CN201429554Y - Micro vibration friction wear test stand of controllable atmosphere - Google Patents
Micro vibration friction wear test stand of controllable atmosphere Download PDFInfo
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- CN201429554Y CN201429554Y CN2009200823287U CN200920082328U CN201429554Y CN 201429554 Y CN201429554 Y CN 201429554Y CN 2009200823287 U CN2009200823287 U CN 2009200823287U CN 200920082328 U CN200920082328 U CN 200920082328U CN 201429554 Y CN201429554 Y CN 201429554Y
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- anchor clamps
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Abstract
The utility model relates to a micro vibration friction wear test stand of controllable atmosphere. A lower atmosphere control hood of which the upper part is provided with an opening is fixed on theupper part of the base plate of the test stand by threads, the lower atmosphere control hood covers a rotating motor and a lower gripper, and vents are arranged on the side walls of the lower atmosphere control hood. An upper atmosphere control hood covers the lower atmosphere control hood by an opening arranged at the lower part of the upper atmosphere control hood, the top of the upper atmosphere control hood is provided with an upper gripper opening fitting with the external periphery of an upper gripper, the upper gripper opening is sleeved on the upper gripper, and vents are also arrangedon the side surfaces of the upper atmosphere control hood. The test stand can be used for carrying out micro vibration friction wear tests for friction pairs in specific environment atmosphere manually controlled, so the micro vibration friction wear properties of materials can be really and accurately tested in specific atmosphere conditions. The utility model provides more accurate and reliablereferences for design related to machinery and biological engineering.
Description
Technical field
The utility model belongs to the mechanical engineering section friction field that learns a skill, and especially belongs to micro-moving frictional wear experimental technique field.
Background technology
Fine motion (Fretting) is meant under alternate load effects such as mechanical vibration, fatigue load, electric and magnetic oscillation or thermal cycle, the relative motion that the amplitude that takes place between surface in contact is minimum, nominally these surface in contacts are static usually, i.e. fine motion occurs in the mechanical part of " fastening " cooperation.The fine motion tribology is a subject branch of research fine motion operation mechanism, damage, test, monitoring, prevention, and it is a growing emerging cross discipline, and the subject that relates to is extensive, as mechanics, materialogy, even biomedicine, electrotechnics etc.Fine motion is the very little friction mode of a kind of relative motion amplitude, its material damage that causes is usually expressed as two kinds of forms, that is: the wearing and tearing that cause of fine motion one: fine motion can cause the surface abrasion between surface of contact, produce material unaccounted-for (MUF) and scantling and change, cause member interlock, loosening, power loss, noise increases or form pollution source.Two, the fatigue that causes of fine motion: fine motion can be quickened the germinating and the expansion of crackle, and reduced the fatigue lifetime of member greatly, the fretting fatigue limit even can be lower than 1/3 of common fatigue limit.Often this damage type danger is bigger, causes some catastrophic accidents.
Under ball-plane contact condition, fine motion can be divided into tangentially, radially, four kinds of basic jog mode such as rolling, twisting.Tangential fine motion is grinding secondary under the effect of normal load with fine motion radially, on surface of contact, do little displacement rectilinear motion, difference is: the normal load direction of tangential fine motion is vertical with its direction of motion, and radially fine motion normal load direction is consistent with direction of motion.Rolling fine motion and twisting or micro-moving are grinding pair under the effect of normal load, do low-angle rotatablely moving on surface of contact, and difference is: the turning axle of rolling fine motion is parallel with contact plane, as the friction on wheel and ground; The turning axle of twisting or micro-moving is vertical with surface of contact, as the friction of hip joint and the generation of hip joint dish.
The micro-moving frictional wear test can reduce the fretting wear problem that occurs in the engineering, improvement machinery and bionic relevant design, the performance and the life-span of improving equipment and apparatus.Applicant's publication number is the method and apparatus of existing micro-moving frictional wear test such as CN101178345A's " a kind of twisting or micro-moving frictional wear test method and device thereof " patented claim, can carry out the micro-moving frictional wear test to friction tight friction pair under atmospheric environment.But its gaseous environment can not manual control.And the micro-moving frictional wear of material is the process of a complexity, not only depends on structure and the character of itself, and closely related with the working environment of friction pair.In the practical engineering application, many friction pairs are in the atmosphere of extreme harshness, for example gas compressor, weapon emission coefficient, motorcycle pantograph system, high temperature gas cooled reactor and aerospace spacecraft etc.Correlative study shows that the atmosphere of metal surface is bigger to the friction and wear behavior influence of metallic rubbing pairs. existing friction-wear test only can be carried out in common atmospheric environment, can't how to influence testing of friction and wear behavior to ambiance.Therefore, the friction-wear test atmosphere control device of development of new, be implemented in the friction-wear test in the varying environment atmosphere, to reduce under the particular atmosphere condition, the fretting wear problem that occurs in the engineering, improve machinery and bionic relevant design, improve the performance and the life-span of equipping, have crucial meaning with apparatus.
The utility model content
The purpose of this utility model just provides a kind of micro-moving frictional wear testing table of controlled atmosphere, this kind experiment table can make close-fitting friction pair carry out the micro-moving frictional wear test in manually operated specific environment atmosphere, thereby test out under the particular atmosphere condition micro-moving frictional wear performance of material more really and accurately; For machinery and bionic relevant design provide more accurate, more reliable foundation; To improve the performance and the life-span of equipment and apparatus.
The technical scheme that its goal of the invention that realizes the utility model adopts is: a kind of micro-moving frictional wear testing table of controlled atmosphere, comprise the support of experiment table and be fixed on the rotary electric machine of the low-speed highly precise on the base plate of support, be fixed with the lower clamp that spherical test specimen is installed on the axle of rotary electric machine, in the middle and upper part of support the vertical two-dimentional mobile platform of level is installed, below two-dimentional mobile platform, be fixed be used for the mounting plane test specimen on anchor clamps, its design feature is:
Base plate top also screw thread is fixed with the bottom atmosphere control cover of upper opening, and bottom atmosphere control cover surrounds rotary electric machine and lower clamp, has air hole on the sidewall of bottom atmosphere control cover; Bottom atmosphere control covers on the mouth on its top and controls the mouth of the lower openings of covering along suitable step along being provided with top atmosphere, atmosphere control cover in top is controlled on the cover along covering in bottom atmosphere by the mouth of bottom, the top of top atmosphere control cover has the last anchor clamps mouth adaptive with last anchor clamps outer peripheral face, should go up the anchor clamps muzzle and be combined on the anchor clamps, the side of top atmosphere control cover also has blow vent.
The course of work of the present utility model and principle are:
A, test specimen are installed and are taken off top atmosphere control cover, spherical test specimen is clamped on the lower clamp, then the plane test specimen is clamped in and goes up on the anchor clamps, and adjust the initial position of plane test specimen by the vertical two-dimentional mobile platform of level, again top atmosphere control cover is controlled and covered along cover back bottom atmosphere by its mouthful.Anchor clamps and lower clamp and plane test specimen thereof, spherical test specimen, rotary electric machine are all covered by the atmosphere control space that top, bottom atmosphere control cover are formed.
B, atmosphere control and test feed required gas by bottom or top air hole in the atmosphere control space that quilt covers, the air hole of usefulness does not discharge gas then as vent port.After the concentration of the feeding gas in the atmosphere control space reached requirement, stifled again upper vent hole and water filling port carried out the micro-moving frictional wear test immediately; Perhaps after the concentration of the feeding gas in the atmosphere control space reached requirement, the micro-moving frictional wear test was carried out in ventilation always simultaneously.
Compared with prior art, the beneficial effects of the utility model are:
Experiment table of the present utility model can make close-fitting friction pair on top, bottom atmosphere control cover, manually operated specific environment atmosphere carries out micro-moving frictional wear and tests, thereby test out under the particular atmosphere condition micro-moving frictional wear performance of material more really and accurately; For the machinery and the bioengineering relevant design of working in the particular atmosphere condition provides more accurate, more reliable foundation; To improve the performance and the life-span of equipment and apparatus.
Confined space only seals up rotary electric machine, upper and lower anchor clamps, and ball test specimen, plane test specimen, and will not seal the miscellaneous part that does not move in the test.Make its seal cavity little, the gas of the required feeding of controlled atmospher is few, and atmosphere control is more convenient, save time, save.
Adopt the separate type of top and the bottom atmosphere control cover simultaneously, top atmosphere control cover can take off or cover again from bottom atmosphere control cover easily.Make device of the present utility model easy to operate in clamping test pieces the time.
The inside surface of above-mentioned bottom atmosphere control cover is provided with circle groove upwards.Like this, can place drying agent easily in this groove or inject water, thereby effectively adjust and control the damp condition of experimental atmosphere environment, more real simulated goes out to test the atmosphere of test specimen in real work.The sidewall that above-mentioned bottom atmosphere control covers on the groove top is provided with water filling port.Make water filling convenient like this.
The last anchor clamps mouth of above-mentioned top atmosphere control cover is provided with O-ring seal.Can make the sealing effectiveness between top atmosphere control cover and the last anchor clamps better like this.Also can reduce simultaneously the vibrations of atmosphere control cover.
The cylindrical shape that is shaped as that above-mentioned bottom atmosphere control cover and top atmosphere are controlled cover.The cylindrical shape cover is easy to make, also saves material simultaneously.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the broken section structural representation of the utility model embodiment one.
Fig. 1 illustrates, and first kind of specific embodiment of the present utility model is a kind of fine motion of controlled atmosphere The friction-wear test platform comprises the support 1 of experimental bench and is fixed on low speed height on the base plate 24 of support 1 The rotary electric machine 22 of precision is fixed with the lower clamp 1 that spherical test specimen 17 is installed on the axle of rotary electric machine 22 9, the vertical two-dimensional movement platform 50 of level is installed, on two-dimensional movement platform 50 times in the middle and upper part of support 1 Face is fixed with the upper anchor clamps 15 for mounting plane test specimen 16, and base plate 24 tops also screw thread are fixed with top The bottom atmosphere control cover 40 of opening, bottom atmosphere control cover 40 is with rotary electric machine 22 and lower clamp 1 9 surround, and have passage 41 on the sidewall of bottom atmosphere control cover 40; Bottom atmosphere control cover 40 The mouth on top along being provided with mouth with the lower openings of top atmosphere control cover 30 along suitable step 4 2, top atmosphere control cover 30 is controlled on the cover 40 top gas by the mouth of bottom along covering in bottom atmosphere The top of atmosphere control cover 30 has the upper anchor clamps mouth 33 adaptive with upper anchor clamps 15 outer peripheral faces, anchor clamps on this Mouth 33 is linked on the anchor clamps 15, and the side of top atmosphere control cover 30 also has blow vent 31.
The inside surface of the bottom atmosphere control cover 40 that this is routine is provided with circle groove 43 upwards.Bottom atmosphere control cover 40 is provided with water filling port 44 on the sidewall above the groove 43.
The last anchor clamps mouth 33 of the top atmosphere control cover 30 that this is routine is provided with O-ring seal.
30 the cylindrical shape that is shaped as is covered in bottom atmosphere control cover 40 that this is routine and the control of top atmosphere.
Obviously, the micro-moving frictional wear testing table of the present utility model micro-moving frictional wear test that can twist and roll.When rolling the micro-moving frictional wear test, when on negative 24, settling rotary electric machine 22, make its rotation axis be level and get final product, lower clamp 19 is installed on the axle of rotary electric machine 22 equally; As long as rotary electric machine 22 and lower clamp 19 are housed in the upper and lower part atmosphere control cover 40 equally.
Micro-moving frictional wear testing table of the present utility model also can carry out radially testing with tangential micro-moving frictional wear, just its driver part no longer is a rotary electric machine 22, go up anchor clamps 15 and change into driving by the vertical two-dimentional mobile platform of the level of testing table middle and upper part, make plane test specimen on the anchor clamps 15 carry out micro-displacement radially or tangentially fine motion.Because the displacement during fine motion is usually in micron-sized scope, and the O-ring seal of the last anchor clamps mouth 33 of top atmosphere control cover 30 is a flexible material.Therefore, can not hinder radially with tangential direction on micro-displacement.Even can make whole top atmosphere control cover 30 usefulness flexible materials, then more can not hinder its level radially with tangential direction on micro-displacement.
Claims (5)
1, a kind of micro-moving frictional wear testing table of controlled atmosphere, comprise the support (1) of experiment table and be fixed on the rotary electric machine (22) of the low-speed highly precise on the base plate (24) of support (1), be fixed with the lower clamp (19) that spherical test specimen (17) is installed on the axle of rotary electric machine (22), the vertical two-dimentional mobile platform of level (50) is installed in the middle and upper part of support (1), below two-dimentional mobile platform (50), is fixed with the last anchor clamps (15) that are used for mounting plane test specimen (16), it is characterized in that:
Described base plate (24) top also screw thread is fixed with the bottom atmosphere control cover (40) of upper opening, and bottom atmosphere control cover (40) surrounds rotary electric machine (22) and lower clamp (19), has air hole (41) on the sidewall of bottom atmosphere control cover (40); Bottom atmosphere is controlled cover (40) mouth at an upper portion thereof and is controlled the mouth of the lower openings of covering (30) along suitable step (42) along being provided with top atmosphere, top atmosphere control cover (30) is controlled on the cover (40) along covering in bottom atmosphere by the mouth of bottom, the top of top atmosphere control cover (30) has the last anchor clamps mouth (33) adaptive with last anchor clamps (15) outer peripheral face, should go up anchor clamps mouth (33) and be linked on the anchor clamps (15), the side of top atmosphere control cover (30) also has blow vent (31).
2, the micro-moving frictional wear testing table of a kind of controlled atmosphere according to claim 1 is characterized in that: the inside surface of described bottom atmosphere control cover (40) is provided with circle groove (43) upwards.
3, the micro-moving frictional wear testing table of a kind of controlled atmosphere according to claim 2 is characterized in that: described bottom atmosphere control cover (40) is provided with water filling port (44) on the sidewall of groove (43) top.
4, the micro-moving frictional wear testing table of a kind of controlled atmosphere according to claim 1 is characterized in that: the last anchor clamps mouth (33) of described top atmosphere control cover (30) is provided with O-ring seal (34).
5, the micro-moving frictional wear testing table of a kind of controlled atmosphere according to claim 1 is characterized in that: the cylindrical shape that is shaped as of (30) is covered in described bottom atmosphere control cover (40) and the control of top atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200823287U CN201429554Y (en) | 2009-07-06 | 2009-07-06 | Micro vibration friction wear test stand of controllable atmosphere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200823287U CN201429554Y (en) | 2009-07-06 | 2009-07-06 | Micro vibration friction wear test stand of controllable atmosphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429554Y true CN201429554Y (en) | 2010-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200823287U Expired - Fee Related CN201429554Y (en) | 2009-07-06 | 2009-07-06 | Micro vibration friction wear test stand of controllable atmosphere |
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|---|---|
| CN (1) | CN201429554Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607976A (en) * | 2012-03-12 | 2012-07-25 | 西南交通大学 | Tester and method for testing test environment controllable multi-directional fine motion fatigue |
| CN103889136A (en) * | 2014-03-14 | 2014-06-25 | 清华大学 | Mechanical X-ray source |
| CN104155199A (en) * | 2014-08-25 | 2014-11-19 | 西南科技大学 | Special atmosphere flexible sealing and controlling device used for reciprocating-type friction-wear test machine |
| CN108680450A (en) * | 2018-07-23 | 2018-10-19 | 株洲长河电力机车科技有限公司 | Sliding block abrasion test platform |
-
2009
- 2009-07-06 CN CN2009200823287U patent/CN201429554Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607976A (en) * | 2012-03-12 | 2012-07-25 | 西南交通大学 | Tester and method for testing test environment controllable multi-directional fine motion fatigue |
| CN102607976B (en) * | 2012-03-12 | 2013-11-20 | 西南交通大学 | Tester and method for testing test environment controllable multi-directional fine motion fatigue |
| CN103889136A (en) * | 2014-03-14 | 2014-06-25 | 清华大学 | Mechanical X-ray source |
| CN104155199A (en) * | 2014-08-25 | 2014-11-19 | 西南科技大学 | Special atmosphere flexible sealing and controlling device used for reciprocating-type friction-wear test machine |
| CN108680450A (en) * | 2018-07-23 | 2018-10-19 | 株洲长河电力机车科技有限公司 | Sliding block abrasion test platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20120706 |