CN209216383U - A kind of friction experiment device - Google Patents
A kind of friction experiment device Download PDFInfo
- Publication number
- CN209216383U CN209216383U CN201821499052.8U CN201821499052U CN209216383U CN 209216383 U CN209216383 U CN 209216383U CN 201821499052 U CN201821499052 U CN 201821499052U CN 209216383 U CN209216383 U CN 209216383U
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- Prior art keywords
- tension measurement
- sliding block
- slide plate
- magnetic stripe
- measurement box
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Abstract
The utility model relates to a kind of friction experiment devices, the device includes cabinet, electronics tension measurement box, slide plate and sliding block, track is equipped in the cabinet, track includes two conveyer belts and two support rods, two support rods are fixed on cabinet wall and are disposed in parallel relation to one another, support rod both ends are rotatably connected to gear, motor is equipped in support rod, two conveyer belts are connected on the gear at two support rod both ends, the slide plate is detachably mounted between two support rods, electronics tension measurement box is detachably secured on two conveyer belts, electronics tension measurement box one end is equipped with drag hook, side is equipped with display screen, sliding block one end is equipped with the pull ring cooperated with drag hook, sliding block is slidably connected on slide plate, motor rotation can be moved with moving gear and conveyer belt, and then sliding block sliding is pulled by electronics tension measurement box, display screen can show the pulling force of drag hook, The device can be easily accomplished frictional force experiment and measurement result is accurate.
Description
Technical field
The utility model relates to a kind of friction experiment devices, belong to Physical Experiment equipment technical field.
Background technique
During junior physics teaching, teacher often only payes attention to the explanation of formula theorem topic, is unfavorable for exciting in this way
The learning interest of student reduces learning effect.
Frictional force is that Middle School Physics must learn course, when measuring frictional force needs to make in the horizontal direction of weight beam
Linear uniform motion, but due to being not easy to read when manual operation, cause classroom experiment result inaccurate, experimental period is too long etc.
Problem influences classroom progress or the direct courseware analog demenstration of teacher, cannot all play good learning effect.
Utility model content
In order to solve the problems in the existing technology the utility model, provides a kind of easy to operate, be easy to read rubs
Wipe power experimental provision.
In order to achieve the above object, the utility model proposes technical solution are as follows: a kind of friction experiment device, including case
Body, electronics tension measurement box, slide plate and sliding block, the cabinet is interior to be equipped with track, and the track includes two conveyer belts and two supports
Bar, two support rods are fixed on cabinet wall and are disposed in parallel relation to one another, and support rod both ends are rotatably connected to gear, set in support rod
There is motor, two conveyer belts are connected on the gear at two support rod both ends, and the slide plate is detachably mounted to two support rods
Between, electronics tension measurement box is detachably secured on two conveyer belts, and electronics tension measurement box one end is equipped with drag hook, and side is equipped with
Display screen, sliding block one end are equipped with the pull ring that cooperate with drag hook, and sliding block is slidably connected on slide plate, motor rotation can with moving gear with
Conveyer belt movement, and then sliding block sliding is pulled by electronics tension measurement box, display screen can show the pulling force that drag hook is subject to.
Be further designed to above-mentioned technical proposal: the cabinet is transparent cabinet, and top is equipped with opening.
The opposite side of two support rods is equipped with magnetic stripe, and slide plate both ends are equipped with the magnetic stripe matched with magnetic stripe on support rod, sliding
Plate is bonded between two support rods by magnetic stripe.
The conveyer belt is equipped with groove, is equipped with magnetic stripe in groove, the electronics tension measurement cassette bottom portion both ends be equipped with
The convex block of groove cooperation, convex block are equipped with the magnetic stripe matched with magnetic stripe in groove, and the electronics tension measurement box passes through magnetic stripe
With being fitted and fixed on two conveyer belts for groove and convex block.
Electronic tension meter is fixed in electronics tension measurement box, the drag hook of electronic tension meter stretches out electronics tension measurement box box
Body one end.
It is set in cabinet there are two track, a track is horizontally disposed with, and another track is obliquely installed.
The utility model has the following beneficial effects:
It drives tensiometer and sliding block to slide using motor in the utility model, can accurately realize linear uniform motion, measure
As a result accurate.
The utility model middle slide plate and sliding block are fixed by magnetic stripe, dismantle, is easy to assembly, and being convenient for changing differentiated friction
The slide plate of power, strong applicability.
The reading of electronic tension meter can be shown by display screen in the utility model, can easily be read through transparent cabinet
Number.
Detailed description of the invention
Fig. 1 is the box structure diagram of the present embodiment.
Fig. 2 is Fig. 1 middle orbit structural schematic diagram.
Fig. 3 is track use state diagram.
Fig. 4 is electronics tension measurement box structure schematic diagram.
Fig. 5 is the left view of Fig. 2.
Fig. 6 is skateboard schematic diagram.
Fig. 7 is slide block structure schematic diagram.
Fig. 8 is driving circuit figure in the present embodiment.
Specific embodiment
With reference to the accompanying drawing and the utility model is described in detail in specific embodiment.
Embodiment
A kind of friction experiment device of the present embodiment includes cabinet, electronics tension measurement case, slide plate and sliding block.The case
For body structure as shown in Figure 1, being surrounded by transparent plastic sheet 2, top is equipped with opening, and opening is equipped with lid 1, is equipped with two in cabinet
Track, one horizontally disposed, and another is obliquely installed, and every track structure is as shown in Figures 2 and 3, includes two conveyer belts, 3 He
Two cylindrical support rods 5, support rod 5 is interior to be equipped with motor 6, and 5 both ends of support rod are rotatably connected to gear 7, and gear 7 and motor 6 are defeated
Outlet connection, two support rods 5 are fixed on tank ends inner wall, and conveyer belt 3 is connected on the gear 7 of two support rods 5, form item
The track of shape, conveyer belt 3 are equipped with the groove 31 of bar shaped, and groove 31 is embedded with magnetic stripe 4, and the opposite side of two support rods 5 is also set
There is magnetic stripe 4.
As shown in Figure 4 and Figure 5,20 bottom both ends of electronics tension measurement case are convex equipped with cooperating with 3 upper groove 31 of conveyer belt
Block, two convex block spacing and two conveyer belts, 3 upper groove pitch match, convex block are equipped with the magnetic stripe 12 cooperated with magnetic stripe in groove, electricity
Electronic tension meter is fixed in sub- tension measurement case 20, the drag hook 11 of electronic tension meter passes through the case of electronics tension measurement case one end
Body, electronics tension measurement case side are equipped with display screen 13, and display screen 13 is electrically connected with electronic tension meter, can show electronic tension meter
Reading.
As shown in fig. 6, the present embodiment is equipped with three slide plates 14,15 and 16 that size is identical, frictional force is different, slide plate both ends
It is equipped with the magnetic stripe 12 matched with the magnetic stripe 4 on support rod 5.
As shown in fig. 7, the present embodiment is set there are two sliding block 17 and 18, sliding block one end middle part is equipped with pull ring 19, two sliding blocks
Of different size, quality is different, but length is identical with height, and material and degree of roughness are identical, it can be ensured that the pull ring of two sliding blocks is located at
Sustained height, and and drag hook in same level.
As shown in figure 8, the driving circuit of the present embodiment device is set in cabinet, including power supply, resistance R1, R2, R3 are opened
Pass 8,9,10 and motor, switch 8,9,10 are set on cabinet exterior, and motor 6 is located in support rod 5, resistance R1, R2, R3 difference
It is connected in parallel on motor both ends, the corresponding power supply of R3 and R1, R2 corresponding power reverse phase after connecting with a switch, then the controllable electricity of R1, R2
Machine rotates forward and revolving speed is different, and R3 can control motor reversal.
The device of the present embodiment using when cabinet lid 1 removed, with the magnetic on the magnetic stripe 12 and support rod 5 at slide plate both ends
Item 4 is bonded, and is fixed on slide plate between two support rods 5, forms slideway.Electronics tension measurement box 20 is passed through to the magnetic stripe 12 of bottom
It is Nian Jie with the magnetic stripe 4 on conveyer belt 3, keep convex block chimeric with groove 31, electronics tension measurement box 20 is fixed on a moving belt.Then
Tension measurement case 20 is driven into motor reversal by velocity reversal's switch 10, a side support bar 5 is disposed adjacent to, a sliding block is placed
In on slide plate, sliding block is located between tension measurement case 20 and the side support bar 5, and electronics tension measurement case hook 11 is drawn with sliding block
Ring 19 connects, and hook 11 is highly consistent with the height of pull ring 19 at the center of box body one end, guarantees object block Impact direction and slideway
In parallel.8 or 9 are turned on the switch, motor drives electronics tension measurement case and sliding block does linear uniform motion, and electronic tension meter is used to survey
The pulling force provided sliding block is measured, pulling force size is shown on display screen 13, reading can be read through transparent cabinet, pulling force size is
For frictional force size.
When using inclined plane, 20 initial position of tension measurement case is disposed adjacent to 5 side of bottom support rod, sliding block position
Between tension measurement case 20 and bottom support rod 5.
The achievable Physical Experiment of the present embodiment device is as follows:
(1) size of frictional force may be related with the area of contact surface
The horizontal slide formed using any slide plate is measured the contact of sliding block a front surface and a side surface with same forward direction speed respectively and slided
Frictional force size when plate.
(2) size of frictional force may be related with the degree of roughness of contact surface
It is same with the same sliding block of same forward direction speed when measuring the horizontal slide of slide plate composition of three kinds of degree of roughness respectively
One face friction size.
(3) size of frictional force may be related with the speed of speed of moving body
The horizontal slide formed using any slide plate, measures same sliding block the same face rubbing under speed switch 8 and 9 respectively
Wipe power size.
(4) size of frictional force may be related with contact surface pressure size
The level and inclined ramp that the same surface of same sliding block is formed with identical speed in same slide plate are measured respectively
The size of upper friction.
The technical solution of the utility model is not limited to the various embodiments described above, all technologies obtained using equivalent replacement mode
Scheme is all fallen in the range of the requires of the utility model protection.
Claims (6)
1. a kind of friction experiment device, it is characterised in that: including cabinet, electronics tension measurement box, slide plate and sliding block, the case
In vivo be equipped with track, the track include two conveyer belts and two support rods, two support rods be fixed on cabinet wall and mutually it is equal
Row setting, support rod both ends are rotatably connected to gear, are equipped with motor in support rod, two conveyer belts are connected to two support rods two
On the gear at end, the slide plate is detachably mounted between two support rods, and electronics tension measurement box is detachably secured to two biographies
It send and takes, electronics tension measurement box one end is equipped with drag hook, and side is equipped with display screen, and sliding block one end is equipped with the drawing cooperated with drag hook
Ring, sliding block are slidably connected on slide plate, and motor rotation can be moved with moving gear and conveyer belt, and then pass through electronics tension measurement box
Sliding block sliding is pulled, display screen can show the pulling force that drag hook is subject to.
2. friction experiment device according to claim 1, it is characterised in that: the cabinet is transparent cabinet, and top is equipped with
Opening.
3. friction experiment device according to claim 1, it is characterised in that: the opposite side of two support rods is equipped with magnetic stripe,
Slide plate both ends are equipped with the magnetic stripe matched with magnetic stripe on support rod, and slide plate is bonded between two support rods by magnetic stripe.
4. friction experiment device according to claim 1, it is characterised in that: the conveyer belt is equipped with groove, in groove
Equipped with magnetic stripe, the electronics tension measurement cassette bottom portion both ends are equipped with the convex block cooperated with groove, and convex block is equipped with and magnetic in groove
The magnetic stripe that item matches, the electronics tension measurement box are fitted and fixed on two conveyer belts by magnetic stripe and groove and convex block.
5. friction experiment device according to claim 1, it is characterised in that: be fixed with electronics drawing in electronics tension measurement box
The drag hook of power meter, electronic tension meter stretches out electronics tension measurement box box body one end.
6. friction experiment device according to claim 1, it is characterised in that: track there are two being set in cabinet, a track water
Flat setting, another track are obliquely installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499052.8U CN209216383U (en) | 2018-09-13 | 2018-09-13 | A kind of friction experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821499052.8U CN209216383U (en) | 2018-09-13 | 2018-09-13 | A kind of friction experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209216383U true CN209216383U (en) | 2019-08-06 |
Family
ID=67454017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821499052.8U Active CN209216383U (en) | 2018-09-13 | 2018-09-13 | A kind of friction experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209216383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113129709A (en) * | 2020-01-15 | 2021-07-16 | 深圳市跨一科技有限公司 | Physical experiment mechanics slider |
-
2018
- 2018-09-13 CN CN201821499052.8U patent/CN209216383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113129709A (en) * | 2020-01-15 | 2021-07-16 | 深圳市跨一科技有限公司 | Physical experiment mechanics slider |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211011 Address after: Room 202-3, comprehensive service building, Jiangsu Membrane Technology Industrial Park, No. 1, industrial technology research and Innovation Park, Jiangbei new area, Nanjing, Jiangsu 210000 Patentee after: Nanjing Rifford Membrane Technology Co.,Ltd. Address before: 210044 No. 219 Ning six road, Jiangbei new district, Nanjing, Jiangsu Patentee before: NANJING University OF INFORMATION SCIENCE & TECHNOLOGY |