CN208366754U

CN208366754U - The device of the secondary assessment material abrasion behavior of Wheel-type friction

Info

Publication number: CN208366754U
Application number: CN201820872740.8U
Authority: CN
Inventors: 李金龙; 董嘉; 王立平
Original assignee: Ningbo Institute of Material Technology and Engineering of CAS
Current assignee: Ningbo Institute of Material Technology and Engineering of CAS
Priority date: 2018-06-06
Filing date: 2018-06-06
Publication date: 2019-01-11
Anticipated expiration: 2028-06-06

Abstract

The utility model discloses a kind of devices of the secondary assessment material abrasion behavior of Wheel-type friction.The device includes: that friction is secondary, including sample wheel and to mill, it is fixed with material to be assessed on the sample wheel, it is described to being fixed with abrasive material on mill, the sample wheel and mill is matched by the rubbing action between the material to be assessed and abrasive material；Load mechanism, at least for applying different load to the friction is secondary；Angle adjusting mechanism, at least for adjusting the secondary rubbing angle of the friction；Driving mechanism, at least for independently driving sample wheel and to mill.Apparatus structure provided by the utility model is simple, facilitate abrasion behavior and wear mechanism of the accurate evaluation moving component under a variety of actual working states, by changing load, abrasive material and dry and wet condition, more fully simulate the assessment under various working to wear hardness, and it is low in cost, it is with a wide range of applications.

Description

The device of the secondary assessment material abrasion behavior of Wheel-type friction

Technical field

The device of in particular to a kind of secondary assessment material abrasion behavior of Wheel-type friction of the utility model, belongs to Abrasion detecting Technical field.

Background technique

Two classes: laboratory research and live operation study are broadly divided into currently for the evaluation of material polishing machine.Fact fortune Row test the data obtained is accurate, fitting is practical, but general test cost is big, low efficiency.Laboratory research at present is mainly with reality The test of room abrasion tester is tested to rely on, but its measurement condition is single, and abrasive material when material components use, environmental factor and The objective condition such as running movement state are complicated and changeable, and material wear-resistant damages Performance Evaluation and life forecast and material components visitor Gap under sight, true operating condition is larger, it could be also difficult to really assess above-mentioned moving component under actual working state Abrasion behavior and wear mechanism.

Utility model content

It rubs the device of secondary assessment material abrasion behavior the main purpose of the utility model is to provide a kind of Wheel-type, with Overcome the deficiencies in the prior art.

For the aforementioned purpose of utility model of realization, the technical solution adopted in the utility model includes:

The utility model embodiment provides a kind of device of secondary assessment material abrasion behavior of Wheel-type friction comprising:

Friction is secondary, including sample wheel and to mill, is fixed with material to be assessed on the sample wheel, described to solid on mill Surely there is an abrasive material, the sample wheel and the rubbing action between the material to be assessed and abrasive material is passed through to mill match It closes；

Load mechanism, at least for applying different load to the friction is secondary；

Angle adjusting mechanism, at least for adjusting the secondary rubbing angle of the friction；

Driving mechanism, at least for independently driving sample wheel and to mill.

Further, the sample wheel and identical or different to the diameter of mill, the wheel shaft of the sample wheel with to mill Wheel shaft be mutually perpendicular to.

Preferably, the wheel shaft of the sample wheel is horizontally disposed.

Further, the side disk setting to mill is fluted, and the abrasive material is placed in the groove It is interior.

Preferably, the groove is annular recess.

Further, the driving mechanism includes the first driving mechanism and the second driving mechanism, first driving mechanism With the second driving mechanism respectively with test wheel, to mill transmission connection.

Preferably, the device further includes speed adjusting gear, and the speed adjusting gear is at least to adjusting sample wheel and/or examination The revolving speed of sample wheel.

Preferably, first driving mechanism and the second driving mechanism include motor, and the speed adjusting gear includes and electricity The machine governor of machine cooperation.

Further, the angle adjusting mechanism includes angular adjustment track, and at least described sample wheel can be along the angle It is mobile to spend adjustable track, in the sample wheel and to forming different rubbing angles between mill.

Preferably, the angular adjustment track is the arc track being arranged along the opposite grinding plate edge.

Preferably, the angle of regulation range of the angular adjustment track is 0-180 °.

Preferably, the angle adjusting mechanism further includes support frame, and one end of support frame as described above is connect with the sample wheel, The other end is connect with the angular adjustment track.

Preferably, described device further includes angle fixed mechanism, and the angle fixed mechanism is connect with support frame as described above.

Further, the load mechanism includes hydraulic loading mechanism, the hydraulic loading mechanism include hydraulic tray and Hydraulic mechanism, the hydraulic mechanism are connect with hydraulic tray, and the hydraulic tray is set to described to below mill.

Preferably, the hydraulic tray and to being additionally provided with pressure sensor between mill.

Further, the device further include: collecting mechanism, at least to collect the abrasive dust being discharged from friction pair And/or waste material.

Preferably, the collecting mechanism includes cleaning agency, and the cleaning agency includes abrasive dust brush fixed frame and removable Unload the abrasive dust brush for being connected to described abrasive dust brush fixed frame one end.

Preferably, the abrasive dust brush fixed frame connects in such a way that abrasive dust brush is in conjunction with magnetic force.

Further, the device includes: rack cabinet, the load mechanism, angle adjusting mechanism, driving mechanism, Cleaning agency is mounted on the rack cabinet.

Further, the device further include: central control system mechanism, the central control system mechanism respectively with the load Mechanism, driving mechanism connection, and the working condition at least to control the load mechanism, driving mechanism.

Further, the central control system mechanism further includes velocity measurement mechanisms, and the velocity measurement mechanisms are at least described to measure Sample wheel and/or revolving speed to mill.

Preferably, the velocity measurement mechanisms include the counting to measure the sample wheel and/or the turnning circle to mill Mechanism.

Preferably, the counting mechanism includes electronic counter.

The utility model embodiment additionally provides a kind of based on the different operating condition assessment material abrasion of the secondary simulation of Wheel-type friction The method of behavior comprising:

The device that the Wheel-type rubs secondary assessment material abrasion behavior is provided,

Material to be assessed, abrasive material are separately fixed at sample wheel, on mill；And

Make sample wheel and to mill independently with certain rotational speed, by adjusting sample wheel and to the fortune of mill Dynamic state, to realize the assessment of material abrasion behavior under different working conditions.

Preferably, the method includes: and fixes abrasive material in a manner of any one in pour, spray or stick In in the groove to mill side.

Preferably, the method further include: apply different load by the way that load mechanism is secondary to friction.

Preferably, the method further include: by speed adjusting gear to the revolving speed of adjustment opposite grinding disk and/or sample wheel.

Preferably, the method further include: sample wheel is changed by angle adjusting mechanism and to the friction between mill Angle.

Preferably, the method further include: before sample wheel and to mill rotation or in sample wheel and to mill It during rotation, is added to the secondary contact area that rubs or does not add solid and/or liquid, to realize dry and wet abrasion condition Transformation.

Preferably, the method further include: the abrasive dust and/or waste liquid of the secondary output of friction are collected after friction, and It clears up sample wheel, to the abrasive dust on mill, then subsequent analysis and evaluation is carried out to the polishing scratch of abrasive dust and material surface to be assessed.

Compared with prior art, the device of the secondary assessment material abrasion behavior of a kind of Wheel-type friction provided by the utility model Structure is simple, and method is succinct, facilitates abrasion behavior and abrasion of the accurate evaluation moving component under a variety of actual working states Mechanism, by changing load, abrasive material and dry and wet condition, the more fully assessment under simulation various working to wear hardness, And it is low in cost, it is with a wide range of applications.

Detailed description of the invention

Fig. 1 is a kind of device of the secondary assessment material abrasion behavior of Wheel-type friction in one exemplary embodiments of the utility model Structural schematic diagram；

Fig. 2 is a kind of device of the secondary assessment material abrasion behavior of Wheel-type friction in one exemplary embodiments of the utility model Structural schematic diagram；

Fig. 3 is the schematic diagram of the section structure of a kind of pair of mill in one exemplary embodiments of the utility model；

Fig. 4 is test pavement simulating disc (i.e. to mill) and cement, asphalt surface simulation disc in the utility model embodiment 1 Pictorial diagram；

Fig. 5 is that tread rubber simulates different road surface operating condition (cement, asphalt surface operating condition) lower volume abrasion loss comparison diagrams；

Fig. 6 a, Fig. 6 d are that No. 1 tread rubber wears rear surface shape appearance figure under asphalt surface and cement pavement operating condition respectively；

Fig. 6 b, Fig. 6 e are that No. 2 tread rubbers wear rear surface shape appearance figure under asphalt surface and cement pavement operating condition respectively；

Fig. 6 c, Fig. 6 f are that No. 3 tread rubbers wear rear surface shape appearance figure under asphalt surface and cement pavement operating condition respectively；

Description of symbols: 1- pressure sensor, 2- hydraulic tray, 3- opposite grinding disc drive motor, 4- electro-hydraulic press, 5- data line, 6- sample wheel drive electric machine support, 7- central control system mechanism, 8- report control platform, 9- are to mill, 10- cabinet Rack, 11- angular adjustment track, 12- bracket fastening screw, 13- sample wheel drive motor, 14- sample wheel shaft, 15- examination Sample wheel, 16- abrasive dust brush fixed frame, 17- abrasive dust brush, 18- confinement gasket, 19- disc security screw, 20- abrasive material, 91- are recessed Slot.

Specific embodiment

In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose that this is practical new The technical solution of type.The technical solution, its implementation process and principle etc. will be further explained as follows.

Driving mechanism, at least for independently driving sample wheel and to mill.

Preferably, the wheel shaft of the sample wheel is horizontally disposed.

Preferably, the groove is annular recess.

Preferably, the counting mechanism includes electronic counter.

It as follows will be further to works such as the technical solution, its implementation process and principles in conjunction with attached drawing and specific embodiment It illustrates.

Please refer to Fig. 1-Fig. 3, a kind of device of the secondary assessment material abrasion behavior of Wheel-type friction comprising: rack cabinet 10,10 side of rack cabinet is provided with report control platform 8, and the other side is equipped with friction pair, load mechanism, angle adjusting mechanism, drive Motivation structure and collecting mechanism；Load mechanism and driving mechanism are connect through data line 5 with central control system mechanism 7；

Friction is secondary, including sample wheel 15 and to mill 9, material to be assessed is fixed on sample wheel 15, to solid on mill 9 Surely there is an abrasive material, sample wheel and mill is matched by the rubbing action between the material to be assessed and abrasive material； The wherein sample wheel 15 and identical or different to the diameter of mill 9, the wheel shaft of sample wheel 15 mutually hang down with the wheel shaft to mill Directly (i.e. sample wheel and mill is mutually perpendicular to)；Wherein mill 9 is horizontally placed on rack cabinet 10；To the side of mill 9 Disk is provided with annular recess 91, and abrasive material 20 is placed in annular recess 91；

Driving mechanism comprising sample wheel drive motor (i.e. the first driving mechanism) 13 and opposite grinding disk-drive motor (i.e. Two mechanisms) 3；Sample wheel drive motor 13 is sequentially connected through sample wheel shaft 14 and sample wheel 15, and opposite grinding disk-drive motor 3 passes through Hydraulic tray 2 is sequentially connected with to mill 9, and sample wheel drive motor 13 and opposite grinding disk-drive motor 3 are respectively to sample wheel 15, right The independent driving of mill 9；Wherein, opposite grinding disk-drive motor 3 and hydraulic tray 2 are sequentially connected, and are placed in hydraulic tray 2 to mill 9 Top；Sample wheel drive motor 13 and opposite grinding disk-drive motor 3 are also connected with machine governor, and the machine governor is in System authority connection is controlled, and at least to adjusting sample wheel and to the revolving speed of mill；

Load mechanism comprising the hydraulic loading mechanism being installed in rack cabinet 10, hydraulic loading mechanism include setting Electro-hydraulic press (i.e. hydraulic mechanism) 4 below hydraulic tray, electro-hydraulic press 4 is connect with the lower part of hydraulic tray；In liquid Pressure pallet and to being additionally provided with pressure sensor 1 between mill, with monitor 4 pairs of friction pairs of electro-hydraulic press apply it is stressed greatly It is small；

Angle adjusting mechanism comprising along the angular adjustment track 11 that mill is arranged and can be along angular adjustment rail The mobile sample wheel drive motor bracket (i.e. support frame as described above) 6 in road 11, the sample wheel drive motor bracket 6 drive with sample wheel Dynamic motor 13 connects, to drive the sample wheel to move along the angular adjustment track, in the sample wheel and to mill Between form different rubbing angles, and be additionally provided with bracket fastening screw (i.e. angle on sample wheel drive motor bracket 6 Fixed mechanism) 12, at least to fixed sample wheel drive motor bracket 6；Wherein angular adjustment track is along described to mill The arc track of edge setting, angle of regulation range are 0-180 °；

Collecting mechanism comprising cleaning agency, the cleaning agency include abrasive dust brush fixed frame 16 and be detachably connected Abrasive dust brush 17 in described abrasive dust brush fixed frame one end, abrasive dust brush fixed frame 16 are fixed on rack cabinet 10；Wherein in abrasive dust The bottom of brush fixed frame 16 and the top of abrasive dust brush 17 are provided with magnet, the bottom of abrasive dust brush fixed frame 16 and abrasive dust brush 17 with The mode that magnetic force combines is detachably fixed connection, and the specific structure of abrasive dust brush 17 is determined according to different working conditions；

And the hollow system mechanism further includes counting mechanism, the counting mechanism at least to measure sample wheel and/ Or the revolution to mill.

Specifically, a kind of based on the secondary method for simulating different operating condition assessment materials abrasion behaviors of Wheel-type friction comprising:

By driving mechanism and electrode governor make sample wheel and to mill independently with certain rotational speed；

It is realized by electro-hydraulic press to applying different load to mill；

By angle adjusting mechanism to change sample wheel and to the rubbing angle between mill；

Before sample wheel and to mill rotation or in sample wheel and during rotated to mill, to the secondary contact of friction Region adds or does not add solid and/or liquid, to realize the transformation of dry and wet abrasion condition；

By replacing to the abrasive material in mill to change operating condition；

The abrasive dust and/or waste liquid of the secondary output of friction are collected after friction by collecting mechanism, and clears up sample wheel, opposite grinding Abrasive dust on disk, then subsequent analysis and evaluation are carried out to the polishing scratch of abrasive dust and material surface to be assessed.

Preferably, abrasive material is fixed on to mill side in a manner of any one in pour, spray or stick In groove.

Embodiment 1

Using a kind of Wheel-type provided by the embodiment of the utility model rub secondary assessment material abrasion behavior device and side Method is evaluated for tire tread glue with wear hardness when bituminous concrete and cement concrete opposite grinding, i.e. simulation tread rubber With the polishing machine under cement and asphalt surface operating condition.

Test procedure is as follows:

1 cement pavement of table and asphalt surface match ratio (unit: mass parts)

Test pavement simulating disc (i.e. to mill) and cement, asphalt surface simulation disc pictorial diagram are shown in Fig. 4, will match by table 1 Cement mortar be cast in disc groove, struck off with scraping blade, stand 3-7 days, can obtain cement pavement simulate disc.Similarly, It is cast in the hot mix tar sand being stirred is matched by table 1 in disc groove, with hydraulic press compacting, flattens, be placed on drying Shady place 3-7 days, asphalt surface simulation disc can be obtained.

By 1-3 tread rubber in simulation cement, friction-wear test under asphalt surface operating condition, all test process are in room 20 DEG C -25 DEG C of interior temperature, relative air humidity 10%-15%, revolution 6836 turns of (1.61km), service loads: the item of 500g It is carried out under part.Each tread rubber sample to be tested is handled through absolute alcohol ultrasonic cleaning, drying at room temperature etc. before testing.Use analysis day Flat precise test front and back sample quality, is calculated as m respectively₃And m₄, Volume erosion rate is calculated according to formula (1), wherein ρ is tyre surface Vulcanizate density；Every group of experiment is in triplicate.

Results and discussion:

Tread rubber simulates different road surface operating condition (cement, asphalt surface operating condition) lower volume abrasion losses and sees Fig. 5.As shown in Figure 5 Tread rubber wear rate on cement pavement is higher than the wear rate on asphalt surface.This is because the roughness of cement flooring is lower than Asphalt surface, at the same pressure, cement flooring and the tread rubber real contact area of surface relatively flat are greater than and asphalt road Real contact area on face, thus the abrasion loss on cement pavement is larger.In addition, either cement or asphalt surface, Different tread rubber abrasion loss changing rules are consistent, i.e., No. 1 tread rubber abrasion loss is maximum, and No. 2 tread rubbers take second place, No. 3 tread rubber mills Damage amount is minimum.

Fig. 6 a- Fig. 6 c is respectively 1-3 tread rubber abrasion rear surface pattern under asphalt surface operating condition；Fig. 6 d- Fig. 6 f difference Rear surface pattern is worn for 1-3 tread rubber under cement pavement operating condition.By Fig. 6 a-6f it is found that under cement pavement operating condition, No. 1 There is larger tearing, groove and peeling pit in tread rubber wear surface, and No. 2 tread rubbers and No. 3 surfaces occur parallel in various degree In the scratch and peeling pit of glide direction, blocky, sheet abrasive dust is all adhered on surface.Research shows that the abrasion under cement pavement operating condition It is leading that mechanism belongs to abrasive wear；Under asphalt surface operating condition, there is big tearing, peeling and table in No. 1 tread rubber wear surface Blocky abrasive dust is adhered in face, is at this time abrasive wear, and all multi asperities and a little stripping occur in No. 2 tread rubbers and No. 3 tread rubber surfaces Hole is fallen, a little block bulk abrasive dust is adhered on surface, and abrasion mechanism is that abrasive wear and fatigue wear coupling are leading at this time.

It should be appreciated that above-described embodiment is only to illustrate the technical ideas and features of the present invention, it is ripe its object is to allow The personage for knowing technique can understand the content of the utility model and implement accordingly, can not limit the utility model with this Protection scope.All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the utility model Within protection scope.

Claims

The device of secondary assessment material abrasion behavior 1. a kind of Wheel-type rubs, characterized by comprising:

Friction is secondary, including sample wheel and to mill, is fixed with material to be assessed on the sample wheel, described to being fixed on mill Abrasive material, the sample wheel and is matched mill by the rubbing action between the material to be assessed and abrasive material；

Load mechanism, at least for applying different load to the friction is secondary；

Angle adjusting mechanism, at least for adjusting the secondary rubbing angle of the friction；

Driving mechanism, at least for independently driving sample wheel and to mill.
The device of secondary assessment material abrasion behavior 2. Wheel-type according to claim 1 rubs, it is characterised in that: the examination Sample wheel and identical or different to the diameter of mill, wheel shaft and the wheel shaft to mill of the sample wheel are mutually perpendicular to.
The device of secondary assessment material abrasion behavior 3. Wheel-type according to claim 2 rubs, it is characterised in that: the examination The wheel shaft of sample wheel is horizontally disposed.
The device of secondary assessment material abrasion behavior 4. Wheel-type according to claim 1 rubs, it is characterised in that: described right The side disk setting of mill is fluted, and the abrasive material is placed in the groove.
The device of secondary assessment material abrasion behavior 5. Wheel-type according to claim 4 rubs, it is characterised in that: described recessed Slot is annular recess.
The device of secondary assessment material abrasion behavior 6. Wheel-type according to claim 1 rubs, it is characterised in that: the drive Motivation structure includes the first driving mechanism and the second driving mechanism, first driving mechanism and the second driving mechanism respectively with test Wheel is sequentially connected to mill.
The device of secondary assessment material abrasion behavior 7. Wheel-type according to claim 6 rubs, it is characterised in that: described Device further includes speed adjusting gear, and the speed adjusting gear is at least to adjusting sample wheel and/or the revolving speed of sample wheel.
The device of secondary assessment material abrasion behavior 8. Wheel-type according to claim 7 rubs, it is characterised in that: described the One driving mechanism and the second driving mechanism include motor, and the speed adjusting gear includes the machine governor with motor cooperation.
The device of secondary assessment material abrasion behavior 9. Wheel-type according to claim 1 rubs, it is characterised in that: the angle Spending regulating mechanism includes angular adjustment track, and at least described sample wheel can be moved along the angular adjustment track, described Sample wheel and to forming different rubbing angles between mill.
The device of secondary assessment material abrasion behavior 10. Wheel-type according to claim 9 rubs, it is characterised in that: described Angular adjustment track is the arc track being arranged along the opposite grinding plate edge.
The device of secondary assessment material abrasion behavior 11. Wheel-type according to claim 10 rubs, it is characterised in that: described The angle of regulation range of angular adjustment track is 0-180 °.
The device of secondary assessment material abrasion behavior 12. Wheel-type according to claim 9 rubs, it is characterised in that: described Angle adjusting mechanism further includes support frame, and one end of support frame as described above is connect with the sample wheel, the other end and the angle tune Save track connection.
The device of secondary assessment material abrasion behavior 13. Wheel-type according to claim 12 rubs, it is characterised in that: described Device further includes angle fixed mechanism, and the angle fixed mechanism is connect with support frame as described above.
The device of secondary assessment material abrasion behavior 14. Wheel-type according to claim 1 rubs, it is characterised in that: described Load mechanism includes hydraulic loading mechanism, and the hydraulic loading mechanism includes hydraulic tray and hydraulic mechanism, the hydraulic mechanism It is connect with hydraulic tray, the hydraulic tray is set to described to below mill.
The device of secondary assessment material abrasion behavior 15. Wheel-type according to claim 14 rubs, it is characterised in that: described Hydraulic tray and to being additionally provided with pressure sensor between mill.
The device of secondary assessment material abrasion behavior 16. Wheel-type according to claim 1 rubs, it is characterised in that also wrap It includes: collecting mechanism, at least to collect the abrasive dust and/or waste material that are discharged from friction pair.
The device of secondary assessment material abrasion behavior 17. Wheel-type according to claim 16 rubs, it is characterised in that: described Collecting mechanism includes cleaning agency, and the cleaning agency includes abrasive dust brush fixed frame and to be removably connected to the abrasive dust brush solid Determine the abrasive dust brush of frame one end.
The device of secondary assessment material abrasion behavior 18. Wheel-type according to claim 17 rubs, it is characterised in that: described Abrasive dust brush fixed frame connects in such a way that abrasive dust brush is in conjunction with magnetic force.
The device of secondary assessment material abrasion behavior 19. Wheel-type according to claim 16 rubs, characterized by comprising: Rack cabinet, the load mechanism, angle adjusting mechanism, driving mechanism, cleaning agency are mounted on the rack cabinet.
The device of secondary assessment material abrasion behavior 20. Wheel-type according to claim 1 rubs, characterized by comprising: Central control system mechanism, the central control system mechanism are connect with the load mechanism, driving mechanism respectively, and at least to control State the working condition of load mechanism, driving mechanism.
The device of secondary assessment material abrasion behavior 21. Wheel-type according to claim 20 rubs, it is characterised in that: described Central control system mechanism further includes velocity measurement mechanisms, and the velocity measurement mechanisms are at least to measure the sample wheel and/or turn to mill Speed.
The device of secondary assessment material abrasion behavior 22. Wheel-type according to claim 21 rubs, it is characterised in that: described Velocity measurement mechanisms include the counting mechanism to measure the sample wheel and/or the turnning circle to mill.
The device of secondary assessment material abrasion behavior 23. Wheel-type according to claim 22 rubs, it is characterised in that: described Counting mechanism includes electronic counter.