CN109017059A

CN109017059A - One kind is for drawing circular plotter and its application method

Info

Publication number: CN109017059A
Application number: CN201810968126.6A
Authority: CN
Inventors: 朱榆洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2018-12-18

Abstract

One kind of the invention is for drawing circular plotter and its application method, including wall, it is set to the intracorporal center of circle selection device of the wall, it is set to the intracorporal distance adjusting means of the wall, it is set to that the wall is intracorporal to draw round device, the center of circle selection device includes being set to the intracorporal opening of the wall to be connected to the first extraneous groove to the right, blackboard is installed in the first groove inner left wall, students are the flowers of motherland, they will be concerning national future, promote the most important thing that the quality of education is social development, today's society, more and more modern comforts have come into classroom, computer, projector, electronic pen etc., here it devises a kind of for drawing circular plotter and its application method, it may be implemented to draw the high accuracy circular of arbitrary size in any position of blackboard, promote the teaching level of teacher, therefore One kind of design for draw circular plotter and its application method it is really necessary to.

Description

One kind is for drawing circular plotter and its application method

Technical field

It is specifically a kind of for drawing circular plotter and its application method the present invention relates to modern teaching field.

Background technique

Students are the flowers of motherland, they will promote the weight that the quality of education is social development concerning national future In weight, today's society, more and more modern comforts have come into classroom, computer, projector, electronic pen etc., have devised here For drawing circular plotter and its application method, it may be implemented to draw arbitrary size in any position of blackboard one kind High accuracy circular promotes the teaching level of teacher, therefore the one kind designed is real for drawing circular plotter and its application method It is necessary to.

Summary of the invention

Technical problem to be solved by the invention is to provide one kind for drawing circular plotter and its application method, It is able to solve the problems in above-mentioned present technology.

The present invention is achieved through the following technical solutions: one kind of the invention for draw circular plotter and its Application method, including wall, be set to the intracorporal center of circle selection device of the wall, be set to the wall it is intracorporal distance adjust dress It sets, be set to that the wall is intracorporal to draw round device, the center of circle selection device includes being set to the intracorporal opening of the wall to the right It is connected to the first extraneous groove, blackboard is installed in the first groove inner left wall, connects in the first groove upper inside walls Logical to be provided with the second groove that Open Side Down, the second groove upper inside walls are slidably connected with the first sliding shoe, described The third groove of opening upwards is provided with and communicated on the downside of first groove in inner wall, is slidably matched on inner wall on the downside of the third groove It is connected with the second sliding shoe, the second sliding shoe upper end keeps right and is fixedly connected with the other end and second groove at side position The link block that lower end is fixedly connected is installed with the first working chamber, the first working chamber upper inside walls in the second sliding shoe It is slidably connected with third sliding shoe, first motor is installed in the third sliding shoe, the left end of the first motor is defeated Shaft, which is extended into the left in first working chamber, is installed with first bevel gear, and the first bevel gear upper end is engaged with second Bevel gear is installed with rotatable first rotating shaft at the second bevel gear axle center, and the second bevel gear left end is engaged with Third hand tap gear, is installed with rotatable second shaft at the third hand tap gear axle center, in the first working chamber inner left wall It is installed with the second working chamber, second shaft left end, which extends into second working chamber, is installed with the first spur gear, institute It states the first spur gear upper end and is engaged with the second spur gear, rotatable third shaft is installed at second spur gear axle center, It is installed with the 4th groove that opening is connected to the right and with the third groove at the second sliding shoe leftward position, the described 4th The belt being fixedly connected with the 4th groove front and back side inner wall is installed in groove, second shaft left end extends into institute It states and is installed with the first idler wheel in the 4th groove, third shaft left end extends into the 4th groove and is installed with the second rolling The belt is sandwiched in centre by wheel, second idler wheel and first idler wheel, and the output shaft of the first motor right end is to the right It extends into first working chamber and is installed with the 4th bevel gear, being installed in first working chamber can be with the 4th cone 5th bevel gear of gear upper end engagement, is installed with the 4th shaft at the 5th bevel gear axle center, under first working chamber It is provided with and communicated with the 5th groove of opening upwards in the inner wall of side, is installed with the second motor in inner wall on the right side of the 5th groove, institute The outputting axial power for stating the second motor is connected with the first lead screw extended into the 5th groove to the left, and the described 5th Be slidably connected with the 4th sliding shoe on inner wall on the downside of groove, be installed with an opening to the right in the 4th sliding shoe and with institute State the first threaded hole that the first lead screw left end is threadedly engaged connection, the 4th shaft upper end extend into first groove and It is rotatably assorted with the second groove lower end wall inner bearing and is connected with the second lead screw, the company of being slidably matched on the wall of the link block left end It is connected to the 5th sliding shoe, is installed in the 5th sliding shoe perforative up and down and with second threads of lead screw mating connection Second threaded hole.

The distance adjusting means include fixing with the 5th sliding shoe left end rotary type as a preferred technical solution, The component of connection is installed with third working chamber in the component, is installed with third motor in inner wall on the right side of the third working chamber, The third motor output shaft, which is extended into the left in the third working chamber, is installed with third spur gear, the third spur gear Annular spread has the 4th spur gear for engaging mating connection on circumference, and being installed at the 4th spur gear axle center can be rotated The 5th shaft, the 5th shaft extends into the first groove screw-internal thread fit to the left and is connected with drawing block.

It is described as a preferred technical solution, that draw round device include the of the opening that is set in the drawing block backward Six grooves are symmetrically arranged with the 7th opposite groove that is open in the 6th groove upper and lower sides inner wall, set in the 7th groove It is equipped with the locating cone that can slide up and down, upper end is installed in the 7th groove and is fixedly connected with the 7th groove upper inside walls And the spring that lower end is fixedly connected with the locating cone upper end, it is placed in the 6th groove and the 6th groove pairing The scale of standard is carved in drawing ruler, the drawing ruler upper end, and the drawing ruler upper and lower side is symmetrically installed with matches with the locating cone Pair locating slot, left and right is provided through rectangular through holes in the drawing ruler, be provided in the rectangular through holes with it is described The chalk mounting blocks of rectangular through holes upper and lower sides inner wall sliding connection, the interior left and right of the chalk mounting blocks are provided through powder Mounting hole.

The third spur gear rotation is driven by starting the third motor as a preferred technical solution, described the Three spur gears drive the rotation of the 4th spur gear described in planetary gear, and the 5th shaft may be implemented in the rotation of the 4th spur gear Rotation, the rotation of the 5th shaft realizes the adjusting of the distance between the drawing block and the blackboard, keeps the present apparatus suitable For the blackboard of more different-thickness, while can be adjusted according to the length of chalk between the drawing block and the blackboard Distance, prevents that chalk is too long and the distance between the drawing block and the blackboard are also too long leads to powder during drawing circle The case where pen fractures.

It as a preferred technical solution, can be with by adjusting the position of the chalk mounting hole in the rectangular through holes The radius of circle is drawn in adjustment, and the drawing ruler may be implemented in the drawing block in the setting of the locating cone and the spring Quickly fixed and fast quick-detach, teacher will draw bowlder, only the drawing ruler need to be inserted into the 6th groove, at the end of drafting The drawing ruler need to only be extracted, can continue to draw straight line with the drawing ruler.

Described method includes following steps:

Firstly, teacher specifies a center of circle using infrared ray pen matched with the present apparatus, and after the center of circle determines, the first electricity Machine starting, drives first bevel gear rotation, and first bevel gear drives second bevel gear and first rotating shaft rotation, second bevel gear band Dynamic third hand tap gear and the rotation of the second shaft, the second shaft drive the rotation of the first spur gear, and the first spur gear drives the second straight-tooth Wheel and the rotation of third shaft, the second shaft and third shaft drive the first idler wheel and the second idler wheel to rotate respectively, due to the second rolling Wheel and the first idler wheel tightly push down the upper and lower surface of belt respectively, and the second sliding shoe may be implemented and slide back and forth in third groove, The second sliding shoe drives the first sliding shoe to move synchronously by link block, when the second sliding shoe move to the specified center of circle it is just lower at When, first motor stops.

Secondly, the second electric motor starting, drives the rotation of the first lead screw, the first lead screw, which drives, is threadedly engaged the 4th of connection with it Sliding shoe moves to right, and the 4th sliding shoe drives third sliding shoe thereon to move to right, and first bevel gear is disengaged from second bevel gear, Until the 4th bevel gear and the 5th bevel gear engage, the second motor stop motion, first motor starting drives the rotation of the 4th bevel gear Turn, the 4th bevel gear drives the 5th bevel gear and the rotation of the 4th shaft, and the 4th shaft drives the rotation of the second lead screw, the rotation of the second lead screw Turn that the 5th sliding shoe is driven to move up and down, when the center face of the 5th sliding shoe specified center of circle, first motor stops.

Finally, drawing ruler is inserted into the 6th groove by teacher, drawing ruler is locked by locating cone, and teacher will be in chalk mounting hole Insertion chalk adjusts chalk mounting blocks further according to scale in the position of rectangular through holes, realizes and selects round radius, then Third electric motor starting, machine meeting the distance between adjust automatically drawing block and blackboard arrive optimum position, and third motor stops, teacher Rotatable parts realize the drafting of circle, complete after drawing, and teacher extracts drawing ruler, and device automatically resets and returns initial position.

The beneficial effects of the present invention are: the configuration of the present invention is simple, easy to operate, when carrying out tobacco leaf drying by the present apparatus, Teacher specifies a center of circle using infrared ray pen matched with the present apparatus, after the center of circle determines, first motor starting, and band Dynamic first bevel gear rotation, first bevel gear drive second bevel gear and first rotating shaft rotation, and second bevel gear drives third cone Gear and the rotation of the second shaft, the second shaft drive the rotation of the first spur gear, and the first spur gear drives the second spur gear and third Shaft rotation, the second shaft and third shaft drive the first idler wheel and the second idler wheel to rotate respectively, due to the second idler wheel and first Idler wheel tightly pushes down the upper and lower surface of belt respectively, and the second sliding shoe may be implemented and slide back and forth in third groove, the second sliding Block drives the first sliding shoe to move synchronously by link block, when the second sliding shoe move to the specified center of circle it is just lower at when, first Motor stops, while the second electric motor starting, drives the rotation of the first lead screw, and the first lead screw, which drives, is threadedly engaged the 4th of connection with it Sliding shoe moves to right, and the 4th sliding shoe drives third sliding shoe thereon to move to right, and first bevel gear is disengaged from second bevel gear, Until the 4th bevel gear and the 5th bevel gear engage, the second motor stop motion, first motor starting drives the rotation of the 4th bevel gear Turn, the 4th bevel gear drives the 5th bevel gear and the rotation of the 4th shaft, and the 4th shaft drives the rotation of the second lead screw, the rotation of the second lead screw Turning that the 5th sliding shoe is driven to move up and down, when the center face of the 5th sliding shoe specified center of circle, first motor stops, with Drawing ruler is inserted into the 6th groove by teacher afterwards, and drawing ruler is locked by locating cone, and teacher will be inserted into chalk again in chalk mounting hole Chalk mounting blocks are adjusted according to scale in the position of rectangular through holes, realize and round radius is selected, subsequent third motor opens Dynamic, machine meeting the distance between adjust automatically drawing block and blackboard arrive optimum position, and third motor stops, and teacher's rotatable parts are real Now round drafting is completed after drawing, and teacher extracts drawing ruler, and device automatically resets and returns initial position.

Detailed description of the invention

The present invention is described in detail by following specific embodiments and drawings for ease of explanation,.

Fig. 1 is of the invention a kind of for drawing the schematic diagram of internal structure of circular plotter and its application method；

Fig. 2 is the cross-sectional view in direction " A-A " in Fig. 1；

Fig. 3 is the enlarged diagram of " B " in Fig. 1；

Fig. 4 is the enlarged diagram of " C " in Fig. 1；

Fig. 5 is the cross-sectional view of " D " in Fig. 4；

Fig. 6 is the cross-sectional view of " E " in Fig. 4；

Fig. 7 is the enlarged diagram of " F " in Fig. 6.

Specific embodiment

As shown in Fig. 1-Fig. 7, one kind of the invention is for drawing circular plotter and its application method, including wall 10, the center of circle selection device that is set in the wall 10, is set to institute at the distance adjusting means being set in the wall 10 The round device of drawing in wall 10 is stated, the center of circle selection device includes that the opening being set in the wall 10 is connected to the right the external world The first groove 11, be installed with blackboard 12 in 11 inner left wall of the first groove, connect in 11 upper inside walls of the first groove Logical to be provided with the second groove 13 that Open Side Down, 13 upper inside walls of the second groove are slidably connected with the first sliding shoe 14, the third groove 15 of opening upwards, 15 downside of third groove are provided with and communicated in the 11 downside inner wall of the first groove Be slidably connected with the second sliding shoe 16 on inner wall, 16 upper end of the second sliding shoe keep right be fixedly connected at side position it is another The link block 17 that one end is fixedly connected with 13 lower end of the second groove is installed with the first working chamber in the second sliding shoe 16 18,18 upper inside walls of the first working chamber are slidably connected with third sliding shoe 19, fixed in the third sliding shoe 19 There is first motor 20, the left end output shaft of the first motor 20, which is extended into the left in first working chamber 18, is installed with One bevel gear 21,21 upper end of first bevel gear are engaged with second bevel gear 22, fixed at 22 axle center of second bevel gear There is rotatable first rotating shaft 23,22 left end of second bevel gear is engaged with third hand tap gear 24, the third hand tap gear 24 It is installed with rotatable second shaft 25 at axle center, is installed with the second working chamber 26 in 18 inner left wall of the first working chamber, Second shaft, 25 left end, which extends into second working chamber 26, is installed with the first spur gear 27, first spur gear 27 upper ends are engaged with the second spur gear 28, and rotatable third shaft 29 is installed at 28 axle center of the second spur gear, described It is installed with the 4th groove 30 that opening is connected to the right and with the third groove 15 at 16 leftward position of the second sliding shoe, described the The belt 31 being fixedly connected with the 30 front and back side inner wall of the 4th groove, 25 left end of the second shaft are installed in four grooves 30 It extends into the 4th groove 30 and is installed with the first idler wheel 32, it is recessed that 29 left end of third shaft extends into the described 4th It is installed with the second idler wheel 33 in slot 30, the belt 31 is sandwiched in centre by second idler wheel 33 and first idler wheel 32, institute The output shaft for stating 20 right end of first motor, which extends into the right in first working chamber 18, is installed with the 4th bevel gear 34, described The 5th bevel gear 35 that can be engaged with 34 upper end of the 4th bevel gear, the 5th bevel gear are installed in first working chamber 18 The 4th shaft 36 is installed at 35 axle center, the 5th that opening upwards are provided with and communicated in the 18 downside inner wall of the first working chamber is recessed Slot 37 is installed with the second motor 38, the outputting axial power cooperation of second motor 38 in the 37 right side inner wall of the 5th groove It is connected with the first lead screw 39 extended into the 5th groove 37 to the left, slides and matches on the 37 downside inner wall of the 5th groove Conjunction is connected with the 4th sliding shoe 40, be installed with an opening to the right in the 4th sliding shoe 40 and with 39 left end of the first lead screw It is threadedly engaged the first threaded hole 41 of connection, 36 upper end of the 4th shaft extends into first groove 11 and with described Two grooves, 13 lower end wall inner bearing, which is rotatably assorted, is connected with the second lead screw 42, is slidably connected on the 17 left end wall of link block Have the 5th sliding shoe 43, be installed in the 5th sliding shoe 43 up and down it is perforative and with 42 company of being threadedly engaged of the second lead screw The second threaded hole 44 connect.

Valuably, the distance adjusting means include the component being fixedly connected with the 43 left end rotary type of the 5th sliding shoe 45, third working chamber 46 is installed in the component 45, is installed with third motor 47 in the 46 right side inner wall of third working chamber, 47 output shaft of third motor, which is extended into the left in the third working chamber 46, is installed with third spur gear 48, the third Annular spread has the 4th spur gear 49 for engaging mating connection on 48 circumference of spur gear, at 49 axle center of the 4th spur gear It is installed with rotatable 5th shaft 50, the 5th shaft 50 extends into 11 screw-internal thread fit of the first groove to the left and connects It is connected to drawing block 51.

It is valuably, described that draw round device include opening the 6th groove 52 backward being set in the drawing block 51, The 7th opposite groove 53 that is open, setting in the 7th groove 53 are symmetrically arranged in 6th groove, the 52 upper and lower sides inner wall Can slide up and down locating cone 54, and upper end is installed in the 7th groove 53 and is fixed with 53 upper inside walls of the 7th groove Connection and the spring 55 that is fixedly connected with 54 upper end of locating cone of lower end are placed with and the described 6th in the 6th groove 52 The scale 57 of standard is carved in the drawing ruler 56 that groove 52 matches, 56 upper end of drawing ruler, and 56 upper and lower side of drawing ruler is symmetrical It is installed with the locating slot 58 with the locating cone 54 pairing, left and right is provided through rectangular through holes 59 in the drawing ruler 56, The chalk mounting blocks with the 59 upper and lower sides inner wall of rectangular through holes sliding connection are provided in the rectangular through holes 59 60, the interior left and right of the chalk mounting blocks 60 is provided through chalk mounting hole 61.

Valuably, the third spur gear 48 is driven to rotate by starting the third motor 47, the third spur gear 48 drive the rotation of the 4th spur gear 49 described in planetary gear, and the 5th shaft 50 may be implemented in the rotation of the 4th spur gear 49 Rotation, the rotation of the 5th shaft 50 realizes the adjusting of the distance between the drawing block 51 and described blackboard 12, makes this Device be suitable for more different-thickness blackboard, while can be adjusted according to the length of chalk the drawing block 51 with it is described black The distance between plate 12, prevent that chalk is too long and the drawing block 51 with the distance between the blackboard 12 is also too long causes The case where chalk fractures during drawing circle.

Valuably, by adjusting position adjustable drafting of the chalk mounting hole 61 in the rectangular through holes 59 The drawing ruler 56 may be implemented in the drawing block 51 in the setting of round radius, the locating cone 54 and the spring 55 Quickly fixed and fast quick-detach, teacher will draw bowlder, and only the drawing ruler 56 need to be inserted into the 6th groove 52, draw knot The drawing ruler 56 need to only be extracted when beam, can continue to draw straight line with the drawing ruler 56.

Original state: all motors are all in halted state, and the 5th sliding shoe 43 is located at second lead screw 42 most Upper end position, first idler wheel 32 and second idler wheel 33 are located at 31 foremost position of belt, the first cone tooth Wheel 21 is in meshing state with the second bevel gear 22.

Described method includes following steps:

Firstly, teacher specifies a center of circle using infrared ray pen matched with the present apparatus, and after the center of circle determines, the first electricity Machine 20 starts, and first bevel gear 21 is driven to rotate, and first bevel gear 21 drives second bevel gear 22 and first rotating shaft 23 to rotate, the Two bevel gears 22 drive third hand tap gear 24 and the rotation of the second shaft 25, and the second shaft 25 drives the rotation of the first spur gear 27, the One spur gear 27 drives the second spur gear 28 and third shaft 29 to rotate, and the second shaft 25 and third shaft 29 drive first respectively Idler wheel 32 and the rotation of the second idler wheel 33, since the second idler wheel 33 and the first idler wheel 32 tightly push down the upper following table of belt 31 respectively Face may be implemented the second sliding shoe 16 and slide back and forth in third groove 15, and the second sliding shoe 16 drives first by link block 17 Sliding shoe 14 moves synchronously, when the second sliding shoe 16 moves to the specified center of circle just lower place, the stopping of first motor 20.

Secondly, the second motor 38 starts, the rotation of the first lead screw 39 is driven, the drive of the first lead screw 39 is threadedly engaged with it to be connect The 4th sliding shoe 40 move to right, the 4th sliding shoe 40 drives third sliding shoe 19 thereon to move to right, first bevel gear 21 and second Bevel gear 22 is disengaged from, and until the 4th bevel gear 34 and the 5th bevel gear 35 engage, 38 stop motion of the second motor, first is electric Machine 20 starts, and drives the rotation of the 4th bevel gear 34, and the 4th bevel gear 34 drives the 5th bevel gear 35 and the rotation of the 4th shaft 36, the Four shafts 36 drive the rotation of the second lead screw 42, and the rotation of the second lead screw 42 drives the 5th sliding shoe 43 to move up and down, until the 5th sliding When the center of circle that the center face of motion block 43 is specified, first motor 20 stops.

Finally, drawing ruler 56 is inserted into the 6th groove 52 by teacher, drawing ruler 56 is locked by locating cone 54, and teacher is by chalk Insertion chalk adjusts chalk mounting blocks 60 further according to scale 57 in the position of rectangular through holes 59 in mounting hole 61, realizes to circle Radius selection, subsequent third motor 47 starts, machine can the distance between adjust automatically drawing block 51 and blackboard 12 to most preferably Position, third motor 47 stop, and teacher's rotatable parts 45 realize the drafting of circle, complete after drawing, and teacher extracts drawing ruler 56, dress It sets and automatically resets and return initial position.

When carrying out tobacco leaf drying by the present apparatus, teacher specifies a circle using infrared ray pen matched with the present apparatus The heart, after the center of circle determines, first motor 20 starts, and first bevel gear 21 is driven to rotate, and first bevel gear 21 drives second Bevel gear 22 and first rotating shaft 23 rotate, and second bevel gear 22 drives third hand tap gear 24 and the second shaft 25 to rotate, and second turn Axis 25 drives the rotation of the first spur gear 27, and the first spur gear 27 drives the second spur gear 28 and third shaft 29 to rotate, and second turn Axis 25 and third shaft 29 drive the first idler wheel 32 and the second idler wheel 33 to rotate respectively, due to the second idler wheel 33 and the first idler wheel 32 The upper and lower surface for tightly pushing down belt 31 respectively may be implemented the second sliding shoe 16 and slide back and forth in third groove 15, and second is sliding Motion block 16 drives the first sliding shoe 14 to move synchronously by link block 17, under the second sliding shoe 16 moves to the specified center of circle just When place, first motor 20 stops, while the second motor 38 starts, and drives the rotation of the first lead screw 39, and the first lead screw 39 drives and it The 4th sliding shoe 40 for being threadedly engaged connection moves to right, and the 4th sliding shoe 40 drives third sliding shoe 19 thereon to move to right, the first cone Gear 21 is disengaged from second bevel gear 22, and until the 4th bevel gear 34 and the 5th bevel gear 35 engage, the second motor 38 stops It only moves, first motor 20 starts, and drives the rotation of the 4th bevel gear 34, and the 4th bevel gear 34 drives the 5th bevel gear 35 and the 4th Shaft 36 rotates, and the 4th shaft 36 drives the rotation of the second lead screw 42, and the rotation of the second lead screw 42 drives and moves down on the 5th sliding shoe 43 Dynamic, when the center face of the 5th sliding shoe 43 specified center of circle, first motor 20 stops, and subsequent teacher inserts drawing ruler 56 Enter in the 6th groove 52, drawing ruler 56 is locked by locating cone 54, and teacher will be inserted into chalk further according to scale in chalk mounting hole 61 57 adjust chalk mounting blocks 60 in the position of rectangular through holes 59, realize and select round radius, subsequent third motor 47 opens Dynamic, machine meeting the distance between adjust automatically drawing block 51 and blackboard 12 arrive optimum position, and third motor 47 stops, teacher's rotation Component 45 realizes the drafting of circle, completes after drawing, and teacher extracts drawing ruler 56, and device automatically resets and returns initial position.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention Protection scope should be determined by the scope of protection defined in the claims.

Claims

1. one kind of the invention is for drawing circular plotter and its application method, including wall, it is set in the wall Center of circle selection device, be set to the intracorporal distance adjusting means of the wall, be set to that the wall is intracorporal to draw round device, it is described Center of circle selection device includes being set to the intracorporal opening of the wall to be connected to the first extraneous groove, the first groove left side to the right It is installed with blackboard on inner wall, is provided with and communicated with the second groove that Open Side Down in the first groove upper inside walls, described second Groove upper inside walls are slidably connected with the first sliding shoe, are provided with and communicated with opening upwards in inner wall on the downside of first groove Third groove, be slidably connected with the second sliding shoe, the second sliding shoe upper end on inner wall on the downside of the third groove It keeps right and is fixedly connected with the link block that the other end is fixedly connected with second groove lower end, the second sliding shoe at side position It is inside installed with the first working chamber, the first working chamber upper inside walls are slidably connected with third sliding shoe, and the third is sliding First motor is installed in motion block, the left end output shaft of the first motor extends into fixed in first working chamber to the left There is first bevel gear, the first bevel gear upper end is engaged with second bevel gear, and being installed at the second bevel gear axle center can The first rotating shaft of rotation, the second bevel gear left end are engaged with third hand tap gear, are installed at the third hand tap gear axle center Rotatable second shaft is installed with the second working chamber in the first working chamber inner left wall, and second shaft left end is prolonged It extends into second working chamber and is installed with the first spur gear, first spur gear upper end is engaged with the second spur gear, institute State and be installed with rotatable third shaft at the second spur gear axle center, be installed at the second sliding shoe leftward position opening to The 4th groove that is right and be connected to the third groove, is installed in the 4th groove and the 4th groove front and back side inner wall The belt being fixedly connected, second shaft left end, which extends into the 4th groove, is installed with the first idler wheel, the third Shaft left end, which extends into the 4th groove, is installed with the second idler wheel, and second idler wheel and first idler wheel are described in Belt is sandwiched in centre, and the output shaft of the first motor right end, which extends into the right in first working chamber, is installed with the 4th cone Gear is installed with the 5th bevel gear that can be engaged with the 4th bevel gear upper end, the 5th cone in first working chamber The 4th shaft is installed at gear axis, the 5th that opening upwards are provided with and communicated in the inner wall of the first working chamber downside is recessed Slot is installed with the second motor in inner wall on the right side of the 5th groove, and the outputting axial power of second motor is cooperatively connected oriented A left side extends into the first lead screw in the 5th groove, is slidably connected with the 4th on inner wall on the downside of the 5th groove and slides Motion block is installed with an opening to the right in the 4th sliding shoe and is threadedly engaged the first spiral shell of connection with first lead screw left end Pit, the 4th shaft upper end extend into first groove and are rotatably assorted with the second groove lower end wall inner bearing It is connected with the second lead screw, the 5th sliding shoe is slidably connected on the wall of the link block left end, is consolidated in the 5th sliding shoe Equipped with the second threaded hole that is perforative up and down and being cooperatively connected with second threads of lead screw.

2. according to claim 1 a kind of for drawing circular plotter and its application method, it is characterised in that: described Distance adjusting means include the component being fixedly connected with the 5th sliding shoe left end rotary type, are installed with third in the component Working chamber is installed with third motor in inner wall on the right side of the third working chamber, and the third motor output shaft extends into the left Third spur gear is installed in the third working chamber, annular spread engages cooperation and connects on the third spur gear circumference The 4th spur gear connect is installed with rotatable 5th shaft at the 4th spur gear axle center, and the 5th shaft is prolonged to the left It extends into the first groove screw-internal thread fit and is connected with drawing block.

3. according to claim 1 a kind of for drawing circular plotter and its application method, it is characterised in that: described Drawing round device includes opening the 6th groove backward being set in the drawing block, in the 6th groove upper and lower sides inner wall It is symmetrically arranged with opposite the 7th groove of being open, is provided with the locating cone that can slide up and down in the 7th groove, the described 7th It is installed with that upper end is fixedly connected with the 7th groove upper inside walls and lower end is fixedly connected with the locating cone upper end in groove Spring, the drawing ruler with the 6th groove pairing is placed in the 6th groove, standard is carved in the drawing ruler upper end Scale, the drawing ruler upper and lower side is symmetrically installed with the locating slot with locating cone pairing, and left and right is passed through in the drawing ruler It wears and is equipped with rectangular through holes, be provided in the rectangular through holes and be slidably matched company with the rectangular through holes upper and lower sides inner wall The chalk mounting blocks connect, the interior left and right of the chalk mounting blocks are provided through chalk mounting hole.

4. according to claim 1 a kind of for drawing circular plotter and its application method, it is characterised in that: pass through Start the third motor and drive the third spur gear rotation, the third spur gear drives the 4th spur gear described in planetary gear The rotation of the 5th shaft may be implemented in rotation, the rotation of the 4th spur gear, and the rotation of the 5th shaft realizes The distance between the drawing block and the blackboard are adjusted, and so that the present apparatus is suitable for the blackboard of more different-thickness, while can be with The distance between the drawing block and the blackboard are adjusted according to the length of chalk, prevent that chalk is too long and the drawing The distance between block and the blackboard are also too long to lead to the case where chalk fractures during drawing circle.

5. according to claim 1 a kind of for drawing circular plotter and its application method, it is characterised in that: pass through Adjust the adjustable radius for drawing circle in position of the chalk mounting hole in the rectangular through holes, the locating cone and institute Quick fixed and fast quick-detach of the drawing ruler in the drawing block, teacher Yao Huayuan may be implemented in the setting for stating spring When, the drawing ruler need to be only inserted into the 6th groove, the drawing ruler need to only be extracted, can be continued at the end of drafting Straight line is drawn with the drawing ruler;Described method includes following steps:

Firstly, teacher specifies a center of circle using infrared ray pen matched with the present apparatus, and after the center of circle determines, the first electricity Machine starting, drives first bevel gear rotation, and first bevel gear drives second bevel gear and first rotating shaft rotation, second bevel gear band Dynamic third hand tap gear and the rotation of the second shaft, the second shaft drive the rotation of the first spur gear, and the first spur gear drives the second straight-tooth Wheel and the rotation of third shaft, the second shaft and third shaft drive the first idler wheel and the second idler wheel to rotate respectively, due to the second rolling Wheel and the first idler wheel tightly push down the upper and lower surface of belt respectively, and the second sliding shoe may be implemented and slide back and forth in third groove, The second sliding shoe drives the first sliding shoe to move synchronously by link block, when the second sliding shoe move to the specified center of circle it is just lower at When, first motor stops;Secondly, the second electric motor starting, drives the rotation of the first lead screw, the first lead screw is driven and its company of being threadedly engaged The 4th sliding shoe connect moves to right, and the 4th sliding shoe drives third sliding shoe thereon to move to right, first bevel gear and second bevel gear It is disengaged from, until the 4th bevel gear and the 5th bevel gear engage, the second motor stop motion, first motor starting drives the The rotation of four bevel gears, the 4th bevel gear drive the 5th bevel gear and the rotation of the 4th shaft, and the 4th shaft drives the rotation of the second lead screw, The rotation of second lead screw drives the 5th sliding shoe to move up and down, when the center face of the 5th sliding shoe specified center of circle, first Motor stops;Finally, drawing ruler is inserted into the 6th groove by teacher, drawing ruler is locked by locating cone, and teacher is by chalk mounting hole Interior insertion chalk adjusts chalk mounting blocks further according to scale in the position of rectangular through holes, realizes and selects round radius, with Third electric motor starting afterwards, machine meeting the distance between adjust automatically drawing block and blackboard arrive optimum position, and third motor stops, religion Teacher's rotatable parts realize the drafting of circle, complete after drawing, and teacher extracts drawing ruler, and device automatically resets and returns initial position.