CN206684021U - A kind of static and dynamic friction coefficient measure and frictional force probe into device - Google Patents
A kind of static and dynamic friction coefficient measure and frictional force probe into device Download PDFInfo
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- CN206684021U CN206684021U CN201720257308.3U CN201720257308U CN206684021U CN 206684021 U CN206684021 U CN 206684021U CN 201720257308 U CN201720257308 U CN 201720257308U CN 206684021 U CN206684021 U CN 206684021U
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Abstract
A kind of static and dynamic friction coefficient measure and frictional force probe into device, including system platform, DC low-speed motor, reel, grips pincers, computer dynamometry harvester, force snesor platform, force snesor, upper friction material, lower friction material and placement friction material platform；Static and dynamic friction coefficient of the present utility model measure and frictional force probe into device have the advantages that it is comprehensive it is strong, function is more, data are accurate, detected for every profession and trade material friction coefficient and accurate data be provided；The device requires low to the shape size of research material, strong to the compatibility of material, and friction material changes facility, the measure research for coefficient of friction of being more convenient for；The apparatus structure is simple simultaneously, convenient disassembly, and DC low-speed motor speed is stable, using the teaching of the invention it is possible to provide size stable pulling force and uniform motion, easily facilitates experimental teaching research and demonstration, has big use value and promotional value.
Description
Technical field
The utility model belongs to friction measurement technical field, more particularly to a kind of static and dynamic friction coefficient measure and frictional force
Probe into device.
Background technology
In industrial processes, friction is one of industrial key factor, and friction can cause deformation of products uneven
It is even, abrasion, skid etc., this will all have a great impact to properties of product and life-span, thus friction problem be in engineer applied urgently
One of problem to be solved.Static and dynamic friction coefficient measure be to the important tests of the Study on Friction Properties between different materials it
One.
Frictional force is relevant with the object of phase mutual friction, therefore the description for making to make to frictional force in physics is unusual
Change, also unlike so accurate to other power.
Research of the domestic related research institutes to the coefficient of sliding friction is based primarily upon rotating disc type frictional resistance tester, and this is existing
Some experiment friction coefficient determination systems are complicated, it is necessary to a variety of precision components, and test block is only circular cross-section, gives
Sample prepares and brings limitation.The instrument of disclosed measurement confficient of static friction much has stronger specific aim, i.e. use range
The measuring friction coefficient of a kind of storeroom is confined to, is not suitable for other materials.
The relevant frictional force content of courses in physics lesson, 1, do not have to probe into demonstration static friction visual in imagely in existing instrument
The instrument of power factor, make experimental teaching extremely difficult, the research and experiment of stiction turn into the religion of Physical Education Teacher's headache the most
Learn problem.2nd, existing instrument hand twist method drawing friction block, pulling force and the side of uniform motion two of horizontal direction can not be grasped
The science requirements in face.3rd, existing instrument can not change friction material at any time when in use, and inconvenience is provided for user.
At present it is disclosed measure coefficient of friction or probe into friction effects factor system can only individually be measured or
Probe into, be not integrated in one.The shortage of existing instrumental function and defect, turn into urgent problem to be solved.
Utility model content
The purpose of this utility model is that providing a kind of static and dynamic friction coefficient measure and frictional force probes into device, existing to solve
There is static and dynamic friction coefficient measuring instrument in technology to select material with strong points, sample to prepare size, shape need height, in teaching
Visual in image property is poor, direction of pull is not horizontal, motion not at the uniform velocity, friction material change it is inconvenient the problems such as.
To achieve the above object, the utility model uses following technical scheme：
A kind of static and dynamic friction coefficient measure and frictional force probe into device, including system platform, DC low-speed motor, coiling
Wheel, grips pincers, computer dynamometry harvester, force snesor platform, force snesor, upper friction material, lower friction material and placement
Friction material platform；DC low-speed motor is fixed on one end of system platform upper surface, and reel is fixed on DC low-speed motor
Output shaft on；The other end of system platform upper surface sets force sensor platform, force snesor platform and DC low-speed electricity
It is provided between machine and places friction material platform, placing friction material platform being capable of the horizontal movement in system platform；Placement rubs
Wipe the superposition of material platform upper surface and be provided with friction material and lower friction material；Place between friction material platform and reel
It is provided with motor line of pull；Force sensor is set on force snesor platform, and force snesor is adopted by data wire and computer dynamometry
Acquisition means connect；Force sensor line of pull is set between force snesor and upper friction material；Place the side of friction material platform
Edge is provided with several grips pincers for being used for fixed time friction material.
Further, it is provided with shaft coupling between reel and DC low-speed motor；DC low-speed motor passes through motor branch
Frame is fixed in system platform；DC low-speed motor is also associated with Switching Power Supply, speed regulator and three gear rotary switches；Three gear rotations
Switch has rotating forward, reversion and stops three gears.
Further, the lower surface of system platform is provided with some short support feets；The lower surface of force snesor platform is set
There are some spikes of drawing money on credit；The upper surface of system platform is provided with system platform spirit level；The upper surface of force snesor platform is set
Force sensor platform spirit level；Extension spring is provided between force snesor platform and placement friction material platform.
Further, the both sides for placing the lower surface of friction material platform set fluted pulley；In system platform with
Position corresponding to groove pulley is provided with two parallel convex guide rails；Groove pulley sleeve is on convex guide rail；The end of convex guide rail
It is fixedly installed baffle plate.
Further, two travel switches are provided with a side of system platform；Between two travel switches away from
From the length less than convex guide rail；Tactile wall is fixedly installed on two terminations of a side for placing friction material platform, touches wall
Travel switch can be touched.
Further, grips pincers include the fixed arm of force, tong arm, the movable arm of force, handle and threaded rod；Fixed arm of force level is set
Put, tong arm is vertically fixed on one end of the fixed arm of force, and one end of the movable arm of force is set in tong arm, and the movable arm of force and the fixed arm of force
It is parallel；The other end of the movable arm of force, which extends vertically through, is provided with threaded rod；The top of threaded rod is provided with handle.
Further, also it is placed with line of pull horizontal measuring instrument between lower friction material and force snesor platform.
Further, line of pull horizontal measuring instrument includes base, supporting plate, iron plate, spirit level support, spirit level, double quarters
Spend plate and regulating bolt；Supporting plate is vertically fixed on base, and long stripes through hole, the side surface of supporting plate one are provided with supporting plate
It is bolted and is provided with iron plate, the through hole being provided with iron plate as supporting plate；The opposite side of supporting plate passes through regulation
Bolt is provided with double scale plate, and regulating bolt is arranged on double scale plate through long stripes through hole, and double scale plate and supporting plate
In 90 ° of angles；Spirit level support vertical is arranged on double scale plate, and the upper surface of spirit level support is provided with spirit level.
Further, some counterweights are placed with upper friction material.
Compared with prior art, the utility model has following technique effect：
Static and dynamic friction coefficient of the present utility model measure and frictional force probe into device have it is comprehensive it is strong, function is more, data
The advantages that accurate, accurate data are provided for the detection of every profession and trade material friction coefficient；The device is big to the shape of research material
Small to require low, strong to the compatibility of material, friction material changes facility, the measure research for coefficient of friction of being more convenient for；The dress simultaneously
Simple in construction, convenient disassembly is put, DC low-speed motor speed is stable, using the teaching of the invention it is possible to provide size stable pulling force and uniform motion, more
Add and be easy to experimental teaching to study and demonstrate, there is big use value and promotional value.
Brief description of the drawings
Fig. 1 is that static and dynamic friction coefficient measure and frictional force provided by the utility model probe into schematic device；
Fig. 2 is grips pincers structural representation provided by the utility model；
Fig. 3 is line of pull horizontal measuring instrument schematic diagram；
Fig. 4 is double scale plate end structure partial enlarged drawing；
Wherein：1st, Switching Power Supply；2nd, electric machine support；3rd, travel switch；4th, contact arm；5th, grips pincers；6th, upper friction material；7、
Lower friction material；8th, line of pull horizontal measuring instrument；9th, computer and dynamometry acquisition software；11st, force snesor；12nd, force snesor is put down
Platform spirit level；13rd, force snesor platform；14th, draw money on credit spike；15th, short support feet；16th, extension spring；17th, friction material is placed
Platform；18th, force snesor line of pull；19th, groove pulley；20th, standard test weight；21st, raised track；22nd, motor line of pull；23rd, keep off
Plate；24th, three gear rotary switch；26th, speed regulator；27th, system platform；28th, system platform spirit level；29th, reel；30th, shaft coupling
Device；31st, DC low-speed motor；32nd, tong arm；33rd, the movable arm of force；34th, the fixed arm of force；35th, threaded rod；36th, handle；37th, support
Plate；38th, iron plate；39th, spirit level support；40th, spirit level；41st, double scale plate；42nd, base；44th, adjusting nut.
Embodiment
Knot and accompanying drawing further illustrate to the utility model below：
Refer to Fig. 1 to Fig. 3, a kind of static and dynamic friction coefficient measure and frictional force probe into device, including system platform 27, straight
Flow slowspeed machine 31, reel 29, grips pincers 5, computer dynamometry harvester 9, force snesor platform 13, force snesor 11, on
Friction material 6, lower friction material 7 and placement friction material platform 17；DC low-speed motor 31 is fixed on the upper table of system platform 27
The one end in face, reel 29 are fixed on the output shaft of DC low-speed motor 31；The other end of the upper surface of system platform 27 is set
Force sensor platform 13, it is provided between force snesor platform 13 and DC low-speed motor 31 and places friction material platform 17,
Placing friction material platform 17 being capable of the horizontal movement in system platform 27；The upper surface superposition of friction material platform 17 is placed to set
There are upper friction material 6 and lower friction material 7；Place and be provided with motor line of pull between friction material platform 17 and reel 29
22；Force sensor 11 is set on force snesor platform 13, and force snesor 11 is connected by data wire and computer dynamometry harvester 9
Connect；Force sensor line of pull 18 is set between force snesor 11 and upper friction material 6；Place the edge of friction material platform 17
It is provided with several grips pincers 5 for being used for fixed time friction material 7.
Shaft coupling 30 is provided between reel 29 and DC low-speed motor 31；DC low-speed motor 31 passes through electric machine support
2 are fixed in system platform 27；DC low-speed motor 31 is also associated with Switching Power Supply 1, speed regulator 26 and three keeps off rotary switch
24；Three gear rotary switches 24 have rotating forward, reversion and stop three gears.
The lower surface of system platform 27 is provided with some short support feets 15；If the lower surface of force snesor platform 13 is provided with
Dry spike 14 of drawing money on credit；The upper surface of system platform 27 is provided with system platform spirit level 28；The upper surface of force snesor platform 13
Force sensor platform spirit level 12 is set；Stretching bullet is provided between force snesor platform 13 and placement friction material platform 17
Spring 16.
The both sides for placing the lower surface of friction material platform 17 set fluted pulley 19；In system platform 27 with groove
Position corresponding to pulley 19 is provided with two parallel convex guide rails 21；Groove pulley 19 is enclosed on convex guide rail 21；Convex guide rail 21
End is fixedly installed baffle plate 23.
Two travel switches 3 are provided with one side of system platform 27；The distance between two travel switches 3 are less than
The length of convex guide rail 21；Tactile wall 4 is fixedly installed on two terminations of a side for placing friction material platform 17, touches wall 4
Travel switch 3 can be touched.
Grips pincers 5 include the fixed arm of force 34, tong arm 32, the movable arm of force 33, handle 36 and threaded rod 35；The fixed water of the arm of force 34
Flat to set, tong arm 32 is vertically fixed on one end of the fixed arm of force 34, and one end of the movable arm of force 33 is set in tong arm 32, and energy
Arm 33 is parallel with the fixed arm of force 34；The other end of the movable arm of force 33, which extends vertically through, is provided with threaded rod 35；The top of threaded rod 35
It is provided with handle 36.
Line of pull horizontal measuring instrument 8 is also placed between lower friction material 7 and force snesor platform 13.
Line of pull horizontal measuring instrument 8 includes base 42, supporting plate 37, iron plate 38, spirit level support 39, spirit level 40, double
Scale plate 41 and regulating bolt 44；Supporting plate 37 is vertically fixed on base 42, and long stripes through hole is provided with supporting plate 37, branch
The side surface of fagging 37 1, which is bolted, is provided with iron plate 38, the through hole being provided with iron plate 38 as supporting plate 37；Branch
The opposite side of fagging 37 is provided with double scale plate 41 by regulating bolt 44, and regulating bolt is arranged on double quarters through long stripes through hole
Spend on plate 41, and double scale plate 41 and supporting plate 37 are in 90 ° of angles；Spirit level support 39 is vertically set on double scale plate 41,
The upper surface of spirit level support 39 is provided with spirit level 40.
Some counterweights 20 are placed with upper friction material 6.
Operation principle of the present utility model：
The coefficient of kinetic friction and confficient of static friction measure：
1) lower friction material 7 is placed, and is fixed by grips pincers 5；The quality of friction material 6 is simultaneously on electronic balance weighing
Record；Computer dynamometry harvester 9 is opened, inputs respective quality value；Friction material 6 is above lower friction material 7 in placement；Adjust
Short support feet 15 is saved, makes system platform 27 horizontal；Line of pull horizontal measuring instrument 8 is placed, spike 14 of drawing money on credit is adjusted, makes force snesor
Line of pull 18 is horizontal；
2) DC low-speed motor 31 is powered, and three gear rotary switches 24 go to motor and rotate forward gear, and DC low-speed motor 31 is slow
It is slow to pull placement friction material platform 17 to travel forward, after touching the touching travel switch 3 of wall 4, the power supply of shut-off DC low-speed motor 31；
Suspend dynamometry acquisition software data acquisition, the coefficient of kinetic friction and confficient of static friction are calculated by software, and are shown in dynamometry
In acquisition software interface；
3) three gear rotary switches 24 go to reversion gear, after placing friction material platform 17 in the presence of the extension spring 16
Move back, after touching the touching travel switch 3 of wall 4, the power supply of cut-out DC low-speed motor 31, place friction material platform 17 and playback.
Frictional force is probed into：
For the present apparatus by control variate method, the normal pressure size, contact area size and contact surface for probing into friction material are thick
Influence of the factors such as rough degree to stiction and force of sliding friction size.
1) the upper friction material 6 and lower friction material 7 that selection to be studied, and be placed on friction material platform 17, pass through
Grips pincers 5 fix；
2) DC low-speed motor 31 is powered, and three gear rotary switches 24 go to motor and rotate forward gear, and DC low-speed motor 31 is slow
It is slow to pull placement friction material platform 17 to travel forward, after touching the touching travel switch 3 of wall 4, the power supply of shut-off DC low-speed motor 31；
3) computer dynamometry harvester 9 is opened, friction effects factor is probed into by pulling force size curve or real time value.
Claims (9)
1. a kind of static and dynamic friction coefficient measure and frictional force probe into device, it is characterised in that low including system platform (27), direct current
Speed motor (31), reel (29), grips pincers (5), computer dynamometry harvester (9), force snesor platform (13), force snesor
(11), upper friction material (6), lower friction material (7) and placement friction material platform (17)；DC low-speed motor (31) is fixed on
One end of system platform (27) upper surface, reel (29) are fixed on the output shaft of DC low-speed motor (31)；System platform
(27) other end of upper surface sets force sensor platform (13), force snesor platform (13) and DC low-speed motor (31) it
Between be provided with and place friction material platform (17), place friction material platform (17) can in system platform (27) horizontal fortune
It is dynamic；Place the superposition of friction material platform (17) upper surface and be provided with friction material (6) and lower friction material (7)；Place friction
Motor line of pull (22) is provided between material platform (17) and reel (29)；Strong pass is set on force snesor platform (13)
Sensor (11), force snesor (11) are connected by data wire with computer dynamometry harvester (9)；Force snesor (11) and upper friction
Force sensor line of pull (18) is set between material (6)；The edge for placing friction material platform (17) is provided with several use
In the grips pincers (5) of fixed lower friction material (7).
2. a kind of static and dynamic friction coefficient measure according to claim 1 and frictional force probe into device, it is characterised in that coiling
Shaft coupling (30) is provided between wheel (29) and DC low-speed motor (31)；DC low-speed motor (31) passes through electric machine support (2)
It is fixed in system platform (27)；DC low-speed motor (31) is also associated with Switching Power Supply (1), speed regulator (26) and three gear rotations
Switch (24)；Three gear rotary switches (24) have rotating forward, reversion and stop three gears.
3. a kind of static and dynamic friction coefficient measure according to claim 1 and frictional force probe into device, it is characterised in that system
The lower surface of platform (27) is provided with some short support feets (15)；The lower surface of force snesor platform (13) is provided with some draw money on credit
Spike (14)；The upper surface of system platform (27) is provided with system platform spirit level (28)；The upper table of force snesor platform (13)
Face sets force sensor platform spirit level (12)；Set between force snesor platform (13) and placement friction material platform (17)
There is extension spring (16).
4. a kind of static and dynamic friction coefficient measure according to claim 1 and frictional force probe into device, it is characterised in that place
The both sides of the lower surface of friction material platform (17) set fluted pulley (19)；In system platform (27) with groove pulley
(19) position corresponding to is provided with two parallel convex guide rails (21)；Groove pulley (19) is enclosed on convex guide rail (21)；Convex guide rail
(21) end is fixedly installed baffle plate (23).
5. a kind of static and dynamic friction coefficient measure according to claim 1 and frictional force probe into device, it is characterised in that system
Two travel switches (3) are provided with one side of platform (27)；The distance between two travel switches (3) are less than convex guide rail
(21) length；Tactile wall (4) is fixedly installed on two terminations of a side for placing friction material platform (17), touches wall
(4) travel switch (3) can be touched.
6. a kind of static and dynamic friction coefficient measure according to claim 1 and frictional force probe into device, it is characterised in that fixed
Clamping (5) includes the fixed arm of force (34), tong arm (32), the movable arm of force (33), handle (36) and threaded rod (35)；The fixed arm of force (34)
Horizontally disposed, tong arm (32) is vertically fixed on one end of the fixed arm of force (34), and one end of the movable arm of force (33) is set in tong arm
(32), and the movable arm of force (33) is parallel with the fixed arm of force (34)；The other end of the movable arm of force (33), which extends vertically through, is provided with screw thread
Bar (35)；The top of threaded rod (35) is provided with handle (36).
7. a kind of static and dynamic friction coefficient measure according to claim 1 and frictional force probe into device, it is characterised in that under rub
Wipe and be also placed with line of pull horizontal measuring instrument (8) between material (7) and force snesor platform (13).
8. a kind of static and dynamic friction coefficient measure according to claim 7 and frictional force probe into device, it is characterised in that pulling force
Line horizontal measuring instrument (8) includes base (42), supporting plate (37), iron plate (38), spirit level support (39), spirit level (40), double
Scale plate (41) and regulating bolt (44)；Supporting plate (37) is vertically fixed on base (42), and supporting plate is provided with length on (37)
Strip through-hole, the side surface of supporting plate (37) one, which is bolted, is provided with iron plate (38), and iron plate is provided with and supported on (38)
The through hole of plate (37) equally；The opposite side of supporting plate (37) is provided with double scale plate (41) by regulating bolt (44), adjusts spiral shell
Bolt is arranged on double scale plate (41) through long stripes through hole, and double scale plate (41) and supporting plate (37) are in 90 ° of angles；Double quarters
Degree plate (41) can be adjusted up and down apart from the height of base (42) by regulating bolt (44)；Spirit level support (39) is vertically set on
On double scale plate (41), the upper surface of spirit level support (39) is provided with spirit level (40).
9. a kind of static and dynamic friction coefficient measure according to claim 1 and frictional force probe into device, it is characterised in that according to
Measure is needed, and some counterweights (20) can be placed with upper friction material (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720257308.3U CN206684021U (en) | 2017-03-16 | 2017-03-16 | A kind of static and dynamic friction coefficient measure and frictional force probe into device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720257308.3U CN206684021U (en) | 2017-03-16 | 2017-03-16 | A kind of static and dynamic friction coefficient measure and frictional force probe into device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206684021U true CN206684021U (en) | 2017-11-28 |
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ID=60393202
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720257308.3U Expired - Fee Related CN206684021U (en) | 2017-03-16 | 2017-03-16 | A kind of static and dynamic friction coefficient measure and frictional force probe into device |
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| Country | Link |
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| CN (1) | CN206684021U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195500A (en) * | 2018-02-03 | 2018-06-22 | 河北航科工程检测设备技术有限公司 | A kind of bridge expanssion joint walks resistance automatic data acquisition experimental provision |
| CN108417126A (en) * | 2018-04-25 | 2018-08-17 | 王佳愉 | A kind of friction force demonstration instrument |
| CN110849743A (en) * | 2019-10-18 | 2020-02-28 | 江苏大学 | Ground mechanical property testing device for underwater operation of crawler vehicle |
| CN113240978A (en) * | 2021-04-28 | 2021-08-10 | 河北工业大学 | Standard cube star tiny space science experimental apparatus |
| WO2022141252A1 (en) * | 2020-12-30 | 2022-07-07 | 云南中烟工业有限责任公司 | Test system and test method for lip sticking force of tipping paper for cigarettes |
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2017
- 2017-03-16 CN CN201720257308.3U patent/CN206684021U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195500A (en) * | 2018-02-03 | 2018-06-22 | 河北航科工程检测设备技术有限公司 | A kind of bridge expanssion joint walks resistance automatic data acquisition experimental provision |
| CN108195500B (en) * | 2018-02-03 | 2024-06-07 | 河北航科工程检测设备技术有限公司 | Automatic data acquisition experimental device for bridge expansion joint running resistance |
| CN108417126A (en) * | 2018-04-25 | 2018-08-17 | 王佳愉 | A kind of friction force demonstration instrument |
| CN110849743A (en) * | 2019-10-18 | 2020-02-28 | 江苏大学 | Ground mechanical property testing device for underwater operation of crawler vehicle |
| WO2022141252A1 (en) * | 2020-12-30 | 2022-07-07 | 云南中烟工业有限责任公司 | Test system and test method for lip sticking force of tipping paper for cigarettes |
| US11950624B2 (en) | 2020-12-30 | 2024-04-09 | China Tobacco Yunnan Industrial Co., Ltd | Test system and test method for lip sticking force of tipping paper for cigarettes |
| CN113240978A (en) * | 2021-04-28 | 2021-08-10 | 河北工业大学 | Standard cube star tiny space science experimental apparatus |
| CN113240978B (en) * | 2021-04-28 | 2022-07-29 | 河北工业大学 | Standard cube star tiny space science experimental apparatus |
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Granted publication date: 20171128 Termination date: 20180316 |