on sprocket wheel for realizing transmission.
4. the apparatus according to claim 1, which is characterized in that set screw hole at the top of counterweight seat, be equipped in screw hole vertical
Cylindrical counterweight bar；The center of the counterweight sets vertical through holes, and counterweight is sleeved on counterweight bar with its through-hole.
5. the apparatus according to claim 1, which is characterized in that the main body of the friction head is cylindrical, and lower end is circle
It is spherical；The bottom of counterweight seat sets vertical mounting hole, and the main body of friction head is inserted into mounting hole, and tight in cross through hole by being located at
Determine screw and realizes fastening from side.
6. the apparatus according to claim 1, which is characterized in that the upper surface of the sample table is equipped at least four for solid
Determine the threaded hole of sample.
7. according to claim 1 to device described in 6 any one, which is characterized in that the environmental cabinet includes the end of lower part
The cabinet of lid and top, the two are bolted；On end cap be equipped with air inlet/outlet and lead wire outlet, the end of gas circuit pipeline with
Air inlet/outlet is connected.
8. experimental rig according to claim 1, which is characterized in that the force snesor, displacement sensor and stepping electricity
The conducting wire of machine is connect by lead wire outlet with the control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910551186.2A CN110333156A (en) | 2019-06-24 | 2019-06-24 | Nonmetallic materials frictional wear test device under hydrogen gas environment |
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| CN201910551186.2A CN110333156A (en) | 2019-06-24 | 2019-06-24 | Nonmetallic materials frictional wear test device under hydrogen gas environment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525446A (en) * | 2021-02-18 | 2021-03-19 | 河南氢枫能源技术有限公司 | Automatic pressure testing system for hydrogenation station equipment |
| CN112683779A (en) * | 2020-12-11 | 2021-04-20 | 河北省产品质量监督检验研究院 | Skates positioning mechanism for sliding friction coefficient measuring device |
| CN113376047A (en) * | 2021-07-05 | 2021-09-10 | 西南交通大学 | Rotary reciprocating friction testing machine |
| RU206935U1 (en) * | 2020-12-22 | 2021-10-01 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Брянский государственный технический университет" | Friction machine |
| CN113959877A (en) * | 2021-09-17 | 2022-01-21 | 上海工程技术大学 | Current-carrying friction test device for simulating sliding contact of pantograph-catenary of electric train |
| CN115165538A (en) * | 2022-07-15 | 2022-10-11 | 华南理工大学 | Intrinsically safe multifunctional high-pressure hydrogen environment material friction wear in-situ testing device |
| CN117288622A (en) * | 2023-11-06 | 2023-12-26 | 浙江大学 | Friction and wear test device for high-pressure hydrogen environment material |
| CN117288622B (en) * | 2023-11-06 | 2024-07-09 | 浙江大学 | Friction and wear test device for high-pressure hydrogen environment material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683779A (en) * | 2020-12-11 | 2021-04-20 | 河北省产品质量监督检验研究院 | Skates positioning mechanism for sliding friction coefficient measuring device |
| RU206935U1 (en) * | 2020-12-22 | 2021-10-01 | ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ БЮДЖЕТНОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Брянский государственный технический университет" | Friction machine |
| CN112525446A (en) * | 2021-02-18 | 2021-03-19 | 河南氢枫能源技术有限公司 | Automatic pressure testing system for hydrogenation station equipment |
| CN112525446B (en) * | 2021-02-18 | 2021-04-30 | 河南氢枫能源技术有限公司 | Automatic pressure testing system for hydrogenation station equipment |
| CN113376047A (en) * | 2021-07-05 | 2021-09-10 | 西南交通大学 | Rotary reciprocating friction testing machine |
| CN113959877A (en) * | 2021-09-17 | 2022-01-21 | 上海工程技术大学 | Current-carrying friction test device for simulating sliding contact of pantograph-catenary of electric train |
| CN115165538A (en) * | 2022-07-15 | 2022-10-11 | 华南理工大学 | Intrinsically safe multifunctional high-pressure hydrogen environment material friction wear in-situ testing device |
| CN117288622A (en) * | 2023-11-06 | 2023-12-26 | 浙江大学 | Friction and wear test device for high-pressure hydrogen environment material |
| CN117288622B (en) * | 2023-11-06 | 2024-07-09 | 浙江大学 | Friction and wear test device for high-pressure hydrogen environment material |
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Application publication date: 20191015 |