CN206399801U - A kind of laser bevel friction coefficient measuring instrument - Google Patents
A kind of laser bevel friction coefficient measuring instrument Download PDFInfo
- Publication number
- CN206399801U CN206399801U CN201621084205.3U CN201621084205U CN206399801U CN 206399801 U CN206399801 U CN 206399801U CN 201621084205 U CN201621084205 U CN 201621084205U CN 206399801 U CN206399801 U CN 206399801U
- Authority
- CN
- China
- Prior art keywords
- laser
- testing stand
- elevating mechanism
- support
- friction coefficient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a kind of laser bevel friction coefficient measuring instrument, including support, testing stand, elevating mechanism, generating laser and device for measuring length；Testing stand one end is hinged with support, the panel of the other end is object carrying area, object carrying area side is provided with displacement transducer, testing stand bottom surface is provided with speculum, and elevating mechanism is arranged on support, and elevating mechanism is connected with the non-articulated end of testing stand, generating laser is arranged on the support below testing stand, Laser emission direction horizontally toward testing stand hinged end is set, and device for measuring length is arranged on the support below generating laser, receives the laser beam reflected by speculum；Prior art is different from, the utility model has the following advantages that：The laser that generating laser is sent, by the reflection of speculum, is radiated on grating scale, is exaggerated the inclination angle of testing stand, and the tangent value of testing stand flip angle is calculated by the reading of the firing altitude and grating scale that measure laser beam, is required coefficient of friction.
Description
Technical field
The utility model is related to measuring instrument field, more particularly to a kind of laser bevel friction coefficient measuring instrument.
Background technology
Coefficient of friction is an important parameter in physics, and its measurement is particularly important to engineering machinery, its size
It can be influenceed by different environmental factor and experiment condition, and the laser coefficient of friction data between object correlation in the prior art
1 to 2 effective digitals are typically only, precision is not high, therefore measurement on the spot, easy need to be carried out for actual measuring environment.
The patent No.：201420766523.2 (denomination of invention：A kind of pallet confficient of static friction measurement apparatus, the applying date：
2014.12.08, date of publication：2015.3.18, publication number：CN204214763U a kind of pallet confficient of static friction measurement) is disclosed
Device, is pacified by test frame, mounting bracket, prong, motor, rope, Auxiliary support roller, guide roller, fixed installation bar, regulation
Fill bar and dynamometer is constituted, described rope is placed on Auxiliary support roller and guide roller, and one end of rope passes through motor
Drive connection, the other end of rope is connected with dynamometer.The device have save laborsaving people, convenient operation, guarantee test environment with
And the advantages of guarantee test data accuracy, but determine coefficient of friction by way of measuring horizontal friction force, it is impossible to it is accurate
Ground judges critical condition of the object in maximum static friction force situation.
The patent No.：201420184855.X (denomination of invention：Silicone pipes inwall friction coefficient measuring apparatus, the applying date：
2014.04.16, date of publication：2014.08.20, publication number：CN203786014U a kind of silicone pipes inwall coefficient of friction) is disclosed
Measurement apparatus, the flip angle of lower slideway is measured using the protractor on horizontal base；It is fixed on when survey mass is at the uniform velocity skidded off
During the inwall of the silicone pipes in silicone pipes fixing device, the tangent value of the measurement plate flip angle measured by protractor is silicon
Core pipe inwall coefficient of friction.But, protractor is measured using straight angle etc. point principle, and its scale division value is 1 °, measurement error
It is relatively large, the direct error of one decimal place can be caused after tangent value is asked for.
Utility model content
For this reason, it may be necessary to a kind of laser bevel friction coefficient measuring instrument be provided, to solve coefficient of friction data in the prior art
Only 1 to 2 effective digitals, the problem of precision is not high.
To achieve the above object, the technical scheme that the utility model is used for：
A kind of laser bevel friction coefficient measuring instrument, including support, testing stand, elevating mechanism, generating laser and length
Measuring appliance；
Described testing stand one end is hinged with support, and the panel of the other end is object carrying area, and the side of the object carrying area is provided with position
Displacement sensor, the bottom surface of the testing stand is provided with speculum；
The elevating mechanism is arranged on support, and elevating mechanism is connected with the non-articulated end of testing stand, and takes experiment to
Platform one end is moved up and down；
The generating laser is arranged on the support below testing stand, sets Laser emission direction horizontally toward testing stand
Hinged end；
The device for measuring length is arranged on the support below generating laser, by being received in device for measuring length by reflecting
The laser of mirror reflection.
Prior art is different from, above-mentioned technical proposal has the following advantages that：The laser that generating laser is sent, by reflection
The reflection of mirror, with the angular illumination of 2 times of inclined-plane flip angles on device for measuring length, is exaggerated the angle of testing stand rising, carries
The high precision of linear measure longimetry, when displacement transducer, which detects thing block, to glide, points out the upper of operating personnel's system for stopping elevators structure
Rise, the tangent value of testing stand flip angle is now calculated by meter, be required coefficient of friction.
Further, the device for measuring length can select grating scale, and described two sections of grating scale one end are connected with each other, and edge is hinged
Locate central plane symmetrical, one end of interconnection is set to zero point, when inclination angle of inclined plane is less than 45 °, laser beam is beaten in right side grating
On chi, when inclination angle of inclined plane is more than 45 °, laser beam is beaten on the grating scale of left side.
Grating scale is divided into the friction co-efficient value in the range of two sections of left and right, measurable 0 to 90 degree by correspondence different situations.
Further, the device for measuring length can select guide rail and laser inductor, and the device for measuring length selects guide rail
With laser inductor, the guide rail is arranged on support, and the laser inductor is arranged on guide rail, when the reflected mirror of laser beam
After reflection, laser inductor receives laser, and position is length information.
By the setting of slide rail and laser inductor, the friction co-efficient value in the range of measurable 0 to 90 degree.
Further, the elevating mechanism is screw lift, and the screw lift passes through elevating screw supporting oblique surface
Slide rail.
By setting screw lift, screw mandrel carries out spiral escalation, and precision and the speed of elevating mechanism are able to further
Lifting.
Further, in addition to the padded coaming between elevating mechanism support.
By setting the padded coaming between support and elevating mechanism so that vibrations when screw lift works are hindered
Every preventing from being similarly disposed at the generating laser on support and the phenomenon offset occur because laser beam occur in vibrations, improve measurement
Precision.
Further, the fixture of testing stand non-articulated end setting is included.
By the setting of fixture, the material contacted on replaceable testing stand with thing block so that the material selection of object under test
It is more various.
Further, in addition to control module, the control module is passed with elevating mechanism, generating laser, displacement respectively
Sensor and grating scale electrical connection.
By setting control module, the movement of displacement transducer monitoring thing block, the uphill process and grating scale of elevating mechanism
The display of reading is automated, lowering apparatus operation difficulty, improves the precision of measurement process.
Brief description of the drawings
Fig. 1 is the structural representation of the laser bevel friction coefficient measuring instrument of the utility model embodiment one；
Fig. 2 analyzes schematic diagram for the calculating in the utility model embodiment when testing stand inclination angle when 0 to 45 spend；
Fig. 3 analyzes schematic diagram for the calculating in the utility model embodiment when testing stand inclination angle when 45 to 90 spend；
Fig. 4 is the structural representation of the laser bevel friction coefficient measuring instrument of the utility model embodiment two；
Fig. 5 analyzes schematic diagram for the calculating in the embodiment of the present invention two when testing stand inclination angle when 0 to 45 spend.
Description of reference numerals：
101st, support；
201st, testing stand；202nd, fixture；203rd, speculum；204th, displacement transducer；
301st, elevating mechanism；
401st, generating laser；402nd, laser beam；
501st, device for measuring length；
601st, buffer unit；
701st, controller；
801st, hinge.
Embodiment
To describe technology contents of the present utility model, construction feature, the objects and the effects in detail, below in conjunction with implementation
Mode simultaneously coordinates accompanying drawing to be explained in detail.
Embodiment one,
Also referring to Fig. 1, Fig. 2 and Fig. 3, as shown in figure 1, Fig. 1 measures for the utility model laser bevel friction coefficient
The structural representation of instrument, support 101 includes bottom plate, the first pillar, the second pillar, the 3rd pillar, the 4th pillar and cross bar, first
Pillar and the second pillar are arranged on two angles of bottom plate one end, and the 3rd pillar and the 4th pillar are arranged on the two of the bottom plate other end
On individual angle, cross bar two ends connect the 3rd pillar and the 4th pillar respectively, and the one end of testing stand 201 is cut with scissors with the first pillar and the second pillar
Connect, the panel of the other end is that determinand block is set on object carrying area, object carrying area, the side of object carrying area is provided with displacement transducer 204, examination
The bottom of platform 201 is tested provided with speculum 203, (laser beam of generating laser is arranged in the present embodiment from circular speculum
In light path, generating laser can also be caused from the speculum for covering testing stand bottom, covering testing stand bottom hair speculum
The laser beam reflected range increase sent), the other end end of testing stand 201 is provided with fixture 202, and fixture 202 clamps difference
The frictional force of material surveys piece, and elevating mechanism 301 is arranged on the lower section of cross bar 107, sets slow between cross bar 107 and elevating mechanism 301
Flushing device 601, (buffer unit selects plastic foam in the present embodiment, can also be filled from materials such as rubber, plastics as buffering
Put) elevating mechanism 301 is described from screw lift (also can select screw lift or hand hoist) in the present embodiment
The screw mandrel of screw lift supports the non-articulated end of testing stand 201, and drives it to move up and down, and generating laser 401 is arranged on
On cross bar 107, Laser emission the direction horizontally toward hinged end of testing stand 201, the laser beam 402 that generating laser 401 is launched
Reflected mirror 203, which is reflexed to, to be arranged on the device for measuring length 501 of the lower section of generating laser 401, and device for measuring length 501 is arranged on
On bottom plate 102, controller 701 is electrically connected with displacement transducer 204, receives the electric signal of displacement transducer 204, controller 701
Electrically connected by motor driver with elevating mechanism 301, driving elevating mechanism 301 works, controller 701 and generating laser
401 and device for measuring length 501 electrically connect, the transmitting laser beam of transmitting telecommunication triggering generating laser 401 simultaneously receives linear measure longimetry
The numerical information of device 501 (controller 701 in the present embodiment selects single-chip microcomputer).
According to said structure, in concrete operations, friction plate is arranged on object carrying area, and is clamped by fixture 202, and thing block is put
Put on object carrying area, contacted with friction plate, controller 701 sends signal control screw lift and risen, and motoring ring test platform 201
Non-articulated end move up, when displacement transducer 204, which detects thing block, to be moved down, the signal of displacement transducer 204 is sent back
Controller 701, controller 701 sends the rising of signal system for stopping elevators structure 301, and sends signal triggering generating laser 401
Launch laser beam 402, laser beam 402 is reflected and fallen on grating scale by speculum 203, and the numerical value of grating scale sends back monolithic
(another embodiment of the present embodiment is that the device for measuring length selects guide rail and laser inductor, the laser on machine
Inductor is moved on guide rail, and when detecting laser drop point, length information is passed back on single-chip microcomputer).
When testing stand inclination angle is less than 45 degree, as shown in Fig. 2 laser beam passes through reflected illumination in the first pillar and second
On device for measuring length on the right side of post, now, height H of the default laser beam relative to bottom plate and the right side that collects in single-chip microcomputer
The reading L of side grating scale calculates tan2 θ numerical value to be previously written formula tan2 θ=H/L of single-chip microcomputer, passes through write-in afterwards
Another formula of single-chip microcomputerCalculate the numerical value of frictional force.
When testing stand inclination angle is more than 45 degree, as shown in figure 3, laser beam is left in first, second pillar by reflected illumination
On the device for measuring length of side, now, height H in single-chip microcomputer between default laser beam and bottom plate and the left side light collected
Grid chi reading L, in single-chip microcomputer default formula tan (180 ° of -2 θ)=H/L andMeter
Calculate the numerical value of frictional force.
In certain embodiments, single-chip microcomputer can be only used for gathering measurement data, and data are connected by serial ports by single-chip microcomputer and counted
The modes such as calculation machine enter row written calculation after exporting by operating personnel.
According to said structure as can be seen that the utility model is when displacement transducer monitors thing block slide downward, lifting
Mechanism stops rising, and laser transmitter projects laser beam, laser beam passes through the reflection of speculum, with 2 times of inclined-plane flip angles
Angular illumination is exaggerated the angle of testing stand rising, adds laser inductor from grating scale or guide rail on device for measuring length
Mechanism improves the precision of measurement；The tangent value of testing stand flip angle is calculated by the reading of firing altitude and device for measuring length
(tan) it is, required coefficient of friction, it is more accurate relative to the manual numerical value using protractor and ruler measurement；Work as displacement
Signal is sent to control module when sensor detects the downslide of thing block, control module sends signal to elevating mechanism and stopped thereon
Rise, and trigger laser transmitter projects laser beam, the reflected mirror of laser beam reflects and is radiated on device for measuring length, length is surveyed
The numerical value of measuring device passes control module back, and calculates frictional force by formula, passes through the utilization of control module so that manual operation instrument
The error that device is caused is eliminated, and adds the measurement accuracy of frictional force.
Embodiment two,
Also referring to Fig. 4 and Fig. 5, Fig. 4 is the structural representation of laser bevel friction coefficient measuring instrument of the present invention, support
101 include bottom plate, the first pillar, the second pillar, the 3rd pillar, the 4th pillar and cross bar, on support 101, the first pillar and
Second pillar is arranged on two angles of bottom plate one end, and the 3rd pillar and the 4th pillar are arranged on two angles of the bottom plate other end
On, cross bar two ends connect the 3rd pillar and the 4th pillar respectively, and the end face of the one end of testing stand 201 is distinguished by two hinges 801
The first pillar and the second pillar are connected, the panel of the other end is that determinand block, the side of object carrying area are set on object carrying area, object carrying area
Provided with displacement transducer 204, (displacement transducer selects optical displacement sensor in the present embodiment, also can select Hall formula displacement
Sensor), it is different from anti-in the set-up mode that speculum 203 in embodiment one is arranged on the bottom surface of testing stand 201, the present embodiment
Mirror 203 is penetrated by one end end face of fixedly connected part joint test platform 201, speculum 203 is set relative to the angle of testing stand 201
For 22.5 °, on the direction that the angle direction of speculum 203 turns clockwise along tie point for testing stand 201, elevating mechanism 301
It is arranged on below cross bar, elevating mechanism 301 (also can select screw elevator or hand-rail type from screw lift in the present embodiment
Lift), the screw mandrel of the screw lift supports the non-articulated end of testing stand 201, and drives it to move up and down, Laser emission
Device 401 is arranged on cross bar, Laser emission direction horizontally toward speculum 203, the laser beam that generating laser 401 is launched
402 reflected mirrors 203, which are reflexed to, to be arranged on the device for measuring length 501 of the lower section of generating laser 401, and device for measuring length 501 is pacified
On bottom plate (device for measuring length selects grating scale in the present embodiment), controller 701 is electrically connected with displacement transducer 204, is connect
By the electric signal of displacement transducer 204, controller 701 is electrically connected by motor driver with elevating mechanism 301, driving lifting
Mechanism 301 is worked, and controller 701 is electrically connected with generating laser 401 and device for measuring length 501, transmitting telecommunication number triggering laser
Transmitter 401 launches laser beam and receives numerical information (the selection list of controller 701 in the present embodiment of device for measuring length 501
Piece machine).
According to said structure, in concrete operations, thing block is placed on object carrying area, and controller 701 sends signal control silk
Bar lift rises, and the front of motor of motoring ring test platform 201 is moved up, and is moved down when displacement transducer 204 detects thing block
When, the signal of displacement transducer 204 sends back controller 701, and controller 701 sends the rising that signal stops screw lift,
And the signal triggering transmitting laser beam 402 of generating laser 401 is sent, laser beam 402 is reflected and fallen in grating by speculum 203
On chi, the numerical value of grating scale is sent back on single-chip microcomputer.
When testing stand inclination angle is less than 45 degree, as shown in figure 5, height of the default laser beam relative to bottom plate in single-chip microcomputer
Degree H is calculated with the numerical value L of the laser beam drop point collected with formula tan (45 ° of+2 θ)=H/L being previously written in single-chip microcomputer
Tan2 θ numerical value, and judge numerical value L and H numerical values recited, as L ＞ H, by the formula for being previously written single-chip microcomputerThe numerical value of frictional force is drawn, as L ＜ H, by being previously written monolithic
The formula of machineDraw the numerical value of frictional force.
In certain embodiments, single-chip microcomputer can be only used for gathering measurement data, and data are connected by serial ports by single-chip microcomputer and counted
The modes such as calculation machine enter row written calculation after exporting by operating personnel.
According to said structure as can be seen that the present invention is when displacement transducer monitors thing block slide downward, elevating mechanism
Stop rising, laser transmitter projects laser beam, laser beam passes through the reflection of speculum, with 2 times of speculums and horizontal plane
Angle angular illumination is exaggerated the angle of testing stand rising on grating scale, and grating scale improves the precision of measurement；By swashing
The reading of light firing altitude and grating scale calculates the tangent value (tan) of testing stand flip angle, is required coefficient of friction, phase
It is more accurate for the numerical value manually using protractor and ruler measurement；When displacement transducer is detected when thing block glides to control
Device sends signal, and controller sends signal to elevating mechanism and stops its rising, and triggers laser transmitter projects laser beam, swashs
The reflected mirror of light beam reflects and is radiated on grating scale, and grating scale shows reading, and calculates frictional force by formula, passes through control
The utilization of device so that the error that manual operation instrument is caused is eliminated, adds the measurement accuracy of frictional force.
Embodiment of the present utility model is the foregoing is only, scope of patent protection of the present utility model is not thereby limited,
The equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are made, or directly or indirectly it is used in other phases
The technical field of pass, is similarly included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of laser bevel friction coefficient measuring instrument, including support, testing stand, elevating mechanism, generating laser and length are surveyed
Measuring device；
Described testing stand one end is hinged with support, and the panel of the other end is object carrying area, and the side of the object carrying area is passed provided with displacement
Sensor, the bottom surface of the testing stand is provided with speculum；
The elevating mechanism is arranged on support, and elevating mechanism is connected with the non-articulated end of testing stand, and takes testing stand one to
End is moved up and down；
The generating laser is arranged on the support below testing stand, and setting Laser emission direction, horizontally toward testing stand is hinged
End；
The device for measuring length is arranged on the support below generating laser, by receiving anti-by speculum in device for measuring length
The laser penetrated.
2. laser bevel friction coefficient measuring instrument according to claim 1, the device for measuring length selects grating scale, described
Grating scale is two sections, and described two sections of grating scale one end are connected with each other, and symmetrical along hinged place central plane, one end of interconnection is set
For zero point.
3. laser bevel friction coefficient measuring instrument according to claim 1, the device for measuring length selects guide rail and laser
Inductor, the guide rail is arranged on support, and the laser inductor is arranged on guide rail.
4. laser bevel friction coefficient measuring instrument according to claim 1, the elevating mechanism is screw lift, described
Screw lift passes through elevating screw supporting oblique surface slide rail.
5. provided with buffering between laser bevel friction coefficient measuring instrument according to claim 1, the elevating mechanism support
Material.
6. laser bevel friction coefficient measuring instrument according to claim 1, the non-articulated end of the testing stand is provided with folder
Tool.
7. laser bevel friction coefficient measuring instrument according to claim 1, in addition to control module, the control module point
Do not electrically connected with elevating mechanism, generating laser, displacement transducer and device for measuring length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621084205.3U CN206399801U (en) | 2016-09-27 | 2016-09-27 | A kind of laser bevel friction coefficient measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621084205.3U CN206399801U (en) | 2016-09-27 | 2016-09-27 | A kind of laser bevel friction coefficient measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206399801U true CN206399801U (en) | 2017-08-11 |
Family
ID=59506800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621084205.3U Expired - Fee Related CN206399801U (en) | 2016-09-27 | 2016-09-27 | A kind of laser bevel friction coefficient measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206399801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976269A (en) * | 2017-11-20 | 2018-05-01 | 河南工程学院 | Hair products compliance tester |
-
2016
- 2016-09-27 CN CN201621084205.3U patent/CN206399801U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107976269A (en) * | 2017-11-20 | 2018-05-01 | 河南工程学院 | Hair products compliance tester |
| CN107976269B (en) * | 2017-11-20 | 2023-09-22 | 河南工程学院 | Flexibility tester for hair products |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108827193B (en) | Detection device for accurately detecting flatness of template | |
| CN106353250B (en) | A kind of laser bevel friction coefficient measuring instrument | |
| CN102607503A (en) | Tilt sensor based straightness measuring instrument and method | |
| CN106052654B (en) | A kind of automatic centering total powerstation base unit | |
| KR101706209B1 (en) | Leveling equipment for improving accuracy | |
| CN208936981U (en) | A kind of skylight rail flatness detection instrument | |
| CN111735636A (en) | Dummy positioning device and dummy positioning method for automobile crash test | |
| CN206399801U (en) | A kind of laser bevel friction coefficient measuring instrument | |
| CN216694851U (en) | Bridge cantilever construction is with hanging vertical deformation real-time supervision device of basket | |
| CN107389048A (en) | Construction wall measuring for verticality method | |
| CN107702767B (en) | Based on the liquid level alarming switch detection method of static liquid level and its scaling method of alarming line | |
| KR102241488B1 (en) | Safety diagnosis device for checking the crack length of structure | |
| CN208383116U (en) | A kind of end difference machine measuring flatness | |
| CN219103960U (en) | Wall body roughness and straightness detection device that hangs down | |
| CN205561773U (en) | Measuring device is warp to dam level based on grating chi | |
| CN209485698U (en) | Dummy's positioning device for vehicle impact testing | |
| RU2690701C2 (en) | Metrological bench for verification, calibration of level gauges and level indicators | |
| CN217786167U (en) | Device for measuring building inclination rate | |
| CN217818545U (en) | Building curtain wall flatness detection device | |
| CN108827223A (en) | A kind of end difference machine measuring flatness | |
| RU197046U1 (en) | DEVICE FOR TESTING AND CALIBRATING LEVEL MEASUREMENT DEVICES | |
| CN114045754A (en) | Method for monitoring vertical displacement of gravity center of hanging basket for bridge cantilever construction in real time | |
| CN106441055A (en) | Position detecting device | |
| CN110500936A (en) | A kind of size detecting device and its detection method | |
| CN209181739U (en) | A kind of flatness detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20210927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |