CN205881266U - Test device is verified to frictional force - Google Patents
Test device is verified to frictional force Download PDFInfo
- Publication number
- CN205881266U CN205881266U CN201620329626.1U CN201620329626U CN205881266U CN 205881266 U CN205881266 U CN 205881266U CN 201620329626 U CN201620329626 U CN 201620329626U CN 205881266 U CN205881266 U CN 205881266U
- Authority
- CN
- China
- Prior art keywords
- slide block
- slide rail
- ergometer
- friction plate
- slider
- 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
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a test device is verified to frictional force relates to physics experiment device for mechanics technical field. Including the base, place the friction plate subassembly of base upper surface, slide rail and with slide rail matched with A slider and dynamometer, slide rail fixed mounting is in one side of base upper surface, a slider and slide rail sliding connection, the A slider is connected with the stiff end of dynamometer, the expansion end of dynamometer is connected with a B slider through pulling the rope, and the upper surface at the friction plate subassembly, B slider and friction plate subassembly sliding connection are placed to the B slider, the upper surface of base is provided with the motor, and the output of motor is connected with a gear. The beneficial effects of the utility model are that: use the utility model discloses the lecture experiment, operation process is simple and convenient, and directly perceived being convenient for of experiment effect is understood, is favorable to improving the teaching effects in classroom.
Description
Technical field
This utility model relates to physics's dynamics experimental device technical field.
Background technology
Physics is a natural science based on experiment, looks back physics and produces and the process of development, can see
Go out Physical Experiment and the most all occupy extremely important status. the either foundation of classical physics and development, or modern
Physical progress is all closely bound up with Physical Experiment.Physics teaching can be made to combine theory and practice together by experiment, cause student
Learning interest, guiding student is excavated problem, is excited its desire for knowledge, thus transfer them and learn the initiative of physics well with positive
Property, guide them to take a keen interest in science.Tested by reinforcement, be possible not only to make student possess certain perceptual knowledge, the more important thing is
Make student be further appreciated by physical concept and how law is set up on experiment basis, thus effectively help student
Form concept, derive rule, grasp theory, correctly and profoundly understand physical knowledge.By testing the observation energy of training student
Power, ability of thinking, self-learning ability and the ability pinpointed the problems, analyze problems and solve them；The experiment that training student is good
Method and basic experimental ability and manipulative ability, and cultivate the most further they capacity of working on one's own and
Innovation ability, but lack a kind of easy to use during at present senior middle school's classroom instruction, effect significantly about kinetic force of friction with
The experimental provision that stiction size compares.
Utility model content
Technical problem to be solved in the utility model, is the technical deficiency for above-mentioned existence, it is provided that a kind of dynamic friction
Power and stiction comparison means.Operating process is simple and convenient, and experiment effect is directly perceived, it is simple to understand, is conducive to improving classroom
Teaching efficiency.
The technical solution adopted in the utility model is: provides a kind of frictional force checking assay device, including base, is placed on
The friction plate assembly of base upper surface, slide rail and the A slide block matched with slide rail and ergometer；Slide rail is fixedly mounted on the end
The side of seat upper surface, A slide block is slidably connected with slide rail；A slide block is connected with the fixing end of ergometer；The movable end of ergometer leads to
Crossing and pull rope connection and have a B slide block, B slide block is placed on the upper surface of friction plate assembly, and B slide block is with friction plate component slippage even
Connect；The upper surface of base is provided with motor, and the outfan of motor connects a gear；If described friction plate assembly by
The different thin plate splicing of dry upper surface coefficient of friction forms, and has a tooth bar connecting near the side of motor output end,
Tooth bar matches with the gear being arranged on motor output end.
Optimizing the technical program further, the upper surface of the B slide block of frictional force checking assay device is provided with groove, groove
Inside it is placed with counterweight.
Optimizing the technical program further, the ergometer of frictional force checking assay device uses digital display ergometer, by digital display
The PLC display screen of ergometer is arranged on the upper end of A slide block.
This utility model is compared with traditional demenstration method, and it has the beneficial effects that: 1, motor can drive friction plate group
Part at the uniform velocity slides, it is ensured that the numerical value of ergometer demonstration is exactly the frictional force size of B slide block and friction plate inter-module；Friction plate group
Part is formed by the thin plate splicing that some upper surface coefficient of frictions are different, and A slide block is slidably connected with slide rail, and the A that can slide is sliding
Block is in different positions, thus selects the surface of different coefficients of friction, B slide block is placed on different positions and will have difference
Coefficient of friction, can produce multi-group data, improve the accuracy of experiment.
2, the upper surface of slide block is provided with groove, is placed with counterweight in groove, can keep the coefficient of friction in test not
Become and change the normal pressure between friction surface, repeat experiment, thus obtain multi-group data, averaged by test of many times, can
To improve the precision of experiment；
3, use digital display ergometer to make experimentation convenient reading convenient, improve precision, reduce in experimentation due to people
The incidental error caused for error in reading.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of another angle of this utility model；
Fig. 3 is the structural representation of another angle of this utility model.
In figure, 1, base；2, friction plate assembly；3, slide rail；4, A slide block；5, ergometer；6, rope is pulled；7, B slide block；8、
Motor；9, gear；10, tooth bar；11, counterweight；12, PLC display screen.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, shown in Fig. 3, frictional force checking assay device, including base 1, the friction that is placed on base upper surface
Board component 2, slide rail 3 and the A slide block 4 matched with slide rail 3 and ergometer 5；Slide rail 3 is fixedly mounted on base 1 upper surface
Side, A slide block 4 is slidably connected with slide rail 3；A slide block 4 is connected with the fixing end of ergometer 5；The movable end of ergometer 5 is by dragging
Dragging rope 6 connection and have a B slide block 7, B slide block 7 is placed on the upper surface of friction plate assembly 2, and B slide block 7 slides with friction plate assembly 2
Connect；The upper surface of base 1 is provided with motor 8, and the outfan of motor 8 connects a gear 9；Described friction plate group
Part 2 is formed by the thin plate splicing that some upper surface coefficient of frictions are different, and has one connecting near the side of motor 8 outfan
Individual tooth bar 10, tooth bar 10 matches with the gear 9 being arranged on motor 8 outfan；The upper surface of B slide block 7 is provided with groove, recessed
Counterweight 11 it is placed with in groove；Ergometer uses digital display ergometer, and the PLC display screen 12 of digital display ergometer is arranged on A slide block 4
Upper end.
Base 1 in use, is lain in a horizontal plane on the horizontal levels such as desktop by this utility model, selects one really before experiment
Fixed coefficient of friction, the A slide block 4 on moving guide rail 3 so that it is corresponding to the surface of this coefficient of friction, by ergometer 5, A slide block 4,
B slide block 7 connects on request, the position of regulation B slide block 7, makes to pull rope 6 and just tightens, and makes the reading of ergometer 5 exactly
Zero.
When measuring stiction, opening motor 8, and regulate the rotating speed of motor 8, the rotating speed making motor 8 is slow
Increase, until observing when B slide block 7 is just about to the critical state slided, writing down ergometer 5 reading now, being quiet rubbing
The size of wiping power.
Keep the coefficient of friction between B slide block 7 and friction plate assembly 2 constant, the rotating speed of regulation motor 8, make at B slide block 7
In uniform speed motion state, write down ergometer 5 reading now, be the size of kinetic force of friction.
A slide block 4 can be changed and be positioned at the position of 3 on slide rail, thus select the surface of different coefficient of frictions, control other
Experimental data is constant, and changes unitary variant therein, obtains multi-group data, averages, and improves the precision of experiment；Or protect
Hold coefficient of friction constant and increase and decrease the weight of the counterweight 11 on B slide block 7, play change unitary variant therein, obtain organizing number more
According to, average, improve the effect of the precision of experiment.
Claims (3)
1. frictional force checking assay device, it is characterised in that: include base (1), be placed on the friction plate of base upper surface
Assembly (2), slide rail (3) and the A slide block (4) matched with slide rail (3) and ergometer (5)；Slide rail (3) is fixedly mounted on the end
The side of seat (1) upper surface, A slide block (4) is slidably connected with slide rail (3)；A slide block (4) is connected with the fixing end of ergometer (5)；
The movable end of ergometer (5) has a B slide block (7) by pulling rope (6) connection, and B slide block (7) is placed on friction plate assembly (2)
Upper surface, B slide block (7) is slidably connected with friction plate assembly (2)；The upper surface of base (1) is provided with motor (8), electronic
The outfan of machine (8) connects a gear (9)；
Described friction plate assembly (2) is formed by the thin plate splicing that some skin-friction coefficients are different, and near motor (8)
The side of outfan connects has a tooth bar (10), tooth bar (10) and the gear (9) being arranged on motor (8) outfan to match
Close.
Frictional force the most according to claim 1 checking assay device, it is characterised in that: the upper surface of B slide block (7) is provided with
Groove, is placed with counterweight (11) in groove.
Frictional force the most according to claim 1 checking assay device, it is characterised in that: ergometer (5) uses digital display dynamometry
Meter, is arranged on the upper end of A slide block (4) by the PLC display screen (12) of digital display ergometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620329626.1U CN205881266U (en) | 2016-04-19 | 2016-04-19 | Test device is verified to frictional force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620329626.1U CN205881266U (en) | 2016-04-19 | 2016-04-19 | Test device is verified to frictional force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205881266U true CN205881266U (en) | 2017-01-11 |
Family
ID=57688074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620329626.1U Expired - Fee Related CN205881266U (en) | 2016-04-19 | 2016-04-19 | Test device is verified to frictional force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205881266U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749222A (en) * | 2017-12-15 | 2018-03-02 | 胡国领 | A kind of maximum static friction force demonstrator |
| CN111415555A (en) * | 2019-01-07 | 2020-07-14 | 陈晨 | Environment-friendly durable physical acceleration experimental device |
| CN112071170A (en) * | 2018-11-13 | 2020-12-11 | 施天霖 | Testing device for mechanics experiment |
| CN113436512A (en) * | 2021-07-06 | 2021-09-24 | 娄洁清 | Physical friction force experiment demonstration device |
-
2016
- 2016-04-19 CN CN201620329626.1U patent/CN205881266U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749222A (en) * | 2017-12-15 | 2018-03-02 | 胡国领 | A kind of maximum static friction force demonstrator |
| CN107749222B (en) * | 2017-12-15 | 2024-04-16 | 胡国领 | Maximum static friction force demonstration instrument |
| CN112071170A (en) * | 2018-11-13 | 2020-12-11 | 施天霖 | Testing device for mechanics experiment |
| CN111415555A (en) * | 2019-01-07 | 2020-07-14 | 陈晨 | Environment-friendly durable physical acceleration experimental device |
| CN113436512A (en) * | 2021-07-06 | 2021-09-24 | 娄洁清 | Physical friction force experiment demonstration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180419 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |