CN207867774U - A kind of angle of friction MEASUREMENT TEACHING tool - Google Patents
A kind of angle of friction MEASUREMENT TEACHING tool Download PDFInfo
- Publication number
- CN207867774U CN207867774U CN201721375663.7U CN201721375663U CN207867774U CN 207867774 U CN207867774 U CN 207867774U CN 201721375663 U CN201721375663 U CN 201721375663U CN 207867774 U CN207867774 U CN 207867774U
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- Prior art keywords
- angle
- bottom plate
- skewback
- ruler
- friction
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a kind of angle of friction MEASUREMENT TEACHING tools, belong to teaching aid technical field.The utility model includes bottom plate, skewback, angle scale and ruler, and one end of the bottom plate and skewback axis connection, the rotation of skewback opposed bottom, one end of the angle scale are set on bottom plate, which is disposed adjacent with skewback；The one side of bottom plate is carved with scale；The ruler vertical base plate setting, the ruler are slided along the length direction of bottom plate.The utility model solves the problems, such as that lacking friction angular measurement teaching aid and existing teaching aid in conventional teaching measures inconvenience, and the result that can be measured angle scale be tested, and can be used for probing into the relationship between angle of friction and rubbing surface.
Description
Technical field
The utility model is related to teaching aid technical fields, more specifically to a kind of angle of friction MEASUREMENT TEACHING tool.
Background technology
It can be obtained according to rational mechanics knowledge：It is oblique when object will just glide or can at the uniform velocity glide from coarse inclined-plane just
The inclination angle in face is known as angle of friction, and the dynamic friction factor between object and inclined-plane is can determine that if measuring this angle.
Knowledge point in relation to angle of friction often occurs in college mechanics, some models have also been made in some teachers, teaching aid exists
Carry out demonstration explanation on classroom, but effect and bad, main reason is that can not fine adjustments inclination angle of inclined plane variation, and not
The angle of inclination on easily readable inclined-plane, institute's measuring angle can not further be verified and by measuring two later by obtaining angle
Length is negated the direct relationship of angle that tangent is obtained, such as：Whether error etc. is had.The model of teacher is also inconvenient to measure difference
The angle of friction in roughness exposure face.
Through retrieval, China Patent No. ZL201420213042.9, authorized announcement date is on October 1st, 2014, innovation and creation
It is entitled：Rub angular measurement demonstrator；The friction angular measurement demonstrator of this application includes a hinged turnover device, is equipped with sliding slot
Pedestal, the hinged turning supporting seat with pedestal；One push rod device, including the rotary screw that is installed in sliding slot, with rotary screw
With the hinged nut slider that merging can be slided in sliding slot, one end is hinged with hinged nut slider, the other end and turning supporting seat are cut with scissors
The push rod connect；One is fixed on base side, the angle graduated scale for measuring turning supporting seat flip angle；It is put in turning supporting seat
A measured pieces are set, B measured pieces are placed on A measured pieces.This application is pushed to adjust and be turned over by screw rod, nut transmission and push rod
Turn the flip angle of bearing, and then is glided on A measured pieces the graduated scale reading survey of moment flip angle by observing B measured pieces
Obtain the angle of friction between two testees.But this application does not set friction angular measurement certifying organization, thus, whether the angle of reading deposits
Timely, convenient verification cannot be obtained in error, still needs to be further improved.
Invention content
1. utility model technical problems to be solved
The purpose of the utility model is to overcome existing friction angle measurement tool is inconvenient for use, institute's angle measurement cannot be verified in time
The problem of degree is with the presence or absence of error, provides a kind of angle of friction MEASUREMENT TEACHING tool；The utility model can be simple and fast survey
Measure angle of friction, and can verify measured angle of friction with it is straight come the obtained angle of tangent of negating by two length of measurement
The relationship connect, such as：Whether error etc. is had.And angle of friction educational aid provided by the utility model only needs replacing different roughness
Skewback, or on skewback pass through paste cardboard, you can the size of angle of friction is verified in the measurement for carrying out different roughness
Relationship between rubbing surface.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model is：
A kind of angle of friction MEASUREMENT TEACHING tool of the utility model, including bottom plate, skewback, angle scale and ruler, it is described
Bottom plate one end and skewback axis connection, the rotation of skewback opposed bottom, one end of the angle scale is set on bottom plate,
The angle scale is disposed adjacent with skewback；The one side of bottom plate is carved with scale；The ruler vertical base plate setting, the ruler edge
The length direction of bottom plate slides.
It is further improved as the utility model, it is separate on the bottom plate to be provided with the one end of inclined-plane board shaft even
Bearing, the bearing are connected by screw with cam, and the top of cam offers a U against skewback on the bottom plate below cam
Type groove, and rotational handle is housed on the cam.
It is further improved as the utility model, the bottom plate offers strip slot along its length, directly
One end of ruler is inserted into the strip slot, and is moved back and forth along the strip slot.
Further improved as the utility model, the side of the strip slot offers threaded hole, pass through by
Screw is inserted into the threaded hole and fixes ruler.
It is further improved as the utility model, it is close on the bottom plate to be offered with the one end of inclined-plane board shaft even
One end of locating slot, angle scale is inserted into the locating slot, and the side of locating slot offers threaded hole, by inserting the screws into the spiral shell
Fixed angles scale in pit.
It is further improved as the utility model, the bottom plate is connected through the hinge with skewback.
It is further improved as the utility model, the skewback upper surface, which delineates, sticking area.
3. advantageous effect
It is had the advantages that compared with existing known technology using technical solution provided by the utility model：
(1) a kind of angle of friction MEASUREMENT TEACHING tool of the utility model, passes through rotational handle in rotation cam, skewback energy
Enough opposed bottom rotations, as skewback rotates, the angle between skewback and bottom plate can gradually increase, when increasing to certain angle
When spending, part to be measured can slide, and can read the angle value of angle of friction by angle scale at this time, measurement that can be simple and fast
Angle of friction；
(2) a kind of angle of friction MEASUREMENT TEACHING tool of the utility model, since only there are one connect between cam and skewback
Contact, mobile ruler, when can write down part to be measured and sliding, the distance of the point to plate upper surface；The one side of bottom plate
It is carved with scale, skewback and the distance between bottom plate intersection point and ruler right side can be read by the scale on bottom panel side, such as
Angle of friction can be calculated in this, and then whether there is error between the convenient angle verified and read by angle scale；
(3) a kind of angle of friction MEASUREMENT TEACHING tool of the utility model, bottom plate are connected through the hinge with skewback, ruler
By being inserted into a strip slot, realize that the length direction along bottom plate slides, and fix by screw；Angle scale is also by insertion
In a positioning groove, fixed by screw；Cam is also to be connect with bearing by screw；Total designs easy to disassemble and group
Dress, can be very easily by replacing the skewback of different roughness, to carry out the measurement of different roughness；
(4) a kind of angle of friction MEASUREMENT TEACHING tool of the utility model, being delineated in skewback upper surface has sticking area, can
By pasting cardboard, the angle of friction of the rubbing surface for measuring different roughness on skewback；
(5) a kind of angle of friction MEASUREMENT TEACHING tool of the utility model, structure design is simple, easy to adjust, manufacturing cost
It is low, there is stronger practicability.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of angle of friction MEASUREMENT TEACHING tool of the utility model.
Label declaration in schematic diagram：
1, bottom plate；2, skewback；3, angle scale；4, ruler；5, cam；6, bearing；7, part to be measured.
Specific implementation mode
To further appreciate that the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with Fig. 1, a kind of angle of friction MEASUREMENT TEACHING tool of the present embodiment, including bottom plate 1, skewback 2,3 and of angle scale
Ruler 4.Skewback 2 is obliquely installed relative to bottom plate 1, and one end and the skewback 2 of the bottom plate 1 are connected through the hinge.Inclined-plane
2 opposed bottom 1 of plate rotates.
Close one end being connect with skewback 2 offers locating slot on bottom plate 1, and the locating slot is inserted into one end of angle scale 3
In, the side of locating slot offers threaded hole, by inserting the screws into fixed angles scale 3 in the threaded hole, the angle scale 3 with tiltedly
Panel 2 is disposed adjacent, and angle scale 3 is used to measure the angle of inclination of 2 opposed bottom 1 of skewback.
The one side being connect with angle scale 3 on bottom plate 1 is carved with scale, which offers strip along its length
One end of slot, ruler 4 is inserted into the strip slot, and is moved back and forth along the strip slot.The side of strip slot offers
Threaded hole fixes ruler 4 by inserting the screws into the threaded hole.
Separate on the bottom plate 1 that the one end of 2 axis of skewback even is provided with bearing 6, which passes through spiral shell with cam 5
Nail connection, the top of cam 5 offer a U-type groove, and on the cam 5 against skewback 2 on the bottom plate 1 of 5 lower section of cam
Equipped with rotational handle, 2 upper surface of skewback, which also delineates, sticking area.
The angle of friction MEASUREMENT TEACHING tool of the present embodiment first places it on horizontal plane when in use, and part 7 to be measured is put
It is placed on skewback 2, rotational handle in rotation cam 5, to which driving cam 5 moves.With cam 5 movement bottom plate 1 and tiltedly
Angle between panel 2 can gradually increase, and when increasing to certain angle, part 7 to be measured can slide, and stop operating at this time convex
Rotational handle on wheel 5, the screw-driving that will be connected between cam 5 and bearing 6 can read angle at this time by angle scale 3
Value.
Since only there are one contact point, mobile rulers 4 between cam 5 and skewback 2 so that ruler 4 just crosses the point, note
The lower point arrives the distance b of 1 upper surface of bottom plate, and by the scale on 1 side of bottom plate read skewback 2 and 1 intersection point of bottom plate and
The distance between 4 right side of ruler a, can be obtained angle of friction at this time is arctan (b/a), you can verification is read with by angle scale
Angle between with the presence or absence of error etc..
The angle of friction MEASUREMENT TEACHING tool of the present embodiment, the angle value of angle of friction, Ke Yijian can be read by angle scale 3
It is single efficiently to measure angle of friction, and measured angle of friction can be verified and negated obtained by tangent as measuring two length
The direct relationship of angle arrived, total design is also very easy to disassemble and assembles, and can very easily pass through and replace difference
The skewback 2 of roughness, to carry out the measurement of different roughness.
When measuring the angle of friction in differentiated friction face, by replacing the different skewback 2 of roughness or on skewback 2
The cardboard of different roughness is pasted on the sticking area that surface delineates, you can the friction of the rubbing surface for measuring different roughness
Angle.Structure design is simple, easy to adjust, and manufacturing cost is low, has stronger practicability.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in also be the utility model one of embodiment, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (7)
1. a kind of angle of friction MEASUREMENT TEACHING tool, including bottom plate (1), skewback (2) and angle scale (3), it is characterised in that：Also wrap
Ruler (4) is included, one end and skewback (2) axis connection of the bottom plate (1), skewback (2) opposed bottom (1) rotates, described
One end of angle scale (3) be set on bottom plate (1), which is disposed adjacent with skewback (2)；The side of bottom plate (1)
It is carved with scale in face；Ruler (4) vertical base plate (1) setting, the ruler (4) are slided along the length direction of bottom plate (1).
2. a kind of angle of friction MEASUREMENT TEACHING tool according to claim 1, it is characterised in that：It is remote on the bottom plate (1)
It is provided with bearing (6) from the one end of skewback (2) axis even, which is connected by screw with cam (5), cam (5)
Top offers a U-type groove against skewback (2) on the bottom plate (1) below cam (5), and equipped with turning on the cam (5)
Fixed handle.
3. a kind of angle of friction MEASUREMENT TEACHING tool according to claim 2, it is characterised in that：The bottom plate (1) is along it
Length direction offers strip slot, and one end of ruler (4) is inserted into the strip slot, and is back and forth moved along the strip slot
It is dynamic.
4. a kind of angle of friction MEASUREMENT TEACHING tool according to claim 3, it is characterised in that：The side of the strip slot
While offering threaded hole, ruler (4) is fixed by inserting the screws into the threaded hole.
5. according to a kind of angle of friction MEASUREMENT TEACHING tool of claim 1-4 any one of them, it is characterised in that：The bottom plate
(1) close on to offer locating slot with the one end of skewback (2) axis even, one end of angle scale (3) is inserted into the locating slot, positioning
The side of slot offers threaded hole, by inserting the screws into fixed angles scale (3) in the threaded hole.
6. a kind of angle of friction MEASUREMENT TEACHING tool according to claim 5, it is characterised in that：The bottom plate (1) with tiltedly
Panel (2) is connected through the hinge.
7. a kind of angle of friction MEASUREMENT TEACHING tool according to claim 6, it is characterised in that：On the skewback (2)
Surface, which delineates, sticking area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721375663.7U CN207867774U (en) | 2017-10-24 | 2017-10-24 | A kind of angle of friction MEASUREMENT TEACHING tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721375663.7U CN207867774U (en) | 2017-10-24 | 2017-10-24 | A kind of angle of friction MEASUREMENT TEACHING tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867774U true CN207867774U (en) | 2018-09-14 |
Family
ID=63474550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721375663.7U Expired - Fee Related CN207867774U (en) | 2017-10-24 | 2017-10-24 | A kind of angle of friction MEASUREMENT TEACHING tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207867774U (en) |
-
2017
- 2017-10-24 CN CN201721375663.7U patent/CN207867774U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20191024 |