CN208297284U - Friction test equipment under atmosphere - Google Patents

Abstract

The utility model provides friction test equipment under a kind of atmosphere, belongs to tribological field.Above equipment includes rack, sample stage, load bringing device, inching gear, friction measurement device, controller and air charging system.Wherein, sample stage is for installing fixed sample；Displacement data is passed to controller for driving friction ball to do trace movement in sample surfaces by inching gear；Load bringing device is used to apply load to friction ball, and load data is passed to controller；Friction measurement device passes data to controller for measuring frictional force suffered by sample, is used to be passed through specific gas to outer box intracoelomic cavity from lifting device.The above method uses above equipment, can acquire more accurately related data in real time using above equipment and method, provides data supporting for next step research；And the mechanism of fine motion friction under different loads can also be studied.

Description

Friction test equipment under atmosphere

Technical field

The utility model relates to tribological fields, in particular to friction test equipment under a kind of atmosphere.

Background technique

Fine motion friction belongs to a subdiscipline of tribological field, and the research of fine motion tribology is to guidance reality production tool There is important meaning.For example, wirerope is when subjected to tension, Micro Phases can be generated to cunning between the steel wire per one It is dynamic.And under atmosphere, fine motion friction duty is more complicated；For example, rubbing when fine motion friction is in corrosive gas environment Power and voltage, load, the Relationship Comparison between displacement are complicated.Fine motion friction mechanism just needs dedicated rub under research atmosphere Wipe testing equipment.

Utility model content

The purpose of this utility model is to provide friction test equipment under a kind of atmosphere, can obtain and rub in real time Wipe the related data of power, displacement and load.

The utility model is realized in this way:

Friction test equipment under a kind of atmosphere, comprising:

Friction test equipment under a kind of atmosphere, comprising:

Rack；

Sample stage, the sample stage includes slidably engaging along first direction in the outter box of the rack, described outer Box body has upwardly opening inner cavity；It is provided with closing cap on the outter box, is provided with through-hole on the closing cap；

Air charging system, the air charging system include gas source and gas tube, and the gas source passes through the gas tube and described outer The inner cavity of box body is connected to；

Inching gear, the inching gear include fine motion device and follower lever, and the fine motion device is connect with the follower lever；

The fine motion device can export the reciprocating motion along the first direction, be provided with displacement sensing on the fine motion device Device；The follower lever extends along the first direction, and the bottom of the follower lever free end is provided with friction ball, the friction ball For cooperating with the upper surface of sample；

The top of the follower lever is arranged in load bringing device, the load bringing device, for the follower lever Apply load；The load bringing device includes pressure sensor；

Friction measurement device, the friction measurement device include friction force sensor and fixed frame, the fixed frame It is fixedly connected with the rack；The sample stage, the inching gear and the friction measurement device are arranged along first direction, The sample stage is between the fixed frame and the inching gear；

Described friction force sensor one end is connect with the fixed frame, and the other end is connect with the sample stage；

Controller, the controller respectively with institute displacement sensors, pressure sensor and friction force sensor electricity Connection.

Further,

The load bringing device includes column and movable part, and the column is connect with the rack, described removable Dynamic component can be moved along the column and is capable of fixing in predeterminated position；The bottom of the movable part is provided with the first pressure The top of the follower lever free end is arranged in contracting spring, first compressed spring；

The junction of the movable part Yu first compressed spring is arranged in the pressure sensor.

By the way that above-mentioned design is arranged, when needing to apply certain normal pressure, pass through mobile movable part to default position It sets, it is then that it is fixed with column；Operation is very easy.Also, since follower lever will do micro reciprocating movement；If sharp Load is applied to follower lever with rigid structure, there is certain additional friction force with respect to sliding between rigid structure and follower lever, Even make stuck between follower lever and rigid structure, fine motion device is burned.Positive pressure is applied to follower lever using compressed spring Power, compressed spring can produce micro-deformation, so as to which the influence of additional friction force is discharged.Therefore, it is applied using compressed spring Load lotus can not only improve the accuracy of data, moreover it is possible to protect fine motion device.

Further,

The movable part includes Mobile base, loaded member and vibration excitor；The Mobile base is connect with the column, described Loaded member is slidably matched in the vertical direction with the Mobile base, and the bottom of the loaded member is arranged in first compressed spring Portion；

Being horizontally disposed on the Mobile base has fixed plate, and the top of the loaded member is arranged in the fixed plate, described solid The second compressed spring and guide post are provided between fixed board and the loaded member, the guide post is vertically arranged, the guide post One end be fixedly connected with the loaded member, the other end is slidably matched with the fixed plate；Second compressed spring is set in In the guide post；

The top of the fixed plate is arranged in the vibration excitor, and the output shaft of the vibration excitor is arranged straight down, described The output shaft of vibration excitor is detachably connected with the loaded member.

When needing to apply alternating load, first apply the dead load of a normal pressure to sample；Then by vibration excitor with plus Holder connection when vibration excitor works, drives loaded member to do micro reciprocating motion；To apply alternating download to sample by loaded member Lotus.It, can be quiet to adjust by adjusting Mobile base by the connection disconnection of vibration excitor and loaded member when only needing to apply dead load The size of load.

By above-mentioned design, friction test equipment can also be used to study the friction feelings under alternating load under atmosphere Condition；And above structure has no effect on the application of dead load.That is, above-mentioned design is so that this equipment can either apply dead load energy again Apply alternating load；And the structure of the two integrates, so that whole equipment structure is more compact.

Further,

The follower lever is connect by slide assemblies with the output rod of the fine motion device；The follower lever passes through shaft and institute Slide assemblies pivot joint is stated, the shaft is horizontally disposed and perpendicular to the first direction；

Level tester is provided on the follower lever.

Further,

The inching gear further includes lifting platform, and the bottom of the lifting platform is connect with the rack, the fine motion device with The top of the lifting platform connects.

Further,

The lifting platform includes pedestal, upright guide rail and helical screw elevator, and bottom and the rack of upright guide rail are fixed Connection, pedestal is slidably matched with upright guide rail, and helical screw elevator includes base and threaded rod, the base and the rack Connection, the threaded rod are connect with the pedestal.

Further,

The slide assemblies include including the first sliding block and connector, and one end of first sliding block and the fine motion device connect It connects, the other end is connect with the connector；The bottom of first sliding block is provided with the first sliding rail.

Further,

The outter box bottom is provided with the second sliding block and the second sliding rail, and the outter box passes through second sliding block and institute It states the second sliding rail to be slidably connected, second sliding rail is connect with the rack.

The top of first sliding rail and second sliding rail is provided with the first magnet, first sliding block and described The lower part of two sliding blocks is provided with the second magnet；

The magnetism of first magnet and second magnet is opposite.

Since friction test equipment belongs to precision instrument under atmosphere, the frictional force between sliding block and sliding rail can to adopt The data collected have certain error.Therefore, sliding block is made to be in magnetic suspension state by the way that magnet is arranged, so that sliding block Frictional force between sliding rail is substantially zeroed；Further improve the precision of data.

Further,

The gas source is carbon-dioxide generator or steam evaporator or sulfur dioxide generator or air accumulator.

Common experimental provision in chemical laboratory can be directly used in carbon-dioxide generator or sulfur dioxide generator, Steam evaporator can use ultrasonic humidifier or free generation high-temperature vapor by heating.

A kind of fine motion Friction dates acquisition method, using friction test equipment under the atmosphere, including it is following Step:

A. sample is fixedly mounted on sample stage；And rotate follower lever, put the friction ball on follower lever free end It sets in the upper surface of sample；

B. the lifting platform height of inching gear is adjusted, so that follower lever is horizontally disposed；

C. apply load, position of the movable part on column is adjusted, so that the first compressed spring is compressed and to driven The constantly acting load of bar free end application normal pressure；Or connect vibration excitor with loaded member, and start vibration excitor, so that the first compression Spring applies alternating load to follower lever automatic end；

D. start inching gear, so that follower lever does micro reciprocating motion；And and start air charging system persistently to outter box Inner cavity inflation；

Collected data are transferred to control respectively by institute's displacement sensors, pressure sensor and the friction force sensor Device processed.

The beneficial effects of the utility model are:

Friction test equipment under the atmosphere that the utility model obtains by above-mentioned design, in use, sample is installed It is fixed on sample stage；Friction ball on follower lever is placed on the upper surface of sample；Using air charging system to outter box Inner cavity is passed through specific gas；Load is applied to friction ball by the first compressed spring using load bringing device, and described in utilization Displacement sensor, pressure sensor, the friction force sensor real-time data collection are transferred to controller storage.

Above equipment can acquire the related data under particular atmosphere environment in real time, provide data branch for next step research Support；And fine motion friction under different loads or different materials can also be studied by changing magnitude of load and specimen material etc. Mechanism.Whole equipment is easy to operate, and structure is simple.

Detailed description of the invention

It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 is the shaft side figure of friction test equipment under the atmosphere that the utility model embodiment provides；

Fig. 2 is the main view of friction test equipment under the atmosphere that the utility model embodiment provides；

Fig. 3 is the right view for Fig. 2 that the utility model embodiment provides；

Fig. 4 is the partial enlarged view for Fig. 2 that the utility model embodiment provides；

Fig. 5 is the top view of the fixture that the utility model embodiment provides and sample；

Fig. 6 is the bottom view for Fig. 5 that the utility model embodiment provides；

Fig. 7 is the shaft side figure for the inching gear that the utility model embodiment provides；

Fig. 8 is the main view for the inching gear that the utility model embodiment provides；

Fig. 9 is the axonometric drawing for the load charger that the utility model embodiment provides；

Figure 10 is the main view for the load charger that the utility model embodiment provides；

Figure 11 is the right view for Figure 10 that the utility model embodiment provides.

Icon: friction test equipment under 010- atmosphere；100- rack；200- sample stage；210- outter box；220- envelope Close lid；230- fixture；232- gripper clamp；234- grip block；2342- holding tank；300- inching gear；310- fine motion device；320- Follower lever；322- friction ball；330- lifting platform；332- pedestal；334- upright guide rail；336- helical screw elevator；340- is sliding Dynamic component；The first sliding block of 342-；344- connector；350- shaft；400- load bringing device；410- column；412- screw rod； 414- guide part；420- movable part；422- Mobile base；4222- fixed plate；The second compressed spring of 423-；424- guide post； 425- loaded member；426- vibration excitor；427- pressure sensor；428- sliding block；429- sliding rail；The first compressed spring of 430-；500- Friction measurement device；510- friction force sensor；520- fixed frame；020- sample.

Specific embodiment

It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment is fallen within the protection scope of the utility model.

Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted The scope of the utility model of protection is sought, but is merely representative of the selected embodiment of the utility model.Based on the utility model In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts Mode is fallen within the protection scope of the utility model.

In the description of the present invention, it should be understood that indicating position or the term of positional relationship are based on attached drawing Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute The equipment or element of finger must have a particular orientation, is constructed and operated in a specific orientation, therefore should not be understood as to this reality With novel limitation.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area Divide description, is not understood to indicate or imply relative importance.

In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical" It has to fully horizontally, but can be slightly tilted.

In the present invention unless specifically defined or limited otherwise, fisrt feature is on or below second feature It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the Right above two features and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature is in the second spy Under sign, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of fisrt feature level Height is less than second feature.

Embodiment 1:

Present embodiments provide friction test equipment 010 under a kind of atmosphere；Fig. 1, Fig. 2 and Fig. 3 are please referred to, Fig. 1 is The integrally-built axonometric drawing of friction test equipment 010 under atmosphere；Fig. 2 is friction test equipment 010 under atmosphere Main view；Fig. 3 is the right view of Fig. 2.

Friction test equipment 010 mainly includes rack 100, sample stage 200, inching gear 300, carries under above-mentioned atmosphere Lotus bringing device 400 and air charging system (not shown).Rack 100 provides support for other components of whole equipment, Sample stage 200 is arranged in rack 100 for sample 020 to be fixedly mounted, and inching gear 300 is for driving friction ball 322 in sample It moves reciprocatingly on product 020；Load bringing device 400 is used to apply load to friction ball 322；Air charging system is on sample stage Specific gas is passed through in outter box, so that sample is in specific atmosphere.Whole equipment passes through setting sensor and control Device (not shown) processed depresses size of the sample 020 by frictional force to acquire different loads, different displacements and no power.

Specifically, Fig. 2 and Fig. 4 are please referred to, Fig. 4 is the partial enlarged view in Fig. 2.Sample stage 200 is integrally provided in rack On 100, and it is slidably connected by the sliding block rail structure on sample stage 200 with rack 100.Sliding rail 429 is along first direction (Fig. 1 In Y1 extending direction) be disposed to extend, can be along above-mentioned cunning when sample stage 200 is by active force along first direction Rail moves in a certain range.Sample stage 200 includes outter box 210 and closing cap 220, and outter box 210 has upwardly opening Inner cavity；Test specimen 020 is closed in inner cavity by outter box 210 and closing cap 220 jointly, and the closing cap 220 offers The through-hole of permissible load application devices application load.

Fig. 5 and Fig. 6 are please referred to, Fig. 5 is that sample 020 is mounted on the top view in fixture 230, and Fig. 6 is the bottom view of Fig. 5.

In order to grip sample 020, sample stage 200 further comprises fixture 230；Above-mentioned fixture 230 includes two opposite The grip block 234 of the V-type gripper clamp 232 of setting and two semi-cylindricals, two grip blocks 234 form cylindric and are arranged Between the gripper clamp 232.The top of grip block 234 is provided with holding tank 2342, and the holding tank 2342 is for accommodating sample Product 020.

Fig. 5 and Fig. 6 are please referred to, Fig. 5 is that sample 020 is mounted on the top view in fixture 230, and Fig. 6 is the bottom view of Fig. 5.

In order to grip sample 020, sample stage 200 further comprises fixture 230；Above-mentioned fixture 230 includes two opposite The grip block 234 of the V-type gripper clamp 232 of setting and two semi-cylindricals, two grip blocks 234 form cylindric and are arranged Between the gripper clamp 232.The top of grip block 234 is provided with holding tank 2342, and the holding tank 2342 is for accommodating sample Product 020.

Since different samples 020 are made of different materials, some samples 020 may use precious metal, therefore be Save the cost, sample 020 are generally made into smaller structure.It but is that comparison is stranded by smaller 020 stable holding of sample Difficult.Then the present embodiment will be clamped first using sample 020 is clamped with fluted mounting portion 242 with the gripper clamp 232 of V-type Block 234 is clamped；So that not only having saved 020 cost of sample, but also sample 020 can be subjected to reliable retention.

Fig. 1 and Fig. 7 are please referred to, Fig. 7 is the structural schematic diagram of inching gear 300 and fixture 230.The inching gear 300 Including fine motion device 310, follower lever 320 and lifting platform 330；The bottom of the lifting platform 330 is connect with the rack 100, described Fine motion device 310 is connect with the top of the lifting platform 330.

With continued reference to FIG. 3, lifting platform 330 include pedestal 332, upright guide rail 334 and helical screw elevator 336, four The bottom of a upright guide rail 334 is fixedly connected with rack 100, and pedestal 332 is slidably matched with upright guide rail 334, helical screw liter The threaded rod of drop machine 336 is connect with pedestal 332.By shaking the handle of helical screw elevator 336, pedestal 332 can be upper and lower It is mobile.Helical screw elevator 336 is standard component, and the present embodiment is not described in detail its specific structure.

Please continue to refer to Fig. 1 and Fig. 7, fine motion device 310 is fixedly connected with pedestal 332, can be exported along the first party Reciprocating motion to (direction Y1 in Fig. 7) is provided with displacement sensor in the fine motion device 310；Displacement sensor acquires in real time The displacement signal of fine motion device 310.Fine motion device 310 can export micron-sized micro reciprocating motion, use pressure in the present embodiment Electroceramics fine motion device, can directly buy, and the present embodiment is not described in detail its internal structure.

It is connected with slide assemblies 340 on the output rod of fine motion device 310, slide assemblies 340 include the first sliding block 342 and connect One end of part 344, the first sliding block 342 is connect with fine motion device 310, and the other end is connect with connector 344.In order to reduce frictional force, The bottom of first sliding block 342 is provided with sliding rail 429.

Fig. 7 and Fig. 8 are please referred to, follower lever 320 extends in a first direction, and passes through slide assemblies 340 and the fine motion device 310 output rod connection；The follower lever 320 is pivotally connected by shaft 350 and the slide assemblies 340, and the shaft 350 is horizontal It is arranged and perpendicular to the first direction.By rotation follower lever 320, the space on 200 top of sample stage can be conceded, thus Convenient for the clamping of sample 020.

In order to improve the accuracy of acquired data as far as possible, it should keep 320 horizontal movement of follower lever.Therefore, driven Level tester is provided on bar 320.The bottom of 320 free end of follower lever is provided with friction ball 322, the friction ball 322 with the upper surface of sample 020 for cooperating.When adjustment is horizontal, friction ball 322 is placed in the upper surface of sample 020, is adjusted The height of lifting platform 330, so as to adjust follower lever 320 close to the height of 330 one end of lifting platform；Until follower lever 320 reaches To horizontal position.

Fig. 1 and Fig. 9 are please referred to, Fig. 9 is the structural schematic diagram of load bringing device 400.The load bringing device 400 wraps Column 410 and movable part 420 are included, the column 410 is connect with the rack 100, and the movable part 420 being capable of edge The column 410 is mobile and is capable of fixing in predeterminated position.In the present embodiment, column 410 includes screw rod 412 and guide part 414, Movable part 420 includes nut.The upper end of screw rod 412 is provided with rotating handle, and lower end is rotatably coupled with rack 100； Nut is threadedly engaged with screw rod 412, and rotary screw rod 412 enables to nut that entire movable part 420 is driven to move up and down.

The bottom of the movable part 420 is provided with the first compressed spring 430 (Fig. 7), first compressed spring 430 The top that 320 free end of follower lever is set.First compressed spring 430 can connect with movable part 420, can also To be only to abut.The movable part 420 and the junction of first compressed spring 430 are provided with pressure sensor 427.Pressure sensor 427 can acquire the load that movable part 420 applies to follower lever 320 in real time, and pass to control Device.

Specifically, such as Figure 10 and Figure 11, and cooperate with reference to Fig. 9, movable part 420 includes Mobile base 422, loaded member 425 and vibration excitor 426；The Mobile base 422 is connect by nut-screw rod structure with the column 410, the loaded member 425 and The Mobile base 422 is slidably matched by sliding block 428 and sliding rail 429 in the vertical direction, the 430 (figure of the first compressed spring 7) bottom of the loaded member 425 is set.

Being horizontally disposed on the Mobile base 422 has fixed plate 4222, and the fixed plate 4222 is arranged in the loaded member 425 Top.The second compressed spring 423 and guide post 424 are provided between the fixed plate 4222 and the loaded member 425, it is described Guide post 424 is vertically arranged, and one end of the guide post 424 is fixedly connected with the loaded member 425, the other end and the fixation Plate 4222 is slidably matched；Second compressed spring 423 is set in the guide post 424.

The top of the fixed plate 4222 is arranged in the vibration excitor 426, and the output shaft of the vibration excitor 426 is straight down The output shaft of setting, the vibration excitor 426 is detachably connected by nut-screw with the loaded member 425.The vibration excitor 426 For exporting the vibration of certain frequency, it can directly buy, no longer be described in detail.

The working principle of load bringing device 400 is as follows:

With continued reference to FIG. 9, when needing to study the relationship under dead load between frictional force and displacement, load, it is only necessary to Dead load is applied to sample 020.At this point, the connection of vibration excitor 426 and loaded member 425 is disconnected；By shaking on screw rod 412 Swinging handle moves downward so that movable part 420 is whole, when the upper end of the first compressed spring 430 is abutted with loaded member 425 When, continue to rotate swinging handle；Movable part 420 continues to move down.At this point, fixed plate 4222 passes through the second bullet of compression Spring, second spring push loaded member 425 to move downward relative to Mobile base 422；Loaded member 425 passes through the first spring and driven Bar 320 loads load on sample 020.

When needing to apply alternating load, first apply certain dead load to sample 020；Then by vibration excitor 426 with plus Holder 425 connects；The frequency and amplitude that vibration excitor 426 is arranged can apply alternating load later.

Please continue to refer to Fig. 1 and Fig. 2, in order to obtain data of the sample 020 by 322 frictional force of friction ball, in sample stage 200 left side is provided with friction measurement device 500, and the friction measurement device 500 is including friction force sensor 510 and admittedly Determine frame 520, the fixed frame 520 is fixedly connected with the rack 100.The sample stage 200, the inching gear 300 and institute It states friction measurement device 500 to arrange along first direction, the sample stage 200 is located at the fixed frame 520 and fills with the fine motion It sets between 300.Described 510 one end of friction force sensor is connect with the fixed frame 520, and the other end and the sample stage 200 connect It connects.

The change of the direction direction of relative movement for the frictional force that sample stage 200 and sample 020 are subject on the whole and change, because This friction force sensor 510 uses the sensor that can not only measure pulling force but also can measure pressure.

Air charging system (not shown) includes gas source and gas tube, and the gas source passes through the gas tube and the outer box The inner cavity of body is connected to.The gas source is sulfur dioxide generator and steam evaporator

Sulfur dioxide generator can be directly used common experimental provision in chemical laboratory, and steam evaporator can be with Using ultrasonic humidifier.Vapor and sulfur dioxide are passed into outer box intracoelomic cavity by gas source simultaneously using two gas tubes, To the andfrictional conditions of sample under Simulated Acid Rain environment.

In order to further increase the accuracy of data, outter box bottom is provided with the second sliding block and the second sliding rail, outter box It is slidably connected by the second sliding block and the second sliding rail, the second sliding rail is connect with rack.The top of first sliding rail and the second sliding rail is equal It is provided with the first magnet, the lower part of the first sliding block and the second sliding block is provided with the second magnet；First magnet and the second magnet It is magnetic opposite.

By the way that above-mentioned non-standard sliding block and sliding rail is arranged, so that being in during exercise in slide assemblies 340 and sample stage 200 Magnetic suspension state, to reduce extraneous interference to the greatest extent；So that collected frictional force data is more accurate.

It should be noted that vertical, horizontal, upper and lower mentioned in present disclosure and left and right etc. be with attached drawing 2 (i.e. Use state) it is reference.

Embodiment 2:

A kind of fine motion collecting method is present embodiments provided, which employs the fine motion data acquisitions in embodiment 1 to set It is standby；Mainly comprise the steps that

A. sample 020 is fixedly mounted on sample stage 200；And rotate follower lever 320, make 320 free end of follower lever On friction ball 322 be placed on the upper surface of sample 020；

B. 330 height of lifting platform for adjusting inching gear 300, so that follower lever 320 is horizontally disposed；

C. apply load, adjust position of the movable part 420 on column 410, so that the first compressed spring 430 is compressed And apply the constantly acting load of normal pressure to 320 free end of follower lever；Or vibration excitor 426 is connect with loaded member 425, and start and swash Shake device 426, so that the first compressed spring 430 applies alternating load to 320 automatic end of follower lever；

D. start inching gear 300, so that follower lever 320 does micro reciprocating motion；And start air charging system persistently to outer It inflates the inner cavity of box body；The intracorporal gas of outer box can be overflowed by the through-hole on closing cap；

Institute's displacement sensors, pressure sensor 427 and the friction force sensor 510 respectively pass collected data It is defeated by controller.

Since the self weight of follower lever 320 and friction ball 322 is also applied on sample 020, and pressure sensor 427 is Acquire the load come from above；It therefore further include that the data that pressure sensor 427 acquires are subtracted into follower lever 320 in Step d The pressure of sample 020 is applied to friction ball 322.

Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.

Claims (9)

1. friction test equipment under a kind of atmosphere characterized by comprising

Rack；

Sample stage, the sample stage include being slidably engaged along first direction in the outter box of the rack, the outter box With upwardly opening inner cavity；It is provided with closing cap on the outter box, is provided with through-hole on the closing cap；

Air charging system, the air charging system include gas source and gas tube, and the gas source passes through the gas tube and the outter box Inner cavity connection；

Inching gear, the inching gear include fine motion device and follower lever, and the fine motion device is connect with the follower lever；

The fine motion device can export the reciprocating motion along the first direction, be provided with displacement sensor on the fine motion device； The follower lever extends along the first direction, and the bottom of the follower lever free end is provided with friction ball, and the friction ball is used Cooperate in the upper surface of sample；

The top of the follower lever is arranged in load bringing device, the load bringing device, for applying to the follower lever Load；The load bringing device includes pressure sensor；

Friction measurement device, the friction measurement device include friction force sensor and fixed frame, the fixed frame and institute Rack is stated to be fixedly connected；The sample stage, the inching gear and the friction measurement device are arranged along first direction, described Sample stage is between the fixed frame and the inching gear；

Described friction force sensor one end is connect with the fixed frame, and the other end is connect with the sample stage；

Controller, the controller are electrically connected with institute displacement sensors, pressure sensor and the friction force sensor respectively.

2. friction test equipment under atmosphere according to claim 1, it is characterised in that:

The load bringing device includes column and movable part, and the column is connect with the rack, the movable part Part can be moved along the column and is capable of fixing in predeterminated position；The bottom of the movable part is provided with the first compression bullet The top of the follower lever free end is arranged in spring, first compressed spring；

The junction of the movable part Yu first compressed spring is arranged in the pressure sensor.

3. friction test equipment under atmosphere according to claim 2, it is characterised in that:

The movable part includes Mobile base, loaded member and vibration excitor；The Mobile base is connect with the column, the load Part is slidably matched in the vertical direction with the Mobile base, and the bottom of the loaded member is arranged in first compressed spring；

Being horizontally disposed on the Mobile base has fixed plate, and the top of the loaded member, the fixed plate is arranged in the fixed plate The second compressed spring and guide post are provided between the loaded member, the guide post is vertically arranged, and the one of the guide post End is fixedly connected with the loaded member, and the other end is slidably matched with the fixed plate；Second compressed spring is set in described In guide post；

The top of the fixed plate is arranged in the vibration excitor, and the output shaft of the vibration excitor is arranged straight down, the exciting The output shaft of device is detachably connected with the loaded member.

4. friction test equipment under atmosphere according to claim 1, it is characterised in that:

The follower lever is connect by slide assemblies with the output rod of the fine motion device；The follower lever passes through shaft and the cunning Dynamic component pivot joint, the shaft are horizontally disposed and perpendicular to the first direction；

Level tester is provided on the follower lever.

5. friction test equipment under atmosphere according to claim 4, it is characterised in that:

The inching gear further includes lifting platform, and the bottom of the lifting platform is connect with the rack, the fine motion device with it is described The top of lifting platform connects.

6. friction test equipment under atmosphere according to claim 5, it is characterised in that:

The lifting platform includes pedestal, upright guide rail and helical screw elevator, and the bottom of upright guide rail is fixedly connected with rack, Pedestal is slidably matched with upright guide rail, and helical screw elevator includes base and threaded rod, and the base is connect with the rack, The threaded rod is connect with the pedestal.

7. friction test equipment under atmosphere according to claim 4, it is characterised in that:

The slide assemblies include the first sliding block and connector, and one end of first sliding block is connect with the fine motion device, another End is connect with the connector；The bottom of first sliding block is provided with the first sliding rail.

8. friction test equipment under atmosphere according to claim 7, it is characterised in that:

The outter box bottom is provided with the second sliding block and the second sliding rail, and the outter box passes through second sliding block and described the Two sliding rails are slidably connected, and second sliding rail is connect with the rack；

The top of first sliding rail and second sliding rail is provided with the first magnet, and first sliding block and described second are slided The lower part of block is provided with the second magnet；

The magnetism of first magnet and second magnet is opposite.

9. friction test equipment under atmosphere according to claim 1, it is characterised in that:

The gas source is carbon-dioxide generator or steam evaporator or sulfur dioxide generator or air accumulator.