CN108162645A - Multifunctional mathematics teaching ruler - Google Patents
Multifunctional mathematics teaching ruler Download PDFInfo
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- CN108162645A CN108162645A CN201810150493.5A CN201810150493A CN108162645A CN 108162645 A CN108162645 A CN 108162645A CN 201810150493 A CN201810150493 A CN 201810150493A CN 108162645 A CN108162645 A CN 108162645A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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Abstract
The invention discloses a kind of Multifunctional mathematics teaching rulers, it includes locating support, the top of locating support is equipped with laser support, the bottom of laser support is equipped with several laser emitting modules, stable rotation geometry stacking apparatus is installed in the middle part of locating support, stablize rotation geometry stacking apparatus and include fixed frame, the lower part of fixed frame is connect with adjusting nut.The present invention is combined by stablizing rotation geometry stacking apparatus with angle rotational positioning plotter, and reference line can be formed on drawing and greatly improves graphic plotting precision；The light-transmitting plate with light tight geometric figure bar is emitted laser with laser module to be combined, light tight geometric figure bar can block the light for emitting laser from laser module and passing through light-transmitting plate, so as to project on drawing, form geometric figure corresponding with light tight geometric figure bar, so there is no need to the draftings of teacher's craft drawing, with regard to the geometric figure of standard can be formed on drawing, facilitate Mapping Reference.The present invention is suitable for teaching and draws.
Description
Technical field
The invention belongs to instruments used for education fields, are related to a kind of teaching apparatus for mathematics, more precisely, being a kind of multi-functional number
Learn teaching ruler.
Background technology
In mathematics several teaching, teacher generally requires the manual drawing geometric figures on drawing, due to most of geometry
Figure does not have a corresponding writing on the blackboard template, and teacher's manual drawing often inadequate specification causes geometric figure and the anticipation of manual drawing
Size shape have difference, influence the understanding to figure.And the geometric figure position angle drawn on drawing by hand is opposite
It is fixed, when identical figure for needing different angle need to wipe it is original repaint, it is cumbersome.Drawing tool is for auxiliary
Help the common tool that straight line or curve are drawn on drawing, existing drawing rule only simply strip platy structure, in reality
In the drawing course of border, drawing personnel, which generally require firmly to tightly suppress ruler, can make the graduated edge of ruler band be close to paper
, pen tip is avoided to enter the gap of ruler and paper, straight line is avoided to be bent.This method causes high effort for, and needs one
Fixed skill, careless manipulation will influence draught smanship.
Invention content
The purpose of the present invention is to provide for a kind of Multifunctional mathematics teaching ruler, to solve present in the prior art
The above problem.
To achieve the above object, used technical solution is as follows by the present invention：
A kind of Multifunctional mathematics teaching ruler, it includes locating support, and the top of locating support is equipped with laser support, laser
The bottom of stent is equipped with several laser emitting modules, and stable rotation geometry stacking apparatus is equipped in the middle part of locating support；Institute
It states stable rotation geometry stacking apparatus and includes fixed frame, there are two upper large size bearing, two upper large sizes for the top connection of fixed frame
The central shaft of bearing is conllinear, and the outer ring of large size bearing is connect with fixed frame, inner ring connection friend's spring clip of large size bearing, spring clip
On be provided with light-transmitting plate, be connected with light tight geometric figure bar on light-transmitting plate, the angled rotation of lower part installation of locating support is fixed
Position plotter, the angle rotational positioning plotter include pressing plate, and the side of pressing plate is connect with locating support, and the side of pressing plate connects
It connects there are two positioning column, two positioning columns are mutually parallel, and one end of positioning column is connect with pressing plate, is hinged between two positioning columns
Special type ruler, the both sides of special type ruler are column articulated with two positioning respectively, and special type ruler can be freely rotated, and special type ruler includes the first ruler
With the second ruler, there is angle between the first ruler and the second ruler, angle is obtuse angle, and the hinge joint of special type ruler and positioning column is located at
First ruler and the second ruler junction are provided with vertical ruler and rebound on the positioning column, and the band of vertical ruler is graduated
Vertical when graduated with special type tape, side and the special type ruler side graduated side of band of rebound are in same straight line
On, the side of rebound is bonded with special type ruler, and the side of the pressing plate is connected with guide rod, and the both ends of guide rod connect with pressing plate
It connects, sliding tube is cased on guide rod, sliding tube can slide on the guide bar, and the side of sliding tube is connected with slip ruler, slides ruler
With it is graduated when graduated with vertical ruler band it is parallel.
As restriction:First ruler and the graduated side side of the second ruler band are connected with light-strip, light-strip
End is connected with LED light.
It is limited as another kind, pulley is installed on the pressing plate, shaft and the pressing plate of pulley are hinged, and pulley can press
It is freely rotated on plate, high strength fibre rope is connected on sliding tube, one end and the sliding tube of high strength fibre rope coordinate, high intensity
The middle part of cordage bypasses the race of pulley, and the other end of high strength fibre rope is connected with spring, and one end and the pressing plate of spring connect
It connects, slides and spring clip is installed on ruler, drawing pen is installed on spring clip.
It is limited as further, the high strength fibre rope is made of high strength glass fiber, the high strength glass
The component of fiber includes by weight：55.0~59.0 parts of SiO2, 19.0~23.0 parts of Al2O3, 2~3.8 parts of MgO, 14.0~
16.0 parts of CaO, 2.8~3.0 parts of SrF2, 0.2~0.3 part of TiF4, 0.1~0.15 part of ZnMoO4, 0.01~0.5 part of Na2S2, by glass
Glass fibrous raw material at 1400~1500 DEG C, is melted while stirring in the platinum material crucible, is melted 8 hours, melting
Glass be put into fiber drawing furnace, it is remelted at 1430~1450 DEG C, melten glass by platinum bushing plate let slip a remark be drawn into it is straight
Diameter is 5~13 μm of continuous fibers, is directly immersed in 0 DEG C of mixture of ice and water from the glass fibre for output of leting slip a remark, and obtains finished product.
The locating support is made of alloy wear-resisting steel, the constituent content in the alloy abrasion resistant steel parts by weight per hundred
It is:
Carbon：0~0.05 part；
Nitrogen：0~0.05 part；
Manganese：7.2~8 parts；
Silicon：0~1 part；
Chromium：20~21 parts；
Nickel：4~5 parts；
Vanadium：6.2~8.5 parts；
Yttrium carbide：2.3~3.5 parts；
Ytterbium carbide：1.2~2.4 parts；
Surplus is iron.
As a result of above-mentioned technical solution, compared with prior art, the present invention acquired technological progress is：
The present invention is combined by stablizing rotation geometry stacking apparatus with angle rotational positioning plotter, can either be in drawing
Upper formation reference line can greatly improve graphic plotting precision simultaneously；
Light-transmitting plate with light tight geometric figure bar is emitted laser with laser module and is combined by the present invention, light tight
Geometric figure bar can block the light for emitting laser from laser module and passing through light-transmitting plate, so as to project on drawing, shape
Into geometric figure corresponding with light tight geometric figure bar, drawn without teacher's craft drawing, it will be able to the shape on drawing
Into the geometric figure of standard, facilitate carry out Mapping Reference.When the geometric figure for needing different angle, large size bearing can be rotated
So as to stablize rotation along the central shaft of large size bearing to the light tight geometric figure bar on light-transmitting plate, without repainting just
It can obtain geometric figure of the different angle simultaneously with original identical shape size；
Present invention tool there are two upper large size bearing, while the inner ring of large size bearing be can with the light-transmitting plate of transmitted light,
So as to when installing different light tight geometric figure bars on different light-transmitting plates, it will be able to realize that formation is different several on drawing
The image superposition of what figure, so as to using the intercombination of different geometric figures, facilitate and draw different figures.After being superimposed simultaneously
Geometric figure can utilize the respective independent rotation angle of large size bearing, so as to form the geometric figure of different angle combination；
Circular scale on the outside of the inner ring of the large size bearing of the present invention is set, indicator marker is set on light-transmitting plate, in light-transmitting plate
Indicator marker can be combined the accurate angle for indicating light-transmitting plate rotation with circular scale during rotation angle；
The rotational positioning plotter of the present invention increases the branch of ruler that positioning column and pressing plate are formed on the basis of ruler
Frame, pressing plate can facilitate making drawing personnel to be pushed down when drawing with arm, since arm presses the strength of desktop compared to hand greatly simultaneously
And under natural conditions the arm of drawing personnel can also push down desktop without additionally firmly and skill, with regard to that can be close to special type ruler
Paper so as to which pen tip be avoided to enter the gap of ruler and paper, avoids straight line from being bent；
Have angle between the first ruler and the second ruler of the present invention, angle is obtuse angle, can make the middle part of special type ruler to
Upper protrusion, the gap of ruler and paper caused by avoiding special type ruler middle part too low is excessive, draws what is realized so as to further improve
Quality.The both sides of special type ruler, which are hinged positioning column, simultaneously can be rotated special type ruler shape of plane according to where paper, be made
Special type ruler is more bonded with paper, further improves the rendering quality of drawing；
The side of the rebound of the present invention is in the special type ruler side graduated side of band on same straight line, and the one of rebound
Side is bonded with special type ruler, and vertical ruler, rebound and the second ruler can be made to form a right-angle structure in neat formation, convenient for users to
Draw right angle；
Sliding tube and the guide rod cooperation of the present invention, can facilitate and slide the slip of ruler level, due to sliding tube and guide rod
Mating surface is larger, and slip ruler can be made to keep the parastate with vertical ruler, so as to convenient for users to times in a certain range
Get vertical line in meaning position.
The present invention also has the advantages of compact structure, low manufacturing cost and easy to use, and draws suitable for teaching.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Example is applied together for explaining the present invention, is not construed as limiting the invention.
In the accompanying drawings：
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is the A of Fig. 1 to enlarged structure schematic diagram；
Fig. 3 is section view enlarged structure schematic diagrams of the Fig. 2 along line A-A；
Fig. 4 is with the variation chart of the increase fiber tensile strength of cesium fluoride content；
Fig. 5 is be added to glass fibre when the glass fibre of SrF2 ingredients and the content of SrF2 are 2.8~3.0wt% aobvious
Micro-structure enlarged drawing；
Fig. 6 is to be not added with the glass fibre of SrF2 ingredients or the SrF2 addition non-2.8~3.0wt% interval ranges of content
When glass fibre microstructure enlarged drawing.
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein
It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment Multifunctional mathematics teaching ruler
With reference to figure 1- Fig. 6, the present embodiment includes locating support 20, and the top installation laser support 65 of locating support 20 swashs
The bottom of light stent 65 is installed by several laser emitting modules 56, the middle part installation stable rotation geometry superposition of locating support 20
Device includes fixed frame 51, and the top of fixed frame 51 connects two upper large size bearings 52, the central shaft of two upper large size bearings 52
Collinearly, the outer ring of large size bearing 52 is connect with fixed frame 51, the inner ring connecting spring folder 53 of large size bearing 52, is set on spring clip 53
Light-transmitting plate 54 is put, light tight geometric figure bar 64, the lower part setting angle rotational positioning of locating support 20 are connected on light-transmitting plate 54
Plotter, the angle rotational positioning plotter include pressing plate 10, and the side of pressing plate 10 is connect with locating support 20, pressing plate 10
Side connects two positioning columns 1, and two positioning columns 1 are mutually parallel, and one end of positioning column 1 is connect with pressing plate 10, two positioning columns 1
Between hinged special type ruler, the both sides of special type ruler are hinged with two positioning columns 1 respectively, and special type ruler can be freely rotated, special type ruler packet
The first ruler 3 and the second ruler 4 are included, there is angle between the first ruler 3 and the second ruler 4, angle is obtuse angle, special type ruler and positioning
The hinge joint of column 1 is located at 4 junction of the first ruler 3 and the second ruler, and vertical ruler 6 and rebound 12 are set on the positioning column 1,
The band of vertical ruler 6 is graduated vertical when graduated with special type tape, and side and the special type ruler side of rebound 12 carry
The side of scale is on same straight line, and the side of rebound 12 is bonded with special type ruler, the side connection guide rod of the pressing plate 10
9, the both ends of guide rod 9 are connect with pressing plate 10, and sliding tube 8 is cased on guide rod 9, and sliding tube 8 can slide on guide rod 9,
Sliding tube 8 side connection slide ruler 7, slide ruler 7 with it is graduated while with vertical ruler 6 with it is graduated while it is parallel.
The present embodiment is combined and can either scheme with angle rotational positioning plotter by stablizing rotation geometry stacking apparatus
Reference line is formed on paper can greatly improve graphic plotting precision simultaneously.The present embodiment will be with light tight geometric figure bar 64
Light-transmitting plate 54 is combined with major light 56, and light tight geometric figure bar 64 can be blocked passes through light-transmitting plate 54 from major light 56
Light, so as to project on drawing, formation and light tight 64 corresponding geometric figure of geometric figure bar, without teacher's craft
Drawing is drawn, it will be able to the geometric figure of standard is formed on drawing, facilitates carry out Mapping Reference.When needing the several of different angle
During what figure, can rotate large size bearing 52 so as to the light tight geometric figure bar 64 on light-transmitting plate 54 along large size bearing 52
Central shaft stablizes rotation, without repainting the geometry that can just obtain different angle simultaneously with original identical shape size
Figure.The present embodiment tool there are two upper large size bearing 52, while the inner ring of large size bearing 52 be can be with the light transmission of transmitted light
Plate 54, so as to when installing different light tight geometric figure bars 64 on different light-transmitting plates 54, it will be able to realize on drawing
The image superposition of different geometric figures is formed, so as to using the intercombination of different geometric figures, facilitate and draw different figures.
Geometric figure after being superimposed simultaneously can utilize the respectively independent rotation angle of large size bearing 52, so as to form different angle combination
Geometric figure.Circular scale on the outside of the inner ring of the large size bearing 52 of the present embodiment is set, indicator marker is set on light-transmitting plate 54,
Indicator marker can be combined the accurate angle for indicating the rotation of light-transmitting plate 54 with circular scale during 54 rotation angle of light-transmitting plate.This implementation
The rotational positioning plotter of example increases the stent of ruler that positioning column 1 and pressing plate 10 are formed, pressing plate 10 on the basis of ruler
Making drawing personnel can be facilitated to be pushed down when drawing with arm, since the strength of arm pressure desktop is big compared to hand and natural shape
Under state the arm of drawing personnel can also push down desktop without additionally firmly and skill, with regard to special type ruler can be made to be close to paper, from
And pen tip is avoided to enter the gap of ruler and paper, straight line is avoided to be bent.First ruler 3 of the present embodiment and the second ruler
There is angle between 4, angle is obtuse angle, can make to raise up in the middle part of special type ruler, ruler caused by avoiding special type ruler middle part too low
Son is excessive with the gap of paper, so as to further improve the quality drawn and realized.Simultaneously special type ruler both sides be hinged positioning column 1 can
So that special type ruler shape of plane according to where paper is rotated, special type ruler is made more to be bonded with paper, further improves figure
The rendering quality of paper.The side of the rebound 12 of the present embodiment is in the special type ruler side graduated side of band on same straight line,
The side of rebound 12 is bonded with special type ruler, can make vertical ruler 6,12 and second ruler 4 of rebound formed one it is in neat formation straight
Corner structure, convenient for users to drawing right angle.The sliding tube 8 and guide rod 9 of the present embodiment coordinate, and can facilitate and slide 7 level of ruler
It slides, since sliding tube 8 and 9 mating surface of guide rod are larger, slip ruler 7 can be made to keep the parastate with vertical ruler 6, so as to
Vertical line is got convenient for users to any position in a certain range.
First ruler 3 connects light-strip 5, the end connection of light-strip 5 with the second ruler 4 with graduated side side
LED light 2.
The light that the LED light 2 of the present embodiment is sent out can enter light-strip 5, and the light that light-strip 5 can send out LED light 2 plays
Disperse function, due to light-strip 5 against the first ruler 3 and the second ruler 4 with graduated side, light-strip 5 can be to setting-out area
Domain carries out local lighting, and the straight line that drawing personnel draw is enable clearly to show, so as to facilitate drawing personnel in real time to drawing
It is calibrated between going out.
Pulley 30 is installed, the shaft of pulley 30 is hinged with pressing plate 10, and pulley 30 can be on pressing plate 10 on the pressing plate 10
It is freely rotated, high strength fibre rope 31 is connected on sliding tube 8, one end and the sliding tube 8 of high strength fibre rope 31 coordinate, high intensity
The middle part of cordage 31 bypasses the race of pulley 30, the other end connecting spring 32 of high strength fibre rope 31, one end of spring 32
It is connect with pressing plate 10, slides and spring clip 16 is installed on ruler 7, drawing pen 17 is installed on spring clip 16.
The spring 32 of the present embodiment can drive high strength fibre rope 31 to pull drawing pen 17 is horizontal to slide by elastic force,
So as to which rapid drawing makes clear straight straight line on drawing, avoid in drawing course due to caused by shake and operating error
Figure line draws error.
The high strength fibre rope 31 is made of high strength glass fiber, and the component of high strength glass fiber has used following table
In several group formulas：
The present embodiment increases unique SrF on the basis of traditional fiberglass component is formed2Ingredient, we pass through
Repetition test, in SrF2Ingredient excessively and when very few can not significantly improve the tensile strength of glass fibre in itself, in glass
Glass fibre fractionation SiO2、Al2O3, MgO, CaO it is identical in the case of, we are by SrF2Ingredient is gradually incremented by by relatively low 1%
To before 2.8%, the tensile strength of glass fibre is fluctuated within normal range (NR), is had no and is significantly improved, and works as SrF2Ingredient
When increasing to 2.8%, significantly rising to occurs in the tensile strength of glass fibre, we will mix SrF2The fiber of ingredient is not with mixing
SrF2The fibre section of ingredient has carried out micro- amplification and has found, is added to SrF as shown in Figure 3 and Figure 42The glass fibre of ingredient and
SrF2Content when being 2.8~3.0wt% compared to being not added with SrF2The glass fibre and SrF of ingredient2The different glass of content
Fiber, structure is even closer, and the gap of appearance significantly reduces, and is commonly not added with SrF2The tensile strength of the glass fibre of ingredient
Generally between 37~43KMpa, the component of our uses, intensity is stirred near 43KMpa, and adds SrF2The glass of ingredient
Fiber and SrF2Content when being 2.8~3.0wt%, rising to occurs in the tensile strength of glass fibre, reached 53~
58.3KMpa works as SrF2Content to reach peak value when being 2.9wt% be 58.3KMpa.Use the present embodiment fiberglass component system
Into glass fibre, intensity improve more than 30%, in molecules experimentation, hence it is evident that reduce glass fibre fracture it is several
Rate improves experiment success rate, reduces experimental cost, reduces experimental period.
The glass fibre its with the also TiF containing 0.2~0.3wt% in constituent4。
We have found by further experiment, in the TiF for adding in 0.2~0.3wt%4Afterwards, it adds in and is added to SrF2Ingredient
Glass fibre and SrF2Content be 2.8~3.0wt% when, the tensile strength of glass fibre is made to more easily reach high numerical value,
Easily enter in the range of 56.8~58.3KMpa.Further depth analysis, one side Ti ingredients have the intensity of glass fibre
Improved, another aspect TiF4Addition increase the contents of F elements in glass fibre, so as to supplement glass fibre raw material
The F elements of evaporating loss during melting.Glass fibre is made to more easily reach high intensity.
The glass fibre its with the also ZnMoO containing 0.1~0.15wt% in constituent4。
We in addition by it has furthermore been found that be added to SrF2The glass fibre and SrF of ingredient2Content for 2.8~
During 3.0wt%, while increase by the ZnMoO of 0.1~0.2wt%4Manufactured glass fibre finished product is compared to common glass fibre
At 700~800 DEG C, tensile resistance has obtained certain raising, compared to simple glass fiber, tension at 700~800 DEG C
It stretches intensity and improves 1.1~1.7% or so, make glass fibre that there is preferable high temperature resistance.
Glass fibre its with the also Na containing 0.01~0.5wt% in constituent2S2。
We have found after further research, and SrF is added in addition2The glass fibre and SrF of ingredient2Content be 2.8
During~3.0wt%, while increase by the Na of 0.01~0.5wt%2S2Manufactured glass finished-product compared to be not added with Na2S2 glass into
Product peak value is increased to 58.93KMpa, Na2S2With SrF2Make glass fiber strength peak value is made with reference to after and be improved, this point pair
It is extremely important in the further improved research of glass fiber strength, it there is no Na at present2S2The existing literature improved for fibre strength
Record.
It by glass fibre raw material in platinum material crucible, at 1400~1500 DEG C, melts while stirring, is melted 8
Hour, the glass melted is put into fiber drawing furnace, remelted at 1430~1450 DEG C, melten glass passes through platinum bushing plate
It lets slip a remark and is drawn into a diameter of 5~13 μm of continuous fibers, 0 DEG C of mixture of ice and water is directly immersed in from the glass fibre for output of leting slip a remark
In, obtain finished product.
As shown in table 4, raising doping strontium fluoride (SrF of the part with fluorination content of strontium is we provided2) glass fibre
The value of tensile strength (KMPa), works as SrF2Content fiber tensile strength during 0~2.8% is dialled near 43KMpa
It is dynamic, and work as SrF2Fiber tensile strength rises to suddenly when content increases to more than 2.8, and peak value has been reached between 2.8~3%
58.3KMpa is further increased, and is back to 43KMpa and is nearby stirred.
Table 4 is with the raising doping strontium fluoride (SrF of fluorination content of strontium2) glass fibre tensile strength (KMPa) table
Locating support 2) made of alloy wear-resisting steel, the group in the present embodiment in alloy wear-resisting steel parts by weight per hundred
Point content employs the formula in following table:
During 3.0wt%, while increase by the ZnMoO of 0.1~0.2wt%4Manufactured glass fibre finished product is compared to common
For glass fibre at 700~800 DEG C, tensile resistance has obtained certain raising, compared to simple glass fiber, 700~800
DEG C when tensile strength improve 1.1~1.7% or so, make glass fibre have preferable high temperature resistance.
Glass fibre its with the also Na containing 0.01~0.5wt% in constituent2S2。
We have found after further research, and SrF is added in addition2The glass fibre and SrF of ingredient2Content be 2.8
During~3.0wt%, while increase by the Na of 0.01~0.5wt%2S2Manufactured glass finished-product compared to be not added with Na2S2 glass into
Product peak value is increased to 58.93KMpa, Na2S2With SrF2Make glass fiber strength peak value is made with reference to after and be improved, this point pair
It is extremely important in the further improved research of glass fiber strength, it there is no Na at present2S2The existing literature improved for fibre strength
Record.
It by glass fibre raw material in platinum material crucible, at 1400~1500 DEG C, melts while stirring, is melted 8
Hour, the glass melted is put into fiber drawing furnace, remelted at 1430~1450 DEG C, melten glass passes through platinum bushing plate
It lets slip a remark and is drawn into a diameter of 5~13 μm of continuous fibers, 0 DEG C of mixture of ice and water is directly immersed in from the glass fibre for output of leting slip a remark
In, obtain finished product.
As shown in table 4, raising doping strontium fluoride (SrF of the part with fluorination content of strontium is we provided2) glass fibre
The value of tensile strength (KMPa), when SrF2 contents, fiber tensile strength is dialled near 43KMpa during 0~2.8%
It is dynamic, and work as SrF2Fiber tensile strength rises to suddenly when content increases to more than 2.8, and peak value has been reached between 2.8~3%
58.3KMpa is further increased, and is back to 43KMpa and is nearby stirred.
Table 4 is with the raising doping strontium fluoride (SrF of fluorination content of strontium2) glass fibre tensile strength (KMPa) table
Locating support 2) made of alloy wear-resisting steel, the group in the present embodiment in alloy wear-resisting steel parts by weight per hundred
Point content employs the formula in following table:
In carbon：0~0.05%；Nitrogen：0~0.05%；Manganese：7.2~8%；Silicon：0~1%；Chromium：20~21%；Nickel：4~
5%；Vanadium：6.2~8.5%；In the case that content is identical, only adds in ytterbium carbide and alloy abrasion resistant steel material intensity effect percentage is shown in
Table 2：
| Ytterbium carbide content | 1% | 1.2% | 2% | 2.4% | 2.5% |
| Alloy wear-resisting steel strength enhancing percentage | 0.9% | 1.3% | 1.5% | 1.4% | 0.7% |
In carbon：0~0.05%；Nitrogen：0~0.05%；Manganese：7.2~8%；Silicon：0~1%；Chromium：20%~21%；Nickel：4
~5%；Vanadium：6.2~8.5%；In the case that content is identical, while yttrium carbide and ytterbium carbide are added in, and yttrium carbide：2.3~
3.5%；Ytterbium carbide：1.2~2.4% pairs of alloy abrasion resistant steel material intensity effect percentages, are shown in Table 3:
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (5)
1. a kind of Multifunctional mathematics teaching ruler, it is characterised in that：It includes locating support (20), and the top of locating support (20) is pacified
Equipped with laser support (65), the bottom of laser support (65) is equipped with several laser emitting modules (56), locating support (20)
Middle part is equipped with stable rotation geometry stacking apparatus；The stable rotation geometry stacking apparatus includes fixed frame (51), fixed frame
(51) there are two upper large size bearings (52) for top connection, and the central shaft of two upper large size bearings (52) is conllinear, large size bearing
(52) outer ring is connect with fixed frame (51), and inner ring connection friend's spring clip (53) of large size bearing (52), spring clip is set on (53)
Light-transmitting plate (54) is equipped with, light tight geometric figure bar (64), the lower part installation of locating support (20) are connected on light-transmitting plate (54)
Angled rotational positioning plotter, the angle rotational positioning plotter include pressing plate (10), the side of pressing plate (10) and positioning
Stent (20) connects, and the side connection of pressing plate (10) is there are two positioning column (1), and two positioning columns (1) are mutually parallel, positioning column
(1) one end is connect with pressing plate (10), is hinged with special type ruler between two positioning columns (1), the both sides of special type ruler respectively with two
Positioning column (1) is hinged, and special type ruler can be freely rotated, and special type ruler includes the first ruler (3) and the second ruler (4), the first ruler
(3) there is angle between the second ruler (4), angle is obtuse angle, and special type ruler and the hinge joint of positioning column (1) are located at the first ruler
(3) and the second ruler (4) junction vertical ruler (6) and rebound (12), are provided on the positioning column (1), vertical ruler (6)
With graduated vertical, side and the special type ruler side graduated side of band of rebound (12) when graduated with special type tape
On same straight line, the side of rebound (12) is bonded with special type ruler, and the side of the pressing plate (10) is connected with guide rod
(9), the both ends of guide rod (9) are connect with pressing plate (10), and sliding tube (8) is cased on guide rod (9), and sliding tube (8) can led
It is slided on bar (9), the side of sliding tube (8), which is connected with, slides ruler (7), slides ruler (7) with graduated side and vertical ruler (6)
It is parallel with graduated side.
2. Multifunctional mathematics teaching ruler according to claim 1, it is characterised in that：First ruler (3) and second is directly
For ruler (4) with graduated side side connection light-strip (5), the end of light-strip (5) is connected with LED light (2).
3. Multifunctional mathematics teaching ruler according to claim 1, it is characterised in that：Pulley is installed on the pressing plate (10)
(30), the shaft of pulley (30) is hinged with pressing plate (10), and pulley (30) can be freely rotated on pressing plate (10), sliding tube (8)
On be connected with high strength fibre rope (31), one end and the sliding tube (8) of high strength fibre rope (31) coordinate, high strength fibre rope
(31) middle part bypasses the race of pulley (30), and the other end of high strength fibre rope (31) is connected with spring (32), spring (32)
One end connect with pressing plate (10), slide and spring clip (16) be installed on ruler (7), spring clip is equipped with drawing pen on (16)
(17)。
4. Multifunctional mathematics teaching ruler according to claim 3, it is characterised in that：The high strength fibre rope (31) is by height
Strength-Glass-Fibre is formed, and the component of high strength glass fiber includes by weight：55.0~59.0 parts of SiO2,19.0~23.0
Part Al2O3, 2~3.8 parts of MgO, 14.0~16.0 parts of CaO, 2.8~3.0 parts of SrF2, 0.2~0.3 part of TiF4, 0.1~0.15 part
ZnMoO4, 0.01~0.5 part of Na2S2, by the component in platinum material crucible, at 1400~1500 DEG C, while stirring
Melting is melted 8 hours, the glass melted is put into fiber drawing furnace, remelted at 1430~1450 DEG C, melten glass passes through
Leting slip a remark for platinum bushing plate is drawn into a diameter of 5~13 μm of continuous fibers, and 0 DEG C of ice is directly immersed in from the glass fibre for output of leting slip a remark
In aqueous mixtures, finished product is obtained.
5. Multifunctional mathematics teaching ruler according to claim 1, it is characterised in that：The locating support (20) is resistance to for alloy
Mill steel are made, and the constituent content in the alloy abrasion resistant steel parts by weight per hundred is:
Carbon：0~0.05 part；
Nitrogen：0~0.05 part；
Manganese：7.2~8 parts；
Silicon：0~1 part；
Chromium：20~21 parts；
Nickel：4~5 parts；
Vanadium：6.2~8.5 parts；
Yttrium carbide：2.3~3.5 parts；
Ytterbium carbide：1.2~2.4 parts；
Surplus is iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150493.5A CN108162645A (en) | 2018-02-13 | 2018-02-13 | Multifunctional mathematics teaching ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150493.5A CN108162645A (en) | 2018-02-13 | 2018-02-13 | Multifunctional mathematics teaching ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108162645A true CN108162645A (en) | 2018-06-15 |
Family
ID=62514181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810150493.5A Withdrawn CN108162645A (en) | 2018-02-13 | 2018-02-13 | Multifunctional mathematics teaching ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108162645A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757995A (en) * | 2019-12-06 | 2020-02-07 | 夏晨 | Bar chart drawing device for economics |
-
2018
- 2018-02-13 CN CN201810150493.5A patent/CN108162645A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757995A (en) * | 2019-12-06 | 2020-02-07 | 夏晨 | Bar chart drawing device for economics |
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Application publication date: 20180615 |