CN206710280U - A kind of device of test pavement coefficient of friction - Google Patents
A kind of device of test pavement coefficient of friction Download PDFInfo
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- CN206710280U CN206710280U CN201720469528.2U CN201720469528U CN206710280U CN 206710280 U CN206710280 U CN 206710280U CN 201720469528 U CN201720469528 U CN 201720469528U CN 206710280 U CN206710280 U CN 206710280U
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- upper strata
- support frame
- dial
- wobble component
- support base
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Abstract
The utility model provides a kind of device of test pavement coefficient of friction, including：Support frame, it is used to stand on ground；Dial, it is fixedly installed on the side at the top of support frame, and dial passes through the rotary shaft having directly over support frame；Wobble component, wobble component are rotationally connected with rotary shaft by swivel becket；Limit turns component, and it includes limiting rotaring cylinder, drives cylinder and limit rotating disk；Testing agency, it includes Hall sensor and permanent magnet, permanent magnet is arranged at the junction of wobble component and swivel becket, Hall sensor is arranged on dial, Hall sensor is located on the position of nonrotational axis center, to detect side peak where whether wobble component reaches the dial of support frame；Control circuit, limits rotaring cylinder and Hall sensor is connected with control circuit.The device of the test pavement coefficient of friction solve the problems, such as because ratchet holdback in wobble component rotation process will and wobble component contact cause measurement result deviation.
Description
Technical field
It the utility model is related to the detection device of road surface coefficient of friction, and in particular to a kind of test pavement coefficient of friction
Device.
Background technology
Chinese patent discloses the pendulum friction coefficient determinator that a kind of notification number is the U of CN 205580964, the analyzer
Include the base being supported on runway, the dial being installed on the base, the swing group being connected with the base rotation
Part and the pointer of wobble component linkage, the wobble component drive the pointer to do same angle swinging, the dial
The adjusting apparatus for adjusting angle between dial and vertical direction, the axis of rotation of the pointer are provided between base
On be provided with non-return device.Although the analyzer, which realizes, limits the revolution after wobble component is swung, existing for analyzer
Shortcoming is：
It is ratchet holdback that this application discloses non-return device in specification, the ratchet check in wobble component rotary course
Device can all contact with wobble component, and elastic deformation can occur because of the rotation of wobble component for ratchet holdback, and wobble component
The elastic deformation for driving ratchet holdback to occur can consume the kinetic energy of wobble component, it is well known that pendulum friction coefficient determinator
Measuring principle be " gravitional force of wobble component initial position be equal to wobble component and road surface contact after reach lofty perch when weight
Power potential energy contacts the energy consumed by friction plus wobble component with road surface ", and the elastic deformation meeting that ratchet holdback occurs
Consumed energy so that measuring principle of pendulum friction coefficient determinator itself is not being set up, and the pendulum friction coefficient determinator
Kind propose in result, the power consumption brought by ratchet holdback is made up by result, but the power consumption that ratchet holdback is brought
It is difficult to determine, therefore the pendulum friction coefficient determinator determines obtained coefficient of friction and actual value deviation greatly, even occur
The probability of measurement result mistake is present.
Utility model content
The utility model provides a kind of device of test pavement coefficient of friction, solves because ratchet holdback is in wobble component
In rotation process will and wobble component contact and the problem of cause measurement result deviation.
To achieve the above object, the utility model employs following technical scheme：
A kind of device of test pavement coefficient of friction, including：Support frame, it is used to stand on ground；Dial, it is fixed
The side being arranged at the top of support frame, dial pass through the rotary shaft having directly over support frame, and rotary shaft is consolidated with support frame
It is fixed；Wobble component, its top are connected with swivel becket, and wobble component is rotationally connected with rotary shaft by swivel becket；Limit turns component,
It includes limiting rotaring cylinder, drives cylinder and limit rotating disk, driving chamber is offered on dial and support frame, driving chamber is surround
Outside rotary shaft, limit rotating disk and drive cylinder to be respectively positioned in driving chamber, limit rotating disk is located at driving chamber and close to end and surrounded
Outside rotary shaft, the openend and limit rotating disk that drive cylinder are fixed, and drive the bottom of cylinder and limit rotaring cylinder stretches to driving chamber
Interior end is fixed, and limit rotaring cylinder is arranged on support frame, and swivel becket, which offers inner wall belt, the positioning hole of groove, turns gas in limit
Under the driving of cylinder limit rotating disk can stretch in positioning hole and engaged with positioning hole inwall groove；Testing agency, it is included suddenly
That sensor and permanent magnet, permanent magnet are arranged at the junction of wobble component and swivel becket, and Hall sensor is arranged at scale
On disk, Hall sensor is located on the position of nonrotational axis center, to detect the dial whether wobble component reaches support frame
Place side peak；Control circuit, limits rotaring cylinder and Hall sensor is connected with control circuit.
Preferably, support frame includes：Lower layer support seat, it is used to stand on ground；Upper strata support base, it is arranged at down
Above layer support base, upper strata support base is equilateral triangle structure；Two rotating bars, two rotating bar one end are consolidated with lower layer support seat
It is fixed, the two base angles rotation connection of two rotating bar other ends difference upper strata support base；Adjusting part, it arrives upper strata support base summit
Lower layer support seat top surface connects, to adjust upper strata support base summit the distance between to lower layer support seat top surface；Calibration assemblies, its
Be arranged on the support base of upper strata, with the incline direction in assisted calibration face to be detected whether the base vertical with upper strata support base；With
And support bar, its bottom are fixed with upper strata support base center, its top is used to connect dial；
Preferably, adjusting part includes：Mounting seat, it is arranged on the bottom surface of lower layer support seat；Clamping plate, it is sector
Shape, the through hole of one of arc is being provided with close to clamping plate sector edge, the through hole and clamping plate are concentric, and through hole, which passes through, to be had
The screw of mounting seat threaded connection, the fan-shaped edge of clamping plate is connected with mounting seat；Link, it stands on lower layer support seat
On, top and the clamping plate angle end of link are rotatablely connected；Cantilever beam, it is fixed on link and with being put down where lower layer support seat
Face is parallel；Regulating bolt, it is threadedly coupled on a cantilever beam, and regulating bolt extends to clamping plate, and turn regulating bolt can make clamping plate
Rotated relative to link.
Preferably, adjusting part also includes：Cylindrical spring, cylindrical spring one end and Boards wall, cylindrical spring are another
End is fixed with cantilever beam.
Preferably, regulating bolt is contacted by contacting ball with clamping plate.
Preferably, calibration assemblies include：Shadow bar, it is fixed on the support base of upper strata and hung down with upper strata support base base
Directly；And projection lamp tube, it is fixed on the support base of upper strata, and projection lamp tube is located above shadow bar and parallel with shadow bar.
Compared to prior art, the utility model has the advantages that：
1) by setting testing agency, the detection to wobble component rotational angle is realized, and testing result is higher, and
Detection efficiency is also high；
2) by setting limit to turn component, realize after detecting that wobble component swings to peak immediately by wobble component
Positioning, and then realize that to turn component in the wobble component time limit contactless with wobble component, avoid and rubbed and caused detection knot
The problem of fruit deviation, improve accuracy of detection so that testing result is relatively reliable, and limit turns in component using limit rotaring cylinder, limit
The reaction of rotaring cylinder is more sensitive, and stopping at lofty perch for wobble component lays a good foundation.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of test pavement coefficient of friction；
Fig. 2 is wobble component and the A-A sectional views of support frame junction in Fig. 1；
Fig. 3 is the top view of Fig. 1 support bases at the middle and upper levels；
Fig. 4 is the enlarged drawing at adjusting part in Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, the utility model proposes a kind of device of test pavement coefficient of friction, including：Support
Frame 1, it is used to stand on ground；Dial 2, it is fixedly installed on the side at the top of support frame 1, and dial 2, which passes through to have, to be located at
Rotary shaft 21 directly over support frame 1, rotary shaft 21 are fixed with support frame 1；Wobble component 3, its top are connected with swivel becket 31,
Wobble component 3 is rotationally connected with rotary shaft 21 by swivel becket 31；Limit turns component 4, and it includes limiting rotaring cylinder 41, drives cylinder 42
And limit rotating disk 43, driving chamber 22 is offered on dial 2 and support frame 1, driving chamber 22 is looped around outside rotary shaft 21,
Limit rotating disk 43 and drive cylinder 42 are respectively positioned in driving chamber 22, and limit rotating disk 43 is located at driving chamber 22 and close to end and is centered around
Outside rotary shaft 21, the openend and limit rotating disk 43 that drive cylinder 42 are fixed, and drive the bottom of cylinder 42 and stretching into for limit rotaring cylinder 41
End in driving chamber 22 is fixed, and limit rotaring cylinder 41 is arranged on support frame 1, and swivel becket 31, which offers inner wall belt, groove
Positioning hole, under the driving of limit rotaring cylinder 41 limit rotating disk 43 can be made to stretch in positioning hole and be nibbled with positioning hole inwall groove
Close；Testing agency, it includes Hall sensor 51 and permanent magnet 52, and permanent magnet 52 is arranged at wobble component 3 and swivel becket 31
Junction, Hall sensor 51 is arranged on dial 2, and Hall sensor 51 is located on the position at the nonrotational center of axle 21,
To detect the place side peak of dial 2 whether wobble component 3 reaches support frame 1；Control circuit (not shown), limit turn gas
Cylinder 41 and Hall sensor 51 are connected with control circuit.During work, the opposite side at the top of support frame 1 is provided with cantilever arrangement
6, first, wobble component 3 discharges from cantilever arrangement 6, and Hall sensor 51 detects the rotational angle of wobble component 3 in real time, when
When Hall sensor 51 detects that wobble component 3 swings to the lofty perch of dial 2, control circuit control limit rotaring cylinder 41 is stretched
Go out so that limit rotating disk 43 engages with positioning hole inwall groove, realizes that limitation rotates, avoids because of wobble component 3 and geodetic to be checked
Face contacts and causes wobble component 3 to damage comparatively fast again.
As shown in Figure 1 and Figure 3, in order to solve because prior art is located at water by three screw rods to adjust upper strata support base
The problem of causing regulation difficult in plane, support frame 1 includes：Lower layer support seat 11, it is used to stand on ground；Upper strata supports
Seat 12, it is arranged at the top of lower layer support seat 11, and upper strata support base 12 is equilateral triangle structure；Two rotating bars 13, two rotate
The one end of bar 13 is fixed with lower layer support seat 11, and two base angles of the other end of two rotating bar 13 difference upper strata support base 12, which rotate, to be connected
Connect；Adjusting part 14, the summit of upper strata support base 12 to the top surface of lower layer support seat 11 is connected, pushed up with adjusting upper strata support base 12 by it
Point arrives the distance between top surface of lower layer support seat 11；Calibration assemblies 15, it is arranged on upper strata support base 12, treated with assisted calibration
The incline direction of detection faces whether the base vertical with upper strata support base 12；And support bar 16, its bottom and upper strata support base
12 centers are fixed, and its top is used to connect dial 2.By setting calibration assemblies 15, realize is made by adjusting riding position
Upper strata support base 12 base it is vertical with the incline direction in face to be detected, and then only regulation upper strata support base 12 summit height
Low can regulation upper strata support base 12 is located on horizontal plane, simplifies adjustment work, is brought conveniently to installation.
As shown in Fig. 1 and Fig. 4, adjusting part 14 includes：Mounting seat 141, it is arranged at the bottom surface of lower layer support seat 11
On；Clamping plate 142, it is fan shape, and the through hole 146 of one of arc is being provided with close to 142 fan-shaped edge of clamping plate, described to run through
Hole 146 and clamping plate 142 are concentric, and through hole 146 passes through the screw 147 for having mounting seat 141 to be threadedly coupled, by the fan of clamping plate 142
Shape edge is connected with mounting seat 141；Link 143, it is stood on lower layer support seat 11, top and the clamping plate 142 of link 143
Angle end is rotatablely connected；Cantilever beam 144, it is fixed on link 143 and parallel with the place plane of lower layer support seat 11；Adjust spiral shell
Bolt 145, it is threaded on cantilever beam 144, and regulating bolt 145 extends to clamping plate 142, and turn regulating bolt 145 can make folder
Plate 142 rotates relative to link 143.During regulation, first, screw 147 is outwarded winding so that clamping plate 142 can be mounted opposite 141 turns of seat
It is dynamic；Then, regulating bolt 145 is rotated so that clamping plate 142 rotates, and realizes the high high adjustment on the summit of upper strata support base 12, when
The right upper strata support base 12 is provided with spirit level, is adjusted according to spirit level during the high high adjustment on the summit of upper strata support base 12
Section, to ensure that upper strata support base 12 is in the horizontal plane after adjusting.
As shown in Fig. 1 and Fig. 4, cause clamping plate 142 because upper strata support base 12 is overweight after being unclamped in order to avoid screw 147
Move down suddenly, increase adjustable range, adjusting part 14 also includes：Cylindrical spring 148, the one end of cylindrical spring 148 are solid with clamping plate 142
Fixed, the other end of cylindrical spring 148 is fixed with cantilever beam 144.Cylindrical spring 148 forms the buffering to upper strata support base 12, limitation
The too fast of upper strata support base 12 moves down.
As shown in Fig. 1 and Fig. 4, in order to reduce the frictional force between the clamping plate 142 of regulating bolt 145, regulating bolt 145 is logical
Contact ball 149 is crossed to contact with clamping plate 142.Realize contact of the point with face, and then rubbing between the reduction clamping plate 142 of regulating bolt 145
Wipe power.
As shown in Figure 1 and Figure 3, calibration assemblies 15 include：Shadow bar 151, its be fixed on upper strata support base 12 and with
The base vertical of upper strata support base 12；And projection lamp tube 152, it is fixed on upper strata support base 12, and projection lamp tube 152 is positioned at throwing
It is above shadow bar 151 and parallel with shadow bar 151.During calibration, first, drawn on ground to be detected and ground inclination side to be detected
To parallel line；Then, projection lamp tube 152 is opened, projection lamp tube 152 sends radiance, and the shadow of shadow bar 151, which is projected in, to be treated
Detect on ground, mobile tester so that the shadow of shadow bar 151 overlaps with the line finished, that is, realizes upper strata support base 12
Base it is vertical with the incline direction in face to be detected.
Finally illustrate, above example is only unrestricted to illustrate the technical solution of the utility model, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent substitution, without departing from the objective and model of technical solutions of the utility model
Enclose, it all should cover among right of the present utility model.
Claims (6)
- A kind of 1. device of test pavement coefficient of friction, it is characterised in that including：Support frame, it is used to stand on ground；Dial, it is fixedly installed on the side at the top of support frame, and dial passes through the rotary shaft having directly over support frame, Rotary shaft is fixed with support frame；Wobble component, its top are connected with swivel becket, and wobble component is rotationally connected with rotary shaft by swivel becket；Limit turns component, and it includes limiting rotaring cylinder, drives cylinder and limit rotating disk, and driving is offered on dial and support frame Chamber, driving chamber are looped around outside rotary shaft, are limited rotating disk and are driven cylinder to be respectively positioned in driving chamber, and limit rotating disk is leaned on positioned at driving chamber Close end and it is centered around outside rotary shaft, the openend and limit rotating disk for driving cylinder are fixed, and drive bottom and the limit rotaring cylinder of cylinder The end stretched in driving chamber is fixed, and limit rotaring cylinder is arranged on support frame, and swivel becket, which offers inner wall belt, determining for groove Position hole, can make limit rotating disk stretch in positioning hole and be engaged with positioning hole inwall groove under the driving of limit rotaring cylinder；Testing agency, it includes Hall sensor and permanent magnet, and permanent magnet is arranged at the junction of wobble component and swivel becket, Hall sensor is arranged on dial, and Hall sensor is located on the position of nonrotational axis center, is to detect wobble component Side peak where the no dial for reaching support frame；Control circuit, limits rotaring cylinder and Hall sensor is connected with control circuit.
- 2. the device of test pavement coefficient of friction according to claim 1, it is characterised in that support frame includes：Lower layer support seat, it is used to stand on ground；Upper strata support base, it is arranged above lower layer support seat, and upper strata support base is equilateral triangle structure；Two rotating bars, two rotating bar one end are fixed with lower layer support seat, and the two of two rotating bar other ends difference upper strata support base Base angle is rotatablely connected；Adjusting part, upper strata support base summit to lower layer support seat top surface is connected, arrived down with adjusting upper strata support base summit by it The distance between layer support base top surface；Whether calibration assemblies, it is arranged on the support base of upper strata, supported with the incline direction in assisted calibration face to be detected with upper strata The base vertical of seat；AndSupport bar, its bottom are fixed with upper strata support base center, and its top is used to connect dial.
- 3. the device of test pavement coefficient of friction according to claim 2, it is characterised in that adjusting part includes：Mounting seat, it is arranged on the bottom surface of lower layer support seat；Clamping plate, it is fan shape, and the through hole of one of arc, the through hole and clamping plate are being provided with close to clamping plate sector edge With one heart, through hole passes through the screw for having mounting seat to be threadedly coupled, and the fan-shaped edge of clamping plate is connected with mounting seat；Link, it is stood on lower layer support seat, and top and the clamping plate angle end of link are rotatablely connected；Cantilever beam, its be fixed on link and with lower layer support seat where plane it is parallel；Regulating bolt, it is threadedly coupled on a cantilever beam, and regulating bolt extends to clamping plate, and turn regulating bolt can make clamping plate relative Link rotates.
- 4. the device of test pavement coefficient of friction according to claim 3, it is characterised in that adjusting part also includes：Circle Post spring, cylindrical spring one end and Boards wall, the cylindrical spring other end are fixed with cantilever beam.
- 5. the device of test pavement coefficient of friction according to claim 4, it is characterised in that regulating bolt is by contacting ball Contacted with clamping plate.
- 6. the device of test pavement coefficient of friction according to claim 2, it is characterised in that calibration assemblies include：Shadow bar, its be fixed on the support base of upper strata and with upper strata support base base vertical；AndProjection lamp tube, it is fixed on the support base of upper strata, and projection lamp tube is located above shadow bar and parallel with shadow bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469528.2U CN206710280U (en) | 2017-04-28 | 2017-04-28 | A kind of device of test pavement coefficient of friction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469528.2U CN206710280U (en) | 2017-04-28 | 2017-04-28 | A kind of device of test pavement coefficient of friction |
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| Publication Number | Publication Date |
|---|---|
| CN206710280U true CN206710280U (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720469528.2U Active CN206710280U (en) | 2017-04-28 | 2017-04-28 | A kind of device of test pavement coefficient of friction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632629A (en) * | 2019-01-22 | 2019-04-16 | 重庆邮电大学 | Controllable coefficient of rolling friction detection device and detection method based on magnetosensitive rubber |
-
2017
- 2017-04-28 CN CN201720469528.2U patent/CN206710280U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632629A (en) * | 2019-01-22 | 2019-04-16 | 重庆邮电大学 | Controllable coefficient of rolling friction detection device and detection method based on magnetosensitive rubber |
| CN109632629B (en) * | 2019-01-22 | 2021-08-13 | 重庆邮电大学 | Controllable rolling friction coefficient detection device and detection method based on magnetic-sensitive rubber |
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