CN204759905U - Principles of internal -Combustion engine reputation teaching demonstration system - Google Patents

Abstract

The utility model discloses a principles of internal -Combustion engine reputation teaching demonstration system, including structure of internal -Combustion engine spare part and outside transmission, photoelectricity and control unit, this system not only can vivid show gasoline engine theory of operation but also can switch over through control system and show the diesel engine theory of operation, and gasoline engine and diesel engine theory of operation and characteristics have compounded. It adopts the technique that fuses mechatronic, with the battery powered mesh of realizing gasoline engine and diesel engine principle show automated control that reaches, and embody with forms directly perceived such as reputations, it is high to have spare part sharing rate, and material saving, compact structure is distinct and degree of automation is high, advantages such as the extensive portable of power source removal, host material adopts glass more, transparent medium such as plastics and the extensive material in source such as wooden, possess the characteristics that clearly represent gasoline engine and diesel engine groundwork principle similarities and differences point.

Description

Principles of Internal-Combustion Engine acousto-optic teaching demonstration system

Technical field

The utility model relates to internal combustion engine teaching religion instrument field, especially a kind of integrated compound acousto-optic teaching demonstration system of Principles of Internal-Combustion Engine comprising gasoline engine and diesel engine.

Background technology

Engine is as communications and transportation, the power resources of engineering machinery etc., to national economy production and technical development, there is vital role, and it is current along with the national automobile industry of independent intellectual property right of China and the develop rapidly of technology, also increasing to the demand of the engine technology industry talent, particularly engine technology achieves progress at full speed in the last few years, the technology such as traditional gasoline engine and the increasing applying electronic control of diesel engine, make the principle of work of engine also thereupon complicated, in order to promote and meet engine technology industry professional to machinery initial awareness and understanding, thus the deep enough research and development carrying out engine new technologies and materials of energy, need development structure and the principle engine instruments used for education that reasonable cost is cheaper more to meet growing teaching and Technique Popularizing demand.

Common, traditional explosive motor is divided into gasoline engine and diesel engine two kinds, and due to the difference of these two kinds of engine self principle of work and the complicacy of structure, and inner structure is accurate, the reasons such as component number is many, initial contact engine is difficult to differentiated its overall work principle and be familiar with, simultaneously, because gasoline engine and diesel engine are mostly shown by current engine teaching mode respectively, difference between the two and common ground need learner oneself comprehension and resolution in addition, and not easily image display and the expression of engine interior parts, therefore just in the urgent need to can not only vivid displaying engine interior structure and principle of work but also gasoline engine and diesel engine compound can be integrated and be convenient to the instruments used for education that visiting and learning person intuitively understands two kinds of engine similarities and differences, consider in recent years to the demand growth trend of instruments used for education simultaneously, also will to the cost of instruments used for education and material reuse and the feature of environmental protection etc. takes in, meet and conveniently can show that gasoline engine and diesel engine principle of work similarities and differences again can economize energy and to produce the engine instruments used for education of environmental benefit just important all the more.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of Principles of Internal-Combustion Engine acousto-optic teaching demonstration system, this system is integrated in two of reciprocating-piston engine kinds of engine model gasoline engines and diesel engine on a Graphic Panel, compact conformation is convenient and reasonable, gasoline engine and engine block theory teaching can be realized simultaneously, the basic similarities and differences of teaching object to two kinds of internal combustion engines is facilitated to distinguish and distinguish, thus producing clear lasting impression, the teaching of the introduction such as combustion motor industry provides useful help.

For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of Principles of Internal-Combustion Engine acousto-optic teaching demonstration system, it is characterized in that the Graphic Panel comprising firm banking and be placed on firm banking, and Graphic Panel is provided with the bent axle of horizontal positioned, bent axle is connected with the piston of the upper and lower loopy moving with crank rotation, piston is placed in piston cylinder, air intake opening and exhausr port is provided with in the two sides of piston cylinder, oil-in is provided with in the air intake opening position of piston cylinder, atomizer support is provided with directly over piston, and at the corresponding actual gasoline engine atomizer of Graphic Panel pros and cons, spark plug and diesel injector position mounted LED lamp, camshaft is provided with in the position level of atomizer support, camshaft is provided with two valve lifters of the upper and lower loopy moving with cam axle, valve lifter lays respectively at the both sides of atomizer support, valve lifter end is provided with valve, synchronous axial system between described camshaft and bent axle, its rotating ratio is 1:2, drive unit is provided with at the other end of bent axle.

Said structure is further qualified, described camshaft left end is fixed with camshaft end time gear, the left end of bent axle is fixed with crankshaft end time gear, connected by Timing Belt between camshaft end time gear and crankshaft end time gear, ensure that camshaft and bent axle are 1:2 synchronous axial system according to rotating ratio.

Said structure is further qualified, described drive unit comprises DSP control panel and power pack, described DSP control panel is connected with the power driving stepper motor being located at piston cylinder outer wall, the output shaft of power stepper motor is provided with the power driving gear that can slide along axle, and the power driving gear bent axle power gear affixed with bent axle side is meshed; Power pack is connected with total power switch, and power stepper motor is connected with motor switch branch road.

Said structure is further qualified, the described piston position that is provided with in the both sides of piston cylinder shows color lamp, be respectively equipped with draft tube at the porting place of piston cylinder and show that color lamp shown by color lamp and gas outlet, the position that the middle part of described atomizer support is relative with piston is provided with atomizer LED, described piston position shows that color lamp, draft tube show that color lamp, gas outlet show that color lamp is all connected with DSP control panel with atomizer LED, forms diesel engine acousto-optic teaching demonstration system.

Said structure is further qualified, the described piston position that is provided with in the both sides of piston cylinder shows color lamp, be respectively equipped with draft tube at the porting place of piston cylinder and show that color lamp shown by color lamp and gas outlet, the position that the middle part of described atomizer support is relative with piston is provided with spark plug LED, gasoline engine atomizer LED is provided with in the position of piston cylinder oil-in, described piston position shows color lamp, draft tube shows color lamp, color lamp shown by gas outlet, spark plug LED is all connected with DSP control panel with gasoline engine atomizer LED, form gasoline engine acousto-optic teaching demonstration system.

Said structure is further qualified, described gas outlet shows that color lamp, draft tube show that color lamp, piston position show that color lamp is in parallel by 5 little LED respectively, loudspeaker is fixed at Graphic Panel one jiao, loudspeaker is powered by power pack, and having DSP control panel to control speech sound eeplaining, bright light order and speech sound eeplaining process are rotated with power stepper motor the piston position driven and are coordinated.

Said structure is further qualified, the surface decentration position of described bent axle power gear is provided with bent axle power gear handle, and the outside framework of the Graphic Panel relative with bent axle power gear is provided with can the hand hole of folding, hand hole place is provided with hinge, and the folding baffle plate that hinge is installed is can carry out manual actuation bent axle power gear handle and to drive power driving gear to be advisable.

Be further qualified said structure, described firm banking is square cast iron, and middle welding support is provided with the rolling bearing connecting Graphic Panel, and wherein Graphic Panel is the wooden square structure of light easy punching.

Said structure is further qualified, the top of described Graphic Panel is the cuboid structure of hollow, be provided with slip wall chart framework at its top, slip wall chart framework be equidistantly provided with wall chart magnet, the hand-strap be convenient for carrying is installed on the top of Graphic Panel.

Said structure is further qualified, the dindar colloid for showing is provided with in described piston cylinder, described dindar colloid upper suspension is fixed, piston adopts light aluminum alloy and makes without top and hollow structure, expose in piston up-down process or hide throw of poston and show that dindar colloid is part or all of, and the LED above control piston, to show throw of poston position and oil spout or time of ignition.

The beneficial effect adopting technique scheme to produce is:

(1) two of reciprocating-piston engine kinds of engine model gasoline engines and diesel engine are integrated on a demonstration board by the utility model, compact conformation is convenient and reasonable, gasoline engine and engine block theory teaching can be realized simultaneously, the basic similarities and differences of teaching object to two kinds of internal combustion engines is facilitated to distinguish and distinguish, thus producing clear lasting impression, the teaching of the introduction such as combustion motor industry provides useful help;

(2) together with gasoline engine is arranged in engine block by the utility model employing same Graphic Panel, light displaying and sound explanation teaching are carried out to both differences, front and back panel shows gasoline engine and diesel engine respectively, flexibly easy to adjust, and component universality is better, maintenance and repair cost is low, and the sound and light program of employing is vivid;

(3) the utility model adopts electronic and manual changeable power drive mode, and the power supply that driven by power relies on the wide material sources such as dry cell cheap, cost-saving, certain protective effect is had to environment, electronic mode of operation relies on minitype motivation stepper motor to drive and drives driving gear and crank rotation, realize reciprocating-piston engine principle of work to show, manual mode can utilize the handle turning crankshaft be arranged on crank-driven gear, realizes reciprocating-piston engine principle of work equally and shows;

(4) the utility model installs rolling bearing bottom Graphic Panel, conveniently Graphic Panel can be rotated, counter plate not coplanar is shown, and the position identical with diesel engine principle of work to gasoline engine adopts same parts, bandwagon effect is obviously clear, arrange separately in gasoline engine Graphic Panel face at admission line gasoline engine atomizer, the spark plug of diesel injector and gasoline engine adopts same display member, utilizes color lamp and Tyndall phenomenon image display;

(5) the utility model adopts DSP control panel not controlling in the same time and showing engine operation principle, mediated a settlement by the comprehensive solution in detail of the modes such as color lamp and loudspeaker recording and show gasoline engine and diesel engine principle of work, convenient and reliable, vivid, reduce the difficulty and threshold of understanding understanding internal combustion engine principle;

(6) the utility model installs a magnet link plate that can extract out on Graphic Panel top, while carrying out automatic Display and explanation Principles of Internal-Combustion Engine, internal combustion engine plane drawing can be hung up displaying by faculty according to actual needs, facilitate study personnel combustion motor solid to contrast with planar structure, deepen study personnel impression;

(7) general frame supporting construction of the present utility model adopts wood materials, gear and bent axle, piston etc. all adopt the transparent materials such as nylon plastic(s), color lamp adopts the energy-conservation lampet of LED, therefore, parts wide material sources used, with low cost, and parts machining is convenient for production, is convenient to mass production;

(8) the utility model adopts and is convenient for carrying and the monolithic construction of movement, be installed in a fixed frame by unified for all parts, person easy to use moves and carries, thus can observe Graphic Panel with orientation from different perspectives, deepens the understanding of combustion motor principle;

(9) the utility model color lamp connection and reasonable arrangement, at intake and exhaust pipeline position and piston-cylinder position, some equidistant color lamps are installed respectively, bright light order is realized by DSP control panel, image display engine charge, exhaust and piston operational process, and programming is closed according to real engine inlet and exhaust valve roughly and opening time is arranged, there is quite high authenticity, can further understand the real engine course of work in depth to beginner and principle lays the first stone.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is the structural representation in the utility model front, for showing diesel engine principle of work;

Fig. 2 is the structural representation at the utility model back side, for showing gasoline engine principle of work;

Fig. 3 is the physical construction schematic diagram removing control circui circuit;

Fig. 4 electronic control part wire structures schematic diagram;

Wherein: 1, firm banking; 2, rolling bearing; 3, crankshaft bearing seat; 4, hinge; 5, bent axle power gear; 6, bent axle power gear handle; 7, power driving gear; 8, power stepper motor; 9, power driving gear sliding axle; 10, operation circuit; 11, power pack; 12, DSP control panel; 13, color lamp shown by gas outlet; 14, camshaft bearing bush seat; 15, camshaft bearing; 16, camshaft fixed mount; 17, loudspeaker; 18, wall chart magnet; 19, hand-strap; 20, atomizer support; 21, camshaft; 22, slip Hanging chart stand; 23, valve lifter; 24, camshaft end time gear; 25, draft tube shows color lamp; 26, valve; 27, atomizer LED; 28, dindar colloid; 29, piston position shows color lamp; 30, piston; 31, Timing Belt; 32, piston pin; 33, connecting rod; 34, crankshaft end time gear; 35, crank throw; 36, crank pin; 37, bent axle; 38, Graphic Panel; 39, spark plug LED; 40, gasoline engine atomizer LED; A, total power switch; B, motor switch.

Embodiment

With reference to the accompanying drawings 1 and 2 and accompanying drawing 4 can find out, the utility model is specifically related to a kind of Principles of Internal-Combustion Engine acousto-optic teaching demonstration system, and this system comprises firm banking 1, rolling bearing 2, crankshaft bearing seat 3, hinge 4, bent axle power gear 5, bent axle power gear handle 6, power driving gear 7, power stepper motor 8, power driving gear sliding axle 9, operation circuit 10, power pack 11, DSP control panel 12, color lamp 13 shown by gas outlet, camshaft bearing bush seat 14, camshaft bearing 15, camshaft fixed mount 16, loudspeaker 17, wall chart magnet 18, hand-strap 19, atomizer support 20, camshaft 21, slip Hanging chart stand 22, valve lifter 23, camshaft end time gear 24, draft tube shows color lamp 25, valve 26, atomizer LED 27, dindar colloid 28, piston position shows color lamp 29, piston 30, Timing Belt 31, piston pin 32, connecting rod 33, crankshaft end time gear 34, crank throw 35, crank pin 36, bent axle 37, Graphic Panel 38, spark plug LED 39, gasoline engine atomizer LED 40, total power switch A, motor switch B, its structure composition and position relationship are as Figure 1-4.

See shown in accompanying drawing 1, firm banking 1 in the utility model is centre of gravity counterweight, prevent demonstration board in the course of the work from toppling, it is welded as one section of multidiameter and rolling bearing 2 is installed, rolling bearing 2 is installed Graphic Panel 38, side is opened a door installation hinge 4 and is conveniently carried out automatically and manual switchover, crankshaft bearing seat 3 is installed in Graphic Panel 38 inside, atomizer support 20, camshaft bearing bush seat 14 and camshaft fixed mount 16, power stepper motor 8 installed respectively by these supports, power driving gear sliding axle 9, loudspeaker 17, camshaft 21, piston 30, the internal combustion engine primary structure parts such as Timing Belt 31 and bent axle 37, in remaining space position, operation circuit 10 is installed respectively, power pack 11, accessory structure such as DSP control panel 12 grade, Graphic Panel 38 top is hollow, rectangular body, placed inside slip Hanging chart stand 22.

Concrete structure parts assembling form is carried out according to actual Structure of Internal-Combustion Engine, Graphic Panel 38 adopts the wooden structures easily obtaining and process, the parts such as piston 30, valve 26 adopt light aluminum alloy material, the parts such as bent axle 37, camshaft 21 adopt the nylon plastic(s) of light durable, the parts such as the dindar colloid 28 of air inlet-outlet pipe, piston 30 position adopt the material such as clear glass or resin, to alleviate the effect of the inertia of resistance in operation process and movement parts, reach and improve demonstration degree of accuracy, strengthen visual effect and convenient object of observing.

Principles of Internal-Combustion Engine and component structural Graphic Panel, in order to realize manual and electronic switching, conveniently manually operated door is carried out at the outside framework one side opening certain altitude of Graphic Panel 38, be arranged on outside framework with hinge 4, and match in power driving gear 7 position be connected with power stepper motor 8 main shaft, power driving gear 7 is connected with power stepper motor 8 main shaft by spline, power driving gear 7 can slide axially on the power driving gear sliding axle 9 of power stepper motor 8, meets automatic and manual operation and controls needs.

The utility model is when carrying out automatic demonstrating, open power stepper motor 8 and drive power driving gear 7, the bent axle power gear 5 be engaged with is rotated together, band dynamic crankshaft 37 moves, realize piston about 30 to run, control intake and exhaust pipeline by DSP control panel 12 plug-in simultaneously, inlet and exhaust valve, the color lamps such as piston position and loudspeaker 17 are explained, need during manual actuation, power driving gear 7 to be slid on one side, this gear is departed from the bent axle power gear 5 be arranged on bent axle 37 engage, in turning crankshaft power gear, the bent axle power gear handle 6 of 5 can carry out substep demonstration in detail,

Gasoline engine structure and principle of work are shown in the front of this system, engine block parts and principle of work are shown in the back side, gasoline engine and the control of working process of diesel engine principle is carried out respectively by DSP control panel 12 different choice shift knob, wherein, piston 30, bent axle 37, camshaft 21, air inlet-outlet pipe and valve 26 etc. are for sharing parts, in order to distinguish the difference of gasoline engine and diesel engine principle of work, gasoline engine Graphic Panel installs spark plug LED 39 on piston 30 top, at admission line medium position, gasoline engine atomizer LED 40 is installed simultaneously, and in position marked, diesel engine Graphic Panel is in upper piston area mounting diesel engine machine atomizer LED 27, and in position marked,

When gasoline engine and Diesel principle are shown, share parts and carry out layout installation according to normal engine function principle common ground, bent axle power gear 5 driving crank 37 drives crank throw 35 and crank pin 36 and drive link 33 is moved, piston 30 is driven to move up and down, the crankshaft end of bent axle 37 other end installation simultaneously time gear 34 drive Timing Belt 31 to move, driving cam end time gear 24 rotate and camshaft 21 are rotated according to certain rule with bent axle 37, and the final valve lifter 23 that promotes drives valve 26 to move, shared parts are all arranged on by bearing on the supporting seat of outside framework inside setting, tow sides can be realized and see same parts.

Share in parts, piston 30 is the aluminum alloy material of the hollow removing piston top, bottom is installed piston pin 32 and is connected with connecting rod 33, dindar colloid 28 hangs and is fixed on piston 30 hollow structure inside, gasoline engine spark plug LED 39 and diesel injector LED 27 are embedded in the above-head of dindar colloid 28, lighttight aluminum alloy materials can be utilized when piston 30 moves up and down to block or show inner colloidal material, when piston 30 moves to upper and lower stop to show gasoline engine plug ignition or diesel engine fuel injecting respectively process and time in moment by LED.

Diesel engine is all connected with DSP control panel 12 with power pack 11 by operation circuit 10 with the atomizer LED of gasoline engine, the position relationship control program of imprinting piston position and crank angle in DSP control panel 12, when meet piston 30 move to top dead centre, lower dead center, oil injection time, end oil injection time and the plug ignition moment time, control program opens LED bright light, carry out the displayings such as the principle of internal combustion engine working process key node, reach the best effects of visual effect, promote the understanding of the content of courses, improve its vividness.

DSP control panel 12 supplies electric power by power pack 11, control the operation of power stepper motor 8 operation conditions and the color lamp such as air inlet-outlet pipe, piston position and loudspeaker 17, concrete control procedure is: start reference position by conduct after time gear adjustment crank position, later each startup all continues to run for opening control position with the stop position of the last time, when piston 30 moves up and down in four strokes of process in cylinder, each color lamp coordinates loudspeaker 17 to carry out corresponding detailed process demonstration and explanation; The power supply of DSP control panel 12 is only controlled by power pack 11, and when manually demonstrating, disable motor switch B, does not affect the DSP course of work, and crank position continues through feedback and is passed to DSP control panel 12, carries out acousto-optic displaying and explanation to operating process.

The color lamp of play position color lamp and internal combustion engine working process material time node classifies as gasoline engine behavior color lamp and diesel engine behavior color lamp overlaps programmed control by two of record in DSP control panel 12 respectively, control program recording medium installs gauge tap button respectively, control according to gasoline engine and diesel engine demonstration needs, the color lamp being classified as two classes makes these color lamps be controlled by two cover programs according to the connected mode of correspondence respectively, does not interfere.

Its main operational principle is:

(1) automatic demonstrating process

When carrying out automatic demonstrating process, as total power switch A and motor switch B opened by accompanying drawing 1 and accompanying drawing 2 simultaneously, when carrying out gasoline engine or Diesel principle displaying, respectively Graphic Panel corresponding surface is turned to just to direction, press control gasoline engine corresponding on DSP control panel 12 and the programmed control button of diesel engine principle of work and process, power stepper motor 8 drives power driving gear 7 by power driving gear sliding axle 9, and driving crank power gear 5 is rotated, band dynamic crankshaft 37 moves in a circle, wherein, crank throw 35 and crank pin 36 is driven to rotate in bent axle 37 motion process, driving does plane motion with the connecting rod 33 that crank pin 36 is connected with piston 30 and driven plunger 30 makes back and forth rectilinear motion up and down, in piston 30 motion process, the crankshaft end time gear 34 installed by bent axle 37 other end drive camshaft end time gear 24 to make the circular motion of corresponding kinematic relation with bent axle 37 by Timing Belt 31, drive camshaft 21 to move and drive valve lifter 23 to carve when appropriate and open or close valve 26, the rotating ratio of bent axle 37 and camshaft 21 is 2:1, simultaneously, dindar colloid 28, piston position displaying color lamp 29 and gas outlet that throw of poston is shown show that color lamp 13, draft tube show that color lamp 25, atomizer LED 27, spark plug LED 39 and gasoline engine atomizer LED 40 and loudspeaker 17 carry out automatic bright light and report controlling according to the gasoline engine of corresponding selection or Diesel Engine Control program, complete the demonstration of gasoline engine or working process of diesel engine and principle.

(2) manual resolution presentation process

When carrying out manual resolution step presentation process, as shown in accompanying drawing 1 and accompanying drawing 2 and accompanying drawing 3, open total power switch A disable motor switch B simultaneously, rotate the hinge 4 of Graphic Panel 38 avris, open offered wicket, power driving gear 7 is slided outside power driving gear sliding axle 9, power driving gear 7 is departed from and the engaging of bent axle power gear 5, turning crankshaft power gear handle 6 driving crank power gear 5 is rotated, thus band dynamic crankshaft 37 and manual resolution demonstrate the circular motion of speed sync, complete piston 30 by above-mentioned automatic driving Principle of Process to move up and down, simultaneously, corresponding LED and loudspeaker 17 normally work, carry out gasoline engine or working process of diesel engine and principle manual resolution to demonstrate.

The detailed process that gasoline engine of the present utility model or working process of diesel engine principle are shown by means of acousto-optic bandwagon effect is:

1, when carrying out piston 30 up compression process, gasoline engine is identical with working process of diesel engine, piston position shows color lamp 29 successively bright light from bottom to top, atomizer LED 27 or spark plug LED 39 luminescence simultaneously exposes on dindar colloid 28, dindar colloid 28 produces the visual effect that brightness is progressively deepened, demonstration compression process cylinder gas temperature raised feature, the up initial stage, draft tube shows color lamp 25 ecto-entad successively bright light, the slow closed procedure of demonstration inlet valve, loudspeaker 17 reports piston compression stroke and associated principal character;

2, when piston 30 runs to a certain period of moment of before upper dead canter, if gasoline engine demonstrates igniting according to ignition advance angle time flicker spark plug LED 39, if diesel engine demonstrates injection process according to injection advance angle time flicker diesel injector LED 27, loudspeaker 17 reports plug ignition or diesel engine fuel injecting feature;

3, piston 30 is descending when carrying out working stroke, piston position shows color lamp 29 successively bright light from top to bottom, atomizer LED 27 above dindar colloid 28 or spark plug LED 39 brightness weaken gradually, demonstration expansion stroke cylinder interior gas temperature decline feature, a period of time before bottom dead center, color lamp 13 successively bright light from inside to outside shown by gas outlet, and demonstration exhaust valve shifts to an earlier date opening process, and loudspeaker 17 reports expansion working stroke and associated principal character;

4, piston 30 is again up when completing out stroke, piston position shows color lamp 29 successively bright light from bottom to top, atomizer LED 27 above dindar colloid 28 or spark plug LED 39 brightness weaken further, demonstration instroke cylinder interior gas temperature variation feature, color lamp 13 successively bright light from inside to outside shown by gas outlet, demonstration exhaust route, until section sometime after top dead centre, the slow closed procedure of demonstration exhaust valve; Certain a period of time before top dead center, draft tube shows color lamp 25 ecto-entad successively bright light, and demonstration inlet valve shifts to an earlier date opening process, and loudspeaker 17 reports instroke and associated principal character;

5, when piston 30 again descending carry out admission stroke time, draft tube shows color lamp 25 ecto-entad successively bright light, demonstration intake process, piston position shows color lamp 29 successively bright light from top to bottom, if gasoline engine is then according to oil injection time and oil injection duration flicker gasoline engine atomizer LED 40, demonstration gasoline engine oil spout position and air-fuel mixture process, atomizer LED 27 above dindar colloid 28 or spark plug LED 39 keep more weak brightness, demonstration cylinder interior gas temperature variation feature, loudspeaker 17 reports intake process and associated feature.

Accompanying drawing 4 is circuit control system of the present utility model, be divided into two branch roads, control gasoline engine and the required LED of diesel engine displaying respectively, wherein, color lamp 13 shown by gas outlet, draft tube shows color lamp 25, dindar colloid 28, piston position shows that color lamp 29 and power stepper motor 8 are that gasoline engine and diesel engine share, atomizer LED 27 spark plug LED 39, gasoline engine atomizer LED 40 and loudspeaker 17 are controlled by programs different on DSP control panel 12 and switch respectively, DSP control panel 12 is connected by operation circuit 10 with power pack 11, power pack 11 arranges separately total power switch A, power stepper motor 8 is controlled by DSP control panel 12 and arranges motor switch B between power stepper motor 8 and DSP control panel 12, the operation of independent control power stepper motor 8, conveniently carry out automatic and manual actuation switching.

Graphic Panel 38 top design in the utility model is the cuboid of hollow, slip Hanging chart stand 22 can slide pull-out in cuboid cavity, slip Hanging chart stand 22 designs equidistant some wall chart magnet 18, conveniently carry out in stereoscopic exhibition board presentation process, hang up the planar graph of gasoline engine or diesel engine, carry out the teaching of various visual angles various dimensions, promote that teaching innovation inspires, conveniently move at Graphic Panel 38 top design hand-strap 19 at any time and carry this Graphic Panel, improving teaching dirigibility.

In sum, the wooden of light durable is adopted in the utility model, aluminium alloy, clear glass, the materials such as nylon plastic(s), obsolete material can be utilized to carry out improvement processing, meet the theory of energy-saving and emission-reduction and environmental protection, alleviate the weight and volume of gasoline engine or diesel engine Graphic Panel simultaneously, improve the dirigibility of teaching, Graphic Panel 38 arranges slip Hanging chart stand 22 and wall chart magnet 18, conveniently carry out in the process of teaching demonstration, while promoting that student carries out visual in image understanding to the gasoline engine of three-dimensional real object or diesel engine, internal combustion engine planimetric map can be hung up on slip Hanging chart stand 22, carry out three peacekeeping two dimensions to show simultaneously, promote that student's drawing reading ability improves, and excite student's Innovation, adopt bent axle power gear handle 6 and power stepper motor 8 dual dynamic drive form, when powershift, only power driving gear 7 need be slided along power driving gear sliding axle 9, bent axle power gear 5 is departed from power driving gear 7 engage, disable motor switch B, effectively can meet robotization and manual teaching demand, in the process of automatically carrying out demonstrating, color lamp 13 shown by loudspeaker 17 and gas outlet, draft tube shows color lamp 25, oil nozzle LED 27, dindar colloid 28, piston position shows color lamp 29, spark plug LED 39 and gasoline engine atomizer LED 40 etc. can adopt sound and light program to provide detail and the principle of gasoline engine or working process of diesel engine as far as possible, simultaneously teacher also can sidenote, improve the vividness of teaching and rich, deepen the impression of beginner to gasoline engine and working process of diesel engine and principle and similarities and differences, parts compatible with Diesel principle structure for the gasoline engines such as camshaft 21, valve lifter 23, camshaft end time gear 24, valve 26, piston 30, Timing Belt 31, piston pin 32, connecting rod 33, crankshaft end time gear 34, crank throw 35, crank pin 36 and bent axle 37 are shared, assembling simple and flexible, improve the utilization factor of Graphic Panel parts, have expressed the common ground of gasoline engine and diesel engine simultaneously, therefore, this Graphic Panel component universality is high, is convenient to maintenance, power stepper motor 8 is reliably small and exquisite, not high to power requirement, and automatic control power supply group 11 can adopt old and useless battery to power, and improves energy utilization rate, produces reduce requirement to the quantification of Graphic Panel.

Claims (10)

1. a Principles of Internal-Combustion Engine acousto-optic teaching demonstration system, it is characterized in that the Graphic Panel (38) comprising firm banking (1) and be placed on firm banking (1), described Graphic Panel (38) is provided with the bent axle (37) of horizontal positioned, described bent axle (37) is connected with and rotates and the piston (30) of upper and lower loopy moving with bent axle (37), piston (30) is placed in piston cylinder, air intake opening and exhausr port is provided with in the two sides of piston cylinder, oil-in is provided with in the air intake opening position of piston cylinder, atomizer support (20) is provided with directly over piston (30), camshaft (21) is provided with in the position level of atomizer support (20), camshaft (21) is provided with and rotates and two valve lifters (23) of upper and lower loopy moving with camshaft (21), valve lifter (23) lays respectively at the both sides of atomizer support (20), valve lifter (23) end is provided with valve (26), synchronous axial system between described camshaft (21) and bent axle (37), its rotating ratio is 1:2, drive unit is provided with at the other end of bent axle (37).

2. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 1, it is characterized in that described camshaft (21) left end is fixed with camshaft end time gear (24), the left end of bent axle (37) is fixed with crankshaft end time gear (34), connected by Timing Belt (31) between camshaft end time gear (24) and crankshaft end time gear (34), ensure that camshaft (21) and bent axle (37) are 1:2 synchronous axial system according to rotating ratio.

3. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 1 and 2, it is characterized in that described drive unit comprises DSP control panel (12) and power pack (11), described DSP control panel (12) drives with the power stepper motor (8) being located at piston cylinder outer wall and is connected, the output shaft of power stepper motor (8) is provided with the power driving gear (7) that can slide along axle, and power driving gear (7) the bent axle power gear (5) affixed with bent axle (37) side is meshed; Power pack (11) is connected with total power switch (A), and power stepper motor (8) is connected with motor switch (B) branch road.

4. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 3, it is characterized in that the described piston position that is provided with in the both sides of piston cylinder shows color lamp (29), be respectively equipped with draft tube at the porting place of piston cylinder and show that color lamp (13) shown by color lamp (25) and gas outlet, the position that the middle part of described atomizer support (20) is relative with piston (30) is provided with atomizer LED (27), described piston position shows color lamp (29), draft tube shows color lamp (25), gas outlet shows that color lamp (13) is all connected with DSP control panel (12) with atomizer LED (27), form diesel engine acousto-optic teaching demonstration system.

5. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 3, it is characterized in that the position relative with piston (30), the middle part of described atomizer support (20) is provided with spark plug LED (39), gasoline engine atomizer LED (40) is provided with in the position of piston cylinder oil-in, described piston position shows color lamp (29), draft tube shows color lamp (25), color lamp (13) shown by gas outlet, spark plug LED (39) is all connected with DSP control panel (12) with gasoline engine atomizer LED (40), form gasoline engine acousto-optic teaching demonstration system.

6. the Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 4 or 5, it is characterized in that described gas outlet shows that color lamp (13), draft tube show that color lamp (25), piston position show that color lamp (29) is in parallel by 5 little LED respectively, loudspeaker (17) is fixed at Graphic Panel (38) one jiao, loudspeaker (17) is powered by power pack (11), and controlling speech sound eeplaining by DSP control panel (12), bright light order and speech sound eeplaining process are rotated with power stepper motor (8) piston (30) position driven and are coordinated.

7. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 6, it is characterized in that the surface decentration position of described bent axle power gear (5) is provided with bent axle power gear handle (6), and the outside framework of the Graphic Panel (38) relative with bent axle power gear (5) is provided with can the hand hole of folding, hand hole place is provided with hinge (4), and the folding baffle plate that hinge (4) is installed is can carry out manual actuation bent axle power gear handle (6) and to drive power driving gear (7) to be advisable.

8. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 1, it is characterized in that described firm banking (1) is square cast iron, middle welding support is provided with the rolling bearing (2) connecting Graphic Panel (38), and wherein Graphic Panel (38) is the wooden square structure of light easy punching.

9. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 8, it is characterized in that the top of described Graphic Panel (38) is the cuboid structure of hollow, slip wall chart framework (22) is provided with at its top, slip wall chart framework (22) is equidistantly provided with wall chart magnet (18), the hand-strap (19) be convenient for carrying is installed on the top of Graphic Panel (38).

10. Principles of Internal-Combustion Engine acousto-optic teaching demonstration system according to claim 1, it is characterized in that the dindar colloid (28) be provided with in described piston cylinder for showing, described dindar colloid (28) upper suspension is fixed, piston (30) adopts light aluminum alloy and makes without top and hollow structure, expose in piston (30) moves up and down process or hide throw of poston and show that dindar colloid (28) is part or all of, and the LED of control piston (30) top, to show piston (30) travel position and oil spout or time of ignition.