CN106251716A - A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating - Google Patents
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating Download PDFInfo
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- CN106251716A CN106251716A CN201610887895.4A CN201610887895A CN106251716A CN 106251716 A CN106251716 A CN 106251716A CN 201610887895 A CN201610887895 A CN 201610887895A CN 106251716 A CN106251716 A CN 106251716A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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Abstract
The mechanical transmission unit of a kind of Graphing of Engineering universal projection apparatus for demonstrating, it relates to a kind of mechanical transmission unit.The present invention is to solve that demo content deposited by existing teaching aid limited, and Projection Display be confined to LED and show, can not the core concept of appropriate expression universal projection, the problem bringing inconvenience to Graphing of Engineering giving lessons in terms of universal projection.Fixed plate (17) and the base plate (18) of the present invention be arranged in parallel up and down, projector mechanism (7) is installed between fixed plate (17) and base plate (18), the top of projector mechanism (7) slidably positions by being arranged on multiple universal wheels (16) of fixed plate (17) lower end, the both sides of projection (7) contact with the drive mechanism being arranged on base plate (18) and governor motion, and drive mechanism and governor motion drive projector mechanism (7) to rotate.The present invention demonstrates for Graphing of Engineering universal projection.
Description
Technical field
The present invention relates to the assembly unit of a kind of projection demonstration device, be specifically related to a kind of Graphing of Engineering universal projection demonstration
The mechanical transmission unit of device.
Background technology
The traditional engineering graphics teaching of China is mainly based on writing on the blackboard, papery wall chart and single mock-up, but more than
Teaching aid exists the most not enough in teaching process.Although such as writing on the blackboard is essential in teaching, but teacher's blackboard drawing can account for
With the long period, the most therefore classroom knowledge output can reduce accordingly；Traditionally on paper wall chart, during can alleviating teachers ' teaching
The time pressure that writing on the blackboard drawing brings, but papery wall chart example amount is limited, it is impossible to change flexibly；Mock-up structure is single,
Each model can only express a knowledge point, and a large amount of models are not easy to class-teaching of teacher and carry, and need substantial amounts of storage space.Mesh
Before, though the most having there is simple comprehensive object visual, but face is changed in the projection of the simplest point-line-surface combination, seldom demonstration
Method and the projection of basic body.Meanwhile, these teaching aids can only come real by the number increasing face when face law theory is changed in demonstration
The projection of existing all directions, too much perspective plane can occupy much room, cause the waste of processing cost.And, drilling on market
The LED that display teaching aid is confined on perspective plane in terms of Projection Display shows, there is not yet the demonstration of display effect preferable the type
Teaching aid.
In sum, it is limited that demo content deposited by existing teaching aid, and Projection Display is confined to LED and shows, can not be proper
Such as the core concept expressing universal projection of its point, bring inconvenience to Graphing of Engineering giving lessons in terms of universal projection.
Summary of the invention
The invention aims to solve existing teaching aid, to deposit demo content limited, and Projection Display is confined to LED
Display, can not the core concept of appropriate expression universal projection, to Graphing of Engineering giving lessons in terms of universal projection
The problem bringing inconvenience.And then the mechanical transmission unit of a kind of Graphing of Engineering universal projection apparatus for demonstrating is provided.
The technical scheme is that the mechanical transmission unit of a kind of Graphing of Engineering universal projection apparatus for demonstrating includes the end
Plate, fixed plate, projector mechanism, drive mechanism, governor motion and multiple universal wheel, fixed plate and base plate be arranged in parallel up and down, Gu
Determining to be provided with between plate and base plate projector mechanism, the top of projector mechanism can by being arranged on multiple universal wheels of fixed plate lower end
Slide location, the both sides of projector mechanism contact with the drive mechanism being arranged on base plate and governor motion, and drive mechanism and
Governor motion drives projector mechanism to rotate.
Further, projector mechanism is single plane fluoroscopy hollow glass ball.
Further, single plane fluoroscopy hollow ball is sectioned respectively by plane at diameter 1/2 and at a diameter of 2/15, is divided into
Three parts and all to be screwed up by spiral be a complete hollow ball.
Further, drive mechanism includes the first driving motor, drives actively shaft coupling, drive mechanism driving gear, axle
Bearing, drive mechanism driven gear and driving rubber wheel, bearing block is arranged on base plate, and drive mechanism driven gear is by driving
Mechanism's driven shaft is arranged on bearing block, and the outboard end of drive mechanism driven shaft is provided with driving rubber wheel, drives rubber wheel
Contacting with the lateral wall of projector mechanism, first drives motor to be arranged on base plate, and first drives the outfan of motor by driving
Actively shaft coupling is connected with drive mechanism driving shaft, and drive mechanism driving gear is sleeved on drive mechanism driving shaft, drives machine
Structure driving gear engages with drive mechanism driven gear.
Further, the outer contour shape phase of the rubber wheel contact surface shape with projector mechanism and projector mechanism is driven
Join.
Further, governor motion includes manually regulating parts and rotatable parts, and rotatable parts contact also with projector mechanism
Projector mechanism being operated alone rotate, manually regulation parts are connected with rotatable parts engagement, pass through hands under the transmission of rotatable parts
The dynamic projector mechanism of driving indirectly rotates.
Further, manually regulation parts include handle, manual mechanism driving shaft, coarse adjustment mechanism driving gear and freqency fine adjustment machine
Structure driving gear, manual mechanism driving shaft is horizontally moveable on base plate, coarse adjustment mechanism driving gear and micro-adjusting mechanism driving tooth
Wheel is sleeved on manual mechanism driving shaft successively, and micro-adjusting mechanism driving gear is arranged on far near projector mechanism side, handle
On the manual mechanism driving shaft of projector mechanism side.
Further, rotatable parts include the second motor, rotatable parts driving gear, manual mechanism driven shaft, thick
Regulating mechanism driven gear, micro-adjusting mechanism driven gear and regulation rubber wheel, rotatable parts driving gear is sleeved on second step and enters electricity
On the output shaft of machine, the output shaft of manual mechanism driven shaft and the second motor be arranged in parallel, coarse adjustment mechanism driven gear set
It is contained in one end of manual mechanism driven shaft and engages with rotatable parts driving gear, or coarse adjustment mechanism driven gear and coarse adjustment mechanism
Driving gear engages, and micro-adjusting mechanism driven gear is sleeved on the middle part of manual mechanism driven shaft, and micro-adjusting mechanism driven gear is with micro-
Regulating mechanism driving gear engages, and regulation rubber wheel is sleeved on the other end of manual mechanism driven shaft, and regulates rubber wheel and projection
Mechanism contacts.
The present invention compared with prior art has the effect that
1, the Graphing of Engineering teaching aid of the present invention can improve university students in the learning process of Engineering Drawing Course to textbook
The understanding of theoretical knowledge, can the process of cognitive projection intuitively；On classroom, teacher utilizes this teaching aid can be by hard to understand
Theorem is demonstrated, and has both strengthened student and has understood, brings certain feeling of freshness to again classmates, reaches splendid teaching efficiency.And
And can reach rational in infrastructure, simple to operate, use requirement flexibly, effectively prevent Projection Display and be confined to LED and show, not
The core concept of the appropriate expression universal projection of energy, brings inconvenience to Graphing of Engineering giving lessons in terms of universal projection
Problem.
2, the structure of the present invention realizes controlling the Arbitrary Rotation of hyaloplasmic sphere by a pair rubber wheel, can find conjunction
Right position has reached the universal effect changing face projection on the basis of putting；Select single plane fluoroscopy hollow glass ball, it is to avoid ambient
Impact on projection demonstration process；In image displaying part, not only it is only capable of observing intuitively in hollow glass ball on perspective plane
Projected picture, moreover it is possible on a display screen display three simultaneous images of different directions view, be more beneficial for understand；Three regard
Figure is processed into digital signal, combines with network, is filled with new developing direction in uninteresting Engineering Drawing, it is possible to
Derivation prints to papery version, effectively raises student's understanding to sciagraphy, and brings the feeling of freshness of study to student.
3, the application also has the advantage that
First, present invention achieves an overall projection demonstration system, fixed model, regulate initial position, pass through
Having automatically controlled projection demonstration, perspective plane image acquisition such as shows at the function, simple to operate, and automaticity is high.
Again, the present invention realizes changing face projection at any angle, and perspective plane can realize reaching along with the motion of glass bead
Any direction projection of object；
Finally, prior art stops at manually changes perspective plane, and is only capable of once seeing a perspective plane design sketch, energy of the present invention
Integrated three perspective plane design sketchs and a display surface, convenient observation, teaching efficiency is splendid.
Accompanying drawing explanation
Fig. 1 is the isometric drawing of globular projection teaching aid；
Fig. 2 is the partial front elevation view of globular projection teaching aid shown in Fig. 1；
Fig. 3 is the partial sectional view of globular projection teaching aid shown in Fig. 1；
Fig. 4 is the cutaway top view of globular projection teaching aid shown in Fig. 1；
Fig. 5 is the side view of globular projection teaching aid shown in Fig. 1；
Fig. 6 is the partial sectional view that handle shown in Fig. 3 is disengaged from state；
Fig. 7 is that projection imaging module realizes block diagram.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 to Fig. 6 and present embodiment is described, a kind of Graphing of Engineering ten thousand of present embodiment
Mechanical transmission unit to projection demonstration device include base plate 18, fixed plate 17, projector mechanism 7, drive mechanism, governor motion and
Multiple universal wheels 16, fixed plate 17 and base plate about 18 be arranged in parallel, are provided with projector mechanism between fixed plate 17 and base plate 18
7, the top of projector mechanism 7 slidably positions by being arranged on multiple universal wheels 16 of fixed plate 17 lower end, the two of projector mechanism 7
Side contacts with the drive mechanism being arranged on base plate 18 and governor motion, and drive mechanism and governor motion drive projector mechanism
7 rotate.
Detailed description of the invention two: combine Fig. 1 and present embodiment is described, the projector mechanism 7 of present embodiment is single plane fluoroscopy
Hollow glass ball.It is arranged such, it is to avoid the ambient impact on projection demonstration process.Other composition and annexation and tool
Body embodiment one is identical.
Detailed description of the invention three: combine Fig. 1 and present embodiment is described, the single plane fluoroscopy hollow ball of present embodiment is by plane
Section at diameter 1/2 and at a diameter of 2/15 respectively, be divided into three parts and all to be screwed up by spiral be a complete sky
Bulbus cordis.Being arranged such, taking apart at radius is to install for convenience of ball inner part and later maintenance overhaul, takes apart and conveniently penetrate at 2/15
Laying and the placement of model in operating process of lamp.Other composition is identical with detailed description of the invention one or two with annexation.
Detailed description of the invention four: combine Fig. 1, Fig. 2 and Fig. 4 and present embodiment is described, the drive mechanism bag of present embodiment
Include the first driving motor 1, drive actively shaft coupling 2, drive mechanism driving gear 4, bearing block 19, drive mechanism driven gear 6
With driving rubber wheel 13, bearing block 19 is arranged on base plate 18, and drive mechanism driven gear 6 is installed by drive mechanism driven shaft
On bearing block 19, the outboard end of drive mechanism driven shaft is provided with driving rubber wheel 13, drives rubber wheel 13 and scialyscope
The lateral wall contact of structure 7, first drives motor 1 to be arranged on base plate 18, and first drives the outfan of motor 1 by driving actively
Shaft coupling 2 is connected with drive mechanism driving shaft, and drive mechanism driving gear 4 is sleeved on drive mechanism driving shaft, drive mechanism
Driving gear 4 engages with drive mechanism driven gear 6.It is arranged such, it is simple to drive projector mechanism to rotate.Other composition and
Annexation is identical with detailed description of the invention one or three.
Detailed description of the invention five: combine Fig. 1, Fig. 2, Fig. 3 and Fig. 6 and present embodiment is described, the driving rubber of present embodiment
Rubber tire 13 matches with the outer contour shape of projector mechanism 7 with the contact surface shape of projector mechanism 7.It is arranged such, drives more
Reliable and stable.Other composition is identical with detailed description of the invention four with annexation.
Detailed description of the invention six: combine Fig. 1 and present embodiment is described, the governor motion of present embodiment includes manually regulating
Parts and rotatable parts, rotatable parts contact and are operated alone projector mechanism 7 with projector mechanism 7 and rotate, manually regulation parts with
Rotatable parts engagement connects, and the most indirectly drives projector mechanism 7 to rotate under the transmission of rotatable parts.It is arranged such, makes
Used time, existing manually regulation parts are carried out rotation direction and the angle of coarse adjustment projector mechanism, are then being entered by rotatable parts
Row accurate adjustment, it is simple to projected accurately.Other composition is identical with detailed description of the invention five with annexation.
Detailed description of the invention seven: combine Fig. 1, Fig. 3 and Fig. 6 and present embodiment is described, the manual regulation portion of present embodiment
Part includes handle 8, manual mechanism driving shaft 9, coarse adjustment mechanism driving gear 10 and micro-adjusting mechanism driving gear 11, manual mechanism master
Moving axis 9 is horizontally moveable on base plate 18, and coarse adjustment mechanism driving gear 10 and micro-adjusting mechanism driving gear 11 are sleeved on hands successively
On control mechanism driving shaft 9, and micro-adjusting mechanism driving gear 11 is mounted remotely from projector mechanism near projector mechanism 7 side, handle 8
On the manual mechanism driving shaft 9 of 7 sides.It is arranged such, it is simple to projector mechanism is carried out coarse adjustment.Other composition and annexation with
Detailed description of the invention one, two, three, four, five or six are identical.
Detailed description of the invention eight: combining Fig. 6 and present embodiment is described, the rotatable parts of present embodiment include the second stepping
Motor 21, rotatable parts driving gear 22, manual mechanism driven shaft 15, coarse adjustment mechanism driven gear 14, micro-adjusting mechanism driven tooth
Wheel 12 and regulation rubber wheel 50, rotatable parts driving gear 22 is sleeved on the output shaft of the second motor 21, manual mechanism
Driven shaft 15 be arranged in parallel with the output shaft of the second motor 21, and it is driven that coarse adjustment mechanism driven gear 14 is sleeved on manual mechanism
One end of axle 15 is also engaged with rotatable parts driving gear 22, or coarse adjustment mechanism driven gear 14 and coarse adjustment mechanism driving gear 10
Engagement, micro-adjusting mechanism driven gear 12 is sleeved on the middle part of manual mechanism driven shaft 15, micro-adjusting mechanism driven gear 12 and fine setting
Mechanism's driving gear 11 engages, and regulation rubber wheel 50 is sleeved on the other end of manual mechanism driven shaft 15, and regulation rubber wheel 50
Contact with projector mechanism 7.It is arranged such, it is simple to after coarse adjustment, it is achieved the accurate adjustment to projector mechanism.Other composition and connection are closed
It is identical with detailed description of the invention seven.
Detailed description of the invention nine: combining Fig. 1 and present embodiment is described, the rotatable parts of present embodiment also include rotary shaft
Bearing, rotary shaft bearing is arranged on base plate 18, and manual mechanism driven shaft 15 is located in rotary shaft bearing.It is arranged such, makes
With more flexibly, reliably.Other composition is identical with detailed description of the invention seven or eight with annexation.
Detailed description of the invention ten: combine Fig. 1 and present embodiment is described, the fixed plate 17 of present embodiment is fixed for rectangle
Plate.It is arranged such, uniform three universal wheels on the bottom face of fixed plate 17, it is simple to provide for projector mechanism and move more flexibly
Environment.Other composition and annexation and detailed description of the invention seven, eight or nine are identical.
Further, the structure of the present invention is dissolved into it is applied to the universal projection apparatus for demonstrating of engineering graphics teaching
In, its entirety includes projectual body Model, shot-light, perspective plane, display screen, Unidirectional transparent glass spherical shell, rubber wheel, three axle tops
Spiral shell instrument, motor, miniature image processing system and basic circuit and mechanical framework etc..Perspective plane and shot-light are positioned at ball
The inside of body, and opposing parallel static；Projectual body Model is positioned at spheroid circle centre position, three-axis gyroscope fix；Spherical shell
Being supported by 4 spherical rollers of 2 rubber wheels, top half is uniformly distributed spacing by 4 universal wheels, and the latter half is by 2 voluntarily
The cone rubber wheel of design supports；Image on perspective plane through mirror reflection, then by convex lens focus before camera lens to gather
In the camera lens of image information, array of optical sensors in camera lens, collection information passes to miniature image processor and is simulated letter
Number process and analog digital conversion and Digital Signal Processing, and then pass to bin, then show to display.Spherical shell is selected unidirectional
Transparent glass material, the shade reaching to see clearly the perspective plane, inside of ball from the outside of ball when the inside shot-light work of ball becomes
Picture, the light outside minimizing is irradiated to ball interior and projection imaging is produced interference；Projectual body Model utilize magnetic plate or its
His sliceable basic graphics frame structure assembled, is outer contour with ensure to be projected out, it is to avoid occur it being a sheet of
Shaded area and less than the situation of outer contour and readily accessible assembling, there is motility high, the feature of low cost；Rubber wheel
It is big that the reason selected is because rubber friction coefficient, it is intended to also will not produce cut when rubber wheel produces sliding friction on glass
Cause the transparency affecting glass surface, and to design rubber wheel be that taper is disposed vertically, and fit tightly with spheroid be intended to
Spheroid does not produce sliding friction.
Mechanical transmission unit mainly controls spheroid and does the rotation in each orientation, and the model at the centre of sphere is motionless to reach comprehensive
Change the effect of face projection.Machine driving control system by the rotation of first one rubber wheel of step motor control, handle control with
The rotation of the rubber wheel that the first motor is relative, by the switching of meshing gear in gear train, it is achieved coarse adjustment turns with fine setting
Change, first improve rotating speed and make projected objects be in initial projected position with higher efficiency, then reduce rotating speed to improve rubber wheel
Rotation precision, make projected objects be in initial projected position with higher precision.Meanwhile photoelectric sensor is adopted
The tach signal of collection hand rubber wheel, forms square-wave pulse signal through shaping circuit and passes to the first stepper motor driver,
Driver inputs motor winding after then control signal being processed, and allows the first motor rotate forward with identical speed or incites somebody to action
A+ and A-(or B+ and B-) of motor and driver wiring arranges and exchanges button and realize rotating backward.If two rubber wheels turn in the same direction
Dynamic, then spheroid vertical direction rotates, if two rubber wheels rotate backward, then ball horizontal direction rotates, ball to be moved to
Upper which point, can be in two steps by rubber wheel rotating in same direction with rotated backward kinetic control system.Regulate front view
There are manually and automatically two kinds of control modes to reach side view and top view requirement position behind position, engaged by the different gear of switching
Thus switch Non-follow control and automatically control.Manual control part, handwheel and rubber wheel have fixing gear ratio 2:1, i.e. handwheel
Turning 2 circles, rubber round 1 encloses, and intercepts ball with the horizontal plane being parallel to rubber wheel axis at the contact point of rubber wheel with spheroid, cuts
The girth of face circle is 4 times of rubber wheel girth, reaches handwheel and turn 2 whole circles in the case of not considering sliding friction, and spheroid rotates
90°；Automatically control part, by Single-chip Controlling the first motor and the second motor, coding, arrange pulse by
Button, presses pulse button for the first time, the motion of the second motor joystick rubber wheel, such as when perspective plane and light source all
Being in and be vertically in same plane with two friction pulleys the most respectively, the second motor and the first step motor control friction pulley are reverse
Take two turns and obtain side view, at input pulsatile once signal, make two friction pulleys rotating in same direction two circle simultaneously obtain top view.Two kinds
The control method position that after being all intended to adjust front view, convenient accurately regulation top view is relative with side view.
The hollow ball internal structure of the application mainly lays projectual body Model on three-axis gyroscope.Three axle tops
Spiral shell instrument includes that two framework support bars, two balance rings and one are projected object bearing and constitute.Gyroscope makes material and selects
There is the PMMA material of the features such as preferable light transmission, intensity height, light weight.Three-axis gyroscope framework uses threaded, at ball
A pair symmetrical reverse screwed hole is opened by any place of light source in body center, and side is through hole, and side is obstructed.During installation, first apply
External force installs through hole support bar, and the support bar always screwed to obstructed hole enters and can align blind hole screw thread, reversely twist and, make
Through hole support bar beyond sphere returns to inside spherical shell.Support bar is hinged with balance ring, and envelope polishing makes hinged place rub as far as possible
Power is minimum.The lower middle portion of internal balance ring is laid and is projected model, balance ring on threaded go out bearing platform or bracing frame
Deng transparent material make object, make the projectual body weight heart in lower semi-ring, when framework moves with spheroid, three-axis gyroscope
In two balance rings make corresponding compensation, recover time static after reaching projected objects model transfixion or rotating by a small margin
The just requirement of position.
The perspective plane imaging display system of the present invention is by a set of optical information collecting part, data processing section and display screen
Image displaying part is grouped into.The directional light that CCFL sends is radiated on the object model supported by three-axis gyroscope,
Shading profile on perspective plane.In view of face sciagraphy is changed in needs demonstration, operating process can be deposited the not side of imaging on the projection surface
The problem that person who happens to be on hand for an errand's eye is directly observed, and the three-view diagram of comparison model can not be observed intuitively, so we design a set of projection
Surface imaging display system.First, by illuminator and the combination of camera lens, make the light of projector panel walk around gyroscope and object mould
Type focused transmission is on CCD photoelectric sensor；Further, after CCD exposes, photodiode is excited by light and is released
Releasing electric charge, generate the signal of telecommunication of photo-sensitive cell, CCD control chip utilizes the control signal lines in photo-sensitive cell to luminous two
The electric current that pole pipe produces is controlled, electric current transmission circuit export；Further, CCD can be by the telecommunications of Polaroid generation
Number collect, unified output to amplifier, through amplifying and the filtered signal of telecommunication is sent on A/D converter, by A/D
The signal of telecommunication (analogue signal) is converted to digital signal by transducer, is the data of image；Further, due to these picture number
According to image can't be directly generated, it is then outputted in DSP (digital signal processor), in dsp, it will to these picture number
According to processing, brightness value is set, is white higher than set-point, is black less than set-point, and is encoded to what machine was supported
Picture format, resolution, be stored on bin；Further, it is transferred in display show perspective plane imaging.In this imaging
In display system, use and control exposure frequency, it is intended to control to gather image data information, the most several times imaging several times.Such as three regard
Figure, needs expose for three times, collection cubic graph as data message, and then display show time according to plane three-view diagram typesetting, it is simple to
Observe imaging results.And can deduced image, print with printing device, obtain papery version three-view diagram.
The external structure framework of the present invention is consolidated with unidirectional with framework by three roller equilateral triangle distributions of upper part
Can produce rolling relatively depending on hollow ball, lower part is propped up with having two vertical placement cone rubber wheels and a positive angular distribution of roller
Support and control to turn to.The inside of single plane fluoroscopy hollow ball includes object model that three-axis gyroscope supports, perspective plane, shot-light composition
Optical projection system and imaging display system in image capturing system.Hollow ball by plane respectively at diameter 1/2 and directly
Footpath is to section at 2/15, is divided into three parts and all to be screwed up by spiral be a complete hollow ball, and taking apart at radius is for side
Just ball inner part is installed and later maintenance overhaul, takes apart and facilitate laying and the putting of model in operating process of shot-light at 2/15
Put.Convenient for illustrating, claim the part accounting for 13/15 to be referred to as big hemisphere herein, another part is referred to as little hemisphere.Little hemisphere and shot-light
Consolidation, and in the shot-light interlayer with little hemisphere, place soft package lithium battery, little hemisphere is opened a hole and is intended to fill to power supply
Electricity, the used time does not blocks with rubber stopper, it is ensured that the shape of sphere.The positive pair cross-section of shot-light is perspective plane, by glued and hollow ball
In conjunction with.At the reflecting mirror installed above on perspective plane, it is symmetrically installed the camera lens top at shot-light, it is intended to walk around model stop and make reflective
The light of mirror reflection enters in camera lens.Simultaneously on hollow ball perforate as embedded socket, when modal position angular adjustment good it
After, it is connected with the data processing section outside ball and display screen.
As it is shown in figure 1, fixed plate 17 consolidates with base plate 18 framework.
As it is shown on figure 3, handle 8 rotates, transfer torque to coarse adjustment mechanism driving gear 10 by manual mechanism main shaft 9,
Coarse adjustment mechanism driving gear 10 engages with coarse adjustment mechanism driven gear 14 as drivewheel, is further delivered to rubber wheel 13
On, drive rubber wheel 13 to rotate；After coarse adjustment completes, handle 8 pushes inward, coarse adjustment mechanism driving gear 10 and coarse adjustment mechanism driven tooth
Wheel 10 is disengaged from, and micro-adjusting mechanism driving gear 11 engages with micro-adjusting mechanism driven gear 12, changes the gear ratio of twice engagement,
Realize the conversion of coarse adjustment fine setting further, complete to be projected the regulation of object initial position.Further, as shown in Figure 6, handle
8 outwards move extreme position to, make on manual mechanism main shaft coarse adjustment mechanism driving gear 10 and micro-adjusting mechanism driving gear 11 all with
Driven pulley is disengaged from；Further, the second motor 21 pushes away inward, make drive mechanism driving gear 22 and coarse adjustment mechanism from
Moving gear 14 engages, and is switched to automatically control projection mode.
During as in figure 2 it is shown, manually regulate handle, close the second motor 21 power supply or by outside for the second motor 21
Shifting is allowed to be disengaged from, and by the rotating speed of photoelectric sensor detection handle, carries out signal processing through single-chip microcomputer, pulse is believed
Number be sent to the first motor 1, further control on the right side of rubber wheel rotate, make two rubber wheels can reach constant speed and turn in the same direction
Dynamic or constant speed rotates backward, and as shown in Figure 6, during rotating in same direction, projector mechanism Vertical Square moves upward, and as shown in Figure 4, reversely turns
Projector mechanism horizontal motion time dynamic.When automatically controlling, connect the second motor 21 power supply or by the second motor 21
Move inwards and be allowed to engage with micro-adjusting mechanism driving gear 11, programming Control the first motor 1 and the second stepping electricity in single-chip microcomputer
Machine 21, arranges pulse button, presses pulse button for the first time, the motion of rubber wheel 13 on the right side of the first motor 1 control, the
The motion of the regulation rubber wheel 50 on the left of two stepping motor 21 control, when the second motor 21 and the first motor 1 control
Regulation rubber wheel 50 reversely takes two turns and obtains side view；At input pulsatile once, the second motor 21 and the first motor 1
Control rubber wheel rotating in same direction two circle and obtain side view.
As it is shown in fig. 7, image acquisition part further elucidated above, often to single-chip microcomputer while pulsatile once to motor
It is simultaneously emitted by interrupting to image capturing system, allows camera lens exposure image, the graphical information collected is processed, with three-view diagram
Typesetting imaging.
Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, art technology
Personnel can also do other changes in spirit of the present invention, and is applied in the NM field of the present invention, and certainly, these depend on
The change done according to present invention spirit all should be included in scope of the present invention.
Claims (10)
1. the mechanical transmission unit of a Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that: it includes base plate (18), consolidates
Determine on plate (17), projector mechanism (7), drive mechanism, governor motion and multiple universal wheel (16), fixed plate (17) and base plate (18)
Under be arranged in parallel, projector mechanism (7) is installed between fixed plate (17) and base plate (18), the top of projector mechanism (7) by peace
The multiple universal wheels (16) being contained in fixed plate (17) lower end slidably position, the both sides of projector mechanism (7) be arranged on base plate
(18) drive mechanism and governor motion on contact, and drive mechanism and governor motion drive projector mechanism (7) to rotate.
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Projector mechanism (7) is single plane fluoroscopy hollow glass ball.
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Single plane fluoroscopy hollow ball is sectioned respectively by plane at diameter 1/2 and at a diameter of 2/15, is divided into three parts and all passes through
It is a complete hollow ball that spiral screws up.
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Drive mechanism include the first driving motor (1), drive actively shaft coupling (2), drive mechanism driving gear (4), bearing block (19),
Drive mechanism driven gear (6) and driving rubber wheel (13), bearing block (19) is arranged on base plate (18), drive mechanism driven tooth
Wheel (6) is arranged on bearing block (19) by drive mechanism driven shaft, and the outboard end of drive mechanism driven shaft is provided with driving
Rubber wheel (13), drives rubber wheel (13) to contact with the lateral wall of projector mechanism (7), and first drives motor (1) to be arranged on base plate
(18), on, first drives the outfan of motor (1) by driving actively shaft coupling (2) to be connected with drive mechanism driving shaft, drives
Mechanism's driving gear (4) is sleeved on drive mechanism driving shaft, drive mechanism driving gear (4) and drive mechanism driven gear
(6) engagement.
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Rubber wheel (13) is driven to match with the outer contour shape of projector mechanism (7) with the contact surface shape of projector mechanism (7).
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Governor motion includes manually regulating parts and rotatable parts, and rotatable parts contact with projector mechanism (7) and scialyscope is operated alone
Structure (7) rotates, and manually regulation parts are connected with rotatable parts engagement, the most indirectly drive throwing under the transmission of rotatable parts
Shadow mechanism (7) rotates.
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Manually regulation parts include that handle (8), manual mechanism driving shaft (9), coarse adjustment mechanism driving gear (10) and micro-adjusting mechanism are actively
Gear (11), manual mechanism driving shaft (9) is horizontally moveable on base plate (18), coarse adjustment mechanism driving gear (10) and freqency fine adjustment machine
Structure driving gear (11) is sleeved on manual mechanism driving shaft (9) successively, and micro-adjusting mechanism driving gear (11) is near scialyscope
Structure (7) side, handle (8) is mounted remotely from the manual mechanism driving shaft (9) of projector mechanism (7) side.
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Rotatable parts include the second motor (21), rotatable parts driving gear (22), manual mechanism driven shaft (15), coarse adjustment mechanism
Driven gear (14), micro-adjusting mechanism driven gear (12) and regulation rubber wheel (50), rotatable parts driving gear (22) is sleeved on
On the output shaft of the second motor (21), manual mechanism driven shaft (15) is parallel with the output shaft of the second motor (21) to be set
Put, coarse adjustment mechanism driven gear (14) be sleeved on manual mechanism driven shaft (15) one end and with rotatable parts driving gear (22)
Engaging, or coarse adjustment mechanism driven gear (14) engages with coarse adjustment mechanism driving gear (10), micro-adjusting mechanism driven gear (12) overlaps
Being contained in the middle part of manual mechanism driven shaft (15), micro-adjusting mechanism driven gear (12) engages with micro-adjusting mechanism driving gear (11),
Regulation rubber wheel (50) is sleeved on the other end of manual mechanism driven shaft (15), and regulates rubber wheel (50) and projector mechanism (7)
Contact.
A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating, it is characterised in that:
Rotatable parts also include that rotary shaft bearing, rotary shaft bearing are arranged on base plate (18), and manual mechanism driven shaft (15) is located in
In rotary shaft bearing.
10. according to the mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating a kind of described in claim 1 or 9, its feature
It is: fixed plate (17) is rectangular retaining plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887895.4A CN106251716A (en) | 2016-10-11 | 2016-10-11 | A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887895.4A CN106251716A (en) | 2016-10-11 | 2016-10-11 | A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating |
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| Publication Number | Publication Date |
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| CN106251716A true CN106251716A (en) | 2016-12-21 |
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|---|---|---|---|
| CN201610887895.4A Pending CN106251716A (en) | 2016-10-11 | 2016-10-11 | A kind of mechanical transmission unit of Graphing of Engineering universal projection apparatus for demonstrating |
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| CN (1) | CN106251716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107894686A (en) * | 2017-11-23 | 2018-04-10 | 郑州广角科贸有限公司 | A kind of smart projector for being easy to regulation |
| CN114264291A (en) * | 2022-02-28 | 2022-04-01 | 山东省地质矿产勘查开发局第五地质大队（山东省第五地质矿产勘查院） | Survey and drawing geography is with mark measurement station device based on open water source |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107894686A (en) * | 2017-11-23 | 2018-04-10 | 郑州广角科贸有限公司 | A kind of smart projector for being easy to regulation |
| CN114264291A (en) * | 2022-02-28 | 2022-04-01 | 山东省地质矿产勘查开发局第五地质大队（山东省第五地质矿产勘查院） | Survey and drawing geography is with mark measurement station device based on open water source |
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