CN208366814U - A kind of surface friction coefficient detection device - Google Patents
A kind of surface friction coefficient detection device Download PDFInfo
- Publication number
- CN208366814U CN208366814U CN201821094948.8U CN201821094948U CN208366814U CN 208366814 U CN208366814 U CN 208366814U CN 201821094948 U CN201821094948 U CN 201821094948U CN 208366814 U CN208366814 U CN 208366814U
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- China
- Prior art keywords
- pedestal
- friction coefficient
- testing jig
- rope
- detection device
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Abstract
The utility model discloses a kind of surface friction coefficient detection devices, the middle of the base is equipped with sliding slot, test block is slidably connected in the sliding slot, right side is equipped with testing jig in sliding slot, testing jig is connect with base rotation, the pedestal upper end is equipped with limited block, the testing jig is equipped with pulley blocks, the pulley blocks are equipped with rope, described rope one end is connect with test block, tension sensor is equipped between the rope and test block, the rope other end is removably connected with counterweight, the beneficial effects of the utility model are: the utility model passes through rope and pulley blocks using the gravity of counterweight as power transmission to measuring block, then the static friction and dynamic friction coefficient on road surface are measured by the motion transform process of measuring block, the weight of change counterweight can also be passed through simultaneously, to change the movement velocity of measuring block, it thus can be with analogue measurement The coefficient of friction of tire and road surface under different speeds.
Description
Technical field
The utility model relates to engineering detecting equipment technical field, specifically a kind of surface friction coefficient detection device.
Background technique
In highway engineering in China communication, it is a key factor for causing traffic accident that pavement behavior, which degenerates,.?
It is principal element that surface friction coefficient, which changes, in these factors, it has not only seriously affected the quality on road surface itself, also shadow
The service performance for having rung road surface brings huge hidden danger to driving is comfortable and safe.One side surface friction coefficient changes, vehicle
Road surface junction is being run over, is making to drive a vehicle to exacerbate jolting for driving due to having lacked the gather materials buffering of corner angle of road surface
Comfort substantially reduce；On the other hand, when surface friction coefficient changes, the adhesive force of vehicle can also change, at this point,
If driver has found emergency and takes emergency braking, braking distance will be made elongated greater than safe distance, to driving
The operation of member brings great difficulty, even will cause traffic accident when serious.Therefore we should be able to quickly and easily measure road surface
Coefficient of friction, especially when surface friction coefficient changes, so that we can take effective maintenance processing mode.
At present surface friction coefficient measurement mostly use be pendulum friction coefficient determinator, dynamic friction coefficient analyzer and
Brake type surface friction coefficient detection device.Pendulum friction coefficient determinator is mainly equipped with rubber block in portable pendulum tester bottom end, allows
Pendulum falls from certain height, and since rubber block and road surface have certain frictional resistance to consume energy, pendulum can only be returned to than original
Carry out low height, so that surface friction coefficient is calculated, but the method is in the measurements, and spine is equipped in the shaft connecting with pendulum
Wheel, by the one-directional rotation characteristic of ratchet, to record the numerical value measured every time, but during ratchet wheel, often needs
Certain kinetic energy is consumed, and then causes measurement result inconsistent with actual result, so that detection data precision is relatively low；Together
When the method can only reflect the coefficient of friction on road surface when speed is lower, and can only pavement friction system under single point assay certain speed
Number；Total is complicated, and mobile and transport is inconvenient, and is easy to appear to collide with and leads to equipment damage, can not normal use.
Utility model content
The purpose of this utility model is to provide a kind of surface friction coefficient detection devices, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the utility model provides the following technical solutions:
A kind of surface friction coefficient detection device including pedestal and is set to the adjustment lower margin of pedestal quadrangle, the bottom
Seat middle part is equipped with sliding slot, and test block is slidably connected in the sliding slot, and right side is equipped with testing jig, the testing jig in the sliding slot
It is connect with base rotation, the pedestal upper end is equipped with limited block, and the limited block is located on the right side of testing jig, sets on the testing jig
There are pulley blocks, the pulley blocks are equipped with rope, and described rope one end connect with test block, sets between the rope and test block
There is tension sensor, the rope other end is removably connected with counterweight.
As a further solution of the present invention: the test block bottom is removably connected with friction plate.
As a further solution of the present invention: it is equipped with lock close to the left side side of test block in the pedestal,
Lock ring is equipped with the lock corresponding position on the test block.
As a further solution of the present invention: the testing jig is connected by shaft and pedestal rotation, the shaft
Front side is equipped with fastening bolt.
As a further solution of the present invention: the limited block is located at when testing jig being made to be expanded to extreme position and bottom
Seat place's setting in 90 °.
As a further solution of the present invention: the pulley blocks include the first pulley positioned at testing jig left bottom
With the second pulley being located at the top of testing jig, the first pulley and the tension sensor are located at the same horizontal position.
As a further solution of the present invention: the pedestal is equipped with display device.
As a further solution of the present invention: the pedestal upper end is equipped with level meter.
Compared with prior art, the utility model has the beneficial effects that the utility model will be matched by rope and pulley blocks
Weight gravity as power transmission to measuring block, then measured by the motion transform process of measuring block the static friction on road surface with
And dynamic friction coefficient, while to change the movement velocity of measuring block, thus can also can be simulated by the weight of change counterweight
Measure the tire under different speeds and the coefficient of friction on road surface；Furthermore the utility model uses foldover design, by by testing jig
It is folded, the bulk of equipment can be significantly reduced, so that transport more convenience is quick, avoided in transportational process and examine
The damage of measurement equipment.
Detailed description of the invention
Fig. 1 is the utility model main view.
Fig. 2 is the utility model top view.
In figure: 1- pedestal, 2- adjustment lower margin, 3- testing jig, 4- shaft, 5- fastening bolt, 6- limited block, 7- change wheel group,
8- rope, 9- counterweight, 10- test block, 11- tension sensor, 12- lock, 13- friction plate, 14- display device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to FIG. 1-2, in the utility model embodiment, a kind of surface friction coefficient detection device, including pedestal 1 and
It is set to 1 four jiaos of pedestal of adjustment lower margin 2,1 upper end surface of pedestal is equipped with level meter, can be with by adjusting lower margin 2 and level meter
Horizontal position adjustment is carried out to pedestal 1, sliding slot is equipped in the middle part of pedestal 1, slidably connects test block 10,10 bottom of test block in sliding slot
End is removably connected with friction plate 13, and friction plate 13 is rubber material, and then the operating condition that can be travelled with simulating wheel, right in sliding slot
Side is equipped with lock 12, and 10 left end of test block is equipped with lock ring, and lock 12 is corresponding with lock ring position to be arranged, right side is equipped with test in sliding slot
Frame 3, testing jig 3 are rotatablely connected with pedestal 1 by shaft 4, and 4 front end of shaft is equipped with fastening bolt 5, is surveyed by 5 Duis of fastening bolt
Examination frame 3 carries out any position and fixes, and 1 upper end of pedestal is equipped with limited block 6, and limited block 6 is located at 3 right side of testing jig, and testing jig 3 rotates
Limited block 6 is contacted when to extreme position, angle is 90 ° between testing jig 3 and pedestal 1 at this time, and testing jig 3 is equipped with pulley blocks 7,
Pulley blocks 7 include the second pulley positioned at the first pulley of 3 left bottom of testing jig and positioned at the top of testing jig 3, on pulley blocks 7
Equipped with rope 8, rope 8 is passed through from first pulley bottom, and rope 8 passes through at the top of second pulley, 8 one end of rope and test block 10
Connection, is equipped with tension sensor 11 between rope 8 and test block 10, first pulley and the tension sensor 11 are located at same water
Prosposition is set, and 8 other end of rope is removably connected with counterweight 9, so can be moved horizontally by configuring 9 as test block 10 provide it is dynamic
Power, 1 upper surface of pedestal are equipped with display device 14, the pulling force monitored by display device 14 to tension sensor 11 in detection process
Carry out real-time display.
The utility model structure novel, it is stable, when the utility model is used, rotary test frame 3, by testing jig 3
It rotates from pedestal parallel position to upright position, position is then carried out to testing jig 3 by fastening bolt 5 and is fixed, then the bottom of by
Seat 1 is placed on road surface to be detected, and adjustment is located at 1 four jiaos of pedestal of adjustment lower margin 2, and the level by being located at 1 upper end of pedestal
Instrument carries out feedback adjustment, until pedestal 1 is adjusted to horizontal position, the test block that horizontally slips more than 10 times, with altitude simulation wheel
Then test block 10 is slid into the leftmost side by the operating condition in traveling, lock of the latch closure into 1 inside of pedestal until test block 10 is locked
In 12, the counterweight 9 of the suitable quality of reselection is simultaneously connected to 8 other end of rope, during the test, is first turned on lock
12, test block 10 and pedestal 1 are detached from, then drives test block 10 to move right under the action of counterweight 9, passes through pull sensing
11 monitoring and test block 10 of device can detecte out corresponding road surface from stationary state to the frictional force in moving condition whole process
Coefficient of friction between rubber material, while can also be tried by the multiple grouping under test of many times and the configuration of multiple groups difference
It tests to improve the accuracy of detection.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of surface friction coefficient detection device, including pedestal (1) and it is set to the adjustment lower margin (2) of pedestal (1) quadrangle,
It is characterized in that, being equipped with sliding slot in the middle part of the pedestal (1), slidably connected test block (10) in the sliding slot, in the sliding slot
Right side is equipped with testing jig (3), and the testing jig (3) and pedestal (1) are rotatablely connected, and pedestal (1) upper end is equipped with limited block
(6), the limited block (6) is located on the right side of testing jig (3), and the testing jig (3) is equipped with pulley blocks (7), the pulley blocks (7)
It is equipped with rope (8), described rope (8) one end connect with test block (10), is equipped between the rope (8) and test block (10)
Tension sensor (11), rope (8) other end are removably connected with counterweight (9).
2. a kind of surface friction coefficient detection device according to claim 1, which is characterized in that test block (10) bottom
Portion is removably connected with friction plate (13).
3. a kind of surface friction coefficient detection device according to claim 1, which is characterized in that leaned in the pedestal (1)
The left side side of nearly test block (10) is equipped with lock (12), sets on the test block (10) with described lock (12) corresponding position
There is lock ring.
4. a kind of surface friction coefficient detection device according to claim 1, which is characterized in that the testing jig (3) is logical
It crosses shaft (4) and pedestal (1) rotation to connect, is equipped with fastening bolt (5) on front side of the shaft (4).
5. a kind of surface friction coefficient detection device according to claim 1, which is characterized in that limited block (6) position
It is arranged when making testing jig (3) be expanded to extreme position with pedestal (1) place in 90 °.
6. a kind of surface friction coefficient detection device according to claim 1, which is characterized in that pulley blocks (7) packet
Include positioned at testing jig (3) left bottom first pulley and be located at testing jig (3) at the top of second pulley, the first pulley with
The tension sensor (11) is located at the same horizontal position.
7. a kind of surface friction coefficient detection device according to claim 1, which is characterized in that set on the pedestal (1)
There are display device (14).
8. a kind of surface friction coefficient detection device according to claim 1, which is characterized in that pedestal (1) upper end
Equipped with level meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094948.8U CN208366814U (en) | 2018-07-11 | 2018-07-11 | A kind of surface friction coefficient detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094948.8U CN208366814U (en) | 2018-07-11 | 2018-07-11 | A kind of surface friction coefficient detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208366814U true CN208366814U (en) | 2019-01-11 |
Family
ID=64925341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821094948.8U Expired - Fee Related CN208366814U (en) | 2018-07-11 | 2018-07-11 | A kind of surface friction coefficient detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208366814U (en) |
-
2018
- 2018-07-11 CN CN201821094948.8U patent/CN208366814U/en not_active Expired - Fee Related
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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: 20190111 Termination date: 20210711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |