CN209525245U - Rotary frictional factor test device - Google Patents
Rotary frictional factor test device Download PDFInfo
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- CN209525245U CN209525245U CN201920060865.5U CN201920060865U CN209525245U CN 209525245 U CN209525245 U CN 209525245U CN 201920060865 U CN201920060865 U CN 201920060865U CN 209525245 U CN209525245 U CN 209525245U
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Abstract
The utility model relates to rotary frictional factor test devices, including a bracket and the level board being fixed on bracket, a lever are fixed on level board, described lever one end is fixed with an electromagnet, has a conductive coil immediately below electromagnet；The lever other end is fixed with a motor rotated in the horizontal direction, and the lower end of motor shaft is fixed with a rotating disc, and friction rubber is arranged at the bottom of the rotating disc.The utility model is using electromagnetism as driving source, and using motor self weight as the loading force of friction rubber, when conductive coil is powered, electromagnet moves down under magneticaction attraction, and the effect of lever is so that motor drives rotating disk to leave ground；Electrical power, rotating disk is driven to start turning, up to after certain revolving speed, conductive coil and motor are powered off, the effect of electromagnet non-electromagnetic-force up moves, so that the motor of the lever other end move down until rotation pan bottom friction rubber engaged test face, rotating disk frictional force effect under underdrive until stop.
Description
Technical field
The utility model relates to a kind of frictional factor test device, more particularly to rotary frictional factor test device,
Belong to highway pavement coefficient of friction testing equipment field.
Background technique
Highway in China development at present is advanced by leaps and bounds, and highway total amount is increasing.Coefficient of friction has been used as a kind of evaluation
One of important parameter of Pavement Road Surface Quality.The size of coefficient of friction shows the antiskid performance on road surface, for highway safety offer property
It can index.
What domestic application was wider at present is trailer-type cross force friction coefficient tester, and there are use scopes to be restricted, small
The shortcomings that place is unable to measure.It is domestic and lose rotary friction system test equipment about highway pavement.Rotary friction
Coefficient determination principle refers to be braked with the disk of certain speed rotation to be contacted with road surface, is gradually slowed down under the action of frictional force
Until stopping, which is known as rotary coefficient of friction.
Chinese patent " testing system for tyre-surface-road-surface friction property of weatherproof tyre " (ZL2011203612088) discloses
The frictional behavior test that can be used for tire tread, obtains tire tread from the rotary the friction coefficient between different road surfaces and slides speed
Degree, the test curve of vertical load, environment temperature and humidity variation.The test macro is surveyed primarily directed to the performance of tire tread
Fixed, the braking of rotating disk needs an environment storehouse by the way of hydraulic, and in test, which is unsuitable for public affairs
The on-site test on road road surface.
Chinese patent " a kind of rotary skin-friction coefficient test macro and test " (application number 2017107110237) is public
A kind of rotary coefficient of friction that can test floor is opened, but the test macro is directed to dynamic friction coefficient, is standard
Coefficient of friction of the weight on floor in rotary course, rather than highway pavement is for rotation to be tested required in braking process
Formula coefficient of friction.
Summary of the invention
For the needs in above-mentioned field, the utility model provides a kind of rotary frictional factor test device, operation letter
Single, portable equipment, for measuring the dynamic friction coefficient in two sliding contact surfaces in braking process.
This test equipment can also measure the ground in building and gymnasium, even in addition to it can measure road surface
The entrance of catwalk and bus, table surface and analog.
Rotary frictional factor test device, including a bracket and the level board being fixed on bracket, it is characterised in that:
A lever is fixed on the level board, described lever one end is fixed with an electromagnet, has a conduction immediately below electromagnet
Coil；The lever other end is fixed with a motor rotated in the horizontal direction, and the lower end of motor shaft is fixed with a rotating disc, institute
Friction rubber is arranged at the bottom for stating rotating disc.
The lever is fixed on lever support.
The rotating electric machine is fixed by L shape connecting plate and the lever other end, and the rotating electric machine is fixed on L shape connecting plate
Transverse slat on, the lever other end and the riser of L shape connecting plate are fixed.
The conductive coil is hollow cylinder, and after conductive coil energization under magneticaction, electromagnet can be inserted into
In hollow circuit cylinder.
The friction rubber has three pieces, and the bottom of rotating disc is distributed in 120 degree of angles.
The bracket is a square frame, and level board is located at the upper surface of square frame.
The conductive coil is fixed on a side of square frame.
The two sides of adjacent conductive coil are equipped with water pipe on the square frame.It can be used to spill to road surface when needed
Water.
The utility model is using electromagnetism as driving source, using motor self weight as the loading force of friction rubber, when conductive coil is logical
Electricity, electromagnet move down under magneticaction attraction, and the effect of lever is so that motor drives rotating disk to leave ground；Motor is logical
Electricity drives rotating disk to start turning, and after reaching certain revolving speed, conductive coil and motor is powered off, the effect of electromagnet non-electromagnetic-force
It up moves, so that the motor of the lever other end moves the friction rubber engaged test face until rotation pan bottom, rotation down
Disk frictional force effect under underdrive until stop.The coefficient of friction on road surface is conversed by fraction time and frictional force.
This equipment may be implemented to record number in a graphical form while measuring operation in the case where adding recorder outside
According to.
Detailed description of the invention
Fig. 1 the utility model schematic perspective view,
Fig. 2 the utility model schematic top plan view,
The schematic top plan view of Fig. 3 rotating disc,
Fig. 4 friction rubber schematic diagram,
1-frame, 2-motors, 3-levers, 4-lever supports, 5-conductive coils, 6-rotating discs, 7-water pipes, 8-
Friction rubber, 9- electromagnet, 10-L shape connecting plate, 11- level board.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings.
As shown in Figs. 1-2, rotary frictional factor test device, including square frame 1 and be fixed on frame 1
Level board 11, it is characterised in that: a lever 3 is fixed on the level board 11, the lever 3 is fixed on lever support 4
On.
Described 3 one end of lever is fixed with an electromagnet 9, there is a conductive coil 5, the conductor wire immediately below electromagnet 9
Circle 5 is fixed on a side of square frame 1；The riser of 3 other end of lever and a L shape connecting plate 10 is fixed, L shape
The transverse slat of connecting plate 10 is fixed with a motor 2 rotated in the horizontal direction, and the lower end of the motor shaft of motor 2 is fixed with a rotating disc
6, friction rubber 8 is arranged at the bottom of the rotating disc 6.
When conductive coil 5 is powered, electromagnet 9 moves down under magneticaction attraction, and the effect of lever 3 is so that motor 2
Rotating disk 6 is driven to leave ground；Motor 2 is powered, and rotating disk 6 is driven to start turning, up to after certain revolving speed, by conductive coil 5 with
Motor 2 powers off, and the effect of 9 non-electromagnetic-force of electromagnet up moves, so that the motor 2 of 3 other end of lever is under Gravitative Loads power
The 8 engaged test face of friction rubber until 6 bottom of rotating disk is moved down, and the underdrive under frictional force effect of rotating disk 6 is straight
To stopping.The coefficient of friction on road surface is conversed by fraction time and frictional force.
As shown in Figure 3-4, the friction rubber 8 has three pieces, and the bottom of rotating disc 6 is distributed in 120 degree of angles.
It is preferred that: the conductive coil 5 is hollow cylinder, after the energization of conductive coil 5 under magneticaction, electromagnet
9 can be inserted into intermediate cylindrical.
More preferable: the two sides of adjacent conductive coil 5 are equipped with water pipe 7 on the square frame 1.It can be used to when needed
It sprinkles water to road surface, equipment is made to be provided with the ability of detection wet-skid road surface.
Claims (8)
1. rotary frictional factor test device, including a bracket and the level board being fixed on bracket, it is characterised in that: institute
It states and is fixed with a lever on level board, described lever one end is fixed with an electromagnet, has a conductor wire immediately below electromagnet
Circle；The lever other end is fixed with a motor rotated in the horizontal direction, and the lower end of motor shaft is fixed with a rotating disc, described
Friction rubber is arranged at the bottom of rotating disc.
2. rotary frictional factor test device according to claim 1, it is characterised in that: the lever is fixed on lever
On support.
3. rotary frictional factor test device according to claim 1, it is characterised in that: the motor is connected by L shape
Fishplate bar is fixed with the lever other end, and the motor is fixed on the transverse slat of L shape connecting plate, the lever other end and L shape connecting plate
Riser is fixed.
4. rotary frictional factor test device according to claim 1, it is characterised in that: the conductive coil is hollow
Cylinder, conductive coil energization after under magneticaction, electromagnet can be inserted into hollow circuit cylinder.
5. rotary frictional factor test device according to claim 1, it is characterised in that: the friction rubber has three
Block is distributed in the bottom of rotating disc in 120 degree of angles.
6. rotary frictional factor test device according to claim 1, it is characterised in that: the bracket is a square
Frame, level board are located at the upper surface of square frame.
7. rotary frictional factor test device according to claim 6, it is characterised in that: the conductive coil is fixed on
On one side of square frame.
8. rotary frictional factor test device according to claim 7, it is characterised in that: adjacent on the square frame
The two sides of conductive coil are equipped with water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060865.5U CN209525245U (en) | 2019-01-14 | 2019-01-14 | Rotary frictional factor test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920060865.5U CN209525245U (en) | 2019-01-14 | 2019-01-14 | Rotary frictional factor test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209525245U true CN209525245U (en) | 2019-10-22 |
Family
ID=68228646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920060865.5U Active CN209525245U (en) | 2019-01-14 | 2019-01-14 | Rotary frictional factor test device |
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| CN (1) | CN209525245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU196928U1 (en) * | 2020-01-31 | 2020-03-23 | Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) | Device for determining the coefficient of external friction of the soil |
-
2019
- 2019-01-14 CN CN201920060865.5U patent/CN209525245U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU196928U1 (en) * | 2020-01-31 | 2020-03-23 | Федеральное государственное бюджетное научное учреждение "Федеральный научный агроинженерный центр ВИМ" (ФГБНУ ФНАЦ ВИМ) | Device for determining the coefficient of external friction of the soil |
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