CN208705166U - Load bringing device and fretting test device - Google Patents

Abstract

The utility model relates to experimental rig fields, it is intended to solve the problems, such as that existing load bringing device conveniently cannot steadily realize that load applies or cannot provide a variety of load forms, provides load bringing device and fretting test device.Load bringing device includes straight line slide unit, loading head and elastic component.Straight line slide unit has sliding panel.Loading head is snug fit at sliding panel.Sliding panel, which has, applies the blocking portion that direction corresponds to loading head one end along load.The one end of loading head far from blocking portion is the loading end for being further applied load.Elastic component is located between the blocking portion and loading head of sliding panel.Sliding panel and its blocking portion are configured to adjust its setting position by being driven sliding to adjust the decrement to elastic component, and then loading head is pressed on by loaded member by elastic component, to apply dead load to by loaded member.The utility model has the beneficial effects that conveniently can steadily realize that load applies and can provide a variety of load forms.

Description

Load bringing device and fretting test device

Technical field

The utility model relates to experimental rig fields, in particular to load bringing device and fretting test device.

Background technique

Fretting test includes for simulating the mutually test of the damage mechanisms of fine motion friction between/research object.For Apply certain pressure load, settable load bringing device between test specimen and friction member.

However, existing load bringing device conveniently cannot steadily realize that load applies or cannot provide a variety of load shapes The problem of formula.

Utility model content

The utility model is intended to provide a kind of load bringing device, cannot be conveniently steady to solve existing load bringing device Surely the problem of load applies or cannot provide a variety of load forms is realized.

The another object of the utility model is to provide a kind of fretting test device for having above-mentioned load bringing device.

The embodiments of the present invention are achieved in that

A kind of load bringing device, including straight line slide unit, loading head and elastic component；

The straight line slide unit, which has to be driven, applies the sliding panel that direction slid onto or be locked in predeterminated position along load；

The loading head is snug fit at the sliding panel, and can the relatively described sliding panel along load to apply direction sliding It is dynamic；

The sliding panel, which has, applies the blocking portion that direction corresponds to described loading head one end along load；The loading head is remote One end from the blocking portion is the loading end for being further applied load；

The elastic component is located between the blocking portion and the loading head of the sliding panel；

The sliding panel and its blocking portion are configured to adjust its setting position by being driven sliding to adjust to institute The decrement of elastic component is stated, and then the loading head is pressed on by loaded member by the elastic component, to be applied to by loaded member Add dead load.

Load bringing device in the present embodiment can be used for providing between friction member and test specimen in fretting test Press load.Its working method can be that driving sliding panel slides onto the position for supporting the loading end of loading head by loaded member；So Continue that sliding panel is driven to slide onto the blocking portion contact resilient part for making sliding panel along load application direction afterwards, elastic component is hindered at this time Stopper and loading head will be clipped in the middle and the position of loading head is limited by loaded member；Continue to drive sliding panel along load application side Elastic component is compressed to sliding, finder charge is applied to by loaded member by elastic component and loading head to realize.

Thus, it is possible to obtain elastic component different compression by the position for the blocking portion for adjusting sliding panel, and then realize To the setting load needed for being applied by loaded member.

Optionally:

It further include being connected to the loading head close to the slide bar of described blocking portion one end；

The slide bar is slidably disposed through the hole being opened on the blocking portion, and expands to be formed to be greater than to receive in outer end and be somebody's turn to do The head in the hole on the blocking portion of slide bar, with the stroke pole along the separate blocking portion direction of the slide bar and the loading head Limit is limited by the head and the blocking portion；

The elastic component is the spiral shell for being placed on the body of rod of the slide bar and being sandwiched between the blocking portion and the loading head Revolve compressed spring.

Optionally:

The loading head is strip face close to the end face of one end of the blocking portion, is grown to being parallel to the sliding panel Outer plate surface simultaneously applies direction perpendicular to load；The end face of the loading head, which is equipped with to grow along it to two outsides being spaced apart, to be connected Contact；

The slide bar and the elastic component it is equal there are two, be opened in there are two the hole of the blocking portion also corresponds to；Two institutes Slide bar is stated to pass through two holes of the blocking portion correspondingly and be correspondingly connected with two outboard connections；Two bullets Property part is sheathed on the body of rod of two slide bars correspondingly.

Optionally:

The load applies direction vertically downward；

The straight line slide unit include horizonal base plate, the vertical vertical plate for being vertically connected at the horizonal base plate, be connected to it is described The ball screw structure of one plate face of vertical vertical plate, the silk for being fixed on the vertical vertical plate and the ball screw structure that is sequentially connected Bar is used to drive the driver of screw rod rotation and is connected to the slide plate of the output sliding block of the ball screw structure；

The sliding panel is removably attachable on the slide plate, and can be mobile with the slide plate.

Optionally:

The driving method of the sliding panel of the straight line slide unit is that manual actuation and/or driver drive.

Optionally:

It further include the load applicator for being fixed on the sliding panel；

The output end of the load applicator connects the loading head, and can apply additional load to the loading head； The additional load is the variable load that value constant constant load or value change over time.

Optionally:

The output end of the load applicator connects the loading head by a transmission rod；

Connection between the output end and the transmission rod of the load applicator is removably to be threadedly engaged connection, And/or the connection between the loading head and the transmission rod is removably to be threadedly engaged connection.

Optionally:

The upper part of the outer plate surface of the sliding panel is recessed along plate thickness direction, so that the outer plate surface of the sliding panel is in step Shape；

The blocking portion is plate structure, and the blocking portion is bonded in parallel and is connected to the section of recessed formation, and described The outer plate surface of the sliding panel is stretched out in the outer end of blocking portion；The middle position of the outer end of the stretching of the blocking portion is opened up for holding Perhaps the notch that the described transmission rod passes through；

The load applicator is partially accommodated in the outer plate surface partially along the recessed space in plate thickness direction, so that institute State the output end of load applicator and the axis collinear of the transmission rod；After being partially recessed into the outer plate surface of the sliding panel U-shaped frame is connected on surface, the load applicator is connected between the both side plate of the U-shaped frame, and the load applicator Output end towards the direction of the loading head.

A kind of load bringing device comprising the straight line slide unit being vertically arranged, further include loading head, load applicator, Two slide bars, transmission rod and two elastic components；

The straight line slide unit, which has to be driven, applies the sliding panel that direction slid onto or be locked in predeterminated position along load； The sliding panel have blocking portion, the blocking portion vertically protrude the sliding panel and be located at the load applicator and it is described plus Between carrier head；

The loading head is snug fit at the sliding panel, and can the relatively described sliding panel along load to apply direction sliding It is dynamic；The loading head, which has, applies the opposite loading end and force side in direction along load；The force side has intermediate connection point The outboard connection of the intermediate connection point two sides is located at two；

The slide bar includes the body of rod and head；The body of rod of the slide bar, which is slidably disposed through, is opened in the blocking portion Hole, and the body of rod end of two slide bars is correspondingly connected with two outboard connections of the force side of the loading head；Institute The size for stating head is greater than the size for receiving the hole of corresponding slide bar, for limiting the cunning of the relatively described sliding panel of the loading head Dynamic stroke；The elastic component is spiral compression spring, and two elastic component correspondences are arranged in outside the body of rod of two slide bars And be sandwiched between the blocking portion and the loading head, so that the blocking portion can be by the elastic component to the loading head Apply dead load；

It is opened up on the blocking portion jagged；The output end of the load applicator passes through the biography across the notch The detachably connected loading head of power bar is in the intermediate connection point of its force side, so that the output load of the load applicator It is superimposed on the dead load that the blocking portion is applied to the loading head by elastic component.

A kind of fretting test device comprising:

Rack；

Sample stage；The sample stand sliding is matched with the rack, and the sample stage includes being used for clamp assay sample Sample clamp；

Inching gear；The inching gear includes fine motion generator and friction member；The fine motion generator is configured to pass It moves the connection friction member and is able to drive the friction member and do reciprocal fine motion fricting movement on the surface of the sample；

Load bringing device above-mentioned；The loading head of the load bringing device corresponds to the friction member, and can be with The pressure load of setting by the friction member vertical press-fit in the surface of the test specimen, to generate the friction member and test sample Frictional force between product；

Friction measurement device；The friction measurement device is cooperatively connected in the sample stage, and can measure described Frictional force between friction member and test specimen.

Fretting test device in the present embodiment is in use, by load bringing device with the pressure load that sets by friction member Then vertical press-fit does reciprocal fine motion fricting movement with dynamic friction piece by inching gear, so that rubbing in test specimen surface It wipes part and applies reciprocal fine motion friction on the surface of test specimen.In above process, be applied to friction member and test specimen it Between pressure load measured by friction measurement device, the frictional force between friction member and test specimen is surveyed by friction measurement device It obtains, the shift reciprocately of reciprocal fine motion friction is provided by inching gear.

The fretting test device in the utility model embodiment, which can be realized, as a result, applies setting pressure load to sample, sets Determine frictional force, set shift reciprocately micro tribology movement, by by the micro tribology movement after sample surfaces abrasion analysis, Wearing character of the object under micro tribology can be referred to for the control of object micro tribology in practice and/or using support is provided.

Detailed description of the invention

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

A kind of three-dimensional view of embodiment of the fretting test device of the utility model embodiment is shown in Fig. 1；

Fig. 2 is the positive direction view of the part-structure of Fig. 1；

Fig. 3 is the lateral view of Fig. 1

Fig. 4 is the enlarged drawing of neighbouring part-structure at the A of Fig. 2；

Fig. 5 shows at least part of inching gear；

Fig. 6 is the positive direction view of Fig. 5；

Fig. 7 is a kind of schematic diagram of embodiment of fixture of the utility model embodiment；

Fig. 8 is the schematic diagram of the fixture another embodiment of the utility model embodiment；

A kind of embodiment of load bringing device is shown in Fig. 9；

Figure 10 is the lateral view of Fig. 9；

Figure 11 shows the part-structure of the positive direction view of Fig. 9.

Icon: 001- fretting test device；100- rack；101- bottom plate；102- cushion cap；103- rail structure；200- sample Sample platform；201- sample clamp；202- outter box；203- closing cap；300- inching gear；300a- adjusting bracket；301- fine motion occurs Device；301a- output end；302- sliding block guide track structure；302a- trapped orbit；302b- linear slider；303- fixed part；304- Movable part；305- fixture；305a- fixed block；305b- movable block；306- installs plate；309- locking mechanism；310- spiral Spring；311- installation set；312- cage plate；341- track frame；342- vertical position adjuster；The hand portion 342a-；342b- output Bar；343- slides board；400- load bringing device；401- horizonal base plate；The vertical vertical plate of 402-；403- stiffener plate；404- First screw rodb base；The second screw rodb base of 405-；406- screw rod；407- skateboard track；408- slide plate；410- sliding panel；411-U type frame 412- load applicator；413- transmission rod；414- loading head；415- pressure sensor；416- elastic component；417- slide bar；417a- Head；The 417b- body of rod；418- sliding block guide track structure；419- driver；420- driver rack；421- blocking portion；500- friction Force measuring device；501- measuring device erecting bed；B1- drive mechanism；B2- straight line slide unit；C3-V shape slot C4- strip groove；D1- is past Multiple fine motion output end；D2- loading end；D3- outboard connection；D4- intermediate connection point；G1- output end；K1- notch；M1- screw； P1- section；Q1- through-hole；S1- friction member；S2- test specimen；Y0- load applies direction；Y1- first straight line direction；Y2- second Rectilinear direction.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be noted that if occur term " center ", "upper", "lower", " left side ", The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position Relationship or the utility model product using when the orientation or positional relationship usually put, be merely for convenience of describing this reality It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific Orientation construction and operation, therefore should not be understood as limiting the present invention.If in addition, occurring in the description of the utility model Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.

If being not offered as requiring component in addition, occurring the terms such as term "horizontal", "vertical" in the description of the utility model Abswolute level or pendency, but can be slightly tilted.If "horizontal" only refers to that its direction is more horizontal with respect to for "vertical", It is not to indicate that the structure is had to fully horizontally, but can be slightly tilted.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, if there is art Language " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachable Connection, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, centre can also be passed through Medium is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

Embodiment

A kind of three-dimensional view of embodiment of the fretting test device 001 of the utility model embodiment is shown in Fig. 1； Fig. 2 is the positive direction view of the part-structure of Fig. 1；Fig. 3 is the lateral view of Fig. 1.

Referring to Figure 1 (cooperation referring to fig. 2, Fig. 3), the fretting test device 001 under present embodiment include: rack 100, Sample stage 200, inching gear 300, load bringing device 400 and friction measurement device 500.

Cooperation is referring to fig. 4, wherein sample stage 200 is slidably engaged along first straight line direction Y1 in rack 100, and sample Sample platform 200 includes the sample clamp 201 for clamp assay sample S2.The form of the collet of sample clamp 201 can be set into Diversified forms, and can be determined according to the shape of test specimen S2 to be pressed from both sides or other physicochemical properties.Such as circular examination Test sample S2, a pair of grip block with corresponding V-shaped groove can be set in the collet of sample clamp 201, be adjusted by the thread or its His mode adjusts the relative position of two grip blocks, clamps and unclamp test specimen S2's and/or realization test specimen S2 to realize Centering.

With continued reference to Fig. 4, in one embodiment, sample stage 200 includes the outter box 202 for being snug fit at rack 100, Outter box 202 has upwardly opening inner cavity, and sample clamp 201 is arranged in the inner cavity of outter box 202, is used for clamp assay sample Product S2.By the way that outter box 202 is arranged, it is convenient to which the test specimen S2 to be disposed therein constructs required experimental enviroment, example Such as chemical environment of high/low temperature environment, atmosphere, gas/liquid corrosive medium enables this equipment to simulate and assistant analysis The micro tribology of test specimen S2 under various circumstances.

For example, it is heat-insulated one layer of heat preservation can be arranged in the inner surface of outter box 202 when for needing to construct high/low temperature environment Layer and/or the closing cap 203 that opening that is openable or closing inner cavity is set on outter box 202；Likewise, closing cap 203 It can be set to incubation and thermal insulation function.Certainly, it should be opened up on closing cap 203 and friction member S1 is allowed to pass through and contact test sample The hole of product S2, the hole is settablely smaller, is lost with reducing heat from the hole.Pass through setting heat insulation layer and/closing cap 203, when needing to construct high/low temperature environment, test specimen S2 can heat by heating device/pass through refrigeration equipment pair The mode that test specimen S2 freezes is realized.Due to heat insulation layer and the/setting of closing cap 203, it can be achieved that be rapidly heated/ It is cooled to required temperature, and can more steadily be kept the temperature.Certainly, also settable for controlling to control range of temperature The temperature control system of temperature is existed the temperature control of test specimen S2 with controlling working efficiency or the start and stop of heating/refrigerating equipment In lesser range, such as within 1 DEG C, it is ensured that the stabilization of high/low temperature environment.

It, then can be corresponding by being inputted into outter box 202 for the chemical environment etc. of atmosphere, gas/liquid corrosive medium Gas/liquid/other corrosive mediums realize, under the situation its is close can be considered to a certain degree to the structure of sample stage 200 Feng Xing avoids revealing.

Referring to Fig. 3, inching gear 300 includes fine motion generator 301 and friction member S1 for cooperation；Fine motion generator 301 is by structure Cause transmission connection friction member S1 and be able to drive friction member S1 to do reciprocal fine motion fricting movement on the surface of sample.Load applies Device 400 be configured to correspond to friction member S1, and can with the pressure load of setting by friction member S1 vertical press-fit in test sample The surface of product S2, to generate the frictional force between friction member S1 and test specimen S2.Friction measurement device 500 be cooperatively connected in Sample stage 200, and the frictional force between friction member S1 and test specimen S2 can be measured.

In use, cooperation is referring to fig. 4, friction member S1 is vertically pressed with the pressure load of setting by load bringing device 400 Together in the surface test specimen S2, reciprocal fine motion fricting movement is then done with dynamic friction piece S1 by inching gear 300, so that rubbing It wipes part S1 and applies reciprocal fine motion friction on the surface of test specimen S2.In above process, friction member S1 and test are applied to Pressure load between sample S2 is provided by load bringing device 400, the frictional force between friction member S1 and test specimen S2 is by rubbing Force measuring device 500 measures, the shift reciprocately signal of reciprocal fine motion friction is provided by inching gear 300 for wiping.Certainly, it is needing When, the temperature of the test specimen S2 in sample stage 200 can be controlled to the value or range in needs.

As a result, the fretting test device 001 in the utility model embodiment can be realized to sample apply setting pressure load, The micro tribology movement for setting shift reciprocately passes through the abrasion and/or test process to the sample surfaces after micro tribology movement Frictional force situation of change analysis, can wearing character of the object analysis under micro tribology, for practice in object micro tribology control It makes and/or supports reference using providing.

In one embodiment, reciprocal fine motion fricting movement in the horizontal direction, and corresponding load bringing device 400 Load applies direction along the vertical direction.Inching gear 300, sample stage 200,500 three of friction measurement device are along reciprocal fine motion The directional spreding of fricting movement, friction measurement device 500 include that one end is connected to sample stage 200, other end fixed setting Piezoelectric transducer.The lower part of sample stage 200 is snug fit at rack along the direction of straight line where reciprocal fine motion fricting movement 100.The principle of the measurement frictional force of friction measurement device 500 under present embodiment are as follows: inching gear 300 is with dynamic friction piece S1 does reciprocal fine motion fricting movement, and under the reciprocal fine motion fricting movement, friction member S1 applies one to test specimen S2 and back and forth becomes The frictional force of change, sample stage 200 reciprocal tension and compression piezoelectric transducer of the frictional force by loading sample, the piezoelectric transducer sense Frictional force and the frictional force should can be converted to identifiable electric signal, to realize the measurement to frictional force.

In present embodiment, optionally, rack 100 includes bottom plate 101, is connected with cushion cap 102 on bottom plate 101；Sample stage Form sliding pair between 200 and the upper surface of cushion cap 102, for example, by the upper surface of cushion cap 102 be arranged rail structure 103, Sample stage 200 is connected on the sliding part of rail structure 103, to form the sliding pair.Wherein, bottom plate 101 can be one piece Biggish flat part can pass through the structures (not shown) such as pre-embedded bolt as the loading plate of entire fretting test device 001 It is connected to basic (such as floor plate).Cushion cap 102 may be configured as with certain altitude, so that the sample being attached to is located at properly Height, facilitate operator to use.Cushion cap 102 can be connected on bottom plate 101 by fasteners such as screw M1.

Measuring device erecting bed 501 can also be fixedly installed on cushion cap 102.It is measuring device erecting bed 501, sample stage 200, micro- Dynamic device 300 is set gradually along reciprocal fine motion fricting movement direction.Piezoelectric transducer one end is connected to measuring device erecting bed 501, the other end is connected to the side of sample stage 200, so that inching gear 300 is applied to test specimen S2's by friction member S1 Frictional force steadily acts on piezoelectric transducer, so that friction measurement is more acurrate reliable.

Under present embodiment, load bringing device 400 can be set to vertically be installed on cushion cap 102, apply load The examination for being corresponding in turn to the friction member S1 of the connection of inching gear 300 below the loading end D2 of feeder apparatus 400 and being clamped by sample stage 200 Sample S2 is tested, to realize the surface that the pressure load of setting is applied to test specimen S2 by friction member S1.

In present embodiment, inching gear 300 further includes the adjusting bracket 300a for being configured to vertically adjust lifting； Fine motion generator 301, which is set on adjusting bracket 300a and can be adjusted by adjusting bracket 300a, drives the vertical of fine motion generator 301 Position adjusts the vertical position of friction member S1 to realize the vertical position by adjusting fine motion generator 301, makes friction member S1 Lower end be exactly in contact with the upper surface of test specimen S2.In present embodiment, adjusting bracket 300a may be configured as including two levels The track frame 341, one being controlled at intervals on bottom plate 101 be set to vertical position adjuster 342 between two track frames 341, And one be vertically slidably connected to the sliding board 343 between two track frames 341 by sliding rail.Vertical position is adjusted Device 342 can be hand cranking structure, be also possible to other driving methods.It is illustrated as hand cranking structure comprising be fixed on bottom plate 101 Hand portion 342a connects the output rod 342b of sliding board 343 with vertically stretching and in upper end.It is hand by shaking when use Portion 342a drives output rod 342b vertically to go up and down, and then sliding board 343 is driven to go up and down, to adjust the perpendicular of sliding board 343 To position.And the fine motion generator 301 under present embodiment be connected to sliding board 343 on, with sliding board 343 by It increases drop and changes vertical position.Sliding board 343 in the present embodiment may include that a level board and two are connected to the level The lateral plate of plate two sides, two lateral plates are slidably connected to respectively on the track on the medial surface of corresponding track frame 341, with reality Now stable is vertically movable.

In one embodiment, referring to Fig. 5, Fig. 6, inching gear 300 includes fine motion generator 301 and drive mechanism B1；Fine motion generator 301 is configured to generate the reciprocal fine motion along first straight line direction Y1；Drive mechanism B1 includes along One rectilinear direction Y1 is connected to the fixed part 303 of fine motion generator 301 and is articulated and connected in the activity of 303 outer end of fixed part Part 304, the outer end of movable part 304 are provided for installation friction member S1 and reciprocal fine motion are transmitted to the past of friction member S1 Multiple fine motion output end D1；And the hinged shaft between movable part 304 and fixed part 303 is along perpendicular to first straight line direction The second straight line direction Y2 of Y1 extends.First straight line direction Y1, that is, reciprocal fine motion fricting movement above-mentioned direction.

Optionally, inching gear 300 further includes installing plate 306；It installs plate 306 and is fixedly connected on aforementioned sliding board 343 (seeing Fig. 1)；It is horizontally disposed that plate 306 is installed in the present embodiment；First straight line direction Y1 is in the horizontal direction； Second straight line direction Y2 is in the horizontal direction and perpendicular to first straight line direction Y1.

It installs and is provided with one on plate 306 by trapped orbit 302a and slidably engages in trapped orbit 302a and can The sliding block guide track structure 302 that the linear slider 302b that Y1 reciprocatingly slides along first straight line direction is constituted；Fine motion generator 301 is fixed In installation plate 306；The output end 301a connection linear slider 302b of fine motion generator 301, linear slider 302b are connected and fixed Part 303, so that fine motion generator 301 is indirectly connected with drive mechanism B1 by linear slider 302b.By the way that slide block guide rail is arranged The component that structure 302 is directly connected to as fine motion generator 301, it can be ensured that the output campaign of fine motion generator 301 edge always The axial direction of the output shaft of fine motion generator 301, output shaft are not readily susceptible to vertical shearing or bending stress, avoid damage fine motion Generator 301 or the precision for influencing the fine motion that fine motion generator 301 exports.

With continued reference to Fig. 5, Fig. 6, in one embodiment, fixed part 303 is U-shaped structure, and movable part 304 is item Shape plate；The length of movable part 304 is articulated and connected between the two sides of the U-shaped structure of fixed part 303 to one end, movable part Points 304 length is provided for installation friction member S1 to the other end and the reciprocal fine motion that reciprocal fine motion is transmitted to friction member S1 is defeated Outlet D1；Second straight line direction Y2 where the hinged shaft of movable part 304 and fixed part 303 is in the horizontal direction and vertically In first straight line direction Y1.Drive mechanism B1 further includes locking mechanism 309；Locking mechanism 309 includes across fixed part 303 The screw rod of movable part 304 between two sides and two sides, and the other side be threadedly coupled screw rod and can locking it is movable The nut (not shown) of the rotation of 304 relatively fixed part 303 of part.It can be locked by locking mechanism 309 after the completion of adjusting Fixed part 303 and movable part 304 avoid relative rotation influence jogging motion between the two from being transferred to the accurate of friction member Property.

Inching gear 300 in the present embodiment further includes the fixture 305 for clamping friction part S1；Fixture 305 is connected to Reciprocal fine motion output end D1, exposes friction member S1 downward；Fixture 305 includes fixed block 305a and movable block 305b；Fixed block 305a is fixed on reciprocal fine motion output end D1, and movable block 305b is removably attached to solid by screw M1 (seeing Fig. 7 or Fig. 8) Determine block 305a, and can be used in friction member S1 being pressed in fixed block 305a；And the logical of perforation is offered on movable block 305b Hole Q1 (sees Fig. 7 or Fig. 8), for allowing the part of friction member S1 to expose from through-hole Q1, as rubbing on the surface test specimen S2 The friction part of wiping.

The friction member S1 of different shape (spherical shape, cylinder etc.), the fixture 305 in the present embodiment are clamped for cooperation It may be configured as diversified forms.For example, as shown in fig. 7, fixed block 305a is recessed with V-shaped groove C3, V close to the end face of movable block 305b The corresponding through-hole Q1 being opened on movable block 305b of shape slot C3, for accommodating and clamping cylindrical friction member S1.In another example As shown in figure 8, the through-hole Q1 on movable block 305b is set as the small truncated cone-shaped hole of outer imperial palace, for accommodating and clamping spherical rub Wipe part S1.For the friction member S1 of aforementioned spherical/cylindrical friction member S1 or other shapes, other settable adaptations Fixture 305.

With continued reference to Fig. 5, Fig. 6, spiral is vertically connected on the upper surface of the reciprocal fine motion output end D1 of movable part 304 Spring 310, helical spring 310 are used to accept pressure load vertically, so that friction member S1 is flexibly pressed on examination by pressure load Test the upper surface of sample S2.For convenience of the position of adjustment helical spring 310, a position is connected in the upper surface of movable part 304 Adjustable cage plate 312, helical spring 310 are vertically connected on cage plate 312 and can be with the modulated movements of cage plate 312.It realizes The adjustable scheme in 312 position of cage plate has very much, such as strip groove C4 is opened up on cage plate 312, then by across the strip groove Cage plate 312 is fixed on movable part 304 by the screw M1 of C4.In addition, for convenience of the fixation of helical spring 310, on cage plate 312 It is fixedly provided with the installation set 311 with cylindrical hole vertically upward, the lower end of helical spring 310 is equipped in installation set 311 Cylindrical hole in.

The application method of inching gear in the present embodiment can be with are as follows: starting fine motion generator 301 makes it in first straight line Direction Y1 carries out reciprocal fine motion, which is transferred to the reciprocal fine motion output end D1 of drive mechanism B1, in actual use It can be in reciprocal fine motion output end D1 installation friction member S1 (such as being installed by fixture 305), so that the fortune of fine motion generator 301 It is dynamic to pass to friction member S1, for making friction member S1 in the reciprocal fine motion friction in the surface test specimen S2.

Referring to Fig. 9, Figure 10, Figure 11, the load bringing device 400 in the present embodiment includes the straight line slide unit being vertically arranged B2 further includes loading head 414,412, two slide bars 417 of load applicator, transmission rod 413 and two elastic components 416；Straight line Slide unit B2, which has to be driven, applies the sliding panel 410 that direction Y0 slid onto or be locked in predeterminated position along load；Sliding panel 410 With blocking portion 421, blocking portion 421 vertically protrudes sliding panel 410 and between load applicator 412 and loading head 414；Add Carrier head 414 is snug fit at sliding panel 410, and it is (such as settable to apply direction Y0 sliding along load with respect to sliding panel 410 For sliding block guide track structure 418, the cunning of the connected sliding block guide track structure 418 of the medial surface of loading head 414 are arranged on sliding panel 410 Block)；Loading head 414, which has, applies the opposite loading end D2 and force side of direction Y0 along load；The end face of force side is strip Face, grow to be parallel to 410 outer plate surface of sliding panel and perpendicular to load apply direction Y0；The end face of force side has intermediate connection Point D4 and two are located at the outboard connection D3 of the two sides intermediate connection point D4；Slide bar 417 includes body of rod 417b and head 417a；The body of rod 417b of slide bar 417 is slidably disposed through the hole for being opened in blocking portion 421, and the body of rod 417b of two slide bars 417 End is correspondingly connected with two outboard connection D3 of the force side of loading head 414；It is corresponding that the size of head 417a is greater than receiving The size in the hole of slide bar 417, for limiting sliding stroke of the loading head 414 with respect to sliding panel 410；Elastic component 416 is spiral pressure Contracting spring, the corresponding body of rod 417b for being arranged in two slide bars 417 of two elastic components 416 is outer and is sandwiched in blocking portion 421 and loading head Between 414, so that blocking portion 421 can apply dead load to loading head 414 by elastic component 416；It is offered on blocking portion 421 Notch K1；The output end G1 of load applicator 412 passes through the detachably connected loading head 414 of transmission rod 413 across notch K1 Intermediate connection point D4 in its force side, so that the output load superposition of load applicator 412 passes through elastic component in blocking portion 421 416 are applied to the dead load of loading head 414.Optionally, when blocking portion 421 is limited by head 417a, blocking portion 421 is close to elasticity The one side of part 416 is greater than the length of elastic component 416 to the distance between the force side of loading head 414.

In one embodiment, load applies direction Y0 vertically downward；Straight line slide unit B2 includes horizonal base plate 401, hangs down The direct-connected vertical vertical plate 402 for being connected to horizonal base plate 401, is fixed on the ball screw structure for being connected to vertical 402 1 plate face of vertical plate Driver 419 that vertical vertical plate 402 and the screw rod 406 for the ball screw structure that is sequentially connected are used to that screw rod 406 to be driven to rotate and It is connected to the slide plate 408 of the output sliding block (not shown) of ball screw structure；Sliding panel 410 is removably attachable to slide plate 408 On, and can be mobile with slide plate 408.Optionally, the driving method of the sliding panel 410 of straight line slide unit B2 be manual actuation and/or Driver 419 drives.It is illustrated as being driven by driver 419 (such as motor), the output end of driver 419 is connected to screw rod 406, uses It is rotated in drive screw rod 406, and then drives sliding panel 410 mobile.Driver 419 in present embodiment passes through a driver branch Frame 420 is connected to the upper end of vertical vertical plate 402.For the coupling stiffness between bottom plate 401 and vertical vertical plate 402 of improving the standard, water Flat underside 401 and vertical vertical plate 402 are T-shaped caused by being connected as, and ball screw structure is arranged in the side of vertical vertical plate 402, separately The stiffener plate 403 of the connection right angle support connection triangle of side.For installing first of screw rod 406 in the present embodiment Vertically compartment of terrain vertically connects vertical vertical plate 402 for pole socket 404 and the second screw rodb base 405, and screw rod 406 is rotatably supported at On one screw rodb base 404 and the second screw rodb base 405.The second screw rodb base 405 support positioned at lower part is connected on horizonal base plate 401.

Load bringing device 400 in the present embodiment can be used for providing friction member S1 and test specimen S2 in fretting test Between pressure load.The pressure load can be dead load, be also possible to variable load (such as alternate load).Load applicator 412 can be the alternate load applicator 412 that can apply alternate load, for example, electronics vibration excitor.

A kind of usage mode are as follows: the output end of load applicator 412 is made to connect loading head 414 by transmission rod 413.Driving Sliding panel 410 slide onto make the loading end D2 of loading head 414 support by loaded member position (place say be by loaded member Friction member S1 above-mentioned.)；It then proceedes to driving sliding panel 410 and slides onto the blocking for making sliding panel 410 along load application direction Y0 Portion 421 contact resilient part 416, elastic component 416 is blocked portion 421 and loading head 414 and will be clipped in the middle and loading head 414 at this time Position is limited by loaded member；Continue that sliding panel 410 is driven to compress elastic component 416 along load application direction Y0 sliding, with It realizes and finder charge is applied to by loaded member by elastic component 416 and loading head 414.It is applied only by adusting 410 position of sliding panel The load added is the steady state value depending on 416 decrement of elastic component.If not starting load applicator 412, realize to friction member S1 and test specimen S2 applies a dead load；If starting load applicator 412, load applicator 412 is made to export an alternate load, The alternate load overlaps aforementioned dead load collective effect in friction member S1, so that the pressure lotus between friction member S1 and test specimen S2 Carry for one near aforementioned dead load reciprocal alternate load.

Certainly, in other embodiments, if when it is only necessary to provide dead load, load applicator 412 above-mentioned, transmission rod 413 can give up and be not provided with.Accordingly, the force side of loading head 414 can also be not provided with the structure for connecting transmission rod 413 (such as intermediate connection point D4).Accordingly, the notch K1 for allowing transmission rod 413 to pass through on aforementioned blocking portion 421 can also Give up and is not provided with.When for not set load applicator 412, sliding panel 410 can also be not provided with into the recessed shape in top；It is corresponding Blocking portion 421 can directly be sliding panel 410 a part, be also possible to individual component, be removably connected to sliding panel On 410.

In addition, the quantity of elastic component 416 is also not necessarily two, and it can be one or more, it can be according to specific feelings Condition reasonable disposition.The quantity of corresponding slide bar 417 is arranged according to the quantity of elastic component 416.Also, in some cases, slide bar 417, which can also give up the lower slider for being not provided with, and controlling loading head 414 by other means, limits and/or compresses to elastic component 416 Guide function.

To measure the value for pressing load applied, pressure sensing can be set in the loading end D2 of loading head 414 in the present embodiment Device 415.Optionally, the end of pressure sensor 415 may be configured as the column-like head (not shown) extended downwardly, the size of column-like head Less than the mesoporous of said spiral spring 310.Both in use, column-like head is vertically matched in the mesoporous of helical spring 310, facilitate Limit cooperation.In addition, direct between loading head 414 and friction member S1 when the setting of helical spring 310 also avoids loading Impact, plays the role of buffering.

A kind of application method of the whole description present apparatus below.

Referring to aforementioned figures, fretting test device 001 in the present embodiment in use, in 200 clamping sample of sample stage, Then friction member S1 is installed in fixture 305 (can pacify for convenience of installation around the cocked movable part 304 of hinged shaft in fixture 305 Friction member S1 is filled, movable part 304 is put back to after installing again, friction member S1 is made to correspond to test specimen S2)；Then sliding panel is adjusted 410, so that the loading head 414 on sliding panel 410 is pushed friction member S1 with a level pressure load, and for convenience of positioning, make loading head In helical spring 310 on the corresponding insertion movable part 304 of the column-like head of the pressure sensor 415 of 414 ends connection；Apply Load can be dead load or variable load (such as alternate load)；The load is by friction member S1 vertical press-fit in test specimen S2 Upper surface, be connected to loading head 414 pressure sensor 415 acquire pressure signal be friction member S1 and test specimen S2 Between pressure load signal.Subsequently, the height of fine motion generator 301 is adjusted to making activity by vertical position adjuster 342 Part 304 keeps horizontal and movable part 304, fixed part 303, sliding block guide track structure 302 and fine motion generator 301 output Axis is on same level straight line, so that the movement that friction member S1 is driven the movement of generation and fine motion generator 301 generates is identical (such as synchronization, same frequency, same to amplitude), in this way can fine motion generator 301 export movement tested as friction member S1 Movement on sample S2.Again, in the motion process, the friction force signal between friction member S1 and test specimen S2 is by piezoelectricity The acquisition of formula sensor.

In this way, this test can input the reciprocal fine motion fricting movement of the pressure load of setting, setting as needed, for simulating not It (is such as simulated between bearing ball and inner ring, outer ring because the deformation generated by reciprocating pressure is led with the fine motion friction situation under live The micro tribology etc. of cause), and the friction force signal under the input between test specimen S2 and friction member S1 and one are exported by micro- The test specimen S2 of dynamic friction abrasion；By analyzing the damage situations on the surface test specimen S2 (by special point of this field Analysis tool or analysis method) and/or friction force signal variation, fine motion frictionally damage mechanism is studied.

In summary it describes, the fretting test device 001 in the utility model embodiment can be realized simulation fine motion friction Situation, the test specimen S2 by fine motion frictionally damage of acquisition are used for the research of fine motion frictionally damage mechanism.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of load bringing device, it is characterised in that:

Including straight line slide unit, loading head and elastic component；

The straight line slide unit, which has to be driven, applies the sliding panel that direction slid onto or be locked in predeterminated position along load；

The loading head is snug fit at the sliding panel, and can the relatively described sliding panel apply direction along load and slide；

The sliding panel, which has, applies the blocking portion that direction corresponds to described loading head one end along load；The loading head is far from institute One end of blocking portion is stated as the loading end for being further applied load；

The elastic component is located between the blocking portion and the loading head of the sliding panel；

The sliding panel and its blocking portion are configured to adjust its setting position by being driven sliding to adjust to the bullet Property part decrement, and then the loading head is pressed on by loaded member by the elastic component, with quiet to being applied by loaded member Load.

2. load bringing device according to claim 1, it is characterised in that:

It further include being connected to the loading head close to the slide bar of described blocking portion one end；

The slide bar is slidably disposed through the hole being opened on the blocking portion, and expands to be formed to be greater than in outer end and receive the slide bar Blocking portion on hole head, with the slide bar and the loading head along extreme limit of travel far from the blocking portion direction by The head and the blocking portion limit；

The elastic component is the spiral pressure for being placed on the body of rod of the slide bar and being sandwiched between the blocking portion and the loading head Contracting spring.

3. load bringing device according to claim 2, it is characterised in that:

The loading head is strip face close to the end face of one end of the blocking portion, is grown to being parallel to the sliding panel outside plate Face simultaneously applies direction perpendicular to load；The end face of the loading head, which is equipped with, to be grown along it to two outside connections being spaced apart Point；

The slide bar and the elastic component it is equal there are two, be opened in there are two the hole of the blocking portion also corresponds to；Two cunnings Bar passes through two holes of the blocking portion correspondingly and is correspondingly connected with two outboard connections；Two elastic components It is sheathed on the body of rod of two slide bars correspondingly.

4. load bringing device according to claim 1-3, it is characterised in that:

The load applies direction vertically downward；

The straight line slide unit include horizonal base plate, the vertical vertical plate for being vertically connected at the horizonal base plate, be connected to it is described vertical The ball screw structure of one plate face of vertical plate, the screw rod use for being fixed on the vertical vertical plate and the ball screw structure that is sequentially connected In the driver for driving screw rod rotation and the slide plate for the output sliding block for being connected to the ball screw structure；

The sliding panel is removably attachable on the slide plate, and can be mobile with the slide plate.

5. load bringing device according to claim 1, it is characterised in that:

The driving method of the sliding panel of the straight line slide unit is that manual actuation and/or driver drive.

6. load bringing device according to claim 1, it is characterised in that:

It further include the load applicator for being fixed on the sliding panel；

The output end of the load applicator connects the loading head, and can apply additional load to the loading head；It is described Additional load is the variable load that value constant constant load or value change over time.

7. load bringing device according to claim 6, which is characterized in that the output end of the load applicator passes through one Transmission rod connects the loading head；

Connection between the output end and the transmission rod of the load applicator be removably be threadedly engaged connection, and/or Connection between the loading head and the transmission rod is removably to be threadedly engaged connection.

8. load bringing device according to claim 7, it is characterised in that:

The upper part of the outer plate surface of the sliding panel is recessed along plate thickness direction, so that the outer plate surface of the sliding panel is in step；

The blocking portion is plate structure, and the blocking portion is bonded in parallel and is connected to the section of recessed formation, and the blocking The outer plate surface of the sliding panel is stretched out in the outer end in portion；The middle position of the outer end of the stretching of the blocking portion is opened up for allowing State the notch that transmission rod passes through；

The load applicator is partially accommodated in the outer plate surface partially along the recessed space in plate thickness direction, so that the lotus Carry the output end of applicator and the axis collinear of the transmission rod；Surface after being partially recessed into the outer plate surface of the sliding panel On be connected with U-shaped frame, the load applicator is connected between the both side plate of the U-shaped frame, and the load applicator is defeated Outlet is towards the direction of the loading head.

9. a kind of load bringing device, it is characterised in that:

It further include loading head, load applicator, two slide bars, transmission rod and two including the straight line slide unit being vertically arranged Elastic component；

The straight line slide unit, which has to be driven, applies the sliding panel that direction slid onto or be locked in predeterminated position along load；It is described Sliding panel has blocking portion, and the blocking portion vertically protrudes the sliding panel and is located at the load applicator and the loading head Between；

The loading head is snug fit at the sliding panel, and can the relatively described sliding panel apply direction along load and slide；Institute Stating loading head has the loading end and force side opposite along load application direction；The force side has intermediate connection point and two It is located at the outboard connection of the intermediate connection point two sides；

The slide bar includes the body of rod and head；The body of rod of the slide bar is slidably disposed through the hole for being opened in the blocking portion, and The body of rod end of two slide bars is correspondingly connected with two outboard connections of the force side of the loading head；The head Size be greater than the size for receiving the hole of corresponding slide bar, for limiting the sliding row of the relatively described sliding panel of the loading head Journey；The elastic component is spiral compression spring, and the corresponding body of rod for being arranged in two slide bars of two elastic components is outer and presss from both sides Between the blocking portion and the loading head, so that the blocking portion can apply the loading head by the elastic component Dead load；

It is opened up on the blocking portion jagged；The output end of the load applicator passes through the transmission rod across the notch The detachably connected loading head is in the intermediate connection point of its force side, so that the output load superposition of the load applicator The dead load of the loading head is applied to by elastic component in the blocking portion.

10. a kind of fretting test device characterized by comprising

Rack；

Sample stage；The sample stage edge is snug fit at the rack, and the sample stage includes for clamp assay sample Sample clamp；

Inching gear；The inching gear includes fine motion generator and friction member；The fine motion generator is configured to transmission and connects It connects the friction member and is able to drive the friction member and do reciprocal fine motion fricting movement on the surface of the sample；

The described in any item load bringing devices of claim 1-9；The loading head of the load bringing device corresponds to described rub Wipe part, and can with the pressure load of setting by the friction member vertical press-fit in the surface of the test specimen, described in generation Frictional force between friction member and test specimen；

Friction measurement device；The friction measurement device is cooperatively connected in the sample stage, and can measure the friction Frictional force between part and test specimen.